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

:root {
    --primary: #0D9488;
    --primary-dark: #0F766E;
    --primary-light: #2DD4BF;
    --secondary: #10B981;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    --bg-primary: #FFFFFF;
    --bg-secondary: #f5f7fa;
    --bg-tertiary: #F0FDFA;
    --border: #E5E7EB;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-lg: 16px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', 'Microsoft YaHei', sans-serif;
    color: var(--text-primary);
    background: var(--bg-secondary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* 头部导航 */
.header {
    background: linear-gradient(180deg, #0D9488 0%, #2DD4BF 100%);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
}

.logo img {
    height: 36px;
}

.nav-menu {
    display: none;
    gap: 32px;
}

.nav-menu a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-menu a:hover {
    color: #fff;
}

.contact-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    text-decoration: none;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    transition: background 0.2s;
}

.contact-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* 首屏 */
.hero {
    background: linear-gradient(180deg, #2DD4BF 0%, #5EEAD4 40%, #CCFBF1 70%, #f5f7fa 100%);
    padding: 60px 0 40px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-text {
    color: #fff;
    margin-bottom: 32px;
}

/* 首屏下方文字颜色渐变 */
.hero-text.transition-text {
    color: var(--text-primary);
}

.tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.9);
    color: #0D9488;
    border-radius: 20px;
    font-size: 13px;
    margin-bottom: 16px;
    backdrop-filter: blur(10px);
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(13, 148, 136, 0.2);
}

.hero-text h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
    color: #fff;
    text-shadow: 0 2px 12px rgba(13, 148, 136, 0.4), 0 4px 20px rgba(13, 148, 136, 0.2);
}

.hero-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 24px;
    line-height: 1.8;
    text-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
}

.hero-stats {
    display: flex;
    gap: 24px;
    margin-bottom: 28px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.stat-item {
    flex: 1;
    text-align: center;
}

.stat-item i {
    display: block;
    font-size: 28px;
    color: #fff;
    margin-bottom: 8px;
    text-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
}

.stat-item .num {
    display: block;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 4px;
    color: #fff;
    text-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
}

.hero-actions {
    display: flex;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(13, 148, 136, 0.3);
    font-weight: 600;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
}

.btn-primary i {
    margin-right: 6px;
}

.btn-outline {
    background: rgba(255, 255, 255, 1);
    color: var(--primary);
    border: 2px solid rgba(255, 255, 255, 1);
    backdrop-filter: blur(10px);
    font-weight: 600;
    text-shadow: 0 2px 8px rgba(13, 148, 136, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 1);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    box-shadow: 0 4px 16px rgba(13, 148, 136, 0.3);
    font-weight: 600;
}

.btn-block:hover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
}

.hero-image {
    display: none;
    justify-self: end;
    padding: 20px;
}

.hero-image img {
    width: 85%;
    max-width: 400px;
}

/* 通用区块 */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.section-header p {
    font-size: 15px;
    color: var(--text-secondary);
}

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

/* 核心优势 */
.advantages {
    background: #f5f7fa;
    padding: 0 0 60px 0 !important;
}

.advantage-grid {
    display: grid;
    gap: 16px;
}

.advantage-card {
    padding: 24px;
    background: linear-gradient(42.7deg, #FFFFFF 53.17%, #F0F4F7 104.01%);
    box-shadow: 0px 20px 30px 0px rgba(183, 189, 200, 0.2);
    border-radius: var(--radius);
    transition: all 0.2s;
    border: 1px solid #FFFFFF;
}

.advantage-card:hover {

    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.15);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.card-icon i {
    font-size: 22px;
    color: #fff;
}

.advantage-card h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.advantage-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 产品系列 */
.products {
    background: #fff;
    padding: 60px 0;
}

.product-list {
    display: grid;
    gap: 20px;
}

.product-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

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

.product-card.featured {
    border: 2px solid var(--primary);
}

.product-image {
    position: relative;
    height: 300px;
    background: linear-gradient(135deg, #F0FDFA 0%, #CCFBF1 100%);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image img {
    width: auto;
    height: auto;
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
    transition: transform 0.3s;
}

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

.product-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 6px 14px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.product-tag.hot {
    background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
}

.product-content {
    padding: 20px;
}

.product-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.product-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.product-features {
    list-style: none;
    margin-bottom: 20px;
}

.product-features li {
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.product-features i {
    color: var(--secondary);
    font-size: 12px;
}

/* 检测技术 */
.technology {
    background: var(--bg-secondary);
    padding: 60px 0;
}

.tech-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0px;
    align-items: stretch;
    padding: 20px;
}

.tech-wrapper02 {
    background: #fff;
}

.tech-list {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    align-content: stretch;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: linear-gradient(42.7deg, #FFFFFF 53.17%, #F0F4F7 104.01%);
    border-radius: var(--radius);
    transition: box-shadow 0.3s, transform 0.3s;
    text-align: center;
    border: 1px solid #fff;
}

.tech-item:hover {
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.15);
    transform: translateX(5px);
}

.tech-icon {
    flex-shrink: 0;
}

.tech-icon i {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin: 12px 0;
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.15);
}

.tech-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.tech-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 技术参数表格 */
.features-list {
    flex: 1;
}

.tech-image {
    display: none;
}

.feature-group {
    overflow: hidden;
    height: auto;
    margin-bottom: 30px;
}

.feature-group h3 {
    background: var(--bg-tertiary);
    color: var(--primary);
    font-size: 16px;
    font-weight: 600;
    padding: 14px 20px;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-group h3 i {
    font-size: 18px;
    opacity: 0.9;
}

.feature-table {
    width: 100%;
    border-collapse: collapse;

}

.feature-table tbody tr {
    transition: all 0.2s;
    background: #fff;
}

.feature-table tbody tr:hover td:last-child {
    color: var(--primary);
}

.feature-table td {
    padding: 15px 16px;
    font-size: 14px;
    line-height: 1.8;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.feature-table tbody tr:last-child td {
    border-bottom: 1px solid var(--border);
}

.feature-table td:first-child {
    width: 110px;
    font-weight: 600;
    color: var(--text-primary);
    background: #fff;
    white-space: nowrap;
}

.feature-table td:last-child {
    color: var(--text-secondary);
}

.tech-image {
    display: none;
    flex: 0 0 42%;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, #F0FDFA 0%, #CCFBF1 100%);
    border-radius: var(--radius-lg);
}

.tech-image img {
    width: 100%;
    height: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: var(--radius);
}


/* ========================================
   悬浮按钮
   ======================================== */

.float-buttons {
    position: fixed;
    right: 24px;
    bottom: 100px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 999;
}

.float-btn {
    position: relative;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    color: var(--text-primary);
    font-size: 20px;
    transition: all 0.3s;
    cursor: pointer;
    text-decoration: none;
    border: none;
}

.float-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.float-phone {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
}

.float-phone:hover {
    box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
}

.float-wechat {
    background: linear-gradient(135deg, #10B981 0%, #34D399 100%);
    color: #fff;
}

.float-wechat:hover {
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.float-top {
    background: linear-gradient(135deg, #6B7280 0%, #9CA3AF 100%);
    color: #fff;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

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

.float-top:hover {
    box-shadow: 0 6px 20px rgba(107, 114, 128, 0.4);
}

.float-text {
    position: absolute;
    right: 62px;
    white-space: nowrap;
    padding: 8px 16px;
    background: var(--text-primary);
    color: #fff;
    font-size: 13px;
    border-radius: var(--radius);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    pointer-events: none;
}

.float-text::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: var(--text-primary);
}

.float-btn:hover .float-text {
    opacity: 1;
    visibility: visible;
}

.float-popup {
    position: absolute;
    right: 62px;
    bottom: -20px;
    padding: 16px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    text-align: center;
    width: 160px;
}

.float-popup::after {
    content: '';
    position: absolute;
    right: -8px;
    top: 50%;
    transform: translateY(-50%);
    border: 8px solid transparent;
    border-left-color: #fff;
}

.float-btn:hover .float-popup {
    opacity: 1;
    visibility: visible;
}

.float-popup img {
    width: 128px;
    height: 128px;
    border-radius: var(--radius);
    margin-bottom: 8px;
}

.float-popup p {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    margin: 0;
}

/* 响应式 - 移动端表格 */
@media (max-width: 767px) {
    .feature-table td {
        padding: 10px 12px;
        font-size: 12px;
    }

    .feature-table td:first-child {
        width: 90px;
    }
}

/* 适用科室 */
.departments {
    background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
    padding: 60px 0;
}

.departments .container {
    text-align: center;
}

.departments .btn-primary {
    margin-top: 32px;
    display: inline-block;
    padding: 12px 32px;
    font-size: 15px;
}

.dept-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.dept-card {
    background: #fff;
    padding: 28px 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}


.dept-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 24px rgba(13, 148, 136, 0.15);
}

.dept-card:nth-child(1) {
    background: linear-gradient(135deg, rgba(13, 148, 136, 0.05) 0%, rgba(13, 148, 136, 0.1) 100%);
}

.dept-card:nth-child(4) {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(16, 185, 129, 0.1) 100%);
}

.dept-card:nth-child(2) {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05) 0%, rgba(245, 158, 11, 0.1) 100%);
}

.dept-card:nth-child(3) {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.05) 0%, rgba(236, 72, 153, 0.1) 100%);
}

.dept-card:nth-child(5) {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, rgba(139, 92, 246, 0.1) 100%);
}

.dept-card:nth-child(1)::before {
    background: linear-gradient(90deg, #0D9488 0%, #2DD4BF 100%);
}

.dept-card:nth-child(4)::before {
    background: linear-gradient(90deg, #10B981 0%, #34D399 100%);
}

.dept-card:nth-child(2)::before {
    background: linear-gradient(90deg, #F59E0B 0%, #FBBF24 100%);
}

.dept-card:nth-child(3)::before {
    background: linear-gradient(90deg, #EC4899 0%, #F472B6 100%);
}

.dept-card:nth-child(5)::before {
    background: linear-gradient(90deg, #8B5CF6 0%, #A78BFA 100%);
}

.dept-card i {
    font-size: 40px;
    margin-bottom: 16px;
    display: inline-block;
    width: 72px;
    height: 72px;
    line-height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0D9488 0%, #2DD4BF 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.3);
}

.dept-card:nth-child(1) i {
    background: linear-gradient(135deg, #0D9488 0%, #2DD4BF 100%);
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.3);
}

.dept-card:nth-child(4) i {
    background: linear-gradient(135deg, #10B981 0%, #34D399 100%);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.dept-card:nth-child(2) i {
    background: linear-gradient(135deg, #F59E0B 0%, #FBBF24 100%);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.dept-card:nth-child(3) i {
    background: linear-gradient(135deg, #EC4899 0%, #F472B6 100%);
    box-shadow: 0 4px 12px rgba(236, 72, 153, 0.3);
}

.dept-card:nth-child(5) i {
    background: linear-gradient(135deg, #8B5CF6 0%, #A78BFA 100%);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.dept-card span {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.7;
    display: block;
}

/* 关于我们 */
.about {
    background: #fff;
    padding: 60px 0;
}

.about-wrapper {
    display: grid;
    gap: 32px;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    display: block;
    position: relative;
    z-index: 1;
}

.about-image::before {
    content: "";
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: linear-gradient(135deg, #F0FDFA 0%, #CCFBF1 100%);
    border-radius: var(--radius-lg);
}

.about-text {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-numbers {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin: 24px 0;
}

.number-item {
    text-align: center;
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: var(--radius);
}

.number-item .number {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 4px;
}

.number-item .text {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 联系我们 */
.contact {
    background: linear-gradient(135deg, #134E4A 0%, #0D9488 50%, #2DD4BF 100%);
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.contact::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.contact::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
    position: relative;
    z-index: 1;
    align-items: stretch;
}

.contact-info {
    color: #fff;
}

.contact-info h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.contact-info>p {
    font-size: 14px;
    opacity: 0.95;
    margin-bottom: 24px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

.info-list {
    display: grid;
    gap: 12px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 14px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    transition: all 0.3s;
}

.info-item:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: translateX(5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.info-item i {
    font-size: 18px;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0.15) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    flex-shrink: 0;
}

.info-label {
    font-size: 12px;
    opacity: 0.8;
    margin-bottom: 3px;
}

.info-item a,
.info-item span {
    font-size: 14px;
    color: #fff;
    text-decoration: none;
    font-weight: 500;
}

.contact-actions {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 20px;
    align-items: stretch;
}

.contact-form-wrap {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.form-left h3 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 16px;
    font-weight: 600;
}

.form-group {
    margin-bottom: 12px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius);
    font-size: 13px;
    color: var(--text-primary);
    transition: all 0.3s;
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    background: #fff;
    border-color: #fff;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.form-group textarea {
    min-height: 80px;
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #9CA3AF;
}

.submit-btn {
    width: 100%;
    padding: 10px 20px;
    background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
    color: var(--primary);
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
    background: #fff;
}

.submit-btn i {
    margin-right: 6px;
}

.action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 24px 16px;
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    height: 100%;
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.25);
}

.action-btn i {
    font-size: 32px;
}

.action-btn img {
    width: 150px;
    height: 150px;
    object-fit: cover;
}

.action-btn span {
    font-size: 14px;
    font-weight: 500;
    text-align: center;
}

.action-btn.online {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.action-btn.online:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* 底部 */
.footer {
    background: #1F2937;
    padding: 24px 0;
}

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

.footer-text p {
    font-size: 13px;
    color: #9CA3AF;
    margin: 4px 0;
}

/* 移动端底部栏 */
.mobile-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.08);
    display: none;
    grid-template-columns: repeat(2, 1fr);
    z-index: 1000;
    border-top: 1px solid var(--border);
}

.bar-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 16px;
    text-decoration: none;
    font-size: 14px;
    color: var(--text-secondary);
    transition: all 0.2s;
    font-weight: 500;
}

.bar-item:active {
    background: var(--bg-secondary);
}

.bar-item i {
    font-size: 18px;
}

.bar-item.primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
}

.bar-item.primary:active {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

/* 响应式 - 移动端 */
@media (max-width: 767px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .contact-info h2 {
        font-size: 22px;
    }

    .info-item {
        padding: 12px;
    }

    .contact-form-wrap {
        padding: 16px;
    }

    .contact-actions {
        grid-template-columns: 1fr;
    }

    .action-btn img {
        width: 100px;
        height: 100px;
    }

    .mobile-bar {
        display: grid;
    }

    .float-buttons {
        display: none;
    }
}

/* 响应式 - 平板 */
@media (min-width: 768px) {
    .container {
        padding: 0 24px;
    }

    .header-content {
        padding: 16px 0;
    }

    .logo img {
        height: 42px;
    }

    .nav-menu {
        display: flex;
    }

    .contact-btn span {
        display: inline;
    }

    .hero {
        padding: 60px 0 70px;
    }

    .hero-content {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
        align-items: center;
    }

    .hero-text h1 {
        font-size: 42px;
    }

    .hero-stats {
        gap: 32px;
    }

    .stat-item .num {
        font-size: 26px;
    }

    .hero-image {
        display: block;
        justify-self: end;
    }

    .section-header h2 {
        font-size: 32px;
    }

    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .product-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .tech-wrapper {
        flex-direction: row;
        align-items: stretch;
        gap: 24px;
    }

    .tech-image {
        display: flex;
        flex: 0 0 32%;
        align-items: center;
        justify-content: center;
        padding: 16px;
        background: linear-gradient(135deg, #F0FDFA 0%, #CCFBF1 100%);
        border-radius: var(--radius-lg);
        max-height: 460px;
    }

    .tech-image02 {
        background: none;

    }

    .tech-image img {
        width: 100%;
        height: auto;
        max-height: 100%;
        object-fit: contain;
    }

    .tech-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .dept-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .about-wrapper {
        grid-template-columns: 1fr 1.5fr;
        align-items: center;
    }

    .contact-wrapper {
        grid-template-columns: 1fr 1.5fr;
    }
}

/* 响应式 - 桌面 */
@media (min-width: 1024px) {
    .hero {
        padding: 60px 0 90px;
    }

    .hero-text h1 {
        font-size: 48px;
    }

    .hero-desc {
        font-size: 16px;
    }

    .hero-stats {
        gap: 40px;
    }

    .stat-item .num {
        font-size: 28px;
    }

    .advantages,
    .products,
    .technology,
    .departments,
    .about,
    .contact {
        padding: 80px 0;
    }

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

    .product-list {
        grid-template-columns: repeat(3, 1fr);
    }

    .dept-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 16px;
    }

    .mobile-bar {
        display: none;
    }

    body {
        padding-bottom: 0;
    }
}

/* 移动端底部栏间距 */
@media (max-width: 1023px) {
    body {
        padding-bottom: 60px;
    }
}

/* 移动端适配 */
@media (max-width: 767px) {
    .tech-list {
        grid-template-columns: 1fr;
    }
}

/* 图片占位 */


/* 滚动条 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94A3B8;
}