@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url('/fonts/inter-var.woff2') format('woff2');
}

@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 500 700;
  font-display: swap;
  src: url('/fonts/space-grotesk-var.woff2') format('woff2');
}

@font-face {
  font-family: 'Space Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('/fonts/space-mono-400.woff2') format('woff2');
}

@font-face {
  font-family: 'Space Mono';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('/fonts/space-mono-700.woff2') format('woff2');
}

:root {
  --bg-color: #16191b;
  --surface-color: #1f2427;
  --surface-hover: #262c30;

  --accent-color: #dca842;
  --accent-muted: rgba(220, 168, 66, 0.12);
  --accent-glow: rgba(220, 168, 66, 0.4);

  --success-color: #568772;
  --success-muted: rgba(86, 135, 114, 0.12);

  --danger-color: #c95d4e;
  --danger-muted: rgba(201, 93, 78, 0.12);

  --text-primary: #e8ecef;
  --text-secondary: #828b94;
  --text-muted: #575e64;

  --border-color: #2b3236;
  --border-active: #3f474d;

  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: 'Space Mono', Monaco, Consolas, monospace;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  background-image: linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
  linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center top;
}

::selection {
  background-color: var(--accent-color);
  color: var(--bg-color);
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 4px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: -0.01em;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-active);
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(22, 25, 27, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  height: 72px;
  display: flex;
  align-items: center;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  width: 32px;
  height: 32px;
  display: block;
  object-fit: contain;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  font-family: var(--font-display);
}

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

/* 当前所在页：全站导航恒定不变，靠高亮而非抽掉链接来标示位置 */
nav a.current {
  color: var(--accent-color);
}

.hero {
  padding: 80px 0 60px 0;
  position: relative;
}

.hero-grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.hero h1 {
  font-size: 3.2rem;
  line-height: 1.15;
  font-weight: 600;
}

.hero h1 span {
  display: block;
  color: var(--accent-color);
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.7;
  max-width: 640px;
}

.hero-action-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  background-color: var(--accent-color);
  color: var(--bg-color);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--accent-color);
  border-radius: 6px;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--accent-color);
  box-shadow: 0 0 20px var(--accent-muted);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  background-color: transparent;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: var(--transition);
}

.btn-secondary:hover {
  color: var(--text-primary);
  border-color: var(--border-active);
  background-color: rgba(255, 255, 255, 0.02);
}

.features-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-color);
}

.section-header {
  margin-bottom: 48px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-color);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 600;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  border-color: var(--border-active);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.feature-card-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 20px;
}

.feature-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.feature-icon-title-group {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.feature-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
}

.feature-card:hover .feature-icon-wrapper {
  background-color: rgba(255, 255, 255, 0.04);
}

.feature-title-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.feature-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  opacity: 0.5;
}

.feature-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-display);
}

.feature-divider {
  height: 1px;
  width: 100%;
  background-color: var(--border-color);
  margin: 4px 0;
}

.feature-quote {
  font-size: 0.85rem;
  line-height: 1.5;
  margin: 4px 0;
  font-family: var(--font-body);
}

.feature-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
}

.feature-card-amber .feature-icon-wrapper {
  color: var(--accent-color);
  border-color: rgba(220, 168, 66, 0.25);
}

.feature-card-amber .feature-num {
  color: var(--accent-color);
  opacity: 0.7;
}

.feature-card-amber .feature-divider {
  background: linear-gradient(90deg, rgba(220, 168, 66, 0.25) 0%, transparent 100%);
  height: 1px;
}

.feature-card-amber .feature-quote {
  color: rgba(220, 168, 66, 0.95);
}

.feature-card-green .feature-icon-wrapper {
  color: var(--success-color);
  border-color: rgba(86, 135, 114, 0.25);
}

.feature-card-green .feature-num {
  color: var(--success-color);
  opacity: 0.7;
}

.feature-card-green .feature-divider {
  background: linear-gradient(90deg, rgba(86, 135, 114, 0.25) 0%, transparent 100%);
  height: 1px;
}

.feature-card-green .feature-quote {
  color: rgba(86, 135, 114, 0.95);
}

.feature-card-red .feature-icon-wrapper {
  color: var(--danger-color);
  border-color: rgba(201, 93, 78, 0.25);
}

.feature-card-red .feature-num {
  color: var(--danger-color);
  opacity: 0.7;
}

.feature-card-red .feature-divider {
  background: linear-gradient(90deg, rgba(201, 93, 78, 0.25) 0%, transparent 100%);
  height: 1px;
}

.feature-card-red .feature-quote {
  color: rgba(201, 93, 78, 0.95);
}

.feature-card-gray .feature-icon-wrapper {
  color: var(--text-secondary);
  border-color: var(--border-color);
}

.feature-card-gray .feature-num {
  color: var(--text-secondary);
  opacity: 0.7;
}

.feature-card-gray .feature-divider {
  background: linear-gradient(90deg, var(--border-color) 0%, transparent 100%);
  height: 1px;
}

.feature-card-gray .feature-quote {
  color: var(--text-primary);
}

.security-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-color);
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.security-card {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.security-card:hover {
  border-color: var(--border-active);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.security-card-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  gap: 20px;
}

.security-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.security-icon-title-group {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.security-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
  color: var(--success-color);
  border-color: rgba(86, 135, 114, 0.25);
}

.security-card:hover .security-icon-wrapper {
  background-color: rgba(255, 255, 255, 0.04);
}

.security-title-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.security-badge-mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--success-color);
  opacity: 0.7;
}

.security-card-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-display);
}

.security-divider-line {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, rgba(86, 135, 114, 0.25) 0%, transparent 100%);
  margin: 4px 0;
}

.security-card-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.65;
}


.download-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-color);
}

.download-panel-new {
  background-color: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.download-panel-new:hover {
  border-color: var(--border-active);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.download-panel-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.download-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.download-icon-title-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.download-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  flex-shrink: 0;
  color: var(--accent-color);
  border-color: rgba(220, 168, 66, 0.25);
}

.download-panel-new:hover .download-icon-wrapper {
  background-color: rgba(255, 255, 255, 0.04);
}

.download-title-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.download-badge-mono {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-color);
  opacity: 0.7;
}

.download-card-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-display);
}

.download-platform-info {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.download-divider-line {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, rgba(220, 168, 66, 0.25) 0%, transparent 100%);
  margin: 4px 0;
}

.download-body-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 48px;
}

.download-card-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.65;
  max-width: 600px;
}

.download-action-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

@media (max-width: 968px) {
  .download-header-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .download-platform-info {
    order: -1;
  }

  .download-body-content {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .download-action-buttons {
    width: 100%;
    flex-direction: column;
  }

  .download-action-buttons .btn-primary,
  .download-action-buttons .btn-secondary {
    width: 100%;
    text-align: center;
  }
}

footer {
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  background-color: var(--bg-color);
}

footer .container {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* 全站页脚导航：保证每个页面都能从任意页面到达，不留孤岛页面 */
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding-bottom: 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
}

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  transition: var(--transition);
}

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

.footer-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-left p {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.footer-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.footer-right a {
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.footer-right a:hover {
  color: var(--text-primary);
}

@media (max-width: 968px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .security-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 640px) {
  header {
    height: auto;
    padding: 16px 0;
  }

  header .container {
    flex-direction: column;
    gap: 16px;
  }

  nav {
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

  .btn-primary, .btn-secondary {
    width: 100%;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .footer-meta {
    flex-direction: column;
    gap: 20px;
    align-items: flex-start;
  }

  .footer-right {
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-delay: 0s !important;
    animation-duration: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   文档页（排障 / 安全说明 / 更新日志 / 常见问题）
   与首页共用配色与字体，但正文栏更窄以适合长文阅读。
   ============================================================ */

.doc-main {
  flex: 1;
  padding: 56px 0 96px;
}

.doc-container {
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 面包屑：既是给读者的位置提示，也是搜索引擎理解站点层级的内链 */
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

.breadcrumb a:hover {
  color: var(--accent-color);
}

.breadcrumb span {
  margin: 0 8px;
  opacity: 0.5;
}

.doc-header {
  padding-bottom: 28px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
}

.doc-header h1 {
  font-size: 2.1rem;
  line-height: 1.3;
  margin-bottom: 14px;
}

.doc-lead {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.75;
}

.doc-body h2 {
  font-size: 1.4rem;
  margin: 52px 0 18px;
  padding-left: 14px;
  border-left: 3px solid var(--accent-color);
  line-height: 1.4;
}

.doc-body h3 {
  font-size: 1.08rem;
  margin: 32px 0 12px;
  color: var(--text-primary);
}

.doc-body p {
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 16px;
}

.doc-body strong {
  color: var(--text-primary);
  font-weight: 600;
}

.doc-body ul,
.doc-body ol {
  color: var(--text-secondary);
  line-height: 1.85;
  margin: 0 0 18px;
  padding-left: 22px;
}

.doc-body li {
  margin-bottom: 8px;
}

.doc-body a {
  color: var(--accent-color);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-muted);
  transition: var(--transition);
}

.doc-body a:hover {
  border-bottom-color: var(--accent-color);
}

.doc-body code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--text-primary);
  word-break: break-all;
}

/* 排障条目：症状 → 原因 → 处理，三段固定结构 */
.case {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 26px 28px;
  margin-bottom: 20px;
}

.case-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.case-label-symptom {
  background: var(--danger-muted);
  color: var(--danger-color);
}

.case-label-cause {
  background: var(--accent-muted);
  color: var(--accent-color);
}

.case-label-fix {
  background: var(--success-muted);
  color: var(--success-color);
}

.case h3 {
  margin: 0 0 16px;
  font-size: 1.1rem;
}

.case-block {
  margin-bottom: 18px;
}

.case-block:last-child {
  margin-bottom: 0;
}

.case-block p,
.case-block ul {
  margin-bottom: 0;
}

/* 提示条：用于强调与正文并列但不属于流程的一句话 */
.callout {
  border-left: 3px solid var(--border-active);
  background: var(--surface-color);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  margin: 24px 0;
}

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

.callout-warn {
  border-left-color: var(--danger-color);
  background: var(--danger-muted);
}

.callout-note {
  border-left-color: var(--accent-color);
  background: var(--accent-muted);
}

/* 更新日志条目 */
.release {
  padding: 24px 0;
  border-bottom: 1px solid var(--border-color);
}

.release:last-child {
  border-bottom: none;
}

.release-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.release-ver {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--accent-color);
}

.release-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.release-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--success-muted);
  color: var(--success-color);
}

.release ul {
  margin-bottom: 0;
}

/* 常见问题条目 */
.qa {
  border-bottom: 1px solid var(--border-color);
  padding: 26px 0;
}

.qa:last-child {
  border-bottom: none;
}

.qa h3 {
  margin: 0 0 12px;
  font-size: 1.06rem;
  padding-left: 24px;
  position: relative;
}

.qa h3::before {
  content: 'Q';
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent-color);
}

.qa-answer {
  padding-left: 24px;
}

.qa-answer p:last-child,
.qa-answer ul:last-child {
  margin-bottom: 0;
}

/* 页内目录：长文档的跳转锚点，同时构成站内链接 */
.toc {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 22px 26px;
  margin-bottom: 44px;
}

.toc-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.toc ol {
  margin: 0;
  padding-left: 20px;
  color: var(--text-secondary);
}

.toc li {
  margin-bottom: 7px;
}

.toc li:last-child {
  margin-bottom: 0;
}

.toc a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
}

.toc a:hover {
  color: var(--accent-color);
}

/* 相关页面：文末互链，避免任何一页成为孤岛 */
.related {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--border-color);
}

.related-title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.related-card {
  display: block;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px 18px;
  text-decoration: none;
  transition: var(--transition);
}

.related-card:hover {
  background: var(--surface-hover);
  border-color: var(--border-active);
}

.related-card-name {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.related-card-desc {
  display: block;
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.5;
}

@media (max-width: 640px) {
  .doc-main {
    padding: 36px 0 64px;
  }

  .doc-header h1 {
    font-size: 1.6rem;
  }

  .doc-body h2 {
    font-size: 1.22rem;
    margin-top: 40px;
  }

  .case {
    padding: 20px;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }
}

/* 首页各区块末尾通向详情页的链接 */
.section-more {
  margin-top: 30px;
  text-align: center;
  font-size: 0.92rem;
  color: var(--text-secondary);
}

.section-more a {
  color: var(--accent-color);
  text-decoration: none;
  border-bottom: 1px solid var(--accent-muted);
  transition: var(--transition);
}

.section-more a:hover {
  border-bottom-color: var(--accent-color);
}

/* 更新日志条目类型标记，与客户端 changelog.json 的 type 字段一一对应 */
.log-entry {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 10px;
  color: var(--text-secondary);
  line-height: 1.8;
}

.log-entry:last-child {
  margin-bottom: 0;
}

.log-type {
  flex: none;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: 4px;
  white-space: nowrap;
}

.log-type-feature {
  background: var(--accent-muted);
  color: var(--accent-color);
}

.log-type-fix {
  background: var(--success-muted);
  color: var(--success-color);
}

.log-type-improve {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
}