@font-face{font-family:"WK";src:url(/assets/fonts/wk-light.woff2) format("woff2");font-weight:300;font-display:swap}
@font-face{font-family:"WK";src:url(/assets/fonts/wk-regular.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"WK";src:url(/assets/fonts/wk-medium.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"WKM";src:url(/assets/fonts/wkm-regular.woff2) format("woff2");font-weight:400;font-display:swap}

:root{
  --bg:#FAF8F5;--ink:#1D1C20;--ink2:#3B3A40;--muted:#6D6C73;--faint:#727078;
  --rule:rgba(29,28,32,.12);--nav:rgba(250,248,245,.78);--frag:rgba(29,28,32,.085);--hover:rgba(29,28,32,.035);
  --serif:"WK","LXGW WenKai","Kaiti SC","STKaiti","KaiTi",serif;
  --mono:"WKM","WK","LXGW WenKai Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --max:1120px;--pad:clamp(20px,5vw,64px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0F0F12;--ink:#ECE9E4;--ink2:#CBC7C1;--muted:#8F8B94;--faint:#84808B;
    --rule:rgba(236,233,228,.12);--nav:rgba(22,22,26,.72);--frag:rgba(236,233,228,.07);--hover:rgba(236,233,228,.045);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0F0F12;--ink:#ECE9E4;--ink2:#CBC7C1;--muted:#8F8B94;--faint:#84808B;
  --rule:rgba(236,233,228,.12);--nav:rgba(22,22,26,.72);--frag:rgba(236,233,228,.07);--hover:rgba(236,233,228,.045);
  color-scheme:dark;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:96px}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--serif);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .3s,color .3s}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
img{display:block}
:focus-visible{outline:2px solid var(--ink);outline-offset:3px;border-radius:4px}
.mono{font-family:var(--mono)}
.wrap{max-width:var(--max);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.skip{position:absolute;left:-9999px;top:8px;z-index:100;background:var(--ink);color:var(--bg);padding:8px 14px;border-radius:8px}
.skip:focus{left:16px}
.ext{margin-left:.2em;font-size:.85em;color:var(--muted)}

/* nav */
.nav-wrap{position:fixed;top:16px;left:16px;right:16px;z-index:20;display:flex;justify-content:center;pointer-events:none}
.nav{pointer-events:auto;width:100%;max-width:var(--max);height:52px;display:flex;align-items:center;justify-content:space-between;padding:0 22px;border:1px solid var(--rule);border-radius:999px;background:var(--nav);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%)}
.brand{font-size:16px;letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:26px;font-size:15px;color:var(--ink2)}
.nav-links a,.nav-btn{position:relative;padding:4px 0}
.nav-links a::after,.nav-btn::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav-links a:hover::after,.nav-btn:hover::after{transform:scaleX(1)}
.theme-toggle{width:30px;height:30px;display:grid;place-items:center;color:var(--ink2);border-radius:50%}
.theme-toggle svg{display:block}
.theme-toggle:hover{background:var(--hover)}
.theme-toggle .i-sun{display:none}
:root[data-theme="dark"] .i-sun{display:inline}:root[data-theme="dark"] .i-moon{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .i-sun{display:inline}:root:not([data-theme="light"]) .i-moon{display:none}}

/* hero */
.hero{position:relative;min-height:100vh;min-height:100svh;overflow:hidden;display:flex}
.drift{position:absolute;inset:0;pointer-events:none;user-select:none}
.frag{position:absolute;white-space:nowrap;color:var(--frag);font-family:var(--mono);letter-spacing:.04em;animation:drift var(--dur,26s) ease-in-out var(--delay,0s) infinite alternate;will-change:transform}
.frag.serif{font-family:var(--serif)}
@keyframes drift{from{transform:translate3d(0,0,0)}to{transform:translate3d(var(--dx,24px),var(--dy,-12px),0)}}
@media (prefers-reduced-motion:reduce){.frag{animation:none;will-change:auto}}
.hero-inner{position:relative;width:100%;display:flex;flex-direction:column;justify-content:center;padding-top:132px;padding-bottom:132px}
.who{display:flex;align-items:center;gap:14px}
.who img{width:44px;height:44px;border-radius:11px;object-fit:cover;border:1px solid var(--rule)}
.who .mono{font-size:12px;letter-spacing:.2em;color:var(--muted)}
.headline{margin:38px 0 34px;font-weight:300;font-size:clamp(38px,6.2vw,80px);line-height:1.2;letter-spacing:.02em}
.headline .zh,.headline .en{display:block}
.headline .ib{display:inline-block}
.headline .en{margin-top:.75em;max-width:40em;font-size:clamp(17px,1.9vw,24px);line-height:1.5;letter-spacing:.01em;color:var(--ink2)}
.hero hr{width:min(100%,760px);margin:0;border:0;border-top:1px solid var(--rule)}
.sub{margin:22px 0 0;font-size:16px;line-height:1.85;color:var(--ink2)}
.hero-foot{position:absolute;left:var(--pad);right:var(--pad);bottom:36px;display:flex;justify-content:space-between;align-items:flex-end;gap:16px}
.clocks{display:grid;grid-template-columns:auto auto;column-gap:1.6em;font-size:12px;letter-spacing:.12em;color:var(--muted);line-height:1.9}
.clocks>div{display:contents}
.clocks .date{color:var(--muted)}
.clocks .gap>.city,.clocks .gap>.tm{margin-top:.7em}
.clocks .tm{color:var(--ink2);font-variant-numeric:tabular-nums}
.pill{display:inline-flex;align-items:center;gap:6px;padding:7px 15px;border:1px solid var(--rule);border-radius:999px;font-size:12px;letter-spacing:.14em;color:var(--ink2);transition:background-color .2s}
.pill:hover{background:var(--hover)}

/* blocks with left rail */
.block{display:grid;grid-template-columns:200px minmax(0,1fr);gap:48px;padding-top:104px;padding-bottom:104px}
.rail{font-size:12px;letter-spacing:.18em;color:var(--muted);line-height:2}
.rail span{display:block}
.body{max-width:760px}
p{text-wrap:pretty}
.prose{margin:0;font-size:clamp(18px,1.6vw,20px);line-height:1.95;color:var(--ink2)}
.notes .note{display:grid;grid-template-columns:120px minmax(0,1fr);gap:24px;padding:30px 0;border-top:1px solid var(--rule)}
.notes .note:first-child{border-top:0;padding-top:0}
.n-label{font-size:11px;letter-spacing:.18em;color:var(--muted);line-height:2;padding-top:.5em;text-transform:uppercase}
.n-label span{display:block}
.note p{margin:0}
.note p{font-weight:300;font-size:clamp(20px,2.1vw,25px);line-height:1.7;color:var(--ink)}

/* list sections */
.list-sec{padding-top:64px;padding-bottom:64px}
.sec-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:34px}
.sec-head h2{margin:0;font-size:22px;font-weight:500;letter-spacing:.04em}
.small{font-size:12px;letter-spacing:.1em;color:var(--muted)}
.small:hover{color:var(--ink)}
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 64px}
.card{border-top:1px solid var(--rule);padding-top:22px}
.kicker{font-size:11px;letter-spacing:.2em;color:var(--muted)}
.card h3{margin:10px 0 8px;font-size:20px;font-weight:500;line-height:1.5}
.card h3 a{background-image:linear-gradient(currentColor,currentColor);background-size:0 1px;background-position:0 100%;background-repeat:no-repeat;transition:background-size .3s}
.card h3 a:hover{background-size:100% 1px}
.card p{margin:0 0 10px;font-size:15px;line-height:1.85;color:var(--ink2)}
.card .meta{font-size:13px;color:var(--muted)}
.kw,.card .kw{font-size:13px;color:var(--muted)}
.fine,.card .fine{font-size:12px;color:var(--faint)}

.rows{list-style:none;margin:0;padding:0}
.rows li{border-top:1px solid var(--rule)}
.rows li:last-child{border-bottom:1px solid var(--rule)}
.row{display:grid;grid-template-columns:minmax(0,1fr) auto;column-gap:16px;row-gap:6px;padding:22px 12px;margin:0 -12px;width:calc(100% + 24px);text-align:left;border-radius:10px;transition:background-color .2s}
.row:hover{background:var(--hover)}
.r-title{font-size:18px;font-weight:500}
.r-meta{font-size:12px;letter-spacing:.1em;color:var(--muted);align-self:center}
.r-desc{grid-column:1/-1;font-size:14px;color:var(--muted)}

/* footer */
.foot{padding-top:72px;padding-bottom:44px}
.colophon{border-top:1px solid var(--rule);padding-top:28px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;font-size:11px;letter-spacing:.12em;color:var(--faint)}

/* qr dialog */
dialog{border:1px solid var(--rule);border-radius:18px;background:var(--bg);color:var(--ink);padding:30px 30px 22px;text-align:center;max-width:calc(100vw - 32px)}
dialog::backdrop{background:rgba(0,0,0,.38);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}
dialog img{margin:0 auto 14px;border-radius:10px;width:220px;height:220px}
dialog p{margin:0;font-size:15px}
dialog .fine{margin-top:6px}
dialog .close{position:absolute;top:10px;right:14px;font-size:22px;line-height:1;color:var(--muted);width:32px;height:32px}
dialog .close:hover{color:var(--ink)}

/* small screens */
@media (max-width:760px){
  .nav-wrap{top:10px;left:10px;right:10px}
  .nav{padding:0 16px;height:48px}
  .nav-links{gap:16px;font-size:14px}
  .hero-inner{padding-top:112px;padding-bottom:176px}
  .headline{margin:30px 0 26px}
  .hero-foot{bottom:28px}
  .block{grid-template-columns:1fr;gap:18px;padding-top:72px;padding-bottom:72px}
  .rail span{display:inline;margin-right:.4em}
  .notes .note{grid-template-columns:1fr;gap:10px}
  .n-label span{display:inline;margin-right:.6em}
  .cards{grid-template-columns:1fr;gap:36px}
  .list-sec{padding-top:48px;padding-bottom:48px}
  .frag{opacity:.7}
  .frag:nth-child(n+11){display:none}
}