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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(249, 115, 22, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    width: 100%;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 2rem;
    font-weight: 600;
    color: #ea580c;
}

.nav-logo i {
    font-size: 2.3rem;
    margin-right: 10px;
    color: #f97316;
}

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

.nav-menu li {
    margin-left: 1.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: #374151;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    position: relative;
    white-space: nowrap;
}

.nav-menu a:hover {
    color: #f97316;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: #f97316;
    transition: width 0.3s ease;
}

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

.nav-cta {
    background: linear-gradient(135deg, #f97316, #ea580c);
    color: white !important;
    padding: 10px 20px;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(249, 115, 22, 0.3);
}

.nav-cta::after {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #374151;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主页横幅 */
.hero {
    background: 
        linear-gradient(135deg, rgba(240, 249, 255, 0.9) 0%, rgba(224, 242, 254, 0.9) 50%, rgba(240, 249, 255, 0.9) 100%),
        url('images/hero-bg.jpg') center/cover no-repeat;
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23f97316" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>') repeat;
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #1e293b;
}

.highlight {
    background: linear-gradient(135deg, #f97316, #ea580c);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #64748b;
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-features {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #475569;
    font-weight: 500;
}

.feature-item i {
    color: #f97316;
    font-size: 1.2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-primary {
    background: linear-gradient(135deg, #f97316, #ea580c);
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(249, 115, 22, 0.4);
}

.btn-secondary {
    background: white;
    color: #f97316;
    padding: 15px 30px;
    border: 2px solid #f97316;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: #f97316;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(249, 115, 22, 0.3);
}

/* 主页图片展示 */
.hero-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 2rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.hero-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.hero-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.hero-leadership {
    margin-top: 1.5rem;
    text-align: center;
}

.hero-leadership img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-leadership img:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.hero-image:hover img {
    transform: scale(1.02);
}

.hero-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(249, 115, 22, 0.3), rgba(234, 88, 12, 0.3));
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
}

.safety-stats {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.stat-badge {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: 0.8rem 1.2rem;
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: #f97316;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.stat-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.stat-badge i {
    font-size: 1.1rem;
    color: #f97316;
}

/* 仪表板预览 */
.dashboard-preview {
    background: white;
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

.dashboard-preview:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.dashboard-header {
    background: linear-gradient(135deg, #ea580c, #f97316);
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dashboard-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.dashboard-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-dot.green {
    background: #10b981;
}

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

.dashboard-content {
    padding: 30px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.metric-card {
    text-align: center;
    padding: 20px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: #ea580c;
    margin-bottom: 5px;
}

.metric-label {
    color: #64748b;
    font-size: 0.9rem;
}

/* 通用区块样式 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

/* 产品特色 */
.features {
    padding: 100px 0;
    background: white;
}

/* 产品展示图片 */
.product-showcase {
    margin-bottom: 4rem;
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* 项目案例展示 */
.project-showcase {
    margin: 3rem 0;
    text-align: center;
}

.project-showcase h3 {
    font-size: 2rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 2rem;
}

.function-architecture {
    text-align: center;
    margin: 2rem 0;
}

.function-architecture img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.functions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    height: 220px;
    background: white;
}

.project-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.project-item img {
    width: 100%;
    height: 70%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-item:hover img {
    transform: scale(1.05);
}

.project-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #f97316, #ea580c);
    color: white;
    padding: 1rem;
    text-align: left;
}

.project-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: white;
}

.project-info p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin: 0;
}

.showcase-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    height: 280px;
}

.showcase-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

.showcase-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.showcase-item:hover img {
    transform: scale(1.05);
}

.showcase-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 2rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.showcase-item:hover .showcase-overlay {
    transform: translateY(0);
}

.showcase-overlay h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: white;
}

.showcase-overlay p {
    font-size: 0.95rem;
    opacity: 0.9;
    line-height: 1.5;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #f97316, #ea580c);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    font-size: 1.8rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.feature-card ul {
    list-style: none;
}

.feature-card li {
    margin-bottom: 0.8rem;
    color: #64748b;
    line-height: 1.6;
}

.feature-card strong {
    color: #f97316;
    font-weight: 600;
}

/* 核心功能 */
.functions {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.functions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.function-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.function-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.function-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #f97316, #ea580c);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.function-icon i {
    font-size: 1.5rem;
    color: white;
}

.function-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.function-item p {
    color: #64748b;
    font-size: 0.95rem;
}

/* 技术优势 */
.technology {
    padding: 100px 0;
    background: white;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.tech-category {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid #e2e8f0;
}

.tech-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tech-category h3 i {
    color: #f97316;
    font-size: 1.3rem;
}

.tech-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.tech-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.tech-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.tech-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.5rem;
}

.tech-item p {
    color: #64748b;
    font-size: 0.9rem;
}

/* AI安全盒 */
.ai-box {
    padding: 100px 0;
    background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
    color: white;
}

.ai-box-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.ai-box h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.ai-box-subtitle {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.ai-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.ai-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.ai-feature i {
    color: #fb923c;
    font-size: 1.1rem;
}

.ai-box-visual {
    position: relative;
}

.ai-box-product {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 2rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.ai-box-product:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.ai-box-product img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.ai-box-product:hover img {
    transform: scale(1.05);
}

.product-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 1.5rem;
    color: white;
}

.product-overlay h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.product-overlay p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.ai-detection-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 500px;
}

.detection-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    height: 180px;
}

.detection-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.detection-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.detection-item:hover img {
    transform: scale(1.05);
}

.detection-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(249, 115, 22, 0.9));
    color: white;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.detection-label i {
    font-size: 1.1rem;
    color: #fff;
}

.ai-box-demo {
    background: #1e293b;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.camera-feed {
    height: 250px;
    background: linear-gradient(45deg, #374151, #4b5563);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9ca3af;
    font-size: 0.9rem;
}

.camera-feed::before {
    content: '摄像头监控画面';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.detection-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.detection-box {
    position: absolute;
    border: 2px solid #ef4444;
    background: rgba(239, 68, 68, 0.1);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.8rem;
    color: #ef4444;
    font-weight: 600;
}

.detection-box.safety-helmet {
    top: 20px;
    left: 20px;
    width: 100px;
    height: 60px;
}

.detection-box.area-intrusion {
    bottom: 20px;
    right: 20px;
    width: 80px;
    height: 50px;
}

.alert-panel {
    background: #1f2937;
    padding: 15px;
    border-top: 1px solid #374151;
}

.alert-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fbbf24;
    font-size: 0.9rem;
}

.alert-item i {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

/* 关于我们 */
.company {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.company-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
}

.stat-item {
    text-align: center;
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #f97316;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #64748b;
    font-weight: 500;
}

.company-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.company-desc h3,
.company-services h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.company-desc p {
    color: #64748b;
    margin-bottom: 1rem;
    line-height: 1.7;
}

.service-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.service-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.service-item i {
    color: #f97316;
    font-size: 1.2rem;
    margin-top: 0.2rem;
}

.service-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0.3rem;
}

.service-item p {
    color: #64748b;
    font-size: 0.9rem;
}

/* 联系我们 */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #ea580c 0%, #f97316 100%);
    color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.leadership-assurance {
    text-align: center;
    margin: 2rem 0;
}

.leadership-assurance img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-item i {
    color: #fed7aa;
    font-size: 1.2rem;
    margin-top: 0.2rem;
}

.contact-item h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.contact-item p {
    opacity: 0.9;
    font-size: 0.95rem;
}

.contact-form {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #fed7aa;
    background: rgba(255, 255, 255, 0.2);
}

.contact-form .btn-primary {
    width: 100%;
    background: white;
    color: #ea580c;
    font-weight: 600;
}

.contact-form .btn-primary:hover {
    background: #f8fafc;
    transform: translateY(-2px);
}

/* 页脚 */
.footer {
    background: #1e293b;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 1.5rem;
    margin-right: 10px;
    color: #f97316;
}

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #f1f5f9;
}

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

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #f97316;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #94a3b8;
}

.copyright-info {
    flex: 1;
}

.copyright-info p {
    margin: 0.25rem 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

.footer-brand {
    flex-shrink: 0;
}

.footer-brand img {
    height: 28px;
    width: auto;
}

/* 无人机巡航与应急广播系统样式 */
.drone-system {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.drone-content {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.broadcast-system {
    padding: 80px 0;
    background: linear-gradient(135deg, #e2e8f0 0%, #f8fafc 100%);
}

.broadcast-content {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.feature-module {
    display: flex;
    align-items: center;
    gap: 40px;
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-module:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-module:nth-child(even) {
    flex-direction: row-reverse;
}

.module-info {
    flex: 1;
    padding: 20px;
}

.module-info h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.module-info h3 i {
    color: #3498db;
    font-size: 32px;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 25px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #f56c14;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: #e3f2fd;
    transform: translateX(5px);
}

.feature-item i {
    color: #f56c14;
    font-size: 16px;
    width: 20px;
}

.feature-item span {
    font-weight: 500;
    color: #2c3e50;
}

.module-description {
    font-size: 16px;
    line-height: 1.6;
    color: #666;
    margin: 0;
}

.module-visual {
    flex: 1;
    padding: 20px;
}

.drone-gallery,
.broadcast-gallery {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.drone-image-main,
.drone-image-flow,
.broadcast-image-main,
.broadcast-image-control {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.drone-image-main:hover,
.drone-image-flow:hover,
.broadcast-image-main:hover,
.broadcast-image-control:hover {
    transform: scale(1.02);
}

.drone-image-main img,
.drone-image-flow img,
.broadcast-image-main img,
.broadcast-image-control img {
    width: 100%;
    height: auto;
    display: block;
}

.image-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 20px 15px 15px;
    font-weight: 500;
    font-size: 14px;
    text-align: center;
}

/* 中等屏幕优化 */
@media (max-width: 1024px) and (min-width: 769px) {
    .nav-menu li {
        margin-left: 1rem;
    }
    
    .nav-menu a {
        font-size: 0.85rem;
    }
    
    .nav-logo {
        font-size: 1.6rem;
    }
    
    .nav-logo i {
        font-size: 1.8rem;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero {
        background: 
            linear-gradient(135deg, rgba(240, 249, 255, 0.95) 0%, rgba(224, 242, 254, 0.95) 50%, rgba(240, 249, 255, 0.95) 100%),
            url('https://images.unsplash.com/photo-1581094794329-c8112a89af12?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=1080&q=80') center/cover no-repeat;
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 1rem 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2.2rem;
        line-height: 1.2;
        word-break: keep-all;
        overflow-wrap: break-word;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.5;
        margin: 1rem 0;
        padding: 0 10px;
        word-break: break-word;
        overflow-wrap: break-word;
    }
    
    .nav-logo span {
        font-size: 1.2rem;
        word-break: keep-all;
    }
    
    .hero-features {
        justify-content: center;
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    
    .feature-item {
        justify-content: center;
        min-width: 120px;
    }
    
    .hero-visual {
        order: 1;
        width: 90%;
    }
    
    .safety-stats {
        flex-direction: column;
        gap: 0.5rem;
        align-items: center;
    }
    
    .stat-badge {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
        white-space: nowrap;
    }
    
    .hero-image {
        margin-bottom: 1rem;
    }
    
    .hero-image img {
        height: 200px;
    }
    
    .hero-leadership {
        margin-top: 1rem;
    }
    
    .hero-leadership img {
        border-radius: 8px;
        max-width: 90%;
    }
    
    .safety-stats {
        justify-content: center;
    }
    
    .showcase-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .ai-box-product img {
        height: 200px;
    }
    
    .ai-detection-gallery {
        grid-template-columns: 1fr;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .project-gallery {
        grid-template-columns: 1fr;
    }
    
    .functions-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .ai-box-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .company-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .company-info {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding: 1.5rem 0;
    }
    
    .copyright-info p {
        font-size: 0.8rem;
        line-height: 1.4;
        margin: 0.2rem 0;
        word-break: break-word;
    }
    
    .footer-brand img {
        height: 25px;
    }
    
    .function-architecture {
        margin: 1.5rem 0;
    }
    
    .function-architecture img {
        border-radius: 8px;
    }
    
    .leadership-assurance {
        margin: 1.5rem 0;
    }
    
    .leadership-assurance img {
        border-radius: 8px;
    }
    
    .drone-system {
        padding: 40px 0;
    }
    
    .drone-content {
        gap: 40px;
    }
    
    .broadcast-system {
        padding: 40px 0;
    }
    
    .broadcast-content {
        gap: 40px;
    }
    
    .feature-module {
        flex-direction: column !important;
        gap: 30px;
        padding: 30px 20px;
    }
    
    .module-info {
        padding: 0;
        text-align: center;
    }
    
    .module-info h3 {
        font-size: 24px;
        justify-content: center;
    }
    
    .feature-list {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .feature-item {
        justify-content: center;
    }
    
    .module-visual {
        padding: 0;
    }
    
    .drone-gallery,
    .broadcast-gallery {
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
        line-height: 1.1;
    }
    
    .hero-subtitle {
        font-size: 0.85rem;
        padding: 0 5px;
        line-height: 1.4;
        width: 90%;
    }
    
    .hero-features {
        gap: 0.8rem;
    }
    
    .feature-item {
        font-size: 0.85rem;
    }
    
    .feature-item i {
        font-size: 1rem;
    }
    
    .stat-badge {
        padding: 0.5rem 0.8rem;
        font-size: 0.75rem;
    }
    
    .hero-cta {
        gap: 0.8rem;
        justify-content: center;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
        line-height: 1.2;
    }
    
    .company-stats {
        grid-template-columns: 1fr;
    }
    
    .ai-features {
        grid-template-columns: 1fr;
    }
    
    .nav-logo span {
        font-size: 1rem;
        display: none;
    }
    
    .nav-logo::after {
        content: "阿隆云";
        font-size: 1rem;
    }
    
    .copyright-info p {
        font-size: 0.65rem;
        padding: 0 10px;
    }
    
    .hero-container {
        padding: 0 10px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #f97316;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #ea580c;
}