/* ==========================================================================
   base — 全局基础样式
   ========================================================================== */

*,
*::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: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: #1f3a3a;
  background-color: #ffffff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: #2f6f6a;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #245550;
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.3;
  color: #1f3a3a;
}

h1 {
  font-size: 32px;
  font-weight: 700;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 0.8em;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ==========================================================================
   layout — 全站骨架布局
   ========================================================================== */

.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: #ffffff;
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

.site-header {
  width: 100%;
  background-color: #ffffff;
  border-bottom: 1px solid #dce8e6;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-link {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: #1f3a3a;
  line-height: 1.3;
}

.brand-slogan {
  font-size: 12px;
  color: #7a8b89;
  line-height: 1.4;
}

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

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

.nav-link {
  display: inline-block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: #1f3a3a;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-link:hover {
  background-color: #f5f7f6;
  color: #2f6f6a;
}

.nav-link.is-current {
  color: #2f6f6a;
  background-color: #dce8e6;
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.header-action-btn {
  display: inline-block;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: #2f6f6a;
  border: 1px solid #dce8e6;
  border-radius: 4px;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.header-action-btn:hover {
  background-color: #f5f7f6;
  border-color: #2f6f6a;
}

.header-action-btn.header-action-primary {
  background-color: #2f6f6a;
  color: #ffffff;
  border-color: #2f6f6a;
}

.header-action-btn.header-action-primary:hover {
  background-color: #245550;
  border-color: #245550;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  border: 1px solid #dce8e6;
}

.menu-toggle:hover {
  background-color: #f5f7f6;
}

.menu-icon {
  display: block;
  width: 20px;
  height: 16px;
  position: relative;
}

.menu-icon::before,
.menu-icon::after,
.menu-icon span {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background-color: #1f3a3a;
  position: absolute;
  left: 0;
  transition: transform 0.2s ease, top 0.2s ease, bottom 0.2s ease;
}

.menu-icon::before {
  top: 0;
}

.menu-icon span {
  top: 7px;
}

.menu-icon::after {
  bottom: 0;
}

.menu-toggle[aria-expanded="true"] .menu-icon::before {
  top: 7px;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-icon span {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-icon::after {
  bottom: 7px;
  transform: rotate(-45deg);
}

/* ==========================================================================
   layout — 页脚
   ========================================================================== */

.site-footer {
  width: 100%;
  background-color: #f5f7f6;
  border-top: 1px solid #dce8e6;
  margin-top: auto;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
}

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

.footer-links a {
  font-size: 14px;
  color: #2f6f6a;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #245550;
  text-decoration: underline;
}

.footer-feedback .footer-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 500;
  color: #2f6f6a;
  text-decoration: underline;
}

.footer-feedback .footer-link:hover {
  color: #245550;
}

.footer-bottom {
  border-top: 1px solid #dce8e6;
  padding-top: 20px;
  text-align: center;
}

.copyright {
  font-size: 13px;
  color: #7a8b89;
  margin: 0;
}

/* ==========================================================================
   layout — 面包屑
   ========================================================================== */

.breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: 14px;
  color: #7a8b89;
}

.breadcrumb a {
  color: #2f6f6a;
  font-size: 14px;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb-sep {
  margin: 0 8px;
  color: #7a8b89;
}

.breadcrumb-current {
  color: #1f3a3a;
  font-weight: 500;
}

/* ==========================================================================
   layout — 内页统一标题区
   ========================================================================== */

.inner-main {
  padding-bottom: 64px;
}

.page-header {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 8px;
}

.page-title {
  font-size: 32px;
  font-weight: 700;
  color: #1f3a3a;
  margin: 0;
}

.page-title-area {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 24px 24px;
}

.page-lead,
.page-intro,
.page-title-desc,
.page-heading-desc {
  font-size: 16px;
  color: #7a8b89;
  line-height: 1.8;
  max-width: 720px;
  margin: 0;
}

/* ==========================================================================
   components — 按钮
   ========================================================================== */

.btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: 4px;
  text-align: center;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  background-color: #2f6f6a;
  color: #ffffff;
  border: 1px solid #2f6f6a;
  border-radius: 4px;
  text-align: center;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}

.btn-primary:hover {
  background-color: #245550;
  border-color: #245550;
  color: #ffffff;
}

.btn-secondary {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  background-color: transparent;
  color: #2f6f6a;
  border: 1px solid #2f6f6a;
  border-radius: 4px;
  text-align: center;
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  background-color: #f5f7f6;
  color: #245550;
}

/* ==========================================================================
   components — 通用区块标题
   ========================================================================== */

.section-header {
  max-width: 1200px;
  margin: 0 auto 40px;
  padding: 0 24px;
  text-align: left;
}

.section-header .section-title {
  font-size: 22px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.section-intro {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

.section-title {
  font-size: 22px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.7;
  margin-bottom: 24px;
}

/* ==========================================================================
   components — 文本链接
   ========================================================================== */

.text-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: #2f6f6a;
  text-decoration: underline;
  transition: color 0.2s ease;
}

.text-link:hover {
  color: #245550;
}

/* ==========================================================================
   components — 相关链接导航
   ========================================================================== */

.related-links {
  max-width: 1200px;
  margin: 48px auto 0;
  padding: 0 24px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 500;
  color: #7a8b89;
}

.related-links-item {
  font-size: 14px;
  color: #2f6f6a;
  text-decoration: underline;
}

.related-links-item:hover {
  color: #245550;
}

/* ==========================================================================
   components — 页面内嵌图片
   ========================================================================== */

.content-media {
  margin: 0;
}

.content-media-inline {
  margin-top: 16px;
}

.content-media img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
}

.content-media figcaption {
  font-size: 13px;
  color: #7a8b89;
  padding: 8px 4px 0;
  line-height: 1.5;
}

.page-hero-media {
  max-width: 1200px;
  margin: 0 auto 40px;
  padding: 0 24px;
}

.page-hero-media img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
}

.page-hero-media figcaption {
  font-size: 13px;
  color: #7a8b89;
  padding: 8px 4px 0;
  line-height: 1.5;
}

/* ==========================================================================
   components — 卡片通用
   ========================================================================== */

.service-card,
.method-card,
.scenario-card,
.principle-card,
.material-card,
.response-card,
.related-entry-card,
.sidebar-card {
  background-color: #ffffff;
  border: 1px solid #dce8e6;
  border-radius: 8px;
  padding: 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-card:hover,
.method-card:hover,
.scenario-card:hover,
.principle-card:hover,
.material-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(31, 58, 58, 0.08);
}

/* ==========================================================================
   pages — 首页 hero
   ========================================================================== */

.hero-section {
  background-color: #ffffff;
  padding: 48px 0 56px;
}

.hero-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-media {
  margin: 0;
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-title {
  font-size: 32px;
  font-weight: 700;
  color: #1f3a3a;
  line-height: 1.3;
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 18px;
  font-weight: 500;
  color: #2f6f6a;
  margin-bottom: 12px;
}

.hero-description {
  font-size: 16px;
  color: #7a8b89;
  line-height: 1.8;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==========================================================================
   pages — 首页信任条
   ========================================================================== */

.trust-bar {
  background-color: #f5f7f6;
  border-top: 1px solid #dce8e6;
  border-bottom: 1px solid #dce8e6;
}

.trust-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
}

.trust-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.trust-list li {
  font-size: 14px;
  color: #1f3a3a;
  padding-left: 20px;
  position: relative;
  line-height: 1.6;
}

.trust-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background-color: #2f6f6a;
  border-radius: 50%;
}

/* ==========================================================================
   pages — 首页专题策展理念
   ========================================================================== */

.concept-section {
  padding: 64px 0;
  background-color: #ffffff;
}

.concept-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.concept-text .section-title {
  margin-bottom: 16px;
}

.concept-text p {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.8;
  margin-bottom: 16px;
}

.concept-media {
  margin: 0;
}

.concept-image {
  width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

/* ==========================================================================
   pages — 首页服务矩阵
   ========================================================================== */

.services-section {
  padding: 64px 0;
  background-color: #f5f7f6;
  border-top: 1px solid #dce8e6;
  border-bottom: 1px solid #dce8e6;
}

.services-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-icon {
  font-size: 28px;
  line-height: 1;
  margin-bottom: 16px;
  color: #2f6f6a;
}

.service-name {
  font-size: 18px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 10px;
}

.service-desc {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin-bottom: 12px;
}

.service-scene {
  font-size: 13px;
  color: #2f6f6a;
  line-height: 1.6;
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid #dce8e6;
}

/* ==========================================================================
   pages — 首页内容组织方法
   ========================================================================== */

.method-section {
  padding: 64px 0;
  background-color: #ffffff;
}

.method-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.method-icon {
  font-size: 28px;
  line-height: 1;
  margin-bottom: 16px;
  color: #2f6f6a;
}

.method-title {
  font-size: 18px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 10px;
}

.method-desc {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

/* ==========================================================================
   pages — 首页合作流程时间线
   ========================================================================== */

.process-preview {
  padding: 64px 0;
  background-color: #f5f7f6;
  border-top: 1px solid #dce8e6;
  border-bottom: 1px solid #dce8e6;
}

.process-steps {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-step {
  position: relative;
  padding: 24px;
  background-color: #ffffff;
  border: 1px solid #dce8e6;
  border-radius: 8px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  background-color: #2f6f6a;
  border-radius: 50%;
  margin-bottom: 14px;
}

.step-title {
  font-size: 17px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.step-output {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.6;
  margin: 0;
}

/* ==========================================================================
   pages — 首页编辑推荐与延伸阅读
   ========================================================================== */

.recommend-section {
  padding: 64px 0;
  background-color: #ffffff;
}

.recommend-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.recommend-col .section-title {
  margin-bottom: 20px;
}

.recommend-list li {
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid #dce8e6;
}

.recommend-list li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.recommend-link {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: #2f6f6a;
  line-height: 1.6;
  transition: color 0.2s ease;
}

.recommend-link:hover {
  color: #245550;
  text-decoration: underline;
}

/* ==========================================================================
   pages — 首页常见问题预览
   ========================================================================== */

.faq-preview {
  padding: 64px 0;
  background-color: #f5f7f6;
  border-top: 1px solid #dce8e6;
  border-bottom: 1px solid #dce8e6;
}

.faq-preview-list {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.faq-preview-link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px;
  background-color: #ffffff;
  border: 1px solid #dce8e6;
  border-radius: 8px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.faq-preview-link:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(31, 58, 58, 0.08);
}

.faq-question {
  font-size: 16px;
  font-weight: 600;
  color: #1f3a3a;
  line-height: 1.5;
}

.faq-answer {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.6;
}

/* ==========================================================================
   pages — 首页反馈入口条
   ========================================================================== */

.feedback-entry {
  padding: 56px 0;
  background-color: #ffffff;
}

.feedback-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 48px;
  background-color: #f5f7f6;
  border: 1px solid #dce8e6;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.feedback-text {
  flex: 1;
}

.feedback-title {
  font-size: 20px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.feedback-desc {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

/* ==========================================================================
   pages — 服务内容页
   ========================================================================== */

.service-check-section,
.service-compare-section,
.service-scenario-section,
.service-verify-section,
.service-cta-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 8px;
}

.check-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.check-item {
  background-color: #f5f7f6;
  border-radius: 8px;
  padding: 20px 24px;
}

.check-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 6px;
}

.check-item p {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

.table-scroll-wrap {
  margin-top: 24px;
  overflow-x: auto;
  border: 1px solid #dce8e6;
  border-radius: 8px;
}

.compare-table {
  width: 100%;
  min-width: 640px;
  background-color: #ffffff;
}

.compare-table th,
.compare-table td {
  padding: 16px 20px;
  text-align: left;
  font-size: 14px;
  line-height: 1.7;
  border-bottom: 1px solid #dce8e6;
  vertical-align: top;
}

.compare-table thead th {
  background-color: #f5f7f6;
  font-weight: 600;
  color: #1f3a3a;
  white-space: nowrap;
}

.compare-table tbody th {
  font-weight: 600;
  color: #1f3a3a;
  white-space: nowrap;
  background-color: #fafcfc;
}

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

.compare-table td {
  color: #7a8b89;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.scenario-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.scenario-card p {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

.verify-list {
  margin-top: 24px;
  display: grid;
  gap: 16px;
}

.verify-item {
  background-color: #f5f7f6;
  border-radius: 8px;
  padding: 20px 24px;
}

.verify-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 6px;
}

.verify-item p {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

.service-cta-section {
  padding-bottom: 48px;
}

.service-cta-section h2 {
  margin-bottom: 8px;
}

.service-cta-section p {
  font-size: 15px;
  color: #7a8b89;
  margin-bottom: 20px;
}

.cta-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==========================================================================
   pages — 合作流程页
   ========================================================================== */

.process-timeline-section,
.material-list-section,
.delivery-standard-section,
.self-check-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 8px;
}

.timeline {
  margin-top: 32px;
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background-color: #dce8e6;
}

.timeline-item {
  position: relative;
  padding-bottom: 32px;
}

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

.timeline-marker {
  position: absolute;
  left: -40px;
  top: 4px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: #2f6f6a;
  border: 4px solid #ffffff;
  box-shadow: 0 0 0 2px #2f6f6a;
}

.timeline-content {
  background-color: #f5f7f6;
  border-radius: 8px;
  padding: 24px;
}

.timeline-content h3 {
  font-size: 18px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 6px;
}

.timeline-duration {
  font-size: 13px;
  color: #2f6f6a;
  font-weight: 500;
  margin-bottom: 8px;
}

.timeline-desc {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin-bottom: 10px;
}

.timeline-output {
  font-size: 14px;
  color: #1f3a3a;
  line-height: 1.7;
  margin: 0;
}

.timeline-output strong {
  color: #2f6f6a;
  font-weight: 600;
}

.material-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.material-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 12px;
}

.material-list li {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  padding-left: 16px;
  position: relative;
  margin-bottom: 6px;
}

.material-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: #2f6f6a;
  border-radius: 50%;
}

.standard-list {
  margin-top: 24px;
  display: grid;
  gap: 16px;
}

.standard-list li {
  background-color: #f5f7f6;
  border-radius: 8px;
  padding: 20px 24px;
}

.standard-list h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 6px;
}

.standard-list p {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

.selfcheck-box {
  margin-top: 24px;
  background-color: #fdf8f0;
  border: 1px solid #e8dcc8;
  border-radius: 8px;
  padding: 28px;
}

.selfcheck-box > p {
  font-size: 15px;
  color: #1f3a3a;
  line-height: 1.7;
  margin-bottom: 16px;
}

.selfcheck-list li {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
  margin-bottom: 8px;
}

.selfcheck-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #2f6f6a;
  font-weight: 600;
}

.selfcheck-note {
  font-size: 13px;
  color: #7a8b89;
  line-height: 1.6;
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid #e8dcc8;
}

.related-entry-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 8px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.related-entry-card h2 {
  font-size: 18px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.related-entry-card p {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin-bottom: 16px;
}

/* ==========================================================================
   pages — 常见问题页
   ========================================================================== */

.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.page-heading {
  padding: 8px 0 24px;
}

.faq-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: start;
}

.faq-group {
  margin-bottom: 40px;
}

.faq-group-title {
  font-size: 20px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #dce8e6;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  border: 1px solid #dce8e6;
  border-radius: 8px;
  background-color: #ffffff;
  overflow: hidden;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 500;
  color: #1f3a3a;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.2s ease;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: #2f6f6a;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item[open] summary {
  background-color: #f5f7f6;
}

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

.faq-item summary:hover {
  background-color: #f5f7f6;
}

.faq-item .faq-answer {
  padding: 0 24px 18px;
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.8;
}

.faq-more {
  background-color: #f5f7f6;
  border: 1px solid #dce8e6;
  border-radius: 8px;
  padding: 32px;
  text-align: center;
}

.faq-more-title {
  font-size: 18px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.faq-more-desc {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.7;
  margin-bottom: 20px;
}

.faq-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-card {
  padding: 24px;
}

.sidebar-title {
  font-size: 17px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 16px;
}

.sidebar-links li {
  margin-bottom: 10px;
}

.sidebar-links a {
  font-size: 14px;
  color: #2f6f6a;
  line-height: 1.6;
}

.sidebar-links a:hover {
  text-decoration: underline;
}

.sidebar-figure {
  margin: 0;
}

.sidebar-image {
  width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  aspect-ratio: 16 / 10;
}

.sidebar-caption {
  font-size: 13px;
  color: #7a8b89;
  padding: 8px 4px 0;
  line-height: 1.5;
}

/* ==========================================================================
   pages — 关于本站页
   ========================================================================== */

.about-workspace,
.about-principles,
.about-standards,
.about-compliance,
.about-related {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 8px;
}

.workspace-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.workspace-media {
  margin: 0;
}

.workspace-media img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.workspace-media figcaption {
  font-size: 13px;
  color: #7a8b89;
  padding: 8px 4px 0;
  line-height: 1.5;
}

.workspace-text h2 {
  margin-bottom: 16px;
}

.workspace-text p {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.8;
  margin-bottom: 14px;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 24px;
}

.principle-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.principle-card p {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

.standards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 24px;
}

.standards-col {
  background-color: #f5f7f6;
  border-radius: 8px;
  padding: 24px;
}

.standards-col h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 16px;
}

.standards-list li {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
  margin-bottom: 10px;
}

.standards-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: #2f6f6a;
  border-radius: 50%;
}

.compliance-block {
  background-color: #f5f7f6;
  border-radius: 8px;
  padding: 24px;
  margin-top: 16px;
}

.compliance-block p {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.8;
  margin-bottom: 10px;
}

.compliance-block p:last-child {
  margin-bottom: 0;
}

.about-related {
  padding-bottom: 48px;
}

.about-related .related-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
}

/* ==========================================================================
   pages — 合作咨询页
   ========================================================================== */

.contact-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.contact-section-inner {
  display: grid;
  gap: 40px;
}

.prepare-block {
  background-color: #f5f7f6;
  border-radius: 8px;
  padding: 32px;
}

.prepare-block h2 {
  font-size: 20px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.block-intro {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.7;
  margin-bottom: 24px;
}

.prepare-list {
  display: grid;
  gap: 16px;
}

.prepare-item {
  background-color: #ffffff;
  border: 1px solid #dce8e6;
  border-radius: 8px;
  padding: 20px 24px;
}

.prepare-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 6px;
}

.prepare-item p {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

.feedback-entry-block {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 32px;
  align-items: center;
  background-color: #ffffff;
  border: 1px solid #dce8e6;
  border-radius: 8px;
  padding: 32px;
}

.feedback-entry-text h2 {
  font-size: 20px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.feedback-entry-text > p {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.7;
  margin-bottom: 16px;
}

.entry-list {
  margin-bottom: 16px;
}

.entry-list li {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
  margin-bottom: 6px;
}

.entry-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: #2f6f6a;
  border-radius: 50%;
}

.entry-note {
  font-size: 13px;
  color: #7a8b89;
  line-height: 1.6;
  margin: 0;
}

.feedback-entry-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.entry-action-btn {
  display: inline-block;
  padding: 14px 36px;
  font-size: 15px;
  font-weight: 500;
  background-color: #2f6f6a;
  color: #ffffff;
  border: 1px solid #2f6f6a;
  border-radius: 4px;
  text-align: center;
  transition: background-color 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.entry-action-btn:hover {
  background-color: #245550;
  border-color: #245550;
  color: #ffffff;
}

.entry-action-tip {
  font-size: 13px;
  color: #7a8b89;
  line-height: 1.6;
  text-align: center;
  margin: 0;
}

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

.response-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.response-card p {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

.privacy-block {
  background-color: #f5f7f6;
  border-radius: 8px;
  padding: 32px;
}

.privacy-block h2 {
  font-size: 20px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 12px;
}

.privacy-block > p {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.7;
  margin-bottom: 16px;
}

.privacy-list {
  margin-bottom: 16px;
}

.privacy-list li {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
  margin-bottom: 6px;
}

.privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: #2f6f6a;
  border-radius: 50%;
}

.privacy-note {
  font-size: 13px;
  color: #7a8b89;
  line-height: 1.6;
  margin: 0;
}

.related-entry {
  background-color: #ffffff;
  border: 1px solid #dce8e6;
  border-radius: 8px;
  padding: 24px;
  text-align: center;
}

.related-entry p {
  font-size: 15px;
  color: #7a8b89;
  margin-bottom: 16px;
}

.related-entry .related-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 0;
  margin: 0;
}

/* ==========================================================================
   pages — 内容指南页
   ========================================================================== */

.page-head {
  max-width: 1200px;
  margin: 0 auto;
  padding: 8px 24px 24px;
}

.guide-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 32px 0 48px;
}

.guide-hero-text h2 {
  font-size: 22px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 12px;
}

.guide-hero-text p {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.8;
  margin-bottom: 12px;
}

.guide-hero-figure {
  margin: 0;
}

.guide-hero-figure img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.guide-hero-figure figcaption {
  font-size: 13px;
  color: #7a8b89;
  padding: 8px 4px 0;
  line-height: 1.5;
}

.guide-section {
  padding: 32px 0 8px;
}

.guide-section h2 {
  font-size: 22px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 8px;
}

.section-lead {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.7;
  margin-bottom: 24px;
}

.steps-list {
  display: grid;
  gap: 20px;
  counter-reset: step-counter;
}

.step-item {
  background-color: #f5f7f6;
  border-radius: 8px;
  padding: 24px;
  position: relative;
  padding-left: 72px;
  counter-increment: step-counter;
}

.step-item::before {
  content: counter(step-counter);
  position: absolute;
  left: 24px;
  top: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  background-color: #2f6f6a;
  border-radius: 50%;
}

.step-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 6px;
}

.step-item p {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

.rules-list {
  display: grid;
  gap: 16px;
}

.rule-item {
  background-color: #f5f7f6;
  border-radius: 8px;
  padding: 20px 24px;
}

.rule-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 6px;
}

.rule-item p {
  font-size: 14px;
  color: #7a8b89;
  line-height: 1.7;
  margin: 0;
}

.two-col-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.col-block {
  background-color: #f5f7f6;
  border-radius: 8px;
  padding: 24px;
}

.col-block h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 16px;
}

.col-block .rules-list {
  gap: 12px;
}

.col-block .rule-item {
  background-color: #ffffff;
  border: 1px solid #dce8e6;
}

.related-entry {
  padding: 32px 0 48px;
}

.related-entry p {
  font-size: 15px;
  color: #7a8b89;
  margin-bottom: 20px;
}

.related-entry .btn-secondary {
  margin-left: 12px;
}

/* ==========================================================================
   pages — 404 页
   ========================================================================== */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
}

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

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: #2f6f6a;
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 24px;
  font-weight: 600;
  color: #1f3a3a;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: #7a8b89;
  line-height: 1.7;
  margin-bottom: 24px;
}

.error-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.error-btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  background-color: #2f6f6a;
  color: #ffffff;
  border: 1px solid #2f6f6a;
  border-radius: 4px;
  text-align: center;
  transition: background-color 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
}

.error-btn:hover {
  background-color: #245550;
  border-color: #245550;
  color: #ffffff;
}

.error-btn-secondary {
  background-color: transparent;
  color: #2f6f6a;
}

.error-btn-secondary:hover {
  background-color: #f5f7f6;
  color: #245550;
}

.error-help {
  font-size: 14px;
  color: #7a8b89;
}

.error-help a {
  color: #2f6f6a;
  text-decoration: underline;
}

/* ==========================================================================
   responsive — 移动端适配
   ========================================================================== */

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

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

@media (max-width: 768px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  h1 {
    font-size: 26px;
  }

  h2 {
    font-size: 20px;
  }

  /* 页头 */
  .header-inner {
    padding: 12px 16px;
    gap: 12px;
  }

  .brand-name {
    font-size: 18px;
  }

  .brand-slogan {
    display: none;
  }

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

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    padding: 8px 0;
    border-top: 1px solid #dce8e6;
  }

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

  .nav-link {
    display: block;
    padding: 12px 8px;
    font-size: 15px;
  }

  .header-actions {
    margin-left: auto;
  }

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

  .menu-toggle {
    display: inline-flex;
  }

  /* 页脚 */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  /* 面包屑 */
  .breadcrumb {
    padding: 12px 16px 0;
  }

  .page-header {
    padding: 24px 16px 8px;
  }

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

  .page-title-area {
    padding: 8px 16px 16px;
  }

  /* 首页 hero */
  .hero-section {
    padding: 32px 0 40px;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 16px;
  }

  .hero-media {
    order: 0;
  }

  .hero-content {
    order: 1;
  }

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

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

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

  /* 信任条 */
  .trust-inner {
    padding: 16px;
  }

  .trust-list {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  /* 概念区 */
  .concept-section {
    padding: 40px 0;
  }

  .concept-layout {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 0 16px;
  }

  /* 服务矩阵 */
  .services-section {
    padding: 40px 0;
  }

  .services-grid {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }

  .section-header {
    padding: 0 16px;
    margin-bottom: 24px;
  }

  /* 方法区 */
  .method-section {
    padding: 40px 0;
  }

  .method-grid {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }

  /* 流程预览 */
  .process-preview {
    padding: 40px 0;
  }

  .process-steps {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }

  /* 推荐区 */
  .recommend-section {
    padding: 40px 0;
  }

  .recommend-layout {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 0 16px;
  }

  /* FAQ 预览 */
  .faq-preview {
    padding: 40px 0;
  }

  .faq-preview-list {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }

  /* 反馈入口 */
  .feedback-entry {
    padding: 40px 0;
  }

  .feedback-inner {
    flex-direction: column;
    text-align: center;
    padding: 24px;
  }

  /* 内页通用 */
  .inner-main {
    padding-bottom: 40px;
  }

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

  /* 服务页 */
  .service-check-section,
  .service-compare-section,
  .service-scenario-section,
  .service-verify-section,
  .service-cta-section {
    padding: 24px 16px 8px;
  }

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

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

  .table-scroll-wrap {
    margin-top: 16px;
  }

  /* 流程页 */
  .process-timeline-section,
  .material-list-section,
  .delivery-standard-section,
  .self-check-section {
    padding: 24px 16px 8px;
  }

  .timeline {
    padding-left: 32px;
  }

  .timeline::before {
    left: 8px;
  }

  .timeline-marker {
    left: -32px;
    width: 18px;
    height: 18px;
  }

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

  .related-entry-section {
    grid-template-columns: 1fr;
    padding: 24px 16px 8px;
  }

  /* FAQ 页 */
  .page-container {
    padding: 0 16px;
  }

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

  .faq-sidebar {
    order: -1;
  }

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

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

  .faq-more {
    padding: 24px 16px;
  }

  /* 关于页 */
  .about-workspace,
  .about-principles,
  .about-standards,
  .about-compliance,
  .about-related {
    padding: 24px 16px 8px;
  }

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

  .workspace-media {
    order: 0;
  }

  .workspace-text {
    order: 1;
  }

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

  .standards-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* 联系页 */
  .contact-section {
    padding: 0 16px;
  }

  .prepare-block {
    padding: 24px;
  }

  .feedback-entry-block {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px;
  }

  .response-block {
    grid-template-columns: 1fr;
  }

  .privacy-block {
    padding: 24px;
  }

  /* 指南页 */
  .page-head {
    padding: 8px 16px 16px;
  }

  .guide-hero {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 24px 0 32px;
  }

  .guide-hero-text {
    order: 1;
  }

  .guide-hero-figure {
    order: 0;
  }

  .two-col-block {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .step-item {
    padding-left: 68px;
  }

  .step-item::before {
    left: 20px;
  }

  .related-entry .btn-secondary {
    margin-left: 0;
    margin-top: 12px;
  }

  /* 404 */
  .error-main {
    padding: 48px 16px;
  }

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

  /* 相关链接 */
  .related-links {
    padding: 0 16px;
    margin-top: 32px;
  }
}

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

  .header-action-btn {
    padding: 8px 10px;
    font-size: 12px;
  }

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

  .check-item,
  .verify-item,
  .standard-list li,
  .rule-item,
  .step-item,
  .prepare-item {
    padding: 16px;
  }

  .step-item {
    padding-left: 60px;
  }

  .step-item::before {
    left: 16px;
  }

  .timeline-content {
    padding: 16px;
  }
}