:root {
    --bg: #f6f3ed;
    --paper: #fffaf2;
    --ink: #1d252c;
    --muted: #65727f;
    --line: #e3d8c8;
    --brand: #8a4b2c;
    --brand-2: #253f5c;
    --accent: #c78345;
    --shadow: 0 20px 50px rgba(29, 37, 44, .10);
    --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.75;
}
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(255, 250, 242, .94);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(18px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px 0; }
.brand-logo { display: inline-flex; align-items: center; gap: 12px; }
.brand-logo img { border-radius: 18px; box-shadow: 0 8px 24px rgba(37, 63, 92, .14); }
.brand-logo strong { display: block; font-size: 18px; letter-spacing: .02em; }
.brand-logo small { color: var(--muted); display: block; margin-top: -2px; }
.main-nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.main-nav a { padding: 8px 10px; border-radius: 999px; color: #324250; font-size: 14px; }
.main-nav a:hover { background: #efe1cf; color: var(--brand); }
.search-wrap { border-top: 1px solid rgba(227, 216, 200, .55); background: rgba(246, 243, 237, .7); }
.search-box { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 10px 0; }
.search-box label { font-weight: 700; color: var(--brand-2); white-space: nowrap; }
.search-box input { width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: 999px; background: #fff; }
.search-box button, .btn { border: 0; border-radius: 999px; padding: 12px 18px; cursor: pointer; font-weight: 800; }
.search-box button, .btn.primary { background: var(--brand-2); color: #fff; }
.btn.secondary { background: #ead9c4; color: var(--brand); }
.search-notice { grid-column: 2 / span 2; margin: 0; color: var(--brand); font-size: 14px; }
.breadcrumb { padding: 14px 0; font-size: 14px; color: var(--muted); display: flex; gap: 8px; flex-wrap: wrap; }
.breadcrumb a { color: var(--brand-2); }

.hero, .page-hero { padding: 54px 0 44px; }
.hero-grid, .page-hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr); gap: 36px; align-items: center; }
.eyebrow { margin: 0 0 10px; color: var(--accent); font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 14px; }
h1 { font-size: clamp(34px, 6vw, 64px); letter-spacing: -.04em; }
h2 { font-size: clamp(26px, 4vw, 42px); letter-spacing: -.03em; }
h3 { font-size: 20px; }
p { margin: 0 0 16px; }
.hero-lead, .page-hero p { font-size: 18px; color: #3b4a56; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 26px 0; }
.trust-list { display: flex; gap: 10px; flex-wrap: wrap; padding: 0; margin: 0; list-style: none; }
.trust-list li { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 8px 12px; color: var(--brand-2); font-weight: 700; }
.hero-media, .page-hero figure { margin: 0; background: var(--paper); padding: 12px; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.hero-media img, .page-hero img { border-radius: 18px; aspect-ratio: 4/3; object-fit: cover; }
figcaption { color: var(--muted); font-size: 13px; margin-top: 8px; }

.section { padding: 64px 0; }
.section.soft { background: #efe8dc; border-block: 1px solid var(--line); }
.section-head { max-width: 820px; margin-bottom: 28px; }
.section-head p { color: var(--muted); font-size: 17px; }
.feature-grid, .scene-grid, .review-grid, .help-grid, .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.scene-grid, .help-grid, .process-grid { grid-template-columns: repeat(3, 1fr); }
.card, .scene-item, .review-card, .article-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: 0 12px 30px rgba(29, 37, 44, .06); }
.card-icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 16px; background: #efe1cf; font-size: 24px; margin-bottom: 14px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; }
.tag-row span { border: 1px solid #d7c3aa; background: #fff; color: var(--brand); border-radius: 999px; padding: 4px 10px; font-size: 13px; font-weight: 700; }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 16px 0 0; }
.metrics div { background: #fff; border: 1px solid #eadbc8; border-radius: 14px; padding: 8px; }
.metrics dt { color: var(--muted); font-size: 12px; }
.metrics dd { margin: 0; color: var(--brand-2); font-weight: 900; }

.video-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.video-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.video-card figure { position: relative; margin: 0; overflow: hidden; }
.video-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; transition: transform .3s ease, filter .3s ease; }
.video-card:hover img, .video-card:focus-within img, .video-card:focus img { transform: scale(1.04); filter: brightness(.76); }
.play-button { position: absolute; inset: 50% auto auto 50%; transform: translate(-50%, -50%) scale(.9); width: 58px; height: 58px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: rgba(37, 63, 92, .86); opacity: 0; transition: opacity .25s ease, transform .25s ease; font-size: 22px; padding-left: 4px; }
.video-card:hover .play-button, .video-card:focus .play-button { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.duration { position: absolute; right: 12px; bottom: 12px; background: rgba(29, 37, 44, .78); color: #fff; border-radius: 999px; padding: 4px 8px; font-size: 12px; font-weight: 800; }
.video-card figcaption { padding: 0 14px 12px; }
.video-body { padding: 18px; }

.timeline { display: grid; gap: 16px; }
.timeline-item { background: var(--paper); border-left: 6px solid var(--accent); padding: 20px; border-radius: 18px; box-shadow: 0 10px 24px rgba(29, 37, 44, .06); }
.timeline-item time { color: var(--brand); font-weight: 900; }
.faq-list { display: grid; gap: 12px; }
details { background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 18px 20px; }
summary { cursor: pointer; font-weight: 900; color: var(--brand-2); }
summary + p { margin-top: 10px; color: #465662; }
.stars { color: var(--accent); letter-spacing: 2px; margin-bottom: 10px; }
.review-card span { color: var(--muted); }
.contact-section { background: linear-gradient(135deg, #253f5c, #5a3428); color: #fff; }
.contact-section .eyebrow { color: #ffd49b; }
.contact-grid { display: grid; grid-template-columns: .95fr 1.05fr; gap: 28px; align-items: start; }
.contact-list { padding: 0; margin: 20px 0 0; list-style: none; display: grid; gap: 10px; }
.contact-list li { background: rgba(255, 255, 255, .10); border: 1px solid rgba(255, 255, 255, .18); border-radius: 16px; padding: 12px; }
.contact-form { background: rgba(255, 250, 242, .95); color: var(--ink); border-radius: var(--radius); padding: 24px; display: grid; gap: 14px; }
.contact-form label { display: grid; gap: 6px; font-weight: 800; }
.contact-form input, .contact-form textarea { border: 1px solid var(--line); border-radius: 14px; padding: 12px; font: inherit; }
.page-hero.compact { padding-bottom: 22px; }
.narrow { max-width: 860px; }
.article-list { display: grid; gap: 16px; }

.site-footer { background: #1b252e; color: #edf2f6; padding: 44px 0; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 28px; }
.footer-logo img { box-shadow: none; }
.footer-links { padding: 0; margin: 0; list-style: none; display: grid; gap: 8px; }
.footer-links a { color: #dbe6ee; }
.footer-links a:hover { color: #ffd49b; }
.site-footer h2 { font-size: 20px; }
.site-footer p, .site-footer small { color: #cbd6df; }

@media (max-width: 980px) {
    .header-inner { align-items: flex-start; flex-direction: column; }
    .main-nav { justify-content: flex-start; }
    .hero-grid, .page-hero-grid, .contact-grid { grid-template-columns: 1fr; }
    .feature-grid, .video-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
    .scene-grid, .help-grid, .process-grid, .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .search-box { grid-template-columns: 1fr; }
    .search-notice { grid-column: auto; }
    .feature-grid, .video-grid, .review-grid { grid-template-columns: 1fr; }
    .metrics { grid-template-columns: 1fr; }
    h1 { font-size: 34px; }
    .section { padding: 44px 0; }
}