* {
    box-sizing: border-box;
}

:root {
    --bg: #F5F7FF;
    --nav: rgba(12, 18, 40, 0.94);
    --title: #131A35;
    --brand: #5B6CFF;
    --deep: #16213E;
    --cyan: #00D4FF;
    --gold: #FFC857;
    --rose: #D94F70;
    --violet: #7A5CFF;
    --text: #1F2740;
    --muted: #66708A;
    --soft: #9AA4BA;
    --card: #FFFFFF;
    --dark-card: #11182F;
    --border: rgba(91, 108, 255, 0.18);
    --shadow: 0 20px 46px rgba(25, 43, 91, 0.14);
    --gradient: linear-gradient(135deg, #5B6CFF 0%, #7A5CFF 48%, #00D4FF 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    overflow-x: hidden;
    background: var(--bg);
    color: var(--text);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
    line-height: 1.78;
    -webkit-font-smoothing: antialiased;
}

body.drawer-open {
    overflow: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: inherit;
}

button,
input,
textarea,
select {
    font: inherit;
}

.skip-link {
    position: fixed;
    left: 16px;
    top: -60px;
    z-index: 12000;
    padding: 10px 16px;
    border-radius: 10px;
    background: #fff;
    color: var(--title);
    box-shadow: var(--shadow);
    transition: top .2s ease;
}

.skip-link:focus {
    top: 12px;
}

.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 9999;
    background: var(--nav);
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 26px rgba(25, 43, 91, 0.16);
}

.header-inner {
    max-width: 1280px;
    min-height: 72px;
    margin: 0 auto;
    padding: 0 24px;
    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: .03em;
}

.site-logo {
    color: #fff;
    flex: 0 0 auto;
}

.site-logo img,
.drawer-brand img,
.footer-logo img {
    display: block;
    width: auto;
    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 1 auto;
}

.nav-core a {
    padding: 8px 12px;
    border-radius: 999px;
    color: #EEF2FF;
    text-decoration: none;
    white-space: nowrap;
    transition: .2s ease;
}

.nav-core a:hover,
.nav-core a.active {
    color: #fff;
    background: rgba(0, 212, 255, 0.16);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
}

.main-btn,
.secondary-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, opacity .2s ease;
}

.main-btn {
    background: var(--gradient);
    color: #fff;
    box-shadow: 0 14px 32px rgba(91, 108, 255, 0.22);
}

.secondary-btn {
    color: var(--brand);
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: 0 12px 30px rgba(25, 43, 91, 0.1);
}

.ghost-btn {
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.34);
    background: rgba(255, 255, 255, 0.08);
}

.main-btn:hover,
.secondary-btn:hover,
.ghost-btn:hover {
    transform: translateY(-2px);
}

.menu-button,
.drawer-close {
    border: 0;
    cursor: pointer;
}

.menu-button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    background: rgba(255, 255, 255, .09);
}

.menu-button span {
    width: 18px;
    height: 2px;
    background: #fff;
    border-radius: 3px;
}

.mobile-menu-button {
    display: none;
}

.drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(7, 10, 25, .56);
    opacity: 0;
    transition: opacity .22s ease;
}

.drawer-overlay.visible {
    opacity: 1;
}

.site-drawer {
    position: fixed;
    z-index: 10001;
    top: 0;
    right: 0;
    width: min(390px, 92vw);
    height: 100dvh;
    padding: 22px;
    overflow-y: auto;
    transform: translateX(102%);
    background: #fff;
    box-shadow: -24px 0 60px rgba(6, 16, 47, .25);
    transition: transform .26s ease;
}

.site-drawer.open {
    transform: translateX(0);
}

.drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--border);
}

.drawer-brand {
    color: var(--title);
    font-size: 20px;
}

.drawer-close {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: #EFF1FF;
    color: var(--title);
    font-size: 30px;
    line-height: 1;
}

.drawer-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin: 20px 0;
}

.drawer-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-radius: 14px;
    background: #F7F8FF;
    color: var(--text);
    text-decoration: none;
    border: 1px solid transparent;
}

.drawer-nav a:hover,
.drawer-nav a.active {
    color: var(--brand);
    background: #EEF0FF;
    border-color: var(--border);
}

.drawer-note {
    padding: 18px;
    border-radius: 18px;
    background: linear-gradient(135deg, #EEF1FF, #EAFBFF);
}

.drawer-note strong {
    color: var(--title);
}

.drawer-note p {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 14px;
}

main {
    display: block;
}

.shell {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
}

.section {
    padding: 84px 0;
}

.section-sm {
    padding: 54px 0;
}

.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: #B17500;
    font-size: 14px;
    font-weight: 800;
    letter-spacing: .09em;
    text-transform: uppercase;
}

.section-kicker::before {
    content: "";
    width: 30px;
    height: 2px;
    background: var(--gold);
}

.section-title,
.page-hero h1,
.hero-copy h1,
.card h2,
.card h3,
.zone-card h2,
.zone-card h3,
.info-card h2,
.info-card h3,
.review-card h3,
.faq-item h3 {
    color: var(--title);
    line-height: 1.22;
}

.section-title {
    margin: 0;
    font-size: clamp(30px, 4vw, 48px);
    letter-spacing: -.035em;
}

.section-lead {
    max-width: 760px;
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 18px;
}

.section-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 32px;
}

.text-link {
    color: var(--brand);
    text-decoration: none;
    font-weight: 700;
}

.text-link:hover {
    text-decoration: underline;
}

.hero {
    position: relative;
    padding: 72px 0 56px;
    overflow: hidden;
    background:
        radial-gradient(circle at 8% 20%, rgba(122, 92, 255, .22), transparent 30%),
        radial-gradient(circle at 90% 18%, rgba(0, 212, 255, .20), transparent 28%),
        linear-gradient(135deg, #F1F0FF 0%, #EAF8FF 48%, #FFF1F8 100%);
}

.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    filter: blur(4px);
}

.hero::before {
    width: 250px;
    height: 250px;
    left: -120px;
    bottom: -80px;
    background: rgba(91, 108, 255, .16);
}

.hero::after {
    width: 170px;
    height: 170px;
    right: 4%;
    top: 8%;
    background: rgba(255, 200, 87, .18);
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.02fr) minmax(420px, .98fr);
    align-items: center;
    gap: 58px;
}

.hero-badge,
.tag,
.badge {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    padding: 7px 13px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 800;
}

.hero-badge {
    color: #4337B5;
    background: rgba(255, 255, 255, .78);
    border: 1px solid rgba(91, 108, 255, .18);
    box-shadow: 0 12px 32px rgba(91, 108, 255, .12);
}

.hero-copy h1 {
    margin: 18px 0 10px;
    font-size: clamp(52px, 8vw, 92px);
    letter-spacing: -.055em;
}

.hero-copy .hero-subtitle {
    margin: 0;
    color: var(--violet);
    font-size: clamp(24px, 4vw, 38px);
    font-weight: 800;
    line-height: 1.3;
}

.hero-copy .hero-description {
    max-width: 690px;
    margin: 24px 0 0;
    color: #4D5875;
    font-size: 17px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.hero-points {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 28px;
}

.hero-points span {
    padding: 8px 13px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .74);
    color: var(--deep);
    font-size: 14px;
    font-weight: 700;
    border: 1px solid rgba(91, 108, 255, .12);
}

.hero-visual {
    position: relative;
}

.hero-visual::before {
    content: "";
    position: absolute;
    inset: 8% 0 0 8%;
    border-radius: 42px;
    background: var(--gradient);
    opacity: .18;
    filter: blur(26px);
}

.hero-visual img {
    position: relative;
    display: block;
    width: 100%;
    max-height: 590px;
    object-fit: contain;
    filter: drop-shadow(0 28px 44px rgba(25, 43, 91, .22));
}

.signal-strip {
    position: relative;
    z-index: 3;
    margin-top: -2px;
}

.signal-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 24px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.signal-item {
    padding: 24px;
}

.signal-item + .signal-item {
    border-left: 1px solid var(--border);
}

.signal-item h2,
.signal-item h3 {
    margin: 0 0 8px;
    color: var(--title);
    font-size: 18px;
}

.signal-item p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.channel-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.channel-pill {
    flex: 1 1 210px;
    min-height: 112px;
    padding: 18px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid var(--border);
    text-decoration: none;
    transition: .2s ease;
}

.channel-pill:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 34px rgba(25, 43, 91, .12);
}

.channel-pill strong {
    display: block;
    margin-bottom: 5px;
    color: var(--title);
}

.channel-pill span {
    color: var(--muted);
    font-size: 14px;
}

.split {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
    gap: 38px;
}

.split.reverse .split-media {
    order: 2;
}

.split-media {
    position: relative;
}

.split-media img,
.page-hero-media img,
.card-media img,
.zone-card img,
.app-section img,
.content-img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
}

.split-media img {
    max-height: 560px;
    filter: drop-shadow(0 24px 34px rgba(25, 43, 91, .18));
}

.split-copy p {
    color: var(--muted);
}

.list-check {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 24px 0;
    list-style: none;
}

.list-check li {
    position: relative;
    padding-left: 30px;
    color: #3D4865;
}

.list-check li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 2px;
    display: grid;
    place-items: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    color: #fff;
    background: var(--gradient);
    font-size: 12px;
    font-weight: 900;
}

.grid-2,
.grid-3,
.grid-4,
.review-grid,
.faq-grid {
    display: grid;
    gap: 24px;
}

.grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.zone-card,
.info-card,
.review-card {
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    border-radius: 22px;
}

.card,
.info-card,
.review-card {
    padding: 28px;
}

.card h2,
.card h3,
.info-card h2,
.info-card h3 {
    margin: 0 0 12px;
}

.card p,
.info-card p,
.review-card p {
    margin: 0 0 14px;
    color: var(--muted);
}

.card p:last-child,
.info-card p:last-child,
.review-card p:last-child {
    margin-bottom: 0;
}

.zone-card {
    overflow: hidden;
}

.zone-card .card-media {
    padding: 18px 18px 0;
}

.zone-card img {
    max-height: 300px;
}

.zone-content {
    padding: 26px;
}

.zone-content h2,
.zone-content h3 {
    margin-top: 0;
}

.zone-content p {
    color: var(--muted);
}

.card-points {
    display: grid;
    gap: 10px;
    margin: 18px 0;
}

.card-point {
    padding: 12px 14px;
    border-radius: 14px;
    background: #F6F7FF;
}

.card-point strong {
    display: block;
    color: var(--title);
    font-size: 15px;
}

.card-point span {
    color: var(--muted);
    font-size: 13px;
}

.soft-blue {
    background: #EFF8FF;
}

.soft-gold {
    background: #FFF4D6;
}

.soft-violet {
    background: #F1EFFF;
}

.dark-panel {
    color: #EEF2FF;
    background:
        radial-gradient(circle at 90% 10%, rgba(0, 212, 255, .16), transparent 30%),
        linear-gradient(145deg, #11182F, #16213E);
}

.dark-panel h2,
.dark-panel h3,
.dark-panel .section-title {
    color: #fff;
}

.dark-panel p,
.dark-panel .section-lead {
    color: #C8D0E8;
}

.safety-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.safety-card {
    display: grid;
    grid-template-columns: 170px 1fr;
    align-items: center;
    gap: 24px;
    padding: 24px;
    border-radius: 24px;
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.safety-card img {
    width: 170px;
    height: 170px;
    object-fit: contain;
}

.safety-card h3 {
    margin: 0 0 8px;
    color: var(--title);
}

.safety-card p {
    margin: 0 0 12px;
    color: var(--muted);
}

.review-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.review-card {
    position: relative;
    padding-top: 48px;
}

.review-card::before {
    content: "“";
    position: absolute;
    left: 24px;
    top: 10px;
    color: var(--violet);
    font-size: 52px;
    font-weight: 900;
    line-height: 1;
}

.review-card h3 {
    margin: 12px 0 0;
    font-size: 15px;
}

.faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.faq-item {
    padding: 24px;
    border-radius: 18px;
    background: #fff;
    border: 1px solid var(--border);
}

.faq-item h3 {
    margin: 0 0 10px;
    font-size: 18px;
}

.faq-item p {
    margin: 0;
    color: var(--muted);
}

.notice-band {
    padding: 26px 0;
    color: #fff;
    background: linear-gradient(135deg, #5B6CFF, #7A5CFF 52%, #D94F70);
}

.notice-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.notice-inner h2 {
    margin: 0 0 6px;
    color: #fff;
    font-size: 24px;
}

.notice-inner p {
    margin: 0;
    color: rgba(255, 255, 255, .86);
}

.page-hero {
    position: relative;
    overflow: hidden;
    padding: 72px 0;
    background:
        radial-gradient(circle at 85% 20%, rgba(0, 212, 255, .18), transparent 30%),
        radial-gradient(circle at 10% 70%, rgba(122, 92, 255, .18), transparent 32%),
        linear-gradient(135deg, #F0F1FF, #ECFAFF 54%, #FFF3F8);
}

.page-hero-grid {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
    gap: 46px;
}

.page-hero h1 {
    margin: 12px 0 18px;
    font-size: clamp(38px, 6vw, 66px);
    letter-spacing: -.045em;
}

.page-hero p {
    max-width: 720px;
    margin: 0;
    color: #55607B;
    font-size: 18px;
}

.page-hero-media img {
    max-height: 440px;
    filter: drop-shadow(0 24px 38px rgba(25, 43, 91, .2));
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    color: var(--muted);
    font-size: 14px;
}

.breadcrumb a {
    color: var(--brand);
    text-decoration: none;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
    gap: 30px;
}

.article-content {
    min-width: 0;
}

.prose {
    padding: 34px;
    border-radius: 24px;
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.prose h2 {
    margin: 34px 0 12px;
    color: var(--title);
    font-size: 28px;
    line-height: 1.3;
}

.prose h2:first-child {
    margin-top: 0;
}

.prose h3 {
    margin: 24px 0 8px;
    color: var(--title);
    font-size: 20px;
}

.prose p,
.prose li {
    color: #55607B;
}

.prose p {
    margin: 0 0 16px;
}

.prose ul {
    padding-left: 22px;
}

.prose blockquote {
    margin: 22px 0;
    padding: 18px 20px;
    border-left: 4px solid var(--violet);
    border-radius: 0 16px 16px 0;
    background: #F5F4FF;
    color: #4D5875;
}

.side-stack {
    display: grid;
    gap: 18px;
    position: sticky;
    top: 96px;
}

.side-card {
    padding: 22px;
    border-radius: 20px;
    background: #fff;
    border: 1px solid var(--border);
    box-shadow: 0 14px 32px rgba(25, 43, 91, .1);
}

.side-card h2,
.side-card h3 {
    margin: 0 0 12px;
    color: var(--title);
    font-size: 19px;
}

.side-card p {
    margin: 0 0 14px;
    color: var(--muted);
    font-size: 14px;
}

.side-links {
    display: grid;
    gap: 8px;
}

.side-links a {
    padding: 10px 12px;
    border-radius: 12px;
    color: var(--brand);
    text-decoration: none;
    background: #F6F7FF;
}

.side-links a:hover {
    background: #EEF0FF;
}

.step-list {
    counter-reset: step;
    display: grid;
    gap: 16px;
}

.step-item {
    position: relative;
    padding: 18px 18px 18px 70px;
    border-radius: 18px;
    background: #F7F8FF;
}

.step-item::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: 18px;
    top: 18px;
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    color: #fff;
    background: var(--gradient);
    font-weight: 800;
}

.step-item h3 {
    margin: 0 0 5px;
}

.step-item p {
    margin: 0;
}

.callout {
    padding: 24px;
    border-radius: 20px;
    background: linear-gradient(135deg, #EEF1FF, #EAFBFF);
    border: 1px solid var(--border);
}

.callout h2,
.callout h3 {
    margin-top: 0;
    color: var(--title);
}

.callout p:last-child {
    margin-bottom: 0;
}

.site-footer {
    padding: 68px 0 0;
    color: #EEF2FF;
    background: #0B1024;
}

.footer-inner {
    width: min(1200px, calc(100% - 40px));
    margin: 0 auto;
    display: grid;
    grid-template-columns: .9fr 1.5fr;
    gap: 70px;
}

.footer-brand p {
    max-width: 390px;
    color: #AEB8D2;
}

.footer-logo {
    color: #fff;
    font-size: 22px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
}

.footer-links section {
    display: grid;
    align-content: start;
    gap: 8px;
}

.footer-links h2 {
    margin: 0 0 8px;
    color: #fff;
    font-size: 16px;
}

.footer-links a {
    color: #AEB8D2;
    text-decoration: none;
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--cyan);
}

.footer-bottom {
    width: min(1200px, calc(100% - 40px));
    margin: 48px auto 0;
    padding: 20px 0 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    border-top: 1px solid rgba(255, 255, 255, .1);
    color: #929FBE;
    font-size: 13px;
}

.footer-bottom p {
    margin: 0;
}

.mobile-bottom-nav {
    display: none;
}

@media (max-width: 1080px) {
    .nav-core {
        gap: 2px;
    }

    .nav-core a {
        padding-inline: 9px;
        font-size: 14px;
    }

    .hero-grid,
    .page-hero-grid {
        grid-template-columns: 1fr 400px;
        gap: 36px;
    }

    .grid-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .article-layout {
        grid-template-columns: 1fr;
    }

    .side-stack {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .header-inner {
        min-height: 64px;
        padding: 0 16px;
    }

    .nav-core,
    .desktop-menu-button {
        display: none;
    }

    .mobile-menu-button {
        display: inline-flex;
    }

    .site-logo {
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
    }

    .site-logo img {
        max-height: 38px;
    }

    .site-logo span {
        font-size: 18px;
    }

    .header-actions {
        margin-left: auto;
    }

    .header-cta {
        min-height: 40px;
        padding: 8px 15px;
        font-size: 14px;
    }

    .hero {
        padding-top: 54px;
    }

    .hero-grid,
    .page-hero-grid {
        grid-template-columns: 1fr;
    }

    .hero-copy {
        text-align: center;
    }

    .hero-copy .hero-description {
        margin-inline: auto;
    }

    .hero-actions,
    .hero-points {
        justify-content: center;
    }

    .hero-visual,
    .page-hero-media {
        max-width: 620px;
        margin: 0 auto;
    }

    .signal-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .signal-item + .signal-item {
        border-left: 0;
    }

    .signal-item:nth-child(even) {
        border-left: 1px solid var(--border);
    }

    .signal-item:nth-child(n+3) {
        border-top: 1px solid var(--border);
    }

    .split,
    .split.reverse {
        grid-template-columns: 1fr;
    }

    .split.reverse .split-media {
        order: 0;
    }

    .grid-3,
    .review-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .safety-wrap {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        gap: 38px;
    }

    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 680px) {
    body {
        padding-bottom: calc(70px + env(safe-area-inset-bottom));
    }

    .shell {
        width: min(100% - 28px, 1200px);
    }

    .section {
        padding: 60px 0;
    }

    .section-sm {
        padding: 42px 0;
    }

    .section-heading,
    .notice-inner {
        align-items: flex-start;
        flex-direction: column;
    }

    .hero-copy h1 {
        font-size: 54px;
    }

    .hero-copy .hero-subtitle {
        font-size: 26px;
    }

    .hero-copy .hero-description,
    .page-hero p,
    .section-lead {
        font-size: 16px;
    }

    .signal-grid,
    .grid-2,
    .grid-3,
    .grid-4,
    .review-grid,
    .faq-grid,
    .side-stack {
        grid-template-columns: 1fr;
    }

    .signal-item:nth-child(even) {
        border-left: 0;
    }

    .signal-item + .signal-item,
    .signal-item:nth-child(n+3) {
        border-top: 1px solid var(--border);
    }

    .safety-card {
        grid-template-columns: 110px 1fr;
        gap: 16px;
    }

    .safety-card img {
        width: 110px;
        height: 110px;
    }

    .page-hero {
        padding: 54px 0;
    }

    .prose {
        padding: 24px 20px;
    }

    .footer-links {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .mobile-bottom-nav {
        position: fixed;
        z-index: 9000;
        left: 0;
        right: 0;
        bottom: 0;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        padding: 7px 8px calc(7px + env(safe-area-inset-bottom));
        background: rgba(11, 16, 36, .96);
        backdrop-filter: blur(14px);
        box-shadow: 0 -10px 28px rgba(6, 16, 47, .16);
    }

    .mobile-bottom-nav a {
        display: grid;
        justify-items: center;
        gap: 2px;
        color: #B5BDD3;
        text-decoration: none;
        font-size: 12px;
    }

    .mobile-bottom-nav a span {
        font-size: 20px;
        line-height: 1;
    }

    .mobile-bottom-nav a.active {
        color: var(--cyan);
    }
}

@media (max-width: 430px) {
    .site-logo span {
        display: none;
    }

    .drawer-nav {
        grid-template-columns: 1fr;
    }

    .header-cta {
        padding-inline: 12px;
    }

    .safety-card {
        grid-template-columns: 1fr;
    }

    .safety-card img {
        width: 150px;
        height: 150px;
        margin: 0 auto;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
        gap: 28px 18px;
    }
}