:root {
    --primary: #6F5AE8;
    --primary-soft: #9A8CF2;
    --deep: #242433;
    --bg: #F8F8FC;
    --soft: #F0EEFA;
    --text: #30303A;
    --muted: #70707D;
    --accent: #F29A4A;
    --line: #dedce9;
    --white: #ffffff;
    --shadow: 0 20px 50px rgba(36, 36, 51, .10);
    --radius-lg: 28px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --shell: min(1180px, calc(100% - 40px));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--bg); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif; line-height: 1.72; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { cursor: pointer; }
code { background: #ebe8f7; border-radius: 6px; padding: .12rem .35rem; font-size: .92em; }
.shell { width: var(--shell); margin-inline: 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: 10px; z-index: 999; transform: translateY(-160%); background: var(--deep); color: #fff; padding: 10px 14px; border-radius: 8px; transition: .2s; }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; top: 0; z-index: 70; background: rgba(248,248,252,.94); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(222,220,233,.72); }
.header-inner { min-height: 76px; display: flex; align-items: center; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 11px; min-width: 205px; }
.brand img { width: 42px; height: 42px; object-fit: contain; border-radius: 12px; }
.brand span { display: grid; line-height: 1.25; }
.brand strong { font-size: 1rem; letter-spacing: .02em; }
.brand small { color: var(--muted); font-size: .72rem; margin-top: 3px; }
.main-nav { display: flex; align-items: center; gap: 5px; margin-left: auto; }
.main-nav a { padding: 9px 10px; border-radius: 9px; color: #454553; font-size: .93rem; white-space: nowrap; }
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--primary); background: #ece9fb; }
.search-open { border: 1px solid var(--line); background: var(--white); color: var(--deep); padding: 9px 14px; border-radius: 999px; white-space: nowrap; }
.search-open:hover { border-color: var(--primary); color: var(--primary); }
.menu-toggle { display: none; margin-left: auto; border: 0; background: transparent; padding: 8px; }
.menu-toggle span:not(.sr-only) { width: 22px; height: 2px; background: var(--deep); display: block; margin: 4px 0; }
.hero { padding: 78px 0 62px; background: radial-gradient(circle at 82% 18%, rgba(154,140,242,.25), transparent 34%), linear-gradient(180deg, #fbfaff 0%, #f8f8fc 100%); }
.hero-grid, .page-hero-grid { display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(360px, .94fr); align-items: center; gap: 68px; }
.eyebrow { margin: 0 0 12px; color: var(--primary); font-weight: 760; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow.light { color: #cbc4ff; }
h1, h2, h3 { color: var(--deep); line-height: 1.22; margin-top: 0; }
h1 { font-size: clamp(2.35rem, 5vw, 4.6rem); letter-spacing: -.045em; margin-bottom: 20px; }
h2 { font-size: clamp(1.65rem, 3vw, 2.65rem); letter-spacing: -.026em; margin-bottom: 14px; }
h3 { font-size: 1.16rem; margin-bottom: 9px; }
p { margin-top: 0; }
.hero-lead { font-size: 1.08rem; color: #525260; max-width: 720px; margin-bottom: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 17px; border-radius: 11px; font-weight: 700; border: 1px solid transparent; transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.button:hover { transform: translateY(-1px); }
.button.primary { background: var(--primary); color: #fff; box-shadow: 0 11px 24px rgba(111,90,232,.22); }
.button.accent { background: var(--accent); color: #2d231a; box-shadow: 0 11px 24px rgba(242,154,74,.22); }
.button.ghost { border-color: #cfcbe4; background: #fff; color: var(--deep); }
.button.dark-ghost { border-color: rgba(255,255,255,.34); color: #fff; background: transparent; }
.hero-media { margin: 0; background: #fff; padding: 13px; border-radius: 30px; box-shadow: var(--shadow); transform: rotate(1.2deg); }
.hero-media img { border-radius: 22px; width: 100%; aspect-ratio: 1.32; object-fit: cover; }
.hero-media figcaption { color: var(--muted); font-size: .83rem; padding: 12px 8px 3px; }
.hero-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 32px 0 0; }
.hero-facts div { padding: 15px 14px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255,255,255,.68); }
.hero-facts dt { color: var(--muted); font-size: .73rem; }
.hero-facts dd { margin: 4px 0 0; font-size: .86rem; font-weight: 650; }
.section { padding-top: 84px; padding-bottom: 84px; }
.section-heading { max-width: 560px; }
.section-heading.wide { max-width: 820px; margin-bottom: 34px; }
.section-heading > p:last-child { color: var(--muted); }
.soft-section { background: var(--soft); }
.core-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.core-card { background: #fff; border-radius: var(--radius-md); overflow: hidden; border: 1px solid #e3e0ef; min-width: 0; }
.core-card img { width: 100%; aspect-ratio: 1.64; object-fit: cover; }
.core-card-body { padding: 22px; }
.core-card-body p { color: var(--muted); min-height: 72px; }
.text-link, .core-card a, .article-card a, .step-item a, .note-card a { color: var(--primary); font-weight: 730; }
.split-layout { display: grid; grid-template-columns: .78fr 1.22fr; gap: 70px; align-items: start; }
.sticky-heading { position: sticky; top: 110px; }
.side-illustration { margin-top: 26px; border-radius: 20px; box-shadow: 0 14px 34px rgba(64,55,110,.10); }
.step-list { border-top: 1px solid #d6d1e8; }
.step-item { display: grid; grid-template-columns: 58px 1fr; gap: 18px; padding: 28px 0; border-bottom: 1px solid #d6d1e8; }
.step-num { color: var(--primary); font-weight: 820; font-size: .9rem; }
.kicker { margin: 0 0 5px; color: var(--muted); font-size: .8rem; }
.step-item p { color: #5c5b68; }
.editorial-band { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.band-copy p { color: var(--muted); }
.band-list { display: grid; border-top: 1px solid var(--line); }
.band-list a { display: grid; gap: 4px; padding: 18px 4px; border-bottom: 1px solid var(--line); }
.band-list a strong { color: var(--deep); }
.band-list a span { color: var(--muted); font-size: .9rem; }
.band-list a:hover strong { color: var(--primary); }
.article-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.article-grid.full { grid-template-columns: repeat(3, 1fr); }
.article-card { background: #fff; border: 1px solid #e2dfec; border-radius: 17px; overflow: hidden; }
.article-card img { width: 100%; aspect-ratio: 1.58; object-fit: cover; }
.article-card > div { padding: 18px; }
.article-card p { color: var(--muted); font-size: .93rem; }
.pill { display: inline-flex; align-items: center; padding: 4px 9px; border-radius: 999px; background: #ebe8fb; color: var(--primary); font-weight: 760; font-size: .72rem; margin-bottom: 10px; }
.section-action { display: flex; justify-content: center; margin-top: 34px; }
.contrast-section { background: var(--deep); color: #e9e7f5; }
.contrast-section h2 { color: #fff; }
.contrast-section p { color: #c9c7d5; }
.contrast-grid { display: grid; grid-template-columns: 1fr .9fr; gap: 70px; align-items: center; }
.contrast-grid img { border-radius: 24px; }
.faq-preview-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 44px; }
.faq-preview-grid article { padding: 22px 0; border-top: 1px solid var(--line); }
.faq-preview-grid p { color: var(--muted); }
.trust-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; }
.trust-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.trust-points div { background: rgba(255,255,255,.66); border: 1px solid #ddd8ed; border-radius: 15px; padding: 18px; }
.trust-points span { display: block; color: var(--muted); font-size: .9rem; margin-top: 6px; }
.page-hero { padding: 64px 0 58px; background: linear-gradient(180deg, #f3f0fd 0%, #f8f8fc 100%); }
.page-hero.compact h1 { font-size: clamp(2.15rem, 4.4vw, 3.85rem); }
.page-hero img { border-radius: 24px; box-shadow: var(--shadow); width: 100%; aspect-ratio: 1.42; object-fit: cover; }
.breadcrumbs { margin-bottom: 28px; }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0; font-size: .82rem; color: var(--muted); }
.breadcrumbs li:not(:last-child)::after { content: '/'; margin-left: 8px; color: #aaa5bc; }
.breadcrumbs a:hover { color: var(--primary); }
.info-columns, .verify-grid, .principle-grid, .contact-grid, .compat-grid, .safety-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.info-columns article, .verify-grid article, .principle-grid article, .contact-grid article, .compat-grid article, .safety-grid article { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 22px; }
.info-columns article > span { color: var(--primary); font-weight: 840; }
.info-columns p, .verify-grid p, .principle-grid p, .contact-grid p, .compat-grid p, .safety-grid p { color: var(--muted); }
.timeline { display: grid; gap: 18px; }
.timeline article { position: relative; padding: 4px 0 22px 28px; border-left: 2px solid #c8c1ef; }
.timeline article::before { content: ''; width: 12px; height: 12px; border-radius: 50%; background: var(--primary); position: absolute; left: -7px; top: 5px; }
.timeline p { color: var(--muted); }
.reading-grid, .comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.check-list, .plain-list, .signal-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.check-list li, .plain-list li, .signal-list li { position: relative; padding-left: 28px; }
.check-list li::before { content: '✓'; position: absolute; left: 0; color: var(--primary); font-weight: 850; }
.plain-list li::before { content: '—'; position: absolute; left: 0; color: var(--muted); }
.signal-list { grid-template-columns: repeat(2, 1fr); gap: 14px; }
.signal-list li { background: #fff; border: 1px solid #ddd8ec; border-radius: 14px; padding: 16px 16px 16px 42px; }
.signal-list li::before { content: '!'; position: absolute; left: 16px; top: 15px; width: 18px; height: 18px; display: grid; place-items: center; border-radius: 50%; background: #fff1e2; color: #a95d1a; font-weight: 850; }
.download-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.download-steps article { padding: 23px; background: #fff; border: 1px solid var(--line); border-radius: 15px; }
.download-steps span { color: var(--accent); font-weight: 850; }
.download-steps p { color: var(--muted); }
.note-card { background: var(--deep); color: #e8e6f2; border-radius: 20px; padding: 26px; }
.note-card h3 { color: #fff; }
.note-card p, .note-card li { color: #cbc9d6; }
.note-card a { color: #c9c0ff; }
.process-band { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: #fff; }
.process-band div { padding: 20px; border-right: 1px solid var(--line); }
.process-band div:last-child { border-right: 0; }
.process-band strong, .process-band span { display: block; }
.process-band span { color: var(--muted); font-size: .9rem; margin-top: 7px; }
.process-band.vertical { grid-template-columns: repeat(3, 1fr); }
.process-band.vertical div:nth-child(3) { border-right: 0; }
.process-band.vertical div:nth-child(n+4) { border-top: 1px solid var(--line); }
.order-strip { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px; border-radius: 14px; background: #fff; border: 1px solid var(--line); overflow-x: auto; }
.order-strip span { white-space: nowrap; font-weight: 680; }
.order-strip b { color: var(--primary); }
.feature-block { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; }
.feature-list { display: grid; gap: 12px; }
.feature-list article { display: grid; grid-template-columns: 24px 1fr; gap: 10px; padding: 16px; background: rgba(255,255,255,.76); border: 1px solid #ddd9ec; border-radius: 13px; }
.feature-list article span { color: var(--primary); font-weight: 850; }
.feature-list article p { margin: 0; }
.topic-index { display: grid; grid-template-columns: .82fr 1.18fr; gap: 56px; }
.link-list { display: grid; border-top: 1px solid var(--line); }
.link-row { display: flex; justify-content: space-between; align-items: center; gap: 22px; padding: 18px 2px; border-bottom: 1px solid var(--line); }
.link-row span:first-child { display: grid; gap: 5px; }
.link-row small { color: var(--muted); }
.link-row span:last-child { color: var(--primary); font-size: 1.2rem; }
.link-row:hover strong { color: var(--primary); }
.related-section { width: var(--shell); margin-inline: auto; }
.article-page { padding-bottom: 70px; }
.article-header { padding-top: 54px; }
.article-header h1 { max-width: 900px; font-size: clamp(2.2rem, 4.7vw, 4.15rem); }
.article-intro { max-width: 800px; color: #5b5a68; font-size: 1.08rem; }
.article-header figure { margin: 34px 0 0; }
.article-header figure img { width: 100%; max-height: 560px; object-fit: cover; border-radius: 24px; }
.article-header figcaption { color: var(--muted); font-size: .83rem; margin-top: 8px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 70px; padding-top: 52px; }
.article-body { max-width: 760px; }
.article-body section { margin-bottom: 42px; }
.article-body p, .article-body li { color: #51505d; font-size: 1.02rem; }
.article-summary { background: #eeebfb; border-radius: 18px; padding: 25px; }
.article-aside { align-self: start; position: sticky; top: 108px; display: grid; border-top: 1px solid var(--line); }
.article-aside h2 { font-size: 1.12rem; padding-top: 18px; }
.article-aside a { display: grid; gap: 4px; padding: 15px 0; border-bottom: 1px solid var(--line); }
.article-aside span { color: var(--muted); font-size: .83rem; }
.article-aside a:hover strong { color: var(--primary); }
.faq-page { max-width: 900px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); scroll-margin-top: 100px; }
.faq-question { width: 100%; border: 0; background: transparent; display: flex; justify-content: space-between; gap: 20px; text-align: left; padding: 22px 0; color: var(--deep); font-weight: 760; }
.faq-question b { color: var(--primary); font-size: 1.3rem; }
.faq-answer { display: grid; grid-template-rows: 1fr; }
.js .faq-answer { grid-template-rows: 0fr; transition: grid-template-rows .24s ease; }
.js .faq-answer > p { overflow: hidden; }
.js .faq-item.is-open .faq-answer { grid-template-rows: 1fr; }
.faq-answer p { color: var(--muted); margin: 0 0 22px; padding-right: 42px; }
.inline-search { display: grid; grid-template-columns: 1fr auto; gap: 10px; max-width: 720px; }
.inline-search label { grid-column: 1 / -1; font-weight: 700; }
.inline-search input, .search-line input { min-width: 0; border: 1px solid #cbc7dd; border-radius: 10px; background: #fff; padding: 12px 14px; outline: none; }
.inline-search input:focus, .search-line input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(111,90,232,.12); }
.inline-search button, .search-line button { border: 0; border-radius: 10px; padding: 11px 17px; background: var(--primary); color: #fff; font-weight: 760; }
.privacy-table { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.privacy-table article { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 24px; }
.privacy-table p { color: var(--muted); }
.safety-grid { grid-template-columns: repeat(4, 1fr); }
.safety-grid article > span { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 12px; background: #ece9fb; color: var(--primary); font-weight: 850; margin-bottom: 15px; }
.contact-grid { grid-template-columns: repeat(3, 1fr); }
.verify-grid { grid-template-columns: repeat(4, 1fr); }
.verify-grid strong { color: var(--primary); }
.principle-grid { grid-template-columns: repeat(2, 1fr); }
.compat-grid { grid-template-columns: repeat(4, 1fr); }
.compact-list { max-width: 820px; margin: 0 auto; }
.search-page-head { max-width: 820px; }
.search-results { min-height: 420px; }
.result-meta { margin-bottom: 24px; }
.result-meta p { color: var(--muted); }
.result-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.result-list article { padding: 24px 0; border-bottom: 1px solid var(--line); }
.result-list h3 { margin-bottom: 8px; }
.result-list h3 a:hover { color: var(--primary); }
.result-list p { color: var(--muted); max-width: 850px; margin-bottom: 0; }
.empty-state { text-align: center; max-width: 700px; margin: 30px auto; padding: 42px; background: #fff; border: 1px solid var(--line); border-radius: 18px; }
.empty-state p { color: var(--muted); }
.empty-state .hero-actions { justify-content: center; }
.not-found { padding: 90px 0; min-height: 650px; display: grid; align-items: center; }
.not-found-grid { display: grid; grid-template-columns: 1fr .8fr; gap: 70px; align-items: center; }
.error-code { color: var(--primary); font-size: 5.6rem; line-height: 1; font-weight: 900; margin-bottom: 12px; }
.not-found img { border-radius: 24px; }
.site-footer { background: #20202e; color: #c9c7d3; padding: 62px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 40px; }
.footer-grid h2 { color: #fff; font-size: .95rem; margin-bottom: 15px; }
.footer-grid > div:not(.footer-brand) { display: grid; align-content: start; gap: 9px; }
.footer-grid a { color: #b9b6c5; font-size: .88rem; }
.footer-grid a:hover { color: #fff; }
.footer-brand p { color: #9f9cab; max-width: 430px; font-size: .88rem; margin-top: 18px; }
.footer-logo strong { color: #fff; }
.footer-logo small { color: #aaa7b7; }
.footer-bottom { margin-top: 42px; padding-top: 18px; border-top: 1px solid #3a3948; display: flex; justify-content: space-between; gap: 20px; color: #8f8c9d; font-size: .82rem; }
.search-modal[hidden] { display: none !important; }
.search-modal { position: fixed; inset: 0; z-index: 120; display: grid; place-items: start center; padding: 11vh 20px 20px; }
.search-backdrop { position: absolute; inset: 0; background: rgba(20,20,32,.66); }
.search-panel { position: relative; width: min(680px, 100%); background: #fff; border-radius: 20px; padding: 30px; box-shadow: 0 30px 80px rgba(0,0,0,.25); }
.search-panel h2 { font-size: 1.7rem; }
.search-close { position: absolute; right: 16px; top: 14px; border: 0; background: #efedf6; width: 36px; height: 36px; border-radius: 50%; font-size: 1.4rem; }
.search-form label { display: block; margin-bottom: 8px; font-weight: 700; }
.search-line { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.search-note { color: var(--muted); font-size: .84rem; margin: 10px 0 0; }
body.modal-open { overflow: hidden; }
.back-top { position: fixed; right: 20px; bottom: 20px; z-index: 60; width: 42px; height: 42px; border-radius: 50%; border: 1px solid #d0cde0; background: #fff; color: var(--primary); box-shadow: 0 8px 22px rgba(40,38,62,.12); opacity: 0; pointer-events: none; transform: translateY(10px); transition: .2s; }
.back-top.is-visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
@media (max-width: 1120px) {
    .main-nav a { padding-inline: 7px; font-size: .88rem; }
    .brand { min-width: 185px; }
    .hero-grid, .page-hero-grid { gap: 44px; }
    .article-grid { grid-template-columns: repeat(2, 1fr); }
    .article-grid.full { grid-template-columns: repeat(2, 1fr); }
    .safety-grid, .compat-grid, .verify-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 980px) {
    :root { --shell: min(100% - 32px, 920px); }
    .menu-toggle { display: block; }
    .main-nav { position: absolute; top: 76px; left: 16px; right: 16px; display: none; flex-direction: column; align-items: stretch; gap: 2px; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 9px; box-shadow: var(--shadow); }
    .main-nav.is-open { display: flex; }
    .search-open { margin-left: 0; }
    .hero-grid, .page-hero-grid { grid-template-columns: 1fr; }
    .hero-media, .page-hero img { max-width: 760px; }
    .hero-facts { grid-template-columns: 1fr; }
    .core-grid { grid-template-columns: 1fr; }
    .core-card { display: grid; grid-template-columns: 280px 1fr; }
    .core-card img { height: 100%; aspect-ratio: auto; }
    .core-card-body p { min-height: 0; }
    .split-layout, .editorial-band, .trust-grid, .feature-block, .topic-index, .comparison { grid-template-columns: 1fr; gap: 38px; }
    .sticky-heading, .article-aside { position: static; }
    .side-illustration { max-width: 620px; }
    .download-steps { grid-template-columns: repeat(2, 1fr); }
    .process-band { grid-template-columns: repeat(2, 1fr); }
    .process-band div:nth-child(2) { border-right: 0; }
    .process-band div:nth-child(n+3) { border-top: 1px solid var(--line); }
    .process-band.vertical { grid-template-columns: repeat(2, 1fr); }
    .process-band.vertical div:nth-child(3) { border-right: 1px solid var(--line); }
    .process-band.vertical div:nth-child(even) { border-right: 0; }
    .process-band.vertical div:nth-child(n+3) { border-top: 1px solid var(--line); }
    .article-layout { grid-template-columns: 1fr; gap: 28px; }
    .article-body { max-width: 100%; }
    .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
    .footer-grid > div:last-child { grid-column: 2 / 4; }
}
@media (max-width: 720px) {
    :root { --shell: calc(100% - 26px); }
    .header-inner { min-height: 68px; gap: 10px; }
    .main-nav { top: 68px; }
    .brand { min-width: 0; margin-right: auto; }
    .brand small { display: none; }
    .brand strong { font-size: .94rem; }
    .brand img { width: 38px; height: 38px; }
    .search-open { font-size: .82rem; padding: 7px 10px; }
    .hero { padding-top: 52px; }
    h1 { font-size: clamp(2.18rem, 11vw, 3.35rem); }
    .page-hero.compact h1 { font-size: clamp(2rem, 9.5vw, 3rem); }
    .section { padding-top: 62px; padding-bottom: 62px; }
    .core-card { display: block; }
    .core-card img { aspect-ratio: 1.65; }
    .article-grid, .article-grid.full, .faq-preview-grid, .privacy-table, .principle-grid, .contact-grid, .safety-grid, .compat-grid, .verify-grid, .signal-list { grid-template-columns: 1fr; }
    .trust-points { grid-template-columns: 1fr; }
    .download-steps { grid-template-columns: 1fr; }
    .process-band, .process-band.vertical { grid-template-columns: 1fr; }
    .process-band div, .process-band.vertical div { border-right: 0 !important; border-top: 1px solid var(--line); }
    .process-band div:first-child, .process-band.vertical div:first-child { border-top: 0; }
    .order-strip { justify-content: flex-start; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-grid > div:last-child { grid-column: auto; }
    .footer-bottom { flex-direction: column; }
    .search-line, .inline-search { grid-template-columns: 1fr; }
    .search-panel { padding: 26px 20px; }
    .not-found-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
    .hero-actions .button { width: 100%; }
    .step-item { grid-template-columns: 44px 1fr; }
    .article-card > div, .download-steps article, .info-columns article, .verify-grid article, .principle-grid article, .contact-grid article, .compat-grid article, .safety-grid article { padding: 18px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand { grid-column: auto; }
    .search-open { display: none; }
    .error-code { font-size: 4.4rem; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}