/* 虚拟仿真产品入口 · 1920×1080 */

.portal-title {
  position: absolute;
  left: 0;
  top: 148px;
  width: 1920px;
  margin: 0;
  text-align: center;
  font-family: "REEJI-ZhenyanGB2.0", var(--font-display);
  font-size: 56px;
  line-height: 64px;
  font-weight: 700;
  letter-spacing: 4px;
  color: #ffffff;
}

.portal-sub {
  position: absolute;
  left: 0;
  top: 228px;
  width: 1920px;
  margin: 0;
  text-align: center;
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 26px;
  letter-spacing: 2px;
  color: #bce8ff;
}

.portal-grid {
  position: absolute;
  left: 120px;
  top: 300px;
  width: 1680px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 36px;
}

.portal-card {
  position: relative;
  height: 248px;
  display: flex;
  overflow: hidden;
  text-decoration: none;
  color: #ffffff;
  background: linear-gradient(180deg, rgba(7, 40, 78, 0.92) 0%, rgba(4, 18, 40, 0.94) 100%);
  box-shadow: inset 0 0 0 1px rgba(76, 182, 255, 0.45);
  transition: transform 0.28s ease, filter 0.28s ease;
}

.portal-card__img {
  width: 360px;
  height: 248px;
  flex-shrink: 0;
  object-fit: cover;
}

.portal-card__body {
  min-width: 0;
  padding: 32px 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.portal-card__name {
  margin: 0;
  font-family: "REEJI-ZhenyanGB2.0", var(--font-display);
  font-size: 26px;
  line-height: 36px;
  font-weight: 700;
}

.portal-card__lead {
  margin: 0;
  font-size: 16px;
  line-height: 24px;
  color: #bce8ff;
}

.portal-card__go {
  margin-top: 8px;
  font-size: 16px;
  line-height: 24px;
  letter-spacing: 2px;
  color: #40ffd4;
}

.portal-card:hover {
  transform: translateY(-6px);
  filter: brightness(1.08);
}

.portal-card.is-closed {
  cursor: default;
}

.portal-card.is-closed:hover {
  transform: none;
  filter: none;
}

/* 设计端 / 制作工具 · 与上方实训产品区分 */
.portal-tools {
  position: absolute;
  left: 120px;
  top: 848px;
  width: 1680px;
  pointer-events: none;
}

.portal-tools__title {
  margin: 0 0 14px;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 24px;
  font-weight: 500;
  letter-spacing: 3px;
  color: rgba(188, 232, 255, 0.72);
}

.portal-tools__list {
  pointer-events: auto;
}

.portal-tool {
  position: relative;
  height: 128px;
  display: flex;
  overflow: hidden;
  text-decoration: none;
  color: #ffffff;
  background: linear-gradient(180deg, rgba(7, 40, 78, 0.78) 0%, rgba(4, 18, 40, 0.86) 100%);
  box-shadow: inset 0 0 0 1px rgba(121, 191, 249, 0.32);
  transition: transform 0.28s ease, filter 0.28s ease;
}

.portal-tool__img {
  width: 128px;
  height: 128px;
  flex-shrink: 0;
  object-fit: contain;
  padding: 22px;
  box-sizing: border-box;
  background: rgba(4, 22, 48, 0.55);
}

.portal-tool__body {
  min-width: 0;
  padding: 28px 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}

.portal-tool__name {
  margin: 0;
  font-family: "REEJI-ZhenyanGB2.0", var(--font-display);
  font-size: 22px;
  line-height: 32px;
  font-weight: 700;
}

.portal-tool__lead {
  margin: 0;
  font-size: 15px;
  line-height: 22px;
  color: rgba(188, 232, 255, 0.88);
}

.portal-tool__go {
  margin-top: 4px;
  font-size: 15px;
  line-height: 22px;
  letter-spacing: 2px;
  color: #79bff9;
}

.portal-tool:hover {
  transform: translateY(-4px);
  filter: brightness(1.06);
}