/* ============================================================
   黑料专区 · 全站样式表
   站点：cbep.org.cn
   说明：本样式表覆盖整站全部页面与组件，遵循统一视觉规范。
   ============================================================ */

/* ============================================================
   1. BASE — 基础重置、字体、颜色、通用元素
   ============================================================ */
:root {
  --color-primary: #0F2A43;
  --color-accent: #2EC4B6;
  --color-accent-dark: #1FA396;
  --color-bg: #F5F7FA;
  --color-text: #1F2933;
  --color-text-light: #5B6B7B;
  --color-border: #D9E2EC;
  --color-white: #FFFFFF;
  --color-bg-soft: #EDF1F5;
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-family-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --container-width: 1200px;
  --sidebar-width: 240px;
  --content-width: 960px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --transition-base: 0.2s ease-in-out;
  --shadow-card: 0 1px 3px rgba(15, 42, 67, 0.06), 0 4px 12px rgba(15, 42, 67, 0.04);
  --shadow-card-hover: 0 2px 6px rgba(15, 42, 67, 0.08), 0 8px 20px rgba(15, 42, 67, 0.06);
}

* {
  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-family-base);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

h1 {
  font-size: 36px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 1em;
}

/* 等宽数字用于日期、时间、编号等 */
.timeline-date,
.timeline-marker,
.error-code,
.meta-label,
.breadcrumb-current,
.breadcrumb-sep {
  font-family: var(--font-family-mono);
  font-feature-settings: "tnum" 1;
}

/* ============================================================
   2. LAYOUT — 全站布局骨架、容器、侧栏系统
   ============================================================ */

/* 全站统一容器宽度 */
.header-inner,
.footer-inner,
.layout-shell,
.page-layout,
.breadcrumb-inner {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
  width: 100%;
}

/* 布局壳：侧栏 + 主内容，侧栏在左 */
.layout-shell.sidebar-left,
.page-layout.sidebar-left {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  padding-top: 32px;
  padding-bottom: 56px;
  flex: 1;
}

/* 侧栏在 DOM 中位于 main 之前时，保证侧栏在左 */
.layout-shell.sidebar-left > aside.cat-nav,
.page-layout.sidebar-left > aside.cat-nav {
  grid-column: 1;
  position: sticky;
  top: 24px;
}

.layout-shell.sidebar-left > main.site-main,
.page-layout.sidebar-left > main.site-main {
  grid-column: 2;
  min-width: 0;
}

/* 侧栏在 DOM 中位于 main 之后时，用 order 调整顺序 */
.layout-shell.sidebar-left > main.site-main ~ aside.cat-nav,
.page-layout.sidebar-left > main.site-main ~ aside.cat-nav {
  grid-column: 1;
  grid-row: 1;
}

.layout-shell.sidebar-left > main.site-main ~ aside.cat-nav ~ main,
.page-layout.sidebar-left > main.site-main ~ aside.cat-nav ~ main {
  grid-column: 2;
  grid-row: 1;
}

/* 侧栏在后、main 在前的情况 */
.layout-shell.sidebar-left > main.site-main:first-of-type,
.page-layout.sidebar-left > main.site-main:first-of-type {
  grid-column: 2;
  grid-row: 1;
}

.layout-shell.sidebar-left > main.site-main:first-of-type ~ aside.cat-nav {
  grid-column: 1;
  grid-row: 1;
}

/* 首页布局：侧栏 + 主内容 */
.layout-shell.sidebar-left {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
}

/* main 内容区域 */
.site-main {
  min-width: 0;
  width: 100%;
}

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

/* ============================================================
   3. HEADER — 全站统一页头
   ============================================================ */
.site-header {
  background-color: var(--color-primary);
  border-bottom: 3px solid var(--color-accent);
  position: relative;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: 1px;
}

.brand-tagline {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 400;
}

.brand:hover .brand-name {
  color: var(--color-accent);
}

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

.main-nav.site-nav ul li a {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-sm);
  transition: color var(--transition-base), background-color var(--transition-base);
  min-height: 44px;
  line-height: 24px;
}

.main-nav.site-nav ul li a:hover {
  color: var(--color-white);
  background-color: rgba(255, 255, 255, 0.08);
}

.main-nav.site-nav ul li a.is-current {
  color: var(--color-white);
  background-color: rgba(46, 196, 182, 0.18);
  box-shadow: inset 0 -2px 0 var(--color-accent);
}

/* ============================================================
   4. BREADCRUMB — 面包屑导航
   ============================================================ */
.breadcrumb {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 10px 0;
}

.breadcrumb ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 14px;
  color: var(--color-text-light);
}

.breadcrumb ol li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

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

.breadcrumb ol li + li::before {
  content: "/";
  color: var(--color-border);
  margin-right: 6px;
}

/* 内页 main 内的面包屑 */
.inner-main .breadcrumb {
  background: transparent;
  border-bottom: none;
  padding: 0 0 16px;
}

.inner-main .breadcrumb a {
  color: var(--color-text-light);
  font-size: 14px;
}

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

.breadcrumb-sep {
  color: var(--color-border);
  margin: 0 6px;
  font-size: 14px;
}

.breadcrumb-current {
  color: var(--color-text);
  font-size: 14px;
}

/* ============================================================
   5. SIDEBAR — 左侧目录导航
   ============================================================ */
.cat-nav {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.cat-nav-inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cat-nav h2 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
  margin-bottom: 4px;
}

.cat-nav ul {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cat-nav ul li a {
  display: block;
  padding: 10px 12px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  min-height: 42px;
  line-height: 22px;
  transition: background-color var(--transition-base), color var(--transition-base), padding-left var(--transition-base);
}

.cat-nav ul li a:hover {
  background-color: var(--color-bg-soft);
  color: var(--color-accent-dark);
  padding-left: 16px;
}

.cat-nav ul li a.is-active,
.cat-nav ul li a.is-current {
  background-color: rgba(46, 196, 182, 0.1);
  color: var(--color-accent-dark);
  font-weight: 600;
  border-left: 3px solid var(--color-accent);
}

/* 侧栏备注 */
.cat-nav-note,
.aside-note {
  margin-top: 16px;
  padding: 14px;
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--color-text-light);
}

.cat-nav-note p,
.aside-note p {
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.6;
}

.text-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent-dark);
  min-height: 36px;
  line-height: 36px;
}

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

/* ============================================================
   6. PAGE HEADER — 内页标题区
   ============================================================ */
.page-header {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.page-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.25;
  margin-bottom: 8px;
}

.page-lead {
  font-size: 16px;
  color: var(--color-text-light);
  max-width: 720px;
  line-height: 1.7;
}

.page-intro {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 24px;
}

/* ============================================================
   7. HERO DIRECTORY — 首页目录式首屏
   ============================================================ */
.hero-directory {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.hero-directory::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--color-accent);
}

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

.hero-text h1 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-primary);
}

.hero-lead {
  font-size: 18px;
  font-weight: 500;
  color: var(--color-accent-dark);
  line-height: 1.5;
}

.hero-text p {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.7;
}

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

.btn-primary,
.btn-secondary,
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  min-height: 44px;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background-color: #1A3A5C;
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(15, 42, 67, 0.25);
}

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

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  background-color: rgba(46, 196, 182, 0.05);
}

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

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

/* 首屏目录列表 */
.hero-directory-list {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.hero-directory-list h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

.hero-directory-list ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hero-directory-list ul li {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.hero-directory-list ul li:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card-hover);
}

.hero-directory-list ul li a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  font-weight: 500;
  color: var(--color-primary);
  min-height: 48px;
}

.hero-directory-list ul li a::after {
  content: "→";
  color: var(--color-accent);
  font-size: 18px;
  transition: transform var(--transition-base);
}

.hero-directory-list ul li a:hover::after {
  transform: translateX(4px);
}

.hero-directory-list ul li span {
  font-size: 13px;
  color: var(--color-text-light);
}

/* 首屏图片 */
.content-media {
  grid-column: 1 / -1;
  margin-top: 8px;
}

.content-media img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.content-media figcaption {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 10px 4px 0;
  line-height: 1.5;
}

/* ============================================================
   8. SERVICE MATRIX — 服务能力矩阵（首页）
   ============================================================ */
.service-matrix {
  margin-bottom: 40px;
}

.service-matrix h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 20px;
  max-width: 720px;
  line-height: 1.6;
}

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

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.service-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.service-card p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
  flex: 1;
}

.scenario-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  background-color: rgba(46, 196, 182, 0.1);
  color: var(--color-accent-dark);
  font-size: 13px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 20px;
  margin-top: 8px;
}

/* ============================================================
   9. PROCESS TIMELINE — 时间轴（首页 & 流程页）
   ============================================================ */
.process-timeline {
  margin-bottom: 40px;
}

.process-timeline h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.timeline {
  position: relative;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 24px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-left: 68px;
  padding-bottom: 24px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-date {
  position: absolute;
  left: 0;
  top: 0;
  width: 48px;
  height: 48px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  line-height: 1.2;
  z-index: 1;
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.timeline-body {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.timeline-body:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card-hover);
}

.timeline-body h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--color-primary);
}

.timeline-body p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 8px;
}

.deliverable {
  display: inline-block;
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 13px;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.timeline-illustration {
  margin-top: 24px;
}

.timeline-illustration img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.timeline-illustration figcaption {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 10px 4px 0;
}

/* 流程页时间轴 */
.process-timeline .timeline-item {
  padding-left: 80px;
  padding-bottom: 28px;
}

.timeline-node {
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 56px;
}

.timeline-date {
  position: static;
  width: auto;
  height: auto;
  background: transparent;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 700;
  border: none;
  box-shadow: none;
  text-align: center;
  line-height: 1.3;
  margin-bottom: 6px;
}

.timeline-marker {
  width: 16px;
  height: 16px;
  background-color: var(--color-accent);
  border-radius: 50%;
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-accent);
}

.process-timeline .timeline::before {
  left: 28px;
}

.process-timeline .timeline-body {
  padding: 20px 24px;
}

.process-timeline .timeline-body h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.timeline-detail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 12px;
}

.detail-item {
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.5;
}

.process-figure {
  margin-top: 28px;
}

.process-figure img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.process-figure figcaption {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 10px 4px 0;
}

/* ============================================================
   10. FAQ RECOMMEND — 首页常见问题推荐
   ============================================================ */
.faq-recommend {
  margin-bottom: 40px;
}

.faq-recommend h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

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

.faq-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  min-height: 120px;
}

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

.faq-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.4;
}

.faq-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 0;
  flex: 1;
}

.support-entry {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

/* ============================================================
   11. SERVICES PAGE — 服务范围页面
   ============================================================ */
.services-intro {
  margin-bottom: 32px;
}

.services-intro p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  max-width: 760px;
}

.intro-figure {
  margin: 20px 0;
}

.intro-figure img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.intro-figure figcaption {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 10px 4px 0;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.service-tags li {
  background-color: var(--color-white);
  border: 1px solid var(--color-accent);
  color: var(--color-accent-dark);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 20px;
}

.service-item-list {
  margin-bottom: 40px;
}

.service-item-list h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.service-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.service-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card-hover);
}

.service-item-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.service-item-head h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
}

.service-tag {
  display: inline-block;
  background-color: rgba(46, 196, 182, 0.1);
  color: var(--color-accent-dark);
  font-size: 13px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 20px;
}

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

.service-meta {
  display: flex;
  gap: 8px;
  align-items: center;
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  flex-wrap: wrap;
}

.meta-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
}

.meta-value {
  font-size: 14px;
  color: var(--color-text);
}

/* 服务场景 */
.service-scenario-list {
  margin-bottom: 40px;
}

.service-scenario-list h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

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

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

.scenario-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card-hover);
}

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

.scenario-card p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

/* ============================================================
   12. QUALITY PRINCIPLES — 质量原则（流程页）
   ============================================================ */
.quality-principles {
  margin-bottom: 40px;
}

.quality-principles h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.principle-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 12px;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  align-items: start;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.principle-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card-hover);
}

.principle-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-accent-dark);
  padding-top: 2px;
}

.principle-card p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

/* ============================================================
   13. FAQ PAGE — 常见问题页面
   ============================================================ */
.page-title-area {
  margin-bottom: 20px;
}

.page-title-area .page-lead {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.7;
}

.faq-intro-media {
  margin-bottom: 28px;
}

.faq-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.faq-figure figcaption {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 10px 4px 0;
}

.faq-accordion-list {
  margin-bottom: 40px;
}

.faq-accordion-list h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color var(--transition-base);
}

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

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  min-height: 52px;
  list-style: none;
  transition: background-color var(--transition-base);
}

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

.faq-item summary::after {
  content: "+";
  font-size: 22px;
  font-weight: 400;
  color: var(--color-accent);
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: 12px;
}

.faq-item[open] summary {
  background-color: rgba(46, 196, 182, 0.05);
}

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

.faq-answer {
  padding: 0 20px 20px;
}

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

.faq-answer p:last-child {
  margin-bottom: 0;
}

/* 支持入口卡片 */
.support-entry-cards {
  margin-bottom: 40px;
}

.support-entry-cards h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
}

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

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

.support-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card-hover);
}

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

.support-card p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 12px;
}

.support-card a {
  display: inline-block;
  font-weight: 600;
  color: var(--color-accent-dark);
  font-size: 15px;
  min-height: 36px;
  line-height: 36px;
}

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

/* 相关内容 */
.related-links {
  margin-top: 28px;
  padding: 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.related-links h2 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}

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

.related-links ul li a {
  display: block;
  padding: 8px 0;
  font-size: 15px;
  color: var(--color-text);
  border-bottom: 1px dashed var(--color-border);
  min-height: 40px;
  line-height: 24px;
}

.related-links ul li a:hover {
  color: var(--color-accent-dark);
  padding-left: 6px;
  border-bottom-color: var(--color-accent);
}

.related-links-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-block;
  margin-right: 12px;
}

.related-links-item {
  display: inline-block;
  font-size: 14px;
  color: var(--color-accent-dark);
  padding: 8px 10px;
  min-height: 36px;
  line-height: 20px;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base);
}

.related-links-item:hover {
  background-color: rgba(46, 196, 182, 0.08);
  color: var(--color-primary);
}

/* ============================================================
   14. CONTACT PAGE — 联系支持页面
   ============================================================ */
.support-method-list {
  margin-bottom: 40px;
}

.support-method-list h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.section-intro {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 20px;
  line-height: 1.6;
  max-width: 720px;
}

.support-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 12px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.support-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card-hover);
}

.support-item h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.support-item p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 8px;
}

.support-item p a {
  color: var(--color-accent-dark);
  font-weight: 500;
}

.support-item p a:hover {
  text-decoration: underline;
}

.item-meta {
  font-size: 14px;
  color: var(--color-text-light);
  background-color: var(--color-bg-soft);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  display: inline-block;
  margin-bottom: 8px;
}

/* 准备清单 */
.preparation-checklist {
  margin-bottom: 40px;
}

.preparation-checklist h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

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

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

.checklist-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-card-hover);
}

.checklist-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  position: relative;
  padding-left: 24px;
}

.checklist-item h3::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-accent);
  font-weight: 700;
  font-size: 16px;
}

.checklist-item p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 0;
}

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

.support-figure img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.support-figure figcaption {
  font-size: 14px;
  color: var(--color-text-light);
  padding: 10px 4px 0;
}

/* ============================================================
   15. 404 PAGE — 错误页
   ============================================================ */
.error-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  background-color: var(--color-bg);
}

.error-section {
  text-align: center;
  max-width: 560px;
  width: 100%;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  box-shadow: var(--shadow-card);
}

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

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

.error-desc {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 24px;
  line-height: 1.6;
}

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

.error-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  min-height: 44px;
  transition: background-color var(--transition-base);
}

.error-btn:hover {
  background-color: #1A3A5C;
  color: var(--color-white);
}

.error-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 15px;
  min-height: 44px;
  transition: border-color var(--transition-base), color var(--transition-base);
}

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

/* ============================================================
   16. FOOTER — 全站统一页脚
   ============================================================ */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.72);
  margin-top: auto;
}

.footer-inner {
  padding-top: 40px;
  padding-bottom: 24px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
}

.footer-brand .brand {
  margin-bottom: 12px;
}

.footer-brand .brand-name {
  font-size: 20px;
  color: var(--color-white);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.6);
  max-width: 280px;
}

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

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

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

.footer-col ul li a {
  display: inline-block;
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  padding: 6px 0;
  min-height: 36px;
  line-height: 24px;
  transition: color var(--transition-base), padding-left var(--transition-base);
}

.footer-col ul li a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
  background-color: rgba(0, 0, 0, 0.15);
}

.footer-bottom p {
  margin-bottom: 0;
}

/* ============================================================
   17. MOBILE BOTTOM NAV — 移动端底部导航
   ============================================================ */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--color-white);
  border-top: 1px solid var(--color-border);
  z-index: 200;
  box-shadow: 0 -2px 8px rgba(15, 42, 67, 0.06);
}

.mobile-bottom-nav ul {
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.mobile-bottom-nav ul li {
  flex: 1;
}

.mobile-bottom-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 6px 4px;
  font-size: 12px;
  color: var(--color-text-light);
  gap: 2px;
  transition: color var(--transition-base);
}

.mobile-bottom-nav a::before {
  content: "";
  display: block;
  width: 20px;
  height: 20px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.6;
}

.mobile-bottom-nav a.active,
.mobile-bottom-nav a.is-current {
  color: var(--color-accent-dark);
  font-weight: 600;
}

.mobile-bottom-nav a.active::before,
.mobile-bottom-nav a.is-current::before {
  opacity: 1;
}

/* ============================================================
   18. RESPONSIVE — 响应式断点
   ============================================================ */

/* 平板及以下 */
@media screen and (max-width: 1024px) {
  .layout-shell.sidebar-left,
  .page-layout.sidebar-left {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 20px;
  }

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

  .hero-directory-list {
    order: 2;
  }

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

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

/* 移动端 */
@media screen and (max-width: 768px) {
  body {
    padding-bottom: 60px;
  }

  .header-inner {
    min-height: 56px;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .brand-name {
    font-size: 20px;
  }

  .brand-tagline {
    display: none;
  }

  .main-nav.site-nav {
    display: block;
  }

  .main-nav.site-nav ul {
    gap: 2px;
  }

  .main-nav.site-nav ul li a {
    padding: 8px 10px;
    font-size: 14px;
    min-height: 40px;
    line-height: 20px;
  }

  /* 布局改为单列，main 在前，aside 折叠为横向标签 */
  .layout-shell.sidebar-left,
  .page-layout.sidebar-left {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding-top: 16px;
    padding-bottom: 32px;
  }

  .layout-shell.sidebar-left > main.site-main,
  .page-layout.sidebar-left > main.site-main,
  .layout-shell.sidebar-left > main.site-main:first-of-type,
  .page-layout.sidebar-left > main.site-main:first-of-type {
    order: 1;
    width: 100%;
  }

  .layout-shell.sidebar-left > aside.cat-nav,
  .page-layout.sidebar-left > aside.cat-nav,
  .layout-shell.sidebar-left > main.site-main ~ aside.cat-nav,
  .page-layout.sidebar-left > main.site-main ~ aside.cat-nav {
    order: 2;
    position: static;
    width: 100%;
  }

  .cat-nav {
    padding: 12px;
  }

  .cat-nav h2 {
    font-size: 15px;
    padding-bottom: 8px;
  }

  .cat-nav ul {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px;
  }

  .cat-nav ul li {
    flex: 0 0 auto;
  }

  .cat-nav ul li a {
    padding: 8px 14px;
    font-size: 14px;
    min-height: 40px;
    line-height: 24px;
    border-radius: 20px;
    border: 1px solid var(--color-border);
    background-color: var(--color-white);
  }

  .cat-nav ul li a.is-active,
  .cat-nav ul li a.is-current {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
  }

  .cat-nav-note,
  .aside-note {
    display: none;
  }

  /* 移动端底部导航显示 */
  .mobile-bottom-nav {
    display: block;
  }

  .mobile-bottom-nav ul li a {
    min-height: 52px;
  }

  /* 首页模块 */
  .hero-directory {
    padding: 20px;
  }

  .hero-text h1 {
    font-size: 26px;
  }

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

  .hero-cta {
    flex-direction: column;
  }

  .btn-primary,
  .btn-secondary,
  .btn-outline {
    width: 100%;
  }

  .hero-directory-list ul li a {
    padding: 12px 14px;
  }

  .content-media img {
    height: 200px;
  }

  /* 服务矩阵 */
  .matrix-grid {
    grid-template-columns: 1fr;
  }

  /* 时间轴 */
  .timeline::before {
    left: 16px;
  }

  .timeline-item {
    padding-left: 48px;
  }

  .timeline-date {
    width: 36px;
    height: 36px;
    font-size: 11px;
  }

  .process-timeline .timeline-item {
    padding-left: 56px;
  }

  .timeline-node {
    width: 40px;
  }

  .process-timeline .timeline::before {
    left: 20px;
  }

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

  /* FAQ 卡片 */
  .faq-card-grid {
    grid-template-columns: 1fr;
  }

  /* 服务页 */
  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .service-item {
    padding: 16px;
  }

  .service-item-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .service-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  /* 流程页 */
  .principle-card {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 16px;
  }

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

  .faq-answer {
    padding: 0 16px 16px;
  }

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

  /* 联系页 */
  .checklist-grid {
    grid-template-columns: 1fr;
  }

  .support-item {
    padding: 16px;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-top: 28px;
  }

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

  .footer-col h4 {
    margin-bottom: 8px;
  }

  .footer-bottom {
    padding: 12px 16px;
    font-size: 12px;
  }

  /* 404 */
  .error-section {
    padding: 32px 20px;
  }

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

  .error-section h1 {
    font-size: 24px;
  }

  .error-actions {
    flex-direction: column;
  }

  .error-btn,
  .error-link {
    width: 100%;
  }

  /* 面包屑 */
  .breadcrumb {
    padding: 8px 0;
  }

  .breadcrumb ol {
    font-size: 13px;
  }

  .page-header {
    margin-bottom: 16px;
    padding-bottom: 14px;
  }

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

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 20px;
  }

  h3 {
    font-size: 16px;
  }
}

/* 小屏手机 */
@media screen and (max-width: 480px) {
  .header-inner {
    padding-left: 16px;
    padding-right: 16px;
  }

  .layout-shell,
  .page-layout,
  .layout-shell.sidebar-left,
  .page-layout.sidebar-left {
    padding-left: 16px;
    padding-right: 16px;
  }

  .main-nav.site-nav ul li a {
    padding: 8px 8px;
    font-size: 13px;
  }

  .hero-directory {
    padding: 16px;
  }

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

  .timeline-body {
    padding: 14px 16px;
  }

  .timeline-detail .detail-item {
    padding: 8px 10px;
    font-size: 13px;
  }

  .content-media img,
  .timeline-illustration img,
  .process-figure img,
  .intro-figure img,
  .faq-figure img,
  .support-figure img {
    height: 180px;
  }

  .service-tags li {
    font-size: 13px;
    padding: 4px 10px;
  }

  .support-card,
  .checklist-item,
  .scenario-card {
    padding: 16px;
  }
}

/* 打印样式 */
@media print {
  .mobile-bottom-nav,
  .site-header,
  .site-footer {
    display: none;
  }

  body {
    background-color: var(--color-white);
  }

  .layout-shell.sidebar-left,
  .page-layout.sidebar-left {
    display: block;
  }

  .cat-nav {
    display: none;
  }
}