/* ============ 基础 ============ */
:root {
  --bg: #0a0b09;
  --bg2: #101210;
  --fg: #f4f6f0;
  --fg-dim: #9aa093;
  --fg-faint: rgba(154, 160, 147, .55);
  --accent: #46e60d;
  --accent-dim: rgba(70, 230, 13, .35);
  --line: rgba(242, 244, 239, .1);
  --card: #131512;
  --maxw: 1360px;
  --sans: "Space Grotesk", "Segoe UI Variable Display", "Segoe UI", "MiSans",
          "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --serif: "Georgia", "Songti SC", "SimSun", serif;
  --mono: "Cascadia Code", "Consolas", "JetBrains Mono", monospace;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
em { font-style: normal; }
img { max-width: 100%; display: block; }
::selection { background: var(--accent); color: #0a0f06; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #2a2d27; border-radius: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
.accent { color: var(--accent); }
.serif-i { font-family: var(--serif); font-style: italic; font-weight: 400; }

/* 滚动入场 */
.rv { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.8,.2,1); }
.rv.on { opacity: 1; transform: none; }

/* ============ 导航 ============ */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px 44px;
  background: linear-gradient(rgba(10,11,9,.92), rgba(10,11,9,0));
}
.nav-logo { font-weight: 700; font-size: 19px; letter-spacing: .14em; }
.nav-links { display: flex; gap: 34px; align-items: center; }
.nav-links a {
  font-size: 13px; color: var(--fg-dim); letter-spacing: .08em;
  position: relative; padding-bottom: 3px; transition: color .2s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--accent); transition: width .25s ease;
}
.nav-links a:hover { color: var(--fg); }
.nav-links a:hover::after { width: 100%; }
.nav-links a em { font-size: 10px; letter-spacing: .18em; color: var(--fg-faint); margin-left: 4px; }

/* ============ 首屏 ============ */
.hero {
  min-height: 100svh; position: relative;
  display: flex; flex-direction: column; justify-content: center;
  padding: 0 7vw;
}
.hero-eyebrow {
  font-size: 11px; letter-spacing: .42em; color: var(--fg-dim);
  margin-bottom: 30px; display: flex; align-items: center; gap: 14px;
}
.hero-eyebrow::before { content: ""; width: 44px; height: 1px; background: var(--accent); }
.hero-name {
  font-size: clamp(64px, 12.5vw, 176px);
  font-weight: 800; line-height: .98; letter-spacing: .015em;
}
.hero-en {
  font-size: clamp(14px, 2vw, 24px);
  letter-spacing: .55em; color: var(--fg-dim); margin: 18px 0 44px 4px;
}
.hero-tagline {
  font-size: clamp(16px, 1.7vw, 21px);
  line-height: 2; color: var(--fg-dim); max-width: 660px;
}
.hero-tagline b { color: var(--fg); font-weight: 600; }
.hero-stats {
  display: flex; gap: 56px; margin-top: 60px; flex-wrap: wrap;
}
.hero-stats div b {
  display: block; font-size: clamp(26px, 3vw, 40px); font-weight: 700; color: var(--fg);
}
.hero-stats div span { font-size: 11px; letter-spacing: .22em; color: var(--fg-faint); }
.hero-scroll {
  position: absolute; bottom: 44px; left: 7vw;
  font-size: 10px; letter-spacing: .3em; color: var(--fg-dim);
  display: flex; align-items: center; gap: 12px;
}
.hero-scroll-line {
  width: 72px; height: 1px; background: rgba(154,160,147,.4);
  display: inline-block; position: relative; overflow: hidden;
}
.hero-scroll-line::after {
  content: ""; position: absolute; inset: 0;
  background: var(--accent); transform: translateX(-100%);
  animation: slide 2.2s ease-in-out infinite;
}
@keyframes slide { 50% { transform: translateX(0); } 100% { transform: translateX(100%); } }
.hero-glow {
  position: absolute; right: -12vw; top: 16vh;
  width: 52vw; height: 52vw; border-radius: 50%;
  background: radial-gradient(circle, rgba(70,230,13,.13), transparent 62%);
  pointer-events: none;
}
.hero-grid-bg {
  position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: linear-gradient(rgba(242,244,239,.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(242,244,239,.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at 30% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 40%, black 20%, transparent 70%);
}

/* ============ 跑马灯 ============ */
.marquee {
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  overflow: hidden; padding: 16px 0; background: var(--bg2);
}
.marquee-track {
  display: flex; white-space: nowrap;
  animation: marquee 30s linear infinite;
  font-size: 12px; letter-spacing: .3em; color: var(--fg-dim);
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* ============ 区块 ============ */
.section { max-width: var(--maxw); margin: 0 auto; padding: 120px 44px 40px; }
.section-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  flex-wrap: wrap; gap: 26px; margin-bottom: 56px;
}
.section-head h2 {
  font-size: clamp(30px, 4.4vw, 52px); font-weight: 800; letter-spacing: .01em;
}
.section-head h2 em {
  display: block; font-size: 11px; letter-spacing: .38em;
  color: var(--fg-dim); margin-top: 10px; font-weight: 400;
}

/* ============ 筛选 ============ */
.filters { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-btn {
  border: 1px solid var(--line); background: transparent; color: var(--fg-dim);
  padding: 9px 20px; border-radius: 99px; font-size: 13px; cursor: pointer;
  transition: all .22s; font-family: inherit; letter-spacing: .04em;
}
.filter-btn:hover { border-color: var(--fg-dim); color: var(--fg); transform: translateY(-1px); }
.filter-btn.active { background: var(--accent); border-color: var(--accent); color: #0a0f06; font-weight: 700; }

/* ============ 作品网格（bento） ============ */
.grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 28px;
  padding-bottom: 40px;
}
/* 后续项目：每行 3 个（小） */
.card {
  grid-column: span 2;
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  overflow: hidden; cursor: pointer; position: relative;
  transition: transform .4s cubic-bezier(.2,.8,.2,1), border-color .4s, box-shadow .4s;
}
/* 前 4 个重点项目：每行 2 个（大） */
.card--lead { grid-column: span 3; }
.card--wide { grid-column: span 3; }
.card:hover {
  transform: translateY(-8px);
  border-color: var(--accent-dim);
  box-shadow: 0 24px 60px -24px rgba(70,230,13,.18);
}
.card-cover { aspect-ratio: 16/10; overflow: hidden; background: #000; position: relative; }
.card--lead .card-cover { aspect-ratio: 16/9; }
.card-cover img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .7s cubic-bezier(.2,.8,.2,1), opacity .4s;
  opacity: .9;
}
.card:hover .card-cover img { transform: scale(1.06); opacity: 1; }
.card-vid {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; opacity: 0; transition: opacity .35s ease;
  pointer-events: none;
}
.card-idx {
  position: absolute; top: 14px; left: 16px;
  font-size: 11px; letter-spacing: .2em; color: rgba(244,246,240,.85);
  background: rgba(10,11,9,.55); backdrop-filter: blur(6px);
  padding: 5px 10px; border-radius: 6px;
}
.card-chip {
  position: absolute; top: 14px; right: 16px;
  font-size: 10px; letter-spacing: .18em; color: #0a0f06; font-weight: 700;
  background: var(--accent); padding: 5px 10px; border-radius: 6px;
  opacity: 0; transform: translateY(-6px); transition: all .3s ease;
}
.card:hover .card-chip { opacity: 1; transform: none; }
/* 小卡（后续项目） */
.card-body { padding: 20px 22px 24px; }
.card-cat {
  font-size: 10px; letter-spacing: .22em; color: var(--accent);
  margin-bottom: 10px; display: flex; justify-content: space-between;
}
.card-cat span:last-child { color: var(--fg-faint); }
.card-title { font-size: 19px; font-weight: 700; margin-bottom: 5px; letter-spacing: .01em; }
.card-en { font-size: 9.5px; letter-spacing: .2em; color: var(--fg-faint); margin-bottom: 11px; text-transform: uppercase; }
.card-summary { font-size: 12.5px; line-height: 1.8; color: var(--fg-dim); }
.card-award {
  margin-top: 13px; font-size: 10.5px; color: #d8e6c8; line-height: 1.5;
  background: rgba(70,230,13,.07); border: 1px solid rgba(70,230,13,.22);
  padding: 5px 9px; border-radius: 6px; display: inline-block;
}
/* 大卡（前 4 个重点项目）字号上浮 */
.card--lead .card-body { padding: 26px 28px 30px; }
.card--lead .card-cat { font-size: 11px; margin-bottom: 12px; }
.card--lead .card-title { font-size: 24px; margin-bottom: 6px; }
.card--lead .card-en { font-size: 10.5px; margin-bottom: 14px; }
.card--lead .card-summary { font-size: 14px; }
.card--lead .card-award { font-size: 11.5px; margin-top: 16px; padding: 6px 11px; }

/* ============ 关于 ============ */
.about { border-top: 1px solid var(--line); }
.about-cols { display: grid; grid-template-columns: 1.2fr 1fr; gap: 72px; }
.about-lead {
  font-size: 19px; line-height: 2.05; color: var(--fg); margin-bottom: 52px;
  border-left: 2px solid var(--accent); padding-left: 22px;
}
.about-block { margin-bottom: 46px; }
.about-block h3 { font-size: 15px; letter-spacing: .1em; margin-bottom: 22px; }
.about-block h3 em { font-size: 10px; letter-spacing: .32em; color: var(--fg-dim); margin-left: 10px; }
.timeline { list-style: none; }
.timeline li {
  display: grid; grid-template-columns: 150px 1fr; gap: 16px;
  padding: 15px 0; border-bottom: 1px dashed var(--line);
  font-size: 14px;
}
.timeline .t { color: var(--accent); font-size: 12px; letter-spacing: .06em; padding-top: 2px; font-family: var(--mono); }
.timeline .d b { display: block; margin-bottom: 3px; }
.timeline .d span { color: var(--fg-dim); font-size: 13px; }
.skill-row { margin-bottom: 20px; }
.skill-row b { display: block; font-size: 13px; color: var(--accent); margin-bottom: 7px; letter-spacing: .05em; }
.skill-row p { font-size: 13px; line-height: 1.95; color: var(--fg-dim); }
.award-list { list-style: none; }
.award-list li {
  font-size: 13px; color: var(--fg-dim); line-height: 1.7;
  padding: 10px 0 10px 18px; position: relative; border-bottom: 1px dashed var(--line);
}
.award-list li::before {
  content: ""; position: absolute; left: 0; top: 17px;
  width: 6px; height: 6px; background: var(--accent); border-radius: 50%;
}

/* ============ 联系 ============ */
.contact {
  border-top: 1px solid var(--line); text-align: center;
  padding: 130px 24px 64px; background: var(--bg2); position: relative; overflow: hidden;
}
.contact-hi { font-size: 15px; color: var(--fg-dim); letter-spacing: .12em; margin-bottom: 26px; }
.contact-mail {
  font-size: clamp(16px, 2vw, 24px); font-weight: 600; letter-spacing: .02em;
  border-bottom: 2px solid var(--accent); padding-bottom: 6px;
  transition: color .2s;
}
.contact-mail:hover { color: var(--accent); }
.contact-foot { margin-top: 84px; font-size: 11px; color: var(--fg-faint); letter-spacing: .08em; }

/* ============ 详情浮层 ============ */
.detail {
  position: fixed; inset: 0; z-index: 100; background: var(--bg);
  display: flex; flex-direction: column;
  animation: fadeIn .25s ease;
}
.detail[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.detail-bar {
  display: flex; justify-content: flex-end; padding: 16px 32px;
  border-bottom: 1px solid var(--line); background: rgba(10,11,9,.92);
}
.detail-close {
  background: none; border: 1px solid var(--line); color: var(--fg);
  font-size: 12px; letter-spacing: .18em; padding: 10px 24px;
  border-radius: 99px; cursor: pointer; transition: all .2s; font-family: inherit;
}
.detail-close:hover { background: var(--accent); color: #0a0f06; border-color: var(--accent); }
.detail-scroll { overflow-y: auto; flex: 1; }
/* 详情页整体放大到 175%（zoom 会等比缩放内部所有元素）
   max-width 除以 1.75，使视觉宽度仍填满屏幕而不溢出 */
.detail-inner {
  zoom: 1.75;
  max-width: min(1020px, calc(100vw / 1.75 - 26px));
  margin: 0 auto; padding: 34px 20px 74px;
}
@media (max-width: 900px) {
  .detail-inner { zoom: 1.15; max-width: calc(100vw / 1.15 - 18px); padding: 40px 16px 90px; }
}
.detail-cat { font-size: 11px; letter-spacing: .32em; color: var(--accent); margin-bottom: 20px; }
.detail-title { font-size: clamp(34px, 5.6vw, 68px); font-weight: 800; line-height: 1.12; letter-spacing: .01em; }
.detail-en { font-size: 12px; letter-spacing: .32em; color: var(--fg-dim); margin: 14px 0 34px; text-transform: uppercase; }
.detail-award {
  display: inline-block; font-size: 13px; color: #d8e6c8; line-height: 1.6;
  background: rgba(70,230,13,.07); border: 1px solid rgba(70,230,13,.28);
  padding: 9px 16px; border-radius: 9px; margin-bottom: 40px;
}
.detail-cols { display: grid; grid-template-columns: 280px 1fr; gap: 56px; align-items: start; }
.detail-aside { position: sticky; top: 20px; }
.detail-meta { display: flex; flex-direction: column; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.detail-meta div { background: var(--card); padding: 16px 18px; }
.detail-meta b {
  display: block; font-size: 9px; letter-spacing: .26em;
  color: var(--fg-faint); margin-bottom: 7px; font-weight: 400;
}
.detail-meta span { font-size: 13px; line-height: 1.65; }
.detail-main { min-width: 0; }
.detail-para {
  font-size: 15.5px; line-height: 2.15; color: #ccd2c4;
  margin-bottom: 26px;
}
.detail-para:first-of-type { font-size: 17.5px; color: var(--fg); }

/* 媒体区 */
.detail-video {
  margin: 0 0 44px; border-radius: 14px; overflow: hidden;
  border: 1px solid var(--line); background: #000;
}
.detail-video video { width: 100%; display: block; }
.detail-video.ratio-16x9 { aspect-ratio: 16/9; }
.detail-video.ratio-16x9 iframe { width: 100%; height: 100%; display: block; }
.video-note {
  font-size: 11px; letter-spacing: .06em; color: var(--fg-faint);
  padding: 10px 16px; background: var(--card);
}

/* ---- 预览优先播放器：先放本地预览，播完再显示 YouTube 入口 ---- */
.vblock { margin: 0 0 30px; }
.vblock-label {
  display: flex; align-items: center; gap: 10px;
  font-size: 10px; letter-spacing: .28em; color: var(--fg-dim);
  margin-bottom: 10px; text-transform: uppercase;
}
.vblock-label::before { content: ""; width: 22px; height: 1px; background: var(--accent); }
.vstage {
  position: relative; aspect-ratio: 16/9; background: #000;
  border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
}
.vstage video, .vstage iframe {
  position: absolute; inset: 0; width: 100%; height: 100%;
  display: block; border: 0; object-fit: cover;
}
/* 预览进度条 */
.vbar {
  position: absolute; left: 0; bottom: 0; height: 3px; width: 0%;
  background: var(--accent); transition: width .25s linear; z-index: 3;
}
/* 手动播放按钮（autoplay 被浏览器拦截时出现） */
.vplay {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  z-index: 3; width: 66px; height: 66px; border-radius: 50%;
  background: rgba(70,230,13,.92); color: #0a0f06; border: 0;
  font-size: 22px; cursor: pointer; display: none;
  align-items: center; justify-content: center; padding-left: 4px;
  transition: transform .2s ease;
}
.vplay.on { display: flex; }
.vplay:hover { transform: translate(-50%, -50%) scale(1.08); }
/* 预览角标 */
.vtag {
  position: absolute; top: 12px; left: 14px; z-index: 3;
  font-size: 9px; letter-spacing: .2em; color: rgba(244,246,240,.9);
  background: rgba(10,11,9,.6); backdrop-filter: blur(6px);
  padding: 5px 9px; border-radius: 5px;
}
/* 播完后的 YouTube 入口层 */
.vgate {
  position: absolute; inset: 0; z-index: 4;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; text-align: center; padding: 20px;
  background: rgba(8,9,7,.82); backdrop-filter: blur(8px);
  opacity: 0; pointer-events: none; transition: opacity .45s ease;
}
.vgate.on { opacity: 1; pointer-events: auto; }
.vgate p { font-size: 11px; letter-spacing: .16em; color: var(--fg-dim); }
.vgate-btn {
  display: inline-flex; align-items: center; gap: 9px;
  background: var(--accent); color: #0a0f06; font-weight: 700;
  font-size: 13px; letter-spacing: .04em; font-family: inherit;
  border: 0; border-radius: 99px; padding: 12px 26px; cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease;
}
.vgate-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 28px -8px rgba(70,230,13,.5); }
.vgate-replay {
  background: none; border: 1px solid var(--line); color: var(--fg-dim);
  font-size: 10px; letter-spacing: .14em; font-family: inherit;
  border-radius: 99px; padding: 7px 16px; cursor: pointer; transition: all .2s;
}
.vgate-replay:hover { border-color: var(--fg-dim); color: var(--fg); }

/* 图文结合行 */
.row-block {
  display: grid; grid-template-columns: 1.15fr 1fr; gap: 28px;
  align-items: center; margin-bottom: 26px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: 14px; padding: 22px;
}
.row-block.flip { grid-template-columns: 1fr 1.15fr; }
.row-block.flip img { order: 2; }
.row-block img {
  width: 100%; border-radius: 10px; border: 1px solid var(--line); cursor: zoom-in;
}
.row-text h4 {
  font-size: 16px; margin-bottom: 12px; color: var(--accent); letter-spacing: .04em;
}
.row-text p { font-size: 13.5px; line-height: 2.05; color: var(--fg-dim); }
@media (max-width: 780px) {
  .row-block, .row-block.flip { grid-template-columns: 1fr; }
  .row-block.flip img { order: 0; }
}
.video-slot {
  margin: 44px 0; border: 1px dashed rgba(70,230,13,.35); border-radius: 14px;
  padding: 46px 30px; text-align: center; color: var(--fg-dim); font-size: 13px; line-height: 2;
  background: rgba(70,230,13,.03);
}
.video-slot b { display: block; font-size: 15px; color: var(--fg); margin-bottom: 8px; }
.video-slot code {
  background: rgba(242,244,239,.08); padding: 2px 8px; border-radius: 4px;
  font-size: 12px; color: var(--accent); font-family: var(--mono);
}

/* 分组标题 */
.media-label {
  display: flex; align-items: center; gap: 14px;
  font-size: 10px; letter-spacing: .34em; color: var(--fg-dim);
  margin: 52px 0 20px; text-transform: uppercase;
}
.media-label::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* 胶片条（视频截帧） */
.filmstrip {
  display: flex; gap: 10px; overflow-x: auto; padding-bottom: 12px;
  scroll-snap-type: x mandatory;
}
.filmstrip img {
  height: 168px; width: auto; border-radius: 9px; border: 1px solid var(--line);
  scroll-snap-align: start; cursor: zoom-in; transition: transform .3s, border-color .3s;
  flex: 0 0 auto;
}
.filmstrip img:hover { transform: translateY(-4px); border-color: var(--accent-dim); }

/* 瀑布流画廊 */
.masonry { columns: 2 360px; column-gap: 18px; }
.masonry img {
  width: 100%; margin-bottom: 18px; border-radius: 12px;
  border: 1px solid var(--line); cursor: zoom-in;
  transition: transform .3s, border-color .3s;
  break-inside: avoid;
}
.masonry img:hover { transform: scale(1.012); border-color: var(--accent-dim); }
.masonry.single { columns: 1; }

.detail-link {
  display: inline-block; margin-top: 42px; font-size: 14px; letter-spacing: .06em;
  color: var(--accent); border: 1px solid rgba(70,230,13,.4);
  padding: 13px 30px; border-radius: 99px; transition: all .2s;
}
.detail-link:hover { background: var(--accent); color: #0a0f06; }

/* ============ 灯箱 ============ */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(5,6,4,.94);
  display: flex; align-items: center; justify-content: center;
  padding: 4vh 4vw; cursor: zoom-out; animation: fadeIn .2s ease;
}
.lightbox[hidden] { display: none; }
.lightbox img {
  max-width: 100%; max-height: 100%; border-radius: 10px;
  box-shadow: 0 30px 120px rgba(0,0,0,.6);
}

/* ============ 响应式 ============ */
@media (max-width: 1100px) {
  .card, .card--wide { grid-column: span 6; }
  .about-cols { grid-template-columns: 1fr; gap: 14px; }
  .detail-cols { grid-template-columns: 1fr; gap: 8px; }
  .detail-aside { position: static; margin-bottom: 30px; }
  .detail-meta { flex-direction: row; flex-wrap: wrap; }
  .detail-meta div { flex: 1 1 45%; }
}
@media (max-width: 680px) {
  .nav { padding: 16px 20px; }
  .nav-links { gap: 16px; }
  .nav-links a em { display: none; }
  .section { padding: 84px 20px 20px; }
  .grid { gap: 18px; }
  .card, .card--wide { grid-column: span 6; }
  .hero { padding: 0 20px; }
  .hero-scroll { left: 20px; }
  .hero-stats { gap: 30px; }
  .timeline li { grid-template-columns: 1fr; gap: 4px; }
  .filmstrip img { height: 120px; }
}