/**
 * 电线电缆检测系统 - 主样式表
 */

/* ==================== 全局样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --light-color: #f8fafc;
    --dark-color: #1e293b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 
                 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #ffffff;
}

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

/* ==================== 导航栏 ==================== */
.navbar {
    background-color: #ffffff;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-brand i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: var(--dark-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    padding: 8px 15px;
    border-radius: 6px;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    background-color: var(--light-color);
}

/* ==================== 按钮 ==================== */
.btn {
    display: inline-block;
    padding: 10px 24px;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: #ffffff;
}

.btn-secondary:hover {
    background-color: #475569;
}

.btn-success {
    background-color: var(--success-color);
    color: #ffffff;
}

.btn-danger {
    background-color: var(--danger-color);
    color: #ffffff;
}

.btn-warning {
    background-color: var(--warning-color);
    color: #ffffff;
}

.btn-info {
    background-color: var(--info-color);
    color: #ffffff;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.875rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* ==================== 主横幅 ==================== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    padding: 100px 20px;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== 快速查询 ==================== */
.quick-query {
    padding: 60px 20px;
    background-color: var(--light-color);
}

.quick-query h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.subtitle {
    text-align: center;
    color: var(--secondary-color);
    margin-bottom: 40px;
}

.query-form {
    max-width: 700px;
    margin: 0 auto;
}

.search-box {
    display: flex;
    gap: 10px;
    background-color: #ffffff;
    padding: 8px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.search-box input {
    flex: 1;
    padding: 14px 20px;
    border: 2px solid transparent;
    border-radius: 8px;
    font-size: 1rem;
    outline: none;
}

.search-box input:focus {
    border-color: var(--primary-color);
}

/* ==================== 特色功能 ==================== */
.features {
    padding: 80px 20px;
}

.features h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 60px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-item {
    text-align: center;
    padding: 30px;
    border-radius: 12px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 2rem;
}

.feature-item h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.feature-item p {
    color: var(--secondary-color);
    line-height: 1.8;
}

/* ==================== 服务范围 ==================== */
.services {
    padding: 80px 20px;
    background-color: var(--light-color);
}

.services h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 60px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: #ffffff;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.service-card p {
    color: var(--secondary-color);
    line-height: 1.8;
}

/* ==================== 统计数据 ==================== */
.stats {
    padding: 80px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ==================== 表单 ==================== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-color);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-check {
    display: flex;
    align-items: center;
}

.form-check input {
    margin-right: 8px;
}

.required {
    color: var(--danger-color);
}

.form-text {
    display: block;
    margin-top: 5px;
    font-size: 0.875rem;
    color: var(--secondary-color);
}

/* ==================== 查询结果 ==================== */
.result-card {
    background-color: #ffffff;
    border-radius: 12px;
    padding: 40px;
    margin-top: 30px;
    box-shadow: var(--shadow-lg);
}

.result-card.error {
    border-left: 4px solid var(--danger-color);
}

.result-card.success {
    border-left: 4px solid var(--success-color);
}

.result-icon {
    text-align: center;
    font-size: 4rem;
    margin-bottom: 20px;
}

.result-icon i {
    color: var(--danger-color);
}

.result-card h3 {
    text-align: center;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.report-header {
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 20px;
    margin-bottom: 30px;
    position: relative;
}

.report-conclusion {
    position: absolute;
    top: 0;
    right: 0;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 1.25rem;
    font-weight: 700;
}

.report-conclusion.success {
    background-color: #d1fae5;
    color: #065f46;
}

.report-conclusion.danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.report-conclusion i {
    margin-right: 8px;
}

.report-details h4 {
    margin: 30px 0 15px;
    color: var(--dark-color);
    font-size: 1.25rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.info-item {
    padding: 12px;
    background-color: var(--light-color);
    border-radius: 8px;
}

.info-item label {
    font-weight: 600;
    color: var(--secondary-color);
    margin-right: 8px;
}

/* ==================== 表格 ==================== */
.table-responsive {
    overflow-x: auto;
    margin: 20px 0;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #ffffff;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: var(--light-color);
    font-weight: 600;
    color: var(--dark-color);
}

.data-table tr:hover {
    background-color: var(--light-color);
}

/* ==================== 徽章 ==================== */
.badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 6px;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-info {
    background-color: #dbeafe;
    color: #1e40af;
}

/* ==================== 页脚 ==================== */
.footer {
    background-color: var(--dark-color);
    color: #ffffff;
    padding: 60px 20px 20px;
    margin-top: 80px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.footer-section p,
.footer-section li {
    color: #cbd5e1;
    margin-bottom: 10px;
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #ffffff;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #94a3b8;
}

/* ==================== 登录页面 ==================== */
.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-card {
    background-color: #ffffff;
    border-radius: 16px;
    padding: 50px 40px;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-header i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.login-header h2 {
    font-size: 1.75rem;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.login-header p {
    color: var(--secondary-color);
}

.login-form .form-group {
    margin-bottom: 25px;
}

.login-footer {
    text-align: center;
    margin-top: 30px;
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}

.login-footer a:hover {
    color: #1d4ed8;
}

.login-tips {
    margin-top: 20px;
    padding: 15px;
    background-color: var(--light-color);
    border-radius: 8px;
    text-align: center;
}

/* ==================== 页面标题 ==================== */
.page-header-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    padding: 60px 20px;
    text-align: center;
}

.page-header-section h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.page-header-section p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ==================== 查询页面 ==================== */
.query-section {
    padding: 60px 20px;
    min-height: calc(100vh - 400px);
}

.page-header {
    text-align: center;
    margin-bottom: 50px;
}

.page-header h1 {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.page-header p {
    color: var(--secondary-color);
}

.query-card {
    max-width: 800px;
    margin: 0 auto;
    background-color: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.query-form-main .form-group {
    margin-bottom: 25px;
}

.query-tips {
    margin-top: 40px;
    padding: 25px;
    background-color: var(--light-color);
    border-radius: 8px;
    border-left: 4px solid var(--info-color);
}

.query-tips h4 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.query-tips ul {
    list-style-position: inside;
    color: var(--secondary-color);
    line-height: 2;
}

.loading {
    text-align: center;
    padding: 40px;
    font-size: 1.2rem;
    color: var(--secondary-color);
}

.loading i {
    margin-right: 10px;
}

/* ==================== 关于我们页面 ==================== */
.about-section {
    padding: 60px 20px;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
    line-height: 2;
}

.about-content h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--dark-color);
}

.about-content p {
    margin-bottom: 20px;
    color: var(--secondary-color);
    text-align: justify;
}

.certifications {
    padding: 60px 20px;
    background-color: var(--light-color);
}

.certifications h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.cert-item {
    text-align: center;
    padding: 30px;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.cert-item i {
    font-size: 3rem;
    color: var(--warning-color);
    margin-bottom: 15px;
}

.cert-item h3 {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.cert-item p {
    color: var(--secondary-color);
}

.capabilities {
    padding: 60px 20px;
}

.capabilities h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
}

.capability-list {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.capability-item {
    padding: 25px;
    background-color: var(--light-color);
    border-radius: 12px;
    border-left: 4px solid var(--success-color);
}

.capability-item h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.capability-item h3 i {
    color: var(--success-color);
    margin-right: 8px;
}

.capability-item p {
    color: var(--secondary-color);
    line-height: 1.8;
}

.contact-section {
    padding: 60px 20px;
    background-color: var(--light-color);
}

.contact-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 50px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    text-align: center;
    padding: 30px;
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.contact-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 1.8rem;
}

.contact-item h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.contact-item p {
    color: var(--secondary-color);
    margin-bottom: 8px;
}

/* ==================== 工具类 ==================== */
.text-center {
    text-align: center;
}

.text-muted {
    color: var(--secondary-color);
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 10px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .feature-grid,
    .service-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .report-conclusion {
        position: static;
        margin-bottom: 20px;
        display: inline-block;
    }
}

/* ==================== 消息提示 ==================== */
.message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    animation: slideIn 0.3s ease-out;
}

.message.success {
    background-color: var(--success-color);
    color: #ffffff;
}

.message.error {
    background-color: var(--danger-color);
    color: #ffffff;
}

.message.warning {
    background-color: var(--warning-color);
    color: #ffffff;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}