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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #0a0a1a;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* 导航栏样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 24px;
    font-weight: bold;
    color: #fff;
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-menu li a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    transition: color 0.3s ease;
    padding: 8px 0;
}

.nav-menu li a:hover {
    color: #1e90ff;
}

.btn-primary {
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 100%);
    color: #fff !important;
    padding: 10px 24px !important;
    border-radius: 25px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(30, 144, 255, 0.4);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: #fff;
    transition: all 0.3s ease;
}

/* Banner区域 */
.banner {
    min-height: 100vh;
    background: url('../img/banner.jpg') center center / cover no-repeat;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 20px 60px;
    position: relative;
    overflow: hidden;
}

.banner::before {
    display: none;
}

.banner-content {
    position: relative;
    z-index: 1;
    margin-bottom: 60px;
}

.banner-subtitle {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    font-weight: 400;
}

.banner-title {
    font-size: 48px;
    color: #fff;
    font-weight: bold;
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 50%, #87ceeb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.banner-image {
    position: relative;
    z-index: 1;
}

.banner-placeholder {
    width: 800px;
    max-width: 90vw;
    height: 400px;
    background: linear-gradient(135deg, rgba(30, 144, 255, 0.2) 0%, rgba(0, 191, 255, 0.2) 100%);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 公司简介区域 */
.intro-section {
    background: url('../img/bg-2.jpg') center center / cover no-repeat;
    padding: 100px 0;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 40px;
    align-items: center;
}

.intro-logo .logo-placeholder {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, rgba(30, 144, 255, 0.3) 0%, rgba(0, 191, 255, 0.3) 100%);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.intro-text p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 18px;
    line-height: 1.8;
}

.intro-video .video-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, rgba(30, 144, 255, 0.2) 0%, rgba(0, 191, 255, 0.2) 100%);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.intro-video .video-placeholder:hover {
    transform: scale(1.02);
}

.play-btn {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 100%);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 20px;
    box-shadow: 0 10px 30px rgba(30, 144, 255, 0.4);
}

/* 产品介绍区域 */
.product-section {
    background: url('../img/bg-2.jpg') center center / cover no-repeat;
    padding: 100px 0;
}

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

.decoration-line {
    width: 60px;
    height: 4px;
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 100%);
    margin: 0 auto 20px;
    border-radius: 2px;
}

.section-title {
    font-size: 36px;
    color: #fff;
    font-weight: bold;
}

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

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(30, 144, 255, 0.2);
    border-color: rgba(30, 144, 255, 0.3);
}

.feature-number {
    font-size: 48px;
    font-weight: bold;
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 20px;
}

.feature-card h3 {
    color: #fff;
    font-size: 20px;
    margin-bottom: 10px;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 16px;
}

.feature-video {
    grid-column: span 3;
}

.feature-video .video-placeholder.large {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, rgba(30, 144, 255, 0.2) 0%, rgba(0, 191, 255, 0.2) 100%);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

/* 试用申请区域 */
.trial-section {
    background: url('../img/apply-for-bg.jpg') center center / cover no-repeat;
    padding: 100px 0;
    position: relative;
}

.trial-section::before {
    display: none;
}

.trial-form {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group input {
    width: 100%;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: #fff;
    font-size: 16px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

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

.form-group input:focus {
    outline: none;
    border-color: #1e90ff;
    box-shadow: 0 0 20px rgba(30, 144, 255, 0.2);
}

.captcha-group {
    display: flex;
    gap: 10px;
}

.captcha-group input {
    flex: 1;
}

.captcha-image {
    width: 120px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    cursor: pointer;
}

.btn-submit {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 100%);
    border: none;
    border-radius: 10px;
    color: #fff;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(30, 144, 255, 0.4);
}

/* 服务介绍区域 */
.services-section {
    background: url('../img/bg-2.jpg') center center / cover no-repeat;
    padding: 100px 0;
}

.service-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 50px;
    margin-bottom: 40px;
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 100%);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 32px;
    color: #fff;
    flex-shrink: 0;
}

.service-content h3 {
    color: #fff;
    font-size: 22px;
    margin-bottom: 15px;
}

.service-content > p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
    margin-bottom: 25px;
    line-height: 1.8;
}

.service-features {
    margin-bottom: 30px;
}

.service-features li {
    color: rgba(255, 255, 255, 0.8);
    font-size: 15px;
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
}

.service-features li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #1e90ff;
}

.service-features li strong {
    color: #fff;
}

.btn-contact {
    display: inline-block;
    padding: 12px 30px;
    background: transparent;
    border: 2px solid #1e90ff;
    border-radius: 25px;
    color: #1e90ff;
    font-size: 16px;
    transition: all 0.3s ease;
}

.btn-contact:hover {
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 100%);
    border-color: transparent;
    color: #fff;
}

/* 关于我们区域 */
.about-section {
    background: url('../img/bg-2.jpg') center center / cover no-repeat;
    padding: 100px 0;
}

.about-intro {
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 18px;
    max-width: 900px;
    margin: 0 auto 60px;
    line-height: 1.8;
}

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

.about-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: transform 0.3s ease;
}

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

.about-card h3 {
    color: #fff;
    font-size: 22px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-card p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    line-height: 1.8;
}

.about-card p strong {
    color: #fff;
    display: block;
    margin-bottom: 10px;
}

/* 发展历程区域 */
.timeline-section {
    background: url('../img/flow-bg.jpg') center center / cover no-repeat;
    padding: 100px 0;
}

.timeline-subtitle {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 16px;
    margin-bottom: 10px;
}

.timeline-heading {
    text-align: center;
    color: #fff;
    font-size: 28px;
    margin-bottom: 60px;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 50px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #1e90ff 0%, #00bfff 100%);
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 40px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -38px;
    top: 5px;
    width: 16px;
    height: 16px;
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 100%);
    border-radius: 50%;
    box-shadow: 0 0 20px rgba(30, 144, 255, 0.5);
}

.timeline-date {
    color: #1e90ff;
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
}

.timeline-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 16px;
}

/* 新闻区域 */
.news-section {
    background: url('../img/bg-2.jpg') center center / cover no-repeat;
    padding: 100px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.news-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(30, 144, 255, 0.2);
}

.news-image .image-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, rgba(30, 144, 255, 0.2) 0%, rgba(0, 191, 255, 0.2) 100%);
}

.news-content {
    padding: 25px;
}

.news-date {
    color: #1e90ff;
    font-size: 14px;
    margin-bottom: 10px;
}

.news-content h3 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 15px;
    line-height: 1.5;
}

.news-content p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    line-height: 1.7;
}

.news-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.news-nav-btn {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
}

.news-nav-btn:hover {
    background: linear-gradient(135deg, #1e90ff 0%, #00bfff 100%);
    border-color: transparent;
}

/* 合作伙伴区域 */
.partner-section {
    background: url('../img/bg-2.jpg') center center / cover no-repeat;
    padding: 100px 0;
}

.partner-logos {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.partner-logo {
    transition: transform 0.3s ease;
}

.partner-logo:hover {
    transform: scale(1.05);
}

.logo-placeholder-partner {
    width: 200px;
    height: 80px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* 联系我们区域 */
.contact-section {
    background: url('../img/bg-2.jpg') center center / cover no-repeat;
    padding: 100px 0;
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
}

.contact-item {
    font-size: 18px;
}

.contact-label {
    color: rgba(255, 255, 255, 0.6);
}

.contact-value {
    color: #fff;
}

.contact-value:hover {
    color: #1e90ff;
}

.contact-qr {
    display: flex;
    justify-content: center;
}

.qr-placeholder {
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    text-align: center;
}

/* 页脚 */
.footer {
    background: url('../img/footer-bg.png') center center / cover no-repeat;
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.footer-content p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
    margin-bottom: 10px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .intro-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .intro-logo .logo-placeholder {
        margin: 0 auto;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-video {
        grid-column: span 2;
    }
    
    .about-cards {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 10, 26, 0.98);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .banner-title {
        font-size: 32px;
    }
    
    .banner-subtitle {
        font-size: 16px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-video {
        grid-column: span 1;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        flex-direction: column;
        padding: 30px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .partner-logos {
        gap: 30px;
    }
    
    .logo-placeholder-partner {
        width: 150px;
        height: 60px;
    }
}

@media (max-width: 480px) {
    .banner-title {
        font-size: 26px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .captcha-group {
        flex-direction: column;
    }
    
    .captcha-image {
        width: 100%;
        height: 50px;
    }
}