/* =========================================================
   吃瓜网最新 · 整站样式表
   版本: 1.0
   说明: 覆盖首页、内页、404 页全部真实 DOM 结构
   ========================================================= */

/* =========================================================
   01 · Base — 变量、重置、全局基础
   ========================================================= */
:root {
  --color-primary: #0A2540;
  --color-primary-light: #163A5F;
  --color-bg: #FFFFFF;
  --color-bg-gray: #F4F6F8;
  --color-accent: #E8B400;
  --color-accent-dark: #C99E00;
  --color-text: #333333;
  --color-text-secondary: #6B7280;
  --color-border: #DCE1E6;
  --color-white: #FFFFFF;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-width: 1200px;
  --container-padding: 0 32px;
  --header-height: 72px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --focus-outline: 3px dashed var(--color-accent);
  --transition-base: all 0.2s 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: 1rem;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
figure {
  max-width: 100%;
  height: auto;
}

img {
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: var(--transition-base);
}

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

ul,
ol {
  list-style: none;
}

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

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 3px;
}

/* 跳转正文链接 — 键盘用户可见，平时移出视口但保留可访问性 */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 9999;
  padding: 10px 20px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
  color: var(--color-white);
  background-color: var(--color-primary);
  outline: var(--focus-outline);
  outline-offset: -3px;
}

/* =========================================================
   02 · Layout — 页头、页脚、主容器、面包屑
   ========================================================= */

/* ---- 页头 ---- */
.site-header {
  background-color: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(10, 37, 64, 0.15);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-decoration: none;
  line-height: 1.2;
  flex-shrink: 0;
}

.brand:hover {
  opacity: 0.88;
}

.brand-name {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.02em;
}

.brand-tagline {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.72);
  margin-top: 2px;
  letter-spacing: 0.01em;
}

/* ---- 主导航 ---- */
.main-nav {
  display: flex;
  align-items: center;
}

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

.nav-menu li {
  list-style: none;
}

.nav-menu a {
  display: inline-block;
  padding: 8px 14px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.nav-menu a:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

.nav-menu a.is-current {
  color: var(--color-white);
  background-color: rgba(232, 180, 0, 0.24);
  font-weight: 600;
}

/* 汉堡按钮 — 桌面隐藏 */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
  align-items: center;
  justify-content: center;
}

.nav-toggle-line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ---- 主内容容器 ---- */
.site-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 32px 64px;
  min-height: 60vh;
}

.home-main {
  padding: 0;
  max-width: none;
}

/* ---- 面包屑 ---- */
.breadcrumb {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 20px 32px 0;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
}

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

.breadcrumb-sep {
  margin: 0 8px;
  color: var(--color-border);
}

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

/* about 页的特殊面包屑容器 */
.breadcrumb-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 20px 32px 0;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ---- 页脚 ---- */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.82);
  margin-top: 0;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px 32px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}

.footer-col h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col li {
  list-style: none;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.9rem;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: rgba(255, 255, 255, 0.3);
}

.footer-col a:hover {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent);
}

.copyright {
  grid-column: 1 / -1;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.48);
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

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

/* ---- 按钮 ---- */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  min-height: 44px;
  line-height: 1.4;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-primary);
  border: 2px solid var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(232, 180, 0, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(10, 37, 64, 0.2);
}

/* ---- 区块头 ---- */
.section-head {
  margin-bottom: 32px;
}

.section-kicker {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
  background-color: rgba(232, 180, 0, 0.12);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
}

.section-head h2 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  line-height: 1.3;
}

.section-head p {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 720px;
  line-height: 1.75;
}

/* ---- 折叠 FAQ ---- */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.faq-item:hover {
  border-color: var(--color-primary-light);
}

.faq-item summary {
  padding: 18px 48px 18px 20px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  position: relative;
  list-style: none;
  line-height: 1.5;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-primary);
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
}

.faq-item p {
  padding: 0 20px 20px;
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.75;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  margin: 0;
}

/* ---- 尾链导航 ---- */
.related-links {
  margin-top: 48px;
  padding: 20px 24px;
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  border-left: 4px solid var(--color-accent);
}

.related-links-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-right: 4px;
}

.related-links-item {
  font-size: 0.875rem;
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.related-links-item:hover {
  background-color: rgba(232, 180, 0, 0.15);
  color: var(--color-primary);
}

/* ---- 响应式图片容器 ---- */
.content-figure,
.media-figure,
.process-figure,
.intro-figure,
.intro-media,
.faq-media,
.hero-media {
  margin: 0;
  overflow: hidden;
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-lg);
}

.content-figure img,
.media-figure img,
.process-figure img,
.intro-figure img,
.intro-media img,
.faq-media img,
.hero-media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* =========================================================
   04 · 首页模块
   ========================================================= */

/* ---- Hero 首屏 ---- */
.hero {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 72px 0 64px;
}

.hero-content {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.25;
  margin-bottom: 20px;
  max-width: 580px;
}

.hero-lead {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 16px;
  line-height: 1.5;
}

.hero-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.75;
  margin-bottom: 28px;
  max-width: 520px;
}

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

.hero-actions .btn-primary {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary);
}

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

.hero-actions .btn-secondary {
  border-color: var(--color-white);
  color: var(--color-white);
}

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

.hero-media {
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.hero-media img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  max-height: 420px;
}

/* ---- 服务范围标签 ---- */
.scope {
  padding: 72px 0;
  background-color: var(--color-bg);
}

.scope .section-head {
  max-width: var(--container-width);
  margin: 0 auto 36px;
  padding: 0 32px;
}

.tag-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.tag-card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  background-color: var(--color-bg-gray);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.15s ease;
  min-height: 44px;
}

.tag-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 16px rgba(10, 37, 64, 0.08);
  transform: translateY(-2px);
  text-decoration: none;
}

.tag-name {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.tag-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ---- 流程预览 ---- */
.process-preview {
  padding: 72px 0;
  background-color: var(--color-bg-gray);
}

.process-preview .section-head {
  max-width: var(--container-width);
  margin: 0 auto 40px;
  padding: 0 32px;
}

.timeline {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.timeline-item {
  position: relative;
  padding: 28px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  border-top: 3px solid var(--color-accent);
}

.timeline-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-accent);
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 14px;
}

.timeline-item h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.timeline-time {
  font-size: 0.8125rem;
  color: var(--color-accent-dark);
  font-weight: 500;
  margin-bottom: 10px;
}

.timeline-item p:last-child {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.section-link {
  max-width: var(--container-width);
  margin: 36px auto 0;
  padding: 0 32px;
  text-align: center;
}

.section-link a {
  display: inline-block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease;
}

.section-link a:hover {
  background-color: rgba(232, 180, 0, 0.15);
}

/* ---- 服务概览 ---- */
.services-overview {
  padding: 72px 0;
  background-color: var(--color-bg);
}

.services-overview .section-head {
  max-width: var(--container-width);
  margin: 0 auto 32px;
  padding: 0 32px;
}

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

.content-figure img {
  width: 100%;
  height: auto;
  max-height: 360px;
  border-radius: var(--radius-lg);
}

.overview-intro {
  max-width: var(--container-width);
  margin: 0 auto 40px;
  padding: 0 32px;
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.75;
}

.service-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.service-list li {
  padding: 20px 24px;
  background-color: var(--color-bg-gray);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.service-list h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.service-list p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ---- 解决方案场景 ---- */
.scenarios {
  padding: 72px 0;
  background-color: var(--color-bg-gray);
}

.scenarios .section-head {
  max-width: var(--container-width);
  margin: 0 auto 36px;
  padding: 0 32px;
}

.scenario-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.scenario-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.scenario-item:hover {
  border-color: var(--color-primary-light);
  box-shadow: 0 4px 16px rgba(10, 37, 64, 0.08);
}

.scenario-item h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.scenario-problem {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 12px;
}

.scenario-direction {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.65;
  padding-left: 14px;
  border-left: 3px solid var(--color-accent);
}

/* ---- FAQ 预览 ---- */
.faq-preview {
  padding: 72px 0;
  background-color: var(--color-bg);
}

.faq-preview .section-head {
  max-width: var(--container-width);
  margin: 0 auto 32px;
  padding: 0 32px;
}

.faq-preview .faq-item {
  max-width: var(--container-width);
  margin: 0 auto 12px;
}

.faq-preview .section-link {
  max-width: var(--container-width);
  margin: 32px auto 0;
  padding: 0 32px;
}

/* ---- CTA 区块 ---- */
.cta-section {
  background-color: var(--color-primary);
  padding: 72px 0;
}

.cta-content {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 32px;
  text-align: center;
}

.cta-content .section-kicker {
  background-color: rgba(232, 180, 0, 0.2);
  color: var(--color-accent);
}

.cta-content h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-content p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.78);
  max-width: 640px;
  margin: 0 auto 32px;
  line-height: 1.75;
}

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

.cta-actions .btn-primary {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary);
}

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

.cta-actions .btn-secondary {
  border-color: var(--color-white);
  color: var(--color-white);
}

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

/* =========================================================
   05 · 内页通用骨架
   ========================================================= */

.inner-main {
  padding: 40px 32px 64px;
}

.page-header {
  margin-bottom: 28px;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  max-width: 720px;
}

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

.page-intro {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: 760px;
}

/* =========================================================
   06 · 服务能力页 (services.html)
   ========================================================= */

.media-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 48px;
}

.media-text p {
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: 16px;
}

.media-figure img {
  max-height: 320px;
}

.media-figure figcaption {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  padding: 12px 4px 0;
  line-height: 1.5;
}

/* 服务标签 */
.service-tags {
  margin-bottom: 48px;
  padding: 32px;
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
}

.service-tags h2 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.service-tags p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  line-height: 1.65;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.tag-list li {
  list-style: none;
}

.tag-list a {
  display: inline-block;
  padding: 8px 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.2s ease;
}

.tag-list a:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-primary);
}

/* 服务分组 */
.service-group {
  margin-bottom: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.service-group h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.group-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  margin-bottom: 24px;
}

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

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

.service-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: 0 4px 12px rgba(10, 37, 64, 0.08);
}

.service-card h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.service-target {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  margin-bottom: 8px;
}

.service-detail {
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.65;
  margin-bottom: 12px;
}

.service-delivery {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  padding-left: 12px;
  border-left: 3px solid var(--color-border);
}

/* 引导入口 */
.guide-links {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-top: 48px;
}

.guide-links h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.guide-links p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  line-height: 1.65;
}

.guide-link-list {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.guide-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease, transform 0.15s ease;
}

.guide-link:hover {
  background-color: var(--color-primary-light);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* =========================================================
   07 · 解决方案页 (solutions.html)
   ========================================================= */

.intro-content {
  font-size: 1rem;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: 32px;
  max-width: 760px;
}

.intro-media {
  margin-bottom: 48px;
}

.intro-media img {
  max-height: 320px;
}

/* 场景列表 */
.scenario-list .scenario-item {
  margin-bottom: 32px;
  padding: 32px;
}

.scenario-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-accent);
}

.scenario-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 14px;
  background-color: var(--color-accent);
  color: var(--color-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  flex-shrink: 0;
}

.scenario-header h2 {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.4;
}

.scenario-block {
  margin-bottom: 20px;
  padding-left: 16px;
  border-left: 3px solid var(--color-border);
}

.scenario-block h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.scenario-block p {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.7;
}

/* 相关链接 aside */
.related-links {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-top: 48px;
  border-left: 4px solid var(--color-accent);
}

.related-links h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
}

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

.related-card {
  display: block;
  padding: 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.related-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(10, 37, 64, 0.08);
  text-decoration: none;
}

.related-title {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.related-desc {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* =========================================================
   08 · 实施流程页 (process.html)
   ========================================================= */

.process-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 48px;
}

.process-intro-text p {
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: 16px;
}

.process-figure img {
  max-height: 300px;
}

.process-figure figcaption {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  padding: 12px 4px 0;
  line-height: 1.5;
}

/* 阶段时间轴 */
.phases-section {
  margin-bottom: 48px;
}

.phases-section > h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 32px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--color-accent);
  display: inline-block;
}

.phases-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.phase-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  background-color: var(--color-bg-gray);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: border-color 0.2s ease;
}

.phase-item:hover {
  border-color: var(--color-primary-light);
}

.phase-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.phase-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-accent);
  color: var(--color-primary);
  font-size: 1.125rem;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 12px;
}

.phase-meta h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.4;
}

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

.phase-duration {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  margin-bottom: 12px;
}

.phase-body p {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 16px;
}

.phase-body h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
  margin-top: 12px;
}

.phase-body ul {
  margin-bottom: 12px;
}

.phase-body ul li {
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.65;
  padding-left: 18px;
  position: relative;
  margin-bottom: 4px;
}

.phase-body ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-accent-dark);
}

/* 启动说明 */
.notice-section {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-top: 48px;
  border-left: 4px solid var(--color-accent);
}

.notice-section h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.notice-section p {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 12px;
}

.notice-section a {
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  margin-right: 12px;
}

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

/* 相关链接列表 */
.related-links ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.related-links ul li {
  list-style: none;
}

.related-links ul a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

/* =========================================================
   09 · 常见问题页 (faq.html)
   ========================================================= */

.faq-intro-media {
  margin-bottom: 40px;
}

.faq-media img {
  max-height: 280px;
}

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

.faq-group-title {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

/* 相关链接 */
.related-link-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.related-link-list li {
  list-style: none;
}

.related-link-list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: background-color 0.2s ease;
}

.related-link-list a:hover {
  background-color: rgba(232, 180, 0, 0.15);
}

/* =========================================================
   10 · 机构介绍页 (about.html)
   ========================================================= */

.intro-section {
  margin-bottom: 56px;
}

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

.lead {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1.6;
  max-width: 720px;
}

.intro-figure {
  margin-bottom: 28px;
}

.intro-figure img {
  max-height: 320px;
}

.intro-copy p {
  font-size: 0.9375rem;
  color: var(--color-text);
  line-height: 1.75;
  margin-bottom: 16px;
  max-width: 760px;
}

/* 服务原则 */
.values-section {
  margin-bottom: 56px;
}

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

.section-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--color-accent);
  display: inline-block;
}

.section-header p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
  max-width: 640px;
}

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

.value-item {
  background-color: var(--color-bg-gray);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.value-item:hover {
  border-color: var(--color-accent);
  box-shadow: 0 4px 12px rgba(10, 37, 64, 0.08);
}

.value-item h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
  padding-left: 14px;
  border-left: 4px solid var(--color-accent);
}

.value-item p {
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.7;
}

/* 边界说明 */
.closure-section {
  background-color: var(--color-bg-gray);
  border-radius: var(--radius-md);
  padding: 36px;
  margin-top: 48px;
  border-left: 4px solid var(--color-accent);
}

.closure-content p {
  font-size: 0.9rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 12px;
  max-width: 720px;
}

.closure-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.text-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

/* =========================================================
   11 · 404 页面
   ========================================================= */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height) - 200px);
  padding: 48px 32px;
}

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

.error-code {
  font-size: 5rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.1;
  margin-bottom: 16px;
}

.error-content h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.error-desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.error-btn {
  display: inline-block;
  padding: 12px 28px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background-color 0.2s ease, transform 0.15s ease;
  min-height: 44px;
}

.error-btn:hover {
  background-color: var(--color-primary-light);
  color: var(--color-white);
  transform: translateY(-2px);
}

/* =========================================================
   12 · Responsive — 响应式断点
   ========================================================= */

/* ---- 1024px 断点 ---- */
@media (max-width: 1024px) {
  .header-inner {
    padding: 0 24px;
  }

  .site-main {
    padding: 40px 24px 56px;
  }

  .inner-main {
    padding: 32px 24px 56px;
  }

  .breadcrumb {
    padding: 16px 24px 0;
  }

  .breadcrumb-inner {
    padding: 16px 24px 0;
  }

  .footer-inner {
    padding: 48px 24px 36px;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .hero-content {
    padding: 0 24px;
    gap: 40px;
  }

  .hero h1 {
    font-size: 2.125rem;
  }

  .scope .section-head,
  .process-preview .section-head,
  .services-overview .section-head,
  .scenarios .section-head,
  .faq-preview .section-head {
    padding: 0 24px;
  }

  .tag-grid,
  .timeline,
  .content-figure,
  .overview-intro,
  .service-list,
  .scenario-list,
  .cta-content,
  .faq-preview .faq-item,
  .faq-preview .section-link {
    padding-left: 24px;
    padding-right: 24px;
  }

  .timeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .page-title {
    font-size: 1.75rem;
  }
}

/* ---- 768px 断点 ---- */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .header-inner {
    padding: 0 16px;
    min-height: var(--header-height);
  }

  .brand-name {
    font-size: 1.125rem;
  }

  .brand-tagline {
    font-size: 0.6875rem;
  }

  /* 汉堡菜单 */
  .nav-toggle {
    display: flex;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    gap: 5px;
  }

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

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

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

  .nav-menu {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-primary);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 16px;
    box-shadow: 0 8px 24px rgba(10, 37, 64, 0.25);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
  }

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

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

  .nav-menu a {
    display: block;
    padding: 14px 12px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-menu a.is-current {
    background-color: rgba(232, 180, 0, 0.2);
  }

  /* 主内容 */
  .site-main {
    padding: 32px 16px 48px;
  }

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

  .breadcrumb {
    padding: 12px 16px 0;
    font-size: 0.8125rem;
  }

  .breadcrumb-inner {
    padding: 12px 16px 0;
    font-size: 0.8125rem;
  }

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

  .copyright {
    grid-column: 1 / -1;
    margin-top: 16px;
    padding-top: 16px;
  }

  /* Hero */
  .hero {
    padding: 48px 0 40px;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 16px;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero-lead {
    font-size: 1.0625rem;
  }

  .hero-media img {
    max-height: 280px;
    min-height: 200px;
  }

  /* 首页模块 */
  .scope,
  .process-preview,
  .services-overview,
  .scenarios,
  .faq-preview,
  .cta-section {
    padding: 48px 0;
  }

  .scope .section-head,
  .process-preview .section-head,
  .services-overview .section-head,
  .scenarios .section-head,
  .faq-preview .section-head {
    padding: 0 16px;
    margin-bottom: 24px;
  }

  .tag-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 0 16px;
  }

  .tag-card {
    padding: 16px;
  }

  .timeline {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 0 16px;
  }

  .content-figure {
    padding: 0 16px;
    margin-bottom: 24px;
  }

  .overview-intro {
    padding: 0 16px;
    margin-bottom: 24px;
  }

  .service-list {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 0 16px;
  }

  .scenario-list {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 0 16px;
  }

  .cta-content {
    padding: 0 16px;
  }

  .cta-content h2 {
    font-size: 1.5rem;
  }

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

  .faq-preview .section-link {
    padding: 0 16px;
  }

  .section-head h2 {
    font-size: 1.375rem;
  }

  /* 内页 */
  .page-title {
    font-size: 1.5rem;
  }

  .media-block,
  .process-intro {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .service-tags {
    padding: 24px;
  }

  .guide-links {
    padding: 24px;
  }

  .related-links {
    padding: 24px;
  }

  .related-group {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .scenario-list .scenario-item {
    padding: 24px;
  }

  .scenario-header {
    flex-direction: column;
    gap: 8px;
  }

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

  .phase-meta {
    flex-direction: row;
    align-items: center;
    gap: 12px;
  }

  .phase-number {
    margin-bottom: 0;
  }

  .notice-section {
    padding: 24px;
  }

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

  .closure-section {
    padding: 24px;
  }

  .closure-links {
    flex-direction: column;
    gap: 12px;
  }

  .error-code {
    font-size: 3.5rem;
  }

  .error-content h1 {
    font-size: 1.375rem;
  }
}

/* ---- 480px 断点 ---- */
@media (max-width: 480px) {
  .brand-tagline {
    display: none;
  }

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

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

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

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

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

  .guide-link-list {
    flex-direction: column;
    align-items: stretch;
  }

  .guide-link {
    justify-content: center;
    text-align: center;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .copyright {
    grid-column: 1;
  }

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

  .phase-item {
    padding: 16px;
  }

  .service-tags {
    padding: 20px;
  }

  .tag-list a {
    padding: 8px 14px;
    font-size: 0.8125rem;
  }
}

/* ---- 减少动态效果偏好 ---- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}