/* ==========================================================================
   看麻豆传媒官网 · 整站样式表
   视觉方向：清晰编辑风，白底、深色正文、克制强调色
   强调色：#C8102E  背景：#ffffff  正文：#1a1a1a  浅灰：#f5f5f5
   ========================================================================== */

/* ==========================================================================
   1. Base —— 重置、变量、字体、通用元素
   ========================================================================== */

:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-accent: #C8102E;
  --color-accent-dark: #a00d24;
  --color-gray-bg: #f5f5f5;
  --color-gray-text: #999999;
  --color-border: #e5e5e5;
  --container-width: 1140px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.1);
}

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

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);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-text);
}

.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 —— 全站骨架容器
   ========================================================================== */

.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex-shrink: 0;
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.brand-tagline {
  font-size: 12px;
  color: var(--color-gray-text);
  margin-top: 2px;
}

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

.site-nav .nav-list a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.site-nav .nav-list a:hover {
  background: var(--color-gray-bg);
  color: var(--color-accent);
}

.site-nav .nav-list a.is-current {
  color: var(--color-accent);
  font-weight: 600;
  background: rgba(200, 16, 46, 0.06);
}

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

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

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

.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 64px;
}

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

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

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

.breadcrumb-sep {
  color: #ccc;
}

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

/* 页面标题区 */
.page-header {
  margin-bottom: 40px;
}

.page-title {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
  line-height: 1.25;
}

.page-description {
  font-size: 17px;
  color: #555;
  max-width: 760px;
}

/* 页脚 */
.site-footer {
  background: #fafafa;
  border-top: 1px solid var(--color-border);
  margin-top: 0;
}

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

.footer-brand p {
  font-size: 14px;
  color: #666;
  margin-bottom: 8px;
}

.footer-brand p strong {
  display: block;
  font-size: 18px;
  color: var(--color-text);
  margin-bottom: 8px;
}

.footer-col-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 14px;
}

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

.footer-nav-col ul a {
  font-size: 14px;
  color: #666;
}

.footer-nav-col ul a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--color-gray-text);
}

/* 相关链接条（底部通用） */
.related-links {
  max-width: var(--container-width);
  margin: 40px auto 0;
  padding: 20px 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 14px;
}

.related-links-label {
  color: var(--color-gray-text);
  margin-right: 4px;
}

.related-links-item {
  color: var(--color-accent);
  font-weight: 500;
}

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

/* 按钮 */
.btn-primary,
.btn-secondary,
.entry-button {
  display: inline-block;
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(200, 16, 46, 0.25);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid #ddd;
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(200, 16, 46, 0.03);
}

/* 区块标题 */
.section-heading {
  margin-bottom: 32px;
}

.section-heading h2 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 10px;
  position: relative;
  padding-bottom: 12px;
}

.section-heading h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 36px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.section-heading p,
.section-intro,
.section-desc,
.section-lead {
  font-size: 16px;
  color: #666;
  max-width: 720px;
}

/* 卡片通用 hover */
.channel-card,
.entry-card,
.device-item,
.scene-item,
.problem-item,
.nav-mode,
.related-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.channel-card:hover,
.entry-card:hover,
.device-item:hover,
.scene-item:hover,
.problem-item:hover,
.nav-mode:hover,
.related-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

/* 折叠面板 */
details {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  margin-bottom: 12px;
  overflow: hidden;
}

details summary {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  padding-right: 44px;
  list-style: none;
  transition: background-color 0.2s ease;
}

details summary::-webkit-details-marker {
  display: none;
}

details summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 400;
  color: var(--color-accent);
  transition: transform 0.25s ease;
}

details[open] summary {
  background: rgba(200, 16, 46, 0.03);
  border-bottom: 1px solid var(--color-border);
}

details[open] summary::after {
  content: "−";
}

details p {
  padding: 16px 20px;
  font-size: 15px;
  color: #555;
}

/* ==========================================================================
   4. Pages —— 首页
   ========================================================================== */

.home-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 64px;
}

/* Hero 杂志目录 */
.hero-magazine {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
  padding: 56px 0 64px;
}

.hero-copy {
  max-width: 560px;
}

.issue-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  background: rgba(200, 16, 46, 0.06);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

.hero-copy h1 {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero-description {
  font-size: 17px;
  color: #555;
  margin-bottom: 28px;
  max-width: 480px;
}

.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-cover {
  position: relative;
}

.hero-cover img {
  width: 100%;
  height: 380px;
  border-radius: var(--radius-lg);
  object-fit: cover;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.hero-nav-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 20px;
}

.hero-nav-list li a {
  display: block;
  padding: 10px 14px;
  background: var(--color-gray-bg);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-text);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.hero-nav-list li a:hover {
  background: var(--color-accent);
  color: #fff;
}

/* 频道分类 */
.feature-gallery {
  padding: 56px 0;
  border-top: 1px solid var(--color-border);
}

.channel-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.channel-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding-bottom: 20px;
  overflow: hidden;
}

.channel-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.channel-card h3 {
  font-size: 18px;
  padding: 16px 18px 6px;
}

.channel-card p {
  font-size: 14px;
  color: #666;
  padding: 0 18px;
  margin-bottom: 14px;
  line-height: 1.7;
}

.channel-card a {
  display: inline-block;
  margin: 0 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

/* 使用场景双栏 */
.scenarios {
  padding: 56px 0;
  border-top: 1px solid var(--color-border);
}

.panel-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.device-panel,
.scene-panel {
  background: var(--color-gray-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.device-panel h3,
.scene-panel h3 {
  font-size: 20px;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.device-panel ul li,
.scene-panel ul li {
  padding: 12px 0;
  border-bottom: 1px solid #e0e0e0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.device-panel ul li:last-child,
.scene-panel ul li:last-child {
  border-bottom: none;
}

.device-panel ul strong,
.scene-panel ul strong {
  font-size: 16px;
  color: var(--color-text);
}

.device-panel ul span,
.scene-panel ul span {
  font-size: 14px;
  color: #666;
  line-height: 1.7;
}

.device-panel img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-top: 20px;
}

/* 内容日历 */
.content-calendar {
  padding: 56px 0;
  border-top: 1px solid var(--color-border);
}

.calendar-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.week-calendar h3,
.activity-list h3 {
  font-size: 18px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}

.weekdays li {
  background: var(--color-gray-bg);
  border-radius: var(--radius-sm);
  padding: 12px 6px;
  text-align: center;
  font-size: 13px;
  color: #555;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.weekdays li span:first-child {
  font-weight: 700;
  color: var(--color-text);
}

.activity-list ul li {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.activity-list ul a {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  display: block;
  margin-bottom: 4px;
}

.activity-list ul a:hover {
  color: var(--color-accent);
}

.activity-list ul p {
  font-size: 14px;
  color: #666;
}

/* 双入口 */
.entry-duo {
  padding: 56px 0;
  border-top: 1px solid var(--color-border);
}

.entry-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.entry-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.entry-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.entry-card p {
  font-size: 15px;
  color: #666;
  margin-bottom: 20px;
  line-height: 1.7;
}

.entry-card a {
  font-weight: 600;
  font-size: 15px;
}

/* 支持与 FAQ 摘选 */
.support-faq {
  padding: 56px 0;
  border-top: 1px solid var(--color-border);
}

.support-faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.support-card {
  background: var(--color-gray-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.support-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.support-card p {
  font-size: 15px;
  color: #555;
  margin-bottom: 16px;
}

.support-card a {
  font-weight: 600;
  font-size: 15px;
}

.faq-preview h3 {
  font-size: 20px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.faq-preview details {
  margin-bottom: 10px;
}

.faq-preview details summary {
  padding: 14px 40px 14px 16px;
  font-size: 15px;
}

.faq-preview details p {
  padding: 12px 16px;
  font-size: 14px;
}

.faq-preview > a {
  display: inline-block;
  margin-top: 8px;
  font-weight: 600;
  font-size: 15px;
}

.boundary-tip {
  margin-top: 32px;
  background: var(--color-gray-bg);
  border-left: 4px solid var(--color-accent);
  padding: 16px 20px;
  font-size: 14px;
  color: #555;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ==========================================================================
   5. Pages —— 内页通用 + 功能概览
   ========================================================================== */

/* 功能概览：频道列表 */
.channel-list,
.nav-intro {
  margin-bottom: 48px;
}

.channel-list h2,
.nav-intro h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 10px;
  position: relative;
  padding-bottom: 10px;
}

.channel-list h2::after,
.nav-intro h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.channel-list .section-desc,
.nav-intro .section-desc {
  margin-bottom: 28px;
}

.channel-group {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.channel-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  align-items: center;
}

.channel-media img {
  width: 240px;
  height: 150px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.channel-info h3 {
  font-size: 19px;
  margin-bottom: 8px;
}

.channel-info p {
  font-size: 15px;
  color: #555;
  margin-bottom: 12px;
  line-height: 1.7;
}

.channel-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.channel-tags em {
  font-style: normal;
  font-size: 13px;
  color: var(--color-accent);
  background: rgba(200, 16, 46, 0.06);
  padding: 3px 12px;
  border-radius: 16px;
}

/* 导航方式说明 */
.nav-modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.nav-mode {
  background: var(--color-gray-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.nav-mode h3 {
  font-size: 19px;
  margin-bottom: 10px;
}

.nav-mode p {
  font-size: 15px;
  color: #555;
  margin-bottom: 16px;
  line-height: 1.7;
}

.nav-mode a {
  font-weight: 600;
  font-size: 15px;
}

/* 相关入口卡片 */
.related-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.related-card {
  display: block;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.related-card-title {
  display: block;
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.related-card-text {
  display: block;
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

.related-card:hover .related-card-title {
  color: var(--color-accent);
}

/* ==========================================================================
   6. Pages —— 使用场景
   ========================================================================== */

.device-list,
.scene-list {
  margin-bottom: 48px;
}

.device-list h2,
.scene-list h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 8px;
  position: relative;
  padding-bottom: 10px;
}

.device-list h2::after,
.scene-list h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.device-list .section-intro,
.scene-list .section-intro {
  margin-bottom: 24px;
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.device-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.device-icon {
  width: 48px;
  height: 48px;
  background: rgba(200, 16, 46, 0.08);
  border-radius: 12px;
  margin-bottom: 16px;
  position: relative;
}

.device-icon::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 20px;
  height: 26px;
  border: 2px solid var(--color-accent);
  border-radius: 4px;
}

.device-item h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.device-item p {
  font-size: 14px;
  color: #666;
  line-height: 1.7;
}

.media-figure {
  margin-top: 16px;
}

.media-figure img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scene-item {
  background: var(--color-gray-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.scene-item h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--color-accent);
}

.scene-item p {
  font-size: 14px;
  color: #555;
  line-height: 1.7;
}

/* 指南入口 */
.guide-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.guide-card-text h3 {
  font-size: 20px;
  margin-bottom: 8px;
}

.guide-card-text p {
  font-size: 15px;
  color: #666;
}

.card-link {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  white-space: nowrap;
  transition: background-color 0.2s ease;
}

.card-link:hover {
  background: var(--color-accent-dark);
  color: #fff;
}

/* ==========================================================================
   7. Pages —— 版本说明
   ========================================================================== */

.app-info,
.entry-map {
  margin-bottom: 48px;
}

.app-info h2,
.entry-map h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 10px;
  position: relative;
  padding-bottom: 10px;
}

.app-info h2::after,
.entry-map h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.app-info-content {
  background: var(--color-gray-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.app-info-content p {
  font-size: 15px;
  color: #555;
  line-height: 1.8;
  margin-bottom: 12px;
}

.app-info-content p:last-child {
  margin-bottom: 0;
}

.entry-map .section-intro {
  margin-bottom: 20px;
}

.entry-map-table-wrap {
  overflow-x: auto;
  margin-bottom: 24px;
}

.entry-map-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.entry-map-table th {
  background: var(--color-gray-bg);
  padding: 14px 16px;
  text-align: left;
  font-weight: 700;
  border-bottom: 2px solid var(--color-border);
}

.entry-map-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  color: #444;
  line-height: 1.6;
}

.entry-map-table tr:last-child td {
  border-bottom: none;
}

.entry-map-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.entry-map-figure figcaption {
  font-size: 13px;
  color: var(--color-gray-text);
  margin-top: 8px;
  text-align: center;
}

/* FAQ 入口卡 */
.faq-link-card {
  background: var(--color-gray-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 48px;
}

.faq-link-content h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.faq-link-content p {
  font-size: 15px;
  color: #555;
  margin-bottom: 12px;
}

.text-link {
  font-weight: 600;
  font-size: 15px;
}

/* ==========================================================================
   8. Pages —— 操作指南
   ========================================================================== */

.guide-steps,
.verify-section {
  margin-bottom: 48px;
}

.guide-steps h2,
.verify-section h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 10px;
  position: relative;
  padding-bottom: 10px;
}

.guide-steps h2::after,
.verify-section h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.guide-steps .section-lead {
  margin-bottom: 28px;
}

.steps-wrapper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.step-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
}

.step-number {
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.step-content h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.step-content p {
  font-size: 14px;
  color: #666;
  line-height: 1.7;
}

.guide-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.guide-figure figcaption {
  font-size: 13px;
  color: var(--color-gray-text);
  margin-top: 8px;
  text-align: center;
}

/* 核验方法 */
.verify-card {
  background: var(--color-gray-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.verify-list {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

.verify-list li {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 20px;
}

.verify-list h3 {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--color-accent);
}

.verify-list p {
  font-size: 14px;
  color: #555;
  line-height: 1.7;
}

/* 相关卡片 */
.related-card h3 {
  font-size: 17px;
  margin-bottom: 6px;
  color: var(--color-text);
}

.related-card p {
  font-size: 14px;
  color: #666;
  margin-bottom: 12px;
  line-height: 1.6;
}

.related-card a {
  font-weight: 600;
  font-size: 14px;
}

/* 支持入口 */
.support-entry {
  background: var(--color-gray-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
}

.support-entry h2 {
  font-size: 20px;
  margin-bottom: 6px;
}

.support-entry p {
  font-size: 15px;
  color: #555;
}

.entry-button {
  background: var(--color-accent);
  color: #fff;
  white-space: nowrap;
}

.entry-button:hover {
  background: var(--color-accent-dark);
  color: #fff;
}

/* ==========================================================================
   9. Pages —— 技术支持
   ========================================================================== */

.problem-list,
.feedback-path {
  margin-bottom: 48px;
}

.problem-list h2,
.feedback-path h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 10px;
}

.problem-list h2::after,
.feedback-path h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.problem-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.problem-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  align-items: center;
}

.problem-media img {
  width: 220px;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.problem-content h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--color-accent);
}

.problem-content p {
  font-size: 15px;
  color: #555;
  line-height: 1.7;
  margin-bottom: 6px;
}

.feedback-content {
  background: var(--color-gray-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.feedback-content p {
  font-size: 15px;
  color: #555;
  line-height: 1.8;
  margin-bottom: 12px;
}

.feedback-list {
  margin: 16px 0;
  padding-left: 4px;
}

.feedback-list li {
  font-size: 15px;
  color: #555;
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
  line-height: 1.7;
}

.feedback-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* 相关入口 */
.related-links .related-card {
  display: block;
}

/* ==========================================================================
   10. Pages —— 常见问题
   ========================================================================== */

.faq-list,
.boundary-note {
  margin-bottom: 48px;
}

.faq-list h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 8px;
  position: relative;
  padding-bottom: 10px;
}

.faq-list h2::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.faq-list > p {
  font-size: 16px;
  color: #666;
  margin-bottom: 24px;
}

.faq-item {
  margin-bottom: 12px;
}

.faq-figure {
  margin-top: 28px;
}

.faq-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.faq-figure figcaption {
  font-size: 13px;
  color: var(--color-gray-text);
  margin-top: 8px;
  text-align: center;
}

.boundary-note {
  background: var(--color-gray-bg);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 24px 28px;
}

.boundary-note h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.boundary-note p {
  font-size: 15px;
  color: #555;
  line-height: 1.8;
}

.support-link .support-card {
  background: var(--color-gray-bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}

.support-link .support-card p {
  font-size: 15px;
  color: #555;
  margin-bottom: 0;
}

.support-link .card-link {
  white-space: nowrap;
}

.support-link .card-link span {
  display: inline-block;
}

/* ==========================================================================
   11. Pages —— 404
   ========================================================================== */

.error-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 80px 24px;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-section {
  text-align: center;
  max-width: 600px;
}

.error-code {
  font-size: 80px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-section h1 {
  font-size: 28px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 16px;
  color: #666;
  margin-bottom: 28px;
}

.error-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.error-help {
  font-size: 14px;
  color: var(--color-gray-text);
}

.error-help a {
  color: var(--color-accent);
  font-weight: 500;
}

/* ==========================================================================
   12. Responsive —— 响应式
   ========================================================================== */

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

  .channel-item {
    grid-template-columns: 180px 1fr;
  }

  .channel-media img {
    width: 180px;
    height: 130px;
  }

  .problem-item {
    grid-template-columns: 180px 1fr;
  }

  .problem-media img {
    width: 180px;
    height: 120px;
  }

  .hero-magazine {
    gap: 36px;
  }

  .hero-copy h1 {
    font-size: 34px;
  }
}

/* 手机 */
@media (max-width: 768px) {
  .header-inner {
    height: 64px;
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    z-index: 99;
  }

  .site-nav .nav-list {
    flex-direction: column;
    align-items: stretch;
    padding: 12px 16px;
    gap: 0;
    display: none;
  }

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

  .site-nav .nav-list li {
    border-bottom: 1px solid var(--color-border);
  }

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

  .site-nav .nav-list a {
    padding: 14px 12px;
    font-size: 16px;
  }

  /* 首页 */
  .home-main {
    padding: 0 16px 48px;
  }

  .hero-magazine {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 36px 0 48px;
  }

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

  .hero-cover img {
    height: 240px;
  }

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

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

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

  .calendar-layout {
    grid-template-columns: 1fr;
  }

  .weekdays {
    grid-template-columns: repeat(4, 1fr);
  }

  .entry-cards {
    grid-template-columns: 1fr;
  }

  .support-faq-grid {
    grid-template-columns: 1fr;
  }

  .section-heading h2 {
    font-size: 24px;
  }

  /* 内页 */
  .inner-main {
    padding: 24px 16px 48px;
  }

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

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

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

  /* 功能概览 */
  .channel-item {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .channel-media img {
    width: 100%;
    height: 180px;
  }

  .nav-modes {
    grid-template-columns: 1fr;
  }

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

  /* 使用场景 */
  .device-grid,
  .scene-grid {
    grid-template-columns: 1fr;
  }

  .guide-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  /* 版本说明 */
  .entry-map-table {
    font-size: 14px;
  }

  .entry-map-table th,
  .entry-map-table td {
    padding: 10px 12px;
  }

  /* 操作指南 */
  .steps-wrapper {
    grid-template-columns: 1fr;
  }

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

  .guide-figure img {
    height: 180px;
  }

  .support-entry {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  /* 技术支持 */
  .problem-item {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .problem-media img {
    width: 100%;
    height: 160px;
  }

  /* FAQ */
  .faq-figure img {
    height: 180px;
  }

  .support-link .support-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  /* 页脚 */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    padding: 36px 16px 24px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .related-links {
    padding: 16px;
    gap: 8px;
  }

  /* 404 */
  .error-main {
    padding: 48px 16px;
  }

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

/* 小屏手机 */
@media (max-width: 480px) {
  .brand-name {
    font-size: 17px;
  }

  .brand-tagline {
    font-size: 11px;
  }

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

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

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

  .btn-primary,
  .btn-secondary {
    text-align: center;
  }

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

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

  .footer-brand {
    grid-column: auto;
  }

  .entry-map-table-wrap {
    margin: 0 -8px;
  }
}