/* roulang page: index */
:root{
      --bg:#07111f;
      --bg2:#0b172b;
      --panel:rgba(12,22,41,.72);
      --panel-strong:rgba(15,28,50,.92);
      --line:rgba(130,190,255,.16);
      --line-strong:rgba(100,192,255,.34);
      --text:#eaf4ff;
      --muted:#95abc8;
      --soft:#bfd0e9;
      --accent:#4dd8ff;
      --accent-2:#7583ff;
      --accent-3:#32e0c4;
      --danger:#ff7d92;
      --shadow:0 24px 60px rgba(2,10,22,.45);
      --radius:20px;
      --radius-sm:16px;
      --radius-xs:12px;
      --container:1280px;
      --gap:24px;
      --nav-h:82px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      background:
        radial-gradient(circle at 18% 12%, rgba(77,216,255,.12), transparent 28%),
        radial-gradient(circle at 82% 8%, rgba(117,131,255,.15), transparent 24%),
        radial-gradient(circle at 70% 68%, rgba(50,224,196,.10), transparent 26%),
        linear-gradient(180deg, #07111f 0%, #081525 38%, #09111d 100%);
      color:var(--text);
      line-height:1.72;
      min-height:100vh;
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(165,206,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(165,206,255,.05) 1px, transparent 1px);
      background-size:42px 42px;
      opacity:.26;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.7), rgba(0,0,0,.2) 50%, rgba(0,0,0,.65));
      z-index:-2;
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(115deg, rgba(255,255,255,.03), transparent 12%, transparent 88%, rgba(255,255,255,.03));
      mix-blend-mode:screen;
      opacity:.2;
      z-index:-1;
    }
    a{
      color:inherit;
      text-decoration:none;
      transition:color .22s ease, opacity .22s ease, transform .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease;
    }
    img{max-width:100%; display:block}
    button,input,textarea{
      font:inherit;
      color:inherit;
    }
    button{
      border:none;
      background:none;
      padding:0;
      cursor:pointer;
    }
    ::selection{background:rgba(77,216,255,.28); color:#fff}
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      backdrop-filter:blur(18px);
      background:linear-gradient(180deg, rgba(6,13,24,.92), rgba(7,17,31,.72));
      border-bottom:1px solid rgba(145,190,255,.1);
      box-shadow:0 10px 40px rgba(0,0,0,.15);
    }
    .header-inner{
      min-height:var(--nav-h);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding:14px 0 10px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(77,216,255,.22), rgba(117,131,255,.2));
      border:1px solid rgba(121,193,255,.34);
      box-shadow:0 0 0 1px rgba(77,216,255,.05) inset, 0 10px 24px rgba(0,0,0,.22), 0 0 36px rgba(77,216,255,.14);
      position:relative;
      overflow:hidden;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      inset:-30%;
      background:radial-gradient(circle, rgba(255,255,255,.42), transparent 52%);
      opacity:.32;
      transform:translateX(-28%);
    }
    .brand-mark svg{
      width:22px;height:22px;
      position:relative;
      z-index:1;
      fill:none;
      stroke:#e9f7ff;
      stroke-width:1.8;
      stroke-linecap:round;
      stroke-linejoin:round;
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-title{
      font-size:1rem;
      font-weight:700;
      letter-spacing:.01em;
    }
    .brand-sub{
      margin-top:5px;
      font-size:.8rem;
      color:var(--muted);
    }
    .nav-shell{
      display:flex;
      align-items:center;
      gap:18px;
      flex:1;
      justify-content:flex-end;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:8px;
      padding:7px;
      border-radius:999px;
      background:rgba(10,20,36,.6);
      border:1px solid rgba(124,187,255,.14);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
    }
    .nav-links a{
      padding:10px 14px;
      border-radius:999px;
      color:var(--soft);
      font-size:.95rem;
      line-height:1;
      white-space:nowrap;
      border:1px solid transparent;
    }
    .nav-links a:hover,
    .nav-links a:focus-visible{
      color:#fff;
      background:rgba(77,216,255,.08);
      border-color:rgba(77,216,255,.18);
      outline:none;
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(77,216,255,.16), rgba(117,131,255,.18));
      border-color:rgba(77,216,255,.24);
      box-shadow:0 8px 24px rgba(20,63,98,.22);
    }
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border-radius:14px;
      align-items:center;
      justify-content:center;
      border:1px solid rgba(124,187,255,.18);
      background:rgba(12,22,41,.65);
      color:#fff;
      box-shadow:var(--shadow);
    }
    .menu-toggle svg{width:20px;height:20px;stroke:currentColor;stroke-width:2;fill:none}
    .header-action{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:44px;
      padding:0 18px;
      border-radius:999px;
      font-weight:600;
      letter-spacing:.01em;
      color:#06111e;
      background:linear-gradient(135deg, #8ff1ff, #7f9bff);
      box-shadow:0 10px 30px rgba(50,160,255,.26), 0 0 30px rgba(77,216,255,.18);
      border:1px solid rgba(255,255,255,.18);
      flex:0 0 auto;
    }
    .header-action:hover,
    .header-action:focus-visible{
      transform:translateY(-1px);
      box-shadow:0 14px 36px rgba(50,160,255,.32), 0 0 42px rgba(77,216,255,.24);
      outline:none;
    }
    .step-nav-wrap{
      padding:0 0 16px;
    }
    .step-nav{
      display:flex;
      align-items:center;
      gap:10px;
      overflow:auto;
      padding:4px 0 2px;
      scrollbar-width:none;
    }
    .step-nav::-webkit-scrollbar{display:none}
    .step-pill{
      position:relative;
      display:inline-flex;
      align-items:center;
      gap:10px;
      min-height:42px;
      padding:11px 15px;
      border-radius:999px;
      white-space:nowrap;
      border:1px solid rgba(124,187,255,.14);
      background:rgba(9,18,31,.56);
      color:var(--muted);
      font-size:.92rem;
      font-weight:600;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
    }
    .step-pill::before{
      content:attr(data-step);
      width:24px;
      height:24px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(124,187,255,.12);
      font-size:.75rem;
      color:#cbe9ff;
      flex:0 0 auto;
    }
    .step-pill:hover,
    .step-pill:focus-visible{
      color:#fff;
      border-color:rgba(77,216,255,.28);
      background:rgba(77,216,255,.08);
      outline:none;
      transform:translateY(-1px);
      box-shadow:0 8px 20px rgba(16,46,74,.25);
    }
    .step-pill.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(77,216,255,.18), rgba(117,131,255,.18));
      border-color:rgba(77,216,255,.34);
      box-shadow:0 14px 30px rgba(31,78,121,.22), 0 0 24px rgba(77,216,255,.12);
    }
    .main{
      padding:28px 0 84px;
    }
    section{
      position:relative;
      padding:34px 0;
      scroll-margin-top:120px;
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:22px;
    }
    .section-title{
      margin:0;
      font-size:clamp(1.35rem, 2vw, 2rem);
      line-height:1.18;
      font-weight:700;
      letter-spacing:.01em;
    }
    .section-desc{
      margin:0;
      max-width:720px;
      color:var(--muted);
      font-size:.98rem;
    }
    .section-badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(77,216,255,.16);
      color:#cdeeff;
      background:rgba(77,216,255,.06);
      font-size:.85rem;
      white-space:nowrap;
    }
    .section-badge i{
      width:8px;height:8px;border-radius:50%;
      background:linear-gradient(135deg, #4dd8ff, #7f9bff);
      box-shadow:0 0 14px rgba(77,216,255,.5);
      display:inline-block;
    }
    .glass{
      position:relative;
      background:linear-gradient(180deg, rgba(16,28,50,.78), rgba(11,20,36,.72));
      border:1px solid rgba(124,187,255,.14);
      border-radius:var(--radius);
      box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.03);
      backdrop-filter:blur(18px);
      overflow:hidden;
      transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }
    .glass::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(135deg, rgba(255,255,255,.06), transparent 35%, transparent 65%, rgba(255,255,255,.04));
      opacity:.55;
      pointer-events:none;
    }
    .glass:hover{
      transform:translateY(-6px);
      border-color:rgba(77,216,255,.3);
      box-shadow:0 30px 70px rgba(1,8,18,.54), 0 0 40px rgba(77,216,255,.1);
    }
    .hero{
      padding-top:18px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:repeat(12, minmax(0,1fr));
      gap:var(--gap);
      align-items:stretch;
    }
    .hero-copy{
      grid-column:span 7;
      padding:34px;
      min-height:540px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .hero-flag{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-bottom:14px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(124,187,255,.18);
      background:rgba(255,255,255,.03);
      color:#d4e7fa;
      font-size:.86rem;
    }
    .badge strong{
      color:#fff;
      font-weight:700;
    }
    .hero h1{
      margin:0;
      font-size:clamp(2.1rem, 5vw, 4.7rem);
      line-height:1.03;
      letter-spacing:.01em;
      max-width:10ch;
      text-wrap:balance;
    }
    .hero p{
      margin:18px 0 0;
      max-width:52ch;
      color:var(--soft);
      font-size:1.02rem;
    }
    .cta-group{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:24px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:0 20px;
      border-radius:999px;
      font-weight:700;
      letter-spacing:.01em;
      border:1px solid transparent;
      user-select:none;
      cursor:pointer;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, opacity .2s ease;
    }
    .btn-primary{
      color:#07111f;
      background:linear-gradient(135deg, #8cf2ff, #7d93ff);
      box-shadow:0 14px 34px rgba(53,144,255,.24), 0 0 28px rgba(77,216,255,.14);
    }
    .btn-primary:hover,
    .btn-primary:focus-visible{
      transform:translateY(-2px);
      box-shadow:0 18px 40px rgba(53,144,255,.3), 0 0 34px rgba(77,216,255,.22);
      outline:none;
    }
    .btn-secondary{
      color:#e8f5ff;
      background:rgba(255,255,255,.03);
      border-color:rgba(124,187,255,.18);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
    }
    .btn-secondary:hover,
    .btn-secondary:focus-visible{
      transform:translateY(-2px);
      background:rgba(77,216,255,.08);
      border-color:rgba(77,216,255,.3);
      outline:none;
    }
    .btn:active{
      transform:translateY(0);
    }
    .btn:disabled{
      cursor:not-allowed;
      opacity:.55;
      box-shadow:none;
      transform:none;
    }
    .chip-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:18px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:36px;
      padding:0 13px;
      border-radius:999px;
      background:rgba(77,216,255,.08);
      border:1px solid rgba(77,216,255,.16);
      color:#d8f4ff;
      font-size:.86rem;
    }
    .hero-panel{
      grid-column:span 5;
      display:grid;
      gap:var(--gap);
      min-height:540px;
    }
    .hero-summary{
      padding:24px;
    }
    .panel-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:16px;
    }
    .panel-title{
      margin:0;
      font-size:1.05rem;
      font-weight:700;
    }
    .mini-note{
      color:var(--muted);
      font-size:.84rem;
      white-space:nowrap;
    }
    .summary-list{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .summary-list li{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:13px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(124,187,255,.12);
    }
    .summary-list li svg{
      flex:0 0 auto;
      width:18px;height:18px;
      margin-top:2px;
      stroke:var(--accent);
      fill:none;
      stroke-width:2;
      stroke-linecap:round;
      stroke-linejoin:round;
    }
    .summary-list strong{
      display:block;
      font-size:.96rem;
      margin-bottom:3px;
    }
    .summary-list span{
      display:block;
      color:var(--muted);
      font-size:.88rem;
    }
    .hero-meta{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:14px;
    }
    .stat-mini{
      padding:16px 14px;
      border-radius:18px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(124,187,255,.12);
      min-height:94px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .stat-mini strong{
      font-size:1.4rem;
      letter-spacing:-.02em;
      line-height:1;
    }
    .stat-mini span{
      color:var(--muted);
      font-size:.85rem;
    }
    .hero-quick{
      padding:18px 20px 20px;
      display:grid;
      gap:14px;
    }
    .quick-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:12px;
    }
    .quick-card{
      padding:15px;
      border-radius:18px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(124,187,255,.12);
    }
    .quick-card h3{
      margin:0 0 6px;
      font-size:.96rem;
    }
    .quick-card p{
      margin:0;
      color:var(--muted);
      font-size:.88rem;
    }
    .quick-card .btn{
      width:100%;
      margin-top:12px;
    }
    .status-row{
      display:grid;
      gap:10px;
      padding:15px;
      border-radius:18px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(124,187,255,.12);
    }
    .status-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      font-size:.9rem;
    }
    .status-top strong{
      font-size:.96rem;
    }
    .skeleton{
      position:relative;
      overflow:hidden;
      background:linear-gradient(90deg, rgba(255,255,255,.04) 0%, rgba(255,255,255,.08) 50%, rgba(255,255,255,.04) 100%);
      background-size:220% 100%;
      animation:shimmer 1.6s ease-in-out infinite;
    }
    .skeleton-bar{
      height:10px;
      border-radius:999px;
      margin-top:8px;
      background:linear-gradient(90deg, rgba(77,216,255,.14) 0%, rgba(77,216,255,.32) 50%, rgba(77,216,255,.14) 100%);
      background-size:220% 100%;
      animation:shimmer 1.6s ease-in-out infinite;
    }
    @keyframes shimmer{
      0%{background-position:220% 0}
      100%{background-position:-220% 0}
    }
    .section-grid{
      display:grid;
      gap:var(--gap);
      grid-template-columns:repeat(12, minmax(0,1fr));
      align-items:start;
    }
    .benefit-main{
      grid-column:span 7;
      padding:28px;
    }
    .benefit-side{
      grid-column:span 5;
      display:grid;
      gap:var(--gap);
    }
    .benefit-card{
      padding:22px;
      min-height:162px;
    }
    .benefit-card h3{
      margin:0 0 8px;
      font-size:1.06rem;
    }
    .benefit-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .benefit-main .large-copy{
      display:grid;
      gap:18px;
    }
    .check-list{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .check-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:14px 15px;
      border-radius:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(124,187,255,.12);
    }
    .check-list svg{
      width:18px;
      height:18px;
      flex:0 0 auto;
      margin-top:2px;
      stroke:var(--accent-3);
      fill:none;
      stroke-width:2;
      stroke-linecap:round;
      stroke-linejoin:round;
    }
    .check-list strong{display:block;font-size:.95rem;margin-bottom:3px}
    .check-list span{display:block;color:var(--muted);font-size:.88rem}
    .phase-strip{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:12px;
    }
    .phase{
      padding:16px 14px;
      border-radius:18px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(124,187,255,.12);
      min-height:112px;
    }
    .phase .num{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:28px;height:28px;
      border-radius:50%;
      margin-bottom:10px;
      background:linear-gradient(135deg, rgba(77,216,255,.2), rgba(117,131,255,.2));
      border:1px solid rgba(77,216,255,.18);
      color:#fff;
      font-size:.82rem;
      font-weight:700;
    }
    .phase h4{
      margin:0 0 6px;
      font-size:.96rem;
    }
    .phase p{
      margin:0;
      color:var(--muted);
      font-size:.88rem;
    }
    .category-grid{
      display:grid;
      grid-template-columns:repeat(12, minmax(0,1fr));
      gap:var(--gap);
    }
    .category-card{
      grid-column:span 6;
      padding:26px;
      min-height:220px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      position:relative;
    }
    .category-card::after{
      content:"";
      position:absolute;
      right:-20px;
      top:-20px;
      width:180px;
      height:180px;
      border-radius:50%;
      background:radial-gradient(circle, rgba(77,216,255,.18), transparent 65%);
      pointer-events:none;
      filter:blur(10px);
    }
    .category-card .tag{
      display:inline-flex;
      align-items:center;
      padding:7px 10px;
      width:max-content;
      border-radius:999px;
      border:1px solid rgba(77,216,255,.18);
      background:rgba(77,216,255,.08);
      color:#dcf7ff;
      font-size:.8rem;
      margin-bottom:14px;
    }
    .category-card h3{
      margin:0;
      font-size:1.35rem;
      line-height:1.18;
    }
    .category-card p{
      margin:12px 0 0;
      color:var(--muted);
      max-width:34ch;
    }
    .category-card .link-row{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top:20px;
    }
    .category-card .link-row .btn{
      min-width:136px;
    }
    .category-card .meta{
      font-size:.85rem;
      color:var(--soft);
    }
    .news-layout{
      display:grid;
      grid-template-columns:repeat(12, minmax(0,1fr));
      gap:var(--gap);
    }
    .news-main{
      grid-column:span 8;
      padding:26px;
    }
    .news-aside{
      grid-column:span 4;
      display:grid;
      gap:var(--gap);
      position:relative;
    }
    .news-list{
      display:grid;
      gap:12px;
    }
    .news-item{
      display:grid;
      gap:10px;
      padding:16px 0;
      border-bottom:1px solid rgba(124,187,255,.12);
    }
    .news-item:first-child{
      padding-top:0;
    }
    .news-item:last-child{
      border-bottom:none;
      padding-bottom:0;
    }
    .news-item a.title{
      font-size:1.02rem;
      font-weight:700;
      line-height:1.35;
    }
    .news-item a.title:hover,
    .news-item a.title:focus-visible{
      color:#c7f3ff;
      outline:none;
    }
    .news-item p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }
    .news-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      align-items:center;
      color:#aecdff;
      font-size:.82rem;
    }
    .news-aside .glass{
      padding:22px;
    }
    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag-cloud .chip{
      padding:0 12px;
      background:rgba(255,255,255,.03);
      border-color:rgba(124,187,255,.14);
    }
    .quick-links{
      display:grid;
      gap:10px;
    }
    .quick-links a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding:14px 15px;
      border-radius:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(124,187,255,.12);
      color:#eaf4ff;
    }
    .quick-links a:hover,
    .quick-links a:focus-visible{
      transform:translateY(-2px);
      border-color:rgba(77,216,255,.28);
      background:rgba(77,216,255,.06);
      outline:none;
    }
    .metrics-grid{
      display:grid;
      grid-template-columns:repeat(4, minmax(0,1fr));
      gap:var(--gap);
    }
    .metric-card{
      padding:22px;
      min-height:174px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .metric-card .kpi{
      font-size:2rem;
      line-height:1;
      font-weight:800;
      letter-spacing:-.03em;
    }
    .metric-card .label{
      color:#d8e9ff;
      font-size:.96rem;
      margin-top:10px;
    }
    .metric-card .desc{
      color:var(--muted);
      font-size:.88rem;
      margin-top:8px;
    }
    .compare-card{
      grid-column:span 12;
      padding:26px;
    }
    .compare-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:14px;
      margin-top:16px;
    }
    .compare-col{
      padding:18px;
      border-radius:18px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(124,187,255,.12);
    }
    .compare-col h4{
      margin:0 0 10px;
      font-size:1rem;
    }
    .compare-col ul{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .compare-col li{
      display:flex;
      gap:10px;
      color:var(--muted);
      font-size:.9rem;
    }
    .compare-col li::before{
      content:"";
      width:8px;height:8px;
      border-radius:50%;
      background:linear-gradient(135deg, #4dd8ff, #7f9bff);
      margin-top:8px;
      flex:0 0 auto;
      box-shadow:0 0 12px rgba(77,216,255,.35);
    }
    .review-grid{
      display:grid;
      grid-template-columns:repeat(12, minmax(0,1fr));
      gap:var(--gap);
    }
    .review-card{
      padding:22px;
      min-height:170px;
    }
    .review-card.large{
      grid-column:span 5;
    }
    .review-card.mid{
      grid-column:span 4;
      margin-top:22px;
    }
    .review-card.small{
      grid-column:span 3;
    }
    .review-card .quote{
      font-size:1rem;
      margin:0 0 18px;
      color:#f2f8ff;
    }
    .review-card .who{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:.88rem;
    }
    .avatar{
      width:36px;
      height:36px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(77,216,255,.18), rgba(117,131,255,.18));
      border:1px solid rgba(77,216,255,.2);
      color:#fff;
      font-weight:700;
      box-shadow:0 0 24px rgba(77,216,255,.1);
    }
    .faq-wrap{
      display:grid;
      gap:12px;
    }
    .faq-item{
      border-radius:18px;
      border:1px solid rgba(124,187,255,.14);
      background:rgba(255,255,255,.03);
      overflow:hidden;
    }
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      padding:18px 20px;
      color:#f2f8ff;
      text-align:left;
      font-weight:700;
    }
    .faq-question span{
      display:block;
      flex:1;
      line-height:1.45;
    }
    .faq-question em{
      flex:0 0 auto;
      width:28px;
      height:28px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:rgba(255,255,255,.04);
      border:1px solid rgba(124,187,255,.14);
      font-style:normal;
      transition:transform .2s ease, background .2s ease;
    }
    .faq-item.open .faq-question em{
      transform:rotate(45deg);
      background:rgba(77,216,255,.1);
    }
    .faq-answer{
      padding:0 20px 18px;
      color:var(--muted);
      font-size:.94rem;
      display:none;
    }
    .faq-item.open .faq-answer{
      display:block;
    }
    .faq-item.open{
      border-color:rgba(77,216,255,.28);
      box-shadow:0 12px 32px rgba(0,0,0,.18), 0 0 22px rgba(77,216,255,.08);
    }
    .apply-grid{
      display:grid;
      grid-template-columns:repeat(12, minmax(0,1fr));
      gap:var(--gap);
      align-items:stretch;
    }
    .apply-copy{
      grid-column:span 5;
      padding:28px;
    }
    .apply-form{
      grid-column:span 7;
      padding:28px;
    }
    .apply-copy p{
      margin:14px 0 18px;
      color:var(--muted);
    }
    .apply-points{
      display:grid;
      gap:12px;
      margin:18px 0 0;
      padding:0;
      list-style:none;
    }
    .apply-points li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:12px 14px;
      border-radius:16px;
      background:rgba(255,255,255,.03);
      border:1px solid rgba(124,187,255,.12);
      color:#dcecff;
      font-size:.92rem;
    }
    .apply-points li::before{
      content:"";
      width:10px;
      height:10px;
      border-radius:50%;
      margin-top:7px;
      flex:0 0 auto;
      background:linear-gradient(135deg, #4dd8ff, #7f9bff);
      box-shadow:0 0 16px rgba(77,216,255,.4);
    }
    .form-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:14px;
    }
    .field{
      display:grid;
      gap:8px;
    }
    .field.full{
      grid-column:1 / -1;
    }
    .field label{
      font-size:.9rem;
      color:#dce9ff;
      font-weight:600;
    }
    .field input,
    .field textarea,
    .field select{
      width:100%;
      min-height:50px;
      padding:13px 15px;
      border-radius:16px;
      border:1px solid rgba(124,187,255,.16);
      background:rgba(7,14,26,.75);
      color:var(--text);
      outline:none;
      transition:border-color .2s ease, box-shadow .2s ease, background .2s ease, transform .2s ease;
    }
    .field textarea{
      min-height:126px;
      resize:vertical;
    }
    .field input::placeholder,
    .field textarea::placeholder{
      color:#7e95b6;
    }
    .field input:focus,
    .field textarea:focus,
    .field select:focus{
      border-color:rgba(77,216,255,.42);
      box-shadow:0 0 0 4px rgba(77,216,255,.12);
      background:rgba(10,20,36,.92);
    }
    .field input:disabled,
    .field textarea:disabled,
    .field select:disabled{
      opacity:.55;
      cursor:not-allowed;
    }
    .form-foot{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:12px;
      margin-top:16px;
      justify-content:space-between;
    }
    .helper{
      color:var(--muted);
      font-size:.88rem;
    }
    .btn.loading{
      position:relative;
      pointer-events:none;
      opacity:.85;
    }
    .btn.loading::after{
      content:"";
      width:14px;
      height:14px;
      margin-left:10px;
      border-radius:50%;
      border:2px solid rgba(7,17,31,.26);
      border-top-color:rgba(7,17,31,.82);
      animation:spin .85s linear infinite;
    }
    @keyframes spin{
      to{transform:rotate(360deg)}
    }
    .toast{
      position:fixed;
      left:50%;
      bottom:24px;
      transform:translateX(-50%) translateY(18px);
      opacity:0;
      pointer-events:none;
      padding:14px 18px;
      border-radius:999px;
      background:rgba(8,18,31,.94);
      border:1px solid rgba(77,216,255,.24);
      color:#eff8ff;
      box-shadow:0 18px 42px rgba(0,0,0,.26), 0 0 24px rgba(77,216,255,.1);
      transition:opacity .25s ease, transform .25s ease;
      z-index:1200;
      max-width:calc(100% - 28px);
      text-align:center;
    }
    .toast.show{
      opacity:1;
      transform:translateX(-50%) translateY(0);
    }
    .site-footer{
      padding:34px 0 40px;
      border-top:1px solid rgba(124,187,255,.12);
      background:linear-gradient(180deg, rgba(6,13,24,.4), rgba(6,12,22,.78));
      backdrop-filter:blur(12px);
    }
    .footer-grid{
      display:grid;
      grid-template-columns:2fr 1.1fr 1.1fr 1.3fr;
      gap:20px;
    }
    .footer-col{
      min-width:0;
    }
    .footer-col h3{
      margin:0 0 12px;
      font-size:1rem;
    }
    .footer-col p,
    .footer-col li{
      color:var(--muted);
      font-size:.92rem;
    }
    .footer-col ul{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .footer-col a:hover,
    .footer-col a:focus-visible{
      color:#fff;
      outline:none;
    }
    .footer-brand{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .footer-brand strong{
      font-size:1.08rem;
    }
    .footer-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      color:#bfd4f1;
      font-size:.86rem;
      margin-top:10px;
    }
    .footer-bottom{
      margin-top:20px;
      padding-top:16px;
      border-top:1px solid rgba(124,187,255,.12);
      display:flex;
      flex-wrap:wrap;
      gap:10px 20px;
      align-items:center;
      justify-content:space-between;
      color:var(--muted);
      font-size:.86rem;
    }
    .crumbs{
      display:flex;
      align-items:center;
      gap:8px;
      color:var(--muted);
      font-size:.88rem;
      margin-bottom:14px;
    }
    .crumbs a:hover,
    .crumbs a:focus-visible{
      color:#fff;
      outline:none;
    }
    .crumbs span{
      opacity:.55;
    }
    .accent-link{
      color:#dff7ff;
      font-weight:700;
    }
    .sticky-note{
      position:sticky;
      top:112px;
    }
    .soft-divider{
      width:100%;
      height:1px;
      background:linear-gradient(90deg, transparent, rgba(124,187,255,.16), transparent);
      margin:18px 0;
    }
    .mobile-only{display:none}
    @media (max-width: 1280px){
      .hero-copy{grid-column:span 12; min-height:auto}
      .hero-panel{grid-column:span 12; min-height:auto}
      .section-grid,
      .news-layout,
      .apply-grid,
      .review-grid,
      .hero-grid,
      .metrics-grid,
      .category-grid{
        grid-template-columns:repeat(12, minmax(0,1fr));
      }
      .benefit-main{grid-column:span 12}
      .benefit-side{grid-column:span 12}
      .review-card.large,
      .review-card.mid,
      .review-card.small{grid-column:span 4; margin-top:0}
      .footer-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
    }
    @media (max-width: 1024px){
      :root{--container: 100%}
      .nav-shell{gap:12px}
      .nav-links{gap:4px}
      .nav-links a{padding:10px 12px}
      .hero-copy,
      .hero-panel,
      .benefit-main,
      .benefit-side,
      .news-main,
      .news-aside,
      .apply-copy,
      .apply-form{
        grid-column:span 12;
      }
      .metrics-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
      .category-card{grid-column:span 12}
      .review-card.large,
      .review-card.mid,
      .review-card.small{grid-column:span 12}
      .phase-strip{grid-template-columns:repeat(2, minmax(0,1fr))}
      .footer-grid{grid-template-columns:repeat(2, minmax(0,1fr))}
      .sticky-note{position:static}
    }
    @media (max-width: 768px){
      .header-inner{gap:12px}
      .menu-toggle{display:inline-flex}
      .nav-links{
        display:none;
        position:absolute;
        left:16px;
        right:16px;
        top:calc(var(--nav-h) - 6px);
        flex-direction:column;
        align-items:stretch;
        padding:10px;
        border-radius:22px;
        background:rgba(7,16,30,.96);
        border-color:rgba(124,187,255,.18);
        box-shadow:0 20px 50px rgba(0,0,0,.35);
      }
      .nav-links.open{display:flex}
      .nav-shell{justify-content:flex-end}
      .header-action{
        display:none;
      }
      .header-action.mobile-only{
        display:inline-flex;
      }
      .hero-copy,
      .hero-summary,
      .hero-quick,
      .benefit-main,
      .benefit-card,
      .news-main,
      .news-aside .glass,
      .apply-copy,
      .apply-form,
      .category-card,
      .metric-card,
      .review-card,
      .compare-card{
        padding:20px;
      }
      .hero h1{max-width:12ch}
      .hero-meta,
      .quick-grid,
      .compare-grid,
      .form-grid{
        grid-template-columns:1fr;
      }
      .metrics-grid{grid-template-columns:1fr}
      .phase-strip{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .section{
        padding:24px 0;
      }
      .section-head{
        flex-direction:column;
        align-items:flex-start;
      }
    }
    @media (max-width: 520px){
      .container{width:min(var(--container), calc(100% - 22px))}
      .brand-title{font-size:.96rem}
      .brand-sub{font-size:.76rem}
      .hero-copy,
      .hero-panel{
        padding:18px;
      }
      .hero h1{
        font-size:clamp(1.9rem, 11vw, 3rem);
        max-width:11ch;
      }
      .cta-group .btn,
      .apply-form .btn{
        width:100%;
      }
      .form-foot{
        flex-direction:column;
        align-items:stretch;
      }
      .form-foot .helper{
        text-align:left;
      }
      .btn,
      .header-action{
        min-height:46px;
      }
      .chip-row,
      .badge-row{
        gap:8px;
      }
      .badge,
      .chip{
        font-size:.82rem;
      }
      .news-item a.title{
        font-size:.98rem;
      }
      .summary-list li,
      .check-list li,
      .apply-points li{
        padding:12px;
      }
    }

/* roulang page: category1 */
:root{
      --bg-0:#05111e;
      --bg-1:#071523;
      --bg-2:#0b1d31;
      --panel:rgba(9,20,35,.68);
      --panel-strong:rgba(12,25,43,.84);
      --card:rgba(11,24,41,.62);
      --card-strong:rgba(14,30,50,.88);
      --line:rgba(125, 194, 255, .16);
      --line-strong:rgba(129, 206, 255, .28);
      --text:#e9f4ff;
      --muted:#a5bdd6;
      --soft:#7f96b0;
      --brand:#68d7ff;
      --brand-2:#7d8cff;
      --brand-3:#32c9c0;
      --danger:#ff6f8e;
      --success:#62e6b5;
      --shadow:0 18px 50px rgba(0, 0, 0, .34);
      --glow:0 0 0 1px rgba(104,215,255,.16), 0 18px 50px rgba(9,22,39,.36), 0 0 30px rgba(104,215,255,.12);
      --radius:22px;
      --radius-lg:28px;
      --radius-sm:16px;
      --container:1320px;
      --gap:24px;
      --header-h:82px;
      --step-h:54px;
      --ease:cubic-bezier(.2,.8,.2,1);
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      color:var(--text);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
      line-height:1.7;
      background:
        radial-gradient(circle at 18% 10%, rgba(80, 142, 255, .22), transparent 28%),
        radial-gradient(circle at 82% 18%, rgba(61, 211, 207, .16), transparent 24%),
        radial-gradient(circle at 50% 92%, rgba(125, 140, 255, .12), transparent 28%),
        linear-gradient(180deg, #04101b 0%, #071524 42%, #081524 100%);
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        linear-gradient(rgba(120,170,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120,170,255,.05) 1px, transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.76), rgba(0,0,0,.24) 70%, transparent);
      opacity:.42;
      z-index:-1;
    }
    body::after{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        radial-gradient(circle at 20% 30%, rgba(104,215,255,.08), transparent 18%),
        radial-gradient(circle at 74% 66%, rgba(125,140,255,.10), transparent 18%),
        radial-gradient(circle at 40% 82%, rgba(50,201,192,.08), transparent 15%);
      filter:blur(10px);
      z-index:-1;
    }

    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(104,215,255,.32);color:#fff}

    .container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:blur(18px);
      background:linear-gradient(180deg, rgba(4,13,24,.84), rgba(6,15,26,.66));
      border-bottom:1px solid rgba(128, 195, 255, .11);
      box-shadow:0 8px 30px rgba(0,0,0,.16);
    }
    .header-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      min-height:var(--header-h);
      padding:14px 0;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:14px;
      min-width:0;
    }
    .brand-mark{
      width:52px;
      height:52px;
      border-radius:18px;
      display:grid;
      place-items:center;
      background:
        linear-gradient(145deg, rgba(104,215,255,.18), rgba(125,140,255,.12)),
        rgba(11,24,41,.72);
      border:1px solid rgba(138, 214, 255, .22);
      box-shadow:var(--glow);
      flex:0 0 auto;
    }
    .brand-mark svg{
      width:28px;height:28px;
      fill:none;
      stroke:var(--brand);
      stroke-width:1.8;
      stroke-linecap:round;
      stroke-linejoin:round;
      filter:drop-shadow(0 0 8px rgba(104,215,255,.35));
    }
    .brand-text{display:flex;flex-direction:column;gap:2px;min-width:0}
    .brand-title{
      font-size:1.02rem;
      font-weight:700;
      letter-spacing:.02em;
      line-height:1.15;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-sub{
      color:var(--muted);
      font-size:.86rem;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }

    .nav-shell{
      display:flex;
      align-items:center;
      gap:14px;
      position:relative;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:10px;
      padding:6px;
      background:rgba(10,24,41,.52);
      border:1px solid rgba(132, 199, 255, .14);
      border-radius:999px;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
    }
    .nav-links a{
      position:relative;
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:42px;
      padding:0 16px;
      border-radius:999px;
      color:var(--muted);
      font-size:.95rem;
      transition:all .25s var(--ease);
      border:1px solid transparent;
    }
    .nav-links a:hover,
    .nav-links a:focus-visible{
      color:var(--text);
      background:rgba(104,215,255,.08);
      border-color:rgba(104,215,255,.14);
      outline:none;
      transform:translateY(-1px);
    }
    .nav-links a.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(104,215,255,.20), rgba(125,140,255,.18));
      border-color:rgba(104,215,255,.24);
      box-shadow:0 10px 24px rgba(32, 138, 201, .16);
    }

    .header-action{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:46px;
      padding:0 18px;
      border-radius:999px;
      color:#eaf8ff;
      font-weight:600;
      border:1px solid rgba(104,215,255,.30);
      background:linear-gradient(135deg, rgba(43, 180, 255, .16), rgba(87, 119, 255, .10));
      box-shadow:0 12px 26px rgba(22, 106, 168, .22), 0 0 0 1px rgba(104,215,255,.06) inset;
      transition:transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
    }
    .header-action:hover,
    .header-action:focus-visible{
      outline:none;
      transform:translateY(-1px);
      border-color:rgba(104,215,255,.46);
      box-shadow:0 16px 30px rgba(22, 106, 168, .28), 0 0 28px rgba(104,215,255,.14);
    }

    .menu-toggle{
      display:none;
      width:48px;height:48px;
      border-radius:16px;
      background:rgba(10,24,41,.58);
      border:1px solid rgba(132, 199, 255, .14);
      color:var(--text);
      align-items:center;
      justify-content:center;
      transition:all .25s var(--ease);
    }
    .menu-toggle svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round}
    .menu-toggle:hover,
    .menu-toggle:focus-visible{
      outline:none;
      transform:translateY(-1px);
      border-color:rgba(104,215,255,.3);
      box-shadow:0 0 0 4px rgba(104,215,255,.08);
    }

    .step-nav-wrap{
      padding:0 0 14px;
    }
    .step-nav{
      display:flex;
      align-items:center;
      gap:10px;
      overflow:auto;
      padding:0 2px 4px;
      scrollbar-width:none;
    }
    .step-nav::-webkit-scrollbar{display:none}
    .step-pill{
      position:relative;
      flex:0 0 auto;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:var(--step-h);
      padding:0 18px;
      border-radius:999px;
      border:1px solid rgba(132, 199, 255, .14);
      background:rgba(9,20,35,.48);
      color:var(--muted);
      font-size:.92rem;
      letter-spacing:.02em;
      transition:all .25s var(--ease);
    }
    .step-pill::before{
      content:attr(data-step);
      width:22px;height:22px;
      border-radius:50%;
      display:inline-grid;
      place-items:center;
      margin-right:10px;
      font-size:.72rem;
      font-weight:700;
      color:#081321;
      background:linear-gradient(135deg, #9ff0ff, #7ca8ff);
      box-shadow:0 0 0 4px rgba(104,215,255,.08);
    }
    .step-pill:hover,
    .step-pill:focus-visible{
      outline:none;
      color:#fff;
      border-color:rgba(104,215,255,.36);
      background:rgba(104,215,255,.08);
      transform:translateY(-1px);
      box-shadow:0 10px 24px rgba(24, 110, 166, .18);
    }
    .step-pill.active{
      color:#fff;
      background:linear-gradient(135deg, rgba(104,215,255,.20), rgba(125,140,255,.18));
      border-color:rgba(104,215,255,.34);
      box-shadow:0 14px 30px rgba(27, 120, 176, .20);
    }
    .step-pill.active::before{
      background:linear-gradient(135deg, #dbfbff, #7fe0ff);
    }

    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      color:var(--muted);
      font-size:.92rem;
      margin:8px 0 20px;
    }
    .breadcrumb a{
      color:rgba(233,244,255,.82);
      transition:color .2s var(--ease);
    }
    .breadcrumb a:hover{color:#fff}
    .breadcrumb span.sep{opacity:.42}

    main{padding:10px 0 24px}
    .section{
      padding:24px 0;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:18px;
    }
    .section-title{
      margin:0;
      font-size:clamp(1.36rem, 2vw, 1.9rem);
      font-weight:700;
      letter-spacing:.01em;
      line-height:1.25;
    }
    .section-desc{
      margin:6px 0 0;
      color:var(--muted);
      max-width:68ch;
      font-size:.98rem;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:#cbeeff;
      font-size:.9rem;
      font-weight:600;
      letter-spacing:.03em;
      text-transform:none;
    }
    .section-kicker::before{
      content:"";
      width:10px;height:10px;
      border-radius:50%;
      background:linear-gradient(135deg, #9ff0ff, #7ca8ff);
      box-shadow:0 0 12px rgba(104,215,255,.7);
    }

    .glass-card{
      position:relative;
      overflow:hidden;
      background:linear-gradient(180deg, rgba(12,27,45,.76), rgba(8,18,31,.62));
      border:1px solid rgba(134, 202, 255, .16);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
      transition:transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
    }
    .glass-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(135deg, rgba(104,215,255,.10), transparent 35%, rgba(125,140,255,.06));
      opacity:.8;
      pointer-events:none;
    }
    .glass-card:hover{
      transform:translateY(-5px);
      border-color:rgba(104,215,255,.30);
      box-shadow:0 26px 62px rgba(0,0,0,.42), 0 0 36px rgba(104,215,255,.10);
    }

    .hero{
      padding-top:6px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);
      gap:var(--gap);
      align-items:stretch;
    }
    .hero-copy{
      padding:28px;
      border-radius:var(--radius-lg);
    }
    .hero-copy .section-kicker{
      margin-bottom:12px;
    }
    .hero h1{
      margin:0;
      font-size:clamp(2rem, 3.6vw, 3.8rem);
      line-height:1.08;
      letter-spacing:-.02em;
      max-width:12ch;
    }
    .hero-lead{
      margin:18px 0 0;
      color:#cfe1f3;
      max-width:62ch;
      font-size:1.03rem;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin:24px 0 18px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:50px;
      padding:0 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:700;
      letter-spacing:.01em;
      transition:all .25s var(--ease);
      position:relative;
      overflow:hidden;
    }
    .btn:focus-visible{
      outline:none;
      box-shadow:0 0 0 4px rgba(104,215,255,.12);
    }
    .btn-primary{
      color:#04101b;
      background:linear-gradient(135deg, #9be9ff 0%, #6bb8ff 52%, #8b8fff 100%);
      box-shadow:0 16px 28px rgba(44, 123, 172, .28), 0 0 24px rgba(104,215,255,.14);
    }
    .btn-primary:hover{
      transform:translateY(-2px) scale(1.01);
      box-shadow:0 18px 34px rgba(44, 123, 172, .32), 0 0 30px rgba(104,215,255,.22);
    }
    .btn-secondary{
      color:#edf8ff;
      border-color:rgba(143, 208, 255, .22);
      background:rgba(11,24,41,.52);
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      border-color:rgba(104,215,255,.4);
      background:rgba(104,215,255,.08);
    }
    .btn-ghost{
      color:#d9ecfb;
      border-color:rgba(132, 199, 255, .14);
      background:rgba(10,20,35,.3);
    }
    .btn-ghost:hover{
      background:rgba(255,255,255,.05);
      border-color:rgba(104,215,255,.28);
      transform:translateY(-1px);
    }
    .btn.disabled,
    .btn[disabled]{
      opacity:.48;
      pointer-events:none;
      filter:saturate(.5);
      box-shadow:none;
      transform:none;
    }

    .hero-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:10px;
    }
    .tag{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      color:#d9ecfb;
      border:1px solid rgba(131, 199, 255, .16);
      background:rgba(10,22,38,.44);
      font-size:.88rem;
      transition:all .2s var(--ease);
    }
    .tag:hover,
    .tag:focus-visible{
      outline:none;
      border-color:rgba(104,215,255,.3);
      color:#fff;
      transform:translateY(-1px);
    }
    .tag.is-active{
      color:#03101a;
      background:linear-gradient(135deg, #aaf1ff, #7ca8ff);
      border-color:transparent;
      font-weight:700;
    }
    .tag[disabled]{
      opacity:.46;
      cursor:not-allowed;
      transform:none;
    }

    .hero-side{
      display:grid;
      gap:var(--gap);
    }
    .cover-card{
      padding:22px;
      border-radius:var(--radius-lg);
    }
    .cover-top{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      margin-bottom:18px;
    }
    .cover-kicker{
      color:#9fefff;
      font-size:.86rem;
      letter-spacing:.08em;
      text-transform:uppercase;
    }
    .cover-title{
      margin:6px 0 0;
      font-size:1.44rem;
      line-height:1.2;
      font-weight:700;
    }
    .cover-note{
      margin:8px 0 0;
      color:var(--muted);
      font-size:.96rem;
    }
    .mini-badge{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      padding:8px 12px;
      border-radius:999px;
      color:#06111d;
      font-size:.82rem;
      font-weight:700;
      background:linear-gradient(135deg, #9ef0ff, #8b8fff);
      box-shadow:0 0 0 4px rgba(104,215,255,.1);
      flex:0 0 auto;
    }
    .mini-list{
      display:grid;
      gap:12px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .mini-list li{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:12px 0;
      border-top:1px solid rgba(132, 199, 255, .12);
    }
    .mini-list li:first-child{border-top:none;padding-top:0}
    .mini-mark{
      width:28px;height:28px;
      border-radius:10px;
      display:grid;
      place-items:center;
      background:rgba(104,215,255,.12);
      border:1px solid rgba(104,215,255,.18);
      color:#bdf5ff;
      flex:0 0 auto;
      box-shadow:0 0 14px rgba(104,215,255,.1);
    }
    .mini-list strong{
      display:block;
      font-size:.95rem;
      margin-bottom:2px;
    }
    .mini-list span{
      color:var(--muted);
      font-size:.9rem;
    }

    .hero-stat{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:12px;
    }
    .stat-card{
      padding:14px 14px 13px;
      border-radius:18px;
      background:rgba(8,18,31,.58);
      border:1px solid rgba(128, 195, 255, .14);
    }
    .stat-card strong{
      display:block;
      font-size:1.2rem;
      font-weight:800;
      line-height:1.1;
      margin-bottom:4px;
      color:#ecfbff;
    }
    .stat-card span{
      color:var(--muted);
      font-size:.82rem;
    }

    .pain-grid{
      display:grid;
      grid-template-columns:1.03fr .97fr;
      gap:var(--gap);
    }
    .pain-panel{
      padding:24px;
      border-radius:var(--radius-lg);
    }
    .pain-list{
      display:grid;
      gap:14px;
      margin-top:14px;
    }
    .issue{
      display:grid;
      grid-template-columns:auto 1fr;
      gap:14px;
      align-items:start;
      padding:16px 16px 16px 0;
      border-top:1px solid rgba(132, 199, 255, .12);
    }
    .issue:first-child{border-top:none;padding-top:0}
    .issue-num{
      width:38px;height:38px;
      border-radius:13px;
      display:grid;
      place-items:center;
      font-weight:800;
      color:#04101b;
      background:linear-gradient(135deg, #9ff0ff, #7ca8ff);
      box-shadow:0 0 0 4px rgba(104,215,255,.08);
    }
    .issue h3{
      margin:0 0 4px;
      font-size:1rem;
      line-height:1.25;
    }
    .issue p{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
    }
    .compare{
      padding:24px;
      border-radius:var(--radius-lg);
      display:grid;
      gap:16px;
      align-content:start;
    }
    .compare-row{
      display:grid;
      gap:10px;
    }
    .compare-head{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:2px;
    }
    .compare-head strong{
      font-size:1rem;
    }
    .compare-head span{
      color:var(--muted);
      font-size:.88rem;
    }
    .bar{
      height:12px;
      border-radius:999px;
      background:rgba(255,255,255,.05);
      overflow:hidden;
      border:1px solid rgba(132, 199, 255, .1);
    }
    .bar > i{
      display:block;
      height:100%;
      border-radius:inherit;
      background:linear-gradient(90deg, #8feaff, #7e9cff, #53d7c5);
      box-shadow:0 0 14px rgba(104,215,255,.22);
    }
    .compare-note{
      padding:14px 16px;
      border-radius:18px;
      background:rgba(104,215,255,.08);
      border:1px dashed rgba(104,215,255,.22);
      color:#d9ecfb;
      font-size:.94rem;
    }

    .catalog-layout{
      display:grid;
      grid-template-columns:280px minmax(0,1fr);
      gap:var(--gap);
      align-items:start;
    }
    .catalog-aside{
      position:sticky;
      top:calc(var(--header-h) + 16px);
      padding:22px;
      border-radius:var(--radius-lg);
    }
    .aside-block + .aside-block{
      margin-top:18px;
      padding-top:18px;
      border-top:1px solid rgba(132, 199, 255, .12);
    }
    .aside-title{
      margin:0 0 12px;
      font-size:1rem;
      font-weight:700;
    }
    .jump-list{
      display:grid;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .jump-list a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:10px 12px;
      border-radius:14px;
      color:#dbeeff;
      border:1px solid rgba(132, 199, 255, .12);
      background:rgba(10,22,38,.34);
      transition:all .22s var(--ease);
    }
    .jump-list a:hover,
    .jump-list a:focus-visible{
      outline:none;
      transform:translateX(2px);
      border-color:rgba(104,215,255,.28);
      background:rgba(104,215,255,.08);
    }
    .jump-list small{
      color:var(--muted);
    }

    .tag-cloud{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .tag-cloud .tag{
      min-height:32px;
      padding:0 11px;
      font-size:.84rem;
    }

    .catalog-main{
      display:grid;
      gap:18px;
    }
    .feature-entry,
    .entry-card,
    .news-card,
    .quote-card,
    .info-card,
    .cta-card{
      position:relative;
      overflow:hidden;
      background:linear-gradient(180deg, rgba(13,29,48,.78), rgba(8,18,31,.62));
      border:1px solid rgba(132, 199, 255, .16);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      backdrop-filter:blur(16px);
    }
    .feature-entry::before,
    .entry-card::before,
    .news-card::before,
    .quote-card::before,
    .info-card::before,
    .cta-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(140deg, rgba(104,215,255,.08), transparent 26%, rgba(125,140,255,.05));
      pointer-events:none;
    }
    .feature-entry{
      padding:24px;
      display:grid;
      grid-template-columns:minmax(0,1.25fr) minmax(260px,.75fr);
      gap:18px;
      align-items:start;
      border-color:rgba(104,215,255,.24);
      box-shadow:0 24px 62px rgba(0,0,0,.34), 0 0 28px rgba(104,215,255,.08);
    }
    .feature-copy h3{
      margin:0 0 10px;
      font-size:1.4rem;
      line-height:1.25;
    }
    .feature-copy p{
      margin:0;
      color:var(--muted);
    }
    .feature-tags{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:14px;
    }
    .entry-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .entry-card{
      padding:18px;
    }
    .entry-card h4{
      margin:4px 0 8px;
      font-size:1.02rem;
      line-height:1.35;
    }
    .entry-card p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
    }
    .entry-meta{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      flex-wrap:wrap;
      margin-top:14px;
      padding-top:14px;
      border-top:1px solid rgba(132, 199, 255, .12);
      color:var(--soft);
      font-size:.84rem;
    }
    .entry-meta .label{
      display:inline-flex;
      align-items:center;
      gap:6px;
    }
    .entry-meta .label i{
      width:7px;height:7px;border-radius:50%;
      background:linear-gradient(135deg, #9ff0ff, #7ca8ff);
      box-shadow:0 0 10px rgba(104,215,255,.7);
      display:inline-block;
    }
    .entry-link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:#d9f6ff;
      font-weight:700;
      transition:transform .2s var(--ease), color .2s var(--ease);
    }
    .entry-link:hover{transform:translateX(2px);color:#fff}

    .results-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:var(--gap);
    }
    .metric-card{
      padding:20px;
      border-radius:var(--radius);
    }
    .metric-card strong{
      display:block;
      font-size:2rem;
      line-height:1;
      letter-spacing:-.03em;
      margin-bottom:8px;
      background:linear-gradient(135deg, #d9fbff 0%, #8befff 30%, #8b8fff 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
      text-shadow:0 0 24px rgba(104,215,255,.06);
    }
    .metric-card span{
      display:block;
      font-size:1rem;
      font-weight:700;
      margin-bottom:4px;
    }
    .metric-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }

    .reviews-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:var(--gap);
    }
    .quote-stack{
      display:grid;
      gap:var(--gap);
    }
    .quote-card{
      padding:20px;
    }
    .quote-head{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
    }
    .avatar{
      width:46px;height:46px;
      border-radius:16px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, rgba(159, 240, 255, .22), rgba(124, 168, 255, .16));
      border:1px solid rgba(132, 199, 255, .18);
      color:#effcff;
      font-weight:800;
      box-shadow:0 0 20px rgba(104,215,255,.09);
    }
    .quote-head strong{
      display:block;
      font-size:1rem;
    }
    .quote-head span{
      color:var(--muted);
      font-size:.86rem;
    }
    .quote-card p{
      margin:0;
      font-size:1rem;
      color:#eaf6ff;
    }
    .review-side{
      display:grid;
      gap:var(--gap);
      align-content:start;
    }
    .review-note{
      padding:22px;
      border-radius:var(--radius-lg);
    }
    .review-note ul{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:12px;
    }
    .review-note li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      color:#d6e8f7;
    }
    .review-note li::before{
      content:"";
      width:10px;height:10px;
      border-radius:50%;
      margin-top:8px;
      background:linear-gradient(135deg, #9ff0ff, #7ca8ff);
      box-shadow:0 0 12px rgba(104,215,255,.4);
      flex:0 0 auto;
    }

    .info-strip{
      padding:22px;
      border-radius:var(--radius-lg);
    }
    .info-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:14px;
      margin-top:14px;
    }
    .info-card{
      padding:16px;
      border-radius:20px;
    }
    .info-card strong{
      display:block;
      margin-bottom:8px;
      font-size:1rem;
    }
    .info-card p{
      margin:0;
      color:var(--muted);
      font-size:.92rem;
    }

    .news-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:var(--gap);
    }
    .news-card{
      padding:18px;
      border-radius:var(--radius);
    }
    .news-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:12px;
    }
    .news-top time{
      color:var(--muted);
      font-size:.84rem;
    }
    .news-card h3{
      margin:0 0 8px;
      font-size:1.04rem;
      line-height:1.35;
    }
    .news-card p{
      margin:0;
      color:var(--muted);
      font-size:.93rem;
    }

    .faq-wrap{
      display:grid;
      gap:12px;
    }
    .faq-item{
      padding:0;
      border-radius:18px;
      overflow:hidden;
      border:1px solid rgba(132, 199, 255, .14);
      background:rgba(10,22,38,.48);
      transition:all .25s var(--ease);
    }
    .faq-item[open]{
      border-color:rgba(104,215,255,.28);
      background:rgba(11,24,41,.76);
      box-shadow:0 16px 36px rgba(0,0,0,.24);
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 18px;
      font-weight:700;
      color:#eaf6ff;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"▾";
      color:#a8dff3;
      transition:transform .25s var(--ease);
      flex:0 0 auto;
    }
    .faq-item[open] summary::after{
      transform:rotate(180deg);
    }
    .faq-body{
      padding:0 18px 18px;
      color:var(--muted);
      border-top:1px solid rgba(132, 199, 255, .12);
      font-size:.95rem;
    }

    .cta-card{
      padding:26px;
      border-radius:var(--radius-lg);
    }
    .cta-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 410px;
      gap:24px;
      align-items:start;
    }
    .cta-copy h2{
      margin:0 0 12px;
      font-size:clamp(1.45rem, 2vw, 2rem);
      line-height:1.2;
    }
    .cta-copy p{
      margin:0;
      color:var(--muted);
      max-width:62ch;
    }
    .cta-mini{
      display:grid;
      gap:12px;
      margin-top:18px;
    }
    .cta-mini-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }

    .lead-form{
      padding:20px;
      border-radius:22px;
      background:rgba(8,18,31,.62);
      border:1px solid rgba(132, 199, 255, .14);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
    }
    .form-title{
      margin:0 0 10px;
      font-size:1.05rem;
      font-weight:700;
    }
    .form-note-top{
      margin:0 0 16px;
      color:var(--muted);
      font-size:.9rem;
    }
    .form-grid{
      display:grid;
      gap:12px;
    }
    .field{
      display:grid;
      gap:8px;
    }
    .field label{
      font-size:.88rem;
      color:#dceffc;
      font-weight:600;
    }
    .field input,
    .field textarea{
      width:100%;
      min-height:50px;
      padding:14px 14px;
      border-radius:16px;
      border:1px solid rgba(132, 199, 255, .14);
      background:rgba(12,26,43,.72);
      color:#f4fbff;
      outline:none;
      transition:all .22s var(--ease);
    }
    .field textarea{
      min-height:108px;
      resize:vertical;
    }
    .field input::placeholder,
    .field textarea::placeholder{
      color:#7890a8;
    }
    .field input:hover,
    .field textarea:hover{
      border-color:rgba(104,215,255,.24);
    }
    .field input:focus,
    .field textarea:focus{
      border-color:rgba(104,215,255,.5);
      box-shadow:0 0 0 4px rgba(104,215,255,.1);
      background:rgba(12,26,43,.86);
    }
    .form-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:6px;
    }
    .form-feedback{
      margin-top:14px;
      min-height:22px;
      color:var(--success);
      font-size:.92rem;
    }
    .form-feedback.is-error{color:var(--danger)}

    .skeleton{
      position:relative;
      overflow:hidden;
      background:linear-gradient(90deg, rgba(255,255,255,.04) 25%, rgba(255,255,255,.12) 37%, rgba(255,255,255,.04) 63%);
      background-size:400% 100%;
      animation:skeleton 1.5s linear infinite;
      border-radius:12px;
    }
    .skeleton.line{height:12px}
    .skeleton.block{height:64px}
    @keyframes skeleton{
      0%{background-position:100% 50%}
      100%{background-position:0 50%}
    }

    .site-footer{
      margin-top:26px;
      padding:30px 0 22px;
      border-top:1px solid rgba(132, 199, 255, .12);
      background:linear-gradient(180deg, rgba(7,17,28,.18), rgba(5,12,22,.44));
    }
    .footer-grid{
      display:grid;
      grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,.8fr));
      gap:24px;
      align-items:start;
    }
    .footer-col strong,
    .footer-col h3{
      margin:0 0 12px;
      font-size:1rem;
      font-weight:700;
    }
    .footer-brand p{
      margin:0;
      color:var(--muted);
      max-width:42ch;
      font-size:.95rem;
    }
    .footer-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:16px;
    }
    .footer-meta span{
      display:inline-flex;
      align-items:center;
      min-height:32px;
      padding:0 11px;
      border-radius:999px;
      border:1px solid rgba(132, 199, 255, .14);
      background:rgba(10,22,38,.38);
      color:#dbeeff;
      font-size:.84rem;
    }
    .footer-col ul{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:10px;
    }
    .footer-col a{
      color:#dceffc;
      transition:color .2s var(--ease), transform .2s var(--ease);
    }
    .footer-col a:hover,
    .footer-col a:focus-visible{
      outline:none;
      color:#fff;
      transform:translateX(2px);
    }
    .footer-bottom{
      margin-top:24px;
      padding-top:18px;
      border-top:1px solid rgba(132, 199, 255, .12);
      display:flex;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      color:var(--soft);
      font-size:.88rem;
    }

    .section-anchor{scroll-margin-top:calc(var(--header-h) + 18px)}

    @media (max-width:1280px){
      .hero h1{max-width:14ch}
      .results-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .info-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:1024px){
      .nav-links{
        display:none;
        position:absolute;
        top:calc(100% + 12px);
        right:0;
        min-width:280px;
        padding:10px;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        background:rgba(8,18,31,.94);
        box-shadow:var(--shadow);
      }
      .nav-links a{
        justify-content:flex-start;
        width:100%;
      }
      .nav-shell.is-open .nav-links{display:flex}
      .menu-toggle{display:inline-flex}
      .header-action{display:none}
      .hero-grid,
      .pain-grid,
      .catalog-layout,
      .reviews-grid,
      .cta-grid,
      .feature-entry{
        grid-template-columns:1fr;
      }
      .catalog-aside{position:relative;top:auto}
      .feature-entry{padding:22px}
      .entry-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:768px){
      :root{--gap:18px}
      .container{width:min(var(--container), calc(100% - 28px))}
      .header-inner{min-height:76px}
      .brand-mark{width:46px;height:46px;border-radius:15px}
      .brand-title{font-size:.98rem}
      .hero-copy,.cover-card,.pain-panel,.compare,.catalog-aside,.review-note,.info-strip,.cta-card{padding:20px}
      .hero h1{max-width:none;font-size:clamp(1.9rem, 8vw, 2.6rem)}
      .hero-lead{font-size:.98rem}
      .hero-stat{grid-template-columns:1fr}
      .results-grid,
      .news-grid,
      .info-grid{
        grid-template-columns:1fr;
      }
      .section-head{flex-direction:column;align-items:flex-start}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{flex-direction:column}
      .step-pill{
        min-height:46px;
        padding:0 14px;
      }
    }
    @media (max-width:520px){
      .container{width:min(var(--container), calc(100% - 20px))}
      .header-inner{gap:12px}
      .brand-sub{display:none}
      .brand-title{white-space:normal}
      .nav-shell{margin-left:auto}
      .step-nav-wrap{padding-bottom:10px}
      .step-pill{font-size:.85rem}
      .hero-copy,.cover-card,.pain-panel,.compare,.catalog-aside,.review-note,.info-strip,.cta-card{padding:18px}
      .hero-actions,.form-actions,.cta-mini-row{gap:10px}
      .btn,.header-action{min-height:46px}
      .faq-item summary{padding:16px}
      .faq-body{padding:0 16px 16px}
      .entry-card,.news-card,.quote-card,.metric-card,.info-card{padding:16px}
      .mini-badge{padding:7px 10px}
    }

/* roulang page: category2 */
:root {
      --bg: #061225;
      --bg-deep: #030914;
      --panel: rgba(13, 32, 62, .72);
      --panel-soft: rgba(20, 47, 86, .52);
      --panel-bright: rgba(18, 61, 112, .78);
      --text: #eef7ff;
      --text-strong: #ffffff;
      --muted: #9fb7d2;
      --weak: #6f89a8;
      --line: rgba(120, 190, 255, .18);
      --line-strong: rgba(86, 211, 255, .46);
      --cyan: #51e5ff;
      --blue: #4d8dff;
      --violet: #8b6bff;
      --green: #55f0ba;
      --orange: #ff9d66;
      --danger: #ff6f7d;
      --shadow: 0 24px 80px rgba(0, 50, 120, .36);
      --glow: 0 0 0 1px rgba(81, 229, 255, .2), 0 0 32px rgba(81, 229, 255, .18);
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --container: 1240px;
      --ease: cubic-bezier(.2, .8, .2, 1);
      --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      background: var(--bg-deep);
    }

    body {
      min-height: 100vh;
      font-family: var(--font);
      line-height: 1.7;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(77, 141, 255, .22), transparent 34%),
        radial-gradient(circle at 82% 16%, rgba(139, 107, 255, .18), transparent 30%),
        radial-gradient(circle at 58% 78%, rgba(81, 229, 255, .12), transparent 34%),
        linear-gradient(180deg, #071832 0%, #061225 46%, #030914 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(130, 190, 255, .06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(130, 190, 255, .06) 1px, transparent 1px);
      background-size: 36px 36px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,.75), rgba(0,0,0,.12));
      z-index: -2;
    }

    body::after {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      opacity: .22;
      background-image:
        radial-gradient(circle at 20% 20%, rgba(255,255,255,.16) 0 1px, transparent 1px),
        radial-gradient(circle at 80% 30%, rgba(255,255,255,.12) 0 1px, transparent 1px);
      background-size: 90px 90px, 130px 130px;
      z-index: -1;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    button,
    input,
    textarea,
    select {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    input,
    textarea {
      width: 100%;
      color: var(--text);
      background: rgba(4, 15, 32, .72);
      border: 1px solid rgba(126, 190, 255, .22);
      border-radius: 15px;
      outline: none;
      transition: border-color .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease);
    }

    input:focus,
    textarea:focus {
      border-color: rgba(81, 229, 255, .78);
      box-shadow: 0 0 0 4px rgba(81, 229, 255, .12), 0 0 28px rgba(81, 229, 255, .12);
      background: rgba(7, 24, 49, .9);
    }

    input::placeholder,
    textarea::placeholder {
      color: rgba(159, 183, 210, .68);
    }

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

    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid rgba(120, 190, 255, .14);
      background: rgba(5, 14, 29, .78);
      backdrop-filter: blur(20px);
      box-shadow: 0 18px 50px rgba(0, 0, 0, .24);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
      min-height: 82px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 13px;
      min-width: 280px;
      transition: transform .22s var(--ease), opacity .22s var(--ease);
    }

    .brand:hover {
      transform: translateY(-1px);
    }

    .brand-mark {
      width: 48px;
      height: 48px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      background: linear-gradient(135deg, rgba(81, 229, 255, .18), rgba(139, 107, 255, .18));
      border: 1px solid rgba(81, 229, 255, .32);
      box-shadow: var(--glow);
      flex: 0 0 auto;
    }

    .brand-mark svg {
      width: 27px;
      height: 27px;
      fill: none;
      stroke: var(--cyan);
      stroke-width: 1.8;
      stroke-linecap: round;
      stroke-linejoin: round;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      gap: 1px;
    }

    .brand-title {
      font-weight: 700;
      letter-spacing: .01em;
      color: var(--text-strong);
      font-size: 16px;
      white-space: nowrap;
    }

    .brand-sub {
      color: var(--muted);
      font-size: 12px;
      white-space: nowrap;
    }

    .nav-shell {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 14px;
      flex: 1;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 7px;
      border: 1px solid rgba(120, 190, 255, .14);
      border-radius: 999px;
      background: rgba(8, 22, 44, .62);
    }

    .nav-links a {
      position: relative;
      padding: 10px 15px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 600;
      transition: color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
    }

    .nav-links a:hover {
      color: var(--text);
      background: rgba(81, 229, 255, .09);
      transform: translateY(-1px);
    }

    .nav-links a.active {
      color: #061225;
      background: linear-gradient(135deg, var(--cyan), #88f4ff);
      box-shadow: 0 0 24px rgba(81, 229, 255, .28);
    }

    .header-action,
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 0 18px;
      color: #031226;
      font-weight: 700;
      border-radius: 999px;
      background: linear-gradient(135deg, #5de7ff 0%, #7df7d6 100%);
      box-shadow: 0 12px 34px rgba(81, 229, 255, .25), inset 0 0 0 1px rgba(255,255,255,.32);
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), filter .22s var(--ease);
      white-space: nowrap;
    }

    .header-action:hover,
    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 18px 44px rgba(81, 229, 255, .35), 0 0 0 1px rgba(81, 229, 255, .42);
      filter: saturate(1.08);
    }

    .header-action:active,
    .btn-primary:active {
      transform: translateY(0);
      filter: brightness(.96);
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 18px;
      color: var(--text);
      font-weight: 700;
      border: 1px solid rgba(126, 190, 255, .28);
      border-radius: 999px;
      background: rgba(12, 30, 58, .58);
      transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease);
    }

    .btn-secondary:hover {
      transform: translateY(-3px);
      border-color: rgba(81, 229, 255, .64);
      background: rgba(20, 54, 96, .66);
      box-shadow: var(--glow);
    }

    .btn-secondary.disabled,
    .btn-primary.disabled,
    button:disabled {
      opacity: .48;
      cursor: not-allowed;
      transform: none;
      box-shadow: none;
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      align-items: center;
      justify-content: center;
      border-radius: 14px;
      color: var(--text);
      background: rgba(12, 30, 58, .72);
      border: 1px solid rgba(120, 190, 255, .18);
    }

    .menu-toggle svg {
      width: 23px;
      height: 23px;
      fill: none;
      stroke: currentColor;
      stroke-width: 2;
      stroke-linecap: round;
    }

    .step-nav-wrap {
      padding: 0 0 14px;
      overflow-x: auto;
      scrollbar-width: none;
    }

    .step-nav-wrap::-webkit-scrollbar {
      display: none;
    }

    .step-nav {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: max-content;
    }

    .step-pill {
      position: relative;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 13px;
      border-radius: 999px;
      color: var(--weak);
      font-size: 13px;
      font-weight: 700;
      border: 1px solid rgba(120, 190, 255, .13);
      background: rgba(8, 22, 44, .54);
      transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
    }

    .step-pill::before {
      content: attr(data-step);
      width: 22px;
      height: 22px;
      display: inline-grid;
      place-items: center;
      border-radius: 999px;
      color: var(--weak);
      background: rgba(255,255,255,.06);
      font-size: 12px;
    }

    .step-pill:hover,
    .step-pill.visited {
      color: var(--text);
      border-color: rgba(81, 229, 255, .3);
      background: rgba(81, 229, 255, .08);
    }

    .step-pill.active {
      color: #061225;
      border-color: transparent;
      background: linear-gradient(135deg, rgba(81,229,255,.96), rgba(125,247,214,.96));
      box-shadow: 0 0 22px rgba(81, 229, 255, .2);
    }

    .step-pill.active::before {
      color: #031226;
      background: rgba(255,255,255,.45);
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 86px 0;
      position: relative;
    }

    .section.compact {
      padding: 58px 0;
    }

    .hero {
      padding: 58px 0 86px;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      margin-bottom: 22px;
      color: var(--muted);
      font-size: 13px;
    }

    .breadcrumb a {
      color: var(--cyan);
      transition: opacity .2s var(--ease);
    }

    .breadcrumb a:hover {
      opacity: .76;
    }

    .breadcrumb span:not(:last-child)::after {
      content: "/";
      margin-left: 8px;
      color: rgba(159, 183, 210, .5);
    }

    .hero-strip {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
      gap: 28px;
      align-items: stretch;
    }

    .glass-card {
      position: relative;
      border: 1px solid var(--line);
      border-radius: var(--radius-xl);
      background: linear-gradient(180deg, rgba(16, 39, 73, .74), rgba(8, 22, 44, .58));
      backdrop-filter: blur(18px);
      box-shadow: var(--shadow);
      overflow: hidden;
      transition: transform .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
    }

    .glass-card::before {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background:
        linear-gradient(135deg, rgba(255,255,255,.09), transparent 32%),
        radial-gradient(circle at 20% 0%, rgba(81, 229, 255, .13), transparent 36%);
      opacity: .9;
    }

    .glass-card > * {
      position: relative;
      z-index: 1;
    }

    .glass-card:hover {
      transform: translateY(-5px);
      border-color: rgba(81, 229, 255, .42);
      box-shadow: 0 30px 90px rgba(0, 82, 170, .42), 0 0 36px rgba(81, 229, 255, .12);
      background: linear-gradient(180deg, rgba(20, 51, 91, .82), rgba(10, 27, 52, .64));
    }

    .hero-main {
      padding: 34px;
      min-height: 410px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .eyebrow {
      display: inline-flex;
      width: fit-content;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      color: #bdf8ff;
      font-size: 13px;
      font-weight: 700;
      border: 1px solid rgba(81, 229, 255, .28);
      background: rgba(81, 229, 255, .08);
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 18px rgba(85, 240, 186, .8);
    }

    h1,
    h2,
    h3 {
      color: var(--text-strong);
      line-height: 1.18;
      letter-spacing: -.02em;
    }

    h1 {
      margin-top: 18px;
      max-width: 790px;
      font-size: clamp(34px, 5vw, 62px);
      font-weight: 700;
    }

    .hero-lead {
      margin-top: 18px;
      max-width: 720px;
      color: var(--muted);
      font-size: 17px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    .tag,
    .filter-chip,
    .mini-badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      border-radius: 999px;
      color: var(--muted);
      background: rgba(10, 28, 55, .62);
      border: 1px solid rgba(126, 190, 255, .16);
      font-weight: 700;
      transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
    }

    .tag {
      padding: 8px 12px;
      font-size: 13px;
    }

    .tag:hover,
    .filter-chip:hover,
    .filter-chip.active {
      color: var(--text);
      border-color: rgba(81, 229, 255, .46);
      background: rgba(81, 229, 255, .1);
      box-shadow: 0 0 22px rgba(81, 229, 255, .1);
      transform: translateY(-1px);
    }

    .tag.disabled,
    .filter-chip.disabled {
      opacity: .45;
      cursor: not-allowed;
      pointer-events: none;
    }

    .hero-side {
      padding: 24px;
    }

    .matrix-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 18px;
    }

    .matrix-head strong {
      font-size: 17px;
    }

    .status-dot {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      color: var(--green);
      font-size: 12px;
      font-weight: 700;
    }

    .status-dot::before {
      content: "";
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 18px rgba(85, 240, 186, .7);
    }

    .icon-matrix {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-bottom: 18px;
    }

    .matrix-cell {
      min-height: 92px;
      padding: 13px;
      border-radius: 18px;
      border: 1px solid rgba(126, 190, 255, .16);
      background: rgba(5, 17, 37, .54);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform .22s var(--ease), border-color .22s var(--ease), background .22s var(--ease);
    }

    .matrix-cell:hover {
      transform: translateY(-4px);
      border-color: rgba(81, 229, 255, .46);
      background: rgba(12, 39, 75, .72);
    }

    .matrix-icon {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      color: var(--cyan);
      background: rgba(81, 229, 255, .1);
      border: 1px solid rgba(81, 229, 255, .2);
      font-weight: 800;
    }

    .matrix-cell span:last-child {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .status-panel {
      padding: 15px;
      border-radius: 18px;
      border: 1px solid rgba(126, 190, 255, .16);
      background: rgba(3, 12, 28, .52);
    }

    .status-line {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      margin-bottom: 10px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .progress-bar {
      height: 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.08);
      overflow: hidden;
    }

    .progress-fill {
      height: 100%;
      width: 76%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--cyan), var(--violet));
      box-shadow: 0 0 22px rgba(81, 229, 255, .42);
    }

    .section-title {
      display: grid;
      grid-template-columns: minmax(0, .9fr) minmax(280px, .55fr);
      gap: 24px;
      align-items: end;
      margin-bottom: 28px;
    }

    .section-title h2 {
      font-size: clamp(26px, 3vw, 42px);
    }

    .section-title p {
      color: var(--muted);
      font-size: 15px;
    }

    .topic-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.25fr) minmax(300px, .75fr);
      gap: 24px;
    }

    .topic-feature {
      padding: 28px;
      min-height: 360px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      background:
        linear-gradient(135deg, rgba(81, 229, 255, .16), transparent 45%),
        linear-gradient(180deg, rgba(18, 53, 96, .78), rgba(8, 24, 48, .62));
    }

    .topic-feature h2 {
      margin-top: 14px;
      font-size: clamp(26px, 3vw, 44px);
    }

    .topic-feature p {
      margin-top: 14px;
      color: var(--muted);
      max-width: 720px;
    }

    .topic-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 24px;
    }

    .stat-mini {
      padding: 15px;
      border-radius: 18px;
      background: rgba(3, 12, 28, .48);
      border: 1px solid rgba(126, 190, 255, .14);
    }

    .stat-mini strong {
      display: block;
      color: var(--cyan);
      font-size: 24px;
      line-height: 1.1;
      text-shadow: 0 0 18px rgba(81,229,255,.26);
    }

    .stat-mini span {
      display: block;
      margin-top: 5px;
      color: var(--muted);
      font-size: 12px;
    }

    .topic-stack {
      display: grid;
      gap: 18px;
    }

    .mid-card {
      padding: 22px;
      min-height: 171px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      background: rgba(13, 32, 62, .58);
      backdrop-filter: blur(18px);
      transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
    }

    .mid-card:hover {
      transform: translateY(-5px);
      border-color: rgba(81, 229, 255, .42);
      box-shadow: var(--glow);
    }

    .mid-card h3 {
      font-size: 20px;
      margin: 10px 0 8px;
    }

    .mid-card p {
      color: var(--muted);
      font-size: 14px;
    }

    .mini-badge {
      padding: 6px 10px;
      width: fit-content;
      color: #bdf8ff;
      font-size: 12px;
    }

    .tabs-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 8px 0 24px;
    }

    .filter-chip {
      padding: 9px 14px;
      font-size: 13px;
      cursor: pointer;
    }

    .content-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 320px;
      gap: 24px;
      align-items: start;
    }

    .masonry {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .topic-card {
      padding: 22px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      background: rgba(12, 31, 60, .62);
      backdrop-filter: blur(16px);
      transition: transform .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
    }

    .topic-card:nth-child(2n) {
      transform: translateY(20px);
    }

    .topic-card:nth-child(2n):hover {
      transform: translateY(14px);
    }

    .topic-card:hover {
      transform: translateY(-6px);
      border-color: rgba(81, 229, 255, .43);
      box-shadow: 0 20px 58px rgba(0, 82, 170, .28);
    }

    .topic-card h3 {
      margin: 13px 0 8px;
      font-size: 21px;
    }

    .topic-card p {
      color: var(--muted);
      font-size: 14px;
    }

    .card-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 16px;
    }

    .card-meta span {
      padding: 5px 9px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 700;
      background: rgba(255,255,255,.05);
      border: 1px solid rgba(126, 190, 255, .12);
    }

    .card-link {
      display: inline-flex;
      margin-top: 16px;
      color: var(--cyan);
      font-weight: 800;
      font-size: 14px;
    }

    .side-panel {
      position: sticky;
      top: 122px;
      display: grid;
      gap: 16px;
    }

    .side-card {
      padding: 20px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      background: rgba(6, 20, 43, .72);
      backdrop-filter: blur(18px);
    }

    .side-card h3 {
      font-size: 18px;
      margin-bottom: 14px;
    }

    .hot-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
    }

    .hot-tags a {
      padding: 7px 10px;
      border-radius: 999px;
      color: var(--muted);
      background: rgba(255,255,255,.05);
      border: 1px solid rgba(126, 190, 255, .13);
      font-size: 12px;
      font-weight: 700;
      transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
    }

    .hot-tags a:hover {
      color: var(--text);
      border-color: rgba(81, 229, 255, .45);
      background: rgba(81, 229, 255, .09);
    }

    .quick-list {
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .quick-list a,
    .quick-list li {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 10px 0;
      color: var(--muted);
      border-bottom: 1px solid rgba(126, 190, 255, .1);
      font-size: 14px;
    }

    .quick-list a:hover {
      color: var(--cyan);
    }

    .quick-list li:last-child,
    .quick-list a:last-child {
      border-bottom: 0;
    }

    .pain-board {
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      gap: 24px;
      align-items: stretch;
    }

    .pain-aside {
      padding: 26px;
    }

    .pain-aside h2 {
      font-size: clamp(25px, 3vw, 38px);
    }

    .pain-aside p {
      margin-top: 12px;
      color: var(--muted);
    }

    .warning-strip {
      margin-top: 24px;
      padding: 14px 16px;
      border-radius: 18px;
      color: #ffd9c8;
      border: 1px solid rgba(255, 157, 102, .28);
      background: rgba(255, 157, 102, .08);
      font-size: 14px;
    }

    .pain-list {
      display: grid;
      gap: 14px;
    }

    .pain-item {
      display: grid;
      grid-template-columns: 54px minmax(0, 1fr);
      gap: 16px;
      padding: 18px;
      border-radius: 20px;
      border: 1px solid rgba(126, 190, 255, .15);
      background: rgba(11, 30, 58, .56);
      transition: transform .22s var(--ease), border-color .22s var(--ease), background .22s var(--ease);
    }

    .pain-item:hover {
      transform: translateX(4px);
      border-color: rgba(81, 229, 255, .42);
      background: rgba(15, 43, 80, .68);
    }

    .num {
      width: 54px;
      height: 54px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      color: var(--cyan);
      font-weight: 800;
      border: 1px solid rgba(81, 229, 255, .24);
      background: rgba(81, 229, 255, .09);
    }

    .pain-item h3 {
      font-size: 18px;
      margin-bottom: 3px;
    }

    .pain-item p {
      color: var(--muted);
      font-size: 14px;
    }

    .solution-map {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 24px;
    }

    .map-card {
      padding: 28px;
      min-height: 390px;
    }

    .route-list {
      margin-top: 22px;
      display: grid;
      gap: 14px;
    }

    .route-item {
      display: grid;
      grid-template-columns: 42px minmax(0, 1fr);
      gap: 14px;
      align-items: start;
      padding: 14px;
      border-radius: 18px;
      background: rgba(3, 12, 28, .38);
      border: 1px solid rgba(126, 190, 255, .12);
    }

    .route-item b {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      color: #031226;
      background: linear-gradient(135deg, var(--cyan), var(--green));
    }

    .route-item h3 {
      font-size: 17px;
      margin-bottom: 2px;
    }

    .route-item p {
      color: var(--muted);
      font-size: 14px;
    }

    .solution-cards {
      display: grid;
      gap: 18px;
    }

    .check-card {
      padding: 22px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      background: rgba(11, 30, 58, .58);
      transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
    }

    .check-card:hover {
      transform: translateY(-5px);
      border-color: rgba(81, 229, 255, .42);
      box-shadow: var(--glow);
    }

    .check-card h3 {
      font-size: 20px;
      margin-bottom: 8px;
    }

    .check-card p {
      color: var(--muted);
      font-size: 14px;
    }

    .results-wall {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    .result-card {
      padding: 22px;
      min-height: 168px;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(81, 229, 255, .2);
      background:
        radial-gradient(circle at 50% 0%, rgba(81, 229, 255, .18), transparent 55%),
        rgba(10, 31, 61, .7);
      box-shadow: 0 18px 58px rgba(0, 75, 160, .22);
      transition: transform .22s var(--ease), border-color .22s var(--ease);
    }

    .result-card:hover {
      transform: translateY(-6px);
      border-color: rgba(81, 229, 255, .56);
    }

    .result-card strong {
      display: block;
      color: var(--cyan);
      font-size: clamp(30px, 4vw, 46px);
      line-height: 1;
      text-shadow: 0 0 24px rgba(81,229,255,.32);
    }

    .result-card span {
      display: block;
      margin-top: 12px;
      color: var(--text);
      font-weight: 700;
    }

    .result-card p {
      margin-top: 8px;
      color: var(--muted);
      font-size: 13px;
    }

    .review-grid {
      display: grid;
      grid-template-columns: .9fr 1.1fr .86fr;
      gap: 18px;
      align-items: start;
    }

    .review-card {
      padding: 22px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      background: rgba(11, 30, 58, .54);
    }

    .review-card:nth-child(2) {
      margin-top: 28px;
    }

    .quote {
      color: var(--text);
      font-size: 16px;
      font-weight: 600;
    }

    .reviewer {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-top: 18px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .avatar {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #031226;
      background: linear-gradient(135deg, var(--cyan), var(--violet));
      font-weight: 800;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 24px;
      align-items: start;
    }

    .faq-copy {
      padding: 26px;
    }

    .faq-copy p {
      margin-top: 12px;
      color: var(--muted);
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      border-radius: 18px;
      border: 1px solid rgba(126, 190, 255, .16);
      background: rgba(9, 27, 54, .62);
      overflow: hidden;
      transition: border-color .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease);
    }

    .faq-item.active {
      border-color: rgba(81, 229, 255, .48);
      box-shadow: var(--glow);
      background: rgba(13, 39, 74, .72);
    }

    .faq-question {
      width: 100%;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      color: var(--text);
      background: transparent;
      text-align: left;
      font-weight: 700;
    }

    .faq-question::after {
      content: "⌄";
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: var(--cyan);
      background: rgba(81, 229, 255, .09);
      transition: transform .22s var(--ease);
      flex: 0 0 auto;
    }

    .faq-item.active .faq-question::after {
      transform: rotate(180deg);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .28s var(--ease);
    }

    .faq-answer p {
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 14px;
    }

    .cta-panel {
      display: grid;
      grid-template-columns: minmax(0, .95fr) minmax(320px, .75fr);
      gap: 26px;
      padding: 30px;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(81, 229, 255, .26);
      background:
        radial-gradient(circle at 18% 0%, rgba(81, 229, 255, .24), transparent 36%),
        radial-gradient(circle at 86% 20%, rgba(139, 107, 255, .18), transparent 36%),
        rgba(11, 30, 58, .72);
      box-shadow: 0 30px 100px rgba(0, 74, 170, .34);
    }

    .cta-copy h2 {
      font-size: clamp(27px, 3vw, 44px);
      margin-top: 12px;
    }

    .cta-copy p {
      margin-top: 14px;
      color: var(--muted);
    }

    .form-card {
      padding: 20px;
      border-radius: 22px;
      background: rgba(3, 12, 28, .44);
      border: 1px solid rgba(126, 190, 255, .16);
    }

    .form-grid {
      display: grid;
      gap: 12px;
    }

    .form-grid label {
      display: grid;
      gap: 7px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .form-grid input,
    .form-grid textarea {
      min-height: 50px;
      padding: 12px 14px;
    }

    .form-grid textarea {
      min-height: 92px;
      resize: vertical;
    }

    .form-tip {
      min-height: 20px;
      color: var(--danger);
      font-size: 12px;
    }

    .site-footer {
      padding: 58px 0 28px;
      border-top: 1px solid rgba(126, 190, 255, .14);
      background: rgba(3, 9, 20, .74);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.35fr .7fr .7fr 1fr;
      gap: 24px;
    }

    .footer-col {
      padding: 18px;
      border-radius: 20px;
      background: rgba(10, 25, 49, .42);
      border: 1px solid rgba(126, 190, 255, .1);
    }

    .footer-brand strong {
      display: block;
      color: var(--text-strong);
      font-size: 18px;
      margin-bottom: 10px;
    }

    .footer-col p,
    .footer-col li,
    .footer-bottom {
      color: var(--muted);
      font-size: 13px;
    }

    .footer-col h3 {
      font-size: 15px;
      margin-bottom: 10px;
    }

    .footer-col ul {
      list-style: none;
      display: grid;
      gap: 8px;
    }

    .footer-col a {
      color: var(--muted);
      transition: color .2s var(--ease);
    }

    .footer-col a:hover {
      color: var(--cyan);
    }

    .footer-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 14px;
    }

    .footer-meta span {
      padding: 5px 9px;
      border-radius: 999px;
      color: var(--muted);
      background: rgba(255,255,255,.05);
      border: 1px solid rgba(126, 190, 255, .1);
      font-size: 12px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      margin-top: 24px;
      padding-top: 18px;
      border-top: 1px solid rgba(126, 190, 255, .12);
    }

    .skeleton {
      position: relative;
      overflow: hidden;
      background: rgba(255,255,255,.06);
      border-radius: 12px;
    }

    .skeleton::after {
      content: "";
      position: absolute;
      inset: 0;
      transform: translateX(-100%);
      background: linear-gradient(90deg, transparent, rgba(255,255,255,.12), transparent);
      animation: loading 1.5s infinite;
    }

    @keyframes loading {
      100% { transform: translateX(100%); }
    }

    @media (max-width: 1100px) {
      .header-inner {
        min-height: 76px;
      }

      .brand {
        min-width: auto;
      }

      .brand-sub {
        display: none;
      }

      .hero-strip,
      .topic-layout,
      .content-grid,
      .pain-board,
      .solution-map,
      .faq-wrap,
      .cta-panel {
        grid-template-columns: 1fr;
      }

      .side-panel {
        position: static;
        grid-template-columns: repeat(2, 1fr);
      }

      .results-wall {
        grid-template-columns: repeat(2, 1fr);
      }

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

    @media (max-width: 820px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .nav-links {
        position: fixed;
        left: 14px;
        right: 14px;
        top: 76px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        border-radius: 22px;
        background: rgba(5, 14, 29, .95);
        box-shadow: 0 24px 70px rgba(0,0,0,.42);
      }

      .nav-links.open {
        display: flex;
      }

      .nav-links a {
        text-align: center;
        padding: 13px;
      }

      .header-action {
        display: none;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .section {
        padding: 64px 0;
      }

      .hero {
        padding: 34px 0 64px;
      }

      .hero-main,
      .topic-feature,
      .map-card,
      .cta-panel {
        padding: 22px;
      }

      .section-title {
        grid-template-columns: 1fr;
        gap: 10px;
      }

      .masonry,
      .side-panel,
      .review-grid {
        grid-template-columns: 1fr;
      }

      .topic-card:nth-child(2n),
      .topic-card:nth-child(2n):hover,
      .review-card:nth-child(2) {
        transform: none;
        margin-top: 0;
      }

      .icon-matrix,
      .topic-stats {
        grid-template-columns: repeat(2, 1fr);
      }

      .hero-actions .btn-primary,
      .hero-actions .btn-secondary {
        flex: 1 1 140px;
      }
    }

    @media (max-width: 560px) {
      .brand-title {
        max-width: 210px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .brand-mark {
        width: 42px;
        height: 42px;
        border-radius: 14px;
      }

      h1 {
        font-size: 32px;
      }

      .hero-lead {
        font-size: 15px;
      }

      .icon-matrix,
      .topic-stats,
      .results-wall,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .pain-item,
      .route-item {
        grid-template-columns: 1fr;
      }

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

      .cta-panel {
        padding: 18px;
      }

      .step-pill {
        padding: 7px 11px;
      }
    }