:root {
  --bg: #F5F7FF;
  --nav: rgba(12,18,40,0.94);
  --title: #131A35;
  --brand: #5B6CFF;
  --deep: #16213E;
  --cyan: #00D4FF;
  --gold: #FFC857;
  --rose: #D94F70;
  --violet: #7A5CFF;
  --text: #1F2740;
  --muted: #66708A;
  --light-muted: #9AA4BA;
  --card: #FFFFFF;
  --dark-card: #11182F;
  --line: rgba(91,108,255,0.18);
  --shadow: 0 20px 46px rgba(25,43,91,0.14);
  --gradient: linear-gradient(135deg, #5B6CFF 0%, #7A5CFF 48%, #00D4FF 100%);
}
* { 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", 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(--violet); }
img { max-width: 100%; height: auto; }
button, input, textarea { font: inherit; }
.skip-link { position: fixed; left: 12px; top: -100px; z-index: 12000; background: #fff; padding: 8px 14px; border-radius: 8px; }
.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(25,43,91,0.16); }
.header-inner { max-width: 1280px; margin: 0 auto; min-height: 72px; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; gap: 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: 46px; max-height: 44px; display: block; object-fit: contain; }
.site-logo strong { font-size: 20px; letter-spacing: .5px; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 8px; }
.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(0,212,255,0.16); }
.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-radius: 999px; background: var(--gradient); color: #fff; font-weight: 700; box-shadow: 0 14px 32px rgba(91,108,255,0.22); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 18px 38px rgba(91,108,255,0.3); }
.menu-toggle { width: 44px; height: 44px; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; 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: 2px; background: #fff; }
.mobile-menu-toggle { display: none; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(7,11,27,.56); backdrop-filter: blur(2px); }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(390px, 88vw); height: 100dvh; overflow-y: auto; padding: 24px; background: #fff; box-shadow: -18px 0 60px rgba(11,16,36,.25); transform: translateX(105%); transition: transform .28s ease; }
.site-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.drawer-brand { display: flex; align-items: center; gap: 10px; color: var(--title); }
.drawer-brand img { width: 42px; max-height: 42px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: #EEF0FF; color: var(--title); font-size: 28px; cursor: pointer; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; }
.drawer-nav a { padding: 12px 14px; color: var(--text); background: #F6F7FF; border: 1px solid var(--line); border-radius: 14px; }
.drawer-nav a:hover { color: var(--brand); background: #EFF8FF; }
.drawer-note { margin-top: 22px; padding: 18px; border-radius: 18px; background: linear-gradient(135deg,#EEF0FF,#EAFBFF); color: var(--muted); }
.drawer-note strong { color: var(--title); }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.section { padding: 82px 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 { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 10px; color: var(--violet); font-size: 14px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.section-kicker::before { content: ''; width: 28px; height: 3px; border-radius: 999px; background: var(--gradient); }
h1, h2, h3, .section-title { color: var(--title); line-height: 1.28; margin-top: 0; }
h1 { font-size: clamp(42px, 7vw, 78px); margin-bottom: 18px; letter-spacing: -1.5px; }
h2 { font-size: clamp(28px, 4vw, 44px); margin-bottom: 16px; }
h3 { font-size: 21px; margin-bottom: 10px; }
p { margin-top: 0; }
.lead { color: var(--muted); font-size: 18px; line-height: 1.9; }
.hero { position: relative; overflow: hidden; padding: 86px 0 72px; background: radial-gradient(circle at 12% 15%, rgba(122,92,255,.22), transparent 32%), radial-gradient(circle at 88% 25%, rgba(0,212,255,.22), transparent 30%), linear-gradient(145deg,#F9F4FF 0%,#F5F7FF 44%,#EAFBFF 100%); }
.hero::after { content: ''; position: absolute; width: 460px; height: 460px; right: -180px; bottom: -250px; border-radius: 50%; border: 70px solid rgba(255,200,87,.13); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.03fr .97fr; align-items: center; gap: 56px; }
.hero-copy { max-width: 650px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 20px; padding: 8px 14px; color: var(--violet); background: rgba(255,255,255,.75); border: 1px solid var(--line); border-radius: 999px; font-weight: 700; }
.hero-subtitle { font-size: clamp(22px,3vw,34px); font-weight: 800; color: var(--deep); margin-bottom: 18px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 16px; margin-top: 28px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; }
.text-link::after { content: '→'; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(4px); }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin: 24px 0 0; padding: 0; list-style: none; }
.hero-points li { padding: 8px 13px; border-radius: 999px; color: var(--deep); background: rgba(255,255,255,.72); border: 1px solid rgba(91,108,255,.14); font-size: 14px; }
.hero-visual { position: relative; }
.hero-visual::before { content: ''; position: absolute; inset: 10% -3% -4% 8%; border-radius: 48px; background: var(--gradient); opacity: .15; filter: blur(2px); transform: rotate(-4deg); }
.hero-visual img { position: relative; z-index: 1; display: block; width: 100%; max-height: 590px; object-fit: contain; filter: drop-shadow(0 26px 35px rgba(25,43,91,.22)); }
.highlight-bar { position: relative; margin-top: -22px; z-index: 3; }
.highlight-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); background: #fff; border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); overflow: hidden; }
.highlight-item { padding: 24px; }
.highlight-item + .highlight-item { border-left: 1px solid var(--line); }
.highlight-item span { display: inline-flex; width: 34px; height: 34px; align-items: center; justify-content: center; margin-bottom: 10px; border-radius: 12px; background: #EEF0FF; color: var(--violet); font-weight: 900; }
.highlight-item p { color: var(--muted); font-size: 14px; margin-bottom: 0; }
.pill-grid { display: flex; flex-wrap: wrap; gap: 12px; }
.pill-link { flex: 1 1 200px; min-height: 86px; padding: 15px 18px; border-radius: 20px; background: #fff; border: 1px solid var(--line); box-shadow: 0 12px 32px rgba(25,43,91,.08); }
.pill-link strong { display: block; color: var(--title); margin-bottom: 4px; }
.pill-link span { display: block; color: var(--muted); font-size: 13px; line-height: 1.55; }
.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 22px; }
.split { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 28px; align-items: stretch; }
.media-card { overflow: hidden; }
.media-card .card-image { padding: 18px 18px 0; }
.media-card img, .content-img, .zone-card img, .app-section img { width: 100%; max-height: 360px; object-fit: contain; border-radius: 18px; background: linear-gradient(135deg,#F3F0FF,#EDFAFF); }
.card-body { padding: 26px; }
.card-body p { color: var(--muted); }
.feature-list { display: grid; gap: 12px; margin: 18px 0 0; padding: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 28px; color: var(--text); }
.feature-list li::before { content: '✓'; position: absolute; left: 0; top: 0; width: 20px; height: 20px; line-height: 20px; text-align: center; border-radius: 50%; color: #fff; background: var(--gradient); font-size: 12px; }
.three-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 24px; }
.info-card { overflow: hidden; }
.info-card img { width: 100%; height: 210px; object-fit: contain; padding: 16px; background: linear-gradient(135deg,#F3F0FF,#EDFAFF); }
.info-card .card-body { padding-top: 22px; }
.security-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; padding: 34px; border-radius: 30px; background: #11182F; color: #EEF2FF; box-shadow: 0 26px 62px rgba(11,16,36,.25); }
.security-panel h2, .security-panel h3 { color: #fff; }
.security-panel p { color: #C5CCE2; }
.security-visuals { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.security-visuals img { width: 100%; height: 100%; min-height: 260px; object-fit: contain; border-radius: 22px; background: rgba(255,255,255,.07); }
.review-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 22px; }
.review-card { padding: 24px; }
.review-card p { color: var(--muted); }
.review-card footer { margin-top: 16px; color: var(--violet); font-weight: 700; }
.faq-list { display: grid; gap: 14px; }
details { background: #fff; border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 10px 28px rgba(25,43,91,.07); overflow: hidden; }
summary { cursor: pointer; padding: 20px 54px 20px 22px; color: var(--title); font-weight: 800; list-style: none; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; position: absolute; right: 22px; top: 17px; font-size: 24px; color: var(--violet); }
details[open] summary::after { content: '−'; }
details p { padding: 0 22px 20px; color: var(--muted); margin: 0; }
.notice { padding: 28px; border-radius: 24px; background: linear-gradient(135deg,#FFF4D6,#EFF8FF); border: 1px solid rgba(255,200,87,.35); }
.notice h2 { font-size: 28px; }
.page-hero { padding: 70px 0 58px; background: radial-gradient(circle at 10% 10%,rgba(122,92,255,.2),transparent 35%),radial-gradient(circle at 90% 20%,rgba(0,212,255,.19),transparent 32%),linear-gradient(145deg,#FAF7FF,#F5F7FF 55%,#EAFBFF); }
.page-hero-grid { display: grid; grid-template-columns: 1fr .82fr; gap: 48px; align-items: center; }
.page-hero h1 { font-size: clamp(38px,6vw,64px); }
.page-hero img { width: 100%; max-height: 440px; object-fit: contain; filter: drop-shadow(0 25px 32px rgba(25,43,91,.18)); }
.article-grid { display: grid; grid-template-columns: minmax(0,1.45fr) minmax(280px,.55fr); gap: 30px; align-items: start; }
.article-card { padding: 32px; }
.article-card p { color: var(--muted); }
.article-card h2:not(:first-child) { margin-top: 36px; }
.side-stack { display: grid; gap: 22px; position: sticky; top: 98px; }
.side-card { padding: 24px; }
.side-card img { width: 100%; max-height: 260px; object-fit: contain; border-radius: 16px; background: linear-gradient(135deg,#F3F0FF,#EDFAFF); }
.steps { counter-reset: step; display: grid; gap: 14px; margin: 18px 0 0; padding: 0; list-style: none; }
.steps li { counter-increment: step; position: relative; padding: 16px 16px 16px 54px; border-radius: 16px; background: #F7F8FF; border: 1px solid var(--line); }
.steps li::before { content: counter(step); position: absolute; left: 16px; top: 15px; width: 26px; height: 26px; line-height: 26px; text-align: center; border-radius: 50%; color: #fff; background: var(--gradient); font-weight: 800; }
.quote-list { display: grid; gap: 14px; }
.quote { padding: 18px; border-left: 4px solid var(--violet); border-radius: 0 14px 14px 0; background: #F7F8FF; color: var(--muted); }
.cta-band { padding: 34px; border-radius: 28px; background: linear-gradient(135deg,#16213E,#312B67 58%,#174E6B); color: #fff; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: #D6DDF3; margin-bottom: 0; max-width: 720px; }
.site-footer { background: #0B1024; color: #EEF2FF; padding-top: 64px; }
.footer-inner { width: min(1180px,calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: .85fr 1.35fr; gap: 60px; }
.footer-brand p { max-width: 420px; color: #AEB7D0; margin-top: 18px; }
.footer-links { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 24px; }
.footer-links h3 { color: #fff; font-size: 16px; }
.footer-links a { display: block; color: #B9C2D9; margin: 8px 0; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-bottom { margin-top: 44px; padding: 20px; border-top: 1px solid rgba(255,255,255,.1); text-align: center; color: #929DBA; font-size: 13px; }
.footer-bottom p { margin: 0; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1050px) {
  .nav-core { display: none; }
  .hero-grid, .page-hero-grid { gap: 28px; }
  .footer-inner { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  body { padding-bottom: 72px; }
  .header-inner { min-height: 64px; padding: 0 14px; }
  .mobile-menu-toggle { display: inline-flex; }
  .desktop-menu-toggle { display: none; }
  .site-logo { position: absolute; left: 50%; transform: translateX(-50%); }
  .site-logo strong { display: none; }
  .site-logo img { max-width: 40px; max-height: 40px; }
  .header-cta { min-height: 40px; padding: 0 15px; font-size: 13px; }
  .hero, .page-hero { padding-top: 54px; }
  .hero-grid, .page-hero-grid, .article-grid, .security-panel, .split { grid-template-columns: 1fr; }
  .hero-copy { text-align: center; margin: 0 auto; }
  .hero-actions, .hero-points { justify-content: center; }
  .hero-visual img { max-height: 450px; }
  .highlight-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .highlight-item + .highlight-item { border-left: 0; }
  .highlight-item:nth-child(even) { border-left: 1px solid var(--line); }
  .highlight-item:nth-child(n+3) { border-top: 1px solid var(--line); }
  .three-grid, .review-grid { grid-template-columns: 1fr; }
  .side-stack { position: static; }
  .security-visuals { min-height: 260px; }
  .footer-links { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .cta-band { align-items: flex-start; flex-direction: column; }
  .mobile-bottom-nav { position: fixed; left: 10px; right: 10px; bottom: 8px; z-index: 9000; display: grid; grid-template-columns: repeat(4,1fr); padding: 7px; border: 1px solid rgba(91,108,255,.2); border-radius: 20px; background: rgba(255,255,255,.94); backdrop-filter: blur(14px); box-shadow: 0 12px 35px rgba(25,43,91,.2); }
  .mobile-bottom-nav a { display: flex; flex-direction: column; align-items: center; gap: 2px; color: var(--muted); font-size: 11px; }
  .mobile-bottom-nav span { color: var(--violet); font-size: 18px; line-height: 1; }
}
@media (max-width: 560px) {
  .container { width: min(100% - 28px,1180px); }
  .section { padding: 62px 0; }
  .section-sm { padding: 42px 0; }
  h1 { font-size: 43px; }
  .lead { font-size: 16px; }
  .highlight-item { padding: 18px; }
  .highlight-item h3 { font-size: 17px; }
  .highlight-item p { font-size: 12px; }
  .pill-link { flex-basis: 100%; }
  .security-panel, .article-card, .cta-band { padding: 24px; }
  .security-visuals { grid-template-columns: 1fr; }
  .security-visuals img { min-height: 190px; }
  .drawer-nav { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr 1fr; gap: 18px; }
}