:root {
    --bg: #fffaf5;
    --panel: #ffffff;
    --ink: #1d2228;
    --muted: #667085;
    --line: #f0ddd2;
    --accent: #ff6f61;
    --accent-deep: #b83b4b;
    --soft: #fff1ec;
    --shadow: 0 18px 50px rgba(79, 42, 31, 0.12);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); line-height: 1.7; }
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,250,245,0.96); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.topline { text-align: center; font-size: 0.9rem; color: var(--muted); padding: 0.45rem 1rem; background: #fff; }
.navbar { max-width: 1180px; margin: 0 auto; padding: 0.8rem 1rem; display: flex; align-items: center; gap: 1rem; justify-content: space-between; }
.brand-logo { display: inline-flex; align-items: center; gap: 0.6rem; font-weight: 800; color: var(--accent-deep); letter-spacing: 0.02em; }
.brand-logo img { border-radius: 16px; box-shadow: 0 8px 20px rgba(184,59,75,0.18); }
.nav-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.75rem; font-size: 0.95rem; }
.nav-links a { padding: 0.35rem 0.55rem; border-radius: 999px; color: #3b4048; }
.nav-links a:hover { background: var(--soft); color: var(--accent-deep); }
.nav-toggle { display: none; border: 0; background: var(--accent); color: #fff; border-radius: 10px; padding: 0.45rem 0.7rem; font-size: 1.1rem; }
.search-wrap { max-width: 1180px; margin: 0 auto; padding: 0 1rem 0.9rem; display: grid; grid-template-columns: auto 1fr auto; gap: 0.6rem; align-items: center; }
.search-wrap label { font-weight: 700; color: var(--accent-deep); }
.search-wrap input { width: 100%; border: 1px solid var(--line); border-radius: 999px; padding: 0.72rem 1rem; background: #fff; font-size: 1rem; }
.search-wrap button, .btn { border: 0; border-radius: 999px; padding: 0.75rem 1.05rem; cursor: pointer; font-weight: 700; }
.search-wrap button, .btn.primary { background: var(--accent); color: #fff; box-shadow: 0 10px 24px rgba(255,111,97,0.25); }
.btn.ghost { background: #fff; border: 1px solid var(--line); color: var(--accent-deep); }
#searchTip { grid-column: 2 / 4; margin: 0; color: var(--muted); font-size: 0.9rem; }
main { overflow: hidden; }
.hero-section, .page-hero { max-width: 1180px; margin: 0 auto; padding: 4.5rem 1rem; }
.hero-section { display: grid; grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr); gap: 2rem; align-items: center; }
.breadcrumb, .eyebrow { color: var(--accent-deep); font-weight: 800; letter-spacing: 0.04em; }
h1, h2, h3 { line-height: 1.22; margin: 0 0 1rem; }
h1 { font-size: clamp(2.2rem, 5vw, 4.7rem); letter-spacing: -0.05em; }
h2 { font-size: clamp(1.55rem, 3vw, 2.6rem); letter-spacing: -0.03em; }
h3 { font-size: 1.12rem; }
.hero-lead, .page-hero p { font-size: 1.15rem; color: #4f5965; max-width: 720px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: 1.6rem 0; }
.metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.8rem; margin: 2rem 0 0; }
.metrics div { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 1rem; box-shadow: var(--shadow); }
.metrics dt { color: var(--muted); font-size: 0.9rem; }
.metrics dd { margin: 0; font-size: 1.6rem; font-weight: 900; color: var(--accent-deep); }
.hero-visual { border-radius: 34px; overflow: hidden; background: #fff; box-shadow: var(--shadow); border: 1px solid var(--line); }
.hero-visual figcaption { padding: 0.75rem 1rem; color: var(--muted); font-size: 0.9rem; }
.section-block { max-width: 1180px; margin: 0 auto; padding: 4rem 1rem; }
.soft-bg { max-width: none; padding-left: max(1rem, calc((100vw - 1180px) / 2 + 1rem)); padding-right: max(1rem, calc((100vw - 1180px) / 2 + 1rem)); background: var(--soft); }
.two-column { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.module-grid, .product-grid, .scene-grid, .review-grid { display: grid; gap: 1rem; margin-top: 1.4rem; }
.module-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.product-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.scene-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.review-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.module-card, .product-card, .scene-card, .review-card, .contact-card, .cards-list article, .timeline article { background: var(--panel); border: 1px solid var(--line); border-radius: 26px; padding: 1.2rem; box-shadow: var(--shadow); }
.product-card, .scene-card { overflow: hidden; padding: 0; }
.product-card figure, .scene-card img, .video-card figure { position: relative; margin: 0; overflow: hidden; background: #f8e7de; }
.product-card img, .scene-card img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform 0.35s ease; }
.product-card:hover img, .scene-card:hover img { transform: scale(1.04); }
.card-body, .scene-card h3, .scene-card h2, .scene-card p { padding-left: 1.1rem; padding-right: 1.1rem; }
.card-body { padding-top: 1rem; padding-bottom: 1.2rem; }
.scene-card h3, .scene-card h2 { margin-top: 1rem; }
.scene-card p { padding-bottom: 1.2rem; }
.tag { display: inline-block; margin-bottom: 0.7rem; padding: 0.25rem 0.6rem; border-radius: 999px; background: var(--soft); color: var(--accent-deep); font-weight: 800; font-size: 0.82rem; }
.video-stats { list-style: none; margin: 1rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.video-stats li { background: #fff7f4; border: 1px solid var(--line); border-radius: 999px; padding: 0.35rem 0.55rem; color: #5d4b46; font-size: 0.86rem; }
.video-card { position: relative; }
.play-overlay { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%) scale(0.8); width: 64px; height: 64px; border: 0; border-radius: 50%; background: rgba(255,255,255,0.92); color: var(--accent-deep); box-shadow: 0 14px 34px rgba(0,0,0,0.18); opacity: 0; transition: 0.25s ease; font-size: 1.35rem; cursor: pointer; }
.video-card:hover .play-overlay, .video-card:focus-within .play-overlay { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.featured-video video { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; background-image: url('/assets/images/hero-video.webp'); background-size: cover; background-position: center; }
.guide-list { background: #fff; border: 1px solid var(--line); border-radius: 28px; padding: 1.3rem 1.3rem 1.3rem 2.3rem; box-shadow: var(--shadow); }
.guide-list li { margin: 0.7rem 0; }
.faq-list { display: grid; gap: 0.8rem; margin-top: 1rem; }
details { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 1rem 1.2rem; }
summary { cursor: pointer; font-weight: 800; color: var(--accent-deep); }
.role { color: var(--muted); margin-top: -0.5rem; }
.json-link { margin-top: 1.2rem; color: var(--muted); }
.json-link a { color: var(--accent-deep); font-weight: 800; text-decoration: underline; }
.small-hero { padding-bottom: 2rem; }
.timeline { display: grid; gap: 1rem; }
.site-footer { background: #281817; color: #fffaf5; margin-top: 3rem; padding: 3rem 1rem 1.2rem; }
.footer-grid { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: 1.4fr 0.8fr 1fr; gap: 2rem; }
.site-footer a { display: block; color: #ffe4dc; margin: 0.4rem 0; }
.site-footer p { color: #f7cec4; }
.footer-logo { color: #fff; }
.copyright { max-width: 1180px; margin: 2rem auto 0; border-top: 1px solid rgba(255,255,255,0.16); padding-top: 1rem; font-size: 0.9rem; }
@media (max-width: 980px) {
    .hero-section, .two-column, .footer-grid { grid-template-columns: 1fr; }
    .module-grid, .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .scene-grid, .review-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .nav-toggle { display: inline-block; }
    .nav-links { display: none; width: 100%; flex-direction: column; padding-top: 0.8rem; }
    .nav-links.open { display: flex; }
    .navbar { flex-wrap: wrap; }
}
@media (max-width: 640px) {
    .search-wrap { grid-template-columns: 1fr; }
    #searchTip { grid-column: auto; }
    .module-grid, .product-grid, .scene-grid, .review-grid, .metrics { grid-template-columns: 1fr; }
    .hero-section, .page-hero, .section-block { padding-top: 2.4rem; padding-bottom: 2.4rem; }
    h1 { font-size: 2.25rem; }
}