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

body {
    font-family: 'Arial', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
    background: #282828;
}

/* 左侧边栏样式 */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 280px;
    height: 100vh;
    background: #5C6650;
    z-index: 1000;
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.sidebar-content {
    padding: 30px 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Logo区域 */
.logo-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 30px;
    padding: 0;
}

.logo-icon {
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 0;
    background: none;
}

.logo-image {
    width: 120px;
    height: 120px;
    object-fit: contain;
    filter: none;
}

.logo-text {
    display: none;
}

/* Logo区域添加SUN文本 */
.logo-section::after {
    content: 'SUN';
    display: block;
    font-size: 36px;
    font-weight: bold;
    color: white;
    margin-top: 5px;
    font-family: sans-serif;
    text-align: center;
}

/* 导航菜单 */
.nav-menu {
    flex: 1;
    padding-left: 20px;
    margin-top: 20px;
}

.nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-list li {
    margin-bottom: 8px;
}

.nav-link {
    display: block;
    padding: 12px 0;
    color: white;
    text-decoration: none;
    font-size: 16px;
    font-weight: 400;
    font-family: sans-serif;
    transition: all 0.3s ease;
    border: none;
    background: none;
}

.nav-link:hover,
.nav-link.active {
    color: white;
    transform: none;
    background: none;
}

/* 语言切换 */
.language-switcher {
    margin-top: auto;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
}

.language-switcher::before {
    content: "🌐";
    margin-right: 8px;
    font-size: 14px;
    opacity: 0.7;
}

.lang-btn {
    padding: 6px 10px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 400;
    min-width: 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.lang-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.lang-btn:hover::before {
    left: 100%;
}

.lang-btn.active {
    background: linear-gradient(135deg, #D4B06C 0%, #B8944F 100%);
    border-color: #D4B06C;
    color: #000;
    font-weight: 600;
    box-shadow: 0 3px 12px rgba(212, 176, 108, 0.4);
    transform: translateY(-1px);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1001;
    background: #2c3e50;
    color: white;
    border: none;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    display: none;
}

/* 主内容区域 */
.main-content {
    margin-left: 280px;
    min-height: 100vh;
    position: relative;
    background: transparent;
}

/* 视频背景 */
.video-background {
    position: fixed;
    top: 0;
    left: 280px;
    width: calc(100vw - 280px);
    height: 100vh;
    z-index: 0;
    overflow: hidden;
}

.video-background video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(40, 40, 40, 0.3);
    z-index: 1;
}

/* 主内容内部 */
.main-content-inner {
    position: relative;
    z-index: 2;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    padding: 0 20px;
}

.content-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.slogan {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
    line-height: 1.8;
}

.main-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 40px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.learn-more-btn {
    background: linear-gradient(45deg, #f39c12, #e67e22);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 18px;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
}

.learn-more-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(243, 156, 18, 0.4);
}

/* 公司简介内容 */
.company-profile-content {
    background: rgb(80, 85, 92);
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.profile-section {
    margin-bottom: 80px;
    padding: 0 20px;
}

.profile-section:last-child {
    margin-bottom: 0;
}

.profile-image {
    width: 100%;
    max-width: none;
    height: 400px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.profile-title {
    font-size: 32px;
    color: white;
    margin-bottom: 20px;
    font-weight: bold;
}

.profile-text {
    font-size: 18px;
    color: #e0e0e0;
    line-height: 1.8;
}

/* 调整公司简介部分的布局比例 */
.profile-section .row {
    display: flex;
    align-items: center;
    gap: 40px;
}

.profile-section .col-md-6:first-child {
    flex: 2;
    min-width: 0;
}

.profile-section .col-md-6:last-child {
    flex: 1;
    min-width: 0;
}

/* 投资策略内容 */
.investment-strategy-content {
    background: #282828;
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.strategy-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 0 20px;
}

.strategy-main-title {
    font-size: 36px;
    color: white;
    margin-bottom: 20px;
    font-weight: bold;
}

.strategy-subtitle {
    font-size: 18px;
    color: #ccc;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

.strategy-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    padding: 0 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.strategy-item {
    background: #282828;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    text-align: center;
    transition: transform 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.strategy-image {
    margin-bottom: 20px;
}

.strategy-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
}

.strategy-title {
    font-size: 24px;
    color: white;
    margin-bottom: 15px;
    font-weight: bold;
}

.strategy-text {
    font-size: 16px;
    color: #ccc;
    line-height: 1.6;
}

/* 数字资产投资内容 */
.digital-assets-content {
    background: #282828;
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 0 20px;
}

.section-title {
    font-size: 36px;
    color: white;
    margin-bottom: 20px;
    font-weight: bold;
}

.section-subtitle {
    font-size: 18px;
    color: #ccc;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

.digital-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    padding: 0 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.digital-item {
    background: #282828;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    text-align: center;
    transition: transform 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.digital-image {
    margin-bottom: 20px;
}

.digital-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
}

.digital-title {
    font-size: 24px;
    color: white;
    margin-bottom: 15px;
    font-weight: bold;
}

.digital-text {
    font-size: 16px;
    color: #ccc;
    line-height: 1.6;
}

/* 全球布局轮播图样式 - 完全重写 */
.global-layout-content {
    background: #282828;
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.carousel-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
}

.carousel-slides {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    background: #282828;
}

.slide {
    display: none;
    width: 100%;
}

.slide.active {
    display: block;
}

.slide-container {
    display: flex;
    align-items: center;
    min-height: 500px;
    padding: 60px;
    gap: 60px;
}

.slide-image {
    flex: 0 0 45%;
}

.slide-image img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.slide-content {
    flex: 1;
    padding-left: 20px;
}

.slide-title {
    font-size: 36px;
    color: white;
    margin-bottom: 25px;
    font-weight: bold;
    line-height: 1.2;
}

.slide-description {
    font-size: 20px;
    color: #e0e0e0;
    line-height: 1.8;
    margin-bottom: 35px;
}

.slide-btn {
    background: #5C6650;
    color: white;
    border: none;
    padding: 15px 35px;
    font-size: 18px;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(92, 102, 80, 0.3);
}

.slide-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(92, 102, 80, 0.4);
}

/* 轮播控制按钮 */
.carousel-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: 10;
}

.control-btn {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #2c3e50;
    transition: all 0.3s ease;
    pointer-events: auto;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.control-btn:hover {
    background: white;
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.prev-btn {
    margin-left: 20px;
}

.next-btn {
    margin-right: 20px;
}

/* 轮播指示器 */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 40px;
    padding: 0 40px;
}

.dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot:hover {
    background: rgba(212, 176, 108, 0.8);
    transform: scale(1.1);
}

.dot.active {
    background: #D4B06C;
    transform: scale(1.2);
}

/* 战略合作内容 - 重新设计 */
.strategic-cooperation-content {
    background: #1a1a1a;
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.cooperation-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 0 20px;
}

.cooperation-title {
    font-size: 36px;
    color: white;
    margin-bottom: 20px;
    font-weight: bold;
}

.cooperation-subtitle {
    font-size: 18px;
    color: #e0e0e0;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

.cooperation-sections {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.cooperation-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    background: transparent;
}

.cooperation-item:last-child {
    border-bottom: none;
}

.cooperation-item-header {
    padding: 25px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: transparent;
}

.cooperation-item-header:hover {
    background: rgba(255, 255, 255, 0.02);
}

.cooperation-content {
    flex: 1;
}

.cooperation-item-title {
    font-size: 20px;
    color: white;
    margin-bottom: 0;
    font-weight: bold;
}

.cooperation-item-text {
    font-size: 16px;
    color: #e0e0e0;
    line-height: 1.6;
    margin: 15px 0 0 0;
    display: none;
}

.cooperation-item.expanded .cooperation-item-text {
    display: block;
}

.cooperation-arrow {
    color: white;
    font-size: 16px;
    transition: all 0.3s ease;
    margin-left: 20px;
    margin-right: 10px;
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}

.cooperation-item.expanded .cooperation-arrow i {
    transform: rotate(90deg);
}

/* 联系信息内容 */
.contact-content {
    background: white;
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.contact-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 0 20px;
}

.contact-title {
    font-size: 36px;
    color: #333;
    margin-bottom: 20px;
    font-weight: bold;
}

.contact-subtitle {
    font-size: 18px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

.contact-sections {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

/* 联系表单 */
.contact-form-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(92, 102, 80, 0.1);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 15px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
    padding: 15px 20px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: white;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #5C6650;
    box-shadow: 0 0 0 3px rgba(92, 102, 80, 0.1);
    transform: translateY(-2px);
}

.submit-btn {
    background: linear-gradient(135deg, #5C6650 0%, #4a5244 100%);
    color: white;
    border: none;
    padding: 18px 35px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: flex-start;
    box-shadow: 0 4px 15px rgba(92, 102, 80, 0.3);
    letter-spacing: 0.5px;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(92, 102, 80, 0.4);
}

/* 右侧区域 */
.contact-right-section {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* 地址信息 */
.address-section {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(92, 102, 80, 0.1);
}

.address-info {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.address-icon {
    color: #5C6650;
    font-size: 28px;
    margin-top: 5px;
    background: rgba(92, 102, 80, 0.1);
    padding: 12px;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.address-text p {
    margin: 0 0 8px 0;
    font-size: 16px;
    color: #666;
    line-height: 1.6;
}

.address-text p:last-child {
    margin-bottom: 0;
}

/* 地图区域 */
.map-section {
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(92, 102, 80, 0.1);
}

.map-section iframe {
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    width: 100%;
    height: 300px;
}

/* 页脚 */
.footer {
    background: #1a1a1a;
    padding: 30px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 1;
}

.footer-content {
    text-align: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.copyright {
    color: #ccc;
    font-size: 14px;
    margin: 0;
    letter-spacing: 0.5px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .main-title {
        font-size: 36px;
    }
    
    .slogan {
        font-size: 18px;
    }
    
    .slide-content {
        flex-direction: column;
        text-align: center;
        padding: 30px 20px;
    }
    
    .slide-image {
        flex: none;
        margin-right: 0;
        margin-bottom: 30px;
        width: 100%;
    }
    
    .slide-img {
        height: 200px;
    }
    
    .slide-text {
        padding-left: 0;
    }
    
    .slide-title {
        font-size: 28px;
    }
    
    .slide-description {
        font-size: 16px;
    }
    
    .strategy-sections,
    .digital-sections {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .profile-section .row {
        flex-direction: column;
    }
    
    .profile-section .col-md-6:first-child {
        order: 2;
        margin-bottom: 30px;
    }
    
    .profile-section .col-md-6:last-child {
        order: 1;
    }
    
    .cooperation-header {
        padding: 20px 15px;
    }
    
    .cooperation-item-title {
        font-size: 18px;
    }
    
    .cooperation-item-text {
        font-size: 14px;
    }
    
    .details-content {
        padding: 20px 15px;
    }
    
    .details-content h4 {
        font-size: 18px;
    }
    
    .details-list li {
        font-size: 14px;
    }
    
    .cooperation-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .stat-number {
        font-size: 24px;
    }
    
    .contact-sections {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-form-section {
        padding: 30px;
    }
    
    .address-section {
        padding: 25px;
    }
    
    .map-section {
        padding: 15px;
    }
    
    .map-section iframe {
        height: 250px;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 28px;
    }
    
    .slogan {
        font-size: 16px;
    }
    
    .slide-content {
        padding: 20px 15px;
    }
    
    .slide-img {
        height: 180px;
    }
    
    .slide-title {
        font-size: 24px;
    }
    
    .slide-description {
        font-size: 14px;
    }
    
    .nav-arrow {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }
    
    .prev-arrow {
        margin-left: -20px;
    }
    
    .next-arrow {
        margin-right: -20px;
    }
}