/* roulang page: index */
:root{
      --bg:#0b0f14;
      --bg-soft:#101720;
      --panel:#111a24;
      --panel-2:#0f1720;
      --line:#253241;
      --line-soft:#1d2733;
      --text:#edf3f7;
      --muted:#9cadb9;
      --faint:#6f7f8a;
      --accent:#31c4b1;
      --accent-2:#7ad9cf;
      --accent-soft:rgba(49,196,177,.14);
      --warm:#d7c48d;
      --shadow:0 18px 50px rgba(0,0,0,.28);
      --shadow-soft:0 10px 24px rgba(0,0,0,.18);
      --radius:8px;
      --radius-sm:6px;
      --gap:clamp(1rem, 2vw, 1.5rem);
      --container:1240px;
      --nav-h:76px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:
        linear-gradient(180deg, rgba(16,23,32,.98) 0%, rgba(11,15,20,1) 52%, rgba(11,15,20,1) 100%);
      color:var(--text);
      font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
      line-height:1.6;
      letter-spacing:0;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      padding-bottom:0;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
      background-size:42px 42px;
      opacity:.2;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.18), rgba(0,0,0,0));
    }
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    .skip-link{
      position:absolute;
      left:-999px;
      top:auto;
      width:1px;
      height:1px;
      overflow:hidden;
    }
    .skip-link:focus{
      left:1rem;
      top:1rem;
      width:auto;
      height:auto;
      padding:.75rem 1rem;
      background:var(--panel);
      border:1px solid var(--accent);
      border-radius:var(--radius-sm);
      z-index:9999;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      transition:background .25s ease, box-shadow .25s ease, border-color .25s ease;
      border-bottom:1px solid rgba(255,255,255,.08);
      background:rgba(11,15,20,.42);
      backdrop-filter:blur(14px);
      -webkit-backdrop-filter:blur(14px);
    }
    .site-header.is-scrolled{
      background:rgba(11,15,20,.94);
      box-shadow:0 10px 24px rgba(0,0,0,.18);
      border-bottom-color:rgba(255,255,255,.06);
    }
    .topbar{
      max-width:var(--container);
      margin:0 auto;
      min-height:var(--nav-h);
      padding:.8rem 1rem;
      display:flex;
      align-items:center;
      gap:1rem;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:.7rem;
      min-width:max-content;
      font-weight:800;
      letter-spacing:0;
      color:var(--text);
    }
    .brand-mark{
      width:2.25rem;
      height:2.25rem;
      border-radius:7px;
      background:
        linear-gradient(135deg, rgba(49,196,177,.95), rgba(122,217,207,.56));
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.24), 0 8px 18px rgba(49,196,177,.18);
      position:relative;
      flex:none;
    }
    .brand-mark::before,
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:0;
      margin:auto;
      background:rgba(11,15,20,.78);
      border-radius:999px;
    }
    .brand-mark::before{width:1rem;height:1rem;opacity:.85}
    .brand-mark::after{width:.34rem;height:.34rem;background:rgba(237,243,247,.96)}
    .brand span{
      font-size:1rem;
      white-space:nowrap;
    }
    .nav-wrap{
      margin-left:auto;
      display:flex;
      align-items:center;
      gap:1rem;
      min-width:0;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:.45rem;
      flex-wrap:nowrap;
      overflow:auto;
      scrollbar-width:none;
      padding-bottom:.1rem;
    }
    .nav-links::-webkit-scrollbar{display:none}
    .nav-links a{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.62rem .9rem;
      color:var(--muted);
      border:1px solid transparent;
      border-radius:7px;
      transition:background .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
      white-space:nowrap;
      font-size:.95rem;
    }
    .nav-links a:hover,
    .nav-links a:focus-visible{
      color:var(--text);
      border-color:rgba(49,196,177,.28);
      background:rgba(49,196,177,.08);
      outline:none;
    }
    .nav-links a.active{
      color:var(--text);
      background:rgba(49,196,177,.12);
      border-color:rgba(49,196,177,.26);
      box-shadow:inset 0 0 0 1px rgba(255,255,255,.03);
    }
    .nav-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.45rem;
      padding:.62rem 1rem;
      border-radius:7px;
      border:1px solid rgba(49,196,177,.28);
      background:linear-gradient(180deg, rgba(49,196,177,.18), rgba(49,196,177,.08));
      color:var(--text);
      transition:transform .2s ease, background .2s ease, box-shadow .2s ease, border-color .2s ease;
      white-space:nowrap;
      font-weight:700;
    }
    .nav-btn:hover,
    .nav-btn:focus-visible{
      transform:translateY(-1px);
      border-color:rgba(122,217,207,.46);
      background:rgba(49,196,177,.16);
      box-shadow:0 10px 24px rgba(49,196,177,.12);
      outline:none;
    }
    .page-shell{
      position:relative;
      overflow:hidden;
    }
    .hero{
      position:relative;
      min-height:calc(100vh - var(--nav-h));
      display:flex;
      align-items:center;
      padding:clamp(2rem, 4vw, 4rem) 0 2rem;
      overflow:hidden;
      border-bottom:1px solid rgba(255,255,255,.06);
      background:
        radial-gradient(circle at 12% 18%, rgba(49,196,177,.16), transparent 28%),
        radial-gradient(circle at 84% 10%, rgba(215,196,141,.10), transparent 24%),
        linear-gradient(180deg, rgba(16,23,32,.76), rgba(11,15,20,.88));
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:auto 0 -1px 0;
      height:2.5rem;
      background:linear-gradient(180deg, rgba(11,15,20,0), rgba(11,15,20,.95));
      pointer-events:none;
    }
    .hero .grid-container{
      position:relative;
      z-index:1;
      width:100%;
    }
    .hero-grid{
      align-items:center;
      gap:2rem;
    }
    .hero-copy{
      padding:1rem 0;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:.5rem;
      font-size:.84rem;
      letter-spacing:0;
      color:var(--accent-2);
      text-transform:none;
      margin-bottom:.9rem;
    }
    .eyebrow::before{
      content:"";
      width:.8rem;
      height:.8rem;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 6px rgba(49,196,177,.12);
    }
    h1,h2,h3,h4,p,li,dl,dt,dd{
      margin-top:0;
      letter-spacing:0;
    }
    h1{
      font-size:clamp(2.2rem, 4vw, 4.2rem);
      line-height:1.08;
      margin:0 0 1rem;
      max-width:12ch;
      text-wrap:balance;
    }
    .hero p.lead{
      font-size:1.04rem;
      color:var(--muted);
      max-width:42rem;
      margin:0 0 1.4rem;
    }
    .badge-row{
      display:flex;
      flex-wrap:wrap;
      gap:.5rem;
      margin:0 0 1.4rem;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:.45rem;
      padding:.45rem .7rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.09);
      background:rgba(255,255,255,.03);
      color:#dce7ee;
      font-size:.86rem;
      line-height:1.1;
      white-space:nowrap;
    }
    .badge i{font-size:.9rem;color:var(--accent)}
    .hero-search{
      display:flex;
      gap:.6rem;
      align-items:center;
      max-width:42rem;
      margin:0 0 1.1rem;
      padding:.55rem;
      border-radius:10px;
      border:1px solid rgba(255,255,255,.09);
      background:rgba(255,255,255,.03);
      box-shadow:var(--shadow-soft);
    }
    .hero-search input{
      flex:1;
      min-width:0;
      background:transparent;
      color:var(--text);
      border:0;
      outline:none;
      padding:.8rem .2rem .8rem .5rem;
      font-size:.98rem;
    }
    .hero-search input::placeholder{color:#7f919f}
    .hero-search button,
    .btn,
    .button{
      border:0;
      border-radius:7px;
      cursor:pointer;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
      letter-spacing:0;
    }
    .hero-search button{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.我已经接上现有稿子的尾巴，不重起头，直接把样式和页面主体补完整。现在会把首屏、轮播、系统要求、评价墙、资讯区、FAQ 和下载区串起来，并把页脚和结构化数据一起收口。display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:.45rem;
      padding:.72rem 1rem;
      border-radius:7px;
      background:linear-gradient(180deg, rgba(49,196,177,.94), rgba(28,162,148,.98));
      color:#081014;
      font-weight:800;
      box-shadow:0 10px 24px rgba(49,196,177,.18);
      text-decoration:none;
      white-space:nowrap;
    }
    .hero-search button:hover,
    .btn:hover,
    .button:hover{
      transform:translateY(-1px);
      box-shadow:0 14px 30px rgba(0,0,0,.24);
    }
    .hero-search button:focus-visible,
    .btn:focus-visible,
    .button:focus-visible,
    .nav-btn:focus-visible,
    .carousel-control:focus-visible,
    .carousel-dot:focus-visible,
    .faq-item summary:focus-visible{
      outline:2px solid var(--accent);
      outline-offset:2px;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:.7rem;
      align-items:center;
      margin-bottom:1rem;
    }
    .btn-secondary{
      background:rgba(255,255,255,.03);
      color:var(--text);
      border:1px solid rgba(255,255,255,.11);
      box-shadow:none;
    }
    .btn-secondary:hover{background:rgba(255,255,255,.06)}
    .mini-stats{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:.8rem;
      margin-top:1rem;
      max-width:44rem;
    }
    .mini-stat{
      padding:.95rem 1rem;
      border:1px solid rgba(255,255,255,.08);
      border-radius:8px;
      background:rgba(255,255,255,.03);
    }
    .mini-stat strong{
      display:block;
      font-size:1.2rem;
      margin-bottom:.2rem;
      color:#fff;
    }
    .mini-stat span{
      display:block;
      color:var(--muted);
      font-size:.88rem;
    }
    .hero-visual{
      position:relative;
      min-height:38rem;
      padding:1rem 0;
    }
    .visual-frame{
      position:relative;
      height:100%;
      min-height:34rem;
      border-radius:18px;
      border:1px solid rgba(255,255,255,.09);
      background:
        linear-gradient(180deg, rgba(17,26,36,.92), rgba(11,15,20,.76));
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .visual-frame::before{
      content:"";
      position:absolute;
      inset:1rem;
      border:1px solid rgba(255,255,255,.05);
      border-radius:14px;
      pointer-events:none;
    }
    .hero-art{
      position:absolute;
      inset:0;
      width:100%;
      height:100%;
      opacity:.98;
    }
    .hero-floating{
      position:absolute;
      left:1rem;
      right:1rem;
      bottom:1rem;
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:.6rem;
    }
    .floating-card{
      padding:.85rem .95rem;
      border-radius:8px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(15,23,32,.82);
      box-shadow:0 8px 18px rgba(0,0,0,.18);
    }
    .floating-card small{
      display:block;
      color:var(--accent-2);
      margin-bottom:.3rem;
      letter-spacing:0;
    }
    .floating-card strong{
      display:block;
      font-size:.94rem;
      color:var(--text);
      line-height:1.25;
    }
    .section{
      padding:clamp(2.2rem, 4vw, 4.2rem) 0;
      position:relative;
    }
    .section.tight{
      padding-top:1.6rem;
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      gap:1rem;
      align-items:end;
      margin-bottom:1.3rem;
    }
    .section-head h2{
      font-size:clamp(1.5rem, 2.2vw, 2.15rem);
      line-height:1.15;
      margin:0;
    }
    .section-head p{
      color:var(--muted);
      max-width:42rem;
      margin:0;
      font-size:.98rem;
    }
    .surface{
      border:1px solid rgba(255,255,255,.08);
      border-radius:12px;
      background:rgba(255,255,255,.03);
      box-shadow:var(--shadow-soft);
    }
    .feature-row{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:.85rem;
    }
    .feature{
      padding:1rem 1rem 1.05rem;
      border:1px solid rgba(255,255,255,.08);
      border-radius:8px;
      background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
      min-height:9rem;
    }
    .feature .icon{
      width:2.2rem;
      height:2.2rem;
      border-radius:7px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(49,196,177,.12);
      color:var(--accent);
      margin-bottom:.8rem;
      border:1px solid rgba(49,196,177,.2);
    }
    .feature h3{
      margin:0 0 .35rem;
      font-size:1.02rem;
      line-height:1.25;
    }
    .feature p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
    }
    .carousel-wrap{
      position:relative;
      overflow:hidden;
    }
    .carousel-head{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:1rem;
      margin-bottom:1rem;
    }
    .carousel-controls{
      display:flex;
      gap:.5rem;
      align-items:center;
    }
    .carousel-control{
      width:2.4rem;
      height:2.4rem;
      border-radius:7px;
      border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.04);
      color:var(--text);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      cursor:pointer;
      transition:background .2s ease, transform .2s ease, border-color .2s ease;
    }
    .carousel-control:hover{
      transform:translateY(-1px);
      background:rgba(49,196,177,.08);
      border-color:rgba(49,196,177,.22);
    }
    .carousel-track{
      display:grid;
      grid-auto-flow:column;
      grid-auto-columns:minmax(80%, 1fr);
      gap:1rem;
      overflow-x:auto;
      scroll-snap-type:x proximity;
      padding-bottom:.4rem;
      scrollbar-width:thin;
      scrollbar-color:rgba(49,196,177,.45) transparent;
    }
    .carousel-track::-webkit-scrollbar{height:.5rem}
    .carousel-track::-webkit-scrollbar-thumb{background:rgba(49,196,177,.4);border-radius:999px}
    .shot{
      scroll-snap-align:start;
      overflow:hidden;
      border-radius:12px;
      border:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(18,26,36,.92), rgba(12,18,24,.92));
      box-shadow:var(--shadow-soft);
      min-height:26rem;
      position:relative;
    }
    .shot svg{
      width:100%;
      height:20rem;
      display:block;
      background:#0f1620;
      border-bottom:1px solid rgba(255,255,255,.07);
    }
    .shot .shot-meta{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:1rem;
      padding:1rem 1rem 1.1rem;
    }
    .shot .shot-meta strong{
      font-size:1rem;
    }
    .shot .shot-meta span{
      color:var(--muted);
      font-size:.88rem;
    }
    .carousel-dots{
      display:flex;
      gap:.45rem;
      margin-top:1rem;
    }
    .carousel-dot{
      width:.72rem;
      height:.72rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.18);
      background:rgba(255,255,255,.14);
      cursor:pointer;
      transition:transform .2s ease, background .2s ease, width .2s ease;
    }
    .carousel-dot.is-active{
      background:var(--accent);
      width:1.35rem;
      border-color:rgba(49,196,177,.35);
    }
    .meta-panel{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:1rem;
      align-items:start;
    }
    .info-list{
      display:grid;
      gap:.7rem;
    }
    .info-item{
      display:grid;
      grid-template-columns:auto 1fr;
      gap:.8rem;
      align-items:start;
      padding:.9rem 1rem;
      border-radius:8px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.07);
    }
    .info-item .icon{
      width:1.85rem;
      height:1.85rem;
      border-radius:7px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:rgba(49,196,177,.12);
      color:var(--accent);
      margin-top:.1rem;
      flex:none;
    }
    .info-item h3{
      margin:0 0 .2rem;
      font-size:.98rem;
    }
    .info-item p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
    }
    .req-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:.85rem;
    }
    .req-card{
      padding:1rem;
      border-radius:8px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      min-height:8rem;
    }
    .req-card .label{
      display:flex;
      align-items:center;
      gap:.45rem;
      color:var(--accent-2);
      font-size:.84rem;
      margin-bottom:.55rem;
    }
    .req-card h3{
      margin:0 0 .35rem;
      font-size:1rem;
    }
    .req-card p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
    }
    .news-layout{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:1rem;
      align-items:start;
    }
    .news-list{
      padding:0;
      margin:0;
      list-style:none;
      border:1px solid rgba(255,255,255,.08);
      border-radius:12px;
      overflow:hidden;
      background:rgba(255,255,255,.03);
    }
    .news-list li + li{border-top:1px solid rgba(255,255,255,.06)}
    .news-list a{
      display:grid;
      grid-template-columns:auto 1fr auto;
      gap:.8rem;
      padding:1rem;
      align-items:center;
      color:var(--text);
      transition:background .2s ease;
    }
    .news-list a:hover{background:rgba(49,196,177,.06)}
    .news-bullet{
      width:.65rem;
      height:.65rem;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 6px rgba(49,196,177,.12);
      margin-left:.2rem;
    }
    .news-list strong{
      display:block;
      margin-bottom:.15rem;
      font-size:.98rem;
      line-height:1.35;
    }
    .news-list span{
      color:var(--muted);
      font-size:.9rem;
    }
    .news-side{
      display:grid;
      gap:.85rem;
    }
    .tip-card{
      padding:1rem;
      border:1px solid rgba(255,255,255,.08);
      border-radius:12px;
      background:rgba(255,255,255,.03);
    }
    .tip-card h3{
      margin:0 0 .45rem;
      font-size:1rem;
    }
    .tip-card p{
      margin:0;color:var(--muted);font-size:.93rem}
    .tip-card .tag-list{
      display:flex;
      flex-wrap:wrap;
      gap:.45rem;
      margin-top:.8rem;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:.35rem;
      padding:.34rem .62rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.09);
      background:rgba(255,255,255,.03);
      color:var(--muted);
      font-size:.84rem;
      white-space:nowrap;
    }
    .tag i{color:var(--accent-2)}
    .list-grid{
      display:grid;
      gap:.9rem;
    }
    .list-card{
      display:grid;
      grid-template-columns:1fr auto;
      gap:.85rem;
      align-items:start;
      padding:1rem;
      border-radius:12px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-soft);
    }
    .list-card h3{
      margin:0 0 .35rem;
      font-size:1rem;
      line-height:1.3;
    }
    .list-card p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
    }
    .list-card .meta{
      display:flex;
      flex-wrap:wrap;
      gap:.5rem;
      margin-top:.65rem;
      color:var(--faint);
      font-size:.84rem;
    }
    .list-card .action{
      align-self:center;
    }
    .action-link{
      display:inline-flex;
      align-items:center;
      gap:.4rem;
      padding:.5rem .78rem;
      border-radius:7px;
      border:1px solid rgba(49,196,177,.24);
      color:var(--text);
      background:rgba(49,196,177,.08);
      white-space:nowrap;
    }
    .action-link:hover{background:rgba(49,196,177,.14)}
    .review-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:.9rem;
    }
    .review-card{
      padding:1rem;
      border-radius:10px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      box-shadow:var(--shadow-soft);
      min-height:11rem;
    }
    .review-top{
      display:flex;
      justify-content:space-between;
      gap:.8rem;
      align-items:center;
      margin-bottom:.75rem;
    }
    .review-name{
      font-weight:700;
      font-size:.96rem;
    }
    .stars{
      color:var(--warm);
      letter-spacing:.06rem;
      font-size:.84rem;
      white-space:nowrap;
    }
    .review-card p{
      margin:0 0 .75rem;
      color:#d8e3ea;
      font-size:.94rem;
      line-height:1.55;
    }
    .review-foot{
      display:flex;
      justify-content:space-between;
      gap:.8rem;
      align-items:center;
      color:var(--faint);
      font-size:.82rem;
    }
    .faq-list{
      display:grid;
      gap:.8rem;
    }
    .faq-item{
      border:1px solid rgba(255,255,255,.08);
      border-radius:10px;
      background:rgba(255,255,255,.03);
      overflow:hidden;
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:1rem 1rem;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:1rem;
      font-weight:700;
      color:var(--text);
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";
      color:var(--accent-2);
      font-size:1.1rem;
      line-height:1;
    }
    .faq-item[open] summary{
      border-bottom:1px solid rgba(255,255,255,.06);
      background:rgba(49,196,177,.06);
    }
    .faq-item[open] summary::after{content:"–"}
    .faq-item .answer{
      padding:0 1rem 1rem;
      color:var(--muted);
      font-size:.95rem;
    }
    .download-panel{
      display:grid;
      grid-template-columns:1fr auto;
      gap:1rem;
      align-items:center;
      padding:1.2rem;
      border-radius:14px;
      border:1px solid rgba(49,196,177,.18);
      background:
        linear-gradient(180deg, rgba(49,196,177,.08), rgba(255,255,255,.03));
      box-shadow:var(--shadow);
    }
    .download-panel h2{
      margin:0 0 .45rem;
      font-size:1.65rem;
      line-height:1.2;
    }
    .download-panel p{
      margin:0;
      color:var(--muted);
      max-width:42rem;
    }
    .download-buttons{
      display:flex;
      flex-wrap:wrap;
      gap:.65rem;
      justify-content:flex-end;
    }
    .download-buttons .button,
    .download-buttons .btn{
      padding:.78rem 1rem;
      display:inline-flex;
      align-items:center;
      gap:.5rem;
      font-weight:800;
    }
    .download-buttons .btn-secondary{
      border-color:rgba(255,255,255,.12);
    }
    .footer{
      padding:2rem 0 5rem;
      border-top:1px solid rgba(255,255,255,.06);
      background:linear-gradient(180deg, rgba(12,17,23,0), rgba(12,17,23,.95));
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .9fr .9fr;
      gap:1rem;
      padding-top:1rem;
    }
    .footer-block{
      padding:0;
    }
    .footer h3{
      margin:0 0 .75rem;
      font-size:1rem;
    }
    .footer p,
    .footer li{
      color:var(--muted);
      font-size:.92rem;
    }
    .footer ul{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:.5rem;
    }
    .footer a{
      color:var(--muted);
      transition:color .2s ease;
    }
    .footer a:hover,
    .footer a:focus-visible{color:var(--text);outline:none}
    .footer-note{
      margin-top:1rem;
      padding-top:1rem;
      border-top:1px solid rgba(255,255,255,.06);
      color:var(--faint);
      font-size:.86rem;
      display:flex;
      flex-wrap:wrap;
      gap:.8rem;
      justify-content:space-between;
      align-items:center;
    }
    .mobile-cta{
      position:fixed;
      left:0;
      right:0;
      bottom:0;
      z-index:999;
      display:none;
      padding:.7rem .8rem;
      background:rgba(11,15,20,.92);
      border-top:1px solid rgba(255,255,255,.08);
      backdrop-filter:blur(14px);
      -webkit-backdrop-filter:blur(14px);
    }
    .mobile-cta .wrap{
      display:flex;
      gap:.6rem;
    }
    .mobile-cta .btn{
      flex:1;
      justify-content:center;
      padding:.82rem .9rem;
    }
    .section-subtle{
      color:var(--muted);
      max-width:44rem;
      margin-top:.35rem;
      font-size:.97rem;
    }
    .state-strip{
      display:flex;
      flex-wrap:wrap;
      gap:.55rem;
      margin-top:.9rem;
    }
    .state{
      padding:.42rem .7rem;
      border-radius:999px;
      border:1px solid rgba(255,255,255,.08);
      background:rgba(255,255,255,.03);
      color:var(--muted);
      font-size:.84rem;
    }
    .state strong{color:var(--text)}
    .spacer-line{
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(255,255,255,.1), transparent);
      margin:1.1rem 0;
    }
    .filters{
      display:flex;
      flex-wrap:wrap;
      gap:.55rem;
      margin-bottom:1rem;
    }
    .filter-chip{
      border:1px solid rgba(255,255,255,.09);
      background:rgba(255,255,255,.03);
      color:var(--muted);
      border-radius:999px;
      padding:.42rem .72rem;
      font-size:.84rem;
      cursor:pointer;
      transition:background .2s ease, color .2s ease, border-color .2s ease;
    }
    .filter-chip.is-active,
    .filter-chip:hover{
      background:rgba(49,196,177,.12);
      color:var(--text);
      border-color:rgba(49,196,177,.22);
    }
    .search-row{
      display:grid;
      grid-template-columns:1fr auto;
      gap:.7rem;
      align-items:center;
      padding:.85rem;
      border:1px solid rgba(255,255,255,.08);
      border-radius:10px;
      background:rgba(255,255,255,.03);
      margin-bottom:1rem;
    }
    .search-row input{
      width:100%;
      border:0;
      outline:none;
      background:transparent;
      color:var(--text);
      padding:.45rem .2rem;
    }
    .search-row input::placeholder{color:#7f919f}
    .search-row .button{
      padding:.72rem .95rem;
      background:rgba(49,196,177,.9);
      color:#081014;
      font-weight:800;
    }
    .section-band{
      padding:1rem 0 0;
    }
    .cta-line{
      display:flex;
      flex-wrap:wrap;
      gap:.6rem;
      margin-top:1rem;
    }
    .cta-line .button,
    .cta-line .btn{
      padding:.74rem .96rem;
      font-weight:800;
    }
    .small-note{
      color:var(--faint);
      font-size:.84rem;
      margin-top:.7rem;
    }
    .visual-overlay{
      position:absolute;
      inset:0;
      background:
        linear-gradient(180deg, rgba(11,15,20,.08), rgba(11,15,20,.42) 72%, rgba(11,15,20,.82));
      pointer-events:none;
    }
    .hero-art text{
      font-family:"Inter","PingFang SC","Microsoft YaHei",sans-serif;
      letter-spacing:0;
    }
    .hero-art .panel{
      fill:#111a24;
      stroke:#2b3948;
      stroke-width:1;
    }
    .hero-art .panel-soft{
      fill:#0f1720;
      stroke:#243140;
      stroke-width:1;
    }
    .hero-art .accent{
      fill:#31c4b1;
    }
    .hero-art .accent-soft{
      fill:#2fd0bb;
      opacity:.16;
    }
    .hero-art .line{
      stroke:#2e3d4f;
      stroke-width:1;
    }
    .hero-art .line-accent{
      stroke:#31c4b1;
      stroke-width:2;
    }
    .hero-art .text-main{
      fill:#edf3f7;
      font-size:18px;
      font-weight:700;
    }
    .hero-art .text-sub{
      fill:#9cadb9;
      font-size:12px;
    }
    .hero-art .num{
      fill:#edf3f7;
      font-size:30px;
      font-weight:800;
    }
    .hero-art .chip{
      fill:#0b0f14;
      stroke:#2f4351;
      stroke-width:1;
    }
    .hero-art .chip-text{
      fill:#d8e3ea;
      font-size:11px;
      font-weight:700;
    }
    .shot .label{
      position:absolute;
      top:1rem;
      left:1rem;
      padding:.35rem .55rem;
      border-radius:999px;
      font-size:.78rem;
      color:#dff6f2;
      background:rgba(49,196,177,.12);
      border:1px solid rgba(49,196,177,.2);
    }
    @media screen and (max-width: 1024px){
      .hero{
        min-height:auto;
      }
      .hero-grid,
      .meta-panel,
      .news-layout,
      .download-panel,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .hero-visual{
        min-height:28rem;
      }
      .feature-row,
      .review-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .topbar{
        gap:.65rem;
      }
      .nav-wrap{
        gap:.75rem;
      }
    }
    @media screen and (max-width: 768px){
      .topbar{
        flex-wrap:wrap;
        padding:.8rem .9rem;
      }
      .nav-wrap{
        width:100%;
        justify-content:space-between;
      }
      .nav-links{
        max-width:100%;
      }
      .hero{
        padding-top:1.4rem;
      }
      h1{
        max-width:none;
        font-size:clamp(1.95rem, 10vw, 2.85rem);
      }
      .hero-search,
      .search-row{
        grid-template-columns:1fr;
        display:grid;
      }
      .hero-search button,
      .search-row .button{
        width:100%;
      }
      .mini-stats,
      .feature-row,
      .req-grid,
      .review-grid{
        grid-template-columns:1fr;
      }
      .hero-floating{
        grid-template-columns:1fr;
      }
      .download-buttons{
        justify-content:flex-start;
      }
      .mobile-cta{
        display:block;
      }
      .footer-note{
        flex-direction:column;
        align-items:flex-start;
      }
      .carousel-track{
        grid-auto-columns:90%;
      }
    }
    @media screen and (max-width: 520px){
      .topbar{
        min-height:auto;
      }
      .brand span{
        font-size:.96rem;
      }
      .nav-links a,
      .nav-btn{
        padding:.52rem .75rem;
        font-size:.88rem;
      }
      .section{
        padding:1.9rem 0;
      }
      .shot{
        min-height:22rem;
      }
      .shot svg{
        height:16rem;
      }
      .download-panel{
        padding:1rem;
      }
      .download-panel h2{
        font-size:1.35rem;
      }
      .download-buttons .button,
      .download-buttons .btn{
        width:100%;
        justify-content:center;
      }
      .list-card{
        grid-template-columns:1fr;
      }
    }

/* roulang page: category1 */
:root {
      --ink: #161a1d;
      --ink-soft: #3b4348;
      --muted: #68747c;
      --line: rgba(22, 26, 29, 0.12);
      --line-strong: rgba(22, 26, 29, 0.18);
      --bg: #f6f7f4;
      --surface: #ffffff;
      --surface-soft: #eef2ee;
      --accent: #0f8f7e;
      --accent-dark: #087466;
      --accent-soft: #dff4ef;
      --amber: #b78131;
      --amber-soft: #f4ead8;
      --graphite: #20272b;
      --white: #ffffff;
      --shadow-sm: 0 10px 28px rgba(22, 26, 29, 0.08);
      --shadow-md: 0 18px 48px rgba(22, 26, 29, 0.14);
      --radius: 8px;
      --radius-sm: 6px;
      --header-h: 76px;
      --space: 96px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      color: var(--ink);
      background: var(--bg);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
      line-height: 1.7;
      text-rendering: optimizeLegibility;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
    }

    img {
      max-width: 100%;
      display: block;
    }

    button,
    input {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    input:focus,
    button:focus,
    a:focus {
      outline: 3px solid rgba(15, 143, 126, 0.22);
      outline-offset: 3px;
    }

    .grid-container {
      max-width: 1180px;
      padding-left: 22px;
      padding-right: 22px;
    }

    .site-header {
      position: fixed;
      z-index: 50;
      top: 18px;
      left: 0;
      width: 100%;
      pointer-events: none;
      transition: top 0.25s ease;
    }

    .topbar {
      width: min(1180px, calc(100% - 44px));
      margin: 0 auto;
      min-height: 58px;
      padding: 10px 12px 10px 16px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      border: 1px solid rgba(255, 255, 255, 0.46);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.72);
      box-shadow: var(--shadow-sm);
      backdrop-filter: blur(18px);
      pointer-events: auto;
    }

    .site-header.is-solid {
      top: 0;
    }

    .site-header.is-solid .topbar {
      width: 100%;
      max-width: none;
      border-radius: 0;
      border-left: 0;
      border-right: 0;
      background: rgba(255, 255, 255, 0.94);
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: 0;
      font-weight: 800;
      color: var(--ink);
      letter-spacing: 0;
      white-space: nowrap;
    }

    .brand-mark {
      width: 30px;
      height: 30px;
      border-radius: 7px;
      display: inline-block;
      background:
        linear-gradient(135deg, rgba(15, 143, 126, 0.96), rgba(32, 39, 43, 0.96)),
        repeating-linear-gradient(90deg, transparent 0 6px, rgba(255, 255, 255, 0.22) 6px 8px);
      box-shadow: inset 0 0 0 1px rgba(255,255,255,0.25);
      flex: 0 0 auto;
    }

    .nav-wrap,
    .nav-links {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .nav-links a {
      padding: 9px 12px;
      border-radius: var(--radius-sm);
      color: var(--ink-soft);
      font-size: 14px;
      font-weight: 700;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--accent-dark);
      background: rgba(15, 143, 126, 0.1);
    }

    .nav-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 40px;
      padding: 9px 14px;
      border-radius: var(--radius-sm);
      color: var(--white);
      background: var(--graphite);
      font-size: 14px;
      font-weight: 800;
      box-shadow: 0 10px 24px rgba(32, 39, 43, 0.18);
    }

    .nav-btn:hover {
      color: var(--white);
      background: var(--accent-dark);
      transform: translateY(-1px);
    }

    .hero {
      min-height: 86vh;
      padding: 132px 0 70px;
      position: relative;
      overflow: hidden;
      background:
        linear-gradient(90deg, rgba(246,247,244,0.96) 0%, rgba(246,247,244,0.82) 46%, rgba(246,247,244,0.52) 100%),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1400' height='900' viewBox='0 0 1400 900'%3E%3Crect width='1400' height='900' fill='%23dfe6e0'/%3E%3Cg opacity='.85'%3E%3Crect x='760' y='92' width='430' height='590' rx='16' fill='%23ffffff'/%3E%3Crect x='806' y='146' width='286' height='18' rx='9' fill='%23161a1d'/%3E%3Crect x='806' y='196' width='322' height='10' rx='5' fill='%2368747c'/%3E%3Crect x='806' y='222' width='236' height='10' rx='5' fill='%23899798'/%3E%3Crect x='806' y='280' width='320' height='62' rx='10' fill='%23dff4ef'/%3E%3Crect x='806' y='372' width='320' height='62' rx='10' fill='%23f4ead8'/%3E%3Crect x='806' y='464' width='320' height='62' rx='10' fill='%23eef2ee'/%3E%3Crect x='1210' y='186' width='105' height='380' rx='12' fill='%2320272b'/%3E%3Crect x='1232' y='222' width='61' height='12' rx='6' fill='%23dff4ef'/%3E%3Crect x='1232' y='262' width='46' height='8' rx='4' fill='%23ffffff' opacity='.7'/%3E%3Crect x='1232' y='292' width='55' height='8' rx='4' fill='%23ffffff' opacity='.4'/%3E%3Crect x='1232' y='442' width='62' height='62' rx='8' fill='%230f8f7e'/%3E%3C/g%3E%3C/svg%3E") center right / cover no-repeat;
    }

    .hero:after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 0;
      height: 110px;
      background: linear-gradient(180deg, rgba(246,247,244,0), var(--bg));
      pointer-events: none;
    }

    .hero-layout {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.78fr);
      gap: 48px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 10px;
      border: 1px solid var(--line);
      border-radius: 999px;
      background: rgba(255,255,255,0.72);
      color: var(--accent-dark);
      font-size: 13px;
      font-weight: 800;
    }

    .eyebrow:before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 5px rgba(15, 143, 126, 0.12);
    }

    h1,
    h2,
    h3 {
      margin: 0;
      line-height: 1.18;
      letter-spacing: 0;
      color: var(--ink);
    }

    h1 {
      margin-top: 20px;
      max-width: 660px;
      font-size: 52px;
      font-weight: 900;
    }

    .hero-sub {
      margin: 20px 0 0;
      max-width: 640px;
      color: var(--ink-soft);
      font-size: 18px;
    }

    .hero-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 24px 0 0;
    }

    .tag,
    .chip,
    .status {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
      white-space: nowrap;
    }

    .tag {
      padding: 8px 11px;
      border: 1px solid rgba(15, 143, 126, 0.22);
      background: var(--accent-soft);
      color: var(--accent-dark);
    }

    .hero-actions,
    .download-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 30px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 12px 18px;
      border: 1px solid transparent;
      border-radius: var(--radius);
      font-weight: 850;
      line-height: 1;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    }

    .btn-primary {
      color: var(--white);
      background: var(--accent-dark);
      box-shadow: 0 16px 32px rgba(15, 143, 126, 0.24);
    }

    .btn-primary:hover {
      color: var(--white);
      background: #065f55;
      transform: translateY(-2px);
      box-shadow: 0 20px 40px rgba(15, 143, 126, 0.28);
    }

    .btn-secondary {
      color: var(--ink);
      background: rgba(255,255,255,0.82);
      border-color: var(--line-strong);
    }

    .btn-secondary:hover {
      color: var(--accent-dark);
      border-color: rgba(15, 143, 126, 0.42);
      background: var(--white);
      transform: translateY(-2px);
    }

    .lead-panel {
      border: 1px solid rgba(255,255,255,0.62);
      border-radius: var(--radius);
      background: rgba(255,255,255,0.78);
      box-shadow: var(--shadow-md);
      backdrop-filter: blur(16px);
      overflow: hidden;
    }

    .cover-head {
      padding: 24px;
      color: var(--white);
      background:
        linear-gradient(135deg, rgba(32,39,43,0.97), rgba(15,143,126,0.84)),
        linear-gradient(90deg, transparent 0 92%, rgba(255,255,255,0.18) 92% 93%, transparent 93%);
    }

    .cover-head span {
      display: inline-block;
      padding: 5px 9px;
      border-radius: 999px;
      background: rgba(255,255,255,0.14);
      font-size: 12px;
      font-weight: 800;
    }

    .cover-head h2 {
      margin-top: 18px;
      color: var(--white);
      font-size: 30px;
      font-weight: 900;
    }

    .cover-head p {
      margin: 12px 0 0;
      color: rgba(255,255,255,0.82);
      font-size: 14px;
    }

    .catalog {
      padding: 22px 24px;
      display: grid;
      gap: 13px;
    }

    .catalog-row {
      display: grid;
      grid-template-columns: 28px minmax(0, 1fr) auto;
      gap: 12px;
      align-items: center;
      padding-bottom: 13px;
      border-bottom: 1px solid var(--line);
      color: var(--ink-soft);
      font-size: 14px;
      font-weight: 750;
    }

    .catalog-row:last-child {
      padding-bottom: 0;
      border-bottom: 0;
    }

    .catalog-row b {
      color: var(--ink);
      font-size: 13px;
    }

    .catalog-row em {
      font-style: normal;
      color: var(--muted);
      font-size: 12px;
    }

    .lead-form {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 10px;
      padding: 0 24px 24px;
    }

    .lead-form input {
      height: 46px;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius-sm);
      background: var(--white);
      color: var(--ink);
      box-shadow: none;
      margin: 0;
    }

    .lead-form input::placeholder {
      color: #879198;
    }

    .section {
      padding: var(--space) 0;
      position: relative;
    }

    .section.tight {
      padding-top: 56px;
    }

    .section.alt {
      background: var(--surface);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .section-dark {
      background: var(--graphite);
      color: var(--white);
    }

    .section-dark h2,
    .section-dark h3 {
      color: var(--white);
    }

    .section-kicker {
      margin: 0 0 10px;
      color: var(--accent-dark);
      font-size: 13px;
      font-weight: 900;
    }

    .section-dark .section-kicker {
      color: #80dece;
    }

    .section-title {
      max-width: 720px;
      font-size: 34px;
      font-weight: 900;
    }

    .section-copy {
      max-width: 760px;
      margin: 14px 0 0;
      color: var(--muted);
      font-size: 16px;
    }

    .section-dark .section-copy {
      color: rgba(255,255,255,0.68);
    }

    .filter-bar {
      margin-top: 28px;
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      box-shadow: var(--shadow-sm);
    }

    .search-row {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 10px;
      align-items: center;
    }

    .search-row input {
      height: 50px;
      margin: 0;
      border: 1px solid var(--line-strong);
      border-radius: var(--radius-sm);
      background: #fbfcfa;
      box-shadow: none;
    }

    .chips {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
      margin-top: 14px;
    }

    .chip {
      padding: 7px 10px;
      border: 1px solid var(--line);
      background: var(--surface-soft);
      color: var(--ink-soft);
    }

    .chip.is-active,
    .chip:hover {
      border-color: rgba(15, 143, 126, 0.34);
      background: var(--accent-soft);
      color: var(--accent-dark);
    }

    .entry-grid {
      margin-top: 34px;
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .entry-card {
      min-height: 252px;
      padding: 22px;
      display: flex;
      flex-direction: column;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      box-shadow: 0 8px 24px rgba(22, 26, 29, 0.05);
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .entry-card:hover {
      transform: translateY(-3px);
      border-color: rgba(15, 143, 126, 0.34);
      box-shadow: var(--shadow-sm);
    }

    .card-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 18px;
    }

    .icon-box {
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: var(--radius-sm);
      color: var(--accent-dark);
      background: var(--accent-soft);
      flex: 0 0 auto;
    }

    .status {
      padding: 6px 9px;
      color: var(--accent-dark);
      background: rgba(15, 143, 126, 0.1);
    }

    .status.warn {
      color: var(--amber);
      background: var(--amber-soft);
    }

    .entry-card h3 {
      font-size: 21px;
      font-weight: 900;
    }

    .entry-card p {
      margin: 12px 0 0;
      color: var(--muted);
      font-size: 14px;
    }

    .entry-meta {
      margin-top: auto;
      padding-top: 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      border-top: 1px solid var(--line);
      color: var(--muted);
      font-size: 13px;
      font-weight: 750;
    }

    .text-link {
      color: var(--accent-dark);
      font-weight: 900;
    }

    .text-link:hover {
      color: #065f55;
    }

    .requirements-wrap {
      margin-top: 34px;
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 28px;
      align-items: start;
    }

    .require-note {
      padding: 26px;
      border-radius: var(--radius);
      border: 1px solid rgba(255,255,255,0.1);
      background: rgba(255,255,255,0.06);
    }

    .require-note .num {
      display: block;
      margin-bottom: 12px;
      color: #80dece;
      font-size: 44px;
      line-height: 1;
      font-weight: 900;
    }

    .require-table {
      display: grid;
      gap: 0;
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: var(--radius);
      overflow: hidden;
      background: rgba(255,255,255,0.04);
    }

    .require-row {
      display: grid;
      grid-template-columns: 180px minmax(0, 1fr);
      gap: 18px;
      padding: 17px 20px;
      border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .require-row:last-child {
      border-bottom: 0;
    }

    .require-row strong {
      color: var(--white);
    }

    .require-row span {
      color: rgba(255,255,255,0.68);
    }

    .review-grid {
      margin-top: 34px;
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }

    .review-card {
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--surface);
      min-height: 164px;
    }

    .stars {
      color: var(--amber);
      font-size: 12px;
      letter-spacing: 0;
    }

    .review-card p {
      margin: 12px 0;
      color: var(--ink-soft);
      font-size: 14px;
    }

    .review-card small {
      color: var(--muted);
      font-weight: 750;
    }

    .faq-list {
      margin-top: 30px;
      border-top: 1px solid var(--line);
    }

    .faq-item {
      border-bottom: 1px solid var(--line);
    }

    .faq-question {
      width: 100%;
      padding: 22px 0;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      border: 0;
      background: transparent;
      color: var(--ink);
      font-weight: 900;
      text-align: left;
    }

    .faq-question i {
      color: var(--accent-dark);
      transition: transform 0.2s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 0 22px;
      color: var(--muted);
      max-width: 820px;
    }

    .faq-item.is-open .faq-answer {
      display: block;
    }

    .faq-item.is-open .faq-question i {
      transform: rotate(45deg);
    }

    .download-panel {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 28px;
      align-items: center;
      padding: 34px;
      border: 1px solid rgba(255,255,255,0.12);
      border-radius: var(--radius);
      background:
        linear-gradient(135deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03)),
        var(--graphite);
      color: var(--white);
    }

    .download-panel h2 {
      color: var(--white);
      font-size: 32px;
      font-weight: 900;
    }

    .download-panel p {
      margin: 12px 0 0;
      color: rgba(255,255,255,0.68);
    }

    .download-actions {
      margin-top: 0;
      justify-content: flex-end;
    }

    .download-actions .btn-secondary {
      color: var(--white);
      background: rgba(255,255,255,0.08);
      border-color: rgba(255,255,255,0.18);
    }

    .download-actions .btn-secondary:hover {
      color: var(--white);
      border-color: rgba(128,222,206,0.7);
      background: rgba(128,222,206,0.12);
    }

    .footer {
      padding: 62px 0 28px;
      background: #111517;
      color: rgba(255,255,255,0.74);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 0.8fr;
      gap: 36px;
      padding-bottom: 34px;
      border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .footer-block h3 {
      margin: 0 0 14px;
      color: var(--white);
      font-size: 17px;
      font-weight: 900;
    }

    .footer-block p {
      margin: 0;
      max-width: 420px;
      color: rgba(255,255,255,0.62);
      font-size: 14px;
    }

    .footer-block ul {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 9px;
    }

    .footer-block a {
      color: rgba(255,255,255,0.68);
      font-size: 14px;
    }

    .footer-block a:hover {
      color: #80dece;
    }

    .footer-note {
      padding-top: 22px;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      color: rgba(255,255,255,0.46);
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      :root {
        --space: 76px;
      }

      h1 {
        font-size: 42px;
      }

      .hero-layout,
      .requirements-wrap,
      .download-panel {
        grid-template-columns: 1fr;
      }

      .entry-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .review-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .download-actions {
        justify-content: flex-start;
      }
    }

    @media (max-width: 768px) {
      .site-header {
        top: 10px;
      }

      .topbar {
        width: calc(100% - 24px);
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
      }

      .nav-wrap {
        width: 100%;
        justify-content: space-between;
        gap: 10px;
      }

      .nav-links {
        overflow-x: auto;
        padding-bottom: 2px;
      }

      .nav-links a,
      .nav-btn {
        flex: 0 0 auto;
      }

      .hero {
        min-height: auto;
        padding-top: 170px;
      }

      .hero-layout {
        gap: 28px;
      }

      h1 {
        font-size: 34px;
      }

      .hero-sub {
        font-size: 16px;
      }

      .lead-form,
      .search-row {
        grid-template-columns: 1fr;
      }

      .entry-grid,
      .review-grid {
        grid-template-columns: 1fr;
      }

      .require-row {
        grid-template-columns: 1fr;
        gap: 6px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
      }

      .footer-note {
        flex-direction: column;
      }
    }

    @media (max-width: 520px) {
      .grid-container {
        padding-left: 16px;
        padding-right: 16px;
      }

      .brand {
        font-size: 15px;
      }

      .nav-wrap {
        flex-direction: column;
        align-items: stretch;
      }

      .nav-links {
        width: 100%;
      }

      .nav-btn,
      .btn {
        width: 100%;
      }

      .hero {
        padding-top: 205px;
        background-position: 62% center;
      }

      h1 {
        font-size: 30px;
      }

      .section-title,
      .download-panel h2 {
        font-size: 26px;
      }

      .cover-head,
      .catalog,
      .lead-form,
      .entry-card,
      .download-panel {
        padding-left: 18px;
        padding-right: 18px;
      }

      .hero-actions,
      .download-actions {
        width: 100%;
      }
    }