/* =========================================================================
   智梦动漫 · AI 作品集   —— 样式表
   设计方向：末世工业「制作档案」——冷灰蓝底 + 冷青/暖橙双强调，
   宋体大标题 + 等宽字元数据标签 + 发丝线编辑网格，非对称错位排版。
   ========================================================================= */

/* ───────── 0 · 设计令牌 ───────── */
:root{
  --bg:#080A0C;
  --bg-1:#0B0F12;
  --bg-2:#10151A;
  --bg-3:#151B21;
  --line:rgba(226,238,245,.10);
  --line-2:rgba(226,238,245,.20);
  --ink:#EAF1F5;
  --ink-2:#98A6B2;
  --ink-3:#5C6874;
  --ice:#54D6E6;
  --ice-12:rgba(84,214,230,.12);
  --amber:#E8873F;
  --paper:#EEF1F3;
  --paper-ink:#0E1317;

  --font-display:"Source Han Serif SC","Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --font-sans:"HarmonyOS Sans SC","MiSans","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","Cascadia Mono","Consolas","DejaVu Sans Mono",monospace;

  --wrap:1420px;
  --gut:clamp(20px,4vw,58px);
  --sec-y:clamp(70px,9vw,134px);
  --ease:cubic-bezier(.2,.7,.2,1);
  --d:0s;   /* 入场动画错位延迟，由行内 style 覆盖 */
}

/* ───────── 1 · 基础 ───────── */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html:focus-within{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-sans);font-size:16px;line-height:1.75;
  font-weight:350;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img,video,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,dl,dd,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse;width:100%}
::selection{background:var(--ice);color:#04161A}
:focus-visible{outline:2px solid var(--ice);outline-offset:3px}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gut)}
section[id],main[id]{scroll-margin-top:78px}
.skip-link{position:absolute;left:-9999px;top:0;z-index:9999;background:var(--ice);color:#04161A;padding:12px 20px}
.skip-link:focus{left:12px;top:12px}

/* 胶片颗粒 */
.grain{
  position:fixed;inset:0;z-index:9000;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}
/* 阅读进度条 */
.progress{position:fixed;top:0;left:0;right:0;height:2px;z-index:850;background:transparent}
.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--ice),var(--amber))}

/* ───────── 2 · 顶栏 ───────── */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:800;
  border-bottom:1px solid transparent;transition:background .4s var(--ease),border-color .4s var(--ease),backdrop-filter .4s;
}
.topbar.is-stuck{background:rgba(8,10,12,.82);backdrop-filter:blur(14px) saturate(1.3);border-bottom-color:var(--line)}
.topbar__inner{display:flex;align-items:center;gap:clamp(14px,2.4vw,40px);height:68px}

.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__mark{width:26px;height:26px;color:var(--ice);flex:0 0 auto}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__text b{font-size:15.5px;font-weight:600;letter-spacing:.14em}
.brand__text i{font-family:var(--font-mono);font-style:normal;font-size:9px;letter-spacing:.22em;color:var(--ink-3)}

.nav{display:flex;align-items:center;gap:clamp(10px,1.6vw,26px);margin-left:auto}
.nav a{display:flex;align-items:baseline;gap:6px;padding:6px 2px;position:relative;color:var(--ink-2);transition:color .3s}
.nav a b{font-family:var(--font-mono);font-size:9.5px;font-weight:400;color:var(--ink-3);transition:color .3s}
.nav a span{font-size:13.5px;letter-spacing:.06em}
.nav a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--ice);transform:scaleX(0);transform-origin:left;transition:transform .4s var(--ease)}
.nav a:hover,.nav a.is-active{color:var(--ink)}
.nav a:hover b,.nav a.is-active b{color:var(--ice)}
.nav a:hover::after,.nav a.is-active::after{transform:scaleX(1)}

.topbar__cta{flex:0 0 auto}
.burger{display:none;width:40px;height:34px;position:relative;margin-left:auto}
.burger span{position:absolute;left:8px;right:8px;height:1.5px;background:var(--ink);transition:transform .35s var(--ease),opacity .3s}
.burger span:first-child{top:13px}
.burger span:last-child{bottom:13px}
.burger.is-open span:first-child{transform:translateY(4px) rotate(45deg)}
.burger.is-open span:last-child{transform:translateY(-4px) rotate(-45deg)}

/* ───────── 3 · 按钮 ───────── */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  padding:12px 20px;border:1px solid var(--line-2);border-radius:2px;
  transition:background .35s var(--ease),color .35s var(--ease),border-color .35s var(--ease),transform .35s var(--ease);
}
.btn svg{width:15px;height:15px;transition:transform .35s var(--ease)}
.btn:hover{transform:translateY(-2px)}
.btn:hover svg{transform:translateX(3px)}
.btn--solid{background:var(--ice);border-color:var(--ice);color:#04161A;font-weight:600}
.btn--solid:hover{background:#7BE3EF;border-color:#7BE3EF}
.btn--line{color:var(--ink);border-color:var(--line-2)}
.btn--line:hover{border-color:var(--ice);color:var(--ice)}

/* ───────── 4 · 首屏 ───────── */
.hero{
  position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:flex-end;
  padding-top:68px;overflow:hidden;isolation:isolate;
}
.hero__bg{position:absolute;inset:0;z-index:-2}
.hero__slide{position:absolute;inset:0;opacity:0;transition:opacity 1.8s var(--ease)}
.hero__slide.is-active{opacity:1}
.hero__slide img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);transition:transform 14s linear}
.hero__slide.is-active img{transform:scale(1)}
.hero__scrim{
  position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(8,10,12,.90) 0%,rgba(8,10,12,.30) 32%,rgba(8,10,12,.62) 72%,rgba(8,10,12,.97) 100%),
    linear-gradient(90deg,rgba(8,10,12,.92) 0%,rgba(8,10,12,.22) 56%,rgba(8,10,12,.68) 100%);
}
.hero__inner{
  position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;
  align-items:end;gap:clamp(28px,4vw,64px);padding-bottom:clamp(40px,6vw,76px);
}
.hero__eyebrow{
  display:flex;align-items:center;gap:10px;margin-bottom:22px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--ice);
}
.hero__eyebrow .dot{width:6px;height:6px;background:var(--amber);border-radius:50%;box-shadow:0 0 0 4px rgba(232,135,63,.16)}
.hero__title{display:flex;align-items:baseline;gap:clamp(12px,1.6vw,26px);flex-wrap:wrap;line-height:1}
.hero__title-lat{
  font-family:var(--font-mono);font-weight:200;color:var(--ice);
  font-size:clamp(64px,11vw,168px);letter-spacing:-.05em;
}
.hero__title-cn{
  font-family:var(--font-display);font-weight:600;
  font-size:clamp(44px,7.6vw,116px);letter-spacing:.06em;
}
.hero__sub{margin-top:14px;font-family:var(--font-mono);font-size:11px;letter-spacing:.34em;color:var(--ink-3)}
.hero__lead{max-width:56ch;margin-top:22px;color:var(--ink-2);font-size:clamp(14.5px,1.05vw,16.5px);line-height:1.85}
.hero__acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

.hero__meta{
  display:grid;grid-template-columns:repeat(2,minmax(104px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:2px;overflow:hidden;
}
.hero__meta .hm{padding:15px 17px;background:rgba(8,10,12,.55);backdrop-filter:blur(8px)}
.hero__meta dt{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.18em;color:var(--ink-3);text-transform:uppercase}
.hero__meta dd{font-family:var(--font-mono);font-size:19px;color:var(--ink);margin-top:3px}

.hero__foot{position:relative;border-top:1px solid var(--line);background:rgba(8,10,12,.42);backdrop-filter:blur(6px)}
.hero__foot-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:52px;font-family:var(--font-mono);font-size:10px;letter-spacing:.2em;color:var(--ink-3);text-transform:uppercase}
.hero__hint{display:flex;align-items:center;gap:9px}
.hero__hint::before{content:"";width:1px;height:22px;background:linear-gradient(180deg,var(--ice),transparent);animation:drop 2.4s var(--ease) infinite}
@keyframes drop{0%{transform:translateY(-6px);opacity:0}40%{opacity:1}100%{transform:translateY(6px);opacity:0}}
.hero__dots{display:flex;gap:7px}
.hero__dots li{width:22px;height:2px;background:var(--line-2);overflow:hidden}
.hero__dots li i{display:block;height:100%;width:0;background:var(--ice);transition:width .4s linear}
.hero__dots li.is-on i{width:100%}

/* ───────── 5 · 滚动字幕 ───────── */
.ticker{overflow:hidden;border-block:1px solid var(--line);background:var(--bg-1);padding:13px 0}
.ticker__track{display:flex;gap:0;width:max-content;animation:marquee 44s linear infinite}
.ticker:hover .ticker__track{animation-play-state:paused}
.ticker__track span{
  display:flex;align-items:center;gap:22px;padding-right:22px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;color:var(--ink-3);text-transform:uppercase;white-space:nowrap;
}
.ticker__track span::after{content:"";width:5px;height:5px;background:var(--amber);transform:rotate(45deg);flex:0 0 auto}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ───────── 6 · 区块与标题 ───────── */
.sec{padding-block:var(--sec-y)}
.sec--tight{padding-block:clamp(34px,4vw,58px)}
.sec--alt{background:linear-gradient(180deg,var(--bg) 0%,var(--bg-1) 12%,var(--bg-1) 88%,var(--bg) 100%)}
.sec-head{
  display:grid;grid-template-columns:auto minmax(0,1fr) minmax(0,1.05fr);
  gap:clamp(16px,3vw,56px);align-items:end;
  padding-bottom:22px;border-bottom:1px solid var(--line-2);margin-bottom:clamp(30px,4.6vw,62px);
}
.sec-num{
  font-family:var(--font-mono);font-size:clamp(38px,4.6vw,64px);line-height:.82;
  color:var(--ink-3);opacity:.5;
}
@supports (-webkit-text-stroke:1px #000){
  .sec-num{color:transparent;-webkit-text-stroke:1px rgba(226,238,245,.30);opacity:1}
}
.sec-title{font-family:var(--font-display);font-weight:600;font-size:clamp(24px,2.7vw,38px);letter-spacing:.04em;line-height:1.2}
.sec-en{margin-top:7px;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.26em;color:var(--ice);text-transform:uppercase}
.sec-desc{color:var(--ink-2);font-size:14.5px;line-height:1.85;max-width:62ch}

/* ───────── 7 · 数据 ───────── */
.stats{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.stat{padding:clamp(18px,2.4vw,30px) clamp(16px,2vw,26px);background:var(--bg-1)}
.stat__v{display:block;font-family:var(--font-mono);font-weight:400;font-size:clamp(28px,3.2vw,46px);line-height:1;color:var(--ink)}
.stat__v em{font-style:normal;color:var(--ice);font-size:.62em;margin-left:2px}
.stat__k{display:block;margin-top:12px;font-size:13.5px;color:var(--ink-2)}
.stat__n{display:block;margin-top:5px;font-family:var(--font-mono);font-size:10px;letter-spacing:.1em;color:var(--ink-3)}

/* ───────── 8 · 作品 ───────── */
.works{display:grid;gap:clamp(22px,3vw,44px)}
.works__half{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(22px,3vw,44px)}

.work{border:1px solid var(--line);background:var(--bg-1);border-radius:2px;overflow:hidden;transition:border-color .5s var(--ease)}
.work:hover{border-color:var(--line-2)}
.work--feature{display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,1fr)}
.work--feature .work__media{aspect-ratio:16/9;border-right:1px solid var(--line)}
.work--half .work__media{aspect-ratio:16/9;border-bottom:1px solid var(--line)}

.work__media{position:relative;overflow:hidden;background:var(--bg-2)}
.work__media img{width:100%;height:100%;object-fit:cover;transition:transform 1.3s var(--ease),filter .6s var(--ease);filter:saturate(.92)}
.work:hover .work__media img{transform:scale(1.045);filter:saturate(1.05)}
.work__media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,10,12,.44) 0%,transparent 34%,rgba(8,10,12,.72) 100%);pointer-events:none}
.work__idx{
  position:absolute;top:16px;left:18px;z-index:2;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;color:rgba(255,255,255,.86);
  padding:5px 9px;border:1px solid rgba(255,255,255,.26);background:rgba(8,10,12,.4);backdrop-filter:blur(6px);
}
.work__status{
  position:absolute;top:16px;right:18px;z-index:2;
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  padding:5px 10px;background:rgba(8,10,12,.55);backdrop-filter:blur(6px);border:1px solid var(--line-2);
}
.work__status::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--ink-3)}
.work__status[data-tone="done"]{color:var(--ice)}
.work__status[data-tone="done"]::before{background:var(--ice);box-shadow:0 0 0 3px rgba(84,214,230,.18)}
.work__status[data-tone="wip"]{color:var(--amber)}
.work__status[data-tone="wip"]::before{background:var(--amber);box-shadow:0 0 0 3px rgba(232,135,63,.18)}
.work__cover-note{
  position:absolute;left:18px;bottom:16px;z-index:2;
  font-family:var(--font-mono);font-size:10px;letter-spacing:.16em;color:rgba(255,255,255,.7);text-transform:uppercase;
}
.work__body{padding:clamp(22px,2.6vw,38px);display:flex;flex-direction:column}
.work__title{font-family:var(--font-display);font-weight:600;font-size:clamp(26px,3vw,42px);line-height:1.16;letter-spacing:.04em}
.work--half .work__title{font-size:clamp(23px,2.2vw,31px)}
.work__sub{margin-top:8px;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.2em;color:var(--ink-3);text-transform:uppercase}
.work__logline{margin-top:18px;font-family:var(--font-display);font-size:clamp(16px,1.4vw,20px);line-height:1.72;color:var(--ice)}
.work__summary{margin-top:14px;color:var(--ink-2);font-size:14.5px;line-height:1.85}
.work__tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tag{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;color:var(--ink-2);border:1px solid var(--line);padding:4px 10px;text-transform:uppercase}
.work__specs{margin-top:24px;border-top:1px solid var(--line);padding-top:6px}
.work__specs div{display:grid;grid-template-columns:78px minmax(0,1fr);gap:14px;padding:10px 0;border-bottom:1px solid var(--line);font-size:13.5px}
.work__specs dt{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;color:var(--ink-3);text-transform:uppercase;padding-top:3px}
.work__specs dd{color:var(--ink-2)}
.work__metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);margin-top:26px}
.work--feature .work__metrics{margin-top:auto}
.work--half .work__metrics{grid-template-columns:repeat(3,minmax(0,1fr))}
.work__metrics div{background:var(--bg-1);padding:14px 12px;text-align:left}
.work__metrics b{display:block;font-family:var(--font-mono);font-size:19px;font-weight:400;color:var(--ink)}
.work__metrics i{display:block;font-style:normal;font-family:var(--font-mono);font-size:9.5px;letter-spacing:.12em;color:var(--ink-3);margin-top:3px}

/* ───────── 9 · 制作档案 ───────── */
.dossier{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:clamp(20px,3vw,44px);align-items:start}
.player{position:relative;aspect-ratio:16/9;background:#000;border:1px solid var(--line-2);overflow:hidden}
.player video{width:100%;height:100%;object-fit:cover;background:#000}
.player__cover{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;
  background:linear-gradient(180deg,rgba(8,10,12,.24),rgba(8,10,12,.72));
  transition:opacity .5s var(--ease),visibility .5s;
}
.player__cover.is-hidden{opacity:0;visibility:hidden;pointer-events:none}
.player__ring{
  width:74px;height:74px;border-radius:50%;border:1px solid rgba(255,255,255,.5);
  display:grid;place-items:center;color:#fff;transition:transform .5s var(--ease),background .4s,border-color .4s;
  backdrop-filter:blur(4px);background:rgba(8,10,12,.28);
}
.player__ring svg{width:26px;height:26px;margin-left:3px}
.player__cover:hover .player__ring{transform:scale(1.08);background:var(--ice);border-color:var(--ice);color:#04161A}
.player__label{text-align:center;font-family:var(--font-mono)}
.player__label b{display:block;font-size:12px;letter-spacing:.2em;color:#fff}
.player__label i{display:block;font-style:normal;font-size:9.5px;letter-spacing:.2em;color:rgba(255,255,255,.62);margin-top:5px}
.player__badge{
  position:absolute;left:14px;bottom:12px;z-index:3;font-family:var(--font-mono);font-size:9px;letter-spacing:.18em;
  color:rgba(255,255,255,.72);padding:3px 7px;border:1px solid rgba(255,255,255,.22);background:rgba(8,10,12,.42);
}
.cap{margin-top:12px;font-family:var(--font-mono);font-size:11px;letter-spacing:.04em;color:var(--ink-3);line-height:1.9}

.kv{border-top:1px solid var(--line)}
.kv div{display:grid;grid-template-columns:84px minmax(0,1fr);gap:16px;padding:13px 0;border-bottom:1px solid var(--line)}
.kv dt{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;color:var(--ink-3);text-transform:uppercase;padding-top:4px}
.kv dd{font-size:14px;color:var(--ink-2)}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.chips span{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;color:var(--ink-2);
  border:1px solid var(--line);border-radius:2px;padding:6px 11px;background:rgba(226,238,245,.02);
}

.panel{border:1px solid var(--line);background:var(--bg-1);padding:clamp(18px,2.4vw,30px);margin-top:clamp(24px,3.4vw,44px);border-radius:2px}
.panel__title{display:flex;align-items:baseline;gap:12px;font-family:var(--font-display);font-size:19px;font-weight:600;letter-spacing:.05em;margin-bottom:18px}
.panel__title span{font-family:var(--font-mono);font-size:10px;letter-spacing:.24em;color:var(--ice);font-weight:400}
.panel__title .hint{margin-left:auto;font-style:normal;font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;color:var(--ink-3)}
.table-scroll{overflow-x:auto}
.ep th{
  text-align:left;font-family:var(--font-mono);font-size:9.5px;font-weight:400;letter-spacing:.18em;
  color:var(--ink-3);text-transform:uppercase;padding:0 16px 12px 0;border-bottom:1px solid var(--line-2);white-space:nowrap;
}
.ep td{padding:14px 16px 14px 0;border-bottom:1px solid var(--line);font-size:13.5px;color:var(--ink-2);vertical-align:top}
.ep tr:last-child td{border-bottom:0}
.ep tbody tr{transition:background .3s}
.ep tbody tr:hover{background:rgba(84,214,230,.045)}
.ep td:first-child{font-family:var(--font-mono);color:var(--ice);width:52px}
.ep td:nth-child(2){font-family:var(--font-display);font-size:16px;color:var(--ink);white-space:nowrap}
.ep td.num{font-family:var(--font-mono);font-size:12px;white-space:nowrap}

.duo{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(18px,2.4vw,34px);margin-top:clamp(24px,3.4vw,44px)}
.note-card{border:1px solid var(--line);border-left:2px solid var(--amber);background:var(--bg-1);padding:clamp(20px,2.2vw,28px)}
.note-card h3{font-family:var(--font-display);font-size:18px;font-weight:600;letter-spacing:.04em}
.note-card p{margin-top:12px;color:var(--ink-2);font-size:14px;line-height:1.9}

.strip-block{margin-top:clamp(28px,4vw,60px)}
.strip{display:flex;gap:14px;overflow-x:auto;padding:4px 0 16px;scroll-snap-type:x proximity;scrollbar-width:thin}
.strip::-webkit-scrollbar{height:6px}
.strip::-webkit-scrollbar-track{background:var(--line)}
.strip::-webkit-scrollbar-thumb{background:var(--line-2)}
.strip button{flex:0 0 clamp(210px,25vw,352px);aspect-ratio:16/9;position:relative;overflow:hidden;border:1px solid var(--line);scroll-snap-align:start;background:var(--bg-2)}
.strip img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--ease),filter .5s}
.strip button:hover img{transform:scale(1.06);filter:brightness(1.12)}
.strip span{
  position:absolute;left:10px;bottom:10px;font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;
  color:#fff;background:rgba(8,10,12,.62);padding:3px 8px;backdrop-filter:blur(4px);
}

/* ───────── 10 · 资料库 ───────── */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:clamp(22px,3vw,36px)}
.filters button{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  padding:9px 15px;border:1px solid var(--line);color:var(--ink-2);border-radius:2px;
  transition:color .3s,border-color .3s,background .3s;
}
.filters button:hover{color:var(--ink);border-color:var(--line-2)}
.filters button.is-on{color:#04161A;background:var(--ice);border-color:var(--ice);font-weight:600}
.filters button b{font-weight:400;opacity:.62;margin-left:6px}

.grid-lib{columns:4;column-gap:clamp(12px,1.5vw,20px)}
.card{
  break-inside:avoid;margin-bottom:clamp(12px,1.5vw,20px);border:1px solid var(--line);
  background:var(--bg-1);border-radius:2px;overflow:hidden;display:block;width:100%;text-align:left;
  transition:border-color .4s var(--ease),transform .5s var(--ease);position:relative;
}
.card:hover{border-color:var(--line-2);transform:translateY(-3px)}
.card__fig{display:block;position:relative;overflow:hidden;background:#fff}
.card__fig img{width:100%;transition:transform 1.1s var(--ease),filter .5s var(--ease)}
.card:hover .card__fig img{transform:scale(1.045)}
.card__cap{display:block;padding:14px 16px 16px;border-top:1px solid var(--line)}
.card__cap b{display:block;font-family:var(--font-display);font-size:16px;font-weight:600;letter-spacing:.04em}
.card__cap i{display:block;font-style:normal;font-family:var(--font-mono);font-size:9.5px;letter-spacing:.14em;color:var(--ice);margin-top:5px;text-transform:uppercase}
.card__cap p{margin-top:8px;font-size:12.5px;line-height:1.75;color:var(--ink-2)}
.card__fig img{display:block}
.card__fig[data-fit="cover"]{background:var(--bg-2)}
.card__fig[data-fit="cover"] img{object-fit:cover}
.card__fig[data-fit="contain"]{background:#fff}
.card__fig[data-fit="contain"] img{object-fit:contain}
.card__zoom{
  position:absolute;top:10px;right:10px;z-index:2;width:30px;height:30px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.28);background:rgba(8,10,12,.5);color:#fff;opacity:0;transition:opacity .35s;
  backdrop-filter:blur(4px);
}
.card:hover .card__zoom{opacity:1}
.card__zoom svg{width:14px;height:14px}

/* ───────── 11 · 流程 ───────── */
.pipe{border-top:1px solid var(--line-2)}
.pipe__step{
  display:grid;grid-template-columns:auto minmax(0,1.6fr) minmax(0,1fr);
  gap:clamp(16px,3vw,52px);align-items:start;
  padding:clamp(20px,2.6vw,34px) 0;border-bottom:1px solid var(--line);position:relative;
  transition:background .4s var(--ease);
}
.pipe__step:hover{background:rgba(226,238,245,.02)}
.pipe__no{font-family:var(--font-mono);font-size:clamp(22px,2.4vw,34px);line-height:1;color:var(--ice);letter-spacing:.02em}
.pipe__body h3{font-family:var(--font-display);font-size:clamp(18px,1.9vw,25px);font-weight:600;letter-spacing:.04em}
.pipe__body p{margin-top:11px;color:var(--ink-2);font-size:14px;line-height:1.9;max-width:66ch}
.pipe__tools{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;color:var(--ink-3);line-height:2;text-align:right}

/* ───────── 12 · 关于 ───────── */
.about{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,1fr);gap:clamp(28px,5vw,76px)}
.about__lead{font-family:var(--font-display);font-size:clamp(20px,2.1vw,29px);line-height:1.62;color:var(--ink);letter-spacing:.03em}
.about__text p+p{margin-top:17px;color:var(--ink-2);font-size:14.5px;line-height:1.95}
.about__text .about__lead+p{margin-top:24px}

.caps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);align-content:start}
.cap{background:var(--bg-1);padding:clamp(16px,2vw,24px);transition:background .4s}
.cap:hover{background:var(--bg-2)}
.cap em{display:block;font-family:var(--font-mono);font-style:normal;font-size:9.5px;letter-spacing:.22em;color:var(--ice)}
.cap h3{margin-top:8px;font-family:var(--font-display);font-size:17px;font-weight:600;letter-spacing:.04em}
.cap ul{margin-top:12px}
.cap li{position:relative;padding-left:13px;font-size:12.5px;line-height:2;color:var(--ink-2)}
.cap li::before{content:"";position:absolute;left:0;top:12px;width:4px;height:4px;background:var(--amber);transform:rotate(45deg)}

/* ───────── 13 · 联系 ───────── */
.sec--contact{background:linear-gradient(180deg,var(--bg) 0%,#0A0E12 40%,#0A0E12 100%)}
.contact{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.contact a,.contact div{background:var(--bg-1);padding:clamp(20px,2.4vw,30px);display:flex;flex-direction:column;gap:9px;transition:background .4s}
.contact a:hover{background:var(--bg-2)}
.contact dt{font-family:var(--font-mono);font-size:9.5px;letter-spacing:.2em;color:var(--ink-3);text-transform:uppercase}
.contact dd{font-size:15px;color:var(--ink);line-height:1.7;word-break:break-word}
.contact a dd{color:var(--ice)}
.contact-note{margin-top:20px;font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--ink-3);line-height:2}

/* ───────── 14 · 页脚 ───────── */
.footer{border-top:1px solid var(--line);background:var(--bg-1);padding:clamp(34px,5vw,66px) 0 clamp(28px,4vw,44px)}
.footer__inner{display:grid;grid-template-columns:auto minmax(0,1fr);gap:clamp(18px,3vw,52px);align-items:start}
.footer__brand b{display:block;font-family:var(--font-display);font-size:20px;font-weight:600;letter-spacing:.16em}
.footer__brand i{display:block;margin-top:7px;font-style:normal;font-family:var(--font-mono);font-size:9px;letter-spacing:.2em;color:var(--ink-3)}
.footer__note{color:var(--ink-3);font-size:12px;line-height:1.9;max-width:74ch}
.footer__copy{grid-column:1/-1;padding-top:22px;margin-top:8px;border-top:1px solid var(--line);font-family:var(--font-mono);font-size:10px;letter-spacing:.12em;color:var(--ink-3)}

/* ───────── 15 · 灯箱 ───────── */
.lightbox{
  position:fixed;inset:0;z-index:9500;display:flex;align-items:center;justify-content:center;
  background:rgba(4,6,8,.95);backdrop-filter:blur(10px);padding:clamp(16px,4vw,56px);
}
.lightbox[hidden]{display:none}
.lb__fig{max-width:100%;max-height:100%;display:flex;flex-direction:column;align-items:center;gap:14px}
.lb__fig img{max-width:min(1500px,88vw);max-height:78vh;object-fit:contain;border:1px solid var(--line-2);background:var(--bg-2)}
.lb__fig figcaption{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--ink-2);text-align:center;line-height:1.9}
.lb__close{
  position:absolute;top:clamp(14px,2.4vw,26px);right:clamp(14px,2.4vw,26px);
  width:42px;height:42px;border:1px solid var(--line-2);display:grid;place-items:center;
  font-size:14px;color:var(--ink-2);transition:color .3s,border-color .3s,transform .3s;
}
.lb__close:hover{color:var(--ice);border-color:var(--ice);transform:rotate(90deg)}
.lb__nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:48px;height:68px;border:1px solid var(--line-2);display:grid;place-items:center;color:var(--ink-2);
  transition:color .3s,border-color .3s,background .3s;
}
.lb__nav svg{width:16px;height:16px}
.lb__nav:hover{color:var(--ice);border-color:var(--ice);background:rgba(84,214,230,.06)}
.lb__nav--prev{left:clamp(10px,2vw,30px)}
.lb__nav--next{right:clamp(10px,2vw,30px)}
body.is-locked{overflow:hidden}

/* ───────── 16 · 入场动画 ───────── */
html.js [data-reveal]{opacity:0;transform:translateY(24px);transition:opacity .9s var(--ease) var(--d,0s),transform .9s var(--ease) var(--d,0s)}
html.js [data-reveal].is-in{opacity:1;transform:none}
html.js .card{opacity:0;transition:opacity .7s var(--ease),border-color .4s var(--ease),transform .5s var(--ease)}
html.js .card.is-in{opacity:1}

/* ───────── 17 · 响应式 ───────── */
@media (max-width:1180px){
  .sec-head{grid-template-columns:auto minmax(0,1fr);row-gap:16px}
  .sec-desc{grid-column:1/-1}
  .grid-lib{columns:3}
  .stats{grid-template-columns:repeat(3,minmax(0,1fr))}
  .stat:nth-child(4),.stat:nth-child(5){border-top:1px solid var(--line)}
}
@media (max-width:1080px){
  .nav{
    position:fixed;top:68px;left:0;right:0;z-index:790;flex-direction:column;align-items:stretch;gap:0;
    background:rgba(8,10,12,.98);border-bottom:1px solid var(--line);padding:8px var(--gut) 22px;
    transform:translateY(-14px);opacity:0;pointer-events:none;transition:opacity .35s var(--ease),transform .35s var(--ease);
  }
  .nav.is-open{transform:none;opacity:1;pointer-events:auto}
  .nav a{padding:15px 0;border-bottom:1px solid var(--line);font-size:15px}
  .nav a::after{display:none}
  .nav a b{font-size:11px}
  .topbar__cta{display:none}
  .burger{display:block}
  .work--feature{grid-template-columns:1fr}
  .work--feature .work__media{border-right:0;border-bottom:1px solid var(--line)}
  .dossier{grid-template-columns:1fr}
  .about{grid-template-columns:1fr}
  .hero__inner{grid-template-columns:1fr;align-items:start}
  .hero__meta{grid-template-columns:repeat(4,minmax(0,1fr))}
  .grid-lib{columns:2}
  .pipe__step{grid-template-columns:auto minmax(0,1fr);row-gap:8px}
  .pipe__tools{grid-column:2;text-align:left}
}
@media (max-width:760px){
  .works__half{grid-template-columns:1fr}
  .duo{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat:nth-child(n+3){border-top:1px solid var(--line)}
  .contact{grid-template-columns:1fr}
  .contact a,.contact div{border-bottom:1px solid var(--line)}
  .contact a:last-child,.contact div:last-child{border-bottom:0}
  .caps{grid-template-columns:1fr}
  .hero__meta{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer__inner{grid-template-columns:1fr}
  .footer__copy{grid-column:1}
  .lb__nav{width:40px;height:56px}
  .ep td:nth-child(5),.ep th:nth-child(5){display:none}
}
@media (max-width:480px){
  .grid-lib{columns:1}
  .work__metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero__title-lat{font-size:clamp(56px,20vw,84px)}
}

/* ───────── 18 · 无障碍与降级 ───────── */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html.js [data-reveal],html.js .card{opacity:1 !important;transform:none !important}
  .hero__slide img{transform:none !important}
}
@media print{
  .topbar,.progress,.grain,.ticker,.hero__foot,.lightbox,.player__cover{display:none !important}
  body{background:#fff;color:#000}
}


/* ───────── 19 · 放映厅作品切换 ───────── */
.dtabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:clamp(20px,2.6vw,36px)}
.dtabs button{
  display:flex;flex-direction:column;gap:4px;text-align:left;
  padding:11px 18px;border:1px solid var(--line);border-radius:2px;background:var(--bg-1);
  transition:border-color .35s var(--ease),background .35s var(--ease),transform .35s var(--ease);
}
.dtabs button b{font-family:var(--font-display);font-size:15px;font-weight:600;letter-spacing:.04em;color:var(--ink-2);transition:color .3s}
.dtabs button i{font-style:normal;font-family:var(--font-mono);font-size:9.5px;letter-spacing:.16em;color:var(--ink-3);text-transform:uppercase;transition:color .3s}
.dtabs button:hover{border-color:var(--line-2);transform:translateY(-2px)}
.dtabs button:hover b{color:var(--ink)}
.dtabs button.is-on{border-color:var(--ice);background:rgba(84,214,230,.07)}
.dtabs button.is-on b{color:var(--ink)}
.dtabs button.is-on i{color:var(--ice)}
@media (max-width:760px){ .dtabs{gap:8px} .dtabs button{padding:9px 13px} .dtabs button b{font-size:13.5px} }


/* ───────── 20 · 语言切换器 ───────── */
.lang{display:flex;gap:1px;border:1px solid var(--line);border-radius:2px;overflow:hidden;flex:0 0 auto}
.lang button{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;
  padding:7px 11px;color:var(--ink-3);background:var(--bg-1);
  transition:color .3s var(--ease),background .3s var(--ease);
}
.lang button:hover{color:var(--ink);background:var(--bg-2)}
.lang button.is-on{color:#04161A;background:var(--ice);font-weight:600}
@media (max-width:1080px){ .lang{margin-left:auto;margin-right:10px} }
@media (max-width:480px){ .lang button{padding:6px 8px;font-size:10px} }