/* ============================================
   常州企轩信息技术有限公司 - 企业官网样式
   深色科技风格 | PHP 5.x 兼容
   ============================================ */

/* ---------- CSS 变量定义 ---------- */
:root {
    --brand-primary: #1783ff;
    --brand-secondary: #00d4ff;
    --brand-accent: #32ff7d;
    --brand-primary-light: rgba(23,131,255,0.1);
    
    --bg-dark: #0a0e1a;
    --bg-dark-secondary: #0f1629;
    --bg-dark-card: #131b2e;
    
    --text-primary: rgba(255,255,255,0.95);
    --text-secondary: rgba(255,255,255,0.6);
    --text-tertiary: rgba(255,255,255,0.4);
    
    --border-color: rgba(255,255,255,0.06);
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 999px;
    
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-3xl: 64px;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    
    --shadow-glow: 0 0 20px rgba(23,131,255,0.1);
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

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

/* ---------- 顶部导航 ---------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10,14,26,0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 32px;
}

.main-nav a {
    color: var(--text-secondary);
    font-size: 14px;
    transition: color var(--transition-fast);
    position: relative;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--text-primary);
}

.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
}

/* 下拉菜单 */
.main-nav .dropdown {
    position: relative;
}
.main-nav .dropdown-toggle::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    margin-left: 6px;
    vertical-align: middle;
    border-top: 4px solid var(--text-secondary);
    border-right: 4px solid transparent;
    border-left: 4px solid transparent;
    transition: transform 0.2s ease;
}
.main-nav .dropdown:hover .dropdown-toggle::after {
    transform: rotate(180deg);
    border-top-color: var(--text-primary);
}
.main-nav .dropdown-menu {
    position: absolute;
    top: calc(100% + 16px);
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 8px 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 100;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.main-nav .dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}
.main-nav .dropdown-menu a {
    display: block;
    padding: 10px 20px;
    font-size: 13px;
    white-space: nowrap;
    color: var(--text-secondary);
}
.main-nav .dropdown-menu a:hover {
    color: var(--text-primary);
    background: rgba(23,131,255,0.08);
}
.main-nav .dropdown-menu a.active {
    color: var(--brand-primary);
}
    content: '';
    position: absolute;
    bottom: -20px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
}

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

.header-phone {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--brand-primary);
    font-size: 14px;
    font-weight: 500;
}

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

.mobile-menu-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
}

/* ---------- 首页 Banner 轮播 ---------- */
.home-banner-slider {
    position: relative;
    width: 100%;
    height: 560px;
    overflow: hidden;
    margin-top: 64px;
}

.home-banner-slider .slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.home-banner-slider .slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(10,14,26,0.55) 0%, rgba(10,14,26,0.75) 50%, rgba(10,14,26,0.85) 100%);
}

.home-banner-slider .slide-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 32px 40px;
    background: rgba(10,14,26,0.35);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.08);
}

.home-banner-slider .slide-content h2 {
    font-size: 42px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.5), 0 0 60px rgba(0,0,0,0.3);
}

.home-banner-slider .slide-content p {
    font-size: 18px;
    color: rgba(255,255,255,0.95);
    margin-bottom: 32px;
    text-shadow: 0 1px 10px rgba(0,0,0,0.5);
}

.home-banner-slider .slide-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 2;
}

.home-banner-slider .slide-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s ease;
}

.home-banner-slider .slide-dots .dot.active {
    background: #fff;
    width: 28px;
    border-radius: 5px;
}

.home-banner-slider .slide-dots .dot:hover {
    background: rgba(255,255,255,0.8);
}

.home-banner-slider .slide-arrows {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 24px;
    transform: translateY(-50%);
    z-index: 2;
    pointer-events: none;
}

.home-banner-slider .slide-arrows button {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    pointer-events: auto;
}

.home-banner-slider .slide-arrows button:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.4);
}

/* ---------- Hero 区域（兼容旧版） ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(23,131,255,0.15) 0%, transparent 60%);
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(23,131,255,0.1);
    border: 1px solid rgba(23,131,255,0.2);
    border-radius: var(--radius-full);
    font-size: 13px;
    color: var(--brand-primary);
    margin-bottom: 24px;
}

.hero-badge .dot {
    width: 6px;
    height: 6px;
    background: var(--brand-accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.hero-desc strong {
    color: var(--text-primary);
}

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

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(23,131,255,0.3);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 15px;
}

/* ---------- Hero 统计 ---------- */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
}

.hero-stat {
    text-align: center;
}

.hero-stat .number {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
}

.hero-stat .plus {
    color: var(--brand-primary);
}

.hero-stat .label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-size: 12px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ---------- 通用区块 ---------- */
.section {
    padding: 80px 0;
}

/* 深色版：section交替背景，无需section-alt类 */
main > .section:nth-of-type(even) {
    background: var(--bg-dark-secondary);
}

/* 兼容旧版section-alt */
.section-alt {
    background: var(--bg-dark-secondary);
}

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

.section-label {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--brand-primary);
    letter-spacing: 2px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
}

/* ---------- 客户Logo ---------- */
.client-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.client-logo {
    padding: 10px 20px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

.client-logo:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
    background: var(--brand-primary-light);
}

/* ---------- 服务卡片 ---------- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition-normal);
}

.service-card:hover {
    border-color: rgba(23,131,255,0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.service-icon {
    width: 52px;
    height: 52px;
    background: var(--brand-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-primary);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.service-short-desc {
    font-size: 13px;
    color: var(--brand-primary);
    font-weight: 500;
    margin-bottom: 8px;
}

.service-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.service-link {
    font-size: 14px;
    color: var(--brand-primary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.service-link:hover {
    color: var(--brand-secondary);
}

/* ---------- 特色功能 ---------- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-item {
    text-align: center;
    padding: 32px;
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: var(--brand-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-primary);
    margin: 0 auto 16px;
}

.feature-item h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ---------- 案例卡片 ---------- */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.case-card:hover {
    border-color: rgba(23,131,255,0.2);
    box-shadow: var(--shadow-glow);
}

.case-image {
    height: 180px;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    position: relative;
}

.case-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 10px;
    background: rgba(0,0,0,0.3);
    border-radius: var(--radius-full);
    font-size: 12px;
    color: white;
}

.case-content {
    padding: 24px;
}

.case-content h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.case-content p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.case-result {
    background: rgba(50,255,125,0.05);
    border-left: 3px solid var(--brand-accent);
    padding: 12px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin-bottom: 12px;
}

.case-result p {
    font-size: 13px;
    color: var(--brand-accent);
    margin: 0;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.case-tags span {
    padding: 2px 8px;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-full);
    font-size: 12px;
    color: var(--text-tertiary);
}

/* ---------- GEO 区域 ---------- */
.geo-highlight {
    background: linear-gradient(180deg, var(--bg-dark-secondary) 0%, rgba(23,131,255,0.03) 50%, var(--bg-dark-secondary) 100%);
}

.geo-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.geo-content .section-title {
    text-align: left;
}

.geo-features {
    list-style: none;
    margin-top: 20px;
}

.geo-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    color: var(--text-secondary);
    font-size: 15px;
}

.geo-visual {
    display: flex;
    justify-content: center;
}

.geo-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 400px;
    overflow: hidden;
}

.geo-card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.geo-dot {
    width: 8px;
    height: 8px;
    background: var(--brand-accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.geo-card-body {
    padding: 20px;
}

.geo-query, .geo-answer {
    margin-bottom: 16px;
}

.geo-label {
    font-size: 11px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
    display: block;
}

.geo-query p {
    padding: 12px;
    background: rgba(255,255,255,0.03);
    border-radius: var(--radius-sm);
    font-size: 14px;
}

.geo-answer p {
    padding: 12px;
    background: rgba(50,255,125,0.05);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-secondary);
}

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

.news-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.news-card:hover {
    border-color: rgba(23,131,255,0.2);
    box-shadow: var(--shadow-glow);
}

.news-image {
    height: 160px;
    background: linear-gradient(135deg, rgba(23,131,255,0.2), rgba(0,212,255,0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-primary);
}

.news-body {
    padding: 24px;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.news-meta .category {
    padding: 2px 10px;
    background: var(--brand-primary-light);
    color: var(--brand-primary);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 500;
}

.news-meta span {
    font-size: 13px;
    color: var(--text-tertiary);
}

.news-body h3 {
    font-size: 16px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-body p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ---------- 服务区域 ---------- */
.area-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.area-item {
    text-align: center;
    padding: 32px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.area-item:hover {
    border-color: rgba(23,131,255,0.2);
    transform: translateY(-4px);
}

.area-item h4 {
    font-size: 18px;
    margin-bottom: 8px;
}

.area-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ---------- CTA ---------- */
.cta-section {
    text-align: center;
}

/* ---------- 页脚 ---------- */
.site-footer {
    background: var(--bg-dark-secondary);
    border-top: 1px solid var(--border-color);
    padding: 48px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 12px;
    line-height: 1.6;
}

.footer-col h4 {
    font-size: 14px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

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

.footer-col li {
    margin-bottom: 10px;
}

.footer-col a {
    font-size: 14px;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--brand-primary);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-tertiary);
}

/* ---------- 分页 ---------- */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-top: 40px;
}

.pagination a,
.pagination span {
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: all var(--transition-fast);
}

.pagination a {
    color: var(--text-secondary);
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
}

.pagination a:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

.pagination .page-current {
    background: var(--brand-primary);
    color: white;
    font-weight: 500;
}

/* ---------- 栏目页 Banner ---------- */
.page-banner {
    padding: 140px 0 60px;
    text-align: center;
    background: var(--bg-dark-secondary);
    position: relative;
    margin-top: 64px;
}

.page-banner h1 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 12px;
}

.page-banner p {
    font-size: 16px;
    color: var(--text-secondary);
}

.page-banner.has-image {
    background-size: cover;
    background-position: center;
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.page-banner.has-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(10,14,26,0.5) 0%, rgba(10,14,26,0.75) 100%);
}

.page-banner.has-image .container {
    position: relative;
    z-index: 1;
}

.page-banner.has-image h1 {
    color: #fff;
    text-shadow: 0 2px 20px rgba(0,0,0,0.5), 0 0 60px rgba(0,0,0,0.3);
}

.page-banner.has-image p {
    color: rgba(255,255,255,0.85);
}

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
    .services-grid,
    .cases-grid,
    .news-grid,
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .geo-section {
        grid-template-columns: 1fr;
    }
    
    .area-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .home-banner-slider {
        height: 420px;
    }
    
    .home-banner-slider .slide-content h2 {
        font-size: 32px;
    }
    
    .home-banner-slider .slide-content p {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 32px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .services-grid,
    .cases-grid,
    .news-grid,
    .features-grid,
    .area-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 24px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-dark);
        border-bottom: 1px solid var(--border-color);
        padding: 16px 24px;
    }
    
    .main-nav.active {
        display: block;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 0;
    }
    
    .main-nav li {
        border-bottom: 1px solid var(--border-color);
    }
    
    .main-nav a {
        display: block;
        padding: 12px 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .header-phone {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .home-banner-slider {
        height: 360px;
    }
    
    .home-banner-slider .slide-content h2 {
        font-size: 24px;
    }
    
    .home-banner-slider .slide-content p {
        font-size: 14px;
    }
    
    .home-banner-slider .slide-arrows {
        display: none;
    }
}


/* ---------- Footer 补充样式 ---------- */
.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
}

.footer-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 12px;
    line-height: 1.6;
}

.footer-contact-info {
    margin-top: 16px;
}

.footer-contact-info p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.footer-links-bottom {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.footer-links-bottom a {
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.footer-links-bottom a:hover {
    color: var(--brand-primary);
}

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

.footer-qr h4 {
    font-size: 14px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.qr-placeholder {
    width: 120px;
    height: 120px;
    background: rgba(255,255,255,0.03);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    color: var(--text-tertiary);
    font-size: 12px;
}

/* ---------- 关于我们页面 ---------- */
.about-intro-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px;
}

.about-text {
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-secondary);
}

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

.about-text strong {
    color: var(--text-primary);
}

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

.stat-box {
    text-align: center;
    padding: 24px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.stat-num {
    font-size: 32px;
    font-weight: 700;
    color: var(--brand-primary);
    margin-bottom: 4px;
}

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

.timeline-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.t-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: relative;
    padding-top: 48px;
}

.t-year {
    position: absolute;
    top: -12px;
    left: 24px;
    padding: 4px 14px;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    color: white;
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.t-card h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.t-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.team-card {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.team-card:hover {
    border-color: rgba(23,131,255,0.2);
    transform: translateY(-4px);
}

.team-avatar {
    width: 64px;
    height: 64px;
    background: var(--brand-primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-primary);
    margin: 0 auto 16px;
}

.team-card h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.team-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.culture-card {
    padding: 32px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

.culture-card:hover {
    border-color: rgba(23,131,255,0.2);
}

.culture-icon {
    width: 48px;
    height: 48px;
    background: var(--brand-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-primary);
    margin: 0 auto 16px;
}

.culture-card h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

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

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

.honor-card {
    text-align: center;
    padding: 32px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.honor-card svg {
    color: var(--brand-primary);
    margin-bottom: 16px;
}

.honor-card h4 {
    font-size: 15px;
    line-height: 1.5;
}

/* ---------- 服务详情页 ---------- */
.service-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.service-detail-content h2 {
    font-size: 32px;
    margin-bottom: 16px;
}

.service-detail-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

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

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    color: var(--text-secondary);
}

.service-features li svg {
    color: var(--brand-accent);
    flex-shrink: 0;
}

.service-detail-image {
    background: linear-gradient(135deg, rgba(23,131,255,0.1), rgba(0,212,255,0.1));
    border-radius: var(--radius-lg);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ---------- 新闻详情 ---------- */
.news-detail {
    max-width: 800px;
    margin: 0 auto;
}

.news-detail-header {
    margin-bottom: 32px;
}

.news-detail-header h1 {
    font-size: 28px;
    margin-bottom: 16px;
    line-height: 1.4;
}

.news-detail-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-tertiary);
    font-size: 13px;
}

.news-detail-body {
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-secondary);
}

.news-detail-body p {
    margin-bottom: 16px;
}

.news-detail-body h2,
.news-detail-body h3 {
    color: var(--text-primary);
    margin: 24px 0 12px;
}

/* ---------- 联系我们 ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-info-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
}

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

.contact-info-item svg {
    color: var(--brand-primary);
    flex-shrink: 0;
    margin-top: 4px;
}

.contact-info-item h4 {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 4px;
}

.contact-info-item p {
    font-size: 15px;
    color: var(--text-primary);
}

.contact-form {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--brand-primary);
}

/* ---------- 返回顶部 ---------- */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
}

/* ---------- 响应式补充 ---------- */
@media (max-width: 992px) {
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .culture-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .honor-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-detail {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline-cards {
        grid-template-columns: 1fr;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .culture-grid {
        grid-template-columns: 1fr;
    }
    
    .honor-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


/* ============================================
   子页面公共样式补充
   ============================================ */

/* ---------- 按钮变体 ---------- */
.btn-sm {
    padding: 8px 18px;
    font-size: 13px;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-ghost:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
    background: var(--brand-primary-light);
}

/* ---------- 服务项目页 ---------- */
.service-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 48px;
}

.service-intro h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-intro p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.service-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.service-nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 24px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.service-nav-item:hover {
    border-color: var(--brand-primary);
    transform: translateY(-2px);
}

.service-nav-num {
    font-size: 20px;
    font-weight: 700;
    color: var(--brand-primary);
}

.service-nav-name {
    font-size: 14px;
    color: var(--text-primary);
}

.service-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.service-section-reverse {
    direction: rtl;
}

.service-section-reverse > * {
    direction: ltr;
}

.service-section-text h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
}

.service-section-text p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.service-features-list {
    list-style: none;
    margin-bottom: 24px;
}

.service-features-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.service-features-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--brand-accent);
    border-radius: 50%;
    flex-shrink: 0;
}

.service-section-image {
    background: linear-gradient(135deg, rgba(23,131,255,0.1), rgba(0,212,255,0.1));
    border-radius: var(--radius-lg);
    padding: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-primary);
}

.service-section-image svg {
    width: 120px;
    height: 120px;
}

/* 服务流程 */
.process-grid {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0;
}

.process-item {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 180px;
    flex-shrink: 0;
}

.process-num {
    font-size: 28px;
    font-weight: 700;
    color: var(--brand-primary);
    margin-bottom: 12px;
}

.process-icon {
    width: 48px;
    height: 48px;
    background: var(--brand-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-primary);
    margin: 0 auto 12px;
}

.process-item h4 {
    font-size: 15px;
    margin-bottom: 8px;
}

.process-item p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.process-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    color: var(--brand-primary);
    font-size: 24px;
    align-self: center;
}

/* 服务保障 */
.guarantee-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.guarantee-item {
    text-align: center;
    padding: 32px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.guarantee-item:hover {
    border-color: rgba(23,131,255,0.2);
    transform: translateY(-4px);
}

.guarantee-item svg {
    color: var(--brand-primary);
    margin-bottom: 16px;
}

.guarantee-item h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

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

/* ---------- 新闻资讯页 ---------- */
.filter-bar {
    text-align: center;
    margin-bottom: 40px;
}

.news-grid-page {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-page-card {
    display: flex;
    gap: 24px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-normal);
}

.news-page-card:hover {
    border-color: rgba(23,131,255,0.2);
}

.news-page-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 72px;
    padding: 12px;
    background: var(--brand-primary-light);
    border-radius: var(--radius-md);
    text-align: center;
}

.news-page-date .day {
    font-size: 28px;
    font-weight: 700;
    color: var(--brand-primary);
    line-height: 1;
}

.news-page-date .ym {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.news-page-body {
    flex: 1;
    min-width: 0;
}

.news-page-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.badge-blue {
    padding: 2px 10px;
    background: var(--brand-primary-light);
    color: var(--brand-primary);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 500;
}

.news-page-body h3 {
    font-size: 18px;
    margin-bottom: 8px;
    line-height: 1.4;
}

.news-page-body h3 a {
    transition: color var(--transition-fast);
}

.news-page-body h3 a:hover {
    color: var(--brand-primary);
}

.news-page-body p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.6;
}

.read-more {
    font-size: 14px;
    color: var(--brand-primary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.read-more:hover {
    color: var(--brand-secondary);
}

/* ---------- 联系我们页 ---------- */
.contact-cards-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.contact-cards-row .contact-info-card {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.contact-cards-row .contact-info-card:hover {
    border-color: rgba(23,131,255,0.2);
    transform: translateY(-4px);
}

.c-icon {
    width: 56px;
    height: 56px;
    background: var(--brand-primary-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-primary);
    margin: 0 auto 16px;
}

.contact-cards-row .contact-info-card h4 {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 8px;
}

.contact-cards-row .contact-info-card p {
    font-size: 15px;
    color: var(--text-primary);
}

.contact-cards-row .contact-info-card p a {
    transition: color var(--transition-fast);
}

.contact-cards-row .contact-info-card p a:hover {
    color: var(--brand-primary);
}

.contact-form-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.form-header {
    text-align: center;
    margin-bottom: 32px;
}

.form-header h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.form-header p {
    font-size: 14px;
    color: var(--text-secondary);
}

.form-message {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    font-size: 14px;
}

.form-message.success {
    background: rgba(50,255,125,0.08);
    border: 1px solid rgba(50,255,125,0.2);
    color: var(--brand-accent);
}

.form-message.error {
    background: rgba(255,80,80,0.08);
    border: 1px solid rgba(255,80,80,0.2);
    color: #ff5050;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.required {
    color: #ff5050;
}

/* ---------- 响应式补充（子页面） ---------- */
@media (max-width: 992px) {
    .service-section {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .service-section-image {
        padding: 48px;
    }
    
    .service-section-image svg {
        width: 80px;
        height: 80px;
    }
    
    .process-grid {
        gap: 16px;
    }
    
    .process-arrow {
        display: none;
    }
    
    .guarantee-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-page-card {
        flex-direction: column;
        gap: 16px;
    }
    
    .news-page-date {
        flex-direction: row;
        min-width: auto;
        justify-content: flex-start;
        gap: 8px;
        padding: 8px 16px;
    }
    
    .news-page-date .day {
        font-size: 20px;
    }
    
    .contact-cards-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .service-nav {
        flex-direction: column;
    }
    
    .service-nav-item {
        width: 100%;
        justify-content: center;
    }
    
    .service-section-text h3 {
        font-size: 22px;
    }
    
    .process-grid {
        flex-direction: column;
        align-items: stretch;
    }
    
    .process-item {
        width: 100%;
    }
    
    .guarantee-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-cards-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-card {
        padding: 24px;
    }
}


/* ============================================
   新闻详情页样式
   ============================================ */

/* ---------- 面包屑导航 ---------- */
.breadcrumb-wrap {
    background: var(--bg-dark-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-tertiary);
    flex-wrap: wrap;
}

.breadcrumb a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--brand-primary);
}

.breadcrumb .separator {
    display: flex;
    align-items: center;
    color: var(--text-tertiary);
    opacity: 0.5;
}

.breadcrumb .current {
    color: var(--text-primary);
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ---------- 新闻详情布局 ---------- */
.news-detail-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
    align-items: start;
}

.news-detail-main {
    min-width: 0;
}

.news-detail-header {
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.news-detail-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 16px;
    margin-bottom: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

.news-detail-meta svg {
    color: var(--brand-primary);
    vertical-align: text-bottom;
    margin-right: 2px;
}

.meta-dot {
    width: 4px;
    height: 4px;
    background: var(--text-tertiary);
    border-radius: 50%;
    opacity: 0.5;
}

.news-detail-title {
    font-size: 28px;
    font-weight: 700;
    line-height: 1.4;
    color: var(--text-primary);
}

/* ---------- 新闻正文 ---------- */
.news-detail-body {
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-secondary);
}

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

.news-detail-body h2,
.news-detail-body h3,
.news-detail-body h4 {
    color: var(--text-primary);
    margin: 32px 0 16px;
    font-weight: 600;
}

.news-detail-body h2 {
    font-size: 22px;
}

.news-detail-body h3 {
    font-size: 19px;
}

.news-detail-body h4 {
    font-size: 16px;
}

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

.news-detail-body li {
    margin-bottom: 8px;
}

.news-detail-body img {
    border-radius: var(--radius-md);
    margin: 16px 0;
}

.news-detail-body a {
    color: var(--brand-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.news-detail-body a:hover {
    color: var(--brand-secondary);
}

.news-detail-body blockquote {
    border-left: 3px solid var(--brand-primary);
    padding: 12px 20px;
    margin: 20px 0;
    background: var(--brand-primary-light);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
}

/* ---------- 分享栏 ---------- */
.news-detail-share {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}

.news-detail-share p {
    font-size: 14px;
    color: var(--text-tertiary);
    margin-bottom: 12px;
}

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

/* ---------- 侧边栏 ---------- */
.news-detail-sidebar {
    position: sticky;
    top: 80px;
}

.sidebar-card {
    background: var(--bg-dark-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 20px;
}

.sidebar-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

/* 相关文章列表 */
.related-list {
    list-style: none;
}

.related-list li {
    margin-bottom: 12px;
}

.related-list li:last-child {
    margin-bottom: 0;
}

.related-list li a {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.related-list li a:hover {
    color: var(--brand-primary);
}

.related-list li a:hover .related-title {
    color: var(--brand-primary);
}

.related-date {
    flex-shrink: 0;
    font-size: 12px;
    color: var(--text-tertiary);
    padding: 2px 8px;
    background: rgba(255,255,255,0.03);
    border-radius: var(--radius-sm);
    margin-top: 1px;
}

.related-title {
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 侧边栏联系信息 */
.sidebar-contact p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sidebar-contact svg {
    color: var(--brand-primary);
    flex-shrink: 0;
}

/* ---------- 响应式 ---------- */
@media (max-width: 992px) {
    .news-detail-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .news-detail-sidebar {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    .sidebar-card {
        margin-bottom: 0;
    }
}

@media (max-width: 768px) {
    .news-detail-title {
        font-size: 22px;
    }
    
    .news-detail-meta {
        gap: 6px 12px;
    }
    
    .meta-dot {
        display: none;
    }
    
    .breadcrumb .current {
        max-width: 200px;
    }
    
    .news-detail-sidebar {
        grid-template-columns: 1fr;
    }
    
    .news-detail-body {
        font-size: 14px;
    }
    
    .news-detail-body h2 {
        font-size: 19px;
    }
    
    .news-detail-body h3 {
        font-size: 16px;
    }
}