:root{--bg: #f0f2f5;--card: #ffffff;--primary: #3b82f6;--primary-dark: #2563eb;--primary-light: #dbeafe;--text: #1f2937;--text-muted: #6b7280;--border: #e5e7eb;--shadow: 0 4px 24px rgba(0, 0, 0, .08);--radius: 12px;--t: .2s}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.container{max-width:1200px;margin:0 auto;padding:24px 16px 80px}.header{text-align:center;margin-bottom:28px}.header h1{font-size:24px;font-weight:700;margin-bottom:6px}.header p{font-size:14px;color:var(--text-muted)}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;margin-bottom:24px}.ext-badge-row{display:flex;align-items:center;gap:8px;margin-bottom:16px;flex-wrap:wrap}.ext-badge{padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600;background:var(--primary-light);color:var(--primary);letter-spacing:.5px}.ext-badge-desc{font-size:13px;color:var(--text-muted)}.tabs{display:flex;gap:8px;margin-bottom:20px}.tab-btn{flex:1;padding:10px 16px;border:2px solid var(--border);border-radius:8px;background:transparent;color:var(--text-muted);font-size:15px;font-weight:500;cursor:pointer;transition:var(--t);display:flex;align-items:center;justify-content:center;gap:6px}.tab-btn:hover{border-color:var(--primary);color:var(--primary)}.tab-btn.active{border-color:var(--primary);background:var(--primary-light);color:var(--primary)}.panel{display:none}.panel.active{display:block}.url-input{width:100%;padding:12px 16px;border:2px solid var(--border);border-radius:8px;font-size:15px;color:var(--text);outline:none;transition:var(--t)}.url-input:focus{border-color:var(--primary)}.url-input::placeholder{color:#9ca3af}.drop-zone{border:2px dashed var(--border);border-radius:8px;padding:48px 24px;text-align:center;cursor:pointer;transition:var(--t);position:relative}.drop-zone:hover,.drop-zone.dragover{border-color:var(--primary);background:var(--primary-light)}.drop-zone input[type=file]{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer;width:100%;height:100%}.drop-icon{font-size:40px;margin-bottom:12px}.drop-text{font-size:15px;color:var(--text-muted)}.drop-text strong{color:var(--primary)}.drop-hint{font-size:13px;color:#9ca3af;margin-top:6px}.file-info{display:flex;align-items:center;gap:12px;padding:14px 16px;background:var(--primary-light);border-radius:8px;margin-top:12px}.file-info .fi-icon{font-size:28px}.file-info .fi-ext{padding:3px 8px;border-radius:6px;font-size:11px;font-weight:700;background:var(--primary);color:#fff;letter-spacing:.5px;flex-shrink:0}.file-info .fi-name{font-size:14px;font-weight:500;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-info .fi-size{font-size:13px;color:var(--text-muted)}.fi-remove{width:28px;height:28px;border-radius:50%;border:none;background:#00000014;cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:var(--t);flex-shrink:0}.fi-remove:hover{background:#ef444426;color:#ef4444}.settings-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}.setting-item{display:flex;flex-direction:column;gap:7px;flex:1;min-width:0}.s-label{font-size:11px;font-weight:600;color:#9ca3af;text-transform:uppercase;letter-spacing:.5px}.dpi-tags{display:flex;flex-wrap:wrap;gap:5px}.dpi-tag{padding:5px 10px;border-radius:20px;border:1.5px solid var(--border);background:#f8f9fa;font-size:13px;font-weight:500;color:var(--text-muted);cursor:pointer;transition:var(--t);white-space:nowrap;line-height:1}.dpi-tag:hover{border-color:var(--primary);color:var(--primary)}.dpi-tag.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;box-shadow:0 2px 8px #3b82f647}.fmt-row{display:flex;gap:5px}.fmt-btn{flex:1;padding:7px 0;border-radius:8px;border:1.5px solid var(--border);background:#f8f9fa;font-size:13px;font-weight:500;color:var(--text-muted);cursor:pointer;transition:var(--t);text-align:center}.fmt-btn:hover{border-color:var(--primary);color:var(--primary)}.fmt-btn.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;box-shadow:0 2px 8px #3b82f647}.output-toggle{display:flex;gap:5px;flex:1}.out-btn{flex:1;padding:7px 6px;border-radius:8px;border:1.5px solid var(--border);background:#f8f9fa;font-size:13px;font-weight:500;color:var(--text-muted);cursor:pointer;transition:var(--t);text-align:center;display:flex;align-items:center;justify-content:center;gap:4px}.out-btn:hover{border-color:var(--primary);color:var(--primary)}.out-btn.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;box-shadow:0 2px 8px #3b82f647}.action-bar{display:flex;gap:12px;margin-top:20px;align-items:center;flex-wrap:wrap}.btn{padding:12px 28px;border:none;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:var(--t);display:inline-flex;align-items:center;gap:8px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-1px)}.btn-primary:disabled{background:#93c5fd;cursor:not-allowed;transform:none}.error-box{background:#fef2f2;border:1.5px solid #fecaca;border-radius:var(--radius);padding:16px 20px;margin-bottom:24px;color:#dc2626;font-size:14px;line-height:1.6;display:flex;gap:12px;align-items:flex-start}.error-box .err-icon{font-size:20px;flex-shrink:0}.loading-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:36px 28px;margin-bottom:24px;text-align:center}.loading-title{font-size:16px;font-weight:600;margin-bottom:20px}.progress-wrap{background:#e5e7eb;border-radius:10px;height:10px;overflow:hidden;margin-bottom:14px}.progress-bar{height:100%;background:linear-gradient(90deg,var(--primary),#60a5fa);border-radius:10px;transition:width .3s ease}.progress-text{font-size:14px;color:var(--text-muted)}.loading-preview{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:20px}.loading-thumb{width:72px;height:96px;border-radius:6px;overflow:hidden}.loading-thumb img{width:100%;height:100%;object-fit:cover;display:block}.result-card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-bottom:24px}.result-header{padding:12px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px;flex-wrap:wrap;background:#fafafa}.result-title{font-size:14px;font-weight:700;color:var(--text)}.result-meta{font-size:12px;color:var(--text-muted);display:flex;gap:10px;padding-top:4px;border-top:1px dashed var(--border);margin-top:4px;width:100%}.action-btn{padding:9px 14px;border:none;border-radius:8px;background:var(--primary-light);font-size:13px;font-weight:600;cursor:pointer;transition:var(--t);display:inline-flex;align-items:center;gap:5px;color:var(--primary);text-decoration:none;flex-shrink:0}.action-btn:hover{background:#bfdbfe}.action-btn.primary{background:var(--primary);color:#fff}.action-btn.primary:hover{background:var(--primary-dark)}.action-btn.ml-auto{margin-left:auto}.preview-pc{display:flex;height:calc(100vh - 380px);min-height:500px}.preview-thumbs{width:150px;flex-shrink:0;border-right:1px solid var(--border);overflow-y:auto;padding:12px;display:grid;grid-template-columns:1fr;gap:10px;background:#fafafa;scrollbar-width:thin;grid-auto-rows:120px;align-content:start}.thumb-item{border:2px solid transparent;border-radius:6px;overflow:hidden;cursor:pointer;transition:var(--t);position:relative;background:#f3f4f6;height:120px;display:flex;align-items:center;justify-content:center}.thumb-item:hover{border-color:#93c5fd}.thumb-item.active{border-color:var(--primary)}.thumb-item img{max-width:100%;max-height:100%;object-fit:contain;display:block}.thumb-num{position:absolute;bottom:4px;right:4px;background:#0000008c;color:#fff;font-size:11px;font-weight:600;padding:1px 5px;border-radius:4px}.thumb-dl{position:absolute;top:4px;right:4px;background:#0000008c;color:#fff;width:22px;height:22px;border-radius:4px;border:none;cursor:pointer;font-size:12px;display:none;align-items:center;justify-content:center}.thumb-item:hover .thumb-dl{display:flex}.thumb-dl:hover{background:var(--primary)}.preview-main{flex:1;display:flex;align-items:center;justify-content:center;background:#f8f9fa;padding:24px;overflow:auto}.preview-main img{max-width:100%;max-height:100%;border-radius:6px;box-shadow:0 8px 32px #00000026;object-fit:contain}.preview-h5{display:none}.h5-nav{display:flex;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--border);background:#fafafa}.h5-nav button{width:36px;height:36px;border-radius:50%;border:none;background:var(--primary-light);cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;color:var(--primary);transition:var(--t)}.h5-nav button:disabled{opacity:.3;cursor:not-allowed}.h5-nav .page-counter{font-size:15px;font-weight:700;flex:1;text-align:center}.h5-pages{overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;display:flex;scrollbar-width:none;background:#1a1a1a}.h5-pages::-webkit-scrollbar{display:none}.h5-page{flex-shrink:0;width:100%;scroll-snap-align:start;display:flex;align-items:center;justify-content:center;padding:12px;min-height:60vh;background:#1a1a1a}.h5-page img{max-width:100%;max-height:70vh;border-radius:8px;box-shadow:0 8px 40px #00000080;object-fit:contain}.h5-thumb-bar{display:flex;gap:6px;padding:8px 12px;overflow-x:auto;background:#fff;border-top:1px solid var(--border);scrollbar-width:none;padding-bottom:max(8px,env(safe-area-inset-bottom))}.h5-thumb-bar::-webkit-scrollbar{display:none}.h5-thumb{flex-shrink:0;width:56px;height:74px;border:2px solid transparent;border-radius:6px;overflow:hidden;cursor:pointer;background:#f3f4f6;transition:var(--t)}.h5-thumb.active{border-color:var(--primary);box-shadow:0 0 0 2px #3b82f640}.h5-thumb img{width:100%;height:100%;object-fit:cover}@media (min-width: 769px){.preview-pc{display:flex!important}.preview-h5{display:none!important}}@media (max-width: 768px){.preview-pc{display:none!important}.preview-h5{display:block!important}.container{padding:14px 12px 80px}.header{margin-bottom:20px}.header h1{font-size:20px}.card{padding:18px 14px;border-radius:16px}.tab-btn{padding:11px 12px;font-size:14px}.settings-row{gap:8px}.setting-item{flex:1 1 calc(50% - 4px);min-width:0}.setting-item:last-child{flex:1 1 100%}.dpi-tags{gap:4px}.dpi-tag{padding:5px 8px;font-size:12px}.action-bar{flex-direction:column;align-items:stretch;margin-top:16px}.btn-primary{width:100%;justify-content:center;padding:14px;font-size:16px;border-radius:12px;box-shadow:0 4px 16px #3b82f64d}.toast{bottom:max(24px,calc(env(safe-area-inset-bottom) + 12px))}.result-meta{flex-wrap:wrap;gap:6px}}.fade-in{animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%) translateY(80px);background:#1f2937;color:#fff;padding:12px 24px;border-radius:10px;font-size:14px;font-weight:500;z-index:9999;opacity:0;transition:transform .3s ease,opacity .3s ease;pointer-events:none;white-space:nowrap}.toast.show{transform:translate(-50%) translateY(0);opacity:1}.toast.success{background:#16a34a}.toast.error{background:#dc2626}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;z-index:10000;display:flex;align-items:center;justify-content:center;padding:16px}.modal-box{background:#fff;border-radius:14px;padding:28px 24px;max-width:480px;width:100%;box-shadow:0 20px 60px #0003}.modal-title{font-size:16px;font-weight:700;margin-bottom:6px}.modal-desc{font-size:13px;color:#6b7280;margin-bottom:16px}.modal-input{flex:1;padding:10px 14px;border:1.5px solid #e5e7eb;border-radius:8px;font-size:14px;color:#1f2937;background:#f9fafb;outline:none}.modal-copy-btn{padding:10px 18px;background:#3b82f6;color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;white-space:nowrap}.modal-row{display:flex;gap:8px;margin-top:12px}.modal-link{flex:1;padding:9px;text-align:center;border:1.5px solid #e5e7eb;border-radius:8px;font-size:13px;color:#1f2937;text-decoration:none;background:#f9fafb}.modal-close-btn{flex:1;padding:9px;border:none;background:#f3f4f6;border-radius:8px;font-size:13px;color:#6b7280;cursor:pointer}