/* roulang page: index */
:root{
      --ink:#1d2926;
      --muted:#64706c;
      --paper:#f5f4f0;
      --white:#fffefa;
      --line:#d8ddd7;
      --teal:#0b5e59;
      --teal-dark:#074743;
      --mint:#dcebe5;
      --fog:#e9ece5;
      --warm:#ebe8e1;
      --charcoal:#18201e;
      --charcoal-2:#25302d;
      --accent:#bfdbc9;
      --radius:18px;
      --radius-sm:12px;
      --shadow:0 14px 34px rgba(24,32,30,.07);
      --shadow-hover:0 18px 38px rgba(15,44,40,.13);
      --container:1240px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:100px}
    body{margin:0;background:var(--paper);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{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button{border:0}
    ::selection{background:var(--accent);color:var(--ink)}
    .container{max-width:var(--container)}
    .section{padding:108px 0;position:relative}
    .section-soft{background:#eff0eb}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
    .eyebrow:before{content:"";width:26px;height:1px;background:currentColor}
    .section-title{max-width:740px;margin:12px 0 16px;font-size:clamp(30px,3.2vw,43px);line-height:1.25;letter-spacing:-.04em;font-weight:800}
    .section-intro{max-width:690px;margin:0;color:var(--muted)}
    .btn-brand,.btn-outline-brand{min-height:48px;padding:11px 22px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-size:15px;font-weight:800;transition:transform .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease}
    .btn-brand{background:var(--teal);color:#fff;border:1px solid var(--teal);box-shadow:0 8px 18px rgba(11,94,89,.18)}
    .btn-brand:hover{background:var(--teal-dark);border-color:var(--teal-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(11,94,89,.24)}
    .btn-outline-brand{border:1px solid rgba(255,255,255,.6);color:#fff;background:rgba(255,255,255,.07)}
    .btn-outline-brand:hover{background:#fff;color:var(--teal);transform:translateY(-2px)}
    .btn-light-outline{border:1px solid var(--line);color:var(--ink);background:transparent}
    .btn-light-outline:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
    .btn-brand:focus-visible,.btn-outline-brand:focus-visible,.btn-light-outline:focus-visible,.nav-link:focus-visible,.faq-button:focus-visible,.form-control:focus,.form-select:focus{outline:3px solid rgba(11,94,89,.26);outline-offset:3px;box-shadow:none}
    .topbar{height:34px;background:var(--charcoal);color:#ced6d1;font-size:12px}
    .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .topbar-info{display:flex;gap:20px;align-items:center}
    .topbar a{color:#e5ebe7}
    .site-header{position:sticky;top:0;z-index:1040;background:rgba(255,254,250,.96);border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease}
    .site-header.scrolled{box-shadow:0 6px 18px rgba(24,32,30,.06);border-color:var(--line)}
    .main-nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:850;font-size:18px;letter-spacing:-.04em}
    .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--teal);display:grid;place-items:center;position:relative}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.85)}
    .brand-mark:before{width:17px;height:10px;border-radius:3px}
    .brand-mark:after{width:5px;height:5px;border-radius:50%;background:#fff;border:0;right:7px;top:8px}
    .nav-list{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}
    .nav-link{display:block;padding:11px 13px;border-radius:8px;color:#495550;font-size:14px;font-weight:700;transition:color .2s,background .2s}
    .nav-link:hover,.nav-link.active{color:var(--teal);background:#e8f0eb}
    .nav-cta{white-space:nowrap}
    .menu-toggle{display:none;width:46px;height:46px;border-radius:10px;background:#e9eee9;color:var(--ink);font-size:22px}
    .hero{position:relative;min-height:720px;background:var(--charcoal);color:#fff;overflow:hidden}
    .hero .carousel,.hero .carousel-inner,.hero .carousel-item{height:720px}
    .hero-slide{height:100%;background-size:cover;background-position:center;position:relative}
    .hero-slide:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(17,27,25,.89) 0%,rgba(17,27,25,.61) 46%,rgba(17,27,25,.20) 100%)}
    .hero-slide.two:after{background:linear-gradient(90deg,rgba(11,34,31,.92),rgba(11,34,31,.5) 56%,rgba(11,34,31,.24))}
    .hero-content{position:relative;z-index:2;height:100%;display:flex;align-items:center}
    .hero-copy{max-width:790px;padding:62px 0 92px}
    .hero-label{display:inline-flex;align-items:center;gap:9px;border:1px solid rgba(220,235,229,.46);background:rgba(10,40,36,.36);padding:7px 11px;border-radius:7px;color:#dcebe5;font-size:13px;font-weight:700;letter-spacing:.08em}
    .hero h1{max-width:780px;margin:20px 0 20px;font-size:clamp(40px,5vw,64px);line-height:1.14;letter-spacing:-.055em;font-weight:850}
    .hero p{max-width:735px;margin:0;color:#e1e9e4;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}
    .hero-meta{display:flex;align-items:center;gap:22px;margin-top:38px;color:#cfddd6;font-size:13px}
    .hero-meta strong{color:#fff;font-size:18px;margin-right:4px}
    .hero-controls{position:absolute;z-index:4;bottom:34px;left:50%;transform:translateX(-50%);width:min(calc(100% - 48px),1240px);display:flex;align-items:center;gap:14px;color:#fff}
    .slide-count{font-weight:800;font-size:14px;letter-spacing:.1em}
    .slide-line{width:140px;height:2px;background:rgba(255,255,255,.28);position:relative}
    .slide-line:after{content:"";position:absolute;height:100%;left:0;top:0;width:50%;background:#c1dfd0}
    .hero-arrow{width:42px;height:42px;border:1px solid rgba(255,255,255,.45);background:transparent;border-radius:50%;color:#fff;display:grid;place-items:center;transition:.2s}
    .hero-arrow:hover{background:#fff;color:var(--teal)}
    .value-row{margin-top:-43px;position:relative;z-index:5}
    .value-card{height:100%;padding:31px 30px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .22s ease,border-color .22s ease}
    .value-card:hover{transform:translateY(-6px);border-color:var(--teal)}
    .value-num{color:#9aa9a1;font-size:13px;font-weight:800;letter-spacing:.12em}
    .value-card h2{font-size:21px;line-height:1.35;margin:27px 0 10px;font-weight:800}
    .value-card p{color:var(--muted);font-size:15px;margin:0;line-height:1.75}
    .value-icon{float:right;width:38px;height:38px;border-top:1px solid var(--teal);border-bottom:1px solid var(--teal);position:relative}
    .value-icon:after{content:"";position:absolute;width:15px;height:15px;border:1px solid var(--teal);left:11px;top:10px;border-radius:2px}
    .architecture{display:grid;grid-template-columns:1fr 1.06fr;gap:75px;align-items:center}
    .feature-tags{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}
    .tag{border:1px solid #cddbd3;background:#f6faf7;color:var(--teal);padding:5px 10px;border-radius:999px;font-size:13px;font-weight:700}
    .check-list{list-style:none;margin:25px 0 0;padding:0}
    .check-list li{padding:12px 0 12px 30px;border-bottom:1px solid var(--line);position:relative;color:#40504a}
    .check-list li:before{content:"✓";position:absolute;left:3px;color:var(--teal);font-weight:900}
    .arch-panel{padding:25px;background:#e5e9e3;border-radius:24px;position:relative;overflow:hidden}
    .arch-panel:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.62),transparent 55%);pointer-events:none}
    .screen-top{height:42px;background:var(--charcoal);border-radius:12px 12px 4px 4px;padding:14px;display:flex;gap:6px;align-items:center}
    .screen-top i{display:block;width:6px;height:6px;border-radius:50%;background:#91b3a5}
    .arch-stack{position:relative;z-index:1;padding:18px}
    .layer{margin:10px 0;padding:15px 18px;border:1px solid rgba(11,94,89,.18);background:rgba(255,255,255,.82);border-radius:10px;display:flex;justify-content:space-between;align-items:center;gap:15px;box-shadow:0 6px 14px rgba(24,32,30,.04)}
    .layer span{font-size:13px;color:var(--teal);font-weight:800}
    .layer b{font-size:15px}
    .layer:nth-child(2){margin-left:23px}.layer:nth-child(3){margin-left:45px}.layer:nth-child(4){margin-left:68px}
    .six-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px;margin-top:48px}
    .cap-card{min-height:244px;padding:25px;border:1px solid var(--line);background:var(--white);border-radius:15px;position:relative;overflow:hidden;transition:.22s}
    .cap-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#9cbeb0}
    .cap-code{font-size:12px;letter-spacing:.12em;color:var(--teal);font-weight:800}
    .cap-graphic{height:48px;width:78px;margin:20px 0;background:repeating-linear-gradient(90deg,var(--mint) 0 7px,transparent 7px 12px);border-bottom:2px solid var(--teal);position:relative}
    .cap-graphic:after{content:"";position:absolute;width:22px;height:22px;border:2px solid var(--teal);right:8px;top:8px;border-radius:50%}
    .cap-card:nth-child(2) .cap-graphic:after{border-radius:2px;width:36px}
    .cap-card:nth-child(3) .cap-graphic:after{border-left:0;border-bottom:0;transform:rotate(45deg)}
    .cap-card h3{font-size:19px;margin:0 0 9px;font-weight:800}
    .cap-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
    .cap-meter{position:absolute;bottom:20px;left:25px;right:25px;height:3px;background:#e5e9e5}
    .cap-meter span{display:block;height:100%;background:var(--teal)}
    .scene-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:stretch;margin-top:42px}
    .scene-tabs{display:flex;flex-direction:column;gap:8px}
    .scene-tab{min-height:72px;border:1px solid transparent;border-left:3px solid transparent;padding:14px 17px;background:transparent;text-align:left;color:var(--muted);transition:.2s}
    .scene-tab b{display:block;color:var(--ink);font-size:16px}
    .scene-tab small{font-size:13px}
    .scene-tab.active,.scene-tab:hover{background:var(--white);border-color:var(--line);border-left-color:var(--teal);border-radius:0 11px 11px 0;color:var(--teal)}
    .scene-stage{display:grid;grid-template-columns:1.08fr .92fr;background:var(--white);border-radius:20px;overflow:hidden;border:1px solid var(--line);min-height:380px}
    .scene-stage img{height:100%;width:100%;object-fit:cover}
    .scene-copy{padding:38px 31px}
    .scene-copy h3{font-size:27px;line-height:1.3;font-weight:800;margin:8px 0 22px}
    .trigger-flow{list-style:none;padding:0;margin:0}
    .trigger-flow li{padding:14px 0;border-top:1px solid var(--line)}
    .trigger-flow b{display:block;color:var(--teal);font-size:13px;margin-bottom:3px}
    .dark-case{background:var(--charcoal);color:#f5f7f3;overflow:hidden}
    .dark-case .section-intro{color:#b9c9c0}
    .case-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:55px;align-items:center;margin-top:42px}
    .case-image{min-height:410px;border-radius:19px;overflow:hidden;position:relative;background:url('/assets/images/backpic/back-4.webp') center/cover}
    .case-image:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(9,49,44,.22),rgba(10,15,14,.64))}
    .case-overlay{position:absolute;z-index:2;left:28px;right:28px;bottom:25px;padding:18px;border:1px solid rgba(203,233,216,.32);background:rgba(19,32,29,.72);border-radius:11px}
    .case-overlay b{display:block;font-size:19px}.case-overlay span{color:#c2d6cb;font-size:14px}
    .matrix{border-top:1px solid rgba(255,255,255,.2)}
    .matrix-row{display:grid;grid-template-columns:1.45fr 1fr 1fr;gap:10px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.16);font-size:14px}
    .matrix-row.head{color:#a9c8b9;font-size:12px;font-weight:800;letter-spacing:.08em}
    .yes{color:#bce1cc;font-weight:800}.soft{color:#9baaa2}
    .stories-grid{display:grid;grid-template-columns:1fr 1fr;gap:46px;margin-top:46px}
    .story{background:var(--white);border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
    .story:nth-child(2){margin-top:60px}
    .story img{width:100%;height:270px;object-fit:cover}
    .story-body{padding:26px 28px 30px}
    .story-role{font-size:13px;color:var(--teal);font-weight:800}
    .story h3{font-weight:800;font-size:23px;margin:8px 0 9px}
    .story p{color:var(--muted);font-size:15px;margin:0}
    .story-path{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
    .story-path span{font-size:12px;background:#eef3ef;padding:5px 9px;border-radius:5px;color:#4d6259}
    .stats{background:var(--teal);color:#fff;padding:48px 0}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
    .stat-item{padding-left:20px;border-left:1px solid rgba(255,255,255,.38)}
    .stat-num{font-size:37px;font-weight:850;letter-spacing:-.05em;line-height:1.15}
    .stat-label{font-size:14px;color:#d4e8de;margin-top:7px}
    .reviews-track{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:43px}
    .review{background:#e7e9e1;border-radius:15px;padding:27px;min-height:258px;display:flex;flex-direction:column}
    .quote{font-size:42px;line-height:.8;color:var(--teal);font-family:Georgia,serif}
    .review p{font-size:16px;color:#384842;margin:16px 0 auto}
    .review-foot{padding-top:18px;border-top:1px solid #cbd2ca;font-size:13px;color:#627069}
    .review-foot b{display:block;color:var(--ink);font-size:14px}
    .insights-layout{display:grid;grid-template-columns:1.18fr .82fr;gap:38px;margin-top:40px}
    .news-list{border-top:1px solid var(--line)}
    .news-item{display:grid;grid-template-columns:100px 1fr auto;gap:19px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
    .news-date{color:var(--teal);font-size:13px;font-weight:800}
    .news-item h3{font-size:18px;line-height:1.45;margin:0 0 4px;font-weight:800}
    .news-item p{font-size:14px;line-height:1.55;color:var(--muted);margin:0}
    .news-arrow{color:var(--teal);font-size:23px}
    .featured-news{background:var(--white);border:1px solid var(--line);border-radius:16px;overflow:hidden}
    .featured-news img{height:202px;width:100%;object-fit:cover}
    .featured-news-body{padding:22px}
    .featured-news h3{font-size:20px;font-weight:800;line-height:1.4;margin:10px 0}
    .featured-news p{font-size:14px;color:var(--muted);margin:0}
    .faq-wrap{max-width:970px;margin:42px auto 0}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-button{width:100%;min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:transparent;text-align:left;color:var(--ink);font-weight:800;font-size:17px;padding:16px 3px}
    .faq-button span:last-child{font-size:25px;font-weight:400;color:var(--teal);transition:transform .22s}
    .faq-button[aria-expanded="true"] span:last-child{transform:rotate(45deg)}
    .faq-answer{max-height:0;overflow:hidden;transition:max-height .28s ease}
    .faq-answer.open{max-height:220px}
    .faq-answer p{padding:0 45px 20px 3px;color:var(--muted);margin:0;font-size:15px}
    .delivery-strip{padding:62px 0;background:#e5ece6}
    .delivery-head{display:flex;justify-content:space-between;gap:30px;align-items:end}
    .delivery-head .section-title{margin-bottom:0}
    .delivery-flow{display:grid;grid-template-columns:repeat(5,1fr);margin-top:36px;position:relative}
    .delivery-flow:before{content:"";position:absolute;left:10%;right:10%;top:18px;height:1px;background:#9bb7a9}
    .delivery-step{position:relative;padding:0 16px 0 0}
    .delivery-step i{display:grid;place-items:center;width:37px;height:37px;border-radius:50%;background:var(--teal);color:#fff;font-style:normal;font-size:13px;font-weight:800;position:relative;z-index:1}
    .delivery-step b{display:block;font-size:15px;margin:13px 0 4px}
    .delivery-step span{font-size:13px;color:var(--muted);line-height:1.5;display:block}
    .contact-section{background:var(--white)}
    .contact-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:72px;align-items:start}
    .contact-note{font-size:17px;color:var(--muted);max-width:460px}
    .contact-detail{margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
    .contact-detail div{margin:8px 0;color:#495751}
    .contact-form{padding:32px;border:1px solid var(--line);box-shadow:var(--shadow);background:#fafbf8;border-radius:18px}
    .form-label{font-size:14px;font-weight:800;margin-bottom:7px}
    .form-control,.form-select{min-height:47px;border-color:#cbd4ce;border-radius:9px;background:#fff;color:var(--ink)}
    textarea.form-control{min-height:105px;resize:vertical}
    .form-control::placeholder{color:#9da7a1}
    .form-hint{font-size:12px;color:var(--muted);margin-top:10px}
    .form-status{display:none;margin-top:12px;padding:10px 12px;border-radius:8px;font-size:14px}
    .form-status.success{display:block;background:#e4f0e8;color:#246047}.form-status.error{display:block;background:#f7e8e5;color:#963f32}
    .site-footer{background:#17211e;color:#d4ded8;padding:70px 0 98px}
    .footer-grid{display:grid;grid-template-columns:1.5fr .85fr .85fr 1.15fr;gap:42px}
    .footer-brand{color:#fff;font-size:20px;font-weight:800}.footer-brand small{display:block;color:#a7bbb0;font-weight:500;font-size:13px;margin-top:6px}
    .footer-copy{font-size:14px;color:#aebeb5;margin:18px 0 0;max-width:330px}
    .footer-heading{font-size:14px;color:#fff;font-weight:800;margin-bottom:16px}
    .footer-links{list-style:none;margin:0;padding:0}.footer-links li{margin:9px 0;font-size:14px;color:#b2c1b9}.footer-links a:hover{color:#d7eee1}
    .footer-bottom{margin-top:52px;padding-top:19px;border-top:1px solid rgba(255,255,255,.14);font-size:12px;color:#93a79b;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
    .fixed-cta{position:fixed;z-index:1030;left:50%;bottom:16px;transform:translateX(-50%);width:min(760px,calc(100% - 32px));padding:9px 10px 9px 18px;background:rgba(255,254,250,.94);border:1px solid rgba(195,209,201,.88);box-shadow:0 12px 35px rgba(24,32,30,.14);border-radius:14px;display:flex;align-items:center;justify-content:space-between;gap:14px;backdrop-filter:blur(9px)}
    .fixed-cta p{margin:0;font-weight:800;font-size:14px}.fixed-buttons{display:flex;gap:8px}.fixed-cta .btn-brand,.fixed-cta .btn-light-outline{min-height:42px;padding:8px 15px;font-size:13px}
    @media (max-width:991.98px){
      .nav-list,.nav-cta{display:none}.menu-toggle{display:grid;place-items:center}
      .mobile-menu{position:fixed;inset:0;z-index:1100;display:none}.mobile-menu.open{display:block}
      .mobile-shade{position:absolute;inset:0;background:rgba(12,22,19,.48)}
      .mobile-panel{position:absolute;right:0;top:0;width:min(390px,92vw);height:100%;background:var(--white);padding:28px;box-shadow:-16px 0 35px rgba(0,0,0,.12);transform:translateX(100%);transition:transform .25s ease}
      .mobile-menu.open .mobile-panel{transform:translateX(0)}
      .mobile-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.close-menu{width:45px;height:45px;border-radius:9px;background:#edf0eb;font-size:24px}
      .mobile-links{padding:0;margin:0;list-style:none}.mobile-links a{display:block;min-height:52px;padding:14px 0;border-bottom:1px solid var(--line);font-weight:800}.mobile-links a.active{color:var(--teal)}
      .mobile-panel .btn-brand{width:100%;margin-top:26px}
      .architecture,.case-grid,.contact-grid{grid-template-columns:1fr;gap:38px}
      .six-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (min-width:992px){.mobile-menu{display:none!important}}
    @media (max-width:767.98px){
      .topbar{display:none}.main-nav{height:66px}.hero,.hero .carousel,.hero .carousel-inner,.hero .carousel-item{height:650px}.hero-copy{padding:50px 0 88px}.hero h1{font-size:40px}.hero p{font-size:15px}.hero-meta{gap:14px}
      .section{padding:70px 0}.value-row{margin-top:-25px}.value-card{padding:25px}.value-row .row{gap:14px}.scene-wrap,.scene-stage,.insights-layout{grid-template-columns:1fr}.scene-tabs{flex-direction:row;overflow:auto;padding-bottom:3px}.scene-tab{min-width:145px;border-left:1px solid transparent;border-bottom:3px solid transparent}.scene-tab.active,.scene-tab:hover{border-left-color:var(--line);border-bottom-color:var(--teal);border-radius:10px}.scene-stage img{height:250px}.stories-grid{grid-template-columns:1fr;gap:18px}.story:nth-child(2){margin-top:0}.stats-grid{grid-template-columns:repeat(2,1fr);gap:26px}.reviews-track{display:flex;overflow:auto;padding-bottom:8px}.review{min-width:285px}.news-item{grid-template-columns:72px 1fr}.news-arrow{display:none}.delivery-head{display:block}.delivery-head .btn-light-outline{margin-top:20px}.delivery-flow{grid-template-columns:1fr 1fr;gap:25px}.delivery-flow:before{display:none}.contact-form{padding:24px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.fixed-cta{bottom:9px}.fixed-cta p{display:none}
    }
    @media (max-width:520px){
      .container{padding-left:20px;padding-right:20px}.hero h1{font-size:35px}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions a{width:100%}.hero-meta{font-size:12px}.hero-controls{width:calc(100% - 40px);bottom:20px}.slide-line{flex:1}.section-title{font-size:29px}.six-grid{grid-template-columns:1fr}.cap-card{min-height:215px}.layer:nth-child(2),.layer:nth-child(3),.layer:nth-child(4){margin-left:0}.arch-panel{padding:12px}.arch-stack{padding:12px}.layer{padding:12px}.case-image{min-height:330px}.matrix-row{grid-template-columns:1.2fr .8fr .8fr;font-size:12px}.story img{height:220px}.stats-grid{gap:18px}.stat-num{font-size:31px}.news-item{grid-template-columns:1fr;gap:5px}.delivery-flow{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{padding-bottom:10px}.fixed-cta{width:100%;bottom:0;border-radius:0;padding:7px 10px}.fixed-buttons{width:100%}.fixed-buttons a{width:50%}.fixed-cta .btn-brand,.fixed-cta .btn-light-outline{border-radius:8px}
    }
    @media (prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}

/* roulang page: category2 */
:root{
 --ink:#1d2926;--muted:#64706c;--paper:#f5f4f0;--white:#fffefa;--line:#d8ddd7;
 --teal:#0b5e59;--teal-dark:#074743;--mint:#dcebe5;--fog:#e9ece5;--warm:#ebe8e1;
 --charcoal:#18201e;--charcoal-2:#25302d;--accent:#bfdbc9;--radius:18px;--radius-sm:12px;
 --shadow:0 14px 34px rgba(24,32,30,.07);--shadow-hover:0 18px 38px rgba(15,44,40,.13);--container:1240px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:104px}
body{margin:0;background:var(--paper);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{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
button{border:0}
.container{max-width:var(--container)}
.section{padding:104px 0;position:relative}
.section-soft{background:#eff0eb}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.12em}
.eyebrow:before{content:"";width:26px;height:1px;background:currentColor}
.section-title{max-width:790px;margin:12px 0 14px;font-size:clamp(30px,3.15vw,42px);line-height:1.25;letter-spacing:-.045em;font-weight:850}
.section-intro{max-width:720px;margin:0;color:var(--muted)}
.btn-brand,.btn-outline-brand,.btn-light-outline{min-height:48px;padding:11px 21px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:800;transition:transform .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease}
.btn-brand{background:var(--teal);border:1px solid var(--teal);color:#fff;box-shadow:0 8px 18px rgba(11,94,89,.17)}
.btn-brand:hover{background:var(--teal-dark);border-color:var(--teal-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(11,94,89,.23)}
.btn-outline-brand{background:transparent;border:1px solid rgba(255,255,255,.7);color:#fff}
.btn-outline-brand:hover{background:#fff;color:var(--teal);transform:translateY(-2px)}
.btn-light-outline{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn-light-outline:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
.btn-brand:active,.btn-outline-brand:active,.btn-light-outline:active{transform:translateY(0)}
.btn-brand:focus-visible,.btn-outline-brand:focus-visible,.btn-light-outline:focus-visible,.nav-link:focus-visible,.menu-toggle:focus-visible,.faq-button:focus-visible,.form-control:focus,.form-select:focus{outline:3px solid rgba(11,94,89,.25);outline-offset:3px;box-shadow:none}
.topbar{height:34px;background:var(--charcoal);color:#ced6d1;font-size:12px}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
.topbar-info{display:flex;align-items:center;gap:20px}
.topbar a{color:#e5ebe7}
.site-header{position:sticky;top:0;z-index:1040;background:rgba(255,254,250,.97);border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease}
.site-header.scrolled{box-shadow:0 6px 18px rgba(24,32,30,.06);border-color:var(--line)}
.main-nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:850;font-size:18px;letter-spacing:-.04em}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--teal);display:grid;place-items:center;position:relative;flex:none}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.85)}
.brand-mark:before{width:17px;height:10px;border-radius:3px}
.brand-mark:after{width:5px;height:5px;border-radius:50%;background:#fff;border:0;right:7px;top:8px}
.nav-list{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}
.nav-link{display:block;padding:11px 13px;border-radius:8px;color:#495550;font-size:14px;font-weight:700;transition:color .2s,background .2s}
.nav-link:hover,.nav-link.active{color:var(--teal);background:#e8f0eb}
.nav-cta{white-space:nowrap}
.menu-toggle{display:none;width:46px;height:46px;border-radius:10px;background:#e9eee9;color:var(--ink);font-size:22px}
.page-hero{position:relative;min-height:395px;display:flex;align-items:center;overflow:hidden;color:#fff;background:var(--charcoal)}
.page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(18,31,28,.94),rgba(18,31,28,.63) 50%,rgba(18,31,28,.22));z-index:1}
.page-hero:after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(220,235,229,.11) 1px,transparent 1px),linear-gradient(90deg,rgba(220,235,229,.09) 1px,transparent 1px);background-size:70px 70px;opacity:.25;z-index:1}
.page-hero .container{position:relative;z-index:2;padding-top:44px;padding-bottom:48px}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:9px;color:#d7e3dc;font-size:13px}
.breadcrumbs span{opacity:.65}
.page-hero h1{max-width:780px;margin:19px 0 15px;font-size:clamp(37px,4.7vw,58px);line-height:1.15;letter-spacing:-.055em;font-weight:850}
.page-hero p{max-width:690px;margin:0;color:#e2ebe5;font-size:17px}
.hero-chip{display:inline-flex;margin-top:23px;padding:6px 11px;border:1px solid rgba(220,235,229,.45);border-radius:7px;background:rgba(255,255,255,.08);font-size:13px;color:#dcebe5}
.filter-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:23px 25px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.filter-label{font-size:15px;font-weight:800;white-space:nowrap}
.filter-tags{display:flex;flex-wrap:wrap;gap:9px}
.filter-tag{padding:7px 12px;border:1px solid #cfdbd5;border-radius:999px;background:#fff;color:#50605a;font-size:13px;font-weight:700;transition:.2s}
.filter-tag:hover,.filter-tag.active{border-color:var(--teal);background:#e7f0eb;color:var(--teal)}
.scene-grid{margin-top:46px}
.scene-card{height:100%;overflow:hidden;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.scene-card:hover{transform:translateY(-6px);border-color:var(--teal);box-shadow:var(--shadow-hover)}
.scene-image{height:208px;position:relative;overflow:hidden;background:var(--fog)}
.scene-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.scene-card:hover .scene-image img{transform:scale(1.045)}
.scene-no{position:absolute;left:18px;bottom:15px;color:#fff;font-size:13px;font-weight:850;letter-spacing:.12em;text-shadow:0 2px 12px rgba(0,0,0,.5)}
.scene-body{padding:24px 24px 25px}
.scene-body h2{margin:0 0 10px;font-size:22px;line-height:1.32;font-weight:850}
.scene-body p{margin:0;color:var(--muted);font-size:15px}
.scene-points{display:grid;gap:8px;margin:19px 0 0;padding:0;list-style:none;border-top:1px solid var(--line);padding-top:16px}
.scene-points li{display:flex;gap:9px;color:#43524c;font-size:14px;line-height:1.55}
.scene-points b{flex:none;color:var(--teal);font-size:12px;letter-spacing:.08em}
.more-row{margin-top:34px;text-align:center}
.process-panel{display:grid;grid-template-columns:.88fr 1.12fr;border:1px solid var(--line);background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.process-side{padding:42px;background:var(--mint)}
.process-side h2{font-size:29px;line-height:1.3;font-weight:850;margin:12px 0}
.process-side p{color:#45564e;margin:0}
.process-list{padding:28px 38px}
.process-item{display:grid;grid-template-columns:54px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
.process-item:last-child{border-bottom:0}
.process-num{width:42px;height:42px;border:1px solid #9ebaae;border-radius:50%;display:grid;place-items:center;color:var(--teal);font-size:13px;font-weight:850}
.process-item h3{font-size:18px;margin:0 0 4px;font-weight:850}
.process-item p{margin:0;color:var(--muted);font-size:14px}
.split-media{display:grid;grid-template-columns:1.02fr .98fr;gap:68px;align-items:center}
.media-frame{min-height:430px;overflow:hidden;border-radius:var(--radius);background:var(--fog);box-shadow:var(--shadow);position:relative}
.media-frame img{width:100%;height:100%;min-height:430px;object-fit:cover}
.media-note{position:absolute;left:18px;right:18px;bottom:18px;padding:13px 16px;background:rgba(255,254,250,.92);border-radius:10px;color:var(--ink);font-size:14px;font-weight:800}
.point-list{padding:0;margin:27px 0 0;list-style:none}
.point-list li{display:grid;grid-template-columns:36px 1fr;gap:14px;padding:17px 0;border-bottom:1px solid var(--line)}
.point-list li:last-child{border-bottom:0}
.point-icon{width:30px;height:30px;border-radius:9px;background:var(--mint);color:var(--teal);display:grid;place-items:center;font-size:14px;font-weight:850}
.point-list h3{margin:0 0 3px;font-size:17px;font-weight:850}
.point-list p{margin:0;color:var(--muted);font-size:14px}
.advice-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:41px}
.advice-card{padding:30px;background:var(--white);border-top:3px solid var(--teal);border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow)}
.advice-card h2{margin:0 0 17px;font-size:23px;font-weight:850}
.advice-card ul{margin:0;padding:0;list-style:none}
.advice-card li{position:relative;padding:10px 0 10px 18px;border-bottom:1px solid var(--line);color:#4a5852;font-size:15px}
.advice-card li:last-child{border-bottom:0}
.advice-card li:before{content:"";position:absolute;left:0;top:20px;width:6px;height:6px;border-radius:50%;background:var(--teal)}
.faq-wrap{max-width:940px;margin:43px auto 0}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-button{width:100%;min-height:64px;padding:17px 22px;background:transparent;color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;font-size:17px;font-weight:800}
.faq-button:after{content:"+";width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#eaf0eb;color:var(--teal);font-size:22px;font-weight:400;line-height:1;transition:transform .25s ease,background .25s ease}
.faq-button:not(.collapsed):after{content:"−";background:var(--teal);color:#fff}
.faq-answer{padding:0 22px 22px;color:var(--muted);font-size:15px}
.cta-box{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;padding:54px 58px;background:var(--charcoal);color:#fff;border-radius:var(--radius);overflow:hidden;position:relative}
.cta-box:after{content:"";position:absolute;width:340px;height:340px;right:-90px;top:-130px;border:1px solid rgba(191,219,201,.26);border-radius:50%;box-shadow:0 0 0 42px rgba(191,219,201,.05),0 0 0 84px rgba(191,219,201,.04)}
.cta-content,.contact-form{position:relative;z-index:1}
.cta-box h2{margin:13px 0 14px;font-size:clamp(29px,3vw,40px);line-height:1.25;font-weight:850;letter-spacing:-.04em}
.cta-box p{max-width:560px;color:#cedbd4;margin:0}
.contact-form{padding:24px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:12px}
.form-label{font-size:13px;color:#dcebe5;font-weight:700;margin-bottom:5px}
.form-control,.form-select{min-height:45px;border:1px solid rgba(220,235,229,.36);border-radius:8px;background:rgba(255,255,255,.96);color:var(--ink);font-size:14px}
.form-control:focus,.form-select:focus{border-color:var(--accent);background:#fff}
.form-status{min-height:21px;margin:10px 0 0;color:#dcebe5;font-size:13px}
.site-footer{background:#111a18;color:#c8d2cc;padding:65px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.45fr .8fr .8fr 1.1fr;gap:38px}
.footer-brand{color:#fff;font-size:19px;font-weight:850;letter-spacing:-.04em}
.footer-brand small{display:block;margin-top:6px;color:#9eb0a7;font-size:12px;font-weight:600;letter-spacing:0}
.footer-copy{max-width:350px;margin:18px 0 0;color:#9eadA6;font-size:14px}
.footer-heading{margin:2px 0 15px;color:#fff;font-size:14px;font-weight:850}
.footer-links{margin:0;padding:0;list-style:none}
.footer-links li{margin:0 0 9px;color:#aebbb4;font-size:14px}
.footer-links a{transition:color .2s}
.footer-links a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:18px;padding-top:25px;margin-top:42px;border-top:1px solid rgba(220,235,229,.14);color:#8f9f96;font-size:12px}
.fixed-bar{position:fixed;z-index:1030;bottom:18px;left:50%;transform:translateX(-50%);width:min(calc(100% - 40px),760px);display:flex;align-items:center;justify-content:space-between;gap:18px;padding:9px 10px 9px 20px;background:rgba(255,254,250,.94);border:1px solid rgba(216,221,215,.9);border-radius:14px;box-shadow:0 12px 32px rgba(24,32,30,.16);backdrop-filter:blur(8px)}
.fixed-bar p{margin:0;color:#46534e;font-size:14px;font-weight:700}
.fixed-actions{display:flex;gap:8px}
.fixed-actions .btn-brand,.fixed-actions .btn-light-outline{min-height:42px;padding:8px 15px;font-size:14px}
@media(max-width:1199px){.nav-link{padding:10px 9px}.split-media{gap:42px}.footer-grid{gap:25px}}
@media(max-width:991px){
 .topbar{display:none}.main-nav{height:68px}.menu-toggle{display:grid;place-items:center;margin-left:auto}.main-nav>nav{display:none}.nav-cta{display:none}
 .site-header.mobile-open .main-nav>nav{display:block;position:fixed;z-index:1050;inset:0 0 0 auto;width:min(84vw,360px);padding:88px 22px 24px;background:var(--white);box-shadow:-16px 0 42px rgba(24,32,30,.16)}
 .site-header.mobile-open .main-nav>nav:before{content:"导航";position:absolute;top:30px;left:22px;font-size:22px;font-weight:850}
 .site-header.mobile-open .nav-list{display:block}.site-header.mobile-open .nav-list li{border-bottom:1px solid var(--line)}
 .site-header.mobile-open .nav-link{min-height:52px;padding:14px 8px;border-radius:0;font-size:16px}
 .site-header.mobile-open:after{content:"";position:fixed;z-index:1045;inset:0 360px 0 0;background:rgba(18,32,29,.45)}
 .page-hero{min-height:355px}.process-panel,.cta-box{grid-template-columns:1fr}.process-side{padding:34px}.cta-box{gap:28px;padding:42px}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}
 .footer-grid>div:last-child{grid-column:1/-1}.split-media{grid-template-columns:1fr}
}
@media(max-width:767px){
 body{font-size:15px}.section{padding:70px 0}.page-hero .container{padding-top:38px;padding-bottom:40px}.page-hero p{font-size:15px}.filter-bar{align-items:flex-start;flex-direction:column;padding:20px}
 .scene-grid{margin-top:31px}.scene-image{height:190px}.scene-body{padding:21px}.process-list{padding:17px 24px}.process-item{grid-template-columns:42px 1fr;gap:12px}.media-frame,.media-frame img{min-height:315px}
 .advice-grid{grid-template-columns:1fr;margin-top:30px}.cta-box{padding:34px 25px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-bottom:6px}
 .fixed-bar{bottom:0;width:100%;border-radius:0;border-left:0;border-right:0;padding:8px 10px}.fixed-bar p{display:none}.fixed-actions{width:100%}.fixed-actions a{flex:1}.fixed-actions .btn-brand,.fixed-actions .btn-light-outline{min-height:46px}
}
@media(max-width:520px){
 .brand{font-size:16px}.brand-mark{width:32px;height:32px}.page-hero h1{font-size:36px}.section-title{font-size:29px}.filter-tags{gap:7px}.filter-tag{font-size:12px;padding:6px 10px}
 .scene-body h2{font-size:20px}.process-side h2{font-size:26px}.faq-button{padding:15px 16px;font-size:16px}.faq-answer{padding:0 16px 19px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child,.footer-grid>div:last-child{grid-column:auto}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}

/* roulang page: category3 */
:root{
 --ink:#1d2926;--muted:#64706c;--paper:#f5f4f0;--white:#fffefa;--line:#d8ddd7;
 --teal:#0b5e59;--teal-dark:#074743;--mint:#dcebe5;--fog:#e9ece5;--warm:#ebe8e1;
 --charcoal:#18201e;--charcoal-2:#25302d;--accent:#bfdbc9;--radius:18px;
 --radius-sm:12px;--shadow:0 14px 34px rgba(24,32,30,.07);
 --shadow-hover:0 18px 38px rgba(15,44,40,.13);--container:1240px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:var(--paper);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{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input,select,textarea{font:inherit}button{border:0}
.container{max-width:var(--container)}
.section{padding:104px 0;position:relative}.section-soft{background:#eff0eb}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.1em}
.eyebrow:before{content:"";width:26px;height:1px;background:currentColor}
.section-title{max-width:760px;margin:12px 0 16px;font-size:clamp(30px,3.2vw,43px);line-height:1.25;letter-spacing:-.04em;font-weight:800}
.section-intro{max-width:720px;margin:0;color:var(--muted)}
.btn-brand,.btn-outline-brand,.btn-light-outline{min-height:48px;padding:11px 22px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-size:15px;font-weight:800;transition:transform .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease}
.btn-brand{background:var(--teal);color:#fff;border:1px solid var(--teal);box-shadow:0 8px 18px rgba(11,94,89,.18)}
.btn-brand:hover{background:var(--teal-dark);border-color:var(--teal-dark);color:#fff;transform:translateY(-2px)}
.btn-outline-brand{border:1px solid rgba(255,255,255,.62);color:#fff;background:rgba(255,255,255,.08)}
.btn-outline-brand:hover{background:#fff;color:var(--teal);transform:translateY(-2px)}
.btn-light-outline{border:1px solid var(--line);color:var(--ink);background:transparent}
.btn-light-outline:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
.btn-brand:focus-visible,.btn-outline-brand:focus-visible,.btn-light-outline:focus-visible,.nav-link:focus-visible,.menu-toggle:focus-visible,.form-control:focus,.form-select:focus,.faq-button:focus-visible{outline:3px solid rgba(11,94,89,.25);outline-offset:3px;box-shadow:none}
.topbar{height:34px;background:var(--charcoal);color:#ced6d1;font-size:12px}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}.topbar-info{display:flex;gap:20px;align-items:center}.topbar a{color:#e5ebe7}
.site-header{position:sticky;top:0;z-index:1040;background:rgba(255,254,250,.97);border-bottom:1px solid transparent;transition:.25s}
.site-header.scrolled{box-shadow:0 6px 18px rgba(24,32,30,.06);border-color:var(--line)}
.main-nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:850;font-size:18px;letter-spacing:-.04em}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--teal);display:grid;place-items:center;position:relative}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.85)}
.brand-mark:before{width:17px;height:10px;border-radius:3px}.brand-mark:after{width:5px;height:5px;border-radius:50%;background:#fff;border:0;right:7px;top:8px}
.nav-list{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}.nav-link{display:block;padding:11px 13px;border-radius:8px;color:#495550;font-size:14px;font-weight:700;transition:.2s}
.nav-link:hover,.nav-link.active{color:var(--teal);background:#e8f0eb}.nav-cta{white-space:nowrap}.menu-toggle{display:none;width:46px;height:46px;border-radius:10px;background:#e9eee9;color:var(--ink);font-size:22px}
.page-head{min-height:420px;color:#fff;background:linear-gradient(90deg,rgba(18,34,31,.91),rgba(18,34,31,.58)),url('/assets/images/backpic/back-5.webp') center/cover;display:flex;align-items:center}
.breadcrumb{display:flex;gap:9px;align-items:center;color:#c9d9d1;font-size:13px;margin-bottom:24px}.breadcrumb a:hover{color:#fff}
.page-head h1{font-size:clamp(38px,5vw,60px);line-height:1.15;letter-spacing:-.055em;margin:0 0 19px;font-weight:850}.page-head p{max-width:690px;color:#dce8e2;font-size:17px;margin:0}
.head-note{margin-top:28px;display:flex;gap:10px;flex-wrap:wrap}.tag{display:inline-flex;padding:6px 11px;border:1px solid #cbdcd3;border-radius:7px;color:var(--teal);font-size:13px;font-weight:700;background:#f5faf6}.page-head .tag{border-color:rgba(220,235,229,.4);background:rgba(255,255,255,.08);color:#e4f0e9}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}.filter-row button{min-height:44px;padding:8px 17px;border:1px solid var(--line);border-radius:22px;background:var(--white);color:var(--muted);cursor:pointer;transition:.2s}.filter-row button:hover,.filter-row button.active{background:var(--teal);border-color:var(--teal);color:#fff}
.adapter-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:38px}.adapter-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px;display:grid;grid-template-columns:58px 1fr;gap:18px;transition:.24s}
.adapter-card:hover{border-color:var(--teal);transform:translateY(-5px);box-shadow:var(--shadow-hover)}.card-index{font-size:25px;color:var(--teal);font-weight:850;line-height:1}.adapter-card h3{font-size:21px;margin:0 0 8px}.adapter-card p{margin:0;color:var(--muted);font-size:15px}.micro-line{height:4px;background:var(--mint);margin-top:18px;position:relative}.micro-line:after{content:"";position:absolute;left:0;top:0;height:100%;width:64%;background:var(--teal)}
.process-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:70px;align-items:center}.process-list{margin-top:28px;border-top:1px solid var(--line)}.process-item{display:grid;grid-template-columns:70px 1fr;gap:18px;padding:21px 0;border-bottom:1px solid var(--line)}.process-item b{color:var(--teal);font-size:14px}.process-item h3{font-size:19px;margin:0 0 3px}.process-item p{margin:0;color:var(--muted);font-size:14px}
.architecture{background:var(--charcoal);padding:28px;border-radius:22px;color:#fff;box-shadow:var(--shadow)}.arch-label{font-size:13px;color:#b9cec4;letter-spacing:.1em;margin-bottom:18px}.arch-layer{padding:17px 20px;margin:10px 0;border:1px solid rgba(207,232,218,.25);background:rgba(220,235,229,.07);border-radius:10px;display:flex;justify-content:space-between;align-items:center}.arch-layer strong{color:#e5f2eb}.arch-layer span{font-size:13px;color:#b8cbc2}
.photo-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.photo-layout img{width:100%;height:365px;object-fit:cover;border-radius:20px}.point-list{list-style:none;padding:0;margin:26px 0 0}.point-list li{padding:15px 0 15px 30px;border-bottom:1px solid var(--line);position:relative}.point-list li:before{content:"＋";position:absolute;left:0;color:var(--teal);font-weight:800}
.choice-box{background:var(--mint);border-radius:20px;padding:34px}.choice-box h3{font-size:23px;margin:0 0 15px}.choice-box ul{padding-left:20px;margin:0;color:var(--muted)}.choice-box li{margin:8px 0}
.faq-list{margin-top:34px;border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-button{width:100%;min-height:68px;padding:18px 4px;background:transparent;text-align:left;font-weight:800;color:var(--ink);display:flex;justify-content:space-between;align-items:center;cursor:pointer}.faq-button span{font-size:24px;color:var(--teal);transition:.25s}.faq-button[aria-expanded=true] span{transform:rotate(45deg)}.faq-answer{max-width:850px;color:var(--muted);padding:0 42px 20px 4px}
.cta-section{background:var(--warm)}.cta-layout{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}.contact-note{color:var(--muted);max-width:470px}.form-card{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:var(--shadow)}.form-label{font-size:14px;font-weight:800;margin-bottom:7px}.form-control,.form-select{border:1px solid var(--line);border-radius:9px;min-height:48px;background:#fff}.form-control:focus,.form-select:focus{border-color:var(--teal)}
.site-footer{background:var(--charcoal);color:#d7e1db;padding:68px 0 24px}.footer-grid{display:grid;grid-template-columns:1.6fr .8fr .8fr 1.2fr;gap:38px}.footer-brand{font-size:20px;font-weight:850;color:#fff}.footer-brand small{display:block;color:#aebeb6;font-size:12px;font-weight:500;margin-top:5px}.footer-copy{color:#aebeb6;font-size:14px;max-width:310px;margin-top:18px}.footer-heading{color:#fff;font-weight:800;margin-bottom:14px}.footer-links{list-style:none;padding:0;margin:0;color:#aebeb6;font-size:13px}.footer-links li{margin:7px 0}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:48px;padding-top:18px;display:flex;justify-content:space-between;color:#91a19a;font-size:12px}
.fixed-bar{position:fixed;z-index:1030;bottom:18px;left:50%;transform:translateX(-50%);width:min(calc(100% - 40px),760px);background:rgba(255,254,250,.96);border:1px solid var(--line);box-shadow:0 12px 32px rgba(24,32,30,.16);border-radius:14px;padding:9px 12px 9px 20px;display:flex;align-items:center;justify-content:space-between;gap:18px;font-size:14px;font-weight:800}.fixed-actions{display:flex;gap:8px}.fixed-bar .btn-brand,.fixed-bar .btn-light-outline{min-height:40px;padding:7px 15px;font-size:13px}
@media(max-width:992px){.main-nav{height:68px}.nav-list{display:none}.menu-toggle{display:block}.main-nav .nav-cta{margin-left:auto}.page-head{min-height:390px}.process-layout,.cta-layout{grid-template-columns:1fr;gap:35px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.topbar{height:auto;padding:5px 0}.topbar-info{gap:10px}.topbar-info span:last-child{display:none}.page-head{min-height:390px}.section{padding:76px 0}.adapter-grid,.photo-layout{grid-template-columns:1fr}.adapter-card{padding:23px}.photo-layout img{height:280px}.fixed-bar{bottom:0;width:100%;border-radius:12px 12px 0 0;padding:9px 12px}.fixed-bar>span{font-size:12px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}
@media(max-width:520px){.topbar .container{justify-content:center}.main-nav{gap:10px}.brand{font-size:16px}.brand-mark{width:31px;height:31px}.nav-cta{display:none}.page-head h1{font-size:39px}.page-head p{font-size:15px}.section-title{font-size:31px}.footer-grid{grid-template-columns:1fr;gap:25px}.fixed-actions{width:100%}.fixed-actions a{flex:1;padding-left:7px;padding-right:7px}.fixed-bar{gap:8px}.fixed-bar>span{display:none}.form-card{padding:21px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

@media(max-width:992px){
 .nav-list.mobile-open{display:flex;position:absolute;left:0;right:0;top:102px;background:var(--white);padding:12px 20px 20px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
 .nav-list.mobile-open .nav-link{min-height:44px;display:flex;align-items:center}
}

/* roulang page: category1 */
:root{--ink:#1d2926;--muted:#64706c;--paper:#f5f4f0;--white:#fffefa;--line:#d8ddd7;--teal:#0b5e59;--teal-dark:#074743;--mint:#dcebe5;--fog:#e9ece5;--warm:#ebe8e1;--charcoal:#18201e;--charcoal-2:#25302d;--accent:#bfdbc9;--radius:18px;--radius-sm:12px;--shadow:0 14px 34px rgba(24,32,30,.07);--shadow-hover:0 18px 38px rgba(15,44,40,.13);--container:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--paper);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{color:inherit;text-decoration:none}img{display:block;max-width:100%;object-fit:cover}button,input,select,textarea{font:inherit}button{border:0}.container{max-width:var(--container)}.section{padding:104px 0}.section-soft{background:#eff0eb}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.12em}.eyebrow:before{content:"";width:26px;height:1px;background:currentColor}.section-title{max-width:760px;margin:12px 0 16px;font-size:clamp(30px,3.2vw,43px);line-height:1.25;letter-spacing:-.04em;font-weight:800}.section-intro{max-width:700px;margin:0;color:var(--muted)}.btn-brand,.btn-outline-brand,.btn-light-outline{min-height:48px;padding:11px 22px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-size:15px;font-weight:800;transition:.22s ease}.btn-brand{background:var(--teal);color:#fff;border:1px solid var(--teal);box-shadow:0 8px 18px rgba(11,94,89,.18)}.btn-brand:hover{background:var(--teal-dark);color:#fff;transform:translateY(-2px)}.btn-outline-brand{border:1px solid rgba(255,255,255,.6);color:#fff;background:rgba(255,255,255,.07)}.btn-outline-brand:hover{background:#fff;color:var(--teal);transform:translateY(-2px)}.btn-light-outline{border:1px solid var(--line);color:var(--ink);background:transparent}.btn-light-outline:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}:focus-visible,.form-control:focus,.form-select:focus{outline:3px solid rgba(11,94,89,.25);outline-offset:3px;box-shadow:none}
.topbar{height:34px;background:var(--charcoal);color:#ced6d1;font-size:12px}.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}.topbar-info{display:flex;gap:20px}.topbar a{color:#e5ebe7}.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,254,250,.97);border-bottom:1px solid transparent;transition:.25s}.site-header.scrolled{box-shadow:0 6px 18px rgba(24,32,30,.06);border-color:var(--line)}.main-nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:850;font-size:18px;letter-spacing:-.04em}.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--teal);display:grid;place-items:center;position:relative}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.85)}.brand-mark:before{width:17px;height:10px;border-radius:3px}.brand-mark:after{width:5px;height:5px;border-radius:50%;background:#fff;border:0;right:7px;top:8px}.nav-list{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}.nav-link{display:block;padding:11px 13px;border-radius:8px;color:#495550;font-size:14px;font-weight:700;transition:.2s}.nav-link:hover,.nav-link.active{color:var(--teal);background:#e8f0eb}.nav-cta{white-space:nowrap}.menu-toggle{display:none;width:46px;height:46px;border-radius:10px;background:#e9eee9;color:var(--ink);font-size:22px}
.page-head{padding:76px 0 68px;background:#e8eee9;border-bottom:1px solid var(--line)}.crumb{font-size:13px;color:var(--muted);margin-bottom:27px}.crumb a{color:var(--teal)}.head-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:end}.page-head h1{font-size:clamp(38px,5vw,62px);line-height:1.15;letter-spacing:-.055em;margin:14px 0 20px;font-weight:850}.head-image{height:260px;border-radius:20px;overflow:hidden;box-shadow:var(--shadow);position:relative}.head-image img{width:100%;height:100%}.head-image:after{content:"座舱软件能力图谱";position:absolute;left:20px;bottom:18px;color:#fff;font-size:13px;background:rgba(24,32,30,.72);padding:6px 10px;border-radius:6px}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}.filter{border:1px solid var(--line);background:var(--white);color:var(--muted);padding:9px 15px;border-radius:8px;font-size:14px;transition:.2s}.filter:hover,.filter.active{background:var(--teal);border-color:var(--teal);color:#fff}.cap-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:44px}.cap-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:27px;min-height:220px;transition:.25s;position:relative;overflow:hidden}.cap-card:hover{transform:translateY(-5px);border-color:var(--teal);box-shadow:var(--shadow-hover)}.cap-no{color:var(--teal);font:700 13px/1 Inter,Arial;margin-bottom:22px;letter-spacing:.12em}.cap-card h3{font-size:21px;margin:0 0 10px;font-weight:800}.cap-card p{color:var(--muted);font-size:15px;margin:0}.cap-mark{position:absolute;right:25px;top:25px;width:46px;height:46px;border:1px solid #b9d1c7;border-radius:12px;color:var(--teal);display:grid;place-items:center;font-size:20px}.more-link{display:inline-flex;margin-top:28px;color:var(--teal);font-weight:800;border-bottom:1px solid var(--teal);padding-bottom:3px}
.split{display:grid;grid-template-columns:.85fr 1.15fr;gap:72px;align-items:center}.split-image{border-radius:20px;overflow:hidden;background:var(--fog);min-height:390px}.split-image img{width:100%;height:390px}.point-list{border-top:1px solid var(--line);margin-top:30px}.point{display:grid;grid-template-columns:42px 1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}.point b{color:var(--teal);font-size:14px}.point h3{margin:0 0 5px;font-size:18px}.point p{margin:0;color:var(--muted);font-size:15px}.dark-panel{background:var(--charcoal);color:#f4f8f3}.dark-panel .eyebrow{color:var(--accent)}.dark-panel .section-intro{color:#b9c8c0}.matrix{margin-top:34px;border-top:1px solid #53615b}.matrix-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px;padding:17px 0;border-bottom:1px solid #53615b;font-size:14px;color:#c4d0c9}.matrix-row strong{color:#fff}.matrix-row:first-child{color:var(--accent);font-weight:800}.stat-strip{background:var(--teal);color:#fff;padding:35px 0}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.stat{border-left:1px solid rgba(255,255,255,.35);padding-left:22px}.stat strong{display:block;font-size:30px;line-height:1.2;color:#fff}.stat span{display:block;color:#d5e7dd;font-size:13px;margin-top:5px}.faq-list{margin-top:38px;border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-button{width:100%;min-height:68px;background:transparent;text-align:left;display:flex;align-items:center;justify-content:space-between;color:var(--ink);font-weight:800;font-size:17px;padding:15px 0}.faq-button span:last-child{font-size:25px;color:var(--teal);font-weight:400}.faq-answer{color:var(--muted);font-size:15px;padding:0 45px 22px 0}.support{background:var(--mint);border:1px solid #c8ddd3;border-radius:20px;padding:32px 38px;display:flex;align-items:center;justify-content:space-between;gap:30px}.support h2{font-size:25px;margin:0 0 8px}.support p{margin:0;color:var(--muted)}.cta-section{padding:96px 0}.form-card{background:var(--white);border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow)}.form-label{font-weight:800;font-size:14px;margin-bottom:7px}.form-control,.form-select{border:1px solid var(--line);border-radius:9px;min-height:48px;background:#fff;padding:10px 13px}.form-control:focus,.form-select:focus{border-color:var(--teal)}.form-note{color:var(--muted);font-size:13px}.site-footer{background:var(--charcoal);color:#dbe5df;padding:65px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr 1.2fr;gap:42px}.footer-brand{font-size:19px;font-weight:850;color:#fff}.footer-brand small{display:block;color:#9fb1a8;font-size:12px;font-weight:400;margin-top:5px}.footer-copy{color:#9fb1a8;font-size:14px;max-width:330px;margin-top:17px}.footer-heading{font-weight:800;color:#fff;margin-bottom:14px}.footer-links{padding:0;margin:0;list-style:none;color:#aebdb5;font-size:14px}.footer-links li{margin:7px 0}.footer-links a:hover{color:#fff}.footer-bottom{border-top:1px solid #3b4944;margin-top:45px;padding-top:19px;color:#8e9d96;font-size:12px;display:flex;justify-content:space-between;gap:20px}.fixed-bar{position:fixed;z-index:900;bottom:16px;left:50%;transform:translateX(-50%);width:min(calc(100% - 32px),760px);background:rgba(255,254,250,.94);border:1px solid var(--line);box-shadow:0 10px 30px rgba(24,32,30,.14);border-radius:12px;padding:9px 12px 9px 20px;display:flex;align-items:center;justify-content:space-between;gap:15px;font-size:14px}.fixed-actions{display:flex;gap:8px}.fixed-actions a{min-height:40px;padding:7px 14px;border-radius:8px;font-weight:800;font-size:13px}.fixed-actions a:first-child{background:var(--teal);color:#fff}.fixed-actions a:last-child{border:1px solid var(--teal);color:var(--teal)}
@media(max-width:992px){.nav-list{display:none}.menu-toggle{display:block}.nav-cta{display:none}.head-grid,.split{grid-template-columns:1fr;gap:35px}.head-image{height:230px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.topbar{display:none}.main-nav{height:68px}.section{padding:72px 0}.page-head{padding:50px 0}.cap-grid{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr);gap:25px}.support{display:block;padding:26px}.support .btn-brand{margin-top:20px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:6px}.fixed-bar{bottom:0;width:100%;border-radius:0;border-left:0;border-right:0;margin:0;padding:9px 12px;min-height:62px}.fixed-bar>span{font-size:13px}.fixed-actions a{padding:7px 10px}}
@media(max-width:520px){.brand{font-size:16px}.brand-mark{width:31px;height:31px}.section-title{font-size:31px}.split-image,.split-image img{min-height:260px;height:260px}.stats{grid-template-columns:1fr 1fr}.stat strong{font-size:24px}.footer-grid{grid-template-columns:1fr;gap:25px}.form-card{padding:21px}.fixed-bar>span{max-width:120px;line-height:1.4}.fixed-actions{gap:5px}.fixed-actions a{font-size:12px}}

/* roulang page: category4 */
:root{--ink:#1d2926;--muted:#64706c;--paper:#f5f4f0;--white:#fffefa;--line:#d8ddd7;--teal:#0b5e59;--teal-dark:#074743;--mint:#dcebe5;--fog:#e9ece5;--warm:#ebe8e1;--charcoal:#18201e;--charcoal-2:#25302d;--accent:#bfdbc9;--radius:18px;--radius-sm:12px;--shadow:0 14px 34px rgba(24,32,30,.07);--shadow-hover:0 18px 38px rgba(15,44,40,.13);--container:1240px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);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{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,select,textarea{font:inherit}button{border:0}.container{max-width:var(--container)}.section{padding:104px 0;position:relative}.section-soft{background:#eff0eb}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.12em}.eyebrow:before{content:"";width:26px;height:1px;background:currentColor}.section-title{max-width:760px;margin:12px 0 16px;font-size:clamp(30px,3.2vw,43px);line-height:1.25;letter-spacing:-.04em;font-weight:800}.section-intro{max-width:720px;margin:0;color:var(--muted)}.btn-brand,.btn-light-outline,.btn-outline-brand{min-height:48px;padding:11px 22px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:800;transition:transform .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease}.btn-brand{background:var(--teal);color:#fff;border:1px solid var(--teal);box-shadow:0 8px 18px rgba(11,94,89,.18)}.btn-brand:hover{background:var(--teal-dark);border-color:var(--teal-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(11,94,89,.24)}.btn-light-outline{border:1px solid var(--line);background:transparent;color:var(--ink)}.btn-light-outline:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}.btn-outline-brand{border:1px solid rgba(255,255,255,.58);color:#fff;background:transparent}.btn-outline-brand:hover{background:#fff;color:var(--teal);transform:translateY(-2px)}.btn-brand:focus-visible,.btn-light-outline:focus-visible,.btn-outline-brand:focus-visible,.nav-link:focus-visible,.menu-toggle:focus-visible,.filter-btn:focus-visible,.faq-button:focus-visible,.form-control:focus,.form-select:focus{outline:3px solid rgba(11,94,89,.28);outline-offset:3px;box-shadow:none}.topbar{height:34px;background:var(--charcoal);color:#ced6d1;font-size:12px}.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}.topbar-info{display:flex;align-items:center;gap:20px}.topbar a{color:#e5ebe7}.site-header{position:sticky;top:0;z-index:1040;background:rgba(255,254,250,.97);border-bottom:1px solid transparent;transition:.25s}.site-header.scrolled{box-shadow:0 6px 18px rgba(24,32,30,.06);border-color:var(--line)}.main-nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:18px;font-weight:850;letter-spacing:-.04em}.brand-mark{width:34px;height:34px;position:relative;display:grid;place-items:center;border-radius:10px;background:var(--teal)}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.86)}.brand-mark:before{width:17px;height:10px;border-radius:3px}.brand-mark:after{width:5px;height:5px;right:7px;top:8px;border:0;border-radius:50%;background:#fff}.nav-list{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}.nav-link{display:block;padding:11px 13px;border-radius:8px;color:#495550;font-size:14px;font-weight:700;transition:.2s}.nav-link:hover,.nav-link.active{background:#e8f0eb;color:var(--teal)}.menu-toggle{display:none;width:46px;height:46px;border-radius:10px;background:#e9eee9;color:var(--ink);font-size:22px}.page-hero{padding:67px 0 74px;position:relative;overflow:hidden;background:var(--charcoal);color:#fff}.page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(24,32,30,.94),rgba(24,32,30,.73) 52%,rgba(24,32,30,.37)),url("/assets/images/backpic/back-4.webp") center/cover}.page-hero .container{position:relative}.breadcrumb{margin-bottom:21px;font-size:13px;color:#c6d2cc}.breadcrumb a:hover{color:#fff}.page-hero h1{max-width:760px;margin:0;font-size:clamp(37px,5vw,58px);line-height:1.16;letter-spacing:-.055em;font-weight:850}.page-hero p{max-width:700px;margin:18px 0 0;color:#d8e3dd;font-size:17px}.hero-stamp{display:inline-flex;margin-top:23px;padding:7px 11px;border:1px solid rgba(220,235,229,.45);border-radius:7px;color:#dcebe5;font-size:13px;font-weight:800;letter-spacing:.08em}.filter-panel{margin-top:-26px;position:relative;z-index:2;padding:23px 26px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.filter-panel strong{font-size:14px}.filter-list{display:flex;gap:9px;flex-wrap:wrap;margin-top:13px}.filter-btn{min-height:40px;padding:7px 13px;border:1px solid var(--line);border-radius:8px;background:#fff;color:#50605a;font-size:14px;font-weight:700;transition:.2s}.filter-btn:hover,.filter-btn.active{border-color:var(--teal);background:#e7f0eb;color:var(--teal)}.test-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:42px}.test-card{padding:26px;min-height:228px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);transition:.22s}.test-card:hover{transform:translateY(-5px);border-color:var(--teal);box-shadow:var(--shadow-hover)}.card-no{display:block;color:var(--teal);font-size:12px;font-weight:850;letter-spacing:.13em}.test-card h3{margin:22px 0 9px;font-size:21px;font-weight:800}.test-card p{margin:0;color:var(--muted);font-size:15px}.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:20px;padding-top:13px;border-top:1px solid #e6e9e3;color:var(--teal);font-size:13px;font-weight:800}.signal{width:76px;height:9px;border-radius:9px;background:repeating-linear-gradient(90deg,var(--teal) 0 9px,transparent 9px 13px)}.process-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px;align-items:center}.process-image{height:480px;overflow:hidden;border-radius:var(--radius);background:var(--fog)}.process-image img{height:100%;width:100%;object-fit:cover}.process-list{margin:28px 0 0;padding:0;list-style:none}.process-list li{display:grid;grid-template-columns:42px 1fr;gap:15px;padding:0 0 23px;margin-bottom:20px;border-bottom:1px solid var(--line)}.process-list li:last-child{margin-bottom:0}.process-no{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:var(--mint);color:var(--teal);font-size:13px;font-weight:850}.process-list strong{display:block;font-size:17px}.process-list p{margin:3px 0 0;color:var(--muted);font-size:14px}.coverage{background:var(--charcoal);color:#fff;overflow:hidden}.coverage:before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(11,94,89,.14),transparent 46%),linear-gradient(90deg,transparent 0 95%,rgba(220,235,229,.08) 95%);background-size:auto,34px 34px}.coverage .container{position:relative}.coverage .section-title{color:#fff}.coverage .section-intro{color:#c6d1cb}.coverage-layout{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:42px}.coverage-map{padding:30px;background:#222d2a;border:1px solid rgba(220,235,229,.16);border-radius:var(--radius)}.coverage-map h3{font-size:20px}.map-row{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:17px 0;border-bottom:1px solid rgba(220,235,229,.13)}.map-row:last-child{border-bottom:0}.map-row span{color:#d8e2dc;font-size:14px}.map-dot{width:10px;height:10px;border-radius:50%;background:#91bdac;box-shadow:0 0 0 5px rgba(145,189,172,.13)}.coverage-note{padding:34px;background:#dcebe5;color:var(--ink);border-radius:var(--radius)}.coverage-note h3{font-size:24px;line-height:1.35;font-weight:800}.coverage-note p{margin:14px 0 24px;color:#43534d}.scenario-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:stretch}.scenario-photo{position:relative;min-height:420px;overflow:hidden;border-radius:var(--radius)}.scenario-photo img{width:100%;height:100%;object-fit:cover}.scenario-photo:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(18,30,27,.72),transparent 55%)}.photo-label{position:absolute;z-index:1;left:28px;bottom:25px;color:#fff}.photo-label strong{display:block;font-size:24px}.scenario-points{padding:27px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}.scenario-points h3{font-size:23px;font-weight:800}.scenario-points ul{padding:0;margin:24px 0 0;list-style:none}.scenario-points li{padding:15px 0;border-top:1px solid var(--line);font-size:15px}.scenario-points li:before{content:"✓";margin-right:10px;color:var(--teal);font-weight:900}.advice-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:40px}.advice-card{padding:28px;background:var(--warm);border-radius:var(--radius)}.advice-card h3{font-size:20px;font-weight:800}.advice-card p{margin:10px 0 0;color:#59635f;font-size:15px}.faq-list{margin-top:37px;border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-button{width:100%;min-height:72px;padding:17px 2px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:transparent;color:var(--ink);text-align:left;font-size:18px;font-weight:800}.faq-icon{position:relative;width:25px;height:25px;flex:0 0 25px;color:var(--teal)}.faq-icon:before,.faq-icon:after{content:"";position:absolute;left:3px;top:12px;width:19px;height:2px;background:currentColor;transition:.22s}.faq-icon:after{transform:rotate(90deg)}.faq-button[aria-expanded="true"] .faq-icon:after{transform:rotate(0)}.faq-answer{display:none;max-width:880px;padding:0 42px 21px 2px;color:var(--muted);font-size:15px}.faq-answer.show{display:block}.support-box{padding:48px;background:var(--teal);border-radius:var(--radius);color:#fff}.support-box .row{align-items:center}.support-box h2{margin:0;font-size:clamp(28px,3.2vw,42px);line-height:1.27;font-weight:850;letter-spacing:-.04em}.support-box p{margin:12px 0 0;color:#d9ebe3}.support-actions{display:flex;justify-content:flex-end;gap:12px;flex-wrap:wrap}.site-footer{padding:68px 0 98px;background:var(--charcoal);color:#d5dfd9}.footer-grid{display:grid;grid-template-columns:1.55fr .8fr .8fr 1.2fr;gap:34px}.footer-brand{color:#fff;font-size:19px;font-weight:850}.footer-brand small{display:block;margin-top:5px;color:#9dada6;font-size:13px;font-weight:500}.footer-copy{max-width:340px;margin:17px 0 0;color:#aebbb5;font-size:14px}.footer-heading{margin:3px 0 14px;color:#fff;font-size:14px;font-weight:850}.footer-links{margin:0;padding:0;list-style:none}.footer-links li{margin:7px 0;color:#aebbb5;font-size:14px}.footer-links a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:21px;border-top:1px solid rgba(220,235,229,.15);color:#92a29a;font-size:12px}.fixed-cta{position:fixed;z-index:1030;left:50%;bottom:16px;transform:translateX(-50%);width:min(860px,calc(100% - 34px));padding:10px 12px 10px 19px;display:flex;align-items:center;justify-content:space-between;gap:14px;background:rgba(255,254,250,.94);border:1px solid rgba(216,221,215,.95);border-radius:13px;box-shadow:0 12px 32px rgba(24,32,30,.15);backdrop-filter:blur(8px)}.fixed-cta span{font-size:14px;font-weight:800}.fixed-actions{display:flex;gap:8px}.fixed-cta .btn-brand,.fixed-cta .btn-light-outline{min-height:42px;padding:8px 16px;font-size:14px}
@media(max-width:991px){.nav-list,.nav-cta{display:none}.menu-toggle{display:block}.main-nav{height:70px}.process-wrap,.coverage-layout,.scenario-grid{grid-template-columns:1fr;gap:30px}.process-image{height:360px}.footer-grid{grid-template-columns:1fr 1fr}.support-actions{justify-content:flex-start;margin-top:25px}.topbar-info span:last-child{display:none}}@media(max-width:767px){.section{padding:72px 0}.topbar{height:31px}.topbar .container{font-size:11px}.topbar-info{gap:10px}.page-hero{padding:52px 0 58px}.page-hero p{font-size:15px}.filter-panel{padding:19px;margin-top:-18px}.test-grid,.advice-grid{grid-template-columns:1fr}.test-card{min-height:auto}.scenario-photo{min-height:315px}.coverage-map,.coverage-note,.support-box{padding:25px}.footer-grid{grid-template-columns:1fr;gap:26px}.footer-bottom{display:block}.footer-bottom span{display:block;margin:5px 0}.site-footer{padding-bottom:104px}.fixed-cta{bottom:8px;padding:8px;width:calc(100% - 16px)}.fixed-cta span{display:none}.fixed-actions{width:100%}.fixed-actions a{flex:1}.section-title{font-size:31px}.faq-button{font-size:16px}.faq-answer{padding-right:12px}}@media(max-width:375px){.brand{font-size:16px}.brand-mark{width:31px;height:31px}.page-hero h1{font-size:35px}.filter-btn{font-size:13px;padding:7px 10px}.fixed-cta .btn-brand,.fixed-cta .btn-light-outline{padding:8px 9px;font-size:13px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category5 */
:root{
 --ink:#1d2926;--muted:#64706c;--paper:#f5f4f0;--white:#fffefa;--line:#d8ddd7;
 --teal:#0b5e59;--teal-dark:#074743;--mint:#dcebe5;--fog:#e9ece5;--warm:#ebe8e1;
 --charcoal:#18201e;--charcoal-2:#25302d;--accent:#bfdbc9;--radius:18px;--radius-sm:12px;
 --shadow:0 14px 34px rgba(24,32,30,.07);--shadow-hover:0 18px 38px rgba(15,44,40,.13);
 --container:1240px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:108px}
body{margin:0;background:var(--paper);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{color:inherit;text-decoration:none}img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}button{border:0}
.container{max-width:var(--container)}
.section{padding:105px 0;position:relative}.section-soft{background:#eff0eb}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--teal);font-size:13px;font-weight:800;letter-spacing:.1em}
.eyebrow:before{content:"";width:26px;height:1px;background:currentColor}
.section-title{max-width:760px;margin:12px 0 16px;font-size:clamp(30px,3.3vw,43px);line-height:1.25;letter-spacing:-.045em;font-weight:850}
.section-intro{max-width:720px;margin:0;color:var(--muted)}
.btn-brand,.btn-outline-brand,.btn-light-outline{min-height:48px;padding:11px 22px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-size:15px;font-weight:800;transition:transform .22s,background .22s,border-color .22s,box-shadow .22s}
.btn-brand{background:var(--teal);color:#fff;border:1px solid var(--teal);box-shadow:0 8px 18px rgba(11,94,89,.18)}
.btn-brand:hover{background:var(--teal-dark);border-color:var(--teal-dark);color:#fff;transform:translateY(-2px)}
.btn-outline-brand{border:1px solid rgba(255,255,255,.6);color:#fff;background:rgba(255,255,255,.07)}
.btn-outline-brand:hover{background:#fff;color:var(--teal);transform:translateY(-2px)}
.btn-light-outline{border:1px solid var(--line);color:var(--ink);background:transparent}
.btn-light-outline:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px)}
.btn-brand:focus-visible,.btn-outline-brand:focus-visible,.btn-light-outline:focus-visible,.nav-link:focus-visible,.faq-button:focus-visible,.form-control:focus,.form-select:focus,.menu-toggle:focus-visible{outline:3px solid rgba(11,94,89,.26);outline-offset:3px;box-shadow:none}
.topbar{height:34px;background:var(--charcoal);color:#ced6d1;font-size:12px}
.topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}.topbar-info{display:flex;gap:20px;align-items:center}.topbar a{color:#e5ebe7}
.site-header{position:sticky;top:0;z-index:1040;background:rgba(255,254,250,.97);border-bottom:1px solid transparent;transition:.25s}
.site-header.scrolled{box-shadow:0 6px 18px rgba(24,32,30,.06);border-color:var(--line)}
.main-nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:850;font-size:18px;letter-spacing:-.04em}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--teal);display:grid;place-items:center;position:relative}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.85)}
.brand-mark:before{width:17px;height:10px;border-radius:3px}.brand-mark:after{width:5px;height:5px;border-radius:50%;background:#fff;border:0;right:7px;top:8px}
.nav-list{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}
.nav-link{display:block;padding:11px 13px;border-radius:8px;color:#495550;font-size:14px;font-weight:700;transition:.2s}
.nav-link:hover,.nav-link.active{color:var(--teal);background:#e8f0eb}
.nav-cta{white-space:nowrap}.menu-toggle{display:none;width:46px;height:46px;border-radius:10px;background:#e9eee9;color:var(--ink);font-size:22px}
.page-head{min-height:370px;padding:75px 0 70px;background:var(--charcoal);color:#fff;position:relative;overflow:hidden}
.page-head:before{content:"";position:absolute;inset:0;background:linear-gradient(112deg,rgba(24,32,30,.94),rgba(24,32,30,.72)),url("/assets/images/backpic/back-6.webp") center/cover}
.page-head:after{content:"";position:absolute;width:42%;height:170%;right:-12%;top:-30%;background:var(--teal);opacity:.32;transform:skewX(-18deg)}
.page-head .container{position:relative;z-index:1}.crumbs{color:#b9cbc3;font-size:13px;margin-bottom:23px}.crumbs a:hover{color:#fff}
.page-head h1{font-size:clamp(38px,5vw,60px);line-height:1.16;letter-spacing:-.06em;max-width:760px;margin:0 0 20px;font-weight:850}
.page-head p{max-width:700px;color:#dbe4df;margin:0;font-size:17px}
.resource-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.resource-tags span,.mini-tag{border:1px solid #cbdad1;background:#edf4ef;color:var(--teal);padding:6px 12px;border-radius:7px;font-size:13px;font-weight:700}
.filter-bar{display:flex;justify-content:space-between;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:25px}.filter-list{display:flex;gap:8px;flex-wrap:wrap}.filter-list button{padding:9px 15px;border-radius:8px;background:transparent;border:1px solid var(--line);color:var(--muted);font-size:14px;cursor:pointer;transition:.2s}.filter-list button:hover,.filter-list button.active{background:var(--teal);color:#fff;border-color:var(--teal)}
.resource-grid{margin-top:38px}.resource-card{height:100%;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s;display:flex;flex-direction:column}.resource-card:hover{transform:translateY(-6px);border-color:var(--teal);box-shadow:var(--shadow-hover)}.resource-card img{width:100%;height:174px;object-fit:cover;background:var(--fog)}.resource-body{padding:25px 25px 27px;display:flex;flex-direction:column;flex:1}.resource-body h3{font-size:21px;line-height:1.38;margin:13px 0 10px;font-weight:800}.resource-body p{font-size:14px;color:var(--muted);margin:0 0 18px}.resource-meta{display:flex;justify-content:space-between;margin-top:auto;padding-top:17px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.resource-meta b{color:var(--teal)}
.process-layout{display:grid;grid-template-columns:1fr 1.3fr;gap:80px;align-items:start}.process-note{padding:30px;background:var(--charcoal);color:#fff;border-radius:var(--radius);margin-top:28px}.process-note p{color:#c8d5ce;font-size:14px;margin:13px 0 0}.process-list{border-top:1px solid var(--line)}.process-item{display:grid;grid-template-columns:72px 1fr;gap:24px;padding:25px 0;border-bottom:1px solid var(--line)}.process-no{font-size:30px;font-weight:850;color:var(--teal);line-height:1}.process-item h3{font-size:20px;margin:0 0 5px}.process-item p{margin:0;color:var(--muted);font-size:14px}
.image-feature{display:grid;grid-template-columns:1.12fr .88fr;gap:0;background:var(--warm);border-radius:var(--radius);overflow:hidden}.image-feature img{width:100%;height:100%;min-height:390px;object-fit:cover}.feature-copy{padding:54px 48px}.feature-copy h2{font-size:34px;line-height:1.3;margin:12px 0 18px;letter-spacing:-.04em}.feature-copy p{color:var(--muted);font-size:15px}.check-list{list-style:none;padding:0;margin:25px 0 0}.check-list li{padding:10px 0 10px 27px;border-top:1px solid rgba(29,41,38,.14);position:relative;font-size:14px}.check-list li:before{content:"＋";position:absolute;left:0;color:var(--teal);font-weight:800}
.faq-wrap{max-width:930px;margin-top:38px}.faq-item{border-top:1px solid var(--line)}.faq-item:last-child{border-bottom:1px solid var(--line)}.faq-button{width:100%;min-height:67px;padding:18px 4px;background:transparent;display:flex;justify-content:space-between;align-items:center;text-align:left;color:var(--ink);font-weight:800;cursor:pointer}.faq-button span:last-child{font-size:23px;font-weight:400;color:var(--teal);transition:.25s}.faq-button[aria-expanded=true] span:last-child{transform:rotate(45deg)}.faq-answer{color:var(--muted);font-size:14px;padding:0 45px 22px 4px}
.contact-panel{background:var(--mint);border-radius:var(--radius);padding:55px 58px;display:grid;grid-template-columns:.9fr 1.1fr;gap:65px;align-items:start}.contact-panel h2{font-size:38px;line-height:1.25;letter-spacing:-.05em;margin:12px 0 17px}.contact-panel p{color:var(--muted);font-size:15px}.contact-info{margin-top:28px;font-size:14px}.contact-info strong{display:block;color:var(--teal);font-size:21px;margin-bottom:3px}.form-control,.form-select{min-height:48px;border:1px solid #cbd6cf;border-radius:9px;background:rgba(255,254,250,.8);color:var(--ink);font-size:15px}.form-control:focus,.form-select:focus{border-color:var(--teal);background:#fff}.form-label{font-size:13px;font-weight:800;margin-bottom:7px}.form-note{font-size:12px;color:var(--muted);margin-top:13px}.form-result{display:none;margin-top:14px;color:var(--teal);font-weight:700;font-size:14px}
.site-footer{background:var(--charcoal);color:#dce5df;padding:66px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr .7fr .8fr 1.15fr;gap:40px}.footer-brand{font-size:19px;font-weight:850}.footer-brand small{display:block;color:#9eafa7;font-size:12px;font-weight:500;margin-top:6px}.footer-copy{max-width:320px;color:#9eafa7;font-size:13px;margin-top:20px}.footer-heading{font-size:13px;color:#fff;font-weight:800;margin-bottom:16px}.footer-links{list-style:none;padding:0;margin:0;color:#9eafa7;font-size:13px}.footer-links li{margin:8px 0}.footer-links a{transition:.2s}.footer-links a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid #35423e;margin-top:48px;padding-top:20px;color:#81928a;font-size:12px}
.fixed-bar{position:fixed;bottom:0;left:0;right:0;z-index:1030;background:rgba(255,254,250,.95);border-top:1px solid var(--line);padding:10px 0;box-shadow:0 -6px 20px rgba(24,32,30,.06)}.fixed-inner{display:flex;justify-content:space-between;align-items:center;gap:18px}.fixed-inner strong{font-size:14px}.fixed-actions{display:flex;gap:9px}.fixed-actions .btn-brand,.fixed-actions .btn-light-outline{min-height:40px;padding:7px 17px;font-size:13px}
@media(max-width:992px){.nav-list{display:none}.menu-toggle{display:block}.main-nav{height:68px}.nav-cta{margin-left:auto}.process-layout,.image-feature,.contact-panel{grid-template-columns:1fr;gap:30px}.image-feature img{min-height:280px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.section{padding:75px 0}.topbar-info span:first-child{display:none}.page-head{min-height:390px;padding:58px 0}.filter-bar{display:block}.filter-list{margin-top:20px}.resource-card img{height:155px}.feature-copy{padding:35px 28px}.contact-panel{padding:36px 25px}.contact-panel h2{font-size:31px}.fixed-bar{padding:8px 0}.fixed-inner>strong{display:none}.fixed-inner,.fixed-actions{width:100%}.fixed-actions .btn-brand,.fixed-actions .btn-light-outline{flex:1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}}
@media(max-width:520px){.topbar{height:30px}.topbar .container{justify-content:flex-end}.main-nav{gap:10px}.brand{font-size:16px}.brand-mark{width:30px;height:30px}.nav-cta{display:none}.page-head h1{font-size:40px}.page-head p{font-size:15px}.section-title{font-size:31px}.process-item{grid-template-columns:48px 1fr;gap:12px}.process-no{font-size:25px}.footer-grid{grid-template-columns:1fr;gap:28px}.footer-bottom{padding-bottom:55px}.fixed-inner{padding:0 3px}}
@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}