:root {
    --bg: #F5F7FF;
    --ink: #1F2740;
    --muted: #66708A;
    --soft: #9AA4BA;
    --title: #131A35;
    --brand: #5B6CFF;
    --brand-2: #7A5CFF;
    --cyan: #00D4FF;
    --gold: #FFC857;
    --rose: #D94F70;
    --navy: #16213E;
    --card: #FFFFFF;
    --line: rgba(91, 108, 255, 0.18);
    --shadow: 0 20px 46px rgba(25, 43, 91, 0.14);
    --radius: 24px;
    --container: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; }
img { max-width: 100%; height: auto; }
button, input, textarea { font: inherit; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 12000; background: #fff; color: var(--title); padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 9999;
    background: rgba(12, 18, 40, 0.94);
    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 20px;
    display: flex;
    align-items: center;
    gap: 22px;
}
.site-logo, .footer-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.site-logo { flex: 0 0 auto; color: #fff; }
.site-logo img { width: 42px; height: 42px; object-fit: contain; display: block; }
.site-logo strong { font-size: 20px; letter-spacing: .04em; white-space: nowrap; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 6px; margin-left: auto; }
.nav-core a { color: #EEF2FF; text-decoration: none; border-radius: 999px; padding: 8px 12px; font-size: 15px; white-space: nowrap; }
.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; margin-left: auto; }
.main-btn, .secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 22px;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 700;
    transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn { color: #fff; background: linear-gradient(135deg, #5B6CFF 0%, #7A5CFF 48%, #00D4FF 100%); box-shadow: 0 14px 32px rgba(91, 108, 255, .22); }
.main-btn:hover, .secondary-btn:hover { transform: translateY(-2px); }
.secondary-btn { color: var(--brand); background: #fff; border: 1px solid var(--line); }
.header-cta { min-height: 40px; padding: 0 18px; font-size: 14px; }
.menu-button { width: 42px; height: 42px; border: 1px solid rgba(255,255,255,.18); border-radius: 13px; background: rgba(255,255,255,.08); cursor: pointer; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; }
.menu-button span { width: 18px; height: 2px; background: #fff; border-radius: 2px; }
.mobile-menu-button { display: none; }
.drawer-mask { position: fixed; inset: 0; z-index: 10000; background: rgba(8, 12, 30, .56); backdrop-filter: blur(3px); }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(390px, 92vw); height: 100vh; padding: 24px; background: #fff; box-shadow: -24px 0 70px rgba(11,16,36,.24); transform: translateX(105%); transition: transform .28s ease; overflow-y: auto; }
.site-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.drawer-brand { display: flex; align-items: center; gap: 10px; color: var(--title); font-weight: 800; font-size: 20px; }
.drawer-brand img { width: 42px; height: 42px; object-fit: contain; }
.drawer-close { border: 0; background: #EFF2FF; color: var(--title); width: 40px; height: 40px; border-radius: 50%; font-size: 27px; cursor: pointer; }
.drawer-intro { color: var(--muted); margin: 20px 0; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.drawer-nav a { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 11px 13px; border: 1px solid var(--line); border-radius: 14px; text-decoration: none; color: var(--title); background: #FBFCFF; }
.drawer-nav a:hover { border-color: var(--brand); color: var(--brand); }
.drawer-safe { margin-top: 22px; padding: 18px; border-radius: 18px; background: linear-gradient(135deg, #EFF8FF, #FFF4FA); }
.drawer-safe strong { color: var(--title); }
.drawer-safe p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
main { display: block; }
.container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
.section { padding: 86px 0; }
.section-tight { padding: 58px 0; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--brand); font-weight: 800; letter-spacing: .08em; font-size: 13px; text-transform: uppercase; }
.section-kicker::before { content: ""; width: 28px; height: 3px; border-radius: 4px; background: linear-gradient(90deg, var(--brand), var(--cyan)); }
h1, h2, h3, .section-title { color: var(--title); line-height: 1.25; margin-top: 0; }
h1 { font-size: clamp(42px, 6vw, 78px); margin-bottom: 22px; letter-spacing: -.035em; }
h2 { font-size: clamp(30px, 4vw, 48px); margin-bottom: 18px; }
h3 { font-size: 21px; margin-bottom: 10px; }
p { margin-top: 0; }
.lead { font-size: 18px; color: var(--muted); max-width: 760px; }
.text-link { color: var(--brand); text-decoration: none; font-weight: 700; }
.text-link:hover { text-decoration: underline; }
.hero { position: relative; overflow: hidden; padding: 80px 0 72px; background: radial-gradient(circle at 15% 20%, rgba(122,92,255,.16), transparent 32%), radial-gradient(circle at 82% 22%, rgba(0,212,255,.16), transparent 28%), linear-gradient(135deg, #F9F6FF 0%, #EDF8FF 56%, #FFF5FA 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(2px); pointer-events: none; }
.hero::before { width: 260px; height: 260px; right: -90px; top: 30px; background: rgba(217,79,112,.10); }
.hero::after { width: 190px; height: 190px; left: -70px; bottom: -30px; background: rgba(91,108,255,.12); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 56px; }
.hero-copy .section-kicker { margin-bottom: 18px; }
.hero-copy h1 span { display: block; color: transparent; background: linear-gradient(135deg, var(--brand), var(--brand-2) 55%, var(--cyan)); -webkit-background-clip: text; background-clip: text; }
.hero-subtitle { font-size: clamp(22px, 3vw, 34px); color: var(--navy); font-weight: 800; margin-bottom: 16px; }
.hero-copy p { color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 24px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 0; list-style: none; }
.hero-points li { padding: 8px 13px; border-radius: 999px; background: rgba(255,255,255,.78); border: 1px solid var(--line); color: var(--title); font-size: 14px; }
.hero-visual { position: relative; padding: 18px; }
.hero-visual::before { content: ""; position: absolute; inset: 7% 4%; border-radius: 42px; background: linear-gradient(135deg, rgba(91,108,255,.20), rgba(0,212,255,.16)); transform: rotate(-4deg); }
.hero-visual img { position: relative; z-index: 1; width: 100%; max-height: 610px; object-fit: contain; filter: drop-shadow(0 30px 48px rgba(31,39,64,.20)); }
.highlight-strip { margin-top: -24px; position: relative; z-index: 3; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.highlight-item, .card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: var(--radius); }
.highlight-item { padding: 22px; }
.highlight-item strong { display: block; color: var(--title); margin-bottom: 7px; }
.highlight-item p { color: var(--muted); font-size: 14px; margin-bottom: 0; }
.icon-dot { width: 40px; height: 40px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 14px; color: #fff; font-weight: 900; background: linear-gradient(135deg, var(--brand), var(--cyan)); }
.channel-pills { display: flex; flex-wrap: wrap; gap: 10px; }
.channel-pill { flex: 1 1 190px; min-width: 0; padding: 15px 16px; border-radius: 18px; border: 1px solid var(--line); background: rgba(255,255,255,.82); text-decoration: none; }
.channel-pill strong { display: block; color: var(--title); }
.channel-pill span { display: block; color: var(--muted); font-size: 13px; margin-top: 4px; }
.channel-pill:hover { border-color: var(--brand); transform: translateY(-2px); }
.split { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 54px; }
.split.reverse .split-media { order: 2; }
.split-media img, .content-img, .zone-card img, .app-section img { width: 100%; max-height: 520px; object-fit: contain; border-radius: 24px; }
.split-media { padding: 22px; border-radius: 34px; background: linear-gradient(135deg, rgba(91,108,255,.10), rgba(0,212,255,.10)); }
.split-copy p { color: var(--muted); }
.feature-list { display: grid; gap: 12px; margin: 22px 0; }
.feature-row { display: grid; grid-template-columns: 38px 1fr; gap: 12px; align-items: start; }
.feature-row span { width: 38px; height: 38px; border-radius: 13px; display: grid; place-items: center; background: #EEF1FF; color: var(--brand); font-weight: 900; }
.feature-row strong { color: var(--title); }
.feature-row p { margin: 3px 0 0; font-size: 14px; }
.two-col, .three-col, .four-col { display: grid; gap: 22px; }
.two-col { grid-template-columns: repeat(2, 1fr); }
.three-col { grid-template-columns: repeat(3, 1fr); }
.four-col { grid-template-columns: repeat(4, 1fr); }
.zone-card { overflow: hidden; }
.zone-card .card-media { padding: 18px 18px 0; }
.zone-card .card-body { padding: 24px; }
.zone-card p, .info-card p, .review-card p, .card p { color: var(--muted); }
.zone-card ul, .info-card ul { margin: 16px 0 0; padding-left: 20px; color: var(--muted); }
.zone-card li, .info-card li { margin: 7px 0; }
.card { padding: 26px; }
.info-card { padding: 28px; }
.soft-blue { background: #EFF8FF; }
.soft-gold { background: #FFF9E8; }
.soft-pink { background: #FFF3F8; }
.dark-card { background: #11182F; color: #EEF2FF; border-color: rgba(255,255,255,.10); }
.dark-card h2, .dark-card h3, .dark-card strong { color: #fff; }
.dark-card p, .dark-card li { color: #C7D0E8; }
.security-band { position: relative; overflow: hidden; border-radius: 34px; padding: 44px; background: linear-gradient(135deg, #151D3B, #1B2D5A 58%, #284A70); box-shadow: var(--shadow); }
.security-band::after { content: ""; position: absolute; width: 260px; height: 260px; border-radius: 50%; right: -80px; bottom: -120px; background: rgba(0,212,255,.16); }
.security-grid { position: relative; z-index: 1; display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: 36px; }
.security-grid h2, .security-grid h3 { color: #fff; }
.security-grid p, .security-grid li { color: #D6DDF0; }
.security-points { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.security-point { padding: 16px; border-radius: 17px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.11); }
.security-point strong { color: #fff; }
.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-card { padding: 25px; }
.review-card .stars { color: var(--gold); letter-spacing: 2px; }
.review-card strong { color: var(--title); }
.review-card small { color: var(--soft); }
.faq-list { display: grid; gap: 13px; }
details { border: 1px solid var(--line); background: #fff; border-radius: 18px; padding: 18px 20px; }
summary { cursor: pointer; color: var(--title); font-weight: 800; }
details p { margin: 14px 0 0; color: var(--muted); }
.notice { padding: 28px; border-radius: 24px; background: linear-gradient(135deg, #FFF4D6, #FFF7EC 45%, #F1F5FF); border: 1px solid rgba(255,200,87,.38); }
.notice h3 { margin-bottom: 8px; }
.notice p { margin-bottom: 0; color: var(--muted); }
.inner-hero { padding: 74px 0 62px; background: radial-gradient(circle at 85% 10%, rgba(0,212,255,.12), transparent 30%), linear-gradient(135deg, #F8F4FF, #ECF8FF); }
.inner-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 50px; }
.inner-hero h1 { font-size: clamp(38px, 5vw, 64px); }
.inner-hero p { color: var(--muted); font-size: 17px; }
.inner-hero img { width: 100%; max-height: 460px; object-fit: contain; filter: drop-shadow(0 26px 44px rgba(31,39,64,.18)); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--soft); margin-bottom: 20px; }
.breadcrumb a { color: var(--brand); text-decoration: none; }
.content-flow { display: grid; gap: 24px; }
.content-flow p { color: var(--muted); }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step { position: relative; padding: 26px; border-radius: 22px; background: #fff; border: 1px solid var(--line); }
.step::before { counter-increment: step; content: "0" counter(step); display: inline-flex; color: var(--brand); font-weight: 900; font-size: 13px; margin-bottom: 12px; }
.quote-box { padding: 32px; border-radius: 26px; background: linear-gradient(135deg, #EFF8FF, #F7F1FF); border: 1px solid var(--line); }
.quote-box blockquote { margin: 0; color: var(--title); font-size: 20px; font-weight: 700; }
.quote-box cite { display: block; margin-top: 12px; color: var(--muted); font-style: normal; }
.check-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.check-list li { position: relative; padding-left: 28px; color: var(--muted); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--brand); font-weight: 900; }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 64px 0 24px; }
.footer-inner { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.1fr 1.9fr; gap: 60px; }
.footer-logo { color: #fff; font-size: 22px; font-weight: 900; }
.footer-logo img { width: 44px; height: 44px; object-fit: contain; }
.footer-brand p { color: #AEB8D2; margin-top: 18px; max-width: 430px; }
.footer-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.footer-links strong { display: block; color: #fff; margin-bottom: 14px; }
.footer-links a { display: block; color: #AEB8D2; text-decoration: none; margin: 7px 0; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { width: min(var(--container), calc(100% - 40px)); margin: 42px auto 0; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.10); display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #8F9AB7; font-size: 13px; }
.footer-bottom p { margin: 0; }
.footer-bottom div { display: flex; gap: 14px; white-space: nowrap; }
.footer-bottom a { color: #BFC8DD; text-decoration: none; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1060px) {
    .nav-core { display: none; }
    .header-actions { margin-left: auto; }
    .highlight-grid, .four-col { grid-template-columns: repeat(2, 1fr); }
    .three-col, .reviews { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr; gap: 34px; }
}
@media (max-width: 800px) {
    body { padding-bottom: 72px; }
    .header-inner { min-height: 64px; padding: 0 12px; gap: 10px; justify-content: space-between; }
    .mobile-menu-button { display: inline-flex; order: 1; }
    .site-logo { order: 2; position: absolute; left: 50%; transform: translateX(-50%); }
    .site-logo strong { display: none; }
    .site-logo img { width: 38px; height: 38px; }
    .header-actions { order: 3; margin-left: auto; }
    .desktop-menu-button { display: none; }
    .header-cta { min-height: 36px; padding: 0 13px; font-size: 13px; }
    .hero, .inner-hero { padding: 58px 0 50px; }
    .hero-grid, .inner-hero-grid, .split, .security-grid { grid-template-columns: 1fr; gap: 34px; }
    .split.reverse .split-media { order: 0; }
    .hero-copy { text-align: center; }
    .hero-copy .lead { margin-left: auto; margin-right: auto; }
    .hero-actions, .hero-points { justify-content: center; }
    .hero-visual img { max-height: 440px; }
    .section { padding: 66px 0; }
    .section-tight { padding: 46px 0; }
    .two-col, .three-col, .reviews, .steps { grid-template-columns: 1fr; }
    .security-points { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: repeat(2, 1fr); }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
    .mobile-bottom-nav { position: fixed; left: 10px; right: 10px; bottom: 10px; z-index: 9000; min-height: 58px; display: grid; grid-template-columns: repeat(4, 1fr); align-items: center; padding: 7px; border-radius: 20px; background: rgba(11,16,36,.94); backdrop-filter: blur(12px); box-shadow: 0 12px 40px rgba(11,16,36,.28); }
    .mobile-bottom-nav a { color: #DCE3F7; text-decoration: none; text-align: center; font-size: 12px; line-height: 1.2; }
    .mobile-bottom-nav span { display: block; font-size: 18px; margin-bottom: 3px; color: var(--cyan); }
}
@media (max-width: 560px) {
    .container { width: min(100% - 28px, var(--container)); }
    h1 { font-size: 42px; }
    .hero-subtitle { font-size: 22px; }
    .highlight-grid, .four-col { grid-template-columns: 1fr; }
    .highlight-strip { margin-top: 16px; }
    .drawer-nav { grid-template-columns: 1fr; }
    .security-band { padding: 28px 22px; }
    .footer-links { grid-template-columns: 1fr 1fr; gap: 26px 16px; }
    .footer-bottom div { flex-wrap: wrap; white-space: normal; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}