:root{
    --bg:#fbf7f0;
    --surface:#fffdf8;
    --ink:#1d1714;
    --muted:#706860;
    --line:rgba(29,23,20,.12);
    --accent:#b73535;
    --accent-strong:#8f2027;
    --soft:#f0e4d6;
    --shadow:0 24px 70px rgba(55,36,20,.09);
    --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at 16% 0%,#fff 0,#fbf7f0 32%,#f7efe5 100%);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.7;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto}
button,input,textarea{font:inherit}
.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}
.site-header{position:sticky;top:0;z-index:20;background:rgba(251,247,240,.86);backdrop-filter:blur(22px);border-bottom:1px solid var(--line)}
.nav-wrap{max-width:1180px;margin:0 auto;padding:18px 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand-logo{display:inline-flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.04em}
.brand-mark{width:38px;height:38px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),#f2b0a4);color:white;box-shadow:0 12px 30px rgba(183,53,53,.22)}
.brand-text{font-size:20px}
.main-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.main-nav a{padding:10px 13px;border-radius:999px;color:var(--muted);font-size:15px;transition:.25s ease}
.main-nav a:hover,.main-nav a:focus{background:white;color:var(--accent-strong);box-shadow:0 8px 24px rgba(55,36,20,.08)}
.search-band{max-width:1180px;margin:0 auto;padding:0 24px 18px;display:grid;grid-template-columns:minmax(260px,520px) 1fr;gap:16px;align-items:center}
.search-box{display:flex;gap:8px;background:white;border:1px solid var(--line);border-radius:999px;padding:6px;box-shadow:0 10px 30px rgba(55,36,20,.05)}
.search-box input{width:100%;border:0;outline:0;background:transparent;padding:10px 16px;color:var(--ink)}
.search-box button{border:0;border-radius:999px;background:var(--ink);color:white;padding:10px 18px;cursor:pointer;white-space:nowrap}
.search-note{margin:0;color:var(--muted);font-size:14px}
.section,.section-xl{max-width:1180px;margin:0 auto;padding:90px 24px}
.section-xl{min-height:72vh;display:grid;grid-template-columns:minmax(0,1.02fr) minmax(320px,.98fr);gap:70px;align-items:center}
.eyebrow{margin:0 0 14px;color:var(--accent-strong);font-size:13px;letter-spacing:.18em;text-transform:uppercase;font-weight:700}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(42px,7vw,86px);line-height:1.05;letter-spacing:-.06em;margin-bottom:24px}
h2{font-size:clamp(28px,4vw,52px);line-height:1.14;letter-spacing:-.045em;margin-bottom:18px}
h3{font-size:22px;line-height:1.25;margin-bottom:12px}
p{color:var(--muted)}
.hero-lead{font-size:20px;max-width:680px;color:#4e4540}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:34px 0 18px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;border-radius:999px;padding:0 22px;border:1px solid var(--line);transition:.25s ease;font-weight:700}
.btn.primary{background:var(--accent-strong);border-color:var(--accent-strong);color:white;box-shadow:0 16px 32px rgba(143,32,39,.2)}
.btn.ghost{background:rgba(255,255,255,.65);color:var(--ink)}
.btn:hover{transform:translateY(-2px)}
.domain-line{font-size:14px;color:#8a8077}
.hero-media{margin:0;position:relative;border-radius:36px;overflow:hidden;background:white;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.7)}
.hero-media img{aspect-ratio:3/2;object-fit:cover}
figcaption{font-size:12px;color:#897f74;padding:12px 16px;background:rgba(255,255,255,.78)}
.section-heading{max-width:760px;margin-bottom:36px}
.section-heading.narrow{max-width:680px;margin-left:auto;margin-right:auto;text-align:center}
.brand-intro{padding-top:40px}
.intro-panel{background:linear-gradient(135deg,rgba(255,255,255,.88),rgba(255,250,242,.72));border:1px solid var(--line);border-radius:var(--radius);padding:38px;display:grid;grid-template-columns:1.2fr .8fr;gap:28px;box-shadow:var(--shadow)}
.tag-cloud{list-style:none;padding:0;margin:0;display:flex;gap:10px;flex-wrap:wrap;align-content:start}
.tag-cloud li,.tag-row span{border:1px solid var(--line);background:rgba(255,255,255,.72);border-radius:999px;padding:8px 12px;color:#61564e;font-size:14px}
.tag-cloud.vertical{display:grid;grid-template-columns:1fr 1fr}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature-card,.case-strip article,.testimonial-grid article,.social-grid article,.rich-card,.side-card{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 14px 42px rgba(55,36,20,.06);transition:.25s ease}
.feature-card:hover,.video-card:hover,.testimonial-grid article:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feature-card span{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:16px;background:var(--soft);color:var(--accent-strong);font-weight:800;margin-bottom:18px}
.video-section{padding-top:64px}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.video-grid.compact{grid-template-columns:repeat(3,1fr)}
.video-card{overflow:hidden;background:white;border:1px solid var(--line);border-radius:30px;box-shadow:0 16px 44px rgba(55,36,20,.07);transition:.25s ease;outline:none}
.video-card figure{margin:0;position:relative;overflow:hidden;background:#f1e8dc}
.video-card img{aspect-ratio:3/2;object-fit:cover;transition:transform .5s ease,filter .4s ease}
.video-card:hover img,.video-card:focus img{transform:scale(1.04);filter:saturate(1.08) contrast(1.02)}
.play-button{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.86);width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.88);color:var(--accent-strong);box-shadow:0 18px 40px rgba(0,0,0,.16);opacity:0;transition:.25s ease;padding-left:4px}
.video-card:hover .play-button,.video-card:focus .play-button,.video-card.is-active .play-button{opacity:1;transform:translate(-50%,-50%) scale(1)}
.video-body{padding:22px}
.video-category{font-size:13px;color:var(--accent-strong);font-weight:800;margin-bottom:8px}
.video-stats{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0;color:#5c514b;font-size:13px}
.video-stats span{background:#faf4ec;border-radius:999px;padding:5px 9px}
.tag-row{display:flex;gap:8px;flex-wrap:wrap}
.metrics{padding-top:56px;padding-bottom:56px}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.metric-grid article{padding:28px;border-radius:26px;background:var(--ink);color:white;text-align:center}
.metric-grid strong{display:block;font-size:34px;line-height:1;margin-bottom:10px}
.metric-grid span{color:#e6ddd4}
.case-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.testimonial-grid h3{margin-bottom:0;font-size:18px}
.testimonial-grid span{color:var(--accent-strong);font-size:14px}
.faq-list{display:grid;gap:12px}
details{background:rgba(255,255,255,.76);border:1px solid var(--line);border-radius:22px;padding:20px 24px}
summary{cursor:pointer;font-weight:800;color:var(--ink)}
details p{margin:14px 0 0}
.contact{background:linear-gradient(180deg,rgba(255,255,255,0),rgba(255,255,255,.42));border-radius:40px}
.contact-form{max-width:760px;margin:0 auto;display:grid;gap:14px;background:white;border:1px solid var(--line);border-radius:32px;padding:28px;box-shadow:var(--shadow)}
.contact-form label{display:grid;gap:8px;color:#4a403a;font-weight:700}
.contact-form input,.contact-form textarea{border:1px solid var(--line);border-radius:18px;padding:14px 16px;background:#fffaf4;outline:none;color:var(--ink)}
.contact-form input:focus,.contact-form textarea:focus{border-color:rgba(143,32,39,.45);box-shadow:0 0 0 4px rgba(143,32,39,.08)}
.social-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.breadcrumb{max-width:1180px;margin:0 auto;padding:28px 24px 0;color:var(--muted);display:flex;gap:10px;font-size:14px}
.breadcrumb a{color:var(--accent-strong)}
.sub-hero{padding-top:64px;padding-bottom:42px;text-align:center;max-width:900px}
.sub-hero h1{font-size:clamp(38px,6vw,72px)}
.content-layout{display:grid;grid-template-columns:1fr 320px;gap:22px;padding-top:36px}
.rich-card p:last-child,.side-card p:last-child{margin-bottom:0}
.site-footer{margin-top:60px;background:#1c1714;color:white;padding:64px 24px 24px}
.site-footer p,.site-footer a,.site-footer li{color:#d8cec4}
.footer-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1.3fr .8fr 1fr;gap:34px}
.footer-grid h2{font-size:18px;letter-spacing:0;margin-bottom:14px}
.footer-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-logo .brand-mark{box-shadow:none}
.footer-bottom{max-width:1180px;margin:36px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:#cfc4bb}
@media (max-width:980px){
    .section-xl{grid-template-columns:1fr;min-height:auto;gap:34px;padding-top:64px}
    .feature-grid,.video-grid,.metric-grid,.case-strip,.testimonial-grid{grid-template-columns:repeat(2,1fr)}
    .social-grid{grid-template-columns:repeat(3,1fr)}
    .search-band{grid-template-columns:1fr}
    .intro-panel,.content-layout,.footer-grid{grid-template-columns:1fr}
}
@media (max-width:680px){
    .nav-wrap{align-items:flex-start;flex-direction:column}
    .main-nav{justify-content:flex-start}
    .section,.section-xl{padding:60px 18px}
    .feature-grid,.video-grid,.video-grid.compact,.metric-grid,.case-strip,.testimonial-grid,.social-grid{grid-template-columns:1fr}
    .search-box{border-radius:22px;align-items:stretch;flex-direction:column}
    .search-box button{width:100%}
    h1{font-size:42px}
    .intro-panel,.contact-form{padding:24px}
    .tag-cloud.vertical{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
    *{scroll-behavior:auto;transition:none!important;animation:none!important}
}