@font-face{font-family:"Bricolage";src:url(/assets/fonts/Bricolage-400-800.woff2) format("woff2");font-weight:400 800;font-display:swap}
@font-face{font-family:"JBMono";src:url(/assets/fonts/JetBrainsMono-400-700.woff2) format("woff2");font-weight:400 700;font-display:swap}

:root{
  --paper:#FBF3E2;--paper-2:#F4E9D2;--ink:#1B232B;--ink-2:#47505A;--muted:#6E6A64;
  --navy:#25384A;--khaki:#B89A72;--khaki-ink:#7A5F3E;--line:#E6D9BF;--card:#FFFAF0;
  --focus:#25384A;--shadow:0 1px 0 rgba(27,35,43,.04),0 10px 30px -18px rgba(27,35,43,.35);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#11171D;--paper-2:#151D24;--ink:#F2E8D4;--ink-2:#C9C0AE;--muted:#9A948A;
  --navy:#8FA7BE;--khaki:#C9AB82;--khaki-ink:#D8BC92;--line:#26313B;--card:#161E26;
  --focus:#C9AB82;--shadow:0 1px 0 rgba(0,0,0,.2),0 14px 34px -20px rgba(0,0,0,.8);color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#11171D;--paper-2:#151D24;--ink:#F2E8D4;--ink-2:#C9C0AE;--muted:#9A948A;
  --navy:#8FA7BE;--khaki:#C9AB82;--khaki-ink:#D8BC92;--line:#26313B;--card:#161E26;
  --focus:#C9AB82;--shadow:0 1px 0 rgba(0,0,0,.2),0 14px 34px -20px rgba(0,0,0,.8);color-scheme:dark}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);
  font:16px/1.75 "Bricolage",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-optical-sizing:auto}
a{color:inherit;text-decoration-color:var(--khaki);text-underline-offset:3px;text-decoration-thickness:1.5px}
a:hover{text-decoration-color:var(--ink)}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:6px}
.wrap{width:min(1040px,100% - 32px);margin-inline:auto}
.mono{font-family:"JBMono",ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums}

/* 格子带:取自头像衬衫的海军蓝 + 卡其格纹 —— 全站唯一装饰 */
.plaid{height:10px;border-radius:999px;opacity:.9;
  background:
    repeating-linear-gradient(90deg,transparent 0 14px,color-mix(in srgb,var(--navy) 55%,transparent) 14px 20px,transparent 20px 34px),
    repeating-linear-gradient(0deg,transparent 0 3px,color-mix(in srgb,var(--paper) 40%,transparent) 3px 4px),
    linear-gradient(var(--khaki),var(--khaki))}

/* 顶栏 */
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;letter-spacing:-.01em}
.brand img{width:32px;height:32px;border-radius:50%}
.top nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.top nav a,.toggle{font:500 14px/1 "JBMono",ui-monospace,monospace;letter-spacing:.02em;color:var(--ink-2);text-decoration:none;
  padding:8px 10px;border-radius:8px;border:1px solid transparent;background:none;cursor:pointer}
.top nav a:hover,.toggle:hover{border-color:var(--line);color:var(--ink)}

/* Hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:40px;align-items:center;padding:44px 0 28px}
.eyebrow{font:600 12px/1 "JBMono",monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--khaki-ink);margin:0 0 18px}
h1{font-size:clamp(34px,5.4vw,58px);line-height:1.12;letter-spacing:-.025em;margin:0 0 18px;font-weight:750;text-wrap:balance}
.lede{font-size:clamp(17px,2vw,19px);color:var(--ink-2);max-width:36em;margin:0}
.portrait{justify-self:end;width:220px;aspect-ratio:1;border-radius:28px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#FFF4D6}
.portrait img{width:100%;height:100%;display:block}
.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:34px 0 0;padding:0;list-style:none}
.stats li{border-top:1px solid var(--line);padding-top:14px}
.stats b{display:block;font:650 clamp(26px,3.4vw,36px)/1.1 "JBMono",monospace;letter-spacing:-.02em}
.stats span{font-size:14px;color:var(--muted)}

/* 区块 */
section{padding:56px 0 8px}
.sec-h{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:22px;border-bottom:1px solid var(--line);padding-bottom:12px}
h2{font-size:clamp(24px,3vw,30px);letter-spacing:-.02em;line-height:1.2;margin:0;font-weight:700}
.sec-h .mono{font-size:12px;color:var(--muted);letter-spacing:.12em;text-transform:uppercase}

/* 产品卡 */
.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.card{position:relative;display:flex;flex-direction:column;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px 20px 20px;box-shadow:var(--shadow);overflow:hidden}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:6px;
  background:repeating-linear-gradient(90deg,transparent 0 14px,color-mix(in srgb,var(--navy) 55%,transparent) 14px 20px,transparent 20px 34px),linear-gradient(var(--khaki),var(--khaki))}
.card h3{margin:6px 0 0;font-size:21px;letter-spacing:-.015em;line-height:1.25}
.card .kind{font:600 12px/1 "JBMono",monospace;letter-spacing:.08em;color:var(--khaki-ink);text-transform:uppercase}
.card p{margin:0;color:var(--ink-2);font-size:15px}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:2px 0 0;padding:0;list-style:none}
.chips li{font:500 12px/1 "JBMono",monospace;padding:6px 8px;border-radius:999px;border:1px solid var(--line);color:var(--ink-2)}
.card .go{margin-top:auto;padding-top:8px;display:flex;gap:14px;flex-wrap:wrap;font-weight:600;font-size:15px}

/* 怎么工作 */
.how{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:36px;align-items:start}
.how ul{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.how li{display:grid;grid-template-columns:72px minmax(0,1fr);gap:14px;align-items:baseline}
.how li b{font:650 22px/1.1 "JBMono",monospace;color:var(--navy)}
.how li p{margin:0;color:var(--ink-2)}
.how li strong{color:var(--ink)}
.principles{margin-top:22px;padding:16px 18px;border-left:3px solid var(--khaki);background:var(--paper-2);border-radius:0 12px 12px 0;color:var(--ink-2);font-size:15px}
figure.team{margin:0;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:12px;box-shadow:var(--shadow)}
figure.team svg{display:block;width:100%;height:auto}
figure.team figcaption{font-size:13px;color:var(--muted);padding:6px 6px 2px}
.t-line{stroke:var(--line);stroke-width:1.5;fill:none}
.t-node{fill:var(--paper-2);stroke:var(--line)}
.t-me{fill:var(--navy)}
.t-txt{fill:var(--ink);font:600 15px "JBMono",ui-monospace,monospace}
.t-sub{fill:var(--muted);font:500 12.5px -apple-system,"PingFang SC",sans-serif}
.t-metxt{fill:var(--paper);font:700 14px "Bricolage",sans-serif}
.t-auto{fill:none;stroke:var(--khaki);stroke-width:1.5;stroke-dasharray:4 5}

/* 文章 */
.writing{list-style:none;margin:0;padding:0;display:grid;gap:0}
.writing li{display:grid;grid-template-columns:120px minmax(0,1fr);gap:18px;padding:14px 0;border-bottom:1px dashed var(--line)}
.writing .mono{font-size:12px;color:var(--khaki-ink);letter-spacing:.06em;padding-top:4px;text-transform:uppercase}
.writing a{font-weight:600}
.writing p{margin:2px 0 0;color:var(--muted);font-size:14px}

/* 联系 */
.contact{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:20px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.contact p{margin:6px 0 0;color:var(--ink-2)}
.btn{display:inline-flex;align-items:center;gap:10px;font:600 15px/1 "JBMono",monospace;text-decoration:none;background:var(--ink);color:var(--paper);padding:14px 18px;border-radius:12px}
.btn:hover{background:var(--navy)}
.contact-acts{display:flex;gap:10px;flex-wrap:wrap}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.ghost:hover{background:var(--paper-2)}
footer{padding:40px 0 48px;color:var(--muted);font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

@media (max-width:860px){
  .hero{grid-template-columns:1fr;gap:24px;padding-top:20px}
  .portrait{justify-self:start;width:132px;border-radius:22px;order:-1}
  .cards{grid-template-columns:1fr}
  .how{grid-template-columns:1fr}
  .writing li{grid-template-columns:1fr;gap:4px}
  .contact{grid-template-columns:1fr}
}
@media (max-width:420px){.stats{gap:8px}.stats span{font-size:12.5px}.top nav a.hide-s{display:none}}
@media (prefers-reduced-motion:no-preference){.card{transition:transform .2s ease,box-shadow .2s ease}.card:hover{transform:translateY(-2px)}}