:root{
  --paper:#FFF8F2;--white:#FFFFFF;--soft:#F3EBE3;--ink:#1A1230;--body:#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:18px;--max:1160px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--body);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC","Noto Sans CJK SC",sans-serif;font-size:16px;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}button,input{font:inherit}button{color:inherit}.masthead{position:fixed;z-index:70;top:0;left:0;right:0;height:72px;background:rgba(255,248,242,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.masthead-inner{max-width:var(--max);height:100%;margin:0 auto;padding:0 22px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px}.square-button{width:44px;height:44px;border:1px solid var(--line);background:var(--white);border-radius:12px;display:inline-grid;place-items:center;padding:10px;cursor:pointer;justify-self:start}.square-button span{display:block;width:18px;height:2px;background:var(--ink);margin:2px 0;border-radius:2px}.brand-link{display:flex;align-items:center;justify-content:center;min-width:150px;min-height:44px}.brand-logo{height:38px;width:auto;object-fit:contain}.brand-text{font-size:22px;font-weight:800;letter-spacing:.12em;color:var(--ink)}.masthead-actions{display:flex;justify-content:flex-end;align-items:center;gap:8px}.text-action{min-height:44px;padding:0 14px;border:0;background:transparent;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--ink);cursor:pointer}.app-link{background:var(--ink);color:#fff}.text-action:hover,.square-button:hover{background:var(--soft)}.app-link:hover{background:#30264b}.chapter-band{position:fixed;z-index:65;top:72px;left:0;right:0;height:46px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}.chapter-inner{max-width:var(--max);height:100%;margin:0 auto;display:flex;justify-content:center;align-items:center;gap:34px;padding:0 22px}.chapter-inner a{position:relative;height:46px;display:inline-flex;align-items:center;font-size:14px;font-weight:700;color:var(--muted)}.chapter-inner a.active,.chapter-inner a:hover{color:var(--ink)}.chapter-inner a.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--pink);border-radius:3px 3px 0 0}.site-main{padding-top:118px;min-height:70vh}.wrap{width:min(var(--max),calc(100% - 44px));margin:0 auto}.page-hero{padding:64px 0 30px}.eyebrow{font-size:13px;text-transform:uppercase;letter-spacing:.16em;color:var(--pink);font-weight:800}.page-hero h1,.cover-copy h1{font-size:clamp(28px,4vw,34px);line-height:1.28;color:var(--ink);margin:12px 0 16px}.page-lead{max-width:820px;font-size:17px;color:var(--muted);margin:0}.section{padding:34px 0 54px}.section + .section{border-top:1px solid rgba(26,18,48,.06)}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-end;margin-bottom:22px}.section-head h2{margin:0;color:var(--ink);font-size:24px;line-height:1.35}.section-head p{margin:0;max-width:620px;color:var(--muted)}.section h2{color:var(--ink)}.section h3{color:var(--ink)}.section p{margin:0 0 16px}.media-slot{min-height:180px;background:linear-gradient(135deg,#fff 0%,var(--soft) 100%);border:1px solid var(--line);border-radius:22px;display:flex;align-items:center;justify-content:center;overflow:hidden}.media-slot img{width:100%;height:100%;max-height:360px;object-fit:contain;object-position:center}.media-slot.hero-media{min-height:260px}.media-slot.app-media{min-height:260px;max-height:360px}.cover{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.9fr);gap:48px;align-items:center;padding:62px 0 46px}.cover-copy{position:relative;padding-left:38px}.vertical-kicker{position:absolute;left:0;top:6px;writing-mode:vertical-rl;text-orientation:mixed;letter-spacing:.18em;color:var(--pink);font-size:13px;font-weight:800}.cover-copy p{max-width:650px;color:var(--muted);font-size:17px}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.button{min-height:44px;padding:0 22px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:14px;border:1px solid transparent}.button.primary{background:linear-gradient(135deg,var(--indigo) 0%,var(--pink) 55%,var(--amber) 100%);color:#fff}.button.secondary{background:#fff;color:var(--ink);border-color:var(--line)}.button:hover{transform:translateY(-1px);box-shadow:var(--shadow)}.button:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid rgba(225,29,143,.28);outline-offset:3px}.tag-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tag-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;min-height:150px;box-shadow:0 8px 22px rgba(26,18,48,.035)}.tag-card h3{margin:0 0 8px;font-size:17px}.tag-card p{font-size:14px;color:var(--muted);margin-bottom:14px}.tag-card a{font-size:14px;font-weight:800;display:inline-flex;align-items:center;min-height:44px}.dot{width:10px;height:10px;border-radius:50%;display:inline-block;margin-right:8px}.pink{background:var(--pink)}.indigo{background:var(--indigo)}.cyan{background:var(--cyan)}.amber{background:var(--amber)}.mint{background:var(--mint)}.feature-row{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:stretch}.chapter-list{display:grid;gap:12px}.chapter-item{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 20px;display:grid;grid-template-columns:54px 1fr;gap:12px;align-items:start}.chapter-no{font-size:24px;font-weight:900;color:var(--pink);line-height:1}.chapter-item h3{margin:0 0 5px;font-size:16px}.chapter-item p{margin:0;font-size:14px;color:var(--muted)}.uneven-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:16px;align-items:start}.content-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:var(--shadow)}.content-card:nth-child(2){margin-top:36px}.content-card:nth-child(3){margin-top:12px}.content-card h3{margin:14px 0 8px}.content-card p{color:var(--muted);font-size:15px}.compact-media{min-height:150px}.compact-media img{max-height:220px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.step{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.step span{display:inline-flex;width:34px;height:34px;border-radius:50%;align-items:center;justify-content:center;color:#fff;font-weight:900;background:var(--indigo)}.step:nth-child(2) span{background:var(--pink)}.step:nth-child(3) span{background:var(--cyan)}.step:nth-child(4) span{background:var(--amber)}.step h3{margin:12px 0 6px}.step p{font-size:14px;color:var(--muted)}.theme-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;grid-auto-rows:minmax(150px,auto);gap:14px}.theme-tile{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px}.theme-tile:nth-child(1){grid-row:span 2}.theme-tile:nth-child(4){grid-column:span 2}.theme-tile h3{margin-top:0}.theme-tile p{font-size:14px;color:var(--muted)}.shelf-list{background:#fff;border:1px solid var(--line);border-radius:20px;padding:8px 22px}.shelf-item{display:grid;grid-template-columns:68px 1fr auto;gap:18px;align-items:center;padding:19px 0;border-bottom:1px dashed var(--line)}.shelf-item:last-child{border-bottom:0}.shelf-mark{font-weight:900;color:var(--pink);font-size:13px}.shelf-item h3{margin:0 0 4px}.shelf-item p{margin:0;color:var(--muted);font-size:14px}.text-link{font-weight:800;color:var(--indigo);display:inline-flex;align-items:center;min-height:44px}.rank-list{display:grid;gap:12px}.rank-item{display:grid;grid-template-columns:92px 1fr;gap:20px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px}.rank-no{font-size:42px;font-weight:900;line-height:1;color:var(--pink)}.rank-item:nth-child(2) .rank-no{color:var(--indigo)}.rank-item:nth-child(3) .rank-no{color:var(--cyan)}.rank-item:nth-child(4) .rank-no{color:var(--amber)}.rank-item:nth-child(5) .rank-no{color:var(--mint)}.rank-item h3{margin:0 0 4px}.rank-item p{margin:0;color:var(--muted)}.timeline{position:relative;margin-left:14px;padding-left:38px}.timeline::before{content:"";position:absolute;left:8px;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:18px 20px;margin-bottom:14px}.timeline-item::before{content:"";position:absolute;left:-38px;top:24px;width:18px;height:18px;border-radius:50%;background:var(--pink);border:4px solid var(--paper)}.timeline-item:nth-child(2)::before{background:var(--indigo)}.timeline-item:nth-child(3)::before{background:var(--cyan)}.timeline-item:nth-child(4)::before{background:var(--amber)}.status{display:inline-flex;padding:3px 10px;border-radius:999px;background:var(--soft);font-size:12px;font-weight:800;color:var(--ink)}.product{display:grid;grid-template-columns:minmax(280px,.85fr) minmax(0,1.15fr);gap:34px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:24px;padding:28px}.product-copy h2{margin-top:0}.app-icon{width:58px;height:58px;border-radius:14px;background:var(--soft);display:flex;align-items:center;justify-content:center;margin-bottom:14px;overflow:hidden}.app-icon img{width:48px;height:48px;object-fit:contain}.split-info{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.info-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px}.info-card h2,.info-card h3{margin-top:0}.faq-mini{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.faq-mini article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.faq-mini h3{margin-top:0}.page-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.article-block{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}.article-block h2,.article-block h3{margin-top:0}.article-block p:last-child{margin-bottom:0}.role-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.role-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px}.role-chip{display:inline-flex;padding:4px 10px;border-radius:999px;background:var(--soft);font-size:12px;font-weight:800;color:var(--indigo)}.index-list{display:grid;gap:12px}.index-entry{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;display:grid;grid-template-columns:130px 1fr auto;gap:18px;align-items:start}.index-entry .category{font-size:13px;font-weight:900;color:var(--pink)}.directory{columns:2;column-gap:18px}.directory article{break-inside:avoid;background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;margin:0 0 18px}.directory h2{margin-top:0}.directory p{color:var(--muted)}.cover-strip{background:linear-gradient(135deg,rgba(99,102,241,.10),rgba(225,29,143,.10),rgba(217,119,6,.10));border:1px solid var(--line);border-radius:24px;padding:30px}.cover-strip h2{margin-top:0}.memo{background:#fff;border-left:4px solid var(--pink);border-radius:0 18px 18px 0;padding:22px 24px;margin:18px 0}.memo strong{color:var(--ink)}.longread{max-width:860px;margin:0 auto}.longread h2{margin-top:34px}.longread .opinion{display:inline-flex;border-radius:999px;background:var(--ink);color:#fff;padding:5px 11px;font-size:12px;font-weight:800}.policy-stack{display:grid;gap:16px}.policy-section{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}.policy-section h2{margin-top:0}.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.contact-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}.notice{background:#fff4df;border:1px solid rgba(217,119,6,.20);border-radius:18px;padding:18px 20px}.book-menu,.search-layer{position:fixed;z-index:95;inset:0;display:flex;align-items:center;justify-content:center;padding:24px;visibility:hidden;opacity:0;pointer-events:none;transition:opacity .2s ease,visibility .2s ease}.book-menu.is-open,.search-layer.is-open{visibility:visible;opacity:1;pointer-events:auto}.overlay{position:fixed;z-index:90;inset:0;background:rgba(26,18,48,.48);backdrop-filter:blur(4px);visibility:hidden;opacity:0;pointer-events:none;transition:opacity .2s ease,visibility .2s ease}.overlay.is-open{visibility:visible;opacity:1;pointer-events:auto}.book-shell{width:min(840px,calc(100vw - 40px));max-height:calc(100vh - 48px);overflow:auto;background:var(--paper);border-radius:24px;box-shadow:0 30px 80px rgba(26,18,48,.25);border:1px solid rgba(255,255,255,.45)}.book-top{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line);background:#fff}.book-brand{display:flex;align-items:center;gap:12px}.book-brand img{height:28px;width:auto}.book-brand strong{display:block;color:var(--ink)}.book-brand span{display:block;font-size:11px;color:var(--muted);letter-spacing:.12em}.close-button{min-width:60px;min-height:44px;border:1px solid var(--line);background:#fff;border-radius:999px;font-weight:800;cursor:pointer}.book-pages{display:grid;grid-template-columns:1fr 1fr}.book-page{padding:22px 26px}.book-page + .book-page{border-left:1px solid var(--line);box-shadow:inset 12px 0 20px rgba(26,18,48,.03)}.menu-group + .menu-group{margin-top:22px}.menu-group h2{font-size:13px;letter-spacing:.12em;color:var(--pink);margin:0 0 10px}.menu-group a{display:block;padding:11px 10px;border-radius:12px}.menu-group a:hover{background:#fff}.menu-group strong{display:block;color:var(--ink);font-size:15px}.menu-group span{display:block;color:var(--muted);font-size:12px;line-height:1.55}.search-card{width:min(640px,calc(100vw - 36px));background:#fff;border-radius:24px;padding:24px;box-shadow:0 30px 80px rgba(26,18,48,.25)}.search-head{display:flex;justify-content:space-between;gap:18px;align-items:center}.search-head h2{margin:0;color:var(--ink);font-size:22px}.search-look{display:block;margin:20px 0}.search-look span{display:block;font-size:12px;font-weight:800;color:var(--muted);margin-bottom:7px}.search-look input{width:100%;height:48px;border:1px solid var(--line);border-radius:999px;padding:0 18px;background:var(--paper);color:var(--muted)}.search-card p{color:var(--muted)}.preset-links{display:flex;flex-wrap:wrap;gap:10px}.preset-links a{min-height:44px;padding:0 15px;border-radius:999px;display:inline-flex;align-items:center;border:1px solid var(--line);font-size:14px;font-weight:800}.site-footer{background:var(--ink);color:#F7EFE6;padding:48px 0 30px;margin-top:54px}.footer-inner{width:min(var(--max),calc(100% - 44px));margin:0 auto}.footer-brand{display:flex;align-items:center;gap:14px;padding-bottom:22px;border-bottom:1px solid rgba(247,239,230,.14)}.footer-logo{height:28px;width:auto;object-fit:contain}.footer-brand strong{display:block;font-size:18px}.footer-brand span{display:block;color:rgba(247,239,230,.65);font-size:11px;letter-spacing:.12em}.footer-columns{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:26px 0}.footer-columns h2{font-size:13px;color:#fff;margin:0 0 9px}.footer-columns a{min-height:44px;display:flex;align-items:center;color:rgba(247,239,230,.72);font-size:13px;padding:4px 0}.footer-columns a:hover{color:#fff}.footer-note{font-size:13px;color:rgba(247,239,230,.72);padding-top:18px;border-top:1px solid rgba(247,239,230,.14)}.footer-copy{font-size:12px;color:rgba(247,239,230,.50);margin-bottom:0}.mobile-bottom{display:none}
@media (max-width:900px){.tag-grid{grid-template-columns:repeat(2,1fr)}.cover{grid-template-columns:1fr;gap:26px}.feature-row,.product{grid-template-columns:1fr}.uneven-grid{grid-template-columns:1fr 1fr}.uneven-grid .content-card:nth-child(3){grid-column:1/-1}.steps{grid-template-columns:repeat(2,1fr)}.theme-grid{grid-template-columns:1fr 1fr}.theme-tile:nth-child(1){grid-row:auto}.theme-tile:nth-child(4){grid-column:auto}.role-grid{grid-template-columns:repeat(2,1fr)}.footer-columns{grid-template-columns:repeat(2,1fr)}.page-grid,.contact-grid{grid-template-columns:1fr}.index-entry{grid-template-columns:100px 1fr}.index-entry>a{grid-column:2}.split-info{grid-template-columns:1fr}}
@media (max-width:720px){body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}.masthead{height:72px}.masthead-inner{padding:0 16px;grid-template-columns:44px 1fr auto;gap:8px}.brand-link{min-width:0}.brand-logo{height:32px}.brand-text{font-size:18px;letter-spacing:.08em}.search-trigger{display:none}.text-action{padding:0 11px;font-size:13px}.chapter-band{display:none}.site-main{padding-top:72px}.wrap,.footer-inner{width:calc(100% - 32px)}.cover{padding-top:38px}.cover-copy{padding-left:28px}.vertical-kicker{font-size:12px}.media-slot.hero-media{min-height:210px}.section{padding:28px 0 42px}.section-head{display:block}.section-head p{margin-top:8px}.tag-grid{grid-template-columns:1fr}.uneven-grid{grid-template-columns:1fr}.content-card:nth-child(2),.content-card:nth-child(3){margin-top:0}.uneven-grid .content-card:nth-child(3){grid-column:auto}.steps{grid-template-columns:1fr}.theme-grid{grid-template-columns:1fr}.shelf-item{grid-template-columns:56px 1fr}.shelf-item>a{grid-column:2}.rank-item{grid-template-columns:64px 1fr}.rank-no{font-size:34px}.faq-mini{grid-template-columns:1fr}.role-grid{grid-template-columns:1fr}.directory{columns:1}.book-menu{padding:12px}.book-shell{width:calc(100vw - 24px);max-height:calc(100vh - 24px)}.book-pages{grid-template-columns:1fr}.book-page + .book-page{border-left:0;border-top:1px solid var(--line);box-shadow:none}.book-page{padding:18px}.search-layer{align-items:flex-start;padding-top:84px}.search-card{width:calc(100vw - 24px)}.mobile-bottom{display:grid;position:fixed;z-index:60;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));grid-template-columns:repeat(5,1fr);background:rgba(255,255,255,.98);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;color:var(--muted)}.mobile-bottom a.active{color:var(--pink)}.site-footer{padding-bottom:80px}.footer-columns{grid-template-columns:1fr 1fr}.page-hero{padding-top:42px}.index-entry{grid-template-columns:1fr}.index-entry>a{grid-column:auto}.book-top{position:sticky;top:0;z-index:2}.product{padding:20px}}
@media (max-width:460px){.footer-columns{grid-template-columns:1fr}.button-row{display:grid}.button{width:100%}.rank-item{grid-template-columns:52px 1fr}.chapter-item{grid-template-columns:46px 1fr}.section-head h2{font-size:21px}.site-main{overflow:hidden}}

.space-top{margin-top:16px}.space-top-lg{margin-top:24px}.prose-note{color:var(--muted);font-size:15px}.hero-banner-slot{min-height:200px;max-height:260px}.hero-banner-slot img{max-height:260px}.center-card{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px}.center-card h2{margin-top:0}.micro-list{display:grid;gap:10px;padding:0;margin:0;list-style:none}.micro-list li{background:var(--soft);border-radius:14px;padding:12px 14px}.two-column-prose{display:grid;grid-template-columns:1fr 1fr;gap:18px}.two-column-prose>article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}.quote-block{background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;position:relative}.quote-block:before{content:"“";font-size:54px;line-height:1;color:var(--pink);position:absolute;right:18px;top:12px;opacity:.18}.quote-block h2{margin-top:0}.list-check{padding-left:1.2em}.list-check li{margin:8px 0}.tiny-label{font-size:12px;font-weight:800;color:var(--pink);letter-spacing:.08em}.page-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}@media(max-width:720px){.two-column-prose{grid-template-columns:1fr}.center-card{padding:22px}}