:root {
    --bg: #f7f4ef;
    --panel: #ffffff;
    --text: #1f2933;
    --muted: #64748b;
    --brand: #d75b24;
    --brand-dark: #8a3416;
    --line: #eadfd1;
    --soft: #fff7ed;
    --shadow: 0 18px 48px rgba(31, 41, 55, .10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text);
    background: linear-gradient(180deg, #fffaf3 0%, var(--bg) 46%, #ffffff 100%);
    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, 255, 255, .94);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
}
.header-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.logo, .footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 900;
    color: var(--brand-dark);
}
.logo-mark {
    width: 38px;
    height: 38px;
    display: inline-grid;
    place-items: center;
    color: #fff;
    background: linear-gradient(135deg, var(--brand), #f59e0b);
    border-radius: 12px;
    box-shadow: var(--shadow);
}
.logo-text { font-size: 22px; }
.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
    justify-content: flex-end;
}
.main-nav a {
    padding: 8px 10px;
    border-radius: 999px;
    color: #475569;
    font-weight: 700;
    font-size: 14px;
}
.main-nav a:hover, .main-nav a.active { background: var(--soft); color: var(--brand-dark); }
.search-strip {
    border-top: 1px solid #f2e7d8;
    padding: 10px 20px 13px;
    background: #fffdf9;
}
.search-form {
    max-width: 860px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto minmax(180px, 1fr) auto;
    gap: 10px;
    align-items: center;
}
.search-form label { font-weight: 800; color: var(--brand-dark); }
.search-form input {
    min-height: 42px;
    border: 1px solid #e7d9c8;
    border-radius: 999px;
    padding: 0 16px;
    outline: none;
    background: #fff;
}
.search-form input:focus { border-color: var(--brand); box-shadow: 0 0 0 4px rgba(215, 91, 36, .12); }
.search-form button, .btn {
    border: 0;
    border-radius: 999px;
    background: var(--brand);
    color: #fff;
    font-weight: 800;
    padding: 12px 18px;
    cursor: pointer;
    box-shadow: 0 12px 24px rgba(215, 91, 36, .22);
}
.btn.secondary { background: #1f2937; box-shadow: none; }
.search-notice { max-width: 860px; min-height: 20px; margin: 6px auto 0; color: var(--muted); font-size: 14px; }
.hero {
    max-width: 1180px;
    margin: 0 auto;
    padding: 62px 20px 34px;
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 36px;
    align-items: center;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 999px;
    background: #fff;
    color: var(--brand-dark);
    font-weight: 900;
    border: 1px solid var(--line);
}
h1 { font-size: clamp(34px, 5vw, 64px); line-height: 1.08; margin: 18px 0; letter-spacing: -1px; }
h2 { font-size: clamp(26px, 3vw, 38px); line-height: 1.18; margin: 0 0 12px; }
h3 { margin: 0 0 10px; font-size: 21px; }
h4 { margin: 0 0 8px; font-size: 18px; }
h5, h6 { margin: 0 0 8px; font-size: 16px; }
.lead { font-size: 18px; color: #475569; margin: 0 0 22px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 24px 0; }
.domain-pill { display: inline-flex; padding: 10px 14px; border-radius: 14px; background: #fff; border: 1px solid var(--line); color: var(--muted); }
.hero-media {
    border-radius: 34px;
    background: #fff;
    padding: 18px;
    box-shadow: var(--shadow);
    border: 1px solid var(--line);
}
.hero-media img { border-radius: 24px; width: 100%; }
.image-description { font-size: 13px; color: var(--muted); margin: 10px 4px 0; }
.section {
    max-width: 1180px;
    margin: 0 auto;
    padding: 56px 20px;
}
.section-head { max-width: 760px; margin-bottom: 24px; }
.section-head p { color: var(--muted); margin: 0; }
.grid { display: grid; gap: 18px; }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 22px;
    box-shadow: 0 10px 28px rgba(31, 41, 55, .06);
}
.feature-icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: var(--soft);
    color: var(--brand-dark);
    font-weight: 900;
    margin-bottom: 16px;
}
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag { padding: 4px 10px; border-radius: 999px; background: #f1f5f9; color: #475569; font-size: 13px; font-weight: 700; }
.metric { color: var(--brand-dark); font-weight: 900; margin-top: 12px; }
.video-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.video-card {
    position: relative;
    overflow: hidden;
    border-radius: 26px;
    background: #111827;
    color: #fff;
    min-height: 360px;
    box-shadow: var(--shadow);
}
.video-card video, .video-card img { width: 100%; height: 210px; object-fit: cover; opacity: .88; }
.play-button {
    position: absolute;
    top: 84px;
    left: 50%;
    transform: translateX(-50%) scale(.86);
    opacity: 0;
    width: 68px;
    height: 68px;
    border-radius: 999px;
    border: 2px solid rgba(255,255,255,.8);
    background: rgba(215, 91, 36, .92);
    display: grid;
    place-items: center;
    transition: .2s ease;
}
.play-button::after {
    content: '';
    border-left: 18px solid #fff;
    border-top: 12px solid transparent;
    border-bottom: 12px solid transparent;
    margin-left: 4px;
}
.video-card:hover .play-button, .video-card:focus-within .play-button { opacity: 1; transform: translateX(-50%) scale(1); }
.video-body { padding: 18px; }
.video-stats { display: flex; flex-wrap: wrap; gap: 10px; color: #fde68a; font-weight: 800; font-size: 14px; }
.steps { counter-reset: steps; display: grid; gap: 16px; }
.step { display: grid; grid-template-columns: 70px 1fr; gap: 14px; align-items: start; }
.step-number { width: 58px; height: 58px; border-radius: 20px; background: var(--brand); color: #fff; display: grid; place-items: center; font-weight: 900; }
.timeline { border-left: 3px solid var(--line); padding-left: 20px; display: grid; gap: 18px; }
.timeline-item { position: relative; }
.timeline-item::before { content: ''; position: absolute; left: -30px; top: 7px; width: 16px; height: 16px; border-radius: 50%; background: var(--brand); }
.faq-list details { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 16px 18px; margin-bottom: 12px; }
.faq-list summary { cursor: pointer; font-weight: 900; color: var(--brand-dark); }
.quote { font-size: 15px; color: #475569; }
.score { font-weight: 900; color: var(--brand-dark); }
.contact-panel {
    background: linear-gradient(135deg, #1f2937, #7c2d12);
    color: #fff;
    border-radius: 30px;
    padding: 34px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}
.contact-panel p { color: #ffedd5; }
.breadcrumb { max-width: 1180px; margin: 24px auto 0; padding: 0 20px; color: var(--muted); font-size: 14px; }
.page-hero { max-width: 1180px; margin: 0 auto; padding: 46px 20px 24px; }
.site-footer { background: #111827; color: #f8fafc; margin-top: 50px; }
.footer-grid { max-width: 1180px; margin: 0 auto; padding: 42px 20px; display: grid; grid-template-columns: 1.2fr .8fr 1fr; gap: 24px; }
.footer-grid a { display: block; color: #fed7aa; margin: 7px 0; }
.footer-grid p { color: #cbd5e1; margin: 8px 0; }
.footer-grid h2 { font-size: 18px; color: #fff; }
.copyright { border-top: 1px solid rgba(255,255,255,.12); max-width: 1180px; margin: 0 auto; padding: 16px 20px 24px; color: #cbd5e1; }
.module-json-block { display: none; }
@media (max-width: 920px) {
    .header-inner { align-items: flex-start; flex-direction: column; }
    .main-nav { justify-content: flex-start; }
    .hero, .contact-panel, .footer-grid { grid-template-columns: 1fr; }
    .grid-4, .grid-3, .grid-2, .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .search-form { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
    .hero { padding-top: 36px; }
    .grid-4, .grid-3, .grid-2, .video-grid { grid-template-columns: 1fr; }
    .step { grid-template-columns: 1fr; }
    .video-card { min-height: auto; }
    .main-nav a { font-size: 13px; }
}