/* ==========================================================================
   天美影视 · 全站样式表
   公益组织风：浅灰背景、深蓝主色、橙色行动按钮
   ========================================================================== */

/* ==========================================================================
   Base —— 基础变量、重置、字体、通用元素
   ========================================================================== */

:root {
  --color-bg: #f5f7fa;
  --color-text: #22272e;
  --color-text-secondary: #5e6a76;
  --color-primary: #1e3a5f;
  --color-accent: #2a6f97;
  --color-action: #e67e22;
  --color-action-hover: #cf6d14;
  --color-footer-bg: #151c26;
  --color-footer-text: #c8d1dc;
  --color-card-bg: #ffffff;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --container-max: 1200px;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Microsoft YaHei', sans-serif;
  --transition-speed: 0.2s;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--color-action);
  text-decoration: underline;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

h4 {
  font-size: 16px;
}

p {
  margin-bottom: 1em;
}

.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 —— 全站布局骨架：页头、主容器、页脚、内页布局
   ========================================================================== */

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

/* ---- 页头 ---- */

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

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

.brand-link {
  display: inline-flex;
  align-items: center;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 20px;
}

.brand-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.brand-name {
  letter-spacing: 0.5px;
}

.site-nav {
  display: flex;
  align-items: center;
}

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

.nav-toggle-icon {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  position: relative;
  transition: background-color var(--transition-speed) ease;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  transition: transform var(--transition-speed) ease;
}

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

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

.nav-toggle[aria-expanded='true'] .nav-toggle-icon {
  background-color: transparent;
}

.nav-toggle[aria-expanded='true'] .nav-toggle-icon::before {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded='true'] .nav-toggle-icon::after {
  transform: translateY(-7px) rotate(-45deg);
}

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

.nav-list li {
  margin: 0;
}

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

.nav-list a:hover {
  background-color: var(--color-bg);
  color: var(--color-primary);
  text-decoration: none;
}

.nav-list a.is-current {
  background-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
}

/* ---- 页脚 ---- */

.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  flex-shrink: 0;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 48px 24px 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}

.footer-brand .footer-logo {
  display: block;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-footer-text);
  max-width: 360px;
}

.footer-col h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: var(--color-footer-text);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 24px;
  text-align: center;
  font-size: 13px;
  color: var(--color-footer-text);
}

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

/* ---- 内页统一骨架 ---- */

.inner-main {
  width: 100%;
}

.page-layout {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px 64px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 40px;
  align-items: start;
}

.layout-shell {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px 64px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 40px;
  align-items: start;
}

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

/* ---- 面包屑 ---- */

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

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

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

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

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

/* ---- 页面标题区 ---- */

.page-header {
  margin-bottom: 36px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  line-height: 1.3;
}

.page-description {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 720px;
  margin: 0;
  line-height: 1.7;
}

/* ---- 右侧目录 ---- */

.aside-toc {
  position: sticky;
  top: 88px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.aside-toc h2,
.toc-inner h2,
.toc-box h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.aside-toc ul li {
  margin-bottom: 4px;
}

.aside-toc ul a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-speed) ease,
    color var(--transition-speed) ease;
}

.aside-toc ul a:hover {
  background-color: var(--color-bg);
  color: var(--color-primary);
  text-decoration: none;
}

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

/* ---- 按钮 ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-speed) ease,
    color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

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

.btn-primary:hover {
  background-color: var(--color-action-hover);
  color: var(--color-white);
  text-decoration: none;
}

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

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  text-decoration: none;
}

/* ---- 视频卡片 ---- */

.video-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-speed) ease,
    transform var(--transition-speed) ease;
}

.video-card:hover {
  box-shadow: 0 4px 16px rgba(30, 58, 95, 0.1);
  transform: translateY(-2px);
}

.video-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.video-card h4,
.video-card-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 8px;
}

.video-card p,
.video-card-body p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
}

/* ==========================================================================
   Pages —— 首页模块
   ========================================================================== */

/* ---- Hero 焦点区 ---- */

.hero-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 56px 24px 48px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-copy .hero-title {
  font-size: 32px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.hero-slogan {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.hero-description {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-media {
  margin: 0;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* ---- 频道选择器 ---- */

.channel-selector {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 16px 24px 32px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
}

.channel-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.channel-tab {
  display: inline-block;
  padding: 10px 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  transition: background-color var(--transition-speed) ease,
    color var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.channel-tab:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
  text-decoration: none;
}

/* ---- 编辑推荐 ---- */

.editor-picks {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px;
}

.picks-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
}

.pick-featured {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.pick-featured img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.pick-featured h3 {
  font-size: 18px;
  font-weight: 600;
  padding: 20px 20px 8px;
  color: var(--color-primary);
}

.pick-featured p {
  padding: 0 20px 20px;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

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

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

.pick-item img {
  width: 120px;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.pick-info h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.pick-info p {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* ---- 频道内容区块 ---- */

.channel-blocks {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px;
}

.channel-block {
  margin-bottom: 40px;
}

.channel-head {
  margin-bottom: 20px;
}

.channel-head h3,
.channel-head h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.channel-head p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

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

.channel-cards .video-card {
  padding-bottom: 16px;
}

.channel-cards .video-card img {
  margin-bottom: 12px;
}

.channel-cards .video-card h4 {
  padding: 0 16px;
}

.channel-cards .video-card p {
  padding: 0 16px;
}

/* ---- 最新收录摘要 ---- */

.latest-updates {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px;
}

.update-timeline {
  border-left: 2px solid var(--color-border);
  padding-left: 24px;
  margin-bottom: 24px;
}

.timeline-item {
  position: relative;
  margin-bottom: 24px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -31px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-accent);
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.version-tag {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 13px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  margin-right: 12px;
}

.timeline-item time {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.timeline-item p {
  margin: 8px 0 0;
  font-size: 14px;
  color: var(--color-text);
}

.text-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-accent);
}

.text-link:hover {
  color: var(--color-action);
}

/* ---- 主题片单预览 ---- */

.specials-preview {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px;
}

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

.special-card {
  display: block;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-speed) ease,
    transform var(--transition-speed) ease;
}

.special-card:hover {
  box-shadow: 0 4px 16px rgba(30, 58, 95, 0.1);
  transform: translateY(-2px);
  text-decoration: none;
}

.special-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.special-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  padding: 16px 16px 4px;
}

.special-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: 0 16px 16px;
  margin: 0;
}

/* ---- 播放指南摘要 ---- */

.guide-summary {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px;
}

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

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

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

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

/* ---- 常见问题摘要 ---- */

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

.faq-links li {
  margin-bottom: 12px;
}

.faq-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: var(--color-text);
  padding: 12px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-speed) ease,
    color var(--transition-speed) ease;
}

.faq-links a::before {
  content: 'Q';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--color-bg);
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-links a:hover {
  border-color: var(--color-accent);
  color: var(--color-primary);
  text-decoration: none;
}

/* ==========================================================================
   Pages —— 影视分类页（tmys/channels.html）
   ========================================================================== */

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

.layout-main .channel-block {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
}

.layout-main .channel-head {
  margin-bottom: 16px;
}

.layout-main .channel-head h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.layout-main .channel-head p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

.video-card-body {
  padding: 16px;
}

.video-card-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

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

.channel-more {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 24px;
}

.channel-more h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.channel-more p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

.channel-more p a {
  margin-right: 8px;
}

/* ==========================================================================
   Pages —— 专题推荐页（tmys/specials.html）
   ========================================================================== */

.special-block {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 28px;
}

.special-head {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 24px;
  align-items: start;
  margin-bottom: 24px;
}

.special-text h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.special-reason {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.7;
}

.special-cover {
  margin: 0;
}

.special-cover img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.special-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.special-item {
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 16px;
}

.special-item h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.special-item p {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.6;
}

.related-links {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.related-links h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.related-links p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
}

.related-links p a {
  margin-right: 8px;
}

/* ==========================================================================
   Pages —— 收录动态页（tmys/updates.html）
   ========================================================================== */

.updates-hero {
  margin-bottom: 32px;
}

.updates-hero-figure {
  margin: 0;
}

.updates-hero-figure img {
  width: 100%;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

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

.version-timeline {
  margin-bottom: 32px;
}

.section-note {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.timeline-list {
  position: relative;
  padding-left: 0;
}

.timeline-list::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-list .timeline-item {
  position: relative;
  padding-left: 48px;
  margin-bottom: 28px;
}

.timeline-marker {
  position: absolute;
  left: 8px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-color: var(--color-accent);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.version-body {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
}

.version-badge {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 13px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  margin-right: 12px;
}

.version-date {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.version-body p {
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.update-note {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.update-note h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.update-note p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0 0 8px;
  line-height: 1.7;
}

.toc-box {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 20px;
}

.toc-box ul a {
  display: block;
  padding: 6px 8px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.toc-box ul a:hover {
  background-color: var(--color-bg);
  color: var(--color-primary);
  text-decoration: none;
}

.aside-links {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.aside-links h2 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.aside-links ul a {
  display: block;
  padding: 6px 8px;
  font-size: 14px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
}

.aside-links ul a:hover {
  background-color: var(--color-bg);
  color: var(--color-primary);
  text-decoration: none;
}

/* ==========================================================================
   Pages —— 播放指南页（tmys/guide.html）
   ========================================================================== */

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

.guide-section h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.guide-section p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 1em;
}

.guide-figure {
  margin: 24px 0;
}

.guide-figure img {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

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

.guide-links {
  list-style: disc;
  padding-left: 20px;
}

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

.guide-links a {
  font-size: 15px;
}

/* ==========================================================================
   Pages —— 疑问解答页（tmys/faq.html）
   ========================================================================== */

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

.sidebar-right .site-main {
  padding: 0;
}

.faq-content {
  min-width: 0;
}

.faq-group {
  margin-bottom: 36px;
}

.faq-group h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

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

.content-media img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.content-media figcaption {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 8px;
  text-align: center;
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-item summary {
  cursor: pointer;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  list-style: none;
  position: relative;
  padding-right: 40px;
  transition: background-color var(--transition-speed) ease;
}

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

.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--color-accent);
  transition: transform var(--transition-speed) ease;
}

.faq-item[open] summary {
  background-color: var(--color-bg);
}

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

.faq-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.7;
}

.faq-item p a {
  display: inline;
}

/* ==========================================================================
   Pages —— 站点声明页（tmys/about.html）
   ========================================================================== */

.declaration-figure {
  margin: 0 0 32px;
}

.declaration-figure img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

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

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

.declaration-section h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

.declaration-section p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 1em;
}

.scope-list,
.feedback-list {
  margin-bottom: 16px;
}

.scope-list li,
.feedback-list li {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
  margin-bottom: 8px;
}

.scope-list li::before,
.feedback-list li::before {
  content: '·';
  position: absolute;
  left: 4px;
  color: var(--color-accent);
  font-weight: 700;
}

.feedback-list a {
  font-size: 14px;
}

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

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 24px;
}

.error-section {
  text-align: center;
  max-width: 480px;
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
}

.error-section h1 {
  font-size: 24px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.error-back {
  display: inline-block;
  padding: 10px 24px;
  background-color: var(--color-action);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  min-height: 44px;
  line-height: 44px;
}

.error-back:hover {
  background-color: var(--color-action-hover);
  color: var(--color-white);
  text-decoration: none;
}

/* ==========================================================================
   Responsive —— 响应式
   ========================================================================== */

@media (max-width: 1024px) {
  .page-layout {
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 24px;
  }

  .layout-shell {
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 24px;
  }

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

  .special-head {
    grid-template-columns: 1fr 160px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
    height: 56px;
  }

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

  .nav-list {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 16px 16px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
    z-index: 99;
  }

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

  .nav-list li {
    width: 100%;
  }

  .nav-list a {
    padding: 14px 12px;
    border-radius: var(--radius-sm);
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .nav-list a.is-current {
    background-color: var(--color-bg);
    color: var(--color-primary);
  }

  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 16px;
  }

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

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

  .hero-actions .btn {
    width: 100%;
  }

  .channel-selector,
  .editor-picks,
  .channel-blocks,
  .latest-updates,
  .specials-preview,
  .guide-summary,
  .faq-summary {
    padding-left: 16px;
    padding-right: 16px;
  }

  .channel-tabs {
    gap: 8px;
  }

  .channel-tab {
    padding: 8px 14px;
    font-size: 13px;
  }

  .picks-grid {
    gap: 20px;
  }

  .pick-item {
    flex-direction: column;
  }

  .pick-item img {
    width: 100%;
    aspect-ratio: 16 / 9;
  }

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

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

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

  .page-layout {
    grid-template-columns: 1fr;
    padding: 24px 16px 48px;
    gap: 24px;
  }

  .layout-shell {
    grid-template-columns: 1fr;
    padding: 24px 16px 48px;
    gap: 24px;
  }

  .sidebar-right {
    grid-template-columns: 1fr;
    padding: 24px 16px 48px;
  }

  .sidebar-right .site-main {
    order: 0;
  }

  .sidebar-right .aside-toc {
    order: 1;
    position: static;
  }

  .aside-toc {
    position: static;
  }

  .layout-main {
    order: 0;
  }

  .layout-aside {
    order: 1;
  }

  .main-content {
    order: 0;
  }

  .page-layout .aside-toc {
    order: 1;
  }

  .page-layout .layout-main {
    order: 0;
  }

  .page-layout .layout-aside {
    order: 1;
  }

  .breadcrumb {
    margin-bottom: 16px;
  }

  .page-header {
    margin-bottom: 24px;
  }

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

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

  .special-cover img {
    aspect-ratio: 16 / 7;
  }

  .special-items {
    grid-template-columns: 1fr;
  }

  .special-block {
    padding: 20px;
  }

  .timeline-list::before {
    left: 10px;
  }

  .timeline-marker {
    left: 3px;
  }

  .timeline-list .timeline-item {
    padding-left: 36px;
  }

  .version-body {
    padding: 16px;
  }

  .updates-hero-figure img {
    aspect-ratio: 16 / 9;
  }

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

  .content-media img {
    aspect-ratio: 16 / 9;
  }

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

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

  .footer-brand p {
    max-width: 100%;
  }

  .footer-bottom {
    padding: 16px;
  }

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

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

@media (max-width: 480px) {
  .hero-copy .hero-title {
    font-size: 24px;
  }

  .hero-slogan {
    font-size: 17px;
  }

  .section-title {
    font-size: 20px;
  }

  .channel-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }

  .channel-tab {
    white-space: nowrap;
    flex-shrink: 0;
  }

  .special-items {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    flex-wrap: wrap;
  }

  .version-tag {
    margin-bottom: 4px;
  }

  .faq-item summary {
    font-size: 14px;
    padding: 14px 16px;
    padding-right: 36px;
  }

  .faq-item p {
    padding: 0 16px 14px;
  }
}