:root{--brand:#B9473F;--amber:#D89A45;--ink:#1E2026;--paper:#F7F4EF;--paper-2:#EEE9E2;--text:#2B2D31;--muted:#6F706F;--accent:#E06A3B;--line:#D7D0C7;--white:#fffdf9;--shadow:0 18px 50px rgba(30,32,38,.09);--radius:22px;--radius-sm:14px;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);background:var(--paper);font-family:"Noto Sans SC","Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.72;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.skip-link{position:fixed;left:16px;top:12px;z-index:1000;transform:translateY(-160%);background:var(--ink);color:#fff;padding:10px 14px;border-radius:10px}.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:100;background:rgba(247,244,239,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(30,32,38,.08)}.header-shell{width:min(calc(100% - 36px),var(--max));margin:auto;min-height:78px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px}.brand-lockup{display:flex;align-items:center;gap:12px;min-width:230px}.brand-lockup img{width:44px;height:44px;object-fit:contain}.brand-lockup strong{display:block;color:var(--ink);font-size:18px;line-height:1.2}.brand-lockup small{display:block;color:var(--muted);font-size:12px;margin-top:3px}.primary-nav{display:flex;justify-content:center;align-items:center;gap:4px;flex-wrap:wrap}.primary-nav a{padding:9px 11px;border-radius:10px;color:#3d3e41;font-size:14px}.primary-nav a:hover,.primary-nav a:focus-visible{background:var(--paper-2);color:var(--brand)}.search-trigger,.menu-toggle,.solid-button,.ghost-button,.search-row button,.copy-button{border:0;border-radius:12px;padding:11px 15px;font-weight:700}.search-trigger,.solid-button,.search-row button,.copy-button{background:var(--ink);color:#fff}.search-trigger:hover,.solid-button:hover,.search-row button:hover,.copy-button:hover{background:#343740}.menu-toggle{display:none;background:var(--paper-2);color:var(--ink)}main{min-height:70vh}
.shell{width:min(calc(100% - 36px),var(--max));margin:auto}.narrow{width:min(calc(100% - 36px),820px);margin:auto}.section{padding:76px 0}.section.compact{padding:48px 0}.section.dark{background:var(--ink);color:#f7f4ef}.section.alt{background:var(--paper-2)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}.section-head h2{margin:0;color:var(--ink);font-size:clamp(27px,4vw,42px);line-height:1.15}.section.dark .section-head h2{color:#fff}.section-head p{margin:0;max-width:620px;color:var(--muted)}.section.dark .section-head p{color:#c7c4bf}.eyebrow{margin:0 0 10px;text-transform:uppercase;letter-spacing:.08em;color:var(--brand);font-weight:800;font-size:13px}
.hero{position:relative;overflow:hidden;padding:74px 0 52px;background:linear-gradient(180deg,#F7F4EF 0%,#F2ECE4 100%)}.hero::after{content:"";position:absolute;width:360px;height:360px;border-radius:50%;right:-120px;top:-140px;background:rgba(185,71,63,.08)}.hero-grid{position:relative;z-index:1;width:min(calc(100% - 36px),var(--max));margin:auto;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(340px,.9fr);gap:56px;align-items:center}.hero h1{font-size:clamp(40px,6vw,76px);line-height:1.02;margin:0 0 22px;color:var(--ink);letter-spacing:-.04em}.hero .lead{font-size:18px;max-width:720px;color:#4a4b4f;margin:0 0 26px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.solid-button{display:inline-flex;align-items:center;justify-content:center}.ghost-button{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);background:transparent;color:var(--ink)}.ghost-button:hover{background:var(--white)}.hero-media{position:relative;background:var(--ink);border-radius:30px;overflow:hidden;box-shadow:var(--shadow)}.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;opacity:.88}.hero-caption{position:absolute;left:22px;right:22px;bottom:20px;padding:16px 18px;background:rgba(30,32,38,.82);color:#fff;border-radius:14px;backdrop-filter:blur(7px)}.hero-caption strong{display:block;font-size:18px}.hero-caption span{display:block;font-size:13px;color:#d9d4cc;margin-top:4px}
.signal-strip{width:min(calc(100% - 36px),var(--max));margin:28px auto 0;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden}.signal-strip div{background:var(--white);padding:16px}.signal-strip strong{display:block;color:var(--brand)}.signal-strip span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.intent-card,.article-card,.topic-card,.info-card{background:var(--white);border:1px solid rgba(30,32,38,.08);border-radius:var(--radius);overflow:hidden;box-shadow:0 8px 28px rgba(30,32,38,.04)}.intent-card{padding:24px;display:flex;flex-direction:column;gap:13px}.intent-card .tag,.article-card .tag,.topic-card .tag,.status-chip{display:inline-flex;width:max-content;max-width:100%;align-items:center;border-radius:999px;padding:5px 9px;background:#f2dfd7;color:#87352f;font-size:12px;font-weight:800}.intent-card h3,.article-card h3,.topic-card h3{margin:0;color:var(--ink);line-height:1.25}.intent-card p,.article-card p,.topic-card p{margin:0;color:var(--muted)}.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:800;margin-top:auto}.text-link::after{content:"→"}
.feature-band{display:grid;grid-template-columns:.95fr 1.05fr;gap:0;background:var(--ink);border-radius:30px;overflow:hidden;color:#fff}.feature-band img{width:100%;height:100%;min-height:420px;object-fit:cover}.feature-copy{padding:52px}.feature-copy h2{font-size:clamp(30px,4vw,48px);line-height:1.1;margin:0 0 18px}.feature-copy p{color:#d2cfca}.feature-copy ul{padding-left:20px;color:#f4eee8}.feature-copy a{color:#ffd3ad;font-weight:800}
.editorial-list{display:grid;gap:0;border-top:1px solid var(--line)}.editorial-row{display:grid;grid-template-columns:130px 1fr auto;gap:24px;align-items:start;padding:25px 0;border-bottom:1px solid var(--line)}.editorial-row time{color:var(--muted);font-size:13px}.editorial-row h3{margin:0 0 8px;color:var(--ink);font-size:21px}.editorial-row p{margin:0;color:var(--muted)}.editorial-row a{color:var(--brand);font-weight:800;white-space:nowrap}
.mosaic{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}.mosaic-main,.mosaic-side>article{position:relative;overflow:hidden;border-radius:var(--radius);background:var(--ink);color:#fff}.mosaic-main img,.mosaic-side img{width:100%;height:100%;object-fit:cover;opacity:.72}.mosaic-main{min-height:520px}.mosaic-side{display:grid;gap:22px}.mosaic-side>article{min-height:249px}.mosaic-copy{position:absolute;left:0;right:0;bottom:0;padding:30px;background:linear-gradient(180deg,transparent,rgba(30,32,38,.92))}.mosaic-copy h3{margin:0 0 8px;font-size:25px}.mosaic-copy p{margin:0;color:#e7e1da}
.guide-steps{counter-reset:guide;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.guide-step{counter-increment:guide;padding:24px;border-top:3px solid var(--brand);background:var(--white);border-radius:0 0 var(--radius-sm) var(--radius-sm)}.guide-step::before{content:counter(guide,decimal-leading-zero);display:block;color:var(--brand);font-weight:900;font-size:28px;margin-bottom:16px}.guide-step h3{margin:0 0 8px}.guide-step p{margin:0;color:var(--muted)}
.faq-list{display:grid;gap:12px}.faq-item{border:1px solid var(--line);background:var(--white);border-radius:16px;overflow:hidden}.faq-question{width:100%;text-align:left;border:0;background:transparent;padding:18px 20px;color:var(--ink);font-weight:800;display:flex;justify-content:space-between;gap:20px}.faq-question::after{content:"＋";color:var(--brand)}.faq-item.is-open .faq-question::after{content:"－"}.faq-answer{padding:0 20px 18px;color:var(--muted)}.faq-answer[hidden]{display:none!important}
.page-hero{padding:56px 0 34px;border-bottom:1px solid var(--line)}.page-hero-grid{display:grid;grid-template-columns:1fr 330px;gap:46px;align-items:center}.page-hero h1{font-size:clamp(36px,5vw,58px);line-height:1.08;margin:0 0 18px;color:var(--ink);letter-spacing:-.03em}.page-hero .lead{font-size:18px;color:#515257;margin:0}.page-hero img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:24px}.breadcrumbs{width:min(calc(100% - 36px),var(--max));margin:18px auto 0;display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:13px}.breadcrumbs a:hover{color:var(--brand)}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:42px;align-items:start}.prose h2{font-size:30px;line-height:1.2;color:var(--ink);margin:44px 0 14px}.prose h2:first-child{margin-top:0}.prose h3{font-size:22px;color:var(--ink);margin:30px 0 10px}.prose p{margin:0 0 17px;color:#434448}.prose ul,.prose ol{padding-left:24px}.prose li{margin:8px 0}.article-meta{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 0}.article-meta span,.article-meta time{display:inline-flex;padding:6px 10px;background:var(--paper-2);border-radius:999px;color:var(--muted);font-size:12px}
.side-panel{position:sticky;top:108px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:22px}.side-panel h2,.side-panel h3{margin-top:0;color:var(--ink)}.side-links{display:grid;gap:10px}.side-links a{padding:11px 12px;border-radius:10px;background:var(--paper);color:#45464a;font-weight:700}.side-links a:hover{background:var(--paper-2);color:var(--brand)}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.article-card img,.topic-card img{width:100%;aspect-ratio:16/9;object-fit:cover}.article-card .card-body,.topic-card .card-body{padding:21px}.article-card .meta,.topic-card .meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px;margin-top:16px}.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.topic-card ul{margin:15px 0 0;padding-left:20px;color:#4f5054}.topic-card li{margin:7px 0}
.category-index{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.category-item{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:18px;border:1px solid var(--line);border-radius:18px;background:var(--white)}.category-item img{width:120px;height:120px;object-fit:cover;border-radius:14px}.category-item h3{margin:0 0 6px}.category-item p{margin:0;color:var(--muted)}.pill-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.pill{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:5px 9px;font-size:12px;color:var(--muted)}
.notice{padding:18px 20px;border-left:4px solid var(--amber);background:#fff4e3;border-radius:0 14px 14px 0}.notice strong{color:#704413}.check-list{display:grid;gap:12px;margin:20px 0}.check-item{padding:16px 18px;background:var(--white);border:1px solid var(--line);border-radius:14px}.check-item strong{display:block;color:var(--ink);margin-bottom:5px}
.endpoint-box{background:var(--ink);color:#fff;border-radius:22px;padding:26px;display:flex;justify-content:space-between;gap:22px;align-items:center}.endpoint-box code{font-family:Consolas,monospace;color:#ffd5ad;font-size:16px;word-break:break-all}.copy-status{display:block;color:#c7c4bf;font-size:12px;margin-top:7px}
.search-page-form{display:grid;grid-template-columns:1fr auto;gap:10px;margin:20px 0 28px}.search-page-form input{width:100%;border:1px solid var(--line);background:var(--white);border-radius:12px;padding:13px 14px;color:var(--ink)}.search-result{padding:22px 0;border-bottom:1px solid var(--line)}.search-result:first-child{border-top:1px solid var(--line)}.search-result h2{font-size:23px;margin:4px 0 9px}.search-result p{margin:0;color:var(--muted)}.search-result .result-type{font-size:12px;color:var(--brand);font-weight:800}.search-result a:hover h2{color:var(--brand)}.empty-state{padding:36px;border:1px dashed #bdb5ab;border-radius:20px;background:var(--white)}.empty-state h2{margin-top:0}
.search-modal{position:fixed;inset:0;z-index:500;display:grid;place-items:start center;padding:12vh 20px 20px}.search-modal[hidden]{display:none!important}.search-backdrop{position:absolute;inset:0;background:rgba(30,32,38,.7)}.search-dialog{position:relative;z-index:1;width:min(100%,680px);background:var(--paper);border-radius:24px;padding:30px;box-shadow:0 30px 90px rgba(0,0,0,.28)}.search-dialog h2{margin:0 0 18px;font-size:30px}.dialog-close{position:absolute;right:14px;top:12px;border:0;background:transparent;color:var(--muted);font-size:32px;line-height:1}.search-form label{display:block;font-weight:800;margin-bottom:8px}.search-row{display:grid;grid-template-columns:1fr auto;gap:9px}.search-row input{min-width:0;border:1px solid var(--line);border-radius:12px;background:#fff;padding:12px 13px}.search-note{color:var(--muted);font-size:13px;margin:12px 0 0}body.modal-open{overflow:hidden}
.site-footer{background:var(--ink);color:#dedad4;padding:56px 0 24px;margin-top:70px}.footer-grid{width:min(calc(100% - 36px),var(--max));margin:auto;display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:32px}.footer-grid h2{color:#fff;font-size:16px;margin:0 0 14px}.footer-grid p{margin:0;color:#bdb9b4}.footer-grid a{display:block;color:#d6d1ca;margin:7px 0;font-size:14px}.footer-grid a:hover{color:#ffd0ab}.footer-base{width:min(calc(100% - 36px),var(--max));margin:38px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.13);display:flex;justify-content:space-between;gap:20px;align-items:center}.footer-base p{margin:0;color:#aaa6a0;font-size:13px}.back-top{border:1px solid rgba(255,255,255,.2);background:transparent;color:#fff;padding:8px 10px;border-radius:10px}.error-code{font-size:clamp(72px,16vw,180px);line-height:.8;color:#d8cec5;font-weight:900;margin:0}.kicker-row{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.kicker{padding:7px 10px;border-radius:999px;background:var(--paper-2);color:var(--muted);font-size:12px}
@media (max-width:1100px){.header-shell{grid-template-columns:auto auto 1fr}.menu-toggle{display:inline-flex;justify-self:end}.primary-nav{position:absolute;left:18px;right:18px;top:70px;display:none;flex-direction:column;align-items:stretch;background:var(--paper);border:1px solid var(--line);padding:12px;border-radius:16px;box-shadow:var(--shadow)}.primary-nav.is-open{display:flex}.search-trigger{justify-self:end}.hero-grid{grid-template-columns:1fr .9fr;gap:34px}.card-grid,.article-grid{grid-template-columns:repeat(2,1fr)}.guide-steps{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){.hero{padding-top:48px}.hero-grid,.page-hero-grid,.feature-band,.mosaic,.two-col{grid-template-columns:1fr}.hero-media{max-width:620px}.signal-strip{grid-template-columns:repeat(2,1fr)}.feature-band img{min-height:300px}.feature-copy{padding:34px}.mosaic-main{min-height:420px}.side-panel{position:static}.category-index{grid-template-columns:1fr}}
@media (max-width:640px){.header-shell{width:min(calc(100% - 24px),var(--max));grid-template-columns:1fr auto auto;gap:8px}.brand-lockup{min-width:0}.brand-lockup img{width:38px;height:38px}.brand-lockup small{display:none}.search-trigger{padding:9px 10px;font-size:13px}.menu-toggle{padding:9px 10px;font-size:13px}.shell,.narrow,.breadcrumbs{width:min(calc(100% - 24px),var(--max))}.section{padding:56px 0}.section-head{display:block}.section-head p{margin-top:10px}.hero-grid{width:min(calc(100% - 24px),var(--max))}.hero h1{font-size:42px}.hero .lead{font-size:16px}.signal-strip{width:min(calc(100% - 24px),var(--max));grid-template-columns:1fr}.card-grid,.article-grid,.topic-grid,.guide-steps{grid-template-columns:1fr}.editorial-row{grid-template-columns:1fr;gap:8px}.editorial-row a{justify-self:start}.category-item{grid-template-columns:88px 1fr}.category-item img{width:88px;height:88px}.page-hero{padding-top:38px}.page-hero h1{font-size:38px}.search-page-form,.search-row{grid-template-columns:1fr}.endpoint-box{display:block}.endpoint-box .copy-button{margin-top:14px}.footer-grid{grid-template-columns:1fr}.footer-base{display:block}.footer-base .back-top{margin-top:14px}.search-dialog{padding:26px 20px}}
@media (max-width:390px){.brand-lockup strong{font-size:15px}.brand-lockup img{display:none}.hero-actions>a{width:100%}.hero h1{font-size:37px}.page-hero h1{font-size:34px}}