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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
    line-height: 1.8;
    color: #333;
    background-color: #fff;
}

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

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #ee7516;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #ee7516;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

.hero {
    margin-top: 70px;
    background: linear-gradient(135deg, #ee7516 0%, #f59e0b 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: white;
    padding: 40px 20px 60px;
}

.hero-image {
    width: 100%;
    max-width: 1000px;
    margin-bottom: 40px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 14px 36px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background: white;
    color: #667eea;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background: transparent;
    border: 2px solid white;
    color: white;
}

.btn-secondary:hover {
    background: white;
    color: #667eea;
}

.btn-large {
    padding: 18px 48px;
    font-size: 18px;
}

.btn-platform {
    background: white;
    color: #ee7516;
    border: 2px solid #ee7516;
}

.btn-platform:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(238, 117, 22, 0.2);
    background: #fef6e4;
}

.section {
    padding: 80px 0;
}

.section-alt {
    background: #f8f9fa;
}

.section-title {
    font-size: 36px;
    text-align: center;
    margin-bottom: 60px;
    color: #ee7516;
}

.about-content .intro {
    font-size: 18px;
    text-align: center;
    margin-bottom: 50px;
    color: #555;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.stat-card {
    background: white;
    padding: 40px 20px;
    text-align: center;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.stat-number {
    font-size: 36px;
    font-weight: bold;
    color: #ee7516;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    color: #666;
}

.two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.column h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: #ee7516;
}

.column ul {
    margin-left: 20px;
    color: #555;
}

.column li {
    margin-bottom: 12px;
}

.qualifications li {
    list-style: none;
    margin-left: 0;
    padding-left: 24px;
    position: relative;
}

.qualifications li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #ee7516;
    font-weight: bold;
}

.brand-position {
    background: linear-gradient(135deg, #ee7516 0%, #f59e0b 100%);
    color: white;
    padding: 40px;
    border-radius: 12px;
    margin-top: 40px;
}

.brand-position h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.brand-position p {
    font-size: 17px;
    line-height: 1.9;
}

/* 项目实景图片展示 */
.gallery-section {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.gallery-title {
    font-size: 36px;
    text-align: center;
    margin-bottom: 60px;
    color: #ee7516;
    font-weight: bold;
}

.gallery-main {
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    grid-template-rows: 1fr 1fr !important;
    gap: 20px !important;
    height: 500px !important;
    border: none !important;
    outline: none !important;
}

.gallery-featured {
    grid-column: 1 !important;
    grid-row: 1 / 3 !important;
    position: relative !important;
    height: 100% !important;
    border: none !important;
    outline: none !important;
}

.gallery-thumbnails {
    grid-column: 2 !important;
    grid-row: 1 / 3 !important;
    display: grid !important;
    grid-template-columns: 1fr 1fr !important;
    grid-template-rows: 1fr 1fr !important;
    gap: 15px !important;
    height: 100% !important;
    border: none !important;
    outline: none !important;
}

.gallery-featured img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: none;
    outline: none;
    display: block;
}

.gallery-featured-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(238, 117, 22, 0.6);
    color: white;
    padding: 10px;
    text-align: center;
    font-size: 16px;
    font-weight: 700;
}

.gallery-thumbnail-item {
    position: relative;
    height: 100%;
    border: none !important;
    outline: none !important;
}

.gallery-thumbnail-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: none;
    outline: none;
    display: block;
}

.gallery-thumbnail-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(238, 117, 22, 0.6);
    color: white;
    padding: 6px;
    text-align: center;
    font-size: 12px;
    font-weight: 600;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .gallery-main {
        display: block !important;
        padding: 0 !important;
        height: auto !important;
    }
    
    .gallery-featured {
        width: 100% !important;
        margin: 0 0 15px 0 !important;
        height: 250px !important;
        display: block !important;
    }
    
    .gallery-thumbnails {
        width: 100% !important;
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        grid-template-rows: 1fr 1fr !important;
        gap: 10px !important;
        height: auto !important;
    }
    
    .gallery-thumbnail-item {
        display: block !important;
        width: 100% !important;
        height: 120px !important;
        padding: 0 !important;
    }
    
    .gallery-thumbnail-item img {
        height: 100% !important;
        width: 100% !important;
        display: block !important;
        border: none !important;
        outline: none !important;
    }
    
    .gallery-featured img {
        height: 250px !important;
        width: 100% !important;
        display: block !important;
        border: none !important;
        outline: none !important;
    }
}

@media (max-width: 480px) {
    .gallery-thumbnail-item {
        height: 80px !important;
    }
}



.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.service-card {
    background: white;
    padding: 0 30px 40px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-line {
    height: 6px;
    margin-bottom: 30px;
}

.line-green {
    background: linear-gradient(90deg, #2d7d46, #4ade80);
}

.line-purple {
    background: linear-gradient(90deg, #764ba2, #667eea);
}

.line-blue {
    background: linear-gradient(90deg, #3b82f6, #60a5fa);
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 16px;
    color: #ee7516;
}

.service-card p {
    color: #666;
}

.platform-box {
    background: linear-gradient(135deg, #ee7516 0%, #f59e0b 100%);
    padding: 80px 40px;
    border-radius: 16px;
    text-align: center;
    color: white;
}

.platform-content h3 {
    font-size: 32px;
    margin-bottom: 16px;
}

.platform-content p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.contact-icon {
    font-size: 48px;
    flex-shrink: 0;
}

.contact-text h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: #ee7516;
}

.contact-text p {
    color: #666;
    font-size: 16px;
}

.phone-link {
    color: #ee7516;
    text-decoration: none;
    font-weight: 600;
    font-size: 20px;
    transition: color 0.3s;
}

.phone-link:hover {
    color: #667eea;
}

.footer {
    background: #1a1a2e;
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    text-align: center;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 20px;
}

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

.footer-icp a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
}

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

@media (max-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 30px;
        gap: 20px;
        transition: left 0.3s;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero {
        padding: 30px 15px 40px;
    }
    
    .hero-image {
        margin-bottom: 30px;
    }
    
    .hero-content h1 {
        font-size: 32px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .two-columns {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-content h1 {
        font-size: 26px;
    }
    
    .btn {
        padding: 12px 28px;
    }
}