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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    color: #e0e0e0;
    line-height: 1.6;
    background-color: #121212;
    overflow-x: hidden;
}

/* 容器样式 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 500;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    text-align: center;
    white-space: nowrap;
}

.btn.primary {
    background: linear-gradient(135deg, #1a73e8 0%, #1557b0 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(26, 115, 232, 0.3);
}

.btn.primary:hover {
    background: linear-gradient(135deg, #1557b0 0%, #0d47a1 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 115, 232, 0.4);
}

.btn.secondary {
    background: transparent;
    color: #1a73e8;
    border: 2px solid #1a73e8;
}

.btn.secondary:hover {
    background: #1a73e8;
    color: white;
}

/* 下载按钮特定样式 */
.downlbtnvmmn {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: white;
    font-weight: 600;
    padding: 15px 40px;
    border-radius: 50px;
    box-shadow: 0 8px 25px rgba(26, 115, 232, 0.4);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.downlbtnvmmn:hover {
    background: linear-gradient(135deg, #0d47a1 0%, #0a3c85 100%);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(26, 115, 232, 0.6);
}

.downlbtnvmmn:active {
    transform: translateY(-1px);
}

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

.downlbtnvmmn:hover::before {
    left: 100%;
}

/* 导航栏样式 */
.navbar {
    background: rgba(18, 18, 18, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    padding: 20px 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    padding: 15px 0;
    background: rgba(18, 18, 18, 0.98);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.4);
}

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

.navbar .logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: #1a73e8;
    margin: 0;
    display: flex;
    align-items: center;
}

.navbar .logo h1 i {
    margin-right: 10px;
}

.navbar .menu ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.navbar .menu ul li {
    margin-left: 30px;
}

.navbar .menu ul li a {
    color: #e0e0e0;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.navbar .menu ul li a:hover,
.navbar .menu ul li a.active {
    color: #1a73e8;
}

.navbar .menu ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #1a73e8;
    transition: all 0.3s ease;
}

.navbar .menu ul li a:hover::after,
.navbar .menu ul li a.active::after {
    width: 100%;
}

.navbar .download-btn {
    margin-left: 30px;
}

.navbar .mobile-menu-btn {
    display: none;
    font-size: 24px;
    color: #333;
    cursor: pointer;
}

/* 英雄区域样式 */
.hero {
    padding: 150px 0 100px;
    background: linear-gradient(135deg, #1e1e1e 0%, #0d0d0d 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/hero-pattern.png') repeat;
    opacity: 0.05;
    z-index: 0;
}

.hero .container {
    display: flex;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    padding-right: 50px;
}

.hero-content h2 {
    font-size: 48px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 20px;
    color: #b0b0b0;
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.statistics {
    display: flex;
    gap: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.stat-item .number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: #1a73e8;
    margin-bottom: 10px;
}

.stat-item .text {
    font-size: 16px;
    color: #b0b0b0;
}

.hero-image {
    flex: 1;
    position: relative;
}

.hero-image .main-image {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    animation: float 6s ease-in-out infinite;
}

.hero-image .floating-image1,
.hero-image .floating-image2 {
    position: absolute;
    width: 30%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hero-image .floating-image1 {
    top: -50px;
    right: -30px;
    animation: float 4s ease-in-out infinite reverse;
}

.hero-image .floating-image2 {
    bottom: -30px;
    left: -30px;
    animation: float 5s ease-in-out infinite;
}

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

/* 通用section样式 */
.features,
.advantages,
.scenarios,
.cases,
.faq,
.contact {
    padding: 100px 0;
}

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

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
    border-radius: 2px;
}

.section-header p {
    font-size: 18px;
    color: #b0b0b0;
    max-width: 800px;
    margin: 0 auto;
}

/* 功能特点样式 */
.features {
    background: #1a1a1a;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-item {
    background: #242424;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: #1a73e8;
}

.feature-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #1c2938 0%, #111827 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    transition: all 0.3s ease;
}

.feature-item:hover .feature-icon {
    background: linear-gradient(135deg, #111827 0%, #030712 100%);
    transform: scale(1.1);
}

.feature-icon i {
    font-size: 36px;
    color: #1a73e8;
}

.feature-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 15px;
}

.feature-item p {
    font-size: 16px;
    color: #b0b0b0;
    line-height: 1.6;
}

/* 产品优势样式 */
.advantages {
    background: #242424;
}

.advantages-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.advantage-image {
    flex: 1;
}

.advantage-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.advantage-list {
    flex: 1;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: #1a1a1a;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.advantage-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: #1c2938;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 5px;
}

.advantage-icon i {
    font-size: 24px;
    color: #1a73e8;
}

.advantage-text h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 10px;
}

.advantage-text p {
    font-size: 16px;
    color: #b0b0b0;
    line-height: 1.6;
}

/* 应用场景样式 */
.scenarios {
    background: #1a1a1a;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.scenario-item {
    background: #242424;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
}

.scenario-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: white;
}

.scenario-image {
    width: 100px;
    height: 100px;
    background: #1c2938;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 30px;
    transition: all 0.3s ease;
}

.scenario-item:hover .scenario-image {
    background: rgba(255, 255, 255, 0.2);
}

.scenario-image i {
    font-size: 48px;
    color: #1a73e8;
    transition: all 0.3s ease;
}

.scenario-item:hover .scenario-image i {
    color: white;
    transform: scale(1.1);
}

.scenario-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.scenario-item:hover h3 {
    color: white;
}

.scenario-item p {
    font-size: 16px;
    color: #b0b0b0;
    line-height: 1.6;
    transition: all 0.3s ease;
}

.scenario-item:hover p {
    color: rgba(255, 255, 255, 0.9);
}

/* 成功案例样式 */
.cases {
    background: #242424;
}

.cases-slider {
    position: relative;
    overflow: hidden;
}

.case-item {
    background: #1a1a1a;
    padding: 50px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    text-align: center;
}

.case-content h3 {
    font-size: 24px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 20px;
}

.case-content p {
    font-size: 18px;
    color: #b0b0b0;
    line-height: 1.6;
    margin-bottom: 30px;
    max-width: 800px;
    margin: 0 auto 30px;
}

.case-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.case-stats span {
    font-size: 18px;
    font-weight: 600;
    color: #1a73e8;
}

/* 常见问题样式 */
.faq {
    background: #1a1a1a;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 20px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.faq-question {
    background: #242424;
    padding: 20px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: #2d2d2d;
}

.faq-question h3 {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    margin: 0;
}

.faq-question i {
    font-size: 18px;
    color: #1a73e8;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    background: #2d2d2d;
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 500px;
}

.faq-answer p {
    font-size: 16px;
    color: #b0b0b0;
    line-height: 1.6;
    margin: 0;
}

/* 下载区域样式 */
.download {
    background: linear-gradient(135deg, #0d47a1 0%, #05264c 100%);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/download-pattern.png') repeat;
    opacity: 0.1;
    z-index: 0;
}

.download-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.download-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
}

.download-content p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.download-buttons .btn {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 200px;
}

.download-notes {
    font-size: 16px;
    opacity: 0.8;
}

.download-notes i {
    margin-right: 10px;
}

/* 联系我们样式 */
.contact-content {
    display: flex;
    gap: 60px;
}

.contact-info {
    flex: 1;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: #242424;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    background: #2d2d2d;
}

.contact-item i {
    font-size: 32px;
    color: #1a73e8;
}

.contact-text h3 {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 5px;
}

.contact-text p {
    font-size: 16px;
    color: #b0b0b0;
    margin: 0;
}

.contact-form {
    flex: 1;
    background: #242424;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.contact-form h3 {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4CAF50;
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

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

.contact-form .btn {
    width: 100%;
    margin-top: 10px;
}

/* 页脚样式 */
.footer {
    background: #333;
    color: white;
    padding: 80px 0 40px;
}

.footer-content {
    position: relative;
}

.footer-info {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo h2 {
    font-size: 24px;
    font-weight: 700;
    color: white;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.footer-logo h2 i {
    margin-right: 10px;
    color: #4CAF50;
}

.footer-logo p {
    font-size: 16px;
    color: #ddd;
    line-height: 1.6;
}

.footer-links h3,
.footer-support h3,
.footer-social h3 {
    font-size: 18px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h3::after,
.footer-support h3::after,
.footer-social h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: #4CAF50;
    border-radius: 2px;
}

.footer-links ul,
.footer-support ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.footer-links ul li,
.footer-support ul li {
    margin-bottom: 15px;
}

.footer-links ul li a,
.footer-support ul li a {
    color: #ddd;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
}

.footer-links ul li a:hover,
.footer-support ul li a:hover {
    color: #4CAF50;
    padding-left: 10px;
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    font-size: 20px;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    background: #4CAF50;
    transform: translateY(-5px);
}

.qrcode {
    text-align: center;
}

.qrcode img {
    width: 120px;
    height: 120px;
    border-radius: 10px;
    margin-bottom: 10px;
}

.qrcode p {
    font-size: 14px;
    color: #ddd;
    margin: 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright p {
    font-size: 14px;
    color: #ddd;
    margin: 0;
}

.footer-terms {
    display: flex;
    gap: 20px;
}

.footer-terms a {
    font-size: 14px;
    color: #ddd;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-terms a:hover {
    color: #4CAF50;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hero-content h2 {
        font-size: 42px;
    }
    
    .advantages-content {
        gap: 40px;
    }
    
    .contact-content {
        gap: 40px;
    }
    
    .footer-info {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .navbar .menu {
        display: none;
    }
    
    .navbar .mobile-menu-btn {
        display: block;
    }
    
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 50px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .statistics {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantages-content {
        flex-direction: column;
    }
    
    .advantage-image {
        order: 2;
    }
    
    .advantage-list {
        order: 1;
    }
    
    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        flex-direction: column;
    }
    
    .footer-info {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 36px;
    }
    
    .hero-content p {
        font-size: 18px;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .download-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .footer-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero-content h2 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .statistics {
        flex-direction: column;
        gap: 20px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .section-header p {
        font-size: 16px;
    }
    
    .feature-item,
    .scenario-item {
        padding: 30px;
    }
    
    .case-item {
        padding: 30px;
    }
    
    .case-content h3 {
        font-size: 20px;
    }
    
    .case-content p {
        font-size: 16px;
    }
    
    .case-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .download-content h2 {
        font-size: 32px;
    }
    
    .download-content p {
        font-size: 18px;
    }
    
    .contact-form {
        padding: 30px;
    }
}

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

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

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

.animate-fadeInUp {
    animation: fadeInUp 0.8s ease forwards;
}

.animate-slideInLeft {
    animation: slideInLeft 0.8s ease forwards;
}

.animate-slideInRight {
    animation: slideInRight 0.8s ease forwards;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(76, 175, 80, 0.3);
    border-radius: 50%;
    border-top-color: #4CAF50;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #4CAF50;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.3);
}

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

.back-to-top:hover {
    background: #3d8b40;
    transform: translateY(-5px);
}