/* ============================================================
   base — 基础变量、Reset、全局元素
   ============================================================ */
:root {
  --color-bg: #f5f9f0;
  --color-primary: #3a7d5c;
  --color-accent: #e8a838;
  --color-dark: #2d3e50;
  --color-white: #ffffff;
  --color-text: #33404e;
  --color-text-light: #6b7a88;
  --color-border: #dbe5d3;
  --color-card-bg: #ffffff;
  --color-footer-bg: #2d3e50;
  --color-footer-text: #c8d4c0;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-width: 1200px;
  --header-height: 68px;
  --radius: 8px;
  --shadow-card: 0 2px 8px rgba(45, 62, 80, 0.08);
  --shadow-card-hover: 0 6px 18px rgba(45, 62, 80, 0.12);
}

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

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #2c5f47;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-dark);
}

h1 {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 0.6rem;
}

h3 {
  font-size: 1.125rem;
  margin-bottom: 0.4rem;
}

p {
  margin-bottom: 0.75rem;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* ============================================================
   layout — 全站统一外壳布局
   ============================================================ */

/* 页头 */
.site-header {
  background-color: var(--color-white);
  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;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex-shrink: 0;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.brand-slogan {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 2px;
}

/* 主导航 */
.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  gap: 4px;
}

.nav-list li a {
  display: block;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-dark);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-list li a:hover {
  background-color: rgba(58, 125, 92, 0.1);
  color: var(--color-primary);
}

.nav-list li a.is-current {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* 汉堡按钮（桌面隐藏） */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-dark);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* 主内容 */
.site-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.home-main {
  padding-top: 0;
}

.inner-main {
  padding-top: 24px;
  padding-bottom: 48px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
  padding: 8px 0;
}

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

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb-sep {
  color: var(--color-text-light);
  font-size: 0.75rem;
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: 500;
}

/* 页标题区 */
.page-header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.page-title {
  font-size: 1.875rem;
  margin-bottom: 8px;
}

.page-description {
  font-size: 1rem;
  color: var(--color-text-light);
  max-width: 720px;
  line-height: 1.7;
}

/* 页脚 */
.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  margin-top: 48px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px 24px;
}

.footer-brand {
  margin-bottom: 28px;
}

.footer-brand-name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 6px;
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--color-footer-text);
  max-width: 640px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 28px;
}

.footer-link-group h3 {
  font-size: 0.95rem;
  color: var(--color-white);
  margin-bottom: 10px;
}

.footer-link-group ul li {
  margin-bottom: 6px;
}

.footer-link-group ul li a {
  color: var(--color-footer-text);
  font-size: 0.875rem;
}

.footer-link-group ul li a:hover {
  color: var(--color-white);
}

.footer-copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 16px;
  font-size: 0.8125rem;
  color: rgba(200, 212, 192, 0.75);
}

/* ============================================================
   components — 通用组件
   ============================================================ */

/* 区块标题 */
.section-title {
  font-size: 1.375rem;
  margin-bottom: 6px;
}

.section-desc {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.section-head {
  margin-bottom: 20px;
}

.section-heading {
  margin-bottom: 20px;
}

/* 卡片通用 hover */
.guide-card,
.topic-card,
.recommend-card,
.recommend-item,
.tip-card,
.step-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.guide-card:hover,
.topic-card:hover,
.recommend-card:hover,
.recommend-item:hover,
.tip-card:hover,
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

/* ============================================================
   pages — 首页
   ============================================================ */

/* 首屏 hero */
.hero-section {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
  padding: 48px 0 40px;
}

.hero-copy {
  max-width: 560px;
}

.hero-title {
  font-size: 2.25rem;
  margin-bottom: 12px;
  color: var(--color-dark);
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 10px;
}

.hero-sub {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.hero-cta {
  display: inline-block;
  padding: 10px 28px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9375rem;
  transition: background-color 0.2s ease;
}

.hero-cta:hover {
  background-color: #2c5f47;
  color: var(--color-white);
}

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

.hero-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.hero-figure figcaption {
  padding: 8px 14px;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  background-color: var(--color-white);
}

/* 题材分类导航带 */
.category-strip {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

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

.category-tag {
  display: inline-block;
  padding: 8px 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--color-dark);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.category-tag:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* 最近更新列表 */
.recent-updates {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

.update-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.update-item {
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.update-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
}

.update-item img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.update-info {
  padding: 14px 16px 16px;
}

.update-title {
  font-size: 1rem;
  margin-bottom: 6px;
}

.update-status {
  display: inline-block;
  font-size: 0.8125rem;
  color: var(--color-primary);
  background-color: rgba(58, 125, 92, 0.1);
  padding: 2px 10px;
  border-radius: 999px;
  margin-right: 8px;
}

.update-date {
  font-size: 0.8125rem;
  color: var(--color-text-light);
}

/* 人气榜单预览 */
.ranking-preview {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ranking-item {
  display: grid;
  grid-template-columns: 48px 80px 1fr;
  gap: 16px;
  align-items: center;
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 12px 16px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.ranking-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

.ranking-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-accent);
  text-align: center;
}

.ranking-item img {
  width: 80px;
  height: 64px;
  object-fit: cover;
  border-radius: 4px;
}

.ranking-title {
  font-size: 1rem;
  margin-bottom: 4px;
}

.ranking-reason {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 0;
  line-height: 1.5;
}

/* 阅读指南入口 */
.guide-entry {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

.guide-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.guide-card {
  display: block;
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
  border-left: 4px solid var(--color-primary);
}

.guide-card-title {
  font-size: 1.125rem;
  margin-bottom: 8px;
  color: var(--color-dark);
}

.guide-card-text {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* 长尾推荐预告 */
.longtail-preview {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
}

.topic-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.topic-card {
  display: flex;
  gap: 16px;
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-card);
  align-items: center;
}

.topic-card img {
  width: 120px;
  height: 90px;
  object-fit: cover;
  border-radius: 4px;
  flex-shrink: 0;
}

.topic-title {
  font-size: 1.0625rem;
  margin-bottom: 6px;
}

.topic-text {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: 0;
  line-height: 1.5;
}

/* ============================================================
   pages — 题材分类页
   ============================================================ */

.category-intro {
  margin-bottom: 36px;
}

.intro-content {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
  align-items: center;
}

.intro-text p {
  font-size: 0.9375rem;
  line-height: 1.8;
}

.intro-figure {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.intro-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.intro-figure figcaption {
  padding: 8px 14px;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  background-color: var(--color-white);
}

.category-table-section {
  margin-bottom: 36px;
}

.table-wrapper {
  background-color: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow-x: auto;
}

.category-table {
  width: 100%;
  min-width: 640px;
}

.category-table th,
.category-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9375rem;
}

.category-table th {
  background-color: rgba(58, 125, 92, 0.08);
  font-weight: 700;
  color: var(--color-dark);
  white-space: nowrap;
}

.category-table td {
  vertical-align: top;
  line-height: 1.6;
}

.category-table tbody tr:last-child td {
  border-bottom: none;
}

.category-table tbody tr:hover {
  background-color: rgba(58, 125, 92, 0.04);
}

.category-tips {
  margin-bottom: 12px;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

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

.tip-card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.tip-card p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

.tips-footer {
  font-size: 0.9375rem;
}

/* ============================================================
   pages — 阅读指南页
   ============================================================ */

.guide-section {
  margin-bottom: 40px;
}

/* 快速开始 */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-card {
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-card);
  position: relative;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9375rem;
  margin-bottom: 12px;
}

.step-title {
  font-size: 1rem;
  margin-bottom: 8px;
}

.step-text {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* 追更技巧 */
.tips-layout {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 32px;
  align-items: start;
}

.guide-media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

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

.guide-media figcaption {
  padding: 8px 14px;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  background-color: var(--color-white);
}

.tips-content p {
  font-size: 0.9375rem;
  line-height: 1.8;
}

.tips-subtitle {
  font-size: 1.0625rem;
  margin-top: 16px;
  margin-bottom: 8px;
}

/* 主题目录 */
.topic-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.topic-item {
  display: flex;
  align-items: baseline;
  gap: 16px;
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.topic-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

.topic-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-primary);
  flex-shrink: 0;
  min-width: 100px;
}

.topic-desc {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.faq-item summary {
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  color: var(--color-dark);
  list-style: none;
  position: relative;
  padding-right: 44px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
  color: var(--color-primary);
  font-weight: 400;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  padding: 0 20px 16px;
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ============================================================
   pages — 恋爱漫画推荐页
   ============================================================ */

.recommendation-list {
  margin-bottom: 36px;
}

.recommend-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-card);
  margin-bottom: 20px;
}

.recommend-media {
  border-radius: 4px;
  overflow: hidden;
}

.recommend-media img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.recommend-title {
  font-size: 1.125rem;
  margin-bottom: 6px;
}

.recommend-tag {
  display: inline-block;
  font-size: 0.8125rem;
  color: var(--color-primary);
  background-color: rgba(58, 125, 92, 0.1);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.recommend-desc {
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 10px;
}

.recommend-reason {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

.recommend-reason strong {
  color: var(--color-accent);
  font-weight: 600;
}

.reason-note {
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.reason-note p {
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 8px;
}

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

/* ============================================================
   pages — 热血漫画推荐页
   ============================================================ */

.recommend-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 24px;
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-card);
  margin-bottom: 20px;
}

.recommend-cover {
  border-radius: 4px;
  overflow: hidden;
}

.recommend-cover img {
  width: 100%;
  height: 150px;
  object-fit: cover;
}

.recommend-info h3 {
  font-size: 1.125rem;
  margin-bottom: 6px;
}

.recommend-type {
  display: inline-block;
  font-size: 0.8125rem;
  color: var(--color-primary);
  background-color: rgba(58, 125, 92, 0.1);
  padding: 2px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.recommend-desc {
  font-size: 0.875rem;
  line-height: 1.7;
  margin-bottom: 10px;
}

.recommend-reason {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

.recommend-reason strong {
  color: var(--color-accent);
  font-weight: 600;
}

/* 看点指南 */
.viewpoint-guide {
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
  margin-bottom: 32px;
}

.viewpoint-guide > p {
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.viewpoint-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.viewpoint-list li {
  background-color: rgba(58, 125, 92, 0.05);
  border-radius: var(--radius);
  padding: 16px;
}

.viewpoint-list li h3 {
  font-size: 0.9375rem;
  margin-bottom: 6px;
}

.viewpoint-list li p {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* 相关推荐 */
.related-links {
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.related-links h2 {
  font-size: 1.125rem;
  margin-bottom: 12px;
}

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

.related-links ul li a {
  font-size: 0.9375rem;
}

.related-links ul li a:hover {
  text-decoration: underline;
}

/* ============================================================
   pages — 404 页
   ============================================================ */

.error-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px;
  min-height: 60vh;
}

.error-panel {
  text-align: center;
  padding: 48px 24px;
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  margin-bottom: 32px;
}

.error-code {
  font-size: 4rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 12px;
}

.error-title {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.error-back-btn {
  display: inline-block;
  padding: 10px 28px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9375rem;
}

.error-back-btn:hover {
  background-color: #2c5f47;
  color: var(--color-white);
}

.error-links {
  background-color: var(--color-card-bg);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.error-links-title {
  font-size: 1.125rem;
  margin-bottom: 12px;
}

.error-links-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.error-links-list li a {
  display: block;
  padding: 10px 16px;
  background-color: rgba(58, 125, 92, 0.08);
  border-radius: var(--radius);
  font-size: 0.875rem;
  text-align: center;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.error-links-list li a:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* ============================================================
   responsive — 响应式
   ============================================================ */

/* 平板及以下 */
@media (max-width: 992px) {
  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero-figure img {
    height: 240px;
  }

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

  .intro-content {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .tips-layout {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

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

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

/* 手机端 */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 12px rgba(45, 62, 80, 0.1);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    padding: 12px 16px;
    gap: 4px;
    width: 100%;
  }

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

  .nav-list li a {
    padding: 12px 16px;
    font-size: 1rem;
  }

  .site-main,
  .inner-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-section {
    padding: 32px 0 24px;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .hero-figure img {
    height: 200px;
  }

  .category-tags {
    gap: 8px;
  }

  .category-tag {
    padding: 6px 14px;
    font-size: 0.8125rem;
  }

  .update-list {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .update-item img {
    height: 200px;
  }

  .ranking-item {
    grid-template-columns: 36px 64px 1fr;
    gap: 12px;
    padding: 10px 12px;
  }

  .ranking-num {
    font-size: 1.25rem;
  }

  .ranking-item img {
    width: 64px;
    height: 52px;
  }

  .guide-cards,
  .topic-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .topic-card img {
    width: 100px;
    height: 76px;
  }

  .footer-inner {
    padding: 32px 16px 20px;
  }

  .footer-links {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-header {
    margin-bottom: 20px;
  }

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

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .tips-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .topic-item {
    flex-direction: column;
    gap: 6px;
  }

  .topic-name {
    min-width: 0;
  }

  .recommend-card,
  .recommend-item {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .recommend-media img,
  .recommend-cover img {
    height: 200px;
  }

  .viewpoint-list {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .error-main {
    padding: 32px 16px;
  }

  .error-code {
    font-size: 3rem;
  }

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

  .table-wrapper {
    margin: 0 -16px;
    width: calc(100% + 32px);
    border-radius: 0;
  }

  .category-table {
    min-width: 560px;
  }
}

/* 小屏手机 */
@media (max-width: 390px) {
  .brand-slogan {
    display: none;
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.25rem;
  }

  .ranking-item {
    grid-template-columns: 28px 56px 1fr;
    gap: 10px;
  }

  .ranking-item img {
    width: 56px;
    height: 48px;
  }

  .ranking-num {
    font-size: 1.0625rem;
  }

  .topic-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .topic-card img {
    width: 100%;
    height: 160px;
  }

  .guide-card {
    padding: 18px;
  }
}