/* ============================================
   CSS重置和基础样式
============================================ */

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

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
    overflow-x: hidden;
}

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

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

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

ul, ol {
    list-style: none;
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* 辅助类 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ============================================
   顶部通知栏
============================================ */

.top-notice {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px 0;
    text-align: center;
    font-size: 0.9rem;
}

.top-notice p {
    margin: 0;
}

/* ============================================
   头部和导航
============================================ */

.header {
    background-color: #fff;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

/* Logo样式 */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

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

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text strong {
    font-size: 1.4rem;
    color: #2c3e50;
    font-weight: 700;
}

.logo-text small {
    font-size: 0.85rem;
    color: #7f8c8d;
}

/* 主导航 */
.main-nav {
    flex: 1;
    margin: 0 40px;
}

.nav-list {
    display: flex;
    justify-content: center;
    gap: 30px;
}

.nav-link {
    font-weight: 500;
    color: #555;
    padding: 8px 0;
    position: relative;
    font-size: 1.05rem;
}

.nav-link:hover {
    color: #3498db;
}

.nav-link.active {
    color: #3498db;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: #3498db;
}

/* 搜索框 */
.search-box {
    display: flex;
    align-items: center;
    background: #f8f9fa;
    border-radius: 25px;
    padding: 8px 15px;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.search-box:focus-within {
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.search-box input {
    border: none;
    background: none;
    outline: none;
    width: 200px;
    padding: 0 10px;
    color: #333;
}

.search-box input::placeholder {
    color: #95a5a6;
}

.search-box button {
    color: #7f8c8d;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-box button:hover {
    color: #3498db;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: none;
}

.mobile-menu-btn span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: #333;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* ============================================
   面包屑导航
============================================ */

.breadcrumb {
    background-color: #f8f9fa;
    padding: 15px 0;
    margin-bottom: 30px;
}

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

.breadcrumb li:not(:last-child)::after {
    content: '/';
    margin-left: 10px;
    color: #95a5a6;
}

.breadcrumb a {
    color: #3498db;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb span {
    color: #666;
}

/* ============================================
   英雄横幅
============================================ */

.hero-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.hero-section .container {
    display: flex;
    align-items: center;
    gap: 60px;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    gap: 40px;
    margin: 40px 0;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.95rem;
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

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

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* ============================================
   按钮样式
============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background-color: #3498db;
    color: white;
    border-color: #3498db;
}

.btn-primary:hover {
    background-color: #2980b9;
    border-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.btn-secondary {
    background-color: #2ecc71;
    color: white;
    border-color: #2ecc71;
}

.btn-secondary:hover {
    background-color: #27ae60;
    border-color: #27ae60;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(46, 204, 113, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: white;
    border-color: white;
}

.btn-outline:hover {
    background-color: white;
    color: #3498db;
    transform: translateY(-2px);
}

/* ============================================
   区域标题
============================================ */

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

.section-title {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: #3498db;
    border-radius: 3px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #7f8c8d;
    max-width: 700px;
    margin: 20px auto 0;
    line-height: 1.6;
}

.section-footer {
    text-align: center;
    margin-top: 40px;
}

/* ============================================
   钱包卡片样式
============================================ */

.wallets-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.wallets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.wallet-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #eee;
    position: relative;
    overflow: hidden;
}

.wallet-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    border-color: #3498db;
}

.wallet-header {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
    gap: 15px;
}

.wallet-logo {
    position: relative;
    flex-shrink: 0;
}

.wallet-logo img {
    width: 70px;
    height: 70px;
    border-radius: 12px;
    object-fit: contain;
    padding: 5px;
    background: white;
    border: 1px solid #eee;
}

.wallet-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.wallet-badge:not([class*="official"]):not([class*="popular"]):not([class*="secure"]) {
    background-color: #e74c3c;
}

.wallet-badge.official {
    background-color: #f39c12;
}

.wallet-badge.popular {
    background-color: #9b59b6;
}

.wallet-badge.secure {
    background-color: #2ecc71;
}

.wallet-info {
    flex: 1;
}

.wallet-info h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.wallet-info h3 a {
    color: #2c3e50;
}

.wallet-info h3 a:hover {
    color: #3498db;
}

.wallet-category {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.wallet-description {
    color: #555;
    line-height: 1.6;
    margin-bottom: 20px;
    font-size: 0.95rem;
}

.wallet-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.feature-tag {
    background-color: #e8f4fc;
    color: #3498db;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.wallet-rating {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 20px 0;
    padding: 15px 0;
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
}

.stars {
    color: #f39c12;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.rating-score {
    font-weight: 600;
    color: #2c3e50;
}

.download-info {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.wallet-actions {
    display: flex;
    gap: 10px;
    margin: 20px 0;
}

.wallet-actions .btn {
    flex: 1;
    padding: 10px;
    font-size: 0.95rem;
}

.wallet-security {
    display: flex;
    gap: 8px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.security-tag {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.security-tag.high {
    background-color: #d4edda;
    color: #155724;
}

.security-tag.highest {
    background-color: #d1ecf1;
    color: #0c5460;
}

.security-tag.medium {
    background-color: #fff3cd;
    color: #856404;
}

.security-tag.open {
    background-color: #e2e3e5;
    color: #383d41;
}

.security-tag.official {
    background-color: #f8d7da;
    color: #721c24;
}

.security-tag.multi {
    background-color: #e2d9f3;
    color: #4a3f8c;
}

.security-tag.hardware {
    background-color: #cce5ff;
    color: #004085;
}

/* ============================================
   钱包类型区域
============================================ */

.types-section {
    padding: 80px 0;
    background-color: white;
}

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

.type-card {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.type-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: #3498db;
    background: white;
}

.type-icon {
    margin-bottom: 20px;
}

.type-icon img {
    width: 60px;
    height: 60px;
    margin: 0 auto;
}

.type-title {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 600;
}

.type-features {
    text-align: left;
    margin-bottom: 25px;
}

.type-features li {
    padding: 8px 0;
    color: #555;
    position: relative;
    padding-left: 25px;
}

.type-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #2ecc71;
    font-weight: bold;
}

.type-link {
    color: #3498db;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.type-link:hover {
    color: #2980b9;
    text-decoration: underline;
}

/* ============================================
   安全指南区域
============================================ */

.security-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

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

.security-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.security-card.danger {
    border-color: #f8d7da;
}

.security-card.warning {
    border-color: #fff3cd;
}

.security-card.safe {
    border-color: #d4edda;
}

.security-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.security-icon {
    margin-bottom: 20px;
}

.security-icon svg {
    stroke-width: 2;
}

.security-card.danger .security-icon svg {
    color: #e74c3c;
}

.security-card.warning .security-icon svg {
    color: #f39c12;
}

.security-card.safe .security-icon svg {
    color: #2ecc71;
}

.security-title {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 600;
}

.security-list {
    text-align: left;
}

.security-list li {
    padding: 10px 0;
    color: #555;
    border-bottom: 1px solid #eee;
    position: relative;
    padding-left: 25px;
}

.security-list li:last-child {
    border-bottom: none;
}

.security-card.danger .security-list li::before {
    content: '✗';
    position: absolute;
    left: 0;
    color: #e74c3c;
    font-weight: bold;
}

.security-card.warning .security-list li::before {
    content: '⚠';
    position: absolute;
    left: 0;
    color: #f39c12;
    font-weight: bold;
}

.security-card.safe .security-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #2ecc71;
    font-weight: bold;
}

/* ============================================
   常见问题区域
============================================ */

.faq-section {
    padding: 80px 0;
    background-color: white;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border: 1px solid #e9ecef;
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
}

.faq-item[open] {
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.faq-question {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
    padding: 20px;
    background: #f8f9fa;
    cursor: pointer;
    list-style: none;
    position: relative;
}

.faq-question:hover {
    background: #e9ecef;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: #3498db;
}

.faq-item[open] .faq-question::after {
    content: '−';
}

.faq-answer {
    padding: 20px;
    background: white;
    color: #555;
    line-height: 1.7;
}

.faq-answer p {
    margin-bottom: 15px;
}

.faq-answer ol,
.faq-answer ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.faq-answer li {
    margin-bottom: 8px;
}

/* ============================================
   行动号召区域
============================================ */

.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.cta-description {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* ============================================
   页脚样式
============================================ */

.footer {
    background-color: #2c3e50;
    color: #bdc3c7;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

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

.footer-logo h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.footer-description {
    font-size: 0.9rem;
    line-height: 1.5;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 10px;
}

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

.social-links a:hover {
    background: #3498db;
    transform: translateY(-3px);
}

.footer-title {
    color: white;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-links a {
    color: #bdc3c7;
    font-size: 0.95rem;
}

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

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 30px;
    text-align: center;
}

.copyright {
    margin-bottom: 20px;
}

.copyright p {
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.disclaimer {
    color: #e74c3c;
    font-size: 0.85rem;
    font-weight: 500;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.5;
}

.seo-info {
    color: #95a5a6;
    font-size: 0.8rem;
    margin-top: 20px;
    opacity: 0.7;
}

.seo-info p {
    margin: 0;
}

/* ============================================
   返回顶部按钮
============================================ */

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #3498db;
    color: white;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
    z-index: 999;
    transition: all 0.3s ease;
}

.back-to-top:hover {
    background: #2980b9;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.back-to-top.visible {
    display: flex;
}

/* ============================================
   联系页面样式
============================================ */

.page-header {
    text-align: center;
    padding: 60px 0 40px;
}

.page-title {
    font-size: 2.8rem;
    color: #2c3e50;
    margin-bottom: 15px;
}

.page-description {
    font-size: 1.2rem;
    color: #7f8c8d;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 联系信息网格 */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.contact-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #eee;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    border-color: #3498db;
}

.contact-icon {
    margin-bottom: 20px;
    color: #3498db;
}

.contact-icon svg {
    stroke-width: 1.5;
}

.contact-card h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

.contact-details {
    text-align: left;
}

.contact-details p {
    margin-bottom: 10px;
    color: #555;
    line-height: 1.5;
}

.contact-details strong {
    color: #333;
}

/* 联系表单 */
.contact-form-section {
    padding: 60px 0;
    background: #f8f9fa;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

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

.form-header h2 {
    font-size: 2.2rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

.form-header p {
    color: #7f8c8d;
}

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

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

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

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

.error-message {
    color: #e74c3c;
    font-size: 0.9rem;
    margin-top: 5px;
    display: none;
}

/* 验证码 */
.captcha-container {
    display: flex;
    gap: 10px;
    align-items: center;
}

.captcha-code {
    padding: 12px 20px;
    background: #f8f9fa;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-family: monospace;
    font-size: 1.2rem;
    letter-spacing: 2px;
    min-width: 100px;
    text-align: center;
}

.captcha-refresh {
    padding: 12px;
    background: #f8f9fa;
    border: 1px solid #ddd;
    border-radius: 6px;
    color: #666;
    transition: all 0.3s ease;
}

.captcha-refresh:hover {
    background: #e9ecef;
    color: #3498db;
}

.form-submit {
    text-align: center;
    margin-top: 30px;
}

.form-submit .btn {
    padding: 14px 40px;
    font-size: 1.1rem;
}

/* 网站地图 */
.sitemap-section {
    padding: 60px 0;
    background: white;
}

.sitemap-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 40px;
}

.sitemap-category {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 25px;
}

.sitemap-category h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #3498db;
}

.sitemap-category h3 a {
    color: inherit;
}

.sitemap-category h3 a:hover {
    color: #3498db;
}

.sitemap-category ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sitemap-category li {
    display: flex;
    flex-direction: column;
}

.sitemap-category li a {
    font-weight: 500;
    color: #3498db;
    margin-bottom: 4px;
}

.sitemap-category li a:hover {
    text-decoration: underline;
}

.sitemap-category li::after {
    content: attr(data-desc);
    font-size: 0.9rem;
    color: #7f8c8d;
}

.sitemap-download {
    grid-column: 1 / -1;
    background: #e8f4fc;
    border-radius: 8px;
    padding: 30px;
    margin-top: 20px;
}

.sitemap-download h3 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.sitemap-download ul {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 20px 0;
}

.sitemap-download li a {
    color: #3498db;
    font-weight: 500;
}

.sitemap-download li a:hover {
    text-decoration: underline;
}

.sitemap-note {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 15px;
    margin-top: 20px;
    border-radius: 4px;
}

/* 常见问题预览 */
.faq-preview {
    padding: 60px 0;
    background: #f8f9fa;
}

.faq-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.faq-link {
    background: white;
    border-radius: 8px;
    padding: 25px;
    display: block;
    transition: all 0.3s ease;
    border: 1px solid #eee;
}

.faq-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: #3498db;
}

.faq-link h4 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.faq-link p {
    color: #7f8c8d;
    font-size: 0.95rem;
}

/* ============================================
   政策页面样式
============================================ */

.policy-content,
.terms-content,
.disclaimer-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 0;
}

.policy-header,
.terms-header,
.disclaimer-header {
    text-align: center;
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 2px solid #eee;
}

.policy-header h1,
.terms-header h1,
.disclaimer-header h1 {
    font-size: 2.8rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

.policy-update,
.terms-update {
    color: #7f8c8d;
    font-size: 0.95rem;
}

.disclaimer-subtitle {
    color: #7f8c8d;
    font-size: 1.1rem;
    margin-top: 10px;
}

.warning-box {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 8px;
    padding: 20px;
    margin-top: 30px;
    text-align: left;
}

.warning-box h3 {
    color: #856404;
    margin-bottom: 10px;
}

.warning-box p {
    color: #856404;
    margin: 0;
}

.policy-section,
.terms-section,
.disclaimer-section {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid #eee;
}

.policy-section:last-child,
.terms-section:last-child,
.disclaimer-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.policy-section h2,
.terms-section h2,
.disclaimer-section h2 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f8f9fa;
}

.policy-section h3,
.terms-section h3,
.disclaimer-section h3 {
    font-size: 1.3rem;
    color: #34495e;
    margin: 25px 0 15px;
}

.policy-section p,
.terms-section p,
.disclaimer-section p {
    line-height: 1.7;
    margin-bottom: 15px;
    color: #555;
}

.policy-section ul,
.terms-section ul,
.disclaimer-section ul {
    margin: 15px 0 20px 20px;
}

.policy-section li,
.terms-section li,
.disclaimer-section li {
    margin-bottom: 10px;
    line-height: 1.6;
    color: #555;
}

.contact-details {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
}

.contact-details p {
    margin-bottom: 10px;
}

.contact-details strong {
    color: #2c3e50;
}

.policy-footer,
.terms-footer {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 2px solid #eee;
    text-align: center;
    font-style: italic;
    color: #7f8c8d;
}

/* 免责声明特有样式 */
.risk-warning {
    background: #fff3cd;
    border-radius: 8px;
    padding: 25px;
    margin: 20px 0;
    border-left: 4px solid #f39c12;
}

.risk-warning h3 {
    color: #856404;
}

.risk-warning ul {
    margin-left: 20px;
}

.risk-warning li {
    margin-bottom: 8px;
}

.liability-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.liability-item {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #e74c3c;
}

.liability-item h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.liability-item p {
    margin: 0;
    color: #666;
    font-size: 0.95rem;
}

.safety-tips {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.tip-card {
    padding: 25px;
    border-radius: 8px;
}

.tip-card.critical {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
}

.tip-card.important {
    background: #d1ecf1;
    border: 1px solid #bee5eb;
}

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

.tip-card h4 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.tip-card.critical h4 {
    color: #721c24;
}

.tip-card.important h4 {
    color: #0c5460;
}

.tip-card.recommended h4 {
    color: #155724;
}

.tip-card ul {
    margin-left: 20px;
}

.tip-card li {
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.disclaimer-footer {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 2px solid #eee;
}

.final-warning {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 8px;
    padding: 30px;
    text-align: center;
}

.final-warning h3 {
    color: #721c24;
    margin-bottom: 20px;
}

.final-warning ul {
    display: inline-block;
    text-align: left;
    margin: 20px auto;
}

.final-warning li {
    margin-bottom: 10px;
}

.signature {
    margin-top: 30px;
    font-style: italic;
    color: #666;
    font-weight: 500;
}

/* 风险确认弹窗 */
.risk-confirmation {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 20px;
}

.risk-modal {
    background: white;
    border-radius: 12px;
    max-width: 500px;
    width: 100%;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.risk-header {
    background: #e74c3c;
    color: white;
    padding: 25px;
    text-align: center;
}

.risk-header h3 {
    margin: 0;
    font-size: 1.5rem;
}

.risk-content {
    padding: 30px;
}

.risk-content p {
    margin-bottom: 15px;
    line-height: 1.6;
}

.risk-content ul {
    margin: 20px 0 20px 20px;
}

.risk-content li {
    margin-bottom: 10px;
    color: #555;
}

.risk-actions {
    padding: 25px;
    background: #f8f9fa;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.risk-actions .btn {
    flex: 1;
    min-width: 120px;
}

/* 顶部通知栏警告样式 */
.top-notice.warning {
    background-color: #fff3cd;
    color: #856404;
    border-bottom: 2px solid #ffc107;
}

/* ============================================
   官方下载页面样式
============================================ */

/* 页面标题 */
.security-badges {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.badge {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.badge.verified {
    background: #d4edda;
    color: #155724;
}

.badge.safe {
    background: #d1ecf1;
    color: #0c5460;
}

.badge.updated {
    background: #fff3cd;
    color: #856404;
}

/* 安全警报 */
.safety-alert {
    padding: 30px 0;
}

.alert-card.critical {
    background: #f8d7da;
    border: 2px solid #f5c6cb;
    border-radius: 12px;
    overflow: hidden;
}

.alert-header {
    background: #e74c3c;
    color: white;
    padding: 20px;
}

.alert-header h3 {
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
}

.alert-content {
    padding: 25px;
}

.alert-content ul {
    margin: 0;
}

.alert-content li {
    margin-bottom: 15px;
    color: #721c24;
    font-size: 1.05rem;
    padding-left: 25px;
    position: relative;
}

.alert-content li::before {
    content: '⚠';
    position: absolute;
    left: 0;
    color: #e74c3c;
    font-weight: bold;
}

.alert-content li strong {
    color: #721c24;
}

.alert-content li:last-child {
    margin-bottom: 0;
}

/* 下载分类 */
.download-categories {
    padding: 40px 0;
    background: #f8f9fa;
}

.category-tabs {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding-bottom: 10px;
}

.category-tabs::-webkit-scrollbar {
    height: 6px;
}

.category-tabs::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.category-tabs::-webkit-scrollbar-thumb {
    background: #3498db;
    border-radius: 3px;
}

.tab-btn {
    padding: 12px 24px;
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 25px;
    font-weight: 600;
    color: #555;
    white-space: nowrap;
    transition: all 0.3s ease;
    cursor: pointer;
}

.tab-btn:hover {
    border-color: #3498db;
    color: #3498db;
}

.tab-btn.active {
    background: #3498db;
    border-color: #3498db;
    color: white;
}

/* 下载列表 */
.download-list {
    padding: 60px 0;
}

.download-item {
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.download-item:hover {
    border-color: #3498db;
    box-shadow: 0 10px 25px rgba(52, 152, 219, 0.1);
    transform: translateY(-5px);
}

.download-header {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f8f9fa;
}

.wallet-logo {
    position: relative;
    flex-shrink: 0;
}

.wallet-logo img {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    object-fit: contain;
    padding: 5px;
    background: white;
    border: 2px solid #eee;
}

.popular-tag, .official-tag, .multichain-tag, .hardware-tag {
    position: absolute;
    top: -8px;
    right: -8px;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    color: white;
    text-transform: uppercase;
}

.popular-tag {
    background: #e74c3c;
}

.official-tag {
    background: #f39c12;
}

.multichain-tag {
    background: #9b59b6;
}

.hardware-tag {
    background: #2ecc71;
}

.wallet-info {
    flex: 1;
}

.wallet-info h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

.wallet-desc {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
    font-size: 1.05rem;
}

.wallet-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.tag.ethereum {
    background: #e8f4fc;
    color: #3498db;
}

.tag.defi {
    background: #d4edda;
    color: #27ae60;
}

.tag.nft {
    background: #f3e5f5;
    color: #9b59b6;
}

.tag.opensource {
    background: #e2e3e5;
    color: #6c757d;
}

.tag.binance {
    background: #fef3cd;
    color: #f0b90b;
}

.tag.multichain {
    background: #d1ecf1;
    color: #17a2b8;
}

.tag.dex {
    background: #d4edda;
    color: #28a745;
}

.tag.staking {
    background: #fff3cd;
    color: #ffc107;
}

.tag.eos {
    background: #e8f4fc;
    color: #1a237e;
}

.tag.bsc {
    background: #fef3cd;
    color: #f0b90b;
}

.tag.tron {
    background: #d4edda;
    color: #ff0019;
}

.tag.crosschain {
    background: #d1ecf1;
    color: #17a2b8;
}

.tag.coldstorage {
    background: #d1ecf1;
    color: #0c5460;
}

.tag.bluetooth {
    background: #e8f4fc;
    color: #3498db;
}

.tag.secure {
    background: #d4edda;
    color: #28a745;
}

.tag.multisig {
    background: #f3e5f5;
    color: #9b59b6;
}

.safety-score {
    text-align: center;
    flex-shrink: 0;
}

.safety-score .score {
    font-size: 2.5rem;
    font-weight: bold;
    color: #2ecc71;
    line-height: 1;
}

.safety-score span {
    display: block;
    color: #95a5a6;
    font-size: 0.9rem;
    margin-top: 5px;
}

/* 下载平台 */
.download-platforms {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.platform {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
}

.platform:hover {
    background: #e8f4fc;
    border-color: #3498db;
}

.platform h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.platform-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.platform-info span {
    color: #666;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.platform-info .version::before {
    content: '📦';
}

.platform-info .size::before {
    content: '💾';
}

.platform-info .updated::before {
    content: '🔄';
}

.platform-info .rating::before {
    content: '⭐';
}

.platform-info .users::before {
    content: '👥';
}

.platform-info .system::before {
    content: '💻';
}

.platform-info .model::before {
    content: '📱';
}

.platform-info .price::before {
    content: '💰';
}

.platform-info .shipping::before {
    content: '🚚';
}

.platform .btn {
    width: 100%;
}

/* 验证信息 */
.download-verification {
    background: #e8f4fc;
    border-radius: 10px;
    padding: 25px;
}

.download-verification h4 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.verification-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.verification-info p {
    margin: 0;
    color: #555;
    line-height: 1.6;
}

.verification-info strong {
    color: #2c3e50;
    min-width: 80px;
    display: inline-block;
}

.verification-info a {
    color: #3498db;
    text-decoration: none;
}

.verification-info a:hover {
    text-decoration: underline;
}

/* 下载安全指南 */
.download-safety {
    padding: 80px 0;
    background: #f8f9fa;
}

.safety-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.step {
    text-align: center;
    background: white;
    border-radius: 12px;
    padding: 30px 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.step:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.step-icon {
    width: 60px;
    height: 60px;
    background: #3498db;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: bold;
    margin: 0 auto 20px;
}

.step h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.step p {
    color: #666;
    margin: 0;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 下载常见问题 */
.download-faq {
    padding: 80px 0;
    background: white;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.faq-item {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 25px;
    transition: all 0.3s ease;
}

.faq-item:hover {
    background: #e8f4fc;
    transform: translateY(-5px);
}

.faq-item h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.faq-item p {
    color: #555;
    margin: 0;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 页脚安全提示 */
.safety-notice {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 8px;
    padding: 15px;
    margin-top: 20px;
    color: #856404;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* 响应式调整 */
@media (max-width: 992px) {
    .download-header {
        flex-direction: column;
        text-align: center;
    }
    
    .wallet-logo {
        margin: 0 auto;
    }
    
    .wallet-tags {
        justify-content: center;
    }
    
    .safety-score {
        margin-top: 20px;
    }
}

@media (max-width: 768px) {
    .verification-info {
        grid-template-columns: 1fr;
    }
    
    .platform-info span {
        font-size: 0.85rem;
    }
    
    .tab-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* ============================================
   钱包指南页面样式
============================================ */

/* 页面标题 */
.guide-stats {
    display: flex;
    gap: 20px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.guide-stats .stat {
    background: #f8f9fa;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #666;
}

/* 目录导航 */
.table-of-contents {
    padding: 40px 0;
    background: #f8f9fa;
}

.toc-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.toc-card h3 {
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 1.4rem;
}

.toc-nav {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toc-link {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    background: #f8f9fa;
    border-radius: 8px;
    color: #555;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 40px;
}

.toc-link::before {
    content: '';
    position: absolute;
    left: 20px;
    width: 6px;
    height: 6px;
    background: #3498db;
    border-radius: 50%;
}

.toc-link:hover {
    background: #e8f4fc;
    color: #3498db;
    transform: translateX(5px);
}

.toc-link.active {
    background: #3498db;
    color: white;
}

.toc-link.active::before {
    background: white;
}

/* 指南章节 */
.guide-content {
    padding: 60px 0;
}

.guide-chapter {
    margin-bottom: 80px;
    padding-bottom: 60px;
    border-bottom: 2px solid #f8f9fa;
}

.guide-chapter:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.chapter-title {
    font-size: 2rem;
    color: #2c3e50;
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 3px solid #3498db;
}

.chapter-content {
    font-size: 1.05rem;
    line-height: 1.7;
}

.chapter-content p {
    margin-bottom: 20px;
    color: #555;
}

.chapter-content h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin: 30px 0 20px;
}

.chapter-content h4 {
    font-size: 1.2rem;
    color: #34495e;
    margin: 25px 0 15px;
}

/* 信息框 */
.info-box {
    background: #e8f4fc;
    border-left: 4px solid #3498db;
    padding: 25px;
    border-radius: 8px;
    margin: 25px 0;
}

.info-box h4 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.info-box ul {
    margin-left: 20px;
}

.info-box li {
    margin-bottom: 10px;
    color: #555;
}

.info-box strong {
    color: #2c3e50;
}

/* 工作流程 */
.workflow {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.workflow-step {
    background: white;
    border: 2px solid #e8f4fc;
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    position: relative;
}

.workflow-step::before {
    content: '';
    position: absolute;
    top: 50%;
    right: -10px;
    width: 20px;
    height: 20px;
    background: #3498db;
    border-radius: 50%;
    transform: translateY(-50%);
    z-index: 1;
}

.workflow-step::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -30px;
    width: 30px;
    height: 2px;
    background: #3498db;
    transform: translateY(-50%);
}

.workflow-step:last-child::before,
.workflow-step:last-child::after {
    display: none;
}

@media (max-width: 768px) {
    .workflow-step::before,
    .workflow-step::after {
        display: none;
    }
}

.step-number {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: #3498db;
    color: white;
    border-radius: 50%;
    line-height: 40px;
    font-weight: bold;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.workflow-step h4 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.workflow-step p {
    color: #666;
    font-size: 0.95rem;
    margin: 0;
}

/* 类型比较 */
.types-comparison {
    margin: 30px 0;
}

.type-category {
    margin-bottom: 40px;
}

.type-category h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f8f9fa;
}

.type-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.type-item {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    transition: all 0.3s ease;
}

.type-item:hover {
    background: #e8f4fc;
    transform: translateY(-5px);
}

.type-item h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.type-item ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.type-item li {
    margin-bottom: 8px;
    color: #555;
    font-size: 0.95rem;
}

.type-item p {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
}

.type-item p strong {
    color: #2c3e50;
}

/* 推荐表格 */
.recommendation-table {
    margin: 40px 0;
    overflow-x: auto;
}

.recommendation-table table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.recommendation-table th {
    background: #3498db;
    color: white;
    padding: 15px;
    text-align: left;
    font-weight: 600;
    font-size: 1rem;
}

.recommendation-table td {
    padding: 15px;
    border-bottom: 1px solid #eee;
    color: #555;
}

.recommendation-table tr:hover {
    background: #f8f9fa;
}

.recommendation-table tr:nth-child(even) {
    background: #f8f9fa;
}

/* 选择流程图 */
.selection-flowchart {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.flow-step {
    background: white;
    border: 2px solid #e8f4fc;
    border-radius: 10px;
    padding: 25px;
    position: relative;
}

.flow-step::before {
    content: '→';
    position: absolute;
    right: -25px;
    top: 50%;
    transform: translateY(-50%);
    color: #3498db;
    font-size: 1.5rem;
    font-weight: bold;
}

.flow-step:last-child::before {
    display: none;
}

@media (max-width: 768px) {
    .flow-step::before {
        display: none;
    }
}

.flow-step h4 {
    color: #3498db;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.flow-step p {
    color: #666;
    margin-bottom: 15px;
}

.flow-step ul {
    margin-left: 20px;
}

.flow-step li {
    margin-bottom: 8px;
    color: #555;
    font-size: 0.95rem;
}

/* 检查清单 */
.checklist {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    margin: 30px 0;
}

.checklist-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.checklist-item:last-child {
    margin-bottom: 0;
}

.checklist-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 15px;
    accent-color: #3498db;
}

.checklist-item label {
    color: #555;
    font-size: 1.05rem;
    cursor: pointer;
    flex: 1;
}

.checklist-item label:hover {
    color: #2c3e50;
}

/* 设置步骤 */
.setup-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.step-card {
    background: white;
    border: 2px solid #e8f4fc;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(52, 152, 219, 0.1);
}

.step-header {
    background: #3498db;
    color: white;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.step-number {
    font-size: 1.5rem;
    font-weight: bold;
    opacity: 0.9;
}

.step-header h4 {
    margin: 0;
    font-size: 1.2rem;
}

.step-content {
    padding: 20px;
}

.step-content p {
    margin-bottom: 10px;
    color: #555;
}

.step-content .warning {
    color: #e74c3c;
    font-weight: 500;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #eee;
}

/* 提示框 */
.tip-box {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 8px;
    padding: 25px;
    margin: 30px 0;
}

.tip-box.important {
    background: #d4edda;
    border-color: #c3e6cb;
}

.tip-box h4 {
    color: #856404;
    margin-bottom: 15px;
}

.tip-box.important h4 {
    color: #155724;
}

.tip-box p {
    color: #856404;
    margin-bottom: 15px;
}

.tip-box.important p {
    color: #155724;
}

.tip-box ol {
    margin-left: 20px;
    color: #856404;
}

.tip-box.important ol {
    color: #155724;
}

.tip-box li {
    margin-bottom: 10px;
}

/* 备份方法 */
.backup-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.method-card {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.method-card:hover {
    border-color: #3498db;
    transform: translateY(-5px);
}

.method-card h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.method-card p {
    margin-bottom: 10px;
    color: #555;
}

.method-card p strong {
    color: #2c3e50;
}

.method-tips {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.method-tips h5 {
    color: #3498db;
    margin-bottom: 10px;
    font-size: 1rem;
}

.method-tips ul {
    margin-left: 20px;
}

.method-tips li {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 8px;
}

/* 存储建议 */
.storage-suggestions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.storage-tier {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
}

.storage-tier h4 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.2rem;
    padding-bottom: 10px;
    border-bottom: 2px solid #3498db;
}

.storage-tier ul {
    margin-left: 20px;
}

.storage-tier li {
    color: #555;
    margin-bottom: 10px;
    padding-left: 10px;
    position: relative;
}

.storage-tier li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #3498db;
    font-weight: bold;
}

/* 快速导航 */
.quick-navigation {
    padding: 40px 0;
    background: #f8f9fa;
}

.nav-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.nav-buttons .btn {
    min-width: 180px;
}

/* 相关资源 */
.related-resources {
    padding: 60px 0;
    background: white;
}

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.resource-card {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    display: block;
    transition: all 0.3s ease;
    border: 1px solid #eee;
}

.resource-card:hover {
    background: #e8f4fc;
    transform: translateY(-5px);
    border-color: #3498db;
    text-decoration: none;
}

.resource-card h4 {
    color: #2c3e50;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.resource-card p {
    color: #666;
    margin: 0;
    font-size: 0.95rem;
}