/* roulang page: index */
:root{
      --primary:#2f6fdb;
      --primary-600:#265fc0;
      --primary-700:#1f4fa2;
      --primary-soft:#eaf2ff;
      --primary-soft-2:#f1f6ff;
      --cyan-soft:#e7f8fb;
      --ink:#172033;
      --ink-2:#1d2939;
      --muted:#667085;
      --muted-2:#98a2b3;
      --line:#dbe8f8;
      --line-strong:#c9daf1;
      --bg:#f7faff;
      --card:#ffffff;
      --card-blue:#fbfdff;
      --gold:#b88935;
      --shadow-sm:0 10px 26px rgba(31,45,61,.07);
      --shadow:0 18px 48px rgba(31,45,61,.09);
      --shadow-lg:0 28px 70px rgba(31,45,61,.12);
      --radius-sm:14px;
      --radius:22px;
      --radius-lg:30px;
      --container:1200px;
      --ease:all .24s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 6%, rgba(47,111,219,.12), transparent 30%),
        radial-gradient(circle at 86% 14%, rgba(54,190,210,.10), transparent 28%),
        linear-gradient(180deg,#f7faff 0%,#ffffff 42%,#f7faff 100%);
      line-height:1.75;
      font-size:16px;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--primary)}
    img{max-width:100%;height:auto;display:block}
    button,input{font:inherit}
    ::selection{background:rgba(47,111,219,.18);color:var(--ink)}
    :focus-visible{
      outline:3px solid rgba(47,111,219,.28);
      outline-offset:3px;
      border-radius:12px;
    }

    .container,.container-xl{max-width:var(--container)}
    .site-section{padding:84px 0}
    .site-section.tight{padding:60px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:30px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary);
      background:var(--primary-soft);
      border:1px solid rgba(47,111,219,.14);
      border-radius:999px;
      padding:7px 13px;
      font-size:13px;
      font-weight:700;
      margin-bottom:12px;
    }
    .section-title{
      font-size:34px;
      line-height:1.22;
      letter-spacing:-.02em;
      margin:0;
      font-weight:800;
      color:var(--ink);
    }
    .section-desc{
      color:var(--muted);
      max-width:720px;
      margin:12px 0 0;
      line-height:1.8;
    }

    .top-shell{
      position:relative;
      z-index:20;
      background:rgba(255,255,255,.94);
      border-bottom:1px solid #e5edf8;
      box-shadow:0 8px 30px rgba(23,32,51,.04);
    }
    .brand-row{
      padding:16px 0 14px;
    }
    .brand-wrap{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:44px;
      height:44px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:
        linear-gradient(145deg,rgba(47,111,219,1),rgba(63,146,245,1));
      box-shadow:0 12px 28px rgba(47,111,219,.25);
      color:#fff;
      position:relative;
      overflow:hidden;
      flex:0 0 auto;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      width:42px;
      height:42px;
      right:-18px;
      bottom:-16px;
      border-radius:50%;
      background:rgba(255,255,255,.18);
    }
    .brand-mark i{font-size:22px;position:relative;z-index:1}
    .brand-name{
      font-size:20px;
      font-weight:850;
      letter-spacing:-.02em;
      color:var(--ink);
      line-height:1.15;
    }
    .brand-sub{
      display:block;
      font-size:12px;
      color:var(--muted);
      font-weight:600;
      margin-top:3px;
      letter-spacing:0;
    }
    .nav-search{
      flex:1;
      max-width:520px;
      min-width:260px;
      margin:0 22px;
      position:relative;
    }
    .nav-search .bi-search{
      position:absolute;
      left:18px;
      top:50%;
      transform:translateY(-50%);
      color:var(--muted-2);
      z-index:2;
    }
    .search-control{
      width:100%;
      height:48px;
      border-radius:999px;
      border:1px solid transparent;
      background:#f0f5fc;
      padding:0 18px 0 46px;
      color:var(--ink);
      transition:var(--ease);
    }
    .search-control::placeholder{color:#8b98aa}
    .search-control:focus{
      outline:none;
      background:#fff;
      border-color:rgba(47,111,219,.45);
      box-shadow:0 0 0 4px rgba(47,111,219,.10);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .btn{
      border-radius:999px;
      font-weight:750;
      letter-spacing:.01em;
      padding:12px 20px;
      border:1px solid transparent;
      transition:var(--ease);
      line-height:1.2;
    }
    .btn-primary-custom{
      background:linear-gradient(135deg,var(--primary),#448bf0);
      color:#fff;
      box-shadow:0 12px 26px rgba(47,111,219,.23);
    }
    .btn-primary-custom:hover{
      background:linear-gradient(135deg,var(--primary-600),#347be2);
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 18px 34px rgba(47,111,219,.28);
    }
    .btn-soft{
      background:#fff;
      color:var(--primary);
      border-color:rgba(47,111,219,.18);
      box-shadow:0 10px 22px rgba(31,45,61,.05);
    }
    .btn-soft:hover{
      background:var(--primary-soft);
      border-color:rgba(47,111,219,.28);
      transform:translateY(-2px);
      color:var(--primary-700);
    }
    .btn-ghost{
      color:var(--ink);
      background:rgba(255,255,255,.72);
      border-color:rgba(219,232,248,.9);
    }
    .btn-ghost:hover{
      background:#fff;
      color:var(--primary);
      border-color:rgba(47,111,219,.26);
    }

    .channel-row{
      padding:0 0 14px;
      overflow:hidden;
    }
    .channel-scroll{
      display:flex;
      gap:10px;
      overflow-x:auto;
      scrollbar-width:none;
      padding:2px 0 4px;
    }
    .channel-scroll::-webkit-scrollbar{display:none}
    .channel-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      white-space:nowrap;
      padding:10px 16px;
      border-radius:999px;
      color:var(--muted);
      background:#f4f8ff;
      border:1px solid transparent;
      font-weight:700;
      font-size:14px;
    }
    .channel-link:hover{
      color:var(--primary);
      background:#fff;
      border-color:rgba(47,111,219,.18);
      box-shadow:var(--shadow-sm);
    }
    .channel-link.active{
      color:var(--primary-700);
      background:var(--primary-soft);
      border-color:rgba(47,111,219,.28);
    }

    .hero{
      padding:70px 0 56px;
      position:relative;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:38px auto auto 50%;
      width:min(560px,45vw);
      height:min(560px,45vw);
      transform:translateX(-10%);
      border-radius:50%;
      background:radial-gradient(circle, rgba(47,111,219,.13), transparent 68%);
      pointer-events:none;
    }
    .hero-panel{
      position:relative;
      border:1px solid rgba(47,111,219,.12);
      background:
        linear-gradient(135deg,rgba(255,255,255,.96),rgba(245,249,255,.92)),
        radial-gradient(circle at 80% 12%,rgba(47,111,219,.10),transparent 34%);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-lg);
      padding:42px;
      overflow:hidden;
    }
    .hero-panel::after{
      content:"";
      position:absolute;
      right:-90px;
      bottom:-120px;
      width:310px;
      height:310px;
      border-radius:44px;
      transform:rotate(22deg);
      background:linear-gradient(135deg,rgba(47,111,219,.08),rgba(87,194,214,.10));
      border:1px solid rgba(47,111,219,.08);
    }
    .hero-content{position:relative;z-index:2}
    .hero-badge{
      display:inline-flex;
      gap:9px;
      align-items:center;
      color:var(--primary-700);
      background:#fff;
      border:1px solid rgba(47,111,219,.16);
      box-shadow:0 10px 24px rgba(31,45,61,.05);
      border-radius:999px;
      padding:8px 14px;
      font-size:13px;
      font-weight:750;
      margin-bottom:18px;
    }
    h1{
      font-size:50px;
      line-height:1.16;
      font-weight:850;
      letter-spacing:-.035em;
      margin:0;
      color:var(--ink);
      max-width:760px;
    }
    .hero-lead{
      max-width:730px;
      color:var(--muted);
      font-size:17px;
      line-height:1.9;
      margin:20px 0 0;
    }
    .hero-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:28px;
    }
    .hero-metrics{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:12px;
      margin-top:32px;
    }
    .metric-pill{
      background:rgba(255,255,255,.84);
      border:1px solid rgba(47,111,219,.11);
      border-radius:18px;
      padding:14px 16px;
      box-shadow:0 10px 24px rgba(31,45,61,.04);
    }
    .metric-num{
      display:block;
      font-size:20px;
      font-weight:850;
      color:var(--ink);
      line-height:1.2;
    }
    .metric-label{
      display:block;
      font-size:13px;
      color:var(--muted);
      margin-top:4px;
    }

    .cover-stack{
      position:relative;
      z-index:2;
      min-height:420px;
    }
    .cover-card{
      position:absolute;
      background:#fff;
      border:1px solid rgba(47,111,219,.13);
      border-radius:26px;
      box-shadow:var(--shadow);
      overflow:hidden;
      transition:var(--ease);
    }
    .cover-card:hover{transform:translateY(-5px)}
    .cover-main{
      inset:22px 20px auto 10px;
      min-height:285px;
      padding:24px;
      background:
        linear-gradient(150deg,#ffffff 0%,#eef5ff 100%);
    }
    .cover-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      margin-bottom:24px;
    }
    .cover-dot{
      width:52px;
      height:52px;
      border-radius:18px;
      background:linear-gradient(135deg,var(--primary),#65c8df);
      color:#fff;
      display:grid;
      place-items:center;
      box-shadow:0 14px 28px rgba(47,111,219,.25);
      font-size:22px;
    }
    .cover-code{
      color:var(--muted-2);
      font-size:13px;
      font-weight:800;
      letter-spacing:.12em;
    }
    .cover-title{
      font-size:25px;
      font-weight:850;
      line-height:1.25;
      margin-bottom:12px;
    }
    .cover-lines span{
      display:block;
      height:10px;
      border-radius:999px;
      background:#dfeafa;
      margin:12px 0;
    }
    .cover-lines span:nth-child(1){width:88%}
    .cover-lines span:nth-child(2){width:66%}
    .cover-lines span:nth-child(3){width:74%}
    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:22px;
    }
    .mini-tag,.tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      background:var(--primary-soft);
      color:var(--primary-700);
      border:1px solid rgba(47,111,219,.12);
      padding:6px 10px;
      font-size:12px;
      font-weight:750;
      line-height:1.2;
    }
    .tag.neutral{background:#f3f6fb;color:var(--muted);border-color:#e4ebf5}
    .cover-side{
      right:0;
      bottom:42px;
      width:78%;
      min-height:132px;
      padding:18px;
      background:#fff;
    }
    .preview-item{
      display:flex;
      align-items:center;
      gap:12px;
      padding:10px;
      border-radius:16px;
      background:#f7faff;
      margin-bottom:10px;
    }
    .preview-icon{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:#fff;
      color:var(--primary);
      box-shadow:0 8px 18px rgba(31,45,61,.05);
      flex:0 0 auto;
    }
    .preview-text strong{display:block;font-size:14px;line-height:1.25}
    .preview-text span{display:block;font-size:12px;color:var(--muted);margin-top:2px}
    .cover-float{
      left:0;
      bottom:0;
      width:52%;
      padding:16px;
      background:linear-gradient(135deg,#1d2939,#253b5e);
      color:#fff;
    }
    .cover-float span{display:block;color:#c9d8ee;font-size:12px}
    .cover-float strong{font-size:20px;line-height:1.3}

    .directory-grid{
      display:grid;
      grid-template-columns:5fr 7fr;
      gap:20px;
    }
    .feature-card,.directory-card,.entry-card,.recommend-card,.proof-card,.notice-card{
      background:var(--card);
      border:1px solid rgba(47,111,219,.12);
      border-radius:var(--radius);
      box-shadow:var(--shadow-sm);
      transition:var(--ease);
      position:relative;
      overflow:hidden;
    }
    .feature-card:hover,.directory-card:hover,.entry-card:hover,.recommend-card:hover,.proof-card:hover,.notice-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:rgba(47,111,219,.24);
    }
    .feature-card{
      min-height:100%;
      padding:30px;
      background:
        linear-gradient(145deg,#ffffff 0%,#f1f7ff 100%);
    }
    .feature-index{
      position:absolute;
      right:26px;
      top:22px;
      color:rgba(47,111,219,.16);
      font-size:54px;
      font-weight:900;
      line-height:1;
    }
    .feature-visual{
      height:190px;
      border-radius:24px;
      margin-bottom:26px;
      background:
        radial-gradient(circle at 28% 30%,rgba(255,255,255,.85) 0 10%,transparent 11%),
        radial-gradient(circle at 70% 60%,rgba(101,200,223,.28),transparent 24%),
        linear-gradient(135deg,#2f6fdb,#78aef8);
      display:flex;
      align-items:flex-end;
      padding:22px;
      color:#fff;
      overflow:hidden;
      position:relative;
    }
    .feature-visual::after{
      content:"";
      position:absolute;
      width:190px;
      height:190px;
      right:-58px;
      top:-48px;
      border:1px solid rgba(255,255,255,.28);
      border-radius:45px;
      transform:rotate(28deg);
    }
    .feature-visual strong{
      font-size:28px;
      line-height:1.2;
      max-width:260px;
      position:relative;
      z-index:1;
    }
    .feature-card h2,.feature-card h3{
      font-size:26px;
      margin:0 0 12px;
      font-weight:850;
      letter-spacing:-.02em;
    }
    .feature-card p,.directory-card p,.entry-card p,.recommend-card p,.proof-card p,.notice-card p{
      color:var(--muted);
      margin:0;
    }
    .directory-list{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .directory-card{
      padding:22px;
      min-height:180px;
    }
    .card-headline{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      margin-bottom:14px;
    }
    .card-number{
      width:42px;
      height:42px;
      display:grid;
      place-items:center;
      border-radius:15px;
      background:var(--primary-soft);
      color:var(--primary);
      font-weight:900;
      flex:0 0 auto;
    }
    .directory-card h3,.entry-card h3,.recommend-card h3,.proof-card h3{
      font-size:20px;
      font-weight:800;
      margin:0;
      line-height:1.35;
      transition:var(--ease);
    }
    .directory-card:hover h3,.entry-card:hover h3,.recommend-card:hover h3{color:var(--primary)}
    .meta-row{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      color:var(--muted-2);
      font-size:13px;
      font-weight:650;
      margin-top:18px;
    }
    .meta-row i{color:var(--primary)}

    .entry-layout{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:20px;
      align-items:stretch;
    }
    .entry-card{
      padding:0;
      display:grid;
      grid-template-columns:210px 1fr;
      min-height:210px;
    }
    .entry-card.large{
      display:block;
      min-height:100%;
    }
    .entry-cover{
      min-height:190px;
      background:
        linear-gradient(145deg,rgba(47,111,219,.95),rgba(103,166,245,.86)),
        radial-gradient(circle at 40% 20%,rgba(255,255,255,.26),transparent 25%);
      display:flex;
      align-items:flex-end;
      padding:20px;
      color:#fff;
      position:relative;
      overflow:hidden;
    }
    .entry-cover::before{
      content:"";
      position:absolute;
      width:150px;
      height:150px;
      border:1px solid rgba(255,255,255,.28);
      border-radius:34px;
      right:-45px;
      top:-35px;
      transform:rotate(28deg);
    }
    .entry-cover .entry-no{
      font-size:46px;
      font-weight:900;
      line-height:1;
      opacity:.92;
      position:relative;
      z-index:1;
    }
    .entry-body{padding:24px}
    .entry-card.large .entry-cover{min-height:245px}
    .entry-card.large .entry-body{padding:28px}
    .entry-card p{margin-top:10px}
    .entry-footer{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top:22px;
      color:var(--muted-2);
      font-size:13px;
      font-weight:700;
    }
    .arrow-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--primary);
      font-weight:800;
    }
    .arrow-link i{transition:var(--ease)}
    .entry-card:hover .arrow-link i,.recommend-card:hover .arrow-link i{transform:translateX(4px)}
    .side-entry-stack{
      display:grid;
      gap:20px;
    }

    .recommend-strip{
      display:flex;
      gap:16px;
      overflow-x:auto;
      padding:4px 2px 16px;
      scrollbar-color:#cdddf3 transparent;
    }
    .recommend-card{
      min-width:280px;
      max-width:320px;
      padding:22px;
      flex:0 0 auto;
    }
    .recommend-icon{
      width:48px;
      height:48px;
      border-radius:17px;
      display:grid;
      place-items:center;
      color:var(--primary);
      background:var(--primary-soft);
      margin-bottom:16px;
      font-size:22px;
    }

    .proof-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
    }
    .proof-card{
      padding:24px;
      background:linear-gradient(180deg,#fff,#fbfdff);
    }
    .proof-num{
      font-size:34px;
      font-weight:900;
      color:var(--primary);
      line-height:1;
      margin-bottom:10px;
    }

    .timeline-wrap{
      background:#172033;
      color:#fff;
      border-radius:var(--radius-lg);
      padding:34px;
      box-shadow:var(--shadow-lg);
      position:relative;
      overflow:hidden;
    }
    .timeline-wrap::before{
      content:"";
      position:absolute;
      inset:-120px -90px auto auto;
      width:320px;
      height:320px;
      border-radius:50%;
      background:rgba(47,111,219,.24);
      filter:blur(2px);
    }
    .timeline-wrap .section-kicker{
      background:rgba(255,255,255,.08);
      color:#b9d5ff;
      border-color:rgba(255,255,255,.12);
    }
    .timeline-wrap .section-title{color:#fff}
    .timeline-wrap .section-desc{color:#c8d3e4}
    .timeline-list{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
      margin-top:26px;
      position:relative;
      z-index:1;
    }
    .timeline-item{
      padding:22px;
      background:rgba(255,255,255,.07);
      border:1px solid rgba(255,255,255,.12);
      border-radius:22px;
      transition:var(--ease);
    }
    .timeline-item:hover{
      background:rgba(255,255,255,.10);
      transform:translateY(-4px);
    }
    .timeline-step{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:34px;
      height:34px;
      border-radius:50%;
      color:#fff;
      background:var(--primary);
      font-weight:900;
      margin-bottom:16px;
    }
    .timeline-item h3{
      font-size:19px;
      font-weight:820;
      margin:0 0 8px;
    }
    .timeline-item p{
      margin:0;
      color:#c8d3e4;
      font-size:15px;
    }

    .notice-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .notice-card{
      padding:24px;
    }
    .notice-card i{
      font-size:24px;
      color:var(--primary);
      background:var(--primary-soft);
      width:48px;
      height:48px;
      display:grid;
      place-items:center;
      border-radius:17px;
      margin-bottom:16px;
    }
    .notice-card h3{
      font-size:20px;
      font-weight:800;
      margin:0 0 8px;
    }

    .faq-shell{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:28px;
      align-items:start;
    }
    .accordion{
      display:grid;
      gap:14px;
    }
    .accordion-item{
      border:1px solid rgba(47,111,219,.12) !important;
      border-radius:22px !important;
      overflow:hidden;
      background:#fff;
      box-shadow:var(--shadow-sm);
    }
    .accordion-button{
      padding:20px 22px;
      color:var(--ink);
      background:#fff;
      font-weight:800;
      box-shadow:none !important;
      line-height:1.45;
    }
    .accordion-button:not(.collapsed){
      color:var(--primary-700);
      background:var(--primary-soft-2);
    }
    .accordion-button::after{
      background-image:none;
      content:"+";
      display:grid;
      place-items:center;
      width:28px;
      height:28px;
      border-radius:50%;
      background:var(--primary-soft);
      color:var(--primary);
      font-size:20px;
      line-height:1;
      transform:none;
      font-weight:700;
    }
    .accordion-button:not(.collapsed)::after{
      content:"–";
      background:var(--primary);
      color:#fff;
    }
    .accordion-body{
      padding:0 22px 22px;
      color:var(--muted);
      background:var(--primary-soft-2);
      line-height:1.85;
    }

    .cta-block{
      border-radius:var(--radius-lg);
      padding:36px;
      background:
        linear-gradient(135deg,#eaf2ff,#ffffff 58%,#e7f8fb);
      border:1px solid rgba(47,111,219,.14);
      box-shadow:var(--shadow);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      overflow:hidden;
      position:relative;
    }
    .cta-block::after{
      content:"";
      position:absolute;
      width:240px;
      height:240px;
      border-radius:46px;
      right:-90px;
      bottom:-110px;
      transform:rotate(20deg);
      background:rgba(47,111,219,.07);
      border:1px solid rgba(47,111,219,.08);
    }
    .cta-content{position:relative;z-index:1}
    .cta-title{
      font-size:30px;
      font-weight:850;
      line-height:1.25;
      margin:0 0 10px;
      letter-spacing:-.02em;
    }
    .cta-text{
      color:var(--muted);
      margin:0;
      max-width:680px;
    }
    .cta-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      position:relative;
      z-index:1;
      flex:0 0 auto;
    }

    .site-footer{
      margin-top:70px;
      background:#172033;
      color:#d7e0ef;
      padding:54px 0 28px;
      position:relative;
      overflow:hidden;
    }
    .site-footer::before{
      content:"";
      position:absolute;
      width:420px;
      height:420px;
      border-radius:50%;
      right:-160px;
      top:-200px;
      background:rgba(47,111,219,.20);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:36px;
      position:relative;
      z-index:1;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:16px;
    }
    .footer-brand .brand-mark{box-shadow:none}
    .footer-brand .brand-name{color:#fff}
    .footer-text{
      color:#b7c4d8;
      max-width:520px;
      margin:0;
    }
    .footer-title{
      font-size:16px;
      color:#fff;
      font-weight:850;
      margin:0 0 14px;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:#b7c4d8;
      font-weight:650;
    }
    .footer-links a:hover{color:#8fc0ff}
    .footer-note{
      color:#b7c4d8;
      margin:0;
    }
    .copyright{
      position:relative;
      z-index:1;
      border-top:1px solid rgba(255,255,255,.10);
      margin-top:34px;
      padding-top:22px;
      color:#9dadc4;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
      font-size:14px;
    }

    @media (max-width:1199.98px){
      :root{--container:1080px}
      h1{font-size:44px}
      .hero-panel{padding:34px}
      .nav-search{max-width:420px;margin:0 16px}
      .entry-card{grid-template-columns:180px 1fr}
    }
    @media (max-width:991.98px){
      .brand-row .container{
        flex-wrap:wrap;
        gap:14px;
      }
      .nav-search{
        order:3;
        flex-basis:100%;
        max-width:none;
        margin:0;
      }
      .hero{padding:48px 0}
      .cover-stack{min-height:360px;margin-top:28px}
      .hero-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
      .directory-grid,.entry-layout,.faq-shell{grid-template-columns:1fr}
      .proof-grid,.notice-grid,.timeline-list{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:first-child{grid-column:1/-1}
      .section-head{align-items:flex-start;flex-direction:column}
    }
    @media (max-width:767.98px){
      body{font-size:15px}
      .site-section{padding:56px 0}
      .site-section.tight{padding:46px 0}
      .brand-row{padding:14px 0 12px}
      .brand-name{font-size:18px}
      .brand-mark{width:40px;height:40px;border-radius:14px}
      .nav-actions{width:100%}
      .nav-actions .btn{flex:1;justify-content:center}
      .channel-link{padding:9px 13px}
      .hero-panel{padding:26px;border-radius:26px}
      h1{font-size:34px;line-height:1.22}
      .hero-lead{font-size:16px}
      .hero-actions .btn{width:100%;justify-content:center}
      .hero-metrics{grid-template-columns:1fr 1fr;gap:10px}
      .cover-stack{min-height:320px}
      .cover-main{inset:8px 0 auto 0}
      .cover-side{width:88%;right:4px;bottom:34px}
      .cover-float{width:66%}
      .directory-list,.proof-grid,.notice-grid,.timeline-list{grid-template-columns:1fr}
      .entry-card{grid-template-columns:1fr}
      .entry-cover{min-height:160px}
      .section-title{font-size:27px}
      .feature-visual{height:165px}
      .cta-block{align-items:flex-start;flex-direction:column;padding:28px}
      .cta-actions{width:100%}
      .cta-actions .btn{width:100%;justify-content:center}
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      .container,.container-xl{padding-left:18px;padding-right:18px}
      .hero{padding-top:34px}
      .hero-panel{padding:22px}
      h1{font-size:31px}
      .section-title{font-size:25px}
      .hero-metrics{grid-template-columns:1fr}
      .metric-pill{padding:13px 14px}
      .cover-stack{min-height:286px}
      .cover-main{min-height:230px;padding:18px}
      .cover-title{font-size:21px}
      .cover-side{display:none}
      .cover-float{width:82%;bottom:0}
      .feature-card,.directory-card,.entry-body,.recommend-card,.proof-card,.notice-card{padding:20px}
      .feature-visual strong{font-size:24px}
      .timeline-wrap{padding:24px}
      .accordion-button{padding:18px}
      .accordion-body{padding:0 18px 18px}
    }

/* roulang page: category1 */
:root{
      --primary:#2f6fdb;
      --primary-strong:#255ec4;
      --primary-soft:#eaf2ff;
      --primary-soft-2:#f2f7ff;
      --cyan:#41a8c9;
      --ink:#172033;
      --ink-2:#24324a;
      --muted:#667085;
      --muted-2:#98a2b3;
      --line:#dce8f7;
      --line-strong:#c8dbf4;
      --bg:#f7faff;
      --card:#ffffff;
      --footer:#111b2f;
      --shadow:0 16px 42px rgba(31,45,61,.08);
      --shadow-lg:0 24px 70px rgba(31,45,61,.12);
      --radius-sm:14px;
      --radius:22px;
      --radius-lg:30px;
      --container:1220px;
      --ease:all .24s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 3%, rgba(47,111,219,.12), transparent 32%),
        radial-gradient(circle at 92% 20%, rgba(65,168,201,.10), transparent 30%),
        linear-gradient(180deg,#f7faff 0%,#fbfdff 46%,#f6faff 100%);
      line-height:1.75;
      text-rendering:optimizeLegibility;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    a:hover{color:var(--primary)}
    img{max-width:100%;height:auto;display:block}
    button,input{font:inherit}
    ::selection{background:rgba(47,111,219,.18);color:var(--ink)}
    .container{max-width:var(--container)}
    .section{padding:76px 0}
    .section-tight{padding:54px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary);
      font-weight:700;
      font-size:14px;
      letter-spacing:.03em;
      margin-bottom:10px;
    }
    .section-title{
      margin:0;
      font-size:32px;
      line-height:1.25;
      font-weight:800;
      color:var(--ink);
      letter-spacing:-.02em;
    }
    .section-desc{
      color:var(--muted);
      margin:10px 0 0;
      max-width:680px;
      font-size:16px;
    }
    .text-muted-custom{color:var(--muted)}
    .soft-divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:28px 0}

    .top-shell{
      position:relative;
      z-index:20;
      background:rgba(255,255,255,.92);
      border-bottom:1px solid var(--line);
      box-shadow:0 10px 30px rgba(31,45,61,.05);
      backdrop-filter:saturate(140%) blur(10px);
    }
    .brand-row{
      padding:16px 0;
      border-bottom:1px solid rgba(220,232,247,.78);
    }
    .brand-wrap,.footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:44px;
      height:44px;
      border-radius:16px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:linear-gradient(135deg,var(--primary),#64a6ff);
      color:#fff;
      box-shadow:0 12px 24px rgba(47,111,219,.22);
      flex:0 0 auto;
      font-size:20px;
    }
    .brand-name{
      display:block;
      font-weight:800;
      color:var(--ink);
      font-size:20px;
      line-height:1.15;
      letter-spacing:-.02em;
    }
    .brand-sub{
      display:block;
      color:var(--muted);
      font-size:12px;
      line-height:1.25;
      margin-top:3px;
    }
    .nav-search{
      position:relative;
      flex:1 1 auto;
      max-width:460px;
      margin:0 28px;
    }
    .nav-search i{
      position:absolute;
      left:17px;
      top:50%;
      transform:translateY(-50%);
      color:var(--muted-2);
      pointer-events:none;
    }
    .search-control,.form-control{
      width:100%;
      border:1px solid transparent;
      background:#f0f6ff;
      border-radius:999px;
      padding:12px 18px 12px 44px;
      color:var(--ink);
      outline:none;
      transition:var(--ease);
      min-height:48px;
    }
    .search-control::placeholder,.form-control::placeholder{color:#8da0ba}
    .search-control:focus,.form-control:focus{
      background:#fff;
      border-color:rgba(47,111,219,.45);
      box-shadow:0 0 0 4px rgba(47,111,219,.12);
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
      flex:0 0 auto;
    }
    .btn{
      border-radius:999px;
      padding:11px 18px;
      font-weight:700;
      border:1px solid transparent;
      transition:var(--ease);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      line-height:1.2;
      white-space:nowrap;
    }
    .btn-primary-custom{
      background:linear-gradient(135deg,var(--primary),#4d93ef);
      color:#fff !important;
      box-shadow:0 12px 24px rgba(47,111,219,.24);
    }
    .btn-primary-custom:hover{
      background:linear-gradient(135deg,var(--primary-strong),#367edf);
      transform:translateY(-2px);
      box-shadow:0 16px 34px rgba(47,111,219,.30);
    }
    .btn-soft{
      background:#fff;
      color:var(--primary) !important;
      border-color:var(--line-strong);
    }
    .btn-soft:hover{
      background:var(--primary-soft);
      border-color:rgba(47,111,219,.35);
      transform:translateY(-2px);
    }
    .btn:focus-visible,.channel-link:focus-visible,.brand-wrap:focus-visible,a:focus-visible{
      outline:3px solid rgba(47,111,219,.28);
      outline-offset:3px;
    }
    .channel-row{
      background:rgba(247,250,255,.86);
      padding:10px 0;
    }
    .channel-scroll{
      display:flex;
      align-items:center;
      gap:10px;
      overflow-x:auto;
      scrollbar-width:none;
      padding:2px 0;
    }
    .channel-scroll::-webkit-scrollbar{display:none}
    .channel-link{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:9px 15px;
      border-radius:999px;
      color:var(--ink-2);
      font-weight:700;
      font-size:14px;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .channel-link:hover{
      background:#fff;
      border-color:var(--line);
      color:var(--primary);
    }
    .channel-link.active{
      color:var(--primary);
      background:var(--primary-soft);
      border-color:rgba(47,111,219,.28);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.55);
    }

    .breadcrumb-wrap{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      color:var(--muted);
      font-size:14px;
      margin-bottom:18px;
    }
    .breadcrumb-wrap a{color:var(--muted);font-weight:650}
    .breadcrumb-wrap a:hover{color:var(--primary)}
    .category-hero{
      padding:58px 0 34px;
      position:relative;
    }
    .category-panel{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-lg);
      border:1px solid rgba(47,111,219,.12);
      background:
        radial-gradient(circle at 80% 15%, rgba(47,111,219,.16), transparent 36%),
        linear-gradient(135deg,#fff 0%,#f2f7ff 100%);
      box-shadow:var(--shadow);
      padding:34px;
    }
    .category-panel:before{
      content:"";
      position:absolute;
      right:-80px;
      top:-80px;
      width:220px;
      height:220px;
      border-radius:50%;
      border:38px solid rgba(47,111,219,.08);
    }
    .category-panel:after{
      content:"";
      position:absolute;
      right:80px;
      bottom:-60px;
      width:160px;
      height:160px;
      border-radius:42px;
      transform:rotate(16deg);
      background:linear-gradient(135deg,rgba(65,168,201,.14),rgba(47,111,219,.08));
    }
    .hero-content{position:relative;z-index:2}
    .label-badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      border:1px solid rgba(47,111,219,.18);
      background:rgba(255,255,255,.78);
      color:var(--primary);
      padding:8px 13px;
      border-radius:999px;
      font-size:13px;
      font-weight:800;
      margin-bottom:16px;
    }
    h1{
      margin:0;
      font-size:44px;
      line-height:1.16;
      font-weight:850;
      letter-spacing:-.035em;
      color:var(--ink);
      max-width:820px;
    }
    .hero-lead{
      max-width:780px;
      margin:16px 0 0;
      color:var(--muted);
      font-size:17px;
    }
    .hero-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:24px;
    }
    .meta-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:12px;
      margin-top:28px;
      position:relative;
      z-index:2;
    }
    .meta-card{
      background:rgba(255,255,255,.78);
      border:1px solid rgba(47,111,219,.12);
      border-radius:18px;
      padding:16px;
      min-height:86px;
    }
    .meta-num{
      display:block;
      color:var(--ink);
      font-size:22px;
      font-weight:850;
      line-height:1.2;
    }
    .meta-text{
      display:block;
      color:var(--muted);
      font-size:13px;
      margin-top:5px;
    }

    .filter-bar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:24px;
      padding:14px;
      box-shadow:0 10px 30px rgba(31,45,61,.055);
    }
    .filter-pills{
      display:flex;
      gap:10px;
      overflow-x:auto;
      scrollbar-width:none;
      padding:2px;
    }
    .filter-pills::-webkit-scrollbar{display:none}
    .filter-pill{
      border:1px solid var(--line);
      background:var(--primary-soft-2);
      color:var(--ink-2);
      border-radius:999px;
      padding:9px 14px;
      font-size:14px;
      font-weight:750;
      white-space:nowrap;
      transition:var(--ease);
    }
    .filter-pill:hover,.filter-pill.active{
      color:var(--primary);
      border-color:rgba(47,111,219,.36);
      background:var(--primary-soft);
    }
    .filter-note{
      color:var(--muted);
      font-size:13px;
      white-space:nowrap;
      padding-right:4px;
    }

    .content-layout{
      display:grid;
      grid-template-columns:minmax(0, 1fr) 360px;
      gap:24px;
      align-items:start;
    }
    .entry-list{
      display:grid;
      gap:18px;
    }
    .entry-card{
      display:grid;
      grid-template-columns:210px minmax(0,1fr);
      gap:20px;
      padding:18px;
      border-radius:24px;
      background:#fff;
      border:1px solid rgba(47,111,219,.12);
      box-shadow:0 14px 34px rgba(31,45,61,.06);
      transition:var(--ease);
    }
    .entry-card:hover{
      transform:translateY(-4px);
      border-color:rgba(47,111,219,.28);
      box-shadow:var(--shadow);
    }
    .entry-card:hover .entry-title{color:var(--primary)}
    .entry-cover{
      min-height:150px;
      border-radius:20px;
      overflow:hidden;
      position:relative;
      background:
        linear-gradient(135deg,rgba(47,111,219,.95),rgba(65,168,201,.72)),
        radial-gradient(circle at 25% 20%,rgba(255,255,255,.4),transparent 35%);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      padding:18px;
      color:#fff;
    }
    .entry-cover.alt{
      background:
        linear-gradient(135deg,#243b66,#4187dd),
        radial-gradient(circle at 70% 25%,rgba(255,255,255,.24),transparent 34%);
    }
    .entry-cover.cyan{
      background:
        linear-gradient(135deg,#246b86,#4fb0d1),
        radial-gradient(circle at 30% 80%,rgba(255,255,255,.28),transparent 34%);
    }
    .cover-code{
      font-size:13px;
      opacity:.88;
      font-weight:800;
    }
    .cover-icon{
      width:46px;
      height:46px;
      border-radius:16px;
      background:rgba(255,255,255,.18);
      display:flex;
      align-items:center;
      justify-content:center;
      font-size:22px;
      backdrop-filter:blur(6px);
    }
    .entry-body{
      min-width:0;
      display:flex;
      flex-direction:column;
      justify-content:center;
    }
    .tag-row{
      display:flex;
      gap:8px;
      flex-wrap:wrap;
      margin-bottom:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      font-size:12px;
      font-weight:800;
      color:var(--primary);
      background:var(--primary-soft);
      border:1px solid rgba(47,111,219,.14);
      padding:5px 9px;
      border-radius:999px;
    }
    .tag.gray{
      color:#536177;
      background:#f4f7fb;
      border-color:#e5edf8;
    }
    .entry-title{
      margin:0;
      font-size:21px;
      line-height:1.35;
      font-weight:820;
      color:var(--ink);
      transition:var(--ease);
    }
    .entry-desc{
      color:var(--muted);
      margin:9px 0 14px;
      font-size:15px;
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
    }
    .entry-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      color:var(--muted-2);
      font-size:13px;
      border-top:1px solid #eef4fc;
      padding-top:12px;
    }
    .entry-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:var(--primary);
      font-weight:800;
      white-space:nowrap;
    }
    .entry-link i{transition:var(--ease)}
    .entry-link:hover i{transform:translateX(3px)}

    .feature-strip{
      background:linear-gradient(135deg,#172033,#243b66);
      color:#fff;
      border-radius:26px;
      padding:24px;
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:18px;
      align-items:center;
      box-shadow:var(--shadow-lg);
      position:relative;
      overflow:hidden;
    }
    .feature-strip:after{
      content:"";
      position:absolute;
      inset:auto -80px -90px auto;
      width:240px;
      height:240px;
      border-radius:50%;
      background:rgba(77,147,239,.20);
    }
    .feature-strip h2{
      position:relative;
      z-index:1;
      margin:0 0 8px;
      font-size:23px;
      font-weight:850;
    }
    .feature-strip p{
      position:relative;
      z-index:1;
      margin:0;
      color:rgba(255,255,255,.74);
      font-size:15px;
    }
    .feature-mini{
      position:relative;
      z-index:1;
      display:grid;
      gap:8px;
    }
    .feature-mini span{
      display:flex;
      align-items:center;
      gap:8px;
      color:rgba(255,255,255,.88);
      font-size:14px;
    }

    .side-stack{
      display:grid;
      gap:18px;
      position:sticky;
      top:18px;
    }
    .side-card{
      background:#fff;
      border:1px solid rgba(47,111,219,.12);
      border-radius:24px;
      padding:22px;
      box-shadow:0 14px 34px rgba(31,45,61,.055);
    }
    .side-title{
      display:flex;
      align-items:center;
      gap:9px;
      margin:0 0 14px;
      font-size:18px;
      font-weight:850;
    }
    .side-title i{color:var(--primary)}
    .hot-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:12px;
    }
    .hot-list a{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      padding:12px;
      border-radius:16px;
      background:#f7faff;
      border:1px solid transparent;
      font-weight:750;
      color:var(--ink-2);
    }
    .hot-list a:hover{
      background:var(--primary-soft);
      border-color:rgba(47,111,219,.18);
      color:var(--primary);
      transform:translateX(2px);
    }
    .hot-list small{
      color:var(--muted-2);
      font-weight:750;
      white-space:nowrap;
    }
    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
    }
    .tag-cloud a{
      padding:8px 11px;
      border-radius:999px;
      background:#f6f9fe;
      border:1px solid var(--line);
      color:var(--muted);
      font-size:13px;
      font-weight:750;
    }
    .tag-cloud a:hover{
      color:var(--primary);
      background:var(--primary-soft);
      border-color:rgba(47,111,219,.26);
      transform:translateY(-2px);
    }

    .process-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .process-card{
      background:#fff;
      border:1px solid rgba(47,111,219,.12);
      border-radius:24px;
      padding:22px;
      box-shadow:0 14px 34px rgba(31,45,61,.055);
      transition:var(--ease);
      min-height:210px;
    }
    .process-card:hover{
      transform:translateY(-4px);
      box-shadow:var(--shadow);
      border-color:rgba(47,111,219,.24);
    }
    .process-index{
      width:42px;
      height:42px;
      border-radius:15px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--primary-soft);
      color:var(--primary);
      font-weight:900;
      margin-bottom:16px;
    }
    .process-card h3{
      font-size:18px;
      margin:0 0 8px;
      font-weight:850;
    }
    .process-card p{
      color:var(--muted);
      margin:0;
      font-size:15px;
    }

    .recommend-wrap{
      overflow:hidden;
    }
    .recommend-track{
      display:grid;
      grid-template-columns:repeat(4,minmax(240px,1fr));
      gap:16px;
    }
    .recommend-card{
      border-radius:22px;
      border:1px solid rgba(47,111,219,.12);
      background:#fff;
      padding:20px;
      box-shadow:0 12px 30px rgba(31,45,61,.055);
      transition:var(--ease);
    }
    .recommend-card:hover{
      transform:translateY(-4px);
      border-color:rgba(47,111,219,.28);
      box-shadow:var(--shadow);
    }
    .recommend-card .iconbox{
      width:42px;
      height:42px;
      border-radius:15px;
      display:flex;
      align-items:center;
      justify-content:center;
      color:var(--primary);
      background:var(--primary-soft);
      margin-bottom:14px;
      font-size:20px;
    }
    .recommend-card h3{
      font-size:18px;
      margin:0 0 8px;
      font-weight:850;
    }
    .recommend-card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }

    .faq-shell{
      background:linear-gradient(180deg,#fff,#f7faff);
      border-top:1px solid rgba(220,232,247,.72);
      border-bottom:1px solid rgba(220,232,247,.72);
    }
    .accordion{
      display:grid;
      gap:13px;
    }
    .accordion-item{
      border:1px solid rgba(47,111,219,.13) !important;
      border-radius:20px !important;
      background:#fff;
      overflow:hidden;
      box-shadow:0 10px 28px rgba(31,45,61,.045);
    }
    .accordion-button{
      border:0;
      color:var(--ink);
      background:#fff;
      box-shadow:none !important;
      font-weight:820;
      padding:19px 22px;
      line-height:1.45;
    }
    .accordion-button:not(.collapsed){
      color:var(--primary);
      background:var(--primary-soft-2);
    }
    .accordion-button:focus{
      box-shadow:0 0 0 4px rgba(47,111,219,.12) !important;
      border-color:transparent;
    }
    .accordion-button::after{
      background-image:none;
      content:"\F282";
      font-family:"bootstrap-icons";
      width:auto;
      height:auto;
      font-size:14px;
      transform:none;
      color:var(--primary);
    }
    .accordion-button:not(.collapsed)::after{
      transform:rotate(180deg);
    }
    .accordion-body{
      color:var(--muted);
      padding:0 22px 20px;
      background:var(--primary-soft-2);
    }

    .cta-card{
      position:relative;
      overflow:hidden;
      border-radius:30px;
      border:1px solid rgba(47,111,219,.16);
      background:
        radial-gradient(circle at 18% 20%, rgba(47,111,219,.16), transparent 34%),
        linear-gradient(135deg,#eaf2ff 0%,#ffffff 64%);
      box-shadow:var(--shadow);
      padding:34px;
      display:grid;
      grid-template-columns:minmax(0,1fr) auto;
      align-items:center;
      gap:24px;
    }
    .cta-card h2{
      margin:0 0 8px;
      font-size:29px;
      font-weight:850;
      letter-spacing:-.02em;
    }
    .cta-card p{
      margin:0;
      color:var(--muted);
      max-width:700px;
    }
    .cta-actions{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }

    .site-footer{
      background:var(--footer);
      color:rgba(255,255,255,.78);
      padding:54px 0 26px;
    }
    .site-footer .brand-name{color:#fff}
    .site-footer .brand-sub{color:rgba(255,255,255,.62)}
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .75fr 1fr;
      gap:34px;
      align-items:start;
    }
    .footer-text,.footer-note{
      margin:16px 0 0;
      color:rgba(255,255,255,.68);
      max-width:480px;
      font-size:14px;
    }
    .footer-title{
      font-size:16px;
      font-weight:850;
      margin:0 0 14px;
      color:#fff;
    }
    .footer-links{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(255,255,255,.68);
      font-size:14px;
    }
    .footer-links a:hover{
      color:#9fc4ff;
      padding-left:3px;
    }
    .copyright{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
      margin-top:36px;
      padding-top:22px;
      border-top:1px solid rgba(255,255,255,.10);
      color:rgba(255,255,255,.50);
      font-size:13px;
    }

    @media (max-width:1199.98px){
      h1{font-size:40px}
      .nav-search{max-width:380px;margin:0 18px}
      .content-layout{grid-template-columns:minmax(0,1fr) 320px}
      .entry-card{grid-template-columns:190px minmax(0,1fr)}
      .process-grid{grid-template-columns:repeat(2,1fr)}
      .recommend-track{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:991.98px){
      .brand-row .container{
        flex-wrap:wrap;
        gap:14px;
      }
      .nav-search{
        order:3;
        max-width:none;
        flex-basis:100%;
        margin:0;
      }
      .category-panel{padding:28px}
      .meta-strip{grid-template-columns:repeat(2,1fr)}
      .content-layout{grid-template-columns:1fr}
      .side-stack{position:static;grid-template-columns:repeat(2,1fr)}
      .filter-bar{align-items:flex-start;flex-direction:column}
      .filter-note{white-space:normal}
      .footer-grid{grid-template-columns:1fr 1fr}
      .cta-card{grid-template-columns:1fr}
      .cta-actions{justify-content:flex-start}
    }
    @media (max-width:767.98px){
      .section{padding:54px 0}
      .section-tight{padding:42px 0}
      .section-head{
        display:block;
        margin-bottom:22px;
      }
      .section-title{font-size:26px}
      .brand-row{padding:13px 0}
      .brand-mark{width:40px;height:40px;border-radius:14px}
      .brand-name{font-size:18px}
      .nav-actions{
        width:100%;
        justify-content:flex-start;
        order:2;
      }
      .category-hero{padding:38px 0 24px}
      .category-panel{
        border-radius:24px;
        padding:24px 20px;
      }
      h1{font-size:32px;line-height:1.22}
      .hero-lead{font-size:16px}
      .hero-actions .btn{flex:1 1 150px}
      .meta-strip{grid-template-columns:1fr}
      .entry-card{
        grid-template-columns:1fr;
        padding:16px;
      }
      .entry-cover{min-height:132px}
      .entry-meta{align-items:flex-start;flex-direction:column}
      .feature-strip{grid-template-columns:1fr}
      .side-stack{grid-template-columns:1fr}
      .process-grid{grid-template-columns:1fr}
      .recommend-wrap{
        overflow-x:auto;
        padding-bottom:8px;
        scrollbar-width:thin;
      }
      .recommend-track{
        min-width:760px;
        grid-template-columns:repeat(4,1fr);
      }
      .footer-grid{grid-template-columns:1fr}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }
    @media (max-width:520px){
      .container{padding-left:18px;padding-right:18px}
      .brand-wrap{min-width:0}
      .brand-sub{font-size:11px}
      .nav-actions .btn{
        flex:1 1 0;
        padding-left:12px;
        padding-right:12px;
      }
      .channel-link{padding:8px 12px;font-size:13px}
      .filter-bar{border-radius:20px}
      .cta-card{padding:24px 20px;border-radius:24px}
      .cta-card h2{font-size:24px}
      .cta-actions .btn{width:100%}
      .accordion-button{padding:17px 18px}
      .accordion-body{padding:0 18px 18px}
    }
    @media (max-width:420px){
      h1{font-size:30px}
      .hero-actions .btn{width:100%;flex-basis:100%}
      .meta-card{min-height:auto}
      .search-control{min-height:46px}
      .entry-title{font-size:19px}
    }