/* 全局样式 */
:root {
    /* 主色调 */
    --primary-color: #2C3E50;
    --secondary-color: #34495E;
    --accent-color: #3498DB;
    --success-color: #2ECC71;
    --warning-color: #F1C40F;
    --danger-color: #E74C3C;
    --light-color: #ECF0F1;
    --dark-color: #2C3E50;
    --price-color: #E74C3C;

    /* 科技感渐变色 */
    --gradient-primary: linear-gradient(135deg, #24C6DC, #514A9D);
    --gradient-secondary: linear-gradient(135deg, #5D4157, #A8CABA);
    --gradient-accent: linear-gradient(135deg, #2193b0, #6dd5ed);
    --gradient-dark: linear-gradient(135deg, #2C3E50, #3498DB);
    --gradient-header: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.9));

    /* 阴影效果 */
    --shadow-soft: 0 5px 15px rgba(0,0,0,0.05);
    --shadow-strong: 0 15px 35px rgba(0,0,0,0.1);
    --shadow-inset: inset 0 2px 4px rgba(0,0,0,0.05);
    
    /* 玻璃态效果 */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: 1px solid rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    --glass-backdrop: blur(8px);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
}

/* 导航栏样式 */
.navbar {
    background: var(--glass-bg) !important;
    backdrop-filter: var(--glass-backdrop);
    -webkit-backdrop-filter: var(--glass-backdrop);
    border-bottom: var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    padding: 0.5rem 0;
}

/* 卡片通用样式 */
.card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-soft);
    border-radius: 10px;
    transition: all 0.3s ease;
}

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

/* 标签样式 */
.tag {
    display: inline-block;
    padding: 4px 12px;
    margin: 2px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-backdrop);
    border: var(--glass-border);
    color: var(--accent-color);
    text-shadow: 0 1px 1px rgba(0,0,0,0.1);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.tag:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 按钮样式 */
.btn {
    border-radius: 5px;
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.btn-primary:hover::before {
    opacity: 1;
}

/* 英雄区域样式 */
.hero-section {
    position: relative;
    background: var(--gradient-header), url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: white;
    padding: 160px 0 120px;
    margin-top: -76px;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.3;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.hero-section h1 {
    font-size: 3.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    margin-bottom: 1.5rem;
}

.hero-section .lead {
    font-size: 1.25rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
}

/* 特性卡片样式 */
.feature-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 2.5rem 2rem;
    text-align: center;
    height: 100%;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: all 0.4s ease;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.feature-icon {
    font-size: 3.5rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
}

/* 项目卡片样式 */
.project-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-soft);
    border-radius: 15px;
    overflow: hidden;
    height: 100%;
}

.project-card .card-body {
    padding: 2rem;
}

.project-card .card-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.project-card .tag {
    background: rgba(13, 110, 253, 0.1);
    color: var(--primary-color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
}

/* 统计数字样式 */
.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

/* 统计部分优化 */
.stats-section {
    background: var(--gradient-dark);
    padding: 80px 0;
    color: white;
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('../images/circuit-pattern.png');
    opacity: 0.1;
}

.stats-section .container {
    position: relative;
    z-index: 1;
}

/* 联系方式卡片样式 */
.contact-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 3rem 2rem;
    height: 100%;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.contact-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.qrcode-wrapper {
    background: var(--light-color);
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
    margin: 2rem auto;
    max-width: 200px;
}

.qrcode-wrapper:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-strong);
}

.qrcode-img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    display: block;
}

.qrcode-img {
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.contact-info {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0,0,0,0.1);
}

.contact-info p {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.contact-info small {
    color: var(--secondary-color);
}

/* 其他联系方式样式 */
.contact-list {
    text-align: left;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: var(--light-color);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
    background: white;
    box-shadow: var(--shadow-soft);
}

.contact-item i {
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.contact-link:hover {
    color: var(--primary-color);
    text-decoration: none;
}

/* 页脚样式 */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 3rem 0;
}

footer h5 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

footer p {
    margin-bottom: 0.5rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-section {
        padding: 120px 0 80px;
    }

    .hero-section h1 {
        font-size: 2.5rem;
    }

    .feature-card {
        padding: 2rem 1.5rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 1s ease-out;
}

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

::-webkit-scrollbar-track {
    background: var(--light-color);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0b5ed7;
}

/* 添加动画效果 */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.6s ease forwards;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 添加交错动画延迟 */
.feature-card:nth-child(1) { animation-delay: 0.2s; }
.feature-card:nth-child(2) { animation-delay: 0.4s; }
.feature-card:nth-child(3) { animation-delay: 0.6s; }

/* 联系我们部分优化 */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/cta-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: white;
    text-align: center;
    position: relative;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-secondary);
    opacity: 0.3;
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

/* 按钮样式优化 */
.btn-primary {
    background: var(--gradient-primary);
    border: none;
    padding: 0.8rem 2rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.1);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.btn-primary:hover::before {
    transform: translateX(0);
}

/* 页面头部样式 */
.page-header {
    position: relative;
    overflow: hidden;
    padding: 100px 0 60px;
    background: var(--gradient-dark), url('../images/tech-bg.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    margin-top: -76px;
    color: white;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-primary);
    opacity: 0.7;
}

.page-header .container {
    position: relative;
    z-index: 1;
}

/* 分类卡片样式 */
.category-card {
    background: white;
    border-radius: 15px;
    transition: all 0.3s ease;
    cursor: pointer;
}

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

.category-icon {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 项目分类标签 */
.project-category {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 500;
}

/* 筛选器样式 */
.filter-container {
    border-radius: 10px;
}

.filter-container .btn-outline-primary {
    border-radius: 20px;
    padding: 0.5rem 1.2rem;
    transition: all 0.3s ease;
}

.filter-container .btn-outline-primary:hover,
.filter-container .btn-outline-primary.active {
    background: var(--gradient-primary);
    border-color: transparent;
    transform: translateY(-2px);
}

/* 分页样式 */
.pagination {
    gap: 5px;
}

.pagination .page-link {
    border-radius: 5px;
    border: none;
    padding: 0.5rem 1rem;
    color: var(--dark-color);
    transition: all 0.3s ease;
}

.pagination .page-item.active .page-link {
    background: var(--gradient-primary);
    color: white;
}

.pagination .page-link:hover {
    background: var(--light-color);
    transform: translateY(-2px);
}

/* 项目详情页样式 */
.project-detail-header {
    background: var(--gradient-primary);
    padding: 100px 0 50px;
    color: white;
    position: relative;
}

.project-detail-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/pattern.png');
    opacity: 0.1;
}

.project-info-card {
    border-radius: 15px;
    padding: 2rem;
    background: white;
    box-shadow: var(--shadow-soft);
}

.project-features {
    list-style: none;
    padding: 0;
}

.project-features li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 2rem;
}

.project-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* 联系页面样式优化 */
.contact-methods {
    position: relative;
    z-index: 1;
}

.contact-card {
    background: white;
    border-radius: 15px;
    padding: 2.5rem;
    height: 100%;
    text-align: center;
    transition: all 0.4s ease;
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.qrcode-wrapper {
    background: var(--light-color);
    padding: 1rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.qrcode-wrapper:hover {
    transform: scale(1.05);
}

.qrcode-img {
    max-width: 200px;
    margin: 0 auto;
}

.contact-info {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eee;
}

.contact-list {
    text-align: left;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--light-color);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(5px);
    background: white;
    box-shadow: var(--shadow-soft);
}

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

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.contact-link:hover {
    text-decoration: underline;
}

/* 温馨提示样式 */
.notice-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow-soft);
}

.notice-card h4 i {
    color: var(--warning-color);
    margin-right: 0.5rem;
}

.notice-list {
    list-style: none;
    padding: 0;
}

.notice-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.notice-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .contact-card {
        padding: 1.5rem;
    }

    .qrcode-img {
        max-width: 150px;
    }

    .notice-card {
        padding: 1.5rem;
    }
}

/* 技术栈展示 */
.tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.tech-item {
    padding: 1.5rem;
    background: var(--light-color);
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
}

.tech-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-soft);
}

.tech-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* 价格标签 */
.price-tag {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--price-color);
    text-align: center;
}

/* 项目元信息 */
.project-meta {
    border-top: 1px solid #eee;
    border-bottom: 1px solid #eee;
    padding: 1rem 0;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.meta-item i {
    font-size: 1.2rem;
    color: var(--primary-color);
}

/* 服务包含内容 */
.service-includes ul li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.service-includes ul li i {
    color: var(--success-color);
}

/* 特点展示 */
.feature-item {
    padding: 1.5rem;
    background: var(--light-color);
    border-radius: 10px;
    height: 100%;
}

.feature-item i {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* 相关项目推荐 */
.related-projects {
    background: var(--light-color);
}

/* 动画优化 */
.fade-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.6s ease forwards;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 添加交错动画延迟 */
.tech-item:nth-child(1) { animation-delay: 0.2s; }
.tech-item:nth-child(2) { animation-delay: 0.4s; }
.tech-item:nth-child(3) { animation-delay: 0.6s; }

/* 响应式调整 */
@media (max-width: 768px) {
    .project-detail-header {
        padding: 60px 0 30px;
    }

    .project-detail-header h1 {
        font-size: 2rem;
    }

    .tech-stack {
        grid-template-columns: 1fr;
    }

    .sticky-top {
        position: relative !important;
        top: 0 !important;
    }
}

/* 关于我们页面样式 */
.about-header {
    background: var(--gradient-primary);
    position: relative;
    overflow: hidden;
}

.about-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/pattern-light.png');
    opacity: 0.1;
}

/* 团队统计样式 */
.team-stats {
    display: flex;
    justify-content: start;
}

.stat-item {
    padding: 1rem 2rem;
    background: var(--light-color);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-soft);
}

.stat-item .h2 {
    color: var(--primary-color);
    font-weight: bold;
}

/* 优势卡片样式 */
.advantage-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    height: 100%;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: all 0.3s ease;
}

.advantage-card:hover::before {
    opacity: 1;
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 服务流程样式 */
.process-timeline {
    display: flex;
    justify-content: space-between;
    position: relative;
    margin: 4rem 0;
}

.process-timeline::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    z-index: 0;
}

.process-item {
    text-align: center;
    position: relative;
    z-index: 1;
    flex: 1;
    padding: 0 1rem;
}

.process-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .process-timeline {
        flex-direction: column;
        margin: 2rem 0;
    }

    .process-timeline::before {
        display: none;
    }

    .process-item {
        margin-bottom: 2rem;
    }

    .team-stats {
        justify-content: center;
    }
}

/* 联系我们页面样式 */
.contact-header {
    background: var(--gradient-secondary);
}

.contact-section {
    position: relative;
    z-index: 1;
}

.contact-card {
    background: white;
    border-radius: 15px;
    padding: 2.5rem;
    height: 100%;
    text-align: center;
    transition: all 0.4s ease;
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-strong);
}

.contact-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.qrcode-wrapper {
    background: var(--light-color);
    padding: 1rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.qrcode-wrapper:hover {
    transform: scale(1.05);
}

.qrcode-img {
    max-width: 200px;
    margin: 0 auto;
}

.contact-info {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eee;
}

.contact-list {
    text-align: left;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--light-color);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(5px);
    background: white;
    box-shadow: var(--shadow-soft);
}

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

.contact-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.contact-link:hover {
    text-decoration: underline;
}

/* 温馨提示样式 */
.notice-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: var(--shadow-soft);
}

.notice-card h4 i {
    color: var(--warning-color);
    margin-right: 0.5rem;
}

.notice-list {
    list-style: none;
    padding: 0;
}

.notice-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.notice-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .contact-card {
        padding: 1.5rem;
    }

    .qrcode-img {
        max-width: 150px;
    }

    .notice-card {
        padding: 1.5rem;
    }
}

/* AI聊天对话框样式 */
.chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    width: 360px;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow-strong);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(100px);
    pointer-events: none;
}

.chat-widget.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.chat-header {
    padding: 15px 20px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 15px 15px 0 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-header h5 {
    margin: 0;
    font-size: 1rem;
}

.chat-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0;
}

.chat-messages {
    height: 300px;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.chat-message {
    max-width: 80%;
    padding: 10px 15px;
    border-radius: 15px;
    font-size: 0.9rem;
}

.chat-message.user {
    background: var(--light-color);
    align-self: flex-end;
    border-bottom-right-radius: 5px;
}

.chat-message.ai {
    background: var(--gradient-primary);
    color: white;
    align-self: flex-start;
    border-bottom-left-radius: 5px;
}

.chat-input {
    padding: 15px;
    border-top: 1px solid rgba(0,0,0,0.1);
    display: flex;
    gap: 10px;
}

.chat-input input {
    flex: 1;
    padding: 8px 15px;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 20px;
    outline: none;
}

.chat-input button {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.chat-input button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.chat-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    border-radius: 30px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-strong);
    transition: all 0.3s ease;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-toggle:hover {
    transform: translateY(-5px);
}

.chat-toggle i {
    font-size: 1.5rem;
}

/* AI助手横幅样式 */
.ai-assistant-banner {
    margin-top: 3rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.ai-assistant-card {
    text-align: center;
    color: white;
}

.ai-assistant-card i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.ai-assistant-card h4 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.ai-assistant-card p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.ai-assistant-card .btn {
    padding: 0.8rem 2rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.ai-assistant-card .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* 社交媒体图标样式 */
.social-icons {
    font-size: 1.5rem;
}

.social-icons a {
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    opacity: 0.7;
    transform: translateY(-3px);
}

/* 自定义Bilibili图标 */
.bi-bilibili::before {
    content: "\e900";
    background-image: url("data:image/svg+xml,%3Csvg t='1709004972656' class='icon' viewBox='0 0 1024 1024' version='1.1' xmlns='http://www.w3.org/2000/svg' p-id='4180' width='32' height='32'%3E%3Cpath d='M777.514667 131.669333a53.333333 53.333333 0 0 1 0 75.434667L728.746667 255.829333h49.92A160 160 0 0 1 938.666667 415.872v320a160 160 0 0 1-160 160H245.333333A160 160 0 0 1 85.333333 735.872v-320a160 160 0 0 1 160-160h49.749334L246.4 207.146667a53.333333 53.333333 0 1 1 75.392-75.434667l113.152 113.152c3.370667 3.370667 6.186667 7.04 8.448 10.965333h137.088c2.261333-3.925333 5.12-7.68 8.490667-11.008l113.109333-113.152a53.333333 53.333333 0 0 1 75.434667 0z m1.152 231.253334H245.333333a53.333333 53.333333 0 0 0-53.205333 49.365333l-0.128 4.010667v320c0 28.117333 21.76 51.157333 49.365333 53.162666l3.968 0.170667h533.333334a53.333333 53.333333 0 0 0 53.205333-49.365333l0.128-3.968v-320c0-29.44-23.893333-53.333333-53.333333-53.333334z m-426.666667 106.666666c29.44 0 53.333333 23.893333 53.333333 53.333334v53.333333a53.333333 53.333333 0 1 1-106.666666 0v-53.333333c0-29.44 23.893333-53.333333 53.333333-53.333334z m320 0c29.44 0 53.333333 23.893333 53.333333 53.333334v53.333333a53.333333 53.333333 0 1 1-106.666666 0v-53.333333c0-29.44 23.893333-53.333333 53.333333-53.333334z' fill='%23ffffff' p-id='4181'%3E%3C/path%3E%3C/svg%3E");
    background-size: contain;
    display: inline-block;
    width: 1em;
    height: 1em;
}

/* 订购表单样式 */
.selected-project {
    border: 1px solid rgba(0,0,0,0.1);
}

.project-tags {
    margin: 10px 0;
}

.project-price {
    font-size: 1.1rem;
    font-weight: 500;
}

.form-label {
    font-weight: 500;
}

.form-check-label {
    cursor: pointer;
}

/* 表单验证样式 */
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

.was-validated .form-control:valid {
    border-color: var(--success-color);
}

.was-validated .form-control:invalid {
    border-color: var(--danger-color);
}

/* 联系页面样式 */
.contact-highlight {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.contact-highlight:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.contact-highlight i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.contact-highlight h5 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: white;
}

.contact-highlight p {
    margin-bottom: 0;
    color: rgba(255, 255, 255, 0.8);
}

.contact-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    height: 100%;
    box-shadow: var(--shadow-soft);
}

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

.qrcode-wrapper {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 10px;
    margin: 1.5rem 0;
    display: inline-block;
}

.qrcode-img {
    max-width: 200px;
    height: auto;
}

.badge {
    font-weight: normal;
    padding: 0.5em 1em;
    margin: 0 0.2rem;
}