:root {
  --bg: #F5F7FF;
  --ink: #1F2740;
  --muted: #66708A;
  --soft: #9AA4BA;
  --title: #131A35;
  --brand: #5B6CFF;
  --brand-2: #7A5CFF;
  --cyan: #00D4FF;
  --gold: #FFC857;
  --danger: #D94F70;
  --nav: rgba(12,18,40,.94);
  --footer: #0B1024;
  --card: #fff;
  --line: rgba(91,108,255,.18);
  --shadow: 0 20px 46px rgba(25,43,91,.14);
  --radius: 22px;
  --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", 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(--brand-2); }
img { max-width: 100%; height: auto; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; top: -80px; left: 16px; z-index: 12000; padding: 10px 16px; color: #fff; background: var(--brand); 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: var(--max); min-height: 72px; margin: 0 auto; padding: 0 22px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; color: #fff; white-space: nowrap; }
.site-logo:hover { color: #fff; }
.site-logo img { width: auto; max-width: 120px; max-height: 44px; display: block; object-fit: contain; }
.site-logo strong { font-size: 20px; letter-spacing: .04em; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 6px; flex: 1; }
.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; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 24px; 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,.3); }
.main-btn.compact { min-height: 40px; padding: 0 18px; font-size: 14px; }
.secondary-btn { display: inline-flex; align-items: center; min-height: 46px; padding: 0 22px; border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--brand); font-weight: 700; }
.menu-toggle { width: 42px; height: 42px; padding: 10px; border: 0; border-radius: 50%; background: rgba(255,255,255,.1); cursor: pointer; display: inline-flex; flex-direction: column; justify-content: center; gap: 4px; }
.menu-toggle span { display: block; height: 2px; width: 100%; background: #fff; border-radius: 2px; }
.mobile-menu-toggle { display: none; }
.drawer-mask { position: fixed; inset: 0; z-index: 10000; background: rgba(6,10,24,.58); backdrop-filter: blur(2px); }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(390px, 92vw); height: 100dvh; padding: 24px; background: #fff; box-shadow: -18px 0 60px rgba(11,16,36,.25); transform: translateX(105%); transition: transform .26s ease; overflow-y: auto; }
.site-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.drawer-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--title); font-size: 20px; font-weight: 800; }
.drawer-brand img { max-width: 108px; max-height: 40px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; color: var(--title); background: #EEF1FF; font-size: 26px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 24px 0; }
.drawer-nav a { padding: 11px 13px; border-radius: 12px; background: #F5F7FF; color: var(--ink); font-weight: 600; }
.drawer-nav a:hover { background: #EAF7FF; color: var(--brand); }
.drawer-note { padding: 18px; border-radius: 18px; background: linear-gradient(145deg,#EFF8FF,#FFF4D6); }
.drawer-note p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
main { display: block; }
.container { width: min(var(--max), calc(100% - 44px)); margin: 0 auto; }
.section { padding: 82px 0; }
.section.tight { padding: 56px 0; }
.section.alt { background: #EFF8FF; }
.section.dark { color: #EEF2FF; background: linear-gradient(135deg,#11182F,#16213E); }
.section.dark h2, .section.dark h3 { color: #fff; }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 10px; color: var(--brand); font-weight: 800; font-size: 14px; letter-spacing: .08em; }
.section-kicker::before { content: ""; width: 24px; height: 3px; border-radius: 99px; background: linear-gradient(90deg,var(--brand),var(--cyan)); }
h1,h2,h3,.section-title { margin-top: 0; color: var(--title); line-height: 1.25; }
h1 { font-size: clamp(42px,6vw,78px); letter-spacing: -.04em; }
h2 { font-size: clamp(28px,4vw,44px); letter-spacing: -.025em; }
h3 { font-size: 21px; }
p { margin: 0 0 1em; }
.lead { color: var(--muted); font-size: 18px; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.hero { position: relative; padding: 84px 0 74px; overflow: hidden; background: radial-gradient(circle at 15% 20%,rgba(122,92,255,.22),transparent 35%), radial-gradient(circle at 88% 28%,rgba(0,212,255,.2),transparent 30%), linear-gradient(145deg,#F7F5FF 0%,#EAF7FF 55%,#FFF1F7 100%); }
.hero::after { content: ""; position: absolute; width: 360px; height: 360px; right: -170px; bottom: -190px; border-radius: 50%; border: 54px solid rgba(91,108,255,.08); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.02fr .98fr; gap: 58px; align-items: center; }
.hero h1 { margin-bottom: 12px; }
.hero-subtitle { margin: 0 0 22px; color: var(--brand-2); font-size: clamp(24px,3.2vw,38px); font-weight: 800; line-height: 1.3; }
.hero-copy { max-width: 680px; color: var(--muted); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 30px 0; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; padding: 0; list-style: none; }
.hero-points li { padding: 8px 13px; border: 1px solid rgba(91,108,255,.16); border-radius: 999px; background: rgba(255,255,255,.76); color: var(--title); font-weight: 700; font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual img { display: block; width: 100%; max-height: 620px; object-fit: contain; filter: drop-shadow(0 28px 35px rgba(40,51,108,.22)); }
.float-chip { position: absolute; padding: 12px 16px; border: 1px solid rgba(255,255,255,.8); border-radius: 16px; background: rgba(255,255,255,.88); box-shadow: var(--shadow); color: var(--title); font-weight: 800; backdrop-filter: blur(8px); }
.float-chip.one { left: -20px; top: 15%; }
.float-chip.two { right: -10px; bottom: 14%; }
.feature-strip { position: relative; z-index: 2; margin-top: -28px; }
.feature-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.feature-item { padding: 24px; border: 1px solid var(--line); border-radius: 20px; background: #fff; box-shadow: 0 14px 35px rgba(25,43,91,.1); }
.feature-item strong { display: block; margin-bottom: 5px; color: var(--title); font-size: 18px; }
.feature-item p { margin: 0; color: var(--muted); font-size: 14px; }
.pill-nav { display: flex; flex-wrap: wrap; gap: 12px; }
.pill-nav a { flex: 1 1 190px; min-height: 96px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 20px; background: #fff; box-shadow: 0 12px 28px rgba(25,43,91,.08); }
.pill-nav strong { display: block; color: var(--title); }
.pill-nav span { display: block; margin-top: 5px; color: var(--muted); font-size: 13px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
.split.reverse .media { order: 2; }
.media img, .content-img { display: block; width: 100%; max-height: 560px; object-fit: contain; border-radius: var(--radius); }
.media.frame { padding: 22px; border: 1px solid var(--line); border-radius: 30px; background: linear-gradient(145deg,#fff,#EFF8FF); box-shadow: var(--shadow); }
.media.frame .mini-banner { margin-top: 16px; max-height: 180px; object-fit: contain; }
.card-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.card-grid.four { grid-template-columns: repeat(4,1fr); }
.card, .zone-card, .info-card, .review-card { padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.card img, .zone-card img { display: block; width: 100%; height: 220px; margin-bottom: 18px; object-fit: contain; border-radius: 18px; background: #F5F7FF; }
.card p, .zone-card p, .info-card p { color: var(--muted); }
.text-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; font-weight: 800; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(3px); }
.service-points { display: grid; gap: 12px; margin: 24px 0; }
.service-point { padding: 15px 17px; border-left: 4px solid var(--cyan); border-radius: 0 14px 14px 0; background: #F5F7FF; }
.service-point strong { color: var(--title); }
.service-point p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.security-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.security-card { display: grid; grid-template-columns: 160px 1fr; gap: 24px; align-items: center; padding: 28px; border: 1px solid var(--line); border-radius: 26px; background: #fff; box-shadow: var(--shadow); }
.security-card img { width: 160px; max-height: 180px; object-fit: contain; }
.review-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.review-card p { color: var(--muted); }
.review-card footer { display: flex; align-items: center; gap: 10px; margin-top: 16px; color: var(--title); font-weight: 800; }
.review-card footer::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: linear-gradient(135deg,var(--brand),var(--cyan)); }
.faq-list { display: grid; gap: 14px; }
details { border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: 0 10px 26px rgba(25,43,91,.07); }
summary { padding: 18px 22px; color: var(--title); font-weight: 800; cursor: pointer; }
details p { padding: 0 22px 20px; color: var(--muted); }
.notice { padding: 26px; border: 1px solid rgba(255,200,87,.55); border-radius: 22px; background: linear-gradient(135deg,#FFF9E9,#FFF1F6); }
.notice h2, .notice h3 { margin-bottom: 8px; }
.page-hero { padding: 70px 0 58px; background: radial-gradient(circle at 90% 10%,rgba(0,212,255,.18),transparent 28%), linear-gradient(140deg,#F6F4FF,#EAF7FF); }
.page-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 46px; }
.page-hero h1 { font-size: clamp(38px,5.2vw,64px); }
.page-hero img { display: block; width: 100%; max-height: 420px; object-fit: contain; filter: drop-shadow(0 20px 30px rgba(40,51,108,.18)); }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; color: var(--muted); font-size: 14px; }
.breadcrumbs a { color: var(--brand); }
.prose { max-width: 820px; }
.prose.wide { max-width: none; }
.prose p { color: var(--muted); }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.step { position: relative; padding: 26px 22px 22px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.step::before { counter-increment: step; content: counter(step, decimal-leading-zero); display: block; margin-bottom: 14px; color: var(--brand); font-size: 28px; font-weight: 900; }
.quote-panel { padding: 34px; border-radius: 28px; color: #EEF2FF; background: linear-gradient(135deg,#16213E,#4E4BCF); box-shadow: var(--shadow); }
.quote-panel blockquote { margin: 0; font-size: 20px; line-height: 1.75; }
.quote-panel cite { display: block; margin-top: 16px; color: #C9D2FF; font-style: normal; }
.site-footer { padding: 64px 0 0; color: #EEF2FF; background: var(--footer); }
.footer-inner { width: min(var(--max),calc(100% - 44px)); margin: 0 auto; display: grid; grid-template-columns: 1.1fr 2fr; gap: 60px; }
.footer-brand p { max-width: 430px; margin-top: 18px; color: #AEB8D4; }
.footer-logo { width: max-content; }
.footer-links { display: grid; grid-template-columns: repeat(4,1fr); gap: 30px; }
.footer-links h2 { margin-bottom: 14px; color: #fff; font-size: 16px; }
.footer-links a { display: block; margin: 9px 0; color: #BFC8E5; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 46px; padding: 20px 22px; border-top: 1px solid rgba(255,255,255,.09); text-align: center; color: #9BA7C7; font-size: 13px; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1080px) {
  .nav-core a:nth-child(3), .nav-core a:nth-child(4) { display: none; }
  .hero-grid, .page-hero-grid { gap: 32px; }
  .card-grid.four { grid-template-columns: repeat(2,1fr); }
  .feature-grid { grid-template-columns: repeat(2,1fr); }
  .security-panel { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  body { padding-bottom: 72px; }
  .header-inner { min-height: 64px; padding: 0 14px; gap: 10px; }
  .nav-core, .desktop-menu-toggle { display: none; }
  .mobile-menu-toggle { display: inline-flex; }
  .site-logo { position: absolute; left: 50%; transform: translateX(-50%); }
  .site-logo img { max-width: 84px; max-height: 36px; }
  .site-logo strong { display: none; }
  .header-actions { margin-left: auto; }
  .main-btn.compact { min-height: 38px; padding: 0 14px; font-size: 13px; }
  .hero { padding: 54px 0 60px; }
  .hero-grid, .page-hero-grid, .split { grid-template-columns: 1fr; }
  .hero-visual { max-width: 620px; margin: 0 auto; }
  .split.reverse .media { order: initial; }
  .card-grid, .review-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 9000; display: grid; grid-template-columns: repeat(4,1fr); padding: 7px 8px calc(7px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line); background: rgba(255,255,255,.94); backdrop-filter: blur(12px); box-shadow: 0 -8px 24px rgba(25,43,91,.1); }
  .mobile-bottom-nav a { display: flex; flex-direction: column; align-items: center; gap: 1px; color: var(--muted); font-size: 12px; }
  .mobile-bottom-nav span { color: var(--brand); font-size: 18px; line-height: 1.2; }
}
@media (max-width: 560px) {
  .container { width: min(100% - 28px,var(--max)); }
  .section { padding: 60px 0; }
  .section.tight { padding: 42px 0; }
  h1 { font-size: 42px; }
  .hero-subtitle { font-size: 25px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .main-btn, .secondary-btn { width: 100%; }
  .feature-grid, .card-grid, .card-grid.four, .review-grid, .steps { grid-template-columns: 1fr; }
  .feature-strip { margin-top: -18px; }
  .pill-nav a { flex-basis: 100%; }
  .security-card { grid-template-columns: 1fr; }
  .security-card img { width: 100%; max-height: 220px; }
  .float-chip { position: static; display: inline-block; margin: 8px 8px 0 0; }
  .footer-links { grid-template-columns: 1fr 1fr; gap: 22px; }
  .site-drawer { left: 0; right: auto; transform: translateX(-105%); }
  .drawer-nav { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}