/* =============================================================
   五岔 · 云匣子 · 登录页
   与主应用同一套「云感轻快 Soft Pop」：
   浅底 #f6f7fb · 靛蓝→紫→粉渐变 · 大圆角 · 柔阴影 · 柔光晕染
   布局参考 GitHub 玻璃拟态登录：左品牌故事 + 右登录卡
   ============================================================= */

.lg-body {
  margin: 0;
  min-height: 100dvh;
  height: 100dvh;
  overflow: hidden;
  font-family: var(--font-sans, -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif);
  color: var(--text-1, #1e2230);
  background: var(--bg, #f6f7fb);
  -webkit-font-smoothing: antialiased;
}

/* ---------- 柔光背景（与主应用 body 同源） ---------- */
.lg-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.lg-mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(1100px 700px at 8% -10%, rgba(91, 108, 255, 0.14), transparent 62%),
    radial-gradient(900px 620px at 100% 0%, rgba(236, 72, 153, 0.1), transparent 58%),
    radial-gradient(1000px 800px at 55% 120%, rgba(139, 92, 246, 0.12), transparent 62%);
}

.lg-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(48px);
  opacity: 0.55;
  animation: lg-float 16s ease-in-out infinite;
}

.lg-blob-a {
  width: 420px;
  height: 420px;
  left: -6%;
  top: -8%;
  background: radial-gradient(circle, rgba(91, 108, 255, 0.45), transparent 70%);
}

.lg-blob-b {
  width: 480px;
  height: 480px;
  right: -8%;
  top: 8%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.4), transparent 70%);
  animation-delay: -5s;
  animation-duration: 20s;
}

.lg-blob-c {
  width: 380px;
  height: 380px;
  left: 28%;
  bottom: -12%;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.28), transparent 70%);
  animation-delay: -9s;
}

.lg-blob-d {
  width: 260px;
  height: 260px;
  right: 22%;
  bottom: 18%;
  background: radial-gradient(circle, rgba(91, 108, 255, 0.22), transparent 70%);
  animation-delay: -3s;
  opacity: 0.45;
}

.lg-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(91, 108, 255, 0.12) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse 70% 65% at 30% 40%, #000 20%, transparent 75%);
  opacity: 0.7;
}

.lg-soft {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 75% 65% at 50% 40%, transparent 35%, rgba(246, 247, 251, 0.35) 100%);
}

@keyframes lg-float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  35% {
    transform: translate(18px, -14px) scale(1.04);
  }
  70% {
    transform: translate(-12px, 10px) scale(0.97);
  }
}

/* ---------- 布局 ---------- */
.lg-main {
  position: relative;
  z-index: 1;
  height: calc(100dvh - 42px);
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 32px 8px;
  box-sizing: border-box;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}

.lg-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 36px;
  /* 2026-10-23 修复：fill 由 both 改 backwards（both 会把最终帧永久钉住，
     transform 被动画值占据后 hover/FLIP 位移全部失效；与 base.css 的统一约定一致）。
     动画本身（lg-in 入场）保留。本文件 6 处入场动画同批修改。 */
  animation: lg-in 0.7s var(--ease-soft, ease) backwards;
}

.lg-logo {
  width: 42px;
  height: 42px;
  border-radius: var(--r-m, 14px);
  display: grid;
  place-items: center;
  background: transparent;
  overflow: hidden;
  box-shadow: 0 8px 22px rgba(12, 14, 20, 0.18);
}

.lg-logo img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: inherit;
}

.lg-brand-name {
  font-size: 17px;
  font-weight: 650;
  letter-spacing: 0.02em;
  color: var(--text-1, #1e2230);
}

/* 左栏舞台：叠层卡片 + 胶囊标签 */
.lg-story {
  min-width: 0;
}

.lg-stage {
  position: relative;
  height: 220px;
  margin: 0 0 28px;
  animation: lg-in 0.75s 0.08s var(--ease-soft, ease) backwards; /* 2026-10-23 修复：both→backwards */
}

.lg-plate {
  position: absolute;
  left: 8%;
  right: 12%;
  height: 72px;
  border-radius: var(--r-l, 18px);
  background: var(--surface, #fff);
  box-shadow: var(--shadow-m, 0 4px 14px rgba(43, 51, 88, 0.08), 0 16px 40px -16px rgba(43, 51, 88, 0.16));
  border: 1px solid var(--line, rgba(30, 34, 48, 0.06));
}

.lg-plate-1 {
  top: 18px;
  transform: rotate(-3deg);
  opacity: 0.75;
}

.lg-plate-2 {
  top: 62px;
  left: 12%;
  right: 8%;
  transform: rotate(2deg);
  background: linear-gradient(135deg, rgba(91, 108, 255, 0.1), rgba(236, 72, 153, 0.08));
  border: 1px solid rgba(91, 108, 255, 0.12);
  opacity: 0.9;
}

.lg-plate-3 {
  top: 110px;
  left: 4%;
  right: 16%;
  transform: rotate(-1deg);
  background: var(--surface, #fff);
  box-shadow: var(--shadow-l, 0 8px 24px rgba(43, 51, 88, 0.1), 0 28px 64px -24px rgba(43, 51, 88, 0.22));
}

.lg-bubble {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--r-full, 999px);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-s, 0 2px 8px rgba(43, 51, 88, 0.06));
  font-size: 12.5px;
  font-weight: 550;
  color: var(--text-2, #4a5165);
  border: 1px solid var(--line-soft, rgba(30, 34, 48, 0.04));
  backdrop-filter: blur(12px);
  animation: lg-bob 5s ease-in-out infinite;
}

.lg-bubble-1 {
  top: 28px;
  right: 4%;
  background: var(--grad-pill, linear-gradient(135deg, rgba(91, 108, 255, 0.16), rgba(236, 72, 153, 0.1)));
  color: var(--brand-ink, #4356e8);
  border: 0;
}

.lg-bubble-2 {
  top: 96px;
  left: 0;
  animation-delay: -1.5s;
}

.lg-bubble-3 {
  top: 160px;
  right: 10%;
  animation-delay: -3s;
}

.lg-bubble-bar {
  width: 28px;
  height: 6px;
  border-radius: 999px;
  background: var(--grad-brand, linear-gradient(90deg, #5b6cff, #ec4899));
}

.lg-dot-ok {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ok, #1fb866);
  box-shadow: 0 0 0 3px var(--ok-soft, rgba(31, 184, 102, 0.12));
}

@keyframes lg-bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

.lg-title {
  margin: 0 0 14px;
  font-size: clamp(34px, 4.6vw, 48px);
  line-height: 1.18;
  font-weight: 750;
  letter-spacing: -0.03em;
  color: var(--text-1, #1e2230);
  animation: lg-in 0.8s 0.12s var(--ease-soft, ease) backwards; /* 2026-10-23 修复：both→backwards */
}

.lg-title-grad {
  display: inline-block;
  background: var(--grad-brand, linear-gradient(135deg, #5b6cff, #8b5cf6, #ec4899));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lg-sub {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-2, #4a5165);
  max-width: 420px;
  animation: lg-in 0.8s 0.18s var(--ease-soft, ease) backwards; /* 2026-10-23 修复：both→backwards */
}

.lg-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  animation: lg-in 0.8s 0.24s var(--ease-soft, ease) backwards; /* 2026-10-23 修复：both→backwards */
}

.lg-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text-2, #4a5165);
}

.lg-check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--grad-brand-flat, linear-gradient(135deg, #5b6cff, #8b5cf6));
  box-shadow: 0 2px 8px rgba(91, 108, 255, 0.3);
  position: relative;
}

.lg-check::after {
  content: '';
  position: absolute;
  left: 6px;
  top: 4px;
  width: 4px;
  height: 7px;
  border: solid #fff;
  border-width: 0 1.8px 1.8px 0;
  transform: rotate(45deg);
}

/* ---------- 登录卡 ---------- */
.lg-side {
  display: flex;
  justify-content: center;
  animation: lg-in 0.85s 0.15s var(--ease-soft, ease) backwards; /* 2026-10-23 修复：both→backwards */
}

.lg-card {
  position: relative;
  width: 100%;
  max-width: 400px;
  padding: 36px 32px 28px;
  border-radius: var(--r-xl, 22px);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow:
    var(--shadow-xl, 0 12px 32px rgba(43, 51, 88, 0.14), 0 40px 88px -30px rgba(43, 51, 88, 0.3)),
    inset 0 1px 0 rgba(255, 255, 255, 0.85);
  /* 2026-10-23 修复：删除 .lg-card 的 backdrop-filter（blur 20px 压在 4 个 16-20s
     无限漂移光斑上 = 每帧整卡重绘，移动端掉帧明显）。底色已是 .82 近不透明，
     视觉几乎不变；漂移动画一个没动（.lg-bubble 的 blur 体量小，保留）。 */
  overflow: hidden;
}

.lg-card-deco {
  position: absolute;
  top: -40%;
  right: -20%;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91, 108, 255, 0.18), transparent 70%);
  pointer-events: none;
}

.lg-card-head {
  margin-bottom: 26px;
  position: relative;
}

.lg-card-badge {
  width: 48px;
  height: 48px;
  border-radius: var(--r-m, 14px);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  background: transparent;
  overflow: hidden;
  box-shadow: 0 8px 22px rgba(12, 14, 20, 0.18);
}

.lg-card-badge img {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: inherit;
}

.lg-card-title {
  margin: 0 0 6px;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-1, #1e2230);
}

.lg-card-sub {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-3, #767d92);
}

.lg-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.lg-field {
  display: block;
}

/* 表单上下两栏（用户名 / 密码）之间要留出呼吸感：贴太近分不清组 */
.lg-field + .lg-field {
  margin-top: 14px;
}

.lg-label {
  display: block;
  margin-bottom: 8px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-2, #4a5165);
}

.lg-input {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 50px;
  padding: 0 14px;
  border-radius: var(--r-m, 14px);
  background: var(--surface-2, #f7f8fc);
  border: 1.5px solid transparent;
  transition:
    border-color var(--dur-2, 0.19s) var(--ease, ease),
    box-shadow var(--dur-2, 0.19s) var(--ease, ease),
    background var(--dur-2, 0.19s) var(--ease, ease);
}

.lg-input:focus-within {
  background: var(--surface, #fff);
  border-color: rgba(91, 108, 255, 0.45);
  box-shadow: 0 0 0 4px rgba(91, 108, 255, 0.12);
}

.lg-in-icon {
  width: 18px;
  height: 18px;
  color: var(--text-4, #9aa1b3);
  flex-shrink: 0;
  transition: color var(--dur-2, 0.19s) var(--ease, ease);
}

.lg-input:focus-within .lg-in-icon {
  color: var(--brand-1, #5b6cff);
}

.lg-input input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text-1, #1e2230);
  font-size: 15px;
  font-family: inherit;
}

.lg-input input::placeholder {
  color: var(--text-4, #9aa1b3);
}

.lg-eye {
  border: 0;
  background: transparent;
  padding: 4px;
  cursor: pointer;
  color: var(--text-4, #9aa1b3);
  display: grid;
  place-items: center;
  border-radius: 8px;
  transition: color var(--dur-1, 0.13s) var(--ease, ease);
}

.lg-eye:hover {
  color: var(--brand-1, #5b6cff);
}

.lg-eye svg {
  width: 18px;
  height: 18px;
}

.lg-eye .lg-eye-off {
  display: none;
}

.lg-eye.is-on .lg-eye-on {
  display: none;
}

.lg-eye.is-on .lg-eye-off {
  display: block;
}

.lg-err {
  min-height: 22px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--danger, #f43f5e);
  background: var(--danger-soft, rgba(244, 63, 94, 0.1));
  border-radius: var(--r-s, 10px);
  padding: 0 10px;
  display: flex;
  align-items: center;
  opacity: 0;
  transform: translateY(-4px);
  transition:
    opacity var(--dur-2, 0.19s) var(--ease, ease),
    transform var(--dur-2, 0.19s) var(--ease, ease),
    padding var(--dur-2, 0.19s) var(--ease, ease);
}

.lg-err.is-on {
  opacity: 1;
  transform: translateY(0);
  padding: 8px 10px;
}

.lg-btn {
  position: relative;
  overflow: hidden;
  width: 100%;
  height: 50px;
  border: 0;
  border-radius: var(--r-m, 14px);
  cursor: pointer;
  font-size: 15px;
  font-weight: 650;
  font-family: inherit;
  letter-spacing: 0.12em;
  color: #fff;
  background: var(--grad-brand, linear-gradient(135deg, #5b6cff, #8b5cf6, #ec4899));
  background-size: 160% 100%;
  box-shadow: var(--brand-glow, 0 6px 20px rgba(91, 108, 255, 0.35));
  transition:
    transform var(--dur-2, 0.19s) var(--ease, ease),
    box-shadow var(--dur-2, 0.19s) var(--ease, ease),
    background-position var(--dur-4, 0.4s) var(--ease, ease);
}

.lg-btn:hover:not(:disabled) {
  background-position: 100% 0;
  transform: translateY(-1px);
  box-shadow: 0 10px 28px rgba(91, 108, 255, 0.4);
}

.lg-btn:active:not(:disabled) {
  transform: translateY(0) scale(0.98);
}

.lg-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.lg-btn-text {
  position: relative;
  z-index: 1;
}

/* 已登录：一键进入 */
.lg-resume {
  display: none;
  flex-direction: column;
  gap: 14px;
}

.lg-resume.is-on {
  display: flex;
}

.lg-resume-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 14px;
  border-radius: var(--r-m, 14px);
  background: var(--grad-pill, linear-gradient(135deg, rgba(91, 108, 255, 0.12), rgba(236, 72, 153, 0.08)));
}

.lg-resume-av {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--grad-brand, linear-gradient(135deg, #5b6cff, #8b5cf6));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 18px;
  box-shadow: var(--shadow-accent, 0 6px 18px rgba(91, 108, 255, 0.25));
}

.lg-resume-txt {
  min-width: 0;
  flex: 1;
}

.lg-resume-hi {
  font-size: 12px;
  color: var(--text-3, #767d92);
}

.lg-resume-name {
  font-size: 15px;
  font-weight: 650;
  color: var(--text-1, #1e2230);
}

.lg-link {
  border: 0;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
  font-size: 12.5px;
  color: var(--text-3, #767d92);
  text-decoration: underline;
  text-underline-offset: 3px;
  padding: 4px;
}

.lg-link:hover {
  color: var(--brand-1, #5b6cff);
}

#lg-form-fields.is-hidden {
  display: none;
}

/* ---------- 新设备验证（2026-10-16）：与登录表单同套视觉 ---------- */
.lg-verify {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.lg-verify-title {
  font-size: 19px;
  font-weight: 750;
  color: var(--text-1, #1e2230);
}

.lg-verify-desc {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--text-3, #767d92);
}

.lg-btn-shine {
  position: absolute;
  top: 0;
  left: -80%;
  width: 45%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: skewX(-22deg);
  animation: lg-shine 3s ease-in-out infinite;
}

@keyframes lg-shine {
  /* 2026-10-23 修复：原来动画动的是 left（违反"动画只动 transform/opacity"红线）。
     改为 transform 位移，视觉一致：left 从 -80% 扫到 130% = 走 210% 按钮宽，
     光带自身宽 = 45% 按钮宽，所以 translateX(466.67%)（= 210/45）终点完全相同。 */
  0%,
  50% {
    transform: translateX(0) skewX(-22deg);
  }
  100% {
    transform: translateX(466.67%) skewX(-22deg);
  }
}

.lg-card-foot {
  margin: 18px 0 0;
  text-align: center;
  font-size: 12px;
  color: var(--text-4, #9aa1b3);
  position: relative;
}

.lg-foot {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 16px 18px;
  font-size: 12px;
  color: var(--text-4, #9aa1b3);
}

.lg-foot a {
  color: var(--brand-1, #5b6cff);
  text-decoration: none;
}

.lg-foot a:hover {
  text-decoration: underline;
}

@keyframes lg-in {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.lg-input.is-error {
  border-color: rgba(244, 63, 94, 0.45);
  background: rgba(244, 63, 94, 0.04);
  box-shadow: 0 0 0 4px rgba(244, 63, 94, 0.1);
}

/* ---------- 窄屏 ---------- */
@media (max-width: 900px) {
  .lg-body {
    height: auto;
    min-height: 100dvh;
    overflow: auto;
  }

  .lg-main {
    height: auto;
    min-height: calc(100dvh - 42px);
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px 18px 8px;
  }

  .lg-stage {
    display: none;
  }

  .lg-brand {
    margin-bottom: 12px;
    justify-content: center;
  }

  .lg-story {
    text-align: center;
  }

  .lg-sub {
    margin-left: auto;
    margin-right: auto;
  }

  .lg-list {
    align-items: center;
  }

  .lg-list li {
    justify-content: center;
  }

  .lg-card {
    max-width: 420px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lg-blob,
  .lg-bubble,
  .lg-btn-shine {
    animation: none;
  }
}