/* ========================================
   美辰信息技术 - 企业官网样式
   ======================================== */

:root {
    /* 商务蓝配色 */
    --primary: #1e40af;
    --primary-light: #3b82f6;
    --primary-dark: #1e3a8a;
    --accent: #f59e0b;
    --accent-light: #fbbf24;

    /* 中性色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
}

/* 导航 */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s ease;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo img {
    height: 36px;
    width: auto;
}

.logo-text {
    display: none;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.nav-links a:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.nav-links a.active {
    color: var(--primary);
}

.nav-cta {
    background: var(--primary) !important;
    color: #ffffff !important;
}

.nav-cta:hover {
    background: var(--primary-dark) !important;
}

.nav-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 16px;
    background: rgba(30, 64, 175, 0.06);
    border: 1px solid rgba(30, 64, 175, 0.12);
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.nav-phone:hover {
    background: rgba(30, 64, 175, 0.1);
}

.nav-phone svg {
    width: 16px;
    height: 16px;
}

/* Hero */
.hero {
    padding: 140px 0 100px;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(30, 64, 175, 0.06);
    border: 1px solid rgba(30, 64, 175, 0.12);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 24px;
}

.hero-badge-dot {
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.03em;
    color: var(--text-primary);
}

.hero-title .highlight {
    color: var(--primary);
}

.hero-desc {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 480px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

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

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

.btn svg {
    width: 16px;
    height: 16px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

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

.stat-value {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    font-family: 'Inter', sans-serif;
}

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

/* Hero 右侧图形 */
.hero-visual {
    position: relative;
}

.hero-graphic {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    max-width: 420px;
    margin: 0 auto;
}

.graphic-main {
    position: absolute;
    inset: 10%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 25px 50px -12px rgba(30, 64, 175, 0.25);
}

.graphic-main svg {
    width: 60%;
    height: 60%;
    color: #ffffff;
    opacity: 0.9;
}

.graphic-float {
    position: absolute;
    background: var(--bg-primary);
    border-radius: 16px;
    padding: 16px 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--border-light);
}

.graphic-float-1 {
    top: 5%;
    right: -10%;
}

.graphic-float-2 {
    bottom: 15%;
    left: -5%;
}

.graphic-float-icon {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.graphic-float-icon svg {
    width: 20px;
    height: 20px;
    color: var(--primary);
}

.graphic-float-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.graphic-float-sub {
    font-size: 11px;
    color: var(--text-tertiary);
    font-weight: 400;
}

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

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

.section-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.section-label::before,
.section-label::after {
    content: '';
    width: 20px;
    height: 1px;
    background: var(--primary);
    opacity: 0.4;
}

.section-title {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
}

/* 服务 */
.services-bg {
    background: var(--bg-secondary);
}

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

.service-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s ease;
}

.service-card:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 40px rgba(30, 64, 175, 0.08);
    transform: translateY(-4px);
}

.service-icon {
    width: 52px;
    height: 52px;
    background: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary);
}

.service-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.service-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 数据条 */
.stats-bar {
    background: var(--primary);
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.stats-item {
    text-align: center;
}

.stats-value {
    font-size: 44px;
    font-weight: 800;
    color: #ffffff;
    line-height: 1;
    font-family: 'Inter', sans-serif;
}

.stats-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 8px;
}

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

.case-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.case-card:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 40px rgba(30, 64, 175, 0.08);
    transform: translateY(-4px);
}

.case-visual {
    height: 160px;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.case-visual svg {
    width: 48px;
    height: 48px;
    color: var(--primary);
    opacity: 0.6;
}

.case-body {
    padding: 24px;
}

.case-tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(30, 64, 175, 0.06);
    border: 1px solid rgba(30, 64, 175, 0.1);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 12px;
}

.case-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.case-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 区域 */
.regions-bg {
    background: var(--bg-secondary);
}

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

.region-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.2s ease;
}

.region-card:hover {
    border-color: var(--primary);
}

.region-icon {
    width: 44px;
    height: 44px;
    background: var(--bg-secondary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.region-icon svg {
    width: 20px;
    height: 20px;
    color: var(--primary);
}

.region-info {
    flex: 1;
}

.region-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.region-tag {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* CTA */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.cta-content {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
}

.cta-title {
    font-size: 36px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.cta-desc {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
}

.cta-phone {
    font-size: 48px;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 28px;
    letter-spacing: -0.02em;
    font-family: 'Inter', sans-serif;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: #ffffff;
    color: var(--primary);
    font-size: 15px;
    font-weight: 700;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cta-btn svg {
    width: 18px;
    height: 18px;
}

/* 页脚 */
.footer {
    background: var(--text-primary);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    max-width: 280px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 36px;
    width: auto;
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 8px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.footer-social a:hover {
    background: rgba(255, 255, 255, 0.15);
}

.footer-social svg {
    width: 16px;
    height: 16px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-col h4 {
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

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

.footer-col a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: #ffffff;
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copy {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: #ffffff;
}

.footer-icp {
    width: 100%;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 12px;
    color: rgba(255, 255, 255, 0.3);
    text-align: center;
}

.footer-icp a {
    color: inherit;
    text-decoration: none;
}

/* 移动端 */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    margin: 5px 0;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    padding: 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    display: block;
    color: var(--text-secondary);
    padding: 14px 0;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-bottom: 1px solid var(--border-light);
}

.mobile-menu a:last-child {
    border-bottom: none;
    color: var(--primary);
}

/* ========================================
   新闻列表页样式
   ======================================== */

.news-page {
    padding: 120px 0 80px;
    min-height: 100vh;
}

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

.news-breadcrumb {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-tertiary);
    margin-bottom: 16px;
}

.news-breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

.news-breadcrumb svg {
    width: 14px;
    height: 14px;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.news-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    text-decoration: none;
    display: block;
}

.news-card:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 40px rgba(30, 64, 175, 0.08);
    transform: translateY(-4px);
}

.news-card-image {
    height: 200px;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.news-card-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    opacity: 0.1;
}

.news-card-image svg {
    width: 48px;
    height: 48px;
    color: var(--primary);
    opacity: 0.4;
}

.news-card-date {
    position: absolute;
    bottom: 12px;
    left: 12px;
    background: var(--bg-primary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.news-card-body {
    padding: 24px;
}

.news-card-category {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(30, 64, 175, 0.06);
    border: 1px solid rgba(30, 64, 175, 0.1);
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 12px;
}

.news-card-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-card-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    margin-top: 16px;
    border-top: 1px solid var(--border-light);
}

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

.news-card-views {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: var(--text-tertiary);
}

.news-card-views svg {
    width: 14px;
    height: 14px;
}

.news-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 60px;
}

.news-pagination a {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
}

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

.news-pagination a.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #ffffff;
}

.news-pagination a.disabled {
    opacity: 0.4;
    pointer-events: none;
}

.news-pagination svg {
    width: 16px;
    height: 16px;
}

/* ========================================
   新闻内容页样式
   ======================================== */

.article-page {
    padding: 120px 0 80px;
    min-height: 100vh;
}

.article-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 48px;
}

.article-main {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
}

.article-header {
    padding: 40px;
    border-bottom: 1px solid var(--border-light);
}

.article-category {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(30, 64, 175, 0.06);
    border: 1px solid rgba(30, 64, 175, 0.1);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 16px;
}

.article-title {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 24px;
    font-size: 13px;
    color: var(--text-tertiary);
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-meta-item svg {
    width: 14px;
    height: 14px;
}

.article-cover {
    height: 400px;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
    display: flex;
    align-items: center;
    justify-content: center;
}

.article-cover svg {
    width: 80px;
    height: 80px;
    color: var(--primary);
    opacity: 0.3;
}

.article-content {
    padding: 40px;
    font-size: 16px;
    line-height: 1.9;
    color: var(--text-secondary);
}

.article-content h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 40px 0 16px;
}

.article-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 32px 0 12px;
}

.article-content p {
    margin-bottom: 20px;
}

.article-content ul,
.article-content ol {
    margin: 20px 0;
    padding-left: 24px;
}

.article-content li {
    margin-bottom: 8px;
}

.article-content code {
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 14px;
}

.article-content pre {
    background: var(--text-primary);
    color: #ffffff;
    padding: 24px;
    border-radius: 12px;
    overflow-x: auto;
    margin: 24px 0;
}

.article-content pre code {
    background: none;
    padding: 0;
    color: inherit;
}

.article-content blockquote {
    border-left: 4px solid var(--primary);
    padding: 16px 24px;
    background: var(--bg-secondary);
    margin: 24px 0;
    border-radius: 0 12px 12px 0;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}

.article-tag {
    padding: 6px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
}

.article-tag:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.article-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--border-light);
}

.article-nav-item {
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.article-nav-item:hover {
    background: var(--bg-tertiary);
}

.article-nav-label {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.article-nav-label svg {
    width: 12px;
    height: 12px;
}

.article-nav-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

/* 侧边栏 */
.article-sidebar {
    position: sticky;
    top: 96px;
    height: fit-content;
}

.sidebar-widget {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
}

.sidebar-widget-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary);
}

.sidebar-related-list {
    list-style: none;
}

.sidebar-related-item {
    padding: 16px 0;
    border-bottom: 1px solid var(--border-light);
}

.sidebar-related-item:last-child {
    border-bottom: none;
}

.sidebar-related-item a {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    line-height: 1.5;
    margin-bottom: 6px;
    transition: color 0.2s ease;
}

.sidebar-related-item a:hover {
    color: var(--primary);
}

.sidebar-related-date {
    font-size: 12px;
    color: var(--text-tertiary);
}

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

.sidebar-tags .article-tag {
    font-size: 13px;
    padding: 8px 14px;
}

.sidebar-contact {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #ffffff;
    text-align: center;
}

.sidebar-contact-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.sidebar-contact-desc {
    font-size: 13px;
    opacity: 0.8;
    margin-bottom: 16px;
}

.sidebar-contact-phone {
    font-size: 24px;
    font-weight: 800;
    font-family: 'Inter', sans-serif;
    margin-bottom: 16px;
}

.sidebar-contact .btn {
    width: 100%;
    background: #ffffff;
    color: var(--primary);
}

/* ========================================
   响应式
   ======================================== */

@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 60px;
    }

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

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

    .hero-visual {
        order: -1;
    }

    .services-grid,
    .cases-grid,
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .article-layout {
        grid-template-columns: 1fr;
    }

    .article-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-phone {
        display: none;
    }

    .mobile-toggle {
        display: block;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .section {
        padding: 70px 0;
    }

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

    .services-grid,
    .cases-grid,
    .stats-grid,
    .regions-grid,
    .news-grid {
        grid-template-columns: 1fr;
    }

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

    .cta-phone {
        font-size: 36px;
    }

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .article-header {
        padding: 24px;
    }

    .article-title {
        font-size: 22px;
    }

    .article-meta {
        flex-wrap: wrap;
        gap: 12px;
    }

    .article-content {
        padding: 24px;
        font-size: 15px;
    }

    .article-nav {
        grid-template-columns: 1fr;
    }
}