/* ============================================================
   沸腾青年 — Design System & Global Styles
   品牌色: 黑白红 (var(--color-primary))
   风格: 大胆潮流
   ============================================================ */

/* --- Design Tokens --- */
:root {
  /* 品牌色 */
  --color-primary: #C41E3A;
  --color-primary-dark: #A01830;
  --color-primary-light: rgba(196, 30, 58, 0.08);
  --color-primary-15: rgba(196, 30, 58, 0.15);

  /* 黑白 */
  --color-black: #1A1A1A;
  --color-black-soft: #2A2A2A;
  --color-white: #FFFFFF;

  /* 灰度 */
  --color-gray-100: #F5F5F5;
  --color-gray-200: #E5E5E5;
  --color-gray-300: #CCCCCC;
  --color-gray-400: #999999;
  --color-gray-500: #666666;
  --color-gray-600: #333333;

  /* 深色背景变体 */
  --color-black-pure: #000000;
  --color-black-deep: #0A0A0A;
  --color-black-card: #111111;

  /* 品牌色变体 */
  --color-primary-lighter: #E8384F;
  --color-primary-bright: #D92440;

  /* 语义辅助色 */
  --color-success: #10B981;

  /* 教培页深红背景 */
  --color-edu-dark: #2A0A10;

  /* 语义色 */
  --color-bg: #FFFFFF;
  --color-bg-alt: #F5F5F5;
  --color-bg-dark: #1A1A1A;
  --color-text: #1A1A1A;
  --color-text-secondary: #666666;
  --color-text-muted: #999999;
  --color-text-inverse: #FFFFFF;
  --color-border: #E5E5E5;

  /* 字体 */
  --font-serif: 'Noto Serif SC', 'Source Han Serif SC', 'SimSun', serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'Space Grotesk', 'JetBrains Mono', monospace;

  /* 字号 */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;
  --text-hero: 4.5rem;

  /* 字重 */
  --font-regular: 400;
  --font-medium: 500;
  --font-bold: 700;

  /* 间距 */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* 圆角 */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);

  /* 过渡 */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 150ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;

  /* 层级 (z-index) — 从低到高，避免硬编码 */
  --z-neg:           -1;    /* 脉冲动画等，在元素后面 */
  --z-below:         -1;    /* 同 z-neg，语义别名 */
  --z-base:          0;     /* 背景层：视频、KV图、画廊特效背景 */
  --z-above:         1;     /* 渐变遮罩、accent bar、content层、modal内层 */
  --z-raised:        1;     /* 同 z-above，语义别名 */
  --z-local-2:       2;     /* 文字内容、close按钮、thumb overlay */
  --z-content:       2;     /* 同 z-local-2，语义别名 */
  --z-local-3:       3;     /* UI控件：dots、arrows、播放按钮 */
  --z-controls:      3;     /* 同 z-local-3，语义别名 */
  --z-local-4:       4;     /* 操作按钮：play/expand */
  --z-actions:       4;     /* 同 z-local-4，语义别名 */
  --z-local-5:       5;     /* modal关闭按钮、hero controls */
  --z-elevated:      5;     /* 同 z-local-5，语义别名 */
  --z-local-10:      10;    /* hover状态提升 */
  --z-hover:         10;    /* 同 z-local-10，语义别名 */
  --z-dropdown:      100;   /* 下拉菜单、筛选栏 */
  --z-modal:         1000;  /* 固定header、sticky筛选栏、主弹窗 */
  --z-sticky:        1000;  /* 同 z-modal，语义别名 */
  --z-modal-strong:  2000;  /* 视频弹窗 */
  --z-modal-video:   2000;  /* 同 z-modal-strong，语义别名 */
  --z-back-top:      999;   /* 回到顶部按钮 */
  --z-bottom-player: 9000;  /* 底部播放条 */
  --z-toast:         9000;  /* 同 z-bottom-player，语义别名 */
  --z-lightbox:      9998;  /* 图片灯箱 */
  --z-modal-mv:      9999;  /* MV弹窗 */
  --z-max:           9999;  /* 同 z-modal-mv，语义别名 */
  --z-preloader:     10000; /* 主弹窗（讲师、演唱会、剧集）、滚动进度条 */
  --z-progress:      10001; /* 滚动进度条 — 最高层 */
  /* 布局 */
  --header-height: 72px;
  --container-max: 1200px;
  --container-padding: var(--space-6);
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-regular);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

.section-dark {
  background-color: var(--color-black-pure);
  color: var(--color-text-inverse);
}

.section-alt {
  background-color: var(--color-bg-alt);
}

/* --- Section Header --- */
.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-serif);
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-dark .section-title {
  color: var(--color-text-inverse);
}

.section-dark .section-desc {
  color: color-mix(in srgb, var(--color-white) 55%, transparent);
}

.section-dark .section-title span {
  color: color-mix(in srgb, var(--color-white) 40%, transparent);
}

.section-desc {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

.section-desc strong {
  color: var(--color-primary);
  font-weight: var(--font-bold);
}

.section-desc-highlight {
  display: inline-block;
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(196, 30, 58, 0.3);
}

.btn-outline {
  border: 1.5px solid var(--color-gray-400);
  color: var(--color-gray-600);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--color-black);
  color: var(--color-black);
}

.btn-outline-white {
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  color: rgba(255, 255, 255, 0.8);
  background: transparent;
}

.btn-outline-white:hover {
  border-color: var(--color-white);
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: var(--z-modal);
  transition: all var(--duration-normal) var(--ease-out);
}

/* Transparent header — used on homepage hero & inner page banners */
.header--transparent {
  background-color: transparent;
  backdrop-filter: none;
  box-shadow: none;
}

.header--transparent .header-logo {
  color: var(--color-white);
}

.header--transparent .header-nav a {
  color: rgba(255, 255, 255, 0.8);
}

.header--transparent .header-nav a:hover {
  color: var(--color-white);
}

.header--transparent .menu-toggle span {
  background-color: var(--color-white);
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-white);
  transition: color var(--duration-normal);
}

.header.scrolled .header-logo {
  color: var(--color-text);
}

.header-logo img {
  height: 40px;
  width: auto;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.header-nav a {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--duration-fast);
  position: relative;
}

.header-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--duration-normal) var(--ease-out);
}

.header-nav a:hover {
  color: var(--color-white);
}

.header-nav a:hover::after {
  width: 100%;
}

.header.scrolled .header-nav a {
  color: var(--color-text-secondary);
}

.header.scrolled .header-nav a:hover {
  color: var(--color-primary);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-white);
  transition: all var(--duration-normal);
}

.header.scrolled .menu-toggle span {
  background-color: var(--color-text);
}

/* --- Navigation Dropdown --- */
.nav-dropdown-wrap {
  position: relative;
}

.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.nav-dropdown-trigger svg {
  transition: transform var(--duration-fast) var(--ease-out);
}

.nav-dropdown-wrap:hover .nav-dropdown-trigger svg {
  transform: rotate(180deg);
}

.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  background: rgba(26, 26, 26, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  padding: var(--space-2) 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-fast) var(--ease-out), visibility var(--duration-fast), transform var(--duration-fast) var(--ease-out);
  z-index: var(--z-dropdown);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.nav-dropdown-wrap:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* Scrolled state — white dropdown */
.header.scrolled .nav-dropdown {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  border: 1px solid var(--color-border);
}

.nav-dropdown-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: all var(--duration-fast);
  white-space: nowrap;
}

.nav-dropdown-item:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.08);
}

.header.scrolled .nav-dropdown-item {
  color: var(--color-text-secondary);
}

.header.scrolled .nav-dropdown-item:hover {
  color: var(--color-primary);
  background: rgba(196, 30, 58, 0.06);
}

/* "敬请期待" tag */
.nav-dropdown-item--soon {
  cursor: default;
  color: rgba(255, 255, 255, 0.4) !important; /* override nav link color */;
}

.nav-dropdown-item--soon:hover {
  background: none;
  color: rgba(255, 255, 255, 0.4) !important; /* override nav link color */;
}

.header.scrolled .nav-dropdown-item--soon {
  color: var(--color-text-muted) !important ; /* override parent color */;
}

.header.scrolled .nav-dropdown-item--soon:hover {
  background: none;
  color: var(--color-text-muted) !important ; /* override parent color */;
}

.nav-soon-tag {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 1px 6px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.header.scrolled .nav-soon-tag {
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

/* --- Footer --- */
.footer {
  background-color: var(--color-black);
  color: rgba(255, 255, 255, 0.6);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-brand-col {
  max-width: 280px;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer-logo {
  height: 36px;
  width: auto;
}

.footer-brand-desc {
  font-size: var(--text-sm);
  line-height: 1.8;
  margin-bottom: var(--space-4);
}

.footer-subtitle {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.3);
  letter-spacing: 0.05em;
}

.footer-heading {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.footer-links li {
  margin-bottom: var(--space-2);
}

.footer-links a {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--duration-fast);
}

.footer-links a:hover {
  color: var(--color-primary);
}

/* Footer 联系方式 label/value 排版 */
.footer-contacts li {
  display: flex;
  gap: var(--space-2);
  align-items: baseline;
}

.footer-contacts .fc-label {
  flex-shrink: 0;
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
  min-width: 2.5em;
}

.footer-contacts .fc-value {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  min-width: 0;
}

.footer-contacts .fc-value a {
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--duration-fast);
}

.footer-contacts .fc-value a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-xs);
  flex-wrap: wrap;
  gap: var(--space-2);
}

.footer-company {
  color: rgba(255, 255, 255, 0.4);
}

.footer-icp a {
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.footer-icp a:hover {
  color: rgba(255, 255, 255, 0.7);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--color-black);
  overflow: hidden;
}

/* Hero Video Background */
.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background-color: var(--color-black); /* Black bars blend into dark hero */
  z-index: var(--z-base);
  transition: opacity 0.8s var(--ease-out);
}

/* When video ends, fade it out */
.hero-video--ended {
  opacity: 0;
}

/* Ken Burns animation — used by .hero-kv-img */
@keyframes heroKenBurns {
  0% {
    object-position: center center;
    transform: scale(1);
  }
  100% {
    object-position: center 30%;
    transform: scale(1.15);
  }
}

/* Light sweep — diagonal shine on KV background (idle/ended only) */
.hero--idle .hero-kv-bg::after,
.hero--ended .hero-kv-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: var(--z-above);
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255, 255, 255, 0.03) 45%,
    rgba(255, 255, 255, 0.07) 50%,
    rgba(255, 255, 255, 0.03) 55%,
    transparent 60%
  );
  animation: heroLightSweep 8s ease-in-out infinite;
  pointer-events: none;
}

@keyframes heroLightSweep {
  0%, 100% { transform: translateX(-100%) skewX(-15deg); }
  50% { transform: translateX(100%) skewX(-15deg); }
}

/* Film grain overlay — subtle noise on KV background (idle/ended only) */
.hero--idle .hero-kv-bg::before,
.hero--ended .hero-kv-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: var(--z-above);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  background-repeat: repeat;
  opacity: 0.5;
  mix-blend-mode: overlay;
  pointer-events: none;
  animation: heroGrainShift 0.5s steps(4) infinite;
}

@keyframes heroGrainShift {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-2px, 1px); }
  50% { transform: translate(1px, -1px); }
  75% { transform: translate(-1px, -2px); }
  100% { transform: translate(0, 0); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,26,0.82) 0%, rgba(26,26,26,0.55) 50%, rgba(196,30,58,0.12) 100%);
  z-index: var(--z-above);
}

/* Hero Video Controls */
.hero-video-controls {
  position: absolute;
  bottom: var(--space-8);
  right: var(--space-8);
  display: flex;
  gap: var(--space-3);
  z-index: var(--z-local-3);
}

.hero-ctrl-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  background-color: rgba(0, 0, 0, 0.4);
  color: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hero-ctrl-btn:hover {
  background-color: rgba(196, 30, 58, 0.6);
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--color-text-inverse);
  transform: scale(1.1);
}

.hero-ctrl-btn:active {
  transform: scale(0.95);
}

/* Volume slider control */
.hero-volume-control {
  display: flex;
  align-items: center;
  gap: 0;
  position: relative;
}

.hero-volume-btn {
  flex-shrink: 0;
}

.hero-volume-slider-wrap {
  width: 0;
  overflow: hidden;
  opacity: 0;
  transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
}

.hero-volume-control:hover .hero-volume-slider-wrap,
.hero-volume-control.active .hero-volume-slider-wrap {
  width: 100px;
  opacity: 1;
  margin-left: 6px;
}

.hero-volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100px;
  height: 4px;
  border-radius: 2px;
  background: linear-gradient(to right, rgba(196, 30, 58, 0.9) 0%, rgba(196, 30, 58, 0.9) var(--slider-fill, 100%), rgba(255, 255, 255, 0.2) var(--slider-fill, 100%), rgba(255, 255, 255, 0.2) 100%);
  outline: none;
  cursor: pointer;
  transition: height 0.15s ease;
}

.hero-volume-slider:hover {
  height: 6px;
}

.hero-volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-white);
  border: 2px solid rgba(196, 30, 58, 0.9);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.3);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.hero-volume-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 10px rgba(196, 30, 58, 0.5);
}

.hero-volume-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-white);
  border: 2px solid rgba(196, 30, 58, 0.9);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.3);
}

.hero-volume-slider::-moz-range-track {
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.2);
}

.hero-volume-slider::-moz-range-progress {
  height: 4px;
  border-radius: 2px;
  background: rgba(196, 30, 58, 0.9);
}

/* Hero Video Arrows */
.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: var(--z-local-3);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.25);
  background-color: rgba(0, 0, 0, 0.3);
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hero-arrow:hover {
  background-color: rgba(196, 30, 58, 0.6);
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--color-text-inverse);
  transform: translateY(-50%) scale(1.1);
}

.hero-arrow:active {
  transform: translateY(-50%) scale(0.95);
}

.hero-arrow--prev {
  left: var(--space-6);
}

.hero-arrow--next {
  right: var(--space-6);
}

/* Hero Video Dots */
.hero-dots {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: var(--space-3);
  z-index: var(--z-local-3);
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  background-color: transparent;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  padding: 0;
}

.hero-dot:hover {
  border-color: rgba(255, 255, 255, 0.7);
  background-color: rgba(255, 255, 255, 0.2);
}

.hero-dot.active {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  transform: scale(1.2);
}

/* Skip button — slightly wider with gap for icon spacing */
.hero-skip-btn svg {
  margin-left: 1px;
}

/* Hero entrance animation */
.hero-content {
  position: relative;
  z-index: var(--z-local-2);
  max-width: 720px;
  opacity: 0;
  transform: translateY(40px);
  animation: heroEntrance 0.9s var(--ease-out) 0.3s forwards;
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

@keyframes heroEntrance {
  0% {
    opacity: 0;
    transform: translateY(40px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Hero State Machine (idle / playing / paused / ended) --- */

/* KV background layer (idle + ended) */
.hero-kv-bg {
  position: absolute;
  inset: 0;
  z-index: var(--z-base);
  overflow: hidden;
}

.hero-kv-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroKenBurns 20s ease-in-out infinite alternate;
}

/* Video playing → hide content */
.hero--playing .hero-content {
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  animation: none;
}

/* Idle state: KV visible, big play button shown, controls/arrows/dots hidden */
.hero--idle .hero-kv-bg,
.hero--ended .hero-kv-bg {
  opacity: 1;
  transition: opacity 0.6s var(--ease-out);
}

.hero--idle .hero-video,
.hero--ended .hero-video {
  opacity: 0;
}

.hero--idle .hero-video-controls,
.hero--ended .hero-video-controls {
  opacity: 0;
  pointer-events: none;
}

.hero--idle .hero-arrow,
.hero--ended .hero-arrow,
.hero--idle .hero-dots,
.hero--ended .hero-dots {
  opacity: 0;
  pointer-events: none;
}

/* Idle: big play button visible */
.hero--idle .hero-play-big,
.hero--ended .hero-play-big {
  display: flex;
}

/* Playing / paused: KV hidden, big play button hidden */
.hero--playing .hero-kv-bg,
.hero--paused .hero-kv-bg {
  opacity: 0;
  transition: opacity 0.6s var(--ease-out);
}

.hero--playing .hero-play-big,
.hero--paused .hero-play-big {
  display: none;
}

/* Playing: controls/arrows/dots visible */
.hero--playing .hero-video-controls,
.hero--paused .hero-video-controls {
  opacity: 1;
  pointer-events: auto;
}

.hero--playing .hero-arrow,
.hero--paused .hero-arrow,
.hero--playing .hero-dots,
.hero--paused .hero-dots {
  opacity: 1;
  pointer-events: auto;
}

/* Paused: content visible over frozen video frame */
.hero--paused .hero-content {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  animation: none;
}

.hero-slogan {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  text-transform: uppercase;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: var(--text-hero);
  font-weight: var(--font-bold);
  line-height: 1.15;
  color: var(--color-white);
  margin-bottom: var(--space-6);
  position: relative;
}

/* Red underline sweep on title */
.hero-title::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-primary);
  animation: lineSweep 0.8s var(--ease-out) 1s forwards;
}

@keyframes lineSweep {
  0% { width: 0; }
  100% { width: 100%; }
}

.hero-title .highlight {
  color: var(--color-primary);
  text-shadow: 0 0 20px rgba(196, 30, 58, 0.4);
  animation: glowPulse 2.5s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { text-shadow: 0 0 20px rgba(196, 30, 58, 0.3); }
  50% { text-shadow: 0 0 40px rgba(196, 30, 58, 0.6), 0 0 80px rgba(196, 30, 58, 0.2); }
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--space-8);
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
}

/* Staggered button entrance */
.hero-buttons .btn {
  opacity: 0;
  transform: translateY(16px);
  animation: btnEntrance 0.6s var(--ease-out) forwards;
}

.hero-buttons .btn:nth-child(1) {
  animation-delay: 1.2s;
}

.hero-buttons .btn:nth-child(2) {
  animation-delay: 1.4s;
}

@keyframes btnEntrance {
  0% {
    opacity: 0;
    transform: translateY(16px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-scroll-hint {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.3);
  font-size: var(--text-xs);
  animation: float 2s ease-in-out infinite;
  z-index: var(--z-local-2);
}

.hero-scroll-hint .line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.3), transparent);
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Business Section --- */
.business-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

/* 5-card layout: top 3, bottom 2 centered */
.business-grid-5 {
  grid-template-columns: repeat(3, 1fr);
  justify-items: center;
}

.business-grid-5 .business-card {
  width: 100%;
}

/* Make the 4th card start at column 1 of the 2nd row, offset to center */
@media (min-width: 769px) {
  .business-grid-5 {
    justify-items: stretch;
  }
  .business-grid-5 .business-card:nth-child(4) {
    grid-column: 1 / 2;
    justify-self: end;
    max-width: calc(100% - var(--space-3));
  }
  .business-grid-5 .business-card:nth-child(5) {
    grid-column: 2 / 3;
    justify-self: start;
    max-width: calc(100% - var(--space-3));
  }
}

/* 6-card layout: 3x2 grid */
.business-grid-6 {
  grid-template-columns: repeat(3, 1fr);
  justify-items: stretch;
}

.business-grid-6 .business-card {
  width: 100%;
}

.business-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

/* Left accent bar */
.business-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--color-primary);
  opacity: 0;
  transition: opacity var(--duration-normal);
}

/* Top gradient light bar */
.business-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-15));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.business-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.business-card:hover::before {
  opacity: 1;
}

.business-card:hover::after {
  transform: scaleX(1);
}

.business-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-primary);
  transition: all var(--duration-normal) var(--ease-out);
}

.business-card:hover .business-icon {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: rotate(-5deg) scale(1.05);
}

.business-card-title {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-3);
}

.business-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.business-card-link {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  transition: gap var(--duration-normal);
}

.business-card:hover .business-card-link {
  gap: var(--space-2);
}

/* --- Advantages Section --- */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.advantage-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

/* Left accent bar */
.advantage-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--color-primary);
  transform: scaleY(0);
  transition: transform 0.4s var(--ease-out);
}

.advantage-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-15);
}

.advantage-card:hover::before {
  transform: scaleY(1);
}

.advantage-number {
  font-family: var(--font-mono);
  font-size: 3.5rem;
  font-weight: var(--font-bold);
  color: var(--color-primary);
  opacity: 0.12;
  margin-bottom: var(--space-4);
  line-height: 1;
  transition: all var(--duration-normal) var(--ease-out);
}

.advantage-card:hover .advantage-number {
  opacity: 1;
}

.advantage-title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-3);
}

.advantage-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* --- News Section --- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.news-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
  cursor: pointer;
}

/* Red left accent bar on hover */
.news-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--color-primary);
  transform: scaleY(0);
  transition: transform var(--duration-normal) var(--ease-out);
}

.news-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-15);
}

.news-card:hover::before {
  transform: scaleY(1);
}

.news-date {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-3);
}

.news-title {
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-2);
  line-height: 1.5;
}

.news-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --- News Listing Page --- */
.news-listing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

.news-listing-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-8);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: all var(--duration-normal) var(--ease-out);
}

.news-listing-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background-color: var(--color-primary);
  transform: scaleY(0);
  transition: transform var(--duration-normal) var(--ease-out);
  z-index: var(--z-above);
}

.news-listing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-15);
}

.news-listing-card:hover::before {
  transform: scaleY(1);
}

.news-listing-thumb {
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--color-black);
}

.news-listing-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-normal) var(--ease-out);
}

.news-listing-card:hover .news-listing-thumb img {
  transform: scale(1.05);
}

.news-listing-body {
  padding: var(--space-6) var(--space-6) var(--space-6) 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.news-listing-date {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-3);
}

.news-listing-title {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-3);
  line-height: 1.4;
}

.news-listing-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.news-listing-link {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: var(--font-medium);
  transition: opacity var(--duration-fast);
}

.news-listing-card:hover .news-listing-link {
  opacity: 0.8;
}

/* --- News Filter Bar --- */
.news-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.news-filter-btn {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  font-family: var(--font-mono);
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  user-select: none;
  position: relative;
  overflow: hidden;
}

.news-filter-btn:hover {
  color: var(--color-text);
  border-color: var(--color-text-secondary);
}

.news-filter-btn.active {
  color: var(--color-text-inverse);
  background: var(--cat-color, var(--color-primary));
  border-color: var(--cat-color, var(--color-primary));
}

.news-filter-btn.active:hover {
  opacity: 0.9;
  border-color: var(--cat-color, var(--color-primary));
}

/* --- News Category Tag --- */
.news-listing-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.news-listing-cat {
  display: inline-block;
  padding: 2px var(--space-2);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  font-weight: var(--font-medium);
  color: var(--cat-color, var(--color-primary));
  background: color-mix(in srgb, var(--cat-color, var(--color-primary)) 12%, transparent);
  border-radius: var(--radius-sm);
  line-height: 1.6;
}

/* --- News Empty State --- */
.news-empty {
  text-align: center;
  padding: var(--space-16) 0;
  color: var(--color-text-secondary);
  font-size: var(--text-base);
}

/* --- News Load More --- */
.news-loadmore {
  text-align: center;
  margin-top: var(--space-8);
}

/* --- News Detail Page --- */
.news-detail-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  margin-bottom: var(--space-8);
  transition: color var(--duration-fast);
}

.news-detail-back:hover {
  color: var(--color-primary);
}

.news-detail-article {
  max-width: 760px;
  margin: 0 auto;
}

.news-detail-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.news-detail-date {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: var(--font-medium);
}

.news-detail-tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background-color: color-mix(in srgb, var(--cat-color, var(--color-primary)) 12%, transparent);
  color: var(--cat-color, var(--color-primary));
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-sm);
}

.news-detail-body {
  font-size: var(--text-base);
  color: var(--color-text);
  line-height: 2;
}

.news-detail-body p {
  margin-bottom: var(--space-6);
}

.news-detail-body h3 {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  position: relative;
  padding-left: var(--space-4);
}

.news-detail-body h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

.news-detail-body img {
  width: 100%;
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
}

.news-detail-body blockquote {
  border-left: 3px solid var(--color-primary);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-6) 0;
  background-color: var(--color-primary-light);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

.news-detail-body ul {
  margin: var(--space-4) 0 var(--space-6) var(--space-4);
}

.news-detail-body li {
  margin-bottom: var(--space-2);
  line-height: 1.8;
}

.news-detail-body li::marker {
  color: var(--color-primary);
}

/* News detail navigation (prev / next) */
.news-detail-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.news-detail-nav-item {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-out);
}

.news-detail-nav-item:hover {
  border-color: var(--color-primary-15);
  box-shadow: var(--shadow-md);
}

.news-detail-nav-item--next {
  text-align: right;
}

.news-detail-nav-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-1);
}

.news-detail-nav-title {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-text);
  transition: color var(--duration-fast);
}

.news-detail-nav-item:hover .news-detail-nav-title {
  color: var(--color-primary);
}

/* --- Stats Section --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-8);
  text-align: center;
}

.stats-grid > div {
  position: relative;
}

/* Red dashed divider between stat items */
.stats-grid > div + div::before {
  content: '';
  position: absolute;
  left: 0;
  top: 15%;
  bottom: 15%;
  width: 1px;
  background: repeating-linear-gradient(
    to bottom,
    var(--color-primary) 0,
    var(--color-primary) 6px,
    transparent 6px,
    transparent 12px
  );
  opacity: 0.4;
}

.stat-number {
  font-family: var(--font-mono);
  font-size: var(--text-6xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
  text-shadow: 0 0 30px rgba(196, 30, 58, 0.4);
}

.stat-number--bounced {
  animation: statBounce 0.5s var(--ease-out);
}

@keyframes statBounce {
  0% { transform: scale(1); }
  40% { transform: scale(1.15); }
  70% { transform: scale(0.95); }
  100% { transform: scale(1); }
}

.stat-label {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
}

/* Education page: 4-column stats */
.stats-grid-4 {
  grid-template-columns: repeat(4, 1fr);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Partners Section --- */
.partners-section {
  position: relative;
  background-color: var(--color-black);
  color: var(--color-white);
  background-image: url('images/banner-partners.webp');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

.partners-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  pointer-events: none;
}

.partners-section .container {
  position: relative;
  z-index: var(--z-above);
}

/* When marquee is active, allow the grid to span full width */
.partners-section .container.marquee-container {
  max-width: 100%;
  padding-left: 0;
  padding-right: 0;
  overflow: hidden;
}

.partners-section .container.marquee-container > .reveal {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.partners-section .section-label {
  color: var(--color-primary);
}

.partners-section .section-title {
  color: var(--color-white);
}

.partners-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-8);
}

/* Marquee layout — applied via JS when .marquee-ready is added */
.partners-grid.marquee-ready {
  display: block;
  overflow: hidden;
  width: 100%;
  position: relative;
}

.partners-grid.marquee-ready:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-track {
  display: flex;
  flex-wrap: nowrap;
  gap: var(--space-6);
  width: max-content;
  /* Animation is set via JS with calculated duration */
  animation: partnerMarquee 50s linear infinite;
}

@keyframes partnerMarquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(var(--marquee-offset, -50%)); }
}

.marquee-track .partner-item {
  flex-shrink: 0;
}

.partner-item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5) var(--space-8);
  background-color: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: rgba(255, 255, 255, 0.7);
  min-width: 140px;
  letter-spacing: 0.05em;
  transition: all var(--duration-normal);
}

.partner-item:hover {
  background-color: rgba(196, 30, 58, 0.2);
  border-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(196, 30, 58, 0.3);
}

/* --- CTA Section --- */
.cta-section {
  background-color: var(--color-primary);
  text-align: center;
  padding: var(--space-20) 0;
  position: relative;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
}

.cta-title {
  font-family: var(--font-serif);
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  text-align: center;
}

.cta-desc {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-8);
  text-align: center;
}

/* Pulse animation for CTA button */
.cta-section .btn {
  animation: ctaPulse 2s ease-in-out infinite;
}

@keyframes ctaPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(255, 255, 255, 0); }
}

/* --- Page Hero (Inner pages) --- */
.page-hero {
  position: relative;
  padding-top: calc(var(--header-height) + var(--space-16));
  padding-bottom: var(--space-16);
  background-color: var(--color-black);
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  color: var(--color-text-inverse);
  overflow: hidden;
  will-change: background-position;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.35) 50%, rgba(0, 0, 0, 0.6) 100%),
    linear-gradient(135deg, rgba(196, 30, 58, 0.12) 0%, transparent 60%);
  pointer-events: none;
  z-index: var(--z-above);
}

.page-hero .container {
  position: relative;
  z-index: var(--z-local-2);
}

.page-hero .section-label {
  display: block;
  margin-bottom: var(--space-4);
  opacity: 0;
  transform: translateY(20px);
  animation: pageHeroFadeIn 0.6s var(--ease-out) 0.2s forwards;
}

.page-hero-title {
  font-family: var(--font-serif);
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  line-height: 1.2;
  color: var(--color-white);
  margin-bottom: var(--space-4);
  opacity: 0;
  transform: translateY(25px);
  animation: pageHeroFadeIn 0.7s var(--ease-out) 0.35s forwards;
}

.page-hero-desc {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.8;
  max-width: 600px;
  opacity: 0;
  transform: translateY(20px);
  animation: pageHeroFadeIn 0.6s var(--ease-out) 0.5s forwards;
}

@keyframes pageHeroFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- About Intro --- */
.about-intro {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-16);
  align-items: start;
}

.about-intro-text .section-title {
  margin-bottom: var(--space-8);
}

.about-intro-visual {
  position: relative;
}

.about-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding-top: var(--space-8);
}

.about-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-out);
}

.about-tag:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

/* --- Team Grid --- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
}

.team-card {
  display: flex;
  gap: var(--space-6);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: all var(--duration-normal) var(--ease-out);
}

.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.team-avatar {
  flex-shrink: 0;
  width: 130px;
  height: 130px;
  border-radius: 50%;
  overflow: hidden;
  background-color: var(--color-bg-alt);
  border: 3px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-out);
}

.team-card:hover .team-avatar {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  transform: scale(1.05);
}

.avatar-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

/* Avatar placeholder (use when photo is unavailable/low-res) */
.avatar-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: var(--font-bold);
  color: var(--color-white);
  user-select: none;
}

.team-avatar .avatar-placeholder {
  font-size: var(--text-4xl);
  background: linear-gradient(135deg, var(--color-black-soft) 0%, var(--color-primary-dark) 100%);
}

.director-avatar .avatar-placeholder {
  font-size: var(--text-4xl);
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}

.team-info {
  flex: 1;
  min-width: 0;
}

.team-role {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.05em;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.team-name {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.team-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* --- Directors Grid --- */
.directors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.director-card {
  text-align: center;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  transition: all var(--duration-normal) var(--ease-out);
}

.director-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.director-avatar {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto var(--space-6);
  background-color: var(--color-bg-alt);
  border: 3px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-out);
}

.director-card:hover .director-avatar {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  transform: scale(1.05);
}

.director-name {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-3);
}

.director-works {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* --- Subsidiary Block Layout --- */
.subsidiary-block {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: var(--space-12);
  align-items: center;
  margin-bottom: var(--space-16);
}

.subsidiary-block:last-child {
  margin-bottom: 0;
}

.subsidiary-block-info {
  display: flex;
  flex-direction: column;
}

.subsidiary-logo {
  width: 100%;
  max-width: 280px;
  height: auto;
  margin-bottom: var(--space-6);
  border-radius: var(--radius-md);
}

.subsidiary-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.subsidiary-name {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.subsidiary-slogan {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
  letter-spacing: 0.05em;
}

.subsidiary-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-6);
}

.subsidiary-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* --- Subsidiary Gallery --- */
.subsidiary-block-gallery {
  display: flex;
  align-items: center;
  justify-content: center;
}

.subsidiary-gallery {
  display: grid;
  gap: var(--space-4);
  width: 100%;
}

/* 3列2行网格，干净大气 */
.subsidiary-gallery--3x2 {
  grid-template-columns: repeat(3, 1fr);
}

.gallery-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-out);
  aspect-ratio: 16 / 9;
  cursor: pointer;
  position: relative;
}

/* 正方形/人像比例 — 用于艺人照片 */
.gallery-item--portrait {
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-md);
}

.gallery-item::after {
  content: '🔍';
  position: absolute;
  bottom: var(--space-2);
  right: var(--space-2);
  font-size: var(--text-xs);
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease-out);
  pointer-events: none;
  background: rgba(0,0,0,0.5);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  line-height: 1;
}

.gallery-item:hover::after {
  opacity: 1;
}

.gallery-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.gallery-item:hover img {
  transform: scale(1.03);
}

/* Responsive */
@media (max-width: 1024px) {
  .subsidiary-block {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .subsidiary-gallery--3x2 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 640px) {
  .subsidiary-gallery--3x2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .subsidiary-logo {
    max-width: 200px;
  }
}

/* ========== About 页 Lightbox ========== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-max);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.92);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  z-index: var(--z-above);
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.92);
  transition: transform 0.3s ease;
}

.lightbox.active .lightbox-content {
  transform: scale(1);
}

.lightbox-content img {
  max-width: 90vw;
  max-height: 78vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  user-select: none;
  -webkit-user-drag: none;
}

.lightbox-counter {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.4);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  z-index: var(--z-local-2);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--color-white);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: var(--text-lg);
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: scale(1.1);
}

.lightbox-close {
  top: var(--space-6);
  right: var(--space-6);
}

.lightbox-prev {
  left: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-prev:hover {
  transform: translateY(-50%) scale(1.1);
}

.lightbox-next {
  right: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next:hover {
  transform: translateY(-50%) scale(1.1);
}

@media (max-width: 768px) {
  .lightbox-prev,
  .lightbox-next {
    width: 40px;
    height: 40px;
    top: auto;
    bottom: var(--space-6);
    transform: none;
  }

  .lightbox-prev {
    left: calc(50% - 52px);
  }

  .lightbox-prev:hover {
    transform: scale(1.1);
  }

  .lightbox-next {
    right: calc(50% - 52px);
  }

  .lightbox-next:hover {
    transform: scale(1.1);
  }

  .lightbox-close {
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
  }

  .lightbox-content img {
    max-height: 70vh;
  }
}

/* --- Timeline --- */
.timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 16.67%;
  width: 66.67%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), rgba(196, 30, 58, 0.2));
}

.timeline-item {
  position: relative;
  text-align: center;
  padding-top: var(--space-6);
}

.timeline-year {
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-3);
}

.timeline-item:not(:first-child) .timeline-year {
  opacity: 0.6;
}

.timeline-label {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.timeline-list {
  text-align: left;
  max-width: 280px;
  margin: 0 auto;
}

.timeline-list li {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
  padding-left: var(--space-4);
  position: relative;
  margin-bottom: var(--space-2);
}

.timeline-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

/* --- Service Detail (Services page) --- */
.service-detail {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-16);
  align-items: start;
}

.service-detail-reverse {
  grid-template-columns: 2fr 3fr;
}

.service-detail-reverse .service-detail-content {
  order: 2;
}

.service-detail-reverse .service-detail-visual {
  order: 1;
}

.service-brand {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.service-desc {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-8);
}

.service-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.service-feature-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.service-feature-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.service-feature-item h4 {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-1);
}

.service-feature-item p {
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.service-detail-visual {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  position: relative;
}

/* Service image showcase */
.service-image-showcase {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.service-image-showcase img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--duration-slow) var(--ease-out);
}

.service-image-showcase:hover img {
  transform: scale(1.03);
}

/* Gradient overlay on image bottom for stats */
.service-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-6) var(--space-5);
  background: linear-gradient(to top, rgba(26, 26, 26, 0.9) 0%, rgba(26, 26, 26, 0.5) 60%, transparent 100%);
  display: flex;
  gap: var(--space-6);
  align-items: flex-end;
}

.service-image-stat {
  display: flex;
  flex-direction: column;
}

.service-image-stat-number {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-white);
  line-height: 1;
}

.service-image-stat-label {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.6);
  margin-top: var(--space-1);
}

/* Badge on image top-right corner */
.service-image-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: var(--color-primary);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  letter-spacing: 0.05em;
}

.service-visual-card {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  transition: all var(--duration-normal) var(--ease-out);
}

.service-visual-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.section-alt .service-visual-card {
  background-color: var(--color-white);
}

.service-visual-number {
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.service-visual-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* --- Education Page Styles --- */
.page-hero-edu {
  background-color: var(--color-edu-dark);
}

.page-hero-edu::before {
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.55) 0%, rgba(42, 10, 16, 0.4) 50%, rgba(0, 0, 0, 0.6) 100%),
    linear-gradient(135deg, rgba(196, 30, 58, 0.18) 0%, transparent 60%);
}

/* Edu Loop */
.edu-loop {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.edu-loop-item {
  flex: 1;
  max-width: 240px;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-out);
}

.edu-loop-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.edu-loop-item:hover .edu-loop-icon {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.08);
}

.edu-loop-number {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  opacity: 0.3;
  line-height: 1;
  margin-bottom: var(--space-3);
}

.edu-loop-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin: 0 auto var(--space-4);
}

.edu-loop-title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-2);
}

.edu-loop-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.edu-loop-arrow {
  flex-shrink: 0;
  color: var(--color-primary);
  opacity: 0.4;
}

/* Edu Courses */
.edu-courses {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  align-items: stretch;
}

.edu-course-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 0;
  position: relative;
  transition: all var(--duration-normal) var(--ease-out);
  display: flex;
  flex-direction: column;
  overflow: visible;
}

.edu-course-card > .edu-course-header,
.edu-course-card > .edu-course-list {
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.edu-course-card > .edu-course-header {
  padding-top: var(--space-6);
}

.edu-course-card .edu-course-list {
  flex: 1;
  padding-bottom: var(--space-4);
}

.edu-course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.edu-course-card-featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-md);
}

/* 精品卡 — 黑底高级感 */
.edu-course-card-premium {
  background-color: var(--color-black);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), var(--shadow-md);
}

.edu-course-card-premium .edu-course-title {
  color: var(--color-white);
}

.edu-course-card-premium .edu-course-list li {
  color: var(--color-gray-400);
}

.edu-course-card-premium .edu-course-list li::before {
  background-color: var(--color-primary);
}

.edu-course-card-premium .edu-course-meta {
  background-color: var(--color-black-soft);
  border-top-color: rgba(196, 30, 58, 0.2);
  color: var(--color-gray-400);
}

.edu-course-card-premium .edu-meta-item em {
  color: var(--color-primary);
}

.edu-course-card-premium .edu-course-icon {
  background-color: rgba(196, 30, 58, 0.15);
}

.edu-course-card-premium .edu-course-tag {
  color: var(--color-primary);
  background-color: rgba(196, 30, 58, 0.15);
}

.edu-course-card-premium:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 20px rgba(196, 30, 58, 0.2), var(--shadow-lg);
}

/* 入门卡 — 轻量虚线边框 */
.edu-course-card-starter {
  border-style: dashed;
  border-color: var(--color-gray-300);
}

.edu-course-card-starter:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
  border-style: solid;
}

.edu-course-badge {
  position: absolute;
  top: -12px;
  right: var(--space-6);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
}

/* Badge 差异化配色 */
.edu-course-badge-hot {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.edu-course-badge-premium {
  background-color: var(--color-black);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.edu-course-badge-starter {
  background-color: var(--color-white);
  color: var(--color-gray-500);
  border: 1px solid var(--color-gray-300);
}

.edu-course-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.edu-course-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: all var(--duration-normal) var(--ease-out);
}

.edu-course-card:hover .edu-course-icon {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.06);
}

.edu-course-title {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
}

.edu-course-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  color: var(--color-primary);
  background-color: rgba(196, 30, 58, 0.08);
  padding: 2px 8px;
  border-radius: 3px;
  margin-top: 4px;
  line-height: 1.4;
}

.edu-course-list {
  margin-bottom: var(--space-6);
}

.edu-course-list li {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
  padding-left: var(--space-4);
  position: relative;
  margin-bottom: var(--space-2);
}

.edu-course-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.edu-course-meta {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  background-color: var(--color-bg-alt);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-secondary);
  flex-wrap: nowrap;
  white-space: nowrap;
  justify-content: space-between;
}

.edu-meta-item em {
  font-style: normal;
  font-size: 11px;
  color: var(--color-primary);
  margin-right: 2px;
  font-weight: 500;
}

/* Edu Advantages */
.edu-advantages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.edu-advantage-item {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.edu-advantage-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.edu-advantage-item:hover .edu-advantage-number {
  opacity: 0.2;
}

.edu-advantage-number {
  font-family: var(--font-mono);
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  opacity: 0.1;
  line-height: 1;
  margin-bottom: var(--space-3);
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  user-select: none;
}

.edu-advantage-item h3 {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-2);
}

.edu-advantage-item p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* 讲师团网格纹背景 */
.section-lecturers {
  background-color: var(--color-bg);
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* Edu Lecturers — 青年讲师团 */
.edu-lecturers {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

/* 总教头 — 顶层单独展示 */
.edu-lecturer-leader {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-8);
}

.edu-lecturer-card-leader {
  width: 220px;
  padding: var(--space-5) var(--space-4) var(--space-5);
  border: 2px solid var(--color-primary);
  position: relative;
}

.edu-lecturer-card-leader .edu-lecturer-photo {
  aspect-ratio: 3 / 4;
}

.edu-lecturer-card-leader .edu-lecturer-name {
  font-size: var(--text-base);
}

.edu-lecturer-card-leader .edu-lecturer-title {
  font-size: var(--text-xs);
}

.edu-lecturer-leader-badge {
  display: inline-block;
  margin-bottom: var(--space-2);
  padding: 2px var(--space-3);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.625rem;
  font-weight: var(--font-bold);
  letter-spacing: 0.1em;
  border-radius: 2px;
  text-transform: uppercase;
}

.edu-lecturer-card {
  text-align: center;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-3) var(--space-4);
  transition: all var(--duration-normal) var(--ease-out);
}

.edu-lecturer-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.edu-lecturer-photo {
  width: 100%;
  aspect-ratio: 2 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: var(--space-3);
  background-color: var(--color-bg-alt);
}

.edu-lecturer-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

/* Placeholder for lecturer photo (CSS-only, no image file needed) */
.edu-lecturer-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, var(--color-black-soft) 0%, var(--color-primary-dark) 100%);
  color: rgba(255, 255, 255, 0.25);
}

.edu-lecturer-card:hover .edu-lecturer-placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.edu-lecturer-name {
  font-family: var(--font-serif);
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-1);
  line-height: 1.3;
}

.edu-lecturer-title {
  font-size: 0.6875rem;
  color: var(--color-primary);
  font-weight: var(--font-medium);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.edu-lecturer-desc {
  font-size: 0.6875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Group photo — 大合照 */
.edu-lecturers-group {
  margin-top: var(--space-8);
}

.edu-lecturers-group-photo {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg-alt);
  transition: all var(--duration-normal) var(--ease-out);
}

.edu-lecturers-group-photo:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.edu-lecturers-group-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.edu-lecturers-group-caption {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  letter-spacing: 0.02em;
}

.edu-lecturers-group-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  background: linear-gradient(135deg, var(--color-black-soft) 0%, var(--color-primary-dark) 100%);
  color: rgba(255, 255, 255, 0.25);
}

.edu-lecturers-group-photo:hover .edu-lecturers-group-placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.edu-lecturers-group-label {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.3);
  text-transform: uppercase;
}

/* Lecturer Detail Modal — 讲师详情弹窗 */
.lecturer-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-preloader);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lecturer-modal.active {
  opacity: 1;
  visibility: visible;
}

.lecturer-modal-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
}

.lecturer-modal-content {
  position: relative;
  z-index: var(--z-above);
  width: 90%;
  max-width: 720px;
  max-height: 90vh;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transform: translateY(24px) scale(0.97);
  transition: transform 0.3s ease;
}

.lecturer-modal.active .lecturer-modal-content {
  transform: translateY(0) scale(1);
}

.lecturer-modal-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: var(--z-local-2);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  color: var(--color-text-inverse);
  cursor: pointer;
  transition: background 0.2s ease;
}

.lecturer-modal-close:hover {
  background: rgba(0, 0, 0, 0.75);
}

.lecturer-modal-body {
  display: flex;
  overflow-y: auto;
  max-height: 90vh;
}

.lecturer-modal-photo {
  flex: 0 0 260px;
  aspect-ratio: 2 / 3;
  overflow: hidden;
  background-color: var(--color-bg-alt);
}

.lecturer-modal-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.lecturer-modal-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, var(--color-black-soft) 0%, var(--color-primary-dark) 100%);
  color: rgba(255, 255, 255, 0.25);
}

.lecturer-modal-info {
  flex: 1;
  padding: var(--space-8) var(--space-6);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.lecturer-modal-name {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.lecturer-modal-title {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: var(--font-medium);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-5);
}

.lecturer-modal-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* Lecturer card clickable hint */
.edu-lecturer-card {
  cursor: pointer;
}

.edu-lecturer-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
  background: linear-gradient(180deg, transparent 50%, rgba(196, 30, 58, 0.06) 100%);
  pointer-events: none;
}

.edu-lecturer-card:hover::after {
  opacity: 1;
}

.edu-lecturer-card {
  position: relative;
}

/* Edu Gallery — 教培风采照片墙 */
.edu-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.edu-gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background-color: var(--color-bg-alt);
  transition: transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out);
}

.edu-gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.edu-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--duration-slow) var(--ease-out);
}

.edu-gallery-item:hover img {
  transform: scale(1.05);
}

/* --- Portfolio Page Styles --- */
.ip-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.ip-showcase-reverse {
  direction: rtl;
}

.ip-showcase-reverse > * {
  direction: ltr;
}

.ip-showcase-visual {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.ip-showcase-visual img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  border-radius: var(--radius-lg);
  display: block;
  transition: transform 0.5s var(--ease-out);
}

.ip-showcase-visual:hover img {
  transform: scale(1.03);
}

/* Shimmer overlay on hover */
.ip-showcase-visual::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    105deg,
    transparent 30%,
    rgba(255, 255, 255, 0.12) 50%,
    transparent 70%
  );
  transition: left 0.6s ease;
  pointer-events: none;
  z-index: var(--z-above);
}

.ip-showcase-visual:hover::after {
  left: 120%;
}

/* Dual-image layout for IP showcase — 玄镜双生 */
.ip-showcase-visual--dual {
  position: relative;
  aspect-ratio: auto;
  overflow: visible;
}

.xuanjing-gallery {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  background: var(--color-black);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.ip-showcase-visual--dual .xuanjing-gallery-img {
  max-width: 48%;
  width: auto;
  height: auto;
  aspect-ratio: auto;
  display: block;
  border-radius: var(--radius-sm);
  object-fit: contain;
  transition: transform var(--duration-normal) var(--ease-out);
}

.ip-showcase-visual--dual .xuanjing-gallery-img:hover {
  transform: scale(1.03);
}

/* Full-image display without cropping — 虚拟偶像Alanya */
.ip-showcase-visual--full {
  aspect-ratio: auto;
  overflow: visible;
}

.ip-showcase-visual--full .ip-img-contain {
  width: auto;
  height: auto;
  max-width: 100%;
  aspect-ratio: auto;
  object-fit: contain;
  border-radius: var(--radius-lg);
  display: block;
}

/* --- Portfolio页 IP Banner 卡片 --- */
.ip-banner-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.ip-banner-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3 / 4;
  cursor: pointer;
  text-decoration: none;
  color: var(--color-white);
  display: block;
}

.ip-banner-img {
  position: absolute;
  inset: 0;
}

.ip-banner-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}

.ip-banner-card:hover .ip-banner-img img {
  transform: scale(1.06);
}

.ip-banner-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-6);
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0) 30%,
    rgba(0, 0, 0, 0.75) 100%
  );
  transition: background var(--duration-normal) var(--ease-out);
}

.ip-banner-card:hover .ip-banner-overlay {
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.1) 20%,
    rgba(0, 0, 0, 0.85) 100%
  );
}

.ip-banner-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-2);
}

.ip-banner-title {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-white);
  margin-bottom: var(--space-3);
  line-height: 1.2;
}

.ip-banner-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  transition: all var(--duration-normal) var(--ease-out);
}

.ip-banner-card:hover .ip-banner-cta {
  gap: var(--space-3);
}

/* 敬请期待 遮罩 */
.ip-banner-card--coming {
  cursor: default;
}

.ip-banner-soon {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: rgba(255, 255, 255, 0.5);
  border: 1px dashed rgba(255, 255, 255, 0.3);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  width: fit-content;
}

.ip-banner-card--coming::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.25);
  transition: background var(--duration-normal) var(--ease-out);
}

.ip-banner-card--coming:hover::after {
  background: rgba(0, 0, 0, 0.35);
}

.ip-banner-card--coming .ip-banner-overlay {
  z-index: var(--z-above);
}

.ip-placeholder-img {
  width: 100%;
  aspect-ratio: 16/10;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.ip-placeholder-text {
  text-align: center;
}

.ip-placeholder-cn {
  display: block;
  font-family: var(--font-serif);
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-2);
}

.ip-placeholder-en {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
}

/* IP Showcase — 编号装饰数字 */
.ip-showcase-content {
  position: relative;
  padding-left: var(--space-8);
}

.ip-showcase-content::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--color-primary), rgba(196, 30, 58, 0.15));
  border-radius: 2px;
}

.ip-showcase-number {
  font-family: var(--font-mono);
  font-size: var(--text-6xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  opacity: 0;
  line-height: 1;
  position: absolute;
  top: -8px;
  right: -10px;
  user-select: none;
  pointer-events: none;
  transition: opacity 0.8s var(--ease-out);
  transition-delay: 0.3s;
}

.reveal.visible .ip-showcase-number {
  opacity: 0.12;
}

.ip-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.ip-meta-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.ip-meta-item svg {
  color: var(--color-primary);
}

.ip-desc {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-6);
}

.ip-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* IP Tags — 统一pill样式 */
.ip-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-out);
  letter-spacing: 0.02em;
}

.ip-tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  transform: translateY(-1px);
}

/* 首个tag — 品牌红底 */
.ip-tag--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.ip-tag--primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(196, 30, 58, 0.3);
}

/* IP Music Features */
.ip-music-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.ip-music-feature {
  position: relative;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.ip-music-feature:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* Shimmer sweep on hover */
.ip-music-feature::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    105deg,
    transparent 30%,
    rgba(196, 30, 58, 0.08) 50%,
    transparent 70%
  );
  transition: left 0.6s ease;
  pointer-events: none;
  z-index: var(--z-base);
}

.ip-music-feature:hover::after {
  left: 120%;
}

.ip-music-feature:hover .ip-music-feature-icon {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.08);
  animation: icon-pulse 0.6s ease;
}

@keyframes icon-pulse {
  0% { transform: scale(1.08); }
  50% { transform: scale(1.18); }
  100% { transform: scale(1.08); }
}

.ip-music-feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: var(--z-above);
  color: var(--color-primary);
  margin: 0 auto var(--space-4);
  transition: all var(--duration-normal) var(--ease-out);
}

.ip-music-feature h4 {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-white);
  margin-bottom: var(--space-2);
  position: relative;
  z-index: var(--z-above);
}

.ip-music-feature p {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.6;
  position: relative;
  z-index: var(--z-above);
}

/* IP Showcase — 白色section网格纹理 */
.section-ip-grid {
  background-color: var(--color-bg);
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
}

/* --- Cases Page Styles --- */
.cases-filter-bar {
  position: relative;
  z-index: var(--z-dropdown);
  padding: var(--space-5) 0;
  background-color: var(--color-bg);
  transition: box-shadow var(--duration-normal) var(--ease-out),
              background-color var(--duration-normal) var(--ease-out);
}

.cases-filter-bar.is-sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-modal);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
  padding: var(--space-3) 0;
}

/* 占位元素：sticky激活时撑住原始高度，防止内容跳动 */
.cases-filter-placeholder {
  display: none;
}

.cases-filter-placeholder.is-active {
  display: block;
}

.cases-filter {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.cases-filter-btn {
  padding: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
}

.cases-filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.cases-filter-btn.active {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.case-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.case-thumb {
  width: 100%;
  aspect-ratio: 16/10;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Dual-image gallery layout for case thumbnails — 玄镜双生 */
.case-thumb-gallery {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  background: var(--color-black);
  padding: var(--space-3);
  aspect-ratio: auto;
  overflow: visible;
}

.case-thumb-gallery-img {
  max-width: 48%;
  max-height: 500px;
  width: auto;
  height: auto;
  aspect-ratio: auto;
  display: block;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

/* Featured case card — 玄镜双生跨列突出 */
.case-card--featured {
  grid-column: span 2;
}

.case-card--featured .case-info {
  text-align: center;
  padding: var(--space-6) var(--space-8);
}

.case-card--featured .case-category {
  display: inline-block;
}

.case-card--featured .case-title {
  font-size: var(--text-2xl);
}

.case-card--featured .case-desc {
  max-width: 600px;
  margin: 0 auto;
}

.case-thumb-overlay {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: var(--z-local-2);
}

.case-thumb-label {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background-color: rgba(0, 0, 0, 0.6);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
}

.case-thumb-text {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.case-info {
  padding: var(--space-5) var(--space-6);
}

.case-category {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-2);
}

.case-title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-2);
  line-height: 1.4;
}

.case-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============================================================
   Music Player — 案例展示页音乐播放器
   ============================================================ */

/* 封面滚动画廊 — 33首横滚展示 */
.cover-gallery {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  padding: var(--space-4) var(--space-2) var(--space-6);
  scroll-snap-type: none;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) rgba(255,255,255,0.06);
}

/* 自定义滚动条（Webkit） */
.cover-gallery::-webkit-scrollbar {
  height: 4px;
}
.cover-gallery::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.04);
  border-radius: 2px;
}
.cover-gallery::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 2px;
}

/* 单个封面卡片 */
.cover-gallery-item {
  flex-shrink: 0;
  width: 160px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  scroll-snap-align: start;
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.35s ease;
  border: 2px solid transparent;
}

.cover-gallery-item:hover {
  transform: scale(1.12);
  z-index: var(--z-local-10);
  box-shadow: 0 8px 32px rgba(196, 30, 58, 0.3);
  border-color: var(--color-primary);
}

.cover-gallery-item.is-playing {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary), 0 4px 20px rgba(196, 30, 58, 0.25);
}

/* 封面图 */
.cover-gallery-img {
  width: 100%;
  aspect-ratio: 1 / 1;
  background-size: cover;
  background-position: center;
  display: block;
  transition: filter 0.3s ease;
}

.cover-gallery-item:hover .cover-gallery-img {
  filter: brightness(0.65);
}

.cover-gallery-item.is-playing .cover-gallery-img {
  filter: brightness(0.55);
}

/* 歌名overlay */
.cover-gallery-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-3);
  opacity: 0;
  transition: opacity 0.3s ease;
  background: linear-gradient(
    to top,
    rgba(0,0,0,0.85) 0%,
    rgba(0,0,0,0.3) 50%,
    transparent 100%
  );
}

.cover-gallery-item:hover .cover-gallery-overlay,
.cover-gallery-item.is-playing .cover-gallery-overlay {
  opacity: 1;
}

.cover-gallery-title {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  font-weight: var(--font-bold);
  color: var(--color-white);
  line-height: 1.3;
  margin-bottom: 4px;
  text-shadow: 0 1px 4px rgba(0,0,0,0.6);
}

.cover-gallery-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.04em;
}

/* 播放图标 — 中央大图标 */
.cover-gallery-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.7);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(196, 30, 58, 0.9);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.25s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  border: none;
  color: white;
  cursor: pointer;
  z-index: var(--z-local-3);
  padding: 0;
}

.cover-gallery-item:hover .cover-gallery-play {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.cover-gallery-item.is-playing .cover-gallery-play {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  background: rgba(196, 30, 58, 1);
}

/* 播放中脉冲动画 */
.cover-gallery-item.is-playing::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-primary);
  opacity: 0;
  animation: coverPulse 2s ease-in-out infinite;
  z-index: var(--z-neg);
}

@keyframes coverPulse {
  0%, 100% { opacity: 0; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(1.02); }
}

/* 首尾留白 — 让第一张和最后一张能居中对齐 */
.cover-gallery::before,
.cover-gallery::after {
  content: '';
  flex-shrink: 0;
  width: 0;
}

/* 封面画廊响应式 */
@media (max-width: 1024px) {
  .cover-gallery-item {
    width: 140px;
  }
}

@media (max-width: 768px) {
  .cover-gallery-item {
    width: 120px;
  }
  .cover-gallery-title {
    font-size: 0.75rem;
  }
  .cover-gallery-play {
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .cover-gallery-item {
    width: 105px;
  }
  .cover-gallery {
    gap: var(--space-3);
  }
}

/* ===== 学员MV作品展示 ===== */
/* MV横向滚动容器 — 与封面画廊统一风格 */
.mv-grid {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  padding: var(--space-4) var(--space-2) var(--space-6);
  scroll-snap-type: none;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) rgba(255,255,255,0.06);
}

/* MV滚动条样式（与封面画廊一致） */
.mv-grid::-webkit-scrollbar {
  height: 4px;
}
.mv-grid::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.04);
  border-radius: 2px;
}
.mv-grid::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 2px;
}

.mv-card {
  flex-shrink: 0;
  width: 200px;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  background: var(--color-black-card);
  aspect-ratio: 9 / 16;
  border: 1px solid var(--color-border);
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.35s ease,
              border-color 0.3s ease;
}

.mv-card:hover {
  transform: scale(1.06);
  box-shadow: 0 12px 40px rgba(196, 30, 58, 0.3);
  border-color: var(--color-primary);
  z-index: var(--z-local-10);
}

/* 海报图 */
.mv-card-poster-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* 暗色遮罩 */
.mv-card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: var(--z-local-2);
  background: linear-gradient(to top, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.1) 50%, rgba(0,0,0,0.2) 100%);
  transition: background 0.3s;
  pointer-events: none;
}

.mv-card:hover::before {
  background: linear-gradient(to top, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.05) 50%, rgba(0,0,0,0.15) 100%);
}

/* 底部信息栏 */
.mv-card-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-8) var(--space-3) var(--space-3);
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.5) 50%, transparent 100%);
  z-index: var(--z-local-3);
}

.mv-card-title {
  font-family: var(--font-serif);
  font-size: 0.875rem;
  font-weight: var(--font-bold);
  color: var(--color-white);
  line-height: 1.3;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mv-card-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.04em;
}

/* 中央播放按钮 */
.mv-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(1);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(196, 30, 58, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: none;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: var(--z-local-4);
  opacity: 0.7;
  transition: opacity 0.25s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.25s;
  padding: 0;
}

.mv-card:hover .mv-play-btn {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.12);
  background: rgba(196, 30, 58, 1);
}

/* MV响应式 */
@media (max-width: 1024px) {
  .mv-card { width: 180px; }
}

@media (max-width: 768px) {
  .mv-card { width: 160px; }
  .mv-card-title { font-size: 0.75rem; }
  .mv-play-btn { width: 44px; height: 44px; }
}

@media (max-width: 480px) {
  .mv-card { width: 140px; }
  .mv-card-info { padding: var(--space-6) var(--space-2) var(--space-2); }
  .mv-play-btn { width: 40px; height: 40px; }
}

/* ============================
   Concert / Festival Scroll Cards
   ============================ */

/* Horizontal scroll container — same pattern as .mv-grid */
.concert-grid {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  padding: var(--space-2) 0 var(--space-4);
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) transparent;
  -webkit-overflow-scrolling: touch;
}

.concert-grid::-webkit-scrollbar { height: 4px; }
.concert-grid::-webkit-scrollbar-track { background: transparent; }
.concert-grid::-webkit-scrollbar-thumb { background: var(--color-primary); border-radius: 2px; }

/* Card — portrait 3:4 ratio to fit event posters */
.concert-card {
  flex-shrink: 0;
  width: 240px;
  aspect-ratio: 3 / 4;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--color-black-card);
  cursor: pointer;
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
  border: 1px solid transparent;
}

.concert-card:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 40px rgba(196, 30, 58, 0.25);
  border-color: var(--color-primary);
  z-index: var(--z-local-10);
}

.concert-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.concert-card:hover img {
  transform: scale(1.06);
}

/* Bottom gradient overlay */
.concert-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.3) 40%, transparent 70%);
  z-index: var(--z-above);
  pointer-events: none;
  transition: background var(--duration-normal) var(--ease-out);
}

.concert-card:hover::before {
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.4) 50%, transparent 80%);
}

/* Card info (title + tag at bottom) */
.concert-card-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-6) var(--space-3) var(--space-3);
  z-index: var(--z-local-3);
  background: linear-gradient(to top, rgba(0,0,0,0.6), transparent);
}

.concert-card-title {
  font-family: var(--font-serif);
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: var(--color-text-inverse);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.concert-card-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 2px;
}

/* Expand button — same icon in center (eye icon for "view details") */
.concert-card-expand {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  background: rgba(196, 30, 58, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: var(--z-local-4);
  opacity: 0;
  transition: all var(--duration-normal) var(--ease-out);
}

.concert-card:hover .concert-card-expand {
  opacity: 1;
}

.concert-card-expand:hover {
  background: var(--color-primary);
  transform: translate(-50%, -50%) scale(1.12);
}

/* --- Concert Detail Modal (pure poster view) --- */
.concert-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-preloader);
  display: none;
  align-items: center;
  justify-content: center;
}

.concert-modal.is-open {
  display: flex;
}

.concert-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(12px);
}

/* The poster image — centered, as large as possible */
.concert-modal-img {
  position: relative;
  z-index: var(--z-above);
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

.concert-modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-local-5);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  color: var(--color-text-inverse);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast) var(--ease-out);
}

.concert-modal-close:hover {
  background: var(--color-primary);
  transform: scale(1.1);
}

/* Concert card responsive */
@media (max-width: 1024px) {
  .concert-card { width: 210px; }
}

@media (max-width: 768px) {
  .concert-card { width: 180px; }
  .concert-card-expand { width: 44px; height: 44px; }
}

@media (max-width: 480px) {
  .concert-card { width: 160px; }
  .concert-card-expand { width: 40px; height: 40px; }
}

/* --- Video Portfolio Styles --- */
/* ===== 视频案例 — 封面拼贴 + 展开列表 ===== */

/* 封面拼贴 — 3×2网格 */
.video-collage {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-10);
}

.video-collage-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  cursor: pointer;
  background: var(--color-bg);
}

.video-collage-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.video-collage-item:hover img {
  transform: scale(1.08);
}

.video-collage-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0);
  color: var(--color-text-inverse);
  opacity: 0;
  transition: all var(--duration-normal) var(--ease-out);
}

.video-collage-item:hover .video-collage-overlay {
  background: rgba(196, 30, 58, 0.3);
  opacity: 1;
}

/* 数据亮点 */
.video-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-12);
  margin-bottom: var(--space-8);
  text-align: center;
}

.video-stat-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.video-stat-num {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  font-family: var(--font-mono);
  color: var(--color-primary);
  line-height: 1;
}

.video-stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: var(--font-medium);
}

.video-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
  align-self: center;
}

/* CTA按钮 */
.video-cta {
  text-align: center;
  margin-bottom: var(--space-6);
}

.video-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  font-family: var(--font-sans);
  color: var(--color-text-inverse);
  background-color: var(--color-primary);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
}

.video-cta-btn:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(196, 30, 58, 0.35);
}

.video-cta-arrow {
  transition: transform var(--duration-normal) var(--ease-out);
}

/* 展开列表面板 */
.video-list-panel {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  margin-bottom: var(--space-8);
}

/* 列表内Tab */
.video-list-tabs {
  display: flex;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-4) 0;
  border-bottom: 1px solid var(--color-border);
}

.video-list-tab {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  font-family: var(--font-sans);
  color: var(--color-text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.video-list-tab:hover {
  color: var(--color-text);
}

.video-list-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* 列表项 */
.video-list-grid {
  padding: var(--space-3) 0;
}

.video-list-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out);
}

.video-list-item:hover {
  background: rgba(196, 30, 58, 0.06);
}

.video-list-num {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  min-width: 24px;
}

.video-list-title {
  flex: 1;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.video-list-tag {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(196, 30, 58, 0.08);
  white-space: nowrap;
}

.video-list-ratio {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-text-muted);
  min-width: 32px;
  text-align: center;
}

.video-list-play {
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.video-list-item:hover .video-list-play {
  color: var(--color-primary);
}

/* 视频案例弹窗 — 复用MV弹窗风格 */
.video-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: var(--z-modal-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-normal) var(--ease-out);
}

.video-modal.is-open {
  opacity: 1;
  visibility: visible;
}

.video-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.video-modal-content {
  position: relative;
  z-index: var(--z-above);
  max-width: 900px;
  width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  overflow: auto;
  background: var(--color-black);
}

.video-modal-close {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: var(--z-local-5);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  color: var(--color-text-inverse);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast) var(--ease-out);
}

.video-modal-close:hover {
  background: var(--color-primary);
  transform: scale(1.1);
}

.video-modal-video-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--color-black);
}

.video-modal-video-wrap video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* 竖版视频弹窗 — 9:16适配 */
.video-modal-content--portrait {
  max-width: 450px;
  max-height: 92vh;
}
.video-modal-video-wrap--portrait {
  aspect-ratio: 9 / 16;
  /* 竖版视频限制最大高度，给info区留空间 */
  max-height: calc(92vh - 60px);
}
.video-modal-video-wrap--portrait video {
  object-fit: cover;
}

/* 竖版视频弹窗：info区紧凑排列 */
.video-modal-content--portrait .video-modal-info {
  padding: var(--space-3) var(--space-4);
  flex-shrink: 0;
}
.video-modal-content--portrait .video-modal-title {
  font-size: var(--text-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.video-modal-content--portrait .video-modal-tag {
  flex-shrink: 0;
}

.video-modal-info {
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.video-modal-title {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-text-inverse);
}

.video-modal-tag {
  font-size: var(--text-xs);
  color: var(--color-primary);
  font-weight: var(--font-medium);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-primary);
}

/* Video responsive */
@media (max-width: 1024px) {
  .video-collage { grid-template-columns: repeat(3, 1fr); }
  .video-stats { gap: var(--space-8); }
}

@media (max-width: 768px) {
  .video-collage { grid-template-columns: repeat(2, 1fr); }
  .video-stat-num { font-size: var(--text-2xl); }
  .video-stat-label { font-size: var(--text-xs); }
  .video-cta-btn { padding: var(--space-3) var(--space-6); font-size: var(--text-sm); }
  .video-modal-content--portrait { max-width: 360px; }
  .video-list-item { padding: var(--space-2) var(--space-4); }
  .video-list-ratio { display: none; }
  .video-stat-divider { height: 30px; }
}

@media (max-width: 480px) {
  .video-collage { grid-template-columns: repeat(2, 1fr); gap: var(--space-1); }
  .video-stats { gap: var(--space-4); flex-wrap: wrap; }
  .video-stat-num { font-size: var(--text-xl); }
  .video-stat-divider { display: none; }
  .video-cta-btn { width: 100%; justify-content: center; }
  .video-list-tab { padding: var(--space-1) var(--space-3); font-size: var(--text-xs); }
  .video-modal-content--portrait { max-width: 85vw; }
}

/* 播放器卡片 */
.music-player-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
}

.music-player-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.music-player-card.playing {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary), 0 8px 24px rgba(196, 30, 58, 0.15);
}

/* 渐变封面 */
.music-cover-gradient {
  aspect-ratio: 1 / 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* 封面中心装饰：音乐图标 */
.music-cover-gradient::after {
  content: '';
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.25);
  position: relative;
  opacity: 0.6;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.music-player-card:hover .music-cover-gradient::after {
  opacity: 1;
}

.music-player-card.playing .music-cover-gradient::after {
  border-color: rgba(255, 255, 255, 0.6);
  animation: musicPulse 1.5s ease-in-out infinite;
}

@keyframes musicPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.15); opacity: 1; }
}

/* --- 精选大卡片增强 --- */
.music-player-card--featured .music-track-info {
  padding: var(--space-4) var(--space-4) var(--space-5);
}

.music-player-card--featured .music-track-info h4 {
  font-size: var(--text-lg);
  white-space: normal;
  overflow: visible;
  text-overflow: unset;
}

/* 封面图（后续替换渐变占位） */
.music-cover-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.music-cover-img ~ .music-play-btn {
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

/* 曲目信息 */
.music-track-info {
  padding: var(--space-3) var(--space-4) var(--space-4);
}

.music-track-info h4 {
  font-family: var(--font-serif);
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  line-height: 1.3;
  margin-bottom: var(--space-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.music-track-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.music-track-lang {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: var(--font-medium);
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  padding: 1px 6px;
  border-radius: 3px;
}

/* 播放/暂停按钮 — 浮于封面右下角 */
.music-play-btn {
  position: absolute;
  bottom: var(--space-3);
  right: var(--space-3);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  z-index: var(--z-local-2);
  opacity: 0;
}

.music-player-card:hover .music-play-btn {
  opacity: 1;
}

.music-player-card.playing .music-play-btn {
  opacity: 1;
  background: var(--color-primary);
}

.music-play-btn:hover {
  transform: scale(1.1);
}

.music-play-btn:active {
  transform: scale(0.95);
}

/* --- 完整曲目列表 --- */
.music-tracklist {
  margin-top: var(--space-10);
  text-align: center;
}

.music-tracklist-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
}

.music-tracklist-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.music-tracklist-toggle svg {
  transition: transform var(--duration-normal) var(--ease-out);
}

.music-tracklist-content {
  margin-top: var(--space-8);
}

.music-tracklist-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2) var(--space-6);
  text-align: left;
}

.music-tracklist-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: all var(--duration-fast) var(--ease-out);
}

.music-tracklist-item:hover {
  background-color: var(--color-primary-light);
  color: var(--color-text);
}

.music-tracklist-item .ip-tag {
  margin-left: auto;
  flex-shrink: 0;
}

/* 可点击播放的曲目 */
.music-tracklist-item.has-audio {
  cursor: pointer;
}

.music-tracklist-item.has-audio:hover {
  background-color: rgba(196, 30, 58, 0.12);
  color: var(--color-primary);
}

.music-tracklist-item.has-audio:hover .music-tracklist-num {
  opacity: 0.8;
}

/* 无音频的曲目（灰显） */
.music-tracklist-item.no-audio {
  opacity: 0.4;
  cursor: default;
}

.music-tracklist-item.no-audio:hover {
  background-color: transparent;
  color: var(--color-text-secondary);
}

.music-tracklist-num {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  opacity: 0.4;
  min-width: 20px;
}

/* --- 音乐播放器响应式（保留tracklist响应式） --- */
@media (max-width: 768px) {
  .music-tracklist-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .music-tracklist-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================
   Bottom Persistent Player Bar
   ============================ */
.bottom-player {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-toast);
  background: var(--color-black-deep);
  border-top: 1px solid var(--color-primary);
  color: var(--color-white);
  transform: translateY(100%);
  visibility: hidden;
  transition: transform 0.4s var(--ease-out), visibility 0s 0.4s;
}

.bottom-player.active {
  transform: translateY(0);
  visibility: visible;
  transition: transform 0.4s var(--ease-out), visibility 0s 0s;
}

/* 进度条 */
.bp-progress {
  position: absolute;
  top: -3px;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  cursor: pointer;
  transition: height 0.15s, top 0.15s;
  z-index: var(--z-above);
}

.bp-progress:hover {
  height: 6px;
  top: -6px;
}

.bp-progress-fill {
  height: 100%;
  background: var(--color-primary);
  width: 0%;
  transition: width 0.1s linear;
  border-radius: 0 2px 2px 0;
}

/* 主控制栏 */
.bp-main {
  display: flex;
  align-items: center;
  height: 72px;
  padding: 0 var(--space-6);
  gap: var(--space-4);
}

/* 左区：封面 + 信息 */
.bp-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
  flex: 1;
}

.bp-cover {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  background-size: cover;
  background-position: center;
}

.bp-lyrics-cover {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  background-size: cover;
  background-position: center;
  margin-right: 10px;
}

.bp-info {
  min-width: 0;
}

.bp-title {
  font-weight: var(--font-bold);
  font-size: var(--text-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

.bp-meta {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.5);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 200px;
}

/* 中区：控制按钮 */
.bp-center {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.bp-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  padding: 0;
}

.bp-btn:hover {
  color: var(--color-primary);
  transform: scale(1.1);
}

.bp-btn-play {
  width: 42px;
  height: 42px;
  background: var(--color-primary);
}

.bp-btn-play:hover {
  background: var(--color-primary-bright);
  color: var(--color-white);
  transform: scale(1.08);
}

.bp-btn-play:active {
  transform: scale(0.95);
}

/* 右区：时间 + 音量 + 歌词 */
.bp-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex: 1;
  justify-content: flex-end;
}

.bp-time {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.5);
  white-space: nowrap;
  min-width: 80px;
  text-align: right;
}

/* 音量控制组 */
.bp-volume-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.bp-volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.bp-volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-white);
  cursor: pointer;
  transition: background 0.15s;
}

.bp-volume-slider::-webkit-slider-thumb:hover {
  background: var(--color-primary);
}

.bp-volume-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-white);
  border: none;
  cursor: pointer;
}

.bp-volume-slider::-moz-range-track {
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
}

/* 歌词按钮 */
.bp-btn-lyrics {
  opacity: 0.6;
}

.bp-btn-lyrics:hover {
  opacity: 1;
}

.bp-btn-lyrics.disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

.bp-btn-lyrics.disabled:hover {
  opacity: 0.25;
  transform: none;
  color: var(--color-white);
}

/* 歌词面板 */
.bp-lyrics-panel {
  position: absolute;
  bottom: 100%;
  left: 0;
  right: 0;
  max-height: 0;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
  transition: max-height 0.4s var(--ease-out);
}

/* 有封面背景时：.bp-lyrics-bg做模糊封面底图 */
.bp-lyrics-bg {
  position: absolute;
  inset: -20px;
  background-size: cover;
  background-position: center;
  filter: blur(30px) brightness(0.35);
  pointer-events: none;
  z-index: var(--z-base);
  opacity: 0;
  transition: opacity 0.5s ease;
}

/* 有背景图时显示 */
.bp-lyrics-bg[style*="background-image"] {
  opacity: 1;
}

/* 内容层始终在背景之上 */
.bp-lyrics-panel .bp-lyrics-header,
.bp-lyrics-panel .bp-lyrics-body {
  position: relative;
  z-index: var(--z-above);
}

.bp-lyrics-panel.active {
  max-height: 360px;
}

.bp-lyrics-header {
  display: flex;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  gap: 0;
}
.bp-lyrics-header .bp-lyrics-title {
  flex: 1;
  min-width: 0;
}
.bp-lyrics-header .bp-lyrics-close {
  flex-shrink: 0;
}

.bp-lyrics-title {
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  color: rgba(255, 255, 255, 0.7);
}

.bp-lyrics-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.bp-lyrics-close:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
}

.bp-lyrics-body {
  padding: var(--space-6);
  max-height: 300px;
  overflow-y: auto;
  text-align: center;
  line-height: 2.2;
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.7);
}

.bp-lyrics-body p {
  margin: 0;
  padding: var(--space-1) 0;
  transition: color 0.2s;
}

.bp-lyrics-body p:hover {
  color: var(--color-primary);
}

.bp-lyrics-placeholder {
  color: rgba(255, 255, 255, 0.3) !important ; /* override nav link color */;
  font-style: italic;
}

/* Body 适配 */
body.player-active {
  padding-bottom: 80px;
}

body.player-active #back-to-top {
  bottom: calc(var(--space-8) + 80px);
}

/* --- 底部播放条响应式 --- */
@media (max-width: 1024px) {
  .bp-volume-slider {
    width: 60px;
  }

  .bp-title {
    max-width: 160px;
  }
}

@media (max-width: 768px) {
  .bp-main {
    padding: 0 var(--space-4);
    gap: var(--space-3);
  }

  .bp-volume-group {
    display: none;
  }

  .bp-time {
    display: none;
  }

  .bp-title {
    max-width: 120px;
  }

  .bp-cover {
    width: 40px;
    height: 40px;
  }
}

@media (max-width: 480px) {
  .bp-main {
    height: 64px;
  }

  .bp-meta {
    display: none;
  }

  .bp-title {
    max-width: 90px;
    font-size: var(--text-xs);
  }

  .bp-cover {
    width: 36px;
    height: 36px;
  }

  .bp-btn-play {
    width: 36px;
    height: 36px;
  }

  .bp-btn {
    width: 32px;
    height: 32px;
  }

  .bp-lyrics-body {
    font-size: var(--text-sm);
    padding: var(--space-4);
  }

  body.player-active {
    padding-bottom: 72px;
  }

  body.player-active #back-to-top {
    bottom: calc(var(--space-6) + 72px);
  }
}

/* --- Contact Page Styles --- */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.contact-card {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--duration-normal) var(--ease-out);
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.contact-card-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin: 0 auto var(--space-4);
}

.contact-card-title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-2);
}

.contact-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* Contact Layout */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.contact-info-item {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.contact-info-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.contact-info-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: 2px;
}

.contact-info-value {
  font-weight: var(--font-medium);
  color: var(--color-text);
}

/* Contact Form */
.contact-form-wrap {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(196, 30, 58, 0.1);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: var(--space-10);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-submit {
  width: 100%;
  padding: var(--space-4);
  font-size: var(--text-base);
}

.form-success {
  text-align: center;
  padding: var(--space-8);
}

.form-success h4 {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
}

.form-success p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

/* --- Scroll Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out),
              transition-delay 0s;
}

/* Staggered reveal — delay set via JS (--reveal-delay) */
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
  transition-delay: var(--reveal-delay, 0s);
}

/* Reduced motion: disable all reveal animations */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .reveal.visible {
    transition-delay: 0s;
  }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  :root {
    --text-hero: 3.5rem;
  }

  .business-grid,
  .business-grid-5,
  .business-grid-6 {
    grid-template-columns: repeat(2, 1fr);
  }

  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  /* About page responsive */
  .about-intro {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .about-tag-cloud {
    padding-top: 0;
  }

  .directors-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .directors-grid .director-card:nth-child(3) {
    grid-column: 1 / -1;
    max-width: 400px;
    justify-self: center;
  }

  .timeline::before {
    display: none;
  }

  /* Services page responsive */
  .service-detail,
  .service-detail-reverse {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .service-detail-reverse .service-detail-content {
    order: 0;
  }

  .service-detail-reverse .service-detail-visual {
    order: 0;
  }

  .service-detail-visual {
    flex-direction: row;
  }

  /* Education page responsive */
  .edu-loop {
    flex-wrap: wrap;
    gap: var(--space-4);
  }

  .edu-loop-arrow {
    display: none;
  }

  .edu-loop-item {
    max-width: calc(50% - var(--space-4));
    flex: none;
  }

  .edu-courses {
    grid-template-columns: repeat(2, 1fr);
    max-width: none;
  }

  .edu-advantages {
    grid-template-columns: repeat(2, 1fr);
  }

  .edu-lecturers {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }

  .edu-lecturer-card-leader {
    width: 180px;
  }

  /* Portfolio page responsive */
  .ip-banner-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }

  .ip-showcase {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .ip-showcase-reverse {
    direction: ltr;
  }

  .ip-music-features {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Cases page responsive */
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Contact page responsive */
  .contact-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-layout {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  :root {
    --text-hero: 2.5rem;
    --text-4xl: 1.875rem;
  }

  .section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }

  /* Mobile nav */
  .header-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    padding: var(--space-6);
    flex-direction: column;
    gap: var(--space-4);
    box-shadow: var(--shadow-md);
  }

  .header-nav.active {
    display: flex;
  }

  .header-nav a {
    color: var(--color-text) !important ; /* override transparent header color */;
  }

  .menu-toggle {
    display: flex;
  }

  /* Mobile dropdown — inline expand instead of hover popup */
  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: none;
    backdrop-filter: none;
    box-shadow: none;
    border: none;
    padding: 0;
    padding-left: var(--space-4);
    display: none;
  }

  .nav-dropdown-wrap:hover .nav-dropdown {
    /* Override desktop hover behavior on mobile */
    transform: none;
  }

  .nav-dropdown-wrap.open .nav-dropdown {
    display: block;
  }

  .nav-dropdown-item {
    color: var(--color-text) !important ; /* override transparent header color */;
    padding: var(--space-2) var(--space-3);
  }

  .nav-dropdown-item:hover {
    background: rgba(196, 30, 58, 0.06);
    color: var(--color-primary) !important ; /* override header color state */;
  }

  .nav-dropdown-item--soon {
    color: var(--color-text-muted) !important ; /* override parent color */;
  }

  .nav-dropdown-item--soon:hover {
    background: none;
    color: var(--color-text-muted) !important ; /* override parent color */;
  }

  .nav-soon-tag {
    color: var(--color-text-muted);
    border-color: var(--color-border);
  }

  .business-grid,
  .business-grid-5,
  .business-grid-6 {
    grid-template-columns: 1fr;
  }

  .business-grid-5 .business-card:nth-child(4),
  .business-grid-5 .business-card:nth-child(5) {
    max-width: 100%;
    justify-self: stretch;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .news-grid {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-scroll-hint {
    display: none;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
  }

  /* About page mobile */
  .page-hero {
    padding-top: calc(var(--header-height) + var(--space-8));
    padding-bottom: var(--space-8);
  }

  .page-hero-title {
    font-size: var(--text-3xl);
  }

  .team-grid {
    grid-template-columns: 1fr;
  }

  .team-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .team-avatar {
    width: 110px;
    height: 110px;
  }

  .directors-grid {
    grid-template-columns: 1fr;
  }

  .directors-grid .director-card:nth-child(3) {
    max-width: 100%;
  }

  .timeline {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .timeline-item {
    text-align: left;
    padding-top: 0;
    padding-left: var(--space-8);
    border-left: 2px solid var(--color-primary);
    padding-bottom: var(--space-6);
    position: relative;
  }

  .timeline-item:last-child {
    border-left-color: rgba(196, 30, 58, 0.3);
  }

  .timeline-item::before {
    content: '';
    position: absolute;
    left: -7px;
    top: 4px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-primary);
  }

  .timeline-year {
    font-size: var(--text-2xl);
  }

  .timeline-item:not(:first-child) .timeline-year {
    opacity: 1;
  }

  .timeline-list {
    max-width: 100%;
    margin: 0;
  }

  /* Services page mobile */
  .service-features {
    grid-template-columns: 1fr;
  }

  .service-detail-visual {
    flex-direction: column;
  }

  /* Education page mobile */
  .edu-loop-item {
    max-width: 100%;
  }

  .edu-courses {
    grid-template-columns: 1fr;
  }

  .edu-advantages {
    grid-template-columns: 1fr;
  }

  .edu-advantage-number {
    font-size: var(--text-3xl);
  }

  .edu-lecturers {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .edu-lecturer-card-leader {
    width: 160px;
  }

  /* Lecturer modal mobile */
  .lecturer-modal-body {
    flex-direction: column;
  }

  .lecturer-modal-photo {
    flex: none;
    aspect-ratio: 16 / 9;
    max-height: 280px;
  }

  .lecturer-modal-info {
    padding: var(--space-5) var(--space-5);
  }

  .lecturer-modal-name {
    font-size: var(--text-xl);
  }

  .edu-gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  /* Portfolio page mobile */
  .ip-banner-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .ip-banner-card {
    aspect-ratio: 16 / 9;
  }

  .ip-banner-title {
    font-size: var(--text-xl);
  }

  .ip-showcase-reverse {
    direction: ltr;
  }

  .ip-showcase-content {
    padding-left: var(--space-6);
  }

  .ip-showcase-number {
    font-size: var(--text-4xl);
  }

  .xuanjing-gallery {
    flex-wrap: wrap;
  }

  .ip-meta {
    flex-direction: column;
    gap: var(--space-2);
  }

  .ip-music-features {
    grid-template-columns: 1fr;
  }

  /* Cases page mobile */
  .cases-grid {
    grid-template-columns: 1fr;
  }

  .case-card--featured {
    grid-column: span 1;
  }

  /* News listing mobile */
  .news-listing-card {
    grid-template-columns: 1fr;
  }

  .news-listing-body {
    padding: var(--space-5);
  }

  .news-filter-bar {
    gap: var(--space-1);
    margin-bottom: var(--space-6);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    padding-bottom: var(--space-3);
  }

  .news-filter-btn {
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
    white-space: nowrap;
    flex-shrink: 0;
  }

  .news-detail-nav {
    grid-template-columns: 1fr;
  }

  /* Contact page mobile */
  .contact-cards {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  /* Hero video mobile: hide video, show background image fallback */
  .hero-video {
    display: none;
  }

  .hero-video-controls {
    display: none;
  }

  .hero-arrow {
    display: none;
  }

  .hero-dots {
    display: none;
  }

  .hero {
    background-image: url('images/hero-bg.webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
  }
}

@media (max-width: 480px) {
  :root {
    --text-hero: 2rem;
  }

  .container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .stat-number {
    font-size: var(--text-3xl);
  }

  .edu-gallery {
    grid-template-columns: 1fr;
  }

  .edu-lecturers {
    grid-template-columns: repeat(2, 1fr);
  }

  .edu-lecturer-card-leader {
    width: 140px;
  }

  .edu-lecturers-group-photo {
    aspect-ratio: 4 / 3;
  }

  /* Lecturer modal small mobile */
  .lecturer-modal-content {
    width: 95%;
    max-height: 85vh;
  }

  .lecturer-modal-photo {
    max-height: 220px;
  }

  .lecturer-modal-info {
    padding: var(--space-4);
  }

  .lecturer-modal-name {
    font-size: var(--text-lg);
  }

  .lecturer-modal-desc {
    font-size: var(--text-xs);
    line-height: 1.7;
  }

}

/* --- Back to Top Button --- */
#back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--duration-normal) var(--ease-out);
  z-index: var(--z-modal);
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#back-to-top:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(196, 30, 58, 0.35);
}

#back-to-top:active {
  transform: translateY(-1px);
}

/* --- Unified CTA Button Style --- */
/* Replaces inline style="border-color: rgba(255,255,255,0.6); color: #fff;" on CTA buttons */
.btn-cta-white {
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--color-text-inverse);
}

.btn-cta-white:hover {
  border-color: rgba(255, 255, 255, 0.9);
  background-color: rgba(255, 255, 255, 0.1);
}

/* --- Active Nav Indicator --- */
/* Applied via JS for current page highlighting */
.nav-active {
  color: var(--color-primary) !important ; /* override header color state */;
}

/* --- Anti-flash: ensure transparent header renders correctly before full CSS load --- */
/* This inline-safe rule guarantees white text on first paint for header--transparent */
.header--transparent .header-nav a[href] {
  color: rgba(255, 255, 255, 0.8);
}

.header--transparent .header-logo {
  color: var(--color-text-inverse);
}

.header--transparent .menu-toggle span {
  background-color: var(--color-white);
}

/* --- Preloader Animations --- */
@keyframes preloaderPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes preloaderBar {
  0% { width: 0; margin-left: 0; }
  50% { width: 100%; margin-left: 0; }
  100% { width: 0; margin-left: 100%; }
}

/* --- Scroll Progress Bar --- */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-lighter));
  z-index: var(--z-preloader);
  transition: none;
  pointer-events: none;
}

/* --- Hero Video Progress Bar --- */
.hero-video-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.15);
  cursor: pointer;
  z-index: var(--z-local-10);
  transition: height 0.2s ease;
}

.hero-video-progress:hover {
  height: 6px;
}

.hero-video-progress-fill {
  height: 100%;
  width: 0;
  background: var(--color-primary);
  border-radius: 0 2px 2px 0;
  transition: none;
  pointer-events: none;
}

.hero-video-progress:hover .hero-video-progress-fill {
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-lighter));
}

/* Buffer indicator */
.hero-video-progress-buffer {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: rgba(255, 255, 255, 0.2);
  pointer-events: none;
}

/* ============================================================
   IP Detail Page — 玄镜双生详情页
   ============================================================ */

/* --- Hero: 全屏沉浸 --- */
.ip-detail-hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background-color: var(--color-black);
}

.ip-detail-hero-bg {
  position: absolute;
  inset: 0;
  z-index: var(--z-base);
}

.ip-detail-hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  opacity: 0.45;
}

.ip-detail-hero-bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  background: var(--color-black);
  opacity: 1;
  transition: opacity 0.8s var(--ease-out);
}

/* Video ended → fade out, reveal KV image underneath */
.ip-detail-hero-bg-video.ip-detail-hero-video--ended {
  opacity: 0;
}

/* Video controls */
.ip-detail-hero-controls {
  position: absolute;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-local-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: opacity var(--duration-normal) var(--ease-out);
}

/* Hide controls when video ended (fallback state) */
.ip-detail-hero.ip-detail-hero--fallback .ip-detail-hero-controls {
  opacity: 0;
  pointer-events: none;
}

/* Idle state (initial / after video ends) — same as fallback: content visible, controls hidden */
.ip-detail-hero.ip-detail-hero--idle .ip-detail-hero-controls {
  opacity: 0;
  pointer-events: none;
}

.ip-detail-hero--idle .ip-detail-hero-content {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  transition: opacity 0.8s var(--ease-out) 0.3s, transform 0.8s var(--ease-out) 0.3s;
}

/* Big centered play button (visible in idle / ended states) */
.hero-play-big {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: var(--z-local-10);
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.6);
  background: rgba(196, 30, 58, 0.7);
  color: var(--color-text-inverse);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-left: 4px; /* optical center for play triangle */
  transition: all var(--duration-normal) var(--ease-out);
  box-shadow: 0 0 30px rgba(196, 30, 58, 0.4), 0 4px 20px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.hero-play-big:hover {
  background: rgba(196, 30, 58, 0.9);
  border-color: rgba(255, 255, 255, 0.9);
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 0 40px rgba(196, 30, 58, 0.6), 0 4px 24px rgba(0, 0, 0, 0.5);
}

.hero-play-big:active {
  transform: translate(-50%, -50%) scale(0.95);
}

.hero-play-big:focus-visible {
  outline: 2px solid var(--color-white);
  outline-offset: 4px;
}

.hero-play-big svg {
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.3));
}

/* Video playing → hide hero content (title, stats etc.) */
.ip-detail-hero--playing .ip-detail-hero-content {
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

/* Fallback (after video ends/skip) → show content with animation */
.ip-detail-hero--fallback .ip-detail-hero-content {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  transition: opacity 0.8s var(--ease-out) 0.3s, transform 0.8s var(--ease-out) 0.3s;
}

/* Paused → show content over frozen video frame, keep controls visible */
.ip-detail-hero--paused .ip-detail-hero-content {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  transition: opacity 0.5s var(--ease-out) 0.15s, transform 0.5s var(--ease-out) 0.15s;
}

.ip-detail-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(26, 26, 26, 0.2) 0%,
    rgba(26, 26, 26, 0.5) 50%,
    rgba(26, 26, 26, 0.95) 100%
  );
}

.ip-detail-hero-content {
  position: relative;
  z-index: var(--z-above);
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.ip-detail-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-sm);
  text-decoration: none;
  margin-bottom: var(--space-8);
  transition: color var(--duration-normal) var(--ease-out);
}

.ip-detail-back:hover {
  color: var(--color-white);
}

.ip-detail-hero-text {
  margin-bottom: var(--space-12);
}

.ip-detail-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: var(--font-bold);
  color: var(--color-white);
  line-height: 1.1;
  margin-bottom: var(--space-4);
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.ip-detail-hero-slogan {
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-6);
}

.ip-detail-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

/* Hero tags — 亮色变体 */
.ip-tag--light {
  background-color: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
  border-color: rgba(255, 255, 255, 0.2);
}

.ip-tag--light:hover {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.4);
}

/* Hero stats */
.ip-detail-hero-stats {
  display: flex;
  gap: var(--space-12);
}

.ip-detail-stat {
  text-align: left;
}

.ip-detail-stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.ip-detail-stat-label {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  margin-top: var(--space-1);
}

/* --- 故事概述 --- */
.ip-detail-story {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-12);
  align-items: start;
}

.ip-detail-story-text .section-title {
  margin-bottom: var(--space-6);
}

.ip-detail-story-lead {
  font-size: var(--text-xl);
  font-weight: var(--font-medium);
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: var(--space-6);
  padding-left: var(--space-4);
  border-left: 3px solid var(--color-primary);
}

.ip-detail-story-text p {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-4);
}

.ip-detail-story-visual {
  position: sticky;
  top: 100px;
}

.ip-detail-story-img {
  width: 100%;
  border-radius: var(--radius-lg);
  display: block;
}

.ip-detail-story-caption {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--space-3);
}

/* --- 制作进度时间线 --- */
.ip-detail-timeline {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
  padding-left: var(--space-8);
}

.ip-detail-timeline::before {
  content: '';
  position: absolute;
  left: 11px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: rgba(255, 255, 255, 0.1);
}

.ip-detail-timeline-item {
  position: relative;
  padding-bottom: var(--space-8);
}

.ip-detail-timeline-item:last-child {
  padding-bottom: 0;
}

.ip-detail-timeline-dot {
  position: absolute;
  left: calc(-1 * var(--space-8) + 5px);
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.ip-detail-timeline-item--done .ip-detail-timeline-dot {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.ip-detail-timeline-item--active .ip-detail-timeline-dot {
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(196, 30, 58, 0.3);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 4px rgba(196, 30, 58, 0.3); }
  50% { box-shadow: 0 0 0 8px rgba(196, 30, 58, 0.1); }
}

.ip-detail-timeline-content {
  padding-left: var(--space-2);
}

.ip-detail-timeline-phase {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ip-detail-timeline-content h4 {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-white);
  margin: var(--space-1) 0 var(--space-2);
}

.ip-detail-timeline-content p {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.6;
  margin-bottom: var(--space-2);
}

.ip-detail-timeline-status {
  display: inline-flex;
  padding: 2px var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.5);
}

.ip-detail-timeline-item--done .ip-detail-timeline-status {
  background: rgba(16, 185, 129, 0.15);
  color: var(--color-success);
}

.ip-detail-timeline-item--active .ip-detail-timeline-status {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* --- MV展示 --- */
.ip-detail-mv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.ip-detail-mv-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--duration-normal) var(--ease-out);
}

.ip-detail-mv-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.ip-detail-mv-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.ip-detail-mv-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-normal) var(--ease-out);
}

.ip-detail-mv-card:hover .ip-detail-mv-thumb img {
  transform: scale(1.05);
}

.ip-detail-mv-play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  color: var(--color-white);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.ip-detail-mv-card:hover .ip-detail-mv-play {
  opacity: 1;
}

.ip-detail-mv-info {
  padding: var(--space-4) var(--space-5);
}

.ip-detail-mv-info h4 {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-1);
}

.ip-detail-mv-info p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.ip-detail-mv-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-8);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* --- 角色介绍 --- */
.ip-detail-chars {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.ip-detail-char {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--space-8);
  align-items: start;
}

.ip-detail-char--reverse {
  grid-template-columns: 1fr 320px;
}

.ip-detail-char--reverse .ip-detail-char-portrait {
  order: 2;
}

.ip-detail-char--reverse .ip-detail-char-info {
  order: 1;
}

.ip-detail-char-portrait {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 1 / 1;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.ip-detail-char-portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s var(--ease-out);
}

.ip-detail-char-portrait:hover img {
  transform: scale(1.03);
}

.ip-detail-char-info {
  padding-top: var(--space-4);
}

.ip-detail-char-name {
  font-family: 'Noto Serif SC', serif;
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-white);
  margin: 0 0 var(--space-2);
}

.ip-detail-char-info p {
  font-size: var(--text-base);
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
  margin: var(--space-3) 0 0;
}

/* --- MV特色播放器 --- */
.ip-detail-mv-featured {
  max-width: 900px;
  margin: 0 auto;
}

.ip-detail-mv-player {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-black);
  aspect-ratio: 16 / 9;
}

.ip-detail-mv-player video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.ip-detail-mv-meta {
  padding: var(--space-6) 0 0;
  text-align: center;
}

.ip-detail-mv-meta h3 {
  font-family: 'Noto Serif SC', serif;
  font-size: var(--text-2xl);
  color: var(--color-white);
  margin: 0 0 var(--space-2);
}

.ip-detail-mv-meta p {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  margin: 0 0 var(--space-3);
}

/* --- AIGC制作亮点 --- */
.ip-detail-tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.ip-detail-tech-card {
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: all var(--duration-normal) var(--ease-out);
}

.ip-detail-tech-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.ip-detail-tech-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
  transition: all var(--duration-normal) var(--ease-out);
}

.ip-detail-tech-card:hover .ip-detail-tech-icon {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.08);
}

.ip-detail-tech-card h4 {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-3);
}

.ip-detail-tech-card p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-4);
}

.ip-detail-tech-stat {
  display: inline-flex;
  padding: var(--space-1) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border-radius: var(--radius-full);
}

/* 引用块 */
.ip-detail-quote {
  max-width: 680px;
  margin: var(--space-16) auto 0;
  padding: var(--space-8) var(--space-10);
  border-left: 4px solid var(--color-primary);
  background: linear-gradient(135deg, var(--color-primary-light), transparent);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  font-size: var(--text-xl);
  font-style: italic;
  line-height: 1.8;
  color: var(--color-text);
}

.section-dark .ip-detail-quote {
  background: linear-gradient(135deg, rgba(196, 30, 58, 0.15), rgba(196, 30, 58, 0.03));
  color: rgba(255, 255, 255, 0.85);
}

.section-dark .ip-detail-quote cite {
  color: rgba(255, 255, 255, 0.45);
}

.ip-detail-quote cite {
  display: block;
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  font-style: normal;
  color: var(--color-text-muted);
}

/* --- 视觉画廊 --- */
.ip-detail-gallery {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--space-3);
  /* Fade edges */
  mask-image: linear-gradient(to right, transparent, black 3%, black 97%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 3%, black 97%, transparent);
}

.ip-detail-gallery::-webkit-scrollbar {
  height: 4px;
}

.ip-detail-gallery::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 2px;
}

.ip-detail-gallery::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 2px;
}

.ip-detail-gallery-item {
  position: relative;
  flex-shrink: 0;
  height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}

.ip-detail-gallery-item img {
  width: auto;
  height: 100%;
  display: block;
  transition: transform var(--duration-normal) var(--ease-out);
}

.ip-detail-gallery-item:hover img {
  transform: scale(1.05);
}

.ip-detail-gallery-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-3) var(--space-4);
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--text-sm);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.ip-detail-gallery-item:hover .ip-detail-gallery-label {
  opacity: 1;
}

/* --- 周边展示 --- */
.ip-detail-merch {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--space-3);
  /* Fade edges */
  mask-image: linear-gradient(to right, transparent, black 3%, black 97%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 3%, black 97%, transparent);
}

.ip-detail-merch::-webkit-scrollbar {
  height: 4px;
}

.ip-detail-merch::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 2px;
}

.ip-detail-merch::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 2px;
}

.ip-detail-merch-card {
  position: relative;
  flex-shrink: 0;
  height: 360px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all var(--duration-normal) var(--ease-out);
}

.ip-detail-merch-card img {
  height: 100%;
  width: auto;
  display: block;
  transition: transform 0.6s var(--ease-out);
}

.ip-detail-merch-card:hover img {
  transform: scale(1.05);
}

.ip-detail-merch-card:hover {
  border-color: var(--color-primary);
}

.ip-detail-merch-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.75) 100%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-5);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.ip-detail-merch-card:hover .ip-detail-merch-overlay {
  opacity: 1;
}

.ip-detail-merch-label {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.05em;
}

/* --- Portfolio页 "查看详情" 按钮 --- */
.ip-showcase-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  background: transparent;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--duration-normal) var(--ease-out);
}

.ip-showcase-cta svg {
  transition: transform var(--duration-normal) var(--ease-out);
}

.ip-showcase-cta:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(196, 30, 58, 0.3);
  animation: cta-glow 1.5s ease infinite;
}

.ip-showcase-cta:hover svg {
  transform: translateX(3px);
}

@keyframes cta-glow {
  0%, 100% { box-shadow: 0 4px 12px rgba(196, 30, 58, 0.3); }
  50% { box-shadow: 0 4px 20px rgba(196, 30, 58, 0.5); }
}

/* --- Portfolio页 "敬请期待" --- */
.ip-coming-soon {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-full);
  cursor: default;
}

/* --- IP详情页响应式 --- */
@media (max-width: 1024px) {
  .ip-detail-hero {
    min-height: 70vh;
  }

  .ip-detail-story {
    grid-template-columns: 1fr;
  }

  .ip-detail-story-visual {
    position: static;
    order: -1;
  }

  .ip-detail-tech-grid {
    grid-template-columns: 1fr 1fr;
  }

  .ip-detail-gallery-item {
    height: 260px;
  }

  .ip-detail-char {
    grid-template-columns: 240px 1fr;
  }

  .ip-detail-char--reverse {
    grid-template-columns: 1fr 240px;
  }

  .ip-detail-merch-card {
    height: 300px;
  }
}

@media (max-width: 768px) {
  .ip-detail-hero {
    min-height: 60vh;
  }

  .ip-detail-hero-stats {
    gap: var(--space-8);
  }

  .ip-detail-stat-value {
    font-size: var(--text-2xl);
  }

  .ip-detail-mv-grid {
    grid-template-columns: 1fr;
  }

  .ip-detail-tech-grid {
    grid-template-columns: 1fr;
  }

  .ip-detail-gallery-item {
    height: 220px;
  }

  .ip-detail-char,
  .ip-detail-char--reverse {
    grid-template-columns: 1fr;
  }

  .ip-detail-char--reverse .ip-detail-char-portrait,
  .ip-detail-char--reverse .ip-detail-char-info {
    order: unset;
  }

  .ip-detail-char-portrait {
    max-width: 300px;
    margin: 0 auto;
  }

  .ip-detail-quote {
    padding: var(--space-6);
    font-size: var(--text-lg);
  }

  .hero-play-big {
    width: 64px;
    height: 64px;
  }

  .hero-play-big svg {
    width: 24px;
    height: 24px;
  }

  .ip-detail-merch-card {
    height: 260px;
  }
}

@media (max-width: 480px) {
  .ip-detail-hero-stats {
    flex-wrap: wrap;
    gap: var(--space-6);
  }

  .ip-detail-hero-title {
    font-size: 2rem;
  }

  .hero-play-big {
    width: 56px;
    height: 56px;
  }

  .hero-play-big svg {
    width: 20px;
    height: 20px;
  }

  .ip-detail-merch-card {
    height: 220px;
  }
}

/* ========== 图片弹窗 Lightbox ========== */
.ip-lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-max);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.ip-lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.ip-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
}

.ip-lightbox-content {
  position: relative;
  z-index: var(--z-above);
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: scale(0.92);
  transition: transform 0.3s ease;
}

.ip-lightbox.is-open .ip-lightbox-content {
  transform: scale(1);
}

.ip-lightbox-img {
  max-width: 90vw;
  max-height: 78vh;
  object-fit: contain;
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  user-select: none;
  -webkit-user-drag: none;
}

.ip-lightbox-caption {
  margin-top: var(--space-4);
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 0.05em;
}

.ip-lightbox-counter {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.4);
}

.ip-lightbox-close,
.ip-lightbox-prev,
.ip-lightbox-next {
  position: absolute;
  z-index: var(--z-local-2);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--color-white);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.ip-lightbox-close:hover,
.ip-lightbox-prev:hover,
.ip-lightbox-next:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: scale(1.1);
}

.ip-lightbox-close {
  top: var(--space-6);
  right: var(--space-6);
}

.ip-lightbox-prev {
  left: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
}

.ip-lightbox-prev:hover {
  transform: translateY(-50%) scale(1.1);
}

.ip-lightbox-next {
  right: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
}

.ip-lightbox-next:hover {
  transform: translateY(-50%) scale(1.1);
}

/* Lightbox download HD button */
.ip-lightbox-download {
  position: absolute;
  z-index: var(--z-local-2);
  bottom: var(--space-6);
  right: var(--space-6);
  background: rgba(196, 30, 58, 0.7);
  border: 1px solid rgba(196, 30, 58, 0.8);
  color: var(--color-white);
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: none; /* hidden by default, shown via JS */
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.ip-lightbox-download:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: scale(1.15);
  box-shadow: 0 0 20px rgba(196, 30, 58, 0.5);
}

/* Lightbox responsive */
@media (max-width: 768px) {
  .ip-lightbox-prev,
  .ip-lightbox-next {
    width: 40px;
    height: 40px;
    top: auto;
    bottom: var(--space-6);
    transform: none;
  }

  .ip-lightbox-prev {
    left: calc(50% - 52px);
  }

  .ip-lightbox-prev:hover {
    transform: scale(1.1);
  }

  .ip-lightbox-next {
    right: calc(50% - 52px);
  }

  .ip-lightbox-next:hover {
    transform: scale(1.1);
  }

  .ip-lightbox-close {
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
  }

  .ip-lightbox-download {
    bottom: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
  }

  .ip-lightbox-img {
    max-height: 70vh;
  }
}

/* ========== MV弹窗播放器 ========== */
.mv-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-max);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.mv-modal.is-open {
  opacity: 1;
  visibility: visible;
}

.mv-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.mv-modal-content {
  position: relative;
  z-index: var(--z-above);
  display: flex;
  flex-direction: column;
  align-items: center;
  max-height: 92vh;
  transform: scale(0.92) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.mv-modal.is-open .mv-modal-content {
  transform: scale(1) translateY(0);
}

.mv-modal-close {
  position: absolute;
  top: -48px;
  right: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
  padding: 0;
  z-index: var(--z-local-2);
}

.mv-modal-close:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
  transform: rotate(90deg);
}

.mv-modal-video-wrap {
  position: relative;
  width: min(56vh, 360px);
  aspect-ratio: 9 / 16;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-black);
  box-shadow: 0 0 80px rgba(196, 30, 58, 0.15), 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.mv-modal-video-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.mv-modal-info {
  margin-top: var(--space-4);
  text-align: center;
}

.mv-modal-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: var(--font-bold);
  color: var(--color-white);
  line-height: 1.3;
}

.mv-modal-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  margin-top: 4px;
  text-transform: uppercase;
}

.mv-modal-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 10px;
}

.mv-pp-btn {
  background: none;
  border: none;
  color: rgba(255,255,255,0.85);
  cursor: pointer;
  padding: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s;
}
.mv-pp-btn:hover {
  color: var(--color-primary);
}

.mv-vol-btn {
  background: none;
  border: none;
  color: rgba(255,255,255,0.7);
  cursor: pointer;
  padding: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s;
}
.mv-vol-btn:hover {
  color: var(--color-primary);
}

.mv-vol-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,0.2);
  outline: none;
  cursor: pointer;
}
.mv-vol-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-white);
  cursor: pointer;
  transition: background 0.15s;
}
.mv-vol-slider::-webkit-slider-thumb:hover {
  background: var(--color-primary);
}
.mv-vol-slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-white);
  border: none;
  cursor: pointer;
}

/* MV弹窗响应式 */
@media (max-width: 768px) {
  .mv-modal-video-wrap {
    width: min(50vh, 300px);
  }
  .mv-modal-close {
    top: -42px;
    width: 36px;
    height: 36px;
  }
  .mv-modal-title {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .mv-modal-video-wrap {
    width: min(46vh, 260px);
  }
  .mv-modal-close {
    top: -38px;
    width: 32px;
    height: 32px;
  }
}

/* --- Hit Drama Section (Homepage) --- */
.drama-showcase {
  display: flex;
  gap: var(--space-6);
  align-items: stretch;
}

.drama-cover,
.drama-stats {
  cursor: pointer;
}

/* 右侧数据图：完整显示，无边框，决定整体高度 */
.drama-stats {
  flex: 2;
  min-width: 0;
}

.drama-stats img {
  width: 100%;
  height: auto;
  display: block;
  transition: filter 0.3s ease;
}

.drama-stats:hover img {
  filter: brightness(1.05);
}

/* 左侧封面图：拉伸到与数据图等高，裁切填充 */
.drama-cover {
  flex: 1;
  min-width: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.drama-cover img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: transform 0.4s ease;
}

.drama-cover:hover img {
  transform: scale(1.03);
}

@media (max-width: 768px) {
  .drama-showcase {
    flex-direction: column;
    gap: var(--space-4);
  }
  .drama-cover img {
    height: 280px;
  }
}

/* --- Drama Lightbox --- */
.drama-lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-preloader);
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.drama-lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.drama-lightbox__overlay {
  position: absolute;
  inset: 0;
  cursor: zoom-out;
}

.drama-lightbox__img {
  position: relative;
  z-index: var(--z-above);
  max-width: 92vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
  user-select: none;
}

.drama-lightbox__close {
  position: absolute;
  top: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-local-2);
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  color: var(--color-text-inverse);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast);
}

.drama-lightbox__close:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

/* --- Huajing AI Block --- */
.huajing-block {
  display: flex;
  gap: var(--space-12);
  align-items: center;
  margin-top: var(--space-16);
}

.huajing-info {
  flex: 0 0 320px;
}

.huajing-title {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-white);
  margin: var(--space-2) 0 var(--space-4);
}

.huajing-desc {
  font-size: var(--text-base);
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.8;
}

.huajing-screenshots {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
  min-width: 0;
}

.huajing-shot {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: all 0.3s ease;
}

.huajing-shot:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(196, 30, 58, 0.15);
}

.huajing-shot img {
  width: 100%;
  height: auto;
  display: block;
}

@media (max-width: 768px) {
  .huajing-block {
    flex-direction: column;
    gap: var(--space-8);
    margin-top: var(--space-12);
  }
  .huajing-info {
    flex: none;
    text-align: center;
  }
}

/* ============================================================
   智能体产品展示 (Agent Products)
   ============================================================ */

.agent-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  margin-bottom: var(--space-16);
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
}


.agent-card-visual {
  width: 100%;
}

.agent-screenshots {
  position: relative;
  border-radius: 0.75rem;
  overflow: hidden;
  background: var(--color-gray-100);
  aspect-ratio: 1920 / 689;
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.agent-screenshot {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.agent-screenshot.active {
  opacity: 1;
}

.agent-screenshot-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: var(--space-3);
}

.agent-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-gray-300);
  cursor: pointer;
  transition: all var(--duration-fast);
}

.agent-dot.active {
  background: var(--color-primary);
  transform: scale(1.2);
}

.agent-dot:hover {
  background: var(--color-primary-dark);
}

.agent-card-info {
  width: 100%;
}

.agent-info-row {
  display: flex;
  gap: var(--space-12);
  align-items: center;
}

.agent-info-main {
  flex: 1;
  min-width: 0;
  text-align: center;
}

.agent-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: var(--space-4);
}

.agent-card-title {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: var(--space-4);
}

.agent-card-desc {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-6);
}

.agent-features {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-left: var(--space-6);
  border-left: 2px solid var(--color-primary-light);
  justify-content: center;
}

.agent-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.agent-feature svg {
  flex-shrink: 0;
  color: var(--color-primary);
  margin-top: 2px;
}

.agent-highlight {
  color: var(--color-primary);
  font-weight: 600;
}

/* Responsive */
@media (max-width: 1024px) {
  .agent-card-title {
    font-size: var(--text-xl);
  }
  .agent-info-row {
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  .agent-card,
  .agent-card--reverse {
    gap: var(--space-6);
  }
  .agent-card-title {
    font-size: var(--text-xl);
  }
  .agent-info-row {
    flex-direction: column;
    gap: var(--space-6);
  }
  .agent-features {
    padding-left: 0;
    border-left: none;
    border-top: 2px solid var(--color-primary-light);
    padding-top: var(--space-4);
  }
}