:root {
    --bg: #f6f4ef;
    --panel: #ffffff;
    --ink: #202124;
    --muted: #666b73;
    --line: #e4dfd4;
    --brand: #1f3d3b;
    --accent: #9b6a3b;
    --soft: #efe7dc;
    --shadow: 0 20px 50px rgba(31, 61, 59, .12);
}
* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--ink); background: var(--bg); line-height: 1.7; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(246,244,239,.96); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 16px 0; }
.brand-logo, .footer-logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--brand); font-size: 20px; }
.brand-logo img, .footer-logo img { width: 42px; height: 42px; }
.main-nav { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 10px; font-size: 14px; }
.main-nav a { padding: 8px 10px; border-radius: 999px; color: var(--muted); }
.main-nav a:hover, .main-nav a.is-active { background: var(--soft); color: var(--brand); }
.search-strip { border-top: 1px solid var(--line); background: #fffaf2; }
.search-inner { display: flex; align-items: center; gap: 16px; padding: 10px 0; }
.search-form { display: flex; flex: 1; min-width: 260px; }
.search-form input { flex: 1; border: 1px solid var(--line); border-radius: 12px 0 0 12px; padding: 12px 14px; font-size: 15px; background: #fff; }
.search-form button { border: 0; border-radius: 0 12px 12px 0; padding: 0 18px; background: var(--brand); color: #fff; font-weight: 700; cursor: pointer; }
.search-notice { margin: 0; color: var(--muted); font-size: 13px; }
.hero { padding: 72px 0 56px; background: linear-gradient(135deg, #fffaf2 0%, #eaf1ed 100%); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr); gap: 42px; align-items: center; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-weight: 800; letter-spacing: .05em; }
h1, h2, h3 { line-height: 1.25; color: var(--brand); }
h1 { font-size: clamp(34px, 5vw, 60px); margin: 0 0 18px; }
h2 { font-size: clamp(26px, 3vw, 38px); margin: 0 0 14px; }
h3 { margin: 0 0 10px; font-size: 20px; }
.hero-lead, .section-head p, .page-hero p { font-size: 18px; color: var(--muted); }
.hero-actions, .trust-list { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.hero-actions { margin: 26px 0; }
.btn { display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; padding: 12px 20px; font-weight: 800; border: 1px solid var(--brand); }
.btn.primary { background: var(--brand); color: #fff; box-shadow: var(--shadow); }
.btn.ghost { background: transparent; color: var(--brand); }
.trust-list { list-style: none; padding: 0; margin: 0; }
.trust-list li { padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.75); color: var(--muted); }
.hero-card { margin: 0; background: var(--panel); border: 1px solid var(--line); border-radius: 28px; padding: 16px; box-shadow: var(--shadow); }
.hero-card img { border-radius: 20px; width: 100%; }
figcaption { color: var(--muted); font-size: 13px; margin-top: 10px; }
.section { padding: 72px 0; }
.section.alt, .page-hero { background: #fffaf2; }
.section-head { max-width: 820px; margin-bottom: 28px; }
.card-grid { display: grid; gap: 20px; }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.card-grid.three { grid-template-columns: repeat(3, 1fr); }
.card-grid.two { grid-template-columns: repeat(2, 1fr); }
.info-card, .review-card, .log-list article, .contact-form, .contact-aside { background: var(--panel); border: 1px solid var(--line); border-radius: 22px; padding: 24px; box-shadow: 0 10px 30px rgba(31,61,59,.06); }
.info-card p, .review-card p, .log-list p { color: var(--muted); margin-bottom: 0; }
.tag, .tags span { display: inline-flex; margin-top: 14px; padding: 6px 10px; border-radius: 999px; background: var(--soft); color: var(--brand); font-size: 13px; font-weight: 700; }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.timeline article { position: relative; padding: 24px; border-left: 4px solid var(--accent); background: var(--panel); border-radius: 18px; }
.timeline article::before { counter-increment: step; content: counter(step); position: absolute; top: -14px; right: 18px; width: 36px; height: 36px; border-radius: 50%; background: var(--brand); color: #fff; display: grid; place-items: center; font-weight: 800; }
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.video-card { overflow: hidden; border-radius: 24px; border: 1px solid var(--line); background: var(--panel); box-shadow: var(--shadow); }
.video-shell { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: #d8ded8; }
.video-shell video { width: 100%; height: 100%; object-fit: cover; display: block; background: #d8ded8; }
.play-button { position: absolute; inset: 0; display: grid; place-items: center; font-size: 48px; color: #fff; background: rgba(31,61,59,.38); opacity: 0; transform: scale(.92); transition: .2s ease; }
.video-card:hover .play-button { opacity: 1; transform: scale(1); }
.video-body { padding: 20px; }
.video-body p { color: var(--muted); }
.video-meta { font-weight: 800; color: var(--accent) !important; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; }
.tags span { margin-top: 0; }
.two-col { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: start; }
.log-list { display: grid; gap: 16px; }
.log-list time { color: var(--accent); font-weight: 800; }
.faq-list { display: grid; gap: 12px; }
details { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; }
summary { cursor: pointer; font-weight: 800; color: var(--brand); }
details p { color: var(--muted); }
.review-card strong { color: var(--brand); }
.contact-cta { background: linear-gradient(135deg, var(--brand), #2f5f59); color: #fff; }
.contact-cta h2, .contact-cta .eyebrow { color: #fff; }
.contact-cta p { color: rgba(255,255,255,.85); }
.contact-box { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.contact-box .btn.primary { background: #fff; color: var(--brand); border-color: #fff; }
.page-hero { padding: 56px 0; border-bottom: 1px solid var(--line); }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 10px; color: var(--muted); }
.breadcrumb a { color: var(--accent); font-weight: 800; }
.contact-layout { display: grid; grid-template-columns: 1fr .8fr; gap: 24px; align-items: start; }
.contact-form label { display: grid; gap: 8px; margin: 14px 0; font-weight: 800; color: var(--brand); }
.contact-form input, .contact-form textarea { width: 100%; border: 1px solid var(--line); border-radius: 12px; padding: 12px; font: inherit; }
.site-footer { background: #1d2928; color: rgba(255,255,255,.78); padding: 54px 0 0; }
.site-footer h2, .site-footer .footer-logo { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.1fr .7fr .9fr; gap: 30px; }
.footer-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-links a { color: rgba(255,255,255,.9); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 30px; padding: 16px; text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 980px) {
    .header-inner, .search-inner, .contact-box { align-items: stretch; flex-direction: column; }
    .main-nav { justify-content: flex-start; }
    .hero-grid, .two-col, .contact-layout, .footer-grid { grid-template-columns: 1fr; }
    .card-grid.four, .card-grid.three, .card-grid.two, .video-grid, .timeline { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .card-grid.four, .card-grid.three, .card-grid.two, .video-grid, .timeline { grid-template-columns: 1fr; }
    .section { padding: 48px 0; }
    .hero { padding: 48px 0; }
    .search-form { flex-direction: column; gap: 10px; }
    .search-form input, .search-form button { border-radius: 12px; min-height: 46px; }
}