:root {
    --bg: #F5F7FF;
    --ink: #1F2740;
    --title: #131A35;
    --muted: #66708A;
    --soft: #9AA4BA;
    --brand: #5B6CFF;
    --brand-2: #7A5CFF;
    --cyan: #00D4FF;
    --gold: #FFC857;
    --rose: #D94F70;
    --nav: rgba(12,18,40,.94);
    --dark: #11182F;
    --footer: #0B1024;
    --card: #FFFFFF;
    --border: rgba(91,108,255,.18);
    --shadow: 0 20px 46px rgba(25,43,91,.14);
    --radius: 24px;
    --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: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif; line-height: 1.78; overflow-x: hidden; }
body.drawer-open { overflow: hidden; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-2); }
img { display: block; max-width: 100%; height: auto; }
button, a { -webkit-tap-highlight-color: transparent; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
main { min-height: 60vh; }
.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 { width: min(1280px, calc(100% - 32px)); margin: 0 auto; min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; flex: 0 0 auto; }
.site-logo:hover { color: #fff; }
.site-logo img { width: 44px; height: 44px; object-fit: contain; border-radius: 12px; }
.site-logo strong { font-size: 20px; letter-spacing: .04em; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 6px; }
.nav-core a { color: #EEF2FF; border-radius: 999px; padding: 8px 12px; white-space: nowrap; font-size: 15px; }
.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; flex: 0 0 auto; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 10px 24px; background: var(--gradient); color: #fff; border-radius: 999px; box-shadow: 0 14px 32px rgba(91,108,255,.22); font-weight: 700; transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 18px 36px rgba(91,108,255,.3); }
.main-btn.compact { min-height: 42px; padding: 8px 18px; font-size: 14px; }
.secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 10px 24px; border: 1px solid var(--border); border-radius: 999px; background: rgba(255,255,255,.85); color: var(--title); font-weight: 700; }
.menu-button { width: 42px; height: 42px; border: 0; border-radius: 14px; background: rgba(255,255,255,.1); display: inline-flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; cursor: pointer; }
.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(5,8,20,.58); opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s ease; }
.site-drawer { position: fixed; right: 0; top: 0; bottom: 0; z-index: 10001; width: min(390px, 88vw); padding: 24px; background: #fff; transform: translateX(105%); transition: transform .28s ease; overflow-y: auto; box-shadow: -20px 0 50px rgba(11,16,36,.18); }
.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; gap: 16px; }
.drawer-brand { display: inline-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; border-radius: 12px; }
.drawer-close { border: 0; background: #EEF1FF; color: var(--title); width: 40px; height: 40px; border-radius: 50%; font-size: 25px; cursor: pointer; }
.drawer-intro { color: var(--muted); margin: 20px 0; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; }
.drawer-nav a { display: flex; align-items: center; justify-content: space-between; padding: 12px 14px; border-radius: 14px; background: #F5F7FF; color: var(--ink); }
.drawer-nav a:hover, .drawer-nav a.active { background: #EAF7FF; color: var(--brand); }
.drawer-safe { margin-top: 20px; padding: 16px; border-radius: 16px; background: #FFF4D6; color: #6A5421; font-size: 13px; }
.hero { position: relative; isolation: isolate; overflow: hidden; padding: 82px 0 72px; background: radial-gradient(circle at 15% 20%,rgba(122,92,255,.16),transparent 26%), radial-gradient(circle at 85% 20%,rgba(0,212,255,.16),transparent 25%), linear-gradient(145deg,#F9F7FF 0%,#EEF8FF 52%,#FFF7FB 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(3px); z-index: -1; }
.hero::before { width: 220px; height: 220px; background: rgba(255,200,87,.18); left: -80px; bottom: -70px; }
.hero::after { width: 280px; height: 280px; background: rgba(217,79,112,.12); right: -120px; top: -80px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 58px; align-items: center; }
.eyebrow, .section-kicker { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; letter-spacing: .08em; font-weight: 800; color: var(--brand); text-transform: uppercase; }
.eyebrow::before, .section-kicker::before { content: ""; width: 24px; height: 3px; border-radius: 99px; background: var(--gradient); }
.hero h1 { margin: 12px 0 8px; color: var(--title); font-size: clamp(48px,7vw,82px); line-height: 1.04; letter-spacing: -.04em; }
.hero-subtitle { margin: 0 0 18px; font-size: clamp(24px,3vw,38px); color: var(--title); font-weight: 800; line-height: 1.3; }
.hero-copy { margin: 0; max-width: 690px; color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 0; list-style: none; }
.hero-points li { padding: 8px 13px; border: 1px solid rgba(91,108,255,.16); background: rgba(255,255,255,.76); border-radius: 999px; color: var(--title); font-size: 14px; }
.hero-visual { position: relative; padding: 22px; }
.hero-visual::before { content: ""; position: absolute; inset: 6% 0 0 8%; border-radius: 38px; background: linear-gradient(145deg,rgba(91,108,255,.16),rgba(0,212,255,.12)); transform: rotate(4deg); }
.hero-visual img { position: relative; width: 100%; max-height: 610px; object-fit: contain; filter: drop-shadow(0 30px 38px rgba(25,43,91,.2)); }
.floating-note { position: absolute; background: rgba(255,255,255,.92); box-shadow: var(--shadow); border: 1px solid var(--border); border-radius: 18px; padding: 12px 16px; font-size: 13px; color: var(--title); }
.floating-note.one { left: -10px; top: 18%; }
.floating-note.two { right: -4px; bottom: 12%; }
.highlight-strip { margin-top: -24px; position: relative; z-index: 2; }
.highlight-grid { display: grid; grid-template-columns: repeat(4,1fr); background: #fff; border: 1px solid var(--border); border-radius: 24px; box-shadow: var(--shadow); overflow: hidden; }
.highlight-item { padding: 24px; }
.highlight-item + .highlight-item { border-left: 1px solid var(--border); }
.highlight-item strong { color: var(--title); display: block; margin-bottom: 6px; }
.highlight-item p { color: var(--muted); margin: 0; font-size: 14px; line-height: 1.65; }
.section { padding: 78px 0; }
.section.tight { padding: 54px 0; }
.section.alt { background: #EFF8FF; }
.section.dark { background: var(--dark); color: #EEF2FF; }
.section-heading { max-width: 760px; margin-bottom: 30px; }
.section-heading.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-heading.center .section-kicker { justify-content: center; }
.section-heading h2, .page-hero h1 { color: var(--title); font-size: clamp(30px,4vw,48px); line-height: 1.2; margin: 10px 0 12px; }
.section-heading p { margin: 0; color: var(--muted); }
.dark .section-heading h2, .dark h2, .dark h3 { color: #fff; }
.dark .section-heading p, .dark p { color: #BAC4DB; }
.channel-pills { display: flex; flex-wrap: wrap; gap: 12px; }
.channel-pill { flex: 1 1 190px; min-height: 105px; padding: 16px 18px; border-radius: 18px; background: #fff; border: 1px solid var(--border); box-shadow: 0 12px 28px rgba(25,43,91,.08); }
.channel-pill strong { display: block; color: var(--title); margin-bottom: 4px; }
.channel-pill span { display: block; color: var(--muted); font-size: 13px; line-height: 1.55; }
.split { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 30px; align-items: center; }
.split.reverse .media { order: 2; }
.media-card, .content-card, .zone-card, .info-card, .review-card, .faq-item { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: var(--radius); }
.media-card { padding: 18px; overflow: hidden; }
.media-card img { width: 100%; max-height: 520px; object-fit: contain; border-radius: 18px; background: linear-gradient(145deg,#F2F0FF,#EBFAFF); }
.content-card { padding: 34px; }
.content-card h2, .content-card h3, .zone-card h3, .info-card h3 { color: var(--title); margin-top: 0; }
.content-card p, .zone-card p, .info-card p { color: var(--muted); }
.text-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.feature-list { display: grid; gap: 12px; padding: 0; margin: 22px 0; list-style: none; }
.feature-list li { position: relative; padding-left: 26px; color: var(--ink); }
.feature-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--brand); font-weight: 900; }
.two-cards { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 26px; }
.three-cards { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.zone-card { padding: 18px; overflow: hidden; }
.zone-card img { width: 100%; height: 240px; object-fit: contain; border-radius: 18px; background: linear-gradient(145deg,#F3F1FF,#ECFAFF); }
.zone-card-body { padding: 18px 8px 8px; }
.zone-card h3 { font-size: 24px; margin-bottom: 10px; }
.zone-card ul { padding-left: 18px; color: var(--muted); }
.info-card { padding: 28px; }
.info-card .number { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 14px; background: #EEF1FF; color: var(--brand); font-weight: 900; margin-bottom: 16px; }
.security-panel { display: grid; grid-template-columns: .9fr 1.1fr; gap: 30px; align-items: stretch; }
.security-images { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.security-images img { width: 100%; height: 100%; min-height: 280px; object-fit: contain; border-radius: 22px; background: #fff; padding: 12px; }
.security-copy { padding: 34px; border-radius: 26px; background: linear-gradient(145deg,#151E3C,#11182F); color: #EEF2FF; }
.security-copy h2 { color: #fff; }
.security-copy p { color: #BCC7DE; }
.review-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.review-card { padding: 24px; }
.review-card p { margin-top: 0; color: var(--ink); }
.review-card span { color: var(--muted); font-size: 13px; }
.faq-list { display: grid; gap: 14px; }
.faq-item { padding: 0 24px; box-shadow: 0 12px 28px rgba(25,43,91,.08); }
.faq-item summary { cursor: pointer; list-style: none; padding: 20px 34px 20px 0; color: var(--title); font-weight: 800; position: relative; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 0; top: 16px; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; background: #EEF1FF; color: var(--brand); }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { margin: 0; padding: 0 0 22px; color: var(--muted); }
.notice-box { padding: 28px; border-radius: 24px; background: #FFF4D6; border: 1px solid rgba(255,200,87,.55); color: #67501C; }
.notice-box h2, .notice-box h3 { margin-top: 0; color: #4A3916; }
.page-hero { padding: 70px 0 54px; background: radial-gradient(circle at 85% 10%,rgba(0,212,255,.15),transparent 30%), linear-gradient(145deg,#F8F5FF,#EDF9FF); }
.page-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 45px; align-items: center; }
.page-hero p { color: var(--muted); font-size: 17px; }
.page-hero img { width: 100%; max-height: 430px; object-fit: contain; filter: drop-shadow(0 25px 34px rgba(25,43,91,.18)); }
.breadcrumbs { font-size: 13px; color: var(--soft); margin-bottom: 12px; }
.breadcrumbs a { color: var(--muted); }
.article-grid { display: grid; grid-template-columns: minmax(0,1fr) 310px; gap: 30px; align-items: start; }
.article-main { display: grid; gap: 24px; }
.article-section { background: #fff; border: 1px solid var(--border); border-radius: 24px; padding: 32px; box-shadow: 0 14px 34px rgba(25,43,91,.08); }
.article-section h2 { color: var(--title); margin: 0 0 12px; font-size: 28px; }
.article-section h3 { color: var(--title); }
.article-section p { color: var(--muted); margin: 0 0 14px; }
.article-section p:last-child { margin-bottom: 0; }
.side-panel { position: sticky; top: 96px; display: grid; gap: 18px; }
.side-card { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 22px; box-shadow: 0 14px 30px rgba(25,43,91,.08); }
.side-card h2, .side-card h3 { margin-top: 0; color: var(--title); }
.side-card img { width: 100%; max-height: 260px; object-fit: contain; border-radius: 16px; background: #F3F7FF; }
.link-list { display: grid; gap: 8px; }
.link-list a { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px solid #EEF1F7; color: var(--ink); }
.link-list a:last-child { border-bottom: 0; }
.cta-panel { padding: 34px; border-radius: 26px; background: linear-gradient(135deg,#5B6CFF,#7A5CFF 52%,#00BFE6); color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.cta-panel h2 { color: #fff; margin: 0 0 8px; }
.cta-panel p { margin: 0; color: rgba(255,255,255,.86); }
.cta-panel .secondary-btn { background: #fff; border-color: #fff; color: var(--brand); flex: 0 0 auto; }
.site-footer { background: var(--footer); color: #EEF2FF; padding: 64px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3,1fr); gap: 34px; }
.footer-grid h2 { color: #fff; font-size: 16px; margin: 0 0 14px; }
.footer-grid a { color: #C9D2E8; display: block; margin: 7px 0; }
.footer-grid a:hover { color: #fff; }
.footer-brand p { color: #AEB8D0; max-width: 420px; }
.footer-logo { margin-bottom: 16px; }
.footer-notice { border-top: 1px solid rgba(255,255,255,.1); margin-top: 36px; padding-top: 22px; color: #98A4C1; font-size: 13px; }
.footer-notice p { margin: 6px 0; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1080px) {
    .nav-core { gap: 0; }
    .nav-core a { padding: 8px 9px; font-size: 14px; }
    .hero-grid, .page-hero-grid { gap: 34px; }
    .highlight-grid { grid-template-columns: repeat(2,1fr); }
    .highlight-item:nth-child(3) { border-left: 0; border-top: 1px solid var(--border); }
    .highlight-item:nth-child(4) { border-top: 1px solid var(--border); }
    .three-cards, .review-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .footer-grid { grid-template-columns: 1.4fr repeat(2,1fr); }
    .footer-grid > :last-child { grid-column: 2 / 4; display: grid; grid-template-columns: repeat(4,1fr); gap: 10px; }
    .footer-grid > :last-child h2 { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
    .header-inner { min-height: 66px; }
    .nav-core, .desktop-menu-button, .site-logo strong { display: none; }
    .mobile-menu-button { display: inline-flex; }
    .site-logo { position: absolute; left: 50%; transform: translateX(-50%); }
    .site-logo img { width: 40px; height: 40px; }
    .hero { padding-top: 58px; }
    .hero-grid, .page-hero-grid, .split, .security-panel, .article-grid { grid-template-columns: 1fr; }
    .hero-copy { font-size: 16px; }
    .hero-visual { max-width: 650px; margin: 0 auto; }
    .floating-note.one { left: 4%; }
    .floating-note.two { right: 4%; }
    .split.reverse .media { order: initial; }
    .security-images img { min-height: 220px; }
    .side-panel { position: static; grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 680px) {
    body { padding-bottom: 72px; }
    .container { width: min(100% - 26px,1180px); }
    .header-inner { width: calc(100% - 20px); gap: 8px; }
    .main-btn.compact { min-height: 38px; padding: 7px 13px; font-size: 13px; }
    .menu-button { width: 38px; height: 38px; }
    .hero { padding: 46px 0 58px; }
    .hero h1 { font-size: 50px; }
    .hero-subtitle { font-size: 25px; }
    .hero-actions { display: grid; grid-template-columns: 1fr 1fr; }
    .main-btn, .secondary-btn { min-height: 46px; padding: 9px 16px; }
    .hero-visual { padding: 8px 8px 30px; }
    .floating-note { font-size: 11px; padding: 8px 10px; }
    .highlight-strip { margin-top: -18px; }
    .highlight-grid { grid-template-columns: 1fr; }
    .highlight-item + .highlight-item, .highlight-item:nth-child(3), .highlight-item:nth-child(4) { border-left: 0; border-top: 1px solid var(--border); }
    .section { padding: 56px 0; }
    .section.tight { padding: 42px 0; }
    .section-heading h2, .page-hero h1 { font-size: 34px; }
    .two-cards, .three-cards, .review-grid, .security-images, .side-panel { grid-template-columns: 1fr; }
    .zone-card img { height: 210px; }
    .content-card, .article-section { padding: 24px; }
    .cta-panel { padding: 26px; display: block; }
    .cta-panel .secondary-btn { margin-top: 18px; }
    .drawer-nav { grid-template-columns: 1fr; }
    .site-drawer { width: min(360px,92vw); padding: 20px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-grid > :last-child { grid-column: 1 / -1; display: block; }
    .mobile-bottom-nav { position: fixed; left: 10px; right: 10px; bottom: 8px; z-index: 9000; display: grid; grid-template-columns: repeat(4,1fr); background: rgba(11,16,36,.94); backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,.12); border-radius: 20px; padding: 7px 5px calc(7px + env(safe-area-inset-bottom)); box-shadow: 0 16px 36px rgba(11,16,36,.28); }
    .mobile-bottom-nav a { display: grid; place-items: center; gap: 1px; color: #D7DDF0; font-size: 11px; line-height: 1.2; }
    .mobile-bottom-nav span { font-size: 18px; }
}