/* ==========================================================================
   Permafrost Wiki — 主题样式
   设计方向：极夜资料库 / 冰雪蓝高光 / Cinzel 标题字
   生成时间：2026年9月29日
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计变量（默认深色，html[data-theme="light"] 覆盖为浅色）
   -------------------------------------------------------------------------- */
:root,
html[data-theme="dark"] {
  --bg: #071018;
  --bg-elev: #0b1923;
  --panel: #0e202c;
  --panel-2: #12313f;
  --line: #294756;
  --line-strong: #4b7a8d;
  --text: #eefaff;
  --text-dim: #9ab2bd;
  --ice: #b8f1ff;
  --ice-deep: #3c98b1;
  --cyan: #5ed1e7;
  --alert: #ff9e5d;
  --safe: #83e2bd;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);

  --radius: 8px;
  --radius-sm: 4px;
  --font-display: "Cinzel", "Noto Serif SC", "Songti SC", "Times New Roman", serif;
  --font-body: "Source Sans 3", "Noto Sans SC", "PingFang SC", "Segoe UI", sans-serif;
  --header-h: 64px;
  --toc-w: 220px;
  --container: 1180px;
  --focus: #b8f1ff;
}

html[data-theme="light"] {
  --bg: #edf8fb;
  --bg-elev: #f7fcfe;
  --panel: #ffffff;
  --panel-2: #e1f1f6;
  --line: #bddae3;
  --line-strong: #74a9bc;
  --text: #102734;
  --text-dim: #4f7380;
  --ice: #056c89;
  --ice-deep: #04556d;
  --cyan: #076e8b;
  --alert: #af5624;
  --safe: #176a53;
  --shadow: 0 14px 36px rgba(27, 78, 96, 0.14);
}

/* --------------------------------------------------------------------------
   2. 基础重置
   -------------------------------------------------------------------------- */
*,
::before,
::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--ice);
}

a:hover {
  color: var(--text);
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   3. 顶部导航
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: var(--header-h);
  padding: 10px 16px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: inherit;
  text-decoration: none;
  min-width: 0;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: linear-gradient(145deg, #14394a, #0b1923 55%, #102a38);
  border: 1px solid var(--ice-deep);
  color: var(--ice);
  font-family: var(--font-display);
  font-weight: 700;
  box-shadow: inset 0 0 0 1px rgba(184, 241, 255, 0.18);
}

.brand strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.04em;
  line-height: 1.1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand small {
  display: block;
  color: var(--text-dim);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  margin-left: 8px;
  min-width: 0;
}

.site-nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a[data-active="true"] {
  color: var(--text);
  border-bottom-color: var(--ice);
}

.header-tools {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-select,
.icon-button,
.nav-toggle,
.button,
.toc-toggle,
.back-to-top {
  font: inherit;
  cursor: pointer;
}

.lang-select {
  max-width: 130px;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 6px 8px;
}

.icon-button,
.nav-toggle {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  min-height: 36px;
  padding: 0 10px;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
}

/* --------------------------------------------------------------------------
   4. 按钮与徽标
   -------------------------------------------------------------------------- */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 700;
}

.button.primary {
  background: linear-gradient(180deg, #dffbff, var(--ice-deep));
  color: #071018;
  border-color: #d7f8ff;
}

.button.secondary {
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  color: var(--text);
  border-color: var(--line-strong);
}

.button.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.hero-facts span,
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 75%, transparent);
  color: var(--text-dim);
  font-size: 0.84rem;
  font-weight: 600;
}

.pill.live {
  color: #06231f;
  background: linear-gradient(#a5f0d0, #4ba883);
  border-color: #c5f8df;
}

.pill.link {
  color: var(--text);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   5. 首屏
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(320px, 52vw, 520px);
  display: grid;
  align-items: end;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

/* 换成自己的主视觉：把 assets/hero.jpg 放进 .hero-media 的 <img> 即可 */
.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1200px 520px at 78% 18%, rgba(94, 209, 231, 0.2), transparent 70%),
    radial-gradient(900px 480px at 18% 84%, rgba(184, 241, 255, 0.12), transparent 72%),
    linear-gradient(140deg, #102a38, #071018 62%, #0c2431);
}

html[data-theme="light"] .hero-media {
  background:
    radial-gradient(1200px 520px at 78% 18%, rgba(7, 110, 139, 0.14), transparent 70%),
    radial-gradient(900px 480px at 18% 84%, rgba(184, 241, 255, 0.5), transparent 72%),
    linear-gradient(140deg, #d9f0f6, #edf8fb 62%, #dff3f7);
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

.hero-shade {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(7, 16, 24, 0.92), rgba(7, 16, 24, 0.72) 42%, rgba(7, 16, 24, 0.28)),
    linear-gradient(0deg, rgba(7, 16, 24, 0.95), rgba(7, 16, 24, 0.2) 55%, rgba(7, 16, 24, 0.45));
}

html[data-theme="light"] .hero-shade {
  background:
    linear-gradient(90deg, rgba(237, 248, 251, 0.95), rgba(237, 248, 251, 0.78) 44%, rgba(237, 248, 251, 0.4)),
    linear-gradient(0deg, rgba(237, 248, 251, 0.96), rgba(237, 248, 251, 0.3) 55%, rgba(237, 248, 251, 0.5));
}

.hero-crystal {
  position: absolute;
  right: 8%;
  bottom: 12%;
  width: 120px;
  height: 120px;
  border-radius: 24px 8px 28px 10px;
  background: linear-gradient(145deg, rgba(184, 241, 255, 0.42), rgba(94, 209, 231, 0.08));
  border: 1px solid rgba(184, 241, 255, 0.42);
  transform: rotate(18deg);
  pointer-events: none;
  z-index: -1;
}

.hero-content {
  padding: 48px 0 40px;
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--ice);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1,
.content-section h2,
.status-copy h2 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.15;
  margin: 0 0 12px;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  max-width: 18ch;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.35);
}

.hero-intro {
  margin: 0 0 20px;
  color: var(--text);
  font-size: 1.05rem;
  max-width: 54ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* --------------------------------------------------------------------------
   6. 状态条
   -------------------------------------------------------------------------- */
.status-band {
  padding: 18px 0 8px;
}

.status-card {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 18px;
  align-items: center;
  padding: 18px 20px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(120deg, color-mix(in srgb, var(--panel-2) 88%, #153a4a), var(--panel));
  box-shadow: var(--shadow);
}

.status-copy h2 {
  font-size: clamp(1.25rem, 2vw, 1.6rem);
}

.status-copy p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.status-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

/* --------------------------------------------------------------------------
   7. 正文骨架 + 目录
   -------------------------------------------------------------------------- */
.content-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  width: min(100% - 32px, calc(var(--container) + var(--toc-w) + 32px));
  margin: 36px auto 72px;
}

.toc {
  display: none;
}

/* min-width: 0 很关键：正文里有 min-width 的宽表格，
   没有它网格项会被撑开，移动端就会出现横向滚动 */
.content-shell > * {
  min-width: 0;
}

.article.container {
  width: 100%;
  min-width: 0;
  max-width: 78ch;
  padding: 0;
}

.page-home .article.container {
  max-width: none;
}

/* Guide pages are a viewing surface, not a narrow prose article. */
body[data-page="guides"] .article.container {
  max-width: none;
}

.article-brief p {
  margin: 0 0 12px;
  color: var(--text-dim);
  max-width: 76ch;
}

.content-section {
  margin-bottom: 48px;
  padding-bottom: 12px;
  scroll-margin-top: calc(var(--header-h) + 16px);
}

.content-section > p {
  margin: 0 0 14px;
  max-width: 76ch;
}

.section-heading {
  margin-bottom: 12px;
}

.section-heading h2 {
  font-size: clamp(1.55rem, 2.5vw, 2rem);
}

.section-heading > p {
  margin: 0;
  color: var(--text-dim);
  max-width: 76ch;
}

/* --------------------------------------------------------------------------
   8. 内容组件
   -------------------------------------------------------------------------- */
.fact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
  margin: 18px 0 22px;
}

.fact-card {
  padding: 18px 18px 16px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--ice);
  background: linear-gradient(180deg, var(--panel), color-mix(in srgb, var(--panel-2) 70%, var(--panel)));
}

.fact-card span {
  display: block;
  color: var(--text-dim);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.fact-card strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--ice);
  line-height: 1.2;
}

.fact-card p {
  margin: 6px 0 0;
  color: var(--text-dim);
  font-size: 0.98rem;
}

.signal-list {
  margin: 0 0 16px;
  padding-left: 1.15rem;
  max-width: 68ch;
}

.signal-list li {
  margin-bottom: 8px;
}

.guide-link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.guide-link-grid a {
  display: block;
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s, transform 0.15s;
}

.guide-link-grid a:hover {
  border-color: var(--ice);
  transform: translateY(-1px);
}

.guide-link-grid span {
  display: inline-block;
  margin-bottom: 6px;
  color: var(--ice);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.guide-link-grid strong {
  display: block;
  font-size: 1.12rem;
  margin-bottom: 4px;
}

.guide-link-grid p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.98rem;
}

/* 新闻列表 */
.news-stack {
  display: grid;
  gap: 10px;
  margin: 14px 0 18px;
}

.news-card {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--panel), color-mix(in srgb, var(--panel-2) 55%, var(--panel)));
  transition: border-color 0.15s;
}

.news-card[hidden] {
  display: none;
}

.news-card:hover {
  border-left-color: var(--ice);
}

.news-card[data-featured="true"] {
  border-left-color: var(--ice);
}

.news-date {
  font-family: var(--font-display);
  color: var(--ice);
  font-size: 0.9rem;
  line-height: 1.3;
  padding-top: 2px;
}

.news-date small {
  display: block;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 4px;
}

.news-body h3 {
  margin: 0 0 6px;
  font-size: 1.2rem;
  line-height: 1.35;
}

.news-body h3 a {
  color: inherit;
  text-decoration: none;
}

.news-body h3 a:hover {
  color: var(--ice);
}

.news-body p {
  margin: 0 0 10px;
  color: var(--text-dim);
  font-size: 1rem;
}

.news-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.news-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 70%, var(--panel));
  color: var(--text-dim);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* 列表页工具栏：搜索 + 栏目切换整块吸顶 */
.list-toolbar {
  position: sticky;
  top: var(--header-h);
  z-index: 12;
  margin-bottom: 14px;
  padding-top: 10px;
  background: var(--bg);
}

.list-toolbar .database-controls {
  position: static;
  margin-bottom: 0;
}

/* 栏目切换条（新闻 / 资料库共用） */
.filter-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding: 2px 0 10px;
}

.filter-tabs button {
  flex: 0 0 auto;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 700;
}

.filter-tabs button:hover,
.filter-tabs button[data-active="true"] {
  color: var(--text);
  border-color: var(--line-strong);
  background: var(--panel);
}

/* 表格 */
.table-wrap {
  overflow-x: auto;
  margin: 14px 0 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}

th,
td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: color-mix(in srgb, var(--panel-2) 80%, var(--panel));
  color: var(--ice);
  font-size: 0.84rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

tr:last-child td {
  border-bottom: 0;
}

/* FAQ */
.faq-stack details {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  padding: 12px 14px;
  margin-bottom: 8px;
}

.faq-stack summary {
  cursor: pointer;
  font-weight: 700;
}

.faq-stack p {
  margin: 10px 0 0;
  color: var(--text-dim);
}

/* 视频位 */
.video-panel {
  position: relative;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background:
    radial-gradient(600px 300px at 50% 40%, rgba(184, 241, 255, 0.16), transparent 70%),
    linear-gradient(160deg, var(--panel-2), var(--panel));
  margin: 14px 0 18px;
  overflow: hidden;
}

.video-panel .button {
  position: relative;
  z-index: 1;
}

/* 版本时间线 */
.timeline {
  position: relative;
  margin: 14px 0 18px;
  padding-left: 22px;
  border-left: 1px solid var(--line-strong);
}

.timeline > article {
  position: relative;
  margin-bottom: 20px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.timeline > article::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 20px;
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: var(--ice);
  border: 2px solid var(--bg);
}

.timeline h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.timeline .timeline-meta {
  margin: 0 0 10px;
  color: var(--text-dim);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.timeline ul {
  margin: 0;
  padding-left: 1.1rem;
}

.timeline li {
  margin-bottom: 6px;
  font-size: 0.95rem;
}

/* 下一步导航 */
.next-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.next-grid a {
  display: block;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  color: inherit;
  text-decoration: none;
}

.next-grid a:hover {
  border-color: var(--ice);
}

.next-grid span {
  display: block;
  color: var(--ice);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

/* 广告位 */
.ad-slot-wrap {
  margin: 20px 0 24px;
}

.ad-label {
  display: block;
  margin-bottom: 6px;
  color: var(--text-dim);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.ad-slot {
  display: grid;
  place-items: center;
  min-height: 90px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--panel) 60%, transparent);
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   9. 资料库
   -------------------------------------------------------------------------- */
.database-masthead {
  position: relative;
  isolation: isolate;
  min-height: 240px;
  display: grid;
  align-items: end;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(140deg, #102a38, #071018 60%, #0d2936);
}

.database-masthead-shade {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(0deg, rgba(7, 16, 24, 0.95), rgba(7, 16, 24, 0.35) 70%);
}

html[data-theme="light"] .database-masthead {
  background: linear-gradient(140deg, #dff1f6, #f7fcfe 60%, #e4f5f8);
}

html[data-theme="light"] .database-masthead-shade {
  background: linear-gradient(0deg, rgba(237, 248, 251, 0.95), rgba(237, 248, 251, 0.35) 70%);
}

.database-masthead-copy {
  padding: 40px 0 28px;
  max-width: 680px;
}

.database-masthead h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  line-height: 1.15;
  margin: 0 0 10px;
}

.database-masthead-copy > p:last-child {
  margin: 0;
  color: var(--text-dim);
}

.database-tabs {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-elev) 94%, transparent);
  backdrop-filter: blur(10px);
}

.database-tabs .container {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-block: 9px;
}

.database-tabs a,
.database-tabs button {
  flex: 0 0 auto;
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 700;
}

.database-tabs a:hover,
.database-tabs a[data-active="true"],
.database-tabs button:hover,
.database-tabs button[data-active="true"] {
  color: var(--text);
  border-color: var(--line-strong);
  background: var(--panel);
}

.database-stat-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-block: 1px solid var(--line-strong);
  margin-bottom: 16px;
}

.database-stat-strip > div {
  padding: 14px 10px;
  border-right: 1px solid var(--line);
}

.database-stat-strip > div:last-child {
  border-right: 0;
}

.database-stat-strip strong,
.database-stat-strip span {
  display: block;
}

.database-stat-strip strong {
  color: var(--ice);
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.database-stat-strip span {
  color: var(--text-dim);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.database-controls {
  position: sticky;
  top: calc(var(--header-h) + 58px);
  z-index: 12;
  display: flex;
  align-items: end;
  gap: 10px;
  padding: 12px;
  margin-bottom: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--bg-elev) 95%, transparent);
  backdrop-filter: blur(10px);
}

.database-controls label {
  display: grid;
  gap: 4px;
}

.database-controls label:first-child {
  flex: 1 1 280px;
}

.database-controls label > span {
  color: var(--text-dim);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.database-controls input,
.database-controls select {
  width: 100%;
  min-height: 42px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  color: var(--text);
  font: inherit;
}

.database-controls output {
  min-width: 76px;
  padding-bottom: 8px;
  color: var(--ice);
  text-align: right;
  font-weight: 700;
}

.database-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.guide-video-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-bottom: 22px;
}

.guide-video {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--panel), color-mix(in srgb, var(--panel-2) 55%, var(--panel)));
}

.guide-video-copy {
  padding: 22px 24px 18px;
}

.guide-video-copy h3 {
  margin: 7px 0 8px;
  font-size: clamp(1.3rem, 2vw, 1.55rem);
  line-height: 1.25;
}

.guide-video-copy p:last-child {
  margin: 0;
  color: var(--text-dim);
  font-size: 1.04rem;
  line-height: 1.62;
}

.guide-video-frame {
  aspect-ratio: 16 / 9;
  background: var(--bg);
}

.guide-video-frame iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 640px) {
  .guide-video-copy { padding: 18px 18px 16px; }
}

.database-entity {
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--panel), color-mix(in srgb, var(--panel-2) 55%, var(--panel)));
  scroll-margin-top: calc(var(--header-h) + 128px);
}

.database-entity[hidden] {
  display: none;
}

.database-entity-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.database-entity-portrait {
  flex: 0 0 64px;
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  color: var(--ice);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
}

.database-entity h3 {
  margin: 0 0 4px;
  font-size: 1.2rem;
}

.database-entity > p,
.database-entity-head p {
  margin: 6px 0 0;
  color: var(--text-dim);
  font-size: 1rem;
}

.database-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.database-badges > span,
.database-rarity {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 70%, var(--panel));
  color: var(--text-dim);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.database-rarity.rarity-common {
  color: var(--text-dim);
}

.database-rarity.rarity-rare {
  color: var(--cyan);
  border-color: color-mix(in srgb, var(--cyan) 50%, var(--line));
}

.database-rarity.rarity-epic {
  color: #b48ae0;
  border-color: #6b4f96;
}

.database-rarity.rarity-legendary {
  color: var(--ice);
  border-color: var(--ice-deep);
}

.database-rarity.rarity-unique {
  color: var(--alert);
  border-color: color-mix(in srgb, var(--alert) 50%, var(--line));
}

.database-sources {
  margin-top: 10px;
  font-size: 0.9rem;
}

.database-sources summary {
  cursor: pointer;
  color: var(--text-dim);
  font-weight: 700;
}

.database-sources ul {
  margin: 8px 0 0;
  padding-left: 1.1rem;
}

.database-sources li {
  color: var(--text-dim);
  margin-bottom: 4px;
}

.database-empty {
  grid-column: 1 / -1;
  padding: 28px 14px;
  text-align: center;
  color: var(--text-dim);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
}

.database-empty[hidden] {
  display: none;
}

/* --------------------------------------------------------------------------
   10. 页脚 / 回到顶部
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-elev);
  padding: 28px 0 40px;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  justify-content: space-between;
}

.footer-grid strong {
  font-family: var(--font-display);
}

.footer-grid p {
  margin: 8px 0 0;
  color: var(--text-dim);
  max-width: 52ch;
  font-size: 0.92rem;
}

.footer-grid nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
}

.footer-grid nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-weight: 600;
}

.footer-grid nav a:hover {
  color: var(--text);
}

.back-to-top {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  color: var(--text);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.15s, transform 0.15s;
}

.back-to-top[data-visible="true"] {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

/* --------------------------------------------------------------------------
   11. 响应式
   -------------------------------------------------------------------------- */
@media (min-width: 1024px) {
  .content-shell {
    grid-template-columns: var(--toc-w) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-home .content-shell,
  .content-shell.no-toc {
    grid-template-columns: 1fr;
    width: min(100% - 32px, var(--container));
  }

  .toc {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 16px);
    width: var(--toc-w);
  }

  .toc-toggle {
    display: none;
  }

  .toc-panel {
    width: var(--toc-w);
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--panel);
  }

  .toc-panel strong {
    display: block;
    margin-bottom: 8px;
    color: var(--ice);
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .toc-panel a {
    display: block;
    width: 100%;
    padding: 6px 0;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .toc-panel a:hover,
  .toc-panel a[data-active="true"] {
    color: var(--text);
  }
}

@media (max-width: 1023px) {
  .toc {
    display: block;
    position: fixed;
    right: 12px;
    bottom: 64px;
    z-index: 28;
    width: auto;
  }

  .toc-toggle {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 12px;
    border-radius: 999px;
    border: 1px solid var(--line-strong);
    background: color-mix(in srgb, var(--panel) 94%, transparent);
    color: var(--text);
    box-shadow: var(--shadow);
  }

  .toc-panel {
    display: none;
    position: absolute;
    right: 0;
    bottom: 48px;
    width: min(260px, 100vw - 32px);
    max-height: 50vh;
    overflow: auto;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--panel);
    box-shadow: var(--shadow);
  }

  .toc[data-open="true"] .toc-panel {
    display: block;
  }

  .toc-panel strong {
    display: block;
    margin-bottom: 8px;
    color: var(--ice);
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
  }

  .toc-panel a {
    display: block;
    padding: 7px 0;
    color: var(--text-dim);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    margin: 0;
    padding: 12px 16px 16px;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
  }

  .site-nav[data-open="true"] {
    display: flex;
  }

  .site-nav a {
    padding: 10px 0;
    border-bottom: 1px solid var(--line);
  }

  .header-tools {
    margin-left: 0;
  }

  .status-card {
    grid-template-columns: 1fr;
  }

  .status-pills {
    justify-content: flex-start;
  }

  .database-controls {
    flex-wrap: wrap;
    position: static;
  }

  .database-grid,
  .database-stat-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .database-stat-strip > div:nth-child(2n) {
    border-right: 0;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 16.5px;
  }

  .site-header {
    gap: 10px;
  }

  .lang-select {
    max-width: 96px;
  }

  .hero-content {
    padding: 36px 0 28px;
  }

  .hero h1 {
    max-width: none;
  }

  .brand small {
    display: none;
  }

  .database-masthead-copy {
    padding: 28px 0 20px;
  }

  .database-grid,
  .database-stat-strip,
  .news-stack {
    grid-template-columns: 1fr;
  }

  .database-stat-strip > div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .news-card {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .news-date small {
    display: inline;
    margin-left: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  ::before,
  ::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   交互式地图（map.html）
   ========================================================================== */
.map-layout {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 20px;
  align-items: start;
}

.map-canvas {
  min-height: 520px;
  height: min(72vh, 720px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev);
  overflow: hidden;
}

/* Leaflet 自带字体和浅色背景，这里拉回站点的设计语言 */
.leaflet-container {
  background: var(--bg-elev);
  font-family: var(--font-body);
}
.leaflet-popup-content-wrapper,
.leaflet-popup-tip {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
}
.leaflet-popup-content { margin: 12px 14px; line-height: 1.6; }
.leaflet-container a.leaflet-popup-close-button { color: var(--text-dim); }
.leaflet-bar a {
  background: var(--panel);
  color: var(--text);
  border-bottom-color: var(--line);
}
.leaflet-bar a:hover { background: var(--bg-elev); color: var(--ice); }

.map-pop-coord { color: var(--text-dim); font-size: 0.85rem; }
.map-pop-check {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 10px;
  cursor: pointer;
}

.map-side { display: grid; gap: 14px; position: sticky; top: calc(var(--header-h) + 16px); }
.map-search {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  color: var(--text);
  font: inherit;
}
.map-search:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.map-filters { display: grid; gap: 8px; }
.map-filter {
  display: flex;
  gap: 9px;
  align-items: center;
  font-size: 0.92rem;
  cursor: pointer;
}
.map-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  flex: 0 0 auto;
}
.map-progress { margin: 0; color: var(--text-dim); font-size: 0.9rem; }
.map-actions { display: grid; gap: 8px; }
.map-actions .button { width: 100%; cursor: pointer; }
.map-error {
  margin: 0;
  padding: 24px;
  color: var(--alert);
  font-size: 0.95rem;
}

/* ==========================================================================
   配方计算器（calculator.html）
   ========================================================================== */
.calc-bar {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 24px;
}
.calc-field { display: grid; gap: 6px; font-size: 0.88rem; color: var(--text-dim); }
.calc-field select,
.calc-field input {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  color: var(--text);
  font: inherit;
  min-width: 190px;
}
.calc-field select:focus-visible,
.calc-field input:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.calc-table { width: 100%; border-collapse: collapse; margin: 10px 0 26px; }
.calc-table th,
.calc-table td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); }
.calc-table th { font-size: 0.8rem; color: var(--text-dim); font-weight: 600; }
.calc-table .num { text-align: right; font-variant-numeric: tabular-nums; }

.calc-tree {
  margin: 10px 0 26px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-elev);
  color: var(--text);
  font-size: 0.86rem;
  line-height: 1.7;
  overflow-x: auto;
}
.calc-empty { color: var(--text-dim); }

@media (max-width: 860px) {
  /* align-items 必须一起重置：上面的 grid 规则设了 start，在 flex 纵向布局里
     它的含义变成「横向收缩到内容宽度」，而地图容器没有内容，会塌成几像素宽，
     看起来像是地图没渲染出来。 */
  .map-layout {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
  }
  .map-canvas { order: 1; min-height: 340px; height: 58vh; }
  .map-side { order: 2; position: static; }
  .map-filters {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }
  .map-filter { flex: 0 0 auto; white-space: nowrap; }
  .map-actions { grid-template-columns: 1fr 1fr; }
  .calc-field select, .calc-field input { min-width: 0; width: 100%; }
  .calc-field { flex: 1 1 140px; }
}