/* =========================================================
   黑料 官网 · 全站样式表
   视觉方向：手工艺目录风
   配色：米白纸感底色 / 木棕 / 墨绿
   ========================================================= */

/* =========================================================
   Base —— 变量、重置、全局基础
   ========================================================= */

:root {
  --color-bg: #faf7f2;
  --color-primary: #2f4f4f;
  --color-secondary: #5c4033;
  --color-accent: #b08968;
  --color-line: #e8e0d2;
  --color-text: #3d3a35;
  --color-text-light: #6f6a61;
  --color-white: #ffffff;
  --color-card-bg: #fffdf8;
  --color-hover-bg: #f4efe6;

  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;

  --container-width: 1100px;
  --container-padding: 24px;
  --content-width: 760px;
  --sidebar-width: 280px;

  --radius-sm: 4px;
  --radius-md: 8px;

  --shadow-card: 0 1px 3px rgba(60, 55, 45, 0.08);
  --shadow-card-hover: 0 4px 14px rgba(60, 55, 45, 0.12);

  --transition-base: 0.2s ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

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

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-secondary);
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

h4 {
  font-size: 16px;
}

p {
  margin-bottom: 12px;
}

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

/* =========================================================
   Layout —— 页头、页脚、容器、栅格
   ========================================================= */

/* ---------- 页头 ---------- */

.site-header {
  background-color: var(--color-primary);
  border-bottom: 3px solid var(--color-accent);
}

.site-nav {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
}

.brand-link {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.brand-link:hover {
  color: #d8cfc0;
}

.brand-name {
  display: inline-block;
}

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

.nav-list li a {
  display: block;
  padding: 8px 12px;
  font-size: 15px;
  color: #d8e0dc;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.nav-list li a:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.12);
}

.nav-list li a.is-current {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.18);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.nav-toggle:hover {
  background-color: rgba(255, 255, 255, 0.12);
}

.nav-toggle-icon {
  display: block;
  position: relative;
  width: 22px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
}

.nav-toggle-icon::before {
  top: -7px;
}

.nav-toggle-icon::after {
  top: 7px;
}

/* ---------- 主体通用 ---------- */

.site-main {
  min-height: 60vh;
}

.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px var(--container-padding) 56px;
}

/* ---------- 面包屑 ---------- */

.breadcrumb {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

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

.breadcrumb a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.breadcrumb-sep {
  color: var(--color-accent);
  margin: 0 2px;
}

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

/* ---------- 页头标题区 ---------- */

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

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

.page-description {
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 640px;
  line-height: 1.7;
}

/* ---------- 页脚 ---------- */

.site-footer {
  background-color: var(--color-secondary);
  color: #e8e0d2;
  margin-top: 48px;
}

.footer-columns {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px var(--container-padding) 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 12px;
  letter-spacing: 0.03em;
}

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

.footer-col ul li a {
  font-size: 14px;
  color: #c8bfae;
  transition: color var(--transition-base);
}

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

.footer-bottom {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px var(--container-padding) 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #b8ae9c;
  margin-bottom: 4px;
  line-height: 1.6;
}

/* ---------- 布局容器 ---------- */

.layout-shell {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px var(--container-padding) 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--sidebar-width);
  gap: 40px;
  align-items: start;
}

.layout-shell > .main-content {
  min-width: 0;
}

.layout-shell > .sidebar,
.layout-shell > .side-bar {
  min-width: 0;
}

/* 带侧栏的页面布局 */
.page-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px var(--container-padding) 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--sidebar-width);
  gap: 40px;
  align-items: start;
}

.page-layout > .main-content {
  min-width: 0;
}

.page-layout > .sidebar {
  min-width: 0;
}

/* ---------- 首页主体布局 ---------- */

.home-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding) 48px;
}

.home-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 40px;
  align-items: start;
  margin-top: 40px;
}

.home-sidebar {
  min-width: 0;
}

.home-main-content {
  min-width: 0;
}

/* =========================================================
   Components —— 通用组件
   ========================================================= */

/* ---------- 图片容器 ---------- */

.content-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-line);
}

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

.content-media figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 8px 12px;
  line-height: 1.5;
  background-color: var(--color-card-bg);
  border-top: 1px solid var(--color-line);
}

.content-media-primary {
  margin-bottom: 20px;
}

.content-media-inline {
  margin: 16px 0 24px;
}

/* ---------- 卡片通用 ---------- */

.board-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.board-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

/* ---------- 按钮 ---------- */

.btn-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base);
}

.btn-action:hover {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

.btn-start-post {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-secondary);
  background-color: transparent;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.btn-start-post:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn-guide {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base);
}

.btn-guide:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-back-home {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base);
}

.btn-back-home:hover {
  background-color: var(--color-secondary);
  color: var(--color-white);
}

/* ---------- 复制链接按钮 ---------- */

.copy-link,
.copy-link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 4px 14px;
  font-size: 13px;
  color: var(--color-primary);
  background-color: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.copy-link:hover,
.copy-link-btn:hover {
  background-color: var(--color-hover-bg);
  border-color: var(--color-accent);
}

/* ---------- 侧栏通用 ---------- */

.sidebar,
.side-bar {
  min-width: 0;
}

.sidebar-block,
.sidebar-card,
.side-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 24px;
}

.sidebar-block h3,
.sidebar-card h3,
.side-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-line);
}

.sidebar-links li,
.side-links li {
  margin-bottom: 10px;
}

.sidebar-links li a,
.side-links li a {
  font-size: 14px;
  color: var(--color-text);
  display: inline-block;
  padding: 4px 0;
}

.sidebar-links li a:hover,
.side-links li a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.sidebar-note,
.side-note {
  background-color: var(--color-hover-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 16px;
  font-size: 14px;
  line-height: 1.7;
}

.sidebar-note p,
.side-note p {
  margin-bottom: 8px;
}

.sidebar-note a,
.side-note a {
  font-weight: 600;
}

/* ---------- 相关链接导航 ---------- */

.related-links {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-right: 4px;
}

.related-links-item {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 4px 16px;
  font-size: 14px;
  color: var(--color-primary);
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

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

/* =========================================================
   Pages —— 首页
   ========================================================= */

/* ---------- 首屏 ---------- */

.hero-section {
  padding: 56px 0 24px;
}

.hero-content {
  max-width: 720px;
}

.hero-content h1 {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 16px;
  line-height: 1.35;
}

.hero-description {
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.btn-start-post {
  margin-top: 4px;
}

.hero-figure {
  margin-top: 32px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-line);
}

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

/* ---------- 版块卡片（首页侧栏） ---------- */

.board-card-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.board-card-list .board-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.board-number {
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 400;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  display: inline-block;
}

.board-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.board-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 8px;
}

.board-card a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  align-self: flex-start;
}

.board-card a:hover {
  text-decoration: underline;
}

/* ---------- 热帖列表（首页右侧） ---------- */

.hot-list-section {
  margin-bottom: 36px;
}

.hot-list-section h2,
.news-category-section h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-line);
}

.hot-list {
  display: flex;
  flex-direction: column;
}

.hot-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line);
}

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

.hot-item h3 {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
  flex: 1;
  min-width: 0;
}

.hot-item h3 a {
  color: var(--color-text);
}

.hot-item h3 a:hover {
  color: var(--color-primary);
}

.post-meta {
  font-size: 13px;
  color: var(--color-text-light);
  white-space: nowrap;
}

/* ---------- 公告分类（首页右侧） ---------- */

.news-category-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.news-category-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  transition: box-shadow var(--transition-base);
}

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

.news-category-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.news-category-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 6px;
}

.news-category-item a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

/* ---------- 发帖引导横幅 ---------- */

.post-guide-banner {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin-top: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.post-guide-banner h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.post-guide-banner p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* =========================================================
   Pages —— 版块列表页
   ========================================================= */

.board-index {
  margin-bottom: 40px;
}

.board-index h2,
.posting-notice h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 8px;
}

.section-intro {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 20px;
  line-height: 1.7;
}

.board-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.board-card-media {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-line);
  margin-bottom: 14px;
}

.board-card-media img {
  width: 100%;
  height: 140px;
  object-fit: cover;
}

.board-card-body {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.board-card-body .board-number {
  font-size: 13px;
}

.board-card-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-secondary);
}

.board-card-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 8px;
  flex: 1;
}

.board-expand-btn {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  min-height: 36px;
  padding: 4px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: transparent;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.board-expand-btn:hover {
  background-color: var(--color-hover-bg);
  border-color: var(--color-accent);
}

.posting-notice {
  background-color: var(--color-hover-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 40px;
}

.posting-notice h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.posting-notice p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 8px;
}

.posting-notice a {
  font-weight: 600;
}

/* =========================================================
   Pages —— 热帖页
   ========================================================= */

.hot-timeline {
  margin-bottom: 40px;
}

.section-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-line);
}

.hot-timeline .hot-item {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
}

.hot-item-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hot-date {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--color-text-light);
}

.hot-board-tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 2px 10px;
  font-size: 12px;
  color: var(--color-primary);
  background-color: var(--color-hover-bg);
  border-radius: var(--radius-sm);
}

.hot-board-tag:hover {
  background-color: var(--color-line);
}

.hot-item-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-secondary);
}

.hot-item-title a {
  color: var(--color-secondary);
}

.hot-item-title a:hover {
  color: var(--color-primary);
}

.hot-item-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 4px;
}

.timeline-figure {
  margin-top: 24px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-line);
}

.timeline-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.timeline-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 8px 12px;
  background-color: var(--color-card-bg);
}

.heat-note {
  background-color: var(--color-hover-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}

.heat-note h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 8px;
}

.heat-note p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 8px;
}

/* =========================================================
   Pages —— 公告页
   ========================================================= */

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

.news-section .section-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 8px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-line);
}

.news-section .section-intro {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.news-timeline {
  display: flex;
  flex-direction: column;
}

.news-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
}

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

.news-item-index {
  flex-shrink: 0;
  width: 48px;
  text-align: center;
}

.news-number {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--color-accent);
  line-height: 1;
}

.news-item-body {
  flex: 1;
  min-width: 0;
}

.news-item-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.news-item-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 8px;
}

.news-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

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

.news-reading-guide {
  background-color: var(--color-hover-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-top: 32px;
}

.news-reading-guide h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 8px;
}

.reading-guide-text {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.news-row {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-line);
}

.news-row:last-child {
  border-bottom: none;
}

.news-date {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--color-text-light);
  display: block;
  margin-bottom: 4px;
}

.news-row-title {
  font-size: 15px;
  font-weight: 500;
}

.news-row-title a {
  color: var(--color-text);
}

.news-row-title a:hover {
  color: var(--color-primary);
}

.news-row-link {
  font-size: 13px;
  color: var(--color-primary);
}

/* =========================================================
   Pages —— 新手指南页
   ========================================================= */

.guide-layout {
  grid-template-columns: minmax(0, 1fr) var(--sidebar-width);
}

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

.steps-section h2,
.operation-section h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 8px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.step-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base);
}

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

.step-media {
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-line);
}

.step-media img {
  width: 100%;
  height: 120px;
  object-fit: cover;
}

.step-body {
  padding: 16px 18px 18px;
}

.step-number {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--color-accent);
  display: block;
  margin-bottom: 4px;
}

.step-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 6px;
}

.step-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

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

.operation-list {
  margin-top: 16px;
}

.operation-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line);
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

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

.operation-list li h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 4px;
  min-width: 120px;
}

.operation-list li p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 0;
  flex: 1;
}

.operation-tip {
  background-color: var(--color-hover-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 14px;
  line-height: 1.7;
}

.operation-tip a {
  font-weight: 600;
}

/* =========================================================
   Pages —— 规则页
   ========================================================= */

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

.rules-section h2,
.account-section h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 8px;
}

.section-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 20px;
}

.rule-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.rule-item {
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}

.rule-number {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--color-accent);
  line-height: 1.4;
  flex-shrink: 0;
  min-width: 32px;
}

.rule-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.rule-body p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 0;
}

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

.account-blocks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 16px;
}

.account-block {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 18px;
}

.account-block h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 6px;
}

.account-block p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 0;
}

.appeal-note {
  background-color: var(--color-hover-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.7;
}

.appeal-note a {
  font-weight: 600;
  margin-right: 12px;
}

/* =========================================================
   Pages —— 关于页
   ========================================================= */

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

.about-section h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-line);
}

.about-section p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 12px;
  max-width: 720px;
}

.about-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-line);
  margin: 20px 0;
}

.about-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.about-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  padding: 8px 12px;
  background-color: var(--color-card-bg);
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.boundary-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 18px;
}

.boundary-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 6px;
}

.boundary-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

.principle-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
}

.principle-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.principle-item h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.principle-item p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 0;
}

.related-list {
  margin-top: 12px;
}

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

.related-list li a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
}

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

/* =========================================================
   Pages —— 反馈页
   ========================================================= */

.feedback-channels {
  margin-bottom: 40px;
}

.feedback-channels h2,
.feedback-process h2,
.feedback-notes h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 8px;
}

.channel-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.channel-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.channel-number {
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--color-accent);
}

.channel-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-secondary);
}

.channel-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
  flex: 1;
}

.channel-card a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

.channel-card a:hover {
  text-decoration: underline;
}

.feedback-process {
  margin-bottom: 40px;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.process-step {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.step-mark {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--color-accent);
  display: block;
  margin-bottom: 8px;
}

.process-step h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 4px;
}

.process-step p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 0;
}

.feedback-notes {
  background-color: var(--color-hover-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}

.feedback-notes h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.note-list {
  padding-left: 18px;
}

.note-list li {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 6px;
  list-style: disc;
}

/* =========================================================
   Pages —— 404 页
   ========================================================= */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 48px var(--container-padding);
}

.error-section {
  text-align: center;
  max-width: 520px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 48px 40px;
  box-shadow: var(--shadow-card);
}

.error-code {
  font-family: var(--font-serif);
  font-size: 64px;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-section h1 {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 24px;
}

/* =========================================================
   Responsive —— 响应式断点
   ========================================================= */

/* ---------- 1024px 断点 ---------- */

@media (max-width: 1024px) {
  .layout-shell,
  .page-layout {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 28px;
  }

  .home-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
    gap: 28px;
  }

  .channel-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .account-blocks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 768px 断点 ---------- */

@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
  }

  .site-nav {
    flex-wrap: wrap;
    min-height: 56px;
    padding-top: 6px;
    padding-bottom: 6px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-list {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 8px 0 12px;
    gap: 2px;
  }

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

  .nav-list li a {
    padding: 12px 14px;
    font-size: 16px;
    border-radius: var(--radius-sm);
  }

  /* 内页布局切换为单列 */
  .layout-shell,
  .page-layout {
    display: block;
    padding: 20px 16px 40px;
  }

  .layout-shell > .main-content,
  .page-layout > .main-content {
    margin-bottom: 32px;
  }

  .layout-shell > .sidebar,
  .layout-shell > .side-bar,
  .page-layout > .sidebar {
    margin-top: 32px;
  }

  /* 首页布局：正文在前，侧栏在后 */
  .home-layout {
    display: flex;
    flex-direction: column;
    gap: 32px;
    margin-top: 28px;
  }

  .home-sidebar {
    order: 2;
  }

  .home-main-content {
    order: 1;
  }

  .hero-section {
    padding: 36px 0 16px;
  }

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

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

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

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

  .operation-list li {
    flex-direction: column;
    gap: 4px;
  }

  .operation-list li h3 {
    min-width: 0;
  }

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

  .account-blocks {
    grid-template-columns: 1fr;
  }

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

  .process-steps {
    grid-template-columns: 1fr;
  }

  .footer-columns {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    padding: 32px 16px 20px;
  }

  .footer-bottom {
    padding: 14px 16px 20px;
  }

  .post-guide-banner {
    flex-direction: column;
    align-items: flex-start;
    padding: 20px;
  }
}

/* ---------- 480px 断点 ---------- */

@media (max-width: 480px) {
  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 19px;
  }

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

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

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

  .btn-action {
    width: 100%;
  }

  .btn-start-post {
    width: 100%;
  }

  .hot-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .post-meta {
    white-space: normal;
  }

  .news-item {
    gap: 12px;
  }

  .news-item-index {
    width: 36px;
  }

  .news-number {
    font-size: 18px;
  }

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

  .error-section {
    padding: 32px 20px;
  }

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

  .process-steps {
    grid-template-columns: 1fr;
  }
}