/* roulang page: index */
:root{
      --primary:#167C8C;
      --primary-2:#0F8A9D;
      --primary-soft:#E4F3F1;
      --primary-pale:#F0FAF8;
      --accent:#D99A2B;
      --accent-soft:#FFF3DC;
      --bg:#F6F8F5;
      --surface:#FFFFFF;
      --surface-2:#FBFCFA;
      --text:#1D2B2F;
      --muted:#657274;
      --muted-2:#879392;
      --border:#DDE5E1;
      --border-strong:#C6D8D4;
      --footer:#1D2B2F;
      --footer-text:#D7E1DD;
      --shadow:0 8px 24px rgba(29,43,47,.06);
      --shadow-hover:0 14px 36px rgba(29,43,47,.10);
      --radius-sm:12px;
      --radius:20px;
      --radius-lg:32px;
      --container:1200px;
      --focus:0 0 0 4px rgba(22,124,140,.18);
    }

    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      background:var(--bg);
      color:var(--text);
      line-height:1.78;
      font-size:16px;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{border:0;cursor:pointer}
    ::selection{background:var(--primary);color:#fff}

    .container{
      width:min(var(--container),calc(100% - 48px));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(251,252,250,.98);
      border-bottom:1px solid var(--border);
      box-shadow:0 4px 18px rgba(29,43,47,.04);
    }
    .topbar{
      min-height:74px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      padding:12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:44px;
      height:44px;
      border-radius:15px;
      background:linear-gradient(145deg,var(--primary),#47AEB3);
      color:#fff;
      display:grid;
      place-items:center;
      font-weight:800;
      font-size:22px;
      box-shadow:0 10px 22px rgba(22,124,140,.18);
      position:relative;
      overflow:hidden;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      width:32px;
      height:14px;
      border:2px solid rgba(255,255,255,.45);
      border-left:0;
      border-bottom:0;
      border-radius:0 20px 0 0;
      right:6px;
      bottom:8px;
      transform:rotate(-10deg);
    }
    .brand-text strong{
      display:block;
      font-size:19px;
      line-height:1.2;
      letter-spacing:.02em;
    }
    .brand-text span{
      display:block;
      color:var(--muted);
      font-size:13px;
      margin-top:2px;
    }
    .header-search{
      flex:1;
      max-width:460px;
      position:relative;
    }
    .header-search input{
      width:100%;
      height:48px;
      border:1px solid var(--border);
      border-radius:16px;
      background:#F8FAF7;
      color:var(--text);
      padding:0 44px 0 44px;
      outline:none;
      transition:.2s ease;
    }
    .header-search input:focus{
      border-color:var(--primary);
      box-shadow:var(--focus);
      background:#fff;
    }
    .search-icon{
      position:absolute;
      left:16px;
      top:50%;
      transform:translateY(-50%);
      color:var(--primary);
      font-size:18px;
    }
    .header-actions{
      display:flex;
      align-items:center;
      gap:12px;
    }

    .channelbar{
      background:#F3F7F3;
      border-top:1px solid rgba(221,229,225,.75);
    }
    .channel-scroll{
      display:flex;
      align-items:center;
      gap:10px;
      min-height:54px;
      overflow-x:auto;
      scrollbar-width:none;
      padding:8px 0;
    }
    .channel-scroll::-webkit-scrollbar{display:none}
    .nav-pill{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      white-space:nowrap;
      padding:9px 16px;
      border:1px solid transparent;
      border-radius:999px;
      color:#405054;
      font-size:15px;
      line-height:1;
      transition:.2s ease;
    }
    .nav-pill:hover,
    .nav-pill:focus{
      color:var(--primary);
      background:#fff;
      border-color:var(--border-strong);
      outline:none;
    }
    .nav-pill.active{
      background:var(--primary-soft);
      color:var(--primary);
      border-color:#B8DCD7;
      font-weight:700;
      box-shadow:inset 0 -2px 0 rgba(22,124,140,.16);
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:0 20px;
      border-radius:999px;
      font-weight:700;
      line-height:1;
      transition:.22s ease;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      background:var(--primary);
      color:#fff;
      box-shadow:0 10px 22px rgba(22,124,140,.18);
    }
    .btn-primary:hover,
    .btn-primary:focus{
      background:#116E7C;
      transform:translateY(-2px);
      box-shadow:0 14px 30px rgba(22,124,140,.24);
      outline:none;
    }
    .btn-accent{
      background:var(--accent);
      color:#221707;
      box-shadow:0 10px 22px rgba(217,154,43,.20);
    }
    .btn-accent:hover,
    .btn-accent:focus{
      background:#C98A1C;
      transform:translateY(-2px);
      outline:none;
    }
    .btn-secondary{
      background:#fff;
      color:var(--primary);
      border-color:#BBD8D4;
    }
    .btn-secondary:hover,
    .btn-secondary:focus{
      background:var(--primary-pale);
      transform:translateY(-2px);
      box-shadow:var(--shadow);
      outline:none;
    }

    main{overflow:hidden}
    .hero{
      position:relative;
      padding:86px 0 78px;
      background:
        radial-gradient(circle at 86% 12%,rgba(217,154,43,.14),transparent 28%),
        radial-gradient(circle at 20% 18%,rgba(22,124,140,.13),transparent 34%),
        linear-gradient(180deg,#FBFCFA 0%,var(--bg) 100%);
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(90deg,rgba(22,124,140,.06) 1px,transparent 1px),
        linear-gradient(0deg,rgba(22,124,140,.05) 1px,transparent 1px);
      background-size:54px 54px;
      mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 70%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);
      gap:52px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 13px;
      border:1px solid #B8DCD7;
      background:rgba(228,243,241,.82);
      color:var(--primary);
      border-radius:999px;
      font-size:14px;
      font-weight:700;
      margin-bottom:20px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(217,154,43,.16);
    }
    h1{
      font-size:clamp(32px,5vw,54px);
      line-height:1.16;
      letter-spacing:-.03em;
      margin-bottom:20px;
    }
    .hero-lead{
      color:var(--muted);
      font-size:18px;
      max-width:690px;
      line-height:1.85;
      margin-bottom:28px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-bottom:28px;
    }
    .hero-notes{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .note-chip{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:8px 12px;
      border-radius:999px;
      background:#fff;
      color:#526164;
      border:1px solid var(--border);
      font-size:14px;
    }
    .note-chip b{color:var(--primary)}
    .visual-panel{
      border-radius:var(--radius-lg);
      padding:16px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 18px 42px rgba(29,43,47,.10);
      position:relative;
    }
    .visual-image{
      height:220px;
      border-radius:24px;
      overflow:hidden;
      position:relative;
      background:#DCEBE8;
    }
    .visual-image img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .visual-image::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(29,43,47,.08),rgba(29,43,47,.46));
    }
    .image-caption{
      position:absolute;
      left:18px;
      right:18px;
      bottom:16px;
      color:#fff;
      z-index:2;
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:14px;
    }
    .image-caption strong{font-size:18px}
    .image-caption span{font-size:13px;color:rgba(255,255,255,.82)}
    .entry-dashboard{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      margin-top:14px;
    }
    .entry-item{
      padding:15px;
      border-radius:18px;
      background:var(--surface-2);
      border:1px solid var(--border);
      transition:.22s ease;
    }
    .entry-item:hover{
      transform:translateY(-3px);
      border-color:#B8DCD7;
      box-shadow:var(--shadow);
    }
    .entry-item .mini-icon{
      width:34px;
      height:34px;
      border-radius:12px;
      display:grid;
      place-items:center;
      background:var(--primary-soft);
      color:var(--primary);
      margin-bottom:10px;
      font-weight:800;
    }
    .entry-item strong{display:block;font-size:15px;margin-bottom:4px}
    .entry-item span{display:block;color:var(--muted);font-size:13px;line-height:1.55}

    .section{
      padding:86px 0;
    }
    .section.compact{padding:72px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-title{
      max-width:760px;
    }
    .section-kicker{
      color:var(--primary);
      font-weight:800;
      letter-spacing:.04em;
      font-size:14px;
      margin-bottom:8px;
    }
    h2{
      font-size:clamp(26px,3.5vw,38px);
      line-height:1.28;
      letter-spacing:-.02em;
      margin-bottom:12px;
    }
    .section-title p{
      color:var(--muted);
      max-width:760px;
      line-height:1.85;
    }

    .pain-layout{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:22px;
      align-items:start;
    }
    .pain-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:24px;
      padding:24px;
      box-shadow:var(--shadow);
      transition:.22s ease;
      position:relative;
      overflow:hidden;
    }
    .pain-card:nth-child(even){margin-top:34px}
    .pain-card:hover{
      transform:translateY(-4px);
      border-color:#B8DCD7;
      box-shadow:var(--shadow-hover);
    }
    .pain-card::after{
      content:"";
      position:absolute;
      right:-38px;
      top:-38px;
      width:116px;
      height:116px;
      border-radius:50%;
      background:rgba(22,124,140,.08);
    }
    .pain-no{
      color:rgba(22,124,140,.26);
      font-size:42px;
      line-height:1;
      font-weight:900;
      margin-bottom:16px;
    }
    h3{
      font-size:21px;
      line-height:1.35;
      margin-bottom:10px;
    }
    .pain-card p,
    .solution-card p,
    .channel-step p,
    .feedback-card p,
    .faq-body,
    .article-teaser p{
      color:var(--muted);
      line-height:1.75;
    }

    .solution-section{
      background:#EEF5F2;
      position:relative;
    }
    .solution-grid{
      display:grid;
      grid-template-columns:.42fr .58fr;
      gap:34px;
      align-items:start;
    }
    .sticky-note{
      position:sticky;
      top:150px;
      background:var(--footer);
      color:#fff;
      border-radius:28px;
      padding:30px;
      overflow:hidden;
    }
    .sticky-note::before{
      content:"";
      position:absolute;
      width:220px;
      height:220px;
      border-radius:50%;
      border:1px solid rgba(255,255,255,.16);
      right:-88px;
      bottom:-88px;
    }
    .sticky-note .section-kicker{color:#9CE0D8}
    .sticky-note p{color:#D7E1DD;margin-top:14px}
    .sticky-meter{
      margin-top:24px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.14);
      display:grid;
      gap:13px;
    }
    .meter-row{
      display:grid;
      grid-template-columns:88px 1fr;
      gap:12px;
      align-items:center;
      color:#E9F1EF;
      font-size:14px;
    }
    .meter-line{
      height:8px;
      border-radius:999px;
      background:rgba(255,255,255,.13);
      overflow:hidden;
    }
    .meter-line span{
      display:block;
      height:100%;
      border-radius:999px;
      background:var(--accent);
    }
    .solution-list{
      display:grid;
      gap:16px;
      position:relative;
    }
    .solution-list::before{
      content:"";
      position:absolute;
      left:27px;
      top:20px;
      bottom:20px;
      width:2px;
      background:linear-gradient(var(--primary),rgba(22,124,140,.08));
    }
    .solution-card{
      position:relative;
      display:grid;
      grid-template-columns:56px 1fr auto;
      gap:18px;
      align-items:start;
      padding:22px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:var(--shadow);
      transition:.22s ease;
    }
    .solution-card:hover{
      transform:translateX(4px);
      border-color:#B8DCD7;
      box-shadow:var(--shadow-hover);
    }
    .solution-icon{
      width:56px;
      height:56px;
      border-radius:18px;
      background:var(--primary-soft);
      color:var(--primary);
      display:grid;
      place-items:center;
      font-weight:900;
      z-index:1;
    }
    .light-link{
      color:var(--primary);
      font-weight:800;
      font-size:14px;
      align-self:center;
      white-space:nowrap;
    }
    .light-link:hover{color:#0C6572}

    .stats-band{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
      background:#fff;
      border:1px solid var(--border);
      border-radius:28px;
      padding:16px;
      box-shadow:var(--shadow);
    }
    .stat{
      padding:22px 18px;
      border-radius:20px;
      background:linear-gradient(180deg,#FBFCFA,#F4F8F6);
      border:1px solid var(--border);
    }
    .stat b{
      display:block;
      color:var(--primary);
      font-size:30px;
      line-height:1.1;
      margin-bottom:8px;
    }
    .stat span{
      color:var(--text);
      font-weight:800;
      display:block;
      margin-bottom:6px;
    }
    .stat p{
      color:var(--muted);
      font-size:14px;
      line-height:1.65;
    }

    .channel-path{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:24px;
      align-items:stretch;
    }
    .path-feature{
      position:relative;
      min-height:410px;
      border-radius:30px;
      overflow:hidden;
      border:1px solid var(--border);
      box-shadow:var(--shadow);
      background:#203234;
    }
    .path-feature img{
      width:100%;
      height:100%;
      object-fit:cover;
      position:absolute;
      inset:0;
    }
    .path-feature::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg,rgba(29,43,47,.82),rgba(29,43,47,.30));
    }
    .path-copy{
      position:relative;
      z-index:2;
      color:#fff;
      padding:34px;
      height:100%;
      display:flex;
      flex-direction:column;
      justify-content:flex-end;
      max-width:520px;
    }
    .path-copy p{color:#D7E1DD;margin-top:12px}
    .path-steps{
      display:grid;
      gap:14px;
    }
    .channel-step{
      display:grid;
      grid-template-columns:72px 1fr;
      gap:16px;
      padding:20px;
      border:1px solid var(--border);
      background:#fff;
      border-radius:22px;
      box-shadow:var(--shadow);
      transition:.22s ease;
    }
    .channel-step:hover{
      transform:translateY(-3px);
      border-color:#B8DCD7;
      box-shadow:var(--shadow-hover);
    }
    .step-index{
      width:58px;
      height:58px;
      border-radius:18px;
      background:var(--accent-soft);
      color:#9C6511;
      display:grid;
      place-items:center;
      font-weight:900;
    }

    .insight-wrap{
      background:#1D2B2F;
      color:#fff;
      border-radius:34px;
      padding:34px;
      position:relative;
      overflow:hidden;
    }
    .insight-wrap::before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px),
        linear-gradient(0deg,rgba(255,255,255,.05) 1px,transparent 1px);
      background-size:42px 42px;
      opacity:.35;
    }
    .insight-content{position:relative;z-index:1}
    .insight-wrap .section-kicker{color:#9CE0D8}
    .insight-wrap h2{max-width:820px}
    .insight-row{
      margin-top:24px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
    }
    .insight-card{
      padding:22px;
      border-radius:22px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.14);
    }
    .insight-card b{
      display:block;
      font-size:28px;
      color:#FFD792;
      margin-bottom:8px;
    }
    .insight-card p{color:#D7E1DD;font-size:15px}

    .feedback-lane{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .feedback-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:24px;
      padding:24px;
      box-shadow:var(--shadow);
      transition:.22s ease;
    }
    .feedback-card:nth-child(2){transform:translateY(24px)}
    .feedback-card:nth-child(3){transform:translateY(-6px)}
    .feedback-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:#B8DCD7;
    }
    .feedback-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      margin-bottom:14px;
    }
    .avatar-label{
      display:flex;
      align-items:center;
      gap:10px;
      font-weight:800;
    }
    .avatar-dot{
      width:36px;
      height:36px;
      border-radius:50%;
      background:var(--primary-soft);
      color:var(--primary);
      display:grid;
      place-items:center;
    }
    .rating{
      color:var(--accent);
      letter-spacing:2px;
      font-size:14px;
    }

    .article-strip{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .article-teaser{
      border:1px solid var(--border);
      background:#fff;
      border-radius:24px;
      overflow:hidden;
      box-shadow:var(--shadow);
      transition:.22s ease;
    }
    .article-teaser:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow-hover);
      border-color:#B8DCD7;
    }
    .article-teaser img{
      width:100%;
      height:168px;
      object-fit:cover;
    }
    .article-body{padding:20px}
    .badge{
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary);
      font-size:13px;
      font-weight:800;
      margin-bottom:10px;
    }
    .article-body h3{font-size:19px}

    .faq-grid{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:30px;
      align-items:start;
    }
    .faq-aside{
      background:var(--accent-soft);
      border:1px solid #F0D39D;
      border-radius:28px;
      padding:28px;
    }
    .faq-aside p{color:#6B5A3C;margin-top:12px}
    .faq-list{
      display:grid;
      gap:12px;
    }
    .faq-item{
      background:#fff;
      border:1px solid var(--border);
      border-radius:18px;
      overflow:hidden;
      box-shadow:0 6px 18px rgba(29,43,47,.04);
    }
    .faq-q{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 20px;
      font-weight:800;
      color:var(--text);
    }
    .faq-q span:first-child{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .faq-mark{
      width:28px;
      height:28px;
      border-radius:10px;
      background:var(--primary-soft);
      color:var(--primary);
      display:grid;
      place-items:center;
      font-size:13px;
      flex:0 0 auto;
    }
    .faq-plus{
      color:var(--primary);
      font-size:20px;
      line-height:1;
    }
    .faq-body{
      padding:0 20px 18px 58px;
      font-size:15px;
    }

    .cta{
      padding:0 0 86px;
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      border-radius:34px;
      background:
        radial-gradient(circle at 82% 24%,rgba(255,215,146,.36),transparent 32%),
        linear-gradient(135deg,#E7F5F2,#FFFFFF 62%);
      border:1px solid #B8DCD7;
      padding:42px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
      box-shadow:var(--shadow);
    }
    .cta-panel::before{
      content:"";
      position:absolute;
      width:360px;
      height:160px;
      right:-90px;
      bottom:-60px;
      border:2px solid rgba(22,124,140,.18);
      border-radius:50%;
      transform:rotate(-12deg);
    }
    .cta-copy{position:relative;z-index:1}
    .cta-copy h2{margin-bottom:10px}
    .cta-copy p{color:var(--muted);max-width:760px}
    .cta-actions{
      position:relative;
      z-index:1;
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }

    .site-footer{
      background:var(--footer);
      color:var(--footer-text);
      padding:56px 0 24px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .8fr .95fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:16px;
    }
    .footer-brand .brand-mark{box-shadow:none}
    .footer-brand strong{font-size:20px;color:#fff}
    .footer-col h3{
      font-size:17px;
      color:#fff;
      margin-bottom:14px;
    }
    .footer-col p,
    .footer-col li{
      color:#C9D5D1;
      font-size:15px;
      line-height:1.8;
    }
    .footer-links{
      list-style:none;
      display:grid;
      gap:8px;
    }
    .footer-links a{
      color:#C9D5D1;
      transition:.2s ease;
    }
    .footer-links a:hover,
    .footer-links a:focus{
      color:#FFD792;
      outline:none;
    }
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:16px;
      padding-top:22px;
      color:#AEBDB8;
      font-size:14px;
      flex-wrap:wrap;
    }

    @media (max-width:1024px){
      .container{width:min(100% - 36px,var(--container))}
      .hero-grid,
      .solution-grid,
      .channel-path,
      .faq-grid{
        grid-template-columns:1fr;
      }
      .sticky-note{position:relative;top:auto}
      .stats-band{grid-template-columns:repeat(2,1fr)}
      .article-strip{grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1fr 1fr}
      .header-search{max-width:360px}
    }

    @media (max-width:768px){
      body{font-size:15px}
      .topbar{
        min-height:auto;
        display:grid;
        grid-template-columns:1fr auto;
        gap:12px;
      }
      .brand-text span{display:none}
      .header-search{
        grid-column:1 / -1;
        order:3;
        max-width:none;
        width:100%;
      }
      .header-search input{height:44px}
      .header-actions .btn{min-height:42px;padding:0 15px}
      .channel-scroll{padding:9px 0}
      .hero{padding:58px 0 56px}
      .hero-grid{gap:30px}
      .hero-lead{font-size:16px}
      .section{padding:62px 0}
      .section.compact{padding:56px 0}
      .section-head{display:block}
      .section-head .btn{margin-top:16px}
      .pain-layout,
      .feedback-lane,
      .insight-row{
        grid-template-columns:1fr;
      }
      .pain-card:nth-child(even),
      .feedback-card:nth-child(2),
      .feedback-card:nth-child(3){
        margin-top:0;
        transform:none;
      }
      .solution-card{
        grid-template-columns:48px 1fr;
      }
      .solution-card .light-link{
        grid-column:2;
        align-self:start;
      }
      .solution-icon{width:48px;height:48px}
      .entry-dashboard{grid-template-columns:1fr}
      .visual-image{height:200px}
      .article-strip{grid-template-columns:1fr}
      .cta-panel{
        grid-template-columns:1fr;
        padding:30px 24px;
      }
      .cta-actions{justify-content:flex-start}
      .footer-grid{grid-template-columns:1fr}
    }

    @media (max-width:520px){
      .container{width:calc(100% - 28px)}
      .brand-mark{width:40px;height:40px;border-radius:14px}
      .brand-text strong{font-size:17px}
      .header-actions .btn span.long{display:none}
      .hero-actions,
      .cta-actions{
        flex-direction:column;
      }
      .hero-actions .btn,
      .cta-actions .btn{
        width:100%;
      }
      .stats-band{grid-template-columns:1fr}
      .channel-step{grid-template-columns:1fr}
      .step-index{width:52px;height:52px}
      .faq-body{padding-left:20px}
      .image-caption{
        display:block;
      }
      .image-caption span{display:block;margin-top:4px}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:8px}
    }

/* roulang page: category1 */
:root{
      --primary:#167C8C;
      --primary-strong:#0F6E7C;
      --primary-soft:#E4F3F1;
      --accent:#D99A2B;
      --accent-soft:#FFF2D9;
      --bg:#F6F8F5;
      --bg-warm:#F7F7F1;
      --card:#FFFFFF;
      --card-soft:#FBFCFA;
      --text:#1D2B2F;
      --muted:#657274;
      --light:#D7E1DD;
      --border:#DDE5E1;
      --border-strong:#C9D8D2;
      --footer:#1D2B2F;
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:28px;
      --radius-xl:36px;
      --shadow:0 8px 24px rgba(29,43,47,.06);
      --shadow-hover:0 14px 36px rgba(29,43,47,.10);
      --container:1200px;
      --ease:all .22s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 6% 8%, rgba(22,124,140,.08), transparent 28%),
        radial-gradient(circle at 92% 20%, rgba(217,154,43,.10), transparent 22%),
        var(--bg);
      line-height:1.75;
      font-size:16px;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    ::selection{background:var(--primary);color:#fff}
    .container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(251,252,250,.96);
      border-bottom:1px solid var(--border);
      box-shadow:0 6px 22px rgba(29,43,47,.04);
    }
    .topbar{
      min-height:74px;
      display:flex;
      align-items:center;
      gap:24px;
      justify-content:space-between;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:250px;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:linear-gradient(145deg,var(--primary),#2EA1A4);
      color:#fff;
      font-weight:800;
      box-shadow:0 10px 20px rgba(22,124,140,.18);
      flex:0 0 auto;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.25}
    .brand-text strong{font-size:18px;letter-spacing:.2px}
    .brand-text span{font-size:12px;color:var(--muted);margin-top:3px}
    .header-search{
      flex:1;
      max-width:460px;
      height:46px;
      border:1px solid var(--border);
      background:#fff;
      border-radius:16px;
      display:flex;
      align-items:center;
      padding:0 14px;
      transition:var(--ease);
    }
    .header-search:focus-within{
      border-color:var(--primary);
      box-shadow:0 0 0 4px rgba(22,124,140,.12);
    }
    .search-icon{color:var(--primary);font-weight:700;margin-right:8px;font-size:20px}
    .header-search input{
      width:100%;
      border:0;
      outline:0;
      background:transparent;
      color:var(--text);
    }
    .header-search input::placeholder{color:#879391}
    .header-actions{display:flex;align-items:center;gap:12px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:44px;
      padding:11px 18px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      cursor:pointer;
      transition:var(--ease);
      white-space:nowrap;
    }
    .btn-primary{
      background:var(--primary);
      color:#fff;
      box-shadow:0 10px 22px rgba(22,124,140,.20);
    }
    .btn-primary:hover,.btn-primary:focus{
      background:var(--primary-strong);
      transform:translateY(-2px);
      box-shadow:0 14px 30px rgba(22,124,140,.26);
    }
    .btn-secondary{
      background:#fff;
      color:var(--primary);
      border-color:rgba(22,124,140,.28);
    }
    .btn-secondary:hover,.btn-secondary:focus{
      background:var(--primary-soft);
      border-color:var(--primary);
      transform:translateY(-2px);
    }
    .btn-accent{
      background:var(--accent);
      color:#fff;
      box-shadow:0 10px 22px rgba(217,154,43,.20);
    }
    .btn-accent:hover,.btn-accent:focus{
      filter:brightness(.96);
      transform:translateY(-2px);
      box-shadow:0 14px 30px rgba(217,154,43,.28);
    }
    .channelbar{
      background:var(--bg-warm);
      border-top:1px solid rgba(221,229,225,.72);
    }
    .channel-scroll{
      display:flex;
      align-items:center;
      gap:10px;
      min-height:54px;
      overflow-x:auto;
      scrollbar-width:none;
      padding-top:8px;
      padding-bottom:8px;
    }
    .channel-scroll::-webkit-scrollbar{display:none}
    .nav-pill{
      display:inline-flex;
      align-items:center;
      height:36px;
      padding:0 16px;
      border-radius:999px;
      color:var(--muted);
      border:1px solid transparent;
      font-weight:650;
      flex:0 0 auto;
      transition:var(--ease);
      position:relative;
    }
    .nav-pill:hover{
      color:var(--primary);
      background:#fff;
      border-color:var(--border);
    }
    .nav-pill.active{
      color:var(--primary);
      background:var(--primary-soft);
      border-color:rgba(22,124,140,.28);
    }
    .nav-pill.active::after{
      content:"";
      position:absolute;
      left:18px;
      right:18px;
      bottom:-9px;
      height:3px;
      border-radius:6px;
      background:var(--primary);
    }
    main{overflow:hidden}
    .section{
      padding:78px 0;
    }
    .section-tight{padding:54px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary);
      border:1px solid rgba(22,124,140,.18);
      font-size:14px;
      font-weight:700;
    }
    .eyebrow::before{
      content:"";
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--accent);
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      margin:18px 0 18px;
      font-size:48px;
      line-height:1.18;
      letter-spacing:-.8px;
    }
    h2{
      font-size:34px;
      line-height:1.28;
      margin-bottom:14px;
      letter-spacing:-.3px;
    }
    h3{
      font-size:21px;
      line-height:1.35;
      margin-bottom:8px;
    }
    p{color:var(--muted);margin-bottom:0}
    .lead{
      font-size:17px;
      line-height:1.85;
      max-width:760px;
    }
    .hero-category{
      padding:58px 0 46px;
      background:
        linear-gradient(120deg, rgba(246,248,245,.96), rgba(246,248,245,.80)),
        url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      border-bottom:1px solid var(--border);
      position:relative;
    }
    .hero-category::after{
      content:"";
      position:absolute;
      inset:auto 0 0;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(22,124,140,.35), transparent);
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      color:var(--muted);
      font-size:14px;
      margin-bottom:18px;
    }
    .breadcrumb a{color:var(--primary);font-weight:650}
    .hero-panel{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:34px;
      align-items:end;
    }
    .hero-copy{
      background:rgba(255,255,255,.74);
      border:1px solid rgba(221,229,225,.82);
      border-radius:var(--radius-xl);
      padding:34px;
      box-shadow:var(--shadow);
    }
    .hero-tools{
      background:#fff;
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      padding:22px;
      box-shadow:var(--shadow);
    }
    .filter-tabs{
      display:flex;
      gap:10px;
      overflow-x:auto;
      scrollbar-width:none;
      padding:4px 0 16px;
      margin-top:24px;
    }
    .filter-tabs::-webkit-scrollbar{display:none}
    .filter-tab{
      flex:0 0 auto;
      padding:8px 14px;
      border-radius:999px;
      border:1px solid var(--border);
      background:#fff;
      color:var(--muted);
      font-weight:650;
      transition:var(--ease);
    }
    .filter-tab:hover,.filter-tab.active{
      color:var(--primary);
      background:var(--primary-soft);
      border-color:rgba(22,124,140,.30);
    }
    .search-note{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px;
      border-radius:18px;
      background:var(--accent-soft);
      border:1px solid rgba(217,154,43,.28);
      color:#7A5A1E;
      font-size:14px;
      line-height:1.65;
    }
    .mini-metrics{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      margin-top:16px;
    }
    .metric-mini{
      padding:14px;
      border-radius:18px;
      background:var(--card-soft);
      border:1px solid var(--border);
    }
    .metric-mini strong{
      display:block;
      color:var(--primary);
      font-size:22px;
      line-height:1.2;
      margin-bottom:4px;
    }
    .metric-mini span{font-size:13px;color:var(--muted)}
    .portal-layout{
      display:grid;
      grid-template-columns:minmax(0, 1fr) 360px;
      gap:32px;
      align-items:start;
    }
    .content-list{
      display:flex;
      flex-direction:column;
      gap:18px;
    }
    .featured-card{
      display:grid;
      grid-template-columns:280px minmax(0,1fr);
      gap:24px;
      padding:18px;
      border-radius:var(--radius-lg);
      background:#fff;
      border:1px solid rgba(22,124,140,.20);
      box-shadow:var(--shadow);
      transition:var(--ease);
    }
    .featured-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(22,124,140,.38);
    }
    .featured-media{
      position:relative;
      min-height:230px;
      border-radius:22px;
      overflow:hidden;
      background:var(--primary-soft);
    }
    .featured-media img{
      width:100%;
      height:100%;
      object-fit:cover;
      position:absolute;
      inset:0;
    }
    .featured-media::after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, transparent 40%, rgba(29,43,47,.58));
    }
    .media-caption{
      position:absolute;
      left:14px;
      right:14px;
      bottom:14px;
      color:#fff;
      font-size:13px;
      z-index:2;
    }
    .article-card{
      display:grid;
      grid-template-columns:120px minmax(0,1fr);
      gap:18px;
      padding:18px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--border);
      box-shadow:0 6px 18px rgba(29,43,47,.04);
      transition:var(--ease);
    }
    .article-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:rgba(22,124,140,.28);
    }
    .article-icon{
      min-height:112px;
      border-radius:20px;
      overflow:hidden;
      background:linear-gradient(145deg,var(--primary-soft),#fff);
      border:1px solid rgba(22,124,140,.16);
      display:flex;
      align-items:center;
      justify-content:center;
      color:var(--primary);
      font-size:32px;
      font-weight:800;
    }
    .article-icon img{
      width:100%;
      height:100%;
      object-fit:cover;
    }
    .card-meta{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      margin-bottom:8px;
      color:var(--muted);
      font-size:13px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      padding:4px 10px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary);
      font-size:13px;
      font-weight:700;
      border:1px solid rgba(22,124,140,.18);
    }
    .tag.gold{
      background:var(--accent-soft);
      color:#936716;
      border-color:rgba(217,154,43,.25);
    }
    .article-card h3,.featured-card h3{margin-bottom:8px}
    .article-card p,.featured-card p{line-height:1.75}
    .read-more{
      display:inline-flex;
      align-items:center;
      gap:6px;
      margin-top:14px;
      color:var(--primary);
      font-weight:750;
      transition:var(--ease);
    }
    .read-more:hover{gap:10px;color:var(--primary-strong)}
    .sidebar{
      position:sticky;
      top:150px;
      display:flex;
      flex-direction:column;
      gap:18px;
    }
    .side-card{
      background:#fff;
      border:1px solid var(--border);
      border-radius:24px;
      padding:22px;
      box-shadow:var(--shadow);
    }
    .side-card h3{
      display:flex;
      align-items:center;
      gap:8px;
      margin-bottom:14px;
    }
    .side-card h3::before{
      content:"";
      width:8px;
      height:22px;
      border-radius:6px;
      background:var(--primary);
    }
    .quick-entry{
      background:
        linear-gradient(135deg, rgba(22,124,140,.96), rgba(15,110,124,.92)),
        url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat;
      color:#fff;
      border:0;
      overflow:hidden;
      position:relative;
    }
    .quick-entry::after{
      content:"";
      position:absolute;
      width:140px;
      height:140px;
      right:-42px;
      bottom:-42px;
      border:1px solid rgba(255,255,255,.24);
      border-radius:50%;
    }
    .quick-entry h3,.quick-entry p{color:#fff;position:relative;z-index:1}
    .quick-entry p{opacity:.88}
    .quick-entry .btn{margin-top:18px;position:relative;z-index:1}
    .side-list{
      list-style:none;
      padding:0;
      margin:0;
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .side-list li{
      padding:12px 0;
      border-bottom:1px dashed var(--border);
      color:var(--muted);
      line-height:1.65;
    }
    .side-list li:last-child{border-bottom:0;padding-bottom:0}
    .side-list a{
      color:var(--text);
      font-weight:650;
      transition:var(--ease);
    }
    .side-list a:hover{color:var(--primary)}
    .contact-box{
      display:grid;
      gap:12px;
    }
    .field{
      width:100%;
      min-height:48px;
      border:1px solid var(--border);
      border-radius:14px;
      background:var(--card-soft);
      padding:10px 13px;
      outline:0;
      transition:var(--ease);
      color:var(--text);
    }
    textarea.field{min-height:108px;resize:vertical}
    .field:focus{
      border-color:var(--primary);
      box-shadow:0 0 0 4px rgba(22,124,140,.12);
      background:#fff;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-head .lead{max-width:650px}
    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    .faq-item{
      background:#fff;
      border:1px solid var(--border);
      border-radius:22px;
      padding:18px 18px 18px 20px;
      box-shadow:0 6px 18px rgba(29,43,47,.04);
      transition:var(--ease);
    }
    .faq-item:hover{
      border-color:rgba(22,124,140,.30);
      transform:translateY(-2px);
      box-shadow:var(--shadow);
    }
    .faq-q{
      display:flex;
      justify-content:space-between;
      gap:14px;
      align-items:flex-start;
      color:var(--text);
      font-weight:800;
      margin-bottom:8px;
    }
    .faq-q span:first-child{
      display:inline-flex;
      align-items:center;
      gap:8px;
    }
    .faq-q span:first-child::before{
      content:"Q";
      width:26px;
      height:26px;
      border-radius:9px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:var(--primary-soft);
      color:var(--primary);
      font-size:13px;
      flex:0 0 auto;
    }
    .faq-toggle{
      color:var(--primary);
      font-weight:900;
      line-height:1.2;
    }
    .faq-item p{font-size:15px;line-height:1.75;padding-left:34px}
    .cta-wrap{
      background:
        linear-gradient(135deg, rgba(228,243,241,.92), rgba(255,242,217,.78)),
        radial-gradient(circle at 88% 20%, rgba(22,124,140,.16), transparent 28%);
      border:1px solid rgba(22,124,140,.18);
      border-radius:36px;
      padding:42px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:30px;
      align-items:center;
      position:relative;
      overflow:hidden;
      box-shadow:var(--shadow);
    }
    .cta-wrap::before{
      content:"";
      position:absolute;
      left:-80px;
      top:36px;
      width:220px;
      height:220px;
      border-radius:50%;
      border:1px solid rgba(22,124,140,.16);
    }
    .cta-wrap > *{position:relative;z-index:1}
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .site-footer{
      background:var(--footer);
      color:var(--light);
      padding:58px 0 26px;
      margin-top:20px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .8fr 1fr;
      gap:36px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(215,225,221,.16);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
      color:#fff;
    }
    .footer-col p{
      color:rgba(215,225,221,.78);
      line-height:1.8;
      margin-bottom:8px;
    }
    .footer-col h3{
      color:#fff;
      font-size:18px;
      margin-bottom:14px;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:rgba(215,225,221,.82);
      transition:var(--ease);
    }
    .footer-links a:hover{
      color:var(--accent);
      padding-left:3px;
    }
    .footer-bottom{
      padding-top:22px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      color:rgba(215,225,221,.68);
      font-size:14px;
    }
    @media (max-width:1024px){
      .container{width:min(100% - 32px,var(--container))}
      .hero-panel,.portal-layout{grid-template-columns:1fr}
      .sidebar{position:static}
      .featured-card{grid-template-columns:240px 1fr}
      h1{font-size:40px}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .topbar{
        min-height:auto;
        padding:14px 0;
        display:grid;
        grid-template-columns:1fr auto;
        gap:12px;
      }
      .brand{min-width:0}
      .brand-text span{display:none}
      .header-search{
        grid-column:1 / -1;
        order:3;
        max-width:none;
        height:44px;
      }
      .header-actions .long{display:none}
      .channel-scroll{width:100%;padding-left:0;padding-right:0}
      .hero-category{padding:38px 0}
      .hero-copy,.hero-tools{padding:22px;border-radius:26px}
      h1{font-size:34px;letter-spacing:-.4px}
      h2{font-size:27px}
      .section{padding:56px 0}
      .section-head{display:block}
      .section-head .lead{margin-top:8px}
      .featured-card,.article-card{grid-template-columns:1fr}
      .featured-media{min-height:210px}
      .article-icon{min-height:150px}
      .faq-grid,.footer-grid{grid-template-columns:1fr}
      .cta-wrap{grid-template-columns:1fr;padding:28px;border-radius:28px}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:520px){
      .container{width:min(100% - 24px,var(--container))}
      body{font-size:15px}
      .brand-mark{width:38px;height:38px;border-radius:12px}
      .brand-text strong{font-size:16px}
      .btn{width:100%;padding-left:14px;padding-right:14px}
      .header-actions .btn{width:auto}
      .hero-copy,.side-card,.article-card,.featured-card{padding:16px}
      h1{font-size:30px}
      .lead{font-size:15.5px}
      .filter-tabs{margin-top:18px}
      .mini-metrics{grid-template-columns:1fr}
      .cta-actions{display:grid;grid-template-columns:1fr;width:100%}
      .footer-bottom{display:grid}
    }