/* 自定义CSS样式 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    scroll-behavior: smooth;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #1a1a2e;
}

::-webkit-scrollbar-thumb {
    background: #0099ff;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #00d4ff;
}

/* 导航栏样式 */
#navbar {
    transition: background-color 0.3s ease;
}

#navbar.scrolled {
    background-color: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
}

/* 浮动动画 */
.floating-element {
    animation: float 6s ease-in-out infinite;
}

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

/* 渐变文字效果 */
.gradient-text {
    background: linear-gradient(135deg, #0099ff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 卡片悬浮效果 */
.card-hover {
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-hover:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 153, 255, 0.2);
    border-color: #0099ff;
}

/* 按钮动画 */
.btn-primary {
    background: linear-gradient(135deg, #0099ff, #00d4ff);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 25px rgba(0, 153, 255, 0.4);
}

/* 背景粒子效果 */
.particles-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #0099ff;
    border-radius: 50%;
    animation: particles 20s linear infinite;
}

@keyframes particles {
    0% {
        opacity: 0;
        transform: translateY(100vh) rotate(0deg);
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateY(-100vh) rotate(360deg);
    }
}

/* 技能进度条 */
.skill-bar {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    height: 8px;
    margin-top: 10px;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, #0099ff, #00d4ff);
    border-radius: 10px;
    transition: width 2s ease-in-out;
    width: 0%;
}

/* 数字计数器 */
.counter {
    font-size: 3rem;
    font-weight: bold;
    color: #0099ff;
}

/* 响应式图片 */
.responsive-img {
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.responsive-img:hover {
    transform: scale(1.05);
}

/* 时间线样式 */
.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, #0099ff, #00d4ff);
}

.timeline-item {
    position: relative;
    margin-bottom: 30px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border-left: 3px solid #0099ff;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -46px;
    top: 25px;
    width: 12px;
    height: 12px;
    background: #0099ff;
    border-radius: 50%;
    border: 3px solid #1a1a2e;
}

/* 加载动画 */
.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(0, 153, 255, 0.3);
    border-top: 3px solid #0099ff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: #1a1a2e;
    margin: 5% auto;
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    position: relative;
    border: 1px solid #0099ff;
    box-shadow: 0 20px 40px rgba(0, 153, 255, 0.3);
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: #0099ff;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: white;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #0099ff;
    box-shadow: 0 0 10px rgba(0, 153, 255, 0.3);
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

/* 标签样式 */
.tag {
    display: inline-block;
    padding: 5px 12px;
    background: rgba(0, 153, 255, 0.2);
    color: #00d4ff;
    border-radius: 20px;
    font-size: 12px;
    margin: 5px;
    border: 1px solid rgba(0, 153, 255, 0.3);
}

/* 成功案例卡片 */
.case-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 153, 255, 0.2);
    border-color: #0099ff;
}

.case-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.case-card:hover img {
    transform: scale(1.1);
}

/* 统计数字样式 */
.stat-number {
    font-size: 4rem;
    font-weight: bold;
    background: linear-gradient(135deg, #0099ff, #00d4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 服务特色图标 */
.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #0099ff, #00d4ff);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: transform 0.3s ease;
}

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

/* 移动端优化 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
        padding: 20px;
    }
    
    .timeline {
        padding-left: 20px;
    }
    
    .timeline::before {
        left: 10px;
    }
    
    .timeline-item::before {
        left: -36px;
    }
}

/* 滚动显示动画 */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in-up.show {
    opacity: 1;
    transform: translateY(0);
}

/* 视差滚动效果 */
.parallax {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

/* 团队成员卡片 */
.team-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 153, 255, 0.2);
    border-color: #0099ff;
}

.team-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #0099ff, #00d4ff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

/* 技术栈标签 */
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.tech-tag {
    padding: 8px 16px;
    background: rgba(0, 153, 255, 0.2);
    border: 1px solid rgba(0, 153, 255, 0.3);
    border-radius: 25px;
    color: #00d4ff;
    font-size: 14px;
    transition: all 0.3s ease;
}

.tech-tag:hover {
    background: rgba(0, 153, 255, 0.3);
    transform: scale(1.05);
}

/* 联系表单 */
.contact-form {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 地图容器 */
.map-container {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

/* 社交媒体图标 */
.social-links {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 20px;
}

.social-link {
    width: 50px;
    height: 50px;
    background: rgba(0, 153, 255, 0.2);
    border: 1px solid rgba(0, 153, 255, 0.3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #00d4ff;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background: #0099ff;
    color: white;
    transform: scale(1.1);
}

/* 价格表 */
.pricing-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 40px 30px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.pricing-card.featured {
    border-color: #0099ff;
    background: rgba(0, 153, 255, 0.1);
    transform: scale(1.05);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 153, 255, 0.2);
}

.price {
    font-size: 3rem;
    font-weight: bold;
    color: #0099ff;
    margin: 20px 0;
}

/* FAQ 样式 */
.faq-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    margin-bottom: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question:hover {
    background: rgba(0, 153, 255, 0.1);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-answer.active {
    padding: 20px;
    max-height: 200px;
}

/* 搜索框 */
.search-box {
    position: relative;
    max-width: 400px;
    margin: 0 auto;
}

.search-input {
    width: 100%;
    padding: 15px 50px 15px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 25px;
    color: white;
    font-size: 16px;
}

.search-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #0099ff;
    font-size: 18px;
    cursor: pointer;
}

/* 面包屑导航 */
.breadcrumb {
    background: rgba(255, 255, 255, 0.05);
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 30px;
}

.breadcrumb a {
    color: #0099ff;
    text-decoration: none;
    margin-right: 10px;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #0099ff, #00d4ff);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 100;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: scale(1.1);
}