/* ===== WRDQ GLOBAL STYLES ===== */
:root {
  --purple: #9B59F5;
  --purple-dark: #6C2BD9;
  --purple-light: #C084FC;
  --pink: #F472B6;
  --pink-hot: #FF2D78;
  --blue: #38BDF8;
  --blue-dark: #0EA5E9;
  --silver: #CBD5E1;
  --silver-light: #F1F5F9;
  --bg: #0A0612;
  --bg2: #120820;
  --bg3: #0D0D1A;
  --glass: rgba(255,255,255,0.05);
  --glass-border: rgba(255,255,255,0.12);
  --gold: #FFD700;
  --gradient-main: linear-gradient(135deg, #9B59F5 0%, #F472B6 50%, #38BDF8 100%);
  --gradient-acid: linear-gradient(135deg, #6C2BD9 0%, #FF2D78 40%, #38BDF8 80%, #9B59F5 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(155,89,245,0.15) 0%, rgba(244,114,182,0.1) 50%, rgba(56,189,248,0.15) 100%);
  --font-en: 'Space Grotesk', 'Outfit', sans-serif;
  --font-cn: 'Noto Sans SC', sans-serif;
  --neon-purple: 0 0 20px rgba(155,89,245,0.8), 0 0 40px rgba(155,89,245,0.4);
  --neon-pink: 0 0 20px rgba(244,114,182,0.8), 0 0 40px rgba(244,114,182,0.4);
  --neon-blue: 0 0 20px rgba(56,189,248,0.8), 0 0 40px rgba(56,189,248,0.4);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: #E8E8F0;
  font-family: var(--font-cn), var(--font-en);
  overflow-x: hidden;
  line-height: 1.6;
  /* 移动端禁止长按选中文字 */
  -webkit-tap-highlight-color: transparent;
}

/* 移动端按钮/链接点击高亮清除 */
a, button, [role="button"], .entrance-card, .glass-card, .video-card, .news-card {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* ===== MOBILE GLOBAL TOUCH ===== */
/* 表格横向滚动 */
.awards-table-wrap {
  -webkit-overflow-scrolling: touch;
}
/* 防止文字溢出 */
.rank-name, .inst-name, .news-title, .video-title {
  overflow-wrap: break-word;
  word-break: break-word;
}
/* 图片响应式保底 */
img { max-width: 100%; height: auto; }
/* 表单 input 在 iOS 防缩放 */
input, textarea, select {
  font-size: 16px; /* iOS 低于16px会自动缩放页面 */
}
/* 移动端卡片 active 状态（替代 hover） */
@media (hover: none) and (pointer: coarse) {
  .entrance-card:active { transform: scale(0.97); opacity: 0.9; }
  .founder-card:active { transform: scale(0.98); }
  .video-card:active { opacity: 0.85; }
  .btn-primary:active { transform: scale(0.97); }
  .btn-outline:active { transform: scale(0.97); }
  .tab-btn:active { transform: scale(0.96); }
  /* 关闭PC悬停动效 */
  .glass-card:hover, .video-card:hover, .news-card:hover,
  .performer-card:hover, .founder-card:hover, .inst-card:hover { transform: none; }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--purple); border-radius: 2px; }

/* ===== NOISE TEXTURE OVERLAY ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  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='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.4;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5 { font-family: var(--font-en), var(--font-cn); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  font-weight: 800;
}
.section-subtitle { color: var(--silver); font-size: 1rem; margin-bottom: 3rem; letter-spacing: 0.05em; text-transform: uppercase; }
.section-wrap { padding: 80px 0; position: relative; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ===== ACID DIVIDER ===== */
.acid-line {
  height: 2px;
  background: var(--gradient-main);
  border: none;
  margin: 0;
  box-shadow: var(--neon-purple);
}

/* ===== GLASS CARD ===== */
.glass-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  padding: 1px;
  background: var(--gradient-main);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.3s;
}
.glass-card:hover::before { opacity: 1; }
.glass-card:hover { transform: translateY(-4px); box-shadow: 0 20px 60px rgba(155,89,245,0.2); }

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: var(--gradient-main);
  border: none;
  border-radius: 50px;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.03em;
}
.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.2);
  transform: translateX(-100%);
  transition: transform 0.3s;
}
.btn-primary:hover::after { transform: translateX(0); }
.btn-primary:hover { box-shadow: var(--neon-purple); transform: scale(1.04); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: transparent;
  border: 1.5px solid var(--purple);
  border-radius: 50px;
  color: var(--purple-light);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s;
  letter-spacing: 0.03em;
}
.btn-outline:hover {
  background: var(--purple);
  color: #fff;
  box-shadow: var(--neon-purple);
}

/* ===== NAVBAR ===== */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.4s;
}
#navbar.scrolled {
  background: rgba(10,6,18,0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 10px 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-logo { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav-logo img { height: 44px; filter: brightness(1.2); }
.nav-logo-text { font-size: 1.1rem; font-weight: 800; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a { color: rgba(255,255,255,0.75); text-decoration: none; font-size: 0.9rem; font-weight: 500; transition: color 0.2s; white-space: nowrap; }
.nav-links a:hover { color: var(--purple-light); }
.nav-right { display: flex; align-items: center; gap: 12px; }
.lang-btn {
  padding: 6px 14px;
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  background: var(--glass);
  color: var(--silver);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.2s;
}
.lang-btn:hover { border-color: var(--purple); color: var(--purple-light); }
.nav-login {
  padding: 8px 20px;
  border: 1.5px solid var(--purple);
  border-radius: 20px;
  color: var(--purple-light);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s;
  cursor: pointer;
  background: transparent;
}
.nav-login:hover { background: var(--purple); color: #fff; }

/* Mobile Nav */
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.nav-hamburger span { display: block; width: 24px; height: 2px; background: var(--silver-light); border-radius: 2px; transition: all 0.3s; }
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10,6,18,0.97);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { color: #fff; text-decoration: none; font-size: 1.4rem; font-weight: 700; transition: color 0.2s; }
.mobile-menu a:hover { color: var(--purple-light); }
.mobile-close {
  position: absolute;
  top: 24px; right: 24px;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  cursor: pointer;
  color: var(--silver);
  font-size: 1.2rem;
}

.hero-container {
  width: 100%;
  position: relative;
  z-index: 2;
  padding-top: 110px;
  padding-bottom: 80px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
}

/* ===== HERO ===== */
#hero {
  min-height: 100dvh;
  min-height: 100vh; /* fallback */
  position: relative;
  display: flex;
  align-items: flex-start; /* 移动端从顶部开始，不强行居中 */
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, #0A0612 0%, #120820 40%, #0D0D1A 100%);
}
.hero-bg-img {
  position: absolute;
  inset: 0;
  background-image: url('主视觉背景.jpg');
  background-size: cover;
  background-position: center 20%;  /* 移动端偏上，露出人物而非空白 */
  opacity: 0.35;
}
.hero-orbs {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 8s ease-in-out infinite;
}
.orb-1 { width: 600px; height: 600px; background: radial-gradient(circle, rgba(155,89,245,0.4) 0%, transparent 70%); top: -200px; right: -100px; animation-delay: 0s; }
.orb-2 { width: 400px; height: 400px; background: radial-gradient(circle, rgba(244,114,182,0.3) 0%, transparent 70%); bottom: -100px; left: -50px; animation-delay: -3s; }
.orb-3 { width: 300px; height: 300px; background: radial-gradient(circle, rgba(56,189,248,0.3) 0%, transparent 70%); top: 50%; left: 40%; animation-delay: -6s; }
@keyframes orbFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}
.hero-content { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--purple-light);
  margin-bottom: 24px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.hero-badge .dot { width: 6px; height: 6px; background: var(--pink-hot); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.4); } }
.hero-title {
  font-size: clamp(2.8rem, 8vw, 6.5rem);
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: 8px;
  letter-spacing: -0.03em;
}
.hero-title-cn { color: #fff; display: block; }
.hero-title-en {
  display: block;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: clamp(1.8rem, 5vw, 4rem);
}
.hero-title-record {
  display: inline-block;
  background: var(--gradient-acid);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: clamp(1rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 8px;
}
.hero-desc { max-width: 600px; color: rgba(255,255,255,0.65); font-size: 1.1rem; margin: 24px 0 36px; line-height: 1.7; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 40px; flex-wrap: wrap; }
.stat-item { text-align: center; }
.stat-num { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 900; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; line-height: 1; }
.stat-label { font-size: 0.8rem; color: var(--silver); margin-top: 4px; letter-spacing: 0.08em; text-transform: uppercase; }
.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-main-img {
  width: 100%;
  max-width: 560px;
  border-radius: 24px;
  box-shadow: 0 0 80px rgba(155,89,245,0.4), 0 40px 80px rgba(0,0,0,0.6);
  position: relative;
  z-index: 1;
}
.hero-floating-card {
  position: absolute;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  border-radius: 16px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-fc-bottom { bottom: -20px; right: 10px; animation: floatCard 4s ease-in-out infinite; }
.hero-fc-top { top: 20px; left: -20px; animation: floatCard 4s ease-in-out infinite 2s; }
@keyframes floatCard { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
.hero-fc-icon { width: 40px; height: 40px; border-radius: 12px; background: var(--gradient-main); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; }
.hero-fc-text .title { font-size: 0.85rem; font-weight: 700; color: #fff; }
.hero-fc-text .sub { font-size: 0.75rem; color: var(--silver); }
.countdown-wrap { margin-bottom: 32px; }
.countdown-label { font-size: 0.8rem; color: var(--silver); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 12px; }
.countdown-items { display: flex; gap: 16px; }
.countdown-item { text-align: center; }
.countdown-num {
  display: flex; align-items: center; justify-content: center;
  width: 64px; height: 64px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  font-size: 1.8rem; font-weight: 900; color: #fff;
  font-variant-numeric: tabular-nums;
}
.countdown-unit { font-size: 0.7rem; color: var(--silver); margin-top: 6px; text-transform: uppercase; }
.scroll-hint { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; color: var(--silver); font-size: 0.75rem; animation: bounce 2s infinite; letter-spacing: 0.1em; }
.scroll-hint::after { content: ''; display: block; width: 1px; height: 40px; background: linear-gradient(to bottom, var(--purple), transparent); }
@keyframes bounce { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-8px); } }

/* ===== SECTION BACKGROUNDS ===== */
.bg-alt { background: var(--bg2); }
.bg-alt2 { background: var(--bg3); }
.bg-gradient-subtle { background: radial-gradient(ellipse at 50% 0%, rgba(155,89,245,0.08) 0%, transparent 70%), var(--bg); }

/* ===== VIDEO SECTION ===== */
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.video-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s;
}
.video-card:hover { transform: translateY(-6px); box-shadow: 0 20px 60px rgba(155,89,245,0.25); }
.video-thumb { position: relative; padding-top: 56.25%; background: #1a1030; }
.video-thumb iframe, .video-thumb video { position: absolute; inset: 0; width: 100%; height: 100%; }
.video-play-btn {
  position: absolute;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 60px; height: 60px;
  background: var(--gradient-main);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--neon-purple);
  transition: all 0.3s;
}
.video-thumb:hover .video-play-btn { transform: translate(-50%, -50%) scale(1.15); }
.video-info { padding: 16px; }
.video-tag { font-size: 0.75rem; color: var(--purple-light); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 6px; }
.video-title { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 8px; line-height: 1.4; }
.video-meta { font-size: 0.8rem; color: var(--silver); }

/* ===== PHOTO SECTION ===== */
.photo-live-wrap {
  text-align: center;
  padding: 60px 24px;
}
.photo-live-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; margin-bottom: 32px; }
.photo-item { aspect-ratio: 1; border-radius: 12px; overflow: hidden; }
.photo-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.photo-item:hover img { transform: scale(1.08); }

/* ===== AWARDS ===== */
.awards-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.tab-btn {
  padding: 10px 24px;
  border-radius: 50px;
  border: 1.5px solid var(--glass-border);
  background: var(--glass);
  color: var(--silver);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.tab-btn.active, .tab-btn:hover { background: var(--purple); border-color: var(--purple); color: #fff; box-shadow: var(--neon-purple); }
.awards-table-wrap { overflow-x: auto; border-radius: 16px; border: 1px solid var(--glass-border); }
.awards-table { width: 100%; border-collapse: collapse; }
.awards-table th { padding: 14px 20px; background: rgba(155,89,245,0.15); color: var(--purple-light); font-size: 0.85rem; text-align: left; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; }
.awards-table td { padding: 14px 20px; border-top: 1px solid var(--glass-border); font-size: 0.9rem; color: rgba(255,255,255,0.85); }
.awards-table tr:hover td { background: rgba(155,89,245,0.05); }
.award-medal { display: inline-flex; align-items: center; gap: 6px; font-weight: 700; }
.medal-gold { color: #FFD700; }
.medal-silver { color: #C0C0C0; }
.medal-bronze { color: #CD7F32; }

/* ===== FOUNDERS ===== */
.founders-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 32px; }
.founder-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  overflow: hidden;
  text-align: center;
  transition: all 0.3s;
  cursor: pointer;
  text-decoration: none;
}
.founder-card:hover { transform: translateY(-8px); box-shadow: 0 30px 80px rgba(155,89,245,0.3); }
.founder-img { width: 100%; aspect-ratio: 3/4; object-fit: cover; object-position: top; }
.founder-info { padding: 24px; }
.founder-name-cn { font-size: 1.4rem; font-weight: 900; color: #fff; margin-bottom: 4px; }
.founder-name-en { font-size: 0.85rem; color: var(--purple-light); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 12px; }
.founder-role { font-size: 0.85rem; color: var(--silver); margin-bottom: 16px; }
.founder-link { display: inline-flex; align-items: center; gap: 6px; font-size: 0.82rem; color: var(--purple-light); }

/* ===== STAR AMBASSADOR ===== */
#ambassador .ambassador-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.ambassador-img-wrap { position: relative; }
.ambassador-img { width: 100%; border-radius: 24px; box-shadow: 0 0 60px rgba(244,114,182,0.4); display: block; }
.ambassador-badge {
  position: absolute;
  top: 24px; right: 24px;
  background: var(--gradient-main);
  border-radius: 50%;
  width: 80px; height: 80px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 800; color: #fff; text-align: center; line-height: 1.3;
  box-shadow: var(--neon-pink);
}
.ambassador-title { font-size: clamp(1.5rem, 4vw, 2.8rem); font-weight: 900; color: #fff; margin-bottom: 12px; }
.ambassador-title span { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.ambassador-subtitle { color: var(--silver); font-size: 0.95rem; margin-bottom: 16px; }
.ambassador-year-badge { margin-bottom: 16px; }
.ambassador-quote { font-size: 1.1rem; color: rgba(255,255,255,0.7); line-height: 1.8; font-style: italic; border-left: 3px solid var(--pink); padding-left: 20px; margin: 20px 0; }
.ambassador-stats { display: flex; gap: 16px; flex-wrap: wrap; }
.ambassador-stat-card { padding: 16px 24px; border-radius: 14px; text-align: center; flex: 1; min-width: 120px; }
.ambassador-stat-num { font-size: 1.6rem; font-weight: 900; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.ambassador-stat-label { font-size: 0.78rem; color: var(--silver); }

/* ===== RANKINGS ===== */
.rank-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.rank-list { background: var(--glass); border: 1px solid var(--glass-border); border-radius: 20px; overflow: hidden; }
.rank-header { padding: 20px 24px; background: rgba(155,89,245,0.1); border-bottom: 1px solid var(--glass-border); }
.rank-header h3 { font-size: 1.1rem; font-weight: 700; color: #fff; }
.rank-item { display: flex; align-items: center; gap: 16px; padding: 14px 24px; border-bottom: 1px solid rgba(255,255,255,0.04); transition: background 0.2s; }
.rank-item:last-child { border-bottom: none; }
.rank-item:hover { background: rgba(155,89,245,0.06); }
.rank-num { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.85rem; font-weight: 900; flex-shrink: 0; }
.rank-1 { background: linear-gradient(135deg, #FFD700, #FFA500); color: #000; }
.rank-2 { background: linear-gradient(135deg, #C0C0C0, #A0A0A0); color: #000; }
.rank-3 { background: linear-gradient(135deg, #CD7F32, #A05C1E); color: #fff; }
.rank-other { background: var(--glass); border: 1px solid var(--glass-border); color: var(--silver); }
.rank-avatar { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; background: var(--glass); flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; }
.rank-info { flex: 1; min-width: 0; }
.rank-name { font-weight: 600; color: #fff; font-size: 0.95rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rank-sub { font-size: 0.78rem; color: var(--silver); }
.rank-score { font-weight: 900; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; font-size: 1rem; }

/* ===== INSTITUTIONS ===== */
.inst-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.inst-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  overflow: hidden;
  transition: all 0.3s;
}
.inst-card:hover { transform: translateY(-6px); box-shadow: 0 20px 60px rgba(155,89,245,0.2); }
.inst-img { width: 100%; height: 180px; object-fit: cover; }
.inst-body { padding: 20px; }
.inst-name { font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.inst-location { font-size: 0.82rem; color: var(--silver); display: flex; align-items: center; gap: 6px; margin-bottom: 8px; }
.inst-phone { font-size: 0.85rem; color: var(--purple-light); display: flex; align-items: center; gap: 6px; margin-bottom: 12px; }
.inst-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.inst-tag { padding: 4px 10px; background: rgba(155,89,245,0.15); border-radius: 20px; font-size: 0.75rem; color: var(--purple-light); }
.inst-actions { display: flex; gap: 10px; }
.inst-btn { flex: 1; padding: 9px; border-radius: 10px; border: 1px solid var(--glass-border); background: var(--glass); color: var(--silver); font-size: 0.8rem; cursor: pointer; text-align: center; transition: all 0.2s; text-decoration: none; display: flex; align-items: center; justify-content: center; gap: 4px; }
.inst-btn:hover { border-color: var(--purple); color: var(--purple-light); }

/* ===== STAFF ===== */
.staff-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 16px; }
.staff-card { text-align: center; }
.staff-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: var(--glass);
  border: 2px solid var(--glass-border);
  margin: 0 auto 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem;
  overflow: hidden;
  transition: all 0.3s;
}
.staff-card:hover .staff-avatar { border-color: var(--purple); box-shadow: var(--neon-purple); }
.staff-name { font-size: 0.9rem; font-weight: 600; color: #fff; margin-bottom: 4px; }
.staff-role { font-size: 0.75rem; color: var(--silver); }

/* ===== SPONSORS ===== */
.sponsor-marquee {
  overflow: hidden;
  padding: 20px 0;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}
.sponsor-track {
  display: flex;
  gap: 40px;
  animation: marquee 25s linear infinite;
  width: max-content;
}
.sponsor-track:hover { animation-play-state: paused; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.sponsor-logo {
  height: 60px;
  padding: 10px 24px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  white-space: nowrap;
  color: var(--silver);
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.2s;
  flex-shrink: 0;
  min-width: 120px;
}
.sponsor-logo:hover { border-color: var(--purple); color: var(--purple-light); }

/* ===== MEDIA / NEWS ===== */
.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.news-card { background: var(--glass); border: 1px solid var(--glass-border); border-radius: 16px; overflow: hidden; transition: all 0.3s; cursor: pointer; }
.news-card:hover { transform: translateY(-4px); box-shadow: 0 16px 48px rgba(155,89,245,0.2); }
.news-img { width: 100%; height: 180px; object-fit: cover; }
.news-body { padding: 20px; }
.news-tag { font-size: 0.75rem; color: var(--purple-light); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 8px; }
.news-title { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 8px; line-height: 1.5; }
.news-date { font-size: 0.78rem; color: var(--silver); }

/* ===== CITY MAP ===== */
#cities { position: relative; }
.cities-wrap { position: relative; }
.city-dots-svg { width: 100%; max-width: 900px; margin: 0 auto; display: block; }
.cities-list { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; justify-content: center; }
.city-chip {
  padding: 8px 18px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--silver);
  cursor: pointer;
  transition: all 0.2s;
}
.city-chip:hover, .city-chip.active { background: var(--purple); border-color: var(--purple); color: #fff; box-shadow: var(--neon-purple); }

/* ===== MUSIC PLAYER ===== */
.music-player {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 32px;
  max-width: 600px;
  margin: 0 auto;
  backdrop-filter: blur(20px);
  text-align: center;
}
.music-cover { width: 160px; height: 160px; border-radius: 50%; margin: 0 auto 24px; object-fit: cover; border: 3px solid var(--glass-border); animation: spin 20s linear infinite; animation-play-state: paused; box-shadow: var(--neon-purple); }
.music-cover.playing { animation-play-state: running; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.music-title { font-size: 1.3rem; font-weight: 800; color: #fff; margin-bottom: 4px; }
.music-artist { font-size: 0.9rem; color: var(--purple-light); margin-bottom: 24px; }
.music-controls { display: flex; align-items: center; justify-content: center; gap: 20px; margin-bottom: 20px; }
.music-btn {
  width: 52px; height: 52px;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  transition: all 0.2s;
  background: var(--glass);
  color: #fff;
  border: 1px solid var(--glass-border);
}
.music-btn.main {
  width: 64px; height: 64px;
  background: var(--gradient-main);
  border: none;
  box-shadow: var(--neon-purple);
  font-size: 1.5rem;
}
.music-btn:hover { transform: scale(1.1); }
.music-progress-wrap { position: relative; }
.music-progress { width: 100%; height: 4px; background: var(--glass-border); border-radius: 2px; cursor: pointer; appearance: none; -webkit-appearance: none; }
.music-progress::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%; background: var(--purple); cursor: pointer; }
.music-times { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--silver); margin-top: 8px; }

/* ===== MESSAGES ===== */
.messages-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }
.msg-card { background: var(--glass); border: 1px solid var(--glass-border); border-radius: 16px; padding: 20px; transition: all 0.3s; }
.msg-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(155,89,245,0.15); }
.msg-header { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.msg-avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--gradient-main); display: flex; align-items: center; justify-content: center; font-weight: 700; color: #fff; font-size: 1.1rem; flex-shrink: 0; }
.msg-name { font-weight: 600; color: #fff; font-size: 0.95rem; }
.msg-role { font-size: 0.75rem; color: var(--purple-light); }
.msg-text { color: rgba(255,255,255,0.75); font-size: 0.9rem; line-height: 1.7; }
.msg-date { font-size: 0.75rem; color: var(--silver); margin-top: 12px; }

/* Message form */
.msg-form { max-width: 600px; margin: 40px auto 0; background: var(--glass); border: 1px solid var(--glass-border); border-radius: 20px; padding: 32px; }
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--silver); margin-bottom: 8px; }
.form-input, .form-textarea {
  width: 100%;
  padding: 13px 16px;
  background: rgba(255,255,255,0.05);
  border: 1.5px solid var(--glass-border);
  border-radius: 12px;
  color: #fff;
  font-size: 0.95rem;
  transition: all 0.2s;
  font-family: inherit;
  resize: vertical;
}
.form-input:focus, .form-textarea:focus { outline: none; border-color: var(--purple); box-shadow: 0 0 0 3px rgba(155,89,245,0.15); }
.form-textarea { min-height: 120px; }

/* ===== SEARCH ===== */
.search-wrap { max-width: 700px; margin: 0 auto; }
.search-box { display: flex; gap: 12px; margin-bottom: 24px; }
.search-input {
  flex: 1;
  padding: 16px 24px;
  background: var(--glass);
  border: 1.5px solid var(--glass-border);
  border-radius: 50px;
  color: #fff;
  font-size: 1rem;
  transition: all 0.2s;
  font-family: inherit;
}
.search-input:focus { outline: none; border-color: var(--purple); }
.search-result { background: var(--glass); border: 1px solid var(--glass-border); border-radius: 16px; padding: 24px; display: none; }
.search-result.show { display: block; }

/* ===== REGISTRATION ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,6,18,0.92);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(8px);
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 40px;
  width: 100%;
  max-width: 460px;
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}
.modal-close { position: absolute; top: 20px; right: 20px; width: 36px; height: 36px; border-radius: 50%; background: var(--glass); border: 1px solid var(--glass-border); display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--silver); font-size: 1rem; transition: all 0.2s; }
.modal-close:hover { background: rgba(244,114,182,0.2); color: var(--pink); }
.modal-title { font-size: 1.6rem; font-weight: 800; color: #fff; margin-bottom: 8px; }
.modal-subtitle { font-size: 0.9rem; color: var(--silver); margin-bottom: 28px; }
.role-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 24px; }
.role-tab { flex: 1; min-width: 100px; padding: 10px; text-align: center; border-radius: 10px; border: 1.5px solid var(--glass-border); background: var(--glass); color: var(--silver); font-size: 0.82rem; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.role-tab.active { background: var(--purple); border-color: var(--purple); color: #fff; }
.auth-toggle { display: flex; gap: 8px; margin-bottom: 24px; padding: 4px; background: var(--glass); border-radius: 12px; }
.auth-toggle-btn { flex: 1; padding: 10px; text-align: center; border-radius: 10px; border: none; background: transparent; color: var(--silver); font-size: 0.88rem; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.auth-toggle-btn.active { background: var(--purple); color: #fff; }

/* ===== OFFICIAL ACCOUNT ===== */
.official-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 40px;
  text-align: center;
}
.wechat-icon { font-size: 4rem; margin-bottom: 16px; }
.official-name { font-size: 1.4rem; font-weight: 800; color: #fff; margin-bottom: 8px; }
.official-id { font-size: 0.9rem; color: var(--purple-light); margin-bottom: 20px; }
.qr-placeholder { width: 160px; height: 160px; margin: 0 auto 20px; background: #fff; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 0.8rem; color: #333; }

/* ===== FOOTER ===== */
footer {
  background: var(--bg2);
  border-top: 1px solid var(--glass-border);
  padding: 60px 0 30px;
  position: relative;
}
/* 顶部渐变分隔线 */
footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--purple), var(--pink), var(--blue), transparent);
  opacity: 0.6;
}
.footer-inner { display: grid; grid-template-columns: 2fr 3fr; gap: 40px; margin-bottom: 40px; }
.footer-brand { min-width: 0; }
.footer-logo-text { font-size: 1.1rem; font-weight: 800; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; margin-bottom: 12px; }
.footer-desc { font-size: 0.88rem; color: var(--silver); line-height: 1.7; margin-bottom: 20px; max-width: 360px; }
.footer-social { display: flex; gap: 12px; }
.social-btn { width: 38px; height: 38px; border-radius: 10px; background: var(--glass); border: 1px solid var(--glass-border); display: flex; align-items: center; justify-content: center; color: var(--silver); font-size: 1rem; cursor: pointer; transition: all 0.2s; text-decoration: none; }
.social-btn:hover { border-color: var(--purple); color: var(--purple-light); box-shadow: var(--neon-purple); }
.footer-cols { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; min-width: 0; }
.footer-col h4 { font-size: 0.9rem; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--silver); text-decoration: none; font-size: 0.85rem; transition: color 0.2s; }
.footer-col a:hover { color: var(--purple-light); }
.footer-bottom { border-top: 1px solid var(--glass-border); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-copy { font-size: 0.8rem; color: rgba(255,255,255,0.35); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { font-size: 0.78rem; color: rgba(255,255,255,0.3); text-decoration: none; transition: color 0.2s; }
.footer-legal a:hover { color: var(--purple-light); }
/* 品牌区与导航区分隔装饰线 */
.footer-brand::after {
  content: '';
  display: block;
  width: 40px;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 1px;
  margin-top: 20px;
  opacity: 0.5;
}

/* ===== GRID LAYOUTS ===== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ===== SECTION HEADER ===== */
.section-header { text-align: center; margin-bottom: 60px; }
.section-header .acid-tag {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(155,89,245,0.15);
  border: 1px solid rgba(155,89,245,0.3);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--purple-light);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

/* ===== PERFORMERS ===== */
.performers-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 20px; }
.performer-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
  text-align: center;
  transition: all 0.3s;
  cursor: pointer;
}
.performer-card:hover { transform: translateY(-6px); box-shadow: 0 20px 50px rgba(244,114,182,0.2); }
.performer-img { width: 100%; aspect-ratio: 1; object-fit: cover; background: linear-gradient(135deg, rgba(155,89,245,0.2), rgba(244,114,182,0.2)); display: flex; align-items: center; justify-content: center; font-size: 3rem; }
.performer-info { padding: 14px; }
.performer-name { font-weight: 700; color: #fff; font-size: 0.95rem; margin-bottom: 4px; }
.performer-org { font-size: 0.78rem; color: var(--purple-light); }
.performer-score { font-size: 0.82rem; color: var(--silver); margin-top: 6px; }

/* ===== STAR MESSAGES ===== */
.star-msgs-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.star-msg-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 24px;
  position: relative;
  overflow: hidden;
}
.star-msg-card::before {
  content: '"';
  position: absolute;
  top: -10px; right: 20px;
  font-size: 8rem;
  color: rgba(155,89,245,0.1);
  font-family: serif;
  line-height: 1;
}
.star-img { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; border: 2px solid var(--purple); margin-bottom: 14px; }
.star-name { font-weight: 700; color: #fff; font-size: 1rem; margin-bottom: 4px; }
.star-title { font-size: 0.78rem; color: var(--purple-light); margin-bottom: 14px; }
.star-quote { font-size: 0.9rem; color: rgba(255,255,255,0.75); line-height: 1.7; }

/* ===== ENTRANCE CARDS ===== */
.entrance-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; }
.entrance-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 32px 24px;
  text-align: center;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  transition: all 0.3s;
  cursor: pointer;
}
.entrance-card:hover { transform: translateY(-8px); box-shadow: 0 24px 60px rgba(155,89,245,0.25); border-color: var(--purple); }
.entrance-icon { width: 64px; height: 64px; border-radius: 18px; background: var(--gradient-main); display: flex; align-items: center; justify-content: center; font-size: 1.8rem; box-shadow: var(--neon-purple); }
.entrance-title { font-size: 1.05rem; font-weight: 700; color: #fff; }
.entrance-desc { font-size: 0.82rem; color: var(--silver); line-height: 1.5; }

/* ===== FLOATING ELEMENTS ===== */
.floating-record-badge {
  position: fixed;
  bottom: 100px;
  right: 24px;
  z-index: 500;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--neon-purple);
  cursor: pointer;
  animation: floatBadge 3s ease-in-out infinite;
  text-decoration: none;
}
@keyframes floatBadge { 0%, 100% { transform: translateY(0) rotate(0deg); } 50% { transform: translateY(-8px) rotate(5deg); } }
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 500;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--silver);
  transition: all 0.3s;
  opacity: 0;
  visibility: hidden;
}
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { border-color: var(--purple); color: var(--purple-light); box-shadow: var(--neon-purple); }

/* ===== HIGHLIGHTS ===== */
.highlight-text { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
}
.badge-purple { background: rgba(155,89,245,0.2); color: var(--purple-light); border: 1px solid rgba(155,89,245,0.3); }
.badge-pink { background: rgba(244,114,182,0.2); color: var(--pink); border: 1px solid rgba(244,114,182,0.3); }
.badge-blue { background: rgba(56,189,248,0.2); color: var(--blue); border: 1px solid rgba(56,189,248,0.3); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .footer-inner { grid-template-columns: 1fr 2fr; gap: 30px; }
  .rank-grid { grid-template-columns: 1fr; }
  #ambassador .ambassador-inner { grid-template-columns: 1fr; gap: 40px; }
}

/* ===== TABLET (768px) ===== */
@media (max-width: 768px) {
  /* === Navbar === */
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-logo-text { font-size: 0.92rem; }
  .nav-inner { gap: 8px; }
  /* 隐藏语言按钮，移动端不需要 */
  .lang-btn { display: none; }

  /* === Grid === */
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }

  /* === Hero === */
  .hero-grid { grid-template-columns: 1fr; gap: 0; }
  #hero .grid-2 { grid-template-columns: 1fr; gap: 0; }
  .hero-visual-wrap { display: none; }
  .hero-container { padding-top: 96px; padding-bottom: 56px; }
  .hero-content { padding: 0; }
  .hero-badge { font-size: 0.74rem; padding: 6px 14px; margin-bottom: 18px; }
  .hero-title { font-size: clamp(2.2rem, 9.5vw, 3rem); margin-bottom: 6px; }
  .hero-title-en { font-size: clamp(1.5rem, 6.5vw, 2.4rem); }
  .hero-title-record { font-size: clamp(0.88rem, 3.5vw, 1.2rem); margin-top: 6px; }
  .hero-desc { font-size: 0.94rem; margin: 14px 0 20px; line-height: 1.65; color: rgba(255,255,255,0.7); }
  .hero-actions { gap: 10px; margin-bottom: 28px; }
  .hero-actions .btn-primary,
  .hero-actions .btn-outline { width: 100%; justify-content: center; font-size: 0.95rem; padding: 14px 24px; }
  .hero-stats { gap: 24px 32px; margin-top: 4px; }
  .stat-num { font-size: clamp(1.6rem, 6vw, 2.2rem); }
  .stat-label { font-size: 0.7rem; }

  /* === Countdown === */
  .countdown-wrap { margin-bottom: 24px; }
  .countdown-items { gap: 10px; }
  .countdown-num { width: 56px; height: 56px; font-size: 1.35rem; border-radius: 10px; }
  .countdown-unit { font-size: 0.66rem; margin-top: 5px; }
  .countdown-label { font-size: 0.72rem; margin-bottom: 10px; }

  /* === Section spacing === */
  .section-wrap { padding: 52px 0; }
  .section-header { margin-bottom: 32px; }
  .section-title { font-size: clamp(1.8rem, 6vw, 2.8rem); }
  .section-subtitle { font-size: 0.82rem; margin-bottom: 2rem; letter-spacing: 0.04em; }
  .section-header .acid-tag { font-size: 0.72rem; padding: 5px 14px; margin-bottom: 12px; }

  /* === Founders === */
  .founders-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .founder-info { padding: 16px; }
  .founder-name-cn { font-size: 1.15rem; }
  .founder-role { font-size: 0.78rem; }

  /* === Ambassador === */
  #ambassador .ambassador-inner { grid-template-columns: 1fr; gap: 28px; }
  .ambassador-img { width: 100%; border-radius: 18px; object-fit: contain; object-position: top center; }
  .ambassador-badge { top: 16px; right: 16px; padding: 6px 12px; font-size: 0.62rem; }
  .ambassador-title { font-size: clamp(1.4rem, 5vw, 2.2rem); }
  .ambassador-quote { font-size: 0.95rem; padding-left: 14px; margin: 14px 0; }

  /* === Awards === */
  .awards-tabs { gap: 6px; flex-wrap: wrap; }
  .tab-btn { padding: 8px 14px; font-size: 0.78rem; }
  .awards-table th, .awards-table td { padding: 10px 12px; font-size: 0.82rem; }

  /* === Rankings === */
  .rank-grid { grid-template-columns: 1fr; gap: 16px; }
  .rank-item { padding: 12px 16px; gap: 12px; }
  .rank-name { font-size: 0.88rem; }
  .rank-sub { font-size: 0.72rem; }
  .rank-score { font-size: 0.92rem; }

  /* === Performers === */
  .performers-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
  .performer-info { padding: 10px; }
  .performer-name { font-size: 0.88rem; }

  /* === Institutions === */
  .inst-grid { grid-template-columns: 1fr; }
  .inst-actions { gap: 6px; }
  .inst-btn { font-size: 0.75rem; padding: 8px 6px; }

  /* === Staff === */
  .staff-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 12px; }
  .staff-avatar { width: 60px; height: 60px; font-size: 1.3rem; }
  .staff-name { font-size: 0.8rem; }
  .staff-role { font-size: 0.68rem; }

  /* === City stats === */
  #cityStatsGrid { grid-template-columns: repeat(3, 1fr) !important; gap: 12px !important; }

  /* === Music player === */
  .music-player { padding: 24px 18px; }
  .music-cover { width: 110px; height: 110px; margin-bottom: 18px; }
  .music-title { font-size: 1.1rem; }
  .music-artist { font-size: 0.82rem; margin-bottom: 18px; }

  /* === Star messages / Parent messages === */
  .star-msgs-grid { grid-template-columns: 1fr; gap: 14px; }
  .messages-grid { grid-template-columns: 1fr; gap: 12px; }

  /* === Entrance cards === */
  .entrance-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .entrance-card { padding: 20px 14px; gap: 10px; border-radius: 16px; }
  .entrance-icon { width: 48px; height: 48px; font-size: 1.3rem; border-radius: 14px; }
  .entrance-title { font-size: 0.9rem; }
  .entrance-desc { font-size: 0.76rem; }

  /* === Footer — 768px 极简高级布局 === */
  .footer-inner { grid-template-columns: 1fr; gap: 0; }
  .footer-desc { max-width: none; margin-bottom: 16px; }
  /* 移动端隐藏3列导航，只保留品牌区 */
  .footer-cols { display: none; }
  /* footer-inner 不需要 margin-bottom */
  .footer-inner { margin-bottom: 0; }
  /* brand区居中 */
  .footer-brand { text-align: center; }
  .footer-social { justify-content: center; }
  .footer-desc { max-width: 320px; margin-left: auto; margin-right: auto; }
  .footer-brand::after { margin-left: auto; margin-right: auto; }
  .footer-bottom { flex-direction: column; align-items: center; gap: 8px; text-align: center; padding-top: 20px; }
  .footer-logo-text { font-size: 0.95rem; }
  .footer-desc { font-size: 0.82rem; }

  /* === Photo grid === */
  .photo-live-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .photo-item { border-radius: 10px; }

  /* === News grid === */
  .news-grid { grid-template-columns: 1fr; gap: 16px; }
  .news-img { height: 160px; }

  /* === Video grid === */
  .video-grid { grid-template-columns: 1fr; gap: 16px; }

  /* === Modal === */
  .modal-box { padding: 28px 20px; border-radius: 20px; }
  .role-tabs { flex-wrap: wrap; gap: 6px; }
  .role-tab { min-width: 80px; font-size: 0.78rem; }
  .modal-title { font-size: 1.4rem; }

  /* === Official card === */
  .official-card { padding: 32px 20px; }

  /* === Sponsors marquee === */
  .sponsor-logo { height: 52px; padding: 8px 18px; font-size: 0.82rem; }

  /* 隐藏滚动提示 */
  .scroll-hint { display: none; }

  /* === Background orbs 移动端缩小 === */
  .orb-1 { width: 300px; height: 300px; top: -80px; right: -60px; }
  .orb-2 { width: 220px; height: 220px; }
  .orb-3 { width: 160px; height: 160px; }
}

/* ===== MOBILE (480px) ===== */
@media (max-width: 480px) {
  /* === Container === */
  .container { padding: 0 16px; }

  /* === Section === */
  .section-wrap { padding: 36px 0; }
  .section-title { font-size: clamp(1.55rem, 7.5vw, 2rem); }
  .section-header { margin-bottom: 24px; }
  .section-subtitle { font-size: 0.78rem; }

  /* === Hero === */
  .hero-container { padding-top: 88px; padding-bottom: 40px; }
  .hero-badge { font-size: 0.7rem; padding: 5px 12px; margin-bottom: 14px; }
  .hero-title { font-size: clamp(2rem, 10vw, 2.6rem); }
  .hero-title-en { font-size: clamp(1.35rem, 6vw, 1.9rem); }
  .hero-title-record { font-size: clamp(0.78rem, 3.2vw, 1.1rem); }
  .hero-desc { font-size: 0.88rem; margin: 12px 0 18px; -webkit-line-clamp: 3; }
  .hero-stats { gap: 16px 24px; }
  .stat-num { font-size: clamp(1.4rem, 6vw, 1.9rem); }
  .stat-label { font-size: 0.68rem; }

  /* === Countdown === */
  .countdown-wrap { margin-bottom: 18px; }
  .countdown-items { gap: 7px; }
  .countdown-num { width: 44px; height: 44px; font-size: 1.1rem; border-radius: 8px; }
  .countdown-unit { font-size: 0.6rem; margin-top: 4px; }
  .countdown-label { font-size: 0.68rem; margin-bottom: 8px; }

  /* === Hero actions === */
  .hero-actions { flex-direction: column; gap: 10px; margin-bottom: 20px; }
  .hero-actions .btn-primary,
  .hero-actions .btn-outline { padding: 13px 20px; font-size: 0.92rem; }

  /* === Founders === */
  .founders-grid { grid-template-columns: 1fr; gap: 16px; }
  .founder-card { max-width: 300px; margin: 0 auto; }
  .founder-img { aspect-ratio: 4/5; }
  .founder-info { padding: 16px; }

  /* === Ambassador === */
  .ambassador-img { border-radius: 14px; }
  .ambassador-badge { top: 12px; right: 12px; padding: 5px 10px; font-size: 0.58rem; }
  .ambassador-quote { font-size: 0.88rem; }
  /* 数据卡两列 */
  #ambassador .grid-2 { grid-template-columns: repeat(2, 1fr) !important; gap: 10px; }

  /* === Awards === */
  .awards-tabs { gap: 5px; }
  .tab-btn { padding: 7px 12px; font-size: 0.74rem; }
  .awards-table-wrap { border-radius: 10px; }
  .awards-table th, .awards-table td { padding: 9px 10px; font-size: 0.76rem; white-space: nowrap; }

  /* === City stats === */
  #cityStatsGrid { grid-template-columns: repeat(2, 1fr) !important; gap: 10px !important; }

  /* === Entrance cards — 2列紧凑 === */
  .entrance-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .entrance-card { padding: 16px 10px; gap: 8px; border-radius: 14px; }
  .entrance-icon { width: 40px; height: 40px; font-size: 1.1rem; border-radius: 10px; }
  .entrance-title { font-size: 0.82rem; font-weight: 700; }
  .entrance-desc { display: none; }  /* 超小屏隐藏描述 */

  /* === Staff === */
  .staff-grid { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: 10px; }
  .staff-avatar { width: 48px; height: 48px; font-size: 1rem; }
  .staff-name { font-size: 0.75rem; }

  /* === Photo grid === */
  .photo-live-grid { grid-template-columns: repeat(2, 1fr); gap: 6px; }
  .photo-item { border-radius: 8px; }

  /* === Music === */
  .music-player { padding: 20px 14px; }
  .music-cover { width: 90px; height: 90px; margin-bottom: 14px; }
  .music-title { font-size: 1rem; }
  .music-artist { font-size: 0.78rem; margin-bottom: 14px; }
  .music-controls { gap: 14px; margin-bottom: 14px; }
  .music-btn { width: 42px; height: 42px; font-size: 0.95rem; }
  .music-btn.main { width: 54px; height: 54px; font-size: 1.15rem; }

  /* === Modal === */
  .modal-overlay { padding: 12px; }
  .modal-box { padding: 22px 16px; border-radius: 18px; max-height: 95dvh; max-height: 95vh; }
  .modal-title { font-size: 1.25rem; }
  .modal-subtitle { font-size: 0.82rem; margin-bottom: 20px; }
  .role-tab { padding: 8px 6px; font-size: 0.72rem; min-width: 72px; }

  /* === Footer — 480px 极简 === */
  .footer-inner { grid-template-columns: 1fr; gap: 0; margin-bottom: 0; }
  .footer-cols { display: none; }
  .footer-brand { text-align: center; }
  .footer-social { justify-content: center; }
  .footer-desc { max-width: 280px; margin-left: auto; margin-right: auto; font-size: 0.78rem; -webkit-line-clamp: 2; display: -webkit-box; -webkit-box-orient: vertical; overflow: hidden; }
  footer { padding: 28px 0 28px; }
  .footer-logo-text { font-size: 0.88rem; }
  .footer-bottom { flex-direction: column; align-items: center; gap: 6px; text-align: center; padding-top: 16px; }
  .footer-copy { font-size: 0.68rem; line-height: 1.5; }
  .footer-legal { gap: 14px; }
  .footer-legal a { font-size: 0.7rem; }
  .social-btn { width: 36px; height: 36px; font-size: 0.9rem; border-radius: 10px; }

  /* === Floating buttons === */
  .floating-record-badge { width: 50px; height: 50px; font-size: 1.1rem; bottom: 76px; right: 14px; }
  .back-to-top { width: 38px; height: 38px; font-size: 0.85rem; bottom: 16px; right: 14px; }

  /* === Star messages === */
  .star-msgs-grid { gap: 12px; }
  .star-msg-card { padding: 16px; }
  .star-img { width: 52px; height: 52px; }
  .star-name { font-size: 0.92rem; }
  .star-quote { font-size: 0.84rem; }

  /* === Parent messages === */
  .messages-grid { gap: 12px; }
  .msg-form { padding: 20px 14px; }
  .msg-card { padding: 16px; }
  .msg-avatar { width: 38px; height: 38px; font-size: 0.95rem; }
  .msg-text { font-size: 0.84rem; }

  /* === Official card === */
  .official-card { padding: 24px 16px; }
  .wechat-icon { font-size: 3rem; }
  .official-name { font-size: 1.15rem; }

  /* === Search === */
  .search-box { flex-direction: column; gap: 8px; }
  .search-input { border-radius: 12px; padding: 13px 18px; font-size: 0.9rem; }
  .search-box .btn-primary { width: 100%; justify-content: center; border-radius: 12px; }

  /* === Performers === */
  .performers-grid { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 10px; }
  .performer-info { padding: 8px; }
  .performer-name { font-size: 0.82rem; }
  .performer-org { font-size: 0.72rem; }

  /* === Glass card hover 移动端禁用（避免触摸残留状态） === */
  .glass-card:hover { transform: none; box-shadow: none; }
  .glass-card:hover::before { opacity: 0; }
  .video-card:hover { transform: none; box-shadow: none; }
  .news-card:hover { transform: none; box-shadow: none; }
  .entrance-card:hover { transform: none; box-shadow: none; border-color: var(--glass-border); }
  .performer-card:hover { transform: none; box-shadow: none; }
  .founder-card:hover { transform: none; box-shadow: none; }
  .inst-card:hover { transform: none; box-shadow: none; }
}

/* ===== ANIMATION UTILITIES ===== */
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }

/* ===== ACID DECORATIONS ===== */
.acid-corner {
  position: absolute;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(155,89,245,0.2) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.acid-corner-tl { top: -80px; left: -80px; }
.acid-corner-br { bottom: -80px; right: -80px; background: radial-gradient(circle, rgba(244,114,182,0.2) 0%, transparent 70%); }

/* Loading states */
.skeleton { background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.04) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 8px; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }