#dcl-demo {
    font-family: 'Noto Sans', Arial, sans-serif;
    background: none !important;
  }
  #dcl-demo .super-card {
    max-width: 1180px;
    margin: 0 auto 0 auto;
    border-radius: 22px;
    box-shadow: 0 8px 38px #d0d8e8bb;
    border: 2.2px solid #9daccce8;
    background: #fff;
    padding: 0;
    overflow: visible;
  }
  #dcl-demo .progress-bar-horizontal {
    width: 99%; margin: 38px auto 0 auto;
    display: flex; flex-direction: row; justify-content: center; align-items: flex-end;
    position: relative; z-index: 3;
  }
  #dcl-demo .progress-bar-aux {
    width: 95%; margin: 0 auto 12px auto;
    display: flex; flex-direction: row; justify-content: center; align-items: flex-start;
    position: relative; z-index: 2;
    height: 26px;
  }
  #dcl-demo .aux-dot, #dcl-demo .aux-dot-empty {
    width: 18px; height: 18px; border-radius: 50%; border: 2px dashed #cfd9ec;
    background: #f9faff; margin-top: 0; display: flex; align-items: center; justify-content: center;
    font-size: 0.97em; color: #b3b9d3;
    transition: all .2s;
    position: relative;
  }
  #dcl-demo .aux-dot-active {
    border-color: #FFD54F !important;
    background: #fff6d7 !important;
    color: #b4880b !important;
    box-shadow: 0 0 0 4px #ffe28d44;
    animation: dcl-aux-bounce .5s infinite alternate;
  }
  @keyframes dcl-aux-bounce { 0%{transform:scale(1);} 100%{transform:scale(1.13);} }
  #dcl-demo .aux-dash {
    display: block; width: 38px; height: 3px;
    border-bottom: 2px dashed #d8e3f7;
    margin: 8px 0 0 0;
  }
  #dcl-demo .aux-dot-empty { background: none; border: none; }
  
  #dcl-demo .prog-step {
    border-radius: 11px;
    padding: 8px 34px;
    font-size: 1em;
    color: #456199;
    background: #fafdff;
    border: 2.2px solid #d0d8e8;
    min-width: 185px;             /* 足够大（你可以慢慢调）*/
            /* （可选）限制最大宽度 */
    text-align: center;
    font-weight: 600;
    position: relative;
    transition: background .16s, border-color .16s, color .16s;
    margin: 2px 0;
    flex: 1;
    margin-right: 8px;
    box-shadow: 0 2px 8px #e0e6f321;
    letter-spacing: 0.04em;
    display: flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;         /* 强制一行，不换行！ */
    overflow: hidden;            /* 超出部分隐藏（可选）*/
    text-overflow: ellipsis;     /* 超长显示省略号（可选）*/
  }
  
  #dcl-demo .prog-step:last-child { margin-right: 0; }
  #dcl-demo .prog-step.active { border-color: #3888fa !important; background: #eaf3ff !important; color: #1769c1 !important; box-shadow: 0 3px 16px #afd3fa37;}
  #dcl-demo .prog-step.aux { border-color: #d7b755; background: #fffbeb; color: #b4880b;}
  #dcl-demo .prog-arrow {
    color: #aac4f1;
    font-size: 2em;
    align-self: center;
    margin: 0 4px;
    user-select: none;
    pointer-events: none;
    height: 36px;
    display: flex;
    align-items: center;
  }
  #dcl-demo .flex-container {
    display: flex;
    align-items: flex-start;
    gap: 0;
    padding: 0;
    min-height: 530px;
  }
  #dcl-demo .left-col {
    flex: 1;
    min-width: 360px;
    max-width: 650px;
    padding: 22px 30px 32px 34px;
    display: flex;
    flex-direction: column;
    gap: 0;
    border-radius: 22px 0 0 22px;
    background: #fff;
    justify-content: flex-start;
  }
  #dcl-demo .left-title {
    font-size: 1.28em;
    color: #20519a;
    font-weight: 700;
    margin: 0px 0 22px 0;
    text-align: center;
    letter-spacing: 0.03em;
    margin-top: -25px;
    margin-bottom: 42px;
  }
  #dcl-demo .divider-vertical {
    width: 0;
    border-left: 2.5px dashed #a4b5d0;
    height: auto;
    min-height: 420px;
    margin: 32px 0 32px 0;
    margin-right: 54px;
    
    opacity: 0.28;
    position: relative;
    z-index: 2;
    pointer-events: none;
  }
  #dcl-demo .right-col {
    flex: 1;
    min-width: 360px;
    max-width: 540px;
    
    border-radius: 0 22px 22px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    overflow: visible;
    padding: 0 10px 0 0;
    position: relative;
  }
  #dcl-demo .right-title {
    width: 100%;
    text-align: center;
    font-size: 1.25em;
    color: #20519a;
    font-weight: 700;
    margin-left: -40px;
    margin-top: -2px;
    margin-bottom: 14px;
    letter-spacing: 0.02em;
  }
  #dcl-demo #cube3d {
    width: 100%;
    height: 410px;
    min-width: 240px;
    background: none;
    margin-left: -40px;
    margin-top: 0;
  }
  #dcl-demo .case-card {
    background: #fafdff;
    border-radius: 12px;
    border: 2px solid #e0e9f7;
    /* 加大padding：上下26px，左右21px */
    padding: 24px 21px 21px 21px;
    margin-bottom: 0px;
    margin-top: 12px;   /* 上下margin也可略增，卡片更分明 */
    box-shadow: 0 2px 12px #e0e9f71e;
  }
   
  
  #dcl-demo .case-title { color: #2b416e; font-size: 1.13em; font-weight: bold; margin-bottom: 8px;}
  #dcl-demo .case-row { display: flex; gap: 14px; align-items: flex-start;}
  #dcl-demo .case-img { width: 76px; height: 76px; border-radius: 9px; background: #f3f5fa; object-fit: contain; border: 1.2px solid #e4eaf3; box-shadow: 0 2px 6px #d2e7f833;}
  #dcl-demo .case-content { flex: 1; }
  #dcl-demo .case-q { font-size: 0.9em; color: #386393; margin-bottom: 5px;}
  #dcl-demo .case-meta { font-size: .8em; color: #7995b6; margin-bottom: 3px;}
  #dcl-demo .case-ans { font-size: .8em; color: #43863d; margin-bottom: 2px;}
  #dcl-demo .aux-block { background: #f7f6ea; border-radius: 9px; border: 1.7px dashed #e2c962; padding: 12px 13px; color: #8d761c; margin: 18px 0 10px 0;}
  #dcl-demo .control-btn {
    margin: 20px 8px 5px 0;
    display: inline-block;
    background: linear-gradient(90deg,#A2D5C6,#A4CCD9,#F0E4D3);
    color: #175e8d;
    font-weight: 600;
    border: none;
    border-radius: 9px;
    font-size: 1.05em;
    padding: 8px 22px;
    box-shadow: 0 2px 7px #d2e7f822;
    cursor: pointer;
    transition: all 0.17s;
  }
  #dcl-demo .control-btn:active { background: #e7f0fa;}
  #dcl-demo .control-btn:hover {
    background: linear-gradient(90deg, #e6f3fc 20%, #cbe7f5 80%);
    box-shadow: 0 6px 20px #b8c4e844;
    color: #1769c1;
  }
  #dcl-demo .case-row:hover {
    background: #f3faff;
    box-shadow: 0 2px 10px #d0e6fa44;
    border-radius: 11px;
    transition: 0.16s;
  }

  #dcl-demo #btn-block {
    display: flex;
    justify-content: center;   /* 居中，可改为flex-end靠右 */
    gap: 14px;
    margin-top: 22px;
  }
  


  #dcl-demo .msg-tip { text-align: center; color: #3786be; font-size: 1.05em; margin-top: 14px; min-height: 22px;}
  @media (max-width:1200px){
    #dcl-demo .super-card {max-width: 99vw;}
    #dcl-demo .flex-container {flex-direction: column; gap:18px;}
    #dcl-demo .left-col, #dcl-demo .right-col {max-width:98vw; border-radius:22px;}
    #dcl-demo .divider-vertical {display: none;}
    #dcl-demo #cube3d {height:320px;}
    #dcl-demo .progress-bar-horizontal {padding: 0 8px;}
  }