:root{--bg:#F6F0E6;--deep:#EFE6D6;--paper:#FFF9F0;--sub:#E8DCC8;--title:#2C2118;--text:#4A3828;--muted:#6E5744;--aux:#8A7360;--terracotta:#C47A3A;--sand:#C4A574;--olive:#6B7F4A;--brown:#5C3A21;--line:rgba(92,58,33,.16);--shadow:0 16px 42px rgba(44,33,24,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.75 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}.wrap{width:min(1240px,calc(100% - 32px));margin:auto}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.site-top{position:fixed;z-index:50;inset:0 0 auto;background:var(--bg)}.soil-line{height:20px;background:var(--brown);color:var(--deep);font-size:12px}.soil-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.text-btn{border:0;background:none;color:var(--deep);padding:0 6px;min-height:20px}.stage-bar{height:64px;background:var(--sand);border-bottom:1px solid rgba(196,122,58,.45)}.stage-inner{height:100%;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand{justify-self:start;display:flex;align-items:center;min-width:44px;min-height:44px}.brand img,.footer-brand img,.drawer-brand img{display:block;max-width:180px;height:36px;object-fit:contain}.earth-toggle,.join-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(92,58,33,.28);border-radius:10px;padding:0 18px;background:var(--paper);color:var(--brown);font-weight:700}.earth-toggle{justify-self:center}.join-link{justify-self:end;background:linear-gradient(135deg,#C4A574 0%,#C47A3A 55%,#8B5E3C 100%);color:#FFF9F0;border:0}.earth-tabs{height:42px;background:var(--deep);border-bottom:1px solid var(--line)}.tab-row{height:100%;display:flex;gap:8px;align-items:center}.tab-row a{padding:6px 12px;border-radius:8px;color:var(--brown)}.tab-row a.is-current{background:var(--terracotta);color:#FFF9F0}.page-main{padding-top:146px}.hero,.section{padding:38px 0}.hero-card,.content-card,.feature-card,.step-card,.notice,.faq-item{background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.hero-card{padding:26px}.hero h1{font-size:clamp(28px,4vw,32px);line-height:1.2;color:var(--title);margin:12px 0}.eyebrow{letter-spacing:.12em;color:var(--terracotta);font-weight:800}.lead{font-size:17px;max-width:900px}.hero-media,.content-media{background:var(--deep);border:1px solid var(--line);border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden}.hero-media{min-height:220px;max-height:300px}.hero-media img{width:100%;height:100%;max-height:300px;object-fit:contain;object-position:center}.content-media{min-height:180px}.content-media img{width:100%;height:220px;object-fit:contain;object-position:center}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:10px 18px;border-radius:10px;font-weight:800;background:linear-gradient(135deg,#C4A574 0%,#C47A3A 55%,#8B5E3C 100%);color:#FFF9F0}.btn.alt{background:var(--sand);color:var(--brown)}.grid-2,.grid-3,.grid-4{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.feature-card,.content-card,.step-card{padding:22px}.feature-card h2,.content-card h2,.step-card h2,.section h2{color:var(--title);margin:0 0 10px}.tag{display:inline-flex;padding:4px 8px;border-radius:7px;background:var(--olive);color:#FFF9F0;font-size:13px}.tag.terra{background:var(--terracotta)}.number{font-size:34px;font-weight:900;color:var(--terracotta);line-height:1}.muted{color:var(--muted)}.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px}.toc{position:sticky;top:165px;align-self:start;padding:20px;background:var(--deep);border:1px solid var(--line);border-radius:12px}.toc a{display:block;padding:7px 0;color:var(--brown)}.prose section{scroll-margin-top:165px;margin-bottom:18px;padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:14px}.prose h2{font-size:22px;margin-top:0}.notice{padding:20px;border-left:5px solid var(--terracotta)}.status-list{display:grid;gap:12px}.status-item{display:flex;justify-content:space-between;gap:18px;padding:16px 18px;background:var(--paper);border:1px solid var(--line);border-radius:12px}.status{font-weight:800;color:var(--olive)}.site-footer{background:var(--title);color:var(--deep);border-top:2px solid var(--terracotta);padding:42px 0 80px}.footer-brand{display:flex;gap:14px;align-items:center;margin-bottom:24px}.footer-brand span{display:block;color:var(--sand);font-size:13px}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-grid h2{font-size:16px;color:#FFF9F0}.footer-grid a{display:block;padding:5px 0;color:var(--deep)}.footer-note{margin-top:28px;color:var(--sand);max-width:1000px}.copyright{font-size:13px;color:#CDBFAE}.earth-drawer{position:fixed;z-index:80;left:0;top:0;bottom:0;width:min(370px,86vw);background:var(--bg);transform:translateX(-103%);transition:.25s ease;visibility:hidden;pointer-events:none;overflow:auto;box-shadow:var(--shadow)}.earth-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:var(--sand);padding:14px 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