/* ============================================================
   91吃瓜官网 · 整站样式表
   设计方向：高端服务风 · 深灰蓝 + 低饱和青绿 + 浅灰背景
   ============================================================ */

/* ============================================================
   1. Base —— 基础变量、重置、全局元素
   ============================================================ */
:root {
  --color-text: #1F2937;
  --color-text-secondary: #6B7280;
  --color-accent: #0F766E;
  --color-accent-dark: #0B5D57;
  --color-bg: #F3F4F6;
  --color-card: #FFFFFF;
  --color-border: #D1D5DB;
  --color-text-light: #9CA3AF;

  --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;

  --container-width: 1200px;
  --container-padding: 24px;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;

  --shadow-sm: 0 1px 3px rgba(31, 41, 55, 0.06);
  --shadow-md: 0 4px 12px rgba(31, 41, 55, 0.08);
  --shadow-hover: 0 8px 24px rgba(31, 41, 55, 0.1);

  --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-family);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul,
ol {
  list-style: none;
}

svg {
  display: block;
}

/* ============================================================
   2. Layout —— 全站骨架容器
   ============================================================ */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
}

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

.site-main.inner-main {
  padding-top: 40px;
  padding-bottom: 72px;
}

.site-inner {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

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

.header-inner {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 32px;
}

/* 品牌 */
.brand-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  flex-shrink: 0;
  line-height: 1.3;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.5px;
}

.brand-tagline {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

/* 主导航 */
.main-nav {
  margin-left: auto;
}

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

.nav-list .nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition-base);
}

.nav-list .nav-link::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background-color: var(--color-accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition-base);
}

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

.nav-list .nav-link:hover::after,
.nav-list .nav-link.is-current::after {
  transform: scaleX(1);
}

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

/* 头部操作按钮区 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* 汉堡按钮 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-card);
  cursor: pointer;
  transition: border-color var(--transition-base), background-color var(--transition-base);
}

.nav-toggle:hover {
  border-color: var(--color-accent);
}

.toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle.is-active .toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-active .toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active .toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background-color: var(--color-card);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.footer-inner {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 56px var(--container-padding) 32px;
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 48px;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

.footer-brand-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 320px;
}

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

.footer-link-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-link {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

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

.footer-bottom {
  border-top: 1px solid var(--color-border);
}

.footer-bottom .footer-boundary,
.footer-bottom .footer-copyright {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 20px var(--container-padding);
  font-size: 13px;
  color: var(--color-text-light);
}

.footer-bottom .footer-boundary {
  padding-bottom: 4px;
  line-height: 1.6;
}

.footer-bottom .footer-copyright {
  padding-top: 4px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 28px;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

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

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

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

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

/* ---------- 页面标题区 ---------- */
.page-header {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 32px;
  padding: 0 var(--container-padding);
}

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

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

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base), box-shadow var(--transition-base);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

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

.btn-outline:hover {
  background-color: var(--color-accent);
  color: #fff;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}

/* ---------- Section 标题 ---------- */
.section-heading {
  margin-bottom: 40px;
}

.section-heading h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.35;
  margin-bottom: 10px;
}

.section-heading p {
  font-size: 15px;
  color: var(--color-text-secondary);
  max-width: 640px;
  line-height: 1.7;
}

/* ---------- 相关链接条 ---------- */
.related-links {
  width: 100%;
  max-width: var(--container-width);
  margin: 48px auto 0;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links-label {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-right: 4px;
}

.related-links-item {
  font-size: 14px;
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  transition: border-color var(--transition-base), color var(--transition-base);
}

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

/* ---------- 通用文章卡片 ---------- */
.article-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.article-figure {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-bg);
}

.article-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article-body {
  padding: 20px;
}

.article-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-accent);
  background-color: rgba(15, 118, 110, 0.08);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.article-body h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--color-text);
  margin-bottom: 8px;
}

.article-body p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.article-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
}

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

/* ---------- FAQ 条目 ---------- */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-card);
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  transition: background-color var(--transition-base);
}

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

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

.faq-item[open] summary {
  background-color: rgba(15, 118, 110, 0.04);
}

.faq-item[open] summary::after {
  content: '−';
  transform: rotate(180deg);
}

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

.faq-answer {
  padding: 16px 20px;
}

.faq-answer p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 10px;
}

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

.faq-answer a {
  font-weight: 500;
}

/* ---------- 滚动渐入（不影响初始可见性） ---------- */
.fade-in {
  opacity: 1;
  transform: none;
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   4. Pages —— 首页
   ============================================================ */
.home-main {
  padding-bottom: 0;
}

/* ---------- Hero ---------- */
.hero-section {
  background-color: var(--color-card);
  border-bottom: 1px solid var(--color-border);
}

.hero-container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 72px var(--container-padding) 72px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.hero-text h1 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-text);
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 480px;
}

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

.hero-visual {
  position: relative;
}

.hero-figure {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-bg);
  box-shadow: var(--shadow-md);
}

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

/* ---------- 核心服务矩阵 ---------- */
.service-grid-section {
  padding: 80px 0;
}

.service-grid-section .section-heading {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 40px;
  padding: 0 var(--container-padding);
}

.service-grid {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.service-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.service-card-featured {
  grid-column: span 2;
  background-color: var(--color-text);
  border-color: var(--color-text);
  color: #fff;
}

.service-card-featured .service-icon {
  background-color: rgba(255, 255, 255, 0.12);
}

.service-card-featured h3 {
  color: #fff;
}

.service-card-featured p {
  color: rgba(255, 255, 255, 0.75);
}

.service-card-featured .service-link {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}

.service-card-featured .service-link:hover {
  background-color: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: rgba(15, 118, 110, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.service-icon svg {
  width: 24px;
  height: 24px;
}

.service-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.4;
}

.service-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex-grow: 1;
}

.service-link {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

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

/* ---------- 适用场景 ---------- */
.scenario-section {
  padding: 80px 0;
  background-color: var(--color-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.scenario-container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
}

.scenario-intro h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.35;
  margin-bottom: 14px;
}

.scenario-intro p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.75;
}

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

.scenario-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.scenario-item:first-child {
  padding-top: 0;
}

.scenario-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.scenario-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: rgba(15, 118, 110, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}

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

.scenario-content p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ---------- 服务流程预览 ---------- */
.process-section {
  padding: 80px 0;
}

.process-section .section-heading {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 40px;
  padding: 0 var(--container-padding);
}

.process-steps {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.process-step {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
  transition: box-shadow var(--transition-base);
}

.process-step:hover {
  box-shadow: var(--shadow-hover);
}

.process-step .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}

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

.process-step p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.process-link-wrap {
  width: 100%;
  max-width: var(--container-width);
  margin: 36px auto 0;
  padding: 0 var(--container-padding);
  text-align: center;
}

/* ---------- 热点观察精选 ---------- */
.article-featured-section {
  padding: 80px 0;
  background-color: var(--color-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.article-featured-section .section-heading {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 40px;
  padding: 0 var(--container-padding);
}

.article-featured-grid {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.article-card-large {
  grid-row: span 2;
}

.article-card-large .article-figure {
  aspect-ratio: 16 / 10;
}

.article-card-large .article-body h3 {
  font-size: 20px;
  line-height: 1.4;
}

.article-card-large .article-body p {
  font-size: 15px;
}

/* ---------- FAQ 预览 ---------- */
.faq-preview-section {
  padding: 80px 0;
}

.faq-preview-container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}

.faq-preview-list h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
  line-height: 1.35;
}

.faq-preview-list .faq-item {
  margin-bottom: 12px;
}

.faq-preview-list .faq-item summary {
  padding: 14px 18px;
  font-size: 14px;
}

.faq-preview-list .faq-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.faq-preview-list .btn {
  margin-top: 16px;
}

.faq-preview-figure {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-bg);
  box-shadow: var(--shadow-md);
}

.faq-preview-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 合作引导 CTA ---------- */
.cta-banner {
  background-color: var(--color-text);
  padding: 64px 0;
}

.cta-container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  text-align: center;
}

.cta-container h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.35;
}

.cta-container p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 28px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.cta-banner .btn-primary {
  background-color: #fff;
  border-color: #fff;
  color: var(--color-text);
}

.cta-banner .btn-primary:hover {
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-text);
}

.cta-banner .btn-outline {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

.cta-banner .btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  color: #fff;
}

/* ============================================================
   5. Pages —— 热点观察（列表页）
   ============================================================ */

/* 页面标题与摘要 */
.page-title-inner {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 32px;
  padding: 0 var(--container-padding);
}

.page-summary {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 720px;
  margin-bottom: 12px;
}

.update-note {
  font-size: 13px;
  color: var(--color-text-light);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.update-note::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  flex-shrink: 0;
}

/* 文章列表 */
.article-list {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 56px;
  padding: 0 var(--container-padding);
}

.article-list-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}

.article-primary .section-title,
.article-secondary .section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-border);
}

.article-primary {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.article-primary .article-card.card-large {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 0;
}

.article-primary .article-card.card-large .article-media {
  height: 100%;
  min-height: 200px;
}

.article-media {
  overflow: hidden;
  background-color: var(--color-bg);
}

.article-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-large .article-media {
  aspect-ratio: 16 / 10;
}

.article-secondary {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.article-secondary .article-card.card-small {
  display: grid;
  grid-template-columns: 1fr;
  transition: box-shadow var(--transition-base);
}

.article-secondary .article-card.card-small:hover {
  box-shadow: var(--shadow-hover);
}

.article-secondary .article-body {
  padding: 18px 20px;
}

.article-secondary .article-body h3 {
  font-size: 16px;
}

.article-secondary .article-body p {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 观察方法与来源说明 */
.method-notes {
  background-color: var(--color-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 56px 0;
}

.method-notes-inner {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.method-notes-inner .section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.method-intro {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  max-width: 680px;
}

.method-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.method-item {
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.method-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.method-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

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

.source-boundary {
  font-size: 13px;
  color: var(--color-text-light);
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  line-height: 1.7;
}

/* 相关入口 */
.related-entry {
  padding: 56px 0 0;
}

.related-entry-inner {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.related-text {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-right: auto;
}

/* ============================================================
   6. Pages —— 服务内容
   ============================================================ */
.page-title-area {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 40px;
  padding: 0 var(--container-padding);
}

.page-title-area .page-summary {
  margin-bottom: 0;
}

/* 服务矩阵详情 */
.service-detail-grid {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 56px;
  padding: 0 var(--container-padding);
  display: flex;
  flex-direction: column;
}

.service-detail-row {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
  align-items: start;
}

.service-detail-row:first-child {
  padding-top: 0;
}

.service-detail-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.service-detail-intro {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.service-detail-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  object-fit: cover;
  background-color: var(--color-bg);
}

.service-detail-head h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 6px;
}

.service-detail-tagline {
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
}

.service-detail-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.service-detail-points {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.points-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.points-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.points-list li {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
}

.points-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background-color: var(--color-accent);
}

/* 交付形式 */
.delivery-note {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.delivery-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.delivery-col {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.delivery-col h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
}

.delivery-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.delivery-list li {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  padding-left: 24px;
  position: relative;
}

.delivery-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.boundary-note {
  font-size: 13px;
  color: var(--color-text-light);
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  line-height: 1.7;
}

/* ============================================================
   7. Pages —— 合作指南
   ============================================================ */
.page-title-block {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 40px;
  padding: 0 var(--container-padding);
}

.page-title-block .page-summary {
  margin-bottom: 0;
}

/* 四步流程 */
.process-detail {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 56px;
  padding: 0 var(--container-padding);
}

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

.process-step-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.process-step-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.process-step-image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background-color: var(--color-bg);
}

.process-step-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.process-step-body {
  padding: 24px;
}

.process-step-body .step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 14px;
}

.step-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 10px;
  line-height: 1.4;
}

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

.step-output {
  font-size: 13px;
  color: var(--color-accent);
  background-color: rgba(15, 118, 110, 0.06);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  line-height: 1.6;
}

/* 准备清单 */
.preparation {
  background-color: var(--color-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 56px 0;
}

.preparation-inner {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.preparation-col .section-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
}

.preparation-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.preparation-item {
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 18px 20px;
}

.item-label {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

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

/* 帮助入口 */
.help-entry {
  padding: 56px 0 0;
}

.help-entry-inner {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.help-entry-text {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-right: auto;
}

.help-entry-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ============================================================
   8. Pages —— 公开信息
   ============================================================ */
.page-title-section {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 40px;
  padding: 0 var(--container-padding);
}

.page-title-section .page-summary {
  margin-bottom: 0;
}

/* 更新说明 */
.update-section {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 48px;
  padding: 0 var(--container-padding);
}

.update-section > h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.update-section .section-intro {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  max-width: 680px;
}

.update-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.update-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.update-number {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.update-content h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.update-content p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* 分隔配图 */
.section-divider-figure {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 48px;
  padding: 0 var(--container-padding);
  aspect-ratio: 21 / 6;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background-color: var(--color-bg);
}

.section-divider-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 边界声明 */
.boundary-section {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.boundary-section > h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.boundary-section .section-intro {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  max-width: 680px;
}

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

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

.boundary-col h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.boundary-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.boundary-list li {
  display: flex;
  gap: 10px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.boundary-list li strong {
  color: var(--color-text);
  font-weight: 600;
  flex-shrink: 0;
}

/* 相关链接 */
.related-links aside.related-links {
  display: block;
}

.related-links aside.related-links h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
}

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

.related-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.related-link:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.related-link-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}

.related-link-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============================================================
   9. Pages —— 常见问题
   ============================================================ */
.page-title-wrap {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 40px;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.page-title-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 640px;
}

.page-title-figure {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-bg);
}

.page-title-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* FAQ 分组 */
.faq-groups {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 56px;
  padding: 0 var(--container-padding);
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.faq-group-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-border);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 帮助入口 */
.help-entry-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  margin-bottom: 32px;
}

.help-entry-grid {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.help-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

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

.help-card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.help-card-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex-grow: 1;
}

.help-card-arrow {
  font-size: 18px;
  color: var(--color-accent);
  font-weight: 700;
}

/* ============================================================
   10. Pages —— 联系目录
   ============================================================ */
.page-title-inner {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 24px;
  padding: 0 var(--container-padding);
}

.page-title-inner .page-summary {
  margin-bottom: 0;
}

.page-title-figure {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 48px;
  padding: 0 var(--container-padding);
  aspect-ratio: 21 / 7;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--color-bg);
}

.page-title-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 栏目索引 */
.site-index-grid {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 56px;
  padding: 0 var(--container-padding);
}

.site-index-grid .section-heading {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.site-index-grid .section-intro {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.index-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.index-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

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

.index-card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.index-card-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex-grow: 1;
}

.index-card-arrow {
  font-size: 18px;
  color: var(--color-accent);
  font-weight: 700;
}

/* 反馈与合作引导 */
.contact-guide {
  background-color: var(--color-card);
  border-top: 1px solid var(--color-border);
  padding: 56px 0;
}

.contact-guide .section-heading {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto 32px;
  padding: 0 var(--container-padding);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
}

.contact-guide-grid {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}

.guide-col {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.guide-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

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

.guide-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.guide-list li strong {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}

.guide-list li p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

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

.guide-note p {
  font-size: 13px;
  color: var(--color-text-light);
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
  line-height: 1.7;
}

/* ============================================================
   11. Pages —— 404
   ============================================================ */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 80px 24px;
}

.error-section {
  text-align: center;
  max-width: 520px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-section h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

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

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

/* ---------- 992px ---------- */
@media (max-width: 992px) {
  :root {
    --container-padding: 20px;
  }

  .header-inner {
    gap: 16px;
  }

  .main-nav {
    margin-left: auto;
  }

  .nav-list .nav-link {
    padding: 8px 10px;
    font-size: 14px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-brand-desc {
    max-width: 100%;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 56px var(--container-padding);
  }

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

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

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

  .service-card-featured {
    grid-column: span 2;
  }

  .scenario-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .article-featured-grid {
    grid-template-columns: 1fr;
  }

  .article-card-large {
    grid-row: auto;
  }

  .faq-preview-container {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .article-list-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .service-detail-row {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .preparation-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .related-link-list {
    grid-template-columns: 1fr;
  }

  .page-title-wrap {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .help-entry-grid {
    grid-template-columns: 1fr;
  }

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

  .contact-guide-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

/* ---------- 768px ---------- */
@media (max-width: 768px) {
  .header-inner {
    min-height: 64px;
    flex-wrap: wrap;
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .brand-link {
    margin-right: auto;
  }

  .main-nav {
    order: 3;
    width: 100%;
    margin-left: 0;
  }

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

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

  .nav-list .nav-link {
    padding: 12px 8px;
    font-size: 15px;
    border-radius: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-list .nav-link::after {
    display: none;
  }

  .nav-list .nav-link.is-current {
    color: var(--color-accent);
    background-color: rgba(15, 118, 110, 0.04);
  }

  .nav-toggle {
    display: flex;
    margin-left: 8px;
  }

  .header-actions .btn-sm {
    display: none;
  }

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

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

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

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

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

  .service-card-featured {
    grid-column: span 1;
  }

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

  .article-primary .article-card.card-large {
    grid-template-columns: 1fr;
  }

  .card-large .article-media {
    aspect-ratio: 16 / 9;
  }

  .article-secondary .article-card.card-small {
    grid-template-columns: 1fr;
  }

  .article-secondary .article-card.card-small .article-media {
    display: none;
  }

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

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

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .cta-container h2 {
    font-size: 24px;
  }

  .related-entry-inner,
  .help-entry-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .related-text,
  .help-entry-text {
    margin-right: 0;
  }
}

/* ---------- 576px ---------- */
@media (max-width: 576px) {
  :root {
    --container-padding: 16px;
  }

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

  .hero-container {
    padding: 40px var(--container-padding);
  }

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

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

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

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

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

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

  .footer-inner {
    padding-top: 40px;
    padding-bottom: 24px;
  }

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

  .method-item {
    flex-direction: column;
  }

  .update-item {
    flex-direction: column;
    gap: 12px;
  }

  .delivery-col {
    padding: 24px;
  }

  .boundary-col {
    padding: 24px;
  }

  .help-card {
    padding: 24px;
  }

  .index-card {
    padding: 24px;
  }

  .guide-col {
    padding: 24px;
  }
}