/* roulang page: index */
:root{
      --primary:#2563EB;
      --primary-dark:#1D4ED8;
      --primary-soft:#EFF6FF;
      --secondary:#06B6D4;
      --secondary-soft:#ECFEFF;
      --accent:#F59E0B;
      --accent-soft:#FFF7ED;
      --bg:#F7FAFF;
      --bg-2:#F5F7FB;
      --surface:#FFFFFF;
      --text:#1F2937;
      --muted:#64748B;
      --weak:#94A3B8;
      --border:#E2E8F0;
      --border-soft:rgba(226,232,240,.86);
      --shadow:0 16px 40px rgba(15,23,42,.08);
      --shadow-lg:0 24px 60px rgba(15,23,42,.12);
      --radius-sm:12px;
      --radius:18px;
      --radius-lg:26px;
      --radius-xl:34px;
      --container:1220px;
      --transition:.22s ease;
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font);
      color:var(--text);
      background:linear-gradient(180deg,#F7FAFF 0%,#FFFFFF 34%,#F5F7FB 100%);
      line-height:1.78;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color var(--transition),background var(--transition),border-color var(--transition),transform var(--transition)}
    a:hover{color:var(--primary)}
    img{max-width:100%;height:auto;display:block}
    button,input{font-family:inherit}
    button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{
      outline:3px solid rgba(37,99,235,.22);
      outline-offset:3px;
      border-radius:12px;
    }
    .site-container{
      width:min(100% - 48px,var(--container));
      margin-inline:auto;
    }
    .section{
      padding:86px 0;
      position:relative;
    }
    .section.compact{padding:64px 0}
    .section-head{
      max-width:780px;
      margin-bottom:34px;
    }
    .section-head.center{
      text-align:center;
      margin-inline:auto;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(37,99,235,.16);
      border-radius:999px;
      background:rgba(239,246,255,.92);
      color:var(--primary);
      font-size:13px;
      font-weight:700;
      line-height:1.3;
      margin-bottom:14px;
    }
    .eyebrow::before{
      content:"";
      width:8px;height:8px;border-radius:999px;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 0 0 5px rgba(37,99,235,.08);
    }
    h1,h2,h3,h4,p{margin-top:0}
    h1{
      font-size:clamp(32px,5vw,54px);
      line-height:1.14;
      letter-spacing:-.02em;
      font-weight:800;
      margin-bottom:22px;
    }
    h2{
      font-size:clamp(27px,3.4vw,40px);
      line-height:1.25;
      letter-spacing:-.015em;
      font-weight:800;
      margin-bottom:14px;
    }
    h3{
      font-size:22px;
      line-height:1.35;
      font-weight:760;
      margin-bottom:10px;
    }
    .lead{
      color:var(--muted);
      font-size:18px;
      line-height:1.9;
      margin-bottom:28px;
    }
    .subtext{
      color:var(--muted);
      font-size:16px;
      max-width:720px;
    }
    .button-group-custom{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      align-items:center;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 21px;
      border-radius:999px;
      font-weight:760;
      font-size:15px;
      border:1px solid transparent;
      cursor:pointer;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition);
      line-height:1.2;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),#2F6BFF);
      box-shadow:0 12px 28px rgba(37,99,235,.25);
    }
    .btn-primary:hover{
      color:#fff;
      transform:translateY(-2px);
      background:linear-gradient(135deg,var(--primary-dark),var(--primary));
      box-shadow:0 18px 38px rgba(37,99,235,.32);
    }
    .btn-secondary{
      color:var(--primary);
      background:#fff;
      border-color:rgba(37,99,235,.18);
      box-shadow:0 10px 24px rgba(15,23,42,.05);
    }
    .btn-secondary:hover{
      background:var(--primary-soft);
      border-color:rgba(37,99,235,.38);
      transform:translateY(-2px);
    }
    .text-link{
      display:inline-flex;
      gap:7px;
      align-items:center;
      color:var(--primary);
      font-weight:760;
    }
    .text-link span{transition:transform var(--transition)}
    .text-link:hover span{transform:translateX(4px)}
    .portal-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.94);
      backdrop-filter:saturate(140%) blur(12px);
      border-bottom:1px solid rgba(226,232,240,.82);
      box-shadow:0 10px 30px rgba(15,23,42,.045);
    }
    .brand-row{
      min-height:48px;
      border-bottom:1px solid rgba(226,232,240,.72);
    }
    .brand-row-inner,.nav-row-inner{
      width:min(100% - 48px,var(--container));
      margin-inline:auto;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand-row-inner{min-height:48px}
    .brand-logo{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
    }
    .logo-mark{
      width:40px;height:40px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      color:#fff;
      font-weight:900;
      letter-spacing:-.04em;
      box-shadow:0 14px 28px rgba(37,99,235,.22);
      flex:0 0 auto;
    }
    .logo-text{
      display:flex;
      flex-direction:column;
      line-height:1.2;
      min-width:0;
    }
    .logo-title{
      font-size:18px;
      font-weight:820;
      color:var(--text);
      white-space:nowrap;
    }
    .logo-subtitle{
      font-size:12px;
      color:var(--muted);
      white-space:nowrap;
    }
    .brand-actions{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:13px;
      white-space:nowrap;
    }
    .brand-actions a{
      padding:6px 10px;
      border-radius:999px;
    }
    .brand-actions a:hover{
      background:var(--primary-soft);
      color:var(--primary);
    }
    .mobile-toggle{
      display:none;
      width:42px;
      height:42px;
      border:1px solid var(--border);
      border-radius:14px;
      background:#fff;
      color:var(--primary);
      font-size:22px;
      align-items:center;
      justify-content:center;
      cursor:pointer;
    }
    .nav-row-inner{
      min-height:62px;
    }
    .channel-nav{
      display:flex;
      align-items:center;
      gap:10px;
      flex:1 1 auto;
      min-width:0;
    }
    .channel-nav a{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:10px 15px;
      border-radius:999px;
      color:#334155;
      font-size:15px;
      font-weight:740;
      white-space:nowrap;
    }
    .channel-nav a:hover{
      color:var(--primary);
      background:var(--primary-soft);
    }
    .channel-nav a.active{
      color:var(--primary);
      background:linear-gradient(180deg,#EFF6FF,#ECFEFF);
      box-shadow:inset 0 0 0 1px rgba(37,99,235,.13);
    }
    .search-wrap{
      width:310px;
      flex:0 0 auto;
      position:relative;
    }
    .search-wrap input{
      width:100%;
      height:42px;
      border-radius:999px;
      border:1px solid var(--border);
      background:#fff;
      padding:0 42px 0 42px;
      color:var(--text);
      box-shadow:0 8px 20px rgba(15,23,42,.04);
    }
    .search-wrap::before{
      content:"⌕";
      position:absolute;
      left:17px;
      top:50%;
      transform:translateY(-50%);
      color:var(--weak);
      font-size:20px;
      line-height:1;
    }
    .search-wrap input:focus{
      border-color:rgba(37,99,235,.5);
      box-shadow:0 0 0 4px rgba(37,99,235,.1);
      outline:none;
    }
    .hot-row{
      background:rgba(247,250,255,.92);
      border-top:1px solid rgba(226,232,240,.62);
    }
    .hot-inner{
      width:min(100% - 48px,var(--container));
      margin-inline:auto;
      min-height:38px;
      display:flex;
      align-items:center;
      gap:10px;
      overflow-x:auto;
      scrollbar-width:none;
    }
    .hot-inner::-webkit-scrollbar{display:none}
    .hot-label{
      color:var(--muted);
      font-size:13px;
      flex:0 0 auto;
    }
    .hot-tag,.tag{
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border-radius:999px;
      background:var(--secondary-soft);
      color:#0F7180;
      border:1px solid rgba(6,182,212,.14);
      font-size:13px;
      font-weight:700;
      white-space:nowrap;
    }
    .tag.blue{background:var(--primary-soft);color:var(--primary);border-color:rgba(37,99,235,.13)}
    .tag.orange{background:var(--accent-soft);color:#B45309;border-color:rgba(245,158,11,.18)}
    .hero{
      position:relative;
      overflow:hidden;
      padding:86px 0 74px;
      background:
        radial-gradient(circle at 16% 16%,rgba(6,182,212,.14),transparent 28%),
        radial-gradient(circle at 84% 12%,rgba(37,99,235,.12),transparent 30%),
        linear-gradient(135deg,rgba(247,250,255,.98),rgba(255,255,255,.92)),
        url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:0;
      background-image:linear-gradient(rgba(37,99,235,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.045) 1px,transparent 1px);
      background-size:34px 34px;
      pointer-events:none;
      mask-image:linear-gradient(180deg,#000,transparent 88%);
    }
    .hero .site-container{position:relative;z-index:1}
    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin:20px 0 0;
    }
    .hero-panel{
      background:rgba(255,255,255,.88);
      border:1px solid rgba(226,232,240,.9);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-lg);
      padding:22px;
      position:relative;
      overflow:hidden;
    }
    .hero-panel::before{
      content:"";
      position:absolute;
      right:-70px;
      top:-80px;
      width:180px;
      height:180px;
      border-radius:50%;
      background:rgba(37,99,235,.1);
    }
    .panel-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
      position:relative;
      z-index:1;
    }
    .status-pill{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:6px 10px;
      border-radius:999px;
      background:#F0FDF4;
      color:#15803D;
      font-size:12px;
      font-weight:800;
    }
    .status-dot{
      width:8px;height:8px;border-radius:999px;background:#22C55E;
      box-shadow:0 0 0 4px rgba(34,197,94,.13);
    }
    .editorial-card{
      border-radius:24px;
      overflow:hidden;
      background:#fff;
      border:1px solid var(--border-soft);
      box-shadow:0 16px 36px rgba(15,23,42,.08);
      position:relative;
      z-index:1;
    }
    .editorial-card img{
      width:100%;
      aspect-ratio:16/9;
      object-fit:cover;
      transition:transform .5s ease;
    }
    .editorial-card:hover img{transform:scale(1.04)}
    .editorial-body{padding:18px}
    .article-meta{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px 12px;
      color:var(--weak);
      font-size:13px;
      margin-bottom:8px;
    }
    .dashboard-list{
      margin:16px 0 0;
      display:grid;
      gap:10px;
      position:relative;
      z-index:1;
    }
    .dash-item{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:13px;
      border:1px solid rgba(226,232,240,.85);
      border-radius:18px;
      background:rgba(247,250,255,.86);
    }
    .dash-rank{
      width:32px;height:32px;border-radius:12px;
      display:grid;place-items:center;
      background:#fff;
      color:var(--primary);
      font-weight:900;
      box-shadow:0 8px 16px rgba(15,23,42,.06);
      flex:0 0 auto;
    }
    .dash-item strong{display:block;margin-bottom:2px;line-height:1.35}
    .dash-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}
    .metric-grid{
      margin-top:26px;
    }
    .metric-card{
      padding:18px;
      border-radius:22px;
      background:rgba(255,255,255,.82);
      border:1px solid rgba(226,232,240,.82);
      box-shadow:0 12px 28px rgba(15,23,42,.055);
      height:100%;
    }
    .metric-card strong{
      display:block;
      color:var(--primary);
      font-size:23px;
      line-height:1.2;
      margin-bottom:6px;
    }
    .metric-card span{
      color:var(--muted);
      font-size:14px;
    }
    .pain-section{background:#fff}
    .pain-ladder{
      counter-reset:pain;
    }
    .pain-card{
      position:relative;
      height:100%;
      padding:26px;
      border-radius:var(--radius-lg);
      border:1px solid var(--border-soft);
      background:linear-gradient(180deg,#fff,#F8FBFF);
      box-shadow:var(--shadow);
      overflow:hidden;
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .pain-card:hover{
      transform:translateY(-5px);
      box-shadow:var(--shadow-lg);
      border-color:rgba(37,99,235,.28);
    }
    .pain-card::before{
      counter-increment:pain;
      content:"0" counter(pain);
      display:inline-grid;
      place-items:center;
      width:44px;height:44px;
      border-radius:16px;
      background:linear-gradient(135deg,var(--primary-soft),var(--secondary-soft));
      color:var(--primary);
      font-weight:900;
      margin-bottom:18px;
    }
    .pain-card::after{
      content:"";
      position:absolute;
      right:-26px;
      bottom:-28px;
      width:96px;height:96px;
      border-radius:50%;
      background:rgba(6,182,212,.08);
    }
    .pain-card p{color:var(--muted);margin-bottom:0}
    .solution-section{
      background:linear-gradient(180deg,#F7FAFF,#FFFFFF);
    }
    .image-frame{
      position:relative;
      border-radius:var(--radius-xl);
      overflow:hidden;
      border:1px solid rgba(226,232,240,.9);
      box-shadow:var(--shadow-lg);
      background:#fff;
      min-height:100%;
    }
    .image-frame img{
      width:100%;
      height:100%;
      min-height:430px;
      object-fit:cover;
    }
    .image-caption{
      position:absolute;
      left:22px;
      right:22px;
      bottom:22px;
      padding:18px;
      border-radius:22px;
      background:rgba(255,255,255,.92);
      border:1px solid rgba(226,232,240,.86);
      box-shadow:0 18px 38px rgba(15,23,42,.12);
    }
    .image-caption strong{display:block;margin-bottom:4px}
    .image-caption p{margin:0;color:var(--muted);font-size:14px}
    .solution-steps{
      display:grid;
      gap:16px;
    }
    .solution-step{
      display:grid;
      grid-template-columns:54px 1fr;
      gap:16px;
      padding:20px;
      border-radius:24px;
      border:1px solid rgba(226,232,240,.88);
      background:#fff;
      box-shadow:0 12px 30px rgba(15,23,42,.055);
      position:relative;
      transition:transform var(--transition),border-color var(--transition),box-shadow var(--transition);
    }
    .solution-step:hover{
      transform:translateX(4px);
      border-color:rgba(37,99,235,.26);
      box-shadow:var(--shadow);
    }
    .step-icon{
      width:54px;height:54px;border-radius:18px;
      display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      color:#fff;
      font-weight:900;
      font-size:18px;
      box-shadow:0 14px 28px rgba(37,99,235,.2);
    }
    .solution-step p{margin:0;color:var(--muted)}
    .channels-section{
      background:#fff;
    }
    .feature-main{
      height:100%;
      border-radius:var(--radius-xl);
      overflow:hidden;
      border:1px solid var(--border-soft);
      background:#fff;
      box-shadow:var(--shadow-lg);
    }
    .feature-main img{
      width:100%;
      aspect-ratio:16/9;
      object-fit:cover;
      transition:transform .5s ease;
    }
    .feature-main:hover img{transform:scale(1.035)}
    .feature-content{padding:26px}
    .feature-content p{color:var(--muted)}
    .portal-list{
      display:grid;
      gap:14px;
    }
    .portal-item{
      display:flex;
      gap:16px;
      padding:18px;
      border-radius:22px;
      border:1px solid var(--border-soft);
      background:linear-gradient(180deg,#fff,#F8FBFF);
      box-shadow:0 12px 26px rgba(15,23,42,.05);
      transition:transform var(--transition),border-color var(--transition),box-shadow var(--transition);
    }
    .portal-item:hover{
      transform:translateY(-3px);
      border-color:rgba(37,99,235,.24);
      box-shadow:var(--shadow);
    }
    .portal-icon{
      width:44px;height:44px;border-radius:16px;
      display:grid;place-items:center;
      color:var(--primary);
      background:var(--primary-soft);
      font-weight:900;
      flex:0 0 auto;
    }
    .portal-item p{margin:0;color:var(--muted);font-size:14px}
    .advantages-section{
      background:linear-gradient(135deg,#EFF6FF 0%,#FFFFFF 54%,#ECFEFF 100%);
    }
    .advantage-board{
      padding:30px;
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.82);
      border:1px solid rgba(226,232,240,.86);
      box-shadow:var(--shadow);
    }
    .advantage-card{
      height:100%;
      padding:22px;
      border-radius:24px;
      background:#fff;
      border:1px solid var(--border-soft);
      transition:transform var(--transition),border-color var(--transition);
    }
    .advantage-card:hover{
      transform:translateY(-4px);
      border-color:rgba(6,182,212,.34);
    }
    .advantage-card .badge-num{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-width:54px;
      height:36px;
      padding:0 12px;
      border-radius:999px;
      background:var(--accent-soft);
      color:#B45309;
      font-weight:900;
      margin-bottom:14px;
    }
    .advantage-card p{color:var(--muted);margin-bottom:0}
    .testimonials-section{background:#fff}
    .testimonial-card{
      height:100%;
      padding:26px;
      border-radius:var(--radius-lg);
      border:1px solid var(--border-soft);
      background:linear-gradient(180deg,#fff,#F8FBFF);
      box-shadow:var(--shadow);
      position:relative;
    }
    .testimonial-card::before{
      content:"“";
      position:absolute;
      right:24px;
      top:10px;
      font-size:74px;
      line-height:1;
      color:rgba(37,99,235,.1);
      font-family:Georgia,serif;
    }
    .testimonial-card p{
      color:#334155;
      font-size:16px;
      line-height:1.85;
      position:relative;
      z-index:1;
    }
    .user-line{
      display:flex;
      align-items:center;
      gap:12px;
      margin-top:18px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
    }
    .avatar{
      width:38px;height:38px;border-radius:50%;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      color:#fff;
      display:grid;place-items:center;
      font-weight:900;
    }
    .faq-section{
      background:var(--bg-2);
    }
    .faq-shell{
      max-width:900px;
      margin-inline:auto;
      padding:14px;
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.72);
      border:1px solid rgba(226,232,240,.86);
      box-shadow:var(--shadow);
    }
    .accordion{
      background:transparent;
      margin:0;
    }
    .accordion-item{
      border:1px solid var(--border-soft);
      border-radius:20px;
      background:#fff;
      margin-bottom:12px;
      overflow:hidden;
      box-shadow:0 8px 22px rgba(15,23,42,.045);
    }
    .accordion-title{
      border:0!important;
      color:var(--text);
      font-size:17px;
      font-weight:760;
      line-height:1.5;
      padding:19px 56px 19px 20px;
      background:#fff;
    }
    .accordion-title:hover,.accordion-title:focus{
      background:var(--primary-soft);
      color:var(--primary);
    }
    .accordion-title::before{
      right:20px;
      margin-top:-10px;
      color:var(--primary);
      font-size:24px;
    }
    .accordion-content{
      border:0!important;
      padding:0 20px 20px;
      color:var(--muted);
      line-height:1.85;
      background:#fff;
    }
    .cta-section{background:#fff}
    .cta-banner{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      padding:42px;
      background:
        radial-gradient(circle at 15% 30%,rgba(6,182,212,.2),transparent 28%),
        radial-gradient(circle at 86% 20%,rgba(245,158,11,.16),transparent 24%),
        linear-gradient(135deg,#EFF6FF,#FFFFFF 56%,#ECFEFF);
      border:1px solid rgba(226,232,240,.88);
      box-shadow:var(--shadow-lg);
    }
    .cta-banner::after{
      content:"";
      position:absolute;
      width:240px;height:240px;
      right:-100px;bottom:-120px;
      border-radius:50%;
      border:34px solid rgba(37,99,235,.08);
    }
    .cta-banner .grid-x{position:relative;z-index:1}
    .cta-banner p{color:var(--muted);margin-bottom:0}
    .site-footer{
      background:#0F172A;
      color:#DDE7F5;
      padding:58px 0 26px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .footer-brand .logo-title{color:#fff}
    .footer-text{
      color:#B6C4D6;
      max-width:380px;
      font-size:15px;
      line-height:1.85;
    }
    .footer-col h3{
      color:#fff;
      font-size:17px;
      margin-bottom:16px;
    }
    .footer-links,.keyword-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:#B6C4D6;
      font-size:15px;
    }
    .footer-links a:hover{
      color:#fff;
      text-decoration:underline;
      text-underline-offset:4px;
    }
    .keyword-list{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .keyword-list span{
      display:inline-flex;
      padding:6px 10px;
      border-radius:999px;
      background:rgba(37,99,235,.14);
      border:1px solid rgba(148,163,184,.18);
      color:#DDE7F5;
      font-size:13px;
    }
    .footer-bottom{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(148,163,184,.18);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      color:#94A3B8;
      font-size:14px;
      flex-wrap:wrap;
    }
    .rank-mini{
      display:grid;
      grid-template-columns:1fr;
      gap:9px;
      margin-top:16px;
    }
    .rank-line{
      display:flex;
      align-items:center;
      gap:10px;
      padding:10px 12px;
      border-radius:16px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(226,232,240,.8);
      color:var(--muted);
      font-size:14px;
    }
    .rank-line b{
      width:24px;height:24px;border-radius:9px;
      display:grid;place-items:center;
      background:var(--primary-soft);
      color:var(--primary);
      flex:0 0 auto;
    }
    @media (max-width:1024px){
      .site-container,.brand-row-inner,.nav-row-inner,.hot-inner{width:min(100% - 40px,var(--container))}
      .search-wrap{width:240px}
      .channel-nav{gap:6px}
      .channel-nav a{padding:9px 12px}
      .section{padding:72px 0}
      .hero{padding:70px 0 62px}
    }
    @media (max-width:768px){
      .brand-actions{display:none}
      .mobile-toggle{display:flex}
      .nav-row-inner{
        display:none;
        align-items:stretch;
        padding:14px 0;
        flex-direction:column;
      }
      .portal-header.is-open .nav-row-inner{display:flex}
      .channel-nav{
        flex-direction:column;
        align-items:stretch;
      }
      .channel-nav a{
        justify-content:flex-start;
        border-radius:16px;
        padding:12px 14px;
      }
      .search-wrap{width:100%}
      .hot-inner{min-height:42px}
      .hero{text-align:left}
      .hero-panel{margin-top:28px}
      .image-frame img{min-height:300px}
      .section{padding:62px 0}
      .cta-banner{padding:30px}
      .portal-item{flex-direction:column}
      .footer-bottom{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:640px){
      .site-container,.brand-row-inner,.hot-inner{width:min(100% - 32px,var(--container))}
      .logo-title{font-size:16px}
      .logo-subtitle{display:none}
      .hero{padding:54px 0 48px}
      .lead{font-size:16px}
      .button-group-custom{width:100%}
      .btn{width:100%}
      .metric-grid .cell{margin-bottom:12px}
      .pain-card,.feature-content,.testimonial-card{padding:22px}
      .solution-step{grid-template-columns:1fr}
      .step-icon{width:48px;height:48px}
      .advantage-board{padding:18px}
      .cta-banner{padding:24px;border-radius:24px}
      .accordion-title{font-size:16px;padding-right:48px}
    }
    @media (max-width:480px){
      h1{font-size:31px}
      h2{font-size:26px}
      h3{font-size:20px}
      .logo-mark{width:36px;height:36px;border-radius:12px}
      .brand-row-inner{min-height:46px}
      .section{padding:52px 0}
      .hero-tags{gap:8px}
      .tag,.hot-tag{font-size:12px}
      .editorial-body{padding:16px}
      .image-caption{left:14px;right:14px;bottom:14px;padding:14px}
    }

/* roulang page: category1 */
:root{
      --primary:#2563eb;
      --primary-dark:#1d4ed8;
      --primary-soft:#eff6ff;
      --secondary:#06b6d4;
      --secondary-soft:#ecfeff;
      --accent:#f59e0b;
      --accent-soft:#fff7ed;
      --bg:#f7faff;
      --bg-alt:#f5f7fb;
      --surface:#ffffff;
      --text:#1f2937;
      --muted:#64748b;
      --weak:#94a3b8;
      --border:#e2e8f0;
      --border-strong:#cbd5e1;
      --footer:#0f172a;
      --shadow-sm:0 8px 22px rgba(15,23,42,.06);
      --shadow-md:0 16px 40px rgba(15,23,42,.08);
      --shadow-lg:0 22px 56px rgba(15,23,42,.12);
      --radius-sm:12px;
      --radius-md:18px;
      --radius-lg:24px;
      --radius-xl:30px;
      --max:1200px;
      --speed:.24s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 12% 6%, rgba(37,99,235,.09), transparent 28%),
        radial-gradient(circle at 82% 12%, rgba(6,182,212,.08), transparent 24%),
        var(--bg);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition:color var(--speed),background var(--speed),border-color var(--speed),transform var(--speed),box-shadow var(--speed);
    }
    a:hover{color:var(--primary)}
    a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
      outline:3px solid rgba(37,99,235,.24);
      outline-offset:3px;
      border-radius:12px;
    }
    img{max-width:100%;height:auto;display:block}
    button,input{font:inherit}
    .site-container{
      width:min(100% - 48px,var(--max));
      margin:0 auto;
    }
    .skip-link{
      position:absolute;
      left:18px;
      top:-80px;
      z-index:9999;
      padding:10px 14px;
      background:var(--primary);
      color:#fff;
      border-radius:999px;
      box-shadow:var(--shadow-sm);
    }
    .skip-link:focus{top:14px;color:#fff}
    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      background:rgba(255,255,255,.95);
      border-bottom:1px solid rgba(226,232,240,.9);
      box-shadow:0 10px 30px rgba(15,23,42,.04);
      backdrop-filter:saturate(160%) blur(14px);
    }
    .brand-row{
      min-height:52px;
      border-bottom:1px solid rgba(226,232,240,.75);
      display:flex;
      align-items:center;
    }
    .brand-row-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:22px;
    }
    .brand-logo,.footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      color:var(--text);
    }
    .logo-mark{
      width:44px;
      height:44px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:#fff;
      font-weight:800;
      letter-spacing:.2px;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      box-shadow:0 12px 28px rgba(37,99,235,.25);
      flex:0 0 auto;
    }
    .logo-text{display:flex;flex-direction:column;line-height:1.18}
    .logo-title{font-size:18px;font-weight:800;color:#0f172a}
    .logo-subtitle{font-size:12px;color:var(--muted);margin-top:2px}
    .brand-tools{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:13px;
      white-space:nowrap;
    }
    .tool-pill{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 11px;
      border:1px solid var(--border);
      border-radius:999px;
      background:#fff;
    }
    .tool-pill strong{color:var(--primary);font-weight:700}
    .nav-row{min-height:62px;display:flex;align-items:center}
    .nav-row-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .channel-nav{
      display:flex;
      align-items:center;
      gap:8px;
      flex:0 0 auto;
    }
    .channel-nav a{
      display:inline-flex;
      align-items:center;
      min-height:40px;
      padding:9px 15px;
      border-radius:999px;
      color:#334155;
      font-size:15px;
      font-weight:700;
      border:1px solid transparent;
    }
    .channel-nav a:hover{
      color:var(--primary);
      background:var(--primary-soft);
      border-color:#dbeafe;
    }
    .channel-nav a.active{
      color:var(--primary);
      background:linear-gradient(180deg,#eff6ff,#ffffff);
      border-color:#bfdbfe;
      box-shadow:0 8px 18px rgba(37,99,235,.08);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:12px;
      min-width:0;
      flex:1 1 auto;
    }
    .search-box{
      position:relative;
      width:min(360px,100%);
      min-width:220px;
    }
    .search-box input{
      width:100%;
      height:42px;
      border:1px solid var(--border);
      background:#fff;
      border-radius:999px;
      color:var(--text);
      padding:0 16px 0 42px;
      box-shadow:inset 0 1px 0 rgba(15,23,42,.02);
      transition:border-color var(--speed),box-shadow var(--speed);
    }
    .search-box input:focus{
      border-color:#93c5fd;
      box-shadow:0 0 0 4px rgba(37,99,235,.10);
    }
    .search-box:before{
      content:"⌕";
      position:absolute;
      left:16px;
      top:50%;
      transform:translateY(-53%);
      color:var(--weak);
      font-size:22px;
      line-height:1;
    }
    .hot-tags{
      display:flex;
      align-items:center;
      gap:8px;
      overflow:hidden;
      white-space:nowrap;
    }
    .hot-tags span,.tag,.keyword-list span{
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:6px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:700;
      color:#1e40af;
      background:var(--primary-soft);
      border:1px solid #dbeafe;
    }
    .menu-toggle{display:none}
    .page-hero{
      position:relative;
      overflow:hidden;
      padding:58px 0 44px;
      background:
        linear-gradient(90deg,rgba(247,250,255,.96) 0%,rgba(255,255,255,.82) 56%,rgba(239,246,255,.90) 100%),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      border-bottom:1px solid rgba(226,232,240,.78);
    }
    .page-hero:after{
      content:"";
      position:absolute;
      right:-90px;
      top:-100px;
      width:320px;
      height:320px;
      border-radius:999px;
      background:radial-gradient(circle,rgba(6,182,212,.17),transparent 67%);
      pointer-events:none;
    }
    .breadcrumb{
      margin:0 0 18px;
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      color:var(--muted);
      font-size:14px;
    }
    .breadcrumb a{color:var(--primary);font-weight:700}
    .breadcrumb .sep{color:var(--weak)}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-bottom:14px;
      padding:8px 13px;
      border-radius:999px;
      border:1px solid #bfdbfe;
      background:rgba(239,246,255,.92);
      color:#1d4ed8;
      font-size:13px;
      font-weight:800;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--secondary);
      box-shadow:0 0 0 5px rgba(6,182,212,.14);
    }
    h1,h2,h3,p{margin-top:0}
    h1{
      max-width:850px;
      font-size:clamp(32px,5vw,52px);
      line-height:1.14;
      letter-spacing:-.03em;
      font-weight:850;
      color:#0f172a;
      margin-bottom:18px;
    }
    .hero-lead{
      max-width:790px;
      color:#475569;
      font-size:18px;
      line-height:1.9;
      margin-bottom:24px;
    }
    .hero-meta-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
      max-width:860px;
      margin-top:26px;
    }
    .hero-stat{
      border:1px solid rgba(226,232,240,.95);
      background:rgba(255,255,255,.88);
      border-radius:var(--radius-md);
      padding:16px 18px;
      box-shadow:var(--shadow-sm);
    }
    .hero-stat strong{
      display:block;
      color:#0f172a;
      font-size:20px;
      line-height:1.25;
      margin-bottom:4px;
    }
    .hero-stat span{display:block;color:var(--muted);font-size:13px;line-height:1.55}
    .filter-section{
      padding:26px 0 10px;
      background:linear-gradient(180deg,#fff,rgba(247,250,255,.7));
    }
    .filter-bar{
      display:flex;
      align-items:center;
      gap:10px;
      overflow-x:auto;
      padding:8px 2px 12px;
      scrollbar-width:thin;
    }
    .filter-button{
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:8px 14px;
      border-radius:999px;
      color:#334155;
      border:1px solid var(--border);
      background:#fff;
      font-size:14px;
      font-weight:750;
      box-shadow:0 4px 12px rgba(15,23,42,.03);
    }
    .filter-button:hover,.filter-button.is-current{
      color:var(--primary);
      background:var(--primary-soft);
      border-color:#bfdbfe;
      transform:translateY(-1px);
    }
    .main-section{
      padding:46px 0 86px;
    }
    .section-heading{
      margin-bottom:22px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      margin-bottom:8px;
      color:var(--primary);
      font-weight:850;
      font-size:13px;
      letter-spacing:.03em;
    }
    h2{
      font-size:clamp(26px,3.3vw,38px);
      line-height:1.22;
      color:#0f172a;
      font-weight:850;
      letter-spacing:-.02em;
      margin-bottom:12px;
    }
    .section-desc{
      max-width:760px;
      color:var(--muted);
      font-size:16px;
      line-height:1.85;
      margin-bottom:0;
    }
    .content-grid{align-items:flex-start}
    .article-stream{
      display:flex;
      flex-direction:column;
      gap:18px;
    }
    .featured-card,.article-card,.sidebar-card,.cta-banner,.faq-card{
      background:var(--surface);
      border:1px solid rgba(226,232,240,.95);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-md);
      overflow:hidden;
      transition:transform var(--speed),box-shadow var(--speed),border-color var(--speed);
    }
    .featured-card:hover,.article-card:hover,.sidebar-card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-lg);
      border-color:#bfdbfe;
    }
    .featured-card{
      display:grid;
      grid-template-columns:minmax(260px,42%) 1fr;
      gap:0;
      min-height:340px;
    }
    .image-wrap{
      position:relative;
      overflow:hidden;
      background:var(--bg-alt);
    }
    .image-wrap img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease;
    }
    .featured-card:hover .image-wrap img,.article-card:hover .article-thumb img{transform:scale(1.045)}
    .image-badge{
      position:absolute;
      left:16px;
      top:16px;
      z-index:2;
      display:inline-flex;
      align-items:center;
      gap:6px;
      padding:7px 11px;
      border-radius:999px;
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      font-weight:800;
      font-size:12px;
      box-shadow:0 10px 26px rgba(37,99,235,.22);
    }
    .featured-content{padding:30px}
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      margin-bottom:12px;
      color:var(--weak);
      font-size:13px;
      font-weight:650;
    }
    .meta-dot{
      width:4px;
      height:4px;
      border-radius:50%;
      background:var(--border-strong);
    }
    .featured-content h3{
      font-size:27px;
      line-height:1.34;
      color:#0f172a;
      font-weight:850;
      margin-bottom:12px;
    }
    .featured-content p,.article-body p,.sidebar-card p{
      color:var(--muted);
      line-height:1.85;
      margin-bottom:16px;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:7px;
      color:var(--primary);
      font-weight:800;
    }
    .text-link:after{
      content:"→";
      transition:transform var(--speed);
    }
    .text-link:hover:after{transform:translateX(4px)}
    .article-card{
      display:grid;
      grid-template-columns:210px 1fr;
      gap:0;
      min-height:170px;
    }
    .article-thumb{
      overflow:hidden;
      background:#eef2ff;
    }
    .article-thumb img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform .45s ease;
    }
    .article-body{
      padding:22px 24px;
      min-width:0;
    }
    .article-body h3{
      font-size:21px;
      line-height:1.42;
      color:#0f172a;
      font-weight:820;
      margin-bottom:8px;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .article-body p{
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
      margin-bottom:13px;
    }
    .sidebar{
      position:sticky;
      top:136px;
      display:flex;
      flex-direction:column;
      gap:18px;
    }
    .sidebar-card{
      padding:22px;
      border-radius:var(--radius-lg);
    }
    .sidebar-card h2,.sidebar-card h3{
      font-size:20px;
      line-height:1.35;
      font-weight:850;
      color:#0f172a;
      margin-bottom:14px;
    }
    .keyword-list{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .keyword-list span{
      color:#075985;
      background:var(--secondary-soft);
      border-color:#cffafe;
    }
    .recommend-list,.quick-list{
      list-style:none;
      margin:0;
      padding:0;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .recommend-list a{
      display:block;
      padding:12px 12px;
      border:1px solid var(--border);
      border-radius:14px;
      background:#fff;
      color:#334155;
      font-weight:750;
      line-height:1.55;
    }
    .recommend-list a:hover{
      color:var(--primary);
      background:var(--primary-soft);
      border-color:#bfdbfe;
    }
    .quick-list a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px 0;
      border-bottom:1px dashed var(--border);
      color:#334155;
      font-weight:750;
    }
    .quick-list li:last-child a{border-bottom:0}
    .quick-list a:after{content:"›";font-size:22px;color:var(--weak)}
    .quick-list a:hover:after{color:var(--primary)}
    .mini-faq{
      border-radius:18px;
      background:linear-gradient(180deg,var(--primary-soft),#fff);
      border:1px solid #dbeafe;
      padding:16px;
    }
    .mini-faq strong{display:block;color:#0f172a;margin-bottom:6px}
    .mini-faq p{font-size:14px;margin:0;color:var(--muted)}
    .ranking-panel{
      margin-top:34px;
      padding:30px;
      border-radius:var(--radius-xl);
      background:#0f172a;
      color:#e5e7eb;
      overflow:hidden;
      position:relative;
      box-shadow:var(--shadow-lg);
    }
    .ranking-panel:before{
      content:"";
      position:absolute;
      inset:auto -80px -120px auto;
      width:300px;
      height:300px;
      border-radius:50%;
      background:rgba(6,182,212,.18);
    }
    .ranking-panel h2{
      color:#fff;
      font-size:28px;
      margin-bottom:8px;
    }
    .ranking-panel p{color:#cbd5e1;max-width:780px;margin-bottom:20px}
    .rank-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
      position:relative;
      z-index:1;
    }
    .rank-item{
      border:1px solid rgba(255,255,255,.14);
      border-radius:18px;
      background:rgba(255,255,255,.06);
      padding:18px;
    }
    .rank-item b{
      display:inline-grid;
      place-items:center;
      width:32px;
      height:32px;
      border-radius:11px;
      background:rgba(37,99,235,.28);
      color:#bfdbfe;
      margin-bottom:10px;
    }
    .rank-item strong{display:block;color:#fff;font-size:18px;margin-bottom:4px}
    .rank-item span{display:block;color:#cbd5e1;font-size:13px;line-height:1.65}
    .pagination-wrap{
      display:flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      margin-top:28px;
      overflow-x:auto;
      padding-bottom:4px;
    }
    .page-link{
      min-width:40px;
      height:40px;
      display:inline-grid;
      place-items:center;
      padding:0 12px;
      border-radius:13px;
      border:1px solid var(--border);
      background:#fff;
      color:#334155;
      font-weight:800;
      box-shadow:0 5px 14px rgba(15,23,42,.04);
    }
    .page-link:hover,.page-link.current{
      color:#fff;
      border-color:var(--primary);
      background:var(--primary);
      box-shadow:0 12px 24px rgba(37,99,235,.22);
    }
    .faq-section{
      padding:82px 0;
      background:linear-gradient(180deg,#fff,var(--bg-alt));
      border-top:1px solid rgba(226,232,240,.76);
    }
    .faq-card{padding:10px 24px}
    .accordion{
      background:transparent;
      margin:0;
    }
    .accordion-item{
      border-bottom:1px solid var(--border);
    }
    .accordion-item:last-child{border-bottom:0}
    .accordion-title{
      border:0!important;
      padding:20px 38px 20px 0!important;
      color:#0f172a!important;
      font-weight:800;
      font-size:17px;
      line-height:1.5;
      background:transparent!important;
    }
    .accordion-title:hover,.accordion-title:focus{
      color:var(--primary)!important;
      background:transparent!important;
    }
    .accordion-title:before{
      right:0!important;
      color:var(--primary);
      font-size:22px;
      margin-top:-11px!important;
    }
    .accordion-content{
      border:0!important;
      padding:0 0 20px!important;
      color:var(--muted);
      font-size:16px;
      line-height:1.85;
      background:transparent!important;
    }
    .cta-section{
      padding:0 0 88px;
      background:var(--bg-alt);
    }
    .cta-banner{
      position:relative;
      padding:34px;
      border-radius:var(--radius-xl);
      background:
        radial-gradient(circle at 90% 15%,rgba(6,182,212,.16),transparent 26%),
        linear-gradient(135deg,#eff6ff,#ffffff 52%,#ecfeff);
    }
    .cta-banner .grid-x{align-items:center}
    .cta-banner h2{
      font-size:30px;
      margin-bottom:10px;
    }
    .cta-banner p{color:var(--muted);margin-bottom:0;max-width:740px}
    .button-group-custom{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      flex-wrap:wrap;
      gap:12px;
      margin:0;
    }
    .btn-primary,.btn-secondary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:850;
      line-height:1.2;
      border:1px solid transparent;
      cursor:pointer;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--primary-dark));
      box-shadow:0 14px 28px rgba(37,99,235,.24);
    }
    .btn-primary:hover{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 18px 36px rgba(37,99,235,.30);
    }
    .btn-secondary{
      color:var(--primary);
      background:#fff;
      border-color:#bfdbfe;
      box-shadow:0 10px 20px rgba(15,23,42,.05);
    }
    .btn-secondary:hover{
      color:var(--primary-dark);
      background:var(--primary-soft);
      transform:translateY(-2px);
    }
    .site-footer{
      background:var(--footer);
      color:#cbd5e1;
      padding:60px 0 28px;
    }
    .site-footer .footer-brand{color:#fff;margin-bottom:18px}
    .site-footer .logo-title{color:#fff}
    .site-footer .logo-subtitle{color:#93c5fd}
    .footer-text{
      max-width:470px;
      color:#cbd5e1;
      line-height:1.85;
      margin:0;
    }
    .footer-col h3{
      color:#fff;
      font-size:17px;
      font-weight:850;
      margin:4px 0 16px;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .footer-links a{
      color:#cbd5e1;
      font-weight:650;
    }
    .footer-links a:hover{
      color:#93c5fd;
      text-decoration:underline;
      text-underline-offset:4px;
    }
    .site-footer .keyword-list span{
      color:#dbeafe;
      background:rgba(37,99,235,.16);
      border-color:rgba(147,197,253,.28);
    }
    .footer-bottom{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      margin-top:38px;
      padding-top:22px;
      border-top:1px solid rgba(148,163,184,.22);
      color:#94a3b8;
      font-size:13px;
      line-height:1.6;
    }
    @media (max-width:1024px){
      .site-container{width:min(100% - 40px,var(--max))}
      .brand-tools .tool-pill:nth-child(2){display:none}
      .hot-tags{display:none}
      .search-box{min-width:190px;width:260px}
      .featured-card{grid-template-columns:1fr}
      .image-wrap{min-height:260px}
      .sidebar{position:static;margin-top:22px}
      .rank-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 32px,var(--max))}
      .brand-row-inner{align-items:flex-start}
      .brand-tools{display:none}
      .nav-row{min-height:auto;padding:10px 0 14px}
      .nav-row-inner{
        display:grid;
        grid-template-columns:1fr auto;
        gap:12px;
      }
      .channel-nav{
        grid-column:1 / -1;
        order:2;
        overflow-x:auto;
        padding-bottom:2px;
      }
      .nav-actions{
        grid-column:1 / -1;
        order:1;
        justify-content:stretch;
      }
      .search-box{width:100%;min-width:0}
      .page-hero{padding:42px 0 34px}
      .hero-lead{font-size:16px}
      .hero-meta-grid{grid-template-columns:1fr;gap:10px}
      .main-section{padding:34px 0 64px}
      .article-card{grid-template-columns:160px 1fr}
      .article-body{padding:18px}
      .article-body h3{font-size:19px}
      .ranking-panel{padding:24px}
      .faq-section{padding:60px 0}
      .cta-section{padding-bottom:64px}
      .cta-banner{padding:26px}
      .button-group-custom{justify-content:flex-start;margin-top:18px}
      .footer-bottom{flex-direction:column;align-items:flex-start}
    }
    @media (max-width:640px){
      .logo-mark{width:40px;height:40px;border-radius:14px}
      .logo-title{font-size:16px}
      .channel-nav a{padding:8px 13px;font-size:14px}
      h1{font-size:32px}
      .breadcrumb{font-size:13px}
      .filter-button{font-size:13px}
      .featured-content{padding:22px}
      .featured-content h3{font-size:22px}
      .article-card{grid-template-columns:1fr}
      .article-thumb{height:190px}
      .rank-grid{grid-template-columns:1fr}
      .faq-card{padding:4px 18px}
      .accordion-title{font-size:16px;padding:18px 34px 18px 0!important}
      .btn-primary,.btn-secondary{width:100%}
      .button-group-custom{width:100%}
      .footer-col{margin-bottom:26px}
    }
    @media (max-width:480px){
      .site-container{width:min(100% - 28px,var(--max))}
      .brand-row{min-height:50px}
      .page-hero{padding:34px 0 30px}
      h1{font-size:30px}
      .hero-stat{padding:14px}
      .featured-content,.article-body,.sidebar-card{padding:18px}
      .image-wrap{min-height:210px}
      .article-thumb{height:168px}
      .ranking-panel h2,.cta-banner h2{font-size:24px}
      .pagination-wrap{justify-content:flex-start}
    }