/* 全局样式 - 暗色主题 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-card: #242424;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --accent-color: #4a9eff;
    --accent-hover: #6bb3ff;
    --border-color: #3a3a3a;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 12px rgba(0, 0, 0, 0.4);
}

body {
    font-family: 'Microsoft YaHei', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, #0f0f0f 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

body.menu-open {
    overflow: hidden;
}

/* 导航栏 */
.navbar {
    background: var(--bg-secondary);
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--accent-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 2rem;
}

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

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 1rem;
}

.nav-link:hover {
    color: var(--accent-color);
}

/* 英雄区域 */
.hero {
    text-align: center;
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    transition: all 0.3s;
    box-shadow: var(--shadow);
}

.cta-button:hover {
    background: var(--accent-hover);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

/* 下载按钮组 */
.download-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.download-buttons .cta-button {
    flex: 1;
    min-width: 180px;
    max-width: 220px;
    text-align: center;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.download-buttons .cta-button.primary {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.download-buttons .cta-button:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.download-buttons .cta-button.primary:hover {
    background: var(--accent-hover);
    color: white;
    border-color: var(--accent-hover);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .download-buttons .cta-button {
        width: 100%;
        max-width: 300px;
    }
}

/* 功能区域 */
.features {
    padding: 3rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 工具列表区域 */
.tools {
    padding: 3rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.tool-item {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.tool-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-color);
}

.tool-item h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.tool-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.tool-tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--bg-secondary);
    color: var(--accent-color);
    border-radius: 5px;
    font-size: 0.8rem;
    margin-top: 0.5rem;
}

/* 下载区域 */
.download {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.2rem 2.5rem;
    background: var(--bg-card);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    transition: all 0.3s;
    box-shadow: var(--shadow);
    border: 2px solid var(--border-color);
}

.download-btn:hover {
    background: var(--accent-color);
    color: white;
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
    border-color: var(--accent-color);
}

.download-icon {
    font-size: 1.5rem;
}

/* 页脚 */
.footer {
    background: var(--bg-secondary);
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
}

.footer p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1rem;
}

.social-link {
    color: var(--text-secondary);
    font-size: 1.5rem;
    transition: color 0.3s;
}

.social-link:hover {
    color: var(--accent-color);
}

/* 汉堡菜单按钮 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all 0.3s ease;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .navbar {
        padding: 1rem;
    }

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

    .nav-menu {
        position: fixed;
        top: 73px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 73px);
        background: var(--bg-secondary);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        gap: 2rem;
        padding-top: 2rem;
        transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow);
        z-index: 999;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: -1;
        opacity: 0;
        transition: opacity 0.3s ease;
        pointer-events: none;
    }

    .nav-menu.active::before {
        opacity: 1;
    }

    .nav-menu li {
        width: 100%;
        text-align: center;
    }

    .nav-link {
        display: block;
        padding: 1rem 2rem;
        font-size: 1.1rem;
        border-radius: 8px;
        margin: 0 1rem;
        transition: all 0.3s ease;
    }

    .nav-link:hover {
        background: var(--bg-card);
    }

    .features-grid,
    .tools-grid {
        grid-template-columns: 1fr;
    }

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

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-secondary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* 额外的工具样式类 */
.hero-badges {
    margin: 1.5rem 0;
    color: var(--text-secondary);
}

.hero-badges span {
    margin: 0 1rem;
}

.section-description {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.tool-category-title {
    color: var(--accent-color);
    margin: 2rem 0 1rem 0;
    font-size: 1.5rem;
}

.tool-count-note {
    text-align: center;
    margin-top: 2rem;
}

.tool-count-note p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.tool-count-note strong {
    color: var(--accent-color);
}

.download-subtitle {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.download-version-info {
    margin: 1rem 0 2rem 0;
}

.download-version-info span {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.download-version-info .version-number {
    color: var(--accent-color);
    font-size: 1.1rem;
    font-weight: bold;
}

.download-version-info .divider {
    margin: 0 0.8rem;
}

/* 英雄区域中的版本信息样式 */
.hero .download-version-info {
    margin: 1.5rem 0;
}

.hero .download-version-info span {
    font-size: 0.9rem;
}

.hero .download-version-info .version-number {
    font-size: 1rem;
}

.download-info-box {
    max-width: 800px;
    margin: 3rem auto;
    padding: 2rem;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: left;
}

.download-info-box h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.download-info-box h3:not(:first-child) {
    margin-top: 2rem;
}

.download-info-box ul {
    color: var(--text-secondary);
    line-height: 2;
    list-style: none;
    padding: 0;
}

.download-info-box ol {
    color: var(--text-secondary);
    line-height: 2;
}

.update-log {
    margin-top: 2rem;
}

.update-log h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.update-log ul {
    color: var(--text-secondary);
    line-height: 2;
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.stats-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.stats-container>p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.stats-grid {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

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

.stat-number {
    font-size: 2.5rem;
    color: var(--accent-color);
    font-weight: bold;
}

.stat-label {
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.scene-features {
    margin-top: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1.5rem;
    text-align: left;
}

.faq-item h3 {
    color: var(--accent-color);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

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

.footer-section h4 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
    padding: 0;
    line-height: 2;
}

.footer-section li {
    color: var(--text-secondary);
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2rem 0;
}