:root{--brand: #1a56e8;--brand2: #3b82f6;--accent: #f59e0b;--ok: #10b981;--err: #ef4444;--orange: #f97316;--bg: #f0f4ff;--card: #ffffff;--text: #1e293b;--muted: #64748b;--border: #e2e8f0}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:Be Vietnam Pro,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;padding-bottom:60px}.top-banner{background:linear-gradient(135deg,#ee4d2d,#ff7337,#fa0);color:#fff;position:sticky;top:0;z-index:100;box-shadow:0 4px 20px #ee4d2d59}.banner-inner{max-width:900px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.banner-text{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700}.banner-text span{font-size:22px}.banner-actions{display:flex;gap:8px;flex-wrap:wrap}.banner-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:8px;font-weight:700;font-size:13px;text-decoration:none;transition:transform .15s,box-shadow .15s;cursor:pointer;border:none;font-family:inherit}.banner-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px #0003}.btn-shopee{background:#fff;color:#ee4d2d}.btn-fb{background:#1877f2;color:#fff}.btn-convert{background:#fff3;color:#fff;border:1.5px solid rgba(255,255,255,.5)}.hero{background:linear-gradient(135deg,#1a56e8,#3b82f6 60%,#60a5fa);padding:36px 16px 28px;text-align:center;color:#fff;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")}.hero h1{font-size:clamp(24px,5vw,38px);font-weight:900;letter-spacing:-.5px;position:relative}.hero-sub{font-size:14px;font-style:italic;opacity:.75;margin-top:4px;position:relative}.qr-badge{display:inline-block;margin-top:16px;padding:10px 20px;background:#ffffff26;border:1.5px solid rgba(255,255,255,.3);border-radius:10px;font-size:14px;font-weight:600;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:relative;cursor:pointer;text-decoration:none;color:#fff;transition:background .2s}.qr-badge:hover{background:#ffffff40}.main{max-width:900px;margin:0 auto;padding:24px 16px 0}.section-label{font-size:20px;font-weight:800;color:var(--text);margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;gap:8px}.support-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;background:linear-gradient(90deg,#f59e0b,#f97316);color:#fff;border-radius:20px;font-size:12px;font-weight:700;text-decoration:none;transition:transform .15s;flex-shrink:0}.support-btn:hover{transform:scale(1.04)}.folder-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin-bottom:28px}.folder-card{display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--card);border:1.5px solid var(--border);border-radius:12px;text-decoration:none;color:var(--text);font-size:13.5px;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:0 2px 6px #0000000a;position:relative;overflow:hidden}.folder-card:hover{border-color:var(--brand2);background:#eff6ff;transform:translateY(-2px);box-shadow:0 6px 18px #3b82f626}.fc-icon{font-size:22px;flex-shrink:0}.fc-name{flex:1;line-height:1.3}.lock-icon{font-size:14px;opacity:.45}.folder-card.unlocked .lock-icon{color:var(--ok);opacity:1}.card-app{background:#f0f4ff;border-color:#c7d7fa}.card-books{background:#fff0f5;border-color:#fbcfe8}.card-self{background:#f0fdf4;border-color:#a7f3d0}.files-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin-bottom:28px}.file-card{display:flex;align-items:center;gap:10px;padding:12px 14px;background:var(--card);border:1.5px solid var(--border);border-radius:12px;text-decoration:none;color:var(--text);font-size:13.5px;font-weight:600;transition:all .2s;box-shadow:0 2px 6px #0000000a}.file-card:hover{border-color:var(--brand2);background:#eff6ff;transform:translateY(-2px);box-shadow:0 6px 18px #3b82f61f}.file-icon{font-size:22px;flex-shrink:0}.product-note{font-size:13px;color:var(--muted);margin-bottom:14px;padding:10px 14px;background:#fff7ed;border:1px solid #fed7aa;border-radius:10px}.product-search-wrap{position:relative;margin-bottom:16px}.product-search{width:100%;padding:11px 16px 11px 42px;border:1.5px solid var(--border);border-radius:12px;font-size:14px;font-family:inherit;outline:none;color:var(--text);background:var(--card);transition:border-color .2s}.product-search:focus{border-color:var(--brand2)}.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:18px;pointer-events:none}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}.product-card{background:var(--card);border:1.5px solid var(--border);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;transition:all .2s;box-shadow:0 2px 6px #0000000a}.product-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px #0000001a;border-color:#fed7aa}.product-img-wrap{aspect-ratio:1/1;background:#f8fafc;display:flex;align-items:center;justify-content:center;font-size:36px}.product-body{padding:10px;display:flex;flex-direction:column;flex:1}.product-name{font-size:12px;font-weight:600;color:var(--text);line-height:1.4;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:50px}.buy-btn{margin-top:10px;display:block;text-align:center;padding:8px;background:linear-gradient(90deg,#ee4d2d,#ff7337);color:#fff;font-weight:700;font-size:13px;border-radius:8px;text-decoration:none;transition:opacity .15s}.buy-btn:hover{opacity:.9}.modal-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;z-index:200;align-items:center;justify-content:center;padding:16px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-overlay.open{display:flex}.modal-box{background:#fff;border-radius:20px;padding:28px 24px;width:100%;max-width:480px;max-height:95vh;overflow-y:auto;position:relative;box-shadow:0 24px 60px #00000040;animation:pop .25s ease-out}@keyframes pop{0%{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}.modal-close{position:absolute;top:14px;right:14px;background:#f1f5f9;border:none;border-radius:50%;width:32px;height:32px;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;transition:background .15s}.modal-close:hover{background:#e2e8f0}.modal-title{font-size:22px;font-weight:800;text-align:center;margin-bottom:6px}.modal-desc{font-size:14px;color:var(--muted);text-align:center;margin-bottom:16px}.modal-img{display:block;width:100px;margin:0 auto 18px;border-radius:12px}.unlock-option{border:2px solid var(--border);border-radius:14px;padding:16px;margin-bottom:12px;transition:border-color .2s,background .2s}.unlock-option.active-wait{border-color:var(--brand2);background:#eff6ff}.unlock-option.active-shopee{border-color:var(--orange);background:#fff7ed}.unlock-option.done{border-color:var(--ok);background:#f0fdf4}.option-title{font-size:16px;font-weight:700;margin-bottom:10px}.option-body{display:flex;align-items:center;justify-content:center;gap:10px;min-height:52px}.spinner{width:20px;height:20px;border:3px solid #dbeafe;border-top-color:var(--brand2);border-radius:50%;animation:spin .7s linear infinite}.spinner.orange{border-color:#fed7aa;border-top-color:var(--orange)}@keyframes spin{to{transform:rotate(360deg)}}.done-row{display:flex;align-items:center;gap:8px;color:var(--ok);font-weight:700}.shopee-trigger-btn{padding:10px 20px;background:linear-gradient(90deg,#ee4d2d,#ff7337);color:#fff;font-weight:700;font-size:14px;border:none;border-radius:10px;cursor:pointer;font-family:inherit;transition:opacity .15s}.shopee-trigger-btn:hover{opacity:.9}.shopee-trigger-btn:disabled{opacity:.5;cursor:not-allowed}.access-btn{width:100%;margin-top:16px;padding:14px;border-radius:12px;border:none;font-size:16px;font-weight:800;font-family:inherit;cursor:pointer;background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff;transition:opacity .15s,transform .15s;box-shadow:0 6px 18px #1a56e84d}.access-btn:hover:not(:disabled){transform:translateY(-2px)}.access-btn:disabled{background:#e2e8f0;color:#94a3b8;cursor:not-allowed;box-shadow:none}.convert-section{background:var(--card);border:1.5px solid var(--border);border-radius:16px;padding:18px;margin-bottom:24px}.convert-title{font-size:16px;font-weight:700;margin-bottom:12px}.convert-input-row{display:grid;grid-template-columns:1fr 48px;border:1.5px solid var(--border);border-radius:10px;overflow:hidden;margin-bottom:10px;transition:border-color .2s}.convert-input-row:focus-within{border-color:var(--brand2)}.convert-input{border:none;padding:11px 13px;font-size:14px;font-family:inherit;color:var(--text);outline:none;width:100%}.convert-input::placeholder{color:#b0bec5}.paste-btn{border:none;border-left:1.5px solid var(--border);background:transparent;cursor:pointer;font-size:20px;transition:background .15s}.paste-btn:hover{background:#f8fafc}.convert-btn{width:100%;padding:13px;border:none;border-radius:10px;background:linear-gradient(90deg,#ee4d2d,#ff7337);color:#fff;font-size:15px;font-weight:700;font-family:inherit;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:opacity .15s,transform .15s;box-shadow:0 6px 16px #ee4d2d40}.convert-btn:hover{transform:translateY(-2px)}.convert-btn:disabled{opacity:.7;cursor:not-allowed;transform:none}.btn-spinner{width:18px;height:18px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:none}.convert-btn.loading .btn-spinner{display:block}.result-row{display:none;grid-template-columns:1fr 100px;gap:8px;margin-top:10px}.result-row.show{display:grid}.result-input{width:100%;border:1.5px solid #fed7aa;border-radius:10px;padding:10px 12px;font-size:13px;font-family:inherit;color:var(--text);outline:none}.copy-btn{border:1.5px solid #ffd1ba;border-radius:10px;background:#fff3eb;color:#bf4023;font-weight:700;font-size:13px;cursor:pointer;font-family:inherit;transition:background .15s}.copy-btn:hover{background:#ffe8d8}.copy-btn.copied{background:#e6f9ee;border-color:#9de0b8;color:var(--ok)}.status-text{min-height:18px;margin-top:6px;font-size:13px;font-weight:600}.status-text.ok{color:var(--ok)}.status-text.err{color:var(--err)}.guide-box{background:var(--card);border:1.5px solid var(--border);border-radius:16px;padding:18px;margin-bottom:24px}.guide-box h3{font-size:16px;font-weight:700;margin-bottom:12px}.guide-box ol{padding-left:20px;font-size:14px;line-height:1.8;color:#475569}.guide-box ol li b{color:var(--text)}.fb-link{display:inline-flex;align-items:center;gap:6px;margin-top:12px;padding:8px 14px;background:#eff6ff;border:1.5px solid #bfdbfe;border-radius:8px;color:#1877f2;font-weight:700;font-size:13px;text-decoration:none;transition:background .15s}.fb-link:hover{background:#dbeafe}.divider{margin:24px 0;border:none;border-top:1.5px dashed var(--border)}@media (max-width: 600px){.banner-text{font-size:13px}.folder-grid,.product-grid{grid-template-columns:repeat(2,1fr)}.result-row{grid-template-columns:1fr 80px}}