/* 主视觉区域 - 轮播图 */
.hero-section {
    margin-top: 80px;
    position: relative;
    height: 85vh;
    min-height: 600px;
    overflow: hidden;
}

.carousel-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
    display: flex;
    align-items: center;
    padding: 0 5%;
}

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

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -1;
}

.slide-content {
    max-width: 600px;
    z-index: 2;
}

.slide-content h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #fff, var(--accent-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.slide-content p {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.6;
}

.slide-content .highlight {
    color: var(--accent-blue);
    font-weight: 600;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    color: white;
    padding: 15px 35px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 6px 20px rgba(0, 217, 255, 0.4);
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 217, 255, 0.6);
}

.carousel-nav {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dot.active {
    background-color: var(--accent-cyan);
    transform: scale(1.3);
    box-shadow: 0 0 10px var(--accent-blue);
}

.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.carousel-arrow:hover {
    background-color: rgba(0, 217, 255, 0.3);
    border-color: var(--accent-blue);
}

.carousel-arrow.prev {
    left: 20px;
}

.carousel-arrow.next {
    right: 20px;
}

/* 3D模型容器 */
.model-container {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 450px;
    height: 450px;
    z-index: 5;
    border-radius: 10px;
    overflow: hidden;
    background: transparent;
}

#three-container {
    width: 100%;
    height: 100%;
    background: transparent;
}

.model-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: 20;
}

.model-btn {
    background-color: rgba(20, 25, 45, 0.8);
    color: white;
    border: 1px solid rgba(0, 217, 255, 0.5);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.2rem;
}

.model-btn:hover {
    background-color: rgba(0, 217, 255, 0.2);
    transform: scale(1.1);
}

/* 解决方案区域 */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.8rem;
    margin-bottom: 15px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.section-title p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}

.solutions-section, .features-section, .info-section {
    padding: 40px 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.solution-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.solution-card:hover {
    transform: translateY(-10px);
    border-color: var(--border-glow);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
}

.solution-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--accent-cyan);
}

.solution-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.solution-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 特色功能区域 */
.feature-block {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    gap: 60px;
}

.feature-block:nth-child(even) {
    flex-direction: row-reverse;
}

.feature-content {
    flex: 1;
}

.feature-visual {
    flex: 1;
    height: 350px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 217, 255, 0.2);
    position: relative;
}

.feature-visual::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(0, 217, 255, 0.1), rgba(138, 43, 226, 0.1));
    z-index: 1;
}

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

.feature-content h3 {
    font-size: 2.2rem;
    margin-bottom: 20px;
    color: var(--accent-cyan);
}

.feature-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.7;
}

.feature-spec {
    background-color: rgba(0, 217, 255, 0.1);
    border-left: 3px solid var(--accent-blue);
    padding: 15px;
    margin-top: 20px;
    border-radius: 0 8px 8px 0;
}

/* 资讯与问答区域 */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 50px;
}

.news-section, .faq-section {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.section-header h3 {
    font-size: 1.8rem;
    color: var(--accent-cyan);
}

.section-header p {
    color: var(--text-secondary);
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.news-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    transition: var(--transition);
    cursor: pointer;
}

.news-item:hover {
    background-color: rgba(0, 217, 255, 0.1);
    transform: translateX(5px);
}

.news-icon {
    font-size: 1.8rem;
    color: var(--accent-blue);
}

.news-content h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    font-weight: 500;
}

.news-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 15px;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: 10px 0;
}

.faq-question h4 {
    font-size: 1.1rem;
    font-weight: 500;
}

.faq-toggle {
    color: var(--accent-blue);
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    color: var(--text-secondary);
    line-height: 1.6;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    margin-top: 10px;
}

.view-more {
    display: inline-block;
    margin-top: 20px;
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.view-more:hover {
    color: var(--accent-cyan);
}

.view-more i {
    margin-left: 5px;
}