/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --light-gray: #f5f7fa;
    --dark-gray: #34495e;
    --text-color: #2c3e50;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

body {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 加载动画 - 增大云图标尺寸 */
#loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

.loader-content {
    text-align: center;
    animation: fadeIn 1s ease;
}

.loader-logo {
    font-size: 6rem;
    margin-bottom: 25px;
    color: var(--secondary-color);
    animation: pulse 2s infinite;
}

.loader-text {
    font-size: 1.8rem;
    margin-bottom: 35px;
    color: var(--dark-gray);
    font-weight: 500;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 6px solid rgba(52, 152, 219, 0.2);
    border-top: 6px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.9; }
    50% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(1); opacity: 0.9; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 页面内容 - 默认隐藏 */
#content {
    opacity: 0;
    transition: opacity 0.5s ease-in;
}

/* 导航栏 - 添加了滚动动画 */
header {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(5px);
    transform: translateY(0);
    transition: transform 0.3s ease;
}

header.hidden {
    transform: translateY(-100%);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    transition: padding 0.3s ease;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    transition: transform 0.3s ease;
}

.logo.scrolled {
    transform: scale(0.9);
}

.logo-icon {
    color: var(--primary-color);
    font-size: 2rem;
    transition: all 0.3s ease;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    transition: all 0.3s ease;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

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

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

.nav-links a:hover::after {
    width: 100%;
}

/* 主内容区域 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e7eb 100%);
    border-radius: var(--border-radius);
    padding: 5rem 2rem;
    text-align: center;
    margin: 2rem auto 4rem;
    box-shadow: var(--box-shadow);
    position: relative;
    overflow: hidden;
    max-width: 1000px;
    animation: fadeIn 1s ease;
}

.hero::before {
    content: "";
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: var(--primary-color);
    opacity: 0.1;
    border-radius: 50%;
}

.hero::after {
    content: "";
    position: absolute;
    bottom: -80px;
    left: -50px;
    width: 250px;
    height: 250px;
    background: var(--secondary-color);
    opacity: 0.05;
    border-radius: 50%;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    line-height: 1.2;
}

.hero p {
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto 2.5rem;
    color: var(--dark-gray);
}

.server-ip {
    background: white;
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1.3rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin-top: 1.5rem;
    border: 2px solid rgba(52, 152, 219, 0.1);
    animation: float 3s ease-in-out infinite;
}

.server-ip i {
    margin-right: 10px;
    color: var(--primary-color);
}

.server-ip span {
    color: var(--accent-color);
    font-weight: 700;
    margin-left: 8px;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

/* 下载区域 */
.download-section {
    background: white;
    border-radius: var(--border-radius);
    padding: 4rem;
    margin: 0 auto 4rem;
    box-shadow: var(--box-shadow);
    max-width: 900px;
    animation: fadeIn 1s ease 0.2s forwards;
    opacity: 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-header p {
    color: var(--dark-gray);
    max-width: 700px;
    margin: 1.5rem auto 0;
    font-size: 1.1rem;
}

.pack-card {
    background: linear-gradient(145deg, #f0f4f8, #ffffff);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid #eaeaea;
    max-width: 700px;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.pack-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.pack-image {
    height: 280px;
    background: linear-gradient(45deg, #3498db, #2c3e50);
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 3.5rem;
    position: relative;
    overflow: hidden;
}

.pack-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, #2c3e50, #3498db);
    opacity: 0.8;
}

.pack-content {
    padding: 2.5rem;
}

.pack-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1.2rem;
    color: var(--secondary-color);
}

.pack-content p {
    color: var(--dark-gray);
    margin-bottom: 2rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    background: linear-gradient(45deg, var(--primary-color), #2980b9);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    font-size: 1.1rem;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
    margin-top: 1rem;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(52, 152, 219, 0.4);
    background: linear-gradient(45deg, #2980b9, var(--primary-color));
}

.download-btn i {
    margin-right: 10px;
}

.file-info {
    display: flex;
    margin-top: 1.5rem;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.info-card {
    background: var(--light-gray);
    padding: 0.8rem 1.5rem;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-card i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* 服务器规则 */
.rules-section {
    background: white;
    border-radius: var(--border-radius);
    padding: 4rem;
    margin: 0 auto 4rem;
    box-shadow: var(--box-shadow);
    max-width: 1000px;
    animation: fadeIn 1s ease 0.4s forwards;
    opacity: 0;
}

.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.8rem;
    margin-top: 2rem;
}

.rule-card {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.rule-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

.rule-card h3 {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1.2rem;
    color: var(--secondary-color);
    font-size: 1.3rem;
}

.rule-icon {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.rule-card ul {
    padding-left: 1.8rem;
}

.rule-card li {
    margin-bottom: 0.8rem;
    line-height: 1.6;
}

/* 服务器动态 */
.news-section {
    background: white;
    border-radius: var(--border-radius);
    padding: 4rem;
    margin: 0 auto 4rem;
    box-shadow: var(--box-shadow);
    max-width: 1000px;
    animation: fadeIn 1s ease 0.6s forwards;
    opacity: 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 3rem auto 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--primary-color), transparent);
    left: 20px;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 60px;
}

.timeline-date {
    position: absolute;
    top: 0;
    left: 0;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    z-index: 2;
    box-shadow: 0 4px 10px rgba(52, 152, 219, 0.3);
}

.timeline-content {
    background: var(--light-gray);
    padding: 1.8rem;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.timeline-content h3 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
    font-size: 1.4rem;
}

.timeline-content p {
    color: var(--dark-gray);
    line-height: 1.7;
}

/* 页脚 */
footer {
    background: var(--secondary-color);
    color: white;
    padding: 3rem 0;
    text-align: center;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.copyright {
    color: #bdc3c7;
    font-size: 1rem;
    margin-top: 1.5rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        padding: 1rem;
    }
    
    .nav-links {
        margin-top: 1rem;
        gap: 1.2rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero {
        padding: 3rem 1.5rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .download-section, .rules-section, .news-section {
        padding: 2.5rem 1.5rem;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        padding-left: 60px;
    }
}

/* 弹窗容器 - 修复间距问题 */
#notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

/* 公告弹窗 - 白色背景 */
.notification {
    position: relative;
    min-width: 320px;
    max-width: 400px;
    padding: 20px 25px;
    border-radius: 8px;
    background-color: white;
    color: #333;
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transform: translateX(120%);
    opacity: 0;
    transition: transform 0.4s ease, opacity 0.4s ease;
    border-left: 5px solid; /* 左侧状态条 */
    font-size: 15px;
    height: 90px;
    margin-bottom: 10px; /* 修复弹窗间距的关键 */
}

.notification.show {
    transform: translateX(0);
    opacity: 1;
}

.notification.announcement {
    border-left-color: #3498db; /* 公告蓝色状态条 */
}

.notification.error {
    border-left-color: #e74c3c; /* 错误红色状态条 */
}

.notification .close-btn {
    background: none;
    border: none;
    color: #777;
    font-size: 22px;
    cursor: pointer;
    padding: 0;
    margin-left: 15px;
    opacity: 0.7;
    transition: opacity 0.2s ease;
    position: absolute;
    top: 10px;
    right: 10px;
}

.notification .close-btn:hover {
    opacity: 1;
    color: #333;
}

.notification-content {
    flex: 1;
    font-size: 15px;
    line-height: 1.5;
    padding-right: 20px;
}

.notification-icon {
    margin-right: 12px;
    font-size: 22px;
    display: inline-flex;
    vertical-align: middle;
}

.notification-timer {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 4px;
    background: rgba(0,0,0,0.05);
    width: 100%;
    border-radius: 0 0 0 4px;
    overflow: hidden;
}

.notification-timer-bar {
    height: 100%;
    width: 100%;
    background: #ddd;
    animation: timerAnimation 10s linear forwards;
    transform-origin: left center;
}

.notification.error .notification-timer-bar {
    background: #e74c3c;
    animation: timerAnimation 5s linear forwards;
}

.notification.announcement .notification-timer-bar {
    background: #3498db;
}

@keyframes timerAnimation {
    0% { transform: scaleX(1); }
    100% { transform: scaleX(0); }
}

/* 禁用状态 */
.download-btn.disabled {
    background: linear-gradient(45deg, #95a5a6, #7f8c8d);
    cursor: not-allowed;
    pointer-events: none;
}