/* 阡陌发展品牌登录页：公司 Logo 与企业画册实景素材 */
.portal-login {
  grid-template-columns: minmax(680px, 1.75fr) minmax(430px, .9fr);
  background:
    radial-gradient(circle at 33% 24%, rgba(255,255,255,.98) 0 19%, rgba(247,250,255,.96) 47%, rgba(232,241,252,.98) 100%);
}

.portal-intro {
  padding: 38px 60px;
  background:
    linear-gradient(115deg, rgba(255,255,255,.42), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,.28), rgba(235,244,254,.2));
}

.portal-intro::before {
  content: "";
  position: absolute;
  z-index: 0;
  inset: 0;
  background-image:
    linear-gradient(rgba(39,113,192,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(39,113,192,.035) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, transparent 10%, #000 55%, #000 100%);
  pointer-events: none;
}

.portal-intro::after {
  background: linear-gradient(100deg, transparent 51%, rgba(233,242,253,.38) 78%, rgba(222,235,251,.76));
}

.company-brand {
  height: 68px;
}

.company-brand img {
  display: block;
  width: 310px;
  max-width: 42vw;
  height: auto;
  object-fit: contain;
}

.intro-copy {
  margin-top: 39px;
}

.intro-copy h1 {
  margin-bottom: 15px;
  color: #1555a5;
  font-size: clamp(40px, 3.2vw, 56px);
  line-height: 1.18;
  letter-spacing: 2px;
}

.intro-copy h2 {
  margin-bottom: 28px;
  color: #27384e;
  font-size: clamp(20px, 1.55vw, 27px);
  letter-spacing: 1px;
}

.intro-copy h3 {
  margin-bottom: 8px;
  color: #1457aa;
  font-size: clamp(18px, 1.25vw, 23px);
  letter-spacing: 1px;
}

.intro-copy p {
  margin-bottom: 35px;
  color: #285d99;
  font-family: "STKaiti", "KaiTi", serif;
  font-size: 18px;
  letter-spacing: 5px;
}

.feature-line {
  gap: 16px;
  font-size: 15px;
}

.feature-line b {
  background: rgba(255,255,255,.42);
}

.blueprint {
  z-index: 1;
  inset: 175px 0 0 24%;
  opacity: .76;
}

.blueprint svg {
  top: 12px;
  right: -3%;
  width: 82%;
  height: 62%;
}

.company-building {
  position: absolute;
  z-index: 2;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 53vh;
  min-height: 360px;
  object-fit: contain;
  object-position: center bottom;
  filter: saturate(.96) contrast(1.02);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, rgba(0,0,0,.55) 9%, #000 22%);
  mask-image: linear-gradient(to bottom, transparent 0, rgba(0,0,0,.55) 9%, #000 22%);
}

.portal-card-wrap {
  padding: 42px 5vw 42px 24px;
}

.portal-card {
  width: min(526px, 100%);
  min-height: 704px;
  padding: 58px 50px 40px;
  border-radius: 16px;
  box-shadow: 0 15px 46px rgba(25,69,123,.16);
}

.auth-panel > h2 {
  margin-top: 7px;
}

.portal-card.registering {
  min-height: 835px;
  padding-top: 34px;
  padding-bottom: 28px;
}

@media (max-height: 820px) and (min-width: 1051px) {
  .portal-intro { padding-top: 27px; }
  .company-brand { height: 56px; }
  .company-brand img { width: 260px; }
  .intro-copy { margin-top: 25px; }
  .intro-copy h1 { font-size: 43px; }
  .intro-copy h2 { margin-bottom: 20px; }
  .intro-copy p { margin-bottom: 22px; }
  .company-building { height: 50vh; min-height: 310px; }
  .portal-card { min-height: 650px; padding-top: 40px; }
  .auth-panel > h2 { margin-bottom: 22px; }
  .role-tabs { margin-bottom: 26px; }
  .auth-panel > label { margin-bottom: 19px; }
  .security-copy { margin-top: 25px; }
  .portal-card.registering { min-height: 760px; padding-top: 22px; }
  .portal-card.registering .input-shell,
  .portal-card.registering .verify-row > button { height: 45px; }
  .portal-card.registering .register-head { margin-bottom: 14px; }
  .portal-card.registering .auth-panel > label,
  .portal-card.registering .register-grid > label { margin-bottom: 8px; }
}

@media (max-width: 1050px) {
  .portal-login { grid-template-columns: 1fr; }
  .portal-intro { display: none; }
  .portal-card-wrap {
    padding: 25px;
    background:
      linear-gradient(rgba(239,246,255,.88), rgba(222,237,254,.92)),
      url('/assets/qimud-building.jpg') left bottom / cover no-repeat;
  }
}