/* ============================================================
   BASE — 全局基础样式
   ============================================================ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: #1d1d1f;
  background-color: #f7f5f0;
}

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

a {
  color: #1d1d1f;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #e8437d;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: 'Songti SC', 'Noto Serif SC', 'STSong', serif;
  font-weight: 700;
  color: #1d1d1f;
  line-height: 1.3;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   LAYOUT — 全站布局骨架
   ============================================================ */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: #f7f5f0;
}

.site-header {
  background-color: #f7f5f0;
  border-bottom: 1px solid #e9e6df;
  position: relative;
  z-index: 100;
}

.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  flex-shrink: 0;
}

.brand-name {
  font-family: 'Songti SC', 'Noto Serif SC', 'STSong', serif;
  font-size: 22px;
  font-weight: 700;
  color: #1d1d1f;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.brand-en {
  font-size: 10px;
  color: #e8437d;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin-top: 2px;
}

.site-nav {
  flex: 1;
  display: flex;
  justify-content: flex-end;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-list a {
  display: inline-block;
  padding: 6px 2px;
  font-size: 15px;
  color: #1d1d1f;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.nav-list a:hover {
  color: #e8437d;
  border-bottom-color: #e8437d;
}

.nav-list a.is-current {
  color: #e8437d;
  border-bottom-color: #e8437d;
  font-weight: 600;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
}

.nav-toggle-line {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #1d1d1f;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-main {
  flex: 1;
}

.site-footer {
  background-color: #f7f5f0;
  border-top: 1px solid #e9e6df;
  margin-top: auto;
}

.footer-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 40px 24px 28px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 28px;
  margin-bottom: 24px;
}

.footer-nav a {
  display: inline-block;
  padding: 6px 4px;
  font-size: 14px;
  color: #1d1d1f;
}

.footer-nav a:hover {
  color: #e8437d;
}

.footer-tagline {
  text-align: center;
  font-family: 'Songti SC', 'Noto Serif SC', 'STSong', serif;
  font-size: 15px;
  color: #1d1d1f;
  margin-bottom: 8px;
}

.footer-note {
  text-align: center;
  font-size: 13px;
  color: #6b6b6f;
  margin-bottom: 12px;
}

.footer-copy {
  text-align: center;
  font-size: 12px;
  color: #9a9a9e;
  border-top: 1px solid #e9e6df;
  padding-top: 16px;
}

/* ============================================================
   COMPONENTS — 通用组件
   ============================================================ */
/* 面包屑 */
.breadcrumb {
  max-width: 1160px;
  margin: 0 auto;
  padding: 24px 24px 0;
  font-size: 13px;
  color: #6b6b6f;
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb a {
  color: #6b6b6f;
}

.breadcrumb a:hover {
  color: #e8437d;
}

.breadcrumb-sep {
  color: #c9c6bf;
  font-size: 12px;
}

.breadcrumb-current {
  color: #1d1d1f;
  font-weight: 500;
}

/* 杂志封面式页面标题区 */
.page-header {
  max-width: 1160px;
  margin: 0 auto;
  padding: 28px 24px 20px;
  border-bottom: 3px solid #111111;
  margin-bottom: 32px;
}

.page-description {
  font-size: 12px;
  color: #e8437d;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 8px;
  font-weight: 600;
}

.page-title {
  font-size: 28px;
  line-height: 1.25;
  margin-bottom: 10px;
}

.page-title-desc,
.page-header-desc,
.page-sub {
  font-size: 15px;
  color: #55555a;
  max-width: 720px;
}

/* 区块标题 */
.section-title {
  font-size: 20px;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 42px;
  height: 2px;
  background-color: #e8437d;
}

/* 说明框 */
.note-box {
  max-width: 1160px;
  margin: 28px auto 0;
  padding: 0 24px 40px;
}

.note-box .note-title,
.note-box .note-text {
  background-color: #111111;
  color: #f7f5f0;
  padding: 20px 28px;
  font-size: 14px;
  line-height: 1.8;
}

/* 内页布局容器 */
.inner-main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px 56px;
  width: 100%;
}

/* ============================================================
   PAGES — 首页
   ============================================================ */
.home-main {
  width: 100%;
}

/* Hero 首屏焦点区 */
.hero-section {
  position: relative;
  background-color: #1d1d1f;
  min-height: 420px;
  display: flex;
  align-items: center;
}

.hero-media {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.62;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1240px;
  margin: 0 auto;
  padding: 56px 24px;
  width: 100%;
}

.hero-content h1 {
  font-size: 42px;
  color: #ffffff;
  margin-bottom: 14px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.hero-lead {
  font-size: 16px;
  color: #f0ece2;
  max-width: 560px;
  margin-bottom: 28px;
  line-height: 1.8;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  min-height: 44px;
  line-height: 1.4;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background-color: #e8437d;
  color: #ffffff;
  border: 1px solid #e8437d;
}

.btn-primary:hover {
  background-color: #d6346e;
  color: #ffffff;
  border-color: #d6346e;
}

.btn-secondary {
  background-color: #ffce3a;
  color: #1d1d1f;
  border: 1px solid #ffce3a;
}

.btn-secondary:hover {
  background-color: #f0c02a;
  color: #1d1d1f;
  border-color: #f0c02a;
}

.btn-outline {
  background-color: transparent;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.8);
}

.btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-color: #ffffff;
}

.btn-small {
  display: inline-block;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 4px;
  background-color: #111111;
  color: #f7f5f0;
  border: 1px solid #111111;
  min-height: 40px;
  line-height: 1.4;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.btn-small:hover {
  background-color: #e8437d;
  color: #ffffff;
  border-color: #e8437d;
}

/* 卷首语 */
.site-intro {
  max-width: 1240px;
  margin: 0 auto;
  padding: 36px 24px 8px;
}

.site-intro p {
  font-family: 'Songti SC', 'Noto Serif SC', 'STSong', serif;
  font-size: 16px;
  line-height: 1.9;
  color: #1d1d1f;
  border-left: 4px solid #e8437d;
  padding-left: 20px;
  max-width: 860px;
}

/* 首页双栏主体 */
.home-layout {
  max-width: 1240px;
  margin: 0 auto;
  padding: 32px 24px 48px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: start;
}

.layout-main {
  min-width: 0;
}

.layout-side {
  min-width: 0;
}

/* 焦点专题 */
.focus-section {
  margin-bottom: 44px;
}

.section-en {
  display: block;
  font-size: 11px;
  color: #e8437d;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-bottom: 6px;
  font-weight: 600;
}

.focus-section h2,
.updates-section h2,
.tags-section h2,
.steps-section h2 {
  font-size: 22px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid #111111;
  position: relative;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature-card {
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.feature-card a {
  display: block;
}

.card-thumb {
  overflow: hidden;
  aspect-ratio: 3 / 4;
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.feature-card:hover .card-thumb img {
  transform: scale(1.03);
}

.feature-card .card-tags {
  padding: 14px 16px 4px;
}

.tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  color: #e8437d;
  background-color: rgba(232, 67, 125, 0.08);
  border-radius: 3px;
  margin-right: 6px;
  margin-bottom: 4px;
}

.feature-card .card-summary {
  padding: 0 16px 16px;
  font-size: 14px;
  color: #55555a;
  line-height: 1.6;
}

/* 最近更新 */
.updates-section {
  margin-bottom: 44px;
}

.update-list {
  border-top: 1px solid #e9e6df;
}

.update-item {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 14px 4px;
  border-bottom: 1px solid #e9e6df;
  transition: background-color 0.2s ease;
}

.update-item:hover {
  background-color: rgba(232, 67, 125, 0.04);
}

.update-date {
  font-size: 13px;
  color: #e8437d;
  font-weight: 600;
  flex-shrink: 0;
  min-width: 72px;
}

.update-item a {
  font-size: 15px;
  color: #1d1d1f;
  line-height: 1.5;
}

.update-item a:hover {
  color: #e8437d;
}

/* 侧栏：题材标签 */
.tags-section {
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 24px 22px;
  margin-bottom: 28px;
}

.tags-section h2,
.steps-section h2 {
  font-size: 18px;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.tag-cloud li a {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  color: #1d1d1f;
  background-color: #f7f5f0;
  border: 1px solid #e9e6df;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.tag-cloud li a:hover {
  background-color: #e8437d;
  color: #ffffff;
  border-color: #e8437d;
}

.tag-desc {
  font-size: 13px;
  color: #6b6b6f;
  line-height: 1.6;
}

/* 侧栏：阅读指南 */
.steps-section {
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 24px 22px;
}

.guide-steps {
  counter-reset: step-counter;
  margin-bottom: 16px;
}

.step-item {
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid #f0ede6;
  align-items: flex-start;
}

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

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: #ffce3a;
  color: #1d1d1f;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
}

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

.step-content p {
  font-size: 14px;
  color: #55555a;
  line-height: 1.6;
  margin-top: 2px;
}

.text-link {
  display: inline-block;
  font-size: 14px;
  color: #e8437d;
  font-weight: 600;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.text-link:hover {
  border-bottom-color: #e8437d;
}

/* 版权说明框 */
.copyright-box {
  background-color: #111111;
  color: #f7f5f0;
}

.copyright-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 32px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.copyright-text {
  font-size: 15px;
  line-height: 1.7;
  max-width: 780px;
}

.copyright-text strong {
  color: #ffce3a;
  font-weight: 600;
}

/* ============================================================
   PAGES — 漫画专题页 (manhua-zt)
   ============================================================ */
.page-layout {
  display: grid;
  grid-template-columns: 800px 300px;
  gap: 40px;
  align-items: start;
}

.zt-intro {
  margin-bottom: 32px;
}

.zt-intro p {
  font-size: 15px;
  color: #55555a;
  max-width: 720px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.feature-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 20px;
  transition: box-shadow 0.2s ease;
}

.feature-item:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.07);
}

.feature-media {
  min-width: 0;
}

.feature-figure {
  overflow: hidden;
  border-radius: 4px;
  aspect-ratio: 3 / 4;
  background-color: #e9e6df;
}

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

.feature-body {
  min-width: 0;
}

.feature-topline {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.feature-no {
  font-size: 13px;
  color: #ffffff;
  background-color: #e8437d;
  padding: 2px 10px;
  border-radius: 3px;
  font-weight: 600;
}

.feature-tag {
  font-size: 12px;
  color: #e8437d;
  background-color: rgba(232, 67, 125, 0.08);
  padding: 2px 10px;
  border-radius: 3px;
}

.feature-title {
  font-size: 20px;
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 14px;
  color: #55555a;
  line-height: 1.7;
  margin-bottom: 8px;
}

.feature-direction {
  font-size: 13px;
  color: #6b6b6f;
  line-height: 1.6;
  border-left: 3px solid #ffce3a;
  padding-left: 12px;
}

/* 右侧栏 */
.side-topics {
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 22px;
  margin-bottom: 24px;
}

.side-title {
  font-size: 17px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #111111;
}

.side-topics-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.side-topics-list li a {
  display: block;
  padding: 10px 6px;
  font-size: 14px;
  border-bottom: 1px solid #f0ede6;
  transition: padding-left 0.2s ease, color 0.2s ease;
}

.side-topics-list li a:hover {
  color: #e8437d;
  padding-left: 12px;
}

.side-note {
  background-color: #111111;
  color: #f7f5f0;
  border-radius: 6px;
  padding: 22px;
}

.side-note .side-title {
  color: #ffce3a;
  border-bottom-color: #ffce3a;
}

.side-note p {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 12px;
}

.side-note a {
  display: inline-block;
  font-size: 14px;
  color: #ffce3a;
  font-weight: 600;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.side-note a:hover {
  border-bottom-color: #ffce3a;
}

/* ============================================================
   PAGES — 题材分类页 (ticai)
   ============================================================ */
.intro-block {
  margin-bottom: 32px;
}

.intro-block p {
  font-size: 15px;
  color: #55555a;
  max-width: 760px;
  margin-bottom: 12px;
}

.tag-list {
  margin-bottom: 40px;
}

.tag-row {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 28px;
  align-items: center;
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 22px 26px;
  margin-bottom: 16px;
  transition: box-shadow 0.2s ease;
}

.tag-row:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.tag-main {
  display: flex;
  gap: 18px;
  min-width: 0;
}

.tag-no {
  font-family: 'Songti SC', 'Noto Serif SC', 'STSong', serif;
  font-size: 26px;
  font-weight: 700;
  color: #e8437d;
  line-height: 1.2;
  flex-shrink: 0;
  min-width: 40px;
}

.tag-body {
  min-width: 0;
}

.tag-name {
  font-size: 19px;
  margin-bottom: 6px;
}

.tag-desc {
  font-size: 14px;
  color: #55555a;
  line-height: 1.7;
  margin-bottom: 6px;
}

.tag-expect {
  font-size: 13px;
  color: #6b6b6f;
  line-height: 1.6;
  margin-bottom: 10px;
}

.tag-link {
  display: inline-block;
  font-size: 14px;
  color: #e8437d;
  font-weight: 600;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.tag-link:hover {
  border-bottom-color: #e8437d;
}

.tag-media {
  overflow: hidden;
  border-radius: 4px;
  aspect-ratio: 4 / 3;
  background-color: #e9e6df;
}

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

/* 引导区块 */
.guide-callout,
.copyright-callout {
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 24px 28px;
  margin-bottom: 20px;
}

.guide-callout .section-title::after,
.copyright-callout .section-title::after {
  background-color: #ffce3a;
}

.guide-callout p,
.copyright-callout p {
  font-size: 15px;
  color: #55555a;
  line-height: 1.7;
  max-width: 780px;
}

.guide-callout p a,
.copyright-callout p a {
  color: #e8437d;
  font-weight: 600;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.guide-callout p a:hover,
.copyright-callout p a:hover {
  border-bottom-color: #e8437d;
}

/* ============================================================
   PAGES — 阅读指南页 (ydzn)
   ============================================================ */
.step-bar {
  margin-bottom: 40px;
}

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

.step-list .step-item {
  display: block;
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 26px 24px;
  border-top: 4px solid #e8437d;
  transition: box-shadow 0.2s ease;
}

.step-list .step-item:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.07);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: #ffce3a;
  color: #1d1d1f;
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 14px;
}

.step-name {
  font-size: 18px;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: #55555a;
  line-height: 1.7;
}

/* FAQ */
.faq-list {
  margin-bottom: 40px;
}

.faq-item {
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  padding: 16px 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  list-style: none;
  transition: background-color 0.2s ease;
}

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

.faq-question::after {
  content: '+';
  font-size: 22px;
  color: #e8437d;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-question {
  background-color: rgba(232, 67, 125, 0.05);
}

.faq-item[open] .faq-question::after {
  content: '−';
}

.faq-answer {
  padding: 0 22px 18px;
  font-size: 14px;
  color: #55555a;
  line-height: 1.8;
  border-top: 1px solid #f0ede6;
  padding-top: 14px;
}

.guide-figure {
  max-width: 760px;
  margin: 0 auto 40px;
  border-radius: 6px;
  overflow: hidden;
  background-color: #ffffff;
  border: 1px solid #e9e6df;
}

.guide-figure img {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
}

.guide-figure figcaption {
  padding: 12px 18px;
  font-size: 13px;
  color: #6b6b6f;
  text-align: center;
}

/* ============================================================
   PAGES — 更新记录页 (gxrz)
   ============================================================ */
.update-groups {
  margin-bottom: 40px;
}

.update-group {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 28px;
  margin-bottom: 36px;
}

.update-date {
  text-align: right;
  padding-top: 4px;
}

.update-month {
  font-family: 'Songti SC', 'Noto Serif SC', 'STSong', serif;
  font-size: 20px;
  font-weight: 700;
  color: #1d1d1f;
  display: block;
  line-height: 1.2;
}

.update-day {
  font-size: 38px;
  font-weight: 700;
  color: #e8437d;
  display: block;
  line-height: 1.1;
}

.update-group-body {
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 24px;
  min-width: 0;
}

.update-media {
  overflow: hidden;
  border-radius: 4px;
  margin-bottom: 18px;
  aspect-ratio: 16 / 7;
  background-color: #e9e6df;
}

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

.update-group-title {
  font-size: 20px;
  margin-bottom: 16px;
}

.update-list {
  border-top: 1px solid #f0ede6;
}

.update-list .update-item {
  display: block;
  padding: 14px 0;
  border-bottom: 1px solid #f0ede6;
}

.update-item-title {
  font-size: 16px;
  margin-bottom: 6px;
}

.update-item-summary {
  font-size: 14px;
  color: #55555a;
  line-height: 1.7;
  margin-bottom: 8px;
}

.update-item-link {
  display: inline-block;
  font-size: 14px;
  color: #e8437d;
  font-weight: 600;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.update-item-link:hover {
  border-bottom-color: #e8437d;
}

/* 关联专题 */
.related-topics {
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 26px 28px;
}

.related-topics > p {
  font-size: 14px;
  color: #55555a;
  margin-bottom: 18px;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.related-item {
  background-color: #f7f5f0;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 16px 18px;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.related-item:hover {
  background-color: #ffffff;
  transform: translateY(-2px);
}

.related-item a {
  display: block;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  font-family: 'Songti SC', 'Noto Serif SC', 'STSong', serif;
}

.related-desc {
  font-size: 13px;
  color: #6b6b6f;
  line-height: 1.6;
}

/* ============================================================
   PAGES — 版权与反馈页 (bqfk)
   ============================================================ */
.layout-shell {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 40px;
  align-items: start;
}

.sidebar-left .breadcrumb,
.sidebar-left .page-header {
  display: none;
}

.feedback-sidebar {
  background-color: #111111;
  color: #f7f5f0;
  border-radius: 6px;
  padding: 26px 24px;
  position: sticky;
  top: 24px;
}

.sidebar-title {
  font-size: 19px;
  color: #ffce3a;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid #ffce3a;
}

.sidebar-intro {
  font-size: 14px;
  line-height: 1.7;
  color: #d8d4ca;
  margin-bottom: 20px;
}

.feedback-sidebar .step-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.feedback-sidebar .step-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.feedback-sidebar .step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background-color: #ffce3a;
  color: #1d1d1f;
  font-size: 15px;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
}

.step-body {
  min-width: 0;
}

.step-title {
  font-size: 15px;
  color: #ffce3a;
  margin-bottom: 4px;
}

.step-text {
  font-size: 13px;
  color: #d8d4ca;
  line-height: 1.6;
}

.sidebar-note {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 13px;
  color: #d8d4ca;
  line-height: 1.6;
}

.copyright-main {
  min-width: 0;
}

.copyright-main .breadcrumb,
.copyright-main .page-header {
  display: block;
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}

.copyright-section {
  margin-bottom: 36px;
}

.section-lead {
  font-size: 15px;
  color: #55555a;
  line-height: 1.7;
  margin-bottom: 20px;
}

.copyright-figure {
  overflow: hidden;
  border-radius: 6px;
  margin-bottom: 24px;
  border: 1px solid #e9e6df;
  background-color: #ffffff;
}

.copyright-figure img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.copyright-figure figcaption {
  padding: 10px 18px;
  font-size: 13px;
  color: #6b6b6f;
  text-align: center;
}

.clause-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.clause-item {
  display: flex;
  gap: 16px;
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 18px 22px;
}

.clause-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: #e8437d;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
}

.clause-body {
  min-width: 0;
}

.clause-title {
  font-size: 16px;
  margin-bottom: 4px;
}

.clause-text {
  font-size: 14px;
  color: #55555a;
  line-height: 1.7;
}

/* 路径区块 */
.path-section {
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 6px;
  padding: 26px 28px;
}

.path-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.path-link {
  display: inline-block;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #1d1d1f;
  background-color: #f7f5f0;
  border: 1px solid #e9e6df;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.path-link:hover {
  background-color: #e8437d;
  color: #ffffff;
  border-color: #e8437d;
}

/* ============================================================
   PAGES — 404 页
   ============================================================ */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  flex: 1;
}

.error-panel {
  max-width: 620px;
  width: 100%;
  text-align: left;
  background-color: #ffffff;
  border: 1px solid #e9e6df;
  border-radius: 8px;
  padding: 48px 44px;
}

.error-code {
  font-family: 'Songti SC', 'Noto Serif SC', 'STSong', serif;
  font-size: 64px;
  font-weight: 700;
  color: #e8437d;
  line-height: 1;
  margin-bottom: 16px;
}

.error-panel h1 {
  font-size: 26px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: #55555a;
  line-height: 1.7;
  margin-bottom: 28px;
}

.error-home {
  display: inline-block;
  padding: 12px 28px;
  background-color: #e8437d;
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  border-radius: 4px;
  margin-bottom: 28px;
  transition: background-color 0.2s ease;
}

.error-home:hover {
  background-color: #d6346e;
  color: #ffffff;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  border-top: 1px solid #f0ede6;
  padding-top: 20px;
}

.error-links a {
  font-size: 14px;
  color: #1d1d1f;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}

.error-links a:hover {
  color: #e8437d;
  border-bottom-color: #e8437d;
}

/* ============================================================
   RESPONSIVE — 响应式断点
   ============================================================ */
@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: 1fr 280px;
    gap: 28px;
  }

  .feature-item {
    grid-template-columns: 160px 1fr;
    gap: 18px;
  }

  .layout-shell {
    grid-template-columns: 260px 1fr;
    gap: 28px;
  }
}

@media (max-width: 900px) {
  .header-inner {
    padding: 14px 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #f7f5f0;
    border-bottom: 1px solid #e9e6df;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 16px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  }

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

  .nav-list a {
    display: block;
    padding: 12px 4px;
    font-size: 16px;
    border-bottom: 1px solid #f0ede6;
    border-bottom-width: 1px;
  }

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

  .nav-list a.is-current {
    border-bottom-color: #f0ede6;
    color: #e8437d;
  }

  .home-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .tags-section,
  .steps-section {
    margin-bottom: 0;
  }

  .page-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .layout-shell {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .feedback-sidebar {
    position: static;
  }

  .sidebar-left .breadcrumb,
  .sidebar-left .page-header {
    display: block;
  }

  .sidebar-left .page-layout {
    display: flex;
    flex-direction: column;
  }

  .sidebar-left .page-layout .layout-main {
    order: 2;
  }

  .sidebar-left .page-layout .layout-side {
    order: 1;
  }

  .layout-shell .breadcrumb,
  .layout-shell .page-header {
    display: block;
    max-width: none;
    padding-left: 0;
    padding-right: 0;
  }

  .layout-shell .main-content {
    order: 1;
  }

  .layout-shell .sidebar {
    order: 2;
  }

  .layout-shell {
    display: flex;
    flex-direction: column;
  }

  .tag-row {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .tag-media {
    order: -1;
    aspect-ratio: 16 / 6;
  }

  .step-list {
    grid-template-columns: 1fr;
    gap: 14px;
  }

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

  .update-group {
    grid-template-columns: 80px 1fr;
    gap: 18px;
  }

  .update-day {
    font-size: 30px;
  }
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 34px;
  }

  .hero-section {
    min-height: 360px;
  }

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

  .feature-item {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .feature-media {
    aspect-ratio: 16 / 9;
    max-height: 260px;
    overflow: hidden;
  }

  .feature-figure {
    aspect-ratio: 16 / 9;
  }

  .copyright-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
}

@media (max-width: 600px) {
  .layout-side {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .tags-section,
  .steps-section {
    margin-bottom: 0;
  }

  .update-group {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .update-date {
    text-align: left;
    display: flex;
    align-items: baseline;
    gap: 8px;
    border-bottom: 2px solid #111111;
    padding-bottom: 8px;
  }

  .update-month {
    font-size: 16px;
  }

  .update-day {
    font-size: 22px;
  }

  .error-panel {
    padding: 36px 26px;
  }

  .error-code {
    font-size: 48px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding: 12px 16px;
    gap: 12px;
  }

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

  .brand-en {
    font-size: 9px;
  }

  .inner-main,
  .breadcrumb,
  .page-header {
    padding-left: 16px;
    padding-right: 16px;
  }

  .home-layout {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-intro {
    padding-left: 16px;
    padding-right: 16px;
  }

  .footer-inner {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-content {
    padding: 40px 16px;
  }

  .hero-content h1 {
    font-size: 30px;
  }

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

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

  .btn {
    text-align: center;
  }

  .feature-item,
  .tag-row {
    padding: 16px;
  }

  .clause-item {
    padding: 14px 16px;
    gap: 12px;
  }

  .clause-num {
    width: 24px;
    height: 24px;
    font-size: 13px;
  }

  .path-links {
    flex-direction: column;
    align-items: stretch;
  }

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