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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
    overflow-x: hidden;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-logo {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.navbar-brand h1 {
    font-size: 24px;
    font-weight: 700;
    color: #007bff;
    letter-spacing: -0.5px;
    margin: 0;
}

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

.nav-link {
    text-decoration: none;
    color: #555;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: #007bff;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #007bff;
    transition: width 0.3s ease;
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: #007bff;
    cursor: pointer;
    z-index: 1001;
    padding: 10px;
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 5px;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 16px;
}

.btn-primary {
    background-color: #007bff;
    color: white;
}

.btn-primary:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.4);
}

.btn-secondary {
    background-color: #007bff;
    color: white;
}

.btn-secondary:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.4);
}

/* 主形象区域样式 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" fill="none"/><path d="M0 50h100M50 0v100" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></svg>');
    opacity: 0.3;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
    font-weight: 300;
}

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

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

.hero-visual {
    width: 450px;
    height: 450px;
    margin: 0 auto;
    position: relative;
    overflow: visible;
    display: flex;
    justify-content: center;
    align-items: center;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: 50%;
    z-index: 1;
}

.tech-circle {
    position: absolute;
    border-radius: 50%;
    backdrop-filter: blur(10px);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    animation: float 8s ease-in-out infinite;
    transition: all 0.3s ease;
    cursor: pointer;
    z-index: 1;
}

.tech-circle i {
    width: 202.5px; /* 135px * 1.5 */
    height: 202.5px; /* 135px * 1.5 */
    color: white;
    opacity: 1;
}

/* 企业安全 */
.tech-circle-1 {
    width: 180px;
    height: 180px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.1) 100%);
    color: white;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 255, 255, 0.6), 0 0 60px rgba(255, 255, 255, 0.4), inset 0 0 10px rgba(255, 255, 255, 0.2);
}

/* 智慧地产 */
.tech-circle-2 {
    width: 120px;
    height: 120px;
    top: 15%;
    right: 15%;
    animation-delay: 2s;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.1) 100%);
    color: white;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 255, 255, 0.6), 0 0 60px rgba(255, 255, 255, 0.4), inset 0 0 10px rgba(255, 255, 255, 0.2);
}

/* IT运维 */
.tech-circle-3 {
    width: 150px;
    height: 150px;
    bottom: 10%;
    left: 15%;
    animation-delay: 4s;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.1) 100%);
    color: white;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 255, 255, 0.6), 0 0 60px rgba(255, 255, 255, 0.4), inset 0 0 10px rgba(255, 255, 255, 0.2);
}

/* 医疗金融 */
.tech-circle-4 {
    width: 130px;
    height: 130px;
    bottom: 15%;
    right: 10%;
    animation-delay: 6s;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.1) 100%);
    color: white;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.8), 0 0 30px rgba(255, 255, 255, 0.6), 0 0 60px rgba(255, 255, 255, 0.4), inset 0 0 10px rgba(255, 255, 255, 0.2);
}

/* 中心圆 - Oraper */
.center-circle {
    width: 150px;
    height: 150px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.8) 100%);
    box-shadow: 0 0 50px rgba(255, 255, 255, 0.9), 0 0 80px rgba(255, 255, 255, 0.6);
    z-index: 2;
    animation: haloPulse 3s ease-in-out infinite;
}

.center-circle-content {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    transform-origin: center center;
}

.company-name {
    font-size: 28px;
    font-weight: 800;
    color: #007bff;
    letter-spacing: -1px;
    animation: none;
}

.center-circle .center-circle-content .company-logo {
    max-width: 60%;
    max-height: 60%;
    object-fit: contain;
    animation: none;
    height: auto;
}

@keyframes haloPulse {
    0%, 100% {
        box-shadow: 0 0 40px rgba(255, 255, 255, 0.8), 0 0 60px rgba(255, 255, 255, 0.4);
    }
    50% {
        box-shadow: 0 0 60px rgba(255, 255, 255, 1), 0 0 100px rgba(255, 255, 255, 0.6), 0 0 150px rgba(255, 255, 255, 0.3);
    }
}

/* 为4大业务圈添加自然的呼吸效果 */
@keyframes businessPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 30px currentColor, 0 0 0 2px currentColor;
    }
    50% {
        transform: scale(1.08);
        box-shadow: 0 0 40px currentColor, 0 0 0 2px currentColor;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
}

/* 通用章节样式 */
section {
    padding: 100px 0;
}

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

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 18px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们样式 */
.about {
    background-color: white;
    position: relative;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: stretch;
    margin-bottom: 40px;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.about-visual {
    position: relative;
    width: 350px;
    height: 350px;
}

.grid-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><rect width="100" height="100" fill="none"/><path d="M0 25h100M25 0v100M0 50h100M50 0v100M0 75h100M75 0v100" stroke="rgba(0, 123, 255, 0.1)" stroke-width="1"/></svg>');
    opacity: 0.5;
}

.about-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background-color: #007bff;
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 10px 30px rgba(0, 123, 255, 0.3);
}

.about-icon i {
    width: 50px;
    height: 50px;
    color: white;
}

.about-logo {
    margin-bottom: 20px;
    text-align: center;
}

.company-logo {
    max-width: 100%;
    height: 100px;
    display: block;
    margin: 0 auto;
    object-fit: contain;
    animation: glow 3s ease-in-out infinite;
}

.about-text h3 {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
}

.about-text p {
    font-size: 18px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.8;
    display: block;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
    margin-top: 0;
    padding-top: 40px;
    border-top: 1px solid #eee;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    border-radius: 10px;
    transition: all 0.3s ease;
    background-color: white;
}

.stat-item:hover {
    background-color: #f8f9fa;
    box-shadow: 0 10px 30px rgba(0, 123, 255, 0.15);
    transform: translateY(-5px) scale(1.02);
}

.stat-item:hover .stat-number {
    color: #0056b3;
    transform: scale(1.1);
}

.stat-item:hover .stat-label {
    color: #495057;
}

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: #007bff;
    margin-bottom: 5px;
    transition: all 0.3s ease;
}

.stat-label {
    font-size: 16px;
    color: #666;
    font-weight: 500;
    transition: all 0.3s ease;
}

/* 核心业务样式 */
.services {
    background-color: #f8f9fa;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.service-card {
    background-color: white;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border-color: #007bff;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #007bff 0%, #6610f2 100%);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 25px;
}

.service-icon i {
    width: 40px;
    height: 40px;
    color: white;
}

.service-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
}

.service-card p {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-features {
    list-style: none;
}

.service-features li {
    padding: 8px 0;
    color: #555;
    position: relative;
    padding-left: 25px;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
}

/* 联系我们样式 */
.contact {
    background-color: white;
}

.contact-content {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 0;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: 10px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background-color: #007bff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
}

.contact-icon i {
    width: 24px;
    height: 24px;
    color: white;
}

.contact-details {
    margin-top: 15px;
    width: 100%;
}

.contact-details h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-details p {
    font-size: 16px;
    color: #555;
    line-height: 1.6;
    margin: 0;
}

/* 页脚样式 */
.footer {
    background-color: #343a40;
    color: white;
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #007bff;
}

.footer-brand .footer-logo {
    height: 30px;
    margin-bottom: 15px;
    filter: brightness(1.2); /* 调整logo亮度使其在深色背景上更清晰 */
}

.footer-brand p {
    font-size: 16px;
    color: #adb5bd;
    line-height: 1.7;
}

.footer-links h4,
.footer-social h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #fff;
}

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

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

.footer-links a {
    color: #adb5bd;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #007bff;
}

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

.social-icon {
    width: 45px;
    height: 45px;
    background-color: #495057;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background-color: #007bff;
    transform: translateY(-3px);
}

.social-icon i {
    width: 20px;
    height: 20px;
}

/* 社交图标逐个点亮动画 - 亮下一个就灭上一个 */
.social-icon {
    animation: sequentialLight 8s ease-in-out infinite;
    animation-fill-mode: both;
    /* 添加浏览器前缀以提高兼容性 */
    -webkit-animation: sequentialLight 8s ease-in-out infinite;
    -webkit-animation-fill-mode: both;
    -moz-animation: sequentialLight 8s ease-in-out infinite;
    -moz-animation-fill-mode: both;
    -ms-animation: sequentialLight 8s ease-in-out infinite;
    -ms-animation-fill-mode: both;
}

/* 为每个图标设置不同的动画延迟和颜色 */
.security-color {
    animation-delay: 0s;
    -webkit-animation-delay: 0s;
    -moz-animation-delay: 0s;
    -ms-animation-delay: 0s;
}

.realestate-color {
    animation-delay: 2s;
    -webkit-animation-delay: 2s;
    -moz-animation-delay: 2s;
    -ms-animation-delay: 2s;
}

.itops-color {
    animation-delay: 4s;
    -webkit-animation-delay: 4s;
    -moz-animation-delay: 4s;
    -ms-animation-delay: 4s;
}

.healthcare-color {
    animation-delay: 6s;
    -webkit-animation-delay: 6s;
    -moz-animation-delay: 6s;
    -ms-animation-delay: 6s;
}

/* 为每个图标创建独立的动画，避免使用CSS变量 */
.security-color {
    -webkit-animation-name: sequentialLight1;
    -moz-animation-name: sequentialLight1;
    -ms-animation-name: sequentialLight1;
    animation-name: sequentialLight1;
}

.realestate-color {
    -webkit-animation-name: sequentialLight2;
    -moz-animation-name: sequentialLight2;
    -ms-animation-name: sequentialLight2;
    animation-name: sequentialLight2;
}

.itops-color {
    -webkit-animation-name: sequentialLight3;
    -moz-animation-name: sequentialLight3;
    -ms-animation-name: sequentialLight3;
    animation-name: sequentialLight3;
}

.healthcare-color {
    -webkit-animation-name: sequentialLight4;
    -moz-animation-name: sequentialLight4;
    -ms-animation-name: sequentialLight4;
    animation-name: sequentialLight4;
}

/* 顺序点亮动画：每个图标在25%的周期内点亮，其他时间熄灭 */
@keyframes sequentialLight1 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #007bff; /* 企业安全-蓝色（点亮） */
    }
}

@-webkit-keyframes sequentialLight1 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #007bff; /* 企业安全-蓝色（点亮） */
    }
}

@-moz-keyframes sequentialLight1 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #007bff; /* 企业安全-蓝色（点亮） */
    }
}

@-ms-keyframes sequentialLight1 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #007bff; /* 企业安全-蓝色（点亮） */
    }
}

@keyframes sequentialLight2 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #28a745; /* 智慧地产-绿色（点亮） */
    }
}

@-webkit-keyframes sequentialLight2 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #28a745; /* 智慧地产-绿色（点亮） */
    }
}

@-moz-keyframes sequentialLight2 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #28a745; /* 智慧地产-绿色（点亮） */
    }
}

@-ms-keyframes sequentialLight2 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #28a745; /* 智慧地产-绿色（点亮） */
    }
}

@keyframes sequentialLight3 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #6610f2; /* IT运维-紫色（点亮） */
    }
}

@-webkit-keyframes sequentialLight3 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #6610f2; /* IT运维-紫色（点亮） */
    }
}

@-moz-keyframes sequentialLight3 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #6610f2; /* IT运维-紫色（点亮） */
    }
}

@-ms-keyframes sequentialLight3 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #6610f2; /* IT运维-紫色（点亮） */
    }
}

@keyframes sequentialLight4 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #dc3545; /* 医疗金融-红色（点亮） */
    }
}

@-webkit-keyframes sequentialLight4 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #dc3545; /* 医疗金融-红色（点亮） */
    }
}

@-moz-keyframes sequentialLight4 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #dc3545; /* 医疗金融-红色（点亮） */
    }
}

@-ms-keyframes sequentialLight4 {
    0%, 23%, 25%, 48%, 50%, 73%, 75%, 98%, 100% {
        background-color: #495057; /* 灰色（熄灭） */
    }
    2%, 22% {
        background-color: #dc3545; /* 医疗金融-红色（点亮） */
    }
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid #495057;
    color: #adb5bd;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero .container,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-title {
        font-size: 40px;
    }

    .about-text h3 {
        font-size: 24px;
    }

    .company-logo {
        max-width: 150px;
    }
}

@media (max-width: 768px) {
    .navbar-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background-color: white;
        padding: 30px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
        z-index: 999;
    }

    .navbar-menu.active {
        left: 0;
    }

    .navbar-toggle {
        display: block !important;
        position: relative;
        z-index: 1001 !important;
        padding: 15px;
        background-color: rgba(255, 255, 255, 0.9);
        border-radius: 5px;
        cursor: pointer !important;
        touch-action: manipulation;
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
        outline: none;
        border: 1px solid transparent;
    }
    
    .navbar-toggle:focus {
        outline: none;
        border-color: #007bff;
    }

    section {
        padding: 80px 0;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-visual {
        width: 320px;
        height: 320px;
    }

    /* 平板版优化 - 调整业务圈圈位置避免重叠 */
    .tech-circle-1 {
        width: 112px;
        height: 112px;
        top: 40px;
        left: 40px;
        box-shadow: 0 0 8px rgba(255, 255, 255, 0.8), 0 0 25px rgba(255, 255, 255, 0.6), 0 0 50px rgba(255, 255, 255, 0.4), inset 0 0 8px rgba(255, 255, 255, 0.2);
    }
    
    .tech-circle-2 {
        width: 56px;
        height: 56px;
        top: 60px;
        right: 40px; /* 从60px调整到40px，更靠近中心圆 */
        box-shadow: 0 0 6px rgba(255, 255, 255, 0.8), 0 0 20px rgba(255, 255, 255, 0.6), 0 0 40px rgba(255, 255, 255, 0.4), inset 0 0 6px rgba(255, 255, 255, 0.2);
    }
    
    .tech-circle-3 {
        width: 91px;
        height: 91px;
        bottom: 40px;
        left: 50px;
        box-shadow: 0 0 7px rgba(255, 255, 255, 0.8), 0 0 22px rgba(255, 255, 255, 0.6), 0 0 45px rgba(255, 255, 255, 0.4), inset 0 0 7px rgba(255, 255, 255, 0.2);
    }
    
    .tech-circle-4 {
        width: 70px;
        height: 70px;
        bottom: 50px;
        right: 50px;
        box-shadow: 0 0 6px rgba(255, 255, 255, 0.8), 0 0 20px rgba(255, 255, 255, 0.6), 0 0 40px rgba(255, 255, 255, 0.4), inset 0 0 6px rgba(255, 255, 255, 0.2);
    }
    
    .center-circle {
        width: 98px;
        height: 98px;
    }
    
    .company-name {
        font-size: 18px;
    }
    
    .tech-circle i {
        width: 151.875px; /* 101.25px * 1.5 */
        height: 151.875px; /* 101.25px * 1.5 */
    }

    .section-title {
        font-size: 30px;
    }

    .about-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-content {
        gap: 40px;
    }

    .footer-content {
        gap: 40px;
    }

    .brand-logo {
        height: 35px;
    }

    .navbar-brand h1 {
        font-size: 22px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .hero-visual {
        width: 280px;
        height: 280px;
    }

    /* 手机版优化 - 调整业务圈圈位置避免重叠 */
    .tech-circle-1 {
        width: 96px;
        height: 96px;
        top: 35px;
        left: 35px;
        box-shadow: 0 0 7px rgba(255, 255, 255, 0.8), 0 0 22px rgba(255, 255, 255, 0.6), 0 0 45px rgba(255, 255, 255, 0.4), inset 0 0 7px rgba(255, 255, 255, 0.2);
    }
    
    .tech-circle-2 {
        width: 48px;
        height: 48px;
        top: 50px;
        right: 30px; /* 从50px调整到30px，更靠近中心圆 */
        box-shadow: 0 0 5px rgba(255, 255, 255, 0.8), 0 0 18px rgba(255, 255, 255, 0.6), 0 0 35px rgba(255, 255, 255, 0.4), inset 0 0 5px rgba(255, 255, 255, 0.2);
    }
    
    .tech-circle-3 {
        width: 78px;
        height: 78px;
        bottom: 35px;
        left: 45px;
        box-shadow: 0 0 6px rgba(255, 255, 255, 0.8), 0 0 20px rgba(255, 255, 255, 0.6), 0 0 40px rgba(255, 255, 255, 0.4), inset 0 0 6px rgba(255, 255, 255, 0.2);
    }
    
    .tech-circle-4 {
        width: 60px;
        height: 60px;
        bottom: 45px;
        right: 45px;
        box-shadow: 0 0 5px rgba(255, 255, 255, 0.8), 0 0 18px rgba(255, 255, 255, 0.6), 0 0 35px rgba(255, 255, 255, 0.4), inset 0 0 5px rgba(255, 255, 255, 0.2);
    }
    
    .center-circle {
        width: 84px;
        height: 84px;
    }
    
    .company-name {
        font-size: 16px;
    }
    
    .tech-circle i {
        width: 135px; /* 90px * 1.5 */
        height: 135px; /* 90px * 1.5 */
    }

    .section-title {
        font-size: 26px;
    }

    .company-logo {
        max-width: 120px;
    }

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

    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }

    .brand-logo {
        height: 30px;
    }

    .navbar-brand h1 {
        font-size: 20px;
    }

    .service-card {
        padding: 30px 20px;
    }
}

/* Logo光晕动画 */
@keyframes glow {
    0% {
        filter: drop-shadow(0 0 5px rgba(0, 123, 255, 0.3));
    }
    50% {
        filter: drop-shadow(0 0 20px rgba(0, 123, 255, 0.6)) drop-shadow(0 0 30px rgba(0, 123, 255, 0.3));
    }
    100% {
        filter: drop-shadow(0 0 5px rgba(0, 123, 255, 0.3));
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}