:root {
    --primary: #6F5AE8;
    --primary-soft: #9A8CF2;
    --ink: #242433;
    --text: #30303A;
    --muted: #70707D;
    --bg: #F8F8FC;
    --surface: #FFFFFF;
    --tint: #F0EEFA;
    --accent: #F29A4A;
    --line: #E3E1EC;
    --line-dark: rgba(255,255,255,.14);
    --radius: 22px;
    --radius-sm: 14px;
    --shadow: 0 18px 50px rgba(36,36,51,.08);
    --container: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; color: var(--text); background: var(--bg); line-height: 1.72; -webkit-font-smoothing: antialiased; }
body.modal-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { color: inherit; }
.container { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; }
.narrow-container { width: min(calc(100% - 40px), 860px); margin: 0 auto; }
.sr-only { position: absolute; 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: 14px; top: 14px; z-index: 200; padding: 10px 14px; border-radius: 10px; background: var(--ink); color: #fff; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; top: 0; z-index: 100; border-bottom: 1px solid rgba(227,225,236,.82); background: rgba(248,248,252,.94); backdrop-filter: blur(16px); }
.header-row { min-height: 76px; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand img { width: 42px; height: 42px; object-fit: contain; }
.brand span { display: flex; flex-direction: column; line-height: 1.2; }
.brand strong { color: var(--ink); font-size: 18px; letter-spacing: .01em; }
.brand small { margin-top: 4px; color: var(--muted); font-size: 11px; }
.primary-nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.primary-nav a { padding: 9px 11px; border-radius: 10px; color: #50505D; font-size: 14px; transition: .2s ease; }
.primary-nav a:hover, .primary-nav a[aria-current="page"] { background: var(--tint); color: var(--primary); }
.search-open { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--line); background: #fff; padding: 9px 13px; border-radius: 12px; cursor: pointer; }
.search-icon { width: 14px; height: 14px; border: 2px solid currentColor; border-radius: 50%; position: relative; }
.search-icon::after { content: ""; position: absolute; width: 6px; height: 2px; background: currentColor; right: -5px; bottom: -2px; transform: rotate(45deg); border-radius: 2px; }
.menu-toggle { display: none; margin-left: auto; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 11px; background: #fff; align-items: center; justify-content: center; flex-direction: column; gap: 4px; cursor: pointer; }
.menu-toggle > span:not(.sr-only) { width: 18px; height: 2px; border-radius: 1px; background: var(--ink); }
.search-modal[hidden] { display: none !important; }
.search-modal { position: fixed; inset: 0; z-index: 180; display: grid; place-items: start center; padding: 12vh 20px 40px; }
.search-backdrop { position: absolute; inset: 0; background: rgba(24,24,34,.64); }
.search-dialog { position: relative; width: min(680px, 100%); padding: 34px; border-radius: 24px; background: #fff; box-shadow: 0 24px 70px rgba(0,0,0,.22); }
.search-dialog h2 { margin: 3px 0 8px; font-size: clamp(26px, 4vw, 36px); color: var(--ink); }
.search-dialog p { margin: 0 0 20px; color: var(--muted); }
.search-close { position: absolute; top: 16px; right: 18px; width: 40px; height: 40px; border: 0; border-radius: 50%; background: var(--tint); cursor: pointer; font-size: 24px; line-height: 1; }
.search-form { display: flex; gap: 10px; }
.search-form input { min-width: 0; flex: 1; height: 48px; border: 1px solid #D7D4E4; border-radius: 12px; padding: 0 14px; background: #fff; outline: none; }
.search-form input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(111,90,232,.12); }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 17px; border-radius: 12px; border: 1px solid transparent; font-weight: 700; line-height: 1.25; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 10px 24px rgba(111,90,232,.18); }
.btn-primary:hover { background: #624DDA; }
.btn-secondary { border-color: #D8D4EB; background: #fff; color: var(--ink); }
.btn-secondary:hover { border-color: var(--primary-soft); }
.btn-accent { background: var(--accent); color: #2C241B; box-shadow: 0 10px 24px rgba(242,154,74,.2); }
.btn-light { background: #fff; color: var(--ink); }
.text-link { color: var(--primary); font-weight: 700; }
.text-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.eyebrow { margin: 0 0 10px; color: var(--primary); font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; }
.section-dark .eyebrow { color: #BEB4FF; }
.hero { padding: 78px 0 58px; background: radial-gradient(circle at 78% 10%, rgba(154,140,242,.2), transparent 30%), var(--bg); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 58px; align-items: center; }
.hero-copy h1, .page-hero h1 { margin: 0; color: var(--ink); font-size: clamp(38px, 5.2vw, 64px); line-height: 1.08; letter-spacing: -.035em; }
.hero-lead { margin: 22px 0 0; max-width: 760px; color: #555562; font-size: 18px; line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 28px; }
.hero-text-link { margin-left: 4px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 28px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: 14px; }
.hero-points li::before { content: "•"; color: var(--accent); margin-right: 7px; }
.hero-media { margin: 0; }
.hero-media img, .page-hero-grid > img { border-radius: 28px; box-shadow: var(--shadow); background: var(--tint); object-fit: cover; width: 100%; }
.hero-media figcaption { margin-top: 11px; color: var(--muted); font-size: 13px; }
.section { padding: 84px 0; }
.section-plain { background: #fff; }
.section-tint { background: var(--tint); }
.section-dark { background: var(--ink); color: #EEEFF6; }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading h2, .content-stack h2, .editorial-lead h2, .info-band-copy h2, .next-grid h2, .reading-main h2, .process-copy h2, .troubleshooting-grid h2, .comparison-layout h2, .privacy-list h2, .safety-grid h2, .contact-layout h2 { margin: 0 0 14px; color: var(--ink); font-size: clamp(28px, 4vw, 42px); line-height: 1.2; letter-spacing: -.025em; }
.section-heading p, .content-stack p, .editorial-lead p, .info-band-copy p, .next-grid p, .reading-main p, .process-copy p, .comparison-layout p { color: var(--muted); }
.section-dark h2, .section-dark h3, .section-dark p { color: inherit; }
.split-heading { max-width: none; display: grid; grid-template-columns: 1fr minmax(300px, 480px); gap: 50px; align-items: end; }
.split-heading > p { margin: 0; }
.centered-heading { margin-left: auto; margin-right: auto; text-align: center; }
.light-heading { color: #fff; }
.light-heading h2 { color: #fff; }
.light-heading p { color: #BFC0CD; }
.entry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.entry-card { min-height: 260px; display: flex; flex-direction: column; padding: 27px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.entry-card h3 { margin: 0 0 12px; color: var(--ink); font-size: 22px; line-height: 1.35; }
.entry-card p { margin: 0 0 24px; color: var(--muted); }
.entry-card .text-link { margin-top: auto; }
.feature-split, .reverse-split { display: grid; grid-template-columns: .92fr 1.08fr; gap: 58px; align-items: center; }
.reverse-split { grid-template-columns: 1.08fr .92fr; }
.media-card img { width: 100%; border-radius: 26px; box-shadow: var(--shadow); background: #fff; }
.accent-media { position: relative; }
.accent-media::after { content: ""; position: absolute; inset: auto -14px -14px auto; width: 42%; height: 42%; border-radius: 24px; background: rgba(242,154,74,.14); z-index: -1; }
.content-stack > *:last-child { margin-bottom: 0; }
.inline-notes { display: grid; gap: 10px; margin: 24px 0; }
.inline-notes > div { padding: 14px 16px; border-left: 3px solid var(--primary-soft); background: rgba(255,255,255,.74); border-radius: 0 12px 12px 0; }
.inline-notes strong, .inline-notes span { display: block; }
.inline-notes span { margin-top: 3px; color: var(--muted); font-size: 14px; }
.number-list { margin: 24px 0 28px; padding: 0; list-style: none; display: grid; gap: 14px; }
.number-list li { display: grid; grid-template-columns: 44px 1fr; gap: 14px; align-items: start; padding: 16px 0; border-bottom: 1px solid var(--line); }
.number-list li > span { color: var(--primary); font-weight: 800; }
.number-list strong { color: var(--ink); font-size: 17px; }
.number-list p { margin: 4px 0 0; color: var(--muted); }
.wide-list { grid-template-columns: repeat(2, 1fr); gap: 0 28px; }
.wide-list li { min-height: 150px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feature-item { position: relative; padding: 26px; border-radius: var(--radius); background: rgba(255,255,255,.075); border: 1px solid rgba(255,255,255,.12); }
.section:not(.section-dark) .feature-item { background: #fff; border-color: var(--line); }
.feature-mark { display: block; width: 34px; height: 6px; border-radius: 10px; margin-bottom: 20px; background: var(--accent); }
.feature-item h3 { margin: 0 0 10px; font-size: 20px; }
.feature-item p { margin: 0; color: #C9CAD4; }
.section:not(.section-dark) .feature-item p { color: var(--muted); }
.feature-item .muted { margin-top: 14px; font-size: 14px; color: #AEB0C0; }
.section-actions { margin-top: 28px; text-align: center; }
.topic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.topic-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.topic-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; background: var(--tint); }
.topic-card-body { padding: 24px; }
.topic-card h3 { margin: 0 0 10px; color: var(--ink); font-size: 21px; line-height: 1.4; }
.topic-card p { margin: 0 0 18px; color: var(--muted); }
.editorial-layout { display: grid; grid-template-columns: .92fr 1.08fr; gap: 58px; align-items: start; }
.editorial-lead img { margin-top: 26px; border-radius: 22px; background: #fff; }
.editorial-list { display: grid; gap: 0; }
.editorial-list article { display: grid; grid-template-columns: 52px 1fr; gap: 16px; padding: 21px 0; border-bottom: 1px solid rgba(112,112,125,.18); }
.index-no { color: var(--primary); font-weight: 800; }
.editorial-list h3 { margin: 0 0 5px; color: var(--ink); font-size: 20px; }
.editorial-list p { margin: 0; color: var(--muted); }
.editorial-list .btn { margin-top: 24px; justify-self: start; }
.info-band { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 52px; align-items: center; padding: 34px; border-radius: 28px; background: #fff; border: 1px solid var(--line); }
.info-band-media img { width: 100%; border-radius: 20px; }
.link-cluster { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 20px; }
.link-cluster a { color: var(--primary); font-weight: 700; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item h3 { margin: 0; }
.faq-toggle { width: 100%; display: flex; justify-content: space-between; gap: 18px; align-items: center; padding: 21px 4px; border: 0; background: transparent; text-align: left; cursor: pointer; color: var(--ink); font-weight: 750; }
.faq-symbol { flex: 0 0 30px; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; background: var(--tint); color: var(--primary); transition: transform .2s ease; }
.faq-toggle[aria-expanded="true"] .faq-symbol { transform: rotate(45deg); }
.faq-answer { padding: 0 48px 22px 4px; color: var(--muted); }
.faq-answer p { margin: 0; }
.about-strip { display: grid; grid-template-columns: 1.2fr .8fr; gap: 50px; align-items: center; }
.about-strip img { border-radius: 22px; }
.final-cta { padding-top: 40px; }
.final-cta-inner { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; padding: 38px; border-radius: 28px; background: var(--ink); color: #fff; }
.final-cta-inner h2 { margin: 0 0 8px; font-size: 34px; }
.final-cta-inner p { margin: 0; color: #C5C6D0; }
.final-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.page-hero { padding: 46px 0 64px; background: radial-gradient(circle at 80% 15%, rgba(154,140,242,.22), transparent 32%), var(--bg); }
.compact-hero .page-hero-grid, .download-hero .page-hero-grid, .guide-hero .page-hero-grid, .help-hero .page-hero-grid { margin-top: 28px; }
.page-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 52px; align-items: center; }
.page-hero h1 { font-size: clamp(34px, 4.6vw, 54px); }
.breadcrumbs { margin-bottom: 18px; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; color: var(--muted); font-size: 13px; }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: 8px; color: #B3B0BD; }
.breadcrumbs a:hover { color: var(--primary); }
.two-column-reading { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(260px, .65fr); gap: 58px; align-items: start; }
.reading-main h3 { margin: 28px 0 8px; color: var(--ink); font-size: 21px; }
.reading-main p { font-size: 16px; }
.reading-aside { position: sticky; top: 104px; padding: 25px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.reading-aside h2 { margin: 0 0 14px; color: var(--ink); font-size: 21px; }
.check-list { margin: 0 0 20px; padding: 0; list-style: none; }
.check-list li { position: relative; padding: 8px 0 8px 22px; color: var(--muted); }
.check-list li::before { content: ""; position: absolute; left: 0; top: 16px; width: 8px; height: 8px; border-radius: 50%; background: var(--primary-soft); }
.callout { margin-top: 28px; padding: 22px; border-radius: 17px; background: var(--tint); }
.callout strong { color: var(--ink); }
.callout p { margin-bottom: 0; }
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.scenario-grid article { padding: 25px; border-radius: 18px; background: #fff; border: 1px solid rgba(111,90,232,.1); }
.scenario-grid h3 { margin: 0 0 9px; color: var(--ink); font-size: 20px; }
.scenario-grid p { margin: 0; color: var(--muted); }
.process-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 60px; }
.step-timeline { margin: 0; padding: 0; list-style: none; }
.step-timeline li { display: grid; grid-template-columns: 48px 1fr; gap: 18px; padding: 0 0 30px; position: relative; }
.step-timeline li:not(:last-child)::before { content: ""; position: absolute; left: 23px; top: 46px; bottom: 0; width: 1px; background: var(--line); }
.step-timeline li > span { width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; background: var(--tint); color: var(--primary); font-weight: 800; }
.step-timeline h3 { margin: 2px 0 5px; color: var(--ink); }
.step-timeline p { margin: 0; color: var(--muted); }
.troubleshooting-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 50px; align-items: start; }
.dark-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.dark-list article { padding: 22px; border: 1px solid var(--line-dark); border-radius: 18px; background: rgba(255,255,255,.06); }
.dark-list span { color: #BEB4FF; font-weight: 800; font-size: 12px; }
.dark-list h3 { margin: 8px 0 6px; }
.dark-list p { margin: 0; color: #C3C4CF; }
.four-col { grid-template-columns: repeat(4, 1fr); }
.next-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: start; }
.next-links { display: grid; border-top: 1px solid var(--line); }
.section-dark .next-links { border-color: var(--line-dark); }
.next-links a { padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--primary); font-weight: 750; }
.section-dark .next-links a { border-color: var(--line-dark); color: #C7C0FF; }
.comparison-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 55px; align-items: start; }
.comparison-table { background: #fff; border: 1px solid var(--line); border-radius: 22px; overflow: hidden; }
.comparison-table > div { display: grid; grid-template-columns: 120px 1fr; gap: 20px; padding: 20px 22px; border-bottom: 1px solid var(--line); }
.comparison-table > div:last-child { border-bottom: 0; }
.comparison-table strong { color: var(--ink); }
.comparison-table span { color: var(--muted); }
.guide-list { border-top: 1px solid var(--line); }
.guide-list article { display: grid; grid-template-columns: 72px 1fr; gap: 22px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.guide-number { color: var(--primary); font-size: 30px; font-weight: 800; }
.guide-content h3 { margin: 0 0 8px; color: var(--ink); font-size: 25px; }
.guide-content > p { margin: 0 0 14px; color: var(--muted); }
.guide-content ol { margin: 0; padding-left: 20px; }
.guide-content li { padding: 5px 0; }
.help-grid { grid-template-columns: repeat(2, 1fr); }
.light-troubleshooting { color: var(--text); }
.light-troubleshooting .dark-list article { background: #fff; border-color: rgba(111,90,232,.12); }
.light-troubleshooting .dark-list h3 { color: var(--ink); }
.light-troubleshooting .dark-list p { color: var(--muted); }
.safety-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.safety-grid article { padding: 28px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.safety-grid article > span { color: var(--primary); font-weight: 800; font-size: 12px; }
.safety-grid h2 { margin-top: 10px; font-size: 25px; }
.safety-grid p { margin: 0; color: var(--muted); }
.privacy-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.privacy-list article { padding: 26px; border-left: 4px solid var(--primary-soft); border-radius: 0 18px 18px 0; background: #fff; }
.privacy-list h2 { font-size: 23px; }
.privacy-list p { margin: 0; color: var(--muted); }
.plain-steps { margin: 18px 0 22px; padding-left: 22px; }
.plain-steps li { padding: 5px 0; }
.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.values-grid article { padding: 24px; border-radius: 18px; background: #fff; border: 1px solid rgba(111,90,232,.1); }
.values-grid span { color: var(--primary); font-weight: 800; }
.values-grid h2 { margin: 9px 0 7px; color: var(--ink); font-size: 21px; }
.values-grid p { margin: 0; color: var(--muted); }
.contact-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 55px; align-items: start; }
.privacy-warning { padding: 24px; border-radius: 22px; background: var(--tint); }
.privacy-warning img { border-radius: 16px; margin-bottom: 22px; }
.privacy-warning h2 { font-size: 23px; }
.privacy-warning ul { margin: 0; padding-left: 20px; color: var(--muted); }
.search-page-hero { padding-bottom: 44px; }
.search-page-hero h1 { max-width: 780px; }
.search-page-form { width: min(680px, 100%); margin-top: 24px; }
.search-results { min-height: 320px; }
.result-list { display: grid; gap: 14px; }
.result-list article { padding: 22px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.result-list h3 { margin: 0 0 7px; color: var(--ink); font-size: 21px; }
.result-list h3 a:hover { color: var(--primary); }
.result-list p { margin: 0 0 12px; color: var(--muted); }
.empty-state { max-width: 760px; margin: 0 auto; text-align: center; padding: 20px; }
.empty-state img { margin: 0 auto 24px; border-radius: 20px; }
.empty-state h1, .empty-state h2 { color: var(--ink); }
.empty-state p { color: var(--muted); }
.error-code { margin: 0; color: var(--primary) !important; font-size: 82px; line-height: 1; font-weight: 900; }
.site-footer { margin-top: 80px; background: #1E1E2B; color: #D7D8E2; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 36px; padding: 56px 0 44px; }
.footer-brand-link strong { color: #fff; }
.footer-brand p { max-width: 380px; color: #AEB0BE; font-size: 14px; }
.footer-column h2 { margin: 0 0 14px; color: #fff; font-size: 15px; }
.footer-column ul { margin: 0; padding: 0; list-style: none; }
.footer-column li { margin: 8px 0; }
.footer-column a { color: #BFC1CC; font-size: 14px; }
.footer-column a:hover, .footer-bottom a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 18px 0 26px; border-top: 1px solid rgba(255,255,255,.1); color: #9496A3; font-size: 13px; }
.footer-bottom p { margin: 0; }
.back-top { position: fixed; right: 22px; bottom: 22px; z-index: 80; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 50%; background: #fff; box-shadow: var(--shadow); cursor: pointer; opacity: 0; visibility: hidden; transform: translateY(8px); transition: .2s ease; }
.back-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
@media (max-width: 1100px) {
    .primary-nav { gap: 0; }
    .primary-nav a { padding: 8px 8px; font-size: 13px; }
    .hero-grid, .page-hero-grid { gap: 36px; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .four-col { grid-template-columns: repeat(2, 1fr); }
    .values-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 920px) {
    .header-row { min-height: 68px; }
    .menu-toggle { display: flex; }
    .primary-nav { position: absolute; left: 20px; right: 20px; top: calc(100% + 8px); display: none; flex-direction: column; align-items: stretch; padding: 10px; border: 1px solid var(--line); border-radius: 16px; background: #fff; box-shadow: var(--shadow); }
    .primary-nav.is-open { display: flex; }
    .primary-nav a { padding: 11px 12px; font-size: 14px; }
    .search-open span:last-child { display: none; }
    .hero { padding-top: 52px; }
    .hero-grid, .page-hero-grid, .feature-split, .reverse-split, .editorial-layout, .info-band, .about-strip, .process-layout, .troubleshooting-grid, .comparison-layout, .two-column-reading, .contact-layout { grid-template-columns: 1fr; }
    .hero-media, .page-hero-grid > img { max-width: 720px; }
    .reading-aside { position: static; }
    .topic-grid, .scenario-grid { grid-template-columns: repeat(2, 1fr); }
    .entry-grid { grid-template-columns: 1fr; }
    .entry-card { min-height: auto; }
    .help-grid { grid-template-columns: repeat(2, 1fr); }
    .final-cta-inner, .next-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 700px) {
    .container, .narrow-container { width: min(calc(100% - 28px), var(--container)); }
    .brand small { display: none; }
    .search-dialog { padding: 28px 20px; }
    .search-form { flex-direction: column; }
    .section { padding: 62px 0; }
    .hero-copy h1, .page-hero h1 { font-size: 37px; }
    .hero-lead { font-size: 16px; }
    .split-heading { grid-template-columns: 1fr; gap: 10px; }
    .feature-grid, .topic-grid, .scenario-grid, .safety-grid, .privacy-list, .values-grid, .dark-list, .four-col, .wide-list { grid-template-columns: 1fr; }
    .info-band { padding: 22px; }
    .guide-list article { grid-template-columns: 48px 1fr; gap: 14px; }
    .guide-number { font-size: 23px; }
    .help-grid { grid-template-columns: 1fr; }
    .comparison-table > div { grid-template-columns: 1fr; gap: 4px; }
    .final-actions { display: grid; grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; }
    .site-footer { margin-top: 50px; }
}
@media (max-width: 430px) {
    .header-row { gap: 10px; }
    .brand strong { font-size: 16px; }
    .brand img { width: 38px; height: 38px; }
    .hero-actions { align-items: stretch; }
    .hero-actions .btn { width: 100%; }
    .hero-text-link { margin: 4px 0 0; }
    .hero-points { display: grid; }
    .page-hero { padding-top: 28px; }
    .hero-copy h1, .page-hero h1 { font-size: 34px; }
    .section-heading h2, .content-stack h2, .editorial-lead h2, .info-band-copy h2, .next-grid h2, .reading-main h2, .process-copy h2, .troubleshooting-grid h2, .comparison-layout h2 { font-size: 29px; }
    .guide-list article { grid-template-columns: 1fr; }
    .error-code { font-size: 64px; }
}
.faq-teaser-link { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 21px 4px; color: var(--ink); font-weight: 750; }
.faq-teaser-link span { color: var(--primary); }
.faq-teaser-link:hover { color: var(--primary); }