/**
 * 南昌调查公司 - 企业官网样式
 * 商务权威稳重风格
 */

/* ==================== CSS变量 ==================== */
:root {
    --primary-color: #1a365d;      /* 深蓝色 - 权威稳重 */
    --secondary-color: #2c5282;    /* 中蓝色 */
    --accent-color: #c9a227;       /* 金色 - 高端质感 */
    --text-dark: #1a202c;          /* 深灰文字 */
    --text-light: #718096;         /* 浅灰文字 */
    --bg-light: #f7fafc;           /* 浅灰背景 */
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --success-color: #38a169;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* ==================== 基础样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-color);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

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

/* ==================== 通用类 ==================== */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-title p {
    font-size: 18px;
    color: var(--text-light);
}

.section-title .en {
    font-size: 14px;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 3px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-white);
}

.btn-primary:hover {
    background-color: var(--secondary-color);
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: var(--accent-color);
    color: var(--bg-white);
}

.btn-secondary:hover {
    background-color: #b8921f;
    color: var(--bg-white);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--bg-white);
}

/* ==================== 顶部联系栏 ==================== */
.top-bar {
    background-color: var(--primary-color);
    color: var(--bg-white);
    padding: 8px 0;
    font-size: 14px;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar .phone i,
.top-bar .time i {
    margin-right: 5px;
}

/* ==================== 头部导航 ==================== */
.header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo .slogan {
    font-size: 12px;
    color: var(--accent-color);
    letter-spacing: 2px;
}

.main-nav ul {
    display: flex;
    gap: 40px;
}

.main-nav a {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-dark);
    padding: 5px 0;
    position: relative;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.main-nav a.active {
    color: var(--primary-color);
}

.header-phone .phone-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background-color: var(--accent-color);
    color: var(--bg-white);
    border-radius: 4px;
    font-weight: 600;
}

.header-phone .phone-btn:hover {
    background-color: #b8921f;
    color: var(--bg-white);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    z-index: 999;
}

.mobile-menu ul {
    padding: 20px;
}

.mobile-menu li {
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.mobile-menu a {
    display: block;
    font-size: 16px;
    font-weight: 500;
}

.mobile-menu a.active {
    color: var(--accent-color);
}

/* ==================== 轮播/首页Banner ==================== */
.banner {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--bg-white);
    padding: 120px 0;
    text-align: center;
}

.banner h2 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}

.banner p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.banner-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.banner .btn-primary {
    background-color: var(--accent-color);
}

.banner .btn-primary:hover {
    background-color: #b8921f;
}

.banner .btn-outline {
    border-color: var(--bg-white);
    color: var(--bg-white);
}

.banner .btn-outline:hover {
    background-color: var(--bg-white);
    color: var(--primary-color);
}

/* ==================== 服务优势 ==================== */
.features {
    background-color: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-item {
    background-color: var(--bg-white);
    padding: 40px 30px;
    text-align: center;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    font-size: 36px;
    color: var(--accent-color);
}

.feature-item h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.feature-item p {
    font-size: 14px;
    color: var(--text-light);
}

/* ==================== 关于简介 ==================== */
.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-intro .about-img {
    background-color: var(--bg-light);
    border-radius: 8px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
}

.about-intro .about-content h3 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-intro .about-content p {
    margin-bottom: 20px;
    color: var(--text-light);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background-color: var(--bg-light);
    border-radius: 8px;
}

.stat-item .number {
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-color);
}

.stat-item .label {
    font-size: 14px;
    color: var(--text-light);
}

/* ==================== 服务项目 ==================== */
.services-section {
    background-color: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.service-card {
    background-color: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    display: flex;
}

.service-card .service-icon {
    width: 120px;
    background-color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.service-card .service-icon i {
    font-size: 48px;
    color: var(--accent-color);
}

.service-card .service-content {
    padding: 30px;
}

.service-card h3 {
    font-size: 22px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.service-card p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.service-card .service-list {
    margin-bottom: 20px;
}

.service-card .service-list li {
    font-size: 14px;
    color: var(--text-light);
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
}

.service-card .service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-color);
}

/* ==================== 新闻列表 ==================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background-color: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.news-card .news-img {
    height: 200px;
    background-color: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border-color);
}

.news-card .news-content {
    padding: 25px;
}

.news-card .news-date {
    font-size: 13px;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.news-card h3 {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 15px;
    line-height: 1.5;
}

.news-card h3 a:hover {
    color: var(--accent-color);
}

.news-card p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.news-card .read-more {
    font-size: 14px;
    color: var(--primary-color);
    font-weight: 600;
}

.news-card .read-more:hover {
    color: var(--accent-color);
}

/* ==================== 联系我们 ==================== */
.contact-section {
    background-color: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    background-color: var(--primary-color);
    color: var(--bg-white);
    padding: 50px;
    border-radius: 8px;
}

.contact-info h3 {
    font-size: 28px;
    margin-bottom: 30px;
}

.contact-info .info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
}

.contact-info .info-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    flex-shrink: 0;
}

.contact-info .info-icon i {
    font-size: 18px;
    color: var(--accent-color);
}

.contact-info .info-text p {
    margin-bottom: 5px;
    opacity: 0.9;
}

.contact-form {
    background-color: var(--bg-white);
    padding: 50px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.contact-form h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group textarea {
    min-height: 120px;
}

/* ==================== 页面标题 ==================== */
.page-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--bg-white);
    padding: 60px 0;
    text-align: center;
}

.page-header h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 16px;
    opacity: 0.9;
}

.page-header .breadcrumb {
    margin-top: 20px;
    font-size: 14px;
}

.page-header .breadcrumb a {
    opacity: 0.8;
}

.page-header .breadcrumb a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.page-header .breadcrumb span {
    margin: 0 10px;
    opacity: 0.6;
}

/* ==================== 详情页 ==================== */
.article-content {
    background-color: var(--bg-white);
    padding: 60px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.article-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.article-header h1 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.article-header .meta {
    font-size: 14px;
    color: var(--text-light);
}

.article-header .meta span {
    margin: 0 15px;
}

.article-body {
    font-size: 16px;
    line-height: 2;
    color: var(--text-dark);
}

.article-body p {
    margin-bottom: 20px;
}

.article-body h3 {
    font-size: 22px;
    color: var(--primary-color);
    margin: 30px 0 15px;
}

.article-body ul {
    margin: 20px 0;
    padding-left: 25px;
}

.article-body li {
    margin-bottom: 10px;
    list-style-type: disc;
}

/* ==================== 底部联系 ==================== */
.footer-contact {
    background-color: var(--primary-color);
    color: var(--bg-white);
    padding: 60px 0;
}

.footer-contact h4 {
    font-size: 20px;
    margin-bottom: 25px;
    color: var(--accent-color);
}

.footer-contact .contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
}

.footer-contact .contact-item p,
.footer-contact .contact-item li {
    font-size: 14px;
    margin-bottom: 12px;
    opacity: 0.85;
}

.footer-contact .contact-item ul li a:hover {
    color: var(--accent-color);
}

.footer-contact .qr-placeholder {
    width: 120px;
    height: 120px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    opacity: 0.6;
}

/* ==================== 底部版权 ==================== */
.footer {
    background-color: #12274a;
    color: var(--bg-white);
    padding: 25px 0;
    text-align: center;
}

.footer-content p {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 5px;
}

.footer-content a {
    color: var(--accent-color);
}

.footer-content a:hover {
    text-decoration: underline;
}

/* ==================== 后台样式 ==================== */
.admin-wrapper {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 250px;
    background-color: var(--primary-color);
    color: var(--bg-white);
    padding: 20px 0;
    position: fixed;
    height: 100vh;
}

.admin-sidebar h2 {
    font-size: 20px;
    padding: 0 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 20px;
}

.admin-sidebar ul li a {
    display: block;
    padding: 12px 20px;
    font-size: 15px;
    transition: all 0.3s ease;
}

.admin-sidebar ul li a:hover,
.admin-sidebar ul li a.active {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--accent-color);
}

.admin-main {
    flex: 1;
    margin-left: 250px;
    padding: 30px;
    background-color: var(--bg-light);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.admin-header h1 {
    font-size: 24px;
    color: var(--primary-color);
}

.admin-card {
    background-color: var(--bg-white);
    border-radius: 8px;
    padding: 25px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

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

.admin-table th {
    background-color: var(--bg-light);
    font-weight: 600;
    color: var(--primary-color);
}

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

.admin-actions {
    display: flex;
    gap: 10px;
}

.admin-actions .btn-sm {
    padding: 5px 12px;
    font-size: 13px;
}

.badge {
    display: inline-block;
    padding: 3px 10px;
    font-size: 12px;
    border-radius: 20px;
}

.badge-success {
    background-color: #c6f6d5;
    color: #22543d;
}

.badge-warning {
    background-color: #fefcbf;
    color: #744210;
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-contact .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .main-nav,
    .header-phone {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .banner h2 {
        font-size: 32px;
    }
    
    .banner p {
        font-size: 16px;
    }
    
    .banner-btns {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid,
    .news-grid,
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .about-intro {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-contact .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .admin-sidebar {
        display: none;
    }
    
    .admin-main {
        margin-left: 0;
    }
    
    .admin-table {
        font-size: 14px;
    }
    
    .admin-table th,
    .admin-table td {
        padding: 10px 8px;
    }
}

/* ==================== 分页 ==================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    display: inline-block;
    padding: 8px 16px;
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.pagination a:hover {
    background-color: var(--primary-color);
    color: var(--bg-white);
    border-color: var(--primary-color);
}

.pagination .current {
    background-color: var(--primary-color);
    color: var(--bg-white);
    border-color: var(--primary-color);
}

/* ==================== 提示信息 ==================== */
.alert {
    padding: 15px 20px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.alert-success {
    background-color: #c6f6d5;
    color: #22543d;
    border: 1px solid #9ae6b4;
}

.alert-error {
    background-color: #fed7d7;
    color: #742a2a;
    border: 1px solid #fc8181;
}

/* ==================== 表单验证 ==================== */
.form-error {
    border-color: #e53e3e !important;
}

.error-message {
    color: #e53e3e;
    font-size: 12px;
    margin-top: 5px;
}

/* ==================== 关于我们页面特殊样式 ==================== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.team-card {
    background-color: var(--bg-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    text-align: center;
}

.team-card .team-img {
    width: 150px;
    height: 150px;
    margin: 30px auto 20px;
    background-color: var(--bg-light);
    border-radius: 50%;
    border: 3px solid var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.team-card .team-img i {
    font-size: 60px;
    color: var(--text-light);
}

.team-card h4 {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.team-card .position {
    font-size: 14px;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.team-card p {
    font-size: 14px;
    color: var(--text-light);
    padding: 0 20px 20px;
}

@media (max-width: 768px) {
    .team-grid {
        grid-template-columns: 1fr;
    }
}

/* ==================== 资质认证 ==================== */
.certifications {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.cert-item {
    background-color: var(--bg-light);
    padding: 30px 20px;
    text-align: center;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.cert-item i {
    font-size: 40px;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.cert-item h4 {
    font-size: 16px;
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .certifications {
        grid-template-columns: repeat(2, 1fr);
    }
}