:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --soft: #E8F7FF;
    --primary: #10AEEA;
    --primary-deep: #1688D8;
    --deep: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --footer: #073A68;
    --line: #CFEAF7;
    --shadow: 0 16px 42px rgba(21, 90, 157, .10);
    --radius: 24px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif; line-height: 1.75; overflow-x: hidden; }
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font: inherit; }
.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 9999; background: #fff; color: var(--deep); padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow); }
.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(207,234,247,.85); backdrop-filter: blur(14px); }
.header-inner { min-height: 78px; display: flex; align-items: center; gap: 22px; }
.brand-logo { flex: 0 0 auto; }
.brand-logo img { width: 154px; max-height: 52px; object-fit: contain; }
.desktop-nav { min-width: 0; flex: 1; display: flex; justify-content: center; align-items: center; gap: 5px; white-space: nowrap; }
.desktop-nav a { padding: 9px 10px; border-radius: 999px; color: #31536E; font-size: 14px; transition: .2s ease; }
.desktop-nav a:hover, .desktop-nav a.active { color: var(--deep); background: var(--soft); }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.main-btn { display: inline-flex; min-height: 42px; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 999px; background: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%); color: #fff; font-weight: 700; box-shadow: 0 10px 24px rgba(22,136,216,.24); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(22,136,216,.30); }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 1px solid var(--line); border-radius: 12px; background: #fff; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--deep); border-radius: 10px; }
.mobile-drawer { position: fixed; top: 0; right: 0; z-index: 1200; width: min(360px, 88vw); height: 100dvh; background: #fff; transform: translateX(105%); transition: transform .25s ease; box-shadow: -18px 0 50px rgba(7,58,104,.2); padding: 18px; overflow-y: auto; }
.mobile-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 6px 2px 18px; border-bottom: 1px solid var(--line); color: var(--deep); font-size: 20px; }
.drawer-head button { border: 0; background: var(--soft); color: var(--deep); border-radius: 12px; width: 40px; height: 40px; cursor: pointer; font-size: 28px; line-height: 1; }
.drawer-nav { display: grid; gap: 4px; padding: 16px 0; }
.drawer-nav a { padding: 11px 14px; border-radius: 12px; color: #31536E; }
.drawer-nav a:hover { background: var(--soft); color: var(--deep); }
.drawer-register { width: 100%; }
.drawer-backdrop { position: fixed; inset: 0; z-index: 1100; background: rgba(3, 35, 63, .48); opacity: 0; transition: opacity .2s ease; }
.drawer-backdrop.show { opacity: 1; }

.hero-carousel { width: min(1440px, 100%); margin: 0 auto; position: relative; background: #DDF4FF; overflow: hidden; }
.carousel-track { position: relative; aspect-ratio: 16 / 6.4; min-height: 260px; }
.carousel-slide { position: absolute; inset: 0; opacity: 0; pointer-events: none; transition: opacity .55s ease; display: grid; place-items: center; background: #E8F7FF; }
.carousel-slide.active { opacity: 1; pointer-events: auto; }
.carousel-slide img { width: 100%; height: 100%; object-fit: contain; }
.carousel-arrow { position: absolute; top: 50%; z-index: 4; transform: translateY(-50%); width: 46px; height: 46px; border: 1px solid rgba(255,255,255,.75); border-radius: 50%; background: rgba(7,58,104,.46); color: #fff; cursor: pointer; font-size: 26px; display: grid; place-items: center; }
.carousel-arrow.prev { left: 20px; }
.carousel-arrow.next { right: 20px; }
.carousel-dots { position: absolute; z-index: 4; left: 50%; bottom: 18px; transform: translateX(-50%); display: flex; gap: 9px; }
.carousel-dot { width: 10px; height: 10px; border: 0; padding: 0; border-radius: 50%; background: rgba(255,255,255,.64); box-shadow: 0 0 0 1px rgba(7,58,104,.12); cursor: pointer; }
.carousel-dot.active { width: 28px; border-radius: 10px; background: #fff; }

.page-hero, .brand-intro { padding: 74px 0 40px; }
.page-hero .hero-card, .brand-intro .hero-card { background: linear-gradient(135deg, #fff 0%, #E8F7FF 100%); border: 1px solid var(--line); border-radius: 30px; padding: clamp(28px, 5vw, 58px); box-shadow: var(--shadow); }
.eyebrow { display: inline-block; margin-bottom: 12px; color: var(--primary-deep); font-size: 14px; font-weight: 800; letter-spacing: .08em; }
h1, h2, h3 { line-height: 1.3; margin-top: 0; color: var(--deep); }
h1 { font-size: clamp(34px, 5vw, 58px); margin-bottom: 18px; }
h2 { font-size: clamp(26px, 3vw, 38px); margin-bottom: 14px; }
h3 { font-size: 20px; margin-bottom: 10px; }
p { margin: 0 0 16px; }
.lead { font-size: 18px; color: #3B617E; max-width: 860px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.text-link { color: var(--primary-deep); font-weight: 700; }
.text-link:hover { text-decoration: underline; }
.section { padding: 42px 0; }
.section.soft { background: var(--soft); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.section-heading p { max-width: 720px; color: var(--muted); margin: 0; }
.quick-scroll { display: flex; gap: 12px; overflow-x: auto; padding: 4px 2px 12px; scrollbar-width: thin; }
.quick-scroll a { flex: 0 0 auto; border: 1px solid var(--line); background: #fff; color: var(--deep); padding: 10px 18px; border-radius: 999px; box-shadow: 0 8px 20px rgba(21,90,157,.06); }
.quick-scroll a:hover { background: var(--deep); color: #fff; }
.grid { 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)); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: 0 12px 30px rgba(21,90,157,.07); }
.card p { color: var(--muted); }
.dashboard-card { min-height: 190px; position: relative; overflow: hidden; }
.dashboard-card::after { content: ""; position: absolute; width: 86px; height: 86px; border-radius: 50%; right: -24px; bottom: -30px; background: linear-gradient(135deg, rgba(53,215,255,.34), rgba(22,136,216,.08)); }
.feature-card { display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 30px; background: #fff; border: 1px solid var(--line); border-radius: 30px; padding: clamp(24px, 4vw, 44px); box-shadow: var(--shadow); }
.feature-card.reverse { grid-template-columns: .85fr 1.15fr; }
.feature-card.reverse .feature-media { order: -1; }
.feature-media { min-width: 0; border-radius: 22px; overflow: hidden; background: var(--soft); min-height: 260px; display: grid; place-items: center; }
.feature-media img { width: 100%; height: 100%; max-height: 430px; object-fit: contain; }
.feature-list { display: grid; gap: 10px; margin: 20px 0; padding: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 20px; color: #45677F; }
.feature-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 8px; border-radius: 50%; background: var(--primary); }
.media-card { overflow: hidden; padding: 0; }
.media-card .media { min-height: 190px; background: var(--soft); display: grid; place-items: center; }
.media-card .media img { width: 100%; height: 100%; max-height: 270px; object-fit: contain; }
.media-card .body { padding: 24px; }
.banner { background: linear-gradient(135deg, #FFFFFF 0%, #DFF6FF 48%, #C9EEFF 100%); border: 1px solid var(--line); border-radius: 30px; padding: clamp(28px, 5vw, 52px); display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 30px; box-shadow: var(--shadow); }
.banner img { width: 100%; max-height: 330px; object-fit: contain; }
.notice { border-left: 5px solid var(--primary); background: #fff; border-radius: 0 18px 18px 0; padding: 20px 22px; color: #45677F; box-shadow: 0 10px 24px rgba(21,90,157,.06); }
.review { position: relative; }
.review::before { content: "“"; display: block; color: #B9EFFF; font-size: 72px; line-height: .7; font-family: Georgia, serif; }
.review strong { color: var(--deep); display: block; margin-top: 16px; }
.faq-list { display: grid; gap: 14px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 20px 22px; }
.faq-item summary { cursor: pointer; font-weight: 800; color: var(--deep); }
.faq-item p { margin: 14px 0 0; color: var(--muted); }
.info-strip { background: #073A68; color: #EAF8FF; border-radius: 24px; padding: 24px; }
.info-strip h2, .info-strip h3 { color: #fff; }
.info-strip p { color: #D8F2FF; }
.steps { counter-reset: item; display: grid; gap: 16px; }
.step { counter-increment: item; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 20px 20px 20px 68px; position: relative; }
.step::before { content: counter(item); position: absolute; left: 20px; top: 20px; width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center; background: var(--soft); color: var(--deep); font-weight: 800; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
table { border-collapse: collapse; width: 100%; min-width: 680px; }
th, td { padding: 15px 18px; border-bottom: 1px solid #E5F2F9; text-align: left; vertical-align: top; }
th { color: var(--deep); background: #F3FBFF; }

.site-footer { margin-top: 50px; background: var(--footer); color: #EAF8FF; padding: 54px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 34px; }
.site-footer h2, .site-footer h3 { color: #fff; }
.site-footer a { display: block; color: #CFEFFF; margin: 8px 0; }
.site-footer a:hover { color: #fff; }
.footer-brand p { color: #CFEFFF; max-width: 460px; }
.compliance-note { margin-top: 34px; padding-top: 24px; border-top: 1px solid rgba(234,248,255,.18); color: #CFEFFF; font-size: 14px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid rgba(234,248,255,.16); margin-top: 20px; padding-top: 18px; color: #B9DBEE; font-size: 14px; }
.footer-bottom a { display: inline; margin: 0; }

@media (max-width: 1179px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: block; }
    .header-inner { min-height: 70px; }
}
@media (max-width: 900px) {
    .shell { width: min(100% - 28px, 760px); }
    .grid-4, .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .feature-card, .feature-card.reverse, .banner { grid-template-columns: 1fr; }
    .feature-card.reverse .feature-media { order: 0; }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .carousel-track { aspect-ratio: 16 / 8.5; }
}
@media (max-width: 640px) {
    .shell { width: calc(100% - 22px); }
    .brand-logo img { width: 126px; }
    .main-btn { padding: 9px 18px; min-height: 40px; }
    .header-actions { gap: 8px; }
    .page-hero, .brand-intro { padding: 36px 0 20px; }
    .section { padding: 30px 0; }
    .section-heading { display: block; }
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .card { padding: 20px; }
    .hero-carousel { border-bottom-left-radius: 18px; border-bottom-right-radius: 18px; }
    .carousel-track { aspect-ratio: 4 / 3; min-height: 220px; }
    .carousel-arrow { width: 38px; height: 38px; font-size: 22px; }
    .carousel-arrow.prev { left: 10px; }
    .carousel-arrow.next { right: 10px; }
    .carousel-dots { bottom: 10px; }
    .feature-media { min-height: 210px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; }
}