/* ============================================================
   xbncpzx.com - 51吃瓜onlyfans 企业官网
   报纸编辑风 · 黑白为主 · 细分隔线 · 多栏内容
   ============================================================ */

/* ============================================================
   Base / 基础
   ============================================================ */
:root {
  --color-text: #0a0a0a;
  --color-bg: #f5f3ee;
  --color-gray: #8a8a8a;
  --color-accent: #c8a45a;
  --color-border: #d8d5cd;
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --transition: 0.2s ease;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  word-wrap: break-word;
}

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.4;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 0.5rem;
}

/* 屏幕阅读器专用 */
.sr-only,
.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 / 布局骨架
   ============================================================ */
.site-header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-logo {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
  color: var(--color-text);
}

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

.site-nav ul {
  display: flex;
  gap: 28px;
}

.site-nav a {
  font-size: 15px;
  color: var(--color-text);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

.site-nav a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.site-nav a.is-current {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  flex-direction: column;
  gap: 5px;
}

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

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

/* 内页统一容器 */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 64px;
}

/* 面包屑 */
.breadcrumb {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

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

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

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

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

/* 页面标题区 */
.page-header {
  margin-bottom: 24px;
}

.page-title {
  font-size: 32px;
  line-height: 1.3;
}

.page-title-area,
.page-title-block {
  margin-bottom: 32px;
}

.page-subtitle {
  font-size: 16px;
  color: var(--color-gray);
  max-width: 720px;
  margin-top: 8px;
}

.title-divider {
  height: 1px;
  background-color: var(--color-border);
  margin-top: 20px;
}

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

/* 按钮 */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}

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

.btn-primary:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
}

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

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

.button-link {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  background-color: var(--color-text);
  color: var(--color-bg);
  border: 1px solid var(--color-text);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), border-color var(--transition);
}

.button-link:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg);
}

/* 文本链接 */
.text-link {
  display: inline-block;
  font-size: 15px;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
}

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

/* Section 标题 */
.section-heading,
.section-heading-row {
  margin-bottom: 28px;
}

.section-heading h2,
.section-heading-row h2 {
  font-size: 24px;
  margin-bottom: 6px;
}

.section-heading p,
.section-heading-row p {
  color: var(--color-gray);
  font-size: 15px;
}

.section-kicker {
  font-size: 13px;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.section-lead,
.section-intro {
  font-size: 16px;
  color: var(--color-gray);
  margin-bottom: 24px;
  max-width: 720px;
}

/* 固定摘要侧栏布局 */
.layout-shell {
  display: grid;
  gap: 40px;
  align-items: start;
}

.sidebar-left {
  grid-template-columns: 260px minmax(0, 1fr);
}

.sidebar-left .summary-sidebar {
  grid-column: 1;
  grid-row: 1;
}

.sidebar-left .main-content,
.sidebar-left .content-body,
.sidebar-left .content-main {
  grid-column: 2;
  grid-row: 1;
}

/* 摘要侧栏 */
.summary-sidebar {
  position: sticky;
  top: 92px;
}

.summary-inner,
.summary-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 24px;
}

.summary-heading {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.summary-list li {
  margin-bottom: 10px;
}

.summary-list a {
  font-size: 14px;
  color: var(--color-gray);
  padding-left: 12px;
  border-left: 2px solid var(--color-border);
  transition: color var(--transition), border-color var(--transition);
}

.summary-list a:hover {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
}

/* 相关链接底部导航（内页底部） */
.related-links {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 24px 24px 48px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--color-border);
}

.related-links-label {
  font-size: 14px;
  color: var(--color-gray);
  font-weight: 500;
}

.related-links-item {
  font-size: 14px;
  color: var(--color-text);
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), color var(--transition);
}

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

/* 内容区块 */
.content-section {
  margin-bottom: 48px;
}

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

/* ============================================================
   Pages / 页面
   ============================================================ */

/* ---------- 首页 index.html ---------- */
.site-home {
  background-color: var(--color-bg);
}

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

/* 首屏杂志目录 */
.hero-magazine {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  padding: 48px 0;
  border-bottom: 2px solid var(--color-text);
  margin-bottom: 56px;
}

.hero-cover {
  padding-right: 24px;
}

.issue-label {
  font-size: 13px;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 8px;
  display: inline-block;
}

.hero-cover h1 {
  font-size: 32px;
  line-height: 1.3;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  color: var(--color-gray);
  margin-bottom: 24px;
  max-width: 480px;
}

.hero-figure {
  margin-top: 24px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

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

.hero-toc {
  border-left: 1px solid var(--color-border);
  padding-left: 32px;
}

.hero-toc h2 {
  font-size: 20px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.toc-list li {
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}

.toc-list a {
  font-size: 16px;
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

.toc-list p {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

/* 服务矩阵 */
.service-matrix {
  margin-bottom: 56px;
}

.service-matrix .section-heading {
  margin-bottom: 24px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-matrix .service-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 24px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.service-matrix .service-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.service-matrix .service-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.service-matrix .service-card p {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 12px;
}

.service-matrix .service-card a {
  font-size: 14px;
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
}

.service-matrix .service-card a:hover {
  border-bottom-color: var(--color-accent);
}

/* 工作方式预览 */
.method-preview {
  margin-bottom: 56px;
  border-top: 1px solid var(--color-border);
  padding-top: 40px;
}

.process-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 20px;
}

.process-strip .process-node {
  border-left: 2px solid var(--color-border);
  padding-left: 16px;
}

.process-strip .process-node:hover {
  border-left-color: var(--color-accent);
}

.process-strip .node-number {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--color-accent);
  display: block;
  margin-bottom: 6px;
}

.process-strip .process-node h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.process-strip .process-node p {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

/* 业务场景 */
.scenario-section {
  margin-bottom: 56px;
  border-top: 1px solid var(--color-border);
  padding-top: 40px;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.scenario-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.scenario-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.scenario-card figure {
  border-bottom: 1px solid var(--color-border);
}

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

.scenario-card h3 {
  font-size: 17px;
  padding: 16px 20px 6px;
}

.scenario-card p {
  font-size: 14px;
  color: var(--color-gray);
  padding: 0 20px;
  margin-bottom: 12px;
}

.scenario-card a {
  display: inline-block;
  font-size: 14px;
  color: var(--color-accent);
  margin: 0 20px 16px;
  border-bottom: 1px solid transparent;
}

.scenario-card a:hover {
  border-bottom-color: var(--color-accent);
}

/* 合作流程预览 */
.cooperation-preview {
  margin-bottom: 56px;
  border-top: 1px solid var(--color-border);
  padding-top: 40px;
}

.cooperation-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 20px;
}

.cooperation-steps li {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px;
  transition: border-color var(--transition);
}

.cooperation-steps li:hover {
  border-color: var(--color-accent);
}

.cooperation-steps .step-number {
  font-family: var(--font-serif);
  font-size: 24px;
  color: var(--color-accent);
  display: block;
  margin-bottom: 8px;
}

.step-content h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.step-content p {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

/* 常见问题精选 */
.faq-highlight {
  margin-bottom: 56px;
  border-top: 1px solid var(--color-border);
  padding-top: 40px;
}

.faq-columns {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 20px;
}

.faq-highlight .faq-item {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 16px;
}

.faq-highlight .faq-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.faq-highlight .faq-item p {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

/* 咨询入口板 */
.consult-entry {
  text-align: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 48px 24px;
  background-color: var(--color-bg);
}

.consult-entry h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.consult-entry p {
  color: var(--color-gray);
  font-size: 15px;
  margin-bottom: 24px;
}

.entry-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- 关于我们 about.html ---------- */
.site-inner {
  background-color: var(--color-bg);
}

.page-about .layout-shell {
  margin-top: 8px;
}

.team-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  margin-bottom: 32px;
  align-items: start;
}

.team-image-block .content-figure {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.team-image-block img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.team-copy p {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 12px;
}

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

.role-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px;
}

.role-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.role-item p {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

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

.principle-item {
  border-left: 2px solid var(--color-border);
  padding-left: 16px;
}

.principle-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.principle-item p {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

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

.collab-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px;
}

.collab-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.collab-item p {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

.method-entry {
  margin-top: 24px;
  padding: 20px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.method-entry p {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 12px;
}

.method-entry a {
  font-size: 15px;
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
}

.method-entry a:hover {
  border-bottom-color: var(--color-accent);
}

/* 相关链接块（about 内） */
.related-links-block {
  margin-top: 48px;
  border-top: 1px solid var(--color-border);
  padding-top: 32px;
}

.related-links-block h2 {
  font-size: 20px;
  margin-bottom: 20px;
}

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

.related-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px;
}

.related-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

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

.related-item a {
  font-size: 14px;
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
}

.related-item a:hover {
  border-bottom-color: var(--color-accent);
}

/* ---------- 业务目录 services.html ---------- */
.filter-note {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin-bottom: 32px;
}

.filter-note p {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.service-list .service-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.service-list .service-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.card-media {
  border-bottom: 1px solid var(--color-border);
}

.card-media img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.card-body {
  padding: 20px;
}

.service-name {
  font-size: 18px;
  margin-bottom: 4px;
}

.version-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  margin-bottom: 10px;
}

.card-body > p {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 12px;
}

.deliverables {
  margin-bottom: 16px;
}

.deliverables li {
  font-size: 14px;
  color: var(--color-text);
  padding-left: 16px;
  position: relative;
  margin-bottom: 4px;
}

.deliverables li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.card-link {
  font-size: 14px;
  color: var(--color-accent);
  border-bottom: 1px solid transparent;
}

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

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

.pagination-note p {
  font-size: 14px;
  color: var(--color-gray);
  margin-bottom: 4px;
}

/* ---------- 工作方式 method.html ---------- */
.page-method .content-body {
  min-width: 0;
}

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

.workflow-section .process-node {
  border-left: 2px solid var(--color-border);
  padding-left: 24px;
  margin-bottom: 32px;
  position: relative;
}

.workflow-section .process-node::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.workflow-section .node-index {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--color-accent);
  margin-bottom: 4px;
}

.workflow-section .node-content h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.workflow-section .node-content p {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 8px;
}

.workflow-section .node-output {
  font-size: 14px;
  color: var(--color-gray);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: inline-block;
}

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

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

.collab-list li {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px;
}

.collab-list h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.collab-list p {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

.workflow-figure {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 48px;
}

.workflow-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.workflow-figure figcaption {
  font-size: 13px;
  color: var(--color-gray);
  padding: 12px 16px;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

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

.related-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px;
  display: block;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.related-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.related-card h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.related-card p {
  font-size: 14px;
  color: var(--color-gray);
  margin: 0;
}

/* ---------- 合作流程 cooperation.html ---------- */
.page-cooperation .container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.page-cooperation .page-title-area {
  margin-bottom: 32px;
}

.process-section {
  margin-bottom: 40px;
}

.process-section .section-heading {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.process-section .step-number {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--color-accent);
  font-weight: 700;
}

.process-section .section-heading h2 {
  font-size: 22px;
  margin: 0;
}

.process-section > p {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 10px;
}

.step-output {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-top: 12px;
}

.output-label {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 6px;
}

.step-output ul {
  padding-left: 4px;
}

.step-output li {
  font-size: 14px;
  color: var(--color-gray);
  padding-left: 16px;
  position: relative;
  margin-bottom: 4px;
}

.step-output li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.conditions-section {
  margin-bottom: 40px;
}

.conditions-section h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.conditions-section > p {
  font-size: 15px;
  color: var(--color-gray);
  margin-bottom: 16px;
}

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

.condition-list li {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px;
  font-size: 14px;
  color: var(--color-text);
}

.process-figure {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 48px;
}

.process-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.process-figure figcaption {
  font-size: 13px;
  color: var(--color-gray);
  padding: 12px 16px;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

/* ---------- 常见问题 faq.html ---------- */
.faq-intro-figure {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 40px;
}

.faq-intro-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.faq-intro-figure figcaption {
  font-size: 13px;
  color: var(--color-gray);
  padding: 12px 16px;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

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

.faq-section h2 {
  font-size: 22px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg);
}

.faq-item summary {
  font-size: 16px;
  font-weight: 600;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 40px;
}

.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);
  transition: transform var(--transition);
}

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

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

.faq-more-entry {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid var(--color-border);
}

.faq-more-entry p {
  font-size: 15px;
  color: var(--color-gray);
  margin-bottom: 20px;
}

/* ---------- 404 页 ---------- */
.site-error {
  background-color: var(--color-bg);
}

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

.error-section {
  text-align: center;
  max-width: 520px;
}

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

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

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

.error-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   Footer / 页脚
   ============================================================ */
.site-footer {
  background-color: var(--color-text);
  color: var(--color-bg);
  padding: 48px 0 0;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 40px;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 48px;
}

.footer-brand-name {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  color: rgba(245, 243, 238, 0.7);
  line-height: 1.7;
}

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

.footer-links ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px 16px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(245, 243, 238, 0.7);
  transition: color var(--transition);
}

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

.footer-meta p {
  font-size: 14px;
  color: rgba(245, 243, 238, 0.7);
  margin-bottom: 8px;
}

.footer-bottom {
  border-top: 1px solid rgba(245, 243, 238, 0.15);
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(245, 243, 238, 0.5);
  max-width: var(--container-width);
  margin: 0 auto;
}

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

/* 平板 992px */
@media (max-width: 992px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

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

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

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

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

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

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

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 0 16px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
  }

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

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

  .site-nav a {
    display: block;
    padding: 14px 4px;
    font-size: 15px;
    border-bottom: none;
  }

  .site-nav a.is-current {
    color: var(--color-accent);
    border-bottom: none;
  }

  .site-nav.is-open {
    max-height: 420px;
  }

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

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

  /* 首页 */
  .hero-magazine {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 32px 0;
  }

  .hero-cover {
    padding-right: 0;
  }

  .hero-toc {
    border-left: none;
    border-top: 1px solid var(--color-border);
    padding-left: 0;
    padding-top: 24px;
  }

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

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

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

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

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

  .consult-entry {
    padding: 32px 16px;
  }

  .entry-actions {
    flex-direction: column;
    align-items: center;
  }

  .entry-actions .btn-primary,
  .entry-actions .btn-secondary {
    width: 100%;
    text-align: center;
  }

  /* 侧栏布局：移动端摘要栏移到正文之后 */
  .layout-shell.sidebar-left {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }

  .sidebar-left .summary-sidebar {
    order: 2;
    position: static;
    width: 100%;
  }

  .sidebar-left .main-content,
  .sidebar-left .content-body,
  .sidebar-left .content-main {
    order: 1;
    width: 100%;
  }

  /* 关于我们 */
  .team-layout {
    grid-template-columns: 1fr;
  }

  .team-roles {
    grid-template-columns: 1fr;
  }

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

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

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

  /* 业务目录 */
  .service-list {
    grid-template-columns: 1fr;
  }

  /* 工作方式 */
  .collab-list {
    grid-template-columns: 1fr;
  }

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

  /* 合作流程 */
  .condition-list {
    grid-template-columns: 1fr;
  }

  .page-cooperation .container {
    padding: 0 16px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 0 16px 32px;
  }

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

  .footer-bottom {
    padding: 16px;
  }

  .related-links {
    padding: 16px;
  }

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

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

/* 大屏 1200px 以上 */
@media (min-width: 1200px) {
  .hero-cover h1 {
    font-size: 36px;
  }
}

/* 程序验收反馈：移动端正文优先 */
@media (max-width: 768px) {
  .site-main :is(.page-content, .main-content, .content-main) {
    order: 1;
  }

  .site-main :is(aside, .sidebar) {
    order: 2;
  }
}