/* ============================================================
   吃瓜官网 - 全站样式表
   13227700020.com
   ============================================================ */

/* ============================================================
   1. Base / 基础重置与全局变量
   ============================================================ */
:root {
  --color-primary: #075E5B;
  --color-primary-dark: #064A48;
  --color-accent: #F4A26A;
  --color-accent-dark: #E08A4E;
  --color-bg: #F7F5F0;
  --color-text: #1A1A1A;
  --color-text-light: #5A5A5A;
  --color-border: #D8D4CC;
  --color-white: #FFFFFF;
  --color-bg-alt: #EFEDE7;
  --font-base: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.10);
  --transition: 0.25s ease;
}

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

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

body {
  font-family: var(--font-base);
  font-size: 15px;
  line-height: 1.8;
  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-primary);
  text-decoration: none;
  transition: color var(--transition);
}

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

ul,
ol {
  list-style: none;
}

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

/* ============================================================
   2. Layout / 全站骨架布局
   ============================================================ */

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

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
  flex-shrink: 0;
}

.brand-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.brand-slogan {
  font-size: 12px;
  color: var(--color-text-light);
  letter-spacing: 0.05em;
}

/* ---- 主导航 ---- */
.main-nav {
  margin-left: auto;
}

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

.nav-list li {
  position: relative;
}

.nav-link {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background-color var(--transition);
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: rgba(7, 94, 91, 0.06);
}

.nav-link.is-current {
  color: var(--color-primary);
  font-weight: 700;
}

.nav-link.is-current::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px;
}

/* ---- 汉堡按钮 ---- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 8px;
  border-radius: var(--radius-sm);
}

.toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

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

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

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

/* ---- 页脚 ---- */
.site-footer {
  background-color: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  margin-top: 0;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px 24px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.footer-col h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

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

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  transition: color var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-bottom p + p {
  margin-top: 4px;
}

/* ---- 主体区域 ---- */
.site-main {
  min-height: 60vh;
}

/* ---- 公告横幅 ---- */
.announcement-bar {
  background-color: var(--color-accent);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 48px;
  position: relative;
  font-size: 14px;
}

.announcement-text {
  text-align: center;
}

.announcement-close {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: rgba(26, 26, 26, 0.6);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
}

.announcement-close:hover {
  background-color: rgba(26, 26, 26, 0.1);
  color: var(--color-text);
}

/* ---- 面包屑 ---- */
.breadcrumb {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 20px 24px 0;
  font-size: 13px;
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

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

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

.breadcrumb-current {
  color: var(--color-text-light);
}

/* ---- 内页标题区 ---- */
.page-header {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 24px 24px 8px;
}

.page-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
}

.page-title-area {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 24px;
}

.page-lead {
  font-size: 16px;
  color: var(--color-text-light);
  max-width: 720px;
}

.page-title-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 24px;
}

.page-intro {
  font-size: 16px;
  color: var(--color-text-light);
  max-width: 720px;
}

.page-title-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 24px;
}

/* ---- 通用容器 ---- */
.inner-main {
  padding-bottom: 64px;
}

/* ============================================================
   3. Components / 通用组件
   ============================================================ */

/* ---- 按钮 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition), color var(--transition), box-shadow var(--transition);
  min-height: 44px;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

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

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

.section-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-top: 8px;
  max-width: 640px;
}

/* ---- 卡片链接 ---- */
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  transition: color var(--transition), gap var(--transition);
}

.card-link::after {
  content: "→";
  transition: transform var(--transition);
}

.card-link:hover {
  color: var(--color-accent-dark);
  gap: 6px;
}

/* ---- 标签 ---- */
.tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-primary);
  background-color: rgba(7, 94, 91, 0.08);
  border-radius: 999px;
  line-height: 1.6;
}

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

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.related-links-item {
  font-size: 14px;
  color: var(--color-primary);
  padding: 6px 14px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: border-color var(--transition), color var(--transition);
}

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

/* ---- CTA 横幅 ---- */
.cta-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.cta-banner {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.cta-desc,
.cta-text {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
}

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

.cta-banner .btn-primary:hover {
  background-color: var(--color-accent);
  color: var(--color-text);
}

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

.cta-banner .btn-secondary {
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--color-white);
}

.cta-banner .btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.12);
}

.cta-content {
  flex: 1;
  min-width: 260px;
}

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

/* ---- Hero 区域 ---- */
.hero-section {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.hero-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px 24px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero-title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 560px;
}

.hero-checklist {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 28px;
}

.checklist-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.checklist-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.checklist-item {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  color: var(--color-text);
}

.checklist-item::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: 700;
}

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

.hero-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.hero-figure img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

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

/* ---- 服务目录区 ---- */
.services-section,
.scenarios-section,
.results-preview-section,
.flow-preview-section,
.faq-preview-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px 24px;
}

.services-section {
  padding-top: 72px;
}

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

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  font-size: 24px;
  background-color: rgba(7, 94, 91, 0.08);
  color: var(--color-primary);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.service-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.service-desc {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.7;
}

/* ---- 业务场景区 ---- */
.scenarios-section {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

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

.scenario-item {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}

.scenario-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.scenario-desc {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.7;
}

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

/* ---- 成果案例预览 ---- */
.results-scroll {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.result-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.result-figure {
  overflow: hidden;
}

.result-figure img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.result-card:hover .result-figure img {
  transform: scale(1.05);
}

.result-name {
  font-size: 17px;
  font-weight: 700;
  padding: 16px 20px 6px;
}

.result-desc {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 0 20px 14px;
  line-height: 1.7;
}

.result-card .card-link {
  margin: 0 20px 20px;
}

/* ---- 合作流程时间线 ---- */
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.flow-step {
  position: relative;
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.flow-step::before {
  content: "";
  position: absolute;
  top: 36px;
  right: -24px;
  width: 24px;
  height: 2px;
  background-color: var(--color-border);
}

.flow-step:last-child::before {
  display: none;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
  background-color: var(--color-primary);
  border-radius: 50%;
  margin-bottom: 14px;
}

.step-name {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 12px;
  line-height: 1.7;
}

.step-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

.step-link:hover {
  color: var(--color-accent-dark);
}

/* ---- FAQ 预览 ---- */
.faq-preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.faq-preview-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow var(--transition);
}

.faq-preview-card:hover {
  box-shadow: var(--shadow-md);
}

.faq-question {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.faq-desc {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.7;
}

/* ============================================================
   5. Pages / 服务项目（cggw/service.html）
   ============================================================ */
.page-service {
  background-color: var(--color-bg);
}

/* ---- 服务项目矩阵 ---- */
.service-matrix-section,
.scenario-section,
.cooperation-mode-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 0;
}

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

.service-card-media {
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

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

.service-card-body {
  padding: 24px;
}

.service-card-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.service-card-text {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.7;
}

.service-card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

.service-card-link:hover {
  color: var(--color-accent-dark);
}

/* ---- 适用业务场景 ---- */
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

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

.scenario-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

/* ---- 合作方式说明 ---- */
.mode-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.mode-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
}

.mode-title {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 12px;
}

.mode-desc {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.7;
}

.mode-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

.mode-link:hover {
  color: var(--color-accent-dark);
}

/* ============================================================
   6. Pages / 成果案例（cggw/results.html）
   ============================================================ */
.page-results {
  background-color: var(--color-bg);
}

/* ---- 案例列表布局 ---- */
.results-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.case-list .section-title,
.case-map .section-title,
.boundary-section .section-title {
  margin-bottom: 24px;
}

.case-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 20px;
}

.case-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.case-item-title {
  font-size: 17px;
  font-weight: 700;
}

.case-tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-primary);
  background-color: rgba(7, 94, 91, 0.08);
  border-radius: 999px;
}

.case-item-desc {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 8px;
  line-height: 1.7;
}

.case-item-boundary {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
  padding-top: 8px;
  border-top: 1px dashed var(--color-border);
}

/* ---- 示意图区 ---- */
.case-map {
  position: sticky;
  top: 96px;
}

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

.map-bg {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

.map-node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 6px 14px 6px 8px;
  box-shadow: var(--shadow-sm);
}

.node-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-accent);
  flex-shrink: 0;
}

.node-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

.node-1 {
  top: 12%;
  left: 8%;
}

.node-2 {
  top: 30%;
  right: 10%;
}

.node-3 {
  bottom: 32%;
  left: 14%;
}

.node-4 {
  bottom: 10%;
  right: 18%;
}

.map-caption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-light);
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

/* ---- 成果边界说明 ---- */
.boundary-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px 24px 0;
}

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

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

.boundary-col-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.boundary-col p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ---- 相关页面入口 ---- */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  display: block;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: box-shadow var(--transition), border-color var(--transition);
}

.related-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.related-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-text);
}

.related-desc {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ============================================================
   7. Pages / 合作流程（cggw/flow.html）
   ============================================================ */
.page-flow {
  background-color: var(--color-bg);
}

/* ---- 纵向时间线 ---- */
.flow-steps-section,
.flow-image-section,
.material-list-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 0;
}

.flow-steps-list {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

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

.step-number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-white);
  background-color: var(--color-primary);
  border-radius: 50%;
}

.step-title {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 14px;
}

.step-detail {
  margin-bottom: 10px;
}

.step-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.step-text {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ---- 流程图 ---- */
.flow-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

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

.flow-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-light);
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

/* ---- 材料清单 ---- */
.material-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

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

.material-name {
  display: block;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.material-use {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ============================================================
   8. Pages / 团队介绍（cggw/team.html）
   ============================================================ */
.page-team {
  background-color: var(--color-bg);
}

/* ---- 团队角色卡片 ---- */
.team-roles-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 0;
}

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

.role-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.role-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.role-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  font-size: 24px;
  background-color: rgba(7, 94, 91, 0.08);
  color: var(--color-primary);
  border-radius: 50%;
  margin-bottom: 16px;
}

.role-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}

.role-focus {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent-dark);
  margin-bottom: 10px;
}

.role-duty {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 10px;
}

.role-link {
  font-size: 14px;
}

.role-link a {
  color: var(--color-primary);
  font-weight: 600;
}

.role-link a:hover {
  color: var(--color-accent-dark);
}

/* ---- 协作方式 ---- */
.collaboration-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px 24px 0;
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.team-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.team-image {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.team-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-light);
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

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

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

.collab-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.collab-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ---- 对接机制 ---- */
.contact-mechanism-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px 24px 0;
}

.mechanism-inner {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
}

.mechanism-inner .section-title {
  color: var(--color-white);
}

.mechanism-text {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 12px;
  max-width: 720px;
}

.mechanism-cta {
  margin-top: 24px;
}

.cta-button {
  display: inline-block;
  padding: 12px 32px;
  background-color: var(--color-white);
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: background-color var(--transition), color var(--transition);
  min-height: 44px;
}

.cta-button:hover {
  background-color: var(--color-accent);
  color: var(--color-text);
}

/* ============================================================
   9. Pages / 常见问题（cggw/faq.html）
   ============================================================ */
.page-faq {
  background-color: var(--color-bg);
}

/* ---- FAQ 折叠 ---- */
.faq-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px 0;
}

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

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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

.faq-question {
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  position: relative;
  padding-right: 48px;
  list-style: none;
  transition: color var(--transition);
}

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

.faq-question::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 400;
  color: var(--color-primary);
  transition: transform var(--transition);
}

.faq-item[open] .faq-question {
  color: var(--color-primary);
}

.faq-item[open] .faq-question::after {
  transform: translateY(-50%) rotate(45deg);
}

.faq-answer {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ---- 补充说明区 ---- */
.faq-supplement {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 0;
}

.supplement-content {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.supplement-text p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-top: 12px;
  line-height: 1.8;
}

.supplement-links {
  display: flex;
  gap: 16px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 8px 18px;
  border: 1px solid var(--color-primary);
  border-radius: 999px;
  transition: background-color var(--transition), color var(--transition);
}

.link-arrow::after {
  content: "→";
}

.link-arrow:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.supplement-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

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

/* ============================================================
   10. Pages / 合作联系（cggw/contact.html）
   ============================================================ */
.page-contact {
  background-color: var(--color-bg);
}

/* ---- 联系介绍 ---- */
.contact-intro-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 24px 0;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.contact-intro-content p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-top: 12px;
  line-height: 1.8;
}

.contact-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.contact-hero-image {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.contact-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-text-light);
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

/* ---- 对接方式卡片 ---- */
.contact-cards-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 0;
}

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

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

.contact-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.contact-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.contact-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.contact-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 8px;
}

.text-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
}

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

/* ---- 准备材料 ---- */
.prepare-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 0;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.prepare-header .section-title {
  margin-bottom: 12px;
}

.prepare-header p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

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

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

.prepare-item-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.prepare-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ---- 反馈说明 ---- */
.feedback-section {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 0;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}

.feedback-content p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-top: 12px;
  line-height: 1.8;
}

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

.aside-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--color-primary);
}

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

.aside-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.aside-links a::before {
  content: "›";
  font-size: 18px;
  color: var(--color-accent-dark);
}

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

/* ============================================================
   11. Pages / 404（404.html）
   ============================================================ */
.site-error {
  background-color: var(--color-bg);
}

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 64px 24px;
}

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

.error-title {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 16px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 28px;
  line-height: 1.8;
}

.error-link {
  display: inline-block;
  padding: 12px 32px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition);
  min-height: 44px;
}

.error-link:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
}

/* ============================================================
   12. Responsive / 响应式断点
   ============================================================ */

/* ---- 平板（768-1023px） ---- */
@media (max-width: 1023px) {
  .hero-container {
    gap: 32px;
    padding: 48px 24px;
  }

  .hero-title {
    font-size: 34px;
  }

  .hero-figure img {
    height: 300px;
  }

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

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

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

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

  .flow-step::before {
    display: none;
  }

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

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

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

  .results-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .case-map {
    position: static;
  }

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

  .prepare-section,
  .feedback-section {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .supplement-content {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .cta-banner {
    padding: 36px;
  }
}

/* ---- 手机（<768px） ---- */
@media (max-width: 767px) {
  .header-inner {
    min-height: 60px;
    padding: 0 16px;
  }

  .brand-name {
    font-size: 20px;
  }

  .brand-slogan {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: static;
    margin-left: 0;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    align-items: stretch;
    padding: 8px 0;
    z-index: 99;
  }

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

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

  .nav-link {
    padding: 14px 24px;
    border-radius: 0;
    font-size: 16px;
  }

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

  .nav-link.is-current {
    background-color: rgba(7, 94, 91, 0.06);
  }

  .announcement-bar {
    padding: 8px 40px;
    font-size: 13px;
  }

  .announcement-close {
    right: 8px;
  }

  .breadcrumb {
    padding: 16px 16px 0;
  }

  .page-header {
    padding: 20px 16px 8px;
  }

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

  .page-title-area,
  .page-title-block,
  .page-title-section {
    padding: 0 16px 20px;
  }

  .page-lead,
  .page-intro {
    font-size: 15px;
  }

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

  /* ---- 首页 Hero ---- */
  .hero-container {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 16px;
  }

  .hero-title {
    font-size: 28px;
  }

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

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

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

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

  /* ---- 首页各分区 ---- */
  .services-section,
  .scenarios-section,
  .results-preview-section,
  .flow-preview-section,
  .faq-preview-section {
    padding: 48px 16px;
  }

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

  .scenarios-grid,
  .scenario-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

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

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

  .section-title {
    font-size: 21px;
  }

  /* ---- 内页模块 ---- */
  .service-matrix-section,
  .scenario-section,
  .cooperation-mode-section,
  .flow-steps-section,
  .flow-image-section,
  .material-list-section,
  .team-roles-section,
  .faq-section,
  .faq-supplement,
  .contact-intro-section,
  .contact-cards-section,
  .prepare-section,
  .feedback-section,
  .boundary-section {
    padding: 40px 16px 0;
  }

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

  .service-card-media img {
    height: 180px;
  }

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

  .results-layout {
    padding: 24px 16px 0;
    gap: 24px;
  }

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

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

  .flow-step-item {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 20px;
  }

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

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

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

  .collaboration-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 16px 0;
  }

  .team-image {
    height: 220px;
  }

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

  .mechanism-inner {
    padding: 28px 20px;
  }

  .faq-question {
    font-size: 15px;
    padding: 16px 44px 16px 16px;
  }

  .faq-answer {
    padding: 0 16px 16px;
  }

  .supplement-content {
    grid-template-columns: 1fr;
    padding: 24px 20px;
  }

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

  .contact-hero-image {
    height: 200px;
  }

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

  .prepare-list {
    gap: 12px;
  }

  .feedback-aside {
    padding: 20px;
  }

  /* ---- CTA ---- */
  .cta-banner {
    padding: 28px 20px;
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-actions {
    width: 100%;
    flex-direction: column;
  }

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

  /* ---- 页脚 ---- */
  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 24px;
    padding: 40px 16px 32px;
  }

  .footer-bottom {
    padding: 16px;
  }

  /* ---- 相关链接 ---- */
  .related-links {
    margin: 32px 16px 0;
    padding: 20px 0;
    gap: 12px;
  }

  /* ---- 404 ---- */
  .error-title {
    font-size: 56px;
  }
}

/* ---- 小屏手机（<400px） ---- */
@media (max-width: 399px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }
}