:root {
    --page: #EAF2FB;
    --surface: #FFFFFF;
    --soft: #F4F8FF;
    --soft-2: #EDF5FF;
    --soft-3: #E1ECF8;
    --blue: #2FA8F7;
    --cyan: #45C7FF;
    --deep: #137CD8;
    --title: #137CD8;
    --text: #24364F;
    --muted: #5D718A;
    --footer: #102B46;
    --footer-text: #EAF6FF;
    --border: rgba(47, 168, 247, .16);
    --shadow: 0 20px 55px rgba(39, 91, 138, .12);
    --shadow-sm: 0 10px 30px rgba(39, 91, 138, .09);
    --radius-xl: 30px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --header-h: 74px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 320px;
    color: var(--text);
    background:
        radial-gradient(circle at 10% -5%, rgba(69,199,255,.16), transparent 31%),
        linear-gradient(180deg, #F7FBFF 0, var(--page) 280px, var(--page) 100%);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
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; }
.shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.section-shell { width: min(1180px, calc(100% - 40px)); margin: 28px auto; }
.site-main { min-height: 60vh; padding-top: 132px; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 9999; background: #fff; color: var(--deep); padding: 10px 16px; border-radius: 10px; box-shadow: var(--shadow-sm); }
.skip-link:focus { top: 12px; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 1000; background: rgba(255,255,255,.9); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border-bottom: 1px solid rgba(47,168,247,.12); box-shadow: 0 8px 28px rgba(34, 83, 126, .06); }
.topbar { height: var(--header-h); display: grid; grid-template-columns: 190px 1fr auto; align-items: center; gap: 24px; }
.brand-logo { display: inline-flex; align-items: center; width: 168px; height: 48px; }
.brand-logo img { width: 100%; max-height: 46px; object-fit: contain; object-position: left center; }
.desktop-nav { display: flex; justify-content: center; align-items: stretch; height: 100%; gap: 2px; white-space: nowrap; }
.desktop-nav a { position: relative; display: inline-flex; align-items: center; padding: 0 17px; color: #3C5068; font-size: 15px; font-weight: 650; border-radius: 14px; transition: .2s ease; }
.desktop-nav a::after { content: ""; position: absolute; left: 50%; bottom: 10px; width: 0; height: 3px; border-radius: 999px; background: var(--blue); transform: translateX(-50%); transition: .2s ease; }
.desktop-nav a:hover { color: var(--deep); background: rgba(47,168,247,.07); }
.desktop-nav a.active { color: var(--deep); }
.desktop-nav a.active::after { width: 24px; }
.register-btn, .service-register, .primary-btn { display: inline-flex; align-items: center; justify-content: center; color: #fff; font-weight: 750; background: linear-gradient(135deg, var(--cyan) 0%, var(--blue) 48%, var(--deep) 100%); border-radius: 999px; box-shadow: 0 12px 24px rgba(19,124,216,.22); transition: transform .2s ease, box-shadow .2s ease; }
.register-btn { min-width: 92px; height: 42px; padding: 0 22px; }
.register-btn:hover, .service-register:hover, .primary-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 32px rgba(19,124,216,.28); }
.menu-toggle { display: none; width: 42px; height: 42px; border: 0; border-radius: 13px; background: var(--soft); padding: 10px; }
.menu-toggle span { display: block; height: 2px; margin: 4px 0; border-radius: 10px; background: var(--deep); }
.channel-bar { border-top: 1px solid rgba(47,168,247,.08); background: rgba(244,248,255,.92); }
.channel-scroll { display: flex; gap: 8px; align-items: center; overflow-x: auto; padding: 9px 0; scrollbar-width: none; }
.channel-scroll::-webkit-scrollbar { display: none; }
.channel-scroll a { flex: 0 0 auto; padding: 5px 12px; border-radius: 999px; color: var(--muted); font-size: 13px; line-height: 1.5; transition: .2s; }
.channel-scroll a:hover, .channel-scroll a.active { color: #fff; background: linear-gradient(135deg, var(--blue), var(--deep)); }

.drawer-overlay { position: fixed; inset: 0; z-index: 1190; background: rgba(16,43,70,.38); opacity: 0; visibility: hidden; transition: .25s; }
.mobile-drawer { position: fixed; inset: 0 auto 0 0; z-index: 1200; width: min(86vw, 360px); padding: 18px; background: #fff; transform: translateX(-102%); transition: .28s ease; overflow-y: auto; box-shadow: 30px 0 60px rgba(16,43,70,.22); }
.drawer-open .drawer-overlay { opacity: 1; visibility: visible; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--border); }
.drawer-head img { width: 145px; max-height: 42px; object-fit: contain; object-position: left center; }
.drawer-close { width: 40px; height: 40px; border: 0; border-radius: 12px; background: var(--soft); color: var(--deep); font-size: 28px; line-height: 1; }
.drawer-nav { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 9px; padding: 18px 0; }
.drawer-nav a { padding: 10px 12px; border-radius: 12px; color: #40566E; background: var(--soft); font-size: 14px; }
.drawer-nav a.active { color: #fff; background: linear-gradient(135deg, var(--blue), var(--deep)); }
.drawer-note { padding: 14px; border-radius: 14px; color: var(--muted); background: var(--soft-2); font-size: 13px; }

.hero-carousel-wrap { padding-top: 20px; }
.hero-carousel { position: relative; overflow: hidden; padding: 12px; background: var(--surface); border: 1px solid rgba(47,168,247,.12); border-radius: 34px; box-shadow: var(--shadow); }
.carousel-track { position: relative; aspect-ratio: 16 / 6.7; min-height: 280px; border-radius: 24px; overflow: hidden; background: var(--soft-3); }
.carousel-slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .5s ease; }
.carousel-slide.active { opacity: 1; visibility: visible; }
.carousel-slide img { width: 100%; height: 100%; object-fit: contain; background: #EAF2FB; }
.carousel-arrow { position: absolute; top: 50%; z-index: 3; width: 46px; height: 46px; border: 1px solid rgba(255,255,255,.7); border-radius: 50%; color: var(--deep); background: rgba(255,255,255,.9); box-shadow: 0 10px 24px rgba(16,43,70,.15); transform: translateY(-50%); font-size: 26px; }
.carousel-arrow.prev { left: 24px; }
.carousel-arrow.next { right: 24px; }
.carousel-dots { position: absolute; z-index: 3; left: 50%; bottom: 24px; display: flex; gap: 8px; transform: translateX(-50%); }
.carousel-dot { width: 9px; height: 9px; padding: 0; border: 0; border-radius: 999px; background: rgba(255,255,255,.66); box-shadow: 0 0 0 1px rgba(19,124,216,.14); transition: .2s; }
.carousel-dot.active { width: 28px; background: var(--blue); }

.content-section { padding: 46px 0; }
.content-section.compact { padding: 28px 0; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.section-heading > div { max-width: 760px; }
.eyebrow, .mini-tag { display: inline-flex; align-items: center; width: fit-content; color: var(--deep); background: rgba(47,168,247,.1); border: 1px solid rgba(47,168,247,.15); border-radius: 999px; font-size: 13px; font-weight: 750; letter-spacing: .04em; }
.eyebrow { padding: 6px 12px; margin-bottom: 10px; }
.mini-tag { padding: 4px 9px; margin-bottom: 10px; }
h1, h2, h3 { margin: 0; line-height: 1.35; color: var(--title); }
h1 { font-size: clamp(32px, 4.6vw, 54px); letter-spacing: -.03em; }
h2 { font-size: clamp(25px, 3.2vw, 38px); letter-spacing: -.02em; }
h3 { font-size: 20px; }
p { margin: 0; }
.section-heading p, .inner-hero__copy > p { margin-top: 12px; color: var(--muted); }
.text-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 14px; color: var(--deep); font-weight: 720; }
.text-link:hover { color: var(--blue); }

.brand-intro { display: grid; grid-template-columns: 1.08fr .92fr; gap: 28px; align-items: stretch; }
.brand-copy, .brand-media, .info-card, .feature-panel, .wide-card, .faq-panel, .review-card, .notice-strip, .content-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.brand-copy { padding: clamp(24px, 4vw, 46px); display: flex; flex-direction: column; justify-content: center; }
.brand-copy p { margin-top: 16px; color: #40556D; }
.brand-media { overflow: hidden; min-height: 340px; padding: 12px; }
.brand-media img, .content-visual img, .inner-hero__media img { width: 100%; height: 100%; object-fit: contain; border-radius: 16px; background: var(--soft-2); }

.quick-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.quick-item { padding: 22px; border-radius: 18px; background: linear-gradient(145deg, #fff, #F7FBFF); border: 1px solid var(--border); box-shadow: 0 10px 28px rgba(39,91,138,.07); transition: transform .2s, box-shadow .2s; }
.quick-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); }
.quick-item h3 { font-size: 18px; }
.quick-item p { margin-top: 8px; color: var(--muted); font-size: 14px; }
.quick-item a { display: inline-flex; margin-top: 12px; color: var(--deep); font-weight: 700; font-size: 14px; }

.notice-strip { padding: 22px 26px; color: #3D566F; background: linear-gradient(90deg, rgba(255,255,255,.98), rgba(237,245,255,.98)); border-left: 5px solid var(--blue); }
.dashboard-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.dashboard-item { padding: 22px; border-radius: 18px; color: #3C536C; background: rgba(255,255,255,.78); border: 1px solid var(--border); }
.dashboard-item strong { display: block; color: var(--deep); font-size: 17px; margin-bottom: 7px; }

.two-column { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 20px; }
.three-column, .info-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; }
.info-grid.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
.feature-panel, .wide-card, .content-card { overflow: hidden; }
.feature-panel { display: grid; grid-template-rows: 240px 1fr; }
.feature-panel figure, .content-visual { margin: 0; padding: 12px; background: var(--soft); }
.feature-panel figure img { width: 100%; height: 100%; object-fit: contain; border-radius: 15px; background: var(--soft-2); }
.feature-panel__body, .wide-card__body, .content-card__body { padding: 24px; }
.feature-panel__body p, .wide-card__body p, .content-card__body p, .info-card p { margin-top: 10px; color: var(--muted); }
.service-points { margin: 16px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.service-points li { position: relative; padding-left: 20px; color: #3F556D; }
.service-points li::before { content: ""; position: absolute; left: 0; top: .73em; width: 7px; height: 7px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 5px rgba(47,168,247,.11); }
.info-card { padding: 23px; }
.info-card h3 { color: var(--title); }

.split-feature { display: grid; grid-template-columns: .92fr 1.08fr; gap: 22px; align-items: stretch; }
.split-feature.reverse { grid-template-columns: 1.08fr .92fr; }
.split-feature.reverse .content-visual { order: 2; }
.content-visual { min-height: 320px; border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.content-card__body { display: flex; flex-direction: column; justify-content: center; min-height: 100%; }

.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.review-card { padding: 22px; }
.review-card p { color: #435A72; }
.review-card strong { display: block; margin-top: 14px; color: var(--deep); font-size: 14px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { overflow: hidden; background: #fff; border: 1px solid var(--border); border-radius: 16px; box-shadow: 0 8px 22px rgba(39,91,138,.06); }
.faq-item summary { position: relative; padding: 18px 52px 18px 20px; color: var(--title); font-weight: 750; cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); color: var(--blue); font-size: 24px; }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { padding: 0 20px 19px; color: var(--muted); }

.inner-hero { display: grid; grid-template-columns: 1.05fr .95fr; gap: 24px; padding: clamp(24px, 5vw, 52px); background: linear-gradient(135deg, rgba(255,255,255,.98), rgba(237,245,255,.96)); border: 1px solid var(--border); border-radius: var(--radius-xl); box-shadow: var(--shadow); }
.inner-hero__copy { display: flex; flex-direction: column; justify-content: center; }
.inner-hero__copy > p { max-width: 720px; font-size: 17px; }
.inner-hero__media { margin: 0; min-height: 320px; padding: 12px; border-radius: 22px; background: #fff; border: 1px solid var(--border); }
.hero-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.hero-links a { padding: 9px 15px; border-radius: 999px; color: var(--deep); background: rgba(47,168,247,.1); font-weight: 700; font-size: 14px; }
.breadcrumb { display: flex; gap: 9px; align-items: center; width: min(1180px, calc(100% - 40px)); margin: 22px auto 0; color: var(--muted); font-size: 14px; }
.breadcrumb a { color: var(--deep); }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 24px; }
.prose { padding: clamp(24px, 4vw, 42px); background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.prose h2 { margin-top: 34px; font-size: 27px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 24px; }
.prose p { margin-top: 14px; color: #40566D; }
.prose ul { margin: 14px 0 0; padding-left: 22px; color: #40566D; }
.prose li + li { margin-top: 8px; }
.side-panel { align-self: start; position: sticky; top: 150px; padding: 22px; background: rgba(255,255,255,.9); border: 1px solid var(--border); border-radius: 20px; box-shadow: var(--shadow-sm); }
.side-panel h2 { font-size: 20px; }
.side-panel nav { display: grid; gap: 9px; margin-top: 15px; }
.side-panel a { padding: 10px 12px; border-radius: 12px; color: #466078; background: var(--soft); font-size: 14px; }
.side-panel a:hover { color: #fff; background: var(--blue); }

.service-float { position: fixed; z-index: 850; right: max(16px, calc((100vw - 1260px)/2)); top: 50%; display: grid; gap: 7px; width: 104px; padding: 10px; border-radius: 18px; background: rgba(255,255,255,.92); border: 1px solid var(--border); box-shadow: var(--shadow); transform: translateY(-25%); backdrop-filter: blur(14px); }
.service-float a, .service-float button { display: flex; min-height: 36px; align-items: center; justify-content: center; border: 0; border-radius: 11px; color: var(--deep); background: var(--soft); font-size: 13px; font-weight: 700; }
.service-float .service-register { color: #fff; background: linear-gradient(135deg, var(--cyan), var(--deep)); }
.service-float button:hover, .service-float a:not(.service-register):hover { color: #fff; background: var(--blue); }

.site-footer { margin-top: 64px; color: var(--footer-text); background: var(--footer); }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 36px; padding: 56px 0 36px; }
.footer-grid h2 { margin-bottom: 14px; color: #fff; font-size: 17px; }
.footer-grid > div:not(.footer-brand) { display: flex; flex-direction: column; gap: 9px; }
.footer-grid a { color: rgba(234,246,255,.8); font-size: 14px; }
.footer-grid a:hover { color: #fff; }
.footer-brand img { width: 170px; max-height: 48px; object-fit: contain; object-position: left center; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 430px; margin-top: 16px; color: rgba(234,246,255,.75); font-size: 14px; }
.footer-app-link { display: inline-flex; width: fit-content; margin-top: 16px; padding: 8px 14px; border-radius: 999px; border: 1px solid rgba(234,246,255,.25); }
.compliance-note { padding: 20px 0; border-top: 1px solid rgba(234,246,255,.12); color: rgba(234,246,255,.72); font-size: 13px; }
.footer-bottom { border-top: 1px solid rgba(234,246,255,.1); background: rgba(0,0,0,.08); }
.footer-bottom .shell { min-height: 54px; display: flex; align-items: center; justify-content: space-between; gap: 18px; color: rgba(234,246,255,.65); font-size: 13px; }
.mobile-bottom { display: none; }

@media (max-width: 1280px) {
    .service-float { right: 10px; width: 92px; }
}
@media (max-width: 1080px) {
    .topbar { grid-template-columns: 155px 1fr auto; gap: 12px; }
    .brand-logo { width: 148px; }
    .desktop-nav a { padding: 0 11px; font-size: 14px; }
    .service-float { display: none; }
    .dashboard-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .review-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 820px) {
    :root { --header-h: 66px; }
    .shell, .section-shell, .breadcrumb { width: min(100% - 28px, 1180px); }
    .site-main { padding-top: 66px; }
    .topbar { grid-template-columns: 44px 1fr auto; height: 66px; }
    .menu-toggle { display: block; }
    .brand-logo { width: 142px; justify-self: center; }
    .brand-logo img { object-position: center; }
    .desktop-nav, .channel-bar { display: none; }
    .register-btn { min-width: 76px; height: 38px; padding: 0 17px; font-size: 14px; }
    .hero-carousel-wrap { padding-top: 14px; }
    .hero-carousel { padding: 8px; border-radius: 24px; }
    .carousel-track { min-height: 210px; border-radius: 18px; aspect-ratio: 16/8.2; }
    .carousel-arrow { width: 38px; height: 38px; font-size: 22px; }
    .carousel-arrow.prev { left: 16px; }
    .carousel-arrow.next { right: 16px; }
    .carousel-dots { bottom: 16px; }
    .brand-intro, .inner-hero, .split-feature, .split-feature.reverse, .article-layout { grid-template-columns: 1fr; }
    .split-feature.reverse .content-visual { order: 0; }
    .brand-media, .inner-hero__media { min-height: 280px; }
    .quick-grid, .three-column, .info-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .two-column { grid-template-columns: 1fr; }
    .side-panel { position: static; }
    .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
    .footer-grid > div:last-child { grid-column: 2 / -1; }
}
@media (max-width: 600px) {
    body { padding-bottom: 72px; }
    .section-shell { margin-top: 18px; margin-bottom: 18px; }
    .content-section { padding: 30px 0; }
    .section-heading { align-items: start; flex-direction: column; gap: 10px; }
    .carousel-track { min-height: 170px; aspect-ratio: 16/9.2; }
    .carousel-arrow { width: 34px; height: 34px; }
    .quick-grid, .dashboard-grid, .three-column, .info-grid, .info-grid.two, .review-grid { grid-template-columns: 1fr; }
    .feature-panel { grid-template-rows: 210px 1fr; }
    .brand-copy, .feature-panel__body, .wide-card__body, .content-card__body, .info-card, .prose { padding: 20px; }
    .brand-media, .inner-hero__media, .content-visual { min-height: 220px; }
    .inner-hero { padding: 22px; border-radius: 22px; }
    .hero-links { gap: 8px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px 18px; padding-top: 42px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-grid > div:last-child { grid-column: auto; }
    .footer-bottom .shell { padding: 10px 0; flex-direction: column; justify-content: center; gap: 2px; text-align: center; }
    .mobile-bottom { position: fixed; z-index: 900; inset: auto 0 0; display: grid; grid-template-columns: repeat(4,1fr); min-height: 64px; padding-bottom: env(safe-area-inset-bottom); background: rgba(255,255,255,.96); border-top: 1px solid var(--border); box-shadow: 0 -10px 30px rgba(16,43,70,.08); backdrop-filter: blur(14px); }
    .mobile-bottom a { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1px; color: var(--muted); font-size: 12px; }
    .mobile-bottom a span { display: grid; min-width: 24px; height: 24px; place-items: center; color: var(--deep); font-weight: 800; font-size: 12px; }
    .mobile-bottom a.active { color: var(--deep); font-weight: 750; }
}