/* ALAN — founder site */
:root{
  --bg:#f7f6f3; --surface:#fff; --ink:#14151a; --muted:#6f7076;
  --line:#e5e2db; --accent:#c2410c; --accent-soft:#fdf1ea;
  --max:1120px; --radius:16px; --shadow:0 1px 2px rgba(20,21,26,.04),0 18px 40px rgba(20,21,26,.07);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans SC","PingFang SC",sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.7;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.serif{font-family:"Iowan Old Style","Palatino Linotype",Georgia,"Songti SC","Noto Serif SC",serif}

/* bilingual */
.t-cn{display:none}
body.lang-cn .t-cn{display:inline}
body.lang-cn .t-en{display:none}
.t-cn.block{display:none}
body.lang-cn .t-cn.block{display:block}
body.lang-cn .t-en.block{display:none}

/* nav */
header.top{position:sticky;top:0;z-index:50;background:rgba(247,246,243,.9);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:66px;gap:18px}
.brand{font-weight:800;letter-spacing:.22em;font-size:.95rem}
.brand span{color:var(--accent)}
nav.main{display:flex;gap:2px;align-items:center;flex-wrap:wrap}
nav.main a{padding:8px 12px;border-radius:8px;font-size:.86rem;color:var(--muted);transition:.18s}
nav.main a:hover{color:var(--ink);background:#fff}
nav.main a.on{color:var(--ink);font-weight:650}
.langbtn{border:1px solid var(--line);background:#fff;border-radius:999px;padding:6px 14px;
  font-size:.78rem;font-weight:650;cursor:pointer;color:var(--ink);transition:.18s}
.langbtn:hover{border-color:var(--ink)}

/* hero */
.hero{background:var(--ink);color:#f7f6f3;padding:86px 0 74px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-160px;top:-160px;width:520px;height:520px;
  border-radius:50%;background:radial-gradient(circle,rgba(194,65,12,.30),transparent 62%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:56px;align-items:center;position:relative;z-index:1}
.eyebrow{font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--accent);
  font-weight:750;margin-bottom:20px}
.hero h1{font-size:clamp(2.5rem,5.4vw,4.4rem);line-height:1.03;letter-spacing:-.035em;font-weight:600}
.hero h1 em{font-style:italic;color:#f0a37c}
.nowrap{white-space:nowrap}
.hero .lede{margin-top:26px;font-size:1.02rem;color:rgba(247,246,243,.72);max-width:52ch}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.btn{display:inline-block;padding:13px 24px;border-radius:999px;font-size:.88rem;font-weight:650;
  border:1px solid transparent;transition:.18s}
.btn-light{background:#f7f6f3;color:var(--ink)}
.btn-light:hover{background:var(--accent);color:#fff}
.btn-ghost-light{border-color:rgba(247,246,243,.35);color:#f7f6f3}
.btn-ghost-light:hover{border-color:#f7f6f3}
.btn-solid{background:var(--ink);color:#fff}
.btn-solid:hover{background:var(--accent)}
.btn-ghost{border-color:var(--line);background:#fff;color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}

.now-card{border:1px solid rgba(247,246,243,.18);border-radius:var(--radius);
  padding:22px;background:rgba(255,255,255,.04)}
.hero-portrait{margin:0;border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(247,246,243,.18);background:rgba(255,255,255,.04)}
.hero-portrait img{width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;display:block}
.hero-portrait figcaption{padding:14px 16px;border-top:1px solid rgba(247,246,243,.14);
  font-size:.76rem;color:rgba(247,246,243,.62);display:flex;align-items:baseline;
  justify-content:space-between;gap:12px}
.hero-portrait figcaption strong{color:#f7f6f3;font-size:.86rem;letter-spacing:.04em}
.portrait-card{margin:0;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;background:var(--surface)}
.portrait-card img{width:100%;aspect-ratio:4/5;object-fit:cover;display:block}
.portrait-card figcaption{padding:12px 16px;border-top:1px solid var(--line);
  font-size:.76rem;color:var(--muted);display:flex;justify-content:space-between;gap:12px}
.about-aside{display:grid;gap:16px}
.hero-side{display:grid;gap:14px;align-content:center}
.hero-note{font-size:.8rem;color:rgba(247,246,243,.58);line-height:1.5}
.now-card .label{font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:rgba(247,246,243,.55);
  font-weight:700;margin-bottom:16px}
.now-item{display:flex;align-items:center;gap:14px;padding:12px 0;border-top:1px solid rgba(247,246,243,.12)}
.now-item:first-of-type{border-top:0}
.now-item img{width:54px;height:66px;object-fit:cover;border-radius:8px}
.now-item strong{display:block;font-size:.92rem;letter-spacing:.04em}
.now-item span{display:block;font-size:.76rem;color:rgba(247,246,243,.55);margin-top:2px}
.dot{width:10px;height:10px;border-radius:50%;background:var(--accent);flex:0 0 auto;margin-left:2px}

/* strips + sections */
.strip{border-bottom:1px solid var(--line);background:var(--surface)}
.strip .wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding-top:20px;padding-bottom:20px}
.strip .item .k{font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-weight:750}
.strip .item .v{font-size:.9rem;font-weight:650;margin-top:3px}
section{padding:84px 0}
section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:64ch;margin-bottom:42px}
.sec-head .kicker{font-size:.7rem;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);
  font-weight:750;margin-bottom:14px}
h2{font-size:clamp(1.7rem,3.2vw,2.5rem);line-height:1.1;letter-spacing:-.03em;font-weight:600}
h1,h2{text-wrap:balance}
h3{font-size:1.08rem;font-weight:700;letter-spacing:-.01em}
.sec-head p{margin-top:14px;color:var(--muted);font-size:.98rem}

/* venture cards */
.vgrid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:start}
.vcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:.22s}
.vcard:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.vcard .media{aspect-ratio:16/10;background:#eceae5;overflow:hidden}
.vcard .media img{width:100%;height:100%;object-fit:cover}
.vcard .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.vcard p{color:var(--muted);font-size:.92rem}
.vcard .foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.pill{display:inline-block;font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;
  font-weight:750;padding:5px 10px;border-radius:999px}
.pill.live{background:var(--accent-soft);color:var(--accent)}
.pill.dev{background:#f1f0ed;color:var(--muted)}
.arrow{font-size:.82rem;font-weight:700;color:var(--accent)}
.vcard.muted{background:#fbfaf8;border-style:dashed}
.vcard.muted .body{justify-content:center}

/* venture rows */
.vlist{display:grid;gap:18px}
.vrow{display:grid;grid-template-columns:.95fr 1.05fr;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.22s}
.vrow:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.vrow .vmedia{min-height:300px;position:relative;background:#eceae5;overflow:hidden}
.vrow .vmedia img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.vrow .vbody{padding:32px;display:flex;flex-direction:column;gap:10px;justify-content:center}
.vrow .vbody p{color:var(--muted);font-size:.94rem;max-width:54ch}
.vrow .foot{margin-top:10px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.vrow .vmedia.empty{background:
  radial-gradient(circle at 72% 18%,rgba(194,65,12,.38),transparent 55%),
  linear-gradient(145deg,#23252b,#14151a);
  display:flex;align-items:center;justify-content:center;padding:24px;
  color:rgba(247,246,243,.55);font-size:.7rem;letter-spacing:.24em;
  text-transform:uppercase;text-align:center;font-weight:700}

/* notes */
.note-row{display:grid;grid-template-columns:110px 1fr auto;gap:22px;align-items:start;
  padding:24px 0;border-top:1px solid var(--line)}
.note-row:last-child{border-bottom:1px solid var(--line)}
.note-row .date{font-size:.72rem;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;font-weight:700}
.note-row h3{margin-bottom:6px}
.note-row p{color:var(--muted);font-size:.9rem;max-width:62ch}
.note-row .arrow{align-self:center}

/* split + facts */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:start}
.prose p{margin-bottom:18px;color:#2c2d33}
.prose p:last-child{margin-bottom:0}
.facts{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:6px 22px}
.facts div{display:flex;justify-content:space-between;gap:18px;padding:14px 0;border-top:1px solid var(--line);font-size:.9rem}
.facts div:first-child{border-top:0}
.facts .k{color:var(--muted)}
.facts .v{font-weight:650;text-align:right}

/* principles + timeline */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.pcard .n{font-size:.72rem;letter-spacing:.16em;color:var(--accent);font-weight:750;margin-bottom:14px}
.pcard p{color:var(--muted);font-size:.9rem;margin-top:8px}
.timeline{list-style:none;border-top:1px solid var(--line)}
.timeline li{display:grid;grid-template-columns:180px 1fr;gap:22px;padding:20px 0;border-bottom:1px solid var(--line)}
.timeline .when{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:700}
.timeline .what{font-size:.96rem;font-weight:600}
.timeline .what a{color:var(--accent);border-bottom:1px solid var(--accent-soft)}

/* page hero */
.page-hero{padding:74px 0 54px;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(2.2rem,4.4vw,3.6rem);line-height:1.05;letter-spacing:-.035em;font-weight:600;max-width:18ch}
.page-hero .lede{margin-top:20px;color:var(--muted);font-size:1.02rem;max-width:60ch}

/* article */
.article{max-width:760px;margin:0 auto;padding:70px 0 40px}
.article .meta{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:700;margin-bottom:20px}
.article h1{font-size:clamp(2rem,4.2vw,3.2rem);line-height:1.08;letter-spacing:-.03em;font-weight:600;margin-bottom:22px}
.article .dek{font-size:1.08rem;color:var(--muted);margin-bottom:34px}
.article .body p{margin-bottom:22px;font-size:1.02rem;color:#2c2d33}
.article .body h2{font-size:1.35rem;margin:34px 0 12px}
.pull{border-left:3px solid var(--accent);background:var(--accent-soft);padding:16px 20px;
  border-radius:0 10px 10px 0;font-size:.94rem;margin:28px 0}
.article .now-box{margin-top:38px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--surface);padding:22px}
.article .now-box .k{font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-weight:750;margin-bottom:8px}

/* contact */
.methods{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.method{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.method .k{font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-weight:750;margin-bottom:10px}
.method a,.method .val{font-size:1rem;font-weight:650;word-break:break-word}
.method p{color:var(--muted);font-size:.85rem;margin-top:8px}
.wechat-box{margin-top:22px;border:1px dashed var(--line);border-radius:var(--radius);
  padding:22px;color:var(--muted);font-size:.9rem;background:#fbfaf8;
  display:flex;align-items:center;gap:22px;text-align:left}
.wechat-box .qr{width:132px;height:132px;border-radius:12px;border:1px dashed var(--line);
  background:#fff;display:flex;align-items:center;justify-content:center;flex:0 0 auto;
  font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.wechat-box strong{display:block;color:var(--ink);font-size:.95rem;margin-bottom:4px}
.note{margin-top:22px;background:var(--accent-soft);border-left:3px solid var(--accent);
  border-radius:0 10px 10px 0;padding:14px 18px;font-size:.9rem;color:#3a2a22}

/* CTA band */
.cta-band{background:var(--ink);color:#f7f6f3;padding:62px 0}
.cta-band .wrap{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{color:#f7f6f3;max-width:22ch}
.cta-band p{color:rgba(247,246,243,.62);margin-top:8px;font-size:.92rem}
.cta-band .btn-light{flex:0 0 auto}

/* footer */
footer{border-top:1px solid var(--line);background:var(--surface);padding:46px 0 34px}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:32px}
footer .brand{display:inline-block;margin-bottom:12px}
footer p{color:var(--muted);font-size:.86rem;max-width:40ch}
footer a{color:var(--muted);font-size:.86rem;display:block;padding:4px 0}
footer a:hover{color:var(--ink)}
footer h4{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.copy{margin-top:18px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--muted);font-size:.78rem}

@media(max-width:940px){
  .hero-grid,.split{grid-template-columns:1fr;gap:34px}
  .vrow{grid-template-columns:1fr}
  .vrow .vmedia{min-height:220px;aspect-ratio:16/9}
  .vrow .vbody{padding:24px}
  .pgrid,.methods{grid-template-columns:1fr 1fr}
  .hero h1{max-width:none}
}
@media(max-width:640px){
  .top .wrap{height:auto;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
  nav.main{order:3;width:100%;justify-content:space-between;gap:0}
  nav.main a{padding:6px 4px;font-size:.76rem}
  .langbtn{padding:5px 11px}
  .hero{padding:60px 0 52px}
  .strip .wrap{grid-template-columns:1fr;gap:12px}
  section{padding:60px 0}
  .pgrid,.methods{grid-template-columns:1fr}
  .note-row{grid-template-columns:1fr;gap:8px}
  .note-row .arrow{display:none}
  .timeline li{grid-template-columns:1fr;gap:4px}
  .fgrid{grid-template-columns:1fr}
  .cta-band .wrap{align-items:flex-start}
}