/* ============================================================
   base — 全局基础样式
   ============================================================ */
:root {
  --color-bg: #f5f2eb;
  --color-text: #2d2d2d;
  --color-accent: #8b6f47;
  --color-link: #3a6b8c;
  --color-card: #e8e0d5;
  --color-white: #ffffff;
  --color-border: #d8d0c4;
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-sans: Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-card: 0 2px 8px rgba(45, 45, 45, 0.08);
  --transition: 0.25s ease;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--transition);
}

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* ============================================================
   layout — 全站布局骨架
   ============================================================ */
.site-header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-sans);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.5px;
}

.site-nav .nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 8px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.nav-link:hover {
  background-color: var(--color-card);
  color: var(--color-text);
}

.nav-item.is-current .nav-link,
.nav-link.is-current {
  color: var(--color-accent);
  font-weight: 700;
}

.nav-item.is-current .nav-link::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 4px;
  height: 2px;
  background-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

.site-footer {
  flex-shrink: 0;
  background-color: #ebe5da;
  border-top: 1px solid var(--color-border);
  margin-top: 64px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  font-size: 14px;
  color: var(--color-text);
}

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

.footer-bottom {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px 24px 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-site-name {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
}

.footer-copy {
  font-size: 13px;
  color: #6b655c;
}

/* ============================================================
   components — 通用组件
   ============================================================ */
.section-title {
  font-family: var(--font-sans);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 12px;
}

.section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 48px;
  height: 3px;
  background-color: var(--color-accent);
}

/* 面包屑 */
.breadcrumb {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px 24px 0;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

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

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

.breadcrumb-sep {
  color: #6b655c;
}

.breadcrumb-current {
  color: var(--color-text);
}

/* 内页标题区 */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.page-header {
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.page-title {
  font-family: var(--font-sans);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
  margin-bottom: 8px;
}

.page-description {
  font-size: 16px;
  color: #5b554d;
  max-width: 720px;
}

/* 图片通用约束 */
figure {
  margin: 0;
}

img {
  width: auto;
  height: auto;
}

/* ============================================================
   pages — 首页
   ============================================================ */
.home-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 首屏 hero */
.hero-module {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding: 56px 0 48px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-title {
  font-family: var(--font-sans);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
}

.hero-lead {
  font-size: 17px;
  color: #5b554d;
  max-width: 540px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.cta-link {
  display: inline-block;
  padding: 12px 28px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-white);
  background-color: var(--color-accent);
  border-radius: var(--radius-md);
  transition: background-color var(--transition);
}

.cta-link:hover {
  background-color: #7a5f3d;
  color: var(--color-white);
}

.cta-link.cta-secondary {
  color: var(--color-text);
  background-color: transparent;
  border: 1px solid var(--color-border);
}

.cta-link.cta-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.hero-figure {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.hero-image {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

/* 题材分类导航带 */
.category-strip {
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
}

.category-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag-item {
  display: inline-block;
  padding: 10px 20px;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-text);
  background-color: var(--color-card);
  border-radius: 999px;
  transition: background-color var(--transition), color var(--transition);
}

.tag-item:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* 最近更新 */
.recent-updates {
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
}

.update-groups {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.update-date {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.update-item {
  display: flex;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.update-item:last-child {
  border-bottom: none;
}

.cover-thumb {
  width: 72px;
  height: 96px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  background-color: var(--color-card);
}

.update-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.update-title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.5;
}

.update-status {
  font-size: 13px;
  color: var(--color-accent);
}

/* 人气榜单 */
.ranking-preview {
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
}

.ranking-list {
  display: grid;
  gap: 12px;
}

.ranking-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  transition: box-shadow var(--transition);
}

.ranking-item:hover {
  box-shadow: var(--shadow-card);
}

.ranking-rank {
  font-family: var(--font-sans);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 48px;
  text-align: center;
  flex-shrink: 0;
}

.ranking-content {
  flex: 1;
}

.ranking-name {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.ranking-reason {
  font-size: 14px;
  color: #5b554d;
  line-height: 1.6;
}

/* 阅读指南入口 */
.guide-entry {
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
}

.guide-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.guide-card {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow var(--transition);
}

.guide-card:hover {
  box-shadow: var(--shadow-card);
}

.guide-card-title {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}

.guide-card-text {
  font-size: 15px;
  color: #5b554d;
  flex: 1;
}

.guide-link {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  display: inline-block;
  margin-top: 4px;
}

.guide-link:hover {
  text-decoration: underline;
}

/* 专题卡 */
.featured-topics {
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
}

.topic-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.topic-card {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition);
}

.topic-card:hover {
  box-shadow: var(--shadow-card);
}

.topic-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.topic-title {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  padding: 16px 20px 4px;
}

.topic-excerpt {
  font-size: 14px;
  color: #5b554d;
  padding: 0 20px;
  flex: 1;
}

.topic-link {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  padding: 12px 20px 16px;
}

.topic-link:hover {
  text-decoration: underline;
}

/* 版权与反馈说明 */
.copyright-note {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

.copyright-note p {
  font-size: 14px;
  color: #5b554d;
  max-width: 800px;
}

/* ============================================================
   pages — 分类页
   ============================================================ */
.category-list {
  padding-bottom: 40px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.category-card {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition);
}

.category-card:hover {
  box-shadow: var(--shadow-card);
}

.category-card-media {
  width: 100%;
  height: 160px;
  overflow: hidden;
}

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

.category-card-title {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  padding: 16px 20px 4px;
}

.category-card-desc {
  font-size: 14px;
  color: #5b554d;
  padding: 0 20px;
  flex: 1;
}

.category-card-link {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  padding: 12px 20px 16px;
}

.category-card-link:hover {
  text-decoration: underline;
}

.category-notes {
  padding: 40px 0;
  border-top: 1px solid var(--color-border);
}

.category-notes-intro {
  font-size: 15px;
  color: #5b554d;
  margin-bottom: 24px;
  max-width: 720px;
}

.notes-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.note-item {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 20px;
}

.note-item-title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.note-item-text {
  font-size: 14px;
  color: #5b554d;
}

/* ============================================================
   pages — 指南页
   ============================================================ */
.guide-section {
  padding: 32px 0;
  border-bottom: 1px solid var(--color-border);
}

.guide-section:last-of-type {
  border-bottom: none;
}

.content-media-inline {
  margin: 24px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.content-media-inline img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.content-media-inline figcaption {
  font-size: 13px;
  color: #6b655c;
  padding: 8px 12px;
  background-color: var(--color-card);
}

.section-lead {
  font-size: 15px;
  color: #5b554d;
  margin-bottom: 24px;
  max-width: 720px;
}

.guide-steps {
  display: grid;
  gap: 16px;
  counter-reset: step-counter;
}

.guide-step {
  counter-increment: step-counter;
  display: flex;
  gap: 20px;
  padding: 20px;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  position: relative;
}

.guide-step::before {
  content: counter(step-counter);
  font-family: var(--font-sans);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 40px;
  text-align: center;
  line-height: 1.2;
}

.step-title {
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.step-text {
  font-size: 14px;
  color: #5b554d;
}

.related-links {
  padding: 40px 0;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.related-item a {
  display: block;
  padding: 16px 20px;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--color-text);
  transition: box-shadow var(--transition), color var(--transition);
}

.related-item a:hover {
  box-shadow: var(--shadow-card);
  color: var(--color-accent);
}

/* FAQ 组件（指南页） */
.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  padding: 16px 20px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question::after {
  content: '+';
  font-size: 20px;
  color: var(--color-accent);
  transition: transform var(--transition);
}

.faq-item.is-open .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  font-size: 14px;
  color: #5b554d;
  padding: 0 20px 16px;
}

/* 追更技巧卡片 */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.tip-card {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 20px;
}

.tip-title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.tip-text {
  font-size: 14px;
  color: #5b554d;
}

/* ============================================================
   pages — 长尾推荐页（恋爱 / 热血共用）
   ============================================================ */
.recommend-section {
  padding: 32px 0;
}

.section-intro {
  font-size: 15px;
  color: #5b554d;
  margin-bottom: 24px;
  max-width: 720px;
}

.recommend-item {
  display: flex;
  gap: 24px;
  padding: 24px;
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  transition: box-shadow var(--transition);
}

.recommend-item:hover {
  box-shadow: var(--shadow-card);
}

.recommend-cover {
  width: 140px;
  height: 190px;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
}

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

.recommend-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.recommend-title {
  font-family: var(--font-sans);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}

.recommend-tags {
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--color-accent);
}

.recommend-desc {
  font-size: 14px;
  color: #5b554d;
}

.recommend-reason {
  font-size: 14px;
  color: var(--color-text);
  background-color: var(--color-bg);
  border-left: 3px solid var(--color-accent);
  padding: 8px 12px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.recommend-reason strong {
  font-family: var(--font-sans);
  color: var(--color-accent);
  margin-right: 4px;
}

/* 恋爱页 insight */
.insight-section {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

.insight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.insight-card {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 20px;
}

.insight-title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.insight-card p {
  font-size: 14px;
  color: #5b554d;
}

.related-section {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

.related-section p {
  font-size: 15px;
  color: #5b554d;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.related-section a {
  font-family: var(--font-sans);
  font-weight: 700;
}

/* 热血页 highlight */
.highlight-section {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

.highlight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.highlight-card {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: 20px;
}

.highlight-title {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.highlight-text {
  font-size: 14px;
  color: #5b554d;
}

.highlight-note {
  font-size: 15px;
  color: #5b554d;
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.highlight-note a {
  font-family: var(--font-sans);
  font-weight: 700;
}

/* ============================================================
   pages — 404 页
   ============================================================ */
.error-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 80px 24px;
  display: flex;
  justify-content: center;
}

.error-section {
  text-align: center;
  max-width: 560px;
}

.error-code {
  font-family: var(--font-sans);
  font-size: 80px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-family: var(--font-sans);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 16px;
  color: #5b554d;
  margin-bottom: 24px;
}

.error-btn {
  display: inline-block;
  padding: 12px 32px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-white);
  background-color: var(--color-accent);
  border-radius: var(--radius-md);
  transition: background-color var(--transition);
}

.error-btn:hover {
  background-color: #7a5f3d;
  color: var(--color-white);
}

.error-help {
  font-size: 14px;
  color: #5b554d;
  margin-top: 24px;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============================================================
   responsive — 响应式
   ============================================================ */
@media (max-width: 992px) {
  .hero-module {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 0 32px;
  }

  .hero-image {
    height: 280px;
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .guide-card-grid,
  .topic-grid {
    grid-template-columns: 1fr;
  }

  .notes-list {
    grid-template-columns: 1fr;
  }

  .related-list,
  .tips-grid,
  .insight-grid,
  .highlight-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-inner {
    min-height: 56px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    order: 3;
    width: 100%;
  }

  .site-nav .nav-list {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 8px 0 16px;
    border-top: 1px solid var(--color-border);
  }

  .site-nav .nav-list.is-open {
    display: flex;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    padding: 12px 8px;
    border-radius: 0;
  }

  .nav-item.is-current .nav-link::after {
    left: 8px;
    right: auto;
    width: 2px;
    height: auto;
    top: 8px;
    bottom: 8px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .section-title {
    font-size: 20px;
  }

  .recommend-item {
    flex-direction: column;
    gap: 16px;
  }

  .recommend-cover {
    width: 100%;
    height: 200px;
  }

  .ranking-item {
    gap: 12px;
    padding: 12px 16px;
  }

  .ranking-rank {
    font-size: 22px;
    min-width: 36px;
  }

  .breadcrumb {
    padding: 12px 16px 0;
  }

  .inner-main {
    padding: 0 16px;
  }

  .page-header {
    padding: 24px 0 20px;
    margin-bottom: 32px;
  }

  .page-title {
    font-size: 24px;
  }

  .home-main {
    padding: 0 16px;
  }

  .guide-step {
    flex-direction: column;
    gap: 8px;
  }

  .guide-step::before {
    min-width: auto;
    text-align: left;
  }
}

@media (max-width: 480px) {
  .category-grid {
    grid-template-columns: 1fr;
  }

  .related-list,
  .tips-grid,
  .insight-grid,
  .highlight-grid {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-link {
    text-align: center;
  }

  .hero-image {
    height: 220px;
  }

  .update-item {
    gap: 12px;
  }

  .cover-thumb {
    width: 60px;
    height: 80px;
  }

  .error-code {
    font-size: 56px;
  }

  .brand-name {
    font-size: 17px;
  }
}