/**
 * 梦呓像素官网样式表
 * 现代、优雅、富有动感的设计风格
 */

/* ===================================
   全局样式与CSS变量
   =================================== */
:root {
    /* 主色调 */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    
    /* 渐变色 */
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-4: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --gradient-5: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --gradient-6: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
    
    /* 中性色 */
    --bg-color: #0f0f1e;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #252538;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b7f;
    
    /* 边框和阴影 */
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* 动画 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", 
                 "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   导航栏
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 15, 30, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    font-size: 1.25rem;
}

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

.logo-icon-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    position: relative;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

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

/* ===================================
   英雄区块
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.animated-gradient {
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
    opacity: 0.1;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { filter: hue-rotate(0deg); }
    50% { filter: hue-rotate(60deg); }
}

.hero-content {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-lg);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-color);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

/* ===================================
   功能特性区块
   =================================== */
.features {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.feature-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.feature-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

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

.feature-list li {
    color: var(--text-secondary);
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.feature-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.tag {
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
}

.tech-specs {
    display: grid;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
}

.spec-label {
    color: var(--text-secondary);
}

.spec-value {
    color: var(--primary-light);
    font-weight: 600;
}

/* ===================================
   壁纸展示区块
   =================================== */
.wallpapers {
    padding: var(--spacing-xl) 0;
}

.wallpaper-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.wallpaper-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.wallpaper-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.wallpaper-preview {
    aspect-ratio: 16/9;
    overflow: hidden;
    position: relative;
    background: rgba(0, 0, 0, 0.3);
}

.wallpaper-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform var(--transition-slow);
}

.wallpaper-item:hover .wallpaper-preview img {
    transform: scale(1.1);
}

.wallpaper-placeholder {
    width: 100%;
    height: 100%;
    transition: transform var(--transition-slow);
}

.wallpaper-item:hover .wallpaper-placeholder {
    transform: scale(1.1);
}

.gradient-1 { background: var(--gradient-1); }
.gradient-2 { background: var(--gradient-2); }
.gradient-3 { background: var(--gradient-3); }
.gradient-4 { background: var(--gradient-4); }
.gradient-5 { background: var(--gradient-5); }
.gradient-6 { background: var(--gradient-6); }

.wallpaper-info {
    padding: var(--spacing-sm);
}

.wallpaper-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.wallpaper-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

.wallpaper-tag {
    display: inline-block;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary-light);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
}

.wallpaper-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
}

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

/* ===================================
   灵感实验室区块
   =================================== */
.playground {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
}

.playground-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.playground-subtitle {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-light);
}

.playground-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.playground-examples h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.example-prompts {
    display: grid;
    gap: var(--spacing-sm);
}

.prompt-card {
    display: flex;
    gap: var(--spacing-sm);
    align-items: start;
    background: var(--bg-tertiary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.prompt-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.prompt-card p {
    color: var(--text-secondary);
    margin: 0;
}

.playground-features {
    margin-top: var(--spacing-md);
    display: grid;
    gap: var(--spacing-xs);
}

.playground-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
}

.feature-check {
    color: var(--primary-color);
    font-weight: bold;
}

.playground-visual {
    display: flex;
    justify-content: center;
}

.playground-demo {
    width: 100%;
    max-width: 500px;
}

.demo-window {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.demo-header {
    background: var(--bg-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    display: flex;
    gap: 0.5rem;
}

.demo-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-muted);
}

.demo-content {
    padding: var(--spacing-md);
}

.demo-input {
    background: var(--bg-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
}

.typing-indicator {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.typing-text {
    color: var(--text-primary);
}

.cursor {
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.demo-output {
    background: var(--bg-color);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.code-preview {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

.code-line {
    color: var(--text-secondary);
    margin: 0.25rem 0;
}

.code-keyword {
    color: #ff79c6;
}

.code-function {
    color: #50fa7b;
}

/* ===================================
   下载区块
   =================================== */
.download {
    padding: var(--spacing-xl) 0;
}

.download-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.download-version {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.version-badge {
    background: var(--gradient-1);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1.25rem;
}

.version-label {
    color: var(--text-secondary);
}

.download-specs {
    display: grid;
    gap: var(--spacing-xs);
}

.spec {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
}

.spec-icon {
    font-size: 1.25rem;
}

.download-actions {
    text-align: center;
}

.btn-download {
    background: var(--gradient-1);
    color: white;
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
    box-shadow: var(--shadow-glow);
}

.btn-download:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.6);
}

.download-note {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
}

.system-requirements {
    margin-top: var(--spacing-xl);
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
}

.system-requirements h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.requirements-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.requirement-column h4 {
    color: var(--primary-light);
    margin-bottom: var(--spacing-sm);
}

.requirement-column ul {
    list-style: none;
}

.requirement-column li {
    color: var(--text-secondary);
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.requirement-column li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* ===================================
   页脚
   =================================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.25rem;
    font-weight: 600;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-size: 1rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-size: 0.9rem;
}

.footer-column a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-meta {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-meta a {
    color: var(--text-muted);
    text-decoration: none;
}

.footer-meta a:hover {
    color: var(--text-secondary);
}

/* ===================================
   响应式设计
   =================================== */
@media (max-width: 768px) {
    /* 导航栏优化 */
    .navbar {
        padding: 0.75rem 0;
    }

    .navbar .container {
        position: relative;
    }

    .logo {
        font-size: 1rem;
        gap: 0.375rem;
    }

    .logo-icon-img {
        width: 24px;
        height: 24px;
    }

    .logo-text {
        font-size: 1rem;
    }

    .logo-sub {
        font-size: 0.65rem;
    }

    /* 移动端菜单按钮显示 */
    .mobile-menu-toggle {
        display: flex;
    }

    /* 移动端导航菜单 */
    .nav-links {
        position: fixed;
        top: 60px;
        right: -100%;
        width: 250px;
        height: calc(100vh - 60px);
        background: rgba(15, 15, 30, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        border-left: 1px solid var(--border-color);
        transition: right var(--transition-normal);
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.5);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        padding: var(--spacing-sm);
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
    }

    .nav-links a:hover {
        background: rgba(255, 255, 255, 0.05);
    }

    /* 英雄区块优化 */
    .hero {
        padding: 6rem 0 4rem;
    }

    .hero-title {
        font-size: 2rem;
        line-height: 1.2;
    }

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

    .hero-stats {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        justify-content: center;
    }

    .stat-item {
        min-width: 120px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .stat-label {
        font-size: 0.875rem;
    }

    /* 区块标题优化 */
    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    /* 功能卡片优化 */
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .feature-card.featured {
        grid-column: span 1;
    }

    .feature-card {
        padding: var(--spacing-md);
    }

    .feature-title {
        font-size: 1.25rem;
    }

    .feature-description {
        font-size: 0.9rem;
    }

    /* 壁纸网格优化 */
    .wallpaper-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    /* Playground优化 */
    .playground-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .playground-subtitle {
        font-size: 1.25rem;
    }

    .playground-description {
        font-size: 0.95rem;
    }

    .playground-visual {
        display: none; /* 移动端隐藏演示动画 */
    }

    /* 下载区块优化 */
    .download-card {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .requirements-grid {
        grid-template-columns: 1fr;
    }

    /* 页脚优化 */
    .footer {
        padding: var(--spacing-lg) 0 var(--spacing-md);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }

    .footer-brand {
        gap: 0.5rem;
    }

    .footer-tagline {
        font-size: 0.85rem;
    }

    .footer-links {
        grid-template-columns: repeat(3, 1fr); /* 保持3列，更紧凑 */
        gap: var(--spacing-sm);
    }

    .footer-column h4 {
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }

    .footer-column li {
        margin-bottom: 0.375rem;
    }

    .footer-column a {
        font-size: 0.8rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
        padding-top: var(--spacing-sm);
        font-size: 0.8rem;
    }

    .footer-meta {
        gap: 0.5rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    /* 容器内边距 */
    .container {
        padding: 0 var(--spacing-sm);
    }

    /* 导航栏 */
    .navbar {
        padding: 0.5rem 0;
    }

    .logo {
        font-size: 0.9rem;
    }

    .logo-icon-img {
        width: 20px;
        height: 20px;
    }

    .logo-text {
        font-size: 0.9rem;
    }

    .logo-sub {
        display: none; /* 超小屏幕隐藏副标题 */
    }

    /* 英雄区块 */
    .hero {
        padding: 5rem 0 3rem;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-sm);
    }

    .btn {
        width: 100%;
        justify-content: center;
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
    }

    .hero-stats {
        gap: 0.75rem;
    }

    .stat-item {
        min-width: 100px;
    }

    .stat-number {
        font-size: 1.75rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    /* 区块标题 */
    .section-title {
        font-size: 1.75rem;
    }

    .section-subtitle {
        font-size: 0.9rem;
    }

    /* 功能卡片 */
    .feature-card {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .feature-icon {
        font-size: 2.5rem;
    }

    .feature-title {
        font-size: 1.125rem;
    }

    .feature-description {
        font-size: 0.875rem;
    }

    .feature-list li {
        font-size: 0.875rem;
    }

    /* 壁纸卡片 */
    .wallpaper-item {
        border-radius: var(--radius-md);
    }

    .wallpaper-info h3 {
        font-size: 1.125rem;
    }

    .wallpaper-info p {
        font-size: 0.875rem;
    }

    /* Playground */
    .playground-subtitle {
        font-size: 1.125rem;
    }

    .playground-description {
        font-size: 0.875rem;
    }

    .prompt-card p {
        font-size: 0.875rem;
    }

    .playground-feature {
        font-size: 0.875rem;
    }

    /* 下载区块 */
    .download-card {
        padding: var(--spacing-md);
    }

    .version-badge {
        font-size: 0.875rem;
    }

    .spec {
        font-size: 0.875rem;
    }

    /* 系统要求 */
    .requirement-column h4 {
        font-size: 1rem;
    }

    .requirement-column li {
        font-size: 0.875rem;
    }

    /* 页脚进一步压缩 */
    .footer {
        padding: var(--spacing-md) 0 var(--spacing-sm);
    }

    .footer-content {
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }

    .footer-brand {
        gap: 0.25rem;
        text-align: center;
    }

    .footer-logo {
        font-size: 1rem;
        justify-content: center;
    }

    .footer-tagline {
        font-size: 0.75rem;
    }

    .footer-links {
        grid-template-columns: 1fr; /* 超小屏改为单列 */
        gap: 0.75rem;
        text-align: center;
    }

    .footer-column h4 {
        font-size: 0.85rem;
        margin-bottom: 0.375rem;
    }

    .footer-column ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .footer-column li {
        margin-bottom: 0;
    }

    .footer-column li::after {
        content: "·";
        margin-left: 0.5rem;
        color: var(--text-muted);
    }

    .footer-column li:last-child::after {
        content: none;
    }

    .footer-column a {
        font-size: 0.75rem;
    }

    .footer-bottom {
        font-size: 0.7rem;
        padding-top: 0.5rem;
    }

    .footer-meta {
        font-size: 0.7rem;
    }

    .copyright {
        font-size: 0.7rem;
    }
}