/* =========================================================
   58吃瓜网 - 全站样式表
   设计方向：高端服务风 · 低饱和绿强调 · 精细间距
   ========================================================= */

/* =========================================================
   1. Base — 基础变量与全局重置
   ========================================================= */
:root {
  --color-text: #1f2329;
  --color-text-secondary: #5a6472;
  --color-bg: #f7f8fa;
  --color-accent: #2c6e5c;
  --color-accent-dark: #245a4b;
  --color-accent-light: #3a8a73;
  --color-border: #e5e8eb;
  --color-card: #ffffff;
  --color-header-bg: #ffffff;
  --color-footer-bg: #2b3138;
  --color-footer-text: #c8cdd4;
  --color-footer-heading: #f0f2f5;

  --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;

  --container-width: 1200px;
  --header-height: 72px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 8px;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;

  --shadow-card: 0 1px 3px rgba(31, 35, 41, 0.06);
  --shadow-hover: 0 4px 12px rgba(31, 35, 41, 0.1);

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

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

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

body {
  font-family: var(--font-sans);
  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-fast);
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
}

/* =========================================================
   2. Layout — 全站布局骨架
   ========================================================= */

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

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

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

.brand-name {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.5px;
}

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

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

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

.nav-list li {
  position: relative;
}

.nav-list a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-list a:hover {
  color: var(--color-accent);
  background-color: rgba(44, 110, 92, 0.06);
}

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

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

/* --- 主内容 --- */
.site-main {
  min-height: 480px;
}

.home-main {
  padding-bottom: var(--space-2xl);
}

.inner-main {
  padding: var(--space-xl) 0 var(--space-2xl);
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- 面包屑 --- */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

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

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

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

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

/* --- 页脚 --- */
.site-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding-top: var(--space-xl);
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px var(--space-lg);
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: var(--space-xl);
}

.footer-brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-footer-heading);
  margin-bottom: var(--space-sm);
}

.footer-tagline {
  font-size: 14px;
  color: var(--color-footer-text);
  line-height: 1.6;
  max-width: 280px;
}

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

.footer-group h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-footer-heading);
  margin-bottom: var(--space-md);
}

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

.footer-group li {
  margin-bottom: var(--space-sm);
}

.footer-group a {
  font-size: 14px;
  color: var(--color-footer-text);
  transition: color var(--transition-fast);
}

.footer-group a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-md) 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(200, 205, 212, 0.7);
}

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

/* --- 区块标题 --- */
.section-heading {
  margin-bottom: var(--space-xl);
}

.section-heading h2 {
  font-size: 28px;
  margin-bottom: var(--space-sm);
}

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

/* --- 按钮 --- */
.btn-primary {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--color-accent);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent);
  background-color: transparent;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.btn-secondary:hover {
  background-color: rgba(44, 110, 92, 0.06);
  color: var(--color-accent-dark);
}

/* --- 文本链接 --- */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-accent);
  transition: gap var(--transition-fast);
}

.text-link:hover {
  gap: 10px;
  color: var(--color-accent-dark);
}

/* --- FAQ 折叠 --- */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-card);
  margin-bottom: var(--space-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item[open] {
  border-color: rgba(44, 110, 92, 0.3);
}

.faq-item summary {
  padding: 18px 24px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color var(--transition-fast);
}

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

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

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

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

.faq-item p {
  padding: 0 24px 18px;
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

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

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

figcaption {
  font-size: 13px;
  color: var(--color-text-secondary);
  text-align: center;
  padding-top: var(--space-sm);
  line-height: 1.6;
}

/* --- 图片 hover 微缩放 --- */
figure img {
  transition: transform var(--transition-base);
}

figure:hover img {
  transform: scale(1.02);
}

/* --- 滚动出现动画（增强，不影响初始可见） --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-section,
.service-preview,
.problem-solution,
.steps-and-quality,
.prep-and-business,
.faq-preview,
.contact-cta,
.content-section {
  animation: fadeInUp 0.6s ease both;
}

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

/* --- Hero 首屏 --- */
.hero-section {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-xl);
  align-items: center;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-2xl) 24px var(--space-xl);
}

.hero-slogan {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
  background-color: rgba(44, 110, 92, 0.08);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-lg);
}

.hero-content h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: var(--space-lg);
}

.hero-intro {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.hero-anchors {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero-anchors span {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.hero-anchors a {
  font-size: 14px;
  font-weight: 500;
}

.hero-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow-card);
}

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

.hero-figure figcaption {
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-card);
}

/* --- 服务矩阵预览 --- */
.service-preview {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-2xl) 24px;
}

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

.service-card {
  background-color: var(--color-card);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base);
}

.service-card:hover {
  box-shadow: var(--shadow-hover);
}

.service-card figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 10;
  margin-bottom: var(--space-md);
}

.service-card h3 {
  font-size: 18px;
  margin-bottom: var(--space-sm);
}

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

.service-card a {
  font-size: 14px;
  font-weight: 500;
}

/* --- 行业问题与适用服务 --- */
.problem-solution {
  background-color: var(--color-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-2xl) 0;
}

.problem-solution .section-heading {
  max-width: var(--container-width);
  margin: 0 auto var(--space-xl);
  padding: 0 24px;
}

.problem-list {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

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

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

.problem-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.solution-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
  background-color: rgba(44, 110, 92, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-sm);
}

/* --- 实施步骤与质量检查 --- */
.steps-and-quality {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-2xl) 24px;
}

.two-column-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.steps-column h3,
.quality-column h3 {
  font-size: 20px;
  margin-bottom: var(--space-lg);
}

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

.steps-list li {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

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

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: rgba(44, 110, 92, 0.1);
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.step-text {
  font-size: 15px;
  line-height: 1.7;
}

.quality-list {
  list-style: none;
}

.quality-list li {
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  background-color: var(--color-card);
}

.quality-list h4 {
  font-size: 15px;
  margin-bottom: var(--space-xs);
}

.quality-list p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* --- 到店准备与营业说明 --- */
.prep-and-business {
  background-color: var(--color-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-2xl) 0;
}

.prep-and-business .section-heading {
  max-width: var(--container-width);
  margin: 0 auto var(--space-xl);
  padding: 0 24px;
}

.info-block-grid {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

.info-block {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  background-color: var(--color-bg);
  transition: box-shadow var(--transition-base);
}

.info-block:hover {
  box-shadow: var(--shadow-hover);
}

.info-block h3 {
  font-size: 19px;
  margin-bottom: var(--space-sm);
}

.info-block p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

/* --- FAQ 预览 --- */
.faq-preview {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-2xl) 24px;
}

.faq-list {
  margin-bottom: var(--space-lg);
}

/* --- 联系 CTA --- */
.contact-cta {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--space-2xl) 24px;
}

.cta-content {
  background-color: var(--color-accent);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
}

.cta-content h2 {
  font-size: 26px;
  color: #ffffff;
  margin-bottom: var(--space-sm);
}

.cta-content p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-lg);
}

.cta-content .btn-primary {
  background-color: #ffffff;
  color: var(--color-accent);
}

.cta-content .btn-primary:hover {
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-accent-dark);
}

/* =========================================================
   5. Pages — 内页通用
   ========================================================= */

/* --- 内页布局骨架 --- */
.page-layout {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: var(--space-xl);
  align-items: start;
}

.page-content {
  min-width: 0;
}

.page-header {
  margin-bottom: var(--space-lg);
}

.page-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.4;
}

.page-title-block {
  margin-bottom: var(--space-xl);
}

.page-title-block .page-intro,
.page-title-block .page-lead,
.page-description {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 720px;
}

/* --- 内页侧栏 --- */
.page-aside,
.sidebar,
.sidebar-area {
  min-width: 0;
}

.aside-block,
.aside-card,
.sidebar-block,
.sidebar-card,
.sidebar-inner {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.aside-block h2,
.aside-card h2,
.sidebar-block h2,
.sidebar-card h2,
.sidebar-inner h2 {
  font-size: 16px;
  font-weight: 600;
  padding-bottom: var(--space-sm);
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.aside-nav,
.aside-links,
.sidebar-nav,
.sidebar-links,
.sidebar-nav ul {
  list-style: none;
}

.aside-nav li,
.aside-links li,
.sidebar-nav li,
.sidebar-links li {
  margin-bottom: var(--space-xs);
}

.aside-nav a,
.aside-links a,
.sidebar-nav a,
.sidebar-links a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.aside-nav a:hover,
.aside-links a:hover,
.sidebar-nav a:hover,
.sidebar-links a:hover {
  background-color: rgba(44, 110, 92, 0.06);
  color: var(--color-accent);
}

.sidebar-note {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.sidebar-note p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

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

.service-matrix {
  margin-bottom: var(--space-2xl);
}

.service-matrix h2,
.problem-solution h2,
.implement-steps h2,
.quality-checks h2 {
  font-size: 24px;
  margin-bottom: var(--space-sm);
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  max-width: 680px;
}

.service-group {
  margin-bottom: var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-card);
  overflow: hidden;
}

.service-group-head {
  padding: var(--space-lg);
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.service-group-head h3 {
  font-size: 18px;
  color: var(--color-accent);
}

.service-group-head p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}

.service-items {
  padding: var(--space-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.service-item {
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.service-item:hover {
  background-color: var(--color-bg);
}

.service-item h4 {
  font-size: 15px;
  margin-bottom: var(--space-xs);
}

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

/* --- 服务页问题对应 --- */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

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

.problem-card h3 {
  font-size: 16px;
  margin-bottom: var(--space-sm);
}

.problem-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.problem-card .solution-tag {
  margin-top: var(--space-sm);
}

/* --- 实施步骤 --- */
.steps-list .step-item {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.steps-list .step-item:last-child {
  border-bottom: none;
}

.step-item .step-num {
  flex-shrink: 0;
}

.step-item h4 {
  font-size: 16px;
  margin-bottom: var(--space-xs);
}

.step-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* --- 质量检查 --- */
.quality-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.quality-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.quality-item h3 {
  font-size: 16px;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.quality-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* =========================================================
   7. Pages — 合作流程页
   ========================================================= */

.main-content {
  min-width: 0;
}

.process-overview {
  margin-bottom: var(--space-xl);
}

.process-overview h2 {
  font-size: 24px;
  margin-bottom: var(--space-sm);
}

.process-overview p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.process-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 7;
  margin-bottom: var(--space-lg);
}

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

.process-steps {
  margin-bottom: var(--space-2xl);
}

.process-steps h2 {
  font-size: 24px;
  margin-bottom: var(--space-lg);
}

.process-step {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.step-header {
  border-right: 1px solid var(--color-border);
  padding-right: var(--space-lg);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.step-header h3 {
  font-size: 18px;
  margin-bottom: var(--space-xs);
}

.step-duration {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.step-detail p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.step-input,
.step-output {
  font-size: 14px;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xs);
}

.step-input strong,
.step-output strong {
  color: var(--color-text);
}

.step-action {
  font-size: 14px;
  color: var(--color-accent);
  font-weight: 500;
  margin-top: var(--space-sm);
}

.discussion-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 8;
  margin: var(--space-xl) 0;
}

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

/* --- 质量检查清单 --- */
.quality-checklist {
  margin-bottom: var(--space-2xl);
}

.quality-checklist h2 {
  font-size: 24px;
  margin-bottom: var(--space-sm);
}

.quality-checklist p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.checklist {
  list-style: none;
}

.checklist li {
  padding: var(--space-md);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
  font-size: 15px;
  line-height: 1.7;
}

.checklist li strong {
  color: var(--color-accent);
  margin-right: var(--space-xs);
}

/* --- 流程 FAQ 预览 --- */
.process-faq-preview h2 {
  font-size: 24px;
  margin-bottom: var(--space-sm);
}

.process-faq-preview > p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.process-faq-preview > p a {
  font-weight: 500;
}

.faq-mini-list {
  margin-top: var(--space-md);
}

/* =========================================================
   8. Pages — 到店准备页
   ========================================================= */

.content-area {
  min-width: 0;
}

.material-list-section {
  margin-bottom: var(--space-2xl);
}

.material-list-section h2,
.demand-template-section h2,
.communication-methods-section h2,
.faq-links-section h2 {
  font-size: 24px;
  margin-bottom: var(--space-sm);
}

.section-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 8;
  margin: var(--space-lg) 0;
}

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

.material-list-section > p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

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

.material-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.material-item h3 {
  font-size: 16px;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

.material-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.material-item p:first-of-type {
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

/* --- 需求模板 --- */
.template-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

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

.template-card h3 {
  font-size: 16px;
  margin-bottom: var(--space-sm);
  position: relative;
  padding-left: var(--space-md);
}

.template-card h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 4px;
  height: 16px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.template-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* --- 沟通方式 --- */
.method-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.method-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.method-item h3 {
  font-size: 16px;
  margin-bottom: var(--space-sm);
}

.method-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* =========================================================
   9. Pages — 营业说明页
   ========================================================= */

.content-section {
  margin-bottom: var(--space-2xl);
}

.content-section h2 {
  font-size: 24px;
  margin-bottom: var(--space-sm);
}

.hours-list,
.response-list,
.scope-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.hours-item,
.response-item,
.scope-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.hours-item h3,
.response-item h3,
.scope-item h3 {
  font-size: 16px;
  margin-bottom: var(--space-sm);
}

.hours-status {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

.hours-item:nth-child(1) .hours-status {
  color: var(--color-accent);
  background-color: rgba(44, 110, 92, 0.08);
}

.hours-item:nth-child(2) .hours-status {
  color: #8a6d3b;
  background-color: rgba(138, 109, 59, 0.08);
}

.hours-item:nth-child(3) .hours-status {
  color: var(--color-text-secondary);
  background-color: rgba(90, 100, 114, 0.08);
}

.hours-item p,
.response-item p,
.scope-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* --- 边界说明 --- */
.boundary-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.boundary-list li {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  position: relative;
  padding-left: 40px;
}

.boundary-list li::before {
  content: "!";
  position: absolute;
  left: 14px;
  top: 16px;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-accent);
  background-color: rgba(44, 110, 92, 0.08);
  border-radius: 50%;
}

/* --- 相关链接 --- */
.related-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: var(--space-md);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-right: var(--space-sm);
}

.related-links-item {
  font-size: 14px;
  padding: 4px 12px;
  background-color: var(--color-bg);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast);
}

.related-links-item:hover {
  background-color: rgba(44, 110, 92, 0.08);
}

/* =========================================================
   10. Pages — 常见问题页
   ========================================================= */

.layout-shell {
  width: 100%;
}

.faq-section {
  margin-bottom: var(--space-2xl);
}

.faq-section h2 {
  font-size: 24px;
  margin-bottom: var(--space-sm);
}

.section-intro {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.faq-answer {
  padding: 0 24px 18px;
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.aside-figure {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

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

/* =========================================================
   11. Pages — 联系入口页
   ========================================================= */

.content-media-inline {
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 7;
  margin-bottom: var(--space-xl);
}

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

.contact-path-section,
.pre-contact-section,
.feedback-section,
.contact-faq-section {
  margin-bottom: var(--space-2xl);
}

.contact-path-section h2,
.pre-contact-section h2,
.feedback-section h2,
.contact-faq-section h2 {
  font-size: 24px;
  margin-bottom: var(--space-sm);
}

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

.path-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.path-item h3 {
  font-size: 16px;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.path-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.path-note {
  font-size: 13px;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-sm);
}

/* --- 沟通前准备 --- */
.check-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.check-list li {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.check-list h3 {
  font-size: 15px;
  margin-bottom: var(--space-xs);
  position: relative;
  padding-left: 24px;
}

.check-list h3::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.check-list p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* --- 反馈处理 --- */
.feedback-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.feedback-item {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

.feedback-item h3 {
  font-size: 16px;
  margin-bottom: var(--space-sm);
}

.feedback-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* =========================================================
   12. Pages — 404 页面
   ========================================================= */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: var(--space-2xl) 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: var(--space-md);
}

.error-section h1 {
  font-size: 24px;
  margin-bottom: var(--space-md);
}

.error-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.btn-return {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  background-color: var(--color-accent);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.btn-return:hover {
  background-color: var(--color-accent-dark);
  color: #ffffff;
}

/* =========================================================
   13. Responsive — 响应式适配（平板与手机）
   ========================================================= */

/* --- 平板（≤1024px） --- */
@media (max-width: 1024px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

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

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: var(--space-lg);
  }

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

  .problem-grid,
  .quality-list {
    grid-template-columns: 1fr 1fr;
  }

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

  .step-header {
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding-right: 0;
    padding-bottom: var(--space-md);
  }
}

/* --- 手机（≤768px） --- */
@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
  }

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

  .nav-list {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background-color: var(--color-header-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 12px rgba(31, 35, 41, 0.08);
    padding: var(--space-sm) 16px;
    display: none;
  }

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

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

  .nav-list a {
    padding: 12px 16px;
    font-size: 16px;
  }

  .nav-list a.is-current::after {
    display: none;
  }

  /* 首页 hero */
  .hero-section {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    padding: var(--space-xl) 16px var(--space-lg);
  }

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

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

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    text-align: center;
  }

  .hero-anchors {
    gap: var(--space-sm);
  }

  /* 首页服务矩阵 */
  .service-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .service-preview,
  .steps-and-quality,
  .faq-preview,
  .contact-cta {
    padding-left: 16px;
    padding-right: 16px;
  }

  /* 问题列表 */
  .problem-list {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: 0 16px;
  }

  .problem-solution .section-heading {
    padding: 0 16px;
  }

  /* 双栏 */
  .two-column-layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  /* 信息块 */
  .info-block-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
    padding: 0 16px;
  }

  .prep-and-business .section-heading {
    padding: 0 16px;
  }

  .cta-content {
    padding: var(--space-lg) var(--space-md);
  }

  /* 内页布局 */
  .inner-main {
    padding: var(--space-lg) 0 var(--space-xl);
  }

  .page-layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    padding: 0 16px;
  }

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

  /* 侧栏在正文之后 */
  .page-aside,
  .sidebar,
  .sidebar-area {
    order: 2;
  }

  /* 服务页 */
  .service-matrix h2,
  .problem-solution h2,
  .implement-steps h2,
  .quality-checks h2,
  .process-overview h2,
  .process-steps h2,
  .quality-checklist h2,
  .process-faq-preview h2,
  .material-list-section h2,
  .demand-template-section h2,
  .communication-methods-section h2,
  .faq-links-section h2,
  .content-section h2,
  .faq-section h2,
  .contact-path-section h2,
  .pre-contact-section h2,
  .feedback-section h2,
  .contact-faq-section h2 {
    font-size: 20px;
  }

  .problem-grid,
  .quality-list {
    grid-template-columns: 1fr;
  }

  .material-list,
  .template-grid,
  .method-list,
  .hours-list,
  .response-list,
  .scope-list,
  .boundary-list,
  .contact-path-list,
  .check-list,
  .feedback-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .process-figure,
  .discussion-figure,
  .section-figure,
  .content-media-inline {
    aspect-ratio: 16 / 10;
  }

  .process-step {
    padding: var(--space-md);
  }

  .related-links {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  /* 页脚 */
  .footer-inner {
    padding: 0 16px var(--space-md);
  }

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

  .footer-bottom {
    padding: var(--space-sm) 16px;
  }

  /* 404 */
  .error-code {
    font-size: 56px;
  }
}

/* --- 小屏手机（≤390px） --- */
@media (max-width: 390px) {
  .footer-links {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

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

  .hero-slogan {
    font-size: 13px;
  }

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

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

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

  .faq-item p,
  .faq-answer {
    padding: 0 16px 14px;
    font-size: 14px;
  }

  .service-card,
  .problem-item,
  .info-block,
  .material-item,
  .template-card,
  .method-item,
  .hours-item,
  .response-item,
  .scope-item,
  .boundary-list li,
  .path-item,
  .check-list li,
  .feedback-item {
    padding: var(--space-md);
  }

  .btn-primary,
  .btn-secondary {
    padding: 10px 20px;
    font-size: 14px;
  }
}