:root {
    --bg: #F4FBFF;
    --surface: #FFFFFF;
    --surface-soft: #E8F7FF;
    --primary: #10AEEA;
    --primary-strong: #1688D8;
    --heading: #155A9D;
    --text: #24384A;
    --muted: #60758A;
    --border: rgba(16, 174, 234, 0.18);
    --footer: #073A68;
    --footer-text: #EAF8FF;
    --shadow: 0 20px 60px rgba(21, 90, 157, 0.12);
    --shadow-soft: 0 12px 34px rgba(21, 90, 157, 0.09);
    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;
    --header-height: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 320px;
    overflow-x: hidden;
    background:
        radial-gradient(circle at 10% 4%, rgba(53, 215, 255, 0.12), transparent 30%),
        linear-gradient(180deg, #FFFFFF 0%, var(--bg) 28%, #FFFFFF 100%);
    color: var(--text);
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", 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, select { font: inherit; }
button { color: inherit; }

.skip-link {
    position: fixed;
    top: 8px;
    left: 8px;
    z-index: 3000;
    transform: translateY(-160%);
    padding: 10px 14px;
    border-radius: 10px;
    background: var(--footer);
    color: #fff;
}
.skip-link:focus { transform: translateY(0); }

.site-header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 1000;
    height: var(--header-height);
    background: rgba(255,255,255,0.96);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 28px rgba(21, 90, 157, 0.07);
    backdrop-filter: blur(16px);
}
.header-inner {
    width: min(calc(100% - 32px), 1360px);
    height: 100%;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: clamp(10px, 1.25vw, 22px);
}
.brand-logo { flex: 0 0 auto; display: inline-flex; align-items: center; }
.brand-logo img, .footer-logo img { width: auto; max-width: 160px; height: 46px; object-fit: contain; }
.desktop-nav {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: clamp(3px, .55vw, 10px);
    white-space: nowrap;
}
.desktop-nav a {
    position: relative;
    flex: 0 0 auto;
    padding: 9px clamp(3px, .42vw, 7px);
    border-radius: 10px;
    color: var(--text);
    font-size: clamp(12px, .94vw, 14px);
    font-weight: 600;
    transition: color .2s ease, background .2s ease;
}
.desktop-nav a:hover,
.desktop-nav a.active { color: var(--primary-strong); background: var(--surface-soft); }
.header-actions { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
.main-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 24px;
    border: 0;
    border-radius: 999px;
    background: linear-gradient(135deg, #35D7FF 0%, #1688D8 100%);
    box-shadow: 0 10px 24px rgba(22, 136, 216, 0.22);
    color: #fff;
    font-weight: 700;
    white-space: nowrap;
    transition: transform .2s ease, box-shadow .2s ease;
}
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(22, 136, 216, 0.28); }
.header-register { min-width: 82px; padding-inline: 20px; }
.menu-toggle {
    display: none;
    width: 46px;
    height: 46px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #fff;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}
.menu-toggle span { width: 21px; height: 2px; border-radius: 2px; background: var(--heading); }

.site-main { padding-top: var(--header-height); }
.section-shell { width: min(calc(100% - 32px), 1200px); margin-inline: auto; }
.section-block { padding-block: clamp(56px, 7vw, 92px); }
.section-block + .section-block { padding-top: 0; }
.section-heading { max-width: 780px; margin-bottom: 30px; }
.section-heading.center { margin-inline: auto; text-align: center; }
.section-heading h2,
.page-intro h1,
.home-intro h1 { margin: 8px 0 14px; color: var(--heading); line-height: 1.2; letter-spacing: -0.02em; }
.section-heading h2 { font-size: clamp(28px, 4vw, 44px); }
.page-intro h1, .home-intro h1 { font-size: clamp(36px, 6vw, 68px); }
.section-heading p, .lead { margin: 0; color: var(--muted); font-size: clamp(16px, 1.8vw, 19px); }
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-strong);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .13em;
}
.eyebrow::before { content: ""; width: 24px; height: 3px; border-radius: 3px; background: var(--primary); }
.text-link { color: var(--primary-strong); font-weight: 700; }
.text-link:hover { text-decoration: underline; text-underline-offset: 4px; }

.hero-slider-wrap { padding-top: clamp(18px, 3vw, 34px); }
.hero-slider {
    position: relative;
    width: min(calc(100% - 32px), 1360px);
    aspect-ratio: 16 / 6.4;
    min-height: 280px;
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: clamp(18px, 3vw, 32px);
    background: var(--surface-soft);
    box-shadow: var(--shadow);
}
.hero-slide { position: absolute; inset: 0; margin: 0; opacity: 0; pointer-events: none; transition: opacity .55s ease; }
.hero-slide.is-active { opacity: 1; pointer-events: auto; }
.hero-slide img { width: 100%; height: 100%; object-fit: contain; background: var(--surface-soft); }
.slider-arrow {
    position: absolute;
    top: 50%;
    z-index: 5;
    width: 46px;
    height: 46px;
    border: 1px solid rgba(255,255,255,.55);
    border-radius: 50%;
    background: rgba(7,58,104,.58);
    color: #fff;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    transform: translateY(-50%);
    backdrop-filter: blur(8px);
}
.slider-arrow:hover { background: rgba(7,58,104,.78); }
.slider-arrow.prev { left: clamp(12px, 2vw, 28px); }
.slider-arrow.next { right: clamp(12px, 2vw, 28px); }
.slider-dots {
    position: absolute;
    left: 50%;
    bottom: 16px;
    z-index: 5;
    display: flex;
    gap: 8px;
    transform: translateX(-50%);
}
.slider-dot {
    width: 10px;
    height: 10px;
    padding: 0;
    border: 1px solid rgba(255,255,255,.82);
    border-radius: 50%;
    background: rgba(7,58,104,.42);
    cursor: pointer;
}
.slider-dot.is-active { width: 28px; border-radius: 999px; background: #fff; }

.home-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
    gap: clamp(28px, 5vw, 70px);
    align-items: center;
}
.home-intro-copy { max-width: 760px; }
.intro-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; margin-top: 28px; }
.stat-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.stat-card { padding: 24px; border: 1px solid var(--border); border-radius: var(--radius-md); background: rgba(255,255,255,.86); box-shadow: var(--shadow-soft); }
.stat-card strong { display: block; color: var(--primary-strong); font-size: 28px; line-height: 1.2; }
.stat-card span { color: var(--muted); font-size: 14px; }

.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.card-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.info-card, .shortcut-card, .review-card, .faq-item, .notice-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: rgba(255,255,255,.94);
    box-shadow: var(--shadow-soft);
}
.info-card, .shortcut-card { padding: clamp(22px, 3vw, 30px); }
.info-card h3, .shortcut-card h3 { margin: 0 0 10px; color: var(--heading); font-size: 21px; }
.info-card p, .shortcut-card p { margin: 0 0 16px; color: var(--muted); }
.shortcut-card { position: relative; overflow: hidden; }
.shortcut-card::after { content: ""; position: absolute; width: 90px; height: 90px; right: -35px; bottom: -35px; border-radius: 50%; background: rgba(53,215,255,.12); }

.feature-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, .92fr);
    gap: clamp(28px, 5vw, 64px);
    align-items: center;
}
.feature-row.reverse .feature-media { order: 2; }
.feature-copy h2 { margin: 8px 0 16px; color: var(--heading); font-size: clamp(28px, 4vw, 44px); line-height: 1.2; }
.feature-copy p { margin: 0 0 16px; color: var(--muted); }
.feature-list { margin: 20px 0 24px; padding: 0; list-style: none; display: grid; gap: 10px; }
.feature-list li { position: relative; padding-left: 26px; }
.feature-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--primary-strong); font-weight: 800; }
.feature-media { min-width: 0; }
.feature-media img,
.page-intro-media img {
    width: 100%;
    max-height: 440px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    background: var(--surface-soft);
    box-shadow: var(--shadow);
}

.soft-band { padding-block: clamp(54px, 7vw, 88px); background: linear-gradient(135deg, rgba(232,247,255,.96), rgba(255,255,255,.96)); border-block: 1px solid var(--border); }
.notice-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.notice-card { padding: 28px; }
.notice-card h3 { margin: 0 0 10px; color: var(--heading); }
.notice-card p { margin: 0; color: var(--muted); }

.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.review-card { position: relative; min-height: 220px; padding: 30px; overflow: hidden; }
.review-card p { margin: 18px 0 24px; color: var(--text); }
.review-card strong { color: var(--primary-strong); }
.review-mark { position: absolute; top: 4px; right: 18px; color: rgba(16,174,234,.12); font-family: Georgia, serif; font-size: 90px; line-height: 1; }

.faq-list { display: grid; gap: 14px; }
.faq-item { padding: 0; overflow: hidden; }
.faq-item summary { padding: 22px 26px; color: var(--heading); font-weight: 750; cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; float: right; color: var(--primary-strong); font-size: 24px; line-height: 1; }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { margin: 0; padding: 0 26px 24px; color: var(--muted); }

.page-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr);
    gap: clamp(28px, 6vw, 78px);
    align-items: center;
    padding-block: clamp(58px, 9vw, 112px);
}
.page-intro:not(:has(.page-intro-media)) { grid-template-columns: minmax(0, 880px); }
.page-intro-copy { max-width: 780px; }
.page-intro-media { margin: 0; }
.content-prose { max-width: 860px; }
.content-prose h2 { margin: 0 0 16px; color: var(--heading); font-size: clamp(27px, 3.5vw, 40px); }
.content-prose h3 { margin: 28px 0 10px; color: var(--heading); font-size: 22px; }
.content-prose p { margin: 0 0 18px; color: var(--muted); }
.split-layout { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); gap: 40px; align-items: start; }
.side-panel { position: sticky; top: calc(var(--header-height) + 24px); padding: 28px; border: 1px solid var(--border); border-radius: var(--radius-md); background: #fff; box-shadow: var(--shadow-soft); }
.side-panel h2 { margin: 0 0 14px; color: var(--heading); font-size: 24px; }
.side-panel ul { margin: 0; padding-left: 20px; color: var(--muted); }

.compliance-panel {
    margin-bottom: clamp(56px, 8vw, 100px);
    padding: clamp(28px, 4vw, 46px);
    display: grid;
    grid-template-columns: minmax(230px, .7fr) minmax(0, 1.3fr);
    gap: 28px;
    align-items: center;
    border: 1px solid rgba(16,174,234,.28);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #E8F7FF 0%, #FFFFFF 100%);
    box-shadow: var(--shadow-soft);
}
.compliance-panel h2 { margin: 8px 0 0; color: var(--heading); font-size: clamp(25px, 3vw, 36px); line-height: 1.25; }
.compliance-panel p { margin: 0; color: var(--muted); }

.cta-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    padding: clamp(30px, 5vw, 54px);
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #0EADE9 0%, #155A9D 100%);
    box-shadow: var(--shadow);
    color: #fff;
}
.cta-panel h2 { margin: 0 0 8px; font-size: clamp(27px, 4vw, 40px); line-height: 1.2; }
.cta-panel p { margin: 0; color: rgba(255,255,255,.82); }
.cta-panel .main-btn { background: #fff; color: var(--heading); box-shadow: none; }

.site-footer { background: var(--footer); color: var(--footer-text); }
.footer-inner { width: min(calc(100% - 32px), 1200px); margin: 0 auto; padding: 64px 0 42px; display: grid; grid-template-columns: minmax(250px, .8fr) minmax(0, 1.2fr); gap: 70px; }
.footer-logo { display: inline-flex; padding: 8px 12px; border-radius: 14px; background: #fff; }
.footer-brand p { max-width: 460px; color: rgba(234,248,255,.74); }
.footer-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.footer-links h2 { margin: 0 0 14px; color: #fff; font-size: 16px; }
.footer-links a { display: block; margin: 8px 0; color: rgba(234,248,255,.74); }
.footer-links a:hover { color: #fff; }
.footer-bottom { width: min(calc(100% - 32px), 1200px); margin: 0 auto; padding: 22px 0 32px; display: flex; justify-content: space-between; gap: 24px; border-top: 1px solid rgba(234,248,255,.16); color: rgba(234,248,255,.66); font-size: 13px; }
.footer-bottom p { margin: 0; }

.drawer-overlay { position: fixed; inset: 0; z-index: 1200; background: rgba(7,58,104,.42); opacity: 0; visibility: hidden; transition: opacity .25s ease, visibility .25s ease; }
.mobile-drawer { position: fixed; top: 0; right: 0; z-index: 1300; width: min(88vw, 380px); height: 100dvh; padding: 22px; overflow-y: auto; background: #fff; box-shadow: -24px 0 70px rgba(7,58,104,.22); transform: translateX(104%); transition: transform .25s ease; }
.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: 20px; border-bottom: 1px solid var(--border); }
.drawer-close { width: 42px; height: 42px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-soft); color: var(--heading); font-size: 28px; line-height: 1; cursor: pointer; }
.mobile-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; padding: 20px 0; }
.mobile-nav a { padding: 12px 14px; border-radius: 12px; background: var(--surface-soft); color: var(--heading); font-weight: 650; }
.drawer-register { width: 100%; }

@media (max-width: 1179px) {
    .desktop-nav { display: none; }
    .menu-toggle { display: inline-flex; }
    .header-inner { justify-content: space-between; }
}
@media (max-width: 900px) {
    .home-intro, .page-intro, .feature-row, .split-layout, .compliance-panel, .footer-inner { grid-template-columns: 1fr; }
    .feature-row.reverse .feature-media { order: 0; }
    .card-grid, .card-grid.four, .notice-grid, .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .side-panel { position: static; }
    .footer-inner { gap: 38px; }
    .footer-bottom { flex-direction: column; }
}
@media (max-width: 640px) {
    :root { --header-height: 68px; }
    .header-inner, .section-shell, .footer-inner, .footer-bottom { width: min(calc(100% - 24px), 1200px); }
    .brand-logo img { max-width: 124px; height: 38px; }
    .header-register { min-width: 72px; min-height: 40px; padding: 8px 16px; }
    .menu-toggle { width: 42px; height: 42px; }
    .hero-slider { width: calc(100% - 24px); min-height: 205px; aspect-ratio: 16 / 9; border-radius: 18px; }
    .slider-arrow { width: 38px; height: 38px; font-size: 22px; }
    .slider-dots { bottom: 10px; }
    .card-grid, .card-grid.four, .notice-grid, .review-grid, .stat-list { grid-template-columns: 1fr; }
    .section-block { padding-block: 52px; }
    .section-block + .section-block { padding-top: 0; }
    .page-intro { padding-block: 52px 66px; }
    .page-intro h1, .home-intro h1 { font-size: clamp(34px, 12vw, 48px); }
    .cta-panel { align-items: flex-start; flex-direction: column; }
    .footer-links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .mobile-nav { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}