:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --soft: #E8F7FF;
    --primary: #11AEEA;
    --primary-deep: #1688D8;
    --heading: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --border: rgba(17, 174, 234, 0.18);
    --gradient: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
    --footer: #073A68;
    --shadow: 0 18px 50px rgba(16, 108, 165, 0.12);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --header-h: 78px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; padding-top: var(--header-h); overflow-x: hidden; background: var(--bg); color: var(--text); font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.72; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.container { width: min(100% - 32px, 1240px); margin-inline: auto; }
.site-header { position: fixed; inset: 0 0 auto; height: var(--header-h); z-index: 1000; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--border); backdrop-filter: blur(14px); }
.header-inner { width: min(100% - 32px, 1360px); height: 100%; margin-inline: auto; display: flex; align-items: center; gap: clamp(14px, 1.8vw, 28px); }
.brand-logo { flex: 0 0 auto; width: clamp(118px, 10vw, 154px); }
.brand-logo img { width: 100%; max-height: 48px; object-fit: contain; }
.desktop-nav { flex: 1; min-width: 0; display: flex; justify-content: center; align-items: center; gap: clamp(8px, 1vw, 18px); }
.desktop-nav a { white-space: nowrap; font-size: clamp(13px, .93vw, 15px); color: var(--text); padding: 9px 2px; position: relative; }
.desktop-nav a::after { content: ""; position: absolute; left: 50%; right: 50%; bottom: 2px; height: 2px; border-radius: 2px; background: var(--gradient); transition: .25s; }
.desktop-nav a:hover, .desktop-nav a.active { color: var(--primary-deep); }
.desktop-nav a:hover::after, .desktop-nav a.active::after { left: 0; right: 0; }
.header-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
.main-btn { display: inline-flex; min-height: 44px; align-items: center; justify-content: center; padding: 0 22px; border: 0; border-radius: 999px; color: #fff; background: var(--gradient); box-shadow: 0 10px 24px rgba(22, 136, 216, .24); font-weight: 700; white-space: nowrap; transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(22,136,216,.3); }
.main-btn.small { min-height: 42px; padding-inline: 20px; }
.menu-toggle { display: none; width: 46px; height: 46px; padding: 11px; border: 1px solid var(--border); background: var(--surface); border-radius: 14px; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; border-radius: 2px; background: var(--heading); }
.mobile-drawer { position: fixed; z-index: 1200; top: 0; right: 0; width: min(88vw, 360px); height: 100dvh; overflow-y: auto; padding: 18px; background: #fff; transform: translateX(105%); transition: transform .28s ease; box-shadow: -20px 0 50px rgba(2, 55, 96, .18); }
.drawer-overlay { position: fixed; inset: 0; z-index: 1100; background: rgba(3, 43, 78, .42); opacity: 0; pointer-events: none; transition: opacity .25s; }
.drawer-open { overflow: hidden; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-open .drawer-overlay { opacity: 1; pointer-events: auto; }
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.drawer-logo { width: 132px; }
.drawer-logo img { max-height: 44px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 12px; background: var(--soft); color: var(--heading); font-size: 26px; }
.mobile-drawer nav { display: grid; gap: 6px; }
.mobile-drawer nav a { padding: 11px 14px; border-radius: 12px; color: var(--text); }
.mobile-drawer nav a:hover, .mobile-drawer nav a.active { color: var(--primary-deep); background: var(--soft); }
.drawer-register { width: 100%; margin-top: 18px; }
.carousel-wrap { padding: 28px 0 0; }
.carousel { position: relative; overflow: hidden; min-height: clamp(230px, 42vw, 560px); border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--soft); box-shadow: var(--shadow); }
.carousel-track, .carousel-slide { position: absolute; inset: 0; }
.carousel-slide { opacity: 0; pointer-events: none; transition: opacity .65s ease; }
.carousel-slide.active { opacity: 1; pointer-events: auto; }
.carousel-slide img { width: 100%; height: 100%; object-fit: contain; object-position: center; }
.carousel-control { position: absolute; z-index: 5; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border: 1px solid rgba(255,255,255,.65); border-radius: 50%; background: rgba(7, 58, 104, .54); color: #fff; font-size: 28px; line-height: 1; backdrop-filter: blur(8px); }
.carousel-control.prev { left: 18px; }
.carousel-control.next { right: 18px; }
.carousel-dots { position: absolute; z-index: 5; left: 50%; bottom: 16px; transform: translateX(-50%); display: flex; gap: 9px; }
.carousel-dot { width: 10px; height: 10px; padding: 0; border: 1px solid rgba(255,255,255,.9); border-radius: 50%; background: rgba(7,58,104,.42); }
.carousel-dot.active { width: 28px; border-radius: 99px; background: #fff; }
.section { padding: clamp(58px, 7vw, 96px) 0; }
.soft-section { background: var(--soft); border-block: 1px solid var(--border); }
.section-heading { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, .78fr); align-items: end; gap: 32px; margin-bottom: 30px; }
.section-heading h2, .split h2, .compliance-box h2 { margin: 8px 0 0; color: var(--heading); font-size: clamp(28px, 3.6vw, 48px); line-height: 1.2; letter-spacing: -.02em; }
.section-heading p { margin: 0; color: var(--muted); }
.eyebrow { display: inline-flex; color: var(--primary-deep); font-size: 13px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.intro-section { padding: clamp(56px, 7vw, 92px) 0; }
.intro-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); gap: clamp(28px, 6vw, 80px); align-items: center; }
.intro-copy h1 { margin: 12px 0 18px; color: var(--heading); font-size: clamp(38px, 5.4vw, 70px); line-height: 1.08; letter-spacing: -.035em; }
.intro-copy p { margin: 0 0 16px; color: var(--muted); font-size: 17px; }
.intro-actions, .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-top: 24px; }
.intro-panel { display: grid; gap: 14px; padding: clamp(24px, 4vw, 42px); border: 1px solid var(--border); border-radius: var(--radius-lg); background: linear-gradient(145deg, #fff, #eaf9ff); box-shadow: var(--shadow); }
.intro-panel article { padding: 18px; border-radius: var(--radius-sm); background: rgba(255,255,255,.84); }
.intro-panel h3 { margin: 0 0 6px; color: var(--heading); }
.intro-panel p { margin: 0; color: var(--muted); }
.quick-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.quick-card { min-width: 0; padding: 22px; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface); box-shadow: 0 12px 32px rgba(16,108,165,.07); }
.quick-card h3 { margin: 0 0 8px; color: var(--heading); font-size: 18px; }
.quick-card p { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
.text-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary-deep); font-weight: 700; }
.text-link::after { content: "→"; transition: transform .2s; }
.text-link:hover::after { transform: translateX(4px); }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.info-card { min-width: 0; padding: 26px; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface); box-shadow: 0 14px 36px rgba(16,108,165,.08); }
.info-card h3 { margin: 12px 0 10px; color: var(--heading); font-size: 22px; }
.info-card p { margin: 0 0 16px; color: var(--muted); }
.card-tag { display: inline-flex; padding: 6px 10px; border-radius: 999px; background: var(--soft); color: var(--primary-deep); font-size: 12px; font-weight: 800; }
.media-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.media-card { overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow); }
.media-card img { width: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: var(--soft); }
.media-card div { padding: 24px; }
.media-card h3 { margin: 0 0 10px; color: var(--heading); }
.media-card p { margin: 0 0 12px; color: var(--muted); }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, .92fr); gap: clamp(30px, 6vw, 76px); align-items: center; }
.split.reverse .split-copy { order: 2; }
.split.reverse .split-media, .split.reverse .notice-card { order: 1; }
.split-copy p { color: var(--muted); }
.split-media { overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--soft); box-shadow: var(--shadow); }
.split-media img { width: 100%; max-height: 470px; object-fit: contain; }
.notice-card { padding: 30px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: linear-gradient(145deg, #fff, #e8f7ff); box-shadow: var(--shadow); }
.notice-card h3 { margin-top: 0; color: var(--heading); }
.notice-card ul { margin: 0; padding-left: 20px; color: var(--muted); }
.steps { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; padding: 0; margin: 0; }
.steps li { display: flex; gap: 15px; padding: 24px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.86); }
.steps li > span { flex: 0 0 auto; display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--gradient); color: #fff; font-weight: 800; }
.steps h3 { margin: 3px 0 8px; color: var(--heading); }
.steps p { margin: 0; color: var(--muted); }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.review-card { margin: 0; padding: 26px; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface); box-shadow: 0 14px 36px rgba(16,108,165,.08); }
.review-card p { margin: 0 0 18px; color: var(--text); }
.review-card footer { color: var(--primary-deep); font-weight: 800; }
.compliance-section { padding-top: 30px; }
.compliance-box { display: grid; grid-template-columns: .88fr 1.12fr; gap: 42px; padding: clamp(28px, 5vw, 50px); border: 1px solid var(--border); border-radius: var(--radius-lg); background: linear-gradient(135deg, #fff, #e7f7ff); box-shadow: var(--shadow); }
.compliance-copy p { margin: 0 0 14px; color: var(--muted); }
.inner-hero { padding: clamp(40px, 6vw, 78px) 0; background: radial-gradient(circle at 85% 15%, rgba(53,215,255,.25), transparent 32%), linear-gradient(180deg, #f8fdff, #edf9ff); border-bottom: 1px solid var(--border); }
.inner-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, .88fr); align-items: center; gap: clamp(32px, 6vw, 76px); }
.inner-hero h1 { margin: 10px 0 18px; color: var(--heading); font-size: clamp(38px, 5vw, 66px); line-height: 1.1; }
.inner-hero p { margin: 0; color: var(--muted); font-size: 17px; }
.inner-hero-media { margin: 0; overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow); }
.inner-hero-media img { width: 100%; max-height: 460px; object-fit: contain; }
.hero-info-panel { display: grid; grid-template-columns: auto 1fr; gap: 10px 16px; padding: 30px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow); }
.hero-info-panel strong { color: var(--heading); }
.hero-info-panel span { color: var(--muted); }
.breadcrumb { width: min(100% - 32px, 1240px); margin: 22px auto -10px; display: flex; gap: 9px; color: var(--muted); font-size: 14px; }
.breadcrumb a { color: var(--primary-deep); }
.faq-list { display: grid; gap: 14px; }
.faq-item { overflow: hidden; border: 1px solid var(--border); border-radius: var(--radius-md); background: #fff; }
.faq-question { width: 100%; display: flex; justify-content: space-between; gap: 20px; padding: 20px 22px; border: 0; background: transparent; color: var(--heading); text-align: left; font-weight: 800; }
.faq-question::after { content: "+"; font-size: 22px; }
.faq-item.open .faq-question::after { content: "−"; }
.faq-answer { display: none; padding: 0 22px 22px; color: var(--muted); }
.faq-item.open .faq-answer { display: block; }
.contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.contact-card { padding: 26px; border: 1px solid var(--border); border-radius: var(--radius-md); background: #fff; }
.contact-card h3 { margin-top: 0; color: var(--heading); }
.contact-card p { margin-bottom: 0; color: var(--muted); }
.site-footer { margin-top: 60px; padding-top: 56px; background: var(--footer); color: #EAF8FF; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 40px; }
.footer-brand img { width: 150px; max-height: 50px; object-fit: contain; filter: brightness(0) invert(1); }
.footer-grid h2 { margin-top: 0; font-size: 17px; color: #fff; }
.footer-grid a { display: block; margin: 9px 0; color: #CDEFFF; }
.footer-grid p { color: #B9DDF1; }
.footer-note { font-size: 13px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 40px; padding: 22px 0; border-top: 1px solid rgba(255,255,255,.14); color: #B9DDF1; font-size: 13px; }
@media (max-width: 1180px) {
    .desktop-nav { display: none; }
    .header-inner { justify-content: space-between; }
    .menu-toggle { display: block; }
    .quick-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
    .section-heading, .intro-grid, .inner-hero-grid, .split, .compliance-box { grid-template-columns: 1fr; }
    .section-heading { align-items: start; }
    .inner-hero-media { max-width: 720px; }
    .quick-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .card-grid, .review-grid, .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .split.reverse .split-copy, .split.reverse .split-media, .split.reverse .notice-card { order: initial; }
}
@media (max-width: 620px) {
    :root { --header-h: 70px; }
    .container, .header-inner { width: min(100% - 24px, 1240px); }
    .brand-logo { width: 118px; }
    .header-actions .main-btn { min-height: 40px; padding: 0 16px; }
    .menu-toggle { width: 42px; height: 42px; }
    .carousel-wrap { padding-top: 16px; }
    .carousel { min-height: clamp(180px, 58vw, 340px); border-radius: 18px; }
    .carousel-control { width: 38px; height: 38px; font-size: 22px; }
    .carousel-control.prev { left: 10px; }
    .carousel-control.next { right: 10px; }
    .section { padding: 54px 0; }
    .section-heading { margin-bottom: 22px; }
    .quick-grid, .card-grid, .review-grid, .steps, .media-grid, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
    .intro-copy h1, .inner-hero h1 { font-size: 38px; }
    .intro-panel, .notice-card, .compliance-box { padding: 22px; }
    .hero-info-panel { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}