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

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

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

/* 导航栏样式 */
.navbar {
    background: linear-gradient(135deg, #c2410c 0%, #ea580c 100%);
    box-shadow: 0 2px 20px rgba(194, 65, 12, 0.15);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
}
.nav-logo a {
    white-space: nowrap;
}

.nav-logo a {
    color: white;
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.nav-logo a:hover {
    color: #fbbf24;
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
    white-space: nowrap;
}

.nav-item {
    position: relative;
}

.badge {
    background: #fbbf24;
    color: #1e3a8a;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 12px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fbbf24;
}

.nav-link .badge {
    position: absolute;
    top: -8px;
    right: -18px;
}

.badge {
    background: #fbbf24;
    color: #c2410c;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    list-style: none;
    padding: 12px 0;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown li {
    margin: 0;
}

.nav-dropdown a {
    color: #333;
    text-decoration: none;
    padding: 12px 20px;
    display: block;
    transition: all 0.3s ease;
    font-size: 14px;
    border-radius: 0;
}

.nav-dropdown a:hover {
    background: linear-gradient(135deg, #c2410c 0%, #ea580c 100%);
    color: white;
    transform: translateX(5px);
}

/* 为导航栏留出空间 */
body {
    padding-top: 70px;
}



/* 按钮样式 */
.btn-primary, .btn-secondary, .consult-btn {
    display: inline-block;
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(234, 88, 12, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #c2410c 0%, #ea580c 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(234, 88, 12, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, #c2410c 0%, #ea580c 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(194, 65, 12, 0.3);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(194, 65, 12, 0.4);
}

.consult-btn {
    background: linear-gradient(135deg, #c2410c 0%, #ea580c 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(194, 65, 12, 0.3);
}

.consult-btn:hover {
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(194, 65, 12, 0.4);
}

/* 现代悬浮咨询窗 */
.float-consultation {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-item {
    background: white;
    color: #333;
    padding: 16px 20px;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
    min-width: 140px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.float-item:hover {
    transform: translateX(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.float-item.primary {
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
    color: white;
}

.float-item.secondary {
    background: linear-gradient(135deg, #c2410c 0%, #ea580c 100%);
    color: white;
}

.float-item.accent {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
}

.float-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.float-icon svg {
    width: 20px;
    height: 20px;
}

/* 弹窗样式 */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.popup-content {
    background: white;
    border-radius: 20px;
    padding: 40px;
    max-width: 450px;
    width: 90%;
    text-align: center;
    position: relative;
    animation: popupSlideIn 0.4s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

@keyframes popupSlideIn {
    from {
        opacity: 0;
        transform: translateY(-60px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.popup-header h3 {
    color: #333;
    font-size: 22px;
    font-weight: 600;
}

.popup-close {
    background: none;
    border: none;
    cursor: pointer;
    color: #999;
    padding: 8px;
    border-radius: 50%;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.popup-close:hover {
    background: #f5f5f5;
    color: #333;
}

.popup-close svg {
    width: 20px;
    height: 20px;
}

.qr-code {
    margin: 30px 0;
}

/* 名片弹窗样式 */
.business-card {
  padding: 20px 0 0 0;
}
.card-main {
  display: flex;
  align-items: center;
  gap: 24px;
}
.card-info {
  flex: 1;
}
.company-logo img {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  margin-bottom: 10px;
}
.info-list {
  margin-top: 8px;
}
.info-item {
  margin-bottom: 8px;
  font-size: 15px;
  color: #333;
}
.label {
  color: #888;
}
.value {
  font-weight: bold;
  color: #ea580c;
  margin-left: 4px;
}
.copy-btn {
  margin-left: 8px;
  font-size: 13px;
  padding: 2px 10px;
  border-radius: 6px;
  border: none;
  background: #3b82f6;
  color: #fff;
  cursor: pointer;
}
.card-qr {
  text-align: center;
}
.card-qr img {
  width: 100px;
  height: 100px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.qr-tip {
  font-size: 13px;
  color: #666;
  margin-top: 6px;
}
.card-actions {
  margin-top: 18px;
  text-align: center;
}
.call-btn {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 10px 28px;
  font-size: 16px;
  cursor: pointer;
}

.card-actions {
    display: flex;
    gap: 12px;
    flex-direction: column;
}

.copy-btn, .call-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.copy-btn {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
}

.copy-btn:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.call-btn {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.call-btn:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.copy-btn svg, .call-btn svg {
    width: 18px;
    height: 18px;
}

/* 弹窗触发按钮 */
.popup-trigger {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    padding: 16px 24px;
    border-radius: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 8px 32px rgba(220, 38, 38, 0.3);
    transition: all 0.3s ease;
    z-index: 999;
    font-weight: 500;
}

.popup-trigger:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(220, 38, 38, 0.4);
}

.popup-trigger svg {
    width: 20px;
    height: 20px;
}

/* 首页区块 */
/* banner区域高度和布局调整 */
/* banner整体渐变背景，左右统一风格，去除分栏背景色 */
.hero-section {
    width: 100%;
    min-width: 1200px;
    max-width: 1920px;
    height: 600px;
    margin: 0 auto;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(90deg, #f8fafc 0%, #f5f7fa 100%);
    overflow: hidden;
    border-radius: 28px;
    border: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 6px 32px rgba(0,0,0,0.07);
}
.hero-content {
    width: 100%;
    max-width: 1600px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 36px;
}
.hero-text {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    text-align: right;
    padding-right: 40px;
    height: 100%;
    background: none;
    border-top-left-radius: 28px;
    border-bottom-left-radius: 28px;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}
.hero-text h1 {
    font-size: 3.2rem;
    font-weight: bold;
    margin-bottom: 24px;
    color: #222;
    position: relative;
    z-index: 2;
}
.hero-text p {
    font-size: 1.3rem;
    line-height: 2.2rem;
    margin-bottom: 32px;
    color: #444;
}
/* 让.banner右侧图片铺满右半边，高度自适应 */
/* 图片边框只包裹图片本身，图片自适应居中 */
.hero-image {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    cursor: pointer;
    background: none;
    border-top-right-radius: 28px;
    border-bottom-right-radius: 28px;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}
.hero-image img {
    max-width: 90%;
    max-height: 90%;
    width: auto;
    height: auto;
    border-radius: 16px;
    background: transparent;
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    border: 1.5px solid #e5e7eb;
    transition: box-shadow 0.2s, filter 0.2s;
    display: block;
    margin: 0 auto;
}
.hero-image:hover img {
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    filter: brightness(1.04);
}
@media (max-width: 1200px) {
    .hero-section {
        min-width: 0;
        height: 420px;
    }
    .hero-content {
        gap: 16px;
    }
    .hero-text {
        padding-right: 12px;
        border-radius: 18px 0 0 18px;
        background: none;
    }
    .hero-image {
        border-radius: 0 18px 18px 0;
        background: none;
    }
    .hero-image img {
        width: 100%;
        height: 100%;
        max-width: none;
        max-height: none;
    }
    .hero-text h1 {
        font-size: 2.2rem;
    }
    .hero-text p {
        font-size: 1rem;
    }
}

/* 区块通用样式 */
.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 60px;
    color: #333;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
    border-radius: 2px;
}

/* 产品特点区块 */
.features-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-item {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature-icon svg {
    width: 40px;
    height: 40px;
}

.feature-item h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #333;
}

.feature-item p {
    color: #666;
    line-height: 1.6;
    font-size: 16px;
}

/* 技术参数区块 */
.specs-section {
    padding: 100px 0;
    background: white;
}

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

.specs-text h3 {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 40px;
    color: #333;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 18px;
    margin-top: 18px;
}

.spec-item {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    padding: 22px 36px;
    text-align: left;
    cursor: pointer;
    transition: box-shadow 0.2s, transform 0.2s;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.spec-item:hover {
    box-shadow: 0 6px 24px rgba(0,0,0,0.12);
    transform: translateY(-4px) scale(1.03);
}

.spec-label {
    display: block;
    font-size: 15px;
    color: #888;
    margin-bottom: 6px;
    margin-left: 8px;
}

.spec-value {
    font-size: 20px;
    font-weight: 600;
    color: #222;
    margin-left: 8px;
}

.spec-tooltip {
    position: fixed;
    z-index: 9999;
    background: #222;
    color: #fff;
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 14px;
    pointer-events: none;
    max-width: 260px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.18);
    transition: opacity 0.15s;
    opacity: 0.95;
}
@media (max-width: 600px) {
    .specs-grid {
        grid-template-columns: 1fr;
    }
}

.specs-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

/* 检测模式区块 */
.modes-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.modes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.mode-item {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
}

.mode-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
}

.mode-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.mode-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.mode-icon svg {
    width: 40px;
    height: 40px;
}

.mode-item h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #333;
}

.mode-item p {
    color: #666;
    line-height: 1.6;
    font-size: 16px;
}

/* 应用场景区块 */
.applications-section {
    padding: 100px 0;
    background: white;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.application-item {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.application-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.application-image img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.application-content {
    padding: 30px;
}

.application-content h3 {
    text-align: center;
    margin-bottom: 10px;
}

.application-content p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 24px;
}

/* 产品优势区块 */
.advantages-section {
    padding: 100px 0;
    background: #f8f9fa;
}

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

.advantages-text {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.advantage-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ea580c 0%, #c2410c 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.advantage-icon svg {
    width: 30px;
    height: 30px;
}

.advantage-content h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.advantage-content p {
    color: #666;
    line-height: 1.6;
}

.advantages-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

/* 相关动态区块 */
.news-section {
    padding: 100px 0;
    background: white;
}

.news-grid {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: none; /* Firefox */
    scrollbar-color: #bbb #f5f5f5;
    background: #f5f7fa;
    border-radius: 18px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}
.news-grid::-webkit-scrollbar {
    display: none;
}
.news-item {
    flex: 0 0 320px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 18px rgba(0,0,0,0.13);
    padding: 28px 24px 22px 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: box-shadow 0.2s, transform 0.2s;
}
.news-item:hover {
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    transform: translateY(-6px) scale(1.03);
}

.news-image img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.news-content {
    padding: 30px;
}

.news-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #1976d2;
}

.news-content p {
    font-size: 15px;
    color: #444;
    margin-bottom: 12px;
}

.news-content .read-more {
    color: #1976d2;
    font-size: 14px;
    text-decoration: underline;
    align-self: flex-start;
}

.read-more {
    color: #ea580c;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #c2410c;
}

/* 页脚 */
.footer {
    background: #1e293b;
    color: white;
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer-section h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
    color: #ecf0f1;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
    margin-bottom: 12px;
}

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

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

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #ecf0f1;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 30px;
}

.copyright {
    text-align: center;
    color: #bdc3c7;
    font-size: 14px;
    line-height: 1.6;
}

.copyright a {
    color: #bdc3c7;
    text-decoration: none;
}

.copyright a:hover {
    color: #ecf0f1;
}

/* 响应式设计 */
@media (max-width: 768px) {
    /* 移动端导航栏 */
    .nav-container {
        padding: 0 15px;
        justify-content: center;
    }

    .nav-menu {
        display: none;
    }

    .nav-logo a {
        font-size: 16px;
        text-align: center;
    }

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

    .hero-text h1 {
        font-size: 36px;
    }

    .hero-text h2 {
        font-size: 20px;
    }

    .float-consultation {
        display: none;
    }

    .specs-content,
    .advantages-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .features-grid,
    .modes-grid,
    .applications-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 28px;
    }

    .container {
        padding: 0 15px;
    }

    .popup-content {
        margin: 20px;
        padding: 30px;
    }

    .popup-trigger {
        bottom: 20px;
        right: 20px;
        padding: 12px 20px;
        font-size: 14px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 28px;
    }

    .hero-text h2 {
        font-size: 18px;
    }

    .hero-text p {
        font-size: 16px;
    }

    .btn-primary, .btn-secondary, .consult-btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    .feature-item,
    .mode-item,
    .application-item,
    .news-item {
        padding: 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* 名片样式 */
.business-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-radius: 16px;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.card-header {
    background: linear-gradient(135deg, #7c3aed 0%, #5b21b6 100%);
    color: white;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.company-logo {
    width: 50px;
    height: 50px;
    border-radius: 8px;
    overflow: hidden;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.company-logo img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.company-info h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.company-info p {
    font-size: 14px;
    opacity: 0.9;
    margin: 0;
}

.card-content {
    padding: 20px;
}

.contact-info {
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #7c3aed 0%, #5b21b6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 20px;
    height: 20px;
}

.contact-details {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 14px;
    color: #666;
    margin-bottom: 2px;
}

.contact-value {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    font-family: 'Courier New', monospace;
}

.qr-code-section {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 12px;
    margin-bottom: 20px;
}

.qr-code {
    margin-bottom: 10px;
}

.qr-code img {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.qr-code-section p {
    color: #666;
    font-size: 14px;
    margin: 0;
}

.card-actions {
    display: flex;
    gap: 12px;
    flex-direction: column;
}

.copy-btn, .call-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.copy-btn {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
}

.copy-btn:hover {
    background: linear-gradient(135deg, #1d4ed8 0%, #1e40af 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.call-btn {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.call-btn:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.copy-btn svg, .call-btn svg {
    width: 18px;
    height: 18px;
} 

/* 二维码按钮样式 */
.float-item.qr-item {
    background: linear-gradient(135deg, #c2410c 0%, #ea580c 100%);
    padding: 15px;
    border-radius: 12px;
    text-align: center;
    min-width: 120px;
    margin-bottom: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.float-qr-code {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}
.float-qr-code img {
    width: 80px;
    height: 80px;
    border-radius: 8px;
    border: 2px solid #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.float-qr-code .qr-tip {
    font-size: 15px;
    color: #fff;
    font-weight: bold;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
    margin-top: 4px;
    letter-spacing: 2px;
    text-align: center;
} 

/* 产品特点区块四个一行 */
.features-section .features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 32px;
}
@media (max-width: 1200px) {
    .features-section .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}
@media (max-width: 700px) {
    .features-section .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
} 

/* 技术参数 specs-grid 新样式 */
.specs-section .specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px 32px;
    background: #fff;
    border-radius: 18px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
    padding: 32px 28px;
    margin: 24px 0;
}
.specs-section .spec-item {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid #f0f2f5;
}
.specs-section .spec-item:last-child,
.specs-section .spec-item:nth-last-child(2) {
    border-bottom: none;
}
.specs-section .spec-label {
    font-weight: 600;
    color: #1e293b;
    font-size: 1.08rem;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}
.specs-section .spec-value {
    color: #ea580c;
    font-size: 1.15rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}
@media (max-width: 900px) {
    .specs-section .specs-grid {
        grid-template-columns: 1fr;
        padding: 18px 8px;
    }
} 

.application-content .consult-btn {
    display: block;
    margin: 18px auto 0 auto;
} 

.nav-logo-img {
    height: 32px;
    vertical-align: middle;
    margin-right: 8px;
}
.modes-principle-img-inner {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.modes-principle-img {
    flex: 1 1 320px;
    min-width: 260px;
    max-width: 420px;
}
.modes-principle-text {
    flex: 2 1 340px;
    min-width: 260px;
    font-size: 18px;
    line-height: 1.9;
}
.news-grid {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding-bottom: 8px;
}
.news-item {
    flex: 0 0 320px;
}
#spec-tooltip {
    display: none;
} 

@media (max-width: 768px) {
  .hero-section .hero-image {
    display: none;
  }
  .hero-section .hero-content {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero-section .hero-text {
    width: 100%;
  }
}