:root{
  --bg:#f7f7f3;
  --card:#ffffff;
  --ink:#1d2030;
  --muted:#697184;
  --line:#e8e5dd;
  --brand:#22253a;
  --accent:#ff7c5b;
  --soft:#fff0e9;
  --green:#dff5e8;
  --shadow:0 18px 50px rgba(31,35,54,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;background:linear-gradient(180deg,#fff 0%,var(--bg) 40%,#fff 100%);color:var(--ink);line-height:1.75}
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,.92);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.topbar{max-width:1180px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 20px 12px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.03em}
.brand-mark{width:42px;height:42px;border-radius:14px;background:var(--brand);color:white;display:grid;place-items:center;box-shadow:var(--shadow)}
.brand-text{font-size:1.22rem}
.domain-pill{font-size:.92rem;color:var(--muted);background:#f5f5f1;border:1px solid var(--line);border-radius:999px;padding:8px 14px}
.main-nav{max-width:1180px;margin:0 auto;display:flex;gap:8px;overflow-x:auto;padding:0 20px 12px}
.main-nav a{white-space:nowrap;border:1px solid var(--line);padding:8px 12px;border-radius:999px;color:#35394d;background:#fff;transition:.2s}
.main-nav a:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.fake-search{max-width:1180px;margin:0 auto 14px;padding:0 20px;display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center}
.fake-search input{width:100%;border:1px solid var(--line);border-radius:18px;padding:13px 16px;font-size:1rem;background:#fff}
.fake-search button,.btn{border:0;border-radius:18px;padding:13px 18px;background:var(--brand);color:#fff;font-weight:800;cursor:pointer;box-shadow:0 10px 26px rgba(34,37,58,.16)}
.search-note{grid-column:1/-1;margin:0;color:var(--muted);font-size:.9rem;min-height:1.4em}
.breadcrumb{max-width:1180px;margin:0 auto 14px;padding:0 20px;color:var(--muted);font-size:.92rem;display:flex;gap:8px;flex-wrap:wrap}
main{max-width:1180px;margin:auto;padding:28px 20px 60px}
.hero{display:grid;grid-template-columns:1.02fr .98fr;gap:32px;align-items:center;padding:42px 0 56px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:var(--soft);border:1px solid #ffd8ca;color:#a7462d;border-radius:999px;padding:6px 12px;font-weight:800;font-size:.9rem}
h1,h2,h3{line-height:1.18;margin:0 0 14px;color:var(--ink)}
h1{font-size:clamp(2.2rem,5vw,4.5rem);letter-spacing:-.06em}
h2{font-size:clamp(1.55rem,3vw,2.5rem);letter-spacing:-.035em}
h3{font-size:1.15rem}
p{margin:0 0 14px}.lead{font-size:1.18rem;color:#4c5367;max-width:720px}.muted{color:var(--muted)}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.btn.secondary{background:#fff;color:var(--brand);border:1px solid var(--line)}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}.metric{background:#fff;border:1px solid var(--line);border-radius:22px;padding:16px;box-shadow:var(--shadow)}.metric strong{font-size:1.35rem;display:block}
.hero-visual{position:relative}.hero-visual figure,.image-card{margin:0;background:#fff;border:1px solid var(--line);border-radius:32px;padding:10px;box-shadow:var(--shadow);overflow:hidden}.hero-visual img,.image-card img{border-radius:24px;aspect-ratio:16/10;object-fit:cover}.hero-visual figcaption,.image-card figcaption{font-size:.86rem;color:var(--muted);padding:10px 6px 0}
.section{padding:54px 0;border-top:1px solid var(--line)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:24px}.section-head p{max-width:620px;color:var(--muted)}
.grid{display:grid;gap:18px}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.two{grid-template-columns:repeat(2,1fr)}.grid.four{grid-template-columns:repeat(4,1fr)}
.card{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:26px;padding:22px;box-shadow:var(--shadow)}.card.highlight{background:linear-gradient(135deg,#fff,var(--soft))}.card small{color:var(--muted);font-weight:800;letter-spacing:.04em}
.video-card{padding:0;overflow:hidden}.video-frame{position:relative;aspect-ratio:16/10;background:#f2f2ed;overflow:hidden;border-radius:26px 26px 0 0}.video-frame video{width:100%;height:100%;object-fit:cover;background:#f5f1ea}.video-frame img{width:100%;height:100%;object-fit:cover}.play-button{position:absolute;inset:auto auto 18px 18px;width:58px;height:58px;border-radius:50%;border:0;background:rgba(29,32,48,.86);color:#fff;font-size:1.25rem;display:grid;place-items:center;opacity:0;transform:scale(.86);transition:.22s;cursor:pointer}.video-card:hover .play-button,.video-card.is-preview .play-button{opacity:1;transform:scale(1)}.video-body{padding:20px}.video-tags{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.tag{background:#f1f1ec;border:1px solid var(--line);border-radius:999px;padding:4px 9px;font-size:.82rem;color:#4e5567}.video-stats{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:.9rem;border-top:1px dashed var(--line);padding-top:13px}
.product-card img{border-radius:20px;aspect-ratio:16/10;object-fit:cover;margin-bottom:16px}.stars{color:#d96d25;letter-spacing:.06em}.quote{font-size:1.02rem}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.faq-item summary{cursor:pointer;font-weight:900}.faq-item p{margin-top:10px;color:var(--muted)}
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:28px;align-items:start}.timeline{display:grid;gap:14px}.timeline-item{display:grid;grid-template-columns:110px 1fr;gap:16px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px}.timeline-item time{font-weight:900;color:#a7462d}
.contact-panel{background:linear-gradient(135deg,#fff,var(--green));border:1px solid var(--line);border-radius:30px;padding:28px;box-shadow:var(--shadow)}.contact-form{display:grid;gap:12px}.contact-form input,.contact-form textarea{border:1px solid var(--line);border-radius:16px;padding:12px;font:inherit}.contact-form textarea{min-height:140px}.notice{background:#fff7df;border:1px solid #f5dc91;border-radius:18px;padding:14px;color:#725418}
.site-footer{background:#171a29;color:#fff;padding:46px 20px 20px}.footer-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}.site-footer p,.site-footer a{color:#d7d9e4}.site-footer h2{font-size:1.05rem;color:#fff}.footer-logo .brand-mark{background:#fff;color:#171a29}.footer-links{padding:0;margin:0;list-style:none}.footer-links li{margin-bottom:8px}.copyright{max-width:1180px;margin:30px auto 0;border-top:1px solid rgba(255,255,255,.14);padding-top:18px;font-size:.9rem}.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}
.table-wrap{overflow-x:auto}.seo-table{width:100%;border-collapse:collapse;background:#fff;border-radius:20px;overflow:hidden}.seo-table th,.seo-table td{border-bottom:1px solid var(--line);padding:13px;text-align:left}.seo-table th{background:#f6f5ef}.share-row{display:flex;gap:10px;flex-wrap:wrap}.share-row button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:10px 14px;cursor:pointer;font-weight:800}.json-note{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88rem;background:#202336;color:#f5f5f8;border-radius:18px;padding:16px;overflow:auto}
@media(max-width:900px){.hero,.split,.footer-grid{grid-template-columns:1fr}.grid.three,.grid.two,.grid.four{grid-template-columns:1fr 1fr}.section-head{display:block}.metrics{grid-template-columns:1fr 1fr}.fake-search{grid-template-columns:1fr}.fake-search button{width:100%}}
@media(max-width:620px){.topbar{align-items:flex-start;flex-direction:column}.grid.three,.grid.two,.grid.four,.metrics{grid-template-columns:1fr}.timeline-item{grid-template-columns:1fr}.hero{padding-top:24px}main{padding-left:16px;padding-right:16px}.section{padding:40px 0}.domain-pill{width:100%}}