/* ========== Detail Pages Shared Styles ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:#1e293b;background:#f8fafc;line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{width:100%;max-width:1100px;margin:0 auto;padding:0 24px}

/* Page Header */
.page-header{background:linear-gradient(135deg,#0f172a,#1e3a5f);padding:60px 0 40px;text-align:center}
.page-header .back-link{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.5);font-size:.85rem;margin-bottom:16px;transition:color .25s}
.page-header .back-link:hover{color:#fff}
.page-header h1{font-size:2.2rem;font-weight:800;color:#fff;margin-bottom:8px}
.page-header p{font-size:1rem;color:#94a3b8;max-width:600px;margin:0 auto}

/* Section */
.section{padding:60px 0}
.section-light{background:#fff}

/* Cards */
.card-grid{display:grid;gap:28px}
.card-grid-2{grid-template-columns:1fr 1fr}
.card-grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:32px;transition:all .3s}
.card:hover{box-shadow:0 8px 28px rgba(0,0,0,.06)}
.card h3{font-size:1.15rem;font-weight:700;margin-bottom:10px;color:#0f172a}
.card p{font-size:.9rem;color:#475569;line-height:1.7;margin-bottom:8px}
.card .tag{display:inline-block;padding:3px 12px;border-radius:999px;font-size:.75rem;font-weight:600;margin-bottom:12px}
.card ul li{padding:4px 0 4px 18px;position:relative;font-size:.88rem;color:#475569}
.card ul li::before{content:'▸';position:absolute;left:0;color:#1a56db;font-weight:700}
.card-icon-box{width:56px;height:56px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;overflow:hidden}
.card-icon-box img{width:100%;height:100%;object-fit:contain;padding:10px}

/* Detail blocks */
.detail-block{margin-bottom:40px}
.detail-block:last-child{margin-bottom:0}
.detail-block h2{font-size:1.5rem;font-weight:700;color:#0f172a;margin-bottom:4px}
.detail-block .sub{font-size:.9rem;color:#64748b;margin-bottom:20px}
.detail-grid{display:grid;gap:20px}
.detail-grid-2{grid-template-columns:1fr 1fr}
.detail-grid-3{grid-template-columns:repeat(3,1fr)}

/* Highlight number */
.stat-highlight{font-size:2.5rem;font-weight:800;color:#1a56db;line-height:1}
.stat-label{font-size:.85rem;color:#64748b;margin-bottom:12px}

/* Spec list */
.spec-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.spec-list span{background:#f1f5f9;padding:4px 14px;border-radius:6px;font-size:.8rem;color:#475569}

/* Quote */
.quote-block{padding:20px 24px;border-radius:12px;border-left:4px solid #1a56db;background:#eff6ff;margin:20px 0;font-style:italic;font-size:.95rem;color:#1e40af}

/* Page Footer */
.page-footer{background:#0f172a;color:#94a3b8;padding:32px 0;text-align:center}
.page-footer .back-home{display:inline-flex;align-items:center;gap:8px;color:#60a5fa;font-weight:600;padding:12px 28px;border:1px solid rgba(96,165,250,.3);border-radius:8px;transition:all .25s;margin-bottom:16px}
.page-footer .back-home:hover{background:rgba(96,165,250,.1);border-color:#60a5fa}
.page-footer p{font-size:.8rem}

/* Fade animation */
.fade-up{opacity:0;transform:translateY(24px);transition:all .5s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* Responsive */
@media(max-width:768px){
  .page-header h1{font-size:1.6rem}
  .detail-grid-2,.detail-grid-3,.card-grid-2,.card-grid-3{grid-template-columns:1fr}
  .section{padding:40px 0}
  .card{padding:24px}
}