/* 跃迁引擎计划 UI4：星际登舱终端登录框 */
.login-screen {
  background-position: center center;
}

.login-screen::after {
  background:
    linear-gradient(90deg, rgba(2, 8, 26, .03) 36%, rgba(2, 8, 26, .55) 68%, rgba(2, 8, 26, .94) 100%),
    radial-gradient(circle at 74% 12%, rgba(63, 224, 255, .13), transparent 30%);
}

.login-card {
  top: 50%;
  right: clamp(24px, 4vw, 72px);
  width: min(724px, calc(100vw - 48px));
  max-height: calc(100vh - 34px);
  margin: 0;
  padding: 13px 8px 11px;
  gap: 0;
  overflow: auto;
  border: 1px solid rgba(44, 221, 255, .86);
  border-radius: 30px;
  background:
    linear-gradient(180deg, #071a3d, #061735);
  box-shadow:
    0 24px 70px rgba(0, 4, 22, .55),
    0 0 42px rgba(29, 200, 255, .12),
    inset 0 1px rgba(255, 255, 255, .05);
  transform: translateY(-50%);
  scrollbar-width: thin;
  scrollbar-color: rgba(72, 226, 255, .55) transparent;
}

.login-card::before {
  top: 7px;
  right: 32px;
  left: 32px;
  z-index: 3;
  width: auto;
  height: 2px;
  border: 0;
  border-radius: 0;
  background: linear-gradient(90deg, transparent, rgba(83, 235, 255, .92) 20%, rgba(246, 208, 86, .62) 76%, transparent);
  box-shadow: 0 0 8px rgba(70, 224, 255, .34);
  opacity: 1;
}

.login-card::after {
  inset: auto 28px 57px;
  width: auto;
  height: 1px;
  border: 0;
  border-radius: 0;
  background: linear-gradient(90deg, transparent, rgba(65, 118, 164, .62), transparent);
  opacity: 1;
}

.login-terminal-status {
  display: none;
  justify-content: space-between;
  margin: 0 4px 17px;
  color: #6eeaff;
  font: 700 10px/1.2 Inter, sans-serif;
  letter-spacing: .16em;
}

.login-terminal-status span::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 5px;
  margin: 0 7px 1px 0;
  border-radius: 50%;
  background: #68eaff;
  box-shadow: 0 0 10px #4beaff;
}

.login-card .login-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  width: fit-content;
  max-width: 100%;
  margin: 0;
  margin-inline: auto;
  text-align: left;
}

.login-card .login-brand .brand-mark {
  flex: 0 0 122px !important;
  width: 122px !important;
  height: 122px !important;
  margin: 0 -18px 0 0 !important;
  border-radius: 27px;
  filter: drop-shadow(0 0 24px rgba(53, 231, 255, .4));
}

.login-card .login-brand > div:last-child {
  display: flex;
  flex: 0 0 330px;
  width: 330px;
  flex-direction: column;
  align-items: center;
  min-width: 0;
  text-align: center;
  transform: translateX(-8px);
}

.login-card .login-kicker {
  display: block;
  margin-bottom: 5px;
  color: #70ebff;
  font: 750 12px/1.3 Inter, sans-serif;
  letter-spacing: .17em;
}

.login-card .login-system-title {
  margin: 0;
  color: #fff !important;
  background: linear-gradient(94deg, #ffffff 0%, #c8fbff 34%, #59e5ff 62%, #ffe47a 88%, #fff7c7 100%) !important;
  background-clip: text !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  font-size: 34px;
  line-height: 1.22;
  letter-spacing: .02em;
  filter: drop-shadow(0 0 8px rgba(74, 226, 255, .24));
  text-shadow: 0 2px 12px rgba(28, 126, 218, .18);
}

.login-card .rainbow-title {
  margin: 4px 0 0;
  color: #76ecff;
  font-size: 20px;
  line-height: 1.35;
  text-shadow: 0 0 18px rgba(67, 225, 255, .2);
}

.login-card .brand p {
  max-width: none;
  margin: 7px 0 0;
  color: #9fb7d1;
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
}

.login-seat-picker {
  position: relative;
  min-width: 0;
  margin: 2px 0 0;
  padding: 0;
  border: 0;
}

.login-seat-picker > legend,
.login-user-source {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.login-terminal-art {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9.45;
  border-radius: 22px;
  background: url('/runtime-images/login-terminal-base-keyed-v2.png?v=20260815-alpha-v2') center/100% 100% no-repeat;
  filter: none;
  image-rendering: auto;
  transform: translateZ(0);
}


.login-seat-art-grid {
  position: absolute;
  inset: 1.8% 1.7% 43.2%;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2.9%;
  pointer-events: none;
}

.login-seat-art {
  display: block;
  background-position: center;
  background-size: 100% 100%;
  background-repeat: no-repeat;
  image-rendering: auto;
}
.login-seat-art-xixi {
  background-image: url('/runtime-images/login-seat-xixi-keyed-v2.png?v=20260815-alpha-v2');
  filter: brightness(1.13) contrast(1.035) saturate(1.06);
}
.login-seat-art-cheng { background-image: url('/runtime-images/login-seat-cheng-keyed-v2.png?v=20260815-alpha-v2'); }
.login-seat-art-parent {
  background-image: url('/runtime-images/login-seat-parent-keyed-v2.png?v=20260815-alpha-v2');
  filter: brightness(1.28) contrast(1.04) saturate(1.17);
}

.login-seat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.login-seat-hit-grid {
  position: absolute;
  inset: 1.8% 1.7% 43.2%;
  gap: 2.9%;
  z-index: 2;
}

.login-seat {
  position: relative;
  display: block;
  min-width: 0;
  min-height: 0;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 24px;
  color: transparent;
  background: transparent;
  cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease, background .18s ease;
}


.login-seat:hover { transform: translateY(-2px); border-color: transparent; box-shadow: none; background: radial-gradient(ellipse at center, rgba(64, 223, 255, .08), transparent 72%); }
.login-seat:focus-visible { outline: 3px solid rgba(255, 215, 87, .9); outline-offset: 3px; }
.login-seat.is-selected {
  border-color: transparent;
  background: radial-gradient(ellipse at center, rgba(255, 234, 129, .08), transparent 74%);
  box-shadow: none;
}
.login-seat-parent { border-color: transparent; background: transparent; }
.login-seat-parent.is-selected { border-color: transparent; background: radial-gradient(ellipse at center, rgba(64, 209, 255, .07), transparent 74%); box-shadow: none; }
.login-seat small,
.login-seat-state { position: absolute; width: 1px; height: 1px; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; }

@property --seat-flow-angle {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

.login-seat-flow {
  --seat-flow-a: #39eaff;
  --seat-flow-b: #ff3e4f;
  position: absolute;
  inset: 1.2%;
  z-index: 7;
  display: block;
  padding: 3px;
  border-radius: 23px;
  opacity: 0;
  background: conic-gradient(
    from var(--seat-flow-angle),
    transparent 0deg 35deg,
    var(--seat-flow-a) 50deg 69deg,
    #ffffff 75deg 80deg,
    transparent 88deg 174deg,
    var(--seat-flow-b) 190deg 211deg,
    #fff3a2 217deg 222deg,
    transparent 230deg 360deg
  );
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  filter: drop-shadow(0 0 4px var(--seat-flow-a)) drop-shadow(0 0 8px var(--seat-flow-b));
  pointer-events: none;
}

.login-seat:nth-child(2) .login-seat-flow {
  --seat-flow-a: #ff4b38;
  --seat-flow-b: #ffd45e;
}

.login-seat-parent .login-seat-flow {
  --seat-flow-a: #38eaff;
  --seat-flow-b: #4d91ff;
}

.login-seat.is-selected .login-seat-flow {
  opacity: 1;
  animation: login-seat-flow-orbit 2.8s linear infinite;
}

@keyframes login-seat-flow-orbit {
  to { --seat-flow-angle: 360deg; }
}

@media (prefers-reduced-motion: reduce) {
  .login-seat.is-selected .login-seat-flow { animation: none; }
}

/* 状态字由网页实时生成，覆盖素材图里原先的固定状态。 */
.login-seat::after {
  content: "待选择";
  position: absolute;
  left: 0;
  right: 0;
  top: 85%;
  z-index: 5;
  display: grid;
  place-items: center;
  min-height: 9%;
  border-radius: 999px;
  color: #aac7df;
  background: transparent;
  box-shadow: none;
  font-size: clamp(8px, .72vw, 12px);
  line-height: 1;
  white-space: nowrap;
  text-shadow: none;
  pointer-events: none;
}
.login-seat.is-selected::after {
  content: "已锁定";
  color: #4ff1ff;
  background: transparent;
  box-shadow: none;
  text-shadow: 0 0 8px rgba(52, 224, 255, .52);
}
.login-seat:first-child::after { transform: translateX(5px); }
.login-seat:nth-child(2)::after { color: #d9c7ac; }
.login-seat:nth-child(2).is-selected::after {
  color: #ffd66b;
  text-shadow: 0 0 8px rgba(255, 184, 54, .55);
}
.login-seat-parent::after {
  content: "密码通道";
  left: 0;
  right: 0;
  color: #afc7df;
  box-shadow: none;
  transform: none;
}
.login-seat-parent.is-selected::after {
  content: "已选择";
  color: #69eaff;
}

/* 图片模型容易误写生僻字，姓名始终由真实网页文字覆盖显示。 */
.login-seat strong {
  position: absolute;
  left: 17%;
  right: 17%;
  top: 65%;
  z-index: 4;
  display: grid;
  place-items: center;
  min-height: 12%;
  border-radius: 0;
  color: #f4fbff;
  background: transparent;
  box-shadow: none;
  font-size: clamp(13px, 1.28vw, 22px);
  line-height: 1;
  white-space: nowrap;
  text-shadow: 0 0 9px rgba(62, 211, 255, .34);
  pointer-events: none;
}
.login-seat:nth-child(2) strong {
  color: #fff7e7;
  background: transparent;
  text-shadow: 0 0 10px rgba(255, 192, 74, .46);
}
.login-seat-parent strong {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 64%;
  width: auto;
  height: auto;
  min-height: 12%;
  margin: 0;
  overflow: visible;
  clip: auto;
  color: #f4fbff;
  font-size: clamp(13px, 1.28vw, 22px);
  text-shadow: 0 0 9px rgba(62, 211, 255, .38);
  transform: translateX(-5px);
}

/* 遮住素材内偏下的小号“指挥基地”，避免与网页大字重叠。 */
.login-seat-parent::before {
  content: "";
  position: absolute;
  left: 18%;
  right: 18%;
  top: 74%;
  z-index: 3;
  height: 12%;
  background: #02142f;
  box-shadow: 0 0 9px 7px #02142f;
  pointer-events: none;
}

.login-command-notice {
  position: absolute;
  left: 4%;
  right: 4%;
  top: 59%;
  min-height: 0;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  pointer-events: none;
}
.login-command-notice > * { display: none; }
.login-card.login-parent .login-command-notice { border: 0; background: transparent; }

.login-safe-channel-text {
  position: absolute;
  left: 20%;
  right: 20%;
  top: 71.1%;
  z-index: 4;
  color: #eaf8ff;
  font-size: clamp(12px, 1.02vw, 17px);
  font-weight: 700;
  letter-spacing: .08em;
  text-align: center;
  text-shadow: 0 0 8px rgba(63, 210, 255, .5);
  pointer-events: none;
}

.login-card > .parent-password-row {
  gap: 6px;
  margin-top: 12px;
  color: #dceefa;
  font-size: 13px;
}
.login-card > .parent-password-row input {
  min-height: 44px;
  padding: 9px 13px;
  border: 1px solid rgba(122, 181, 222, .5);
  border-radius: 12px;
  color: #f7fcff;
  background: rgba(2, 13, 36, .82);
  font-size: 15px;
}
.login-card > .parent-password-row input:focus { border-color: #55e5ff; box-shadow: 0 0 0 3px rgba(62, 220, 255, .13); outline: 0; }

.login-card .login-error {
  position: absolute;
  left: 16%;
  right: 16%;
  top: 71%;
  z-index: 5;
  min-height: 16px;
  margin: 0;
  color: #ff9dab;
  font-size: 12px;
  text-align: center;
}

.login-card > .login-board-button {
  position: absolute;
  left: 3%;
  right: 3%;
  top: 85%;
  z-index: 3;
  width: 94%;
  height: 11%;
  min-height: 0;
  margin: 0;
  border: 2px solid transparent;
  border-radius: 20px;
  color: transparent;
  background: transparent;
  box-shadow: none;
}
.login-card > .login-board-button:hover {
  transform: translateY(-2px) scale(1.012);
  border-color: transparent;
  background: radial-gradient(ellipse at center, rgba(241, 255, 255, .28), rgba(55, 223, 255, .13) 46%, transparent 76%);
  box-shadow: none;
  filter: brightness(1.24) saturate(1.2) drop-shadow(0 0 11px rgba(54, 220, 255, .9));
}
.login-card > .login-board-button:active {
  transform: translateY(0) scale(.995);
  filter: brightness(1.08);
}
.login-card > .login-board-button:focus-visible { outline: 0; border-color: transparent; box-shadow: none; }
.login-board-label {
  position: absolute;
  left: auto;
  right: 45%;
  width: max-content;
  top: 40%;
  display: grid;
  place-items: center;
  color: #062957;
  font-size: clamp(20px, 1.82vw, 31px);
  font-weight: 950;
  letter-spacing: .06em;
  line-height: 1;
  text-shadow: 0 1px rgba(255,255,255,.36), 0 0 10px rgba(36,218,255,.38);
  transform: translateY(-50%);
  pointer-events: none;
}
.login-board-emblem {
  position: absolute;
  inset: 5% 8.7%;
  z-index: 2;
  width: 82.6%;
  height: 90%;
  overflow: visible;
  pointer-events: none;
}
.login-board-flow-tail,
.login-board-flow-particle {
  fill: none;
  vector-effect: non-scaling-stroke;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.login-board-flow-tail {
  stroke-width: 2.2;
  opacity: .42;
  stroke-dasharray: 5 95;
  filter: blur(.25px) drop-shadow(0 0 3px currentColor);
}
.login-board-flow-particle {
  stroke-width: 4.2;
  stroke-dasharray: .65 99.35;
  filter: drop-shadow(0 0 3px #fff) drop-shadow(0 0 7px currentColor);
}
.login-board-flow-cyan {
  color: #65f4ff;
  stroke: currentColor;
  animation: login-board-particle-cruise 10.5s linear infinite;
}
.login-board-flow-gold {
  color: #ffe479;
  stroke: currentColor;
  stroke-dashoffset: -50;
  animation: login-board-particle-cruise 10.5s linear infinite;
}
.login-board-flow-tail-cyan {
  color: #49dfff;
  stroke: currentColor;
  animation: login-board-particle-cruise 10.5s linear infinite;
}
.login-board-flow-tail-gold {
  color: #ffd35a;
  stroke: currentColor;
  stroke-dashoffset: -50;
  animation: login-board-particle-cruise 10.5s linear infinite;
}
@keyframes login-board-particle-cruise {
  to { stroke-dashoffset: -100; }
}

@media (prefers-reduced-motion: reduce) {
  .login-board-flow-tail,
  .login-board-flow-particle { animation: none; }
}

.login-card.login-parent .login-terminal-art { filter: saturate(1.06) contrast(1.03) brightness(.7); }
.login-card.login-parent > .parent-password-row {
  position: absolute;
  left: 18%;
  right: 18%;
  top: 72%;
  z-index: 5;
  margin: 0;
  padding: 7px 10px;
  border: 1px solid rgba(103, 221, 255, .8);
  border-radius: 14px;
  background: rgba(3, 17, 48, .96);
  box-shadow: 0 12px 34px rgba(0, 5, 28, .6);
}
.login-card.login-parent > .parent-password-row input {
  min-height: 38px;
  padding-block: 6px;
}

.login-card.login-parent .login-command-notice { opacity: .2; }

/* 宬宬驾驶席的红金色是固定身份配色，不依赖选中状态。 */

@media (max-width: 760px) {
  .login-screen { background-position: 43% center; }
  .login-screen::after { background: linear-gradient(180deg, rgba(2, 8, 26, .03) 25%, rgba(2, 8, 26, .78) 61%, rgba(2, 8, 26, .97) 100%); }
  .login-card {
    top: auto;
    right: 12px;
    bottom: 12px;
    left: 12px;
    width: auto;
    max-height: calc(100vh - 24px);
    padding: 18px 16px 16px;
    border-radius: 24px;
    transform: none;
  }
  .login-terminal-status { margin-bottom: 12px; font-size: 8px; }
  .login-card .login-brand .brand-mark { width: 78px; height: 78px; margin: -2px auto 4px; border-radius: 18px; }
  .login-card .login-kicker { font-size: 10px; }
  .login-card .login-system-title { font-size: 27px; }
  .login-card .rainbow-title { font-size: 17px; }
  .login-card .brand p { font-size: 11px; }
  .login-seat-picker { margin-top: 14px; }
  .login-seat-hit-grid { gap: 2.9%; }
  .login-seat { border-radius: 14px; }
  .login-seat strong { font-size: 14px; }
  .login-seat small { font-size: 9px; }
  .login-seat-state { padding-inline: 6px; font-size: 8px; }
  .login-card > .login-board-button { min-height: 0; }
  .login-card.login-parent > .parent-password-row { left: 9%; right: 9%; top: 72%; }
}

@media (max-height: 680px) and (min-width: 761px) {
  .login-card { padding-top: 18px; padding-bottom: 16px; }
  .login-terminal-status { margin-bottom: 10px; }
  .login-card .login-brand .brand-mark { width: 86px; height: 86px; margin: -4px auto 3px; }
  .login-seat-picker { margin-top: 14px; }
  .login-seat { min-height: 0; }
}

@media (min-width: 761px) and (max-width: 1180px) {
  .login-card {
    right: 18px;
    width: min(690px, calc(100vw - 36px));
  }
  .login-seat { min-height: 0; }
}