/* ===== CSS变量定义 ===== */
:root {
    /* 主题色彩 */
    --primary-color: #e3e2ce;
    --secondary-color: #b9bb8d;
    --accent-color: #b1cbd7;
    --highlight-color: #ed94b7;
    
    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    --gradient-secondary: linear-gradient(135deg, var(--accent-color), var(--highlight-color));
    --gradient-overlay: linear-gradient(135deg, rgba(227, 226, 206, 0.9), rgba(185, 187, 141, 0.9));
    
    /* 文字颜色 */
    --text-primary: #2c2c2c;
    --text-secondary: #666666;
    --text-light: #999999;
    --text-white: #ffffff;
    
    /* 背景颜色 */
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --bg-dark: #2c2c2c;
    --bg-overlay: rgba(0, 0, 0, 0.7);
    
    /* 边框和阴影 */
    --border-color: #e0e0e0;
    --shadow-small: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-large: 0 8px 32px rgba(0, 0, 0, 0.2);
    
    /* 字体 */
    --font-primary: 'Noto Sans SC', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* 边框圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* 过渡动画 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

button {
    border: none;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition-fast);
}

/* ===== 通用样式 ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 按钮样式 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: 1rem;
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    text-decoration: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-normal);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-secondary);
    color: var(--text-white);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-large);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--secondary-color);
}

.btn-secondary:hover {
    background: var(--secondary-color);
    color: var(--text-white);
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.9rem;
}

.btn-download {
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    position: relative;
    overflow: hidden;
}

.btn-download::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    transform: translate(-50%, -50%);
    transition: all 0.6s ease;
    border-radius: 50%;
}

.btn-download:hover::after {
    width: 300px;
    height: 300px;
}

.btn-download {
    animation: btnPulse 2s ease-in-out infinite;
}

.btn-subtitle {
    font-size: 0.8rem;
    opacity: 0.9;
    margin-top: 2px;
}

/* ===== 头部导航 ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.navbar {
    padding: var(--spacing-sm) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-sm);
    flex-wrap: nowrap;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    white-space: nowrap;
    font-size: 0.9rem;
}

.nav-link:hover {
    background: var(--gradient-primary);
    color: var(--text-white);
}

.nav-hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.nav-hamburger .bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* ===== 英雄区 ===== */
.hero {
    min-height: 65vh;
    padding: calc(80px + var(--spacing-md)) 0 var(--spacing-md);
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="c" cx="50%" cy="50%" r="50%"><stop offset="0%" stop-color="%23ffffff" stop-opacity="0.15"/><stop offset="100%" stop-color="%23ffffff" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="150" fill="url(%23c)"/><circle cx="800" cy="300" r="100" fill="url(%23c)"/><circle cx="400" cy="700" r="120" fill="url(%23c)"/></svg>');
    opacity: 0.4;
    animation: heroFloat 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 70%, rgba(237, 148, 183, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(177, 203, 215, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 50% 50%, rgba(185, 187, 141, 0.05) 0%, transparent 70%);
    animation: heroRotate 20s linear infinite;
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    position: relative;
}

.hero-content {
    z-index: 2;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--text-white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: heroTitleGlow 3s ease-in-out infinite alternate;
}

.hero-subtitle {
    font-size: 1.6rem;
    font-weight: 300;
    margin-bottom: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.9);
    font-family: var(--font-secondary);
    animation: heroSubtitleFloat 4s ease-in-out infinite;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
}

.hero-info {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.version-info, .release-info, .size-info {
    display: flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.version-label, .release-label, .size-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2px;
}

.version-number, .release-platform, .size-number {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-white);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

.hero-card {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-large);
    transform: perspective(1000px) rotateY(-5deg);
    transition: var(--transition-slow);
    animation: heroCardFloat 6s ease-in-out infinite;
    position: relative;
}

.hero-card::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, 
        rgba(237, 148, 183, 0.3), 
        rgba(177, 203, 215, 0.3), 
        rgba(185, 187, 141, 0.3), 
        rgba(227, 226, 206, 0.3));
    border-radius: var(--radius-xl);
    z-index: -1;
    filter: blur(8px);
    animation: heroCardGlow 4s ease-in-out infinite alternate;
}

.hero-card:hover {
    transform: perspective(1000px) rotateY(0deg) scale(1.05);
    animation-play-state: paused;
}

.hero-screenshot {
    border-radius: var(--radius-lg);
    max-width: 380px;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-base);
}

/* ===== 游戏特色 ===== */
.features {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-small);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-secondary);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-large);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    font-size: 1.5rem;
    color: var(--text-white);
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== 游戏截图画廊 ===== */
.gallery {
    padding: var(--spacing-xl) 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-normal);
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-large);
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition-normal);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-btn {
    background: var(--gradient-secondary);
    color: var(--text-white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

/* ===== 最新动态 ===== */
.news {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
}

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

.news-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-small);
    transition: var(--transition-normal);
    display: flex;
    gap: var(--spacing-sm);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.news-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--gradient-secondary);
    color: var(--text-white);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    min-width: 60px;
    text-align: center;
}

.news-day {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.news-month {
    font-size: 0.9rem;
    opacity: 0.9;
}

.news-content {
    flex: 1;
}

.news-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.news-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.news-category {
    background: var(--primary-color);
    color: var(--text-primary);
    padding: 4px var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
}

.news-link {
    color: var(--highlight-color);
    font-weight: 500;
    text-decoration: underline;
}

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

/* ===== 用户评价 ===== */
.reviews {
    padding: var(--spacing-xl) 0;
}

.reviews-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.rating-overview {
    text-align: center;
}

.rating-score {
    font-size: 3rem;
    font-weight: 700;
    color: var(--highlight-color);
    margin-bottom: var(--spacing-xs);
}

.rating-stars {
    font-size: 1.5rem;
    color: #ffc107;
    margin-bottom: var(--spacing-xs);
}

.rating-count {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.rating-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.tag {
    background: var(--gradient-primary);
    color: var(--text-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-lg);
    font-size: 0.9rem;
    font-weight: 500;
}

.reviews-carousel {
    position: relative;
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
}

.review-card {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-medium);
    display: none;
    opacity: 0;
    transition: var(--transition-normal);
}

.review-card.active {
    display: block;
    opacity: 1;
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.reviewer-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.reviewer-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-secondary);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.reviewer-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.review-rating {
    color: #ffc107;
}

.review-date {
    color: var(--text-light);
    font-size: 0.9rem;
}

.review-text {
    color: var(--text-secondary);
    line-height: 1.8;
    font-style: italic;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.carousel-btn {
    width: 40px;
    height: 40px;
    background: var(--gradient-secondary);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.carousel-btn:hover {
    transform: scale(1.1);
}

/* ===== 版本历史 ===== */
.versions {
    padding: var(--spacing-xl) 0;
    background: var(--bg-secondary);
}

.version-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.version-timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-secondary);
}

.version-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    padding-left: 60px;
}

.version-marker {
    position: absolute;
    left: 12px;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--highlight-color);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
}

.version-content {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-small);
    transition: var(--transition-normal);
}

.version-content:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-medium);
}

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

.version-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--highlight-color);
}

.version-date {
    background: var(--primary-color);
    color: var(--text-primary);
    padding: 4px var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
}

.version-size {
    background: var(--accent-color);
    color: var(--text-white);
    padding: 4px var(--spacing-xs);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
}

.version-features h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.version-features ul {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-sm);
}

.version-features li {
    color: var(--text-secondary);
    margin-bottom: 4px;
    line-height: 1.6;
}

.version-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.version-platform {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===== 常见问题 ===== */
.faq {
    padding: var(--spacing-xl) 0;
}

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

.faq-item {
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-sm);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-sm) 0;
    background: none;
    border: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.faq-question:hover {
    color: var(--highlight-color);
}

.faq-question i {
    transition: var(--transition-fast);
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
    padding-bottom: 0;
    opacity: 0;
}

.faq-answer.active {
    max-height: 1000px;
    padding-bottom: var(--spacing-sm);
    opacity: 1;
}

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

/* ===== 底部信息 ===== */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-subtitle {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-white);
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

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

.social-link {
    width: 40px;
    height: 40px;
    background: var(--gradient-secondary);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.social-link:hover {
    transform: scale(1.1);
}

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

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-copyright p {
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.footer-copyright a {
    color: var(--highlight-color);
    text-decoration: underline;
}

.footer-info p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

/* ===== 返回顶部按钮 ===== */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: var(--gradient-secondary);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: scale(1.1);
}

/* ===== 图片灯箱 ===== */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    color: var(--text-white);
    font-size: 2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.lightbox-content img {
    max-width: 100%;
    max-height: 100%;
    border-radius: var(--radius-md);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    width: 100%;
    padding: 0 -50px;
}

.lightbox-prev,
.lightbox-next {
    background: rgba(0, 0, 0, 0.5);
    color: var(--text-white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition-fast);
}

.lightbox-prev {
    left: -60px;
}

.lightbox-next {
    right: -60px;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(0, 0, 0, 0.8);
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
    .nav-menu {
        gap: var(--spacing-xs);
    }
    
    .nav-link {
        padding: var(--spacing-xs);
        font-size: 0.85rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-info {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-primary);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-large);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-hamburger {
        display: flex;
    }
    
    .nav-hamburger.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .nav-hamburger.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero {
        min-height: 55vh;
        text-align: center;
        padding: calc(80px + var(--spacing-sm)) 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.3rem;
    }
    
    .hero-info {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: var(--spacing-xs);
        flex-wrap: nowrap;
    }
    
    .version-info, .release-info, .size-info {
        flex: 1;
        min-width: 0;
        text-align: center;
    }
    
    .version-label, .release-label, .size-label {
        font-size: 0.7rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .version-number, .release-platform, .size-number {
        font-size: 0.9rem;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-sm);
    }
    
    .feature-card {
        padding: var(--spacing-md);
    }
    
    .feature-title {
        font-size: 1.1rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .feature-description {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    .feature-icon {
        margin-bottom: var(--spacing-xs);
    }
    
    .feature-icon i {
        font-size: 1.8rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .rating-tags {
        justify-content: center;
    }
    
    .version-item {
        padding-left: 40px;
    }
    
    .version-timeline::before {
        left: 12px;
    }
    
    .version-marker {
        left: 4px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .lightbox-nav {
        position: static;
        margin-top: var(--spacing-sm);
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .lightbox-prev,
    .lightbox-next {
        position: static;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-sm: 0.8rem;
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .version-info, .release-info, .size-info {
        padding: 6px;
    }
    
    .version-label, .release-label, .size-label {
        font-size: 0.6rem;
    }
    
    .version-number, .release-platform, .size-number {
        font-size: 0.8rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.9rem;
    }
    
    .feature-card {
        padding: var(--spacing-sm);
    }
    
    .feature-title {
        font-size: 1rem;
        margin-bottom: 4px;
    }
    
    .feature-description {
        font-size: 0.8rem;
        line-height: 1.4;
    }
    
    .feature-icon i {
        font-size: 1.5rem;
    }
    
    .gallery-item img {
        height: 200px;
    }
    
    .news-card {
        flex-direction: column;
        text-align: center;
    }
    
    .news-date {
        align-self: center;
        margin-bottom: var(--spacing-sm);
    }
    
    .version-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .version-actions {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ===== 懒加载图片动画 ===== */
img[loading="lazy"] {
    opacity: 1;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

/* ===== 滚动动画 ===== */
@keyframes fadeInUp {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 1;
    animation: none;
}

/* ===== 英雄区动画 ===== */
@keyframes heroFloat {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    33% {
        transform: translateY(-10px) rotate(1deg);
    }
    66% {
        transform: translateY(5px) rotate(-0.5deg);
    }
}

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

@keyframes heroTitleGlow {
    0% {
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3), 0 0 20px rgba(255, 255, 255, 0.1);
    }
    100% {
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3), 0 0 30px rgba(255, 255, 255, 0.2);
    }
}

@keyframes heroSubtitleFloat {
    0%, 100% {
        transform: translateY(0px);
        opacity: 0.9;
    }
    50% {
        transform: translateY(-3px);
        opacity: 1;
    }
}

@keyframes heroCardFloat {
    0%, 100% {
        transform: perspective(1000px) rotateY(-5deg) translateY(0px);
    }
    50% {
        transform: perspective(1000px) rotateY(-5deg) translateY(-8px);
    }
}

@keyframes heroCardGlow {
    0% {
        opacity: 0.3;
        filter: blur(8px);
    }
    100% {
        opacity: 0.6;
        filter: blur(12px);
    }
}

@keyframes btnPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    }
    50% {
        transform: scale(1.02);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3), 0 0 30px rgba(237, 148, 183, 0.3);
    }
}

/* ===== 自定义滚动条 ===== */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--gradient-secondary);
    border-radius: 4px;
}

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

/* ===== 选择文本样式 ===== */
::selection {
    background: var(--highlight-color);
    color: var(--text-white);
}

::-moz-selection {
    background: var(--highlight-color);
    color: var(--text-white);
}

/* ===== 焦点样式 ===== */
button:focus,
a:focus {
    outline: 2px solid var(--highlight-color);
    outline-offset: 2px;
}

/* ===== 页面专用样式 ===== */
.main-content {
    padding-top: 80px;
    min-height: calc(100vh - 80px);
}

.page-hero {
    background: var(--gradient-primary);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
}

.page-header {
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.content-section {
    padding: var(--spacing-xl) 0;
    background: var(--bg-primary);
}

/* ===== 用户手册样式 ===== */
.manual-content {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.manual-nav {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.manual-nav h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.manual-nav ul {
    list-style: none;
}

.manual-nav li {
    margin-bottom: var(--spacing-xs);
}

.manual-nav a {
    color: var(--text-secondary);
    padding: var(--spacing-xs) 0;
    display: block;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.manual-nav a:hover {
    color: var(--highlight-color);
    padding-left: var(--spacing-xs);
}

.manual-sections {
    background: var(--bg-primary);
}

.manual-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-small);
}

.manual-section h2 {
    color: var(--text-primary);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-color);
}

.manual-section h2 i {
    color: var(--highlight-color);
    margin-right: var(--spacing-xs);
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.requirement-card {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-color);
}

.requirement-card h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

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

.requirement-card li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.step-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--gradient-secondary);
    color: var(--text-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-content h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.control-category {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.control-category h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.control-category ul {
    list-style: none;
}

.control-category li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.control-category strong {
    color: var(--highlight-color);
}

.features-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-item {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

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

.feature-item h4 i {
    color: var(--highlight-color);
    margin-right: var(--spacing-xs);
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.troubleshooting-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.trouble-item {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--highlight-color);
}

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

.trouble-item ul {
    list-style: disc;
    padding-left: var(--spacing-md);
}

.trouble-item li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

/* ===== 响应式设计 - 页面专用 ===== */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .manual-content {
        grid-template-columns: 1fr;
    }
    
    .manual-nav {
        position: static;
        order: 2;
        margin-top: var(--spacing-lg);
    }
    
    .requirements-grid,
    .controls-grid,
    .features-list {
        grid-template-columns: 1fr;
    }
    
    .step-item {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 2rem;
    }
    
    .manual-section {
        padding: var(--spacing-md);
    }
    
    .step-number {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
}

/* ===== 技术支持页面样式 ===== */
.support-content {
    max-width: 1000px;
    margin: 0 auto;
}

.support-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.support-card {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-small);
    transition: var(--transition-normal);
}

.support-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.support-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    font-size: 1.5rem;
    color: var(--text-white);
}

.support-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

.support-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.support-section {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-small);
    margin-bottom: var(--spacing-lg);
}

.support-section h2 {
    color: var(--text-primary);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-color);
}

.support-section h2 i {
    color: var(--highlight-color);
    margin-right: var(--spacing-xs);
}

.troubleshoot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-md);
}

.troubleshoot-item {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--highlight-color);
}

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

.troubleshoot-item h4 i {
    color: var(--highlight-color);
    margin-right: var(--spacing-xs);
}

.solution-steps p {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.solution-steps ul,
.solution-steps ol {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
}

.solution-steps li {
    color: var(--text-secondary);
    margin-bottom: 4px;
    line-height: 1.6;
}

.system-check {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

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

.spec-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--border-color);
}

.spec-label {
    color: var(--text-primary);
    font-weight: 600;
}

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

.support-hours {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

.hours-info h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.hours-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.hours-info ul {
    list-style: none;
    margin-bottom: var(--spacing-sm);
}

.hours-info li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.hours-info strong {
    color: var(--text-primary);
}

.note {
    background: rgba(237, 148, 183, 0.1);
    border: 1px solid var(--highlight-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.note i {
    color: var(--highlight-color);
    margin-right: var(--spacing-xs);
}

/* ===== 联系我们页面样式 ===== */
.contact-content {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.contact-card {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-small);
    transition: var(--transition-normal);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    font-size: 1.5rem;
    color: var(--text-white);
}

.contact-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

.contact-card > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.contact-info {
    text-align: left;
    background: var(--bg-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.contact-info strong {
    color: var(--text-primary);
}

.contact-info a {
    color: var(--highlight-color);
    text-decoration: underline;
}

.contact-info a:hover {
    color: var(--accent-color);
}

.contact-section {
    background: var(--bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-small);
    margin-bottom: var(--spacing-lg);
}

.contact-section h2 {
    color: var(--text-primary);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--primary-color);
}

.contact-section h2 i {
    color: var(--highlight-color);
    margin-right: var(--spacing-xs);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--highlight-color);
    box-shadow: 0 0 0 3px rgba(237, 148, 183, 0.1);
}

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

.company-info {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
}

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

.info-item h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

.info-item h4 i {
    color: var(--highlight-color);
    margin-right: var(--spacing-xs);
}

.info-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.info-item a {
    color: var(--highlight-color);
    text-decoration: underline;
}

.business-info > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.cooperation-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.cooperation-item {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
}

.cooperation-item h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

.cooperation-item h4 i {
    color: var(--highlight-color);
    margin-right: var(--spacing-xs);
}

.cooperation-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.business-contact {
    background: rgba(237, 148, 183, 0.1);
    border: 1px solid var(--highlight-color);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
}

.business-contact p {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.business-contact strong {
    color: var(--text-primary);
}

.business-contact a {
    color: var(--highlight-color);
    text-decoration: underline;
}

/* ===== 响应式设计 - 新页面 ===== */
@media (max-width: 768px) {
    .support-options,
    .contact-methods {
        grid-template-columns: 1fr;
    }
    
    .troubleshoot-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .info-grid,
    .cooperation-types {
        grid-template-columns: 1fr;
    }
    
    .spec-item {
        flex-direction: column;
        gap: 4px;
    }
}

/* ===== 打印样式 ===== */
@media print {
    .header,
    .back-to-top,
    .lightbox {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .hero {
        background: none !important;
        color: black !important;
    }
}