.si{--navy:#14213d;--gold:#e9b949;--ink:#1c1c1e;--muted:#5f5f64;--bg:#f7f5f0;--line:#e1ded6;background:var(--bg);max-width:720px;color:var(--ink);margin:0 auto;padding-bottom:84px}.si section{padding:28px 16px 8px}.si h1{color:#fff;margin:8px 0 4px;font-size:1.9rem;font-weight:700}.si h2{color:var(--navy);margin:0 0 10px;font-size:1.35rem;font-weight:700}.si .muted{color:var(--muted);font-size:.95rem}.si img{max-width:100%;display:block}.si .hero{background:var(--navy);color:#fff;padding:0}.si .hero>img{aspect-ratio:16/9;object-fit:cover;width:100%}.si .hero-body{text-align:center;padding:0 16px 24px}.si .hero .logo{border:3px solid #fff;border-radius:50%;width:88px;height:88px;margin:-44px auto 0;position:relative}.si .sub{margin:4px 0;font-size:1.1rem}.si .slogan{color:var(--gold);margin:6px 0 16px;font-weight:700}.si .btns{gap:10px;display:grid}.si .btn{text-align:center;border-radius:999px;padding:13px 18px;font-size:1.05rem;font-weight:700;text-decoration:none;display:inline-block}.si .btn:hover{opacity:.92;text-decoration:none}.si .btn.zalo{color:#fff;background:#0068ff}.si .btn.messenger{color:#0866ff;background:#fff;border:2px solid #0866ff}.si .btn.ghost{color:#fff;background:0 0;border:2px solid #fff9}.si .btn.block{margin-top:10px;display:block}.si .video{aspect-ratio:16/9;background:#000;border-radius:12px;width:100%;margin:6px 0 14px}.si .steps{grid-template-columns:repeat(2,1fr);gap:10px;display:grid}.si figure{margin:0}.si figure img{aspect-ratio:4/3;object-fit:cover;border-radius:10px;width:100%}.si figcaption{align-items:center;gap:8px;margin-top:6px;font-weight:600;display:flex}.si figcaption i{border:1px solid #ccc;border-radius:50%;width:16px;height:16px;display:inline-block}.si .wide{aspect-ratio:16/7;object-fit:cover;border-radius:12px;width:100%;margin-bottom:12px}.si .lines{gap:10px;display:grid}.si .line{border:1px solid var(--line);border-left:6px solid var(--gold);background:#fff;border-radius:12px;gap:2px;padding:12px 14px;display:grid}.si .line strong{color:var(--navy);font-size:1.08rem}.si .colors{grid-template-columns:repeat(3,1fr);gap:10px;display:grid}.si .colors figure img{aspect-ratio:3/4;object-position:center 35%}.si details{border:1px solid var(--line);background:#fff;border-radius:12px;margin-bottom:10px;padding:10px 12px}.si summary{color:var(--navy);cursor:pointer;font-weight:700}.si table{border-collapse:collapse;width:100%;margin-top:8px;font-size:.9rem}.si th{background:var(--navy);color:#fff;font-weight:600}.si th,.si td{text-align:left;border-bottom:1px solid var(--line);padding:6px 5px}.si .policy{gap:8px;margin:0 0 8px;padding-left:20px;display:grid}.si .policy li::marker{color:var(--gold)}.si footer{color:var(--muted);text-align:center;padding:28px 16px;font-size:.88rem;line-height:1.7}.si .bar{border-top:1px solid var(--line);background:#f7f5f0f5;grid-template-columns:1fr 1fr;gap:10px;max-width:720px;margin:0 auto;padding:10px 16px;display:grid;position:fixed;bottom:0;left:0;right:0}