:root {
    --bg: #F4FBFF;
    --surface-soft: #E8F7FF;
    --surface: #FFFFFF;
    --primary: #11AEEA;
    --primary-strong: #1688D8;
    --heading: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --border: rgba(17, 174, 234, 0.18);
    --footer: #073A68;
    --footer-text: #EAF8FF;
    --gradient: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
    --shadow: 0 18px 50px rgba(21, 90, 157, 0.12);
    --shadow-soft: 0 10px 30px rgba(21, 90, 157, 0.08);
    --radius-xl: 30px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --header-height: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 320px;
    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: 1.75;
    padding-top: var(--header-height);
}
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; }
h1, h2, h3, p, figure, blockquote { margin-top: 0; }
h1, h2, h3 { color: var(--heading); line-height: 1.24; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.15rem, 5vw, 4.6rem); margin-bottom: 22px; }
h2 { font-size: clamp(1.7rem, 3.2vw, 3rem); margin-bottom: 18px; }
h3 { font-size: clamp(1.08rem, 1.7vw, 1.35rem); margin-bottom: 10px; }
p { color: var(--muted); }
.container { width: min(calc(100% - 32px), 1360px); margin-inline: auto; }
.section-space { padding: clamp(58px, 8vw, 108px) 0; }
.section-space--compact { padding: clamp(36px, 5vw, 64px) 0; }
.soft-section { background: linear-gradient(180deg, rgba(232,247,255,.82), rgba(244,251,255,.35)); }
.skip-link { position: fixed; left: 16px; top: -100px; z-index: 1000; padding: 10px 16px; background: var(--footer); color: white; border-radius: 8px; }
.skip-link:focus { top: 10px; }

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 200;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(16px);
    transition: box-shadow .25s ease, background .25s ease;
}
.site-header.is-scrolled { box-shadow: 0 10px 30px rgba(21,90,157,.11); background: rgba(255,255,255,.98); }
.header-shell {
    width: min(calc(100% - 32px), 1360px);
    height: 100%;
    margin-inline: auto;
    display: flex;
    align-items: center;
    gap: clamp(14px, 2vw, 32px);
    min-width: 0;
}
.brand-logo, .drawer-logo, .footer-logo { display: inline-flex; align-items: center; }
.brand-logo { flex: 0 0 auto; width: clamp(92px, 9vw, 126px); }
.brand-logo img, .drawer-logo img, .footer-logo img { width: 100%; height: auto; object-fit: contain; }
.desktop-nav {
    min-width: 0;
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: clamp(8px, 1.08vw, 20px);
    white-space: nowrap;
}
.desktop-nav a {
    position: relative;
    flex: 0 0 auto;
    color: #466176;
    font-size: clamp(.76rem, .83vw, .94rem);
    font-weight: 700;
    padding: 10px 0;
    transition: color .2s ease;
}
.desktop-nav a::after {
    content: "";
    position: absolute;
    left: 50%; right: 50%; bottom: 3px;
    height: 2px;
    background: var(--gradient);
    border-radius: 999px;
    transition: left .2s ease, right .2s ease;
}
.desktop-nav a:hover, .desktop-nav a.is-active { color: var(--primary-strong); }
.desktop-nav a:hover::after, .desktop-nav a.is-active::after { left: 0; right: 0; }
.header-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
.main-btn, .secondary-btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-height: 44px;
    padding: 10px 24px;
    border: 0;
    border-radius: 999px;
    font-weight: 800;
    white-space: nowrap;
    transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn { color: #fff; background: var(--gradient); box-shadow: 0 10px 24px rgba(22,136,216,.24); }
.secondary-btn { color: var(--primary-strong); background: #fff; border: 1px solid var(--border); }
.main-btn:hover, .secondary-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(22,136,216,.22); }
.menu-toggle { display: none; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border); background: #fff; padding: 10px; }
.menu-toggle span { display: block; width: 20px; height: 2px; margin: 4px auto; border-radius: 99px; background: var(--heading); }

.drawer-overlay { position: fixed; inset: 0; z-index: 299; background: rgba(7,58,104,.42); backdrop-filter: blur(3px); }
.mobile-drawer {
    position: fixed;
    z-index: 300;
    inset: 0 0 0 auto;
    width: min(88vw, 380px);
    background: #fff;
    padding: 22px;
    transform: translateX(105%);
    transition: transform .3s ease;
    box-shadow: -20px 0 50px rgba(7,58,104,.16);
    overflow-y: auto;
}
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.drawer-logo { width: 112px; }
.drawer-close { width: 42px; height: 42px; border: 0; border-radius: 50%; background: var(--surface-soft); color: var(--heading); font-size: 28px; line-height: 1; }
.drawer-nav { display: grid; gap: 5px; padding: 18px 0; }
.drawer-nav a { padding: 11px 14px; border-radius: 12px; color: var(--text); font-weight: 700; }
.drawer-nav a:hover, .drawer-nav a.is-active { background: var(--surface-soft); color: var(--primary-strong); }
.drawer-register { width: 100%; }

.carousel-section { padding: clamp(18px, 3vw, 34px) 0 0; }
.carousel { position: relative; overflow: hidden; border-radius: var(--radius-xl); background: var(--surface-soft); box-shadow: var(--shadow); }
.carousel-track { display: flex; transition: transform .55s cubic-bezier(.2,.7,.2,1); }
.carousel-slide { min-width: 100%; height: clamp(220px, 43vw, 590px); display: grid; place-items: center; background: #eaf8ff; }
.carousel-slide img { width: 100%; height: 100%; object-fit: contain; }
.carousel-arrow {
    position: absolute;
    top: 50%;
    width: 46px; height: 46px;
    transform: translateY(-50%);
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,.8);
    background: rgba(7,58,104,.55);
    color: #fff;
    font-size: 26px;
    display: grid;
    place-items: center;
    z-index: 2;
    transition: background .2s ease, transform .2s ease;
}
.carousel-arrow:hover { background: rgba(7,58,104,.78); transform: translateY(-50%) scale(1.04); }
.carousel-arrow--prev { left: 18px; }
.carousel-arrow--next { right: 18px; }
.carousel-dots { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); display: flex; gap: 8px; z-index: 2; }
.carousel-dot { width: 10px; height: 10px; padding: 0; border: 0; border-radius: 50%; background: rgba(255,255,255,.66); box-shadow: 0 0 0 1px rgba(7,58,104,.18); }
.carousel-dot.is-active { width: 28px; border-radius: 999px; background: var(--primary); }

.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--primary-strong); font-weight: 900; font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 14px; }
.eyebrow::before { content: ""; width: 24px; height: 2px; border-radius: 99px; background: var(--gradient); }
.section-heading { max-width: 820px; margin-bottom: clamp(26px, 4vw, 46px); }
.section-heading p { max-width: 760px; font-size: 1.02rem; }
.page-hero { background: radial-gradient(circle at 85% 15%, rgba(53,215,255,.16), transparent 34%), linear-gradient(180deg, #f7fdff, #eef9ff); }
.page-hero__grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(320px, .95fr); gap: clamp(30px, 6vw, 82px); align-items: center; }
.page-hero__grid--single { grid-template-columns: minmax(0, 900px); }
.page-hero__content p { max-width: 760px; font-size: clamp(1rem, 1.6vw, 1.16rem); }
.page-hero__media { margin: 0; min-height: 320px; border-radius: var(--radius-xl); background: #fff; box-shadow: var(--shadow); overflow: hidden; display: grid; place-items: center; }
.page-hero__media img { width: 100%; height: 100%; max-height: 520px; object-fit: contain; }
.hero-actions, .inline-links { display: flex; flex-wrap: wrap; gap: 14px 22px; margin-top: 26px; }

.brand-intro { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); align-items: center; gap: clamp(28px, 6vw, 80px); }
.brand-intro__copy p { font-size: 1.03rem; }
.brand-intro__stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.stat-card { min-height: 160px; padding: 28px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow-soft); }
.stat-card strong { display: block; color: var(--primary-strong); font-size: clamp(1.35rem, 2.6vw, 2.2rem); margin-bottom: 8px; }
.stat-card span { color: var(--muted); }

.cards-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.cards-grid--four { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.quick-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.info-card { position: relative; min-width: 0; padding: clamp(22px, 2.4vw, 30px); border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow-soft); overflow: hidden; transition: transform .24s ease, box-shadow .24s ease, border-color .24s ease; }
.info-card::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 3px; background: var(--gradient); opacity: .7; }
.info-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: rgba(17,174,234,.35); }
.info-card p { margin-bottom: 18px; }
.card-tag { display: inline-flex; padding: 5px 10px; margin-bottom: 14px; border-radius: 999px; background: var(--surface-soft); color: var(--primary-strong); font-size: .78rem; font-weight: 800; }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--primary-strong); font-weight: 800; }
.text-link span { transition: transform .2s ease; }
.text-link:hover span { transform: translateX(4px); }

.media-feature { display: grid; grid-template-columns: minmax(300px, .95fr) minmax(0, 1.05fr); gap: clamp(30px, 6vw, 82px); align-items: center; }
.media-feature--reverse .media-feature__visual { order: 2; }
.media-feature__visual { margin: 0; min-height: 340px; border-radius: var(--radius-xl); background: #fff; box-shadow: var(--shadow); overflow: hidden; display: grid; place-items: center; }
.media-feature__visual img { width: 100%; height: 100%; max-height: 560px; object-fit: contain; }
.media-feature__content p { margin-bottom: 14px; }
.lead-text { font-size: 1.08rem; color: #3f5d72; }

.split-panel { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.content-panel { padding: clamp(28px, 4vw, 48px); border-radius: var(--radius-xl); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow-soft); }
.content-panel ul { margin: 18px 0 0; padding-left: 20px; color: var(--muted); }
.content-panel li + li { margin-top: 10px; }

.steps-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
.step-item { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 18px; align-items: start; padding: 24px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow-soft); }
.step-number { width: 54px; height: 54px; display: grid; place-items: center; border-radius: 16px; color: #fff; background: var(--gradient); font-weight: 900; }
.step-item p { margin-bottom: 0; }

.reviews-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.review-card { margin: 0; padding: 28px; border-radius: var(--radius-lg); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow-soft); }
.review-card blockquote { color: var(--text); font-size: 1.01rem; margin-bottom: 24px; }
.review-card figcaption { display: flex; justify-content: space-between; gap: 16px; align-items: center; border-top: 1px solid var(--border); padding-top: 18px; }
.review-card strong { color: var(--heading); }
.review-card span { color: var(--muted); font-size: .9rem; }

.notice-list { display: grid; gap: 14px; }
.notice-item { display: grid; grid-template-columns: minmax(110px, .25fr) minmax(0, 1fr); gap: 18px; padding: 20px 24px; border-radius: var(--radius-md); background: #fff; border: 1px solid var(--border); }
.notice-item time { color: var(--primary-strong); font-weight: 800; }
.notice-item h3 { margin-bottom: 6px; }
.notice-item p { margin-bottom: 0; }

.faq-list { display: grid; gap: 14px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-md); background: #fff; box-shadow: var(--shadow-soft); overflow: hidden; }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 20px 24px; border: 0; background: transparent; color: var(--heading); font-weight: 800; text-align: left; }
.faq-question span { font-size: 24px; transition: transform .2s ease; }
.faq-item.is-open .faq-question span { transform: rotate(45deg); }
.faq-answer { display: none; padding: 0 24px 22px; }
.faq-item.is-open .faq-answer { display: block; }
.faq-answer p { margin-bottom: 0; }

.compliance-panel { display: grid; grid-template-columns: 82px minmax(0, 1fr); gap: 22px; align-items: center; padding: clamp(26px, 4vw, 42px); border-radius: var(--radius-xl); background: linear-gradient(135deg, #0c67a8, #073a68); box-shadow: var(--shadow); }
.compliance-panel h2, .compliance-panel p { color: #fff; }
.compliance-panel h2 { font-size: clamp(1.35rem, 2.4vw, 2.2rem); margin-bottom: 8px; }
.compliance-panel p { margin-bottom: 0; opacity: .88; }
.compliance-icon { width: 72px; height: 72px; display: grid; place-items: center; border-radius: 50%; border: 2px solid rgba(255,255,255,.65); color: #fff; font-weight: 900; font-size: 1.35rem; }

.cta-panel { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: clamp(30px, 5vw, 58px); border-radius: var(--radius-xl); background: radial-gradient(circle at 95% 10%, rgba(53,215,255,.28), transparent 35%), #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.cta-panel p { max-width: 760px; margin-bottom: 0; }

.site-footer { background: var(--footer); color: var(--footer-text); padding-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, minmax(150px, .65fr)); gap: 38px; padding-bottom: 42px; }
.footer-logo { width: 122px; padding: 10px 14px; border-radius: 14px; background: #fff; margin-bottom: 18px; }
.footer-brand p { color: rgba(234,248,255,.75); max-width: 460px; }
.footer-column { display: flex; flex-direction: column; gap: 10px; }
.footer-column h2 { color: #fff; font-size: 1rem; margin-bottom: 8px; }
.footer-column a { color: rgba(234,248,255,.75); }
.footer-column a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 28px; padding: 24px 0 30px; border-top: 1px solid rgba(234,248,255,.14); }
.footer-bottom p { color: rgba(234,248,255,.65); font-size: .88rem; margin: 0; }
.footer-bottom p:first-child { max-width: 850px; }

@media (max-width: 1179px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: inline-block; }
    .header-shell { justify-content: space-between; }
}
@media (max-width: 980px) {
    .quick-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .cards-grid--four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .cards-grid, .reviews-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .page-hero__grid, .brand-intro, .media-feature { grid-template-columns: 1fr; }
    .media-feature--reverse .media-feature__visual { order: 0; }
    .page-hero__media, .media-feature__visual { min-height: 280px; }
    .footer-grid { grid-template-columns: 1.4fr repeat(2, 1fr); }
    .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 680px) {
    :root { --header-height: 68px; --radius-xl: 22px; --radius-lg: 18px; }
    .container, .header-shell { width: min(calc(100% - 24px), 1360px); }
    .brand-logo { width: 92px; }
    .header-actions .main-btn { min-height: 40px; padding: 8px 17px; }
    .menu-toggle { width: 40px; height: 40px; }
    .carousel-section { padding-top: 12px; }
    .carousel-slide { height: clamp(190px, 55vw, 310px); }
    .carousel-arrow { width: 38px; height: 38px; font-size: 21px; }
    .carousel-arrow--prev { left: 10px; }
    .carousel-arrow--next { right: 10px; }
    .carousel-dots { bottom: 10px; }
    .cards-grid, .cards-grid--four, .quick-grid, .reviews-grid, .split-panel, .brand-intro__stats { grid-template-columns: 1fr; }
    .page-hero__media, .media-feature__visual { min-height: 230px; }
    .step-item { grid-template-columns: 50px minmax(0, 1fr); padding: 20px; gap: 14px; }
    .step-number { width: 46px; height: 46px; border-radius: 13px; }
    .notice-item { grid-template-columns: 1fr; }
    .review-card figcaption { align-items: flex-start; flex-direction: column; gap: 4px; }
    .compliance-panel { grid-template-columns: 1fr; }
    .compliance-icon { width: 62px; height: 62px; }
    .cta-panel { align-items: flex-start; flex-direction: column; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-brand { grid-column: 1 / -1; }
    .footer-bottom { flex-direction: column; }
}
@media (max-width: 420px) {
    .header-actions { gap: 7px; }
    .header-actions .main-btn { padding-inline: 14px; }
    .info-card, .review-card, .content-panel { padding: 22px; }
    .footer-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}