/* 雾链云 - 边缘计算平台样式文件 */

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    background-color: #fafbfc;
}



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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: bold;
    color: #1a73e8;
}

.nav-logo i {
    margin-right: 0.5rem;
    font-size: 2rem;
}

.logo-img {
    height: 40px;
    width: auto;
    margin-right: 0.8rem;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
}

.nav-menu a:hover {
    color: #1a73e8;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-login {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    transition: color 0.3s ease;
}

.btn-login:hover {
    color: #1a73e8;
}

.nav-toggle {
    display: none;
    flex-direction: column;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 按钮样式 */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: #1a73e8;
    color: white;
}

.btn-primary:hover {
    background: #1557b0;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: #1a73e8;
    border: 2px solid #1a73e8;
}

.btn-outline:hover {
    background: #1a73e8;
    color: white;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* 主横幅轮播样式 */
.hero-slider {
    margin-top: 80px;
    position: relative;
    height: 500px;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.slider-container {
    position: relative;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
    display: flex;
    align-items: center;
}

.slide.active {
    opacity: 1;
}

.slide-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.slide-text {
    color: white;
}

.slide-text h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.slide-text p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.slide-actions {
    display: flex;
    gap: 1rem;
}

.slide-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.reward-animation,
.device-animation,
.network-animation {
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
}

.reward-animation i,
.device-animation i,
.network-animation i {
    font-size: 5rem;
    color: #fbbf24;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.4);
    }
    70% {
        transform: scale(1.1);
        box-shadow: 0 0 0 10px rgba(255, 255, 255, 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
    }
}

/* 轮播控制 */
.slider-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid white;
    background: transparent;
    transition: all 0.3s ease;
}

.slider-dot.active {
    background: white;
}

/* 平台介绍 */
.platform-intro {
    padding: 80px 0;
    background: white;
    text-align: center;
}

.intro-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
}

.intro-content p {
    font-size: 1.2rem;
    color: #6b7280;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 通用区块样式 */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.2rem;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

/* 产品中心样式 */
.products {
    background: #f8fafc;
}

.product-category {
    margin-bottom: 4rem;
}

.product-category:last-child {
    margin-bottom: 0;
}

.product-category h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
    text-align: center;
}

.category-desc {
    text-align: center;
    color: #6b7280;
    margin-bottom: 2rem;
}

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

.product-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid transparent;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    border-color: #1a73e8;
}

.product-card.featured {
    border-color: #1a73e8;
    transform: scale(1.02);
}

.product-badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: #ef4444;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.product-image {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.product-image i {
    font-size: 2.5rem;
    color: white;
}

.product-card h4 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.product-desc {
    color: #6b7280;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.product-specs {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    font-size: 0.8rem;
}

.product-specs span {
    background: #f3f4f6;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    color: #374151;
}

/* 节点计划样式 */
.node-program {
    background: linear-gradient(135deg, #1a73e8 0%, #4285f4 100%);
    color: white;
}

.node-program .section-header h2,
.node-program .section-header p {
    color: white;
}

.node-hero {
    text-align: center;
    margin-bottom: 4rem;
}

.node-hero h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.node-hero p {
    font-size: 1.3rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.revenue-calculator {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 3rem;
    backdrop-filter: blur(10px);
    max-width: 800px;
    margin: 0 auto;
}

.revenue-calculator h3 {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.calculator-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.input-group {
    margin-bottom: 2rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.8rem;
    font-weight: 600;
    font-size: 1rem;
}

.input-group input[type="range"] {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
    outline: none;
    margin-bottom: 0.5rem;
}

.input-group input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: #fbbf24;
    border-radius: 50%;
}

.value-display {
    font-size: 1.2rem;
    font-weight: 700;
    color: #fbbf24;
}

.calculator-result {
    text-align: center;
}

.result-display {
    background: rgba(255, 255, 255, 0.2);
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 1rem;
}

.result-display h4 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.revenue-amount {
    font-size: 3rem;
    font-weight: 700;
    color: #fbbf24;
    display: block;
}

.result-note {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 核心优势样式 */
.advantages {
    background: white;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.advantage-card {
    text-align: center;
    padding: 2rem;
    border-radius: 12px;
    background: #f8fafc;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    background: white;
}

.advantage-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #1a73e8 0%, #4285f4 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.advantage-icon i {
    font-size: 2rem;
    color: white;
}

.advantage-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.advantage-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* 商务合作样式 */
.cooperation {
    background: #f8fafc;
}

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

.cooperation-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.cooperation-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.cooperation-icon {
    width: 60px;
    height: 60px;
    background: #eff6ff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.cooperation-icon i {
    font-size: 1.8rem;
    color: #1a73e8;
}

.cooperation-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.cooperation-card p {
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.cooperation-card ul {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
}

.cooperation-card li {
    padding: 0.5rem 0;
    color: #4b5563;
    position: relative;
    padding-left: 1.5rem;
}

.cooperation-card li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

/* 帮助中心样式 */
.support {
    background: white;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.support-card {
    text-align: center;
    padding: 2rem;
    border-radius: 12px;
    border: 2px solid #e5e7eb;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 280px;
}

.support-card:hover {
    border-color: #1a73e8;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(26, 115, 232, 0.1);
}

.support-icon {
    width: 60px;
    height: 60px;
    background: #eff6ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.support-icon i {
    font-size: 1.8rem;
    color: #1a73e8;
}

.support-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.support-card p {
    color: #6b7280;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.support-card .btn {
    margin-top: auto;
}

/* 页脚样式 */
.footer {
    background: #1f2937;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: #1a73e8;
}

.footer-logo i {
    margin-right: 0.5rem;
    font-size: 2rem;
}

.footer-logo .logo-img {
    height: 36px;
    width: auto;
    margin-right: 0.8rem;
    object-fit: contain;
}

.footer-brand p {
    color: #9ca3af;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #1a73e8;
}

.footer-social h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: white;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.social-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem;
    background: #374151;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.social-item:hover {
    background: #1a73e8;
}

.social-item i {
    font-size: 1.2rem;
    color: #1a73e8;
}

.social-item:hover i {
    color: white;
}

.social-item span {
    font-size: 0.9rem;
    color: #d1d5db;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
}

.footer-legal {
    text-align: center;
}

.footer-legal p {
    color: #9ca3af;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-legal a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-legal a:hover {
    color: #1a73e8;
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-actions {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .logo-img {
        height: 32px;
    }
    
    .footer-logo .logo-img {
        height: 28px;
    }
    
    .slide-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .slide-text h1 {
        font-size: 2rem;
    }
    
    .slide-text p {
        font-size: 1rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .cooperation-grid {
        grid-template-columns: 1fr;
    }
    
    .support-grid {
        grid-template-columns: 1fr;
    }
    
    .calculator-container {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        display: none;
    }
    
    .footer-bottom {
        text-align: center;
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .slide-text h1 {
        font-size: 1.8rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .revenue-calculator {
        padding: 2rem;
    }
    
    .revenue-amount {
        font-size: 2rem;
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 额外的动画效果 */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}