/**
 * 威客通首页样式
 * @version 1.0.0
 */

/* 基础重置 */
.vk-home * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.vk-home {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #ffffff;
    color: #37352f;
    line-height: 1.6;
}

/* 导航栏 */
.vk-home .navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    z-index: 1000;
    border-bottom: 1px solid rgba(55, 53, 47, 0.09);
}

.vk-home .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    color: #37352f;
    text-decoration: none;
}

.vk-home .logo-img {
    height: 36px;
    width: auto;
}

.vk-home .nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.vk-home .nav-links a {
    text-decoration: none;
    color: #37352f;
    font-size: 14px;
    font-weight: 500;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.vk-home .nav-links a:hover {
    opacity: 1;
}

.vk-home .nav-buttons {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* 按钮样式 */
.vk-home .btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.vk-home .btn-ghost {
    background: transparent;
    border: none;
    color: #37352f;
}

.vk-home .btn-ghost:hover {
    background: rgba(55, 53, 47, 0.08);
}

.vk-home .btn-primary {
    background: #37352f;
    color: white;
    border: none;
}

.vk-home .btn-primary:hover {
    background: #2f2d28;
}

.vk-home .btn-large {
    padding: 14px 28px;
    font-size: 16px;
    border-radius: 8px;
}

.vk-home .btn-gradient {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
    border: none;
}

.vk-home .btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

.vk-home .btn-outline {
    background: transparent;
    border: 1px solid rgba(55, 53, 47, 0.16);
    color: #37352f;
}

.vk-home .btn-outline:hover {
    background: rgba(55, 53, 47, 0.04);
}

/* Hero 区域 */
.vk-home .hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 40px 80px;
    background: linear-gradient(180deg, #ffffff 0%, #f7f6f3 100%);
}

.vk-home .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    color: #6366f1;
    margin-bottom: 24px;
}

.vk-home .hero-title {
    font-size: clamp(40px, 8vw, 76px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    max-width: 900px;
}

.vk-home .hero-title .gradient-text {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.vk-home .hero-subtitle {
    font-size: 20px;
    color: #6b6b6b;
    max-width: 600px;
    margin-bottom: 40px;
    line-height: 1.6;
}

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

/* 品牌展示 */
.vk-home .brands {
    padding: 60px 40px;
    text-align: center;
    background: #ffffff;
}

.vk-home .brands-title {
    font-size: 14px;
    color: #9b9b9b;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 32px;
}

.vk-home .brands-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
    opacity: 0.5;
}

.vk-home .brand-item {
    font-size: 24px;
    font-weight: 600;
    color: #9b9b9b;
}

/* 功能卡片区域 */
.vk-home .features {
    padding: 100px 40px;
    background: #f7f6f3;
}

.vk-home .section-header {
    text-align: center;
    margin-bottom: 64px;
}

.vk-home .section-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
}

.vk-home .section-subtitle {
    font-size: 18px;
    color: #6b6b6b;
    max-width: 600px;
    margin: 0 auto;
}

.vk-home .features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.vk-home .feature-card {
    background: white;
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s;
    border: 1px solid rgba(55, 53, 47, 0.09);
}

.vk-home .feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.vk-home .feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
}

.vk-home .feature-icon.purple { background: rgba(139, 92, 246, 0.1); }
.vk-home .feature-icon.blue { background: rgba(59, 130, 246, 0.1); }
.vk-home .feature-icon.green { background: rgba(34, 197, 94, 0.1); }
.vk-home .feature-icon.orange { background: rgba(249, 115, 22, 0.1); }

.vk-home .feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.vk-home .feature-desc {
    font-size: 15px;
    color: #6b6b6b;
    line-height: 1.6;
}

/* Bento Grid 展示区 */
.vk-home .bento {
    padding: 100px 40px;
    background: #ffffff;
}

.vk-home .bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 280px);
    gap: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.vk-home .bento-card {
    background: #f7f6f3;
    border-radius: 20px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
}

.vk-home .bento-card:hover {
    transform: scale(1.02);
}

.vk-home .bento-card.large {
    grid-column: span 2;
}

.vk-home .bento-card.tall {
    grid-row: span 2;
}

.vk-home .bento-card.purple {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    color: white;
}

.vk-home .bento-card.dark {
    background: #37352f;
    color: white;
}

.vk-home .bento-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
}

.vk-home .bento-desc {
    font-size: 15px;
    opacity: 0.8;
}

.vk-home .bento-emoji {
    font-size: 48px;
    margin-bottom: 20px;
}

/* CTA 区域 */
.vk-home .cta {
    padding: 120px 40px;
    text-align: center;
    background: linear-gradient(180deg, #f7f6f3 0%, #ffffff 100%);
}

.vk-home .cta-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 24px;
}

.vk-home .cta-subtitle {
    font-size: 18px;
    color: #6b6b6b;
    margin-bottom: 40px;
}

/* 页脚 */
.vk-home .footer {
    padding: 60px 40px;
    background: #37352f;
    color: white;
}

.vk-home .footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 48px;
}

.vk-home .footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 20px;
    margin-bottom: 16px;
}

.vk-home .footer-desc {
    font-size: 14px;
    opacity: 0.7;
    max-width: 280px;
}

.vk-home .footer-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.vk-home .footer-links {
    list-style: none;
}

.vk-home .footer-links li {
    margin-bottom: 12px;
}

.vk-home .footer-links a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.vk-home .footer-links a:hover {
    opacity: 1;
}

.vk-home .footer-bottom {
    max-width: 1200px;
    margin: 48px auto 0;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    opacity: 0.5;
}

/* 响应式 */
@media (max-width: 768px) {
    .vk-home .navbar {
        padding: 0 20px;
    }

    .vk-home .nav-links {
        display: none;
    }

    .vk-home .hero {
        padding: 100px 20px 60px;
    }

    .vk-home .hero-title {
        font-size: 36px;
    }

    .vk-home .hero-subtitle {
        font-size: 16px;
    }

    .vk-home .features,
    .vk-home .bento,
    .vk-home .cta {
        padding: 60px 20px;
    }

    .vk-home .bento-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

    .vk-home .bento-card.large,
    .vk-home .bento-card.tall {
        grid-column: span 1;
        grid-row: span 1;
    }

    .vk-home .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}