/* ==========================================================================
   登录页 · 2026 视觉刷新
   ========================================================================== */

.auth-body {
  background: #f6f8fc;
}

.auth-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
}

/* --------------------------------------------------------------------------
   左侧品牌区
   -------------------------------------------------------------------------- */

.auth-brand {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  padding: 48px 56px 38px;
  color: #fff;
  background:
    radial-gradient(1100px 760px at 12% -10%, #1e40af 0%, transparent 58%),
    radial-gradient(900px 700px at 100% 100%, #172554 0%, transparent 55%),
    linear-gradient(155deg, #0b1430 0%, #0f1b3d 45%, #122a5c 100%);
}

.auth-glow {
  position: absolute;
  z-index: 0;
  border-radius: 50%;
  filter: blur(18px);
  pointer-events: none;
}

.auth-glow-a {
  width: 480px;
  height: 480px;
  top: -160px;
  right: -170px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.42), transparent 66%);
  animation: authFloatA 16s ease-in-out infinite alternate;
}

.auth-glow-b {
  width: 440px;
  height: 440px;
  bottom: -190px;
  left: -180px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.24), transparent 66%);
  animation: authFloatB 18s ease-in-out infinite alternate;
}

.auth-grid {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: 0.35;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 72%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 72%);
  pointer-events: none;
}

.auth-brand-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 620px;
}

.auth-brand-row {
  gap: 12px;
  padding: 0;
}

.auth-brand-row .brand-sub {
  color: #91a4d8;
}

.auth-hero {
  max-width: 560px;
  margin-top: clamp(44px, 7.5vh, 92px);
  animation: authFadeUp 0.7s 0.06s both;
}

.auth-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: #c7d2fe;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.03em;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.auth-eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.14);
}

.auth-hero h1 {
  margin: 18px 0 16px;
  color: #fff;
  font-size: clamp(32px, 3.15vw, 46px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.035em;
}

.auth-hero h1 span {
  color: #fbbf24;
}

@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  .auth-hero h1 span {
    color: transparent;
    background: linear-gradient(90deg, #fcd34d 0%, #f59e0b 62%, #fbbf24 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}

.auth-hero p {
  max-width: 500px;
  margin: 0;
  color: #b8c6ea;
  font-size: 14px;
  line-height: 1.8;
}

.auth-features {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  max-width: 560px;
  margin-top: 34px;
  animation: authFadeUp 0.7s 0.14s both;
}

.auth-feature {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 14px 15px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.055);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.auth-feature:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.085);
}

.auth-feature-icon {
  display: grid;
  flex: 0 0 34px;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(245, 158, 11, 0.22);
  border-radius: 10px;
  background: rgba(245, 158, 11, 0.14);
  color: #fbbf24;
}

.auth-feature-title {
  color: #f1f5ff;
  font-size: 13px;
  font-weight: 650;
  line-height: 1.3;
}

.auth-feature-text {
  margin-top: 3px;
  color: #93a4d4;
  font-size: 11.5px;
  line-height: 1.35;
}

.auth-brand-foot {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding-top: 38px;
  color: #7e92c6;
  font-size: 11.5px;
  letter-spacing: 0.03em;
  animation: authFadeUp 0.7s 0.22s both;
}

.auth-foot-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #5c709f;
}

/* --------------------------------------------------------------------------
   右侧登录区
   -------------------------------------------------------------------------- */

.auth-panel {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 48px 40px;
  background:
    radial-gradient(900px 620px at 92% 0%, #e7eefc 0%, transparent 60%),
    radial-gradient(760px 560px at 0% 100%, #fef3c7 0%, transparent 58%),
    #f7f9fd;
}

.auth-panel-glow {
  position: absolute;
  top: -140px;
  right: -100px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(29, 78, 216, 0.12), transparent 65%);
  filter: blur(12px);
  pointer-events: none;
}

.auth-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  padding: 38px 38px 28px;
  border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 26px;
  background: #fff;
  box-shadow:
    0 40px 90px -52px rgba(15, 23, 42, 0.55),
    0 2px 10px rgba(15, 23, 42, 0.04);
  animation: authCardIn 0.65s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.auth-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 38px;
  left: 38px;
  height: 3px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, #1e3a8a, #1d4ed8 55%, #f59e0b);
  opacity: 0.9;
}

.auth-mobile-brand {
  display: none;
}

.auth-card-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  border: 1px solid #dbe6fb;
  border-radius: 14px;
  background: linear-gradient(135deg, #eef3fe, #f8fafc);
  color: var(--primary);
  box-shadow: 0 8px 18px -12px rgba(30, 58, 138, 0.45);
}

.auth-card h2 {
  margin: 0 0 6px;
  color: var(--ink);
  font-size: 26px;
  font-weight: 750;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.auth-lead {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.55;
}

.auth-alert {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 0 0 18px;
  padding: 11px 13px;
  border: 1px solid #fecaca;
  border-radius: 11px;
  background: #fef2f2;
  color: #b91c1c;
  font-size: 12.5px;
  line-height: 1.5;
}

.auth-alert svg {
  flex: 0 0 auto;
  margin-top: 1px;
}

.auth-form .auth-field {
  margin-bottom: 16px;
}

.auth-field .field-label {
  display: block;
  margin-bottom: 7px;
  color: var(--ink-soft);
  font-size: 12.5px;
  font-weight: 650;
}

.auth-input {
  position: relative;
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f8fafc;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.auth-input:focus-within {
  border-color: var(--primary-600);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.11);
}

.auth-input .input {
  width: 100%;
  height: 46px;
  padding: 0 14px 0 44px;
  border: 0 !important;
  border-radius: 12px;
  background: transparent !important;
  box-shadow: none !important;
  color: var(--ink);
  font-size: 13.5px;
  outline: none;
}

.auth-input .input::placeholder {
  color: #9aa7bb;
}

.auth-input-icon {
  position: absolute;
  top: 50%;
  left: 14px;
  display: flex;
  color: #8a98ad;
  transform: translateY(-50%);
  pointer-events: none;
}

.auth-input-password .input {
  padding-right: 46px;
}

.auth-eye {
  position: absolute;
  top: 50%;
  right: 7px;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #8a98ad;
  cursor: pointer;
  transform: translateY(-50%);
  transition: background 0.16s ease, color 0.16s ease;
}

.auth-eye:hover {
  background: #eef2f7;
  color: var(--ink);
}

.auth-eye:focus-visible {
  outline: 2px solid rgba(29, 78, 216, 0.4);
  outline-offset: 1px;
}

.auth-eye.is-active {
  background: var(--primary-soft);
  color: var(--primary-600);
}

.auth-form .field-error {
  margin-top: 6px;
}

.auth-submit {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  overflow: hidden;
  width: 100%;
  height: 48px;
  margin-top: 8px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, #1e3a8a 0%, #1d4ed8 62%, #2563eb 100%);
  box-shadow: 0 16px 32px -16px rgba(29, 78, 216, 0.7);
  color: #fff;
  font-size: 14px;
  font-weight: 650;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, filter 0.16s ease;
}

.auth-submit::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, 0.22) 45%, transparent 65%);
  transform: translateX(-120%);
  transition: transform 0.55s ease;
}

.auth-submit:hover {
  filter: saturate(1.05);
  box-shadow: 0 20px 38px -16px rgba(29, 78, 216, 0.8);
  transform: translateY(-1px);
}

.auth-submit:hover::after {
  transform: translateX(120%);
}

.auth-submit:active {
  transform: translateY(0);
}

.auth-submit:focus-visible {
  outline: 3px solid rgba(29, 78, 216, 0.35);
  outline-offset: 2px;
}

.auth-submit svg {
  transition: transform 0.18s ease;
}

.auth-submit:hover svg {
  transform: translateX(2px);
}

.auth-hint {
  display: flex;
  gap: 8px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.65;
}

.auth-hint-icon {
  flex: 0 0 auto;
  margin-top: 1px;
  color: var(--muted-light);
}

.auth-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin-top: 15px;
  color: var(--muted-light);
  font-size: 10.5px;
  letter-spacing: 0.03em;
}

.auth-meta-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.12);
}

/* --------------------------------------------------------------------------
   动效
   -------------------------------------------------------------------------- */

@keyframes authCardIn {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes authFadeUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes authFloatA {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-18px, 20px, 0);
  }
}

@keyframes authFloatB {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(16px, -18px, 0);
  }
}

/* --------------------------------------------------------------------------
   响应式
   -------------------------------------------------------------------------- */

@media (max-width: 1120px) {
  .auth-brand {
    padding: 40px 40px 32px;
  }

  .auth-hero h1 {
    font-size: clamp(30px, 3.6vw, 40px);
  }
}

@media (max-height: 780px) and (min-width: 981px) {
  .auth-brand {
    padding-top: 30px;
    padding-bottom: 24px;
  }

  .auth-hero {
    margin-top: 32px;
  }

  .auth-hero h1 {
    margin: 14px 0 12px;
    font-size: 34px;
  }

  .auth-hero p {
    font-size: 13.5px;
    line-height: 1.7;
  }

  .auth-features {
    margin-top: 24px;
  }

  .auth-brand-foot {
    padding-top: 24px;
  }
}

@media (max-width: 980px) {
  .auth-page {
    grid-template-columns: 1fr;
  }

  .auth-brand {
    display: none;
  }

  .auth-panel {
    min-height: 100vh;
    padding: 32px 20px;
  }

  .auth-card {
    max-width: 440px;
    padding: 34px 28px 26px;
  }

  .auth-card::before {
    right: 28px;
    left: 28px;
  }

  .auth-mobile-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--line-soft);
  }

  .auth-mobile-brand .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 11px;
    font-size: 18px;
  }

  .auth-mobile-name {
    color: var(--ink);
    font-size: 15px;
    font-weight: 750;
    line-height: 1.2;
  }

  .auth-mobile-sub {
    margin-top: 3px;
    color: var(--muted);
    font-size: 10px;
    letter-spacing: 0.16em;
  }
}

@media (max-width: 480px) {
  .auth-panel {
    padding: 20px 14px;
  }

  .auth-card {
    padding: 28px 20px 22px;
    border-radius: 22px;
  }

  .auth-card::before {
    right: 20px;
    left: 20px;
  }

  .auth-card h2 {
    font-size: 23px;
  }

  .auth-card-icon {
    width: 42px;
    height: 42px;
    margin-bottom: 16px;
  }

  .auth-lead {
    margin-bottom: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .auth-card,
  .auth-hero,
  .auth-features,
  .auth-brand-foot,
  .auth-glow-a,
  .auth-glow-b {
    animation: none !important;
  }

  .auth-submit,
  .auth-submit::after,
  .auth-submit svg,
  .auth-feature {
    transition: none !important;
  }
}