@import url('https://fonts.googleapis.com/css2?family=Lora:wght@400;500;600;700&family=Raleway:wght@300;400;500;600;700&display=swap');

/* ===== CSS 变量 ===== */
:root {
  --clr-parchment: #f5e6c8;
  --clr-amber: #d4a574;
  --clr-ground: #262117;
  --clr-ground-light: #332d1f;
  --clr-ground-mid: #3d3426;
  --clr-amber-dark: #b8854e;
  --clr-amber-light: #e8c090;
  --clr-parchment-dim: #c8b99a;
  --clr-text: #f0ddb8;
  --clr-text-muted: #a89070;
  --ff-serif: 'Lora', Georgia, 'Times New Roman', serif;
  --ff-sans: 'Raleway', 'Helvetica Neue', Arial, sans-serif;
  --radius-card: 28px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.45), 0 2px 8px rgba(0,0,0,0.3);
  --shadow-card-hover: 0 16px 48px rgba(0,0,0,0.55), 0 4px 16px rgba(0,0,0,0.4);
  --header-h: 112px;
  --transition-std: 0.3s ease;
}

/* ===== 重置 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--ff-sans);
  background-color: var(--clr-ground);
  color: var(--clr-text);
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-amber); text-decoration: none; transition: color var(--transition-std); }
a:hover { color: var(--clr-amber-light); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ===== 胶片颗粒覆层 ===== */
.grain-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  animation: grainShift 0.15s steps(1) infinite;
}
@keyframes grainShift {
  0% { background-position: 0 0; }
  25% { background-position: -50px 30px; }
  50% { background-position: 20px -40px; }
  75% { background-position: -30px 60px; }
  100% { background-position: 40px -20px; }
}

/* ===== 漏光效果 ===== */
.light-leak {
  position: fixed;
  top: 0;
  right: -20%;
  width: 60%;
  height: 50%;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(ellipse at 80% 10%, rgba(212,165,116,0.08) 0%, rgba(245,230,200,0.04) 40%, transparent 70%);
  animation: lightLeakPulse 8s ease-in-out infinite alternate;
}
@keyframes lightLeakPulse {
  0% { opacity: 0.5; transform: scale(1) rotate(-5deg); }
  100% { opacity: 1; transform: scale(1.1) rotate(0deg); }
}

/* ===== 全局布局 ===== */
.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 240px 1fr;
  grid-template-rows: auto;
  gap: 40px;
  align-items: start;
}

/* ===== 头部 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(38,33,23,0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(212,165,116,0.2);
}
.header-brand-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 24px;
  border-bottom: 1px solid rgba(212,165,116,0.1);
}
.brand-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
}
.brand-mark { border-radius: 6px; }
.brand-name {
  font-family: var(--ff-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--clr-parchment);
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.brand-name:hover { color: var(--clr-amber); }

/* 搜索框 */
.header-search { display: flex; align-items: center; }
.search-form { display: flex; gap: 0; }
.search-input {
  background: rgba(245,230,200,0.08);
  border: 1px solid rgba(212,165,116,0.3);
  border-right: none;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  color: var(--clr-text);
  font-family: var(--ff-sans);
  font-size: 0.875rem;
  padding: 8px 14px;
  width: 200px;
  outline: none;
  transition: border-color var(--transition-std), background var(--transition-std);
}
.search-input::placeholder { color: var(--clr-text-muted); }
.search-input:focus { border-color: var(--clr-amber); background: rgba(245,230,200,0.12); }
.search-btn {
  background: var(--clr-amber);
  border: 1px solid var(--clr-amber);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--clr-ground);
  font-family: var(--ff-sans);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 8px 16px;
  min-height: 40px;
  min-width: 40px;
  transition: background var(--transition-std);
}
.search-btn:hover { background: var(--clr-amber-light); }

/* 汉堡 */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-std);
}
.hamburger:hover { background: rgba(212,165,116,0.15); }
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-amber);
  border-radius: 2px;
  transition: transform var(--transition-std), opacity var(--transition-std);
}
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 导航行 */
.header-nav-row {
  display: flex;
  gap: 4px;
  padding: 0 24px;
  overflow-x: auto;
  scrollbar-width: none;
}
.header-nav-row::-webkit-scrollbar { display: none; }
.nav-link {
  display: inline-block;
  color: var(--clr-parchment-dim);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: 10px 12px;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-std), border-color var(--transition-std);
  min-height: 40px;
}
.nav-link:hover { color: var(--clr-amber); border-bottom-color: var(--clr-amber); }

/* ===== 全屏遮罩菜单 ===== */
.fullscreen-menu {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(28,22,12,0.97);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}
.fullscreen-menu.is-open {
  opacity: 1;
  pointer-events: all;
}
.menu-close {
  position: absolute;
  top: 24px;
  right: 28px;
  color: var(--clr-amber);
  font-size: 1.8rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background var(--transition-std);
}
.menu-close:hover { background: rgba(212,165,116,0.15); }
.menu-nav { width: 100%; max-width: 560px; padding: 0 32px; }
.menu-dl { display: flex; flex-direction: column; gap: 4px; }
.menu-dl dt { border-bottom: 1px solid rgba(212,165,116,0.12); }
.overlay-link {
  display: block;
  font-family: var(--ff-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--clr-parchment);
  padding: 18px 8px;
  min-height: 56px;
  letter-spacing: 0.02em;
  transition: color var(--transition-std), padding-left var(--transition-std);
}
.overlay-link:hover { color: var(--clr-amber); padding-left: 20px; }

/* ===== 主内容区 ===== */
main {
  padding: 48px 0 64px;
  position: relative;
  z-index: 2;
}

/* ===== 侧边栏（左侧） ===== */
.sidebar {
  grid-column: 1;
  position: sticky;
  top: calc(var(--header-h) + 24px);
  background: var(--clr-ground-light);
  border: 1px solid rgba(212,165,116,0.18);
  border-radius: var(--radius-card);
  padding: 28px 24px;
}
.sidebar-title {
  font-family: var(--ff-serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-amber);
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}
.sidebar hr {
  border: none;
  border-top: 1px solid rgba(212,165,116,0.25);
  margin-bottom: 16px;
}
.sidebar-links { display: flex; flex-direction: column; gap: 4px; }
.sidebar-links li a {
  display: block;
  color: var(--clr-text-muted);
  font-size: 0.875rem;
  padding: 8px 10px;
  border-radius: 8px;
  min-height: 40px;
  line-height: 1.4;
  display: flex;
  align-items: center;
  transition: color var(--transition-std), background var(--transition-std);
}
.sidebar-links li a:hover { color: var(--clr-parchment); background: rgba(212,165,116,0.1); }
.sidebar-cta { margin-top: 20px; }

/* ===== 内容区 ===== */
.content-area { grid-column: 2; }

/* ===== Hero 区块（首页） ===== */
.hero-section {
  grid-column: 1 / -1;
  margin-bottom: 16px;
}
.hero-article {
  display: flex;
  align-items: center;
  gap: 48px;
  min-height: 70vh;
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}
.hero-article::after {
  content: '';
  position: absolute;
  top: -10%;
  right: 42%;
  width: 120px;
  height: 140%;
  background: linear-gradient(135deg, transparent 45%, rgba(212,165,116,0.12) 46%, rgba(245,230,200,0.06) 54%, transparent 55%);
  transform: skewX(-8deg);
  pointer-events: none;
}
.hero-text {
  flex: 1;
  min-width: 0;
  position: relative;
  z-index: 2;
}
.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--clr-amber);
  text-transform: uppercase;
  margin-bottom: 16px;
  font-family: var(--ff-sans);
}
.hero-h1 {
  font-family: var(--ff-serif);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--clr-parchment);
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.hero-lead {
  font-size: 1.05rem;
  color: var(--clr-text-muted);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 480px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-media {
  flex: 0 0 44%;
  max-width: 44%;
  position: relative;
  z-index: 2;
}
.hero-img {
  width: 100%;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  filter: sepia(0.15) contrast(1.05) saturate(0.85);
}
.hero-placeholder {
  aspect-ratio: 4/3;
  background: var(--clr-ground-mid);
  border-radius: var(--radius-card);
  border: 2px solid rgba(212,165,116,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
}
.film-frame {
  font-family: var(--ff-serif);
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  letter-spacing: 0.1em;
}
.hero-slash {
  position: absolute;
  top: 10%;
  left: -16px;
  width: 4px;
  height: 80%;
  background: linear-gradient(180deg, transparent, var(--clr-amber), transparent);
  border-radius: 2px;
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-amber);
  color: var(--clr-ground);
  font-family: var(--ff-sans);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  min-height: 48px;
  transition: background var(--transition-std), transform var(--transition-std), box-shadow var(--transition-std);
  box-shadow: 0 4px 16px rgba(212,165,116,0.3);
}
.btn-primary:hover {
  background: var(--clr-amber-light);
  color: var(--clr-ground);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(212,165,116,0.4);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--clr-amber);
  font-family: var(--ff-sans);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 13px 26px;
  border: 1.5px solid var(--clr-amber);
  border-radius: var(--radius-sm);
  min-height: 48px;
  transition: background var(--transition-std), color var(--transition-std);
}
.btn-ghost:hover { background: rgba(212,165,116,0.12); color: var(--clr-amber-light); }
.btn-block { display: flex; width: 100%; }

/* ===== Polaroid 卡片 ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  list-style: none;
}
.card-grid--sm { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.polaroid-card {
  background: var(--clr-ground-light);
  border-radius: var(--radius-card);
  border: 1px solid rgba(245,230,200,0.1);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-std), box-shadow var(--transition-std);
  overflow: hidden;
  position: relative;
}
.polaroid-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, rgba(245,230,200,0.04) 0%, transparent 60%);
  pointer-events: none;
}
.polaroid-card:hover {
  transform: translateY(-6px) rotate(0.5deg);
  box-shadow: var(--shadow-card-hover);
}
.polaroid-card--sm:hover { transform: translateY(-4px); }
.card-inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 28px 24px 24px;
  color: inherit;
  height: 100%;
}
.card-inner:hover { color: inherit; }
.card-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--clr-amber);
  text-transform: uppercase;
  font-family: var(--ff-sans);
}
.card-title {
  font-family: var(--ff-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-parchment);
  line-height: 1.4;
}
.card-desc {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  flex: 1;
}
.card-date {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  font-family: var(--ff-sans);
  letter-spacing: 0.04em;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid rgba(212,165,116,0.12);
  display: block;
}

/* ===== article 标题 ===== */
.section-title {
  font-family: var(--ff-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-parchment);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
article > h2 + hr,
.section-title + hr,
h2 + hr,
h3 + hr {
  border: none;
  border-top: 1px solid rgba(212,165,116,0.25);
  margin-bottom: 28px;
}
hr {
  border: none;
  border-top: 1px solid rgba(212,165,116,0.2);
  margin: 20px 0;
}

/* ===== 页面区块间距 ===== */
.featured-section,
.sub-pages-section,
.ranking-list-wrap {
  margin-top: 56px;
}

/* ===== 文章排版 ===== */
.article-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--clr-amber);
  text-transform: uppercase;
  font-family: var(--ff-sans);
  margin-bottom: 12px;
}
.article-h1 {
  font-family: var(--ff-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--clr-parchment);
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.article-meta {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.meta-date {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  font-family: var(--ff-sans);
  letter-spacing: 0.04em;
}
.article-hero {
  margin-bottom: 32px;
  border-radius: var(--radius-card);
  overflow: hidden;
}
.article-hero-img {
  width: 100%;
  border-radius: var(--radius-card);
  filter: sepia(0.1) contrast(1.05) saturate(0.85);
}

/* ===== 正文 prose ===== */
.prose {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--clr-text);
  font-family: var(--ff-sans);
}
.prose h2 {
  font-family: var(--ff-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--clr-parchment);
  margin: 2em 0 0.5em;
  letter-spacing: -0.01em;
}
.prose h3 {
  font-family: var(--ff-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--clr-amber-light);
  margin: 1.6em 0 0.4em;
}
.prose h2 + hr,
.prose h3 + hr {
  border: none;
  border-top: 1px solid rgba(212,165,116,0.2);
  margin-bottom: 1em;
}
.prose p { margin-bottom: 1.2em; }
.prose a { color: var(--clr-amber); border-bottom: 1px dotted rgba(212,165,116,0.4); }
.prose a:hover { color: var(--clr-amber-light); border-bottom-color: var(--clr-amber-light); }
.prose ul, .prose ol { margin: 0 0 1.2em 1.5em; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin-bottom: 0.5em; }
.prose blockquote {
  border-left: 3px solid var(--clr-amber);
  padding: 12px 20px;
  margin: 1.5em 0;
  background: rgba(212,165,116,0.06);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--clr-parchment-dim);
}
.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 0.9rem;
}
.prose th {
  background: var(--clr-ground-mid);
  color: var(--clr-amber);
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--clr-amber);
}
.prose td {
  padding: 10px 16px;
  border-bottom: 1px solid rgba(212,165,116,0.1);
  vertical-align: top;
}
.prose tr:hover td { background: rgba(212,165,116,0.04); }
.prose time { color: var(--clr-text-muted); font-size: 0.875em; }
.prose img { border-radius: var(--radius-sm); margin: 1em 0; }

/* ===== 排行榜 ===== */
.rank-list { display: flex; flex-direction: column; gap: 12px; list-style: none; }
.rank-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background: var(--clr-ground-light);
  border: 1px solid rgba(212,165,116,0.12);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  transition: border-color var(--transition-std), transform var(--transition-std);
}
.rank-item:hover { border-color: rgba(212,165,116,0.35); transform: translateX(4px); }
.rank-num {
  font-family: var(--ff-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: rgba(212,165,116,0.35);
  line-height: 1;
  min-width: 40px;
  flex-shrink: 0;
  padding-top: 2px;
}
.rank-info { display: flex; flex-direction: column; gap: 6px; flex: 1; min-width: 0; }
.rank-title {
  font-family: var(--ff-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-parchment);
  line-height: 1.4;
}
.rank-title:hover { color: var(--clr-amber); }
.rank-desc {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
}
.rank-date {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  font-family: var(--ff-sans);
}

/* ===== 对比横幅 ===== */
.compare-vs-banner {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--clr-ground-mid);
  border: 1px solid rgba(212,165,116,0.2);
  border-radius: var(--radius-card);
  padding: 28px 32px;
  margin: 28px 0 36px;
}
.vs-label-a, .vs-label-b {
  flex: 1;
  font-family: var(--ff-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--clr-parchment);
  text-align: center;
}
.vs-divider {
  font-family: var(--ff-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--clr-amber);
  flex-shrink: 0;
}

/* ===== 相关文章 ===== */
.related-list { display: flex; flex-direction: column; gap: 8px; list-style: none; }
.related-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid rgba(212,165,116,0.1);
  transition: border-color var(--transition-std), background var(--transition-std);
  min-height: 40px;
}
.related-link:hover {
  border-color: rgba(212,165,116,0.3);
  background: rgba(212,165,116,0.06);
}
.related-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-parchment);
  line-height: 1.4;
}
.related-desc {
  font-size: 0.775rem;
  color: var(--clr-text-muted);
  line-height: 1.4;
}

/* ===== 文章区段结构 ===== */
.article-section,
.ranking-section,
.compare-section,
.faq-section,
.about-section,
.privacy-section,
.default-section {
  grid-column: 2;
}
.hero-section { grid-column: 1 / -1; }
.page-content-section { margin-bottom: 0; }

/* ===== 页脚 ===== */
.site-footer {
  background: var(--clr-ground-light);
  border-top: 1px solid rgba(212,165,116,0.15);
  margin-top: 80px;
  position: relative;
  z-index: 2;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px 40px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
}
.footer-brand {
  font-family: var(--ff-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--clr-parchment);
  margin-bottom: 10px;
}
.footer-tagline {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}
.footer-address {
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  font-style: normal;
  line-height: 1.6;
}
.footer-address a { color: var(--clr-amber); }
.footer-address a:hover { color: var(--clr-amber-light); }
.footer-col-title {
  font-family: var(--ff-serif);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--clr-amber);
  margin-bottom: 16px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.footer-dl { display: flex; flex-direction: column; gap: 2px; }
.footer-dl dt a {
  display: block;
  color: var(--clr-text-muted);
  font-size: 0.875rem;
  padding: 6px 0;
  min-height: 40px;
  display: flex;
  align-items: center;
  transition: color var(--transition-std);
}
.footer-dl dt a:hover { color: var(--clr-parchment); }
.footer-link-list { display: flex; flex-direction: column; gap: 2px; }
.footer-link-list li a {
  display: flex;
  align-items: center;
  color: var(--clr-text-muted);
  font-size: 0.875rem;
  padding: 6px 0;
  min-height: 40px;
  transition: color var(--transition-std);
}
.footer-link-list li a:hover { color: var(--clr-parchment); }
.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  border-top: 1px solid rgba(212,165,116,0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-copy { font-size: 0.8rem; color: var(--clr-text-muted); }
.footer-bottom-links {
  display: flex;
  gap: 20px;
  list-style: none;
}
.footer-bottom-links li a {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  transition: color var(--transition-std);
}
.footer-bottom-links li a:hover { color: var(--clr-amber); }

/* ===== 滚动揭示动画 ===== */
.stagger-item {
  opacity: 0;
  transform: translateY(24px);
  animation: staggerFadeUp 0.5s ease forwards;
  animation-delay: calc(var(--i, 0) * 0.08s + 0.1s);
}
@keyframes staggerFadeUp {
  to { opacity: 1; transform: translateY(0); }
}
.reveal-section {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== VHS 追踪效果（轻微） ===== */
@keyframes vhsTrack {
  0%, 94%, 100% { clip-path: none; transform: none; }
  95% { clip-path: inset(30% 0 60% 0); transform: translateX(4px) skewX(0.5deg); }
  97% { clip-path: inset(60% 0 20% 0); transform: translateX(-3px) skewX(-0.3deg); }
}
.grain-overlay { animation: grainShift 0.15s steps(1) infinite, vhsTrack 12s ease-in-out infinite; }

/* ===== 移动端断点 ===== */
@media (max-width: 768px) {
  :root { --header-h: 96px; }

  .wrap {
    grid-template-columns: 1fr;
    padding: 0 16px;
    gap: 24px;
  }
  .sidebar {
    grid-column: 1;
    position: static;
    order: 2;
  }
  .hero-section,
  .article-section,
  .ranking-section,
  .compare-section,
  .faq-section,
  .about-section,
  .privacy-section,
  .default-section,
  .content-area {
    grid-column: 1;
  }
  .hero-article {
    flex-direction: column;
    min-height: auto;
    padding: 32px 0;
    gap: 32px;
  }
  .hero-media { flex: none; max-width: 100%; width: 100%; }
  .hero-text { order: 1; }
  .hero-media { order: 2; }
  .hero-h1 { font-size: 1.7rem; }
  .hero-cta { flex-direction: column; }
  .btn-primary, .btn-ghost { width: 100%; justify-content: center; }

  .header-brand-row { padding: 12px 16px; gap: 12px; }
  .header-search { flex: 1; }
  .search-input { width: 100%; min-width: 0; }
  .header-nav-row { padding: 0 16px; gap: 0; }
  .nav-link { padding: 10px 8px; font-size: 0.78rem; }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 16px 28px;
  }
  .footer-bottom { padding: 16px; }

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

  .compare-vs-banner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
    padding: 20px;
  }

  main { padding: 24px 0 40px; }
}

@media (max-width: 480px) {
  .brand-name { font-size: 1.1rem; }
  .article-h1 { font-size: 1.4rem; }
  .overlay-link { font-size: 1.05rem; padding: 14px 8px; }
  .prose table { font-size: 0.8rem; }
  .prose th, .prose td { padding: 8px 10px; }
}

/* ===== prefers-reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .stagger-item { opacity: 1; transform: none; }
  .reveal-section { opacity: 1; transform: none; }
  .grain-overlay { animation: none; }
  .light-leak { animation: none; }
}