/* ===================== 重置和基础 ===================== */
*{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:#333;line-height:1.8;background:#f5f7fa;font-size:15px}
a{text-decoration:none;color:inherit;transition:color .2s}
a:hover{color:#2a5298}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ===================== 顶部栏 ===================== */
.top-bar{background:#0f2342;color:rgba(255,255,255,.8);font-size:13px;padding:8px 0}
.top-bar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.top-contact{display:inline-flex;align-items:center;gap:6px;margin-left:16px}
.top-contact a{color:rgba(255,255,255,.9)}
.top-contact a:hover{color:#fff;text-decoration:underline}
.icon-sm{width:14px;height:14px;fill:currentColor;opacity:.8}

/* ===================== 导航栏 ===================== */
.main-header{background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.06);position:sticky;top:0;z-index:100}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo{display:flex;align-items:center;gap:12px}
.logo-icon{line-height:0}
.logo-text{display:flex;flex-direction:column}
.logo-title{font-size:22px;font-weight:700;color:#1a3a6c;letter-spacing:2px}
.logo-sub{font-size:11px;color:#999;letter-spacing:3px;text-transform:uppercase}
.main-nav>ul{display:flex;gap:4px}
.main-nav>ul>li{list-style:none}
.main-nav>ul>li>a{display:block;padding:28px 22px;font-size:16px;font-weight:500;color:#333;position:relative;transition:color .2s}
.main-nav>ul>li>a::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:0;height:3px;background:#c8102e;transition:width .3s}
.main-nav>ul>li.active>a{color:#1a3a6c}
.main-nav>ul>li.active>a::after,.main-nav>ul>li>a:hover::after{width:60%}
.main-nav>ul>li>a:hover{color:#1a3a6c}
.mobile-menu-btn{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:8px}
.mobile-menu-btn span{display:block;width:24px;height:3px;background:#1a3a6c;transition:.3s}
.nav-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:99}

/* ===================== Banner ===================== */
.banner-section{position:relative;height:460px;overflow:hidden}
.banner-slider{position:relative;height:100%}
.banner-slide{position:absolute;inset:0;opacity:0;transition:opacity .8s}
.banner-slide.active{opacity:1}
.banner-bg{position:absolute;inset:0}
.banner-pattern{position:absolute;inset:0;background-image:radial-gradient(circle at 20% 50%,rgba(255,255,255,.08) 0,transparent 50%),radial-gradient(circle at 80% 20%,rgba(255,255,255,.05) 0,transparent 40%)}
.banner-content{position:relative;z-index:2;max-width:600px;padding-top:80px}
.banner-title{font-size:40px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:2px;text-shadow:0 2px 8px rgba(0,0,0,.2)}
.banner-desc{font-size:18px;color:rgba(255,255,255,.85);margin-bottom:32px;line-height:1.8}
.banner-btn{display:inline-block;padding:12px 36px;background:#c8102e;color:#fff;border-radius:4px;font-size:15px;transition:all .3s}
.banner-btn:hover{background:#a00c24;color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(200,16,46,.3)}
.banner-dots{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:3}
.banner-dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:.3s}
.banner-dot.active{background:#c8102e;width:30px;border-radius:5px}
.animate-up{animation:slideUp .8s ease forwards}
.animate-up-delay{animation:slideUp .8s ease .2s forwards;opacity:0}
.animate-up-delay2{animation:slideUp .8s ease .4s forwards;opacity:0}
@keyframes slideUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

/* ===================== 快捷服务 ===================== */
.quick-services{padding:30px 0;background:#fff}
.quick-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.quick-card{display:flex;flex-direction:column;align-items:center;gap:12px;padding:24px 16px;border-radius:10px;transition:all .3s;text-align:center}
.quick-card:hover{background:#f0f4fa;transform:translateY(-4px);box-shadow:0 8px 20px rgba(26,58,108,.1)}
.quick-icon{width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#1a3a6c,#2a5298);border-radius:50%;color:#fff}
.quick-name{font-size:14px;font-weight:600;color:#333}

/* ===================== 区块标题 ===================== */
.section-header{margin-bottom:36px}
.section-header.center{text-align:center}
.section-en{display:block;font-size:14px;color:#999;letter-spacing:3px;text-transform:uppercase;margin-bottom:6px}
.section-title{font-size:28px;font-weight:700;color:#1a3a6c;letter-spacing:2px}
.section-line{width:50px;height:3px;background:#c8102e;margin-top:14px}
.section-header.center .section-line{margin:14px auto 0}
.section-subtitle{font-size:15px;color:#888;margin-top:16px}

/* ===================== 公司简介 ===================== */
.about-preview{padding:60px 0;background:#f5f7fa}
.about-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:50px;align-items:center}
.about-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0}
.about-points li{padding-left:24px;position:relative;font-size:14px;color:#555}
.about-points li::before{content:'✓';position:absolute;left:0;color:#c8102e;font-weight:bold}
.about-right{background:#fff;border-radius:12px;padding:40px;box-shadow:0 4px 20px rgba(0,0,0,.06)}
.about-stats{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.stat-item{text-align:center;padding:20px 0;border-right:1px solid #f0f0f0}
.stat-item:nth-child(2n){border-right:none}
.stat-num{font-size:36px;font-weight:700;color:#1a3a6c}
.stat-num span{font-size:18px;color:#999}
.stat-label{font-size:13px;color:#888;margin-top:6px}

/* ===================== 业务领域 ===================== */
.services-section{padding:60px 0;background:#fff}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{background:#fff;border:1px solid #eee;border-radius:10px;padding:32px 24px;text-align:center;transition:all .3s}
.service-card:hover{border-color:#2a5298;box-shadow:0 12px 30px rgba(26,58,108,.12);transform:translateY(-6px)}
.service-icon-box{width:72px;height:72px;margin:0 auto 20px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef2f8,#dde6f3);border-radius:50%;color:#1a3a6c;transition:.3s}
.service-card:hover .service-icon-box{background:linear-gradient(135deg,#1a3a6c,#2a5298);color:#fff}
.service-name{font-size:18px;font-weight:600;margin-bottom:10px;color:#333}
.service-desc{font-size:13px;color:#888;line-height:1.7;margin-bottom:16px}
.service-link{font-size:13px;color:#2a5298;font-weight:500}

/* ===================== 新闻中心 ===================== */
.news-section{padding:60px 0;background:#f5f7fa}
.news-tabs{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.05)}
.news-tab-nav{display:flex;border-bottom:2px solid #f0f0f0}
.news-tab-btn{flex:1;padding:16px;font-size:15px;font-weight:500;background:none;border:none;cursor:pointer;color:#888;transition:.3s;position:relative}
.news-tab-btn.active{color:#1a3a6c;background:#f8fafd}
.news-tab-btn.active::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:3px;background:#c8102e}
.news-tab-content{padding:30px}
.news-tab-pane{display:none}
.news-tab-pane.active{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.news-featured>a{display:block}
.news-featured h3{font-size:20px;font-weight:600;color:#333;margin-bottom:10px;line-height:1.5}
.news-featured p{font-size:13px;color:#888;line-height:1.7;margin-bottom:10px}
.news-date{font-size:13px;color:#c8102e}
.news-list li{border-bottom:1px dashed #eee}
.news-list li:last-child{border-bottom:none}
.news-list li a{display:flex;align-items:center;padding:10px 0;gap:8px}
.news-dot{width:6px;height:6px;border-radius:50%;background:#1a3a6c;flex-shrink:0}
.news-item-title{flex:1;font-size:14px;color:#555;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-item-date{font-size:12px;color:#999;flex-shrink:0}

/* ===================== CTA ===================== */
.cta-section{padding:40px 0;background:#fff}
.cta-box{background:linear-gradient(135deg,#1a3a6c,#2a5298);border-radius:12px;padding:40px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}
.cta-text h2{font-size:26px;color:#fff;margin-bottom:6px}
.cta-text p{font-size:15px;color:rgba(255,255,255,.8)}
.cta-actions{display:flex;gap:16px;align-items:center}
.cta-phone{display:flex;align-items:center;gap:8px;color:#fff;font-size:20px;font-weight:600}
.cta-phone svg{fill:#fff}
.cta-btn{display:inline-block;padding:12px 30px;background:#c8102e;color:#fff;border-radius:6px;font-size:15px;transition:.3s}
.cta-btn:hover{background:#a00c24;color:#fff;transform:translateY(-2px)}

/* ===================== 页面Banner ===================== */
.page-banner{position:relative;height:200px;display:flex;align-items:center;color:#fff;overflow:hidden}
.page-banner .container{position:relative;z-index:2}
.page-banner-title{font-size:30px;font-weight:700;margin-bottom:6px}
.page-banner-subtitle{font-size:14px;opacity:.8}

/* ===================== 面包屑 ===================== */
.breadcrumb-section{background:#fff;padding:14px 0;border-bottom:1px solid #f0f0f0}
.breadcrumb{display:flex;align-items:center;gap:6px;font-size:13px;color:#888}
.breadcrumb a:hover{color:#1a3a6c}
.breadcrumb-sep{color:#ccc}
.breadcrumb .current{color:#333}

/* ===================== 页面内容 ===================== */
.page-content{padding:40px 0}

/* ===================== 筛选标签 ===================== */
.service-filter{display:flex;gap:10px;margin-bottom:30px;flex-wrap:wrap}
.filter-tag{padding:8px 24px;border:1px solid #ddd;border-radius:20px;font-size:14px;color:#666;transition:.3s}
.filter-tag:hover{border-color:#1a3a6c;color:#1a3a6c}
.filter-tag.active{background:#1a3a6c;color:#fff;border-color:#1a3a6c}

/* ===================== 服务列表 ===================== */
.services-list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-list-card{background:#fff;border:1px solid #eee;border-radius:10px;overflow:hidden;transition:all .3s;display:flex;align-items:center;padding:24px}
.service-list-card:hover{border-color:#2a5298;box-shadow:0 12px 30px rgba(0,0,0,.08);transform:translateY(-4px)}
.service-list-icon{width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:#eef2f8;border-radius:50%;color:#1a3a6c;flex-shrink:0;margin-right:20px;transition:.3s}
.service-list-card:hover .service-list-icon{background:#1a3a6c;color:#fff}
.service-list-body{flex:1}
.service-list-title{font-size:16px;font-weight:600;margin-bottom:6px;color:#333}
.service-list-desc{font-size:13px;color:#888;line-height:1.6;margin-bottom:8px}
.service-list-cat{font-size:12px;color:#c8102e}

/* ===================== 详情布局 ===================== */
.detail-layout{display:grid;grid-template-columns:1fr 300px;gap:30px}
.detail-main{background:#fff;border-radius:10px;padding:40px;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.detail-title{font-size:24px;font-weight:700;color:#1a3a6c;margin-bottom:16px;line-height:1.5}
.detail-meta{display:flex;flex-wrap:wrap;gap:20px;padding-bottom:20px;border-bottom:1px solid #f0f0f0;font-size:13px;color:#999;margin-bottom:24px}
.detail-content{font-size:15px;line-height:2;color:#444}
.detail-content p{margin-bottom:16px}
.detail-content ul,.detail-content ol{margin:16px 0 16px 24px}
.detail-content li{margin-bottom:6px}
.detail-cta{margin-top:30px;padding:24px;background:#f8fafd;border-radius:8px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.detail-nav{margin-top:30px;padding-top:20px;border-top:1px solid #f0f0f0}
.detail-nav p{margin-bottom:8px;font-size:14px}
.detail-nav a{color:#2a5298}

/* ===================== 侧边栏 ===================== */
.detail-sidebar{display:flex;flex-direction:column;gap:20px}
.sidebar-box{background:#fff;border-radius:10px;padding:24px;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.sidebar-title{font-size:16px;font-weight:600;color:#1a3a6c;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid #c8102e}
.sidebar-list li{border-bottom:1px dashed #f0f0f0}
.sidebar-list li:last-child{border-bottom:none}
.sidebar-list li a{display:flex;align-items:center;gap:8px;padding:10px 0;font-size:14px;color:#555}
.sidebar-list li a:hover{color:#1a3a6c}
.sidebar-dot{width:6px;height:6px;border-radius:50%;background:#1a3a6c;flex-shrink:0}
.sidebar-contact .sidebar-contact-info p{font-size:13px;margin-bottom:8px;color:#555}
.sidebar-contact .sidebar-contact-info strong{color:#1a3a6c}

/* ===================== 新闻列表 ===================== */
.news-filter-bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.news-search{display:flex;gap:8px}
.search-input{padding:8px 12px;border:1px solid #ddd;border-radius:6px;font-size:14px;width:200px}
.search-btn{padding:8px 20px;background:#1a3a6c;color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:14px}
.search-btn:hover{background:#2a5298}
.news-item{display:flex;gap:20px;background:#fff;border-radius:10px;padding:24px;margin-bottom:16px;box-shadow:0 2px 8px rgba(0,0,0,.03);transition:.3s}
.news-item:hover{box-shadow:0 4px 16px rgba(0,0,0,.08)}
.news-item-date{display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:60px;background:#f5f7fa;border-radius:8px;padding:10px}
.date-day{font-size:28px;font-weight:700;color:#1a3a6c}
.date-month{font-size:12px;color:#999}
.news-item-body{flex:1}
.news-item-title{font-size:17px;font-weight:600;margin-bottom:8px}
.news-item-title a{color:#333}
.news-item-title a:hover{color:#1a3a6c}
.badge-top{display:inline-block;padding:2px 8px;background:#c8102e;color:#fff;border-radius:3px;font-size:11px;margin-right:6px}
.news-item-summary{font-size:13px;color:#888;line-height:1.7;margin-bottom:8px}
.news-item-meta{display:flex;gap:16px;font-size:12px;color:#aaa}

/* ===================== 视频中心 ===================== */
.videos-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.video-card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.04);cursor:pointer;transition:.3s}
.video-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateY(-4px)}
.video-cover{height:200px;background:linear-gradient(135deg,#1a3a6c,#2a5298);display:flex;align-items:center;justify-content:center;position:relative}
.video-play{color:#fff;opacity:.9;transition:.3s}
.video-card:hover .video-play{transform:scale(1.15)}
.video-info{padding:16px}
.video-title{font-size:16px;font-weight:600;margin-bottom:6px}
.video-desc{font-size:13px;color:#888}

/* ===================== 联系页面 ===================== */
.contact-layout{display:grid;grid-template-columns:1fr 1.5fr;gap:40px}
.contact-info-item{display:flex;align-items:center;gap:16px;margin-bottom:24px}
.contact-info-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:#eef2f8;border-radius:50%;color:#1a3a6c;flex-shrink:0}
.contact-info-text{display:flex;flex-direction:column}
.ci-label{font-size:12px;color:#999;margin-bottom:2px}
.ci-value{font-size:16px;font-weight:500;color:#333}
.contact-form-wrap{background:#fff;border-radius:10px;padding:36px;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.contact-form .form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-form .form-group{margin-bottom:16px}
.contact-form label{display:block;margin-bottom:6px;font-weight:600;font-size:14px;color:#555}
.required{color:#c8102e}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:6px;font-size:14px;font-family:inherit;transition:border-color .2s}
.contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{border-color:#1a3a6c;outline:none}
.captcha-row{display:grid;grid-template-columns:1fr 120px;gap:16px}
.captcha-img{height:42px;border-radius:6px;cursor:pointer}
.form-submit{text-align:center;margin-top:8px}
.form-message{margin-top:16px;text-align:center}
.form-message.success{color:#52c41a;font-weight:600}
.form-message.error{color:#f5222d;font-weight:600}

/* ===================== 分页 ===================== */
.pagination{display:flex;justify-content:center;gap:6px;margin-top:30px;flex-wrap:wrap}
.page-link{display:inline-block;padding:8px 14px;border:1px solid #ddd;border-radius:6px;font-size:14px;color:#666;transition:.3s}
.page-link:hover{border-color:#1a3a6c;color:#1a3a6c}
.page-link.active{background:#1a3a6c;color:#fff;border-color:#1a3a6c}
.page-ellipsis{padding:8px 6px;color:#999}

/* ===================== 空状态 ===================== */
.empty-state{text-align:center;padding:60px 20px;color:#999}
.empty-state p{margin-bottom:16px}

/* ===================== 按钮 ===================== */
.btn-primary,.btn-outline{display:inline-block;padding:10px 28px;border-radius:6px;font-size:14px;transition:all .3s;cursor:pointer;border:none}
.btn-primary{background:#1a3a6c;color:#fff}
.btn-primary:hover{background:#2a5298;color:#fff;transform:translateY(-1px)}
.btn-outline{background:none;color:#1a3a6c;border:2px solid #1a3a6c}
.btn-outline:hover{background:#1a3a6c;color:#fff}
.btn-lg{padding:12px 40px;font-size:16px}
.btn-block{display:block;width:100%;text-align:center;margin-top:16px}
.section-more{text-align:center;margin-top:40px}

/* ===================== 底部 ===================== */
.main-footer{background:#0f2342;color:rgba(255,255,255,.7)}
.footer-links{border-bottom:1px solid rgba(255,255,255,.1);padding:24px 0}
.footer-links-title{font-size:14px;color:rgba(255,255,255,.5);margin-bottom:10px}
.footer-links-list{display:flex;flex-wrap:wrap;gap:20px}
.footer-links-list a{font-size:13px;color:rgba(255,255,255,.7)}
.footer-links-list a:hover{color:#fff}
.footer-main{padding:40px 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-col-title{font-size:16px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-contact li{display:flex;align-items:center;gap:8px;margin-bottom:10px;font-size:13px}
.footer-contact a{color:rgba(255,255,255,.7)}
.footer-contact a:hover{color:#fff}
.footer-nav li{margin-bottom:8px;font-size:13px}
.footer-nav a:hover{color:#fff}
.footer-qr{text-align:center}
.qr-placeholder{display:inline-block;text-align:center}
.qr-placeholder svg{border-radius:6px}
.qr-text{font-size:12px;margin-top:8px;color:rgba(255,255,255,.5)}
.footer-copyright{border-top:1px solid rgba(255,255,255,.1);padding:16px 0;text-align:center;font-size:13px}
.footer-copyright a{color:rgba(255,255,255,.6);margin:0 6px}
.footer-copyright a:hover{color:#fff}

/* ===================== 悬浮咨询 ===================== */
.float-consult{position:fixed;right:20px;bottom:100px;display:flex;flex-direction:column;gap:8px;z-index:50}
.float-btn{display:flex;flex-direction:column;align-items:center;gap:4px;width:60px;height:60px;background:#1a3a6c;color:#fff;border-radius:10px;justify-content:center;font-size:11px;transition:.3s;box-shadow:0 4px 12px rgba(0,0,0,.15);cursor:pointer;border:none;font-family:inherit}
.float-btn:hover{background:#2a5298;transform:translateX(-4px)}
.float-btn svg{fill:#fff}
.chat-trigger-btn{position:relative}
.chat-unread-dot{position:absolute;top:2px;right:2px;min-width:18px;height:18px;background:#e74c3c;color:#fff;border-radius:9px;font-size:11px;line-height:18px;text-align:center;padding:0 4px;font-weight:bold}

/* ===================== 在线客服聊天 ===================== */
.chat-widget{position:fixed;right:90px;bottom:100px;width:340px;height:460px;background:#fff;border-radius:12px;box-shadow:0 8px 30px rgba(0,0,0,.2);display:flex;flex-direction:column;z-index:60;overflow:hidden}
.chat-widget-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:linear-gradient(135deg,#1a3a6c,#2a5298);color:#fff}
.chat-widget-title{display:flex;align-items:center;gap:10px}
.chat-widget-avatar{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center}
.chat-widget-name{font-size:14px;font-weight:bold}
.chat-widget-status{font-size:12px;opacity:.9;display:flex;align-items:center;gap:4px}
.status-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#aaa}
.status-dot.online{background:#2ecc71}
.chat-widget-close{background:none;border:none;color:#fff;font-size:24px;cursor:pointer;opacity:.8;line-height:1}
.chat-widget-close:hover{opacity:1}
.chat-widget-body{flex:1;overflow-y:auto;padding:12px;background:#f5f7fa;display:flex;flex-direction:column;gap:10px}
.chat-loading{text-align:center;color:#999;font-size:13px;padding:20px}
.chat-msg-widget{display:flex;flex-direction:column;max-width:75%;align-self:flex-start}
.chat-msg-widget.mine{align-self:flex-end;align-items:flex-end}
.chat-msg-widget.system{align-self:center;max-width:90%}
.chat-msg-widget-name{font-size:11px;color:#999;margin-bottom:3px}
.chat-msg-widget-bubble{padding:8px 12px;border-radius:12px;background:#fff;font-size:13px;line-height:1.6;word-break:break-word;box-shadow:0 1px 2px rgba(0,0,0,.05)}
.chat-msg-widget.mine .chat-msg-widget-bubble{background:#1a3a6c;color:#fff}
.chat-msg-widget.system .chat-msg-widget-bubble{background:transparent;color:#999;font-size:12px;text-align:center;box-shadow:none}
.chat-msg-widget-time{font-size:10px;color:#bbb;margin-top:3px}
.chat-widget-input{display:flex;gap:8px;padding:10px;border-top:1px solid #eee;background:#fff}
.chat-widget-input textarea{flex:1;border:1px solid #ddd;border-radius:8px;padding:8px;resize:none;font-size:13px;font-family:inherit;outline:none}
.chat-widget-input textarea:focus{border-color:#1a3a6c}
.chat-widget-send{padding:0 16px;background:#1a3a6c;color:#fff;border:none;border-radius:8px;cursor:pointer;font-size:13px;transition:.2s}
.chat-widget-send:hover{background:#2a5298}

/* ===================== 响应式 ===================== */
@media(max-width:1024px){
    .services-grid,.services-list-grid,.videos-grid{grid-template-columns:repeat(2,1fr)}
    .quick-grid{grid-template-columns:repeat(5,1fr)}
    .detail-layout{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
    .top-bar-right{display:none}
    .main-nav{position:fixed;right:-280px;top:0;bottom:0;width:260px;background:#fff;flex-direction:column;padding-top:60px;transition:.3s;z-index:101;box-shadow:-2px 0 10px rgba(0,0,0,.1)}
    .main-nav.show{right:0}
    .main-nav>ul{flex-direction:column}
    .main-nav>ul>li>a{padding:16px 24px}
    .mobile-menu-btn{display:flex}
    .nav-overlay.show{display:block}
    .banner-section{height:300px}
    .banner-content{padding-top:40px}
    .banner-title{font-size:24px}
    .banner-desc{font-size:14px;margin-bottom:20px}
    .quick-grid{grid-template-columns:repeat(3,1fr)}
    .about-grid{grid-template-columns:1fr}
    .services-grid,.services-list-grid,.videos-grid,.news-tab-pane.active{grid-template-columns:1fr}
    .contact-layout{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .cta-box{flex-direction:column;text-align:center}
    .news-item{flex-direction:column;gap:12px}
    .news-item-date{flex-direction:row;gap:8px;min-width:auto;padding:6px 12px}
    .contact-form .form-row,.captcha-row{grid-template-columns:1fr}
    .page-banner{height:150px}
    .page-banner-title{font-size:22px}
    .section-title{font-size:22px}
    .detail-main{padding:20px}
    .float-consult{right:10px;bottom:80px}
    .float-btn{width:50px;height:50px;font-size:10px}
}
@media(max-width:480px){
    .quick-grid{grid-template-columns:repeat(2,1fr)}
    .about-stats{grid-template-columns:1fr}
    .stat-item{border-right:none;border-bottom:1px solid #f0f0f0}
    .stat-item:last-child{border-bottom:none}
    .news-search{width:100%}
    .search-input{flex:1;width:auto}
}