* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  width: 100%;
}
body .app {
  width: 100%;
}
body .app .container {
  width: 1440px;
  height: 100%;
  margin: 0 auto;
  overflow: hidden;
}
/* ── Responsive ── */
@media only screen and (max-width: 1700px) {
  body .app .container {
    width: 92% !important;
    max-width: 1440px;
  }
}
@media only screen and (max-width: 1470px) {
  body .app .contactpage {
    height: auto;
    padding: 60px 0;
  }
  body .app .contactpage .container {
    padding: 0 4%;
  }
}
@media only screen and (max-width: 1280px) {
  body .app .contactpage .container {
    flex-wrap: wrap;
    gap: 24px;
  }
  body .app .contactpage .container .left,
  body .app .contactpage .container .main,
  body .app .contactpage .container .right {
    width: 48%;
  }
  body .app .contactpage .container .right {
    width: 100%;
  }
}
@media only screen and (max-width: 1024px) {
  body .app .contactpage {
    padding: 50px 0;
  }
  body .app .contactpage .container {
    flex-direction: column;
  }
  body .app .contactpage .container .left,
  body .app .contactpage .container .main,
  body .app .contactpage .container .right {
    width: 100%;
    height: auto;
  }
  body .app .contactpage .container .left h1 {
    font-size: 28px !important;
  }
  body .app .contactpage .container .left .contact {
    height: auto;
    margin-bottom: 24px;
  }
  body .app .contactpage .container .left .contact .content {
    height: auto;
  }
  body .app .contactpage .container .main {
    height: auto;
  }
  body .app .contactpage .container .right {
    height: auto;
  }
  body .app .contactpage .container .right .upload {
    height: auto;
    padding-bottom: 24px;
  }
  body .app .contactpage .container .right .upload p {
    height: auto;
  }
  body .app .contactpage .container .right .upload .security {
    height: auto;
  }
  body .app .contactpage .container .right .qr {
    height: auto;
    min-height: 60px;
  }
}
@media only screen and (max-width: 800px) {
  body .app .contactpage {
    padding: 40px 0;
  }
  body .app .contactpage .container .left h1 {
    font-size: 24px !important;
  }
  body .app .contactpage .container .left .contact .content span {
    font-size: 12px !important;
  }
  body .app .contactpage .container .left .contact .content p {
    font-size: 14px !important;
  }
  body .app .contactpage .container .main {
    padding: 16px;
  }
  body .app .contactpage .container .main .input p {
    font-size: 12px !important;
  }
  body .app .contactpage .container .main button span {
    font-size: 14px !important;
  }
  body .app .contactpage .container .right .upload {
    height: auto;
    padding-bottom: 24px;
  }
  body .app .contactpage .container .right .upload h2 {
    font-size: 16px !important;
  }
  body .app .contactpage .container .right .upload p {
    font-size: 12px !important;
  }
}
@media only screen and (max-width: 640px) {
  body .app .contactpage {
    padding: 30px 0;
  }
  body .app .contactpage .container .left h1 {
    font-size: 22px !important;
  }
  body .app .contactpage .container .left .contact {
    margin-bottom: 12px;
  }
  body .app .contactpage .container .left .contact .content p {
    font-size: 13px !important;
  }
  body .app .contactpage .container .main {
    padding: 14px;
  }
}