@media (max-width: 768px) {
  .wd1200 {
    width: 100%;
    padding: 0 15px;
  }

  .index-search {
    padding: 20px 0;
  }

  .index-search .key {
    flex-direction: column;
    align-items: flex-start;
  }

  .index-search .key .word {
    margin-left: 0;
    margin-top: 10px;
  }

  .index-search .key .word span {
    display: block;
    margin-bottom: 5px;
  }

  .search-box {
    margin-top: 15px;
  }

  .search-box .input {
    flex: 1;
  }

  .search-box .input input {
    width: 100%;
    padding: 10px 15px;
    font-size: 14px;
  }

  .search-box .button button {
    padding: 10px 15px;
  }

  .leave-contain {
    padding: 30px 0;
  }

  .leave-contain .title {
    font-size: 18px;
    text-align: center;
    margin-bottom: 25px;
    padding: 0 10px;
  }

  .leave-box {
    padding: 20px 15px;
  }

  .l-small {
    flex-direction: column;
    gap: 15px;
  }

  .l-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .l-item span {
    font-size: 14px;
    margin-bottom: 8px;
    white-space: nowrap;
  }

  .l-item .input {
    width: 100%;
  }

  .l-item .input input {
    width: 100%;
    padding: 12px 15px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
  }

  .l-big {
    flex-direction: column;
    align-items: flex-start;
    margin-top: 20px;
  }

  .l-big span {
    font-size: 14px;
    margin-bottom: 8px;
  }

  .l-big .text {
    width: 100%;
  }

  .l-big .text textarea {
    width: 100%;
    min-height: 120px;
    padding: 12px 15px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
    resize: vertical;
  }

  .l-send {
    flex-direction: column;
    gap: 15px;
    margin-top: 25px;
  }

  .l-send button {
    width: 100%;
    padding: 12px 20px;
    font-size: 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
  }

  .l-send .button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
  }

  .l-send .reset {
    background: #f5f5f5;
    color: #333;
  }

  .l-send button:hover {
    opacity: 0.9;
  }

  .l-send button:active {
    transform: scale(0.98);
  }
}

@media (max-width: 480px) {
  .leave-contain .title {
    font-size: 16px;
  }

  .leave-box {
    padding: 15px 10px;
  }

  .l-item .input input,
  .l-big .text textarea {
    padding: 10px 12px;
    font-size: 13px;
  }

  .l-send button {
    padding: 10px 15px;
    font-size: 15px;
  }
}