/* ============================================================
   91黑料吃瓜 - 整站样式表
   视觉方向：政府信息风 · 深蓝主色 · 高信息密度
   ============================================================ */

/* ============================================================
   1. Base — 基础变量、重置与全局元素
   ============================================================ */
:root {
  --color-primary: #1B3A5C;
  --color-secondary: #3B6E9F;
  --color-accent: #C8892B;
  --color-bg-light: #F4F6F9;
  --color-text: #222222;
  --color-text-light: #5A6B7C;
  --color-border: #DCE3EA;
  --color-white: #FFFFFF;
  --color-bg-deep: #162C46;

  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;

  --container-width: 1200px;
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
}

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

html {
  font-size: 16px;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

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

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

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-primary);
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 12px;
}

strong {
  font-weight: 700;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* 无障碍隐藏 */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   2. Layout — 布局骨架：容器、页头、页脚、面包屑、页标题
   ============================================================ */

/* 全站统一容器 */
.container,
.header-inner,
.footer-inner,
.hero-inner,
.topbar-inner,
.panel-inner,
.action-inner,
.conclusion-inner {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

/* ---------- 顶部信息条 ---------- */
.topbar {
  background-color: var(--color-bg-deep);
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 40px;
  gap: var(--spacing-sm);
}

.topbar-text {
  margin: 0;
  line-height: 1.5;
}

.topbar-link {
  color: rgba(255, 255, 255, 0.9);
  padding: 4px 0;
  white-space: nowrap;
  border-bottom: 1px solid transparent;
}

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

/* ---------- 页头 ---------- */
.site-header {
  background-color: var(--color-white);
  border-bottom: 2px solid var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: var(--spacing-md);
}

.brand {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-xs);
  flex-shrink: 0;
}

.brand-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.brand-tag {
  font-size: 13px;
  color: var(--color-text-light);
  border-left: 1px solid var(--color-border);
  padding-left: var(--spacing-xs);
  line-height: 1.4;
}

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

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

.nav-item {
  margin: 0;
}

.nav-link {
  display: block;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 2px solid transparent;
  line-height: 1.4;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-secondary);
}

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

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

.toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md) 0;
  font-size: 14px;
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

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

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

.breadcrumb-sep {
  color: var(--color-border);
  margin: 0 2px;
}

.breadcrumb-current {
  color: var(--color-text-light);
}

/* ---------- 页标题区 ---------- */
.page-header {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-md) 0;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.4;
  margin: var(--spacing-xs) 0;
}

/* 页面描述区（内页统一） */
.page-title-section,
.page-title-area,
.page-title-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md) 0;
}

.page-description,
.page-intro,
.page-title-desc {
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.8;
  max-width: 860px;
  margin-bottom: var(--spacing-sm);
}

/* ---------- 主内容区 ---------- */
.site-main {
  flex: 1;
  width: 100%;
}

.inner-main {
  padding-bottom: var(--spacing-2xl);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background-color: var(--color-bg-deep);
  color: rgba(255, 255, 255, 0.8);
  margin-top: auto;
}

.footer-inner {
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--spacing-xl);
}

.footer-brand {
  padding-right: var(--spacing-md);
}

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

.footer-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.7;
  margin-bottom: 0;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.footer-group h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-list li {
  margin-bottom: 6px;
}

.footer-list a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  line-height: 1.6;
  padding: 2px 0;
  display: inline-block;
}

.footer-list a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: var(--spacing-sm) 0;
}

.footer-bottom .copyright {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================================
   3. Components — 通用组件：按钮、卡片、FAQ、目录、面板
   ============================================================ */

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: center;
  min-height: 44px;
  border: 1px solid transparent;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

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

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

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

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

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

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-bg-light);
}

/* ---------- 区块标题 ---------- */
.section-head {
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 760px;
  line-height: 1.7;
  margin-bottom: 0;
}

/* ---------- 内容目录 ---------- */
.content-directory {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-md) 0;
}

.directory-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  padding-bottom: var(--spacing-xs);
  border-bottom: 1px solid var(--color-border);
}

.directory-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs) var(--spacing-md);
}

.directory-list a {
  font-size: 14px;
  color: var(--color-secondary);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}

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

/* ---------- 行动面板 ---------- */
.action-panel {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-md);
}

.action-panel .panel-inner,
.action-panel .action-inner {
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.panel-text,
.action-text {
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 0;
  flex: 1;
  min-width: 240px;
}

.panel-actions,
.action-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* 内页 action-panel 标题 */
.action-panel .action-title {
  font-size: 18px;
  margin-bottom: var(--spacing-xs);
}

.action-panel .action-desc {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

/* ---------- 结论区 ---------- */
.conclusion-section,
.conclusion-block,
.conclusion {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-md) 0;
}

.conclusion-section {
  padding-top: var(--spacing-lg);
}

.conclusion-section h2,
.conclusion-title {
  font-size: 18px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.conclusion-section p,
.conclusion-text {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  max-width: 860px;
}

.conclusion-link {
  display: inline-block;
  margin-top: var(--spacing-xs);
  font-weight: 600;
}

/* ---------- 相关链接 ---------- */
.related-links {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

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

.related-links-item {
  font-size: 14px;
  color: var(--color-secondary);
  padding: 4px 12px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  line-height: 1.5;
}

.related-links-item:hover {
  border-color: var(--color-secondary);
  background-color: var(--color-bg-light);
}

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

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

figcaption {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-top: var(--spacing-xs);
  text-align: center;
}

/* ---------- 文本链接 ---------- */
.text-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-secondary);
  padding: 6px 0;
  border-bottom: 1px solid var(--color-secondary);
  margin-top: var(--spacing-xs);
}

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

/* ============================================================
   4. Pages — 首页
   ============================================================ */

/* ---------- Hero 区域 ---------- */
.hero-section {
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-content {
  padding-right: var(--spacing-md);
}

.hero-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.4;
  margin-bottom: var(--spacing-sm);
}

.hero-desc {
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.hero-media {
  position: relative;
}

.hero-figure {
  margin: 0;
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.hero-meta {
  max-width: var(--container-width);
  margin: var(--spacing-lg) auto 0;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.meta-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.meta-label {
  font-size: 13px;
  color: var(--color-text-light);
  font-weight: 500;
}

.meta-value {
  font-size: 15px;
  color: var(--color-text);
  font-weight: 600;
  line-height: 1.5;
}

/* ---------- 通用区块 ---------- */
.section-block {
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.section-block .section-head {
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--spacing-md);
}

/* ---------- 服务速览 ---------- */
.service-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.service-card:hover {
  border-color: var(--color-secondary);
  box-shadow: 0 2px 8px rgba(27, 58, 92, 0.08);
}

.card-title {
  font-size: 18px;
  color: var(--color-primary);
  margin-bottom: 0;
}

.card-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
  flex: 1;
}

.card-tag {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
  display: inline-block;
  padding: 2px 10px;
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  align-self: flex-start;
}

.card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-secondary);
  align-self: flex-start;
  border-bottom: 1px solid transparent;
}

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

/* ---------- 成果预览 ---------- */
.deliverable-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.deliverable-media {
  position: sticky;
  top: 88px;
}

.media-figure {
  margin: 0;
}

.media-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.deliverable-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.deliverable-item {
  background-color: var(--color-bg-light);
  border-left: 3px solid var(--color-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: var(--spacing-sm) var(--spacing-md);
}

.item-title {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.item-desc {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ---------- 适用对象预览 ---------- */
.audience-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.audience-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: left;
}

.item-name {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--color-bg-light);
}

.audience-item .item-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ---------- 流程预览 ---------- */
.process-current {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.process-current p {
  background-color: var(--color-bg-light);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 0;
}

.process-current strong {
  color: var(--color-primary);
}

.process-steps {
  max-width: var(--container-width);
  margin: var(--spacing-md) auto 0;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

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

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: var(--spacing-xs);
}

.step-name {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 4px;
}

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

/* ---------- 准备清单预览 ---------- */
.checklist {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xs) var(--spacing-md);
}

.check-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) 0;
}

.check-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-secondary);
  border-radius: 50%;
  margin-top: 4px;
  position: relative;
}

.check-icon::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 3px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--color-secondary);
  border-bottom: 2px solid var(--color-secondary);
  transform: rotate(45deg);
}

.check-text {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
}

/* ---------- FAQ 预览 ---------- */
.faq-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-sm) 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 4px;
}

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

/* ============================================================
   5. Pages — 内页（service / audience / process / deliverable / prepare / faq）
   ============================================================ */

/* ---------- 服务项目页 ---------- */
.service-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md) 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.service-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-md);
  transition: border-color var(--transition-fast);
}

.service-item:hover {
  border-color: var(--color-secondary);
}

.service-item-text {
  flex: 1;
}

.service-item-text h2 {
  font-size: 19px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.service-summary {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.service-detail {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: var(--spacing-xs);
}

.service-audience,
.service-boundary {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 4px;
}

.service-audience strong,
.service-boundary strong {
  color: var(--color-primary);
}

.service-link {
  flex-shrink: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-secondary);
  padding: 6px 0;
  border-bottom: 1px solid var(--color-secondary);
  margin-top: var(--spacing-xs);
  white-space: nowrap;
}

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

/* 服务对比表 */
.service-compare {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) 0;
}

.service-compare h2 {
  font-size: 20px;
  margin-bottom: var(--spacing-sm);
}

.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.compare-table {
  min-width: 680px;
  font-size: 14px;
}

.compare-table th,
.compare-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.6;
}

.compare-table thead th {
  background-color: var(--color-primary);
  color: var(--color-white);
  font-weight: 600;
  white-space: nowrap;
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td {
  border-bottom: none;
}

.compare-table tbody th {
  background-color: var(--color-bg-light);
  color: var(--color-primary);
  font-weight: 600;
  width: 140px;
  white-space: nowrap;
}

.compare-table tbody tr:hover {
  background-color: rgba(244, 246, 249, 0.5);
}

/* 服务场景图 */
.service-media {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) 0;
}

.service-figure {
  margin: 0;
}

.service-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

/* ---------- 适用对象页 ---------- */
.audience-categories {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md) 0;
}

.audience-categories .section-intro,
.judgment-list .section-intro {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  max-width: 760px;
}

.audience-categories .section-title,
.judgment-list .section-title {
  margin-bottom: var(--spacing-xs);
}

.audience-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  transition: border-color var(--transition-fast);
}

.audience-card:hover {
  border-color: var(--color-secondary);
}

.audience-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--color-bg-light);
}

.audience-name {
  font-size: 18px;
  color: var(--color-primary);
  margin-bottom: 0;
}

.audience-tag {
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
  padding: 2px 10px;
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  white-space: nowrap;
}

.audience-desc {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: var(--spacing-xs);
}

.audience-need,
.audience-fit {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 4px;
}

.audience-need strong,
.audience-fit strong {
  color: var(--color-primary);
}

/* 判断清单 */
.judgment-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) 0;
}

.judgment-items {
  counter-reset: judgment;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.judgment-item {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  counter-increment: judgment;
  position: relative;
}

.judgment-item::before {
  content: "0" counter(judgment);
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  font-size: 24px;
  font-weight: 700;
  color: rgba(27, 58, 92, 0.12);
  line-height: 1;
}

.judgment-question {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  padding-right: 48px;
}

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

/* 角色场景图 */
.audience-scene {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) 0;
}

.scene-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

/* ---------- 工作步骤页 ---------- */
.process-visual {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-md) 0;
}

.process-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.current-status {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md) 0;
  background-color: var(--color-bg-light);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--spacing-md);
}

.status-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

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

.status-next {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* 时间轴 */
.process-timeline {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) 0;
}

.process-timeline h2 {
  font-size: 20px;
  margin-bottom: var(--spacing-md);
}

.timeline-list {
  position: relative;
  padding-left: 0;
}

.timeline-list::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-item {
  position: relative;
  padding-left: 56px;
  padding-bottom: var(--spacing-md);
}

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

.timeline-marker {
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 40px;
}

.step-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: 16px;
  font-weight: 700;
  border-radius: 50%;
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-border);
  z-index: 1;
}

.step-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-light);
  margin-top: 4px;
  white-space: nowrap;
}

.step-content {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
}

.step-content h3 {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.step-content p {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 4px;
}

.step-note {
  font-size: 13px;
  color: var(--color-text-light);
  font-style: normal;
}

/* 步骤输出 */
.step-outputs {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) 0;
}

.step-outputs h2 {
  font-size: 20px;
  margin-bottom: var(--spacing-md);
}

.outputs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
}

.output-card {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  border-top: 3px solid var(--color-secondary);
}

.output-card h3 {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.output-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: var(--spacing-xs);
}

.output-card a {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-secondary);
  border-bottom: 1px solid var(--color-secondary);
  padding-bottom: 2px;
}

.output-card a:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ---------- 成果形式页 ---------- */
.definition-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md) 0;
}

.definition-block h2 {
  font-size: 20px;
  margin-bottom: var(--spacing-xs);
}

.definition-text {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  max-width: 860px;
  margin-bottom: var(--spacing-xs);
}

.deliverable-types {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) 0;
}

.deliverable-types > h2 {
  font-size: 20px;
  margin-bottom: var(--spacing-md);
}

.deliverable-types .deliverable-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-secondary);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  display: block;
}

.deliverable-text h3 {
  font-size: 17px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.deliverable-desc {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: var(--spacing-xs);
}

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

.deliverable-example strong {
  color: var(--color-primary);
}

.deliverable-figure {
  margin-top: var(--spacing-md);
}

.deliverable-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.figure-caption {
  font-size: 13px;
  color: var(--color-text-light);
  text-align: center;
  margin-top: var(--spacing-xs);
}

/* 验收标准 */
.acceptance-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) 0;
}

.acceptance-block h2 {
  font-size: 20px;
  margin-bottom: var(--spacing-md);
}

.acceptance-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.acceptance-item {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.acceptance-item strong {
  display: block;
  color: var(--color-primary);
  font-size: 15px;
  margin-bottom: 4px;
}

/* 关联术语 */
.related-terms {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) 0;
}

.related-terms h2 {
  font-size: 20px;
  margin-bottom: var(--spacing-md);
}

.related-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-sm);
}

.related-item a {
  display: block;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-secondary);
  text-align: center;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.related-item a:hover {
  border-color: var(--color-secondary);
  background-color: var(--color-bg-light);
  color: var(--color-primary);
}

/* ---------- 合作准备页 ---------- */
.prepare-list,
.explanation-list,
.communication-notes,
.faq-entry {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md) 0;
}

.prepare-list .section-title,
.explanation-list .section-title,
.communication-notes .section-title,
.faq-entry .section-title {
  margin-bottom: var(--spacing-md);
}

.prepare-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.prepare-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-start;
}

.prepare-icon {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 16px;
  font-weight: 700;
}

.prepare-content {
  flex: 1;
}

.prepare-name {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: 4px;
}

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

/* 逐项解释 */
.explanation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.explanation-item {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  border-left: 3px solid var(--color-secondary);
}

.explanation-name {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

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

/* 沟通方式 */
.communication-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.communication-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
}

.communication-name {
  font-size: 16px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  padding-bottom: var(--spacing-xs);
  border-bottom: 1px solid var(--color-border);
}

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

/* FAQ 入口 */
.faq-entry {
  padding-bottom: var(--spacing-md);
}

.faq-entry-text {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.entry-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-secondary);
  padding: 6px 0;
  border-bottom: 1px solid var(--color-secondary);
}

.entry-link:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* 内联图 */
.content-media-inline {
  margin: var(--spacing-sm) 0;
}

.content-media-inline img {
  max-width: 720px;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

/* ---------- 常见问题页 ---------- */
.faq-intro-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-md) 0;
}

.faq-intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.faq-intro-text p {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: 0;
}

.faq-intro-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.faq-groups-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md) 0;
}

.faq-group {
  margin-bottom: var(--spacing-lg);
}

.faq-group-title {
  font-size: 19px;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
  padding-bottom: var(--spacing-xs);
  border-bottom: 2px solid var(--color-primary);
}

.faq-group .faq-list {
  padding: 0;
}

.faq-group .faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-xs);
  padding: 0;
  overflow: hidden;
}

.faq-group .faq-item summary {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
  transition: background-color var(--transition-fast);
}

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

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

.faq-group .faq-item[open] summary {
  background-color: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
}

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

.faq-group .faq-item summary:hover {
  background-color: var(--color-bg-light);
}

.faq-group .faq-answer {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.8;
  background-color: var(--color-white);
}

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

/* FAQ 结论区 */
.conclusion-inner {
  background-color: var(--color-bg-light);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  border-left: 4px solid var(--color-accent);
}

.conclusion-inner .conclusion-title {
  font-size: 18px;
  margin-bottom: var(--spacing-xs);
}

.conclusion-inner .conclusion-text {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ============================================================
   6. Pages — 404 页面
   ============================================================ */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl) var(--spacing-md);
  flex: 1;
}

.error-panel {
  max-width: 640px;
  width: 100%;
  text-align: center;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-2xl) var(--spacing-xl);
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.error-panel h1 {
  font-size: 24px;
  margin-bottom: var(--spacing-sm);
}

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

.error-actions {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
}

.error-help {
  font-size: 13px;
  color: var(--color-text-light);
  margin-bottom: 0;
}

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

/* ---------- 1024px 断点 ---------- */
@media (max-width: 1024px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .footer-brand {
    padding-right: 0;
  }

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

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

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

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

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

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

  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .hero-content {
    padding-right: 0;
  }

  .hero-media {
    max-width: 640px;
  }

  .deliverable-layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .deliverable-media {
    position: static;
    max-width: 640px;
  }

  .faq-intro-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
}

/* ---------- 768px 断点 ---------- */
@media (max-width: 768px) {
  body {
    font-size: 15px;
  }

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }

  h3 {
    font-size: 17px;
  }

  .container,
  .header-inner,
  .footer-inner,
  .hero-inner,
  .topbar-inner,
  .panel-inner,
  .action-inner,
  .conclusion-inner {
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
  }

  /* 页头 */
  .header-inner {
    min-height: 60px;
  }

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

  .brand-tag {
    display: none;
  }

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

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 2px solid var(--color-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    display: block;
    padding: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: var(--spacing-xs) 0;
  }

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

  .nav-item {
    border-bottom: 1px solid var(--color-border);
  }

  .nav-item:last-child {
    border-bottom: none;
  }

  .nav-link {
    padding: 14px var(--spacing-md);
    border-bottom: none;
    border-left: 3px solid transparent;
    font-size: 16px;
  }

  .nav-link:hover {
    border-bottom: none;
    border-left-color: var(--color-secondary);
    background-color: var(--color-bg-light);
  }

  .nav-link.is-current {
    border-bottom: none;
    border-left-color: var(--color-accent);
    background-color: var(--color-bg-light);
  }

  /* 面包屑 */
  .breadcrumb {
    padding: var(--spacing-xs) var(--spacing-sm) 0;
    font-size: 13px;
  }

  .page-header {
    padding: var(--spacing-sm) var(--spacing-sm) 0;
  }

  .page-title {
    font-size: 24px;
  }

  .page-title-section,
  .page-title-area,
  .page-title-block {
    padding: var(--spacing-xs) var(--spacing-sm) 0;
  }

  .page-description,
  .page-intro,
  .page-title-desc {
    font-size: 15px;
  }

  /* 页脚 */
  .footer-inner {
    padding-top: var(--spacing-lg);
    gap: var(--spacing-sm);
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .footer-group h3 {
    font-size: 14px;
  }

  /* 首页 hero */
  .hero-section {
    padding: var(--spacing-lg) 0;
  }

  .hero-title {
    font-size: 24px;
  }

  .hero-desc {
    font-size: 15px;
  }

  .hero-meta {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
  }

  .meta-item {
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  /* 通用区块 */
  .section-block {
    padding: var(--spacing-lg) 0;
  }

  /* 首页网格降为单列 */
  .service-grid,
  .audience-grid,
  .process-steps,
  .checklist,
  .outputs-grid,
  .acceptance-list,
  .related-list,
  .prepare-grid,
  .explanation-grid,
  .communication-grid,
  .judgment-items {
    grid-template-columns: 1fr;
  }

  /* 首页服务卡片 */
  .service-card {
    padding: var(--spacing-sm);
  }

  /* 首页成果预览 */
  .deliverable-item {
    padding: var(--spacing-sm);
  }

  /* 流程步骤 */
  .process-step {
    padding: var(--spacing-sm);
  }

  .step-num {
    width: 28px;
    height: 28px;
    font-size: 14px;
  }

  /* 检查清单 */
  .check-item {
    padding: 4px 0;
  }

  /* 行动面板 */
  .action-panel .panel-inner,
  .action-panel .action-inner {
    padding: var(--spacing-sm);
    flex-direction: column;
    align-items: stretch;
  }

  .panel-actions,
  .action-buttons {
    width: 100%;
  }

  .panel-actions .btn,
  .action-buttons .btn {
    flex: 1;
  }

  /* 服务页 */
  .service-item {
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
  }

  .service-link {
    align-self: flex-start;
  }

  .table-wrapper {
    margin: 0 calc(-1 * var(--spacing-sm));
    border-left: none;
    border-right: none;
    border-radius: 0;
  }

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

  /* 适用对象页 */
  .audience-card {
    padding: var(--spacing-sm);
  }

  .audience-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  /* 过程页 */
  .timeline-list::before {
    left: 15px;
  }

  .timeline-item {
    padding-left: 44px;
  }

  .timeline-marker {
    width: 32px;
  }

  .step-number {
    width: 32px;
    height: 32px;
    font-size: 14px;
    border-width: 2px;
  }

  .step-name {
    font-size: 12px;
  }

  .step-content {
    padding: var(--spacing-sm);
  }

  .current-status {
    padding: var(--spacing-sm);
  }

  /* 成果页 */
  .deliverable-types .deliverable-item {
    padding: var(--spacing-sm);
  }

  .acceptance-item {
    padding: var(--spacing-sm);
  }

  /* 准备页 */
  .prepare-item {
    padding: var(--spacing-sm);
  }

  .explanation-item {
    padding: var(--spacing-sm);
  }

  /* FAQ 页 */
  .faq-group .faq-item summary {
    padding: var(--spacing-sm);
    padding-right: 40px;
    font-size: 14px;
  }

  .faq-group .faq-answer {
    padding: var(--spacing-sm);
  }

  /* 404 */
  .error-panel {
    padding: var(--spacing-xl) var(--spacing-md);
  }

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

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

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

  /* 相关链接 */
  .related-links {
    padding: var(--spacing-sm);
  }
}

/* ---------- 480px 断点 ---------- */
@media (max-width: 480px) {
  .topbar-text {
    font-size: 13px;
  }

  .footer-links {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm) var(--spacing-md);
  }

  .footer-group h3 {
    font-size: 14px;
  }

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

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

  .btn {
    padding: 10px 16px;
    font-size: 14px;
  }

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

  .section-desc {
    font-size: 14px;
  }

  .service-item-text h2 {
    font-size: 17px;
  }

  .audience-name {
    font-size: 17px;
  }

  .step-content h3 {
    font-size: 15px;
  }

  .output-card h3 {
    font-size: 15px;
  }

  .deliverable-text h3 {
    font-size: 16px;
  }

  .related-item a {
    font-size: 14px;
    padding: var(--spacing-xs) var(--spacing-sm);
  }

  .prepare-icon {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }

  .prepare-name {
    font-size: 15px;
  }
}