/* 仿真入口 · MasterGo 191:2214 */

.stage .learn-bg__dim {
  background: rgba(0, 27, 53, 0.9);
}

.hub {
  position: absolute;
  left: 0;
  top: 88px;
  width: 1920px;
  height: 991px;
  background: rgba(0, 0, 0, 0.1);
}

.hub__bar {
  position: absolute;
  left: 0;
  top: 24px;
  width: 1920px;
  height: 66px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: 8px 32px 8px 28px;
  background: linear-gradient(270deg, rgba(0, 111, 229, 0) 0%, rgba(0, 111, 229, 0.18) 100%);
}

.hub__bar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(270deg, rgba(0, 111, 229, 0) 0%, rgba(0, 111, 229, 0.3) 100%);
  pointer-events: none;
}

.hub__title-wrap {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  height: 32px;
}

.hub__mark {
  width: 26.87px;
  height: 26.87px;
  flex-shrink: 0;
  object-fit: contain;
}

.hub__title {
  margin: 0;
  font-family: "REEJI-ZhenyanGB2.0", var(--font-display);
  font-size: 24px;
  line-height: 32px;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0;
  color: #ffffff;
  white-space: nowrap;
}

.mods {
  display: flex;
  flex-direction: row;
  width: 752px;
  height: 50px;
  flex-shrink: 0;
}

.mod {
  position: relative;
  width: 188px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  clip-path: polygon(28.5px 0, 188px 0, 159.5px 50px, 0 50px);
}

.mod.is-on {
  box-shadow: inset 0 0 20px #3597ff;
}

.mod__skin {
  position: absolute;
  left: 0;
  top: 0;
  width: 188px;
  height: 50px;
  pointer-events: none;
}

.mod.is-on .mod__skin--off,
.mod:not(.is-on) .mod__skin--on {
  display: none;
}

.mod__label {
  position: relative;
  z-index: 1;
  font-family: "REEJI-ZhenyanGB2.0", var(--font-display);
  font-size: 20px;
  line-height: 28px;
  font-weight: 500;
  letter-spacing: 2px;
  color: #ffffff;
  white-space: nowrap;
}

.mod:hover:not(.is-on) .mod__skin--off {
  filter: brightness(1.18);
}

.pane {
  position: absolute;
  left: 0;
  top: 90px;
  width: 1920px;
  height: 877px;
}

.pane[hidden] {
  display: none;
}

.intro[hidden],
.cases[hidden] {
  display: none;
}

.cases {
  position: absolute;
  left: 80px;
  top: 28px;
  width: 1760px;
  height: 720px;
}

.cases__tabs {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: stretch;
  gap: 8px;
  height: 52px;
  margin-bottom: 22px;
  border-bottom: 1px solid rgba(76, 182, 255, 0.2);
}

.case-tab {
  position: relative;
  min-width: 260px;
  height: 52px;
  padding: 0 20px 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 0;
  cursor: pointer;
  font-family: "REEJI-ZhenyanGB2.0", var(--font-display);
  font-size: 24px;
  line-height: 32px;
  font-weight: 500;
  letter-spacing: 2px;
  color: rgba(230, 244, 255, 0.5);
  white-space: nowrap;
}

.case-tab:hover:not(.is-on) {
  color: rgba(255, 255, 255, 0.88);
}

.case-tab.is-on {
  color: #ffffff;
}

.case-tab.is-on::after {
  content: "";
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: -1px;
  height: 3px;
  background: linear-gradient(90deg, transparent, #5ad4ff, transparent);
  box-shadow: 0 0 10px rgba(90, 212, 255, 0.8);
}

.cases__title {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: "REEJI-ZhenyanGB2.0", var(--font-display);
  font-size: 22px;
  line-height: 28px;
  font-weight: var(--font-weight-medium);
  letter-spacing: 1px;
  color: #ffffff;
}

.cases__title::before {
  content: "";
  width: 8px;
  height: 8px;
  flex-shrink: 0;
  background: #32c5ff;
  transform: rotate(45deg);
  box-shadow: 0 0 10px rgba(50, 197, 255, 0.7);
}

.cases__main {
  margin-top: 16px;
  padding: 28px 32px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 48px;
  background: linear-gradient(180deg, rgba(8, 42, 74, 0.42) 0%, rgba(4, 21, 37, 0.28) 100%);
  border: 1px solid rgba(76, 182, 255, 0.28);
  box-shadow: inset 0 1px 0 rgba(127, 208, 255, 0.14);
}

.cases__text {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 30px;
  font-weight: var(--font-weight-regular);
  color: rgba(230, 244, 255, 0.9);
  text-align: justify;
}

.intro {
  position: absolute;
  left: 80px;
  top: 36px;
  width: 1760px;
  height: 700px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 64px;
}

.intro__figure {
  position: relative;
  width: 760px;
  height: 470px;
  margin: 0;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 4px;
  background: linear-gradient(160deg, rgba(12, 48, 82, 0.65) 0%, rgba(4, 18, 32, 0.9) 100%);
  border: 1px solid rgba(76, 182, 255, 0.42);
  box-shadow:
    0 12px 36px rgba(0, 0, 0, 0.38),
    inset 0 1px 0 rgba(127, 208, 255, 0.18),
    inset 0 0 40px rgba(50, 197, 255, 0.07);
}

.intro__figure::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(76, 182, 255, 0.12) 0%,
    transparent 30%,
    transparent 70%,
    rgba(0, 24, 48, 0.38) 100%
  );
}

.intro__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(127, 208, 255, 0.1);
  background:
    linear-gradient(#4cb6ff, #4cb6ff) 0 0 / 20px 2px no-repeat,
    linear-gradient(#4cb6ff, #4cb6ff) 0 0 / 2px 20px no-repeat,
    linear-gradient(#4cb6ff, #4cb6ff) 100% 0 / 20px 2px no-repeat,
    linear-gradient(#4cb6ff, #4cb6ff) 100% 0 / 2px 20px no-repeat,
    linear-gradient(#4cb6ff, #4cb6ff) 0 100% / 20px 2px no-repeat,
    linear-gradient(#4cb6ff, #4cb6ff) 0 100% / 2px 20px no-repeat,
    linear-gradient(#4cb6ff, #4cb6ff) 100% 100% / 20px 2px no-repeat,
    linear-gradient(#4cb6ff, #4cb6ff) 100% 100% / 2px 20px no-repeat;
  opacity: 0.7;
}

.intro__img {
  position: relative;
  z-index: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(1.06) contrast(1.03);
}

.intro__body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.intro__lead {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 20px;
  line-height: 32px;
  font-weight: var(--font-weight-regular);
  color: rgba(255, 255, 255, 0.92);
}

.intro__points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.intro__points li {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 16px;
}

.intro__idx {
  width: 32px;
  flex-shrink: 0;
  font-family: var(--font-num);
  font-size: 20px;
  line-height: 28px;
  font-weight: var(--font-weight-medium);
  color: #4cb6ff;
}

.intro__point {
  min-width: 0;
}

.intro__point strong {
  display: block;
  font-family: var(--font-sans);
  font-size: 18px;
  line-height: 28px;
  font-weight: var(--font-weight-medium);
  color: #ffffff;
}

.intro__point span {
  display: block;
  margin-top: 4px;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 24px;
  font-weight: var(--font-weight-regular);
  color: rgba(255, 255, 255, 0.72);
}

.sim-go {
  position: absolute;
  left: 775px;
  top: 768px;
  width: 371px;
  height: 88px;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 24px;
  line-height: 32px;
  font-weight: var(--font-weight-medium);
  color: #ffffff;
}

.sim-go__bg {
  position: absolute;
  left: 0;
  top: 0;
  width: 371px;
  height: 88px;
  pointer-events: none;
}

.sim-go__label {
  position: relative;
  z-index: 1;
}

.sim-go:hover {
  filter: brightness(1.08);
}

.lectures {
  position: absolute;
  left: 0;
  top: 24px;
  width: 1920px;
  display: flex;
  flex-direction: row;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
  padding: 24px;
}

.player__poster,
.player__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: transparent;
}

.player__video {
  object-fit: contain;
}

.player__poster[hidden],
.player__video[hidden] {
  display: none;
}

.quiz {
  position: absolute;
  left: 240px;
  top: 12px;
  width: 1440px;
  height: 852px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 12px 0 32px;
}

.qcard {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px;
  background: rgba(13, 59, 94, 0.8);
  border-radius: 16px;
}

.qcard__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 24px;
  font-weight: var(--font-weight-medium);
  color: #7aedff;
}

.qcard__stem {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 24px;
  font-weight: var(--font-weight-medium);
  color: #ffffff;
}

.qcard__opts {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.qcard__opt {
  min-height: 48px;
  padding: 12px 16px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
  border-radius: 6px;
  text-align: left;
}

.qcard__opt:hover:not(.is-on) {
  background: rgba(44, 143, 214, 0.16);
}

.qcard__opt.is-on {
  background: rgba(44, 143, 214, 0.3);
}

.qcard__mark {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  border: 1.5px solid rgba(0, 255, 238, 0.55);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qcard__mark--box {
  border-radius: 4px;
}

.qcard__opt.is-on .qcard__mark {
  border-color: #00ffee;
  background: #00ffee;
}

.qcard__opt.is-on .qcard__mark::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ffffff;
}

.qcard__opt.is-on .qcard__mark--box::after {
  width: 8px;
  height: 4px;
  border-radius: 0;
  background: none;
  border: 2px solid #ffffff;
  border-top: 0;
  border-right: 0;
  transform: translateY(-1px) rotate(-45deg);
}

.qcard__opt-text {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 24px;
  color: #ffffff;
}

.qcard__result {
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 16px;
  background: rgba(87, 212, 184, 0.1);
  border-radius: 6px;
}

.qcard__result[hidden] {
  display: none;
}

.qcard__verdict {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 24px;
  font-weight: var(--font-weight-medium);
  color: #ffffff;
}

.qcard__verdict em {
  font-style: normal;
  color: #00ffee;
}

.qcard__verdict span {
  color: #f5222d;
}

.qcard__verdict.is-ok span {
  color: #00ffee;
}

.qcard__parse-label {
  display: block;
  width: 80px;
  height: 21px;
  margin-bottom: 12px;
}

.qcard__parse-body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 22px;
  color: #ffffff;
}