/* ==========================================================================
   今日吃瓜黑料网 - 整站样式表
   手工艺目录风 · 浅米纸张底色 · 皮革棕主色 · 橄榄绿强调
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Base — 变量、重置、全局基础
   -------------------------------------------------------------------------- */
:root {
  --color-primary: #8c6d4f;
  --color-secondary: #d9c9a8;
  --color-accent: #4e6b58;
  --color-text: #2b2b2b;
  --color-text-light: #5c5c5c;
  --color-bg: #f5f1e8;
  --color-white: #ffffff;
  --color-border: #ddd0b8;
  --color-border-light: #e8dfce;
  --color-bg-soft: #faf7f0;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --container-width: 1200px;
  --content-padding: 24px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --transition: 0.25s ease;
}

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

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul,
ol {
  list-style: none;
}

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

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

h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.35;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

h4 {
  font-size: 16px;
}

p {
  margin-bottom: 12px;
}

/* 锚点滚动偏移 */
[id] {
  scroll-margin-top: 20px;
}

/* --------------------------------------------------------------------------
   2. Layout — 全站骨架：页头、页脚、主容器、面包屑、页面标题区
   -------------------------------------------------------------------------- */

/* 页头 */
.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border-light);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px var(--content-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand a {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

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

.brand-slogan {
  font-size: 12px;
  color: var(--color-text-light);
  letter-spacing: 0.3px;
}

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

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

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

.main-nav ul li a.is-current {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* 移动端导航按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

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

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

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

/* 页脚 */
.site-footer {
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border-light);
  margin-top: 60px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 40px var(--content-padding) 24px;
}

.footer-links {
  margin-bottom: 28px;
}

.footer-links h2 {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 12px;
}

.footer-links ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

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

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

.footer-brand {
  border-top: 1px solid var(--color-border-light);
  padding-top: 20px;
  margin-bottom: 16px;
}

.footer-positioning {
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 6px;
}

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

.footer-copyright {
  border-top: 1px solid var(--color-border-light);
  padding-top: 16px;
}

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

/* 主容器 */
.site-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--content-padding);
}

/* 内页主容器 */
.inner-main {
  padding-top: 24px;
  padding-bottom: 40px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 16px;
  flex-wrap: wrap;
}

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

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

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

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

/* 页面标题区 */
.page-header {
  margin-bottom: 8px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}

.page-title-area {
  background-color: var(--color-bg-soft);
  border-left: 3px solid var(--color-primary);
  padding: 16px 20px;
  margin-bottom: 36px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.page-title-area p,
.page-title-area .page-title-desc,
.page-title-area .page-lead,
.page-title-area .page-intro {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

/* 区块标题通用 */
.section-heading {
  margin-bottom: 28px;
}

.section-heading .section-number,
.section-heading .section-no,
.section-heading .module-number,
.section-heading .module-no {
  display: inline-block;
  font-family: "Courier New", monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-secondary);
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
}

.section-heading h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
}

.section-heading p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   3. Components — 通用组件
   -------------------------------------------------------------------------- */

/* 按钮 */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
  text-align: center;
  min-height: 44px;
  line-height: 1.4;
}

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

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

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

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

/* 表格通用 */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

th,
td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: top;
}

th {
  font-weight: 600;
  background-color: var(--color-bg-soft);
  color: var(--color-text);
}

td {
  color: var(--color-text-light);
}

/* FAQ 手风琴 */
.faq-item {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  margin-bottom: 12px;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
  transition: color var(--transition);
}

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

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

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

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

.faq-item p {
  padding: 0 20px 16px;
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

/* 图片容器 */
figure {
  margin: 0;
}

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

figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
  padding: 8px 0 0;
  line-height: 1.5;
}

/* 相关链接 */
.related-links {
  margin-top: 40px;
  padding: 20px;
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 16px;
}

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

.related-links-item {
  font-size: 14px;
  color: var(--color-primary);
  padding: 4px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
}

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

/* --------------------------------------------------------------------------
   4. Pages — 首页
   -------------------------------------------------------------------------- */

/* 首屏 hero */
.hero-section {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 40px;
  padding: 48px 0 56px;
  align-items: center;
}

.hero-index-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-secondary);
}

.service-index-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.service-index-list li {
  border-bottom: 1px solid var(--color-border-light);
  transition: background-color var(--transition);
}

.service-index-list li:first-child {
  border-top: 1px solid var(--color-border-light);
}

.service-index-list li:hover {
  background-color: var(--color-bg-soft);
}

.service-index-list li a {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 12px;
}

.index-number {
  font-family: "Courier New", monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  flex-shrink: 0;
  line-height: 1.6;
}

.index-name {
  display: block;
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 2px;
}

.index-desc {
  display: block;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
}

.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

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

.hero-positioning {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 0;
}

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

/* 服务概览 */
.service-overview {
  padding: 48px 0;
  border-top: 1px solid var(--color-border-light);
}

.service-table-wrap {
  overflow-x: auto;
}

.service-table {
  min-width: 700px;
}

.service-table td a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
}

.service-table td a:hover {
  color: var(--color-accent);
}

/* 行业问题速览 */
.industry-issues {
  padding: 48px 0;
  border-top: 1px solid var(--color-border-light);
}

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

.issue-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.issue-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 2px 12px rgba(140, 109, 79, 0.08);
}

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

.issue-figure img {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.issue-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.issue-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 8px;
}

.issue-card .issue-service {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 12px;
}

.issue-card a {
  margin-top: auto;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

/* 交付流程简版 */
.delivery-preview {
  padding: 48px 0;
  border-top: 1px solid var(--color-border-light);
}

.delivery-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
  counter-reset: delivery-counter;
}

.delivery-steps li {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
  transition: border-color var(--transition);
}

.delivery-steps li:hover {
  border-color: var(--color-primary);
}

.delivery-steps .step-number {
  display: inline-block;
  font-family: "Courier New", monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  margin-bottom: 12px;
}

.delivery-steps .step-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.delivery-steps .step-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

.delivery-link {
  text-align: center;
}

.delivery-link a {
  display: inline-block;
  padding: 10px 28px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition), color var(--transition);
  min-height: 44px;
  line-height: 1.4;
}

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

/* 质量检查与案例观察 */
.quality-cases {
  padding: 48px 0;
  border-top: 1px solid var(--color-border-light);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.quality-block,
.cases-block {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.quality-block .section-number,
.cases-block .section-number {
  display: inline-block;
  font-family: "Courier New", monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: 2px 10px;
  margin-bottom: 12px;
}

.quality-block h2,
.cases-block h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.quality-block p,
.cases-block p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}

.quality-list {
  margin-bottom: 20px;
}

.quality-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 8px;
}

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

.quality-block a,
.cases-block a {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  padding: 8px 20px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
  min-height: 44px;
  line-height: 1.4;
}

.quality-block a:hover,
.cases-block a:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* FAQ 预览 */
.faq-preview {
  padding: 48px 0;
  border-top: 1px solid var(--color-border-light);
}

.faq-preview .section-heading {
  margin-bottom: 20px;
}

/* --------------------------------------------------------------------------
   5. Pages — 业务范围
   -------------------------------------------------------------------------- */

/* 服务任务分组 */
.service-task-groups {
  margin-bottom: 48px;
}

.task-group-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.task-group-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--transition);
}

.task-group-item:hover {
  border-color: var(--color-primary);
}

.task-group-no {
  font-family: "Courier New", monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  flex-shrink: 0;
  line-height: 1.5;
}

.task-group-content {
  flex: 1;
}

.task-group-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

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

.task-point-list {
  margin-top: 8px;
}

.task-point-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 4px;
}

.task-point-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.service-report-figure {
  margin-top: 24px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
}

.service-report-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.service-report-figure figcaption {
  font-size: 14px;
  color: var(--color-text-light);
  text-align: center;
  padding: 10px;
  background-color: var(--color-bg-soft);
}

/* 包含项与不包含项 */
.service-include-exclude {
  margin-bottom: 48px;
}

.include-exclude-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.include-exclude-item h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-light);
}

.include-exclude-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.include-column,
.exclude-column {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.include-column h4,
.exclude-column h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 10px;
}

.include-column h4 {
  color: var(--color-accent);
}

.exclude-column h4 {
  color: var(--color-primary);
}

.include-column ul li,
.exclude-column ul li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 4px;
}

.include-column ul li::before,
.exclude-column ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.include-column ul li::before {
  background-color: var(--color-accent);
}

.exclude-column ul li::before {
  background-color: var(--color-primary);
}

/* 服务选择建议 */
.service-selection-guide {
  margin-bottom: 40px;
}

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

.selection-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.selection-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.selection-item p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 12px;
  flex: 1;
}

.selection-item a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

/* --------------------------------------------------------------------------
   6. Pages — 行业场景
   -------------------------------------------------------------------------- */

.scenario-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-bottom: 48px;
}

.scenario-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 6fr 6fr;
  gap: 0;
}

.scenario-card:nth-child(even) .scenario-media {
  order: 2;
}

.scenario-media {
  background-color: var(--color-bg-soft);
}

.scenario-media figure {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.scenario-media figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.scenario-media figcaption {
  padding: 10px;
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
  background-color: var(--color-bg-soft);
}

.scenario-content {
  padding: 28px;
}

.scenario-content h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}

.scenario-block {
  margin-bottom: 16px;
}

.scenario-block h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.scenario-block p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

.scenario-link {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border-light);
}

.scenario-link a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

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

/* 场景选择指引 */
.scenario-guide {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 40px;
}

.scenario-guide h2 {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.scenario-guide > p {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 20px;
}

.guide-table-wrapper {
  overflow-x: auto;
}

.guide-table {
  min-width: 600px;
}

.guide-note {
  font-size: 14px;
  color: var(--color-text-light);
  margin-top: 16px;
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   7. Pages — 交付流程
   -------------------------------------------------------------------------- */

.delivery-timeline {
  margin-bottom: 48px;
}

.timeline-stage {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 16px;
  position: relative;
}

.timeline-stage::before {
  content: "";
  position: absolute;
  left: 44px;
  top: 0;
  bottom: -16px;
  width: 1px;
  background-color: var(--color-border-light);
}

.timeline-stage:last-child::before {
  display: none;
}

.stage-number {
  font-family: "Courier New", monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  flex-shrink: 0;
  line-height: 1.5;
  z-index: 1;
}

.stage-content {
  flex: 1;
}

.stage-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

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

.stage-col {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
}

.stage-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.stage-col ul li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 4px;
}

.stage-col ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.delivery-figure {
  margin-top: 24px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
}

.delivery-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.delivery-figure figcaption {
  font-size: 14px;
  color: var(--color-text-light);
  text-align: center;
  padding: 10px;
  background-color: var(--color-bg-soft);
}

/* 质量检查标准 */
.quality-standard {
  margin-bottom: 48px;
}

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

.quality-standard .quality-list li {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 20px;
  position: relative;
  padding-left: 20px;
}

.quality-standard .quality-list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 24px;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.quality-standard .quality-list h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.quality-standard .quality-list p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

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

.related-list li a {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
  min-height: 44px;
  line-height: 1.4;
}

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

/* --------------------------------------------------------------------------
   8. Pages — 案例观察
   -------------------------------------------------------------------------- */

.analysis-method-section,
.observation-dimension-section,
.analysis-framework-section,
.observation-notes-section {
  margin-bottom: 48px;
}

.method-content {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 32px;
  align-items: start;
}

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

.method-list {
  margin-top: 16px;
}

.method-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 8px;
}

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

.method-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
}

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

.method-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
  padding: 8px;
  background-color: var(--color-bg-soft);
}

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

.dimension-table-wrap {
  overflow-x: auto;
}

.dimension-table {
  min-width: 640px;
}

/* 分析框架 */
.framework-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

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

.step-no {
  display: inline-block;
  font-family: "Courier New", monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: 2px 10px;
  margin-bottom: 12px;
}

.framework-step h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.framework-step p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

.framework-cta {
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 24px;
}

.framework-cta p {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 16px;
}

.framework-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.framework-links a {
  display: inline-block;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition), color var(--transition);
  min-height: 44px;
  line-height: 1.4;
}

.framework-links a:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* 观察笔记 */
.notes-content {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 32px;
  align-items: start;
}

.notes-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
}

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

.notes-figure figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
  padding: 8px;
  background-color: var(--color-bg-soft);
}

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

/* --------------------------------------------------------------------------
   9. Pages — 联系
   -------------------------------------------------------------------------- */

.cooperation-flow-section,
.service-boundary-section,
.faq-section,
.feedback-section {
  margin-bottom: 48px;
}

.cooperation-layout {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 32px;
  align-items: start;
}

.cooperation-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cooperation-step {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: border-color var(--transition);
}

.cooperation-step:hover {
  border-color: var(--color-primary);
}

.cooperation-step .step-number {
  font-family: "Courier New", monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  flex-shrink: 0;
  line-height: 1.5;
}

.cooperation-step h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.cooperation-step p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

.cooperation-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
}

.cooperation-media img {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.cooperation-media figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
  padding: 8px;
  background-color: var(--color-bg-soft);
}

/* 服务边界 */
.boundary-group-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.boundary-group h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-light);
}

.boundary-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.boundary-include,
.boundary-exclude {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-sm);
  padding: 16px;
}

.boundary-include h4,
.boundary-exclude h4 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 10px;
}

.boundary-include h4 {
  color: var(--color-accent);
}

.boundary-exclude h4 {
  color: var(--color-primary);
}

.boundary-include ul li,
.boundary-exclude ul li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 4px;
}

.boundary-include ul li::before,
.boundary-exclude ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.boundary-include ul li::before {
  background-color: var(--color-accent);
}

.boundary-exclude ul li::before {
  background-color: var(--color-primary);
}

/* FAQ */
.faq-section .faq-list {
  max-width: 800px;
}

/* 反馈说明 */
.feedback-content {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 24px;
}

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

.feedback-content p:last-child {
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   10. Pages — 404
   -------------------------------------------------------------------------- */

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

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

.error-code {
  font-family: "Courier New", monospace;
  font-size: 72px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
}

.error-content h1 {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

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

.btn-back {
  display: inline-block;
  padding: 10px 28px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-white);
  background-color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-md);
  transition: background-color var(--transition), border-color var(--transition);
  min-height: 44px;
  line-height: 1.4;
}

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

/* --------------------------------------------------------------------------
   11. Responsive — 响应式
   -------------------------------------------------------------------------- */

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

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

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

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

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

  .scenario-card:nth-child(even) .scenario-media {
    order: 0;
  }

  .method-content {
    grid-template-columns: 1fr;
  }

  .notes-content {
    grid-template-columns: 1fr;
  }

  .cooperation-layout {
    grid-template-columns: 1fr;
  }
}

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

  .brand-name {
    font-size: 18px;
  }

  .brand-slogan {
    font-size: 11px;
  }

  .nav-toggle {
    display: flex;
    order: 3;
  }

  .main-nav {
    order: 4;
    width: 100%;
    flex-basis: 100%;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    display: none;
    padding-top: 8px;
    border-top: 1px solid var(--color-border-light);
  }

  .main-nav ul.is-open {
    display: flex;
  }

  .main-nav ul li a {
    padding: 12px 8px;
    border-radius: 0;
    border-bottom: 1px solid var(--color-border-light);
  }

  .main-nav ul li a.is-current {
    background-color: var(--color-bg);
    color: var(--color-primary);
  }

  .site-main {
    padding: 0 16px;
  }

  .inner-main {
    padding-top: 16px;
  }

  .page-header h1 {
    font-size: 24px;
  }

  .page-title-area {
    padding: 12px 16px;
    margin-bottom: 24px;
  }

  .page-title-area p {
    font-size: 14px;
  }

  .hero-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px 0 32px;
  }

  .hero-visual {
    order: 1;
  }

  .hero-index {
    order: 2;
  }

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

  .hero-positioning {
    font-size: 16px;
  }

  .service-overview,
  .industry-issues,
  .delivery-preview,
  .quality-cases,
  .faq-preview {
    padding: 32px 0;
  }

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

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

  .delivery-steps {
    grid-template-columns: 1fr;
  }

  .quality-cases {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .selection-scenarios {
    grid-template-columns: 1fr;
  }

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

  .timeline-stage {
    flex-direction: column;
    gap: 16px;
    padding: 16px;
  }

  .timeline-stage::before {
    display: none;
  }

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

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

  .scenario-content {
    padding: 20px;
  }

  .scenario-media figure img {
    height: 200px;
  }

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

  .hero-cta a {
    text-align: center;
  }

  .footer-inner {
    padding: 28px 16px 20px;
  }

  .footer-links ul {
    flex-direction: column;
    gap: 4px;
  }

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

  .error-content h1 {
    font-size: 20px;
  }
}

/* 小屏手机 */
@media (max-width: 480px) {
  .brand-slogan {
    display: none;
  }

  .header-inner {
    padding: 10px 12px;
  }

  .site-main {
    padding: 0 12px;
  }

  .hero-index-title {
    font-size: 18px;
  }

  .service-table {
    min-width: 560px;
  }

  .delivery-link a,
  .btn-primary,
  .btn-secondary {
    width: 100%;
  }

  .quality-block a,
  .cases-block a {
    width: 100%;
    text-align: center;
  }
}