/* ============================================================
   海角社区 · 全站样式表
   站点：spzkah.com
   说明：本样式表服务于已锁定的整站真实 DOM，覆盖首页、
         五个内页与 404 页面。代码按 base、layout、components、
         pages、responsive 分组，便于维护。
   ============================================================ */

/* ============================================================
   1. base — 基础变量、Reset、字体与通用元素
   ============================================================ */
:root {
  color-scheme: light;

  /* 色彩系统 */
  --color-bg: #f5f6f8;
  --color-panel: #ffffff;
  --color-text: #1f2933;
  --color-text-soft: #6b7280;
  --color-accent: #0e7490;
  --color-success: #2f7d55;
  --color-warning: #a16207;
  --color-border: #d7dde5;

  /* 布局尺寸 */
  --container-width: 1120px;
  --read-width: 860px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  /* 过渡 */
  --transition-fast: 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: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img,
figure {
  display: block;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

a:hover {
  color: #155e75;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

ul,
ol {
  list-style: none;
}

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

h1,
h2,
h3,
h4 {
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.4;
}

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

/* ============================================================
   2. layout — 全站骨架布局
      .site-header / .site-nav / .site-main / .site-footer
   ============================================================ */

/* --- 页头 --- */
.site-header {
  background-color: var(--color-panel);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}

.site-brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
}

.site-brand:hover {
  color: var(--color-accent);
}

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

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

.nav-item a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 0.9375rem;
  color: var(--color-text-soft);
  border-radius: var(--radius-md);
  border-bottom: 2px solid transparent;
}

.nav-item a:hover {
  color: var(--color-text);
  background-color: #f0f2f5;
}

.nav-item.is-current a {
  color: var(--color-accent);
  font-weight: 600;
  border-bottom-color: var(--color-accent);
}

/* 移动端导航按钮（默认隐藏） */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  font-size: 0.9rem;
  color: var(--color-text);
  cursor: pointer;
  min-height: 44px;
}

.nav-toggle:hover {
  background-color: #f0f2f5;
}

.nav-toggle-icon {
  display: block;
  width: 18px;
  height: 2px;
  background-color: var(--color-text);
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
}

.nav-toggle-icon::before {
  top: -6px;
}

.nav-toggle-icon::after {
  top: 6px;
}

/* --- 主内容区 --- */
.site-main {
  min-height: 60vh;
}

/* 首页主区 */
.home-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 56px;
}

/* 内页主区 */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 28px 24px 64px;
  width: 100%;
}

/* 404 主区 */
.error-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 72px;
}

/* --- 面包屑 --- */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-text-soft);
  margin-bottom: 20px;
}

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

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

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

.breadcrumb-sep {
  color: var(--color-border);
}

/* --- 页头标题区（内页） --- */
.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.page-description {
  font-size: 1rem;
  color: var(--color-text-soft);
  max-width: var(--read-width);
}

/* --- 页脚 --- */
.site-footer {
  background-color: var(--color-panel);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px 24px;
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.footer-brand {
  flex: 1 1 280px;
  max-width: 360px;
}

.footer-site-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.footer-tagline {
  font-size: 0.9375rem;
  color: var(--color-text);
  margin-bottom: 8px;
}

.footer-boundary {
  font-size: 0.8125rem;
  color: var(--color-text-soft);
  line-height: 1.6;
}

.footer-links-group {
  display: flex;
  gap: 56px;
  flex-wrap: wrap;
}

.footer-links-col {
  min-width: 140px;
}

.footer-col-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

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

.footer-links a {
  font-size: 0.875rem;
  color: var(--color-text-soft);
}

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

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 16px 24px;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-soft);
}

.footer-bottom p {
  max-width: var(--container-width);
  margin: 0 auto;
}

/* ============================================================
   3. components — 通用组件
      section-title / data-table / cards / faq / figure
   ============================================================ */

/* --- 通用区块标题 --- */
.section-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

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

.section-intro {
  font-size: 0.9375rem;
  color: var(--color-text-soft);
  margin-bottom: 20px;
  max-width: var(--read-width);
}

/* --- 通用表格 --- */
.data-table {
  width: 100%;
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
}

.data-table thead th {
  background-color: #eef1f4;
  font-size: 0.875rem;
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  white-space: nowrap;
}

.data-table tbody td {
  font-size: 0.875rem;
  line-height: 1.6;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

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

.data-table tbody tr:hover {
  background-color: #fafbfc;
}

/* 表格横向滚动容器 */
.table-scroll-wrap,
.table-wrap,
.table-scroll {
  overflow-x: auto;
}

/* --- 卡片通用样式 --- */
.card-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

/* --- 状态块 --- */
.result-card {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.result-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.result-card p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-soft);
}

.result-card-recorded {
  border-top-color: var(--color-warning);
}

.result-card-processing {
  border-top-color: var(--color-accent);
}

.result-card-done {
  border-top-color: var(--color-success);
}

/* --- 折叠区（原生 details） --- */
.faq-item {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-item summary {
  padding: 14px 18px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.faq-item summary:hover {
  background-color: #fafbfc;
}

.faq-item summary::-webkit-details-marker {
  color: var(--color-accent);
}

.faq-item[open] summary {
  border-bottom: 1px solid var(--color-border);
}

.faq-item p {
  padding: 14px 18px;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-text-soft);
}

/* --- 图片与图注 --- */
figcaption {
  font-size: 0.8125rem;
  color: var(--color-text-soft);
  text-align: center;
  margin-top: 8px;
  line-height: 1.5;
}

/* 通用图片容器约束 */
figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

/* ============================================================
   4. pages — 各页面业务模块样式
   ============================================================ */

/* ============================================================
   4.1 首页 index.html
   ============================================================ */

/* --- 站点事实条 --- */
.home-fact-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 28px;
}

.fact-bar-copy {
  flex: 1 1 auto;
}

.fact-statement {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--color-text);
  max-width: 640px;
}

.fact-media {
  flex: 0 0 220px;
}

.fact-media img {
  border-radius: var(--radius-md);
}

/* 首页主视觉图 */
.content-media {
  margin-top: 20px;
}

.content-media-primary img {
  max-height: 320px;
  width: 100%;
  object-fit: cover;
}

/* --- 三列引导信息板 --- */
.home-guide-board {
  margin-bottom: 40px;
}

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

.guide-col {
  display: flex;
  flex-direction: column;
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.guide-col-title {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.guide-actions {
  display: flex;
  flex-direction: column;
}

.guide-actions li {
  margin-bottom: 4px;
}

.guide-actions a {
  display: block;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  border-left: 3px solid transparent;
}

.guide-actions a:hover {
  background-color: #f0f7f9;
  border-left-color: var(--color-accent);
  color: var(--color-accent);
}

.guide-col.guide-local {
  background-color: #f0f7f9;
}

.guide-local .local-state-empty {
  font-size: 0.9375rem;
  color: var(--color-text-soft);
  padding: 12px 0;
}

.guide-local .local-hint {
  font-size: 0.8125rem;
  color: var(--color-text-soft);
  line-height: 1.6;
  border-top: 1px dashed var(--color-border);
  padding-top: 12px;
}

/* --- 版块参与方式表 --- */
.home-forum-section {
  margin-bottom: 40px;
}

/* 版块参与方式表（首页） */
.forum-participation-table {
  min-width: 640px;
}

/* --- 步骤条：主题走向结论 --- */
.home-path-section {
  margin-bottom: 40px;
}

.path-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  counter-reset: path-step;
}

.path-step {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  counter-increment: path-step;
}

.path-step::before {
  content: counter(path-step);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.path-step-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.path-step-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-text-soft);
}

/* --- 下一步入口条 --- */
.home-next-steps {
  margin-bottom: 8px;
}

.next-step-links {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.next-link {
  display: block;
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.next-link:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(14, 116, 144, 0.08);
  color: var(--color-accent);
}

/* ============================================================
   4.2 内页通用结构修正
   ============================================================ */

/* 内页各 section 统一间距 */
.inner-main > section {
  margin-bottom: 40px;
}

/* ============================================================
   4.3 话题分区页 hjsq/fenqu.html
   ============================================================ */
.page-fenqu .usage-tip {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 22px;
}

.page-fenqu .usage-tip p {
  font-size: 0.9375rem;
  color: var(--color-text-soft);
}

.page-fenqu .section-figure {
  max-width: var(--read-width);
  margin: 20px auto 32px;
}

/* 版块与内容边界对照表 */
.board-table {
  min-width: 640px;
}

/* 标签与正式分类关系 */
.tag-relation-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.relation-card {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
}

.relation-card p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-text-soft);
}

.relation-card p + p {
  margin-top: 10px;
}

/* 发错位置典型表现 */
.misplace-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.misplace-card {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.misplace-card .card-scene {
  font-size: 0.875rem;
  color: var(--color-text);
  margin-bottom: 8px;
}

.misplace-card .card-suggestion {
  font-size: 0.8125rem;
  color: var(--color-text-soft);
  line-height: 1.6;
  background-color: #f8fafc;
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

/* 页面底部相关链接 */
.section-related-links .related-link-list li {
  margin-bottom: 8px;
}

.section-related-links .related-link-list a {
  font-size: 0.9375rem;
}

/* ============================================================
   4.4 处置流程页 hjsq/jiejue.html
   ============================================================ */

.page-jiejue .page-intro {
  background-color: var(--color-panel);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
}

.page-jiejue .page-intro p {
  font-size: 0.9375rem;
  color: var(--color-text-soft);
}

/* 处置流程表格 */
.process-table {
  min-width: 720px;
  width: 100%;
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
}

.process-table thead th {
  background-color: #eef1f4;
  font-size: 0.875rem;
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.process-table tbody td {
  font-size: 0.875rem;
  line-height: 1.6;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

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

.process-table tbody tr:hover {
  background-color: #fafbfc;
}

/* 处理结果展示区 */
.result-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.process-figure {
  max-width: var(--read-width);
  margin: 0 auto;
}

/* 相关指南链接区 */
.guide-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.guide-item {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: border-color var(--transition-fast);
}

.guide-item:hover {
  border-color: var(--color-accent);
}

.guide-item a {
  font-size: 0.9375rem;
  font-weight: 500;
}

.guide-item span {
  font-size: 0.8125rem;
  color: var(--color-text-soft);
}

/* ============================================================
   4.5 行为准则页 hjsq/guifan.html
   ============================================================ */

.page-guifan .rule-purpose {
  background-color: var(--color-panel);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  border: 1px solid var(--color-border);
}

.page-guifan .rule-purpose p {
  font-size: 0.9375rem;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.page-guifan .rule-purpose strong {
  color: var(--color-text);
}

/* 规则表格 */
.rule-table {
  min-width: 720px;
  width: 100%;
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
}

.rule-table thead th {
  background-color: #eef1f4;
  font-size: 0.875rem;
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.rule-table tbody td {
  font-size: 0.875rem;
  line-height: 1.6;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

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

.rule-table tbody tr:hover {
  background-color: #fafbfc;
}

.rule-figure {
  max-width: var(--read-width);
  margin: 20px auto 0;
}

/* 修正路径 */
.correction-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.correction-card {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
}

.correction-card h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.correction-card p {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--color-text-soft);
}

.correction-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background-color: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 10px;
}

/* FAQ 区 */
.page-guifan .faq-section {
  max-width: var(--read-width);
}

/* 相关指南 */
.page-guifan .guide-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.page-guifan .guide-link {
  display: block;
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}

.page-guifan .guide-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ============================================================
   4.6 使用帮助页 hjsq/bangzhu.html
   ============================================================ */

.page-bangzhu .reading-start {
  max-width: var(--read-width);
}

.start-list {
  display: grid;
  gap: 14px;
}

.start-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.start-number {
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9375rem;
  font-weight: 600;
}

.start-content {
  flex: 1;
}

.start-content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.start-content p {
  font-size: 0.875rem;
  color: var(--color-text-soft);
  line-height: 1.6;
}

.start-link {
  align-self: center;
  font-size: 0.875rem;
  white-space: nowrap;
  font-weight: 500;
}

/* 本地记录区 */
.page-bangzhu .local-record {
  max-width: var(--read-width);
}

.record-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 18px;
}

.record-item {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px;
}

.record-item h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.record-item p {
  font-size: 0.8125rem;
  color: var(--color-text-soft);
  line-height: 1.6;
}

.record-clear-zone {
  display: flex;
  align-items: center;
  gap: 16px;
  background-color: #fef9ec;
  border: 1px solid #e7d8a8;
  border-radius: var(--radius-md);
  padding: 16px 18px;
  flex-wrap: wrap;
}

.clear-note {
  font-size: 0.8125rem;
  color: var(--color-text-soft);
  flex: 1;
  min-width: 200px;
}

.clear-record-btn {
  background-color: var(--color-warning);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-size: 0.875rem;
  cursor: pointer;
  min-height: 44px;
  transition: background-color var(--transition-fast);
}

.clear-record-btn:hover {
  background-color: #7c4a07;
}

/* 帮助页配图 */
.help-media {
  max-width: var(--read-width);
  margin: 20px auto 0;
}

/* FAQ 组 */
.page-bangzhu .faq-group {
  max-width: var(--read-width);
}

/* 相关页面入口 */
.related-help {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: var(--read-width);
}

.related-help h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.related-help > p {
  font-size: 0.875rem;
  color: var(--color-text-soft);
  margin-bottom: 14px;
}

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

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

/* ============================================================
   4.7 站务与反馈页 hjsq/fankui.html
   ============================================================ */

.page-fankui .content-section {
  max-width: var(--read-width);
}

/* 反馈自查清单 */
.checklist-list {
  display: grid;
  gap: 10px;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
}

.check-box {
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-sm);
  margin-top: 4px;
  background-color: #fff;
}

.check-content p {
  font-size: 0.875rem;
  color: var(--color-text-soft);
  line-height: 1.6;
}

.check-content .check-title {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}

/* 反馈字段说明区 */
.field-sample-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
}

.field-sample-figure {
  margin: 0;
}

.field-cards {
  display: grid;
  gap: 12px;
}

.field-card {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.field-card h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.field-card p {
  font-size: 0.8125rem;
  color: var(--color-text-soft);
  line-height: 1.6;
}

/* 站务边界 */
.boundary-list {
  display: grid;
  gap: 10px;
}

.boundary-item {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
}

.boundary-item p {
  font-size: 0.875rem;
  color: var(--color-text-soft);
  line-height: 1.6;
}

.boundary-item .boundary-type {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.boundary-item a {
  font-size: 0.875rem;
}

/* 周边页面索引 */
.guide-link-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.guide-link-card {
  display: block;
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  transition: border-color var(--transition-fast);
}

.guide-link-card:hover {
  border-color: var(--color-accent);
}

.guide-link-name {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.guide-link-desc {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-soft);
  line-height: 1.5;
}

/* ============================================================
   4.8 404 页面
   ============================================================ */

.error-panel {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  text-align: center;
  margin-bottom: 32px;
}

.error-code {
  font-size: 4rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.2;
  margin-bottom: 8px;
}

.error-panel h1 {
  font-size: 1.375rem;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 0.9375rem;
  color: var(--color-text-soft);
  max-width: 480px;
  margin: 0 auto 20px;
}

.error-back-btn {
  display: inline-block;
  background-color: var(--color-accent);
  color: #fff;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 500;
  min-height: 44px;
  line-height: 24px;
}

.error-back-btn:hover {
  background-color: #155e75;
  color: #fff;
}

.error-links {
  background-color: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: 640px;
  margin: 0 auto;
}

.error-links h2 {
  font-size: 1.0625rem;
  margin-bottom: 16px;
}

.error-link-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.error-link-list a {
  font-size: 0.9375rem;
  font-weight: 500;
}

.error-link-list span {
  font-size: 0.8125rem;
  color: var(--color-text-soft);
}

/* ============================================================
   5. responsive — 响应式
   ============================================================ */

/* --- 平板（≤1024px） --- */
@media (max-width: 1024px) {
  .guide-board-columns {
    grid-template-columns: 1fr 1fr;
  }

  .guide-board-columns .guide-col:last-child {
    grid-column: 1 / -1;
  }

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

  .next-step-links {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

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

/* --- 手机端（≤768px） --- */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
    min-height: 56px;
  }

  .site-brand {
    font-size: 1rem;
  }

  /* 移动导航：显示按钮，列表默认收起 */
  .nav-toggle {
    display: inline-flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background-color: var(--color-panel);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    gap: 0;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.06);
  }

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

  .nav-item a {
    display: block;
    padding: 12px 12px;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
  }

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

  .nav-item.is-current a {
    border-bottom: 1px solid var(--color-border);
    background-color: #f0f7f9;
  }

  /* 页头相对定位，使下拉列表定位正确 */
  .site-header {
    position: relative;
  }

  /* 主内容区 */
  .home-main,
  .inner-main,
  .error-main {
    padding: 20px 16px 48px;
  }

  /* 面包屑 */
  .breadcrumb {
    font-size: 0.8125rem;
    margin-bottom: 16px;
  }

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

  .page-description {
    font-size: 0.9375rem;
  }

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

  /* 首页事实条 */
  .home-fact-bar {
    flex-direction: column;
    gap: 16px;
    padding: 20px;
  }

  .fact-media {
    flex: 0 0 auto;
    width: 100%;
  }

  .fact-statement {
    font-size: 1rem;
  }

  /* 三列引导 */
  .guide-board-columns {
    grid-template-columns: 1fr;
  }

  .guide-board-columns .guide-col:last-child {
    grid-column: auto;
  }

  /* 版块表格：行转卡片 */
  .data-table thead {
    display: none;
  }

  .data-table,
  .data-table tbody,
  .data-table tr,
  .data-table td {
    display: block;
    width: 100%;
  }

  .data-table tbody tr {
    background-color: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    padding: 8px 0;
  }

  .data-table tbody tr:hover {
    background-color: var(--color-panel);
  }

  .data-table tbody td {
    border-bottom: none;
    padding: 8px 16px;
    position: relative;
    padding-left: 40%;
    text-align: right;
    font-size: 0.875rem;
  }

  .data-table tbody td::before {
    content: attr(data-label);
    position: absolute;
    left: 16px;
    top: 8px;
    font-weight: 600;
    color: var(--color-text);
    text-align: left;
    white-space: nowrap;
  }

  .data-table tbody td:first-child {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.9375rem;
  }

  /* 步骤条 */
  .path-steps {
    grid-template-columns: 1fr;
  }

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

  /* 分区页 */
  .tag-relation-grid {
    grid-template-columns: 1fr;
  }

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

  /* 流程页 */
  .process-table thead {
    display: none;
  }

  .process-table,
  .process-table tbody,
  .process-table tr,
  .process-table td {
    display: block;
    width: 100%;
  }

  .process-table tbody tr {
    background-color: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    padding: 8px 0;
  }

  .process-table tbody tr:hover {
    background-color: var(--color-panel);
  }

  .process-table tbody td {
    border-bottom: none;
    padding: 8px 16px;
    position: relative;
    padding-left: 40%;
    text-align: right;
    font-size: 0.875rem;
  }

  .process-table tbody td::before {
    content: attr(data-label);
    position: absolute;
    left: 16px;
    top: 8px;
    font-weight: 600;
    color: var(--color-text);
    text-align: left;
    white-space: nowrap;
  }

  .process-table tbody td:first-child {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.9375rem;
  }

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

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

  /* 规则页 */
  .rule-table thead {
    display: none;
  }

  .rule-table,
  .rule-table tbody,
  .rule-table tr,
  .rule-table td {
    display: block;
    width: 100%;
  }

  .rule-table tbody tr {
    background-color: var(--color-panel);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    padding: 8px 0;
  }

  .rule-table tbody tr:hover {
    background-color: var(--color-panel);
  }

  .rule-table tbody td {
    border-bottom: none;
    padding: 8px 16px;
    position: relative;
    padding-left: 40%;
    text-align: right;
    font-size: 0.875rem;
  }

  .rule-table tbody td::before {
    content: attr(data-label);
    position: absolute;
    left: 16px;
    top: 8px;
    font-weight: 600;
    color: var(--color-text);
    text-align: left;
    white-space: nowrap;
  }

  .rule-table tbody td:first-child {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.9375rem;
  }

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

  .page-guifan .guide-links {
    grid-template-columns: 1fr 1fr;
  }

  /* 帮助页 */
  .start-card {
    flex-direction: column;
    gap: 10px;
  }

  .start-link {
    align-self: flex-start;
  }

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

  .record-clear-zone {
    flex-direction: column;
    align-items: flex-start;
  }

  /* 反馈页 */
  .field-sample-wrap {
    grid-template-columns: 1fr;
  }

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

  /* 页脚 */
  .footer-inner {
    flex-direction: column;
    gap: 28px;
    padding: 32px 16px 20px;
  }

  .footer-links-group {
    gap: 24px;
  }

  .footer-bottom {
    padding: 12px 16px;
  }
}

/* --- 小屏手机（≤480px） --- */
@media (max-width: 480px) {
  .next-step-links {
    grid-template-columns: 1fr;
  }

  .page-guifan .guide-links {
    grid-template-columns: 1fr;
  }

  .data-table tbody td {
    padding-left: 36%;
    font-size: 0.8125rem;
  }

  .process-table tbody td {
    padding-left: 36%;
    font-size: 0.8125rem;
  }

  .rule-table tbody td {
    padding-left: 36%;
    font-size: 0.8125rem;
  }

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

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