:root{--night:#13233F;--night2:#1D3358;--gold:#F2B31B;--gold-d:#B7860B;--gold-t:#FDF3D6;--leaf:#3F7D3A;--ink:#1F2937;--muted:#6B7280;--line:#E3E7EE;--card:#F4F6FA}
*{box-sizing:border-box}html,body{margin:0}
body{font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.7}
a{color:var(--gold-d)}
.top{background:var(--night);color:#fff}
.top .in,.wrap{max-width:1040px;margin:0 auto;padding:0 1rem}
.top .in{display:flex;align-items:center;gap:1rem;padding-top:.6rem;padding-bottom:.6rem;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.5rem;color:#fff;text-decoration:none;font-weight:700;letter-spacing:.05em}
.brand img{width:28px;height:28px}
.nav{display:flex;gap:.9rem;flex-wrap:wrap;font-size:.85rem;margin-left:auto}
.nav a{color:#C9D3E3;text-decoration:none}.nav a.cur{color:var(--gold);font-weight:600}
.hero{background:linear-gradient(180deg,var(--night) 0,var(--night2) 100%);color:#fff;padding:2.5rem 0 3rem}
.hero .wrap{display:grid;grid-template-columns:1fr;gap:1.5rem;align-items:center}
.stage{display:inline-block;font-size:.78rem;font-weight:700;padding:.1rem .6rem;border-radius:999px;background:var(--gold);color:var(--night)}
.stage.sprout{background:var(--leaf);color:#fff}.stage.seed{background:#8A5A2B;color:#fff}
.hero h1{font-size:2rem;line-height:1.3;margin:.6rem 0 .4rem}
.hero p{color:#C9D3E3;margin:.3rem 0;max-width:36rem}
.hero .art img{width:100%;max-height:340px;object-fit:contain;display:block;border-radius:12px}
.btn{display:inline-block;background:var(--gold);color:var(--night);font-weight:700;text-decoration:none;padding:.65rem 1.2rem;border-radius:8px;margin:.9rem .5rem 0 0}
.btn.ghost{background:transparent;color:#fff;border:1px solid #6B7FA3}
section{padding:2.5rem 0}
section.alt{background:var(--card)}
h2{font-size:1.4rem;margin:0 0 1rem}
.grid{display:grid;grid-template-columns:1fr;gap:1rem}
.feat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:1.1rem}
section.alt .feat{border-color:#fff}
.feat .ic{width:2.6rem;height:2.6rem;border-radius:50%;background:var(--gold-t);display:grid;place-items:center;font-size:1.3rem;margin-bottom:.5rem}
.feat b{display:block;font-size:1.02rem;margin-bottom:.2rem}
.feat span{color:var(--muted);font-size:.9rem}
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:1.5rem}
.stat b{display:block;font-size:2rem;color:var(--gold);font-family:Arial,sans-serif;line-height:1.1}
.stat span{color:#C9D3E3;font-size:.85rem}
.gallery{display:grid;grid-template-columns:1fr;gap:1rem}
.gallery figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.gallery img{width:100%;display:block}
.gallery figcaption{font-size:.82rem;color:var(--muted);padding:.5rem .8rem}
.flow{display:grid;grid-template-columns:1fr;gap:.75rem;counter-reset:f}
.flow div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:1rem;position:relative}
.flow div::before{counter-increment:f;content:counter(f);position:absolute;top:1rem;right:1rem;width:1.6rem;height:1.6rem;border-radius:50%;background:var(--gold);color:var(--night);font-weight:700;display:grid;place-items:center;font-size:.85rem}
.flow b{display:block}.flow span{color:var(--muted);font-size:.9rem}
.note{background:var(--gold-t);border-radius:10px;padding:.9rem 1.1rem;font-size:.92rem}
.paper{background:#FBFAF7;border-radius:14px;padding:1.6rem;max-width:300px;margin:auto;box-shadow:0 12px 30px rgba(0,0,0,.25)}
.paper img{width:100%;display:block}
.covers{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem}
.covers img{width:100%;border-radius:8px;border:1px solid var(--line);display:block}
footer{background:var(--night);color:#8A9BB8;font-size:.8rem;text-align:center;padding:1.5rem 1rem;line-height:2}
footer a{color:#8A9BB8;text-decoration:none;margin:0 .3rem}
@media (min-width:760px){.hero .wrap{grid-template-columns:1.2fr 1fr}.hero h1{font-size:2.5rem}.grid{grid-template-columns:repeat(3,1fr)}.stats{grid-template-columns:repeat(4,1fr)}.gallery.two{grid-template-columns:1fr 1fr}.gallery.three{grid-template-columns:repeat(3,1fr)}.flow{grid-template-columns:repeat(5,1fr)}.covers{grid-template-columns:repeat(4,1fr)}}