:root {
  --brick: #B9473F;
  --amber: #D89A45;
  --charcoal: #1E2026;
  --paper: #F7F4EF;
  --paper-2: #EEE9E2;
  --text: #2B2D31;
  --muted: #6F706F;
  --accent: #E06A3B;
  --line: rgba(30,32,38,.14);
  --shadow: 0 18px 50px rgba(30,32,38,.10);
  --radius: 22px;
  --content: min(1180px, calc(100% - 40px));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--text); font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif; line-height: 1.72; }
body.modal-open { overflow: hidden; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--brick); }
img { display: block; max-width: 100%; height: auto; }
button,input { font: inherit; }
button { cursor: pointer; }
code { padding: .12em .35em; background: var(--paper-2); border-radius: 6px; }
.skip-link { position: fixed; left: 16px; top: 10px; transform: translateY(-160%); background: var(--charcoal); color: white; padding: 10px 14px; z-index: 1000; }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; top: 0; z-index: 80; background: rgba(247,244,239,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(16px); }
.header-shell { width: var(--content); margin: 0 auto; min-height: 76px; display: flex; align-items: center; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; min-width: 230px; }
.brand img { width: 48px; height: 48px; object-fit: contain; border-radius: 14px; }
.brand span { display: grid; line-height: 1.2; }
.brand strong { font-size: 17px; }
.brand small { color: var(--muted); font-size: 12px; margin-top: 4px; }
.primary-nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.primary-nav a { padding: 10px 11px; text-decoration: none; font-size: 14px; border-radius: 999px; }
.primary-nav a:hover { background: var(--paper-2); color: var(--brick); }
.search-open,.menu-toggle { border: 1px solid var(--line); background: transparent; padding: 9px 13px; border-radius: 999px; color: var(--text); }
.search-open:hover,.menu-toggle:hover { border-color: var(--brick); color: var(--brick); }
.menu-toggle { display: none; }
.search-modal[hidden] { display: none !important; }
.search-modal { position: fixed; inset: 0; z-index: 200; display: grid; place-items: start center; padding-top: 10vh; }
.search-backdrop { position: absolute; inset: 0; background: rgba(30,32,38,.64); }
.search-panel { position: relative; width: min(720px, calc(100% - 32px)); background: var(--paper); border-radius: 24px; padding: 24px; box-shadow: var(--shadow); }
.search-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.search-panel-head h2 { margin: 0; font-size: 24px; }
.icon-button { border: 1px solid var(--line); background: transparent; border-radius: 999px; padding: 8px 12px; }
.search-form label,.inline-search label { display: block; margin: 18px 0 8px; font-weight: 700; }
.search-row,.inline-search > div { display: flex; gap: 10px; }
.search-row input,.inline-search input { flex: 1; min-width: 0; border: 1px solid var(--line); border-radius: 14px; background: white; padding: 13px 14px; color: var(--text); }
.search-row button,.inline-search button { border: 0; border-radius: 14px; padding: 12px 18px; background: var(--brick); color: white; font-weight: 700; }
.section-shell { width: var(--content); margin: 0 auto; padding: 72px 0; }
.eyebrow { margin: 0 0 10px; color: var(--brick); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.section-heading { max-width: 760px; margin-bottom: 28px; }
.section-heading h2,.page-heading h1,.page-hero h1 { margin: 0 0 14px; font-size: clamp(30px,4vw,52px); line-height: 1.14; letter-spacing: -.03em; }
.section-heading h2 { font-size: clamp(26px,3.2vw,42px); }
.section-heading p,.page-heading > p:last-child { color: var(--muted); font-size: 17px; }
.hero { min-height: 660px; display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
.hero-copy h1 { margin: 0; max-width: 780px; font-size: clamp(42px,5.7vw,76px); line-height: 1.04; letter-spacing: -.045em; color: var(--charcoal); }
.hero-lede { max-width: 760px; margin: 24px 0 0; font-size: 18px; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 46px; padding: 10px 18px; border-radius: 999px; font-weight: 800; text-decoration: none; }
.button.primary { background: var(--brick); color: white; border: 1px solid var(--brick); }
.button.secondary { border: 1px solid var(--line); background: rgba(255,255,255,.35); }
.button:hover { transform: translateY(-1px); }
.hero-note { margin-top: 28px; display: flex; gap: 10px; max-width: 720px; padding: 14px 16px; border-left: 3px solid var(--amber); background: var(--paper-2); }
.hero-note span { color: var(--muted); }
.hero-media { margin: 0; position: relative; }
.hero-media img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: 36px 36px 120px 36px; box-shadow: var(--shadow); }
.intro-band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.split-text { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; font-size: 18px; }
.split-text p { margin: 0; }
.route-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
.route-card { display: grid; grid-template-columns: 180px 1fr; min-height: 210px; background: white; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.route-card img { width: 100%; height: 100%; object-fit: cover; }
.route-card div { padding: 24px; }
.route-card h3 { margin: 0 0 8px; font-size: 22px; }
.route-card p { color: var(--muted); margin: 0 0 18px; }
.route-card a,.text-link { color: var(--brick); font-weight: 800; }
.feature-strip { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: stretch; background: var(--charcoal); color: white; width: 100%; padding-left: max(20px, calc((100% - 1180px)/2)); padding-right: max(20px, calc((100% - 1180px)/2)); }
.feature-media img { width: 100%; height: 100%; min-height: 440px; object-fit: cover; border-radius: 24px; }
.feature-copy { align-self: center; max-width: 620px; }
.feature-copy h2 { font-size: clamp(30px,4vw,48px); line-height: 1.14; margin: 0 0 16px; }
.feature-copy p { color: rgba(255,255,255,.74); }
.check-list { padding-left: 20px; }
.check-list li { margin: 7px 0; }
.feature-copy .text-link { color: #f6b562; }
.editor-list { border-top: 1px solid var(--line); }
.editor-item { display: grid; grid-template-columns: 76px 1fr; gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.index-no { font-size: 34px; font-weight: 900; color: rgba(185,71,63,.45); }
.meta-line { display: flex; flex-wrap: wrap; gap: 12px; color: var(--muted); font-size: 13px; }
.editor-item h3 { margin: 5px 0 6px; font-size: 24px; }
.editor-item h3 a { text-decoration: none; }
.editor-item p { margin: 0; color: var(--muted); }
.topic-preview { background: var(--paper-2); }
.topic-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; margin-bottom: 28px; }
.topic-grid article { background: var(--paper); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.topic-grid img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.topic-grid article div { padding: 20px; }
.topic-grid h3 { margin: 0 0 6px; font-size: 22px; }
.topic-grid p { margin: 0; color: var(--muted); }
.two-column { display: grid; grid-template-columns: 1fr .9fr; gap: 48px; align-items: center; }
.two-column h2 { font-size: clamp(28px,3.5vw,46px); line-height: 1.15; margin: 0 0 16px; }
.two-column img { width: 100%; border-radius: 28px; aspect-ratio: 4/3; object-fit: cover; box-shadow: var(--shadow); }
.guide-ribbon { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.mini-guide-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; }
.mini-guide { display: grid; gap: 6px; text-decoration: none; padding: 20px; border-radius: 18px; background: white; border: 1px solid var(--line); }
.mini-guide strong { font-size: 18px; }
.mini-guide span { color: var(--muted); }
.trust-band { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; background: #2a2929; color: white; width: 100%; padding-left: max(20px, calc((100% - 1180px)/2)); padding-right: max(20px, calc((100% - 1180px)/2)); }
.trust-band h2 { margin: 0 0 14px; font-size: clamp(28px,4vw,46px); }
.trust-band p { color: rgba(255,255,255,.72); }
.trust-band img { border-radius: 24px; max-height: 360px; width: 100%; object-fit: cover; }
.trust-band .text-link { color: #f6b562; }
.faq-list { display: grid; gap: 12px; }
.faq-list details { background: white; border: 1px solid var(--line); border-radius: 16px; padding: 0 18px; }
.faq-list summary { padding: 18px 28px 18px 0; font-weight: 800; cursor: pointer; }
.faq-list p { margin: 0 0 18px; color: var(--muted); }
.compact-faq { max-width: 900px; }
.editorial-note { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.editorial-note h2 { margin: 0; font-size: clamp(26px,3.2vw,42px); }
.editorial-note p { margin-top: 0; color: var(--muted); }
.final-cta { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: center; }
.final-cta img { width: 100%; border-radius: 28px; aspect-ratio: 16/10; object-fit: cover; }
.final-cta h2 { font-size: clamp(28px,4vw,48px); line-height: 1.12; margin: 0 0 14px; }
.breadcrumb { width: var(--content); margin: 22px auto 0; font-size: 13px; color: var(--muted); }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0; }
.breadcrumb li:not(:last-child)::after { content: '›'; margin-left: 8px; }
.breadcrumb a { text-decoration: none; }
.page-hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; padding-top: 54px; }
.page-hero > div > p:last-child { color: var(--muted); font-size: 18px; }
.page-hero img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 30px; box-shadow: var(--shadow); }
.page-heading { padding-top: 52px; padding-bottom: 44px; max-width: 920px; margin-left: max(20px, calc((100% - 1180px)/2)); }
.compare-grid,.info-grid,.warning-list { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 16px; }
.info-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
.warning-list { grid-template-columns: repeat(2,minmax(0,1fr)); }
.compare-grid article,.info-grid article,.warning-list article { background: white; padding: 24px; border: 1px solid var(--line); border-radius: 18px; }
.compare-grid h3,.info-grid h3,.warning-list h3 { margin-top: 0; }
.compare-grid p,.info-grid p,.warning-list p { color: var(--muted); }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 18px; background: white; }
table { width: 100%; border-collapse: collapse; min-width: 680px; }
th,td { text-align: left; padding: 16px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--paper-2); }
.process-list { display: grid; gap: 0; }
.process-list article { display: grid; grid-template-columns: 72px 1fr; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.process-list article > span { font-size: 32px; font-weight: 900; color: var(--brick); }
.process-list h3,.process-list h2 { margin: 0 0 6px; }
.process-list p { margin: 0; color: var(--muted); }
.number-steps { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; counter-reset: step; }
.number-steps li { counter-increment: step; display: grid; gap: 8px; background: white; border: 1px solid var(--line); border-radius: 18px; padding: 22px; }
.number-steps li::before { content: '0' counter(step); color: var(--brick); font-weight: 900; font-size: 28px; }
.number-steps strong { font-size: 20px; }
.number-steps span { color: var(--muted); }
.topic-stack { display: grid; gap: 26px; }
.topic-row { display: grid; grid-template-columns: 320px 1fr; gap: 30px; padding: 24px; border: 1px solid var(--line); border-radius: 24px; background: white; }
.topic-row img { width: 100%; height: 100%; min-height: 280px; object-fit: cover; border-radius: 16px; }
.topic-row h2 { margin: 0 0 6px; font-size: 28px; }
.topic-row > div > p { color: var(--muted); }
.topic-row ul { list-style: none; margin: 18px 0 0; padding: 0; border-top: 1px solid var(--line); }
.topic-row li { display: grid; gap: 3px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.topic-row li a { font-weight: 800; text-decoration: none; }
.topic-row li span { color: var(--muted); font-size: 14px; }
.article-catalog { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 22px; padding-top: 20px; }
.catalog-item { display: flex; flex-direction: column; background: white; border: 1px solid var(--line); border-radius: 22px; overflow: hidden; }
.catalog-item > img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.catalog-item > div,.catalog-item > h2,.catalog-item > p,.catalog-item > a { margin-left: 22px; margin-right: 22px; }
.catalog-item > div { margin-top: 18px; }
.catalog-item h2 { margin-top: 8px; margin-bottom: 8px; font-size: 24px; line-height: 1.25; }
.catalog-item h2 a { text-decoration: none; }
.catalog-item p { color: var(--muted); flex: 1; }
.catalog-item > a { margin-bottom: 22px; }
.article-page { max-width: 980px; }
.article-header { max-width: 900px; margin: 0 auto; }
.article-header h1 { margin: 10px 0 16px; font-size: clamp(34px,5vw,60px); line-height: 1.08; letter-spacing: -.035em; }
.article-deck { color: var(--muted); font-size: 19px; }
.article-header img { width: 100%; max-height: 520px; object-fit: cover; border-radius: 28px; margin-top: 28px; }
.article-body { max-width: 780px; margin: 48px auto 0; font-size: 18px; }
.article-body section { margin: 0 0 44px; }
.article-body h2 { font-size: 30px; line-height: 1.25; margin-bottom: 14px; }
.article-body p { margin: 0 0 16px; }
.article-body ul { padding-left: 22px; }
.article-body li { margin: 8px 0; }
.related-box { max-width: 840px; margin: 40px auto 0; padding: 26px; background: var(--paper-2); border-radius: 22px; }
.related-box h2 { margin-top: 0; }
.related-box > div { display: grid; gap: 10px; }
.related-box > div > a { display: grid; gap: 4px; padding: 14px; background: var(--paper); border-radius: 14px; text-decoration: none; }
.related-box span { color: var(--muted); font-size: 14px; }
.guide-catalog { padding-top: 10px; display: grid; gap: 18px; }
.guide-catalog article { display: grid; grid-template-columns: 60px 220px 1fr; gap: 24px; align-items: center; padding: 20px; background: white; border: 1px solid var(--line); border-radius: 20px; }
.guide-no { font-size: 34px; font-weight: 900; color: rgba(185,71,63,.5); }
.guide-catalog img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 14px; }
.guide-catalog h2 { margin: 0 0 8px; font-size: 25px; }
.guide-catalog h2 a { text-decoration: none; }
.guide-catalog p { color: var(--muted); }
.guide-page { max-width: 920px; }
.guide-page > header { max-width: 820px; }
.guide-page > header h1 { font-size: clamp(34px,5vw,58px); line-height: 1.08; margin: 0 0 14px; }
.guide-page > header img { margin-top: 26px; width: 100%; max-height: 480px; object-fit: cover; border-radius: 26px; }
.guide-steps { margin-top: 46px; }
.guide-steps h2 { font-size: 30px; }
.guide-steps ol { list-style: none; margin: 0; padding: 0; }
.guide-steps li { display: grid; grid-template-columns: 66px 1fr; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.guide-steps li span { font-size: 28px; font-weight: 900; color: var(--brick); }
.note-box { margin-top: 36px; padding: 24px; border-radius: 20px; background: #f0e3d5; border: 1px solid rgba(216,154,69,.4); }
.note-box h2 { margin-top: 0; }
.guide-next { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 12px; }
.guide-next a { display: inline-flex; padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; text-decoration: none; }
.policy-content { max-width: 860px; font-size: 17px; }
.policy-content h2 { margin: 38px 0 10px; font-size: 28px; }
.policy-content p { color: var(--muted); }
.inline-search { max-width: 720px; }
.supporting-link { margin-top: 12px; }
.search-results { padding-top: 10px; }
.search-result { padding: 22px 0; border-bottom: 1px solid var(--line); }
.search-result > span { color: var(--brick); font-size: 13px; font-weight: 800; }
.search-result h2 { margin: 5px 0 8px; font-size: 24px; }
.search-result h2 a { text-decoration: none; }
.search-result p { color: var(--muted); margin: 0; max-width: 820px; }
.empty-state { padding: 34px; border: 1px dashed rgba(30,32,38,.26); border-radius: 22px; background: rgba(255,255,255,.35); }
.not-found { min-height: 70vh; display: grid; grid-template-columns: 1fr .8fr; gap: 46px; align-items: center; }
.error-code { color: var(--brick); font-weight: 900; font-size: 92px; line-height: 1; margin: 0; }
.not-found h1 { font-size: clamp(34px,5vw,58px); line-height: 1.08; margin: 12px 0 18px; }
.not-found img { width: 100%; border-radius: 30px; }
.site-footer { background: var(--charcoal); color: white; margin-top: 60px; }
.footer-grid { width: var(--content); margin: 0 auto; padding: 52px 0 36px; display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 44px; }
.footer-grid h2 { font-size: 17px; margin-top: 0; }
.footer-grid p { color: rgba(255,255,255,.65); }
.footer-grid section { display: flex; flex-direction: column; align-items: flex-start; }
.footer-grid a { color: rgba(255,255,255,.76); margin: 4px 0; }
.footer-bottom { width: var(--content); margin: 0 auto; padding: 18px 0 24px; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 16px; color: rgba(255,255,255,.6); font-size: 13px; }
.footer-bottom a { color: inherit; }
.back-top { position: fixed; right: 20px; bottom: 20px; z-index: 50; border: 1px solid var(--line); background: var(--paper); color: var(--text); border-radius: 999px; padding: 10px 14px; box-shadow: var(--shadow); }
@media (max-width: 1100px) {
  .primary-nav { position: absolute; left: 20px; right: 20px; top: 72px; display: none; flex-direction: column; align-items: stretch; padding: 12px; background: var(--paper); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
  .primary-nav.is-open { display: flex; }
  .menu-toggle { display: inline-flex; margin-left: auto; }
  .search-open { margin-left: 0; }
  .brand { min-width: auto; }
  .hero { min-height: auto; grid-template-columns: 1fr 1fr; gap: 34px; }
  .route-card { grid-template-columns: 140px 1fr; }
}
@media (max-width: 900px) {
  :root { --content: min(100% - 32px, 760px); }
  .section-shell { padding: 56px 0; }
  .hero,.page-hero,.two-column,.final-cta,.not-found { grid-template-columns: 1fr; }
  .hero { padding-top: 44px; }
  .hero-media { max-width: 620px; }
  .hero-media img { aspect-ratio: 16/10; border-radius: 28px 28px 80px 28px; }
  .route-grid,.article-catalog { grid-template-columns: 1fr; }
  .feature-strip,.trust-band { grid-template-columns: 1fr; padding-top: 56px; padding-bottom: 56px; }
  .feature-media img { min-height: 0; max-height: 480px; }
  .topic-grid { grid-template-columns: 1fr 1fr; }
  .topic-row { grid-template-columns: 240px 1fr; }
  .compare-grid { grid-template-columns: 1fr; }
  .guide-catalog article { grid-template-columns: 54px 180px 1fr; }
}
@media (max-width: 700px) {
  :root { --content: min(100% - 24px, 620px); }
  .header-shell { min-height: 66px; gap: 8px; }
  .brand img { width: 42px; height: 42px; }
  .brand small { display: none; }
  .brand strong { font-size: 15px; }
  .search-open { padding: 8px 10px; font-size: 13px; }
  .menu-toggle { padding: 8px 10px; font-size: 13px; }
  .hero-copy h1 { font-size: clamp(36px,12vw,54px); }
  .section-shell { padding: 46px 0; }
  .split-text,.editorial-note { grid-template-columns: 1fr; gap: 12px; }
  .route-card { grid-template-columns: 1fr; }
  .route-card img { height: 190px; }
  .topic-grid,.mini-guide-grid,.info-grid,.warning-list,.number-steps { grid-template-columns: 1fr; }
  .topic-row { grid-template-columns: 1fr; }
  .topic-row img { min-height: 0; aspect-ratio: 16/9; }
  .guide-catalog article { grid-template-columns: 52px 1fr; }
  .guide-catalog img { grid-column: 1 / -1; aspect-ratio: 16/9; }
  .footer-grid { grid-template-columns: 1fr; gap: 22px; }
  .page-heading { margin-left: auto; }
}
@media (max-width: 480px) {
  :root { --content: calc(100% - 20px); }
  .section-shell { padding: 40px 0; }
  .hero-actions,.search-row,.inline-search > div { flex-direction: column; align-items: stretch; }
  .hero-note { flex-direction: column; }
  .editor-item { grid-template-columns: 46px 1fr; gap: 10px; }
  .index-no { font-size: 24px; }
  .page-hero h1,.page-heading h1 { font-size: 34px; }
  .article-header h1,.guide-page > header h1,.not-found h1 { font-size: 36px; }
  .article-body { font-size: 17px; }
  .article-body h2 { font-size: 26px; }
  .guide-steps li { grid-template-columns: 48px 1fr; }
  .footer-bottom { flex-direction: column; }
}