:root {
    --bg: #F5F7FF;
    --ink: #1F2740;
    --muted: #66708A;
    --soft: #9AA4BA;
    --title: #131A35;
    --brand: #5B6CFF;
    --brand-2: #7A5CFF;
    --cyan: #00D4FF;
    --gold: #FFC857;
    --red: #D94F70;
    --nav: rgba(12,18,40,0.94);
    --line: 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%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, sans-serif; line-height: 1.75; overflow-x: hidden; }
body.drawer-open { overflow: hidden; }
a { color: inherit; }
img { max-width: 100%; height: auto; }
main { min-height: 70vh; }
.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: 20px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: #fff; white-space: nowrap; }
.site-logo img { width: auto; max-width: 48px; max-height: 44px; display: block; object-fit: contain; }
.site-logo strong { font-size: 20px; letter-spacing: 1px; }
.nav-core { display: flex; align-items: center; gap: 8px; }
.nav-core a { color: #EEF2FF; text-decoration: none; border-radius: 999px; padding: 8px 12px; font-size: 15px; transition: .25s 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: 12px; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 24px; border-radius: 999px; background: var(--gradient); color: #fff; text-decoration: none; font-weight: 700; box-shadow: 0 14px 32px rgba(91,108,255,0.22); transition: transform .25s ease, box-shadow .25s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 36px rgba(91,108,255,.28); }
.secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 22px; border: 1px solid rgba(91,108,255,.28); border-radius: 999px; color: var(--brand); background: rgba(255,255,255,.82); text-decoration: none; font-weight: 700; }
.menu-button { width: 46px; height: 46px; border: 1px solid rgba(255,255,255,.16); border-radius: 50%; 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: 19px; height: 2px; background: #fff; border-radius: 2px; }
.menu-button-mobile { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(6,10,24,.58); opacity: 0; visibility: hidden; transition: .3s ease; }
.drawer-overlay.show { opacity: 1; visibility: visible; }
.site-drawer { position: fixed; z-index: 10001; top: 0; right: 0; width: min(410px, 92vw); height: 100vh; padding: 24px; background: #fff; box-shadow: -20px 0 60px rgba(12,18,40,.24); transform: translateX(104%); transition: transform .35s ease; overflow-y: auto; }
.site-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.drawer-head .site-logo { color: var(--title); }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: #EEF1FF; color: var(--title); font-size: 28px; cursor: pointer; }
.drawer-intro { color: var(--muted); margin: 20px 0; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.drawer-nav a { display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; text-decoration: none; color: var(--ink); background: #F7F8FF; border: 1px solid transparent; border-radius: 14px; }
.drawer-nav a:hover, .drawer-nav a.active { border-color: var(--line); color: var(--brand); background: #F0F3FF; }
.drawer-note { margin-top: 20px; padding: 16px; border-radius: 16px; background: #FFF8E5; color: #725B1B; font-size: 13px; }
.container { 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: 12px; color: #A66C00; font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.section-kicker::before { content: ""; width: 26px; height: 3px; border-radius: 3px; background: var(--gradient); }
h1, h2, h3, .section-title { color: var(--title); margin-top: 0; line-height: 1.25; }
h1 { font-size: clamp(40px, 6vw, 76px); margin-bottom: 20px; }
h2 { font-size: clamp(30px, 4vw, 46px); margin-bottom: 18px; }
h3 { font-size: 21px; margin-bottom: 10px; }
p { margin-top: 0; }
.lead { color: var(--muted); font-size: 18px; max-width: 760px; }
.text-link { color: var(--brand); text-decoration: none; font-weight: 700; }
.text-link:hover { text-decoration: underline; }
.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 22px; }
.hero { position: relative; overflow: hidden; padding: 86px 0 70px; background: radial-gradient(circle at 18% 15%, rgba(122,92,255,.18), transparent 32%), radial-gradient(circle at 82% 12%, rgba(0,212,255,.19), transparent 28%), linear-gradient(135deg, #F8F6FF 0%, #EEF8FF 52%, #FFF8FC 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(2px); opacity: .65; }
.hero::before { width: 280px; height: 280px; right: -70px; top: 120px; background: rgba(255,200,87,.18); }
.hero::after { width: 180px; height: 180px; left: -60px; bottom: 20px; background: rgba(217,79,112,.12); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 54px; align-items: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: rgba(91,108,255,.1); color: var(--brand); font-weight: 700; font-size: 14px; }
.hero-subtitle { color: var(--brand-2); font-size: clamp(22px, 3vw, 34px); font-weight: 800; margin: 4px 0 18px; }
.hero-copy { color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 28px 0 24px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-points span { padding: 8px 12px; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: var(--ink); font-size: 13px; }
.hero-visual { position: relative; padding: 18px; border-radius: 34px; background: rgba(255,255,255,.58); border: 1px solid rgba(255,255,255,.9); box-shadow: 0 34px 80px rgba(56,68,143,.18); }
.hero-visual img { width: 100%; max-height: 560px; object-fit: contain; display: block; border-radius: 24px; }
.hero-float { position: absolute; min-width: 170px; padding: 14px 16px; border-radius: 18px; background: rgba(17,24,47,.93); color: #fff; box-shadow: 0 18px 44px rgba(17,24,47,.25); }
.hero-float strong { display: block; }
.hero-float small { color: #C8D1F0; }
.hero-float.one { left: -34px; bottom: 42px; }
.hero-float.two { right: -28px; top: 42px; background: rgba(255,255,255,.94); color: var(--title); }
.hero-float.two small { color: var(--muted); }
.highlight-strip { position: relative; z-index: 3; margin-top: -24px; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); overflow: hidden; }
.highlight-item { padding: 24px; background: #fff; border-right: 1px solid var(--line); }
.highlight-item:last-child { border-right: 0; }
.highlight-item strong { display: block; margin-bottom: 8px; color: var(--title); }
.highlight-item p { margin: 0; color: var(--muted); font-size: 14px; }
.capsule-wrap { display: flex; flex-wrap: wrap; gap: 12px; }
.capsule { flex: 1 1 205px; min-height: 118px; padding: 18px; border-radius: 18px; background: rgba(255,255,255,.76); border: 1px solid var(--line); text-decoration: none; transition: .25s ease; }
.capsule:hover { transform: translateY(-3px); background: #fff; box-shadow: 0 16px 36px rgba(25,43,91,.1); }
.capsule strong { display: block; color: var(--title); margin-bottom: 6px; }
.capsule span { display: block; color: var(--muted); font-size: 13px; line-height: 1.6; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: stretch; }
.media-panel { display: grid; grid-template-columns: .92fr 1.08fr; gap: 34px; align-items: center; padding: 34px; }
.media-panel.reverse { grid-template-columns: 1.08fr .92fr; }
.media-panel img, .content-img, .zone-card img, .app-section img, .hero-visual img { max-width: 100%; height: auto; object-fit: contain; }
.media-panel img { width: 100%; max-height: 420px; border-radius: 18px; }
.feature-list { display: grid; gap: 12px; margin: 22px 0; }
.feature-list div { display: flex; gap: 12px; align-items: flex-start; color: var(--muted); }
.feature-list b { flex: 0 0 26px; width: 26px; height: 26px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: #EEF1FF; color: var(--brand); }
.duo-card { overflow: hidden; padding: 0; }
.duo-card .image-wrap { padding: 20px 20px 0; }
.duo-card img { width: 100%; max-height: 290px; object-fit: contain; border-radius: 16px; background: #F6F8FF; }
.duo-card .card-body { padding: 26px; }
.duo-card p { color: var(--muted); }
.service-points { display: grid; gap: 8px; padding: 0; list-style: none; color: var(--ink); }
.service-points li::before { content: "•"; color: var(--brand); margin-right: 8px; font-weight: 900; }
.triple { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.triple .info-card { padding: 22px; }
.triple img { width: 100%; max-height: 220px; object-fit: contain; border-radius: 15px; background: #F8F9FF; margin-bottom: 18px; }
.safety-zone { background: linear-gradient(135deg, #131B38, #182449 56%, #113350); color: #EAF0FF; }
.safety-zone h2, .safety-zone h3 { color: #fff; }
.safety-zone p { color: #C7D2F2; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.safety-card { padding: 30px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); border-radius: 22px; }
.safety-card img { width: 100%; max-height: 280px; object-fit: contain; border-radius: 16px; margin-bottom: 20px; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-card { padding: 24px; }
.review-card .stars { color: #E39A00; letter-spacing: 2px; }
.review-card p { color: var(--muted); }
.review-card strong { color: var(--title); }
.faq-list { display: grid; gap: 14px; }
.faq-item { padding: 22px 24px; background: #fff; border: 1px solid var(--line); border-radius: 18px; }
.faq-item h3 { font-size: 18px; margin-bottom: 8px; }
.faq-item p { margin: 0; color: var(--muted); }
.notice { padding: 26px; border-radius: 22px; background: linear-gradient(135deg, #FFF8E5, #FFF0F6); border: 1px solid rgba(255,200,87,.4); }
.notice h2 { font-size: 28px; }
.notice p { margin-bottom: 0; color: #68583E; }
.inner-hero { padding: 70px 0 58px; background: radial-gradient(circle at 85% 18%, rgba(0,212,255,.16), transparent 30%), radial-gradient(circle at 20% 12%, rgba(122,92,255,.18), transparent 34%), linear-gradient(135deg, #F8F6FF, #EEF8FF); }
.inner-hero-grid { display: grid; grid-template-columns: 1fr .8fr; gap: 46px; align-items: center; }
.inner-hero h1 { font-size: clamp(38px, 5.6vw, 66px); }
.inner-hero img { width: 100%; max-height: 430px; object-fit: contain; border-radius: 26px; background: rgba(255,255,255,.58); padding: 18px; box-shadow: var(--shadow); }
.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 32px; align-items: start; }
.article-card { padding: 34px; }
.article-card p { color: #4E5872; }
.side-stack { display: grid; gap: 18px; position: sticky; top: 100px; }
.side-card { padding: 22px; }
.side-card a { display: block; padding: 10px 0; border-bottom: 1px solid #EDF0FA; color: var(--brand); text-decoration: none; }
.side-card a:last-child { border-bottom: 0; }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.feature-card { padding: 24px; }
.feature-card p { color: var(--muted); margin-bottom: 0; }
.step-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.step-card { padding: 22px; background: #fff; border: 1px solid var(--line); border-radius: 18px; }
.step-card span { width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--gradient); color: #fff; font-weight: 800; margin-bottom: 14px; }
.quote-card { padding: 30px; background: linear-gradient(135deg, #EFF8FF, #F5F0FF); border: 1px solid var(--line); border-radius: 22px; }
.quote-card blockquote { margin: 0; color: #46516C; font-size: 18px; }
.quote-card cite { display: block; margin-top: 14px; color: var(--brand); font-style: normal; font-weight: 700; }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 64px 0 0; }
.footer-inner { width: min(1200px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; }
.footer-brand p { color: #AEB9D8; max-width: 520px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.footer-links h3 { color: #fff; font-size: 16px; }
.footer-links a { display: block; color: #AEB9D8; text-decoration: none; margin: 8px 0; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { width: min(1200px, calc(100% - 40px)); margin: 44px auto 0; padding: 20px 0; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; gap: 20px; color: #8E9ABC; font-size: 13px; }
.footer-bottom p { margin: 0; }
.footer-bottom a { color: #C7D2F2; text-decoration: none; margin-left: 16px; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1024px) {
    .nav-core { display: none; }
    .menu-button-mobile { display: inline-flex; order: -1; }
    .menu-button-desktop { display: none; }
    .header-inner { display: grid; grid-template-columns: 1fr auto 1fr; }
    .header-inner > .site-logo { justify-self: center; }
    .header-actions { justify-self: end; }
    .hero-grid, .inner-hero-grid { grid-template-columns: 1fr; }
    .hero-copy { max-width: 780px; }
    .hero-visual { max-width: 760px; margin: 0 auto; }
    .highlight-grid { grid-template-columns: repeat(2, 1fr); }
    .highlight-item:nth-child(2) { border-right: 0; }
    .highlight-item:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
    .triple, .review-grid { grid-template-columns: repeat(2, 1fr); }
    .article-grid { grid-template-columns: 1fr; }
    .side-stack { position: static; grid-template-columns: repeat(2, 1fr); }
    .step-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
    body { padding-bottom: 72px; }
    .header-inner { min-height: 64px; padding: 0 14px; gap: 8px; }
    .site-logo img { max-width: 38px; max-height: 36px; }
    .site-logo strong { font-size: 16px; }
    .header-cta { min-height: 38px; padding: 0 14px; font-size: 13px; }
    .menu-button { width: 40px; height: 40px; }
    .container { width: min(100% - 28px, 1200px); }
    .section { padding: 62px 0; }
    .section-sm { padding: 42px 0; }
    h1 { font-size: 42px; }
    h2 { font-size: 31px; }
    .hero { padding: 58px 0 54px; }
    .hero-grid { gap: 34px; }
    .hero-subtitle { font-size: 24px; }
    .hero-float { display: none; }
    .hero-visual { padding: 10px; border-radius: 24px; }
    .highlight-strip { margin-top: -12px; }
    .highlight-grid { grid-template-columns: 1fr; }
    .highlight-item { border-right: 0; border-bottom: 1px solid var(--line); }
    .highlight-item:last-child { border-bottom: 0; }
    .split, .media-panel, .media-panel.reverse, .safety-grid, .feature-grid, .triple, .review-grid, .footer-inner, .footer-links, .side-stack { grid-template-columns: 1fr; }
    .media-panel { padding: 20px; }
    .triple { gap: 16px; }
    .step-grid { grid-template-columns: 1fr; }
    .article-card { padding: 24px; }
    .inner-hero { padding: 52px 0 44px; }
    .inner-hero h1 { font-size: 40px; }
    .drawer-nav { grid-template-columns: 1fr; }
    .footer-inner { gap: 34px; }
    .footer-bottom { display: block; padding-bottom: 26px; }
    .footer-bottom div { margin-top: 12px; }
    .footer-bottom a { margin: 0 14px 0 0; }
    .mobile-bottom-nav { position: fixed; z-index: 9000; left: 10px; right: 10px; bottom: calc(8px + env(safe-area-inset-bottom)); min-height: 58px; display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; padding: 6px; border: 1px solid rgba(255,255,255,.13); border-radius: 20px; background: rgba(11,16,36,.94); backdrop-filter: blur(14px); box-shadow: 0 18px 40px rgba(11,16,36,.3); }
    .mobile-bottom-nav a { color: #C7D2F2; text-decoration: none; text-align: center; font-size: 11px; line-height: 1.25; }
    .mobile-bottom-nav span { display: block; color: #fff; font-size: 19px; margin-bottom: 2px; }
}
@media (max-width: 420px) {
    .site-logo strong { display: none; }
    .hero-actions { display: grid; }
    .hero-actions a { width: 100%; }
    .capsule { flex-basis: 100%; }
}