:root {
    --bg: #F5F7FF;
    --nav: rgba(12,18,40,0.94);
    --title: #131A35;
    --brand: #5B6CFF;
    --deep: #16213E;
    --blue: #00D4FF;
    --gold: #FFC857;
    --rose: #D94F70;
    --purple: #7A5CFF;
    --text: #1F2740;
    --muted: #66708A;
    --soft: #9AA4BA;
    --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(--text); font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; line-height: 1.75; overflow-x: hidden; }
body.drawer-open { overflow: hidden; }
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
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(25,43,91,0.16); }
.header-inner { max-width: 1280px; min-height: 72px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.site-logo, .footer-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 800; letter-spacing: .02em; white-space: nowrap; }
.site-logo img { max-height: 44px; width: auto; }
.footer-logo img { max-height: 48px; width: auto; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 8px; flex: 1; }
.nav-core a { color: #EEF2FF; text-decoration: none; border-radius: 999px; padding: 8px 12px; font-size: 15px; white-space: nowrap; 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: 10px; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 10px 22px; border-radius: 999px; color: #fff; background: var(--gradient); 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 38px rgba(91,108,255,0.3); }
.menu-toggle { width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.2); border-radius: 14px; background: rgba(255,255,255,.08); display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; cursor: pointer; }
.menu-toggle span { width: 20px; height: 2px; border-radius: 2px; background: #fff; }
.mobile-menu-toggle { display: none; }
.drawer-mask { position: fixed; inset: 0; z-index: 10000; background: rgba(8,12,28,.58); opacity: 0; visibility: hidden; transition: .28s ease; }
.site-drawer { position: fixed; z-index: 10001; top: 0; right: 0; width: min(390px, 88vw); height: 100vh; padding: 24px; background: #fff; transform: translateX(105%); transition: transform .3s ease; overflow-y: auto; box-shadow: -20px 0 50px rgba(11,16,36,.2); }
.drawer-open .drawer-mask { opacity: 1; visibility: visible; }
.drawer-open .site-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid var(--line); color: var(--title); }
.drawer-close { border: 0; background: #EFF2FF; color: var(--title); width: 40px; height: 40px; border-radius: 50%; font-size: 28px; line-height: 1; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; padding: 22px 0; }
.drawer-nav a { padding: 12px 14px; border-radius: 14px; text-decoration: none; color: var(--text); background: #F6F8FF; border: 1px solid transparent; }
.drawer-nav a:hover { border-color: var(--line); color: var(--brand); }
.drawer-note { padding: 16px; border-radius: 16px; color: var(--muted); background: #FFF8E6; font-size: 14px; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 82px 0; }
.section-sm { padding: 52px 0; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 12px; color: var(--purple); font-weight: 800; letter-spacing: .08em; font-size: 14px; }
.section-kicker::before { content: ''; width: 28px; height: 3px; border-radius: 99px; background: var(--gradient); }
h1, h2, h3, .section-title { color: var(--title); line-height: 1.28; margin-top: 0; }
h1 { font-size: clamp(38px, 6vw, 72px); letter-spacing: -.04em; }
h2 { font-size: clamp(28px, 4vw, 44px); letter-spacing: -.025em; }
h3 { font-size: 21px; }
p { margin: 0 0 1em; }
.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; }
.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: 82px 0 72px; background: radial-gradient(circle at 12% 20%, rgba(122,92,255,.19), transparent 32%), radial-gradient(circle at 88% 16%, rgba(0,212,255,.19), transparent 30%), linear-gradient(135deg, #F4F0FF, #EAF7FF 52%, #FFF4FA); }
.hero::after { content: ''; position: absolute; width: 320px; height: 320px; border-radius: 50%; right: -120px; bottom: -180px; background: rgba(255,200,87,.18); filter: blur(6px); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 54px; align-items: center; position: relative; z-index: 1; }
.hero h1 { margin-bottom: 8px; }
.hero-subtitle { font-size: clamp(24px, 3vw, 38px); color: var(--deep); font-weight: 800; margin-bottom: 18px; }
.hero-copy { color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-top: 26px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero-points span { padding: 8px 13px; border-radius: 999px; background: rgba(255,255,255,.78); border: 1px solid var(--line); color: var(--deep); font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual img { width: 100%; height: auto; object-fit: contain; border-radius: 28px; box-shadow: 0 30px 70px rgba(49,58,115,.22); }
.floating-chip { position: absolute; padding: 12px 16px; border-radius: 16px; background: rgba(255,255,255,.9); box-shadow: var(--shadow); font-weight: 700; color: var(--deep); }
.floating-chip.one { left: -24px; bottom: 16%; }
.floating-chip.two { right: -18px; top: 14%; }
.highlight-strip { margin-top: -28px; position: relative; z-index: 2; }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; padding: 18px; border-radius: 26px; background: #fff; box-shadow: var(--shadow); border: 1px solid var(--line); }
.highlight-item { padding: 15px 16px; border-radius: 18px; background: linear-gradient(180deg, #F9FAFF, #F1F6FF); }
.highlight-item strong { color: var(--title); display: block; margin-bottom: 5px; }
.highlight-item p { color: var(--muted); font-size: 14px; margin: 0; line-height: 1.65; }
.channel-pills { display: flex; flex-wrap: wrap; gap: 12px; }
.channel-pill { flex: 1 1 190px; padding: 16px 18px; border-radius: 18px; background: #fff; border: 1px solid var(--line); text-decoration: none; transition: .25s ease; }
.channel-pill:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.channel-pill strong { color: var(--title); display: block; }
.channel-pill small { color: var(--muted); display: block; margin-top: 5px; line-height: 1.5; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.split.reverse .split-media { order: 2; }
.split-media img, .content-img { width: 100%; height: auto; object-fit: contain; border-radius: 24px; box-shadow: var(--shadow); }
.split-content { padding: 12px 0; }
.feature-list { display: grid; gap: 12px; margin: 22px 0; }
.feature-list div { padding: 14px 16px; border-radius: 16px; background: #fff; border: 1px solid var(--line); }
.feature-list strong { color: var(--title); }
.dual-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.triple-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.content-card { overflow: hidden; }
.content-card img { width: 100%; aspect-ratio: 16/10; object-fit: contain; background: #EEF3FF; }
.content-card .card-body { padding: 24px; }
.content-card p, .info-card p { color: var(--muted); }
.service-points { margin: 18px 0; padding: 0; list-style: none; display: grid; gap: 9px; }
.service-points li { position: relative; padding-left: 18px; color: var(--text); }
.service-points li::before { content: ''; position: absolute; left: 0; top: .72em; width: 7px; height: 7px; border-radius: 50%; background: var(--purple); }
.security-zone { padding: 32px; border-radius: 28px; background: linear-gradient(135deg, #11182F, #16213E); color: #EEF2FF; overflow: hidden; }
.security-zone h2, .security-zone h3 { color: #fff; }
.security-zone p { color: #C8D2EB; }
.security-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center; }
.security-visuals { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.security-visuals img { width: 100%; object-fit: contain; border-radius: 20px; background: rgba(255,255,255,.06); }
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.review-card { padding: 22px; }
.review-card p { color: var(--muted); }
.review-card strong { color: var(--title); }
.faq-list { display: grid; gap: 14px; }
details { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 18px 20px; }
summary { cursor: pointer; font-weight: 800; color: var(--title); }
details p { margin: 13px 0 0; color: var(--muted); }
.notice { padding: 24px; border-radius: 22px; background: linear-gradient(135deg, #FFF4D6, #EFF8FF); border: 1px solid rgba(255,200,87,.45); }
.notice h2, .notice h3 { margin-bottom: 10px; }
.inner-hero { position: relative; overflow: hidden; padding: 76px 0 62px; background: radial-gradient(circle at 16% 12%, rgba(122,92,255,.2), transparent 34%), radial-gradient(circle at 85% 18%, rgba(0,212,255,.17), transparent 34%), linear-gradient(135deg, #F5F0FF, #ECF8FF); }
.inner-hero-grid { display: grid; grid-template-columns: 1fr .78fr; gap: 44px; align-items: center; }
.inner-hero h1 { font-size: clamp(36px, 5vw, 58px); margin-bottom: 14px; }
.inner-hero img { width: 100%; max-height: 420px; object-fit: contain; border-radius: 26px; box-shadow: var(--shadow); background: rgba(255,255,255,.6); }
.breadcrumb { display: flex; gap: 7px; align-items: center; color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.breadcrumb a { color: var(--brand); text-decoration: none; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; align-items: start; }
.article-main { display: grid; gap: 22px; }
.article-section { padding: 28px; }
.article-section h2 { font-size: 28px; margin-bottom: 12px; }
.article-section p { color: var(--muted); }
.sidebar { position: sticky; top: 96px; display: grid; gap: 18px; }
.sidebar .info-card { padding: 22px; }
.link-list { display: grid; gap: 10px; }
.link-list a { padding: 10px 12px; border-radius: 12px; background: #F5F7FF; color: var(--brand); text-decoration: none; }
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { position: relative; padding: 18px 18px 18px 58px; border-radius: 18px; background: #F8FAFF; border: 1px solid var(--line); }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 17px; top: 17px; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--gradient); color: #fff; font-weight: 800; }
.quote-card { padding: 24px; border-left: 5px solid var(--purple); background: #fff; border-radius: 18px; box-shadow: var(--shadow); color: var(--muted); }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 64px 0 0; }
.footer-inner { width: min(1180px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: .9fr 1.5fr; gap: 60px; }
.footer-brand p { color: #AAB4CE; max-width: 420px; margin-top: 18px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.footer-links h3 { color: #fff; font-size: 16px; }
.footer-links a { display: block; color: #BFC8DE; text-decoration: none; margin: 8px 0; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 45px; padding: 20px; text-align: center; border-top: 1px solid rgba(255,255,255,.1); color: #9FAAC4; font-size: 14px; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1040px) {
    .nav-core { display: none; }
    .header-inner { gap: 12px; }
    .site-logo { margin-right: auto; }
    .hero-grid, .inner-hero-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .highlight-grid { grid-template-columns: repeat(2, 1fr); }
    .triple-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
    .article-layout { grid-template-columns: 1fr; }
    .sidebar { position: static; grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
    body { padding-bottom: 72px; }
    .header-inner { min-height: 64px; padding: 0 14px; }
    .mobile-menu-toggle { display: inline-flex; }
    .desktop-menu-toggle { display: none; }
    .site-logo { position: absolute; left: 50%; transform: translateX(-50%); margin: 0; }
    .site-logo span { display: none; }
    .site-logo img { max-height: 38px; }
    .header-actions { margin-left: auto; }
    .header-cta { min-height: 40px; padding: 8px 14px; font-size: 14px; }
    .container { width: min(100% - 28px, 1180px); }
    .section { padding: 58px 0; }
    .section-sm { padding: 38px 0; }
    .hero { padding: 52px 0 54px; }
    .hero-grid, .inner-hero-grid, .split, .security-grid, .footer-inner { grid-template-columns: 1fr; }
    .hero-visual { margin-top: 12px; }
    .floating-chip { display: none; }
    .highlight-strip { margin-top: -20px; }
    .highlight-grid, .dual-grid, .triple-grid, .review-grid, .sidebar { grid-template-columns: 1fr; }
    .split.reverse .split-media { order: 0; }
    .security-zone { padding: 24px; }
    .article-section { padding: 22px; }
    .footer-inner { gap: 34px; }
    .footer-links { grid-template-columns: repeat(2, 1fr); }
    .mobile-bottom-nav { position: fixed; z-index: 9998; left: 0; right: 0; bottom: 0; height: 66px; display: grid; grid-template-columns: repeat(4, 1fr); background: rgba(255,255,255,.96); border-top: 1px solid var(--line); box-shadow: 0 -8px 30px rgba(25,43,91,.12); backdrop-filter: blur(12px); }
    .mobile-bottom-nav a { display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--muted); text-decoration: none; font-size: 12px; }
    .mobile-bottom-nav span { font-size: 20px; color: var(--brand); line-height: 1; margin-bottom: 4px; }
}
@media (max-width: 480px) {
    .footer-links { grid-template-columns: 1fr; }
    .drawer-nav { grid-template-columns: 1fr; }
    .highlight-grid { grid-template-columns: 1fr; }
    .hero-actions .main-btn { width: 100%; }
    .security-visuals { grid-template-columns: 1fr; }
}