/**
 * 管理登录页样式 — 现代科技感双栏自适应 + 翡翠玻璃拟态
 * 遵循 home.css 设计令牌，针对桌面与移动端提供顶级控制台质感
 */

/* 登录页：与 hx-auth-container 同宽、位于卡片上方的站点标识 */
.hx-auth-surface-brand {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  width: 100%;
  gap: 10px;
  padding: 0 2px;
  margin-bottom: -6px;
  text-decoration: none;
}

.hx-auth-surface-brand:focus-visible {
  outline: 2px solid var(--hx-brand);
  outline-offset: 4px;
  border-radius: 8px;
}

.hx-auth-surface-brand__img {
  display: block;
  height: 28px;
  max-height: 32px;
  max-width: min(180px, 50vw);
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

.hx-auth-surface-brand__name {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--hx-text-1);
  letter-spacing: -0.01em;
}

.hx-page-auth {
  --hx-auth-max-w: 920px;
  --hx-auth-panel-w: 420px;
  --hx-auth-pad: clamp(24px, 4vw, 36px);
  --hx-auth-field-h: 46px;
  --hx-auth-radius: 14px;
  --hx-auth-card-radius: 28px;
  min-height: 100vh;
  min-height: 100dvh;
}

/* ==========================================================================
   1. 背景修饰层（微网格与环境暗角）
   ========================================================================== */
.hx-scene__grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(rgba(6, 78, 59, 0.08) 1px, transparent 1px),
    radial-gradient(rgba(5, 150, 105, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: 0 0, 16px 16px;
  mask-image: radial-gradient(ellipse 80% 65% at 50% 50%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 65% at 50% 50%, #000 40%, transparent 100%);
  opacity: 0.85;
}

/* ==========================================================================
   2. 主舞台与双栏容器
   ========================================================================== */
.hx-page-auth .hx-auth-main {
  flex: 1 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
  padding: clamp(24px, 4.5vh, 48px) var(--hx-layout-gutter);
  box-sizing: border-box;
}

.hx-auth-container {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 20px;
  width: 100%;
  max-width: var(--hx-auth-max-w);
  margin: 0 auto;
}

/* 复合卡片外框 */
.hx-auth-composite {
  display: grid;
  grid-template-columns: 1fr minmax(340px, var(--hx-auth-panel-w));
  gap: 0;
  width: 100%;
  border-radius: var(--hx-auth-card-radius);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.72) 0%, rgba(255, 255, 255, 0.52) 100%);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.95) inset,
    0 2px 8px -2px rgba(6, 78, 59, 0.06),
    0 32px 64px -24px rgba(6, 78, 59, 0.28),
    0 48px 96px -32px rgba(15, 23, 42, 0.12);
  backdrop-filter: blur(28px) saturate(1.4);
  -webkit-backdrop-filter: blur(28px) saturate(1.4);
  overflow: hidden;
  position: relative;
  isolation: isolate;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

/* 复合卡片环境顶光 */
.hx-auth-composite::before {
  content: "";
  position: absolute;
  top: 0;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(52, 211, 153, 0.8), rgba(5, 150, 105, 0.8), transparent);
  pointer-events: none;
  z-index: 3;
}

/* 抖动动画，用于校验失败时的震颤提示 */
.hx-auth-composite.is-shaking {
  animation: hx-auth-shake 0.45s cubic-bezier(0.36, 0.07, 0.19, 0.97) both;
}

@keyframes hx-auth-shake {
  10%, 90% { transform: translate3d(-2px, 0, 0); }
  20%, 80% { transform: translate3d(4px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-5px, 0, 0); }
  40%, 60% { transform: translate3d(5px, 0, 0); }
}

/* ==========================================================================
   3. 左侧：品牌叙事与平台亮点 (Desktop)
   ========================================================================== */
.hx-auth-narrative {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--hx-auth-pad);
  position: relative;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.45) 0%, rgba(236, 253, 245, 0.25) 100%);
  border-right: 1px solid rgba(6, 78, 59, 0.07);
  overflow: hidden;
}

/* 内部发光柔斑 */
.hx-auth-narrative__glow {
  position: absolute;
  top: -80px;
  left: -60px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 211, 153, 0.3) 0%, transparent 70%);
  filter: blur(36px);
  pointer-events: none;
}

.hx-auth-narrative-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  position: relative;
  z-index: 1;
  padding: 4px 0 6px;
  margin-bottom: 4px;
}

.hx-auth-narrative-head__title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--hx-text-1);
}

.hx-auth-narrative-head__lead {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--hx-text-3);
  max-width: 28em;
}

/* 特性亮点列表 */
.hx-auth-features {
  list-style: none;
  margin: 14px 0 18px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  z-index: 1;
}

.hx-auth-feature-item {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 2px 6px -1px rgba(6, 78, 59, 0.03);
  transition: background 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
}

.hx-auth-feature-item:hover {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(5, 150, 105, 0.2);
  transform: translateX(3px);
}

.hx-auth-feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  color: var(--hx-brand);
  background: var(--hx-brand-subtle);
  border: 1px solid var(--hx-brand-border);
  flex-shrink: 0;
  box-shadow: 0 2px 4px rgba(5, 150, 105, 0.06);
}

.hx-auth-feature-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.hx-auth-feature-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--hx-text-1);
}

.hx-auth-feature-desc {
  font-size: 12px;
  line-height: 1.45;
  color: var(--hx-text-3);
  margin: 0;
}

/* 安全指标底栏 */
.hx-auth-security-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 18px;
  margin-top: 6px;
  border-top: 1px dashed rgba(6, 78, 59, 0.12);
  font-size: 11.5px;
  color: var(--hx-text-3);
  position: relative;
  z-index: 1;
}

.hx-auth-security-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hx-auth-security-item svg {
  color: var(--hx-brand);
}

/* ==========================================================================
   4. 右侧：登录核心面板 (Form Panel)
   ========================================================================== */
.hx-auth-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--hx-auth-pad);
  position: relative;
  background: rgba(255, 255, 255, 0.88);
  box-sizing: border-box;
}

/* 顶部微柔光发丝线 */
.hx-auth-card__glow {
  position: absolute;
  top: -90px;
  right: -50px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.22) 0%, transparent 70%);
  filter: blur(32px);
  pointer-events: none;
}

.hx-auth-head {
  text-align: left;
  margin-bottom: 22px;
}

/* 移动端顶栏（角标 Logo 已固定于容器外，此处不再重复） */
.hx-auth-head__mobile-brand {
  display: none !important;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 16px;
}

.hx-auth-head__mobile-img {
  display: block;
  max-width: 140px;
  max-height: 38px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(5, 150, 105, 0.1));
}

.hx-auth-head__mobile-ico {
  display: inline-flex;
  align-items: center;
  color: var(--hx-brand);
}

.hx-auth-head__mobile-title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--hx-text-1);
}

.hx-auth-head__meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 8px;
}

.hx-auth-head__title {
  margin: 0;
  font-size: 1.28rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--hx-text-1);
}

.hx-auth-head__mode-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  font-size: 11px;
  font-weight: 600;
  color: var(--hx-brand-active);
  background: var(--hx-brand-subtle);
  border: 1px solid var(--hx-brand-border);
  border-radius: var(--hx-radius-full);
}

.hx-auth-head__mode-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--hx-success);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
  animation: hx-auth-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.hx-auth-head__desc {
  margin: 0;
  font-size: 12.5px;
  color: var(--hx-text-3);
  line-height: 1.5;
  text-align: left;
}

/* ==========================================================================
   5. 提示信息 (Alerts)
   ========================================================================== */
.hx-auth-alerts {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hx-auth-alert {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 18px;
  padding: 10px 14px;
  border-radius: 11px;
  font-size: 12.5px;
  line-height: 1.5;
  animation: hx-auth-slide-down 0.22s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes hx-auth-slide-down {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hx-auth-alert__content {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.hx-auth-alert__ico {
  flex-shrink: 0;
}

.hx-auth-alert--err {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

.hx-auth-alert--err .hx-auth-alert__ico {
  color: #ef4444;
}

.hx-auth-alert--ok {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
}

.hx-auth-alert--ok .hx-auth-alert__ico {
  color: #10b981;
}

.hx-auth-alert__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border: none;
  background: transparent;
  color: inherit;
  opacity: 0.6;
  border-radius: 6px;
  cursor: pointer;
  padding: 0;
  transition: opacity 0.15s ease, background 0.15s ease;
  flex-shrink: 0;
}

.hx-auth-alert__close:hover {
  opacity: 1;
  background: rgba(0, 0, 0, 0.05);
}

/* ==========================================================================
   6. 账号密码表单与输入控件
   ========================================================================== */
.hx-auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hx-auth-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hx-auth-field__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hx-auth-field__label {
  font-size: 12px;
  font-weight: 600;
  color: var(--hx-text-2);
}

.hx-auth-control {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.hx-auth-control__ico {
  position: absolute;
  left: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--hx-text-muted);
  pointer-events: none;
  transition: color 0.18s ease, transform 0.18s ease;
  z-index: 2;
}

.hx-auth-control:focus-within .hx-auth-control__ico {
  color: var(--hx-brand);
  transform: scale(1.06);
}

.hx-page-auth .hx-auth-input {
  width: 100%;
  height: var(--hx-auth-field-h);
  padding: 0 42px 0 42px;
  font-size: 13.5px;
  font-family: inherit;
  color: var(--hx-text-1);
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(6, 78, 59, 0.14);
  border-radius: var(--hx-auth-radius);
  outline: none;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.03) inset;
  transition: border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.hx-page-auth .hx-auth-input::placeholder {
  color: var(--hx-text-muted);
  font-size: 13px;
}

.hx-page-auth .hx-auth-input:hover:not(:focus) {
  border-color: rgba(5, 150, 105, 0.32);
  background: #ffffff;
}

.hx-page-auth .hx-auth-input:focus {
  background: #ffffff;
  border-color: var(--hx-brand);
  box-shadow:
    0 0 0 3.5px var(--hx-brand-glow),
    0 1px 2px rgba(5, 150, 105, 0.1);
}

.hx-page-auth .hx-auth-input:-webkit-autofill {
  -webkit-text-fill-color: var(--hx-text-1);
  -webkit-box-shadow: 0 0 0 1000px #ffffff inset;
  transition: background-color 5000s ease-in-out 0s;
}

/* 控件操作区（清空按钮 + 密码可见性切换） */
.hx-auth-control__actions {
  position: absolute;
  right: 6px;
  display: flex;
  align-items: center;
  gap: 2px;
  z-index: 2;
}

.hx-auth-btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  border-radius: 8px;
  color: var(--hx-text-muted);
  cursor: pointer;
  padding: 0;
  transition: color 0.15s ease, background 0.15s ease, transform 0.1s ease;
}

.hx-auth-btn-icon:hover {
  color: var(--hx-brand);
  background: var(--hx-brand-subtle);
}

.hx-auth-btn-icon:active {
  transform: scale(0.92);
}

.hx-auth-clear-btn {
  display: none;
}

.hx-auth-clear-btn.is-visible {
  display: inline-flex;
}

/* 密码显隐按钮 */
.hx-auth-reveal.is-on {
  color: var(--hx-brand);
}

.hx-auth-reveal .hx-auth-reveal__off,
.hx-auth-reveal.is-on .hx-auth-reveal__on {
  display: none;
}

.hx-auth-reveal.is-on .hx-auth-reveal__off {
  display: block;
}

/* CapsLock 提示浮层 */
.hx-auth-caps {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 4px 0 0;
  padding: 4px 8px;
  background: #fffbeb;
  border: 1px solid #fef3c7;
  border-radius: 6px;
  font-size: 11.5px;
  font-weight: 500;
  color: #b45309;
  animation: hx-auth-fade-in 0.15s ease;
}

@keyframes hx-auth-fade-in {
  from { opacity: 0; transform: translateY(-2px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 表单辅助行：记住用户名 & 快捷说明 */
.hx-auth-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: -2px;
  font-size: 12px;
}

.hx-auth-remember {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--hx-text-2);
  cursor: pointer;
  user-select: none;
}

.hx-auth-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border: 1px solid rgba(6, 78, 59, 0.22);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  display: grid;
  place-content: center;
  margin: 0;
  transition: all 0.15s ease;
}

.hx-auth-checkbox::before {
  content: "";
  width: 8px;
  height: 5px;
  border-left: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
  transform: rotate(-45deg) scale(0);
  transition: transform 0.12s cubic-bezier(0.12, 0.4, 0.29, 1.46);
  margin-top: -1px;
}

.hx-auth-checkbox:checked {
  background: var(--hx-brand);
  border-color: var(--hx-brand);
  box-shadow: 0 1px 3px rgba(5, 150, 105, 0.3);
}

.hx-auth-checkbox:checked::before {
  transform: rotate(-45deg) scale(1);
}

.hx-auth-checkbox:focus-visible {
  outline: 2px solid var(--hx-border-focus);
  outline-offset: 2px;
}

.hx-auth-session-badge {
  font-size: 11px;
  color: var(--hx-text-muted);
}

/* ==========================================================================
   7. 提交主按钮
   ========================================================================== */
.hx-page-auth .hx-auth-submit {
  width: 100%;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  margin-top: 4px;
  padding: 0 18px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.015em;
  color: #ffffff !important;
  background: linear-gradient(145deg, #059669 0%, #10b981 100%) !important;
  border: 1px solid rgba(255, 255, 255, 0.25) !important;
  border-radius: var(--hx-auth-radius) !important;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.35) inset,
    0 10px 22px -8px rgba(5, 150, 105, 0.85);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 按钮微扫光动效 */
.hx-page-auth .hx-auth-submit::after {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
  pointer-events: none;
}

.hx-page-auth .hx-auth-submit:hover:not(:disabled)::after {
  left: 180%;
}

.hx-page-auth .hx-auth-submit:hover:not(:disabled) {
  background: linear-gradient(145deg, #047857 0%, #059669 100%) !important;
  transform: translateY(-1.5px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.4) inset,
    0 14px 26px -8px rgba(5, 150, 105, 0.95);
}

.hx-page-auth .hx-auth-submit:active:not(:disabled) {
  transform: translateY(0.5px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.2) inset,
    0 6px 14px -6px rgba(5, 150, 105, 0.85);
}

.hx-page-auth .hx-auth-submit:disabled {
  cursor: not-allowed;
  opacity: 0.85;
  transform: none;
}

.hx-auth-submit__ico {
  flex-shrink: 0;
  transition: transform 0.18s ease;
}

.hx-page-auth .hx-auth-submit:hover .hx-auth-submit__ico {
  transform: translateX(2px);
}

.hx-auth-submit__spinner {
  display: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.38);
  border-top-color: #ffffff;
  animation: hx-auth-spin 0.65s linear infinite;
  flex-shrink: 0;
}

.hx-auth-submit.is-loading .hx-auth-submit__spinner {
  display: block;
}

.hx-auth-submit.is-loading .hx-auth-submit__ico {
  display: none;
}

@keyframes hx-auth-spin {
  to { transform: rotate(360deg); }
}

/* 忘记密码与支持帮助 */
.hx-auth-help {
  margin: 10px 0 0;
  font-size: 12px;
  text-align: center;
  color: var(--hx-text-muted);
}

.hx-auth-help a {
  font-weight: 600;
  color: var(--hx-brand);
  text-decoration: none;
  transition: color 0.15s ease;
}

.hx-auth-help a:hover {
  color: var(--hx-brand-active);
  text-decoration: underline;
}

/* ==========================================================================
   8. IOA 单点登录模式
   ========================================================================== */
.hx-auth-oauth {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hx-auth-oauth__box {
  display: flex;
  gap: 13px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: 12px;
  background: var(--hx-brand-subtle);
  border: 1px solid var(--hx-brand-border);
}

.hx-auth-oauth__box-ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  color: var(--hx-brand);
  background: #ffffff;
  box-shadow: 0 2px 6px rgba(5, 150, 105, 0.1);
  flex-shrink: 0;
}

.hx-auth-oauth__box-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.hx-auth-oauth__box-title {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--hx-text-1);
}

.hx-auth-oauth__box-desc {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--hx-text-2);
}

.hx-auth-oauth__hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 0;
  font-size: 12px;
  color: var(--hx-brand-active);
  padding: 8px;
  border-radius: 8px;
  background: rgba(5, 150, 105, 0.06);
}

.hx-auth-oauth__hint-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--hx-brand);
  animation: hx-auth-pulse 1.2s ease-in-out infinite;
}

@keyframes hx-auth-pulse {
  0%, 100% { opacity: 0.35; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1.15); }
}

/* ==========================================================================
   9. 卡片底注与返回首页
   ========================================================================== */
.hx-auth-card__footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px dashed rgba(6, 78, 59, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 11.5px;
  color: var(--hx-text-muted);
}

.hx-auth-card__footer svg {
  color: var(--hx-brand);
  opacity: 0.85;
}

/* 卡片外页脚导航 */
.hx-auth-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0 4px;
  font-size: 12px;
}

.hx-auth-back {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px 7px 11px;
  font-weight: 600;
  color: var(--hx-brand-active);
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: var(--hx-radius-full);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 8px 18px -10px rgba(6, 78, 59, 0.35);
  text-decoration: none;
  transition: all 0.16s ease;
}

.hx-auth-back:hover {
  background: #ffffff;
  border-color: rgba(5, 150, 105, 0.3);
  transform: translateY(-1px);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 12px 22px -10px rgba(5, 150, 105, 0.5);
}

.hx-auth-back svg {
  transition: transform 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.hx-auth-back:hover svg {
  transform: translateX(-3px);
}

.hx-auth-meta__copy {
  margin: 0;
  color: var(--hx-text-muted);
  font-size: 12px;
}

/* ==========================================================================
   10. 响应式与移动端适配
   ========================================================================== */
@media (max-width: 900px) {
  .hx-page-auth {
    --hx-auth-max-w: 460px;
    --hx-auth-card-radius: 24px;
    --hx-auth-pad: 24px 22px;
  }

  .hx-auth-composite {
    grid-template-columns: 1fr;
  }

  .hx-auth-narrative {
    display: none;
  }

  .hx-auth-head {
    text-align: left;
    margin-bottom: 20px;
  }

  .hx-auth-head__meta {
    justify-content: flex-start;
  }

  .hx-auth-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.94) 0%, rgba(255, 255, 255, 0.82) 100%);
  }

  .hx-auth-meta {
    flex-direction: column;
    gap: 12px;
    align-items: center;
  }
}

@media (max-width: 480px) {
  .hx-page-auth {
    --hx-auth-pad: 22px 18px;
    --hx-auth-field-h: 44px;
  }

  .hx-auth-head__title {
    font-size: 1.15rem;
  }

  .hx-auth-options {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* 横屏矮屏优化 */
@media (max-height: 680px) and (min-width: 901px) {
  .hx-page-auth .hx-auth-main {
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .hx-auth-features {
    margin: 14px 0;
    gap: 8px;
  }

  .hx-auth-feature-item {
    padding: 6px 10px;
  }
}

/* 焦点与可访问性 */
.hx-page-auth [hidden] {
  display: none !important;
}

.hx-page-auth a:focus-visible,
.hx-page-auth button:focus-visible {
  outline: 2px solid var(--hx-border-focus);
  outline-offset: 2px;
}

.hx-page-auth .hx-auth-input:focus-visible {
  outline: none;
}

@media (prefers-reduced-motion: reduce) {
  .hx-auth-composite.is-shaking,
  .hx-auth-submit__spinner,
  .hx-auth-head__mode-dot,
  .hx-auth-oauth__hint-dot {
    animation: none !important;
  }

  .hx-page-auth * {
    transition-duration: 0.01ms !important;
  }
}