/*
 * 一体化网络安全攻防靶场平台 - 主样式文件
 * 深色主题设计，专业安全工具风格
 */

/* CSS变量定义 - 深色主题配色方案 */
:root {
    /* 主色调 */
    --primary-bg: #0a0a0a;
    /* 深黑色背景 */
    --secondary-bg: #1a1a1a;
    /* 深灰色背景 */
    --tertiary-bg: #2a2a2a;
    /* 中灰色背景 */
    --card-bg: #1e1e1e;
    /* 卡片背景 */

    /* 强调色 */
    --accent-green: #077a44;
    /* 主绿色 */
    --accent-green-hover: #00cc6a;
    /* 绿色悬停 */
    --accent-red: #ff4444;
    /* 警告红色 */
    --accent-blue: #4488ff;
    /* 信息蓝色 */
    --accent-yellow: #ffaa00;
    /* 警告黄色 */

    /* 文字颜色 */
    --text-primary: #ffffff;
    /* 主要文字 */
    --text-secondary: #cccccc;
    /* 次要文字 */
    --text-muted: #888888;
    /* 弱化文字 */
    --text-accent: #00ff88;

    /* 边框和分割线 */
    --border-color: #333333;
    --border-hover: #555555;

    /* 阴影效果 */
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.5);

    /* 字体定义 */
    --font-primary: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
    --font-code: "Consolas", "Monaco", "Courier New", monospace;

    /* 尺寸变量 */
    --border-radius: 8px;
    --border-radius-small: 4px;
    --border-radius-large: 12px;
    --container-max-width: 1600px;
    --header-height: 70px;
}

/* 全局重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

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

/* 容器样式 */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部导航栏样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.navbar {
    height: var(--header-height);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;

    padding: 0 20px;
}

/* Logo样式 */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-accent);
    text-decoration: none;
}

.logo-icon {
    font-size: 2rem;
}

.logo-text {
    background: linear-gradient(45deg, var(--accent-green), #00ccaa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}



/* 按钮基础样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-green), #00cc6a);
    color: var(--text-primary);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-green-hover), #00aa55);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

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

.btn-secondary:hover {
    background-color: var(--secondary-bg);
    border-color: var(--accent-green);
    color: var(--text-accent);
}

.btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* 认证按钮组 */
.auth-buttons {
    display: flex;
    gap: 10px;
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-secondary);
    transition: all 0.3s ease;
}

/* 主内容区域 */
/* .homepage {
    padding-top: var(--header-height);
} */

/* 英雄区域样式 */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(0, 255, 136, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(68, 136, 255, 0.1) 0%, transparent 50%),
        linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(90deg, transparent 50%, rgba(0, 255, 136, 0.03) 50%),
        linear-gradient(0deg, transparent 50%, rgba(0, 255, 136, 0.03) 50%);
    background-size: 50px 50px;
    animation: grid-move 20s linear infinite;
}

@keyframes grid-move {
    0% {
        transform: translate(0, 0);
    }

    100% {
        transform: translate(50px, 50px);
    }
}

.hero-content {
    z-index: 1;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 滚动提示 */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-muted);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    font-size: 1.5rem;
    margin-top: 10px;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(-10px);
    }

    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* 章节标题样式 */
.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 50px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 快捷入口区域样式 */
.quick-access {
    padding: 100px 0;
    background: var(--secondary-bg);
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

/* 功能卡片样式 */
.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.1), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

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

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.card-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.card-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.card-stats {
    margin-bottom: 25px;
}

.stat-item {
    display: inline-block;
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-green);
}

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

.card-link {
    display: inline-block;
    padding: 10px 25px;
    background: linear-gradient(135deg, var(--accent-green), #00cc6a);
    color: var(--primary-bg);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: all 0.3s ease;
}

.card-link:hover {
    background: linear-gradient(135deg, var(--accent-green-hover), #00aa55);
    transform: translateY(-2px);
}

/* 平台特色区域样式 */
.platform-features {
    padding: 50px 0 0;
    background: var(--primary-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-item {
    text-align: center;
    padding: 40px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.05), transparent);
    transition: left 0.5s ease;
}

.feature-item:hover::before {
    left: 100%;
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-green);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 动态信息流样式 */
.dynamic-feed {
    padding: 50px 0;
    background: var(--primary-bg);
}

.tabs-container {
    margin: 0 auto;
}

.tabs-nav {
    display: flex;
    justify-content: center;
    gap: 0;
    margin-bottom: 40px;
    background: var(--secondary-bg);
    border-radius: var(--border-radius-large);
    padding: 5px;
}

.tab-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 15px 25px;
    background: transparent;
    color: var(--text-secondary);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.2rem;
    flex: 1;
    justify-content: center;
}

.tab-link.active {
    background: var(--accent-green);
    color: var(--text-primary);
}

.tab-link:hover {
    background: #ffaa00;
    color: var(--text-primary);
}

.tab-.tab-link:hover {
    background: var(--accent-green);
    color: var(--primary-bg);
}

icon {
    font-size: 1.1rem;
}

.tabs-content {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    padding: 30px;
}

.tab-content {
    display: none;
}

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

/* 内容列表样式 */
.content-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.list-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.list-item:hover {
    border-color: var(--accent-green);
    transform: translateX(5px);
}

.item-badge {
    padding: 4px 12px;
    border-radius: var(--border-radius-small);
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.item-badge.critical {
    background: var(--accent-red);
    color: white;
}

.item-badge.high {
    background: var(--accent-yellow);
    color: var(--primary-bg);
}

.item-badge.medium {
    background: var(--accent-blue);
    color: white;
}

.item-badge.hot {
    background: var(--accent-red);
    color: white;
}

.item-badge.trending {
    background: var(--accent-green);
    color: var(--primary-bg);
}

.item-content {
    flex: 1;
}

.item-content h4 {
    margin-bottom: 5px;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.item-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.item-action {
    flex-shrink: 0;
}

/* 空状态样式 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state h3 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

.empty-state p {
    margin-bottom: 30px;
}

/* 个人仪表盘样式 */
.personal-dashboard {
    padding: 100px 0;
    background: var(--secondary-bg);
}

.dashboard-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.welcome-message {
    margin-bottom: 50px;
}

.welcome-message h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.welcome-message p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.auth-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 平台统计数据滚动容器 */
.platform-stats-container {
    overflow: hidden;
    width: 100%;
    position: relative;
}

.platform-stats-scroll {
    display: flex;
    gap: 30px;
    animation: scroll-stats 30s linear infinite;
    width: calc(200% + 30px);
    /* 容纳两组数据 */
}

.platform-stats-scroll:hover {
    animation-play-state: paused;
}

@keyframes scroll-stats {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(calc(-50% - 15px));
        /* 移动一半距离 */
    }
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s ease;
    min-width: 200px;
    flex-shrink: 0;
}

.stat-card:hover {
    border-color: var(--accent-green);
    transform: translateY(-5px);
}

.stat-card .stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-green-hover);
    display: block;
    margin-bottom: 10px;
}

.stat-card .stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* 合作伙伴区域样式 */
.partners-section {
    padding: 80px 0;
    background: var(--secondary-bg);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

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

.partner-category h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.partner-logos {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    padding: 15px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.partner-item:hover {
    border-color: var(--accent-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

.partner-logo {
    font-size: 1.5rem;
}

.partner-item span {
    font-weight: 500;
    color: var(--text-secondary);
}

.partner-item:hover span {
    color: var(--text-primary);
}

/* 底部样式 */
.footer {
    background: var(--primary-bg);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-section li {
    margin-bottom: 10px;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--text-accent);
}

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

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 20px;
}

.copyright p {
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--text-accent);
}

.footer-links span {
    color: var(--border-color);
}

.platform-info {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.platform-info p {
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.platform-info p:first-child {
    font-weight: 500;
    color: var(--text-secondary);
}

.platform-info p:last-child {
    font-style: italic;
    color: var(--text-muted);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-green);
}


/* 动画效果 */
.animate-ready {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-in {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 用户信息区域样式 */
.user-profile {
    display: flex;
    align-items: center;
    gap: 15px;
}

.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.icon-btn:hover {
    color: var(--text-primary);
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

.user-status {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
    color: var(--accent-yellow);
}

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

.user-avatar img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
}