:root{--xanh:#0073b8;--xanh-dam:#005a90;--nen:#f4f6f9;--vien:#dfe5ec;--chu:#1a2430;--mo:#5b6a7a}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{color-scheme:light}
body{margin:0;background:var(--nen);color:var(--chu);font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif}
a{color:var(--xanh)}
button{font:inherit;cursor:pointer}
.dau{display:flex;align-items:center;gap:18px;padding:10px 16px;background:var(--xanh);border-bottom:1px solid var(--xanh-dam)}
.logo img{display:block;height:35px;width:auto}
.dan{font-size:13px;color:#fff;display:flex;gap:8px;flex-wrap:wrap}.dan a{color:#fff;text-decoration:none}.dan a:hover{color:#fff;text-decoration:underline}.dan b{color:#fff}
.than{max-width:1240px;margin:0 auto;padding:18px 16px 40px}
@media (min-width:901px){.than{max-width:none;padding:18px 24px 40px}} /* 18/09 anh Ba: máy tính cho .than rộng sát mép cho thoáng */
h1{margin:6px 0 4px;font-size:26px}
.mo{margin:0 0 14px;color:var(--mo);max-width:820px}
.chip-hang{min-height:151px;display:flex;flex-wrap:wrap;gap:12px 22px;padding:12px 14px;background:#fff;border:1px solid var(--vien);border-radius:12px;margin-bottom:12px}
.nhom{display:flex;flex-direction:column;gap:6px}
.truc{display:contents}
.nhan{font-size:11px;letter-spacing:.6px;text-transform:uppercase;color:var(--mo)}
.chips{display:flex;flex-wrap:wrap;gap:6px;min-height:34px}
.chip{padding:7px 12px;border:1px solid var(--vien);border-radius:8px;background:#fff;color:var(--chu);font-size:14px;line-height:1.2;transition:.15s}
.chip:hover{border-color:var(--xanh)}
.chip.dang,.chip[aria-pressed="true"]{background:var(--xanh);border-color:var(--xanh);color:#fff}
.chip:disabled{opacity:.55;cursor:not-allowed}
.chip.mau-den::before,.chip.mau-trang::before{content:"";display:inline-block;width:12px;height:12px;border-radius:50%;margin-right:6px;vertical-align:-1px;border:1px solid #999}
.chip.mau-den::before{background:#222}.chip.mau-trang::before{background:#fff}
.khung{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:14px;align-items:start}
.poster{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center 45%;background:#f3f5f8;z-index:1;pointer-events:none}
.canh{position:relative;background:linear-gradient(#e9eef4,#d7dee7);border:1px solid var(--vien);border-radius:12px;overflow:hidden;aspect-ratio:4/3;min-height:360px}
#ve{display:block;width:100%;height:100%;touch-action:none}
.goc-nut{position:absolute;top:10px;right:10px;display:flex;flex-direction:column;gap:6px}
.nut-tron{width:40px;height:40px;border:1px solid var(--vien);border-radius:10px;background:rgba(255,255,255,.92);font-size:18px;line-height:1;color:var(--chu)}
.nut-tron:hover,.nut-tron[aria-pressed="true"]{background:var(--xanh);color:#fff;border-color:var(--xanh)}
.kich{position:absolute;left:10px;top:10px;padding:6px 10px;background:rgba(255,255,255,.92);border-radius:8px;font-size:13px;color:var(--chu);border:1px solid var(--vien)}
.ghi-cua{position:absolute;left:10px;top:50px;padding:4px 9px;background:rgba(0,115,184,.9);color:#fff;border-radius:6px;font-size:12px}
.ghi-cua:empty{display:none}
.dang-tai{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(244,246,249,.85);color:var(--mo);font-size:14px}
.bang{background:#fff;border:1px solid var(--vien);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:14px;position:sticky;top:12px;max-height:calc(100vh - 24px);overflow:auto;box-sizing:border-box}
.bang-dau{display:flex;flex-direction:column;gap:2px;padding-bottom:10px;border-bottom:1px solid var(--vien)}
.bang-dau strong{font-size:17px}
.nho{font-size:12.5px;color:var(--mo);margin:4px 0 0}
.muc h2{margin:0 0 8px;font-size:13px;letter-spacing:.5px;text-transform:uppercase;color:var(--mo)}
.ds-pk{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:4px}
.ds-pk li{display:flex;align-items:center;gap:8px;padding:6px 8px;background:var(--nen);border-radius:8px;font-size:13px}
.ds-pk li span{flex:1}
.ds-pk li b{font-size:11px;color:var(--mo);font-weight:600;min-width:30px}
.ds-pk li button{border:0;background:transparent;color:#b02a37;font-size:16px;padding:0 4px}
.sp{font-size:14px;min-height:265px}
.sp a{font-weight:600}
.sp img{display:block;width:100%;max-width:220px;height:auto;border-radius:8px;border:1px solid var(--vien);margin:6px 0}
.sp .ma{font-size:12px;color:var(--mo)}
.hanh-dong{display:flex;flex-wrap:wrap;gap:8px;padding-top:10px;border-top:1px solid var(--vien)}
.nut{flex:1 1 calc(50% - 8px);padding:10px 12px;border:1px solid var(--xanh);border-radius:8px;background:#fff;color:var(--xanh);font-weight:600;font-size:14px;text-align:center;text-decoration:none;line-height:1.2}
.nut:hover{background:#eaf4fb}
.nut.chinh{flex-basis:100%;background:var(--xanh);color:#fff}.nut.chinh:hover{background:var(--xanh-dam)}
.nut.phu{border-color:var(--vien);color:var(--mo)}
.ds-luu{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.ds-luu:empty{display:none}
.ds-luu li{display:flex;gap:8px;align-items:center;font-size:13px;padding:6px 8px;background:var(--nen);border-radius:8px}
.ds-luu li a{flex:1;text-decoration:none;color:var(--chu)}
.ds-luu li button{border:0;background:transparent;color:#b02a37;font-size:16px}
.bao{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);padding:9px 16px;border-radius:999px;background:var(--chu);color:#fff;font-size:13px;z-index:9;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.in-ra{display:none}
/* Kèm theo Tủ + Thông số kỹ thuật: cùng một kiểu bảng nhãn/giá trị, cột nhãn 34% */
.kem{list-style:none;margin:0;padding:0;border:1px solid var(--vien);border-radius:8px;overflow:hidden}
.kem li{display:grid;grid-template-columns:34% 1fr;gap:0;font-size:12.5px;line-height:1.45;border-bottom:1px solid var(--vien)}
.kem li:last-child{border-bottom:0}
.kem li b{padding:6px 8px;background:var(--nen);color:var(--chu);font-weight:600}
.kem li span{padding:6px 8px}
.bang-ts table{border-collapse:collapse;width:100%;table-layout:fixed;font-size:12.5px;line-height:1.45;border:1px solid var(--vien);border-radius:8px}
.bang-ts th,.bang-ts td{padding:6px 8px;text-align:left;vertical-align:top;border-bottom:1px solid var(--vien);word-wrap:break-word}
.bang-ts tr:last-child th,.bang-ts tr:last-child td{border-bottom:0}
.bang-ts th{width:34%;background:var(--nen);font-weight:600;color:var(--chu)}
.pk-anh{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:6px}
.pk-anh button{padding:0;border:1px solid var(--vien);border-radius:8px;overflow:hidden;background:#fff;cursor:pointer;text-align:left;font-size:11px;line-height:1.25;color:var(--chu)}
.pk-anh button img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}
.pk-anh button span{display:block;padding:4px 5px}
.pk-anh button:hover{border-color:var(--xanh)}
.anh-that{margin-top:16px;background:#fff;border:1px solid var(--vien);border-radius:12px;padding:14px}
.anh-that h2{margin:0 0 2px;font-size:17px}.anh-that h2 span{color:var(--xanh)}
.dai-anh{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px;margin-top:10px}
.dai-anh button{padding:0;border:1px solid var(--vien);border-radius:8px;overflow:hidden;background:#fff;cursor:pointer;aspect-ratio:4/3}
.dai-anh button img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .2s}
.dai-anh button:hover img,.dai-anh button:focus-visible img{transform:scale(1.04)}
.hop-anh{position:fixed;inset:0;background:rgba(0,0,0,.88);z-index:20;display:flex;align-items:center;justify-content:center}
.hop-anh img{max-width:92vw;max-height:88vh;border-radius:6px;box-shadow:0 10px 40px rgba(0,0,0,.6)}
.hop-anh button{position:absolute;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:34px;line-height:1;width:52px;height:52px;border-radius:50%;cursor:pointer}
.hop-anh button:hover{background:var(--xanh)}
.ha-dong{top:14px;right:14px;font-size:30px!important}.ha-truoc{left:14px;top:50%;transform:translateY(-50%)}.ha-sau{right:14px;top:50%;transform:translateY(-50%)}
.ha-so{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);color:#fff;font-size:13px;background:rgba(0,0,0,.5);padding:4px 10px;border-radius:999px}
@media (max-width:640px){.dai-anh{grid-template-columns:repeat(3,1fr);gap:6px}.hop-anh button{width:42px;height:42px;font-size:26px}}
/* ===== Bố cục theo cỡ màn hình (18/09/2026) ===== */
/* Điện thoại ≤640: thứ tự tiêu đề → hình 3D → khối chọn (mỗi hàng cuộn ngang) → bảng thông tin */
@media (max-width:640px){
  .than{display:flex;flex-direction:column;padding:12px 12px 32px}
  h1{order:1;font-size:21px;margin:2px 0 4px}.mo{order:2;font-size:13.5px;margin:0 0 10px}
  .khung{display:contents}.canh{order:3;aspect-ratio:3/4;min-height:360px;margin-bottom:10px}
  .chip-hang{order:4;min-height:342px;padding:10px 12px;gap:8px 0;display:grid;grid-template-columns:minmax(0,1fr);margin-bottom:10px}
  .nhom{grid-column:1/-1;min-width:0;max-width:100%}
  .nhom{gap:4px}.nhan{font-size:10.5px}
  .chips{flex-wrap:nowrap;overflow-x:auto;max-width:100%;gap:6px;padding:2px 0 4px;scrollbar-width:none;-webkit-overflow-scrolling:touch}.chips::-webkit-scrollbar{display:none}
  .chip{font-size:13px;padding:7px 11px;white-space:nowrap;flex:0 0 auto}
  #muc-pk .chips,.muc .chips{flex-wrap:wrap}
  .bang{order:5;position:static;max-height:none;padding:12px}
  .in-ra{order:6}
  .goc-nut{flex-direction:row;top:auto;bottom:8px;right:8px;gap:5px}.goc-nut .nut-tron{width:36px;height:36px;font-size:16px}
  .kich{top:10px;font-size:12px;max-width:calc(100% - 20px)}.ghi-cua{top:46px}
  .sp{text-align:center;min-height:332px}.sp img{max-width:280px;margin:8px auto 10px}.sp a{display:block;font-size:16px}
  .hanh-dong .nut{font-size:13.5px;padding:10px 8px}
}
@media (min-width:481px) and (max-width:640px){.canh{aspect-ratio:1/1;min-height:0}}
/* Máy tính bảng dọc 641–900: một cột, khung 3D 4:3, bảng bên dưới chia 2 cột */
@media (min-width:641px) and (max-width:900px){
  .khung{grid-template-columns:1fr}.canh{aspect-ratio:4/3;min-height:0}
  .bang{position:static;max-height:none;display:grid;grid-template-columns:1fr 1fr;gap:14px 20px;align-items:start}
  .bang-dau,#muc-van-hanh,.hanh-dong,.ds-luu,.bang>p.nho{grid-column:1/-1}.chip-hang{min-height:220px}
  .goc-nut{flex-direction:column}
}
/* Laptop 901–1365: giữ 2 cột, bảng bên phải 340 */
@media (min-width:901px) and (max-width:1365px){.khung{grid-template-columns:minmax(0,1fr) 340px}}
/* Màn lớn ≥1600: rộng 1440, chữ lớn hơn, khung 3D 16:10, bảng 400 */
@media (min-width:1600px){
  html{font-size:16px}.than{max-width:none}h1{font-size:30px}.mo{font-size:16px;max-width:960px}
  .khung{grid-template-columns:minmax(0,1fr) 400px;gap:18px}.canh{aspect-ratio:16/10}
  .chip{font-size:15px;padding:8px 14px}.chip-hang{min-height:155px}.bang{padding:18px;gap:16px}.kem li,.bang-ts table{font-size:13.5px}
}
@media print{.anh-that,.hop-anh{display:none!important}}
@media print{@page{size:A4;margin:12mm}body{background:#fff;color:#000}.dau,.chip-hang,.canh .goc-nut,.canh .ghi-cua,.bang,.bao,.mo{display:none!important}.than{max-width:none;padding:0}h1{font-size:20px;margin:0 0 8px}.khung{display:block}.canh{aspect-ratio:auto;height:110mm;border:1px solid #ccc;background:#fff;border-radius:6px;overflow:hidden;page-break-inside:avoid}.kich{top:6px;left:6px}.in-ra{display:block;margin-top:10px}.in-ra h2{font-size:16px;margin:0 0 4px}.in-ghi{font-size:11px;color:#444;margin:0 0 8px}.in-link{margin-top:8px;word-break:break-all}.in-ra table{border-collapse:collapse;width:100%;table-layout:fixed;font-size:11.5px}.in-ra th,.in-ra td{border:1px solid #bbb;padding:5px 7px;text-align:left;vertical-align:top;word-wrap:break-word}.in-ra th{width:32%;background:#f2f4f7;font-weight:600}.in-ra tr{page-break-inside:avoid}}