/* ============================================================
   base — 全局基础样式
   ============================================================ */
:root {
  --color-bg: #faf8f5;
  --color-ink: #2b2b2b;
  --color-accent: #a33b2e;
  --color-muted: #5c6b73;
  --color-line: #e4dfd8;
  --color-card: #ffffff;
  --color-quote-bar: #a33b2e;
  --max-width: 1200px;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: #7d2c21;
  text-decoration: underline;
  text-underline-offset: 3px;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  line-height: 1.35;
  font-weight: 700;
  color: var(--color-ink);
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

blockquote {
  margin: 0;
}

figure {
  margin: 0;
}

dl,
dd {
  margin: 0;
}

/* 辅助可访问性类 */
.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 — 全站骨架布局
   ============================================================ */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
}

.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-line);
}

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

.brand-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  margin-right: 10px;
  border-radius: 2px;
}

.brand-logo:hover {
  text-decoration: none;
  color: var(--color-ink);
}

.brand-logo.is-current {
  color: var(--color-ink);
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 10px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-ink);
  border-radius: 1px;
}

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

.nav-list li a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--color-ink);
  border-radius: 4px;
  line-height: 1.5;
}

.nav-list li a:hover {
  background-color: #f2efea;
  color: var(--color-accent);
  text-decoration: none;
}

.nav-list li a.is-current {
  color: var(--color-accent);
  font-weight: 600;
}

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

.site-footer {
  background-color: #2f2f2f;
  color: #cfcfcf;
  margin-top: 64px;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
}

.footer-brand .footer-slogan {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.footer-brand .footer-desc {
  font-size: 14px;
  color: #b8b8b8;
  max-width: 460px;
  line-height: 1.7;
}

.footer-links .footer-title {
  font-size: 15px;
  color: #ffffff;
  margin-bottom: 14px;
}

.footer-links ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 24px;
}

.footer-links ul li a {
  color: #b8b8b8;
  font-size: 14px;
}

.footer-links ul li a:hover {
  color: #ffffff;
}

.footer-legal {
  grid-column: 1 / -1;
  border-top: 1px solid #4a4a4a;
  padding-top: 20px;
  margin-top: 8px;
}

.footer-legal p {
  font-size: 13px;
  color: #9a9a9a;
  margin-bottom: 4px;
  line-height: 1.6;
}

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

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 14px;
  color: var(--color-muted);
  padding: 20px 0 0;
}

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

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

.breadcrumb-sep {
  color: #b0a8a0;
}

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

/* 页面标题区（全站内页统一） */
.page-header {
  padding: 28px 0 20px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 10px;
}

.page-description {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 720px;
  line-height: 1.75;
  margin-bottom: 0;
}

/* 信息条 */
.page-info-bar {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-accent);
  border-radius: 6px;
  padding: 16px 20px;
  margin-bottom: 36px;
}

.page-info-bar dl {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px 24px;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.info-item dt {
  font-size: 13px;
  color: var(--color-muted);
}

.info-item dd {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-ink);
}

/* 内容配图 */
.content-media {
  margin: 0 0 24px;
}

.content-media img {
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.content-media figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding: 8px 2px 0;
  line-height: 1.5;
}

.content-media-inline {
  margin: 24px 0;
  max-width: 720px;
}

.content-media-primary {
  margin: 0 0 32px;
}

/* 更多链接 */
.more-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  margin-top: 16px;
  color: var(--color-accent);
}

.more-link::after {
  content: " →";
}

/* 区块标题 */
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-line);
  position: relative;
}

.section-title::before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 22px;
  background-color: var(--color-accent);
  margin-right: 10px;
  vertical-align: -3px;
  border-radius: 2px;
}

/* 引用块 */
.principle-quote {
  background-color: #ffffff;
  border-left: 4px solid var(--color-quote-bar);
  padding: 20px 24px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-ink);
  border-radius: 0 6px 6px 0;
  margin: 20px 0 0;
}

/* FAQ */
.faq-item {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  margin-bottom: 10px;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: 400;
  color: var(--color-accent);
}

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

.faq-item p {
  padding: 0 20px 16px;
  margin: 0;
  font-size: 15px;
  color: #444;
}

/* ============================================================
   pages — 首页
   ============================================================ */
.home-main {
  overflow: visible;
}

/* Hero 区 */
.hero-enter {
  position: relative;
  background-color: #2f2f2f;
  color: #ffffff;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 24px 56px;
}

.hero-title {
  font-size: 32px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
  max-width: 640px;
  line-height: 1.3;
}

.hero-lead {
  font-size: 17px;
  color: #e8e4df;
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.75;
}

.hero-quick-links {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  max-width: 760px;
}

.quick-link {
  display: block;
  background-color: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #ffffff;
  padding: 14px 16px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  transition: background-color 0.15s ease;
}

.quick-link:hover {
  background-color: rgba(255, 255, 255, 0.26);
  color: #ffffff;
  text-decoration: none;
}

/* 核心结论区 */
.core-conclusion {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 8px;
}

.conclusion-text {
  font-size: 16px;
  color: var(--color-ink);
  max-width: 760px;
  line-height: 1.75;
}

/* 版块与热帖双栏区 */
.browse-split {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 24px 8px;
}

.split-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  align-items: start;
}

.sub-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-line);
}

.board-list li,
.hot-brief-list li {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 16px 18px;
  margin-bottom: 10px;
}

.board-name {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.board-desc {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 6px;
  line-height: 1.6;
}

.board-meta {
  font-size: 13px;
  color: var(--color-muted);
}

.brief-title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.brief-focus {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 6px;
  line-height: 1.6;
}

.brief-board {
  font-size: 13px;
  color: var(--color-muted);
}

/* 站务动态区 */
.announcements {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 24px 8px;
}

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

.announce-item {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 20px;
}

.announce-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.announce-desc {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 8px;
  line-height: 1.6;
}

.announce-date {
  font-size: 13px;
  color: var(--color-muted);
}

/* 参与指南区 */
.participation-guide {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 24px 8px;
}

.guide-steps {
  counter-reset: guide-step;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.guide-step {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 20px;
  position: relative;
  counter-increment: guide-step;
}

.guide-step::before {
  content: counter(guide-step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 10px;
}

.step-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-desc {
  font-size: 14px;
  color: #4a4a4a;
  line-height: 1.6;
  margin-bottom: 0;
}

.guide-more {
  margin-top: 20px;
  font-size: 15px;
}

/* ============================================================
   pages — 内页通用骨架
   ============================================================ */
.inner-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 48px;
}

.inner-main .breadcrumb {
  max-width: var(--max-width);
}

/* ============================================================
   pages — 版块地图
   ============================================================ */
.bankuai-list,
.usage-guide,
.example-topics {
  margin-bottom: 40px;
}

.bankuai-list h2,
.usage-guide h2,
.example-topics h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-line);
}

.section-desc {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 20px;
  max-width: 720px;
  line-height: 1.7;
}

.bankuai-card {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 20px;
  margin-bottom: 14px;
}

.bankuai-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.bankuai-card-head h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0;
}

.bankuai-tag {
  display: inline-block;
  background-color: #f3ece8;
  color: var(--color-accent);
  font-size: 13px;
  padding: 2px 10px;
  border-radius: 12px;
  font-weight: 500;
}

.bankuai-card-body p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 6px;
  line-height: 1.65;
}

.bankuai-card-body p:last-child {
  margin-bottom: 0;
}

.bankuai-card-body strong {
  color: var(--color-ink);
  font-weight: 600;
}

.usage-steps {
  counter-reset: usage-step;
}

.usage-steps li {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 18px 20px;
  margin-bottom: 10px;
  position: relative;
  padding-left: 56px;
  counter-increment: usage-step;
}

.usage-steps li::before {
  content: counter(usage-step);
  position: absolute;
  left: 18px;
  top: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
}

.usage-steps h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.usage-steps p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 0;
  line-height: 1.6;
}

.topic-example-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.topic-example {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 18px;
}

.topic-example h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-accent);
}

.topic-example p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 4px;
  line-height: 1.6;
}

.topic-example p:last-child {
  margin-bottom: 0;
}

/* 相关页面侧栏 */
.related-links {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 20px;
  margin-top: 40px;
}

.related-links h2 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-line);
}

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

.related-links ul li a {
  font-size: 14px;
  color: var(--color-accent);
}

/* ============================================================
   pages — 热议榜
   ============================================================ */
.hot-briefs,
.topic-categories,
.discussion-tips {
  margin-bottom: 40px;
}

.hot-briefs h2,
.topic-categories h2,
.discussion-tips h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-line);
}

.section-note {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 20px;
  max-width: 720px;
  line-height: 1.7;
}

.brief-item {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 18px 20px;
  margin-bottom: 12px;
}

.brief-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.brief-header h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0;
}

.brief-status {
  display: inline-block;
  background-color: #f3ece8;
  color: var(--color-accent);
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 12px;
  font-weight: 500;
  flex-shrink: 0;
}

.brief-item .brief-focus {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 6px;
  line-height: 1.65;
}

.brief-item .brief-focus strong {
  color: var(--color-ink);
  font-weight: 600;
}

.brief-item .brief-board {
  font-size: 13px;
  color: var(--color-muted);
}

.brief-item .brief-board strong {
  color: var(--color-ink);
  font-weight: 600;
}

.brief-item .brief-board a {
  margin-left: 4px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.category-card {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 18px;
}

.category-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-accent);
}

.category-card p {
  font-size: 13px;
  color: #4a4a4a;
  margin-bottom: 0;
  line-height: 1.6;
}

.tips-list {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 8px 20px;
}

.tips-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line);
  font-size: 14px;
  color: #4a4a4a;
  line-height: 1.65;
}

.tips-list li:last-child {
  border-bottom: 0;
}

.tips-list strong {
  color: var(--color-ink);
  font-weight: 600;
}

.tips-more {
  margin-top: 20px;
  font-size: 14px;
}

.tips-more a {
  margin-right: 16px;
}

/* ============================================================
   pages — 参与手册
   ============================================================ */
.guide-section {
  margin-bottom: 40px;
}

.guide-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-line);
}

.section-lead {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 20px;
  max-width: 720px;
  line-height: 1.7;
}

.section-lead a {
  margin-right: 12px;
  font-weight: 600;
}

.steps-list {
  counter-reset: steps-list;
}

.step-item {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 20px;
  margin-bottom: 12px;
  position: relative;
  padding-left: 60px;
  counter-increment: steps-list;
}

.step-item::before {
  content: counter(steps-list);
  position: absolute;
  left: 18px;
  top: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
}

.step-item h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-item p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 6px;
  line-height: 1.65;
}

.step-item p:last-child {
  margin-bottom: 0;
}

.step-item .task-example {
  background-color: #f7f4f0;
  border-left: 3px solid var(--color-accent);
  padding: 10px 14px;
  font-size: 13px;
  color: #555;
  border-radius: 0 4px 4px 0;
  margin-top: 8px;
}

.advice-list li {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 16px 20px;
  margin-bottom: 10px;
}

.advice-item h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.advice-item p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 0;
  line-height: 1.65;
}

.faq-list {
  max-width: 760px;
}

.guide-media {
  margin: 40px 0 0;
  max-width: 720px;
}

.guide-media img {
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.guide-media figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding: 8px 2px 0;
}

/* ============================================================
   pages — 内容公约
   ============================================================ */
.info-bar {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-left: 4px solid var(--color-accent);
  border-radius: 6px;
  padding: 16px 20px;
  margin-bottom: 24px;
}

.info-bar dl {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px 24px;
}

.rule-figure {
  margin-bottom: 32px;
}

.rule-figure img {
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.rule-figure figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding: 8px 2px 0;
}

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

.rule-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-line);
}

.principle-list,
.prohibited-list,
.processing-list,
.appeal-list {
  max-width: 760px;
}

.principle-item,
.prohibited-item,
.processing-item,
.appeal-item {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 18px 20px;
  margin-bottom: 10px;
}

.principle-item h3,
.prohibited-item h3,
.processing-item h3,
.appeal-item h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-accent);
}

.principle-item p,
.prohibited-item p,
.processing-item p,
.appeal-item p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 0;
  line-height: 1.65;
}

.related-docs {
  margin-top: 48px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.related-card {
  display: block;
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 18px;
  color: var(--color-ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.related-card:hover {
  border-color: var(--color-accent);
  color: var(--color-ink);
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.related-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
}

.related-card p {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 0;
  line-height: 1.6;
}

/* ============================================================
   pages — 版主申请
   ============================================================ */
.role-brief {
  margin-bottom: 36px;
}

.role-brief-card {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 24px;
}

.role-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.role-brief-card > p {
  font-size: 15px;
  color: #4a4a4a;
  max-width: 720px;
  line-height: 1.7;
}

.role-figure {
  margin-top: 20px;
}

.role-figure img {
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.role-figure figcaption {
  font-size: 13px;
  color: var(--color-muted);
  padding: 8px 2px 0;
}

.duties-section,
.requirements-section,
.process-section,
.task-example-section,
.feedback-entry {
  margin-bottom: 40px;
}

.duties-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.duty-item {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 18px;
}

.duty-item h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-accent);
}

.duty-item p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 0;
  line-height: 1.65;
}

.requirements-list li {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 14px 18px;
  margin-bottom: 8px;
  font-size: 14px;
  color: #4a4a4a;
  line-height: 1.65;
}

.requirements-list strong {
  color: var(--color-ink);
  font-weight: 600;
}

.process-steps {
  counter-reset: process-steps;
}

.process-steps li {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 18px 20px;
  margin-bottom: 10px;
  position: relative;
  padding-left: 56px;
  counter-increment: process-steps;
}

.process-steps li::before {
  content: counter(process-steps);
  position: absolute;
  left: 18px;
  top: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
}

.process-steps h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.process-steps p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 0;
  line-height: 1.65;
}

.process-steps p a {
  margin-right: 12px;
  font-weight: 600;
}

.task-example-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.task-example-card {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 18px;
}

.task-example-card h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-accent);
}

.task-example-card p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 0;
  line-height: 1.65;
}

.feedback-entry {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 20px;
}

.feedback-entry p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 0;
  line-height: 1.65;
}

.feedback-entry a {
  font-weight: 600;
}

/* ============================================================
   pages — 站务公告
   ============================================================ */
.announcement-section,
.feedback-section,
.faq-section {
  margin-bottom: 40px;
}

.announcement-section h2,
.feedback-section h2,
.faq-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-line);
}

.announcement-item {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 20px;
  margin-bottom: 14px;
}

.announcement-conclusion {
  margin-bottom: 12px;
}

.announcement-conclusion h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.announcement-meta {
  font-size: 13px;
  color: var(--color-muted);
}

.announcement-detail p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 6px;
  line-height: 1.65;
}

.announcement-detail p:last-child {
  margin-bottom: 0;
}

.announcement-detail strong {
  color: var(--color-ink);
  font-weight: 600;
}

.feedback-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.feedback-item {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 18px;
}

.feedback-item h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-accent);
}

.feedback-item p {
  font-size: 14px;
  color: #4a4a4a;
  margin-bottom: 0;
  line-height: 1.65;
}

.feedback-note {
  font-size: 13px;
  color: var(--color-muted);
}

.faq-section .faq-item {
  max-width: 760px;
}

.related-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 6px;
  padding: 16px 20px;
  margin-top: 8px;
}

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

.related-links-item {
  font-size: 14px;
  color: var(--color-accent);
}

/* ============================================================
   pages — 404
   ============================================================ */
.error-main {
  flex: 1 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
}

.error-panel {
  background-color: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  padding: 48px 40px;
  text-align: center;
  max-width: 560px;
  width: 100%;
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 8px;
  line-height: 1;
}

.error-panel h1 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

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

.error-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.btn-back-home,
.btn-browse {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  min-height: 44px;
  line-height: 1.4;
}

.btn-back-home {
  background-color: var(--color-accent);
  color: #ffffff;
}

.btn-back-home:hover {
  background-color: #7d2c21;
  color: #ffffff;
  text-decoration: none;
}

.btn-browse {
  background-color: #f2efea;
  color: var(--color-ink);
}

.btn-browse:hover {
  background-color: #e8e3dc;
  color: var(--color-ink);
  text-decoration: none;
}

/* ============================================================
   responsive — 响应式适配
   ============================================================ */
@media (max-width: 992px) {
  .hero-quick-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

  .duties-grid,
  .task-example-grid {
    grid-template-columns: 1fr;
  }

  .topic-example-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .site-nav {
    padding: 0 16px;
    min-height: 56px;
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: flex;
  }

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

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

  .nav-list li a {
    padding: 12px 8px;
    font-size: 16px;
    border-bottom: 1px solid #f0ece7;
  }

  .nav-list li:last-child a {
    border-bottom: 0;
  }

  .hero-content {
    padding: 48px 16px 40px;
  }

  .hero-title {
    font-size: 26px;
  }

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

  .hero-quick-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .quick-link {
    padding: 12px 10px;
    font-size: 14px;
  }

  .core-conclusion,
  .browse-split,
  .announcements,
  .participation-guide {
    padding-left: 16px;
    padding-right: 16px;
  }

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

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

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

  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 16px 24px;
  }

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

  .inner-main {
    padding: 0 16px 40px;
  }

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

  .page-info-bar dl,
  .info-bar dl {
    grid-template-columns: 1fr 1fr;
  }

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

  .topic-example-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

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

  .page-info-bar dl,
  .info-bar dl {
    grid-template-columns: 1fr;
  }

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

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

  .btn-back-home,
  .btn-browse {
    text-align: center;
  }
}