/* ========================================
   杭州创企家园 AI 服务企业网站 - V2 设计
   深色主题 + 渐变霓虹 + 毛玻璃效果
   ======================================== */

/* 全局样式重置与基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 深色主题色板 */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(30, 30, 45, 0.6);
    --bg-glass: rgba(255, 255, 255, 0.05);
    
    /* 霓虹渐变色 */
    --neon-primary: #00ffff;
    --neon-cyan: #00d4ff;
    --neon-blue: #0066ff;
    --neon-purple: #bd00ff;
    --neon-pink: #ff0080;
    --neon-green: #00ff88;
    
    /* 渐变定义 */
    --gradient-primary: linear-gradient(135deg, #00ffff 0%, #0066ff 50%, #bd00ff 100%);
    --gradient-hero: linear-gradient(180deg, #0a0a0f 0%, #1a1a2e 50%, #0a0a0f 100%);
    --gradient-card: linear-gradient(135deg, rgba(30, 30, 50, 0.8) 0%, rgba(20, 20, 40, 0.9) 100%);
    --gradient-text: linear-gradient(90deg, #00ffff 0%, #0066ff 50%, #bd00ff 100%);
    
    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    /* 边框与阴影 */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(0, 255, 255, 0.3);
    --shadow-neon: 0 0 20px rgba(0, 255, 255, 0.3), 0 0 40px rgba(0, 102, 255, 0.2);
    --shadow-neon-purple: 0 0 20px rgba(189, 0, 255, 0.3), 0 0 40px rgba(255, 0, 128, 0.2);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.5);
    
    /* 毛玻璃效果 */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: blur(20px);
    
    /* 过渡动画 */
    --transition-fast: all 0.2s ease;
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    background-image: 
        radial-gradient(ellipse at top left, rgba(0, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(189, 0, 255, 0.05) 0%, transparent 50%);
    min-height: 100vh;
    overflow-x: hidden;
}

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

/* 导航栏 - 毛玻璃效果 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.navbar-logo {
    font-size: 24px;
    font-weight: bold;
    text-decoration: none;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-menu {
    display: flex;
    gap: 30px;
}

.navbar-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

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

.navbar-menu a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.navbar-menu a:hover::after {
    width: 100%;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--neon-primary);
    transition: var(--transition);
}

/* Hero 区域 - 霓虹渐变背景 */
.hero {
    padding: 180px 0 120px;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

/* 视频背景容器 */
.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    transform: translate(-50%, -50%);
    object-fit: cover;
    opacity: 0.7;
    /* 确保视频在所有情况下都可见 */
    visibility: visible;
}

/* Hero 区域遮罩层 */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 15, 0.7);
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1000px;
    height: 1000px;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.15) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
    z-index: 2;
}

@keyframes pulse {
    0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.5; }
    50% { transform: translateX(-50%) scale(1); opacity: 0.8; }
}

.hero .container {
    position: relative;
    z-index: 3;
    text-align: center;
}

.hero h1 {
    font-size: 56px;
    font-weight: bold;
    margin-bottom: 24px;
    line-height: 1.2;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.hero p {
    font-size: 20px;
    margin-bottom: 48px;
    color: var(--text-secondary);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-btn {
    display: inline-block;
    padding: 18px 50px;
    background: var(--gradient-primary);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 16px;
    transition: var(--transition);
    box-shadow: var(--shadow-neon);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.5), 0 0 60px rgba(0, 102, 255, 0.3);
}

/* 特色服务 - 毛玻璃卡片 */
.features {
    padding: 100px 0;
    background: var(--bg-secondary);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(189, 0, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.features h2 {
    text-align: center;
    font-size: 42px;
    margin-bottom: 80px;
    color: var(--text-primary);
}

.features h2 span {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 40px 35px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

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

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

.feature-icon {
    font-size: 50px;
    margin-bottom: 24px;
    filter: drop-shadow(0 0 10px rgba(0, 255, 255, 0.5));
}

.feature-card:nth-child(1) .feature-icon { filter: drop-shadow(0 0 10px rgba(0, 255, 255, 0.5)); }
.feature-card:nth-child(2) .feature-icon { filter: drop-shadow(0 0 10px rgba(0, 255, 136, 0.5)); }
.feature-card:nth-child(3) .feature-icon { filter: drop-shadow(0 0 10px rgba(189, 0, 255, 0.5)); }
.feature-card:nth-child(4) .feature-icon { filter: drop-shadow(0 0 10px rgba(255, 0, 128, 0.5)); }
.feature-card:nth-child(5) .feature-icon { filter: drop-shadow(0 0 10px rgba(0, 255, 255, 0.5)); }
.feature-card:nth-child(6) .feature-icon { filter: drop-shadow(0 0 10px rgba(0, 102, 255, 0.5)); }

.feature-card h3 {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-muted);
    line-height: 1.8;
    font-size: 15px;
}

/* 服务分类 - 霓虹边框卡片 */
.services-section {
    padding: 100px 0;
}

.services-section h2 {
    text-align: center;
    font-size: 42px;
    margin-bottom: 80px;
    color: var(--text-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.service-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    padding: 40px 30px;
    text-decoration: none;
    color: var(--text-primary);
    position: relative;
}

/* 旧结构兼容：首页和新闻页的 service-item（div 包裹 a） */
.services-grid > div.service-item {
    padding: 0;
}

.services-grid > div.service-item a {
    display: block;
    padding: 40px 30px;
    text-decoration: none;
    color: var(--text-primary);
}

.services-grid > div.service-item h3 {
    font-size: 20px;
    margin-bottom: 12px;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.services-grid > div.service-item p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
}

/* 新闻页卡片样式 */
.services-grid > div.service-item .service-card {
    background: transparent;
}

.services-grid > div.service-item .service-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.services-grid > div.service-item .service-card p {
    font-size: 13px;
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-item:hover::before {
    transform: scaleX(1);
}

.service-item:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-neon);
    transform: translateY(-8px);
}

.service-icon-wrap {
    margin-bottom: 24px;
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    transition: var(--transition);
    position: relative;
}

.service-icon-cyan {
    background: linear-gradient(135deg, rgba(0, 255, 255, 0.15) 0%, rgba(0, 255, 255, 0.05) 100%);
    border: 1px solid rgba(0, 255, 255, 0.3);
    color: #00ffff;
}

.service-icon-green {
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.15) 0%, rgba(0, 255, 136, 0.05) 100%);
    border: 1px solid rgba(0, 255, 136, 0.3);
    color: #00ff88;
}

.service-icon-purple {
    background: linear-gradient(135deg, rgba(189, 0, 255, 0.15) 0%, rgba(189, 0, 255, 0.05) 100%);
    border: 1px solid rgba(189, 0, 255, 0.3);
    color: #bd00ff;
}

.service-icon-pink {
    background: linear-gradient(135deg, rgba(255, 0, 128, 0.15) 0%, rgba(255, 0, 128, 0.05) 100%);
    border: 1px solid rgba(255, 0, 128, 0.3);
    color: #ff0080;
}

.service-icon-blue {
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.15) 0%, rgba(0, 102, 255, 0.05) 100%);
    border: 1px solid rgba(0, 102, 255, 0.3);
    color: #0066ff;
}

.service-icon-amber {
    background: linear-gradient(135deg, rgba(255, 170, 0, 0.15) 0%, rgba(255, 170, 0, 0.05) 100%);
    border: 1px solid rgba(255, 170, 0, 0.3);
    color: #ffaa00;
}

.service-item:hover .service-icon {
    transform: scale(1.1);
    box-shadow: 0 0 20px currentColor;
}

.service-content h3 {
    font-size: 20px;
    margin-bottom: 16px;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.service-content p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.8;
}

/* 关于我们 */
.about-section {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 42px;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 16px;
}

.about-text ul {
    margin: 30px 0;
    padding-left: 30px;
}

.about-text li {
    margin-bottom: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    list-style: none;
    position: relative;
}

.about-text li::before {
    content: '→';
    position: absolute;
    left: -20px;
    color: var(--neon-primary);
}

/* 联系我们 - 毛玻璃表单 */
.contact-section {
    padding: 100px 0;
}

.contact-container {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: 24px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.contact-info {
    padding: 60px;
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.contact-info::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.contact-info * {
    position: relative;
    z-index: 1;
}

.contact-info h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.contact-info p {
    margin-bottom: 30px;
    opacity: 0.95;
    color: var(--text-primary);
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.contact-item i {
    font-size: 24px;
    margin-right: 15px;
}

.contact-form {
    padding: 60px;
}

.contact-form h2 {
    font-size: 30px;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    color: var(--text-primary);
    transition: var(--transition);
    appearance: none;
    -webkit-appearance: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--neon-primary);
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select {
    width: 100%;
    padding: 14px 18px;
    background: var(--glass-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    color: var(--text-primary);
    transition: var(--transition);
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
}

.form-group select option {
    background-color: rgba(20, 20, 40, 0.95);
    color: var(--text-primary);
    padding: 10px 15px;
}

.form-group select option:hover {
    background-color: rgba(0, 255, 255, 0.2);
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: var(--gradient-primary);
    color: var(--text-primary);
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-neon);
}

.submit-btn:hover {
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.5), 0 0 60px rgba(0, 102, 255, 0.3);
    transform: translateY(-2px);
}

/* 页脚 */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer h3 {
    font-size: 20px;
    margin-bottom: 25px;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer p {
    color: var(--text-muted);
    margin-bottom: 15px;
    line-height: 1.6;
}

.footer-links a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 12px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--neon-primary);
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .features h2,
    .services-section h2,
    .about-text h2 {
        font-size: 32px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info,
    .contact-form {
        padding: 40px 30px;
    }
    
    .navbar-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        flex-direction: column;
        padding: 30px;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 999;
    }
    
    .navbar-menu.active {
        transform: translateY(0);
    }
    
    .hamburger {
        display: flex;
    }
    
    /* 响应式：服务页卡片布局 */
    .features-grid,
    .grid-3x2,
    .grid-4 {
        grid-template-columns: 1fr !important;
    }
    
    .service-item {
        padding: 30px 20px;
    }
    
    .services-grid > div.service-item a {
        padding: 30px 20px;
    }
    
    .service-icon {
        width: 56px;
        height: 56px;
    }
}

/* 辅助动画类 */
.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

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

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--neon-primary);
}