:root{
    --brand:#7C5C8E;
    --brand-soft:#B89ABF;
    --ink:#302C33;
    --muted:#726B76;
    --dark:#25212A;
    --paper:#F8F5F3;
    --soft:#EEE8EF;
    --white:#fffdfa;
    --amber:#D58A45;
    --line:rgba(48,44,51,.14);
    --radius:24px;
    --shadow:0 20px 60px rgba(37,33,42,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.72}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{cursor:pointer}
.wrap{width:min(1180px,calc(100% - 48px));margin-inline:auto}
.narrow{width:min(820px,calc(100% - 48px))}
.skip-link{position:fixed;left:14px;top:-100px;background:var(--dark);color:#fff;padding:10px 14px;z-index:1000}
.skip-link:focus{top:14px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(248,245,243,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{min-height:76px;display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;white-space:nowrap}
.brand img{width:42px;height:42px;object-fit:contain}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{font-size:15px;color:var(--muted)}
.main-nav a:hover,.text-link:hover,.section-link:hover{color:var(--brand)}
.search-open,.menu-toggle{border:1px solid var(--line);background:transparent;border-radius:999px;padding:9px 14px;color:var(--ink)}
.menu-toggle{display:none}
.breadcrumb{display:flex;gap:9px;align-items:center;font-size:13px;color:var(--muted);padding-top:18px}
.breadcrumb a:hover{color:var(--brand)}
.eyebrow{letter-spacing:.08em;font-weight:800;color:var(--brand);font-size:13px;margin:0 0 12px}
.home-lead{padding:68px 0 44px}
.lead-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.lead-copy h1,.inner-hero h1,.inner-title h1,.article-head h1,.not-found h1{font-size:clamp(38px,5vw,68px);line-height:1.12;letter-spacing:-.04em;margin:0 0 24px;color:var(--dark)}
.lead-text,.inner-hero p,.inner-title>p,.article-summary{font-size:18px;color:var(--muted);max-width:780px}
.lead-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.button{display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:#fff;border-radius:999px;padding:12px 20px;font-weight:700}
.button:hover{transform:translateY(-1px)}
.button-quiet{background:transparent;color:var(--brand);border:1px solid rgba(124,92,142,.35)}
.button.amber{background:var(--amber);color:#211b18}
.lead-visual{margin:0}
.lead-visual img{width:100%;aspect-ratio:1.45;object-fit:cover;border-radius:36px 36px 12px 36px;box-shadow:var(--shadow)}
.lead-visual figcaption{font-size:13px;color:var(--muted);padding:12px 4px}
.section{padding-top:72px;padding-bottom:72px}
.section-heading{max-width:760px;margin-bottom:34px}
.section-heading.compact{max-width:900px}
.section h2,.footer-grid h2{font-size:clamp(28px,3.5vw,44px);line-height:1.2;letter-spacing:-.025em;margin:0 0 16px;color:var(--dark)}
.section h3{font-size:22px;line-height:1.3;margin:8px 0 10px}
.section-heading p,.split-title>p,.section p{color:var(--muted)}
.focus-strip{border-top:1px solid var(--line)}
.focus-columns{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.focus-item{padding:28px 28px 30px 0;display:grid;grid-template-columns:42px 1fr;gap:4px 12px}
.focus-item+.focus-item{border-left:1px solid var(--line);padding-left:28px}
.focus-item span{grid-row:1/3;color:var(--brand);font-weight:800}
.focus-item strong{font-size:22px}
.focus-item small{color:var(--muted);font-size:14px}
.editorial-band{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.split-title{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:end;margin-bottom:38px}
.editorial-list{border-top:1px solid var(--line)}
.editorial-row{padding:26px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:170px 1fr minmax(210px,320px);gap:18px 28px;align-items:start}
.editorial-meta{display:flex;gap:8px;flex-wrap:wrap}
.editorial-meta span{font-size:12px;color:var(--brand);background:var(--soft);padding:4px 8px;border-radius:999px}
.editorial-row h2,.editorial-row h3{grid-column:2;margin:0}
.editorial-row p{grid-column:2/4;margin:0;color:var(--muted)}
.editorial-row>.text-link{grid-column:3;grid-row:1/3;justify-self:end;font-weight:700;color:var(--brand);font-size:14px}
.text-link,.section-link{font-weight:750;color:var(--brand);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.section-link{display:inline-block;margin-top:28px}
.image-text{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.image-text.reverse figure{order:2}
.image-text figure{margin:0}
.image-text img{border-radius:var(--radius);width:100%;aspect-ratio:1.35;object-fit:cover}
.mini-index{display:grid;gap:0;border-top:1px solid var(--line);margin:22px 0}
.mini-index a{padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
.soft-section{background:var(--soft)}
.two-list{display:grid;grid-template-columns:1fr 1fr;gap:18px 32px}
.two-list a{padding:20px 0;border-top:1px solid rgba(48,44,51,.16)}
.two-list strong,.two-list span{display:block}
.two-list span{font-size:14px;color:var(--muted);margin-top:5px}
.brand-notes{display:grid;grid-template-columns:1.2fr .8fr;gap:56px;align-items:center}
.brand-notes figure{margin:0}
.brand-notes img{border-radius:52% 48% 14px 14px;aspect-ratio:1.35;object-fit:cover}
.light-topic-grid{display:grid;grid-template-columns:1.15fr .85fr .9fr;gap:16px}
.light-topic-grid a{border-top:3px solid var(--brand-soft);padding:22px 8px 0 0}
.light-topic-grid strong,.light-topic-grid span{display:block}
.light-topic-grid span{color:var(--muted);font-size:14px;margin-top:8px}
.dark-section{background:var(--dark);color:#f6eff8}
.dark-grid{display:grid;grid-template-columns:1fr .9fr;gap:56px;align-items:center}
.dark-section h2{color:#fff}
.dark-section p{color:#d8d0da}
.dark-section .eyebrow{color:#d8b4df}
.dark-grid figure{margin:0}
.dark-grid img{border-radius:var(--radius);aspect-ratio:1.45;object-fit:cover}
.faq-mini,.faq-list{display:grid;gap:12px}
.faq-mini details,.faq-list details{background:rgba(255,255,255,.58);border:1px solid var(--line);border-radius:18px}
.faq-mini summary,.faq-list summary{padding:18px 22px;font-weight:750;cursor:pointer}
.faq-mini p,.faq-list details div{padding:0 22px 18px;margin:0}
.closing-line{padding:32px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.closing-line .wrap{display:flex;justify-content:space-between;gap:22px;align-items:center}
.closing-line p{max-width:800px;margin:0}
.closing-line a{color:var(--brand);font-weight:800;white-space:nowrap}
.inner-hero{padding-top:64px;padding-bottom:34px;display:grid;grid-template-columns:1fr .78fr;gap:54px;align-items:center}
.inner-hero img{border-radius:var(--radius);width:100%;aspect-ratio:1.45;object-fit:cover}
.inner-title{padding-top:70px;padding-bottom:24px}
.watch-paths{display:grid;gap:0}
.path-block{display:grid;grid-template-columns:120px 1.15fr .85fr;gap:24px;padding:30px 0;border-top:1px solid var(--line);align-items:start}
.path-block:last-child{border-bottom:1px solid var(--line)}
.path-block>span{color:var(--brand);font-weight:800}
.path-block h2{font-size:32px}
.path-block a{color:var(--brand);font-weight:800}
.check-band{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px}
.check-band ol{margin:0;padding-left:22px}
.check-band li{padding:10px 0;border-bottom:1px solid var(--line)}
.related-row{display:flex;justify-content:space-between;gap:30px;align-items:center;border-top:1px solid var(--line)}
.related-row>div{max-width:780px}
.topic-index{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.topic-index>a{display:grid;grid-template-columns:180px 1fr;background:var(--white);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.topic-index img{width:100%;height:100%;min-height:150px;object-fit:cover}
.topic-index span{padding:20px}
.topic-index strong,.topic-index small,.topic-index em{display:block}
.topic-index strong{font-size:21px}
.topic-index small{color:var(--muted);margin-top:6px}
.topic-index em{font-style:normal;font-size:12px;color:var(--brand);margin-top:12px}
.category-header{display:grid;grid-template-columns:.9fr 1.1fr;gap:50px;align-items:center}
.category-header figure{margin:0}
.category-header img{width:100%;border-radius:var(--radius);aspect-ratio:1.45;object-fit:cover}
.article-page{padding-top:54px;padding-bottom:80px}
.article-head{max-width:900px;padding-bottom:38px;border-bottom:1px solid var(--line)}
.article-info{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:72px;margin-top:44px}
.article-body{font-size:17px}
.article-body p{margin:0 0 22px}
.article-body h2{margin:48px 0 16px;font-size:30px}
.checklist-box{background:var(--soft);padding:28px;border-radius:18px;margin-top:42px}
.checklist-box h2{margin-top:0}
.article-aside{align-self:start;position:sticky;top:110px;display:grid;gap:12px}
.article-aside img{border-radius:18px;margin-bottom:12px}
.article-aside h2{font-size:20px;margin:0 0 4px}
.article-aside a:not(.text-link){font-size:14px;padding:9px 0;border-bottom:1px solid var(--line)}
.name-table{max-width:950px}
.definition-list{border-top:1px solid var(--line)}
.definition-list>div{display:grid;grid-template-columns:220px 1fr;gap:30px;padding:22px 0;border-bottom:1px solid var(--line)}
.definition-list strong{font-size:18px}
.definition-list p{margin:0}
.split-links{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.split-links a{padding:24px;background:rgba(255,255,255,.5);border-radius:18px}
.split-links strong,.split-links span{display:block}
.split-links span{color:var(--muted);font-size:14px;margin-top:7px}
.step-list ol{padding:0;counter-reset:step;display:grid;gap:0}
.step-list li{list-style:none;counter-increment:step;padding:18px 0 18px 64px;border-top:1px solid var(--line);position:relative}
.step-list li:before{content:counter(step,decimal-leading-zero);position:absolute;left:0;color:var(--brand);font-weight:900}
.caution-grid,.policy-body,.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:start}
.caution-grid img,.policy-body img,.contact-layout img{border-radius:var(--radius);width:100%;aspect-ratio:1.4;object-fit:cover}
.caution-grid ul,.contact-layout ul{padding-left:20px}
.caution-grid li,.contact-layout li{margin-bottom:10px}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.principles>div{border-top:1px solid var(--line);padding-top:24px}
.principles span{color:var(--brand);font-weight:900}
.principles h2{font-size:28px;margin-top:10px}
.safety-list{max-width:980px;margin-inline:auto}
.policy-body code{background:var(--soft);padding:2px 5px;border-radius:6px}
.page-search{margin-top:26px}
.page-search label,.search-dialog label{display:block;font-size:13px;font-weight:800;margin-bottom:8px}
.search-form-row{display:flex;gap:10px}
.search-form-row input{flex:1;min-width:0;border:1px solid var(--line);border-radius:999px;background:#fff;padding:12px 16px;color:var(--ink)}
.search-form-row button{border:0;border-radius:999px;background:var(--brand);color:#fff;padding:11px 18px;font-weight:750}
.result-count{color:var(--muted)}
.empty-state{background:var(--soft);padding:30px;border-radius:18px}
.not-found{padding-top:100px;padding-bottom:120px;max-width:860px}
.site-footer{background:#e8e1e9;border-top:1px solid var(--line);padding:58px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:34px}
.footer-grid h2{font-size:15px;margin-bottom:12px}
.footer-grid a{display:block;color:var(--muted);font-size:14px;padding:4px 0}
.footer-grid p{color:var(--muted);font-size:14px;max-width:420px}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:34px;padding-top:18px;color:var(--muted);font-size:13px}
.search-modal[hidden]{display:none !important}
.search-modal{position:fixed;inset:0;z-index:100}
.search-backdrop{position:absolute;inset:0;background:rgba(37,33,42,.64)}
.search-dialog{position:relative;width:min(680px,calc(100% - 32px));margin:12vh auto 0;background:var(--paper);padding:34px;border-radius:24px;box-shadow:var(--shadow)}
.search-dialog h2{margin:0 0 8px}
.search-dialog p{color:var(--muted)}
.search-close{position:absolute;right:16px;top:12px;border:0;background:transparent;font-size:30px;color:var(--muted)}
.back-top{position:fixed;right:18px;bottom:18px;width:42px;height:42px;border:1px solid var(--line);border-radius:50%;background:var(--paper);color:var(--brand);box-shadow:0 10px 30px rgba(37,33,42,.12);opacity:0;pointer-events:none;transition:.2s}
.back-top.visible{opacity:1;pointer-events:auto}
body.modal-open{overflow:hidden}

.method-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.method-groups a{padding:24px;border:1px solid var(--line);border-radius:18px;background:var(--white);display:grid;gap:8px}
.method-groups strong{font-size:22px}
.method-groups small{color:var(--muted)}
.method-number{font-size:13px;color:var(--brand);font-weight:900}
.method-list{max-width:940px}
.method-card{padding:42px 0;border-top:1px solid var(--line)}
.method-card:last-child{border-bottom:1px solid var(--line)}
.method-card-head{display:grid;grid-template-columns:48px 1fr;gap:18px;align-items:start}
.method-card-head>span{color:var(--brand);font-weight:900;padding-top:8px}
.method-card-head h2{margin:0;font-size:34px}
.method-summary{font-size:18px;color:var(--ink)!important;font-weight:650}
.method-card p{max-width:820px}

@media (max-width:1024px){
    .main-nav{gap:16px}
    .lead-grid,.inner-hero,.brand-notes,.dark-grid,.image-text,.category-header{gap:36px}
    .editorial-row{grid-template-columns:140px 1fr}
    .editorial-row p{grid-column:2}
    .editorial-row>.text-link{grid-column:2;grid-row:auto;justify-self:start}
    .article-layout{grid-template-columns:1fr 280px;gap:44px}
}
@media (max-width:860px){
    .menu-toggle{display:inline-flex;margin-left:auto}
    .main-nav{position:absolute;left:24px;right:24px;top:76px;display:none;flex-direction:column;align-items:stretch;background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow)}
    .main-nav.open{display:flex}
    .search-open{padding-inline:12px}
    .lead-grid,.inner-hero,.brand-notes,.dark-grid,.image-text,.image-text.reverse,.category-header,.article-layout,.caution-grid,.policy-body,.contact-layout{grid-template-columns:1fr}
    .image-text.reverse figure{order:0}
    .focus-columns,.principles,.method-groups{grid-template-columns:1fr}
    .focus-item+.focus-item{border-left:0;border-top:1px solid var(--line);padding-left:0}
    .path-block{grid-template-columns:90px 1fr}
    .path-block p,.path-block a{grid-column:2}
    .topic-index{grid-template-columns:1fr}
    .article-aside{position:static;border-top:1px solid var(--line);padding-top:30px}
    .footer-grid{grid-template-columns:1.5fr 1fr}
}
@media (max-width:680px){
    .wrap,.narrow{width:min(100% - 30px,1180px)}
    .site-header .wrap{width:calc(100% - 24px)}
    .brand span{display:none}
    .header-inner{gap:10px;min-height:66px}
    .main-nav{top:66px;left:12px;right:12px}
    .home-lead{padding-top:40px}
    .lead-copy h1,.inner-hero h1,.inner-title h1,.article-head h1,.not-found h1{font-size:38px}
    .section{padding-top:52px;padding-bottom:52px}
    .split-title,.check-band{grid-template-columns:1fr;gap:10px}
    .two-list,.light-topic-grid,.split-links{grid-template-columns:1fr}
    .editorial-row{grid-template-columns:1fr;gap:10px}
    .editorial-row h2,.editorial-row h3,.editorial-row p,.editorial-row>.text-link{grid-column:1}
    .editorial-meta{margin-bottom:4px}
    .path-block{grid-template-columns:1fr}
    .path-block p,.path-block a{grid-column:1}
    .topic-index>a{grid-template-columns:120px 1fr}
    .topic-index img{min-height:100%}
    .definition-list>div{grid-template-columns:1fr;gap:6px}
    .related-row,.closing-line .wrap{align-items:flex-start;flex-direction:column}
    .article-page{padding-top:30px}
    .article-body{font-size:16px}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column}
    .search-dialog{padding:28px 20px;margin-top:8vh}
}
@media (max-width:420px){
    .lead-copy h1,.inner-hero h1,.inner-title h1,.article-head h1,.not-found h1{font-size:34px}
    .button{width:100%}
    .search-open{font-size:13px}
    .focus-item{grid-template-columns:34px 1fr}
    .topic-index>a{grid-template-columns:1fr}
    .topic-index img{height:160px}
    .search-form-row{flex-direction:column}
    .search-form-row button{width:100%}
}