:root{--bg:#F7F1E6;--bg2:#EFE7D6;--surface:#FFFDF8;--surface2:#F2EBDC;--line:rgba(29,26,23,.12);--text:#1D1A17;--text2:#4A423A;--muted:#6B6256;--cin:#C8341F;--cin-ink:#B02A17;--on:#FFFFFF;--jade:#1F7A63;--gold:#D9A21B;--gold-ink:#7A5600;--grid:rgba(176,42,23,.30);
--serif:'Iowan Old Style','Palatino Linotype',Palatino,'Noto Serif',Georgia,'Songti SC','Noto Serif SC',serif;--sans:system-ui,-apple-system,'Segoe UI',Roboto,'Noto Sans','PingFang SC','Noto Sans SC',sans-serif;--hanzi:'Noto Serif SC','Source Han Serif SC','Songti SC',STSong,SimSun,serif}
@media(prefers-color-scheme:dark){:root{--bg:#171310;--bg2:#110E0B;--surface:#211B16;--surface2:#2B241D;--line:rgba(243,235,221,.14);--text:#F3EBDD;--text2:#CFC4B1;--muted:#A89E8C;--cin:#E8553F;--cin-ink:#FF8A76;--on:#1D1A17;--jade:#3DBA98;--gold:#E8B83A;--gold-ink:#F0C75A;--grid:rgba(255,138,118,.30)}}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font:16px/1.6 var(--sans)}
h1,h2,h3{font-family:var(--serif);letter-spacing:-.02em;line-height:1.15}
a{color:var(--cin-ink)}code{background:var(--surface2);padding:1px 6px;border-radius:6px}.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
.nav{position:sticky;top:0;z-index:10;backdrop-filter:blur(14px);background:color-mix(in srgb,var(--bg) 85%,transparent);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font:700 21px var(--serif)}
.brand img{border-radius:9px}.nav nav{display:flex;gap:20px;align-items:center}.nav nav a{color:var(--text2);text-decoration:none;font-weight:500;font-size:15px}
.cta{background:var(--cin);color:var(--on)!important;padding:9px 16px;border-radius:99px;font-weight:700!important}
.hero{padding:72px 0 56px}.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(38px,5.6vw,62px);font-weight:700}.hero h1 em{font-style:normal;color:var(--cin)}
.lead{color:var(--text2);font-size:19px;margin:18px 0 26px;max-width:540px}.badges{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 24px;border-radius:99px;font:700 16px var(--sans);text-decoration:none;background:var(--cin);color:var(--on);box-shadow:0 8px 20px rgba(200,52,31,.28)}
.btn.ghost{background:var(--surface2);color:var(--text);border:1px solid var(--line);box-shadow:none}
.note{color:var(--muted);font-size:14px;margin-top:16px}
.seal{position:relative;width:min(340px,80vw);aspect-ratio:1;margin:0 auto}
.seal .mi{position:absolute;inset:0;border-radius:28px;background:var(--cin);display:grid;place-items:center;box-shadow:0 22px 54px rgba(60,40,10,.2);overflow:hidden;
background-image:linear-gradient(to right,transparent calc(50% - .5px),rgba(255,255,255,.28) calc(50% - .5px),rgba(255,255,255,.28) calc(50% + .5px),transparent calc(50% + .5px)),linear-gradient(to bottom,transparent calc(50% - .5px),rgba(255,255,255,.28) calc(50% - .5px),rgba(255,255,255,.28) calc(50% + .5px),transparent calc(50% + .5px))}
.seal .hz{font:700 clamp(120px,24vw,200px)/1 var(--hanzi);color:#fff}
.seal .stamp{position:absolute;right:-6px;bottom:-6px;background:var(--gold);color:#1D1A17;font:700 22px var(--serif);padding:6px 16px;border-radius:99px}
section{padding:64px 0}section h2{font-size:clamp(28px,4vw,40px);font-weight:700;margin-bottom:10px}.sub{color:var(--text2);max-width:700px;margin-bottom:30px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:24px}.card h3{font-size:20px;margin:12px 0 6px}.card p{color:var(--text2);font-size:15px}
.ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;font:700 24px var(--hanzi);background:var(--cin);color:#fff}.ico.j{background:var(--jade);color:#fff}.ico.g{background:var(--gold);color:#1D1A17}
.alt{background:var(--bg2);border-block:1px solid var(--line)}
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}.plan{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:18px;text-align:center}.plan b{display:block;font:700 24px var(--serif)}.plan.best{border-color:var(--gold);background:color-mix(in srgb,var(--gold) 16%,var(--surface))}
.doc{max-width:760px;padding-top:48px;padding-bottom:80px}.doc h1{font-size:42px;margin-bottom:6px}.doc h2{font-size:24px;margin:34px 0 8px}.doc h3{font-size:18px;margin:20px 0 6px}.doc p,.doc li{color:var(--text2);margin-bottom:10px}.doc ul{padding-left:22px}.doc .meta{color:var(--muted);margin-bottom:24px}.doc b{color:var(--text)}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);font-size:14px}footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}footer a{color:var(--text2);margin-left:16px;text-decoration:none}
@media(max-width:820px){.hero .wrap{grid-template-columns:1fr}.hero{padding-top:36px}.nav nav a:not(.cta){display:none}}