/* 认证布局：桌面（>=960）左侧主视觉栏（tt-hero-backdrop + 插图组合 + 品牌 + 口号 + 卖点）+ 右侧表单区；手机收起主视觉栏。组件样式限定在 .tt-auth 内，避免与全局组件冲突 */
.tt-auth {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  min-height: 100vh;
  min-height: 100svh;
  background: var(--bg-page);
  color: var(--text-2);
  font-family: var(--font-sans);
}
.tt-auth [hidden] { display: none !important; }

/* ---------- 主视觉栏 ---------- */
.tt-auth-aside { display: none; }
@media (min-width: 960px) {
  .tt-auth { grid-template-columns: minmax(340px, 5fr) minmax(0, 7fr); }
  .tt-auth-aside {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 48px clamp(32px, 4vw, 64px);
    overflow: hidden;
  }
  .tt-auth-hero {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 440px;
    text-align: center;
  }
  .tt-auth-hero .tt-hero-art { margin-bottom: 24px; }
  /* 两团柔光整个落在左栏内部，不贴分界线（窄栏里被切开会在灰底边上留下一道接缝） */
  .tt-auth-aside.tt-hero-backdrop::before { top: -40px; right: 8%; }
  .tt-auth-aside.tt-hero-backdrop::after { right: auto; bottom: -20px; left: 8%; }
  .tt-auth-brand--compact { display: none !important; }
}

.tt-auth-brand { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; text-decoration: none; }
.tt-auth-mark { display: block; flex: none; border-radius: var(--radius-md); }
.tt-auth-name { font: var(--t-brand-small); color: var(--text-1); }
.tt-auth-brand--large { gap: 12px; }
.tt-auth-brand--large .tt-auth-name { font: var(--t-brand-large); letter-spacing: -0.01em; }
.tt-auth-slogan { margin: 8px 0 32px; font: var(--t-lead); color: var(--text-2); }
.tt-auth-points { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 0; padding: 0; list-style: none; }
.tt-auth-points li {
  display: flex;
  align-items: center;
  gap: 8px;
  height: var(--control-h-md);
  padding: 0 12px;
  border: 0;
  box-shadow: inset 0 0 0 1px var(--primary-soft);
  border-radius: var(--radius-md);
  background: var(--bg-card);
  font: var(--t-body-secondary);
  color: var(--text-2);
}
.tt-auth-point-icon { display: inline-flex; flex: none; color: var(--primary); font-size: var(--icon-18); }

/* ---------- 主区 ---------- */
.tt-auth-main { display: flex; flex-direction: column; min-width: 0; background: var(--bg-page); }
.tt-auth-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px var(--gutter) 0; }
.tt-auth-tools { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.tt-auth-home { display: inline-flex; align-items: center; min-height: 44px; font: var(--t-body); color: var(--text-3); text-decoration: none; }
.tt-auth-home:hover { color: var(--text-1); }
.tt-auth-body { display: flex; flex: 1; align-items: center; justify-content: center; padding: 24px var(--gutter) 48px; }

/* ---------- 面板与表单组件 ---------- */
.tt-auth .tt-auth-panel {
  width: 100%;
  max-width: 440px;
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  background: var(--bg-card);
  box-shadow: var(--shadow-e1);
}
@media (min-width: 520px) { .tt-auth .tt-auth-panel { padding: 36px 36px 32px; } }
/* 手机：表单贴顶、去掉卡片外框，弹出键盘时输入框不被顶走 */
@media (max-width: 519px) {
  /* 没有卡片时页面底色换成白：浅灰填充的输入框放在 #f5f5f3 上几乎看不见 */
  .tt-auth,
  .tt-auth-main { background: var(--bg-card); }
  .tt-auth-body { align-items: flex-start; padding-top: 16px; }
  .tt-auth .tt-auth-panel { padding: 0; background: transparent; box-shadow: none; }
}
/* 手机：安全区、触控尺寸（输入 44px / 提交 48px / 文字链接加高点击区） */
@media (max-width: 768px) {
  .tt-auth-top { padding: calc(8px + var(--safe-top)) calc(var(--gutter) + var(--safe-right)) 0 calc(var(--gutter) + var(--safe-left)); }
  .tt-auth-body { padding: 16px calc(var(--gutter) + var(--safe-right)) calc(32px + var(--safe-bottom)) calc(var(--gutter) + var(--safe-left)); }
  .tt-auth .tt-auth-title { font-size: 24px; line-height: 32px; }
  .tt-auth .tt-auth-lead { font-size: 15px; line-height: 24px; }
  .tt-auth .tt-auth-eye { width: 48px; height: 44px; }
  .tt-auth .tt-btn[type='submit'],
  .tt-auth .tt-auth-sent .tt-btn { height: 48px; font-size: 16px; }
  .tt-auth .tt-auth-link { display: inline-flex; align-items: center; min-height: 40px; font-size: 14px; }
  .tt-auth .tt-auth-links { margin-top: 8px; }
  .tt-auth .tt-auth-switch { font-size: 14px; }
}

.tt-auth .tt-auth-title { margin: 0 0 6px; font: var(--t-page-title); color: var(--text-1); }
.tt-auth .tt-auth-lead { margin: 0 0 24px; font: var(--t-body-secondary); text-wrap: balance; }
.tt-auth .tt-auth-fine { margin: 12px 0 0; text-align: center; font: var(--t-caption); color: var(--text-3); }
.tt-auth .tt-auth-hint { margin: 6px 0 0; font: var(--t-caption); color: var(--text-3); }
.tt-auth .tt-auth-hint--flow { margin: 0 0 16px; }

.tt-auth .tt-auth-field { margin-bottom: 16px; }
.tt-auth .tt-auth-label { display: block; margin-bottom: 6px; font: var(--t-body-strong); color: var(--text-1); }
.tt-auth .tt-auth-field.has-error .tt-input { box-shadow: inset 0 0 0 1px var(--danger); }
.tt-auth .tt-auth-error { min-height: 0; margin: 6px 0 0; font: var(--t-caption); color: var(--danger-text); }
.tt-auth .tt-auth-error:empty { display: none; }

.tt-auth .tt-auth-input-wrap { position: relative; display: block; }
.tt-auth .tt-auth-input-wrap .tt-input { padding-right: 46px; }
.tt-auth .tt-auth-eye {
  position: absolute;
  top: 0;
  right: 0;
  width: 46px;
  height: var(--input-h-lg);
  border: 0;
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
}
.tt-auth .tt-auth-eye:hover { color: var(--text-1); }
.tt-auth .tt-auth-eye svg { width: 16px; height: 16px; fill: currentColor; }
.tt-auth .tt-auth-eye .pw-hide { display: none; }
.tt-auth .tt-auth-eye.is-visible .pw-hide { display: inline; }
.tt-auth .tt-auth-eye.is-visible .pw-show { display: none; }

.tt-auth .tt-auth-email-group { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }

.tt-auth .tt-auth-link { padding: 0; border: 0; background: none; color: var(--primary-text); font: var(--t-body-strong); cursor: pointer; }
.tt-auth .tt-auth-link:hover { color: var(--primary-text-hover); text-decoration: underline; }
.tt-auth .tt-auth-links { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 16px; margin-top: 16px; }
.tt-auth .tt-auth-links--center { justify-content: center; }
.tt-auth .tt-auth-switch { margin: 24px 0 0; padding-top: 18px; border-top: 0; box-shadow: inset 0 var(--hairline) 0 var(--border); text-align: center; font: var(--t-body); color: var(--text-3); }

.tt-auth .tt-auth-verifying { display: flex; align-items: center; gap: 12px; padding: 24px 0; color: var(--text-2); }

/* 注册 / 找回密码：链接已发送 */
.tt-auth .tt-auth-sent-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 14px;
  border-radius: var(--radius-md);
  background: var(--primary-soft);
  color: var(--primary);
}
.tt-auth .tt-auth-sent-icon svg { width: 22px; height: 22px; fill: currentColor; }
.tt-auth .tt-auth-sent-text { margin: 0 0 8px; font: var(--t-body); color: var(--text-1); overflow-wrap: anywhere; }

/* 设置密码：链接失效 */
.tt-auth .tt-auth-expired-text { margin: 0 0 16px; font: var(--t-body); color: var(--danger-text); }