* { box-sizing: border-box; }
:root {
    --bg: #F4FBFF;
    --nav: #FFFFFF;
    --soft: #E8F7FF;
    --card: #FFFFFF;
    --cyan: #11AEEA;
    --blue: #1688D8;
    --deep: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --border: rgba(17,174,234,.18);
    --footer: #073A68;
    --footer-text: #EAF8FF;
    --shadow: 0 18px 48px rgba(21,90,157,.10);
    --radius-lg: 28px;
    --radius-md: 20px;
    --header-h: 78px;
}
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; overflow-x: hidden; background: var(--bg); color: var(--text); font-family: "PingFang SC", "Microsoft YaHei", Arial, sans-serif; line-height: 1.75; }
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; }
.site-container { width: min(100% - 32px, 1360px); margin-inline: auto; }
.section-pad { padding: clamp(62px, 8vw, 108px) 0; }
.alt-section { background: var(--soft); }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 9999; background: var(--deep); color: #fff; padding: 10px 16px; border-radius: 10px; }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 1000; height: var(--header-h); background: rgba(255,255,255,.96); 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, 2vw, 28px); }
.brand-logo, .drawer-logo, .footer-logo { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand-logo img { width: clamp(96px, 8vw, 132px); max-height: 48px; object-fit: contain; }
.desktop-nav { flex: 1; min-width: 0; display: flex; align-items: center; justify-content: center; gap: clamp(8px, 1vw, 16px); overflow: hidden; }
.desktop-nav a { position: relative; white-space: nowrap; font-size: clamp(12px, .95vw, 15px); color: var(--text); font-weight: 600; padding: 10px 0; }
.desktop-nav a::after { content: ""; position: absolute; left: 50%; right: 50%; bottom: 3px; height: 2px; background: var(--cyan); border-radius: 999px; transition: .25s ease; }
.desktop-nav a:hover, .desktop-nav a.is-active { color: var(--blue); }
.desktop-nav a:hover::after, .desktop-nav a.is-active::after { left: 0; right: 0; }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 22px; border: 0; border-radius: 999px; color: #fff; font-weight: 700; white-space: nowrap; background: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%); box-shadow: 0 10px 24px rgba(22,136,216,.22); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 28px rgba(22,136,216,.28); }
.text-btn, .plain-link { color: var(--blue); font-weight: 700; }
.text-btn:hover, .plain-link:hover { color: var(--cyan); }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 1px solid var(--border); border-radius: 14px; background: #fff; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--deep); border-radius: 999px; }
.drawer-backdrop { position: fixed; inset: 0; z-index: 1100; background: rgba(7,58,104,.38); }
.mobile-drawer { position: fixed; top: 0; right: 0; z-index: 1200; width: min(88vw, 380px); height: 100dvh; padding: 20px; background: #fff; box-shadow: -24px 0 60px rgba(7,58,104,.18); transform: translateX(105%); transition: transform .28s ease; overflow-y: auto; }
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.drawer-logo img { width: 112px; max-height: 44px; object-fit: contain; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: var(--soft); color: var(--deep); font-size: 28px; line-height: 1; }
.mobile-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 18px 0; }
.mobile-nav a { padding: 12px 14px; border-radius: 12px; background: var(--bg); color: var(--text); font-weight: 600; }
.mobile-nav a:hover { background: var(--soft); color: var(--blue); }
.drawer-register { width: 100%; }
.carousel-section { padding: 24px 0 0; }
.carousel { position: relative; overflow: hidden; border-radius: clamp(18px, 2.5vw, 30px); background: var(--soft); box-shadow: var(--shadow); aspect-ratio: 16 / 5.2; min-height: 250px; }
.carousel-track, .carousel-slide { position: absolute; inset: 0; }
.carousel-slide { opacity: 0; pointer-events: none; transition: opacity .55s ease; }
.carousel-slide.is-active { opacity: 1; pointer-events: auto; }
.carousel-slide img { width: 100%; height: 100%; object-fit: contain; background: var(--soft); }
.carousel-arrow { position: absolute; top: 50%; z-index: 4; width: clamp(40px, 4vw, 54px); height: clamp(40px, 4vw, 54px); border: 1px solid rgba(255,255,255,.68); border-radius: 50%; transform: translateY(-50%); background: rgba(7,58,104,.42); color: #fff; font-size: 28px; backdrop-filter: blur(8px); }
.carousel-arrow:hover { background: rgba(7,58,104,.62); }
.carousel-arrow.prev { left: clamp(12px, 2vw, 28px); }
.carousel-arrow.next { right: clamp(12px, 2vw, 28px); }
.carousel-dots { position: absolute; left: 50%; bottom: clamp(12px, 2vw, 22px); z-index: 4; display: flex; gap: 9px; transform: translateX(-50%); }
.carousel-dot { width: 10px; height: 10px; padding: 0; border: 1px solid rgba(255,255,255,.9); border-radius: 50%; background: rgba(255,255,255,.5); }
.carousel-dot.is-active { width: 28px; border-radius: 999px; background: #fff; }
.page-hero { padding-top: clamp(52px, 7vw, 92px); }
.page-hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); align-items: center; gap: clamp(34px, 6vw, 78px); }
.page-hero-grid.no-image { grid-template-columns: minmax(0, 820px); justify-content: center; text-align: center; }
.page-hero-copy h1 { margin: 12px 0 20px; color: var(--deep); font-size: clamp(34px, 5vw, 66px); line-height: 1.12; letter-spacing: -.03em; }
.lead { margin: 0; color: var(--muted); font-size: clamp(17px, 1.6vw, 21px); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--cyan); font-weight: 800; letter-spacing: .08em; }
.eyebrow::before { content: ""; width: 22px; height: 3px; border-radius: 999px; background: linear-gradient(90deg, var(--cyan), var(--blue)); }
.hero-actions { display: flex; align-items: center; gap: 20px; margin-top: 30px; }
.page-hero-grid.no-image .hero-actions { justify-content: center; }
.page-hero-media, .split-media { margin: 0; overflow: hidden; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.page-hero-media img, .split-media img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: #fff; }
.section-heading { max-width: 780px; margin-bottom: 36px; }
.section-heading.center { margin-inline: auto; text-align: center; }
.section-heading h2, .split-copy h2, .compliance-box h2 { margin: 10px 0 14px; color: var(--deep); font-size: clamp(28px, 3.7vw, 48px); line-height: 1.2; }
.section-heading p, .split-copy p, .compliance-copy p { color: var(--muted); }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card-grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card-grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.info-card { position: relative; min-width: 0; padding: clamp(22px, 3vw, 32px); border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--card); box-shadow: 0 12px 34px rgba(21,90,157,.07); }
.info-card h3 { margin: 10px 0 10px; color: var(--deep); font-size: 21px; }
.info-card p { margin: 0 0 16px; color: var(--muted); }
.card-tag { display: inline-flex; padding: 5px 10px; border-radius: 999px; background: var(--soft); color: var(--blue); font-size: 13px; font-weight: 800; }
.split-layout { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: center; gap: clamp(34px, 6vw, 78px); }
.split-layout.reverse .split-copy { order: 2; }
.split-layout.reverse .split-media { order: 1; }
.check-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; }
.check-list li { position: relative; padding-left: 30px; color: var(--text); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 1px; width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; background: var(--soft); color: var(--blue); font-size: 12px; font-weight: 900; }
.steps-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.steps-list li { display: grid; grid-template-columns: 48px 1fr; gap: 18px; align-items: start; padding: 22px; border: 1px solid var(--border); border-radius: var(--radius-md); background: #fff; }
.steps-list li > span { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 16px; background: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%); color: #fff; font-weight: 800; }
.steps-list h3 { margin: 0 0 6px; color: var(--deep); }
.steps-list 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: #fff; box-shadow: 0 12px 34px rgba(21,90,157,.06); }
.review-card p { margin: 0 0 18px; color: var(--text); }
.review-card footer { color: var(--blue); font-weight: 800; }
.faq-list { display: grid; gap: 14px; }
.faq-item { border: 1px solid var(--border); border-radius: 18px; background: #fff; overflow: hidden; }
.faq-item summary { cursor: pointer; padding: 20px 24px; color: var(--deep); font-weight: 800; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { margin: 0; padding: 0 24px 22px; color: var(--muted); }
.compliance-section { padding-top: 24px; }
.compliance-box { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: start; padding: clamp(28px, 5vw, 52px); border-radius: var(--radius-lg); color: #fff; background: linear-gradient(135deg, #0B5A98 0%, #073A68 100%); box-shadow: var(--shadow); }
.compliance-box h2, .compliance-box .eyebrow { color: #fff; }
.compliance-box .eyebrow::before { background: #fff; }
.compliance-copy p { color: #DDF4FF; }
.notice-bar { padding: 22px 24px; border: 1px solid var(--border); border-radius: 18px; background: var(--soft); color: var(--deep); }
.site-footer { margin-top: 72px; padding: 68px 0 24px; background: var(--footer); color: var(--footer-text); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 42px; }
.footer-logo img { width: 124px; max-height: 46px; object-fit: contain; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 480px; color: #CDEBFA; }
.site-footer h2 { margin: 0 0 14px; color: #fff; font-size: 18px; }
.site-footer a { display: block; margin: 8px 0; color: #D5F0FC; }
.site-footer a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 44px; padding-top: 22px; border-top: 1px solid rgba(234,248,255,.18); color: #B8DCEE; font-size: 14px; }
.footer-bottom p { margin: 0; }
.form-card { max-width: 820px; padding: clamp(24px, 4vw, 40px); border: 1px solid var(--border); border-radius: var(--radius-lg); background: #fff; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: grid; gap: 8px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { color: var(--deep); font-weight: 700; }
.form-field input, .form-field textarea, .form-field select { width: 100%; border: 1px solid var(--border); border-radius: 14px; padding: 13px 15px; background: var(--bg); color: var(--text); outline: none; }
.form-field input:focus, .form-field textarea:focus, .form-field select:focus { border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(17,174,234,.10); }
.form-field textarea { min-height: 150px; resize: vertical; }
@media (max-width: 1180px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: block; }
    .header-inner { gap: 14px; }
    .header-actions { margin-left: auto; }
}
@media (max-width: 920px) {
    .page-hero-grid, .split-layout, .compliance-box { grid-template-columns: 1fr; }
    .split-layout.reverse .split-copy, .split-layout.reverse .split-media { order: initial; }
    .card-grid, .card-grid.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .review-grid { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
    .carousel { aspect-ratio: 16 / 7; }
}
@media (max-width: 640px) {
    :root { --header-h: 68px; }
    .site-container, .header-inner { width: min(100% - 24px, 1360px); }
    .brand-logo img { width: 96px; }
    .header-register { min-height: 40px; padding: 0 16px; }
    .menu-toggle { width: 40px; height: 40px; }
    .carousel-section { padding-top: 14px; }
    .carousel { min-height: 200px; aspect-ratio: 4 / 2.2; border-radius: 18px; }
    .carousel-arrow { width: 40px; height: 40px; font-size: 22px; }
    .page-hero-copy h1 { font-size: clamp(32px, 11vw, 48px); }
    .hero-actions { align-items: stretch; flex-direction: column; gap: 12px; }
    .hero-actions .main-btn, .hero-actions .text-btn { width: 100%; text-align: center; }
    .card-grid, .card-grid.cols-4, .card-grid.cols-2, .review-grid { grid-template-columns: 1fr; }
    .mobile-nav { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .form-field.full { grid-column: auto; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-bottom { flex-direction: column; }
}