/* ==========================================
   永恒世界游戏官网样式表
   ========================================== */

/* CSS变量定义 - 主题色 */
:root {
    --color-primary: #352b2b;
    --color-secondary-1: #c2c2c0;
    --color-secondary-2: #5eb4a7;
    --color-secondary-3: #7d849b;
    --color-accent: #5eb4a7;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #f8f9fa;
    --color-bg-dark: #1a1a1a;
    
    /* 渐变色 */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, #4a3d3d 100%);
    --gradient-accent: linear-gradient(135deg, var(--color-secondary-2) 0%, #4a9488 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(53, 43, 43, 0.95) 0%, rgba(94, 180, 167, 0.85) 100%);
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.2);
    
    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 字体 */
    --font-primary: 'Noto Sans SC', sans-serif;
    --font-heading: 'Rajdhani', 'Noto Sans SC', sans-serif;
}

/* ==========================================
   全局样式
   ========================================== */

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

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

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

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

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

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

ul {
    list-style: none;
}

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

/* ==========================================
   容器和布局
   ========================================== */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--spacing-md);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title i {
    color: var(--color-accent);
    margin-right: var(--spacing-xs);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

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

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    cursor: pointer;
    text-align: center;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-normal), height var(--transition-normal);
    z-index: -1;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

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

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

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

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* ==========================================
   头部导航
   ========================================== */

.header {
    position: sticky;
    top: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
}

.navbar {
    padding: 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-primary);
    transition: transform var(--transition-fast);
    flex-shrink: 0;
}

.logo:hover {
    transform: scale(1.05);
    color: var(--color-primary);
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: nowrap;
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-weight: 500;
    color: var(--color-text);
    padding: 0.5rem 0.6rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
    font-size: 0.95rem;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-fast);
}

.nav-menu a:hover::after {
    width: 80%;
}

.nav-menu a i {
    font-size: 0.875rem;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 30px;
    padding: 5px;
}

.menu-toggle span {
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    transition: all var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

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

/* ==========================================
   英雄区
   ========================================== */

.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    background-image: 
        linear-gradient(135deg, rgba(53, 43, 43, 0.92) 0%, rgba(94, 180, 167, 0.88) 100%),
        url('img/永恒世界2-cover.webp');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--color-white);
    text-align: center;
    padding: var(--spacing-lg) 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(53, 43, 43, 0.85) 0%, rgba(94, 180, 167, 0.75) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    display: block;
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-secondary-2);
    margin-top: var(--spacing-xs);
}

.hero-description {
    font-size: 1.15rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.info-tag {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.info-tag i {
    color: var(--color-secondary-2);
    margin-right: 0.3rem;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease 0.6s both;
}

.tag {
    background: rgba(94, 180, 167, 0.25);
    backdrop-filter: blur(5px);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(94, 180, 167, 0.4);
}

.hero .btn {
    animation: fadeInUp 0.8s ease 0.8s both;
}

/* ==========================================
   新闻动态区
   ========================================== */

.news-section {
    background: var(--color-white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.news-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid #e0e0e0;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.news-date {
    display: inline-block;
    color: var(--color-accent);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    padding: 0.25rem 0.75rem;
    background: rgba(94, 180, 167, 0.1);
    border-radius: var(--radius-sm);
}

.news-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.news-content {
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-accent);
    font-weight: 600;
    transition: gap var(--transition-fast);
}

.news-link:hover {
    gap: 0.75rem;
}

/* ==========================================
   媒体画廊
   ========================================== */

.gallery-section {
    background: var(--color-bg);
}

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

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 16 / 9;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.gallery-item:hover {
    transform: scale(1.02);
}

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

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

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(53, 43, 43, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.gallery-overlay i {
    font-size: 3rem;
    color: var(--color-white);
}

/* 图片查看器 */
.image-viewer {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--spacing-md);
}

.image-viewer.active {
    display: flex;
}

.image-viewer img {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
}

.viewer-close,
.viewer-prev,
.viewer-next {
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: var(--color-white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.viewer-close {
    top: 2rem;
    right: 2rem;
}

.viewer-prev {
    left: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.viewer-next {
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
}

.viewer-close:hover,
.viewer-prev:hover,
.viewer-next:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(1.1);
}

.viewer-prev:hover {
    transform: translateY(-50%) scale(1.1);
}

.viewer-next:hover {
    transform: translateY(-50%) scale(1.1);
}

/* ==========================================
   用户评价区
   ========================================== */

.reviews-section {
    background: var(--color-white);
}

.reviews-stats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
}

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

.rating-score {
    font-size: 4rem;
    font-weight: 900;
    color: var(--color-accent);
    line-height: 1;
    font-family: var(--font-heading);
}

.rating-stars {
    color: #ffa500;
    font-size: 1.5rem;
    margin: var(--spacing-xs) 0;
}

.rating-count {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.rating-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.rating-tag {
    background: var(--color-white);
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    font-size: 0.95rem;
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    color: var(--color-primary);
}

.reviews-carousel {
    position: relative;
    overflow: hidden;
    padding: var(--spacing-md) 0;
}

.reviews-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.review-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    border: 1px solid #e0e0e0;
    transition: all var(--transition-normal);
}

.review-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

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

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

.reviewer-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.25rem;
}

.reviewer-name {
    font-weight: 600;
    color: var(--color-primary);
}

.review-date {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.review-stars {
    color: #ffa500;
    font-size: 1rem;
}

.review-text {
    color: var(--color-text);
    line-height: 1.7;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gradient-accent);
    color: var(--color-white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    z-index: 10;
}

.carousel-prev {
    left: -20px;
}

.carousel-next {
    right: -20px;
}

.carousel-btn:hover {
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--shadow-lg);
}

/* ==========================================
   版本历史
   ========================================== */

.versions-section {
    background: var(--color-bg);
}

.versions-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.versions-timeline::before {
    content: '';
    position: absolute;
    left: 40px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-secondary-1);
}

.version-item {
    position: relative;
    margin-bottom: var(--spacing-lg);
    padding-left: 100px;
}

.version-marker {
    position: absolute;
    left: 28px;
    top: 30px;
    width: 26px;
    height: 26px;
    background: var(--color-accent);
    border: 4px solid var(--color-white);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
}

.version-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.version-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

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

.version-date {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-top: 0.25rem;
}

.version-date i {
    margin-right: 0.25rem;
    color: var(--color-accent);
}

.version-badge {
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.version-badge.latest {
    background: var(--gradient-accent);
    color: var(--color-white);
}

.version-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg);
    border-radius: var(--radius-md);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.meta-item i {
    color: var(--color-accent);
}

.version-content {
    margin: var(--spacing-sm) 0;
}

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

.version-content ul {
    list-style: none;
    padding: 0;
}

.version-content li {
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    position: relative;
    color: var(--color-text);
    line-height: 1.6;
}

.version-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

/* ==========================================
   游戏攻略
   ========================================== */

.guides-section {
    background: var(--color-white);
}

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

.guide-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    border: 1px solid #e0e0e0;
    transition: all var(--transition-normal);
    text-align: center;
}

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

.guide-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-white);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.guide-card:hover .guide-icon {
    transform: scale(1.1) rotate(5deg);
}

.guide-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

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

.guide-meta {
    padding-top: var(--spacing-sm);
    border-top: 1px solid #e0e0e0;
}

.guide-difficulty {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.guide-difficulty.easy {
    background: rgba(94, 180, 167, 0.15);
    color: var(--color-accent);
}

.guide-difficulty.medium {
    background: rgba(125, 132, 155, 0.15);
    color: var(--color-secondary-3);
}

.guide-difficulty.hard {
    background: rgba(53, 43, 43, 0.15);
    color: var(--color-primary);
}

/* ==========================================
   游戏章节介绍
   ========================================== */

.chapters-section {
    background: var(--color-bg);
}

.chapters-list {
    max-width: 1000px;
    margin: 0 auto;
}

.chapter-item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.chapter-number {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    background: var(--gradient-accent);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 900;
    color: var(--color-white);
    font-family: var(--font-heading);
    box-shadow: var(--shadow-md);
}

.chapter-content {
    flex: 1;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.chapter-content:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
}

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

.chapter-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary);
    flex: 1;
    min-width: 250px;
}

.chapter-badge {
    padding: 0.3rem 0.875rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.chapter-badge.main {
    background: var(--gradient-accent);
    color: var(--color-white);
}

.chapter-badge.special {
    background: var(--gradient-primary);
    color: var(--color-white);
}

.chapter-mood {
    color: var(--color-text-light);
    font-size: 0.9rem;
    font-style: italic;
}

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

.chapter-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid #e0e0e0;
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.chapter-meta span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.chapter-meta i {
    color: var(--color-accent);
}

/* ==========================================
   常见问题
   ========================================== */

.faq-section {
    background: var(--color-white);
}

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

.faq-item {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    box-shadow: var(--shadow-lg);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-white);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-primary);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.faq-question i {
    color: var(--color-accent);
    transition: transform var(--transition-normal);
    font-size: 1.25rem;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--color-text);
    line-height: 1.8;
}

/* ==========================================
   底部
   ========================================== */

.footer {
    background: var(--color-primary);
    color: var(--color-secondary-1);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-section {
    padding: var(--spacing-sm);
}

.footer-title {
    color: var(--color-white);
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-bottom: var(--spacing-xs);
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--color-accent);
}

.footer-text {
    line-height: 1.7;
    margin-bottom: var(--spacing-sm);
    color: var(--color-secondary-1);
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background: var(--color-accent);
    transform: translateY(-3px);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--color-secondary-1);
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--color-accent);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-secondary-1);
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

.footer-disclaimer {
    font-size: 0.9rem;
    color: rgba(194, 194, 192, 0.7);
}

/* ==========================================
   动画
   ========================================== */

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

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

/* ==========================================
   响应式设计
   ========================================== */

@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .versions-timeline::before {
        left: 20px;
    }
    
    .version-marker {
        left: 8px;
    }
    
    .version-item {
        padding-left: 60px;
    }
    
    .article-section .container {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        order: -1;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 72px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 72px);
        background: var(--color-white);
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: left var(--transition-normal);
        overflow-y: auto;
        gap: 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid #e0e0e0;
    }
    
    .nav-menu a {
        width: 100%;
        padding: var(--spacing-sm);
        border-radius: 0;
    }
    
    .hero {
        min-height: 500px;
        background-attachment: scroll;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-info {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-info .info-tag {
        flex: 0 0 calc(50% - 0.5rem);
        max-width: calc(50% - 0.5rem);
        text-align: center;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .news-grid,
    .gallery-grid,
    .guides-grid,
    .reviews-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .chapter-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .chapter-header {
        flex-direction: column;
        text-align: center;
    }
    
    .chapter-meta {
        flex-direction: column;
        align-items: center;
    }
    
    .carousel-prev,
    .carousel-next {
        display: none;
    }
    
    .viewer-prev,
    .viewer-next {
        bottom: 2rem;
        top: auto;
        transform: none;
    }
    
    .viewer-prev {
        left: 1rem;
    }
    
    .viewer-next {
        right: 1rem;
        left: auto;
    }
    
    .viewer-close {
        top: 1rem;
        right: 1rem;
    }
    
    .back-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 45px;
        height: 45px;
    }
    
    .article-section .container {
        grid-template-columns: 1fr;
    }
    
    .article-navigation {
        grid-template-columns: 1fr;
    }
    
    .article-footer {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .comparison-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-boxes {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .rating-tags {
        flex-direction: column;
    }
    
    .rating-tag {
        width: 100%;
        text-align: center;
    }
    
    .article-meta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .article-content {
        padding: var(--spacing-md);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
}

/* ==========================================
   页面特定样式
   ========================================== */

/* 页面Hero区域 */
.page-hero {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
}

.page-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.page-title i {
    color: var(--color-secondary-2);
    margin-right: var(--spacing-sm);
}

.page-description {
    font-size: 1.15rem;
    margin-bottom: var(--spacing-xs);
    opacity: 0.95;
}

.update-date {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: var(--spacing-sm);
}

/* 文章Meta信息 */
.article-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    font-size: 0.95rem;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
}

.article-meta i {
    color: var(--color-secondary-2);
}

/* 文章区域 */
.article-section {
    background: var(--color-bg);
}

.article-section .container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-lg);
    max-width: 1400px;
}

.article-content {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.article-cover {
    width: 100%;
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.article-cover img {
    width: 100%;
    height: auto;
}

.article-lead {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-md);
}

.article-lead p {
    margin-bottom: var(--spacing-sm);
}

.article-content h2 {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin: var(--spacing-lg) 0 var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-accent);
}

.article-content h3 {
    font-size: 1.35rem;
    color: var(--color-secondary-3);
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.article-content h4 {
    font-size: 1.15rem;
    color: var(--color-primary);
    margin: var(--spacing-sm) 0;
}

.article-content h5 {
    font-size: 1.05rem;
    color: var(--color-text);
    margin: var(--spacing-sm) 0;
}

.article-content p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.article-content ul,
.article-content ol {
    margin: var(--spacing-sm) 0 var(--spacing-md);
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.article-content strong {
    color: var(--color-primary);
    font-weight: 600;
}

/* 特色框 */
.feature-boxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.feature-box {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    transition: all var(--transition-normal);
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    font-size: 1.75rem;
    color: var(--color-white);
}

.feature-box h4 {
    margin-bottom: var(--spacing-xs);
}

/* 版本横幅 */
.version-banner {
    background: var(--gradient-accent);
    color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    margin: var(--spacing-lg) 0;
}

.banner-content h2 {
    color: var(--color-white);
    border: none;
    margin: 0 0 var(--spacing-sm);
    padding: 0;
}

.banner-content p {
    margin-bottom: var(--spacing-xs);
}

/* 对比框 */
.comparison-box {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.comparison-box h4 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

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

.comparison-before,
.comparison-after {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.comparison-before h5 {
    color: #999;
}

.comparison-after h5 {
    color: var(--color-accent);
}

/* 性能统计 */
.performance-stats {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.stat-item {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-accent);
    font-family: var(--font-heading);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

/* 下载框 */
.download-box {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.download-info h4 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

/* 角色提示 */
.character-tips {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.character-tips h4 {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.character-tip {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.character-tip:last-child {
    margin-bottom: 0;
}

.character-tip h5 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-xs);
}

.character-tip h5 i {
    margin-right: 0.5rem;
}

/* 选项示例 */
.option-example {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.option-example h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

/* CTA框 */
.cta-box {
    background: var(--gradient-accent);
    color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.cta-box h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.cta-box p {
    margin-bottom: var(--spacing-md);
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

/* 文章底部 */
.article-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--color-bg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

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

.article-tags i {
    color: var(--color-accent);
}

.article-tags .tag {
    background: var(--color-bg);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.article-tags .tag:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

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

.share-btn {
    width: 36px;
    height: 36px;
    background: var(--color-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    transition: all var(--transition-fast);
}

.share-btn:hover {
    background: var(--color-accent);
    color: var(--color-white);
    transform: translateY(-3px);
}

/* 文章导航 */
.article-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.nav-prev,
.nav-next {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-normal);
}

.nav-prev:hover,
.nav-next:hover {
    background: var(--color-accent);
    transform: translateY(-3px);
}

.nav-prev:hover *,
.nav-next:hover * {
    color: var(--color-white);
}

.nav-next {
    text-align: right;
}

.nav-label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
}

.nav-prev a,
.nav-next a {
    font-weight: 600;
    color: var(--color-primary);
}

/* 侧边栏 */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.widget {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.widget-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-accent);
}

.widget-list {
    list-style: none;
    padding: 0;
}

.widget-list li {
    margin-bottom: var(--spacing-sm);
    padding-left: 1.25rem;
    position: relative;
}

.widget-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.widget-list li.active a {
    color: var(--color-accent);
    font-weight: 600;
}

.widget-list a {
    color: var(--color-text);
    transition: color var(--transition-fast);
}

.widget-list a:hover {
    color: var(--color-accent);
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag-cloud .tag {
    background: var(--color-bg);
    padding: 0.4rem 0.875rem;
    border-radius: 20px;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.tag-cloud .tag:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

.cta-widget {
    background: var(--gradient-accent);
    color: var(--color-white);
    text-align: center;
}

.cta-widget .widget-title {
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.3);
}

.cta-widget p {
    margin-bottom: var(--spacing-md);
}

.btn-block {
    display: block;
    width: 100%;
}

/* 内容区域 */
.content-section {
    background: var(--color-white);
}

/* FAQ分类 */
.faq-categories {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

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

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.category-title i {
    color: var(--color-accent);
}

/* 帮助CTA */
.help-cta {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    margin-top: var(--spacing-lg);
}

.help-cta h3 {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.cta-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

/* 用户手册样式 */
.manual-content {
    max-width: 900px;
    margin: 0 auto;
}

.manual-section {
    margin-bottom: var(--spacing-xl);
}

.manual-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.manual-title i {
    color: var(--color-accent);
}

.manual-item {
    margin-bottom: var(--spacing-lg);
}

.manual-item h3 {
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.manual-item h4 {
    font-size: 1.1rem;
    color: var(--color-secondary-3);
    margin: var(--spacing-sm) 0;
}

.system-requirements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.requirement-box {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 2px solid var(--color-secondary-1);
}

.requirement-box h4 {
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.step-list {
    list-style: none;
    counter-reset: step-counter;
    padding: 0;
}

.step-list li {
    counter-increment: step-counter;
    margin-bottom: var(--spacing-sm);
    padding-left: 2.5rem;
    position: relative;
}

.step-list li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 28px;
    height: 28px;
    background: var(--gradient-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.control-item {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-key {
    background: var(--gradient-accent);
    color: var(--color-white);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-align: center;
    font-size: 0.9rem;
}

.control-desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    text-align: center;
}

.tip-box {
    background: rgba(94, 180, 167, 0.1);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.tip-box i {
    color: var(--color-accent);
    margin-right: var(--spacing-xs);
}

.manual-nav {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    text-align: center;
}

.manual-nav h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.nav-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

/* 技术支持样式 */
.support-intro {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.support-categories {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.support-category {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid #e0e0e0;
}

.support-item {
    margin-top: var(--spacing-md);
}

.support-item h3 {
    font-size: 1.15rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.solution-steps {
    list-style: none;
    counter-reset: solution-counter;
    padding: 0;
}

.solution-steps > li {
    counter-increment: solution-counter;
    margin-bottom: var(--spacing-md);
    padding-left: 3rem;
    position: relative;
}

.solution-steps > li::before {
    content: counter(solution-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
    background: var(--gradient-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.solution-steps strong {
    color: var(--color-primary);
    display: block;
    margin-bottom: 0.25rem;
}

.support-footer {
    margin-top: var(--spacing-xl);
}

.support-notice {
    background: rgba(94, 180, 167, 0.1);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-md);
}

.support-notice i {
    font-size: 2rem;
    color: var(--color-accent);
    flex-shrink: 0;
}

.quick-links {
    text-align: center;
}

.quick-links h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.link-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

/* 反馈页面样式 */
.feedback-intro {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

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

.method-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    border: 1px solid #e0e0e0;
    transition: all var(--transition-normal);
}

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

.method-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-sm);
    font-size: 2rem;
    color: var(--color-white);
}

.method-title {
    font-size: 1.25rem;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.method-description {
    color: var(--color-text-light);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.method-info {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
}

.method-tips ul {
    margin-top: var(--spacing-xs);
    padding-left: 1.25rem;
}

.feedback-guidelines {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.guidelines-title {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.guidelines-title i {
    color: var(--color-accent);
}

.guideline-section {
    margin-bottom: var(--spacing-lg);
}

.guideline-section h3 {
    font-size: 1.35rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

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

.guideline-item {
    display: flex;
    gap: var(--spacing-md);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
}

.guideline-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--gradient-accent);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
}

.guideline-content h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.example-box {
    background: rgba(94, 180, 167, 0.1);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    margin-top: var(--spacing-xs);
}

.feedback-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.feedback-type {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
}

.feedback-type i {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.feedback-type h4 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.feedback-faq {
    margin: var(--spacing-lg) 0;
}

.faq-title {
    font-size: 1.75rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.faq-title i {
    color: var(--color-accent);
}

.feedback-thanks {
    background: var(--gradient-accent);
    color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    margin-top: var(--spacing-xl);
}

.feedback-thanks i {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feedback-thanks h3 {
    margin-bottom: var(--spacing-sm);
}

/* 法律页面样式 */
.legal-content {
    font-size: 1rem;
    line-height: 1.8;
}

.legal-intro {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.legal-sections {
    max-width: 900px;
    margin: 0 auto;
}

.legal-section {
    margin-bottom: var(--spacing-xl);
}

.legal-section h2 {
    font-size: 1.65rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-accent);
}

.section-number {
    display: inline-block;
    background: var(--gradient-accent);
    color: var(--color-white);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    text-align: center;
    line-height: 36px;
    margin-right: var(--spacing-xs);
    font-weight: 700;
}

.legal-section h3 {
    font-size: 1.25rem;
    color: var(--color-secondary-3);
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.legal-section ul,
.legal-section ol {
    margin: var(--spacing-sm) 0;
    padding-left: 1.75rem;
}

.legal-section li {
    margin-bottom: 0.5rem;
}

.contact-info {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
}

.contact-info p {
    margin-bottom: 0.5rem;
}

.warning-box,
.notice-box {
    background: rgba(255, 193, 7, 0.1);
    border-left: 4px solid #ffc107;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin: var(--spacing-md) 0;
    display: flex;
    gap: var(--spacing-sm);
}

.warning-box i {
    font-size: 1.5rem;
    color: #ffc107;
    flex-shrink: 0;
}

.warning-box h3 {
    margin-top: 0;
    color: var(--color-primary);
}

.legal-footer {
    margin-top: var(--spacing-xl);
}

.acceptance-notice,
.copyright-notice,
.final-notice {
    background: rgba(94, 180, 167, 0.1);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-sm);
}

.acceptance-notice i,
.copyright-notice i,
.final-notice i {
    font-size: 1.5rem;
    color: var(--color-accent);
    flex-shrink: 0;
}

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

.related-links h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

/* ==========================================
   打印样式
   ========================================== */

@media print {
    .header,
    .back-to-top,
    .menu-toggle,
    .btn,
    .footer-social {
        display: none;
    }
    
    .section {
        page-break-inside: avoid;
    }
}