/* ==========================================================================
   吃瓜中心 · 整站样式
   视觉方向：活动日程风 / 瓜叶绿 × 瓜瓤黄 / 米白背景 / 细线分隔
   ========================================================================== */

/* ==========================================================================
   Base
   ========================================================================== */

:root {
  --color-primary: #2F5D43;
  --color-primary-dark: #234732;
  --color-primary-light: #E4EBE6;
  --color-accent: #F2B134;
  --color-accent-light: #FBEBC8;
  --color-bg: #FAF7F0;
  --color-text: #1F2933;
  --color-text-light: #5A6B5F;
  --color-border: #E4EBE6;
  --color-white: #FFFFFF;
  --font-sans: -apple-system, 'Segoe UI', 'Microsoft YaHei', sans-serif;
  --container-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-sm: 0 1px 3px rgba(31, 41, 51, 0.06);
  --shadow-md: 0 4px 12px rgba(31, 41, 51, 0.08);
  --shadow-hover: 0 8px 24px rgba(31, 41, 51, 0.12);
  --transition-base: 0.2s ease;
  --header-height: 72px;
}

* {
  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;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-text);
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  margin: 0;
}

/* ==========================================================================
   Layout 骨架
   ========================================================================== */

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

.site-main.home-main {
  overflow: visible;
}

.inner-main {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px 64px;
}

/* 内页标题区 */
.page-header {
  padding: 40px 0 8px;
}

.page-header .page-title {
  font-size: 32px;
  color: var(--color-text);
  margin: 0;
}

.page-title {
  padding: 8px 0 24px;
}

.page-title p {
  color: var(--color-text-light);
  font-size: 16px;
  max-width: 720px;
  line-height: 1.8;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 14px;
  color: var(--color-text-light);
}

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

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

.breadcrumb-sep {
  color: #A8B5AB;
}

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

/* ==========================================================================
   Header / 导航
   ========================================================================== */

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

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

.site-brand {
  flex-shrink: 0;
}

.site-brand a {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.site-brand a::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-accent);
  display: inline-block;
  flex-shrink: 0;
}

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

.main-nav ul li a {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), color var(--transition-base);
}

.main-nav ul li a:hover {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
}

.main-nav ul li a.is-current {
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  font-weight: 600;
}

.nav-contact {
  flex-shrink: 0;
}

.nav-contact a {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-white);
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base);
}

.nav-contact a:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
}

/* 移动端汉堡菜单（DOM 中无 .nav-toggle，隐藏该规则避免无效代码） */

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background-color: var(--color-primary-light);
  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 1.2fr;
  gap: 40px;
}

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

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

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

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links ul li a {
  font-size: 14px;
  color: var(--color-text-light);
}

.footer-links ul li a:hover {
  color: var(--color-primary);
}

.footer-scope p:last-child {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 16px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--color-text-light);
}

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

/* 按钮 */
.btn-primary {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  background-color: var(--color-primary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-white);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.btn-secondary:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  transform: translateY(-1px);
}

.btn-back,
.btn-contact {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

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

.btn-back:hover {
  background-color: var(--color-primary-light);
}

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

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

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

.faq-item summary {
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
  transition: background-color var(--transition-base);
}

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

.faq-item summary::after {
  content: "+";
  font-size: 22px;
  font-weight: 400;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

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

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

.faq-item p {
  padding: 0 24px 18px;
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* 步骤条 */
.step-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.step-item,
.contact-step {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.step-item:hover,
.contact-step:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 14px;
  font-variant-numeric: tabular-nums;
}

.step-item h3,
.contact-step h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

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

/* 相关链接导航 */
.related-links {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

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

.related-links-item {
  display: inline-block;
  padding: 6px 16px;
  font-size: 14px;
  color: var(--color-primary);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: border-color var(--transition-base), background-color var(--transition-base);
}

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

/* ==========================================================================
   Pages · 首页
   ========================================================================== */

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

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

.season-tag {
  display: flex;
  align-items: center;
}

.date-pill {
  display: inline-block;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-accent-light);
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  font-variant-numeric: tabular-nums;
}

.hero-copy h1 {
  font-size: 36px;
  line-height: 1.3;
  color: var(--color-text);
}

.hero-copy > p:not(.season-tag) {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.hero-media {
  position: relative;
}

.hero-media img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.status-capsule {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 8px 16px;
  font-size: 13px;
  color: var(--color-primary);
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
}

.status-capsule::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
  flex-shrink: 0;
}

/* 供应节点标尺 */
.supply-nodes {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px;
}

.supply-nodes > h2 {
  margin-bottom: 8px;
}

.supply-nodes > p {
  color: var(--color-text-light);
  margin-bottom: 32px;
  max-width: 640px;
}

.node-list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.node-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  position: relative;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.node-date {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

.node-item h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.node-item p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* 集团概览与品牌目录入口 */
.intro-and-brands {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: stretch;
}

.intro-teaser,
.brand-teaser {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
}

.intro-teaser h2,
.brand-teaser h2 {
  font-size: 22px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

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

.intro-teaser a {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 15px;
}

.intro-teaser a::after {
  content: "→";
  transition: transform var(--transition-base);
}

.intro-teaser a:hover::after {
  transform: translateX(4px);
}

.brand-teaser {
  gap: 16px;
}

.brand-card {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

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

.brand-card img {
  width: 100px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.brand-card h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.brand-card p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 6px;
}

.brand-card a {
  font-size: 13px;
  font-weight: 600;
}

/* 业务版图 */
.coverage-zone {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px;
}

.coverage-zone > h2 {
  margin-bottom: 8px;
}

.coverage-zone > p {
  color: var(--color-text-light);
  margin-bottom: 32px;
  max-width: 640px;
}

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

.zone-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.zone-card h3 {
  font-size: 17px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}

.zone-card h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 32px;
  height: 2px;
  background-color: var(--color-accent);
}

.zone-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.zone-card a {
  font-size: 14px;
  font-weight: 600;
}

/* 公开动态索引 */
.news-index {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px;
}

.news-index > h2 {
  margin-bottom: 8px;
}

.news-index > p {
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.news-timeline {
  position: relative;
  padding-left: 24px;
}

.news-timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background-color: var(--color-border);
}

.news-item {
  position: relative;
  padding: 16px 0 16px 24px;
}

.news-item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 24px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-accent);
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.news-date {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.news-item h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.news-item h3 a {
  color: var(--color-text);
}

.news-item h3 a:hover {
  color: var(--color-primary);
}

.news-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  max-width: 640px;
}

/* FAQ 区 */
.faq {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px;
}

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

/* 合作流程预览 */
.contact-preview {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 64px;
}

.contact-preview > h2 {
  margin-bottom: 24px;
}

.contact-preview .step-list {
  margin-bottom: 32px;
}

.contact-action {
  text-align: center;
}

/* ==========================================================================
   Pages · 集团概览 about
   ========================================================================== */

.layout-shell {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}

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

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

.about-intro h2 {
  font-size: 22px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.about-intro .lead {
  font-size: 17px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-intro p:not(.lead) {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 12px;
}

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

.principle-section h2 {
  font-size: 22px;
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.principle-section > p {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

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

.principle-list li {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: border-color var(--transition-base);
}

.principle-list li:hover {
  border-color: var(--color-primary);
}

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

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

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

.relation-section h2 {
  font-size: 22px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.relation-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: stretch;
}

.relation-media img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

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

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

.relation-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
  color: var(--color-primary);
}

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

.audience-section {
  margin-bottom: 24px;
}

.audience-section h2 {
  font-size: 22px;
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.audience-section > p {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

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

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

.scene-block h3 {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--color-primary);
}

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

/* 侧栏 */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: calc(var(--header-height) + 24px);
}

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

.sidebar-card h2 {
  font-size: 17px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-entry {
  margin-bottom: 16px;
}

.sidebar-entry:last-child {
  margin-bottom: 0;
}

.sidebar-entry h3 {
  font-size: 15px;
  margin-bottom: 4px;
}

.sidebar-entry h3 a {
  color: var(--color-text);
}

.sidebar-entry h3 a:hover {
  color: var(--color-primary);
}

.sidebar-entry p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ==========================================================================
   Pages · 品牌目录 brands
   ========================================================================== */

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

.catalog-intro h2 {
  font-size: 22px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.catalog-intro p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 12px;
  max-width: 760px;
}

.cards-grid {
  margin-bottom: 48px;
}

.cards-grid > h2 {
  font-size: 22px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

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

.catalog-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.card-media {
  width: 100%;
  height: 180px;
  overflow: hidden;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

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

.catalog-card h3 {
  font-size: 17px;
  padding: 20px 20px 0;
  margin-bottom: 8px;
}

.catalog-card > p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  padding: 0 20px;
  margin-bottom: 16px;
}

.catalog-card dl {
  padding: 0 20px;
  margin-bottom: 16px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  font-size: 13px;
}

.catalog-card dl dt {
  color: var(--color-primary);
  font-weight: 600;
}

.catalog-card dl dd {
  color: var(--color-text-light);
}

.catalog-card > a {
  margin: auto 20px 20px;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.catalog-card > a::after {
  content: "→";
  transition: transform var(--transition-base);
}

.catalog-card > a:hover::after {
  transform: translateX(4px);
}

/* 适用对象与协作方式 */
.audience-zone {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 48px;
}

.audience-list,
.cooperation-list {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}

.audience-list h2,
.cooperation-list h2 {
  font-size: 19px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

.audience-list p,
.cooperation-list p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* 分类索引 */
.category-index {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  margin-bottom: 8px;
}

.category-index h2 {
  font-size: 19px;
  margin-bottom: 8px;
}

.category-index > p {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.category-index ul {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.category-index ul li a {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  border-radius: 999px;
  transition: background-color var(--transition-base);
}

.category-index ul li a:hover {
  background-color: var(--color-accent-light);
}

/* ==========================================================================
   Pages · 业务版图 coverage
   ========================================================================== */

.map-node {
  margin-bottom: 48px;
}

.map-node h2,
.detail-zone h2,
.relation-steps h2,
.related-links h2 {
  font-size: 22px;
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.map-node > p,
.detail-zone > p,
.relation-steps > p,
.related-links > p {
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.map-flow {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 32px 0;
}

.map-item {
  flex: 1;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.node-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-accent-light);
  border: 1px solid var(--color-accent);
  font-size: 20px;
  margin-bottom: 12px;
}

.node-icon::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.map-item p {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}

.map-arrow {
  width: 48px;
  height: 2px;
  background-color: var(--color-primary);
  position: relative;
  flex-shrink: 0;
}

.map-arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: -4px;
  border-left: 8px solid var(--color-primary);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
}

/* 环节详解 */
.detail-zone {
  margin-bottom: 48px;
}

.zone-detail {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 32px;
  align-items: center;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
}

.zone-media {
  width: 100%;
  height: 220px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.zone-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.zone-content h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--color-primary);
}

.zone-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 8px;
}

/* 衔接说明 */
.relation-steps {
  margin-bottom: 48px;
}

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

.relation-list li {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.relation-list .step-num {
  flex-shrink: 0;
  margin-bottom: 0;
}

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

.relation-list li strong {
  color: var(--color-text);
  font-weight: 600;
}

/* 相关入口 */
.related-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 8px;
}

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

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

.related-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--color-primary);
}

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

/* ==========================================================================
   Pages · 公开动态 news
   ========================================================================== */

.timeline {
  margin-bottom: 48px;
}

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

.section-heading h2 {
  font-size: 22px;
  margin-bottom: 8px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.section-heading p {
  color: var(--color-text-light);
}

.timeline-list {
  position: relative;
  padding-left: 32px;
}

.timeline-list::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 24px;
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -32px;
  top: 32px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-accent);
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-marker {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
}

.status-dot::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
  flex-shrink: 0;
}

.timeline-label {
  font-size: 13px;
  color: var(--color-text-light);
  font-variant-numeric: tabular-nums;
}

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

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

.timeline-content a {
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.timeline-content a::after {
  content: "→";
  transition: transform var(--transition-base);
}

.timeline-content a:hover::after {
  transform: translateX(4px);
}

/* 更新机制 */
.update-mechanism {
  margin-bottom: 48px;
}

.update-axis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

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

.update-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-primary-light);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

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

.update-figure {
  margin-top: 24px;
}

.update-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.update-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
  padding: 12px 0 0;
}

/* 延伸阅读 */
.related-reads {
  margin-bottom: 24px;
}

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

.related-list li {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: border-color var(--transition-base);
}

.related-list li:hover {
  border-color: var(--color-primary);
}

.related-list li a {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  display: inline-block;
  margin-bottom: 4px;
}

.related-list li a:hover {
  color: var(--color-primary);
}

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

/* ==========================================================================
   Pages · 联系渠道 contact
   ========================================================================== */

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

.contact-steps h2,
.checklist-zone h2,
.faq > h2,
.related-links h2 {
  font-size: 22px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
}

.checklist-zone {
  margin-bottom: 48px;
}

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

.enterprise-check,
.individual-check {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}

.enterprise-check h3,
.individual-check h3 {
  font-size: 18px;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.enterprise-check ul,
.individual-check ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.enterprise-check ul li,
.individual-check ul li {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
}

.enterprise-check ul li::before,
.individual-check ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background-color: var(--color-accent);
}

.check-figure {
  margin-bottom: 16px;
}

.check-figure img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-md);
}

/* 相关卡片 */
.related-links .related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.related-links .related-card {
  display: block;
}

/* ==========================================================================
   Pages · 404
   ========================================================================== */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  min-height: 60vh;
}

.error-zone {
  text-align: center;
  max-width: 560px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}

.error-zone h1 {
  font-size: 28px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 32px;
}

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

/* ==========================================================================
   Responsive
   ========================================================================== */

/* 1080px 断点 */
@media (max-width: 1080px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

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

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

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

  .layout-shell {
    grid-template-columns: 1fr 260px;
    gap: 32px;
  }

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

  .relation-media img {
    height: 240px;
    min-height: 0;
  }

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

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

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

  .map-flow {
    flex-direction: column;
    gap: 0;
  }

  .map-item {
    width: 100%;
  }

  .map-arrow {
    width: 2px;
    height: 32px;
    margin: 0 auto;
  }

  .map-arrow::after {
    top: auto;
    bottom: -1px;
    right: -4px;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 8px solid var(--color-primary);
    border-bottom: 0;
  }

  .zone-detail {
    grid-template-columns: 1fr;
  }

  .zone-media {
    height: 200px;
  }

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

  .update-axis {
    grid-template-columns: 1fr;
  }

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

/* 768px 断点 */
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 12px 16px;
    gap: 12px;
  }

  .site-brand {
    width: 100%;
  }

  .main-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
  }

  .main-nav ul {
    justify-content: flex-start;
    gap: 0;
  }

  .main-nav ul li a {
    padding: 8px 12px;
    font-size: 14px;
    white-space: nowrap;
  }

  .nav-contact {
    position: absolute;
    right: 16px;
    top: 12px;
  }

  .hero {
    padding: 40px 16px 32px;
  }

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

  .intro-and-brands {
    grid-template-columns: 1fr;
    padding: 32px 16px;
  }

  .supply-nodes,
  .coverage-zone,
  .news-index,
  .faq,
  .contact-preview {
    padding: 32px 16px;
  }

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

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

  .brand-card {
    grid-template-columns: 80px 1fr;
  }

  .brand-card img {
    width: 80px;
    height: 64px;
  }

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

  .sidebar {
    position: static;
  }

  .audience-scene {
    grid-template-columns: 1fr;
  }

  .audience-zone {
    grid-template-columns: 1fr;
  }

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

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

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

  .footer-scope {
    grid-column: auto;
  }

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

  .page-header {
    padding: 24px 0 8px;
  }

  .page-title p {
    font-size: 15px;
  }

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

  .card-media {
    height: 160px;
  }

  .timeline-list {
    padding-left: 24px;
  }

  .timeline-item {
    padding: 16px;
  }

  .timeline-item::before {
    left: -24px;
  }

  .timeline-list::before {
    left: 6px;
  }

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

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

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

/* 480px 断点 */
@media (max-width: 480px) {
  h1 {
    font-size: 26px;
  }

  h2 {
    font-size: 20px;
  }

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

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

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

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

  .brand-card img {
    width: 100%;
    height: 120px;
  }

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

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    text-align: center;
  }

  .faq-item summary {
    padding: 14px 16px;
    font-size: 15px;
  }

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

  .step-item,
  .contact-step {
    padding: 16px;
  }

  .catalog-card h3 {
    padding: 16px 16px 0;
  }

  .catalog-card > p {
    padding: 0 16px;
  }

  .catalog-card dl {
    padding: 0 16px;
  }

  .catalog-card > a {
    margin: auto 16px 16px;
  }

  .zone-detail {
    padding: 16px;
  }

  .zone-media {
    height: 160px;
  }

  .map-item {
    padding: 16px;
  }

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

  .update-node {
    padding: 16px;
  }

  .enterprise-check,
  .individual-check {
    padding: 20px 16px;
  }

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

  .error-code {
    font-size: 48px;
  }

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

/* 程序验收反馈：修复网格孤项 */
@media (min-width: 769px) {
  .cards-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}