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

:root {
    --primary-color: #8B0000; /* 深红色 */
    --secondary-color: #D4AF37; /* 金色 */
    --dark-bg: #0A0A0A; /* 深黑背景 */
    --dark-card: #1A1A1A; /* 暗色卡片 */
    --text-color: #E0E0E0; /* 浅灰色文字 */
    --text-light: #A0A0A0; /* 较浅灰色 */
    --border-color: #333333; /* 边框颜色 */
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --transition: all 0.3s ease;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    --box-shadow-light: 0 2px 8px rgba(0, 0, 0, 0.3);
    --font-heading: 'MedievalSharp', cursive;
    --font-body: 'Roboto', sans-serif;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    text-align: center;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--box-shadow-light);
}

.btn:active {
    transform: translateY(0);
}

.btn-hero {
    background-color: var(--primary-color);
    color: white;
    font-size: 1.1rem;
    padding: 15px 35px;
    border: 2px solid var(--primary-color);
}

.btn-hero:hover {
    background-color: transparent;
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

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

.btn-outline:hover {
    background-color: var(--secondary-color);
    color: var(--dark-bg);
}

.btn-login {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-login:hover {
    border-color: var(--text-light);
}

.btn-register {
    background-color: var(--primary-color);
    color: white;
    margin-left: 10px;
}

.btn-register:hover {
    background-color: #9c0000;
}

.btn-more {
    background-color: var(--dark-card);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.btn-more:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.btn-download {
    background-color: var(--primary-color);
    color: white;
    font-size: 1.1rem;
    padding: 15px 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 10px;
}

.btn-download i {
    margin-right: 10px;
    font-size: 1.3rem;
}

.btn-download:hover {
    background-color: #9c0000;
}

.btn-mobile {
    background-color: var(--secondary-color);
    color: var(--dark-bg);
}

.btn-mobile:hover {
    background-color: #e6c158;
}

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

/* 顶部导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
    background-color: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(10px);
}

.header.scrolled {
    padding: 10px 0;
    background-color: rgba(10, 10, 10, 0.95);
    box-shadow: var(--box-shadow);
}

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

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

.logo i {
    margin-right: 10px;
    font-size: 2rem;
}

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

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
}

.nav-link:hover, .nav-link.active {
    color: var(--secondary-color);
    background-color: rgba(212, 175, 55, 0.1);
}

.nav-buttons {
    display: flex;
    align-items: center;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: transparent;
    border: none;
    margin-left: 20px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 3px 0;
    transition: var(--transition);
}

/* 英雄轮播区域 */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    overflow: hidden;
    margin-top: 70px;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide.active {
    opacity: 1;
}

.slide-content {
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
    z-index: 2;
}

.slide-content h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    color: white;
    margin-bottom: 20px;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.7);
}

.slide-content p {
    font-size: 1.3rem;
    color: #f0f0f0;
    margin-bottom: 30px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.slider-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
    transform: translateY(-50%);
    z-index: 10;
}

.slider-btn {
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.2rem;
}

.slider-btn:hover {
    background-color: rgba(139, 0, 0, 0.8);
}

.slider-indicators {
    position: absolute;
    bottom: 30px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    margin: 0 8px;
    cursor: pointer;
    transition: var(--transition);
}

.indicator.active {
    background-color: var(--primary-color);
    transform: scale(1.2);
}

/* 最新公告区 - 卡片布局 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.news-card {
    background-color: var(--dark-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--box-shadow);
}

.news-date {
    background: linear-gradient(135deg, var(--primary-color), #6a0000);
    padding: 15px;
    text-align: center;
    color: white;
}

.news-date .day {
    display: block;
    font-size: 2.2rem;
    font-weight: bold;
    line-height: 1;
    margin-bottom: 5px;
    font-family: var(--font-heading);
}

.news-date .month {
    display: block;
    font-size: 1.1rem;
    opacity: 0.9;
}

.news-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.news-content h3 {
    font-size: 1.3rem;
    color: var(--text-color);
    margin-bottom: 15px;
    line-height: 1.4;
    min-height: 3.6em;
}

.news-content p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.6;
    flex-grow: 1;
}

.news-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    transition: var(--transition);
}

.news-link:hover {
    color: #ffcc33;
}

.news-link::after {
    content: '→';
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.news-link:hover::after {
    transform: translateX(5px);
}

/* 游戏特色区 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature-card {
    background-color: var(--dark-card);
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--box-shadow);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(139, 0, 0, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--secondary-color);
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 角色职业展示区 - 切换方式 */
.class-tabs {
    margin-top: 40px;
}

/* 选项卡导航 */
.tab-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 12px 20px;
    margin: 0 5px 10px;
    color: var(--text-light);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
}

.tab-btn i {
    margin-right: 8px;
    font-size: 1.1rem;
}

.tab-btn:hover {
    color: var(--secondary-color);
    background-color: rgba(212, 175, 55, 0.1);
}

.tab-btn.active {
    color: var(--secondary-color);
    background-color: rgba(212, 175, 55, 0.2);
    border-bottom: 3px solid var(--primary-color);
}

/* 选项卡内容 */
.tab-content {
    background-color: var(--dark-card);
    border-radius: var(--border-radius);
    padding: 30px;
    border: 1px solid var(--border-color);
    margin-bottom: 30px;
    box-shadow: var(--box-shadow-light);
}

.tab-pane {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 职业详情布局 */
.class-detail {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

@media (min-width: 992px) {
    .class-detail {
        flex-direction: row;
    }
}

.class-detail-image {
    flex: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    max-height: 400px;
}

.class-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.class-detail-image img:hover {
    transform: scale(1.05);
}

.class-detail-info {
    flex: 1;
}

.class-detail-info h3 {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-family: var(--font-heading);
}

.class-description {
    color: var(--text-color);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 25px;
}

/* 职业属性 */
.class-stats {
    margin: 25px 0;
}

.class-stat {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.stat-label {
    min-width: 80px;
    color: var(--text-color);
    font-weight: 500;
}

.stat-bar {
    flex: 1;
    height: 10px;
    background-color: #333;
    border-radius: 5px;
    overflow: hidden;
    margin: 0 15px;
}

.stat-fill {
    height: 100%;
    background: linear-gradient(to right, var(--primary-color), #ff3333);
    border-radius: 5px;
    transition: width 1s ease;
}

.stat-value {
    min-width: 40px;
    text-align: right;
    color: var(--secondary-color);
    font-weight: 600;
}

/* 技能列表 */
.class-skills {
    margin: 30px 0;
}

.class-skills h4 {
    font-size: 1.3rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.class-skills ul {
    list-style: none;
    padding-left: 0;
}

.class-skills li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--border-color);
    color: var(--text-light);
    line-height: 1.6;
}

.class-skills li:last-child {
    border-bottom: none;
}

.class-skills li strong {
    color: var(--text-color);
}

/* 职业定位标签 */
.class-role {
    margin-top: 25px;
}

.class-role h4 {
    font-size: 1.3rem;
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.role-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.role-tag {
    background-color: rgba(139, 0, 0, 0.3);
    color: var(--secondary-color);
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(212, 175, 55, 0.3);
}

/* 职业预览缩略图 */
.class-preview {
    margin-top: 20px;
}

.preview-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}

.preview-btn {
    background: transparent;
    border: none;
    border-radius: var(--border-radius);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    width: 100px;
    padding: 0;
    border: 2px solid transparent;
    position: relative;
}

.preview-btn:hover {
    transform: translateY(-5px);
    border-color: var(--text-light);
}

.preview-btn.active {
    border-color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(139, 0, 0, 0.3);
}

.preview-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: 1;
    transition: var(--transition);
}

.preview-btn.active::before,
.preview-btn:hover::before {
    background-color: transparent;
}

.preview-btn img {
    width: 100%;
    height: 70px;
    object-fit: cover;
    display: block;
}

.preview-btn span {
    display: block;
    padding: 8px 5px;
    background-color: rgba(0, 0, 0, 0.7);
    color: var(--text-color);
    font-size: 0.9rem;
    text-align: center;
    position: relative;
    z-index: 2;
}

/* 游戏截图/视频区 */
.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 60px;
}

.screenshot-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 200px;
    cursor: pointer;
}

.screenshot-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.screenshot-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(139, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.screenshot-item:hover .screenshot-img {
    transform: scale(1.05);
}

.screenshot-overlay i {
    color: white;
    font-size: 2.5rem;
}

.video-section {
    max-width: 800px;
    margin: 0 auto;
}

.video-preview {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    height: 400px;
}

.video-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.video-play-btn {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 20px;
}

.video-play-btn:hover {
    background-color: #9c0000;
    transform: scale(1.1);
}

.video-overlay h3 {
    font-size: 1.8rem;
    color: white;
    text-align: center;
}

/* 下载中心区 */
.download {
    background: linear-gradient(to right, var(--dark-bg) 50%, rgba(139, 0, 0, 0.1) 100%);
}

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

.download-info {
    flex: 1;
    padding-right: 50px;
}

.download-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 30px;
}

.download-stats {
    display: flex;
    margin: 30px 0;
}

.stat {
    text-align: center;
    margin-right: 40px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--secondary-color);
    line-height: 1;
}

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

.download-buttons {
    display: flex;
    flex-wrap: wrap;
    margin: 30px 0;
}

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

.download-image {
    flex: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.download-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* 玩家社区入口 */
.community-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.community-card {
    background-color: var(--dark-card);
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.community-card:hover {
    transform: translateY(-10px);
    border-color: var(--secondary-color);
    box-shadow: var(--box-shadow);
}

.community-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(139, 0, 0, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--secondary-color);
    font-size: 1.8rem;
}

.community-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.community-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* 页脚 */
.footer {
    background-color: #0A0A0A;
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-logo {
    flex: 1;
    max-width: 300px;
}

.footer-logo .logo {
    margin-bottom: 20px;
    display: inline-flex;
}

.footer-logo p {
    color: var(--text-light);
    margin-bottom: 25px;
    line-height: 1.7;
}

.social-links {
    display: flex;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--dark-card);
    border-radius: 50%;
    color: var(--text-color);
    margin-right: 10px;
    transition: var(--transition);
    font-size: 1.2rem;
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.footer-links {
    flex: 2;
    display: flex;
    justify-content: space-around;
}

.footer-column h4 {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
    font-weight: 600;
}

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

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-column ul li a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 10px;
    line-height: 1.6;
}

/* 模态框 - 图片查看器 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--dark-card);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    padding: 30px;
    border: 1px solid var(--border-color);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: transparent;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
}

.modal-close:hover {
    color: var(--primary-color);
}

/* 图片查看器 */
.image-viewer {
    max-width: 1000px;
    padding: 20px;
}

.image-viewer-content {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-viewer-content img {
    max-width: 100%;
    max-height: 70vh;
    border-radius: var(--border-radius);
}

.viewer-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
}

.viewer-btn:hover {
    background-color: var(--primary-color);
}

.viewer-prev {
    left: -25px;
}

.viewer-next {
    right: -25px;
}

/* 视频播放器 */
.video-player {
    max-width: 1000px;
    padding: 20px;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 宽高比 */
    height: 0;
    overflow: hidden;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius);
}

/* 下载提示 */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--dark-card);
    color: white;
    padding: 15px 25px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    box-shadow: var(--box-shadow);
    border-left: 4px solid var(--primary-color);
    transform: translateY(100px);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    z-index: 1000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-content i {
    margin-right: 10px;
    color: var(--secondary-color);
    font-size: 1.2rem;
}

/* 响应式设计 */
@media (max-width: 1199px) {
    .features-grid, .community-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .download-content {
        flex-direction: column;
    }
    
    .download-info {
        padding-right: 0;
        margin-bottom: 50px;
        text-align: center;
    }
    
    .download-stats {
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-logo {
        max-width: 100%;
        margin-bottom: 40px;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .preview-nav {
        gap: 10px;
    }
    
    .preview-btn {
        width: 90px;
    }
}

@media (max-width: 767px) {
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero {
        height: 80vh;
        min-height: 600px;
    }
    
    .slide-content h1 {
        font-size: 2.5rem;
    }
    
    .slide-content p {
        font-size: 1.1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: var(--dark-bg);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--box-shadow);
        padding: 20px 0;
        z-index: 999;
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        padding: 15px 20px;
        display: block;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .slider-controls {
        padding: 0 15px;
    }
    
    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .features-grid, .news-grid, .screenshots-grid, .community-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-links {
        flex-direction: column;
    }
    
    .footer-column {
        margin-bottom: 30px;
    }
    
    .modal-content {
        width: 95%;
        padding: 20px;
    }
    
    .viewer-prev {
        left: 10px;
    }
    
    .viewer-next {
        right: 10px;
    }
    
    .viewer-btn {
        width: 40px;
        height: 40px;
    }
    
    .tab-nav {
        justify-content: flex-start;
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 5px;
    }
    
    .tab-btn {
        min-width: auto;
        padding: 8px 15px;
        margin: 0 3px 5px;
    }
    
    .tab-content {
        padding: 20px;
    }
    
    .preview-nav {
        justify-content: flex-start;
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 10px;
    }
    
    .preview-btn {
        width: 80px;
    }
    
    .preview-btn img {
        height: 60px;
    }
    
    .class-detail-info h3 {
        font-size: 1.7rem;
    }
    
    .class-stat {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .stat-bar {
        width: 100%;
        margin: 8px 0;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;

}

.delay-3 {
    animation-delay: 0.6s;
}

.delay-4 {
    animation-delay: 0.8s;
}
/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 12px rgba(139, 0, 0, 0.3);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: #9c0000;
    transform: translateY(-5px);
    box-shadow: 0 6px 16px rgba(139, 0, 0, 0.4);
}

/* 响应式设计 - 回到顶部按钮 */
@media (max-width: 767px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
}