/* ============================================================
   中兆文 · AI 视频作品集  —  单页滚动
   ============================================================ */

:root {
  --bg: #0a0a0a;
  --bg-2: #111;
  --text: #f4f4f4;
  --text-dim: #999;
  --line: rgba(255, 255, 255, 0.12);
  --line-2: rgba(255, 255, 255, 0.06);
  --yellow: #fa0;
  --yellow-soft: #fa08;
  --max: 1200px;
  --pad: clamp(20px, 4vw, 64px);
  --t: cubic-bezier(0.65, 0, 0.35, 1);
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

/* 全局噪点 */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.3 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.4; mix-blend-mode: overlay;
}

/* 字体已在 index.html 通过 <link> 加载,此处不再 @import */

/* ============================================================
   通用容器
   ============================================================ */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
  position: relative; z-index: 2;
}

.section {
  position: relative; z-index: 2;
  padding: clamp(80px, 12vw, 160px) 0;
}

/* 揭示动画 */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s var(--t), transform 0.9s var(--t);
}
.reveal.in { opacity: 1; transform: none; }
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }

/* 通用标题 */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 500; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 24px;
}
.eyebrow::before {
  content: ''; width: 32px; height: 1px; background: var(--yellow);
}
.section-title {
  font-size: clamp(40px, 6vw, 80px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.section-title em {
  font-style: normal;
  color: var(--yellow);
  font-family: 'Times New Roman', serif;
  font-style: italic;
}
.section-sub {
  color: var(--text-dim);
  font-size: 15px;
  letter-spacing: 0.05em;
}

/* ============================================================
   导航
   ============================================================ */
#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 24px var(--pad);
  display: flex; justify-content: space-between; align-items: center;
  transition: padding 0.4s var(--t), background 0.4s var(--t), backdrop-filter 0.4s;
}
#nav.scrolled {
  padding: 14px var(--pad);
  background: rgba(10, 10, 10, 0.7);
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--line-2);
}
.nav-logo {
  font-weight: 700; font-size: 18px; letter-spacing: 0.1em;
  display: flex; align-items: center; gap: 8px;
}
.nav-logo .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--yellow); }
.nav-links { display: flex; gap: 36px; }
.nav-link {
  position: relative;
  font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.3s;
}
.nav-link::after {
  content: ''; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 1px; background: var(--yellow);
  transition: width 0.4s var(--t);
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link.active::after { width: 100%; }
@media (max-width: 720px) { .nav-links { display: none; } }

/* ============================================================
   Hero
   ============================================================ */
#hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex; align-items: center;
  padding: 100px 0 60px;
  overflow: hidden;
}
/* 移动端 / 3D 降级背景 */
#hero.hero-fallback {
  background:
    radial-gradient(ellipse at 20% 30%, rgba(250, 170, 0, 0.15), transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(255, 80, 0, 0.1), transparent 50%),
    linear-gradient(180deg, #0a0a0a, #111);
}
#hero.hero-fallback::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* 网格背景层(始终显示) */
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: 1;
  pointer-events: none;
}
#hero-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 1;
}
.hero-content {
  position: relative; z-index: 3;
  text-align: center;
  width: 100%;
  padding: 0 var(--pad);
  display: flex; flex-direction: column; align-items: center;
}
.hero-title {
  font-size: clamp(48px, 8.5vw, 130px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 22px;
  font-family: 'Space Grotesk', system-ui, sans-serif;
  perspective: 800px;
}
.hero-title .stroke {
  /* 实色白字 + 极细描边强调轮廓,不再透明 */
  color: #ffffff;
  -webkit-text-stroke: 0.6px rgba(255, 255, 255, 0.4);
  text-shadow: 0 0 24px rgba(255, 255, 255, 0.15);
  display: block;
  text-transform: uppercase;
  transition: transform 0.6s var(--t), color 0.3s;
  font-weight: 700;
}
.hero-title .filled {
  /* 纯色实心字,不用 background-clip 避免透明问题 */
  color: #fa0;
  display: block;
  text-transform: uppercase;
  transition: transform 0.6s var(--t), color 0.3s, text-shadow 0.3s;
  font-weight: 800;
  text-shadow: 0 0 30px rgba(255, 170, 0, 0.45), 0 4px 12px rgba(255, 130, 0, 0.3);
}

/* 字符动画 */
.hero-title .ch,
.hero-sub .ch,
.hero-actions .btn .ch,
.btn .ch {
  display: inline-block;
  transition: transform 0.4s var(--t), color 0.3s, text-shadow 0.3s;
  will-change: transform;
}
.hero-title .stroke .ch,
.hero-title .filled .ch {
  cursor: default;
}
.hero-title .ch.wave {
  animation: chWave 0.7s ease;
}
@keyframes chWave {
  0%   { transform: translateY(0)    scale(1);    color: inherit; }
  30%  { transform: translateY(-22px) scale(1.25); color: #ffae00; text-shadow: 0 8px 24px rgba(255,170,0,0.7); }
  60%  { transform: translateY(8px)  scale(0.95); }
  100% { transform: translateY(0)   scale(1);    color: inherit; }
}

/* 副标题字符逐个浮现 */
.hero-sub .ch {
  opacity: 0;
  transform: translateY(8px);
  filter: blur(4px);
}
.hero-sub .ch.rise {
  animation: chRise 0.6s var(--t) forwards;
  animation-delay: calc(var(--i) * 0.04s);
}
@keyframes chRise {
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}
/* 副标题字符:鼠标经过时染上彩虹 */
.hero-sub:hover .ch {
  color: hsl(calc(var(--i) * 18), 80%, 65%);
}
.hero-sub {
  font-size: clamp(11px, 1.1vw, 14px);
  letter-spacing: 0.5em;
  color: var(--text-dim);
  margin-bottom: 36px;
  font-weight: 400;
}
.hero-hint {
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--text-dim);
  opacity: 0.5;
  margin-top: 22px;
  text-transform: uppercase;
}
.hero-hint .ch {
  display: inline-block;
  opacity: 0;
  transform: translateY(4px);
  animation: chRise 0.5s var(--t) forwards;
  animation-delay: calc(0.6s + var(--i) * 0.03s);
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px;
  font-size: 13px; font-weight: 500; letter-spacing: 0.12em;
  border: 1px solid var(--text);
  border-radius: 999px;
  transition: all 0.4s var(--t);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
}
/* 鼠标位置高光 */
.btn::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,0.35), transparent 50%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.btn:hover::before { opacity: 1; }
.btn.pulse {
  animation: btnPulse 0.5s var(--t);
}
@keyframes btnPulse {
  0%   { transform: scale(1); }
  50%  { transform: scale(0.92); }
  100% { transform: scale(1); }
}
.btn:hover {
  background: var(--text);
  color: var(--bg);
  transform: translateY(-2px);
}
.btn-primary {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--bg);
}
.btn-primary:hover {
  background: var(--text);
  border-color: var(--text);
}

.hero-scroll-hint {
  position: absolute; left: 50%; bottom: 28px;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  z-index: 3;
  font-size: 10px; letter-spacing: 0.4em; text-transform: uppercase;
  color: var(--text-dim);
  pointer-events: none;
}
.hero-vignette {
  position: absolute; inset: 0;
  z-index: 2;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 30%, rgba(0,0,0,0.55) 100%);
}
.hero-scroll-hint .line {
  width: 1px; height: 50px; background: var(--text-dim);
  position: relative; overflow: hidden;
}
.hero-scroll-hint .line::after {
  content: ''; position: absolute; left: 0; top: -100%;
  width: 100%; height: 100%; background: var(--yellow);
  animation: scrollLine 2.4s var(--t) infinite;
}
@keyframes scrollLine {
  0% { top: -100%; }
  60% { top: 100%; }
  100% { top: 100%; }
}

/* ============================================================
   About  —  拍立得 + 3D 狗
   ============================================================ */
#about { background: var(--bg); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: center;
}
@media (max-width: 880px) {
  .about-grid { grid-template-columns: 1fr; gap: 60px; }
}

.polaroid {
  position: relative;
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
  aspect-ratio: 1 / 1.05;
  padding: 18px 18px 70px;
  background: #f7f4ed;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.7), 0 10px 20px -10px rgba(0, 0, 0, 0.5);
  transform: rotate(-3deg);
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: rotate(-3deg) translateY(0); }
  50% { transform: rotate(-3deg) translateY(-12px); }
}
.polaroid-photo {
  width: 100%; height: 100%;
  background: #1a1a1a;
  position: relative; overflow: hidden;
}
#dog-wrap {
  position: absolute; inset: 0;
}
#dog-canvas {
  width: 100%; height: 100%;
  display: block;
  cursor: grab;
}
#dog-canvas:active { cursor: grabbing; }
#dog-bubble {
  position: absolute;
  top: 14%; right: -10%;
  padding: 8px 16px;
  background: var(--yellow);
  color: var(--bg);
  font-weight: 700; font-size: 18px; letter-spacing: 0.05em;
  border-radius: 16px;
  opacity: 0;
  transform: scale(0.5) translateY(20px);
  transition: all 0.4s var(--t);
  pointer-events: none;
  z-index: 5;
}
#dog-bubble::before {
  content: '';
  position: absolute; bottom: -8px; left: 20px;
  border: 8px solid transparent;
  border-top-color: var(--yellow);
  border-right: 0;
}
#dog-bubble.show { opacity: 1; transform: scale(1) translateY(0); }

.polaroid-stickers {
  position: absolute; inset: 0; pointer-events: none;
}
.sticker {
  position: absolute;
  font-size: 24px;
  animation: stickerBob 4s ease-in-out infinite;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}
.sticker-1 { top: -10px; left: -10px; animation-delay: 0s; }
.sticker-2 { top: 6px; right: -14px; animation-delay: 0.6s; font-size: 26px; }
.sticker-3 { bottom: 50px; left: -14px; animation-delay: 1.2s; }
.sticker-4 { bottom: 50px; right: -8px; animation-delay: 1.8s; }
.polaroid:hover .sticker { animation: stickerWiggle 0.6s ease-in-out; }
@keyframes stickerBob {
  0%, 100% { transform: rotate(0deg) translateY(0); }
  50% { transform: rotate(8deg) translateY(-4px); }
}
@keyframes stickerWiggle {
  0%, 100% { transform: rotate(0); }
  25% { transform: rotate(20deg) scale(1.2); }
  75% { transform: rotate(-20deg) scale(1.2); }
}
.polaroid-caption {
  position: absolute; bottom: 18px; left: 0; right: 0;
  text-align: center;
  color: #2a2a2a;
  font-family: 'Caveat', 'Brush Script MT', cursive;
  font-size: 22px;
  font-weight: 500;
}
.about-text .hi {
  font-family: 'Caveat', 'Brush Script MT', cursive;
  font-size: clamp(64px, 9vw, 120px);
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(180deg, #fa0 0%, #f50 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
.about-text p {
  font-size: 18px;
  line-height: 1.75;
  color: #d8d8d8;
  margin-bottom: 16px;
}
.about-text p b {
  color: var(--text);
  font-weight: 600;
}
.about-text .hl {
  display: inline-block;
  background: var(--yellow);
  color: var(--bg);
  padding: 2px 8px;
  margin: 0 2px;
  border-radius: 4px;
  font-weight: 500;
  transition: transform 0.3s var(--t);
  cursor: pointer;
}
.about-text .hl:hover { transform: scale(1.05) rotate(-2deg); }

.about-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.stat-num {
  font-size: 40px; font-weight: 700;
  color: var(--yellow);
  letter-spacing: -0.02em;
}
.stat-label {
  font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--text-dim);
  margin-top: 4px;
}

/* ============================================================
   Works  —  每个分类独立 MY WORKS
   ============================================================ */
.works-module { padding: clamp(60px, 9vw, 120px) 0; }
.works-module + .works-module { border-top: 1px solid var(--line-2); }
.works-head {
  display: flex; justify-content: space-between; align-items: end;
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.works-head-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.works-head-title em {
  font-family: 'Times New Roman', serif;
  font-style: italic;
  color: var(--yellow);
}
.works-head-meta {
  display: flex; gap: 20px;
  font-size: 11px; letter-spacing: 0.25em; text-transform: uppercase;
  color: var(--text-dim);
}
.works-head-meta span::before {
  content: '◆'; color: var(--yellow); margin-right: 6px;
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
@media (max-width: 720px) {
  .works-grid { grid-template-columns: 1fr; }
}

/* Featured 大图(全宽) */
.work-featured {
  grid-column: 1 / -1;
  position: relative;
  aspect-ratio: 21 / 9;
  overflow: hidden;
  border-radius: 12px;
  cursor: pointer;
}
.work-featured .thumb {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  transition: transform 0.8s var(--t);
}
.work-featured:hover .thumb { transform: scale(1.05); }
.work-featured .play-btn {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 80px; height: 80px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  color: var(--bg);
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
  transition: all 0.4s var(--t);
}
.work-featured .play-btn svg { width: 32px; height: 32px; margin-left: 4px; }
.work-featured:hover .play-btn { transform: translate(-50%, -50%) scale(1.15); background: var(--yellow); }
.work-featured .featured-overlay {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 60px 32px 32px;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.85));
  z-index: 1;
}
.work-featured .featured-overlay h3 {
  font-size: clamp(20px, 2.5vw, 32px);
  font-weight: 600;
  margin-bottom: 8px;
}
.work-featured .featured-overlay p { color: #ccc; max-width: 700px; }
.work-featured .work-info {
  position: absolute; bottom: 16px; left: 32px;
  z-index: 1;
  opacity: 0; pointer-events: none;
  transform: translateY(10px);
  transition: all 0.4s var(--t);
}
.work-featured .work-info h4 { font-size: 14px; color: #fff; margin-bottom: 4px; }
.work-featured .work-info p { font-size: 12px; color: #ccc; }
.work-featured:hover .featured-overlay { opacity: 0; }
.work-featured:hover .work-info { opacity: 1; transform: none; }

/* 普通卡片 */
.work-card {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-2);
  cursor: pointer;
  transition: transform 0.5s var(--t);
}
.work-card:hover { transform: translateY(-4px); }
.work-card .thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  background-size: cover; background-position: center;
  background-color: #222;
  overflow: hidden;
}
.work-card .thumb::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.4));
}
.work-card .thumb img { display: none; }
.work-card .play-btn {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.8);
  width: 56px; height: 56px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  color: var(--bg);
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transition: all 0.4s var(--t);
  z-index: 2;
}
.work-card .play-btn svg { width: 22px; height: 22px; margin-left: 3px; }
.work-card:hover .play-btn { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.work-card:hover .thumb::after { background: linear-gradient(180deg, rgba(0,0,0,0.2), rgba(0,0,0,0.6)); }

.work-card .duration {
  position: absolute; top: 12px; right: 12px;
  padding: 3px 8px;
  background: rgba(0, 0, 0, 0.7);
  font-size: 11px; font-weight: 500;
  border-radius: 4px;
  z-index: 2;
}

.work-info {
  padding: 18px 4px 4px;
}
.work-info .brand {
  display: block;
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 4px;
}
.work-info h4 {
  font-size: 16px; font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}
.work-info p {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 12px;
  line-height: 1.5;
}
.work-info .tags {
  display: flex; gap: 8px; flex-wrap: wrap;
}
.work-info .tags span {
  font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase;
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text-dim);
}

/* ============================================================
   Skills
   ============================================================ */
#skills { background: var(--bg-2); }
.skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 60px;
}
@media (max-width: 880px) { .skills-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .skills-grid { grid-template-columns: 1fr; } }
.skill-card {
  position: relative;
  padding: 32px 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg);
  transition: all 0.4s var(--t);
  overflow: hidden;
}
.skill-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 0; height: 2px;
  background: var(--yellow);
  transition: width 0.6s var(--t);
}
.skill-card:hover { transform: translateY(-6px); border-color: var(--yellow); }
.skill-card:hover::before { width: 100%; }
.skill-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  background: var(--yellow-soft);
  color: var(--yellow);
  margin-bottom: 20px;
  font-size: 22px;
}
.skill-card h4 {
  font-size: 18px; font-weight: 600;
  margin-bottom: 8px;
}
.skill-card p {
  font-size: 13px; color: var(--text-dim);
  line-height: 1.6;
}

/* ============================================================
   Contact
   ============================================================ */
#contact {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
#contact::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 800px; height: 800px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--yellow-soft), transparent 60%);
  filter: blur(60px);
  z-index: 0;
}
.contact-inner {
  position: relative; z-index: 2;
  text-align: center;
}
.contact-title {
  font-size: clamp(48px, 8vw, 100px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.contact-title em {
  font-family: 'Times New Roman', serif;
  font-style: italic;
  color: var(--yellow);
}
.contact-sub {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 500px;
  margin: 0 auto 60px;
}
.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}
@media (max-width: 720px) { .contact-cards { grid-template-columns: 1fr; } }
.contact-card {
  padding: 32px 24px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(10px);
  text-align: left;
  transition: all 0.4s var(--t);
}
.contact-card:hover {
  border-color: var(--yellow);
  background: rgba(255, 170, 0, 0.05);
  transform: translateY(-4px);
}
.contact-label {
  font-size: 11px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 8px;
}
.contact-value {
  font-size: 18px; font-weight: 500;
  word-break: break-all;
}
.contact-value a { transition: color 0.3s; }
.contact-value a:hover { color: var(--yellow); }

.footer-bottom {
  margin-top: 100px;
  padding-top: 32px;
  border-top: 1px solid var(--line-2);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--text-dim);
}

/* ============================================================
   视频播放器(模态)
   ============================================================ */
#player-modal {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0, 0, 0, 0.92);
  display: flex; align-items: center; justify-content: center;
  padding: 40px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.4s var(--t);
}
#player-modal.show { opacity: 1; pointer-events: auto; }
.player-box {
  width: 100%;
  max-width: 1100px;
  display: flex; flex-direction: column; gap: 20px;
}
.player-video-wrap {
  position: relative;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}
#player-video {
  width: 100%; height: 100%;
  display: block;
}
#player-close {
  position: absolute; top: 16px; right: 16px;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  z-index: 2;
  transition: background 0.3s;
}
#player-close:hover { background: var(--yellow); color: var(--bg); }
.player-info h2 {
  font-size: 24px; font-weight: 600;
  margin-bottom: 6px;
}
.player-info .meta {
  font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.player-info .desc { color: #ccc; }