/* Base */
:root{
    --brand:#C85C3A;
    --amber:#E6B85C;
    --ink:#2B2523;
    --text:#332E2B;
    --muted:#766C66;
    --paper:#FAF7F2;
    --paper-2:#F1EAE2;
    --accent:#D94A32;
    --line:#DED3C9;
    --soft:#FFFDF9;
    --shadow:0 16px 42px rgba(65,45,37,.08);
    --radius:18px;
    --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--paper)}
body{margin:0;color:var(--text);background:var(--paper);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:4px}
button,input{font:inherit}
button{cursor:pointer}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:16px;top:16px;z-index:200;background:var(--ink);color:#fff;padding:10px 14px;border-radius:8px;transform:translateY(-160%);transition:.2s}
.skip-link:focus{transform:none}
.eyebrow{margin:0 0 10px;color:var(--brand);font-size:.82rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.primary-link{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:999px;background:var(--brand);color:#fff;text-decoration:none;font-weight:800;box-shadow:0 7px 20px rgba(200,92,58,.18)}
.primary-link:hover{background:#A94B31}
.text-link{font-weight:800;color:var(--brand);text-decoration:none;border-bottom:1px solid rgba(200,92,58,.35)}
.text-link:hover{border-bottom-color:var(--brand)}
.inline-links{display:flex;gap:16px;flex-wrap:wrap;margin-top:18px}
.inline-links a{font-weight:800;color:var(--brand)}
.site-main{min-height:60vh}
.section-block{width:min(var(--max),calc(100% - 40px));margin:0 auto;padding:74px 0;border-top:1px solid var(--line)}
.section-heading{max-width:760px;margin-bottom:32px}
.section-heading h2,.narrow-heading h2,.compact-heading h2{margin:.1em 0 .45em;color:var(--ink);font-size:clamp(1.7rem,3vw,2.6rem);line-height:1.25;letter-spacing:-.035em}
.section-heading p:last-child,.narrow-heading p:last-child{color:var(--muted);font-size:1.05rem}
.narrow-heading{max-width:720px}
.compact-heading{max-width:860px}

/* Header */
.site-header{position:sticky;top:0;z-index:90;background:rgba(250,247,242,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(222,211,201,.85)}
.header-inner{width:min(var(--max),calc(100% - 32px));height:74px;margin:0 auto;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:28px}
.brand-mark{display:inline-flex;align-items:center;gap:10px;font-size:1.2rem;font-weight:900;color:var(--ink);text-decoration:none;white-space:nowrap}
.brand-mark img{width:42px;height:42px;object-fit:contain;border-radius:10px}
.primary-nav{display:flex;justify-content:center;gap:4px}
.primary-nav a{padding:9px 13px;border-radius:999px;text-decoration:none;font-weight:700;color:#584E49}
.primary-nav a:hover,.primary-nav a[aria-current="page"]{background:var(--paper-2);color:var(--brand)}
.search-open{border:1px solid var(--line);background:var(--soft);color:var(--ink);padding:9px 14px;border-radius:999px;font-weight:800}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--soft);border-radius:10px;padding:9px}
.nav-toggle span:not(.sr-only){display:block;height:2px;background:var(--ink);margin:4px 0}

/* Search modal */
.search-modal[hidden]{display:none!important}
.search-modal{position:fixed;inset:0;z-index:150;display:grid;place-items:start center;padding:9vh 18px 18px}
.search-backdrop{position:absolute;inset:0;background:rgba(43,37,35,.62);backdrop-filter:blur(4px)}
.search-panel{position:relative;width:min(680px,100%);background:var(--paper);border-radius:22px;padding:34px;box-shadow:0 30px 90px rgba(0,0,0,.22)}
.search-panel h2{margin:0 0 20px;color:var(--ink);font-size:clamp(1.5rem,4vw,2.2rem)}
.search-close{position:absolute;top:16px;right:16px;width:40px;height:40px;border:1px solid var(--line);border-radius:50%;background:var(--soft);font-size:1.5rem;line-height:1}
.search-form label,.inline-search label,.results-search-form label{display:block;font-weight:800;margin-bottom:8px}
.search-row,.inline-search div,.results-search-form div{display:flex;gap:10px}
.search-row input,.inline-search input,.results-search-form input{flex:1;min-width:0;border:1px solid var(--line);background:#fff;border-radius:12px;padding:12px 14px;outline:none}
.search-row input:focus,.inline-search input:focus,.results-search-form input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(200,92,58,.12)}
.search-row button,.inline-search button,.results-search-form button{border:0;background:var(--brand);color:#fff;border-radius:12px;padding:0 18px;font-weight:800}
.search-hint{margin:14px 0 0;color:var(--muted);font-size:.92rem}
body.modal-open{overflow:hidden}

/* Home opening */
.home-opening{width:min(1260px,calc(100% - 40px));margin:0 auto;display:grid;grid-template-columns:minmax(0,1.18fr) minmax(320px,.82fr);gap:52px;align-items:center;padding:72px 0 66px}
.opening-copy h1{margin:.08em 0 .5em;color:var(--ink);font-size:clamp(2.6rem,6vw,5.4rem);line-height:1.03;letter-spacing:-.065em;max-width:940px}
.opening-lead{max-width:720px;font-size:1.18rem;color:#574C47}
.opening-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin:28px 0}
.opening-facts{display:flex;gap:28px;flex-wrap:wrap;margin:34px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.opening-facts div{min-width:150px}
.opening-facts dt{font-size:.8rem;color:var(--muted);font-weight:700}
.opening-facts dd{margin:4px 0 0;color:var(--ink);font-weight:900}
.opening-visual{margin:0;position:relative}
.opening-visual img{aspect-ratio:1/1;object-fit:cover;border-radius:34px 34px 120px 34px;box-shadow:var(--shadow)}
.opening-visual figcaption{position:absolute;left:-22px;bottom:22px;width:min(320px,85%);background:rgba(255,253,249,.95);padding:14px 16px;border:1px solid var(--line);border-radius:14px;color:var(--muted);font-size:.88rem;box-shadow:var(--shadow)}

/* Access lines */
.access-lines{border-top:2px solid var(--ink)}
.access-line{display:grid;grid-template-columns:70px 260px 1fr;gap:20px;align-items:center;padding:24px 8px;border-bottom:1px solid var(--line);text-decoration:none;transition:.2s}
.access-line:hover{padding-left:16px;background:rgba(255,255,255,.44)}
.access-line-main strong{color:var(--brand)}
.access-line-soft{opacity:.82}
.access-index{font-family:Georgia,serif;color:var(--muted);font-size:1.15rem}
.access-line strong{font-size:1.25rem;color:var(--ink)}
.access-line span:last-child{color:var(--muted)}

/* Split and editorial */
.split-note{display:grid;grid-template-columns:1.05fr .95fr;gap:58px;align-items:center}
.split-note h2,.mobile-strip h2,.principles h2{margin:.12em 0 .45em;color:var(--ink);font-size:clamp(1.8rem,3.5vw,3rem);line-height:1.18;letter-spacing:-.04em}
.split-note figure,.mobile-strip figure,.principles figure{margin:0}
.split-note img{border-radius:18px 80px 18px 18px;aspect-ratio:1.45/1;object-fit:cover}
.community-preview-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:30px}
.community-preview-head h2{margin:.12em 0 0;color:var(--ink);font-size:clamp(1.8rem,3.5vw,3rem);line-height:1.2}
.community-editorial{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:stretch}
.community-image{margin:0}
.community-image img{height:100%;object-fit:cover;border-radius:20px 80px 20px 20px}
.community-points{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.community-points article{background:var(--soft);padding:28px}
.community-points article span{display:inline-block;color:var(--brand);font-size:.82rem;font-weight:800}
.community-points h3{margin:.3em 0 .35em;color:var(--ink);font-size:1.25rem}
.community-points p{margin:0;color:var(--muted)}

/* Route */
.route-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.route-list li{display:grid;grid-template-columns:190px 1fr 210px;gap:26px;padding:24px 0;border-bottom:1px solid var(--line);align-items:center}
.route-list li>span{font-weight:900;color:var(--ink)}
.route-list p{margin:0;color:var(--muted)}
.route-list a{font-weight:800;color:var(--brand);text-align:right}

/* Mobile */
.mobile-strip{display:grid;grid-template-columns:.78fr 1.22fr;gap:60px;align-items:center}
.mobile-strip figure{margin:0}
.mobile-strip img{aspect-ratio:1/1.04;object-fit:cover;border-radius:110px 20px 20px 20px;background:var(--paper-2)}
.verification-band{display:grid;grid-template-columns:1fr 1.2fr auto;gap:34px;align-items:center;background:var(--ink);color:#F8F3EE;border-top:0;border-radius:24px;padding:42px;margin-top:40px;margin-bottom:40px}
.verification-copy .eyebrow{color:var(--amber)}
.verification-copy h2{margin:.1em 0 .35em;color:#fff;font-size:clamp(1.6rem,3vw,2.35rem);line-height:1.2}
.verification-copy p:last-child{color:#D8CCC5}
.status-legend{display:grid;grid-template-columns:1fr 1fr;border:1px solid #504743;border-radius:14px;overflow:hidden}
.status-legend div{padding:16px 18px;border-right:1px solid #504743;border-bottom:1px solid #504743}
.status-legend div:nth-child(2n){border-right:0}.status-legend div:nth-last-child(-n+2){border-bottom:0}
.status-legend strong,.status-legend span{display:block}.status-legend span{font-size:.86rem;color:#CFC2BA;margin-top:4px}
.band-link{color:#fff;font-weight:800;white-space:nowrap}

/* Search guide */
.search-guide{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center}
.search-guide h2{margin:.12em 0 .45em;color:var(--ink);font-size:clamp(1.8rem,3.5vw,3rem);line-height:1.2}
.search-guide figure{margin:0}.search-guide img{border-radius:20px;aspect-ratio:1.46/1;object-fit:cover}
.inline-search{margin-top:24px;max-width:620px}
.support-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.support-columns>div{padding:26px;border-left:3px solid var(--paper-2);background:rgba(255,255,255,.45)}
.support-columns h3{margin:0 0 14px;color:var(--ink)}
.support-columns a{display:block;padding:10px 0;border-top:1px solid var(--line);font-weight:700;text-decoration:none}
.support-columns a:hover{color:var(--brand)}
.principles{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.principles figure{margin:0}.principles img{border-radius:18px;aspect-ratio:1.45/1;object-fit:cover}
.home-faq-list{display:grid;gap:10px;margin-bottom:20px}
.home-faq-list details,.mini-faq details{border:1px solid var(--line);background:var(--soft);border-radius:12px;padding:0 18px}
.home-faq-list summary,.mini-faq summary{padding:18px 0;font-weight:900;cursor:pointer;color:var(--ink)}
.home-faq-list p,.mini-faq p{margin:0 0 18px;color:var(--muted)}
.closing-map{display:flex;align-items:center;justify-content:space-between;gap:40px;background:var(--paper-2);border-radius:22px;border-top:0;padding:42px;margin-bottom:76px}
.closing-copy{max-width:760px}.closing-copy h2{margin:.1em 0 .3em;color:var(--ink);font-size:clamp(1.7rem,3vw,2.6rem)}

/* Inner base */
.inner-main{width:min(var(--max),calc(100% - 40px));margin:0 auto;padding:24px 0 80px}
.breadcrumb{margin:2px 0 24px;color:var(--muted);font-size:.88rem}
.breadcrumb ol{display:flex;gap:0;flex-wrap:wrap;list-style:none;padding:0;margin:0}
.breadcrumb li:not(:last-child)::after{content:"/";display:inline-block;margin:0 8px;color:#B1A59D}
.breadcrumb a{text-decoration:none}.breadcrumb a:hover{color:var(--brand)}
.article-intro,.index-intro,.search-results-intro{max-width:900px;padding:44px 0 32px}
.article-intro h1,.index-intro h1,.search-results-intro h1{margin:.08em 0 .42em;color:var(--ink);font-size:clamp(2.3rem,5vw,4.6rem);line-height:1.06;letter-spacing:-.055em}
.article-lead,.index-intro p:last-child,.search-results-intro p:last-child{font-size:1.16rem;color:#5E544E;max-width:820px}
.article-figure{margin:10px 0 48px}.article-figure img{width:100%;max-height:560px;object-fit:cover;border-radius:24px}.article-figure figcaption{margin-top:10px;color:var(--muted);font-size:.9rem}
.article-sections{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 54px;align-items:start}
.prose-section{padding:30px 0;border-top:1px solid var(--line)}
.prose-section h2{margin:0 0 14px;color:var(--ink);font-size:1.5rem;line-height:1.35}
.prose-section p{margin:0 0 14px;color:#514843}
.next-paths{margin-top:50px;padding:34px;background:var(--paper-2);border-radius:18px}
.next-paths h2{margin:0 0 18px;color:var(--ink);font-size:1.5rem}
.path-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.path-list a{background:var(--soft);padding:18px;border-radius:12px;text-decoration:none;border:1px solid transparent}
.path-list a:hover{border-color:var(--brand)}
.path-list strong,.path-list span{display:block}.path-list strong{color:var(--ink);margin-bottom:6px}.path-list span{font-size:.9rem;color:var(--muted)}

/* Community */
.community-intro,.app-intro,.report-intro,.faq-intro{display:grid;grid-template-columns:1.2fr .8fr;gap:54px;align-items:center;padding:40px 0 64px}
.community-intro h1,.app-intro h1,.report-intro h1,.faq-intro h1{margin:.08em 0 .42em;color:var(--ink);font-size:clamp(2.3rem,5vw,4.5rem);line-height:1.07;letter-spacing:-.055em}
.community-intro p:last-child,.app-intro p,.report-intro p,.faq-intro p{color:#5D524C;font-size:1.08rem}
.community-intro figure,.app-intro figure,.report-intro figure,.faq-intro figure{margin:0}
.community-intro img{aspect-ratio:1/1;object-fit:cover;border-radius:28px 100px 28px 28px}
.community-groups{padding:56px 0;border-top:1px solid var(--line)}
.community-groups dl{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:0}
.community-groups dl div{padding:22px;border-top:3px solid var(--brand);background:var(--soft)}
.community-groups dt{font-weight:900;color:var(--ink);font-size:1.08rem}.community-groups dd{margin:8px 0 0;color:var(--muted);font-size:.93rem}
.topic-index{padding:56px 0;border-top:1px solid var(--line)}
.topic-table{border-top:2px solid var(--ink)}
.topic-row{display:grid;grid-template-columns:110px 1fr 40px;gap:22px;align-items:start;padding:22px 8px;border-bottom:1px solid var(--line)}
.topic-group{font-size:.78rem;font-weight:900;color:var(--brand);background:#F8E7DF;padding:5px 8px;border-radius:999px;text-align:center}
.topic-row h3{margin:0 0 6px;font-size:1.12rem}.topic-row h3 a{text-decoration:none}.topic-row h3 a:hover{color:var(--brand)}
.topic-row p{margin:0;color:var(--muted);font-size:.93rem}.topic-arrow{text-decoration:none;font-size:1.4rem;color:var(--brand);text-align:right}
.community-rules{padding:58px 0;border-top:1px solid var(--line)}

/* App */
.app-intro img{aspect-ratio:1/1;object-fit:cover;border-radius:100px 26px 26px 26px}
.scenario-list{padding:56px 0;border-top:1px solid var(--line)}
.scenario-rows{border-top:2px solid var(--ink)}
.scenario-rows article{display:grid;grid-template-columns:70px 260px 1fr;gap:22px;padding:22px 6px;border-bottom:1px solid var(--line);align-items:start}
.scenario-rows article>span{font-family:Georgia,serif;color:var(--brand);font-size:1.4rem}
.scenario-rows h3{margin:0;color:var(--ink)}.scenario-rows p{margin:0;color:var(--muted)}
.app-checklist{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center;padding:60px 0;border-top:1px solid var(--line)}
.app-checklist h2{margin:.1em 0 .4em;color:var(--ink);font-size:clamp(1.8rem,3.5vw,3rem)}
.app-checklist ul{padding-left:1.2em}.app-checklist li{margin:10px 0;color:#544A45}.app-checklist figure{margin:0}.app-checklist img{border-radius:22px;aspect-ratio:1.22/1;object-fit:cover}
.mini-faq{padding:56px 0;border-top:1px solid var(--line)}.mini-faq h2{font-size:2rem;color:var(--ink)}

/* Report */
.report-intro img{aspect-ratio:1.45/1;object-fit:cover;border-radius:24px}
.status-board{padding:58px 0;border-top:1px solid var(--line)}
.status-board-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.status-board-grid article{background:var(--soft);padding:26px}.status-board-grid h3{margin:0 0 9px;color:var(--ink)}.status-board-grid p{margin:0;color:var(--muted)}
.source-sequence{padding:60px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;align-items:start}
.source-sequence h2{margin:.1em 0;color:var(--ink);font-size:clamp(1.8rem,3.5vw,3rem)}
.source-sequence ol{list-style:none;padding:0;margin:0;border-top:2px solid var(--ink)}
.source-sequence li{display:grid;grid-template-columns:180px 1fr;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.source-sequence li strong{color:var(--ink)}.source-sequence li span{color:var(--muted)}
.source-sequence .text-link{grid-column:2;margin-top:10px;justify-self:start}
.privacy-caution{padding:58px 0;border-top:1px solid var(--line)}

/* FAQ */
.faq-intro img{aspect-ratio:1.46/1;object-fit:cover;border-radius:24px}
.faq-list{max-width:920px;margin:0 auto;border-top:2px solid var(--ink)}
.faq-list details{border-bottom:1px solid var(--line);padding:0 4px}
.faq-list summary{padding:22px 36px 22px 0;font-size:1.08rem;font-weight:900;color:var(--ink);cursor:pointer;position:relative;list-style:none}
.faq-list summary::-webkit-details-marker{display:none}.faq-list summary::after{content:"+";position:absolute;right:6px;top:17px;font-size:1.5rem;color:var(--brand)}.faq-list details[open] summary::after{content:"−"}
.faq-list details div{padding:0 50px 22px 0;color:var(--muted)}
.faq-next{max-width:980px;margin:50px auto 0}

/* Index */
.index-groups{display:grid;gap:50px}.index-groups section{border-top:2px solid var(--ink);padding-top:20px}.index-groups h2{margin:0 0 20px;color:var(--ink);font-size:1.6rem}
.index-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.index-links a{padding:20px;background:var(--soft);border:1px solid var(--line);border-radius:12px;text-decoration:none}.index-links a:hover{border-color:var(--brand)}.index-links strong,.index-links span{display:block}.index-links strong{color:var(--ink);margin-bottom:6px}.index-links span{color:var(--muted);font-size:.92rem}

/* Search results */
.results-search-form{max-width:760px;margin-bottom:42px;padding:22px;background:var(--paper-2);border-radius:14px}
.result-list{max-width:900px}.result-list>h2{font-size:1.2rem;color:var(--muted);font-weight:700}.result-list article{padding:24px 0;border-top:1px solid var(--line)}.result-list h3{margin:0 0 7px;font-size:1.4rem}.result-list h3 a{text-decoration:none;color:var(--ink)}.result-list h3 a:hover{color:var(--brand)}.result-list p{color:var(--muted)}
.empty-results{max-width:760px;padding:34px;background:var(--paper-2);border-radius:16px}.empty-results h2{margin-top:0;color:var(--ink)}

/* 404 */
.error-main{width:min(900px,calc(100% - 40px));margin:0 auto;padding:100px 0 120px}.error-panel{background:var(--paper-2);padding:50px;border-radius:24px}.error-code{font-family:Georgia,serif;font-size:5rem;line-height:1;margin:0;color:var(--brand)}.error-panel h1{font-size:clamp(2rem,5vw,3.6rem);line-height:1.1;color:var(--ink);margin:.25em 0}.error-panel>p:not(.error-code){color:var(--muted);font-size:1.08rem}.error-links{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin-top:26px}.error-links>a:not(.primary-link){font-weight:800;color:var(--brand)}

/* Footer */
.site-footer{background:var(--ink);color:#F4EDE8;margin-top:40px}
.footer-top{width:min(var(--max),calc(100% - 40px));margin:0 auto;padding:58px 0 42px;display:grid;grid-template-columns:1.45fr repeat(3,1fr);gap:44px}
.footer-logo{color:#fff}.footer-brand p{color:#CFC1B9;max-width:360px}.footer-group h2{margin:0 0 14px;font-size:.95rem;color:#fff}.footer-group ul{list-style:none;margin:0;padding:0}.footer-group li{margin:8px 0}.footer-group a{color:#CFC1B9;text-decoration:none}.footer-group a:hover{color:#fff}
.footer-bottom{width:min(var(--max),calc(100% - 40px));margin:0 auto;padding:18px 0 28px;border-top:1px solid #504743;display:flex;justify-content:space-between;gap:20px;color:#AF9F96;font-size:.86rem}.footer-bottom p{margin:0}.footer-bottom a{color:#D9CDC6}
.back-top{position:fixed;right:20px;bottom:20px;width:44px;height:44px;border:0;border-radius:50%;background:var(--brand);color:#fff;box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s;z-index:80}.back-top.is-visible{opacity:1;pointer-events:auto;transform:none}

/* Responsive */
@media (max-width:1024px){
    .home-opening{grid-template-columns:1fr .78fr;gap:32px}.opening-copy h1{font-size:clamp(2.5rem,6vw,4.2rem)}
    .access-line{grid-template-columns:56px 220px 1fr}.route-list li{grid-template-columns:170px 1fr}.route-list a{grid-column:2;text-align:left}
    .verification-band{grid-template-columns:1fr 1fr}.band-link{grid-column:2;justify-self:start}
    .footer-top{grid-template-columns:1.4fr 1fr 1fr}.footer-group:last-child{grid-column:2/4}.community-groups dl{grid-template-columns:1fr 1fr}
    .status-board-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
    .header-inner{grid-template-columns:auto auto 1fr;gap:12px;height:68px}.brand-mark{grid-column:1}.nav-toggle{display:block;grid-column:2}.search-open{grid-column:3;justify-self:end}.primary-nav{display:none;position:absolute;top:68px;left:16px;right:16px;padding:10px;background:var(--paper);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.primary-nav.is-open{display:flex}.primary-nav a{border-radius:8px}
    .home-opening,.split-note,.community-editorial,.mobile-strip,.search-guide,.principles,.community-intro,.app-intro,.report-intro,.faq-intro,.app-checklist,.source-sequence{grid-template-columns:1fr}
    .home-opening{padding-top:46px}.opening-visual{max-width:620px}.opening-visual figcaption{left:16px}
    .community-preview-head{align-items:start;flex-direction:column}.verification-band{grid-template-columns:1fr}.band-link{grid-column:auto}.status-legend{grid-template-columns:1fr 1fr}
    .support-columns{grid-template-columns:1fr}.article-sections{grid-template-columns:1fr}.path-list{grid-template-columns:1fr}.source-sequence .text-link{grid-column:auto}
    .footer-top{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-group:last-child{grid-column:auto}
}
@media (max-width:640px){
    .section-block,.inner-main,.home-opening,.footer-top,.footer-bottom{width:min(100% - 28px,var(--max))}
    .section-block{padding:54px 0}.home-opening{gap:26px}.opening-copy h1{font-size:2.65rem}.opening-lead{font-size:1.03rem}.opening-actions{align-items:flex-start;flex-direction:column}.opening-facts{gap:18px}
    .access-line{grid-template-columns:44px 1fr;gap:12px}.access-line span:last-child{grid-column:2}.route-list li{grid-template-columns:1fr;gap:7px}.route-list a{grid-column:auto}.closing-map{margin-left:14px;margin-right:14px;flex-direction:column;align-items:flex-start}
    .community-groups dl,.status-board-grid,.index-links{grid-template-columns:1fr}.topic-row{grid-template-columns:1fr 32px}.topic-group{grid-column:1;justify-self:start}.topic-row>div{grid-column:1}.topic-arrow{grid-column:2;grid-row:1/3}
    .scenario-rows article{grid-template-columns:48px 1fr}.scenario-rows p{grid-column:2}.source-sequence li{grid-template-columns:1fr;gap:6px}
    .search-row,.inline-search div,.results-search-form div{flex-direction:column}.search-row button,.inline-search button,.results-search-form button{min-height:44px}
    .footer-top{grid-template-columns:1fr}.footer-group:last-child{grid-column:auto}.footer-bottom{flex-direction:column}.search-panel{padding:28px 20px}.error-panel{padding:32px 24px}.error-main{padding:60px 0 80px}
}
@media (max-width:390px){
    .brand-mark span{font-size:1rem}.brand-mark img{width:38px;height:38px}.search-open{font-size:.88rem;padding:8px 10px}.opening-copy h1{font-size:2.35rem}.article-intro h1,.community-intro h1,.app-intro h1,.report-intro h1,.faq-intro h1,.index-intro h1,.search-results-intro h1{font-size:2.25rem}
}