:root {
    --blue: #3f8fe5;
    --blue-dark: #2875c7;
    --blue-soft: #eaf4ff;
    --ink: #1f2d3d;
    --text: #34495e;
    --muted: #6f7f90;
    --line: #d8e4f0;
    --light: #f4f7fb;
    --light-2: #eef3f9;
    --shadow: 0 12px 32px rgba(43,97,153,0.10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: #ffffff;
    color: var(--text);
    font-family: Arial, "Microsoft YaHei", sans-serif;
    line-height: 1.75;
    overflow-x: hidden;
}
body.menu-open { overflow: hidden; }
a { color: #2f83d8; }
a:hover { color: var(--blue-dark); }
button, a { -webkit-tap-highlight-color: transparent; }
img { max-width: 100%; }
.skip-link { position: fixed; left: 16px; top: -80px; z-index: 20000; background: #fff; padding: 10px 14px; border: 2px solid var(--blue); border-radius: 8px; }
.skip-link:focus { top: 12px; }
.container { width: min(1160px, calc(100% - 40px)); margin: 0 auto; }
.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 9999;
    background: rgba(255,255,255,0.94);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid #e5edf5;
    box-shadow: 0 6px 20px rgba(43,97,153,0.08);
}
.header-inner {
    max-width: 1240px;
    min-height: 70px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}
.site-logo { display: inline-flex; align-items: center; flex: 0 0 auto; }
.site-logo img { display: block; max-height: 44px; width: auto; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: 6px; margin-left: auto; }
.nav-core a { color: var(--text); text-decoration: none; padding: 8px 10px; border-radius: 8px; white-space: nowrap; font-size: 15px; }
.nav-core a:hover, .nav-core a.active { color: var(--blue-dark); background: var(--blue-soft); }
.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.main-btn, .secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 22px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    position: relative;
    z-index: 2;
    pointer-events: auto;
    touch-action: manipulation;
    transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.main-btn { color: #fff; background: var(--blue); box-shadow: 0 10px 24px rgba(63,143,229,0.22); }
.main-btn:hover { color: #fff; background: #2f7fd3; transform: translateY(-1px); }
.secondary-btn { color: var(--blue-dark); border: 1px solid #b9d5ef; background: #fff; }
.secondary-btn:hover { background: var(--blue-soft); transform: translateY(-1px); }
.main-btn:focus-visible, .secondary-btn:focus-visible, .menu-toggle:focus-visible, .drawer-close:focus-visible, a:focus-visible { outline: 3px solid rgba(63,143,229,.35); outline-offset: 3px; }
.menu-toggle { width: 44px; height: 44px; display: inline-flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; border: 1px solid var(--line); border-radius: 8px; background: #fff; cursor: pointer; }
.menu-toggle span { width: 20px; height: 2px; background: var(--ink); border-radius: 2px; }
.drawer-overlay { position: fixed; inset: 0; z-index: 10000; background: rgba(21,42,64,.38); }
.site-drawer { position: fixed; top: 0; right: 0; z-index: 10001; width: min(390px, 88vw); height: 100vh; padding: 18px; background: #fff; box-shadow: -16px 0 45px rgba(25,58,91,.20); transform: translateX(105%); transition: transform .25s ease; overflow-y: auto; }
.site-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid #e5edf5; }
.drawer-logo img { max-height: 42px; display: block; }
.drawer-close { width: 44px; height: 44px; border: 1px solid var(--line); background: #fff; border-radius: 8px; font-size: 28px; line-height: 1; cursor: pointer; color: var(--ink); }
.drawer-nav { display: grid; gap: 4px; padding-top: 14px; }
.drawer-nav > a:not(.main-btn) { padding: 10px 12px; border-radius: 8px; text-decoration: none; color: var(--text); }
.drawer-nav > a:not(.main-btn):hover { background: var(--blue-soft); color: var(--blue-dark); }
.drawer-download { margin-top: 12px; }
.hero { position: relative; overflow: hidden; padding: 78px 0 64px; background: linear-gradient(180deg, #fff 0%, #f8fbff 100%); }
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }
.hero::before { width: 360px; height: 360px; right: -130px; top: -140px; background: #eaf4ff; }
.hero::after { width: 180px; height: 180px; left: -80px; bottom: -90px; background: #eef3f9; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr .92fr; align-items: center; gap: 64px; }
.eyebrow { display: inline-flex; align-items: center; min-height: 32px; padding: 0 12px; color: var(--blue-dark); background: var(--blue-soft); border-radius: 999px; font-size: 14px; font-weight: 700; }
h1, h2, h3, .section-title { color: var(--ink); line-height: 1.3; }
h1 { margin: 18px 0 14px; font-size: clamp(38px, 5vw, 64px); letter-spacing: -.02em; }
.hero-subtitle { margin: 0 0 18px; color: var(--blue-dark); font-size: clamp(20px, 2.4vw, 28px); line-height: 1.45; font-weight: 700; }
.hero-copy { margin: 0; max-width: 700px; font-size: 17px; color: #536577; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.hero-links { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 20px; }
.hero-links a { text-decoration: none; font-weight: 700; }
.hero-points { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px 16px; margin: 26px 0 0; padding: 0; list-style: none; }
.hero-points li { position: relative; padding-left: 22px; color: #516579; }
.hero-points li::before { content: ""; position: absolute; left: 0; top: .72em; width: 9px; height: 9px; border-radius: 50%; background: var(--blue); }
.hero-visual { display: flex; justify-content: center; }
.hero-visual img { max-width: 100%; height: auto; object-fit: contain; display: block; filter: drop-shadow(0 24px 32px rgba(34,91,146,.16)); }
.section { padding: 82px 0; }
.section-light { background: var(--light); }
.section-soft { background: var(--light-2); }
.section-head { max-width: 760px; margin: 0 auto 38px; text-align: center; }
.section-head.align-left { margin-left: 0; text-align: left; }
.section-title { margin: 0 0 12px; font-size: clamp(28px, 3.4vw, 42px); }
.section-lead { margin: 0; color: var(--muted); font-size: 17px; }
.info-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 20px; }
.info-card, .category-card, .review-card, .faq-card, .article-card, .notice-card { background: #fff; border: 1px solid var(--line); border-radius: 8px; box-shadow: 0 8px 24px rgba(43,97,153,0.06); }
.info-card { padding: 26px; }
.info-card h3 { margin: 0 0 10px; font-size: 20px; }
.info-card p { margin: 0; color: var(--muted); }
.category-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 30px; }
.category-card { min-height: 210px; padding: 28px; display: flex; flex-direction: column; border-color: #c9def1; transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease; }
.category-card:hover { transform: translateY(-4px); border-color: var(--blue); box-shadow: var(--shadow); }
.category-card:last-child { grid-column: 1 / -1; min-height: 170px; }
.category-card h3 { margin: 0 0 8px; color: var(--blue-dark); font-size: 22px; }
.category-card .tagline { color: #60778d; font-weight: 700; }
.category-card p { margin: 10px 0 20px; color: var(--muted); }
.category-card a { margin-top: auto; font-weight: 700; text-decoration: none; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split.reverse .feature-image { order: 2; }
.feature-image img, .content-img { max-width: 100%; height: auto; object-fit: contain; display: block; }
.feature-image { display: flex; justify-content: center; }
.feature-copy h2 { margin: 0 0 18px; font-size: clamp(28px, 3.2vw, 42px); }
.feature-copy p { margin: 0 0 16px; color: #536577; }
.feature-copy .main-btn, .feature-copy .secondary-btn { margin-top: 8px; }
.dual-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.article-card { padding: 34px; }
.article-card img { width: 100%; max-height: 260px; margin-bottom: 22px; }
.article-card h2, .article-card h3 { margin-top: 0; }
.article-card p:last-child { margin-bottom: 0; }
.notice-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; }
.notice-card { padding: 26px; }
.notice-type { display: inline-block; margin-bottom: 10px; color: var(--blue-dark); font-size: 13px; font-weight: 700; }
.notice-card h3 { margin: 0 0 10px; }
.notice-card p { margin: 0; color: var(--muted); }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px; }
.review-card { padding: 26px; }
.review-card p { margin: 0 0 16px; }
.review-card strong { color: var(--blue-dark); }
.faq-list { display: grid; gap: 14px; max-width: 920px; margin: 0 auto; }
details.faq-card { padding: 0; overflow: hidden; }
details.faq-card summary { min-height: 60px; padding: 18px 56px 18px 22px; position: relative; cursor: pointer; list-style: none; color: var(--ink); font-weight: 700; }
details.faq-card summary::-webkit-details-marker { display: none; }
details.faq-card summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); color: var(--blue); font-size: 24px; }
details.faq-card[open] summary::after { content: "−"; }
details.faq-card p { margin: 0; padding: 0 22px 22px; color: var(--muted); }
.risk-panel { padding: 32px; border: 1px solid #c9def1; border-left: 5px solid var(--blue); border-radius: 8px; background: #fff; }
.risk-panel h2, .risk-panel h3 { margin-top: 0; }
.risk-list { margin: 0; padding-left: 22px; }
.page-hero { padding: 64px 0 54px; background: linear-gradient(180deg, #f5faff 0%, #fff 100%); border-bottom: 1px solid #e8f0f7; }
.page-hero .container { max-width: 900px; }
.page-hero h1 { font-size: clamp(34px, 4.5vw, 54px); }
.breadcrumbs { color: var(--muted); font-size: 14px; }
.breadcrumbs a { text-decoration: none; }
.page-intro { font-size: 18px; color: #536577; }
.content-wrap { width: min(920px, calc(100% - 40px)); margin: 0 auto; }
.prose { font-size: 17px; }
.prose h2 { margin: 48px 0 16px; font-size: 30px; }
.prose h3 { margin: 32px 0 10px; font-size: 22px; }
.prose p { margin: 0 0 18px; }
.prose ul, .prose ol { padding-left: 24px; }
.prose li { margin-bottom: 8px; }
.prose .content-img { max-height: 360px; margin: 28px auto; }
.steps { counter-reset: step; display: grid; gap: 18px; margin: 28px 0; }
.step { position: relative; padding: 24px 24px 24px 76px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.step::before { counter-increment: step; content: counter(step); position: absolute; left: 24px; top: 24px; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: var(--blue); font-weight: 700; }
.step h3 { margin: 0 0 6px; }
.step p { margin: 0; color: var(--muted); }
.table-wrap { overflow-x: auto; margin: 24px 0; }
table { width: 100%; border-collapse: collapse; min-width: 620px; background: #fff; }
th, td { padding: 14px 16px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
th { background: var(--light); color: var(--ink); }
.status-pill { display: inline-flex; align-items: center; min-height: 28px; padding: 0 10px; border-radius: 999px; background: var(--blue-soft); color: var(--blue-dark); font-size: 13px; font-weight: 700; }
.contact-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 24px; }
.contact-card { padding: 28px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.contact-card h2, .contact-card h3 { margin-top: 0; }
.site-footer { background: #438ddf; color: #fff; padding: 58px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 42px; }
.footer-brand img { max-height: 46px; width: auto; filter: brightness(0) invert(1); }
.footer-brand p { margin: 18px 0 0; color: rgba(255,255,255,.84); }
.site-footer h2 { margin: 0 0 14px; color: #fff; font-size: 17px; }
.site-footer a { display: block; margin: 8px 0; color: rgba(255,255,255,.86); text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-risk { margin-top: 36px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.24); color: rgba(255,255,255,.88); }
.footer-bottom { margin-top: 20px; color: rgba(255,255,255,.76); font-size: 14px; }
.download-page { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: var(--light); }
.download-box { width: min(560px, 100%); padding: 42px; border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: var(--shadow); text-align: center; }
.download-box img { max-height: 52px; width: auto; }
.download-box h1 { font-size: 34px; }
.download-note { color: var(--muted); }
@media (max-width: 1100px) {
    .nav-core { display: none; }
    .info-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .footer-grid { grid-template-columns: 1.5fr repeat(2,1fr); }
    .footer-grid section:last-child { grid-column: 2 / 4; }
}
@media (max-width: 900px) {
    .hero { padding-top: 54px; }
    .hero-grid, .split { grid-template-columns: 1fr; gap: 38px; }
    .split.reverse .feature-image { order: initial; }
    .hero-copy-wrap { text-align: center; }
    .hero-copy { margin-left: auto; margin-right: auto; }
    .hero-actions, .hero-links { justify-content: center; }
    .hero-points { max-width: 580px; margin-left: auto; margin-right: auto; text-align: left; }
    .hero-visual img { max-height: 560px; }
    .category-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .category-card:last-child { grid-column: 1 / -1; }
    .dual-grid { grid-template-columns: 1fr; }
    .notice-grid, .review-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 768px) {
    .header-inner { min-height: 62px; padding: 0 14px; gap: 8px; }
    .site-logo img { max-height: 34px; max-width: 130px; }
    .header-actions { gap: 6px; }
    .header-download { min-height: 44px; padding: 0 14px; font-size: 14px; }
    .section { padding: 62px 0; }
    .container, .content-wrap { width: min(100% - 32px, 1160px); }
    .hero { padding: 44px 0 52px; }
    h1 { font-size: 39px; }
    .hero-subtitle { font-size: 21px; }
    .hero-points { grid-template-columns: 1fr; }
    .info-grid, .category-grid, .notice-grid, .review-grid, .contact-grid { grid-template-columns: 1fr; }
    .category-card:last-child { grid-column: auto; }
    .category-card { min-height: 0; }
    .main-btn, .secondary-btn { min-height: 46px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
    .footer-brand { grid-column: 1 / -1; }
    .footer-grid section:last-child { grid-column: auto; }
    .article-card { padding: 26px; }
    .risk-panel { padding: 24px; }
}
@media (max-width: 520px) {
    .site-logo img { max-width: 104px; }
    .header-download { padding: 0 11px; }
    .hero-actions { display: grid; }
    .hero-actions .main-btn, .hero-actions .secondary-btn { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand, .footer-grid section:last-child { grid-column: auto; }
    .download-box { padding: 30px 22px; }
}