:root{
  --brand:#B9473F;--brand-dark:#8f342f;--amber:#D89A45;--ink:#1E2026;--bg:#F7F4EF;--soft:#EEE9E2;--text:#2B2D31;--muted:#6F706F;--accent:#E06A3B;--line:#d7d0c7;--white:#fff;--shadow:0 18px 55px rgba(30,32,38,.08);--radius:22px;--radius-sm:14px;--max:1180px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}.narrow{width:min(820px,100%)}.skip-link{position:fixed;left:12px;top:-80px;z-index:1000;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{top:12px}.top-note{background:var(--ink);color:#d9d8d6;font-size:13px}.top-note-inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:16px}.top-note a{color:#fff;text-decoration:underline;text-underline-offset:3px}.site-header{position:sticky;top:0;z-index:80;background:rgba(247,244,239,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(215,208,199,.8)}.nav-shell{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;min-width:max-content}.brand img{width:44px;height:44px;object-fit:contain}.brand span{display:flex;flex-direction:column;line-height:1.25}.brand strong{font-size:17px;color:var(--ink)}.brand small{font-size:11px;color:var(--muted);margin-top:4px;letter-spacing:.08em}.site-nav{display:flex;align-items:center;gap:4px}.site-nav a,.search-trigger{border:0;background:transparent;color:#4a4c50;padding:9px 11px;border-radius:9px;cursor:pointer;font-size:14px}.site-nav a:hover,.site-nav a.active,.search-trigger:hover{background:var(--soft);color:var(--brand)}.menu-toggle{display:none;border:1px solid var(--line);background:#fff;padding:8px 12px;border-radius:9px;color:var(--ink)}
.search-modal[hidden]{display:none!important}.search-modal{position:fixed;inset:0;z-index:200;display:grid;place-items:start center;padding-top:12vh}.search-backdrop{position:absolute;inset:0;background:rgba(30,32,38,.72);backdrop-filter:blur(6px)}.search-panel{position:relative;z-index:1;width:min(680px,calc(100% - 32px));background:var(--bg);padding:34px;border-radius:24px;box-shadow:0 30px 80px rgba(0,0,0,.28)}.search-panel h2{margin:4px 0 8px;font-size:30px;line-height:1.25}.search-panel p{color:var(--muted)}.search-close{position:absolute;right:18px;top:16px;border:0;background:transparent;font-size:30px;line-height:1;color:var(--muted);cursor:pointer}.search-form label,.inline-search label,.big-search label{display:block;font-size:13px;font-weight:700;margin-bottom:7px;color:var(--ink)}.search-row,.inline-search>div,.big-search>div{display:flex;gap:8px}.search-row input,.inline-search input,.big-search input{min-width:0;flex:1;border:1px solid var(--line);background:#fff;padding:12px 14px;border-radius:10px;outline:none}.search-row input:focus,.inline-search input:focus,.big-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(185,71,63,.12)}.search-row button,.inline-search button,.big-search button{border:0;background:var(--brand);color:#fff;padding:12px 18px;border-radius:10px;cursor:pointer;font-weight:700}.search-row button:hover,.inline-search button:hover,.big-search button:hover{background:var(--brand-dark)}
.hero,.page-hero{position:relative;overflow:hidden}.home-hero{padding:72px 0 58px;background:linear-gradient(180deg,#f1ece5 0%,var(--bg) 100%)}.hero-grid{display:grid;grid-template-columns:1.03fr .97fr;gap:56px;align-items:center}.hero-copy h1,.page-hero h1{margin:8px 0 18px;color:var(--ink);font-size:clamp(40px,5.2vw,68px);line-height:1.08;letter-spacing:-.035em}.page-hero h1{font-size:clamp(36px,4.4vw,56px)}.eyebrow{margin:0 0 8px;color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.15em;text-transform:uppercase}.eyebrow.light{color:#f0b46a}.lead{font-size:19px;line-height:1.8;color:#57595c;max-width:740px}.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 17px;border-radius:11px;font-weight:750;border:1px solid transparent;transition:.2s ease}.button.primary{background:var(--brand);color:#fff}.button.primary:hover{background:var(--brand-dark);transform:translateY(-1px)}.button.secondary{background:#fff;border-color:var(--line);color:var(--ink)}.button.secondary:hover{border-color:#b8afa4;transform:translateY(-1px)}.hero-points{list-style:none;padding:0;margin:24px 0 0;display:flex;flex-wrap:wrap;gap:9px}.hero-points li{font-size:13px;background:#fff;border:1px solid var(--line);padding:7px 10px;border-radius:999px;color:#5b5c5f}.hero-media{margin:0}.hero-media img{width:100%;aspect-ratio:1.25/1;object-fit:cover;border-radius:30px;box-shadow:var(--shadow)}.hero-media figcaption{font-size:12px;color:var(--muted);padding:8px 8px 0}.compact-hero{padding:58px 0 42px;background:linear-gradient(180deg,#f1ece5,var(--bg))}.compact-hero .two-col{align-items:center}.compact-hero img{border-radius:26px;box-shadow:var(--shadow);aspect-ratio:1.4/1;object-fit:cover}.page-hero:not(.compact-hero){padding:66px 0 50px;background:linear-gradient(180deg,#f1ece5,var(--bg))}.page-hero:not(.compact-hero) img{border-radius:28px;box-shadow:var(--shadow)}
.section{padding:78px 0}.section-heading{max-width:760px;margin-bottom:34px}.section-heading h2,.band-grid h2,.feature-pair h2,.three-note-grid h2,.about-brief h2,.final-cta h2,.compare-grid h2,.principle-box h2,.article-aside h2,.empty-state h2{margin:6px 0 12px;color:var(--ink);font-size:clamp(28px,3.2vw,42px);line-height:1.22;letter-spacing:-.02em}.section-heading p:not(.eyebrow),.split-heading>p{color:var(--muted)}.split-heading{max-width:none;display:grid;grid-template-columns:1fr .8fr;gap:50px;align-items:end}.intent-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.intent-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;min-height:260px;display:flex;flex-direction:column}.intent-card:hover{box-shadow:var(--shadow);transform:translateY(-2px);transition:.2s ease}.card-index{font-size:12px;color:var(--amber);font-weight:800;letter-spacing:.14em}.intent-card h3{margin:22px 0 10px;font-size:21px;line-height:1.3;color:var(--ink)}.intent-card p{color:var(--muted);font-size:14px;flex:1}.intent-card a{color:var(--brand);font-weight:750;font-size:14px}.dark-band{background:var(--ink);color:#e7e5e1}.band-grid{display:grid;grid-template-columns:1fr .9fr;align-items:center;gap:54px}.band-grid h2{color:#fff}.band-grid p:not(.eyebrow){color:#c3c4c5}.band-grid img{border-radius:24px;aspect-ratio:1.45/1;object-fit:cover}.text-link{display:inline-block;color:var(--brand);font-weight:750;margin-top:8px}.text-link.light{color:#efba76}.editorial-list{border-top:1px solid var(--line)}.editorial-item{display:grid;grid-template-columns:180px 1fr 1fr;gap:28px;align-items:start;padding:24px 0;border-bottom:1px solid var(--line)}.meta-line{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:12px}.meta-line span,.meta-line em{font-style:normal}.editorial-item h3{margin:0;font-size:22px;line-height:1.35}.editorial-item h3 a:hover{color:var(--brand)}.editorial-item p{margin:0;color:var(--muted);font-size:14px}.section-cta{margin-top:28px}.warm-panel{background:#efe8de}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}.feature-pair{align-items:center}.feature-pair img,.two-col>img{border-radius:24px;aspect-ratio:1.42/1;object-fit:cover}.inline-search{margin:20px 0}.topic-strip{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.topic-strip article{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden}.topic-strip img{width:100%;aspect-ratio:1.8/1;object-fit:cover}.topic-strip article>div{padding:22px}.topic-strip h3{font-size:23px;margin:0 0 8px}.topic-strip p{color:var(--muted);font-size:14px}.topic-strip a{color:var(--brand);font-weight:750}.timeline-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.timeline-list li{position:relative;padding:24px;background:#fff;border:1px solid var(--line);border-radius:18px}.timeline-list li>span{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800}.timeline-list h3{font-size:18px;margin:18px 0 8px}.timeline-list p{font-size:14px;color:var(--muted);margin:0}.muted-band{background:var(--soft)}.three-note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.three-note-grid article{padding-right:22px;border-right:1px solid #d4cbc0}.three-note-grid article:last-child{border-right:0}.three-note-grid h2{font-size:25px}.three-note-grid p{color:var(--muted)}.three-note-grid a{color:var(--brand);font-weight:750}.faq-home{align-items:start}.faq-home img{margin-top:24px}.faq-list details{border-bottom:1px solid var(--line);padding:0}.faq-list summary{cursor:pointer;list-style:none;font-weight:750;color:var(--ink);padding:18px 34px 18px 0;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";position:absolute;right:4px;top:14px;font-size:24px;color:var(--brand);font-weight:400}.faq-list details[open] summary:after{content:"−"}.faq-list details p{margin:0 0 20px;color:var(--muted)}.faq-list.full summary{font-size:18px}.about-brief img{box-shadow:var(--shadow)}.final-cta{background:var(--brand);color:#fff}.final-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.final-cta h2{color:#fff;max-width:780px}.light-button{background:#fff;color:var(--brand)}.outline-light{border-color:rgba(255,255,255,.5);color:#fff}.outline-light:hover{background:rgba(255,255,255,.12)}
.breadcrumbs{width:min(var(--max),calc(100% - 40px));margin:16px auto 0;display:flex;gap:9px;flex-wrap:wrap;color:var(--muted);font-size:12px}.breadcrumbs a:hover{color:var(--brand)}.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.compare-grid article{background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px}.compare-grid h2{font-size:29px}.compare-grid p{color:var(--muted)}.mini-label{display:inline-flex;background:#f2e1da;color:var(--brand);padding:5px 9px;border-radius:999px;font-size:12px;font-weight:800}.check-list{list-style:none;padding:0;margin:18px 0 0}.check-list li{position:relative;padding:9px 0 9px 24px;border-bottom:1px dashed var(--line)}.check-list li:last-child{border-bottom:0}.check-list li:before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:900}.scenario-table{border-top:1px solid var(--line)}.scenario-table>div{display:grid;grid-template-columns:.6fr 1.4fr;gap:30px;padding:20px 0;border-bottom:1px solid var(--line)}.scenario-table strong{color:var(--ink)}.scenario-table span{color:var(--muted)}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.related-grid article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.related-grid article>span{font-size:12px;color:var(--brand)}.related-grid h3{font-size:19px;line-height:1.35;margin:8px 0}.related-grid h3 a:hover{color:var(--brand)}.related-grid p{font-size:14px;color:var(--muted)}.number-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.number-grid.three{grid-template-columns:repeat(3,1fr)}.number-grid li{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.number-grid li>span{color:var(--amber);font-weight:900;letter-spacing:.12em}.number-grid h3{margin:18px 0 8px;font-size:19px}.number-grid p{margin:0;color:var(--muted);font-size:14px}.link-list{list-style:none;padding:0}.link-list li{display:grid;grid-template-columns:.8fr 1.2fr;gap:20px;padding:12px 0;border-bottom:1px solid var(--line)}.link-list a{font-weight:750;color:var(--ink)}.link-list a:hover{color:var(--brand)}.link-list span{color:var(--muted);font-size:14px}.filter-note{display:flex;justify-content:space-between;gap:20px;padding:15px 0 22px;border-bottom:1px solid var(--line);margin-bottom:24px}.filter-note span{color:var(--muted);font-size:13px}.article-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.article-cards article{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden}.article-cards img{width:100%;aspect-ratio:1.65/1;object-fit:cover}.article-card-body{padding:20px}.article-card-body h2{font-size:20px;line-height:1.35;margin:10px 0}.article-card-body h2 a:hover{color:var(--brand)}.article-card-body p{color:var(--muted);font-size:14px}.article-card-body time{font-size:12px;color:#8a8b8c}.topic-page-grid{display:grid;gap:26px}.topic-page-grid article{display:grid;grid-template-columns:.95fr 1.05fr;background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden}.topic-page-grid article img{width:100%;height:100%;object-fit:cover;min-height:300px}.topic-page-grid article>div{padding:34px}.topic-page-grid h2{font-size:30px;line-height:1.25;margin:12px 0}.topic-page-grid p{color:var(--muted)}.topic-hero .topic-summary-box{margin-top:24px;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:14px;display:grid;gap:4px}.topic-summary-box span{font-size:13px;color:var(--muted)}.topic-reading-list{list-style:none;margin:0;padding:0}.topic-reading-list li{display:grid;grid-template-columns:64px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid var(--line)}.topic-reading-list li>span{font-size:28px;color:var(--amber);font-weight:900}.topic-reading-list h3{margin:8px 0;font-size:24px}.topic-reading-list p{color:var(--muted)}
.article-header{padding:58px 0 32px}.article-header h1{font-size:clamp(38px,5vw,62px);line-height:1.12;letter-spacing:-.03em;margin:8px 0 18px}.article-meta{display:flex;gap:16px;flex-wrap:wrap;color:var(--muted);font-size:13px}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:52px;padding-bottom:70px}.article-cover{margin:0 0 34px}.article-cover img{border-radius:24px;aspect-ratio:1.72/1;object-fit:cover}.article-cover figcaption{font-size:12px;color:var(--muted);margin-top:7px}.article-body{font-size:17px;line-height:1.95}.article-body p{margin:0 0 24px}.article-body h2{margin:42px 0 16px;font-size:29px;line-height:1.3;color:var(--ink)}.article-callout{margin-top:38px;background:#efe8de;border-left:4px solid var(--brand);padding:20px 22px;border-radius:0 14px 14px 0}.article-callout p{margin:5px 0 0}.article-aside{display:grid;align-content:start;gap:16px;position:sticky;top:132px;height:max-content}.aside-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px}.article-aside h2{font-size:18px}.aside-card>a{display:block;padding:12px 0;border-bottom:1px solid var(--line)}.aside-card>a:last-child{border-bottom:0}.aside-card a strong{display:block;font-size:14px}.aside-card a span{display:block;color:var(--muted);font-size:12px;margin-top:4px}.guide-sections{display:grid;gap:20px}.guide-sections article{display:grid;grid-template-columns:90px 1fr;background:#fff;border:1px solid var(--line);border-radius:20px;padding:28px}.guide-no{font-size:34px;font-weight:900;color:var(--amber)}.guide-sections h2{margin:0 0 10px;font-size:28px}.guide-sections ol{margin:0;padding-left:20px}.guide-sections li{padding:6px 0;color:#55575a}.principle-box{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px}.security-list{display:grid;gap:18px}.security-list article{display:grid;grid-template-columns:80px 1fr;gap:22px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:18px}.security-list article>span{display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:var(--ink);color:#fff;font-weight:900}.security-list h2{font-size:24px;margin:0 0 6px}.security-list p{color:var(--muted);margin:0}.search-page-hero{padding:54px 0 34px}.big-search{margin-top:26px}.big-search input,.big-search button{padding:14px 16px}.empty-state{text-align:center;background:#fff;border:1px solid var(--line);border-radius:22px;padding:46px}.tag-links{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:18px}.tag-links a{padding:7px 12px;background:var(--soft);border-radius:999px;font-size:13px}.search-results-head{display:flex;justify-content:space-between;gap:20px;padding-bottom:16px;border-bottom:1px solid var(--line)}.search-results-head span{color:var(--muted);font-size:13px}.search-results article{padding:24px 0;border-bottom:1px solid var(--line)}.search-results article>span{font-size:12px;color:var(--brand);font-weight:800}.search-results h2{font-size:24px;margin:7px 0}.search-results h2 a:hover{color:var(--brand)}.search-results p{margin:0;color:var(--muted)}.error-page{text-align:center;min-height:58vh;display:grid;align-items:center}.error-code{font-size:80px;line-height:1;margin:0;color:var(--brand);font-weight:900;letter-spacing:-.05em}.error-page h1{font-size:40px;margin:14px 0}.error-page p{color:var(--muted)}.error-page .hero-actions{justify-content:center}.error-links{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:30px}.error-links a{background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px;font-size:13px}.site-footer{background:#16181d;color:#c3c5c8;padding:58px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:44px}.footer-grid section{display:grid;align-content:start;gap:8px}.footer-grid h2{font-size:14px;color:#fff;margin:0 0 8px}.footer-grid p{margin:0;color:#aeb0b4;font-size:14px;max-width:360px}.footer-grid a{font-size:13px;color:#d0d1d2}.footer-grid a:hover{color:#fff}.footer-brand{font-size:22px!important;color:#fff!important;font-weight:800}.domain-line{font-size:12px;color:#82858b;margin-top:5px}.footer-bottom{margin-top:40px;padding-top:18px;border-top:1px solid #303238;display:flex;justify-content:space-between;gap:20px;align-items:center;font-size:12px;color:#85888e}.footer-bottom p{margin:0}.back-to-top{color:#ddd}
@media (max-width:1100px){.site-nav a,.search-trigger{padding:8px 7px;font-size:13px}.intent-grid{grid-template-columns:repeat(2,1fr)}.timeline-list{grid-template-columns:repeat(2,1fr)}.article-cards{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}.footer-grid section:last-child{grid-column:2/4}.article-layout{grid-template-columns:minmax(0,1fr) 270px;gap:34px}}
@media (max-width:900px){.top-note{display:none}.site-header{top:0}.nav-shell{min-height:68px}.menu-toggle{display:inline-flex}.site-nav{display:none;position:absolute;left:20px;right:20px;top:76px;background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.site-nav.open{display:flex}.site-nav a,.search-trigger{text-align:left;padding:11px 12px}.hero-grid,.band-grid,.two-col,.split-heading,.topic-page-grid article{grid-template-columns:1fr}.hero-grid{gap:32px}.home-hero{padding-top:50px}.hero-media{max-width:760px}.split-heading{gap:12px}.editorial-item{grid-template-columns:150px 1fr}.editorial-item p{grid-column:2}.three-note-grid{grid-template-columns:1fr}.three-note-grid article{border-right:0;border-bottom:1px solid #d4cbc0;padding:0 0 22px}.three-note-grid article:last-child{border-bottom:0}.final-cta-inner{align-items:flex-start;flex-direction:column}.article-layout{grid-template-columns:1fr}.article-aside{position:static;grid-template-columns:repeat(2,1fr)}.topic-page-grid article img{height:300px}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-grid section:last-child{grid-column:auto}.reverse-on-mobile img{order:-1}}
@media (max-width:700px){.container,.breadcrumbs{width:min(100% - 28px,var(--max))}.brand small{display:none}.hero-copy h1,.page-hero h1{font-size:38px}.lead{font-size:17px}.section{padding:56px 0}.intent-grid,.topic-strip,.compare-grid,.related-grid,.number-grid,.number-grid.three,.article-cards,.footer-grid,.article-aside{grid-template-columns:1fr}.editorial-item{grid-template-columns:1fr;gap:8px}.editorial-item p{grid-column:auto}.timeline-list{grid-template-columns:1fr}.scenario-table>div,.link-list li{grid-template-columns:1fr;gap:4px}.filter-note,.search-results-head{flex-direction:column}.article-header{padding-top:42px}.article-header h1{font-size:38px}.article-layout{padding-bottom:50px}.guide-sections article,.security-list article{grid-template-columns:1fr}.guide-no{font-size:26px}.topic-reading-list li{grid-template-columns:44px 1fr}.error-links{grid-template-columns:repeat(2,1fr)}.search-panel{padding:28px 20px}.search-row,.inline-search>div,.big-search>div{flex-direction:column}.footer-bottom{flex-direction:column;align-items:flex-start}.topic-page-grid article>div{padding:24px}}
@media (max-width:480px){.hero-actions{display:grid}.button{width:100%}.hero-points{display:grid}.home-hero{padding-top:38px}.hero-copy h1,.page-hero h1{font-size:34px}.section-heading h2,.band-grid h2,.feature-pair h2,.three-note-grid h2,.about-brief h2,.final-cta h2{font-size:29px}.intent-card{min-height:auto}.page-hero{padding-top:44px}.article-body{font-size:16px}.article-header h1{font-size:34px}.article-aside{display:block}.aside-card{margin-bottom:14px}.error-links{grid-template-columns:1fr}.brand strong{font-size:16px}}