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

:root {
    --canvas-bg: #fcfcfc;
    --sky-wash: #f0f4fe;
    --midnight-blue: #020520;
    --graphite-gray: #14141e;
    --slate-gray: #374151;
    --fog-gray: #696a72;
    --deep-fog: #95959b;
    --steel-gray: #6b7280;
    --signal-blue: #145aff;
    --action-blue: #0f1f3d;
    --emerald-green: #16ca2e;
    --coral-red: #f26052;
    --sky-blue: #0099ff;
    --amber: #ffa64d;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --section-gap: 80px;
    --container-max: 1200px;
    --radius-pill: 100px;
    --radius-card: 8px;
    --radius-badge: 4px;
    --radius-image: 16px;
    --radius-input: 12px;
    --radius-modal: 32px;
    --radius-button: 12px;
    --radius-large-card: 40px;
    --shadow-card: rgba(0, 0, 0, 0.1) 0px 0px 4px -2px;
    --shadow-elevated: rgba(0, 0, 0, 0.25) 0px 0px 4px -2px;
    --shadow-feature: rgba(0, 0, 0, 0.082) 0px 0.36px 1.81px -1.42px, 
                      rgba(0, 0, 0, 0.07) 0px 1.37px 6.87px -2.83px, 
                      rgba(0, 0, 0, 0.016) 0px 6px 30px -4.25px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 14px;
    line-height: 1.43;
    color: var(--slate-gray);
    background-color: var(--canvas-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(252, 252, 252, 0.8);
    backdrop-filter: blur(2px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 88px;
}

.logo-image {
    height: 88px;
    width: auto;
    display: block;
    vertical-align: middle;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-menu a {
    display: block;
    padding: 8px 16px;
    color: var(--slate-gray);
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    border-radius: var(--radius-pill);
    transition: all 0.2s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: var(--sky-wash);
    color: var(--graphite-gray);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--graphite-gray);
    transition: all 0.3s ease;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 15px 20px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--radius-button);
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(rgb(59, 130, 246) 0%, rgb(20, 90, 255) 100%);
    color: #ffffff;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(20, 90, 255, 0.3);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.8);
    color: var(--action-blue);
    border: 1px solid var(--action-blue);
}

.btn-outline:hover {
    background: var(--sky-wash);
}

.btn-ghost {
    background: var(--canvas-bg);
    color: var(--signal-blue);
    border: 1px solid rgba(20, 90, 255, 0.3);
    border-radius: var(--radius-pill);
    padding: 14px 32px;
}

.btn-ghost:hover {
    background: var(--sky-wash);
}

/* 首页Banner */
.hero {
    position: relative;
    padding: 160px 0 120px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(97.8% 181.6% at 53.7% 50%, rgb(20, 20, 30) 0%, rgba(88, 107, 141, 0.8) 100%);
    opacity: 0.05;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(20, 90, 255, 0.1);
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 500;
    color: var(--signal-blue);
    margin-bottom: 24px;
}

.hero-title {
    font-size: 56px;
    font-weight: 600;
    color: var(--midnight-blue);
    letter-spacing: -1.51px;
    line-height: 1.05;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--fog-gray);
    line-height: 1.5;
    margin-bottom: 40px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* 通用区块样式 */
section {
    padding: var(--section-gap) 0;
}

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

.section-title {
    font-size: 40px;
    font-weight: 600;
    color: var(--midnight-blue);
    letter-spacing: -0.76px;
    line-height: 1.08;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--fog-gray);
    line-height: 1.5;
}

.section-footer {
    text-align: center;
    margin-top: 48px;
}

/* 核心优势 */
.features {
    background: var(--sky-wash);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--canvas-bg);
    padding: 32px 24px;
    border-radius: var(--radius-large-card);
    box-shadow: var(--shadow-feature);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--sky-wash);
    border-radius: 16px;
    margin-bottom: 20px;
    font-size: 24px;
    color: var(--signal-blue);
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin-bottom: 12px;
    letter-spacing: -0.16px;
}

.feature-card p {
    font-size: 14px;
    color: var(--fog-gray);
    line-height: 1.5;
}

/* 关于我们简介 */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    margin-bottom: 20px;
}

.about-lead {
    font-size: 18px;
    color: var(--graphite-gray);
    font-weight: 500;
    margin-bottom: 16px;
}

.about-text p {
    margin-bottom: 16px;
    line-height: 1.6;
}

.about-text .btn {
    margin-top: 24px;
}

/* 产品展示 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    background: var(--canvas-bg);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.product-image {
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--sky-wash);
    font-size: 64px;
    color: var(--signal-blue);
    overflow: hidden;
}

.product-show-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product-content {
    padding: 24px;
}

.product-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin-bottom: 12px;
    letter-spacing: -0.16px;
}

.product-content p {
    font-size: 14px;
    color: var(--fog-gray);
    line-height: 1.5;
    margin-bottom: 16px;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--action-blue);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.product-link:hover {
    gap: 12px;
}

/* 客户案例 */
.cases {
    background: var(--sky-wash);
}

.case-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.case-card {
    background: var(--canvas-bg);
    border-radius: var(--radius-large-card);
    padding: 40px;
    box-shadow: var(--shadow-feature);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.case-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(20, 90, 255, 0.1);
    color: var(--signal-blue);
    border-radius: var(--radius-badge);
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 16px;
}

.case-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin-bottom: 20px;
}

.case-detail p {
    font-size: 14px;
    color: var(--fog-gray);
    line-height: 1.6;
    margin-bottom: 12px;
}

.case-detail strong {
    color: var(--graphite-gray);
}

/* 新闻动态 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--canvas-bg);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.news-date {
    flex-shrink: 0;
    text-align: center;
    padding: 12px 16px;
    background: var(--sky-wash);
    border-radius: var(--radius-input);
}

.news-date .day {
    display: block;
    font-size: 24px;
    font-weight: 600;
    color: var(--signal-blue);
    line-height: 1;
}

.news-date .month {
    display: block;
    font-size: 12px;
    color: var(--fog-gray);
    margin-top: 4px;
}

.news-content h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-content h3 a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.news-content h3 a:hover {
    color: var(--signal-blue);
}

.news-content p {
    font-size: 14px;
    color: var(--fog-gray);
    line-height: 1.5;
    margin-bottom: 12px;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--action-blue);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.news-link:hover {
    gap: 12px;
}

/* 联系我们简介 */
.contact-brief {
    background: var(--sky-wash);
}

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

.contact-text {
    text-align: center;
}

.contact-text h2 {
    margin-bottom: 20px;
}

.contact-text > p {
    font-size: 16px;
    color: var(--fog-gray);
    margin-bottom: 40px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    text-align: left;
}

.contact-item i {
    font-size: 24px;
    color: var(--signal-blue);
    margin-top: 4px;
}

.contact-item h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 14px;
    color: var(--fog-gray);
}

/* 页脚 */
.footer {
    background: var(--midnight-blue);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-section h3,
.footer-section h4 {
    color: #ffffff;
    margin-bottom: 20px;
}

.footer-section h3 {
    font-size: 20px;
    font-weight: 600;
}

.footer-section h4 {
    font-size: 14px;
    font-weight: 600;
}

.footer-section p {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

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

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

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-section ul li a:hover {
    color: #ffffff;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: #ffffff;
    text-decoration: none;
    transition: all 0.2s ease;
}

.social-links a:hover {
    background: rgba(255, 255, 255, 0.2);
}

.contact-list li {
    display: flex;
    align-items: center;
    gap: 12px;
}

.contact-list i {
    color: var(--signal-blue);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 12px;
}

.footer-bottom p {
    margin-bottom: 8px;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
}

.footer-bottom a:hover {
    color: #ffffff;
}

/* 内页通用样式 */
.page-header {
    padding: 120px 0 60px;
    background: var(--sky-wash);
    text-align: center;
}

.page-header h1 {
    font-size: 40px;
    font-weight: 600;
    color: var(--midnight-blue);
    letter-spacing: -0.76px;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 16px;
    color: var(--fog-gray);
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    font-size: 14px;
}

.breadcrumb a {
    color: var(--fog-gray);
    text-decoration: none;
}

.breadcrumb a:hover {
    color: var(--signal-blue);
}

.breadcrumb span {
    color: var(--deep-fog);
}

/* 关于我们页面 */
.about-section {
    padding: var(--section-gap) 0;
}

.about-intro {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.about-intro-text h2 {
    font-size: 32px;
    font-weight: 600;
    color: var(--midnight-blue);
    margin-bottom: 20px;
}

.about-intro-text p {
    font-size: 16px;
    color: var(--fog-gray);
    line-height: 1.6;
    margin-bottom: 16px;
}

.about-image {
    background: var(--sky-wash);
    border-radius: var(--radius-large-card);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    color: var(--signal-blue);
    overflow: hidden;
}

.about-show-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.value-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--sky-wash);
    border-radius: var(--radius-large-card);
}

.value-card i {
    font-size: 48px;
    color: var(--signal-blue);
    margin-bottom: 20px;
}

.value-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin-bottom: 12px;
}

.value-card p {
    font-size: 14px;
    color: var(--fog-gray);
    line-height: 1.5;
}

/* 产品分类页面 */
.products-section {
    padding: var(--section-gap) 0;
}

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

.product-category:last-child {
    margin-bottom: 0;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 32px;
}

.category-header i {
    font-size: 32px;
    color: var(--signal-blue);
}

.category-header h2 {
    font-size: 32px;
    font-weight: 600;
    color: var(--midnight-blue);
}

.category-products {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.category-product-card {
    background: var(--canvas-bg);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.category-product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.category-product-image {
    height: 200px;
    background: var(--sky-wash);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--signal-blue);
    overflow: hidden;
}

.category-product-show-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.category-product-show-image-dual {
    width: 50%;
    height: 100%;
    object-fit: contain;
}

.category-product-content {
    padding: 24px;
}

.category-product-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin-bottom: 12px;
}

.category-product-content p {
    font-size: 14px;
    color: var(--fog-gray);
    line-height: 1.5;
    margin-bottom: 16px;
}

.category-product-content .btn {
    width: 100%;
}

/* 产品详情页面 */
.product-detail {
    padding: var(--section-gap) 0;
}

.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.product-detail-image {
    background: var(--sky-wash);
    border-radius: var(--radius-large-card);
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
    color: var(--signal-blue);
}

.product-detail-info h1 {
    font-size: 40px;
    font-weight: 600;
    color: var(--midnight-blue);
    margin-bottom: 20px;
}

.product-detail-info .price {
    font-size: 24px;
    font-weight: 600;
    color: var(--signal-blue);
    margin-bottom: 20px;
}

.product-detail-info .description {
    font-size: 16px;
    color: var(--fog-gray);
    line-height: 1.6;
    margin-bottom: 32px;
}

.product-features {
    margin-bottom: 32px;
}

.product-features h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin-bottom: 16px;
}

.product-features ul {
    list-style: none;
}

.product-features ul li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--slate-gray);
}

.product-features ul li i {
    color: var(--emerald-green);
}

.product-actions {
    display: flex;
    gap: 16px;
}

.product-specs {
    background: var(--sky-wash);
    border-radius: var(--radius-large-card);
    padding: 40px;
}

.product-specs h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--midnight-blue);
    margin-bottom: 24px;
}

.specs-table {
    width: 100%;
}

.specs-table tr {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.specs-table tr:last-child {
    border-bottom: none;
}

.specs-table td {
    padding: 16px 0;
    font-size: 14px;
}

.specs-table td:first-child {
    color: var(--fog-gray);
    width: 150px;
}

.specs-table td:last-child {
    color: var(--graphite-gray);
    font-weight: 500;
}

/* 新闻列表页面 */
.news-section {
    padding: var(--section-gap) 0;
}

.news-list {
    display: grid;
    gap: 24px;
}

.news-list-item {
    display: flex;
    gap: 32px;
    padding: 32px;
    background: var(--canvas-bg);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
}

.news-list-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.news-list-image {
    flex-shrink: 0;
    width: 200px;
    height: 150px;
    background: var(--sky-wash);
    border-radius: var(--radius-image);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--signal-blue);
}

.news-list-content {
    flex: 1;
}

.news-list-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 12px;
    color: var(--deep-fog);
}

.news-list-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-list-content h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-list-content h2 a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.news-list-content h2 a:hover {
    color: var(--signal-blue);
}

.news-list-content p {
    font-size: 14px;
    color: var(--fog-gray);
    line-height: 1.6;
    margin-bottom: 16px;
}

.news-list-content .btn {
    padding: 10px 20px;
    font-size: 14px;
}

/* 新闻详情页面 */
.news-detail {
    padding: var(--section-gap) 0;
}

.news-detail-content {
    max-width: 800px;
    margin: 0 auto;
}

.news-detail-header {
    margin-bottom: 40px;
}

.news-detail-header h1 {
    font-size: 40px;
    font-weight: 600;
    color: var(--midnight-blue);
    margin-bottom: 20px;
    line-height: 1.3;
}

.news-detail-meta {
    display: flex;
    align-items: center;
    gap: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 14px;
    color: var(--fog-gray);
}

.news-detail-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
}

.news-detail-body {
    font-size: 16px;
    color: var(--slate-gray);
    line-height: 1.8;
}

.news-detail-body p {
    margin-bottom: 20px;
}

.news-detail-body h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin: 40px 0 20px;
}

.news-detail-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin: 32px 0 16px;
}

.news-detail-body ul,
.news-detail-body ol {
    margin: 20px 0;
    padding-left: 24px;
}

.news-detail-body li {
    margin-bottom: 12px;
}

.news-detail-body blockquote {
    margin: 24px 0;
    padding: 20px 24px;
    background: var(--sky-wash);
    border-left: 4px solid var(--signal-blue);
    border-radius: 0 var(--radius-card) var(--radius-card) 0;
    font-style: italic;
    color: var(--fog-gray);
}

.news-detail-footer {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.news-tags {
    display: flex;
    gap: 8px;
}

.news-tags span {
    padding: 6px 12px;
    background: var(--sky-wash);
    border-radius: var(--radius-badge);
    font-size: 12px;
    color: var(--signal-blue);
}

.news-share {
    display: flex;
    gap: 12px;
}

.news-share a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--sky-wash);
    border-radius: 50%;
    color: var(--signal-blue);
    text-decoration: none;
    transition: all 0.2s ease;
}

.news-share a:hover {
    background: var(--signal-blue);
    color: #ffffff;
}

/* 联系我们页面 */
.contact-section {
    padding: var(--section-gap) 0;
}

.contact-content-full {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info-full {
    padding: 40px;
    background: var(--sky-wash);
    border-radius: var(--radius-large-card);
}

.contact-info-full h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--midnight-blue);
    margin-bottom: 24px;
}

.contact-info-list {
    margin-bottom: 40px;
}

.contact-info-item {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-info-item i {
    font-size: 24px;
    color: var(--signal-blue);
    margin-top: 4px;
}

.contact-info-item h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin-bottom: 4px;
}

.contact-info-item p {
    font-size: 14px;
    color: var(--fog-gray);
    line-height: 1.5;
}

.contact-map {
    height: 200px;
    background: var(--canvas-bg);
    border-radius: var(--radius-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--signal-blue);
}

.contact-form-full {
    padding: 40px;
    background: var(--canvas-bg);
    border-radius: var(--radius-large-card);
    box-shadow: var(--shadow-feature);
}

.contact-form-full h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--midnight-blue);
    margin-bottom: 24px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--graphite-gray);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #cfcfcf;
    border-radius: var(--radius-input);
    font-size: 14px;
    font-family: var(--font-primary);
    color: var(--graphite-gray);
    background: var(--canvas-bg);
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--sky-blue);
    box-shadow: rgba(0, 153, 255, 1) 0px 0px 0px 3px;
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--deep-fog);
}

.form-submit {
    margin-top: 24px;
}

.form-submit .btn {
    width: 100%;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .features-grid,
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content,
    .about-intro {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .category-products {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .product-detail-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content-full {
        grid-template-columns: 1fr;
    }
    
    .case-cards {
        grid-template-columns: 1fr;
    }
    
    .specs-table {
        font-size: 12px;
    }
    .specs-table td:first-child {
        width: 80px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-gap: 60px;
    }
    
    .logo-image {
        height: 40px;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--canvas-bg);
        flex-direction: column;
        padding: 24px;
        box-shadow: var(--shadow-card);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-cta {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero-title {
        font-size: 40px;
        letter-spacing: -0.76px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .features-grid,
    .products-grid,
    .news-grid,
    .category-products {
        grid-template-columns: 1fr;
    }
    
    .contact-info,
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .news-list-item {
        flex-direction: column;
    }
    
    .news-list-image {
        width: 100%;
        height: 200px;
    }
    
    .product-detail-image {
        height: 300px;
        font-size: 80px;
    }
    
    .product-detail-info h1,
    .news-detail-header h1 {
        font-size: 28px;
    }
    
    .news-detail-meta {
        flex-wrap: wrap;
        gap: 12px;
    }
    
    .news-detail-footer {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
}

/* ========== FAQ 常见问题 ========== */
.faq-section {
    padding: 80px 0;
    background: #f8fafc;
}

.faq-section .section-title {
    text-align: center;
    margin-bottom: 12px;
}

.faq-section .section-subtitle {
    text-align: center;
    color: var(--fog-gray);
    margin-bottom: 48px;
    font-size: 15px;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 24px 28px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.faq-item:hover {
    border-color: var(--signal-blue);
    box-shadow: 0 2px 12px rgba(20, 90, 255, 0.06);
}

.faq-question {
    font-size: 16px;
    font-weight: 600;
    color: var(--graphite-gray);
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.faq-question::before {
    content: 'Q';
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    background: var(--signal-blue);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    border-radius: 5px;
}

.faq-answer {
    font-size: 15px;
    color: var(--fog-gray);
    line-height: 1.7;
    padding-left: 36px;
}

@media (max-width: 768px) {
    .faq-section {
        padding: 60px 0;
    }
    .faq-item {
        padding: 18px 16px;
    }
    .faq-question {
        font-size: 15px;
    }
    .faq-answer {
        font-size: 14px;
        padding-left: 36px;
    }
}