* { box-sizing: border-box; }
:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #EAF7FF;
    --surface-alt: #F2FAFF;
    --blue: #1CA8F6;
    --blue-bright: #38C7FF;
    --blue-deep: #0877C9;
    --cyan: #7FE4FF;
    --text: #223044;
    --text-strong: #1D2A3A;
    --muted: #5F7082;
    --muted-2: #7A8A9A;
    --footer: #082A46;
    --shadow: 0 16px 40px rgba(8,119,201,.10);
    --shadow-soft: 0 10px 28px rgba(8,119,201,.08);
    --radius: 22px;
    --header-h: 116px;
}
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang 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; }
.shell, .section-shell { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }
.skip-link { position: fixed; left: 12px; top: -80px; z-index: 200; background: #fff; color: var(--blue-deep); padding: 10px 16px; border-radius: 12px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.site-header { position: fixed; inset: 0 0 auto; z-index: 100; background: rgba(255,255,255,.94); backdrop-filter: blur(12px); box-shadow: 0 8px 24px rgba(8,119,201,.08); }
.desktop-header { height: 72px; display: grid; grid-template-columns: 190px 1fr auto; align-items: center; gap: 24px; }
.brand-logo { display: inline-flex; align-items: center; min-width: 0; }
.brand-logo img { width: auto; height: 42px; object-fit: contain; }
.nav-core { display: flex; justify-content: center; align-items: center; gap: clamp(18px, 3vw, 38px); white-space: nowrap; }
.nav-core a { color: var(--text-strong); position: relative; font-weight: 700; padding: 22px 4px 18px; }
.nav-core a:hover, .nav-core a.active { color: var(--blue); }
.nav-core a.active::after { content: ""; position: absolute; left: 50%; bottom: 9px; width: 28px; height: 3px; border-radius: 999px; background: var(--blue); transform: translateX(-50%); }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 10px 22px; border-radius: 999px; color: #fff; font-weight: 800; background: linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%); box-shadow: 0 12px 26px rgba(8,119,201,.18); transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 34px rgba(8,119,201,.25); }
.header-register { min-width: 88px; }
.channel-bar { height: 44px; background: rgba(234,247,255,.88); border-top: 1px solid rgba(28,168,246,.10); border-bottom: 1px solid rgba(28,168,246,.10); overflow-x: auto; overflow-y: hidden; scrollbar-width: thin; }
.channel-inner { display: flex; align-items: center; gap: 8px; min-width: max-content; height: 100%; padding-block: 6px; }
.channel-bar a { color: var(--muted); border-radius: 999px; padding: 5px 12px; font-size: 14px; line-height: 1.5; }
.channel-bar a:hover, .channel-bar a.active { color: var(--blue-deep); background: rgba(28,168,246,.10); }
.mobile-header { display: none; }
.site-main { padding-top: calc(var(--header-h) + 24px); min-height: 70vh; }
.section-shell { margin-bottom: 34px; }
.section-block { padding: clamp(28px, 4vw, 48px); border-radius: var(--radius); }
.soft-section { background: linear-gradient(135deg, rgba(234,247,255,.88), rgba(255,255,255,.96)); border: 1px solid rgba(28,168,246,.10); }
.section-heading { max-width: 760px; margin: 0 auto 24px; text-align: center; }
.compact-heading { margin-left: 0; text-align: left; }
.section-kicker { margin: 0 0 5px; color: var(--blue); font-weight: 800; letter-spacing: .08em; font-size: 14px; }
h1, h2, h3, .section-title { color: var(--blue-deep); line-height: 1.25; margin-top: 0; }
h1 { font-size: clamp(34px, 5vw, 58px); letter-spacing: -.03em; margin-bottom: 16px; }
h2 { font-size: clamp(26px, 3.3vw, 40px); margin-bottom: 12px; }
h3 { font-size: 20px; margin-bottom: 8px; }
p { margin-top: 0; }
.lead { color: var(--muted); font-size: clamp(17px, 2vw, 20px); margin-bottom: 22px; }
.text-link { display: inline-flex; margin-top: 10px; color: var(--blue-deep); font-weight: 800; }
.text-link:hover { color: var(--blue); }
.banner-slider { width: min(1180px, calc(100% - 40px)); height: clamp(280px, 31vw, 370px); margin: 0 auto 34px; border-radius: 22px; background: #fff; box-shadow: 0 16px 40px rgba(8,119,201,.10); overflow: hidden; position: relative; z-index: 1; }
.banner-slider .slide { display: none; width: 100%; height: 100%; }
.banner-slider .slide.active { display: block; }
.banner-slider img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.slider-arrow { position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; width: 44px; height: 44px; border: none; border-radius: 999px; background: rgba(255,255,255,.9); color: var(--blue); font-size: 28px; cursor: pointer; box-shadow: 0 8px 20px rgba(8,119,201,.14); }
.slider-arrow:hover { background: #fff; color: var(--blue-deep); }
.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }
.slider-dots { position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%); display: flex; gap: 8px; z-index: 3; }
.slider-dots button { width: 10px; height: 10px; padding: 0; border-radius: 50%; border: 0; background: rgba(28,168,246,.26); cursor: pointer; }
.slider-dots button.active { background: var(--blue); }
.brand-intro, .inner-hero { display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(26px, 5vw, 64px); align-items: center; padding: clamp(34px, 5vw, 66px); background: #fff; border: 1px solid rgba(28,168,246,.12); border-radius: var(--radius); box-shadow: var(--shadow); }
.brand-intro img, .hero-visual img { width: 100%; max-height: 320px; object-fit: contain; }
.hero-visual { margin: 0; padding: 24px; border-radius: 20px; background: linear-gradient(150deg,#EAF7FF,#fff); min-height: 260px; display: flex; align-items: center; justify-content: center; }
.inner-hero-copy { min-width: 0; }
.pill-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.pill-card { background: #fff; border: 1px solid rgba(28,168,246,.14); border-radius: 18px; padding: 18px; box-shadow: var(--shadow-soft); }
.pill-card h3 { font-size: 18px; margin-bottom: 4px; }
.pill-card p { color: var(--muted); font-size: 14px; margin-bottom: 4px; }
.platform-strip { padding: 24px 28px; border-radius: 20px; background: linear-gradient(120deg,#fff,#EAF7FF); border: 1px solid rgba(28,168,246,.12); box-shadow: var(--shadow-soft); }
.platform-strip p { margin: 0; font-size: 17px; }
.dashboard-grid, .feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.info-card, .zone-card, .review-card, .prose-card, .content-card { background: #fff; border: 1px solid rgba(28,168,246,.12); box-shadow: var(--shadow-soft); border-radius: 20px; padding: 24px; }
.num { display: inline-flex; color: var(--blue); font-weight: 900; font-size: 13px; margin-bottom: 8px; }
.info-card p, .zone-card p, .review-card p { color: var(--muted); margin-bottom: 0; }
.dual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.content-card { display: grid; grid-template-columns: 180px 1fr; gap: 24px; align-items: center; }
.content-card figure, .zone-card figure { margin: 0; padding: 14px; background: var(--surface-alt); border-radius: 16px; }
.content-card img { width: 100%; height: 180px; object-fit: contain; }
.content-card ul { margin: 10px 0 0; padding-left: 18px; color: var(--muted); }
.triple-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.zone-card { padding: 18px; }
.zone-card figure { margin-bottom: 16px; }
.zone-card img { width: 100%; height: 170px; object-fit: contain; }
.text-wall { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.notice-card { background: linear-gradient(135deg,#fff,#F2FAFF); border: 1px solid rgba(28,168,246,.12); border-radius: 18px; padding: 24px; }
.check-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 10px; }
.check-list li { position: relative; padding-left: 28px; color: var(--muted); }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 20px; height: 20px; border-radius: 50%; background: #EAF7FF; color: var(--blue-deep); display: grid; place-items: center; font-size: 12px; font-weight: 900; }
.prose-card { padding: clamp(24px, 4vw, 38px); }
.prose-card p { color: var(--muted); font-size: 16px; }
.review-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.review-card { margin: 0; position: relative; }
.review-card::before { content: "“"; color: var(--cyan); font-size: 54px; line-height: 1; position: absolute; right: 18px; top: 10px; opacity: .55; }
.faq-list { display: grid; gap: 12px; }
.faq-list details { background: #fff; border: 1px solid rgba(28,168,246,.12); border-radius: 16px; padding: 16px 20px; box-shadow: 0 8px 20px rgba(8,119,201,.05); }
.faq-list summary { cursor: pointer; color: var(--text-strong); font-weight: 800; }
.faq-list details[open] summary { color: var(--blue-deep); }
.faq-list p { margin: 10px 0 0; color: var(--muted); }
.compliance-strip { display: grid; grid-template-columns: auto 1fr auto; gap: 18px; align-items: center; padding: 22px 26px; border-radius: 18px; background: #EDF8FF; border: 1px solid rgba(28,168,246,.15); }
.compliance-strip strong { color: var(--blue-deep); white-space: nowrap; }
.compliance-strip p { color: var(--muted); margin: 0; }
.floating-service { position: fixed; right: 18px; top: 42%; z-index: 60; display: grid; gap: 8px; }
.floating-service a, .floating-service button { min-width: 92px; padding: 9px 12px; border-radius: 13px; background: #fff; color: var(--blue-deep); border: 1px solid rgba(28,168,246,.14); box-shadow: 0 14px 30px rgba(8,119,201,.10); text-align: center; cursor: pointer; }
.floating-service a.register-link { background: linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%); color: #fff; }
.site-footer { margin-top: 54px; background: var(--footer); color: #EAF8FF; padding: 52px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3,1fr); gap: 40px; }
.footer-grid section { display: flex; flex-direction: column; gap: 8px; }
.footer-grid h2 { color: #fff; font-size: 18px; margin-bottom: 8px; }
.footer-grid a { color: #CFEFFF; }
.footer-grid a:hover { color: #fff; }
.footer-brand p { color: #BBD8EA; max-width: 380px; }
.footer-logo img { height: 44px; filter: brightness(0) invert(1); }
.footer-note { border-top: 1px solid rgba(255,255,255,.12); margin-top: 30px; padding-top: 22px; display: flex; justify-content: space-between; gap: 24px; color: #BBD8EA; font-size: 13px; }
.footer-note p { margin: 0; }
.mobile-drawer, .drawer-overlay, .mobile-bottom-nav { display: none; }

@media (max-width: 1180px) {
    .floating-service { display: none; }
    .dashboard-grid, .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .pill-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 900px) {
    .desktop-header { grid-template-columns: 150px 1fr auto; gap: 12px; }
    .nav-core { gap: 14px; }
    .nav-core a { font-size: 14px; }
    .brand-intro, .inner-hero { grid-template-columns: 1fr; }
    .hero-visual { min-height: 220px; }
    .content-card { grid-template-columns: 140px 1fr; }
    .content-card img { height: 150px; }
    .triple-grid { grid-template-columns: repeat(2,1fr); }
    .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
    .footer-grid section:last-child { grid-column: 2 / -1; }
}
@media (max-width: 760px) {
    :root { --header-h: 64px; }
    .shell, .section-shell { width: min(100% - 24px, 1180px); }
    .desktop-header, .channel-bar { display: none; }
    .mobile-header { height: 64px; display: grid; grid-template-columns: 70px 1fr 70px; align-items: center; }
    .mobile-logo { justify-content: center; }
    .mobile-logo img { height: 36px; max-width: 148px; }
    .menu-toggle { width: 44px; height: 44px; display: grid; place-content: center; gap: 5px; border: 0; border-radius: 12px; background: #EAF7FF; cursor: pointer; }
    .menu-toggle span { width: 22px; height: 2px; background: var(--blue-deep); border-radius: 99px; }
    .mobile-register { min-height: 36px; padding: 6px 13px; font-size: 14px; }
    .site-main { padding-top: calc(var(--header-h) + 16px); padding-bottom: 78px; }
    .banner-slider { width: calc(100% - 24px); height: clamp(160px, 52vw, 220px); border-radius: 16px; margin-bottom: 24px; }
    .slider-arrow { width: 38px; height: 38px; font-size: 24px; }
    .brand-intro, .inner-hero { padding: 26px 22px; border-radius: 18px; }
    .brand-intro img, .hero-visual img { max-height: 230px; }
    h1 { font-size: clamp(30px, 10vw, 42px); }
    h2 { font-size: clamp(24px, 7vw, 32px); }
    .section-block { padding: 26px 18px; }
    .pill-grid, .dashboard-grid, .feature-grid, .dual-grid, .triple-grid, .text-wall, .review-grid { grid-template-columns: 1fr; }
    .content-card { grid-template-columns: 1fr; padding: 18px; }
    .content-card img { height: 190px; }
    .zone-card img { height: 190px; }
    .compliance-strip { grid-template-columns: 1fr; gap: 8px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-grid section:last-child { grid-column: auto; }
    .footer-note { flex-direction: column; }
    .mobile-drawer { display: block; position: fixed; inset: 0 auto 0 0; width: min(84vw, 320px); background: #fff; z-index: 150; transform: translateX(-105%); transition: transform .25s ease; box-shadow: 20px 0 50px rgba(8,42,70,.18); overflow-y: auto; }
    .drawer-open .mobile-drawer { transform: translateX(0); }
    .drawer-overlay { display: block; position: fixed; inset: 0; background: rgba(8,42,70,.42); z-index: 140; opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s ease; }
    .drawer-open .drawer-overlay { opacity: 1; visibility: visible; }
    .drawer-head { position: sticky; top: 0; display: flex; align-items: center; justify-content: space-between; padding: 14px 16px; background: #fff; border-bottom: 1px solid rgba(28,168,246,.12); z-index: 2; }
    .drawer-head .brand-logo img { height: 36px; }
    .drawer-close { width: 38px; height: 38px; border: 0; border-radius: 50%; background: #EAF7FF; color: var(--blue-deep); font-size: 26px; line-height: 1; cursor: pointer; }
    .drawer-nav { padding: 12px 14px 34px; display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
    .drawer-nav a { padding: 10px 12px; border-radius: 12px; color: var(--muted); background: #F7FCFF; font-size: 14px; }
    .drawer-nav a.active { color: var(--blue-deep); background: #EAF7FF; font-weight: 800; }
    .mobile-bottom-nav { display: grid; position: fixed; z-index: 90; left: 0; right: 0; bottom: 0; grid-template-columns: repeat(4,1fr); padding: 7px 6px calc(7px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.96); backdrop-filter: blur(14px); border-top: 1px solid rgba(28,168,246,.14); box-shadow: 0 -8px 24px rgba(8,119,201,.08); }
    .mobile-bottom-nav a { display: grid; place-items: center; gap: 2px; color: var(--muted); font-size: 12px; }
    .mobile-bottom-nav span { min-width: 25px; height: 23px; display: grid; place-items: center; border-radius: 8px; background: #F2FAFF; color: var(--blue-deep); font-weight: 900; font-size: 11px; }
    .mobile-bottom-nav a.active { color: var(--blue-deep); font-weight: 800; }
    .mobile-bottom-nav a.active span { background: #DDF3FF; }
}
@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand, .footer-grid section:last-child { grid-column: auto; }
    .drawer-nav { grid-template-columns: 1fr; }
    .hero-visual { min-height: 180px; }
}