:root {
  --brand:#C85C3A; --support:#E6B85C; --ink:#2B2523; --text:#332E2B; --muted:#766C66;
  --bg:#FAF7F2; --soft:#F1EAE2; --accent:#D94A32; --paper:#FFFDF9; --line:#DED3C8;
  --shadow:0 18px 50px rgba(73,52,43,.10); --radius:24px; --radius-sm:14px;
  --max:1180px; --reading:760px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased} img{max-width:100%;display:block;height:auto} a{color:inherit;text-decoration:none} button,input,textarea{font:inherit} button{cursor:pointer} strong{color:var(--ink)}
.shell{width:min(calc(100% - 40px),var(--max));margin-inline:auto}.narrow{max-width:820px}.skip-link{position:fixed;left:12px;top:12px;transform:translateY(-200%);z-index:200;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{transform:none}.site-header{position:sticky;top:0;z-index:100;background:rgba(250,247,242,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(118,108,102,.18)}.header-inner{min-height:78px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:11px;min-width:180px}.brand img{width:42px;height:42px;object-fit:contain;border-radius:12px}.brand span{display:grid;line-height:1.1}.brand strong{font-size:20px}.brand small{font-size:11px;color:var(--muted);margin-top:6px}.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto}.site-nav a{padding:9px 13px;border-radius:999px;color:var(--muted);font-size:15px}.site-nav a:hover,.site-nav a[aria-current="page"]{background:var(--soft);color:var(--ink)}.search-button,.menu-button{border:1px solid var(--line);background:var(--paper);color:var(--ink);padding:9px 14px;border-radius:999px}.menu-button{display:none}.search-button:hover{border-color:var(--brand);color:var(--brand)}
.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:180;background:rgba(43,37,35,.62);display:grid;place-items:start center;padding:11vh 20px 20px}.modal-open{overflow:hidden}.search-dialog{position:relative;width:min(680px,100%);background:var(--paper);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow)}.search-close{position:absolute;right:16px;top:14px;width:42px;height:42px;border:0;border-radius:50%;background:var(--soft);font-size:28px}.search-dialog h2{margin:0 0 18px;font-size:30px}.search-form label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px}.search-row{display:flex;gap:10px}.search-row input{flex:1;min-width:0;border:1px solid var(--line);background:#fff;border-radius:12px;padding:13px 14px;outline:none}.search-row input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,92,58,.12)}.search-row button,.contact-form button{border:0;background:var(--brand);color:#fff;border-radius:12px;padding:12px 18px;font-weight:700}
.site-main{min-height:60vh}.eyebrow{margin:0 0 8px;color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.08em}.lead{font-size:20px;line-height:1.8;color:#514842}.section-heading{max-width:780px;margin-bottom:28px}.section-heading.compact{margin-bottom:18px}.section-heading h2,.split-rule h2,.method-grid h2,.faq-layout h2,.mobile-note h2,.report-band h2{margin:0 0 12px;font-size:clamp(28px,4vw,42px);line-height:1.25;color:var(--ink)}.section-heading p{color:var(--muted)}
.home-intro{padding:72px 0 58px}.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:center}.intro-copy h1{font-size:clamp(40px,6vw,72px);line-height:1.12;letter-spacing:-.035em;margin:10px 0 22px;max-width:850px;color:var(--ink)}.intro-visual{margin:0;align-self:stretch;display:grid;align-content:center}.intro-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:42px 42px 120px 42px;box-shadow:var(--shadow)}.intro-visual figcaption{color:var(--muted);font-size:13px;margin-top:12px}.domain-card{margin-top:28px;border-left:4px solid var(--brand);padding:14px 18px;background:var(--paper);display:grid;max-width:620px}.domain-card span,.domain-card small{color:var(--muted)}.domain-card strong{font-size:24px;letter-spacing:.03em}.home-checks{padding:54px 0;background:var(--ink);color:#f7f0ea}.split-rule{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px}.split-rule h2{color:#fff}.split-rule p{color:#d9cdc5}.number-list{list-style:none;margin:0;padding:0;counter-reset:item}.number-list li{display:grid;grid-template-columns:180px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.14)}.number-list li:first-child{border-top:1px solid rgba(255,255,255,.14)}.number-list strong{color:var(--support)}.number-list span{color:#f4ebe4}
.route-index,.topic-strip,.method-section,.reading-picks,.home-faq,.closing-index,.section-block{padding:72px 0}.route-table{border-top:1px solid var(--line)}.route-table a{display:grid;grid-template-columns:150px 1.25fr 1fr;gap:24px;align-items:center;padding:22px 10px;border-bottom:1px solid var(--line);transition:.2s}.route-table a:hover{background:var(--paper);padding-left:18px}.route-table span{font-size:13px;color:var(--brand);font-weight:800}.route-table strong{font-size:20px}.route-table em{font-style:normal;color:var(--muted)}
.home-community{padding:84px 0;background:var(--soft)}.community-layout{display:grid;grid-template-columns:.92fr 1.08fr;gap:60px;align-items:center}.community-layout figure{margin:0}.community-layout img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:26px}.community-layout h2{font-size:clamp(28px,4vw,44px);line-height:1.25;margin:0 0 14px}.inline-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.inline-links a,.text-link{color:var(--brand);font-weight:700}.inline-links a{border-bottom:1px solid rgba(200,92,58,.35)}
.topic-strip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--paper)}.topic-strip-grid a{padding:22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:140px}.topic-strip-grid a:nth-child(3n){border-right:0}.topic-strip-grid a:nth-last-child(-n+3){border-bottom:0}.topic-strip-grid strong{display:block;margin-bottom:8px;font-size:18px}.topic-strip-grid span{color:var(--muted);font-size:14px}.topic-strip-grid a:hover{background:#fff8f2}
.mobile-note{padding:64px 0}.mobile-note-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding-top:48px;padding-bottom:48px}.mobile-note figure{margin:0}.mobile-note img{aspect-ratio:16/10;object-fit:cover;border-radius:22px}.report-note{padding:0 0 64px}.report-band{display:grid;grid-template-columns:1fr 1fr;gap:50px;background:var(--brand);color:#fff;border-radius:32px;padding:42px 46px}.report-band h2{color:#fff}.report-band .eyebrow{color:#ffe5d8}.report-band a{display:inline-block;margin-top:14px;border-bottom:1px solid rgba(255,255,255,.6);font-weight:700}.method-section{background:var(--paper)}.method-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:54px}.method-list{display:grid;grid-template-columns:1fr 1fr}.method-list article{padding:4px 24px 26px;border-left:1px solid var(--line);border-bottom:1px solid var(--line)}.method-list article:nth-last-child(-n+2){border-bottom:0}.method-list span{font-size:12px;color:var(--brand);font-weight:800}.method-list h3{margin:5px 0 6px;font-size:20px}.method-list p{margin:0;color:var(--muted)}
.editorial-list{display:grid;gap:0;border-top:1px solid var(--line);margin-bottom:26px}.editorial-list article{display:grid;grid-template-columns:120px 1fr 1.15fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--line);align-items:start}.editorial-list article>span{font-size:12px;color:var(--brand);font-weight:800;padding-top:5px}.editorial-list h3{margin:0;font-size:19px;line-height:1.45}.editorial-list h3 a:hover{color:var(--brand)}.editorial-list p{margin:0;color:var(--muted);font-size:14px}.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:58px}.faq-list details,.faq-page-list details{border-top:1px solid var(--line);padding:18px 0}.faq-list details:last-child,.faq-page-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary,.faq-page-list summary{font-weight:800;cursor:pointer;color:var(--ink)}.faq-list details p,.faq-page-list details p{color:var(--muted);max-width:800px}.faq-page-list{max-width:900px}.closing-index{padding-top:30px}.closing-links{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.closing-links a{background:var(--paper);padding:24px;display:grid}.closing-links span{color:var(--muted);font-size:14px;margin-top:6px}
.breadcrumb{padding-top:22px;display:flex;gap:8px;align-items:center;font-size:13px;color:var(--muted);overflow:auto;white-space:nowrap}.breadcrumb a:hover{color:var(--brand)}.page-lead{padding:54px 0 42px}.page-lead-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:58px;align-items:center}.page-lead h1{font-size:clamp(36px,5vw,60px);line-height:1.16;letter-spacing:-.025em;margin:8px 0 18px;color:var(--ink)}.page-lead figure{margin:0}.page-lead img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:30px}.section-block.muted{background:var(--soft)}.topic-index-list{border-top:1px solid var(--line)}.topic-index-list a{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:18px 0;border-bottom:1px solid var(--line)}.topic-index-list a:hover strong{color:var(--brand)}.topic-index-list strong{font-size:19px}.topic-index-list p{margin:3px 0 0;color:var(--muted)}.topic-index-list span{white-space:nowrap;color:var(--brand);font-weight:700}.two-column-reading{display:grid;grid-template-columns:1fr 1fr;gap:58px;align-items:start}.two-column-reading h2{font-size:34px;line-height:1.25;margin:0 0 16px}.two-column-reading figure{margin:0}.two-column-reading img{border-radius:24px;aspect-ratio:4/3;object-fit:cover}.principle-list p{margin:0;padding:18px 0;border-bottom:1px solid var(--line)}.notice-box{background:var(--ink);color:#eee2da;border-radius:28px;padding:38px}.notice-box h2{color:#fff;margin-top:0}.notice-box a{color:var(--support);font-weight:800}.comparison-rows{border-top:1px solid var(--line)}.comparison-rows article{display:grid;grid-template-columns:220px 1fr;gap:30px;border-bottom:1px solid var(--line);padding:22px 0}.comparison-rows span{font-weight:800;color:var(--ink)}.comparison-rows p{margin:0;color:var(--muted)}.status-list{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.status-list article{background:var(--paper);border:1px solid var(--line);padding:20px;border-radius:18px}.status-list span{color:var(--brand);font-weight:900}.status-list p{font-size:14px;margin-bottom:0}.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.check-grid p{background:var(--paper);border-left:4px solid var(--support);padding:18px;margin:0}.diagnostic-flow{list-style:none;padding:0;margin:0;counter-reset:step}.diagnostic-flow li{display:grid;grid-template-columns:180px 1fr;gap:30px;padding:20px 0;border-bottom:1px solid var(--line)}.diagnostic-flow strong{color:var(--brand)}
.filter-nav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}.filter-nav a{border:1px solid var(--line);padding:8px 12px;border-radius:999px;background:var(--paper)}.filter-nav a[aria-current="page"]{background:var(--ink);color:#fff;border-color:var(--ink)}.filter-nav small{opacity:.65;margin-left:4px}.article-list{border-top:1px solid var(--line)}.article-list article{padding:26px 0;border-bottom:1px solid var(--line)}.article-list article>div{display:flex;gap:14px;color:var(--muted);font-size:12px}.article-list article>div span{color:var(--brand);font-weight:800}.article-list h2{margin:6px 0;font-size:27px;line-height:1.35}.article-list h2 a:hover{color:var(--brand)}.article-list p{max-width:850px;color:var(--muted)}.pagination{display:flex;gap:8px;margin-top:30px}.pagination a{min-width:40px;height:40px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;background:var(--paper)}.pagination a[aria-current="page"]{background:var(--brand);color:#fff;border-color:var(--brand)}
.article-page{padding-bottom:40px}.article-layout{max-width:900px}.article-header{padding:50px 0 26px;border-bottom:1px solid var(--line)}.article-header h1{font-size:clamp(38px,5vw,58px);line-height:1.18;letter-spacing:-.025em;margin:10px 0 18px}.article-meta{display:flex;gap:24px;color:var(--muted);font-size:13px}.article-body{max-width:var(--reading);padding:34px 0}.article-body section{margin-bottom:34px}.article-body h2{font-size:28px;line-height:1.35;margin-bottom:12px}.article-body p{font-size:17px;line-height:2;color:#443c38}.article-callout{background:var(--soft);padding:24px 28px;border-radius:18px;margin-top:42px}.article-callout h2{margin-top:0;font-size:23px}.article-footer{border-top:1px solid var(--line);padding:22px 0}.article-footer a{color:var(--brand);font-weight:800}.related-block{padding-top:36px}.related-links{display:grid;grid-template-columns:1fr 1fr;gap:10px}.related-links a{background:var(--paper);border:1px solid var(--line);padding:16px;border-radius:12px}.related-links a:hover{border-color:var(--brand)}
.policy-prose,.prose-grid{max-width:950px}.policy-prose h2{margin-top:34px;font-size:27px}.policy-prose p{font-size:17px;color:#4f4641}.prose-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.prose-grid article{background:var(--paper);border:1px solid var(--line);padding:26px;border-radius:18px}.prose-grid h2{margin-top:0;font-size:24px}.prose-grid p{color:var(--muted)}.risk-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.risk-grid article{padding:26px;background:var(--paper);border:1px solid var(--line);border-radius:18px}.risk-grid h2{margin:0 0 8px;font-size:22px}.risk-grid p{margin:0;color:var(--muted)}
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:58px}.plain-list{padding-left:20px}.plain-list li{margin-bottom:9px}.contact-form{background:var(--paper);border:1px solid var(--line);padding:26px;border-radius:18px}.contact-form label{display:block;font-weight:800;margin:12px 0 6px}.contact-form input,.contact-form textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;background:#fff;outline:none}.contact-form input:focus,.contact-form textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,92,58,.1)}.contact-form button{margin-top:16px}.form-note{padding:12px 14px;border-radius:10px;margin-bottom:14px}.form-note.success{background:#edf6ec}.form-note.error{background:#fff0eb;color:#8f331f}.page-search{margin-top:26px}.result-count{color:var(--muted)}.search-results{border-top:1px solid var(--line)}.search-results article{padding:22px 0;border-bottom:1px solid var(--line)}.search-results span{font-size:12px;color:var(--brand);font-weight:800}.search-results h2{margin:5px 0;font-size:23px}.search-results p{margin:0;color:var(--muted)}.empty-state{background:var(--paper);border:1px solid var(--line);padding:30px;border-radius:18px}.empty-state h2{margin-top:0}.empty-state a{color:var(--brand);font-weight:800}.error-panel{padding:12vh 0}.error-panel h1{font-size:50px}.link-cluster{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.link-cluster a{padding:10px 14px;background:var(--paper);border:1px solid var(--line);border-radius:999px}
.site-footer{margin-top:60px;background:var(--ink);color:#e7ddd6;padding:58px 0 20px}.footer-grid{display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:36px}.footer-grid h2{font-size:16px;color:#fff}.footer-grid p{color:#cbbdb4;font-size:14px}.footer-grid section{display:flex;flex-direction:column;align-items:flex-start;gap:8px}.footer-grid a{color:#d8ccc4;font-size:14px}.footer-grid a:hover{color:var(--support)}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;display:flex;justify-content:space-between;color:#a99b91;font-size:12px}.back-top{position:fixed;right:20px;bottom:20px;width:46px;height:46px;border:0;border-radius:50%;background:var(--brand);color:#fff;box-shadow:var(--shadow);z-index:90}.back-top[hidden]{display:none}
@media (max-width:1024px){.site-nav{gap:2px}.site-nav a{padding:8px 9px}.intro-grid,.page-lead-grid,.community-layout,.mobile-note-grid{grid-template-columns:1fr 1fr;gap:36px}.split-rule,.method-grid,.faq-layout{gap:36px}.route-table a{grid-template-columns:120px 1fr}.route-table em{grid-column:2}.status-list{grid-template-columns:repeat(3,1fr)}.closing-links{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}.footer-grid section:last-child{grid-column:2/4}}
@media (max-width:860px){.header-inner{min-height:68px}.menu-button{display:inline-block;margin-left:auto}.search-button{padding:8px 10px}.site-nav{display:none;position:absolute;top:68px;left:20px;right:20px;background:var(--paper);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:10px;flex-direction:column;align-items:stretch}.site-nav.is-open{display:flex}.site-nav a{padding:11px 12px}.intro-grid,.page-lead-grid,.community-layout,.mobile-note-grid,.split-rule,.method-grid,.faq-layout,.two-column-reading,.contact-grid{grid-template-columns:1fr}.intro-visual{max-width:700px}.topic-strip-grid{grid-template-columns:1fr 1fr}.topic-strip-grid a:nth-child(n){border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.topic-strip-grid a:nth-child(2n){border-right:0}.topic-strip-grid a:nth-last-child(-n+2){border-bottom:0}.editorial-list article{grid-template-columns:100px 1fr}.editorial-list article p{grid-column:2}.status-list{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid section:last-child{grid-column:auto}.route-table a{grid-template-columns:100px 1fr}.prose-grid{grid-template-columns:1fr}.risk-grid{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.shell{width:min(calc(100% - 28px),var(--max))}.brand{min-width:0}.brand small{display:none}.brand img{width:36px;height:36px}.search-button{font-size:0;width:40px;height:40px;position:relative}.search-button::after{content:'搜';font-size:13px}.home-intro{padding:44px 0}.intro-copy h1{font-size:42px}.lead{font-size:17px}.intro-grid,.page-lead-grid{gap:26px}.intro-visual img{border-radius:28px 28px 70px 28px}.split-rule{gap:28px}.number-list li,.diagnostic-flow li,.comparison-rows article{grid-template-columns:1fr;gap:4px}.route-index,.topic-strip,.method-section,.reading-picks,.home-faq,.section-block{padding:52px 0}.route-table a{grid-template-columns:1fr;gap:5px;padding:18px 4px}.route-table em{grid-column:1}.topic-strip-grid{grid-template-columns:1fr}.topic-strip-grid a:nth-child(n){border-right:0;border-bottom:1px solid var(--line)}.topic-strip-grid a:last-child{border-bottom:0}.report-band{grid-template-columns:1fr;padding:28px;border-radius:22px}.method-list{grid-template-columns:1fr}.method-list article{border-left:0;border-bottom:1px solid var(--line);padding:16px 0}.method-list article:nth-last-child(-n+2){border-bottom:1px solid var(--line)}.method-list article:last-child{border-bottom:0}.editorial-list article{grid-template-columns:1fr;gap:5px;padding:18px 0}.editorial-list article p{grid-column:1}.closing-links,.status-list,.check-grid,.related-links,.risk-grid{grid-template-columns:1fr}.page-lead h1{font-size:38px}.article-header h1{font-size:36px}.article-meta{flex-direction:column;gap:2px}.article-body p{font-size:16px}.article-body h2{font-size:24px}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:5px}.search-dialog{padding:24px 18px}.search-row{flex-direction:column}.search-row button{width:100%}}
@media (max-width:375px){.shell{width:min(calc(100% - 20px),var(--max))}.intro-copy h1,.page-lead h1{font-size:34px}.header-inner{gap:8px}.brand strong{font-size:18px}.menu-button{padding:7px 10px}.report-band{padding:22px}.closing-links a{padding:18px}.article-body{padding-top:24px}}