:root{--primary-color:#1a5fb4;--primary-dark:#0d3a6e;--primary-light:#3584e4;--secondary-color:#e66100;--accent-color:#26a269;--text-dark:#1c1c1c;--text-light:#5e5e5e;--text-muted:#8c8c8c;--bg-light:#f6f6f6;--bg-white:#ffffff;--border-color:#deddda;--shadow:0 2px 8px rgba(0,0,0,0.1);--shadow-lg:0 8px 24px rgba(0,0,0,0.12);--radius:8px;--radius-lg:16px;--transition:all 0.3s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;font-size:16px;line-height:1.6;color:var(--text-dark);background-color:var(--bg-white)}.container{max-width:1200px;margin:0 auto;padding:0 20px}a{text-decoration:none;color:inherit;transition:var(--transition)}img{max-width:100%;height:auto}.top-bar{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary-color) 100%);color:white;padding:10px 0;font-size:14px}.top-bar .container{display:flex;justify-content:space-between;align-items:center}.top-info span{margin-right:24px}.top-info i{margin-right:6px;color:var(--secondary-color)}.top-links{display:flex;align-items:center;gap:6px}.top-links a{padding:4px 10px;font-size:12px;border-radius:4px;text-decoration:none;color:rgba(255,255,255,0.7);border:1px solid transparent;transition:all 0.3s}.top-links a:hover{color:#fff;background:rgba(255,255,255,0.1)}.top-links a.active{color:#fff;background:rgba(255,255,255,0.2);border-color:rgba(255,255,255,0.4);font-weight:500}.main-header{background:var(--bg-white);box-shadow:var(--shadow);position:sticky;top:0;z-index:1000}.main-header .container{display:flex;justify-content:space-between;align-items:center;height:80px}.logo{display:flex;align-items:center;gap:12px}.logo img{height:50px;width:auto}.logo-text h1{font-size:22px;font-weight:700;color:var(--primary-color);line-height:1.2}.logo-text span{font-size:11px;color:var(--text-muted);letter-spacing:1px}.main-nav ul{display:flex;list-style:none;gap:32px}.main-nav a{font-size:15px;font-weight:500;color:var(--text-dark);position:relative;padding:8px 0}.main-nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--primary-color);transition:var(--transition)}.main-nav a:hover,.main-nav a.active{color:var(--primary-color)}.main-nav a:hover::after,.main-nav a.active::after{width:100%}.mobile-menu-btn{display:none;font-size:24px;cursor:pointer;color:var(--primary-color)}.hero-slider{position:relative;height:600px;overflow:hidden}.slide{position:absolute;top:0;left:0;width:100%;height:100%;background-size:cover;background-position:center;opacity:0;transition:opacity 0.8s ease;display:flex;align-items:center}.slide::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(90deg,rgba(0,0,0,0.7) 0%,rgba(0,0,0,0.3) 50%,transparent 100%)}.slide.active{opacity:1}.slide-content{position:relative;z-index:2;max-width:600px;padding:0 60px;color:white}.slide-content h2{font-size:48px;font-weight:700;margin-bottom:20px;text-shadow:2px 2px 4px rgba(0,0,0,0.3);animation:slideInLeft 0.8s ease}.slide-content p{font-size:20px;margin-bottom:32px;opacity:0.95;animation:slideInLeft 0.8s ease 0.2s both}.slider-dots{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);display:flex;gap:12px;z-index:10}.dot{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,0.4);cursor:pointer;transition:var(--transition)}.dot.active{background:white;width:32px;border-radius:6px}.slider-arrows{position:absolute;top:50%;transform:translateY(-50%);width:100%;display:flex;justify-content:space-between;padding:0 20px;z-index:10}.slider-arrows span{width:50px;height:50px;background:rgba(255,255,255,0.2);border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;font-size:20px;cursor:pointer;transition:var(--transition)}.slider-arrows span:hover{background:rgba(255,255,255,0.4)}.btn-primary{display:inline-block;padding:14px 36px;background:var(--secondary-color);color:white;font-size:16px;font-weight:600;border-radius:var(--radius);transition:var(--transition);animation:slideInLeft 0.8s ease 0.4s both}.btn-primary:hover{background:#d45500;transform:translateY(-2px);box-shadow:0 4px 12px rgba(230,97,0,0.3)}.btn-secondary{display:inline-block;padding:12px 32px;background:transparent;color:var(--primary-color);font-size:15px;font-weight:600;border:2px solid var(--primary-color);border-radius:var(--radius);transition:var(--transition)}.btn-secondary:hover{background:var(--primary-color);color:white}section{padding:80px 0}.section-header{text-align:center;margin-bottom:60px}.section-header h2{font-size:36px;font-weight:700;color:var(--text-dark);margin-bottom:12px;position:relative;display:inline-block}.section-header h2::after{content:'';position:absolute;bottom:-12px;left:50%;transform:translateX(-50%);width:60px;height:4px;background:var(--secondary-color);border-radius:2px}.section-header p{font-size:18px;color:var(--text-light);margin-top:24px}.section-header.light h2,.section-header.light p{color:white}.text-center{text-align:center;margin-top:40px}.services-section{background:var(--bg-light)}.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.service-card{background:white;padding:40px 30px;border-radius:var(--radius-lg);box-shadow:var(--shadow);transition:var(--transition);text-align:center}.service-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}.service-icon{width:80px;height:80px;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-light) 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 24px;font-size:32px;color:white}.service-card h3{font-size:22px;font-weight:600;margin-bottom:16px;color:var(--text-dark)}.service-card p{font-size:15px;color:var(--text-light);line-height:1.7;margin-bottom:20px}.read-more{color:var(--primary-color);font-weight:600;font-size:14px}.read-more i{margin-left:4px;transition:var(--transition)}.read-more:hover i{transform:translateX(4px)}.advantages-section{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary-color) 100%);color:white}.advantages-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px}.advantage-item{text-align:center;padding:30px}.advantage-number{font-size:56px;font-weight:700;color:var(--secondary-color);line-height:1;margin-bottom:16px}.advantage-item h3{font-size:20px;font-weight:600;margin-bottom:8px}.advantage-item p{font-size:15px;opacity:0.9}.locations-section{background:var(--bg-white)}.locations-map{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.location-card{background:var(--bg-light);padding:28px;border-radius:var(--radius);border-left:4px solid var(--primary-color);transition:var(--transition)}.location-card:hover{background:white;box-shadow:var(--shadow);transform:translateX(4px)}.location-icon{font-size:24px;color:var(--primary-color);margin-bottom:12px}.location-card h3{font-size:18px;font-weight:600;margin-bottom:8px}.location-card p{font-size:14px;color:var(--text-light);margin-bottom:12px;line-height:1.5}.location-card .phone{font-size:14px;color:var(--primary-color);font-weight:600}.location-card .phone i{margin-right:6px}.contact-section{background:var(--bg-light)}.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.contact-card{background:white;padding:28px;border-radius:var(--radius);box-shadow:var(--shadow);transition:var(--transition);position:relative;overflow:hidden}.contact-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.region-tag{position:absolute;top:0;right:0;background:var(--secondary-color);color:white;font-size:12px;padding:6px 12px;border-radius:0 0 0 var(--radius)}.contact-card h3{font-size:18px;font-weight:600;margin-bottom:16px;color:var(--text-dark)}.contact-info p{font-size:14px;color:var(--text-light);margin-bottom:8px}.contact-info i{width:20px;color:var(--primary-color)}.service-area{display:inline-block;margin-top:12px;padding:6px 12px;background:var(--bg-light);border-radius:4px;font-size:12px;color:var(--text-muted)}.contact-notice{margin-top:40px;padding:24px;background:#fff3cd;border-left:4px solid var(--secondary-color);border-radius:var(--radius);display:flex;align-items:flex-start;gap:16px}.contact-notice i{font-size:24px;color:var(--secondary-color);flex-shrink:0}.contact-notice p{font-size:14px;color:var(--text-light);line-height:1.6}.cases-section{background:var(--bg-white)}.cases-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.case-card{background:white;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition)}.case-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}.case-image{height:200px;overflow:hidden}.case-image img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}.case-card:hover .case-image img{transform:scale(1.05)}.case-content{padding:24px}.case-content h3{font-size:18px;font-weight:600;margin-bottom:8px}.case-content p{font-size:14px;color:var(--text-light);margin-bottom:12px}.case-tag{display:inline-block;padding:4px 12px;background:var(--primary-color);color:white;font-size:12px;border-radius:4px}.news-section{background:var(--bg-light)}.news-list{max-width:900px;margin:0 auto}.news-item{display:flex;gap:24px;padding:28px;background:white;border-radius:var(--radius);margin-bottom:20px;box-shadow:var(--shadow);transition:var(--transition)}.news-item:hover{box-shadow:var(--shadow-lg)}.news-date{flex-shrink:0;width:70px;height:70px;background:var(--primary-color);color:white;border-radius:var(--radius);display:flex;flex-direction:column;align-items:center;justify-content:center}.news-date .day{font-size:28px;font-weight:700;line-height:1}.news-date .month{font-size:14px;opacity:0.9}.news-content h3{font-size:18px;font-weight:600;margin-bottom:8px}.news-content h3 a{color:var(--text-dark)}.news-content h3 a:hover{color:var(--primary-color)}.news-content p{font-size:14px;color:var(--text-light);line-height:1.6}.main-footer{background:var(--text-dark);color:white;padding:60px 0 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}.footer-logo h3{font-size:24px;font-weight:700;margin-bottom:12px;color:var(--secondary-color)}.footer-logo p{font-size:14px;opacity:0.8;margin-bottom:20px}.footer-contact p{font-size:14px;margin-bottom:8px;opacity:0.9}.footer-contact i{margin-right:8px;color:var(--secondary-color)}.footer-col h4{font-size:16px;font-weight:600;margin-bottom:20px;color:white}.footer-col ul{list-style:none}.footer-col li{margin-bottom:10px}.footer-col a{font-size:14px;opacity:0.8}.footer-col a:hover{opacity:1;color:var(--secondary-color)}.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding:24px 0;text-align:center}.footer-notice{margin-bottom:16px}.footer-notice p{font-size:14px;opacity:0.9}.copyright p{font-size:13px;opacity:0.7}.floating-contact{position:fixed;right:20px;bottom:100px;display:flex;flex-direction:column;gap:12px;z-index:999}.float-btn{display:flex;align-items:center;gap:8px;padding:12px 16px;background:white;border-radius:30px;box-shadow:var(--shadow-lg);font-size:14px;font-weight:500;transition:var(--transition)}.float-btn:hover{transform:translateX(-4px)}.float-btn.phone{color:var(--accent-color)}.float-btn.wechat{color:#07c160}.float-btn.message{color:var(--primary-color)}.float-btn i{font-size:20px}.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.6);z-index:2000;align-items:center;justify-content:center}.modal.active{display:flex}.modal-content{background:white;padding:40px;border-radius:var(--radius-lg);text-align:center;position:relative;max-width:400px;width:90%}.close-btn{position:absolute;top:16px;right:20px;font-size:28px;cursor:pointer;color:var(--text-muted)}.close-btn:hover{color:var(--text-dark)}.modal-content h3{font-size:20px;margin-bottom:20px}.modal-content img{width:200px;height:200px;margin-bottom:16px}.modal-content p{font-size:14px;color:var(--text-light)}@keyframes slideInLeft{from{opacity:0;transform:translateX(-30px)}to{opacity:1;transform:translateX(0)}}@media (max-width:1024px){.services-grid,.contact-grid{grid-template-columns:repeat(2,1fr)}.advantages-grid{grid-template-columns:repeat(2,1fr)}.locations-map{grid-template-columns:repeat(2,1fr)}.cases-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:768px){.top-bar .container{flex-direction:column;gap:8px}.main-nav{display:none}.mobile-menu-btn{display:block}.hero-slider{height:400px}.slide-content h2{font-size:28px}.slide-content p{font-size:16px}.services-grid,.advantages-grid,.locations-map,.contact-grid,.cases-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.floating-contact{right:10px;bottom:80px}.float-btn span{display:none}.float-btn{width:48px;height:48px;padding:0;justify-content:center}}.page-header{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary-color) 100%);color:white;padding:100px 0 60px;text-align:center}.page-header h1{font-size:42px;font-weight:700;margin-bottom:16px}.page-header p{font-size:18px;opacity:0.9}.breadcrumb{background:var(--bg-light);padding:16px 0}.breadcrumb .container{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-light)}.breadcrumb a:hover{color:var(--primary-color)}.service-detail{padding:60px 0}.service-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.service-detail-content h2{font-size:32px;font-weight:700;margin-bottom:20px;color:var(--text-dark)}.service-detail-content p{font-size:16px;color:var(--text-light);line-height:1.8;margin-bottom:24px}.service-features{list-style:none}.service-features li{padding:12px 0;border-bottom:1px solid var(--border-color);display:flex;align-items:center;gap:12px}.service-features i{color:var(--accent-color)}.service-detail-image{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}.service-detail-image img{width:100%;height:auto;display:block}.about-content{padding:60px 0}.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;margin-bottom:80px}.about-text h2{font-size:32px;font-weight:700;margin-bottom:24px}.about-text p{font-size:16px;color:var(--text-light);line-height:1.8;margin-bottom:16px}.about-image{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}.company-list{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:60px}.company-card{background:white;padding:40px;border-radius:var(--radius-lg);box-shadow:var(--shadow);text-align:center}.company-card h3{font-size:20px;font-weight:600;margin-bottom:12px;color:var(--primary-color)}.company-card p{font-size:14px;color:var(--text-light)}.contact-grid-page{display:grid;grid-template-columns:1fr 1fr;gap:60px;padding:60px 0}.contact-form{background:white;padding:40px;border-radius:var(--radius-lg);box-shadow:var(--shadow)}.form-group{margin-bottom:24px}.form-group label{display:block;font-size:14px;font-weight:500;margin-bottom:8px;color:var(--text-dark)}.form-group input,.form-group textarea{width:100%;padding:12px 16px;border:1px solid var(--border-color);border-radius:var(--radius);font-size:15px;transition:var(--transition)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color)}.form-group textarea{resize:vertical;min-height:120px}.contact-info-panel{padding:40px}.contact-info-panel h3{font-size:24px;font-weight:600;margin-bottom:24px}.contact-info-item{display:flex;gap:16px;margin-bottom:24px}.contact-info-item i{width:48px;height:48px;background:var(--primary-color);color:white;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}.contact-info-item h4{font-size:16px;font-weight:600;margin-bottom:4px}.contact-info-item p{font-size:14px;color:var(--text-light)}.banner-btn{padding:15px 40px !important;font-size:16px !important;font-weight:bold !important;border-radius:var(--radius) !important;transition:var(--transition) !important;display:inline-block !important;text-align:center !important;cursor:pointer !important}.btn-primary.banner-btn{background:var(--secondary-color) !important;color:white !important;border:2px solid var(--secondary-color) !important}.btn-primary.banner-btn:hover{background:#d35400 !important;border-color:#d35400 !important;transform:translateY(-2px) !important;box-shadow:var(--shadow-lg) !important}.btn-secondary.banner-btn{background:transparent !important;color:white !important;border:2px solid white !important}.btn-secondary.banner-btn:hover{background:rgba(255,255,255,0.1) !important;transform:translateY(-2px) !important;box-shadow:var(--shadow) !important}img{border-radius:var(--radius) !important;transition:var(--transition) !important}img:hover{transform:scale(1.02) !important;box-shadow:var(--shadow-lg) !important}.service-card:hover,.case-card:hover{transform:translateY(-8px) !important;box-shadow:var(--shadow-lg) !important}@media (max-width:768px){.banner-btn{padding:12px 30px !important;font-size:14px !important;width:100% !important;margin-bottom:10px !important}.service-card,.case-card{margin-bottom:20px !important}}.fade-in{animation:fadeIn 0.5s ease-in}@keyframes fadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}:focus{outline:2px solid var(--primary-light) !important;outline-offset:2px !important}@media print{.top-bar,.main-header,.banner-section,.btn-primary,.btn-secondary{display:none !important}}@media (max-width:1200px){.container{max-width:1140px;padding:0 15px}}@media (max-width:992px){.container{max-width:960px}.main-nav ul{flex-wrap:wrap;justify-content:center}.main-nav li{margin:5px 10px}.hero-content h1{font-size:36px}.hero-content p{font-size:18px}}@media (max-width:768px){.container{max-width:720px}.main-header{padding:15px 0}.logo{flex-direction:column;text-align:center}.logo-text h1{font-size:20px}.logo-text span{font-size:12px}.main-nav{display:none}.mobile-menu-btn{display:block}.hero-section{padding:60px 0}.hero-content h1{font-size:28px}.hero-content p{font-size:16px}.section-header h2{font-size:28px}.services-grid,.news-grid,.locations-map{grid-template-columns:1fr;gap:20px}.news-card,.service-card,.location-card{margin-bottom:20px}}@media (max-width:576px){.container{max-width:540px;padding:0 10px}.hero-section{padding:40px 0}.hero-content h1{font-size:24px}.btn-primary,.btn-secondary{padding:12px 25px;font-size:14px}.section-header h2{font-size:24px}.section-header p{font-size:14px}.top-bar .container{flex-direction:column;gap:10px;text-align:center}.top-info,.top-links{width:100%;justify-content:center}}@media (hover:none) and (pointer:coarse){.btn-primary,.btn-secondary,.news-link,.service-card,.location-card{min-height:44px;min-width:44px}input,select,textarea{font-size:16px}}
/* 性能优化提示 */
/* 1. 使用will-change优化动画性能 */
.animate-element {
    will-change: transform, opacity;
}

/* 2. 优化字体加载 */
@font-face {
    font-display: swap;
}

/* 3. 图片懒加载样式 */
.lazy-image {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lazy-image.loaded {
    opacity: 1;
}

/* 4. 优化滚动性能 */
.scroll-container {
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
}

/* 5. 减少重绘区域 */
.fixed-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    will-change: transform;
}