:root {
  --bg: #F5F7FF;
  --nav: rgba(12,18,40,.94);
  --title: #131A35;
  --primary: #5B6CFF;
  --deep: #16213E;
  --cyan: #00D4FF;
  --gold: #FFC857;
  --rose: #D94F70;
  --lavender: #7A5CFF;
  --text: #1F2740;
  --muted: #66708A;
  --soft: #9AA4BA;
  --white: #fff;
  --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%);
  --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, BlinkMacSystemFont, "Segoe 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, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 12000; padding: 10px 16px; border-radius: 10px; background: #fff; color: var(--deep); box-shadow: var(--shadow); transition: top .2s; }
.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 20px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: #fff; font-weight: 900; letter-spacing: .02em; white-space: nowrap; }
.site-logo img { width: 44px; height: 44px; object-fit: contain; }
.site-logo span { font-size: 20px; }
.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: .2s ease; }
.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; min-height: 46px; padding: 0 22px; border: 0; border-radius: 999px; background: var(--gradient); color: #fff; font-weight: 800; text-decoration: none; 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 38px rgba(91,108,255,.28); }
.secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 0 22px; border-radius: 999px; border: 1px solid rgba(91,108,255,.25); color: var(--primary); background: rgba(255,255,255,.86); font-weight: 800; text-decoration: none; }
.text-link { color: var(--primary); font-weight: 800; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.menu-toggle { width: 44px; height: 44px; padding: 0; border: 1px solid rgba(255,255,255,.18); 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: 18px; height: 2px; border-radius: 4px; background: #fff; }
.mobile-menu-toggle { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(8,13,31,.54); opacity: 0; transition: opacity .24s ease; }
.drawer-overlay.visible { opacity: 1; }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(420px, 92vw); height: 100dvh; padding: 24px; background: #fff; box-shadow: -26px 0 60px rgba(11,16,36,.22); transform: translateX(105%); transition: transform .28s ease; overflow-y: auto; overscroll-behavior: contain; }
.site-drawer.open { 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); text-decoration: none; font-size: 20px; }
.drawer-brand img { width: 42px; height: 42px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: #EFF2FF; color: var(--title); font-size: 28px; cursor: pointer; }
.drawer-intro { margin: 22px 0; color: var(--muted); }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.drawer-nav a { padding: 14px; border: 1px solid var(--border); border-radius: 16px; text-decoration: none; background: #fff; transition: .2s ease; }
.drawer-nav a:hover, .drawer-nav a.active { border-color: rgba(91,108,255,.5); background: #F4F5FF; transform: translateY(-1px); }
.drawer-nav span { display: block; color: var(--title); font-weight: 800; }
.drawer-nav small { display: block; margin-top: 4px; color: var(--muted); line-height: 1.5; }
.drawer-notice { margin-top: 22px; padding: 16px; border-radius: 16px; background: #FFF4D6; color: #6D5721; font-size: 14px; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }
.section { padding: 88px 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-flex; align-items: center; gap: 8px; margin-bottom: 10px; color: #7B5A00; font-size: 13px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.section-kicker::before { content: ""; width: 30px; height: 2px; border-radius: 999px; background: var(--gold); }
h1, h2, h3, .section-title { margin-top: 0; color: var(--title); line-height: 1.25; }
h1 { font-size: clamp(44px, 7vw, 84px); letter-spacing: -.04em; }
h2 { font-size: clamp(30px, 4.2vw, 48px); letter-spacing: -.025em; }
h3 { font-size: 22px; }
p { margin-top: 0; }
.lead { color: var(--muted); font-size: clamp(17px, 2vw, 20px); }
.hero { position: relative; overflow: hidden; padding: 78px 0 70px; background: radial-gradient(circle at 10% 20%, rgba(122,92,255,.18), transparent 32%), radial-gradient(circle at 88% 12%, rgba(0,212,255,.18), transparent 30%), linear-gradient(145deg,#F7F4FF 0%,#EBF8FF 55%,#FFF7FC 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; filter: blur(4px); pointer-events: none; }
.hero::before { width: 270px; height: 270px; right: -80px; top: 60px; background: rgba(255,200,87,.18); }
.hero::after { width: 190px; height: 190px; left: -70px; bottom: 40px; background: rgba(217,79,112,.12); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; gap: 62px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border: 1px solid rgba(91,108,255,.18); border-radius: 999px; background: rgba(255,255,255,.76); color: var(--primary); font-size: 14px; font-weight: 800; }
.hero h1 { margin: 18px 0 10px; }
.hero-subtitle { margin-bottom: 20px; font-size: clamp(24px, 3vw, 38px); color: var(--deep); font-weight: 850; line-height: 1.35; }
.hero-copy { max-width: 680px; color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0 24px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 12px; padding: 0; margin: 0; list-style: none; }
.hero-points li { padding: 9px 13px; border-radius: 999px; background: rgba(255,255,255,.84); border: 1px solid var(--border); color: var(--deep); font-weight: 700; }
.hero-visual { position: relative; min-width: 0; }
.hero-visual > img { width: 100%; max-height: 590px; object-fit: contain; filter: drop-shadow(0 26px 38px rgba(25,43,91,.18)); }
.floating-card { position: absolute; max-width: 210px; padding: 14px 16px; border: 1px solid rgba(255,255,255,.8); border-radius: 18px; background: rgba(255,255,255,.9); box-shadow: var(--shadow); backdrop-filter: blur(12px); }
.floating-card strong { display: block; color: var(--title); }
.floating-card small { color: var(--muted); }
.float-one { left: -20px; bottom: 40px; }
.float-two { right: -12px; top: 42px; }
.highlight-bar { position: relative; z-index: 3; margin-top: -18px; }
.highlight-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; padding: 18px; border-radius: 28px; background: rgba(255,255,255,.94); border: 1px solid rgba(91,108,255,.14); box-shadow: var(--shadow); }
.highlight-item { padding: 12px 16px; border-right: 1px solid rgba(91,108,255,.12); }
.highlight-item:last-child { border-right: 0; }
.highlight-item strong { display: block; color: var(--title); font-size: 17px; }
.highlight-item p { margin: 5px 0 0; color: var(--muted); font-size: 14px; line-height: 1.65; }
.pill-grid { display: flex; flex-wrap: wrap; gap: 12px; }
.pill-link { flex: 1 1 210px; min-height: 104px; padding: 17px 18px; border-radius: 20px; border: 1px solid var(--border); background: #fff; text-decoration: none; box-shadow: 0 12px 28px rgba(25,43,91,.08); transition: .2s ease; }
.pill-link:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.pill-link strong { display: block; color: var(--title); }
.pill-link span { display: block; margin-top: 4px; color: var(--muted); font-size: 14px; line-height: 1.55; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; }
.split.reverse .media { order: 2; }
.media { min-width: 0; }
.content-img { width: 100%; max-height: 530px; object-fit: contain; border-radius: 28px; background: linear-gradient(145deg,#EEF2FF,#F9FCFF); box-shadow: var(--shadow); }
.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); border-radius: 22px; }
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.feature-card { padding: 26px; }
.feature-card .number { display: inline-grid; place-items: center; width: 44px; height: 44px; margin-bottom: 16px; border-radius: 14px; background: #EFF2FF; color: var(--primary); font-weight: 900; }
.feature-card p { color: var(--muted); }
.dual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.zone-card { overflow: hidden; }
.zone-card img { width: 100%; height: 310px; object-fit: contain; background: linear-gradient(145deg,#EEF2FF,#FDF7FF); }
.zone-card-body { padding: 28px; }
.zone-card p { color: var(--muted); }
.service-points { display: grid; gap: 11px; padding: 0; list-style: none; }
.service-points li { position: relative; padding-left: 24px; color: var(--text); }
.service-points li::before { content: ""; position: absolute; left: 0; top: .72em; width: 10px; height: 10px; border-radius: 50%; background: var(--gradient); transform: translateY(-50%); }
.triple-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.info-card { overflow: hidden; }
.info-card img { width: 100%; height: 230px; object-fit: contain; background: #F2F5FF; }
.info-card-body { padding: 24px; }
.info-card p { color: var(--muted); }
.dark-section { position: relative; overflow: hidden; background: #11182F; color: #EEF2FF; }
.dark-section::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 12% 20%,rgba(91,108,255,.26),transparent 34%), radial-gradient(circle at 88% 80%,rgba(0,212,255,.17),transparent 30%); pointer-events: none; }
.dark-section .container { position: relative; z-index: 1; }
.dark-section h2, .dark-section h3 { color: #fff; }
.dark-section p { color: #C9D1EA; }
.safety-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.safety-card { padding: 28px; border: 1px solid rgba(255,255,255,.12); border-radius: 24px; background: rgba(255,255,255,.06); }
.safety-card img { width: 100%; height: 260px; object-fit: contain; margin-bottom: 20px; }
.review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.review-card { padding: 25px; }
.review-card p { color: var(--text); }
.review-card footer { display: flex; align-items: center; gap: 10px; margin-top: 18px; color: var(--muted); font-size: 14px; }
.avatar { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg,#EEE9FF,#E3F9FF); color: var(--primary); font-weight: 900; }
.faq-list { display: grid; gap: 14px; }
details { border: 1px solid var(--border); border-radius: 18px; background: #fff; box-shadow: 0 10px 24px rgba(25,43,91,.06); }
summary { padding: 20px 54px 20px 22px; cursor: pointer; color: var(--title); font-weight: 850; list-style: none; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-size: 25px; color: var(--primary); }
details[open] summary::after { content: "−"; }
details p { padding: 0 22px 22px; margin: 0; color: var(--muted); }
.notice-band { padding: 34px; border-radius: 28px; background: linear-gradient(135deg,#FFF4D6,#F0F6FF 58%,#FCEEFF); border: 1px solid rgba(255,200,87,.4); }
.notice-band h2 { font-size: clamp(27px,3.5vw,40px); }
.notice-band p:last-child { margin-bottom: 0; }
.inner-hero { position: relative; overflow: hidden; padding: 72px 0 62px; background: radial-gradient(circle at 15% 16%,rgba(122,92,255,.18),transparent 33%), radial-gradient(circle at 84% 26%,rgba(0,212,255,.16),transparent 29%), linear-gradient(145deg,#F9F6FF,#EAF8FF); }
.inner-hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 50px; align-items: center; }
.inner-hero h1 { font-size: clamp(38px,6vw,66px); }
.inner-hero p { color: var(--muted); font-size: 18px; }
.inner-hero img { width: 100%; max-height: 450px; object-fit: contain; filter: drop-shadow(0 24px 36px rgba(25,43,91,.16)); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; color: var(--muted); font-size: 14px; }
.breadcrumbs a { color: var(--primary); text-decoration: none; }
.article-grid { display: grid; grid-template-columns: minmax(0,1fr) 330px; gap: 30px; align-items: start; }
.article-main { display: grid; gap: 24px; }
.prose-card { padding: 32px; }
.prose-card p { color: var(--muted); }
.prose-card p:last-child { margin-bottom: 0; }
.prose-card h2 { font-size: clamp(27px,3vw,38px); }
.prose-card h3 { margin-top: 24px; }
.sidebar { position: sticky; top: 96px; display: grid; gap: 18px; }
.sidebar-card { padding: 23px; }
.sidebar-card h2 { font-size: 22px; }
.sidebar-links { display: grid; gap: 10px; }
.sidebar-links a { padding: 10px 12px; border-radius: 12px; background: #F5F7FF; color: var(--primary); font-weight: 750; text-decoration: none; }
.steps { counter-reset: step; display: grid; gap: 14px; padding: 0; list-style: none; }
.steps li { counter-increment: step; position: relative; padding: 18px 18px 18px 62px; border: 1px solid var(--border); border-radius: 16px; background: #FAFBFF; }
.steps li::before { content: counter(step); position: absolute; left: 18px; top: 18px; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 10px; background: var(--gradient); color: #fff; font-weight: 900; }
.quote-card { padding: 28px; border-radius: 22px; background: linear-gradient(145deg,#EEF2FF,#FFF7FC); border: 1px solid var(--border); }
.quote-card blockquote { margin: 0; color: var(--deep); font-size: 18px; font-weight: 700; }
.quote-card cite { display: block; margin-top: 14px; color: var(--muted); font-style: normal; }
.cta-panel { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 34px; border-radius: 28px; background: #11182F; color: #EEF2FF; overflow: hidden; position: relative; }
.cta-panel::after { content: ""; position: absolute; width: 260px; height: 260px; right: -80px; top: -100px; border-radius: 50%; background: rgba(0,212,255,.18); }
.cta-panel > * { position: relative; z-index: 1; }
.cta-panel h2 { margin-bottom: 8px; color: #fff; font-size: clamp(28px,3vw,40px); }
.cta-panel p { margin-bottom: 0; color: #C9D1EA; }
.site-footer { background: #0B1024; color: #EEF2FF; padding: 66px 0 0; }
.footer-inner { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: .9fr 1.6fr; gap: 70px; }
.footer-brand p { max-width: 420px; color: #B9C2DD; }
.footer-logo { margin-bottom: 18px; }
.footer-links { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.footer-links section { display: grid; align-content: start; gap: 8px; }
.footer-links h2 { margin-bottom: 8px; color: #fff; font-size: 16px; }
.footer-links a { color: #B9C2DD; text-decoration: none; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 48px; padding: 20px; border-top: 1px solid rgba(255,255,255,.08); text-align: center; color: #98A4C4; font-size: 13px; }
.footer-bottom p { margin: 0; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1050px) {
  .nav-core { gap: 2px; }
  .nav-core a { padding: 8px 9px; font-size: 14px; }
  .hero-grid, .inner-hero-grid { gap: 34px; }
  .article-grid { grid-template-columns: 1fr; }
  .sidebar { position: static; grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 42px; }
}
@media (max-width: 860px) {
  body { padding-bottom: 74px; }
  .header-inner { min-height: 66px; padding: 0 14px; gap: 10px; }
  .mobile-menu-toggle { display: inline-flex; order: 0; }
  .site-logo { order: 1; margin-right: auto; }
  .site-logo span { display: none; }
  .site-logo img { width: 40px; height: 40px; }
  .nav-core, .desktop-menu-toggle { display: none; }
  .header-actions { order: 2; }
  .header-cta { min-height: 40px; padding: 0 16px; font-size: 14px; }
  .hero { padding-top: 52px; }
  .hero-grid, .inner-hero-grid, .split, .dual-grid, .safety-grid { grid-template-columns: 1fr; }
  .split.reverse .media { order: 0; }
  .hero-visual { max-width: 620px; margin: 0 auto; }
  .highlight-grid { grid-template-columns: 1fr 1fr; }
  .highlight-item:nth-child(2) { border-right: 0; }
  .feature-grid, .triple-grid, .review-grid { grid-template-columns: 1fr 1fr; }
  .zone-card img { height: 280px; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .mobile-bottom-nav { position: fixed; left: max(12px,env(safe-area-inset-left)); right: max(12px,env(safe-area-inset-right)); bottom: max(10px,env(safe-area-inset-bottom)); z-index: 9800; display: grid; grid-template-columns: repeat(4,1fr); min-height: 62px; padding: 7px; border: 1px solid rgba(91,108,255,.18); border-radius: 20px; background: rgba(255,255,255,.94); box-shadow: 0 18px 40px rgba(25,43,91,.22); backdrop-filter: blur(12px); }
  .mobile-bottom-nav a { display: grid; justify-items: center; align-content: center; gap: 1px; color: var(--muted); text-decoration: none; border-radius: 14px; }
  .mobile-bottom-nav a.active { color: var(--primary); background: #F0F2FF; }
  .mobile-bottom-nav span { font-weight: 900; }
  .mobile-bottom-nav small { font-size: 11px; }
}
@media (max-width: 620px) {
  .container { width: min(100% - 28px, var(--max)); }
  .section { padding: 66px 0; }
  .section-sm { padding: 44px 0; }
  h1 { font-size: 46px; }
  .hero-subtitle { font-size: 28px; }
  .hero-copy { font-size: 16px; }
  .hero-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .hero-actions a { padding: 0 14px; }
  .floating-card { position: static; max-width: none; margin-top: 10px; }
  .highlight-grid, .feature-grid, .triple-grid, .review-grid, .sidebar, .footer-links { grid-template-columns: 1fr; }
  .highlight-item { border-right: 0; border-bottom: 1px solid rgba(91,108,255,.12); }
  .highlight-item:last-child { border-bottom: 0; }
  .pill-link { flex-basis: 100%; }
  .zone-card img, .info-card img, .safety-card img { height: auto; max-height: 330px; }
  .prose-card { padding: 24px; }
  .cta-panel { align-items: flex-start; flex-direction: column; padding: 28px; }
  .drawer-nav { grid-template-columns: 1fr; }
  .site-drawer { padding: 20px; }
}