:root{--bg:#FFF7FA;--surface:#FFFFFF;--soft:#FFEAF2;--title:#4A1630;--text:#5C2A3E;--muted:#8A4A62;--faint:#B07A90;--brand:#E85A8B;--bright:#FF7AA8;--deep:#C43B6E;--pale:#FFE1EC;--border:rgba(232,90,139,.16);--shadow:0 14px 34px rgba(196,59,110,.10);--rail:88px;--top:56px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}
body.overlay-open{overflow:hidden}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
img{max-width:100%;height:auto;display:block}
button{cursor:pointer}
.skip-link{position:fixed;left:16px;top:-60px;z-index:2000;background:var(--title);color:#fff;padding:10px 16px;border-radius:999px}.skip-link:focus{top:12px}
.desktop-rail{position:fixed;inset:0 auto 0 0;width:var(--rail);background:var(--soft);border-right:1px solid var(--border);z-index:900;display:flex;flex-direction:column;align-items:center;padding:12px 8px 16px;gap:14px}
.rail-brand{width:56px;height:56px;border-radius:18px;background:#fff;display:grid;place-items:center;box-shadow:var(--shadow);font-size:13px;font-weight:800;color:var(--deep);overflow:hidden}.rail-brand img{width:100%;height:100%;object-fit:cover}
.rail-nav{display:flex;flex-direction:column;gap:8px;width:100%}.rail-link,.rail-button{min-height:48px;border-radius:999px;display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--muted);border:0;background:transparent;width:100%}.rail-link:hover,.rail-button:hover,.rail-link:focus-visible,.rail-button:focus-visible{background:#fff;color:var(--deep);outline:2px solid rgba(232,90,139,.24);outline-offset:2px}.rail-link.is-current{background:var(--deep);color:#fff}.rail-tools{margin-top:auto;display:flex;flex-direction:column;gap:8px;width:100%}
.topbar{position:fixed;top:0;left:var(--rail);right:0;height:var(--top);background:rgba(255,247,250,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);z-index:850}.topbar-inner{height:100%;max-width:1180px;margin:0 auto;padding:0 18px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}.topbar-logo{grid-column:2;justify-self:center;min-height:44px;display:flex;align-items:center;color:var(--title)}.topbar-logo img{height:36px;width:auto;max-width:200px;object-fit:contain}.topbar-logo strong{font-size:18px;letter-spacing:.03em}.topbar-app{grid-column:3;justify-self:end;min-height:44px;padding:0 16px;border-radius:999px;display:flex;align-items:center;background:linear-gradient(135deg,var(--bright) 0%,var(--brand) 55%,var(--deep) 100%);color:#fff;font-weight:800;font-size:14px}.topbar-app:hover,.topbar-app:focus-visible{filter:brightness(.98);outline:3px solid rgba(232,90,139,.22);outline-offset:3px}.mobile-menu-button{display:none}
.site-main{margin-left:calc(var(--rail) + 24px);padding:calc(var(--top) + 28px) 18px 56px}.page-wrap{max-width:1180px;margin:0 auto}.page-hero,.home-cover{background:var(--surface);border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow);padding:28px}.eyebrow{margin:0 0 8px;color:var(--deep);font-size:13px;font-weight:900;letter-spacing:.14em}.page-hero h1,.home-cover h1{margin:0;color:var(--title);font-size:clamp(28px,4vw,34px);line-height:1.25}.lead{font-size:16px;color:var(--muted);max-width:850px;margin:14px 0 0}.button-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.button{min-height:44px;padding:0 18px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-weight:800}.button.primary{background:linear-gradient(135deg,var(--bright) 0%,var(--brand) 55%,var(--deep) 100%);color:#fff}.button.secondary{background:#fff;color:var(--deep);border:1px solid rgba(196,59,110,.28)}.button:hover,.button:focus-visible{transform:translateY(-1px);outline:3px solid rgba(232,90,139,.18);outline-offset:2px}
.hero-media,.section-media,.image-placeholder{margin-top:22px;border-radius:18px;background:linear-gradient(135deg,var(--pale),#fff 62%);border:1px dashed rgba(196,59,110,.22);overflow:hidden}.hero-media img,.section-media img{width:100%;max-height:360px;object-fit:cover}.image-placeholder{min-height:190px;display:grid;place-items:center;color:var(--faint);font-weight:800;letter-spacing:.08em}.hero-media.image-placeholder{min-height:220px;margin-top:22px}.section-media.image-placeholder{min-height:180px}
.content-section{margin-top:26px}.section-head{display:flex;justify-content:space-between;gap:18px;align-items:end;margin-bottom:14px}.section-head h2{margin:0;color:var(--title);font-size:24px}.section-head p{margin:0;color:var(--muted);font-size:14px}.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.card-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.content-card,.number-card,.status-card,.note-paper,.book-card,.person-card,.index-card,.step-card,.term-card,.faq-item{background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow);padding:20px}.content-card h3,.number-card h3,.status-card h3,.note-paper h3,.book-card h3,.person-card h3,.index-card h3,.step-card h3,.term-card h3,.faq-item h3{margin:0 0 8px;color:var(--title);font-size:19px}.content-card p,.number-card p,.status-card p,.note-paper p,.book-card p,.person-card p,.index-card p,.step-card p,.term-card p,.faq-item p{margin:0;color:var(--text)}.muted{color:var(--muted)}
.prose{margin-top:24px;background:#fff;border:1px solid var(--border);border-radius:20px;padding:26px;box-shadow:var(--shadow)}.prose h2{color:var(--title);font-size:23px;margin:30px 0 8px}.prose h2:first-child{margin-top:0}.prose h3{color:var(--deep);font-size:18px;margin:22px 0 6px}.prose p{margin:0 0 14px}.prose ul{padding-left:1.2em}.prose li{margin:.4em 0}.prose a{color:var(--deep);font-weight:800;text-decoration:underline;text-underline-offset:3px}
.polaroid-wall{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:start}.polaroid{background:#fff;border:1px solid var(--border);border-radius:18px;padding:12px 12px 18px;box-shadow:var(--shadow)}.polaroid:nth-child(2n){transform:rotate(1.1deg)}.polaroid:nth-child(3n){transform:rotate(-1deg)}.polaroid h3{color:var(--title);margin:14px 4px 6px}.polaroid p{margin:0 4px;color:var(--text)}.polaroid img,.polaroid .image-placeholder{border-radius:14px;margin:0;min-height:150px}.polaroid a{display:block}.polaroid a:focus-visible{outline:3px solid rgba(232,90,139,.2);outline-offset:4px;border-radius:14px}
.notebook{background:#fff;border:1px solid var(--border);border-radius:20px;padding:24px;box-shadow:var(--shadow)}.notebook-row{display:grid;grid-template-columns:72px 1fr;gap:16px;padding:15px 0;border-bottom:1px solid var(--border)}.notebook-row:last-child{border-bottom:0}.notebook-num{font-size:26px;font-weight:900;color:var(--brand)}.notebook-row h3{margin:0 0 4px;color:var(--title)}.notebook-row p{margin:0}
.book-shelf{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.book-card{min-height:250px;display:flex;flex-direction:column}.book-cover{aspect-ratio:3/4;border-radius:15px;background:linear-gradient(160deg,var(--pale),#fff);border:1px solid var(--border);display:flex;align-items:flex-end;padding:16px;color:var(--title);font-weight:900;margin-bottom:14px}
.big-number{font-size:54px;line-height:1;color:var(--brand);font-weight:900;margin-bottom:12px}.status-label{display:inline-flex;min-height:32px;align-items:center;padding:0 12px;border-radius:999px;background:var(--pale);color:var(--deep);font-size:13px;font-weight:900;margin-bottom:12px}.editor-mark{display:inline-flex;padding:4px 10px;border-radius:999px;background:var(--pale);color:var(--deep);font-size:12px;font-weight:900;margin-bottom:10px}
.app-feature{display:grid;grid-template-columns:minmax(260px,.8fr) 1.2fr;gap:22px;align-items:center}.app-feature .section-media{margin:0}.mini-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}.mini-brand img{width:46px;height:46px;border-radius:14px;object-fit:cover}.mini-brand .image-placeholder{width:46px;height:46px;min-height:46px;margin:0;border-radius:14px;font-size:0}.mini-brand .image-placeholder span{font-size:10px}.app-copy h2{margin:0;color:var(--title)}
.letter-layout{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.note-paper{background:linear-gradient(#fff,#fff8fb)}.note-paper p{white-space:normal}.note-sign{margin-top:14px!important;color:var(--muted)!important;font-size:14px}
.index-list{display:grid;gap:14px}.index-card{display:grid;grid-template-columns:110px 1fr;gap:18px;align-items:start}.index-key{color:var(--brand);font-weight:900;font-size:18px}.steps{counter-reset:step;display:grid;gap:14px}.step-card{position:relative;padding-left:72px}.step-card:before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;left:20px;top:20px;color:var(--brand);font-weight:900;font-size:24px}
.term-list{display:grid;gap:14px}.faq-list{display:grid;gap:14px}.faq-item h3{font-size:18px}.faq-item p{line-height:1.8}
.link-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.link-strip a{min-height:44px;padding:0 14px;border-radius:999px;background:var(--soft);color:var(--deep);font-weight:800;display:inline-flex;align-items:center}.link-strip a:hover,.link-strip a:focus-visible{background:var(--pale);outline:2px solid rgba(232,90,139,.22);outline-offset:2px}
.site-footer{margin-left:var(--rail);background:var(--title);color:#F8D6E4;padding:46px 18px 26px}.footer-inner{max-width:1180px;margin:0 auto}.footer-brand{display:flex;align-items:center;gap:14px;margin-bottom:24px}.footer-brand img{height:38px;width:auto;max-width:210px}.footer-brand strong{display:block;color:#fff;font-size:21px}.footer-brand span{font-size:12px;letter-spacing:.14em}.footer-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.footer-grid h2{font-size:15px;color:#fff;margin:0 0 10px}.footer-grid a{display:block;padding:5px 0;font-size:14px;color:#F8D6E4}.footer-grid a:hover,.footer-grid a:focus-visible{color:#fff;text-decoration:underline}.footer-note{margin:24px 0 8px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);font-size:13px}.footer-copy{margin:0;font-size:12px;color:#E9B7CB}
.overlay-shell{position:fixed;inset:0;z-index:1400;visibility:hidden;pointer-events:none}.overlay-shell.is-open{visibility:visible;pointer-events:auto}.overlay-backdrop{position:absolute;inset:0;background:rgba(74,22,48,.32)}.catalog-panel{position:relative;width:100%;height:100%;overflow:auto;background:var(--bg);padding:24px max(18px,calc((100vw - 1180px)/2));transform:translateY(10px);opacity:0;transition:.2s ease}.overlay-shell.is-open .catalog-panel,.overlay-shell.is-open .search-card{transform:none;opacity:1}.catalog-head{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;margin-bottom:22px}.catalog-head h2{margin:0;color:var(--title)}.catalog-logo{justify-self:start}.catalog-logo img{height:34px;width:auto}.close-button{width:44px;height:44px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--deep);font-size:26px;line-height:1;justify-self:end}.close-button:hover,.close-button:focus-visible{outline:3px solid rgba(232,90,139,.2);outline-offset:2px}.catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.catalog-grid>section{background:#fff;border:1px solid var(--border);border-radius:20px;padding:18px}.catalog-grid h3{margin:0 0 12px;color:var(--title)}.catalog-grid a{display:block;border-radius:14px;padding:11px 12px;margin:4px 0}.catalog-grid a:hover,.catalog-grid a:focus-visible{background:var(--soft);outline:none}.catalog-grid strong{display:block;color:var(--title)}.catalog-grid span{display:block;color:var(--muted);font-size:13px;margin-top:2px;line-height:1.55}
.search-overlay{display:grid;place-items:center}.search-card{position:relative;z-index:2;width:min(620px,calc(100% - 32px));background:#fff;border:1px solid var(--border);border-radius:22px;padding:26px;box-shadow:0 30px 80px rgba(74,22,48,.2);transform:translateY(10px);opacity:0;transition:.2s ease}.search-card h2{margin:0;color:var(--title);font-size:26px}.search-close{position:absolute;right:18px;top:18px}.search-look{min-height:48px;border:1px solid var(--border);background:var(--bg);border-radius:999px;margin:20px 0 16px;padding:0 18px;display:flex;align-items:center;color:var(--faint);font-size:14px}.search-presets{display:flex;flex-wrap:wrap;gap:10px}.search-presets a{min-height:44px;padding:0 14px;border-radius:999px;background:var(--soft);display:inline-flex;align-items:center;color:var(--deep);font-weight:800}.search-presets a:hover,.search-presets a:focus-visible{background:var(--pale);outline:2px solid rgba(232,90,139,.22);outline-offset:2px}
.mobile-bottom-nav{display:none}
@media (max-width:980px){.card-grid.four,.book-shelf{grid-template-columns:repeat(2,minmax(0,1fr))}.card-grid.three,.polaroid-wall{grid-template-columns:repeat(2,minmax(0,1fr))}.app-feature{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:760px){:root{--top:56px}.desktop-rail{display:none}.topbar{left:0}.topbar-inner{padding:0 12px;grid-template-columns:1fr auto 1fr}.mobile-menu-button{display:inline-flex;align-items:center;justify-content:center;justify-self:start;min-width:44px;min-height:44px;border:0;background:transparent;color:var(--deep);font-weight:800}.topbar-logo img{height:32px;max-width:150px}.topbar-app{padding:0 12px;font-size:13px}.site-main{margin-left:0;padding:calc(var(--top) + 20px) 16px 82px}.site-footer{margin-left:0;padding-bottom:86px}.page-hero,.home-cover{padding:22px}.card-grid,.card-grid.three,.card-grid.four,.polaroid-wall,.book-shelf,.letter-layout,.footer-grid{grid-template-columns:1fr}.polaroid:nth-child(n){transform:none}.index-card{grid-template-columns:1fr;gap:6px}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.catalog-panel{padding:18px 16px 80px}.catalog-head{grid-template-columns:1fr auto auto;gap:8px}.catalog-head h2{font-size:20px}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:1000;display:grid;grid-template-columns:repeat(5,1fr);min-height:50px;padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.96);border-top:1px solid var(--border);backdrop-filter:blur(10px)}.mobile-bottom-nav a{min-height:50px;display:grid;place-items:center;color:var(--muted);font-size:12px;font-weight:800}.mobile-bottom-nav a.is-current{color:var(--brand)}.overlay-shell{z-index:1500}.app-feature{display:block}.app-copy{margin-top:18px}.section-head{align-items:start;flex-direction:column;gap:4px}.notebook-row{grid-template-columns:54px 1fr}.big-number{font-size:46px}}
@media (max-width:520px){.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.catalog-grid>section{padding:12px}.catalog-grid a{padding:9px 8px}.catalog-grid span{font-size:12px}.page-hero h1,.home-cover h1{font-size:29px}.search-card{padding:22px 18px}.search-card h2{padding-right:48px;font-size:22px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.footer-grid a{font-size:13px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}