/* ============================================================
   西瓜视频 · 全站样式
   技术工作台风格：中性底色、紧凑控件、状态清楚
   ============================================================ */

/* --------------------------------------------
   Base：reset、变量、全局基础
   -------------------------------------------- */
*, *::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, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: #1f2328;
  background-color: #f4f5f7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: #1f3a5f;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #d97706;
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

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

/* --------------------------------------------
   Layout：容器、栅格、通用骨架
   -------------------------------------------- */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid #d0d7de;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: #1f3a5f;
  letter-spacing: 0.5px;
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: #57606a;
  border-radius: 6px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
  color: #1f3a5f;
  background-color: #f4f5f7;
}

.nav-link.is-current {
  color: #1f3a5f;
  font-weight: 600;
  background-color: #eef1f5;
}

.nav-link.is-current::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background-color: #d97706;
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 6px;
}

.nav-toggle:hover {
  background-color: #f4f5f7;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #1f3a5f;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

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

.site-footer {
  background-color: #1f2328;
  color: #c9d1d9;
  margin-top: 48px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}

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

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #8b949e;
  max-width: 320px;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 12px;
}

.footer-link-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-link-list a {
  font-size: 14px;
  color: #8b949e;
  transition: color 0.2s ease;
}

.footer-link-list a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #30363d;
  padding: 16px 24px;
  text-align: center;
}

.footer-copyright {
  font-size: 13px;
  color: #6e7781;
}

/* 内页通用骨架 */
.inner-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px 48px;
  width: 100%;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: #6e7781;
  margin-bottom: 20px;
}

.breadcrumb a {
  color: #57606a;
}

.breadcrumb a:hover {
  color: #d97706;
}

.breadcrumb-sep {
  color: #6e7781;
  font-size: 12px;
}

.breadcrumb-current {
  color: #1f2328;
  font-weight: 500;
}

/* 页面标题区 */
.page-header {
  margin-bottom: 32px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
}

.page-header-text {
  flex: 1;
  min-width: 0;
}

.page-header-media {
  flex-shrink: 0;
  width: 280px;
  margin: 0;
}

.page-header-media img {
  width: 280px;
  height: 160px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #d0d7de;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: #1f2328;
  line-height: 1.35;
  margin-bottom: 12px;
}

.page-description {
  font-size: 15px;
  line-height: 1.75;
  color: #57606a;
  max-width: 720px;
}

.page-desc {
  font-size: 15px;
  line-height: 1.75;
  color: #57606a;
  max-width: 720px;
}

/* 通用区块标题 */
.section-title {
  font-size: 22px;
  font-weight: 700;
  color: #1f2328;
  margin-bottom: 16px;
  line-height: 1.4;
}

.section-intro,
.section-desc {
  font-size: 14px;
  color: #57606a;
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 760px;
}

/* 数据表 */
.table-wrap {
  overflow-x: auto;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  background-color: #ffffff;
}

.data-table {
  width: 100%;
  min-width: 560px;
  font-size: 14px;
}

.data-table thead th {
  background-color: #f4f5f7;
  color: #1f2328;
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid #d0d7de;
  white-space: nowrap;
}

.data-table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid #eef1f5;
  color: #57606a;
  vertical-align: top;
}

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

.data-table tbody tr:hover {
  background-color: #f8f9fa;
}

/* 状态标签 */
.status-tag {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 20px;
  border: 1px solid transparent;
  white-space: nowrap;
}

.status-done {
  color: #1a7f37;
  background-color: #dcfce7;
  border-color: #bbf7d0;
}

.status-doing {
  color: #b45309;
  background-color: #fef3c7;
  border-color: #fde68a;
}

.status-todo {
  color: #6e7781;
  background-color: #f4f5f7;
  border-color: #d0d7de;
}

/* 页脚前相关链接（首页、系列片单、收录说明） */
.related-links {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: #1f2328;
}

.related-links-item {
  font-size: 14px;
  color: #1f3a5f;
  padding: 6px 12px;
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 6px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.related-links-item:hover {
  border-color: #d97706;
  color: #d97706;
}

/* --------------------------------------------
   Components：按钮、FAQ、折叠、前后导航等
   -------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  min-height: 44px;
}

.btn-primary {
  background-color: #1f3a5f;
  color: #ffffff;
  border: 1px solid #1f3a5f;
}

.btn-primary:hover {
  background-color: #2a4a78;
  border-color: #2a4a78;
  color: #ffffff;
}

.btn-secondary {
  background-color: #ffffff;
  color: #1f3a5f;
  border: 1px solid #d0d7de;
}

.btn-secondary:hover {
  border-color: #1f3a5f;
  color: #1f3a5f;
}

/* FAQ 折叠 */
.faq-item {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: #1f2328;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  list-style: none;
}

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

.faq-question::after {
  content: '+';
  font-size: 20px;
  font-weight: 400;
  color: #6e7781;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 20px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: #57606a;
}

/* 前后导航 */
.prevnext {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 32px;
  margin-bottom: 32px;
}

.prevnext-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  color: #1f3a5f;
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 6px;
  transition: border-color 0.2s ease, color 0.2s ease;
  min-height: 44px;
}

.prevnext-link:hover {
  border-color: #d97706;
  color: #d97706;
}

.prevnext-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 40px;
}

.prevnext-nav .prevnext-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.prevnext-direction {
  font-size: 12px;
  color: #6e7781;
}

.prevnext-name {
  font-size: 14px;
  font-weight: 600;
}

/* 图注 */
.figure-caption {
  font-size: 13px;
  color: #6e7781;
  text-align: center;
  margin-top: 8px;
  line-height: 1.5;
}

/* 辅助隐藏 */
.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;
}

/* --------------------------------------------
   Pages：首页
   -------------------------------------------- */
.home-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 48px;
}

/* 首页首屏：时间线 + 主视觉 */
.hero-timeline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  padding: 48px 0 40px;
  border-bottom: 1px solid #d0d7de;
}

.hero-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-text {
  max-width: 520px;
}

.hero-title {
  font-size: 30px;
  font-weight: 700;
  color: #1f2328;
  line-height: 1.35;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  font-weight: 500;
  color: #d97706;
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 15px;
  line-height: 1.75;
  color: #57606a;
  margin-bottom: 24px;
}

.hero-cta-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-figure {
  margin: 0;
  align-self: center;
  width: 100%;
  max-width: 480px;
}

.hero-image {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #d0d7de;
}

/* 时间线面板 */
.timeline-panel {
  grid-column: 1 / -1;
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 24px;
}

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

.timeline-item {
  display: flex;
  gap: 14px;
  position: relative;
}

.timeline-dot {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-top: 6px;
  background-color: #d0d7de;
  border: 2px solid #ffffff;
  box-shadow: 0 0 0 2px #d0d7de;
}

.timeline-dot.is-done {
  background-color: #1a7f37;
  box-shadow: 0 0 0 2px #1a7f37;
}

.timeline-dot.is-doing {
  background-color: #d97706;
  box-shadow: 0 0 0 2px #d97706;
}

.timeline-dot.is-next {
  background-color: #6e7781;
  box-shadow: 0 0 0 2px #6e7781;
}

.timeline-body {
  min-width: 0;
}

.timeline-title {
  font-size: 15px;
  font-weight: 600;
  color: #1f2328;
  margin-bottom: 6px;
}

.timeline-text {
  font-size: 13px;
  color: #57606a;
  line-height: 1.6;
}

/* 定位说明带 */
.pos-intro {
  padding: 48px 0;
  border-bottom: 1px solid #d0d7de;
}

.pos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.pos-card {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 24px;
  transition: border-color 0.2s ease;
}

.pos-card:hover {
  border-color: #1f3a5f;
}

.pos-card-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f3a5f;
  margin-bottom: 10px;
}

.pos-card-text {
  font-size: 14px;
  color: #57606a;
  line-height: 1.7;
}

/* 整理方法区 */
.method-list {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  padding: 48px 0;
  border-bottom: 1px solid #d0d7de;
}

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

.method-steps {
  margin-top: 24px;
  counter-reset: method-step;
}

.method-step {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid #eef1f5;
}

.method-step:last-child {
  border-bottom: none;
}

.step-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #1f3a5f;
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  border-radius: 6px;
}

.step-text {
  min-width: 0;
}

.step-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f2328;
  margin-bottom: 6px;
}

.step-desc {
  font-size: 14px;
  color: #57606a;
  line-height: 1.7;
}

.method-figure {
  margin: 0;
  align-self: center;
}

.method-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #d0d7de;
}

/* 频道目录速览 */
.channel-preview {
  padding: 48px 0;
  border-bottom: 1px solid #d0d7de;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  gap: 16px;
}

.section-head .section-title {
  margin-bottom: 0;
}

.section-more {
  font-size: 14px;
  font-weight: 500;
  color: #1f3a5f;
  white-space: nowrap;
  padding: 8px 12px;
  border: 1px solid #d0d7de;
  border-radius: 6px;
  background-color: #ffffff;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.section-more:hover {
  border-color: #d97706;
  color: #d97706;
}

/* 系列片单案例 */
.series-preview {
  padding: 48px 0;
  border-bottom: 1px solid #d0d7de;
}

.case-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}

.case-card {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.2s ease;
}

.case-card:hover {
  border-color: #1f3a5f;
}

.case-title {
  font-size: 17px;
  font-weight: 600;
  color: #1f3a5f;
}

.case-context,
.case-scope {
  font-size: 14px;
  color: #57606a;
  line-height: 1.7;
}

.case-context strong,
.case-scope strong {
  color: #1f2328;
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

.case-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: #1f3a5f;
  margin-top: auto;
  padding-top: 8px;
}

.case-link:hover {
  color: #d97706;
}

/* 使用路径四步 */
.guide-path {
  padding: 48px 0;
  border-bottom: 1px solid #d0d7de;
}

.path-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 24px;
  counter-reset: path-step;
}

.path-step {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 24px;
  position: relative;
  transition: border-color 0.2s ease;
}

.path-step:hover {
  border-color: #d97706;
}

.path-num {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: #d97706;
  margin-bottom: 10px;
}

.path-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f2328;
  margin-bottom: 8px;
}

.path-desc {
  font-size: 14px;
  color: #57606a;
  line-height: 1.7;
  margin-bottom: 12px;
}

.path-link {
  font-size: 13px;
  font-weight: 500;
  color: #1f3a5f;
}

.path-link:hover {
  color: #d97706;
}

/* 首页 FAQ */
.faq {
  padding: 48px 0;
}

.faq .section-title {
  margin-bottom: 24px;
}

/* --------------------------------------------
   Pages：频道目录（左主右次）
   -------------------------------------------- */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
  align-items: start;
}

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

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

.group-list {
  margin-bottom: 32px;
}

.channel-group {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 20px;
}

.group-title {
  font-size: 18px;
  font-weight: 600;
  color: #1f2328;
  margin-bottom: 4px;
}

.group-list .section-intro {
  margin-bottom: 16px;
}

/* 右侧字段说明 */
.field-notes {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 20px;
}

.field-notes .section-title {
  font-size: 18px;
  margin-bottom: 16px;
}

.field-desc-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.field-item {
  padding-bottom: 12px;
  border-bottom: 1px solid #eef1f5;
}

.field-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.field-item dt {
  font-size: 14px;
  font-weight: 600;
  color: #1f2328;
  margin-bottom: 4px;
}

.field-item dd {
  font-size: 13px;
  color: #57606a;
  line-height: 1.6;
}

/* 使用限制提示 */
.usage-limit {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 24px;
}

.usage-limit .section-title {
  font-size: 18px;
  margin-bottom: 12px;
}

.usage-limit p {
  font-size: 13px;
  color: #57606a;
  line-height: 1.7;
}

/* 页内相关链接 */
.page-related-links {
  margin-top: 32px;
}

.related-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.related-link-list a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 14px;
  color: #1f3a5f;
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 6px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.related-link-list a:hover {
  border-color: #d97706;
  color: #d97706;
}

/* --------------------------------------------
   Pages：系列片单（左主右次）
   -------------------------------------------- */
.main-content {
  min-width: 0;
}

.series-index {
  margin-bottom: 32px;
}

.index-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.index-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
}

.index-item a {
  font-size: 15px;
  font-weight: 500;
  color: #1f3a5f;
  flex: 1;
}

.index-item a:hover {
  color: #d97706;
}

.index-tag {
  font-size: 12px;
  color: #6e7781;
  background-color: #f4f5f7;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid #d0d7de;
  white-space: nowrap;
}

/* 片单卡片 */
.series-card {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  margin-bottom: 32px;
  overflow: hidden;
}

.series-card-head {
  padding: 24px 24px 0;
}

.series-card-text .section-title {
  margin-bottom: 8px;
}

.series-label {
  font-size: 13px;
  color: #d97706;
  font-weight: 500;
  margin-bottom: 16px;
}

.series-card-body {
  padding: 0 24px 24px;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
}

.series-figure {
  margin: 0;
}

.series-figure img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #d0d7de;
}

.series-figure figcaption {
  font-size: 13px;
  color: #6e7781;
  margin-top: 8px;
  line-height: 1.5;
}

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

.sub-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f2328;
  margin: 16px 0 8px;
}

.sub-title:first-child {
  margin-top: 0;
}

.text-block {
  font-size: 14px;
  color: #57606a;
  line-height: 1.75;
  margin-bottom: 12px;
}

.content-list {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
}

.content-list li {
  font-size: 14px;
  color: #57606a;
  line-height: 1.7;
  padding: 4px 0 4px 16px;
  position: relative;
}

.content-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #d97706;
}

/* 侧栏 */
.side-column {
  min-width: 0;
}

.side-card {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 20px;
}

.side-title {
  font-size: 17px;
  font-weight: 600;
  color: #1f2328;
  margin-bottom: 12px;
}

.side-text {
  font-size: 14px;
  color: #57606a;
  line-height: 1.7;
  margin-bottom: 12px;
}

.side-text:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------
   Pages：整理手记（单栏）
   -------------------------------------------- */
.journal-timeline {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 32px;
}

.timeline-stage {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid #eef1f5;
}

.timeline-stage:last-child {
  border-bottom: none;
}

.stage-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: relative;
}

.stage-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: #1f3a5f;
  border: 3px solid #ffffff;
  box-shadow: 0 0 0 2px #1f3a5f;
}

.timeline-stage:nth-child(2) .stage-dot {
  background-color: #d97706;
  box-shadow: 0 0 0 2px #d97706;
}

.timeline-stage:nth-child(3) .stage-dot {
  background-color: #6e7781;
  box-shadow: 0 0 0 2px #6e7781;
}

.stage-label {
  font-size: 12px;
  color: #6e7781;
  white-space: nowrap;
  text-align: center;
}

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

.stage-title {
  font-size: 18px;
  font-weight: 600;
  color: #1f2328;
  margin-bottom: 8px;
}

.stage-text {
  font-size: 14px;
  color: #57606a;
  line-height: 1.7;
  margin-bottom: 8px;
}

.stage-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: #1f3a5f;
  margin-top: 8px;
}

.stage-link:hover {
  color: #d97706;
}

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

.timeline-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #d0d7de;
}

/* 下一步规划 */
.next-plan {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 32px;
}

.plan-content {
  max-width: 760px;
}

.plan-text {
  font-size: 15px;
  color: #57606a;
  line-height: 1.75;
  margin-bottom: 12px;
}

.plan-text:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------
   Pages：使用指引（单栏）
   -------------------------------------------- */
.step-list {
  margin-bottom: 32px;
}

.step-item {
  display: flex;
  gap: 20px;
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 16px;
}

.step-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #1f3a5f;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  border-radius: 8px;
}

.step-content {
  min-width: 0;
  flex: 1;
}

.step-content .step-title {
  font-size: 17px;
  font-weight: 600;
  color: #1f2328;
  margin-bottom: 8px;
}

.step-content .step-desc {
  font-size: 14px;
  color: #57606a;
  line-height: 1.75;
  margin-bottom: 8px;
}

.step-boundary {
  font-size: 13px;
  color: #b45309;
  background-color: #fef3c7;
  border: 1px solid #fde68a;
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 8px;
  line-height: 1.6;
}

.step-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: #1f3a5f;
  margin-top: 4px;
}

.step-link:hover {
  color: #d97706;
}

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

.guide-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #d0d7de;
}

/* 入口核验说明 */
.verify-note {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 32px;
}

.verify-content {
  max-width: 760px;
}

.verify-content p {
  font-size: 15px;
  color: #57606a;
  line-height: 1.75;
  margin-bottom: 16px;
}

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

.verify-list li {
  font-size: 14px;
  color: #57606a;
  line-height: 1.7;
  padding: 6px 0 6px 20px;
  position: relative;
}

.verify-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: #1a7f37;
  font-weight: 700;
}

/* 使用指引 FAQ */
.faq-section {
  margin-bottom: 32px;
}

.faq-section .section-title {
  margin-bottom: 20px;
}

/* --------------------------------------------
   Pages：收录说明（单栏数据集）
   -------------------------------------------- */
.field-table {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 32px;
}

.field-table .data-table {
  min-width: 480px;
}

/* 时间范围与更新方式 */
.time-range {
  margin-bottom: 32px;
}

.two-col-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.time-block,
.update-block {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 24px;
}

.block-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f2328;
  margin-bottom: 12px;
}

.time-block p,
.update-block p {
  font-size: 14px;
  color: #57606a;
  line-height: 1.7;
  margin-bottom: 8px;
}

.time-block p:last-child,
.update-block p:last-child {
  margin-bottom: 0;
}

/* 使用限制 */
.usage-limit {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 32px;
}

.limit-with-image {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  align-items: start;
}

.limit-list {
  min-width: 0;
}

.limit-list ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.limit-list li {
  font-size: 14px;
  color: #57606a;
  line-height: 1.6;
  padding: 8px 12px;
  background-color: #f4f5f7;
  border-radius: 6px;
}

.limit-figure {
  margin: 0;
}

.limit-figure img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid #d0d7de;
}

/* 相关栏目 */
.related-links {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 32px;
  margin-bottom: 32px;
}

.related-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.related-list a {
  display: block;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  color: #1f3a5f;
  background-color: #f4f5f7;
  border: 1px solid #d0d7de;
  border-radius: 6px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.related-list a:hover {
  border-color: #d97706;
  color: #d97706;
}

/* --------------------------------------------
   Pages：404
   -------------------------------------------- */
.error-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.error-panel {
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 8px;
  padding: 48px;
  text-align: center;
  max-width: 560px;
  width: 100%;
}

.error-code {
  font-size: 48px;
  font-weight: 700;
  color: #d97706;
  line-height: 1.2;
  margin-bottom: 16px;
}

.error-title {
  font-size: 24px;
  font-weight: 700;
  color: #1f2328;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: #57606a;
  line-height: 1.7;
  margin-bottom: 24px;
}

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

.error-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  color: #1f3a5f;
  background-color: #ffffff;
  border: 1px solid #d0d7de;
  border-radius: 6px;
  min-height: 44px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.error-link:hover {
  border-color: #d97706;
  color: #d97706;
}

.error-link:first-child {
  background-color: #1f3a5f;
  color: #ffffff;
  border-color: #1f3a5f;
}

.error-link:first-child:hover {
  background-color: #2a4a78;
  border-color: #2a4a78;
  color: #ffffff;
}

/* --------------------------------------------
   Responsive：响应式断点
   -------------------------------------------- */
@media (max-width: 1024px) {
  .hero-timeline {
    gap: 24px;
  }

  .method-list {
    grid-template-columns: 1fr 280px;
    gap: 24px;
  }

  .series-card-body {
    grid-template-columns: 260px 1fr;
    gap: 16px;
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 24px;
  }

  .limit-with-image {
    grid-template-columns: 1fr 220px;
  }
}

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

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background-color: #ffffff;
    border-bottom: 1px solid #d0d7de;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    z-index: 99;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px;
  }

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

  .nav-item {
    width: 100%;
  }

  .nav-link {
    padding: 12px 16px;
    font-size: 15px;
    border-radius: 6px;
  }

  .nav-link.is-current::after {
    display: none;
  }

  .nav-link.is-current {
    background-color: #eef1f5;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

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

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

  .page-header {
    flex-direction: column;
    gap: 16px;
  }

  .page-header-media {
    width: 100%;
    max-width: 100%;
  }

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

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

  .hero-timeline {
    grid-template-columns: 1fr;
    padding: 32px 0 24px;
    gap: 24px;
  }

  .hero-text {
    max-width: 100%;
  }

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

  .hero-figure {
    max-width: 100%;
  }

  .hero-image {
    height: 200px;
  }

  .timeline-list {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .method-list {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .method-figure {
    order: 2;
  }

  .method-image {
    height: 200px;
  }

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

  .path-steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .layout-aside {
    order: 2;
  }

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

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

  .side-column {
    order: 2;
  }

  .timeline-stage {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .stage-marker {
    flex-direction: row;
    justify-content: flex-start;
  }

  .step-item {
    flex-direction: column;
    gap: 12px;
  }

  .two-col-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .limit-with-image {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

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

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 16px 20px;
  }

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

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

  .related-links {
    padding: 16px;
  }

  .prevnext {
    flex-direction: column;
    gap: 12px;
  }

  .prevnext-link {
    width: 100%;
    justify-content: center;
  }

  .prevnext-nav {
    flex-direction: column;
    gap: 12px;
  }

  .prevnext-nav .prevnext-link {
    width: 100%;
    align-items: center;
    text-align: center;
  }

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

  .error-code {
    font-size: 36px;
  }
}

@media (max-width: 480px) {
  .hero-cta-group {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .section-more {
    width: 100%;
    text-align: center;
  }

  .field-table,
  .usage-limit,
  .journal-timeline,
  .next-plan,
  .verify-note,
  .related-links {
    padding: 20px;
  }

  .series-card-head,
  .series-card-body {
    padding-left: 16px;
    padding-right: 16px;
  }

  .series-card-head {
    padding-top: 16px;
  }

  .series-card-body {
    padding-bottom: 16px;
  }

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

  .error-actions {
    flex-direction: column;
  }

  .error-link {
    width: 100%;
    justify-content: center;
  }
}