html, body {
    margin: 0;
    padding: 0;
    width: 100vw;
    height: 100vh;
    overflow-y: auto;
  }
  #app {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  .links {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    justify-content: center;
    align-items: center;
    margin-top: 40px;
  }
  .icon-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: #333;
    transition: color 0.2s;
  }
  .icon-link svg {
    width: 64px;
    height: 64px;
    transition: transform 0.3s, filter 0.3s;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.1));
  }
  .icon-link:hover svg, .icon-link:focus svg {
    transform: scale(1.18) rotate(-6deg);
    filter: drop-shadow(0 8px 18px rgba(0,0,0,0.18));
  }
  .icon-label {
    margin-top: 8px;
    font-size: 16px;
    letter-spacing: 1px;
    font-weight: 500;
    z-index: 10;
  }
  .icon-label:hover {
    color: #ff9800;
    transform: scale(1.18) rotate(-32deg) translateY(-2px);
    transition: all 0.18s, transform 0.18s;
  }
  @media (max-width: 600px) {
    .links {
      gap: 18px;
    }
    .icon-link svg {
      width: 40px;
      height: 40px;
    }
    .icon-label {
      font-size: 13px;
    }
  }
  #particles-bg {
    position: fixed;
    left: 0; top: 0;
    width: 100vw; height: 100vh;
    z-index: 0;
    pointer-events: none;
  }
  .title{
    z-index: 10;
    color:#fff;
    letter-spacing:2px;font-size:2.2rem;text-shadow:0 2px 12px #fff8;
  }
  .nav-links{
    margin:32px 0 0 0;display:flex;gap:24px;justify-content:center;
    z-index: 10;
  }
  .company-root {
    min-height: 100vh;
    width: 100vw;
    overflow-x: hidden;
    overflow-y: auto;
  }
  .timeline {
    width: 100%;
  }
  .timeline-card {
    box-sizing: border-box;
    width: 100%;
    max-width: 720px;
    background: #fff;
    margin: 0 auto 0 auto;
  }
  @media (max-width: 900px) {
    .company-root {
      padding: 0;
    }
    .timeline-card {
      max-width: 98vw;
      padding: 12px;
    }
  }
  .back-link:hover {
    color: #0056b3;
  }
  .nav-btn{
    position: relative;
    overflow: hidden;
    cursor: pointer;
    padding:8px 18px;
    border-radius:6px;
    background:#1e80ff;
    color:#fff;
    text-decoration:none;
    font-weight:500;
    box-shadow:0 2px 8px #1e80ff22;
    transition: background 0.2s, box-shadow 0.2s;
  }
  .nav-btn:hover {
    background: linear-gradient(90deg,#409eff 70%,#1e80ff 100%);
    color: #fff;
    box-shadow: 0 6px 24px #409eff33, 0 2px 12px #1e80ff22;
    transform: translateY(-2px) scale(1.045);
    transition: background 0.2s, box-shadow 0.2s, transform 0.18s;
  }
  .nav-btn-active{
    background:#ff9800;box-shadow:0 2px 8px #ff980022;
  }
  .avatar-box {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 34px;
    margin-bottom: 12px;
  }
  .avatar-img {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 4px 32px #0005, 0 2px 10px #1e80ff22;
    border: 4px solid #23232622;
    background: #fff;
    z-index: 10;
  }
  @media (max-width: 600px) {
    .avatar-img {
      width: 90px;
      height: 90px;
    }
  }