/* ==========================================================================
   BASE — 全局基础
   ========================================================================== */

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

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

body {
  font-family: "Noto Serif SC", Georgia, "Songti SC", serif;
  font-size: 16px;
  line-height: 1.7;
  color: #2B2B2B;
  background-color: #F9F7F4;
}

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

a {
  color: #1F4E5F;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #A63D40;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Noto Serif SC", Georgia, "Songti SC", serif;
  font-weight: 700;
  line-height: 1.4;
  color: #1F4E5F;
}

h1 {
  font-size: 36px;
}

h2 {
  font-size: 28px;
}

h3 {
  font-size: 22px;
}

p {
  margin-bottom: 1em;
}

sup.footnote-ref {
  color: #A63D40;
  font-size: 0.75em;
  font-weight: 700;
  vertical-align: super;
  line-height: 1;
  margin-left: 2px;
}

/* ==========================================================================
   LAYOUT — 全站布局骨架
   ========================================================================== */

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

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

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

/* ==========================================================================
   HEADER — 页头与导航
   ========================================================================== */

.site-header {
  background-color: #F9F7F4;
  border-bottom: 1px solid #DCD5CD;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  font-size: 22px;
  font-weight: 700;
  color: #1F4E5F;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.brand-link:hover {
  color: #1F4E5F;
}

.brand-name {
  font-family: "Noto Serif SC", Georgia, serif;
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-item {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 600;
  color: #2B2B2B;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.nav-item:hover {
  color: #1F4E5F;
  border-bottom-color: #1F4E5F;
}

.nav-item.is-current {
  color: #1F4E5F;
  border-bottom-color: #A63D40;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid #DCD5CD;
  border-radius: 4px;
  cursor: pointer;
  flex-shrink: 0;
}

.toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #1F4E5F;
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* ==========================================================================
   FOOTER — 页脚
   ========================================================================== */

.site-footer {
  background-color: #1F4E5F;
  color: #E8E4DE;
  margin-top: 0;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand {
  display: inline-block;
  font-size: 20px;
  font-weight: 700;
  color: #F9F7F4;
  margin-bottom: 12px;
}

.footer-brand:hover {
  color: #F9F7F4;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #C8C4BE;
  margin-bottom: 0;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #F9F7F4;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

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

.footer-links a {
  font-size: 14px;
  color: #C8C4BE;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: #F9F7F4;
}

.footer-bottom {
  border-top: 1px solid rgba(217, 213, 205, 0.2);
  padding: 16px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #A8A49E;
  margin-bottom: 0;
}

/* ==========================================================================
   BUTTONS — 按钮
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  line-height: 1.4;
  min-height: 44px;
}

.btn-primary {
  background-color: #A63D40;
  color: #F9F7F4;
  border: 1px solid #A63D40;
}

.btn-primary:hover {
  background-color: #8E3235;
  color: #F9F7F4;
  border-color: #8E3235;
}

.btn-secondary {
  background-color: transparent;
  color: #1F4E5F;
  border: 1px solid #1F4E5F;
}

.btn-secondary:hover {
  background-color: #1F4E5F;
  color: #F9F7F4;
}

.btn-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 0;
  font-size: 15px;
  font-weight: 600;
  color: #1F4E5F;
  background: none;
  border: none;
  cursor: pointer;
  min-height: 44px;
}

.btn-text:hover {
  color: #A63D40;
}

.btn-text .arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

.btn-text:hover .arrow {
  transform: translateX(4px);
}

.btn-back {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  color: #F9F7F4;
  background-color: #1F4E5F;
  border: 1px solid #1F4E5F;
  border-radius: 4px;
  cursor: pointer;
  min-height: 44px;
  transition: background-color 0.2s ease;
}

.btn-back:hover {
  background-color: #173C49;
  color: #F9F7F4;
}

/* ==========================================================================
   BREADCRUMB — 面包屑
   ========================================================================== */

.breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px 0;
  font-size: 14px;
  color: #6B6B6B;
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb a {
  color: #1F4E5F;
}

.breadcrumb a:hover {
  color: #A63D40;
}

.breadcrumb-sep {
  color: #A8A49E;
}

.breadcrumb-current {
  color: #6B6B6B;
}

/* ==========================================================================
   PAGE HEADER — 内页标题区
   ========================================================================== */

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

.page-title {
  font-size: 36px;
  color: #1F4E5F;
  line-height: 1.3;
}

/* ==========================================================================
   ABSTRACT — 摘要框
   ========================================================================== */

.abstract-box,
.summary-box {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  border-left: 4px solid #A63D40;
  background-color: #F1EDE7;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.abstract-tag,
.abstract-label,
.summary-tag,
.summary-label {
  display: inline-block;
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 700;
  color: #A63D40;
  background-color: #E8E1D8;
  padding: 2px 10px;
  border-radius: 2px;
  letter-spacing: 0.05em;
}

.abstract-box p,
.summary-box p {
  font-size: 14px;
  line-height: 1.8;
  color: #4A4A4A;
  margin-bottom: 0;
}

.abstract-text {
  font-size: 14px;
  line-height: 1.8;
  color: #4A4A4A;
  margin-bottom: 0;
}

/* ==========================================================================
   HERO — 首屏
   ========================================================================== */

.hero {
  position: relative;
  background-color: #1F4E5F;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

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

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  padding: 60px 24px;
  text-align: left;
  width: 100%;
}

.hero-slogan {
  font-size: 16px;
  color: #DCD5CD;
  margin-bottom: 16px;
  letter-spacing: 0.06em;
}

.hero-title {
  font-size: 40px;
  color: #F9F7F4;
  margin-bottom: 16px;
  line-height: 1.3;
  max-width: 640px;
}

.hero-desc {
  font-size: 17px;
  color: #C8C4BE;
  margin-bottom: 24px;
  max-width: 560px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.hero-tag {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  color: #F9F7F4;
  border: 1px solid rgba(249, 247, 244, 0.5);
  border-radius: 2px;
  background-color: rgba(31, 78, 95, 0.5);
}

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

.hero-actions .btn-primary {
  background-color: #A63D40;
  border-color: #A63D40;
  color: #F9F7F4;
}

.hero-actions .btn-secondary {
  border-color: #F9F7F4;
  color: #F9F7F4;
}

.hero-actions .btn-secondary:hover {
  background-color: #F9F7F4;
  color: #1F4E5F;
}

/* ==========================================================================
   SUMMARY SECTION — 首页摘要区
   ========================================================================== */

.summary-section {
  padding: 56px 0 40px;
}

.summary-block {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 32px;
  border-left: 4px solid #A63D40;
  background-color: #F1EDE7;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.summary-label {
  display: inline-block;
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 700;
  color: #A63D40;
  background-color: #E8E1D8;
  padding: 2px 10px;
  border-radius: 2px;
  letter-spacing: 0.05em;
}

.summary-text {
  font-size: 15px;
  line-height: 1.8;
  color: #4A4A4A;
  margin-bottom: 0;
}

/* ==========================================================================
   SECTION TITLES — 区块标题
   ========================================================================== */

.section-title {
  font-size: 28px;
  color: #1F4E5F;
  margin-bottom: 8px;
  text-align: center;
}

.section-subtitle {
  font-size: 15px;
  color: #6B6B6B;
  text-align: center;
  margin-bottom: 40px;
}

/* ==========================================================================
   SERVICES GRID — 首页服务卡片
   ========================================================================== */

.services-section {
  padding: 40px 0;
}

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

.service-card {
  background-color: #FFFFFF;
  border: 1px solid #DCD5CD;
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.service-card:hover {
  box-shadow: 0 4px 16px rgba(31, 78, 95, 0.12);
  transform: translateY(-4px);
}

.card-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

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

.card-title {
  font-size: 20px;
  color: #1F4E5F;
  padding: 20px 20px 8px;
  margin-bottom: 0;
}

.card-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #4A4A4A;
  padding: 0 20px;
  margin-bottom: 16px;
  flex: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: #1F4E5F;
  padding: 0 20px 20px;
  min-height: 44px;
}

.card-link:hover {
  color: #A63D40;
}

.card-link .arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

.card-link:hover .arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   PROCESS STEPS — 首页流程预览
   ========================================================================== */

.process-section {
  padding: 40px 0;
  background-color: #F1EDE7;
}

.process-steps {
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 0;
  margin-bottom: 32px;
}

.step-item {
  flex: 1;
  background-color: #FFFFFF;
  border: 1px solid #DCD5CD;
  border-radius: 8px;
  padding: 24px 20px;
  text-align: center;
  transition: box-shadow 0.3s ease;
}

.step-item:hover {
  box-shadow: 0 4px 16px rgba(31, 78, 95, 0.1);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #1F4E5F;
  color: #F9F7F4;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-title {
  font-size: 18px;
  color: #1F4E5F;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 13px;
  line-height: 1.6;
  color: #6B6B6B;
  margin-bottom: 0;
}

.step-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  flex-shrink: 0;
  color: #A63D40;
  font-size: 20px;
  font-weight: 700;
}

.step-arrow::after {
  content: "→";
}

.process-section .btn-text {
  display: flex;
  margin: 0 auto;
}

/* ==========================================================================
   PROJECT TYPES — 首页项目类型
   ========================================================================== */

.project-types-section {
  padding: 56px 0;
}

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

.project-card {
  background-color: #FFFFFF;
  border: 1px solid #DCD5CD;
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.project-card:hover {
  box-shadow: 0 4px 16px rgba(31, 78, 95, 0.12);
  transform: translateY(-4px);
}

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

.project-card .card-title {
  font-size: 20px;
}

.project-card .card-desc {
  font-size: 14px;
  flex: 1;
}

/* ==========================================================================
   INDUSTRIES GRID — 首页行业入口
   ========================================================================== */

.industries-section {
  padding: 40px 0 56px;
  background-color: #F1EDE7;
}

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

.industry-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 28px 16px;
  background-color: #FFFFFF;
  border: 1px solid #DCD5CD;
  border-radius: 8px;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  min-height: 120px;
}

.industry-item:hover {
  box-shadow: 0 4px 16px rgba(31, 78, 95, 0.12);
  transform: translateY(-4px);
  color: #1F4E5F;
}

.industry-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: #1F4E5F;
  color: #F9F7F4;
  font-size: 20px;
  font-weight: 700;
}

.industry-name {
  font-size: 15px;
  font-weight: 600;
  color: #2B2B2B;
}

.industry-item:hover .industry-name {
  color: #1F4E5F;
}

/* ==========================================================================
   FAQ TEASER — 首页FAQ摘要
   ========================================================================== */

.faq-teaser-section {
  padding: 56px 0;
}

.faq-teaser-list {
  max-width: 900px;
  margin: 0 auto;
  border-top: 1px solid #DCD5CD;
}

.faq-teaser-item {
  padding: 24px 0;
  border-bottom: 1px solid #DCD5CD;
}

.faq-question {
  font-size: 18px;
  margin-bottom: 8px;
}

.faq-question a {
  color: #1F4E5F;
}

.faq-question a:hover {
  color: #A63D40;
}

.faq-answer {
  font-size: 14px;
  line-height: 1.7;
  color: #4A4A4A;
  margin-bottom: 0;
}

.faq-teaser-section .btn-text {
  display: flex;
  margin: 32px auto 0;
}

/* ==========================================================================
   CTA — 行动邀请
   ========================================================================== */

.cta-section {
  padding: 56px 0;
  background-color: #1F4E5F;
}

.cta-title {
  font-size: 28px;
  color: #F9F7F4;
  text-align: center;
  margin-bottom: 12px;
}

.cta-desc {
  font-size: 16px;
  color: #C8C4BE;
  text-align: center;
  max-width: 600px;
  margin: 0 auto 32px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cta-actions .btn-primary {
  background-color: #A63D40;
  border-color: #A63D40;
}

.cta-actions .btn-secondary {
  border-color: #F9F7F4;
  color: #F9F7F4;
}

.cta-actions .btn-secondary:hover {
  background-color: #F9F7F4;
  color: #1F4E5F;
}

/* ==========================================================================
   INNER PAGES — 内页通用
   ========================================================================== */

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

/* 页面标题区块（services / process / faq） */
.page-title-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px 0;
}

.page-title-inner {
  max-width: 1200px;
  margin: 0 auto;
}

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

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

/* ==========================================================================
   SERVICES PAGE — 服务项目页
   ========================================================================== */

.service-blocks {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 0;
}

.service-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  padding: 48px 0;
  border-bottom: 1px solid #DCD5CD;
}

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

.service-block:last-child {
  border-bottom: none;
}

.service-block:nth-child(even) .service-media {
  order: 2;
}

.service-block:nth-child(even) .service-content {
  order: 1;
}

.service-media {
  position: relative;
}

.service-figure {
  margin: 0;
}

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

.service-content {
  display: flex;
  flex-direction: column;
}

.service-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #A63D40;
  color: #F9F7F4;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}

.service-content h2 {
  font-size: 26px;
  color: #1F4E5F;
  margin-bottom: 12px;
}

.service-lead {
  font-size: 15px;
  line-height: 1.8;
  color: #4A4A4A;
  margin-bottom: 24px;
}

.service-detail {
  margin-bottom: 20px;
}

.service-detail h3 {
  font-size: 16px;
  color: #1F4E5F;
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid #DCD5CD;
}

.service-list {
  padding-left: 0;
}

.service-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: #4A4A4A;
  margin-bottom: 6px;
}

.service-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: #A63D40;
  font-weight: 700;
}

/* 服务页底部相关链接 */
.related-links {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 24px 0;
}

.related-links h2 {
  font-size: 22px;
  color: #1F4E5F;
  margin-bottom: 8px;
}

.related-links p {
  font-size: 14px;
  color: #4A4A4A;
  margin-bottom: 16px;
}

.related-link-list {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.related-link-list li a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #1F4E5F;
  border: 1px solid #1F4E5F;
  border-radius: 4px;
  min-height: 44px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.related-link-list li a:hover {
  background-color: #1F4E5F;
  color: #F9F7F4;
}

/* 相关链接横条（nav 形式） */
.related-links[aria-label="相关内容"] {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 16px;
  padding-bottom: 16px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 700;
  color: #1F4E5F;
}

.related-links-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: #1F4E5F;
  padding: 8px 16px;
  border: 1px solid #DCD5CD;
  border-radius: 4px;
  min-height: 44px;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.related-links-item:hover {
  border-color: #1F4E5F;
  background-color: #F1EDE7;
  color: #1F4E5F;
}

/* ==========================================================================
   CASES PAGE — 项目案例页
   ========================================================================== */

.page-layout.sidebar-left {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 0;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  align-items: start;
}

.cases-filter {
  position: sticky;
  top: 88px;
  background-color: #F1EDE7;
  border: 1px solid #DCD5CD;
  border-radius: 8px;
  padding: 20px;
}

.filter-title {
  font-size: 16px;
  color: #1F4E5F;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid #DCD5CD;
}

.filter-list li {
  margin-bottom: 4px;
}

.filter-list a {
  display: block;
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 600;
  color: #2B2B2B;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.filter-list a:hover {
  background-color: #E8E1D8;
  color: #1F4E5F;
}

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

.case-section {
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid #DCD5CD;
}

.case-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.case-media {
  margin-bottom: 24px;
}

.case-media figure {
  margin: 0;
}

.case-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
}

.case-media figcaption {
  font-size: 13px;
  color: #6B6B6B;
  padding: 8px 4px 0;
  text-align: right;
}

.case-info h2 {
  font-size: 24px;
  color: #1F4E5F;
  margin-bottom: 8px;
}

.case-summary {
  font-size: 15px;
  line-height: 1.8;
  color: #4A4A4A;
  margin-bottom: 20px;
}

.case-detail {
  background-color: #F1EDE7;
  border-radius: 8px;
  padding: 20px 24px;
}

.case-detail h3 {
  font-size: 15px;
  color: #1F4E5F;
  margin-bottom: 6px;
}

.case-detail p {
  font-size: 14px;
  line-height: 1.7;
  color: #4A4A4A;
  margin-bottom: 16px;
}

.method-list {
  padding-left: 0;
  margin-bottom: 16px;
}

.method-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: #4A4A4A;
  margin-bottom: 4px;
}

.method-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: #A63D40;
  font-weight: 700;
}

.related-links-block {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.related-links-block h2 {
  font-size: 22px;
  color: #1F4E5F;
  margin-bottom: 8px;
}

.related-links-block p {
  font-size: 14px;
  color: #4A4A4A;
  margin-bottom: 16px;
}

.related-links-block .related-links {
  padding: 0;
}

/* ==========================================================================
   PROCESS PAGE — 制作流程页
   ========================================================================== */

.process-intro-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 0;
}

.process-intro-inner {
  max-width: 900px;
  margin: 0 auto;
}

.intro-paragraph {
  font-size: 15px;
  line-height: 1.8;
  color: #4A4A4A;
  margin-bottom: 16px;
}

.process-stages-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 0;
}

.process-stages-inner {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
}

.process-stage {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 40px;
  padding: 40px 0;
  position: relative;
}

.process-stage::before {
  content: "";
  position: absolute;
  left: 69px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: #DCD5CD;
}

.process-stage:first-child::before {
  top: 50%;
}

.process-stage:last-child::before {
  bottom: auto;
  height: 50%;
}

.stage-number-column {
  position: relative;
  z-index: 1;
  text-align: center;
  padding-top: 8px;
}

.stage-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: #1F4E5F;
  color: #F9F7F4;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.stage-time {
  display: block;
  font-size: 13px;
  color: #6B6B6B;
}

.stage-content-column {
  min-width: 0;
  background-color: #FFFFFF;
  border: 1px solid #DCD5CD;
  border-radius: 8px;
  padding: 24px 28px;
}

.stage-media {
  margin-bottom: 20px;
}

.stage-figure {
  margin: 0;
}

.stage-figure img,
.stage-image {
  width: 100%;
  aspect-ratio: 16 / 8;
  object-fit: cover;
  border-radius: 6px;
}

.stage-title {
  font-size: 24px;
  color: #1F4E5F;
  margin-bottom: 10px;
}

.stage-summary {
  font-size: 15px;
  line-height: 1.8;
  color: #4A4A4A;
  margin-bottom: 20px;
}

.stage-detail {
  border-top: 1px solid #DCD5CD;
  padding-top: 20px;
}

.stage-subtitle {
  font-size: 15px;
  color: #1F4E5F;
  margin-bottom: 6px;
}

.stage-text {
  font-size: 14px;
  line-height: 1.7;
  color: #4A4A4A;
  margin-bottom: 16px;
}

.process-note-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 0;
}

.process-note-inner {
  max-width: 900px;
  margin: 0 auto;
  background-color: #F1EDE7;
  border-radius: 8px;
  padding: 32px;
}

.note-title {
  font-size: 20px;
  color: #1F4E5F;
  margin-bottom: 12px;
}

.note-paragraph {
  font-size: 14px;
  line-height: 1.8;
  color: #4A4A4A;
  margin-bottom: 12px;
}

.related-links-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 0;
}

.related-links-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.related-title {
  font-size: 20px;
  color: #1F4E5F;
  margin-bottom: 12px;
}

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

.related-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #1F4E5F;
  border: 1px solid #1F4E5F;
  border-radius: 4px;
  min-height: 44px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.related-link:hover {
  background-color: #1F4E5F;
  color: #F9F7F4;
}

/* ==========================================================================
   INDUSTRIES PAGE — 行业方案页
   ========================================================================== */

.industry-intro {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 0;
  font-size: 15px;
  line-height: 1.8;
  color: #4A4A4A;
}

.industry-block {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  border-bottom: 1px solid #DCD5CD;
}

.industry-block:last-child {
  border-bottom: none;
}

.industry-media {
  position: relative;
}

.industry-figure {
  margin: 0;
}

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

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

.industry-content h2 {
  font-size: 26px;
  color: #1F4E5F;
  margin-bottom: 12px;
}

.industry-content > p {
  font-size: 15px;
  line-height: 1.8;
  color: #4A4A4A;
  margin-bottom: 20px;
}

.industry-content h3 {
  font-size: 16px;
  color: #1F4E5F;
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid #DCD5CD;
}

.industry-list {
  padding-left: 0;
  margin-bottom: 20px;
}

.industry-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: #4A4A4A;
  margin-bottom: 6px;
}

.industry-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: #A63D40;
  font-weight: 700;
}

.industry-link {
  margin-top: 16px;
}

.industry-link a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: #1F4E5F;
  min-height: 44px;
}

.industry-link a:hover {
  color: #A63D40;
}

.industry-link a::after {
  content: "→";
  transition: transform 0.2s ease;
}

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

.related-list {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.related-list li a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  color: #1F4E5F;
  border: 1px solid #1F4E5F;
  border-radius: 4px;
  min-height: 44px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.related-list li a:hover {
  background-color: #1F4E5F;
  color: #F9F7F4;
}

/* ==========================================================================
   FAQ PAGE — 常见问题页
   ========================================================================== */

.faq-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px 0;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
}

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

.faq-intro p {
  font-size: 15px;
  line-height: 1.8;
  color: #4A4A4A;
  margin-bottom: 24px;
}

.faq-list {
  border-top: 1px solid #DCD5CD;
}

.faq-item {
  border-bottom: 1px solid #DCD5CD;
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  font-size: 17px;
  font-weight: 600;
  color: #1F4E5F;
  cursor: pointer;
  list-style: none;
  min-height: 44px;
  transition: color 0.2s ease;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: #A63D40;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

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

.faq-item summary:hover {
  color: #A63D40;
}

.faq-answer {
  padding: 0 0 20px;
}

.faq-answer p {
  font-size: 14px;
  line-height: 1.8;
  color: #4A4A4A;
  margin-bottom: 0;
}

.faq-figure {
  margin: 32px 0 0;
}

.faq-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 8px;
}

.faq-figure figcaption {
  font-size: 13px;
  color: #6B6B6B;
  padding: 8px 4px 0;
  text-align: right;
}

.faq-sidebar {
  position: sticky;
  top: 88px;
}

.sidebar-card {
  background-color: #F1EDE7;
  border: 1px solid #DCD5CD;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.sidebar-card h2 {
  font-size: 16px;
  color: #1F4E5F;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid #DCD5CD;
}

.sidebar-links li {
  margin-bottom: 4px;
}

.sidebar-links a {
  display: flex;
  align-items: center;
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 600;
  color: #2B2B2B;
  border-radius: 4px;
  min-height: 44px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.sidebar-links a:hover {
  background-color: #E8E1D8;
  color: #1F4E5F;
}

.sidebar-note {
  background-color: #FFFFFF;
  border: 1px solid #DCD5CD;
  border-radius: 8px;
  padding: 24px;
}

.sidebar-note h2 {
  font-size: 16px;
  color: #1F4E5F;
  margin-bottom: 12px;
}

.sidebar-note p {
  font-size: 14px;
  line-height: 1.7;
  color: #4A4A4A;
  margin-bottom: 0;
}

.contact-note {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 0;
  font-size: 15px;
  line-height: 1.8;
  color: #4A4A4A;
}

.contact-note a {
  font-weight: 600;
  color: #1F4E5F;
}

.contact-note a:hover {
  color: #A63D40;
}

/* ==========================================================================
   404 PAGE — 错误页
   ========================================================================== */

.error-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
}

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

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: #A63D40;
  line-height: 1;
  margin-bottom: 16px;
}

.error-content h1 {
  font-size: 28px;
  color: #1F4E5F;
  margin-bottom: 16px;
}

.error-desc {
  font-size: 16px;
  color: #4A4A4A;
  margin-bottom: 12px;
}

.error-help {
  font-size: 14px;
  color: #6B6B6B;
  margin-bottom: 32px;
}

/* ==========================================================================
   RESPONSIVE — 响应式
   ========================================================================== */

/* 平板 1024px */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

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

  .process-steps {
    flex-wrap: wrap;
    gap: 16px;
  }

  .step-item {
    flex: 1 1 calc(33.333% - 16px);
    min-width: 200px;
  }

  .step-arrow {
    display: none;
  }

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

  .faq-sidebar {
    position: static;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .sidebar-card {
    margin-bottom: 0;
  }

  .page-layout.sidebar-left {
    grid-template-columns: 200px 1fr;
    gap: 24px;
  }

  .service-block {
    gap: 32px;
  }

  .industry-block {
    gap: 32px;
  }
}

/* 手机 768px */
@media (max-width: 768px) {
  .header-inner {
    padding: 12px 16px;
    min-height: 60px;
  }

  .brand-link {
    font-size: 19px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav.site-nav {
    position: static;
    flex: none;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background-color: #F9F7F4;
    border-bottom: 1px solid #DCD5CD;
    box-shadow: 0 8px 16px rgba(31, 78, 95, 0.08);
    padding: 8px 16px 16px;
    gap: 0;
    z-index: 99;
  }

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

  .nav-item {
    padding: 14px 8px;
    font-size: 16px;
    border-bottom: 1px solid #DCD5CD;
    border-radius: 0;
    min-height: 48px;
    display: flex;
    align-items: center;
  }

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

  .nav-item.is-current {
    border-bottom: 1px solid #DCD5CD;
    color: #A63D40;
  }

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

  .hero {
    min-height: 440px;
  }

  .hero-content {
    padding: 48px 16px;
  }

  .hero-title {
    font-size: 30px;
  }

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

  .hero-tags {
    gap: 8px;
  }

  .hero-tag {
    font-size: 12px;
    padding: 5px 10px;
  }

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

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

  .summary-section {
    padding: 40px 0 32px;
  }

  .summary-block {
    flex-direction: column;
    padding: 20px;
    gap: 12px;
  }

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

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

  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .industry-item {
    padding: 20px 12px;
    min-height: 100px;
  }

  .process-steps {
    flex-direction: column;
    gap: 12px;
  }

  .step-item {
    flex: none;
    min-width: 0;
  }

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

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

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

  .page-header {
    padding: 16px 16px 0;
  }

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

  .breadcrumb {
    padding: 16px 16px 0;
    font-size: 13px;
    flex-wrap: wrap;
  }

  .abstract-box,
  .summary-box {
    margin: 16px 16px 0;
    padding: 16px;
    flex-direction: column;
    gap: 8px;
  }

  .page-title-section {
    padding: 16px 16px 0;
  }

  .page-title-block {
    padding: 16px 16px 0;
  }

  .page-title-area {
    padding: 16px 16px 0;
  }

  .service-blocks {
    padding: 32px 16px 0;
  }

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

  .service-block:nth-child(even) .service-media {
    order: 0;
  }

  .service-block:nth-child(even) .service-content {
    order: 0;
  }

  .related-links {
    padding: 24px 16px 0;
  }

  .related-link-list {
    flex-direction: column;
  }

  .related-link-list li a {
    width: 100%;
  }

  .page-layout.sidebar-left {
    grid-template-columns: 1fr;
    padding: 32px 16px 0;
    gap: 24px;
  }

  .cases-filter {
    position: static;
    top: auto;
    padding: 16px;
  }

  .filter-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .filter-list li {
    margin-bottom: 0;
  }

  .filter-list a {
    padding: 8px 14px;
    font-size: 13px;
    min-height: 44px;
  }

  .case-media img {
    aspect-ratio: 4 / 3;
  }

  .related-links-block {
    padding: 24px 16px;
  }

  .process-intro-section {
    padding: 32px 16px 0;
  }

  .process-stages-section {
    padding: 32px 16px 0;
  }

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

  .process-stage::before {
    display: none;
  }

  .stage-number-column {
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
    padding-top: 0;
  }

  .stage-number {
    margin-bottom: 0;
  }

  .stage-content-column {
    padding: 20px;
  }

  .process-note-section {
    padding: 32px 16px 0;
  }

  .process-note-inner {
    padding: 24px 20px;
  }

  .related-links-section {
    padding: 32px 16px 0;
  }

  .related-links-list {
    flex-direction: column;
  }

  .related-link {
    width: 100%;
  }

  .industry-intro {
    padding: 24px 16px 0;
  }

  .industry-block {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 32px 16px;
  }

  .industry-media {
    order: -1;
  }

  .related-list {
    flex-direction: column;
  }

  .related-list li a {
    width: 100%;
  }

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

  .faq-sidebar {
    grid-template-columns: 1fr;
  }

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

  .contact-note {
    padding: 24px 16px 0;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 40px 16px 24px;
  }

  .brand-column {
    grid-column: 1 / -1;
  }

  .error-main {
    padding: 60px 16px;
  }

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

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

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
}

/* 小手机 480px */
@media (max-width: 480px) {
  .industries-grid {
    grid-template-columns: 1fr;
  }

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

  .brand-column {
    grid-column: auto;
  }

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

  .hero-slogan {
    font-size: 14px;
  }

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

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

  .section-title {
    font-size: 22px;
  }

  .section-subtitle {
    font-size: 14px;
    margin-bottom: 28px;
  }

  .card-title {
    font-size: 18px;
  }

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