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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ====== 容器和布局 ====== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ====== 导航栏样式 ====== */
.navbar {
    background-color: #1a237e;
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    background-color: rgba(255, 255, 255, 0.1);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
}

/* ====== 英雄区域 ====== */
.hero {
    background: linear-gradient(135deg, #4A90E2 0%, #357ABD 100%);
    color: white;
    padding: 4rem 0;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    flex-wrap: wrap;
}

.hero-text {
    flex: 1;
    min-width: 300px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: white;
}

.hero h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
    font-weight: 400;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn-primary {
    display: inline-block;
    background-color: #4CAF50;
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background-color: #45a049;
}

.btn-secondary {
    display: inline-block;
    background-color: transparent;
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    border: 2px solid white;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: white;
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 5px;
}

.hero-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* ====== 核心功能区域 ====== */
.core-features {
    padding: 5rem 0;
    background-color: white;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: #1a237e;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: transform 0.3s;
    border: 1px solid #eee;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    margin-bottom: 1.5rem;
}

.feature-icon img {
    width: 50px;
    height: 50px;
}

.feature-card h3 {
    color: #1a237e;
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* ====== 平台支持区域 ====== */
.platform-support {
    padding: 5rem 0;
    background-color: #f8f9fa;
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.platform-item {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.platform-item:hover {
    transform: translateY(-5px);
}

.platform-icon {
    margin-bottom: 1.5rem;
}

.platform-icon img {
    width: 60px;
    height: 60px;
}

.platform-item h3 {
    color: #1a237e;
    margin-bottom: 0.5rem;
}

.platform-item p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.platform-link {
    display: inline-block;
    color: #4A90E2;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
}

.platform-link:hover {
    text-decoration: underline;
}

/* ====== 最新动态区域 ====== */
.latest-news {
    padding: 5rem 0;
    background-color: white;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.view-all {
    color: #4A90E2;
    text-decoration: none;
    font-weight: bold;
}

.view-all:hover {
    text-decoration: underline;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.news-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

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

.news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

.news-category {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: #4CAF50;
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8rem;
    font-weight: bold;
}

.news-content {
    padding: 1.5rem;
}

.news-card h3 {
    margin-bottom: 0.8rem;
}

.news-card h3 a {
    color: #1a237e;
    text-decoration: none;
    font-size: 1.2rem;
}

.news-card h3 a:hover {
    text-decoration: underline;
}

.news-excerpt {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    color: #888;
    font-size: 0.9rem;
}

/* ====== DeFi特色区域 ====== */
.defi-highlight {
    padding: 5rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.defi-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
    flex-wrap: wrap;
}

.defi-text {
    flex: 1;
    min-width: 300px;
}

.defi-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: white;
}

.defi-text p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.8;
}

.defi-features {
    list-style: none;
    margin-bottom: 2rem;
}

.defi-features li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.8rem;
}

.defi-features li:before {
    content: "✓";
    color: #4CAF50;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.defi-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.defi-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* ====== 下载引导区域 ====== */
.download-cta {
    padding: 5rem 0;
    background-color: #f8f9fa;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #1a237e;
}

.cta-content p {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.security-note {
    color: #4CAF50;
    font-weight: bold;
    font-size: 1.1rem;
}

/* ====== 页脚样式 ====== */
footer {
    background-color: #1a237e;
    color: white;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

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

.footer-links a:hover {
    color: white;
    text-decoration: underline;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1rem;
}

.footer-logo img {
    width: 50px;
    height: 50px;
    border-radius: 8px;
}

.footer-logo span {
    font-size: 1.3rem;
    font-weight: bold;
    color: white;
}

.footer-description {
    color: #ccc;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: background-color 0.3s;
}

.social-links a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.social-links img {
    width: 20px;
    height: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #aaa;
    font-size: 0.9rem;
}

.disclaimer {
    color: #ff9800;
    font-size: 0.8rem;
    margin-top: 0.5rem;
}

/* ====== 响应式设计 ====== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #1a237e;
        padding: 1rem;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .hero-content,
    .defi-content {
        flex-direction: column;
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .features-grid,
    .platforms-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons,
    .cta-buttons {
        justify-content: center;
    }
    
    .section-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* ====== DeFi页面特定样式 ====== */
.page-header {
    text-align: center;
    padding: 3rem 0;
}

.page-header h1 {
    font-size: 2.5rem;
    color: #1a237e;
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.2rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.defi-intro {
    padding: 2rem 0;
}

.defi-benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.benefit-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.benefit-card h3 {
    color: #1a237e;
    margin-bottom: 0.8rem;
}

.defi-categories {
    padding: 3rem 0;
    background-color: #f8f9fa;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.category-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.category-icon {
    margin-bottom: 1.5rem;
}

.category-card h3 {
    color: #1a237e;
    margin-bottom: 0.5rem;
}

.category-card p {
    color: #666;
    margin-bottom: 1rem;
}

.category-card ul {
    list-style: none;
    text-align: left;
    margin: 1.5rem 0;
    padding-left: 0;
}

.category-card li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.5rem;
    color: #555;
}

.category-card li:before {
    content: "•";
    color: #4A90E2;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.category-link {
    display: inline-block;
    color: #4A90E2;
    text-decoration: none;
    font-weight: bold;
}

.category-link:hover {
    text-decoration: underline;
}

.tutorial-steps {
    margin: 3rem 0;
}

.tutorial-step {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: #f0f7ff;
    border-radius: 10px;
}

.step-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #4A90E2 0%, #357ABD 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
}

.step-content h3 {
    color: #1a237e;
    margin-bottom: 0.5rem;
}

.safety-tips {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.tip-card {
    padding: 1.5rem;
    border-radius: 10px;
}

.tip-card.warning {
    background-color: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
}

.tip-card.important {
    background-color: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.tip-card.info {
    background-color: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}

.tip-card h3 {
    margin-bottom: 1rem;
}

.safety-checklist {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    margin: 2rem 0;
}

.safety-checklist h3 {
    color: #1a237e;
    margin-bottom: 1.5rem;
}

.safety-checklist ul {
    list-style: none;
    padding-left: 0;
}

.safety-checklist li {
    padding-left: 2rem;
    position: relative;
    margin-bottom: 0.8rem;
    color: #555;
}

.safety-checklist li:before {
    content: "✅";
    position: absolute;
    left: 0;
}

.back-to-home {
    text-align: center;
    margin-top: 3rem;
}

/* ====== 新闻页面特定样式 ====== */
.news-categories {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
    flex-wrap: wrap;
    justify-content: center;
}

.category-btn {
    padding: 0.5rem 1.5rem;
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.category-btn:hover,
.category-btn.active {
    background-color: #4A90E2;
    color: white;
    border-color: #4A90E2;
}

.news-article {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
    flex-wrap: wrap;
}

.article-image {
    flex: 1;
    min-width: 300px;
    position: relative;
}

.article-image img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 8px;
}

.article-category {
    position: absolute;
    top: 10px;
    left: 10px;
    background-color: #4A90E2;
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8rem;
    font-weight: bold;
}

.article-content {
    flex: 2;
    min-width: 300px;
}

.article-content h2 {
    margin-bottom: 1rem;
}

.article-content h2 a {
    color: #1a237e;
    text-decoration: none;
}

.article-content h2 a:hover {
    text-decoration: underline;
}

.article-excerpt {
    color: #666;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    gap: 1rem;
    color: #888;
    font-size: 0.9rem;
    flex-wrap: wrap;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin: 3rem 0;
    flex-wrap: wrap;
}

.page-btn,
.page-next {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 5px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s;
}

.page-btn:hover,
.page-btn.active,
.page-next:hover {
    background-color: #4A90E2;
    color: white;
    border-color: #4A90E2;
}

.page-dots {
    padding: 0.5rem;
}

.newsletter {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem;
    border-radius: 10px;
    text-align: center;
    margin-top: 3rem;
}

.newsletter h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.newsletter p {
    margin-bottom: 2rem;
    opacity: 0.9;
}

.subscribe-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.subscribe-form input {
    flex: 1;
    min-width: 200px;
    padding: 0.8rem 1rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
}

.privacy-note {
    margin-top: 1rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ====== 下载页面特定样式 ====== */
.security-alert {
    background-color: #fff3cd;
    border: 2px solid #ff9800;
    border-radius: 10px;
    padding: 1.5rem;
    margin: 2rem 0;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.alert-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.alert-content h3 {
    color: #856404;
    margin-bottom: 0.5rem;
}

.download-section {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    margin: 2rem 0;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.section-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #eee;
}

.platform-version {
    color: #666;
    font-size: 0.9rem;
}

.download-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.requirements h3,
.download-options h3 {
    color: #1a237e;
    margin-bottom: 1rem;
}

.requirements ul {
    list-style: none;
    padding-left: 0;
}

.requirements li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.8rem;
    color: #555;
}

.requirements li:before {
    content: "✓";
    color: #4CAF50;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.btn-appstore,
.btn-playstore,
.btn-chrome {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 1rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    text-align: center;
}

.btn-appstore {
    background-color: #000;
    color: white;
}

.btn-playstore {
    background-color: #4285F4;
    color: white;
}

.btn-chrome {
    background-color: #34A853;
    color: white;
}

.btn-appstore:hover,
.btn-playstore:hover,
.btn-chrome:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.download-note {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: #ff9800;
    font-style: italic;
}

.setup-guide {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 2rem;
}

.setup-guide h3 {
    color: #1a237e;
    margin-bottom: 1rem;
}

.setup-guide ol {
    margin-left: 1.5rem;
    color: #555;
}

.setup-guide li {
    margin-bottom: 0.8rem;
    line-height: 1.5;
}

.verification-guide {
    background-color: #f0f7ff;
    padding: 3rem;
    border-radius: 10px;
    margin: 3rem 0;
    text-align: center;
}

.verification-guide h2 {
    color: #1a237e;
    margin-bottom: 2rem;
}

.verification-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.verification-step {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    position: relative;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background-color: #4A90E2;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.verification-step h3 {
    color: #1a237e;
    margin: 1.5rem 0 1rem 0;
}

.quick-start {
    text-align: center;
    padding: 3rem 0;
}

.start-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.start-option {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    text-decoration: none;
    color: #333;
    transition: transform 0.3s;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.start-option:hover {
    transform: translateY(-5px);
}

.option-icon {
    margin-bottom: 1.5rem;
}

.start-option h3 {
    color: #1a237e;
    margin-bottom: 0.5rem;
}

/* ====== 关于页面特定样式 ====== */
.about-intro {
    display: flex;
    align-items: center;
    gap: 3rem;
    padding: 3rem 0;
    flex-wrap: wrap;
}

.about-content {
    flex: 1;
    min-width: 300px;
}

.about-content h2 {
    color: #1a237e;
    margin-bottom: 1.5rem;
}

.about-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: #555;
}

.about-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.about-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.our-values {
    padding: 3rem 0;
    background-color: #f8f9fa;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.value-card {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.value-icon {
    margin-bottom: 1.5rem;
}

.value-card h3 {
    color: #1a237e;
    margin-bottom: 1rem;
}

.what-we-provide {
    padding: 3rem 0;
}

.services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.service {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.service h3 {
    color: #1a237e;
    margin-bottom: 1rem;
}

.disclaimer {
    padding: 3rem 0;
    background-color: #f8f9fa;
}

.disclaimer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.warning-box,
.info-box,
.note-box {
    padding: 2rem;
    border-radius: 10px;
}

.warning-box {
    background-color: #fff3cd;
    border-left: 5px solid #ff9800;
}

.info-box {
    background-color: #d1ecf1;
    border-left: 5px solid #17a2b8;
}

.note-box {
    background-color: #e2e3e5;
    border-left: 5px solid #6c757d;
}

.warning-box h3,
.info-box h3,
.note-box h3 {
    margin-bottom: 1rem;
}

.contact-us {
    padding: 3rem 0;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.contact-method {
    text-align: center;
    padding: 2rem;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.contact-icon {
    margin-bottom: 1.5rem;
}

.contact-method h3 {
    color: #1a237e;
    margin-bottom: 1rem;
}

.contact-method p {
    margin-bottom: 0.5rem;
    color: #666;
}

.feedback-form {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    margin-top: 3rem;
}

.feedback-form h3 {
    color: #1a237e;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #555;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
}