/* 首页样式 - 提取自 welcome.php */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: #0a0a1a;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    color: white;
}

/* 动态渐变背景 */
.bg-animation {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    overflow: hidden;
}

.gradient-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
    animation: float 20s ease-in-out infinite;
}

.blob1 {
    width: 500px; height: 500px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    top: -100px; left: -100px;
    animation-delay: 0s;
}

.blob2 {
    width: 400px; height: 400px;
    background: linear-gradient(135deg, #f093fb, #f5576c);
    bottom: -100px; right: -100px;
    animation-delay: -5s;
}

.blob3 {
    width: 300px; height: 300px;
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    top: 50%; left: 50%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(100px, -100px) scale(1.1); }
    66% { transform: translate(-50px, 50px) scale(0.9); }
}

/* 粒子画布 */
#particles-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 1;
}

/* 主容器 */
.container {
    position: relative;
    z-index: 10;
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
}

/* 顶部导航 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 22px;
    font-weight: 700;
}

.logo-icon {
    width: 40px; height: 40px;
    border-radius: 10px;
    overflow: hidden;
}
.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.nav-buttons {
    display: flex;
    gap: 16px;
}

.btn {
    padding: 10px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.5);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.6);
}

/* Hero区域 */
.hero {
    text-align: center;
    padding: 80px 0;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
}

.hero-badge .pulse {
    display: inline-block;
    width: 8px; height: 8px;
    background: #4ade80;
    border-radius: 50%;
    margin-right: 8px;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.3); }
}

.hero-title {
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #fff 0%, #a855f7 50%, #ec4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(18px, 2.5vw, 24px);
    color: rgba(255,255,255,0.7);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-large {
    padding: 16px 36px;
    font-size: 16px;
}

/* 特性卡片 */
.features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 80px;
}

.feature-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s;
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.2);
    transform: translateY(-5px);
}

.feature-icon {
    width: 56px; height: 56px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.3), rgba(118, 75, 162, 0.3));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: white;
}

.feature-desc {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    line-height: 1.6;
}

/* 统计数据 */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 60px;
    padding: 40px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 24px;
    backdrop-filter: blur(10px);
}

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

.stat-number {
    font-size: 36px;
    font-weight: 800;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 13px;
    color: rgba(255,255,255,0.5);
    margin-top: 4px;
}

/* 底部 */
.footer {
    text-align: center;
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.4);
    font-size: 13px;
}

.footer a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
}

.footer a:hover {
    color: white;
}

/* 响应式 */
@media (max-width: 768px) {
    .container { padding: 30px 16px; }
    .hero { padding: 40px 0; }
    .navbar { margin-bottom: 40px; }
    .features { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .feature-card { padding: 20px; }
    .feature-icon { width: 44px; height: 44px; font-size: 22px; margin-bottom: 14px; }
    .feature-title { font-size: 15px; margin-bottom: 8px; }
    .feature-desc { font-size: 12px; line-height: 1.5; }
    .stats { grid-template-columns: repeat(2, 1fr); gap: 16px; padding: 24px 20px; }
    .stat-number { font-size: 28px; }
}