/* ============================================================
   reunion动漫 · 全站样式表
   产品手册风：功能图解、步骤编号、参数说明、色彩克制
   ============================================================ */

/* ============================================================
   Base —— 重置、变量、字体、基础元素
   ============================================================ */
:root {
  --color-bg: #F5F6F8;
  --color-ink: #1A1D24;
  --color-line: #D8DCE3;
  --color-accent: #1F5EFF;
  --color-accent-soft: rgba(31, 94, 255, 0.08);
  --color-amber: #F0A832;
  --color-white: #FFFFFF;
  --color-muted: #5A6270;
  --color-ink-soft: #3A4150;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;
  --container-width: 1200px;
  --header-height: 72px;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-weight-heading: 600;
  --font-weight-body: 400;
  --line-height-body: 1.75;
  --transition-base: 200ms ease;
}

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

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

body {
  font-family: var(--font-family);
  font-weight: var(--font-weight-body);
  line-height: var(--line-height-body);
  color: var(--color-ink);
  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-base);
}

a:hover {
  color: #1748cc;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-weight: var(--font-weight-heading);
  line-height: 1.3;
  letter-spacing: 0.01em;
}

p {
  margin-bottom: 0;
}

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

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

/* 键盘焦点可见 */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* 跳转正文链接 */
.skip-link {
  position: absolute;
  top: -48px;
  left: 16px;
  z-index: 1000;
  background: var(--color-ink);
  color: var(--color-white);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: 12px;
  color: var(--color-white);
}

/* 视觉隐藏但可被读屏器识别 */
.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;
}

/* ============================================================
   Layout —— 全站骨架：页头、主容器、页脚
   ============================================================ */

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

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

.brand {
  font-size: 22px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  white-space: nowrap;
}

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

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

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

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

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

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

/* 汉堡按钮（桌面端隐藏） */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 5px;
  border-radius: var(--radius-sm);
}

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

/* 主内容容器 */
.site-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* 首页主容器 */
.home-main {
  padding-top: 0;
  padding-bottom: 72px;
}

/* 内页主容器 */
.inner-main {
  padding-top: 32px;
  padding-bottom: 72px;
}

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

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-brand {
  font-size: 15px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
}

.footer-nav {
  display: flex;
  gap: 16px;
}

.footer-nav a {
  font-size: 14px;
  color: var(--color-muted);
}

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

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

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

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

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

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

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

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

/* 内页标题区 */
.page-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-line);
}

.page-title {
  font-size: 32px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 8px;
}

.page-description {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 720px;
}

/* 区块标题 */
.section-title {
  font-size: 22px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 16px;
}

/* 按钮 */
.btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: var(--font-weight-heading);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

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

.btn-primary:hover {
  background-color: #1748cc;
  color: var(--color-white);
}

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

.btn-secondary:hover {
  background-color: var(--color-accent-soft);
  color: var(--color-accent);
}

/* FAQ 折叠项 */
.faq-item {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  margin-bottom: 12px;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
}

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

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

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

.faq-item p {
  padding: 0 20px 16px;
  font-size: 15px;
  color: var(--color-ink-soft);
}

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

/* 双通道首屏 */
.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: 56px 0 48px;
  align-items: center;
}

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

.hero-kicker {
  font-size: 14px;
  font-weight: var(--font-weight-heading);
  color: var(--color-accent);
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.hero-left h1 {
  font-size: 38px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  line-height: 1.25;
  margin-bottom: 16px;
}

.hero-intro {
  font-size: 16px;
  color: var(--color-muted);
  margin-bottom: 24px;
  max-width: 460px;
}

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

.hero-right {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
}

.hero-figure img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.hero-quick-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.hero-quick-links a {
  padding: 8px 16px;
  font-size: 14px;
  color: var(--color-accent);
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-base), background-color var(--transition-base);
}

.hero-quick-links a:hover {
  border-color: var(--color-accent);
  background-color: var(--color-accent-soft);
}

/* 定位说明带 */
.positioning-strip {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 56px;
}

.positioning-strip p {
  font-size: 15px;
  color: var(--color-ink-soft);
  line-height: var(--line-height-body);
}

/* 服务能力总览 */
.services-overview {
  margin-bottom: 56px;
}

.section-heading {
  margin-bottom: 20px;
}

.section-heading h2 {
  font-size: 24px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
}

/* 分段控件 */
.segmented-control {
  display: flex;
  gap: 4px;
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 4px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.seg-btn {
  padding: 10px 20px;
  font-size: 14px;
  font-weight: var(--font-weight-heading);
  color: var(--color-muted);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.seg-btn:hover {
  color: var(--color-accent);
}

.seg-btn.is-active {
  background-color: var(--color-accent);
  color: var(--color-white);
}

/* 服务条目表 */
.service-table-wrap {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 12px;
}

.service-table {
  width: 100%;
}

.service-table thead th {
  background-color: #F0F2F5;
  padding: 14px 20px;
  font-size: 14px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  text-align: left;
  border-bottom: 1px solid var(--color-line);
}

.service-table tbody td {
  padding: 16px 20px;
  font-size: 14px;
  color: var(--color-ink-soft);
  border-bottom: 1px solid var(--color-line);
  vertical-align: top;
  line-height: 1.6;
}

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

.service-table tbody tr:hover td {
  background-color: #FAFBFC;
}

.table-footnote {
  font-size: 13px;
  color: var(--color-muted);
  padding: 0 4px;
}

/* 创作范围示例 */
.works-sample {
  margin-bottom: 56px;
}

.works-sample h2 {
  font-size: 24px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

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

.sample-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.sample-card:hover {
  box-shadow: 0 4px 20px rgba(26, 29, 36, 0.08);
  transform: translateY(-2px);
}

.sample-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.sample-card figcaption {
  padding: 16px 20px;
}

.sample-card .tag {
  display: inline-block;
  font-size: 12px;
  font-weight: var(--font-weight-heading);
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

/* 创作流程横条 */
.process-strip {
  margin-bottom: 56px;
}

.process-strip h2 {
  font-size: 24px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 24px;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.process-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
  transition: border-color var(--transition-base);
}

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

.step-num {
  display: block;
  font-size: 28px;
  font-weight: var(--font-weight-heading);
  color: var(--color-amber);
  margin-bottom: 8px;
}

.process-item h3 {
  font-size: 16px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 8px;
}

.process-item p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.process-item a {
  font-size: 14px;
  font-weight: var(--font-weight-heading);
}

/* 创作洞察摘要 */
.insights-summary {
  margin-bottom: 56px;
}

.insights-summary h2 {
  font-size: 24px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 24px;
}

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

.insight-list li {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: border-color var(--transition-base);
}

.insight-list li:hover {
  border-color: var(--color-accent);
}

.insight-list h3 {
  font-size: 16px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 8px;
}

.insight-list p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.insight-list a {
  font-size: 14px;
  font-weight: var(--font-weight-heading);
}

/* 合作咨询入口 */
.contact-entry {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 56px;
}

.contact-entry h2 {
  font-size: 24px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 12px;
}

.contact-entry > p {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

.contact-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.contact-steps li {
  font-size: 14px;
  color: var(--color-ink-soft);
  padding: 12px 16px;
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
  position: relative;
  padding-left: 40px;
}

.contact-steps li::before {
  content: attr(data-step);
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  font-weight: var(--font-weight-heading);
  color: var(--color-amber);
}

.contact-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.contact-links a {
  font-size: 14px;
  font-weight: var(--font-weight-heading);
}

/* 常见问题摘选 */
.faq-teaser {
  margin-bottom: 56px;
}

.faq-teaser h2 {
  font-size: 24px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 24px;
}

.all-faq-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 15px;
  font-weight: var(--font-weight-heading);
}

/* ============================================================
   Pages —— 服务项目页
   ============================================================ */

.summary-section {
  margin-bottom: 48px;
}

.summary-section p {
  font-size: 15px;
  color: var(--color-ink-soft);
  max-width: 760px;
}

.services-detail-section {
  margin-bottom: 48px;
}

.detail-media {
  margin-bottom: 32px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background-color: var(--color-white);
}

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

.detail-media figcaption {
  padding: 12px 20px;
  font-size: 13px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
}

.service-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 20px;
}

.service-item h3 {
  font-size: 20px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
}

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

.info-col h4 {
  font-size: 14px;
  font-weight: var(--font-weight-heading);
  color: var(--color-accent);
  margin-bottom: 8px;
}

.info-col p {
  font-size: 14px;
  color: var(--color-ink-soft);
  line-height: 1.65;
}

.comparison-section {
  margin-bottom: 48px;
}

.table-scroll {
  overflow-x: auto;
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.service-comparison-table {
  min-width: 720px;
}

.service-comparison-table thead th {
  background-color: #F0F2F5;
  padding: 14px 18px;
  font-size: 14px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  text-align: left;
  border-bottom: 1px solid var(--color-line);
}

.service-comparison-table tbody td {
  padding: 14px 18px;
  font-size: 14px;
  color: var(--color-ink-soft);
  border-bottom: 1px solid var(--color-line);
  vertical-align: top;
  line-height: 1.6;
}

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

.service-comparison-table tbody tr:hover td {
  background-color: #FAFBFC;
}

.misconception-section {
  margin-bottom: 48px;
}

.misconception-list li {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 12px;
}

.misconception-title {
  font-size: 15px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 4px;
}

.misconception-list li p:last-child {
  font-size: 14px;
  color: var(--color-muted);
}

.related-links-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
}

.related-links-section p {
  font-size: 15px;
  color: var(--color-ink-soft);
  margin-bottom: 8px;
}

/* ============================================================
   Pages —— 案例项目页
   ============================================================ */

.section-summary {
  margin-bottom: 48px;
}

.section-summary p {
  font-size: 15px;
  color: var(--color-ink-soft);
  max-width: 760px;
}

.section-works-groups {
  margin-bottom: 48px;
}

.section-works-groups > .section-title {
  margin-bottom: 32px;
}

.work-group {
  margin-bottom: 40px;
  padding: 28px;
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.group-title {
  font-size: 20px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 8px;
}

.group-description p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 20px;
  max-width: 760px;
}

.group-media {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.work-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background-color: var(--color-bg);
}

.work-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.work-figure figcaption {
  padding: 10px 16px;
  font-size: 13px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
}

/* 单图组：漫画短篇、IP视觉包 */
#group-comic .group-media,
#group-ip .group-media {
  grid-template-columns: 1fr;
  max-width: 640px;
}

#group-comic .work-figure img,
#group-ip .work-figure img {
  height: 280px;
}

.section-sample-notes {
  margin-bottom: 48px;
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.section-sample-notes p {
  font-size: 15px;
  color: var(--color-ink-soft);
  max-width: 760px;
}

.section-related-links {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
}

.section-related-links p {
  font-size: 15px;
  color: var(--color-ink-soft);
  margin-bottom: 8px;
}

.section-related-links a {
  font-weight: var(--font-weight-heading);
}

/* ============================================================
   Pages —— 创作流程页
   ============================================================ */

.process-summary {
  margin-bottom: 48px;
}

.process-summary p {
  font-size: 15px;
  color: var(--color-ink-soft);
  max-width: 760px;
}

.process-steps {
  margin-bottom: 48px;
}

.process-step {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 20px;
}

.step-number {
  font-size: 36px;
  font-weight: var(--font-weight-heading);
  color: var(--color-amber);
  line-height: 1;
}

.step-content h3 {
  font-size: 20px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 8px;
}

.step-content > p {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 16px;
  max-width: 760px;
}

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

.detail-row dt {
  font-size: 13px;
  font-weight: var(--font-weight-heading);
  color: var(--color-accent);
  margin-bottom: 4px;
}

.detail-row dd {
  font-size: 14px;
  color: var(--color-ink-soft);
  line-height: 1.6;
}

.delivery-standard {
  margin-bottom: 48px;
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.delivery-standard > p {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 20px;
  max-width: 760px;
}

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

.standard-item {
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 20px;
}

.standard-item h3 {
  font-size: 15px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 8px;
}

.standard-item p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

.process-faq-ref {
  margin-bottom: 48px;
}

.faq-more {
  margin-top: 12px;
}

.faq-more a {
  font-size: 14px;
  font-weight: var(--font-weight-heading);
}

.process-next {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 24px;
}

.process-next p {
  font-size: 15px;
  color: var(--color-ink-soft);
  margin-bottom: 8px;
}

/* 相关链接条 */
.related-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

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

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

/* ============================================================
   Pages —— 创作洞察页
   ============================================================ */

.insight-summary {
  margin-bottom: 48px;
}

.insight-summary p {
  font-size: 15px;
  color: var(--color-ink-soft);
  max-width: 760px;
}

.insight-topics {
  margin-bottom: 48px;
}

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

.topic-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.topic-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 20px rgba(26, 29, 36, 0.06);
}

.topic-card h3 {
  font-size: 17px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 8px;
}

.topic-card p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
  line-height: 1.65;
}

.topic-card a {
  font-size: 14px;
  font-weight: var(--font-weight-heading);
}

.insight-observations {
  margin-bottom: 48px;
}

.observation-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 20px;
}

#trend-observation.observation-item {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 24px;
  align-items: center;
}

.observation-content h3 {
  font-size: 18px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 8px;
}

.observation-point {
  font-size: 15px;
  color: var(--color-ink-soft);
  margin-bottom: 8px;
  font-weight: var(--font-weight-heading);
}

.observation-entry {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 12px;
  line-height: 1.65;
}

.observation-content a {
  font-size: 14px;
  font-weight: var(--font-weight-heading);
}

.observation-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-line);
}

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

.observation-media figcaption {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
}

.insight-method {
  margin-bottom: 48px;
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.insight-method p {
  font-size: 15px;
  color: var(--color-ink-soft);
  margin-bottom: 12px;
  max-width: 760px;
}

.insight-method p:last-child {
  margin-bottom: 0;
}

.insight-related {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
}

.insight-related > p {
  font-size: 15px;
  color: var(--color-ink-soft);
  margin-bottom: 12px;
}

.related-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.related-links a {
  font-size: 14px;
  font-weight: var(--font-weight-heading);
}

/* ============================================================
   Pages —— 常见问题页
   ============================================================ */

.faq-intro {
  margin-bottom: 40px;
}

.faq-intro p {
  font-size: 15px;
  color: var(--color-ink-soft);
  max-width: 760px;
}

.faq-groups {
  margin-bottom: 48px;
}

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

.faq-group-title {
  font-size: 18px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-accent);
  margin-bottom: 16px;
  display: inline-block;
}

.faq-group .faq-item {
  margin-bottom: 8px;
}

.faq-group .faq-item p a {
  font-weight: var(--font-weight-heading);
}

.faq-path {
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 32px;
}

.faq-path p {
  font-size: 15px;
  color: var(--color-ink-soft);
  line-height: 1.7;
}

.faq-path p a {
  font-weight: var(--font-weight-heading);
}

.faq-closing-visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background-color: var(--color-white);
}

.faq-closing-visual img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

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

.error-main {
  min-height: calc(100vh - var(--header-height) - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
}

.error-container {
  max-width: 560px;
  text-align: center;
  background-color: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
}

.error-code {
  font-size: 72px;
  font-weight: var(--font-weight-heading);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-container h1 {
  font-size: 24px;
  font-weight: var(--font-weight-heading);
  color: var(--color-ink);
  margin-bottom: 12px;
}

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

.error-back {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: 12px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: var(--font-weight-heading);
  margin-bottom: 24px;
  transition: background-color var(--transition-base);
}

.error-back:hover {
  background-color: #1748cc;
  color: var(--color-white);
}

.error-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.error-links a {
  font-size: 14px;
  font-weight: var(--font-weight-heading);
}

/* ============================================================
   Responsive —— 响应式断点
   ============================================================ */

/* 平板及以下 */
@media (max-width: 1024px) {
  .hero-split {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 0;
  }

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

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

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

  .insight-list {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .service-info-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .standard-list {
    grid-template-columns: repeat(3, 1fr);
  }

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

/* 手机端 */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
    height: 60px;
  }

  .brand {
    font-size: 18px;
  }

  /* 汉堡按钮显示 */
  .nav-toggle {
    display: flex;
  }

  /* 导航列表收起，由 .is-open 控制展开 */
  .site-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-line);
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 300ms ease;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px;
  }

  .nav-list li a {
    padding: 14px 12px;
    font-size: 16px;
    border-radius: var(--radius-sm);
  }

  .site-nav.is-open {
    max-height: 400px;
  }

  .site-main {
    padding: 0 16px;
  }

  .home-main {
    padding-bottom: 48px;
  }

  .inner-main {
    padding-top: 20px;
    padding-bottom: 48px;
  }

  /* 页脚 */
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
  }

  .footer-nav {
    gap: 12px;
    flex-wrap: wrap;
  }

  /* 首页 */
  .hero-split {
    padding: 32px 0 32px;
    gap: 24px;
  }

  .hero-left h1 {
    font-size: 28px;
  }

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

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

  .btn {
    text-align: center;
  }

  .hero-figure img {
    height: 220px;
  }

  .positioning-strip {
    padding: 20px;
    margin-bottom: 40px;
  }

  .services-overview {
    margin-bottom: 40px;
  }

  .segmented-control {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
  }

  .seg-btn {
    white-space: nowrap;
    padding: 10px 16px;
  }

  .service-table-wrap {
    overflow-x: auto;
  }

  .service-table {
    min-width: 560px;
  }

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

  .sample-card img {
    height: 200px;
  }

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

  .process-item {
    padding: 16px;
  }

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

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

  .contact-entry {
    padding: 24px 20px;
  }

  .contact-links {
    flex-direction: column;
    gap: 8px;
  }

  /* 内页标题 */
  .page-title {
    font-size: 26px;
  }

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

  .page-header {
    margin-bottom: 24px;
    padding-bottom: 16px;
  }

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

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

  /* 服务项目 */
  .service-info-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .service-item {
    padding: 20px;
  }

  .detail-media img {
    height: 200px;
  }

  .table-scroll {
    overflow-x: auto;
  }

  .service-comparison-table {
    min-width: 640px;
  }

  .misconception-list li {
    padding: 16px 20px;
  }

  .related-links-section {
    padding: 20px;
  }

  /* 案例项目 */
  .work-group {
    padding: 20px;
  }

  .group-media {
    grid-template-columns: 1fr;
  }

  #group-comic .group-media,
  #group-ip .group-media {
    grid-template-columns: 1fr;
  }

  .work-figure img {
    height: 200px;
  }

  #group-comic .work-figure img,
  #group-ip .work-figure img {
    height: 220px;
  }

  .section-sample-notes {
    padding: 20px;
  }

  .section-related-links {
    padding: 20px;
  }

  /* 创作流程 */
  .process-step {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 20px;
  }

  .step-number {
    font-size: 28px;
  }

  .step-detail {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .delivery-standard {
    padding: 20px;
  }

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

  .process-next {
    padding: 20px;
  }

  /* 创作洞察 */
  .topic-grid {
    grid-template-columns: 1fr;
  }

  .topic-card {
    padding: 20px;
  }

  .observation-item {
    padding: 20px;
  }

  #trend-observation.observation-item {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .observation-media img {
    height: 180px;
  }

  .insight-method {
    padding: 20px;
  }

  .insight-related {
    padding: 20px;
  }

  /* 常见问题 */
  .faq-group-title {
    font-size: 16px;
  }

  .faq-path {
    padding: 20px;
  }

  .faq-closing-visual img {
    height: 180px;
  }

  /* 404 */
  .error-container {
    padding: 32px 24px;
  }

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

  .error-links {
    gap: 12px;
  }
}

/* 超小屏 */
@media (max-width: 390px) {
  .process-list {
    grid-template-columns: 1fr;
  }

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

  .hero-left h1 {
    font-size: 24px;
  }

  .hero-kicker {
    font-size: 13px;
  }

  .hero-intro {
    font-size: 14px;
  }

  .section-heading h2,
  .works-sample h2,
  .process-strip h2,
  .insights-summary h2,
  .contact-entry h2,
  .faq-teaser h2 {
    font-size: 20px;
  }

  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }

  .faq-item summary {
    padding: 14px 40px 14px 16px;
    font-size: 14px;
  }

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

  .brand {
    font-size: 17px;
  }
}