/**
 * Guidebook Portal — 样式遵循仓库根目录 DESIGN.md（Figma 灵感设计系统）
 * 说明：网页无法使用专有 figmaSans，此处以 Inter Variable + JetBrains Mono 近似实现字重与气质
 */

/* ---------- CSS 变量（对齐 DESIGN.md 色板与间距） ---------- */
:root {
  /* 主色：界面层仅黑白 */
  --gb-color-black: #000000;
  --gb-color-white: #ffffff;
  --gb-glass-dark: rgba(0, 0, 0, 0.08);
  --gb-glass-light: rgba(255, 255, 255, 0.16);

  /* 间距刻度（8px 基准） */
  --gb-space-1: 4px;
  --gb-space-2: 8px;
  --gb-space-3: 12px;
  --gb-space-4: 16px;
  --gb-space-5: 24px;
  --gb-space-6: 32px;
  --gb-space-7: 40px;
  --gb-space-8: 48px;
  --gb-radius-card: 8px;
  --gb-radius-pill: 50px;

  /* 顶栏 / Hero / 双栏正文 / 页脚 共用同一最大宽度，保证上下对齐 */
  --gb-shell-max: min(1120px, 92vw);
  /* 兼容旧类名：与 shell 一致 */
  --gb-max-width: var(--gb-shell-max);
}

/* 全局排版：负字距 + 字偶距（kern） */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  font-family: "Inter", "Inter var", system-ui, -apple-system, "SF Pro Display",
    "Helvetica Neue", helvetica, sans-serif;
  font-feature-settings: "kern" 1;
  font-variation-settings: "slnt" 0;
  color: var(--gb-color-black);
  background: var(--gb-color-white);
  line-height: 1.45;
  letter-spacing: -0.14px;
}

/* 可聚焦元素：虚线焦点环（DESIGN.md 签名） */
a:focus-visible,
button:focus-visible,
[role="tab"]:focus-visible {
  outline: 2px dashed var(--gb-color-black);
  outline-offset: 3px;
}

/* ---------- 顶栏导航 ---------- */
.gb-site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--gb-color-white);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

/* 全站横向「壳」：与 Hero、portal、footer 同宽 */
.gb-shell {
  width: 100%;
  max-width: var(--gb-shell-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--gb-space-4);
  padding-right: var(--gb-space-4);
}

.gb-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gb-space-4);
  padding-top: var(--gb-space-3);
  padding-bottom: var(--gb-space-3);
}

.gb-logo {
  font-weight: 540;
  font-size: 1rem;
  letter-spacing: -0.14px;
  text-decoration: none;
  color: var(--gb-color-black);
}

/* 顶栏：与主站一致的脑图小标 + 字标 */
.gb-logo-with-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.gb-logo-img {
  display: block;
  border-radius: 50%;
  object-fit: cover;
}

.gb-logo:hover {
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.gb-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--gb-space-2) var(--gb-space-4);
}

/* 精简顶栏：右对齐文案链接 + 黑底白字 Log in */
.gb-nav--minimal {
  flex-wrap: wrap;
  gap: var(--gb-space-2) var(--gb-space-3);
  justify-content: flex-end;
}

.gb-nav-text {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.14px;
  color: var(--gb-color-black);
  text-decoration: none;
}

.gb-nav-text:hover {
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

/* 顶栏内小号药丸按钮 */
.gb-btn-pill--compact {
  padding: 6px 16px 8px;
  font-size: 0.875rem;
  font-weight: 500;
}

.gb-nav a {
  font-size: 1rem;
  font-weight: 340;
  letter-spacing: -0.14px;
  color: var(--gb-color-black);
  text-decoration: none;
}

.gb-nav a:hover {
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

/* 避免 .gb-nav a 覆盖药丸按钮：其 color 特异度 (0,1,1) 会压过单独的 .gb-btn-pill--black */
.gb-nav a.gb-btn-pill {
  font-weight: 500;
  text-decoration: none;
}

/* 顶栏黑底按钮必须显式白字，否则继承 .gb-nav a 的黑字 */
.gb-nav a.gb-btn-pill--black {
  color: var(--gb-color-white);
}

.gb-nav a.gb-btn-pill--black:hover {
  color: var(--gb-color-white);
}

/* 顶栏线框药丸：白底黑框（与表单次要按钮一致） */
.gb-nav a.gb-btn-pill--outline {
  color: var(--gb-color-black);
  text-decoration: none;
}

.gb-nav a.gb-btn-pill--outline:hover {
  color: var(--gb-color-black);
}

.gb-nav a.gb-btn-pill:hover {
  text-decoration: none;
  opacity: 0.9;
}

/* 已登录：必须压过 .gb-btn-pill 的 display，否则 Log in 仍可见 */
#gb-nav-login.gb-nav-login--signed-in,
#gb-nav-login[hidden] {
  display: none !important;
}

/* 黑色实心药丸按钮 */
.gb-btn-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px 10px;
  border-radius: var(--gb-radius-pill);
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 380;
  letter-spacing: -0.14px;
  text-decoration: none;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.gb-btn-pill:active {
  transform: scale(0.98);
}

.gb-btn-pill--black {
  background: var(--gb-color-black);
  color: var(--gb-color-white);
}

.gb-btn-pill--white {
  background: var(--gb-color-white);
  color: var(--gb-color-black);
}

.gb-btn-pill--glass-dark {
  background: var(--gb-glass-dark);
  color: var(--gb-color-black);
}

/* 白底 Hero 上的线框次要按钮 */
.gb-btn-pill--outline {
  background: transparent;
  color: var(--gb-color-black);
  border: 1px solid var(--gb-color-black);
  box-shadow: none;
}

.gb-btn-pill--outline:hover {
  background: rgba(0, 0, 0, 0.04);
}

/* ---------- Hero：白底 + 双栏（右侧实验室首页人体示意图） ---------- */
/* 仅上下留白；左右由 .gb-shell 与顶栏/正文一致 */
.gb-hero {
  background: var(--gb-color-white);
  color: var(--gb-color-black);
  padding: clamp(40px, 8vw, 88px) 0 clamp(48px, 7vw, 72px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.gb-hero-inner.gb-shell {
  display: grid;
  gap: var(--gb-space-6) var(--gb-space-8);
  grid-template-columns: 1fr;
  align-items: center;
  padding-top: 0;
  padding-bottom: 0;
}

@media (min-width: 900px) {
  .gb-hero-inner.gb-shell {
    grid-template-columns: 1fr min(44%, min(420px, 38vw));
  }
}

.gb-hero-copy {
  min-width: 0;
}

.gb-hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}

/* 与首页 human-fig-section 同源插图，object-fit 适配右栏 */
.gb-hero-figure {
  width: 100%;
  max-width: 420px;
  height: auto;
  max-height: min(58vh, 520px);
  object-fit: contain;
  object-position: center;
  filter: grayscale(0.08);
  opacity: 0.97;
}

.gb-mono-label {
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin: 0 0 var(--gb-space-3);
  opacity: 0.95;
}

.gb-hero .gb-mono-label {
  color: rgba(0, 0, 0, 0.5);
}

.gb-hero-title {
  margin: 0 0 var(--gb-space-5);
  font-size: clamp(2.75rem, 8vw, 5.375rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: clamp(-0.06em, -0.02em, -1.72px);
  max-width: 16ch;
  color: var(--gb-color-black);
}

.gb-hero-lead {
  margin: 0 0 var(--gb-space-6);
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  font-weight: 330;
  line-height: 1.4;
  letter-spacing: -0.14px;
  max-width: 36rem;
  color: rgba(0, 0, 0, 0.72);
}

.gb-hero-lead code {
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.88em;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.05);
}

.gb-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gb-space-3);
}

/* ---------- 无障碍：跳过链接 ---------- */
.gb-skip-link {
  margin: 0;
}

.gb-skip-link a {
  position: absolute;
  left: -9999px;
  z-index: 100;
  padding: var(--gb-space-2) var(--gb-space-4);
  background: var(--gb-color-black);
  color: var(--gb-color-white);
  text-decoration: none;
  border-radius: var(--gb-radius-card);
}

.gb-skip-link a:focus {
  left: var(--gb-space-4);
  top: var(--gb-space-4);
}

/* ---------- 门户双栏：目录 + 手册主栏 ---------- */
.gb-portal-body {
  width: 100%;
  max-width: var(--gb-shell-max);
  margin: 0 auto;
  padding: var(--gb-space-6) var(--gb-space-4) var(--gb-space-8);
  display: grid;
  grid-template-columns: min(240px, 32%) 1fr;
  gap: var(--gb-space-6) var(--gb-space-8);
  align-items: start;
}

.gb-toc {
  position: sticky;
  top: 72px;
  padding: var(--gb-space-4) 0;
}

.gb-toc-title {
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin: 0 0 var(--gb-space-3);
  color: rgba(0, 0, 0, 0.55);
}

.gb-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.gb-toc-list li {
  margin-bottom: var(--gb-space-2);
}

.gb-toc-list a {
  font-size: 0.9375rem;
  font-weight: 380;
  letter-spacing: -0.12px;
  color: var(--gb-color-black);
  text-decoration: none;
}

.gb-toc-list a:hover {
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.gb-toc-foot {
  margin-top: var(--gb-space-5);
  font-size: 0.8125rem;
  font-weight: 330;
  line-height: 1.5;
  letter-spacing: -0.08px;
  color: rgba(0, 0, 0, 0.5);
}

.gb-toc-foot a {
  color: inherit;
}

.gb-handbook {
  min-width: 0;
}

/* 手册区块：标题层级略小于首页 section title，保持可读 */
.gb-handbook-section {
  margin-bottom: var(--gb-space-8);
  scroll-margin-top: 88px;
}

.gb-handbook-section--callout {
  padding: var(--gb-space-5);
  border-radius: var(--gb-radius-card);
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(0, 0, 0, 0.02);
}

.gb-handbook-heading {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 480;
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin: 0 0 var(--gb-space-3);
}

.gb-handbook-lead {
  font-size: 1.05rem;
  font-weight: 340;
  line-height: 1.45;
  letter-spacing: -0.14px;
  margin: 0 0 var(--gb-space-4);
  max-width: 42rem;
}

.gb-handbook-lead a {
  color: var(--gb-color-black);
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

/* 手册正文段落与小标题 */
.gb-prose {
  margin: 0 0 var(--gb-space-4);
  font-size: 0.9375rem;
  font-weight: 330;
  line-height: 1.58;
  letter-spacing: -0.06px;
  color: rgba(0, 0, 0, 0.82);
  max-width: 50rem;
}

.gb-prose:last-child {
  margin-bottom: 0;
}

.gb-prose a {
  color: var(--gb-color-black);
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.gb-prose code {
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.88em;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.05);
}

.gb-h3 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.12px;
  margin: var(--gb-space-6) 0 var(--gb-space-3);
  color: var(--gb-color-black);
}

.gb-handbook-heading + .gb-prose,
.gb-handbook-heading + .gb-prose-list {
  margin-top: var(--gb-space-2);
}

.gb-prose + .gb-prose-list,
.gb-prose-list + .gb-prose {
  margin-top: var(--gb-space-2);
}

/* 手册正文列表 */
.gb-subhead {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.45);
  margin: var(--gb-space-5) 0 var(--gb-space-2);
}

/* 紧跟在章节标题后的第一个小标题：减少顶距 */
.gb-handbook-heading + .gb-subhead {
  margin-top: var(--gb-space-3);
}

.gb-prose-list {
  margin: 0 0 var(--gb-space-4);
  padding-left: 1.25rem;
  font-size: 0.9375rem;
  font-weight: 330;
  line-height: 1.55;
  letter-spacing: -0.08px;
  color: rgba(0, 0, 0, 0.78);
}

.gb-prose-list li {
  margin-bottom: var(--gb-space-3);
}

.gb-prose-list a {
  color: var(--gb-color-black);
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.gb-prose-list code {
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.9em;
}

.gb-prose-foot {
  margin: var(--gb-space-4) 0 0;
  font-size: 0.8125rem;
  font-weight: 340;
  color: rgba(0, 0, 0, 0.45);
}

.gb-prose-foot a {
  color: var(--gb-color-black);
}

/* Access 区块内轻量说明（非虚线占位框） */
.gb-note {
  margin: var(--gb-space-4) 0 0;
  padding: var(--gb-space-3) var(--gb-space-4);
  font-size: 0.875rem;
  line-height: 1.5;
  color: rgba(0, 0, 0, 0.55);
  background: rgba(0, 0, 0, 0.03);
  border-radius: var(--gb-radius-card);
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.gb-note code {
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.85em;
}

/* 正文未就绪时的虚线占位（中文说明） */
.gb-placeholder {
  margin: 0;
  padding: var(--gb-space-4) var(--gb-space-5);
  border: 2px dashed rgba(0, 0, 0, 0.12);
  border-radius: var(--gb-radius-card);
  font-size: 0.9375rem;
  font-weight: 330;
  line-height: 1.5;
  letter-spacing: -0.1px;
  color: rgba(0, 0, 0, 0.65);
  background: var(--gb-color-white);
}

.gb-placeholder a {
  color: var(--gb-color-black);
  font-weight: 450;
}

/* ---------- 主内容区（旧 Tab 布局保留类名兼容，当前首页已不用 .gb-main） ---------- */
.gb-main {
  padding: var(--gb-space-8) var(--gb-space-4) var(--gb-space-8);
}

.gb-section {
  max-width: var(--gb-max-width);
  margin: 0 auto var(--gb-space-8);
}

.gb-section:last-of-type {
  margin-bottom: 0;
}

.gb-section-label {
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 1.125rem;
  font-weight: 400;
  letter-spacing: 0.54px;
  text-transform: uppercase;
  color: var(--gb-color-black);
  margin: 0 0 var(--gb-space-4);
}

.gb-section-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.96px;
  margin: 0 0 var(--gb-space-4);
}

.gb-section-intro {
  font-size: 1.25rem;
  font-weight: 340;
  line-height: 1.35;
  letter-spacing: -0.26px;
  margin: 0 0 var(--gb-space-6);
  max-width: 40rem;
}

/* 产品式 Tab 条（药丸） */
.gb-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gb-space-2);
  margin-bottom: var(--gb-space-6);
}

.gb-tab {
  padding: 10px 20px;
  border-radius: var(--gb-radius-pill);
  border: none;
  background: transparent;
  color: var(--gb-color-black);
  font-family: inherit;
  font-size: 1.25rem;
  font-weight: 480;
  letter-spacing: -0.1px;
  cursor: pointer;
}

.gb-tab[aria-selected="true"] {
  background: var(--gb-color-black);
  color: var(--gb-color-white);
}

.gb-tab:focus-visible {
  outline: 2px dashed var(--gb-color-black);
  outline-offset: 2px;
}

/* 卡片网格 */
.gb-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--gb-space-5);
}

.gb-card {
  background: var(--gb-color-white);
  border-radius: var(--gb-radius-card);
  padding: var(--gb-space-5);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 8px 24px rgba(0, 0, 0, 0.04);
}

.gb-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.02em;
  margin: 0 0 var(--gb-space-3);
}

.gb-card-body {
  font-size: 1rem;
  font-weight: 340;
  line-height: 1.45;
  letter-spacing: -0.14px;
  margin: 0;
}

/* 手册末尾分隔（替代彩色 showcase 条） */
.gb-section-end {
  margin: var(--gb-space-8) 0 0;
  border: none;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* ---------- 页脚 ---------- */
.gb-footer {
  background: var(--gb-color-black);
  color: var(--gb-color-white);
  padding: var(--gb-space-8) 0;
  margin-top: var(--gb-space-8);
}

.gb-footer-inner.gb-shell {
  padding-top: 0;
  padding-bottom: 0;
}

.gb-footer-inner {
  display: grid;
  gap: var(--gb-space-6);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.gb-footer a {
  color: var(--gb-color-white);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  font-weight: 330;
  letter-spacing: -0.14px;
}

.gb-footer-heading {
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin: 0 0 var(--gb-space-3);
  opacity: 0.85;
}

.gb-footer p {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 320;
  line-height: 1.45;
  letter-spacing: -0.14px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 559px) {
  .gb-header-inner {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
  }

  .gb-nav--minimal {
    margin-left: auto;
  }

  /* 窄屏：目录叠在正文上方 */
  .gb-portal-body {
    grid-template-columns: 1fr;
  }

  .gb-toc {
    position: static;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    padding-bottom: var(--gb-space-5);
  }
}

/* ---------- 登录门禁、登录/注册/管理表单 ---------- */
.gb-auth-gate-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--gb-color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--gb-space-4);
  font-size: 1rem;
  color: rgba(0, 0, 0, 0.65);
}

body.gb-auth-ready .gb-auth-gate-overlay {
  display: none;
}

/* 首页登出确认：遮罩 + 白卡片（Figma 黑白，高于顶栏） */
.gb-logout-dialog {
  position: fixed;
  inset: 0;
  z-index: 12000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--gb-space-4);
  box-sizing: border-box;
}

.gb-logout-dialog[hidden] {
  display: none !important;
}

.gb-logout-dialog__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
}

.gb-logout-dialog__panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: min(26rem, 100%);
  padding: var(--gb-space-6) var(--gb-space-6);
  border-radius: var(--gb-radius-card);
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: var(--gb-color-white);
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.12), 0 2px 12px rgba(0, 0, 0, 0.06);
}

.gb-logout-dialog__eyebrow {
  margin: 0 0 var(--gb-space-2);
}

.gb-logout-dialog__title {
  margin: 0 0 var(--gb-space-3);
  font-size: clamp(1.2rem, 3vw, 1.4rem);
  font-weight: 500;
  letter-spacing: -0.35px;
  line-height: 1.25;
  color: var(--gb-color-black);
}

.gb-logout-dialog__body {
  margin: 0 0 var(--gb-space-6);
  font-size: 0.9375rem;
  font-weight: 330;
  line-height: 1.55;
  letter-spacing: -0.04px;
  color: rgba(0, 0, 0, 0.55);
}

.gb-logout-dialog__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gb-space-3);
  justify-content: flex-end;
}

body.gb-logout-dialog-open {
  overflow: hidden;
}

/* ---------- 登录 / 注册：纯白底双栏；大屏左文案 + 右表单；移动端仅表单（隐藏 .gb-auth-split-intro） ---------- */
/* 窄屏顶区：与首页 gb-hero-copy 同构，默认隐藏 */
.gb-auth-mobile-hero {
  display: none;
}

.gb-login-page,
.gb-register-page {
  background: var(--gb-color-white);
}

.gb-login-page__header,
.gb-register-page__header {
  background: var(--gb-color-white);
}

/* 窄屏表单上方一行文案切换（注册/登录）；桌面隐藏 */
.gb-auth-mobile-switch {
  display: none;
  margin: 0;
  box-sizing: border-box;
}

.gb-login-stage {
  flex: 1;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  /* 顶栏下留白：略大于贴顶，比初版大屏留白仍克制 */
  padding-top: clamp(20px, 3vw, 40px);
  padding-bottom: clamp(40px, 6vw, 80px);
  background: var(--gb-color-white);
}

.gb-login-grid {
  display: grid;
  gap: clamp(var(--gb-space-7), 6vw, var(--gb-space-8));
  align-items: start;
  width: 100%;
}

@media (min-width: 900px) {
  .gb-login-grid {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
    gap: 0;
    /* 行高至少铺满主区可视高度；左栏顶对齐，右栏卡片在行内垂直居中 */
    align-items: stretch;
    min-height: calc(100dvh - 8.5rem);
  }

  /* 注册字段多：右栏略加宽 */
  .gb-register-page .gb-login-grid {
    grid-template-columns: minmax(0, 1fr) minmax(340px, 480px);
  }

  .gb-login-grid .gb-login-intro {
    grid-column: 1;
    align-self: start;
    padding-right: clamp(28px, 4vw, 56px);
    margin-right: clamp(28px, 4vw, 56px);
    border-right: 1px solid rgba(0, 0, 0, 0.07);
  }

  .gb-login-grid .gb-login-card {
    grid-column: 2;
    align-self: center;
  }
}

@media (max-width: 899px) {
  /* 窄屏只保留表单：隐藏左侧说明（登录 + 注册） */
  .gb-auth-split-intro {
    display: none !important;
  }

  /* 顶栏仅 Main site + Register/Log in：单行 + 触控高度 */
  .gb-login-page .gb-header-inner,
  .gb-register-page .gb-header-inner {
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--gb-space-3);
    padding-left: max(var(--gb-space-4), env(safe-area-inset-left, 0px));
    padding-right: max(var(--gb-space-4), env(safe-area-inset-right, 0px));
  }

  .gb-login-page .gb-nav.gb-nav--minimal,
  .gb-register-page .gb-nav.gb-nav--minimal {
    flex: 0 1 auto;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: var(--gb-space-2) var(--gb-space-4);
    padding-top: 0;
    margin-top: 0;
    border-top: none;
  }

  .gb-login-page .gb-nav-text,
  .gb-register-page .gb-nav-text {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  /* 与首页 Hero 同构：mono + 大标题 + 导语 + 底部分隔（对齐 .gb-hero / .gb-portal-body 节奏） */
  .gb-auth-mobile-hero {
    display: block;
    grid-column: 1 / -1;
    margin: 0 0 var(--gb-space-1);
    padding-bottom: var(--gb-space-5);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  }

  .gb-auth-mobile-hero .gb-mono-label {
    margin: 0 0 var(--gb-space-3);
    color: rgba(0, 0, 0, 0.5);
  }

  .gb-auth-mobile-title {
    margin: 0 0 var(--gb-space-3);
    font-size: clamp(2.125rem, 11vw, 3rem);
    font-weight: 400;
    line-height: 1.02;
    letter-spacing: -0.04em;
    color: var(--gb-color-black);
  }

  .gb-auth-mobile-lead {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 330;
    line-height: 1.45;
    letter-spacing: -0.12px;
    color: rgba(0, 0, 0, 0.62);
    max-width: 36rem;
  }

  /* 切换链接：对齐 .gb-prose / 手册正文语气 */
  .gb-auth-mobile-switch {
    display: block;
    grid-column: 1 / -1;
    margin: var(--gb-space-5) 0 var(--gb-space-3);
    font-size: 0.9375rem;
    font-weight: 330;
    line-height: 1.55;
    letter-spacing: -0.06px;
    color: rgba(0, 0, 0, 0.72);
    max-width: 36rem;
  }

  .gb-auth-mobile-switch a {
    color: var(--gb-color-black);
    font-weight: 450;
    text-decoration: underline;
    text-decoration-thickness: 1px;
  }

  .gb-auth-mobile-switch a:hover {
    opacity: 0.85;
  }

  .gb-login-intro {
    border-right: none;
    margin-right: 0;
    padding-right: 0;
  }

  .gb-login-grid {
    min-height: 0;
    gap: 0;
  }

  /* 表单容器：对齐手册 .gb-handbook-section--callout（浅底 + 细框，非大白悬浮卡） */
  .gb-login-page .gb-login-card,
  .gb-register-page .gb-login-card {
    position: static;
    max-width: none;
    width: 100%;
    margin-left: 0;
    margin-right: 0;
    margin-top: 0;
    padding: var(--gb-space-5);
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--gb-radius-card);
    box-shadow: none;
  }

  /* 窄屏只要字段+按钮：隐藏 YOUR ACCOUNT / YOUR REGISTRATION 与说明段 */
  .gb-login-page .gb-login-card-head,
  .gb-register-page .gb-login-card-head {
    display: none !important;
  }

  .gb-login-page .gb-login-card.gb-auth-card--form,
  .gb-register-page .gb-login-card.gb-auth-card--form {
    margin-left: 0;
    margin-right: 0;
  }

  /* 主区内边距对齐 .gb-portal-body 窄屏节奏 */
  .gb-login-stage {
    padding-top: var(--gb-space-6);
    padding-bottom: max(var(--gb-space-8), env(safe-area-inset-bottom, 0px));
    padding-left: max(var(--gb-space-4), env(safe-area-inset-left, 0px));
    padding-right: max(var(--gb-space-4), env(safe-area-inset-right, 0px));
  }

  /* 表单区按钮：全宽堆叠 + 48px 触控（DESIGN.md 药丸 + Body/Button 16px） */
  .gb-login-page .gb-auth-actions,
  .gb-register-page .gb-auth-actions {
    flex-direction: column;
    align-items: stretch;
    gap: var(--gb-space-3);
  }

  .gb-login-page .gb-auth-actions .gb-btn-pill,
  .gb-register-page .gb-auth-actions .gb-btn-pill {
    width: 100%;
    justify-content: center;
    min-height: 48px;
    padding: 12px 22px 14px;
    font-size: 1rem;
    font-weight: 400;
    letter-spacing: -0.14px;
  }

  /* 次要操作：DESIGN.md Glass Dark（浅底二级药丸） */
  .gb-login-page .gb-auth-actions .gb-btn-pill--outline {
    background: var(--gb-glass-dark);
    border: 1px solid rgba(0, 0, 0, 0.1);
    color: var(--gb-color-black);
  }

  .gb-login-page .gb-auth-actions .gb-btn-pill--outline:hover {
    background: rgba(0, 0, 0, 0.12);
  }

  /* 输入：16px 防 iOS 缩放；白底与 callout 浅灰底区分（同手册表单区对比） */
  .gb-login-page .gb-field input,
  .gb-register-page .gb-field input {
    min-height: 48px;
    font-size: 16px;
    padding: 12px 14px;
    border-radius: 6px;
    background: var(--gb-color-white);
  }
}

.gb-login-intro {
  min-width: 0;
}

.gb-login-intro__eyebrow {
  margin: 0 0 var(--gb-space-3);
  color: rgba(0, 0, 0, 0.42);
}

/* 主标题两行：大字 Sign in + 副行产品名（DESIGN Display + Body Light） */
.gb-login-headline {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--gb-space-3);
  margin: 0 0 var(--gb-space-5);
  color: var(--gb-color-black);
}

.gb-login-headline__main {
  font-size: clamp(2.75rem, 8vw, 4rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: clamp(-0.06em, -0.03em, -0.02em);
}

.gb-login-headline__sub {
  font-size: clamp(1rem, 2vw, 1.125rem);
  font-weight: 330;
  line-height: 1.35;
  letter-spacing: -0.1px;
  color: rgba(0, 0, 0, 0.42);
  max-width: 22rem;
}

/* 正文导语：内部、需权限 */
.gb-login-dek {
  margin: 0 0 var(--gb-space-6);
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  font-weight: 330;
  line-height: 1.5;
  letter-spacing: -0.12px;
  color: rgba(0, 0, 0, 0.55);
  max-width: 36rem;
}

.gb-login-dek strong {
  font-weight: 520;
  color: rgba(0, 0, 0, 0.9);
}

/* 要点区：浅底 + 细边框，便于扫读（界面仍为黑白） */
.gb-login-facts-panel {
  margin: 0 0 var(--gb-space-6);
  padding: var(--gb-space-5) var(--gb-space-5);
  max-width: 36rem;
  border-radius: var(--gb-radius-card);
  border: 1px solid rgba(0, 0, 0, 0.07);
  background: rgba(0, 0, 0, 0.025);
}

.gb-login-facts-label {
  margin: 0 0 var(--gb-space-3);
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.58px;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.4);
}

.gb-login-facts {
  margin: 0;
  padding: 0;
  list-style: none;
}

.gb-login-facts li {
  position: relative;
  margin: 0 0 var(--gb-space-3);
  padding-left: var(--gb-space-5);
  font-size: 0.9375rem;
  font-weight: 330;
  line-height: 1.5;
  letter-spacing: -0.08px;
  color: rgba(0, 0, 0, 0.52);
}

.gb-login-facts li:last-child {
  margin-bottom: 0;
}

.gb-login-facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gb-color-black);
  opacity: 0.75;
}

.gb-login-facts strong {
  font-weight: 500;
  color: var(--gb-color-black);
}

.gb-login-rule {
  margin: 0 0 var(--gb-space-4);
  max-width: 20rem;
  border: none;
  height: 1px;
  background: rgba(0, 0, 0, 0.08);
}

.gb-login-footnote {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 330;
  line-height: 1.5;
  color: rgba(0, 0, 0, 0.42);
  max-width: 36rem;
}

.gb-login-footnote a {
  color: var(--gb-color-black);
  font-weight: 450;
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.gb-login-footnote a:hover {
  opacity: 0.85;
}

/* 右栏卡片 elevation 仅桌面：勿写在全局，否则会盖过窄屏「去盒子」规则（特异性更高） */
.gb-login-page .gb-login-card.gb-auth-card,
.gb-register-page .gb-login-card.gb-auth-card {
  width: 100%;
}

.gb-login-card-head {
  margin: 0 0 var(--gb-space-5);
  padding-bottom: var(--gb-space-5);
  border-bottom: 1px solid rgba(0, 0, 0, 0.07);
}

.gb-login-card-head .gb-auth-card-kicker {
  margin-bottom: var(--gb-space-2);
}

.gb-login-card-hint {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 330;
  line-height: 1.45;
  letter-spacing: -0.08px;
  color: rgba(0, 0, 0, 0.48);
}

.gb-login-page .gb-auth-actions,
.gb-register-page .gb-auth-actions {
  margin-top: var(--gb-space-6);
}

.gb-login-submit {
  min-width: 7.5rem;
}

.gb-register-submit {
  min-width: 9rem;
}

@media (min-width: 900px) {
  .gb-login-page .gb-login-card.gb-auth-card,
  .gb-register-page .gb-login-card.gb-auth-card {
    padding-top: var(--gb-space-7);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04), 0 20px 50px rgba(0, 0, 0, 0.09);
  }

  .gb-login-page .gb-login-card.gb-auth-card {
    margin-left: auto;
    margin-right: 0;
    max-width: 420px;
  }

  .gb-register-page .gb-login-card.gb-auth-card {
    margin-left: auto;
    margin-right: 0;
    max-width: 480px;
  }
}

.gb-auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--gb-color-white);
}

/* 登录/注册顶栏右侧仅一个入口时的对齐 */
.gb-auth-header-nav {
  align-items: center;
}

.gb-auth-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(var(--gb-space-6), 6vw, var(--gb-space-8)) var(--gb-space-4);
}

/* DESIGN.md：双栏近似营销页 — 左文案层级 + 右表单卡片（窄屏单列） */
.gb-auth-layout {
  display: grid;
  gap: var(--gb-space-7);
  width: 100%;
  max-width: 920px;
  align-items: center;
}

@media (min-width: 800px) {
  .gb-auth-layout {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 400px);
    gap: var(--gb-space-8);
    min-height: min(56vh, 480px);
  }

  .gb-auth-layout--register {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 480px);
  }
}

.gb-auth-aside {
  min-width: 0;
}

.gb-auth-eyebrow {
  margin: 0 0 var(--gb-space-2);
  color: rgba(0, 0, 0, 0.45);
}

/* 对齐 DESIGN Display / Section：大号轻字重 + 紧字距 */
.gb-auth-display {
  margin: 0 0 var(--gb-space-4);
  font-size: clamp(2.25rem, 6vw, 3.25rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: clamp(-0.05em, -0.02em, -0.12em);
  color: var(--gb-color-black);
}

.gb-auth-aside-lead {
  margin: 0;
  max-width: 36ch;
  font-size: 1rem;
  font-weight: 330;
  line-height: 1.5;
  letter-spacing: -0.12px;
  color: rgba(0, 0, 0, 0.5);
}

.gb-auth-aside-lead a {
  color: var(--gb-color-black);
  font-weight: 450;
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.gb-auth-aside-lead a:hover {
  opacity: 0.85;
}

/* 门户说明里加粗句，强调「内部 / 需权限」 */
.gb-auth-aside-lead strong {
  font-weight: 520;
  color: var(--gb-color-black);
}

.gb-auth-aside-lead--secondary {
  margin-top: var(--gb-space-4);
  font-size: 0.9375rem;
}

/* DESIGN.md：卡片 8px 圆角 + elevation；表单区单独 kicker */
.gb-auth-card {
  width: 100%;
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
  padding: var(--gb-space-6) var(--gb-space-6) var(--gb-space-7);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--gb-radius-card);
  background: var(--gb-color-white);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 12px 40px rgba(0, 0, 0, 0.07);
}

.gb-auth-card--wide {
  max-width: 480px;
}

.gb-auth-card--form {
  max-width: none;
}

@media (min-width: 800px) {
  .gb-auth-card--form {
    margin-left: 0;
    margin-right: 0;
  }
}

/* 窄屏：压过后方 .gb-auth-card 白底，改为与手册 callout 一致（须高特异度） */
@media (max-width: 899px) {
  .gb-login-page .gb-login-card.gb-auth-card.gb-auth-card--form,
  .gb-register-page .gb-login-card.gb-auth-card.gb-auth-card--form {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--gb-radius-card);
    padding: var(--gb-space-5);
    box-shadow: none;
    max-width: none;
  }
}

.gb-auth-card-kicker {
  margin: 0 0 var(--gb-space-4);
  color: rgba(0, 0, 0, 0.4);
  font-size: 0.6875rem;
  letter-spacing: 0.65px;
}

.gb-auth-title {
  margin: 0 0 var(--gb-space-2);
  font-size: clamp(1.5rem, 4vw, 1.75rem);
  font-weight: 480;
  letter-spacing: -0.04em;
  line-height: 1.15;
  color: var(--gb-color-black);
}

.gb-auth-muted {
  margin: 0 0 var(--gb-space-5);
  font-size: 0.9375rem;
  font-weight: 330;
  color: rgba(0, 0, 0, 0.52);
  line-height: 1.5;
  letter-spacing: -0.12px;
}

.gb-auth-muted a {
  color: var(--gb-color-black);
  font-weight: 450;
  text-decoration: underline;
  text-decoration-thickness: 1px;
}

.gb-auth-muted a:hover {
  opacity: 0.85;
}

.gb-field {
  margin-bottom: var(--gb-space-4);
}

/* 表单标签：mono 小写宽（DESIGN Mono Small 气质） */
.gb-auth-page .gb-field label {
  display: block;
  margin-bottom: var(--gb-space-2);
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.55px;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.55);
}

.gb-field label {
  display: block;
  margin-bottom: var(--gb-space-2);
  font-size: 0.875rem;
  font-weight: 500;
}

.gb-field input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid rgba(0, 0, 0, 0.14);
  border-radius: 6px;
  font: inherit;
  background: var(--gb-color-white);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
}

.gb-field input:hover {
  border-color: rgba(0, 0, 0, 0.22);
}

/* 输入框焦点：常规实线边框加深，不用虚线外圈 */
.gb-auth-page .gb-field input:focus {
  outline: none;
  border-color: rgba(0, 0, 0, 0.4);
  box-shadow: none;
}

.gb-auth-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gb-space-3);
  align-items: center;
  margin-top: var(--gb-space-5);
}

.gb-nav-user {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--gb-space-2) var(--gb-space-3);
}

.gb-nav-user-email {
  font-size: 0.8125rem;
  color: rgba(0, 0, 0, 0.5);
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- Admin（DESIGN 黑白 + mono 分区标签） ---------- */
.gb-admin-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--gb-color-white);
}

.gb-admin-app {
  flex: 1;
  padding-bottom: var(--gb-space-8);
}

/* Admin 顶栏整块：标题 + 说明 + Tab 同壳，仅底部一条线（无 Admin/Settings 双段分割） */
.gb-admin-page-head {
  padding-top: var(--gb-space-6);
  padding-bottom: var(--gb-space-5);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  font-feature-settings: "kern" 1;
}

.gb-admin-page-head .gb-admin-header {
  margin-bottom: var(--gb-space-5);
  max-width: 42rem;
}

/* Admin：主内容单列（仅 main） */
.gb-portal-body--admin {
  padding-top: var(--gb-space-6);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
}

/* 顶栏内分区：横向文字导航（DESIGN「Links: black, underline 1px」— 不用药丸按钮） */
.gb-admin-sidebar {
  position: static;
  width: 100%;
  padding: 0;
  margin: 0;
  border: none;
}

.gb-admin-sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--gb-space-1) var(--gb-space-5);
  align-items: flex-end;
}

.gb-admin-sidebar-item {
  margin: 0;
  flex: 0 0 auto;
}

/* 导航项：底边线表示当前节，hover 浅线 — 视觉上像顶栏链接而非 CTA */
.gb-admin-sidebar-tab {
  display: inline-block;
  box-sizing: border-box;
  margin: 0;
  padding: 6px 2px 10px;
  border: none;
  border-radius: 0;
  border-bottom: 2px solid transparent;
  background: none;
  color: rgba(0, 0, 0, 0.48);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 340;
  letter-spacing: -0.14px;
  line-height: 1.35;
  text-align: left;
  text-decoration: none;
  cursor: pointer;
  transition:
    color 0.15s ease,
    border-color 0.15s ease;
}

.gb-admin-sidebar-tab:hover {
  color: var(--gb-color-black);
  border-bottom-color: rgba(0, 0, 0, 0.22);
}

.gb-admin-sidebar-tab:focus-visible {
  outline: 2px dashed var(--gb-color-black);
  outline-offset: 3px;
}

/* 当前板块：全黑字 + 实线底划（导航当前页） */
.gb-admin-sidebar-tab[aria-selected="true"],
.gb-admin-sidebar-tab.gb-admin-sidebar-tab--active {
  color: var(--gb-color-black);
  font-weight: 450;
  border-bottom-color: var(--gb-color-black);
}

.gb-admin-sidebar-tab[aria-selected="true"]:hover,
.gb-admin-sidebar-tab.gb-admin-sidebar-tab--active:hover {
  color: var(--gb-color-black);
  border-bottom-color: var(--gb-color-black);
}

.gb-admin-main {
  min-width: 0;
  font-feature-settings: "kern" 1;
}

.gb-admin-panels {
  min-width: 0;
}

/* 右侧单次仅一块：类仪表盘设置页 */
.gb-admin-panel {
  min-width: 0;
  animation: gb-admin-panel-in 0.2s ease-out;
}

/* ① 新建邀请：整块占满主栏宽；内部「固定标签栏 + minmax(0,1fr) 控件列」+ 独立输出卡 */
.gb-admin-panel--invite-new .gb-admin-panel-header--invite-new {
  max-width: 100%;
  margin-bottom: var(--gb-space-6);
  padding-bottom: var(--gb-space-5);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.gb-admin-panel--invite-new .gb-admin-panel-desc {
  max-width: min(44rem, 100%);
}

.gb-admin-invite-workspace {
  display: flex;
  flex-direction: column;
  gap: var(--gb-space-6);
  width: 100%;
  max-width: none;
}

/* 表单容器：全宽 + 轻 elevation（DESIGN 深度） */
.gb-admin-settings.gb-admin-settings--invite-new {
  max-width: none;
  width: 100%;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--gb-radius-card);
  background: var(--gb-color-white);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 10px 28px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.gb-admin-panel--invite-new .gb-admin-setting-row--invite-new {
  display: grid;
  grid-template-columns: minmax(11.5rem, clamp(12rem, 22vw, 17rem)) minmax(0, 1fr);
  gap: var(--gb-space-4) var(--gb-space-7);
  align-items: start;
  padding: var(--gb-space-6) clamp(var(--gb-space-5), 4vw, var(--gb-space-8));
}

.gb-admin-panel--invite-new .gb-admin-setting-row--actions .gb-admin-setting-control--action {
  justify-self: start;
  align-self: center;
}

.gb-admin-panel--invite-new .gb-admin-setting-input--invite-new {
  min-height: 48px;
  padding: 12px 14px;
  font-size: 1rem;
}

/* 输出：与表单同宽；码区占满剩余列，Copy 独立一列 */
.gb-admin-invite-workspace .gb-invite-result--invite-new {
  margin-top: 0;
  max-width: none;
  width: 100%;
  box-sizing: border-box;
  padding: var(--gb-space-6) clamp(var(--gb-space-5), 4vw, var(--gb-space-8));
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.025);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.gb-admin-panel--invite-new .gb-invite-result__row--invite-new {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--gb-space-4);
  align-items: stretch;
}

.gb-admin-panel--invite-new .gb-invite-result__code {
  display: flex;
  align-items: center;
  min-height: 3rem;
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  padding: var(--gb-space-3) var(--gb-space-4);
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.875rem;
  line-height: 1.45;
  word-break: break-all;
  background: var(--gb-color-white);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 6px;
  color: var(--gb-color-black);
}

.gb-admin-panel--invite-new .gb-invite-result__copy {
  align-self: center;
}

/* ② Lab members + ③ 邀请码列表：同一套「原版」邀请表风格（浅表头、版心约 76rem 居中） */
.gb-admin-panel--members .gb-admin-panel-header,
.gb-admin-panel--invite-list .gb-admin-panel-header {
  max-width: min(40rem, 100%);
}

.gb-admin-panel--members .gb-admin-table-wrap,
.gb-admin-panel--invite-list .gb-admin-table-wrap {
  max-width: min(76rem, 100%);
  margin-left: auto;
  margin-right: auto;
}

.gb-admin-cell-email {
  max-width: 14rem;
  word-break: break-all;
  font-size: 0.8125rem;
}

.gb-admin-cell-tight {
  min-width: 7rem;
  max-width: 12rem;
}

.gb-admin-cell-role {
  white-space: nowrap;
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: capitalize;
}

.gb-admin-cell-muted {
  white-space: nowrap;
  font-size: 0.8125rem;
  font-weight: 330;
  color: rgba(0, 0, 0, 0.48);
}

/* Firestore `disabled` 列：Yes/No，Figma 黑白语义 */
.gb-admin-cell-disabled-field {
  white-space: nowrap;
  font-size: 0.8125rem;
}

.gb-admin-disabled-flag {
  font-weight: 500;
  letter-spacing: -0.02em;
}

.gb-admin-disabled-flag--true {
  color: var(--gb-color-black);
}

.gb-admin-disabled-flag--false {
  color: rgba(0, 0, 0, 0.38);
}

/* 成员表空字段：一字线 */
.gb-admin-cell-dash {
  color: rgba(0, 0, 0, 0.32);
  font-weight: 330;
  user-select: none;
}

/* 已禁止手册访问的成员：整行浅灰底 + 首列左侧黑条（Figma 黑白，一眼区分） */
.gb-admin-panel--members .gb-admin-table tbody tr.gb-admin-user-row--blocked td {
  background-color: rgba(0, 0, 0, 0.05);
}

.gb-admin-panel--members .gb-admin-table tbody tr.gb-admin-user-row--blocked td:first-child {
  border-left: 4px solid var(--gb-color-black);
  /* 抵消左边条占位，与未禁用行首列文字大致对齐 */
  padding-left: calc(var(--gb-space-4) - 4px);
}

.gb-admin-panel--members .gb-admin-table tbody tr.gb-admin-user-row--blocked:hover td {
  background-color: rgba(0, 0, 0, 0.075);
}

@keyframes gb-admin-panel-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .gb-admin-panel {
    animation: none;
  }
}

.gb-admin-panel-header {
  margin-bottom: var(--gb-space-6);
  max-width: min(56rem, 100%);
}

.gb-admin-panel-kicker {
  margin: 0 0 var(--gb-space-2);
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: rgba(0, 0, 0, 0.48);
}

.gb-admin-panel-heading {
  margin: 0 0 var(--gb-space-2);
  font-size: clamp(1.35rem, 3vw, 1.65rem);
  font-weight: 480;
  letter-spacing: -0.4px;
  line-height: 1.2;
  color: var(--gb-color-black);
}

.gb-admin-panel-desc {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 330;
  line-height: 1.5;
  letter-spacing: -0.06px;
  color: rgba(0, 0, 0, 0.52);
}

/* 设置行：左文案右控件，清爽分隔 */
.gb-admin-settings {
  max-width: min(52rem, 100%);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--gb-radius-card);
  overflow: hidden;
  background: var(--gb-color-white);
}

.gb-admin-setting-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(160px, 280px);
  gap: var(--gb-space-4) var(--gb-space-6);
  align-items: center;
  padding: var(--gb-space-5) var(--gb-space-5);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.gb-admin-setting-row:last-child {
  border-bottom: none;
}

.gb-admin-setting-row--actions {
  align-items: center;
}

.gb-admin-setting-label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.12px;
  color: var(--gb-color-black);
}

.gb-admin-setting-hint {
  margin: var(--gb-space-1) 0 0;
  font-size: 0.8125rem;
  font-weight: 330;
  line-height: 1.45;
  letter-spacing: -0.04px;
  color: rgba(0, 0, 0, 0.48);
}

.gb-admin-setting-input {
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  padding: 10px 12px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  border-radius: 6px;
  background: var(--gb-color-white);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 380;
  letter-spacing: -0.08px;
  color: var(--gb-color-black);
}

.gb-admin-setting-input:hover {
  border-color: rgba(0, 0, 0, 0.2);
}

.gb-admin-setting-input:focus {
  outline: none;
  border-color: rgba(0, 0, 0, 0.4);
  box-shadow: none;
}

/* 旧类名保留：若其它页复用可再接；新建邀请已改用 .gb-invite-result--invite-new */
.gb-invite-result--settings {
  margin-top: var(--gb-space-5);
  max-width: min(52rem, 100%);
}

/* Admin 内表格：浅表头见下 */
.gb-admin-panel .gb-admin-table-wrap {
  margin-top: var(--gb-space-2);
}

.gb-admin-panel .gb-admin-table thead {
  background: rgba(0, 0, 0, 0.03);
  color: var(--gb-color-black);
}

.gb-admin-panel .gb-admin-table th {
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  color: rgba(0, 0, 0, 0.72);
}

/* 成员开关：DESIGN 黑白，滑块示意 */
.gb-admin-access-cell {
  vertical-align: middle;
}

/* admin/pi 行：无开关，仅展示状态（与规则「控制台专属」一致） */
.gb-admin-access-locked {
  font-size: 0.8125rem;
  font-weight: 330;
  letter-spacing: -0.04px;
  color: rgba(0, 0, 0, 0.42);
  cursor: help;
}

.gb-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  width: 48px;
  height: 28px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}

.gb-switch:focus-visible {
  outline: 2px dashed var(--gb-color-black);
  outline-offset: 3px;
  border-radius: 14px;
}

.gb-switch__track {
  position: relative;
  display: block;
  width: 48px;
  height: 28px;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.12);
  transition: background 0.2s ease;
}

.gb-switch[aria-checked="true"] .gb-switch__track {
  background: var(--gb-color-black);
}

.gb-switch__thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--gb-color-white);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.18);
  transition: transform 0.2s ease;
}

.gb-switch[aria-checked="true"] .gb-switch__thumb {
  transform: translateX(20px);
}

.gb-switch:disabled {
  cursor: wait;
  opacity: 0.72;
}

/* 请求进行中：轨道轻微脉动，提示已收到点击 */
.gb-switch.gb-switch--busy .gb-switch__track {
  animation: gb-switch-pulse 0.9s ease-in-out infinite;
}

@keyframes gb-switch-pulse {
  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.55;
  }
}

@media (prefers-reduced-motion: reduce) {
  .gb-switch.gb-switch--busy .gb-switch__track {
    animation: none;
  }
}

/* 分区由 .gb-handbook-section 承担纵向节奏，卡片不再叠一层下边距 */
.gb-handbook-section .gb-admin-card {
  margin-bottom: 0;
}

@media (max-width: 639px) {
  .gb-admin-setting-row {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .gb-admin-panel--invite-new .gb-admin-setting-row--invite-new {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 559px) {
  .gb-admin-panel--invite-new .gb-invite-result__row--invite-new {
    grid-template-columns: 1fr;
  }

  .gb-admin-panel--invite-new .gb-invite-result__copy {
    justify-self: start;
  }
}

@media (max-width: 559px) {
  .gb-portal-body--admin {
    gap: var(--gb-space-6);
  }

  .gb-admin-sidebar-list {
    gap: var(--gb-space-1) var(--gb-space-4);
  }

  .gb-admin-sidebar-tab {
    padding: 6px 2px 8px;
    font-size: 0.9375rem;
  }
}

.gb-admin-header {
  margin-bottom: var(--gb-space-7);
  max-width: 42rem;
}

.gb-admin-eyebrow {
  margin: 0 0 var(--gb-space-2);
  color: rgba(0, 0, 0, 0.45);
}

.gb-admin-title {
  margin: 0 0 var(--gb-space-2);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 480;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.gb-admin-lead {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 330;
  color: rgba(0, 0, 0, 0.52);
  line-height: 1.5;
  max-width: 36rem;
}

/* 卡片内紧跟标题的说明（邀请列表） */
.gb-admin-lead--tight {
  margin: calc(-1 * var(--gb-space-2)) 0 var(--gb-space-4);
  max-width: 42rem;
}

.gb-admin-lead--tight strong {
  font-weight: 520;
  color: var(--gb-color-black);
}

.gb-admin-code {
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.75rem;
  word-break: break-all;
}

/* 邀请列表：码格可点复制（Figma 虚线提示可交互，与焦点语言一致） */
button.gb-admin-code--copy {
  display: inline-block;
  max-width: 100%;
  margin: 0;
  padding: 4px 8px;
  font: inherit;
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.75rem;
  line-height: 1.35;
  text-align: left;
  color: var(--gb-color-black);
  word-break: break-all;
  background: rgba(0, 0, 0, 0.03);
  border: 1px dashed rgba(0, 0, 0, 0.18);
  border-radius: 6px;
  cursor: pointer;
}

button.gb-admin-code--copy:hover {
  background: rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.28);
}

button.gb-admin-code--copy:focus-visible {
  outline: 2px dashed var(--gb-color-black);
  outline-offset: 2px;
}

.gb-admin-table-empty {
  text-align: center;
  padding: var(--gb-space-5);
  font-size: 0.875rem;
  color: rgba(0, 0, 0, 0.45);
}

.gb-admin-actions-cell {
  white-space: nowrap;
}

.gb-admin-actions-cell .gb-btn-pill + .gb-btn-pill {
  margin-left: var(--gb-space-2);
}

/* 邀请表 Actions：勿在 td 上使用 flex，否则会打断 border-collapse 行线、视觉上与左侧割裂 */
.gb-admin-actions-cell--invite {
  vertical-align: middle;
  white-space: normal;
}

.gb-invite-actions-inner {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 2px;
  line-height: 1.35;
}

.gb-invite-usedby-cell {
  font-size: 0.875rem;
  font-weight: 330;
  letter-spacing: -0.06px;
  color: rgba(0, 0, 0, 0.82);
  max-width: min(22rem, 36vw);
  word-break: break-word;
}

.gb-invite-action {
  margin: 0;
  padding: 2px 0;
  border: none;
  background: none;
  font-family: inherit;
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: -0.04px;
  line-height: 1.35;
  color: var(--gb-color-black);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: rgba(0, 0, 0, 0.28);
}

.gb-invite-action:hover {
  text-decoration-color: var(--gb-color-black);
}

.gb-invite-action:focus-visible {
  outline: 2px dashed var(--gb-color-black);
  outline-offset: 2px;
  border-radius: 2px;
}

.gb-invite-action--delete {
  color: rgba(0, 0, 0, 0.48);
}

.gb-invite-action--delete:hover {
  color: var(--gb-color-black);
}

.gb-invite-action:disabled {
  opacity: 0.42;
  cursor: not-allowed;
  text-decoration-color: rgba(0, 0, 0, 0.12);
}

.gb-invite-action-sep {
  display: inline-block;
  padding: 0 4px;
  font-size: 0.8125rem;
  color: rgba(0, 0, 0, 0.28);
  user-select: none;
}

.gb-invite-status {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.gb-invite-status--active {
  color: var(--gb-color-black);
}

.gb-invite-status--used {
  color: rgba(0, 0, 0, 0.42);
}

.gb-invite-status--revoked {
  color: rgba(0, 0, 0, 0.48);
}

.gb-admin-card {
  margin-bottom: var(--gb-space-6);
  padding: var(--gb-space-6);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--gb-radius-card);
  background: var(--gb-color-white);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 28px rgba(0, 0, 0, 0.05);
}

.gb-admin-card--table {
  padding-bottom: var(--gb-space-4);
}

.gb-admin-section-title {
  margin: 0 0 var(--gb-space-5);
  font-size: 1.125rem;
  font-weight: 480;
  letter-spacing: -0.03em;
  display: flex;
  flex-direction: column;
  gap: var(--gb-space-2);
}

.gb-admin-section-kicker {
  margin: 0;
  font-size: 0.6875rem;
  letter-spacing: 0.65px;
  opacity: 0.75;
}

.gb-admin-field {
  max-width: 28rem;
}

.gb-admin-card-actions {
  margin-top: var(--gb-space-4);
}

/* Admin + 登录/注册：底部黑底 Toast，共用过渡（与 DESIGN 界面层一致） */
.gb-admin-feedback,
.gb-auth-feedback {
  position: fixed;
  left: 50%;
  bottom: max(var(--gb-space-6), calc(env(safe-area-inset-bottom, 0px) + var(--gb-space-4)));
  z-index: 100;
  box-sizing: border-box;
  width: max-content;
  max-width: min(520px, calc(100vw - 2 * var(--gb-space-4)));
  margin: 0;
  padding: var(--gb-space-3) var(--gb-space-5);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: -0.1px;
  line-height: 1.4;
  text-align: center;
  border-radius: var(--gb-radius-pill);
  word-wrap: break-word;
  visibility: hidden;
  pointer-events: none;
  opacity: 0;
  transform: translateX(-50%) translateY(18px) scale(0.97);
  transition:
    opacity 0.38s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.42s cubic-bezier(0.16, 1, 0.3, 1),
    visibility 0s linear 0.42s;
  will-change: opacity, transform;
}

.gb-admin-feedback.gb-admin-feedback--visible,
.gb-auth-feedback.gb-auth-feedback--visible {
  visibility: visible;
  pointer-events: auto;
  opacity: 1;
  transform: translateX(-50%) translateY(0) scale(1);
  transition:
    opacity 0.38s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.42s cubic-bezier(0.16, 1, 0.3, 1),
    visibility 0s linear 0s;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15), 0 2px 10px rgba(0, 0, 0, 0.06);
}

/* 底色不依赖 --visible，收起动画时不会突然掉色 */
.gb-admin-feedback--success,
.gb-auth-feedback--success {
  background: var(--gb-color-black);
  color: var(--gb-color-white);
}

/* 与成功一致：黑底白字；语义靠文案与 role */
.gb-admin-feedback--error,
.gb-auth-feedback--error {
  background: var(--gb-color-black);
  color: var(--gb-color-white);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.gb-admin-feedback--error.gb-admin-feedback--visible,
.gb-auth-feedback--error.gb-auth-feedback--visible {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15), 0 2px 10px rgba(0, 0, 0, 0.06);
}

@media (prefers-reduced-motion: reduce) {
  .gb-admin-feedback,
  .gb-auth-feedback {
    transition-duration: 0.01ms;
    transition-delay: 0s !important;
  }

  .gb-admin-feedback.gb-admin-feedback--visible,
  .gb-auth-feedback.gb-auth-feedback--visible {
    transition-duration: 0.01ms;
  }
}

.gb-invite-result {
  margin-top: var(--gb-space-5);
  padding: var(--gb-space-4);
  border: 2px dashed rgba(0, 0, 0, 0.18);
  border-radius: var(--gb-radius-card);
  background: rgba(0, 0, 0, 0.02);
}

.gb-invite-result__label {
  margin: 0 0 var(--gb-space-3);
  color: rgba(0, 0, 0, 0.5);
  font-size: 0.6875rem;
}

.gb-invite-result__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--gb-space-3);
}

.gb-invite-result__code {
  flex: 1;
  min-width: 12rem;
  margin: 0;
  padding: var(--gb-space-3) var(--gb-space-3);
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
  font-size: 0.8125rem;
  word-break: break-all;
  background: var(--gb-color-white);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 6px;
  color: var(--gb-color-black);
}

.gb-invite-result__hint {
  margin: var(--gb-space-3) 0 0;
  font-size: 0.8125rem;
  color: rgba(0, 0, 0, 0.5);
}

.gb-admin-table-wrap {
  overflow-x: auto;
  margin-top: var(--gb-space-2);
  border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

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

.gb-admin-table thead {
  background: var(--gb-color-black);
  color: var(--gb-color-white);
}

.gb-admin-table th {
  text-align: left;
  padding: var(--gb-space-3) var(--gb-space-4);
  font-weight: 500;
  font-size: 0.6875rem;
  letter-spacing: 0.55px;
  text-transform: uppercase;
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
}

.gb-admin-table td {
  text-align: left;
  padding: var(--gb-space-3) var(--gb-space-4);
  border-bottom: 1px solid rgba(0, 0, 0, 0.07);
  vertical-align: middle;
}

.gb-admin-table tbody tr:last-child td {
  border-bottom: none;
}

.gb-admin-table tbody tr:hover td {
  background: rgba(0, 0, 0, 0.02);
}

/* 行内 Enable=黑底强调，Disable=线框次要 */
.gb-admin-toggle.gb-btn-pill {
  white-space: nowrap;
}

button.gb-btn-pill {
  cursor: pointer;
}

/* 兼容旧类名：无 pill 类时的表格按钮回退 */
.gb-admin-toggle:not(.gb-btn-pill) {
  cursor: pointer;
  font: inherit;
  padding: 4px 10px;
  border-radius: var(--gb-radius-pill);
  border: 1px solid rgba(0, 0, 0, 0.2);
  background: var(--gb-color-white);
}

/* ----- Pending approval（注册后提示页，与 login/register 同系） ----- */
.gb-pending-page .gb-pending-card-status {
  margin: 0 0 var(--gb-space-2);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: -0.06px;
  color: var(--gb-color-black);
}

.gb-pending-page .gb-pending-card-hint {
  margin: 0;
  color: rgba(0, 0, 0, 0.52);
}

.gb-pending-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gb-space-3);
  margin-top: var(--gb-space-5);
}

.gb-pending-page .gb-pending-facts {
  border-color: rgba(0, 0, 0, 0.1);
}

/* Admin：审批徽章（DESIGN.md 黑白界面层） */
.gb-admin-cell-approval {
  white-space: nowrap;
}

.gb-admin-approval-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--gb-radius-pill);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-family: "JetBrains Mono", "SF Mono", menlo, monospace;
}

.gb-admin-approval-badge--ok {
  background: rgba(0, 0, 0, 0.06);
  color: rgba(0, 0, 0, 0.55);
}

.gb-admin-approval-badge--pending {
  background: var(--gb-color-black);
  color: var(--gb-color-white);
}

.gb-admin-approval-badge--rejected {
  background: rgba(0, 0, 0, 0.08);
  color: rgba(0, 0, 0, 0.65);
  border: 1px dashed rgba(0, 0, 0, 0.25);
}

.gb-admin-access-pending {
  font-size: 0.8125rem;
  font-weight: 330;
  color: rgba(0, 0, 0, 0.45);
  font-style: italic;
}

.gb-admin-panel--members .gb-admin-table tbody tr.gb-admin-user-row--pending td {
  background-color: rgba(0, 0, 0, 0.03);
}

.gb-admin-panel--members .gb-admin-table tbody tr.gb-admin-user-row--pending:hover td {
  background-color: rgba(0, 0, 0, 0.05);
}

.gb-approval-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gb-space-2);
  align-items: center;
  justify-content: flex-end;
}

.gb-admin-actions-cell--approval {
  text-align: right;
}

.gb-admin-panel--approvals .gb-admin-table-wrap {
  margin-top: var(--gb-space-2);
}