:root {
  --bg: #F5F7FF;
  --nav: rgba(12,18,40,.94);
  --title: #131A35;
  --primary: #5B6CFF;
  --deep: #16213E;
  --cyan: #00D4FF;
  --gold: #FFC857;
  --rose: #D94F70;
  --purple: #7A5CFF;
  --text: #1F2740;
  --muted: #66708A;
  --soft: #9AA4BA;
  --card: #FFFFFF;
  --dark-card: #11182F;
  --border: rgba(91,108,255,.18);
  --shadow: 0 20px 46px rgba(25,43,91,.14);
  --gradient: linear-gradient(135deg,#5B6CFF 0%,#7A5CFF 48%,#00D4FF 100%);
  --radius: 24px;
  --container: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.75; overflow-x: hidden; }
body.drawer-open { overflow: hidden; }
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
main { min-height: 60vh; }
.container { width: min(calc(100% - 40px), var(--container)); margin: 0 auto; }
.narrow-container { width: min(calc(100% - 40px), 920px); margin: 0 auto; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 20000; background: #fff; color: var(--title); padding: 10px 16px; border-radius: 12px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; width: 100%; z-index: 9999; background: var(--nav); backdrop-filter: blur(14px); box-shadow: 0 8px 26px rgba(25,43,91,.16); }
.header-inner { max-width: 1280px; margin: 0 auto; min-height: 72px; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.site-logo, .drawer-brand, .footer-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; letter-spacing: .02em; }
.site-logo { color: #fff; flex: 0 0 auto; }
.site-logo img { width: auto; max-width: 46px; max-height: 44px; object-fit: contain; }
.site-logo span { font-size: 20px; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 8px; flex: 1; }
.nav-core a { color: #EEF2FF; text-decoration: none; border-radius: 999px; padding: 8px 12px; white-space: nowrap; font-size: 15px; transition: .2s ease; }
.nav-core a:hover, .nav-core a.active { color: #fff; background: rgba(0,212,255,.16); }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.main-btn, .ghost-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 22px; border-radius: 999px; text-decoration: none; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.main-btn { background: var(--gradient); color: #fff; box-shadow: 0 14px 32px rgba(91,108,255,.22); }
.main-btn:hover, .ghost-btn:hover { transform: translateY(-2px); }
.main-btn:hover { box-shadow: 0 18px 38px rgba(91,108,255,.32); }
.ghost-btn { color: var(--primary); background: rgba(255,255,255,.8); border: 1px solid var(--border); }
.header-cta { min-height: 40px; padding: 7px 18px; font-size: 14px; }
.menu-button { width: 42px; height: 42px; padding: 0; border: 1px solid rgba(255,255,255,.16); border-radius: 13px; background: rgba(255,255,255,.08); display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; cursor: pointer; }
.menu-button span { width: 18px; height: 2px; border-radius: 4px; background: #fff; }
.mobile-menu-button { display: none; }
.drawer-mask { position: fixed; inset: 0; z-index: 10000; background: rgba(5,9,24,.56); opacity: 0; transition: opacity .25s ease; }
.drawer-mask.is-visible { opacity: 1; }
.site-drawer { position: fixed; z-index: 10001; right: 0; top: 0; width: min(420px, 92vw); height: 100dvh; padding: 24px; background: #fff; box-shadow: -24px 0 70px rgba(11,16,36,.24); transform: translateX(105%); transition: transform .3s ease; overflow-y: auto; }
.site-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.drawer-brand { color: var(--title); }
.drawer-brand img { width: 42px; max-height: 42px; object-fit: contain; }
.drawer-close { border: 0; background: #EEF1FF; color: var(--title); width: 42px; height: 42px; border-radius: 50%; font-size: 28px; line-height: 1; cursor: pointer; }
.drawer-intro { color: var(--muted); margin: 18px 0; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.drawer-nav a { padding: 13px 14px; text-decoration: none; border: 1px solid var(--border); border-radius: 15px; background: #F8F9FF; color: var(--title); font-weight: 650; }
.drawer-nav a:hover { background: #EEF1FF; color: var(--primary); }
.drawer-safety { margin-top: 20px; padding: 18px; border-radius: 18px; background: var(--dark-card); color: #EEF2FF; }
.drawer-safety p { margin: 6px 0 0; color: #B9C4E4; font-size: 14px; }
.hero, .inner-hero { position: relative; overflow: hidden; background: radial-gradient(circle at 10% 10%,rgba(122,92,255,.2),transparent 38%), radial-gradient(circle at 88% 12%,rgba(0,212,255,.18),transparent 34%), linear-gradient(145deg,#F8F5FF 0%,#ECF8FF 52%,#FFF7FD 100%); }
.hero { padding: 84px 0 74px; }
.hero-grid { display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 70px; position: relative; z-index: 2; }
.hero-copy h1, .inner-hero-copy h1 { color: var(--title); letter-spacing: -.045em; line-height: 1.08; margin: 12px 0 14px; }
.hero-copy h1 { font-size: clamp(54px,7vw,92px); }
.inner-hero-copy h1 { font-size: clamp(40px,5vw,66px); }
.eyebrow, .section-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--purple); font-weight: 800; letter-spacing: .08em; font-size: 14px; }
.eyebrow::before, .section-kicker::before { content: ""; width: 28px; height: 3px; border-radius: 999px; background: linear-gradient(90deg,var(--purple),var(--cyan)); }
.hero-subtitle { margin: 0 0 14px; color: var(--deep); font-size: clamp(22px,3vw,34px); font-weight: 750; }
.hero-description, .inner-hero-copy > p { color: var(--muted); font-size: 17px; max-width: 720px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-points { list-style: none; padding: 0; margin: 32px 0 0; display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
.hero-points li { padding: 15px; border: 1px solid rgba(91,108,255,.13); border-radius: 18px; background: rgba(255,255,255,.72); backdrop-filter: blur(10px); }
.hero-points strong { display: block; color: var(--title); font-size: 14px; }
.hero-points span { display: block; color: var(--muted); font-size: 12px; line-height: 1.55; margin-top: 5px; }
.hero-visual { position: relative; min-width: 0; }
.hero-visual img { width: 100%; height: auto; object-fit: contain; position: relative; z-index: 2; filter: drop-shadow(0 28px 36px rgba(25,43,91,.2)); }
.visual-glow { position: absolute; inset: 12% 8%; background: radial-gradient(circle,var(--cyan),transparent 65%); filter: blur(50px); opacity: .24; }
.floating-card { position: absolute; z-index: 3; min-width: 180px; padding: 14px 16px; background: rgba(255,255,255,.9); border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow); backdrop-filter: blur(10px); }
.floating-card span { display: block; color: var(--purple); font-size: 12px; font-weight: 800; }
.floating-card strong { color: var(--title); font-size: 14px; }
.card-top { right: -10px; top: 9%; }
.card-bottom { left: -16px; bottom: 8%; }
.hero-orb { position: absolute; border-radius: 50%; filter: blur(2px); opacity: .75; pointer-events: none; }
.orb-one { width: 220px; height: 220px; left: -80px; bottom: -80px; background: rgba(122,92,255,.16); }
.orb-two { width: 180px; height: 180px; right: 6%; top: -70px; background: rgba(0,212,255,.16); }
.highlight-strip { position: relative; z-index: 4; margin-top: -26px; }
.highlight-grid { display: grid; grid-template-columns: repeat(4,1fr); background: #fff; border: 1px solid var(--border); border-radius: 22px; box-shadow: var(--shadow); overflow: hidden; }
.highlight-grid article { display: flex; gap: 12px; padding: 24px 20px; border-right: 1px solid var(--border); }
.highlight-grid article:last-child { border-right: 0; }
.highlight-grid article > span { color: var(--cyan); font-weight: 900; }
.highlight-grid h2 { margin: 0 0 5px; color: var(--title); font-size: 17px; }
.highlight-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.6; }
.section { padding: 92px 0; }
.section-soft { background: linear-gradient(180deg,#EEF6FF 0%,#F8F5FF 100%); }
.section-dark { background: radial-gradient(circle at 15% 0%,rgba(91,108,255,.23),transparent 32%), #0E1530; color: #EEF2FF; }
.section-heading { max-width: 760px; margin: 0 auto 38px; text-align: center; }
.section-heading h2, .section-copy h2, .content-block h2, .aside-card h2, .responsible-inner h2, .security-card h2 { color: var(--title); font-size: clamp(30px,4vw,48px); line-height: 1.22; letter-spacing: -.03em; margin: 10px 0 14px; }
.section-heading p, .section-copy p { color: var(--muted); font-size: 16px; }
.section-heading.light h2 { color: #fff; }
.section-heading.light p { color: #B9C4E4; }
.compact-heading { margin-bottom: 26px; }
.channel-section { padding-top: 74px; }
.capsule-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 12px; }
.capsule-grid a { padding: 16px; border-radius: 18px; background: #fff; border: 1px solid var(--border); text-decoration: none; box-shadow: 0 10px 30px rgba(25,43,91,.07); transition: .2s ease; }
.capsule-grid a:hover { transform: translateY(-3px); border-color: rgba(91,108,255,.4); }
.capsule-grid strong { display: block; color: var(--title); }
.capsule-grid span { display: block; color: var(--muted); font-size: 12px; margin-top: 4px; line-height: 1.55; }
.split-layout { display: grid; grid-template-columns: .92fr 1.08fr; align-items: center; gap: 70px; }
.media-frame { border-radius: 30px; padding: 20px; background: linear-gradient(145deg,#E9E9FF,#EAFBFF); box-shadow: var(--shadow); }
.media-frame img, .content-img { width: 100%; height: auto; object-fit: contain; border-radius: 20px; }
.layered-media { position: relative; }
.media-banner { width: 100%; height: auto; object-fit: contain; border-radius: 18px; margin-top: 14px; }
.media-note { position: absolute; right: -18px; bottom: 28px; padding: 12px 18px; border-radius: 999px; background: var(--dark-card); color: #fff; font-weight: 800; box-shadow: var(--shadow); }
.section-copy .main-btn { margin-top: 16px; }
.inline-links { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 20px; }
.inline-links a, .text-link { color: var(--primary); font-weight: 750; text-decoration: none; }
.media-stack { position: relative; padding: 0 40px 40px 0; }
.media-stack > img:first-child { width: 100%; border-radius: 28px; box-shadow: var(--shadow); object-fit: contain; background: #fff; }
.media-stack .stack-accent { position: absolute; width: 42%; right: 0; bottom: 0; border: 8px solid #fff; border-radius: 24px; box-shadow: var(--shadow); object-fit: contain; }
.feature-pair { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.feature-card, .info-card, .review-card, .security-card, .aside-card, .article-panel, .app-callout { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: var(--radius); }
.feature-card { overflow: hidden; }
.feature-card > img { width: 100%; aspect-ratio: 16/10; object-fit: contain; background: linear-gradient(145deg,#EEF1FF,#ECFAFF); }
.feature-card > div { padding: 28px; }
.feature-card h3, .info-card h3, .app-callout h3 { margin: 8px 0 10px; color: var(--title); font-size: 24px; line-height: 1.3; }
.feature-card p, .info-card p, .security-card p { color: var(--muted); }
.feature-card ul { padding-left: 20px; color: var(--muted); }
.card-label { color: var(--purple); font-weight: 850; font-size: 13px; letter-spacing: .06em; }
.dark-pair .dark-card { background: #151D3A; border-color: rgba(255,255,255,.1); }
.dark-card h3 { color: #fff; }
.dark-card p { color: #B9C4E4; }
.dark-card > img { background: #11182F; }
.dark-card .text-link { color: var(--cyan); }
.triple-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.info-card { padding: 24px; }
.info-card > img { width: 100%; aspect-ratio: 16/10; object-fit: contain; background: linear-gradient(145deg,#EEF1FF,#ECFAFF); border-radius: 18px; margin-bottom: 20px; }
.security-section { background: #fff; }
.security-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.security-card { display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 20px; padding: 28px; overflow: hidden; }
.security-card h2 { font-size: 30px; }
.security-card img { width: 100%; object-fit: contain; }
.reviews-section { background: linear-gradient(180deg,#fff 0%,#F3F5FF 100%); }
.review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.review-grid.two-columns { grid-template-columns: repeat(2,1fr); }
.review-card { margin: 0; padding: 24px; }
.review-card p { color: var(--text); margin: 0 0 16px; }
.review-card footer { color: var(--muted); font-size: 13px; }
.accordion-list { display: grid; gap: 12px; }
.accordion-list details { background: #fff; border: 1px solid var(--border); border-radius: 18px; padding: 0 20px; box-shadow: 0 10px 28px rgba(25,43,91,.07); }
.accordion-list summary { color: var(--title); font-weight: 800; cursor: pointer; padding: 18px 30px 18px 0; list-style: none; position: relative; }
.accordion-list summary::-webkit-details-marker { display: none; }
.accordion-list summary::after { content: "+"; position: absolute; right: 0; top: 13px; width: 32px; height: 32px; display: grid; place-items: center; border-radius: 50%; background: #EEF1FF; color: var(--primary); font-size: 22px; }
.accordion-list details[open] summary::after { content: "−"; }
.accordion-list details p { margin: 0 0 20px; color: var(--muted); }
.center-action { text-align: center; margin-top: 28px; }
.responsible-banner { padding: 50px 0; background: linear-gradient(135deg,#11182F,#273365); color: #EEF2FF; }
.responsible-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.responsible-inner h2 { color: #fff; font-size: 36px; }
.responsible-inner p { color: #C2CAE3; max-width: 850px; }
.light-ghost { color: #fff; background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.2); white-space: nowrap; }
.inner-hero { padding: 66px 0; }
.inner-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 60px; position: relative; z-index: 2; }
.inner-hero-media { padding: 24px; border-radius: 30px; background: rgba(255,255,255,.6); border: 1px solid rgba(91,108,255,.14); box-shadow: var(--shadow); }
.inner-hero-media img { width: 100%; max-height: 480px; object-fit: contain; }
.page-content-section { padding-top: 76px; }
.content-layout { display: grid; grid-template-columns: minmax(0,1fr) 340px; gap: 30px; align-items: start; }
.article-panel { padding: 34px; }
.content-block + .content-block { border-top: 1px solid var(--border); margin-top: 28px; padding-top: 28px; }
.content-block h2 { font-size: 30px; }
.content-block p { color: var(--muted); }
.article-aside { display: grid; gap: 20px; position: sticky; top: 98px; }
.aside-card { padding: 24px; }
.aside-card h2 { font-size: 24px; }
.aside-card ol { padding-left: 22px; color: var(--muted); }
.aside-card li + li { margin-top: 8px; }
.dark-aside { background: var(--dark-card); color: #fff; border-color: rgba(255,255,255,.08); }
.dark-aside h2 { color: #fff; }
.dark-aside p { color: #B9C4E4; }
.dark-aside .text-link { display: block; color: var(--cyan); margin-top: 8px; }
.service-mini { min-height: 210px; }
.service-number { color: var(--cyan); font-weight: 900; font-size: 14px; }
.app-callout { display: grid; grid-template-columns: .8fr 1.2fr; align-items: center; gap: 36px; padding: 28px; }
.app-callout img { width: 100%; max-height: 360px; object-fit: contain; }
.app-callout p { color: var(--muted); }
.faq-category { margin: 46px 0 20px; }
.faq-category:first-child { margin-top: 0; }
.faq-category h2 { color: var(--title); margin: 8px 0; font-size: 34px; }
.large-faq details p { font-size: 16px; }
.faq-support { display: grid; grid-template-columns: .7fr 1.3fr; gap: 34px; align-items: center; margin-top: 46px; padding: 30px; border-radius: 26px; background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.faq-support img { width: 100%; max-height: 300px; object-fit: contain; }
.faq-support h2 { color: var(--title); font-size: 34px; margin: 0 0 10px; }
.faq-support p { color: var(--muted); }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 70px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.8fr repeat(3,1fr); gap: 38px; }
.footer-logo { color: #fff; font-size: 22px; }
.footer-logo img { width: 44px; max-height: 44px; object-fit: contain; }
.footer-brand p { color: #AEB8D7; max-width: 480px; }
.footer-btn { margin-top: 10px; }
.footer-grid h2 { color: #fff; font-size: 16px; margin: 0 0 16px; }
.footer-grid section:not(.footer-brand) a { display: block; color: #B8C2DF; text-decoration: none; margin: 9px 0; font-size: 14px; }
.footer-grid section:not(.footer-brand) a:hover { color: var(--cyan); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); margin-top: 46px; padding-top: 20px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #8F9ABC; font-size: 13px; }
.footer-bottom p { margin: 0; }
.footer-bottom a { color: #B8C2DF; text-decoration: none; margin-left: 18px; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1120px) {
  .nav-core { gap: 2px; }
  .nav-core a { padding: 8px 9px; font-size: 14px; }
  .hero-grid, .inner-hero-grid { gap: 38px; }
  .highlight-grid { grid-template-columns: repeat(2,1fr); }
  .highlight-grid article:nth-child(2) { border-right: 0; }
  .highlight-grid article:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .capsule-grid { grid-template-columns: repeat(3,1fr); }
}
@media (max-width: 900px) {
  .nav-core, .desktop-menu-button { display: none; }
  .mobile-menu-button { display: inline-flex; }
  .header-inner { display: grid; grid-template-columns: 44px 1fr auto; gap: 10px; }
  .site-logo { justify-self: center; }
  .site-logo span { display: none; }
  .header-actions { justify-self: end; }
  .header-cta { padding: 7px 14px; }
  .hero { padding-top: 58px; }
  .hero-grid, .inner-hero-grid, .split-layout, .content-layout, .faq-support { grid-template-columns: 1fr; }
  .hero-visual { max-width: 680px; margin: 0 auto; }
  .hero-copy { text-align: center; }
  .hero-description { margin-left: auto; margin-right: auto; }
  .hero-actions, .inline-links { justify-content: center; }
  .hero-points { text-align: left; }
  .reverse-mobile .section-copy { order: 2; }
  .reverse-mobile .media-stack { order: 1; }
  .section-copy { text-align: center; }
  .article-aside { position: static; grid-template-columns: repeat(2,1fr); }
  .security-grid, .review-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1.5fr repeat(3,1fr); gap: 24px; }
}
@media (max-width: 720px) {
  body { padding-bottom: 72px; }
  .container, .narrow-container { width: min(calc(100% - 28px), var(--container)); }
  .section { padding: 68px 0; }
  .header-inner { min-height: 64px; padding: 0 14px; }
  .site-logo img { max-width: 40px; max-height: 38px; }
  .header-cta { min-height: 38px; font-size: 13px; }
  .hero-copy h1 { font-size: 52px; }
  .inner-hero-copy h1 { font-size: 40px; }
  .inner-hero-copy { text-align: center; }
  .inner-hero-copy > p { margin-left: auto; margin-right: auto; }
  .hero-points { grid-template-columns: 1fr; }
  .floating-card { min-width: 150px; padding: 10px 12px; }
  .card-top { right: 0; }
  .card-bottom { left: 0; }
  .highlight-strip { margin-top: 0; padding-top: 14px; }
  .highlight-grid, .feature-pair, .triple-grid, .security-grid, .review-grid, .review-grid.two-columns, .article-aside, .app-callout { grid-template-columns: 1fr; }
  .highlight-grid article { border-right: 0; border-bottom: 1px solid var(--border); }
  .highlight-grid article:last-child { border-bottom: 0; }
  .capsule-grid { grid-template-columns: repeat(2,1fr); }
  .split-layout { gap: 38px; }
  .media-note { right: 10px; }
  .security-card { grid-template-columns: 1fr; }
  .security-card img { max-height: 260px; }
  .responsible-inner { align-items: flex-start; flex-direction: column; }
  .article-panel { padding: 24px; }
  .content-block h2 { font-size: 27px; }
  .drawer-nav { grid-template-columns: 1fr; }
  .site-drawer { left: 0; right: auto; transform: translateX(-105%); }
  .site-drawer.is-open { transform: translateX(0); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-bottom { align-items: flex-start; flex-direction: column; }
  .footer-bottom a { margin: 0 16px 0 0; }
  .mobile-bottom-nav { position: fixed; z-index: 9000; left: 0; right: 0; bottom: 0; min-height: 64px; padding: 7px max(12px, env(safe-area-inset-right)) calc(7px + env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left)); background: rgba(11,16,36,.96); backdrop-filter: blur(12px); display: grid; grid-template-columns: repeat(4,1fr); box-shadow: 0 -8px 28px rgba(11,16,36,.18); }
  .mobile-bottom-nav a { color: #DDE4F8; text-decoration: none; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; font-size: 11px; }
  .mobile-bottom-nav span { color: var(--cyan); font-size: 18px; line-height: 1.1; }
}
@media (max-width: 460px) {
  .header-cta { padding: 7px 11px; }
  .hero { padding-top: 46px; }
  .hero-copy h1 { font-size: 46px; }
  .hero-subtitle { font-size: 23px; }
  .hero-description, .inner-hero-copy > p { font-size: 15px; }
  .capsule-grid { grid-template-columns: 1fr; }
  .floating-card { position: static; margin: 10px 0; }
  .hero-visual { display: flex; flex-direction: column; }
  .hero-visual img { order: 1; }
  .card-top { order: 2; }
  .card-bottom { order: 3; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}