:root{--paper:#FFF8F2;--white:#FFFFFF;--soft:#F3EBE3;--ink:#1A1230;--text:#2C2440;--muted:#5A5270;--faint:#8A8298;--magenta:#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-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input{font:inherit}.skip-link{position:fixed;left:16px;top:-80px;background:var(--ink);color:#fff;padding:10px 16px;z-index:1200;border-radius:8px}.skip-link:focus{top:8px}.masthead{position:fixed;z-index:900;top:0;left:0;right:0;height:72px;background:rgba(255,248,242,.96);backdrop-filter:saturate(120%) blur(10px);border-bottom:1px solid var(--border)}.masthead-inner{width:min(var(--max),calc(100% - 32px));height:100%;margin:auto;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;color:var(--ink)}.square-btn span{width:18px;height:2px;background:currentColor;display:block;border-radius:2px}.brand{display:flex;align-items:center;justify-content:center;min-width:120px}.brand-logo{max-height:38px;width:auto}.brand-text{font-weight:900;font-size:22px;letter-spacing:.08em;color:var(--ink)}.masthead-actions{justify-self:end;display:flex;align-items:center;gap:10px}.text-btn,.app-btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:0 18px;border:1px solid var(--border);background:#fff;color:var(--ink);cursor:pointer}.app-btn{background:linear-gradient(135deg,#6366F1 0%,#E11D8F 55%,#D97706 100%);border:0;color:#fff;font-weight:700}.chapter-bar{position:fixed;z-index:850;top:72px;left:0;right:0;height:46px;background:#fff;border-bottom:1px solid var(--border)}.chapter-inner{width:min(var(--max),calc(100% - 32px));height:100%;margin:auto;display:flex;align-items:center;justify-content:center;gap:40px}.chapter-inner a{height:100%;display:flex;align-items:center;position:relative;color:var(--muted);font-size:15px}.chapter-inner a.is-current{color:var(--ink);font-weight:700}.chapter-inner a.is-current:after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px 3px 0 0;background:var(--magenta)}.site-main{padding-top:118px}.section-shell{width:min(var(--max),calc(100% - 32px));margin-left:auto;margin-right:auto}.section-space{padding-top:72px;padding-bottom:72px}.eyebrow{margin:0 0 10px;color:var(--magenta);font-weight:800;font-size:13px;letter-spacing:.14em;text-transform:uppercase}.hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(340px,.95fr);gap:56px;align-items:center;padding-top:64px;padding-bottom:58px;min-height:510px}.hero-copy{position:relative;padding-left:36px}.vertical-kicker{position:absolute;left:0;top:4px;margin:0;writing-mode:vertical-rl;letter-spacing:.25em;color:var(--faint);font-weight:700;font-size:13px}.hero h1,.inner-hero h1{margin:0;color:var(--ink);font-size:clamp(28px,4vw,34px);line-height:1.25;letter-spacing:-.02em}.lead{font-size:17px;line-height:1.95;color:var(--muted);margin:22px 0}.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;padding:0 22px;border-radius:999px;font-weight:700}.btn.primary{background:linear-gradient(135deg,#6366F1 0%,#E11D8F 55%,#D97706 100%);color:#fff;box-shadow:var(--shadow)}.btn.secondary{background:#fff;color:var(--ink);border:1px solid var(--border)}.hero-art{min-height:320px}.cover-image,.media-placeholder.cover-image{max-height:360px;width:100%;object-fit:cover;border-radius:22px;box-shadow:var(--shadow)}.media-placeholder{min-height:230px;border:1px solid var(--border);border-radius:20px;background:linear-gradient(135deg,rgba(99,102,241,.08),rgba(225,29,143,.06) 55%,rgba(217,119,6,.08)),linear-gradient(#fff,#fff)}.section-heading{max-width:760px;margin-bottom:30px}.section-heading h2,.feature-copy h2,.split-feature h2,.chart-section h2,.app-feature h2,.info-trio h2,.side-note h2{margin:0;color:var(--ink);font-size:28px;line-height:1.35}.section-heading p:last-child{color:var(--muted)}.tag-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tag-grid a{background:#fff;border:1px solid var(--border);border-radius:18px;padding:20px;min-height:132px;display:grid;grid-template-columns:14px 1fr;grid-template-rows:auto 1fr;column-gap:10px;box-shadow:0 8px 22px rgba(26,18,48,.04)}.tag-grid b{color:var(--ink)}.tag-grid span{grid-column:2;color:var(--muted);font-size:14px;line-height:1.6}.dot{width:9px;height:9px;border-radius:50%;margin-top:8px}.magenta{background:var(--magenta)}.indigo{background:var(--indigo)}.cyan{background:var(--cyan)}.amber{background:var(--amber)}.feature-band{display:grid;grid-template-columns:.88fr 1.12fr;gap:42px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:22px;padding:34px}.feature-image-inner,.wide-image,.media-placeholder.wide-image,.media-placeholder.feature-image-inner{width:100%;max-height:360px;object-fit:cover;border-radius:18px}.chapter-list{list-style:none;padding:0;margin:26px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:10px}.chapter-list li{display:flex;gap:12px;align-items:center;padding:12px 0;border-top:1px solid var(--border)}.chapter-list span{font-size:22px;font-weight:900;color:var(--indigo)}.chapter-list a{font-weight:700;color:var(--ink)}.masonry-three{display:grid;grid-template-columns:1.08fr .92fr 1fr;gap:18px;align-items:start}.story-card{background:#fff;border:1px solid var(--border);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}.story-card .card-image,.story-card .media-placeholder.card-image{width:100%;height:180px;object-fit:cover;border-radius:0;border:0}.story-card.tall .card-image,.story-card.tall .media-placeholder.card-image{height:250px}.story-card.medium{margin-top:48px}.story-card>div:last-child{padding:22px}.story-card h3{margin:5px 0 8px;color:var(--ink);font-size:22px}.story-card p{color:var(--muted)}.story-card a,.text-link{color:var(--magenta);font-weight:800}.card-no{font-size:12px;color:var(--faint);letter-spacing:.15em}.split-feature,.app-feature{display:grid;grid-template-columns:1fr 1fr;gap:42px;align-items:center}.steps{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:26px 0}.steps>div{padding:18px;border:1px solid var(--border);border-radius:16px;background:#fff}.steps b{color:var(--ink)}.steps p{margin:5px 0 0;color:var(--muted);font-size:14px}.theme-tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.theme-tiles a{min-height:150px;border-radius:18px;padding:22px;background:#fff;border:1px solid var(--border);display:flex;flex-direction:column;justify-content:flex-end}.theme-tiles a:nth-child(2),.theme-tiles a:nth-child(5){transform:translateY(22px)}.theme-tiles b{font-size:22px;color:var(--ink)}.theme-tiles span{font-size:14px;color:var(--muted)}.section-image-under{margin-top:40px}.compact-image{max-height:260px!important}.shelf-list{margin-top:22px;border-top:1px solid var(--ink)}.shelf-list a{display:grid;grid-template-columns:72px 180px 1fr;gap:12px;align-items:center;min-height:74px;border-bottom:1px solid var(--border)}.shelf-list span{font-size:26px;font-weight:900;color:var(--amber)}.shelf-list b{color:var(--ink)}.shelf-list em{font-style:normal;color:var(--muted)}.chart-section{display:grid;grid-template-columns:.85fr 1.15fr;gap:42px;align-items:center}.number-list a{display:grid;grid-template-columns:86px 1fr;align-items:center;border-bottom:1px solid var(--border);padding:9px 0}.number-list strong{font-size:36px;color:var(--indigo)}.number-list a:nth-child(2) strong{color:var(--magenta)}.number-list a:nth-child(3) strong{color:var(--cyan)}.number-list a:nth-child(4) strong{color:var(--amber)}.number-list a:nth-child(5) strong{color:var(--mint)}.number-list span{color:var(--muted)}.number-list b{color:var(--ink);margin-right:10px}.season-wrap{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}.vertical-timeline{position:relative;padding-left:30px}.vertical-timeline:before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:1px;background:var(--border)}.vertical-timeline>div{position:relative;padding:0 0 28px}.vertical-timeline i{position:absolute;width:15px;height:15px;left:-30px;top:7px;border-radius:50%;background:var(--magenta);box-shadow:0 0 0 6px var(--paper)}.vertical-timeline>div:nth-child(2) i{background:var(--indigo)}.vertical-timeline>div:nth-child(3) i{background:var(--amber)}.vertical-timeline b{color:var(--ink);font-size:18px}.vertical-timeline p{color:var(--muted);margin:4px 0}.app-visual{position:relative}.app-image,.media-placeholder.app-image{width:100%;max-height:360px;object-fit:cover;border-radius:22px}.app-icon{position:absolute;right:18px;bottom:18px;width:74px;height:74px;border-radius:20px;background:#fff;box-shadow:var(--shadow);display:grid;place-items:center;padding:8px}.app-icon img{max-height:58px}.info-trio{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.info-trio article{background:#fff;border:1px solid var(--border);border-radius:20px;padding:26px}.info-trio p{color:var(--muted)}.info-trio a{display:block;color:var(--magenta);font-weight:700;margin-top:8px}.inner-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center;padding-top:64px;padding-bottom:44px}.inner-visual{min-height:250px}.prose-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}.prose-main{background:#fff;border:1px solid var(--border);border-radius:22px;padding:34px 38px}.content-block{padding:10px 0 24px;border-bottom:1px solid var(--border)}.content-block:last-child{border-bottom:0}.content-block h2{color:var(--ink);font-size:22px;margin:0 0 8px}.content-block p{margin:0;color:var(--text)}.side-note{position:sticky;top:142px;background:var(--soft);border:1px solid var(--border);border-radius:20px;padding:24px}.side-note p{color:var(--muted)}.side-note a{display:block;padding:10px 0;border-top:1px solid var(--border);font-weight:700;color:var(--ink)}.faq-list{max-width:900px}.faq-list details{background:#fff;border:1px solid var(--border);border-radius:16px;margin-bottom:12px;padding:0 20px}.faq-list summary{min-height:58px;display:flex;align-items:center;cursor:pointer;font-weight:800;color:var(--ink);list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"＋";margin-left:auto;color:var(--magenta);font-size:22px}.faq-list details[open] summary:after{content:"－"}.faq-list p{margin:0 0 20px;color:var(--muted)}.site-footer{margin-top:72px;background:var(--ink);color:#F7EFE6}.footer-inner{width:min(var(--max),calc(100% - 32px));margin:auto;padding:56px 0 90px}.footer-brand{max-width:520px;margin-bottom:40px}.footer-logo{max-height:34px;width:auto;filter:brightness(0) invert(1)}.footer-logo-wrap strong{font-size:24px}.footer-en{letter-spacing:.18em;font-weight:800}.footer-directory{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;border-top:1px solid rgba(255,255,255,.16);padding-top:32px}.footer-directory h2{font-size:14px;color:#fff;margin:0 0 12px}.footer-directory a{display:block;color:#d9d2e4;padding:4px 0}.footer-notice{margin-top:38px;padding:18px 0;border-top:1px solid rgba(255,255,255,.16);border-bottom:1px solid rgba(255,255,255,.16);color:#d9d2e4}.footer-bottom{padding-top:18px;color:#bdb5ca;font-size:14px}.overlay{position:fixed;inset:0;background:rgba(26,18,48,.46);z-index:990;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.book-menu,.search-layer{position:fixed;z-index:1000;left:50%;top:50%;transform:translate(-50%,-48%) scale(.98);opacity:0;visibility:hidden;pointer-events:none;transition:.22s}.book-menu.is-open,.search-layer.is-open{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,-50%) scale(1)}.book-menu{width:min(840px,calc(100% - 32px));max-height:82vh;background:#fff;border-radius:22px;box-shadow:0 30px 90px rgba(26,18,48,.24);overflow:auto}.book-head{position:sticky;top:0;z-index:2;background:#fff;display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}.book-brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-weight:800}.book-brand img{max-height:30px;width:auto}.close-btn{width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:#fff;color:var(--ink);font-size:26px;line-height:1;cursor:pointer}.book-spread{display:grid;grid-template-columns:1fr 1fr;background:linear-gradient(90deg,#fff 0 49.7%,var(--soft) 49.8% 50.2%,#fff 50.3%)}.book-page{padding:26px}.menu-group h2{font-size:13px;color:var(--magenta);letter-spacing:.12em}.menu-group a{display:block;padding:10px 0;border-bottom:1px solid var(--border)}.menu-group b{display:block;color:var(--ink)}.menu-group span{display:block;color:var(--muted);font-size:13px;line-height:1.55}.search-layer{width:min(620px,calc(100% - 32px))}.search-card{position:relative;background:#fff;border-radius:22px;padding:34px;box-shadow:0 30px 90px rgba(26,18,48,.24)}.search-card .close-btn{position:absolute;right:16px;top:16px}.search-card h2{color:var(--ink);font-size:28px;margin:0 0 20px}.search-look{min-height:54px;border:1px solid var(--border);border-radius:999px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;color:var(--faint);background:var(--paper)}.preset-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.preset-links a{min-height:42px;display:inline-flex;align-items:center;border:1px solid var(--border);border-radius:999px;padding:0 16px;color:var(--ink)}.layer-open{overflow:hidden}.mobile-bottom{display:none}.btn:hover,.app-btn:hover,.text-btn:hover,.square-btn:hover,.preset-links a:hover,.chapter-inner a:hover,.footer-directory a:hover,.side-note a:hover{transform:translateY(-1px)}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(99,102,241,.38);outline-offset:3px}
@media(max-width:900px){.chapter-inner{gap:22px}.hero,.inner-hero,.feature-band,.split-feature,.chart-section,.season-wrap,.app-feature{grid-template-columns:1fr}.hero{padding-top:42px}.hero-art{min-height:250px}.tag-grid{grid-template-columns:repeat(2,1fr)}.masonry-three{grid-template-columns:1fr 1fr}.story-card.medium{margin-top:0}.story-card.tall{grid-row:span 2}.theme-tiles{grid-template-columns:1fr 1fr}.info-trio{grid-template-columns:1fr}.prose-grid{grid-template-columns:1fr}.side-note{position:static}.footer-directory{grid-template-columns:1fr 1fr}}
@media(max-width:700px){body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}.masthead{height:64px}.masthead-inner{width:calc(100% - 32px);grid-template-columns:52px 1fr 78px}.masthead-actions{gap:0}.search-trigger{display:none}.app-btn{padding:0 12px;min-height:44px;font-size:14px}.brand-logo{max-height:34px}.brand-text{font-size:20px}.chapter-bar{display:none}.site-main{padding-top:64px}.section-space{padding-top:52px;padding-bottom:52px}.hero{min-height:0;padding-top:36px;padding-bottom:30px;gap:26px}.hero-copy{padding-left:25px}.lead{font-size:16px}.hero-actions{display:grid;grid-template-columns:1fr 1fr}.btn{padding:0 14px}.tag-grid{grid-template-columns:1fr}.feature-band{padding:20px}.masonry-three{grid-template-columns:1fr}.story-card.tall{grid-row:auto}.story-card.medium{margin:0}.steps{grid-template-columns:1fr}.theme-tiles{grid-template-columns:1fr}.theme-tiles a:nth-child(2),.theme-tiles a:nth-child(5){transform:none}.shelf-list a{grid-template-columns:52px 1fr;gap:6px;padding:12px 0}.shelf-list em{grid-column:2}.section-heading h2,.feature-copy h2,.split-feature h2,.chart-section h2,.app-feature h2,.info-trio h2,.side-note h2{font-size:24px}.inner-hero{padding-top:36px;gap:22px}.prose-main{padding:24px 20px}.footer-inner{padding-bottom:40px}.footer-directory{grid-template-columns:1fr 1fr;gap:18px}.book-menu{width:calc(100% - 24px);max-height:86vh}.book-spread{grid-template-columns:1fr;background:#fff}.book-page{padding:10px 22px}.search-layer{width:calc(100% - 24px)}.search-card{padding:28px 20px}.mobile-bottom{position:fixed;display:grid;z-index:800;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);grid-template-columns:repeat(5,1fr);background:rgba(255,255,255,.97);border-top:1px solid var(--border)}.mobile-bottom a{min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;color:var(--muted);line-height:1.15}.mobile-bottom a span{font-size:16px;margin-bottom:2px}.mobile-bottom a.is-current{color:var(--magenta);font-weight:800}.overlay{z-index:990}.book-menu,.search-layer{z-index:1000}.cover-image,.media-placeholder.cover-image{max-height:320px}.section-shell{width:calc(100% - 32px)}}
@media(max-width:420px){.hero-actions{grid-template-columns:1fr}.footer-directory{grid-template-columns:1fr}.masthead-inner{grid-template-columns:48px 1fr 72px}.app-btn{padding:0 9px}.brand-text{font-size:18px}.search-card h2{font-size:24px}}