/* roulang page: index */
:root{--blue:#2f6bff;--blue-dark:#2054d6;--cyan:#38b8c7;--ink:#17233d;--muted:#63718a;--pale:#f5f8fc;--line:#dce5f2;--white:#fff;--orange:#f59b45;--shadow:0 14px 38px rgba(37,78,140,.09);--radius:18px}
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--pale);line-height:1.8;font-size:16px}
    a{color:inherit;text-decoration:none} img{display:block;width:100%;object-fit:cover} button,input,textarea,select{font:inherit} button{cursor:pointer;border:0}
    .container{width:min(1200px,calc(100% - 40px));margin:auto}.site-header{height:76px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .nav{height:76px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--blue);white-space:nowrap}.cloud-mark{width:34px;height:24px;border:2px solid var(--blue);border-radius:18px 18px 12px 12px;position:relative}.cloud-mark:after{content:"";position:absolute;width:16px;height:2px;background:var(--cyan);right:-7px;bottom:4px;transform:rotate(-18deg)}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1}.nav-links a{font-size:14px;color:#52617b;padding:9px 12px;border-radius:9px;transition:.2s}.nav-links a:hover,.nav-links a.active{color:var(--blue);background:#edf3ff}.nav-links a.active{font-weight:700}
    .nav-actions{display:flex;align-items:center;gap:9px}.search{height:38px;width:175px;border:1px solid var(--line);border-radius:10px;background:#f8faff;padding:0 12px;color:var(--ink);outline:0}.search:focus{border-color:var(--blue);box-shadow:0 0 0 3px #dfe9ff}.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 18px;border-radius:11px;font-weight:700;font-size:14px;transition:.2s}.btn-primary{background:var(--blue);color:#fff;box-shadow:0 7px 16px rgba(47,107,255,.2)}.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 10px 20px rgba(47,107,255,.28)}.btn-outline{border:1px solid #b9cdf3;background:#fff;color:var(--blue)}.btn-outline:hover{border-color:var(--blue);transform:translateY(-2px)}.btn:active{transform:translateY(0)}.btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #9fc1ff;outline-offset:3px}.menu-btn{display:none;background:#edf3ff;color:var(--blue);padding:8px 11px;border-radius:9px}
    .hero{padding:72px 0 44px;background:#fff}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center}.eyebrow,.section-kicker{color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.12em;text-transform:uppercase}.hero h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.04em;margin:16px 0 20px}.hero h1 span{color:var(--blue)}.hero-copy{font-size:17px;color:var(--muted);max-width:620px;line-height:1.9}.hero-buttons{display:flex;gap:12px;margin:28px 0}.hero-points{display:flex;gap:25px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:20px}.hero-points strong{display:block;font-size:22px}.hero-points small{color:var(--muted);font-size:13px}.hero-art{min-height:390px;border-radius:26px;overflow:hidden;position:relative;background:#dcecff url('/assets/images/backpic/back-1.webp') center/cover}.art-panel{position:absolute;left:28px;right:28px;bottom:26px;background:rgba(255,255,255,.94);border-radius:16px;padding:20px;box-shadow:var(--shadow)}.art-panel header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.status{font-size:12px;color:#168c88;background:#e7faf8;padding:4px 9px;border-radius:20px}.status i{display:inline-block;width:7px;height:7px;background:var(--cyan);border-radius:50%;margin-right:5px}.progress{height:8px;background:#e8eef8;border-radius:8px;overflow:hidden;margin:10px 0}.progress b{display:block;width:76%;height:100%;background:var(--cyan);border-radius:8px}.art-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}.art-list div{padding:10px;background:#f5f8fc;border-radius:10px;font-size:13px}.quick{padding:16px 0;border-top:1px solid var(--line);background:#fff}.quick-row{display:flex;gap:10px;flex-wrap:wrap}.quick a{padding:8px 15px;background:#f1f5fb;border-radius:20px;color:#52617b;font-size:13px}.quick a:hover{background:#e4edff;color:var(--blue)}
    section{padding:84px 0}.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:30px}.section-head h2{font-size:34px;line-height:1.25;margin-top:8px}.section-head p{max-width:560px;color:var(--muted);font-size:15px}
    .pain{background:#f7faff}.pain-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}.feature-card img{height:250px}.feature-body{padding:24px}.feature-body h3{font-size:23px;margin-bottom:8px}.feature-body p,.mini p,.case p,.quote p{color:var(--muted);font-size:14px}.mini-stack{display:grid;gap:16px}.mini{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px;display:flex;gap:16px}.mini-icon{flex:0 0 42px;height:42px;border-radius:12px;background:#eaf1ff;color:var(--blue);display:grid;place-items:center;font-weight:800;font-size:18px}.mini h3{font-size:18px;margin-bottom:3px}.tag{display:inline-block;font-size:12px;color:var(--blue);background:#edf3ff;border-radius:20px;padding:3px 9px;margin-bottom:9px}.tag.green{color:#138989;background:#e5faf8}.tag.orange{color:#aa691a;background:#fff3e5}
    .steps{background:#fff}.step-line{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative}.step-line:before{content:"";position:absolute;top:32px;left:12%;right:12%;height:2px;background:#cfe0fa}.step{position:relative;padding:0 25px;text-align:center}.step-num{position:relative;margin:0 auto 20px;width:64px;height:64px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:20px;font-weight:800;border:8px solid #edf3ff}.step h3{font-size:19px;margin-bottom:7px}.step p{color:var(--muted);font-size:14px}
    .metrics{background:#edf6ff}.metric-band{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden}.metric{padding:27px 25px;border-right:1px solid var(--line)}.metric:last-child{border:0}.metric strong{font-size:38px;color:var(--blue);display:block;line-height:1.2}.metric span{font-weight:700}.metric p{font-size:13px;color:var(--muted);margin-top:5px}.partner-row{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:24px}.partner{padding:16px 12px;border:1px solid #cfe1f4;border-radius:12px;background:#f8fbff;text-align:center}.partner b{display:block;font-size:14px;color:#33527e}.partner small{display:block;color:var(--muted);font-size:12px;margin-top:3px}
    .cases{background:#fff}.case-grid{display:grid;grid-template-columns:1.3fr .7fr .7fr;gap:18px}.case{border:1px solid var(--line);border-radius:17px;overflow:hidden;background:#fff;box-shadow:var(--shadow);transition:.22s}.case:hover,.quote:hover{transform:translateY(-3px);box-shadow:0 18px 38px rgba(37,78,140,.14)}.case img{height:190px}.case:first-child img{height:270px}.case-body{padding:18px}.case h3{font-size:19px;line-height:1.4;margin:4px 0 7px}.case p{line-height:1.7}.text-link{display:inline-block;color:var(--blue);font-size:13px;font-weight:700;margin-top:13px}
    .quotes{padding-top:30px}.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.quote{background:#f8fbff;border:1px solid var(--line);padding:21px;border-radius:15px;transition:.2s}.quote strong{display:block;margin-top:14px;font-size:14px}.quote strong:before{content:"“";color:var(--blue);font-size:23px;margin-right:5px}
    .updates{background:#f7faff}.update-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}.news-list,.hot-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:10px 24px}.news-item{display:flex;justify-content:space-between;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}.news-item:last-child{border:0}.news-item h3{font-size:16px;margin-bottom:5px}.news-item p{color:var(--muted);font-size:13px;line-height:1.75}.news-item time{font-size:12px;color:#8492a8;white-space:nowrap}.hot-box{padding:24px}.hot-box h3{font-size:20px;margin-bottom:15px}.hot{padding:15px 0;border-bottom:1px solid var(--line)}.hot:last-child{border:0}.hot b{color:var(--blue);margin-right:8px}.hot p{display:inline;color:var(--muted);font-size:14px}
    .brand-story{background:#fff}.story-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:60px;align-items:start}.story-title{font-size:38px;line-height:1.3}.story-copy p{color:var(--muted);margin-bottom:16px}.story-note{border-left:3px solid var(--cyan);padding-left:18px;color:#3e577c;font-weight:600}
    .faq{background:#edf6ff}.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:50px}.faq-intro p{color:var(--muted);margin-top:15px}.faq-list{display:grid;gap:10px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}.faq-q{width:100%;background:#fff;text-align:left;padding:17px 20px;display:flex;justify-content:space-between;align-items:center;font-weight:700;color:var(--ink)}.faq-q span{font-size:22px;color:var(--blue);transition:.2s}.faq-a{max-height:0;overflow:hidden;padding:0 20px;color:var(--muted);font-size:14px;transition:.25s}.faq-item.open .faq-a{max-height:180px;padding:0 20px 18px}.faq-item.open .faq-q span{transform:rotate(45deg)}
    .contact{padding-top:50px}.contact-box{background:#dff6f7;border-radius:22px;padding:38px;display:grid;grid-template-columns:.85fr 1.15fr;gap:44px}.contact-box h2{font-size:31px;line-height:1.3;margin:8px 0 12px}.contact-box p{color:#52717e}.form{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:flex;flex-direction:column;gap:5px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700}.field label em{color:#d85c50;font-style:normal}.field input,.field select,.field textarea{border:1px solid #b8d8e2;border-radius:10px;background:#fff;padding:11px 12px;outline:0;color:var(--ink)}.field textarea{min-height:95px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #cce6ff}.form-message{grid-column:1/-1;font-size:13px;color:#17867f;min-height:22px}.privacy{font-size:12px!important;margin-top:10px}
    footer{background:#182946;color:#dce7f8;padding:50px 0 20px}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr .8fr;gap:35px}.footer-brand{color:#fff;font-size:23px;font-weight:800}.footer-grid h3{font-size:14px;color:#fff;margin-bottom:14px}.footer-grid a{display:block;color:#aebdd3;font-size:13px;margin:7px 0}.footer-grid a:hover{color:#fff}.footer-desc{color:#aebdd3;font-size:13px;line-height:1.8;margin-top:12px}.footer-bottom{border-top:1px solid #30425f;margin-top:35px;padding-top:18px;color:#99abc4;font-size:12px;line-height:2}.footer-bottom a{display:inline;color:#b9c9de;margin-left:12px}
    .no-result{display:none;background:#fff4e5;color:#9a671f;border-radius:10px;padding:10px 14px;font-size:13px;margin-top:8px}
    @media(max-width:1024px){.nav{gap:12px}.nav-links a{padding:8px 7px}.search{width:140px}.hero-grid{gap:30px}.partner-row{grid-template-columns:repeat(3,1fr)}}
    @media(max-width:768px){.site-header,.nav{height:68px}.nav-links,.nav-actions{display:none}.menu-btn{display:block;margin-left:auto}.hero{padding:45px 0 30px}.hero-grid,.pain-grid,.update-layout,.story-grid,.faq-grid,.contact-box{grid-template-columns:1fr}.hero-art{min-height:330px}.metric-band{grid-template-columns:repeat(2,1fr)}.metric:nth-child(2){border-right:0}.metric:nth-child(-n+2){border-bottom:1px solid var(--line)}.case-grid{grid-template-columns:1fr 1fr}.case:first-child{grid-column:1/-1}.quote-grid{grid-template-columns:1fr 1fr}.step-line{gap:15px}.step{padding:0 8px}.section-head{display:block}.section-head p{margin-top:12px}}
    @media(max-width:640px){.container{width:min(100% - 28px,1200px)}section{padding:58px 0}.hero h1{font-size:36px}.hero-copy{font-size:15px}.hero-buttons{flex-direction:column;align-items:stretch}.hero-points{gap:15px}.section-head h2{font-size:28px}.step-line{grid-template-columns:1fr;gap:25px}.step-line:before{top:10%;bottom:10%;left:calc(50% - 1px);width:2px;height:auto;right:auto}.step{display:grid;grid-template-columns:65px 1fr;text-align:left;align-items:center;gap:15px}.step-num{margin:0}.step p{grid-column:2;margin-top:-22px}.case-grid,.quote-grid{grid-template-columns:1fr}.case:first-child{grid-column:auto}.partner-row{grid-template-columns:repeat(2,1fr)}.form{grid-template-columns:1fr}.field.full{grid-column:auto}.contact-box{padding:25px 20px}.footer-grid{grid-template-columns:1fr 1fr}.news-item{display:block}.news-item time{display:block;margin-top:7px}.art-list{grid-template-columns:1fr}}
    @media(max-width:375px){.hero h1{font-size:31px}.metric strong{font-size:29px}.footer-grid{grid-template-columns:1fr}.btn{width:100%}}

/* roulang page: category1 */
:root{
      --blue:#2f6bff;
      --blue-dark:#2054d6;
      --cyan:#38b8c7;
      --ink:#17233d;
      --muted:#63718a;
      --pale:#f5f8fc;
      --line:#dce5f2;
      --white:#fff;
      --orange:#f59b45;
      --green:#138989;
      --shadow:0 14px 38px rgba(37,78,140,.09);
      --shadow-hover:0 18px 44px rgba(37,78,140,.15);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--ink);
      background:var(--pale);
      line-height:1.8;
      font-size:16px;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;object-fit:cover}
    button,input,select{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(1200px,calc(100% - 40px));margin:auto}
    .site-header{
      height:76px;
      background:rgba(255,255,255,.97);
      border-bottom:1px solid var(--line);
      position:sticky;
      top:0;
      z-index:20;
    }
    .nav{height:76px;display:flex;align-items:center;gap:27px}
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      font-weight:800;
      font-size:22px;
      color:var(--blue);
      white-space:nowrap;
    }
    .brand-mark{
      width:29px;height:22px;display:inline-flex;align-items:center;justify-content:center;
      border:2px solid var(--blue);border-radius:15px 15px 11px 11px;
      font-size:17px;line-height:1;
    }
    .nav-links{display:flex;align-items:center;gap:3px;flex:1}
    .nav-links a{
      font-size:14px;color:#52617b;padding:9px 11px;border-radius:9px;
      transition:.2s ease-out;white-space:nowrap;
    }
    .nav-links a:hover,.nav-links a.active{color:var(--blue);background:#edf3ff}
    .nav-links a.active{font-weight:700}
    .nav-actions{display:flex;align-items:center;gap:9px}
    .search-wrap{position:relative}
    .search{
      height:38px;width:178px;border:1px solid var(--line);border-radius:10px;
      background:#f8faff;padding:0 12px;color:var(--ink);outline:0;
    }
    .search::placeholder{color:#8997aa}
    .search:focus{border-color:var(--blue);box-shadow:0 0 0 3px #dfe9ff}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:7px;
      padding:11px 18px;border-radius:11px;font-weight:700;font-size:14px;
      transition:.2s ease-out;white-space:nowrap;
    }
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 7px 16px rgba(47,107,255,.2)}
    .btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 10px 20px rgba(47,107,255,.28)}
    .btn-outline{border:1px solid #b9cdf3;background:#fff;color:var(--blue)}
    .btn-outline:hover{border-color:var(--blue);transform:translateY(-2px);box-shadow:0 7px 18px rgba(47,107,255,.1)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{
      outline:3px solid #9fc1ff;outline-offset:3px
    }
    .menu-btn{display:none;background:#edf3ff;color:var(--blue);padding:8px 11px;border-radius:9px}
    .page-hero{
      position:relative;
      overflow:hidden;
      padding:48px 0 55px;
      background:#fff url('/assets/images/backpic/back-2.webp') center/cover;
      isolation:isolate;
    }
    .page-hero:before{
      content:"";position:absolute;inset:0;background:rgba(255,255,255,.88);z-index:-1
    }
    .breadcrumbs{font-size:13px;color:#77869e;margin-bottom:28px}
    .breadcrumbs a{color:var(--blue)}
    .hero-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:55px;align-items:center}
    .eyebrow,.section-kicker{
      color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.1em
    }
    .page-hero h1{
      font-size:clamp(36px,5vw,56px);line-height:1.18;letter-spacing:-.04em;
      margin:13px 0 18px
    }
    .hero-copy{font-size:17px;color:var(--muted);max-width:650px;line-height:1.9;margin:0}
    .hero-actions{display:flex;gap:12px;margin-top:27px}
    .signal-panel{
      min-height:265px;border:1px solid #cbdcf4;border-radius:24px;background:rgba(255,255,255,.88);
      box-shadow:var(--shadow);padding:24px;position:relative
    }
    .signal-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:17px}
    .signal-title{font-weight:800;font-size:18px}
    .status{display:inline-flex;align-items:center;gap:7px;color:var(--green);font-size:13px}
    .status i{width:8px;height:8px;border-radius:50%;background:var(--cyan);display:inline-block;animation:pulse 2s infinite}
    @keyframes pulse{50%{opacity:.45;transform:scale(.8)}}
    .signal-list{display:grid;gap:12px;margin-top:18px}
    .signal-row{display:grid;grid-template-columns:95px 1fr 45px;gap:12px;align-items:center;font-size:13px}
    .signal-row span{color:var(--muted)}
    .progress{height:7px;border-radius:8px;background:#e8eff8;overflow:hidden}
    .progress b{display:block;height:100%;border-radius:inherit;background:var(--blue)}
    .signal-row strong{text-align:right;color:var(--blue);font-size:13px}
    .filter-bar{padding:25px 0;background:#fff;border-bottom:1px solid var(--line)}
    .filter-inner{display:flex;align-items:center;gap:13px;flex-wrap:wrap}
    .filter-label{font-size:14px;color:var(--muted);font-weight:700;margin-right:3px}
    .filter{
      border:1px solid var(--line);background:#f8faff;color:#60708a;
      border-radius:22px;padding:8px 16px;font-size:13px;transition:.2s
    }
    .filter:hover,.filter.selected{background:#edf3ff;color:var(--blue);border-color:#bfd2fa}
    .filter:disabled{opacity:.5;cursor:not-allowed}
    .filter-search{margin-left:auto;display:flex;gap:8px}
    .filter-search input{height:38px;border:1px solid var(--line);border-radius:10px;padding:0 12px;width:205px;outline:0}
    .filter-search input:focus{border-color:var(--blue);box-shadow:0 0 0 3px #dfe9ff}
    main{padding-bottom:30px}
    .content-section{padding:72px 0 35px}
    .section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:27px}
    .section-head h2{font-size:33px;line-height:1.25;margin:8px 0 0}
    .section-head p{max-width:535px;color:var(--muted);font-size:15px;margin:0}
    .featured{
      display:grid;grid-template-columns:1.08fr .92fr;background:#fff;border:1px solid var(--line);
      border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s
    }
    .featured:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
    .featured-image{min-height:320px;overflow:hidden}
    .featured-image img{height:100%;transition:.35s}
    .featured:hover img,.article-card:hover img{transform:scale(1.035)}
    .featured-body{padding:34px 37px;display:flex;flex-direction:column;justify-content:center}
    .tag{
      display:inline-block;width:max-content;font-size:12px;color:var(--blue);background:#edf3ff;
      border-radius:20px;padding:3px 10px;margin-bottom:12px
    }
    .tag.green{color:#138989;background:#e5faf8}
    .tag.orange{color:#aa691a;background:#fff3e5}
    .featured h3{font-size:27px;line-height:1.4;margin:0 0 12px}
    .featured p{color:var(--muted);font-size:15px;margin:0 0 18px}
    .meta{display:flex;gap:15px;color:#8996a9;font-size:12px;align-items:center}
    .read-link{color:var(--blue);font-size:14px;font-weight:800;margin-top:20px}
    .article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:20px}
    .article-card{
      display:grid;grid-template-columns:155px 1fr;min-height:168px;background:#fff;
      border:1px solid var(--line);border-radius:15px;overflow:hidden;transition:.25s;box-shadow:0 8px 22px rgba(37,78,140,.05)
    }
    .article-card:hover,.article-card:focus-within{border-color:#bcd0f3;box-shadow:var(--shadow-hover);transform:translateY(-2px)}
    .article-card img{height:100%;min-height:168px;transition:.35s}
    .article-body{padding:19px 20px}
    .article-body .tag{margin-bottom:7px}
    .article-body h3{font-size:18px;line-height:1.45;margin:0 0 7px}
    .article-body p{font-size:13px;color:var(--muted);line-height:1.7;margin:0 0 9px}
    .empty-state{display:none;margin-top:18px;border:1px dashed #b8cbea;border-radius:14px;background:#fff;padding:25px;text-align:center;color:var(--muted)}
    .info-strip{
      margin-top:56px;padding:30px 35px;border-radius:20px;background:#edf6ff;
      border:1px solid #d3e5fb;display:flex;align-items:center;justify-content:space-between;gap:25px
    }
    .info-strip h2{font-size:23px;margin:0 0 6px}
    .info-strip p{color:var(--muted);margin:0;font-size:14px}
    .faq-section{padding:72px 0}
    .faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:55px;align-items:start}
    .faq-intro h2{font-size:33px;line-height:1.3;margin:9px 0 14px}
    .faq-intro p{color:var(--muted);font-size:15px}
    .faq-note{margin-top:25px;padding:17px 18px;background:#fff;border-left:3px solid var(--cyan);border-radius:10px;color:#62738d;font-size:13px}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}
    .faq-q{width:100%;background:#fff;text-align:left;padding:17px 20px;display:flex;justify-content:space-between;align-items:center;font-weight:700;color:var(--ink)}
    .faq-q span{font-size:22px;color:var(--blue);transition:.2s}
    .faq-a{max-height:0;overflow:hidden;padding:0 20px;color:var(--muted);font-size:14px;transition:.25s}
    .faq-item.open .faq-a{max-height:180px;padding:0 20px 18px}
    .faq-item.open .faq-q span{transform:rotate(45deg)}
    .cta-section{padding:0 0 78px}
    .cta{
      padding:42px 48px;border-radius:22px;background:linear-gradient(105deg,#e9f2ff,#eafafa);
      border:1px solid #cfe0f5;display:flex;align-items:center;justify-content:space-between;gap:30px
    }
    .cta h2{font-size:29px;margin:0 0 7px}
    .cta p{color:var(--muted);margin:0;font-size:15px}
    footer{background:#182946;color:#dce7f8;padding:50px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr .9fr;gap:35px}
    .footer-brand{color:#fff;font-size:23px;font-weight:800}
    .footer-desc{color:#aebed5;font-size:13px;max-width:285px;line-height:1.8}
    footer h3{font-size:14px;color:#fff;margin:4px 0 13px}
    footer a{display:block;color:#aebed5;font-size:13px;margin:8px 0;transition:.2s}
    footer a:hover{color:#fff;transform:translateX(2px)}
    .footer-bottom{border-top:1px solid rgba(220,231,248,.16);margin-top:35px;padding-top:18px;color:#91a5c0;font-size:12px;display:flex;gap:18px;flex-wrap:wrap}
    .footer-bottom a{display:inline;color:#b8c9df;margin:0}
    @media(max-width:1024px){
      .nav{gap:14px}.nav-links a{padding:8px 7px;font-size:13px}.search{width:145px}
      .hero-layout{gap:30px}.article-card{grid-template-columns:130px 1fr}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}
    }
    @media(max-width:768px){
      .site-header,.nav{height:68px}.nav{position:relative}.brand{font-size:20px}
      .menu-btn{display:block}.nav-links{
        display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
        padding:12px 20px;box-shadow:0 12px 25px rgba(37,78,140,.1);flex-direction:column;align-items:stretch
      }
      .nav-links.show{display:flex}.nav-links a{padding:12px 13px}.nav-actions{margin-left:auto}.nav-actions .btn-outline{display:none}
      .search{width:145px}.hero-layout,.featured,.faq-grid{grid-template-columns:1fr}
      .page-hero{padding:35px 0 42px}.signal-panel{min-height:230px}.featured-image{min-height:240px}.featured-body{padding:28px}
      .article-grid{grid-template-columns:1fr}.filter-search{width:100%;margin-left:0}.filter-search input{flex:1}
      .section-head{display:block}.section-head p{margin-top:12px}.info-strip,.cta{display:block;padding:28px}
      .info-strip .btn{margin-top:18px}.cta .btn{margin-top:20px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
    @media(max-width:520px){
      .container{width:min(100% - 28px,1200px)}
      .nav-actions{gap:6px}.nav-actions .search-wrap{display:none}
      .page-hero h1{font-size:36px}.hero-copy{font-size:15px}
      .hero-actions{flex-direction:column;align-items:stretch}.hero-actions .btn{width:100%}
      .signal-panel{padding:18px}.signal-row{grid-template-columns:77px 1fr 38px;gap:8px;font-size:12px}
      .filter-inner{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}.filter-label{flex:0 0 auto}.filter{flex:0 0 auto}
      .featured h3{font-size:23px}.featured-body{padding:23px}
      .article-card{grid-template-columns:112px 1fr;min-height:145px}.article-card img{min-height:145px}
      .article-body{padding:14px}.article-body h3{font-size:16px}.article-body p{font-size:12px}
      .content-section,.faq-section{padding:52px 0 25px}.section-head h2,.faq-intro h2{font-size:27px}
      .info-strip h2,.cta h2{font-size:23px}.footer-grid{grid-template-columns:1fr 1fr;gap:24px}
      .footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block;line-height:2.2}
      .footer-bottom a{margin-right:12px}
    }
    @media(max-width:375px){
      .container{width:calc(100% - 24px)}.brand{font-size:18px}.page-hero h1{font-size:31px}
      .signal-row{grid-template-columns:67px 1fr 34px}.article-card{grid-template-columns:1fr}
      .article-card img{height:145px}.footer-grid{grid-template-columns:1fr}
    }

/* roulang page: category3 */
:root{--blue:#2f6bff;--blue-dark:#2054d6;--cyan:#38b8c7;--ink:#17233d;--muted:#63718a;--pale:#f5f8fc;--line:#dce5f2;--white:#fff;--orange:#f59b45;--shadow:0 14px 38px rgba(37,78,140,.09);--radius:18px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--pale);line-height:1.8;font-size:16px}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(1200px,calc(100% - 40px));margin:auto}
.site-header{height:76px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav{height:76px;display:flex;align-items:center;gap:25px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--blue);white-space:nowrap}
.brand-mark{width:29px;height:20px;border:2px solid var(--blue);border-radius:15px 15px 11px 11px;display:inline-block;position:relative}
.brand-mark:after{content:"";position:absolute;width:12px;height:2px;background:var(--cyan);right:-6px;bottom:3px;transform:rotate(-28deg)}
.nav-links{display:flex;align-items:center;gap:3px;flex:1}
.nav-links a{font-size:14px;color:#52617b;padding:9px 11px;border-radius:9px;transition:.2s;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:var(--blue);background:#edf3ff}
.nav-links a.active{font-weight:700}
.nav-actions{display:flex;align-items:center;gap:9px}
.search{height:38px;width:175px;border:1px solid var(--line);border-radius:10px;background:#f8faff;padding:0 12px;color:var(--ink);outline:0}
.search:focus{border-color:var(--blue);box-shadow:0 0 0 3px #dfe9ff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 18px;border-radius:11px;font-weight:700;font-size:14px;transition:.2s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 7px 16px rgba(47,107,255,.2)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 10px 20px rgba(47,107,255,.28)}
.btn-outline{border:1px solid #b9cdf3;background:#fff;color:var(--blue)}
.btn-outline:hover{border-color:var(--blue);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #9fc1ff;outline-offset:3px}
.menu-btn{display:none;background:#edf3ff;color:var(--blue);padding:8px 11px;border-radius:9px}
.breadcrumb{padding:25px 0 0;color:#8190a7;font-size:13px}
.breadcrumb a{color:var(--blue)}
.page-hero{padding:35px 0 62px;background:#fff}
.page-hero-grid{display:grid;grid-template-columns:1fr .85fr;gap:60px;align-items:center}
.eyebrow,.section-kicker{color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.12em}
.page-hero h1{font-size:clamp(36px,5vw,56px);line-height:1.18;letter-spacing:-.04em;margin:15px 0 18px}
.page-hero h1 span{color:var(--blue)}
.page-hero p{color:var(--muted);font-size:17px;line-height:1.9;max-width:650px}
.hero-buttons{display:flex;gap:12px;margin-top:27px}
.hero-visual{height:310px;border-radius:26px;overflow:hidden;position:relative;background:#dfeeff url('/assets/images/backpic/back-2.webp') center/cover}
.visual-card{position:absolute;left:25px;right:25px;bottom:24px;background:rgba(255,255,255,.94);border:1px solid #fff;border-radius:16px;padding:20px;box-shadow:0 16px 35px rgba(35,72,130,.14)}
.visual-card small{color:var(--blue);font-weight:700}
.visual-card h2{font-size:22px;line-height:1.35;margin:5px 0}
.visual-line{height:7px;background:#e9eff8;border-radius:9px;margin-top:14px;overflow:hidden}
.visual-line i{display:block;height:100%;width:72%;background:var(--cyan);border-radius:9px}
.filter-bar{padding:22px 0;background:#f0f5fc;border-bottom:1px solid var(--line)}
.filter-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.filter-tabs{display:flex;gap:8px;flex-wrap:wrap}
.filter-tab{border:1px solid var(--line);background:#fff;color:#63718a;border-radius:20px;padding:7px 15px;font-size:13px;transition:.2s}
.filter-tab:hover,.filter-tab.selected{background:#e8f0ff;color:var(--blue);border-color:#b9cdf3}
.sort-note{font-size:13px;color:var(--muted);white-space:nowrap}
section{padding:78px 0}
.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:34px}
.section-head h2{font-size:34px;line-height:1.25;margin-top:8px}
.section-head p{max-width:560px;color:var(--muted);font-size:15px}
.timeline{position:relative;margin-top:20px;padding-left:76px}
.timeline:before{content:"";position:absolute;left:25px;top:12px;bottom:35px;width:2px;background:#c9dbf1}
.timeline-item{position:relative;display:grid;grid-template-columns:145px 1fr;gap:28px;padding:0 0 30px}
.timeline-item:before{content:"";position:absolute;left:-58px;top:7px;width:13px;height:13px;border:4px solid var(--pale);background:var(--cyan);border-radius:50%;box-shadow:0 0 0 2px #a9dfe5}
.timeline-date{font-size:13px;color:var(--blue);font-weight:800;padding-top:2px}
.timeline-content{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 25px;box-shadow:var(--shadow);transition:.22s}
.timeline-content:hover{transform:translateX(4px);border-color:#b9cdf3;box-shadow:0 17px 40px rgba(37,78,140,.13)}
.timeline-top{display:flex;justify-content:space-between;gap:12px;align-items:center}
.timeline-content h3{font-size:20px;line-height:1.4}
.timeline-content p{color:var(--muted);font-size:14px;line-height:1.85;margin-top:8px}
.timeline-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.tag{display:inline-block;font-size:12px;color:var(--blue);background:#edf3ff;border-radius:20px;padding:3px 9px}
.tag.green{color:#138989;background:#e5faf8}
.tag.orange{color:#aa691a;background:#fff3e5}
.read-link{color:var(--blue);font-weight:700;font-size:13px;white-space:nowrap}
.case-image{width:100%;height:210px;border-radius:12px;margin-top:16px;overflow:hidden}
.case-image img{height:100%;transition:.3s}
.timeline-content:hover .case-image img{transform:scale(1.025)}
.more-box{text-align:center;margin-top:12px}
.more-box p{font-size:13px;color:var(--muted);margin-bottom:15px}
.related{background:#fff}
.related-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:42px;align-items:start}
.related-intro{padding:10px 0}
.related-intro h2{font-size:32px;line-height:1.35;margin:10px 0 14px}
.related-intro p{color:var(--muted);font-size:15px}
.related-links{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.related-links a{display:flex;align-items:center;justify-content:space-between;background:#f6f9fd;border:1px solid var(--line);border-radius:13px;padding:17px;color:#40516d;font-weight:700;transition:.2s}
.related-links a span{color:var(--blue);font-size:20px}
.related-links a:hover{background:#edf3ff;border-color:#bed0f1;color:var(--blue);transform:translateY(-2px)}
.faq{background:#edf6ff}
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:50px}
.faq-intro h2{font-size:34px;line-height:1.3;margin-top:9px}
.faq-intro p{color:var(--muted);margin-top:15px}
.faq-list{display:grid;gap:10px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}
.faq-q{width:100%;background:#fff;text-align:left;padding:17px 20px;display:flex;justify-content:space-between;align-items:center;font-weight:700;color:var(--ink)}
.faq-q span{font-size:22px;color:var(--blue);transition:.2s}
.faq-a{max-height:0;overflow:hidden;padding:0 20px;color:var(--muted);font-size:14px;transition:.25s}
.faq-item.open .faq-a{max-height:180px;padding:0 20px 18px}
.faq-item.open .faq-q span{transform:rotate(45deg)}
.cta{padding:58px 0}
.cta-panel{background:#e4f6f8;border:1px solid #c6e8eb;border-radius:22px;padding:38px 45px;display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta-panel h2{font-size:30px;line-height:1.35;margin:6px 0 8px}
.cta-panel p{color:#587083;font-size:15px;max-width:680px}
footer{background:#182946;color:#dce7f8;padding:50px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr .8fr;gap:35px}
.footer-brand{color:#fff;font-size:23px;font-weight:800;margin-bottom:10px}
.footer-desc{color:#afc0d8;font-size:13px;line-height:1.8;max-width:250px}
footer h3{color:#fff;font-size:14px;margin-bottom:13px}
footer a{display:block;color:#afc0d8;font-size:13px;margin:7px 0;transition:.2s}
footer a:hover{color:#fff;transform:translateX(2px)}
.footer-bottom{border-top:1px solid rgba(220,231,248,.16);margin-top:36px;padding-top:18px;color:#91a6c3;font-size:12px;display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.footer-bottom a{display:inline-block;margin:0}
@media(max-width:1024px){
  .nav{gap:14px}.nav-links a{padding:8px 7px;font-size:13px}.search{width:145px}
  .page-hero-grid{gap:35px}.timeline-item{grid-template-columns:115px 1fr}
}
@media(max-width:768px){
  .container{width:min(100% - 32px,620px)}
  .site-header,.nav{height:68px}.nav-actions .search,.nav-actions .btn-outline{display:none}
  .menu-btn{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 16px;box-shadow:0 14px 28px rgba(37,78,140,.1);flex-direction:column;align-items:stretch}
  .nav-links.show{display:flex}.nav-links a{padding:12px 14px}
  .page-hero{padding:28px 0 45px}.page-hero-grid{grid-template-columns:1fr;gap:28px}.hero-visual{height:260px}
  section{padding:58px 0}.section-head{display:block;margin-bottom:25px}.section-head p{margin-top:12px}
  .filter-inner{display:block}.sort-note{margin-top:12px}.filter-tabs{overflow:auto;flex-wrap:nowrap;padding-bottom:3px}.filter-tab{white-space:nowrap}
  .timeline{padding-left:42px}.timeline:before{left:14px}.timeline-item{display:block;padding-bottom:22px}.timeline-item:before{left:-34px}.timeline-date{margin-bottom:8px}
  .related-grid,.faq-grid{grid-template-columns:1fr;gap:28px}.cta-panel{display:block;padding:30px 25px}.cta-panel .btn{margin-top:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:27px}
}
@media(max-width:520px){
  .container{width:calc(100% - 28px)}.brand{font-size:20px}.page-hero h1{font-size:36px}.page-hero p{font-size:15px}
  .hero-buttons{flex-direction:column;align-items:stretch}.hero-buttons .btn{text-align:center}
  .hero-visual{height:230px}.visual-card{left:15px;right:15px;bottom:15px;padding:15px}.visual-card h2{font-size:18px}
  .timeline-content{padding:18px}.timeline-top{display:block}.read-link{display:inline-block;margin-top:9px}
  .related-links{grid-template-columns:1fr}.related-intro h2{font-size:27px}.footer-grid{grid-template-columns:1fr}
}
@media(max-width:375px){
  .container{width:calc(100% - 24px)}.page-hero h1{font-size:31px}.section-head h2{font-size:27px}
}

/* roulang page: category4 */
:root{--blue:#2f6bff;--blue-dark:#2054d6;--cyan:#38b8c7;--ink:#17233d;--muted:#63718a;--pale:#f5f8fc;--line:#dce5f2;--white:#fff;--orange:#f59b45;--shadow:0 14px 38px rgba(37,78,140,.09);--radius:18px}
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--pale);line-height:1.8;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;object-fit:cover}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(1200px,calc(100% - 40px));margin:auto}
    .site-header{height:76px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
    .nav{height:76px;display:flex;align-items:center;gap:28px}
    .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--blue);white-space:nowrap}
    .brand-mark{width:30px;height:22px;border:2px solid var(--cyan);border-radius:16px 16px 12px 12px;display:inline-flex;align-items:center;justify-content:center;color:var(--cyan);font-size:17px;line-height:1}
    .nav-links{display:flex;align-items:center;gap:4px;flex:1}
    .nav-links a{font-size:14px;color:#52617b;padding:9px 12px;border-radius:9px;transition:.2s}
    .nav-links a:hover,.nav-links a.active{color:var(--blue);background:#edf3ff}
    .nav-links a.active{font-weight:700}
    .nav-actions{display:flex;align-items:center;gap:9px}
    .search{height:38px;width:175px;border:1px solid var(--line);border-radius:10px;background:#f8faff;padding:0 12px;color:var(--ink);outline:0}
    .search:focus{border-color:var(--blue);box-shadow:0 0 0 3px #dfe9ff}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 18px;border-radius:11px;font-weight:700;font-size:14px;transition:.2s}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 7px 16px rgba(47,107,255,.2)}
    .btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 10px 20px rgba(47,107,255,.28)}
    .btn-outline{border:1px solid #b9cdf3;background:#fff;color:var(--blue)}
    .btn-outline:hover{border-color:var(--blue);transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #9fc1ff;outline-offset:3px}
    .menu-btn{display:none;background:#edf3ff;color:var(--blue);padding:8px 11px;border-radius:9px}
    .crumbs{padding:25px 0 0;color:#7d8ba2;font-size:13px}
    .crumbs a{color:var(--blue)}
    .case-hero{padding:32px 0 72px;background:#fff}
    .hero-grid{display:grid;grid-template-columns:1fr .92fr;gap:64px;align-items:center}
    .eyebrow,.section-kicker{color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.12em}
    h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.04em;margin:15px 0 20px}
    h1 span{color:var(--blue)}
    .hero-copy{font-size:17px;color:var(--muted);max-width:620px;line-height:1.9}
    .hero-buttons{display:flex;gap:12px;margin:28px 0}
    .hero-art{min-height:360px;border-radius:26px;overflow:hidden;position:relative;background:#dcecff url('/assets/images/backpic/back-2.webp') center/cover}
    .hero-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(17,48,101,.08),rgba(255,255,255,.7))}
    .profile-panel{position:absolute;left:26px;right:26px;bottom:25px;background:rgba(255,255,255,.94);border:1px solid #fff;border-radius:18px;padding:20px;box-shadow:0 14px 30px rgba(34,73,130,.16)}
    .profile-line{display:flex;justify-content:space-between;gap:16px;align-items:center}
    .profile-name{display:flex;align-items:center;gap:12px;font-weight:800;font-size:20px}
    .avatar{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,#d9f8fa,#dce7ff);display:grid;place-items:center;color:var(--blue);font-size:22px}
    .status{font-size:12px;color:#138989;background:#e5faf8;border-radius:20px;padding:4px 10px;white-space:nowrap}
    .profile-stats{display:flex;gap:25px;margin-top:17px;border-top:1px solid var(--line);padding-top:14px}
    .profile-stats strong{display:block;font-size:21px}.profile-stats small{color:var(--muted);font-size:12px}
    section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:30px}
    .section-head h2{font-size:34px;line-height:1.25;margin-top:8px}
    .section-head p{max-width:560px;color:var(--muted);font-size:15px}
    .filter-bar{display:flex;justify-content:space-between;gap:18px;align-items:center;margin-bottom:28px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:14px}
    .filters{display:flex;gap:8px;flex-wrap:wrap}
    .filter{border:1px solid var(--line);background:#fff;color:#60708a;padding:7px 13px;border-radius:22px;font-size:13px;transition:.2s}
    .filter:hover,.filter.active{border-color:var(--blue);background:#edf3ff;color:var(--blue)}
    .sort{color:var(--muted);font-size:13px}
    .case-layout{display:grid;grid-template-columns:1.45fr .75fr;gap:22px}
    .main-case,.short-case{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.22s}
    .main-case:hover,.short-case:hover{transform:translateY(-3px);border-color:#bfd1f4;box-shadow:0 18px 42px rgba(37,78,140,.14)}
    .main-case img{height:315px}
    .short-case{padding:18px;min-height:152px;justify-content:center}
    .short-case:not(:last-child){margin-bottom:16px}
    .short-case .mini-label{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
    .short-case h3{font-size:18px;line-height:1.45;margin-bottom:7px}
    .short-case p{font-size:13px;color:var(--muted);line-height:1.75}
    .case-body{padding:25px}
    .case-body h2{font-size:25px;line-height:1.4;margin:3px 0 9px}
    .case-body p{font-size:15px;color:var(--muted);line-height:1.85}
    .tag{display:inline-block;font-size:12px;color:var(--blue);background:#edf3ff;border-radius:20px;padding:3px 9px;margin-bottom:8px}
    .tag.green{color:#138989;background:#e5faf8}
    .tag.orange{color:#aa691a;background:#fff3e5}
    .text-link{display:inline-block;color:var(--blue);font-size:13px;font-weight:700;margin-top:14px}
    .text-link:hover{text-decoration:underline}
    .evidence{background:#edf6ff}
    .evidence-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:42px;align-items:start}
    .evidence-intro h2{font-size:34px;line-height:1.3;margin:8px 0 16px}
    .evidence-intro p{color:var(--muted);font-size:15px}
    .data-stack{background:#fff;border:1px solid var(--line);border-radius:20px;padding:8px 24px}
    .data-row{display:grid;grid-template-columns:105px 1fr 85px;align-items:center;gap:17px;padding:18px 0;border-bottom:1px solid var(--line)}
    .data-row:last-child{border-bottom:0}
    .data-row strong{font-size:25px;color:var(--blue)}
    .data-row span{font-size:14px;color:var(--ink)}
    .bar{height:7px;background:#e9f0fa;border-radius:10px;overflow:hidden}
    .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:10px}
    .data-row small{font-size:12px;color:var(--muted);text-align:right}
    .detail-section{background:#fff}
    .detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:23px}
    .detail-card{border:1px solid var(--line);border-radius:18px;padding:24px;background:#fff;box-shadow:0 8px 24px rgba(37,78,140,.05)}
    .detail-card h3{font-size:20px;margin-bottom:10px}
    .detail-card p{color:var(--muted);font-size:14px;line-height:1.85}
    .detail-card ul{list-style:none;margin-top:14px;display:grid;gap:10px}
    .detail-card li{font-size:14px;padding-left:22px;position:relative}
    .detail-card li:before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;background:var(--cyan)}
    .quote-area{background:#fff}
    .quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .quote{background:#f8faff;border:1px solid var(--line);border-radius:16px;padding:22px}
    .quote p{color:var(--muted);font-size:14px;line-height:1.85}
    .quote strong{display:block;margin-top:15px;font-size:14px}
    .quote small{display:block;color:#8492a8;font-size:12px}
    .faq{background:#edf6ff}
    .faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:50px}
    .faq-intro h2{font-size:34px;line-height:1.3;margin-top:8px}
    .faq-intro p{color:var(--muted);margin-top:15px;font-size:15px}
    .faq-list{display:grid;gap:10px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}
    .faq-q{width:100%;background:#fff;text-align:left;padding:17px 20px;display:flex;justify-content:space-between;align-items:center;font-weight:700;color:var(--ink)}
    .faq-q span{font-size:22px;color:var(--blue);transition:.2s}
    .faq-a{max-height:0;overflow:hidden;padding:0 20px;color:var(--muted);font-size:14px;transition:.25s}
    .faq-item.open .faq-a{max-height:180px;padding:0 20px 18px}
    .faq-item.open .faq-q span{transform:rotate(45deg)}
    .cta{padding:58px 0}
    .cta-box{display:flex;justify-content:space-between;align-items:center;gap:30px;background:#e4f7fa;border:1px solid #c7e9ee;border-radius:22px;padding:35px 42px}
    .cta-box h2{font-size:29px;line-height:1.35;margin:7px 0 8px}
    .cta-box p{color:#557184;font-size:15px}
    .cta-actions{display:flex;gap:11px;flex-shrink:0}
    footer{background:#182946;color:#dce7f8;padding:50px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr .8fr;gap:35px}
    .footer-brand{color:#fff;font-size:23px;font-weight:800}
    .footer-desc{color:#aebdd2;font-size:13px;line-height:1.8;margin-top:12px;max-width:260px}
    footer h3{font-size:14px;color:#fff;margin-bottom:13px}
    footer a{display:block;color:#aebdd2;font-size:13px;margin:7px 0;transition:.2s}
    footer a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(220,231,248,.16);margin-top:34px;padding-top:18px;color:#9eafc8;font-size:12px;display:flex;gap:18px;flex-wrap:wrap}
    .footer-bottom a{display:inline-block;margin:0}
    @media(max-width:1024px){
      .nav{gap:15px}.nav-links a{padding:8px 7px;font-size:13px}.search{width:140px}
      .hero-grid{gap:35px}.case-layout{grid-template-columns:1.25fr .75fr}
    }
    @media(max-width:768px){
      .site-header,.nav{height:68px}.nav{position:relative}.nav-actions{margin-left:auto}
      .nav-actions .btn-outline{display:none}.search{width:160px}
      .menu-btn{display:block}.nav-links{display:none;position:absolute;top:60px;left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.show{display:flex}.nav-links a{padding:12px 14px}
      .hero-grid,.evidence-grid,.faq-grid{grid-template-columns:1fr;gap:28px}
      .case-hero{padding-bottom:55px}.hero-art{min-height:320px}
      section{padding:62px 0}.section-head{display:block}.section-head p{margin-top:12px}
      .case-layout{grid-template-columns:1fr}.short-case{min-height:0}.short-case:not(:last-child){margin-bottom:0}
      .quote-grid,.detail-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}
      .footer-grid>div:last-child{grid-column:2}
      .cta-box{display:block;padding:29px}.cta-actions{margin-top:22px}
    }
    @media(max-width:640px){
      .container{width:min(100% - 28px,1200px)}.nav-actions .search{display:none}
      h1{font-size:38px}.hero-copy{font-size:16px}.hero-buttons,.cta-actions{flex-direction:column;align-items:stretch}
      .btn{width:100%}.filter-bar{display:block}.sort{display:block;margin-top:12px}
      .main-case img{height:230px}.case-body{padding:20px}.case-body h2{font-size:22px}
      .data-row{grid-template-columns:74px 1fr;gap:12px}.data-row small{grid-column:2;text-align:left}.data-row strong{font-size:22px}
      .quote-grid,.detail-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:26px}.footer-grid>div:first-child{grid-column:1/-1}.footer-grid>div:last-child{grid-column:auto}
    }
    @media(max-width:375px){
      .container{width:calc(100% - 24px)}.brand{font-size:20px}.hero-art{min-height:285px}.profile-panel{left:14px;right:14px;bottom:14px;padding:15px}.profile-stats{gap:14px}.profile-stats strong{font-size:18px}
    }

/* roulang page: category6 */
:root{
 --blue:#2f6bff;--blue-dark:#2054d6;--cyan:#38b8c7;--ink:#17233d;--muted:#63718a;
 --pale:#f5f8fc;--line:#dce5f2;--white:#fff;--orange:#f59b45;
 --shadow:0 14px 38px rgba(37,78,140,.09);--shadow-hover:0 18px 45px rgba(37,78,140,.15);
 --radius:18px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--pale);line-height:1.8;font-size:16px}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(1200px,calc(100% - 40px));margin:auto}
.site-header{height:76px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav{height:76px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--blue);white-space:nowrap}
.brand-mark{width:30px;height:22px;border:2px solid var(--blue);border-radius:15px 15px 10px 10px;display:inline-flex;align-items:center;justify-content:center;position:relative}
.brand-mark:after{content:"";width:13px;height:2px;background:var(--cyan);position:absolute;bottom:-5px;border-radius:2px}
.nav-links{display:flex;align-items:center;gap:3px;flex:1}
.nav-links a{font-size:14px;color:#52617b;padding:9px 10px;border-radius:9px;transition:.2s;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:var(--blue);background:#edf3ff}
.nav-links a.active{font-weight:700}
.nav-actions{display:flex;align-items:center;gap:9px}
.search{height:38px;width:175px;border:1px solid var(--line);border-radius:10px;background:#f8faff;padding:0 12px;color:var(--ink);outline:0}
.search:focus{border-color:var(--blue);box-shadow:0 0 0 3px #dfe9ff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 18px;border-radius:11px;font-weight:700;font-size:14px;transition:.2s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 7px 16px rgba(47,107,255,.2)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 10px 20px rgba(47,107,255,.28)}
.btn-outline{border:1px solid #b9cdf3;background:#fff;color:var(--blue)}
.btn-outline:hover{border-color:var(--blue);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,button:focus-visible{outline:3px solid #9fc1ff;outline-offset:3px}
.menu-btn{display:none;background:#edf3ff;color:var(--blue);padding:8px 11px;border-radius:9px}
.breadcrumb{padding:26px 0 0;color:#7b899d;font-size:13px}
.breadcrumb a{color:var(--blue)}
.page-hero{padding:34px 0 64px;background:#fff}
.page-hero-grid{display:grid;grid-template-columns:1fr .9fr;gap:60px;align-items:center}
.eyebrow,.section-kicker{color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.12em}
.page-hero h1{font-size:clamp(36px,5vw,56px);line-height:1.18;letter-spacing:-.04em;margin:14px 0 18px}
.page-hero h1 span{color:var(--blue)}
.hero-copy{font-size:17px;color:var(--muted);max-width:620px;line-height:1.9}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.hero-visual{min-height:310px;border-radius:25px;overflow:hidden;position:relative;background:#dcecff url('/assets/images/backpic/back-2.webp') center/cover}
.visual-card{position:absolute;background:rgba(255,255,255,.95);border:1px solid rgba(220,229,242,.9);border-radius:15px;padding:18px;box-shadow:var(--shadow)}
.visual-card.main{left:26px;right:26px;top:28px}
.visual-card.bottom{right:18px;bottom:20px;width:58%}
.visual-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;font-weight:700}
.status{font-size:12px;color:#12888b;background:#e4faf7;padding:4px 9px;border-radius:20px}
.progress{height:7px;background:#e9eff8;border-radius:10px;overflow:hidden;margin:12px 0}
.progress i{display:block;width:72%;height:100%;background:var(--cyan);border-radius:10px}
.visual-list{display:grid;gap:9px}
.visual-list div{font-size:13px;color:#52617b;background:#f5f8fc;border-radius:9px;padding:7px 10px}
section{padding:78px 0}
.section-head{display:flex;justify-content:space-between;gap:25px;align-items:end;margin-bottom:28px}
.section-head h2{font-size:34px;line-height:1.25;margin:8px 0 0}
.section-head p{max-width:570px;color:var(--muted);font-size:15px;margin:0}
.filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:32px}
.filter-label{font-size:13px;color:var(--muted);font-weight:700;margin-right:5px}
.filter{padding:8px 15px;border:1px solid var(--line);background:#fff;color:#63718a;border-radius:20px;font-size:13px;transition:.2s}
.filter:hover,.filter.selected{background:#edf3ff;color:var(--blue);border-color:#b9cdf3}
.filter:disabled{opacity:.45;cursor:not-allowed}
.guide-layout{display:grid;grid-template-columns:250px 1fr;gap:28px;align-items:start}
.guide-sidebar{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;position:sticky;top:98px}
.guide-sidebar h3{font-size:18px;margin:0 0 15px}
.side-link{display:flex;justify-content:space-between;padding:11px 12px;color:#63718a;border-radius:9px;font-size:14px;margin:3px 0}
.side-link:hover,.side-link.active{background:#edf3ff;color:var(--blue);font-weight:700}
.side-note{border-top:1px solid var(--line);margin-top:18px;padding-top:17px;color:var(--muted);font-size:13px}
.guide-list{display:grid;gap:15px}
.guide-item{display:grid;grid-template-columns:58px 1fr auto;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px 22px;transition:.22s}
.guide-item:hover{transform:translateY(-2px);border-color:#bfd2f5;box-shadow:var(--shadow-hover)}
.guide-number{width:44px;height:44px;border-radius:13px;background:#edf3ff;color:var(--blue);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800}
.guide-item h3{font-size:18px;margin:0 0 4px}
.guide-item p{font-size:14px;color:var(--muted);margin:0}
.guide-meta{font-size:12px;color:#8492a8;white-space:nowrap}
.guide-meta b{display:block;color:#16898d;font-weight:700;margin-bottom:3px}
.hot-strip{padding:23px 25px;background:#eaf7fb;border:1px solid #c9e9ed;border-radius:17px;margin-top:28px;display:flex;align-items:center;gap:18px;overflow:hidden}
.hot-strip strong{white-space:nowrap;color:#147e87}
.hot-scroll{display:flex;gap:12px;overflow:auto;scrollbar-width:none}
.hot-scroll a{white-space:nowrap;background:#fff;padding:7px 13px;border-radius:9px;font-size:13px;color:#52617b;border:1px solid #d7edf0}
.hot-scroll a:hover{color:var(--blue);border-color:#b9cdf3}
.faq{background:#edf6ff}
.faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:50px}
.faq-intro p{color:var(--muted);margin-top:15px}
.faq-list{display:grid;gap:10px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}
.faq-q{width:100%;background:#fff;text-align:left;padding:17px 20px;display:flex;justify-content:space-between;align-items:center;font-weight:700;color:var(--ink)}
.faq-q span{font-size:22px;color:var(--blue);transition:.2s}
.faq-a{max-height:0;overflow:hidden;padding:0 20px;color:var(--muted);font-size:14px;transition:.25s}
.faq-item.open .faq-a{max-height:190px;padding:0 20px 18px}
.faq-item.open .faq-q span{transform:rotate(45deg)}
.cta{padding:70px 0}
.cta-box{background:#e7f1ff;border:1px solid #cbdcf8;border-radius:24px;padding:38px 42px;display:flex;justify-content:space-between;gap:30px;align-items:center}
.cta-box h2{font-size:30px;line-height:1.3;margin:8px 0}
.cta-box p{color:var(--muted);margin:0;max-width:650px}
.cta-actions{display:flex;gap:10px;flex-shrink:0}
footer{background:#182946;color:#dce7f8;padding:50px 0 20px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr .8fr;gap:35px}
.footer-brand{color:#fff;font-size:23px;font-weight:800}
.footer-desc{color:#aebdd2;font-size:14px;max-width:290px}
footer h3{font-size:14px;color:#fff;margin:0 0 13px}
footer a{display:block;color:#aebdd2;font-size:13px;margin:8px 0;transition:.2s}
footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(220,231,248,.16);margin-top:35px;padding-top:18px;color:#91a4bf;font-size:12px;display:flex;gap:17px;flex-wrap:wrap}
.footer-bottom a{display:inline;color:#b8c8dc;margin:0}
.no-result{display:none;background:#fff;border:1px dashed #b9cdf3;padding:25px;border-radius:15px;text-align:center;color:var(--muted)}
@media(max-width:1024px){
 .nav{gap:12px}.nav-links a{padding:9px 7px;font-size:13px}.search{width:145px}
 .page-hero-grid{gap:32px}.guide-layout{grid-template-columns:210px 1fr}
}
@media(max-width:768px){
 .site-header,.nav{height:68px}.container{width:min(100% - 30px,680px)}
 .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .nav-links.show{display:flex}.nav-links a{padding:12px 14px}
 .nav-actions{margin-left:auto}.nav-actions .search{display:none}.nav-actions .btn-outline{display:none}.menu-btn{display:block}
 .page-hero{padding:25px 0 48px}.page-hero-grid{grid-template-columns:1fr}.hero-visual{min-height:270px}
 section{padding:58px 0}.section-head{display:block}.section-head p{margin-top:13px}
 .guide-layout{display:block}.guide-sidebar{position:static;margin-bottom:20px}.side-links{display:flex;gap:6px;overflow:auto}.side-link{white-space:nowrap}
 .guide-item{grid-template-columns:48px 1fr}.guide-meta{grid-column:2}.guide-number{width:40px;height:40px}
 .faq-grid{grid-template-columns:1fr;gap:25px}.cta-box{display:block;padding:30px}.cta-actions{margin-top:22px}
 .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media(max-width:520px){
 .container{width:calc(100% - 28px)}.brand{font-size:20px}.nav-actions .btn-primary{padding:9px 12px;font-size:13px}
 .page-hero h1{font-size:36px}.hero-copy{font-size:15px}.hero-actions,.cta-actions{flex-direction:column;align-items:stretch}
 .hero-actions .btn,.cta-actions .btn{width:100%}.hero-visual{min-height:245px}.visual-card.main{left:15px;right:15px;top:18px}.visual-card.bottom{right:12px;bottom:13px;width:67%;padding:13px}
 .guide-item{padding:16px;gap:12px}.guide-item h3{font-size:16px}.guide-item p{font-size:13px}.guide-meta{font-size:11px}
 .hot-strip{display:block;padding:18px}.hot-scroll{margin-top:11px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:1/-1}
 .footer-bottom{display:block;line-height:2.2}.footer-bottom a{margin-left:10px}
}
@media(max-width:375px){
 .nav-actions .btn-primary{display:none}.page-hero h1{font-size:31px}.section-head h2{font-size:27px}
}

/* roulang page: category2 */
:root{--blue:#2f6bff;--blue-dark:#2054d6;--cyan:#38b8c7;--ink:#17233d;--muted:#63718a;--pale:#f5f8fc;--line:#dce5f2;--white:#fff;--orange:#f59b45;--green:#138989;--shadow:0 14px 38px rgba(37,78,140,.09);--shadow-hover:0 18px 45px rgba(37,78,140,.15);--radius:18px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--pale);line-height:1.8;font-size:16px}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(1200px,calc(100% - 40px));margin:auto}
.site-header{height:76px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav{height:76px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--blue);white-space:nowrap}
.brand-mark{width:31px;height:22px;position:relative;border:2px solid var(--blue);border-radius:16px 16px 12px 12px;display:inline-block}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;width:11px;height:2px;background:var(--cyan);top:8px}
.brand-mark:before{left:-5px;transform:rotate(32deg)}
.brand-mark:after{right:-5px;transform:rotate(-32deg)}
.nav-links{display:flex;align-items:center;gap:3px;flex:1}
.nav-links a{font-size:14px;color:#52617b;padding:9px 10px;border-radius:9px;transition:.2s;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:var(--blue);background:#edf3ff}
.nav-links a.active{font-weight:700}
.nav-actions{display:flex;align-items:center;gap:9px}
.search{height:38px;width:166px;border:1px solid var(--line);border-radius:10px;background:#f8faff;padding:0 12px;color:var(--ink);outline:0}
.search::placeholder{color:#8b98ac}
.search:focus{border-color:var(--blue);box-shadow:0 0 0 3px #dfe9ff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 18px;border-radius:11px;font-weight:700;font-size:14px;transition:.2s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 7px 16px rgba(47,107,255,.2)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 10px 20px rgba(47,107,255,.28)}
.btn-outline{border:1px solid #b9cdf3;background:#fff;color:var(--blue)}
.btn-outline:hover{border-color:var(--blue);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #9fc1ff;outline-offset:3px}
.menu-btn{display:none;background:#edf3ff;color:var(--blue);padding:8px 11px;border-radius:9px}
.breadcrumb{padding:22px 0 0;color:#7b8aa0;font-size:13px}
.breadcrumb a{color:var(--blue)}
.guide-hero{padding:28px 0 62px;background:#fff}
.guide-hero-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:54px;align-items:center}
.eyebrow,.section-kicker{color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.1em}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(36px,5vw,58px);line-height:1.18;letter-spacing:-.04em;margin:15px 0 20px}
h1 span{color:var(--blue)}
.hero-copy{font-size:17px;color:var(--muted);line-height:1.9}
.hero-buttons{display:flex;gap:12px;margin:27px 0 0;flex-wrap:wrap}
.video-panel{height:365px;border-radius:25px;overflow:hidden;position:relative;background:#dcecff url('/assets/images/backpic/back-2.webp') center/cover;box-shadow:var(--shadow)}
.video-panel:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(22,67,160,.1),rgba(255,255,255,.72))}
.video-copy{position:absolute;z-index:1;left:28px;right:28px;bottom:25px;background:rgba(255,255,255,.9);border:1px solid rgba(255,255,255,.9);border-radius:15px;padding:17px 18px}
.video-copy strong{display:block;font-size:18px}
.video-copy small{color:var(--muted)}
.play{position:absolute;z-index:2;left:50%;top:43%;transform:translate(-50%,-50%);width:70px;height:70px;border-radius:50%;background:#fff;color:var(--blue);font-size:25px;padding-left:5px;box-shadow:0 12px 28px rgba(37,78,140,.2);transition:.2s}
.play:hover{transform:translate(-50%,-50%) scale(1.06);color:var(--blue-dark)}
.filter-area{padding:24px 0;border-bottom:1px solid var(--line);background:#fbfdff}
.filter-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.filter-label{font-weight:700;font-size:14px;margin-right:4px}
.filter-btn{border:1px solid var(--line);background:#fff;color:var(--muted);padding:8px 14px;border-radius:20px;font-size:13px;transition:.2s}
.filter-btn:hover,.filter-btn.selected{border-color:var(--blue);background:#edf3ff;color:var(--blue)}
.filter-btn:disabled{opacity:.45;cursor:not-allowed}
.guide-main{padding:72px 0}
.content-layout{display:grid;grid-template-columns:220px 1fr;gap:36px;align-items:start}
.side-filter{position:sticky;top:102px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow)}
.side-filter h2{font-size:18px;margin-bottom:16px}
.side-filter p{color:var(--muted);font-size:13px;line-height:1.7;margin-bottom:16px}
.side-list{display:grid;gap:7px}
.side-list a{padding:10px 12px;border-radius:10px;color:#5c6b82;font-size:14px}
.side-list a:hover,.side-list a.active{background:#edf3ff;color:var(--blue);font-weight:700}
.flow-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}
.flow-head h2{font-size:34px;line-height:1.25;margin:7px 0 0}
.flow-head p{color:var(--muted);font-size:14px;margin:0}
.guide-flow{display:grid;gap:15px}
.guide-card{display:grid;grid-template-columns:76px 1fr 150px;gap:21px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:17px;padding:18px 20px;box-shadow:0 7px 22px rgba(37,78,140,.05);transition:.22s}
.guide-card:hover{transform:translateY(-2px);border-color:#bfd1f4;box-shadow:var(--shadow-hover)}
.guide-number{width:52px;height:52px;border-radius:15px;background:#edf3ff;color:var(--blue);display:grid;place-items:center;font-size:20px;font-weight:800}
.guide-card h3{font-size:19px;margin:0 0 4px}
.guide-card p{color:var(--muted);font-size:14px;line-height:1.7;margin:0}
.guide-meta{text-align:right}
.guide-meta .tag{margin:0 0 8px}
.tag{display:inline-block;font-size:12px;color:var(--blue);background:#edf3ff;border-radius:20px;padding:3px 9px}
.tag.green{color:#138989;background:#e5faf8}
.tag.orange{color:#aa691a;background:#fff3e5}
.text-link{display:inline-block;color:var(--blue);font-size:13px;font-weight:700}
.empty-state{display:none;margin-top:16px;padding:24px;border:1px dashed #b9cce9;border-radius:14px;background:#f8fbff;color:var(--muted);text-align:center}
.guide-note{margin-top:28px;background:#eaf8f9;border:1px solid #c9e9eb;border-radius:18px;padding:22px 25px;display:flex;gap:15px;align-items:flex-start}
.note-icon{width:32px;height:32px;flex:0 0 32px;border-radius:50%;background:var(--cyan);color:#fff;display:grid;place-items:center;font-weight:800}
.guide-note h3{font-size:17px;margin-bottom:4px}
.guide-note p{color:#52717d;margin:0;font-size:14px}
.visual-strip{padding:0 0 80px}
.strip-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
.strip-image{height:285px;border-radius:20px;overflow:hidden}
.strip-image img{height:100%;transition:.3s}
.strip-image:hover img{transform:scale(1.03)}
.strip-copy{background:#fff;border:1px solid var(--line);border-radius:20px;padding:31px}
.strip-copy h2{font-size:27px;line-height:1.35;margin:10px 0}
.strip-copy p{color:var(--muted);font-size:15px}
.mini-points{display:grid;gap:12px;margin:20px 0}
.mini-point{display:flex;gap:10px;font-size:14px}
.mini-point b{color:var(--cyan)}
.faq{background:#edf6ff;padding:76px 0}
.faq-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:50px}
.faq-intro h2{font-size:34px;line-height:1.3;margin:8px 0 12px}
.faq-intro p{color:var(--muted);font-size:15px}
.faq-list{display:grid;gap:10px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}
.faq-q{width:100%;background:#fff;text-align:left;padding:17px 20px;display:flex;justify-content:space-between;align-items:center;font-weight:700;color:var(--ink)}
.faq-q span{font-size:22px;color:var(--blue);transition:.2s}
.faq-a{max-height:0;overflow:hidden;padding:0 20px;color:var(--muted);font-size:14px;transition:.25s}
.faq-item.open .faq-a{max-height:180px;padding:0 20px 18px}
.faq-item.open .faq-q span{transform:rotate(45deg)}
.cta{padding:72px 0}
.cta-box{background:#e8f1ff;border:1px solid #cbdcff;border-radius:24px;padding:38px 44px;display:flex;justify-content:space-between;align-items:center;gap:30px}
.cta-box h2{font-size:30px;margin:0 0 8px}
.cta-box p{margin:0;color:var(--muted);font-size:15px}
.cta-actions{display:flex;gap:10px;flex-shrink:0}
footer{background:#fff;border-top:1px solid var(--line);padding:52px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.footer-brand{font-size:23px;color:var(--blue);font-weight:800}
.footer-desc{color:var(--muted);font-size:14px;max-width:260px;margin-top:12px}
footer h3{font-size:15px;margin:0 0 12px}
footer a{display:block;color:var(--muted);font-size:13px;margin:7px 0}
footer a:hover{color:var(--blue)}
.footer-bottom{border-top:1px solid var(--line);margin-top:35px;padding-top:18px;color:#8492a8;font-size:12px;display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{display:inline-block;margin:0}
#searchMessage{font-size:13px;color:var(--muted);margin:12px 0 0;display:none}
@media(max-width:1024px){.nav{gap:12px}.nav-links a{padding:8px 7px;font-size:13px}.search{width:145px}.content-layout{grid-template-columns:190px 1fr}}
@media(max-width:768px){.site-header,.nav{height:68px}.nav{position:relative}.nav-actions{margin-left:auto}.nav-actions .btn-outline,.nav-actions .btn-primary{display:none}.search{width:170px}.menu-btn{display:block}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:12px;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.guide-hero{padding-bottom:45px}.guide-hero-grid,.strip-grid{grid-template-columns:1fr;gap:30px}.video-panel{height:320px}.content-layout{display:block}.side-filter{position:static;margin-bottom:28px}.side-list{display:flex;overflow:auto}.side-list a{white-space:nowrap}.guide-card{grid-template-columns:60px 1fr}.guide-meta{text-align:left;grid-column:2}.faq-grid{grid-template-columns:1fr;gap:25px}.cta-box{display:block;padding:30px}.cta-actions{margin-top:22px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}}
@media(max-width:520px){.container{width:min(100% - 28px,1200px)}h1{font-size:36px}.hero-buttons,.cta-actions{display:flex;flex-direction:column;align-items:stretch}.video-panel{height:270px}.filter-row{flex-wrap:nowrap;overflow:auto;padding-bottom:3px}.filter-label{white-space:nowrap}.filter-btn{white-space:nowrap}.guide-card{grid-template-columns:45px 1fr;padding:16px}.guide-number{width:42px;height:42px;border-radius:12px;font-size:16px}.guide-card h3{font-size:17px}.guide-meta{grid-column:2}.strip-copy{padding:24px}.footer-grid{grid-template-columns:1fr 1fr;gap:24px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom a{display:inline-block;margin:8px 12px 0 0}}
@media(max-width:375px){.nav-actions{gap:5px}.search{width:125px}.brand{font-size:19px}.brand-mark{width:27px}.guide-card p{font-size:13px}}

/* roulang page: category5 */
:root{
 --blue:#2f6bff;--blue-dark:#2054d6;--cyan:#38b8c7;--ink:#17233d;--muted:#63718a;
 --pale:#f5f8fc;--line:#dce5f2;--white:#fff;--orange:#f59b45;--green:#138989;
 --shadow:0 14px 38px rgba(37,78,140,.09);--shadow-hover:0 18px 45px rgba(37,78,140,.15);
 --radius:18px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--pale);line-height:1.8;font-size:16px}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(1200px,calc(100% - 40px));margin:auto}
.site-header{height:76px;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav{height:76px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--blue);white-space:nowrap}
.brand-mark{width:29px;height:20px;border:2px solid var(--blue);border-radius:15px 15px 10px 10px;display:inline-block;position:relative}
.brand-mark:after{content:"";position:absolute;width:13px;height:6px;border-bottom:2px solid var(--cyan);right:-6px;bottom:-5px;border-radius:50%}
.nav-links{display:flex;align-items:center;gap:3px;flex:1}
.nav-links a{font-size:14px;color:#52617b;padding:9px 10px;border-radius:9px;transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--blue);background:#edf3ff}
.nav-links a.active{font-weight:700}
.nav-actions{display:flex;align-items:center;gap:9px}
.search{height:38px;width:165px;border:1px solid var(--line);border-radius:10px;background:#f8faff;padding:0 12px;color:var(--ink);outline:0}
.search:focus{border-color:var(--blue);box-shadow:0 0 0 3px #dfe9ff}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 18px;border-radius:11px;font-weight:700;font-size:14px;transition:.2s}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 7px 16px rgba(47,107,255,.2)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 10px 20px rgba(47,107,255,.28)}
.btn-outline{border:1px solid #b9cdf3;background:#fff;color:var(--blue)}
.btn-outline:hover{border-color:var(--blue);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #9fc1ff;outline-offset:3px}
.menu-btn{display:none;background:#edf3ff;color:var(--blue);padding:8px 11px;border-radius:9px}
.page-banner{background:#fff;padding:25px 0 68px}
.breadcrumb{font-size:13px;color:#7c8aa1;margin-bottom:45px}
.breadcrumb a{color:var(--blue)}
.banner-grid{display:grid;grid-template-columns:1fr .78fr;gap:65px;align-items:center}
.eyebrow,.section-kicker{color:var(--blue);font-weight:800;font-size:13px;letter-spacing:.12em}
.page-banner h1{font-size:clamp(36px,5vw,57px);line-height:1.18;letter-spacing:-.04em;margin:15px 0 20px}
.page-banner h1 span{color:var(--blue)}
.banner-copy{font-size:17px;color:var(--muted);max-width:650px}
.banner-actions{display:flex;gap:12px;margin-top:28px}
.banner-art{min-height:310px;border-radius:26px;overflow:hidden;position:relative;background:#dcecff url('/assets/images/backpic/back-2.webp') center/cover}
.art-note{position:absolute;left:22px;right:22px;bottom:22px;background:rgba(255,255,255,.94);padding:18px 20px;border-radius:15px;box-shadow:var(--shadow)}
.art-note small{color:var(--blue);font-weight:700}
.art-note strong{display:block;font-size:19px;margin-top:3px}
.section{padding:82px 0}
.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:30px}
.section-head h2{font-size:34px;line-height:1.25;margin:8px 0 0}
.section-head p{max-width:560px;color:var(--muted);font-size:15px;margin:0}
.intro-grid{display:grid;grid-template-columns:.86fr 1.14fr;gap:25px;align-items:stretch}
.intro-photo{border-radius:var(--radius);overflow:hidden;min-height:455px;background:#dfeafa}
.intro-photo img{height:100%;min-height:455px}
.intro-copy{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:38px 42px;box-shadow:var(--shadow)}
.intro-copy h3{font-size:25px;margin:0 0 15px}
.intro-copy p{color:var(--muted);margin:0 0 17px}
.signature{display:flex;gap:15px;align-items:center;border-top:1px solid var(--line);padding-top:20px;margin-top:24px}
.signature-mark{width:42px;height:42px;border-radius:13px;background:#edf3ff;color:var(--blue);display:grid;place-items:center;font-weight:800}
.signature span{display:block;color:var(--muted);font-size:13px}
.feature-strip{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
.feature-large{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:grid;grid-template-columns:.9fr 1.1fr}
.feature-large img{height:100%;min-height:250px}
.feature-body{padding:30px}
.feature-body h3{font-size:24px;line-height:1.35;margin:8px 0 10px}
.feature-body p,.mini-card p{color:var(--muted);font-size:14px;margin:0}
.tag{display:inline-block;font-size:12px;color:var(--blue);background:#edf3ff;border-radius:20px;padding:3px 9px}
.tag.green{color:#138989;background:#e5faf8}
.tag.orange{color:#aa691a;background:#fff3e5}
.side-stack{display:grid;gap:20px}
.mini-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:var(--shadow);position:relative}
.mini-card:before{content:"";width:5px;position:absolute;left:0;top:23px;bottom:23px;border-radius:5px;background:var(--cyan)}
.mini-card h3{font-size:19px;margin:0 0 8px 13px}
.mini-card p{margin-left:13px}
.timeline{position:relative;display:grid;gap:18px;margin-top:35px}
.timeline:before{content:"";position:absolute;left:27px;top:16px;bottom:18px;width:1px;background:#b9d7ef}
.timeline-item{display:grid;grid-template-columns:55px 1fr;gap:18px;position:relative}
.timeline-dot{width:55px;height:55px;border-radius:17px;background:#edf3ff;color:var(--blue);display:grid;place-items:center;font-weight:800;border:5px solid var(--pale);z-index:1}
.timeline-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:19px 23px;box-shadow:0 8px 25px rgba(37,78,140,.05)}
.timeline-card h3{font-size:18px;margin:0 0 4px}
.timeline-card p{margin:0;color:var(--muted);font-size:14px}
.label-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.label{font-size:12px;padding:3px 9px;border-radius:20px;color:#52617b;background:#f1f5fb}
.vertical-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;align-items:start}
.vertical-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);transition:.22s}
.vertical-card:nth-child(2),.vertical-card:nth-child(4){margin-top:30px}
.vertical-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#bfd0f3}
.vertical-card img{height:245px}
.vertical-card .card-body{padding:19px}
.vertical-card h3{font-size:18px;line-height:1.45;margin:8px 0}
.vertical-card p{font-size:14px;color:var(--muted);margin:0}
.info-band{background:#edf6ff}
.info-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:55px;align-items:start}
.info-intro h2{font-size:33px;line-height:1.3;margin:8px 0 15px}
.info-intro p{color:var(--muted)}
.info-list{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.info-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}
.info-item strong{font-size:18px;display:block;margin-bottom:5px}
.info-item p{color:var(--muted);font-size:14px;margin:0}
.faq{background:#fff}
.faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:55px}
.faq-intro h2{font-size:33px;line-height:1.3;margin:8px 0 15px}
.faq-intro p{color:var(--muted)}
.faq-list{display:grid;gap:10px}
.faq-item{background:#f9fbff;border:1px solid var(--line);border-radius:13px;overflow:hidden}
.faq-q{width:100%;background:transparent;text-align:left;padding:17px 20px;display:flex;justify-content:space-between;align-items:center;font-weight:700;color:var(--ink)}
.faq-q span{font-size:22px;color:var(--blue);transition:.2s}
.faq-a{max-height:0;overflow:hidden;padding:0 20px;color:var(--muted);font-size:14px;transition:.25s}
.faq-item.open .faq-a{max-height:180px;padding:0 20px 18px}
.faq-item.open .faq-q span{transform:rotate(45deg)}
.cta{padding:70px 0}
.cta-box{background:#e9f3ff;border:1px solid #cfe0f7;border-radius:24px;padding:40px 48px;display:flex;justify-content:space-between;gap:35px;align-items:center}
.cta-box h2{font-size:31px;line-height:1.3;margin:6px 0 10px}
.cta-box p{color:var(--muted);margin:0;max-width:650px}
.cta-actions{display:flex;gap:10px;white-space:nowrap}
footer{background:#fff;border-top:1px solid var(--line);padding:48px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.footer-brand{font-weight:800;color:var(--blue);font-size:22px}
.footer-desc{font-size:14px;color:var(--muted);max-width:285px;margin-top:12px}
.footer-grid h3{font-size:15px;margin:3px 0 13px}
.footer-grid a{display:block;color:#63718a;font-size:13px;margin:7px 0}
.footer-grid a:hover{color:var(--blue)}
.footer-bottom{border-top:1px solid var(--line);margin-top:34px;padding-top:18px;color:#8492a8;font-size:12px;display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{color:var(--blue)}
@media(max-width:1024px){
 .nav{gap:13px}.nav-links a{padding:8px 7px;font-size:13px}.search{width:135px}
 .banner-grid,.intro-grid,.info-grid,.faq-grid{gap:30px}
 .vertical-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
 .site-header,.nav{height:68px}.nav{justify-content:space-between}
 .nav-links{display:none;position:absolute;top:68px;left:20px;right:20px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .nav-links.show{display:flex}.nav-links a{padding:12px}
 .nav-actions{margin-left:auto}.nav-actions .search,.nav-actions .btn-outline{display:none}.menu-btn{display:block}
 .banner-grid,.intro-grid,.feature-strip,.info-grid,.faq-grid{grid-template-columns:1fr}
 .page-banner{padding-bottom:45px}.breadcrumb{margin-bottom:28px}
 .banner-art{min-height:270px}.section{padding:60px 0}
 .section-head{display:block}.section-head p{margin-top:12px}
 .feature-large{grid-template-columns:1fr}.feature-large img{min-height:210px;height:210px}
 .intro-photo,.intro-photo img{min-height:300px}.intro-copy{padding:28px}
 .cta-box{display:block;padding:32px 27px}.cta-actions{margin-top:22px;white-space:normal}
 .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:520px){
 .container{width:min(100% - 28px,1200px)}.brand{font-size:20px}
 .nav-actions{gap:6px}.page-banner h1{font-size:36px}.banner-copy{font-size:15px}
 .banner-actions,.cta-actions{flex-direction:column;align-items:stretch}.btn{width:100%}
 .section-head h2,.info-intro h2,.faq-intro h2{font-size:27px}
 .vertical-grid,.info-list{grid-template-columns:1fr}
 .vertical-card:nth-child(2),.vertical-card:nth-child(4){margin-top:0}
 .vertical-card img{height:265px}.timeline-item{grid-template-columns:45px 1fr;gap:12px}.timeline-dot{width:45px;height:45px;border-radius:14px}
 .timeline:before{left:22px}.footer-grid{grid-template-columns:1fr}
}
@media(max-width:375px){
 .container{width:calc(100% - 24px)}.brand-mark{width:25px:25px;height:18px}.nav-actions .btn-primary{padding:9px 12px;font-size:13px}
}