/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    color: #333;
    line-height: 1.6;
    background-color: #fff;
}

a {
    text-decoration: none;
    color: #333;
    transition: color 0.3s;
}

a:hover {
    color: #e60012;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    width: 1200px;
    margin: 0 auto;
}

/* Header */
.header {
    height: 80px;
    background-color: #fff;
    border-bottom: 1px solid #eee;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    flex-wrap: nowrap;
}

.header-top {
    display: flex;
    align-items: center;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-left: auto;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: #000;
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

.nav {
    display: flex;
    flex-wrap: nowrap;
}

.nav li {
    margin: 0 20px;
}

.nav a {
    font-size: 16px;
    color: #333;
    padding: 10px 0;
    display: block;
    position: relative;
}

.nav a.active, .nav a:hover {
    color: #e60012;
}

.nav a.active::after, .nav a:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #e60012;
}

.phone {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: bold;
    color: #333;
}

.phone i {
    color: #e60012;
    margin-right: 10px;
    font-size: 28px;
}

/* Footer */
.footer {
    background-color: #1a2b5c;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-links {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 20px;
    font-weight: normal;
}

.footer-col ul li {
    margin-bottom: 15px;
}

.footer-col ul a {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
}

.footer-col ul a:hover {
    color: #e60012;
}

.footer-col.contact p {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    margin-bottom: 10px;
}

.footer-col.contact .qrcode {
    width: 100px;
    height: 100px;
    background-color: #fff;
    margin-top: 10px;
    border-radius: 8px;
}

.footer-bottom {
    text-align: center;
    color: rgba(255,255,255,0.5);
    font-size: 12px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Home Banner */
.home-banner {
    background-color: #1a2b5c;
    background-image: url('../images/banner-bg.svg');
    background-size: cover;
    background-position: center;
    width: 100%;
    height: 700px;
    padding: 100px 0;
    text-align: center;
    color: #fff;
}

.home-banner h2 {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 15px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.banner-subtitle {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 20px;
}

.banner-keywords {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 25px;
    flex-wrap: wrap;
    margin-top: 40px;
}

.keyword-item {
    background: linear-gradient(135deg, rgba(230,0,18,0.9) 0%, rgba(255,80,80,0.9) 100%);
    border: none;
    padding: 16px 32px;
    font-size: 20px;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.4s ease;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(230,0,18,0.4);
    animation: fireGlow 2s ease-in-out infinite alternate;
}

.keyword-item:nth-child(1) { animation-delay: 0s; }
.keyword-item:nth-child(2) { animation-delay: 0.4s; }
.keyword-item:nth-child(3) { animation-delay: 0.8s; }
.keyword-item:nth-child(4) { animation-delay: 1.2s; }
.keyword-item:nth-child(5) { animation-delay: 1.6s; }

@keyframes fireGlow {
    0% {
        box-shadow: 0 4px 20px rgba(230,0,18,0.4), 0 0 20px rgba(255,100,0,0.2);
        transform: translateY(0);
    }
    100% {
        box-shadow: 0 6px 30px rgba(230,0,18,0.6), 0 0 40px rgba(255,100,0,0.4);
        transform: translateY(-5px);
    }
}

.keyword-item::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 30%,
        rgba(255,255,255,0.2) 50%,
        transparent 70%
    );
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

.keyword-item:hover {
    background: linear-gradient(135deg, #ff4d4d 0%, #ff8533 100%);
    transform: scale(1.12) translateY(-8px) !important;
    animation: none;
    box-shadow: 0 10px 40px rgba(230,0,18,0.7);
}

.keyword-item i {
    margin-right: 10px;
    animation: iconBounce 1s ease-in-out infinite;
}

@keyframes iconBounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.keyword-item:hover i {
    animation: none;
}

/* Section Title */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 32px;
    color: #333;
    margin-bottom: 10px;
    font-weight: normal;
}

.section-title p {
    font-size: 16px;
    color: #666;
}

.section-title .line {
    width: 40px;
    height: 2px;
    background-color: #e60012;
    margin: 20px auto 0;
}

.section-title.light h2 {
    color: #fff;
}

.section-title.light p {
    color: rgba(255, 255, 255, 0.8);
}

/* Home About */
.home-about {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.about-content {
    display: flex;
    gap: 50px;
    align-items: center;
}

.about-img {
    flex: 1;
    position: relative;
}

.about-img img {
    width: 100%;
    border-radius: 5px;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    font-weight: normal;
}

.about-text p {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
    text-indent: 2em;
}

.about-btns {
    margin-top: 30px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 16px;
    border-radius: 3px;
    margin-right: 15px;
    transition: all 0.3s;
}

.btn-primary {
    background-color: #e60012;
    color: #fff;
    border: 1px solid #e60012;
}

.btn-primary:hover {
    background-color: #cc0010;
    color: #fff;
}

.btn-outline {
    background-color: transparent;
    color: #333;
    border: 1px solid #ddd;
}

.btn-outline:hover {
    border-color: #e60012;
    color: #e60012;
}

/* Home Services */
.home-services {
    padding: 80px 0;
}

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

.service-item {
    background-color: #fff;
    padding-bottom: 30px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
}

.service-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.service-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    margin-bottom: 20px;
}

.service-item h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
    font-weight: normal;
}

.service-item p {
    font-size: 14px;
    color: #666;
    padding: 0 20px;
    line-height: 1.8;
}

.service-link {
    display: inline-block;
    margin-top: 15px;
    color: #e60012;
    font-size: 14px;
}

.service-link:hover {
    text-decoration: underline;
}

/* Services Page */
.services-page-content {
    padding: 80px 0;
    background: #fff;
}

.service-grid-page {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.service-card {
    display: flex;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
}

.service-card .service-img {
    width: 280px;
    flex-shrink: 0;
    height: 220px;
    overflow: hidden;
}

.service-card .service-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.service-card .service-body {
    padding: 24px 28px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    flex: 1;
    min-height: 220px;
}

.service-card h3 {
    font-size: 20px;
    color: #1a2b5c;
    margin-bottom: 10px;
    font-weight: 600;
}

.service-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.service-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #e60012;
    font-size: 14px;
    font-weight: 500;
}

.service-more i {
    transition: transform 0.3s;
}

.service-card:hover .service-more i {
    transform: translateX(4px);
}

/* Service Detail */
.service-detail {
    padding: 40px 0 80px;
}

.service-detail .breadcrumb {
    margin-bottom: 30px;
    font-size: 14px;
    color: #666;
}

.service-detail .breadcrumb a {
    color: #666;
}

.service-detail .breadcrumb a:hover {
    color: #e60012;
}

.service-detail .detail-content {
    display: flex;
    gap: 50px;
    align-items: center;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 12px;
    overflow: hidden;
    padding: 0;
}

.service-detail .detail-image {
    flex: 0 0 480px;
}

.service-detail .detail-image img {
    width: 100%;
    height: 380px;
    object-fit: cover;
    border-radius: 10px;
    display: block;
}

.service-detail .detail-info {
    flex: 1 1 55%;
    padding: 10px 10px 10px 0;
}

.service-detail .detail-info h1 {
    font-size: 28px;
    color: #1a2b5c;
    margin-bottom: 18px;
    font-weight: 600;
}

.service-detail .detail-desc h4 {
    font-size: 16px;
    color: #333;
    margin-bottom: 8px;
}

.service-detail .detail-desc p {
    font-size: 15px;
    color: #555;
    line-height: 1.9;
    margin-bottom: 20px;
}

.service-detail .detail-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 28px;
}

.service-detail .highlight-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: #f6f8ff;
    color: #1a2b5c;
    border-radius: 999px;
    font-size: 14px;
    border: 1px solid #e3e8ff;
}

.service-detail .highlight-item i {
    color: #e60012;
}

.service-detail .detail-contact {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.service-detail .detail-back {
    margin-top: 40px;
}

.service-detail .btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border: 1px solid #ddd;
    border-radius: 6px;
    color: #555;
    background: #fff;
}

.service-detail .btn-back:hover {
    border-color: #e60012;
    color: #e60012;
}

/* Tech Params */
.tech-params {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.param-item {
    text-align: center;
    background: #f9f9f9;
    padding: 30px 40px;
    border-radius: 8px;
}

.param-value {
    font-size: 48px;
    font-weight: bold;
    color: #e60012;
}

.param-value span {
    font-size: 20px;
    margin-left: 5px;
}

.param-label {
    font-size: 16px;
    color: #666;
    margin-top: 10px;
}

.tech-note {
    text-align: center;
    padding: 20px;
    background: #1a2b5c;
    color: #fff;
    border-radius: 8px;
    font-size: 16px;
}

/* Home Mining Cases */
.home-mining-cases {
    padding: 80px 0;
    background-color: #1a2b5c;
}

.mining-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    max-height: 360px;
    overflow: hidden;
}

.mining-item {
    text-align: center;
}

.mining-item .img-wrap {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 15px;
}

.mining-item img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    display: block;
}

.mining-item p {
    color: #fff;
    font-size: 16px;
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background-color: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.3s;
}

.play-btn::after {
    content: '';
    display: block;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 15px 0 15px 25px;
    border-color: transparent transparent transparent #fff;
    margin-left: 5px;
}

.play-btn:hover {
    background-color: #e60012;
}

/* Home Cases */
.home-cases {
    padding: 80px 0;
    background-color: #f9f9f9;
}

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

.case-item {
    text-align: center;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.case-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 15px;
}

.case-item p {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
}

.case-tag {
    display: inline-block;
    padding: 4px 12px;
    background: #e60012;
    color: #fff;
    font-size: 12px;
    border-radius: 20px;
}

/* Home Certs */
.home-certs {
    padding: 80px 0;
}

.home-certs .cert-grid {
    grid-template-columns: repeat(4, 1fr);
}

/* Home Features */
.home-features {
    padding: 80px 0;
    background: url('../images/ppt_images/team/team.jpeg') center/cover no-repeat;
    position: relative;
}

.home-features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
}

.home-features .container {
    position: relative;
    z-index: 1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-item {
    background-color: #e60012;
    color: #fff;
    display: flex;
    align-items: center;
    padding: 30px 20px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: 40px;
    color: #fff;
    flex-shrink: 0;
    width: 60px;
    text-align: center;
    border-right: 1px solid rgba(255, 255, 255, 0.3);
    padding-right: 20px;
    margin-right: 20px;
}

.feature-content {
    flex: 1;
}

.feature-content h4 {
    font-size: 18px;
    margin-bottom: 8px;
    font-weight: normal;
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-content h4 .num {
    font-size: 28px;
    font-weight: bold;
}

.feature-content p {
    font-size: 13px;
    opacity: 0.9;
    line-height: 1.5;
    margin: 0;
}

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

.product-form-item {
    text-align: center;
    padding: 40px 20px;
    background: #f9f9f9;
    border-radius: 8px;
    transition: all 0.3s;
}

.product-form-item:hover {
    background: #1a2b5c;
    color: #fff;
}

.product-form-item:hover h4,
.product-form-item:hover p {
    color: #fff;
}

.product-form-item .product-icon {
    font-size: 60px;
    color: #e60012;
    margin-bottom: 20px;
}

.product-form-item h4 {
    font-size: 20px;
    margin-bottom: 10px;
}

.product-form-item p {
    font-size: 14px;
    color: #666;
}

/* Pain Point */
.pain-point {
    padding: 80px 0;
    background: #f9f9f9;
}

.comparison-grid {
    display: flex;
    gap: 40px;
}

.comparison-col {
    flex: 1;
    padding: 30px;
    border-radius: 8px;
}

.comparison-col.traditional {
    background: #fff;
}

.comparison-col.jerun {
    background: #1a2b5c;
    color: #fff;
}

.comparison-col h3 {
    font-size: 22px;
    margin-bottom: 25px;
    text-align: center;
}

.comparison-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.comparison-col.jerun .comparison-item {
    border-bottom-color: rgba(255,255,255,0.1);
}

.comparison-item i {
    font-size: 20px;
}

.comparison-col.traditional .comparison-item i {
    color: #999;
}

.comparison-col.jerun .comparison-item i {
    color: #4caf50;
}

.comparison-item span {
    font-size: 15px;
}

/* Home News */
.home-news {
    padding: 80px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.news-item {
    border: 1px solid #eee;
    transition: box-shadow 0.3s;
    border-radius: 8px;
    overflow: hidden;
}

.news-item:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.news-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.news-item h4 {
    font-size: 16px;
    color: #333;
    margin: 15px;
    font-weight: normal;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-item p {
    font-size: 14px;
    color: #666;
    margin: 0 15px 15px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.news-grid-4 .news-item {
    border: 1px solid #eee;
    transition: box-shadow 0.3s;
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
}

.news-grid-4 .news-item:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.news-grid-4 .news-item img {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.news-grid-4 .news-item h4 {
    font-size: 16px;
    color: #333;
    margin: 15px;
    font-weight: normal;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-grid-4 .news-item p {
    font-size: 14px;
    color: #666;
    margin: 0 15px 15px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 40px;
}

.pagination a, .pagination span {
    display: inline-block;
    padding: 5px 12px;
    margin: 0 5px;
    border: 1px solid #ddd;
    color: #666;
    font-size: 14px;
}

.pagination a:hover, .pagination .active {
    background-color: #e60012;
    color: #fff;
    border-color: #e60012;
}

.pagination .jump {
    margin-left: 20px;
    font-size: 14px;
    color: #666;
}

.pagination .jump input {
    width: 40px;
    height: 30px;
    border: 1px solid #ddd;
    text-align: center;
    margin: 0 5px;
}

.pagination .jump button {
    padding: 5px 15px;
    border: 1px solid #ddd;
    background-color: #fff;
    cursor: pointer;
}

/* Common Banner */
.page-banner {
    height: 300px;
    background-color: #1a2b5c;
    background-image: url('../images/page-banner.svg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
}

.page-banner h1 {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 10px;
}

.page-banner p {
    font-size: 16px;
    opacity: 0.8;
}

/* About Page */
.about-page-content {
    padding: 80px 0;
}

.about-text-full {
    max-width: 1000px;
    margin: 0 auto;
}

.about-text-full p {
    font-size: 16px;
    color: #333;
    line-height: 2;
    margin-bottom: 20px;
    text-indent: 2em;
}

/* Team Section */
.team-section {
    padding: 80px 0;
    background: #f9f9f9;
}

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

.team-item {
    display: flex;
    gap: 25px;
    padding: 30px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.team-avatar {
    width: 80px;
    height: 80px;
    background: #1a2b5c;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 30px;
    flex-shrink: 0;
}

.team-info h4 {
    font-size: 20px;
    color: #333;
    margin-bottom: 5px;
}

.team-title {
    font-size: 14px;
    color: #e60012;
    margin-bottom: 10px;
}

.team-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* Strength Section */
.strength-section {
    padding: 80px 0;
}

.strength-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.strength-item {
    text-align: center;
    padding: 30px 20px;
    background: #f9f9f9;
    border-radius: 8px;
}

.strength-num {
    font-size: 36px;
    font-weight: bold;
    color: #e60012;
    margin-bottom: 10px;
}

.strength-num span {
    font-size: 18px;
}

.strength-item p {
    font-size: 14px;
    color: #666;
}

/* Timeline Section */
.timeline-section {
    padding: 80px 0;
    background: #f9f9f9;
}

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

.timeline-item {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
    padding-left: 30px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 12px;
    height: 12px;
    background: #e60012;
    border-radius: 50%;
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 25px;
    width: 2px;
    height: calc(100% + 20px);
    background: #ddd;
}

.timeline-item:last-child::after {
    display: none;
}

.timeline-year {
    font-size: 24px;
    font-weight: bold;
    color: #1a2b5c;
    width: 120px;
    flex-shrink: 0;
}

.timeline-content h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.timeline-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* Cases Page */
.cases-page-content {
    padding: 80px 0;
}

.product-types-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.product-type-item {
    background: #f9f9f9;
    border-radius: 8px;
    overflow: hidden;
}

.product-type-img {
    height: 120px;
    background: #1a2b5c;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 50px;
}

.product-type-info {
    padding: 25px;
}

.product-type-info h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 10px;
}

.product-type-info p {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
}

.product-type-info ul {
    padding-left: 20px;
}

.product-type-info li {
    font-size: 14px;
    color: #555;
    margin-bottom: 8px;
    list-style-type: disc;
}

/* System Solutions */
.system-solutions {
    padding: 80px 0;
    background: #f9f9f9;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.solution-item {
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: 8px;
    transition: all 0.3s;
}

.solution-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.solution-icon {
    font-size: 50px;
    color: #e60012;
    margin-bottom: 20px;
}

.solution-item h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.solution-item p {
    font-size: 14px;
    color: #666;
}

/* Scene Grid */
.scene-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.scene-item {
    display: flex;
    gap: 25px;
    padding: 25px;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    transition: all 0.3s;
}

.scene-item:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.scene-img {
    width: 180px;
    flex-shrink: 0;
}

.scene-img img {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: 8px;
}

.scene-content h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 8px;
}

.scene-tag {
    display: inline-block;
    padding: 3px 10px;
    background: #e60012;
    color: #fff;
    font-size: 12px;
    border-radius: 20px;
    margin-bottom: 10px;
}

.scene-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* Scenarios Page (PHP version) */
.scenarios-page {
    padding: 80px 0;
}

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

.scenario-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.scenario-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.scenario-image {
    height: 200px;
    overflow: hidden;
    background: #f5f5f5;
}

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

.scenario-icon {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.scenario-content {
    padding: 25px;
}

.scenario-content h3 {
    font-size: 20px;
    color: #333;
    margin-bottom: 15px;
}

.scenario-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

.scenario-detail {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #eee;
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

.scenario-detail ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.scenario-detail ul li {
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
}

.scenario-detail ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #e60012;
    font-weight: bold;
}

.scenario-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: linear-gradient(135deg, #e60012 0%, #ff4d4d 100%);
    color: #fff;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    box-shadow: 0 2px 10px rgba(230, 0, 18, 0.4);
}

.scenario-image {
    height: 200px;
    overflow: hidden;
    background: #f5f5f5;
    position: relative;
}

.scenario-content h3 i {
    margin-right: 10px;
    color: #e60012;
}

.scenarios-advantages {
    margin-top: 80px;
    padding: 60px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 16px;
}

.scenarios-advantages h3 {
    text-align: center;
    font-size: 28px;
    color: #333;
    margin-bottom: 50px;
}

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

.advantage-item {
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.advantage-item i {
    font-size: 48px;
    color: #e60012;
    margin-bottom: 20px;
}

.advantage-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.advantage-item p {
    font-size: 14px;
    color: #666;
}

/* Product Page Enhancements */
.product-tag {
    position: absolute;
    top: 15px;
    left: 15px;
    background: linear-gradient(135deg, #e60012 0%, #ff4d4d 100%);
    color: #fff;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    box-shadow: 0 2px 8px rgba(230, 0, 18, 0.4);
    z-index: 10;
}

.product-card .product-image {
    position: relative;
    overflow: hidden;
}

.product-category {
    margin-bottom: 80px;
}

.products-advantages {
    margin-top: 60px;
    padding: 60px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 16px;
}

.products-advantages h3 {
    text-align: center;
    font-size: 28px;
    color: #333;
    margin-bottom: 50px;
}

.products-cta {
    margin-top: 60px;
    padding: 60px;
    background: linear-gradient(135deg, #1a2b5c 0%, #2a3b6c 100%);
    border-radius: 16px;
    text-align: center;
}

.cta-content h3 {
    color: #fff;
    font-size: 28px;
    margin-bottom: 15px;
}

.cta-content p {
    color: rgba(255,255,255,0.8);
    font-size: 16px;
    margin-bottom: 30px;
}

.cta-content .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.section-cta {
    text-align: center;
    margin-top: 40px;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 35px;
    border: 2px solid #fff;
    color: #fff;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-outline:hover {
    background: #fff;
    color: #1a2b5c;
}

.home-mining-cases .btn-outline {
    border-color: #fff;
    color: #fff;
}

.home-mining-cases .btn-outline:hover {
    background: #fff;
    color: #1a2b5c;
}

.btn-primary {
    background: linear-gradient(135deg, #e60012 0%, #ff4d4d 100%);
    color: #fff;
    padding: 15px 40px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(230, 0, 18, 0.4);
    color: #fff;
}

.section-title h2 i {
    margin-right: 10px;
    color: #e60012;
}

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

.section-title h2 {
    font-size: 36px;
    color: #333;
    margin-bottom: 15px;
}

.section-title p {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
}

.section-title .line {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #e60012 0%, #ff4d4d 100%);
    margin: 0 auto;
    border-radius: 2px;
}

/* Tech Compare */
.tech-compare {
    padding: 80px 0;
    background: #f9f9f9;
}

.compare-table {
    overflow-x: auto;
}

.compare-table table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

.compare-table th,
.compare-table td {
    padding: 15px 20px;
    text-align: center;
    border: 1px solid #eee;
}

.compare-table th {
    background: #1a2b5c;
    color: #fff;
    font-weight: normal;
}

.compare-table td:first-child {
    background: #f5f5f5;
    font-weight: bold;
}

.compare-table tr:hover td {
    background: #f9f9f9;
}

/* Certs Page */
.certs-page-content {
    padding: 80px 0;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.cert-item {
    text-align: center;
    border: 1px solid #eee;
    padding: 10px;
    transition: box-shadow 0.3s;
    border-radius: 8px;
}

.cert-item:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.cert-item img {
    width: 100%;
    height: 150px;
    object-fit: contain;
    margin-bottom: 10px;
}

.cert-item p {
    font-size: 14px;
    color: #333;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Patent Section */
.patent-section {
    padding: 80px 0;
    background: #f9f9f9;
}

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

.patent-item {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: #fff;
    border-radius: 8px;
}

.patent-icon {
    font-size: 40px;
    color: #e60012;
    flex-shrink: 0;
}

.patent-info h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.patent-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* Research Section */
.research-section {
    padding: 80px 0;
}

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

.stat-item {
    text-align: center;
    padding: 40px 20px;
    background: #1a2b5c;
    border-radius: 8px;
    color: #fff;
}

.stat-num {
    font-size: 48px;
    font-weight: bold;
    color: #e60012;
    margin-bottom: 15px;
}

.stat-num span {
    font-size: 24px;
}

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

/* Partner Section */
.partner-section {
    padding: 80px 0;
    background: #f9f9f9;
}

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

.partner-item {
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: 8px;
    transition: all 0.3s;
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.partner-logo {
    width: 80px;
    height: 80px;
    background: #1a2b5c;
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 30px;
}

.partner-item p {
    font-size: 16px;
    color: #333;
    margin-bottom: 8px;
}

.partner-item span {
    font-size: 13px;
    color: #666;
}

/* Contact Page */
.contact-page-content {
    padding: 80px 0;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.contact-info-item {
    text-align: center;
    padding: 40px 20px;
    background-color: #f9f9f9;
    transition: transform 0.3s, box-shadow 0.3s;
    border-radius: 8px;
}

.contact-info-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    background-color: #fff;
}

.contact-info-item .icon {
    font-size: 50px;
    color: #e60012;
    margin-bottom: 20px;
}

.contact-info-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
    font-weight: normal;
}

.contact-info-item p {
    font-size: 16px;
    color: #666;
}

.contact-info-item p.highlight {
    font-size: 24px;
    font-weight: bold;
    color: #e60012;
}

/* Cooperation Banner */
.cooperation-banner {
    background: linear-gradient(135deg, #1a2b5c, #2a4b8c);
    padding: 60px 0;
    margin-bottom: 40px;
}

.cooperation-content {
    text-align: center;
    color: #fff;
}

.cooperation-content h2 {
    font-size: 32px;
    margin-bottom: 15px;
}

.cooperation-content p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 25px;
}

/* Cooperation Section */
.cooperation-section {
    padding: 60px 0;
    background: #f9f9f9;
    margin-top: 40px;
}

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

.cooperation-item {
    text-align: center;
    padding: 40px 20px;
    background: #fff;
    border-radius: 8px;
    transition: all 0.3s;
}

.cooperation-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.cooperation-icon {
    font-size: 50px;
    color: #e60012;
    margin-bottom: 20px;
}

.cooperation-item h4 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
}

.cooperation-item p {
    font-size: 14px;
    color: #666;
}

/* Map Container */
.map-container {
    width: 100%;
    height: 400px;
    background-color: #eee;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

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

.map-overlay {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(26,43,92,0.95);
    color: #fff;
    padding: 20px 30px;
    border-radius: 8px;
}

.map-overlay p {
    margin-bottom: 8px;
    font-size: 14px;
}

.map-overlay p:last-child {
    margin-bottom: 0;
}

/* News Page */
.news-page-content {
    padding: 80px 0;
}

.news-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.news-list-item {
    display: flex;
    gap: 20px;
    border: 1px solid #eee;
    padding: 15px;
    transition: box-shadow 0.3s;
    border-radius: 8px;
}

.news-list-item:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.news-list-item .img {
    flex-shrink: 0;
}

.news-list-item .img img {
    width: 200px;
    height: 130px;
    object-fit: cover;
    border-radius: 8px;
}

.news-list-item .info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.news-list-item h4 {
    font-size: 16px;
    margin-bottom: 10px;
    font-weight: normal;
}

.news-list-item h4 a {
    color: #333;
}

.news-list-item h4 a:hover {
    color: #e60012;
}

.news-list-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-list-item .date {
    font-size: 12px;
    color: #999;
    margin-top: 10px;
}

/* Responsive */
@media (max-width: 1200px) {
    .container {
        width: 95%;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        padding: 10px 0;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav li {
        margin: 5px 10px;
    }
    
    .phone {
        margin-top: 10px;
        font-size: 18px;
    }
    
    .about-content,
    .comparison-grid,
    .team-grid,
    .scene-grid,
    .news-list,
    .news-grid {
        flex-direction: column;
        grid-template-columns: 1fr;
    }
    
    .service-grid,
    .product-forms,
    .solution-grid,
    .contact-info-grid,
    .cooperation-grid,
    .partner-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .case-grid,
    .product-types-grid,
    .strength-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .tech-params,
    .research-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-item,
    .patent-item,
    .scene-item,
    .news-list-item,
    .comparison-col {
        flex-direction: column;
    }
    
    .scene-img {
        width: 100%;
    }
    
    .scene-img img {
        height: 150px;
    }
}

/* Animation Enhancement Classes */
.news-item {
    cursor: pointer;
}

.service-item img {
    transition: transform 0.3s;
}

.cert-item {
    cursor: pointer;
    overflow: hidden;
}

.cert-item img {
    transition: transform 0.3s;
}

.strength-item {
    transition: transform 0.3s;
}

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

/* Smooth scroll */
html {
    scroll-behavior: smooth;
}

/* Nav link hover animation */
.nav a {
    transition: color 0.3s, transform 0.3s;
}

.nav a::after {
    transition: width 0.3s, background-color 0.3s;
}

/* Product tag animation */
.product-tag {
    transition: background-color 0.3s, transform 0.2s;
}

/* About section image hover */
.about-img {
    overflow: hidden;
    border-radius: 10px;
}

.about-img img {
    transition: transform 0.5s;
}

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

.home-banner {
    position: relative;
}

.home-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 43, 92, 0.2);
    z-index: 1;
}

.home-banner .container {
    position: relative;
    z-index: 2;
}

/* Pulse animation for CTA buttons */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(230, 0, 18, 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(230, 0, 18, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(230, 0, 18, 0);
    }
}

.btn-primary {
    animation: pulse 2s infinite;
}

/* Loading animation for page */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

body {
    animation: fadeIn 0.5s ease-out;
}

/* 产品卡片 */
.product-card {
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.12);
}

.product-image {
    height: 200px;
    overflow: hidden;
    background: #f5f5f5;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

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

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
    font-weight: normal;
}

.product-info p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-specs {
    margin-bottom: 15px;
}

.product-specs small {
    color: #999;
    font-size: 12px;
}

.btn-detail {
    display: inline-block;
    padding: 8px 20px;
    background: #e60012;
    color: #fff;
    border-radius: 4px;
    font-size: 14px;
    transition: background 0.3s;
}

.btn-detail:hover {
    background: #cc0010;
    color: #fff;
}

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

.products-page {
    padding: 80px 0;
}

/* ========== 产品详情页 ========== */
.product-detail {
    padding: 60px 0;
}

.product-detail .breadcrumb {
    margin-bottom: 30px;
    padding: 15px 0;
    font-size: 14px;
    color: #666;
    border-bottom: 1px solid #eee;
}

.product-detail .breadcrumb a {
    color: #666;
    text-decoration: none;
}

.product-detail .breadcrumb a:hover {
    color: #e60012;
}

.product-detail .detail-content {
    display: flex;
    gap: 50px;
    margin-bottom: 50px;
}

.product-detail .detail-image {
    flex: 0 0 45%;
    max-width: 45%;
}

.product-detail .detail-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.product-detail .detail-info {
    flex: 1;
}

.product-detail .detail-info h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e60012;
}

.product-detail .detail-desc,
.product-detail .detail-specs {
    margin-bottom: 25px;
}

.product-detail .detail-desc h4,
.product-detail .detail-specs h4 {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
    font-weight: 600;
}

.product-detail .detail-desc p,
.product-detail .detail-specs p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
}

.product-detail .detail-contact {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 8px;
    margin-top: 30px;
}

.product-detail .detail-contact p {
    margin-bottom: 15px;
    color: #666;
}

.product-detail .btn-contact {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    background: #e60012;
    color: #fff;
    border-radius: 4px;
    text-decoration: none;
    font-size: 15px;
    transition: background 0.3s;
}

.product-detail .btn-contact:hover {
    background: #cc0010;
    color: #fff;
}

.product-detail .detail-main {
    margin-bottom: 40px;
    padding: 40px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.product-detail .detail-main h3 {
    font-size: 22px;
    color: #333;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

.product-detail .detail-content-text {
    font-size: 15px;
    color: #555;
    line-height: 1.9;
}

.product-detail .detail-content-text p {
    margin-bottom: 15px;
}

.product-detail .detail-content-text img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin: 20px 0;
}

.product-detail .detail-back {
    text-align: center;
    margin-top: 40px;
}

.product-detail .btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    background: #1a2b5c;
    color: #fff;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    transition: background 0.3s;
}

.product-detail .btn-back:hover {
    background: #2a3b6c;
    color: #fff;
}

/* 响应式 */
@media (max-width: 768px) {
    .product-detail .detail-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .product-detail .detail-image {
        flex: none;
        max-width: 100%;
    }
    
    .product-detail .detail-info h2 {
        font-size: 22px;
    }
    
    .product-detail .detail-main {
        padding: 25px;
    }
}

/* ========== 移动端优化 ========== */
@media (max-width: 768px) {
    /* 容器自适应 */
    .container {
        width: 100%;
        padding: 0 15px;
    }

    /* 顶部导航 */
    .header {
        height: auto;
        min-height: 60px;
    }

    .header .container {
        flex-direction: column;
        padding: 10px 15px;
    }

    .header-top {
        display: flex;
        justify-content: space-between;
        align-items: center;
        width: 100%;
    }

    .header-right {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .mobile-menu-btn {
        display: block;
    }

    .logo {
        font-size: 16px;
    }

    .logo div {
        width: 35px !important;
        height: 35px !important;
        font-size: 12px !important;
    }

    .nav {
        display: none;
        flex-direction: column;
        width: 100%;
        margin-top: 10px;
        padding: 0;
        background: #fff;
    }

    .nav.show {
        display: flex;
    }

    .nav li {
        margin: 0;
        width: 100%;
    }

    .nav a {
        display: block;
        padding: 12px 0;
        font-size: 14px;
        border-bottom: 1px solid #f0f0f0;
        text-align: center;
    }

    .phone {
        font-size: 14px;
    }

    .phone i {
        font-size: 16px;
    }

    /* Banner */
    .home-banner {
        height: auto;
        min-height: 400px;
        padding: 60px 15px;
    }

    .home-banner h2 {
        font-size: 24px;
    }

    .banner-subtitle {
        font-size: 14px;
    }

    .product-tag {
        padding: 10px 20px;
        font-size: 14px;
    }

    .page-banner {
        height: 200px;
    }

    .page-banner h1 {
        font-size: 24px;
    }

    .page-banner p {
        font-size: 14px;
    }

    @media (max-width: 768px) {
    .container {
        width: 100%;
        padding: 0 15px;
    }
    height: 300px;
    background-color: #1a2b5c;
    background-image: url('../images/page-banner.svg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: #333;
    cursor: pointer;
    padding: 5px 10px;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}
    .home-about,
    .home-services,
    .home-cases,
    .home-certs,
    .home-features,
    .home-news,
    .about-page-content,
    .team-section,
    .strength-section,
    .timeline-section,
    .cases-page-content,
    .system-solutions,
    .scenarios-page,
    .tech-compare,
    .certs-page-content,
    .patent-section,
    .research-section,
    .partner-section,
    .contact-page-content,
    .cooperation-section,
    .news-page-content,
    .pain-point {
        padding: 40px 0;
    }

    /* 标题 */
    .section-title h2 {
        font-size: 22px;
    }

    .section-title p {
        font-size: 14px;
    }

    /* 关于页面 */
    .about-content {
        flex-direction: column;
        gap: 20px;
    }

    .about-text {
        width: 100%;
    }

    .about-btns .btn {
        display: block;
        width: 100%;
        margin: 0 0 10px 0;
        text-align: center;
    }

    /* 团队网格 */
    .team-grid {
        grid-template-columns: 1fr;
    }

    .team-item {
        flex-direction: column;
        text-align: center;
    }

    .team-avatar {
        margin: 0 auto;
    }

    /* 优势网格 */
    .strength-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .strength-item {
        padding: 20px 10px;
    }

    .strength-num {
        font-size: 28px;
    }

    /* 时间线 */
    .timeline {
        padding-left: 30px;
    }

    .timeline-item {
        padding-left: 20px;
    }

    .timeline-year {
        width: 80px;
        font-size: 18px;
    }

    /* 场景网格 */
    .scene-grid,
    .scenarios-grid {
        grid-template-columns: 1fr;
    }

    .scene-item {
        flex-direction: column;
    }

    .scene-img {
        width: 100%;
    }

    .scene-img img {
        height: 150px;
    }

    /* 新闻列表 */
    .news-list {
        grid-template-columns: 1fr;
    }

    .news-list-item {
        flex-direction: column;
    }

    .news-list-item .img img {
        width: 100%;
        height: 180px;
    }

    /* 服务网格 */
    .service-grid,
    .service-grid-page {
        grid-template-columns: 1fr;
    }

    .service-card {
        flex-direction: column;
        height: auto;
    }

    .service-card .service-img {
        width: 100%;
        height: 200px;
    }

    .service-card .service-body {
        min-height: unset;
    }

    .service-item img {
        height: 160px;
    }

    /* 产品类型 */
    .product-types-grid {
        grid-template-columns: 1fr;
    }

    /* 解决方案 */
    .solution-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    /* 证书网格 */
    .cert-grid,
    .home-certs .cert-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .cert-item img {
        height: 100px;
    }

    /* 技术参数 */
    .tech-params {
        gap: 15px;
    }

    .param-item {
        padding: 20px;
        flex: 1 1 45%;
    }

    .param-value {
        font-size: 32px;
    }

    /* 对比表格 */
    .comparison-grid {
        flex-direction: column;
        gap: 20px;
    }

    /* 专利网格 */
    .patent-grid {
        grid-template-columns: 1fr;
    }

    .patent-item {
        flex-direction: column;
        text-align: center;
    }

    .patent-icon {
        margin: 0 auto 15px;
    }

    /* 合作伙伴 */
    .partner-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    /* 优势网格 */
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .advantage-item {
        padding: 20px 15px;
    }

    .advantage-item i {
        font-size: 36px;
    }

    /* 联系信息 */
    .contact-info-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .contact-info-item {
        padding: 20px 10px;
    }

    .contact-info-item .icon {
        font-size: 36px;
    }

    .contact-info-item h4 {
        font-size: 14px;
    }

    .contact-info-item p {
        font-size: 13px;
    }

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

    /* 合作网格 */
    .cooperation-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .cooperation-item {
        padding: 20px 10px;
    }

    .cooperation-content h2 {
        font-size: 22px;
    }

    .cooperation-content p {
        font-size: 14px;
    }

    /* 研究统计 */
    .research-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .stat-item {
        padding: 25px 15px;
    }

    .stat-num {
        font-size: 32px;
    }

    /* 新闻网格 */
    .news-grid {
        grid-template-columns: 1fr;
    }

    .news-grid-4 {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    /* 地图 */
    .map-container {
        height: 250px;
    }

    /* 页脚 */
    .footer {
        padding: 40px 0 20px;
    }

    .footer-links {
        flex-direction: column;
        gap: 30px;
    }

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

    .footer-col h4 {
        margin-bottom: 15px;
    }

    .footer-col.contact .qrcode {
        margin: 10px auto 0;
    }

    /* 按钮 */
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }

    /* 案例网格 */
    .case-grid {
        grid-template-columns: 1fr;
    }

    /* 产品网格 */
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .product-image {
        height: 150px;
    }

    .product-info {
        padding: 15px;
    }

    .product-info h3 {
        font-size: 14px;
    }

    .btn-detail {
        padding: 6px 15px;
        font-size: 12px;
    }

    .products-page {
        padding: 40px 0;
    }

    /* 产品形态 */
    .product-forms {
        grid-template-columns: 1fr;
    }

    /* 特性网格 */
    .features-grid {
        grid-template-columns: 1fr;
    }

    /* 矿业案例 */
    .mining-grid {
        grid-template-columns: repeat(2, 1fr);
        max-height: none;
    }

    /* 分页 */
    .pagination a,
    .pagination span {
        padding: 5px 10px;
        font-size: 12px;
    }

    /* 合作案例 */
    .tech-compare {
        overflow-x: auto;
    }

    .compare-table {
        min-width: 500px;
    }

    /* 表单 */
    .form-row {
        flex-direction: column;
    }

    .form-group-inline {
        width: 100%;
    }

    .products-advantages,
    .products-cta {
        padding: 30px 20px;
    }

    .products-advantages h3,
    .cta-content h3 {
        font-size: 22px;
    }

    .cta-content .btn {
        display: block;
        width: 100%;
    }
}

/* 更小屏幕 */
@media (max-width: 480px) {
    .home-banner h2 {
        font-size: 20px;
    }

    .banner-subtitle {
        font-size: 13px;
    }

    .product-tag {
        padding: 8px 16px;
        font-size: 13px;
    }

    .page-banner {
        height: 160px;
    }

    .page-banner h1 {
        font-size: 20px;
    }

    .strength-grid,
    .partner-grid,
    .cert-grid,
    .contact-info-grid,
    .cooperation-grid,
    .research-stats,
    .news-grid-4,
    .solution-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .scenarios-advantages {
        padding: 30px 20px;
    }

    .scenarios-advantages h3 {
        font-size: 22px;
        margin-bottom: 30px;
    }

    .advantage-item {
        padding: 20px 15px;
    }

    .advantage-item i {
        font-size: 40px;
    }

    .advantage-item h4 {
        font-size: 16px;
    }

    .advantage-item p {
        font-size: 13px;
    }

    .nav a {
        font-size: 12px;
    }

    .nav li {
        margin: 0 5px;
    }

    .phone {
        font-size: 14px;
    }

    .section-title h2 {
        font-size: 20px;
    }

    .cooperation-banner .btn {
        display: block;
        width: 80%;
        margin: 0 auto;
    }
}