:root{--paper:#FFF8F2;--white:#fff;--soft:#F3EBE3;--ink:#1A1230;--text:#2C2440;--muted:#5A5270;--aux:#8A8298;--pink:#E11D8F;--indigo:#6366F1;--cyan:#0891B2;--amber:#D97706;--mint:#059669;--border:rgba(26,18,48,.10);--shadow:0 14px 34px rgba(26,18,48,.08);--max:1160px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--text);font:16px/1.75 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden;padding-top:118px}body.layer-open{overflow:hidden}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(99,102,241,.35);outline-offset:3px}img{display:block;max-width:100%;height:auto}.skip-link{position:fixed;left:16px;top:-80px;z-index:1000;background:var(--ink);color:white;padding:10px 14px;border-radius:10px}.skip-link:focus{top:12px}.masthead{position:fixed;left:0;right:0;top:0;height:72px;background:var(--paper);z-index:80;border-bottom:1px solid var(--border)}.masthead-inner{max-width:var(--max);height:100%;margin:auto;padding:0 16px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}.square-btn{width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:12px;display:grid;place-content:center;gap:4px;cursor:pointer}.square-btn span{width:18px;height:2px;background:var(--ink);display:block}.brand{display:flex;justify-content:center;align-items:center;min-width:140px}.brand img{max-height:38px;width:auto}.brand strong{font-size:22px;letter-spacing:.08em}.mast-actions{justify-self:end;display:flex;gap:8px;align-items:center}.search-btn,.app-link,.close-btn{min-height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--ink);font-weight:700;cursor:pointer}.app-link{display:inline-flex;align-items:center;background:linear-gradient(135deg,var(--indigo) 0%,var(--pink) 55%,var(--amber) 100%);color:#fff;border:0}.chapter-band{position:fixed;left:0;right:0;top:72px;height:46px;background:#fff;border-bottom:1px solid var(--border);z-index:75}.chapter-inner{max-width:var(--max);height:100%;margin:auto;display:flex;align-items:center;justify-content:center;gap:34px}.chapter-inner a{height:46px;display:grid;place-items:center;position:relative;color:var(--muted);font-weight:700}.chapter-inner a.active,.chapter-inner a:hover{color:var(--ink)}.chapter-inner a.active:after{content:"";height:3px;background:var(--pink);border-radius:99px;position:absolute;left:8px;right:8px;bottom:0}main{min-height:60vh}.container{width:min(calc(100% - 32px),var(--max));margin:auto}.hero{padding:56px 0 44px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(280px,.95fr);gap:42px;align-items:center}.eyebrow{font-size:13px;letter-spacing:.22em;color:var(--pink);font-weight:800;text-transform:uppercase}.hero h1,.page-hero h1{font-size:clamp(28px,4vw,34px);line-height:1.25;color:var(--ink);margin:10px 0 18px}.hero p,.page-hero p{max-width:760px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.btn{min-height:44px;padding:10px 20px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-weight:800;border:1px solid var(--border);background:#fff;color:var(--ink)}.btn.primary{background:linear-gradient(135deg,var(--indigo) 0%,var(--pink) 55%,var(--amber) 100%);color:#fff;border:0}.media-slot{min-height:220px;border-radius:22px;background:linear-gradient(145deg,#fff,#f2e8e0);border:1px solid var(--border);display:grid;place-items:center;overflow:hidden}.media-slot img{max-height:360px;width:100%;object-fit:contain}.section{padding:34px 0}.section.alt{background:var(--white)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:20px}.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,.list-card,.faq-item,.article-block{background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow)}.tag-card{padding:18px;min-height:132px}.dot{width:10px;height:10px;border-radius:50%;display:inline-block;margin-right:8px;background:var(--pink)}.tag-card:nth-child(4n+2) .dot{background:var(--indigo)}.tag-card:nth-child(4n+3) .dot{background:var(--cyan)}.tag-card:nth-child(4n) .dot{background:var(--amber)}.tag-card h3{margin:8px 0 6px;color:var(--ink)}.tag-card p{margin:0;color:var(--muted)}.text-link{display:inline-block;margin-top:8px;color:var(--indigo);font-weight:800}.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:start}.number-list{display:grid;gap:10px}.number-list a{display:grid;grid-template-columns:54px 1fr;gap:14px;padding:16px;background:#fff;border:1px solid var(--border);border-radius:16px}.number-list strong{font-size:24px;color:var(--pink)}.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}.card{overflow:hidden}.card-body{padding:20px}.card h3{margin:0 0 8px;color:var(--ink)}.card p{margin:0}.card .media-slot{border:0;border-radius:0;box-shadow:none;min-height:180px}.steps,.six-grid,.shelf-list,.big-rank,.timeline{display:grid;gap:14px}.steps{grid-template-columns:repeat(4,1fr)}.step{background:#fff;border:1px solid var(--border);border-radius:18px;padding:20px}.step b{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;color:#fff;background:var(--indigo)}.six-grid{grid-template-columns:repeat(3,1fr)}.six-grid article:nth-child(2n){transform:translateY(10px)}.shelf-item{display:grid;grid-template-columns:70px 1fr auto;gap:18px;align-items:center;padding:18px 20px;background:#fff;border-bottom:1px solid var(--border)}.shelf-list{border-radius:18px;overflow:hidden;border:1px solid var(--border)}.shelf-item .mark{font-size:30px;color:var(--amber);font-weight:900}.rank-row{display:grid;grid-template-columns:90px 1fr;gap:20px;padding:22px;background:#fff;border:1px solid var(--border);border-radius:18px}.rank-row .num{font-size:48px;line-height:1;font-weight:900;color:var(--pink)}.rank-row:nth-child(2) .num{color:var(--indigo)}.rank-row:nth-child(3) .num{color:var(--cyan)}.rank-row:nth-child(4) .num{color:var(--amber)}.rank-row:nth-child(5) .num{color:var(--mint)}.timeline{position:relative;padding-left:28px}.timeline:before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:rgba(99,102,241,.25)}.timeline article{position:relative;background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px}.timeline article:before{content:"";position:absolute;width:12px;height:12px;border-radius:50%;background:var(--pink);left:-27px;top:24px}.status{font-size:13px;font-weight:800;color:var(--mint)}.page-hero{padding:54px 0 28px}.page-hero .lede{font-size:18px;color:var(--muted)}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px;align-items:start;padding-bottom:52px}.article-stack{display:grid;gap:18px}.article-block{padding:24px}.article-block h2,.article-block h3{margin-top:0;color:var(--ink)}.aside-box{position:sticky;top:140px;background:var(--soft);border-radius:18px;padding:20px}.aside-box h2{font-size:18px;margin-top:0}.aside-box a{display:block;padding:8px 0;border-bottom:1px solid var(--border)}.faq-list{display:grid;gap:14px}.faq-item{padding:20px}.faq-item h2,.faq-item h3{margin:0 0 8px;color:var(--ink)}.notice{padding:18px 20px;border-left:4px solid 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img{max-height:30px;width:auto}.book-pages{display:grid;grid-template-columns:1fr 1fr;background:linear-gradient(90deg,#fff 0 49.7%,#eee 50%,#fff 50.3%)}.book-pages section{padding:22px}.book-pages h2{color:var(--pink);font-size:16px}.book-pages a{display:block;padding:10px 0}.book-pages b,.book-pages span{display:block}.book-pages span{font-size:13px;color:var(--muted)}.search-layer{width:min(calc(100% - 32px),620px)}.search-card{background:#fff;border-radius:22px;box-shadow:0 30px 80px rgba(26,18,48,.25);overflow:hidden}.search-head h2{margin:0}.search-look{display:block;padding:22px;color:var(--muted)}.search-look input{width:100%;min-height:48px;margin-top:10px;border:1px solid var(--border);border-radius:14px;padding:0 14px;font:inherit;color:var(--ink)}.preset-links{padding:0 22px 24px;display:flex;flex-wrap:wrap;gap:10px}.preset-links a{padding:9px 14px;border-radius:999px;background:var(--soft);font-weight:700}.site-footer{background:var(--ink);color:#F7EFE6;padding:46px 0 70px}.footer-inner{width:min(calc(100% - 32px),var(--max));margin:auto}.footer-brand{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:start;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.12)}.footer-logo{display:flex;gap:14px;align-items:center}.footer-logo img{max-height:38px;width:auto}.footer-logo span{display:grid}.footer-logo small{opacity:.72}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:28px 0}.footer-grid h2{font-size:15px;color:#fff}.footer-grid a{display:block;color:#F7EFE6;opacity:.82;padding:5px 0}.copyright{opacity:.68;font-size:14px}.mobile-nav{display:none}.prose p{margin:0 0 1em}.prose ul{padding-left:1.2em}.kicker{color:var(--pink);font-weight:800}.mini-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.quote{font-size:19px;color:var(--ink);padding:20px;border-radius:16px;background:var(--soft)}
@media(max-width:820px){body{padding-top:72px;padding-bottom:calc(58px + env(safe-area-inset-bottom))}.chapter-band{display:none}.masthead-inner{grid-template-columns:64px 1fr 92px;padding:0 10px}.brand{min-width:0}.brand img{max-width:150px}.search-btn{display:none}.app-link{padding:0 12px}.hero{padding-top:34px}.hero-grid,.split,.content-grid,.footer-brand{grid-template-columns:1fr}.tag-grid,.steps{grid-template-columns:repeat(2,1fr)}.cards-3,.six-grid{grid-template-columns:1fr}.six-grid article:nth-child(2n){transform:none}.aside-box{position:static}.footer-grid{grid-template-columns:repeat(2,1fr)}.book-pages{grid-template-columns:1fr;background:#fff}.book-menu{max-height:86vh}.mobile-nav{position:fixed;left:0;right:0;bottom:0;z-index:90;display:grid;grid-template-columns:repeat(5,1fr);min-height:50px;padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border)}.mobile-nav a{display:grid;place-items:center;font-size:13px;font-weight:800}.mobile-nav a.active{color:var(--pink)}.site-footer{padding-bottom:90px}}
@media(max-width:520px){.tag-grid,.steps,.mini-grid{grid-template-columns:1fr}.section-head{align-items:start;flex-direction:column}.shelf-item{grid-template-columns:48px 1fr}.shelf-item .text-link{grid-column:2}.rank-row{grid-template-columns:64px 1fr}.rank-row .num{font-size:38px}.footer-grid{grid-template-columns:1fr 1fr;gap:12px}.hero .media-slot{min-height:160px}.article-block{padding:20px}}