/* ==========================================================================
   吃瓜911 全站样式表
   版本: 1.0
   说明: 本样式表覆盖整站全部页面与组件，遵循网站标准与 DOM 契约
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Base — 基础样式
   -------------------------------------------------------------------------- */
:root {
  --color-bg: #F5EFE4;
  --color-bg-card: #FFF9F0;
  --color-bg-deep: #262020;
  --color-text: #262020;
  --color-text-body: #4A3F38;
  --color-text-muted: #7A5C4E;
  --color-accent: #B23A1E;
  --color-accent-soft: #E0A23B;
  --color-border: #E8D9C6;
  --color-white: #FFFFFF;

  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;

  --container-width: 1200px;
  --container-narrow: 760px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;

  --header-height: 72px;
  --transition-base: 0.25s ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-body);
  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-accent);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

ul,
ol {
  list-style-position: inside;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-serif);
  color: var(--color-text);
  line-height: 1.35;
  font-weight: 700;
}

h1 {
  font-size: 36px;
}

h2 {
  font-size: 26px;
}

h3 {
  font-size: 20px;
}

p {
  margin-bottom: 12px;
}

/* 页面骨架 */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.site-main {
  flex: 1 0 auto;
}

/* --------------------------------------------------------------------------
   2. Layout — 布局系统
   -------------------------------------------------------------------------- */
.container-wide {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  width: 100%;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  width: 100%;
}

/* 窄版阅读流 */
.insights-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .insights-inner {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

/* 两栏布局：主内容在前，侧栏在后 */
.page-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: var(--space-lg);
  align-items: start;
}

@media (max-width: 768px) {
  .page-layout {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

/* 两列通用布局 */
.two-col-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .two-col-layout {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

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

/* ---------- 3.1 页头 ---------- */
.site-header {
  background-color: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 1px;
}

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

.main-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
}

.nav-list li a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  color: var(--color-text-body);
  border-radius: var(--radius-sm);
  line-height: 1.4;
}

.nav-list li a:hover {
  color: var(--color-accent);
  background-color: rgba(178, 58, 30, 0.06);
}

.nav-list li a.is-current {
  color: var(--color-accent);
  font-weight: 600;
  background-color: rgba(178, 58, 30, 0.08);
}

.header-action {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.btn-consult {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  background-color: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  min-height: 44px;
}

.btn-consult:hover {
  background-color: var(--color-text);
  color: var(--color-white);
}

.icon-consult {
  display: inline-block;
  width: 16px;
  height: 16px;
  background-color: currentColor;
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
}

.icon-consult::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 8px;
  background-color: var(--color-white);
  border-radius: 50%;
  top: 4px;
  left: 4px;
}

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

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

/* ---------- 3.2 面包屑 ---------- */
.breadcrumb {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 16px var(--space-md) 0;
  font-size: 13px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

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

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

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

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

/* ---------- 3.3 页面标题区 ---------- */
.page-header {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 24px var(--space-md) 0;
}

.page-title {
  font-size: 36px;
  color: var(--color-text);
  line-height: 1.3;
}

.page-title-area,
.page-title-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 12px var(--space-md) 0;
}

.page-intro {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 760px;
  line-height: 1.8;
}

/* ---------- 3.4 区块标题 ---------- */
.section-header,
.section-heading,
.section-head {
  margin-bottom: var(--space-md);
}

.section-header h2,
.section-heading h2,
.section-head h2 {
  font-size: 26px;
  margin-bottom: 8px;
}

.section-header p,
.section-heading p,
.section-head p {
  color: var(--color-text-muted);
  font-size: 15px;
  max-width: 640px;
}

.section-desc {
  color: var(--color-text-muted);
  font-size: 15px;
  max-width: 640px;
  margin-bottom: var(--space-md);
}

/* ---------- 3.5 按钮 ---------- */
.btn-primary,
.btn-secondary,
.btn-home,
.btn-service,
.btn-handbook {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

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

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

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

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

.btn-home,
.btn-service,
.btn-handbook {
  background-color: var(--color-bg-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-home:hover,
.btn-service:hover,
.btn-handbook:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ---------- 3.6 卡片通用 ---------- */
.task-card,
.level-card,
.capability-item,
.deliverable-card,
.resource-card,
.category-card,
.discussion-card,
.error-card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.task-card:hover,
.level-card:hover,
.capability-item:hover,
.deliverable-card:hover,
.resource-card:hover,
.category-card:hover,
.discussion-card:hover,
.error-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(38, 32, 32, 0.08);
  border-color: var(--color-accent-soft);
}

/* ---------- 3.7 相关任务带 ---------- */
.related-tasks {
  background-color: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  padding: var(--space-lg) 0;
  margin-top: var(--space-xl);
}

.related-tasks h2,
.related-title {
  font-size: 22px;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.task-cards,
.task-grid,
.task-card-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.task-card {
  display: block;
  padding: var(--space-md);
}

.task-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.task-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 0;
  line-height: 1.6;
}

@media (max-width: 768px) {
  .task-cards,
  .task-grid,
  .task-card-list {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}

/* ---------- 3.8 步骤条（通用） ---------- */
.steps-row,
.path-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.step-item,
.path-step {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  position: relative;
}

.step-num,
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: var(--space-sm);
  font-family: var(--font-serif);
}

.step-item h3,
.path-step h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.step-item p,
.path-step p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .steps-row,
  .path-steps {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
  }
}

@media (max-width: 480px) {
  .steps-row,
  .path-steps {
    grid-template-columns: 1fr;
  }
}

/* ---------- 3.9 手风琴 ---------- */
.accordion-list,
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.accordion-item,
.faq-item {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion-item summary,
.faq-item summary {
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 500;
  color: var(--color-text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  min-height: 44px;
}

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

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

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

.accordion-item p,
.faq-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 0;
}

/* ---------- 3.10 表格 ---------- */
.table-wrap {
  overflow-x: auto;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

th,
td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  line-height: 1.6;
}

th {
  background-color: rgba(232, 217, 198, 0.4);
  font-weight: 600;
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: 15px;
}

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

tr:last-child td {
  border-bottom: none;
}

/* ---------- 3.11 图片与说明 ---------- */
figure {
  margin: 0;
}

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

/* ---------- 3.12 页脚 ---------- */
.site-footer {
  background-color: var(--color-bg-deep);
  color: rgba(255, 249, 240, 0.8);
  margin-top: auto;
  padding: var(--space-xl) 0 0;
}

.footer-top {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md) var(--space-lg);
  border-bottom: 1px solid rgba(255, 249, 240, 0.15);
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-bg-card);
  margin-bottom: 8px;
}

.footer-slogan {
  font-size: 15px;
  color: var(--color-accent-soft);
  margin-bottom: 8px;
}

.footer-desc {
  font-size: 14px;
  color: rgba(255, 249, 240, 0.6);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 0;
}

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

.footer-col h3 {
  font-size: 16px;
  color: var(--color-bg-card);
  margin-bottom: var(--space-sm);
}

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

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: rgba(255, 249, 240, 0.7);
  font-size: 14px;
  display: inline-block;
  padding: 4px 0;
  min-height: 32px;
  line-height: 1.4;
}

.footer-col ul li a:hover {
  color: var(--color-accent-soft);
}

.footer-bottom {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-md) var(--space-md) var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid rgba(255, 249, 240, 0.1);
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 249, 240, 0.5);
  margin: 0;
}

.footer-note {
  max-width: 640px;
  text-align: right;
}

@media (max-width: 768px) {
  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-note {
    text-align: left;
  }
}

/* --------------------------------------------------------------------------
   4. Pages — 页面专属样式
   -------------------------------------------------------------------------- */

/* ---------- 4.1 首页 ---------- */

/* 首屏 hero */
.hero-section {
  background-color: var(--color-bg);
  padding: var(--space-xl) 0 var(--space-lg);
}

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

.hero-content {
  max-width: 560px;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  background-color: rgba(178, 58, 30, 0.08);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
  letter-spacing: 0.5px;
}

.hero-content h1 {
  font-size: 38px;
  line-height: 1.3;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.hero-lead {
  font-size: 16px;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.hero-changes {
  list-style: none;
  margin-bottom: var(--space-lg);
}

.hero-changes li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 15px;
  color: var(--color-text-body);
  line-height: 1.6;
}

.hero-changes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent-soft);
  border-radius: 50%;
}

.hero-changes strong {
  color: var(--color-text);
  font-weight: 600;
}

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

.hero-media {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(38, 32, 32, 0.1);
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

/* 首屏下方配图 */
.content-media-primary {
  max-width: var(--container-width);
  margin: var(--space-md) auto 0;
  padding: 0 var(--space-md);
}

.content-media-primary img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 5;
  object-fit: cover;
  border-radius: var(--radius-md);
}

@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .hero-content h1 {
    font-size: 30px;
  }

  .hero-media {
    order: -1;
  }
}

/* 服务级别菜单 */
.service-levels {
  padding: var(--space-xl) 0;
}

.service-levels .section-header {
  max-width: var(--container-width);
  margin: 0 auto var(--space-lg);
  padding: 0 var(--space-md);
}

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

.level-card {
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
}

.level-card h3 {
  font-size: 20px;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.level-scene {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}

.level-items {
  list-style: none;
  margin-bottom: var(--space-md);
  flex: 1;
}

.level-items li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 8px;
  color: var(--color-text-body);
}

.level-items li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent-soft);
  border-radius: 50%;
}

.level-link {
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 36px;
}

.level-link::after {
  content: "→";
  transition: transform var(--transition-base);
}

.level-link:hover::after {
  transform: translateX(4px);
}

@media (max-width: 768px) {
  .level-grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}

/* 能力分区预览 */
.capabilities-preview {
  background-color: var(--color-bg-card);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.capabilities-preview .section-header {
  max-width: var(--container-width);
  margin: 0 auto var(--space-lg);
  padding: 0 var(--space-md);
}

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

.capability-item {
  padding: var(--space-md);
  text-align: left;
}

.capability-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background-color: rgba(178, 58, 30, 0.1);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
  position: relative;
}

.capability-icon::before {
  content: "";
  width: 16px;
  height: 16px;
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  display: block;
}

.capability-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.capability-item p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.capability-item a {
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 36px;
}

.capability-item a::after {
  content: "→";
  transition: transform var(--transition-base);
}

.capability-item a:hover::after {
  transform: translateX(4px);
}

@media (max-width: 768px) {
  .capability-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
  }
}

@media (max-width: 480px) {
  .capability-grid {
    grid-template-columns: 1fr;
  }
}

/* 精选词条与分类目录 */
.insights-section {
  padding: var(--space-xl) 0;
}

.glossary-panel h2,
.topic-directory h2 {
  font-size: 22px;
  margin-bottom: var(--space-sm);
}

.directory-intro {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

.topic-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-text-body);
  min-height: 44px;
  text-align: center;
  transition: all var(--transition-base);
}

.topic-tag:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: rgba(178, 58, 30, 0.04);
}

@media (max-width: 768px) {
  .topic-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .topic-grid {
    grid-template-columns: 1fr;
  }
}

/* 任务记录预览 */
.records-preview {
  background-color: var(--color-bg-card);
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.records-preview .section-header {
  max-width: var(--container-width);
  margin: 0 auto var(--space-lg);
  padding: 0 var(--space-md);
}

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

.record-col {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.record-col h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.record-meta {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.record-col p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.record-col a {
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 36px;
}

.record-col a::after {
  content: "→";
  transition: transform var(--transition-base);
}

.record-col a:hover::after {
  transform: translateX(4px);
}

@media (max-width: 768px) {
  .record-columns {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}

/* 咨询流程引导 */
.consult-guide {
  padding: var(--space-xl) 0;
}

.consult-guide .section-header {
  max-width: var(--container-width);
  margin: 0 auto var(--space-lg);
  padding: 0 var(--space-md);
}

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

.consult-action {
  max-width: var(--container-width);
  margin: var(--space-lg) auto 0;
  padding: 0 var(--space-md);
  text-align: center;
}

/* ---------- 4.2 服务总览页 ---------- */
.service-chain-section,
.audience-scenes-section,
.deliverables-section {
  padding: var(--space-lg) 0;
}

.service-chain-section .section-header,
.audience-scenes-section .section-header,
.deliverables-section .section-header {
  max-width: var(--container-width);
  margin: 0 auto var(--space-lg);
  padding: 0 var(--space-md);
}

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

.chain-item {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  position: relative;
}

.chain-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: var(--space-sm);
  font-family: var(--font-serif);
}

.chain-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.chain-item p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .chain-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
  }
}

@media (max-width: 480px) {
  .chain-grid {
    grid-template-columns: 1fr;
  }
}

/* 服务对象与适用场景 */
.audience-col,
.scenes-col {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-md);
}

.audience-col h2,
.scenes-col h2 {
  font-size: 20px;
  margin-bottom: var(--space-sm);
}

.audience-col > p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}

.audience-list,
.scene-list {
  list-style: none;
}

.audience-list li,
.scene-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 10px;
  color: var(--color-text-body);
}

.audience-list li::before,
.scene-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent-soft);
  border-radius: 50%;
}

/* 交付物清单 */
.deliverables-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.deliverable-card {
  padding: var(--space-md);
}

.deliverable-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--color-accent);
}

.deliverable-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

.deliverable-figure {
  max-width: var(--container-width);
  margin: var(--space-lg) auto 0;
  padding: 0 var(--space-md);
}

.deliverable-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: var(--radius-md);
}

@media (max-width: 768px) {
  .deliverables-grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}

/* ---------- 4.3 能力分区页 ---------- */
.capability-nav {
  max-width: var(--container-width);
  margin: var(--space-md) auto 0;
  padding: 0 var(--space-md);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
  position: sticky;
  top: 80px;
  z-index: 50;
}

.cap-nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-text);
  min-height: 44px;
  text-align: center;
  transition: all var(--transition-base);
}

.cap-nav-link:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: rgba(178, 58, 30, 0.04);
}

@media (max-width: 768px) {
  .capability-nav {
    grid-template-columns: 1fr 1fr;
    position: static;
  }
}

@media (max-width: 480px) {
  .capability-nav {
    grid-template-columns: 1fr;
  }
}

/* 分区区块 */
.zone-block {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.zone-block:nth-child(even) {
  background-color: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.zone-text h2 {
  font-size: 24px;
  margin-bottom: var(--space-sm);
  color: var(--color-accent);
}

.zone-text > p {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}

.zone-text h3 {
  font-size: 17px;
  margin-bottom: var(--space-sm);
  color: var(--color-text);
}

.function-list,
.task-type-list,
.review-list {
  list-style: none;
  margin-bottom: var(--space-sm);
}

.function-list li,
.task-type-list li,
.review-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 10px;
  color: var(--color-text-body);
}

.function-list li::before,
.task-type-list li::before,
.review-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  background-color: var(--color-accent-soft);
  border-radius: 50%;
}

.step-list {
  list-style: none;
  counter-reset: step-counter;
  margin-bottom: var(--space-sm);
}

.step-list li {
  counter-increment: step-counter;
  position: relative;
  padding-left: 36px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 10px;
  color: var(--color-text-body);
}

.step-list li::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 13px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
}

.zone-media {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.zone-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-md);
}

@media (max-width: 768px) {
  .zone-block {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
    padding: var(--space-lg) var(--space-md);
  }

  .zone-media {
    order: -1;
  }
}

/* ---------- 4.4 资源配套页 ---------- */
.resource-media {
  max-width: var(--container-width);
  margin: var(--space-md) auto 0;
  padding: 0 var(--space-md);
}

.resource-media-inner {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.resource-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.resource-cards,
.mapping-table {
  padding: var(--space-xl) 0;
}

.resource-cards .section-head,
.mapping-table .section-head {
  max-width: var(--container-width);
  margin: 0 auto var(--space-lg);
  padding: 0 var(--space-md);
}

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

.resource-card {
  padding: var(--space-md);
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(178, 58, 30, 0.1);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
  position: relative;
}

.card-icon::before {
  content: "";
  width: 14px;
  height: 14px;
  border: 2px solid var(--color-accent);
  border-radius: 3px;
  display: block;
}

.resource-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.resource-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-sm);
}

.resource-card ul {
  list-style: none;
}

.resource-card ul li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 6px;
  color: var(--color-text-body);
}

.resource-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  background-color: var(--color-accent-soft);
  border-radius: 50%;
}

@media (max-width: 768px) {
  .resource-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
  }
}

@media (max-width: 480px) {
  .resource-grid {
    grid-template-columns: 1fr;
  }
}

.mapping-table .table-wrap {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0;
}

/* ---------- 4.5 任务记录页 ---------- */
.record-tabs {
  max-width: var(--container-width);
  margin: var(--space-md) auto 0;
  padding: 0 var(--space-md);
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.tab-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-text);
  min-height: 44px;
  transition: all var(--transition-base);
}

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

.records-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-lg);
  align-items: start;
}

.announcements,
.discussions {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg) var(--space-md);
}

.section-heading h2 {
  font-size: 22px;
  margin-bottom: 6px;
}

.section-heading p {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
}

/* 公告时间线 */
.timeline {
  list-style: none;
  position: relative;
  padding-left: 24px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-md);
}

.timeline-marker {
  position: absolute;
  left: -24px;
  top: 6px;
  width: 14px;
  height: 14px;
  background-color: var(--color-accent);
  border-radius: 50%;
  border: 3px solid var(--color-bg-card);
  box-sizing: content-box;
}

.timeline-content time {
  display: block;
  font-size: 13px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.timeline-content h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.timeline-content p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

.records-figure {
  margin-top: var(--space-md);
}

.records-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 8;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

/* 讨论列表 */
.discussion-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.discussion-card {
  padding: var(--space-sm);
}

.discussion-card h3 {
  font-size: 15px;
  margin-bottom: 6px;
}

.discussion-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .records-layout {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: var(--space-lg) var(--space-md);
  }
}

/* 指南编号列表 */
.guides {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md) var(--space-xl);
}

.guides .section-heading {
  margin-bottom: var(--space-md);
}

.guide-steps {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

.guide-step {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.guide-step .step-number {
  flex-shrink: 0;
  margin-bottom: 0;
}

.step-body h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

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

@media (max-width: 768px) {
  .guide-steps {
    grid-template-columns: 1fr;
  }
}

/* ---------- 4.6 热瓜手册页 ---------- */
.section-block {
  padding: var(--space-lg) 0;
}

.problem-categories .section-heading,
.self-help .section-heading,
.service-path .section-heading,
.faq-block .section-heading {
  max-width: var(--container-width);
  margin: 0 auto var(--space-lg);
  padding: 0 var(--space-md);
}

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

.category-card {
  padding: var(--space-md);
}

.category-card h3 {
  font-size: 17px;
  margin-bottom: var(--space-sm);
  color: var(--color-accent);
}

.category-card ul {
  list-style: none;
}

.category-card ul li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 8px;
  color: var(--color-text-body);
}

.category-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  background-color: var(--color-accent-soft);
  border-radius: 50%;
}

@media (max-width: 768px) {
  .category-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-sm);
  }
}

@media (max-width: 480px) {
  .category-grid {
    grid-template-columns: 1fr;
  }
}

/* 自助处理指南 */
.self-help {
  background-color: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.self-help .guide-steps {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.guide-figure {
  max-width: var(--container-width);
  margin: var(--space-lg) auto 0;
  padding: 0 var(--space-md);
}

.guide-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  border-radius: var(--radius-md);
}

/* 人工服务路径 */
.path-steps {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  grid-template-columns: repeat(3, 1fr);
}

.path-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: rgba(178, 58, 30, 0.1);
  border-radius: 50%;
  margin-bottom: var(--space-sm);
  position: relative;
}

.path-icon::before {
  content: "";
  width: 14px;
  height: 14px;
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  display: block;
}

.path-action {
  max-width: var(--container-width);
  margin: var(--space-lg) auto 0;
  padding: 0 var(--space-md);
  text-align: center;
}

@media (max-width: 768px) {
  .path-steps {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}

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

/* ---------- 4.7 咨询流程页 ---------- */
.content-primary {
  min-width: 0;
}

.steps-module,
.info-list-module,
.level-compare-module {
  margin-bottom: var(--space-xl);
}

.steps-module h2,
.info-list-module h2,
.level-compare-module h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.module-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.steps-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

.steps-list .step-item {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.steps-list .step-item .step-num {
  flex-shrink: 0;
  margin-bottom: 0;
}

.step-content {
  flex: 1;
}

.step-content h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.step-content p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .steps-list {
    grid-template-columns: 1fr;
  }
}

.process-figure {
  margin: var(--space-md) 0;
}

.process-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.info-col {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.info-col h3 {
  font-size: 17px;
  margin-bottom: var(--space-sm);
}

.info-col ul {
  list-style: none;
}

.info-col ul li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 8px;
  color: var(--color-text-body);
}

.info-col ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent-soft);
  border-radius: 50%;
}

@media (max-width: 768px) {
  .info-grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}

/* 服务级别对照 */
.level-table {
  min-width: 480px;
}

/* 侧栏 */
.sidebar-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  position: sticky;
  top: 90px;
}

.side-card,
.side-note {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.side-card h2,
.side-note h2 {
  font-size: 17px;
  margin-bottom: var(--space-sm);
}

.side-links {
  list-style: none;
}

.side-links li {
  margin-bottom: 8px;
}

.side-links li a {
  display: inline-block;
  padding: 6px 0;
  font-size: 14px;
  min-height: 36px;
  line-height: 1.4;
}

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

@media (max-width: 768px) {
  .sidebar-info {
    position: static;
  }
}

/* ---------- 4.8 纠错与建议页 ---------- */
.error-scope .container,
.submit-process .container,
.notes .container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.error-card {
  padding: var(--space-md);
}

.error-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--color-accent);
}

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

.error-card .card-note {
  font-size: 13px;
  color: var(--color-text-muted);
  background-color: rgba(232, 217, 198, 0.3);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 0;
}

@media (max-width: 768px) {
  .error-cards {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }
}

/* 纠错提交流程 */
.submit-process {
  background-color: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.process-steps {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

.process-steps li {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
}

.process-steps .step-num {
  flex-shrink: 0;
  margin-bottom: 0;
}

.process-steps .step-content h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

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

@media (max-width: 768px) {
  .process-steps {
    grid-template-columns: 1fr;
  }
}

.process-media {
  max-width: var(--container-width);
  margin: var(--space-lg) auto 0;
  padding: 0;
}

.process-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.submit-process .btn-primary {
  margin-top: var(--space-lg);
}

/* 反馈注意事项 */
.notes-list {
  list-style: none;
  max-width: var(--container-width);
  margin: 0 auto;
}

.notes-list li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: var(--space-sm);
  color: var(--color-text-body);
}

.notes-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent-soft);
  border-radius: 50%;
}

.notes-list strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ---------- 4.9 404 页 ---------- */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl) var(--space-md);
  flex: 1;
}

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

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

.error-content h1 {
  font-size: 28px;
  margin-bottom: var(--space-sm);
}

.error-lead {
  font-size: 16px;
  color: var(--color-text-body);
  margin-bottom: 8px;
}

.error-detail {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
}

.error-actions {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

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

/* 移动端导航 */
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding-top: 12px;
    padding-bottom: 12px;
  }

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

  .main-nav {
    order: 4;
    flex-basis: 100%;
    justify-content: flex-start;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    padding: var(--space-sm) 0;
    gap: 0;
  }

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

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

  .nav-list li a {
    display: block;
    padding: 12px 8px;
    font-size: 16px;
    border-bottom: 1px solid var(--color-border);
    width: 100%;
    min-height: 44px;
    line-height: 1.4;
  }

  .nav-list li:last-child a {
    border-bottom: none;
  }

  .header-action {
    order: 2;
    margin-left: auto;
  }

  .logo {
    order: 1;
  }

  .btn-consult {
    padding: 8px 14px;
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  :root {
    --space-xl: 48px;
    --space-lg: 32px;
    --space-md: 20px;
    --space-sm: 12px;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 22px;
  }

  h3 {
    font-size: 18px;
  }

  .hero-content h1 {
    font-size: 28px;
  }

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

  .header-inner {
    gap: var(--space-xs);
  }

  .logo-text {
    font-size: 20px;
  }

  .btn-consult {
    padding: 8px 12px;
    font-size: 13px;
  }

  .btn-consult .icon-consult {
    display: none;
  }

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

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

  .content-media-primary img {
    aspect-ratio: 16 / 8;
  }

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

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

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

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

  .capability-nav {
    grid-template-columns: 1fr;
  }

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

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

  .steps-row,
  .path-steps {
    grid-template-columns: 1fr;
  }

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

  .task-cards,
  .task-grid,
  .task-card-list {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

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

  .error-actions .btn-home,
  .error-actions .btn-service,
  .error-actions .btn-handbook {
    width: 100%;
  }

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

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-note {
    text-align: left;
  }
}