/* ========================================
   田润节水灌溉 - 首页专属样式
   纵向卷轴动态展开布局
   ======================================== */

/* Hero Banner - 全屏沉浸式 */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(13, 13, 13, 0.8) 0%, rgba(26, 26, 26, 0.9) 100%),
                url('../images/hero-bg.jpg') center/cover no-repeat;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, transparent 0%, rgba(13, 13, 13, 0.6) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 40px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: 20px;
    letter-spacing: 8px;
    text-transform: uppercase;
    opacity: 0;
    transform: translateY(50px);
    animation: heroTitleAnim 1s ease forwards 0.5s;
}

@keyframes heroTitleAnim {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--color-text);
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(30px);
    animation: heroSubtitleAnim 1s ease forwards 1s;
}

@keyframes heroSubtitleAnim {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 50px;
    line-height: 2;
    opacity: 0;
    transform: translateY(30px);
    animation: heroDescAnim 1s ease forwards 1.5s;
}

@keyframes heroDescAnim {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    opacity: 0;
    transform: translateY(30px);
    animation: heroButtonsAnim 1s ease forwards 2s;
}

@keyframes heroButtonsAnim {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: scrollBounce 2s infinite;
}

@keyframes scrollBounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-15px);
    }
    60% {
        transform: translateX(-50%) translateY(-7px);
    }
}

.hero-scroll span {
    display: block;
    width: 30px;
    height: 50px;
    border: 2px solid var(--color-accent);
    border-radius: 15px;
    position: relative;
}

.hero-scroll span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 10px;
    background: var(--color-accent);
    border-radius: 3px;
    animation: scrollWheel 2s infinite;
}

@keyframes scrollWheel {
    0% {
        opacity: 1;
        top: 8px;
    }
    100% {
        opacity: 0;
        top: 25px;
    }
}

/* 公司概况 - 独特斜切布局 */
.about-section {
    position: relative;
    padding: 120px 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-darker) 100%);
    clip-path: polygon(0 5%, 100% 0, 100% 95%, 0 100%);
    margin: 60px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

.about-image::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 20px;
    right: -20px;
    bottom: -20px;
    border: 3px solid var(--color-accent);
    border-radius: 12px;
    z-index: -1;
}

.about-content h3 {
    font-size: 2rem;
    color: var(--color-accent);
    margin-bottom: 25px;
    letter-spacing: 2px;
}

.about-content p {
    color: var(--color-text-muted);
    margin-bottom: 20px;
    line-height: 2;
    font-size: 1.05rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
    padding: 25px;
    background: rgba(184, 149, 106, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(184, 149, 106, 0.1);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-accent);
    background: rgba(184, 149, 106, 0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-accent);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-top: 8px;
    display: block;
}

/* 产品中心 - 卡片悬浮布局 */
.products-section {
    padding: 120px 0;
    background: var(--color-darker);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
}

.product-card {
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.8) 0%, rgba(13, 13, 13, 0.9) 100%);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(184, 149, 106, 0.1);
    transition: all 0.4s ease;
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-brown-light));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(184, 149, 106, 0.15);
    border-color: var(--color-accent);
}

.product-image {
    height: 240px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.product-info {
    padding: 30px;
}

.product-info h4 {
    font-size: 1.4rem;
    color: var(--color-accent);
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.product-info p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.9rem;
    transition: gap 0.3s ease;
}

.product-link:hover {
    gap: 15px;
}

/* 解决方案 - 交错式布局 */
.solutions-section {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-darker) 100%);
}

.solution-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
    padding: 50px;
    background: rgba(26, 26, 26, 0.5);
    border-radius: 16px;
    border: 1px solid rgba(184, 149, 106, 0.1);
    transition: all 0.4s ease;
}

.solution-item:hover {
    border-color: var(--color-accent);
    box-shadow: 0 15px 40px rgba(184, 149, 106, 0.1);
}

.solution-item:nth-child(even) {
    direction: rtl;
}

.solution-item:nth-child(even) .solution-content {
    direction: ltr;
}

.solution-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.solution-image img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.solution-item:hover .solution-image img {
    transform: scale(1.05);
}

.solution-content h4 {
    font-size: 1.8rem;
    color: var(--color-accent);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.solution-content p {
    color: var(--color-text-muted);
    line-height: 2;
    margin-bottom: 25px;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-brown-light);
    font-size: 0.95rem;
}

.feature-item::before {
    content: '✓';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    background: var(--color-accent);
    color: var(--color-dark);
    border-radius: 50%;
    font-size: 0.7rem;
    font-weight: 700;
}

/* 工程案例 - 瀑布流布局 */
.cases-section {
    padding: 120px 0;
    background: var(--color-darker);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.case-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
}

.case-card:nth-child(1) {
    grid-column: span 2;
    grid-row: span 2;
}

.case-card:nth-child(4),
.case-card:nth-child(5) {
    grid-column: span 1;
}

.case-image {
    width: 100%;
    height: 100%;
    min-height: 280px;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.case-card:hover .case-image img {
    transform: scale(1.1);
}

.case-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px;
    background: linear-gradient(to top, rgba(13, 13, 13, 0.95) 0%, transparent 100%);
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.4s ease;
}

.case-card:hover .case-overlay {
    transform: translateY(0);
    opacity: 1;
}

.case-overlay h4 {
    color: var(--color-accent);
    font-size: 1.3rem;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.case-overlay p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* 技术服务 - 步骤式布局 */
.services-section {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-darker) 100%);
}

.services-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.services-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: linear-gradient(to bottom, var(--color-accent), var(--color-brown-dark));
}

.service-step {
    display: flex;
    align-items: center;
    gap: 50px;
    margin-bottom: 60px;
    position: relative;
}

.service-step:nth-child(odd) {
    flex-direction: row-reverse;
    text-align: right;
}

.service-step-icon {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-brown-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-dark);
    font-weight: 700;
    box-shadow: 0 10px 30px rgba(184, 149, 106, 0.3);
    position: relative;
    z-index: 2;
}

.service-step-content {
    flex: 1;
    background: rgba(26, 26, 26, 0.8);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid rgba(184, 149, 106, 0.1);
    transition: all 0.3s ease;
}

.service-step-content:hover {
    border-color: var(--color-accent);
    transform: scale(1.02);
}

.service-step-content h4 {
    color: var(--color-accent);
    font-size: 1.4rem;
    margin-bottom: 12px;
    letter-spacing: 1px;
}

.service-step-content p {
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* 联系洽谈 - 地图融合布局 */
.contact-section {
    padding: 120px 0;
    background: var(--color-darker);
    position: relative;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: stretch;
}

.contact-info {
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.9) 0%, rgba(13, 13, 13, 0.95) 100%);
    padding: 50px;
    border-radius: 16px;
    border: 1px solid rgba(184, 149, 106, 0.1);
}

.contact-info h3 {
    font-size: 2rem;
    color: var(--color-accent);
    margin-bottom: 30px;
    letter-spacing: 2px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(184, 149, 106, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--color-accent);
    flex-shrink: 0;
}

.contact-text h5 {
    color: var(--color-brown-light);
    font-size: 1rem;
    margin-bottom: 5px;
}

.contact-text p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.contact-form {
    background: rgba(26, 26, 26, 0.5);
    padding: 50px;
    border-radius: 16px;
    border: 1px solid rgba(184, 149, 106, 0.1);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    color: var(--color-brown-light);
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: rgba(13, 13, 13, 0.8);
    border: 1px solid rgba(184, 149, 106, 0.2);
    border-radius: 8px;
    color: var(--color-text);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 15px rgba(184, 149, 106, 0.2);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* 首页资讯列表 */
.news-preview-section {
    padding: 100px 0;
    background: var(--color-dark);
}

.news-preview-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.news-preview-card {
    background: rgba(26, 26, 26, 0.6);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(184, 149, 106, 0.1);
    transition: all 0.4s ease;
}

.news-preview-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-accent);
    box-shadow: 0 15px 40px rgba(184, 149, 106, 0.1);
}

.news-preview-image {
    height: 180px;
    overflow: hidden;
}

.news-preview-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.news-preview-info {
    padding: 25px;
}

.news-preview-date {
    color: var(--color-accent);
    font-size: 0.85rem;
    margin-bottom: 10px;
    display: block;
}

.news-preview-title {
    color: var(--color-brown-light);
    font-size: 1.1rem;
    margin-bottom: 12px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-preview-excerpt {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .about-grid,
    .products-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-section {
        clip-path: none;
        padding: 80px 0;
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .case-card:nth-child(1) {
        grid-column: span 1;
        grid-row: span 1;
    }
    
    .services-timeline::before {
        left: 40px;
    }
    
    .service-step,
    .service-step:nth-child(odd) {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .service-step-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .news-preview-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        min-height: 600px;
    }
    
    .hero-title {
        font-size: 2rem;
        letter-spacing: 4px;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .solution-item,
    .solution-item:nth-child(even) {
        grid-template-columns: 1fr;
        direction: ltr;
        padding: 30px;
    }
    
    .solution-features {
        grid-template-columns: 1fr;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info,
    .contact-form {
        padding: 30px;
    }
    
    .news-preview-grid {
        grid-template-columns: 1fr;
    }
}