/**
 * 主样式表
 * 武汉婚外情调查公司
 * 简约大气风格
 */

/* ==================== 变量定义 ==================== */
:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --highlight-color: #e94560;
    --text-color: #333;
    --text-light: #666;
    --text-lighter: #999;
    --bg-color: #fff;
    --bg-light: #f5f6fa;
    --border-color: #e1e5eb;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s ease;
    --radius: 8px;
    --radius-lg: 12px;
}

/* ==================== 通用类 ==================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.section-title p {
    font-size: 1rem;
    color: var(--text-light);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary-color);
    color: #fff;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

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

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

.btn-highlight {
    background: var(--highlight-color);
}

.btn-highlight:hover {
    background: #d03050;
}

/* ==================== 头部导航 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
}

.logo-slogan {
    font-size: 0.75rem;
    color: var(--text-light);
}

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

.nav-list a {
    font-size: 0.95rem;
    color: var(--text-color);
    position: relative;
    padding: 5px 0;
    transition: var(--transition);
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--highlight-color);
    transition: var(--transition);
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--highlight-color);
}

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

.header-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 500;
}

.header-phone .phone-icon {
    font-size: 1.2rem;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

/* ==================== Banner ==================== */
.banner {
    margin-top: 70px;
    height: 500px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--accent-color) 100%);
}

.banner-slider {
    height: 100%;
    position: relative;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.banner-slide.active {
    opacity: 1;
}

.banner-content {
    text-align: center;
    color: #fff;
    max-width: 800px;
    padding: 0 20px;
}

.banner-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.banner-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

.banner-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

.banner-dot.active {
    background: #fff;
    transform: scale(1.2);
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: var(--highlight-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #fff;
}

.service-card h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.8;
}

.service-card .btn {
    margin-top: 20px;
    padding: 10px 25px;
    font-size: 0.9rem;
}

/* ==================== 关于我们 ==================== */
.about-intro {
    display: flex;
    gap: 60px;
    align-items: center;
}

.about-image {
    flex: 0 0 400px;
    height: 350px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 4rem;
}

.about-content h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 25px;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.feature-item span {
    font-size: 1.5rem;
}

.feature-item strong {
    color: var(--primary-color);
}

/* ==================== 新闻列表 ==================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.news-card {
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.news-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 3rem;
}

.news-content {
    padding: 25px;
}

.news-category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-light);
    color: var(--highlight-color);
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: 15px;
}

.news-title {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-title:hover {
    color: var(--highlight-color);
}

.news-meta {
    display: flex;
    justify-content: space-between;
    color: var(--text-lighter);
    font-size: 0.85rem;
    margin-top: 15px;
}

/* ==================== 案例展示 ==================== */
.cases-section {
    background: var(--bg-light);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.case-card {
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.case-image {
    height: 180px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 2.5rem;
}

.case-content {
    padding: 25px;
}

.case-type {
    display: inline-block;
    padding: 4px 12px;
    background: var(--highlight-color);
    color: #fff;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-bottom: 15px;
}

.case-title {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.case-result {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ==================== 联系我们 ==================== */
.contact-section {
    background: var(--primary-color);
    color: #fff;
}

.contact-section .section-title h2 {
    color: #fff;
}

.contact-section .section-title p {
    color: rgba(255, 255, 255, 0.7);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-item .icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 5px;
}

.contact-item p {
    color: rgba(255, 255, 255, 0.8);
}

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    color: #fff;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--highlight-color);
    background: rgba(255, 255, 255, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.contact-form .btn {
    width: 100%;
    padding: 15px;
}

/* ==================== 面包屑 ==================== */
.breadcrumb {
    padding: 20px 0;
    font-size: 0.9rem;
    color: var(--text-light);
}

.breadcrumb a {
    color: var(--primary-color);
}

.breadcrumb a:hover {
    color: var(--highlight-color);
}

.breadcrumb .separator {
    margin: 0 10px;
}

/* ==================== 分页 ==================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 50px;
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.pagination .current {
    background: var(--highlight-color);
    color: #fff;
    border-color: var(--highlight-color);
}

.pagination .disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination .ellipsis {
    border: none;
    background: transparent;
}

/* ==================== 详情页 ==================== */
.detail-section {
    padding-top: 100px;
}

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

.detail-header h1 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.detail-meta {
    color: var(--text-lighter);
    font-size: 0.9rem;
}

.detail-content {
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.detail-content h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 30px 0 15px;
}

.detail-content p {
    margin-bottom: 15px;
}

.detail-content ul,
.detail-content ol {
    margin: 15px 0;
    padding-left: 25px;
}

.detail-content li {
    margin-bottom: 10px;
    list-style: decimal;
}

/* ==================== 底部 ==================== */
.footer {
    background: var(--primary-color);
    color: #fff;
    padding-top: 60px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer h3 {
    font-size: 1.1rem;
    margin-bottom: 25px;
    position: relative;
}

.footer h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--highlight-color);
}

.footer-about p,
.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 10px;
}

.footer-links ul,
.footer-services ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a,
.footer-services a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-links a:hover,
.footer-services a:hover {
    color: var(--highlight-color);
    padding-left: 5px;
}

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact span {
    font-size: 1.1rem;
}

.footer-bottom {
    background: rgba(0, 0, 0, 0.2);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

/* ==================== 在线客服 ==================== */
.online-service {
    position: fixed;
    right: 20px;
    bottom: 80px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 999;
}

.service-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--primary-color);
    color: #fff;
    border-radius: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-item:hover {
    background: var(--highlight-color);
    transform: translateX(-5px);
}

.service-icon {
    font-size: 1.2rem;
}

/* ==================== 服务详情 ==================== */
.service-detail-section {
    padding-top: 100px;
    padding-bottom: 80px;
}

.service-detail-header {
    text-align: center;
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: #fff;
    margin-bottom: 50px;
    border-radius: var(--radius-lg);
}

.service-detail-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.service-detail-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

.service-detail-content {
    max-width: 900px;
    margin: 0 auto;
}

.service-detail-content h2 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 40px 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--highlight-color);
}

.service-detail-content ul {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.service-detail-content li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
}

.service-detail-content li::before {
    content: '✓';
    color: var(--highlight-color);
    font-weight: bold;
}

.price-info {
    background: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    margin-top: 40px;
}

.price-info h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.price-info .price {
    font-size: 2rem;
    color: var(--highlight-color);
    font-weight: 600;
}

/* ==================== 关于页面 ==================== */
.about-page {
    padding-top: 100px;
}

.about-banner {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    padding: 60px 0;
    color: #fff;
    text-align: center;
}

.about-banner h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.about-banner p {
    opacity: 0.9;
}

.about-content-section {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.about-item {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

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

.about-item .icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

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

.about-item p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.team-section {
    background: var(--bg-light);
    padding: 80px 0;
}

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

.team-member {
    background: var(--bg-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-align: center;
    box-shadow: var(--shadow);
}

.team-avatar {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: #fff;
}

.team-info {
    padding: 25px;
}

.team-info h3 {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.team-info p {
    color: var(--highlight-color);
    font-size: 0.9rem;
}

.advantages-section {
    padding: 80px 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.advantage-item {
    text-align: center;
    padding: 40px 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.advantage-item:hover {
    border-color: var(--highlight-color);
    transform: translateY(-5px);
}

.advantage-item .number {
    width: 50px;
    height: 50px;
    background: var(--highlight-color);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0 auto 20px;
}

.advantage-item h4 {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.advantage-item p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ==================== 成功案例页面 ==================== */
.case-page {
    padding-top: 100px;
}

.case-page-header {
    text-align: center;
    padding: 60px 0;
    background: var(--bg-light);
}

.case-page-header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.case-page-header p {
    color: var(--text-light);
}

.case-list-section {
    padding: 80px 0;
}

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

.case-list-item {
    display: flex;
    gap: 25px;
    background: var(--bg-color);
    padding: 25px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.case-list-image {
    width: 200px;
    height: 150px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 3rem;
    flex-shrink: 0;
}

.case-list-content {
    flex: 1;
}

.case-list-content h3 {
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.case-list-content p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.case-list-result {
    display: inline-block;
    padding: 5px 15px;
    background: var(--highlight-color);
    color: #fff;
    border-radius: 20px;
    font-size: 0.85rem;
}

/* ==================== 表单验证样式 ==================== */
.form-error {
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 5px;
}

.form-success {
    color: #27ae60;
    font-size: 0.9rem;
    padding: 15px;
    background: rgba(39, 174, 96, 0.1);
    border-radius: var(--radius);
    margin-bottom: 20px;
}

/* ==================== 加载动画 ==================== */
.loading {
    text-align: center;
    padding: 50px;
}

.loading::after {
    content: '';
    display: inline-block;
    width: 30px;
    height: 30px;
    border: 3px solid var(--border-color);
    border-top-color: var(--highlight-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ==================== 空状态 ==================== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state .icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 10px;
}

.empty-state p {
    color: var(--text-lighter);
}