/* 한 화면 고정 */
    body{
      overflow:hidden;
      height:100vh;
    }
    html,body{margin:0;height:100%;background:#000;overflow-x:hidden;font-family:ui-sans-serif,system-ui,-apple-system;}
    #app{position:relative; width:100vw; height:100vh;}

    /* 중앙 카피(고정) */
    .center-copy{
      position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);
      text-align:center;z-index:12;pointer-events:none;user-select:none;
      color:#eaeaea;text-shadow:0 4px 18px rgba(0,0,0,.55);
    }
    .center-copy h1{margin:0;font-weight:800;letter-spacing:.2px;font-size:clamp(28px,4.8vw,64px)}
    .center-copy p{margin:.4rem 0 0;opacity:.85;font-size:clamp(12px,1.4vw,16px)}

    /* 툴팁 */
    .tooltip{
      position:fixed;pointer-events:none;color:#fff;background:rgba(0,0,0,0.72);
      padding:4px 8px;font-size:12px;border-radius:6px;font-family:inherit;
      transform:translate(-50%,-120%);opacity:0;transition:opacity .15s ease;z-index:20;
      border:1px solid rgba(255,255,255,.08)
    }

    /* 위/아래 페이드 (원형 캐러셀 상단/하단 자연스러운 연결) */
    .fade-top,.fade-bottom{position:fixed;left:0;width:100%;pointer-events:none;z-index:11;}
    .fade-top{
      top:0;height:32vh;
      background:linear-gradient(to bottom, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 85%);
    }
    .fade-bottom{
      bottom:0;height:32vh;
      background:linear-gradient(to top, rgba(0,0,0,1) 0%, rgba(0,0,0,0) 85%);
    }