:root{
  --bg:#FAF9F5; --surface:#FFFFFF; --sunken:#F3F1EA; --line:#E7E4DB; --line-strong:#D6D2C6;
  --text:#2B2A27; --text-2:#6B675E; --text-3:#9A958A;
  --accent:#C96442; --accent-hover:#B5573A; --accent-soft:#F6E9E2;
  --r-sm:8px; --r-md:10px; --r-lg:12px;
  --shadow:0 1px 2px rgba(43,42,39,.04);
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --serif:Georgia,"Times New Roman",serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:14px/1.6 var(--sans);overflow-x:hidden}
a{color:inherit;text-decoration:none}
img,video{display:block;max-width:100%}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}

/* top bar */
.top{border-bottom:1px solid transparent;background:var(--bg);position:sticky;top:0;z-index:5;transition:border-color .25s}
.top.scrolled{border-bottom-color:var(--line)}
.top .wrap{display:flex;align-items:center;gap:28px;height:56px}
.brand{font-weight:600;font-size:16px;letter-spacing:.02em}
.nav{display:flex;gap:4px;flex:1}
.nav a{padding:6px 10px;border-radius:var(--r-sm);color:var(--text-2);transition:background .15s,color .15s}
.nav a:hover{background:var(--sunken);color:var(--text)}
.nav a[aria-current]{color:var(--text);background:var(--sunken)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;padding:0 16px;border-radius:var(--r-sm);border:1px solid var(--line-strong);background:var(--surface);color:var(--text);font-weight:500;white-space:nowrap;transition:background .15s,border-color .15s,color .15s}
.btn:hover{background:var(--sunken);border-color:var(--text-3)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}
.btn.locked{background:var(--sunken);color:var(--text-2);border-style:dashed}
.btn.locked:hover{background:var(--accent-soft);border-color:var(--accent);color:var(--accent-hover)}
.btn.sm{height:30px;padding:0 12px}
.btn svg{width:14px;height:14px}

/* hero */
.hero{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:48px;align-items:center;padding:56px 0 40px}
.hero h1{font-size:34px;line-height:1.3;font-weight:600;margin:0 0 12px;letter-spacing:-.005em}
.hero .sub{color:var(--text-2);font-size:15px;margin:0 0 28px}
.hero .acts{display:flex;gap:12px;flex-wrap:wrap}
.player{position:relative;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--sunken);box-shadow:var(--shadow);aspect-ratio:16/9}
.player video,.player img{width:100%;height:100%;object-fit:cover}
.num{font-family:var(--serif)}

/* sections */
.sec{padding:40px 0}
.sec-h{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:0 0 20px}
.sec-h h2{margin:0;font-size:20px;font-weight:600}
.sec-h .meta{color:var(--text-3);font-size:13px}

/* filter */
.filters{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px;min-width:0;flex:1}
.filters::-webkit-scrollbar{display:none}
.chip{flex:none;height:32px;padding:0 12px;border-radius:var(--r-sm);border:1px solid var(--line);background:transparent;color:var(--text-2);white-space:nowrap;transition:background .15s,border-color .15s,color .15s}
.chip:hover{border-color:var(--line-strong);color:var(--text)}
.chip[aria-pressed=true]{background:var(--text);border-color:var(--text);color:var(--bg)}
.chip .n{font-family:var(--serif);margin-left:6px;opacity:.7}

/* cards */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{display:block;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);overflow:hidden;box-shadow:var(--shadow);transition:border-color .15s}
.card:hover,.card:focus-visible{border-color:var(--line-strong)}
.cover{position:relative;aspect-ratio:16/9;background:var(--sunken)}
.cover img,.cover video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cover video{opacity:0;transition:opacity .2s}
.card.playing .cover video{opacity:1}
.card .info{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 14px 11px}
.card .tt{min-width:0;display:flex;flex-direction:column;line-height:1.35}
.card .name{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.card .eid{font-family:var(--serif);font-size:12px;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.badge{display:inline-flex;align-items:center;gap:4px;height:22px;padding:0 8px;border-radius:6px;background:var(--sunken);color:var(--text-2);font-size:12px;white-space:nowrap;flex:none}
.badge.tag{border:1px solid var(--line);background:transparent}
.lock{width:14px;height:14px;color:var(--text-3);flex:none}
.card .right{display:flex;align-items:center;gap:8px;flex:none}
.card[hidden]{display:none}

/* skills */
.skills{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.skill{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);padding:16px 18px}
.skill b{font-weight:500;font-family:var(--mono);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.skill b.sans{font-family:var(--sans);font-size:14px}
.sk{display:flex;flex-direction:column;min-width:0;line-height:1.45}
.sk span{color:var(--text-3);font-size:12px}
.sk .num{font-size:13px}

/* list */
.list{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);margin:0;padding:0;list-style:none}
.list li{display:grid;grid-template-columns:96px minmax(0,1fr) auto;gap:12px;align-items:center;padding:12px 18px;border-top:1px solid var(--line)}
.list li:first-child{border-top:0}
.list time{color:var(--text-3);font-family:var(--serif)}
.list .t{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

footer{border-top:1px solid var(--line);margin-top:48px;padding:28px 0;color:var(--text-3);font-size:13px}
footer .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* detail */
.crumb{color:var(--text-3);padding:24px 0 16px;font-size:13px}
.crumb a:hover{color:var(--text)}
.detail{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:start}
.pbar{display:flex;align-items:center;gap:8px;margin-top:12px}
.detail h1{font-family:var(--serif);font-size:30px;line-height:1.2;margin:0 0 12px;font-weight:600;overflow-wrap:anywhere}
.badges{display:flex;gap:8px;flex-wrap:nowrap;overflow:hidden;margin-bottom:20px}
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0 0 20px}
.fact{border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);padding:10px 12px;min-width:0}
.fact .k{color:var(--text-3);font-size:12px}
.fact .v{font-family:var(--serif);font-size:18px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fact .v.sans{font-family:var(--sans);font-size:14px;line-height:27px}
.sub-h{font-size:15px;font-weight:600;margin:28px 0 12px}
table.props{width:100%;table-layout:fixed;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);overflow:hidden}
.props th,.props td{text-align:left;padding:8px 12px;border-top:1px solid var(--line);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:400}
.props tr:first-child th,.props tr:first-child td{border-top:0}
.props th{width:42%;font-family:var(--mono);font-size:13px}
.props td{font-family:var(--mono);font-size:13px;color:var(--text-2)}
.code-h{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:28px 0 12px}
.code-h .sub-h{margin:0;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
pre.code{margin:0;padding:14px 0;background:#F6F4EE;border:1px solid var(--line);border-radius:var(--r-md);overflow-x:auto;font:12.5px/1.65 var(--mono);color:#3A3833;tab-size:2}
pre.code .ln{display:block;padding:0 16px;white-space:pre}
pre.code .gut{display:inline-block;width:2.2em;color:var(--text-3);user-select:none}
.k-c{color:#8A8578;font-style:italic}.k-k{color:#A5502F}.k-s{color:#5F7A3E}.k-n{color:#8A6A1F}
.related{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}

/* dialog */
dialog{border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;background:var(--surface);color:var(--text);width:min(380px,calc(100vw - 32px));box-shadow:0 8px 24px rgba(43,42,39,.08)}
dialog::backdrop{background:rgba(43,42,39,.28)}
dialog h3{margin:0 0 6px;font-size:17px}
dialog p{margin:0 0 20px;color:var(--text-2)}
dialog .acts{display:flex;gap:8px;justify-content:flex-end}

@media (max-width:820px){
  .hero{grid-template-columns:1fr;gap:28px;padding:40px 0 32px}
  .hero h1{font-size:28px}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .detail{grid-template-columns:1fr}
  .related{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:560px){
  .wrap{padding:0 16px}
  .top .wrap{flex-wrap:wrap;height:auto;gap:4px 12px;padding-top:10px;padding-bottom:6px}
  .brand{order:1}.top .btn{order:2;margin-left:auto}
  .nav{order:3;flex:0 0 100%;margin-left:-10px;overflow-x:auto;scrollbar-width:none}
  .nav a{white-space:nowrap}
  .grid{grid-template-columns:1fr}
  .skills{grid-template-columns:1fr}
  .list li{grid-template-columns:1fr auto}
  .list time{grid-column:1/-1}
  .facts{grid-template-columns:repeat(2,minmax(0,1fr))}
  .detail h1{font-size:26px}
  .related{grid-template-columns:1fr 1fr;gap:12px}
}
.fact.wide{grid-column:1/-1}

/* ---- v2: filters / search / stats / motion ---- */
.bar{display:flex;align-items:center;gap:16px;margin-bottom:24px}
.search{position:relative;flex:none;width:200px;display:block}
.search svg{position:absolute;left:10px;top:50%;width:14px;height:14px;margin-top:-7px;color:var(--text-3);pointer-events:none}
.search input{width:100%;height:32px;padding:0 10px 0 30px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);color:var(--text);font:inherit;outline:none;transition:border-color .15s}
.search input:focus{border-color:var(--accent)}
.search input::placeholder{color:var(--text-3)}
.search input::-webkit-search-cancel-button{-webkit-appearance:none}
.stats{display:flex;gap:8px;flex-wrap:nowrap;margin:12px 0 0;padding:0;list-style:none;overflow:hidden}
.stats li{display:inline-flex;align-items:baseline;gap:6px;height:28px;padding:0 10px;border:1px solid var(--line);border-radius:6px;background:var(--surface);color:var(--text-2);font-size:12px;line-height:26px;white-space:nowrap}
.stats b{font-family:var(--serif);font-weight:400;font-size:14px;color:var(--text)}
.empty{display:flex;flex-direction:column;align-items:center;gap:14px;padding:56px 0;color:var(--line-strong)}
.empty svg{width:48px;height:48px}
.empty[hidden],.more[hidden]{display:none}
.more{display:flex;justify-content:center;margin-top:28px}
.idline{font-family:var(--serif);color:var(--text-3);font-size:14px;margin:-4px 0 12px}
.fname{color:var(--text-3);font-weight:400;font-family:var(--mono);font-size:12px}
.detail h1{font-family:var(--sans)}
.player .ph,.cover .ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:repeating-linear-gradient(135deg,var(--sunken) 0 10px,#EFEDE5 10px 20px)}
.player .ph[hidden]{display:none}
.player video{background:var(--sunken)}
.cover video{transition:opacity .25s}
.card{transition:border-color .2s,transform .25s cubic-bezier(.2,.7,.2,1),box-shadow .25s}
@media (hover:hover){.card:hover{transform:translateY(-3px);box-shadow:0 6px 16px rgba(43,42,39,.07)}}
.card:focus-visible{transform:translateY(-3px)}
.btn{transition:background .15s,border-color .15s,color .15s,transform .12s}
.btn:active,.chip:active{transform:scale(.97)}

/* 入场:动画结束即为最终态(fill both 只在延迟期间保持起点),不会停在透明 */
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes fade{from{opacity:0}to{opacity:1}}
.js .in{animation:rise .6s cubic-bezier(.2,.7,.2,1) backwards;animation-delay:var(--d,0ms)}
.js .pop{animation:rise .45s cubic-bezier(.2,.7,.2,1) backwards;animation-delay:var(--d,0ms)}
.js #detail.enter{animation:fade .35s ease backwards}
.js #home.enter{animation:fade .3s ease backwards}
/* 滚动入场:只给首次测量时在视口外的元素加 .rv,进入视口后移除;IO 不可用时 JS 不加 */
.js .rv{opacity:0;transform:translateY(14px)}
.js .rv.go{opacity:1;transform:none;transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0ms)}
.js .grid.swap{opacity:0;transition:opacity .12s}
.grid{transition:opacity .2s}

@media (max-width:820px){
  .hero{padding:36px 0 28px}
}
@media (max-width:560px){
  .bar{flex-direction:column-reverse;align-items:stretch;gap:12px}
  .search{width:100%}
  .search input{height:36px}
  .stats li{padding:0 8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .rv{opacity:1;transform:none}
  .card:hover{transform:none!important}
}
@media (min-width:561px){.bar{gap:12px}.filters{gap:6px}.chip{padding:0 10px}.search{width:164px}}
[hidden]{display:none!important}
.acts.dl{margin-top:16px}