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

:root {
    --primary-blue: #2563eb;
    --secondary-blue: #1d4ed8;
    --accent-cyan: #0ea5e9;
    --light-blue: #e0f2fe;
    --bright-blue: #3b82f6;
    --gradient-primary: linear-gradient(135deg, #2563eb, #0ea5e9);
    --gradient-secondary: linear-gradient(45deg, #1d4ed8, #3b82f6);
    --gradient-accent: linear-gradient(90deg, #0ea5e9, #2563eb, #8b5cf6);
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-light: #ffffff;
    --background-light: #f8fafc;
    --background-white: #ffffff;
    --background-card: rgba(255, 255, 255, 0.95);
    --background-blue-light: rgba(59, 130, 246, 0.05);
    --shadow-glow: 0 0 30px rgba(37, 99, 235, 0.3);
    --shadow-card: 0 8px 32px rgba(37, 99, 235, 0.1);
    --border-light: rgba(37, 99, 235, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--background-light);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 渐变文字效果 */
.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 2px 20px rgba(37, 99, 235, 0.1);
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-logo i {
    color: var(--accent-cyan);
    animation: brain-pulse 2s ease-in-out infinite;
}

@keyframes brain-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.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(--accent-cyan);
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

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

/* 视频背景样式 - 确保正确显示 */
#hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
    opacity: 1;
    /* 添加调试边框 */
    border: 2px solid red;
}

/* 视频覆盖层 - 调整透明度 */
.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg, 
        rgba(255, 255, 255, 0.2) 0%, 
        rgba(37, 99, 235, 0.03) 50%, 
        rgba(14, 165, 233, 0.03) 100%
    );
    z-index: 2;
}

/* 保留简化的浮动粒子效果 - 暂时注释 */
/*
.floating-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-particles::before,
.floating-particles::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    background: radial-gradient(circle, #0ea5e9, #2563eb);
    border-radius: 50%;
    animation: simple-float 4s ease-in-out infinite;
    box-shadow: 0 0 10px var(--accent-cyan);
}

.floating-particles::before {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-particles::after {
    top: 70%;
    right: 15%;
    animation-delay: 2s;
}
*/

@keyframes simple-float {
    0%, 100% { 
        transform: translateY(0px) scale(1);
        opacity: 0.6;
    }
    50% { 
        transform: translateY(-20px) scale(1.2);
        opacity: 1;
    }
}

/* 神经网络背景动画 - 增强版 - 暂时注释 */
/*
.neural-network {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    animation: neural-flow 8s ease-in-out infinite;
    overflow: hidden;
}
*/

/* 添加神经网络连接线 - 暂时注释 */
/*
.neural-network::before,
.neural-network::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 200px;
    background: linear-gradient(180deg, transparent, #2563eb, transparent);
    animation: data-stream 3s ease-in-out infinite;
}

.neural-network::before {
    top: 10%;
    left: 25%;
    animation-delay: 0s;
    transform: rotate(45deg);
}

.neural-network::after {
    top: 60%;
    right: 30%;
    animation-delay: 1.5s;
    transform: rotate(-45deg);
}
*/

/* 移除原有的机器人动画，创建新的打电话机器人 */
/* 
.hero-background::after {
    content: '';
    position: absolute;
    top: 15%;
    right: 8%;
    width: 120px;
    height: 120px;
    background: transparent;
    z-index: 1;
}
*/

/* 创建机器人打电话动画容器 */
/*
.robot-calling {
    position: absolute;
    top: 12%;
    right: 8%;
    width: 140px;
    height: 140px;
    z-index: 2;
    pointer-events: none;
}
*/

/* 机器人头部 */
.robot-head {
    position: absolute;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    border-radius: 15px;
    top: 20px;
    left: 30px;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
    animation: robot-bob 3s ease-in-out infinite;
}

/* 机器人眼睛 */
.robot-head::before {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background: white;
    border-radius: 50%;
    top: 20px;
    left: 15px;
    box-shadow: 25px 0 white;
    animation: robot-blink 4s ease-in-out infinite;
}

/* 机器人嘴巴 */
.robot-head::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 8px;
    background: white;
    border-radius: 4px;
    top: 45px;
    left: 30px;
    animation: robot-talk 2s ease-in-out infinite;
}

/* 机器人身体 */
.robot-body {
    position: absolute;
    width: 60px;
    height: 40px;
    background: linear-gradient(135deg, #1d4ed8, #2563eb);
    border-radius: 8px;
    top: 80px;
    left: 40px;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.3);
}

/* 机器人手臂（左臂） */
.robot-arm-left {
    position: absolute;
    width: 8px;
    height: 25px;
    background: #2563eb;
    border-radius: 4px;
    top: 85px;
    left: 25px;
    transform-origin: top;
    animation: robot-wave 2.5s ease-in-out infinite;
}

/* 机器人手臂（右臂持电话） */
.robot-arm-right {
    position: absolute;
    width: 8px;
    height: 25px;
    background: #2563eb;
    border-radius: 4px;
    top: 85px;
    right: 25px;
    transform-origin: top;
    animation: robot-hold-phone 2s ease-in-out infinite;
}

/* 电话听筒 */
.phone-handset {
    position: absolute;
    width: 20px;
    height: 12px;
    background: #ffffff;
    border-radius: 6px;
    top: 10px;
    right: 15px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    animation: phone-move 2s ease-in-out infinite;
}

/* 电话线 */
.phone-handset::after {
    content: '';
    position: absolute;
    width: 2px;
    height: 15px;
    background: #666;
    border-radius: 1px;
    bottom: -15px;
    left: 9px;
    animation: phone-cord 2s ease-in-out infinite;
}

/* 通话信号波纹 */
.call-waves {
    position: absolute;
    top: 5px;
    right: 35px;
    width: 30px;
    height: 30px;
}

.call-wave {
    position: absolute;
    border: 2px solid #0ea5e9;
    border-radius: 50%;
    opacity: 0;
    animation: call-signal 2s ease-out infinite;
}

.call-wave:nth-child(1) {
    width: 10px;
    height: 10px;
    top: 10px;
    left: 10px;
    animation-delay: 0s;
}

.call-wave:nth-child(2) {
    width: 20px;
    height: 20px;
    top: 5px;
    left: 5px;
    animation-delay: 0.5s;
}

.call-wave:nth-child(3) {
    width: 30px;
    height: 30px;
    top: 0;
    left: 0;
    animation-delay: 1s;
}

/* 动画关键帧 */
@keyframes robot-bob {
    0%, 100% { 
        transform: translateY(0px) rotate(0deg); 
    }
    50% { 
        transform: translateY(-8px) rotate(2deg); 
    }
}

@keyframes robot-blink {
    0%, 90%, 100% { 
        transform: scaleY(1); 
    }
    95% { 
        transform: scaleY(0.1); 
    }
}

@keyframes robot-talk {
    0%, 100% { 
        transform: scaleY(1); 
    }
    50% { 
        transform: scaleY(0.6); 
    }
}

@keyframes robot-wave {
    0%, 100% { 
        transform: rotate(0deg); 
    }
    25% { 
        transform: rotate(-15deg); 
    }
    75% { 
        transform: rotate(15deg); 
    }
}

@keyframes robot-hold-phone {
    0%, 100% { 
        transform: rotate(-20deg); 
    }
    50% { 
        transform: rotate(-10deg); 
    }
}

@keyframes phone-move {
    0%, 100% { 
        transform: translateX(0px) rotate(-10deg); 
    }
    50% { 
        transform: translateX(-2px) rotate(-5deg); 
    }
}

@keyframes phone-cord {
    0%, 100% { 
        transform: rotate(0deg); 
    }
    50% { 
        transform: rotate(5deg); 
    }
}

@keyframes call-signal {
    0% { 
        transform: scale(0);
        opacity: 1; 
    }
    100% { 
        transform: scale(1);
        opacity: 0; 
    }
}

/* 创建科技感的几何图形 */
.tech-geometry {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.tech-geometry::before {
    content: '';
    position: absolute;
    top: 70%;
    left: 70%;
    width: 80px;
    height: 80px;
    border: 2px solid #0ea5e9;
    border-left: 2px solid transparent;
    border-radius: 50%;
    animation: tech-spin 4s linear infinite;
}

.tech-geometry::after {
    content: '';
    position: absolute;
    top: 25%;
    right: 25%;
    width: 60px;
    height: 60px;
    border: 2px solid #2563eb;
    border-top: 2px solid transparent;
    border-right: 2px solid transparent;
    animation: tech-spin-reverse 3s linear infinite;
    clip-path: polygon(0 0, 100% 0, 100% 50%, 50% 100%, 0 50%);
}

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

@keyframes tech-spin-reverse {
    from { transform: rotate(360deg); }
    to { transform: rotate(0deg); }
}

/* 添加数据流动线条 */
.data-lines {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.data-lines::before,
.data-lines::after {
    content: '';
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, #2563eb, #0ea5e9, transparent);
    animation: data-flow-horizontal 3s ease-in-out infinite;
}

.data-lines::before {
    top: 35%;
    left: 0;
    width: 40%;
    animation-delay: 0s;
}

.data-lines::after {
    bottom: 25%;
    right: 0;
    width: 35%;
    animation-delay: 1.5s;
}

@keyframes data-flow-horizontal {
    0% { opacity: 0; transform: translateX(-100%); }
    50% { opacity: 1; transform: translateX(0); }
    100% { opacity: 0; transform: translateX(100%); }
}

/* AI思维连接点 */
.ai-nodes {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.ai-nodes::before,
.ai-nodes::after {
    content: '';
    position: absolute;
    width: 6px;
    height: 6px;
    background: #0ea5e9;
    border-radius: 50%;
    box-shadow: 0 0 20px #0ea5e9;
    animation: node-pulse 2s ease-in-out infinite;
}

.ai-nodes::before {
    top: 40%;
    left: 15%;
    animation-delay: 0s;
}

.ai-nodes::after {
    top: 55%;
    right: 20%;
    animation-delay: 1s;
}

@keyframes node-pulse {
    0%, 100% { 
        transform: scale(1);
        opacity: 0.7;
    }
    50% { 
        transform: scale(1.5);
        opacity: 1;
    }
}

/* 更新hero区域以包含新的动画元素 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    /* 移除背景渐变，让视频完全显示 */
    /* background: linear-gradient(135deg, var(--background-white) 0%, var(--light-blue) 100%); */
}

/* 添加智能客服对话气泡动画 */
.chat-bubbles {
    position: absolute;
    top: 20%;
    right: 15%;
    pointer-events: none;
}

.chat-bubble {
    position: absolute;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid #2563eb;
    border-radius: 15px;
    padding: 8px 12px;
    font-size: 12px;
    color: #2563eb;
    animation: bubble-appear 4s ease-in-out infinite;
    opacity: 0;
}

.chat-bubble:nth-child(1) {
    top: 0;
    right: 20px;
    animation-delay: 0s;
}

.chat-bubble:nth-child(1)::after {
    content: "AI助手为您服务";
}

.chat-bubble:nth-child(2) {
    top: 40px;
    right: 0;
    animation-delay: 2s;
}

.chat-bubble:nth-child(2)::after {
    content: "智能营销解决方案";
}

@keyframes bubble-appear {
    0%, 90%, 100% { 
        opacity: 0;
        transform: translateY(10px) scale(0.8);
    }
    10%, 80% { 
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* 神经网络连接动画 */
.neural-connections {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.neural-connections::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 20%;
    width: 60%;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent, 
        #2563eb 20%, 
        #0ea5e9 40%, 
        #2563eb 60%, 
        transparent
    );
    animation: neural-pulse 3s ease-in-out infinite;
    transform: rotate(-15deg);
}

.neural-connections::after {
    content: '';
    position: absolute;
    top: 30%;
    left: 30%;
    width: 40%;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent, 
        #0ea5e9 30%, 
        #2563eb 70%, 
        transparent
    );
    animation: neural-pulse 3s ease-in-out infinite;
    animation-delay: 1.5s;
    transform: rotate(25deg);
}

@keyframes neural-pulse {
    0%, 100% { 
        opacity: 0.3;
        transform: rotate(-15deg) scaleX(0.5);
    }
    50% { 
        opacity: 1;
        transform: rotate(-15deg) scaleX(1);
    }
}

.hero-content {
    text-align: left;
    z-index: 20;
    max-width: 500px;
    position: relative;
    padding: 50px 40px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 32px rgba(37, 99, 235, 0.15);
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    color: var(--text-primary);
}

/* 移除typewriter动画效果 */
.typewriter {
    display: inline-block;
    /* 移除动画 */
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 0;
}

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 40px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: var(--background-white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: white;
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    margin-top: 40px;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    padding: 20px 25px;
    border-radius: 15px;
    border: 1px solid rgba(37, 99, 235, 0.2);
    box-shadow: 0 8px 32px rgba(37, 99, 235, 0.15);
    transition: all 0.3s ease;
    min-width: 120px;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-blue);
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--primary-blue);
    margin-bottom: 8px;
    text-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* 解决方案区块 */
.solutions {
    padding: 100px 0;
    background: var(--background-white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* 修改痛点卡片为单行显示 */
.pain-points {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.pain-point-card {
    background: var(--background-card);
    padding: 30px 20px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
}

.pain-point-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.1), transparent);
    transition: left 0.5s ease;
}

.pain-point-card:hover::before {
    left: 100%;
}

.pain-point-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary-blue);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
    color: white;
}

.pain-point-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.pain-point-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.solution-tag {
    display: inline-block;
    background: var(--gradient-accent);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* 产品服务区块 */
.products {
    padding: 100px 0;
    background: var(--background-blue-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.product-card {
    background: var(--background-card);
    padding: 40px;
    border-radius: 25px;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.1);
}

.ai-glow {
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.1);
}

.ai-glow:hover {
    box-shadow: 0 15px 40px rgba(37, 99, 235, 0.2);
    transform: translateY(-5px);
    border-color: var(--primary-blue);
}

.product-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.product-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: white;
}

.product-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.product-card p {
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 25px;
}

.feature-tag {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-blue);
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
}

.product-stats {
    display: flex;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
}

.stat {
    text-align: center;
}

.stat strong {
    display: block;
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.stat span {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* 增长策略区块 */
.growth-tactics {
    padding: 100px 0;
    background: var(--background-white);
}

.tactics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.tactic-card {
    background: var(--background-card);
    padding: 25px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
}

.tactic-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-card);
    border-color: var(--primary-blue);
}

.tactic-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 20px;
    color: white;
}

.tactic-card h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.tactic-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 技术优势区块 */
.advantages {
    padding: 100px 0;
    background: var(--background-blue-light);
}

.advantages-content {
    margin-top: 60px;
}

.advantage-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.advantage-item.reverse {
    direction: rtl;
}

.advantage-item.reverse > * {
    direction: ltr;
}

.advantage-visual {
    height: 300px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* AI电路动画 */
.ai-circuit {
    width: 200px;
    height: 200px;
    border: 3px solid var(--primary-blue);
    border-radius: 50%;
    position: relative;
    animation: circuit-spin 3s linear infinite;
}

.ai-circuit::before,
.ai-circuit::after {
    content: '';
    position: absolute;
    width: 100px;
    height: 100px;
    border: 2px solid var(--accent-cyan);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: circuit-pulse 2s ease-in-out infinite;
}

.ai-circuit::after {
    width: 50px;
    height: 50px;
    border-color: var(--bright-blue);
    animation-delay: 1s;
}

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

@keyframes circuit-pulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

/* 数据流动画 */
.data-flow {
    width: 250px;
    height: 150px;
    position: relative;
    background: linear-gradient(90deg, transparent, var(--primary-blue), transparent);
    border-radius: 10px;
    animation: data-flow 2s ease-in-out infinite;
}

@keyframes data-flow {
    0% { transform: translateX(-50px); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateX(50px); opacity: 0; }
}

/* 自动化齿轮动画 */
.automation-gears {
    position: relative;
    width: 200px;
    height: 200px;
}

.automation-gears::before,
.automation-gears::after {
    content: '⚙️';
    position: absolute;
    font-size: 60px;
    animation: gear-rotate 3s linear infinite;
}

.automation-gears::before {
    top: 0;
    left: 0;
    color: var(--primary-blue);
}

.automation-gears::after {
    bottom: 0;
    right: 0;
    animation-direction: reverse;
    color: var(--accent-cyan);
}

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

.advantage-text h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.advantage-text p {
    color: var(--text-secondary);
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.advantage-text ul {
    list-style: none;
}

.advantage-text li {
    color: var(--text-secondary);
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.advantage-text li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
}

/* 成功指标区块 */
.success-metrics {
    padding: 80px 0;
    background: var(--background-white);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.metric-card {
    background: var(--background-card);
    padding: 30px;
    border-radius: 20px;
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.1);
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.metric-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
    color: white;
}

.metric-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 10px;
}

.metric-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.metric-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

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

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.contact-info p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--background-card);
    border-radius: 15px;
    border: 1px solid var(--border-light);
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.08);
}

.contact-method:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-card);
}

.contact-method i {
    font-size: 24px;
    color: var(--primary-blue);
}

.contact-method h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.contact-method p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-form {
    background: var(--background-card);
    padding: 40px;
    border-radius: 25px;
    border: 1px solid var(--border-light);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.1);
}

.demo-form h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    text-align: center;
    color: var(--text-primary);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background: var(--background-white);
    border: 1px solid var(--border-light);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.2);
}

.form-group textarea {
    height: 100px;
    resize: vertical;
}

/* 页脚 */
.footer {
    background: linear-gradient(180deg, var(--text-primary), #0f172a);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-light);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-light);
}

.footer-logo i {
    color: var(--accent-cyan);
}

.footer-section p {
    color: #cbd5e1;
    margin-bottom: 20px;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.footer-section h4 {
    margin-bottom: 20px;
    color: var(--text-light);
}

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

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

.footer-section a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--accent-cyan);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #334155;
    color: #cbd5e1;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .pain-points {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        justify-content: center;
        padding: 20px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 0 20px;
    }
    
    .hero-content-left {
        order: 1;
        padding: 30px 20px;
    }
    
    .hero-auth-section {
        order: 2;
    }
    
    .auth-container {
        max-width: 100%;
    }
    
    .hero-content-left .hero-title {
        font-size: 2rem;
        text-align: center;
    }
    
    .hero-content-left .hero-subtitle {
        font-size: 1rem;
        text-align: center;
    }
    
    .hero-content-left .hero-buttons {
        justify-content: center;
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .hero-content-left .hero-stats {
        justify-content: center;
        gap: 10px;
        flex-wrap: nowrap;
    }
    
    .hero-content-left .stat-item {
        flex: 1;
        width: auto;
        min-width: 80px;
        max-width: 120px;
        padding: 12px 8px;
    }
    
    .hero-content-left .stat-number {
        font-size: 2rem;
    }
    
    .hero-content-left .stat-label {
        font-size: 0.85rem;
    }
    
    .pain-points {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .advantage-item {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .tactics-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    /* 移动端视频优化 */
    #hero-video {
        opacity: 0.6;
    }
    
    .video-overlay {
        background: linear-gradient(
            135deg, 
            rgba(255, 255, 255, 0.6) 0%, 
            rgba(37, 99, 235, 0.2) 50%, 
            rgba(14, 165, 233, 0.2) 100%
        );
    }
    
    .hero-mask {
        background: linear-gradient(
            135deg,
            rgba(255, 255, 255, 0.9) 0%,
            rgba(255, 255, 255, 0.8) 50%,
            rgba(255, 255, 255, 0.75) 100%
        );
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .pain-points {
        grid-template-columns: 1fr;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) scale(1); opacity: 0.7; }
    50% { transform: translateY(-20px) scale(1.2); opacity: 1; }
}

@keyframes neural-flow {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(180deg); }
}

@keyframes data-stream {
    0% { opacity: 0; transform: rotate(45deg) scaleY(0); }
    50% { opacity: 1; transform: rotate(45deg) scaleY(1); }
    100% { opacity: 0; transform: rotate(45deg) scaleY(0); }
}

/* 新增白色半透明遮罩层 */
.hero-mask {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.85) 0%,
        rgba(255, 255, 255, 0.75) 50%,
        rgba(255, 255, 255, 0.65) 100%
    );
    z-index: 3;
}

/* 修改hero容器布局 - 给登录区域更多空间 */
.hero-container {
    display: grid;
    grid-template-columns: 1fr 480px;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    align-items: center;
    position: relative;
    z-index: 20;
}

/* 左侧内容区域 */
.hero-content-left {
    padding: 40px;
    /* 移除背景框效果 */
    /* background: rgba(255, 255, 255, 0.95); */
    /* backdrop-filter: blur(20px); */
    /* border-radius: 25px; */
    /* border: 1px solid rgba(37, 99, 235, 0.15); */
    /* box-shadow: 0 20px 60px rgba(37, 99, 235, 0.1); */
}

/* 右侧登录注册功能区 */
.hero-auth-section {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding-top: 80px;
    padding-right: 0px;
}

.auth-container {
    width: 100%;
    max-width: 480px;
    background: #f5f7fa;
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 25px 80px rgba(37, 99, 235, 0.15);
    /* 添加边框效果 */
    border: 1px solid rgba(26, 115, 232, 0.1);
}

/* 登录表单容器 */
.auth-form {
    padding: 60px 40px 40px;
    background: #f5f7fa;
    position: relative;
    z-index: 1;
}

/* 登录模式切换 */
.login-header {
    margin-bottom: 30px;
}

.login-mode-switch {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    font-size: 28px;
    font-weight: 300;
    color: #1a73e8;
}

.mode-btn {
    background: none;
    border: none;
    color: #9aa0a6;
    font-size: 28px;
    font-weight: 300;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 8px 15px;
    border-radius: 8px;
    position: relative;
}

.mode-btn.active {
    color: #1a73e8;
    background: rgba(26, 115, 232, 0.08);
}

.mode-btn:hover {
    color: #1a73e8;
    background: rgba(26, 115, 232, 0.05);
}

.mode-divider {
    color: #9aa0a6;
    font-size: 28px;
    font-weight: 300;
    margin: 0 5px;
}

/* 登录分割线 */
.login-divider {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.login-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #e8eaed;
}

.login-divider span {
    background: #f5f7fa;
    color: #9aa0a6;
    padding: 0 20px;
    font-size: 14px;
    position: relative;
    z-index: 1;
    font-weight: 400;
}

/* 表单组 */
.form-group {
    margin-bottom: 20px;
    position: relative;
}

.form-group input {
    width: 100%;
    padding: 18px 20px;
    background: #e8f0fe;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    color: #202124;
    transition: all 0.3s ease;
    box-sizing: border-box;
    font-family: inherit;
}

.form-group input:focus {
    outline: none;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(26, 115, 232, 0.2);
    border: 2px solid #1a73e8;
}

.form-group input::placeholder {
    color: #5f6368;
    font-weight: 400;
}

/* 密码输入框特殊样式 */
.password-group {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #5f6368;
    cursor: pointer;
    font-size: 16px;
    transition: color 0.3s ease;
    padding: 5px;
}

.password-toggle:hover {
    color: #1a73e8;
}

/* 验证码输入框 */
.verification-input {
    display: flex;
    gap: 12px;
}

.verification-input input {
    flex: 1;
}

.get-code-btn {
    background: #1a73e8;
    color: white;
    border: none;
    padding: 18px 24px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    min-width: 120px;
}

.get-code-btn:hover:not(:disabled) {
    background: #1557b0;
}

.get-code-btn:disabled {
    background: #9aa0a6;
    cursor: not-allowed;
}

/* 表单选项 */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    font-size: 14px;
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: #5f6368;
}

.checkbox-wrapper input {
    width: auto;
    margin: 0;
    margin-right: 8px;
    accent-color: #1a73e8;
}

.checkbox-text {
    user-select: none;
    font-weight: 400;
}

.forgot-link {
    color: #1a73e8;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.forgot-link:hover {
    color: #1557b0;
    text-decoration: underline;
}

/* 登录按钮 */
.login-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #4285f4, #5a9cff);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 25px;
    box-shadow: 0 4px 15px rgba(66, 133, 244, 0.3);
    letter-spacing: 2px;
}

.login-btn:hover {
    background: linear-gradient(135deg, #3367d6, #4285f4);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(66, 133, 244, 0.4);
}

/* 注册链接 */
.register-section {
    text-align: center;
    margin-bottom: 25px;
}

.register-link {
    color: #1a73e8;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.register-link:hover {
    color: #1557b0;
    text-decoration: underline;
}

/* 服务条款 */
.terms-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e8eaed;
}

.terms-checkbox {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    font-size: 12px;
    color: #5f6368;
    line-height: 1.4;
}

.terms-checkbox input {
    width: auto;
    margin: 0;
    margin-right: 8px;
    margin-top: 2px;
    flex-shrink: 0;
    accent-color: #1a73e8;
}

.terms-text {
    user-select: none;
    font-weight: 400;
}

/* 移除旧的样式 */
.wechat-qr-corner,
.qr-icon-wrapper,
.qr-tooltip,
.register-link-section,
.register-link-btn,
.auth-btn {
    display: none;
}