/* Trang phòng /phong/<slug> (13/11/2026). Dùng chung nút, màu, thanh đáy với trang-chu-moi.css */
.ph{padding:28px 0 72px}
.ph-bc{font-size:14px;color:#4A5850;margin-bottom:14px}.ph-bc a{color:#1E3B30}
.ph h1{font-size:clamp(30px,4vw,48px);font-weight:800;letter-spacing:-.02em;line-height:1.1}
.ph-sub{margin-top:10px!important;font-size:17px;color:#4A5850}
.ph h2{font-size:22px;font-weight:700;margin:0 0 12px}
.ph-two{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;margin-top:28px;align-items:start}
.ph-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.ph-item{display:block;border-radius:10px;overflow:hidden;background:#DCE4DF;aspect-ratio:1/1}
.ph-item img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .25s}
.ph-item:hover img{transform:scale(1.04)}
.ph-item:first-child{grid-column:span 2;grid-row:span 2}
.ph-info{background:#fff;border:1px solid #DCE2DE;border-radius:14px;padding:24px;position:sticky;top:20px}
.ph-ti{margin:0 0 22px;padding-left:20px}.ph-ti li{margin:4px 0}
.ph-price{width:100%;border-collapse:collapse;font-size:15px;margin:0}
.ph-price tr{border-top:1px solid #E4E9E6}.ph-price thead tr{border-top:0}
.ph-price th{text-align:left;font-weight:400;color:#4A5850;padding:9px 0}
.ph-price thead th{font-size:13px;text-align:right;padding:0 0 6px 8px}.ph-price thead th:first-child{text-align:left}
.ph-price td{text-align:right;font-weight:600;padding:9px 0 9px 8px;white-space:nowrap}
.ph-note{margin-top:10px!important;font-size:13px;color:#5A675F}
.ph-luutru{margin-top:12px!important;font-size:15px}
.ph-cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.ph-cta .tc-btn{flex:1 1 200px}
.ph-videos{margin-top:48px}
.ph-vgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.ph-vgrid video{width:100%;height:auto;aspect-ratio:9/16;object-fit:cover;background:#17241D;border-radius:12px;display:block}
.ph-end{margin-top:48px;border-top:1px solid #C9D2CC;padding-top:28px}
.ph-end h2{margin-top:32px}
.ph-other{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:0}
.ph-other a{display:inline-flex;min-height:44px;align-items:center;padding:8px 16px;border:1px solid #B9C4BD;border-radius:999px;text-decoration:none;color:#1E3B30;font-weight:600}
/* lightbox */
.lb{position:fixed;inset:0;z-index:2000;background:rgba(10,18,14,.94);display:flex;align-items:center;justify-content:center;touch-action:pan-y}
.lb[hidden]{display:none}
.lb img{max-width:100vw;max-height:calc(100vh - 80px);object-fit:contain;user-select:none;-webkit-user-drag:none}
.lb button{position:absolute;background:rgba(255,255,255,.14);color:#fff;border:0;border-radius:999px;width:48px;height:48px;font-size:26px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}
.lb button:hover{background:rgba(255,255,255,.28)}
.lb button:focus-visible{outline:3px solid #E3A93B;outline-offset:2px}
.lb-close{top:14px;right:14px}.lb-prev{left:14px;top:50%;transform:translateY(-50%)}.lb-next{right:14px;top:50%;transform:translateY(-50%)}
.lb-count{position:absolute;bottom:18px;left:0;right:0;text-align:center;color:#DCE4DF;font-size:14px;font-family:'Be Vietnam Pro',system-ui,sans-serif}
html.lb-open,html.lb-open body{overflow:hidden}
@media (max-width:900px){.ph-two{grid-template-columns:1fr}.ph-info{position:static}}
@media (max-width:560px){.ph-gallery{grid-template-columns:1fr 1fr}.ph-item:first-child{grid-column:span 2;grid-row:span 1;aspect-ratio:4/3}.lb-prev,.lb-next{top:auto;bottom:8px;transform:none}.ph-vgrid{grid-template-columns:1fr 1fr}}