/*
 * 云端账号页共用样式（templates/accounts/_auth_base.html）。
 * 配色令牌与首页 ops_host/site/outboxedu 一致；系统字体，无外网依赖。
 * 主色/链接用更深蓝以满足 WCAG AA（白字+#0b6fa4 ≈ 5.49）。
 */

.auth-page {
  --red: #ff5a3c;
  --yel: #ffc800;
  --blue: #1cb0f6;
  --link: #0b6fa4;
  --grn: #58cc02;
  --ink: #3c3c3c;
  --muted: #5c5c5c;
  --line: #e5e5e5;
  --cream: #fff6e5;
  --card: #ffffff;
  --bg: #fffaf0;
  --error: #b42318;
  --error-bg: #fff1f0;
  --info-bg: #eef6ff;
  --info-line: #b9d4f2;
  --focus: #0b6fa4;
  --radius: 0.75rem;

  box-sizing: border-box;
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 48px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.auth-page *,
.auth-page *::before,
.auth-page *::after {
  box-sizing: border-box;
}

.auth-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin: 0;
  padding: 32px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 1px 2px rgb(60 60 60 / 6%), 0 10px 28px rgb(60 60 60 / 8%);
}

.auth-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin: 0 0 1.25rem;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  text-align: center;
}

.auth-brand__logo {
  display: block;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.auth-brand__name {
  line-height: 1.2;
}

/* 注册卡左上角「← 返回」；落点对齐 ops-shell__back 的轻量描边按钮 */
.auth-back {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  margin: 0;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: #f4f5f7;
  color: var(--muted);
  font-size: 0.8125rem;
  font-weight: 550;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1.4;
}

.auth-back:hover {
  color: var(--ink);
  border-color: #8b97a8;
  text-decoration: none;
  background: #eef0f3;
}

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

@media (prefers-color-scheme: dark) {
  .auth-back {
    background: #1e1e1e;
    color: var(--muted);
    border-color: var(--line);
  }

  .auth-back:hover {
    color: var(--ink);
    background: #2a2a2a;
    border-color: #555;
  }
}

.auth-card h1 {
  margin: 0 0 0.35rem;
  font-size: 1.4rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-align: center;
}

.auth-card h2 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 650;
}

.auth-card h3 {
  margin: 1rem 0 0.4rem;
  font-size: 1rem;
  font-weight: 600;
}

.auth-card .auth-subtitle,
.auth-card p.auth-subtitle {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.9375rem;
  font-weight: 400;
  text-align: center;
}

.auth-card p {
  margin: 0.5rem 0;
  line-height: 1.6;
}

.auth-card p.note,
.auth-card .auth-lead {
  color: var(--muted);
  line-height: 1.75;
}

.auth-card .auth-step {
  margin: 0.65rem 0 1rem;
}

.auth-card .auth-step__label {
  margin: 0 0 0.4rem;
  color: var(--ink);
  font-size: 0.9375rem;
  font-weight: 650;
  line-height: 1.5;
}

.auth-card .auth-step__desc {
  margin: 0;
  color: var(--muted);
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.75;
}

.auth-card .auth-footer,
.auth-card p.auth-footer {
  margin-top: 1.1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.9375rem;
}

.auth-card .auth-footer a + a::before,
.auth-card .auth-footer .auth-sep {
  margin: 0 0.35rem;
}

.auth-card nav.auth-segment,
.auth-segment {
  display: flex;
  margin: 0 0 1.1rem;
  padding: 0.25rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: #f4f5f7;
  gap: 0.15rem;
}

.auth-segment a {
  flex: 1;
  margin: 0;
  padding: 0.5rem 0.4rem;
  border-radius: 0.5rem;
  text-align: center;
  text-decoration: none;
  color: var(--ink);
  font-size: 0.9375rem;
  font-weight: 550;
}

.auth-segment a:hover {
  color: var(--link);
  text-decoration: none;
}

.auth-segment a[aria-current="page"] {
  background: var(--card);
  color: var(--link);
  font-weight: 700;
  box-shadow: 0 1px 2px rgb(60 60 60 / 10%);
  text-decoration: none;
}

.auth-card label,
.auth-card fieldset {
  display: block;
  margin: 0.85rem 0;
  font-size: 0.9375rem;
  font-weight: 550;
}

.auth-card input[type="text"],
.auth-card input[type="email"],
.auth-card input[type="password"],
.auth-card select {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  min-height: 44px;
  height: 44px;
  padding: 0.5rem 0.75rem;
  border: 1px solid #8b97a8;
  border-radius: 0.5rem;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  font-weight: 400;
}

.auth-card input[type="radio"],
.auth-card input[type="checkbox"] {
  width: auto;
  min-height: 0;
  height: auto;
  margin-right: 0.4rem;
  display: inline-block;
  vertical-align: middle;
}

.auth-card button,
.auth-card .auth-btn {
  display: block;
  width: 100%;
  margin-top: 0.85rem;
  margin-right: 0;
  min-height: 44px;
  height: 44px;
  padding: 0.5rem 0.9rem;
  border: 0;
  border-radius: 0.5rem;
  background: var(--link);
  color: #fff;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
  text-align: center;
}

.auth-card button:hover,
.auth-card .auth-btn:hover {
  filter: brightness(0.95);
}

.auth-card button[formaction],
.auth-card button.auth-btn--secondary {
  width: 100%;
  background: transparent;
  color: var(--link);
  border: 1px solid var(--link);
}

.auth-card button.auth-btn--primary,
.auth-card button[formaction].auth-btn--primary {
  background: var(--link);
  color: #fff;
  border: 0;
}

.auth-card button:disabled,
.auth-card button.auth-btn:disabled,
.auth-card .auth-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  filter: none;
}

.auth-card button:disabled:hover,
.auth-card button.auth-btn:disabled:hover,
.auth-card .auth-btn:disabled:hover {
  filter: none;
}

.auth-card a {
  color: var(--link);
  text-decoration: none;
}

.auth-card a:hover {
  text-decoration: underline;
  color: #085a86;
}

.form-error {
  color: #b42318;
  font-weight: 600;
}

.field-error {
  color: #b42318;
  font-size: 0.9rem;
  margin: 0.25rem 0 0;
}

.auth-card .form-error,
.auth-card p[role="alert"] {
  margin: 0.5rem 0;
  padding: 0.6rem 0.75rem;
  border: 1px solid #e6694e;
  border-radius: 0.5rem;
  background: var(--error-bg);
  color: var(--error);
  font-weight: 600;
  text-align: left;
}

.note {
  color: var(--muted);
}

.trial-banner,
.auth-card p[role="status"]:not(.form-error) {
  margin: 0.75rem 0;
  padding: 0.6rem 0.75rem;
  background: var(--info-bg);
  border: 1px solid var(--info-line);
  border-radius: 0.5rem;
}

.trial-banner {
  background: var(--info-bg);
  border: 1px solid var(--info-line);
  border-radius: 0.5rem;
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
  font-weight: 500;
  cursor: pointer;
}

.check input {
  margin-top: 0.2rem;
  margin-right: 0;
}

/* 同意页等仍用 pre；注册页规则改为 .rule 段落卡片（UX S-2） */
.auth-card pre {
  white-space: pre-wrap;
  background: #f7f8fa;
  padding: 0.6rem;
  border-radius: 0.4rem;
  border: 1px solid var(--line);
  overflow-x: auto;
  line-height: 1.5;
  max-height: 12rem;
  overflow: auto;
}

.rule {
  background: #f7f8fa;
  padding: 0.75rem 0.85rem;
  border-radius: 0.4rem;
  border: 1px solid var(--line);
  max-height: 14rem;
  overflow-y: auto;
  overflow-x: hidden;
  line-height: 1.65;
  letter-spacing: 0.01em;
  font-family: inherit;
  font-size: 0.9375rem;
}

.rule p {
  margin: 0 0 0.75em;
  white-space: pre-line;
}

.rule p:last-child {
  margin-bottom: 0;
}

.rule-tech {
  margin-top: 0.55rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.rule-tech summary {
  cursor: pointer;
}

.rule-tech code {
  font-size: 0.8125rem;
  word-break: break-all;
}

.auth-card table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.auth-card th,
.auth-card td {
  border: 1px solid var(--line);
  padding: 0.4rem 0.5rem;
  text-align: left;
}

.auth-card input[aria-invalid="true"],
.auth-card input:user-invalid,
.auth-card select[aria-invalid="true"],
.auth-card select:user-invalid {
  border-color: var(--error);
}

.auth-card input[aria-invalid="true"]:focus-visible,
.auth-card input:user-invalid:focus-visible,
.auth-card select[aria-invalid="true"]:focus-visible,
.auth-card select:user-invalid:focus-visible {
  outline: 2px solid var(--error);
  outline-offset: 2px;
}

.auth-card input:focus-visible,
.auth-card select:focus-visible,
.auth-card button:focus-visible,
.auth-card a:focus-visible,
.auth-card summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

@media (max-width: 480px) {
  .auth-page {
    padding: 48px 16px;
    align-items: flex-start;
  }

  .auth-card {
    padding: 20px;
    box-shadow: 0 1px 2px rgb(60 60 60 / 6%);
  }
}

@media (prefers-color-scheme: dark) {
  .auth-page {
    --bg: #1a1a1a;
    --card: #242424;
    --ink: #f0f0f0;
    --muted: #b0b0b0;
    --line: #3a3a3a;
    --cream: #2a2418;
    --error: #ffb4a8;
    --error-bg: #3a1a16;
    --info-bg: #1a2836;
    --info-line: #2a4a66;
    --link: #7eb8d9;
    --focus: #7eb8d9;
  }

  .auth-segment {
    background: #1e1e1e;
  }

  .auth-segment a[aria-current="page"] {
    background: #2e2e2e;
  }

  .auth-card input[type="text"],
  .auth-card input[type="email"],
  .auth-card input[type="password"],
  .auth-card select {
    background: #1e1e1e;
    border-color: #555;
    color: var(--ink);
  }

  .auth-card input[aria-invalid="true"],
  .auth-card input:user-invalid,
  .auth-card select[aria-invalid="true"],
  .auth-card select:user-invalid {
    border-color: var(--error);
  }

  .auth-card button,
  .auth-card .auth-btn {
    background: #0b6fa4;
    color: #fff;
  }

  .auth-card button[formaction],
  .auth-card button.auth-btn--secondary {
    background: transparent;
    color: var(--link);
    border-color: var(--link);
  }

  .auth-card button.auth-btn--primary,
  .auth-card button[formaction].auth-btn--primary {
    background: #0b6fa4;
    color: #fff;
    border: 0;
  }

  .auth-card button:disabled,
  .auth-card button.auth-btn:disabled,
  .auth-card .auth-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    filter: none;
  }

  .auth-card button:disabled:hover,
  .auth-card button.auth-btn:disabled:hover,
  .auth-card .auth-btn:disabled:hover {
    filter: none;
  }

  .auth-card a:hover {
    color: #a8d4ee;
  }

  .auth-card pre,
  .rule {
    background: #1e1e1e;
  }

  .trial-banner {
    background: var(--info-bg);
    border-color: var(--info-line);
  }
}

/* 密码显示/隐藏：框内右侧眼睛图标（JS 包 .password-field + .password-toggle） */
.password-field {
  position: relative;
  display: block;
  width: 100%;
}

.auth-card .password-field input[type="password"],
.auth-card .password-field input[type="text"] {
  width: 100%;
  padding-right: 2.5rem;
}

.auth-card button.password-toggle,
button.password-toggle {
  position: absolute;
  right: 0.35rem;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  min-width: 2rem;
  min-height: 2rem;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0.35rem;
  background: transparent;
  color: var(--link, #0b6fa4);
  font: inherit;
  font-size: 0;
  font-weight: 400;
  line-height: 0;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  filter: none;
}

.auth-card button.password-toggle svg,
button.password-toggle svg {
  display: block;
  width: 1.25rem;
  height: 1.25rem;
  pointer-events: none;
}

.auth-card button.password-toggle:hover,
button.password-toggle:hover {
  filter: none;
  text-decoration: none;
  background: transparent;
  opacity: 0.85;
}

.auth-card button.password-toggle:focus-visible,
button.password-toggle:focus-visible {
  outline: 2px solid var(--focus, #0b6fa4);
  outline-offset: 2px;
}

@media (prefers-color-scheme: dark) {
  .auth-card button.password-toggle,
  button.password-toggle {
    background: transparent;
    color: var(--link, #7eb8d9);
    border: 0;
  }
}

/* Submit busy state (auth-busy.js) */
.auth-card button[aria-busy="true"],
.auth-card [type="submit"][aria-busy="true"] {
  cursor: wait;
  opacity: 0.72;
}