:root{--primary: #1677ff;--alipay: #1677ff;--wxpay: #07c160;--bg: #f5f6fa;--card-bg: #ffffff;--text: #1a1a2e;--text-secondary: #6b7280;--border: #e5e7eb;--danger: #ef4444;--success: #22c55e;--warning: #f59e0b;--radius: 12px;--shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 25px rgba(0, 0, 0, .08), 0 4px 10px rgba(0, 0, 0, .04)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;justify-content:center;padding:40px 16px}.container{width:100%;max-width:520px}.container-wide{max-width:1100px}.header{text-align:center;margin-bottom:32px}.header h1{font-size:28px;font-weight:700;letter-spacing:-.5px;margin-bottom:6px}.header-icon{width:28px;height:28px;vertical-align:-5px;margin-right:4px}.header p{color:var(--text-secondary);font-size:14px}.card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px 24px;margin-bottom:20px}.tab-container{display:flex;background:#f3f4f6;border-radius:10px;padding:4px;margin-bottom:24px}.tab-btn{flex:1;padding:10px 16px;border:none;background:transparent;border-radius:8px;cursor:pointer;font-size:15px;font-weight:600;color:var(--text-secondary);transition:all .25s ease;display:flex;align-items:center;justify-content:center;gap:8px}.tab-btn.active{background:#fff;color:var(--text);box-shadow:0 1px 3px #00000014}.tab-btn.alipay.active{color:var(--alipay)}.tab-btn.wxpay.active{color:var(--wxpay)}.tab-icon{width:22px;height:22px;flex-shrink:0}.form-group{margin-bottom:18px}.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}.form-group label .required{color:var(--danger);margin-left:2px}.form-row{display:flex;gap:12px}.form-row .form-group{flex:1}.input{width:100%;padding:10px 14px;border:1.5px solid var(--border);border-radius:8px;font-size:15px;color:var(--text);transition:border-color .2s,box-shadow .2s;background:#fafbfc;outline:none}.input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #1677ff1a;background:#fff}.input::placeholder{color:#c0c6cf}.input.amount{font-size:20px;font-weight:600;letter-spacing:1px}.hint{font-size:12px;color:#9ca3af;margin-top:4px}.btn-query{width:auto;padding:10px 18px;background:var(--text-secondary);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;cursor:pointer;transition:background .2s;white-space:nowrap}.btn-query:hover{background:#4b5563}.btn-query:active{transform:scale(.98)}.orders-toolbar{display:flex;align-items:center;gap:10px;margin-bottom:16px}.orders-filter{width:auto;padding:8px 12px}.orders-back{margin-left:auto;font-size:13px;color:var(--primary);text-decoration:none}.orders-back:hover{text-decoration:underline}.orders-table-wrap{overflow-x:auto}.orders-table{width:100%;border-collapse:collapse;font-size:14px}.orders-table th,.orders-table td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}.orders-table th{color:var(--text-secondary);font-weight:600;font-size:13px}.orders-table .mono{font-family:SF Mono,Fira Code,Menlo,monospace;font-size:12px}.orders-table .status-badge{margin:0;padding:2px 10px;font-size:12px}.btn-view{padding:4px 12px;border:1px solid var(--primary);background:transparent;color:var(--primary);border-radius:6px;font-size:12px;cursor:pointer;transition:all .2s}.btn-view:hover{background:var(--primary);color:#fff}.orders-empty{text-align:center;color:#9ca3af;font-size:14px;padding:30px 0}.orders-link-row{margin-top:16px;text-align:right}.orders-link{font-size:13px;color:var(--primary);text-decoration:none}.orders-link:hover{text-decoration:underline}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}.modal{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);max-width:560px;width:100%;max-height:85vh;display:flex;flex-direction:column}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.modal-header h3{font-size:16px}.modal-close{background:none;border:none;font-size:22px;line-height:1;color:var(--text-secondary);cursor:pointer;padding:2px 6px}.modal-close:hover{color:var(--text)}.modal-body{padding:16px 20px;overflow-y:auto}.modal-body .info-list{margin-top:0;border-top:none;padding-top:0}.raw-block{margin-top:12px;border:1px solid var(--border);border-radius:8px}.raw-block summary{padding:8px 12px;font-size:13px;color:var(--text-secondary);cursor:pointer}.raw-block pre{margin:0;padding:10px 12px;border-top:1px solid var(--border);background:#fafbfc;font-size:11px;line-height:1.5;max-height:200px;overflow:auto;white-space:pre-wrap;word-break:break-all}.modal-footer{padding:12px 20px;border-top:1px solid var(--border);text-align:right}.btn{width:100%;padding:13px 20px;border:none;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s;letter-spacing:.5px;position:relative;overflow:hidden}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:#0958d9;box-shadow:0 4px 12px #1677ff59}.btn-primary:active{transform:scale(.98)}.btn-primary:disabled{background:#a0c4ff;cursor:not-allowed;box-shadow:none}.btn-alipay{background:var(--alipay);color:#fff}.btn-alipay:hover{background:#0958d9;box-shadow:0 4px 12px #1677ff59}.btn-wxpay{background:var(--wxpay);color:#fff}.btn-wxpay:hover{background:#06ad56;box-shadow:0 4px 12px #07c16059}.spinner{display:inline-block;width:18px;height:18px;border:2.5px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;margin-right:8px;vertical-align:middle}@keyframes spin{to{transform:rotate(360deg)}}.error-msg{background:#fef2f2;border:1px solid #fecaca;color:#dc2626;padding:12px 16px;border-radius:8px;font-size:14px;margin-top:16px;display:none}.error-msg.show{display:block}.result-card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:32px 24px;text-align:center;display:none}.result-card.show{display:block}.result-card h3{font-size:18px;margin-bottom:8px}.result-card .status-badge{display:inline-block;padding:4px 12px;border-radius:20px;font-size:13px;font-weight:600;margin-bottom:20px}.status-PROCESSING{background:#fef3c7;color:#92400e}.status-SUCCESS{background:#dcfce7;color:#166534}.status-FAILED{background:#fef2f2;color:#991b1b}.qr-container{display:flex;justify-content:center;margin:16px 0}.qr-wrapper{padding:16px;background:#fff;border:1px solid var(--border);border-radius:12px;display:inline-block}.qr-wrapper canvas,.qr-wrapper img{display:block}.poll-status{display:none;margin-top:14px;padding:10px 14px;border-radius:8px;font-size:13px;font-weight:500;background:#f3f4f6;color:var(--text-secondary)}.poll-status.show{display:block}.poll-status.pending{background:#fef3c7;color:#92400e}.poll-status.success{background:#dcfce7;color:#166534}.poll-status.error{background:#fef2f2;color:#991b1b}.info-list{text-align:left;margin-top:20px;border-top:1px solid var(--border);padding-top:16px}.info-item{display:flex;justify-content:space-between;padding:6px 0;font-size:13px}.info-item .label{color:var(--text-secondary)}.info-item .value{font-weight:500;word-break:break-all;text-align:right;max-width:60%}.info-item .value.mono{font-family:SF Mono,Fira Code,Menlo,monospace;font-size:12px}.btn-new{margin-top:20px;padding:10px 24px;background:transparent;border:1.5px solid var(--border);border-radius:8px;color:var(--text-secondary);font-size:14px;cursor:pointer;transition:all .2s}.btn-new:hover{border-color:#9ca3af;color:var(--text)}.footer{text-align:center;color:#c0c6cf;font-size:12px;margin-top:24px}