:root {
    --bg: #f7f5ef;
    --surface: #ffffff;
    --ink: #1f2933;
    --muted: #667085;
    --line: #e6dfd2;
    --brand: #8d4b2f;
    --brand-dark: #5c3324;
    --soft: #ede2d2;
    --shadow: 0 18px 45px rgba(55, 35, 21, .10);
    font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.site-header { background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; backdrop-filter: blur(10px); }
.top-strip { display: flex; justify-content: space-between; gap: 16px; padding: 8px clamp(18px, 4vw, 56px); font-size: 14px; color: var(--muted); background: #fbfaf7; }
.main-nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px clamp(18px, 4vw, 56px); }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--brand-dark); }
.brand-logo-mark { width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-dark)); box-shadow: var(--shadow); }
.brand-logo-text { letter-spacing: .02em; }
.nav-links { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 6px; list-style: none; padding: 0; margin: 0; }
.nav-links a { display: block; padding: 9px 12px; border-radius: 999px; font-size: 15px; color: #384250; }
.nav-links a:hover, .nav-links a.is-active { background: var(--soft); color: var(--brand-dark); }
.nav-toggle { display: none; border: 1px solid var(--line); background: #fff; border-radius: 10px; padding: 8px 12px; }
.search-area { padding: 0 clamp(18px, 4vw, 56px) 14px; }
.brand-search { display: grid; grid-template-columns: 1fr auto; gap: 10px; max-width: 920px; }
.brand-search input, .contact-form input, .contact-form textarea { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 13px 15px; background: #fff; font: inherit; color: var(--ink); }
.brand-search button, .btn, .contact-form button { border: 0; border-radius: 14px; padding: 13px 18px; font-weight: 700; cursor: pointer; }
.brand-search button, .btn-primary { background: var(--brand-dark); color: #fff; }
.btn-secondary { background: var(--soft); color: var(--brand-dark); }
.search-message, .form-note { grid-column: 1 / -1; min-height: 24px; margin: 0; color: var(--brand-dark); font-size: 14px; }
.breadcrumb { padding: 0 clamp(18px, 4vw, 56px) 14px; color: var(--muted); font-size: 14px; display: flex; gap: 8px; flex-wrap: wrap; }
.section { padding: clamp(46px, 7vw, 88px) clamp(18px, 4vw, 56px); }
.hero, .page-hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(300px, .95fr); gap: clamp(24px, 5vw, 60px); align-items: center; }
.hero h1, .page-hero h1 { font-size: clamp(34px, 6vw, 62px); line-height: 1.1; margin: 10px 0 18px; color: var(--brand-dark); }
.hero-lead, .page-hero p { font-size: 18px; color: #4b5563; }
.eyebrow { margin: 0 0 8px; color: var(--brand); font-weight: 800; letter-spacing: .08em; }
.hero-domain { display: inline-flex; align-items: center; gap: 8px; margin: 12px 0 20px; padding: 10px 14px; background: #fff; border: 1px solid var(--line); border-radius: 999px; color: var(--brand-dark); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 18px 0; }
.trust-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.trust-row span { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 8px 12px; color: #475467; font-size: 14px; }
.hero-visual, .page-hero figure { margin: 0; background: #fff; border: 1px solid var(--line); border-radius: 28px; padding: 14px; box-shadow: var(--shadow); }
.hero-visual img, .page-hero img { border-radius: 20px; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
figcaption { margin-top: 10px; font-size: 13px; color: var(--muted); }
.intro-panel, .split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 26px; align-items: start; }
.consultant-card, .plain-card, .feature-card, .review-card, .video-card, .update-list article, .timeline-item { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 22px; box-shadow: 0 10px 30px rgba(40, 35, 30, .06); }
.section-heading { max-width: 820px; margin-bottom: 28px; }
.section-heading h2, .intro-panel h2, .split h2, .site-footer h2 { margin: 0 0 12px; color: var(--brand-dark); font-size: clamp(26px, 4vw, 40px); line-height: 1.2; }
.muted { background: #efe8dc; }
.card-grid { display: grid; gap: 18px; }
.card-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.feature-icon { display: inline-flex; align-items: center; justify-content: center; min-width: 48px; height: 48px; padding: 0 10px; border-radius: 14px; background: var(--soft); color: var(--brand-dark); font-weight: 800; margin-bottom: 12px; }
.tag-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.tag-row span { border: 1px solid var(--line); background: #fbfaf7; color: var(--brand-dark); border-radius: 999px; padding: 5px 10px; font-size: 13px; }
.video-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.video-card { overflow: hidden; padding: 0; }
.video-shell { position: relative; background: #111827; }
.video-shell video { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: cover; background-size: cover; }
.play-button { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%) scale(.92); opacity: 0; border: 0; border-radius: 999px; background: rgba(255,255,255,.94); color: var(--brand-dark); padding: 12px 18px; font-weight: 800; transition: .22s ease; }
.video-card:hover .play-button, .video-card:focus-within .play-button { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-body { padding: 22px; }
.video-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-top: 14px; font-size: 13px; color: #475467; }
.video-stats span { background: #f8f3ec; border-radius: 12px; padding: 8px; text-align: center; }
.timeline { display: grid; gap: 14px; }
.timeline-item { display: grid; grid-template-columns: 60px 1fr; gap: 16px; }
.timeline-item > span { width: 48px; height: 48px; border-radius: 50%; background: var(--brand-dark); color: #fff; display: grid; place-items: center; font-weight: 800; }
.update-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.update-list.expanded { grid-template-columns: repeat(2, minmax(0, 1fr)); }
time { color: var(--brand); font-weight: 800; }
.faq-list { display: grid; gap: 12px; max-width: 980px; }
.faq-list.wide { max-width: none; }
details { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 16px 18px; }
summary { cursor: pointer; font-weight: 800; color: var(--brand-dark); }
.review-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.review-card strong { display: inline-flex; color: var(--brand-dark); font-size: 22px; }
.contact-cta { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; background: var(--brand-dark); color: #fff; }
.contact-cta h2, .contact-cta .eyebrow { color: #fff; }
.contact-form { display: grid; gap: 14px; background: #fff; color: var(--ink); border-radius: 24px; padding: 24px; }
.contact-form label { display: grid; gap: 6px; font-weight: 700; }
.contact-form textarea { min-height: 120px; resize: vertical; }
.number-list, .check-list { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 24px 24px 24px 44px; }
.json-preview { white-space: pre-wrap; word-break: break-word; background: #18202c; color: #e6edf3; border-radius: 18px; padding: 18px; overflow: auto; }
.site-footer { background: #1f1a17; color: #f7f5ef; padding: 44px clamp(18px, 4vw, 56px) 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 26px; }
.footer-logo .brand-logo-mark { background: #f7f5ef; color: var(--brand-dark); }
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); margin-top: 28px; padding-top: 18px; color: #cfc7bd; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.text-link { color: var(--brand-dark); font-weight: 800; border-bottom: 2px solid var(--brand); }
@media (max-width: 1024px) {
    .hero, .page-hero, .intro-panel, .split, .contact-cta { grid-template-columns: 1fr; }
    .card-grid.four, .card-grid.three, .video-grid, .review-grid, .update-list, .update-list.expanded, .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
    .top-strip { flex-direction: column; gap: 4px; }
    .main-nav { align-items: flex-start; }
    .nav-toggle { display: inline-flex; }
    .nav-links { display: none; width: 100%; flex-direction: column; align-items: stretch; }
    .nav-links.is-open { display: flex; }
    .main-nav { flex-wrap: wrap; }
    .brand-search { grid-template-columns: 1fr; }
    .card-grid.four, .card-grid.three, .video-grid, .review-grid, .update-list, .update-list.expanded, .footer-grid { grid-template-columns: 1fr; }
    .video-stats { grid-template-columns: 1fr; }
    .section { padding: 38px 18px; }
}