@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 变量与根基
===================== */
:root {
  --cream: #f5e6c8;
  --amber: #d4a574;
  --ink: #262117;
  --ink-light: #4a3f2f;
  --ink-muted: #7a6a52;
  --amber-dark: #b8845a;
  --amber-light: #e8c99a;
  --cream-dark: #e8d4aa;
  --white: #fffdf7;

  --font-serif: 'Lora', Georgia, 'Times New Roman', serif;
  --font-sans: 'Raleway', 'Helvetica Neue', Arial, sans-serif;

  --radius-card: 18px;
  --radius-sm: 8px;
  --radius-btn: 6px;

  --space-xs: 0.4rem;
  --space-sm: 0.75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 5rem;

  --max-content: 1100px;
  --aside-w: 220px;

  --border-card: 1.5px solid var(--amber);
  --border-ui: 1px solid var(--amber-dark);
}

/* ===================== 
   重置
===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 18px; scroll-behavior: smooth; }
body {
  background-color: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.65;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--amber-dark); }
ul, ol { list-style: none; }

/* ===================== 
   胶片颗粒效果
===================== */
.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='grain'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23grain)' opacity='1'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  mix-blend-mode: multiply;
}

.light-leak {
  position: fixed;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212,165,116,0.18) 0%, rgba(245,230,200,0.08) 50%, transparent 70%);
  pointer-events: none;
  z-index: 1;
  animation: leakPulse 8s ease-in-out infinite alternate;
}

@keyframes leakPulse {
  0% { opacity: 0.6; transform: scale(1) translate(0, 0); }
  100% { opacity: 1; transform: scale(1.1) translate(-3%, 3%); }
}

@media (prefers-reduced-motion: reduce) {
  .light-leak { animation: none; }
  .grain-overlay { display: none; }
}

/* ===================== 
   Header / Nav
===================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--cream);
  border-bottom: var(--border-ui);
}

.header-brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 0.6rem var(--space-lg);
  border-bottom: 1px solid var(--amber-light);
  background-color: var(--ink);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.brand-logo {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--cream);
  letter-spacing: 0.02em;
}

.brand-name:hover { color: var(--amber); }

.header-tagline {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 300;
  color: var(--amber-light);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.8;
}

.site-nav {
  overflow-x: auto;
  scrollbar-width: none;
  background-color: var(--cream-dark);
}
.site-nav::-webkit-scrollbar { display: none; }

.site-nav > p {
  display: flex;
  flex-wrap: nowrap;
  gap: 0;
  padding: 0 var(--space-md);
  white-space: nowrap;
}

.site-nav > p > a {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem var(--space-md);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink-light);
  letter-spacing: 0.03em;
  border-right: 1px solid var(--amber-light);
  transition: background 0.2s, color 0.2s;
  min-height: 44px;
}
.site-nav > p > a:first-child { border-left: 1px solid var(--amber-light); }
.site-nav > p > a:hover,
.site-nav > p > a[aria-current="page"] {
  background-color: var(--amber);
  color: var(--ink);
}

/* ===================== 
   Hero（首页）
===================== */
.hero-section {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background-color: var(--ink);
  background-image:
    radial-gradient(circle at 20% 50%, rgba(212,165,116,0.12) 0%, transparent 50%),
    repeating-linear-gradient(0deg, transparent, transparent 28px, rgba(212,165,116,0.04) 28px, rgba(212,165,116,0.04) 29px),
    repeating-linear-gradient(90deg, transparent, transparent 28px, rgba(212,165,116,0.04) 28px, rgba(212,165,116,0.04) 29px);
}

.hero-collage {
  position: relative;
  width: 100%;
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  z-index: 2;
}

.hero-collage__grid {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  padding: var(--space-lg);
  opacity: 0.35;
  overflow: hidden;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: sepia(0.4) contrast(1.1) saturate(0.7);
}

.hero-img--1 {
  border-radius: var(--radius-card) 0 0 var(--radius-card);
  transform: rotate(-1.5deg) translateY(8%);
  border: 4px solid var(--amber);
}

.hero-img--2 {
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  transform: rotate(1.5deg) translateY(-8%);
  border: 4px solid var(--amber);
}

.hero-placeholder {
  background: linear-gradient(135deg, var(--ink-light), var(--amber-dark));
}

.hero-text {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: var(--space-xl) var(--space-lg);
  max-width: 700px;
  margin: 0 auto;
}

.hero-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  font-weight: 700;
  color: var(--cream);
  line-height: 1.2;
  margin-bottom: var(--space-md);
  text-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

.hero-desc {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--amber-light);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  font-weight: 300;
}

/* ===================== 
   按钮
===================== */
.btn-primary {
  display: inline-block;
  padding: 0.75rem 1.8rem;
  background-color: var(--amber);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-btn);
  border: 2px solid var(--amber-dark);
  letter-spacing: 0.05em;
  transition: background 0.2s, transform 0.15s;
  cursor: pointer;
  min-height: 44px;
  align-items: center;
}
.btn-primary:hover {
  background-color: var(--amber-dark);
  color: var(--cream);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-block;
  padding: 0.65rem 1.5rem;
  background-color: transparent;
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--radius-btn);
  border: 1.5px solid var(--amber);
  transition: background 0.2s, color 0.2s;
  min-height: 44px;
  align-items: center;
}
.btn-secondary:hover {
  background-color: var(--amber-light);
  color: var(--ink);
}

/* ===================== 
   页面主体 main
===================== */
.page-main {
  position: relative;
  z-index: 2;
}

/* ===================== 
   内页 Hero 横幅
===================== */
.page-hero-section {
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-light) 100%);
  padding: var(--space-xl) var(--space-lg);
  position: relative;
  overflow: hidden;
}

.page-hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, transparent, transparent 15px, rgba(212,165,116,0.05) 15px, rgba(212,165,116,0.05) 16px);
  pointer-events: none;
}

.page-hero-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.page-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--cream);
  line-height: 1.25;
  margin-bottom: var(--space-sm);
}

.page-desc {
  font-size: 0.95rem;
  color: var(--amber-light);
  font-weight: 300;
  max-width: 680px;
  line-height: 1.7;
}

.page-date {
  font-size: 0.78rem;
  color: var(--amber);
  margin-top: var(--space-sm);
  font-weight: 400;
  letter-spacing: 0.04em;
}

/* ===================== 
   内容区 + 侧边栏
===================== */
.content-section {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-lg);
}

.content-with-aside {
  display: grid;
  grid-template-columns: var(--aside-w) 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.page-aside {
  position: sticky;
  top: 100px;
}

.aside-inner {
  background-color: var(--white);
  border: var(--border-card);
  border-radius: var(--radius-card);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
}

.aside-eyebrow {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-dark);
  margin-bottom: 0.35rem;
}

.aside-title {
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--space-sm);
  border-bottom: 1px solid var(--amber-light);
  padding-bottom: var(--space-xs);
}

.aside-nav-list li { border-bottom: 1px solid var(--cream-dark); }
.aside-nav-list li:last-child { border-bottom: none; }
.aside-nav-list a {
  display: block;
  padding: 0.45rem 0;
  font-size: 0.78rem;
  color: var(--ink-light);
  font-weight: 400;
  line-height: 1.4;
  transition: color 0.15s, padding-left 0.15s;
}
.aside-nav-list a:hover {
  color: var(--amber-dark);
  padding-left: 4px;
}

.aside-related { margin-top: 0; }
.aside-sibling-cards { display: flex; flex-direction: column; gap: var(--space-xs); }

/* ===================== 
   主内容区
===================== */
.main-content { min-width: 0; }

/* ===================== 
   正文 Prose
===================== */
.prose {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--ink);
}

.prose h2 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ink);
  margin: 2em 0 0.6em;
  padding-bottom: 0.3em;
  border-bottom: 2px solid var(--amber-light);
}

.prose h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink-light);
  margin: 1.5em 0 0.5em;
}

.prose p { margin-bottom: 1em; }
.prose ul, .prose ol { margin: 1em 0 1em 1.5em; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li { margin-bottom: 0.4em; }

.prose strong { font-weight: 600; color: var(--ink); }
.prose em { font-style: italic; color: var(--ink-light); }

.prose a {
  color: var(--amber-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.prose a:hover { color: var(--ink); }

.prose blockquote {
  margin: 1.5em 0;
  padding: var(--space-md) var(--space-lg);
  border-left: 4px solid var(--amber);
  background-color: var(--cream-dark);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 0.9rem;
}
.prose th, .prose td {
  padding: 0.6em 0.8em;
  border: 1px solid var(--amber-light);
  text-align: left;
}
.prose th {
  background-color: var(--amber-light);
  font-weight: 600;
  font-family: var(--font-serif);
}
.prose tr:nth-child(even) { background-color: var(--cream-dark); }

.prose time {
  font-weight: 500;
  color: var(--amber-dark);
}

/* ===================== 
   眉题（small + h2 同级）
===================== */
small.eyebrow,
small.aside-eyebrow {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber-dark);
  margin-bottom: 0.3rem;
}

.section-header {
  margin-bottom: var(--space-lg);
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0;
}

/* ===================== 
   卡片（子页列表 / 排行 / 评测）
===================== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.cards-grid--col2 {
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.cards-section {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-lg) var(--space-lg);
}

/* 子页卡片 — a > strong + span  结构（契约要求） */
a.child-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-md);
  border: var(--border-card);
  border-radius: var(--radius-card);
  background-color: var(--white);
  color: var(--ink);
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
  text-decoration: none;
}

a.child-card:hover {
  border-color: var(--amber-dark);
  background-color: var(--cream-dark);
  transform: translateY(-2px);
  color: var(--ink);
}

a.child-card > strong {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.35;
  display: block;
}

a.child-card > span {
  font-size: 0.78rem;
  color: var(--ink-muted);
  line-height: 1.5;
  font-weight: 300;
}

.card-date time {
  font-size: 0.72rem;
  color: var(--amber-dark);
}

a.child-card--sm {
  padding: var(--space-sm) var(--space-md);
}
a.child-card--sm > strong {
  font-size: 0.82rem;
}

/* ===================== 
   子页卡片区
===================== */
.child-cards-area {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--amber-light);
}

.child-cards-area h2 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: var(--space-md);
}

/* ===================== 
   Review 页面
===================== */
.review-header-section {
  background: linear-gradient(160deg, var(--ink) 0%, var(--ink-light) 100%);
  padding: var(--space-xl) var(--space-lg);
  position: relative;
  overflow: hidden;
}

.review-header-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--amber), var(--amber-dark), var(--amber));
}

.review-header-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.review-hero-wrap.polaroid-frame {
  border: 4px solid var(--cream);
  padding: var(--space-xs);
  background: var(--cream);
  border-radius: 4px;
  box-shadow: 3px 3px 0 var(--amber-dark);
  transform: rotate(-2deg);
  width: 180px;
  flex-shrink: 0;
}

.review-hero-img {
  width: 180px;
  height: 160px;
  object-fit: cover;
  filter: sepia(0.3) contrast(1.05) saturate(0.75);
  display: block;
}

.review-header-text { padding-top: var(--space-sm); }

.review-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.35rem, 3.5vw, 2rem);
  font-weight: 700;
  color: var(--cream);
  line-height: 1.25;
  margin-bottom: var(--space-sm);
}

.review-desc {
  font-size: 0.9rem;
  color: var(--amber-light);
  line-height: 1.7;
  font-weight: 300;
  max-width: 600px;
}

.review-meta {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-sm);
  flex-wrap: wrap;
}

.review-meta span {
  font-size: 0.75rem;
  color: var(--amber);
  font-weight: 400;
}

.review-meta time { color: var(--amber-light); }

.back-to-cat {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--amber-light);
}

/* ===================== 
   Compare 页面
===================== */
.compare-banner {
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-light) 60%, var(--amber-dark) 100%);
  padding: var(--space-xl) var(--space-lg);
  max-width: var(--max-content);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.compare-header-section {
  overflow: hidden;
  position: relative;
}

.compare-header-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent, transparent 20px,
    rgba(212,165,116,0.06) 20px, rgba(212,165,116,0.06) 21px
  );
}

.compare-badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  background-color: var(--amber);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

.compare-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  font-weight: 700;
  color: var(--cream);
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}

.compare-desc {
  font-size: 0.92rem;
  color: var(--amber-light);
  font-weight: 300;
  max-width: 640px;
  line-height: 1.7;
}

.compare-cta-area {
  margin-top: var(--space-xl);
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  padding-top: var(--space-md);
  border-top: 1px solid var(--amber-light);
}

/* ===================== 
   About 页面
===================== */
.about-header-section {
  background: var(--ink);
  padding: var(--space-xl) var(--space-lg);
}

.about-header-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.about-logo-wrap { flex-shrink: 0; }

.about-logo {
  width: 120px;
  height: 120px;
  object-fit: contain;
  border-radius: var(--radius-card);
  border: 3px solid var(--amber);
}

.about-logo-placeholder {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-card);
  background: linear-gradient(135deg, var(--amber-dark), var(--amber));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--ink);
  border: 3px solid var(--amber-dark);
}

.about-h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  color: var(--cream);
  margin-bottom: var(--space-sm);
}

.about-desc {
  color: var(--amber-light);
  font-size: 0.92rem;
  font-weight: 300;
  line-height: 1.7;
  max-width: 600px;
}

.about-featured {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--amber-light);
}

.about-featured h2 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--ink);
}

/* ===================== 
   面包屑
===================== */
.breadcrumb {
  max-width: var(--max-content);
  margin: 0 auto var(--space-md);
  font-size: 0.75rem;
  color: var(--amber-light);
  padding: var(--space-sm) 0 0;
}

.breadcrumb a { color: var(--amber); }
.breadcrumb a:hover { color: var(--cream); }
.breadcrumb span[aria-current] { color: var(--cream); }

/* ===================== 
   FAQ prose — 定制
===================== */
.faq-prose details {
  border: var(--border-card);
  border-radius: var(--radius-card);
  margin-bottom: var(--space-md);
  background: var(--white);
  overflow: hidden;
}

.faq-prose summary {
  padding: var(--space-md) var(--space-lg);
  font-weight: 600;
  font-family: var(--font-serif);
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  position: relative;
}

.faq-prose summary::after {
  content: '＋';
  position: absolute;
  right: var(--space-md);
  top: 50%;
  transform: translateY(-50%);
  color: var(--amber-dark);
  font-size: 1.1rem;
}

.faq-prose details[open] summary::after { content: '－'; }

/* ===================== 
   Footer
===================== */
.site-footer {
  border-top: 2px solid var(--amber);
  background-color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-2xl);
  position: relative;
  z-index: 2;
}

.site-footer div { display: contents; }

.footer-copy span {
  font-size: 0.72rem;
  color: var(--ink-muted);
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--amber-light);
  opacity: 0.75;
}

.footer-links {
  display: flex !important;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.75rem;
  color: var(--amber);
  font-weight: 400;
  padding: 0.3rem 0;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  letter-spacing: 0.03em;
}

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

/* ===================== 
   Stagger 动效
===================== */
@media (prefers-reduced-motion: no-preference) {
  .cards-grid a.child-card {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.45s ease forwards;
  }

  .cards-grid a.child-card:nth-child(1) { animation-delay: 0.05s; }
  .cards-grid a.child-card:nth-child(2) { animation-delay: 0.12s; }
  .cards-grid a.child-card:nth-child(3) { animation-delay: 0.19s; }
  .cards-grid a.child-card:nth-child(4) { animation-delay: 0.26s; }
  .cards-grid a.child-card:nth-child(5) { animation-delay: 0.33s; }
  .cards-grid a.child-card:nth-child(6) { animation-delay: 0.40s; }

  @keyframes fadeUp {
    to { opacity: 1; transform: translateY(0); }
  }

  .prose { animation: fadeIn 0.5s ease; }
  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
}

/* ===================== 
   响应式断点
===================== */
@media (max-width: 900px) {
  .content-with-aside {
    grid-template-columns: 1fr;
  }
  .page-aside {
    position: static;
  }
  .aside-inner { margin-bottom: var(--space-sm); }
  .hero-collage__grid { display: none; }
  .review-header-inner {
    grid-template-columns: 1fr;
  }
  .about-header-inner {
    flex-direction: column;
    gap: var(--space-lg);
  }
}

@media (max-width: 640px) {
  html { font-size: 17px; }

  :root {
    --space-lg: 1.25rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
  }

  .header-brand-row {
    padding: 0.5rem var(--space-md);
  }

  .header-tagline { display: none; }

  .hero-section { min-height: 60vh; }
  .hero-text { padding: var(--space-lg) var(--space-md); }

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

  .page-hero-section { padding: var(--space-lg) var(--space-md); }
  .content-section { padding: var(--space-lg) var(--space-md); }
  .cards-section { padding: var(--space-md) var(--space-md); }

  .review-header-section { padding: var(--space-lg) var(--space-md); }
  .review-hero-wrap.polaroid-frame { width: 120px; }
  .review-hero-img { width: 120px; height: 110px; }

  .compare-banner { padding: var(--space-lg) var(--space-md); }
  .about-header-section { padding: var(--space-lg) var(--space-md); }

  .compare-cta-area { flex-direction: column; }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-md);
    margin-top: var(--space-xl);
  }

  .footer-links { gap: var(--space-sm); }

  .site-nav > p { padding: 0 var(--space-sm); }
  .site-nav > p > a { padding: 0.6rem var(--space-sm); font-size: 0.72rem; }
}

@media (max-width: 375px) {
  .brand-name { font-size: 1rem; }
  .hero-h1 { font-size: 1.5rem; }
}