/**
 * 现代化首页设计CSS
 * 全新的视觉风格和交互效果
 */

/* ========== 全局样式 ========== */
.index-page.modern-design {
    font-family: 'Roboto', sans-serif;
    overflow-x: hidden;
}

/* AOS动画基础类 */
[data-aos] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.95);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

/* ========== Hero Section - Desktop ========== */
.modern-hero-section {
    position: relative;
    height: 80vh;
    min-height: 500px;
    max-height: 800px;
    overflow: hidden;
}

.hero-video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-video-bg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Hero遮罩层已移除 - 纯净背景 */

.hero-content-wrapper {
    position: relative;
    z-index: 3;
    width: 100%;
}

.hero-text-content {
    text-align: center;
    color: #ffffff;
    max-width: 800px;
    margin: 0 auto;
}

.hero-main-title {
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.title-highlight {
    background: linear-gradient(135deg, #2DB7A4 0%, #4bc4b3 50%, #6dd5c3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-cta-group {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
}

.btn-hero {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    font-size: 1.1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-hero.btn-primary {
    background: linear-gradient(135deg, #2DB7A4 0%, #4bc4b3 100%);
    color: #ffffff;
    box-shadow: 0 8px 20px rgba(45, 183, 164, 0.4);
}

.btn-hero.btn-primary:hover {
    background: linear-gradient(135deg, #239a8a 0%, #2DB7A4 100%);
    box-shadow: 0 12px 30px rgba(45, 183, 164, 0.6);
    transform: translateY(-3px);
}

.btn-hero.btn-outline {
    background: transparent;
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.btn-hero.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #ffffff;
    transform: translateY(-3px);
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    cursor: pointer;
}

.scroll-arrow {
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.6);
    border-radius: 25px;
    position: relative;
}

.scroll-arrow::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    width: 6px;
    height: 6px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    transform: translateX(-50%);
    animation: scroll-down 2s infinite;
}

@keyframes scroll-down {
    0% {
        top: 10px;
        opacity: 1;
    }
    100% {
        top: 30px;
        opacity: 0;
    }
}

/* ========== Hero Section - Mobile ========== */
.modern-hero-mobile {
    position: relative;
    height: 60vh;
    min-height: 400px;
    max-height: 600px;
    overflow: hidden;
}

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

.mobile-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 0.8s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-slide.active {
    opacity: 1;
    z-index: 1;
}

/* 移动端遮罩层已移除 - 纯净背景 */

.mobile-slide-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 20px;
    color: #ffffff;
}

.mobile-hero-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 24px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    line-height: 1.3;
}

.mobile-cta-btn {
    display: inline-block;
    padding: 14px 32px;
    background: linear-gradient(135deg, #2DB7A4 0%, #4bc4b3 100%);
    color: #ffffff;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 500;
    box-shadow: 0 6px 20px rgba(45, 183, 164, 0.4);
    transition: all 0.3s ease;
}

.mobile-cta-btn:hover {
    box-shadow: 0 8px 25px rgba(45, 183, 164, 0.6);
    transform: translateY(-2px);
}

.mobile-carousel-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    gap: 10px;
    padding: 10px 16px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.mobile-carousel-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-carousel-dots .dot.active {
    background: #ffffff;
    width: 30px;
    border-radius: 5px;
    box-shadow: 0 2px 8px rgba(255, 255, 255, 0.3);
}

/* ========== 通用Section样式 ========== */
.section-header-modern {
    text-align: center;
    margin-bottom: 60px;
}

.section-header-modern.text-left {
    text-align: left;
}

.section-subtitle-badge {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, rgba(45, 183, 164, 0.1) 0%, rgba(45, 183, 164, 0.2) 100%);
    color: #2DB7A4;
    border-radius: 30px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section-title-modern {
    font-size: 3rem;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 16px;
    line-height: 1.2;
}

.title-gradient {
    background: linear-gradient(135deg, #2DB7A4 0%, #4bc4b3 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    font-size: 1.125rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.section-header-modern.text-left .section-description {
    margin: 0;
}

/* ========== 产品区域 ========== */
.modern-products-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.modern-product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.modern-product-card {
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
}

.modern-product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.product-card-inner {
    position: relative;
}

.product-image-container {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
    background: #f8f9fa;
}

.product-image-container a {
    display: block;
    width: 100%;
    height: 100%;
}

.product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.modern-product-card:hover .product-img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(45, 183, 164, 0.9) 0%, rgba(26, 26, 46, 0.9) 100%);
    opacity: 0;
    transition: all 0.4s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modern-product-card:hover .product-overlay {
    opacity: 1;
}

.overlay-content {
    color: #ffffff;
    text-align: center;
}

.view-details-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    font-size: 1rem;
}

.product-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 14px;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    color: #ffffff;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
    z-index: 2;
    box-shadow: 0 2px 10px rgba(255, 107, 107, 0.4);
}

.product-info-container {
    padding: 24px;
}

.product-model-tag {
    display: inline-block;
    padding: 4px 12px;
    background: #f0f9f7;
    color: #2DB7A4;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.product-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1a1a2e;
    margin-bottom: 16px;
    line-height: 1.4;
    min-height: 50px;
}

.product-name a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.product-name a:hover {
    color: #2DB7A4;
}

.product-action-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #2DB7A4;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.product-link-btn:hover {
    gap: 10px;
}

.section-cta-center {
    text-align: center;
    margin-top: 50px;
}

.btn-modern-outline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: transparent;
    border: 2px solid #2DB7A4;
    color: #2DB7A4;
    font-weight: 500;
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-modern-outline:hover {
    background: #2DB7A4;
    color: #ffffff;
    box-shadow: 0 6px 20px rgba(45, 183, 164, 0.3);
    transform: translateY(-2px);
}

/* ========== About区域 ========== */
.modern-about-section {
    padding: 100px 0;
    background: #ffffff;
}

.about-grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image-frame {
    position: relative;
}

.frame-decoration {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 200px;
    height: 200px;
    border: 3px solid #2DB7A4;
    border-radius: 20px;
    z-index: 1;
}

.about-main-image {
    position: relative;
    z-index: 2;
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.about-stats-floating {
    position: absolute;
    bottom: 30px;
    right: 30px;
    z-index: 3;
}

.stat-item-float {
    background: linear-gradient(135deg, #2DB7A4 0%, #4bc4b3 100%);
    padding: 20px 30px;
    border-radius: 16px;
    text-align: center;
    color: #ffffff;
    box-shadow: 0 10px 30px rgba(45, 183, 164, 0.4);
}

.stat-number-float {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label-float {
    font-size: 0.875rem;
    font-weight: 500;
    opacity: 0.9;
}

.about-text-content {
    margin-bottom: 30px;
}

.about-description-text {
    font-size: 1rem;
    line-height: 1.8;
    color: #666;
}

.about-features-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 30px;
}

.feature-item-inline {
    display: flex;
    align-items: center;
    gap: 12px;
}

.feature-icon-circle {
    width: 36px;
    height: 36px;
    background: #f0f9f7;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon-circle svg {
    color: #2DB7A4;
    stroke-width: 3;
}

.feature-item-inline span {
    font-size: 1rem;
    font-weight: 500;
    color: #333;
}

.about-cta-group {
    display: flex;
    gap: 20px;
    align-items: center;
}

.btn-modern-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    background: linear-gradient(135deg, #2DB7A4 0%, #4bc4b3 100%);
    color: #ffffff;
    font-weight: 500;
    border-radius: 30px;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(45, 183, 164, 0.3);
    transition: all 0.3s ease;
}

.btn-modern-primary:hover {
    background: linear-gradient(135deg, #239a8a 0%, #2DB7A4 100%);
    box-shadow: 0 8px 25px rgba(45, 183, 164, 0.4);
    transform: translateY(-2px);
}

.btn-text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #666;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-text-link:hover {
    color: #2DB7A4;
    gap: 10px;
}

/* ========== 视频区域 ========== */
.modern-video-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
}

.modern-video-carousel-wrapper {
    position: relative;
    overflow: hidden;
    padding: 0 60px;
}

.modern-video-track {
    display: flex;
    gap: 30px;
    transition: transform 0.5s ease;
}

.modern-video-item {
    flex: 0 0 calc(33.333% - 20px);
    min-width: 0;
}

.modern-video-card {
    display: block;
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-decoration: none;
    transition: all 0.4s ease;
}

.modern-video-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.video-thumbnail-wrapper {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: #f8f9fa;
}

.video-thumbnail-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.modern-video-card:hover .video-thumbnail-wrapper img {
    transform: scale(1.1);
}

.video-play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 26, 46, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
}

.modern-video-card:hover .video-play-overlay {
    opacity: 1;
}

.play-button-modern {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #2DB7A4 0%, #4bc4b3 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 20px rgba(45, 183, 164, 0.4);
    transition: all 0.3s ease;
}

.modern-video-card:hover .play-button-modern {
    transform: scale(1.1);
}

.play-button-modern svg {
    margin-left: 4px;
}

.video-duration-badge {
    position: absolute;
    bottom: 12px;
    right: 12px;
    padding: 6px 12px;
    background: rgba(0, 0, 0, 0.7);
    color: #ffffff;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    backdrop-filter: blur(10px);
}

.video-content-info {
    padding: 20px;
}

.video-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1a1a2e;
    margin-bottom: 12px;
    line-height: 1.4;
    min-height: 50px;
}

.video-watch-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #2DB7A4;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.modern-video-card:hover .video-watch-link {
    gap: 10px;
}

.modern-carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: #ffffff;
    border: none;
    border-radius: 50%;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 2;
}

.modern-carousel-btn.btn-prev {
    left: 0;
}

.modern-carousel-btn.btn-next {
    right: 0;
}

.modern-carousel-btn:hover {
    background: #2DB7A4;
    box-shadow: 0 6px 20px rgba(45, 183, 164, 0.3);
}

.modern-carousel-btn:hover svg {
    stroke: #ffffff;
}

.modern-carousel-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ========== 新闻区域 ========== */
.modern-news-section {
    padding: 100px 0;
    background: #ffffff;
}

.modern-news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 50px;
}

.modern-news-featured {
    grid-row: span 2;
}

.news-featured-link {
    display: block;
    height: 100%;
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-decoration: none;
    transition: all 0.4s ease;
}

.news-featured-link:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.news-featured-img {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
}

.news-featured-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.news-featured-link:hover .news-featured-img img {
    transform: scale(1.1);
}

.news-overlay-gradient {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background: linear-gradient(to top, rgba(26, 26, 46, 0.8), transparent);
}

.news-category-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 6px 16px;
    background: linear-gradient(135deg, #2DB7A4 0%, #4bc4b3 100%);
    color: #ffffff;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.news-featured-info {
    padding: 30px;
}

.news-meta-row {
    margin-bottom: 16px;
}

.news-date-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: #f8f9fa;
    color: #666;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.news-featured-heading {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 16px;
    line-height: 1.4;
}

.news-featured-excerpt {
    font-size: 1rem;
    color: #666;
    line-height: 1.6;
    margin-bottom: 16px;
}

.news-read-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #2DB7A4;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.3s ease;
}

.news-featured-link:hover .news-read-link {
    gap: 10px;
}

.modern-news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.modern-news-card {
    background: #ffffff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.modern-news-card:hover {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    transform: translateX(5px);
}

.news-card-link {
    display: flex;
    gap: 20px;
    text-decoration: none;
    padding: 16px;
}

.news-card-img {
    flex-shrink: 0;
    width: 120px;
    height: 100px;
    border-radius: 8px;
    overflow: hidden;
    background: #f8f9fa;
}

.news-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.modern-news-card:hover .news-card-img img {
    transform: scale(1.1);
}

.news-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-card-date {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: #999;
    margin-bottom: 8px;
}

.news-card-heading {
    font-size: 1rem;
    font-weight: 600;
    color: #1a1a2e;
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-card-excerpt {
    font-size: 0.875rem;
    color: #666;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========== 联系区域 ========== */
.modern-contact-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
}

.modern-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    margin-top: 60px;
}

.contact-info-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.modern-info-card {
    background: #ffffff;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    display: flex;
    gap: 20px;
    align-items: flex-start;
    transition: all 0.3s ease;
}

.modern-info-card:hover {
    transform: translateX(10px);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.12);
}

.info-card-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #f0f9f7 0%, #e8fff8 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-card-icon svg {
    width: 24px;
    height: 24px;
    stroke: #2DB7A4;
    stroke-width: 2;
}

.info-card-content {
    flex: 1;
}

.info-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #1a1a2e;
    margin-bottom: 8px;
}

.info-card-text {
    font-size: 0.9375rem;
    color: #666;
    line-height: 1.6;
}

.info-card-text a {
    color: #2DB7A4;
    text-decoration: none;
    transition: color 0.3s ease;
}

.info-card-text a:hover {
    color: #239a8a;
}

.modern-form-card {
    background: #ffffff;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* 浮动标签表单 */
.modern-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

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

.floating-label-input,
.floating-label-textarea {
    position: relative;
}

.modern-input,
.modern-textarea {
    width: 100%;
    padding: 16px 16px 8px;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    font-size: 1rem;
    font-family: 'Roboto', sans-serif;
    transition: all 0.3s ease;
    background: #ffffff;
    outline: none;
}

.modern-input:focus,
.modern-textarea:focus {
    border-color: #2DB7A4;
    box-shadow: 0 0 0 3px rgba(45, 183, 164, 0.1);
}

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

.floating-label {
    position: absolute;
    left: 16px;
    top: 16px;
    color: #999;
    font-size: 1rem;
    transition: all 0.3s ease;
    pointer-events: none;
    background: #ffffff;
    padding: 0 4px;
}

.modern-input:focus + .floating-label,
.modern-input:not(:placeholder-shown) + .floating-label,
.modern-input.has-value + .floating-label,
.modern-textarea:focus + .floating-label,
.modern-textarea:not(:placeholder-shown) + .floating-label,
.modern-textarea.has-value + .floating-label {
    top: -8px;
    left: 12px;
    font-size: 0.75rem;
    color: #2DB7A4;
}

.input-border {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #2DB7A4 0%, #4bc4b3 100%);
    transition: width 0.3s ease;
}

.floating-label-input.is-focused .input-border,
.floating-label-textarea.is-focused .input-border {
    width: 100%;
}

.verify-group-modern {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.verify-input-wrapper {
    flex: 1;
}

.captcha-wrapper {
    flex-shrink: 0;
}

.captcha-img {
    height: 50px;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.captcha-img:hover {
    border-color: #2DB7A4;
    box-shadow: 0 2px 8px rgba(45, 183, 164, 0.2);
}

.modern-form-actions {
    margin-top: 30px;
}

.btn-submit-modern {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #2DB7A4 0%, #4bc4b3 100%);
    color: #ffffff;
    border: none;
    border-radius: 12px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(45, 183, 164, 0.3);
}

.btn-submit-modern:hover {
    background: linear-gradient(135deg, #239a8a 0%, #2DB7A4 100%);
    box-shadow: 0 8px 25px rgba(45, 183, 164, 0.4);
    transform: translateY(-2px);
}

.btn-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-submit-modern:hover .btn-shine {
    left: 100%;
}

/* ========== 响应式设计 ========== */
@media (max-width: 1200px) {
    .modern-product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .section-title-modern {
        font-size: 2.5rem;
    }
}

@media (max-width: 992px) {
    .hero-main-title {
        font-size: 3.5rem;
    }
    
    .modern-product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-grid-layout {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .modern-video-item {
        flex: 0 0 calc(50% - 15px);
    }
    
    .modern-news-grid {
        grid-template-columns: 1fr;
    }
    
    .modern-news-featured {
        grid-row: auto;
    }
    
    .modern-contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .modern-hero-section {
        height: 70vh;
        min-height: 500px;
    }
    
    .hero-main-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-cta-group {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-hero {
        width: 100%;
        justify-content: center;
    }
    
    .section-title-modern {
        font-size: 2rem;
    }
    
    .section-header-modern {
        margin-bottom: 40px;
    }
    
    .modern-products-section,
    .modern-about-section,
    .modern-video-section,
    .modern-news-section,
    .modern-contact-section {
        padding: 60px 0;
    }
    
    .modern-product-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .frame-decoration {
        display: none;
    }
    
    .about-features-list {
        gap: 12px;
    }
    
    .about-cta-group {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-modern-primary,
    .btn-text-link {
        width: 100%;
        justify-content: center;
    }
    
    .modern-video-carousel-wrapper {
        padding: 0 50px;
    }
    
    .modern-video-item {
        flex: 0 0 100%;
    }
    
    .modern-carousel-btn {
        width: 40px;
        height: 40px;
    }
    
    .modern-news-list {
        gap: 16px;
    }
    
    .news-card-link {
        flex-direction: column;
        gap: 12px;
    }
    
    .news-card-img {
        width: 100%;
        height: 180px;
    }
    
    .modern-form-row {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-bottom: 16px;
    }
    
    .modern-form-card {
        padding: 24px;
    }
    
    .verify-group-modern {
        flex-direction: column;
    }
    
    .captcha-wrapper {
        align-self: flex-start;
    }
}

@media (max-width: 480px) {
    .hero-main-title {
        font-size: 2rem;
    }
    
    .section-title-modern {
        font-size: 1.75rem;
    }
    
    .mobile-hero-title {
        font-size: 1.5rem;
    }
    
    .product-image-container {
        height: 220px;
    }
    
    .news-featured-img {
        height: 250px;
    }
}

/* 空状态 */
.empty-state-modern,
.news-empty-placeholder,
.news-list-empty {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}

.empty-state-modern svg,
.news-empty-placeholder svg {
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state-modern p,
.news-empty-placeholder p,
.news-list-empty p {
    font-size: 1rem;
    color: #999;
}