/* 基础样式重置 - 华为云风格 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.8;
    color: #222;
    overflow-x: hidden;
    background: #fff;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 导航栏样式 - 华为云风格 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: #fff;
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 64px;
    position: relative;
}

.nav-logo-center {
    position: absolute;
    left: 40px;
    transform: none;
}

.nav-logo-center h2 {
    color: #000;
    font-weight: 600;
    font-size: 1.5rem;
    margin: 0;
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 3rem;
    position: absolute;
    right: 40px;
}

.nav-link {
    text-decoration: none;
    color: #555;
    font-weight: 400;
    font-size: 0.95rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #000;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #0066cc;
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 封面样式 - 华为云风格 */
.hero {
    min-height: 100vh;
    background: linear-gradient(180deg, #f5f7fa 0%, #fff 100%);
    color: #222;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.03) 0%, rgba(0, 102, 204, 0.08) 100%);
    clip-path: polygon(20% 0, 100% 0, 100% 100%, 0% 100%);
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: left;
    margin-bottom: 5rem;
    max-width: 800px;
}

.hero-title-center {
    font-size: 3.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #000;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: #0066cc;
    font-weight: 500;
}

.hero-description {
    font-size: 1.05rem;
    margin-bottom: 2.5rem;
    color: #555;
    line-height: 1.8;
    max-width: 700px;
}

/* 轮播图样式 - 华为云风格 */
.carousel-container {
    position: relative;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto 5rem;
    overflow: hidden;
    border-radius: 8px;
    background: linear-gradient(135deg, #f0f5ff 0%, #e6f0ff 100%);
    box-shadow: 0 4px 16px rgba(0, 102, 204, 0.1);
}

.carousel-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        /* 代码符号 */
        linear-gradient(90deg, transparent 0%, transparent 48%, rgba(0, 102, 204, 0.03) 48%, rgba(0, 102, 204, 0.03) 52%, transparent 52%),
        linear-gradient(0deg, transparent 0%, transparent 48%, rgba(0, 102, 204, 0.03) 48%, rgba(0, 102, 204, 0.03) 52%, transparent 52%);
    background-size: 50px 50px;
    opacity: 0.5;
    pointer-events: none;
}

.carousel-container::after {
    content: '{ } < > [ ] ( ) ; : = + - * / // /* */ function class var let const if else return import export async await => 01010101 10101010';
    position: absolute;
    top: 20px;
    left: -100%;
    width: 200%;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: rgba(0, 102, 204, 0.08);
    white-space: nowrap;
    animation: codeScroll 30s linear infinite;
    pointer-events: none;
    z-index: 0;
}

@keyframes codeScroll {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(50%);
    }
}

.carousel-wrapper {
    position: relative;
    width: 100%;
    height: 400px;
    z-index: 1;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-slide::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 102, 204, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.carousel-slide::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(0, 128, 255, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.carousel-slide.active {
    opacity: 1;
    z-index: 1;
}

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

.tech-element {
    position: absolute;
    animation: float 6s ease-in-out infinite;
}

.tech-element-1 {
    top: 15%;
    left: 10%;
    animation-delay: 0s;
}

.tech-element-2 {
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.tech-element-3 {
    bottom: 20%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

.carousel-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    padding: 40px;
    max-width: 1000px;
    position: relative;
    z-index: 1;
}

.carousel-icon {
    flex-shrink: 0;
}

.carousel-icon svg {
    width: 200px;
    height: 200px;
    filter: drop-shadow(0 4px 12px rgba(0, 102, 204, 0.2));
}

.carousel-text {
    flex: 1;
    text-align: left;
}

.carousel-text h2 {
    font-size: 2.5rem;
    font-weight: 600;
    color: #000;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.carousel-text p {
    font-size: 1.2rem;
    color: #666;
    line-height: 1.8;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid #e5e7eb;
    color: #0066cc;
    font-size: 2rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.carousel-btn:hover {
    background: #0066cc;
    color: white;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.carousel-prev {
    left: 20px;
}

.carousel-next {
    right: 20px;
}

.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 2;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: 2px solid #0066cc;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: #0066cc;
    width: 32px;
    border-radius: 6px;
}

.indicator:hover {
    background: rgba(0, 102, 204, 0.7);
}

/* 项目简介卡片 - 华为云风格 */
.hero-about-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 5rem;
}

.hero-card {
    background: #fff;
    border-radius: 8px;
    padding: 32px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.hero-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: #0066cc;
    transition: height 0.3s ease;
}

.hero-card:hover {
    transform: translateY(-4px);
    border-color: #0066cc;
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.12);
}

.hero-card:hover::before {
    height: 100%;
}

/* 可点击卡片样式 */
.clickable-card {
    cursor: pointer;
    position: relative;
}

.card-click-hint {
    position: absolute;
    bottom: 10px;
    right: 15px;
    font-size: 0.75rem;
    color: rgba(79, 70, 229, 0.7);
    opacity: 0;
    transition: opacity 0.3s ease;
    font-weight: 500;
}

.clickable-card:hover .card-click-hint {
    opacity: 1;
}

.hero-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: #000;
    font-weight: 600;
}

.hero-card p {
    color: #666;
    line-height: 1.8;
    font-size: 0.95rem;
}

/* 项目特点网格 - 华为云风格 */
.hero-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 5rem;
}

.hero-feature-card {
    background: #fff;
    border-radius: 8px;
    padding: 32px 24px;
    border: 1px solid #e5e7eb;
    text-align: left;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    position: relative;
}

.hero-feature-card:hover {
    transform: translateY(-4px);
    border-color: #0066cc;
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.12);
}

.hero-feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #0066cc, #0080ff);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.hero-feature-icon svg {
    width: 24px;
    height: 24px;
    color: white;
    stroke-width: 2;
}

.hero-feature-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: #000;
    font-weight: 600;
}

.hero-feature-card p {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.7;
}

/* 统计数据 - 华为云风格 */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 32px;
    margin-bottom: 3rem;
    padding: 48px 0;
    border-top: 1px solid #e5e7eb;
    border-bottom: 1px solid #e5e7eb;
}

.hero-stat-item {
    text-align: center;
    padding: 0;
    background: transparent;
    border: none;
    transition: all 0.3s ease;
}

.hero-stat-item:hover {
    transform: translateY(-2px);
}

.hero-stat-item .stat-number {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #0066cc;
}

.hero-stat-item .stat-label {
    font-size: 0.9rem;
    color: #666;
    font-weight: 400;
}

.btn {
    padding: 12px 32px;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 400;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
}

.btn-primary {
    background: #0066cc;
    color: white;
}

.btn-primary:hover {
    background: #0052a3;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #0066cc;
    border: 1px solid #0066cc;
}

.btn-secondary:hover {
    background: #0066cc;
    color: white;
}

.floating-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: float 6s ease-in-out infinite;
    position: absolute;
    max-width: 200px;
}

.floating-card:first-child {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-card-2 {
    top: 60%;
    right: 10%;
    animation-delay: 3s;
}

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

.card-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

/* 通用区块样式 - 华为云风格 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 600;
    color: #000;
    margin-bottom: 1rem;
    position: relative;
    letter-spacing: -0.5px;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #0066cc;
    border-radius: 2px;
}

.section-header p {
    font-size: 1.05rem;
    color: #666;
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

/* 导航按钮样式 */
.nav-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
}

.footer-team-btn {
    background: none;
    border: none;
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
}

.footer-team-btn:hover {
    color: #4F46E5;
}/* 团队成员样式 - 华为云风格 */

.team {
    padding: 80px 0;
    background: #fafbfc;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.team-member {
    background: #fff;
    border-radius: 8px;
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.team-member:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: #0066cc;
}

.member-avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid #e5e7eb;
}

.member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.member-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #000;
    margin-bottom: 0.5rem;
}

.member-role {
    color: #0066cc;
    font-weight: 400;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.member-description {
    color: #666;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.member-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.skill-tag {
    background: #f0f5ff;
    color: #0066cc;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 400;
    border: 1px solid #d6e4ff;
}

/* 联系我们样式 - 华为云风格 */
.contact {
    padding: 80px 0;
    background: #fff;
    position: relative;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #0066cc, #0080ff);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: white;
    stroke-width: 2;
}

.contact-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #000;
    margin-bottom: 0.3rem;
}

.contact-item p {
    color: #666;
    font-size: 0.9rem;
}

.contact-form {
    background: #fafbfc;
    padding: 32px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid #e5e7eb;
    position: relative;
    z-index: 1;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    font-family: inherit;
    background: #fff;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0066cc;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

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

/* 页脚样式 - 华为云风格 */
.footer {
    background: #f5f7fa;
    color: #666;
    padding: 60px 0 30px;
    border-top: 1px solid #e5e7eb;
}

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

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #000;
    font-weight: 600;
    font-size: 1rem;
}

.footer-section p {
    color: #666;
    line-height: 1.8;
    font-size: 0.9rem;
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section ul li a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

.footer-section ul li a:hover {
    color: #0066cc;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    color: #666;
    text-decoration: none;
    padding: 8px;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    transition: all 0.3s ease;
    background: #fff;
}

.social-link:hover {
    color: #0066cc;
    border-color: #0066cc;
    background: #f0f5ff;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #e5e7eb;
    color: #999;
    font-size: 0.85rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-container {
        justify-content: space-between;
        padding: 0 15px;
    }
    
    .nav-logo-center {
        position: static;
        transform: none;
    }
    
    .nav-logo-center h2 {
        font-size: 1.5rem;
    }
    
    .hero {
        padding: 80px 0 30px;
        min-height: auto;
    }
    
    .hero-container {
        padding: 0 15px;
    }
    
    .hero-title-center {
        font-size: 2.5rem;
        line-height: 1.2;
        margin-bottom: 1rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .carousel-wrapper {
        height: 350px;
    }
    
    .carousel-content {
        flex-direction: column;
        gap: 30px;
        padding: 30px 20px;
    }
    
    .carousel-icon svg {
        width: 150px;
        height: 150px;
    }
    
    .carousel-text {
        text-align: center;
    }
    
    .carousel-text h2 {
        font-size: 1.8rem;
    }
    
    .carousel-text p {
        font-size: 1rem;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }
    
    .carousel-prev {
        left: 10px;
    }
    
    .carousel-next {
        right: 10px;
    }
    
    .tech-element {
        display: none;
    }
    
    .hero-about-cards {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .hero-card {
        padding: 1.5rem;
    }
    
    .hero-features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 2rem;
    }
    
    .hero-feature-card {
        padding: 1.5rem;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-stat-item {
        padding: 1.5rem;
    }
    
    .hero-stat-item .stat-number {
        font-size: 1.8rem;
    }
    
    .team-member-modal {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1rem;
        padding: 1.5rem;
    }
    
    .member-avatar-modal {
        margin: 0 auto;
        width: 120px;
        height: 120px;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .section-header {
        margin-bottom: 2rem;
    }
    
    .floating-card {
        display: none;
    }
    
    .modal-content {
        width: 95%;
        margin: 5% auto;
        max-height: 85vh;
    }
    
    .modal-header {
        padding: 1.5rem;
    }
    
    .modal-header h2 {
        font-size: 1.5rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .team-member {
        padding: 1.5rem;
    }
    
    .member-avatar {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .nav-container {
        padding: 0 10px;
    }
    
    .nav-logo-center h2 {
        font-size: 1.3rem;
    }
    
    .hero {
        padding: 70px 0 20px;
    }
    
    .hero-container {
        padding: 0 10px;
    }
    
    .hero-title-center {
        font-size: 2rem;
        line-height: 1.1;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .hero-stat-item {
        padding: 1.2rem;
    }
    
    .hero-stat-item .stat-number {
        font-size: 1.5rem;
    }
    
    .hero-card {
        padding: 1.2rem;
    }
    
    .hero-card h3 {
        font-size: 1.2rem;
    }
    
    .carousel-wrapper {
        height: 300px;
    }
    
    .carousel-icon svg {
        width: 120px;
        height: 120px;
    }
    
    .carousel-text h2 {
        font-size: 1.5rem;
    }
    
    .carousel-text p {
        font-size: 0.9rem;
    }
    
    .carousel-btn {
        width: 36px;
        height: 36px;
        font-size: 1.3rem;
    }
    
    .hero-features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .hero-feature-card {
        padding: 1.2rem;
    }
    
    .hero-feature-icon {
        width: 50px;
        height: 50px;
    }
    
    .hero-feature-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .team-member {
        padding: 1.2rem;
    }
    
    .member-avatar {
        width: 80px;
        height: 80px;
    }
    
    .contact-form {
        padding: 1.2rem;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 12px 15px;
        font-size: 0.95rem;
    }
    
    .modal-content {
        width: 98%;
        margin: 2% auto;
        max-height: 95vh;
    }
    
    .modal-header {
        padding: 1rem;
    }
    
    .modal-header h2 {
        font-size: 1.3rem;
    }
    
    .modal-body {
        padding: 1rem;
    }
    
    .team-member-modal {
        padding: 1rem;
    }
    
    .member-avatar-modal {
        width: 100px;
        height: 100px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .tab-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .roadmap-item {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .roadmap-date {
        padding: 1rem;
        font-size: 0.9rem;
    }
    
    .roadmap-content {
        padding: 1.5rem;
    }
    
    .vision-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .vision-card {
        padding: 1.5rem;
    }
    
    .investment-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .investment-item {
        padding: 1.5rem;
    }
    
    .investment-amount {
        font-size: 2rem;
    }
}

/* 滚动行为 */
html {
    scroll-behavior: smooth;
}

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

.feature-card,
.team-member {
    animation: fadeInUp 0.6s ease-out;
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 2% auto;
    padding: 0;
    border-radius: 8px;
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease-out;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 32px;
    border-bottom: 1px solid #e5e7eb;
    background: #fff;
    color: #000;
    border-radius: 8px 8px 0 0;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
}

.close {
    color: #999;
    font-size: 1.8rem;
    font-weight: normal;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: #000;
}

.modal-body {
    padding: 32px;
}

.team-grid-modal {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.team-member-modal {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 2rem;
    padding: 2rem;
    background: #f8fafc;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.team-member-modal:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.member-avatar-modal {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid #4F46E5;
}

.member-avatar-modal img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.member-info-modal h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.member-info-modal .member-role {
    color: #4F46E5;
    font-weight: 500;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.member-info-modal .member-description {
    color: #64748b;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.member-details {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.member-details p {
    margin-bottom: 0.5rem;
    color: #64748b;
}

.member-details strong {
    color: #1e293b;
}

/* 详细项目简介样式 - 华为云风格 */
.about-detailed {
    padding: 80px 0;
    background: #fff;
    position: relative;
}

.about-content-detailed {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-main {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.about-section h3 {
    font-size: 1.6rem;
    font-weight: 600;
    color: #000;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 12px;
    border-bottom: 2px solid #e5e7eb;
}

.about-section h3::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: #0066cc;
}

.about-section p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.value-item {
    text-align: center;
    padding: 24px;
    background: #fff;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    position: relative;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.value-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.12);
    border-color: #0066cc;
}

.value-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #0066cc, #0080ff);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.value-icon svg {
    width: 24px;
    height: 24px;
    color: white;
    stroke-width: 2;
}

.value-item h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: #000;
    margin-bottom: 0.5rem;
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.tech-category h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background: #f0f5ff;
    color: #0066cc;
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 400;
    border: 1px solid #d6e4ff;
    transition: all 0.3s ease;
}

.tech-tag:hover {
    background: #0066cc;
    color: white;
    border-color: #0066cc;
}

.about-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.milestone-card,
.stats-card {
    background: #fff;
    padding: 24px;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    position: relative;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.milestone-card h4,
.stats-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #000;
    margin-bottom: 1.5rem;
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.timeline-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.timeline-date {
    background: #f0f5ff;
    color: #0066cc;
    padding: 6px 16px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    border: 1px solid #d6e4ff;
}

.timeline-content {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    border-bottom: 1px solid #e2e8f0;
}

.stat-row:last-child {
    border-bottom: none;
}

.stat-label {
    color: #64748b;
    font-size: 0.9rem;
}

.stat-value {
    color: #0066cc;
    font-weight: 600;
}

/* 详细项目特点样式 - 华为云风格 */
.features-detailed {
    padding: 80px 0;
    background: #fafbfc;
    position: relative;
}

.features-tabs {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.tab-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 32px;
    border: 1px solid #d1d5db;
    background: #fff;
    color: #666;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 400;
    font-size: 0.95rem;
}

.tab-btn.active,
.tab-btn:hover {
    border-color: #0066cc;
    background: #0066cc;
    color: white;
}

.tab-panel {
    display: none;
    background: #fff;
    border-radius: 8px;
    padding: 40px;
    border: 1px solid #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.tab-panel.active {
    display: block;
    animation: fadeInUp 0.5s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.feature-text h3 {
    font-size: 2rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.feature-text p {
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.feature-list {
    list-style: none;
    margin-bottom: 2rem;
}

.feature-list li {
    color: #64748b;
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4F46E5;
    font-weight: bold;
}

.performance-metrics {
    display: flex;
    gap: 2rem;
}

.metric {
    text-align: center;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: #4F46E5;
}

.metric-label {
    font-size: 0.9rem;
    color: #64748b;
}

.security-badges {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.badge {
    background: #10b981;
    color: white;
    padding: 6px 16px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 400;
    border: 1px solid #059669;
    transition: all 0.3s ease;
}

.badge:hover {
    background: #059669;
}

.ai-capabilities {
    display: flex;
    gap: 2rem;
}

.capability {
    text-align: center;
}

.capability-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.capability-name {
    font-size: 0.9rem;
    color: #64748b;
}

.feature-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.performance-chart {
    display: flex;
    gap: 2rem;
    align-items: end;
    height: 200px;
}

.chart-bar {
    width: 60px;
    background: linear-gradient(135deg, #4F46E5, #7C3AED);
    border-radius: 8px 8px 0 0;
    position: relative;
    display: flex;
    align-items: end;
    justify-content: center;
    padding-bottom: 1rem;
}

.bar-label {
    color: white;
    font-size: 0.8rem;
    font-weight: 500;
}

/* 未来规划样式 - 华为云风格 */
.future-planning {
    padding: 80px 0;
    background: #fafbfc;
    position: relative;
}

.roadmap {
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.roadmap-timeline {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    max-width: 800px;
    margin: 0 auto;
}

.roadmap-item {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 2rem;
    align-items: center;
}

.roadmap-date {
    background: #fff;
    color: #0066cc;
    padding: 16px 20px;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid #e5e7eb;
    font-size: 0.9rem;
}

.roadmap-content {
    background: #fff;
    padding: 32px;
    border-radius: 8px;
    border-left: 4px solid #0066cc;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    position: relative;
    border: 1px solid #e5e7eb;
}

.roadmap-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #000;
    margin-bottom: 1rem;
}

.roadmap-content p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.roadmap-features {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.feature-tag {
    background: #f0f5ff;
    color: #0066cc;
    padding: 6px 16px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 400;
    border: 1px solid #d6e4ff;
    transition: all 0.3s ease;
}

.feature-tag:hover {
    background: #0066cc;
    color: white;
    border-color: #0066cc;
}

.future-vision {
    margin-bottom: 4rem;
}

.vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.vision-card {
    background: #fff;
    padding: 32px;
    border-radius: 8px;
    text-align: center;
    border: 1px solid #e5e7eb;
    position: relative;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.vision-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.12);
    border-color: #0066cc;
}

.vision-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #0066cc, #0080ff);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.vision-icon svg {
    width: 28px;
    height: 28px;
    color: white;
    stroke-width: 2;
}

.vision-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #000;
    margin-bottom: 1rem;
}

.vision-card p {
    color: #666;
    line-height: 1.7;
    font-size: 0.9rem;
}

.investment-plan h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 2rem;
    text-align: center;
}

.investment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.investment-item {
    text-align: center;
    padding: 32px;
    background: #fff;
    border-radius: 8px;
    color: #000;
    border: 1px solid #e5e7eb;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
    position: relative;
}

.investment-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.12);
    border-color: #0066cc;
}

.investment-amount {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #0066cc;
}

.investment-category {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #000;
}

.investment-description {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.6;
}

/* 响应式设计更新 */
@media (max-width: 768px) {
    .about-content-detailed {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .value-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .tech-stack {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .feature-detail {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .performance-metrics {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .roadmap-item {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .roadmap-date {
        text-align: center;
        padding: 1rem;
        font-size: 0.9rem;
    }
    
    .tab-nav {
        flex-direction: column;
        align-items: center;
        gap: 0.8rem;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .tab-panel {
        padding: 2rem 1.5rem;
    }
    
    .ai-capabilities {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .security-badges {
        justify-content: center;
    }
    
    .performance-chart {
        gap: 1rem;
        height: 150px;
    }
    
    .chart-bar {
        width: 40px;
    }
    
    .about-section {
        margin-bottom: 2rem;
    }
    
    .milestone-card,
    .stats-card {
        padding: 1.5rem;
    }
    
    .timeline-item {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }
    
    .timeline-date {
        align-self: center;
    }
}

/* 额外的小屏幕优化 */
@media (max-width: 360px) {
    .hero-title-center {
        font-size: 1.8rem;
    }
    
    .nav-logo-center h2 {
        font-size: 1.2rem;
    }
    
    .hero-card,
    .hero-feature-card,
    .hero-stat-item {
        padding: 1rem;
    }
    
    .modal-content {
        width: 100%;
        margin: 0;
        border-radius: 0;
        max-height: 100vh;
    }
    
    .roadmap-content {
        padding: 1.2rem;
    }
    
    .vision-card {
        padding: 1.2rem;
    }
    
    .investment-item {
        padding: 1.2rem;
    }
    
    .contact-form {
        padding: 1rem;
    }
}

/* 内容弹窗样式 */
.content-section {
    padding: 1rem 0;
}

.content-section h3 {
    color: #4F46E5;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid #e0e7ff;
    padding-bottom: 0.5rem;
}

.content-section h4 {
    color: #1e293b;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.content-section p {
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.content-section ul {
    color: #64748b;
    line-height: 1.7;
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.feature-list, .feature-grid, .security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.feature-item, .feature-box, .security-item {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 12px;
    border-left: 4px solid #4F46E5;
}

.feature-item h4, .feature-box h4, .security-item h4 {
    color: #4F46E5;
    margin-bottom: 0.8rem;
}

.timeline-content {
    margin: 1.5rem 0;
}

.timeline-item {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    border-left: 4px solid #7C3AED;
}

.timeline-item h4 {
    color: #7C3AED;
    margin-bottom: 0.5rem;
}

.team-structure {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.team-role {
    background: #f8fafc;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    border: 2px solid #e0e7ff;
}

.team-role h4 {
    color: #4F46E5;
    margin-bottom: 0.8rem;
}

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

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* 移动端触摸优化 */
@media (max-width: 768px) {
    /* 增大可点击区域 */
    .nav-link {
        padding: 1rem;
        display: block;
    }
    
    .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .close {
        padding: 1rem;
        min-height: 44px;
        min-width: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .hamburger {
        padding: 1rem;
        min-height: 44px;
        min-width: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* 防止文本选择 */
    .nav-menu,
    .hamburger,
    .btn,
    .tab-btn {
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }
    
    /* 移动端卡片悬停效果调整 */
    .hero-card:hover,
    .hero-feature-card:hover,
    .vision-card:hover {
        transform: none;
    }
    
    .hero-card:active,
    .hero-feature-card:active,
    .vision-card:active {
        transform: scale(0.98);
    }
    
    /* 移动端表单优化 */
    .form-group input,
    .form-group textarea {
        font-size: 16px; /* 防止iOS缩放 */
    }
    
    /* 移动端导航菜单滚动 */
    .nav-menu {
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }
    
    /* 移动端模态框优化 */
    .modal {
        padding: 0;
    }
    
    .modal-content {
        border-radius: 20px 20px 0 0;
        margin-top: auto;
        margin-bottom: 0;
    }
}

/* 横屏模式优化 */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        padding: 60px 0 20px;
        min-height: auto;
    }
    
    .hero-title-center {
        font-size: 2rem;
    }
    
    .modal-content {
        max-height: 90vh;
        margin: 5vh auto;
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero-feature-icon svg,
    .vision-icon svg {
        stroke-width: 1.5;
    }
}