/* 科技深色主题 - OpenClaw 网站样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background-color: #121212;
    min-height: 100vh;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(30, 30, 30, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    border-bottom: 1px solid #333;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #4fc9ff;
    text-decoration: none;
}

/* 搜索框样式 */
.search-container {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    padding: 5px 15px;
    border: 1px solid #444;
    transition: border-color 0.3s ease;
}

.search-container:focus-within {
    border-color: #4fc9ff;
    box-shadow: 0 0 0 2px rgba(79, 201, 255, 0.2);
}

#searchInput {
    background: transparent;
    border: none;
    color: #e0e0e0;
    padding: 8px 0;
    font-size: 0.9rem;
    width: 200px;
    outline: none;
}

#searchInput::placeholder {
    color: #888;
}

#searchButton {
    background: none;
    border: none;
    color: #888;
    cursor: pointer;
    font-size: 1rem;
    padding: 5px;
    transition: color 0.3s ease;
}

#searchButton:hover {
    color: #4fc9ff;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: #e0e0e0;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #4fc9ff;
}

.nav-menu a.active {
    color: #4fc9ff;
    font-weight: 600;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #e0e0e0;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 面包屑导航 */
.breadcrumb {
    background: rgba(30, 30, 30, 0.8);
    padding: 15px 0;
    margin-top: 70px;
    border-bottom: 1px solid #333;
}

.breadcrumb .container {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: #4fc9ff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: #2196F3;
    text-decoration: underline;
}

.breadcrumb .separator {
    color: #666;
}

.breadcrumb .current {
    color: #b0b0b0;
}

/* 阅读进度指示器 */
.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: rgba(30, 30, 30, 0.5);
    z-index: 999;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #4fc9ff, #2196F3);
    width: 0%;
    transition: width 0.1s ease;
}

/* 目录导航 */
.table-of-contents {
    position: fixed;
    top: 100px;
    right: 20px;
    width: 250px;
    background: #1e1e1e;
    border: 1px solid #333;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    transform: translateX(300px);
    transition: transform 0.3s ease;
}

.table-of-contents.active {
    transform: translateX(0);
}

.toc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #333;
}

.toc-header h3 {
    margin: 0;
    color: #4fc9ff;
    font-size: 1.2rem;
}

.toc-toggle {
    background: none;
    border: none;
    color: #888;
    cursor: pointer;
    font-size: 1.5rem;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.3s ease;
}

.toc-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #e0e0e0;
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.toc-list li {
    margin-bottom: 10px;
}

.toc-list a {
    color: #e0e0e0;
    text-decoration: none;
    display: block;
    padding: 8px 12px;
    border-radius: 5px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.toc-list a:hover {
    background: rgba(79, 201, 255, 0.1);
    color: #4fc9ff;
    padding-left: 15px;
}

.toc-button {
    position: fixed;
    top: 120px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #4fc9ff, #2196F3);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 999;
    box-shadow: 0 4px 15px rgba(79, 201, 255, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.toc-button:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(79, 201, 255, 0.4);
}

/* 英雄区域 */
.hero {
    text-align: center;
    padding: 120px 20px 80px;
    background: linear-gradient(135deg, rgba(79, 201, 255, 0.1) 0%, rgba(33, 150, 243, 0.1) 100%);
    border-radius: 20px;
    margin: 20px 0 40px;
    border: 1px solid #333;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #4fc9ff, #2196F3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.2rem;
    color: #b0b0b0;
    max-width: 800px;
    margin: 0 auto 40px;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, #4fc9ff, #2196F3);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(79, 201, 255, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(79, 201, 255, 0.4);
}

/* 快速导航 */
.quick-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.quick-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    padding: 15px 25px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    min-width: 120px;
}

.quick-nav-item:hover {
    background: rgba(79, 201, 255, 0.1);
    border-color: #4fc9ff;
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(79, 201, 255, 0.2);
}

.quick-nav-icon {
    font-size: 2rem;
    margin-bottom: 10px;
    color: #4fc9ff;
}

.quick-nav-text {
    color: #e0e0e0;
    font-weight: 500;
    font-size: 0.9rem;
}

/* 联系信息 */
.contact-info {
    margin-top: 15px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-icon {
    color: #4fc9ff;
    font-size: 1.2rem;
}

.contact-text {
    color: #e0e0e0;
    font-size: 0.9rem;
}

/* 赞助部分 */
.sponsor-section {
    margin-top: 60px;
    padding: 30px;
    background: rgba(79, 201, 255, 0.05);
    border-radius: 15px;
    border: 1px solid rgba(79, 201, 255, 0.2);
    text-align: center;
}

.sponsor-section h3 {
    color: #4fc9ff;
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.sponsor-section p {
    color: #b0b0b0;
    margin-bottom: 25px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.sponsor-options {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.sponsor-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    padding: 20px 30px;
    background: rgba(79, 201, 255, 0.1);
    border-radius: 15px;
    border: 2px solid rgba(79, 201, 255, 0.3);
    transition: all 0.3s ease;
    min-width: 150px;
}

.sponsor-button:hover {
    background: rgba(79, 201, 255, 0.2);
    border-color: #4fc9ff;
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(79, 201, 255, 0.3);
}

.sponsor-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #4fc9ff;
}

.sponsor-text {
    color: #e0e0e0;
    font-weight: 600;
    font-size: 1rem;
}

/* 赞助页面专用样式 */
.sponsor-method {
    background: #1e1e1e;
    border-radius: 15px;
    padding: 30px;
    border: 1px solid #333;
    transition: all 0.3s ease;
}

.sponsor-method:hover {
    border-color: #4fc9ff;
    box-shadow: 0 10px 30px rgba(79, 201, 255, 0.1);
}

.method-icon {
    font-size: 3rem;
    color: #4fc9ff;
    margin-bottom: 20px;
}

.method-title {
    color: #ffffff;
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.method-desc {
    color: #b0b0b0;
    margin-bottom: 20px;
    line-height: 1.6;
}

.payment-options {
    margin-top: 20px;
}

.payment-option {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.payment-icon {
    color: #4fc9ff;
    font-size: 1.5rem;
    margin-right: 10px;
}

.payment-text {
    color: #e0e0e0;
    font-weight: 500;
}

.payment-qr {
    margin-top: 15px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    text-align: center;
}

.payment-qr p {
    color: #888;
    font-size: 0.9rem;
    margin: 0;
}

.qr-placeholder {
    text-align: center;
    padding: 20px;
}

.qr-icon {
    font-size: 3rem;
    color: #4fc9ff;
    margin-bottom: 10px;
}

.qr-image {
    max-width: 200px;
    max-height: 200px;
    border-radius: 10px;
    border: 2px solid #4fc9ff;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.qr-caption {
    margin-top: 10px;
    color: #b0b0b0;
    font-size: 0.9rem;
}

.admin-actions {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.method-note {
    margin-top: 15px;
    color: #888;
    font-size: 0.8rem;
    text-align: center;
}

.support-list {
    list-style: none;
    padding: 0;
    margin: 20px 0 0 0;
}

.support-list li {
    color: #b0b0b0;
    margin-bottom: 10px;
    padding-left: 25px;
    position: relative;
}

.support-list li:before {
    content: '✓';
    color: #4fc9ff;
    position: absolute;
    left: 0;
}

.sponsors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.sponsor-item {
    background: #1e1e1e;
    border-radius: 10px;
    padding: 20px;
    border: 1px solid #333;
    text-align: center;
}

.sponsor-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 15px;
    border: 3px solid #4fc9ff;
}

.sponsor-name {
    color: #ffffff;
    margin-bottom: 5px;
    font-weight: 600;
}

.sponsor-amount {
    color: #4fc9ff;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.sponsor-date {
    color: #888;
    font-size: 0.8rem;
}

.loading-spinner {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(79, 201, 255, 0.3);
    border-top: 3px solid #4fc9ff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.contact-card {
    background: #1e1e1e;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    border: 1px solid #333;
    transition: all 0.3s ease;
}

.contact-card:hover {
    border-color: #4fc9ff;
    transform: translateY(-5px);
}

.contact-card .contact-icon {
    font-size: 3rem;
    color: #4fc9ff;
    margin-bottom: 15px;
}

.contact-title {
    color: #ffffff;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.contact-detail {
    color: #b0b0b0;
    font-size: 1rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .sponsor-options {
        flex-direction: column;
        align-items: center;
    }
    
    .sponsor-method {
        width: 100%;
        max-width: 400px;
    }
    
    .sponsors-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .contact-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .sponsor-method {
        padding: 20px;
    }
    
    .method-icon {
        font-size: 2.5rem;
    }
    
    .sponsors-grid {
        grid-template-columns: 1fr;
    }
}

/* 内容区域 */
.section {
    padding: 80px 0;
    border-bottom: 1px solid #333;
}

.section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
    color: #ffffff;
}

.intro-text {
    font-size: 1.2rem;
    color: #b0b0b0;
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

/* 功能网格 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background: #1e1e1e;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #333;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(79, 201, 255, 0.2);
    border-color: #4fc9ff;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    color: #4fc9ff;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #ffffff;
}

.feature-desc {
    color: #b0b0b0;
    line-height: 1.6;
}

/* 技术栈 */
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin-top: 40px;
}

.tech-item {
    background: #2d2d2d;
    padding: 12px 25px;
    border-radius: 25px;
    font-weight: 500;
    color: #e0e0e0;
    border: 2px solid #444;
}

/* 页脚 */
footer {
    text-align: center;
    padding: 40px 20px;
    background: #1e1e1e;
    color: #b0b0b0;
    border-top: 1px solid #333;
}

.footer-links {
    margin-top: 20px;
}

.footer-links a {
    color: #4fc9ff;
    text-decoration: none;
    margin: 0 15px;
    font-weight: 500;
}

.footer-links a:hover {
    text-decoration: underline;
    color: #2196F3;
}

/* 教程按钮样式 */
.tutorial-button {
    display: inline-block;
    margin-top: 20px;
    padding: 10px 25px;
    background: rgba(79, 201, 255, 0.2);
    color: #4fc9ff;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: background 0.3s, color 0.3s;
    border: 1px solid rgba(79, 201, 255, 0.3);
}

.tutorial-button:hover {
    background: #4fc9ff;
    color: white;
}

/* 教程内容样式 */
.tutorial-content {
    margin-top: 20px;
    text-align: left;
}

.tutorial-content h4 {
    color: #ffffff;
    margin: 25px 0 15px;
    font-size: 1.3rem;
}

.tutorial-content p {
    margin-bottom: 15px;
    line-height: 1.6;
    color: #cccccc;
}

.tutorial-content pre {
    background: #1e1e1e;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 15px 0;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
    border: 1px solid #333;
    color: #d4d4d4;
}

.tutorial-content code {
    background: #2d2d2d;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
    color: #d4d4d4;
    border: 1px solid #444;
}

.tutorial-content ul, .tutorial-content ol {
    margin-left: 20px;
    margin-bottom: 15px;
    color: #cccccc;
}

.tutorial-content li {
    margin-bottom: 8px;
}

.tutorial-content strong {
    color: #ffffff;
}

.tutorial-content em {
    color: #b0b0b0;
    font-style: italic;
}

/* 资源网格 */
.resource-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.resource-category {
    background: #1e1e1e;
    border-radius: 15px;
    padding: 30px;
    border: 1px solid #333;
}

.resource-category h3 {
    color: #4fc9ff;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.resource-list {
    list-style: none;
}

.resource-list li {
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #333;
}

.resource-list li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.resource-list a {
    color: #e0e0e0;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: color 0.3s ease;
}

.resource-list a:hover {
    color: #4fc9ff;
}

.resource-list .link-icon {
    color: #4fc9ff;
    font-size: 1.2rem;
}

/* 键盘导航样式 */
.keyboard-navigation a:focus,
.keyboard-navigation button:focus,
.keyboard-navigation input:focus {
    outline: 2px solid #4fc9ff;
    outline-offset: 2px;
}

/* 滚动到顶部按钮 */
#scrollTopBtn.visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

#scrollTopBtn:hover {
    transform: scale(1.1) !important;
    box-shadow: 0 8px 25px rgba(79, 201, 255, 0.4) !important;
}

/* 页面进度条 */
#pageProgress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #4fc9ff, #2196F3);
    z-index: 2000;
    transition: width 0.2s;
}

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

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.feature-card {
    animation: fadeIn 0.5s ease forwards;
}

/* 悬停效果增强 */
.feature-card:hover {
    transform: translateY(-10px) !important;
    box-shadow: 0 20px 40px rgba(79, 201, 255, 0.25) !important;
}

/* 按钮动画 */
.cta-button, .tutorial-button {
    position: relative;
    overflow: hidden;
}

.cta-button::after, .tutorial-button::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.cta-button:focus:not(:active)::after,
.tutorial-button:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    20% {
        transform: scale(25, 25);
        opacity: 0.3;
    }
    100% {
        opacity: 0;
        transform: scale(40, 40);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(30, 30, 30, 0.98);
        padding: 20px;
        border-top: 1px solid #333;
        backdrop-filter: blur(10px);
    }
    
    .nav-menu.active {
        display: flex;
        animation: slideDown 0.3s ease;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .menu-toggle {
        display: block;
        transition: transform 0.3s ease;
    }
    
    .menu-toggle.active {
        transform: rotate(90deg);
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .section h2 {
        font-size: 2rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .resource-grid {
        grid-template-columns: 1fr;
    }
    
    #scrollTopBtn {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .search-container {
        display: none;
    }
    
    .quick-nav {
        gap: 10px;
    }
    
    .quick-nav-item {
        min-width: 100px;
        padding: 10px 15px;
    }
    
    .table-of-contents {
        width: 90vw;
        right: 5vw;
        left: 5vw;
        top: 80px;
        transform: translateY(-150%);
    }
    
    .table-of-contents.active {
        transform: translateY(0);
    }
    
    .toc-button {
        top: 80px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .cta-button {
        padding: 12px 30px;
        font-size: 1rem;
    }
    
    .feature-card {
        padding: 20px;
    }
    
    .tech-item {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
    
    .feature-icon {
        font-size: 2.5rem;
    }
    
    .feature-title {
        font-size: 1.3rem;
    }
    
    .intro-text {
        font-size: 1rem;
    }
    
    .quick-nav {
        flex-direction: column;
        align-items: center;
    }
    
    .quick-nav-item {
        width: 80%;
        max-width: 200px;
    }
    
    .breadcrumb {
        margin-top: 60px;
        padding: 10px 0;
        font-size: 0.8rem;
    }
}

/* 深色模式优化 */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #0a0a0a;
    }
    
    .feature-card {
        background: #1a1a1a;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .cta-button,
    .tutorial-button,
    #scrollTopBtn,
    #pageProgress {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .feature-card {
        border: 1px solid #ddd !important;
        box-shadow: none !important;
        break-inside: avoid;
    }
}
/* 公告弹窗样式 */
.announcement-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

.announcement-modal.show {
    display: flex;
}

.modal-content {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 16px;
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    overflow-y: auto;
    border: 1px solid rgba(79, 201, 255, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.4s ease;
}

.modal-header {
    padding: 25px 30px;
    border-bottom: 1px solid rgba(79, 201, 255, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(18, 18, 18, 0.8);
    border-radius: 16px 16px 0 0;
}

.modal-header h2 {
    color: #4fc9ff;
    font-size: 1.8rem;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.close-modal {
    background: none;
    border: none;
    color: #b0b0b0;
    font-size: 1.5rem;
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-modal:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    transform: rotate(90deg);
}

.modal-body {
    padding: 30px;
}

.announcement-item {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.announcement-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.announcement-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    background: rgba(79, 201, 255, 0.15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.announcement-text h3 {
    color: #fff;
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.announcement-text p {
    color: #b0b0b0;
    line-height: 1.7;
    margin-bottom: 10px;
}

.contact-list {
    list-style: none;
    margin-top: 10px;
}

.contact-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    color: #b0b0b0;
}

.contact-icon {
    color: #4fc9ff;
    font-size: 1.2rem;
}

.modal-footer {
    padding: 20px 30px;
    border-top: 1px solid rgba(79, 201, 255, 0.2);
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    background: rgba(18, 18, 18, 0.8);
    border-radius: 0 0 16px 16px;
}

.modal-button {
    padding: 12px 24px;
    border-radius: 8px;
    border: 1px solid rgba(79, 201, 255, 0.3);
    background: rgba(79, 201, 255, 0.1);
    color: #4fc9ff;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-button:hover {
    background: rgba(79, 201, 255, 0.2);
    transform: translateY(-2px);
}

.modal-button.primary {
    background: #4fc9ff;
    color: #121212;
    border-color: #4fc9ff;
}

.modal-button.primary:hover {
    background: #2196F3;
    border-color: #2196F3;
    transform: translateY(-2px);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        max-height: 90vh;
    }
    
    .modal-header {
        padding: 20px;
    }
    
    .modal-body {
        padding: 20px;
    }
    
    .announcement-item {
        flex-direction: column;
        gap: 15px;
    }
    
    .announcement-icon {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .modal-footer {
        padding: 15px 20px;
        flex-direction: column;
    }
    
    .modal-button {
        width: 100%;
    }
}


/* 状态消息样式 */
.status-message {
    padding: 15px 20px;
    border-radius: 8px;
    margin: 10px 0;
    font-weight: 500;
    display: none;
    animation: slideInRight 0.3s ease;
}

.status-message.status-info {
    background: rgba(79, 201, 255, 0.15);
    border: 1px solid rgba(79, 201, 255, 0.3);
    color: #4fc9ff;
}

.status-message.status-success {
    background: rgba(76, 175, 80, 0.15);
    border: 1px solid rgba(76, 175, 80, 0.3);
    color: #4CAF50;
}

.status-message.status-error {
    background: rgba(244, 67, 54, 0.15);
    border: 1px solid rgba(244, 67, 54, 0.3);
    color: #F44336;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}


.document-source p {
    color: #b0b0b0;
    margin: 0;
    font-size: 0.95rem;
}

.document-source a {
    color: #4fc9ff;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.document-source a:hover {
    color: #2196F3;
    text-decoration: underline;
}


/* 链接描述样式 */
.link-description {
    color: #888;
    font-size: 0.85rem;
    margin: 5px 0 0 30px;
    line-height: 1.4;
    max-width: 600px;
}

/* 提示项样式 */
.tip-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
}

.tip-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.tip-text {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.4;
}