/* ============================================
   青蓝科技官网 - 微盟授权服务商
   风格高度还原微盟官网，融入青蓝品牌特色
   ============================================ */

/* 字体定义 */
@font-face {
    font-family: 'QingLanFont';
    src: url('font.woff2') format('woff2'), url('font.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

:root {
    --primary: #0088ff;
    --primary-dark: #0055cc;
    --primary-light: #e6f4ff;
    --secondary: #00b4d8;
    --accent: #ff6b35;
    --dark: #1a1a2e;
    --gray: #666;
    --gray-light: #999;
    --gray-lighter: #f5f6fa;
    --white: #ffffff;
    --black: #000000;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.12);
    --radius: 16px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

*, *::before, *::after { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
}

/* 文字内容使用青蓝字体 */
p, span, h1, h2, h3, h4, h5, h6, li, td, th, label, a, div, input, textarea, select, button {
    font-family: 'QingLanFont', 'Microsoft YaHei', 'PingFang SC', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif !important;
}

html, body {
    height: 100%;
    overflow-x: hidden;
    overscroll-behavior: none;
    -webkit-overflow-scrolling: touch;
}

html { scroll-behavior: smooth; }

body {
    font-size: 16px;
    line-height: 1.7;
    color: var(--dark);
    background: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    overscroll-behavior: none;
    position: relative;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }

ul { list-style: none; }

img { max-width: 100%; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ============================================
   按钮
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    box-shadow: 0 4px 20px rgba(0, 136, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 136, 255, 0.4);
}

.btn-white {
    background: var(--white);
    color: var(--primary);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-outline-white {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-outline-white:hover {
    background: var(--white);
    color: var(--primary);
}

/* ============================================
   头部导航
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-img {
    height: 44px;
    width: auto;
    border-radius: 10px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 14px;
    font-weight: 400;
    color: #008ce6;
    line-height: 1.2;
}

.logo-sub {
    font-size: 11px;
    color: var(--primary);
    font-weight: 500;
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 10px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--dark);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: var(--primary-light);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background: var(--gray-lighter);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 18px;
    cursor: pointer;
}

/* ============================================
   Banner轮播
   ============================================ */
.banner {
    position: relative;
    margin-top: 72px;
    height: 560px;
    overflow: hidden;
}

.banner-slider {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y pan-x;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.banner-slide.active {
    opacity: 1;
}

.banner-content {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    color: var(--dark);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-smoothing: antialiased;
}

.banner-content h1 {
    font-size: 40px;
    font-weight: 400;
    margin-bottom: 0;
    line-height: 1.4;
    color: var(--dark);
    letter-spacing: 0;
    -webkit-font-smoothing: antialiased;
}

.banner-content p {
    font-size: 16px;
    margin-bottom: 28px;
    color: #333;
    line-height: 1.8;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
}

.banner-visual {
    position: absolute;
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
    width: 400px;
    height: 400px;
}

.visual-circle {
    position: absolute;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.circle-1 { width: 400px; height: 400px; animation: pulse 4s infinite; }
.circle-2 { width: 300px; height: 300px; top: 50px; left: 50px; animation: pulse 4s infinite 0.5s; }
.circle-3 { width: 200px; height: 200px; top: 100px; left: 100px; animation: pulse 4s infinite 1s; }

@keyframes pulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.05); }
}

.visual-card {
    position: absolute;
    padding: 20px 28px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: var(--radius);
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 24px;
    box-shadow: var(--shadow-lg);
    font-weight: 600;
}

.visual-card i { font-size: 24px; color: var(--primary); }
.card-1 { top: 20px; left: 0; animation: float 3s infinite ease-in-out; }
.card-2 { bottom: 80px; left: 50px; animation: float 3s infinite 0.5s ease-in-out; }
.card-3 { top: 100px; right: 0; animation: float 3s infinite 1s ease-in-out; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.banner-overlay { display:none; }
.banner .btn-white {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    background: var(--white);
    color: var(--dark);
    box-shadow: 0 2px 12px rgba(0,0,0,0.15);
    -webkit-font-smoothing: antialiased;
}

.banner-controls {
    position: absolute;
    bottom: 10px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
}

.banner-dots {
    display: flex;
    gap: 8px;
    align-items: center;
}

.banner-dot {
    width: 32px;
    height: 4px;
    background: rgba(255, 255, 255, 0.4);
    border-radius: 2px;
    cursor: pointer;
    transition: background 0.3s;
    flex-shrink: 0;
    overflow: hidden;
    position: relative;
}

.banner-dot:hover {
    background: rgba(255, 255, 255, 0.7);
}

.banner-dot.active {
    background: transparent;
}

.banner-dot.active::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background: #0071ef;
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 6s linear;
}

.banner-dot.filled::after {
    transform: scaleX(1) !important;
    transition: none !important;
}

/* ============================================
   通用区块
   ============================================ */
.section {
    padding: 100px 0;
}

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

.section-label {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    font-weight: 400;
    color: var(--dark);
    margin-bottom: 12px;
    letter-spacing: 0;
}

.section-desc {
    font-size: 16px;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 400;
}

.bg-gray { background: var(--gray-lighter); }
.text-center { text-align: center; }
.mt-5 { margin-top: 40px; }

/* ============================================
   产品网格
   ============================================ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    position: relative;
    padding: 36px 28px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

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

.product-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), #d4ecff);
    border-radius: 16px;
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 20px;
}

.product-title {
    font-size: 20px;
    font-weight: 400;
    margin-bottom: 12px;
    color: var(--dark);
}

.product-title .tag {
    display: inline-block;
    padding: 3px 10px;
    background: var(--accent);
    color: var(--white);
    font-size: 12px;
    font-weight: 500;
    border-radius: 10px;
    margin-left: 8px;
    vertical-align: middle;
}

.product-card > p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.product-arrow {
    position: absolute;
    bottom: 28px;
    right: 28px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    transition: var(--transition);
}

.product-card:hover .product-arrow {
    background: var(--primary);
    color: var(--white);
}

/* ============================================
   服务能力
   ============================================ */
.service-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    padding: 40px 32px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    color: var(--white);
    font-size: 28px;
    margin-bottom: 24px;
    box-shadow: 0 8px 25px rgba(0, 136, 255, 0.3);
}

.service-card h3 {
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 20px;
    color: var(--dark);
}

.service-card ul {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.service-card ul li {
    position: relative;
    padding-left: 16px;
    font-size: 15px;
    color: var(--gray);
}

.service-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* ============================================
   案例展示
   ============================================ */
.industry-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 50px;
}

.industry-tags span {
    padding: 10px 24px;
    background: var(--white);
    border-radius: 50px;
    font-size: 15px;
    font-weight: 500;
    color: var(--dark);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
    transition: var(--transition);
}

.industry-tags span:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.industry-tags span i {
    margin-right: 8px;
    color: var(--primary);
}

.industry-tags span:hover i {
    color: var(--white);
}

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

.case-card {
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.case-featured {
    grid-column: span 2;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
}

.case-featured .case-brand,
.case-featured p {
    color: var(--white);
}

.case-brand {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.case-featured .case-stats {
    display: flex;
    gap: 40px;
    margin-top: 24px;
}

.case-featured .stat {
    display: flex;
    flex-direction: column;
}

.case-featured .stat .num {
    font-size: 36px;
    font-weight: 700;
    color: #ffde57;
    line-height: 1.2;
}

.case-featured .stat .label {
    font-size: 13px;
    opacity: 0.8;
}

.case-card > p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.case-stats-mini {
    display: flex;
    gap: 20px;
    font-size: 14px;
    color: var(--gray);
}

.case-stats-mini b {
    color: var(--accent);
    font-weight: 700;
}

/* ============================================
   WOS系统
   ============================================ */
.section-wos {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: var(--white);
}

.wos-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.wos-content {
    flex: 1;
}

.wos-content .section-label {
    background: rgba(255,255,255,0.2);
    color: var(--white);
}

.wos-content h2 {
    font-size: 36px;
    font-weight: 400;
    margin-bottom: 16px;
    color: var(--dark);
}

.wos-desc {
    font-size: 16px;
    margin-bottom: 32px;
    color: var(--dark);
    font-weight: 400;
}

.wos-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.wos-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 32px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--radius);
    font-size: 18px;
    font-weight: 400;
    color: var(--dark);
}

.wos-item i {
    font-size: 24px;
    color: var(--primary);
}

/* ============================================
   技术实力
   ============================================ */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.tech-item {
    text-align: center;
    padding: 40px 24px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.tech-num {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 12px;
}

.tech-label {
    font-size: 15px;
    color: var(--gray);
}

/* ============================================
   合作伙伴
   ============================================ */
.partner-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
}

.partner-item {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 20px 36px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    transition: var(--transition);
}

.partner-item:hover {
    transform: translateY(-3px);
    color: var(--primary);
}

.partner-item i {
    font-size: 24px;
    color: var(--primary);
}

/* ============================================
   最新动态
   ============================================ */
.news-tabs {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
}

.news-tab {
    padding: 10px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--gray);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: var(--transition);
}

.news-tab:hover,
.news-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

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

.news-item {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

.news-date {
    flex-shrink: 0;
    font-size: 14px;
    color: var(--gray-light);
}

.news-title {
    font-size: 16px;
    font-weight: 500;
    color: var(--dark);
    transition: var(--transition);
}

.news-title:hover {
    color: var(--primary);
}

/* ============================================
   CTA区块
   ============================================ */
.section-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    text-align: center;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 400;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 16px;
    opacity: 0.9;
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* ============================================
   页脚
   ============================================ */
.footer {
    background: var(--dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 22px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-logo img {
    height: 40px;
    width: auto;
    border-radius: 6px;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-cert {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 13px;
}

.footer-cert i {
    color: var(--secondary);
}

.footer-qrcode {
    margin-top: 16px;
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.qrcode-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.qrcode-title {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.qrcode-img {
    width: 100px;
    height: 100px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 24px;
}

.footer-col ul li {
    margin-bottom: 14px;
}

.footer-col ul li a {
    font-size: 14px;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--white);
    padding-left: 4px;
}

.contact-list li {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 14px;
    margin-bottom: 14px !important;
}

.contact-list li i {
    width: 20px;
    color: var(--secondary);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   产品详情页
   ============================================ */
.page-header {
    margin-top: 72px;
    padding: 80px 0 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    text-align: center;
}

.page-header h1 {
    font-size: 36px;
    font-weight: 400;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 16px;
    opacity: 0.9;
}

.product-detail-section {
    padding: 80px 0;
    border-bottom: 1px solid #eee;
}

.product-detail-section:nth-child(even) {
    background: var(--gray-lighter);
}

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.product-detail.reverse {
    direction: rtl;
}

.product-detail.reverse > * {
    direction: ltr;
}

.product-detail-icon {
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 30px;
    color: var(--white);
    font-size: 48px;
    box-shadow: 0 20px 50px rgba(0, 136, 255, 0.3);
}

.product-detail-content h2 {
    font-size: 36px;
    font-weight: 400;
    margin-bottom: 8px;
}

.product-detail-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--accent);
    color: var(--white);
    font-size: 14px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 20px;
}

.product-detail-content > p {
    font-size: 16px;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 30px;
}

.feature-list {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
}

.feature-item {
    padding: 10px 20px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
    border-radius: 25px;
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1200px) {
    .product-grid { grid-template-columns: repeat(2, 1fr); }
    .service-grid { grid-template-columns: repeat(2, 1fr); }
    .tech-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 992px) {
    .nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 8px;
        box-shadow: var(--shadow);
        transform: translateY(-150%);
        transition: var(--transition);
    }
    
    .nav.active { transform: translateY(0); }
    .nav-toggle { display: flex !important; }
    
    .banner-content h1 { font-size: 40px; }
    .banner-visual { display: none; }
    
    .section-title { font-size: 32px; }
    
    .cases-showcase { grid-template-columns: 1fr; }
    .case-featured { grid-column: span 1; }
    
    .wos-wrapper { flex-direction: column; text-align: center; }
    
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 40px; }
    
    .product-detail { grid-template-columns: 1fr; text-align: center; }
    .product-detail.reverse { direction: ltr; }
    .feature-list { justify-content: center; }
}

@media (max-width: 768px) {
    .section { padding: 60px 0; }
    
    .banner { height: 450px; }
    .banner-content h1 { font-size: 32px; }
    .banner-content p { font-size: 16px; }
    
    .product-grid,
    .service-grid,
    .tech-grid { grid-template-columns: 1fr; }
    
    .wos-features { grid-template-columns: 1fr; }
    
    .cta-buttons { flex-direction: column; align-items: center; }
    
    .footer-grid { grid-template-columns: 1fr; }
    
    .news-tabs { gap: 20px; }
    .news-item { flex-direction: column; align-items: flex-start; gap: 8px; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    
    .logo-text { display: none; }
    
    .btn { padding: 12px 24px; font-size: 14px; }
    
    .section-title { font-size: 28px; }
    
    .wos-content h2 { font-size: 28px; }
    
    .cta-content h2 { font-size: 28px; }
}

/* 二维码悬停放大效果 */
.qrcode-item {
    position: relative;
    cursor: pointer;
}

.qrcode-item:hover .qrcode-img {
    transform: scale(1.8);
    z-index: 100;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.qrcode-img {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

/* 企微二维码大尺寸展示 */
.wecom-qrcode {
    margin-top: 12px;
    text-align: center;
}

.wecom-img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.25s ease;
}

.wecom-img:hover {
    transform: scale(1.8);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.wecom-tip {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}
.wecom-tip i {
    color: #07C160;
}

/* 企微二维码弹窗 */
.wecom-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.wecom-modal.show {
    display: flex;
}

.wecom-modal-content {
    background: #fff;
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    max-width: 360px;
    position: relative;
}

.wecom-modal-close {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 28px;
    color: #999;
    cursor: pointer;
    line-height: 1;
}

.wecom-modal-close:hover {
    color: #333;
}

.wecom-modal h3 {
    color: #333;
    font-size: 20px;
    margin-bottom: 8px;
}

.wecom-modal p {
    color: #666;
    font-size: 14px;
    margin-bottom: 20px;
}

.wecom-modal img {
    width: 200px;
    height: 200px;
    border-radius: 8px;
    border: 1px solid #eee;
}

.wecom-modal-note {
    margin-top: 12px;
    font-size: 13px;
    color: #07C160;
    font-weight: 500;
}