:root{--bg:#F6EDE0;--deep:#EAD7C0;--card:#FFFFFF;--soft:#E8D2B4;--title:#3A2414;--text:#4A3220;--muted:#7A5634;--brand:#C4843C;--bright:#D9A05A;--dark:#8B5A2B;--cream:#FFF6EA;--border:rgba(196,132,60,.18);--shadow:0 12px 28px rgba(58,36,20,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.wrap{width:min(960px,calc(100% - 32px));margin:0 auto}.site-head{position:fixed;top:0;left:0;right:0;z-index:50}.top-strip{height:20px;background:var(--dark);color:var(--cream);font-size:12px}.top-strip-inner,.brand-row-inner,.quick-nav-inner{height:100%;display:flex;align-items:center;justify-content:space-between}.text-button,.menu-button,.close-button{border:0;background:transparent;color:inherit;min-height:44px;cursor:pointer}.brand-row{height:54px;background:#fff;border-bottom:1px solid var(--border)}.brand-home,.brand-actions{display:flex;align-items:center;gap:12px}.brand-logo,.footer-logo,.sheet-logo{height:24px;width:auto;max-width:180px;object-fit:contain;object-position:center}.brand-name{font-size:16px;font-weight:800;color:var(--title)}.plain-link,.menu-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 14px;border-radius:10px}.plain-link{color:var(--dark);border:1px solid var(--border)}.menu-button{background:linear-gradient(135deg,var(--bright),var(--brand) 55%,var(--dark));color:var(--cream)}.quick-nav{height:44px;background:var(--cream);border-bottom:1px solid var(--border)}.quick-nav-inner{justify-content:flex-start;gap:14px}.knot-shape{width:18px;height:14px;border:2px solid var(--brand);border-radius:8px 3px 8px 3px;display:block}.quick-nav a{font-size:13px;padding:4px 10px;border:1px solid var(--brand);border-radius:999px;color:var(--title)}.quick-nav a.active{background:var(--brand);color:var(--cream);box-shadow:0 0 0 2px rgba(196,132,60,.18)}.main-content{padding-top:118px;min-height:70vh}.section{padding:44px 0}.section.alt{background:var(--deep)}.section.white{background:#fff}.eyebrow{font-size:13px;color:var(--dark);font-weight:700;margin-bottom:8px}.hero{padding:46px 0 38px}.hero h1,.page-hero h1{font-size:24px;line-height:1.3;color:var(--title);margin:8px 0 14px}.lead{font-size:17px;color:var(--title);font-weight:700}.hero p,.page-hero p{max-width:760px}.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn{display:inline-flex;align-items:center;justify-content:center;height:42px;padding:0 18px;border-radius:10px;font-size:14px;font-weight:700}.btn.primary{background:linear-gradient(135deg,var(--bright),var(--brand) 55%,var(--dark));color:var(--cream)}.btn.secondary{background:#fff;border:1px solid var(--brand);color:var(--title)}.btn:hover,.plain-link:hover,.menu-button:hover,.quick-nav a:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible{outline:3px solid rgba(196,132,60,.42);outline-offset:2px}.index-knot{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}.index-knot .knot-shape{flex:none}.media-slot{background:var(--cream);border:1px solid var(--border);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.slot-wide{width:100%;height:168px}.slot-small{width:240px;height:176px}.slot-160{width:100%;height:160px}.slot-app{width:240px;height:320px}.slot-banner{width:100%;height:200px}.slot-icon{width:48px;height:48px;border-radius:12px}.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(240px,360px);gap:28px;align-items:center}.split.reverse{grid-template-columns:minmax(240px,360px) minmax(0,1fr)}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}.card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:20px;box-shadow:var(--shadow)}.card h2,.card h3,.section h2,.section h3{color:var(--title)}.section h2{font-size:20px;margin:0 0 16px}.section h3{font-size:16px;margin:0 0 8px}.list-stack{display:grid;gap:12px}.list-item{background:#fff;border-left:4px solid var(--brand);padding:16px 18px;border-radius:8px;box-shadow:var(--shadow)}.status-list{display:grid;gap:12px}.status-row{display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:start;background:#fff;border:1px solid var(--border);border-radius:10px;padding:16px}.status-badge{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:0 12px;background:var(--cream);border:1px solid var(--brand);border-radius:999px;color:var(--title);font-weight:700}.center-card{max-width:740px;margin:0 auto;text-align:center}.center-card p{text-align:left}.article{max-width:820px;margin:0 auto}.article h2{margin-top:28px}.article p{margin:0 0 16px}.terms{display:grid;gap:16px}.term{background:#fff;border:1px solid var(--border);border-radius:10px;padding:20px}.faq{display:grid;gap:14px}.faq article{background:#fff;border:1px solid var(--border);border-radius:10px;padding:18px}.faq h2{font-size:16px;margin:0 0 8px}.faq p{margin:0}.app-wrap{display:grid;grid-template-columns:260px 1fr;gap:28px;align-items:start}.app-visual{display:grid;gap:12px;justify-items:start}.app-copy{background:#fff;border:1px solid var(--border);border-radius:10px;padding:22px}.site-footer{background:var(--dark);color:var(--cream);padding:34px 0 76px;border-top:1px solid rgba(255,246,234,.25);font-size:13px}.footer-brand{display:flex;align-items:center;gap:12px;padding-bottom:18px}.footer-brand div{display:flex;flex-direction:column}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:22px 0;border-top:1px solid rgba(255,246,234,.2);border-bottom:1px solid rgba(255,246,234,.2)}.footer-grid h2{font-size:13px;margin:0 0 10px;color:#fff}.footer-grid a{display:block;margin:5px 0;color:var(--cream)}.footer-note{padding-top:16px;color:#FFEBD6}.overlay{position:fixed;inset:0;background:rgba(58,36,20,.36);z-index:80;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.open{opacity:1;visibility:visible;pointer-events:auto}.menu-sheet{position:fixed;left:0;right:0;bottom:0;z-index:90;background:#fff;border-top:1px solid var(--border);box-shadow:0 -18px 44px rgba(58,36,20,.16);max-height:220px;transform:translateY(104%);visibility:hidden;pointer-events:none;transition:.24s}.menu-sheet.open{transform:translateY(0);visibility:visible;pointer-events:auto}.sheet-head{height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - 960px)/2))}.sheet-title{display:flex;align-items:center;gap:10px;color:var(--title)}.sheet-groups{width:min(960px,calc(100% - 32px));margin:0 auto;display:grid;grid-template-columns:1.1fr 1.1fr .8fr 1.3fr;gap:14px;overflow:auto;padding-bottom:16px}.sheet-groups h2{font-size:13px;margin:0 0 8px;color:var(--dark)}.sheet-groups a{display:block;padding:5px 0}.sheet-groups a b,.sheet-groups a span{display:block}.sheet-groups a span{font-size:12px;color:var(--muted)}.search-panel{position:fixed;top:74px;left:0;right:0;z-index:85;visibility:hidden;pointer-events:none}.search-panel.open{visibility:visible;pointer-events:auto}.search-card{width:min(720px,calc(100% - 32px));margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:0 0 12px 12px;box-shadow:var(--shadow);padding:20px}.search-top{display:flex;justify-content:space-between;align-items:center;color:var(--title)}.search-links{display:flex;gap:10px;flex-wrap:wrap}.search-links a{padding:8px 12px;border:1px solid var(--brand);border-radius:999px}.mobile-bar{display:none}.page-hero{padding:40px 0 26px}.page-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:10px}.page-meta span{font-size:13px;border:1px solid var(--border);border-radius:999px;padding:4px 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