:root{
  --v-bg:#100a08;--v-surface:#1a100d;--v-card:#221510;--v-line:rgba(201,164,74,.18);
  --v-ink:#f5e8d0;--v-muted:rgba(245,232,208,.55);
  --v-gold:#c9a44a;--v-gold2:#e8c97a;--v-crimson:#8b1a1a;
  --v-grad:linear-gradient(135deg,#c9a44a,#e8c97a);
  --v-glow:0 0 20px rgba(201,164,74,.3),0 0 40px rgba(232,201,122,.15);
  --v-maxw:1160px;
  --v-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --v-serif:Georgia,"Noto Serif SC","STSong",serif;
  --v-mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --v-out:cubic-bezier(.23,1,.32,1);
}
*{box-sizing:border-box}
body.skin-velvet{margin:0;background:var(--v-bg);color:var(--v-ink);font-family:var(--v-sans);font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
body.skin-velvet img{max-width:100%;height:auto;display:block}
body.skin-velvet a{color:inherit;text-decoration:none}
body.skin-velvet ul,body.skin-velvet ol{padding-left:1.2em;margin:0}
body.skin-velvet li{margin:.35em 0}
body.skin-velvet p{margin:0 0 1em}
body.skin-velvet h1,body.skin-velvet h2,body.skin-velvet h3{margin:0 0 .5em;font-weight:800;line-height:1.12;letter-spacing:-.02em}
body.skin-velvet h1{font-size:clamp(2.1rem,5vw,3.6rem)}
body.skin-velvet h2{font-size:clamp(1.35rem,2.8vw,2rem)}
body.skin-velvet h3{font-size:1.06rem}
body.skin-velvet .container{max-width:var(--v-maxw);margin:0 auto;padding:0 28px}
body.skin-velvet .v-eyebrow,.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.75rem;font-weight:700;letter-spacing:.15em;text-transform:uppercase;background:var(--v-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:16px}
body.skin-velvet .v-lead,.lead{font-size:1.08rem;color:var(--v-muted);max-width:56ch}
body.skin-velvet .page-meta{font-family:var(--v-mono);font-size:.77rem;color:var(--v-muted);margin:12px 0 0}

/* 按钮 */
body.skin-velvet .v-btn,.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 30px;background:var(--v-grad);color:#100a08;font-weight:800;font-size:.94rem;border-radius:4px;border:none;box-shadow:var(--v-glow);transition:transform 180ms var(--v-out),box-shadow 180ms var(--v-out)}
body.skin-velvet .v-btn:hover,.btn:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(201,164,74,.45),0 0 56px rgba(232,201,122,.22)}
body.skin-velvet .v-btn:active,.btn:active{transform:scale(.97)}
body.skin-velvet .v-btn--ghost,.btn.ghost{background:transparent;border:1px solid rgba(201,164,74,.5);color:var(--v-gold);box-shadow:none}
body.skin-velvet .v-btn--ghost:hover,.btn.ghost:hover{border-color:var(--v-gold);box-shadow:0 0 14px rgba(201,164,74,.28)}

/* 顶导航：深暗酒红，顶部斜线金色边框 */
body.skin-velvet .v-nav{position:sticky;top:0;z-index:50;background:rgba(16,10,8,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--v-line)}
body.skin-velvet .v-nav::after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:1px;background:var(--v-grad);opacity:.35}
body.skin-velvet .v-nav-inner{display:flex;align-items:center;gap:32px;height:70px}
body.skin-velvet .v-brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.06rem;flex-shrink:0;color:var(--v-ink)}
body.skin-velvet .v-diamond{width:10px;height:10px;background:var(--v-grad);transform:rotate(45deg);flex-shrink:0;box-shadow:var(--v-glow)}
body.skin-velvet .v-menu-check{display:none}
body.skin-velvet .v-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;margin-left:auto}
body.skin-velvet .v-burger span{width:22px;height:2px;background:var(--v-ink);border-radius:1px}
body.skin-velvet .v-menu{flex:1}
body.skin-velvet .v-menu ul{list-style:none;display:flex;gap:4px;margin:0;padding:0}
body.skin-velvet .v-menu a{position:relative;display:inline-block;padding:8px 10px;font-size:.93rem;font-weight:500;color:var(--v-ink);transition:color 160ms var(--v-out)}
body.skin-velvet .v-menu a:hover,body.skin-velvet .v-menu a[aria-current]{color:var(--v-gold)}
body.skin-velvet .v-menu a[aria-current]::after{content:"";position:absolute;bottom:2px;left:10px;right:10px;height:2px;background:var(--v-grad);border-radius:1px}
body.skin-velvet .v-nav-cta{flex-shrink:0;padding:9px 22px;border-radius:4px;background:var(--v-grad);color:#100a08;font-size:.87rem;font-weight:800;box-shadow:var(--v-glow);transition:transform 160ms var(--v-out)}
body.skin-velvet .v-nav-cta:hover{transform:scale(1.04)}

/* Hero */
body.skin-velvet .v-hero{position:relative;min-height:520px;display:flex;align-items:center;overflow:hidden;padding:0}
body.skin-velvet .v-hero-bg{position:absolute;inset:0;z-index:0}
body.skin-velvet .v-hero-img{width:100%;height:100%;object-fit:cover;object-position:center top}
body.skin-velvet .v-hero-overlay{position:absolute;inset:0;background:linear-gradient(120deg,rgba(16,10,8,.94) 45%,rgba(16,10,8,.60))}
body.skin-velvet .v-hero-bg--gradient{background:radial-gradient(ellipse at 25% 65%,rgba(139,26,26,.28) 0%,transparent 55%),radial-gradient(ellipse at 75% 25%,rgba(201,164,74,.14) 0%,transparent 50%),var(--v-bg)}
body.skin-velvet .v-hero-inner{position:relative;z-index:1;max-width:var(--v-maxw);margin:0 auto;padding:clamp(80px,10vw,130px) 28px}
body.skin-velvet .v-hero-inner h1{margin-bottom:.35em;color:#fff}
body.skin-velvet .v-hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}

/* section 通用 */
body.skin-velvet .section{padding:clamp(52px,6vw,88px) 0;border-top:1px solid var(--v-line)}
body.skin-velvet .section:first-child{border-top:0}
body.skin-velvet .sec-head{max-width:62ch;margin-bottom:40px}
body.skin-velvet .sec-head.center{margin-inline:auto;text-align:center}
body.skin-velvet .sec-head h2{color:var(--v-ink)}
body.skin-velvet .sec-head .intro{color:var(--v-muted)}

/* 暗棕玻璃卡片 */
body.skin-velvet .grid{display:grid;gap:16px}
body.skin-velvet .grid.cols-2{grid-template-columns:repeat(2,1fr)}
body.skin-velvet .grid.cols-3{grid-template-columns:repeat(3,1fr)}
body.skin-velvet .grid.cols-4{grid-template-columns:repeat(4,1fr)}
body.skin-velvet .card{background:var(--v-card);border:1px solid var(--v-line);padding:28px;border-radius:6px;transition:transform 200ms var(--v-out),border-color 200ms var(--v-out),box-shadow 200ms var(--v-out)}
body.skin-velvet .card:hover{transform:translateY(-4px);border-color:rgba(201,164,74,.4);box-shadow:0 12px 36px rgba(201,164,74,.12)}
body.skin-velvet .card .ico{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:6px;background:linear-gradient(135deg,rgba(201,164,74,.22),rgba(232,201,122,.16));font-size:1.4rem;margin-bottom:14px}
body.skin-velvet .card h3{margin-bottom:.3em;color:var(--v-ink)}
body.skin-velvet .card p{color:var(--v-muted);margin:0;font-size:.95rem}
body.skin-velvet .card-img{margin:-28px -28px 18px;border-radius:6px 6px 0 0;overflow:hidden}
body.skin-velvet .card-img img{width:100%;aspect-ratio:16/10;object-fit:cover}
@media(max-width:820px){body.skin-velvet .grid.cols-3,body.skin-velvet .grid.cols-4{grid-template-columns:1fr 1fr}}
@media(max-width:560px){body.skin-velvet .grid{grid-template-columns:1fr!important}}
@media(prefers-reduced-motion:no-preference){
  body.js-reveal.fx-reveal .section .card{opacity:0;transform:translateY(16px)}
  body.js-reveal.fx-reveal .section.in .card{opacity:1;transform:none;transition:opacity 500ms var(--v-out),transform 500ms var(--v-out)}
  body.js-reveal.fx-reveal .section.in .card:nth-child(1){transition-delay:0ms}
  body.js-reveal.fx-reveal .section.in .card:nth-child(2){transition-delay:70ms}
  body.js-reveal.fx-reveal .section.in .card:nth-child(3){transition-delay:140ms}
  body.js-reveal.fx-reveal .section.in .card:nth-child(4){transition-delay:210ms}
}

/* stats */
body.skin-velvet .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
body.skin-velvet .stat{padding:24px 20px;background:var(--v-card);border:1px solid var(--v-line);border-radius:6px;text-align:center}
body.skin-velvet .stat .num{font-family:var(--v-mono);font-variant-numeric:tabular-nums;font-size:clamp(1.9rem,3.2vw,2.5rem);font-weight:700;background:var(--v-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
body.skin-velvet .stat .lbl{color:var(--v-muted);font-size:.87rem;margin-top:6px}
@media(max-width:560px){body.skin-velvet .stats{grid-template-columns:1fr 1fr}}

/* prose / split / steps / faq / gallery / cta */
body.skin-velvet .prose{max-width:72ch;color:var(--v-ink)}
body.skin-velvet .prose h2{margin-top:1.3em;color:var(--v-ink)}
body.skin-velvet .prose p{color:rgba(245,232,208,.85)}
body.skin-velvet .prose ul,body.skin-velvet .prose ol{color:var(--v-muted)}
body.skin-velvet .prose li{margin:.4em 0}
body.skin-velvet .prose strong{color:var(--v-gold)}
body.skin-velvet .prose table{width:100%;border-collapse:collapse;line-height:2}
body.skin-velvet .prose td{padding:4px 8px;border-bottom:1px solid var(--v-line)}
body.skin-velvet .split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,64px);align-items:center}
body.skin-velvet .split.reverse .split-media{order:2}
body.skin-velvet .split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:6px;box-shadow:0 8px 36px rgba(201,164,74,.18)}
body.skin-velvet .split-body h2{color:var(--v-ink)}
body.skin-velvet .split-body p{color:var(--v-muted)}
body.skin-velvet .split-body ul{padding-left:1.1em;color:var(--v-muted)}
body.skin-velvet .split-body li{margin:.5em 0}
@media(max-width:820px){body.skin-velvet .split{grid-template-columns:1fr}body.skin-velvet .split.reverse .split-media{order:0}}
body.skin-velvet .steps{display:grid;gap:14px;counter-reset:step}
body.skin-velvet .steps.cols{grid-template-columns:1fr 1fr}
body.skin-velvet .step{position:relative;background:var(--v-card);border:1px solid var(--v-line);padding:24px 26px 24px 66px;border-radius:6px}
body.skin-velvet .step::before{content:counter(step);counter-increment:step;position:absolute;left:18px;top:24px;width:30px;height:30px;border-radius:4px;background:var(--v-grad);color:#100a08;font-size:.82rem;font-weight:800;display:flex;align-items:center;justify-content:center}
body.skin-velvet .step h3{margin:0 0 .3em;color:var(--v-ink)}
body.skin-velvet .step p{margin:0;color:var(--v-muted);font-size:.95rem}
@media(max-width:720px){body.skin-velvet .steps.cols{grid-template-columns:1fr}}
body.skin-velvet .faq{max-width:760px;margin:0 auto}
body.skin-velvet .faq details{border-bottom:1px solid var(--v-line);padding:2px 4px}
body.skin-velvet .faq summary{cursor:pointer;font-weight:700;padding:18px 0;list-style:none;display:flex;justify-content:space-between;gap:16px;color:var(--v-ink)}
body.skin-velvet .faq summary::-webkit-details-marker{display:none}
body.skin-velvet .faq summary::after{content:"+";background:var(--v-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;flex-shrink:0;font-size:1.2rem;transition:transform 200ms var(--v-out)}
body.skin-velvet .faq details[open] summary::after{transform:rotate(45deg)}
body.skin-velvet .faq details p{color:var(--v-muted);padding-bottom:18px;margin:0}
body.skin-velvet .gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
body.skin-velvet .gallery figure{margin:0;position:relative;overflow:hidden;border-radius:6px;border:1px solid var(--v-line)}
body.skin-velvet .gallery img{width:100%;aspect-ratio:1/1;object-fit:cover;transition:transform 320ms var(--v-out)}
body.skin-velvet .gallery figure:hover img{transform:scale(1.06)}
body.skin-velvet .gallery figcaption{position:absolute;left:0;bottom:0;right:0;padding:12px 14px;font-size:.8rem;color:#fff;background:linear-gradient(0deg,rgba(16,10,8,.88),transparent)}
@media(max-width:820px){body.skin-velvet .gallery{grid-template-columns:1fr 1fr}}
@media(max-width:520px){body.skin-velvet .gallery{grid-template-columns:1fr}}
body.skin-velvet .cta-band{background:linear-gradient(135deg,rgba(139,26,26,.22) 0%,rgba(201,164,74,.14) 100%);border:1px solid rgba(201,164,74,.28);border-radius:8px;padding:clamp(36px,5vw,64px);text-align:center}
body.skin-velvet .cta-band h2{color:var(--v-ink);margin-bottom:.3em}
body.skin-velvet .cta-band .lead{margin:0 auto 28px;color:var(--v-muted)}
body.skin-velvet .cta-band .v-btn{margin-inline:auto}

/* footer */
body.skin-velvet .v-footer{background:var(--v-surface);border-top:1px solid var(--v-line);padding:60px 0 28px}
body.skin-velvet .v-foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px}
body.skin-velvet .v-foot-brand p{color:var(--v-muted);max-width:40ch;margin-top:10px}
body.skin-velvet .v-foot-links{display:flex;flex-direction:column;gap:10px}
body.skin-velvet .v-foot-links a{color:var(--v-muted);transition:color 160ms var(--v-out)}
body.skin-velvet .v-foot-links a:hover{color:var(--v-gold)}
body.skin-velvet .v-foot-contact{display:flex;flex-direction:column;gap:8px;color:var(--v-muted);font-family:var(--v-mono);font-size:.9rem}
body.skin-velvet .v-foot-bottom{margin-top:34px;padding-top:20px;border-top:1px solid var(--v-line);display:flex;justify-content:space-between;color:rgba(245,232,208,.3);font-family:var(--v-mono);font-size:.82rem}
@media(max-width:720px){body.skin-velvet .v-foot-grid{grid-template-columns:1fr}}

/* 移动端导航 */
@media(max-width:900px){
  body.skin-velvet .v-nav-inner{height:64px}
  body.skin-velvet .v-burger{display:flex}
  body.skin-velvet .v-menu{position:absolute;top:64px;left:0;right:0;background:rgba(16,10,8,.97);border-bottom:1px solid var(--v-line);max-height:0;overflow:hidden;transition:max-height 240ms var(--v-out)}
  body.skin-velvet .v-menu-check:checked ~ .v-menu{max-height:70vh}
  body.skin-velvet .v-menu ul{flex-direction:column;padding:8px 28px 20px;gap:2px}
  body.skin-velvet .v-nav-cta{display:none}
  body.skin-velvet .v-hero-inner{padding:80px 28px}
}


/* 滚动渐显：仅在 JS 就绪(js-reveal) + 允许动效时隐藏，无 JS 或 reduce-motion 时正常显示，防止内容看不见 */
@media (prefers-reduced-motion:no-preference){
  body.js-reveal.fx-reveal .section{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.6,.2,1),transform .7s cubic-bezier(.2,.6,.2,1)}
  body.js-reveal.fx-reveal .section.in{opacity:1;transform:none}
}
/* 图片 lightbox */
body.fx-lightbox .gallery img{cursor:zoom-in}
.lb-overlay{position:fixed;inset:0;background:rgba(8,10,14,.92);display:none;align-items:center;justify-content:center;z-index:200;padding:24px;cursor:zoom-out}
.lb-overlay.open{display:flex}
.lb-overlay img{max-width:92vw;max-height:92vh;border-radius:8px;box-shadow:0 24px 70px rgba(0,0,0,.5)}