:root{--paper:#FFF8F2;--surface:#FFFFFF;--soft:#F3EBE3;--ink:#1A1230;--text:#2C2440;--muted:#5A5270;--faint:#8A8298;--pink:#E11D8F;--indigo:#6366F1;--cyan:#0891B2;--amber:#D97706;--mint:#059669;--line:rgba(26,18,48,.10);--shadow:0 14px 34px rgba(26,18,48,.08);--radius:20px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto;object-fit:contain}button,input{font:inherit}.masthead{position:fixed;z-index:60;top:0;left:0;right:0;height:72px;background:rgba(255,248,242,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.masthead-inner{width:min(1160px,calc(100% - 32px));height:100%;margin:auto;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}.icon-button{width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;display:grid;place-content:center;gap:4px;cursor:pointer}.icon-button span{width:18px;height:2px;background:var(--ink);display:block}.brand-mark{display:flex;align-items:center;justify-content:center;min-width:130px}.brand-mark img{max-height:38px;width:auto}.brand-mark strong{font-size:22px;color:var(--ink);letter-spacing:.08em}.mast-actions{justify-self:end;display:flex;align-items:center;gap:10px}.text-button{border:0;background:transparent;color:var(--ink);padding:10px 12px;cursor:pointer}.app-link,.primary-btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px;border-radius:999px;color:#fff;background:linear-gradient(135deg,#6366F1 0%,#E11D8F 55%,#D97706 100%);font-weight:700}.secondary-btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 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18px;color:var(--ink);font-size:clamp(28px,4vw,34px);line-height:1.25;letter-spacing:-.02em}.lead{font-size:17px;color:var(--muted);max-width:760px}.cover{padding:44px 0 34px}.cover-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}.vertical-kicker{writing-mode:vertical-rl;letter-spacing:.18em;color:var(--pink);font-weight:800;font-size:13px;float:left;margin-right:16px}.cover-copy p{max-width:680px}.hero-media{display:flex;justify-content:center}.hero-media img{max-height:360px;border-radius:24px;box-shadow:var(--shadow)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.section{padding:36px 0}.section.alt{background:rgba(255,255,255,.54);border-top:1px solid rgba(26,18,48,.05);border-bottom:1px solid rgba(26,18,48,.05)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}.section-head h2{margin:0;color:var(--ink);font-size:26px}.section-head p{margin:0;color:var(--muted);max-width:620px}.tag-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tag-card,.card,.soft-card,.number-card,.step-card,.policy-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.tag-card{box-shadow:none}.dot{width:10px;height:10px;border-radius:50%;display:inline-block;margin-right:8px}.dot.pink{background:var(--pink)}.dot.indigo{background:var(--indigo)}.dot.cyan{background:var(--cyan)}.dot.amber{background:var(--amber)}.tag-card h3,.card h3,.soft-card h3,.step-card h3,.policy-card h3{margin:10px 0 8px;color:var(--ink)}.tag-card p,.card p,.soft-card p,.step-card p,.policy-card p{margin:0;color:var(--muted)}.inline-link{display:inline-flex;margin-top:12px;color:var(--indigo);font-weight:700}.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}.feature-grid img{max-height:330px;margin:auto;border-radius:20px}.chapter-list{display:grid;gap:10px}.chapter-item{display:grid;grid-template-columns:56px 1fr;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}.chapter-item b{font-size:22px;color:var(--pink)}.chapter-item a{font-weight:800;color:var(--ink)}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card-grid.uneven .card:nth-child(2){transform:translateY(16px)}.card img{max-height:220px;margin:0 auto 16px;border-radius:16px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.step-no,.big-no{font-size:38px;line-height:1;font-weight:900;background:linear-gradient(135deg,var(--indigo),var(--pink),var(--amber));-webkit-background-clip:text;color:transparent}.theme-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.theme-grid .soft-card:nth-child(2),.theme-grid .soft-card:nth-child(5){padding-bottom:42px}.shelf-list{display:grid;gap:10px}.shelf-row{display:grid;grid-template-columns:150px 1fr auto;gap:20px;align-items:center;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:16px}.shelf-row strong{color:var(--ink)}.shelf-row span{color:var(--muted)}.number-list{display:grid;gap:14px}.number-card{display:grid;grid-template-columns:90px 1fr;gap:18px;align-items:start}.timeline{position:relative;margin-left:18px;padding-left:34px}.timeline:before{content:"";position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--pink),var(--indigo),var(--cyan),var(--amber))}.timeline-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;margin:0 0 16px}.timeline-item:before{content:"";position:absolute;left:-36px;top:26px;width:14px;height:14px;border-radius:50%;background:var(--pink);box-shadow:0 0 0 5px var(--paper)}.status{display:inline-flex;padding:4px 10px;border-radius:999px;background:var(--soft);color:var(--ink);font-size:13px;font-weight:800}.prose{max-width:860px}.prose 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10px;color:var(--ink)}.faq-item p{margin:0;color:var(--text)}.site-footer{margin-top:60px;background:#1A1230;color:#F7EFE6;padding:46px 0 calc(34px + env(safe-area-inset-bottom))}.footer-inner{width:min(1160px,calc(100% - 32px));margin:auto}.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:28px}.footer-brand img{max-height:36px;width:auto;filter:brightness(0) invert(1)}.footer-brand strong,.footer-brand span{display:block}.footer-brand span{opacity:.65;font-size:12px;letter-spacing:.14em}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.footer-grid h2{font-size:15px;margin:0 0 12px;color:#fff}.footer-grid a{display:block;padding:5px 0;color:#F7EFE6;opacity:.82}.footer-note{margin:28px 0 0;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);opacity:.76}.copyright{opacity:.55;font-size:13px}.overlay{position:fixed;z-index:80;inset:0;background:rgba(26,18,48,.48);opacity:0;transition:.2s}.overlay.show{opacity:1}.book-menu,.search-layer{position:fixed;z-index:90;inset:0;display:grid;place-items:center;padding:24px;visibility:hidden;pointer-events:none}.book-menu.open,.search-layer.open{visibility:visible;pointer-events:auto}.book-panel{width:min(840px,100%);max-height:86vh;overflow:auto;background:#fff;border-radius:24px;box-shadow:0 24px 80px rgba(26,18,48,.26)}.book-head,.search-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;border-bottom:1px solid var(--line)}.book-brand{display:flex;align-items:center;gap:12px}.book-brand img{max-height:34px;width:auto}.book-brand strong,.book-brand span{display:block}.book-brand span{font-size:11px;color:var(--faint);letter-spacing:.12em}.close-button{width:44px;height:44px;border:1px solid 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@media(max-width:860px){.chapter-band{display:none}.site-main{padding-top:72px}.masthead-inner{grid-template-columns:64px 1fr 72px}.text-button{display:none}.app-link{padding:0 12px;font-size:14px}.cover-grid,.feature-grid,.app-product{grid-template-columns:1fr}.cover{padding-top:30px}.hero-media img{max-height:320px}.tag-grid{grid-template-columns:repeat(2,1fr)}.card-grid,.theme-grid{grid-template-columns:1fr 1fr}.steps{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.book-pages{grid-template-columns:1fr}.book-page:first-child{border-right:0;border-bottom:1px solid var(--line);box-shadow:none}.mobile-nav{position:fixed;z-index:70;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.96);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr);backdrop-filter:blur(12px)}.mobile-nav a{display:grid;place-items:center;min-height:50px;font-size:13px;color:var(--muted)}.mobile-nav a.active{color:var(--pink);font-weight:800}.site-footer{padding-bottom:calc(76px + env(safe-area-inset-bottom))}.number-card{grid-template-columns:70px 1fr}.shelf-row{grid-template-columns:1fr}.card-grid.uneven .card:nth-child(2){transform:none}}
@media(max-width:560px){.container{width:min(100% - 32px,1160px)}.brand-mark{min-width:0}.brand-mark strong{font-size:18px}.page-hero{padding:42px 0 24px}.section{padding:28px 0}.tag-grid,.card-grid,.theme-grid,.steps,.index-list{grid-template-columns:1fr}.section-head{align-items:flex-start;flex-direction:column}.book-menu,.search-layer{padding:12px}.book-panel{max-height:90vh;border-radius:18px}.book-page{padding:18px}.search-card{border-radius:18px}.vertical-kicker{display:none}.cover-copy h1{font-size:30px}.app-visual{grid-template-columns:1fr}.app-visual .app-icon{max-height:84px}.number-card{grid-template-columns:54px 1fr;padding:18px}.big-no{font-size:32px}.footer-grid{grid-template-columns:1fr 1fr;gap:24px 16px}}