:root {
    --bg: #F5F7FF;
    --nav: rgba(12,18,40,.94);
    --title: #131A35;
    --brand: #5B6CFF;
    --deep: #16213E;
    --cyan: #00D4FF;
    --gold: #FFC857;
    --rose: #D94F70;
    --purple: #7A5CFF;
    --text: #1F2740;
    --muted: #66708A;
    --soft: #9AA4BA;
    --card: #FFFFFF;
    --dark-card: #11182F;
    --line: 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;
    --max: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
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; }
button, input, textarea { font: inherit; }
.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,.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: 22px; }
.site-logo, .drawer-brand, .footer-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.site-logo img { width: 44px; height: 44px; object-fit: contain; border-radius: 13px; }
.site-logo strong { color: #fff; font-size: 23px; letter-spacing: .02em; }
.nav-core { display: flex; align-items: center; gap: 8px; flex: 1; justify-content: center; }
.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,.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: 46px; padding: 0 22px; border-radius: 999px; font-weight: 700; text-decoration: none; transition: transform .2s ease, box-shadow .2s ease; }
.main-btn { color: #fff; background: var(--gradient); box-shadow: 0 14px 32px rgba(91,108,255,.22); }
.secondary-btn { color: var(--brand); border: 1px solid var(--line); background: rgba(255,255,255,.9); }
.main-btn:hover, .secondary-btn:hover { transform: translateY(-2px); }
.menu-toggle { width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,.2); background: rgba(255,255,255,.07); display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; cursor: pointer; }
.menu-toggle span { width: 18px; height: 2px; background: #fff; border-radius: 2px; }
.menu-toggle-mobile { display: none; }
.drawer-overlay { position: fixed; inset: 0; background: rgba(5,9,25,.55); opacity: 0; visibility: hidden; z-index: 10000; transition: .25s ease; }
.site-drawer { position: fixed; top: 0; right: 0; width: min(390px, 92vw); height: 100dvh; padding: 24px; background: #fff; z-index: 10001; transform: translateX(102%); transition: .28s ease; overflow-y: auto; box-shadow: -20px 0 50px rgba(10,18,50,.24); }
.drawer-open .drawer-overlay { opacity: 1; visibility: visible; }
.drawer-open .site-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; }
.drawer-brand img, .footer-logo img { width: 42px; height: 42px; object-fit: contain; border-radius: 12px; }
.drawer-brand span { font-size: 22px; font-weight: 800; color: var(--title); }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: #EEF1FF; color: var(--title); font-size: 27px; cursor: pointer; }
.drawer-intro { color: var(--muted); margin: 18px 0; }
.drawer-nav { display: grid; gap: 8px; }
.drawer-nav a { display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; border-radius: 14px; text-decoration: none; color: var(--text); background: #F8F9FF; }
.drawer-nav a:hover, .drawer-nav a.active { background: #EBEEFF; color: var(--brand); }
.drawer-note { margin-top: 20px; padding: 15px; border-radius: 16px; color: #5A6380; background: #FFF7E1; font-size: 14px; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.section { padding: 82px 0; }
.section-sm { padding: 58px 0; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; color: var(--brand); letter-spacing: .08em; font-size: 13px; text-transform: uppercase; }
.section-kicker::before { content: ""; width: 28px; height: 2px; border-radius: 4px; background: var(--gradient); }
h1, h2, h3, .section-title { color: var(--title); line-height: 1.25; margin-top: 0; }
h1 { font-size: clamp(38px, 6vw, 76px); }
h2 { font-size: clamp(28px, 3vw, 42px); }
h3 { font-size: 21px; }
p { margin-top: 0; }
.lead { color: var(--muted); font-size: 18px; }
.hero { position: relative; overflow: hidden; padding: 88px 0 76px; background: radial-gradient(circle at 80% 20%, rgba(0,212,255,.18), transparent 30%), radial-gradient(circle at 15% 20%, rgba(217,79,112,.16), transparent 28%), linear-gradient(135deg, #F7F3FF 0%, #EAF7FF 52%, #FFF5FA 100%); }
.hero::after { content: ""; position: absolute; inset: auto -8% -42% auto; width: 420px; height: 420px; border-radius: 50%; border: 70px solid rgba(91,108,255,.07); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; gap: 58px; align-items: center; }
.hero-copy h1 { margin-bottom: 14px; }
.hero-copy .hero-subtitle { margin: 0 0 18px; color: var(--purple); font-weight: 800; font-size: clamp(22px, 3vw, 34px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 24px 0 0; list-style: none; }
.hero-points li { padding: 8px 13px; border-radius: 999px; background: rgba(255,255,255,.85); border: 1px solid var(--line); color: #4B5673; font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual img { display: block; width: 100%; max-height: 560px; object-fit: contain; filter: drop-shadow(0 28px 36px rgba(37,48,100,.18)); }
.hero-float { position: absolute; padding: 12px 16px; border-radius: 16px; background: rgba(255,255,255,.9); border: 1px solid rgba(255,255,255,.9); box-shadow: var(--shadow); font-weight: 700; color: var(--deep); }
.hero-float.one { left: -20px; top: 18%; }
.hero-float.two { right: -10px; bottom: 15%; }
.highlight-strip { margin-top: -25px; position: relative; z-index: 3; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.highlight-item { padding: 22px; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 20px; }
.highlight-item strong { display: block; color: var(--title); font-size: 18px; margin-bottom: 6px; }
.highlight-item p { margin: 0; color: var(--muted); font-size: 14px; }
.pill-nav { display: flex; flex-wrap: wrap; gap: 12px; }
.pill-nav a { flex: 1 1 210px; min-height: 96px; padding: 16px 18px; background: #fff; border: 1px solid var(--line); border-radius: 18px; text-decoration: none; box-shadow: 0 12px 30px rgba(25,43,91,.08); }
.pill-nav strong { display: block; color: var(--title); margin-bottom: 3px; }
.pill-nav span { color: var(--muted); font-size: 14px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; align-items: center; }
.split.reverse .media { order: 2; }
.media img, .content-img { width: 100%; max-height: 480px; object-fit: contain; border-radius: var(--radius); background: linear-gradient(145deg, #EBF7FF, #F7F0FF); box-shadow: var(--shadow); }
.copy-card { padding: 36px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.copy-card p { color: var(--muted); }
.text-link { color: var(--brand); font-weight: 800; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.feature-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 22px; }
.feature-card { padding: 26px; }
.feature-card .num { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 14px; background: #EEF0FF; color: var(--brand); font-weight: 900; margin-bottom: 16px; }
.feature-card p { color: var(--muted); margin-bottom: 0; }
.dual-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.zone-card { overflow: hidden; }
.zone-card img { width: 100%; aspect-ratio: 16/9; object-fit: contain; background: #F2F5FF; }
.zone-content { padding: 26px; }
.zone-content p { color: var(--muted); }
.mini-points { display: grid; gap: 10px; margin: 18px 0; padding: 0; list-style: none; }
.mini-points li { padding: 10px 12px; border-radius: 12px; background: #F7F8FF; color: #4F5873; }
.triple-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.info-card { padding: 24px; }
.info-card img { width: 100%; height: 190px; object-fit: contain; background: linear-gradient(145deg, #EEF8FF, #F8F0FF); border-radius: 18px; margin-bottom: 20px; }
.info-card p { color: var(--muted); }
.safety-band { background: linear-gradient(135deg, #101831 0%, #182348 55%, #23285A 100%); color: #EAF0FF; }
.safety-band h2, .safety-band h3 { color: #fff; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.safety-panel { padding: 30px; border-radius: 22px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.12); }
.safety-panel img { width: 100%; height: 230px; object-fit: contain; margin-bottom: 18px; }
.safety-panel p { color: #C9D2EA; }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.review-card { padding: 24px; }
.review-card p { color: #4E5874; }
.review-card strong { display: block; color: var(--brand); }
.faq-list { display: grid; gap: 12px; }
details { background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 10px 26px rgba(25,43,91,.07); }
summary { padding: 18px 22px; cursor: pointer; font-weight: 800; color: var(--title); }
details p { padding: 0 22px 20px; margin: 0; color: var(--muted); }
.notice { padding: 28px; border: 1px solid #F0D99C; background: #FFF8E6; border-radius: 22px; color: #66552D; }
.about-band { background: linear-gradient(135deg, #E9EEFF, #EEF9FF 55%, #FFF1F7); }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 66px 0 24px; }
.footer-inner { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.1fr 1.9fr; gap: 56px; }
.footer-logo span { color: #fff; font-size: 24px; font-weight: 900; }
.footer-brand p { color: #AEB8D4; max-width: 450px; }
.footer-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.footer-links h2 { font-size: 15px; color: #fff; margin-bottom: 14px; }
.footer-links a { display: block; color: #AEB8D4; text-decoration: none; margin: 8px 0; font-size: 14px; }
.footer-links a:hover { color: var(--cyan); }
.footer-bottom { width: min(var(--max), calc(100% - 40px)); margin: 42px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; gap: 20px; color: #8F9AB8; font-size: 13px; }
.mobile-tabbar { display: none; }
.page-hero { padding: 72px 0 60px; background: radial-gradient(circle at 15% 10%, rgba(122,92,255,.15), transparent 30%), radial-gradient(circle at 85% 20%, rgba(0,212,255,.14), transparent 30%), linear-gradient(135deg, #F8F6FF, #ECF7FF); }
.page-hero-grid { display: grid; grid-template-columns: 1.06fr .94fr; gap: 48px; align-items: center; }
.page-hero h1 { font-size: clamp(38px, 5vw, 62px); margin-bottom: 18px; }
.page-hero img { width: 100%; max-height: 430px; object-fit: contain; filter: drop-shadow(0 24px 30px rgba(36,48,102,.15)); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.breadcrumbs a { color: var(--brand); text-decoration: none; }
.article-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: 28px; align-items: start; }
.article-card { padding: 34px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.article-card p { color: #515C78; }
.article-card h2 { font-size: 30px; margin-top: 30px; }
.article-card h2:first-child { margin-top: 0; }
.side-stack { display: grid; gap: 18px; position: sticky; top: 98px; }
.side-card { padding: 24px; border-radius: 20px; background: #fff; border: 1px solid var(--line); box-shadow: 0 14px 34px rgba(25,43,91,.1); }
.side-card h3 { margin-bottom: 12px; }
.side-card p, .side-card li { color: var(--muted); font-size: 15px; }
.side-card ul { padding-left: 20px; margin-bottom: 0; }
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { position: relative; padding: 18px 20px 18px 68px; background: #fff; border: 1px solid var(--line); border-radius: 16px; }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 18px; top: 17px; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 12px; color: #fff; font-weight: 900; background: var(--gradient); }
.inline-reviews { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.inline-review { padding: 22px; border-radius: 18px; background: #F7F8FF; border: 1px solid var(--line); }
.inline-review p { margin-bottom: 8px; }
.contact-flow { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.contact-flow .card { padding: 24px; }
@media (max-width: 1050px) {
    .nav-core { display: none; }
    .menu-toggle-mobile { display: inline-flex; }
    .menu-toggle-desktop { display: none; }
    .site-logo { margin-right: auto; }
    .hero-grid, .page-hero-grid { gap: 34px; }
    .highlight-grid { grid-template-columns: repeat(2, 1fr); }
    .feature-list, .review-grid { grid-template-columns: repeat(2, 1fr); }
    .triple-grid { grid-template-columns: 1fr 1fr; }
    .footer-inner { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    body { padding-bottom: 74px; }
    .header-inner { min-height: 64px; padding: 0 12px; gap: 10px; }
    .site-logo { position: absolute; left: 50%; transform: translateX(-50%); margin: 0; }
    .site-logo img { width: 38px; height: 38px; }
    .site-logo strong { display: none; }
    .menu-toggle-desktop { display: none; }
    .header-cta { min-height: 38px; padding: 0 14px; font-size: 13px; }
    .container { width: min(100% - 28px, var(--max)); }
    .section { padding: 58px 0; }
    .section-sm { padding: 42px 0; }
    .hero { padding: 58px 0 52px; }
    .hero-grid, .page-hero-grid, .split, .dual-grid, .safety-grid, .article-grid { grid-template-columns: 1fr; }
    .hero-copy { text-align: center; }
    .hero-actions, .hero-points { justify-content: center; }
    .hero-visual { max-width: 520px; margin: 0 auto; }
    .hero-float { font-size: 12px; padding: 9px 12px; }
    .split.reverse .media { order: 0; }
    .highlight-strip { margin-top: 0; padding-top: 16px; }
    .highlight-grid, .feature-list, .review-grid, .triple-grid, .inline-reviews, .contact-flow { grid-template-columns: 1fr; }
    .copy-card, .article-card { padding: 26px 22px; }
    .side-stack { position: static; }
    .footer-links { grid-template-columns: repeat(2, 1fr); }
    .footer-bottom { flex-direction: column; }
    .mobile-tabbar { position: fixed; left: 10px; right: 10px; bottom: max(8px, env(safe-area-inset-bottom)); z-index: 9000; display: grid; grid-template-columns: repeat(4, 1fr); padding: 8px; border: 1px solid rgba(255,255,255,.8); border-radius: 20px; background: rgba(255,255,255,.94); backdrop-filter: blur(14px); box-shadow: 0 18px 40px rgba(18,28,70,.2); }
    .mobile-tabbar a { display: flex; flex-direction: column; align-items: center; gap: 2px; text-decoration: none; color: #7A829A; font-size: 12px; }
    .mobile-tabbar a span { font-size: 19px; line-height: 1.1; }
    .mobile-tabbar a.active { color: var(--brand); font-weight: 800; }
}
@media (max-width: 460px) {
    .highlight-grid { grid-template-columns: 1fr; }
    .footer-links { grid-template-columns: 1fr 1fr; gap: 18px; }
    .hero-float.one { left: 0; }
    .hero-float.two { right: 0; }
}