/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    max-width: 100%;
}

/* 确保所有区块不会导致额外的滚动高度 */
section {
    width: 100%;
    max-width: 100vw;
    overflow: hidden;
    position: relative;
}

html {
    min-height: 100vh;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: var(--qq-text-primary);
    background-color: var(--qq-bg-secondary);
    display: flex;
    flex-direction: column;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
    position: relative;
}

/* 确保浮动背景元素不会导致额外的滚动高度 */
.banner {
    position: relative;
    overflow: hidden;
}

.floating-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}



/* QQ主题样式 */
.qq-theme {
    --primary-color: var(--qq-primary);
    --text-color: var(--qq-text-primary);
}

/* 主要内容区域 - 确保填充剩余空间 */
main {
    flex: 1 0 auto;
    width: 100%;
    position: relative;
}

/* 清除默认样式并设置容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--qq-space-md);
}

/* 通用按钮样式 */
.qq-primary-btn {
    background-color: var(--qq-primary);
    color: white;
    border: none;
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--qq-border-radius-pill);
    cursor: pointer;
    transition: all var(--qq-transition-normal);
    position: relative;
    overflow: hidden;
}

.qq-primary-btn:hover {
    background-color: var(--qq-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--qq-glow-primary);
}

.qq-primary-btn:active {
    transform: translateY(0);
}

.qq-secondary-btn {
    background-color: transparent;
    color: var(--qq-primary);
    border: 1px solid var(--qq-primary);
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--qq-border-radius-pill);
    cursor: pointer;
    transition: all var(--qq-transition-normal);
}

.qq-secondary-btn:hover {
    background-color: var(--qq-primary-light);
}

/* QQ图标样式 */
.qq-icon {
    width: 40px;
    height: 40px;
    background-color: var(--qq-primary);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.qq-icon::before,
.qq-icon::after {
    content: '';
    position: absolute;
    background-color: white;
    border-radius: 50%;
}

.qq-icon::before {
    width: 20px;
    height: 20px;
    top: 8px;
    left: 8px;
}

.qq-icon::after {
    width: 12px;
    height: 12px;
    top: 14px;
    left: 14px;
    background-color: var(--qq-primary);
}

/* 功能图标 */
.qq-icon-touch::before,
.qq-icon-car::before,
.qq-icon-water::before,
.qq-icon-location::before,
.qq-icon-phone::before,
.qq-icon-time::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

/* 全局动画变量 */
:root {
  /* QQ主题色彩系统 */
  --qq-primary: #12B7F5; /* 腾讯蓝 */
  --qq-primary-dark: #0D9BD7; /* 深蓝色 */
  --qq-primary-light: #E6F7FF; /* 浅蓝色背景 */
  --qq-secondary: #FFCC00; /* 黄色辅助色 */
  --qq-success: #52C41A; /* 成功绿 */
  --qq-warning: #FAAD14; /* 警告黄 */
  --qq-danger: #F5222D; /* 错误红 */
  --qq-text-primary: #333333; /* 主要文本色 */
  --qq-text-secondary: #666666; /* 次要文本色 */
  --qq-text-tertiary: #999999; /* 辅助文本色 */
  --qq-bg-primary: #FFFFFF; /* 主背景色 */
  --qq-bg-secondary: #F7F7F7; /* 次要背景色 */
  --qq-bg-tertiary: #F0F0F0; /* 辅助背景色 */
  --qq-border: #E0E0E0; /* 边框色 */
  
  /* 尺寸变量 */
  --qq-border-radius: 8px;
  --qq-border-radius-large: 16px;
  --qq-border-radius-pill: 9999px;
  
  /* 间距变量 */
  --qq-space-xs: 4px;
  --qq-space-sm: 8px;
  --qq-space-md: 16px;
  --qq-space-lg: 24px;
  --qq-space-xl: 32px;
  --qq-space-xxl: 48px;
  
  /* 阴影变量 */
  --qq-shadow-light: 0 2px 8px rgba(0, 0, 0, 0.08);
  --qq-shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.12);
  --qq-shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.16);
  
  /* 过渡变量 */
  --qq-transition-fast: 0.15s ease;
  --qq-transition-normal: 0.3s ease;
  --qq-transition-slow: 0.5s ease;
  
  /* 光效变量 */
  --qq-glow-primary: rgba(18, 183, 245, 0.3);
  --qq-glow-secondary: rgba(255, 204, 0, 0.3);
  
  /* 动画时间变量 */
  --animation-duration: 0.6s;
  --animation-delay: 0.1s;
  --animation-fast: 0.2s;
  --animation-normal: 0.3s;
  --animation-slow: 0.5s;
  
  /* 原有变量兼容 */
  --transition-cubic: cubic-bezier(0.25, 0.8, 0.25, 1);
  --hover-scale: 1.03;
  --card-shadow: var(--qq-shadow-light);
  --card-shadow-hover: var(--qq-shadow-medium);
}

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

/* QQ头部样式 */
.qq-header {
    background-color: var(--qq-bg-primary);
    color: var(--qq-text-primary);
    padding: var(--qq-space-md) 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.qq-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.qq-logo {
    display: flex;
    align-items: center;
    gap: var(--qq-space-md);
}

.qq-logo h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--qq-primary);
    margin: 0;
}

.qq-nav {
    display: flex;
    align-items: center;
    gap: var(--qq-space-xl);
}

.qq-nav ul {
    display: flex;
    list-style: none;
    gap: var(--qq-space-lg);
    margin: 0;
}

.qq-nav ul li {
    margin: 0;
}

.nav-item {
    color: var(--qq-text-primary);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: var(--qq-space-sm) var(--qq-space-md);
    border-radius: var(--qq-border-radius-pill);
    transition: all var(--qq-transition-fast);
    position: relative;
}

.nav-item:hover,
.nav-item.active {
    color: var(--qq-primary);
    background-color: var(--qq-primary-light);
}

.qq-download-btn {
    background-color: var(--qq-primary);
    color: white;
    border: none;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--qq-border-radius-pill);
    cursor: pointer;
    transition: all var(--qq-transition-normal);
}

.qq-download-btn:hover {
    background-color: var(--qq-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--qq-glow-primary);
}

/* QQ横幅样式 */
.qq-banner {
    position: relative;
    padding: var(--qq-space-xxl) 0;
    background-color: var(--qq-bg-primary);
    overflow: hidden;
    width: 100%;
    max-width: 100vw;
}

.qq-banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--qq-primary-light), white);
    z-index: 0;
}

.qq-banner .container {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.qq-banner-content {
    max-width: 50%;
    /* animation: qqSlideUp 0.6s ease-out; */
}

.qq-banner-title {
    font-size: 48px;
    font-weight: 700;
    color: var(--qq-text-primary);
    margin-bottom: var(--qq-space-lg);
    line-height: 1.3;
}

.qq-banner-title span {
    color: var(--qq-primary);
}

.qq-banner-desc {
    font-size: 18px;
    color: var(--qq-text-secondary);
    margin-bottom: var(--qq-space-xl);
    line-height: 1.8;
}

.qq-banner-actions {
    display: flex;
    gap: var(--qq-space-lg);
}

.qq-banner-image {
    width: 45%;
    height: 400px;
    background-color: var(--qq-primary-light);
    border-radius: var(--qq-border-radius-large);
    /* animation: qqFadeIn 0.8s ease-out 0.2s both; */
    position: relative;
    overflow: hidden;
}

.qq-banner-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="%2312B7F5" fill-opacity="0.1"/></svg>');
    background-size: cover;
}

/* QQ特性区块样式 */
.qq-features {
    padding: var(--qq-space-xxl) 0;
    background-color: var(--qq-bg-secondary);
}

.qq-features .container {
    text-align: center;
}

.qq-section-title {
    font-size: 36px;
    margin-bottom: var(--qq-space-md);
    font-weight: 700;
    color: var(--qq-text-primary);
    position: relative;
    display: inline-block;
}

.qq-section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background-color: var(--qq-primary);
    border-radius: var(--qq-border-radius-pill);
}

.qq-section-subtitle {
    font-size: 18px;
    margin-bottom: var(--qq-space-xxl);
    color: var(--qq-text-secondary);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.qq-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--qq-space-lg);
    margin-top: var(--qq-space-xl);
}

.qq-feature-card {
    background-color: var(--qq-bg-primary);
    padding: var(--qq-space-xl);
    border-radius: var(--qq-border-radius-large);
    box-shadow: var(--qq-shadow-light);
    transition: all var(--qq-transition-normal);
    border: 1px solid var(--qq-border);
    position: relative;
    overflow: hidden;
}

.qq-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--qq-primary);
    transform: scaleX(0);
    transition: transform var(--qq-transition-normal);
}

.qq-feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--qq-shadow-medium);
    border-color: var(--qq-primary-light);
}

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

.qq-feature-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--qq-primary-light);
    border-radius: var(--qq-border-radius-large);
    margin: 0 auto var(--qq-space-lg);
    transition: all var(--qq-transition-normal);
}

.qq-feature-icon svg {
    width: 40px;
    height: 40px;
    fill: var(--qq-primary);
    transition: transform var(--qq-transition-normal);
}

.qq-feature-card:hover .qq-feature-icon {
    background-color: var(--qq-primary);
}

.qq-feature-card:hover .qq-feature-icon svg {
    fill: white;
    transform: scale(1.1);
}

.qq-feature-title {
    font-size: 20px;
    margin-bottom: var(--qq-space-md);
    font-weight: 600;
    color: var(--qq-text-primary);
}

.qq-feature-desc {
    font-size: 16px;
    color: var(--qq-text-secondary);
    line-height: 1.8;
}

/* QQ产品介绍样式 */
.qq-about {
    padding: var(--qq-space-xxl) 0;
    background-color: var(--qq-bg-primary);
    position: relative;
}

.qq-about .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--qq-space-xxl);
}

.qq-about-image {
    width: 45%;
    /* animation: qqFadeIn 0.8s ease-out; */
    position: relative;
}

.qq-about-image::after {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    bottom: -20px;
    left: -20px;
    border: 2px dashed var(--qq-primary-light);
    border-radius: var(--qq-border-radius-large);
    z-index: -1;
}

.qq-about-content {
    width: 55%;
    /* animation: qqSlideLeft 0.8s ease-out; */
}

.qq-about-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--qq-text-primary);
    margin-bottom: var(--qq-space-lg);
    line-height: 1.3;
}

.qq-about-desc {
    font-size: 18px;
    color: var(--qq-text-secondary);
    margin-bottom: var(--qq-space-xl);
    line-height: 1.8;
}

.qq-about-highlights {
    margin-bottom: var(--qq-space-xl);
}

.qq-highlight-item {
    display: flex;
    align-items: flex-start;
    gap: var(--qq-space-md);
    margin-bottom: var(--qq-space-lg);
}

.qq-highlight-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    margin-top: 3px;
}

.qq-highlight-icon svg {
    width: 100%;
    height: 100%;
    fill: var(--qq-primary);
}

.qq-highlight-text {
    font-size: 16px;
    color: var(--qq-text-primary);
    line-height: 1.6;
}

/* QQ服务功能样式 */
.qq-services {
    padding: var(--qq-space-xxl) 0;
    background-color: var(--qq-bg-secondary);
}

.qq-services .container {
    text-align: center;
}

.qq-services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--qq-space-lg);
    margin-top: var(--qq-space-xl);
}

.qq-service-item {
    background-color: var(--qq-bg-primary);
    padding: var(--qq-space-xl);
    border-radius: var(--qq-border-radius-large);
    transition: all var(--qq-transition-normal);
    border: 1px solid var(--qq-border);
    position: relative;
    overflow: hidden;
}

.qq-service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--qq-primary);
}

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

.qq-service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--qq-primary-light);
    border-radius: 50%;
    margin: 0 auto var(--qq-space-lg);
}

.qq-service-icon svg {
    width: 30px;
    height: 30px;
    fill: var(--qq-primary);
}

.qq-service-title {
    font-size: 18px;
    margin-bottom: var(--qq-space-md);
    font-weight: 600;
    color: var(--qq-text-primary);
}

.qq-service-desc {
    font-size: 16px;
    color: var(--qq-text-secondary);
    line-height: 1.8;
}

/* QQ联系我们样式 */
.qq-contact {
    padding: var(--qq-space-xxl) 0;
    background-color: var(--qq-bg-primary);
}

.qq-contact .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.qq-contact-form {
    max-width: 600px;
    width: 100%;
    background-color: var(--qq-bg-primary);
    padding: var(--qq-space-xl);
    border-radius: var(--qq-border-radius-large);
    box-shadow: var(--qq-shadow-light);
    border: 1px solid var(--qq-border);
    margin-top: var(--qq-space-xl);
}

.qq-form-group {
    margin-bottom: var(--qq-space-lg);
}

.qq-form-label {
    display: block;
    margin-bottom: var(--qq-space-sm);
    font-weight: 500;
    color: var(--qq-text-primary);
    text-align: left;
}

.qq-form-input,
.qq-form-textarea {
    width: 100%;
    padding: var(--qq-space-md);
    border: 1px solid var(--qq-border);
    border-radius: var(--qq-border-radius);
    font-size: 16px;
    transition: all var(--qq-transition-normal);
    background-color: var(--qq-bg-primary);
}

.qq-form-input:focus,
.qq-form-textarea:focus {
    outline: none;
    border-color: var(--qq-primary);
    box-shadow: 0 0 0 3px var(--qq-primary-light);
}

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

.qq-form-btn {
    width: 100%;
    padding: var(--qq-space-md);
    background-color: var(--qq-primary);
    color: white;
    border: none;
    border-radius: var(--qq-border-radius);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--qq-transition-normal);
}

.qq-form-btn:hover {
    background-color: var(--qq-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--qq-glow-primary);
}

/* QQ页脚样式 */
.qq-footer {
    background-color: #111;
    color: white;
    padding: var(--qq-space-lg) 0;
    margin: 0;
    width: 100%;
    position: relative;
    flex-shrink: 0;
    overflow: hidden;
}

.qq-footer .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--qq-space-lg); /* 减小间距 */
}

.qq-footer-column {
    display: flex;
    flex-direction: column;
}

.qq-footer-logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--qq-primary);
    margin-bottom: var(--qq-space-lg);
}

.qq-footer-desc {
    font-size: 16px;
    color: #999;
    margin-bottom: var(--qq-space-lg);
    line-height: 1.6;
}

.qq-footer-title {
    font-size: 18px;
    font-weight: 600;
    color: white;
    margin-bottom: var(--qq-space-lg);
}

.qq-footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--qq-space-md);
}

.qq-footer-link {
    color: #999;
    text-decoration: none;
    transition: color var(--qq-transition-fast);
}

.qq-footer-link:hover {
    color: var(--qq-primary);
}

.qq-footer-bottom {
    margin-top: var(--qq-space-md);
    padding-top: var(--qq-space-md);
    border-top: 1px solid #333;
    text-align: center;
    padding-bottom: var(--qq-space-sm); /* 添加少量底部内边距避免紧贴 */
}

.qq-footer-copyright {
    font-size: 14px;
    color: #999;
}

/* QQ动画效果 - 已禁用 */
/*
@keyframes qqSlideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes qqFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 24px;
    /* animation: logoPopIn 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.3s both; */
}

/* @keyframes logoPopIn {
    0% {
        transform: scale(0.5);
        opacity: 0;
    }
    70% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
} */

.nav ul {
    display: flex;
    list-style: none;
}

.nav ul li {
    margin-left: 20px;
}

.nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s var(--transition-cubic);
    position: relative;
    padding: 8px 12px;
    border-radius: 6px;
    display: inline-block;
    overflow: hidden;
}

.nav ul li a:hover {
    color: #0099ff;
    background-color: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #0099ff;
    transition: width 0.3s var(--transition-cubic);
}

.nav ul li a:hover::after {
    width: 100%;
}

/* 横幅样式 */
.banner {
    background: linear-gradient(135deg, #0099ff, #0066cc);
    color: white;
    text-align: center;
    padding: 120px 0;
    position: relative;
    overflow: hidden;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
    transform: rotate(30deg);
    animation: shine 4s infinite;
}

@keyframes shine {
    0% {
        transform: rotate(30deg) translate(-10%, -10%);
    }
    50% {
        transform: rotate(30deg) translate(10%, 10%);
    }
    100% {
        transform: rotate(30deg) translate(-10%, -10%);
    }
}

.banner h2 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    animation: textPopIn 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.5s both;
}

@keyframes textPopIn {
    0% {
        transform: scale(0.5) translateY(50px);
        opacity: 0;
    }
    70% {
        transform: scale(1.05) translateY(-10px);
    }
    100% {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.banner p {
    font-size: 22px;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: textFadeIn 1s ease-out 0.8s both;
}

@keyframes textFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cta-button {
    background: linear-gradient(45deg, #ffeb3b, #ff9800);
    color: #0099ff;
    border: none;
    padding: 16px 40px;
    font-size: 20px;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.4s var(--transition-cubic);
    box-shadow: 0 10px 25px rgba(255, 152, 0, 0.4);
    position: relative;
    overflow: hidden;
    animation: buttonAppear 1s ease-out 1.2s both;
    will-change: transform, box-shadow;
}

.cta-button.clicked {
    transform: scale(0.95);
    box-shadow: 0 5px 15px rgba(255, 152, 0, 0.3);
}

.cta-button.success {
    animation: successPulse 0.6s ease-out;
}

@keyframes successPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: scale(0);
    animation: ripple 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple {
    0% {
        transform: scale(0);
        opacity: 0.7;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

.cta-button:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 30px rgba(255, 152, 0, 0.6);
}

.cta-button:active {
    transform: translateY(0) scale(0.95);
}

.cta-button::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -60%;
    width: 20px;
    height: 200%;
    background: rgba(255, 255, 255, 0.5);
    transform: rotate(30deg);
    transition: all 0.6s;
}

.cta-button:hover::after {
    left: 120%;
}

@keyframes buttonAppear {
    0% {
        transform: scale(0.3) translateY(50px);
        opacity: 0;
    }
    70% {
        transform: scale(1.05) translateY(-10px);
    }
    100% {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

/* 产品特点样式 */
.features {
    padding: 100px 0;
    background-color: #f8f9fa;
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%230099ff' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.features h2 {
    text-align: center;
    font-size: 40px;
    margin-bottom: 70px;
    color: #0099ff;
    position: relative;
    animation: titleEntrance 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.3s both;
}

@keyframes titleEntrance {
    0% {
        transform: translateY(-30px) skewX(-10deg);
        opacity: 0;
    }
    100% {
        transform: translateY(0) skewX(0);
        opacity: 1;
    }
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature-item {
    text-align: center;
    padding: 40px 30px;
    background: white;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    transition: all 0.5s var(--transition-cubic);
    position: relative;
    overflow: hidden;
    animation: cardEntrance 0.8s ease-out both;
    will-change: transform, box-shadow;
    cursor: pointer;
}

.feature-item:nth-child(1) { animation-delay: 0.2s; }
.feature-item:nth-child(2) { animation-delay: 0.4s; }
.feature-item:nth-child(3) { animation-delay: 0.6s; }

@keyframes cardEntrance {
    0% {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.feature-item:hover {
    transform: translateY(-15px) scale(var(--hover-scale));
    box-shadow: var(--card-shadow-hover);
    z-index: 10;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #0099ff, #0066cc);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

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

.feature-icon {
    font-size: 60px;
    margin-bottom: 25px;
    transition: transform 0.5s ease;
    position: relative;
    display: inline-block;
}

.feature-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(0, 153, 255, 0.1);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.6s ease;
}

.feature-item:hover .feature-icon::after {
    width: 150px;
    height: 150px;
    opacity: 0;
}

.feature-item:hover .feature-icon {
    transform: scale(1.2) rotate(10deg);
}

.feature-item h3 {
    font-size: 26px;
    margin-bottom: 20px;
    color: #0099ff;
    transition: all 0.3s ease;
}

.feature-item:hover h3 {
    color: #ff6600;
    transform: scale(1.05);
}

.feature-item p {
    font-size: 18px;
    color: #666;
    line-height: 1.6;
}

/* 产品介绍样式 */
.about {
    padding: 100px 0;
    text-align: center;
    background-color: white;
    position: relative;
}

.about::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(90deg, #0099ff, #ffeb3b);
    animation: gradientFlow 3s ease-in-out infinite alternate;
}

@keyframes gradientFlow {
    0% {
        background: linear-gradient(90deg, #0099ff, #ffeb3b);
    }
    100% {
        background: linear-gradient(90deg, #ffeb3b, #0099ff);
    }
}

.about h2 {
    font-size: 40px;
    margin-bottom: 40px;
    color: #0099ff;
    animation: titleEntrance 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.2s both;
}

.about p {
    font-size: 20px;
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
    color: #444;
    animation: textReveal 1.2s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.5s both;
}

@keyframes textReveal {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 功能特点样式 */
.services {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8f9fa, #eef2f7);
}

.services h2 {
    text-align: center;
    font-size: 40px;
    margin-bottom: 70px;
    color: #0099ff;
    animation: titleEntrance 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.2s both;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-item {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    text-align: center;
    transition: all 0.4s var(--transition-cubic);
    position: relative;
    overflow: hidden;
    animation: serviceEntrance 0.8s ease-out both;
    will-change: transform, box-shadow;
}

.service-item:nth-child(1) { animation-delay: 0.1s; }
.service-item:nth-child(2) { animation-delay: 0.2s; }
.service-item:nth-child(3) { animation-delay: 0.3s; }
.service-item:nth-child(4) { animation-delay: 0.4s; }
.service-item:nth-child(5) { animation-delay: 0.5s; }
.service-item:nth-child(6) { animation-delay: 0.6s; }

@keyframes serviceEntrance {
    0% {
        opacity: 0;
        transform: translateX(-50px) rotate(-5deg);
    }
    100% {
        opacity: 1;
        transform: translateX(0) rotate(0);
    }
}

.service-item:hover {
    transform: translateY(-15px) scale(var(--hover-scale));
    box-shadow: var(--card-shadow-hover);
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #ff9800, #ffeb3b);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

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

.service-item h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #0099ff;
    transition: all 0.3s ease;
}

.service-item:hover h3 {
    color: #ff6600;
    transform: scale(1.1);
}

.service-item p {
    font-size: 18px;
    color: #666;
    margin-bottom: 15px;
}

/* 联系我们样式 */
.contact {
    padding: 100px 0;
    background: white;
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(90deg, #ffeb3b, #0099ff);
    animation: gradientFlowReverse 3s ease-in-out infinite alternate;
}

@keyframes gradientFlowReverse {
    0% {
        background: linear-gradient(90deg, #ffeb3b, #0099ff);
    }
    100% {
        background: linear-gradient(90deg, #0099ff, #ffeb3b);
    }
}

.contact h2 {
    text-align: center;
    font-size: 40px;
    margin-bottom: 70px;
    color: #0099ff;
    animation: titleEntrance 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) 0.2s both;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.info-item {
    text-align: center;
    padding: 40px 30px;
    background: #f8f9fa;
    border-radius: 15px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    animation: infoEntrance 0.8s ease-out both;
}

.info-item:nth-child(1) { animation-delay: 0.2s; }
.info-item:nth-child(2) { animation-delay: 0.4s; }
.info-item:nth-child(3) { animation-delay: 0.6s; }

@keyframes infoEntrance {
    0% {
        opacity: 0;
        transform: translateY(50px) rotateX(45deg);
    }
    100% {
        opacity: 1;
        transform: translateY(0) rotateX(0);
    }
}

.info-item:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 15px 30px rgba(0, 153, 255, 0.2);
}

.info-item h3 {
    font-size: 26px;
    margin-bottom: 20px;
    color: #0099ff;
    transition: all 0.3s ease;
}

.info-item:hover h3 {
    color: #ff6600;
    transform: scale(1.1);
}

.info-item p {
    font-size: 20px;
    color: #555;
    font-weight: 500;
}

/* 页脚样式 */
.footer {
    background: linear-gradient(135deg, #333, #111);
    color: white;
    text-align: center;
    padding: 30px 0;
    animation: footerAppear 1s ease-out 0.5s both;
}

@keyframes footerAppear {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header .container {
        flex-direction: column;
    }
    
    .nav ul {
        margin-top: 15px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav ul li {
        margin: 5px 10px;
    }
    
    .banner {
        padding: 80px 0;
    }
    
    .banner h2 {
        font-size: 36px;
    }
    
    .banner p {
        font-size: 18px;
    }
    
    .feature-grid,
    .service-grid,
    .contact-info {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .features,
    .services,
    .about,
    .contact {
        padding: 70px 0;
    }
    
    .features h2,
    .services h2,
    .about h2,
    .contact h2 {
        font-size: 32px;
    }
    
    .service-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-item,
    .service-item,
    .info-item {
        padding: 30px 20px;
    }
    
    .feature-icon {
        font-size: 48px;
    }
    
    .feature-item h3,
    .service-item h3,
    .info-item h3 {
        font-size: 22px;
    }
}

@media screen and (max-width: 480px) {
    .logo h1 {
        font-size: 20px;
    }
    
    .nav ul li {
        margin: 5px;
    }
    
    .nav ul li a {
        font-size: 14px;
    }
    
    .banner {
        padding: 60px 0;
    }
    
    .banner h2 {
        font-size: 28px;
    }
    
    .banner p {
        font-size: 16px;
    }
    
    .cta-button {
        padding: 12px 30px;
        font-size: 18px;
    }
    
    .feature-item,
    .service-item,
    .info-item {
        padding: 25px 15px;
    }
    
    .feature-icon {
        font-size: 36px;
    }
    
    .feature-item h3,
    .service-item h3,
    .info-item h3 {
        font-size: 20px;
    }
    
    .about p,
    .info-item p {
        font-size: 18px;
    }
    
    .service-grid {
        grid-template-columns: 1fr;
    }
}

/* 动画类 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease-out, transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 洗车机工作状态动画 */
.feature-item.active {
    animation: machineWork 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes machineWork {
    0% {
        transform: scale(1);
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }
    30% {
        transform: scale(1.05) rotate(2deg);
        box-shadow: 0 20px 40px rgba(0, 153, 255, 0.4);
    }
    60% {
        transform: scale(1.08) rotate(-2deg);
        box-shadow: 0 30px 50px rgba(0, 153, 255, 0.6);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }
}

/* 极光效果动画 */
.banner::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, 
        rgba(255, 235, 59, 0.2) 0%, 
        rgba(255, 152, 0, 0.2) 25%, 
        rgba(0, 153, 255, 0.2) 50%, 
        rgba(0, 102, 204, 0.2) 75%, 
        rgba(255, 235, 59, 0.2) 100%);
    background-size: 300% 300%;
    animation: auroraFlow 8s ease infinite;
    pointer-events: none;
    z-index: 0;
    mix-blend-mode: overlay;
}

@keyframes auroraFlow {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* 浮动动画 */
@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(20px, -20px) scale(1.1);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.9);
    }
    75% {
        transform: translate(20px, 20px) scale(1.05);
    }
}

/* 动画类 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.8s ease-out, transform 0.8s var(--transition-cubic);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* QQ风格的光效动画 */
.qq-glow {
    position: absolute;
    pointer-events: none;
    z-index: 0;
}

.qq-glow::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* 页面滚动进度指示器 */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, #0099ff, #ffeb3b);
    z-index: 9999;
    width: 0;
    transition: width 0.2s ease;
    will-change: width;
}

/* 3D卡片翻转效果 */
.card-3d {
    perspective: 1000px;
}

.card-3d-inner {
    transition: transform 0.6s var(--transition-cubic);
    transform-style: preserve-3d;
    position: relative;
}

.card-3d:hover .card-3d-inner {
    transform: rotateY(15deg);
}

/* 背景浮动动画 */
.floating-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
    pointer-events: none;
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: floatSmooth 15s infinite ease-in-out;
}

@keyframes floatSmooth {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    25% {
        transform: translate(20px, -20px) scale(1.1);
    }
    50% {
        transform: translate(-20px, 20px) scale(0.9);
    }
    75% {
        transform: translate(20px, 20px) scale(1.05);
    }
}

.banner > .container {
    position: relative;
    z-index: 1;
}