/* ============================================================
   BASE — 重置、变量、基础排版
   ============================================================ */
:root {
  --color-white: #ffffff;
  --color-ink: #2d2d2d;
  --color-coral: #ff7e67;
  --color-blue: #4aa3df;
  --color-bg: #f5f5f5;
  --color-text: #444444;
  --color-muted: #888888;
  --color-border: #e8e8e8;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.1);
  --transition: all 0.25s ease;
  --header-height: 64px;
}

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

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

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

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  color: var(--color-ink);
  line-height: 1.3;
  font-weight: 600;
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 0.75em;
}

/* 隐藏 class，仅供特殊场景（如视觉隐藏标题） */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   LAYOUT — 容器、栅格、通用布局骨架
   ============================================================ */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
}

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

.home-main {
  width: 100%;
}

.inner-main {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  white-space: nowrap;
}

.brand-name::first-letter {
  color: var(--color-coral);
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-list li {
  position: relative;
}

.nav-list a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  color: var(--color-ink);
  border-radius: var(--radius-sm);
  font-weight: 500;
  line-height: 1.4;
}

.nav-list a:hover {
  color: var(--color-coral);
  background-color: rgba(255, 126, 103, 0.08);
}

.nav-list a.is-current {
  color: var(--color-coral);
  background-color: rgba(255, 126, 103, 0.1);
  font-weight: 600;
}

/* 汉堡按钮：桌面隐藏 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 10px;
  flex-shrink: 0;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 2px;
  transition: var(--transition);
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 24px;
  padding: 12px 0;
}

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

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

.breadcrumb-sep {
  color: #cccccc;
}

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

/* 页面标题区 */
.page-header {
  margin-bottom: 36px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--color-border);
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 8px;
}

.page-description {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 720px;
  line-height: 1.7;
}

/* 区块通用 */
.section-header {
  margin-bottom: 28px;
}

.section-header h2,
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 6px;
  position: relative;
  padding-left: 14px;
}

.section-header h2::before,
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background-color: var(--color-coral);
  border-radius: 2px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.6;
}

.section-intro {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 800px;
}

/* ============================================================
   COMPONENTS — 卡片、列表、标签等业务组件
   ============================================================ */

/* ---- 首页 Hero ---- */
.hero-section {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  width: 100%;
}

.hero-section .hero-content,
.hero-section .hero-media {
  /* 由 hero-section 内部 grid 控制 */
}

.hero-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 60px 20px;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.hero-content h1 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-ink);
  margin-bottom: 4px;
}

.hero-slogan {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-coral);
  margin-bottom: 4px;
}

.hero-desc {
  font-size: 16px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 12px;
  max-width: 480px;
}

.hero-cta {
  display: inline-block;
  padding: 12px 32px;
  background-color: var(--color-coral);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  min-height: 44px;
  line-height: 1.4;
}

.hero-cta:hover {
  background-color: #e56a54;
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

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

.hero-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  display: block;
}

/* ---- 首页分类导航带 ---- */
.category-nav-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px;
}

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

.category-tag {
  display: inline-flex;
  align-items: center;
  padding: 10px 22px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 15px;
  color: var(--color-ink);
  font-weight: 500;
  transition: var(--transition);
  min-height: 44px;
}

.category-tag:hover {
  background-color: var(--color-coral);
  border-color: var(--color-coral);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* ---- 首页最近更新 ---- */
.recent-updates-section {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.recent-updates-section .section-header,
.recent-updates-section .update-list {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
}

.recent-updates-section .section-header {
  padding: 48px 20px 0;
}

.update-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 24px 20px 48px;
}

.update-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.update-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.update-info {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.update-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.4;
}

.update-meta {
  font-size: 14px;
  color: var(--color-muted);
  margin-top: auto;
}

/* ---- 首页人气榜单 ---- */
.ranking-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px;
}

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

.ranking-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  transition: var(--transition);
}

.ranking-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateX(4px);
}

.ranking-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-bg);
  color: var(--color-ink);
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}

.ranking-item:nth-child(1) .ranking-number {
  background-color: var(--color-coral);
  color: var(--color-white);
}

.ranking-item:nth-child(2) .ranking-number {
  background-color: var(--color-blue);
  color: var(--color-white);
}

.ranking-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ranking-info h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-ink);
}

.ranking-reason {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.5;
  margin: 0;
}

/* ---- 首页阅读指南入口 ---- */
.guide-entry-section {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.guide-entry-section .section-header,
.guide-entry-section .guide-cards {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
}

.guide-entry-section .section-header {
  padding: 48px 20px 0;
}

.guide-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 24px 20px 48px;
}

.guide-card {
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  border: 1px solid transparent;
  transition: var(--transition);
}

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

.guide-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-ink);
}

.guide-card p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  flex: 1;
}

.guide-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-coral);
  min-height: 44px;
}

.guide-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.guide-link:hover::after {
  transform: translateX(4px);
}

/* ---- 首页相关链接导航 ---- */
.related-links {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
  margin-right: 8px;
}

.related-links-item {
  display: inline-block;
  padding: 8px 18px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 14px;
  color: var(--color-ink);
  min-height: 40px;
  line-height: 1.4;
}

.related-links-item:hover {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  color: var(--color-white);
}

/* ---- 分类页：分类网格 ---- */
.category-list {
  margin-bottom: 48px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.category-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.category-figure {
  width: 100%;
  overflow: hidden;
  background-color: var(--color-bg);
}

.category-figure img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.category-card:hover .category-figure img {
  transform: scale(1.05);
}

.category-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.category-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-ink);
}

.category-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.category-example {
  font-size: 14px;
  color: var(--color-muted);
  margin-top: auto;
  padding-top: 8px;
}

.category-example a {
  color: var(--color-blue);
  font-weight: 500;
}

/* ---- 分类页：说明与代表作品 ---- */
.category-notes {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 48px;
}

.category-notes p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
}

.category-notes a {
  color: var(--color-blue);
  font-weight: 500;
}

.representative-works {
  margin-bottom: 24px;
}

.work-list {
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.work-list li {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  font-size: 15px;
  line-height: 1.6;
  transition: var(--transition);
}

.work-list li:hover {
  border-color: var(--color-blue);
  box-shadow: var(--shadow-card);
}

.work-list strong {
  color: var(--color-ink);
  font-weight: 600;
  margin-right: 8px;
}

/* ---- 长尾页：推荐卡片 ---- */
.recommendations {
  margin-bottom: 48px;
}

.recommend-card {
  display: flex;
  gap: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 24px;
  transition: var(--transition);
  align-items: flex-start;
}

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

.card-media,
.card-cover {
  width: 200px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg);
}

.card-media img,
.card-cover img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
}

.card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.card-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-ink);
  line-height: 1.4;
}

.card-body p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0;
}

/* ---- 恋爱页：选择建议 ---- */
.tips {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-top: 24px;
}

.tips-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tips-content p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
  margin: 0;
  padding-left: 16px;
  position: relative;
}

.tips-content p::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: var(--color-coral);
  border-radius: 50%;
}

/* ---- 热血页：阅读顺序 ---- */
.order {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-top: 24px;
}

.order-list {
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin: 24px 0;
}

.order-list li {
  position: relative;
  padding-left: 56px;
  counter-increment: step;
}

.order-list li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-blue);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.order-list h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 6px;
}

.order-list p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  margin: 0;
}

.order-note {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-top: 12px;
}

.order-note a {
  color: var(--color-blue);
  font-weight: 500;
}

/* ---- 指南页：步骤卡片 ---- */
.guide-steps {
  margin-bottom: 48px;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 24px;
}

.step-card {
  display: flex;
  gap: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  align-items: flex-start;
  transition: var(--transition);
}

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

.step-media {
  width: 260px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg);
}

.step-media img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}

.step-content {
  flex: 1;
  min-width: 0;
}

.step-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 10px;
}

.step-content p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 8px;
}

/* ---- 指南页：更新与榜单区块 ---- */
.guide-updates,
.guide-ranking {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 32px;
}

.updates-content,
.ranking-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin-top: 20px;
}

.updates-text h3,
.ranking-text h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: 10px;
}

.updates-text p,
.ranking-text p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 8px;
}

.updates-media,
.ranking-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg);
}

.updates-media img,
.ranking-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.updates-media figcaption,
.ranking-media figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-muted);
  text-align: center;
  background-color: var(--color-white);
}

/* ---- 指南页：相关链接 ---- */
.guide-related {
  margin-top: 24px;
}

.related-intro {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.guide-related .related-links {
  padding: 0;
  margin: 0;
  justify-content: flex-start;
}

.guide-related .related-links li {
  margin: 0;
}

/* ---- 404 页面 ---- */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 60px 20px;
}

.error-content {
  text-align: center;
  max-width: 560px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-card);
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-coral);
  line-height: 1;
  margin-bottom: 16px;
}

.error-content h1 {
  font-size: 24px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

.error-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 32px;
  background-color: var(--color-coral);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 600;
  min-height: 44px;
}

.error-back:hover {
  background-color: #e56a54;
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 32px;
  max-width: 560px;
}

.error-links a {
  display: inline-block;
  padding: 10px 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 14px;
  color: var(--color-ink);
  min-height: 40px;
  line-height: 1.4;
}

.error-links a:hover {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  color: var(--color-white);
}

/* ---- 页脚 ---- */
.site-footer {
  background-color: var(--color-ink);
  color: #a8a8a8;
  margin-top: auto;
  width: 100%;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px 24px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #a8a8a8;
}

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

.footer-col h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  font-size: 14px;
  color: #a8a8a8;
  display: inline-block;
  padding: 4px 0;
  line-height: 1.4;
}

.footer-col a:hover {
  color: var(--color-coral);
}

.footer-copyright {
  grid-column: 1 / -1;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  margin-top: 16px;
  text-align: center;
}

.footer-copyright p {
  font-size: 13px;
  color: #888888;
  margin: 0;
}

/* ============================================================
   PAGES — 页面级微调（仅限内部模块，不触碰全局骨架）
   ============================================================ */

/* 分类页 */
.page-category .category-list {
  margin-bottom: 48px;
}

.page-category .category-notes {
  margin-bottom: 48px;
}

/* 指南页 */
.page-guide .guide-steps {
  margin-bottom: 48px;
}

.page-guide .guide-updates,
.page-guide .guide-ranking {
  margin-bottom: 32px;
}

/* 恋爱页 */
.page-romance .recommendations {
  margin-bottom: 48px;
}

/* 热血页 */
.page-action .recommendations {
  margin-bottom: 48px;
}

/* ============================================================
   RESPONSIVE — 移动端适配（断点 768px）
   ============================================================ */

@media (max-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .hero-section {
    gap: 24px;
    padding: 40px 20px;
  }

  .hero-content h1 {
    font-size: 28px;
  }

  .step-media {
    width: 220px;
  }
}

@media (max-width: 768px) {
  /* 页头与导航 */
  .header-inner {
    height: 56px;
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .site-nav.nav-open {
    max-height: 320px;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0;
  }

  .nav-list li {
    width: 100%;
  }

  .nav-list a {
    padding: 14px 20px;
    border-radius: 0;
    font-size: 16px;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-list li:last-child a {
    border-bottom: none;
  }

  .nav-list a.is-current {
    background-color: rgba(255, 126, 103, 0.08);
  }

  /* 汉堡按钮动画 */
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* 首页 hero */
  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 16px;
  }

  .hero-content {
    order: 1;
  }

  .hero-media {
    order: 2;
  }

  .hero-content h1 {
    font-size: 26px;
  }

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

  .hero-media img {
    height: 220px;
  }

  .hero-cta {
    width: 100%;
    text-align: center;
  }

  /* 首页模块 */
  .category-nav-section,
  .ranking-section {
    padding: 32px 16px;
  }

  .category-tags {
    gap: 8px;
  }

  .category-tag {
    padding: 8px 16px;
    font-size: 14px;
  }

  .update-list {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px 16px 32px;
  }

  .recent-updates-section .section-header {
    padding: 32px 16px 0;
  }

  .update-item {
    flex-direction: row;
    align-items: stretch;
  }

  .update-item img {
    width: 120px;
    height: 120px;
    flex-shrink: 0;
  }

  .update-info {
    padding: 12px;
  }

  .update-info h3 {
    font-size: 16px;
  }

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

  .ranking-number {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }

  .ranking-info h3 {
    font-size: 16px;
  }

  .guide-cards {
    grid-template-columns: 1fr;
    padding: 16px 16px 32px;
  }

  .guide-entry-section .section-header {
    padding: 32px 16px 0;
  }

  .guide-card {
    padding: 24px;
  }

  .related-links {
    padding: 24px 16px;
  }

  /* 内页 */
  .inner-main {
    padding: 16px 16px 48px;
  }

  .breadcrumb {
    margin-bottom: 16px;
    padding: 8px 0;
    font-size: 13px;
  }

  .page-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
  }

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

  .page-description {
    font-size: 15px;
  }

  /* 分类页 */
  .category-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 16px;
  }

  .category-figure img {
    height: 140px;
  }

  .category-body {
    padding: 12px;
  }

  .category-name {
    font-size: 16px;
  }

  .category-desc {
    font-size: 13px;
  }

  .category-notes {
    padding: 20px;
  }

  /* 推荐卡片 */
  .recommend-card {
    flex-direction: column;
    padding: 16px;
    gap: 16px;
  }

  .card-media,
  .card-cover {
    width: 100%;
  }

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

  .card-body h3 {
    font-size: 18px;
  }

  /* 指南步骤 */
  .step-card {
    flex-direction: column;
    padding: 16px;
    gap: 16px;
  }

  .step-media {
    width: 100%;
  }

  .step-media img {
    height: 160px;
  }

  /* 指南更新与榜单 */
  .updates-content,
  .ranking-content {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .updates-media img,
  .ranking-media img {
    height: 180px;
  }

  .guide-updates,
  .guide-ranking {
    padding: 20px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 16px 24px;
  }

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

  .footer-copyright {
    margin-top: 8px;
  }

  /* 404 */
  .error-main {
    padding: 40px 16px;
  }

  .error-content {
    padding: 32px 24px;
  }

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

  .error-content h1 {
    font-size: 20px;
  }
}

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

  .update-item img {
    width: 100px;
    height: 100px;
  }

  .category-tag {
    padding: 8px 14px;
    font-size: 13px;
  }

  .hero-content h1 {
    font-size: 24px;
  }

  .hero-desc {
    font-size: 15px;
  }

  .brand-name {
    font-size: 19px;
  }

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

/* ============================================================
   ACCESSIBILITY & MOTION — 无障碍与动效增强
   ============================================================ */

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

:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 2px;
}

@media (max-width: 768px) {
  .nav-toggle:focus-visible {
    outline: 2px solid var(--color-coral);
    outline-offset: 2px;
  }
}