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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background: linear-gradient(135deg, #0f1629 0%, #1a2744 25%, #2a3c65 50%, #3d5087 75%, #5063a8 100%);
    background-attachment: fixed;
    min-height: 100vh;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 22, 41, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #4fc3f7;
    text-decoration: none;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 25px;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #4fc3f7;
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: #4fc3f7;
}

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

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

/* 英雄区域 */
.app {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 100px 20px 50px;
}

.app-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    z-index: 2;
}

.app-text {
    animation: fadeInUp 1s ease-out;
}

.greeting {
    display: block;
    font-size: 1.2rem;
    color: #4fc3f7;
    margin-bottom: 10px;
    font-weight: 400;
}

.name {
    display: block;
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 0%, #4fc3f7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.app-subtitle {
    font-size: 1.2rem;
    color: #b0bec5;
    margin-bottom: 30px;
    line-height: 1.6;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn i {
    margin-right: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #4fc3f7 0%, #29b6f6 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(79, 195, 247, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 195, 247, 0.6);
}

.btn-secondary {
    background: transparent;
    color: #4fc3f7;
    border: 2px solid #4fc3f7;
}

.btn-secondary:hover {
    background: #4fc3f7;
    color: #ffffff;
    transform: translateY(-2px);
}

.app-image {
    display: flex;
    justify-content: center;
    animation: fadeInRight 1s ease-out 0.3s both;
}

.company-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.company-logo {
    margin-bottom: 20px;
}

.company-logo i {
    font-size: 80px;
    color: #4fc3f7;
}

.company-info h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #ffffff;
}

.company-info p {
    color: #b0bec5;
    margin-bottom: 20px;
}

.company-stats {
    display: flex;
    justify-content: space-around;
    gap: 15px;
}

.stat {
    text-align: center;
}

.stat .number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: #4fc3f7;
    line-height: 1;
}

.stat .label {
    font-size: 0.8rem;
    color: #b0bec5;
}

/* 背景动画元素 */
.app-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.element {
    position: absolute;
    background: rgba(79, 195, 247, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.element-1 {
    width: 60px;
    height: 60px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.element-2 {
    width: 80px;
    height: 80px;
    top: 60%;
    left: 80%;
    animation-delay: 1s;
}

.element-3 {
    width: 40px;
    height: 40px;
    top: 80%;
    left: 20%;
    animation-delay: 2s;
}

.element-4 {
    width: 100px;
    height: 100px;
    top: 30%;
    left: 70%;
    animation-delay: 3s;
}

.element-5 {
    width: 50px;
    height: 50px;
    top: 70%;
    left: 50%;
    animation-delay: 4s;
}

/* 区域通用样式 */
section {
    padding: 100px 0;
}

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

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 0%, #4fc3f7 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #b0bec5;
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们 */
.about {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #4fc3f7;
}

.about-text p {
    color: #b0bec5;
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-highlights {
    margin-top: 30px;
}

.highlight {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    color: #ffffff;
}

.highlight i {
    color: #4fc3f7;
    margin-right: 15px;
    font-size: 1.2rem;
}

.about-image {
    display: flex;
    justify-content: center;
}

.image-container {
    position: relative;
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.tech-item:hover {
    transform: translateY(-5px);
}

.tech-item i {
    font-size: 2.5rem;
    color: #4fc3f7;
    margin-bottom: 10px;
}

.tech-item span {
    font-size: 0.9rem;
    color: #ffffff;
    font-weight: 500;
}

/* 企业愿景 */
.vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.vision-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    transition: transform 0.3s ease;
}

.vision-card:hover {
    transform: translateY(-5px);
}

.vision-icon {
    margin-bottom: 20px;
}

.vision-icon i {
    font-size: 3rem;
    color: #4fc3f7;
}

.vision-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #ffffff;
}

.vision-content p {
    color: #b0bec5;
    margin-bottom: 20px;
    line-height: 1.6;
}

.vision-points {
    list-style: none;
    text-align: left;
}

.vision-points li {
    color: #b0bec5;
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

.vision-points li::before {
    content: '•';
    color: #4fc3f7;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 服务产品 */
.services {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.service-category {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.service-category h3 {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: #4fc3f7;
    text-align: center;
}

.service-item {
    margin-bottom: 25px;
}

.service-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.service-name {
    font-weight: 600;
    color: #ffffff;
}

.service-level {
    font-weight: 600;
    color: #4fc3f7;
}

.service-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.service-progress {
    height: 100%;
    background: linear-gradient(90deg, #4fc3f7 0%, #29b6f6 100%);
    border-radius: 4px;
    transition: width 2s ease;
}

/* 核心价值 */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.value-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
    transition: transform 0.3s ease;
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(79, 195, 247, 0.2);
}

.value-icon {
    margin-bottom: 20px;
}

.value-icon i {
    font-size: 2.5rem;
    color: #4fc3f7;
}

.value-content h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #ffffff;
}

.value-content p {
    color: #b0bec5;
    margin-bottom: 20px;
    line-height: 1.6;
}

.value-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.feature-tag {
    background: rgba(79, 195, 247, 0.2);
    color: #4fc3f7;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* 成功案例 */
.cases {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.case-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.case-image {
    height: 200px;
    background: linear-gradient(135deg, #4fc3f7 0%, #29b6f6 100%);
    position: relative;
    overflow: hidden;
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-card:hover .case-overlay {
    opacity: 1;
}

.case-links {
    display: flex;
    gap: 20px;
}

.case-link {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    text-decoration: none;
    transition: all 0.3s ease;
}

.case-link:hover {
    background: #4fc3f7;
    transform: scale(1.1);
}

.case-content {
    padding: 30px;
}

.case-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #ffffff;
}

.case-content p {
    color: #b0bec5;
    margin-bottom: 20px;
    line-height: 1.6;
}

.case-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.tech-tag {
    background: rgba(79, 195, 247, 0.2);
    color: #4fc3f7;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.case-results {
    display: flex;
    gap: 20px;
    justify-content: space-between;
}

.result-item {
    text-align: center;
    flex: 1;
}

.result-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #4fc3f7;
    line-height: 1;
}

.result-label {
    font-size: 0.9rem;
    color: #b0bec5;
    margin-top: 5px;
}

/* 联系我们 */
.contact-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #4fc3f7;
}

.contact-info {
    text-align: center;
}

.contact-info p {
    color: #b0bec5;
    margin-bottom: 30px;
    line-height: 1.6;
}

.contact-items {
    margin-bottom: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-item i {
    font-size: 1.5rem;
    color: #4fc3f7;
    margin-right: 20px;
    width: 30px;
    text-align: center;
}

.contact-text h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: #ffffff;
}

.contact-text p {
    color: #b0bec5;
    margin: 0;
}

.social-links {
    display: flex;
    gap: 15px;
    justify-content: center;
    align-items: center;
}

.social-link {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4fc3f7;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #4fc3f7;
    color: #ffffff;
    transform: translateY(-3px);
}

.contact-form {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: #4fc3f7;
    text-align: center;
}

.form-group {
    position: relative;
    margin-bottom: 30px;
}

.form-input {
    width: 100%;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: #ffffff;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: #4fc3f7;
    box-shadow: 0 0 0 3px rgba(79, 195, 247, 0.2);
}

.form-input::placeholder {
    color: #b0bec5;
}

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

.form-label {
    position: absolute;
    top: -10px;
    left: 20px;
    background: #1a2744;
    padding: 0 10px;
    color: #4fc3f7;
    font-size: 0.9rem;
    font-weight: 500;
}

/* 页脚 */
.footer {
    background: rgba(15, 22, 41, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #4fc3f7;
}

.footer-section p {
    color: #b0bec5;
    line-height: 1.6;
    margin-bottom: 20px;
}

.footer-stats {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.footer-stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: #4fc3f7;
    line-height: 1;
}

.stat-label {
    font-size: 0.8rem;
    color: #b0bec5;
}

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

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

.footer-links a {
    color: #b0bec5;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #4fc3f7;
}

.footer-contact {
    margin-bottom: 20px;
}

.footer-contact p {
    color: #b0bec5;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.footer-contact i {
    margin-right: 10px;
    width: 20px;
    color: #4fc3f7;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #b0bec5;
}

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

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

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

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(15, 22, 41, 0.95);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 30px 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 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);
    }
    
    .app-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .name {
        font-size: 2.5rem;
    }
    
    .app-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .tech-stack {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .vision-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-stats {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .app {
        padding: 100px 15px 50px;
    }
    
    .name {
        font-size: 2rem;
    }
    
    .app-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .tech-stack {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .company-stats {
        flex-direction: column;
        gap: 10px;
    }
    
    .case-results {
        flex-direction: column;
        gap: 10px;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .footer-stats {
        flex-direction: column;
        gap: 15px;
    }
    
    .vision-card,
    .service-category,
    .value-card {
        padding: 25px;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
    background: #4fc3f7;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #29b6f6;
}

/* 选择文本样式 */
::selection {
    background: rgba(79, 195, 247, 0.3);
    color: #ffffff;
}

/* 焦点样式 */
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid #4fc3f7;
    outline-offset: 2px;
}