/* ===== 重置样式与基础变量 ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 主色调 - 蓝色科技风 */
    --oc-primary-50: #F0F9FF;
    --oc-primary-100: #E0F2FE;
    --oc-primary-200: #BAE6FD;
    --oc-primary-300: #7DD3FC;
    --oc-primary-400: #38BDF8;
    --oc-primary-500: #0EA5E9;
    --oc-primary-600: #0284C7;
    --oc-primary-700: #0369A1;
    --oc-primary-800: #075985;
    --oc-primary-900: #0C4A6E;

    /* 绿色辅助色 */
    --oc-green-500: #10B981;
    --oc-green-600: #059669;
    
    /* 中性色 */
    --oc-gray-50: #F8FAFC;
    --oc-gray-100: #F1F5F9;
    --oc-gray-200: #E2E8F0;
    --oc-gray-300: #CBD5E1;
    --oc-gray-400: #94A3B8;
    --oc-gray-500: #64748B;
    --oc-gray-600: #475569;
    --oc-gray-700: #334155;
    --oc-gray-800: #1E293B;
    --oc-gray-900: #0F172A;

    /* 功能色 */
    --oc-success: #22C55E;
    --oc-warning: #F59E0B;
    --oc-error: #EF4444;

    /* 渐变 */
    --oc-gradient-primary: linear-gradient(135deg, #0EA5E9 0%, #0369A1 100%);
    --oc-gradient-hero: linear-gradient(135deg, #0F172A 0%, #1E293B 50%, #0C4A6E 100%);
    
    /* 阴影 */
    --oc-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --oc-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --oc-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --oc-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* 过渡 */
    --oc-transition-fast: 150ms ease;
    --oc-transition-normal: 300ms ease;
    --oc-transition-slow: 500ms ease;

    /* 圆角 */
    --oc-radius-sm: 6px;
    --oc-radius-md: 10px;
    --oc-radius-lg: 16px;
    --oc-radius-xl: 20px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--oc-gray-800);
    line-height: 1.6;
    background-color: white;
    overflow-x: hidden;
}

.oc-container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.oc-section {
    padding: 80px 0;
}

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

.oc-section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--oc-gray-900);
    margin-bottom: 12px;
}

.oc-section-header p {
    font-size: 1.125rem;
    color: var(--oc-gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 导航栏 ===== */
.oc-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--oc-gray-100);
    transition: all var(--oc-transition-normal);
}

.oc-nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.oc-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--oc-gray-900);
    text-decoration: none;
    transition: color var(--oc-transition-fast);
}

.oc-logo:hover {
    color: var(--oc-primary-600);
}

.oc-nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.oc-nav-menu a {
    font-weight: 500;
    color: var(--oc-gray-600);
    text-decoration: none;
    position: relative;
    padding: 8px 0;
    transition: color var(--oc-transition-fast);
}

.oc-nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--oc-primary-500);
    transition: width var(--oc-transition-normal);
}

.oc-nav-menu a:hover,
.oc-nav-menu a.oc-active {
    color: var(--oc-primary-600);
}

.oc-nav-menu a:hover::after,
.oc-nav-menu a.oc-active::after {
    width: 100%;
}

.oc-mobile-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.oc-mobile-btn span {
    width: 24px;
    height: 2px;
    background: var(--oc-gray-800);
    border-radius: 2px;
    transition: all var(--oc-transition-normal);
}

/* ===== 首页 Hero 区域 ===== */
.oc-hero {
    position: relative;
    min-height: 680px;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 120px 0 80px;
}

.oc-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 0;
}

.oc-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(30, 41, 59, 0.85) 50%, rgba(12, 74, 110, 0.9) 100%);
    z-index: 1;
}

.oc-hero-content {
    position: relative;
    z-index: 2;
}

.oc-hero-text {
    max-width: 700px;
}

.oc-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(14, 165, 233, 0.2);
    border: 1px solid rgba(14, 165, 233, 0.3);
    border-radius: 50px;
    color: var(--oc-primary-300);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.oc-hero-text h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: white;
    line-height: 1.2;
    margin-bottom: 24px;
}

.oc-gradient-text {
    background: var(--oc-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.oc-hero-text p {
    font-size: 1.125rem;
    color: var(--oc-gray-300);
    margin-bottom: 32px;
    line-height: 1.8;
}

.oc-hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.oc-hero-stats {
    display: flex;
    gap: 48px;
}

.oc-stat-item {
    display: flex;
    flex-direction: column;
}

.oc-stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--oc-primary-400);
}

.oc-stat-label {
    font-size: 0.875rem;
    color: var(--oc-gray-400);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.oc-hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    line-height: 0;
    z-index: 2;
}

.oc-hero-wave svg {
    width: 100%;
    height: auto;
}

/* ===== 按钮样式 ===== */
.oc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--oc-radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--oc-transition-fast);
    text-decoration: none;
    line-height: 1.5;
}

.oc-btn-primary {
    background: var(--oc-primary-500);
    color: white;
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.oc-btn-primary:hover {
    background: var(--oc-primary-600);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
}

.oc-btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.oc-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.oc-btn-outline {
    background: transparent;
    color: var(--oc-primary-600);
    border: 2px solid var(--oc-primary-500);
}

.oc-btn-outline:hover {
    background: var(--oc-primary-500);
    color: white;
}

.oc-btn-large {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  min-width: 180px;
  height: 54px;
  padding: 0 34px;

  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.3px;

  color: #ffffff;
  text-decoration: none;

  background: linear-gradient(135deg, #0ea5e9 0%, #0369a1 100%);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.25);

  box-shadow: 0 12px 28px rgba(3, 105, 161, 0.28);
  cursor: pointer;

  -webkit-transition: all 0.3s ease;
  transition: all 0.3s ease;

  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.oc-btn-large:hover {
  color: #ffffff;
  text-decoration: none;
  background: linear-gradient(135deg, #0284c7 0%, #075985 100%);

  -webkit-transform: translateY(-3px);
  transform: translateY(-3px);

  box-shadow: 0 18px 40px rgba(3, 105, 161, 0.36);
}

.oc-btn-large:active {
  -webkit-transform: translateY(-1px);
  transform: translateY(-1px);

  box-shadow: 0 8px 20px rgba(3, 105, 161, 0.28);
}

.oc-btn-large:focus {
  outline: none;
}

.oc-btn-large:focus-visible {
  outline: 3px solid rgba(14, 165, 233, 0.35);
  outline-offset: 4px;
}

/* 大屏 PC */
@media screen and (min-width: 1440px) {
  .oc-btn-large {
    min-width: 200px;
    height: 58px;
    padding: 0 40px;
    font-size: 17px;
  }
}

/* 普通 PC / 小屏笔记本 */
@media screen and (max-width: 1200px) {
  .oc-btn-large {
    min-width: 170px;
    height: 52px;
    padding: 0 32px;
    font-size: 15px;
  }
}

/* 平板 */
@media screen and (max-width: 991px) {
  .oc-btn-large {
    min-width: 160px;
    height: 50px;
    padding: 0 28px;
    font-size: 15px;
  }
}

/* 手机端 */
@media screen and (max-width: 767px) {
  .oc-btn-large {
    width: 100%;
    max-width: 320px;
    height: 48px;
    padding: 0 24px;
    font-size: 15px;
  }
}

/* 小屏手机 */
@media screen and (max-width: 480px) {
  .oc-btn-large {
    max-width: 100%;
    height: 46px;
    padding: 0 22px;
    font-size: 14px;
    border-radius: 14px;
  }
}

.oc-btn-full {
    width: 100%;
}

/* ===== 产品分类卡片 ===== */
.oc-categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.oc-category-card {
    background: white;
    padding: 32px;
    border-radius: var(--oc-radius-xl);
    box-shadow: var(--oc-shadow-md);
    transition: all var(--oc-transition-normal);
    border: 1px solid var(--oc-gray-100);
}

.oc-category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--oc-shadow-xl);
    border-color: var(--oc-primary-200);
}

.oc-category-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 20px;
    background: var(--oc-primary-50);
    border-radius: var(--oc-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--oc-primary-600);
}

.oc-category-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--oc-gray-900);
}

.oc-category-card p {
    color: var(--oc-gray-600);
    margin-bottom: 16px;
    font-size: 0.9375rem;
}

.oc-category-list {
    list-style: none;
    margin-bottom: 20px;
}

.oc-category-list li {
    color: var(--oc-gray-600);
    font-size: 0.875rem;
    padding: 4px 0;
    padding-left: 20px;
    position: relative;
}

.oc-category-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--oc-primary-500);
}

.oc-category-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--oc-primary-600);
    text-decoration: none;
    transition: gap var(--oc-transition-fast);
}

.oc-category-link:hover {
    gap: 12px;
}

/* ===== 应用场景卡片 ===== */
.oc-scenarios-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.oc-scenario-card {
    position: relative;
    min-height: 280px;
    border-radius: var(--oc-radius-xl);
    overflow: hidden;
    background-size: cover;
    background-position: center;
    transition: transform var(--oc-transition-normal);
}

.oc-scenario-card:hover {
    transform: scale(1.02);
}

.oc-scenario-content {
    position: relative;
    z-index: 2;
    padding: 40px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.oc-scenario-content h3 {
    font-size: 1.5rem;
    color: white;
    margin-bottom: 12px;
}

.oc-scenario-content p {
    color: var(--oc-gray-300);
    margin-bottom: 16px;
}

.oc-scenario-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.oc-scenario-tags span {
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    font-size: 0.75rem;
    color: white;
    backdrop-filter: blur(10px);
}

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

.oc-about-text h2 {
    margin-bottom: 12px;
    font-size: 2rem;
}

.oc-about-text h3 {
    font-size: 1.125rem;
    color: var(--oc-primary-600);
    margin-bottom: 24px;
    font-weight: 600;
}

.oc-about-text p {
    margin-bottom: 16px;
    font-size: 1rem;
    color: var(--oc-gray-600);
    line-height: 1.8;
}

.oc-advantages {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.oc-advantage-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--oc-gray-700);
    font-weight: 500;
    font-size: 0.9375rem;
}

.oc-advantage-item svg {
    color: var(--oc-primary-500);
    flex-shrink: 0;
}

.oc-about-image img {
    width: 100%;
    height: auto;
    border-radius: var(--oc-radius-xl);
    box-shadow: var(--oc-shadow-xl);
}

/* ===== CTA 区域 ===== */
.oc-cta-section {
    position: relative;
    padding: 80px 0;
    overflow: hidden;
}

.oc-cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.oc-cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.92) 0%, rgba(12, 74, 110, 0.92) 100%);
    z-index: 1;
}

.oc-cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.oc-cta-content h2 {
    font-size: 2.25rem;
    color: white;
    margin-bottom: 16px;
}

.oc-cta-content p {
    color: var(--oc-gray-300);
    font-size: 1.125rem;
    margin-bottom: 32px;
}

.oc-cta-contact {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 32px;
}

.oc-cta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--oc-gray-300);
}

.oc-cta-item svg {
    color: var(--oc-primary-400);
}

/* ===== 页脚 ===== */
.oc-footer {
    background: var(--oc-gray-900);
    padding: 80px 0 32px;
}

.oc-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 48px;
}

.oc-footer-brand .oc-logo {
    color: white;
    margin-bottom: 16px;
}

.oc-footer-brand p {
    color: var(--oc-gray-400);
    max-width: 280px;
    font-size: 0.9375rem;
}

.oc-footer-links h4,
.oc-footer-contact h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.125rem;
}

.oc-footer-links ul,
.oc-footer-contact ul {
    list-style: none;
}

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

.oc-footer-links a {
    color: var(--oc-gray-400);
    text-decoration: none;
    transition: color var(--oc-transition-fast);
    font-size: 0.9375rem;
}

.oc-footer-links a:hover {
    color: var(--oc-primary-400);
}

.oc-footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--oc-gray-400);
    margin-bottom: 16px;
    font-size: 0.9375rem;
}

.oc-footer-contact svg {
    color: var(--oc-primary-500);
    flex-shrink: 0;
}

.oc-footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--oc-gray-800);
    text-align: center;
    color: var(--oc-gray-500);
    font-size: 0.875rem;
}

/* ===== 页面头图 ===== */
.oc-page-header {
    position: relative;
    min-height: 320px;
    display: flex;
    align-items: center;
    text-align: center;
    overflow: hidden;
    padding: 120px 0 60px;
}

.oc-page-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.oc-page-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(30, 41, 59, 0.85) 100%);
    z-index: 1;
}

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

.oc-page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 12px;
}

.oc-page-header p {
    color: var(--oc-gray-300);
    font-size: 1.125rem;
}

/* ===== 产品筛选 ===== */
.oc-product-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.oc-filter-btn {
    padding: 10px 24px;
    border: 2px solid var(--oc-gray-200);
    background: white;
    border-radius: 50px;
    font-weight: 500;
    color: var(--oc-gray-600);
    cursor: pointer;
    transition: all var(--oc-transition-fast);
    font-family: inherit;
    font-size: 1rem;
}

.oc-filter-btn:hover,
.oc-filter-btn.oc-active {
    border-color: var(--oc-primary-500);
    background: var(--oc-primary-50);
    color: var(--oc-primary-700);
}

/* ===== 产品列表 ===== */
.oc-category-title {
    margin-bottom: 32px;
}

.oc-category-title h2 {
    font-size: 1.75rem;
    color: var(--oc-gray-800);
    margin-bottom: 8px;
}

.oc-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.oc-product-card {
    background: white;
    border-radius: var(--oc-radius-xl);
    overflow: hidden;
    box-shadow: var(--oc-shadow-md);
    transition: all var(--oc-transition-normal);
}

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

.oc-product-image {
    width: 100%;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.oc-product-content h3 {
    font-size: 1.125rem;
    margin-bottom: 8px;
    color: var(--oc-gray-900);
}

.oc-product-desc {
    color: var(--oc-gray-600);
    margin-bottom: 16px;
    font-size: 0.875rem;
    line-height: 1.6;
}

.oc-product-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.oc-spec-tag {
    padding: 4px 10px;
    background: var(--oc-gray-100);
    border-radius: 4px;
    font-size: 0.75rem;
    color: var(--oc-gray-600);
}

.oc-product-btn {
    display: block;
    width: 100%;
    text-align: center;
    padding: 10px 20px;
    background: var(--oc-primary-500);
    color: white;
    text-decoration: none;
    border-radius: var(--oc-radius-md);
    font-weight: 500;
    font-size: 0.875rem;
    transition: all var(--oc-transition-fast);
}

.oc-product-btn:hover {
    background: var(--oc-primary-600);
}

/* ===== 联系我们页面 ===== */
.oc-contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
}

.oc-contact-info h2 {
    margin-bottom: 16px;
    font-size: 1.75rem;
}

.oc-contact-info > p {
    margin-bottom: 40px;
    font-size: 1rem;
    color: var(--oc-gray-600);
}

.oc-contact-methods {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.oc-contact-method {
    display: flex;
    gap: 16px;
}

.oc-contact-icon {
    width: 52px;
    height: 52px;
    background: var(--oc-primary-50);
    border-radius: var(--oc-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--oc-primary-600);
    flex-shrink: 0;
}

.oc-contact-details h4 {
    font-size: 1.125rem;
    margin-bottom: 8px;
    color: var(--oc-gray-800);
}

.oc-contact-details p {
    color: var(--oc-gray-600);
    margin-bottom: 4px;
    font-size: 0.9375rem;
}

.oc-contact-form-wrapper {
    background: white;
    padding: 40px;
    border-radius: var(--oc-radius-xl);
    box-shadow: var(--oc-shadow-lg);
}

.oc-contact-form h3 {
    margin-bottom: 8px;
    font-size: 1.5rem;
}

.oc-contact-form > p {
    margin-bottom: 32px;
    color: var(--oc-gray-600);
}

.oc-form-group {
    margin-bottom: 24px;
}

.oc-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.oc-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--oc-gray-700);
    font-size: 0.9375rem;
}

.oc-form-group input,
.oc-form-group select,
.oc-form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--oc-gray-200);
    border-radius: var(--oc-radius-md);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--oc-transition-fast);
    background: white;
    color: var(--oc-gray-800);
}

.oc-form-group input:focus,
.oc-form-group select:focus,
.oc-form-group textarea:focus {
    outline: none;
    border-color: var(--oc-primary-500);
    box-shadow: 0 0 0 4px rgba(14, 165, 233, 0.1);
}

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

.oc-checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.oc-checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: var(--oc-primary-500);
}

.oc-checkbox-group label {
    font-weight: 400;
    margin: 0;
    line-height: 1.5;
}

.oc-checkbox-group a {
    color: var(--oc-primary-600);
    text-decoration: underline;
}

/* ===== 服务网络 ===== */
.oc-service-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.oc-service-card {
    background: white;
    padding: 32px;
    border-radius: var(--oc-radius-xl);
    box-shadow: var(--oc-shadow-md);
    border: 1px solid var(--oc-gray-100);
}

.oc-service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--oc-gray-900);
}

.oc-service-area {
    color: var(--oc-primary-600);
    font-weight: 500;
    margin-bottom: 16px;
    font-size: 0.9375rem;
}

.oc-service-list {
    list-style: none;
}

.oc-service-list li {
    padding: 8px 0;
    color: var(--oc-gray-600);
    font-size: 0.9375rem;
    border-bottom: 1px solid var(--oc-gray-100);
}

.oc-service-list li:last-child {
    border-bottom: none;
}

/* ===== 404页面 ===== */
.oc-error-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.oc-error-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
}

.oc-error-content {
    text-align: center;
    /* max-width: 600px; */
}

.oc-error-illustration {
    margin-bottom: 32px;
}

.oc-error-illustration svg {
    max-width: 100%;
    height: auto;
}

.oc-error-code {
    font-size: 8rem;
    font-weight: 800;
    background: var(--oc-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}

.oc-error-title {
    font-size: 2rem;
    margin-bottom: 16px;
    color: var(--oc-gray-800);
}

.oc-error-message {
    font-size: 1.125rem;
    color: var(--oc-gray-600);
    margin-bottom: 32px;
    line-height: 1.8;
}

.oc-error-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
}

.oc-error-suggestions h3 {
    font-size: 1.125rem;
    margin-bottom: 16px;
    color: var(--oc-gray-700);
}

.oc-error-suggestions ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.oc-error-suggestions a {
    color: var(--oc-primary-600);
    font-weight: 500;
    text-decoration: none;
}

.oc-error-suggestions a:hover {
    text-decoration: underline;
}

/* ===== 隐私政策页面 ===== */
.oc-privacy-content {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 48px;
}

.oc-privacy-nav {
    position: sticky;
    top: 100px;
    align-self: start;
}

.oc-privacy-nav h4 {
    margin-bottom: 20px;
    color: var(--oc-gray-800);
}

.oc-privacy-nav ul {
    list-style: none;
    border-left: 3px solid var(--oc-gray-200);
    padding-left: 16px;
}

.oc-privacy-nav li {
    margin-bottom: 12px;
}

.oc-privacy-nav a {
    color: var(--oc-gray-600);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--oc-transition-fast);
    font-size: 0.9375rem;
}

.oc-privacy-nav a:hover {
    color: var(--oc-primary-600);
}

.oc-privacy-section-item {
    margin-bottom: 48px;
}

.oc-privacy-section-item h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--oc-gray-800);
    padding-top: 100px;
    margin-top: -100px;
}

.oc-privacy-section-item h3 {
    font-size: 1.125rem;
    margin-bottom: 12px;
    color: var(--oc-gray-700);
}

.oc-privacy-section-item p {
    margin-bottom: 16px;
    line-height: 1.8;
    color: var(--oc-gray-600);
}

.oc-privacy-section-item ul {
    margin: 20px 0;
    padding-left: 24px;
}

.oc-privacy-section-item li {
    margin-bottom: 12px;
    color: var(--oc-gray-600);
    line-height: 1.6;
}

.oc-privacy-contact-box {
    background: var(--oc-primary-50);
    padding: 24px;
    border-radius: var(--oc-radius-md);
    margin-top: 20px;
}

.oc-privacy-contact-box p {
    margin-bottom: 8px;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
    .oc-products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1024px) {
    .oc-hero-text h1 {
        font-size: 2.75rem;
    }

    .oc-section-header h2 {
        font-size: 2rem;
    }

    .oc-categories-grid,
    .oc-scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .oc-about-content {
        grid-template-columns: 1fr;
    }

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

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

    .oc-privacy-content {
        grid-template-columns: 1fr;
    }

    .oc-privacy-nav {
        display: none;
    }

    .oc-service-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .oc-section {
        padding: 60px 0;
    }

    .oc-hero {
        min-height: 600px;
    }

    .oc-hero-text h1 {
        font-size: 2.25rem;
    }

    .oc-section-header h2 {
        font-size: 1.75rem;
    }

    .oc-nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        transform: translateY(-100%);
        opacity: 0;
        transition: all var(--oc-transition-normal);
        pointer-events: none;
        box-shadow: var(--oc-shadow-lg);
    }

    .oc-nav-menu.oc-active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .oc-mobile-btn {
        display: flex;
    }

    .oc-mobile-btn.oc-active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .oc-mobile-btn.oc-active span:nth-child(2) {
        opacity: 0;
    }

    .oc-mobile-btn.oc-active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .oc-hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .oc-hero-stats {
        justify-content: center;
    }

    .oc-categories-grid,
    .oc-scenarios-grid {
        grid-template-columns: 1fr;
    }

    .oc-products-grid {
        grid-template-columns: 1fr;
    }

    .oc-advantages {
        grid-template-columns: 1fr;
    }

    .oc-footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .oc-form-row {
        grid-template-columns: 1fr;
    }

    .oc-cta-contact {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }

    .oc-error-code {
        font-size: 5rem;
    }

    .oc-error-actions {
        flex-direction: column;
        align-items: center;
    }

    .oc-error-suggestions ul {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .oc-container {
        padding: 0 16px;
    }

    .oc-hero-text h1 {
        font-size: 1.875rem;
    }

    .oc-hero-stats {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }

    .oc-stat-item {
        align-items: center;
    }

    .oc-product-filter {
        flex-direction: column;
    }

    .oc-filter-btn {
        width: 100%;
    }

    .oc-contact-form-wrapper {
        padding: 24px;
    }

    .oc-contact-methods {
        gap: 24px;
    }

    .oc-page-header h1 {
        font-size: 2rem;
    }
}
/* ===== Industry News Section (oc-industry-news) ===== */
.oc-industry-news {
    padding: 80px 0;
    background: #f8fafc;
    position: relative;
}

.oc-industry-news .oc-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.oc-industry-news .oc-section-header {
    text-align: center;
    margin-bottom: 48px;
}

.oc-industry-news .oc-section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.oc-industry-news .oc-section-header p {
    font-size: 1.125rem;
    color: #475569;
    max-width: 620px;
    margin: 0 auto;
}

/* 网格布局 */
.oc-news-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 48px;
}

/* 卡片样式 */
.oc-news-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 28px 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9f0f5;
}

.oc-news-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 30px -12px rgba(0, 0, 0, 0.1);
    border-color: #cbdff2;
}

/* 日期徽章 */
.oc-news-date {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eef9ff 0%, #e0f2fe 100%);
    width: 70px;
    height: 70px;
    border-radius: 18px;
    margin-bottom: 20px;
    color: #0c4a6e;
    font-weight: 600;
}

.oc-news-day {
    font-size: 26px;
    line-height: 1.2;
    font-weight: 800;
    color: #0369a1;
}

.oc-news-month {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 标题 */
.oc-news-title {
    font-size: 1.35rem;
    font-weight: 600;
    line-height: 1.4;
    margin: 0 0 14px 0;
    color: #0f172a;
}

/* 摘要 */
.oc-news-excerpt {
    font-size: 0.95rem;
    line-height: 1.5;
    color: #475569;
    margin-bottom: 20px;
}

/* 链接 */
.oc-news-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
    color: #0ea5e9;
    text-decoration: none;
    font-size: 0.9rem;
    transition: gap 0.2s ease, color 0.2s;
}

.oc-news-link:hover {
    color: #0369a1;
    gap: 10px;
}

/* 底部按钮容器 */
.oc-news-footer {
    text-align: center;
}

.oc-btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: 2px solid #0ea5e9;
    color: #0ea5e9;
    padding: 12px 32px;
    border-radius: 40px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.oc-btn-outline:hover {
    background: #0ea5e9;
    color: white;
    border-color: #0ea5e9;
    transform: translateY(-2px);
}

/* ===== 响应式布局 ===== */
/* 平板 (1024px 及以下) */
@media (max-width: 1024px) {
    .oc-news-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    .oc-industry-news {
        padding: 60px 0;
    }
}

/* 手机大屏 (768px 及以下) */
@media (max-width: 768px) {
    .oc-industry-news .oc-section-header h2 {
        font-size: 1.8rem;
    }
    .oc-industry-news .oc-section-header p {
        font-size: 1rem;
        padding: 0 16px;
    }
    .oc-news-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .oc-news-card {
        padding: 24px 20px;
    }
    .oc-news-date {
        width: 60px;
        height: 60px;
    }
    .oc-news-day {
        font-size: 22px;
    }
    .oc-news-title {
        font-size: 1.25rem;
    }
    .oc-industry-news {
        padding: 48px 0;
    }
    .oc-news-footer .oc-btn-outline {
        padding: 10px 28px;
        font-size: 0.9rem;
    }
}

/* 小手机 (480px 及以下) */
@media (max-width: 480px) {
    .oc-industry-news .oc-container {
        padding: 0 16px;
    }
    .oc-news-card {
        padding: 20px 16px;
    }
    .oc-news-title {
        font-size: 1.2rem;
    }
    .oc-news-excerpt {
        font-size: 0.9rem;
    }
}
/* ================================
   Related Topics / Article Category
   Scoped CSS - Only for this module
   ================================ */

.oc-article-category {
    width: 100%;
    padding: 80px 0;
    background: #f5f8fb;
    color: #1f2933;
    overflow: hidden;
}

.oc-article-category,
.oc-article-category * {
    box-sizing: border-box;
}

.oc-article-category .oc-container {
    width: min(1400px, calc(100% - 40px));
    margin: 0 auto;
}

/* Title Area */
.oc-article-category .oc-category-title {
    margin-bottom: 36px;
}

.oc-article-category .oc-category-title h2 {
    margin: 0 0 16px;
    font-size: 34px;
    line-height: 1.25;
    font-weight: 700;
    color: #111827;
    letter-spacing: -0.03em;
}

.oc-article-category .oc-category-title .tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0 8px 10px 0;
    padding: 8px 16px;
    border-radius: 999px;
    background: #ffffff;
    color: #2563eb;
    font-size: 14px;
    line-height: 1;
    font-weight: 600;
    border: 1px solid rgba(37, 99, 235, 0.16);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.05);
}

/* Grid */
.oc-article-category .oc-article-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
}

/* Card */
.oc-article-category .oc-article-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    background: #ffffff;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: 0 12px 34px rgba(15, 23, 42, 0.08);
    transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}

.oc-article-category .oc-article-card:hover {
    transform: translateY(-6px);
    border-color: rgba(37, 99, 235, 0.22);
    box-shadow: 0 22px 50px rgba(15, 23, 42, 0.14);
}

/* Image */
.oc-article-category .oc-article-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    background: #e5eaf0;
    overflow: hidden;
}

.oc-article-category .oc-article-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.oc-article-category .oc-article-card:hover .oc-article-image img {
    transform: scale(1.06);
}

/* Content */
.oc-article-category .oc-article-content {
    display: flex;
    flex-direction: column;
    flex: 1 1 auto;
    padding: 22px;
}

.oc-article-category .oc-article-content h3,.oc-article-category .oc-article-content h4,.oc-article-category .oc-article-content h5 {
    margin: 0 0 12px;
    font-size: 19px;
    line-height: 1.35;
    font-weight: 700;
    color: #111827;
}

.oc-article-category .oc-article-content h3 a,.oc-article-category .oc-article-content h4 a,.oc-article-category .oc-article-content h5 a {
    color: #24994f;
    text-decoration: none;
    transition: color 0.25s ease;
}

.oc-article-category .oc-article-content h3 a:hover,.oc-article-category .oc-article-content h4 a:hover,.oc-article-category .oc-article-content h5 a:hover {
    color: #2563eb;
}

.oc-article-category .oc-article-desc {
    margin: 0 0 22px;
    color: #5b6675;
    font-size: 15px;
    line-height: 1.65;
}

/* Button */
.oc-article-category .oc-article-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: max-content;
    max-width: 100%;
    margin-top: auto;
    padding: 11px 18px;
    border-radius: 999px;
    background: #111827;
    color: #ffffff;
    font-size: 14px;
    line-height: 1;
    font-weight: 700;
    text-decoration: none;
    transition: background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.oc-article-category .oc-article-btn:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.28);
}

/* PC - Medium screens */
@media (max-width: 1280px) {
    .oc-article-category {
        padding: 70px 0;
    }

    .oc-article-category .oc-article-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 22px;
    }
}

/* Tablet */
@media (max-width: 991px) {
    .oc-article-category {
        padding: 60px 0;
    }

    .oc-article-category .oc-container {
        width: min(100% - 32px, 900px);
    }

    .oc-article-category .oc-category-title h2 {
        font-size: 30px;
    }

    .oc-article-category .oc-article-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 20px;
    }

    .oc-article-category .oc-article-content {
        padding: 20px;
    }
}

/* Mobile */
@media (max-width: 640px) {
    .oc-article-category {
        padding: 48px 0;
    }

    .oc-article-category .oc-container {
        width: calc(100% - 24px);
    }

    .oc-article-category .oc-category-title {
        margin-bottom: 26px;
    }

    .oc-article-category .oc-category-title h2 {
        font-size: 26px;
    }

    .oc-article-category .oc-category-title .tag {
        padding: 7px 13px;
        font-size: 13px;
    }

    .oc-article-category .oc-article-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .oc-article-category .oc-article-card {
        border-radius: 16px;
    }

    .oc-article-category .oc-article-content h3 {
        font-size: 18px;
    }

    .oc-article-category .oc-article-desc {
        font-size: 14px;
    }

    .oc-article-category .oc-article-btn {
        width: 100%;
        padding: 13px 18px;
    }
}

/* Small mobile */
@media (max-width: 420px) {
    .oc-article-category .oc-category-title h2 {
        font-size: 24px;
    }

    .oc-article-category .oc-article-content {
        padding: 18px;
    }
}

/* Flex fallback for very old browsers that do not support CSS Grid */
@supports not (display: grid) {
    .oc-article-category .oc-article-grid {
        display: flex;
        flex-wrap: wrap;
        margin: -12px;
    }

    .oc-article-category .oc-article-card {
        width: calc(25% - 24px);
        margin: 12px;
    }

    @media (max-width: 1280px) {
        .oc-article-category .oc-article-card {
            width: calc(33.333% - 24px);
        }
    }

    @media (max-width: 991px) {
        .oc-article-category .oc-article-card {
            width: calc(50% - 24px);
        }
    }

    @media (max-width: 640px) {
        .oc-article-category .oc-article-card {
            width: calc(100% - 24px);
        }
    }
}

/* ================================
   Breadcrumb + PDF Link
   Scoped CSS
   ================================ */

.oc-navpath,
.pdf-link {
    box-sizing: border-box;
}

/* Breadcrumb */
.oc-navpath {
    width: min(1400px, calc(100% - 40px));
    margin: 24px auto 18px;
    padding: 14px 18px;
    border-radius: 14px;
    background: #f6f8fb;
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: #64748b;
    font-size: 14px;
    line-height: 1.6;
    word-break: break-word;
}

.oc-navpath a {
    color: #334155;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.25s ease;
}

.oc-navpath a:hover {
    color: #2563eb;
}

/* PDF Link Box */
.pdf-link {
    width: min(1400px, calc(100% - 40px));
    margin: 0 auto 34px;
    padding: 0;
}

.pdf-link a {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 18px 22px 18px 54px;
    border-radius: 16px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fbff 100%);
    border: 1px solid rgba(37, 99, 235, 0.16);
    color: #1e3a8a;
    font-size: 15px;
    line-height: 1.55;
    font-weight: 700;
    text-decoration: none;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, color 0.25s ease;
    word-break: break-word;
}

.pdf-link a::before {
    content: "PDF";
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: #dc2626;
    color: #ffffff;
    font-size: 10px;
    line-height: 1;
    font-weight: 800;
    letter-spacing: 0.04em;
}

.pdf-link a::after {
    content: "↗";
    flex: 0 0 auto;
    margin-left: auto;
    color: #2563eb;
    font-size: 18px;
    line-height: 1;
    transition: transform 0.25s ease;
}

.pdf-link a:hover {
    color: #2563eb;
    border-color: rgba(37, 99, 235, 0.35);
    box-shadow: 0 18px 42px rgba(37, 99, 235, 0.12);
    transform: translateY(-2px);
}

.pdf-link a:hover::after {
    transform: translate(2px, -2px);
}

/* Medium PC */
@media (max-width: 1280px) {
    .oc-navpath,
    .pdf-link {
        width: min(100% - 36px, 1100px);
    }
}

/* Tablet */
@media (max-width: 991px) {
    .oc-navpath {
        margin-top: 20px;
        padding: 13px 16px;
        font-size: 13px;
    }

    .pdf-link {
        margin-bottom: 28px;
    }

    .pdf-link a {
        padding: 16px 20px 16px 52px;
        font-size: 14px;
    }
}

/* Mobile */
@media (max-width: 640px) {
    .oc-navpath,
    .pdf-link {
        width: calc(100% - 24px);
    }

    .oc-navpath {
        margin: 16px auto 14px;
        padding: 12px 14px;
        border-radius: 12px;
        font-size: 12px;
    }

    .pdf-link {
        margin-bottom: 24px;
    }

    .pdf-link a {
        align-items: flex-start;
        padding: 15px 16px 15px 50px;
        border-radius: 14px;
        font-size: 13px;
        line-height: 1.55;
    }

    .pdf-link a::before {
        left: 15px;
        top: 16px;
        transform: none;
        width: 26px;
        height: 26px;
        border-radius: 7px;
        font-size: 9px;
    }

    .pdf-link a::after {
        display: none;
    }
}

/* Small Mobile */
@media (max-width: 420px) {
    .oc-navpath {
        font-size: 12px;
    }

    .pdf-link a {
        padding: 14px 14px 14px 48px;
    }
}

/* ================================
   Infrastructure & Power Insights
   Scoped CSS - Only for this module
   ================================ */

.oc-infrastructure-insights {
    width: 100%;
    padding: 80px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f4f7fb 100%);
    color: #111827;
    overflow: hidden;
}

.oc-infrastructure-insights,
.oc-infrastructure-insights * {
    box-sizing: border-box;
}

.oc-infrastructure-insights .oc-container {
    width: min(1400px, calc(100% - 40px));
    margin: 0 auto;
}

/* Title */
.oc-infrastructure-insights .section-title {
    margin-bottom: 36px;
    text-align: center;
}

.oc-infrastructure-insights .section-title h2 {
    position: relative;
    display: inline-block;
    margin: 0;
    padding-bottom: 16px;
    font-size: 36px;
    line-height: 1.25;
    font-weight: 800;
    color: #111827;
    letter-spacing: -0.03em;
}

.oc-infrastructure-insights .section-title h2::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 72px;
    height: 4px;
    border-radius: 999px;
    background: #2563eb;
    transform: translateX(-50%);
}

/* List Grid */
.oc-infrastructure-insights .ilistss {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    width: 100%;
    margin: 0;
    padding: 0;
    list-style: none;
}

.oc-infrastructure-insights .ilistss li {
    min-width: 0;
    margin: 0;
    padding: 0;
}

/* Link Card */
.oc-infrastructure-insights .ilistss li a {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 58px;
    width: 100%;
    padding: 15px 18px 15px 46px;
    border-radius: 14px;
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: #334155;
    font-size: 15px;
    line-height: 1.45;
    font-weight: 600;
    text-align: left;
    text-decoration: none;
    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.05);
    transition: color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease, background 0.25s ease;
    white-space: normal;
    word-break: break-word;
}

/* Override Bootstrap btn styles only inside this module */
.oc-infrastructure-insights .ilistss li a.btn,
.oc-infrastructure-insights .ilistss li a.btn-link {
    margin: 0;
    border-radius: 14px;
    text-decoration: none;
}

/* Small icon dot */
.oc-infrastructure-insights .ilistss li a::before {
    content: "";
    position: absolute;
    left: 18px;
    top: 50%;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #2563eb;
    box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.1);
    transform: translateY(-50%);
    transition: background 0.25s ease, box-shadow 0.25s ease;
}

/* Arrow */
.oc-infrastructure-insights .ilistss li a::after {
    content: "›";
    flex: 0 0 auto;
    margin-left: auto;
    padding-left: 14px;
    color: #94a3b8;
    font-size: 22px;
    line-height: 1;
    font-weight: 400;
    transition: color 0.25s ease, transform 0.25s ease;
}

.oc-infrastructure-insights .ilistss li a:hover {
    color: #2563eb;
    border-color: rgba(37, 99, 235, 0.28);
    background: linear-gradient(135deg, #ffffff 0%, #f8fbff 100%);
    box-shadow: 0 18px 42px rgba(37, 99, 235, 0.12);
    transform: translateY(-3px);
}

.oc-infrastructure-insights .ilistss li a:hover::before {
    background: #1d4ed8;
    box-shadow: 0 0 0 7px rgba(37, 99, 235, 0.14);
}

.oc-infrastructure-insights .ilistss li a:hover::after {
    color: #2563eb;
    transform: translateX(3px);
}

/* Large PC */
@media (min-width: 1441px) {
    .oc-infrastructure-insights .ilistss {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

/* Medium PC */
@media (max-width: 1280px) {
    .oc-infrastructure-insights {
        padding: 70px 0;
    }

    .oc-infrastructure-insights .oc-container {
        width: min(1200px, calc(100% - 36px));
    }

    .oc-infrastructure-insights .ilistss {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 13px;
    }

    .oc-infrastructure-insights .section-title h2 {
        font-size: 34px;
    }
}

/* Tablet */
@media (max-width: 991px) {
    .oc-infrastructure-insights {
        padding: 60px 0;
    }

    .oc-infrastructure-insights .oc-container {
        width: calc(100% - 32px);
    }

    .oc-infrastructure-insights .section-title {
        margin-bottom: 30px;
    }

    .oc-infrastructure-insights .section-title h2 {
        font-size: 30px;
    }

    .oc-infrastructure-insights .ilistss {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }

    .oc-infrastructure-insights .ilistss li a {
        min-height: 56px;
        padding: 14px 16px 14px 44px;
        font-size: 14px;
    }
}

/* Mobile */
@media (max-width: 640px) {
    .oc-infrastructure-insights {
        padding: 48px 0;
    }

    .oc-infrastructure-insights .oc-container {
        width: calc(100% - 24px);
    }

    .oc-infrastructure-insights .section-title {
        margin-bottom: 24px;
    }

    .oc-infrastructure-insights .section-title h2 {
        font-size: 26px;
        padding-bottom: 14px;
    }

    .oc-infrastructure-insights .section-title h2::after {
        width: 58px;
        height: 3px;
    }

    .oc-infrastructure-insights .ilistss {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .oc-infrastructure-insights .ilistss li a {
        min-height: auto;
        padding: 14px 42px 14px 42px;
        border-radius: 13px;
        font-size: 14px;
        line-height: 1.5;
    }

    .oc-infrastructure-insights .ilistss li a::before {
        left: 16px;
        width: 8px;
        height: 8px;
        box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.1);
    }

    .oc-infrastructure-insights .ilistss li a::after {
        position: absolute;
        right: 16px;
        top: 50%;
        margin-left: 0;
        padding-left: 0;
        transform: translateY(-50%);
    }

    .oc-infrastructure-insights .ilistss li a:hover::after {
        transform: translate(3px, -50%);
    }
}

/* Small Mobile */
@media (max-width: 420px) {
    .oc-infrastructure-insights .section-title h2 {
        font-size: 24px;
    }

    .oc-infrastructure-insights .ilistss li a {
        padding: 13px 38px 13px 40px;
        font-size: 13px;
    }
}

/* Flex fallback for old browsers without CSS Grid */
@supports not (display: grid) {
    .oc-infrastructure-insights .ilistss {
        display: flex;
        flex-wrap: wrap;
        margin: -7px;
    }

    .oc-infrastructure-insights .ilistss li {
        width: calc(33.333% - 14px);
        margin: 7px;
    }

    @media (min-width: 1441px) {
        .oc-infrastructure-insights .ilistss li {
            width: calc(25% - 14px);
        }
    }

    @media (max-width: 991px) {
        .oc-infrastructure-insights .ilistss li {
            width: calc(50% - 14px);
        }
    }

    @media (max-width: 640px) {
        .oc-infrastructure-insights .ilistss li {
            width: calc(100% - 14px);
        }
    }
}

/* ================================
   Fix related article list inside oc-article-grid
   ================================ */

.oc-article-category .oc-article-grid.oc-article-grid-list {
    display: block !important;
    grid-template-columns: none !important;
    gap: 0 !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list {
    width: 100% !important;
    max-width: 1400px !important;
    margin: 0 auto !important;
    padding: 0 !important;
    list-style: none !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .blog-news {
    display: flex !important;
    align-items: stretch !important;
    gap: 26px !important;
    width: 100% !important;
    margin: 0 0 28px !important;
    padding: 22px !important;
    background: #ffffff !important;
    border: 1px solid rgba(15, 23, 42, 0.08) !important;
    border-radius: 20px !important;
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.07) !important;
    overflow: hidden !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .blog-news > a:first-child {
    display: block !important;
    flex: 0 0 320px !important;
    width: 320px !important;
    max-width: 320px !important;
    height: 220px !important;
    border-radius: 16px !important;
    overflow: hidden !important;
    background: #e5eaf0 !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .blog-news > a:first-child img {
    display: block !important;
    width: 100% !important;
    height: 100% !important;
    object-fit: cover !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .gathering-text {
    display: flex !important;
    flex-direction: column !important;
    flex: 1 1 auto !important;
    min-width: 0 !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .news_list_ids {
    margin: 0 0 12px !important;
    padding: 0 !important;
    font-size: 25px !important;
    line-height: 1.32 !important;
    font-weight: 800 !important;
    color: #111827 !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .news_list_ids a {
    color: #24994f !important;
    text-decoration: none !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .gathering-text p {
    display: -webkit-box !important;
    margin: 0 0 20px !important;
    color: #5b6675 !important;
    font-size: 15px !important;
    line-height: 1.75 !important;
    overflow: hidden !important;
    -webkit-line-clamp: 4 !important;
    -webkit-box-orient: vertical !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .gathering-text > a {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: max-content !important;
    max-width: 100% !important;
    margin-top: auto !important;
    padding: 11px 18px !important;
    border-radius: 999px !important;
    background: #24994f !important;
    color: #ffffff !important;
    font-size: 14px !important;
    font-weight: 700 !important;
    text-decoration: none !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .gathering-text br {
    display: none !important;
}

/* Tablet */
@media screen and (max-width: 991px) {
    .oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .blog-news {
        gap: 20px !important;
        padding: 18px !important;
    }

    .oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .blog-news > a:first-child {
        flex-basis: 240px !important;
        width: 240px !important;
        max-width: 240px !important;
        height: 180px !important;
    }

    .oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .news_list_ids {
        font-size: 21px !important;
    }
}

/* Mobile */
@media screen and (max-width: 767px) {
    .oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .blog-news {
        flex-direction: column !important;
        gap: 0 !important;
        padding: 0 !important;
    }

    .oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .blog-news > a:first-child {
        flex: none !important;
        width: 100% !important;
        max-width: none !important;
        height: 220px !important;
        border-radius: 18px 18px 0 0 !important;
    }

    .oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .gathering-text {
        padding: 18px !important;
    }

    .oc-article-category .oc-article-grid.oc-article-grid-list .related-article-list .gathering-text > a {
        width: 100% !important;
    }
}
/* ================================
   Related Article List - FAQ Submodule
   Only for FAQ inside .related-article-list
   ================================ */

/* FAQ标题：FAQs about ... */
.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text > h2:not(.news_list_ids) {
    position: relative !important;
    margin: 18px 0 12px !important;
    padding: 14px 16px 14px 42px !important;
    border-radius: 14px !important;
    background: linear-gradient(135deg, #f0fdf4 0%, #f8fafc 100%) !important;
    border: 1px solid rgba(36, 153, 79, 0.18) !important;
    color: #14532d !important;
    font-size: 17px !important;
    line-height: 1.4 !important;
    font-weight: 800 !important;
    letter-spacing: -0.01em !important;
}

/* FAQ标题前的小图标 */
.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text > h2:not(.news_list_ids)::before {
    content: "Q" !important;
    position: absolute !important;
    left: 14px !important;
    top: 50% !important;
    width: 20px !important;
    height: 20px !important;
    border-radius: 50% !important;
    background: #24994f !important;
    color: #ffffff !important;
    font-size: 12px !important;
    line-height: 20px !important;
    font-weight: 800 !important;
    text-align: center !important;
    transform: translateY(-50%) !important;
}

/* FAQ标题链接 */
.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text > h2:not(.news_list_ids) a {
    color: #14532d !important;
    text-decoration: none !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text > h2:not(.news_list_ids) a:hover {
    color: #24994f !important;
}

/* FAQ整体盒子 */
.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text .faq-item {
    margin: 0 !important;
    padding: 16px 18px !important;
    border-radius: 16px !important;
    background: #f8fafc !important;
    border: 1px solid rgba(15, 23, 42, 0.08) !important;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9) !important;
}

/* FAQ问题 */
.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text .faq-item h3 {
    position: relative !important;
    margin: 0 0 8px !important;
    padding: 0 0 0 22px !important;
    color: #111827 !important;
    font-size: 15px !important;
    line-height: 1.45 !important;
    font-weight: 800 !important;
}

/* FAQ问题前的小点 */
.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text .faq-item h3::before {
    content: "" !important;
    position: absolute !important;
    left: 0 !important;
    top: 8px !important;
    width: 8px !important;
    height: 8px !important;
    border-radius: 50% !important;
    background: #24994f !important;
    box-shadow: 0 0 0 4px rgba(36, 153, 79, 0.12) !important;
}

/* FAQ问题中的链接 */
.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text .faq-item h3 a {
    color: #111827 !important;
    text-decoration: none !important;
}

.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text .faq-item h3 a:hover {
    color: #24994f !important;
}

/* FAQ答案 */
.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text .faq-item p {
    display: block !important;
    margin: 0 0 14px !important;
    padding: 0 0 0 22px !important;
    max-height: none !important;
    color: #64748b !important;
    font-size: 14px !important;
    line-height: 1.65 !important;
    overflow: visible !important;
    -webkit-line-clamp: unset !important;
    -webkit-box-orient: unset !important;
}

/* 最后一个答案去掉底部间距 */
.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text .faq-item p:last-child {
    margin-bottom: 0 !important;
}

/* FAQ模块与PDF按钮之间的间距 */
.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text > a + br + h2,
.oc-article-category .oc-article-grid.oc-article-grid-list 
.related-article-list .blog-news .gathering-text > a + h2 {
    margin-top: 18px !important;
}

/* 移动端适配 */
@media screen and (max-width: 767px) {
    .oc-article-category .oc-article-grid.oc-article-grid-list 
    .related-article-list .blog-news .gathering-text > h2:not(.news_list_ids) {
        margin-top: 16px !important;
        padding: 13px 14px 13px 40px !important;
        font-size: 15px !important;
        border-radius: 13px !important;
    }

    .oc-article-category .oc-article-grid.oc-article-grid-list 
    .related-article-list .blog-news .gathering-text .faq-item {
        padding: 14px !important;
        border-radius: 14px !important;
    }

    .oc-article-category .oc-article-grid.oc-article-grid-list 
    .related-article-list .blog-news .gathering-text .faq-item h3 {
        font-size: 14px !important;
        line-height: 1.45 !important;
    }

    .oc-article-category .oc-article-grid.oc-article-grid-list 
    .related-article-list .blog-news .gathering-text .faq-item p {
        font-size: 13px !important;
        line-height: 1.6 !important;
    }
}

/* ================================
   Footer Quick Links Menu
   Scoped CSS - Only for .oc-footer-menu
   ================================ */

.oc-footer .oc-footer-menu {
    width: 100%;
    margin: 0 0 56px;
    padding: 36px;
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.96) 0%, rgba(30, 41, 59, 0.92) 100%);
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
    overflow: hidden;
}

.oc-footer .oc-footer-menu,
.oc-footer .oc-footer-menu * {
    box-sizing: border-box;
}

.oc-footer .oc-footer-menu h4 {
    position: relative;
    margin: 0 0 28px;
    padding: 0 0 16px;
    color: #ffffff;
    font-size: 24px;
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.oc-footer .oc-footer-menu h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 72px;
    height: 4px;
    border-radius: 999px;
    background: linear-gradient(90deg, #0ea5e9 0%, #22c55e 100%);
}

/* 一级栏目网格 */
.oc-footer .oc-footer-menu .nav_fast_list {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 22px;
    width: 100%;
    margin: 0;
    padding: 0;
    list-style: none;
}

.oc-footer .oc-footer-menu .nav_fast_list > li {
    min-width: 0;
    margin: 0;
    padding: 20px;
    list-style: none;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(148, 163, 184, 0.14);
    transition: transform 0.28s ease, background 0.28s ease, border-color 0.28s ease;
}

.oc-footer .oc-footer-menu .nav_fast_list > li:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.075);
    border-color: rgba(14, 165, 233, 0.35);
}

/* 一级栏目链接 */
.oc-footer .oc-footer-menu .nav_fast_list > li > a {
    position: relative;
    display: block;
    margin: 0 0 14px;
    padding: 0 0 12px 18px;
    color: #ffffff;
    font-size: 16px;
    line-height: 1.4;
    font-weight: 800;
    text-decoration: none;
    border-bottom: 1px solid rgba(148, 163, 184, 0.16);
    transition: color 0.25s ease;
}

.oc-footer .oc-footer-menu .nav_fast_list > li > a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 9px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #0ea5e9;
    box-shadow: 0 0 0 5px rgba(14, 165, 233, 0.12);
}

.oc-footer .oc-footer-menu .nav_fast_list > li > a:hover {
    color: #7dd3fc;
}

/* 二级栏目 */
.oc-footer .oc-footer-menu .nav_level2_list {
    display: flex;
    flex-direction: column;
    gap: 9px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.oc-footer .oc-footer-menu .nav_level2_list li {
    margin: 0;
    padding: 0;
    list-style: none;
}

.oc-footer .oc-footer-menu .nav_level2_list a {
    position: relative;
    display: block;
    padding: 7px 0 7px 16px;
    color: #cbd5e1;
    font-size: 14px;
    line-height: 1.45;
    font-weight: 500;
    text-decoration: none;
    word-break: break-word;
    transition: color 0.25s ease, transform 0.25s ease;
}

.oc-footer .oc-footer-menu .nav_level2_list a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 15px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: rgba(125, 211, 252, 0.75);
    transition: background 0.25s ease, transform 0.25s ease;
}

.oc-footer .oc-footer-menu .nav_level2_list a:hover {
    color: #ffffff;
    transform: translateX(4px);
}

.oc-footer .oc-footer-menu .nav_level2_list a:hover::before {
    background: #22c55e;
    transform: scale(1.25);
}

/* 大屏 PC */
@media screen and (min-width: 1441px) {
    .oc-footer .oc-footer-menu .nav_fast_list {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }
}

/* 普通 PC / 小屏笔记本 */
@media screen and (max-width: 1280px) {
    .oc-footer .oc-footer-menu {
        padding: 32px;
    }

    .oc-footer .oc-footer-menu .nav_fast_list {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 20px;
    }
}

/* 平板横屏 */
@media screen and (max-width: 1024px) {
    .oc-footer .oc-footer-menu {
        margin-bottom: 48px;
        padding: 28px;
        border-radius: 22px;
    }

    .oc-footer .oc-footer-menu .nav_fast_list {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 18px;
    }

    .oc-footer .oc-footer-menu h4 {
        font-size: 22px;
    }
}

/* 平板竖屏 */
@media screen and (max-width: 768px) {
    .oc-footer .oc-footer-menu {
        margin-bottom: 42px;
        padding: 24px;
        border-radius: 20px;
    }

    .oc-footer .oc-footer-menu .nav_fast_list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 16px;
    }

    .oc-footer .oc-footer-menu .nav_fast_list > li {
        padding: 18px;
        border-radius: 16px;
    }

    .oc-footer .oc-footer-menu .nav_fast_list > li > a {
        font-size: 15px;
    }

    .oc-footer .oc-footer-menu .nav_level2_list a {
        font-size: 13px;
    }
}

/* 手机端 */
@media screen and (max-width: 560px) {
    .oc-footer .oc-footer-menu {
        padding: 22px 18px;
        margin-bottom: 36px;
        border-radius: 18px;
    }

    .oc-footer .oc-footer-menu h4 {
        margin-bottom: 22px;
        font-size: 20px;
    }

    .oc-footer .oc-footer-menu h4::after {
        width: 58px;
        height: 3px;
    }

    .oc-footer .oc-footer-menu .nav_fast_list {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .oc-footer .oc-footer-menu .nav_fast_list > li {
        padding: 18px;
    }

    .oc-footer .oc-footer-menu .nav_level2_list {
        gap: 7px;
    }
}

/* 小屏手机 */
@media screen and (max-width: 380px) {
    .oc-footer .oc-footer-menu {
        padding: 20px 16px;
    }

    .oc-footer .oc-footer-menu .nav_fast_list > li {
        padding: 16px;
    }

    .oc-footer .oc-footer-menu .nav_fast_list > li > a {
        font-size: 14px;
    }

    .oc-footer .oc-footer-menu .nav_level2_list a {
        font-size: 12px;
    }
}

/* 老浏览器兼容：不支持 Grid 时使用 Flex */
@supports not (display: grid) {
    .oc-footer .oc-footer-menu .nav_fast_list {
        display: flex;
        flex-wrap: wrap;
        margin: -11px;
    }

    .oc-footer .oc-footer-menu .nav_fast_list > li {
        width: calc(20% - 22px);
        margin: 11px;
    }

    @media screen and (max-width: 1280px) {
        .oc-footer .oc-footer-menu .nav_fast_list > li {
            width: calc(25% - 22px);
        }
    }

    @media screen and (max-width: 1024px) {
        .oc-footer .oc-footer-menu .nav_fast_list > li {
            width: calc(33.333% - 22px);
        }
    }

    @media screen and (max-width: 768px) {
        .oc-footer .oc-footer-menu .nav_fast_list > li {
            width: calc(50% - 22px);
        }
    }

    @media screen and (max-width: 560px) {
        .oc-footer .oc-footer-menu .nav_fast_list > li {
            width: calc(100% - 22px);
        }
    }
}

/* ================================
   Industry News Dynamic Posts
   Scoped CSS - Only for .oc-industry-news
   ================================ */

.oc-industry-news,
.oc-industry-news * {
    box-sizing: border-box;
}

/* 动态新闻图片 */
.oc-industry-news .oc-news-image {
    width: 100%;
    height: 170px;
    margin: 0 0 18px;
    border-radius: 16px;
    overflow: hidden;
    background: #e5eaf0;
}

.oc-industry-news .oc-news-image a {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
}

.oc-industry-news .oc-news-image img {
    display: block;
    width: 100%;
    height: 100%;
    max-width: none;
    border: 0;
    object-fit: cover;
    transition: transform 0.45s ease;
}

.oc-industry-news .oc-news-card:hover .oc-news-image img {
    transform: scale(1.06);
}

/* 标题链接 */
.oc-industry-news .oc-news-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.25s ease;
}

.oc-industry-news .oc-news-title a:hover {
    color: #0ea5e9;
}

/* 让卡片内容高度更统一 */
.oc-industry-news .oc-news-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

/* 摘要限制行数，避免卡片高低不一致 */
.oc-industry-news .oc-news-excerpt {
    display: -webkit-box;
    overflow: hidden;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
}

/* Read more 固定靠底 */
.oc-industry-news .oc-news-link {
    margin-top: auto;
}

/* 兜底卡片：没有数据库内容时显示 */
.oc-industry-news .oc-news-card-full {
    grid-column: 1 / -1;
    text-align: center;
    max-width: 760px;
    margin: 0 auto;
}

.oc-industry-news .oc-news-card-full .oc-news-date {
    margin-left: auto;
    margin-right: auto;
}

/* PC 中屏 */
@media screen and (max-width: 1280px) {
    .oc-industry-news .oc-news-image {
        height: 160px;
    }
}

/* 平板 */
@media screen and (max-width: 1024px) {
    .oc-industry-news .oc-news-image {
        height: 190px;
    }

    .oc-industry-news .oc-news-excerpt {
        -webkit-line-clamp: 3;
    }
}

/* 手机大屏 */
@media screen and (max-width: 768px) {
    .oc-industry-news .oc-news-image {
        height: 220px;
        border-radius: 14px;
    }

    .oc-industry-news .oc-news-card {
        border-radius: 18px;
    }

    .oc-industry-news .oc-news-card-full {
        max-width: 100%;
    }
}

/* 手机 */
@media screen and (max-width: 480px) {
    .oc-industry-news .oc-news-image {
        height: 185px;
        margin-bottom: 16px;
    }

    .oc-industry-news .oc-news-title {
        font-size: 1.15rem;
    }

    .oc-industry-news .oc-news-excerpt {
        font-size: 0.9rem;
        -webkit-line-clamp: 3;
    }
}

/* 小屏手机 */
@media screen and (max-width: 360px) {
    .oc-industry-news .oc-news-image {
        height: 160px;
    }
}
/* ================================
   Industry News Horizontal Date
   Scoped CSS
   ================================ */

.oc-industry-news .oc-news-date-horizontal {
    display: inline-flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: center !important;
    width: auto !important;
    min-width: 118px !important;
    height: 38px !important;
    min-height: 0 !important;
    padding: 0 14px !important;
    margin: 0 0 18px !important;
    border-radius: 999px !important;
    background: linear-gradient(135deg, #eef9ff 0%, #e0f2fe 100%) !important;
    color: #0369a1 !important;
}

.oc-industry-news .oc-news-full-date {
    display: inline-block !important;
    margin: 0 !important;
    padding: 0 !important;
    color: #0369a1 !important;
    font-size: 13px !important;
    line-height: 1 !important;
    font-weight: 800 !important;
    letter-spacing: 0.02em !important;
    white-space: nowrap !important;
}

@media screen and (max-width: 768px) {
    .oc-industry-news .oc-news-date-horizontal {
        height: 36px !important;
        min-width: 108px !important;
        padding: 0 12px !important;
        margin-bottom: 16px !important;
    }

    .oc-industry-news .oc-news-full-date {
        font-size: 12px !important;
    }
}
.oc-footer-bottom p a{
    color: #94a3b8;
}
/* ================================
   404 Recent Technical Articles
   Scoped CSS - Only for 404 page
   ================================ */

.oc-error-page .recent-posts {
    width: 100%;
    max-width: 760px;
    margin: 44px auto 40px;
    padding: 28px;
    border-radius: 22px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fbff 100%);
    border: 1px solid rgba(14, 165, 233, 0.14);
    box-shadow: 0 18px 46px rgba(15, 23, 42, 0.08);
    text-align: left;
    box-sizing: border-box;
}

.oc-error-page .recent-posts,
.oc-error-page .recent-posts * {
    box-sizing: border-box;
}

.oc-error-page .recent-posts h3 {
    position: relative;
    margin: 0 0 22px;
    padding: 0 0 16px 34px;
    color: #0f172a;
    font-size: 22px;
    line-height: 1.3;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.oc-error-page .recent-posts h3::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    width: 22px;
    height: 22px;
    border-radius: 8px;
    background: linear-gradient(135deg, #0ea5e9 0%, #0369a1 100%);
    box-shadow: 0 8px 18px rgba(14, 165, 233, 0.25);
}

.oc-error-page .recent-posts h3::after {
    content: "";
    position: absolute;
    left: 34px;
    right: 0;
    bottom: 0;
    height: 1px;
    background: linear-gradient(90deg, rgba(14, 165, 233, 0.32), rgba(14, 165, 233, 0));
}

/* 兼容原来可能存在的 Font Awesome 图标 */
.oc-error-page .recent-posts h3 i,
.oc-error-page .recent-posts li a i {
    display: none;
}

.oc-error-page .recent-posts ul {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.oc-error-page .recent-posts li {
    min-width: 0;
    margin: 0;
    padding: 0;
    list-style: none;
}

.oc-error-page .recent-posts li a {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 52px;
    width: 100%;
    padding: 13px 16px 13px 42px;
    border-radius: 14px;
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.08);
    color: #334155;
    font-size: 14px;
    line-height: 1.45;
    font-weight: 600;
    text-decoration: none;
    word-break: break-word;
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.045);
    transition: color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease, background 0.25s ease;
}

.oc-error-page .recent-posts li a::before {
    content: "";
    position: absolute;
    left: 16px;
    top: 50%;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #0ea5e9;
    box-shadow: 0 0 0 5px rgba(14, 165, 233, 0.1);
    transform: translateY(-50%);
}

.oc-error-page .recent-posts li a::after {
    content: "›";
    margin-left: auto;
    padding-left: 12px;
    color: #94a3b8;
    font-size: 22px;
    line-height: 1;
    font-weight: 400;
    transition: color 0.25s ease, transform 0.25s ease;
}

.oc-error-page .recent-posts li a:hover {
    color: #0369a1;
    border-color: rgba(14, 165, 233, 0.28);
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
    box-shadow: 0 14px 34px rgba(14, 165, 233, 0.12);
    transform: translateY(-2px);
}

.oc-error-page .recent-posts li a:hover::after {
    color: #0ea5e9;
    transform: translateX(3px);
}

/* 平板 */
@media screen and (max-width: 768px) {
    .oc-error-page .recent-posts {
        margin: 36px auto 34px;
        padding: 24px;
        border-radius: 20px;
    }

    .oc-error-page .recent-posts h3 {
        font-size: 20px;
    }

    .oc-error-page .recent-posts ul {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .oc-error-page .recent-posts li a {
        min-height: 50px;
        font-size: 14px;
    }
}

/* 手机 */
@media screen and (max-width: 480px) {
    .oc-error-page .recent-posts {
        margin: 30px auto 30px;
        padding: 20px 16px;
        border-radius: 18px;
    }

    .oc-error-page .recent-posts h3 {
        margin-bottom: 18px;
        padding-left: 30px;
        font-size: 18px;
    }

    .oc-error-page .recent-posts h3::before {
        width: 20px;
        height: 20px;
        border-radius: 7px;
    }

    .oc-error-page .recent-posts h3::after {
        left: 30px;
    }

    .oc-error-page .recent-posts li a {
        padding: 12px 38px 12px 38px;
        border-radius: 13px;
        font-size: 13px;
    }

    .oc-error-page .recent-posts li a::before {
        left: 15px;
        width: 7px;
        height: 7px;
    }

    .oc-error-page .recent-posts li a::after {
        position: absolute;
        right: 15px;
        top: 50%;
        padding-left: 0;
        transform: translateY(-50%);
    }

    .oc-error-page .recent-posts li a:hover::after {
        transform: translate(3px, -50%);
    }
}

/* 老浏览器兼容：不支持 Grid 时使用 Flex */
@supports not (display: grid) {
    .oc-error-page .recent-posts ul {
        display: flex;
        flex-wrap: wrap;
        margin: -6px;
    }

    .oc-error-page .recent-posts li {
        width: calc(50% - 12px);
        margin: 6px;
    }

    @media screen and (max-width: 768px) {
        .oc-error-page .recent-posts li {
            width: calc(100% - 12px);
        }
    }
}
/* FAQ 模块样式 */
.paa-module {
    margin: 40px 0 30px;
    padding: 20px;
    background: #f9fafb;
    border-radius: 12px;
    border-left: 4px solid #0EA5E9;
}
.paa-module h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #0F172A;
}
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.faq-item {
    background: white;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    transition: all 0.2s ease;
}
.faq-item h3 {
    margin: 0;
    padding: 16px 20px;
    font-size: 1.2rem;
    font-weight: 600;
    background: #ffffff;
    cursor: pointer;
    position: relative;
    user-select: none;
    border-bottom: 1px solid transparent;
    transition: background 0.2s;
}
.faq-item h3:hover {
    background: #f1f5f9;
}
.faq-item h3::after {
    content: "▼";
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.9rem;
    transition: transform 0.2s;
    color: #64748b;
}
.faq-item.active h3::after {
    transform: translateY(-50%) rotate(180deg);
}
.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.2s ease;
    background: #ffffff;
    border-top: 0px solid #e2e8f0;
}
.faq-item.active .faq-answer {
    max-height: 800px;
    padding: 0 20px 20px 20px;
    border-top-width: 1px;
}
.faq-answer p {
    margin: 16px 0 0;
    line-height: 1.6;
    color: #334155;
}
@media (max-width: 768px) {
    .paa-module {
        padding: 15px;
    }
    .paa-module h2 {
        font-size: 1.4rem;
    }
    .faq-item h3 {
        font-size: 1rem;
        padding: 12px 16px;
        padding-right: 40px;
    }
    .faq-answer p {
        font-size: 0.9rem;
    }
}