: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);--max:1160px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--body);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto;object-fit:contain}.masthead{position:fixed;inset:0 0 auto;z-index:50;height:72px;background:rgba(255,248,242,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.masthead-inner{max-width:var(--max);height:72px;margin:auto;padding:0 18px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center}.square-action{width:44px;height:44px;border:1px solid var(--line);background:var(--white);border-radius:12px;display:grid;place-content:center;gap:4px;cursor:pointer}.square-action span{width:18px;height:2px;background:var(--ink);display:block}.brand{justify-self:center;min-height:44px;display:flex;align-items:center;justify-content:center}.brand-logo,.menu-logo,.footer-logo{max-height:38px;max-width:180px}.brand strong{font-size:22px;color:var(--ink);letter-spacing:.08em}.header-actions{justify-self:end;display:flex;gap:8px;align-items:center}.text-action,.app-action,.close-btn{min-height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:var(--white);color:var(--ink);font:inherit;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.app-action{background:linear-gradient(135deg,#6366F1 0%,#E11D8F 55%,#D97706 100%);color:#fff;border:0}.chapter-band{position:fixed;top:72px;left:0;right:0;z-index:45;height:46px;background:#fff;border-bottom:1px solid var(--line);display:flex;justify-content:center;gap:34px;align-items:center}.chapter-band a{height:46px;display:flex;align-items:center;position:relative;color:var(--muted)}.chapter-band a.active{color:var(--ink);font-weight:700}.chapter-band a.active:after{content:"";position:absolute;left:14%;right:14%;bottom:0;height:3px;background:var(--pink);border-radius:3px}main{padding-top:118px}.container{width:min(var(--max),calc(100% - 36px));margin:0 auto}.section{padding:68px 0}.section.compact{padding:44px 0}.eyebrow{color:var(--pink);font-size:14px;font-weight:800;letter-spacing:.08em}.section h1,.section h2,.section h3{color:var(--ink);line-height:1.22;margin:0 0 16px}.section h1{font-size:clamp(28px,4vw,34px)}.section h2{font-size:clamp(23px,3vw,30px)}.section h3{font-size:19px}.lead{font-size:17px;color:var(--muted);max-width:760px}.hero{padding:54px 0 44px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(300px,.96fr);gap:40px;align-items:center}.hero-grid.no-image{grid-template-columns:1fr}.hero-copy{min-width:0}.vertical-kicker{writing-mode:vertical-rl;letter-spacing:.22em;color:var(--pink);font-weight:800;float:left;margin:4px 20px 0 0}.hero-copy h1{font-size:clamp(31px,5vw,48px)}.hero-media{display:flex;justify-content:center}.hero-media img{max-height:360px;border-radius:22px;box-shadow:var(--shadow)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.button{min-height:44px;padding:10px 20px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);display:inline-flex;align-items:center;font-weight:700}.button.primary{background:linear-gradient(135deg,#6366F1 0%,#E11D8F 55%,#D97706 100%);color:#fff;border:0}.tag-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tag-card,.card,.list-card,.note-card,.policy-card,.faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}.tag-card{padding:18px}.tag-card .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)}.feature-split{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:28px;align-items:center}.feature-split.no-image{grid-template-columns:1fr}.feature-split img{max-height:320px;border-radius:20px;margin:auto}.chapter-list{display:grid;gap:12px}.chapter-item{display:grid;grid-template-columns:52px 1fr;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}.chapter-item .num{font-size:26px;font-weight:900;color:var(--indigo)}.cards-3{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:18px;align-items:start}.cards-3 .card{padding:22px}.cards-3 .card:nth-child(2){margin-top:28px}.card img{max-height:220px;margin:0 auto 16px;border-radius:16px}.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.step{padding:20px;border-radius:18px;background:#fff;border:1px solid var(--line)}.step b{display:block;color:var(--pink);font-size:13px}.masonry{columns:3 240px;column-gap:16px}.masonry .card{break-inside:avoid;padding:20px;margin:0 0 16px}.shelf-list{display:grid;gap:12px}.shelf-row{display:grid;grid-template-columns:120px 1fr auto;gap:20px;align-items:center;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:16px}.shelf-row .mark{font-weight:900;color:var(--indigo)}.big-number-list{display:grid;gap:14px}.big-number-item{display:grid;grid-template-columns:94px 1fr;gap:18px;align-items:start;padding:18px 0;border-bottom:1px solid var(--line)}.big-number{font-size:58px;line-height:1;color:var(--pink);font-weight:900}.big-number-item:nth-child(2n) .big-number{color:var(--indigo)}.big-number-item:nth-child(3n) .big-number{color:var(--cyan)}.timeline{position:relative;margin-left:14px;padding-left:34px}.timeline:before{content:"";position:absolute;left:7px;top:10px;bottom:10px;width:2px;background:linear-gradient(var(--pink),var(--indigo),var(--cyan),var(--amber))}.timeline-item{position:relative;margin-bottom:24px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.timeline-item:before{content:"";position:absolute;width:14px;height:14px;border-radius:50%;left:-34px;top:26px;background:var(--pink);box-shadow:0 0 0 6px var(--paper)}.status{display:inline-flex;padding:4px 10px;border-radius:999px;background:var(--soft);color:var(--ink);font-size:13px;font-weight:700}.page-hero{padding:58px 0 30px}.page-hero .inner{background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:var(--shadow)}.page-hero p{max-width:820px;margin-bottom:0}.content-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.content-grid .card{padding:24px}.prose{max-width:860px}.prose p{margin:0 0 18px}.prose h2{margin-top:38px}.note{padding:18px 20px;border-left:4px solid var(--pink);background:#fff;border-radius:0 16px 16px 0}.index-links{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.index-links a{padding:18px;background:#fff;border:1px solid var(--line);border-radius:16px}.app-panel{display:grid;grid-template-columns:160px 1fr;gap:26px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:22px;padding:26px}.app-visual{display:grid;place-items:center}.app-visual img{max-height:300px}.app-icon{max-width:86px!important;max-height:86px!important;margin-bottom:12px}.policy-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.policy-card{padding:22px}.faq-list{display:grid;gap:14px}.faq-item{padding:22px}.faq-item h2,.faq-item h3{font-size:19px}.site-footer{background:var(--ink);color:#F7EFE6;padding:54px 0 80px;margin-top:50px}.footer-inner{width:min(var(--max),calc(100% - 36px));margin:auto}.footer-brand{max-width:680px}.footer-brand strong{font-size:24px}.en-brand{letter-spacing:.12em;color:#d8cfe6}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:36px}.footer-groups h2{font-size:16px;color:#fff}.footer-groups a{display:block;color:#e9deef;padding:4px 0}.copyright{border-top:1px solid rgba(255,255,255,.14);padding-top:20px;margin-top:34px;color:#d8cfe6}.overlay{position:fixed;inset:0;background:rgba(26,18,48,.46);z-index:80;opacity:0;visibility:hidden;pointer-events:none;transition:.18s}.overlay.show{opacity:1;visibility:visible;pointer-events:auto}.book-menu,.search-modal{position:fixed;z-index:90;left:50%;top:50%;transform:translate(-50%,-48%);opacity:0;visibility:hidden;pointer-events:none;transition:.18s;background:#FFF8F2;border:1px solid var(--line);box-shadow:0 30px 80px rgba(26,18,48,.24)}.book-menu.show,.search-modal.show{transform:translate(-50%,-50%);opacity:1;visibility:visible;pointer-events:auto}.book-menu{width:min(840px,calc(100% - 32px));max-height:min(82vh,760px);border-radius:22px;overflow:auto}.menu-head,.search-head{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(255,248,242,.98);z-index:2}.menu-brand{display:flex;align-items:center;gap:12px}.menu-pages{display:grid;grid-template-columns:1fr 1fr}.menu-page{padding:22px 24px}.menu-page:first-child{border-right:1px solid var(--line)}.menu-page h2{font-size:15px;color:var(--pink);margin:6px 0 10px}.menu-page a{display:block;padding:10px 0;border-bottom:1px solid var(--line)}.menu-page a strong{display:block;color:var(--ink)}.menu-page a span{display:block;font-size:13px;color:var(--muted);line-height:1.6}.search-modal{width:min(620px,calc(100% - 32px));border-radius:22px;padding-bottom:20px}.search-head h2{margin:0;font-size:22px;color:var(--ink)}.search-box{display:block;margin:20px}.search-box span{display:block;color:var(--muted);margin-bottom:8px}.search-box input{width:100%;min-height:48px;border:1px solid var(--line);border-radius:14px;padding:0 14px;font:inherit;color:var(--ink);background:#fff}.quick-links{display:flex;flex-wrap:wrap;gap:10px;padding:0 20px}.quick-links a{padding:9px 14px;border-radius:999px;border:1px solid var(--line);background:#fff}.modal-open{overflow:hidden}.mobile-bottom{display:none}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(99,102,241,.32);outline-offset:2px}a:hover{color:var(--pink)}
@media(max-width:820px){.chapter-band{display:none}main{padding-top:72px}.masthead-inner{grid-template-columns:52px 1fr auto;padding:0 12px}.search-top{display:none}.brand-logo{max-width:140px}.hero-grid,.feature-split,.cards-3,.app-panel{grid-template-columns:1fr}.cards-3 .card:nth-child(2){margin-top:0}.hero{padding-top:34px}.hero-media{order:2}.tag-grid{grid-template-columns:repeat(2,1fr)}.step-grid{grid-template-columns:repeat(2,1fr)}.content-grid,.policy-grid{grid-template-columns:1fr}.footer-groups{grid-template-columns:repeat(2,1fr)}.menu-pages{grid-template-columns:1fr}.menu-page:first-child{border-right:0;border-bottom:1px solid var(--line)}.book-menu{max-height:86vh}.shelf-row{grid-template-columns:1fr;gap:6px}.big-number-item{grid-template-columns:70px 1fr}.big-number{font-size:46px}.index-links{grid-template-columns:1fr 1fr}.mobile-bottom{position:fixed;z-index:40;left:0;right:0;bottom:0;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.97);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr);align-items:center}.mobile-bottom a{text-align:center;font-size:13px}.mobile-bottom a.active{color:var(--pink);font-weight:800}.site-footer{padding-bottom:calc(80px + env(safe-area-inset-bottom))}.section{padding:48px 0}}
@media(max-width:520px){.container,.footer-inner{width:min(100% - 32px,var(--max))}.header-actions .app-action{padding:0 12px}.vertical-kicker{writing-mode:horizontal-tb;float:none;margin:0 0 10px}.hero-copy h1{font-size:32px}.tag-grid,.step-grid,.index-links{grid-template-columns:1fr}.footer-groups{grid-template-columns:1fr 1fr}.section{padding:40px 0}.page-hero .inner{padding:22px}.content-grid .card,.policy-card,.faq-item{padding:20px}.app-panel{padding:20px}.masonry{columns:1}.menu-page{padding:18px}.book-menu{width:calc(100% - 24px)}.search-modal{width:calc(100% - 24px)}}