:root{--paper:#FFF8F2;--deep:#fff;--soft:#F3EBE3;--ink:#1A1230;--text:#2C2440;--muted:#5A5270;--quiet:#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;--mast:72px;--chap:46px}*{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","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.78;overflow-x:hidden}body.modal-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.skip-link{position:fixed;left:16px;top:-80px;z-index:999;background:var(--ink);color:#fff;padding:10px 16px;border-radius:999px}.skip-link:focus{top:10px}.site-masthead{height:var(--mast);position:fixed;inset:0 0 auto;z-index:50;background:rgba(255,248,242,.96);border-bottom:1px solid var(--border);backdrop-filter:blur(10px)}.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-button,.text-button,.close-button{border:0;background:transparent;color:var(--ink);cursor:pointer}.square-button{width:44px;height:44px;border:1px solid var(--border);border-radius:14px;font-size:20px;display:grid;place-items:center}.brand-lockup{justify-self:center;min-height:44px;display:flex;align-items:center}.brand-logo{display:block;max-height:38px;max-width:210px;width:auto}.brand-text{font-size:22px;font-weight:800;letter-spacing:.08em;color:var(--ink)}.mast-actions{justify-self:end;display:flex;gap:10px;align-items:center}.text-button,.app-link{min-height:44px;padding:0 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var(--chap));min-height:70vh}.wrap{width:min(calc(100% - 32px),var(--max));margin-inline:auto}.hero,.page-hero{padding:56px 0 32px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(280px,.95fr);gap:34px;align-items:center}.eyebrow{display:inline-flex;gap:10px;align-items:center;color:var(--pink);font-weight:800;font-size:13px;letter-spacing:.16em;text-transform:uppercase}.eyebrow:before{content:"";width:28px;height:2px;background:currentColor}.hero h1,.page-hero h1{font-size:clamp(28px,4vw,34px);line-height:1.25;color:var(--ink);margin:15px 0}.lead{font-size:17px;color:var(--muted);max-width:760px}.hero-copy p{max-width:650px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.btn{min-height:44px;padding:10px 18px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-weight:750;border:1px solid var(--border)}.btn-primary{background:linear-gradient(135deg,#6366F1 0%,#E11D8F 55%,#D97706 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p{margin:0;max-width:640px;color:var(--muted)}.tag-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tag-card,.content-card,.note-card,.step-card,.topic-card,.faq-item,.policy-card{background:#fff;border:1px solid var(--border);border-radius:18px;padding:20px;box-shadow:0 8px 22px rgba(26,18,48,.04)}.tag-card{position:relative;padding-left:44px;min-height:150px}.tag-card:before{content:"";position:absolute;left:20px;top:25px;width:10px;height:10px;border-radius:50%;background:var(--dot,var(--pink))}.tag-card:nth-child(4n+2){--dot:var(--indigo)}.tag-card:nth-child(4n+3){--dot:var(--cyan)}.tag-card:nth-child(4n+4){--dot:var(--amber)}.tag-card h3,.content-card h3,.note-card h3,.step-card h3,.topic-card h3,.policy-card h2{color:var(--ink);margin:0 0 8px}.tag-card a,.text-link{color:var(--pink);font-weight:750}.feature-layout{display:grid;grid-template-columns:minmax(0,1fr) 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@media(max-width:700px){:root{--chap:0px}.chapter-band{display:none}.masthead-inner{grid-template-columns:44px 1fr auto;gap:8px}.search-trigger{display:none}.app-link{padding:0 12px;font-size:14px}.brand-logo{max-width:150px}.brand-text{font-size:18px}.site-main{padding-top:var(--mast)}.hero,.page-hero{padding:34px 0 24px}.hero-grid,.feature-layout,.app-panel{grid-template-columns:1fr}.hero-grid{gap:20px}.hero-copy{order:1}.media-frame{order:2;min-height:190px}.media-placeholder{min-height:210px}.tag-grid,.steps,.topic-grid,.grid-2,.grid-3,.index-grid,.contact-options{grid-template-columns:1fr}.topic-card:nth-child(2),.topic-card:nth-child(5),.content-card:nth-child(2),.content-card:nth-child(3){transform:none;margin-top:0}.masonry-three{grid-template-columns:1fr}.masonry-three .content-card:nth-child(3){grid-column:auto}.shelf-row{grid-template-columns:54px 1fr}.shelf-row>a{grid-column:2}.rank-row{grid-template-columns:58px 1fr}.big-number{font-size:34px}.footer-groups{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:90px}.book-spread{grid-template-columns:1fr}.book-page:first-child{border-right:0;border-bottom:1px solid var(--border)}.modal{max-height:86vh}.mobile-nav{position:fixed;z-index:60;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:rgba(255,255,255,.97);border-top:1px solid var(--border);box-shadow:0 -8px 24px rgba(26,18,48,.07)}.mobile-nav a{display:flex;min-width:0;align-items:center;justify-content:center;flex-direction:column;gap:1px;font-size:11px;color:var(--muted)}.mobile-nav a span{font-size:17px;line-height:1}.mobile-nav a.is-current{color:var(--pink);font-weight:800}.section{padding:30px 0}.section-head{display:block}.section-head p{margin-top:8px}}
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@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

.spaced-notice{margin-top:18px}