:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #E8F7FF;
    --primary: #10AEEA;
    --primary-deep: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --footer: #073A68;
    --line: #D5ECF8;
    --shadow: 0 18px 45px rgba(20, 104, 158, .11);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --gradient: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--text);
    background: var(--bg);
    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; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 9999; padding: 10px 16px; background: #fff; color: var(--primary-deep); border-radius: 10px; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,.96); border-bottom: 1px solid rgba(19, 117, 179, .10); backdrop-filter: blur(14px); }
.header-inner { min-height: 76px; display: flex; align-items: center; gap: 22px; }
.brand-logo { flex: 0 0 auto; width: 136px; }
.brand-logo img { width: 100%; max-height: 48px; object-fit: contain; }
.desktop-nav { min-width: 0; flex: 1 1 auto; display: flex; align-items: center; justify-content: center; gap: clamp(10px, 1.2vw, 20px); white-space: nowrap; }
.desktop-nav a { position: relative; color: #35546C; font-size: 14px; font-weight: 700; padding: 27px 0 24px; }
.desktop-nav a::after { content: ""; position: absolute; left: 50%; bottom: 18px; width: 0; height: 3px; transform: translateX(-50%); border-radius: 99px; background: var(--gradient); transition: width .25s ease; }
.desktop-nav a:hover, .desktop-nav a.is-active { color: var(--primary-deep); }
.desktop-nav a:hover::after, .desktop-nav a.is-active::after { width: 24px; }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.main-btn, .outline-btn, .text-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 22px; border-radius: 999px; font-weight: 800; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.main-btn { color: #fff; background: var(--gradient); box-shadow: 0 10px 24px rgba(22, 136, 216, .22); }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 15px 30px rgba(22, 136, 216, .28); }
.outline-btn { color: var(--primary-deep); border: 1px solid #BDE7F8; background: #fff; }
.text-btn { min-height: auto; padding: 0; color: var(--primary-deep); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 0; border-radius: 13px; background: var(--surface-soft); }
.menu-toggle span { display: block; width: 100%; height: 2px; margin: 5px 0; background: var(--primary-deep); border-radius: 99px; }
.drawer-overlay { position: fixed; inset: 0; z-index: 1100; background: rgba(7, 58, 104, .46); }
.mobile-drawer { position: fixed; top: 0; right: 0; z-index: 1200; width: min(360px, 88vw); height: 100dvh; padding: 20px; background: #fff; transform: translateX(105%); transition: transform .28s ease; overflow-y: auto; box-shadow: -18px 0 50px rgba(7, 58, 104, .18); }
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid var(--line); color: var(--primary-deep); font-size: 20px; }
.drawer-close { width: 40px; height: 40px; border: 0; border-radius: 12px; color: var(--primary-deep); background: var(--surface-soft); font-size: 26px; line-height: 1; }
.mobile-nav { display: grid; gap: 7px; padding-top: 16px; }
.mobile-nav a { padding: 11px 14px; border-radius: 12px; color: #35546C; font-weight: 700; }
.mobile-nav a:hover, .mobile-nav a.is-active { color: var(--primary-deep); background: var(--surface-soft); }
main { min-height: 60vh; }
.section { padding: 78px 0; }
.section-sm { padding: 54px 0; }
.section-soft { background: var(--surface-soft); }
.section-white { background: var(--surface); }
.section-heading { max-width: 760px; margin-bottom: 34px; }
.section-heading.center { margin-inline: auto; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 10px; color: var(--primary); font-weight: 800; letter-spacing: .08em; font-size: 13px; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 22px; height: 3px; border-radius: 99px; background: var(--gradient); }
h1, h2, h3 { margin-top: 0; color: var(--primary-deep); line-height: 1.28; }
h1 { font-size: clamp(34px, 5vw, 58px); letter-spacing: -.035em; }
h2 { font-size: clamp(28px, 3.4vw, 42px); letter-spacing: -.02em; }
h3 { font-size: 21px; }
p { margin-top: 0; }
.lead { color: #3D5C73; font-size: clamp(17px, 2vw, 20px); line-height: 1.85; }
.muted { color: var(--muted); }
.hero-slider-wrap { padding: 26px 0 0; background: linear-gradient(180deg, #fff 0%, var(--bg) 100%); }
.hero-slider { position: relative; width: min(1460px, calc(100% - 32px)); margin-inline: auto; border-radius: 30px; overflow: hidden; background: #DDF4FF; box-shadow: var(--shadow); }
.slides { display: flex; transition: transform .55s cubic-bezier(.22,.61,.36,1); }
.slide { flex: 0 0 100%; min-width: 0; aspect-ratio: 16 / 6; display: grid; place-items: center; background: #E7F8FF; }
.slide img { width: 100%; height: 100%; object-fit: contain; }
.slider-arrow { position: absolute; top: 50%; z-index: 3; width: 46px; height: 46px; border: 1px solid rgba(255,255,255,.65); border-radius: 50%; transform: translateY(-50%); color: #fff; background: rgba(7,58,104,.42); backdrop-filter: blur(8px); font-size: 24px; }
.slider-arrow:hover { background: rgba(7,58,104,.64); }
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.slider-dots { position: absolute; left: 50%; bottom: 16px; z-index: 3; display: flex; gap: 8px; transform: translateX(-50%); }
.slider-dot { width: 9px; height: 9px; padding: 0; border: 0; border-radius: 50%; background: rgba(255,255,255,.68); box-shadow: 0 0 0 1px rgba(7,58,104,.14); }
.slider-dot.is-active { width: 26px; border-radius: 99px; background: #fff; }
.intro-panel { display: grid; grid-template-columns: 1.3fr .7fr; gap: 30px; align-items: center; padding: 38px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: linear-gradient(135deg, #fff 0%, #F1FBFF 100%); box-shadow: var(--shadow); }
.intro-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.intro-points { display: grid; gap: 12px; }
.intro-point { padding: 16px 18px; border-radius: 16px; color: var(--primary-deep); background: rgba(255,255,255,.82); border: 1px solid #D3ECF8; font-weight: 800; }
.quick-scroll { display: flex; gap: 12px; overflow-x: auto; padding: 2px 2px 14px; scrollbar-width: thin; }
.quick-scroll a { flex: 0 0 auto; padding: 11px 19px; border: 1px solid #C8E9F8; border-radius: 999px; color: var(--primary-deep); background: #fff; font-weight: 800; box-shadow: 0 8px 24px rgba(21,90,157,.07); }
.quick-scroll a:hover { color: #fff; background: var(--gradient); border-color: transparent; }
.grid-2, .grid-3, .grid-4 { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.info-card, .feature-card, .review-card, .faq-card, .service-card { height: 100%; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; box-shadow: 0 14px 36px rgba(21,90,157,.07); }
.info-card, .feature-card, .review-card, .service-card { padding: 25px; }
.info-card .number { display: inline-grid; place-items: center; width: 42px; height: 42px; margin-bottom: 16px; border-radius: 14px; color: #fff; background: var(--gradient); font-weight: 900; }
.feature-card { position: relative; overflow: hidden; }
.feature-card::after { content: ""; position: absolute; right: -24px; bottom: -30px; width: 96px; height: 96px; border-radius: 50%; background: rgba(53,215,255,.10); }
.feature-card p, .info-card p, .service-card p { color: var(--muted); }
.media-card { display: grid; grid-template-columns: 1fr 1fr; min-height: 400px; overflow: hidden; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; box-shadow: var(--shadow); }
.media-card.reverse .media-content { order: 2; }
.media-card.reverse .media-visual { order: 1; }
.media-content { display: flex; flex-direction: column; justify-content: center; padding: clamp(30px, 5vw, 58px); }
.media-content ul { margin: 8px 0 24px; padding-left: 20px; color: var(--muted); }
.media-visual { min-height: 320px; display: grid; place-items: center; padding: 24px; background: linear-gradient(145deg, #DBF5FF 0%, #F7FCFF 100%); }
.media-visual img { width: 100%; height: 100%; max-height: 460px; object-fit: contain; }
.triple-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; box-shadow: 0 14px 36px rgba(21,90,157,.07); }
.triple-card .visual { height: 210px; display: grid; place-items: center; padding: 18px; background: linear-gradient(145deg, #E1F7FF, #fff); }
.triple-card .visual img { width: 100%; height: 100%; object-fit: contain; }
.triple-card .body { padding: 24px; }
.app-banner { display: grid; grid-template-columns: 1.1fr .9fr; align-items: center; gap: 30px; padding: clamp(32px, 5vw, 58px); border-radius: 34px; color: #fff; background: linear-gradient(125deg, #0B4E8C 0%, #0FA9E6 58%, #35D7FF 100%); box-shadow: 0 24px 55px rgba(15,129,197,.22); overflow: hidden; }
.app-banner h2, .app-banner h3 { color: #fff; }
.app-banner p { color: #EAF8FF; }
.app-banner .main-btn { background: #fff; color: var(--primary-deep); }
.app-banner-image { height: 290px; display: grid; place-items: center; }
.app-banner-image img { width: 100%; height: 100%; object-fit: contain; }
.safety-layout { display: grid; grid-template-columns: 1fr .85fr; gap: 28px; align-items: stretch; }
.safety-visual { min-height: 390px; display: grid; place-items: center; padding: 26px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--line); }
.safety-visual img { width: 100%; height: 100%; object-fit: contain; }
.safety-stack { display: grid; gap: 15px; }
.safety-note { padding: 22px; border-left: 4px solid var(--primary); border-radius: 0 18px 18px 0; background: #fff; box-shadow: 0 10px 28px rgba(21,90,157,.07); }
.review-card .reviewer { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 12px; color: var(--primary-deep); font-weight: 900; }
.review-card .tag { color: var(--primary); font-size: 13px; }
.faq-list { display: grid; gap: 14px; }
.faq-card { overflow: hidden; }
.faq-card summary { cursor: pointer; list-style: none; padding: 20px 24px; color: var(--primary-deep); font-weight: 900; }
.faq-card summary::-webkit-details-marker { display: none; }
.faq-card summary::after { content: "+"; float: right; color: var(--primary); font-size: 24px; }
.faq-card[open] summary::after { content: "−"; }
.faq-card .answer { padding: 0 24px 22px; color: var(--muted); }
.page-hero { padding: 72px 0 54px; background: radial-gradient(circle at 90% 10%, rgba(53,215,255,.24), transparent 28%), linear-gradient(180deg, #fff 0%, var(--bg) 100%); }
.page-hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 42px; align-items: center; }
.page-hero-grid.no-image { grid-template-columns: 1fr; }
.page-hero-grid.no-image .hero-copy { max-width: 860px; }
.page-hero .hero-copy { max-width: 710px; }
.page-hero .hero-copy p { color: #45667C; font-size: 18px; }
.page-hero-image { min-height: 360px; display: grid; place-items: center; padding: 28px; border: 1px solid var(--line); border-radius: 30px; background: #fff; box-shadow: var(--shadow); }
.page-hero-image img { width: 100%; height: 100%; max-height: 440px; object-fit: contain; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; color: var(--muted); font-size: 14px; }
.breadcrumbs a { color: var(--primary-deep); font-weight: 700; }
.content-split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 34px; align-items: center; }
.content-split.reverse { grid-template-columns: 1.1fr .9fr; }
.content-split.reverse .content-image { order: 2; }
.content-image { min-height: 340px; display: grid; place-items: center; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; }
.content-image img { width: 100%; height: 100%; max-height: 410px; object-fit: contain; }
.check-list { display: grid; gap: 12px; margin: 20px 0; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 28px; color: #49677C; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--primary); font-weight: 900; }
.notice-panel { padding: 30px; border: 1px solid #BEE6F7; border-radius: var(--radius-md); background: linear-gradient(135deg, #EAF9FF 0%, #fff 100%); }
.notice-panel h2, .notice-panel h3 { margin-bottom: 10px; }
.service-steps { counter-reset: step; display: grid; gap: 18px; }
.service-step { position: relative; padding: 24px 24px 24px 76px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; }
.service-step::before { counter-increment: step; content: counter(step); position: absolute; left: 22px; top: 22px; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 13px; color: #fff; background: var(--gradient); font-weight: 900; }
.link-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.link-list a { padding: 18px; border: 1px solid var(--line); border-radius: 16px; color: var(--primary-deep); background: #fff; font-weight: 800; }
.link-list a:hover { border-color: #8FD7F2; transform: translateY(-1px); }
.legal-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.legal-strip div { padding: 18px; border-radius: 16px; color: #385A72; background: #fff; border: 1px solid var(--line); }
.site-footer { padding-top: 60px; color: #EAF8FF; background: var(--footer); }
.footer-grid { display: grid; grid-template-columns: 1.35fr .8fr .8fr 1.15fr; gap: 34px; }
.site-footer h2 { color: #fff; font-size: 19px; }
.site-footer p { color: #CDE8F6; }
.footer-links { display: grid; gap: 9px; }
.footer-links a { color: #DDF4FF; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 42px; padding: 22px 0; border-top: 1px solid rgba(255,255,255,.14); font-size: 14px; }
.footer-bottom p { margin: 0; }
@media (max-width: 1180px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: block; }
    .header-inner { justify-content: space-between; }
}
@media (max-width: 920px) {
    .section { padding: 60px 0; }
    .intro-panel, .page-hero-grid, .app-banner, .safety-layout, .content-split, .content-split.reverse { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .media-card { grid-template-columns: 1fr; }
    .media-card.reverse .media-content, .media-card.reverse .media-visual, .content-split.reverse .content-image { order: initial; }
    .media-visual { min-height: 280px; }
    .page-hero-image { min-height: 300px; }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .legal-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .link-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .slide { aspect-ratio: 16 / 7.5; }
}
@media (max-width: 620px) {
    .container { width: min(100% - 28px, 1180px); }
    .header-inner { min-height: 68px; gap: 10px; }
    .brand-logo { width: 112px; }
    .header-actions { gap: 7px; }
    .header-actions .main-btn { min-height: 40px; padding: 0 16px; }
    .menu-toggle { width: 40px; height: 40px; }
    .hero-slider { width: calc(100% - 20px); border-radius: 20px; }
    .slide { aspect-ratio: 4 / 3; }
    .slider-arrow { width: 38px; height: 38px; font-size: 20px; }
    .slider-prev { left: 10px; }
    .slider-next { right: 10px; }
    .intro-panel { padding: 25px; }
    .grid-2, .grid-3, .grid-4, .footer-grid, .legal-strip, .link-list { grid-template-columns: 1fr; }
    .media-content { padding: 28px 24px; }
    .media-visual { min-height: 235px; padding: 16px; }
    .app-banner { padding: 28px 24px; border-radius: 24px; }
    .app-banner-image { height: 220px; }
    .page-hero { padding: 50px 0 38px; }
    .page-hero-image { min-height: 235px; padding: 18px; }
    .content-image { min-height: 250px; }
    .footer-bottom { flex-direction: column; }
    .section-heading { margin-bottom: 26px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}