/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 页面加载动画 */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 4px solid rgba(0, 191, 255, 0.2);
    border-top-color: var(--primary-color);
    animation: spin 1s infinite linear;
    position: relative;
}

.loader::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border-radius: 50%;
    border: 4px solid transparent;
    border-bottom-color: var(--secondary-color);
    animation: spin 1.5s infinite linear reverse;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.page-loader.loaded {
    opacity: 0;
    visibility: hidden;
}

:root {
    --primary-color: #00BFFF;
    --secondary-color: #4682B4;
    --accent-color: #87CEEB;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --background-light: #f7fafc;
    --white: #ffffff;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-strong: 0 15px 35px rgba(0, 145, 234, 0.2);
    --shadow-inset: inset 0 0 0 1px rgba(255, 255, 255, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s ease;
    --card-border: 1px solid rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-bg-dark: rgba(31, 41, 55, 0.85);
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(0, 191, 255, 0.1);
    box-shadow: 
        0 4px 20px rgba(0, 191, 255, 0.07),
        0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-img {
    width: 40px;
    height: 40px;
    margin-right: 10px;
    border-radius: 6px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.nav-logo h2 {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 24px;
    font-weight: 700;
    margin: 0;
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
}

/* 主页横幅 */
.hero-wrapper {
    min-height: 100vh;
    position: relative;
    background: linear-gradient(135deg, #00BFFF 0%, #4682B4 100%);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1400px;
    padding: 0 50px;
    z-index: 2;
    position: relative;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.15;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-element {
    position: absolute;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    width: 60px;
    height: 60px;
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
    flex: 1;
    max-width: 650px;
    color: white;
    z-index: 2;
    padding: 0 30px;
    margin-right: 50px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, #fff, #87CEEB);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 30px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #00BFFF, #4682B4);
    color: white;
    box-shadow: 
        0 6px 20px rgba(0, 191, 255, 0.35),
        0 2px 8px rgba(0, 0, 0, 0.08),
        inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
    z-index: -1;
    transition: opacity 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 
        0 12px 30px rgba(0, 191, 255, 0.5),
        0 4px 10px rgba(0, 0, 0, 0.1),
        inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.btn-primary:hover::before {
    opacity: 0.8;
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

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

.btn-outline {
    background: rgba(255, 255, 255, 0.1);
    color: var(--primary-color);
    border: 1.5px solid var(--primary-color);
    box-shadow: 
        0 3px 10px rgba(0, 191, 255, 0.1),
        inset 0 0 0 1px rgba(0, 191, 255, 0.05);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(5px);
}

.btn-outline::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        to bottom right,
        rgba(0, 191, 255, 0.1),
        rgba(0, 191, 255, 0.05) 30%,
        rgba(0, 191, 255, 0.0) 70%
    );
    transform: rotate(30deg);
    opacity: 0;
    transition: all 0.5s ease;
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 
        0 8px 20px rgba(0, 191, 255, 0.25),
        0 3px 8px rgba(0, 0, 0, 0.1);
}

.btn-outline:hover::after {
    opacity: 1;
    transform: rotate(0deg);
}

/* AI大脑视觉效果 */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
    min-width: 400px;
}

.ai-brain {
    position: relative;
    width: 400px;
    height: 400px;
}

.brain-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, #00BFFF, #4682B4);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 
        0 0 40px rgba(0, 191, 255, 0.8),
        0 0 80px rgba(0, 191, 255, 0.4),
        inset 0 0 20px rgba(255, 255, 255, 0.2);
    border: 3px solid rgba(255, 255, 255, 0.3);
}

.neural-network {
    position: absolute;
    width: 100%;
    height: 100%;
}

/* 添加神经网络连接线 */
.neural-network::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at center, transparent 40%, rgba(0, 191, 255, 0.1) 45%, transparent 50%),
        conic-gradient(from 0deg, 
            transparent 0deg, 
            rgba(0, 191, 255, 0.3) 72deg, 
            transparent 144deg, 
            rgba(0, 191, 255, 0.3) 216deg, 
            transparent 288deg, 
            rgba(0, 191, 255, 0.3) 360deg);
    transform: translate(-50%, -50%);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
    pointer-events: none;
    border: 1px dashed rgba(255, 255, 255, 0.3);
    box-shadow: 
        0 0 50px rgba(0, 191, 255, 0.4),
        inset 0 0 50px rgba(70, 130, 180, 0.3);
}

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.neuron {
    position: absolute;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(135, 206, 235, 0.8));
    border-radius: 50%;
    animation: neuronPulse 3s ease-in-out infinite;
    box-shadow: 
        0 0 15px rgba(255, 255, 255, 0.6),
        0 0 30px rgba(0, 191, 255, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.neuron:nth-child(1) { top: 0; left: 50%; transform: translateX(-50%); animation-delay: 0s; }
.neuron:nth-child(2) { top: 50%; right: 0; transform: translateY(-50%); animation-delay: 0.6s; }
.neuron:nth-child(3) { bottom: 0; left: 50%; transform: translateX(-50%); animation-delay: 1.2s; }
.neuron:nth-child(4) { top: 50%; left: 0; transform: translateY(-50%); animation-delay: 1.8s; }
.neuron:nth-child(5) { top: 20%; right: 20%; animation-delay: 2.4s; }

@keyframes neuronPulse {
    0%, 100% { 
        opacity: 0.7; 
        transform: scale(1);
        box-shadow: 
            0 0 15px rgba(255, 255, 255, 0.6),
            0 0 30px rgba(0, 191, 255, 0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.3);
        box-shadow: 
            0 0 25px rgba(255, 255, 255, 0.9),
            0 0 50px rgba(0, 191, 255, 0.6);
    }
}

/* 服务部分 */
.services {
    padding: 100px 0;
    background: linear-gradient(
        to bottom,
        rgba(240, 249, 255, 0.9), 
        rgba(230, 245, 255, 0.95)
    );
    position: relative;
    overflow: hidden;
}

.services::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    top: -25%;
    left: -25%;
    background: 
        radial-gradient(
            circle at 20% 30%,
            rgba(0, 191, 255, 0.05) 0%, 
            transparent 50%
        ),
        radial-gradient(
            circle at 80% 70%,
            rgba(70, 130, 180, 0.05) 0%, 
            transparent 50%
        );
    z-index: 0;
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
    position: relative;
    z-index: 1;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.service-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    z-index: 1;
    overflow: hidden;
    box-shadow: 
        0 8px 30px rgba(0, 191, 255, 0.12),
        0 4px 10px rgba(0, 0, 0, 0.06),
        var(--shadow-inset);
    border: var(--card-border);
    transform: translateY(0);
    will-change: transform, box-shadow;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(120deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0) 70%);
    z-index: -1;
    opacity: 0.8;
    transition: all 0.4s ease;
}

.service-card::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, 
                rgba(0, 191, 255, 0.3) 0%, 
                rgba(70, 130, 180, 0.2) 50%,
                rgba(135, 206, 235, 0.1) 100%);
    z-index: -2;
    transition: transform 0.6s cubic-bezier(0.215, 0.61, 0.355, 1);
    transform: translateY(0);
    opacity: 0.8;
    border-radius: var(--border-radius);
    pointer-events: none;
}

.service-card:hover::after {
    transform: translateY(-100%);
}

.service-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 20px 40px rgba(0, 191, 255, 0.20),
        0 8px 15px rgba(0, 0, 0, 0.08),
        var(--shadow-inset);
}

.service-icon {
    width: 85px;
    height: 85px;
    margin: -10px auto 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: white;
    box-shadow: 
        0 10px 25px rgba(0, 191, 255, 0.35),
        0 3px 8px rgba(0, 0, 0, 0.12),
        inset 0 0 0 2px rgba(255, 255, 255, 0.15);
    position: relative;
    z-index: 1;
    transform: translateY(-15px);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.service-card:hover .service-icon {
    transform: translateY(-22px) scale(1.05);
    box-shadow: 
        0 15px 35px rgba(0, 191, 255, 0.45),
        0 5px 15px rgba(0, 0, 0, 0.15),
        inset 0 0 0 3px rgba(255, 255, 255, 0.25);
}

.service-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

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

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.service-features span {
    background: linear-gradient(135deg, rgba(0, 191, 255, 0.1), rgba(70, 130, 180, 0.08));
    color: var(--primary-color);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid rgba(0, 191, 255, 0.15);
    box-shadow: 
        0 3px 8px rgba(0, 191, 255, 0.08),
        inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
    transition: all 0.3s ease;
}

.service-features span:hover {
    background: linear-gradient(135deg, rgba(0, 191, 255, 0.15), rgba(70, 130, 180, 0.12));
    transform: translateY(-2px);
    box-shadow: 
        0 5px 10px rgba(0, 191, 255, 0.12),
        inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

/* 产品展示 */
.products {
    padding: 100px 0;
    background: white;
}

.products-showcase {
    display: grid;
    gap: 40px;
}

.product-item {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    align-items: center;
    padding: 40px;
    border-radius: var(--border-radius);
    background: rgba(247, 250, 252, 0.95);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 
        0 15px 40px rgba(0, 191, 255, 0.08), 
        0 5px 15px rgba(0, 0, 0, 0.04),
        inset 0 0 0 1px rgba(255, 255, 255, 0.6);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.product-item:nth-child(even) {
    grid-template-columns: 2fr 1fr;
}

.product-item:nth-child(even) .product-image {
    order: 2;
}

.product-item:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 
        0 25px 50px rgba(0, 191, 255, 0.15), 
        0 10px 20px rgba(0, 0, 0, 0.08),
        inset 0 0 0 1px rgba(255, 255, 255, 0.8);
    background: rgba(250, 252, 254, 0.98);
}

.product-item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 0;
    background: linear-gradient(90deg, rgba(0, 191, 255, 0.2), rgba(70, 130, 180, 0.2));
    transition: all 0.4s cubic-bezier(0.19, 1, 0.22, 1);
    opacity: 0;
}

.product-item:hover::after {
    height: 4px;
    opacity: 1;
    box-shadow: 0 0 20px rgba(0, 191, 255, 0.4);
}

.product-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.product-preview {
    width: 220px;
    height: 220px;
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 20px 40px rgba(0, 191, 255, 0.3),
        0 5px 15px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    transform: rotate(-2deg);
}

.product-preview::before {
    content: '';
    position: absolute;
    top: -10%;
    left: -10%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.4) 0%, transparent 70%);
    opacity: 0.8;
}

.product-preview::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: 
        linear-gradient(120deg, rgba(255, 255, 255, 0) 30%, 
        rgba(255, 255, 255, 0.2) 48%, 
        rgba(255, 255, 255, 0) 70%);
    transform: translateX(-100%);
    transition: all 1s cubic-bezier(0.19, 1, 0.22, 1);
}

.product-icon-wrapper {
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 10px 20px rgba(0, 0, 0, 0.1),
        inset 0 0 0 1px rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.product-icon-wrapper::after {
    content: '';
    position: absolute;
    width: 140%;
    height: 140%;
    top: -20%;
    left: -20%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    opacity: 0.5;
}

.product-icon-fa {
    font-size: 60px;
    color: white;
    transition: all 0.3s ease;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.product-ai-chat {
    background: linear-gradient(135deg, #00BFFF, #4682B4);
}

.product-ai-analysis {
    background: linear-gradient(135deg, #4682B4, #00BFFF);
}

.product-ai-security {
    background: linear-gradient(135deg, #00BFFF, #87CEEB);
}

.product-item:hover .product-preview {
    transform: rotate(0deg) scale(1.05);
    box-shadow: 
        0 30px 60px rgba(0, 191, 255, 0.4),
        0 8px 25px rgba(0, 0, 0, 0.15);
}

.product-item:hover .product-preview::after {
    transform: translateX(100%);
}

.product-item:hover .product-icon-wrapper {
    transform: scale(1.1);
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.15),
        inset 0 0 0 1px rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.25);
}

.product-item:hover .product-icon-fa {
    transform: scale(1.1);
}

.product-info h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.product-info p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.product-info ul {
    list-style: none;
    margin-bottom: 30px;
}

.product-info li {
    padding: 8px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 25px;
}

.product-info li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 数据统计 */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    display: block;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background: white;
    position: relative;
}

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

.about-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
    font-size: 1.1rem;
}

.about-features {
    display: grid;
    gap: 25px;
    margin-top: 40px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: rgba(247, 250, 252, 0.8);
    border-radius: var(--border-radius);
    box-shadow: 
        0 10px 30px rgba(0, 191, 255, 0.08),
        0 4px 10px rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
    opacity: 0.7;
    transition: all 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: 
        0 15px 35px rgba(0, 191, 255, 0.12),
        0 5px 15px rgba(0, 0, 0, 0.05);
    background: rgba(255, 255, 255, 0.95);
}

.feature:hover::after {
    width: 6px;
    opacity: 1;
}

.feature-icon-wrapper {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 
        0 8px 20px rgba(0, 191, 255, 0.3),
        0 4px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.feature-icon-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.3), transparent 70%);
    border-radius: 15px;
    opacity: 0.7;
}

.feature-icon {
    color: white;
    font-size: 26px;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.feature:hover .feature-icon-wrapper {
    transform: scale(1.1) rotate(5deg);
}

.feature:hover .feature-icon {
    transform: scale(1.1);
}

.feature-text {
    flex: 1;
}

.feature-text h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.feature-text p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.4;
}

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

.team-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    perspective: 1000px;
}

.team-member {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    opacity: 0.9;
    transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    box-shadow: 
        0 15px 35px rgba(0, 191, 255, 0.2),
        0 5px 15px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    transform: rotate(-5deg);
}

.team-member::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.3), transparent 70%);
    opacity: 0.7;
}

.team-member::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        rgba(255, 255, 255, 0.2),
        rgba(255, 255, 255, 0.1),
        transparent
    );
    transform: rotate(45deg);
    opacity: 0.1;
    transition: all 0.6s ease;
}

.team-member:nth-child(even) {
    transform: rotate(5deg);
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
}

.team-member:hover {
    opacity: 1;
    transform: translateY(-10px) rotate(0);
    box-shadow: 
        0 25px 50px rgba(0, 191, 255, 0.3),
        0 10px 20px rgba(0, 0, 0, 0.1);
}

.team-member:hover::after {
    opacity: 0.3;
    transform: rotate(45deg) translateY(-50%);
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: var(--background-light);
    position: relative;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info {
    display: grid;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 30px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.contact-item p {
    color: var(--text-secondary);
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e2e8f0;
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 191, 255, 0.2);
    background: white;
}

.form-group.focused {
    transform: translateY(-2px);
}

.form-group input.error,
.form-group textarea.error {
    border-color: #ff3860;
    box-shadow: 0 0 0 2px rgba(255, 56, 96, 0.2);
}

.error-message {
    color: #ff3860;
    font-size: 12px;
    margin-top: 5px;
    display: block;
}

.form-group input.has-content,
.form-group textarea.has-content {
    border-color: #00BFFF;
    background: rgba(255, 255, 255, 0.95);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* 页脚 */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 60px 0 20px;
    position: relative;
    overflow: hidden;
    z-index: 2;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.footer-logo-img {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    margin-right: 10px;
    border-radius: 6px;
    display: block;
}

.footer-section h3 {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin: 0;
    padding: 0;
    line-height: 1.2;
    font-size: 20px;
    display: block;
}

.footer-section p {
    color: #a0aec0;
    margin-bottom: 20px;
}

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

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

.footer-section ul li a {
    color: #a0aec0;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.footer-bottom {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    margin: 10px 0;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 15px 0;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.85rem;
    text-decoration: none;
    transition: var(--transition);
}

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

.icp-info a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 0.8rem;
    transition: var(--transition);
}

.icp-info a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* 响应式设计 */
@media (min-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 35px;
    }
}

@media (max-width: 1199px) and (min-width: 769px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .logo-img {
        width: 35px;
        height: 35px;
        margin-right: 8px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        gap: 0;
        transition: right 0.3s ease;
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
        overflow-y: auto;
        backdrop-filter: blur(10px);
        padding: 20px 0;
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        padding: 15px 30px;
        display: block;
        border-bottom: 1px solid rgba(0, 191, 255, 0.1);
    }

    .nav-menu a::after {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-wrapper {
        padding: 120px 0 60px;
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding: 0 20px;
    }

    .hero-content {
        width: 100%;
        padding-right: 0;
        margin-bottom: 50px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-visual {
        width: 100%;
        max-width: 400px;
    }

    .ai-brain {
        margin: 0 auto;
        transform: scale(0.9);
    }

    .brain-core {
        width: 100px;
        height: 100px;
    }

    .floating-element {
        opacity: 0.5;
    }

    .floating-element:nth-child(1) {
        width: 60px;
        height: 60px;
    }

    .floating-element:nth-child(2) {
        width: 80px;
        height: 80px;
    }

    .floating-element:nth-child(3) {
        width: 40px;
        height: 40px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .product-item,
    .product-item:nth-child(even) {
        flex-direction: column;
        padding: 30px 20px;
    }

    .product-item:nth-child(even) .product-image {
        order: 0;
    }

    .about-content {
        flex-direction: column;
        gap: 40px;
    }

    .contact-content {
        flex-direction: column;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 30px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 250px;
        margin: 10px 0;
    }

    .footer-content {
        flex-direction: column;
        gap: 30px;
    }

    .footer-section {
        width: 100%;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .wave-decoration svg {
        height: 100px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-description {
        font-size: 0.9rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

    .product-info h3 {
        font-size: 1.4rem;
    }

    .about-text h2 {
        font-size: 1.8rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .back-to-top {
        right: 15px;
        bottom: 15px;
        width: 40px;
        height: 40px;
    }
}

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

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

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 191, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
    border-radius: 5px;
}

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

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 191, 255, 0.3);
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0, 191, 255, 0.5);
}

/* 波浪装饰效果 */
.wave-decoration {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    line-height: 0;
    z-index: -1;
}

.wave-decoration svg {
    position: relative;
    display: block;
    width: 100%;
    height: 200px;
}

.wave-decoration path:nth-child(1) {
    fill: #00BFFF;
    fill-opacity: 0.15;
}

.wave-decoration path:nth-child(2) {
    fill: #4682B4;
    fill-opacity: 0.15;
}

.wave-decoration path:nth-child(3) {
    fill: #87CEEB;
    fill-opacity: 0.15;
}

@keyframes pulse {
    0%, 100% { 
        transform: translate(-50%, -50%) scale(1);
        box-shadow: 
            0 0 40px rgba(0, 191, 255, 0.8),
            0 0 80px rgba(0, 191, 255, 0.4),
            inset 0 0 20px rgba(255, 255, 255, 0.2);
    }
    50% { 
        transform: translate(-50%, -50%) scale(1.15);
        box-shadow: 
            0 0 60px rgba(0, 191, 255, 1),
            0 0 120px rgba(0, 191, 255, 0.6),
            inset 0 0 30px rgba(255, 255, 255, 0.4);
    }
}