: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; --border: rgba(91,108,255,.18); --shadow: 0 20px 46px rgba(25,43,91,.14);
  --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, sans-serif; line-height: 1.75; overflow-x: hidden; }
body.drawer-open { overflow: hidden; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--purple); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { 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 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-weight: 800; white-space: nowrap; }
.site-logo img { width: 42px; height: 42px; object-fit: contain; }
.site-logo span { font-size: 20px; letter-spacing: .04em; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 8px; }
.nav-core a { color: #EEF2FF; 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 { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 22px; border-radius: 999px; color: #fff; font-weight: 700; background: linear-gradient(135deg,#5B6CFF 0%,#7A5CFF 48%,#00D4FF 100%); box-shadow: 0 14px 32px rgba(91,108,255,.22); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 18px 38px rgba(91,108,255,.28); }
.secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 20px; border-radius: 999px; border: 1px solid rgba(91,108,255,.28); color: var(--title); background: rgba(255,255,255,.76); font-weight: 700; }
.menu-toggle { width: 42px; height: 42px; border: 0; border-radius: 13px; background: rgba(255,255,255,.1); display: inline-flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; cursor: pointer; }
.menu-toggle span { width: 19px; height: 2px; border-radius: 9px; background: #fff; }
.mobile-menu-toggle { display: none; }
.drawer-mask { position: fixed; inset: 0; z-index: 10000; background: rgba(6,10,28,.55); opacity: 0; visibility: hidden; transition: .25s ease; }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(390px, 90vw); height: 100vh; padding: 26px; overflow-y: auto; background: #fff; transform: translateX(105%); transition: transform .28s ease; box-shadow: -24px 0 60px rgba(11,16,36,.24); }
.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(--border); }
.drawer-head strong { color: var(--title); font-size: 22px; }
.drawer-close { width: 40px; height: 40px; border: 0; border-radius: 50%; background: #F1F3FF; color: var(--title); font-size: 28px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 22px 0; }
.drawer-nav a { padding: 12px 14px; border-radius: 14px; background: #F6F7FF; color: var(--text); font-weight: 600; }
.drawer-nav a:hover { background: #EEF1FF; color: var(--brand); }
.drawer-note { padding: 16px; border-radius: 16px; background: #FFF7E1; color: #6C5A29; font-size: 14px; }
main { min-height: 60vh; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.section { padding: 84px 0; }
.section-sm { padding: 56px 0; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-kicker { display: inline-block; margin-bottom: 8px; color: #8A6714; font-size: 14px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1,h2,h3,.section-title { color: var(--title); line-height: 1.25; margin-top: 0; }
h1 { font-size: clamp(40px, 7vw, 76px); margin-bottom: 22px; letter-spacing: -.04em; }
h2 { font-size: clamp(30px, 4vw, 46px); margin-bottom: 18px; }
h3 { font-size: 22px; margin-bottom: 12px; }
p { margin: 0 0 16px; }
.lead { color: var(--muted); font-size: clamp(17px, 2vw, 20px); }
.hero { position: relative; padding: 80px 0 64px; overflow: hidden; background: radial-gradient(circle at 14% 20%, rgba(122,92,255,.18), transparent 34%), radial-gradient(circle at 88% 12%, rgba(0,212,255,.16), transparent 30%), linear-gradient(135deg,#FBF9FF 0%,#EFF5FF 55%,#FFF2FA 100%); }
.hero:before, .hero:after { content:""; position:absolute; border-radius:50%; filter: blur(1px); pointer-events:none; }
.hero:before { width: 260px; height: 260px; right: 6%; bottom: -100px; background: rgba(255,200,87,.22); }
.hero:after { width: 170px; height: 170px; left: 4%; top: 70px; background: rgba(217,79,112,.09); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; align-items: center; gap: 64px; }
.hero-copy .eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; margin-bottom: 20px; border-radius: 999px; background: rgba(255,255,255,.82); border: 1px solid var(--border); color: var(--brand); font-weight: 700; }
.hero-copy h1 span { display: block; font-size: clamp(22px,3vw,34px); margin-top: 14px; color: var(--purple); letter-spacing: 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-points span { padding: 8px 12px; border-radius: 999px; background: rgba(255,255,255,.85); color: var(--deep); border: 1px solid var(--border); font-size: 14px; }
.hero-visual { position: relative; padding: 20px; border-radius: 34px; background: rgba(255,255,255,.7); border: 1px solid rgba(255,255,255,.85); box-shadow: var(--shadow); }
.hero-visual img { width: 100%; max-height: 590px; object-fit: contain; border-radius: 24px; }
.float-chip { position: absolute; padding: 10px 14px; border-radius: 14px; background: #fff; box-shadow: 0 12px 28px rgba(25,43,91,.14); font-size: 14px; font-weight: 700; }
.float-chip.one { left: -30px; top: 18%; color: var(--brand); }
.float-chip.two { right: -18px; bottom: 14%; color: var(--rose); }
.highlight-strip { margin-top: -1px; background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.highlight-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.highlight-item { padding: 28px 24px; border-right: 1px solid var(--border); }
.highlight-item:last-child { border-right: 0; }
.highlight-item strong { display: block; color: var(--title); margin-bottom: 6px; }
.highlight-item p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.pill-nav { display: flex; flex-wrap: wrap; gap: 10px; }
.pill-link { padding: 12px 16px; border-radius: 999px; background: #fff; border: 1px solid var(--border); box-shadow: 0 10px 24px rgba(25,43,91,.06); }
.pill-link strong { display: block; color: var(--title); font-size: 15px; }
.pill-link small { display: block; color: var(--muted); font-size: 12px; }
.card,.zone-card,.info-card,.review-card,.content-panel { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: var(--radius); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: stretch; }
.split.align-center { align-items: center; }
.media-card { overflow: hidden; }
.media-card img { width: 100%; height: 300px; object-fit: contain; background: linear-gradient(135deg,#EEF1FF,#F7FBFF); }
.media-card-body { padding: 28px; }
.content-panel { padding: 34px; }
.content-panel.tint-blue { background: linear-gradient(145deg,#FFFFFF,#EFF8FF); }
.content-panel.tint-gold { background: linear-gradient(145deg,#FFFFFF,#FFF9E8); }
.content-panel.dark { background: linear-gradient(145deg,#11182F,#182346); color: #EEF2FF; }
.content-panel.dark h2,.content-panel.dark h3 { color: #fff; }
.content-panel.dark a { color: var(--cyan); }
.feature-list { display: grid; gap: 12px; margin: 20px 0; padding: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 28px; color: var(--muted); }
.feature-list li:before { content:"✓"; position:absolute; left:0; top:0; color:var(--brand); font-weight:900; }
.text-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 800; }
.text-link:after { content:"→"; transition: transform .2s; }
.text-link:hover:after { transform: translateX(4px); }
.three-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card { padding: 0; overflow: hidden; }
.service-card img { width: 100%; height: 220px; object-fit: contain; background: #F4F7FF; }
.service-card .body { padding: 26px; }
.safety-band { background: linear-gradient(135deg,#11182F 0%,#182A54 58%,#26386D 100%); color: #EEF2FF; }
.safety-band h2,.safety-band h3 { color: #fff; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.safety-card { padding: 30px; border-radius: 24px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); }
.safety-card img { height: 230px; width: 100%; object-fit: contain; margin-bottom: 18px; }
.review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.review-card { padding: 24px; }
.review-card .quote { color: var(--muted); }
.review-card .person { margin-top: 16px; font-weight: 800; color: var(--title); }
.faq-list { display: grid; gap: 14px; }
details { background:#fff; border:1px solid var(--border); border-radius:18px; padding: 0 22px; box-shadow: 0 10px 26px rgba(25,43,91,.06); }
summary { cursor:pointer; padding:20px 34px 20px 0; color:var(--title); font-weight:800; position:relative; list-style:none; }
summary::-webkit-details-marker { display:none; }
summary:after { content:"+"; position:absolute; right:0; top:14px; font-size:26px; color:var(--brand); }
details[open] summary:after { content:"−"; }
details p { padding: 0 0 22px; color:var(--muted); }
.notice { padding: 24px 28px; border-radius: 20px; background: #FFF7DF; border: 1px solid rgba(255,200,87,.48); color: #69552B; }
.inner-hero { padding: 72px 0 58px; background: radial-gradient(circle at 85% 12%,rgba(0,212,255,.15),transparent 28%),linear-gradient(135deg,#F9F7FF,#EDF5FF); }
.inner-hero-grid { display:grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items:center; }
.inner-hero h1 { font-size: clamp(38px,5.5vw,62px); }
.inner-hero img { width:100%; max-height:430px; object-fit:contain; border-radius:28px; background:#fff; box-shadow:var(--shadow); }
.breadcrumb { color:var(--muted); font-size:14px; margin-bottom:16px; }
.breadcrumb a { color:var(--brand); }
.article-grid { display:grid; grid-template-columns: minmax(0,1fr) 320px; gap:28px; align-items:start; }
.article-card { padding:34px; }
.article-card p { color:#46516D; }
.article-card h2 { margin-top:34px; font-size:30px; }
.side-stack { display:grid; gap:18px; position:sticky; top:96px; }
.side-card { padding:24px; }
.side-card ul { margin:0; padding-left:20px; color:var(--muted); }
.point-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin:24px 0; }
.point { padding:20px; border-radius:18px; background:#F6F8FF; border:1px solid var(--border); }
.point strong { display:block; color:var(--title); margin-bottom:6px; }
.callout { margin:26px 0; padding:22px 24px; border-left:4px solid var(--brand); border-radius:0 18px 18px 0; background:#EEF1FF; color:#46516D; }
.contact-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:18px; }
.contact-item { padding:22px; border-radius:18px; background:#F7F8FF; border:1px solid var(--border); }
.site-footer { background:#0B1024; color:#EEF2FF; padding:64px 0 24px; }
.footer-inner { width:min(var(--max),calc(100% - 40px)); margin:0 auto; display:grid; grid-template-columns:1.05fr 1.95fr; gap:56px; }
.footer-brand p { color:#B8C1DA; max-width:420px; margin-top:18px; }
.footer-links { display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.footer-links strong { display:block; margin-bottom:14px; color:#fff; }
.footer-links a { display:block; color:#B8C1DA; margin:8px 0; font-size:14px; }
.footer-links a:hover { color:#fff; }
.footer-bottom { width:min(var(--max),calc(100% - 40px)); margin:44px auto 0; padding-top:22px; border-top:1px solid rgba(255,255,255,.12); display:flex; justify-content:space-between; gap:20px; color:#8F9AB5; font-size:13px; }
.mobile-bottom-nav { display:none; }
@media (max-width: 1080px) {
  .nav-core { gap:2px; }
  .nav-core a { padding:8px 9px; font-size:14px; }
  .hero-grid,.inner-hero-grid { gap:36px; }
  .article-grid { grid-template-columns:1fr; }
  .side-stack { position:static; grid-template-columns:repeat(2,1fr); }
}
@media (max-width: 880px) {
  .nav-core,.desktop-menu-toggle { display:none; }
  .mobile-menu-toggle { display:inline-flex; }
  .header-inner { min-height:66px; padding:0 14px; }
  .site-logo span { display:none; }
  .site-logo { position:absolute; left:50%; transform:translateX(-50%); }
  .site-logo img { width:38px; height:38px; }
  .header-cta { min-height:40px; padding:0 14px; font-size:14px; }
  .hero { padding:58px 0 48px; }
  .hero-grid,.inner-hero-grid,.split,.safety-grid { grid-template-columns:1fr; }
  .hero-copy { text-align:center; }
  .hero-actions,.hero-points { justify-content:center; }
  .float-chip.one { left:8px; }
  .float-chip.two { right:8px; }
  .highlight-grid { grid-template-columns:repeat(2,1fr); }
  .highlight-item:nth-child(2) { border-right:0; }
  .highlight-item:nth-child(-n+2) { border-bottom:1px solid var(--border); }
  .three-grid,.review-grid { grid-template-columns:1fr 1fr; }
  .point-grid { grid-template-columns:1fr; }
  .footer-inner { grid-template-columns:1fr; }
}
@media (max-width: 620px) {
  body { padding-bottom:70px; }
  .container { width:min(100% - 28px,var(--max)); }
  .section { padding:62px 0; }
  .section-sm { padding:42px 0; }
  h1 { font-size:42px; }
  h2 { font-size:30px; }
  .hero-copy .lead { font-size:16px; }
  .hero-visual { padding:12px; }
  .highlight-grid,.three-grid,.review-grid,.footer-links,.side-stack,.contact-grid { grid-template-columns:1fr; }
  .highlight-item { border-right:0; border-bottom:1px solid var(--border); }
  .highlight-item:last-child { border-bottom:0; }
  .content-panel,.article-card { padding:24px; }
  .drawer-nav { grid-template-columns:1fr; }
  .footer-bottom { flex-direction:column; }
  .mobile-bottom-nav { position:fixed; z-index:9998; left:10px; right:10px; bottom:10px; display:grid; grid-template-columns:repeat(4,1fr); padding:8px; border-radius:20px; background:rgba(11,16,36,.95); backdrop-filter:blur(12px); box-shadow:0 16px 36px rgba(11,16,36,.28); }
  .mobile-bottom-nav a { display:flex; flex-direction:column; align-items:center; gap:2px; color:#EAF0FF; font-size:12px; }
  .mobile-bottom-nav span { font-size:18px; color:var(--cyan); }
}