* {
      box-sizing: border-box;
    }
   body {
     margin: 0;
     min-height: 100vh;
     background:
       linear-gradient(90deg, rgba(47, 111, 180, 0.08) 0 1px, transparent 1px 100%),
       linear-gradient(0deg, rgba(24, 128, 92, 0.08) 0 1px, transparent 1px 100%),
       #f4f6f1;
     background-size: 32px 32px;
     color: #19212a;
     font-family:
       Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
       "Microsoft YaHei", sans-serif;
   }

    .page {
      width: min(720px, calc(100% - 28px));
      margin: 0 auto;
      padding: 24px 0 40px;
    }

    h1 {
      margin: 0 0 22px;
      font-size: 2.4rem;
      letter-spacing: 0;
    }

    .input-box,
    .account-box {
      background: #fff;
      background-image: none;
      border: 1px solid #d9e0e6;
      border-radius: 8px;
      padding: 16px;
    }

    .input-box {
      margin-bottom: 18px;
    }

    label {
      display: block;
      margin-bottom: 12px;
      color: #66717e;
      font-size: 0.95rem;
    }

    select,
    input {
      width: 100%;
      height: 44px;
      margin-top: 6px;
      padding: 0 12px;
      border: 1px solid #d9e0e6;
      border-radius: 8px;
      background: #fff;
      color: #19212a;
      font-size: 1rem;
    }

    button {
      width: 100%;
      height: 46px;
      border: 0;
      border-radius: 8px;
      background: #19212a;
      color: #fff;
      font-size: 1rem;
      font-weight: 700;
      cursor: pointer;
    }

    .accounts {
      display: grid;
      gap: 14px;
    }

    .account-box {
      position: relative;
      padding-bottom: 42px;
    }

    .account-title {
      font-size: 1.15rem;
      font-weight: 800;
    }

    .money {
      color: #18805c;
      font-weight: 800;
    }

    .open-button {
      position: absolute;
      right: 14px;
      bottom: 10px;
      width: 34px;
      height: 28px;
      border: 0;
      background: transparent;
      color: #19212a;
      font-size: 1.5rem;
      transform: rotate(90deg);
      cursor: pointer;
    }

    .account-box.open .open-button {
      transform: rotate(-90deg);
    }

    .records {
      display: none;
      margin-top: 14px;
      padding-top: 12px;
      border-top: 1px solid #d9e0e6;
    }

    .account-box.open .records {
      display: block;
    }

    .record {
      padding: 8px 0;
      border-bottom: 1px solid #eef1f3;
      font-size: 0.98rem;
    }

    .record:last-child {
      border-bottom: 0;
    }

    .plus {
      color: #18805c;
      font-weight: 800;
    }

    .minus {
      color: #c84b45;
      font-weight: 800;
    }

    .empty {
      color: #66717e;
      font-size: 0.95rem;
    }

   .addBtn {
     display: flex;
     align-items: center;
     justify-content: center;
     width: 100%;
     height: 46px;
     margin-top: 18px;
     border-radius: 8px;
     background: #7e857a;
     color: #fff;
     font-size: 1rem;
     font-weight: 700;
     text-decoration: none;
     cursor: pointer;
   }