/* roulang page: index */
:root{
      --bg:#eef2f7;
      --bg-soft:#f7f8fc;
      --bg-dark:#0d1018;
      --bg-dark-2:#121725;
      --panel:#ffffff;
      --panel-soft:#f6f8fd;
      --panel-dark:#161b2a;
      --panel-dark-2:#1c2131;
      --text:#142033;
      --text-2:#202a3d;
      --muted:#647089;
      --muted-dark:#b2bdd3;
      --line:rgba(20,32,51,.10);
      --line-2:rgba(20,32,51,.16);
      --line-dark:rgba(255,255,255,.10);
      --primary:#2cf0d0;
      --primary-2:#7d5cff;
      --primary-3:#4bc8ff;
      --warning:#f2b35e;
      --warning-soft:rgba(242,179,94,.16);
      --shadow:0 16px 44px rgba(15,20,35,.10);
      --shadow-strong:0 18px 44px rgba(0,0,0,.24);
      --radius:20px;
      --radius-sm:14px;
      --radius-lg:28px;
      --container:1200px;
      --header-h:76px;
      --transition:180ms ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--text);
      background:
        linear-gradient(180deg, rgba(13,16,24,.99) 0 640px, var(--bg) 640px 100%);
      line-height:1.75;
      text-rendering:optimizeLegibility;
      -webkit-font-smoothing:antialiased;
      -moz-osx-font-smoothing:grayscale;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        radial-gradient(circle at 15% 12%, rgba(44,240,208,.14), transparent 24%),
        radial-gradient(circle at 86% 8%, rgba(125,92,255,.16), transparent 28%),
        radial-gradient(circle at 78% 42%, rgba(75,200,255,.10), transparent 22%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button{border:0;background:none;padding:0}
    ::selection{background:rgba(44,240,208,.24);color:#091018}

    .skip-link{
      position:absolute;
      left:16px;
      top:-56px;
      z-index:2000;
      padding:10px 14px;
      border-radius:999px;
      background:#fff;
      color:var(--text);
      box-shadow:var(--shadow);
      transition:top var(--transition);
    }
    .skip-link:focus{top:16px}

    .container{
      width:min(100% - 32px, var(--container));
      margin:0 auto;
    }

    .topbar{
      background:rgba(8,10,16,.94);
      color:rgba(255,255,255,.84);
      font-size:.9rem;
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .topbar-inner{
      min-height:38px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:8px 0;
    }
    .topbar strong{
      color:#fff;
      font-weight:700;
    }
    .topbar span{
      color:rgba(255,255,255,.72);
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1200;
      background:rgba(10,12,18,.92);
      backdrop-filter:saturate(150%) blur(14px);
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .nav-wrap{
      min-height:calc(var(--header-h) - 1px);
      display:flex;
      align-items:center;
      gap:16px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:14px;
      color:#fff;
      min-width:0;
    }
    .brand-badge{
      width:44px;
      height:44px;
      border-radius:15px;
      display:grid;
      place-items:center;
      background:linear-gradient(135deg, var(--primary), var(--primary-2));
      color:#091018;
      font-weight:800;
      letter-spacing:.08em;
      box-shadow:0 10px 24px rgba(44,240,208,.18);
      flex:0 0 auto;
    }
    .brand-text{
      min-width:0;
      display:flex;
      flex-direction:column;
      line-height:1.15;
    }
    .brand-text strong{
      font-size:1.04rem;
      font-weight:800;
      color:#fff;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-text small{
      color:rgba(255,255,255,.68);
      font-size:.82rem;
      margin-top:4px;
    }

    .site-nav{
      margin-left:auto;
      display:flex;
      align-items:center;
      gap:10px;
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:44px;
      padding:10px 16px;
      border-radius:999px;
      color:rgba(255,255,255,.82);
      border:1px solid transparent;
      transition:transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      color:#fff;
      background:rgba(255,255,255,.06);
      border-color:rgba(255,255,255,.10);
      transform:translateY(-1px);
      outline:none;
    }
    .nav-link.active{
      color:#091018;
      background:linear-gradient(135deg, var(--primary), #aaf6ec);
      box-shadow:0 10px 28px rgba(44,240,208,.18);
      font-weight:700;
    }

    .menu-toggle{
      display:none;
      margin-left:auto;
      width:46px;
      height:46px;
      border-radius:14px;
      align-items:center;
      justify-content:center;
      gap:4px;
      border:1px solid rgba(255,255,255,.12);
      color:#fff;
      background:rgba(255,255,255,.04);
      transition:background var(--transition), border-color var(--transition), transform var(--transition);
    }
    .menu-toggle:hover,
    .menu-toggle:focus-visible{
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.18);
      outline:none;
      transform:translateY(-1px);
    }
    .menu-bars{
      display:grid;
      gap:4px;
    }
    .menu-bars span{
      width:18px;
      height:2px;
      border-radius:999px;
      background:currentColor;
      display:block;
    }

    main{display:block}
    .hero{
      position:relative;
      overflow:hidden;
      color:#fff;
      padding:72px 0 52px;
      background:
        linear-gradient(145deg, rgba(8,10,16,.92), rgba(22,12,38,.88) 52%, rgba(10,14,24,.95)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    }
    .hero::before{
      content:"";
      position:absolute;
      inset:0;
      background-image:
        linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
      background-size:56px 56px;
      opacity:.14;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.95), rgba(0,0,0,.45) 76%, transparent);
      pointer-events:none;
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:auto -140px -160px auto;
      width:420px;
      height:420px;
      background:radial-gradient(circle, rgba(44,240,208,.18), transparent 64%);
      filter:blur(8px);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:30px;
      align-items:center;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:36px;
      padding:0 14px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.10);
      color:#e7ebf4;
      font-size:.92rem;
      letter-spacing:.02em;
      margin-bottom:16px;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 4px rgba(44,240,208,.16);
      flex:0 0 auto;
    }
    .hero h1{
      margin:0;
      font-size:clamp(2.5rem, 5vw, 4.55rem);
      line-height:1.08;
      letter-spacing:-.04em;
      max-width:10.5ch;
      text-wrap:balance;
    }
    .hero .lead{
      margin:18px 0 0;
      max-width:60ch;
      color:#d6deeb;
      font-size:1.03rem;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:28px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 18px;
      border-radius:999px;
      font-weight:700;
      letter-spacing:.01em;
      transition:transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition), filter var(--transition);
      border:1px solid transparent;
      cursor:pointer;
      white-space:nowrap;
    }
    .btn:hover,
    .btn:focus-visible{
      transform:translateY(-2px);
      outline:none;
    }
    .btn-primary{
      background:linear-gradient(135deg, var(--primary), #aaf6ec);
      color:#081018;
      box-shadow:0 14px 32px rgba(44,240,208,.18);
    }
    .btn-primary:hover,
    .btn-primary:focus-visible{
      filter:saturate(1.06);
      box-shadow:0 18px 36px rgba(44,240,208,.24);
    }
    .btn-ghost{
      background:rgba(255,255,255,.04);
      border-color:rgba(255,255,255,.16);
      color:#fff;
    }
    .btn-ghost:hover,
    .btn-ghost:focus-visible{
      background:rgba(255,255,255,.08);
      border-color:rgba(255,255,255,.26);
    }

    .chip-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      min-height:36px;
      padding:0 14px;
      border-radius:999px;
      color:#eff4ff;
      background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.10);
      font-size:.92rem;
    }

    .hero-panel{
      display:grid;
      gap:16px;
      align-self:stretch;
    }
    .visual-card{
      position:relative;
      overflow:hidden;
      border-radius:26px;
      background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
      border:1px solid rgba(255,255,255,.12);
      box-shadow:var(--shadow-strong);
      isolation:isolate;
    }
    .visual-card img{
      width:100%;
      aspect-ratio: 4 / 3;
      object-fit:cover;
      filter:saturate(1.04) contrast(1.04);
      transform:scale(1.02);
    }
    .visual-overlay{
      position:absolute;
      left:18px;
      right:18px;
      bottom:18px;
      border-radius:20px;
      padding:18px;
      background:rgba(8,10,16,.74);
      border:1px solid rgba(255,255,255,.12);
      backdrop-filter:blur(10px);
    }
    .visual-overlay .label{
      display:inline-flex;
      align-items:center;
      min-height:32px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(44,240,208,.12);
      color:#bcfff4;
      border:1px solid rgba(44,240,208,.16);
      font-size:.84rem;
      margin-bottom:12px;
    }
    .visual-overlay h2{
      margin:0 0 8px;
      font-size:1.22rem;
      line-height:1.25;
      color:#fff;
    }
    .visual-overlay p{
      margin:0;
      color:rgba(255,255,255,.76);
      font-size:.95rem;
    }
    .panel-list{
      list-style:none;
      margin:14px 0 0;
      padding:0;
      display:grid;
      gap:10px;
    }
    .panel-list li{
      display:flex;
      align-items:flex-start;
      gap:10px;
      color:#d8e0ef;
      font-size:.94rem;
    }
    .panel-list li::before{
      content:"";
      width:10px;
      height:10px;
      margin-top:6px;
      border-radius:50%;
      background:var(--primary);
      box-shadow:0 0 0 4px rgba(44,240,208,.12);
      flex:0 0 auto;
    }
    .panel-strip{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:12px;
    }
    .panel-strip > div{
      padding:16px;
      border-radius:18px;
      background:rgba(255,255,255,.05);
      border:1px solid rgba(255,255,255,.10);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
    }
    .panel-strip strong{
      display:block;
      color:#fff;
      font-size:.98rem;
      margin-bottom:4px;
    }
    .panel-strip span{
      color:rgba(255,255,255,.72);
      font-size:.92rem;
    }

    .section{
      padding:76px 0;
    }
    .section--light{
      background:var(--bg);
      color:var(--text);
    }
    .section--soft{
      background:linear-gradient(180deg, var(--bg-soft), #eef3f9);
    }
    .section--warning{
      background:linear-gradient(180deg, rgba(242,179,94,.16), rgba(255,255,255,.88));
    }
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:18px;
      margin-bottom:28px;
    }
    .section-head .text{
      max-width:760px;
    }
    .section-head h2{
      margin:0;
      font-size:clamp(1.7rem, 2.6vw, 2.45rem);
      line-height:1.16;
      letter-spacing:-.03em;
    }
    .section-head p{
      margin:12px 0 0;
      color:var(--muted);
      max-width:62ch;
    }
    .section-head .tag{
      display:inline-flex;
      align-items:center;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      color:#08443b;
      background:rgba(44,240,208,.14);
      border:1px solid rgba(44,240,208,.18);
      font-size:.88rem;
      font-weight:700;
      white-space:nowrap;
    }

    .signal-band{
      margin-top:-18px;
      padding-top:0;
      position:relative;
      z-index:2;
    }
    .signal-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .signal-card{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:20px;
      padding:18px;
      box-shadow:var(--shadow);
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .signal-card:hover{
      transform:translateY(-3px);
      box-shadow:0 20px 40px rgba(15,20,35,.12);
      border-color:rgba(44,240,208,.22);
    }
    .signal-card .icon{
      width:42px;
      height:42px;
      border-radius:14px;
      display:grid;
      place-items:center;
      margin-bottom:14px;
      background:linear-gradient(135deg, rgba(44,240,208,.18), rgba(125,92,255,.16));
      color:#0a1620;
      border:1px solid rgba(44,240,208,.18);
      font-weight:800;
    }
    .signal-card h3{
      margin:0 0 8px;
      font-size:1.02rem;
      line-height:1.3;
    }
    .signal-card p{
      margin:0;
      color:var(--muted);
      font-size:.94rem;
    }

    .split-layout{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:20px;
      align-items:stretch;
    }
    .intro-card{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:26px;
      padding:28px;
      box-shadow:var(--shadow);
    }
    .intro-card .mini-tag{
      display:inline-flex;
      align-items:center;
      min-height:32px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(125,92,255,.10);
      border:1px solid rgba(125,92,255,.16);
      color:#5a43d8;
      font-size:.86rem;
      font-weight:700;
    }
    .intro-card h2{
      margin:14px 0 0;
      font-size:clamp(1.6rem, 2.3vw, 2.25rem);
      line-height:1.2;
      letter-spacing:-.03em;
    }
    .intro-card p{
      margin:14px 0 0;
      color:var(--muted);
    }
    .feature-list{
      list-style:none;
      padding:0;
      margin:22px 0 0;
      display:grid;
      gap:14px;
    }
    .feature-list li{
      display:flex;
      gap:12px;
      align-items:flex-start;
      color:var(--text);
    }
    .feature-list .dot{
      width:22px;
      height:22px;
      border-radius:50%;
      flex:0 0 auto;
      margin-top:3px;
      background:linear-gradient(135deg, var(--primary), #99f6eb);
      box-shadow:0 0 0 4px rgba(44,240,208,.12);
    }
    .feature-list span{
      color:var(--muted);
      display:block;
      margin-top:3px;
      font-size:.95rem;
    }

    .stacked-grid{
      display:grid;
      gap:16px;
    }
    .info-card{
      position:relative;
      overflow:hidden;
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:22px;
      padding:20px;
      box-shadow:var(--shadow);
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .info-card:hover{
      transform:translateY(-3px);
      border-color:rgba(44,240,208,.22);
      box-shadow:0 20px 42px rgba(15,20,35,.12);
    }
    .info-card::before{
      content:"";
      position:absolute;
      inset:0 auto 0 0;
      width:4px;
      background:linear-gradient(180deg, var(--primary), var(--primary-2));
    }
    .info-card .card-tag{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:0 11px;
      border-radius:999px;
      background:rgba(44,240,208,.10);
      color:#0d6b5f;
      border:1px solid rgba(44,240,208,.16);
      font-size:.83rem;
      font-weight:700;
    }
    .info-card h3{
      margin:12px 0 8px;
      font-size:1.08rem;
      line-height:1.35;
    }
    .info-card p{
      margin:0;
      color:var(--muted);
      font-size:.95rem;
    }
    .info-card.dark{
      background:linear-gradient(180deg, rgba(17,21,34,.96), rgba(24,28,42,.96));
      color:#fff;
      border-color:rgba(255,255,255,.08);
    }
    .info-card.dark h3,
    .info-card.dark p{
      color:#fff;
    }
    .info-card.dark p{color:rgba(255,255,255,.74)}
    .info-card.dark .card-tag{
      background:rgba(255,255,255,.08);
      color:#d6def4;
      border-color:rgba(255,255,255,.10);
    }
    .bottom-strip{
      margin-top:16px;
      background:linear-gradient(135deg, rgba(44,240,208,.10), rgba(125,92,255,.08));
      border:1px solid rgba(44,240,208,.16);
      border-radius:20px;
      padding:16px 18px;
      color:var(--text);
      box-shadow:var(--shadow);
    }

    .process-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
    }
    .process-card{
      position:relative;
      overflow:hidden;
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:22px;
      padding:20px;
      box-shadow:var(--shadow);
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
      min-height:198px;
    }
    .process-card:hover{
      transform:translateY(-3px);
      border-color:rgba(44,240,208,.22);
      box-shadow:0 20px 44px rgba(15,20,35,.12);
    }
    .process-card::after{
      content:"";
      position:absolute;
      left:18px;
      top:18px;
      width:46px;
      height:4px;
      border-radius:999px;
      background:linear-gradient(90deg, var(--primary), var(--primary-2));
    }
    .process-index{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      margin-top:10px;
      margin-bottom:14px;
      background:linear-gradient(135deg, var(--primary), #b0f7ed);
      color:#081018;
      font-weight:800;
      box-shadow:0 10px 20px rgba(44,240,208,.18);
    }
    .process-card h3{
      margin:0 0 8px;
      font-size:1.05rem;
    }
    .process-card p{
      margin:0;
      color:var(--muted);
      font-size:.95rem;
    }

    .preview-layout{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:18px;
      align-items:start;
    }
    .feature-article{
      overflow:hidden;
      border-radius:26px;
      background:var(--panel);
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }
    .feature-article:hover{
      transform:translateY(-3px);
      border-color:rgba(44,240,208,.22);
      box-shadow:0 22px 46px rgba(15,20,35,.13);
    }
    .feature-article img{
      width:100%;
      aspect-ratio:16/9;
      object-fit:cover;
      transition:transform .3s ease;
    }
    .feature-article:hover img{
      transform:scale(1.03);
    }
    .feature-body{
      padding:22px;
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      margin-bottom:12px;
    }
    .meta-row .meta-tag{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:0 11px;
      border-radius:999px;
      background:rgba(44,240,208,.10);
      color:#0d6b5f;
      border:1px solid rgba(44,240,208,.16);
      font-size:.82rem;
      font-weight:700;
    }
    .meta-row time{
      color:var(--muted);
      font-size:.9rem;
    }
    .feature-body h3{
      margin:0;
      font-size:1.34rem;
      line-height:1.35;
      letter-spacing:-.02em;
    }
    .feature-body p{
      margin:12px 0 0;
      color:var(--muted);
    }

    .preview-stack{
      display:grid;
      gap:16px;
    }
    .mini-card{
      display:grid;
      grid-template-columns:112px 1fr;
      gap:14px;
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:20px;
      padding:14px;
      box-shadow:var(--shadow);
      transition:transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    }
    .mini-card:hover{
      transform:translateY(-3px);
      border-color:rgba(44,240,208,.22);
      box-shadow:0 20px 40px rgba(15,20,35,.12);
    }
    .mini-card img{
      width:112px;
      height:90px;
      object-fit:cover;
      border-radius:14px;
      transition:transform .3s ease;
    }
    .mini-card:hover img{transform:scale(1.04)}
    .mini-card h3{
      margin:0 0 6px;
      font-size:1.02rem;
      line-height:1.35;
    }
    .mini-card p{
      margin:0 0 10px;
      color:var(--muted);
      font-size:.92rem;
      line-height:1.65;
    }
    .mini-card .link{
      display:inline-flex;
      align-items:center;
      gap:6px;
      color:#0d6b5f;
      font-weight:700;
      font-size:.9rem;
    }
    .mini-card .link::after{
      content:"→";
      transition:transform var(--transition);
    }
    .mini-card:hover .link::after{
      transform:translateX(2px);
    }

    .notice-box{
      display:grid;
      grid-template-columns:1fr .74fr;
      gap:20px;
      align-items:center;
      background:linear-gradient(180deg, rgba(255,255,255,.95), rgba(255,250,241,.95));
      border:1px solid rgba(242,179,94,.32);
      border-radius:26px;
      padding:24px;
      box-shadow:var(--shadow);
    }
    .notice-box .note-head{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(242,179,94,.16);
      color:#8a5310;
      border:1px solid rgba(242,179,94,.18);
      font-size:.88rem;
      font-weight:700;
    }
    .notice-box h2{
      margin:14px 0 10px;
      font-size:clamp(1.55rem, 2.2vw, 2.1rem);
      line-height:1.22;
    }
    .notice-box p{
      margin:0;
      color:var(--muted);
    }
    .notice-list{
      list-style:none;
      padding:0;
      margin:18px 0 0;
      display:grid;
      gap:12px;
    }
    .notice-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--text);
    }
    .notice-list li::before{
      content:"";
      width:10px;
      height:10px;
      border-radius:50%;
      background:var(--warning);
      box-shadow:0 0 0 4px rgba(242,179,94,.14);
      margin-top:7px;
      flex:0 0 auto;
    }
    .notice-figure{
      overflow:hidden;
      border-radius:22px;
      border:1px solid rgba(242,179,94,.26);
      background:#fff;
    }
    .notice-figure img{
      width:100%;
      aspect-ratio: 4 / 3;
      object-fit:cover;
    }

    .faq-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:16px;
    }
    .faq-item{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:18px;
      box-shadow:var(--shadow);
      overflow:hidden;
      transition:border-color var(--transition), box-shadow var(--transition), transform var(--transition);
    }
    .faq-item:hover{
      transform:translateY(-2px);
      border-color:rgba(44,240,208,.22);
      box-shadow:0 18px 36px rgba(15,20,35,.12);
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:18px 20px;
      font-weight:700;
      color:var(--text);
      outline:none;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary::after{
      content:"+";
      width:28px;
      height:28px;
      flex:0 0 auto;
      display:grid;
      place-items:center;
      border-radius:50%;
      color:#0d6b5f;
      background:rgba(44,240,208,.12);
      border:1px solid rgba(44,240,208,.16);
      transition:transform var(--transition), background var(--transition);
    }
    .faq-item[open] summary{
      border-bottom:1px solid var(--line);
    }
    .faq-item[open] summary::after{
      content:"−";
      background:rgba(125,92,255,.10);
      color:#5a43d8;
    }
    .faq-answer{
      padding:0 20px 18px;
      color:var(--muted);
    }
    .faq-note{
      margin-top:18px;
      padding:16px 18px;
      border-radius:18px;
      background:linear-gradient(135deg, rgba(44,240,208,.10), rgba(125,92,255,.08));
      border:1px solid rgba(44,240,208,.16);
      color:var(--text);
    }

    .support-layout{
      display:grid;
      grid-template-columns:.84fr 1.16fr;
      gap:18px;
      align-items:start;
    }
    .support-card{
      position:relative;
      overflow:hidden;
      border-radius:26px;
      padding:24px;
      color:#fff;
      background:
        linear-gradient(180deg, rgba(10,13,20,.96), rgba(18,22,34,.96)),
        url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      border:1px solid rgba(255,255,255,.08);
      box-shadow:var(--shadow-strong);
    }
    .support-card::before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg, rgba(44,240,208,.10), transparent 40%);
      pointer-events:none;
    }
    .support-card > *{position:relative;z-index:1}
    .support-card .badge{
      display:inline-flex;
      align-items:center;
      min-height:32px;
      padding:0 12px;
      border-radius:999px;
      background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.10);
      color:#eff4ff;
      font-size:.85rem;
      font-weight:700;
    }
    .support-card h2{
      margin:14px 0 10px;
      font-size:clamp(1.6rem, 2.25vw, 2.18rem);
      line-height:1.2;
    }
    .support-card p{
      margin:0;
      color:rgba(255,255,255,.74);
    }
    .support-card .mini-cover{
      margin-top:18px;
      overflow:hidden;
      border-radius:20px;
      border:1px solid rgba(255,255,255,.12);
    }
    .support-card .mini-cover img{
      width:100%;
      aspect-ratio:16/10;
      object-fit:cover;
    }

    .form-card{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:26px;
      padding:24px;
      box-shadow:var(--shadow);
    }
    .form-card h3{
      margin:0 0 8px;
      font-size:1.28rem;
      line-height:1.3;
    }
    .form-card p{
      margin:0 0 18px;
      color:var(--muted);
    }
    .form-grid{
      display:grid;
      grid-template-columns:repeat(2,1fr);
      gap:14px;
    }
    .field{
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .field.full{grid-column:1 / -1}
    .field label{
      font-size:.93rem;
      color:var(--text-2);
      font-weight:700;
    }
    .field input,
    .field select,
    .field textarea{
      width:100%;
      border-radius:14px;
      border:1px solid var(--line-2);
      background:#fff;
      color:var(--text);
      padding:14px 15px;
      outline:none;
      transition:border-color var(--transition), box-shadow var(--transition), background var(--transition), transform var(--transition);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.6);
    }
    .field textarea{
      min-height:140px;
      resize:vertical;
    }
    .field input::placeholder,
    .field textarea::placeholder{
      color:#8a95ab;
    }
    .field input:focus,
    .field select:focus,
    .field textarea:focus{
      border-color:rgba(44,240,208,.75);
      box-shadow:0 0 0 4px rgba(44,240,208,.15);
      background:#fff;
    }
    .form-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      margin-top:18px;
    }
    .form-note{
      margin-top:14px;
      font-size:.92rem;
      color:var(--muted);
    }
    .form-note strong{
      color:#1b2740;
    }

    footer{
      background:linear-gradient(180deg, #0b0d14, #07080d);
      color:#d5dbea;
      border-top:1px solid rgba(255,255,255,.08);
      padding:42px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.05fr .9fr .85fr;
      gap:18px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      flex-direction:column;
      gap:14px;
    }
    .footer-brand .logo{
      display:flex;
      align-items:center;
      gap:12px;
      color:#fff;
    }
    .footer-brand .logo .brand-badge{
      width:42px;
      height:42px;
    }
    .footer-brand p{
      margin:0;
      color:rgba(255,255,255,.72);
      max-width:34ch;
    }
    .footer-col h3{
      margin:2px 0 12px;
      font-size:1rem;
      color:#fff;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(255,255,255,.76);
      transition:color var(--transition), transform var(--transition);
      width:fit-content;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:var(--primary);
      transform:translateX(2px);
      outline:none;
    }
    .footer-note{
      color:rgba(255,255,255,.68);
      font-size:.93rem;
    }
    .copyright{
      margin-top:24px;
      padding-top:18px;
      border-top:1px solid rgba(255,255,255,.08);
      color:rgba(255,255,255,.62);
      font-size:.9rem;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:space-between;
      align-items:center;
    }

    .section-title-only{
      margin-bottom:24px;
    }
    .section-title-only h2{
      margin:0;
      font-size:clamp(1.65rem, 2.6vw, 2.35rem);
      line-height:1.18;
      letter-spacing:-.03em;
    }
    .section-title-only p{
      margin:10px 0 0;
      color:var(--muted);
      max-width:64ch;
    }

    :focus-visible{
      outline:3px solid rgba(44,240,208,.34);
      outline-offset:2px;
    }

    @media (max-width: 1080px){
      .hero-grid,
      .split-layout,
      .preview-layout,
      .support-layout,
      .notice-box{
        grid-template-columns:1fr;
      }
      .signal-grid{
        grid-template-columns:repeat(2,1fr);
      }
      .process-grid{
        grid-template-columns:repeat(2,1fr);
      }
      .footer-grid{
        grid-template-columns:1fr 1fr;
      }
      .footer-brand{
        grid-column:1 / -1;
      }
    }

    @media (max-width: 760px){
      .topbar-inner{
        gap:8px;
        font-size:.8rem;
      }
      .site-nav{
        display:none;
      }
      .menu-toggle{
        display:inline-flex;
      }
      .site-header.open .site-nav{
        display:flex;
        position:absolute;
        top:100%;
        left:0;
        right:0;
        margin:0;
        padding:12px 16px 18px;
        flex-direction:column;
        align-items:stretch;
        background:rgba(10,12,18,.98);
        border-bottom:1px solid rgba(255,255,255,.08);
        box-shadow:0 18px 36px rgba(0,0,0,.22);
      }
      .hero{
        padding:52px 0 44px;
      }
      .hero h1{
        max-width:none;
      }
      .hero-actions .btn,
      .form-actions .btn{
        width:100%;
      }
      .panel-strip{
        grid-template-columns:1fr;
      }
      .signal-grid,
      .process-grid,
      .faq-grid,
      .form-grid,
      .footer-grid{
        grid-template-columns:1fr;
      }
      .mini-card{
        grid-template-columns:88px 1fr;
      }
      .mini-card img{
        width:88px;
        height:88px;
      }
      .section{
        padding:60px 0;
      }
      .section-head{
        align-items:flex-start;
        flex-direction:column;
      }
      .support-card,
      .notice-box,
      .intro-card,
      .form-card,
      .feature-article{
        border-radius:22px;
      }
      .copyright{
        flex-direction:column;
        align-items:flex-start;
      }
    }

    @media (max-width: 520px){
      .container{
        width:min(100% - 22px, var(--container));
      }
      .hero h1{
        font-size:clamp(2.1rem, 10vw, 3.1rem);
      }
      .lead,
      .section-head p,
      .intro-card p,
      .notice-box p,
      .support-card p{
        font-size:.97rem;
      }
      .btn{
        min-height:46px;
        padding:0 16px;
      }
      .feature-body,
      .form-card,
      .support-card,
      .intro-card,
      .notice-box{
        padding:18px;
      }
      .feature-body h3{
        font-size:1.18rem;
      }
      .faq-item summary{
        padding:16px 16px;
      }
      .faq-answer{
        padding:0 16px 16px;
      }
    }

/* roulang page: category1 */
:root{
      --bg:#0d0b18;
      --bg-2:#151225;
      --panel:#ffffff;
      --panel-soft:#f6f8fb;
      --ink:#171827;
      --muted:#667085;
      --muted-2:#98a2b3;
      --line:#e6e9f0;
      --line-dark:rgba(255,255,255,.13);
      --cyan:#22f0d0;
      --cyan-dark:#02bfa4;
      --violet:#7b4dff;
      --violet-2:#b46cff;
      --amber:#f6a623;
      --white:#fff;
      --radius:20px;
      --radius-sm:12px;
      --shadow:0 18px 55px rgba(20,25,45,.12);
      --shadow-soft:0 10px 30px rgba(20,25,45,.08);
      --container:1180px;
      --ease:.24s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.75;color:var(--ink);background:#fbfcff;min-width:320px;text-rendering:optimizeLegibility}
    a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease)}
    img{display:block;max-width:100%;height:auto}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer;border:0;background:none}
    :focus-visible{outline:3px solid rgba(34,240,208,.55);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .top-strip{background:#090714;color:#d7fef7;border-bottom:1px solid var(--line-dark);font-size:13px}
    .top-strip .container{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:8px 0}
    .status-dot{display:inline-flex;width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 5px rgba(34,240,208,.12);margin-right:8px;vertical-align:middle}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(13,11,24,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line-dark)}
    .header-inner{height:74px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:inline-flex;align-items:center;gap:12px;min-width:0}
    .brand-badge{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;color:#071411;font-weight:900;letter-spacing:-1px;background:linear-gradient(135deg,var(--cyan),#ccfff6);box-shadow:0 0 28px rgba(34,240,208,.22)}
    .brand-text{display:flex;flex-direction:column;line-height:1.2;color:#fff}
    .brand-text strong{font-size:18px;font-weight:900;white-space:nowrap}
    .brand-text small{font-size:12px;color:#b8c0d6;margin-top:3px;white-space:nowrap}
    .site-nav{display:flex;align-items:center;gap:8px}
    .nav-link{position:relative;color:#dbe1ef;font-size:15px;font-weight:700;padding:10px 16px;border-radius:999px}
    .nav-link:hover{color:var(--cyan);background:rgba(255,255,255,.06)}
    .nav-link.active{color:#071411;background:var(--cyan)}
    .menu-toggle{display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line-dark);color:#fff;background:rgba(255,255,255,.06)}
    .menu-toggle span{display:block;width:20px;height:2px;background:currentColor;margin:5px auto;border-radius:3px;transition:transform var(--ease),opacity var(--ease)}
    main{overflow:hidden}
    .page-hero{position:relative;color:#fff;background:radial-gradient(circle at 12% 20%,rgba(34,240,208,.18),transparent 32%),linear-gradient(135deg,#111025 0%,#17112b 48%,#241345 100%);padding:46px 0 62px;border-bottom:1px solid rgba(255,255,255,.08)}
    .page-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px),url('/assets/images/backpic/back-2.webp');background-size:34px 34px,34px 34px,cover;background-position:center;opacity:.22;mix-blend-mode:screen}
    .hero-content{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:34px;align-items:center}
    .breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:#bcc6dd;font-size:14px;margin-bottom:18px}
    .breadcrumb a:hover{color:var(--cyan)}
    .breadcrumb span:last-child{color:#fff}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid rgba(34,240,208,.34);border-radius:999px;background:rgba(34,240,208,.09);color:#cffff8;font-size:13px;font-weight:800;margin-bottom:16px}
    h1{font-size:clamp(32px,5vw,56px);line-height:1.12;letter-spacing:-.04em;font-weight:950;margin-bottom:18px}
    .hero-lead{font-size:17px;color:#d7deef;max-width:720px;line-height:1.9}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:999px;font-weight:900;border:1px solid transparent;transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease)}
    .btn-primary{background:linear-gradient(135deg,var(--cyan),#a8fff3);color:#081412;box-shadow:0 14px 34px rgba(34,240,208,.22)}
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 42px rgba(34,240,208,.28)}
    .btn-secondary{border-color:rgba(255,255,255,.24);color:#fff;background:rgba(255,255,255,.06)}
    .btn-secondary:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
    .hero-card{position:relative;border-radius:28px;overflow:hidden;background:#0f1222;border:1px solid rgba(255,255,255,.14);box-shadow:0 24px 70px rgba(0,0,0,.32)}
    .hero-card img{width:100%;height:300px;object-fit:cover;filter:saturate(1.02) contrast(1.05)}
    .hero-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,8,18,.82),transparent 55%)}
    .hero-card-info{position:absolute;z-index:2;left:22px;right:22px;bottom:20px;display:grid;grid-template-columns:1fr auto;gap:14px;align-items:end}
    .hero-card-info strong{display:block;font-size:20px;margin-bottom:4px}
    .hero-card-info p{color:#cbd3e8;font-size:14px;line-height:1.6}
    .seal{width:76px;height:76px;border-radius:22px;display:grid;place-items:center;text-align:center;background:rgba(34,240,208,.92);color:#071411;font-size:14px;font-weight:950;line-height:1.25;box-shadow:0 0 30px rgba(34,240,208,.26)}
    .section{padding:74px 0}
    .section.alt{background:var(--panel-soft)}
    .section.dark{background:linear-gradient(135deg,#0d0b18,#17122b);color:#fff}
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:30px}
    .section-kicker{display:inline-flex;color:var(--cyan-dark);font-weight:950;font-size:13px;letter-spacing:.05em;margin-bottom:8px}
    h2{font-size:clamp(26px,3vw,38px);line-height:1.2;letter-spacing:-.03em;font-weight:950}
    .section-head p{max-width:560px;color:var(--muted)}
    .dark .section-head p{color:#c4ccde}
    .tag-row{display:flex;gap:10px;flex-wrap:wrap;margin:26px 0 6px}
    .tag{display:inline-flex;align-items:center;min-height:34px;padding:6px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#445066;font-size:14px;font-weight:800}
    .tag.active{background:linear-gradient(135deg,var(--cyan),#e1fff9);border-color:transparent;color:#071411}
    .tag.purple{background:#f2edff;color:#623ce7;border-color:#ded4ff}
    .guide-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:28px;align-items:start}
    .feature-card{border-radius:28px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden;margin-bottom:20px;transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .feature-card:hover,.list-card:hover,.side-card:hover{transform:translateY(-4px);border-color:rgba(34,240,208,.7);box-shadow:0 22px 60px rgba(20,25,45,.14)}
    .feature-image{position:relative;overflow:hidden;aspect-ratio:16/7;background:#111}
    .feature-image img,.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
    .feature-card:hover img,.list-card:hover img{transform:scale(1.045)}
    .feature-body{padding:26px}
    .meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center;color:var(--muted);font-size:13px;margin-bottom:10px}
    .pill{display:inline-flex;padding:4px 10px;border-radius:999px;background:#e9fffb;color:#007f70;font-weight:900;font-size:12px}
    h3{font-size:21px;line-height:1.35;font-weight:950;margin-bottom:8px}
    .feature-body p,.list-body p{color:var(--muted)}
    .check-list{display:grid;gap:12px;margin-top:18px;list-style:none}
    .check-list li{display:flex;gap:10px;color:#475467}
    .check-list li:before{content:"✓";flex:0 0 22px;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:#e9fffb;color:#008c7a;font-size:13px;font-weight:950;margin-top:3px}
    .list-stack{display:grid;gap:16px}
    .list-card{display:grid;grid-template-columns:180px 1fr;gap:18px;border:1px solid var(--line);background:#fff;border-radius:22px;overflow:hidden;box-shadow:var(--shadow-soft);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .thumb{min-height:150px;overflow:hidden;background:#10101a}
    .list-body{padding:20px 20px 20px 0}
    .list-body h3 a:hover{color:var(--cyan-dark)}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;counter-reset:step}
    .step{position:relative;padding:24px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-soft)}
    .step:before{counter-increment:step;content:"0" counter(step);display:inline-flex;width:42px;height:42px;border-radius:14px;align-items:center;justify-content:center;margin-bottom:16px;background:#101226;color:var(--cyan);font-weight:950}
    .step:not(:last-child):after{content:"";position:absolute;right:-14px;top:44px;width:14px;height:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
    .step h3{font-size:18px}
    .step p{color:var(--muted);font-size:15px}
    .side{position:sticky;top:98px;display:grid;gap:16px}
    .side-card{border-radius:22px;background:#fff;border:1px solid var(--line);padding:22px;box-shadow:var(--shadow-soft);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
    .side-card.dark-side{background:linear-gradient(145deg,#111025,#22133e);color:#fff;border-color:rgba(255,255,255,.12)}
    .side-card h3{font-size:18px;margin-bottom:10px}
    .side-card p{color:var(--muted);font-size:15px}
    .dark-side p{color:#c6cee2}
    .topic-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
    .topic-tags a{padding:7px 10px;border-radius:999px;background:#f2f5fb;color:#4c566d;font-weight:800;font-size:13px}
    .topic-tags a:hover{background:#e8fffb;color:#007f70}
    .notice-box{display:grid;grid-template-columns:auto 1fr;gap:18px;padding:24px;border-radius:24px;background:#fff7e8;border:1px solid #ffd999;color:#5c3b05}
    .notice-icon{width:48px;height:48px;border-radius:16px;background:#fff;display:grid;place-items:center;color:#b66b00;font-size:24px;font-weight:950}
    .notice-box ul{margin-top:8px;padding-left:18px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .faq-item{border:1px solid var(--line);background:#fff;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-soft)}
    .faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:18px 20px;color:var(--ink);font-weight:950;text-align:left}
    .faq-q .plus{width:26px;height:26px;border-radius:50%;background:#eef3f8;display:grid;place-items:center;flex:0 0 auto;transition:transform var(--ease),background var(--ease)}
    .faq-a{display:none;padding:0 20px 18px;color:var(--muted)}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .plus{transform:rotate(45deg);background:#dffff9;color:#007f70}
    .cta-card{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;padding:34px;border-radius:30px;background:linear-gradient(135deg,rgba(34,240,208,.14),rgba(123,77,255,.2));border:1px solid rgba(255,255,255,.14)}
    .cta-card p{color:#d3dbec;max-width:720px;margin-top:8px}
    .support-form{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
    .support-form label{display:grid;gap:6px;font-size:13px;color:#dbe5f5;font-weight:800}
    .support-form input,.support-form textarea,.support-form select{width:100%;border-radius:14px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.07);color:#fff;padding:12px 14px;outline:none;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease)}
    .support-form input:focus,.support-form textarea:focus,.support-form select:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(34,240,208,.12);background:rgba(255,255,255,.1)}
    .support-form textarea{grid-column:1/-1;min-height:92px;resize:vertical}
    .support-form .form-note{grid-column:1/-1;color:#aeb8ce;font-size:13px}
    .pagination{display:flex;gap:8px;align-items:center;justify-content:center;margin-top:28px}
    .page-btn{min-width:42px;height:42px;border-radius:14px;border:1px solid var(--line);background:#fff;color:#475467;font-weight:900;display:grid;place-items:center}
    .page-btn:hover,.page-btn.active{background:#101226;color:var(--cyan);border-color:#101226}
    footer{background:#090714;color:#fff;padding:54px 0 24px;border-top:1px solid rgba(255,255,255,.12)}
    .footer-grid{display:grid;grid-template-columns:1.4fr .8fr .9fr;gap:36px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12)}
    .footer-brand p,.footer-note{color:#aeb8ce;margin-top:14px;font-size:14px;line-height:1.8}
    .footer-col h3{font-size:16px;margin-bottom:14px;color:#fff}
    .footer-links{display:grid;gap:9px}
    .footer-links a{color:#b8c0d6;font-size:14px}
    .footer-links a:hover{color:var(--cyan)}
    .copyright{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:#8892aa;font-size:13px;padding-top:20px}
    @media (max-width:1024px){
      .hero-content,.guide-layout{grid-template-columns:1fr}.side{position:static}.timeline{grid-template-columns:repeat(2,1fr)}.step:after{display:none}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
    }
    @media (max-width:768px){
      .top-strip .container{align-items:flex-start;flex-direction:column;gap:4px}.header-inner{height:66px}.menu-toggle{display:block}.site-nav{position:absolute;left:20px;right:20px;top:74px;display:none;flex-direction:column;align-items:stretch;padding:14px;background:#111025;border:1px solid var(--line-dark);border-radius:20px;box-shadow:0 20px 50px rgba(0,0,0,.35)}.site-nav.open{display:flex}.nav-link{text-align:center}.page-hero{padding:34px 0 48px}.hero-card img{height:240px}.section{padding:56px 0}.section-head{display:block}.section-head p{margin-top:10px}.list-card{grid-template-columns:1fr}.thumb{aspect-ratio:16/9}.list-body{padding:20px}.faq-grid,.support-form{grid-template-columns:1fr}.cta-card{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.container{width:min(100% - 28px,var(--container))}
    }
    @media (max-width:520px){
      .brand-text strong{font-size:16px}.brand-text small{font-size:11px}.brand-badge{width:40px;height:40px}.hero-actions .btn{width:100%}.hero-card-info{grid-template-columns:1fr}.seal{width:66px;height:66px}.tag-row{gap:8px}.tag{font-size:13px}.timeline{grid-template-columns:1fr}.notice-box{grid-template-columns:1fr}.pagination{justify-content:flex-start;overflow-x:auto;padding-bottom:4px}.page-btn{min-width:44px}.copyright{display:grid}
    }