/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
}

/* 导航栏 */
nav {
    background: linear-gradient(135deg, #0a2463, #1e3a8a);
    color: #fff;
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    color: #fff;
    text-decoration: none;
    font-size: 28px;
    font-weight: bold;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: #4cc9f0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #4cc9f0;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* 首页头部 */
header {
    background: linear-gradient(135deg, rgba(10, 36, 99, 0.9), rgba(30, 58, 138, 0.9)), url('../images/header-bg.jpg');
    background-size: cover;
    background-position: center;
    color: #fff;
    padding: 150px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(76, 201, 240, 0.1), rgba(124, 58, 237, 0.1));
    z-index: 1;
}

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

header h1 {
    font-size: 56px;
    margin-bottom: 25px;
    font-weight: 700;
    letter-spacing: 1px;
}

header p {
    font-size: 20px;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    background: linear-gradient(135deg, #4cc9f0, #3a0ca3);
    color: #fff;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 30px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(76, 201, 240, 0.3);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(76, 201, 240, 0.4);
    background: linear-gradient(135deg, #3a0ca3, #4cc9f0);
}

/* 核心优势 */
.advantages {
    padding: 80px 0;
    background: #f8f9fa;
    position: relative;
}

.advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4cc9f0, #3a0ca3);
}

.advantages h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
    font-weight: 700;
    color: #0a2463;
    position: relative;
}

.advantages h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, #4cc9f0, #3a0ca3);
}

.advantage-items {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.advantage-item {
    flex: 1;
    min-width: 300px;
    background: #fff;
    padding: 40px;
    margin: 10px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    text-align: center;
    transition: all 0.3s ease;
    border-top: 4px solid transparent;
    background: linear-gradient(white, white) padding-box, linear-gradient(135deg, #4cc9f0, #3a0ca3) border-box;
}

.advantage-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.advantage-item h3 {
    margin-bottom: 20px;
    color: #0a2463;
    font-size: 22px;
    font-weight: 600;
}

.advantage-item p {
    color: #666;
    line-height: 1.7;
}

/* 热门产品 */
.hot-products {
    padding: 80px 0;
    background: #fff;
}

.hot-products h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
    font-weight: 700;
    color: #0a2463;
    position: relative;
}

.hot-products h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, #4cc9f0, #3a0ca3);
}

.product-list {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.product-item {
    flex: 1;
    min-width: 300px;
    background: #f8f9fa;
    padding: 40px;
    margin: 10px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(76, 201, 240, 0.2);
    position: relative;
    overflow: hidden;
}

.product-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(76, 201, 240, 0.1), transparent);
    transition: left 0.5s ease;
}

.product-item:hover::before {
    left: 100%;
}

.product-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    border-color: #4cc9f0;
}

.product-item a {
    text-decoration: none;
    color: #333;
    display: block;
    height: 100%;
}

.product-item h3 {
    margin-bottom: 15px;
    color: #0a2463;
    font-size: 20px;
    font-weight: 600;
}

.product-item p {
    color: #666;
}

/* 解决方案 */
.solutions {
    padding: 80px 0;
    background: linear-gradient(135deg, #0a2463, #1e3a8a);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.solutions::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(76, 201, 240, 0.1), rgba(124, 58, 237, 0.1));
}

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

.solutions h2 {
    margin-bottom: 25px;
    font-size: 36px;
    font-weight: 700;
}

.solutions p {
    margin-bottom: 40px;
    font-size: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

/* 页脚 */
footer {
    background: #0a2463;
    color: #fff;
    padding: 60px 0 30px;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4cc9f0, #3a0ca3);
}

.footer-content {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    margin-bottom: 40px;
    gap: 40px;
}

.footer-item {
    flex: 1;
    min-width: 250px;
    margin: 10px;
}

.footer-item h3 {
    margin-bottom: 20px;
    color: #4cc9f0;
    font-size: 18px;
    font-weight: 600;
    position: relative;
    padding-bottom: 10px;
}

.footer-item h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: #4cc9f0;
}

.footer-item p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

.footer-item ul {
    list-style: none;
}

.footer-item ul li {
    margin-bottom: 12px;
}

.footer-item ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
    display: inline-block;
    position: relative;
    padding-left: 15px;
}

.footer-item ul li a::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #4cc9f0;
    transition: transform 0.3s ease;
}

.footer-item ul li a:hover {
    color: #4cc9f0;
}

.footer-item ul li a:hover::before {
    transform: translateX(5px);
}

.footer-links {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    margin-top: 10px;
    text-align: center;
}

.footer-links h3 {
    margin-bottom: 14px;
    color: #4cc9f0;
    font-size: 16px;
    font-weight: 600;
}

.footer-links ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links ul li a:hover {
    color: #4cc9f0;
}

.copyright {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    color: rgba(255, 255, 255, 0.6);
}

/* 产品中心 */
.product-center {
    padding: 80px 0;
    background: #fff;
}

.product-center h1 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 36px;
    font-weight: 700;
    color: #0a2463;
    position: relative;
}

.product-center p {
    text-align: center;
    margin-bottom: 50px;
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.product-category {
    margin-bottom: 60px;
}

.product-category h2 {
    margin-bottom: 30px;
    font-size: 24px;
    font-weight: 600;
    color: #0a2463;
    position: relative;
    padding-bottom: 10px;
}

.product-category h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, #4cc9f0, #3a0ca3);
}

.brand-intro {
    font-size: 17px;
    color: #555;
    line-height: 1.8;
    background: linear-gradient(135deg, rgba(76, 201, 240, 0.08), rgba(58, 12, 163, 0.05));
    padding: 25px 30px;
    border-radius: 10px;
    border-left: 4px solid #4cc9f0;
    margin-bottom: 30px;
    text-align: left;
}

.product-card {
    flex: 1;
    min-width: 350px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(76, 201, 240, 0.15);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.15);
    border-color: #4cc9f0;
}

.product-card-image {
    width: 100%;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.product-card-image.lto9 {
    background: linear-gradient(135deg, #0f172a, #1e293b);
}

.product-card-image.lto8 {
    background: linear-gradient(135deg, #1e3a8a, #312e81);
}

.product-card-image.lto7 {
    background: linear-gradient(135deg, #3730a3, #4338ca);
}

.product-card-image.lto6 {
    background: linear-gradient(135deg, #4c1d95, #5b21b6);
}

.product-card-image.lto5 {
    background: linear-gradient(135deg, #581c87, #7c3aed);
}

.product-card-image.lto4 {
    background: linear-gradient(135deg, #701a75, #a855f7);
}

.product-card-image.lto3 {
    background: linear-gradient(135deg, #831843, #db2777);
}

.product-card-image.lto2 {
    background: linear-gradient(135deg, #9f1239, #e11d48);
}

.product-card-image.lto1 {
    background: linear-gradient(135deg, #b91c1c, #ef4444);
}

.product-card-image.lto10 {
    background: linear-gradient(135deg, #0c4a6e, #0369a1);
}

.product-card-image.lto11 {
    background: linear-gradient(135deg, #134e4a, #0d9488);
}

.product-card-image.lto12 {
    background: linear-gradient(135deg, #052e16, #15803d);
}

.product-card-image picture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.product-card-image .product-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

.product-card-image .product-img.loaded {
    display: block;
}

.product-card-image .tape-icon {
    color: rgba(255,255,255,0.95);
    font-size: 42px;
    font-weight: bold;
    text-align: center;
    z-index: 1;
    transition: opacity 0.3s ease;
}

.product-card-image:has(.product-img.loaded) .tape-icon {
    opacity: 0;
    z-index: 0;
}

.product-card-image .tape-icon span {
    display: block;
    font-size: 28px;
    margin-top: 8px;
    opacity: 0.9;
}

.product-card-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.15) 0%, transparent 60%);
    z-index: 1;
}

.product-card-content {
    padding: 25px;
}

.product-card-content h3 {
    color: #0a2463;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.product-card-content .year {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
    display: inline-block;
    background: rgba(76, 201, 240, 0.1);
    padding: 4px 12px;
    border-radius: 15px;
}

.product-card-content .badge-upcoming {
    display: inline-block;
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #fff;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 12px;
    margin-left: 10px;
    font-weight: normal;
    vertical-align: middle;
}

.product-card-content .product-desc {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.product-specs {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 15px;
}

.product-specs h4 {
    color: #0a2463;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-specs ul {
    list-style: none;
    padding: 0;
}

.product-specs li {
    color: #555;
    padding: 6px 0;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    font-size: 14px;
    display: flex;
    justify-content: space-between;
}

.product-specs li:last-child {
    border-bottom: none;
}

.product-specs .spec-label {
    color: #666;
    font-weight: 500;
}

.product-specs .spec-value {
    color: #0a2463;
    font-weight: 600;
}

.category-list {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.category-item {
    flex: 1;
    min-width: 300px;
    background: #f8f9fa;
    padding: 40px;
    margin: 10px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(76, 201, 240, 0.2);
    position: relative;
    overflow: hidden;
}

.category-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(76, 201, 240, 0.1), transparent);
    transition: left 0.5s ease;
}

.category-item:hover::before {
    left: 100%;
}

.category-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    border-color: #4cc9f0;
}

.category-item a {
    text-decoration: none;
    color: #333;
    display: block;
    height: 100%;
}

.category-item h3 {
    margin-bottom: 15px;
    color: #0a2463;
    font-size: 20px;
    font-weight: 600;
}

.category-item p {
    color: #666;
    text-align: center;
    margin-bottom: 0;
}

.tool-section-divider {
    margin: 60px 0 30px;
    text-align: center;
}
.tool-section-divider h2 {
    font-size: 28px;
    font-weight: 700;
    color: #0a2463;
    margin-bottom: 10px;
}
.tool-section-divider p {
    font-size: 16px;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}
.tool-brand-tag {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin: 8px 0 10px;
}
.tool-brand-tag.ibm { background: #dbeafe; color: #1e40af; }
.tool-brand-tag.hpe { background: #d1fae5; color: #065f46; }
.tool-brand-tag.quantum { background: #ffedd5; color: #9a3412; }
.download-badge {
    display: inline-block;
    margin-top: 12px;
    padding: 5px 16px;
    background: linear-gradient(135deg, #4cc9f0, #0a2463);
    color: #fff;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.tool-download .download-badge {
    display: inline-block;
}
.tool-detail-page {
    padding: 60px 0;
    background: #fff;
}
.tool-detail-page .page-title {
    font-size: 32px;
    font-weight: 700;
    color: #0a2463;
    margin-bottom: 8px;
}
.tool-detail-page .page-subtitle {
    font-size: 16px;
    color: #6b7280;
    margin-bottom: 30px;
}
.tool-detail-page article {
    max-width: 860px;
    margin: 0 auto;
}
.tool-detail-page article h2 {
    font-size: 22px;
    font-weight: 700;
    color: #0a2463;
    margin: 36px 0 14px;
    padding-bottom: 8px;
    border-bottom: 2px solid #e5e7eb;
}
.tool-detail-page article h3 {
    font-size: 18px;
    font-weight: 600;
    color: #1e3a8a;
    margin: 22px 0 8px;
}
.tool-detail-page article p {
    font-size: 16px;
    line-height: 1.85;
    color: #374151;
    margin-bottom: 14px;
}
.tool-detail-page article ul, .tool-detail-page article ol {
    margin: 10px 0 18px 20px;
}
.tool-detail-page article ul li, .tool-detail-page article ol li {
    font-size: 16px;
    line-height: 1.85;
    color: #4b5563;
    margin-bottom: 8px;
}
.tool-detail-page article strong {
    color: #0a2463;
}
.tool-detail-page .download-section {
    margin: 30px 0;
    padding: 28px;
    background: #f0f9ff;
    border-radius: 12px;
    border: 2px dashed #4cc9f0;
    text-align: center;
}
.tool-detail-page .download-section h3 {
    font-size: 20px;
    font-weight: 700;
    color: #0a2463;
    margin-bottom: 8px;
}
.tool-detail-page .download-section p {
    color: #6b7280;
    margin-bottom: 16px;
}
.tool-detail-page .download-btn {
    display: inline-block;
    padding: 12px 32px;
    background: linear-gradient(135deg, #0a2463, #1e3a8a);
    color: #fff !important;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin: 8px;
}
.tool-detail-page .download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(10,36,99,0.25);
}
.tool-detail-page .download-btn.secondary {
    background: #fff;
    color: #0a2463 !important;
    border: 2px solid #0a2463;
}
.tool-detail-page .download-btn.secondary:hover {
    background: #f0f9ff;
}
.tool-detail-page .version-table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    background: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
}
.tool-detail-page .version-table th {
    background: #0a2463;
    color: #fff;
    padding: 10px 14px;
    font-size: 14px;
    text-align: left;
}
.tool-detail-page .version-table td {
    padding: 10px 14px;
    font-size: 14px;
    border-bottom: 1px solid #e5e7eb;
}
.tool-detail-page .back-link {
    display: inline-block;
    margin-top: 40px;
    color: #4cc9f0;
    font-weight: 600;
    text-decoration: none;
    font-size: 15px;
}
.tool-detail-page .back-link:hover {
    color: #0a2463;
}
.tool-detail-page .back-link::before {
    content: '← ';
}

/* 品牌型号对照表 */
.brand-model-table {
    margin-top: 20px;
}

.brand-model-table table {
    width: 100%;
    border-collapse: collapse;
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.brand-model-table th,
.brand-model-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.brand-model-table th {
    background: linear-gradient(135deg, #0a2463, #1e3a8a);
    color: #fff;
    font-weight: 600;
}

.brand-model-table tr:hover {
    background: rgba(76, 201, 240, 0.05);
}

/* 产品聚合页 */
.product-aggregation {
    padding: 80px 0;
    background: #fff;
}

.product-aggregation h1 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 36px;
    font-weight: 700;
    color: #0a2463;
    position: relative;
}

.product-aggregation .intro {
    text-align: center;
    margin-bottom: 50px;
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.tech-analysis,
.param-comparison,
.brand-list {
    margin-bottom: 60px;
}

.tech-analysis h2,
.param-comparison h2,
.brand-list h2 {
    margin-bottom: 30px;
    font-size: 24px;
    font-weight: 600;
    color: #0a2463;
    position: relative;
    padding-bottom: 10px;
}

.tech-analysis h2::after,
.param-comparison h2::after,
.brand-list h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, #4cc9f0, #3a0ca3);
}

.tech-analysis p {
    margin-bottom: 20px;
    line-height: 1.7;
    color: #666;
}

.param-comparison table {
    width: 100%;
    border-collapse: collapse;
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.param-comparison th,
.param-comparison td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.param-comparison th {
    background: linear-gradient(135deg, #0a2463, #1e3a8a);
    color: #fff;
    font-weight: 600;
}

.param-comparison tr:hover {
    background: rgba(76, 201, 240, 0.05);
}

.param-comparison a {
    color: #4cc9f0;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.param-comparison a:hover {
    color: #3a0ca3;
}

.brand-items {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.brand-item {
    flex: 1;
    min-width: 300px;
    background: #f8f9fa;
    padding: 40px;
    margin: 10px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(76, 201, 240, 0.2);
}

.brand-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    border-color: #4cc9f0;
}

.brand-item a {
    text-decoration: none;
    color: #333;
    display: block;
    height: 100%;
}

.brand-item h3 {
    margin-bottom: 15px;
    color: #0a2463;
    font-size: 20px;
    font-weight: 600;
}

.brand-item p {
    color: #666;
}

/* 产品详情页 */
.product-detail {
    padding: 80px 0;
    background: #fff;
}

.product-detail h1 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 36px;
    font-weight: 700;
    color: #0a2463;
    position: relative;
}

.product-detail .core-conclusion {
    text-align: center;
    margin-bottom: 50px;
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 500;
}

.product-image {
    text-align: center;
    margin-bottom: 50px;
}

.product-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.product-params,
.brand-features,
.application-scenarios,
.differentiation {
    margin-bottom: 60px;
}

.product-params h2,
.brand-features h2,
.application-scenarios h2,
.differentiation h2 {
    margin-bottom: 30px;
    font-size: 24px;
    font-weight: 600;
    color: #0a2463;
    position: relative;
    padding-bottom: 10px;
}

.product-params h2::after,
.brand-features h2::after,
.application-scenarios h2::after,
.differentiation h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, #4cc9f0, #3a0ca3);
}

.product-params table {
    width: 100%;
    border-collapse: collapse;
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.product-params th,
.product-params td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.product-params th {
    background: linear-gradient(135deg, #0a2463, #1e3a8a);
    color: #fff;
    font-weight: 600;
    width: 30%;
}

.product-params tr:hover {
    background: rgba(76, 201, 240, 0.05);
}

.brand-features ul,
.application-scenarios ul {
    list-style: none;
    padding-left: 0;
}

.brand-features li,
.application-scenarios li {
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
    line-height: 1.6;
    color: #666;
}

.brand-features li::before,
.application-scenarios li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4cc9f0;
    font-weight: bold;
    font-size: 18px;
}

.differentiation p {
    margin-bottom: 20px;
    line-height: 1.7;
    color: #666;
}

/* 解决方案页面 */
.solutions-page {
    padding: 80px 0;
    background: #fff;
}

.solutions-page h1 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 36px;
    font-weight: 700;
    color: #0a2463;
    position: relative;
}

.solutions-page p {
    text-align: center;
    margin-bottom: 50px;
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.solution-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.solution-item {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    border-left: 4px solid #4cc9f0;
}

.solution-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.solution-item h2 {
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
    color: #0a2463;
}

.solution-item p {
    margin-bottom: 20px;
    text-align: left;
    max-width: 100%;
}

.solution-item ul {
    margin-bottom: 30px;
    padding-left: 20px;
}

.solution-item li {
    margin-bottom: 10px;
    color: #666;
}

/* 案例页面 */
.cases {
    padding: 80px 0;
    background: #fff;
}

.cases h1 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 36px;
    font-weight: 700;
    color: #0a2463;
    position: relative;
}

.cases p {
    text-align: center;
    margin-bottom: 50px;
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.case-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.case-item {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.case-item h2 {
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
    color: #0a2463;
}

.case-item p {
    margin-bottom: 15px;
    text-align: left;
    max-width: 100%;
}

.case-item strong {
    color: #0a2463;
}

.case-item ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.case-item li {
    margin-bottom: 10px;
    color: #666;
}

/* 技术支持页面 */
.support {
    padding: 80px 0;
    background: #fff;
}

.support h1 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 36px;
    font-weight: 700;
    color: #0a2463;
    position: relative;
}

.support p {
    text-align: center;
    margin-bottom: 50px;
    font-size: 18px;
    color: #666;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.faq,
.tech-docs {
    margin-bottom: 60px;
}

.faq h2,
.tech-docs h2 {
    margin-bottom: 30px;
    font-size: 24px;
    font-weight: 600;
    color: #0a2463;
    position: relative;
    padding-bottom: 10px;
}

.faq h2::after,
.tech-docs h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, #4cc9f0, #3a0ca3);
}

.faq-item {
    margin-bottom: 20px;
    background: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.faq-item h3 {
    margin-bottom: 10px;
    font-size: 18px;
    font-weight: 600;
    color: #0a2463;
}

.faq-item p {
    text-align: left;
    max-width: 100%;
    margin-bottom: 0;
}

.doc-list {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.doc-item {
    flex: 1;
    min-width: 300px;
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.doc-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.doc-item h3 {
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: 600;
    color: #0a2463;
}

.doc-item p {
    margin-bottom: 20px;
    text-align: left;
    max-width: 100%;
}

.doc-item .btn {
    margin-right: 10px;
    margin-bottom: 10px;
}

/* 404页面 */
.error-page {
    padding: 100px 0;
    background: #fff;
    text-align: center;
}

.error-page h1 {
    font-size: 100px;
    font-weight: 700;
    color: #4cc9f0;
    margin-bottom: 20px;
}

.error-page h2 {
    font-size: 36px;
    font-weight: 600;
    color: #0a2463;
    margin-bottom: 20px;
}

.error-page p {
    font-size: 18px;
    color: #666;
    margin-bottom: 30px;
}

.error-page ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 40px;
}

.error-page li {
    margin-bottom: 10px;
    color: #666;
}

.error-page .btn {
    margin-right: 10px;
    margin-bottom: 10px;
}

/* 隐私政策和用户协议 */
.policy,
.terms {
    padding: 80px 0;
    background: #fff;
}

.policy h1,
.terms h1 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 36px;
    font-weight: 700;
    color: #0a2463;
    position: relative;
}

.policy .update-date,
.terms .update-date {
    text-align: center;
    margin-bottom: 50px;
    font-size: 14px;
    color: #999;
}

.policy-content,
.terms-content {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.policy-content h2,
.terms-content h2 {
    margin-bottom: 20px;
    margin-top: 40px;
    font-size: 20px;
    font-weight: 600;
    color: #0a2463;
}

.policy-content h2:first-child,
.terms-content h2:first-child {
    margin-top: 0;
}

.policy-content p,
.terms-content p {
    margin-bottom: 20px;
    line-height: 1.7;
    color: #666;
}

.policy-content ul,
.terms-content ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.policy-content li,
.terms-content li {
    margin-bottom: 10px;
    color: #666;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #4cc9f0, #3a0ca3);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(76, 201, 240, 0.4);
    transition: all 0.3s ease;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(76, 201, 240, 0.5);
    background: linear-gradient(135deg, #3a0ca3, #4cc9f0);
}

/* 页面加载进度条 */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #4cc9f0, #3a0ca3, #4cc9f0);
    background-size: 200% 100%;
    animation: loaderGradient 2s linear infinite;
    z-index: 10000;
    transition: width 0.4s ease;
}

@keyframes loaderGradient {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* 导航栏当前页高亮 */
.dropdown {
    position: relative;
}
.dropdown .dropdown-menu {
    display: none;
    position: absolute;
    background: #1a1a2e;
    min-width: 180px;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    z-index: 1000;
    list-style: none;
    padding: 0;
    margin: 0;
}
.dropdown:hover .dropdown-menu {
    display: block;
}
.dropdown-menu li a {
    display: block;
    padding: 10px 18px;
    color: #ccc;
    text-decoration: none;
    font-size: 0.9em;
    white-space: nowrap;
}
.dropdown-menu li a:hover {
    background: #16213e;
    color: #0fbbff;
}

.nav-links .nav-active {
    color: #4cc9f0;
}

.nav-links .nav-active::after {
    width: 100%;
}

/* 禁用链接 */
.disabled-link {
    color: #999 !important;
    cursor: not-allowed;
    pointer-events: none;
    opacity: 0.6;
    text-decoration: none;
}

/* 禁用按钮 */
.disabled-btn {
    display: inline-block;
    background: #d1d5db;
    color: #9ca3af;
    padding: 8px 22px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: not-allowed;
    opacity: 0.75;
    user-select: none;
}

/* 产品详情卡片 */
.product-detail-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: all 0.35s ease;
    border: 1px solid rgba(76, 201, 240, 0.15);
}

.product-detail-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.18);
    border-color: #4cc9f0;
}

/* 页脚增强样式 */
footer .footer-content {
    gap: 50px;
    margin-bottom: 50px;
}

footer .footer-item {
    padding: 10px 0;
}

footer .copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 35px;
    margin-top: 20px;
    color: rgba(255, 255, 255, 0.55);
    font-size: 14px;
    letter-spacing: 0.5px;
}

footer .copyright p {
    margin-bottom: 5px;
}

footer .copyright a {
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    transition: color 0.2s;
}

footer .copyright a:hover {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: underline;
}

.footer-support-info {
    text-align: center;
    color: rgba(255, 255, 255, 0.45);
    font-size: 13px;
    margin-top: 15px;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* 合作伙伴 */
.partners {
    padding: 60px 0;
    background: #f0f2f5;
    position: relative;
}

.partners::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #4cc9f0, #3a0ca3);
}

.partners h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 28px;
    font-weight: 700;
    color: #0a2463;
    position: relative;
}

.partners h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #4cc9f0, #3a0ca3);
}

.partner-logos {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
}

.partner-logo {
    background: #fff;
    padding: 25px 35px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.06);
    font-size: 20px;
    font-weight: 700;
    color: #0a2463;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    border: 1px solid rgba(76, 201, 240, 0.15);
    cursor: default;
    user-select: none;
}

.partner-logo:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
    border-color: #4cc9f0;
    color: #1e3a8a;
}

/* FAQ增强样式 */
.faq-item {
    margin-bottom: 20px;
    background: #f8f9fa;
    padding: 25px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border-left: 4px solid transparent;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-left-color: #4cc9f0;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    background: #fff;
}

.faq-item h3 {
    margin-bottom: 12px;
    font-size: 18px;
    font-weight: 600;
    color: #0a2463;
    cursor: default;
    transition: color 0.3s ease;
}

.faq-item:hover h3 {
    color: #1e3a8a;
}

.faq-item p {
    text-align: left;
    max-width: 100%;
    margin-bottom: 0;
    color: #666;
    line-height: 1.8;
    font-size: 15px;
}

/* 汉堡菜单按钮 */
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
    flex-direction: column;
    gap: 5px;
}

.nav-hamburger span {
    display: block;
    width: 26px;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.nav-hamburger.active span:nth-child(2) {
    opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    background: #4cc9f0;
    color: #fff;
    padding: 8px 16px;
    border-radius: 0 0 6px 6px;
    z-index: 10000;
    font-size: 14px;
    text-decoration: none;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 0;
}

/* Focus visible */
:focus-visible {
    outline: 2px solid #4cc9f0;
    outline-offset: 2px;
}

/* 表格横向滚动 */
table, .config-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
}

.config-table table {
    display: table;
}

/* ---- 1024px 断点 ---- */
@media (max-width: 1024px) {
    .hero-content h1 {
        font-size: 36px;
    }

    .hero-stats {
        gap: 30px;
    }

    .stat-number {
        font-size: 40px;
    }

    .advantage-items, .product-list {
        gap: 20px;
    }

    .advantage-item {
        min-width: 250px;
        padding: 30px;
    }
}

/* ---- 768px 断点 ---- */
@media (max-width: 768px) {
    .nav-hamburger {
        display: flex;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #0a2463;
        padding: 10px 0 20px;
        box-shadow: 0 8px 20px rgba(0,0,0,0.3);
        z-index: 1000;
    }

    .nav-links.nav-open {
        display: flex;
    }

    .nav-links li {
        margin: 0;
        text-align: center;
    }

    .nav-links a {
        display: block;
        padding: 12px 20px;
        font-size: 16px;
    }

    nav .container {
        flex-direction: row;
        justify-content: space-between;
        padding: 15px 20px;
        position: relative;
    }

    .logo a {
        font-size: 22px;
    }

    header {
        padding: 80px 0;
    }

    header h1 {
        font-size: 32px;
    }

    header p {
        font-size: 16px;
    }

    .hero-content h1 {
        font-size: 30px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .hero-stats {
        gap: 24px;
        margin-top: 36px;
    }

    .stat-number {
        font-size: 36px;
    }

    .btn {
        padding: 10px 25px;
        font-size: 16px;
    }

    .advantages,
    .hot-products,
    .solutions {
        padding: 50px 0;
    }

    .advantages h2,
    .hot-products h2,
    .solutions h2 {
        font-size: 26px;
    }

    .advantage-items,
    .product-list,
    .footer-content {
        flex-direction: column;
        align-items: center;
    }

    .advantage-item,
    .product-item,
    .footer-item {
        width: 90%;
        margin: 10px 0;
        padding: 30px;
    }

    .footer-content {
        gap: 30px;
    }

    footer {
        padding: 40px 0 20px;
    }
}

/* ---- 480px 断点 ---- */
@media (max-width: 480px) {
    .container {
        width: 94%;
        padding: 14px 0;
    }

    .logo a {
        font-size: 18px;
    }

    header {
        padding: 60px 0;
    }

    header h1 {
        font-size: 26px;
    }

    header p {
        font-size: 15px;
        margin-bottom: 25px;
    }

    .hero-content h1 {
        font-size: 24px;
    }

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

    .hero-stats {
        gap: 16px;
        margin-top: 28px;
    }

    .stat-number {
        font-size: 28px;
    }

    .stat-label {
        font-size: 12px;
    }

    .btn, .btn-primary, .btn-outline {
        padding: 10px 24px;
        font-size: 14px;
    }

    .btn-outline {
        padding: 8px 22px;
    }

    .advantages h2,
    .hot-products h2,
    .solutions h2 {
        font-size: 22px;
    }

    .advantage-item,
    .product-item,
    .footer-item {
        width: 100%;
        padding: 24px;
    }

    .advantage-item {
        min-width: auto;
    }

    .product-matrix h2 {
        font-size: 22px;
    }

    .matrix-row {
        flex-direction: column;
        gap: 10px;
        padding: 14px 16px;
        text-align: center;
    }

    footer {
        padding: 30px 0 15px;
    }

    .footer-links ul {
        gap: 14px;
    }
}

/* 暗色模式 */
@media (prefers-color-scheme: dark) {
    body {
        background: #0f172a;
        color: #e2e8f0;
    }

    header {
        background: linear-gradient(135deg, rgba(6, 18, 51, 0.95), rgba(15, 35, 70, 0.95));
    }

    .advantages, .hot-products, .solutions {
        background: #1e293b;
    }

    .advantages h2, .hot-products h2, .solutions h2, .partners h2 {
        color: #e2e8f0;
    }

    .advantage-item, .product-item, .product-detail-card {
        background: #1e293b;
        border-color: rgba(76, 201, 240, 0.15);
    }

    .advantage-item h3, .product-item h3 {
        color: #a5f0fc;
    }

    .advantage-item p, .product-item p {
        color: #94a3b8;
    }

    .product-matrix {
        background: #0f172a;
    }

    .product-matrix h2 {
        color: #e2e8f0;
    }

    .section-desc {
        color: #94a3b8;
    }

    .matrix-row {
        background: #1e293b;
    }

    .faq-item {
        background: #1e293b;
        color: #e2e8f0;
    }

    .faq-item h3 {
        color: #a5f0fc;
    }

    .faq-item p {
        color: #94a3b8;
    }

    .partners {
        background: #1e293b;
    }

    .partner-logo {
        background: #0f172a;
        color: #a5f0fc;
    }
}