/* roulang page: index */
:root{
      --bg:#050816;
      --bg-deep:#0B1024;
      --bg-soft:#10162f;
      --primary:#3E7BFF;
      --secondary:#B65CFF;
      --accent:#FF5C9A;
      --warm:#FFD166;
      --text:#E8ECF8;
      --muted:#98A2B8;
      --weak:#6F7890;
      --line:rgba(255,255,255,.08);
      --border:rgba(255,255,255,.12);
      --glass:rgba(255,255,255,.065);
      --glass-strong:rgba(255,255,255,.095);
      --shadow:0 24px 70px rgba(0,0,0,.38);
      --glow:0 0 34px rgba(62,123,255,.34);
      --radius-lg:28px;
      --radius-md:20px;
      --radius-sm:14px;
      --nav-height:76px;
      --font:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      font-family:var(--font);
      color:var(--text);
      line-height:1.75;
      background:
        radial-gradient(circle at 9% 8%, rgba(62,123,255,.25), transparent 32%),
        radial-gradient(circle at 88% 18%, rgba(182,92,255,.18), transparent 32%),
        radial-gradient(circle at 78% 86%, rgba(255,92,154,.16), transparent 34%),
        linear-gradient(180deg, #050816 0%, #070A18 45%, #050816 100%);
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      z-index:-1;
      opacity:.42;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
      background-size:72px 72px;
      mask-image:linear-gradient(to bottom, rgba(0,0,0,.55), transparent 76%);
    }
    a{color:inherit;text-decoration:none;transition:.25s ease}
    a:hover{color:var(--text)}
    img,svg{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    :focus-visible{outline:3px solid rgba(255,209,102,.78);outline-offset:3px}
    .grid-container{max-width:1240px}
    .section{padding:102px 0;position:relative}
    .section-tight{padding:78px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:9px;
      padding:8px 13px;
      border:1px solid var(--border);
      border-radius:999px;
      color:#cfd8ff;
      font-size:13px;
      line-height:1.2;
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(16px);
      box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
    }
    .eyebrow::before,.status-dot{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 0 14px rgba(255,92,154,.62);
      flex:0 0 auto;
    }
    h1,h2,h3,h4,p{margin-top:0}
    h1{
      margin-bottom:22px;
      font-size:clamp(36px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.045em;
      font-weight:850;
    }
    h2{
      margin-bottom:18px;
      font-size:clamp(29px,3.4vw,42px);
      line-height:1.18;
      letter-spacing:-.035em;
      font-weight:820;
    }
    h3{
      font-size:23px;
      line-height:1.34;
      font-weight:760;
      margin-bottom:12px;
    }
    p{color:var(--muted);font-size:16.5px}
    .lead{font-size:18px;color:#B9C3D9;max-width:720px}
    .gradient-text{
      background:linear-gradient(135deg,#fff 0%,#cdddff 36%,#e7c2ff 70%,#ffd2e2 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:1000;
      height:var(--nav-height);
      border-bottom:1px solid rgba(255,255,255,.09);
      background:rgba(5,8,22,.74);
      backdrop-filter:blur(22px);
      box-shadow:0 10px 40px rgba(0,0,0,.22);
    }
    .nav-shell{
      height:var(--nav-height);
      display:grid;
      grid-template-columns:1fr auto 1fr;
      align-items:center;
      gap:24px;
    }
    .nav-left,.nav-right{
      display:flex;
      align-items:center;
      gap:18px;
    }
    .nav-left{justify-content:flex-end}
    .nav-right{justify-content:flex-start}
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:270px;
      justify-content:center;
      padding:10px 16px;
      border:1px solid rgba(255,255,255,.14);
      border-radius:999px;
      background:linear-gradient(180deg,rgba(255,255,255,.09),rgba(255,255,255,.045));
      box-shadow:0 0 28px rgba(182,92,255,.16);
      font-weight:820;
      letter-spacing:-.02em;
      white-space:nowrap;
    }
    .brand-mark{
      position:relative;
      width:34px;
      height:34px;
      border-radius:50%;
      background:linear-gradient(135deg,var(--primary),var(--secondary) 55%,var(--accent));
      box-shadow:0 0 24px rgba(62,123,255,.45);
      flex:0 0 auto;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      left:13px;
      top:10px;
      width:0;
      height:0;
      border-top:7px solid transparent;
      border-bottom:7px solid transparent;
      border-left:10px solid #fff;
      filter:drop-shadow(0 1px 2px rgba(0,0,0,.25));
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:44px;
      padding:8px 12px;
      color:#c5cce0;
      font-size:15px;
      font-weight:650;
      border-radius:999px;
    }
    .nav-link::after{
      content:"";
      position:absolute;
      left:14px;
      right:14px;
      bottom:4px;
      height:2px;
      border-radius:99px;
      transform:scaleX(0);
      transform-origin:center;
      background:linear-gradient(90deg,var(--primary),var(--accent));
      transition:.25s ease;
    }
    .nav-link:hover,.nav-link.active{color:#fff;background:rgba(255,255,255,.055)}
    .nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
    .mobile-nav-toggle{
      display:none;
      width:46px;
      height:46px;
      border:1px solid var(--border);
      border-radius:15px;
      background:rgba(255,255,255,.06);
      color:var(--text);
      align-items:center;
      justify-content:center;
    }
    .hamburger,.hamburger::before,.hamburger::after{
      display:block;
      width:20px;
      height:2px;
      border-radius:10px;
      background:#fff;
      transition:.25s ease;
    }
    .hamburger{position:relative}
    .hamburger::before,.hamburger::after{content:"";position:absolute;left:0}
    .hamburger::before{top:-7px}
    .hamburger::after{top:7px}
    .mobile-menu{
      display:none;
      border-top:1px solid var(--line);
      background:rgba(8,12,30,.96);
      backdrop-filter:blur(18px);
      padding:12px 0 18px;
    }
    .mobile-menu a{
      display:flex;
      align-items:center;
      min-height:48px;
      padding:10px 18px;
      border-radius:14px;
      color:#d7def2;
      font-weight:700;
    }
    .mobile-menu a.active,.mobile-menu a:hover{background:rgba(255,255,255,.07);color:#fff}

    .hero{
      min-height:700px;
      padding:88px 0 68px;
      display:flex;
      align-items:center;
      position:relative;
      overflow:hidden;
    }
    .hero::after{
      content:"";
      position:absolute;
      inset:auto 9% 56px auto;
      width:340px;
      height:340px;
      background:radial-gradient(circle,rgba(255,92,154,.16),transparent 66%);
      filter:blur(12px);
      pointer-events:none;
    }
    .hero-copy{position:relative;z-index:2}
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:14px;
      margin:30px 0 26px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:14px 24px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:780;
      line-height:1.2;
      transition:.25s ease;
      user-select:none;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--primary),var(--secondary) 58%,var(--accent));
      box-shadow:var(--glow), inset 0 1px 0 rgba(255,255,255,.18);
    }
    .btn-primary:hover{
      color:#fff;
      transform:translateY(-2px);
      filter:brightness(1.08);
      box-shadow:0 0 42px rgba(182,92,255,.42);
    }
    .btn-secondary{
      color:#eaf0ff;
      border-color:var(--border);
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(16px);
    }
    .btn-secondary:hover{
      color:#fff;
      border-color:rgba(62,123,255,.55);
      background:rgba(255,255,255,.09);
      transform:translateY(-2px);
    }
    .trust-strip{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:12px;
      max-width:720px;
      margin-top:24px;
    }
    .trust-item{
      padding:14px 13px;
      border:1px solid var(--border);
      border-radius:18px;
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(15px);
    }
    .trust-item strong{display:block;color:#fff;font-size:15px;margin-bottom:2px}
    .trust-item span{display:block;color:var(--weak);font-size:13px;line-height:1.45}

    .product-mock{
      position:relative;
      padding:20px;
      border:1px solid rgba(255,255,255,.13);
      border-radius:34px;
      background:
        linear-gradient(145deg,rgba(255,255,255,.11),rgba(255,255,255,.045)),
        radial-gradient(circle at 20% 0,rgba(62,123,255,.24),transparent 35%),
        radial-gradient(circle at 90% 80%,rgba(255,92,154,.16),transparent 42%);
      box-shadow:var(--shadow),0 0 72px rgba(62,123,255,.16);
      backdrop-filter:blur(20px);
      overflow:hidden;
    }
    .mock-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-bottom:15px;
    }
    .mock-dots{display:flex;gap:7px}
    .mock-dots span{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.28)}
    .mock-search{
      flex:1;
      height:38px;
      border-radius:999px;
      background:rgba(5,8,22,.55);
      border:1px solid var(--line);
      display:flex;
      align-items:center;
      padding:0 14px;
      color:var(--weak);
      font-size:13px;
    }
    .player-window{
      position:relative;
      height:262px;
      border-radius:24px;
      border:1px solid rgba(255,255,255,.11);
      background:
        linear-gradient(135deg,rgba(62,123,255,.24),rgba(182,92,255,.16) 48%,rgba(255,92,154,.12)),
        linear-gradient(180deg,rgba(7,10,24,.2),rgba(7,10,24,.78));
      overflow:hidden;
    }
    .player-window::before{
      content:"";
      position:absolute;
      inset:22px;
      border:1px solid rgba(255,255,255,.08);
      border-radius:19px;
      background:linear-gradient(135deg,rgba(255,255,255,.05),transparent);
    }
    .play-orb{
      position:absolute;
      left:50%;
      top:48%;
      transform:translate(-50%,-50%);
      width:78px;
      height:78px;
      border-radius:50%;
      background:rgba(255,255,255,.16);
      border:1px solid rgba(255,255,255,.24);
      box-shadow:0 0 34px rgba(255,92,154,.28);
      backdrop-filter:blur(14px);
    }
    .play-orb::after{
      content:"";
      position:absolute;
      left:32px;
      top:24px;
      border-left:20px solid #fff;
      border-top:14px solid transparent;
      border-bottom:14px solid transparent;
    }
    .progress-line{
      position:absolute;
      left:24px;
      right:24px;
      bottom:24px;
      height:8px;
      border-radius:999px;
      background:rgba(255,255,255,.13);
      overflow:hidden;
    }
    .progress-line span{
      display:block;
      width:58%;
      height:100%;
      border-radius:999px;
      background:linear-gradient(90deg,var(--primary),var(--accent));
      box-shadow:0 0 20px rgba(62,123,255,.55);
    }
    .mock-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:14px;
      margin-top:14px;
    }
    .mock-panel{
      padding:16px;
      border-radius:21px;
      border:1px solid var(--border);
      background:rgba(5,8,22,.45);
    }
    .mini-title{font-weight:800;color:#fff;margin-bottom:10px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
    .badge{
      display:inline-flex;
      align-items:center;
      gap:7px;
      padding:7px 10px;
      border:1px solid rgba(255,255,255,.13);
      border-radius:999px;
      color:#dce5ff;
      background:rgba(255,255,255,.055);
      font-size:12.5px;
      line-height:1.2;
      white-space:nowrap;
    }
    .badge.hot{border-color:rgba(255,92,154,.32);background:rgba(255,92,154,.09)}
    .badge.blue{border-color:rgba(62,123,255,.34);background:rgba(62,123,255,.1)}
    .badge.gold{border-color:rgba(255,209,102,.35);background:rgba(255,209,102,.08);color:#ffe2a0}

    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:22px;
      margin-bottom:38px;
    }
    .section-head p{max-width:650px;margin-bottom:0}
    .glass-card{
      border:1px solid var(--border);
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.045));
      backdrop-filter:blur(18px);
      box-shadow:0 18px 60px rgba(0,0,0,.27);
      transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease,background .25s ease;
    }
    .glass-card:hover{
      transform:translateY(-4px);
      border-color:rgba(182,92,255,.34);
      box-shadow:0 24px 76px rgba(0,0,0,.34),0 0 32px rgba(62,123,255,.14);
      background:linear-gradient(180deg,rgba(255,255,255,.09),rgba(255,255,255,.055));
    }
    .value-large{
      min-height:100%;
      padding:34px;
      position:relative;
      overflow:hidden;
    }
    .value-large::after{
      content:"";
      position:absolute;
      right:-80px;
      bottom:-80px;
      width:240px;
      height:240px;
      border-radius:50%;
      background:radial-gradient(circle,rgba(62,123,255,.25),transparent 68%);
    }
    .value-large .big-icon{
      width:70px;
      height:70px;
      border-radius:24px;
      background:linear-gradient(135deg,var(--primary),var(--secondary));
      display:flex;
      align-items:center;
      justify-content:center;
      font-size:30px;
      margin-bottom:24px;
      box-shadow:0 0 30px rgba(62,123,255,.26);
    }
    .small-value{
      padding:24px;
      min-height:178px;
    }
    .small-value .icon-chip,.feature-icon,.scenario-icon{
      width:42px;
      height:42px;
      border-radius:16px;
      display:flex;
      align-items:center;
      justify-content:center;
      margin-bottom:16px;
      background:rgba(62,123,255,.13);
      border:1px solid rgba(62,123,255,.25);
      color:#dbe6ff;
      font-size:20px;
    }
    .category-entry{
      padding:26px;
      display:grid;
      grid-template-columns:1fr auto;
      gap:18px;
      align-items:center;
      border-radius:28px;
      border:1px solid rgba(255,255,255,.13);
      background:
        radial-gradient(circle at 8% 20%,rgba(62,123,255,.16),transparent 38%),
        radial-gradient(circle at 100% 80%,rgba(255,92,154,.13),transparent 40%),
        rgba(255,255,255,.06);
    }
    .category-entry h3{margin-bottom:6px}
    .category-entry p{margin-bottom:0}
    .feature-row{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:28px;
      align-items:center;
      margin-bottom:28px;
    }
    .feature-row:nth-child(even) .feature-copy{order:2}
    .feature-copy{padding:34px}
    .feature-visual{
      min-height:275px;
      padding:24px;
      overflow:hidden;
      position:relative;
      display:flex;
      align-items:center;
      justify-content:center;
    }
    .ui-stack{
      width:100%;
      max-width:420px;
      display:grid;
      gap:12px;
    }
    .ui-line{
      height:52px;
      border-radius:17px;
      background:rgba(5,8,22,.42);
      border:1px solid var(--line);
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:0 16px;
    }
    .ui-bar{height:9px;border-radius:999px;background:rgba(255,255,255,.18);width:48%}
    .ui-bar:nth-child(2){width:28%;background:linear-gradient(90deg,var(--primary),var(--accent))}
    .value-note{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:14px 16px;
      border-radius:18px;
      background:rgba(62,123,255,.08);
      border:1px solid rgba(62,123,255,.18);
      color:#cfd9ff;
      font-size:14px;
      margin-top:18px;
    }
    .scenario-track{
      display:flex;
      gap:16px;
      overflow-x:auto;
      padding:8px 2px 18px;
      scrollbar-color:rgba(255,255,255,.25) transparent;
    }
    .scenario-card{
      flex:0 0 260px;
      padding:23px;
      border-radius:24px;
      border:1px solid var(--border);
      background:rgba(255,255,255,.058);
    }
    .feedback-grid{
      display:grid;
      grid-template-columns:1.1fr .9fr 1fr;
      gap:20px;
    }
    .feedback-card{padding:26px}
    .feedback-meta{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:16px;
    }
    .avatar{
      width:46px;
      height:46px;
      border-radius:50%;
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:850;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      box-shadow:0 0 22px rgba(255,92,154,.22);
    }
    .quote{
      color:#dce5fb;
      font-size:17px;
      margin-bottom:0;
    }
    .pricing-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:22px;
      align-items:stretch;
    }
    .plan{
      padding:28px;
      position:relative;
      overflow:hidden;
    }
    .plan.featured{
      border-color:rgba(255,92,154,.42);
      box-shadow:0 0 44px rgba(182,92,255,.18),0 18px 60px rgba(0,0,0,.32);
      transform:translateY(-8px);
    }
    .plan.featured:hover{transform:translateY(-12px)}
    .plan-name{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:12px}
    .plan-price{
      font-size:26px;
      font-weight:850;
      color:#fff;
      margin:12px 0 14px;
    }
    .plan ul{
      margin:18px 0 24px;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .plan li{
      color:#c4cce0;
      display:flex;
      gap:9px;
      align-items:flex-start;
      font-size:15px;
    }
    .plan li::before{
      content:"";
      width:8px;
      height:8px;
      margin-top:9px;
      border-radius:50%;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      flex:0 0 auto;
    }

    .accordion{
      background:transparent;
      border:0;
    }
    .accordion-item{
      margin-bottom:14px;
      border:1px solid var(--border);
      border-radius:20px;
      overflow:hidden;
      background:rgba(255,255,255,.055);
      backdrop-filter:blur(18px);
      transition:.25s ease;
    }
    .accordion-item.is-active{
      border-color:rgba(62,123,255,.38);
      box-shadow:0 0 28px rgba(62,123,255,.12);
    }
    .accordion-title{
      border:0 !important;
      background:transparent !important;
      color:#fff !important;
      font-size:17px;
      font-weight:780;
      padding:21px 58px 21px 22px;
      line-height:1.45;
    }
    .accordion-title:hover,.accordion-title:focus{background:rgba(255,255,255,.04) !important}
    .accordion-title::before{
      right:22px;
      color:#d7e0ff;
      font-size:24px;
      margin-top:-13px;
    }
    .accordion-content{
      border:0 !important;
      background:transparent !important;
      color:var(--muted);
      padding:0 22px 22px;
      line-height:1.75;
    }
    .cta-panel{
      position:relative;
      overflow:hidden;
      padding:42px;
      border-radius:34px;
      border:1px solid rgba(255,255,255,.14);
      background:
        radial-gradient(circle at 12% 20%,rgba(62,123,255,.2),transparent 40%),
        radial-gradient(circle at 84% 78%,rgba(255,92,154,.18),transparent 42%),
        linear-gradient(135deg,rgba(255,255,255,.095),rgba(255,255,255,.045));
      box-shadow:var(--shadow);
      backdrop-filter:blur(20px);
    }
    .cta-panel .grid-x{position:relative;z-index:1}
    .site-footer{
      padding:66px 0 28px;
      background:linear-gradient(180deg,rgba(11,16,36,.45),rgba(5,8,22,.98));
      border-top:1px solid var(--line);
      position:relative;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-size:19px;
      font-weight:850;
      margin-bottom:16px;
    }
    .footer-title{
      color:#fff;
      font-weight:800;
      margin-bottom:14px;
    }
    .footer-links{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:15px;
    }
    .footer-links a:hover{color:#fff;padding-left:3px}
    .footer-note{
      padding:16px;
      border:1px solid var(--line);
      border-radius:18px;
      background:rgba(255,255,255,.04);
      color:var(--muted);
      font-size:14px;
    }
    .copyright{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid var(--line);
      color:var(--weak);
      font-size:14px;
      display:flex;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }
    .fade-up{
      animation:fadeUp .7s ease both;
    }
    @keyframes fadeUp{
      from{opacity:0;transform:translateY(18px)}
      to{opacity:1;transform:translateY(0)}
    }

    @media (max-width:1023px){
      :root{--nav-height:70px}
      .section{padding:82px 0}
      .nav-shell{grid-template-columns:auto 1fr auto}
      .nav-left,.nav-right{display:none}
      .brand{
        justify-content:flex-start;
        min-width:0;
        max-width:calc(100vw - 100px);
        overflow:hidden;
      }
      .brand span:last-child{
        overflow:hidden;
        text-overflow:ellipsis;
      }
      .mobile-nav-toggle{display:flex;justify-self:end}
      .mobile-menu.is-open{display:block}
      .hero{padding:70px 0 58px;min-height:auto}
      .product-mock{margin-top:34px}
      .trust-strip{grid-template-columns:repeat(2,1fr)}
      .feature-row{grid-template-columns:1fr}
      .feature-row:nth-child(even) .feature-copy{order:0}
      .feedback-grid,.pricing-grid{grid-template-columns:1fr}
      .plan.featured{transform:none}
      .plan.featured:hover{transform:translateY(-4px)}
    }
    @media (max-width:639px){
      h1{font-size:36px}
      h2{font-size:30px}
      .section{padding:64px 0}
      .hero-actions{align-items:stretch}
      .btn{width:100%}
      .trust-strip{grid-template-columns:1fr}
      .player-window{height:220px}
      .mock-grid{grid-template-columns:1fr}
      .section-head{display:block}
      .category-entry{grid-template-columns:1fr;padding:22px}
      .value-large,.feature-copy,.feature-visual,.cta-panel{padding:24px}
      .small-value{min-height:0}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: category1 */
:root {
      --bg: #050816;
      --bg-deep: #0B1024;
      --bg-soft: #101735;
      --primary: #3E7BFF;
      --secondary: #B65CFF;
      --accent: #FF5C9A;
      --warm: #FFD166;
      --text: #E8ECF8;
      --muted: #98A2B8;
      --weak: #6F7890;
      --border: rgba(255,255,255,.12);
      --border-soft: rgba(255,255,255,.08);
      --glass: rgba(255,255,255,.065);
      --glass-strong: rgba(255,255,255,.095);
      --shadow: 0 22px 70px rgba(0,0,0,.38);
      --shadow-soft: 0 14px 42px rgba(0,0,0,.28);
      --radius-xl: 30px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-pill: 999px;
      --container: 1180px;
      --font: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
      --ease: all .28s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: var(--font);
      color: var(--text);
      line-height: 1.75;
      background:
        radial-gradient(circle at 12% 6%, rgba(62,123,255,.24), transparent 32%),
        radial-gradient(circle at 86% 18%, rgba(182,92,255,.16), transparent 30%),
        radial-gradient(circle at 78% 78%, rgba(255,92,154,.13), transparent 34%),
        linear-gradient(180deg, #050816 0%, #070A18 48%, #050816 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.026) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.7), transparent 78%);
      z-index: -2;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--ease);
    }

    a:hover,
    a:focus {
      color: #fff;
    }

    button,
    input {
      font-family: inherit;
    }

    button {
      cursor: pointer;
    }

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

    .grid-container {
      max-width: var(--container);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(5,8,22,.76);
      backdrop-filter: blur(22px);
      border-bottom: 1px solid var(--border-soft);
      box-shadow: 0 8px 34px rgba(0,0,0,.24);
    }

    .nav-shell {
      min-height: 76px;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 24px;
      position: relative;
    }

    .nav-left,
    .nav-right {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .nav-left {
      justify-content: flex-start;
    }

    .nav-right {
      justify-content: flex-end;
    }

    .brand,
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      letter-spacing: .02em;
      color: #fff;
      white-space: nowrap;
    }

    .brand {
      padding: 10px 18px;
      border: 1px solid rgba(255,255,255,.16);
      border-radius: var(--radius-pill);
      background: linear-gradient(135deg, rgba(62,123,255,.16), rgba(182,92,255,.12));
      box-shadow: inset 0 1px 0 rgba(255,255,255,.12), 0 12px 36px rgba(62,123,255,.12);
    }

    .brand:hover {
      border-color: rgba(255,255,255,.28);
      transform: translateY(-1px);
    }

    .brand-mark {
      width: 28px;
      height: 28px;
      flex: 0 0 28px;
      border-radius: 50%;
      display: inline-block;
      background:
        radial-gradient(circle at 38% 35%, #fff 0 8%, transparent 9%),
        linear-gradient(135deg, var(--primary), var(--secondary) 58%, var(--accent));
      position: relative;
      box-shadow: 0 0 28px rgba(182,92,255,.36);
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      left: 11px;
      top: 8px;
      width: 0;
      height: 0;
      border-left: 9px solid rgba(255,255,255,.92);
      border-top: 6px solid transparent;
      border-bottom: 6px solid transparent;
    }

    .nav-link {
      position: relative;
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      padding: 0 14px;
      border-radius: var(--radius-pill);
      color: var(--muted);
      font-weight: 700;
      font-size: 15px;
    }

    .nav-link::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 5px;
      height: 2px;
      border-radius: 6px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      transform: scaleX(0);
      transform-origin: center;
      transition: var(--ease);
    }

    .nav-link:hover,
    .nav-link.active {
      color: #fff;
      background: rgba(255,255,255,.055);
    }

    .nav-link:hover::after,
    .nav-link.active::after {
      transform: scaleX(1);
    }

    .mobile-nav-toggle {
      display: none;
      justify-self: end;
      width: 46px;
      height: 46px;
      border: 1px solid var(--border);
      border-radius: 14px;
      background: rgba(255,255,255,.06);
      color: #fff;
      align-items: center;
      justify-content: center;
    }

    .hamburger,
    .hamburger::before,
    .hamburger::after {
      display: block;
      width: 20px;
      height: 2px;
      background: #fff;
      border-radius: 4px;
      transition: var(--ease);
      position: relative;
    }

    .hamburger::before,
    .hamburger::after {
      content: "";
      position: absolute;
      left: 0;
    }

    .hamburger::before {
      top: -7px;
    }

    .hamburger::after {
      top: 7px;
    }

    .mobile-nav-toggle[aria-expanded="true"] .hamburger {
      background: transparent;
    }

    .mobile-nav-toggle[aria-expanded="true"] .hamburger::before {
      top: 0;
      transform: rotate(45deg);
    }

    .mobile-nav-toggle[aria-expanded="true"] .hamburger::after {
      top: 0;
      transform: rotate(-45deg);
    }

    .mobile-menu {
      display: none;
      border-top: 1px solid var(--border-soft);
      background: rgba(5,8,22,.92);
      backdrop-filter: blur(22px);
    }

    .mobile-menu.is-open {
      display: block;
    }

    .mobile-menu .grid-container {
      padding-top: 12px;
      padding-bottom: 16px;
      display: grid;
      gap: 8px;
    }

    .mobile-menu a {
      min-height: 46px;
      display: flex;
      align-items: center;
      padding: 0 16px;
      border-radius: 16px;
      color: var(--muted);
      background: rgba(255,255,255,.04);
      border: 1px solid transparent;
      font-weight: 700;
    }

    .mobile-menu a.active,
    .mobile-menu a:hover {
      color: #fff;
      border-color: rgba(62,123,255,.35);
      background: rgba(62,123,255,.12);
    }

    .section {
      padding: 92px 0;
      position: relative;
    }

    .section.tight {
      padding: 62px 0;
    }

    .section-title {
      max-width: 760px;
      margin-bottom: 34px;
    }

    .eyebrow,
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 30px;
      padding: 6px 12px;
      border-radius: var(--radius-pill);
      border: 1px solid rgba(255,255,255,.14);
      background: rgba(255,255,255,.055);
      color: #DDE5FF;
      font-size: 13px;
      font-weight: 700;
      line-height: 1;
    }

    .eyebrow::before,
    .badge.dot::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 0 14px rgba(255,92,154,.6);
    }

    h1,
    h2,
    h3,
    p {
      margin-top: 0;
    }

    h1 {
      margin-bottom: 18px;
      font-size: clamp(34px, 5vw, 56px);
      line-height: 1.12;
      letter-spacing: -.045em;
      color: #fff;
    }

    h2 {
      margin-bottom: 14px;
      font-size: clamp(28px, 3.4vw, 42px);
      line-height: 1.18;
      letter-spacing: -.03em;
      color: #fff;
    }

    h3 {
      margin-bottom: 10px;
      font-size: 22px;
      line-height: 1.35;
      color: #fff;
    }

    p {
      color: var(--muted);
      font-size: 16.5px;
    }

    .gradient-text {
      background: linear-gradient(135deg, #fff 8%, #AFC6FF 36%, #FFB3D1 82%);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .btn-row {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 48px;
      padding: 14px 23px;
      border-radius: var(--radius-pill);
      font-size: 15px;
      line-height: 1;
      font-weight: 800;
      border: 1px solid transparent;
      transition: var(--ease);
      text-align: center;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--secondary) 60%, var(--accent));
      box-shadow: 0 0 28px rgba(62,123,255,.35);
    }

    .btn-primary:hover {
      color: #fff;
      transform: translateY(-2px);
      filter: brightness(1.08);
      box-shadow: 0 0 38px rgba(182,92,255,.46);
    }

    .btn-secondary {
      color: #fff;
      border-color: var(--border);
      background: rgba(255,255,255,.06);
    }

    .btn-secondary:hover {
      color: #fff;
      border-color: rgba(62,123,255,.55);
      background: rgba(62,123,255,.12);
      transform: translateY(-2px);
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
      outline: 3px solid rgba(255,209,102,.75);
      outline-offset: 3px;
    }

    .hero {
      padding: 82px 0 70px;
      overflow: hidden;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      margin: 0 0 22px;
      padding: 0;
      list-style: none;
      color: var(--weak);
      font-size: 14px;
    }

    .breadcrumb a {
      color: var(--muted);
      font-weight: 700;
    }

    .breadcrumb a:hover {
      color: #fff;
    }

    .hero-copy {
      padding-top: 18px;
    }

    .hero-copy .lead {
      max-width: 670px;
      margin-bottom: 26px;
      color: #B9C2D8;
      font-size: 18px;
    }

    .hero-panel,
    .glass-card,
    .index-card,
    .filter-panel,
    .step-card,
    .faq-card,
    .cta-panel {
      border: 1px solid var(--border);
      background: linear-gradient(180deg, rgba(255,255,255,.083), rgba(255,255,255,.045));
      backdrop-filter: blur(18px);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-soft);
      transition: var(--ease);
    }

    .hero-panel {
      min-height: 430px;
      padding: 24px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow);
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      right: -82px;
      top: -70px;
      background: radial-gradient(circle, rgba(255,92,154,.24), transparent 68%);
    }

    .mock-search {
      position: relative;
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px;
      border-radius: 22px;
      background: rgba(5,8,22,.68);
      border: 1px solid rgba(255,255,255,.12);
      margin-bottom: 18px;
    }

    .mock-search input {
      flex: 1;
      min-width: 0;
      height: 48px;
      border: 0;
      border-radius: var(--radius-pill);
      background: rgba(255,255,255,.06);
      color: var(--text);
      padding: 0 18px;
      box-shadow: inset 0 0 0 1px rgba(255,255,255,.08);
    }

    .mock-search input::placeholder {
      color: var(--weak);
    }

    .mock-search .search-button {
      height: 48px;
      padding: 0 18px;
      border: 0;
      border-radius: var(--radius-pill);
      color: #fff;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 0 24px rgba(62,123,255,.28);
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 7px 13px;
      border-radius: var(--radius-pill);
      color: #C9D3EA;
      border: 1px solid rgba(255,255,255,.12);
      background: rgba(255,255,255,.055);
      font-size: 13px;
      font-weight: 700;
      transition: var(--ease);
    }

    .tag:hover,
    .tag.active {
      color: #fff;
      border-color: rgba(182,92,255,.55);
      background: linear-gradient(135deg, rgba(62,123,255,.18), rgba(255,92,154,.13));
      box-shadow: 0 0 24px rgba(182,92,255,.18);
      transform: translateY(-1px);
    }

    .mock-window {
      margin-top: 20px;
      border-radius: 24px;
      overflow: hidden;
      border: 1px solid rgba(255,255,255,.12);
      background: rgba(5,8,22,.66);
    }

    .mock-window-head {
      height: 48px;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 0 16px;
      background: rgba(255,255,255,.045);
      border-bottom: 1px solid rgba(255,255,255,.08);
    }

    .dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--weak);
    }

    .dot.blue {
      background: var(--primary);
    }

    .dot.pink {
      background: var(--accent);
    }

    .dot.purple {
      background: var(--secondary);
    }

    .mock-video {
      padding: 22px;
    }

    .video-frame {
      height: 148px;
      border-radius: 20px;
      background:
        radial-gradient(circle at 50% 45%, rgba(255,255,255,.12), transparent 16%),
        linear-gradient(135deg, rgba(62,123,255,.32), rgba(182,92,255,.18) 48%, rgba(255,92,154,.18));
      position: relative;
      border: 1px solid rgba(255,255,255,.12);
      overflow: hidden;
    }

    .video-frame::before {
      content: "";
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-45%, -50%);
      width: 0;
      height: 0;
      border-left: 28px solid rgba(255,255,255,.88);
      border-top: 18px solid transparent;
      border-bottom: 18px solid transparent;
      filter: drop-shadow(0 0 18px rgba(255,255,255,.3));
    }

    .progress {
      height: 8px;
      margin-top: 16px;
      border-radius: 999px;
      background: rgba(255,255,255,.08);
      overflow: hidden;
    }

    .progress span {
      display: block;
      width: 58%;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--primary), var(--accent));
    }

    .summary-strip {
      margin-top: -24px;
      position: relative;
      z-index: 2;
    }

    .summary-card {
      padding: 20px;
      border-radius: 22px;
      border: 1px solid var(--border);
      background: rgba(255,255,255,.06);
      backdrop-filter: blur(18px);
      height: 100%;
    }

    .summary-card strong {
      display: block;
      margin-bottom: 5px;
      color: #fff;
      font-size: 18px;
    }

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

    .panel-heading {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 22px;
    }

    .panel-heading p {
      max-width: 620px;
      margin-bottom: 0;
    }

    .filter-panel {
      padding: 26px;
      position: sticky;
      top: 96px;
    }

    .filter-title {
      margin-bottom: 14px;
      color: #fff;
      font-size: 18px;
      font-weight: 800;
    }

    .filter-list {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .filter-list a {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 14px;
      border-radius: 15px;
      color: var(--muted);
      background: rgba(255,255,255,.04);
      border: 1px solid transparent;
      font-weight: 700;
    }

    .filter-list a:hover,
    .filter-list a.active {
      color: #fff;
      border-color: rgba(62,123,255,.36);
      background: rgba(62,123,255,.12);
    }

    .filter-list small {
      color: var(--weak);
      font-weight: 700;
    }

    .index-list {
      display: grid;
      gap: 18px;
    }

    .index-card {
      padding: 20px;
      display: grid;
      grid-template-columns: 150px 1fr;
      gap: 20px;
      align-items: stretch;
    }

    .index-card:hover,
    .step-card:hover,
    .summary-card:hover {
      transform: translateY(-4px);
      border-color: rgba(182,92,255,.38);
      box-shadow: 0 20px 62px rgba(62,123,255,.13);
    }

    .thumb {
      min-height: 150px;
      border-radius: 22px;
      border: 1px solid rgba(255,255,255,.12);
      background:
        radial-gradient(circle at 28% 22%, rgba(255,255,255,.16), transparent 18%),
        linear-gradient(145deg, rgba(62,123,255,.34), rgba(182,92,255,.22) 55%, rgba(255,92,154,.2));
      position: relative;
      overflow: hidden;
    }

    .thumb::before {
      content: "";
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-45%, -50%);
      width: 0;
      height: 0;
      border-left: 22px solid rgba(255,255,255,.86);
      border-top: 14px solid transparent;
      border-bottom: 14px solid transparent;
    }

    .thumb::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      height: 8px;
      border-radius: 999px;
      background: linear-gradient(90deg, rgba(255,255,255,.82) 0 46%, rgba(255,255,255,.18) 46% 100%);
    }

    .index-content {
      min-width: 0;
    }

    .index-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 10px;
    }

    .status {
      display: inline-flex;
      align-items: center;
      min-height: 26px;
      padding: 5px 10px;
      border-radius: var(--radius-pill);
      font-size: 12px;
      font-weight: 800;
      color: #101735;
      background: linear-gradient(135deg, var(--warm), #FFE7A8);
    }

    .status.cool {
      color: #fff;
      background: linear-gradient(135deg, rgba(62,123,255,.85), rgba(182,92,255,.85));
    }

    .status.pink {
      color: #fff;
      background: linear-gradient(135deg, rgba(255,92,154,.9), rgba(182,92,255,.86));
    }

    .index-card p {
      margin-bottom: 14px;
    }

    .card-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      flex-wrap: wrap;
      padding-top: 12px;
      border-top: 1px solid var(--border-soft);
    }

    .update-note {
      color: var(--weak);
      font-size: 13px;
      font-weight: 700;
    }

    .guide-wrap {
      position: relative;
    }

    .guide-wrap::before {
      content: "";
      position: absolute;
      left: 50%;
      top: 64px;
      bottom: 64px;
      width: 1px;
      background: linear-gradient(180deg, transparent, rgba(62,123,255,.35), transparent);
    }

    .step-card {
      padding: 24px;
      height: 100%;
      position: relative;
    }

    .step-number {
      width: 46px;
      height: 46px;
      margin-bottom: 18px;
      border-radius: 16px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
      font-weight: 900;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 0 26px rgba(62,123,255,.25);
    }

    .notice-card {
      padding: 28px;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(255,209,102,.2);
      background:
        radial-gradient(circle at 15% 15%, rgba(255,209,102,.12), transparent 28%),
        rgba(255,255,255,.055);
      backdrop-filter: blur(18px);
    }

    .notice-list {
      display: grid;
      gap: 12px;
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
    }

    .notice-list li {
      display: flex;
      gap: 10px;
      color: var(--muted);
    }

    .notice-list li::before {
      content: "✓";
      color: var(--warm);
      font-weight: 900;
    }

    .accordion {
      background: transparent;
      border: 0;
    }

    .accordion-item {
      margin-bottom: 12px;
      border: 1px solid var(--border);
      border-radius: 20px;
      overflow: hidden;
      background: rgba(255,255,255,.055);
      backdrop-filter: blur(18px);
      transition: var(--ease);
    }

    .accordion-item.is-active {
      border-color: rgba(182,92,255,.4);
      box-shadow: 0 18px 48px rgba(62,123,255,.12);
    }

    .accordion-title {
      padding: 20px 58px 20px 22px;
      border: 0;
      color: #fff;
      font-size: 17px;
      font-weight: 800;
      line-height: 1.4;
      background: transparent;
      position: relative;
    }

    .accordion-title:hover,
    .accordion-title:focus {
      color: #fff;
      background: rgba(255,255,255,.035);
    }

    .accordion-title::before {
      right: 22px;
      margin-top: -12px;
      color: var(--accent);
      font-size: 26px;
    }

    .accordion-content {
      padding: 0 22px 22px;
      border: 0;
      background: transparent;
      color: var(--muted);
      line-height: 1.75;
    }

    .cta-panel {
      padding: 38px;
      border-radius: var(--radius-xl);
      background:
        radial-gradient(circle at 12% 10%, rgba(62,123,255,.2), transparent 34%),
        radial-gradient(circle at 88% 20%, rgba(255,92,154,.16), transparent 32%),
        linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.048));
      overflow: hidden;
      position: relative;
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      width: 220px;
      height: 220px;
      right: -80px;
      bottom: -90px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(182,92,255,.28), transparent 70%);
    }

    .cta-panel > * {
      position: relative;
      z-index: 1;
    }

    .site-footer {
      padding: 70px 0 28px;
      background:
        radial-gradient(circle at 16% 0%, rgba(62,123,255,.12), transparent 28%),
        #060918;
      border-top: 1px solid var(--border-soft);
    }

    .footer-brand {
      margin-bottom: 16px;
      font-size: 18px;
    }

    .site-footer p {
      max-width: 460px;
      margin-bottom: 0;
      font-size: 15px;
    }

    .footer-title {
      margin-bottom: 14px;
      color: #fff;
      font-size: 15px;
      font-weight: 900;
    }

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

    .footer-links a {
      color: var(--muted);
      font-size: 14px;
    }

    .footer-links a:hover {
      color: #fff;
      padding-left: 4px;
    }

    .footer-note {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
      padding: 14px;
      border-radius: 18px;
      background: rgba(255,255,255,.045);
      border: 1px solid var(--border-soft);
    }

    .copyright {
      margin-top: 44px;
      padding-top: 22px;
      border-top: 1px solid var(--border-soft);
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: var(--weak);
      font-size: 13px;
    }

    .fade-up {
      animation: fadeUp .72s ease both;
    }

    @keyframes fadeUp {
      from {
        opacity: 0;
        transform: translateY(18px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @media (max-width: 1023px) {
      .nav-left,
      .nav-right {
        display: none;
      }

      .nav-shell {
        grid-template-columns: auto 1fr auto;
        min-height: 70px;
      }

      .brand {
        justify-self: start;
        grid-column: 1 / 3;
      }

      .mobile-nav-toggle {
        display: inline-flex;
        grid-column: 3;
      }

      .hero {
        padding-top: 58px;
      }

      .filter-panel {
        position: static;
      }

      .guide-wrap::before {
        display: none;
      }

      .section {
        padding: 76px 0;
      }
    }

    @media (max-width: 767px) {
      .grid-container {
        padding-left: 18px;
        padding-right: 18px;
      }

      h1 {
        letter-spacing: -.03em;
      }

      .brand {
        max-width: calc(100vw - 92px);
        padding: 9px 12px;
        font-size: 14px;
      }

      .brand-mark {
        width: 24px;
        height: 24px;
        flex-basis: 24px;
      }

      .brand-mark::after {
        left: 9px;
        top: 7px;
        border-left-width: 8px;
        border-top-width: 5px;
        border-bottom-width: 5px;
      }

      .hero-panel {
        min-height: auto;
        padding: 18px;
      }

      .mock-search {
        display: grid;
      }

      .mock-search .search-button {
        width: 100%;
      }

      .panel-heading {
        display: block;
      }

      .index-card {
        grid-template-columns: 1fr;
      }

      .thumb {
        min-height: 170px;
      }

      .btn-row,
      .card-footer {
        align-items: stretch;
      }

      .btn,
      .card-footer .btn {
        width: 100%;
      }

      .cta-panel {
        padding: 26px;
      }

      .copyright {
        display: grid;
      }
    }

    @media (max-width: 520px) {
      .section {
        padding: 62px 0;
      }

      .hero {
        padding: 44px 0 54px;
      }

      .summary-card,
      .filter-panel,
      .index-card,
      .step-card,
      .notice-card {
        border-radius: 20px;
      }

      .tag-cloud {
        gap: 8px;
      }

      .tag {
        font-size: 12px;
      }
    }