:root{
  --ink:#14201e;
  --ink-soft:#3c4d49;
  --muted:#6c7d79;
  --line:#dce6e3;
  --bg:#f4f7f6;
  --surface:#ffffff;
  --primary:#0e7c6b;
  --primary-deep:#0a4f46;
  --primary-tint:#e7f3f0;
  --accent:#d9772a;
  --accent-tint:#fbeede;
  --shadow:0 1px 2px rgba(16,40,36,.05),0 8px 24px rgba(16,40,36,.06);
  --shadow-hover:0 2px 6px rgba(16,40,36,.08),0 18px 40px rgba(16,40,36,.12);
  --r:14px;
  --r-sm:10px;
  --maxw:1160px;
  --mono:"SF Mono","Cascadia Code",Consolas,"Courier New",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","微软雅黑","Hiragino Sans GB","Source Han Sans CN","Noto Sans CJK SC",sans-serif;
}
[data-theme="dark"]{
  --ink:#e9f1ef;
  --ink-soft:#b7c6c2;
  --muted:#8a9b97;
  --line:#243630;
  --bg:#0e1715;
  --surface:#15211e;
  --primary:#34b39c;
  --primary-deep:#0e7c6b;
  --primary-tint:#15302b;
  --accent:#e6913f;
  --accent-tint:#2c2113;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35);
  --shadow-hover:0 2px 6px rgba(0,0,0,.5),0 18px 40px rgba(0,0,0,.5);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
[id]{scroll-margin-top:80px}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--ink);
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
section{padding:72px 0}
.eyebrow{font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--primary);font-weight:700}
h2{font-size:clamp(26px,3.4vw,38px);line-height:1.2;letter-spacing:-.01em;margin:14px 0 8px}
h3{font-size:19px;line-height:1.35;letter-spacing:-.01em}
.lead{color:var(--ink-soft);font-size:16.5px;max-width:62ch}
.muted{color:var(--muted)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- top bar ---------- */
.topbar{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:14px;height:62px}
.brand{font-weight:800;letter-spacing:-.02em;font-size:18px;flex:none}
.brand .dot{color:var(--primary)}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;color:var(--primary);background:var(--primary-tint);padding:4px 10px;border-radius:999px}
.nav{display:flex;align-items:center;gap:18px;flex:1;justify-content:flex-end;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.nav::-webkit-scrollbar{display:none}
.nav-link{font-size:14px;color:var(--ink-soft);font-weight:600;white-space:nowrap;transition:color .15s ease}
.nav-link:hover{color:var(--primary)}
.nav-svc{background:var(--primary-tint);color:var(--primary-deep);padding:6px 13px;border-radius:999px;font-weight:700;white-space:nowrap;transition:background .15s ease,color .15s ease}
.nav-svc:hover{background:var(--primary);color:#fff}
.nav-svc .ext{font-size:11px;opacity:.85;margin-left:2px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:84px 0 64px}
.hero::before{content:"";position:absolute;inset:0;background:
   radial-gradient(900px 420px at 88% -10%,var(--primary-tint),transparent 60%),
   radial-gradient(700px 360px at -5% 110%,var(--accent-tint),transparent 55%);opacity:.9;pointer-events:none}
.hero .wrap{position:relative}
.hero .domain{font-size:clamp(44px,8vw,92px);font-weight:800;letter-spacing:-.04em;line-height:.98;margin:18px 0 10px}
.hero .domain .c{color:var(--primary)}
.hero .claim{font-size:clamp(18px,2.4vw,24px);font-weight:600;color:var(--ink);line-height:1.45;margin-top:16px}
.hero .claim .ln{display:block}
.hero .claim .ln+.ln{margin-top:1px}
.hero .claim b{color:var(--accent)}
.hero .pills{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--ink-soft);background:var(--surface);border:1px solid var(--line);padding:8px 14px;border-radius:999px;box-shadow:var(--shadow)}
.pill .k{color:var(--primary);font-weight:800}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:15px;padding:13px 22px;border-radius:11px;transition:transform .15s ease,box-shadow .2s ease,background .2s ease;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 18px rgba(14,124,107,.28)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:0 12px 26px rgba(14,124,107,.34)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}

/* ---------- thin section heads ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.sec-note{font-size:13.5px;color:var(--muted)}
.divider{height:1px;background:var(--line);border:0}

/* ---------- profile grid ---------- */
.profile{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow)}
.pcard .k{font-size:13px;color:var(--muted);font-weight:600}
.pcard .v{font-size:22px;font-weight:800;margin-top:6px;letter-spacing:-.01em}
.pcard .v.sm{font-size:16px}
.pcard .s{font-size:12.5px;color:var(--muted);margin-top:4px}

/* ---------- meaning ---------- */
.mean{display:grid;grid-template-columns:1.1fr 1fr;gap:28px;align-items:center}
.glyphs{display:flex;gap:14px;flex-wrap:wrap}
.glyph{flex:1;min-width:120px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px 18px;text-align:center;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .2s ease}
.glyph:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.glyph .ch{font-size:46px;font-weight:800;color:var(--primary);line-height:1}
.glyph .en{font-size:12.5px;color:var(--muted);margin-top:8px;letter-spacing:.04em}
.glyph .eq{font-size:13.5px;color:var(--ink-soft);margin-top:6px;font-weight:600}
.proof{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow)}
.proof .badge{display:inline-block;font-size:12px;font-weight:800;color:var(--accent);background:var(--accent-tint);padding:4px 10px;border-radius:999px;margin-bottom:12px}
.proof ul{list-style:none;margin-top:10px}
.proof li{position:relative;padding-left:20px;margin:9px 0;color:var(--ink-soft);font-size:14.5px}
.proof li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--primary)}

/* ---------- lifecycle ---------- */
.life-bg{background:linear-gradient(180deg,var(--bg),var(--surface))}
.life{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;position:relative}
.stage{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px 20px;box-shadow:var(--shadow);position:relative;transition:transform .18s ease,box-shadow .2s ease}
.stage:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.stage .num{font-family:var(--mono);font-size:13px;color:var(--primary);font-weight:700}
.stage h3{margin:8px 0 6px;font-size:18px}
.stage .dir{display:inline-block;font-size:11.5px;font-weight:800;color:#fff;background:var(--primary);padding:3px 8px;border-radius:6px;margin-bottom:10px}
.stage p{font-size:14px;color:var(--ink-soft)}
.stage .arrow{position:absolute;right:-12px;top:50%;transform:translateY(-50%);color:var(--primary);font-size:20px;font-weight:800;z-index:2}
.stage:last-child .arrow{display:none}
.life-portal{margin-top:18px;background:var(--primary-tint);border:1px dashed var(--primary);border-radius:var(--r);padding:14px 18px;font-size:14.5px;color:var(--ink-soft);text-align:center}
.life-portal b{color:var(--primary-deep)}

/* ---------- evidence wall ---------- */
.proof-wall{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ev{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;transition:transform .18s ease,box-shadow .2s ease}
.ev:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.ev .big{font-family:var(--mono);font-size:30px;font-weight:800;color:var(--primary);letter-spacing:-.02em;line-height:1.1}
.ev .big .u{font-size:14px;color:var(--muted);font-weight:600;margin-left:4px}
.ev .ttl{font-weight:700;font-size:15.5px}
.ev .src{margin-top:auto;font-size:12.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:10px}
.ev.feature{grid-column:span 1;background:var(--primary-deep);border-color:var(--primary-deep);color:#fff}
.ev.feature .big{color:#fff}
.ev.feature .ttl{color:#eafff9}
.ev.feature .src{color:#b6ddd5;border-color:rgba(255,255,255,.2)}

/* ---------- causal chain ---------- */
.chain{display:flex;flex-direction:column;gap:0;position:relative}
.chain-step{display:grid;grid-template-columns:54px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
.chain-step:last-child{border-bottom:0}
.chain-step .idx{font-family:var(--mono);font-weight:800;font-size:18px;color:var(--primary);background:var(--primary-tint);width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center}
.chain-step h3{font-size:16.5px}
.chain-step p{font-size:14.5px;color:var(--ink-soft);margin-top:4px;max-width:70ch}
.chain-step .hl{color:var(--accent);font-weight:700}

/* ---------- buyers ---------- */
.buyers{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.buyer{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);padding:18px 16px;box-shadow:var(--shadow);font-size:14.5px;font-weight:600;display:flex;align-items:flex-start;gap:10px}
.buyer .ic{flex:none;width:26px;height:26px;border-radius:7px;background:var(--primary-tint);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px}

/* ---------- roadmap ---------- */
.road{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.phase{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow);position:relative}
.phase .pno{font-family:var(--mono);font-size:13px;color:var(--accent);font-weight:800}
.phase h3{margin:6px 0 8px}
.phase p{font-size:14px;color:var(--ink-soft)}
.phase .req{display:inline-block;margin-top:12px;font-size:12px;font-weight:700;color:var(--muted)}

/* ---------- keyword matrix ---------- */
.table-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden}
table{width:100%;border-collapse:collapse;font-size:14.5px}
th,td{text-align:left;padding:15px 18px;border-bottom:1px solid var(--line);vertical-align:top}
thead th{background:var(--primary-tint);color:var(--primary-deep);font-size:13px;font-weight:800;letter-spacing:.02em}
tbody tr:last-child td{border-bottom:0}
td .kw{color:var(--ink-soft);font-size:14px}
.match{display:inline-block;font-size:12px;font-weight:800;padding:3px 9px;border-radius:999px}
.m-high{background:var(--primary-tint);color:var(--primary-deep)}
.m-mid{background:var(--accent-tint);color:#9a5410}

/* ---------- scarcity ---------- */
.scarce{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.scarce .box{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow)}
.scarce .box .big{font-family:var(--mono);font-size:24px;font-weight:800;color:var(--primary)}

/* ---------- trade flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow);position:relative}
.step .n{font-family:var(--mono);font-size:13px;font-weight:800;color:var(--primary);margin-bottom:8px}
.step h3{font-size:16px}
.step p{font-size:13.5px;color:var(--ink-soft);margin-top:6px}

.contact-bg{background:linear-gradient(180deg,var(--surface),var(--bg))}

/* ---------- inquiry form ---------- */
.inq{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow)}
.inq .fld{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.inq-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.inq label{font-size:13px;font-weight:700;color:var(--ink-soft)}
.inq input,.inq textarea{width:100%;font:inherit;font-size:15px;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:11px 13px;transition:border-color .15s ease,box-shadow .15s ease}
.inq input:focus,.inq textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 18%,transparent)}
.inq textarea{resize:vertical;min-height:96px}
.inq-bot{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-top:2px}
.inq-bot .inq-cap{margin-bottom:0}
.cap-box{display:flex;gap:10px;align-items:center}
.cap-box input{width:140px;flex:none}
.cap-box img{height:44px;border-radius:10px;border:1px solid var(--line);background:var(--surface);cursor:pointer;display:block}
.inq-submit{flex:none;height:44px;padding-top:0;padding-bottom:0}
.inq-privacy{font-size:12.5px;margin-top:14px}
.inq-msg{font-size:14px;font-weight:600;min-height:22px;margin-top:8px}
.inq-msg.ok{color:var(--primary)}
.inq-msg.err{color:#c0392b}
[data-theme="dark"] .inq-msg.err{color:#ff9b8f}
.inq-submit:disabled{opacity:.6;cursor:not-allowed;transform:none}

/* ---------- contact + inquiry (two columns) ---------- */
.duo{display:grid;grid-template-columns:1fr;gap:36px;align-items:start}
.duo.two{grid-template-columns:1.5fr 1fr}
.solo{margin-bottom:20px}
.solo .sec-note{display:block;margin-top:6px}
.contact{display:flex;flex-direction:column;align-items:flex-start}
.contact h2{margin:12px 0 10px}
.contact .qr{width:200px;height:200px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px;text-align:center;box-shadow:var(--shadow);position:relative;margin:18px 0 0;overflow:hidden}
.contact .qr::before{content:"";position:absolute;inset:14px;border:2px dashed var(--line);border-radius:8px}
.contact .qr.has-img::before{display:none}
.contact .qr img{width:100%;height:100%;object-fit:contain;position:relative;z-index:1}
.contact .email{display:inline-flex;align-items:center;gap:10px;margin-top:16px;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:12px 16px;font-weight:600;box-shadow:var(--shadow)}
.contact .email .mono{color:var(--primary-deep)}
.contact .qrnote{font-size:13px;margin-top:14px}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);background:var(--surface);padding:34px 0}
footer .wrap{font-size:13px;color:var(--muted);line-height:1.7}
footer b{color:var(--ink-soft)}

/* ---------- theme toggle ---------- */
.theme-btn{position:fixed;right:18px;bottom:18px;z-index:60;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--surface);color:var(--ink);box-shadow:var(--shadow-hover);cursor:pointer;font-size:18px;display:flex;align-items:center;justify-content:center;transition:transform .15s ease}
.theme-btn:hover{transform:scale(1.08)}
.theme-btn.is-auto::after{content:"";position:absolute;top:7px;right:7px;width:6px;height:6px;border-radius:50%;background:var(--accent,#0e7c6b)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

@media(max-width:900px){
  .profile,.life,.proof-wall,.buyers,.road,.flow,.scarce{grid-template-columns:1fr 1fr}
  .stage .arrow{display:none}
  .mean{grid-template-columns:1fr}
  .duo.two{grid-template-columns:1fr}
}
@media(max-width:620px){
  section{padding:54px 0}
  .profile,.life,.proof-wall,.buyers,.road,.flow,.scarce{grid-template-columns:1fr}
  .inq-row{grid-template-columns:1fr}
  .inq{padding:20px}
  .inq-bot{flex-direction:column;align-items:stretch}
  .inq-submit{width:100%;justify-content:center}
  .topbar .wrap{height:56px}
  .nav{gap:13px;justify-content:flex-start;padding:1px 0}
  .nav-link{font-size:13.5px}
  .wrap{padding:0 18px}
}
@media(max-width:400px){
  .hero .claim{font-size:17px}
}
@media(prefers-reduced-motion:reduce){
  .reveal{transition:none;opacity:1;transform:none}
  html{scroll-behavior:auto}
}