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

:root {
    --primary-color: #059669;
    --primary-dark: #047857;
    --primary-light: #10b981;
    --secondary-color: #ef4444;
    --accent-color: #f59e0b;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --bg-dark: #111827;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo i {
    font-size: 1.75rem;
    color: var(--secondary-color);
}

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

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.625rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-family: inherit;
}

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

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

.btn-register,
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

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

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

.btn-secondary:hover {
    background: #b91c1c;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: var(--transition);
}

/* ===== 英雄区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.particles::before,
.particles::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 20s infinite;
}

.particles::before {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.particles::after {
    bottom: 20%;
    right: 10%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-50px) rotate(180deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    color: white;
}

.hero-text {
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.title-highlight {
    color: var(--accent-color);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-description {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-bottom: 2.5rem;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    display: block;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 0.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    animation: fadeInRight 1s ease;
}

.card-showcase {
    position: relative;
    width: 300px;
    height: 400px;
    margin: 0 auto;
}

.card {
    position: absolute;
    width: 120px;
    height: 170px;
    background: white;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: 700;
    box-shadow: var(--shadow-xl);
    animation: cardFloat 3s ease-in-out infinite;
}

.card-1 {
    top: 0;
    left: 0;
    color: var(--text-dark);
    animation-delay: 0s;
}

.card-2 {
    top: 50px;
    left: 80px;
    color: var(--secondary-color);
    animation-delay: 0.5s;
}

.card-3 {
    top: 100px;
    left: 160px;
    color: var(--secondary-color);
    animation-delay: 1s;
}

.card-4 {
    top: 150px;
    left: 80px;
    color: var(--text-dark);
    animation-delay: 1.5s;
}

@keyframes cardFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid white;
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: white;
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(15px); }
}

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

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

/* ===== 区块标题 ===== */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header.text-left {
    text-align: left;
}

.section-tag {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.section-header.text-left .section-subtitle {
    margin: 0;
}

/* ===== 网站介绍 ===== */
.about {
    padding: 6rem 0;
    background: var(--bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
    align-items: start;
}

.about-text {
    animation: fadeInUp 0.8s ease;
}

.about-sidebar {
    position: sticky;
    top: 100px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.about-description {
    margin-top: 0;
}

.about-description p {
    font-size: 1.125rem;
    line-height: 1.9;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.about-description .lead {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: 2.5rem;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.05), rgba(59, 130, 246, 0.02));
    border-left: 4px solid var(--primary-color);
    border-radius: 0.5rem;
}

.about-description h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-top: 3rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--border-color);
    position: relative;
}

.about-description h3::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
}

.about-description h3:first-of-type {
    margin-top: 0;
}

.search-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.875rem;
    margin-top: 3rem;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 1rem;
}

.search-tag {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    background: white;
    color: var(--text-dark);
    border: 2px solid var(--border-color);
    border-radius: 2rem;
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
}

.search-tag:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== 今日热点侧边栏 ===== */
.hot-news-sidebar {
    background: white;
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: var(--transition);
}

.hot-news-sidebar:hover {
    box-shadow: var(--shadow-xl);
}

.hot-news-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    padding: 1.5rem;
    text-align: center;
}

.hot-news-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.hot-news-title i {
    font-size: 1.5rem;
    color: var(--accent-color);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.hot-news-content {
    padding: 1.5rem;
}

.hot-news-sidebar .hot-news-category {
    padding: 1rem;
    margin-bottom: 1rem;
    background: var(--bg-light);
    border-radius: 0.75rem;
    border-left: 3px solid transparent;
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.hot-news-sidebar .hot-news-category:last-of-type {
    margin-bottom: 0;
}

.hot-news-sidebar .hot-news-category:hover {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.05), rgba(59, 130, 246, 0.02));
    border-left-color: var(--primary-color);
    transform: translateX(5px);
}

.hot-news-sidebar .category-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.hot-news-sidebar .hot-news-category:hover .category-icon {
    transform: scale(1.1) rotate(5deg);
}

.hot-news-sidebar .category-icon i {
    font-size: 1.125rem;
    color: white;
}

.hot-news-sidebar .category-content {
    flex: 1;
}

.hot-news-sidebar .category-content h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.hot-news-sidebar .hot-news-category:hover .category-content h4 {
    color: var(--primary-color);
}

.hot-news-sidebar .category-content p {
    font-size: 0.8125rem;
    color: var(--text-light);
    line-height: 1.5;
    margin: 0;
}

.hot-news-summary {
    margin-top: 1.5rem;
    padding: 1rem;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.05), rgba(59, 130, 246, 0.02));
    border-radius: 0.75rem;
    border-left: 3px solid var(--primary-color);
}

.hot-news-summary p {
    font-size: 0.875rem;
    color: var(--text-dark);
    line-height: 1.7;
    margin: 0;
    text-align: justify;
}

/* 网站介绍响应式设计 */
@media (max-width: 968px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .about-description p {
        font-size: 1rem;
        line-height: 1.8;
    }

    .about-description .lead {
        font-size: 1.125rem;
        padding: 1.5rem;
    }

    .about-description h3 {
        font-size: 1.5rem;
    }

    .search-tags {
        padding: 1.5rem;
        gap: 0.75rem;
    }

    .search-tag {
        font-size: 0.875rem;
        padding: 0.5rem 1rem;
    }

    .hot-news-header {
        padding: 1.25rem;
    }

    .hot-news-title {
        font-size: 1.125rem;
    }

    .hot-news-content {
        padding: 1.25rem;
    }
}

/* ===== 特色功能 ===== */
.features {
    padding: 6rem 0;
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: scaleX(0);
    transition: var(--transition);
}

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

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.feature-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: var(--bg-light);
    color: var(--primary-color);
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

/* ===== App界面展示 ===== */
.app-showcase {
    padding: 6rem 0;
    background: var(--bg-white);
    position: relative;
    overflow: hidden;
}

.app-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.02), rgba(59, 130, 246, 0.02));
    z-index: 0;
}

.app-showcase .container {
    position: relative;
    z-index: 1;
}

.app-showcase-gallery {
    display: flex;
    flex-wrap: nowrap;
    gap: 1.5rem;
    justify-content: flex-start;
    align-items: center;
    overflow-x: auto;
    padding: 2rem 0;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--bg-light);
}

.app-showcase-gallery::-webkit-scrollbar {
    height: 8px;
}

.app-showcase-gallery::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 10px;
}

.app-showcase-gallery::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 10px;
    transition: var(--transition);
}

.app-showcase-gallery::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

.app-screenshot-item {
    flex: 0 0 auto;
    width: 220px;
    min-width: 220px;
    max-width: 220px;
}

.app-screenshot-frame {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: white;
    padding: 10px;
    transition: var(--transition);
    cursor: pointer;
    aspect-ratio: 9 / 16;
    width: 100%;
}

.app-screenshot-frame::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.1), rgba(59, 130, 246, 0.05));
    opacity: 0;
    transition: var(--transition);
    z-index: 1;
    pointer-events: none;
    border-radius: 12px;
}

.app-screenshot-frame:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: 0 25px 60px rgba(30, 58, 138, 0.25);
}

.app-screenshot-frame:hover::before {
    opacity: 1;
}

.app-screenshot-frame img {
    width: 100%;
    height: 100%;
    display: none;
    border-radius: 12px;
    transition: var(--transition);
    object-fit: cover;
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    z-index: 2;
}

.app-screenshot-frame img.loaded {
    display: block;
}

.app-screenshot-frame:hover img {
    transform: scale(1.02);
}

.screenshot-placeholder {
    width: calc(100% - 20px);
    height: calc(100% - 20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    color: white;
    gap: 1rem;
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    z-index: 1;
}

.screenshot-placeholder i {
    font-size: 3rem;
    opacity: 0.8;
}

.screenshot-placeholder span {
    font-size: 0.875rem;
    font-weight: 600;
    opacity: 0.9;
}

/* App展示响应式设计 */
@media (max-width: 992px) {
    .app-screenshot-item {
        width: 200px;
        min-width: 200px;
        max-width: 200px;
    }
}

@media (max-width: 768px) {
    .app-screenshot-item {
        width: 180px;
        min-width: 180px;
        max-width: 180px;
    }
}

@media (max-width: 480px) {
    .app-screenshot-item {
        width: 160px;
        min-width: 160px;
        max-width: 160px;
    }

    .app-showcase-gallery {
        gap: 1rem;
        padding: 1.5rem 0;
    }
}

/* ===== App展示模态框 ===== */
.screenshot-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    animation: fadeIn 0.3s ease;
}

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

.screenshot-modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screenshot-modal-content img {
    max-width: 100%;
    max-height: 90vh;
    border-radius: 1rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: zoomIn 0.3s ease;
}

@keyframes zoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.screenshot-modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    color: white;
    font-size: 3rem;
    font-weight: 300;
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
}

.screenshot-modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

/* ===== 游戏大厅 ===== */
.games {
    padding: 6rem 0;
}

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

.game-card {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.game-card.featured {
    border-color: var(--accent-color);
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
}

.game-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
}

.game-icon {
    font-size: 4rem;
    color: white;
    opacity: 0.8;
}

.game-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    background: var(--accent-color);
    color: white;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
}

.game-content {
    padding: 2rem;
}

.game-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.game-content p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.game-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 0.5rem;
    font-size: 0.875rem;
}

.game-info span {
    color: var(--text-light);
}

.game-info i {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

.btn-game {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 0.875rem;
    font-weight: 600;
}

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

/* ===== 锦标赛 ===== */
.tournaments {
    padding: 6rem 0;
    background: var(--bg-dark);
    color: white;
}

.tournaments .section-title,
.tournaments .section-subtitle {
    color: white;
}

.tournaments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.tournament-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 2rem;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.tournament-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 30px rgba(245, 158, 11, 0.2);
}

.tournament-card.highlight {
    border-color: var(--accent-color);
    background: rgba(245, 158, 11, 0.1);
}

.tournament-header {
    margin-bottom: 1.5rem;
}

.tournament-badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.highlight-badge {
    background: var(--accent-color);
    color: var(--text-dark);
}

.tournament-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.tournament-date {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

.prize-pool {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
}

.prize-label {
    display: block;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

.prize-amount {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
}

.tournament-stats {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

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

.btn-tournament {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-color), #f97316);
    color: white;
    padding: 0.875rem;
    font-weight: 600;
}

.btn-tournament:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
}

/* ===== 下载区域 ===== */
.download {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

.download-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.download .section-title,
.download .section-subtitle {
    color: white;
}

.download-features {
    margin: 2rem 0;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.download-feature i {
    color: var(--accent-color);
    font-size: 1.5rem;
}

.download-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}

.btn-download {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.5rem;
    color: white;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.btn-download:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-download i {
    font-size: 2rem;
}

.download-label {
    display: block;
    font-weight: 600;
    font-size: 1.125rem;
}

.download-version {
    display: block;
    font-size: 0.875rem;
    opacity: 0.8;
}

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

.device-showcase {
    position: relative;
    width: 300px;
    height: 400px;
}

.device {
    position: absolute;
    border-radius: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    padding: 1rem;
    box-shadow: var(--shadow-xl);
}

.device-mobile {
    width: 150px;
    height: 250px;
    left: 0;
    top: 50%;
    transform: translateY(-50%) rotate(-15deg);
    animation: deviceFloat 3s ease-in-out infinite;
}

.device-tablet {
    width: 200px;
    height: 300px;
    right: 0;
    top: 0;
    transform: rotate(15deg);
    animation: deviceFloat 3s ease-in-out infinite;
    animation-delay: 1.5s;
}

@keyframes deviceFloat {
    0%, 100% { transform: translateY(0) rotate(var(--rotate, 0deg)); }
    50% { transform: translateY(-20px) rotate(var(--rotate, 0deg)); }
}

.device-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screen-content {
    text-align: center;
    color: white;
}

.screen-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.screen-text {
    font-size: 1.5rem;
    font-weight: 700;
}


/* ===== FAQ ===== */
.faq {
    padding: 6rem 0;
    background: var(--bg-white);
}

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

.faq-item {
    background: white;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition);
}

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

.faq-question h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
}

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

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

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

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== 联系我们 ===== */
.contact {
    padding: 6rem 0;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    font-size: 1.5rem;
    color: white;
}

.contact-details h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.contact-details p {
    color: var(--text-light);
}

.contact-form-wrapper {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: 1rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* ===== 页脚 ===== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer-logo i {
    font-size: 1.75rem;
    color: var(--accent-color);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.footer-section h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

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

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: white;
    padding-left: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* ===== 返回顶部 ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

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

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

/* ===== 移动端菜单 ===== */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
        z-index: 999;
        gap: 0;
    }

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

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-link {
        display: block;
        padding: 1rem 0;
        font-size: 1.125rem;
        width: 100%;
    }


    .nav-actions {
        position: fixed;
        bottom: 0;
        left: -100%;
        width: 100%;
        padding: 1.5rem;
        background: white;
        box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
        display: flex;
        gap: 1rem;
        z-index: 1000;
        transition: left 0.3s ease;
    }

    .nav-menu.active + .nav-actions,
    .nav-menu.active ~ .nav-actions {
        left: 0;
    }

    .nav-actions .btn {
        flex: 1;
        justify-content: center;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

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

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

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-stats {
        justify-content: center;
    }

    .download-wrapper,
    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .download-buttons {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero {
        padding-top: 100px;
        min-height: auto;
        padding-bottom: 4rem;
    }

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

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

    .section-title {
        font-size: 2rem;
    }

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

    .hero-stats {
        gap: 1.5rem;
        flex-wrap: wrap;
    }

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

    .card-showcase {
        width: 250px;
        height: 350px;
    }

    .card {
        width: 100px;
        height: 140px;
        font-size: 2.5rem;
    }

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

    .device-showcase {
        width: 250px;
        height: 350px;
        margin-top: 2rem;
    }

    .contact-form-wrapper {
        padding: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}