:root{--nen:#fff;--vien:#e3e7dd;--chu:#23291f;--chu-nhat:#6b7464;--matcha:#6f9f4a;--matcha-dam:#547a37;--do:#c0392b}*{box-sizing:border-box}body{color:var(--chu);background:var(--nen);margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;font-size:15px}.widget{grid-template-columns:1fr 380px;gap:22px;max-width:1080px;margin:0 auto;padding:18px;display:grid}@media (width<=860px){.widget{grid-template-columns:1fr}}.khung-3d{aspect-ratio:1;background:linear-gradient(165deg,#f2f6ec 0%,#e4ebdd 100%);border-radius:14px;width:100%;min-height:300px;position:relative;overflow:hidden}@media (width<=860px){.khung-3d{aspect-ratio:4/3}}.man-cho{color:var(--chu-nhat);z-index:2;background:#f2f6ecd9;justify-content:center;align-items:center;gap:10px;font-size:14px;display:flex;position:absolute;inset:0}.quay{border:2px solid var(--matcha);border-top-color:#0000;border-radius:50%;width:16px;height:16px;animation:.8s linear infinite quay}@keyframes quay{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.quay{animation:none}}.cot-chon h2{margin:0 0 18px;font-size:21px;font-weight:680}.buoc{grid-template-columns:26px 1fr;gap:11px;margin-bottom:20px;display:grid}.so-buoc{background:var(--matcha);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;font-size:13px;font-weight:700;display:flex}.noi-dung-buoc h3{margin:2px 0 9px;font-size:15px;font-weight:620}.hang-chon{grid-template-columns:1fr 1fr;gap:8px;display:grid}.the-chon{border:2px solid var(--vien);cursor:pointer;text-align:left;background:#fff;border-radius:10px;flex-direction:column;gap:3px;padding:10px;font-family:inherit;display:flex}.the-chon strong{font-size:14px}.the-chon small{color:var(--chu-nhat);font-size:12px}.the-chon.dang-chon{border-color:var(--matcha);background:#f3f8ed}input[type=text]{border:1px solid var(--vien);letter-spacing:.04em;border-radius:9px;width:100%;padding:11px 13px;font-family:inherit;font-size:17px;font-weight:600}input[type=text]:focus{outline:2px solid var(--matcha);outline-offset:1px;border-color:#0000}.hang-icon{flex-wrap:wrap;gap:6px;display:flex}.o-icon{border:1px solid var(--vien);cursor:pointer;background:#fff;border-radius:9px;width:38px;height:38px;font-size:19px;line-height:1}.o-icon:hover{border-color:var(--matcha);background:#f3f8ed}.nhan-mau{color:var(--chu-nhat);margin:10px 0 6px;font-size:13px}.hang-mau{flex-wrap:wrap;gap:7px;display:flex}.o-mau{cursor:pointer;border:2px solid #0000;border-radius:50%;width:30px;height:30px;padding:0;box-shadow:0 0 0 1px #00000017}.o-mau.mau-sang{box-shadow:0 0 0 1px #00000047}.o-mau.dang-chon{border-color:var(--matcha-dam);box-shadow:0 0 0 2px #fff, 0 0 0 4px var(--matcha)}.w-canh-bao{color:var(--do);background:#fff5f4;border:1px solid #f2c9c4;border-radius:9px;margin-bottom:14px;padding:10px 12px;font-size:13px;line-height:1.5}.w-canh-bao.thanh-cong{color:var(--matcha-dam);background:#f1f8ea;border-color:#c9e0b4}.khoi-chot{border-top:1px solid var(--vien);padding-top:15px}.tom-tat{color:var(--chu-nhat);margin-bottom:10px;font-size:13px;line-height:1.5}.nut-dat{background:var(--matcha);color:#fff;cursor:pointer;border:none;border-radius:10px;width:100%;padding:13px;font-family:inherit;font-size:16px;font-weight:650}.nut-dat:hover{background:var(--matcha-dam)}.nut-dat[disabled]{cursor:not-allowed;background:#bcc4b3}.goi-y{color:var(--chu-nhat);margin:8px 0 0;font-size:12px;line-height:1.5}