:root {
  --bg: #F5F7FF;
  --nav: rgba(12,18,40,.94);
  --title: #131A35;
  --brand: #5B6CFF;
  --deep: #16213E;
  --cyan: #00D4FF;
  --gold: #FFC857;
  --rose: #D94F70;
  --violet: #7A5CFF;
  --text: #1F2740;
  --muted: #66708A;
  --soft: #9AA4BA;
  --card: #FFFFFF;
  --dark-card: #11182F;
  --blue-card: #EFF8FF;
  --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%);
  --footer: #0B1024;
  --radius: 24px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,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; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.narrow { width: min(860px, calc(100% - 40px)); }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 12000; background: #fff; color: var(--brand); padding: 10px 14px; border-radius: 10px; }
.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,.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; font-weight: 900; font-size: 24px; letter-spacing: -.04em; color: #fff; flex: 0 0 auto; }
.site-logo img { width: 44px; height: 44px; object-fit: contain; }
.nav-core { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.nav-core a { color: #EEF2FF; text-decoration: none; border-radius: 999px; padding: 8px 12px; font-size: 15px; }
.nav-core a:hover,.nav-core a.active { color: #fff; background: rgba(217,79,112,.2); }
.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: 46px; padding: 0 22px; border-radius: 999px; background: var(--gradient); color: #fff; text-decoration: none; font-weight: 800; border: 0; box-shadow: 0 14px 32px rgba(91,108,255,.22); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 18px 36px rgba(91,108,255,.3); }
.menu-button,.drawer-close { border: 1px solid rgba(255,255,255,.22); background: rgba(255,255,255,.08); color: #fff; min-height: 42px; padding: 0 15px; border-radius: 999px; cursor: pointer; }
.mobile-only { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(4,8,22,.52); opacity: 0; transition: opacity .22s ease; }
.drawer-overlay.is-visible { opacity: 1; }
.site-drawer { position: fixed; z-index: 10001; top: 0; right: 0; width: min(390px, 90vw); height: 100dvh; background: #fff; padding: 24px; transform: translateX(105%); transition: transform .26s ease; box-shadow: -24px 0 60px rgba(6,12,32,.2); overflow-y: auto; }
.site-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--border); padding-bottom: 18px; }
.drawer-head .site-logo { color: var(--title); }
.drawer-close { color: var(--title); border-color: var(--border); background: #F4F6FF; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 22px 0; }
.drawer-nav a { text-decoration: none; padding: 12px 14px; border-radius: 14px; background: #F7F8FF; color: var(--title); font-weight: 700; }
.drawer-nav a:hover { background: #ECEFFF; color: var(--brand); }
.drawer-note { padding: 16px; border-radius: 16px; background: #FFF6E2; color: #6D5520; font-size: 14px; }
.hero { position: relative; overflow: hidden; padding: 72px 0 52px; background: radial-gradient(circle at 12% 12%,rgba(122,92,255,.22),transparent 34%),radial-gradient(circle at 88% 8%,rgba(0,212,255,.2),transparent 30%),linear-gradient(145deg,#F9F7FF 0%,#EDF8FF 56%,#FFF2F7 100%); }
.hero:before,.hero:after { content:""; position:absolute; border-radius:50%; filter: blur(2px); pointer-events:none; }
.hero:before { width:230px; height:230px; right:9%; bottom:-90px; background:rgba(217,79,112,.12); }
.hero:after { width:130px; height:130px; left:4%; top:36%; background:rgba(255,200,87,.18); }
.hero-grid { position: relative; z-index: 1; display:grid; grid-template-columns:1.03fr .97fr; align-items:center; gap:48px; }
.hero h1 { margin: 10px 0 6px; font-size: clamp(58px,8vw,112px); line-height:.95; letter-spacing:-.07em; color: var(--title); }
.hero-subtitle { font-size: clamp(24px,3vw,40px); color: var(--deep); font-weight: 850; margin: 0 0 20px; letter-spacing:-.03em; }
.hero-copy > p { max-width: 680px; font-size: 17px; color: var(--muted); }
.section-kicker { display:inline-flex; align-items:center; gap:8px; color: var(--violet); font-size:13px; font-weight:900; letter-spacing:.12em; text-transform:uppercase; }
.section-kicker:before { content:""; width:24px; height:3px; border-radius:99px; background:linear-gradient(90deg,var(--rose),var(--cyan)); }
.hero-actions { display:flex; align-items:center; gap:18px; margin-top:28px; flex-wrap:wrap; }
.text-btn,.text-link { color: var(--brand); font-weight:800; text-decoration:none; }
.text-btn:hover,.text-link:hover { text-decoration:underline; }
.hero-points { display:flex; gap:10px; flex-wrap:wrap; margin-top:25px; padding:0; list-style:none; }
.hero-points li { background:rgba(255,255,255,.78); border:1px solid rgba(91,108,255,.16); border-radius:999px; padding:8px 13px; color:var(--deep); font-size:14px; font-weight:700; }
.hero-visual { position:relative; }
.hero-visual:before { content:""; position:absolute; inset:8% 4% -3% 13%; border-radius:40px; background:linear-gradient(145deg,rgba(91,108,255,.22),rgba(0,212,255,.13)); transform:rotate(4deg); }
.hero-visual img { position:relative; width:100%; max-height:600px; object-fit:contain; filter:drop-shadow(0 28px 45px rgba(26,36,79,.2)); }
.stats-strip { margin-top:-1px; background:#fff; border-top:1px solid var(--border); border-bottom:1px solid var(--border); }
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); }
.stat-item { padding:24px 22px; border-right:1px solid var(--border); }
.stat-item:last-child { border-right:0; }
.stat-item strong { display:block; color:var(--title); font-size:18px; }
.stat-item span { display:block; color:var(--muted); font-size:14px; margin-top:4px; }
.section { padding:78px 0; }
.section-tint { background:linear-gradient(180deg,#F0F5FF 0%,#F8FAFF 100%); }
.section-dark { background:linear-gradient(145deg,#101733,#151E42); color:#EAF0FF; }
.section-head { max-width:760px; margin-bottom:34px; }
.section-head.center { text-align:center; margin-left:auto; margin-right:auto; }
.section-head h2,.article-card h2,.info-card h2,.compliance-panel h2 { color:var(--title); margin:8px 0 10px; line-height:1.2; letter-spacing:-.035em; font-size:clamp(28px,4vw,46px); }
.section-head p { color:var(--muted); margin:0; }
.channel-pills { display:flex; gap:12px; overflow-x:auto; padding:4px 2px 12px; scrollbar-width:thin; }
.channel-pill { flex:0 0 205px; min-height:128px; padding:18px; border-radius:20px; text-decoration:none; background:#fff; border:1px solid var(--border); box-shadow:0 10px 28px rgba(25,43,91,.08); }
.channel-pill strong { display:block; color:var(--title); margin-bottom:7px; }
.channel-pill span { color:var(--muted); font-size:13px; line-height:1.55; }
.channel-pill:hover { transform:translateY(-3px); border-color:rgba(91,108,255,.42); }
.split-grid { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.media-card,.zone-card,.info-card,.review-card,.article-card { background:#fff; border:1px solid var(--border); box-shadow:var(--shadow); border-radius:var(--radius); }
.media-card { display:grid; grid-template-columns:.86fr 1.14fr; overflow:hidden; align-items:stretch; }
.media-card.reverse { grid-template-columns:1.14fr .86fr; }
.media-card img { width:100%; height:100%; min-height:360px; object-fit:contain; background:linear-gradient(145deg,#EEF0FF,#EAFBFF); padding:24px; }
.media-card-copy { padding:36px; }
.media-card-copy h2,.zone-card h3 { color:var(--title); line-height:1.25; letter-spacing:-.025em; }
.media-card-copy h2 { font-size:clamp(28px,4vw,42px); margin:8px 0 14px; }
.media-card-copy p,.zone-card p { color:var(--muted); }
.feature-list { padding:0; margin:20px 0; list-style:none; display:grid; gap:10px; }
.feature-list li { position:relative; padding-left:24px; color:var(--text); }
.feature-list li:before { content:""; position:absolute; left:0; top:.65em; width:10px; height:10px; border-radius:50%; background:linear-gradient(135deg,var(--rose),var(--cyan)); }
.zone-card { overflow:hidden; }
.zone-card img { width:100%; height:250px; object-fit:contain; background:linear-gradient(145deg,#F3F0FF,#EAF9FF); padding:16px; }
.zone-card-body { padding:28px; }
.zone-card h3 { font-size:28px; margin:4px 0 10px; }
.zone-card .mini-points { display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin-top:18px; }
.mini-points span { padding:9px 8px; text-align:center; border-radius:10px; background:#F3F5FF; color:var(--deep); font-size:13px; font-weight:700; }
.triple-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.triple-grid .zone-card img { height:210px; }
.security-grid { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.security-panel { padding:34px; border-radius:var(--radius); background:#fff; border:1px solid var(--border); }
.security-panel.dark { background:var(--dark-card); color:#EAF0FF; border-color:rgba(255,255,255,.1); }
.security-panel.dark h2,.security-panel.dark h3 { color:#fff; }
.security-panel img { height:260px; width:100%; object-fit:contain; margin-bottom:18px; }
.security-panel h3 { font-size:30px; margin:0 0 10px; color:var(--title); }
.security-panel p { color:var(--muted); }
.security-panel.dark p { color:#BFC8E6; }
.review-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.review-grid.compact { grid-template-columns:repeat(2,1fr); }
.review-card { margin:0; padding:26px; }
.review-card p { margin:0 0 18px; color:var(--text); }
.review-card footer { color:var(--brand); font-weight:800; }
.faq-list { display:grid; gap:12px; }
.faq-list details { background:#fff; border:1px solid var(--border); border-radius:18px; padding:0 20px; box-shadow:0 10px 24px rgba(25,43,91,.07); }
.faq-list summary { cursor:pointer; color:var(--title); font-weight:800; padding:18px 30px 18px 0; position:relative; }
.faq-list summary:after { content:"+"; position:absolute; right:2px; top:14px; font-size:24px; color:var(--brand); }
.faq-list details[open] summary:after { content:"–"; }
.faq-list p { margin:0; padding:0 0 18px; color:var(--muted); }
.compliance-panel { display:flex; align-items:center; justify-content:space-between; gap:30px; padding:36px; border-radius:30px; background:linear-gradient(135deg,#FFF4D6 0%,#F4EEFF 55%,#EAF7FF 100%); border:1px solid rgba(91,108,255,.18); }
.compliance-panel p { color:var(--muted); max-width:760px; }
.compliance-links { display:flex; flex-direction:column; gap:10px; min-width:150px; }
.compliance-links a { color:var(--brand); font-weight:800; text-decoration:none; }
.about-mini { display:grid; grid-template-columns:.8fr 1.2fr; gap:30px; align-items:center; }
.about-mini img { max-height:340px; object-fit:contain; }
.inner-hero { padding:58px 0 46px; background:radial-gradient(circle at 10% 10%,rgba(122,92,255,.18),transparent 30%),radial-gradient(circle at 90% 10%,rgba(0,212,255,.16),transparent 26%),linear-gradient(145deg,#F9F7FF,#EFF8FF); border-bottom:1px solid var(--border); }
.inner-hero-grid { display:grid; grid-template-columns:1.05fr .95fr; gap:42px; align-items:center; }
.inner-hero h1 { margin:10px 0 14px; color:var(--title); font-size:clamp(40px,6vw,72px); line-height:1.05; letter-spacing:-.05em; }
.inner-hero p { color:var(--muted); font-size:17px; max-width:680px; }
.inner-hero-media img { width:100%; max-height:430px; object-fit:contain; filter:drop-shadow(0 22px 34px rgba(25,43,91,.16)); }
.breadcrumb { padding-top:24px; font-size:14px; color:var(--muted); }
.breadcrumb a { color:var(--brand); text-decoration:none; }
.reading-layout { display:grid; grid-template-columns:minmax(0,1.35fr) minmax(300px,.65fr); gap:28px; align-items:start; }
.article-card { padding:38px; }
.article-section + .article-section { border-top:1px solid var(--border); margin-top:30px; padding-top:30px; }
.article-card h2 { font-size:32px; }
.article-card p { color:var(--muted); font-size:16px; }
.side-stack { display:grid; gap:20px; position:sticky; top:96px; }
.info-card { padding:28px; }
.info-card h2 { font-size:26px; }
.soft-blue { background:var(--blue-card); }
.check-list,.step-list { margin:18px 0; padding:0; list-style:none; display:grid; gap:16px; }
.check-list li { display:grid; gap:4px; padding-left:18px; border-left:3px solid var(--cyan); }
.check-list strong { color:var(--title); }
.check-list span { color:var(--muted); font-size:14px; }
.step-list { counter-reset:steps; }
.step-list li { counter-increment:steps; position:relative; padding-left:42px; color:var(--muted); }
.step-list li:before { content:counter(steps); position:absolute; left:0; top:0; width:28px; height:28px; display:grid; place-items:center; border-radius:50%; background:var(--gradient); color:#fff; font-weight:800; font-size:13px; }
.site-footer { background:var(--footer); color:#EEF2FF; padding:60px 0 30px; }
.footer-grid { display:grid; grid-template-columns:1.7fr repeat(3,1fr); gap:32px; }
.footer-grid h2 { font-size:16px; color:#fff; margin:0 0 15px; }
.footer-grid a { display:block; text-decoration:none; color:#B9C3E2; margin:9px 0; font-size:14px; }
.footer-grid a:hover { color:#fff; }
.footer-brand p { color:#AEB8D8; max-width:390px; }
.footer-bottom { margin-top:40px; padding-top:24px; border-top:1px solid rgba(255,255,255,.12); display:flex; justify-content:space-between; gap:20px; color:#98A4C8; font-size:13px; }
.footer-bottom div { display:flex; gap:16px; }
.footer-bottom a { color:#C9D1EA; text-decoration:none; }
.mobile-bottom-nav { display:none; }
@media (max-width: 1020px) {
  .nav-core { display:none; }
  .hero-grid,.inner-hero-grid,.reading-layout { grid-template-columns:1fr; }
  .hero-copy { max-width:800px; }
  .hero-visual img { max-height:500px; }
  .side-stack { position:static; grid-template-columns:1fr 1fr; }
  .review-grid { grid-template-columns:repeat(2,1fr); }
  .triple-grid { grid-template-columns:1fr 1fr; }
  .footer-grid { grid-template-columns:1.4fr 1fr 1fr; }
  .footer-grid > div:last-child { grid-column:2/4; }
}
@media (max-width: 760px) {
  body { padding-bottom:72px; }
  .container,.narrow { width:min(100% - 28px,1180px); }
  .header-inner { display:grid; grid-template-columns:1fr auto 1fr; min-height:64px; padding:0 14px; gap:8px; }
  .mobile-only { display:inline-flex; justify-self:start; padding:0 12px; }
  .desktop-menu { display:none; }
  .site-header .site-logo { justify-self:center; }
  .site-header .site-logo img { width:38px; height:38px; }
  .site-header .site-logo span { display:none; }
  .header-actions { justify-self:end; }
  .header-cta { min-height:40px; padding:0 14px; font-size:13px; }
  .drawer-nav { grid-template-columns:1fr; }
  .hero { padding:48px 0 36px; }
  .hero-grid { gap:26px; }
  .hero h1 { font-size:66px; }
  .hero-subtitle { font-size:27px; }
  .stats-grid { grid-template-columns:1fr 1fr; }
  .stat-item:nth-child(2) { border-right:0; }
  .stat-item:nth-child(-n+2) { border-bottom:1px solid var(--border); }
  .section { padding:58px 0; }
  .split-grid,.security-grid,.triple-grid,.review-grid,.review-grid.compact,.side-stack,.about-mini { grid-template-columns:1fr; }
  .media-card,.media-card.reverse { grid-template-columns:1fr; }
  .media-card img { min-height:260px; max-height:360px; }
  .zone-card .mini-points { grid-template-columns:1fr; }
  .compliance-panel { align-items:flex-start; flex-direction:column; padding:28px; }
  .compliance-links { flex-direction:row; flex-wrap:wrap; }
  .article-card { padding:26px; }
  .inner-hero { padding:42px 0 32px; }
  .inner-hero-media { order:-1; }
  .inner-hero-media img { max-height:320px; }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .footer-brand { grid-column:1/-1; }
  .footer-grid > div:last-child { grid-column:auto; }
  .footer-bottom { flex-direction:column; }
  .mobile-bottom-nav { position:fixed; display:grid; grid-template-columns:repeat(4,1fr); left:10px; right:10px; bottom:10px; z-index:9000; min-height:58px; padding:6px; border:1px solid rgba(91,108,255,.2); border-radius:20px; background:rgba(255,255,255,.94); backdrop-filter:blur(14px); box-shadow:0 18px 40px rgba(25,43,91,.2); }
  .mobile-bottom-nav a { display:grid; place-items:center; text-decoration:none; color:var(--muted); font-size:13px; font-weight:800; border-radius:14px; }
  .mobile-bottom-nav a:hover { color:var(--brand); background:#EFF1FF; }
}
@media (max-width: 430px) {
  .header-cta { padding:0 11px; }
  .hero-actions { align-items:stretch; flex-direction:column; }
  .hero-actions a { width:100%; }
  .stats-grid { grid-template-columns:1fr; }
  .stat-item { border-right:0; border-bottom:1px solid var(--border); }
  .stat-item:last-child { border-bottom:0; }
  .footer-grid { grid-template-columns:1fr; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior:auto !important; transition:none !important; animation:none !important; }
}