/* ==========================================================================
   黑料揭秘 · 整站样式表
   站点：u-benefit.cn
   版本：1.1
   ========================================================================== */

/* ==========================================================================
   Base — 基础变量、重置、字体与通用元素
   ========================================================================== */

:root {
  --color-primary: #1B3A5C;
  --color-secondary: #5B7A9E;
  --color-accent: #C8760A;
  --color-bg: #F5F7FA;
  --color-text: #2C3E50;
  --color-white: #FFFFFF;
  --color-border: #D8E0E8;
  --color-light: #EAF0F5;
  --color-footer-bg: #16283C;
  --color-footer-text: #B8C6D4;

  --font-stack: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-number: "SF Mono", "DIN Alternate", "Roboto Mono", Consolas, monospace;

  --container-width: 1200px;
  --container-padding: 24px;
  --radius-small: 4px;
  --radius-medium: 6px;
  --radius-card: 8px;

  --shadow-card: 0 1px 4px rgba(27, 58, 92, 0.08), 0 2px 8px rgba(27, 58, 92, 0.04);
  --shadow-card-hover: 0 4px 12px rgba(27, 58, 92, 0.12), 0 8px 20px rgba(27, 58, 92, 0.08);
  --shadow-header: 0 1px 0 rgba(27, 58, 92, 0.06), 0 2px 6px rgba(27, 58, 92, 0.04);

  --transition-base: 0.2s ease;
  --transition-hover: 0.25s ease;
}

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

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

body {
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-primary);
  line-height: 1.35;
  font-weight: 600;
}

p {
  margin-bottom: 0;
}

figure {
  margin: 0;
}

details summary {
  cursor: pointer;
  list-style: none;
}

details summary::-webkit-details-marker {
  display: none;
}

/* 按钮基础 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  border-radius: var(--radius-medium);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base), box-shadow var(--transition-base);
}

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

.btn-primary:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 10px rgba(200, 118, 10, 0.25);
}

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

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

/* 文本链接 */
.text-link {
  color: var(--color-accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
}

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

/* 卡片链接 */
.card-link {
  display: inline-flex;
  align-items: center;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 14px;
  line-height: 1.5;
}

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

/* 等宽数字 */
.service-num,
.step-num,
.step-number,
.path-number,
.service-index,
.step-block-num,
.usage-step {
  font-family: var(--font-number);
  font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   Layout — 全站统一外壳：页头、主容器、面包屑、页脚
   ========================================================================== */

/* 站点主体 */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

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

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 24px;
}

/* 品牌 */
.brand {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex-shrink: 0;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.brand-slogan {
  font-size: 12px;
  color: var(--color-secondary);
  line-height: 1.4;
}

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

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

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 6px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius-small);
  transition: color var(--transition-base), background-color var(--transition-base);
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: var(--color-light);
}

.nav-link.is-current {
  color: var(--color-primary);
  font-weight: 600;
}

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

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

.nav-toggle:hover {
  background-color: var(--color-light);
}

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

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

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

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

/* 移动抽屉 */
.mobile-nav {
  display: none;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.mobile-nav-list {
  padding: 8px 0 16px;
}

.mobile-nav-list li + li {
  border-top: 1px solid var(--color-light);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 10px 24px;
  font-size: 16px;
  color: var(--color-text);
}

.mobile-nav-link:hover {
  background-color: var(--color-light);
}

.mobile-nav-link.active {
  color: var(--color-accent);
  font-weight: 600;
}

/* 主内容 */
.site-main {
  flex: 1;
}

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

/* 内页主内容 */
.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding) 64px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 0 12px;
  font-size: 14px;
  color: var(--color-secondary);
}

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

.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 {
  padding: 8px 0 16px;
}

.page-title {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 700;
}

/* 页面标题下方描述 */
.page-title,
.page-title-block,
.page-lead,
.page-desc,
.page-title-desc {
  margin-top: 12px;
  font-size: 16px;
  color: var(--color-secondary);
  line-height: 1.7;
}

/* 内页通用区块标题 */
.section-title {
  font-size: 24px;
  line-height: 1.4;
  font-weight: 700;
}

.section-desc {
  font-size: 15px;
  color: var(--color-secondary);
  margin-top: 8px;
  line-height: 1.7;
}

/* 页脚 */
.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-padding) 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr 1fr;
  gap: 40px;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-slogan {
  font-size: 14px;
  color: var(--color-accent);
  margin-bottom: 10px;
  font-weight: 500;
}

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

.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 14px;
}

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

.footer-link {
  font-size: 14px;
  color: var(--color-footer-text);
  display: inline-flex;
  align-items: center;
  min-height: 28px;
}

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

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.copyright {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px var(--container-padding);
  font-size: 13px;
  color: rgba(184, 198, 212, 0.7);
}

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

/* 区块容器 */
.section-block {
  padding: 72px 0;
}

.section-block + .section-block {
  border-top: 1px solid var(--color-border);
}

.section-header {
  max-width: 720px;
  margin-bottom: 36px;
}

.section-more {
  margin-top: 28px;
  text-align: center;
}

/* 相关链接网格 */
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 28px;
}

.related-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  transition: box-shadow var(--transition-hover), transform var(--transition-hover), border-color var(--transition-hover);
}

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

.related-card h3,
.related-card .related-name,
.related-card .related-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
}

.related-card p,
.related-card .related-desc {
  font-size: 14px;
  color: var(--color-secondary);
  line-height: 1.6;
}

/* 页底相关链接条 */
.related-links {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 48px;
  padding: 16px 20px;
  background-color: var(--color-light);
  border-radius: var(--radius-medium);
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  flex-shrink: 0;
}

.related-links-item {
  font-size: 14px;
  color: var(--color-secondary);
}

.related-links-item + .related-links-item::before {
  content: "·";
  margin-right: 16px;
  color: var(--color-border);
}

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

/* FAQ 折叠面板 */
.faq-list {
  max-width: 800px;
}

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

.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.5;
}

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--color-secondary);
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

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

.faq-answer {
  padding: 0 20px 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.5;
}

.faq-question::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--color-secondary);
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

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

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

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

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

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

.hero-title {
  font-size: 36px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

.hero-desc {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

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

.hero-actions .btn-primary:hover {
  background-color: #A86208;
  border-color: #A86208;
}

.hero-actions .btn-outline {
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--color-white);
}

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

.hero-media {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

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

/* 首页服务预览 */
.services-preview .service-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.services-preview .service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: box-shadow var(--transition-hover), transform var(--transition-hover);
}

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

.services-preview .service-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-light);
  color: var(--color-accent);
  font-size: 16px;
  font-weight: 700;
  border-radius: var(--radius-small);
}

.services-preview .service-name {
  font-size: 18px;
  font-weight: 600;
}

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

.services-preview .card-link {
  margin-top: 4px;
}

/* 首页流程预览 */
.process-preview {
  background-color: var(--color-white);
}

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

.process-preview .process-step {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 20px;
  background-color: var(--color-bg);
  border-radius: var(--radius-card);
  border-left: 3px solid var(--color-accent);
}

.process-preview .step-num {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.process-preview .step-name {
  font-size: 17px;
  font-weight: 600;
}

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

/* 首页场景预览 */
.scenarios-preview .scenario-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.scenario-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
}

.scenario-block:nth-child(even) .scenario-media {
  order: -1;
}

.scenario-text {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.scenario-name {
  font-size: 20px;
  font-weight: 600;
}

.scenario-risk {
  font-size: 15px;
  color: var(--color-secondary);
  line-height: 1.7;
}

.scenario-media {
  border-radius: var(--radius-card);
  overflow: hidden;
}

.scenario-media img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

/* 首页专题预览 */
.insights-preview {
  background-color: var(--color-white);
}

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

.insights-preview .insight-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px;
  background-color: var(--color-bg);
  border-radius: var(--radius-card);
  transition: box-shadow var(--transition-hover), transform var(--transition-hover);
}

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

.insights-preview .insight-title {
  font-size: 17px;
  font-weight: 600;
}

.insights-preview .insight-summary {
  font-size: 14px;
  color: var(--color-secondary);
  line-height: 1.6;
  flex: 1;
}

/* 首页边界说明 */
.boundary .boundary-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

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

.boundary-col.include-col {
  border-top: 3px solid var(--color-primary);
}

.boundary-col.exclude-col {
  border-top: 3px solid var(--color-accent);
}

.boundary-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

.boundary-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 15px;
  line-height: 1.6;
}

.boundary-list li::before {
  content: "";
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border-radius: 50%;
  background-color: var(--color-light);
}

.include-col .boundary-list li::before {
  border: 2px solid var(--color-primary);
}

.exclude-col .boundary-list li::before {
  border: 2px solid var(--color-accent);
}

/* 首页 FAQ 预览 */
.faq-preview .faq-list {
  max-width: 800px;
  margin: 0 auto;
}

/* 首页 CTA 横幅 */
.cta {
  background-color: var(--color-primary);
}

.cta-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.cta-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-white);
}

.cta-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 8px;
}

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

.cta .btn-primary:hover {
  background-color: #A86208;
}

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

/* 服务分组 */
.service-groups {
  margin-top: 40px;
}

.service-groups .service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  margin-bottom: 24px;
  overflow: hidden;
}

.service-card-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px 28px 16px;
  border-bottom: 1px solid var(--color-light);
}

.service-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 18px;
  font-weight: 700;
  border-radius: var(--radius-small);
  flex-shrink: 0;
}

.service-name {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 4px;
}

.service-object {
  font-size: 14px;
  color: var(--color-secondary);
  line-height: 1.6;
}

.service-card-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 24px 28px;
}

.service-include,
.service-exclude {
  padding: 20px;
  border-radius: var(--radius-medium);
}

.service-include {
  background-color: var(--color-light);
}

.service-exclude {
  background-color: #FDF3E7;
}

.service-subtitle {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}

.service-include .service-subtitle {
  color: var(--color-primary);
}

.service-exclude .service-subtitle {
  color: var(--color-accent);
}

.service-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 4px 0;
  font-size: 14px;
  line-height: 1.6;
}

.service-list li::before {
  content: "";
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  margin-top: 5px;
  border-radius: 50%;
  background-color: var(--color-light);
}

.service-include .service-list li::before {
  border: 2px solid var(--color-primary);
}

.service-exclude .service-list li::before {
  border: 2px solid var(--color-accent);
}

.service-link {
  display: inline-flex;
  align-items: center;
  margin: 0 28px 24px;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 14px;
}

.service-link:hover {
  color: var(--color-primary);
}

/* 服务对象分组 */
.service-object-groups {
  margin-top: 48px;
}

.object-group-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 28px;
}

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

.object-name {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.object-desc {
  font-size: 15px;
  color: var(--color-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.object-point {
  font-size: 14px;
  color: var(--color-primary);
  line-height: 1.6;
  padding-left: 12px;
  border-left: 2px solid var(--color-accent);
}

/* 交付物 */
.deliverable-section {
  margin-top: 48px;
}

.deliverable-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 28px;
}

.deliverable-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.deliverable-figure {
  border-radius: var(--radius-medium);
  overflow: hidden;
  margin-bottom: 8px;
}

.deliverable-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
}

.deliverable-caption {
  font-size: 13px;
  color: var(--color-secondary);
  padding: 8px 4px 0;
  line-height: 1.5;
}

.deliverable-name {
  font-size: 17px;
  font-weight: 600;
}

.deliverable-form {
  font-size: 14px;
  color: var(--color-secondary);
  line-height: 1.6;
}

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

/* 相关区块 */
.related-section {
  margin-top: 48px;
}

/* ==========================================================================
   Pages — 服务流程页
   ========================================================================== */

/* 流程步骤条 */
.process-steps {
  margin-top: 40px;
}

.steps-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.step-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  border-top: 3px solid var(--color-accent);
  min-width: 0;
}

.step-num {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.step-name {
  font-size: 17px;
  font-weight: 600;
  overflow-wrap: break-word;
}

.step-desc {
  font-size: 14px;
  color: var(--color-secondary);
  line-height: 1.6;
  overflow-wrap: break-word;
  min-width: 0;
}

/* 步骤详情 */
.step-details {
  margin-top: 48px;
}

.step-block {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px;
  margin-bottom: 24px;
}

.step-block-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-light);
}

.step-block-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 700;
  border-radius: var(--radius-small);
  flex-shrink: 0;
}

.step-block-title {
  font-size: 19px;
  font-weight: 600;
}

.step-block-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 20px;
}

.step-col-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.step-col-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 4px 0;
  font-size: 14px;
  line-height: 1.6;
}

.step-col-list li::before {
  content: "";
  flex-shrink: 0;
  width: 6px;
  height: 6px;
  margin-top: 9px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.step-deliverable {
  background-color: var(--color-light);
  padding: 16px 20px;
  border-radius: var(--radius-medium);
}

.step-deliverable-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

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

/* 流程配图 */
.process-figure {
  margin: 40px 0;
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--color-light);
}

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

.figure-caption {
  padding: 12px 20px;
  font-size: 14px;
  color: var(--color-secondary);
  text-align: center;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

/* 准备清单 */
.checklist {
  margin-top: 48px;
}

.checklist-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 28px;
}

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

.checklist-col:first-child {
  border-top: 3px solid var(--color-primary);
}

.checklist-col:last-child {
  border-top: 3px solid var(--color-accent);
}

.checklist-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 16px;
}

.checklist-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  font-size: 15px;
  line-height: 1.6;
}

.checklist-list li::before {
  content: "";
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border-radius: 50%;
  background-color: var(--color-light);
}

.checklist-col:first-child .checklist-list li::before {
  border: 2px solid var(--color-primary);
}

.checklist-col:last-child .checklist-list li::before {
  border: 2px solid var(--color-accent);
}

/* 流程页相关 */
.related {
  margin-top: 48px;
}

/* ==========================================================================
   Pages — 适用场景页
   ========================================================================== */

/* 场景分类标签 */
.scenario-tabs {
  margin-top: 32px;
}

.tabs-scroll {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
  max-width: 100%;
}

.tabs-scroll::-webkit-scrollbar {
  height: 4px;
}

.tabs-scroll::-webkit-scrollbar-thumb {
  background-color: var(--color-border);
  border-radius: 2px;
}

.tab-item,
.tab-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 8px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  flex-shrink: 0;
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

.tab-item:hover,
.tab-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.tab-item.is-active,
.tab-link.is-active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* 场景分组 */
.scenario-groups {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 48px;
}

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

.group-head {
  margin-bottom: 20px;
}

.group-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 6px;
}

.group-desc {
  font-size: 15px;
  color: var(--color-secondary);
  line-height: 1.7;
}

.group-media {
  border-radius: var(--radius-medium);
  overflow: hidden;
  margin-bottom: 24px;
}

.group-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.scenario-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.scenario-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  padding: 24px;
  min-width: 0;
}

.scenario-name {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 12px;
}

.scenario-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  margin-top: 10px;
}

.scenario-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  overflow-wrap: break-word;
}

.scenario-link {
  display: inline-flex;
  align-items: center;
  margin-top: 14px;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 14px;
}

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

/* 使用方式 */
.usage-guide {
  margin-top: 48px;
}

.usage-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 24px;
}

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

.usage-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.usage-step {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.usage-name {
  font-size: 16px;
  font-weight: 600;
}

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

/* ==========================================================================
   Pages — 专题洞察页
   ========================================================================== */

/* 专题标签 */
.insights-tabs {
  margin-top: 32px;
}

/* 专题文章列表 */
.insights-list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.insight-article {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.insight-media {
  overflow: hidden;
}

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

.insight-content {
  padding: 32px 36px;
  min-width: 0;
}

.insight-content h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.insight-lead {
  font-size: 16px;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1.7;
  margin-bottom: 16px;
  padding-left: 12px;
  border-left: 3px solid var(--color-accent);
}

.insight-content p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 12px;
  overflow-wrap: break-word;
}

/* 分析框架 */
.methodology {
  margin-top: 48px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
}

.methodology h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

.methodology-desc {
  font-size: 15px;
  color: var(--color-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

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

.framework-step {
  background-color: var(--color-bg);
  border-radius: var(--radius-medium);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.step-number {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-accent);
}

.framework-step h3 {
  font-size: 16px;
  font-weight: 600;
}

.framework-step p {
  font-size: 14px;
  color: var(--color-secondary);
  line-height: 1.6;
  overflow-wrap: break-word;
}

/* 专题页相关链接 */
.related-links {
  margin-top: 48px;
}

.related-links .related-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
}

/* ==========================================================================
   Pages — 合作指南页
   ========================================================================== */

/* 合作路径 */
.cooperation-path {
  margin-top: 40px;
}

.path-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 28px;
}

.path-item {
  display: flex;
  gap: 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  min-width: 0;
}

.path-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 18px;
  font-weight: 700;
  border-radius: var(--radius-small);
  flex-shrink: 0;
}

.path-content {
  flex: 1;
  min-width: 0;
}

.path-content h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}

.path-why {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: 8px;
  overflow-wrap: break-word;
}

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

.path-figure {
  margin-top: 28px;
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--color-light);
}

.path-image {
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.path-caption {
  padding: 12px 20px;
  font-size: 14px;
  color: var(--color-secondary);
  text-align: center;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
}

/* FAQ 区块 */
.faq-section {
  margin-top: 48px;
}

/* 反馈区块 */
.feedback-section {
  margin-top: 48px;
}

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

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

.feedback-col h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feedback-col p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-secondary);
  margin-bottom: 12px;
}

.reading-order {
  list-style: decimal;
  padding-left: 20px;
}

.reading-order li {
  padding: 4px 0;
  font-size: 15px;
  line-height: 1.6;
}

.reading-order li::marker {
  color: var(--color-accent);
  font-weight: 600;
}

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

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 48px 24px;
}

.error-panel {
  max-width: 600px;
  text-align: center;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 48px 40px;
}

.error-code {
  font-family: var(--font-number);
  font-size: 64px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 12px;
}

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

.error-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.error-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-medium);
  font-size: 14px;
  font-weight: 500;
  transition: background-color var(--transition-base);
}

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

.error-help {
  font-size: 14px;
  color: var(--color-secondary);
  line-height: 1.6;
}

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

/* 中等屏幕：1024px 以下 */
@media (max-width: 1024px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .hero-content {
    gap: 32px;
  }

  .hero-title {
    font-size: 32px;
  }

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

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

/* 小屏幕：768px 以下 */
@media (max-width: 768px) {
  .header-inner {
    min-height: 60px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    display: none;
  }

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

  .mobile-nav {
    display: block;
  }

  .hero {
    padding: 40px 0;
  }

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

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

  .hero-image {
    height: 220px;
  }

  .section-block {
    padding: 48px 0;
  }

  .services-preview .service-cards {
    grid-template-columns: 1fr;
  }

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

  .scenario-block {
    grid-template-columns: 1fr;
    padding: 16px;
  }

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

  .scenario-media img {
    height: 180px;
  }

  .insights-preview .insight-cards {
    grid-template-columns: 1fr;
  }

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

  .cta-title {
    font-size: 22px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 36px 24px 24px;
  }

  /* 服务内容页 */
  .service-card-body {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .service-card-head {
    padding: 20px 20px 14px;
  }

  .service-link {
    margin: 0 20px 20px;
  }

  .object-group-grid {
    grid-template-columns: 1fr;
  }

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

  /* 流程页 */
  .steps-list {
    grid-template-columns: 1fr;
  }

  .step-block {
    padding: 20px;
  }

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

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

  .process-image {
    height: 200px;
  }

  /* 场景页 */
  .scenario-group {
    padding: 20px;
  }

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

  .group-image {
    height: 180px;
  }

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

  /* 专题页 */
  .insight-content {
    padding: 24px 20px;
  }

  .insight-image {
    height: 200px;
  }

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

  /* 合作指南页 */
  .path-item {
    flex-direction: column;
    gap: 12px;
    padding: 20px;
  }

  .path-image {
    height: 180px;
  }

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

  /* 相关网格 */
  .related-grid {
    grid-template-columns: 1fr;
  }

  /* 页底相关链接 */
  .related-links {
    flex-wrap: wrap;
    gap: 8px;
  }

  .related-links-item + .related-links-item::before {
    content: "";
    margin-right: 0;
  }

  /* 404 */
  .error-panel {
    padding: 32px 24px;
  }

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

/* 窄屏：480px 以下 */
@media (max-width: 480px) {
  .header-inner {
    padding: 0 16px;
  }

  .brand-name {
    font-size: 19px;
  }

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

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

  .breadcrumb {
    padding: 16px 0 8px;
    font-size: 13px;
  }

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

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

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

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

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

  .footer-inner {
    padding: 32px 16px 20px;
  }

  .copyright {
    padding: 14px 16px;
    font-size: 12px;
  }

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

/* 滚动淡入动画（增强，不影响初始可见性） */
@media (prefers-reduced-motion: no-preference) {
  .section-block {
    animation: fadeInUp 0.5s ease both;
  }

  @keyframes fadeInUp {
    from {
      opacity: 0;
      transform: translateY(12px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* 程序验收反馈：移动端防溢出 */
@media (max-width: 768px) {
  .site-main,
  .site-main * {
    min-width: 0;
    max-width: 100%;
  }

  .site-main :is(h1, h2, h3, h4, p, a, span) {
    overflow-wrap: anywhere;
  }
}