/* ==========================================================================
   base
   ========================================================================== */

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

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

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: #2B3238;
  background-color: #F7F5F1;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: #1B6E6A;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #14524F;
}

ul,
ol {
  list-style: none;
}

figure {
  margin: 0;
}

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

h1,
h2,
h3,
h4 {
  line-height: 1.4;
  font-weight: 600;
  color: #2B3238;
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 1em;
}

p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   layout
   ========================================================================== */

.site-header {
  background-color: #FFFFFF;
  border-bottom: 1px solid #E2DFD7;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-logo {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: #1B6E6A;
  letter-spacing: 0;
}

.brand-tagline {
  font-size: 13px;
  color: #6B7280;
  display: none;
}

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

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

.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: #2B3238;
  border-radius: 6px;
  line-height: 1.5;
  white-space: nowrap;
}

.nav-link:hover {
  color: #1B6E6A;
  background-color: #F0F5F4;
}

.nav-link.is-current {
  color: #1B6E6A;
  font-weight: 600;
  background-color: #E8F0EF;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 6px;
  background-color: transparent;
  align-items: center;
}

.toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #2B3238;
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-main {
  min-height: 60vh;
}

.site-footer {
  background-color: #FFFFFF;
  border-top: 1px solid #E2DFD7;
  margin-top: 64px;
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-col h3 {
  font-size: 15px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 16px;
}

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

.footer-col ul a {
  font-size: 14px;
  color: #4B5563;
  line-height: 1.6;
}

.footer-col ul a:hover {
  color: #1B6E6A;
}

.footer-bottom {
  border-top: 1px solid #E2DFD7;
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #9CA3AF;
  margin: 0;
}

/* 内页公共骨架 */
.inner-main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px 64px;
}

.breadcrumb {
  padding: 20px 0 4px;
  font-size: 14px;
  color: #6B7280;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.breadcrumb a {
  color: #1B6E6A;
}

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

.breadcrumb-sep {
  color: #9CA3AF;
  margin: 0 4px;
}

.breadcrumb-current {
  color: #4B5563;
}

.page-header {
  padding: 24px 0 8px;
  border-bottom: 1px solid #E2DFD7;
  margin-bottom: 28px;
}

.page-title {
  font-size: 30px;
  font-weight: 700;
  color: #2B3238;
  line-height: 1.4;
}

/* ==========================================================================
   components
   ========================================================================== */

/* 按钮 */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 28px;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn-primary {
  background-color: #1B6E6A;
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: #14524F;
  color: #FFFFFF;
}

.btn-secondary {
  background-color: transparent;
  color: #1B6E6A;
  border: 1px solid #1B6E6A;
}

.btn-secondary:hover {
  background-color: #E8F0EF;
  color: #14524F;
}

/* 区块标题 */
.section-header {
  margin-bottom: 32px;
}

.section-header h2 {
  font-size: 22px;
  font-weight: 700;
  color: #2B3238;
  margin-bottom: 8px;
}

.section-header p {
  font-size: 15px;
  color: #6B7280;
  line-height: 1.7;
  max-width: 640px;
}

/* 服务卡片（首页+内页通用） */
.service-card {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 28px;
  transition: box-shadow 0.2s ease;
}

.service-card:hover {
  box-shadow: 0 4px 16px rgba(27, 110, 106, 0.08);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 8px;
  background-color: #E8F0EF;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.card-icon svg {
  width: 24px;
  height: 24px;
  fill: #1B6E6A;
}

.service-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
}

.card-target {
  font-size: 14px;
  color: #6B7280;
  margin-bottom: 16px;
}

.card-points {
  margin-bottom: 20px;
}

.card-points li {
  font-size: 14px;
  color: #4B5563;
  padding-left: 18px;
  position: relative;
  line-height: 1.7;
  margin-bottom: 6px;
}

.card-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #E8A843;
}

.card-link {
  font-size: 14px;
  font-weight: 500;
  color: #1B6E6A;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.card-link:hover {
  color: #14524F;
}

/* 前后栏目导航 */
.prev-next-nav {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid #E2DFD7;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.prev-link,
.next-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  color: #1B6E6A;
  padding: 10px 0;
  min-height: 44px;
}

.prev-link:hover,
.next-link:hover {
  color: #14524F;
}

.prev-link::before {
  content: "←";
}

.next-link::after {
  content: "→";
}

/* 相关链接 */
.related-links {
  margin-top: 40px;
  padding: 16px 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links-label {
  font-size: 14px;
  color: #6B7280;
  font-weight: 500;
}

.related-links-item {
  font-size: 14px;
  color: #1B6E6A;
}

.related-links-item:hover {
  text-decoration: underline;
}

/* FAQ 手风琴 */
.faq-item {
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  background-color: #FFFFFF;
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 500;
  color: #2B3238;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 44px;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 20px;
  color: #1B6E6A;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

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

.faq-item p {
  padding: 0 20px 20px;
  font-size: 15px;
  color: #4B5563;
  line-height: 1.8;
}

/* 图片容器 */
figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ==========================================================================
   pages
   ========================================================================== */

/* ---------- 首页 index.html ---------- */

.home-main {
  overflow: visible;
}

.hero-section {
  background-color: #F7F5F1;
  padding: 56px 24px 48px;
}

.hero-content {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-text h1 {
  font-size: 34px;
  line-height: 1.35;
  margin-bottom: 16px;
  color: #2B3238;
}

.hero-lead {
  font-size: 17px;
  color: #4B5563;
  line-height: 1.8;
  margin-bottom: 28px;
}

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

.hero-visual {
  border-radius: 8px;
  overflow: hidden;
  background-color: #E8F0EF;
}

.hero-visual img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.service-quick-index {
  max-width: 1080px;
  margin: 48px auto 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.quick-card {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 24px;
  display: block;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.quick-card:hover {
  border-color: #1B6E6A;
  box-shadow: 0 4px 16px rgba(27, 110, 106, 0.08);
}

.quick-icon {
  display: block;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background-color: #E8F0EF;
  margin-bottom: 16px;
}

.quick-title {
  display: block;
  font-size: 17px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
}

.quick-desc {
  display: block;
  font-size: 14px;
  color: #6B7280;
  line-height: 1.6;
}

.service-overview {
  max-width: 1080px;
  margin: 0 auto;
  padding: 64px 24px 0;
}

.service-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.service-visual {
  border-radius: 8px;
  overflow: hidden;
  background-color: #E8F0EF;
}

.service-visual img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.focus-services {
  max-width: 1080px;
  margin: 0 auto;
  padding: 64px 24px 0;
}

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

.focus-card {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 32px;
}

.focus-card h3 {
  font-size: 19px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 12px;
}

.focus-card > p {
  font-size: 15px;
  color: #6B7280;
  line-height: 1.7;
  margin-bottom: 20px;
}

.focus-list {
  margin-bottom: 24px;
}

.focus-list li {
  font-size: 14px;
  color: #4B5563;
  padding-left: 18px;
  position: relative;
  line-height: 1.7;
  margin-bottom: 8px;
}

.focus-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #E8A843;
}

.focus-link {
  font-size: 14px;
  font-weight: 500;
  color: #1B6E6A;
}

.focus-link:hover {
  color: #14524F;
}

.process-preview {
  max-width: 1080px;
  margin: 0 auto;
  padding: 64px 24px 0;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.step-item {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 24px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #1B6E6A;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.step-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 14px;
  color: #6B7280;
  line-height: 1.6;
  margin: 0;
}

.process-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: #1B6E6A;
}

.process-link:hover {
  color: #14524F;
}

.faq-preview {
  max-width: 1080px;
  margin: 0 auto;
  padding: 64px 24px 0;
}

.faq-preview-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.faq-preview-item {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 24px;
}

.faq-preview-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
}

.faq-preview-item p {
  font-size: 14px;
  color: #6B7280;
  line-height: 1.6;
  margin-bottom: 12px;
}

.faq-preview-item a {
  font-size: 14px;
  color: #1B6E6A;
}

.faq-preview-item a:hover {
  text-decoration: underline;
}

/* ---------- 服务目录 hlbdy/services.html ---------- */

.page-heading {
  margin-bottom: 32px;
}

.page-heading p {
  font-size: 16px;
  color: #4B5563;
  line-height: 1.8;
}

.service-hero {
  margin-bottom: 48px;
}

.service-hero-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #E8F0EF;
  margin-bottom: 24px;
}

.service-hero-figure img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.service-overview p {
  font-size: 15px;
  color: #4B5563;
  line-height: 1.8;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-bottom: 48px;
}

.service-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid #E2DFD7;
}

.service-card-header h2 {
  font-size: 22px;
  font-weight: 700;
  color: #2B3238;
  margin: 0;
}

.service-tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 500;
  background-color: #E8F0EF;
  color: #1B6E6A;
  white-space: nowrap;
}

.service-card-monitor .service-tag {
  background-color: #E8F0EF;
  color: #1B6E6A;
}

.service-card-negative .service-tag {
  background-color: #FDF0E7;
  color: #C25E45;
}

.service-card-report .service-tag {
  background-color: #FBF3E0;
  color: #8A6D2F;
}

.service-card-body h3 {
  font-size: 16px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
  margin-top: 20px;
}

.service-card-body h3:first-child {
  margin-top: 0;
}

.service-card-body p {
  font-size: 15px;
  color: #4B5563;
  line-height: 1.8;
}

.deliverable-list {
  margin-bottom: 4px;
}

.deliverable-list li {
  font-size: 14px;
  color: #4B5563;
  padding-left: 18px;
  position: relative;
  line-height: 1.7;
  margin-bottom: 6px;
}

.deliverable-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #E8A843;
}

.deliverables-overview {
  margin-bottom: 48px;
  padding-top: 40px;
  border-top: 1px solid #E2DFD7;
}

.deliverables-overview h2 {
  font-size: 22px;
  font-weight: 700;
  color: #2B3238;
  margin-bottom: 8px;
}

.section-intro {
  font-size: 15px;
  color: #6B7280;
  margin-bottom: 24px;
}

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

.deliverable-item {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 24px;
}

.deliverable-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
}

.deliverable-item p {
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
  margin: 0;
}

/* ---------- 监测方法 hlbdy/methods.html ---------- */

.method-gallery {
  margin-bottom: 32px;
}

.gallery-main {
  border-radius: 8px;
  overflow: hidden;
  background-color: #E8F0EF;
  margin-bottom: 16px;
}

.gallery-main img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.gallery-main figcaption {
  padding: 12px 16px;
  font-size: 14px;
  color: #4B5563;
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-top: none;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.thumb-item {
  position: relative;
  border: 2px solid #E2DFD7;
  border-radius: 8px;
  overflow: hidden;
  padding: 0;
  background: none;
  cursor: pointer;
  aspect-ratio: 4 / 3;
  transition: border-color 0.2s ease;
}

.thumb-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb-item.is-active {
  border-color: #1B6E6A;
}

.thumb-check {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: #1B6E6A;
  color: #FFFFFF;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.thumb-item.is-active .thumb-check {
  opacity: 1;
}

.thumb-check::after {
  content: "✓";
}

.method-meta {
  margin-bottom: 40px;
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 20px 24px;
}

.meta-list {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.meta-item dt {
  font-size: 13px;
  color: #6B7280;
}

.meta-item dd {
  font-size: 15px;
  color: #2B3238;
  font-weight: 500;
}

.method-steps {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.method-steps .step-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding: 28px;
}

.method-steps .step-number {
  width: 44px;
  height: 44px;
  font-size: 16px;
  border-radius: 50%;
  background-color: #1B6E6A;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
}

.step-content h2 {
  font-size: 18px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 12px;
}

.step-content p {
  font-size: 15px;
  color: #4B5563;
  line-height: 1.8;
  margin-bottom: 12px;
}

.step-content p:last-child {
  margin-bottom: 0;
}

/* ---------- 应用场景 hlbdy/scenarios.html ---------- */

.page-title-area {
  margin-bottom: 24px;
}

.page-title-area p {
  font-size: 16px;
  color: #4B5563;
  line-height: 1.8;
}

.scenario-hero {
  margin-bottom: 32px;
}

.scenario-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #E8F0EF;
}

.scenario-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.scene-tabs {
  margin-bottom: 32px;
}

.tabs-inner {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 10px 24px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  color: #4B5563;
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  min-height: 44px;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.tab-btn:hover {
  border-color: #1B6E6A;
  color: #1B6E6A;
}

.tab-btn.is-active {
  background-color: #1B6E6A;
  color: #FFFFFF;
  border-color: #1B6E6A;
}

.scenario-panels {
  margin-bottom: 48px;
}

.scenario-card {
  display: none;
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 32px;
}

.scenario-card.is-active {
  display: block;
}

.card-head {
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #E2DFD7;
}

.card-head h2 {
  font-size: 20px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
}

.card-subtitle {
  font-size: 15px;
  color: #6B7280;
  line-height: 1.7;
  margin: 0;
}

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

.risk-block h3,
.focus-block h3,
.report-block h3 {
  font-size: 16px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid #E8A843;
  display: inline-block;
}

.risk-block ul li,
.focus-block ul li,
.report-block ul li {
  font-size: 14px;
  color: #4B5563;
  padding-left: 16px;
  position: relative;
  line-height: 1.7;
  margin-bottom: 8px;
}

.risk-block ul li::before,
.focus-block ul li::before,
.report-block ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: #1B6E6A;
}

.scenario-links {
  margin-bottom: 48px;
}

.links-inner {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 28px;
}

.links-inner h2 {
  font-size: 18px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 16px;
}

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

.link-list a {
  font-size: 15px;
  color: #1B6E6A;
  font-weight: 500;
}

.link-list a:hover {
  text-decoration: underline;
}

/* ---------- 合作流程 hlbdy/process.html ---------- */

.heading-lead {
  font-size: 16px;
  color: #4B5563;
  line-height: 1.8;
}

.process-intro {
  margin-bottom: 40px;
}

.process-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #E8F0EF;
  margin-bottom: 20px;
}

.process-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.process-figure figcaption {
  padding: 12px 16px;
  font-size: 14px;
  color: #4B5563;
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-top: none;
}

.process-intro > p {
  font-size: 15px;
  color: #4B5563;
  line-height: 1.8;
}

.process-timeline {
  margin-bottom: 48px;
}

.process-timeline h2 {
  font-size: 22px;
  font-weight: 700;
  color: #2B3238;
  margin-bottom: 24px;
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.timeline-card {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 24px;
}

.timeline-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #1B6E6A;
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
}

.timeline-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
}

.timeline-card p {
  font-size: 14px;
  color: #6B7280;
  line-height: 1.6;
  margin: 0;
}

.step-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 48px;
}

.step-details > h2 {
  font-size: 22px;
  font-weight: 700;
  color: #2B3238;
  margin-bottom: 8px;
}

.step-block {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 28px;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
}

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

.step-header h3 {
  font-size: 18px;
  font-weight: 600;
  color: #2B3238;
  margin: 0;
}

.step-desc {
  font-size: 15px;
  color: #4B5563;
  line-height: 1.8;
  margin-bottom: 20px;
}

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

.detail-item {
  background-color: #F7F5F1;
  border-radius: 6px;
  padding: 20px;
}

.detail-item h4 {
  font-size: 15px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 12px;
}

.detail-item ul li {
  font-size: 14px;
  color: #4B5563;
  padding-left: 14px;
  position: relative;
  line-height: 1.7;
  margin-bottom: 6px;
}

.detail-item ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: #E8A843;
}

.next-step {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 32px;
  text-align: left;
  margin-bottom: 32px;
}

.next-step h2 {
  font-size: 20px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
}

.next-step p {
  font-size: 15px;
  color: #4B5563;
  margin-bottom: 24px;
}

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

/* ---------- 常见问题 hlbdy/faq.html ---------- */

.page-title-area {
  margin-bottom: 24px;
}

.page-title-area p {
  font-size: 16px;
  color: #4B5563;
  line-height: 1.8;
}

.boundary-section {
  margin-bottom: 48px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  color: #2B3238;
  margin-bottom: 20px;
}

.boundary-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #E8F0EF;
  margin-bottom: 16px;
}

.boundary-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.boundary-figure figcaption {
  padding: 12px 16px;
  font-size: 14px;
  color: #4B5563;
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-top: none;
}

.faq-section {
  margin-bottom: 48px;
}

.faq-group {
  margin-bottom: 32px;
}

.faq-group-title {
  font-size: 17px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 16px;
  padding-left: 12px;
  border-left: 4px solid #1B6E6A;
}

.continue-links {
  margin-bottom: 48px;
}

.continue-title {
  font-size: 16px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 16px;
}

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

.continue-list a {
  font-size: 15px;
  color: #1B6E6A;
  font-weight: 500;
}

.continue-list a:hover {
  text-decoration: underline;
}

/* ---------- 反馈说明 hlbdy/feedback.html ---------- */

.page-description {
  font-size: 16px;
  color: #4B5563;
  line-height: 1.8;
  margin-top: 12px;
}

.feedback-image-block {
  margin-bottom: 48px;
}

.feedback-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #E8F0EF;
  margin-bottom: 16px;
}

.feedback-figure img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}

.feedback-figure figcaption {
  padding: 12px 16px;
  font-size: 14px;
  color: #4B5563;
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-top: none;
}

.checklist-section {
  margin-bottom: 48px;
}

.checklist-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: #2B3238;
  margin-bottom: 8px;
}

.checklist-section > p {
  font-size: 15px;
  color: #6B7280;
  margin-bottom: 24px;
}

.checklist-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.checklist-item {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 20px 24px;
}

.checklist-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
}

.checklist-item p {
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
  margin: 0;
}

.feedback-mechanism-section {
  margin-bottom: 48px;
}

.feedback-mechanism-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: #2B3238;
  margin-bottom: 8px;
}

.feedback-mechanism-section > p {
  font-size: 15px;
  color: #6B7280;
  margin-bottom: 24px;
}

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

.feedback-item {
  background-color: #FFFFFF;
  border: 1px solid #E2DFD7;
  border-radius: 8px;
  padding: 24px;
}

.feedback-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
}

.feedback-item p {
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
  margin: 0;
}

.boundary-section {
  margin-bottom: 48px;
}

.boundary-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: #2B3238;
  margin-bottom: 8px;
}

.boundary-section > p {
  font-size: 15px;
  color: #6B7280;
  margin-bottom: 24px;
}

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

.boundary-card {
  border-radius: 8px;
  padding: 24px;
}

.boundary-exclude {
  background-color: #FDF0E7;
  border: 1px solid #F3CDB8;
}

.boundary-review {
  background-color: #E8F0EF;
  border: 1px solid #C5DCD8;
}

.boundary-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: #2B3238;
  margin-bottom: 8px;
}

.boundary-card p {
  font-size: 14px;
  color: #4B5563;
  line-height: 1.7;
  margin: 0;
}

.next-step-section {
  margin-bottom: 48px;
}

.next-step-section h2 {
  font-size: 22px;
  font-weight: 700;
  color: #2B3238;
  margin-bottom: 8px;
}

.next-step-section > p {
  font-size: 15px;
  color: #6B7280;
  margin-bottom: 24px;
}

.next-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.next-links a {
  font-size: 15px;
  color: #1B6E6A;
  font-weight: 500;
}

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

/* ---------- 404.html ---------- */

.error-main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 80px 24px;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.error-content {
  text-align: center;
  max-width: 480px;
}

.error-code {
  font-size: 64px;
  font-weight: 700;
  color: #1B6E6A;
  line-height: 1;
  margin-bottom: 16px;
}

.error-content h1 {
  font-size: 24px;
  color: #2B3238;
  margin-bottom: 16px;
}

.error-desc {
  font-size: 16px;
  color: #4B5563;
  margin-bottom: 32px;
}

.error-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 28px;
  border-radius: 6px;
  background-color: #1B6E6A;
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 500;
}

.error-link:hover {
  background-color: #14524F;
  color: #FFFFFF;
}

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 960px) {
  .header-inner {
    padding: 0 16px;
  }

  .brand-tagline {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav.site-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background-color: #FFFFFF;
    border-bottom: 1px solid #E2DFD7;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    margin-left: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 16px;
    max-height: calc(100vh - 80px);
    overflow-y: auto;
  }

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

  .nav-link {
    padding: 12px 8px;
    font-size: 16px;
    border-radius: 0;
    border-bottom: 1px solid #F0EEE9;
    white-space: normal;
  }

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

  .hero-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-visual img {
    height: 260px;
  }

  .service-quick-index {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .service-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .timeline-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .step-detail-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .card-body {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .deliverables-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

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

  .checklist-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .boundary-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .inner-main {
    padding: 0 16px 48px;
  }

  .gallery-thumbs {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 720px) {
  .header-inner {
    height: 64px;
  }

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

  .nav-toggle {
    top: 64px;
  }

  .main-nav.site-nav {
    top: 64px;
  }

  .hero-section {
    padding: 40px 16px 32px;
  }

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

  .hero-lead {
    font-size: 16px;
  }

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

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

  .service-quick-index {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .quick-card {
    padding: 20px;
  }

  .service-overview {
    padding: 48px 16px 0;
  }

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

  .focus-services {
    padding: 48px 16px 0;
  }

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

  .focus-card {
    padding: 24px;
  }

  .process-preview {
    padding: 48px 16px 0;
  }

  .process-steps {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .faq-preview {
    padding: 48px 16px 0;
  }

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

  .inner-main {
    padding: 0 16px 40px;
  }

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

  .breadcrumb {
    padding-top: 16px;
  }

  .service-hero-figure img {
    height: 220px;
  }

  .service-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .service-card {
    padding: 20px;
  }

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

  .deliverable-item {
    padding: 20px;
  }

  .gallery-main img {
    height: 240px;
  }

  .gallery-thumbs {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .method-meta {
    padding: 16px;
  }

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

  .method-steps .step-item {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 20px;
  }

  .method-steps .step-number {
    width: 36px;
    height: 36px;
    font-size: 14px;
  }

  .scenario-figure img {
    height: 220px;
  }

  .tab-btn {
    padding: 8px 16px;
    font-size: 14px;
  }

  .scenario-card {
    padding: 20px;
  }

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

  .links-inner {
    padding: 20px;
  }

  .process-figure img {
    height: 220px;
  }

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

  .step-block {
    padding: 20px;
  }

  .step-detail-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .next-step {
    padding: 24px;
  }

  .next-links {
    flex-direction: column;
    align-items: stretch;
  }

  .next-links .btn-primary,
  .next-links .btn-secondary {
    width: 100%;
  }

  .boundary-figure img {
    height: 220px;
  }

  .feedback-figure img {
    height: 220px;
  }

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

  .checklist-item {
    padding: 16px 20px;
  }

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

  .feedback-item {
    padding: 20px;
  }

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

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

  .footer-bottom {
    padding: 16px;
  }

  .prev-next-nav {
    flex-direction: column;
    gap: 8px;
  }

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

  .error-code {
    font-size: 48px;
  }
}

@media (max-width: 480px) {
  .hero-text h1 {
    font-size: 24px;
  }

  .hero-visual img {
    height: 200px;
  }

  .service-visual img {
    height: 200px;
  }

  .gallery-thumbs {
    grid-template-columns: repeat(3, 1fr);
  }

  .thumb-check {
    width: 20px;
    height: 20px;
    font-size: 12px;
  }
}