:root {
    --page-bg: #EAF2FB;
    --surface: #FFFFFF;
    --surface-soft: #F4F8FF;
    --surface-alt: #EDF5FF;
    --surface-deep: #E1ECF8;
    --blue: #2FA8F7;
    --blue-light: #45C7FF;
    --blue-deep: #137CD8;
    --title: #137CD8;
    --text: #24364F;
    --muted: #5D718A;
    --footer: #102B46;
    --footer-text: #EAF6FF;
    --shadow: 0 18px 50px rgba(28, 91, 145, .12);
    --shadow-soft: 0 10px 30px rgba(30, 99, 158, .09);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --header-height: 74px;
    --channel-height: 50px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 320px;
    background: var(--page-bg);
    color: var(--text);
    font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
.container { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link {
    position: fixed; left: 16px; top: -80px; z-index: 9999;
    padding: 10px 16px; background: #fff; color: var(--blue-deep); border-radius: 10px;
}
.skip-link:focus { top: 12px; }

.site-header {
    position: fixed; inset: 0 0 auto; z-index: 1000;
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(47, 168, 247, .1);
}
.header-main { height: var(--header-height); display: flex; align-items: center; gap: 28px; }
.brand-logo { flex: 0 0 auto; display: inline-flex; align-items: center; }
.brand-logo img { width: 144px; height: 46px; object-fit: contain; }
.core-nav { flex: 1; display: flex; align-items: stretch; justify-content: center; gap: 4px; min-width: 0; height: 100%; }
.nav-link {
    position: relative; display: inline-flex; align-items: center; white-space: nowrap;
    padding: 0 17px; color: var(--muted); font-size: 15px; font-weight: 700; border-radius: 14px;
    transition: color .2s ease, background .2s ease;
}
.nav-link:hover { color: var(--blue-deep); background: var(--surface-soft); }
.nav-link::after {
    content: ""; position: absolute; left: 50%; bottom: 8px; width: 0; height: 3px;
    border-radius: 999px; background: linear-gradient(90deg, var(--blue-light), var(--blue-deep));
    transform: translateX(-50%); transition: width .2s ease;
}
.nav-link.is-active { color: var(--blue-deep); }
.nav-link.is-active::after { width: 26px; }
.register-btn {
    display: inline-flex; align-items: center; justify-content: center; min-height: 42px;
    padding: 0 24px; background: linear-gradient(135deg, #45C7FF 0%, #2FA8F7 48%, #137CD8 100%);
    color: #fff; border-radius: 999px; font-weight: 800; box-shadow: 0 9px 20px rgba(19, 124, 216, .25);
    transition: transform .2s ease, box-shadow .2s ease;
}
.register-btn:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(19, 124, 216, .32); }
.header-register { flex: 0 0 auto; }
.menu-toggle { display: none; border: 0; background: transparent; padding: 8px; }
.menu-toggle span { display: block; width: 23px; height: 2px; margin: 5px 0; background: var(--blue-deep); border-radius: 4px; }
.channel-bar { height: var(--channel-height); background: rgba(244, 248, 255, .94); border-top: 1px solid rgba(47, 168, 247, .08); }
.channel-scroll {
    height: 100%; display: flex; align-items: center; gap: 8px; overflow-x: auto; overscroll-behavior-inline: contain;
    scrollbar-width: none; padding-block: 7px;
}
.channel-scroll::-webkit-scrollbar { display: none; }
.channel-link {
    flex: 0 0 auto; padding: 5px 12px; color: var(--muted); border-radius: 999px;
    font-size: 13px; line-height: 1.6; white-space: nowrap; transition: .2s ease;
}
.channel-link:hover, .channel-link.is-active { color: #fff; background: var(--blue); }
.site-main { padding-top: calc(var(--header-height) + var(--channel-height)); }

.mobile-drawer {
    position: fixed; z-index: 1200; inset: 0 auto 0 0; width: min(84vw, 350px); background: #fff;
    transform: translateX(-104%); transition: transform .25s ease; box-shadow: 24px 0 60px rgba(11, 49, 82, .22);
    overflow-y: auto; overscroll-behavior: contain;
}
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-overlay { position: fixed; z-index: 1150; inset: 0; background: rgba(11, 38, 66, .46); opacity: 0; transition: opacity .22s ease; }
.drawer-overlay.is-visible { opacity: 1; }
.drawer-head { position: sticky; top: 0; display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; background: #fff; border-bottom: 1px solid var(--surface-deep); }
.drawer-logo img { width: 132px; height: 42px; object-fit: contain; }
.drawer-close { border: 0; background: var(--surface-soft); color: var(--blue-deep); width: 40px; height: 40px; border-radius: 50%; font-size: 25px; line-height: 1; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; padding: 16px 18px 28px; }
.drawer-link { padding: 11px 12px; background: var(--surface-soft); border: 1px solid rgba(47, 168, 247, .12); border-radius: 12px; color: var(--muted); font-size: 14px; text-align: center; }
.drawer-link.is-active { background: var(--blue); color: #fff; }

.service-float {
    position: fixed; right: 20px; top: 50%; z-index: 900; transform: translateY(-34%);
    width: 104px; padding: 10px; background: rgba(255, 255, 255, .96); border: 1px solid rgba(47, 168, 247, .16);
    border-radius: 18px; box-shadow: var(--shadow-soft); backdrop-filter: blur(10px);
}
.service-float a, .service-float button {
    display: flex; align-items: center; justify-content: center; width: 100%; min-height: 38px; margin: 4px 0;
    border: 0; background: transparent; color: var(--blue-deep); border-radius: 10px; font-size: 13px; font-weight: 700;
}
.service-float a:hover, .service-float button:hover { background: var(--surface-soft); }
.service-float .service-register { background: linear-gradient(135deg, var(--blue-light), var(--blue-deep)); color: #fff; }

.home-slider-wrap { padding: 28px 0 10px; }
.home-slider {
    position: relative; overflow: hidden; min-height: clamp(210px, 35vw, 470px); background: #fff;
    border-radius: var(--radius-xl); box-shadow: var(--shadow); isolation: isolate;
}
.slides { position: relative; min-height: inherit; }
.slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .45s ease; }
.slide.is-active { opacity: 1; visibility: visible; z-index: 1; }
.slide img { width: 100%; height: 100%; min-height: inherit; object-fit: contain; background: #fff; }
.slider-arrow {
    position: absolute; z-index: 3; top: 50%; width: 46px; height: 46px; border: 0; border-radius: 50%;
    background: rgba(255, 255, 255, .88); color: var(--blue-deep); font-size: 28px; line-height: 1;
    transform: translateY(-50%); box-shadow: 0 8px 22px rgba(19, 69, 112, .2); transition: .2s ease;
}
.slider-arrow:hover { background: #fff; transform: translateY(-50%) scale(1.04); }
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.slider-dots { position: absolute; z-index: 3; left: 50%; bottom: 17px; display: flex; gap: 8px; transform: translateX(-50%); }
.slider-dot { width: 9px; height: 9px; padding: 0; border: 0; border-radius: 50%; background: rgba(19, 124, 216, .26); transition: .2s ease; }
.slider-dot.is-active { width: 27px; border-radius: 999px; background: var(--blue-deep); }

.section { padding: 38px 0; }
.section-tight { padding: 24px 0; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin-bottom: 20px; }
.section-kicker { display: inline-block; margin-bottom: 6px; color: var(--blue); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
h1, h2, h3 { margin-top: 0; color: var(--title); line-height: 1.35; }
h1 { font-size: clamp(28px, 4vw, 46px); margin-bottom: 16px; }
h2 { font-size: clamp(22px, 3vw, 32px); margin-bottom: 12px; }
h3 { font-size: 19px; margin-bottom: 9px; }
p { margin: 0 0 14px; }
.section-heading p { max-width: 620px; margin: 0; color: var(--muted); }
.text-link { display: inline-flex; align-items: center; color: var(--blue-deep); font-weight: 800; }
.text-link::after { content: "→"; margin-left: 6px; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(3px); }

.card, .content-panel {
    background: var(--surface); border: 1px solid rgba(47, 168, 247, .1); border-radius: var(--radius-lg); box-shadow: var(--shadow-soft);
}
.intro-split { display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 34px; padding: 30px; }
.media-frame { overflow: hidden; border-radius: 18px; background: var(--surface-soft); min-height: 260px; display: flex; align-items: center; justify-content: center; }
.media-frame img { width: 100%; height: 100%; max-height: 410px; object-fit: contain; }
.hero-media { min-height: 330px; }
.intro-copy p { color: var(--muted); }
.pill-row { display: flex; flex-wrap: wrap; gap: 9px; margin: 18px 0; }
.pill { padding: 6px 12px; border-radius: 999px; background: var(--surface-alt); color: var(--blue-deep); font-size: 13px; font-weight: 700; }

.quick-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.quick-card { padding: 20px; background: #fff; border-radius: 18px; border: 1px solid rgba(47,168,247,.12); transition: transform .2s ease, box-shadow .2s ease; }
.quick-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-soft); }
.quick-card p { min-height: 52px; color: var(--muted); font-size: 14px; }
.info-strip { padding: 20px 24px; background: linear-gradient(100deg, #E1ECF8, #F4F8FF 55%, #FFFFFF); border-left: 5px solid var(--blue); border-radius: 16px; color: var(--text); }
.dashboard-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.dashboard-card { padding: 19px; background: #fff; border-radius: 16px; border-top: 4px solid var(--blue); box-shadow: 0 9px 26px rgba(33, 97, 151, .07); }
.dashboard-card p { margin: 0; color: var(--muted); font-size: 14px; }

.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.feature-card { display: grid; grid-template-columns: 42% 1fr; min-height: 310px; overflow: hidden; }
.feature-card.reverse { grid-template-columns: 1fr 42%; }
.feature-card.reverse .feature-media { order: 2; }
.feature-media { background: var(--surface-soft); display: flex; align-items: center; justify-content: center; min-height: 100%; }
.feature-media img { width: 100%; height: 100%; object-fit: contain; }
.feature-content { padding: 25px; }
.feature-content p { color: var(--muted); }
.check-list { margin: 14px 0 18px; padding: 0; list-style: none; }
.check-list li { position: relative; padding-left: 20px; margin: 6px 0; color: var(--text); font-size: 14px; }
.check-list li::before { content: ""; position: absolute; left: 0; top: .68em; width: 8px; height: 8px; border-radius: 50%; background: var(--blue); transform: translateY(-50%); }

.triple-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.category-card { overflow: hidden; }
.category-media { height: 190px; background: var(--surface-soft); display: flex; align-items: center; justify-content: center; }
.category-media img { width: 100%; height: 100%; object-fit: contain; }
.category-body { padding: 20px; }
.category-body p { color: var(--muted); font-size: 14px; }

.list-panel { padding: 26px; }
.notice-list { display: grid; gap: 12px; }
.notice-item { display: grid; grid-template-columns: 104px 1fr; gap: 14px; align-items: start; padding: 14px 0; border-bottom: 1px solid var(--surface-deep); }
.notice-item:last-child { border-bottom: 0; }
.notice-label { display: inline-flex; justify-content: center; padding: 5px 10px; background: var(--surface-alt); color: var(--blue-deep); border-radius: 999px; font-size: 12px; font-weight: 800; }
.notice-item p { margin: 0; color: var(--muted); font-size: 14px; }

.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.review-card { position: relative; padding: 22px; background: #fff; border-radius: 18px; box-shadow: var(--shadow-soft); }
.review-card::before { content: "“"; position: absolute; right: 16px; top: 4px; color: rgba(47,168,247,.15); font-size: 62px; font-family: Georgia, serif; line-height: 1; }
.review-card strong { display: block; margin-top: 12px; color: var(--blue-deep); font-size: 13px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 18px 20px; background: #fff; border: 1px solid rgba(47,168,247,.12); border-radius: 16px; }
.faq-item h3 { font-size: 17px; }
.faq-item p { margin: 0; color: var(--muted); font-size: 14px; }

.page-hero { padding: 44px 0 22px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; color: var(--muted); font-size: 13px; }
.breadcrumb a { color: var(--blue-deep); }
.page-hero-card { display: grid; grid-template-columns: 1fr .8fr; gap: 30px; align-items: center; padding: 34px; }
.page-hero-copy p { max-width: 690px; color: var(--muted); }
.page-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.secondary-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 20px; border: 1px solid var(--blue); color: var(--blue-deep); border-radius: 999px; font-weight: 800; background: #fff; }
.page-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 24px; align-items: start; }
.article-card { padding: 30px; }
.article-card h2 { margin-top: 28px; }
.article-card h2:first-child { margin-top: 0; }
.article-card p { color: var(--muted); }
.article-card ul { padding-left: 20px; color: var(--muted); }
.article-card li { margin: 7px 0; }
.article-card .callout { margin: 22px 0; padding: 18px 20px; background: var(--surface-soft); border-radius: 14px; border-left: 4px solid var(--blue); color: var(--text); }
.side-stack { display: grid; gap: 16px; position: sticky; top: calc(var(--header-height) + var(--channel-height) + 20px); }
.side-card { padding: 20px; }
.side-card a { display: block; padding: 9px 0; color: var(--muted); border-bottom: 1px solid var(--surface-deep); }
.side-card a:last-child { border-bottom: 0; }
.side-card a:hover { color: var(--blue-deep); }
.visual-card { overflow: hidden; }
.visual-card img { width: 100%; height: 250px; object-fit: contain; background: var(--surface-soft); }
.visual-card .visual-caption { padding: 15px 18px; color: var(--muted); font-size: 13px; }
.content-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 22px 0; }
.mini-card { padding: 18px; background: var(--surface-soft); border-radius: 15px; }
.mini-card p { margin: 0; font-size: 14px; }
.steps { counter-reset: steps; display: grid; gap: 14px; margin: 20px 0; }
.step { position: relative; padding: 18px 18px 18px 62px; background: var(--surface-soft); border-radius: 15px; }
.step::before { counter-increment: steps; content: counter(steps); position: absolute; left: 18px; top: 18px; width: 30px; height: 30px; display: grid; place-items: center; background: var(--blue); color: #fff; border-radius: 50%; font-weight: 800; }
.step h3 { margin-bottom: 4px; font-size: 16px; }
.step p { margin: 0; font-size: 14px; }

.cta-band { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 25px 28px; background: linear-gradient(120deg, #D9EDFF, #FFFFFF); border-radius: 20px; border: 1px solid rgba(47,168,247,.16); }
.cta-band p { margin: 0; color: var(--muted); }

.site-footer { margin-top: 50px; background: var(--footer); color: var(--footer-text); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 1fr); gap: 38px; padding: 48px 0 30px; }
.footer-logo { display: inline-flex; padding: 8px 12px; background: #fff; border-radius: 12px; margin-bottom: 15px; }
.footer-logo img { width: 138px; height: 44px; object-fit: contain; }
.footer-brand p { max-width: 420px; color: rgba(234,246,255,.72); }
.site-footer h2 { color: #fff; font-size: 16px; margin-bottom: 12px; }
.site-footer section > a:not(.footer-logo) { display: block; padding: 5px 0; color: rgba(234,246,255,.75); font-size: 14px; }
.site-footer section > a:hover { color: #fff; }
.compliance-note { padding: 18px 0; border-top: 1px solid rgba(255,255,255,.1); }
.compliance-note p { margin: 0; color: rgba(234,246,255,.75); font-size: 13px; }
.footer-bottom { background: rgba(4, 23, 40, .32); }
.footer-bottom-inner { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: rgba(234,246,255,.68); font-size: 13px; }
.footer-bottom-inner a { margin-left: 18px; }
.mobile-bottom-nav { display: none; }

@media (max-width: 1260px) {
    .service-float { display: none; }
}
@media (max-width: 980px) {
    :root { --header-height: 68px; }
    .container { width: min(100% - 30px, 920px); }
    .core-nav { gap: 0; }
    .nav-link { padding-inline: 10px; font-size: 14px; }
    .brand-logo img { width: 126px; }
    .quick-grid, .triple-grid, .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .dashboard-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .feature-grid { grid-template-columns: 1fr; }
    .page-grid { grid-template-columns: 1fr; }
    .side-stack { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .footer-grid { grid-template-columns: 1.4fr repeat(2, 1fr); }
    .footer-grid section:last-child { grid-column: 2 / 4; }
}
@media (max-width: 760px) {
    :root { --channel-height: 0px; }
    body { padding-bottom: calc(68px + env(safe-area-inset-bottom)); }
    .container { width: min(100% - 24px, 720px); }
    .site-header { border-bottom-color: rgba(47,168,247,.14); }
    .header-main { justify-content: space-between; gap: 10px; }
    .menu-toggle { display: block; flex: 0 0 42px; }
    .brand-logo { position: absolute; left: 50%; transform: translateX(-50%); }
    .brand-logo img { width: 118px; height: 40px; }
    .core-nav, .channel-bar { display: none; }
    .header-register { min-height: 38px; padding: 0 17px; font-size: 14px; }
    .site-main { padding-top: var(--header-height); }
    .home-slider-wrap { padding-top: 14px; }
    .home-slider { border-radius: 18px; min-height: 210px; }
    .slider-arrow { width: 38px; height: 38px; font-size: 23px; }
    .slider-prev { left: 9px; }
    .slider-next { right: 9px; }
    .slider-dots { bottom: 10px; }
    .section { padding: 28px 0; }
    .section-heading { align-items: flex-start; flex-direction: column; }
    .intro-split, .page-hero-card { grid-template-columns: 1fr; padding: 22px; gap: 22px; }
    .hero-media, .media-frame { min-height: 220px; }
    .quick-grid, .dashboard-grid, .triple-grid, .review-grid, .content-cards { grid-template-columns: 1fr; }
    .quick-card p { min-height: auto; }
    .feature-card, .feature-card.reverse { grid-template-columns: 1fr; }
    .feature-card.reverse .feature-media { order: 0; }
    .feature-media { min-height: 220px; }
    .notice-item { grid-template-columns: 1fr; gap: 7px; }
    .side-stack { grid-template-columns: 1fr; }
    .cta-band { align-items: flex-start; flex-direction: column; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 22px; padding-top: 38px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-grid section:last-child { grid-column: auto; }
    .footer-bottom-inner { min-height: 70px; align-items: flex-start; justify-content: center; flex-direction: column; gap: 4px; padding: 12px 0; }
    .footer-bottom-inner a { margin-left: 0; margin-right: 16px; }
    .mobile-bottom-nav {
        position: fixed; z-index: 980; inset: auto 0 0; display: grid; grid-template-columns: repeat(4, 1fr);
        min-height: calc(62px + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom);
        background: rgba(255,255,255,.97); border-top: 1px solid rgba(47,168,247,.14); box-shadow: 0 -8px 24px rgba(24,72,113,.1);
    }
    .mobile-bottom-nav a { display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: 13px; font-weight: 700; }
    .mobile-bottom-nav a.is-active { color: var(--blue-deep); }
    .mobile-bottom-nav a.is-active span { padding: 5px 12px; background: var(--surface-alt); border-radius: 999px; }
}
@media (max-width: 420px) {
    .container { width: min(100% - 18px, 400px); }
    h1 { font-size: 27px; }
    h2 { font-size: 22px; }
    .page-hero { padding-top: 25px; }
    .article-card { padding: 22px 18px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand, .footer-grid section:last-child { grid-column: auto; }
}