/* 全局样式 */
:root {
    --primary-color: #1a365d;
    --secondary-color: #2d4a77;
    --accent-color: #f6ad55;
    --text-color: #2d3748;
    --light-bg: #f7fafc;
    --white: #ffffff;
    --gray: #718096;
    --success: #48bb78;
    --warning: #ed8936;
    --danger: #f56565;
    --border-radius: 12px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--light-bg);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

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

/* 导航栏 */
.navbar {
    background-color: var(--white);
    box-shadow: var(--box-shadow);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

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

.logo-icon {
    font-size: 32px;
}

.logo-text {
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-size: 16px;
    color: var(--text-color);
    transition: var(--transition);
    padding: 5px 0;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: var(--box-shadow);
    z-index: 999;
    padding: 20px;
}

.mobile-menu.active {
    display: block;
}

.mobile-link {
    display: block;
    padding: 15px 0;
    font-size: 16px;
    color: var(--text-color);
    border-bottom: 1px solid #e2e8f0;
    transition: var(--transition);
}

.mobile-link:hover,
.mobile-link.active {
    color: var(--primary-color);
    padding-left: 10px;
}

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 120px 0 60px;
    text-align: center;
}

.page-title {
    font-size: 36px;
    margin-bottom: 10px;
}

.page-desc {
    font-size: 18px;
    opacity: 0.9;
}

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.section-desc {
    font-size: 18px;
    color: var(--gray);
}

/* 主视觉区 */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 150px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 48px;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    animation: fadeInUp 1s ease 0.4s both;
}

/* 排名展示 */
.ranking-section {
    padding: 80px 0;
    background-color: var(--white);
}

.ranking-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.ranking-card {
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.ranking-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.ranking-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.ranking-year {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 10px;
}

.ranking-title {
    font-size: 20px;
    color: var(--text-color);
    margin-bottom: 15px;
}

.ranking-rank {
    font-size: 28px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.ranking-desc {
    font-size: 14px;
    color: var(--gray);
}

/* 业绩展示 */
.performance-section {
    padding: 80px 0;
    background-color: var(--light-bg);
}

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

.performance-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.performance-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.card-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.card-title {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 10px;
}

.card-value {
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.card-desc {
    font-size: 14px;
    color: var(--gray);
}

.section-more {
    text-align: center;
    margin-top: 50px;
}

/* 核心服务 */
.services-section {
    padding: 80px 0;
    background-color: var(--white);
}

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

.service-card {
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

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

.service-desc {
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 20px;
}

.service-link {
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.service-link:hover {
    color: var(--secondary-color);
}

/* 最新资讯 */
.articles-section {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.articles-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.article-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.article-image {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.article-content {
    padding: 25px;
}

.article-date {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 10px;
}

.article-category {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 12px;
    margin-bottom: 10px;
}

.article-title {
    font-size: 20px;
    color: var(--text-color);
    margin-bottom: 10px;
    line-height: 1.4;
}

.article-summary {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 15px;
    line-height: 1.6;
}

.article-link {
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.article-link:hover {
    color: var(--secondary-color);
}

/* 联系我们 */
.contact-section {
    padding: 80px 0;
    background-color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

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

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

.contact-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    background-color: var(--light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-details h4 {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 5px;
}

.contact-details p {
    font-size: 16px;
    color: var(--gray);
}

.contact-form {
    background-color: var(--light-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

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

.form-group label {
    display: block;
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

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

/* 底部 */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 15px;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-desc {
    font-size: 14px;
    opacity: 0.8;
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 18px;
    margin-bottom: 20px;
}

.footer-links a {
    display: block;
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    padding-left: 5px;
}

.footer-contact p {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    opacity: 0.6;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

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

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

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

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

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

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

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .page-title {
        font-size: 28px;
    }

    .section-title {
        font-size: 24px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

/* 大赛排名详情 */
.ranking-detail-section {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.ranking-detail-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.ranking-detail-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 50px 40px;
    text-align: center;
    box-shadow: var(--box-shadow);
}

.ranking-medal {
    font-size: 80px;
    margin-bottom: 20px;
}

.ranking-competition {
    font-size: 20px;
    color: var(--text-color);
    margin-bottom: 10px;
}

.ranking-result {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 30px;
}

.ranking-details {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 30px;
}

.ranking-detail-item {
    text-align: center;
}

.detail-label {
    display: block;
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 5px;
}

.detail-value {
    display: block;
    font-size: 18px;
    font-weight: bold;
    color: var(--text-color);
}

.ranking-desc {
    font-size: 16px;
    color: var(--text-color);
    line-height: 1.6;
}

/* 业绩数据 */
.performance-data-section {
    padding: 80px 0;
    background-color: var(--white);
}

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

.performance-data-card {
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.performance-data-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.data-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

.data-title {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 10px;
}

.data-value {
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.data-desc {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 10px;
}

.data-trend {
    font-size: 14px;
}

.trend-up {
    color: var(--success);
}

.trend-down {
    color: var(--danger);
}

/* 图表容器 */
.chart-section {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.chart-container {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--box-shadow);
}

.chart-placeholder {
    height: 400px;
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.chart-icon {
    font-size: 64px;
    opacity: 0.5;
}

.chart-text {
    font-size: 24px;
    color: var(--gray);
}

.chart-desc {
    font-size: 16px;
    color: var(--gray);
}

/* 客户评价 */
.testimonials-section {
    padding: 80px 0;
    background-color: var(--white);
}

.testimonials-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.testimonial-content {
    font-size: 16px;
    color: var(--text-color);
    line-height: 1.6;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    font-size: 32px;
    width: 50px;
    height: 50px;
    background-color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-name {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
}

.author-title {
    font-size: 14px;
    color: var(--gray);
}

/* 业务详情 */
.services-detail-section {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.services-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-detail-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--box-shadow);
}

.service-features {
    margin-top: 20px;
}

.service-features li {
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-color);
}

.service-features i {
    color: var(--success);
    margin-right: 8px;
}

/* 投资策略 */
.strategies-section {
    padding: 80px 0;
    background-color: var(--white);
}

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

.strategy-card {
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.strategy-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.strategy-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.strategy-title {
    font-size: 22px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.strategy-desc {
    font-size: 16px;
    color: var(--text-color);
}

/* 客户案例 */
.cases-section {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.cases-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.case-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--box-shadow);
}

.case-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    background-color: var(--light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-title {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 5px;
}

.case-desc {
    font-size: 14px;
    color: var(--gray);
}

/* 文章筛选 */
.articles-filter-section {
    padding: 30px 0;
    background-color: var(--white);
}

.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.filter-tab {
    padding: 10px 25px;
    border: 2px solid var(--primary-color);
    background-color: transparent;
    color: var(--primary-color);
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-tab:hover,
.filter-tab.active {
    background-color: var(--primary-color);
    color: var(--white);
}

/* 文章列表 */
.articles-list-section {
    padding: 50px 0 80px;
    background-color: var(--light-bg);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

/* 联系详情 */
.contact-detail-section {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.contact-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info-detail {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--box-shadow);
}

.contact-info-title {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.contact-info-desc {
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 30px;
    line-height: 1.6;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
    margin-bottom: 40px;
}

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

.contact-info-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    background-color: var(--light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-info-content h4 {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 5px;
}

.contact-info-content p {
    font-size: 16px;
    color: var(--gray);
}

.contact-qr {
    text-align: center;
}

.contact-qr h4 {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 15px;
}

.contact-qr p {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 20px;
}

.qr-placeholder {
    width: 200px;
    height: 200px;
    background-color: var(--light-bg);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin: 0 auto;
}

.qr-icon {
    font-size: 48px;
    opacity: 0.5;
}

.qr-text {
    font-size: 14px;
    color: var(--gray);
}

.contact-form-detail {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--box-shadow);
}

.contact-form-title {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.contact-form-desc {
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 30px;
}

/* 地图 */
.map-section {
    padding: 0 0 80px;
    background-color: var(--light-bg);
}

.map-placeholder {
    height: 400px;
    background-color: var(--white);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    box-shadow: var(--box-shadow);
}

.map-icon {
    font-size: 64px;
    opacity: 0.5;
}

.map-text {
    font-size: 24px;
    color: var(--gray);
}

/* 响应式设计 - 联系页面 */
@media (max-width: 768px) {
    .contact-detail-grid {
        grid-template-columns: 1fr;
    }
}