/* forzm-doc · 简洁文档页 + 登录态顶栏控件 */

:root,
html[data-theme="light"] {
  color-scheme: light;
  --bg: #ffffff;
  --text: #111111;
  --muted: #666666;
  --accent: #0052cc;
  --border: #e5e5e5;
  --chip-bg: #f3f4f6;
  --chip-border: #e5e5e5;
  --panel-bg: #ffffff;
  --panel-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  --item-hover: rgba(0, 0, 0, 0.04);
  --item-active: rgba(0, 82, 204, 0.1);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #000000;
  --text: #eeeeee;
  --muted: #999999;
  --accent: #0052cc;
  --border: #333333;
  --chip-bg: #1a1a1a;
  --chip-border: #333333;
  --panel-bg: #141414;
  --panel-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  --item-hover: rgba(255, 255, 255, 0.06);
  --item-active: rgba(0, 82, 204, 0.16);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
}

body {
  font-family:
    "PingFang SC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    system-ui,
    -apple-system,
    sans-serif;
  font-size: 15px;
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
  max-width: 42rem;
  margin: 0 auto;
  padding: 0.75rem 1rem 0;
}

.doc-icon-btn {
  margin: 0;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--chip-border);
  border-radius: 0.6875rem;
  background: var(--chip-bg);
  color: var(--text);
  cursor: pointer;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

.doc-icon-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.doc-icon-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.doc-icon-btn-img {
  display: block;
  width: 1.375rem;
  height: 1.375rem;
  object-fit: contain;
}

.locale-dd {
  position: relative;
  flex-shrink: 0;
}

.locale-dd-trigger {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 0.625rem;
  min-height: 2.5rem;
  border-radius: 0.6875rem;
  border: 1px solid var(--chip-border);
  background: var(--chip-bg);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

.locale-dd-trigger:hover {
  border-color: var(--accent);
}

.locale-dd-trigger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.locale-dd-trigger-label {
  max-width: 7.5rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.locale-dd-chev {
  flex-shrink: 0;
  display: block;
  width: 0.875rem;
  height: 0.875rem;
  margin-left: -0.125rem;
  opacity: 0.75;
  color: var(--text);
  transition: transform 0.18s ease;
}

.locale-dd.is-open .locale-dd-chev {
  transform: rotate(180deg);
}

.locale-dd-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.2rem;
  height: 1.2rem;
  padding: 0 0.25rem;
  border-radius: 0.375rem;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  background: rgba(0, 82, 204, 0.14);
  color: var(--accent);
}

html[data-theme="dark"] .locale-dd-badge {
  background: rgba(0, 82, 204, 0.22);
}

.locale-dd-panel {
  position: absolute;
  top: calc(100% + 0.375rem);
  right: 0;
  min-width: 100%;
  width: max-content;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  padding: 0.25rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  background: var(--panel-bg);
  box-shadow: var(--panel-shadow);
  z-index: 50;
}

.locale-dd-panel[hidden] {
  display: none !important;
}

.locale-dd-item {
  width: 100%;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5625rem 0.625rem;
  border: none;
  border-radius: 0.5rem;
  background: transparent;
  color: var(--text);
  font-size: 0.84rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background 0.12s ease;
}

.locale-dd-item:hover {
  background: var(--item-hover);
}

.locale-dd-item.is-active {
  background: var(--item-active);
}

.locale-dd-item-label {
  flex: 1;
  min-width: 0;
}

.locale-dd-check {
  width: 1rem;
  height: 1rem;
  color: var(--accent);
  object-fit: contain;
}

.locale-dd-check[hidden] {
  display: none !important;
}

.page {
  max-width: 42rem;
  margin: 0 auto;
  padding: 1rem 1rem 3rem;
}

h1 {
  margin: 0 0 0.4rem;
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.35;
}

.meta {
  margin: 0 0 1.25rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.meta span + span::before {
  content: "·";
  margin: 0 0.35rem;
}

.intro p {
  margin: 0 0 0.7rem;
}

.toc {
  margin: 0 0 1.5rem;
  padding: 0 0 1rem;
  border-bottom: 1px solid var(--border);
}

.toc h2 {
  margin: 0 0 0.4rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.toc ol {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.toc li + li {
  margin-top: 0.15rem;
}

.section {
  margin: 0 0 1.25rem;
  scroll-margin-top: 0.75rem;
}

.section h2 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

.section p {
  margin: 0 0 0.55rem;
}

.section ul,
.section ol {
  margin: 0 0 0.55rem;
  padding-left: 1.2rem;
}

.section li + li {
  margin-top: 0.25rem;
}

.footer-nav {
  margin-top: 1.5rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
  font-size: 0.88rem;
  color: var(--muted);
}

.home-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}

.home-list li {
  margin: 0 0 0.65rem;
}

.home-list a {
  font-weight: 500;
}

.home-list span {
  margin-left: 0.4rem;
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--muted);
}

@media (max-width: 640px) {
  .page {
    padding: 0.75rem 0.9rem 2.5rem;
  }

  h1 {
    font-size: 1.2rem;
  }
}