/* ==========================================================
   51吃瓜在线 · 整站样式表
   视觉方向：新粗野风 · 墨绿/橙红 · 粗边框无圆角
   ========================================================== */

/* ==========================================================
   Base —— 变量、重置、全局基础
   ========================================================== */
:root {
  --color-primary: #1B5E20;
  --color-primary-dark: #144318;
  --color-accent: #E65100;
  --color-accent-dark: #C24400;
  --color-bg: #F5F5F2;
  --color-border: #333333;
  --color-text: #1A1A1A;
  --color-white: #FFFFFF;
  --color-muted: #555555;
  --color-light-green: #E8F0E8;
  --color-light-orange: #FDF0E8;
  --font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container-width: 1200px;
  --content-width: 760px;
  --sidebar-width: 320px;
  --header-height-top: 56px;
  --header-height-bottom: 52px;
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --border-w: 2px;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
}

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

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  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-fast);
}

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-text);
}

/* 通用容器 */
.site-header,
.site-main,
.site-footer {
  width: 100%;
}

.site-main {
  flex: 1 0 auto;
}

/* ==========================================================
   Layout —— 页面布局骨架
   ========================================================== */

/* ---------- 页头 ---------- */
.site-header {
  background-color: var(--color-white);
  border-bottom: var(--border-w) solid var(--color-border);
}

.header-top {
  background-color: var(--color-primary);
  border-bottom: 3px solid var(--color-border);
}

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

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  line-height: 1.2;
}

.brand-name {
  font-size: 26px;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: 0.5px;
}

.brand-slogan {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border: 2px solid var(--color-white);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.header-cta:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
}

.header-bottom {
  background-color: var(--color-white);
}

.main-nav {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
  min-height: var(--header-height-bottom);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 2px solid var(--color-border);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 3px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

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

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

/* ---------- 首页主区 ---------- */
.home-main {
  width: 100%;
}

/* ---------- 内页布局：主内容 + 侧栏 ---------- */
.inner-main {
  width: 100%;
}

.page-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 20px 48px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--sidebar-width);
  gap: 32px;
  align-items: start;
}

.main-content {
  min-width: 0;
  max-width: 100%;
}

.sidebar {
  min-width: 0;
}

/* 侧栏在左的布局（备用） */
.sidebar-left .page-layout {
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
}

.sidebar-left .page-layout .main-content {
  order: 2;
}

.sidebar-left .page-layout .sidebar {
  order: 1;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background-color: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  border-top: 3px solid var(--color-border);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 20px 24px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-brand-name {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

.footer-col-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 14px;
}

.footer-links li {
  margin-bottom: 8px;
}

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

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding: 16px 20px;
  text-align: center;
}

.copyright {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 14px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #ddd;
}

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

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

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

.breadcrumb-current {
  color: var(--color-text);
  font-weight: 600;
}

/* ---------- 页面标题区 ---------- */
.page-header {
  margin-bottom: 20px;
}

.page-title {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 8px;
}

.page-title-block {
  margin-bottom: 24px;
}

.page-lead {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.page-description {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-muted);
}

.page-title-desc {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: 16px;
}

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

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 700;
  border: 2px solid var(--color-border);
  cursor: pointer;
  transition: background-color var(--transition-fast),
    color var(--transition-fast), border-color var(--transition-fast);
  text-align: center;
}

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

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

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.btn-ghost {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn-ghost:hover {
  background-color: var(--color-border);
  color: var(--color-white);
}

/* ---------- 区块标题 ---------- */
.section-title {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--color-text);
}

.section-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: 20px;
}

/* ---------- 图片容器 ---------- */
figure {
  margin: 0;
}

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

figcaption {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-muted);
  padding: 8px 4px 0;
  text-align: left;
}

/* ---------- 相关链接导航 ---------- */
.related-links {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 24px 20px 40px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  border-top: 2px solid var(--color-border);
}

.related-links-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  margin-right: 8px;
}

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

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

/* ---------- FAQ 手风琴 ---------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq-item {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  margin-bottom: 12px;
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  transition: background-color var(--transition-fast);
}

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

.faq-question::after {
  content: "+";
  font-size: 22px;
  font-weight: 400;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

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

.faq-question:hover {
  background-color: var(--color-light-green);
}

.faq-answer {
  padding: 0 20px 16px;
  border-top: 1px solid #eee;
}

.faq-answer p {
  padding-top: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
}

/* ---------- 侧栏 ---------- */
.sidebar-block {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  padding: 20px;
  margin-bottom: 20px;
}

.sidebar-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}

.sidebar-block h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}

.sidebar-block h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-primary);
}

.sidebar-links li {
  margin-bottom: 10px;
  padding-left: 14px;
  position: relative;
}

.sidebar-links li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.sidebar-links a {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.5;
}

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

.sidebar-link-item a {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.5;
}

.sidebar-link-item a:hover {
  color: var(--color-accent);
}

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

.sidebar-more {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #eee;
}

.sidebar-more a {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

/* ==========================================================
   Pages —— 首页
   ========================================================== */

/* ---------- Hero 分类目录 ---------- */
.hero {
  background-color: var(--color-white);
  border-bottom: 3px solid var(--color-border);
}

.hero-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px 20px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 40px;
  align-items: start;
}

.hero-catalog {
  min-width: 0;
}

.hero-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: 24px;
  max-width: 640px;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.catalog-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border: 2px solid var(--color-border);
  background-color: var(--color-bg);
  min-height: 120px;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.catalog-card:hover {
  border-color: var(--color-primary);
  background-color: var(--color-light-green);
}

.catalog-card-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-primary);
}

.catalog-card-desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

.hero-side {
  border: 2px solid var(--color-border);
  background-color: var(--color-bg);
  padding: 24px;
}

.hero-side-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.hero-side-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 20px;
}

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

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

.hero-figure {
  margin-top: 20px;
  border: 2px solid var(--color-border);
}

.hero-figure img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.content-media-primary {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px 32px;
}

.content-media-primary img {
  aspect-ratio: 16 / 5;
  object-fit: cover;
  border: 2px solid var(--color-border);
}

/* ---------- 核心能力 ---------- */
.capabilities {
  padding: 48px 0;
}

.section-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.capability-card {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.capability-card:hover {
  border-color: var(--color-primary);
  background-color: var(--color-light-green);
}

.capability-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
}

.capability-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  flex: 1;
}

.capability-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  align-self: flex-start;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}

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

/* ---------- 使用指南步骤 ---------- */
.guide-steps {
  background-color: var(--color-white);
  border-top: 3px solid var(--color-border);
  border-bottom: 3px solid var(--color-border);
  padding: 48px 0;
}

.steps-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.step-item {
  border: 2px solid var(--color-border);
  background-color: var(--color-bg);
  padding: 20px;
  position: relative;
  transition: border-color var(--transition-fast);
}

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

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 12px;
}

.step-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
}

.step-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

.guide-steps .btn-ghost {
  display: inline-flex;
}

/* ---------- 开放资料入口 ---------- */
.data-entry {
  padding: 48px 0;
}

.data-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.data-card {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.data-card:hover {
  border-color: var(--color-primary);
  background-color: var(--color-light-green);
}

.data-card-title {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
}

.data-card-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  flex: 1;
}

.data-card-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  align-self: flex-start;
}

/* ---------- FAQ 精选 ---------- */
.faq-preview {
  background-color: var(--color-white);
  border-top: 3px solid var(--color-border);
  border-bottom: 3px solid var(--color-border);
  padding: 48px 0;
}

.faq-preview .faq-list {
  margin-bottom: 24px;
}

/* ---------- 合作引导横幅 ---------- */
.cooperation-banner {
  padding: 48px 0;
}

.banner-content {
  border: 3px solid var(--color-border);
  background-color: var(--color-light-green);
  padding: 32px;
  text-align: center;
}

.banner-title {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 12px;
}

.banner-text {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-muted);
  max-width: 640px;
  margin: 0 auto 24px;
}

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

/* ==========================================================
   Pages —— 关于我们
   ========================================================== */

.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: start;
  margin-bottom: 32px;
}

.about-figure {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
}

.about-figure img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.about-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
}

.about-section {
  margin-bottom: 32px;
}

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

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

.about-quote {
  border-left: 4px solid var(--color-accent);
  background-color: var(--color-light-orange);
  padding: 16px 20px;
  margin: 16px 0;
}

.about-quote p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  font-style: italic;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.team-card {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  padding: 20px;
  transition: border-color var(--transition-fast);
}

.team-card:hover {
  border-color: var(--color-primary);
}

.team-card-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

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

.about-boundary-list {
  margin-top: 12px;
}

.boundary-item {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
}

.boundary-item::before {
  content: "·";
  position: absolute;
  left: 4px;
  font-size: 20px;
  line-height: 1;
  color: var(--color-accent);
}

.about-cta {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  padding: 24px;
  margin-top: 32px;
}

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

.about-cta-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.cta-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border: 2px solid var(--color-primary);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

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

/* ==========================================================
   Pages —— 服务内容
   ========================================================== */

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

.service-overview h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 16px;
}

.service-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.service-card {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.service-card:hover {
  border-color: var(--color-primary);
  background-color: var(--color-light-green);
}

.service-card h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-primary);
}

.service-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  flex: 1;
}

.service-card a {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  align-self: flex-start;
}

.service-detail {
  margin-bottom: 32px;
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
}

.service-detail-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 24px;
  align-items: start;
}

.service-detail-text {
  padding: 24px;
  min-width: 0;
}

.service-detail-text h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.service-target {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 10px;
}

.service-detail-text p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 10px;
}

.service-detail-media {
  border-left: 2px solid var(--color-border);
  padding: 16px;
  align-self: stretch;
  display: flex;
  flex-direction: column;
}

.service-detail-media img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 2px solid var(--color-border);
}

.deliverable-section {
  margin-top: 40px;
  margin-bottom: 32px;
}

.deliverable-section h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
}

.deliverable-section > p {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 20px;
}

.deliverable-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.deliverable-item {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  padding: 20px;
}

.deliverable-item h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

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

/* 侧栏步骤 */
.sidebar-steps {
  counter-reset: step-counter;
}

.sidebar-steps li {
  counter-increment: step-counter;
  margin-bottom: 10px;
  padding-left: 32px;
  position: relative;
}

.sidebar-steps li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 22px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-steps a {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.5;
}

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

/* ==========================================================
   Pages —— 使用指南
   ========================================================== */

.guide-section {
  margin-bottom: 32px;
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  padding: 24px;
}

.guide-section .section-head {
  margin-bottom: 12px;
}

.guide-section .section-head h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-primary);
}

.guide-section > p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 14px;
}

.check-list {
  margin-top: 12px;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 800;
}

.guide-figure {
  border: 2px solid var(--color-border);
  margin-top: 16px;
}

.guide-figure img {
  aspect-ratio: 16 / 6;
  object-fit: cover;
}

/* ==========================================================
   Pages —— 开放资料
   ========================================================== */

.content-section {
  margin-bottom: 32px;
}

.content-section h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
}

.content-section .section-desc {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.table-wrap {
  overflow-x: auto;
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table thead th {
  background-color: var(--color-primary);
  color: var(--color-white);
  text-align: left;
  padding: 12px 16px;
  font-weight: 700;
  white-space: nowrap;
}

.data-table tbody td {
  padding: 12px 16px;
  border-top: 1px solid #ddd;
  vertical-align: top;
  line-height: 1.6;
}

.data-table tbody tr:nth-child(even) {
  background-color: var(--color-bg);
}

.field-group-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.field-group-card {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  padding: 20px;
}

.field-group-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-primary);
}

.field-list li {
  font-size: 14px;
  line-height: 1.6;
  padding: 6px 0;
  border-bottom: 1px solid #f0f0f0;
  color: var(--color-text);
}

.field-list li:last-child {
  border-bottom: none;
}

.usage-figure {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  margin-bottom: 16px;
}

.usage-figure img {
  aspect-ratio: 16 / 6;
  object-fit: cover;
}

.usage-quote {
  border-left: 4px solid var(--color-accent);
  background-color: var(--color-light-orange);
  padding: 16px 20px;
  margin: 16px 0;
}

.usage-quote p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.update-timeline {
  border-left: 3px solid var(--color-primary);
  padding-left: 20px;
}

.update-timeline li {
  position: relative;
  margin-bottom: 16px;
  padding: 12px 16px;
  background-color: var(--color-white);
  border: 1px solid #ddd;
}

.update-timeline li::before {
  content: "";
  position: absolute;
  left: -27px;
  top: 16px;
  width: 10px;
  height: 10px;
  background-color: var(--color-accent);
  border: 2px solid var(--color-white);
  border-radius: 50%;
}

.version-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-light-green);
  padding: 2px 8px;
  margin-bottom: 6px;
}

.update-timeline li p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
}

.rule-list {
  counter-reset: rule-counter;
}

.rule-list li {
  counter-increment: rule-counter;
  position: relative;
  padding-left: 36px;
  margin-bottom: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
}

.rule-list li::before {
  content: counter(rule-counter);
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-link-more {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #eee;
}

.sidebar-link-more a {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

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

.content-media-inline {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  margin-bottom: 20px;
}

.content-media-inline img {
  aspect-ratio: 16 / 5;
  object-fit: cover;
}

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

.faq-section h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 3px solid var(--color-primary);
}

/* ==========================================================
   Pages —— 合作方式
   ========================================================== */

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

.page-heading-desc {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-muted);
}

.cooperate-steps {
  margin-bottom: 32px;
}

.cooperate-steps h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
}

.cooperate-steps > p {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 20px;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.step-card {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  padding: 20px;
  position: relative;
  transition: border-color var(--transition-fast);
}

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

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 12px;
}

.step-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

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

.cooperate-prepare {
  margin-bottom: 32px;
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  padding: 24px;
}

.cooperate-prepare h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
}

.cooperate-prepare > p {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 20px;
}

.prepare-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.prepare-list li {
  border: 1px solid #ddd;
  padding: 16px;
  background-color: var(--color-bg);
}

.prepare-list h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.prepare-list p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
}

.cooperate-start {
  margin-bottom: 32px;
}

.cooperate-start h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
}

.cooperate-start p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 12px;
}

.cooperate-start a {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
  margin-right: 8px;
}

.cooperate-figure {
  border: 2px solid var(--color-border);
  background-color: var(--color-white);
  margin-top: 16px;
}

.cooperate-figure img {
  aspect-ratio: 16 / 6;
  object-fit: cover;
}

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

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 40px 20px;
}

.error-panel {
  border: 3px solid var(--color-border);
  background-color: var(--color-white);
  padding: 48px 40px;
  text-align: center;
  max-width: 520px;
  width: 100%;
}

.error-code {
  font-size: 72px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
}

.error-panel h1 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
}

.error-description {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: 24px;
}

.error-panel .btn {
  min-width: 160px;
}

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

/* ---------- 1024px ---------- */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

  .service-detail-media {
    border-left: none;
    border-top: 2px solid var(--color-border);
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 24px;
  }
}

/* ---------- 768px ---------- */
@media (max-width: 768px) {
  /* 页头 */
  .header-top-inner {
    padding: 0 16px;
    min-height: 52px;
  }

  .brand-name {
    font-size: 22px;
  }

  .brand-slogan {
    display: none;
  }

  .main-nav {
    padding: 0 16px;
    min-height: 52px;
  }

  /* 移动导航 */
  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background-color: var(--color-white);
    border-top: 2px solid var(--color-border);
    border-bottom: 2px solid var(--color-border);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    z-index: 100;
    padding: 8px 0;
  }

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

  .nav-item {
    width: 100%;
  }

  .nav-link {
    padding: 14px 20px;
    border-bottom: 1px solid #eee;
    border-left: 3px solid transparent;
  }

  .nav-link.is-current {
    border-left-color: var(--color-accent);
    border-bottom-color: #eee;
    background-color: var(--color-light-green);
  }

  /* 内页布局 */
  .page-layout {
    grid-template-columns: 1fr;
    padding: 24px 16px 40px;
  }

  .main-content {
    order: 1;
  }

  .sidebar {
    order: 2;
    margin-top: 8px;
  }

  /* 侧栏在左时移动端也恢复为主内容在前 */
  .sidebar-left .page-layout {
    grid-template-columns: 1fr;
  }

  .sidebar-left .page-layout .main-content {
    order: 1;
  }

  .sidebar-left .page-layout .sidebar {
    order: 2;
  }

  /* 首页 */
  .hero-inner {
    padding: 24px 16px;
  }

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

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

  .capabilities,
  .guide-steps,
  .data-entry,
  .faq-preview,
  .cooperation-banner {
    padding: 32px 0;
  }

  .section-inner {
    padding: 0 16px;
  }

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

  .steps-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

  .banner-content {
    padding: 24px 16px;
  }

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

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

  /* 关于 */
  .about-intro {
    grid-template-columns: 1fr;
  }

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

  /* 服务 */
  .service-cards {
    grid-template-columns: 1fr;
  }

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

  /* 资料 */
  .field-group-grid {
    grid-template-columns: 1fr;
  }

  /* 合作 */
  .steps-grid {
    grid-template-columns: 1fr;
  }

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

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    padding: 32px 16px 20px;
  }

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

/* ---------- 480px ---------- */
@media (max-width: 480px) {
  .header-cta {
    padding: 6px 12px;
    font-size: 13px;
  }

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

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

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

  .content-media-primary img {
    aspect-ratio: 16 / 9;
  }

  .about-cta-links {
    flex-direction: column;
  }

  .cta-link {
    width: 100%;
    justify-content: center;
  }

  .error-panel {
    padding: 32px 20px;
  }

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

  .usage-quote {
    padding: 12px 14px;
    font-size: 13px;
  }

  .data-table {
    font-size: 13px;
  }

  .data-table thead th,
  .data-table tbody td {
    padding: 10px 12px;
  }
}