:root {
  --bg: #F5F7FF;
  --ink: #1F2740;
  --muted: #66708A;
  --soft: #9AA4BA;
  --title: #131A35;
  --brand: #5B6CFF;
  --brand-2: #7A5CFF;
  --cyan: #00D4FF;
  --gold: #FFC857;
  --rose: #D94F70;
  --deep: #16213E;
  --night: #0B1024;
  --card: #FFFFFF;
  --border: rgba(91,108,255,.18);
  --shadow: 0 20px 46px rgba(25,43,91,.14);
  --gradient: linear-gradient(135deg,#5B6CFF 0%,#7A5CFF 48%,#00D4FF 100%);
  --max: 1240px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); 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 { max-width: 100%; height: auto; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 12000; background: #fff; color: var(--brand); padding: 10px 16px; border-radius: 12px; transition: top .2s; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; width: 100%; z-index: 9999; background: rgba(12,18,40,.94); 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: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 28px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-size: 20px; font-weight: 800; letter-spacing: .03em; white-space: nowrap; }
.site-logo img { width: 42px; height: 42px; object-fit: contain; display: block; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 8px; min-width: 0; }
.nav-core a { color: #EEF2FF; text-decoration: none; border-radius: 999px; padding: 8px 12px; font-size: 15px; transition: .2s ease; 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; justify-content: flex-end; gap: 10px; }
.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, box-shadow .2s; }
.main-btn { background: var(--gradient); color: #fff; box-shadow: 0 14px 32px rgba(91,108,255,.22); }
.main-btn:hover, .secondary-btn:hover { transform: translateY(-2px); }
.secondary-btn { background: #fff; color: var(--brand); border: 1px solid var(--border); }
.menu-toggle { width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.18); border-radius: 14px; background: rgba(255,255,255,.08); display: grid; place-content: center; gap: 4px; cursor: pointer; }
.menu-toggle span { display: block; width: 19px; height: 2px; border-radius: 2px; background: #fff; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(6,10,24,.56); opacity: 0; transition: opacity .22s; }
.drawer-overlay.show { opacity: 1; }
.site-drawer { position: fixed; z-index: 10001; top: 0; right: 0; width: min(410px,90vw); height: 100dvh; padding: 22px; background: #fff; transform: translateX(105%); transition: transform .28s ease; overflow-y: auto; box-shadow: -24px 0 70px rgba(13,22,56,.24); }
.site-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; }
.drawer-brand { display: flex; align-items: center; gap: 10px; color: var(--title); text-decoration: none; font-weight: 800; font-size: 20px; }
.drawer-brand img { width: 42px; height: 42px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border-radius: 14px; border: 1px solid var(--border); background: #F6F7FF; color: var(--title); font-size: 28px; line-height: 1; 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; justify-content: space-between; align-items: center; text-decoration: none; color: var(--ink); background: #F7F8FF; border: 1px solid rgba(91,108,255,.1); border-radius: 14px; padding: 12px 14px; }
.drawer-nav a:hover, .drawer-nav a.active { color: var(--brand); background: #EFF1FF; border-color: var(--border); }
.drawer-safe { margin-top: 20px; border-radius: 18px; padding: 18px; background: linear-gradient(135deg,#EEF3FF,#EAFBFF); }
.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(--max),calc(100% - 40px)); margin: 0 auto; }
.section { padding: 88px 0; }
.section-sm { padding: 54px 0; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-kicker, .badge, .tag { display: inline-flex; align-items: center; gap: 6px; color: #8A6210; background: #FFF4D6; border-radius: 999px; padding: 5px 12px; font-weight: 700; font-size: 13px; }
h1,h2,h3,.section-title { color: var(--title); line-height: 1.25; margin-top: 0; }
h1 { font-size: clamp(42px,7vw,78px); letter-spacing: -.04em; margin-bottom: 20px; }
h2 { font-size: clamp(28px,4vw,44px); margin-bottom: 16px; }
h3 { font-size: 21px; margin-bottom: 10px; }
p { margin: 0 0 16px; }
.lead { font-size: clamp(17px,2vw,20px); color: var(--muted); }
.text-link { color: var(--brand); font-weight: 700; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.hero { position: relative; overflow: hidden; padding: 76px 0 68px; background: radial-gradient(circle at 9% 20%,rgba(0,212,255,.18),transparent 28%),radial-gradient(circle at 76% 12%,rgba(122,92,255,.24),transparent 32%),linear-gradient(145deg,#F7F2FF 0%,#EFF9FF 55%,#FFF8F7 100%); }
.hero:before, .hero:after { content: ""; position: absolute; border-radius: 50%; filter: blur(1px); pointer-events: none; }
.hero:before { width: 280px; height: 280px; right: -90px; top: 55px; background: rgba(255,200,87,.14); }
.hero:after { width: 190px; height: 190px; left: -70px; bottom: -80px; background: rgba(217,79,112,.12); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 56px; }
.hero-copy { max-width: 660px; }
.hero-subtitle { color: var(--brand); font-size: clamp(20px,3vw,30px); font-weight: 800; margin-bottom: 18px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-points span { background: rgba(255,255,255,.78); border: 1px solid rgba(91,108,255,.13); border-radius: 999px; padding: 8px 13px; color: var(--deep); font-size: 14px; }
.hero-visual { position: relative; min-width: 0; }
.hero-visual img, .content-img { width: 100%; height: auto; object-fit: contain; display: block; }
.hero-visual img { max-height: 600px; filter: drop-shadow(0 30px 34px rgba(50,65,125,.2)); }
.floating-note { position: absolute; left: -22px; bottom: 28px; max-width: 220px; padding: 14px 16px; border-radius: 18px; background: rgba(255,255,255,.92); border: 1px solid rgba(91,108,255,.14); box-shadow: var(--shadow); font-size: 14px; color: var(--muted); }
.floating-note strong { display: block; color: var(--title); }
.highlights { margin-top: -28px; position: relative; z-index: 3; }
.highlight-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.highlight-item { background: rgba(255,255,255,.96); border: 1px solid var(--border); box-shadow: 0 14px 34px rgba(25,43,91,.1); border-radius: 20px; padding: 20px; }
.highlight-item b { display: block; color: var(--title); margin-bottom: 6px; }
.highlight-item p { color: var(--muted); font-size: 14px; margin: 0; }
.channel-cloud { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 12px; }
.channel-pill { display: block; padding: 15px; border-radius: 18px; background: #fff; border: 1px solid var(--border); text-decoration: none; transition: .2s; }
.channel-pill:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(25,43,91,.1); }
.channel-pill strong { display: block; color: var(--brand); margin-bottom: 4px; }
.channel-pill span { display: block; color: var(--muted); font-size: 13px; line-height: 1.55; }
.split { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 50px; }
.split.reverse .media { order: 2; }
.media-card { border-radius: 30px; padding: 26px; background: linear-gradient(145deg,#EAF7FF,#F5EEFF); border: 1px solid var(--border); box-shadow: var(--shadow); }
.media-card img { width: 100%; max-height: 520px; object-fit: contain; display: block; }
.card, .zone-card, .info-card, .review-card, .faq-item, .service-card { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 22px; }
.card-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 22px; }
.card { padding: 25px; }
.card img { width: 100%; aspect-ratio: 16/10; object-fit: contain; border-radius: 16px; background: #F3F6FF; margin-bottom: 18px; }
.card p, .zone-card p, .service-card p { color: var(--muted); }
.card ul, .zone-card ul, .service-card ul { margin: 16px 0 0; padding-left: 20px; color: var(--muted); }
.duo-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 24px; }
.zone-card { overflow: hidden; }
.zone-card img { width: 100%; height: 300px; object-fit: contain; background: linear-gradient(145deg,#EEF8FF,#F4EDFF); display: block; }
.zone-body { padding: 28px; }
.zone-points { display: grid; gap: 9px; margin: 18px 0; }
.zone-points span { position: relative; padding-left: 20px; color: var(--muted); }
.zone-points span:before { content: ""; position: absolute; left: 0; top: .72em; width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); }
.trio-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 22px; }
.info-card { overflow: hidden; }
.info-card img { width: 100%; height: 210px; object-fit: contain; background: #F1F6FF; display: block; }
.info-card .inner { padding: 24px; }
.security-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.security-card { padding: 28px; border-radius: 26px; background: #11182F; color: #EAF0FF; overflow: hidden; position: relative; }
.security-card.light { background: linear-gradient(145deg,#EAF7FF,#F5EEFF); color: var(--ink); }
.security-card h3 { color: inherit; font-size: 28px; }
.security-card p { color: inherit; opacity: .8; }
.security-card img { width: 100%; max-height: 300px; object-fit: contain; display: block; margin-top: 18px; }
.review-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.review-card { padding: 24px; }
.review-card p { color: var(--muted); }
.review-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; color: var(--soft); font-size: 13px; }
.review-meta strong { color: var(--title); font-size: 15px; }
.faq-list { display: grid; gap: 14px; }
.faq-item { padding: 22px 24px; box-shadow: 0 12px 32px rgba(25,43,91,.08); }
.faq-item summary { cursor: pointer; color: var(--title); font-weight: 800; list-style: none; position: relative; padding-right: 28px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:after { content: "+"; position: absolute; right: 0; top: -4px; color: var(--brand); font-size: 24px; }
.faq-item[open] summary:after { content: "−"; }
.faq-item p { margin: 14px 0 0; color: var(--muted); }
.compliance { border-radius: 30px; padding: 34px; background: linear-gradient(135deg,#16213E,#24245A); color: #F2F5FF; }
.compliance h2, .compliance h3 { color: #fff; }
.compliance p { color: rgba(238,242,255,.82); }
.compliance-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 30px; align-items: center; }
.compliance-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.compliance .secondary-btn { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.2); }
.inner-hero { padding: 68px 0 56px; background: radial-gradient(circle at 12% 18%,rgba(0,212,255,.17),transparent 28%),radial-gradient(circle at 80% 10%,rgba(122,92,255,.2),transparent 30%),linear-gradient(145deg,#F8F2FF,#EDF9FF); }
.inner-hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 48px; }
.inner-hero h1 { font-size: clamp(38px,6vw,64px); }
.inner-hero img { width: 100%; max-height: 480px; object-fit: contain; filter: drop-shadow(0 24px 32px rgba(56,70,130,.18)); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 14px; margin-bottom: 14px; }
.breadcrumb a { color: var(--brand); text-decoration: none; }
.content-stack { display: grid; gap: 22px; }
.prose-card { padding: 30px; border-radius: 24px; background: #fff; border: 1px solid var(--border); box-shadow: 0 15px 36px rgba(25,43,91,.09); }
.prose-card p { color: var(--muted); }
.service-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.service-card { padding: 24px; }
.number { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; background: var(--gradient); color: #fff; font-weight: 800; margin-bottom: 14px; }
.steps { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; counter-reset: step; }
.step { position: relative; padding: 25px 24px 24px 74px; border-radius: 20px; background: #fff; border: 1px solid var(--border); }
.step:before { counter-increment: step; content: counter(step); position: absolute; left: 22px; top: 24px; width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; background: #EEF0FF; color: var(--brand); font-weight: 800; }
.step p { color: var(--muted); margin: 0; }
.notice-list { display: grid; gap: 10px; margin-top: 16px; }
.notice-list span { display: block; padding: 12px 14px; border-radius: 14px; background: #F5F7FF; color: var(--muted); }
.site-footer { background: var(--night); color: #EEF2FF; padding: 64px 0 28px; }
.footer-grid { width: min(var(--max),calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: 1.4fr repeat(3,1fr); gap: 38px; }
.footer-logo { margin-bottom: 16px; }
.footer-brand p { color: rgba(238,242,255,.67); max-width: 420px; }
.site-footer h2 { color: #fff; font-size: 17px; margin-bottom: 14px; }
.site-footer a:not(.site-logo) { display: block; color: rgba(238,242,255,.72); text-decoration: none; margin: 8px 0; font-size: 14px; }
.site-footer a:hover { color: #fff; }
.footer-bottom { width: min(var(--max),calc(100% - 40px)); margin: 38px auto 0; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; }
.footer-bottom p { color: rgba(238,242,255,.58); font-size: 13px; margin: 0; max-width: 780px; }
.footer-bottom div { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-bottom div a { margin: 0 !important; }
.mobile-quick-nav { display: none; }
@media (max-width: 1040px) {
  .nav-core { display: none; }
  .header-inner { grid-template-columns: auto 1fr auto; }
  .hero-grid, .inner-hero-grid, .split, .compliance-grid { grid-template-columns: 1fr; }
  .hero-copy { max-width: none; }
  .hero-visual img { max-height: 500px; }
  .split.reverse .media { order: initial; }
  .highlight-grid { grid-template-columns: repeat(2,1fr); }
  .channel-cloud { grid-template-columns: repeat(3,1fr); }
  .card-grid, .trio-grid, .review-grid, .service-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1.3fr repeat(2,1fr); }
  .footer-grid > div:last-child { grid-column: 2 / 4; }
}
@media (max-width: 720px) {
  body { padding-bottom: 72px; }
  .header-inner { min-height: 64px; padding: 0 12px; display: grid; grid-template-columns: 1fr auto 1fr; gap: 8px; }
  .header-actions { display: contents; }
  .menu-toggle { grid-column: 1; grid-row: 1; justify-self: start; }
  .site-logo { grid-column: 2; grid-row: 1; justify-self: center; }
  .header-cta { grid-column: 3; grid-row: 1; justify-self: end; min-height: 38px; padding: 0 14px; font-size: 13px; }
  .site-logo span { display: none; }
  .site-logo img { width: 38px; height: 38px; }
  .container { width: min(100% - 28px,var(--max)); }
  .section { padding: 64px 0; }
  .section-sm { padding: 40px 0; }
  .hero { padding: 52px 0 48px; }
  .hero-grid { gap: 34px; }
  h1 { font-size: 44px; }
  h2 { font-size: 30px; }
  .hero-actions .main-btn, .hero-actions .secondary-btn { width: 100%; }
  .floating-note { position: static; margin-top: 14px; max-width: none; }
  .highlights { margin-top: -18px; }
  .highlight-grid, .channel-cloud, .duo-grid, .trio-grid, .security-wrap, .review-grid, .service-grid, .steps, .card-grid { grid-template-columns: 1fr; }
  .channel-cloud { gap: 10px; }
  .channel-pill { padding: 14px; }
  .zone-card img { height: 240px; }
  .info-card img { height: 190px; }
  .prose-card, .zone-body, .card, .service-card { padding: 22px; }
  .compliance { padding: 26px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px; width: min(100% - 28px,var(--max)); }
  .footer-brand { grid-column: 1 / -1; }
  .footer-grid > div:last-child { grid-column: auto; }
  .footer-bottom { width: min(100% - 28px,var(--max)); flex-direction: column; }
  .mobile-quick-nav { position: fixed; z-index: 9000; left: 10px; right: 10px; bottom: max(8px,env(safe-area-inset-bottom)); height: 60px; display: grid; grid-template-columns: repeat(4,1fr); align-items: center; background: rgba(11,16,36,.96); border: 1px solid rgba(255,255,255,.1); border-radius: 20px; box-shadow: 0 16px 40px rgba(8,12,30,.26); backdrop-filter: blur(12px); }
  .mobile-quick-nav a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; color: rgba(238,242,255,.68); text-decoration: none; font-size: 11px; }
  .mobile-quick-nav a span { font-size: 18px; line-height: 1; }
  .mobile-quick-nav a.active { color: #fff; }
  .drawer-nav { grid-template-columns: 1fr; }
}
@media (max-width: 420px) {
  .header-cta { padding: 0 11px; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *,*:before,*:after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}