/* roulang page: index */
:root{
      --blue:#1677d2;
      --blue-dark:#075fae;
      --blue-soft:#eaf4ff;
      --ink:#102d3a;
      --ink-2:#304e5d;
      --muted:#69808c;
      --teal:#249c8a;
      --green-soft:#e6f5ef;
      --orange:#d98536;
      --warm:#fbfcfa;
      --pale:#f2f7fa;
      --line:#dce8ed;
      --white:#fff;
      --shadow:0 14px 38px rgba(26,66,83,.09);
      --shadow-hover:0 22px 46px rgba(20,81,108,.16);
      --radius:18px;
      --radius-sm:12px;
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:120px}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:var(--warm);font-size:16px;line-height:1.75;overflow-x:hidden}
    a{text-decoration:none;color:inherit}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(22,119,210,.35);outline-offset:3px}
    .site-container{max-width:var(--container);margin:auto;padding:0 22px}
    .topline{background:#0d3544;color:#d7e9ee;font-size:13px}
    .topline-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px}
    .top-pills,.top-contact{display:flex;align-items:center;gap:10px;white-space:nowrap}
    .top-pills span{display:inline-flex;align-items:center;gap:6px}
    .top-pills span+span:before{content:"";width:3px;height:3px;background:#7fc8bf;border-radius:50%;margin-right:10px}
    .top-contact a{color:#fff;font-weight:600}
    .top-contact .quick-consult{padding:3px 11px;border:1px solid rgba(255,255,255,.3);border-radius:999px;color:#dff8f3}
    .main-header{position:sticky;top:0;z-index:1050;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,232,237,.8)}
    .nav-shell{min-height:76px;display:flex;align-items:center}
    .navbar{width:100%;padding:0}
    .navbar-brand{color:var(--ink)!important;font-size:20px;font-weight:800;letter-spacing:.02em;display:flex;align-items:center;gap:10px;margin-right:34px}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;display:inline-grid;place-items:center;font-size:15px;box-shadow:0 6px 14px rgba(22,119,210,.25)}
    .navbar-nav{gap:3px}
    .navbar-nav .nav-link{font-size:14px;color:var(--ink-2);font-weight:600;padding:10px 10px!important;border-radius:8px;transition:.2s ease}
    .navbar-nav .nav-link:hover,.navbar-nav .nav-link.active{color:var(--blue);background:var(--blue-soft)}
    .navbar-toggler{border:1px solid var(--line);width:46px;height:46px;border-radius:12px;padding:0;color:var(--ink);box-shadow:none!important}
    .navbar-toggler-icon{width:20px;height:15px;background:none;position:relative;display:inline-block;border-top:2px solid currentColor;border-bottom:2px solid currentColor}
    .navbar-toggler-icon:after{content:"";position:absolute;left:0;right:0;top:5px;border-top:2px solid currentColor}
    .btn-main,.btn-outline,.btn-lightline{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:none;border-radius:10px;padding:12px 18px;font-weight:700;font-size:15px;line-height:1.4;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
    .btn-main{background:var(--blue);color:#fff;box-shadow:0 8px 17px rgba(22,119,210,.22)}
    .btn-main:hover{color:#fff;background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(22,119,210,.3)}
    .btn-main:active{transform:translateY(0)}
    .btn-outline{background:transparent;color:var(--blue);border:1px solid #b6d6f2}
    .btn-outline:hover{color:var(--blue-dark);border-color:var(--blue);background:var(--blue-soft);transform:translateY(-1px)}
    .btn-lightline{border:1px solid rgba(255,255,255,.58);color:#fff;background:transparent}
    .btn-lightline:hover{color:#fff;background:rgba(255,255,255,.1);transform:translateY(-1px)}
    .nav-cta{margin-left:18px;padding:10px 15px;font-size:14px}
    .hero{position:relative;background:#103745}
    .hero .carousel,.hero .carousel-inner,.hero .carousel-item{height:635px}
    .hero-slide{height:635px;background-size:cover;background-position:center;position:relative}
    .hero-slide:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,34,48,.84) 0%,rgba(9,46,62,.66) 42%,rgba(9,46,62,.18) 73%,rgba(9,46,62,.34) 100%)}
    .hero-slide:after{content:"";position:absolute;width:52%;height:100%;right:-9%;top:0;background:linear-gradient(115deg,transparent 15%,rgba(36,156,138,.18) 16%,rgba(36,156,138,.08) 43%,transparent 44%);clip-path:polygon(29% 0,100% 0,100% 100%,0 100%)}
    .hero-content{position:relative;z-index:3;height:100%;display:flex;align-items:center;padding:60px 0 80px}
    .hero-kicker{display:inline-flex;align-items:center;gap:8px;color:#d7fbf4;font-size:13px;font-weight:700;letter-spacing:.08em;margin-bottom:19px}
    .hero-kicker:before{content:"";width:28px;border-top:2px solid #6fd0bf}
    h1{font-size:clamp(38px,4.3vw,56px);line-height:1.23;letter-spacing:-.035em;font-weight:800;color:#fff;max-width:770px;margin:0 0 20px}
    .hero-copy{color:#e3f0f3;font-size:17px;max-width:760px;line-height:1.9;margin:0 0 28px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .hero-meta{position:absolute;z-index:5;left:0;right:0;bottom:22px}
    .hero-meta-inner{display:flex;gap:9px;flex-wrap:wrap}
    .hero-meta span{padding:7px 12px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.19);color:#eaf8f7;font-size:13px;backdrop-filter:blur(6px)}
    .hero-control{position:absolute;z-index:6;right:max(22px,calc((100% - var(--container))/2));bottom:25px;display:flex;gap:8px}
    .hero-control button{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.45);background:rgba(9,40,52,.35);color:#fff;display:grid;place-items:center;transition:.2s}
    .hero-control button:hover{background:var(--blue);border-color:var(--blue)}
    .carousel-progress{position:absolute;z-index:6;height:3px;background:rgba(255,255,255,.23);left:0;right:0;bottom:0}
    .carousel-progress b{display:block;width:33.333%;height:100%;background:#78d5c5;transition:width 1s linear}
    section{position:relative;padding:105px 0}
    .section-eyebrow{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;margin-bottom:10px;display:flex;align-items:center;gap:8px}
    .section-eyebrow:before{content:"";width:18px;height:2px;background:var(--teal)}
    .section-title{font-size:clamp(29px,3.2vw,40px);line-height:1.3;letter-spacing:-.025em;font-weight:800;color:var(--ink);margin:0 0 15px}
    .section-desc{max-width:700px;color:var(--muted);font-size:16px;margin:0}
    .pain-section{background:var(--pale);overflow:hidden}
    .pressure-line{position:absolute;left:4%;right:4%;top:51%;border-top:1px dashed #b9d2df}
    .pain-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:50px}
    .pain-item{position:relative;padding:24px 20px 22px;border-top:3px solid #c9dfec;background:rgba(255,255,255,.7);border-radius:0 0 var(--radius-sm) var(--radius-sm)}
    .pain-item:nth-child(2),.pain-item:nth-child(4){transform:translateY(30px)}
    .pain-no{font-size:12px;color:var(--blue);font-weight:800;letter-spacing:.12em}
    .pain-icon{margin:13px 0;color:var(--teal);font-size:23px}
    .pain-item h3{font-size:18px;font-weight:800;margin:0 0 7px;color:var(--ink)}
    .pain-item p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}
    .solution-grid{margin-top:43px;align-items:center}
    .image-frame{position:relative;border-radius:20px;overflow:hidden;min-height:455px;box-shadow:var(--shadow)}
    .image-frame img{width:100%;height:455px;object-fit:cover}
    .image-frame:after{content:"赛事指挥协同";position:absolute;bottom:20px;left:20px;color:#fff;background:rgba(8,39,54,.72);border-left:3px solid #6ad0bf;padding:9px 14px;font-size:14px;font-weight:700}
    .verify-box{display:flex;gap:13px;background:var(--green-soft);border:1px solid #cce9df;padding:14px 16px;border-radius:13px;margin:20px 0;color:#356a62;font-size:14px}
    .verify-box i{font-size:19px;color:var(--teal);margin-top:4px}
    .module-list{margin:24px 0 26px;padding:0;list-style:none}
    .module-list li{display:flex;align-items:flex-start;gap:12px;padding:11px 0;border-bottom:1px solid var(--line)}
    .module-list i{margin-top:6px;color:var(--blue);font-size:13px}
    .module-list strong{display:block;font-size:16px;color:var(--ink)}
    .module-list span{display:block;color:var(--muted);font-size:14px;margin-top:1px}
    .process-section{background:linear-gradient(180deg,#fff 0,#f5fafc 100%)}
    .process-track{display:grid;grid-template-columns:repeat(5,1fr);position:relative;margin-top:54px}
    .process-track:before{content:"";position:absolute;top:45px;left:7%;right:7%;height:1px;background:#b8d6df}
    .process-step{position:relative;padding:0 13px}
    .step-node{width:91px;height:91px;border:1px solid #b8d7e4;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--blue);font-size:28px;font-weight:800;position:relative;z-index:1;margin-bottom:20px;box-shadow:0 8px 18px rgba(33,92,119,.07)}
    .process-step:nth-child(2) .step-node,.process-step:nth-child(4) .step-node{margin-top:28px}
    .process-step:nth-child(2),.process-step:nth-child(4){padding-top:28px}
    .process-step h3{font-size:17px;font-weight:800;margin:0 0 7px}
    .process-step p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
    .advantage-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:minmax(180px,auto);gap:18px;margin-top:48px}
    .adv-card{padding:27px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:0 7px 20px rgba(25,67,84,.05);transition:.25s}
    .adv-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#bedceb}
    .adv-card.featured{grid-column:span 2;background:#123946;color:#fff;border:none;padding:31px;background-image:radial-gradient(circle at 82% 22%,rgba(87,194,176,.23),transparent 26%)}
    .adv-card.featured h3,.adv-card.featured p{color:#fff}
    .adv-card:nth-child(2){margin-top:24px}.adv-card:nth-child(5){margin-top:-22px}
    .adv-icon{width:44px;height:44px;border-radius:12px;background:var(--blue-soft);display:grid;place-items:center;color:var(--blue);font-size:19px;margin-bottom:18px;transition:.2s}
    .adv-card:hover .adv-icon{background:var(--blue);color:#fff}.featured .adv-icon{background:rgba(255,255,255,.13);color:#82dbce}
    .adv-card h3{font-size:19px;font-weight:800;margin:0 0 8px}.adv-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
    .services-section{background:var(--pale)}
    .service-grid{display:grid;grid-template-columns:1.06fr .94fr .94fr;gap:20px;margin-top:46px;align-items:end}
    .service-card{position:relative;overflow:hidden;border-radius:18px;background:#123a49;height:390px;box-shadow:var(--shadow)}
    .service-card:first-child{height:455px}
    .service-card img{width:100%;height:100%;object-fit:cover;opacity:.77;transition:transform .45s}
    .service-card:hover img{transform:scale(1.05)}
    .service-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,35,48,.05),rgba(7,35,48,.88))}
    .service-content{position:absolute;z-index:2;left:0;right:0;bottom:0;padding:24px;color:#fff;clip-path:polygon(0 16px,100% 0,100% 100%,0 100%);padding-top:39px;background:rgba(8,42,56,.76)}
    .service-tag{font-size:12px;color:#baf2e9;letter-spacing:.08em;font-weight:700}
    .service-content h3{font-size:22px;font-weight:800;margin:7px 0}.service-content p{font-size:14px;color:#d9ecf0;margin:0 0 14px;line-height:1.65}
    .service-link{font-size:14px;color:#fff;font-weight:700;border-bottom:1px solid #78d5c5;padding-bottom:2px}
    .case-section{background:#102f3b;color:#fff;overflow:hidden}
    .case-section:before{content:"";position:absolute;width:500px;height:500px;border:1px solid rgba(120,213,197,.18);border-radius:50%;right:-180px;top:-180px}
    .case-image{position:relative;border-radius:20px;overflow:hidden;height:455px}
    .case-image img{width:100%;height:100%;object-fit:cover;opacity:.82}
    .case-data{position:absolute;left:18px;bottom:18px;right:18px;display:flex;gap:10px}
    .case-data span{flex:1;background:rgba(8,31,40,.75);border:1px solid rgba(255,255,255,.16);padding:11px;border-radius:11px;font-size:12px;color:#d4ecea}
    .case-data b{display:block;color:#7cdbc9;font-size:18px}
    .case-section .section-eyebrow{color:#7ed8c9}.case-section .section-title{color:#fff}.case-section .section-desc{color:#c9dce1}
    .case-points{margin:25px 0;padding:0;list-style:none}.case-points li{padding:13px 0;border-bottom:1px solid rgba(255,255,255,.16);color:#daebed;font-size:15px}.case-points i{color:#77d8c7;margin-right:10px}
    .story-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:45px}
    .story-card{display:grid;grid-template-columns:170px 1fr;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 8px 20px rgba(30,70,90,.06)}
    .story-card:nth-child(even){transform:translateY(40px)}
    .story-card img{width:100%;height:100%;min-height:245px;object-fit:cover}
    .story-body{padding:23px}.story-label{font-size:12px;color:var(--teal);font-weight:800;letter-spacing:.07em}.story-body h3{font-size:19px;font-weight:800;margin:8px 0}.story-body p{font-size:14px;color:var(--muted);line-height:1.7;margin:0 0 12px}.story-result{font-size:13px;color:#477080;padding-top:10px;border-top:1px solid var(--line)}.story-result b{color:var(--blue)}
    .stats-bar{padding:55px 0;background:#e9f3f7}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.stat-item{padding-left:23px;border-left:2px solid #8fcfca}.stat-number{font-size:37px;line-height:1;color:var(--blue);font-weight:800;letter-spacing:-.04em}.stat-number small{font-size:18px;margin-left:2px}.stat-item p{font-size:14px;color:var(--muted);margin:9px 0 0}
    .scene-section{background:#fff}.scene-map{position:relative;min-height:410px;border-radius:20px;background:#eff7f8;overflow:hidden;border:1px solid #d9e9e8}.scene-map:before{content:"";position:absolute;inset:24px;border:1px dashed #9bc8c7;border-radius:48% 42% 50% 44%;transform:rotate(-8deg)}.scene-map:after{content:"";position:absolute;width:65%;height:38%;left:17%;top:30%;border:3px solid #74bfc0;border-radius:50%;transform:rotate(-19deg)}.map-route{position:absolute;width:44%;height:45%;right:14%;top:18%;border-right:2px dashed var(--blue);border-bottom:2px dashed var(--blue);border-radius:0 0 80% 0;transform:rotate(22deg)}.map-pin{position:absolute;width:39px;height:39px;border-radius:50%;background:#fff;border:2px solid var(--blue);display:grid;place-items:center;color:var(--blue);box-shadow:0 6px 15px rgba(22,119,210,.18);font-size:13px}.pin1{left:23%;top:28%}.pin2{right:23%;top:30%;border-color:var(--teal);color:var(--teal)}.pin3{left:42%;bottom:19%;border-color:var(--orange);color:var(--orange)}
    .scene-list{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}.scene-tag{border:1px solid var(--line);padding:9px 12px;border-radius:10px;color:var(--ink-2);font-size:14px;font-weight:600;background:#fff}.scene-tag i{color:var(--teal);margin-right:6px}.scene-detail{padding:16px;border-radius:13px;background:var(--pale);margin-top:13px;font-size:14px;color:var(--ink-2)}.scene-detail b{color:var(--blue)}
    .category-entry{margin-top:26px;padding:19px;background:#f1f8fb;border-radius:14px;border:1px solid #d9eaf1}.category-entry strong{display:block;margin-bottom:11px}.category-links{display:flex;flex-wrap:wrap;gap:8px}.category-links a{font-size:13px;background:#fff;color:var(--blue);border:1px solid #cce1ee;padding:6px 10px;border-radius:8px;transition:.2s}.category-links a:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
    .news-section{background:var(--pale)}.news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;margin-top:43px}.news-feature{background:#fff;border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}.news-feature img{width:100%;height:238px;object-fit:cover}.news-feature-body{padding:24px}.news-date{font-size:12px;color:var(--teal);font-weight:800}.news-feature h3{font-size:22px;font-weight:800;line-height:1.45;margin:8px 0}.news-feature p{font-size:14px;color:var(--muted);margin:0}.news-list{background:#fff;border-radius:18px;padding:7px 24px;box-shadow:var(--shadow)}.news-item{padding:19px 0;border-bottom:1px solid var(--line)}.news-item:last-child{border-bottom:none}.news-item h3{font-size:16px;font-weight:800;line-height:1.5;margin:0 0 5px}.news-item p{font-size:13px;color:var(--muted);margin:0}.news-more{color:var(--blue);font-weight:700;font-size:14px;margin-top:18px;display:inline-flex;gap:8px;align-items:center}
    .metrics-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:35px;margin-top:43px;align-items:center}.metric-panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:var(--shadow)}.metric-row{margin-bottom:22px}.metric-row:last-child{margin-bottom:0}.metric-head{display:flex;justify-content:space-between;gap:12px;font-size:14px;margin-bottom:8px}.metric-head b{color:var(--ink)}.metric-head span{color:var(--blue);font-weight:800}.metric-progress{height:9px;border-radius:10px;background:#e6f0f3;overflow:hidden}.metric-progress i{height:100%;display:block;border-radius:10px;background:linear-gradient(90deg,var(--blue),#5ab7d9)}.metric-note{padding:22px 0;border-bottom:1px solid var(--line)}.metric-note:last-child{border-bottom:none}.metric-note h3{font-size:18px;margin:0 0 6px;font-weight:800}.metric-note p{font-size:14px;color:var(--muted);margin:0}.metric-note i{color:var(--teal);margin-right:8px}
    .faq-section{background:#fff}.accordion{margin-top:39px}.accordion-item{border:1px solid var(--line)!important;border-radius:13px!important;overflow:hidden;margin-bottom:12px;box-shadow:0 5px 13px rgba(24,67,83,.04)}.accordion-button{font-weight:800;font-size:16px;color:var(--ink);padding:19px 21px;background:#fff;box-shadow:none!important}.accordion-button:not(.collapsed){color:var(--blue);background:#f1f8fc}.accordion-button:after{background-size:15px}.accordion-body{padding:0 21px 20px;color:var(--muted);font-size:14px;line-height:1.8}.faq-tip{display:inline-block;margin-top:9px;color:#37766d;background:var(--green-soft);padding:3px 8px;border-radius:6px;font-size:12px}
    .contact-section{padding:95px 0 110px;background:#f4f9fb}.contact-wrap{border-radius:23px;background:#fff;box-shadow:var(--shadow);padding:46px;display:grid;grid-template-columns:.9fr 1.1fr;gap:58px;border:1px solid #e1edf1}.contact-tags{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0}.contact-tags span{font-size:13px;background:var(--blue-soft);color:var(--blue);padding:7px 10px;border-radius:7px;font-weight:700}.response-box{display:flex;gap:12px;padding:15px 0;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}.response-box i{color:var(--teal);font-size:18px;margin-top:4px}.form-control,.form-select{border:1px solid #d6e4ea;border-radius:10px;padding:12px 13px;color:var(--ink);background:#fff;box-shadow:none}.form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(22,119,210,.11)}.form-label{font-weight:700;font-size:14px;margin-bottom:6px}.form-check-label{font-size:13px;color:var(--muted)}.form-check-input:checked{background-color:var(--blue);border-color:var(--blue)}.form-feedback{display:none;margin-top:12px;padding:11px 13px;border-radius:9px;background:var(--green-soft);color:#36746b;font-size:14px}
    footer{background:#0b2b37;color:#c6d9de;padding:65px 0 22px}.footer-brand{color:#fff;font-size:22px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:13px}.footer-brand .brand-mark{width:32px;height:32px}.footer-copy{font-size:14px;max-width:340px;color:#a9c3cb}.footer-heading{font-size:14px;color:#fff;font-weight:800;margin:6px 0 15px}.footer-links{padding:0;margin:0;list-style:none}.footer-links li{margin:7px 0}.footer-links a{font-size:14px;color:#bdd1d7;transition:.2s}.footer-links a:hover{color:#80ddcf}.footer-contact{font-size:14px;color:#bdd1d7}.footer-contact p{margin:0 0 8px}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:45px;padding-top:18px;font-size:13px;color:#8fabb4;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}.footer-bottom a{color:#a9c9cf}
    @media(max-width:991.98px){
      .navbar-collapse{background:#fff;margin-top:10px;padding:12px;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
      .navbar-nav{gap:2px}.navbar-nav .nav-link{padding:11px 12px!important}.nav-cta{margin:10px 0 2px;width:100%;justify-content:center}
      .hero .carousel,.hero .carousel-inner,.hero .carousel-item,.hero-slide{height:580px}.hero-content{padding-top:45px}.pain-grid{grid-template-columns:1fr 1fr}.pain-item:nth-child(2),.pain-item:nth-child(4){transform:none}.pressure-line{display:none}
      .advantage-grid{grid-template-columns:1fr 1fr}.adv-card.featured{grid-column:span 2}.adv-card:nth-child(2),.adv-card:nth-child(5){margin-top:0}.service-grid{grid-template-columns:1fr 1fr}.service-card:first-child{grid-column:span 2;height:400px}.service-card{height:350px}.process-track{grid-template-columns:repeat(5,1fr)}.process-step{padding:0 8px}.step-node{width:72px;height:72px;font-size:23px}.process-track:before{top:36px}.story-card{grid-template-columns:130px 1fr}.contact-wrap{gap:32px;padding:34px}
    }
    @media(max-width:767.98px){
      .topline-inner{min-height:34px}.top-pills span+span{display:none}.top-contact span{display:none}.top-contact .quick-consult{display:inline-block}
      section{padding:64px 0}.site-container{padding:0 17px}.hero .carousel,.hero .carousel-inner,.hero .carousel-item,.hero-slide{height:585px}.hero-slide{background-position:64% center}.hero-content{padding:44px 0 95px}h1{font-size:34px}.hero-copy{font-size:15px;line-height:1.8}.hero-control{right:17px;bottom:18px}.hero-meta{bottom:19px}.hero-meta-inner{max-width:220px}.hero-meta span{font-size:11px;padding:5px 8px}
      .pain-grid,.advantage-grid,.service-grid,.story-grid,.stats-grid,.news-layout,.metrics-grid,.contact-wrap{grid-template-columns:1fr}.solution-grid{margin-top:32px}.image-frame,.image-frame img{min-height:300px;height:300px}.process-track{display:block;margin:35px 0 0 28px;border-left:1px solid #b8d6df}.process-track:before{display:none}.process-step{padding:0 0 28px 36px;position:relative}.process-step:nth-child(2),.process-step:nth-child(4){padding-top:0}.step-node{position:absolute;left:-36px;top:0;width:71px;height:71px;margin:0}.process-step h3{padding-top:12px}.adv-card.featured{grid-column:span 1}.adv-card{min-height:auto}.service-card:first-child{grid-column:auto;height:365px}.service-card{height:335px}.case-image{height:330px;margin-bottom:35px}.story-card:nth-child(even){transform:none}.story-card{grid-template-columns:116px 1fr}.story-body{padding:17px}.story-card img{min-height:220px}.stats-grid{gap:0}.stat-item{padding:17px 0 17px 20px}.scene-map{min-height:315px;margin-bottom:30px}.contact-wrap{padding:25px}.contact-section{padding-bottom:70px}.footer-bottom{display:block}.footer-bottom div+div{margin-top:7px}
    }
    @media(max-width:520px){
      .navbar-brand{font-size:17px;margin-right:0}.brand-mark{width:31px;height:31px}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions .btn-main,.hero-actions .btn-outline{width:100%}.section-title{font-size:28px}.pain-grid{grid-template-columns:1fr}.pain-item{padding:19px}.story-card{grid-template-columns:1fr}.story-card img{height:180px;min-height:0}.case-data{display:block}.case-data span{display:inline-block;margin:3px;width:calc(50% - 8px)}.contact-wrap{padding:21px 17px}.hero-meta span:nth-child(3){display:none}.footer-brand{font-size:19px}
    }
    @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* roulang page: category1 */
:root{
 --blue:#1677d2;--blue-dark:#075fae;--blue-soft:#eaf4ff;--ink:#102d3a;--ink-2:#304e5d;--muted:#69808c;
 --teal:#249c8a;--green-soft:#e6f5ef;--orange:#d98536;--warm:#fbfcfa;--pale:#f2f7fa;--line:#dce8ed;
 --white:#fff;--shadow:0 14px 38px rgba(26,66,83,.09);--shadow-hover:0 22px 46px rgba(20,81,108,.16);
 --radius:18px;--radius-sm:12px;--container:1240px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:115px}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:var(--warm);font-size:16px;line-height:1.75;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(22,119,210,.35);outline-offset:3px}
.site-container{max-width:var(--container);margin:auto;padding:0 22px}
.topline{background:#0d3949;color:#d9edef;font-size:13px}
.topline .site-container{height:36px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.top-pills,.top-contact{display:flex;align-items:center;gap:10px;white-space:nowrap}
.top-pills span{display:inline-flex;align-items:center;gap:6px}
.top-pills span+span:before{content:"";width:3px;height:3px;background:#7fc8bf;border-radius:50%;margin-right:10px}
.top-contact a{color:#fff;font-weight:700}
.main-header{position:sticky;top:0;z-index:1050;background:rgba(255,255,255,.97);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,232,237,.8)}
.nav-shell{min-height:76px;display:flex;align-items:center}
.navbar{width:100%;padding:0}
.navbar-brand{color:var(--ink)!important;font-size:20px;font-weight:800;letter-spacing:.02em;display:flex;align-items:center;gap:10px;margin-right:34px}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;display:inline-grid;place-items:center;font-size:15px;box-shadow:0 6px 14px rgba(22,119,210,.25)}
.navbar-nav{gap:3px}
.navbar-nav .nav-link{font-size:14px;color:var(--ink-2);font-weight:600;padding:10px!important;border-radius:8px;transition:.2s ease}
.navbar-nav .nav-link:hover,.navbar-nav .nav-link.active{color:var(--blue);background:var(--blue-soft)}
.navbar-toggler{border:1px solid var(--line);width:46px;height:46px;border-radius:12px;padding:0;color:var(--ink);box-shadow:none!important}
.navbar-toggler-icon{width:20px;height:15px;background:none;position:relative;display:inline-block;border-top:2px solid currentColor;border-bottom:2px solid currentColor}
.navbar-toggler-icon:after{content:"";position:absolute;left:0;right:0;top:5px;border-top:2px solid currentColor}
.btn-main,.btn-outline,.btn-lightline{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:none;border-radius:10px;padding:12px 18px;font-weight:700;font-size:15px;line-height:1.4;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn-main{background:var(--blue);color:#fff;box-shadow:0 8px 17px rgba(22,119,210,.22)}
.btn-main:hover{color:#fff;background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(22,119,210,.3)}
.btn-main:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--blue);border:1px solid #b6d6f2}
.btn-outline:hover{color:var(--blue-dark);border-color:var(--blue);background:var(--blue-soft);transform:translateY(-1px)}
.btn-lightline{border:1px solid rgba(255,255,255,.58);color:#fff;background:transparent}
.btn-lightline:hover{color:#fff;background:rgba(255,255,255,.1);transform:translateY(-1px)}
.nav-cta{margin-left:18px;padding:10px 15px;font-size:14px}
section{position:relative;padding:100px 0}
.section-eyebrow{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.section-eyebrow:before{content:"";width:18px;height:2px;background:var(--teal)}
.section-title{font-size:clamp(29px,3vw,39px);line-height:1.3;letter-spacing:-.025em;font-weight:800;color:var(--ink);margin:0 0 14px}
.section-desc{max-width:720px;color:var(--muted);font-size:16px;margin:0}
.category-hero{min-height:390px;display:flex;align-items:center;overflow:hidden;background:#143f50;position:relative;color:#fff}
.category-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,42,55,.92) 0%,rgba(12,54,68,.72) 46%,rgba(12,54,68,.22) 100%)}
.category-hero:after{content:"";position:absolute;width:460px;height:460px;border:1px solid rgba(143,222,211,.32);border-radius:50%;right:8%;top:-120px;box-shadow:0 0 0 42px rgba(143,222,211,.06),0 0 0 84px rgba(143,222,211,.04)}
.category-hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-4.webp') center/cover no-repeat}
.category-hero .site-container{position:relative;z-index:2;width:100%}
.breadcrumb{margin:0 0 22px;padding:0;background:none;font-size:14px}
.breadcrumb-item,.breadcrumb-item a{color:#c4e1e5}
.breadcrumb-item+.breadcrumb-item:before{color:#86b8c0}
.breadcrumb-item.active{color:#fff}
.category-hero h1{max-width:720px;margin:0 0 16px;font-size:clamp(36px,4.4vw,55px);font-weight:800;letter-spacing:-.04em;line-height:1.2}
.category-hero p{max-width:700px;margin:0;color:#d6eaed;font-size:17px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:27px}
.hero-tags span{border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.09);border-radius:99px;padding:6px 12px;font-size:13px;color:#effbfc}
.topic-nav{padding:24px 0;background:#fff;border-bottom:1px solid var(--line)}
.topic-nav-inner{display:flex;align-items:center;gap:13px;overflow:auto;padding-bottom:2px}
.topic-nav strong{font-size:14px;white-space:nowrap;color:var(--ink)}
.topic-nav a{white-space:nowrap;border:1px solid var(--line);border-radius:99px;padding:7px 13px;color:var(--ink-2);font-size:14px;font-weight:600;transition:.2s}
.topic-nav a:hover{background:var(--blue-soft);border-color:#b7d9f4;color:var(--blue)}
.content-list-section{background:var(--warm)}
.planning-list{margin-top:45px;border-top:1px solid var(--line)}
.planning-item{display:grid;grid-template-columns:245px 1fr auto;gap:26px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line)}
.planning-image{height:158px;border-radius:14px;overflow:hidden;background:var(--pale)}
.planning-image img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.planning-item:hover .planning-image img{transform:scale(1.05)}
.planning-body h3{font-size:21px;line-height:1.4;margin:0 0 8px;font-weight:800}
.planning-body p{margin:0 0 12px;color:var(--muted);font-size:15px;line-height:1.75}
.field-tags{display:flex;flex-wrap:wrap;gap:7px}
.field-tags span{padding:4px 9px;border-radius:7px;font-size:12px;color:#397087;background:#eef7f7}
.list-more{font-size:14px;font-weight:800;color:var(--blue);white-space:nowrap;padding:8px 0}
.list-more i{margin-left:5px;transition:transform .2s}
.list-more:hover{color:var(--blue-dark)}
.list-more:hover i{transform:translateX(4px)}
.method-section{background:var(--pale);overflow:hidden}
.method-rail{position:relative;margin-top:48px;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.method-rail:before{content:"";position:absolute;top:37px;left:8%;right:8%;height:1px;background:#b8d6e5}
.method-step{position:relative;padding:0 8px}
.step-num{position:relative;z-index:1;width:74px;height:74px;display:grid;place-items:center;border-radius:50%;background:#fff;border:1px solid #b9d9ec;color:var(--blue);font-weight:800;font-size:21px;box-shadow:0 8px 22px rgba(39,90,111,.08)}
.method-step:nth-child(even) .step-num{border-color:#a7d8cf;color:var(--teal)}
.method-step h3{margin:19px 0 8px;font-size:18px;font-weight:800}
.method-step p{color:var(--muted);font-size:14px;line-height:1.7;margin:0}
.capability-section{background:#fff}
.capability-grid{display:grid;grid-template-columns:1.25fr .85fr .9fr 1.1fr;gap:18px;margin-top:45px}
.capability-card{min-height:235px;padding:27px;border-radius:var(--radius);background:var(--pale);border:1px solid #e5eef2;transition:.25s}
.capability-card:nth-child(1){background:#103d4d;color:#fff}
.capability-card:nth-child(2){background:var(--blue-soft)}
.capability-card:nth-child(3){background:#f6faf7}
.capability-card:nth-child(4){background:#fff8ef}
.capability-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.capability-icon{width:43px;height:43px;border-radius:12px;background:rgba(22,119,210,.12);color:var(--blue);display:grid;place-items:center;font-size:18px;margin-bottom:20px}
.capability-card:first-child .capability-icon{background:rgba(255,255,255,.13);color:#90e2d5}
.capability-card h3{font-size:20px;font-weight:800;line-height:1.4;margin:0 0 10px}
.capability-card p{margin:0;color:var(--muted);font-size:14px;line-height:1.75}
.capability-card:first-child p{color:#cbe2e6}
.scenes-section{background:var(--warm)}
.scene-layout{margin-top:43px;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.venue-map{min-height:370px;border-radius:var(--radius);background:#e8f3f6;position:relative;overflow:hidden;border:1px solid #d5e8ed}
.venue-map:before{content:"";position:absolute;width:410px;height:410px;border:2px dashed #8fc6c8;border-radius:50%;left:50%;top:50%;transform:translate(-50%,-50%)}
.venue-map:after{content:"";position:absolute;inset:30px;border:1px solid rgba(22,119,210,.2);border-radius:12px}
.map-line{position:absolute;z-index:1;background:var(--blue);height:3px;border-radius:99px;transform-origin:left center}
.map-line.one{width:52%;left:20%;top:38%;transform:rotate(25deg)}
.map-line.two{width:45%;left:35%;top:57%;transform:rotate(-46deg);background:var(--teal)}
.map-node{position:absolute;z-index:2;width:14px;height:14px;background:#fff;border:4px solid var(--blue);border-radius:50%;box-shadow:0 0 0 5px rgba(22,119,210,.13)}
.map-node.a{left:25%;top:34%}.map-node.b{left:66%;top:53%;border-color:var(--teal)}.map-node.c{left:43%;top:69%;border-color:var(--orange)}
.scene-list{display:grid;gap:12px}
.scene-row{border-left:3px solid #b7d9ed;padding:12px 15px 12px 17px;background:#fff;border-radius:0 var(--radius-sm) var(--radius-sm) 0;box-shadow:0 5px 14px rgba(24,76,97,.04)}
.scene-row:nth-child(2){border-color:var(--teal)}.scene-row:nth-child(3){border-color:var(--orange)}
.scene-row h3{font-size:17px;font-weight:800;margin:0 0 3px}.scene-row p{font-size:14px;color:var(--muted);margin:0}
.data-section{background:#eff7fb}
.data-panel{margin-top:43px;background:#fff;border:1px solid #dcebf0;border-radius:var(--radius);box-shadow:var(--shadow);padding:12px}
.data-row{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:12px;align-items:stretch}
.data-cell{padding:23px 20px;border-radius:13px;background:#f8fbfc}
.data-cell:first-child{background:#eaf4ff}
.data-cell h3{font-size:15px;font-weight:800;margin:0 0 11px;color:var(--ink)}
.data-cell p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}
.data-label{display:inline-block;padding:4px 8px;background:#dff1ed;color:#177466;border-radius:6px;font-size:12px;font-weight:700;margin-bottom:10px}
.progress-line{height:7px;border-radius:99px;background:#dfecef;overflow:hidden;margin:12px 0}
.progress-line span{display:block;height:100%;border-radius:99px;background:var(--blue);width:72%}
.data-cell:nth-child(3) .progress-line span{background:var(--teal);width:58%}.data-cell:nth-child(4) .progress-line span{background:var(--orange);width:45%}
.faq-contact-section{background:#fff}
.faq-contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:start}
.accordion{margin-top:28px}
.accordion-item{border:1px solid var(--line);border-radius:13px!important;overflow:hidden;margin-bottom:11px;background:#fff}
.accordion-button{padding:17px 20px;font-size:16px;font-weight:800;color:var(--ink);background:#fff;box-shadow:none!important}
.accordion-button:not(.collapsed){background:var(--blue-soft);color:var(--blue)}
.accordion-button:after{background-size:15px}
.accordion-body{padding:0 20px 18px;color:var(--muted);font-size:14px;line-height:1.85}
.contact-strip{background:#103d4d;color:#fff;border-radius:var(--radius);padding:38px;position:sticky;top:106px;overflow:hidden}
.contact-strip:after{content:"";position:absolute;width:220px;height:220px;border:1px solid rgba(136,220,209,.25);border-radius:50%;right:-90px;bottom:-115px}
.contact-strip>*{position:relative;z-index:1}
.contact-strip .section-eyebrow{color:#8fe1d3}.contact-strip .section-eyebrow:before{background:#8fe1d3}
.contact-strip h2{font-size:30px;line-height:1.35;font-weight:800;margin:0 0 14px}
.contact-strip p{color:#c8dfe3;font-size:15px;margin:0 0 23px}
.contact-info{padding:13px 0;border-top:1px solid rgba(255,255,255,.15);font-size:14px;color:#e1f3f4}
.contact-info i{width:20px;color:#84d7ca}
footer{background:#0c303d;color:#c7dade;padding:72px 0 24px}
.footer-brand{color:#fff;font-size:22px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:17px}
.footer-copy{font-size:14px;line-height:1.85;margin:0;color:#adc8ce;max-width:340px}
.footer-heading{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-links{margin:0;padding:0;list-style:none}.footer-links li{margin:0 0 10px}
.footer-links a,.footer-contact a{font-size:14px;color:#b8d1d6;transition:.2s}.footer-links a:hover,.footer-contact a:hover{color:#8ee0d4}
.footer-contact p{font-size:14px;color:#b8d1d6;margin:0 0 9px;line-height:1.65}
.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:53px;padding-top:21px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;font-size:13px;color:#91afb6}
.footer-bottom a{color:#b8d1d6}.footer-bottom a:hover{color:#fff}
@media(max-width:1199px){.navbar-brand{margin-right:18px}.navbar-nav .nav-link{padding:9px 7px!important;font-size:13px}.nav-cta{margin-left:10px}.capability-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:991px){.topline .site-container{padding:0 18px}.top-pills span:last-child{display:none}.navbar-collapse{padding:15px 0 7px}.navbar-nav{padding:6px 0;gap:5px}.navbar-nav .nav-link{padding:12px!important}.nav-cta{margin:10px 0 4px;width:100%}.planning-item{grid-template-columns:205px 1fr}.planning-item .list-more{grid-column:2}.method-rail{grid-template-columns:repeat(3,1fr);row-gap:33px}.method-rail:before{display:none}.scene-layout,.faq-contact-grid{grid-template-columns:1fr;gap:35px}.contact-strip{position:relative;top:auto}.data-row{grid-template-columns:repeat(2,1fr)}}
@media(max-width:767px){section{padding:62px 0}.topline{display:none}.nav-shell{min-height:66px}.site-container{padding:0 18px}.category-hero{min-height:380px}.category-hero h1{font-size:35px}.category-hero p{font-size:15px}.planning-list{margin-top:30px}.planning-item{grid-template-columns:130px 1fr;gap:16px;padding:18px 0}.planning-image{height:112px}.planning-body h3{font-size:17px}.planning-body p{font-size:13px}.planning-item .list-more{grid-column:2;font-size:13px}.method-rail{grid-template-columns:1fr;margin-top:32px;gap:20px}.method-step{padding:0 0 0 88px;min-height:80px}.step-num{position:absolute;left:0;top:0;width:62px;height:62px;font-size:18px}.method-step:before{content:"";position:absolute;left:30px;top:62px;bottom:-20px;border-left:1px solid #b8d6e5}.method-step:last-child:before{display:none}.method-step h3{margin:0 0 5px}.capability-grid{grid-template-columns:1fr;gap:12px;margin-top:30px}.capability-card{min-height:auto;padding:23px}.venue-map{min-height:290px}.data-panel{padding:8px}.data-row{grid-template-columns:1fr;gap:8px}.contact-strip{padding:29px 24px}.contact-strip h2{font-size:26px}footer{padding-top:55px}.footer-bottom{margin-top:37px}}
@media(max-width:420px){.category-hero h1{font-size:31px}.hero-tags span{font-size:12px}.planning-item{grid-template-columns:1fr}.planning-image{height:175px}.planning-item .list-more{grid-column:auto}.section-title{font-size:28px}.topic-nav-inner{gap:8px}.topic-nav a{padding:6px 10px;font-size:13px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category2 */
:root{
 --blue:#1677d2;--blue-dark:#075fae;--blue-soft:#eaf4ff;--ink:#102d3a;--ink-2:#304e5d;
 --muted:#69808c;--teal:#249c8a;--green-soft:#e6f5ef;--orange:#d98536;--warm:#fbfcfa;
 --pale:#f2f7fa;--line:#dce8ed;--white:#fff;--shadow:0 14px 38px rgba(26,66,83,.09);
 --shadow-hover:0 22px 46px rgba(20,81,108,.16);--radius:18px;--radius-sm:12px;--container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;background:var(--warm);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(22,119,210,.35);outline-offset:3px}
.site-container{max-width:var(--container);margin:auto;padding:0 22px}
.topbar{background:#0d3b49;color:#d7ebee;font-size:13px}
.topbar-inner{height:36px;display:flex;justify-content:space-between;align-items:center;gap:20px}
.top-pills,.top-contact{display:flex;align-items:center;gap:10px;white-space:nowrap}
.top-pills span{display:inline-flex;align-items:center;gap:6px}
.top-pills span+span:before{content:"";width:3px;height:3px;background:#7fc8bf;border-radius:50%;margin-right:10px}
.top-contact a{color:#fff;font-weight:700}
.main-header{position:sticky;top:0;z-index:1050;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,232,237,.8)}
.nav-shell{min-height:76px;display:flex;align-items:center}
.navbar{width:100%;padding:0}
.navbar-brand{color:var(--ink)!important;font-size:20px;font-weight:800;letter-spacing:.02em;display:flex;align-items:center;gap:10px;margin-right:34px}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;display:inline-grid;place-items:center;font-size:15px;box-shadow:0 6px 14px rgba(22,119,210,.25)}
.navbar-nav{gap:3px}
.navbar-nav .nav-link{font-size:14px;color:var(--ink-2);font-weight:600;padding:10px 10px!important;border-radius:8px;transition:.2s ease}
.navbar-nav .nav-link:hover,.navbar-nav .nav-link.active{color:var(--blue);background:var(--blue-soft)}
.navbar-toggler{border:1px solid var(--line);width:46px;height:46px;border-radius:12px;padding:0;color:var(--ink);box-shadow:none!important}
.navbar-toggler-icon{width:20px;height:15px;background:none;position:relative;display:inline-block;border-top:2px solid currentColor;border-bottom:2px solid currentColor}
.navbar-toggler-icon:after{content:"";position:absolute;left:0;right:0;top:5px;border-top:2px solid currentColor}
.btn-main,.btn-outline,.btn-lightline{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:none;border-radius:10px;padding:12px 18px;font-weight:700;font-size:15px;line-height:1.4;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn-main{background:var(--blue);color:#fff;box-shadow:0 8px 17px rgba(22,119,210,.22)}
.btn-main:hover{color:#fff;background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(22,119,210,.3)}
.btn-main:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--blue);border:1px solid #b6d6f2}
.btn-outline:hover{color:var(--blue-dark);border-color:var(--blue);background:var(--blue-soft);transform:translateY(-1px)}
.btn-lightline{border:1px solid rgba(255,255,255,.58);color:#fff;background:transparent}
.btn-lightline:hover{color:#fff;background:rgba(255,255,255,.1);transform:translateY(-1px)}
.nav-cta{margin-left:18px;padding:10px 15px;font-size:14px}
section{position:relative;padding:100px 0}
.section-eyebrow{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.section-eyebrow:before{content:"";width:18px;height:2px;background:var(--teal)}
.section-title{font-size:clamp(29px,3vw,39px);line-height:1.32;letter-spacing:-.025em;font-weight:800;color:var(--ink);margin:0 0 14px}
.section-desc{max-width:720px;color:var(--muted);margin:0;font-size:16px}
.inner-hero{min-height:390px;position:relative;display:flex;align-items:center;overflow:hidden;background:#123f50;color:#fff}
.inner-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,38,50,.91),rgba(8,42,55,.67) 53%,rgba(8,42,55,.25))}
.inner-hero:after{content:"";position:absolute;width:480px;height:480px;border:1px solid rgba(123,221,207,.36);border-radius:50%;right:7%;bottom:-260px;box-shadow:0 0 0 42px rgba(123,221,207,.08),0 0 0 84px rgba(123,221,207,.05)}
.inner-hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat}
.hero-inner-content{position:relative;z-index:2;padding:66px 0}
.breadcrumb{margin:0 0 18px;font-size:14px;color:#c9e8ed}
.breadcrumb a{color:#fff}
.breadcrumb span{margin:0 8px;color:#81c7d0}
.hero-inner-content h1{font-size:clamp(34px,4.3vw,54px);line-height:1.18;letter-spacing:-.04em;font-weight:800;margin:0 0 18px}
.hero-inner-content p{max-width:720px;color:#d9edf0;font-size:17px;margin:0}
.hero-fields{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}
.hero-fields span{font-size:13px;padding:7px 12px;border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.09);border-radius:999px;color:#f1ffff}
.chapter-section{padding:34px 0;background:var(--white);border-bottom:1px solid var(--line)}
.chapter-nav{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.chapter-nav a{padding:9px 14px;border-radius:999px;font-size:14px;font-weight:700;border:1px solid var(--line);color:var(--ink-2);background:#fff;transition:.2s}
.chapter-nav a:hover{background:var(--blue-soft);border-color:#b9d9f5;color:var(--blue)}
.chapter-nav .chapter-label{font-size:14px;font-weight:800;color:var(--ink);margin-right:6px}
.list-section{background:var(--warm)}
.execution-list{margin-top:44px;display:grid;gap:18px}
.execution-item{display:grid;grid-template-columns:244px 1fr auto;gap:27px;align-items:center;padding:16px;background:#fff;border:1px solid #e5eef1;border-radius:var(--radius);box-shadow:0 8px 22px rgba(22,71,89,.045);transition:.25s ease}
.execution-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#cce2ef}
.execution-item img{width:244px;height:150px;object-fit:cover;border-radius:12px}
.item-index{font-size:12px;font-weight:800;color:var(--teal);letter-spacing:.1em}
.execution-item h3{font-size:21px;line-height:1.4;font-weight:800;margin:3px 0 7px}
.execution-item p{color:var(--muted);font-size:14px;line-height:1.75;margin:0 0 10px}
.tag-row{display:flex;gap:7px;flex-wrap:wrap}
.tag{font-size:12px;line-height:1;padding:7px 9px;border-radius:999px;background:var(--blue-soft);color:var(--blue-dark);font-weight:700}
.tag.teal{background:var(--green-soft);color:#137565}
.tag.orange{background:#fff3e8;color:#af651e}
.more-link{font-size:14px;font-weight:800;color:var(--blue);white-space:nowrap;display:inline-flex;align-items:center;gap:7px;padding:10px}
.more-link:hover{color:var(--blue-dark)}
.method-section{background:var(--pale);overflow:hidden}
.method-board{margin-top:46px;display:grid;grid-template-columns:1.05fr 1.95fr;gap:32px;align-items:stretch}
.method-intro{background:#113f50;color:#fff;border-radius:var(--radius);padding:36px;position:relative;overflow:hidden}
.method-intro:after{content:"";position:absolute;width:220px;height:220px;border:1px dashed rgba(139,225,210,.5);border-radius:50%;right:-85px;bottom:-100px}
.method-intro h3{font-size:25px;font-weight:800;position:relative;z-index:1;line-height:1.4}
.method-intro p{color:#cee2e7;font-size:14px;position:relative;z-index:1}
.method-intro .mini-note{position:relative;z-index:1;border-top:1px solid rgba(255,255,255,.16);padding-top:18px;color:#a9d9d4;font-size:13px}
.method-track{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px 26px;display:grid;gap:0}
.track-step{display:grid;grid-template-columns:62px 1fr;gap:18px;position:relative;padding:0 0 22px}
.track-step:last-child{padding-bottom:0}
.track-step:not(:last-child):before{content:"";position:absolute;left:22px;top:47px;bottom:2px;border-left:2px dashed #b9d9d5}
.step-no{width:46px;height:46px;border-radius:50%;background:var(--blue-soft);color:var(--blue);font-size:16px;font-weight:800;display:grid;place-items:center;border:1px solid #c8e3f7;position:relative;z-index:1}
.track-step:nth-child(3) .step-no{background:var(--green-soft);color:#167767;border-color:#c0e6da}
.track-step h4{font-size:17px;font-weight:800;margin:4px 0 3px}
.track-step p{font-size:14px;color:var(--muted);margin:0}
.capability-section{background:#fff}
.capability-grid{margin-top:45px;display:grid;grid-template-columns:1.35fr .85fr 1fr;grid-template-rows:auto auto;gap:18px}
.capability-card{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:var(--warm);min-height:190px;transition:.25s}
.capability-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c4deed}
.capability-card.large{grid-row:span 2;background:var(--blue);color:#fff;display:flex;flex-direction:column;justify-content:space-between}
.capability-card h3{font-size:20px;font-weight:800;line-height:1.4;margin:13px 0 8px}
.capability-card p{margin:0;font-size:14px;color:var(--muted)}
.capability-card.large p{color:#d9efff}
.cap-icon{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:var(--blue-soft);color:var(--blue);font-size:20px}
.capability-card.large .cap-icon{background:rgba(255,255,255,.15);color:#fff}
.cap-number{font-size:42px;line-height:1;font-weight:800;color:rgba(255,255,255,.34);margin-top:24px}
.scene-section{background:var(--pale)}
.scene-layout{margin-top:44px;display:grid;grid-template-columns:1.15fr .85fr;gap:42px;align-items:center}
.scene-map{min-height:385px;border-radius:var(--radius);position:relative;overflow:hidden;background:#d9edf0 url('/assets/images/coverpic/cover-8.webp') center/cover no-repeat}
.scene-map:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,59,74,.34),rgba(22,119,210,.08))}
.map-line{position:absolute;z-index:2;border:2px dashed rgba(255,255,255,.78);border-radius:50%;width:62%;height:40%;left:20%;top:30%;transform:rotate(-14deg)}
.map-dot{position:absolute;z-index:3;width:15px;height:15px;border-radius:50%;background:#fff;border:4px solid var(--teal);box-shadow:0 0 0 6px rgba(255,255,255,.24)}
.dot-a{left:29%;top:35%}.dot-b{left:58%;top:26%}.dot-c{left:68%;top:58%}.dot-d{left:38%;top:65%}
.scene-list{display:grid;gap:12px}
.scene-row{background:#fff;border:1px solid var(--line);padding:16px 18px;border-radius:13px;display:flex;gap:14px;align-items:flex-start;transition:.2s}
.scene-row:hover{border-color:#bcdcf0;box-shadow:0 8px 18px rgba(22,71,89,.06)}
.scene-row i{color:var(--teal);margin-top:5px}
.scene-row strong{display:block;font-size:16px}
.scene-row span{display:block;font-size:13px;color:var(--muted);margin-top:2px}
.data-section{background:var(--warm)}
.data-panel{margin-top:44px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:var(--radius);padding:10px;display:grid;grid-template-columns:1fr 1fr 1fr}
.data-cell{padding:27px 28px;border-right:1px solid var(--line)}
.data-cell:last-child{border-right:0}
.data-kicker{font-size:13px;color:var(--blue);font-weight:800}
.data-cell h3{font-size:20px;font-weight:800;margin:6px 0}
.data-cell p{font-size:14px;color:var(--muted);margin:0 0 13px}
.progress{height:8px;border-radius:999px;background:#e9f0f2;overflow:hidden}
.progress-bar{background:linear-gradient(90deg,var(--blue),var(--teal));border-radius:999px}
.data-field{font-size:12px;color:var(--ink-2);font-weight:700;margin-top:10px}
.faq-section{background:var(--pale);padding-bottom:52px}
.faq-wrap{margin-top:42px;max-width:900px}
.accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;background:#fff;margin-bottom:12px;box-shadow:none!important}
.accordion-button{padding:19px 20px;font-size:16px;font-weight:800;color:var(--ink)!important;background:#fff!important;box-shadow:none!important}
.accordion-button:not(.collapsed){background:var(--blue-soft)!important;color:var(--blue-dark)!important}
.accordion-button:after{background-size:15px}
.accordion-body{padding:0 20px 19px;color:var(--muted);font-size:14px}
.faq-tip{display:inline-flex;margin-top:10px;padding:4px 9px;background:var(--green-soft);border-radius:999px;color:#167767;font-size:12px;font-weight:700}
.contact-strip{background:#fff;padding:46px 0 72px}
.contact-box{background:linear-gradient(110deg,#eaf5ff,#f7fcfb);border:1px solid #cfe4ec;border-radius:var(--radius);padding:32px 38px;display:flex;justify-content:space-between;align-items:center;gap:28px}
.contact-box h2{font-size:27px;line-height:1.35;font-weight:800;margin:0 0 7px}
.contact-box p{font-size:14px;color:var(--muted);margin:0}
footer{background:#0d3541;color:#c8dde2;padding:72px 0 22px}
.footer-brand{font-size:21px;color:#fff;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-copy{font-size:14px;line-height:1.8;margin:0;max-width:330px}
.footer-heading{font-size:15px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin:8px 0}
.footer-links a,.footer-contact a{font-size:14px;color:#c8dde2;transition:.2s}
.footer-links a:hover,.footer-contact a:hover{color:#7ed5c9}
.footer-contact p{margin:0 0 7px;font-size:14px;line-height:1.65}
.footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(214,239,239,.16);display:flex;justify-content:space-between;gap:20px;font-size:13px;color:#9dbbc2}
.footer-bottom a:hover{color:#fff}
@media(max-width:1199px){
 .navbar-brand{margin-right:14px}.navbar-nav .nav-link{padding:9px 7px!important;font-size:13px}.nav-cta{margin-left:8px}
}
@media(max-width:991px){
 .topbar{display:none}.main-header{top:0}.navbar-collapse{padding:14px 0 18px}
 .navbar-nav{padding:8px 0;gap:4px}.navbar-nav .nav-link{padding:11px 13px!important;font-size:15px}
 .nav-cta{margin:10px 0 0;width:100%;min-height:48px}.inner-hero{min-height:350px}
 .execution-item{grid-template-columns:210px 1fr}.execution-item .more-link{grid-column:2;justify-self:start;padding:0}
 .method-board,.scene-layout{grid-template-columns:1fr}.capability-grid{grid-template-columns:1fr 1fr}.capability-card.large{grid-row:auto}.data-panel{grid-template-columns:1fr}
 .data-cell{border-right:0;border-bottom:1px solid var(--line)}.data-cell:last-child{border-bottom:0}
}
@media(max-width:767px){
 body{font-size:15px}.site-container{padding:0 18px}section{padding:65px 0}
 .inner-hero{min-height:330px}.hero-inner-content{padding:56px 0}.hero-inner-content p{font-size:15px}
 .chapter-section{padding:24px 0}.chapter-nav{gap:8px}.chapter-nav a{font-size:13px;padding:8px 11px}
 .execution-list{margin-top:32px}.execution-item{grid-template-columns:1fr;gap:14px;padding:13px}.execution-item img{width:100%;height:190px}
 .execution-item .more-link{grid-column:auto;padding:4px 0}.method-board{margin-top:30px;gap:18px}.method-intro{padding:27px}
 .capability-grid{margin-top:30px;grid-template-columns:1fr}.capability-card{min-height:auto;padding:23px}
 .scene-layout{margin-top:30px;gap:25px}.scene-map{min-height:280px}.data-panel{margin-top:30px}.data-cell{padding:22px}
 .faq-wrap{margin-top:28px}.contact-box{padding:27px;display:block}.contact-box .btn-main{width:100%;margin-top:20px;min-height:48px}
 footer{padding-top:55px}.footer-bottom{display:block}.footer-bottom div+div{margin-top:8px}
}
@media(max-width:420px){
 .navbar-brand{font-size:18px}.brand-mark{width:32px;height:32px}.hero-inner-content h1{font-size:33px}
 .section-title{font-size:28px}.chapter-nav a{font-size:12px}.track-step{grid-template-columns:52px 1fr;gap:12px}
 .method-track{padding:22px 17px}.contact-box{padding:23px 19px}
}
@media(prefers-reduced-motion:reduce){
 *,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:.01ms!important}
}

/* roulang page: category3 */
:root{
 --blue:#1677d2;--blue-dark:#075fae;--blue-soft:#eaf4ff;--ink:#102d3a;--ink-2:#304e5d;--muted:#69808c;
 --teal:#249c8a;--green-soft:#e6f5ef;--orange:#d98536;--warm:#fbfcfa;--pale:#f2f7fa;--line:#dce8ed;
 --white:#fff;--shadow:0 14px 38px rgba(26,66,83,.09);--shadow-hover:0 22px 46px rgba(20,81,108,.16);
 --radius:18px;--radius-sm:12px;--container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:var(--warm);font-size:16px;line-height:1.75;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(22,119,210,.35);outline-offset:3px}
.site-container{max-width:var(--container);margin:auto;padding:0 22px}
.topbar{background:#103745;color:#d6eaee;font-size:12px}
.topbar-inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.top-pills,.top-contact{display:flex;align-items:center;gap:10px;white-space:nowrap}
.top-pills span{display:inline-flex;align-items:center;gap:6px}
.top-pills span+span:before{content:"";width:3px;height:3px;background:#7fc8bf;border-radius:50%;margin-right:10px}
.top-contact a{color:#fff;font-weight:700;transition:color .2s}
.top-contact a:hover{color:#85ded1}
.main-header{position:sticky;top:0;z-index:1050;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,232,237,.8)}
.nav-shell{min-height:76px;display:flex;align-items:center}
.navbar{width:100%;padding:0}
.navbar-brand{color:var(--ink)!important;font-size:20px;font-weight:800;letter-spacing:.02em;display:flex;align-items:center;gap:10px;margin-right:34px}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;display:inline-grid;place-items:center;font-size:15px;box-shadow:0 6px 14px rgba(22,119,210,.25)}
.navbar-nav{gap:3px}
.navbar-nav .nav-link{font-size:14px;color:var(--ink-2);font-weight:600;padding:10px 10px!important;border-radius:8px;transition:.2s ease}
.navbar-nav .nav-link:hover,.navbar-nav .nav-link.active{color:var(--blue);background:var(--blue-soft)}
.navbar-toggler{border:1px solid var(--line);width:46px;height:46px;border-radius:12px;padding:0;color:var(--ink);box-shadow:none!important}
.navbar-toggler-icon{width:20px;height:15px;background:none;position:relative;display:inline-block;border-top:2px solid currentColor;border-bottom:2px solid currentColor}
.navbar-toggler-icon:after{content:"";position:absolute;left:0;right:0;top:5px;border-top:2px solid currentColor}
.btn-main,.btn-outline,.btn-lightline{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:none;border-radius:10px;padding:12px 18px;font-weight:700;font-size:15px;line-height:1.4;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn-main{background:var(--blue);color:#fff;box-shadow:0 8px 17px rgba(22,119,210,.22)}
.btn-main:hover{color:#fff;background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(22,119,210,.3)}
.btn-main:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--blue);border:1px solid #b6d6f2}
.btn-outline:hover{color:var(--blue-dark);border-color:var(--blue);background:var(--blue-soft);transform:translateY(-1px)}
.nav-cta{margin-left:18px;padding:10px 15px;font-size:14px}
section{position:relative;padding:98px 0}
.section-eyebrow{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.section-eyebrow:before{content:"";width:18px;height:2px;background:var(--teal)}
.section-title{font-size:clamp(29px,3.2vw,40px);line-height:1.3;letter-spacing:-.025em;font-weight:800;color:var(--ink);margin:0 0 15px}
.section-desc{max-width:760px;color:var(--muted);font-size:16px;margin:0}
.inner-hero{min-height:370px;display:flex;align-items:center;position:relative;overflow:hidden;background:#123d4c url('/assets/images/backpic/back-3.webp') center/cover no-repeat}
.inner-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,37,50,.91),rgba(10,53,68,.77) 48%,rgba(14,69,84,.3))}
.inner-hero:after{content:"";position:absolute;width:460px;height:460px;border:1px solid rgba(131,221,207,.28);border-radius:50%;right:8%;top:-210px;box-shadow:0 0 0 45px rgba(131,221,207,.06),0 0 0 90px rgba(131,221,207,.04)}
.hero-inner-content{position:relative;z-index:1;padding:66px 0}
.breadcrumb{margin:0 0 18px;padding:0;background:none;font-size:13px}
.breadcrumb-item,.breadcrumb-item a{color:#c7e7ea}
.breadcrumb-item.active{color:#fff}
.breadcrumb-item+.breadcrumb-item:before{color:#85c7c7}
.inner-hero h1{color:#fff;max-width:780px;font-size:clamp(34px,4.5vw,52px);font-weight:800;letter-spacing:-.04em;line-height:1.22;margin:0 0 17px}
.inner-hero p{color:#d7edf0;max-width:730px;margin:0;font-size:17px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:25px}
.hero-tags span,.tag{display:inline-flex;align-items:center;gap:5px;border-radius:999px;font-size:13px;font-weight:700}
.hero-tags span{padding:6px 11px;color:#e9fbf8;background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.18)}
.topic-nav{padding:28px 0;background:#fff;border-bottom:1px solid var(--line)}
.topic-links{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.topic-links span{font-size:13px;color:var(--muted);font-weight:700;margin-right:4px}
.topic-links a{padding:8px 13px;border:1px solid var(--line);border-radius:999px;color:var(--ink-2);font-size:14px;font-weight:700;transition:.2s}
.topic-links a:hover{background:var(--blue-soft);border-color:#b6d6f2;color:var(--blue)}
.content-area{background:var(--warm)}
.digital-list{margin-top:48px;display:grid;gap:18px}
.digital-item{display:grid;grid-template-columns:260px 1fr auto;gap:25px;align-items:center;padding:14px;background:#fff;border:1px solid #e3ecef;border-radius:var(--radius);box-shadow:0 5px 20px rgba(30,79,96,.04);transition:.25s}
.digital-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cbe1e8}
.digital-thumb{height:165px;border-radius:12px;overflow:hidden}
.digital-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.digital-item:hover .digital-thumb img{transform:scale(1.04)}
.digital-item h3{font-size:20px;font-weight:800;margin:0 0 7px;line-height:1.45}
.digital-item p{margin:0 0 12px;color:var(--muted);font-size:14px;line-height:1.75}
.tag{padding:4px 9px;background:var(--blue-soft);color:var(--blue)}
.tag.green{background:var(--green-soft);color:#177b69}
.tag.orange{background:#fff2e5;color:#a95b1e}
.item-action{white-space:nowrap;color:var(--blue);font-size:14px;font-weight:800;padding:10px 13px;border-radius:9px;transition:.2s}
.item-action:hover{background:var(--blue-soft);color:var(--blue-dark)}
.method-section{background:var(--pale);overflow:hidden}
.method-board{margin-top:45px;background:#fff;border:1px solid #ddebf0;border-radius:22px;padding:35px;box-shadow:var(--shadow)}
.method-track{display:grid;grid-template-columns:repeat(5,1fr);position:relative;gap:14px}
.method-track:before{content:"";position:absolute;top:30px;left:8%;right:8%;border-top:2px dashed #bcd6e2}
.method-step{position:relative;z-index:1}
.step-no{width:61px;height:61px;border-radius:50%;display:grid;place-items:center;background:#fff;border:2px solid #a9d1e5;color:var(--blue);font-weight:800;font-size:20px;margin-bottom:17px}
.method-step:nth-child(2) .step-no,.method-step:nth-child(4) .step-no{background:var(--blue);border-color:var(--blue);color:#fff}
.method-step h3{font-size:17px;font-weight:800;margin:0 0 7px}
.method-step p{font-size:13px;color:var(--muted);line-height:1.7;margin:0;max-width:190px}
.capability-grid{margin-top:46px;display:grid;grid-template-columns:1.25fr .85fr .9fr 1.1fr;gap:18px}
.capability-card{padding:28px;border-radius:var(--radius);border:1px solid var(--line);background:#fff;min-height:245px;transition:.25s}
.capability-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.capability-card.feature{background:#123d4c;color:#fff;border-color:#123d4c}
.capability-icon{height:46px;width:46px;display:grid;place-items:center;border-radius:12px;background:var(--blue-soft);color:var(--blue);font-size:20px;margin-bottom:22px}
.feature .capability-icon{background:rgba(123,223,208,.15);color:#8de4d6}
.capability-card h3{font-size:20px;font-weight:800;margin:0 0 9px}
.capability-card p{font-size:14px;color:var(--muted);line-height:1.75;margin:0}
.feature p{color:#c8e3e5}
.scene-section{background:#fff}
.scene-layout{margin-top:44px;display:grid;grid-template-columns:1.02fr .98fr;gap:46px;align-items:center}
.map-panel{height:390px;background:#e9f5f7;border-radius:22px;position:relative;overflow:hidden;border:1px solid #d2e7e9}
.map-panel:before{content:"";position:absolute;width:560px;height:260px;border:2px solid #80c4cc;border-radius:50%;left:-90px;top:72px;transform:rotate(-18deg)}
.map-panel:after{content:"";position:absolute;width:320px;height:320px;border:1px dashed #69b7b0;border-radius:50%;right:-90px;bottom:-120px}
.route{position:absolute;height:2px;background:var(--blue);transform-origin:left center;z-index:1}
.r1{width:220px;top:122px;left:105px;transform:rotate(17deg)}.r2{width:175px;top:185px;left:292px;transform:rotate(105deg)}.r3{width:170px;top:292px;left:250px;transform:rotate(163deg)}
.map-node{position:absolute;z-index:2;width:19px;height:19px;background:var(--teal);border:4px solid #fff;border-radius:50%;box-shadow:0 2px 9px rgba(10,86,91,.25)}
.n1{top:113px;left:96px}.n2{top:174px;left:304px}.n3{top:284px;left:238px}.n4{top:230px;left:115px}
.map-label{position:absolute;z-index:2;padding:5px 9px;background:#fff;border-radius:7px;box-shadow:0 5px 13px rgba(33,81,92,.12);font-size:12px;color:var(--ink-2);font-weight:700}
.l1{top:76px;left:82px}.l2{top:143px;left:316px}.l3{top:298px;left:126px}
.scene-list{display:grid;gap:11px}
.scene-row{padding:15px 17px;border-bottom:1px solid var(--line);display:flex;gap:15px;align-items:flex-start}
.scene-row:last-child{border-bottom:0}
.scene-row i{color:var(--teal);margin-top:5px}
.scene-row strong{display:block;font-size:16px;margin-bottom:2px}
.scene-row span{display:block;color:var(--muted);font-size:13px;line-height:1.65}
.data-section{background:var(--pale)}
.data-board{margin-top:45px;background:#fff;border-radius:22px;padding:34px;box-shadow:var(--shadow);border:1px solid #dfebef}
.data-col{padding:8px 26px;border-right:1px solid var(--line)}
.data-col:last-child{border-right:none}
.data-label{display:flex;justify-content:space-between;gap:10px;font-size:14px;font-weight:800;margin-bottom:10px}
.data-label span:last-child{color:var(--blue)}
.progress{height:9px;border-radius:9px;background:#e6f0f4;overflow:hidden}
.progress-bar{background:linear-gradient(90deg,var(--blue),#4aa6dc);border-radius:9px}
.data-note{font-size:13px;color:var(--muted);margin:12px 0 0}
.record-list{margin:26px 0 0;padding:20px 0 0;border-top:1px solid var(--line);display:flex;gap:16px;flex-wrap:wrap}
.record-list div{font-size:13px;color:var(--ink-2);padding:7px 11px;border-radius:8px;background:var(--pale)}
.record-list i{color:var(--teal);margin-right:6px}
.faq-contact{background:#fff}
.accordion{margin-top:40px}
.accordion-item{border:1px solid var(--line);border-radius:14px!important;overflow:hidden;margin-bottom:12px;background:#fff}
.accordion-button{padding:19px 21px;font-weight:800;color:var(--ink);font-size:16px;box-shadow:none!important;background:#fff}
.accordion-button:not(.collapsed){background:var(--blue-soft);color:var(--blue)}
.accordion-button:after{background-size:15px}
.accordion-body{padding:0 21px 20px;color:var(--muted);font-size:14px;line-height:1.85}
.contact-strip{margin-top:44px;padding:30px 34px;border-radius:20px;background:#123d4c;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:24px}
.contact-strip h2{font-size:25px;margin:0 0 5px;font-weight:800}
.contact-strip p{margin:0;color:#cce4e7;font-size:14px}
footer{background:#0d2d38;color:#bcd3d8;padding:72px 0 20px}
.footer-brand{color:#fff;font-size:21px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:15px}
.footer-copy{font-size:14px;line-height:1.9;max-width:330px;margin:0}
.footer-heading{font-weight:800;color:#fff;font-size:15px;margin-bottom:18px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin:9px 0}
.footer-links a,.footer-contact a{font-size:14px;transition:color .2s}
.footer-links a:hover,.footer-contact a:hover{color:#82ddd0}
.footer-contact p{font-size:14px;margin:0 0 8px;line-height:1.7}
.footer-bottom{margin-top:49px;padding-top:20px;border-top:1px solid rgba(201,229,230,.16);display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:13px;color:#97b7be}
.footer-bottom a:hover{color:#fff}
@media(max-width:991.98px){
 .navbar-brand{margin-right:0}.navbar-collapse{padding:15px 0 10px}.navbar-nav{padding:8px 0;gap:3px}.navbar-nav .nav-link{padding:11px 12px!important}.nav-cta{margin:8px 0 0;width:100%;min-height:46px}
 .digital-item{grid-template-columns:210px 1fr}.item-action{grid-column:2;justify-self:start;padding:0}
 .capability-grid{grid-template-columns:1fr 1fr}.capability-card.feature{grid-column:span 2}.scene-layout{gap:28px}
 .data-col{padding:12px 14px}.topbar-inner{font-size:11px}
}
@media(max-width:767.98px){
 section{padding:66px 0}.topbar{display:none}.main-header{top:0}.nav-shell{min-height:68px}.site-container{padding:0 18px}
 .inner-hero{min-height:345px}.hero-inner-content{padding:58px 0}.inner-hero p{font-size:15px}.inner-hero:after{right:-210px}
 .topic-nav{padding:18px 0}.topic-links{flex-wrap:nowrap;overflow-x:auto;padding-bottom:3px}.topic-links::-webkit-scrollbar{height:0}.topic-links span{display:none}.topic-links a{white-space:nowrap}
 .digital-list{margin-top:32px}.digital-item{grid-template-columns:1fr;gap:15px;padding:12px}.digital-thumb{height:205px}.item-action{grid-column:auto;padding:4px 0}
 .method-board{margin-top:32px;padding:25px 21px}.method-track{grid-template-columns:1fr;gap:24px}.method-track:before{top:35px;bottom:35px;left:29px;right:auto;border-top:0;border-left:2px dashed #bcd6e2}.method-step{padding-left:78px}.step-no{position:absolute;left:0;top:0;margin:0;width:59px;height:59px}.method-step p{max-width:none}
 .capability-grid{margin-top:32px;grid-template-columns:1fr}.capability-card.feature{grid-column:auto}.scene-layout{margin-top:32px;grid-template-columns:1fr}.map-panel{height:330px}.data-board{margin-top:32px;padding:20px}.data-col{border-right:0;border-bottom:1px solid var(--line);padding:16px 2px}.data-col:last-child{border-bottom:0}.contact-strip{margin-top:32px;padding:28px 23px;display:block}.contact-strip .btn-main{margin-top:20px;width:100%;min-height:48px}
 footer{padding-top:58px}.footer-bottom{margin-top:28px}
}
@media(max-width:520px){
 body{font-size:15px}.navbar-brand{font-size:18px}.brand-mark{width:32px;height:32px}.inner-hero h1{font-size:32px}.section-title{font-size:28px}
 .hero-tags span{font-size:12px}.digital-item h3{font-size:18px}.capability-card{min-height:auto;padding:24px}.map-label{font-size:11px}.r1{width:175px;left:58px}.r2{left:207px}.n1{left:49px}.n2{left:219px}.n3{left:163px}.n4{left:68px}.l1{left:33px}.l2{left:210px}.l3{left:74px}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category4 */
:root{
--blue:#1677d2;--blue-dark:#075fae;--blue-soft:#eaf4ff;--ink:#102d3a;--ink-2:#304e5d;--muted:#69808c;--teal:#249c8a;--green-soft:#e6f5ef;--orange:#d98536;--warm:#fbfcfa;--pale:#f2f7fa;--line:#dce8ed;--white:#fff;--shadow:0 14px 38px rgba(26,66,83,.09);--shadow-hover:0 22px 46px rgba(20,81,108,.16);--radius:18px;--radius-sm:12px;--container:1240px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:116px}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:var(--warm);font-size:16px;line-height:1.75;overflow-x:hidden}
a{text-decoration:none;color:inherit}img{max-width:100%;display:block}button,input,select,textarea{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(22,119,210,.35);outline-offset:3px}
.site-container{max-width:var(--container);margin:auto;padding:0 22px}
.top-strip{background:#103745;color:#d9f1f0;font-size:13px;height:35px;display:flex;align-items:center}
.top-inner{display:flex;align-items:center;justify-content:space-between;width:100%;gap:15px}
.top-pills,.top-contact{display:flex;align-items:center;gap:10px;white-space:nowrap}.top-pills span{display:inline-flex;align-items:center;gap:6px}.top-pills span+span:before{content:"";width:3px;height:3px;background:#7fc8bf;border-radius:50%;margin-right:10px}.top-contact a{color:#fff;font-weight:700}
.main-header{position:sticky;top:0;z-index:1050;background:rgba(255,255,255,.97);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,232,237,.8)}
.nav-shell{min-height:76px;display:flex;align-items:center}.navbar{width:100%;padding:0}
.navbar-brand{color:var(--ink)!important;font-size:20px;font-weight:800;letter-spacing:.02em;display:flex;align-items:center;gap:10px;margin-right:34px}.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;display:inline-grid;place-items:center;font-size:15px;box-shadow:0 6px 14px rgba(22,119,210,.25)}
.navbar-nav{gap:3px}.navbar-nav .nav-link{font-size:14px;color:var(--ink-2);font-weight:600;padding:10px 10px!important;border-radius:8px;transition:.2s ease}.navbar-nav .nav-link:hover,.navbar-nav .nav-link.active{color:var(--blue);background:var(--blue-soft)}
.navbar-toggler{border:1px solid var(--line);width:46px;height:46px;border-radius:12px;padding:0;color:var(--ink);box-shadow:none!important}.navbar-toggler-icon{width:20px;height:15px;background:none;position:relative;display:inline-block;border-top:2px solid currentColor;border-bottom:2px solid currentColor}.navbar-toggler-icon:after{content:"";position:absolute;left:0;right:0;top:5px;border-top:2px solid currentColor}
.btn-main,.btn-outline,.btn-lightline{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:none;border-radius:10px;padding:12px 18px;font-weight:700;font-size:15px;line-height:1.4;transition:transform .2s,box-shadow .2s,background .2s,color .2s}.btn-main{background:var(--blue);color:#fff;box-shadow:0 8px 17px rgba(22,119,210,.22)}.btn-main:hover{color:#fff;background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(22,119,210,.3)}.btn-main:active{transform:translateY(0)}.btn-outline{background:transparent;color:var(--blue);border:1px solid #b6d6f2}.btn-outline:hover{color:var(--blue-dark);border-color:var(--blue);background:var(--blue-soft);transform:translateY(-1px)}.nav-cta{margin-left:18px;padding:10px 15px;font-size:14px}
.page-hero{position:relative;min-height:390px;display:flex;align-items:center;overflow:hidden;background:#123b4b;color:#fff}.page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,42,56,.93) 0%,rgba(12,53,69,.79) 48%,rgba(12,53,69,.28) 100%);z-index:1}.page-hero:after{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(129,225,207,.35);border-radius:50%;right:13%;top:18px;box-shadow:0 0 0 45px rgba(129,225,207,.06),0 0 0 90px rgba(129,225,207,.04);z-index:1}.page-hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-4.webp') center/cover no-repeat}.hero-content{position:relative;z-index:2;padding:68px 0}.breadcrumb{margin:0 0 20px;font-size:14px;color:#b9d8df}.breadcrumb a{transition:.2s}.breadcrumb a:hover{color:#fff}.breadcrumb span{padding:0 8px;color:#6ebdb5}.page-kicker{display:inline-flex;align-items:center;gap:8px;color:#8ee1d3;font-size:13px;font-weight:800;letter-spacing:.11em}.page-kicker:before{content:"";width:26px;border-top:2px solid #7fe0cf}.page-hero h1{font-size:clamp(34px,4.2vw,54px);line-height:1.2;letter-spacing:-.035em;font-weight:800;margin:15px 0 16px}.page-hero p{max-width:700px;font-size:17px;line-height:1.9;color:#deeff0;margin:0}.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}.hero-tags span{font-size:13px;padding:6px 12px;border-radius:999px;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.09)}
section{position:relative;padding:100px 0}.section-eyebrow{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:9px;display:flex;align-items:center;gap:8px}.section-eyebrow:before{content:"";width:18px;height:2px;background:var(--teal)}.section-title{font-size:clamp(28px,3vw,39px);line-height:1.3;letter-spacing:-.025em;font-weight:800;color:var(--ink);margin:0 0 13px}.section-desc{max-width:720px;color:var(--muted);margin:0;font-size:16px}
.anchor-nav{padding:25px 0;background:#fff;border-bottom:1px solid var(--line)}.anchor-list{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.anchor-label{font-weight:800;font-size:14px;margin-right:4px;color:var(--ink)}.anchor-list a{padding:8px 13px;border:1px solid var(--line);border-radius:999px;color:var(--ink-2);font-size:14px;font-weight:600;transition:.2s}.anchor-list a:hover{background:var(--blue-soft);border-color:#acd1f0;color:var(--blue)}
.content-section{background:var(--warm)}.safety-list{margin-top:47px;display:grid;gap:18px}.safety-item{display:grid;grid-template-columns:250px 1fr auto;align-items:center;gap:27px;padding:15px;background:#fff;border:1px solid #e3edf1;border-radius:var(--radius);box-shadow:0 8px 25px rgba(32,71,88,.045);transition:.25s}.safety-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c6dfef}.item-image{height:152px;border-radius:12px;overflow:hidden}.item-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s}.safety-item:hover .item-image img{transform:scale(1.04)}.item-body{min-width:0}.item-no{font-size:12px;font-weight:800;letter-spacing:.1em;color:var(--teal)}.item-body h3{font-size:21px;font-weight:800;margin:4px 0 7px;line-height:1.4}.item-body p{color:var(--muted);font-size:14px;line-height:1.75;margin:0 0 11px}.field-tags{display:flex;gap:7px;flex-wrap:wrap}.field-tags span{background:var(--pale);border-radius:6px;padding:3px 9px;font-size:12px;color:var(--ink-2);font-weight:600}.text-link{display:inline-flex;align-items:center;gap:7px;color:var(--blue);font-size:14px;font-weight:800;white-space:nowrap;transition:.2s}.text-link:hover{color:var(--blue-dark);gap:10px}
.process-section{background:var(--pale);overflow:hidden}.safety-track{margin-top:52px;display:grid;grid-template-columns:repeat(5,1fr);position:relative}.safety-track:before{content:"";position:absolute;left:8%;right:8%;top:39px;border-top:2px dashed #a8cadb}.track-step{position:relative;padding:0 17px}.step-dot{width:80px;height:80px;border-radius:50%;background:#fff;border:1px solid #cbe0eb;display:grid;place-items:center;color:var(--blue);font-size:24px;position:relative;z-index:1;box-shadow:0 8px 20px rgba(30,85,108,.08)}.track-step:nth-child(even) .step-dot{color:var(--teal)}.track-step h3{font-size:18px;font-weight:800;margin:18px 0 7px}.track-step p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}
.capability-grid{margin-top:46px;display:grid;grid-template-columns:1.2fr .8fr 1fr 1fr;gap:18px}.capability{min-height:238px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 8px 25px rgba(29,71,89,.045);transition:.25s}.capability:first-child{background:#123f52;color:#fff;border-color:#123f52}.capability:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}.cap-icon{width:46px;height:46px;border-radius:12px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;font-size:20px;margin-bottom:24px}.capability:first-child .cap-icon{background:rgba(135,231,214,.14);color:#85e2d1}.capability h3{font-size:20px;font-weight:800;margin:0 0 9px;line-height:1.4}.capability p{font-size:14px;color:var(--muted);margin:0;line-height:1.75}.capability:first-child p{color:#d4e6ea}
.scenes-section{background:#fff}.scene-layout{display:grid;grid-template-columns:.95fr 1.05fr;gap:50px;align-items:center;margin-top:45px}.venue-map{background:#eaf5f6;border-radius:20px;padding:30px;min-height:350px;position:relative;overflow:hidden;border:1px solid #dcecee}.venue-map:before{content:"";position:absolute;inset:30px;border:2px solid rgba(22,119,210,.2);border-radius:50% 50% 43% 43%;transform:rotate(-9deg)}.venue-map:after{content:"";position:absolute;width:70%;height:42%;left:14%;top:29%;border:2px dashed rgba(36,156,138,.45);border-radius:50%}.map-node{position:absolute;width:43px;height:43px;background:#fff;border-radius:50%;box-shadow:0 7px 15px rgba(20,86,110,.15);display:grid;place-items:center;color:var(--blue);font-size:16px;border:1px solid #d6e7ef}.map-node.n1{top:21%;left:22%}.map-node.n2{top:55%;left:43%;color:var(--teal)}.map-node.n3{top:23%;right:19%;color:var(--orange)}.map-node.n4{bottom:15%;right:25%;color:var(--teal)}.map-caption{position:absolute;bottom:25px;left:30px;font-size:14px;font-weight:800;color:var(--ink)}.scene-rows{display:grid;gap:10px}.scene-row{display:grid;grid-template-columns:140px 1fr;gap:18px;padding:15px 0;border-bottom:1px solid var(--line)}.scene-row:last-child{border:0}.scene-row strong{font-size:16px;color:var(--ink)}.scene-row span{font-size:14px;color:var(--muted)}
.data-section{background:var(--pale)}.data-wrap{margin-top:45px;background:#fff;border-radius:20px;padding:34px;box-shadow:var(--shadow);border:1px solid #e1edf2}.data-row{display:grid;grid-template-columns:210px 1fr 170px;gap:25px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line)}.data-row:last-child{border-bottom:0}.data-name{font-size:16px;font-weight:800}.data-name small{display:block;color:var(--muted);font-weight:500;font-size:13px;margin-top:2px}.progress-custom{height:9px;border-radius:99px;background:#e6f0f3;overflow:hidden}.progress-custom span{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--blue),#49a2dd)}.data-row:nth-child(3) .progress-custom span{background:linear-gradient(90deg,var(--teal),#68c3ae)}.data-note{font-size:13px;color:var(--muted);text-align:right}
.faq-contact{background:var(--warm)}.faq-wrap{margin-top:43px}.accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;margin-bottom:12px;background:#fff}.accordion-button{font-size:16px;font-weight:800;color:var(--ink);padding:19px 22px;background:#fff;box-shadow:none!important}.accordion-button:not(.collapsed){color:var(--blue);background:var(--blue-soft)}.accordion-button:after{background-size:15px}.accordion-body{padding:0 22px 20px;color:var(--muted);font-size:14px;line-height:1.85}.accordion-body ul{margin:9px 0 0;padding-left:19px}.contact-bar{margin-top:48px;padding:29px 32px;border-radius:20px;background:#123f52;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;overflow:hidden}.contact-bar:after{content:"";position:absolute;width:200px;height:200px;border-radius:50%;border:1px solid rgba(123,232,212,.25);right:-45px;top:-80px}.contact-bar h2{font-size:24px;font-weight:800;margin:0 0 5px;position:relative;z-index:1}.contact-bar p{margin:0;color:#d3e8eb;font-size:14px;position:relative;z-index:1}.contact-bar .btn-main{position:relative;z-index:1;white-space:nowrap}
footer{background:#0d2d39;color:#c4d8dc;padding:73px 0 23px}.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:21px;font-weight:800;margin-bottom:16px}.footer-copy{font-size:14px;line-height:1.9;margin:0;max-width:330px}.footer-heading{font-size:15px;color:#fff;font-weight:800;margin-bottom:17px}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin-bottom:9px}.footer-links a,.footer-contact a{font-size:14px;color:#c4d8dc;transition:.2s}.footer-links a:hover,.footer-contact a:hover{color:#80ddcf}.footer-contact p{font-size:14px;margin:0 0 8px}.footer-bottom{border-top:1px solid rgba(202,230,233,.16);margin-top:49px;padding-top:20px;display:flex;justify-content:space-between;gap:15px;font-size:13px}.footer-bottom a{color:#c4d8dc}.footer-bottom a:hover{color:#80ddcf}
@media(max-width:1100px){.navbar-brand{margin-right:15px}.navbar-nav .nav-link{padding:10px 7px!important;font-size:13px}.nav-cta{margin-left:10px}.capability-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:991px){.main-header{top:0}.navbar-collapse{padding:15px 0 20px}.navbar-nav{gap:5px;padding:7px 0}.navbar-nav .nav-link{padding:11px 12px!important}.nav-cta{margin:12px 0 0;width:100%;min-height:46px}.page-hero{min-height:355px}.safety-item{grid-template-columns:210px 1fr}.safety-item .text-link{grid-column:2}.safety-track{grid-template-columns:repeat(3,1fr);gap:35px 0}.safety-track:before{display:none}.scene-layout{gap:30px}.top-strip{display:none}}
@media(max-width:767px){section{padding:64px 0}.site-container{padding:0 18px}.page-hero{min-height:360px}.hero-content{padding:55px 0}.page-hero h1{font-size:34px}.page-hero p{font-size:15px}.page-hero:after{width:220px;height:220px;right:-80px;top:45px}.anchor-nav{padding:17px 0}.anchor-list{gap:8px}.anchor-label{width:100%}.safety-list{margin-top:32px}.safety-item{grid-template-columns:1fr;gap:15px;padding:13px}.item-image{height:190px}.safety-item .text-link{grid-column:auto}.safety-track{grid-template-columns:1fr;gap:25px;margin-top:36px;border-left:2px dashed #a8cadb;margin-left:39px}.track-step{padding:0 0 0 38px}.step-dot{position:absolute;left:-41px;top:0;width:78px;height:78px}.track-step h3{margin-top:0;padding-top:7px}.capability-grid{grid-template-columns:1fr;margin-top:32px}.capability{min-height:0;padding:24px}.scene-layout{grid-template-columns:1fr;margin-top:32px}.venue-map{min-height:280px}.scene-row{grid-template-columns:1fr;gap:3px}.data-wrap{padding:20px}.data-row{grid-template-columns:1fr;gap:9px;padding:18px 0}.data-note{text-align:left}.contact-bar{padding:27px 23px;display:block}.contact-bar .btn-main{width:100%;margin-top:20px;min-height:48px}.footer-bottom{display:block;line-height:2}.footer-bottom div+div{margin-top:5px}}
@media(max-width:420px){.navbar-brand{font-size:18px}.brand-mark{width:31px;height:31px}.page-hero h1{font-size:31px}.section-title{font-size:27px}.hero-tags span{font-size:12px}.anchor-list a{font-size:13px;padding:7px 10px}.item-body h3{font-size:19px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}

/* roulang page: category6 */
:root{
 --blue:#1677d2;--blue-dark:#075fae;--blue-soft:#eaf4ff;--ink:#102d3a;--ink-2:#304e5d;--muted:#69808c;
 --teal:#249c8a;--green-soft:#e6f5ef;--orange:#d98536;--warm:#fbfcfa;--pale:#f2f7fa;--line:#dce8ed;
 --white:#fff;--shadow:0 14px 38px rgba(26,66,83,.09);--shadow-hover:0 22px 46px rgba(20,81,108,.16);
 --radius:18px;--radius-sm:12px;--container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:115px}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:var(--warm);font-size:16px;line-height:1.75;overflow-x:hidden}
a{text-decoration:none;color:inherit} img{max-width:100%;display:block} button,input,select,textarea{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(22,119,210,.35);outline-offset:3px}
.site-container{max-width:var(--container);margin:auto;padding:0 22px}
.topbar{background:#0d3745;color:#d5eaed;font-size:13px;min-height:35px;display:flex;align-items:center}
.topbar .site-container{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px}
.top-pills,.top-contact{display:flex;align-items:center;gap:10px;white-space:nowrap}
.top-pills span{display:inline-flex;align-items:center;gap:6px}
.top-pills span+span:before{content:"";width:3px;height:3px;background:#7fc8bf;border-radius:50%;margin-right:10px}
.top-contact a{color:#fff;font-weight:700}
.main-header{position:sticky;top:0;z-index:1050;background:rgba(255,255,255,.97);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,232,237,.8)}
.nav-shell{min-height:76px;display:flex;align-items:center}
.navbar{width:100%;padding:0}.navbar-brand{color:var(--ink)!important;font-size:20px;font-weight:800;letter-spacing:.02em;display:flex;align-items:center;gap:10px;margin-right:34px}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;display:inline-grid;place-items:center;font-size:15px;box-shadow:0 6px 14px rgba(22,119,210,.25)}
.navbar-nav{gap:3px}.navbar-nav .nav-link{font-size:14px;color:var(--ink-2);font-weight:600;padding:10px 10px!important;border-radius:8px;transition:.2s ease}
.navbar-nav .nav-link:hover,.navbar-nav .nav-link.active{color:var(--blue);background:var(--blue-soft)}
.navbar-toggler{border:1px solid var(--line);width:46px;height:46px;border-radius:12px;padding:0;color:var(--ink);box-shadow:none!important}
.navbar-toggler-icon{width:20px;height:15px;background:none;position:relative;display:inline-block;border-top:2px solid currentColor;border-bottom:2px solid currentColor}
.navbar-toggler-icon:after{content:"";position:absolute;left:0;right:0;top:5px;border-top:2px solid currentColor}
.btn-main,.btn-outline,.btn-lightline{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:none;border-radius:10px;padding:12px 18px;font-weight:700;font-size:15px;line-height:1.4;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn-main{background:var(--blue);color:#fff;box-shadow:0 8px 17px rgba(22,119,210,.22)}.btn-main:hover{color:#fff;background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(22,119,210,.3)}.btn-main:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--blue);border:1px solid #b6d6f2}.btn-outline:hover{color:var(--blue-dark);border-color:var(--blue);background:var(--blue-soft);transform:translateY(-1px)}
.btn-lightline{border:1px solid rgba(255,255,255,.58);color:#fff;background:transparent}.btn-lightline:hover{color:#fff;background:rgba(255,255,255,.1);transform:translateY(-1px)}
.nav-cta{margin-left:18px;padding:10px 15px;font-size:14px}
section{position:relative;padding:96px 0}.section-eyebrow{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:10px;display:flex;align-items:center;gap:8px}.section-eyebrow:before{content:"";width:18px;height:2px;background:var(--teal)}
.section-title{font-size:clamp(28px,3.1vw,40px);line-height:1.3;letter-spacing:-.025em;font-weight:800;color:var(--ink);margin:0 0 14px}.section-desc{max-width:720px;color:var(--muted);font-size:16px;margin:0}
.inner-hero{padding:68px 0 72px;background:#e9f4f8;overflow:hidden;position:relative;border-bottom:1px solid var(--line)}
.inner-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(234,244,255,.96) 0%,rgba(234,244,255,.84) 45%,rgba(234,244,255,.2) 100%),url('/assets/images/backpic/back-6.webp') center/cover no-repeat}
.inner-hero:after{content:"";position:absolute;width:410px;height:410px;border:1px dashed rgba(36,156,138,.35);border-radius:50%;right:8%;top:-155px}
.hero-inner-content{position:relative;z-index:2;max-width:770px}.breadcrumb{margin:0 0 19px;font-size:14px}.breadcrumb-item,.breadcrumb-item a{color:#52707c}.breadcrumb-item.active{color:var(--blue)}.breadcrumb-item+.breadcrumb-item:before{color:#90a9b3}
.page-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-weight:800;font-size:13px;letter-spacing:.08em}.page-kicker i{color:var(--blue)}
h1{font-size:clamp(35px,4.4vw,54px);line-height:1.2;letter-spacing:-.04em;margin:14px 0 17px;font-weight:850}.hero-lead{font-size:17px;color:var(--ink-2);max-width:700px;margin:0}
.topic-nav{padding:27px 0;background:#fff;border-bottom:1px solid var(--line)}.topic-scroll{display:flex;gap:10px;overflow:auto;padding-bottom:2px}.topic-scroll a{white-space:nowrap;border:1px solid var(--line);padding:8px 14px;border-radius:99px;font-size:14px;font-weight:700;color:var(--ink-2);transition:.2s}.topic-scroll a:hover,.topic-scroll a.active{background:var(--blue-soft);border-color:#abd1ef;color:var(--blue)}
.content-section{background:var(--warm)}.review-list{display:grid;gap:18px;margin-top:42px}.review-item{display:grid;grid-template-columns:240px 1fr auto;align-items:center;gap:28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px;box-shadow:0 6px 20px rgba(31,75,94,.035);transition:.25s}.review-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c8dde9}.review-image{height:155px;border-radius:12px;overflow:hidden}.review-image img{height:100%;width:100%;object-fit:cover}.review-body h3{font-size:21px;line-height:1.4;margin:0 0 8px;font-weight:800}.review-body p{margin:0 0 12px;color:var(--muted);font-size:15px}.tag-row{display:flex;flex-wrap:wrap;gap:7px}.tag{display:inline-flex;align-items:center;padding:4px 9px;border-radius:99px;background:var(--pale);color:#52707c;font-size:12px;font-weight:700}.tag.teal{background:var(--green-soft);color:#16826f}.review-link{color:var(--blue);font-weight:800;font-size:14px;white-space:nowrap;padding:11px}.review-link:hover{color:var(--blue-dark)}.review-link i{margin-left:5px;transition:.2s}.review-link:hover i{transform:translateX(4px)}
.method-section{background:var(--pale)}.method-wrap{margin-top:44px;display:grid;grid-template-columns:1.1fr .9fr;gap:45px;align-items:center}.method-track{position:relative;padding-left:45px}.method-track:before{content:"";position:absolute;left:15px;top:14px;bottom:14px;width:2px;background:linear-gradient(var(--blue),var(--teal))}.method-step{position:relative;padding:0 0 28px}.method-step:last-child{padding-bottom:0}.method-no{position:absolute;left:-45px;top:0;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:#fff;border:2px solid #89bee7;color:var(--blue);font-size:12px;font-weight:850}.method-step h3{font-size:19px;margin:0 0 5px;font-weight:800}.method-step p{margin:0;color:var(--muted);font-size:15px}.method-panel{background:#103a49;color:#e2f1f3;border-radius:var(--radius);padding:34px;box-shadow:var(--shadow);position:relative;overflow:hidden}.method-panel:after{content:"";position:absolute;width:270px;height:270px;border:1px solid rgba(125,218,201,.25);border-radius:50%;right:-130px;bottom:-145px}.method-panel h3{position:relative;font-size:25px;line-height:1.4;margin:0 0 18px;color:#fff;font-weight:800}.method-panel ul{list-style:none;padding:0;margin:0;position:relative}.method-panel li{border-top:1px solid rgba(255,255,255,.14);padding:13px 0;display:flex;gap:10px;font-size:14px}.method-panel li i{color:#7ed4c6;margin-top:5px}
.ability-section{background:#fff}.ability-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;grid-template-rows:auto auto;gap:18px;margin-top:42px}.ability-card{background:var(--pale);border:1px solid #e1ebef;border-radius:var(--radius);padding:26px;min-height:205px;transition:.25s}.ability-card:hover{transform:translateY(-4px);background:#fff;box-shadow:var(--shadow-hover)}.ability-card:first-child{grid-row:span 2;background:#e8f4fb}.ability-icon{width:45px;height:45px;border-radius:13px;background:#fff;color:var(--blue);display:grid;place-items:center;font-size:20px;margin-bottom:20px}.ability-card:first-child .ability-icon{background:var(--blue);color:#fff}.ability-card h3{font-size:20px;font-weight:800;line-height:1.4;margin:0 0 8px}.ability-card p{font-size:14px;color:var(--muted);margin:0}.ability-card:first-child p{font-size:15px}
.scene-section{background:var(--warm)}.scene-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px;align-items:center;margin-top:42px}.venue-map{min-height:350px;background:#e9f5f6;border:1px solid #d7e9ea;border-radius:var(--radius);position:relative;overflow:hidden}.venue-map:before,.venue-map:after{content:"";position:absolute;border:2px solid rgba(22,119,210,.24);border-radius:50%}.venue-map:before{width:280px;height:280px;left:50%;top:50%;transform:translate(-50%,-50%)}.venue-map:after{width:105px;height:105px;left:50%;top:50%;transform:translate(-50%,-50%)}.route{position:absolute;left:8%;right:8%;top:51%;border-top:2px dashed var(--teal);transform:rotate(-18deg)}.map-node{position:absolute;width:17px;height:17px;border:4px solid #fff;background:var(--blue);border-radius:50%;box-shadow:0 3px 9px rgba(22,119,210,.25)}.map-node.one{top:22%;left:24%}.map-node.two{top:62%;left:42%;background:var(--teal)}.map-node.three{top:31%;right:19%;background:var(--orange)}.map-label{position:absolute;padding:4px 9px;border-radius:7px;background:#fff;color:var(--ink-2);font-size:12px;font-weight:700;box-shadow:0 5px 12px rgba(30,73,86,.1)}.map-label.one{left:15%;top:13%}.map-label.two{left:44%;bottom:18%}.map-label.three{right:8%;top:21%}.scene-list{display:grid;gap:11px}.scene-item{border-bottom:1px solid var(--line);padding:0 0 13px;display:grid;grid-template-columns:130px 1fr;gap:15px}.scene-item:last-child{border:0}.scene-name{font-weight:800;color:var(--blue)}.scene-focus{font-size:14px;color:var(--muted)}
.data-section{background:var(--pale)}.data-board{margin-top:42px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}.data-row{display:grid;grid-template-columns:190px 1fr 135px;align-items:center;gap:25px;padding:18px 0;border-bottom:1px solid var(--line)}.data-row:last-child{border:0}.data-name{font-weight:800}.data-name small{display:block;color:var(--muted);font-weight:500;font-size:13px}.bar{height:10px;border-radius:999px;background:#e5eff3;overflow:hidden}.bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--blue),var(--teal))}.data-check{font-size:13px;color:#2c7b70;font-weight:700;text-align:right}.data-check i{margin-right:5px}
.faq-section{background:#fff}.accordion{margin-top:35px}.accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;margin-bottom:12px;background:#fff}.accordion-button{box-shadow:none!important;background:#fff!important;color:var(--ink)!important;font-size:16px;font-weight:800;padding:18px 21px}.accordion-button:not(.collapsed){color:var(--blue)!important;background:var(--blue-soft)!important}.accordion-button:after{background-size:15px}.accordion-body{padding:2px 21px 20px;color:var(--muted);font-size:15px}.accordion-body ul{margin:10px 0 0;padding-left:20px}.accordion-body li{margin:3px 0}
.consult-strip{margin-top:42px;border-radius:var(--radius);padding:28px 32px;background:#113c4a;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:26px}.consult-strip h3{font-size:23px;margin:0 0 4px;font-weight:800}.consult-strip p{margin:0;color:#c9e0e5;font-size:14px}
footer{background:#0d2f3b;color:#c5d9dc;padding:65px 0 24px}footer .site-container{max-width:var(--container)}.footer-brand{font-size:21px;color:#fff;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:14px}.footer-copy{font-size:14px;line-height:1.8;max-width:315px;margin:0}.footer-heading{font-size:15px;color:#fff;font-weight:800;margin-bottom:16px}.footer-links{padding:0;margin:0;list-style:none}.footer-links li{margin:8px 0}.footer-links a,.footer-contact a{font-size:14px;color:#c5d9dc;transition:.2s}.footer-links a:hover,.footer-contact a:hover{color:#75c9f3}.footer-contact p{font-size:14px;margin:7px 0}.footer-bottom{margin-top:45px;padding-top:21px;border-top:1px solid rgba(255,255,255,.14);display:flex;justify-content:space-between;gap:15px;font-size:13px;color:#9cb8bd}.footer-bottom a:hover{color:#fff}
@media (max-width:1199px){.navbar-brand{margin-right:15px}.navbar-nav .nav-link{padding:9px 7px!important;font-size:13px}.nav-cta{margin-left:10px;font-size:13px;padding:10px 12px}.review-item{grid-template-columns:210px 1fr auto}}
@media (max-width:991px){.topbar{display:none}.nav-shell{min-height:68px}.navbar-collapse{padding:14px 0 4px}.navbar-nav{padding:6px 0;gap:4px}.navbar-nav .nav-link{padding:11px 12px!important}.nav-cta{margin:12px 0 8px;width:100%}.inner-hero{padding:54px 0}.review-item{grid-template-columns:190px 1fr}.review-link{grid-column:2}.method-wrap,.scene-layout{grid-template-columns:1fr}.ability-grid{grid-template-columns:1fr 1fr}.ability-card:first-child{grid-row:span 1}.scene-layout{gap:30px}}
@media (max-width:767px){.site-container{padding:0 17px}section{padding:63px 0}.inner-hero{padding:43px 0 48px}.hero-lead{font-size:16px}.topic-nav{padding:18px 0}.section-title{font-size:29px}.review-list{margin-top:30px}.review-item{display:block;padding:12px}.review-image{height:190px;margin-bottom:17px}.review-body h3{font-size:19px}.review-link{display:inline-flex;padding:11px 2px}.method-wrap{margin-top:30px}.method-panel{padding:27px 23px}.ability-grid{grid-template-columns:1fr;gap:13px;margin-top:30px}.ability-card{min-height:auto;padding:23px}.scene-layout{margin-top:30px}.venue-map{min-height:290px}.scene-item{grid-template-columns:110px 1fr;gap:10px}.data-board{padding:16px}.data-row{grid-template-columns:1fr;gap:8px;padding:16px 0}.data-check{text-align:left}.consult-strip{margin-top:30px;padding:25px 22px;display:block}.consult-strip .btn-main{margin-top:18px;width:100%;min-height:48px}.footer-bottom{display:block;line-height:2}.footer-bottom div+div{margin-top:5px}}
@media (max-width:520px){h1{font-size:34px}.breadcrumb{font-size:13px}.scene-item{display:block}.scene-name{margin-bottom:4px}.venue-map{min-height:250px}.map-label{font-size:11px}.accordion-button{font-size:15px;padding:16px}.accordion-body{padding:2px 16px 18px}.footer-brand{font-size:20px}}
@media (prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* roulang page: category5 */
:root{
 --blue:#1677d2;--blue-dark:#075fae;--blue-soft:#eaf4ff;--ink:#102d3a;--ink-2:#304e5d;
 --muted:#69808c;--teal:#249c8a;--green-soft:#e6f5ef;--orange:#d98536;--warm:#fbfcfa;
 --pale:#f2f7fa;--line:#dce8ed;--white:#fff;--shadow:0 14px 38px rgba(26,66,83,.09);
 --shadow-hover:0 22px 46px rgba(20,81,108,.16);--radius:18px;--radius-sm:12px;--container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:var(--warm);font-size:16px;line-height:1.75;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(22,119,210,.35);outline-offset:3px}
.site-container{max-width:var(--container);margin:auto;padding:0 22px}
.main-header{position:sticky;top:0;z-index:1050;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,232,237,.8)}
.nav-shell{min-height:76px;display:flex;align-items:center}
.navbar{width:100%;padding:0}
.navbar-brand{color:var(--ink)!important;font-size:20px;font-weight:800;letter-spacing:.02em;display:flex;align-items:center;gap:10px;margin-right:34px}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;display:inline-grid;place-items:center;font-size:15px;box-shadow:0 6px 14px rgba(22,119,210,.25)}
.navbar-nav{gap:3px}
.navbar-nav .nav-link{font-size:14px;color:var(--ink-2);font-weight:600;padding:10px 10px!important;border-radius:8px;transition:.2s ease}
.navbar-nav .nav-link:hover,.navbar-nav .nav-link.active{color:var(--blue);background:var(--blue-soft)}
.navbar-toggler{border:1px solid var(--line);width:46px;height:46px;border-radius:12px;padding:0;color:var(--ink);box-shadow:none!important}
.navbar-toggler-icon{width:20px;height:15px;background:none;position:relative;display:inline-block;border-top:2px solid currentColor;border-bottom:2px solid currentColor}
.navbar-toggler-icon:after{content:"";position:absolute;left:0;right:0;top:5px;border-top:2px solid currentColor}
.btn-main,.btn-outline,.btn-lightline{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:none;border-radius:10px;padding:12px 18px;font-weight:700;font-size:15px;line-height:1.4;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn-main{background:var(--blue);color:#fff;box-shadow:0 8px 17px rgba(22,119,210,.22)}
.btn-main:hover{color:#fff;background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(22,119,210,.30)}
.btn-main:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--blue);border:1px solid #b6d6f2}
.btn-outline:hover{color:var(--blue-dark);border-color:var(--blue);background:var(--blue-soft);transform:translateY(-1px)}
.nav-cta{margin-left:18px;padding:10px 15px;font-size:14px}
section{position:relative;padding:100px 0}
.section-eyebrow{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.section-eyebrow:before{content:"";width:18px;height:2px;background:var(--teal)}
.section-title{font-size:clamp(29px,3.2vw,40px);line-height:1.32;letter-spacing:-.025em;font-weight:800;color:var(--ink);margin:0 0 14px}
.section-desc{max-width:730px;color:var(--muted);font-size:16px;margin:0}
.inner-hero{min-height:386px;display:flex;align-items:center;position:relative;overflow:hidden;background:#153b4b url('/assets/images/backpic/back-5.webp') center/cover no-repeat}
.inner-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,35,47,.90),rgba(13,58,73,.73) 50%,rgba(14,68,82,.33))}
.inner-hero:after{content:"";position:absolute;width:440px;height:440px;border:1px solid rgba(139,220,211,.35);border-radius:50%;right:8%;top:-150px;box-shadow:0 0 0 38px rgba(36,156,138,.07),0 0 0 76px rgba(36,156,138,.05)}
.hero-inner-content{position:relative;z-index:1;padding:65px 0}
.breadcrumb{margin:0 0 18px;padding:0;background:none}
.breadcrumb-item,.breadcrumb-item a{color:#c5dde3;font-size:14px}
.breadcrumb-item+.breadcrumb-item:before{color:#8eb3bd}
.breadcrumb-item.active{color:#fff}
.inner-hero h1{color:#fff;font-size:clamp(36px,4.5vw,54px);line-height:1.2;font-weight:800;letter-spacing:-.03em;margin:0 0 16px}
.inner-hero p{margin:0;max-width:720px;color:#d5e8ec;font-size:17px;line-height:1.9}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}
.hero-tags span,.tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 11px;font-size:13px;font-weight:700}
.hero-tags span{color:#ddf8f1;background:rgba(70,175,161,.18);border:1px solid rgba(144,225,213,.3)}
.anchor-section{padding:30px 0;background:#fff;border-bottom:1px solid var(--line)}
.anchor-list{display:flex;align-items:center;gap:10px;overflow:auto;padding:2px 0}
.anchor-list a{white-space:nowrap;color:var(--ink-2);font-size:14px;font-weight:700;padding:8px 14px;border:1px solid var(--line);border-radius:999px;transition:.2s}
.anchor-list a:hover{background:var(--blue-soft);border-color:#b8d9f2;color:var(--blue)}
.content-area{background:var(--warm)}
.list-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:start;margin-top:48px}
.feature-panel{position:sticky;top:104px;background:var(--ink);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.feature-panel img{height:296px;width:100%;object-fit:cover;opacity:.82}
.feature-copy{padding:25px;color:#fff}
.feature-copy .tag{background:rgba(116,220,204,.16);color:#b9f6e9}
.feature-copy h3{font-size:24px;line-height:1.4;font-weight:800;margin:14px 0 8px}
.feature-copy p{color:#ccdde1;margin:0;font-size:14px}
.content-list{display:grid;gap:14px}
.content-item{display:grid;grid-template-columns:156px 1fr;gap:19px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);transition:.25s ease}
.content-item:hover{transform:translateX(4px);box-shadow:var(--shadow);border-color:#c5dfef}
.content-item img{height:114px;width:100%;border-radius:9px;object-fit:cover}
.content-item h3{font-size:18px;line-height:1.45;font-weight:800;margin:0 0 5px}
.content-item p{margin:0 0 8px;color:var(--muted);font-size:14px;line-height:1.65}
.item-meta{display:flex;align-items:center;justify-content:space-between;gap:10px}
.item-meta .tag{background:var(--blue-soft);color:var(--blue);padding:4px 9px;font-size:12px}
.text-link{color:var(--blue);font-size:13px;font-weight:800;white-space:nowrap}
.text-link:hover{color:var(--blue-dark);text-decoration:underline}
.method-section{background:var(--pale);overflow:hidden}
.method-wrap{margin-top:50px;display:grid;grid-template-columns:210px 1fr;gap:40px;align-items:start}
.method-side{padding:27px;border-radius:var(--radius);background:#fff;box-shadow:var(--shadow)}
.method-side strong{display:block;font-size:44px;line-height:1;color:var(--blue);margin-bottom:9px}
.method-side p{font-size:14px;color:var(--muted);margin:0}
.flow-rail{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:14px;padding-top:10px}
.flow-rail:before{content:"";position:absolute;left:6%;right:6%;top:39px;border-top:2px dashed #a9cedc}
.flow-step{position:relative;z-index:1}
.flow-dot{width:60px;height:60px;border-radius:18px;background:#fff;border:1px solid #cce3ee;color:var(--blue);display:grid;place-items:center;font-weight:800;font-size:17px;margin-bottom:18px;box-shadow:0 8px 18px rgba(30,83,105,.07)}
.flow-step:nth-child(2) .flow-dot,.flow-step:nth-child(4) .flow-dot{background:var(--green-soft);border-color:#bde3d7;color:var(--teal)}
.flow-step h3{font-size:17px;font-weight:800;margin:0 0 7px}
.flow-step p{color:var(--muted);font-size:13px;line-height:1.65;margin:0;max-width:170px}
.capability-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr 1.2fr;gap:18px;margin-top:48px}
.capability-card{min-height:235px;background:#fff;border:1px solid var(--line);padding:27px;border-radius:var(--radius);box-shadow:0 8px 22px rgba(26,66,83,.045);transition:.25s}
.capability-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.capability-card:nth-child(1),.capability-card:nth-child(4){background:#eaf4ff}
.capability-icon{width:47px;height:47px;border-radius:14px;background:#fff;color:var(--blue);display:grid;place-items:center;font-size:20px;box-shadow:0 6px 15px rgba(22,119,210,.10);margin-bottom:22px}
.capability-card:nth-child(2) .capability-icon{color:var(--teal);background:var(--green-soft)}
.capability-card h3{font-size:19px;font-weight:800;margin:0 0 8px}
.capability-card p{color:var(--muted);font-size:14px;line-height:1.7;margin:0}
.scene-section{background:#fff}
.scene-layout{display:grid;grid-template-columns:.93fr 1.07fr;gap:58px;align-items:center;margin-top:48px}
.venue-map{height:405px;border-radius:var(--radius);overflow:hidden;position:relative;background:#173e4a url('/assets/images/coverpic/cover-14.webp') center/cover no-repeat;box-shadow:var(--shadow)}
.venue-map:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,48,62,.62),rgba(18,100,116,.23))}
.map-lines{position:absolute;inset:32px;border:1px dashed rgba(224,255,249,.60);border-radius:12px}
.map-lines:before,.map-lines:after{content:"";position:absolute;background:rgba(220,255,249,.45)}
.map-lines:before{left:50%;top:0;bottom:0;width:1px}
.map-lines:after{top:50%;left:0;right:0;height:1px}
.map-point{position:absolute;color:#fff;font-size:13px;font-weight:700;background:rgba(7,40,53,.7);border:1px solid rgba(226,255,250,.45);border-radius:999px;padding:5px 9px}
.map-point:before{content:"";display:inline-block;width:7px;height:7px;margin-right:6px;background:#71d2bd;border-radius:50%}
.point-a{top:25%;left:16%}.point-b{top:42%;right:14%}.point-c{bottom:21%;left:34%}.point-d{bottom:16%;right:25%}
.scene-group{display:grid;gap:12px}
.scene-row{display:grid;grid-template-columns:130px 1fr;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}
.scene-row:last-child{border-bottom:0}
.scene-row strong{font-size:15px;color:var(--ink)}
.scene-row p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
.data-section{background:var(--pale)}
.data-layout{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin-top:46px}
.data-board{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
.data-board h3{font-size:21px;font-weight:800;margin:0 0 22px}
.metric-row{margin-bottom:19px}
.metric-row:last-child{margin-bottom:0}
.metric-top{display:flex;justify-content:space-between;gap:15px;font-size:14px;margin-bottom:8px}
.metric-top span:first-child{font-weight:700}.metric-top span:last-child{color:var(--muted)}
.progress-custom{height:8px;border-radius:10px;background:#e8f0f3;overflow:hidden}
.progress-custom i{display:block;height:100%;border-radius:10px;background:linear-gradient(90deg,var(--blue),#55a6e9)}
.progress-custom.teal i{background:linear-gradient(90deg,var(--teal),#70cdbd)}
.record-list{display:grid;gap:12px}
.record-item{display:flex;gap:14px;align-items:flex-start;padding:15px;border-radius:12px;background:#f8fbfc}
.record-icon{width:36px;height:36px;flex:0 0 36px;border-radius:10px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center}
.record-item strong{display:block;font-size:15px;margin-bottom:2px}
.record-item p{font-size:13px;color:var(--muted);line-height:1.6;margin:0}
.faq-contact-section{padding-bottom:108px}
.faq-layout{display:grid;grid-template-columns:1fr .85fr;gap:48px;align-items:start;margin-top:46px}
.accordion-item{border:1px solid var(--line)!important;border-radius:13px!important;margin-bottom:12px!important;overflow:hidden;background:#fff}
.accordion-button{font-size:16px;font-weight:800;color:var(--ink);padding:18px 20px;box-shadow:none!important;background:#fff}
.accordion-button:not(.collapsed){color:var(--blue);background:var(--blue-soft)}
.accordion-button:after{background-size:15px}
.accordion-body{padding:0 20px 19px;color:var(--muted);font-size:14px;line-height:1.8}
.accordion-body .tag{margin-top:11px;background:var(--green-soft);color:#167864;font-size:12px}
.contact-strip{padding:31px;background:var(--ink);border-radius:var(--radius);color:#fff;box-shadow:var(--shadow)}
.contact-strip .section-eyebrow{color:#9de3d7;margin-bottom:8px}.contact-strip .section-eyebrow:before{background:#6cd0be}
.contact-strip h3{font-size:28px;line-height:1.35;font-weight:800;margin:0 0 12px}
.contact-strip p{color:#c8dce1;font-size:14px;line-height:1.8;margin:0 0 22px}
.contact-strip .btn-main{width:100%;background:#3b9be0}
.contact-strip .btn-main:hover{background:#61afe9}
.contact-details{margin-top:21px;padding-top:18px;border-top:1px solid rgba(255,255,255,.16);font-size:13px;color:#b5ccd2}
footer{background:#102f39;color:#d1e0e3;padding:74px 0 23px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:21px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-copy{font-size:14px;line-height:1.85;color:#b7ccd1;max-width:340px;margin:0}
.footer-heading{font-weight:800;color:#fff;margin-bottom:17px;font-size:15px}
.footer-links{padding:0;margin:0;list-style:none}
.footer-links li{margin-bottom:9px}
.footer-links a,.footer-contact a{font-size:14px;color:#b9cfd4;transition:.2s}
.footer-links a:hover,.footer-contact a:hover{color:#7dd4c4}
.footer-contact p{font-size:14px;color:#b9cfd4;line-height:1.7;margin:0 0 7px}
.footer-bottom{border-top:1px solid rgba(208,232,234,.15);margin-top:48px;padding-top:21px;display:flex;justify-content:space-between;gap:15px;font-size:13px;color:#9eb9bf}
.footer-bottom a{color:#b7d2d6}.footer-bottom a:hover{color:#7dd4c4}
@media(max-width:991.98px){
 .navbar-brand{margin-right:0}.navbar-collapse{margin-top:13px;padding:12px 0 17px;border-top:1px solid var(--line)}
 .navbar-nav{gap:2px}.navbar-nav .nav-link{padding:11px 10px!important}.nav-cta{margin:14px 0 0;width:100%}
 .list-layout,.scene-layout,.faq-layout{grid-template-columns:1fr;gap:35px}.feature-panel{position:relative;top:0}
 .capability-grid{grid-template-columns:repeat(2,1fr)}.method-wrap{grid-template-columns:1fr;gap:25px}
 .method-side{display:flex;align-items:center;gap:20px}.method-side strong{margin:0}.method-side p{max-width:550px}
}
@media(max-width:767.98px){
 body{font-size:15px}.site-container{padding:0 17px}section{padding:65px 0}
 .inner-hero{min-height:350px}.hero-inner-content{padding:55px 0}.inner-hero h1{font-size:35px}
 .inner-hero p{font-size:15px}.anchor-section{padding:18px 0}.anchor-list{gap:8px}
 .list-layout{margin-top:34px}.content-item{grid-template-columns:112px 1fr;gap:13px;padding:10px}.content-item img{height:104px}
 .content-item h3{font-size:16px}.content-item p{font-size:13px}.item-meta .tag{display:none}
 .flow-rail{grid-template-columns:1fr;gap:23px;padding-left:16px}.flow-rail:before{left:45px;right:auto;top:29px;bottom:26px;height:auto;border-top:0;border-left:2px dashed #a9cedc}
 .flow-step{display:grid;grid-template-columns:68px 1fr;column-gap:15px}.flow-dot{margin:0;width:58px;height:58px}
 .flow-step h3{margin-top:3px}.flow-step p{grid-column:2;max-width:none;margin-top:-20px}
 .capability-grid{grid-template-columns:1fr;gap:13px}.capability-card{min-height:0;padding:23px}
 .venue-map{height:325px}.scene-row{grid-template-columns:105px 1fr;gap:10px}
 .data-layout{grid-template-columns:1fr}.data-board{padding:23px}.faq-layout{margin-top:30px}
 footer{padding-top:56px}.footer-bottom{display:block;line-height:2}.footer-bottom div+div{margin-top:5px}
}
@media(max-width:420px){
 .navbar-brand{font-size:18px}.brand-mark{width:32px;height:32px}.inner-hero h1{font-size:31px}
 .content-item{grid-template-columns:95px 1fr}.content-item img{height:96px}.content-item p{display:none}
 .section-title{font-size:28px}.method-side{display:block}.method-side strong{margin-bottom:9px}
 .scene-row{grid-template-columns:1fr;gap:3px}.map-point{font-size:11px;padding:4px 7px}
}
@media(prefers-reduced-motion:reduce){
 *,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}

/* roulang page: category7 */
:root{
 --blue:#1677d2;
 --blue-dark:#075fae;
 --blue-soft:#eaf4ff;
 --ink:#102d3a;
 --ink-2:#304e5d;
 --muted:#69808c;
 --teal:#249c8a;
 --green-soft:#e6f5ef;
 --orange:#d98536;
 --warm:#fbfcfa;
 --pale:#f2f7fa;
 --line:#dce8ed;
 --white:#fff;
 --deep:#102f3a;
 --shadow:0 14px 38px rgba(26,66,83,.09);
 --shadow-hover:0 22px 46px rgba(20,81,108,.16);
 --radius:18px;
 --radius-sm:12px;
 --container:1240px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:118px}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:var(--warm);font-size:16px;line-height:1.75;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(22,119,210,.35);outline-offset:3px}
.site-container{max-width:var(--container);margin:auto;padding:0 22px}
.topline{background:var(--deep);color:#c8dee4;font-size:12px}
.topline-inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.top-pills,.top-contact{display:flex;align-items:center;gap:10px;white-space:nowrap}
.top-pills span{display:inline-flex;align-items:center;gap:6px}
.top-pills span+span:before{content:"";width:3px;height:3px;background:#7fc8bf;border-radius:50%;margin-right:10px}
.top-contact a{color:#fff;font-weight:600}
.main-header{position:sticky;top:0;z-index:1050;background:rgba(255,255,255,.97);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,232,237,.8)}
.nav-shell{min-height:76px;display:flex;align-items:center}
.navbar{width:100%;padding:0}
.navbar-brand{color:var(--ink)!important;font-size:20px;font-weight:800;letter-spacing:.02em;display:flex;align-items:center;gap:10px;margin-right:34px}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--blue);color:#fff;display:inline-grid;place-items:center;font-size:15px;box-shadow:0 6px 14px rgba(22,119,210,.25)}
.navbar-nav{gap:3px}
.navbar-nav .nav-link{font-size:14px;color:var(--ink-2);font-weight:600;padding:10px 10px!important;border-radius:8px;transition:.2s ease}
.navbar-nav .nav-link:hover,.navbar-nav .nav-link.active{color:var(--blue);background:var(--blue-soft)}
.navbar-toggler{border:1px solid var(--line);width:46px;height:46px;border-radius:12px;padding:0;color:var(--ink);box-shadow:none!important}
.navbar-toggler-icon{width:20px;height:15px;background:none;position:relative;display:inline-block;border-top:2px solid currentColor;border-bottom:2px solid currentColor}
.navbar-toggler-icon:after{content:"";position:absolute;left:0;right:0;top:5px;border-top:2px solid currentColor}
.btn-main,.btn-outline,.btn-lightline{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:none;border-radius:10px;padding:12px 18px;font-weight:700;font-size:15px;line-height:1.4;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn-main{background:var(--blue);color:#fff;box-shadow:0 8px 17px rgba(22,119,210,.22)}
.btn-main:hover{color:#fff;background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(22,119,210,.3)}
.btn-main:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--blue);border:1px solid #b6d6f2}
.btn-outline:hover{color:var(--blue-dark);border-color:var(--blue);background:var(--blue-soft);transform:translateY(-1px)}
.btn-lightline{border:1px solid rgba(255,255,255,.58);color:#fff;background:transparent}
.btn-lightline:hover{color:#fff;background:rgba(255,255,255,.1);transform:translateY(-1px)}
.nav-cta{margin-left:18px;padding:10px 15px;font-size:14px}
section{position:relative;padding:102px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;margin-bottom:42px}
.section-eyebrow{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.section-eyebrow:before{content:"";width:18px;height:2px;background:var(--teal)}
.section-title{font-size:clamp(28px,3.1vw,39px);line-height:1.32;letter-spacing:-.025em;font-weight:800;color:var(--ink);margin:0 0 12px}
.section-desc{max-width:720px;color:var(--muted);font-size:16px;margin:0}
.page-hero{min-height:378px;display:flex;align-items:center;background:linear-gradient(90deg,rgba(11,43,57,.91),rgba(11,57,76,.72)),url('/assets/images/backpic/back-7.webp') center/cover no-repeat;overflow:hidden}
.page-hero-inner{padding:72px 0 68px}
.breadcrumb{margin:0 0 23px;padding:0;background:none}
.breadcrumb-item,.breadcrumb-item a{font-size:13px;color:#d3e6eb}
.breadcrumb-item+.breadcrumb-item:before{color:#88aab4}
.page-kicker{color:#91e0d0;font-size:13px;font-weight:800;letter-spacing:.11em;margin-bottom:12px}
.page-hero h1{max-width:790px;font-size:clamp(35px,4.5vw,54px);line-height:1.22;letter-spacing:-.04em;color:#fff;font-weight:800;margin:0 0 18px}
.page-hero p{max-width:760px;color:#d9e9ee;font-size:17px;line-height:1.9;margin:0}
.hero-stamp{display:inline-flex;align-items:center;gap:8px;margin-top:25px;padding:8px 13px;border:1px solid rgba(193,232,237,.28);background:rgba(255,255,255,.1);border-radius:999px;color:#e8fbf7;font-size:13px}
.topic-nav{padding:20px 0;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:76px;z-index:30}
.topic-nav-inner{display:flex;gap:10px;overflow:auto;scrollbar-width:none;padding:0 2px}
.topic-nav-inner::-webkit-scrollbar{display:none}
.topic-link{display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;border:1px solid var(--line);border-radius:999px;padding:8px 14px;background:#fff;color:var(--ink-2);font-weight:700;font-size:13px;transition:.2s}
.topic-link:hover,.topic-link.active{background:var(--blue-soft);border-color:#b7daf6;color:var(--blue)}
.case-section{background:var(--warm)}
.case-list{display:grid;gap:20px}
.case-item{display:grid;grid-template-columns:280px 1fr auto;align-items:stretch;gap:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 6px 18px rgba(29,74,91,.04);transition:.25s ease}
.case-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#c9e1ef}
.case-image{position:relative;min-height:204px;overflow:hidden}
.case-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.case-item:hover .case-image img{transform:scale(1.045)}
.case-number{position:absolute;top:15px;left:15px;padding:4px 10px;border-radius:999px;background:rgba(12,45,59,.78);color:#fff;font-size:12px;font-weight:800;letter-spacing:.08em}
.case-body{padding:25px 28px}
.case-tags{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:11px}
.tag{display:inline-flex;align-items:center;border-radius:999px;padding:4px 9px;background:var(--blue-soft);color:var(--blue-dark);font-size:12px;font-weight:700;line-height:1.4}
.tag.teal{background:var(--green-soft);color:#18776b}
.tag.orange{background:#fff1e4;color:#aa651f}
.case-body h3{font-size:21px;line-height:1.4;font-weight:800;margin:0 0 8px;color:var(--ink)}
.case-body p{color:var(--muted);font-size:14px;line-height:1.75;margin:0}
.case-fields{display:flex;flex-wrap:wrap;gap:13px 18px;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line)}
.case-fields span{font-size:12px;color:var(--ink-2);font-weight:600}
.case-fields i{color:var(--teal);margin-right:5px}
.case-arrow{display:flex;align-items:center;justify-content:center;width:72px;border-left:1px solid var(--line);color:var(--blue);font-size:18px;transition:.2s}
.case-item:hover .case-arrow{background:var(--blue);color:#fff}
.more-row{display:flex;justify-content:center;margin-top:30px}
.method-section{background:var(--pale);overflow:hidden}
.method-board{position:relative;background:#fff;border-radius:22px;border:1px solid #dcebf0;padding:38px 34px;box-shadow:var(--shadow)}
.method-line{position:absolute;left:10%;right:10%;top:82px;border-top:2px dashed #bad5e1}
.method-grid{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.method-step{position:relative;padding-top:59px}
.method-dot{position:absolute;top:31px;left:0;width:24px;height:24px;border-radius:50%;border:6px solid #dff2ef;background:var(--teal);box-shadow:0 0 0 5px #fff}
.method-step:nth-child(2) .method-dot,.method-step:nth-child(4) .method-dot{background:var(--blue);border-color:#dceeff}
.method-num{font-size:13px;color:var(--blue);font-weight:800;letter-spacing:.08em}
.method-step h3{font-size:17px;font-weight:800;margin:7px 0;color:var(--ink)}
.method-step p{font-size:13px;color:var(--muted);line-height:1.7;margin:0}
.capability-section{background:#fff}
.cap-grid{display:grid;grid-template-columns:1.25fr .85fr 1fr;grid-template-rows:auto auto;gap:18px}
.cap-card{padding:29px;background:var(--pale);border:1px solid #e1edf1;border-radius:var(--radius);min-height:205px;transition:.25s ease}
.cap-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);background:#fff}
.cap-card.main{grid-row:span 2;background:var(--deep);color:#fff;padding:34px}
.cap-card.main h3,.cap-card.main p{color:#fff}
.cap-card.main p{color:#c9dce1}
.cap-icon{width:45px;height:45px;border-radius:13px;display:grid;place-items:center;background:#dceeff;color:var(--blue);font-size:19px;margin-bottom:20px}
.cap-card.main .cap-icon{background:rgba(111,208,191,.17);color:#86e1d1}
.cap-card h3{font-size:20px;font-weight:800;line-height:1.4;margin:0 0 9px}
.cap-card p{color:var(--muted);font-size:14px;line-height:1.75;margin:0}
.cap-card:nth-child(4){background:#edf8f5}
.scene-section{background:var(--warm)}
.scene-layout{display:grid;grid-template-columns:1.03fr .97fr;gap:44px;align-items:center}
.venue-map{min-height:420px;background:#e8f4fb;border-radius:22px;position:relative;overflow:hidden;border:1px solid #d4e6ee}
.venue-map:before{content:"";position:absolute;inset:30px;border:1px dashed #a7c9d7;border-radius:50%;transform:rotate(-13deg)}
.map-track{position:absolute;width:68%;height:55%;left:16%;top:23%;border:18px solid rgba(22,119,210,.17);border-radius:48% 55% 44% 52%;transform:rotate(-20deg)}
.map-track:after{content:"";position:absolute;inset:23px;border:2px dashed #249c8a;border-radius:inherit}
.map-node{position:absolute;z-index:2;width:42px;height:42px;border-radius:50%;background:#fff;box-shadow:0 8px 18px rgba(29,74,91,.15);display:grid;place-items:center;color:var(--blue);font-size:16px}
.map-node.one{left:23%;top:24%}.map-node.two{right:18%;top:34%;color:var(--teal)}.map-node.three{left:41%;bottom:18%;color:var(--orange)}.map-node.four{right:33%;bottom:16%;color:var(--teal)}
.map-caption{position:absolute;left:26px;bottom:22px;right:26px;background:rgba(255,255,255,.88);backdrop-filter:blur(8px);padding:13px 15px;border-radius:12px;font-size:13px;color:var(--ink-2);font-weight:700}
.scene-list{display:grid;gap:11px}
.scene-row{display:flex;gap:15px;align-items:flex-start;padding:15px 0;border-bottom:1px solid var(--line)}
.scene-row:last-child{border-bottom:0}
.scene-row .scene-index{width:31px;height:31px;border-radius:9px;background:var(--blue-soft);color:var(--blue);font-size:12px;font-weight:800;display:grid;place-items:center;flex:0 0 auto}
.scene-row h3{font-size:17px;font-weight:800;margin:0 0 3px}
.scene-row p{color:var(--muted);font-size:13px;line-height:1.65;margin:0}
.data-section{background:var(--pale)}
.data-panel{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;padding:38px;background:#fff;border:1px solid #dceaf0;border-radius:22px;box-shadow:var(--shadow)}
.data-label{display:flex;justify-content:space-between;gap:15px;font-size:14px;font-weight:800;color:var(--ink);margin:0 0 8px}
.data-label span:last-child{color:var(--blue)}
.metric-bar{height:9px;border-radius:99px;background:#e4eef3;overflow:hidden;margin-bottom:24px}
.metric-bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--blue),#49a1e8)}
.metric-bar.teal i{background:linear-gradient(90deg,var(--teal),#71cbbd)}
.metric-bar.orange i{background:linear-gradient(90deg,#d98536,#e9ac67)}
.data-note{display:grid;gap:13px}
.data-note-item{display:flex;gap:12px;padding:14px 15px;border-radius:12px;background:var(--pale)}
.data-note-item i{color:var(--teal);margin-top:5px}
.data-note-item strong{display:block;font-size:14px;margin-bottom:2px}
.data-note-item span{display:block;font-size:13px;line-height:1.6;color:var(--muted)}
.faq-contact{background:#fff}
.faq-wrap{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:start}
.accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;margin-bottom:11px;background:#fff}
.accordion-button{padding:18px 20px;font-size:16px;font-weight:800;color:var(--ink);box-shadow:none!important;background:#fff}
.accordion-button:not(.collapsed){background:var(--blue-soft);color:var(--blue-dark)}
.accordion-button:after{background-size:15px}
.accordion-body{padding:0 20px 19px;color:var(--muted);font-size:14px;line-height:1.8}
.ask-panel{background:var(--deep);color:#fff;border-radius:22px;padding:35px;position:relative;overflow:hidden}
.ask-panel:after{content:"";position:absolute;width:210px;height:210px;border:1px solid rgba(135,225,209,.25);border-radius:50%;right:-92px;bottom:-100px}
.ask-panel>*{position:relative;z-index:1}
.ask-panel .section-eyebrow{color:#90ded0}
.ask-panel .section-eyebrow:before{background:#90ded0}
.ask-panel h2{font-size:30px;line-height:1.35;margin:0 0 12px;color:#fff;font-weight:800}
.ask-panel p{font-size:14px;color:#c8dce1;margin:0 0 22px}
.ask-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.ask-tags span{font-size:12px;padding:5px 9px;border-radius:999px;border:1px solid rgba(255,255,255,.23);color:#e9f6f5}
footer{background:#0d2b36;color:#bed0d5;padding:72px 0 22px}
.footer-brand{color:#fff;font-size:21px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:17px}
.footer-copy{font-size:14px;line-height:1.85;max-width:330px;margin:0;color:#b5cbd1}
.footer-heading{font-size:15px;color:#fff;font-weight:800;margin:4px 0 17px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:10px}
.footer-links a,.footer-contact a{font-size:14px;color:#b8cdd3;transition:.2s}
.footer-links a:hover,.footer-contact a:hover{color:#8cddcf}
.footer-contact p{font-size:14px;line-height:1.65;margin:0 0 9px;color:#b8cdd3}
.footer-bottom{border-top:1px solid rgba(212,235,237,.15);margin-top:50px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;font-size:13px;color:#91adb5}
.footer-bottom a{color:#b7d5d8}
.footer-bottom a:hover{color:#8cddcf}
@media (max-width:1199px){
 .navbar-brand{margin-right:16px}.navbar-nav .nav-link{padding:9px 7px!important;font-size:13px}.nav-cta{margin-left:9px;font-size:13px}
 .case-item{grid-template-columns:240px 1fr auto}.cap-grid{grid-template-columns:1.15fr .9fr 1fr}
}
@media (max-width:991px){
 .main-header{top:0}.topline{display:none}.navbar-collapse{padding:15px 0 8px}.navbar-nav{gap:4px;padding:7px 0}.navbar-nav .nav-link{padding:11px 12px!important}.nav-cta{margin:12px 0 0;width:100%;min-height:46px}
 .topic-nav{top:76px}.case-item{grid-template-columns:230px 1fr}.case-arrow{display:none}
 .method-grid{grid-template-columns:repeat(3,1fr);row-gap:25px}.method-line{display:none}.method-step{padding-top:47px}.method-dot{top:15px}
 .cap-grid{grid-template-columns:repeat(2,1fr)}.cap-card.main{grid-row:span 1;grid-column:span 2}
 .scene-layout,.data-panel,.faq-wrap{grid-template-columns:1fr;gap:32px}
}
@media (max-width:767px){
 body{font-size:15px}.site-container{padding:0 18px}section{padding:65px 0}.page-hero{min-height:345px}.page-hero-inner{padding:58px 0}.page-hero h1{font-size:34px}.page-hero p{font-size:15px}
 .section-head{display:block;margin-bottom:31px}.section-desc{font-size:15px}
 .case-item{grid-template-columns:1fr}.case-image{height:205px}.case-body{padding:21px}.case-body h3{font-size:19px}
 .method-board{padding:26px 20px}.method-grid{grid-template-columns:1fr;gap:17px}.method-step{padding:0 0 0 48px;min-height:65px}.method-dot{left:0;top:0}.method-num{font-size:12px}.method-step h3{margin:2px 0 4px}
 .cap-grid{grid-template-columns:1fr}.cap-card.main{grid-column:span 1}.cap-card{min-height:auto;padding:25px}
 .venue-map{min-height:330px}.data-panel{padding:25px 20px}.ask-panel{padding:28px 24px}.ask-panel h2{font-size:27px}
 footer{padding-top:55px}.footer-bottom{display:block;line-height:2}.footer-bottom div+div{margin-top:7px}
}
@media (max-width:520px){
 .navbar-brand{font-size:18px}.brand-mark{width:32px;height:32px}.page-hero h1{font-size:31px}.hero-stamp{font-size:12px}
 .topic-link{font-size:12px;padding:7px 12px}.case-fields{gap:8px 12px}.case-fields span{font-size:11px}
 .venue-map{min-height:280px}.map-caption{left:16px;right:16px;bottom:16px;font-size:12px}.map-node{width:36px;height:36px}
 .accordion-button{font-size:14px;padding:16px}.accordion-body{padding:0 16px 16px}.btn-main,.btn-outline{width:100%;min-height:48px}
}
@media (prefers-reduced-motion:reduce){
 *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}