@import url('https://fonts.googleapis.com/css2?family=Lexend+Mega:wght@100..900&family=Public+Sans:wght@100..900&display=swap');

/* ===== 基础重置 ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #ffffff;
  --color-surface: #f5f5f5;
  --color-ink: #1f1f1f;
  --color-ink-muted: #555555;
  --color-ink-faint: #888888;
  --color-border: #e0e0e0;
  --color-accent: #1f1f1f;
  --color-accent-hover: #333333;
  --radius-card: 4px;
  --radius-bento: 20px;
  --shadow-card: 0 2px 8px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.10), 0 2px 6px rgba(0,0,0,0.06);
  --shadow-bento: 0 4px 6px rgba(0,0,0,0.05);
  --font-display: 'Lexend Mega', 'Public Sans', system-ui, sans-serif;
  --font-body: 'Public Sans', system-ui, -apple-system, sans-serif;
  --nav-h: 64px;
  --anchor-h: 44px;
  --max-content: 780px;
  --max-site: 1200px;
  --gap: 16px;
  --gap-lg: 32px;
  --gap-xl: 64px;
}

html {
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-ink);
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--color-ink);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

ul, ol, menu {
  list-style: none;
}

/* ===== 辅助 ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}

/* ===== 页面骨架 ===== */
.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== 导航 ===== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  height: var(--nav-h);
}

.nav-inner {
  max-width: var(--max-site);
  margin: 0 auto;
  padding: 0 var(--gap-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
}

.nav-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 4px;
  object-fit: contain;
}

.brand-text-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--color-ink);
  color: var(--color-bg);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 14px;
  border-radius: 4px;
  letter-spacing: -0.5px;
}

/* 导航结构：details > summary + menu > li > a */
.nav-details {
  position: relative;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  cursor: pointer;
  padding: 10px;
  list-style: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: transparent;
}

.nav-toggle::-webkit-details-marker { display: none; }

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-ink);
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}

.nav-details[open] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-details[open] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav-details[open] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-bento);
  box-shadow: var(--shadow-card-hover);
  padding: 8px;
  min-width: 260px;
  z-index: 200;
}

.nav-menu li a {
  display: block;
  padding: 10px 16px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-card);
  color: var(--color-ink);
  line-height: 1.4;
  transition: background 0.15s;
}

.nav-menu li a:hover,
.nav-menu li a[aria-current="page"] {
  background: var(--color-surface);
}

.nav-menu li a[aria-current="page"] {
  font-weight: 700;
}

@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }
  .nav-details {
    display: contents;
  }
  .nav-menu {
    position: static;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0;
    min-width: 0;
    border-radius: 0;
  }
  .nav-menu li a {
    padding: 8px 12px;
    font-size: 13px;
    border-radius: var(--radius-card);
    white-space: nowrap;
  }
}

/* ===== 锚点条 ===== */
.page-anchor-bar {
  position: sticky;
  top: var(--nav-h);
  z-index: 90;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  height: var(--anchor-h);
}

.anchor-inner {
  max-width: var(--max-site);
  margin: 0 auto;
  padding: 0 var(--gap-lg);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--gap);
  overflow-x: auto;
  scrollbar-width: none;
}

.anchor-inner::-webkit-scrollbar { display: none; }

.anchor-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ink-muted);
  text-decoration: none;
  white-space: nowrap;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid transparent;
  transition: all 0.15s;
}

.anchor-link:hover {
  color: var(--color-ink);
  background: var(--color-bg);
  border-color: var(--color-border);
}

/* ===== 主容器 ===== */
main {
  flex: 1;
}

.wrap {
  max-width: var(--max-site);
  margin: 0 auto;
  padding: var(--gap-xl) var(--gap-lg);
}

/* ===== 内容 + 侧边布局 ===== */
.content-with-aside {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap-lg);
  margin-top: var(--gap-xl);
}

@media (min-width: 900px) {
  .content-with-aside {
    grid-template-columns: 220px 1fr;
    align-items: start;
  }
}

/* ===== 侧边栏 ===== */
.site-aside {
  order: 2;
}

@media (min-width: 900px) {
  .site-aside {
    order: 0;
    position: sticky;
    top: calc(var(--nav-h) + var(--anchor-h) + 16px);
  }
}

.aside-inner {
  background: var(--color-surface);
  border-radius: var(--radius-bento);
  padding: var(--gap-lg);
  box-shadow: var(--shadow-bento);
}

.aside-heading {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: 12px;
}

.aside-subheading {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-top: 20px;
  margin-bottom: 10px;
}

.aside-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.aside-links li a {
  display: block;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-ink-muted);
  padding: 6px 8px;
  border-radius: var(--radius-card);
  line-height: 1.4;
  transition: background 0.15s, color 0.15s;
}

.aside-links li a:hover {
  background: var(--color-bg);
  color: var(--color-ink);
}

/* ===== 主内容区 ===== */
.main-content-area {
  display: flex;
  flex-direction: column;
  gap: var(--gap-xl);
  min-width: 0;
}

/* ===== Hero（首页）===== */
.hero-section {
  margin-bottom: var(--gap-xl);
  position: relative;
}

.hero-article {
  background: var(--color-surface);
  border-radius: var(--radius-bento);
  overflow: hidden;
  min-height: 70vh;
  display: flex;
  align-items: stretch;
  position: relative;
}

/* 点阵底纹 */
.hero-article::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, #c8c8c8 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  width: 100%;
  position: relative;
  z-index: 1;
}

@media (min-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-media {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  overflow: hidden;
  background: var(--color-border);
}

.hero-media-dot {
  background: var(--color-surface);
  position: relative;
}

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

.hero-body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--gap-xl) var(--gap-lg);
  text-align: right;
}

.hero-eyebrow {
  display: block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: 16px;
}

.hero-h1 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.15;
  color: var(--color-ink);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero-lead {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-ink-muted);
  margin-bottom: 28px;
  max-width: 36ch;
  margin-left: auto;
}

.hero-cta-row {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  min-height: 44px;
  background: var(--color-ink);
  color: var(--color-bg);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-radius: var(--radius-card);
  border: 2px solid var(--color-ink);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-bg);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  min-height: 44px;
  background: transparent;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-radius: var(--radius-card);
  border: 2px solid var(--color-ink);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.btn-ghost:hover {
  background: var(--color-ink);
  color: var(--color-bg);
}

/* ===== Bento 网格 ===== */
.bento-section {
  margin-top: var(--gap-xl);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-auto-rows: 200px;
  gap: var(--gap);
  margin-top: var(--gap-lg);
}

@media (min-width: 768px) {
  .bento-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.bento-card {
  background: var(--color-surface);
  border-radius: var(--radius-bento);
  box-shadow: var(--shadow-bento);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  position: relative;
}

.bento-card:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-card-hover);
}

.bento-span-2x2 {
  grid-column: span 2;
  grid-row: span 2;
}

.bento-span-2x1 {
  grid-column: span 2;
  grid-row: span 1;
}

.bento-span-1x1 {
  grid-column: span 1;
  grid-row: span 1;
}

.bento-card-link {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--gap-lg);
  height: 100%;
  text-decoration: none;
  color: var(--color-ink);
  position: relative;
}

/* 点阵底纹装饰 */
.bento-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, #b8b8b8 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.2;
  pointer-events: none;
}

.bento-card-type {
  display: block;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: 8px;
}

.bento-card-title {
  font-family: var(--font-display);
  font-size: clamp(0.85rem, 1.5vw, 1.1rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.bento-card-desc {
  font-size: 12px;
  line-height: 1.5;
  color: var(--color-ink-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.bento-card-arrow {
  position: absolute;
  top: var(--gap-lg);
  right: var(--gap-lg);
  font-size: 18px;
  color: var(--color-ink-faint);
  transition: transform 0.2s;
}

.bento-card:hover .bento-card-arrow {
  transform: translateX(4px);
}

/* ===== 页面标题区 ===== */
.page-header-section {
  margin-bottom: var(--gap-xl);
}

.page-header-article {
  padding: var(--gap-xl) 0 0;
  border-top: 3px solid var(--color-ink);
}

.page-meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.page-type-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  min-height: 28px;
  background: var(--color-ink);
  color: var(--color-bg);
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 2px;
}

.page-type-badge--ranking {
  background: #2a2a2a;
}

.page-type-badge--review {
  background: #3a3a3a;
}

.page-date,
.page-date-mod {
  font-size: 13px;
  color: var(--color-ink-faint);
  font-style: normal;
}

.page-h1 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin-bottom: 16px;
}

.page-lead {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-ink-muted);
  max-width: 56ch;
}

/* ===== 正文段落 ===== */
.content-section {
  min-width: 0;
}

.content-article {
  min-width: 0;
}

.prose {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-ink);
  max-width: var(--max-content);
}

.prose h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  margin-top: 2.5em;
  margin-bottom: 0.75em;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.prose h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-top: 2em;
  margin-bottom: 0.5em;
  line-height: 1.3;
}

.prose p {
  margin-bottom: 1.25em;
}

.prose ul, .prose ol {
  padding-left: 1.5em;
  margin-bottom: 1.25em;
}

.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }

.prose li {
  margin-bottom: 0.4em;
  line-height: 1.7;
}

.prose blockquote {
  border-left: 4px solid var(--color-ink);
  padding: 12px 20px;
  margin: 1.5em 0;
  background: var(--color-surface);
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  font-style: italic;
  color: var(--color-ink-muted);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 0.9rem;
  overflow-x: auto;
  display: block;
}

.prose th, .prose td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.prose th {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--color-surface);
}

.prose a {
  color: var(--color-ink);
  font-weight: 600;
}

.prose img {
  border-radius: var(--radius-card);
  margin: 1.5em 0;
  box-shadow: var(--shadow-card);
}

.prose time {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-ink-faint);
  display: inline-block;
  margin-bottom: 0.5em;
}

/* ===== 区块标题 ===== */
.section-heading {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  margin-bottom: var(--gap-lg);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ===== 相关卡片 ===== */
.related-section,
.ranking-related,
.compares-section,
.verdict-section,
.about-pages-section,
.privacy-nav-section,
.default-nav-section {
  margin-top: var(--gap-xl);
}

/* section > article×n 直接子元素结构 */
.related-section,
.ranking-related,
.compares-section,
.about-pages-section,
.privacy-nav-section,
.default-nav-section {
  display: block;
}

.related-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  margin-bottom: var(--gap);
  overflow: hidden;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.related-card:hover {
  transform: scale(1.01);
  box-shadow: var(--shadow-card-hover);
}

.related-card-link {
  display: block;
  padding: 20px 24px;
  text-decoration: none;
  color: var(--color-ink);
}

.related-card-type {
  display: block;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: 6px;
}

.related-card-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.related-card-desc {
  font-size: 0.875rem;
  line-height: 1.55;
  color: var(--color-ink-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 判决/结论卡片 ===== */
.verdict-card {
  background: var(--color-surface);
  border-radius: var(--radius-bento);
  padding: var(--gap-xl);
  border-left: 4px solid var(--color-ink);
}

.verdict-text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-ink-muted);
  margin-bottom: var(--gap-lg);
}

/* ===== About 页面特有 ===== */
.about-hero-section {
  margin-bottom: var(--gap-xl);
}

.about-hero-article {
  background: var(--color-ink);
  color: var(--color-bg);
  border-radius: var(--radius-bento);
  overflow: hidden;
  position: relative;
  min-height: 280px;
}

.about-hero-article::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.12) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
}

.about-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap-lg);
  padding: var(--gap-xl);
  position: relative;
  z-index: 1;
  align-items: center;
  min-height: 280px;
}

@media (min-width: 768px) {
  .about-hero-inner {
    grid-template-columns: auto 1fr;
  }
}

.about-brand-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.about-brand-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 8px;
}

.about-brand-name {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 900;
  color: var(--color-bg);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.about-hero-text .page-h1 {
  color: var(--color-bg);
}

.about-hero-text .page-lead {
  color: rgba(255,255,255,0.7);
}

/* ===== Review 页面 hero ===== */
.review-header {
  margin-bottom: var(--gap-xl);
}

.review-hero-media {
  margin-bottom: var(--gap-lg);
  border-radius: var(--radius-bento);
  overflow: hidden;
  max-height: 400px;
}

.review-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: var(--gap-xl);
}

/* footer > section×n 直接子元素 */
.site-footer {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

@media (min-width: 768px) {
  .site-footer {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: auto auto;
  }

  .footer-contact {
    grid-column: 1 / -1;
    border-bottom: 1px solid var(--color-border);
  }

  .footer-bottom {
    grid-column: 1 / -1;
    border-top: 1px solid var(--color-border);
  }
}

.site-footer > section {
  padding: var(--gap-xl) var(--gap-lg);
  border-bottom: 1px solid var(--color-border);
}

@media (min-width: 768px) {
  .site-footer > section {
    border-bottom: none;
    border-right: 1px solid var(--color-border);
  }

  .site-footer > section:last-of-type {
    border-right: none;
  }

  .footer-contact {
    border-bottom: 1px solid var(--color-border) !important;
    border-right: none !important;
  }
}

.footer-section-title {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-faint);
  margin-bottom: 16px;
}

.footer-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.footer-input {
  flex: 1;
  min-width: 200px;
  padding: 10px 16px;
  min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  font-family: var(--font-body);
  font-size: 14px;
  background: var(--color-bg);
  color: var(--color-ink);
  outline: none;
  transition: border-color 0.15s;
}

.footer-input:focus {
  border-color: var(--color-ink);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-links li a {
  font-size: 13px;
  color: var(--color-ink-muted);
  text-decoration: none;
  padding: 4px 0;
  display: block;
  min-height: 28px;
  line-height: 1.5;
  transition: color 0.15s;
}

.footer-links li a:hover {
  color: var(--color-ink);
}

.footer-bottom {
  padding: 20px var(--gap-lg);
  text-align: center;
}

.footer-bottom p {
  font-size: 12px;
  color: var(--color-ink-faint);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.04em;
}

/* ===== 动效：prefers-reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .bento-card:hover {
    transform: none;
  }

  .related-card:hover {
    transform: none;
  }
}

/* ===== 移动端适配 ===== */
@media (max-width: 767px) {
  :root {
    --gap-xl: 40px;
    --gap-lg: 20px;
  }

  .wrap {
    padding: var(--gap-xl) var(--gap);
  }

  .hero-article {
    min-height: 60vh;
  }

  .hero-body {
    padding: var(--gap-lg);
    text-align: left;
  }

  .hero-lead {
    margin-left: 0;
    max-width: 100%;
  }

  .hero-cta-row {
    justify-content: flex-start;
  }

  .bento-grid {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 160px;
  }

  .bento-span-2x2 {
    grid-column: span 2;
    grid-row: span 2;
  }

  .bento-span-2x1 {
    grid-column: span 2;
  }

  .nav-inner {
    padding: 0 var(--gap);
  }

  .anchor-inner {
    padding: 0 var(--gap);
  }

  .about-hero-inner {
    grid-template-columns: 1fr;
    min-height: 240px;
  }

  .footer-form {
    flex-direction: column;
  }

  .footer-input {
    min-width: 0;
  }

  .prose {
    font-size: 1rem;
  }

  .page-h1 {
    font-size: 1.5rem;
  }
}

/* ===== 375px 兼容 ===== */
@media (max-width: 400px) {
  .bento-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
  }

  .bento-span-2x2,
  .bento-span-2x1,
  .bento-span-1x1 {
    grid-column: span 1;
    grid-row: span 1;
    min-height: 160px;
  }

  .nav-menu {
    min-width: calc(100vw - 32px);
    right: -8px;
  }
}

/* ===== 隐私页特有 ===== */
.privacy-prose h2 {
  margin-top: 2em;
}

/* ===== 标题装饰 span ===== */
h2 > span,
h3 > span {
  display: inline;
}

.section-heading > span,
.aside-heading > span,
.aside-subheading > span,
.footer-section-title > span {
  display: inline;
}