/* ============================================================
   Base / Reset / Tokens
   ============================================================ */
:root {
  --color-primary: #0F766E;
  --color-primary-dark: #0B5D57;
  --color-primary-light: #E6F2F1;
  --color-accent: #F59E0B;
  --color-bg: #F7F9F9;
  --color-surface: #FFFFFF;
  --color-text: #1F2937;
  --color-text-secondary: #6B7280;
  --color-border: #E5E7EB;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --container-width: 1200px;
  --radius: 8px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --transition: 0.2s ease;
  --tab-num: 0;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
}

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

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

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

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: 700;
  line-height: 1.3;
  color: var(--color-text);
}

h1 {
  font-size: 28px;
}

h2 {
  font-size: 22px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 0;
}

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

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

.brand-logo {
  display: flex;
  flex-direction: column;
  gap: 0;
  flex-shrink: 0;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.brand-slogan {
  font-size: 12px;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

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

.nav-item {
  position: relative;
}

.nav-link {
  display: block;
  padding: 8px 14px;
  font-size: 15px;
  color: var(--color-text);
  border-radius: 6px;
  transition: background-color var(--transition), color var(--transition);
}

.nav-link:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

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

.nav-link.is-current::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
}

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

.site-main.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 64px;
}

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

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

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

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

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

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

/* Page header (inner pages) */
.page-header {
  margin-bottom: 24px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}

.page-title-area,
.page-title-block,
.page-title-wrap {
  margin-bottom: 32px;
}

.page-lead,
.page-intro,
.page-subtitle {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 720px;
  line-height: 1.7;
}

/* Footer */
.site-footer {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: 64px;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr) 1.4fr;
  gap: 40px;
}

.footer-col h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}

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

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

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

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
}

.footer-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.footer-copyright {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: auto;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius);
  transition: background-color var(--transition), color var(--transition), border-color var(--transition);
  min-height: 44px;
}

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  color: #fff;
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

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

/* ============================================================
   Components
   ============================================================ */

/* Section heading */
.section-heading {
  margin-bottom: 32px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}

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

/* Content media */
.content-media {
  margin: 0;
}

.content-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
}

.content-media figcaption {
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 8px 4px 0;
  line-height: 1.5;
}

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

.content-media-inline {
  margin: 24px 0;
}

/* FAQ item (details/summary) */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-surface);
  overflow: hidden;
}

.faq-item + .faq-item {
  margin-top: 12px;
}

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

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

.faq-question::after {
  content: "+";
  font-size: 20px;
  font-weight: 400;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item[open] .faq-question {
  background-color: var(--color-primary-light);
}

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

.faq-answer {
  padding: 0 20px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.faq-answer p {
  margin-bottom: 8px;
}

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

/* Related links (aside / nav) */
.related-links {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

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

.related-links-item {
  font-size: 14px;
  color: var(--color-primary);
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: border-color var(--transition), background-color var(--transition);
}

.related-links-item:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

/* Tables */
.table-wrap,
.table-wrapper,
.table-scroll {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

table {
  min-width: 640px;
}

thead th {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 14px;
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

tbody td {
  padding: 12px 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background-color: var(--color-bg);
}

/* Entry links */
.entry-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.entry-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 500;
  transition: background-color var(--transition), color var(--transition);
}

.entry-link:hover {
  background-color: var(--color-primary);
  color: #fff;
}

/* Inline link */
.inline-link {
  color: var(--color-primary);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ============================================================
   Homepage (index.html)
   ============================================================ */
.home-main {
  overflow: visible;
}

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

.hero-section .site-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  padding-top: 64px;
  padding-bottom: 64px;
}

.hero-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.25;
  margin-bottom: 16px;
}

.hero-title span {
  color: var(--color-primary);
}

.hero-lead {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero-entry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.entry-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-bg);
  transition: border-color var(--transition), background-color var(--transition), box-shadow var(--transition);
}

.entry-card:hover {
  border-color: var(--color-primary);
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.entry-icon {
  font-size: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary-light);
  border-radius: 6px;
}

.entry-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
}

.hero-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.links-label {
  font-size: 13px;
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

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

.hero-link:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.hero-media {
  position: relative;
}

.hero-figure {
  margin: 0;
}

.hero-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  object-fit: cover;
}

/* Service matrix (home) */
.service-matrix-section {
  padding: 64px 0;
}

.service-matrix-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  align-items: start;
}

.service-list-col {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.service-tab-list {
  display: flex;
  flex-direction: column;
}

.service-tab-item {
  border-bottom: 1px solid var(--color-border);
}

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

.service-tab-btn {
  display: block;
  width: 100%;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  text-align: left;
  transition: background-color var(--transition), color var(--transition);
}

.service-tab-btn:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.service-tab-btn.is-active {
  background-color: var(--color-primary);
  color: #fff;
}

.service-detail-col {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.service-detail-panel[hidden] {
  display: none;
}

.detail-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.detail-overview {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

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

.detail-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 8px;
}

.detail-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

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

.detail-link:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Process preview (home) */
.process-preview-section {
  padding: 64px 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.step-item {
  text-align: center;
  padding: 24px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-bg);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.step-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
}

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

.step-desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.process-more {
  text-align: center;
}

/* Scenario preview (home) */
.scenario-preview-section {
  padding: 64px 0;
}

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

.scenario-card {
  padding: 28px 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.scenario-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.scenario-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.scenario-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

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

.scenario-link:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* FAQ preview (home) */
.faq-preview-section {
  padding: 64px 0;
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.faq-preview-list {
  max-width: 800px;
  margin: 0 auto 32px;
}

.faq-more {
  text-align: center;
}

/* ============================================================
   Service page (718cg/service.html)
   ============================================================ */
.sidebar-left {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 32px 24px 64px;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  align-items: start;
}

.sidebar-left .page-sidebar {
  order: 1;
}

.sidebar-left .inner-main {
  order: 2;
  padding: 0;
  max-width: none;
}

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

.sidebar-block {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
}

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

.filter-tags {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.filter-tag {
  display: block;
  width: 100%;
  padding: 10px 16px;
  font-size: 14px;
  color: var(--color-text);
  text-align: left;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background-color: var(--color-surface);
  transition: border-color var(--transition), background-color var(--transition), color var(--transition);
}

.filter-tag:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-tag.is-active {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* Service catalog */
.service-catalog {
  margin-bottom: 48px;
}

.service-list-detail {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  align-items: start;
}

.service-list-col {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.service-list-item {
  display: block;
  width: 100%;
  padding: 16px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  transition: background-color var(--transition);
}

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

.service-list-item:hover {
  background-color: var(--color-primary-light);
}

.service-list-item.is-active {
  background-color: var(--color-primary);
}

.service-list-name {
  display: block;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 4px;
}

.service-list-item.is-active .service-list-name {
  color: #fff;
}

.service-list-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--color-text-secondary);
  background-color: var(--color-bg);
  padding: 2px 8px;
  border-radius: 999px;
}

.service-list-item.is-active .service-list-tag {
  background-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.service-detail-panel {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.service-detail-panel[hidden] {
  display: none;
}

.service-detail-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.service-detail-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-sub-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin: 20px 0 8px;
}

.service-point-list {
  margin-bottom: 16px;
}

.service-point-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 6px;
}

.service-point-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

.service-inquiry-tip {
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: 12px 16px;
  background-color: var(--color-bg);
  border-radius: 6px;
  border-left: 3px solid var(--color-primary);
}

/* Deliverable */
.deliverable-section {
  margin-bottom: 48px;
}

.deliverable-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.deliverable-card {
  padding: 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.deliverable-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.deliverable-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

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

/* Compare table */
.compare-section {
  margin-bottom: 48px;
}

/* Field dict */
.field-dict {
  margin-top: 24px;
}

.dict-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.dict-term {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.dict-def {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Source note */
.source-note-list {
  margin-top: 12px;
}

.source-note-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 8px;
}

.source-note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* Related entry */
.related-entry {
  margin-top: 48px;
}

.related-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.related-link {
  font-size: 14px;
  color: var(--color-primary);
  padding: 8px 16px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: border-color var(--transition), background-color var(--transition);
}

.related-link:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-light);
}

/* ============================================================
   Scenario page (718cg/scenario.html)
   ============================================================ */
.scenario-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0;
}

.scenario-tab {
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
  min-height: 44px;
}

.scenario-tab:hover {
  color: var(--color-primary);
}

.scenario-tab.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

.scenario-panel[hidden] {
  display: none;
}

.panel-head {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 32px;
  align-items: center;
  margin-bottom: 32px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.panel-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

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

.panel-figure {
  margin: 0;
}

.panel-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--radius);
}

.panel-content {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 32px;
}

.sub-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin: 24px 0 12px;
}

.sub-title:first-child {
  margin-top: 0;
}

.match-table {
  margin-bottom: 24px;
}

.action-list {
  counter-reset: action;
  padding-left: 0;
}

.action-list li {
  counter-increment: action;
  position: relative;
  padding-left: 36px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: 10px;
}

.action-list li::before {
  content: counter(action);
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Related entry on scenario */
.related-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.related-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

/* ============================================================
   Support page (718cg/support.html)
   ============================================================ */
.support-overview {
  margin-bottom: 48px;
}

.support-card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.support-card {
  padding: 24px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.support-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

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

.support-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Flow section */
.flow-section {
  margin-bottom: 48px;
}

.flow-figure {
  margin: 24px 0;
}

.flow-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
}

.flow-figure figcaption {
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 8px 4px 0;
}

.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.flow-step {
  padding: 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  position: relative;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
}

.flow-step h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.flow-step p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Dict table */
.dict-section {
  margin-bottom: 48px;
}

.dict-table {
  min-width: 640px;
}

/* Source note */
.source-note-section {
  margin-bottom: 48px;
}

.source-note-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.source-note-card {
  padding: 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.source-note-card h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.source-note-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.boundary-note {
  margin-top: 24px;
  padding: 16px 20px;
  background-color: var(--color-primary-light);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 14px;
  color: var(--color-primary-dark);
  line-height: 1.6;
}

/* Related list (support) */
.related-list {
  margin-top: 12px;
}

.related-list li {
  margin-bottom: 8px;
}

.related-list .related-link {
  display: inline-block;
}

/* ============================================================
   Progress page (718cg/progress.html)
   ============================================================ */
.stage-timeline {
  margin-bottom: 48px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  position: relative;
  padding-bottom: 32px;
}

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

.timeline-item::before {
  content: "";
  position: absolute;
  left: 23px;
  top: 48px;
  bottom: 0;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-marker {
  position: relative;
  z-index: 1;
}

.timeline-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
}

.timeline-content {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.timeline-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.timeline-goal {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 8px;
}

.timeline-work {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}

.timeline-meta {
  font-size: 13px;
  color: var(--color-text-secondary);
  background-color: var(--color-bg);
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
}

/* Deliverable table */
.deliverable-table-section {
  margin-bottom: 48px;
}

.deliverable-table {
  min-width: 640px;
}

/* Review note */
.review-note {
  margin-bottom: 48px;
}

.review-list {
  margin-top: 16px;
}

.review-item {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 12px;
}

.review-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* Progress visual */
.progress-visual {
  margin-bottom: 48px;
}

.progress-figure {
  margin-top: 24px;
}

.progress-image-block {
  margin: 0;
}

.progress-image {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  object-fit: cover;
}

.progress-caption {
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 8px 4px 0;
}

/* Related list (progress) */
.related-item {
  margin-bottom: 8px;
}

.related-item .related-link {
  font-size: 14px;
  color: var(--color-primary);
}

.related-item .related-link:hover {
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ============================================================
   Process page (718cg/process.html)
   ============================================================ */
.step-list {
  margin-bottom: 48px;
}

.step-list h2 {
  margin-bottom: 8px;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.step-card {
  padding: 24px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.step-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.step-card .step-number {
  margin-bottom: 12px;
}

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

.step-card p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 8px;
}

.step-card .step-output {
  font-size: 13px;
  color: var(--color-primary);
  font-weight: 500;
  margin-bottom: 0;
}

/* Responsibility table */
.responsibility-section {
  margin-bottom: 48px;
}

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

.responsibility-section > p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.responsibility-table {
  min-width: 640px;
}

/* Preparation list */
.preparation-section {
  margin-bottom: 48px;
}

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

.preparation-section > p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.preparation-list {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 32px;
}

.preparation-list li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: 12px;
}

.preparation-list li:last-child {
  margin-bottom: 0;
}

.preparation-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-primary);
}

/* Consult entry */
.consult-entry {
  margin-bottom: 48px;
}

.consult-entry h2 {
  margin-bottom: 8px;
}

.consult-entry > p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

/* ============================================================
   FAQ page (718cg/faq.html)
   ============================================================ */
.faq-group {
  margin-bottom: 48px;
}

.faq-group-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary-light);
}

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

/* Consult entry (faq) */
.consult-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

.consult-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.consult-text {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.consult-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 28px;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  min-height: 44px;
  transition: background-color var(--transition);
}

.consult-link:hover {
  background-color: var(--color-primary-dark);
  color: #fff;
}

/* ============================================================
   About page (718cg/about.html)
   ============================================================ */
.about-section {
  margin-bottom: 48px;
}

.mission-section .section-inner {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  align-items: center;
}

.mission-copy .section-heading {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

.mission-text {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.mission-text:last-child {
  margin-bottom: 0;
}

.mission-figure {
  margin: 0;
}

.mission-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
  border-radius: var(--radius);
}

.figure-caption {
  font-size: 13px;
  color: var(--color-text-secondary);
  padding: 8px 4px 0;
}

.method-section .section-heading {
  margin-bottom: 8px;
}

.method-section .section-desc {
  margin-bottom: 24px;
}

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

.method-card {
  padding: 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: box-shadow var(--transition), border-color var(--transition);
}

.method-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

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

.method-text {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.compliance-section .section-heading {
  margin-bottom: 8px;
}

.compliance-section .section-desc {
  margin-bottom: 24px;
}

.compliance-list {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 32px;
}

.compliance-item {
  position: relative;
  padding-left: 28px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: 12px;
}

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

.compliance-item::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.cooperation-entry-section .section-heading {
  margin-bottom: 8px;
}

.cooperation-entry-section .section-desc {
  margin-bottom: 24px;
}

/* ============================================================
   404 Page
   ============================================================ */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 48px 24px;
}

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

.error-code {
  font-size: 64px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
}

.error-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.error-back {
  display: inline-flex;
  align-items: center;
  padding: 10px 28px;
  background-color: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  min-height: 44px;
  transition: background-color var(--transition);
}

.error-back:hover {
  background-color: var(--color-primary-dark);
  color: #fff;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .hero-section .site-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-media {
    order: -1;
  }

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

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

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

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

  .sidebar-left .page-sidebar {
    order: 0;
  }

  .sidebar-left .inner-main {
    order: 1;
  }

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

  .panel-head {
    grid-template-columns: 1fr;
  }

  .panel-figure {
    max-width: 400px;
  }

  .mission-section .section-inner {
    grid-template-columns: 1fr;
  }

  .mission-figure {
    max-width: 480px;
  }

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

@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
    min-height: 60px;
    flex-wrap: wrap;
  }

  .brand-logo {
    padding: 8px 0;
  }

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

  .site-nav .nav-list {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 2px;
    padding: 8px 0;
    border-top: 1px solid var(--color-border);
  }

  .nav-item {
    flex: 1 1 auto;
  }

  .nav-link {
    padding: 6px 10px;
    font-size: 14px;
    text-align: center;
  }

  .nav-link.is-current::after {
    left: 10px;
    right: 10px;
  }

  .site-main.inner-main {
    padding: 24px 16px 48px;
  }

  .sidebar-left {
    padding: 24px 16px 48px;
  }

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

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

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

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

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

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

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

  .source-note-grid {
    grid-template-columns: 1fr;
  }

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

  .scenario-tabs {
    flex-wrap: wrap;
  }

  .scenario-tab {
    flex: 1 1 auto;
    text-align: center;
  }

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

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

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

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

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

  .footer-brand-col {
    order: -1;
  }

  .footer-copyright {
    margin-top: 0;
  }

  .breadcrumb {
    margin-bottom: 16px;
    font-size: 13px;
    flex-wrap: wrap;
  }

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

  .table-wrap,
  .table-wrapper,
  .table-scroll {
    margin: 0 -16px;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  table {
    min-width: 560px;
  }

  .timeline-item {
    grid-template-columns: 40px 1fr;
    gap: 16px;
  }

  .timeline-index {
    width: 40px;
    height: 40px;
    font-size: 14px;
  }

  .timeline-item::before {
    left: 19px;
  }

  .panel-head {
    padding: 24px;
  }

  .panel-content {
    padding: 24px;
  }

  .service-detail-panel {
    padding: 24px;
  }

  .service-detail-col {
    padding: 24px;
  }
}

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

  .hero-actions {
    flex-direction: column;
  }

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

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

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

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

  .support-card-grid {
    grid-template-columns: 1fr;
  }

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

  .nav-link {
    font-size: 13px;
    padding: 6px 6px;
  }

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

  .brand-slogan {
    font-size: 11px;
  }

  .entry-card {
    padding: 12px;
  }

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

  .timeline-item {
    grid-template-columns: 32px 1fr;
  }

  .timeline-index {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }

  .timeline-item::before {
    left: 15px;
  }

  .timeline-content {
    padding: 16px;
  }

  .mission-figure {
    max-width: 100%;
  }

  .mission-image {
    height: 200px;
  }

  .panel-image {
    height: 180px;
  }

  .preparation-list {
    padding: 20px;
  }

  .compliance-list {
    padding: 20px;
  }
}