/* 全局样式 */
:root {
    --primary-color: #1e88e5;
    --secondary-color: #ff9100;
    --dark-color: #1a2035;
    --light-color: #f8f9fa;
    --gray-color: #7b809a;
    --success-color: #4caf50;
    --danger-color: #f44336;
    --border-radius: 8px;
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f5f7fa;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
    position: relative;
    display: inline-block;
}

.section-header h2:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background-color: var(--primary-color);
}

.section-header p {
    color: var(--gray-color);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background-color: #0d47a1;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(30, 136, 229, 0.3);
}

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

.btn-secondary:hover {
    background-color: #f57c00;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 145, 0, 0.3);
}

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

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

.btn-large {
    padding: 15px 32px;
    font-size: 1.1rem;
}

/* 头部样式 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.menu {
    display: flex;
}

.menu li {
    margin-left: 30px;
}

.menu a {
    font-weight: 500;
    color: var(--dark-color);
    position: relative;
}

.menu a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

.menu a:hover:after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 100%;
    height: 3px;
    background-color: var(--dark-color);
    border-radius: 3px;
    transition: var(--transition);
}

/* 英雄区域样式 */
.hero {
    padding-top: 150px;
    padding-bottom: 100px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e7ec 100%);
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    flex: 1;
    max-width: 550px;
}

.hero-content h2 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--gray-color);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.hero-image {
    flex: 1;
    text-align: right;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* 功能部分样式 */
.features {
    background-color: white;
}

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

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(30, 136, 229, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 24px;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.feature-card p {
    color: var(--gray-color);
}

/* 数据分析部分样式 */
.data-analysis {
    background-color: #f5f7fa;
}

.lottery-types {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
    justify-content: center;
}

.lottery-type {
    padding: 10px 20px;
    background-color: white;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.lottery-type.active {
    background-color: var(--primary-color);
    color: white;
}

.lottery-type:hover:not(.active) {
    background-color: #e9ecef;
}

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

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

.data-card h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.numbers {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
}

.number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #e9ecef;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.number.special {
    background-color: var(--secondary-color);
    color: white;
}

.draw-time {
    font-size: 0.9rem;
    color: var(--gray-color);
}

.hot-cold-chart {
    width: 100%;
}

/* 走势图表部分样式 */
.trend-charts {
    background-color: white;
}

.chart-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
    justify-content: center;
}

.tab {
    padding: 10px 20px;
    background-color: #f5f7fa;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

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

.tab:hover:not(.active) {
    background-color: #e9ecef;
}

.chart-display {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.chart-container {
    width: 100%;
    overflow-x: auto;
}

/* 最新资讯部分样式 */
.latest-articles {
    background-color: #f5f7fa;
}

.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

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

.article-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.article-image {
    height: 200px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.article-card:hover .article-image img {
    transform: scale(1.05);
}

.article-content {
    padding: 20px;
}

.article-date {
    font-size: 0.9rem;
    color: var(--gray-color);
    margin-bottom: 10px;
}

.article-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.article-content p {
    color: var(--gray-color);
    margin-bottom: 15px;
}

.read-more {
    color: var(--primary-color);
    font-weight: 500;
    display: inline-block;
}

.read-more:hover {
    color: #0d47a1;
}

.view-all {
    text-align: center;
}

/* 社区部分样式 */
.community {
    background-color: white;
}

.community-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.community-card {
    background-color: #f5f7fa;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
}

.community-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow);
}

.community-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(30, 136, 229, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.community-icon i {
    font-size: 28px;
    color: var(--primary-color);
}

.community-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.community-card p {
    color: var(--gray-color);
}

.community-cta {
    text-align: center;
}

/* 号召行动部分样式 */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0d47a1 100%);
    color: white;
    text-align: center;
    padding: 100px 0;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

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

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

/* 页脚样式 */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 80px 0 30px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-logo h2 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: white;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    flex: 2;
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-column {
    flex: 1;
    min-width: 150px;
}

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: white;
}

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: white;
    padding-left: 5px;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    section {
        padding: 60px 0;
    }
    
    .hero {
        padding-top: 120px;
    }

    .hero .container {
        flex-direction: column;
    }

    .hero-content {
        max-width: 100%;
        text-align: center;
        margin-bottom: 40px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-content h2 {
        font-size: 2.5rem;
    }

    .section-header h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    header .container {
        height: 70px;
    }

    .menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        flex-direction: column;
        background-color: white;
        padding: 40px 20px;
        transition: var(--transition);
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }

    .menu.active {
        left: 0;
    }

    .menu li {
        margin: 15px 0;
    }

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

    .hero-content h2 {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .feature-grid, 
    .data-display, 
    .article-grid, 
    .community-features {
        grid-template-columns: 1fr;
    }

    .lottery-types, 
    .chart-tabs {
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 10px;
    }

    .feature-card, 
    .data-card, 
    .article-card, 
    .community-card {
        padding: 20px;
    }

    .footer-content {
        flex-direction: column;
        gap: 30px;
    }

    .footer-links {
        flex-direction: column;
    }
}

@media (max-width: 576px) {
    .hero-content h2 {
        font-size: 1.8rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .btn {
        width: 100%;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .section-header p {
        font-size: 1rem;
    }

    .cta-content h2 {
        font-size: 1.8rem;
    }

    .cta-content p {
        font-size: 1rem;
    }
}