/* t1 - 商务门户：大图Hero+三列服务+编号统计条+客户案例 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:"PingFang SC","Microsoft YaHei",sans-serif;background:#f8f9fa;color:#212529;font-size:15px;line-height:1.7}
a{color:#0d6efd;text-decoration:none}a:hover{color:#0b5ed7}
img{max-width:100%}ul,ol{list-style:none;padding:0;margin:0}
.nt1-container{max-width:1140px;margin:0 auto;padding:0 15px}

.nt1-header{background:linear-gradient(135deg,#0d6efd,#6610f2);position:sticky;top:0;z-index:999}
.nt1-header .nt1-container{display:flex;align-items:center;justify-content:space-between;height:60px}
.nt1-logo{color:#fff;font-weight:700;font-size:18px;display:flex;align-items:center;gap:8px}.nt1-logo img{height:32px}
.nt1-nav{display:flex;gap:4px}.nt1-nav a{color:rgba(255,255,255,0.85);padding:6px 14px;border-radius:6px;font-size:14px}.nt1-nav a:hover{background:rgba(255,255,255,0.1);color:#fff}
.nt1-nav .nt1-drop{position:relative}.nt1-nav .nt1-drop-menu{display:none;position:absolute;top:100%;right:0;background:#fff;border-radius:8px;min-width:150px;padding:4px 0;box-shadow:0 4px 20px rgba(0,0,0,0.1)}.nt1-nav .nt1-drop:hover .nt1-drop-menu{display:block}.nt1-nav .nt1-drop-menu a{display:block;padding:8px 16px;color:#333;font-size:13px}.nt1-nav .nt1-drop-menu a:hover{background:#f0f4ff}
.nt1-header .nt1-cta{background:#ffc107;color:#212529;padding:7px 18px;border-radius:6px;font-size:14px;font-weight:600}.nt1-header .nt1-cta:hover{background:#e0a800;color:#212529}

.nt1-hero{background:linear-gradient(135deg,#0d6efd 0%,#6610f2 50%,#0d6efd 100%);padding:80px 0;color:#fff;position:relative;overflow:hidden}
.nt1-hero::before{content:'';position:absolute;right:-100px;top:-100px;width:400px;height:400px;background:rgba(255,255,255,0.03);border-radius:50%}
.nt1-hero .nt1-container{display:flex;align-items:center;gap:50px;position:relative;z-index:1}
.nt1-hero .nt1-hero-text{flex:1}.nt1-hero .nt1-hero-text h1{font-size:42px;font-weight:700;margin-bottom:14px}.nt1-hero .nt1-hero-text p{color:rgba(255,255,255,0.75);font-size:16px;margin-bottom:28px}
.nt1-hero .nt1-hero-img{flex-shrink:0}.nt1-hero .nt1-hero-img img{max-height:240px;border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,0.3)}

.nt1-btn{display:inline-block;padding:10px 28px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;border:none}.nt1-btn-warning{background:#ffc107;color:#212529}.nt1-btn-warning:hover{background:#e0a800;transform:translateY(-1px)}
.nt1-btn-light{background:rgba(255,255,255,0.15);color:#fff;border:1px solid rgba(255,255,255,0.25)}.nt1-btn-light:hover{background:rgba(255,255,255,0.25)}

.nt1-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:#fff;box-shadow:0 2px 12px rgba(0,0,0,0.06);border-radius:12px;overflow:hidden;margin:-40px 0 60px;position:relative}
.nt1-stats .nt1-stat{padding:30px 20px;text-align:center;border-right:1px solid #f0f0f0}.nt1-stats .nt1-stat:last-child{border-right:none}
.nt1-stats .nt1-stat .n{font-size:32px;font-weight:800;color:#0d6efd}.nt1-stats .nt1-stat .l{font-size:13px;color:#6c757d;margin-top:4px}

.nt1-section{padding:70px 0}.nt1-section h2{font-size:28px;font-weight:700;margin-bottom:10px;text-align:center}.nt1-section .sub{text-align:center;color:#6c757d;margin-bottom:40px;font-size:15px}

.nt1-services{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.nt1-svc{background:#fff;border-radius:12px;padding:32px 24px;text-align:center;box-shadow:0 2px 8px rgba(0,0,0,0.04);transition:.2s}.nt1-svc:hover{box-shadow:0 8px 30px rgba(0,0,0,0.08);transform:translateY(-3px)}
.nt1-svc .svc-icon{width:72px;height:72px;margin:0 auto 16px;border-radius:50%;overflow:hidden;background:linear-gradient(135deg,#e7f1ff,#dbeafe)}.nt1-svc .svc-icon img{width:100%;height:100%;object-fit:cover}
.nt1-svc h4{font-size:17px;font-weight:600;margin-bottom:6px}.nt1-svc p{font-size:14px;color:#6c757d}

.nt1-cases{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.nt1-case{display:flex;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,0.04)}.nt1-case:hover{box-shadow:0 6px 20px rgba(0,0,0,0.08)}
.nt1-case .c-img{width:200px;flex-shrink:0;overflow:hidden}.nt1-case .c-img img{width:100%;height:100%;object-fit:cover}
.nt1-case .c-body{padding:24px}.nt1-case .c-body h4{font-size:16px;font-weight:600;margin-bottom:6px}.nt1-case .c-body p{font-size:13px;color:#6c757d}

.nt1-news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.nt1-news-card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 1px 4px rgba(0,0,0,0.04)}.nt1-news-card:hover{box-shadow:0 4px 16px rgba(0,0,0,0.08)}.nt1-news-card .ni{height:150px;overflow:hidden}.nt1-news-card .ni img{width:100%;height:100%;object-fit:cover}.nt1-news-card .nt{padding:16px}.nt1-news-card .nt h4{font-size:14px;font-weight:600;margin-bottom:4px}.nt1-news-card .nt .tm{font-size:12px;color:#adb5bd}

.nt1-partner-wrap{overflow:hidden}.nt1-partner-track{display:flex;gap:20px;animation:nt1p 22s linear infinite;width:fit-content}.nt1-partner-item{flex-shrink:0;padding:12px 22px;background:#fff;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,0.03)}.nt1-partner-item img{height:50px;opacity:0.5;filter:grayscale(1)}.nt1-partner-item:hover img{opacity:1;filter:none}
@keyframes nt1p{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

.nt1-faq{max-width:800px;margin:0 auto}.nt1-faq .faq-item{background:#fff;border-radius:8px;margin-bottom:8px;box-shadow:0 1px 4px rgba(0,0,0,0.03);overflow:hidden}.nt1-faq .faq-item .q{padding:14px 20px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between}.nt1-faq .faq-item .q::after{content:'+'}.nt1-faq .faq-item.open .q::after{content:'−'}.nt1-faq .faq-item .a{padding:0 20px;max-height:0;overflow:hidden;transition:.3s;color:#6c757d}.nt1-faq .faq-item.open .a{padding:0 20px 16px;max-height:240px}

.nt1-footer{background:#212529;color:rgba(255,255,255,0.6);padding:50px 0 24px}.nt1-footer a{color:rgba(255,255,255,0.6)}.nt1-footer a:hover{color:#ffc107}.nt1-footer .fg{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;margin-bottom:24px}.nt1-footer .fb{text-align:center;padding-top:20px;border-top:1px solid rgba(255,255,255,0.08);font-size:13px}

.nt1-detail{padding-top:30px}.nt1-row{display:flex;gap:20px;flex-wrap:wrap}.nt1-main{flex:2}.nt1-side{flex:1;min-width:250px}
.nt1-card{background:#fff;border-radius:10px;margin-bottom:16px;box-shadow:0 1px 4px rgba(0,0,0,0.03)}.nt1-card-hd{padding:14px 18px;border-bottom:1px solid #f0f0f0;font-weight:600}.nt1-card-bd{padding:18px}
.nt1-bread{padding:10px 0;font-size:12px;color:#adb5bd}.nt1-bread a{color:#6c757d}
.nt1-art-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid #f8f9fa}.nt1-art-item .art-t{width:160px;height:110px;border-radius:8px;overflow:hidden;flex-shrink:0}.nt1-art-item .art-t img{width:100%;height:100%;object-fit:cover}.nt1-art-item .art-i h4{font-size:14px;font-weight:600}.nt1-art-item .art-i h4 a{color:#212529}.nt1-art-item .art-i .art-d{font-size:12px;color:#adb5bd;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}.nt1-art-item .art-i .art-m{font-size:11px;color:#ced4da}
.nt1-list-i{padding:7px 0;border-bottom:1px solid #f8f9fa}.nt1-list-i a{color:#495057;font-size:13px}.nt1-list-i .lt{font-size:11px;color:#ced4da}
.nt1-tags{display:flex;gap:5px;flex-wrap:wrap}.nt1-tags a{padding:4px 10px;background:#e7f1ff;color:#0d6efd;border-radius:6px;font-size:11px}
.nt1-pag{display:flex;justify-content:center;gap:5px;padding:20px 0}.nt1-pag a,.nt1-pag span{padding:7px 12px;border:1px solid #dee2e6;border-radius:6px;font-size:12px;color:#6c757d;background:#fff}.nt1-pag a:hover{background:#0d6efd;color:#fff}.nt1-pag .active span{background:#0d6efd;color:#fff}
.nt1-dbody{font-size:15px;line-height:1.9;color:#495057}.nt1-dbody img{border-radius:8px}.nt1-dbody a{color:#0d6efd}
.nt1-meta{display:flex;gap:12px;font-size:12px;color:#adb5bd;padding-bottom:10px;border-bottom:1px solid #f0f0f0;margin-bottom:14px}
.nt1-pn{display:flex;gap:12px;padding:12px 0;border-top:1px solid #f0f0f0;margin-top:20px}.nt1-pn .lbl{font-size:11px;color:#ced4da}
.nt1-404{text-align:center;padding:100px 20px}.nt1-404 .code{font-size:120px;color:#f0f0f0}
@media(max-width:768px){.nt1-hero .nt1-container{flex-direction:column;text-align:center}.nt1-services{grid-template-columns:1fr}.nt1-stats{grid-template-columns:1fr 1fr}.nt1-cases{grid-template-columns:1fr}.nt1-news-grid{grid-template-columns:1fr}.nt1-case{flex-direction:column}.nt1-case .c-img{width:100%;height:160px}}