/* ========================================
   SumGraph - 官方网站样式表
   深蓝科技风格 - 参考 sumgraph.com
   ======================================== */

/* CSS 变量定义 */
:root {
    --primary-color: #0d1b2a;
    --primary-light: #1b263b;
    --primary-dark: #0a1120;
    --accent-color: #00b4d8;
    --accent-hover: #0096c7;
    --accent-light: #90e0ef;
    --text-primary: #0d1b2a;
    --text-secondary: #415a77;
    --text-light: #778da9;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-dark: #0d1b2a;
    --border-color: #e0e1dd;
    --gradient-hero: linear-gradient(135deg, #0d1b2a 0%, #1b263b 50%, #415a77 100%);
    --gradient-accent: linear-gradient(135deg, #00b4d8 0%, #0096c7 100%);
    --shadow-sm: 0 1px 3px rgba(13, 27, 42, 0.08);
    --shadow-md: 0 4px 12px rgba(13, 27, 42, 0.1);
    --shadow-lg: 0 12px 32px rgba(13, 27, 42, 0.12);
    --shadow-xl: 0 24px 48px rgba(13, 27, 42, 0.15);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

ul {
    list-style: none;
}

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

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

.container-narrow {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   按钮样式
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 180, 216, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 1.5px solid var(--border-color);
}

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

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

.btn-white:hover {
    background: var(--bg-secondary);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 16px;
}

.btn-full {
    width: 100%;
}

/* ========================================
   导航栏
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-img {
    height: 50px !important;
    width: auto !important;
    max-height: 50px !important;
    max-width: 280px !important;
    min-width: 100px;
    display: block !important;
    object-fit: contain !important;
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    align-items: center;
    gap: 2px;
}

.logo-sum {
    color: #2563eb;
    font-weight: 800;
}

.logo-graph {
    color: #1e293b;
    font-weight: 800;
}

.logo-cn {
    color: #64748b;
    font-weight: 500;
    font-size: 16px;
    margin-left: 8px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient-accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 16px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

/* ========================================
   主页横幅 - 深蓝科技风格
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 140px 24px 100px;
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1200px;
    width: 100%;
}

.hero-content {
    color: white;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 14px;
    margin-bottom: 24px;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(40px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

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

.hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
    line-height: 1.7;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
}

.hero-dashboard {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.dashboard-header {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.dashboard-header span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dashboard-header span:nth-child(1) { background: #ff5f57; }
.dashboard-header span:nth-child(2) { background: #febc2e; }
.dashboard-header span:nth-child(3) { background: #28c840; }

.dashboard-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.dashboard-card {
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 20px;
}

.dashboard-card h4 {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dashboard-value {
    font-size: 28px;
    font-weight: 700;
    color: white;
    margin-bottom: 8px;
}

.dashboard-trend {
    font-size: 13px;
    color: var(--accent-light);
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 60px;
}

.chart-bar {
    flex: 1;
    background: var(--accent-color);
    border-radius: 3px 3px 0 0;
    opacity: 0.8;
    animation: chartGrow 2s ease-out infinite alternate;
}

.chart-bar:nth-child(1) { height: 40%; animation-delay: 0s; }
.chart-bar:nth-child(2) { height: 70%; animation-delay: 0.1s; }
.chart-bar:nth-child(3) { height: 55%; animation-delay: 0.2s; }
.chart-bar:nth-child(4) { height: 85%; animation-delay: 0.3s; }
.chart-bar:nth-child(5) { height: 60%; animation-delay: 0.4s; }
.chart-bar:nth-child(6) { height: 90%; animation-delay: 0.5s; }

@keyframes chartGrow {
    from { transform: scaleY(0.3); opacity: 0.5; }
    to { transform: scaleY(1); opacity: 0.8; }
}

.hero-stats {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 80px;
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    text-align: left;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: white;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   章节通用样式
   ======================================== */
.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(0, 180, 216, 0.1);
    color: var(--accent-color);
    font-size: 13px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 16px;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.section-desc {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   产品特色
   ======================================== */
.features {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--bg-primary);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 180, 216, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

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

.feature-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.feature-desc {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   解决方案
   ======================================== */
.solutions {
    padding: 120px 0;
    background: var(--bg-primary);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.solutions-grid.cases-six {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 992px) {
    .solutions-grid.cases-six {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .solutions-grid.cases-six {
        grid-template-columns: 1fr;
    }
}

.solution-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.solutions-grid.cases-six .solution-card {
    padding: 28px;
    text-align: center;
}

.solution-visual {
    height: 180px;
    background: var(--gradient-hero);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.solution-visual::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(0,0,0,0.2) 100%);
}

.solution-icon {
    width: 64px;
    height: 64px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.solution-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.solution-icon-small {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-color), #6366f1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.solution-icon-small svg {
    width: 24px;
    height: 24px;
    color: white;
}

.solution-content {
    padding: 28px;
}

.solutions-grid.cases-six .solution-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.solutions-grid.cases-six .solution-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0 0 12px;
}

.solution-card-meta {
    font-size: 12px;
    color: var(--text-muted);
}

.solution-card-meta .client {
    background: var(--bg-primary);
    padding: 4px 12px;
    border-radius: var(--radius-sm);
}

.solution-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--primary-color);
}

.solution-content p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.solution-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

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

.solution-features li::before {
    content: '✓';
    width: 18px;
    height: 18px;
    background: rgba(0, 180, 216, 0.1);
    color: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    flex-shrink: 0;
}

/* ========================================
   核心优势
   ======================================== */
.advantages {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.advantage-item {
    background: var(--bg-primary);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
}

.advantage-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.advantage-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--accent-color), #6366f1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.advantage-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.advantage-item h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 28px;
}

.advantage-item p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   客户案例
   ======================================== */
.cases {
    padding: 120px 0;
    background: var(--bg-primary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
    margin-bottom: 64px;
}

.case-card {
    background: var(--bg-secondary);
    padding: 32px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.case-logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.case-logo-icon {
    width: 40px;
    height: 40px;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.case-quote {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.case-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.case-avatar {
    width: 44px;
    height: 44px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 16px;
}

.case-author-info {
    display: flex;
    flex-direction: column;
}

.case-author-info .name {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 15px;
}

.case-author-info .title {
    font-size: 14px;
    color: var(--text-light);
}

.clients-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
    padding-top: 48px;
    border-top: 1px solid var(--border-color);
}

.client-logo {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-light);
    opacity: 0.6;
    transition: var(--transition);
}

.client-logo:hover {
    opacity: 1;
    color: var(--primary-color);
}

/* ========================================
   最新动态
   ======================================== */
.news {
    padding: 120px 0;
    background: var(--bg-primary);
}

.news-list {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

@media (max-width: 768px) {
    .news-list {
        grid-template-columns: 1fr;
    }
}

.news-item {
    display: flex;
    gap: 24px;
    padding: 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.news-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.news-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.news-date .day {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.news-date .month {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 4px;
}

.news-content {
    flex: 1;
}

.news-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.5;
}

.news-content h3 a {
    color: var(--primary-color);
}

.news-content h3 a:hover {
    color: var(--accent-color);
}

.news-content p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.news-more {
    text-align: center;
    margin-top: 48px;
}

/* ========================================
   新闻列表页
   ======================================== */
.page-header {
    padding: 160px 0 80px;
    background: var(--bg-secondary);
    text-align: center;
}

.page-header h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 18px;
    color: var(--text-secondary);
}

.news-page {
    padding: 80px 0;
    background: var(--bg-primary);
}

.news-list-full {
    display: flex;
    flex-direction: column;
    gap: 32px;
    margin-bottom: 48px;
}

.news-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
    padding: 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

@media (max-width: 768px) {
    .news-card {
        grid-template-columns: 1fr;
    }
}

.news-card-image {
    height: 180px;
    background: linear-gradient(135deg, var(--accent-color), #6366f1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.news-card-placeholder {
    font-size: 48px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.3);
}

.news-card-content {
    display: flex;
    flex-direction: column;
}

.news-card-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    font-size: 14px;
}

.news-card-date {
    color: var(--text-light);
}

.news-card-category {
    color: var(--accent-color);
    font-weight: 500;
}

.news-card-content h2 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-card-content h2 a {
    color: var(--primary-color);
}

.news-card-content h2 a:hover {
    color: var(--accent-color);
}

.news-card-content p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}

.news-card-link {
    color: var(--accent-color);
    font-weight: 500;
    font-size: 15px;
}

.news-card-link:hover {
    text-decoration: underline;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.page-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.page-btn:hover,
.page-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

.page-next {
    padding: 0 20px;
}

.page-ellipsis {
    color: var(--text-light);
}

/* ========================================
   新闻详情页
   ======================================== */
.article-header {
    padding: 160px 0 60px;
    background: var(--bg-secondary);
}

.article-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    font-size: 14px;
}

.article-category {
    color: var(--accent-color);
    font-weight: 500;
}

.article-date {
    color: var(--text-light);
}

.article-header h1 {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.4;
    max-width: 800px;
}

.article-content {
    padding: 60px 0;
    background: var(--bg-primary);
}

.article-body {
    max-width: 800px;
    margin: 0 auto;
}

.article-lead {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    padding: 24px;
    background: var(--bg-secondary);
    border-left: 4px solid var(--accent-color);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-bottom: 32px;
}

.article-body p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.article-body h2 {
    font-size: 24px;
    font-weight: 600;
    margin: 40px 0 20px;
    color: var(--primary-color);
}

.article-body ul {
    margin-bottom: 20px;
    padding-left: 24px;
}

.article-body li {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.article-footer {
    max-width: 800px;
    margin: 48px auto 0;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--text-light);
}

.share-btn {
    padding: 6px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.share-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* 相关文章 */
.related-news {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.related-news .section-title {
    text-align: center;
    margin-bottom: 48px;
}

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

@media (max-width: 768px) {
    .related-grid {
        grid-template-columns: 1fr;
    }
}

.related-item {
    padding: 24px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.related-item:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.related-date {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 8px;
    display: block;
}

.related-item h3 {
    font-size: 16px;
    font-weight: 500;
    line-height: 1.5;
}

.related-item h3 a {
    color: var(--primary-color);
}

.related-item h3 a:hover {
    color: var(--accent-color);
}

/* ========================================
   关于我们
   ======================================== */
.about {
    padding: 120px 0;
    background: var(--bg-secondary);
}

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

.about-content p {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
}

.about-value {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.about-value-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 180, 216, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.about-value-icon svg {
    width: 20px;
    height: 20px;
    color: var(--accent-color);
}

.about-value h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.about-value p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 0;
}

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

.about-stat {
    background: var(--bg-primary);
    padding: 28px;
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--border-color);
}

.about-stat .number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 8px;
}

.about-stat .label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* ========================================
   联系我们
   ======================================== */
.contact {
    padding: 120px 0;
    background: var(--bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.contact-info > p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.contact-item-icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 180, 216, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item-icon svg {
    width: 22px;
    height: 22px;
    color: var(--accent-color);
}

.contact-item-content h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.contact-item-content p {
    font-size: 15px;
    color: var(--text-secondary);
    margin: 0;
}

.contact-form {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    font-size: 15px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
    font-family: inherit;
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-light);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* ========================================
   页脚
   ======================================== */
.footer {
    padding: 80px 0 32px;
    background: var(--bg-dark);
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 80px;
    margin-bottom: 64px;
}

.footer-brand .logo {
    margin-bottom: 20px;
    color: white;
}

.footer-brand .logo-icon {
    background: var(--accent-color);
}

.footer-brand > p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
}

.social-links svg {
    width: 20px;
    height: 20px;
}

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

.footer-column h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    color: white;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-column a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-column a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

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

.footer-legal a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-legal a:hover {
    color: white;
}

/* ========================================
   二级页面通用样式 - 无轮播图
   ======================================== */
.page-header-simple {
    padding: 120px 0 60px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.page-header-simple .section-tag {
    background: rgba(0, 180, 216, 0.1);
    color: var(--accent-color);
}

.page-header-simple .section-title {
    color: var(--primary-color);
    margin-bottom: 16px;
}

.page-header-simple .section-desc {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.page-content {
    padding: 80px 0;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    font-size: 14px;
    color: var(--text-light);
}

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

.breadcrumb-separator {
    color: var(--text-light);
}

/* 产品详情页 */
.product-detail {
    padding: 80px 0;
}

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

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

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

.product-detail-visual {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: 40px;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
}

.product-detail-content h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.product-detail-content p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--text-primary);
}

.feature-list li::before {
    content: '';
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
    background-size: 12px;
    background-position: center;
    background-repeat: no-repeat;
}

/* 案例详情 */
.case-detail {
    padding: 80px 0;
}

.case-detail-header {
    text-align: center;
    margin-bottom: 64px;
}

.case-detail-logo {
    width: 80px;
    height: 80px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

.case-detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 48px;
}

.case-detail-content h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.case-detail-content p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.case-sidebar {
    background: var(--bg-secondary);
    padding: 32px;
    border-radius: var(--radius-lg);
    height: fit-content;
    border: 1px solid var(--border-color);
}

.case-sidebar h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

.case-info-item {
    margin-bottom: 24px;
}

.case-info-item:last-child {
    margin-bottom: 0;
}

.case-info-item .label {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 6px;
}

.case-info-item .value {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-color);
}

.case-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
    padding-top: 48px;
    border-top: 1px solid var(--border-color);
}

.case-result {
    text-align: center;
}

.case-result .number {
    font-size: 36px;
    font-weight: 700;
    color: var(--accent-color);
    display: block;
    margin-bottom: 8px;
}

.case-result .label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 关于我们页面 */
.about-hero {
    padding: 140px 0 80px;
    background: var(--gradient-hero);
    color: white;
}

.about-hero-content {
    max-width: 800px;
}

.about-hero h1 {
    font-size: clamp(36px, 5vw, 48px);
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
}

.about-hero p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.team-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.team-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.team-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.team-avatar {
    height: 200px;
    background: linear-gradient(135deg, #e3e8ee 0%, #f1f5f9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
}

.team-info {
    padding: 24px;
}

.team-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.team-info .role {
    font-size: 14px;
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 12px;
}

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

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }

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

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

    .hero-stats {
        gap: 40px;
        justify-content: center;
    }

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

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .product-detail-grid,
    .case-detail-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .product-detail-grid.reverse {
        direction: ltr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .case-results {
        grid-template-columns: 1fr;
    }
}

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

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 120px 20px 60px;
    }

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

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

    .features-grid,
    .solutions-grid,
    .cases-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

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

    .page-header-simple {
        padding: 100px 0 40px;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

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

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

/* ========================================
   轮播横幅样式
   ======================================== */
.hero-carousel {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    background: var(--gradient-hero);
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 40px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.6s ease-in-out, visibility 0.6s ease-in-out;
    z-index: 1;
}

.carousel-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 2;
}

.carousel-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    max-width: 800px;
}

.carousel-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.ai-bg {
    background: radial-gradient(circle at 80% 50%, rgba(99, 102, 241, 0.3) 0%, transparent 50%);
}

.drone-bg {
    background: radial-gradient(circle at 80% 50%, rgba(34, 197, 94, 0.3) 0%, transparent 50%);
}

.data-bg {
    background: radial-gradient(circle at 80% 50%, rgba(168, 85, 247, 0.3) 0%, transparent 50%);
}

.industry-bg {
    background: radial-gradient(circle at 80% 50%, rgba(245, 158, 11, 0.3) 0%, transparent 50%);
}

.carousel-content {
    text-align: center;
    color: white;
    max-width: 800px;
}

.carousel-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 13px;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.carousel-title {
    font-size: clamp(36px, 4.5vw, 52px);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.carousel-title .highlight {
    color: var(--accent-light);
}

.carousel-desc {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 0;
    line-height: 1.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.carousel-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.carousel-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-card {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-xl);
    padding: 40px;
    text-align: center;
    min-width: 280px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.3);
}

/* AI卡片 */
.ai-icon {
    font-size: 64px;
    margin-bottom: 24px;
}

.ai-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
}

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

.ai-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--accent-light);
}

.ai-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 4px;
}

/* 无人机卡片 */
.drone-icon {
    font-size: 64px;
    margin-bottom: 24px;
}

.drone-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}

.feature-tag {
    padding: 6px 14px;
    background: rgba(34, 197, 94, 0.2);
    border: 1px solid rgba(34, 197, 94, 0.4);
    border-radius: 20px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
}

/* 数据卡片 */
.data-card {
    position: relative;
}

.data-nodes {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
}

.node {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: nodePulse 2s infinite;
}

.node-1 { top: 0; left: 50%; transform: translateX(-50%); animation-delay: 0s; }
.node-2 { top: 50%; right: 0; transform: translateY(-50%); animation-delay: 0.3s; }
.node-3 { bottom: 0; left: 50%; transform: translateX(-50%); animation-delay: 0.6s; }
.node-4 { top: 50%; left: 0; transform: translateY(-50%); animation-delay: 0.9s; }

.connection {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80px;
    height: 80px;
    border: 2px solid rgba(168, 85, 247, 0.4);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: rotateConnection 10s linear infinite;
}

@keyframes nodePulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
}

@keyframes rotateConnection {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.data-label {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
}

/* 产业卡片 */
.industry-icons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 20px;
}

.ind-icon {
    font-size: 36px;
    padding: 12px;
    background: rgba(245, 158, 11, 0.15);
    border-radius: 12px;
}

.industry-text {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
}

/* 轮播指示器 */
.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 2000;
}

.indicator {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: scale(1.2);
}

.indicator:hover {
    border-color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.4);
}

/* 轮播控制按钮 */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 20px;
    cursor: pointer;
    z-index: 2000;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.7);
}

.carousel-prev {
    left: 20px;
}

.carousel-next {
    right: 20px;
}

/* 确保轮播图内容不会遮挡按钮 */
.carousel-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.carousel-content,
.carousel-visual {
    position: relative;
    z-index: 1;
}

/* 响应式 */
@media (max-width: 1024px) {
    .carousel-container {
        height: 450px;
        min-height: 450px;
    }

    .carousel-slide {
        padding: 80px 40px;
    }

    .carousel-content {
        max-width: 100%;
    }

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

@media (max-width: 768px) {
    .carousel-container {
        height: 400px;
        min-height: 400px;
    }

    .carousel-slide {
        padding: 60px 20px;
    }

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

    .carousel-desc {
        font-size: 14px;
    }
}