:root {
    --bg: #f0f2f5;
    --card: #ffffff;
    --primary: #3b82f6;
    --primary-light: #dbeafe;
    --primary-hover: #2563eb;
    --text: #1f2937;
    --text-secondary: #6b7280;
    --border: #e5e7eb;
    --success: #10b981;
    --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --radius: 8px;
    --radius-lg: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* 头部 */
.header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.header-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

.logo i {
    font-size: 22px;
}

/* 主体 */
.main {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* 搜索框 */
.search-box {
    background: var(--card);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 10px;
    align-items: center;
}

.search-input-wrap {
    flex: 1;
    position: relative;
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 14px;
    pointer-events: none;
}

.search-input {
    width: 100%;
    height: 44px;
    padding: 0 38px 0 40px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
    background: var(--bg);
}

.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}

.search-clear {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 26px;
    height: 26px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: all .15s;
}

.search-clear:hover {
    background: var(--border);
    color: var(--text);
}

.btn {
    height: 44px;
    padding: 0 24px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all .2s;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 2px 8px rgba(59,130,246,.3);
}

/* 结果信息 */
.result-info {
    margin-top: 12px;
    padding: 0 4px;
    font-size: 13px;
    color: var(--text-secondary);
}

/* 结果表格 */
.result-table-wrap {
    margin-top: 8px;
    background: var(--card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.result-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.result-table thead {
    background: #f8fafc;
}

.result-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.result-table td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.col-idx {
    width: 50px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
}

.col-code {
    width: 180px;
    font-family: "SF Mono", "Fira Code", "Consolas", monospace;
    font-weight: 600;
    color: var(--primary);
    font-size: 14px;
    letter-spacing: .3px;
}

.col-desc {
    color: var(--text);
}

.col-action {
    width: 36px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
}

.result-table tbody tr {
    cursor: pointer;
    transition: background .15s;
}

.result-table tbody tr:hover {
    background: #eff6ff;
}

.result-table tbody tr.row-copied {
    background: #ecfdf5;
}

.result-table tbody tr.row-copied .col-action {
    color: var(--success);
}

.result-table tbody tr:last-child td {
    border-bottom: none;
}

/* 空状态 */
.empty-state {
    margin-top: 80px;
    text-align: center;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 52px;
    color: #d1d5db;
    margin-bottom: 16px;
    display: block;
}

.empty-state p {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
}

.empty-state span {
    font-size: 14px;
}

/* 分页 */
.pagination {
    margin-top: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.page-btn {
    min-width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--card);
    color: var(--text);
    cursor: pointer;
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all .15s;
}

.page-btn:hover:not(.active):not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.page-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.page-btn:disabled {
    opacity: .4;
    cursor: not-allowed;
}

.page-info {
    font-size: 13px;
    color: var(--text-secondary);
    padding: 0 8px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: #1f2937;
    color: #fff;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,.2);
    z-index: 999;
    animation: toastIn .3s;
}

.toast i {
    color: var(--success);
}

/* 加载 */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 14px;
}

.loading i {
    font-size: 24px;
    margin-bottom: 8px;
    display: block;
    animation: spin 1s linear infinite;
}

/* 动画 */
@keyframes toastIn {
    from { opacity: 0; transform: translateX(-50%) translateY(10px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 响应式 */
@media (max-width: 640px) {
    .search-box {
        flex-direction: column;
        align-items: stretch;
    }

    .col-code {
        width: 120px;
        font-size: 13px;
    }

    .result-table th,
    .result-table td {
        padding: 8px 10px;
    }
}