/* 超大屏幕设备 - 大型桌面显示器 */
@media (min-width: 1400px) {
  .container {
    max-width: 1320px;
  }
  
  .banner-title h1 {
    font-size: 64px;
    line-height: 1.2;
  }
  
  .feature-box-content h3 {
    font-size: 22px;
  }
  
  .feture-single-box, .advantage-single-box {
    height: 140px;
  }
}

/* 大屏幕设备 - 普通桌面 */
@media (min-width: 1200px) and (max-width: 1399px) {
  .banner-title h1 {
    font-size: 52px;
    line-height: 1.2;
  }
  
  .feature-box-content h3 {
    font-size: 20px;
  }
  
  .feture-single-box, .advantage-single-box {
    height: 130px;
  }
}

/* 中等屏幕设备 - 小桌面/大平板 */
@media (min-width: 992px) and (max-width: 1199px) {
  .banner-title h1 {
    font-size: 46px;
    line-height: 1.2;
  }
  
  .hostlux_menu > ul > li > a {
    margin: 25px 10px;
    font-size: 16px;
  }
  
  .section-title h1 {
    font-size: 36px;
  }
  
  .feture-single-box, .advantage-single-box {
    height: auto;
    padding: 20px 15px;
  }
  
  .feature-box-content h3 {
    font-size: 18px;
  }
  
  .feture-description p {
    font-size: 14px;
  }
}

/* 小屏幕设备 - 平板 */
@media (min-width: 768px) and (max-width: 991px) {
  .hostlux_menu {
    display: none;
  }
  
  .banner-area {
    padding: 100px 0;
  }
  
  .banner-title h1 {
    font-size: 42px;
    line-height: 1.3;
  }
  
  .banner-description p {
    width: 100%;
  }
  
  .section-title h1 {
    font-size: 32px;
  }
  
  .feture-single-box, .advantage-single-box {
    margin: 20px auto;
    height: auto;
    padding: 25px 20px;
  }
  
  .feture-content {
    text-align: center;
  }
  
  .feture-signal-icon {
    float: none;
    display: block;
    transform: translateY(0);
    margin: 0 auto 15px;
  }
  
  .feture-title h4 {
    text-align: center;
    padding-left: 0;
  }
  
  .feture-description p {
    padding-left: 0;
    text-align: center;
  }
  
  .tab-thumb img {
    width: 100%;
    margin: 50px 0 30px;
  }
  
  .contact-thumb img {
    margin: 0 0 30px;
  }
}

/* 超小屏幕设备 - 手机 */
@media (max-width: 767px) {
  .hostlux_menu {
    display: none;
  }
  
  .logo img {
    max-width: 120px;
  }
  
  .banner-area {
    padding: 80px 0;
    min-height: auto;
  }
  
  .banner-title h1 {
    font-size: 32px;
    line-height: 1.3;
    margin-bottom: 15px;
  }
  
  .banner-title h5 {
    font-size: 18px;
    padding: 5px 15px;
    margin-bottom: 10px;
  }
  
  .banner-description p {
    font-size: 16px;
    width: 100%;
  }
  
  .section-title h1 {
    font-size: 28px;
    line-height: 1.3;
  }
  
  .section-title p {
    font-size: 16px;
  }
  
  .feture-single-box, .advantage-single-box {
    margin: 15px auto;
    height: auto;
    padding: 20px 15px;
    width: 100%;
  }
  
  .feture-title h4 {
    font-size: 18px;
  }
  
  .feture-description p {
    font-size: 14px;
  }
  
  .tab-btn-4 ul li {
    margin: 15px 10px 0;
  }
  
  .tab-btn-4 ul li button {
    font-size: 16px;
  }
  
  .tab-thumb {
    display: none;
  }
  
  .application-single-box {
    margin-bottom: 30px;
    padding: 30px 20px;
  }
  
  .contact-thumb img {
    margin: 0 0 30px;
  }
  
  .form-box input, 
  .form-box textarea {
    margin: 8px 0 0;
    padding: 12px 15px;
  }
  
  .form-box textarea {
    height: 150px;
  }
  
  .try-now {
    width: 200px;
    height: 60px;
    margin: 30% auto 0;
  }
  
  .try-now p {
    font-size: 24px;
    line-height: 60px;
    letter-spacing: 2px;
  }
  
  .protect, .secret {
    width: 100%;
    margin-left: 0 !important;
  }
  
  .sj-title {
    font-size: 36px !important;
  }
  
  .sj-box {
    width: 100%;
    margin: 15px 0;
  }
  
  .sj-box p {
    font-size: 20px;
  }
  
  .col1, .col2, .col3, .col4,
  .secret-col1, .secret-col2, .secret-col3, .secret-col4 {
    margin: 20px auto !important;
  }
}

/* 特小屏幕设备 */
@media (max-width: 480px) {
  .banner-title h1 {
    font-size: 28px;
  }
  
  .banner-title h5 {
    font-size: 16px;
    padding: 4px 12px;
  }
  
  .section-title h1 {
    font-size: 24px;
  }
  
  .feture-title h4 {
    font-size: 16px;
  }
  
  .feture-description p {
    font-size: 13px;
  }
  
  .tab-btn-4 ul li {
    margin: 12px 5px 0;
  }
  
  .tab-btn-4 ul li button {
    font-size: 14px;
  }
  
  .try-now {
    width: 160px;
    height: 50px;
  }
  
  .try-now p {
    font-size: 20px;
    line-height: 50px;
    letter-spacing: 1px;
  }
  
  .sj-title {
    font-size: 28px !important;
  }
  
  .sj-box p {
    font-size: 18px;
  }
}

/* 超特小屏幕设备 */
@media (max-width: 320px) {
  .banner-title h1 {
    font-size: 24px;
  }
  
  .section-title h1 {
    font-size: 22px;
  }
  
  .feture-single-box, .advantage-single-box {
    padding: 15px 10px;
  }
  
  .feture-title h4 {
    font-size: 15px;
  }
  
  .try-now {
    width: 140px;
    height: 45px;
  }
  
  .try-now p {
    font-size: 18px;
    line-height: 45px;
  }
}