:root{
  --wine:#7A1F2B;--wine-deep:#5d1720;--gold:#C88A3D;--ink:#171719;--paper:#F5F2EE;
  --paper2:#E9E3DC;--text:#252326;--muted:#716B68;--accent:#D94A3A;--line:#D7CEC5;
  --white:#fff;--max:1180px;--shadow:0 18px 42px rgba(23,23,25,.10);--radius:18px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.72;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px}
button,input{font:inherit}button{cursor:pointer}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 14px;z-index:999}
.skip-link:focus{left:10px;top:10px}
.site-header{position:sticky;top:0;z-index:80;background:rgba(23,23,25,.96);color:#fff;border-bottom:1px solid rgba(255,255,255,.08);backdrop-filter:blur(14px)}
.header-shell{max-width:var(--max);margin:auto;min-height:76px;padding:0 22px;display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;min-width:max-content}
.brand img{width:42px;height:42px;object-fit:contain;border-radius:10px}
.brand-copy{display:flex;flex-direction:column;line-height:1.2}
.brand-copy strong{font-size:1.18rem;letter-spacing:.08em}.brand-copy small{color:#bdb7b4;font-size:.72rem;margin-top:4px}
.primary-nav{display:flex;align-items:center;justify-content:center;gap:6px}
.primary-nav a{padding:10px 12px;border-radius:999px;text-decoration:none;color:#ddd9d6;font-size:.94rem}
.primary-nav a:hover,.primary-nav a[aria-current="page"]{background:rgba(122,31,43,.42);color:#fff}
.search-button,.menu-button{border:1px solid rgba(255,255,255,.18);background:transparent;color:#fff;border-radius:999px;padding:9px 14px}
.menu-button{display:none}.search-button:hover{border-color:var(--gold);color:#f6d6aa}
.search-modal{position:fixed;inset:0;z-index:150;background:rgba(8,8,9,.72);display:grid;place-items:center;padding:24px}
.search-modal[hidden]{display:none!important}
.search-dialog{position:relative;width:min(620px,100%);background:var(--paper);color:var(--text);padding:34px;border-radius:22px;box-shadow:0 26px 80px rgba(0,0,0,.35)}
.search-dialog h2{margin:0 0 8px;font-size:1.8rem}.search-dialog p{margin:0 0 24px;color:var(--muted)}
.search-close{position:absolute;right:18px;top:14px;width:38px;height:38px;border:0;background:var(--paper2);border-radius:50%;font-size:1.5rem}
.search-dialog label,.inline-search label{display:block;font-weight:700;margin-bottom:7px}
.search-form-row,.inline-search>div{display:flex;gap:10px}
.search-form-row input,.inline-search input{flex:1;min-width:0;border:1px solid var(--line);background:#fff;border-radius:10px;padding:12px 14px}
.search-form-row button,.inline-search button{border:0;background:var(--wine);color:#fff;border-radius:10px;padding:12px 20px;font-weight:700}
.section-shell,.inner-main,.article-main{width:min(var(--max),calc(100% - 44px));margin-inline:auto}
.eyebrow{font-size:.78rem;text-transform:uppercase;letter-spacing:.16em;font-weight:800;color:var(--wine);margin:0 0 10px}
.section-heading{margin-bottom:28px}.section-heading h2{margin:0;font-size:clamp(1.7rem,3vw,2.6rem);line-height:1.18;max-width:780px}
.section-heading>p:last-child{color:var(--muted);max-width:760px}
.split-heading{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:48px;align-items:end}
.lead-board{background:var(--ink);color:#fff;padding:42px 0 0}
.lead-shell{width:min(var(--max),calc(100% - 44px));margin:auto;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);grid-template-areas:"heading visual" "index visual";gap:30px 44px;align-items:start}
.lead-heading{grid-area:heading;padding-top:34px}.lead-heading .eyebrow{color:#dfb06b}
.lead-heading h1{font-size:clamp(2.5rem,5.4vw,5rem);line-height:1.03;letter-spacing:-.045em;margin:0 0 24px;max-width:850px}
.lead-intro{font-size:1.08rem;color:#d1cdcb;max-width:740px;margin:0}
.lead-visual{grid-area:visual;margin:0;align-self:stretch;background:#242426;min-height:590px;overflow:hidden;border-radius:22px 22px 0 0;position:relative}
.lead-visual img{width:100%;height:100%;min-height:590px;object-fit:cover;filter:saturate(.74) contrast(1.03)}
.lead-visual figcaption{position:absolute;left:18px;right:18px;bottom:18px;background:rgba(23,23,25,.84);padding:12px 14px;border-left:3px solid var(--gold);font-size:.84rem;color:#eee}
.lead-index{grid-area:index;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:#3a3636;border:1px solid #3a3636;transform:translateY(18px);position:relative;z-index:2}
.lead-index h2{grid-column:1/-1;font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;margin:0;padding:11px 14px;background:#242426;color:#c9c2be}
.lead-index a{background:#201f20;text-decoration:none;padding:16px;display:flex;flex-direction:column;gap:6px}.lead-index a:hover{background:#2d2426}
.lead-index strong{font-size:.98rem}.lead-index span{font-size:.8rem;color:#aaa3a0}
.breaking-strip{background:var(--wine);color:#fff}.breaking-strip .section-shell{display:grid;grid-template-columns:auto 1fr;align-items:stretch}
.strip-label{padding:14px 18px 14px 0;font-weight:800;letter-spacing:.08em;border-right:1px solid rgba(255,255,255,.2)}
.strip-items{display:grid;grid-template-columns:repeat(3,1fr)}
.strip-items a{display:flex;gap:10px;align-items:center;padding:14px 18px;text-decoration:none;border-right:1px solid rgba(255,255,255,.15);min-width:0}
.strip-items time{font-size:.72rem;color:#e7b9be;white-space:nowrap}.strip-items span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.86rem}
.editorial-focus{padding:92px 0 70px}.focus-layout{display:grid;grid-template-columns:minmax(0,1.16fr) minmax(320px,.84fr);gap:44px}
.feature-story{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.feature-story img{width:100%;aspect-ratio:16/9;object-fit:cover}
.feature-story>p,.feature-story>h3,.feature-story>.strong-link{margin-left:28px;margin-right:28px}
.story-kicker{font-size:.78rem;color:var(--wine);font-weight:800;margin-top:24px}
.feature-story h3{font-size:clamp(1.5rem,2.5vw,2.15rem);line-height:1.2;margin-top:8px;margin-bottom:12px}.feature-story h3 a{text-decoration:none}
.feature-story>p:not(.story-kicker){color:var(--muted)}.strong-link{display:inline-block;margin-top:6px;margin-bottom:28px;color:var(--wine);font-weight:800}
.stacked-stories{border-top:2px solid var(--ink)}.stacked-stories article{padding:20px 0 24px;border-bottom:1px solid var(--line)}
.stacked-stories h3{font-size:1.25rem;line-height:1.35;margin:8px 0}.stacked-stories h3 a{text-decoration:none}
.stacked-stories p{color:var(--muted);font-size:.92rem;margin:0}.story-meta{display:flex;gap:12px;align-items:center;font-size:.75rem;color:var(--muted)}
.story-meta span{color:var(--wine);font-weight:800}
.continuous-feed{background:var(--paper2);padding:76px 0}.feed-shell{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:64px}
.topic-rail{align-self:start;position:sticky;top:100px;border-top:3px solid var(--ink)}
.topic-rail h2{font-size:1rem;margin:0;padding:16px 0;border-bottom:1px solid var(--line)}
.topic-rail a{display:block;padding:15px 0;border-bottom:1px solid var(--line);text-decoration:none}.topic-rail strong{display:block}
.topic-rail span{display:block;color:var(--muted);font-size:.82rem;margin-top:4px}
.story-list{display:flex;flex-direction:column}.story-row{padding:24px 0;border-top:1px solid var(--line)}.story-row:first-child{border-top:2px solid var(--ink)}
.story-row h3{font-size:1.3rem;line-height:1.35;margin:8px 0}.story-row h3 a{text-decoration:none}.story-row p{color:var(--muted);margin:0 0 8px}
.text-link{color:var(--wine);font-weight:700;font-size:.9rem}.button-link{display:inline-block;background:var(--wine);color:#fff;text-decoration:none;padding:12px 18px;border-radius:8px;font-weight:800;margin-top:24px}
.button-link.secondary{background:transparent;color:var(--wine);border:1px solid var(--wine)}
.image-note{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:54px;align-items:center;padding:90px 0}
.image-note-media{position:relative}.image-note-media:before{content:"";position:absolute;inset:-18px 32px 18px -18px;background:var(--wine);z-index:-1}
.image-note-media img{width:100%;aspect-ratio:4/3;object-fit:cover}.image-note-copy h2{font-size:clamp(2rem,3.5vw,3.2rem);line-height:1.1;margin:0 0 18px}
.image-note-copy p{font-size:1.03rem;color:var(--muted)}.note-links{display:flex;gap:20px;flex-wrap:wrap;margin-top:22px}.note-links a{font-weight:800;color:var(--wine)}
.timeline-preview{background:var(--ink);color:#fff;padding:78px 0}.timeline-preview-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:70px}
.timeline-preview .eyebrow{color:#dbac67}.timeline-preview h2{font-size:clamp(2rem,3.2vw,3rem);line-height:1.1;margin:0 0 20px}.timeline-preview p{color:#c9c4c1}
.timeline-preview .text-link{color:#f1c98f}.timeline-mini{list-style:none;margin:0;padding:0}
.timeline-mini li{display:grid;grid-template-columns:56px 1fr;column-gap:18px;padding:0 0 22px;position:relative}
.timeline-mini li:before{content:"";position:absolute;left:27px;top:42px;bottom:0;width:1px;background:#4d4848}.timeline-mini li:last-child:before{display:none}
.timeline-mini span{width:56px;height:56px;border:1px solid #5b5454;border-radius:50%;display:grid;place-items:center;color:#d6aa6b}
.timeline-mini strong{align-self:center;font-size:1.08rem}.timeline-mini p{grid-column:2;margin:4px 0 0;font-size:.9rem}
.topic-gallery{padding:88px 0}.topic-gallery-grid{display:grid;grid-template-columns:1.2fr .9fr .9fr;gap:18px}
.topic-image-card{position:relative;overflow:hidden;min-height:320px;background:#222;text-decoration:none}.topic-image-card img{width:100%;height:100%;object-fit:cover;opacity:.82;transition:transform .25s ease}
.topic-image-card:hover img{transform:scale(1.025)}.topic-image-card span{position:absolute;left:18px;bottom:18px;background:rgba(23,23,25,.9);color:#fff;padding:9px 12px;border-left:3px solid var(--gold);font-weight:800}
.brand-utility{display:grid;grid-template-columns:1fr 360px;gap:50px;align-items:center;padding:58px;background:#fff;border:1px solid var(--line);margin-bottom:88px}
.brand-utility h2{font-size:2rem;line-height:1.15}.brand-utility p{color:var(--muted)}.brand-utility img{width:100%;max-height:360px;object-fit:cover}
.home-principles{background:#ded6cf;padding:76px 0}.principle-list{border-top:2px solid var(--ink)}
.principle-list>div{display:grid;grid-template-columns:70px 1fr;gap:20px;padding:18px 0;border-bottom:1px solid #c8beb5}.principle-list span{font-weight:900;color:var(--wine);letter-spacing:.1em}.principle-list p{margin:0}
.site-footer{background:#111112;color:#d8d4d1;padding:62px 0 26px}.footer-grid{width:min(var(--max),calc(100% - 44px));margin:auto;display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:44px}
.footer-grid h2{font-size:.86rem;text-transform:uppercase;letter-spacing:.12em;color:#fff}.footer-grid p{color:#99918d;max-width:430px}
.footer-grid a{display:block;color:#c4bfbb;text-decoration:none;margin:8px 0;font-size:.9rem}.footer-grid a:hover{color:#fff}.footer-brand{font-size:1.35rem!important;font-weight:900;color:#fff!important}
.footer-bottom{width:min(var(--max),calc(100% - 44px));margin:44px auto 0;padding-top:20px;border-top:1px solid #2d2b2b;display:flex;justify-content:space-between;gap:22px;font-size:.78rem;color:#77716e}
.back-top{position:fixed;right:20px;bottom:20px;z-index:50;border:0;background:var(--wine);color:#fff;border-radius:999px;padding:10px 14px;box-shadow:var(--shadow)}
.inner-main,.article-main{padding-top:36px;padding-bottom:80px}.breadcrumb{display:flex;gap:9px;flex-wrap:wrap;font-size:.78rem;color:var(--muted);margin-bottom:28px}.breadcrumb a{color:var(--muted)}
.page-intro{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:48px;align-items:center;padding-bottom:54px;border-bottom:1px solid var(--line)}
.page-intro.compact{display:block;max-width:900px}.page-intro h1{font-size:clamp(2.3rem,5vw,4.6rem);line-height:1.04;letter-spacing:-.04em;margin:0 0 22px}
.page-intro p{font-size:1.06rem;color:var(--muted);max-width:760px}.page-intro img{width:100%;max-height:470px;object-fit:cover}
.text-index{padding:42px 0;border-bottom:1px solid var(--line)}.text-index h2{font-size:1rem;text-transform:uppercase;letter-spacing:.1em}
.inline-index{display:flex;gap:10px;flex-wrap:wrap}.inline-index a{border:1px solid var(--line);background:#fff;padding:9px 12px;border-radius:999px;text-decoration:none}
.category-stream{padding:64px 0 0}.story-list.dense .story-row{display:grid;grid-template-columns:170px 1fr;column-gap:28px}.story-list.dense .story-row .story-meta{grid-row:1/5}.story-list.dense .story-row h3{margin-top:0}
.date-feed{padding-top:56px}.date-feed>h2{font-size:1rem;letter-spacing:.1em;color:var(--wine);margin-top:42px}.date-group{border-top:2px solid var(--ink)}
.date-row{display:grid;grid-template-columns:130px 1fr;gap:30px;padding:24px 0;border-bottom:1px solid var(--line)}.date-row>time{font-weight:800;color:var(--wine)}
.date-row span{font-size:.76rem;color:var(--muted)}.date-row h3{font-size:1.35rem;margin:5px 0}.date-row h3 a{text-decoration:none}.date-row p{margin:0;color:var(--muted)}
.topic-directory{padding-top:42px}.directory-row{display:grid;grid-template-columns:64px 1fr 190px;gap:28px;align-items:center;padding:28px 0;border-bottom:1px solid var(--line)}
.directory-number{font-size:1.7rem;font-weight:900;color:var(--wine)}.directory-row h2{margin:0;font-size:1.55rem}.directory-row h2 a{text-decoration:none}.directory-row p{margin:4px 0 0;color:var(--muted)}
.filtered-topic{padding-top:32px}.back-link{display:inline-block;margin-bottom:20px;color:var(--wine);font-weight:800}
.method-steps{padding:60px 0}.method-steps>h2{font-size:2rem}.method-steps ol{list-style:none;padding:0;border-top:2px solid var(--ink)}
.method-steps li{display:grid;grid-template-columns:280px 1fr;gap:40px;padding:24px 0;border-bottom:1px solid var(--line)}.method-steps strong{font-size:1.16rem}.method-steps p{margin:0;color:var(--muted)}
.evidence-matrix{padding:0 0 70px}.matrix{display:grid;grid-template-columns:repeat(3,1fr);border-top:2px solid var(--ink);border-left:1px solid var(--line)}
.matrix>div{padding:22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);min-height:130px}.matrix strong{display:block;font-size:1.15rem;margin-bottom:10px}.matrix span{font-size:.9rem;color:var(--muted)}
.callout-wide{display:grid;grid-template-columns:1fr 1fr;gap:40px;background:var(--ink);color:#fff;align-items:center;margin:0 calc((100vw - min(var(--max),calc(100vw - 44px)))/-2);padding:0 max(22px,calc((100vw - var(--max))/2))}
.callout-wide img{width:100%;height:100%;min-height:420px;object-fit:cover}.callout-wide>div{padding:50px 0}.callout-wide .eyebrow{color:#e0ae65}.callout-wide h2{font-size:2.4rem;line-height:1.1}.callout-wide p{color:#c9c4c1}.callout-wide .text-link{color:#f0c786}
.related-methods{padding-top:70px}.timeline-guide{padding:50px 0}.timeline-guide-row{display:grid;grid-template-columns:90px 1fr;gap:24px;padding:28px 0;border-bottom:1px solid var(--line)}
.timeline-guide-row>span{font-size:2rem;color:var(--wine);font-weight:900}.timeline-guide-row h2{margin:0;font-size:1.45rem}.timeline-guide-row p{color:var(--muted);max-width:850px}
.timeline-example{display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:center;background:#fff;padding:34px;border:1px solid var(--line);margin-bottom:60px}
.timeline-example img{width:100%;height:100%;min-height:380px;object-fit:cover}.timeline-example h2{font-size:1.8rem}.timeline-example p{color:var(--muted)}
.app-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:50px 0}.app-facts>div{padding:26px;background:#fff;border-top:3px solid var(--wine)}.app-facts h2{font-size:1.2rem}.app-facts p{color:var(--muted)}
.mobile-usage{display:grid;grid-template-columns:420px 1fr;gap:52px;align-items:center;padding:45px 0}.mobile-usage img{width:100%;max-height:430px;object-fit:cover}.mobile-usage li{margin:10px 0}
.guide-paths{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;padding:48px 0}.guide-paths article{background:#fff;border:1px solid var(--line);padding:28px}.guide-paths span{color:var(--wine);font-weight:900}.guide-paths h2{font-size:1.35rem}.guide-paths p{color:var(--muted)}.guide-paths a{color:var(--wine);font-weight:800}
.search-guide{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:center;padding:42px;background:var(--paper2)}.search-guide img{width:100%;max-height:360px;object-fit:cover}.search-guide code,.policy-sections code{background:#ded7d0;padding:2px 5px;border-radius:4px}
.faq-list{max-width:900px;margin:48px auto 0;border-top:2px solid var(--ink)}.faq-item{border-bottom:1px solid var(--line)}.faq-item h2{margin:0;font-size:1rem}
.faq-item button{width:100%;display:flex;justify-content:space-between;gap:20px;text-align:left;padding:20px 0;border:0;background:transparent;font-weight:800}.faq-item button span{font-size:1.4rem;color:var(--wine)}
.faq-answer{padding:0 44px 20px 0;color:var(--muted)}.about-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;padding:48px 0}
.about-columns>div{padding:25px;border-top:3px solid var(--ink);background:#fff}.about-columns h2{font-size:1.2rem}.about-columns p{color:var(--muted)}.principle-panel{padding:32px;background:var(--paper2)}
.policy-sections{padding:42px 0}.policy-sections article{display:grid;grid-template-columns:320px 1fr;gap:42px;padding:24px 0;border-bottom:1px solid var(--line)}.policy-sections h2{font-size:1.25rem;margin:0}.policy-sections p{margin:0;color:var(--muted)}
.safety-links{background:var(--ink);color:#fff;padding:34px;display:flex;gap:18px;align-items:center;flex-wrap:wrap}.safety-links h2{width:100%;margin:0 0 4px}.safety-links a{color:#f1c98f}
.contact-format{padding:44px 0}.contact-format h2{font-size:2rem}.contact-format ol{padding-left:22px}.contact-format li{margin:14px 0}.contact-note{padding:34px;background:#fff;border-left:4px solid var(--wine)}
.inline-search{margin-top:28px;max-width:650px}.search-results{padding-top:42px}
.article-main{max-width:1180px}.article-layout{padding-top:10px}.article-header{max-width:940px;padding:20px 0 38px}.article-status{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.article-status span,.article-status time,.article-tags span{font-size:.76rem;padding:6px 9px;background:var(--paper2);border-radius:999px}.article-status span:first-child{background:var(--wine);color:#fff}
.article-header h1{font-size:clamp(2.3rem,5vw,4.5rem);line-height:1.06;letter-spacing:-.04em;margin:0 0 20px}.article-deck{font-size:1.16rem;color:var(--muted);max-width:820px}
.article-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}.article-grid{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:70px;align-items:start}
.article-body{font-size:1.03rem}.article-intro{font-size:1.16rem;font-weight:600;border-top:2px solid var(--ink);border-bottom:1px solid var(--line);padding:24px 0}
.article-body section{padding:26px 0;border-bottom:1px solid var(--line)}.article-body h2{font-size:1.7rem;line-height:1.25;margin:0 0 14px}.article-body p{margin:0 0 15px}
.checklist-box{background:var(--paper2);padding:28px!important;margin-top:28px;border:0!important}.checklist-box li{margin:9px 0}.article-faq>div{padding:18px 0;border-top:1px dashed var(--line)}.article-faq h3{font-size:1.05rem;margin:0 0 6px}
.article-aside{position:sticky;top:104px;display:flex;flex-direction:column;gap:18px}.aside-panel{padding:20px;background:#fff;border-top:3px solid var(--wine)}.aside-panel h2{font-size:1rem;margin-top:0}.aside-panel p,.aside-panel a{font-size:.86rem;color:var(--muted)}.aside-panel a{display:block;margin:9px 0;color:var(--wine);font-weight:700}
.article-related{padding-top:70px;margin-top:60px;border-top:4px solid var(--ink)}.not-found{min-height:58vh;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;max-width:720px}
.not-found h1{font-size:clamp(2.6rem,6vw,5rem);margin:0}.not-found p{color:var(--muted);font-size:1.1rem}.not-found-links{display:flex;gap:12px;flex-wrap:wrap}
.empty-state{padding:34px;background:#fff;border-left:4px solid var(--wine)}
@media(max-width:1024px){
 .header-shell{grid-template-columns:auto auto auto;justify-content:space-between}.menu-button{display:inline-block}.primary-nav{position:absolute;left:0;right:0;top:76px;background:#1c1c1e;padding:14px 22px;display:none;flex-direction:column;align-items:stretch}.primary-nav[data-open="true"]{display:flex}.primary-nav a{border-radius:7px}
 .lead-shell{grid-template-columns:1fr;grid-template-areas:"heading" "visual" "index";gap:24px}.lead-visual{min-height:440px;border-radius:18px}.lead-visual img{min-height:440px}.lead-index{transform:none;margin-bottom:28px}
 .strip-items{grid-template-columns:1fr}.strip-items a:nth-child(n+2){display:none}.focus-layout,.feed-shell,.timeline-preview-grid,.article-grid{grid-template-columns:1fr}.topic-rail,.article-aside{position:static}.topic-rail{display:grid;grid-template-columns:repeat(2,1fr);gap:0 20px}.topic-rail h2{grid-column:1/-1}
 .topic-gallery-grid{grid-template-columns:1fr 1fr}.topic-image-card:first-child{grid-column:1/-1}.brand-utility{grid-template-columns:1fr 280px;padding:40px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/-1}
 .story-list.dense .story-row{grid-template-columns:145px 1fr}.matrix{grid-template-columns:repeat(2,1fr)}.app-facts{grid-template-columns:1fr}.about-columns{grid-template-columns:1fr 1fr}.policy-sections article{grid-template-columns:240px 1fr}
}
@media(max-width:768px){
 .section-shell,.inner-main,.article-main,.lead-shell{width:min(100% - 30px,var(--max))}.header-shell{padding:0 15px;gap:10px}.brand-copy small{display:none}.search-button{font-size:.82rem;padding:8px 10px}
 .lead-board{padding-top:20px}.lead-heading{padding-top:18px}.lead-heading h1{font-size:clamp(2.35rem,11vw,4rem)}.lead-intro{font-size:1rem}.lead-visual{min-height:330px}.lead-visual img{min-height:330px}
 .lead-index{grid-template-columns:1fr}.lead-index h2{grid-column:auto}.breaking-strip .section-shell{grid-template-columns:90px 1fr}.strip-label{font-size:.8rem}.strip-items a{padding-right:0}
 .editorial-focus,.topic-gallery{padding:60px 0}.split-heading,.image-note,.timeline-preview-grid,.page-intro,.timeline-example,.mobile-usage,.search-guide,.callout-wide{grid-template-columns:1fr}.image-note{gap:32px}.image-note-media:before{inset:-10px 18px 10px -10px}
 .focus-layout{gap:28px}.feed-shell{gap:38px}.topic-rail{grid-template-columns:1fr}.brand-utility{grid-template-columns:1fr;padding:28px;margin-bottom:60px}.brand-utility img{max-height:260px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:26px}.footer-grid>div:last-child{grid-column:auto}.footer-bottom{flex-direction:column}.page-intro{gap:26px}.page-intro h1{font-size:clamp(2.2rem,10vw,3.5rem)}
 .story-list.dense .story-row{display:block}.story-list.dense .story-row .story-meta{margin-bottom:8px}.directory-row{grid-template-columns:50px 1fr}.directory-row>.text-link{grid-column:2}.method-steps li{grid-template-columns:1fr;gap:8px}
 .matrix{grid-template-columns:1fr}.callout-wide{margin:0 calc((100vw - (100vw - 30px))/-2);padding:0 15px}.callout-wide img{min-height:300px}.callout-wide>div{padding:0 0 38px}.date-row{grid-template-columns:1fr;gap:6px}
 .guide-paths{grid-template-columns:1fr}.about-columns{grid-template-columns:1fr}.policy-sections article{grid-template-columns:1fr;gap:8px}.article-grid{gap:36px}.article-header h1{font-size:clamp(2.2rem,10vw,3.6rem)}
}
@media(max-width:600px){
 .brand img{width:36px;height:36px}.brand-copy strong{font-size:1rem}.menu-button{font-size:0;width:40px;height:38px;position:relative}.menu-button:after{content:"☰";font-size:1.1rem;position:absolute;inset:0;display:grid;place-items:center}
 .lead-heading h1{letter-spacing:-.03em}.lead-index a{padding:14px}.feature-story>p,.feature-story>h3,.feature-story>.strong-link{margin-left:20px;margin-right:20px}.section-heading h2{font-size:1.75rem}
 .topic-gallery-grid{grid-template-columns:1fr}.topic-image-card:first-child{grid-column:auto}.topic-image-card{min-height:240px}.brand-utility{padding:22px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:last-child{grid-column:auto}
 .timeline-mini li{grid-template-columns:48px 1fr}.timeline-mini span{width:48px;height:48px}.timeline-mini li:before{left:23px}.search-dialog{padding:28px 20px}.search-form-row{flex-direction:column}
 .article-body h2{font-size:1.42rem}.article-intro{font-size:1.05rem}.article-related{margin-top:34px;padding-top:42px}
}
@media(max-width:375px){
 .header-shell{min-height:68px}.primary-nav{top:68px}.search-button{padding:7px 8px}.lead-visual{min-height:260px}.lead-visual img{min-height:260px}.strip-label{padding-right:8px}.breaking-strip .section-shell{grid-template-columns:80px 1fr}
 .inline-index a{font-size:.82rem}.button-link{width:100%;text-align:center}.not-found-links{width:100%}
}


.deep-guide{padding:52px 0}.deep-guide-row{display:grid;grid-template-columns:72px minmax(0,1fr);gap:26px;padding:30px 0;border-bottom:1px solid var(--line)}
.deep-guide-row:first-child{border-top:2px solid var(--ink)}.deep-guide-no{font-size:1.45rem;font-weight:900;color:var(--wine);letter-spacing:.08em}
.deep-guide-row h2{font-size:1.55rem;line-height:1.28;margin:0 0 12px}.deep-guide-row p{margin:0 0 14px;color:var(--muted);max-width:900px}
.deep-guide-end{background:var(--ink);color:#fff;padding:38px;margin-top:24px}.deep-guide-end h2{font-size:1.8rem;margin-top:0}.deep-guide-end p{color:#c9c4c1}
.deep-guide-end .note-links a{color:#f0c786}
@media(max-width:600px){.deep-guide-row{grid-template-columns:42px 1fr;gap:14px}.deep-guide-row h2{font-size:1.25rem}.deep-guide-end{padding:26px}}