/* ========================================
   压差比KV计算器样式文件
   分类整理版 - 仅包含实际使用的样式
   ======================================== */

/* ========================================
   1. CSS变量定义
   ======================================== */
:root {
    /* 浅色主题变量 */
    --bg-primary: #fafafa;
    --bg-secondary: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e5e7eb;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
    --navbar-bg: rgba(255, 255, 255, 0.95);
    --card-bg: #ffffff;
    
    /* 颜色变量 */
    --primary-color: #3b82f6;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    
    /* 尺寸变量 */
    --navbar-height: 70px;
    --status-bar-height: 50px;
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

/* 深色主题变量 */
body.dark-theme {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #475569;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.4);
    --navbar-bg: rgba(30, 41, 59, 0.95);
    --card-bg: #1e293b;
}

/* ========================================
   2. 基础重置和全局样式
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ========================================
   3. 导航栏样式
   ======================================== */
.navbar {
    background: var(--navbar-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 0.5rem 0;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    transition: transform 0.3s ease;
}

.logo-img:hover {
    transform: scale(1.1);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* 配置按钮 */
.config-btn {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    color: var(--text-secondary);
}

.config-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: scale(1.1) rotate(45deg);
}

.config-btn i {
    font-size: 1rem;
    transition: transform 0.3s ease;
}

/* 主题切换按钮 */
.theme-toggle {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.theme-toggle:hover {
    border-color: var(--primary-color);
    transform: scale(1.1);
}

.theme-icon-light,
.theme-icon-dark {
    font-size: 1rem;
    transition: all 0.3s ease;
    position: absolute;
}

.theme-icon-light {
    color: var(--warning-color);
    opacity: 1;
    transform: rotate(0deg);
}

.theme-icon-dark {
    color: #6366f1;
    opacity: 0;
    transform: rotate(180deg);
}

body.dark-theme .theme-icon-light {
    opacity: 0;
    transform: rotate(-180deg);
}

body.dark-theme .theme-icon-dark {
    opacity: 1;
    transform: rotate(0deg);
}

/* 关闭页面按钮 */
.close-page-btn {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    color: var(--text-secondary);
}

.close-page-btn:hover {
    border-color: #ef4444;
    color: #ef4444;
    transform: scale(1.1);
}

/* ========================================
   4. 主要内容区域
   ======================================== */
#main-content {
    transition: opacity 0.3s ease;
    margin-top: var(--navbar-height);
    margin-bottom: var(--status-bar-height);
    flex: 1;
    padding: 2rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   5. 状态栏样式
   ======================================== */
.status-bar {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    position: fixed;
    bottom: 0;
    width: 100%;
    z-index: 1000;
    flex-shrink: 0;
}

.status-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    font-size: 0.85rem;
}

.status-left,
.status-right {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.status-center {
    text-align: center;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.status-online {
    color: var(--success-color);
    animation: pulse 2s infinite;
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

#current-time {
    font-family: 'Courier New', monospace;
    font-weight: 500;
}

/* ========================================
   6. 卡片组件样式
   ======================================== */
.card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 4px 6px var(--shadow-color);
    margin-bottom: 2rem;
    overflow: hidden;
    transition: all 0.3s ease;
    animation: fadeIn 0.6s ease-out;
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: 2rem;
}

/* ========================================
   7. 表单组件样式
   ======================================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group input:read-only {
    background-color: #f8fafc;
    cursor: not-allowed;
}

body.dark-theme .form-group input:read-only {
    background-color: #334155;
}

/* 数字输入框特殊样式 */
.form-group input[type="number"] {
    -webkit-appearance: none;
    -moz-appearance: textfield;
    appearance: none;
}

.form-group input[type="number"]::-webkit-outer-spin-button,
.form-group input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* 压力数据组样式 */
.pressure-group {
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

body.dark-theme .pressure-group {
    background: #1e293b;
}

/* 管径信息显示组样式 */
.pipe-info-group {
    background: #f0f9ff;
    border: 1px solid #0ea5e9;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

body.dark-theme .pipe-info-group {
    background: #0c4a6e;
    border-color: #0284c7;
}

.pipe-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.pipe-info-item {
    background: white;
    border: 1px solid #e0f2fe;
    border-radius: 8px;
    padding: 1rem;
}

.pipe-info-item:hover {
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.1);
    border-color: #0ea5e9;
}

body.dark-theme .pipe-info-item {
    background: #1e293b;
    border-color: #334155;
}

body.dark-theme .pipe-info-item:hover {
    box-shadow: 0 2px 8px rgba(2, 132, 199, 0.2);
}

.pipe-info-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: #0369a1;
    margin-bottom: 0.5rem;
    text-align: center;
}

body.dark-theme .pipe-info-label {
    color: #38bdf8;
}

.pipe-info-values {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
}

.pipe-info-value {
    flex: 1;
    text-align: center;
    background: #f8fafc;
    border-radius: 4px;
    padding: 0.5rem;
    border: 1px solid #e2e8f0;
}

body.dark-theme .pipe-info-value {
    background: #334155;
    border-color: #475569;
}

.value-label {
    font-size: 0.8rem;
    color: #64748b;
    display: block;
    margin-bottom: 0.2rem;
}

body.dark-theme .value-label {
    color: #94a3b8;
}

.pipe-info-value span:last-child {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.group-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pressure-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.form-actions {
    margin-top: 2rem;
    text-align: center;
}

/* ========================================
   8. 按钮组件样式
   ======================================== */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    text-decoration: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-danger {
    background: var(--error-color);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* 按钮禁用状态 */
.btn-disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: #94a3b8 !important;
    color: #f1f5f9 !important;
}

.btn-disabled:hover {
    transform: none !important;
    box-shadow: none !important;
    background: #94a3b8 !important;
}

/* ========================================
   9. 表格组件样式
   ======================================== */
.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

/* 历史记录表格 */
#history-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
}

#history-table th,
#history-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

#history-table th {
    background: #f8fafc;
    font-weight: 600;
    color: var(--text-primary);
    position: sticky;
    top: 0;
}

body.dark-theme #history-table th {
    background: #334155;
}

#history-table tbody tr:hover {
    background: #f8fafc;
}

body.dark-theme #history-table tbody tr:hover {
    background: #334155;
}

/* 结果表格 */
.result-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
    margin-top: 0.5rem;
}

.result-table th,
.result-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.result-table th {
    background: #f8fafc;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

body.dark-theme .result-table th {
    background: #334155;
}

.result-table .result-value {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
}

body.dark-theme .result-table .result-value {
    color: #60a5fa;
}

.result-row-highlight {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

body.dark-theme .result-row-highlight {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
}

.result-row-highlight .result-value {
    color: var(--success-color);
    font-size: 1.3rem;
    font-weight: 700;
}

.result-table td i {
    margin-right: 0.5rem;
    width: 16px;
    color: var(--text-secondary);
}

/* 结果卡片网格布局 */
.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

/* 结果卡片样式 */
.result-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.result-card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.result-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.result-card:hover::before {
    opacity: 1;
}

/* 主要结果卡片（KV值） */
.result-card-primary {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    border: 2px solid var(--primary-color);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.1);
}

.result-card-primary::before {
    opacity: 1;
    height: 4px;
}

body.dark-theme .result-card-primary {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.2);
}

/* 卡片图标 */
.result-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.result-card-primary .result-card-icon {
    width: 56px;
    height: 56px;
    font-size: 1.4rem;
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

/* 卡片内容 */
.result-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.result-card-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-card-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.result-card-primary .result-card-value {
    font-size: 2rem;
    color: var(--primary-color);
}

body.dark-theme .result-card-primary .result-card-value {
    color: #60a5fa;
}

/* 查表结果表格 */
#lookup-results-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-secondary);
}

#lookup-results-table th,
#lookup-results-table td {
    padding: 0.75rem 1rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

#lookup-results-table th {
    background: #f8fafc;
    font-weight: 600;
    color: var(--text-primary);
    position: sticky;
    top: 0;
}

body.dark-theme #lookup-results-table th {
    background: #334155;
}

#lookup-results-table tbody tr:hover {
    background: #f8fafc;
}

body.dark-theme #lookup-results-table tbody tr:hover {
    background: #334155;
}

#lookup-results-table tbody tr:nth-child(even) {
    background: rgba(248, 250, 252, 0.5);
}

body.dark-theme #lookup-results-table tbody tr:nth-child(even) {
    background: rgba(51, 65, 85, 0.3);
}

#lookup-results-table td {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
}

/* 查表表格列宽 */
#lookup-results-table th:first-child,
#lookup-results-table td:first-child {
    width: 15%;
    font-weight: 500;
    color: var(--text-secondary);
}

#lookup-results-table th:nth-child(2),
#lookup-results-table td:nth-child(2) {
    width: 45%;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

#lookup-results-table th:last-child,
#lookup-results-table td:last-child {
    width: 40%;
    font-weight: 600;
    color: var(--success-color);
}

body.dark-theme #lookup-results-table td:last-child {
    color: var(--success-color);
}

#lookup-results-table th {
    color: var(--text-primary) !important;
}

.no-data {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    padding: 2rem !important;
}

/* ========================================
   10. 触摸滑动输入框样式
   ======================================== */
.touch-input-container {
    position: relative;
    width: 100%;
}

.touch-input-container input {
    width: 100%;
    touch-action: none;
    user-select: none;
    cursor: pointer;
}

.touch-input-container.keyboard-active input[type="number"] {
    cursor: text;
    user-select: text;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

.touch-input-container.dragging input {
    background: linear-gradient(90deg, var(--primary-color), #1d4ed8);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
    animation: slideGlow 0.6s ease-out;
}

.touch-feedback {
    position: absolute;
    top: 50%;
    right: 10px;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--text-secondary);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.touch-input-container.dragging .touch-feedback {
    opacity: 1;
    color: white;
}

.touch-input-container.keyboard-active .touch-feedback {
    opacity: 0;
}

.touch-hint {
    position: absolute;
    bottom: -25px;
    left: 0;
    right: 0;
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    opacity: 0;
    transform: scale(0.9);
    transition: all 0.3s ease;
    pointer-events: none;
    white-space: nowrap;
}

.touch-input-container.show-hint .touch-hint {
    opacity: 1;
    transform: scale(1);
}

.touch-input-container.keyboard-active .touch-hint {
    color: var(--primary-color);
    opacity: 1;
}

.touch-input-container.dragging {
    z-index: 10;
}

.touch-input-container.dragging input[type="number"] {
    background-color: #f8f9fa;
    border-color: var(--primary-color);
}

body.dark-theme .touch-input-container.dragging input[type="number"] {
    background-color: #343a40;
    border-color: var(--primary-color);
}

/* ========================================
   11. 数据验证样式
   ======================================== */
.input-error {
    border-color: var(--error-color) !important;
    background-color: rgba(239, 68, 68, 0.05) !important;
    animation: shake 0.3s ease-in-out;
}

.input-error:focus {
    border-color: var(--error-color) !important;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
}

.validation-error {
    display: none;
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    padding: 0.25rem 0.5rem;
    background-color: rgba(239, 68, 68, 0.1);
    border-radius: 4px;
    border-left: 3px solid var(--error-color);
    animation: slideDown 0.3s ease-out;
}

body.dark-theme .input-error {
    background-color: rgba(239, 68, 68, 0.1) !important;
    border-color: #f87171 !important;
}

body.dark-theme .validation-error {
    color: #fca5a5;
    background-color: rgba(239, 68, 68, 0.15);
    border-left-color: #f87171;
}

/* ========================================
   12. 分页控件样式
   ======================================== */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    flex-wrap: wrap;
    gap: 1rem;
}

.pagination-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pagination-controls .btn {
    min-width: 40px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.pagination-controls .btn:hover:not(:disabled) {
    background: #e2e8f0;
}

body.dark-theme .pagination-controls .btn:hover:not(:disabled) {
    background: #475569;
}

.pagination-controls .btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: var(--bg-secondary);
}

.pagination-controls .btn:disabled:hover {
    transform: none;
}

.page-info {
    margin: 0 1rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
}

.page-size-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.page-size-selector label {
    white-space: nowrap;
}

.page-size-selector select {
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9rem;
    min-width: 80px;
}

.page-size-selector select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

/* ========================================
   13. 查表功能样式
   ======================================== */
.table-title {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 5px;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.table-close-btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-right: 10px;
}

.table-close-btn:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.table-close-btn i {
    font-size: 0.75rem;
}

.lookup-info {
    margin: 0.5rem 0 1rem 0;
    padding: 0.5rem 0.75rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 0.375rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.lookup-info i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.lookup-loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.lookup-loading i {
    animation: spin 1s linear infinite;
    margin-right: 0.5rem;
}

#lookup-results-container .table-container {
    max-height: 400px;
    overflow-y: auto;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

#lookup-results-table {
    border-radius: var(--border-radius);
    overflow: hidden;
}

#lookup-results-table thead tr {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

body.dark-theme #lookup-results-table thead tr {
    background: linear-gradient(135deg, #334155 0%, #1e293b 100%);
}

#lookup-results-table tbody tr:nth-child(10n) {
    border-bottom: 2px solid var(--border-color);
}

#lookup-results-table tbody tr:nth-child(10n) td {
    padding-bottom: 0.85rem;
}

#lookup-results-table tbody tr:nth-child(10n+1) td {
    padding-top: 0.85rem;
}

/* ========================================
   14. 动画效果
   ======================================== */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideGlow {
    0% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4); }
    50% { box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.2); }
    100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0); }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ========================================
   15. 响应式设计
   ======================================== */

/* 中等屏幕 */
@media (max-width: 768px) {
    .nav-right {
        gap: 0.5rem;
    }

    .theme-toggle {
        width: 36px;
        height: 36px;
    }

    #main-content {
        margin-top: 55px;
        margin-bottom: 50px;
        padding: 1rem 0;
    }

    .container {
        padding: 0 1rem;
    }

    .card-body {
        padding: 1.5rem;
    }

    .pressure-inputs {
        grid-template-columns: 1fr 1fr;
        gap: 0.8rem;
    }

    /* 管径信息显示组响应式样式 */
    .pipe-info-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }

    .pipe-info-item {
        padding: 0.8rem;
    }

    .pipe-info-values {
        flex-direction: column;
        gap: 0.4rem;
    }

    .pipe-info-value {
        padding: 0.4rem;
        text-align: left;
    }

    .value-label {
        display: inline;
        margin-right: 0.5rem;
        margin-bottom: 0;
    }

    .table-container {
        font-size: 0.875rem;
    }

    #history-table th,
    #history-table td {
        padding: 0.6rem 0.8rem;
    }

    .result-table th,
    .result-table td {
        padding: 0.8rem 0.6rem;
    }

    .btn {
        min-width: 120px;
        max-width: 300px;
    }

    .form-group input[type="number"] {
        font-size: 1rem;
        padding: 0.8rem 1rem;
        min-height: 48px;
    }

    .touch-feedback {
        right: 12px;
        font-size: 0.9rem;
    }

    .touch-hint {
        font-size: 0.8rem;
        text-align: center;
    }

    .status-container {
        flex-direction: column;
        gap: 0.5rem;
        padding: 8px 15px;
    }

    .status-left,
    .status-right {
        gap: 0.8rem;
    }

    .status-item {
        font-size: 0.75rem;
    }

    .status-center {
        order: -1;
    }

    .pagination-container {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .pagination-controls {
        justify-content: center;
    }

    .pagination-info,
    .page-size-selector {
        text-align: center;
        justify-content: center;
    }

    .page-info {
        margin: 0 0.5rem;
        font-size: 0.9rem;
    }

    .pagination-controls .btn {
        min-width: 36px;
        height: 32px;
    }

    #lookup-results-container .table-container {
        max-height: 300px;
    }

    #lookup-results-table th,
    #lookup-results-table td {
        padding: 0.5rem;
        font-size: 0.85rem;
    }

    .table-title {
        font-size: 1rem;
    }

    .lookup-info {
        padding: 0.5rem;
        font-size: 0.8rem;
    }

    .validation-error {
        font-size: 0.8rem;
        padding: 0.2rem 0.4rem;
    }

    /* 结果组响应式样式 */
    .result-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 1rem;
    }

    .result-card {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }

    .result-card-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .result-card-primary .result-card-icon {
        width: 48px;
        height: 48px;
        font-size: 1.2rem;
    }

    .result-card-content {
        gap: 0.25rem;
    }

    .result-card-label {
        font-size: 0.8rem;
    }

    .result-card-value {
        font-size: 1.2rem;
    }

    .result-card-primary .result-card-value {
        font-size: 1.6rem;
    }
}

/* 小屏幕 */
@media (max-width: 480px) {
    .card-header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .card-body {
        padding: 1rem;
    }

    .btn {
        min-width: 120px;
        max-width: 280px;
        justify-content: center;
    }

    .pressure-inputs {
        grid-template-columns: 1fr;
    }

    /* 管径信息显示组小屏幕样式 */
    .pipe-info-group {
        padding: 1rem;
        margin-bottom: 1rem;
    }

    .pipe-info-grid {
        grid-template-columns: 1fr;
        gap: 0.6rem;
    }

    .pipe-info-item {
        padding: 0.6rem;
    }

    .pipe-info-label {
        font-size: 0.8rem;
        margin-bottom: 0.4rem;
    }

    .pipe-info-values {
        flex-direction: column;
        gap: 0.3rem;
    }

    .pipe-info-value {
        padding: 0.3rem;
        font-size: 0.85rem;
    }

    .value-label {
        font-size: 0.75rem;
    }

    /* 结果组小屏幕样式 */
    .result-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.8rem;
    }

    .result-card {
        padding: 0.8rem;
    }

    .result-card-icon {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }

    .result-card-primary .result-card-icon {
        width: 42px;
        height: 42px;
        font-size: 1.1rem;
    }

    .result-card-label {
        font-size: 0.75rem;
    }

    .result-card-value {
        font-size: 1.1rem;
    }

    .result-card-primary .result-card-value {
        font-size: 1.4rem;
    }
}

/* 超小屏幕优化 */
@media screen and (max-width: 480px) {
    body {
        font-size: 14px;
        line-height: 1.4;
    }

    .container {
        padding: 0 8px;
    }

    .navbar {
        padding: 0.25rem 0;
    }

    .nav-container {
        padding: 0 12px;
    }

    .logo-text {
        font-size: 1.1rem;
    }

    #main-content {
        margin-top: 50px;
        margin-bottom: 45px;
    }

    .card {
        margin-bottom: 1rem;
        border-radius: var(--border-radius);
    }

    .card-header {
        padding: 0.75rem 1rem;
    }

    .card-title {
        font-size: 1.1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .form-group {
        margin-bottom: 0.8rem;
    }

    .form-group label {
        margin-bottom: 0.3rem;
        font-size: 0.9rem;
    }

    .form-group input,
    .form-group select {
        padding: 0.6rem 0.8rem;
        font-size: 0.95rem;
        min-height: 42px;
    }

    .pressure-group {
        padding: 0.8rem;
        margin-bottom: 0.8rem;
    }

    .group-title {
        font-size: 1rem;
        margin-bottom: 0.6rem;
    }

    .pressure-inputs {
        gap: 0.6rem;
    }

    .btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.95rem;
        min-width: 100px;
        max-width: 250px;
    }

    .form-actions {
        margin-top: 1rem;
        display: flex;
        justify-content: center;
    }

    .table-container {
        font-size: 0.8rem;
    }

    .result-table th,
    .result-table td {
        padding: 0.5rem 0.6rem;
    }

    #history-table th,
    #history-table td {
        padding: 0.4rem 0.5rem;
    }

    .status-container {
        padding: 6px 12px;
        font-size: 0.75rem;
    }

    .status-item {
        font-size: 0.7rem;
    }
}

/* 极小屏幕进一步优化 */
@media screen and (max-width: 360px) {
    body {
        font-size: 13px;
        line-height: 1.3;
    }

    .container {
        padding: 0 6px;
    }

    #main-content {
        margin-top: 45px;
        margin-bottom: 40px;
    }

    .card {
        margin-bottom: 0.8rem;
    }

    .card-header {
        padding: 0.6rem 0.8rem;
    }

    .card-body {
        padding: 0.8rem;
    }

    .form-group {
        margin-bottom: 0.6rem;
    }

    .pressure-group {
        padding: 0.6rem;
        margin-bottom: 0.6rem;
    }

    .pressure-inputs {
        gap: 0.4rem;
        grid-template-columns: 1fr 1fr 1fr;
    }

    .form-group label {
        margin-bottom: 0.2rem;
        font-size: 0.85rem;
    }

    .form-group input,
    .form-group select {
        padding: 0.5rem 0.6rem;
        font-size: 0.9rem;
        min-height: 38px;
    }

    .status-container {
        padding: 4px 8px;
        font-size: 0.7rem;
    }

    /* 结果组极小屏幕样式 */
    .result-grid {
        grid-template-columns: 1fr;
        gap: 0.6rem;
    }

    .result-card {
        padding: 0.6rem;
        flex-direction: row;
        text-align: left;
    }

    .result-card-icon {
        width: 32px;
        height: 32px;
        font-size: 0.8rem;
    }

    .result-card-primary .result-card-icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    .result-card-label {
        font-size: 0.7rem;
    }

    .result-card-value {
        font-size: 1rem;
    }

    .result-card-primary .result-card-value {
        font-size: 1.2rem;
    }
}