/* ==========================================================================
   gatoolee.com — 「墨与朱」
   宣纸底 · 墨色字 · 一点朱红。tokens → base → 顶栏 → 首页 → 作品集 → 页脚 → 动效
   ========================================================================== */

:root{
  color-scheme: light;
  --paper:#f2eee4;
  --paper-2:#e9e3d6;
  --paper-veil:rgba(242,238,228,.78);
  --ink:#16140f;
  --ink-soft:#4a463d;
  --muted:#7d776a;
  --line:rgba(22,20,15,.12);
  --line-strong:rgba(22,20,15,.28);
  --zhu:#c4381f;           /* 朱红 */
  --zhu-soft:rgba(196,56,31,.10);
  --gold:#a8854a;
  --card:#f8f5ee;
  --grain:.07;
  --shadow:0 30px 60px -35px rgba(40,30,15,.45);

  --serif:"Songti SC","STSong","Source Han Serif SC","Noto Serif SC","Noto Serif CJK SC","SimSun",ui-serif,Georgia,serif;
  --sans:ui-sans-serif,-apple-system,"Segoe UI",system-ui,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --maxw:1240px;
  --gut:clamp(20px,4vw,48px);
  --ease:cubic-bezier(.2,.7,.1,1);
}
:root[data-theme="dark"]{
  color-scheme: dark;
  --paper:#0f0e0c;
  --paper-2:#181713;
  --paper-veil:rgba(15,14,12,.78);
  --ink:#ece5d5;
  --ink-soft:#bdb5a3;
  --muted:#857e70;
  --line:rgba(236,229,213,.10);
  --line-strong:rgba(236,229,213,.24);
  --zhu:#e2583b;
  --zhu-soft:rgba(226,88,59,.14);
  --gold:#c9a66a;
  --card:#16150f;
  --grain:.09;
  --shadow:0 30px 70px -35px rgba(0,0,0,.9);
}

/* ---------- base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font:16px/1.75 var(--sans);letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  transition:background-color .5s var(--ease),color .5s var(--ease);
  overflow-x:hidden;
}
/* 宣纸颗粒 */
body::before{
  content:"";position:fixed;inset:0;z-index:100;pointer-events:none;opacity:var(--grain);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .9 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:multiply;
}
:root[data-theme="dark"] body::before{mix-blend-mode:screen;filter:invert(1)}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
::selection{background:var(--zhu);color:#fff}
:focus-visible{outline:2px solid var(--zhu);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px;top:12px;z-index:200;background:var(--ink);color:var(--paper);padding:8px 14px;border-radius:6px}
.skip:focus{left:12px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--gut)}
.serif{font-family:var(--serif)}
.mono{font-family:var(--mono)}

/* ---------- 顶栏 ---------- */
.sitebar{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px var(--gut);
  transition:background-color .3s,border-color .3s;
  border-bottom:1px solid transparent;
}
.sitebar.is-stuck{background:var(--paper-veil);backdrop-filter:blur(14px) saturate(1.2);-webkit-backdrop-filter:blur(14px) saturate(1.2);border-bottom-color:var(--line)}
.brand{display:flex;align-items:center;gap:12px;font-weight:600;letter-spacing:.02em}
.seal{
  display:grid;place-items:center;width:34px;height:34px;border-radius:7px;
  background:var(--zhu);color:#fff;font:600 19px/1 var(--serif);
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.18),inset 0 0 0 4px var(--zhu);
  transform:rotate(-4deg);transition:transform .5s var(--ease);
}
.brand:hover .seal{transform:rotate(4deg) scale(1.06)}
.brand small{display:block;font:500 10px/1 var(--mono);letter-spacing:.18em;color:var(--muted);margin-top:4px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{position:relative;padding:8px 12px;font-size:14px;color:var(--ink-soft);transition:color .2s}
.nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:1px;background:var(--zhu);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
.nav a:hover,.nav a[aria-current="page"]{color:var(--ink)}
.nav a:hover::after,.nav a[aria-current="page"]::after{transform:scaleX(1)}
.theme{
  margin-left:6px;width:38px;height:38px;border-radius:50%;border:1px solid var(--line-strong);
  background:transparent;display:grid;place-items:center;cursor:pointer;transition:border-color .2s,transform .4s var(--ease);
}
.theme:hover{border-color:var(--zhu);transform:rotate(25deg)}
.theme svg{width:17px;height:17px}
.theme .i-moon{display:none}
:root[data-theme="dark"] .theme .i-sun{display:none}
:root[data-theme="dark"] .theme .i-moon{display:block}

/* ---------- 通用 ---------- */
.eyebrow{display:inline-flex;align-items:center;gap:10px;font:500 12px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin:0}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--zhu)}
.btn{
  display:inline-flex;align-items:center;gap:10px;height:50px;padding:0 24px;border-radius:999px;
  border:1px solid var(--line-strong);font-size:15px;font-weight:500;
  transition:background-color .25s,color .25s,border-color .25s,transform .25s var(--ease);
}
.btn svg{width:17px;height:17px;transition:transform .3s var(--ease)}
.btn:hover{border-color:var(--ink)}
.btn:hover svg{transform:translateX(4px)}
.btn--ink{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn--ink:hover{background:var(--zhu);border-color:var(--zhu);color:#fff}
.sec{padding:clamp(72px,11vw,140px) 0 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:clamp(28px,4vw,48px);padding-bottom:18px;border-bottom:1px solid var(--line)}
.sec-head h2{margin:0;font:600 clamp(30px,4.2vw,52px)/1.1 var(--serif);letter-spacing:.02em}
.sec-head h2 em{font-style:normal;color:var(--zhu)}
.sec-head .idx{font:500 12px/1 var(--mono);color:var(--muted);letter-spacing:.16em}

/* ---------- 首页 Hero ---------- */
.hero{position:relative;padding:clamp(40px,8vw,96px) 0 0}
.hero-grid{display:grid;grid-template-columns:1fr auto;gap:40px;align-items:start}
.display{
  margin:22px 0 0;font:700 clamp(56px,11.5vw,168px)/.98 var(--serif);letter-spacing:-.01em;
}
.display .ln{display:block;overflow:hidden;padding-bottom:.06em}
.display .ln > span{display:inline-block}
.display .dot{color:var(--zhu)}
.vert{
  writing-mode:vertical-rl;font:500 15px/2 var(--serif);letter-spacing:.5em;color:var(--ink-soft);
  border-left:1px solid var(--line);padding-left:16px;margin-top:30px;white-space:nowrap;
}
.vert b{color:var(--zhu);font-weight:600}
.hero-foot{display:grid;grid-template-columns:minmax(0,560px) 1fr;gap:40px;align-items:end;margin-top:clamp(28px,4vw,48px)}
.lede{margin:0;font-size:clamp(16px,1.5vw,18px);line-height:1.9;color:var(--ink-soft)}
.lede b{color:var(--ink);font-weight:600}
.actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.status{display:inline-flex;align-items:center;gap:10px;margin:22px 0 0;font:500 12px/1 var(--mono);letter-spacing:.08em;color:var(--muted)}
.status .pulse{width:8px;height:8px;border-radius:50%;background:var(--zhu);box-shadow:0 0 0 0 var(--zhu);animation:pulse 2.4s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(196,56,31,.55)}70%{box-shadow:0 0 0 10px rgba(196,56,31,0)}100%{box-shadow:0 0 0 0 rgba(196,56,31,0)}}

/* 胶片条 */
.reel{margin-top:clamp(56px,8vw,96px);display:grid;gap:14px;-webkit-mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.reel-row{display:flex;gap:14px;width:max-content;animation:reel 80s linear infinite}
.reel-row.rev{animation-direction:reverse;animation-duration:95s}
.reel:hover .reel-row{animation-play-state:paused}
.reel a{position:relative;flex:none;width:clamp(200px,22vw,300px);aspect-ratio:16/10;border-radius:10px;overflow:hidden;background:var(--paper-2)}
.reel img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease),filter .5s}
.reel a:hover img{transform:scale(1.06)}
.reel a span{position:absolute;left:10px;bottom:8px;font:600 13px/1.2 var(--serif);color:#fff;text-shadow:0 1px 8px rgba(0,0,0,.6);opacity:0;transform:translateY(6px);transition:.35s var(--ease)}
.reel a::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 50%,rgba(0,0,0,.55));opacity:0;transition:opacity .35s}
.reel a:hover::after,.reel a:hover span{opacity:1;transform:none}
.reel a span{z-index:1}
@keyframes reel{to{transform:translateX(-50%)}}

/* 数字 */
.stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:clamp(56px,8vw,96px)}
.stat{padding:28px 0 26px;display:flex;flex-direction:column;gap:6px}
.stat + .stat{border-left:1px solid var(--line);padding-left:clamp(16px,3vw,40px)}
.stat b{font:700 clamp(40px,6vw,76px)/1 var(--serif)}
.stat b sup{font-size:.35em;color:var(--zhu);margin-left:4px;vertical-align:super}
.stat span{font-size:14px;color:var(--muted)}

/* 主推 */
.feature{
  position:relative;display:block;border-radius:18px;overflow:hidden;aspect-ratio:16/8;min-height:380px;
  background:var(--ink);color:#fff;box-shadow:var(--shadow);isolation:isolate;
}
.feature img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1.4s var(--ease)}
.feature:hover img{transform:scale(1.04)}
.feature::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(10,8,5,.82) 0%,rgba(10,8,5,.45) 42%,transparent 70%);z-index:0}
.feature-copy{position:absolute;left:clamp(24px,4vw,56px);bottom:clamp(24px,4vw,52px);right:30%;z-index:1;display:flex;flex-direction:column;gap:14px}
.feature-copy .k{font:500 12px/1 var(--mono);letter-spacing:.22em;color:rgba(255,255,255,.7)}
.feature-copy strong{font:700 clamp(36px,5.5vw,72px)/1.02 var(--serif)}
.feature-copy p{margin:0;max-width:440px;color:rgba(255,255,255,.82);font-size:15px}
.feature-cta{position:absolute;right:clamp(20px,3vw,40px);bottom:clamp(20px,3vw,40px);z-index:1;width:96px;height:96px;border-radius:50%;background:var(--zhu);display:grid;place-items:center;text-align:center;font:600 14px/1.3 var(--serif);transition:transform .5s var(--ease)}
.feature:hover .feature-cta{transform:rotate(-12deg) scale(1.08)}
.feature-credit{position:absolute;top:18px;right:22px;z-index:1;font:500 11px/1 var(--mono);letter-spacing:.14em;color:rgba(255,255,255,.7)}

/* 分类 */
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
.cat{position:relative;padding:28px 22px 30px 0;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:12px;min-height:260px;transition:color .3s}
.cat + .cat{padding-left:22px;border-left:1px solid var(--line)}
.cat .n{font:500 12px/1 var(--mono);color:var(--muted);letter-spacing:.14em}
.cat h3{margin:0;font:600 clamp(24px,2.4vw,30px)/1.2 var(--serif)}
.cat p{margin:0;font-size:14px;color:var(--muted);line-height:1.7}
.cat .thumbs{margin-top:auto;display:flex}
.cat .thumbs img{width:58px;height:58px;object-fit:cover;border-radius:50%;border:3px solid var(--paper);margin-right:-14px;transition:transform .4s var(--ease)}
.cat:hover .thumbs img{transform:translateY(-4px)}
.cat:hover .thumbs img:nth-child(2){transition-delay:.04s}
.cat:hover .thumbs img:nth-child(3){transition-delay:.08s}
.cat .go{position:absolute;right:16px;top:26px;font-size:18px;color:var(--zhu);opacity:0;transform:translate(-6px,6px);transition:.35s var(--ease)}
.cat:hover .go{opacity:1;transform:none}
.cat:hover h3{color:var(--zhu)}

/* 关于 */
.about-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:clamp(32px,6vw,96px)}
.quote{margin:0;font:600 clamp(28px,3.6vw,44px)/1.4 var(--serif)}
.quote em{font-style:normal;background:linear-gradient(transparent 62%,var(--zhu-soft) 62%)}
.about-text p{margin:0 0 18px;color:var(--ink-soft);font-size:17px;line-height:1.95}
.tools{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.tools span{font:500 12px/1 var(--mono);padding:9px 12px;border:1px solid var(--line-strong);border-radius:999px;color:var(--ink-soft)}

/* 联系 */
.contact{padding:clamp(80px,12vw,160px) 0 clamp(40px,6vw,72px);text-align:center}
.contact .eyebrow{justify-content:center}
.contact-big{display:inline-block;margin-top:24px;font:700 clamp(40px,8.5vw,120px)/1.05 var(--serif);letter-spacing:-.01em;position:relative}
.contact-big .arw{display:inline-block;color:var(--zhu);transition:transform .5s var(--ease)}
.contact-big:hover .arw{transform:translate(10px,-10px) rotate(0deg)}
.contact-big::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:3px;background:var(--zhu);transform:scaleX(0);transform-origin:right;transition:transform .6s var(--ease)}
.contact-big:hover::after{transform:scaleX(1);transform-origin:left}
.contact .mail{display:block;margin-top:22px;font:500 14px/1 var(--mono);color:var(--muted);letter-spacing:.06em}

/* ---------- 作品集 ---------- */
.pagehead{padding:clamp(40px,7vw,88px) 0 clamp(28px,4vw,44px);display:grid;grid-template-columns:1fr minmax(0,420px);gap:40px;align-items:end}
.pagehead .display{font-size:clamp(52px,9vw,128px)}
.pagehead .lede{font-size:16px}
.filterbar{
  position:sticky;top:66px;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:12px 0;margin-bottom:28px;background:var(--paper-veil);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip-btn{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border-radius:999px;cursor:pointer;
  border:1px solid transparent;background:transparent;font-size:14px;color:var(--ink-soft);transition:.25s var(--ease);
}
.chip-btn .n{font:500 11px/1 var(--mono);color:var(--muted)}
.chip-btn:hover{border-color:var(--line-strong);color:var(--ink)}
.chip-btn[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.chip-btn[aria-pressed="true"] .n{color:var(--zhu)}
.count{margin:0;font:500 12px/1 var(--mono);color:var(--muted);letter-spacing:.1em}
.count b{color:var(--ink);font-size:14px}

.grid{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-flow:dense;gap:clamp(18px,2.2vw,30px)}
.card{grid-column:span 4;display:flex;flex-direction:column;gap:14px}
.card.wide{grid-column:span 8}
.card[hidden]{display:none}
.shot{position:relative;display:block;aspect-ratio:16/10;border-radius:12px;overflow:hidden;background:var(--paper-2)}
.card.wide .shot{aspect-ratio:auto;height:100%;min-height:0}
.card.wide{display:grid;grid-template-rows:1fr auto}
.shot img{width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease),filter .6s}
.card:hover .shot img{transform:scale(1.05)}
.shot .tag{position:absolute;left:12px;top:12px;font:500 11px/1 var(--sans);padding:7px 10px;border-radius:999px;background:rgba(16,14,10,.55);color:#fff;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.shot .open{
  position:absolute;right:14px;bottom:14px;width:52px;height:52px;border-radius:50%;background:var(--zhu);color:#fff;
  display:grid;place-items:center;font-size:20px;transform:scale(.4) rotate(-45deg);opacity:0;transition:.45s var(--ease);
}
.card:hover .open,.card:focus-visible .open{transform:none;opacity:1}
.card-text{display:grid;grid-template-columns:auto 1fr;column-gap:14px;row-gap:4px;align-items:baseline}
.card-text .num{grid-row:span 2;font:500 13px/1.6 var(--mono);color:var(--zhu)}
.card-text b{font:600 21px/1.3 var(--serif);transition:color .25s}
.card:hover .card-text b{color:var(--zhu)}
.card-text .en{font:500 10.5px/1.4 var(--mono);letter-spacing:.18em;color:var(--muted)}
.card-text .desc{grid-column:2;font-size:14px;line-height:1.7;color:var(--ink-soft);margin-top:4px}
.empty{text-align:center;color:var(--muted);padding:60px 0}

/* ---------- 页脚 ---------- */
.sitefoot{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  margin-top:clamp(64px,9vw,120px);padding:26px 0 34px;border-top:1px solid var(--line);
  font:500 12px/1.6 var(--mono);color:var(--muted);letter-spacing:.06em;
}
.sitefoot a:hover{color:var(--zhu)}
.sitefoot .sep{margin:0 10px;opacity:.5}

/* ---------- 404 ---------- */
.center-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px var(--gut);gap:10px}
.center-page .code{margin:0;font:700 clamp(120px,24vw,260px)/.9 var(--serif);color:transparent;-webkit-text-stroke:1.5px var(--ink);position:relative}
.center-page .code::after{content:"失";position:absolute;right:-.15em;top:.05em;font-size:.28em;color:#fff;-webkit-text-stroke:0;background:var(--zhu);width:1.3em;height:1.3em;display:grid;place-items:center;border-radius:.15em;transform:rotate(8deg)}
.center-page h1{margin:20px 0 0;font:600 30px/1.3 var(--serif)}
.center-page p{color:var(--ink-soft);max-width:420px}
.center-page .actions{justify-content:center;margin-top:14px}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:calc(var(--i,0) * 60ms)}
.js .reveal.in{opacity:1;transform:none}
.js .display .ln > span{transform:translateY(105%);animation:rise 1.1s var(--ease) forwards}
.js .display .ln:nth-child(2) > span{animation-delay:.12s}
@keyframes rise{to{transform:none}}

/* 自定义光标预览（仅精确指针设备） */
.peek{position:fixed;left:0;top:0;z-index:60;width:260px;aspect-ratio:16/10;border-radius:10px;overflow:hidden;pointer-events:none;opacity:0;transform:translate(-50%,-50%) scale(.85);transition:opacity .25s,transform .35s var(--ease);box-shadow:var(--shadow)}
.peek.on{opacity:1;transform:translate(-50%,-50%) scale(1)}
.peek img{width:100%;height:100%;object-fit:cover}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .js .reveal,.js .display .ln > span{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:980px){
  .card,.card.wide{grid-column:span 6}
  .card.wide .shot{aspect-ratio:16/10;height:auto}
  .cats{grid-template-columns:repeat(2,1fr)}
  .cat:nth-child(3){padding-left:0;border-left:0}
  .about-grid,.pagehead{grid-template-columns:1fr}
  .hero-foot{grid-template-columns:1fr}
  .actions{justify-content:flex-start}
}
@media (max-width:640px){
  .nav a{padding:8px 8px}
  .brand small{display:none}
  .vert{display:none}
  .hero-grid{grid-template-columns:1fr}
  .card,.card.wide{grid-column:span 12}
  .cats{grid-template-columns:1fr}
  .cat,.cat + .cat{padding-left:0;border-left:0;min-height:0}
  .stats{grid-template-columns:repeat(3,1fr)}
  .stat span{font-size:12px}
  .feature{aspect-ratio:3/4;min-height:0}
  .feature::after{background:linear-gradient(transparent 30%,rgba(10,8,5,.88))}
  .feature-copy{right:24px;bottom:130px}
  .feature-cta{width:84px;height:84px;left:24px;right:auto}
  .filterbar{top:62px}
}

/* ---------- 书架（扩展位） ---------- */
.shelf{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(12px,1.6vw,20px)}
.slot{position:relative;display:flex;flex-direction:column;gap:10px;min-height:220px;padding:22px;border-radius:14px;border:1px dashed var(--line-strong);color:var(--ink-soft);transition:border-color .3s,transform .4s var(--ease),background-color .3s}
.slot .n{font:500 12px/1 var(--mono);color:var(--muted);letter-spacing:.14em}
.slot h3{margin:6px 0 0;font:600 24px/1.2 var(--serif);color:var(--ink)}
.slot p{margin:0;font-size:14px;line-height:1.7}
.slot .st{margin-top:auto;font:500 11px/1 var(--mono);letter-spacing:.12em;color:var(--muted)}
.slot.live{border-style:solid;border-color:var(--ink);background:var(--card)}
.slot.live .st{color:var(--zhu)}
.slot.live:hover{transform:translateY(-4px);border-color:var(--zhu)}
.slot.live:hover h3{color:var(--zhu)}
.slot--blank h3{color:var(--muted)}
@media (max-width:980px){.shelf{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.shelf{grid-template-columns:1fr}.slot{min-height:0}}