:root {
    --bg: #F5F7FF;
    --nav: rgba(12, 18, 40, 0.94);
    --title: #131A35;
    --primary: #5B6CFF;
    --deep: #16213E;
    --cyan: #00D4FF;
    --gold: #FFC857;
    --rose: #D94F70;
    --lavender: #7A5CFF;
    --text: #1F2740;
    --muted: #66708A;
    --soft: #9AA4BA;
    --card: #FFFFFF;
    --dark-card: #11182F;
    --line: rgba(91, 108, 255, 0.18);
    --shadow: 0 20px 46px rgba(25, 43, 91, 0.14);
    --radius: 24px;
    --max: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, input, textarea { font: inherit; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 12000; padding: 10px 16px; border-radius: 10px; background: #fff; color: var(--primary); text-decoration: none; }
.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;
    margin: 0 auto;
    min-height: 72px;
    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; flex: 0 0 auto; }
.site-logo img { width: 44px; height: 44px; object-fit: contain; border-radius: 13px; }
.site-logo strong { font-size: 1.32rem; letter-spacing: .04em; }
.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; white-space: nowrap; font-size: .95rem; }
.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; }
.main-btn, .secondary-btn {
    display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 24px; border-radius: 999px; text-decoration: none; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn { background: linear-gradient(135deg, #5B6CFF 0%, #7A5CFF 48%, #00D4FF 100%); color: #fff; box-shadow: 0 14px 32px rgba(91, 108, 255, .22); }
.main-btn:hover, .secondary-btn:hover { transform: translateY(-2px); }
.compact-btn { min-height: 42px; padding: 0 20px; font-size: .94rem; }
.secondary-btn { border: 1px solid rgba(91, 108, 255, .3); background: rgba(255,255,255,.88); color: var(--primary); }
.icon-button { width: 44px; height: 44px; border: 0; border-radius: 14px; background: rgba(255,255,255,.1); display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; cursor: pointer; }
.icon-button span { width: 20px; height: 2px; border-radius: 10px; background: #fff; }
.mobile-menu-toggle { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(5, 8, 22, .62); opacity: 0; transition: opacity .22s ease; }
.drawer-overlay.show { opacity: 1; }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(390px, 92vw); height: 100dvh; overflow-y: auto; padding: 22px; background: #fff; box-shadow: -24px 0 54px rgba(8, 16, 46, .2); transform: translateX(105%); transition: transform .24s ease; }
.site-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.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: 1.8rem; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.drawer-nav a { display: flex; align-items: center; justify-content: space-between; min-height: 52px; padding: 0 15px; border-radius: 15px; background: #F5F7FF; border: 1px solid var(--line); color: var(--text); text-decoration: none; }
.drawer-nav a:hover, .drawer-nav a.active { background: #EBEEFF; color: var(--primary); }
.drawer-nav b { color: var(--lavender); }
.drawer-note { margin-top: 20px; padding: 18px; border-radius: 18px; background: linear-gradient(135deg, #16213E, #252C58); color: #EEF2FF; }
.drawer-note p { margin: 6px 0 0; color: #C8D0EE; font-size: .9rem; }
main { min-height: 65vh; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.section { padding: 88px 0; }
.section-sm { padding: 54px 0; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; color: #8B6500; background: #FFF4D6; border-radius: 999px; padding: 5px 12px; font-size: .83rem; font-weight: 800; letter-spacing: .05em; }
.section-title, h1, h2, h3 { color: var(--title); line-height: 1.25; }
.section-title { margin: 14px 0 14px; font-size: clamp(2rem, 4vw, 3.1rem); }
.section-lead { max-width: 780px; margin: 0; color: var(--muted); font-size: 1.06rem; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin-bottom: 34px; }
.section-head .text-link { flex: 0 0 auto; }
.text-link { color: var(--primary); text-decoration: none; font-weight: 700; }
.text-link:hover { text-decoration: underline; }
.hero { position: relative; overflow: hidden; padding: 86px 0 74px; background: radial-gradient(circle at 12% 20%, rgba(122,92,255,.18), transparent 34%), radial-gradient(circle at 88% 14%, rgba(0,212,255,.18), transparent 30%), linear-gradient(140deg, #F9F7FF 0%, #EAF7FF 52%, #FFF3FA 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(4px); pointer-events: none; }
.hero::before { width: 210px; height: 210px; right: 8%; top: 8%; background: rgba(255,200,87,.18); }
.hero::after { width: 160px; height: 160px; left: -40px; bottom: 20px; background: rgba(217,79,112,.11); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.06fr .94fr; align-items: center; gap: 62px; }
.hero-copy h1 { margin: 14px 0 10px; font-size: clamp(4rem, 10vw, 7.2rem); letter-spacing: -.06em; }
.hero-subtitle { margin: 0 0 18px; color: var(--deep); font-size: clamp(1.55rem, 3.2vw, 2.45rem); font-weight: 800; line-height: 1.35; }
.hero-copy > p { color: var(--muted); font-size: 1.04rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }
.hero-points li { padding: 7px 12px; border-radius: 999px; color: var(--deep); background: rgba(255,255,255,.8); border: 1px solid rgba(91,108,255,.15); font-size: .9rem; }
.hero-visual { position: relative; min-width: 0; }
.hero-visual::before { content: ""; position: absolute; inset: 8% -4% -5% 9%; border-radius: 38px; background: linear-gradient(135deg, rgba(91,108,255,.3), rgba(0,212,255,.22)); transform: rotate(3deg); }
.hero-visual img { position: relative; width: 100%; max-height: 610px; object-fit: contain; border-radius: 34px; filter: drop-shadow(0 28px 35px rgba(27,44,95,.2)); }
.highlight-strip { position: relative; z-index: 2; margin-top: -18px; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.highlight-item, .card, .zone-card, .info-card, .review-card, .faq-item { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: var(--radius); }
.highlight-item { padding: 22px; }
.highlight-item h2 { margin: 0 0 8px; font-size: 1.05rem; }
.highlight-item p { margin: 0; color: var(--muted); font-size: .92rem; }
.channel-pills { display: flex; flex-wrap: wrap; gap: 12px; }
.channel-pill { flex: 1 1 210px; padding: 16px 18px; border-radius: 18px; background: rgba(255,255,255,.88); border: 1px solid var(--line); text-decoration: none; }
.channel-pill strong { display: block; color: var(--title); margin-bottom: 3px; }
.channel-pill span { color: var(--muted); font-size: .88rem; }
.split-section { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 54px; }
.split-section.reverse .media-frame { order: 2; }
.media-frame { border-radius: 30px; padding: 18px; background: linear-gradient(145deg, #E9E9FF, #E9FAFF); box-shadow: var(--shadow); }
.media-frame img { width: 100%; max-height: 520px; object-fit: contain; border-radius: 22px; background: #fff; }
.media-thumbs { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.media-thumbs img { width: 100%; height: 150px; object-fit: contain; background: rgba(255,255,255,.9); }
.prose h2 { margin: 14px 0; font-size: clamp(1.9rem, 3.2vw, 2.7rem); }
.prose p { color: var(--muted); }
.check-list { display: grid; gap: 12px; margin: 24px 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 30px; color: var(--text); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; background: #E9ECFF; color: var(--primary); font-size: .78rem; font-weight: 900; }
.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 img { width: 100%; aspect-ratio: 16 / 10; object-fit: contain; background: linear-gradient(145deg, #F4F0FF, #ECFAFF); }
.zone-body { padding: 26px; }
.zone-body h3 { margin: 0 0 10px; font-size: 1.45rem; }
.zone-body p { color: var(--muted); }
.mini-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 18px 0; }
.mini-points span { padding: 8px 10px; border-radius: 12px; background: #F4F6FF; color: var(--deep); font-size: .84rem; text-align: center; }
.dark-section { background: radial-gradient(circle at top right, rgba(0,212,255,.16), transparent 35%), linear-gradient(145deg, #0E142A, #17203E); color: #EEF2FF; }
.dark-section h2, .dark-section h3, .dark-section .section-title { color: #fff; }
.dark-section .section-lead, .dark-section p { color: #C8D0E8; }
.security-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 32px; }
.security-card { display: grid; grid-template-columns: 180px 1fr; gap: 24px; align-items: center; padding: 24px; border-radius: 24px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); }
.security-card img { width: 100%; height: 160px; object-fit: contain; }
.review-card { padding: 24px; }
.review-card p { margin: 0 0 14px; color: var(--muted); }
.review-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: .86rem; }
.review-meta strong { color: var(--title); }
.review-meta span { color: var(--primary); }
.faq-list { display: grid; gap: 14px; }
.faq-item { padding: 22px 24px; }
.faq-item h3 { margin: 0 0 8px; font-size: 1.05rem; }
.faq-item p { margin: 0; color: var(--muted); }
.notice-band { border-radius: 30px; padding: 34px; background: linear-gradient(135deg, #FFF4D6, #F5ECFF 50%, #EAF7FF); border: 1px solid rgba(255,200,87,.35); }
.notice-band h2 { margin-top: 0; }
.notice-band p { margin-bottom: 0; color: var(--muted); }
.page-hero { padding: 74px 0; background: radial-gradient(circle at 85% 20%, rgba(0,212,255,.18), transparent 30%), radial-gradient(circle at 10% 30%, rgba(122,92,255,.16), transparent 32%), linear-gradient(145deg, #F9F7FF, #EAF7FF); }
.page-hero-grid { display: grid; grid-template-columns: 1fr .82fr; align-items: center; gap: 54px; }
.page-hero h1 { margin: 14px 0; font-size: clamp(2.7rem, 5.5vw, 4.6rem); }
.page-hero p { color: var(--muted); font-size: 1.06rem; }
.page-hero img { width: 100%; max-height: 430px; object-fit: contain; border-radius: 30px; filter: drop-shadow(0 25px 30px rgba(27,44,95,.18)); }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 34px; align-items: start; }
.article-main { display: grid; gap: 22px; }
.content-block { padding: 30px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 14px 34px rgba(25,43,91,.09); }
.content-block h2 { margin: 0 0 14px; font-size: 1.65rem; }
.content-block p:last-child { margin-bottom: 0; }
.content-block p { color: var(--muted); }
.side-panel { position: sticky; top: 96px; display: grid; gap: 18px; }
.side-card { padding: 24px; border-radius: 22px; background: #fff; border: 1px solid var(--line); box-shadow: 0 14px 34px rgba(25,43,91,.09); }
.side-card h2 { margin-top: 0; font-size: 1.25rem; }
.side-links { display: grid; gap: 10px; }
.side-links a { padding: 10px 12px; border-radius: 12px; background: #F4F6FF; color: var(--primary); text-decoration: none; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.service-card { padding: 24px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
.service-card h3 { margin-top: 0; }
.service-card p { color: var(--muted); }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step { counter-increment: step; padding: 25px; border-radius: 20px; background: #fff; border: 1px solid var(--line); }
.step::before { content: "0" counter(step); display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; margin-bottom: 12px; border-radius: 14px; background: #ECEEFF; color: var(--primary); font-weight: 900; }
.step h3 { margin: 0 0 8px; }
.step p { margin: 0; color: var(--muted); }
.quote-card { padding: 28px; border-radius: 24px; background: linear-gradient(140deg, #151C38, #242B54); color: #EEF2FF; }
.quote-card blockquote { margin: 0 0 14px; font-size: 1.08rem; }
.quote-card cite { color: #AEB9DE; font-style: normal; }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 62px 0 20px; }
.footer-inner { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1fr 2fr; gap: 64px; }
.footer-brand p { max-width: 430px; color: #AEB9D6; }
.footer-logo { margin-bottom: 16px; }
.footer-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.footer-links h2 { margin: 0 0 14px; color: #fff; font-size: 1rem; }
.footer-links a { display: block; margin: 8px 0; color: #BFC8E4; text-decoration: none; font-size: .92rem; }
.footer-links a:hover { color: #fff; }
.footer-bottom { width: min(var(--max), calc(100% - 40px)); margin: 38px auto 0; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; gap: 20px; color: #8E99BA; font-size: .82rem; }
.footer-bottom p { margin: 0; }
.mobile-tabbar { display: none; }
@media (max-width: 1080px) {
    .nav-core { display: none; }
    .hero-grid, .page-hero-grid { gap: 36px; }
    .highlight-grid, .four-col { grid-template-columns: repeat(2, 1fr); }
    .three-col, .service-grid, .steps { grid-template-columns: repeat(2, 1fr); }
    .article-layout { grid-template-columns: 1fr; }
    .side-panel { position: static; grid-template-columns: 1fr 1fr; }
    .footer-inner { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 760px) {
    body { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
    .header-inner { min-height: 64px; padding: 0 12px; gap: 8px; }
    .site-logo img { width: 38px; height: 38px; }
    .site-logo strong { font-size: 1.12rem; }
    .mobile-menu-toggle { display: inline-flex; }
    .desktop-menu-toggle { display: none; }
    .header-actions .compact-btn { min-height: 38px; padding: 0 14px; font-size: .84rem; }
    .hero { padding: 58px 0 48px; }
    .hero-grid, .page-hero-grid, .split-section { grid-template-columns: 1fr; gap: 32px; }
    .hero-copy h1 { font-size: 4.2rem; }
    .hero-visual { max-width: 560px; margin: 0 auto; }
    .page-hero { padding: 54px 0; }
    .page-hero img { max-height: 340px; }
    .section { padding: 64px 0; }
    .section-sm { padding: 42px 0; }
    .section-head { align-items: start; flex-direction: column; }
    .highlight-grid, .two-col, .three-col, .four-col, .service-grid, .steps, .security-grid { grid-template-columns: 1fr; }
    .split-section.reverse .media-frame { order: 0; }
    .security-card { grid-template-columns: 120px 1fr; }
    .mini-points { grid-template-columns: 1fr; }
    .side-panel { grid-template-columns: 1fr; }
    .drawer-nav { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: repeat(2, 1fr); }
    .footer-bottom { flex-direction: column; }
    .mobile-tabbar { position: fixed; left: 10px; right: 10px; bottom: calc(8px + env(safe-area-inset-bottom)); z-index: 9000; display: grid; grid-template-columns: repeat(4, 1fr); min-height: 62px; padding: 6px; border-radius: 20px; background: rgba(11,16,36,.94); backdrop-filter: blur(16px); box-shadow: 0 15px 34px rgba(0,0,0,.24); }
    .mobile-tabbar a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; border-radius: 14px; color: #CAD2EA; text-decoration: none; font-size: .72rem; }
    .mobile-tabbar a span { font-size: 1.14rem; line-height: 1; }
    .mobile-tabbar a.active { color: #fff; background: rgba(91,108,255,.35); }
}
@media (max-width: 480px) {
    .container { width: min(100% - 28px, var(--max)); }
    .header-inner .site-logo strong { display: none; }
    .hero-actions { display: grid; }
    .hero-actions a { width: 100%; }
    .highlight-grid { grid-template-columns: 1fr; }
    .security-card { grid-template-columns: 1fr; }
    .security-card img { height: 190px; }
    .footer-links { grid-template-columns: 1fr 1fr; gap: 16px; }
    .content-block, .side-card { padding: 22px; }
    .notice-band { padding: 26px; }
}