/* ============================================================
   base — 变量、reset、基础排版
   ============================================================ */
:root {
  --color-bg: #F7F5F2;
  --color-card: #FFFFFF;
  --color-text: #2B2B2B;
  --color-accent: #A98F6A;
  --color-border: #C9BEA5;
  --color-muted: #6f6a63;
  --font-body: 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-title: 'Noto Serif SC', 'Songti SC', serif;
  --container-width: 1200px;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(43, 43, 43, 0.06);
  --shadow-hover: 0 6px 24px rgba(43, 43, 43, 0.1);
}

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

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

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

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

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

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

h4 {
  font-size: 16px;
}

p {
  margin-bottom: 0.8em;
}

/* ============================================================
   layout — 全站骨架容器
   ============================================================ */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  background-color: var(--color-card);
  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: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.brand-name {
  font-family: var(--font-title);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.5px;
}

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

.site-nav .nav-list a {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: 4px;
  position: relative;
}

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

.site-nav .nav-list a.is-current {
  color: var(--color-accent);
  font-weight: 600;
}

.site-nav .nav-list a.is-current::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background-color: var(--color-accent);
  border-radius: 1px;
}

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

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

.layout-shell {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 64px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

.layout-shell > .inner-main {
  padding: 0;
  max-width: none;
}

.layout-shell > .sidebar,
.layout-shell > .sidebar-right {
  position: sticky;
  top: 88px;
}

.page-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 64px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}

.page-layout > .main-content {
  min-width: 0;
}

.page-layout > .sidebar {
  position: sticky;
  top: 88px;
}

/* 侧栏在前的布局（DOM 中 aside 在 main 之前） */
.sidebar-left .page-layout,
.sidebar-left.layout-shell {
  grid-template-columns: 300px 1fr;
}

.sidebar-left .page-layout > .sidebar,
.sidebar-left.layout-shell > .sidebar {
  order: 0;
}

.sidebar-left .page-layout > .main-content,
.sidebar-left.layout-shell > .inner-main {
  order: 1;
}

/* 首页特殊：home-main 直接子元素纵向排列 */
.home-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 64px;
}

/* ============================================================
   components — 通用组件
   ============================================================ */
/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
}

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

.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: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.page-title {
  font-size: 28px;
  margin-bottom: 12px;
}

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

/* 按钮 */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s ease;
  min-height: 44px;
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background-color: #977c58;
  color: #fff;
}

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

.btn-secondary:hover {
  background-color: rgba(169, 143, 106, 0.08);
  color: #977c58;
}

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

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

.section-heading p {
  color: var(--color-muted);
  font-size: 15px;
  max-width: 640px;
}

/* 图片容器 */
figure {
  margin: 0;
}

figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

/* 侧栏通用 */
.sidebar-inner {
  background-color: var(--color-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--color-border);
}

.sidebar-inner h2,
.sidebar-card h2,
.aside-guide h2 {
  font-size: 17px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-nav li,
.sidebar-links li,
.aside-guide li {
  margin-bottom: 4px;
}

.sidebar-nav a,
.sidebar-links a,
.aside-guide a {
  display: block;
  padding: 10px 12px;
  font-size: 15px;
  border-radius: 4px;
  transition: background-color 0.2s ease;
}

.sidebar-nav a:hover,
.sidebar-links a:hover,
.aside-guide a:hover {
  background-color: rgba(169, 143, 106, 0.08);
  color: var(--color-accent);
}

.sidebar-nav a.is-current,
.sidebar-links a.is-current,
.aside-guide a.is-current {
  background-color: rgba(169, 143, 106, 0.12);
  color: var(--color-accent);
  font-weight: 600;
}

.sidebar-note {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ============================================================
   components — 首页模块
   ============================================================ */
.hero-section {
  padding: 64px 0 48px;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}

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

.hero-lead {
  font-size: 16px;
  color: var(--color-muted);
  margin-bottom: 20px;
  max-width: 520px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.hero-tags span {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  background-color: rgba(169, 143, 106, 0.1);
  color: var(--color-accent);
  border-radius: 20px;
}

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

.hero-media {
  position: relative;
}

.hero-figure {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow);
}

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

/* 服务概览 */
.service-overview {
  padding: 48px 0;
}

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

.service-group-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.service-group-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.service-group-item h3 {
  font-size: 16px;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

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

.service-link-more,
.project-link-more,
.process-link-more,
.buzz-link-more {
  margin-top: 24px;
  text-align: right;
}

.service-link-more a,
.project-link-more a,
.process-link-more a,
.buzz-link-more a {
  font-size: 15px;
  color: var(--color-accent);
  font-weight: 500;
}

.service-link-more a:hover,
.project-link-more a:hover,
.process-link-more a:hover,
.buzz-link-more a:hover {
  color: #977c58;
}

/* 项目预览 */
.project-preview {
  padding: 48px 0;
}

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

.project-card {
  background-color: var(--color-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.project-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.project-card h3 {
  padding: 16px 20px 4px;
  font-size: 17px;
}

.project-card p {
  padding: 0 20px;
  font-size: 14px;
  color: var(--color-muted);
  flex: 1;
}

.project-card a {
  display: inline-block;
  margin: 12px 20px 20px;
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
}

.project-card a:hover {
  color: #977c58;
}

/* 流程预览 */
.process-preview {
  padding: 48px 0;
}

.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  counter-reset: step;
}

.process-step {
  position: relative;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 16px 20px;
  text-align: center;
  transition: box-shadow 0.2s ease;
}

.process-step:hover {
  box-shadow: var(--shadow-hover);
}

.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: rgba(169, 143, 106, 0.12);
  color: var(--color-accent);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 12px;
}

.process-step h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.process-step p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.5;
}

/* 资讯预览 */
.buzz-preview {
  padding: 48px 0;
}

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

.buzz-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
}

.buzz-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

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

.buzz-card h3 {
  padding: 14px 16px 4px;
  font-size: 15px;
  line-height: 1.4;
}

.buzz-card p {
  padding: 0 16px;
  font-size: 13px;
  color: var(--color-muted);
  flex: 1;
}

.buzz-card a {
  display: inline-block;
  margin: 10px 16px 16px;
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
}

.buzz-card a:hover {
  color: #977c58;
}

/* CTA 区块 */
.cooperation-cta {
  padding: 56px 0;
}

.cta-content {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 48px 40px;
  text-align: center;
}

.cta-content h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.cta-content p {
  color: var(--color-muted);
  max-width: 560px;
  margin: 0 auto 28px;
}

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

/* 相关链接导航 */
.related-links {
  margin-top: 40px;
  padding: 24px 0;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

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

.related-links-item {
  font-size: 14px;
  color: var(--color-accent);
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: all 0.2s ease;
}

.related-links-item:hover {
  border-color: var(--color-accent);
  background-color: rgba(169, 143, 106, 0.06);
}

/* ============================================================
   components — 内页通用模块
   ============================================================ */
/* 服务范围页 */
.service-groups .content-media-inline {
  margin: 24px 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.service-groups .content-media-inline img {
  aspect-ratio: 16 / 7;
  width: 100%;
  object-fit: cover;
}

.service-group {
  margin-bottom: 40px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}

.service-group h3 {
  font-size: 18px;
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.service-group > p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
}

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

.service-item-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  background-color: var(--color-bg);
  border-radius: 4px;
}

.service-item-list li::before {
  content: '';
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  border: 1.5px solid var(--color-accent);
  border-radius: 3px;
  background-color: rgba(169, 143, 106, 0.12);
}

.service-item-name {
  font-weight: 600;
  font-size: 15px;
  display: block;
}

.service-item-desc {
  font-size: 13px;
  color: var(--color-muted);
  display: block;
  margin-top: 2px;
}

.service-boundary {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 40px;
}

.service-boundary h2 {
  margin-bottom: 12px;
}

.service-boundary > p {
  font-size: 14px;
  color: var(--color-muted);
}

.boundary-list {
  margin: 16px 0;
}

.boundary-list li {
  padding: 8px 0 8px 24px;
  position: relative;
  font-size: 14px;
  border-bottom: 1px dashed var(--color-border);
}

.boundary-list li::before {
  content: '×';
  position: absolute;
  left: 0;
  color: #b0806a;
  font-weight: 700;
}

.cooperation-entry {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

.cooperation-entry h2 {
  margin-bottom: 12px;
}

.cooperation-entry p {
  font-size: 14px;
  color: var(--color-muted);
  max-width: 560px;
  margin: 0 auto 12px;
}

.cooperation-entry .btn-primary,
.cooperation-entry .btn-secondary {
  margin: 8px;
}

/* 项目类型页 */
.category-tabs {
  margin-bottom: 40px;
}

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tab-item {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--color-muted);
}

.tab-item.is-active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.project-group {
  margin-bottom: 48px;
}

.project-group > h2 {
  margin-bottom: 8px;
}

.project-group > p {
  color: var(--color-muted);
  font-size: 14px;
  margin-bottom: 20px;
}

.project-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.project-cards-grid .project-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.card-media {
  overflow: hidden;
}

.card-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.project-card:hover .card-media img {
  transform: scale(1.03);
}

.project-cards-grid .project-card h3 {
  padding: 16px 20px 4px;
}

.meta-list {
  padding: 0 20px;
  margin-bottom: 8px;
}

.meta-list li {
  font-size: 13px;
  color: var(--color-muted);
  padding: 2px 0;
}

.meta-list li::before {
  content: '·';
  color: var(--color-accent);
  font-weight: 700;
  margin-right: 6px;
}

.project-cards-grid .project-card > p {
  font-size: 14px;
  color: var(--color-muted);
  padding: 0 20px;
  flex: 1;
}

.project-cards-grid .project-card > a {
  display: inline-block;
  margin: 12px 20px 20px;
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
}

.customization-note {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 40px;
}

.customization-note h2 {
  margin-bottom: 10px;
}

.customization-note p {
  font-size: 14px;
  color: var(--color-muted);
}

.customization-note a {
  color: var(--color-accent);
  font-weight: 500;
}

/* 实施流程页 */
.process-section {
  margin-bottom: 48px;
}

.process-section > h2 {
  margin-bottom: 24px;
}

.process-stage {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
}

.process-stage h3 {
  font-size: 18px;
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.process-stage > p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 20px;
}

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

.stage-col {
  background-color: var(--color-bg);
  border-radius: 4px;
  padding: 16px;
}

.stage-col h4 {
  font-size: 14px;
  margin-bottom: 10px;
  color: var(--color-accent);
}

.stage-col ul li {
  font-size: 13px;
  color: var(--color-text);
  padding: 4px 0;
  position: relative;
  padding-left: 16px;
}

.stage-col ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

.process-media {
  margin: 32px 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.process-media img {
  aspect-ratio: 16 / 6;
  width: 100%;
  object-fit: cover;
}

.faq-section {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 32px;
}

.faq-section > h2 {
  margin-bottom: 20px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item summary {
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  padding: 8px 0;
  list-style: none;
  position: relative;
  padding-right: 32px;
}

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

.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 8px;
  font-size: 20px;
  color: var(--color-accent);
  font-weight: 400;
  transition: transform 0.2s ease;
}

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

.faq-item p {
  font-size: 14px;
  color: var(--color-muted);
  padding: 8px 0 4px;
}

.process-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.process-links p {
  margin: 0;
}

.process-links a {
  display: inline-block;
  padding: 10px 24px;
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all 0.2s ease;
  color: var(--color-text);
}

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

/* 侧栏卡片（process） */
.sidebar-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.sidebar-right .sidebar-note {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 0;
  border-top: 1px solid var(--color-border);
}

.sidebar-right .sidebar-note h2 {
  font-size: 17px;
  margin-bottom: 12px;
}

.sidebar-right .sidebar-note p {
  font-size: 14px;
  color: var(--color-muted);
}

.sidebar-right .sidebar-note a {
  color: var(--color-accent);
  font-weight: 500;
}

/* 现场保障页 */
.checklist-section {
  margin-bottom: 48px;
}

.checklist-section > h2 {
  margin-bottom: 8px;
}

.section-lead {
  color: var(--color-muted);
  font-size: 14px;
  margin-bottom: 24px;
}

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

.check-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow 0.2s ease;
}

.check-item:hover {
  box-shadow: var(--shadow-hover);
}

.check-item h3 {
  font-size: 16px;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-accent);
}

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

.layout-section {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 32px;
}

.layout-section > h2 {
  margin-bottom: 16px;
}

.layout-figure {
  margin-bottom: 16px;
  border-radius: var(--radius);
  overflow: hidden;
}

.layout-figure img {
  aspect-ratio: 16 / 5;
  width: 100%;
  object-fit: cover;
}

.layout-section > p {
  font-size: 14px;
  color: var(--color-muted);
}

.backup-section {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 32px;
}

.backup-section > h2 {
  margin-bottom: 12px;
}

.backup-section > p {
  font-size: 14px;
  color: var(--color-muted);
}

.backup-list {
  margin: 16px 0;
}

.backup-list li {
  padding: 8px 0 8px 24px;
  position: relative;
  font-size: 14px;
  border-bottom: 1px dashed var(--color-border);
}

.backup-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.cooperation-note {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}

.cooperation-note h2 {
  margin-bottom: 12px;
}

.cooperation-note p {
  font-size: 14px;
  color: var(--color-muted);
}

/* 合作准备页 */
.prepare-section {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
}

.prepare-section > h2 {
  margin-bottom: 8px;
}

.prepare-section > p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  border-bottom: 1px dashed var(--color-border);
}

.checklist li::before {
  content: '';
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1.5px solid var(--color-border);
  border-radius: 3px;
  transition: border-color 0.2s ease;
}

.checklist li:hover::before {
  border-color: var(--color-accent);
}

.prepare-section.next-steps {
  text-align: center;
}

.next-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.next-links a {
  display: inline-block;
  padding: 10px 24px;
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all 0.2s ease;
}

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

.prepare-media {
  margin-top: 32px;
  border-radius: var(--radius);
  overflow: hidden;
}

.prepare-media img {
  aspect-ratio: 16 / 5;
  width: 100%;
  object-fit: cover;
}

/* 资讯页 */
.buzz-layout {
  max-width: 860px;
}

.category-filter {
  margin-bottom: 32px;
}

.category-filter > h2 {
  font-size: 16px;
  margin-bottom: 12px;
  color: var(--color-muted);
  font-weight: 500;
}

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

.filter-tag {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: var(--color-muted);
}

.filter-tag.is-active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.article-list > h2 {
  margin-bottom: 24px;
}

.article-list .buzz-card {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 0;
  margin-bottom: 20px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.article-list .buzz-card:hover {
  box-shadow: var(--shadow-hover);
}

.article-list .card-media {
  height: 100%;
}

.article-list .card-media img {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.article-list .card-content {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
}

.card-category {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 8px;
}

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

.card-content h3 a {
  color: var(--color-text);
}

.card-content h3 a:hover {
  color: var(--color-accent);
}

.card-content > p {
  font-size: 14px;
  color: var(--color-muted);
  flex: 1;
}

.card-link {
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
  margin-top: 12px;
}

.notice {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-top: 32px;
}

.notice h2 {
  font-size: 17px;
  margin-bottom: 10px;
}

.notice p {
  font-size: 14px;
  color: var(--color-muted);
}

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

/* ============================================================
   components — 页脚
   ============================================================ */
.site-footer {
  background-color: var(--color-card);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
}

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

.footer-brand p:not(.footer-brand-name) {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}

.footer-nav h2,
.footer-buzz h2,
.footer-prepare h2 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.footer-nav li,
.footer-buzz li {
  margin-bottom: 8px;
}

.footer-nav a,
.footer-buzz a {
  font-size: 14px;
  color: var(--color-muted);
  transition: color 0.2s ease;
}

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

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

.footer-prepare a {
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
}

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

.footer-bottom p {
  font-size: 13px;
  color: var(--color-muted);
  margin: 0;
}

/* ============================================================
   pages — 404
   ============================================================ */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  flex: 1;
}

.error-panel {
  text-align: center;
  max-width: 480px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 48px 40px;
}

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

.error-panel h1 {
  font-size: 22px;
  margin-bottom: 12px;
}

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

/* ============================================================
   responsive — 响应式断点
   ============================================================ */
/* 平板 */
@media (max-width: 1024px) {
  .layout-shell,
  .page-layout {
    grid-template-columns: 1fr 260px;
    gap: 24px;
  }

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

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

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

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

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

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

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

  .hero-media {
    max-width: 640px;
  }
}

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

  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
  }

  .nav-toggle-bar {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-text);
    border-radius: 1px;
    transition: all 0.3s ease;
    margin: 0 auto;
  }

  .site-nav {
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background-color: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
  }

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

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

  .site-nav .nav-list a {
    padding: 14px 12px;
    font-size: 16px;
    border-bottom: 1px solid var(--color-border);
  }

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

  .site-nav .nav-list a.is-current::after {
    display: none;
  }

  .site-nav .nav-list a.is-current {
    background-color: rgba(169, 143, 106, 0.08);
  }

  .layout-shell,
  .page-layout {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 24px 16px 48px;
  }

  .layout-shell > .sidebar,
  .layout-shell > .sidebar-right,
  .page-layout > .sidebar {
    position: static;
    order: 2;
  }

  .layout-shell > .inner-main,
  .page-layout > .main-content {
    order: 1;
  }

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

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

  .hero-section {
    padding: 40px 0 32px;
  }

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

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

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

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

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

  .process-timeline {
    grid-template-columns: 1fr;
  }

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

  .cta-content {
    padding: 32px 20px;
  }

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

  .cta-actions .btn-primary,
  .cta-actions .btn-secondary {
    width: 100%;
  }

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

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

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

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

  .article-list .buzz-card {
    grid-template-columns: 1fr;
  }

  .article-list .card-media img {
    aspect-ratio: 16 / 9;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 16px 24px;
  }

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

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

  .related-links {
    flex-direction: column;
    align-items: flex-start;
  }

  .process-links,
  .next-links {
    flex-direction: column;
  }

  .process-links a,
  .next-links a {
    width: 100%;
    text-align: center;
  }

  .cooperation-entry .btn-primary,
  .cooperation-entry .btn-secondary {
    width: 100%;
    margin: 8px 0;
  }
}

/* 小屏手机 */
@media (max-width: 390px) {
  .brand-name {
    font-size: 18px;
  }

  .hero-copy h1 {
    font-size: 22px;
  }

  .service-group-item,
  .process-stage,
  .service-boundary,
  .cooperation-entry,
  .prepare-section,
  .check-item,
  .layout-section,
  .backup-section,
  .cooperation-note,
  .customization-note,
  .faq-section {
    padding: 20px 16px;
  }

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