.detail-page { background: #f6f9fd; color: var(--color-heading); font-family: 'Be Vietnam Pro', sans-serif; }
.detail-topbar { background: #0a4e9b; color: #fff; font-size: 12px; }
.detail-topbar .container { min-height: 36px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.detail-topbar a { color: #fff; font-weight: 700; }
.detail-header { position: sticky; top: 0; z-index: 30; background: rgba(255,255,255,.96); border-bottom: 1px solid #e5edf8; backdrop-filter: blur(12px); }
.detail-header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.detail-brand { display: inline-flex; align-items: center; gap: 10px; color: #123f74; font-size: 14px; font-weight: 800; line-height: 1.2; }
.detail-brand small { display: block; color: #0c70cc; font-size: 11px; margin-top: 3px; }
.brand-mark { width: 42px; height: 42px; border-radius: 14px; display: grid; place-items: center; background: linear-gradient(145deg,#0b69c7,#0a4e9b); color:#fff; font-size: 18px; }
.detail-header nav { display: flex; gap: 24px; }
.detail-header nav a { color: #334155; font-size: 13px; font-weight: 650; }
.detail-main { min-height: 65vh; }
.detail-hero { padding: 64px 0 34px; }
.detail-breadcrumb { color: #66809f; font-size: 13px; margin-bottom: 20px; }
.detail-breadcrumb a { color: #0d68c2; }
.detail-category { display: inline-flex; padding: 7px 12px; border-radius: 999px; background: #e8f2ff; color: #0d68c2; font-size: 11px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.detail-hero h1 { max-width: 900px; margin: 18px 0; font-size: clamp(32px,5vw,54px); line-height: 1.15; }
.detail-lead { max-width: 820px; color: #526780; font-size: 18px; line-height: 1.75; }
.detail-meta { display: flex; flex-wrap: wrap; gap: 14px 24px; margin-top: 22px; color: #71839a; font-size: 13px; }
.detail-cover { width: 100%; max-height: 560px; object-fit: cover; border-radius: 26px; box-shadow: 0 20px 50px rgba(18,63,116,.14); }
.detail-layout { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 40px; padding: 42px 0 80px; }
.detail-article { background:#fff; border:1px solid #e4edf7; border-radius:24px; padding: clamp(24px,5vw,52px); box-shadow:0 14px 40px rgba(18,63,116,.06); }
.detail-article h2 { margin: 34px 0 14px; color:#123f74; font-size: 25px; }
.detail-article h3 { margin: 26px 0 10px; font-size: 19px; }
.detail-article p, .detail-article li { color:#42556d; font-size:16px; line-height:1.9; }
.detail-article p { margin-bottom:16px; }
.detail-article figure { margin:28px 0; }
.detail-article figure img { width:100%; max-height:560px; display:block; object-fit:cover; border-radius:16px; }
.detail-article figcaption { margin-top:9px; color:#74849a; font-size:13px; line-height:1.6; text-align:center; font-style:italic; }
.detail-article ul, .detail-article ol { padding-left:22px; margin: 12px 0 22px; }
.detail-note { margin:26px 0; padding:20px 22px; border-left:4px solid #0d68c2; border-radius:0 14px 14px 0; background:#eff6ff; color:#294867; }
.detail-steps { display:grid; gap:12px; margin:18px 0 26px; }
.detail-step { display:flex; align-items:flex-start; gap:14px; padding:16px; border:1px solid #e4edf7; border-radius:14px; }
.detail-step strong:first-child { flex:0 0 40px; width:40px; height:40px; display:grid; place-items:center; color:#fff; background:#0d68c2; border-radius:12px; font-size:13px; line-height:1; }
.detail-step > div { flex:1; min-width:0; }
.detail-step > div > strong { display:block; font-size:15px; font-weight:700; color:#183f69; margin-bottom:4px; }
.detail-step > div > p { margin:0; font-size:13px; color:#60748c; line-height:1.6; }
.detail-sidebar { display:grid; align-content:start; gap:18px; }
.detail-side-card { background:#fff; border:1px solid #e4edf7; border-radius:20px; padding:24px; }
.detail-side-card h3 { margin-bottom:12px; font-size:18px; }
.detail-side-card p { color:#60748c; font-size:14px; line-height:1.7; }
.detail-side-card .btn { width:100%; margin-top:16px; text-align:center; }
.detail-back { display:inline-flex; align-items:center; gap:8px; margin-top:28px; color:#0d68c2; font-weight:700; }
.detail-service-guide{margin-top:34px}.detail-guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.detail-guide-grid>div{padding:18px;border:1px solid #e1ebf5;border-radius:16px;background:#f8fbff}.detail-guide-grid i{display:block;margin-bottom:12px;color:#0d68c2;font-size:21px}.detail-guide-grid strong{display:block;color:#183f69;font-size:13px}.detail-guide-grid p{margin:7px 0 0;font-size:12px;line-height:1.65}.detail-service-guide details{margin-top:10px;border:1px solid #e1ebf5;border-radius:14px;background:#fff}.detail-service-guide summary{padding:16px 18px;color:#183f69;font-weight:750;cursor:pointer}.detail-service-guide details p{padding:0 18px 16px;font-size:14px}
.detail-footer { background:#092f5b; color:#fff; padding:38px 0; }
.detail-footer-inner { display:flex; justify-content:space-between; gap:28px; }
.detail-footer p { color:#c6d7e9; margin-top:6px; font-size:13px; }
.detail-footer a { color:#fff; font-weight:700; }
.detail-copyright { margin-top:28px; padding-top:22px; border-top:1px solid rgba(255,255,255,.14); color:#b9cce0; font-size:12px; text-align:center; }
.detail-copyright span { white-space:nowrap; }
.detail-copyright a { text-decoration:underline; text-underline-offset:3px; }
.detail-not-found { max-width:720px; margin:80px auto; padding:48px; text-align:center; background:#fff; border-radius:24px; }
@media(max-width:900px){.detail-header nav{display:none}.detail-layout{grid-template-columns:1fr}.detail-sidebar{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.detail-topbar .container{justify-content:center}.detail-topbar span{display:none}.detail-book{display:none}.detail-header-inner{min-height:68px}.detail-hero{padding-top:42px}.detail-layout{padding-top:24px}.detail-sidebar{grid-template-columns:1fr}.detail-footer-inner{display:grid}.detail-cover{border-radius:16px}.detail-guide-grid{grid-template-columns:1fr}}