/* ==========================================================
   base / reset
   ========================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: #1d2328;
  background-color: #f7f6f3;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

figure {
  margin: 0;
}

a {
  color: #0f6b75;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #ff5d1f;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 700;
  line-height: 1.35;
  color: #1d2328;
}

p {
  margin: 0;
}

ul, ol {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

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

button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
  color: inherit;
}

summary {
  cursor: pointer;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================
   layout / shared shell
   ========================================================== */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: #f7f6f3;
}

.site-main {
  flex: 1;
}

.site-header {
  background-color: #ffffff;
  border-bottom: 1px solid #e3e7e6;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  flex-shrink: 0;
}

.brand-link {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  text-decoration: none;
}

.brand-name {
  font-size: 20px;
  font-weight: 700;
  color: #1d2328;
  letter-spacing: 0.02em;
}

.brand-tag {
  font-size: 12px;
  color: #5d666e;
  margin-top: 2px;
}

.brand-link:hover .brand-name {
  color: #ff5d1f;
}

.site-nav {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  position: relative;
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background-color: #1d2328;
  position: absolute;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle-icon {
  position: relative;
}

.nav-toggle-icon::before {
  transform: translateY(-7px);
}

.nav-toggle-icon::after {
  transform: translateY(7px);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background-color: transparent;
}

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

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
}

.nav-list li {
  margin: 0;
}

.nav-list a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: #1d2328;
  border-radius: 4px;
  line-height: 1.5;
  min-height: 44px;
  display: flex;
  align-items: center;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-list a:hover {
  background-color: #f7f6f3;
  color: #ff5d1f;
}

.nav-list a.is-current {
  color: #ff5d1f;
  background-color: rgba(255, 93, 31, 0.08);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  background-color: #ff5d1f;
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  border-radius: 4px;
  flex-shrink: 0;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.header-cta:hover {
  background-color: #e04e12;
  color: #ffffff;
}

.site-footer {
  background-color: #141a1e;
  color: #aeb9bf;
  margin-top: 0;
}

.footer-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 24px 40px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
}

.footer-col {
  min-width: 0;
}

.footer-brand {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #aeb9bf;
  margin-bottom: 8px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-col p {
  font-size: 14px;
  line-height: 1.7;
  color: #aeb9bf;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #7a858c;
  margin: 0;
}

/* ==========================================================
   shared components
   ========================================================== */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #5d666e;
  margin-bottom: 24px;
  padding-top: 24px;
}

.breadcrumb a {
  color: #0f6b75;
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.breadcrumb a:hover {
  color: #ff5d1f;
}

.breadcrumb-sep {
  color: #aeb9bf;
  display: inline-flex;
  align-items: center;
}

.breadcrumb-current {
  color: #5d666e;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.page-header {
  background-color: #f7f6f3;
  border-bottom: 1px solid #e3e7e6;
  padding: 48px 0 40px;
  margin-bottom: 48px;
}

.page-header .page-title,
.page-header .page-description {
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.page-title {
  font-size: 34px;
  font-weight: 700;
  color: #1d2328;
  margin-bottom: 12px;
  line-height: 1.3;
}

.page-description {
  font-size: 16px;
  line-height: 1.8;
  color: #5d666e;
  max-width: 760px;
}

.inner-main {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.inner-main .breadcrumb {
  padding-left: 0;
  padding-right: 0;
  margin-bottom: 32px;
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 4px;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background-color: #ff5d1f;
  color: #ffffff;
}

.btn-primary:hover {
  background-color: #e04e12;
  color: #ffffff;
}

.btn-secondary {
  background-color: transparent;
  border-color: #0f6b75;
  color: #0f6b75;
}

.btn-secondary:hover {
  background-color: rgba(15, 107, 117, 0.08);
  color: #0f6b75;
}

/* section title */
.section-title {
  font-size: 28px;
  font-weight: 700;
  color: #1d2328;
  line-height: 1.3;
}

.section-intro {
  font-size: 16px;
  line-height: 1.8;
  color: #5d666e;
  max-width: 640px;
}

/* text link */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #0f6b75;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  min-height: 44px;
  padding: 0 4px;
}

.text-link:hover {
  color: #ff5d1f;
}

.text-link::after {
  content: "→";
  font-size: 16px;
  line-height: 1;
}

/* related links nav */
.related-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 24px 0;
  border-top: 1px solid #e3e7e6;
  margin-top: 48px;
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: #1d2328;
  margin-right: 8px;
}

.related-links-item {
  font-size: 14px;
  color: #0f6b75;
  text-decoration: none;
  padding: 8px 12px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.related-links-item:hover {
  background-color: rgba(15, 107, 117, 0.08);
  color: #ff5d1f;
}

/* ==========================================================
   index page
   ========================================================== */
.home-main {
  width: 100%;
}

.hero-section {
  background-color: #ffffff;
  border-bottom: 1px solid #e3e7e6;
  padding: 72px 0 64px;
}

.hero-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.hero-copy {
  min-width: 0;
}

.hero-title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.25;
  color: #1d2328;
  margin-bottom: 20px;
}

.hero-lead {
  font-size: 17px;
  line-height: 1.8;
  color: #5d666e;
  margin-bottom: 32px;
  max-width: 560px;
}

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

.hero-figure {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  background-color: #eef0ee;
  aspect-ratio: 4 / 3;
}

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

/* service index strip */
.service-index-strip {
  background-color: #f7f6f3;
  border-bottom: 1px solid #e3e7e6;
}

.strip-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.strip-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 32px 24px;
  text-decoration: none;
  border-left: 1px solid #e3e7e6;
  transition: background-color 0.2s ease;
  min-height: 88px;
}

.strip-item:first-child {
  border-left: none;
}

.strip-item:hover {
  background-color: #ffffff;
}

.strip-num {
  font-size: 28px;
  font-weight: 700;
  color: #ff5d1f;
  line-height: 1;
  flex-shrink: 0;
}

.strip-label {
  font-size: 16px;
  font-weight: 600;
  color: #1d2328;
  line-height: 1.4;
}

/* service detail section */
.service-detail-section {
  background-color: #ffffff;
}

.detail-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.service-entry {
  display: grid;
  grid-template-columns: 88px 1fr 1fr;
  gap: 48px;
  padding: 72px 0;
  border-bottom: 1px solid #e3e7e6;
  align-items: start;
}

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

.entry-index {
  font-size: 20px;
  font-weight: 700;
  color: #ff5d1f;
  padding-top: 8px;
  line-height: 1;
}

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

.entry-title {
  font-size: 26px;
  font-weight: 700;
  color: #1d2328;
  margin-bottom: 16px;
  line-height: 1.3;
}

.entry-desc {
  font-size: 16px;
  line-height: 1.8;
  color: #5d666e;
  margin-bottom: 24px;
}

.entry-output {
  background-color: #f7f6f3;
  border-left: 3px solid #0f6b75;
  padding: 20px 24px;
  border-radius: 0 4px 4px 0;
}

.entry-output h3 {
  font-size: 14px;
  font-weight: 600;
  color: #0f6b75;
  margin-bottom: 8px;
}

.entry-output ul {
  padding: 0;
  margin: 0;
}

.entry-output li {
  font-size: 15px;
  line-height: 1.7;
  color: #1d2328;
  padding-left: 16px;
  position: relative;
}

.entry-output li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #0f6b75;
}

.entry-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #eef0ee;
  aspect-ratio: 16 / 10;
}

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

/* process preview */
.process-preview {
  background-color: #f7f6f3;
  padding: 72px 0;
}

.preview-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.process-preview .section-title {
  margin-bottom: 16px;
}

.process-preview .section-intro {
  margin-bottom: 48px;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}

.step-item {
  position: relative;
  padding-top: 48px;
  border-top: 2px solid #e3e7e6;
}

.step-num {
  position: absolute;
  top: -1px;
  left: 0;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  background-color: #ff5d1f;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 50%;
}

.step-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #5d666e;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #0f6b75;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  min-height: 44px;
}

.link-more:hover {
  color: #ff5d1f;
}

.link-more::after {
  content: "→";
  font-size: 16px;
}

/* faq preview */
.faq-preview {
  background-color: #ffffff;
  padding: 72px 0;
}

.faq-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.faq-preview .section-title {
  margin-bottom: 40px;
}

.faq-item {
  border-bottom: 1px solid #e3e7e6;
  padding: 24px 0;
}

.faq-question {
  font-size: 17px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 8px;
  padding-right: 40px;
  position: relative;
}

.faq-question::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  font-size: 22px;
  color: #0f6b75;
  font-weight: 400;
}

.faq-answer {
  font-size: 15px;
  line-height: 1.8;
  color: #5d666e;
  max-width: 760px;
}

.faq-preview .link-more {
  margin-top: 32px;
}

/* boundary tip */
.boundary-tip {
  background-color: #f7f6f3;
  border-top: 1px solid #e3e7e6;
  border-bottom: 1px solid #e3e7e6;
  padding: 48px 0;
}

.tip-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.tip-text {
  font-size: 15px;
  line-height: 1.7;
  color: #5d666e;
  flex: 1;
  min-width: 280px;
}

.tip-shell .link-more {
  flex-shrink: 0;
}

/* support cta */
.support-cta {
  background-color: #ffffff;
  padding: 72px 0;
}

.support-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.support-shell .section-title {
  margin-bottom: 16px;
}

.support-desc {
  font-size: 16px;
  line-height: 1.8;
  color: #5d666e;
  max-width: 720px;
  margin-bottom: 40px;
}

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

/* ==========================================================
   service page
   ========================================================== */
.page-layout.sidebar-left {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 64px;
  align-items: start;
}

.section-catalog {
  position: sticky;
  top: 96px;
  padding-top: 8px;
}

.catalog-title {
  font-size: 14px;
  font-weight: 600;
  color: #5d666e;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.catalog-list {
  padding: 0;
  margin: 0;
  border-left: 1px solid #e3e7e6;
}

.catalog-list li {
  margin: 0;
}

.catalog-list a {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  color: #1d2328;
  text-decoration: none;
  border-left: 3px solid transparent;
  margin-left: -1px;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.catalog-list a:hover {
  color: #0f6b75;
  border-left-color: #0f6b75;
  background-color: rgba(15, 107, 117, 0.04);
}

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

.service-section {
  padding: 48px 0;
  border-bottom: 1px solid #e3e7e6;
  scroll-margin-top: 96px;
}

.service-section:first-of-type {
  padding-top: 0;
}

.service-section:last-of-type {
  border-bottom: none;
}

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

.section-number {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: #ff5d1f;
  margin-bottom: 8px;
}

.section-heading h2 {
  font-size: 26px;
  font-weight: 700;
  color: #1d2328;
  line-height: 1.3;
  margin-bottom: 12px;
}

.service-section > p {
  font-size: 16px;
  line-height: 1.8;
  color: #5d666e;
  margin-bottom: 16px;
  max-width: 720px;
}

.service-detail-block {
  padding: 24px 0;
  border-bottom: 1px solid #f0f2f1;
}

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

.service-detail-block h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 8px;
}

.service-detail-block p {
  font-size: 15px;
  line-height: 1.8;
  color: #5d666e;
}

.service-figure {
  margin: 32px 0;
  border-radius: 8px;
  overflow: hidden;
  background-color: #eef0ee;
  aspect-ratio: 16 / 9;
}

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

.service-figure figcaption {
  font-size: 13px;
  color: #5d666e;
  padding: 12px 16px;
  background-color: #f7f6f3;
  line-height: 1.6;
}

.next-step-links {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding: 24px 0;
}

/* ==========================================================
   process page
   ========================================================== */
.process-overview {
  padding: 48px 0;
  border-bottom: 1px solid #e3e7e6;
}

.process-overview .section-title {
  margin-bottom: 16px;
}

.overview-note {
  font-size: 16px;
  color: #5d666e;
  margin-bottom: 32px;
  max-width: 640px;
}

.overview-list {
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.overview-list li {
  margin: 0;
}

.overview-list a {
  display: block;
  padding: 16px;
  background-color: #f7f6f3;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 500;
  color: #1d2328;
  text-decoration: none;
  border: 1px solid #e3e7e6;
  min-height: 64px;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.overview-list a:hover {
  border-color: #0f6b75;
  color: #0f6b75;
  background-color: #ffffff;
}

.process-stage {
  padding: 64px 0;
  border-bottom: 1px solid #e3e7e6;
}

.process-stage:last-of-type {
  border-bottom: none;
}

.stage-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 32px;
}

.stage-number {
  font-size: 20px;
  font-weight: 700;
  color: #ff5d1f;
  line-height: 1;
}

.stage-title {
  font-size: 26px;
  font-weight: 700;
  color: #1d2328;
}

.stage-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-bottom: 24px;
}

.stage-col h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid #0f6b75;
  display: inline-block;
}

.stage-col ul {
  padding: 0;
  margin: 0;
}

.stage-col li {
  font-size: 15px;
  line-height: 1.7;
  color: #5d666e;
  padding-left: 20px;
  position: relative;
  margin-bottom: 8px;
}

.stage-col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #0f6b75;
  opacity: 0.7;
}

.stage-tip {
  font-size: 14px;
  line-height: 1.7;
  color: #5d666e;
  background-color: #f7f6f3;
  border-left: 3px solid #ff5d1f;
  padding: 12px 20px;
  border-radius: 0 4px 4px 0;
}

.stage-intro {
  font-size: 16px;
  line-height: 1.8;
  color: #5d666e;
  margin-bottom: 32px;
  max-width: 720px;
}

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

.confirm-item {
  background-color: #f7f6f3;
  border: 1px solid #e3e7e6;
  border-radius: 6px;
  padding: 24px;
}

.confirm-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 12px;
}

.confirm-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #5d666e;
}

.stage-figure {
  margin: 32px 0;
  border-radius: 8px;
  overflow: hidden;
  background-color: #eef0ee;
  aspect-ratio: 16 / 8;
}

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

.stage-figure figcaption {
  font-size: 13px;
  color: #5d666e;
  padding: 12px 16px;
  background-color: #f7f6f3;
  line-height: 1.6;
}

.schedule-list {
  padding: 0;
  margin: 0;
  counter-reset: schedule;
}

.schedule-list > li {
  position: relative;
  padding-left: 56px;
  padding-bottom: 32px;
  counter-increment: schedule;
}

.schedule-list > li::before {
  content: counter(schedule);
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #0f6b75;
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.schedule-list > li::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 40px;
  bottom: 0;
  width: 2px;
  background-color: #e3e7e6;
}

.schedule-list > li:last-child::after {
  display: none;
}

.schedule-list h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 8px;
}

.schedule-list p {
  font-size: 15px;
  line-height: 1.7;
  color: #5d666e;
}

.stage-note {
  font-size: 14px;
  color: #5d666e;
  margin-top: 24px;
}

.delivery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.delivery-block {
  background-color: #f7f6f3;
  border-radius: 6px;
  padding: 24px;
}

.delivery-block h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 12px;
}

.delivery-block p {
  font-size: 14px;
  line-height: 1.7;
  color: #5d666e;
}

.review-content {
  max-width: 720px;
}

.review-content p {
  font-size: 15px;
  line-height: 1.8;
  color: #5d666e;
  margin-bottom: 16px;
}

.review-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 24px;
}

.related-list {
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.related-list a {
  display: block;
  padding: 16px 20px;
  background-color: #ffffff;
  border: 1px solid #e3e7e6;
  border-radius: 6px;
  font-size: 15px;
  color: #1d2328;
  text-decoration: none;
  min-height: 56px;
  display: flex;
  align-items: center;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.related-list a:hover {
  border-color: #0f6b75;
  color: #0f6b75;
}

/* ==========================================================
   start page
   ========================================================== */
.prep-checklist,
.permission-and-role,
.keyword-and-topic,
.first-delivery-schedule {
  padding: 48px 0;
  border-bottom: 1px solid #e3e7e6;
  scroll-margin-top: 96px;
}

.step-number {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: #ff5d1f;
  margin-bottom: 8px;
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.check-item {
  background-color: #f7f6f3;
  border: 1px solid #e3e7e6;
  border-radius: 6px;
  padding: 24px;
}

.check-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 12px;
  padding-left: 32px;
  position: relative;
}

.check-item h3::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: #0f6b75;
  color: #ffffff;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.check-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #5d666e;
}

.role-table-wrap {
  overflow-x: auto;
  margin-top: 32px;
}

.role-table {
  width: 100%;
  min-width: 640px;
  border: 1px solid #e3e7e6;
}

.role-table th,
.role-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid #e3e7e6;
  font-size: 15px;
  line-height: 1.6;
}

.role-table thead th {
  background-color: #f7f6f3;
  font-weight: 600;
  color: #1d2328;
  border-bottom: 2px solid #e3e7e6;
}

.role-table tbody th {
  font-weight: 500;
  color: #1d2328;
  background-color: #ffffff;
}

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

.role-table tbody td {
  color: #5d666e;
}

.role-note {
  font-size: 14px;
  color: #5d666e;
  margin-top: 16px;
}

.topic-config-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 32px;
  align-items: start;
}

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

.config-item {
  padding: 20px 0;
  border-bottom: 1px solid #f0f2f1;
}

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

.config-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 8px;
}

.config-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #5d666e;
}

.topic-image {
  border-radius: 8px;
  overflow: hidden;
  background-color: #eef0ee;
  aspect-ratio: 4 / 3;
}

.topic-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.topic-image figcaption {
  font-size: 13px;
  color: #5d666e;
  padding: 12px 16px;
  background-color: #f7f6f3;
  line-height: 1.6;
}

.schedule-tip {
  font-size: 14px;
  color: #5d666e;
  margin-top: 24px;
}

.support-next {
  padding: 48px 0;
  border-bottom: 1px solid #e3e7e6;
}

.support-next p {
  font-size: 15px;
  line-height: 1.8;
  color: #5d666e;
  max-width: 720px;
  margin-bottom: 16px;
}

/* ==========================================================
   faq page
   ========================================================== */
.faq-category-index {
  padding: 48px 0;
  border-bottom: 1px solid #e3e7e6;
}

.faq-category-index .section-title {
  margin-bottom: 32px;
}

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

.category-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  background-color: #ffffff;
  border: 1px solid #e3e7e6;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 600;
  color: #1d2328;
  text-decoration: none;
  min-height: 64px;
  transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.category-link:hover {
  border-color: #0f6b75;
  color: #0f6b75;
  background-color: rgba(15, 107, 117, 0.04);
}

.faq-group {
  padding: 48px 0;
  border-bottom: 1px solid #e3e7e6;
}

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

.faq-accordion {
  max-width: 860px;
}

.faq-accordion .faq-item {
  background-color: #ffffff;
  border: 1px solid #e3e7e6;
  border-radius: 6px;
  margin-bottom: 16px;
  overflow: hidden;
}

.faq-accordion summary {
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: #1d2328;
  line-height: 1.5;
  padding-right: 56px;
  position: relative;
  min-height: 64px;
  display: flex;
  align-items: center;
  transition: color 0.2s ease;
}

.faq-accordion summary::after {
  content: "+";
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  color: #0f6b75;
  font-weight: 400;
  line-height: 1;
}

.faq-accordion details[open] summary {
  color: #0f6b75;
  border-bottom: 1px solid #e3e7e6;
}

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

.faq-accordion summary:hover {
  color: #0f6b75;
}

.faq-accordion .faq-answer {
  padding: 16px 24px 20px;
}

.faq-accordion .faq-answer p {
  font-size: 15px;
  line-height: 1.8;
  color: #5d666e;
  margin-bottom: 8px;
}

.faq-accordion .faq-answer a {
  color: #0f6b75;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.faq-answer-with-image {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 32px;
  background-color: #f7f6f3;
  border-radius: 8px;
  padding: 32px;
}

.issue-path-content {
  min-width: 0;
}

.issue-path-content p {
  font-size: 15px;
  line-height: 1.8;
  color: #5d666e;
  margin-bottom: 16px;
}

.issue-steps {
  padding: 0;
  margin: 0;
  counter-reset: issue;
}

.issue-steps li {
  counter-increment: issue;
  padding-left: 40px;
  position: relative;
  font-size: 15px;
  line-height: 1.7;
  color: #5d666e;
  margin-bottom: 12px;
}

.issue-steps li::before {
  content: counter(issue);
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: #0f6b75;
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.issue-path-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #ffffff;
  aspect-ratio: 4 / 3;
}

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

.issue-path-figure figcaption {
  font-size: 13px;
  color: #5d666e;
  padding: 12px 16px;
  background-color: #ffffff;
  line-height: 1.6;
}

.support-next .related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.support-next .related-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 20px;
  background-color: #ffffff;
  border: 1px solid #e3e7e6;
  border-radius: 4px;
  font-size: 14px;
  color: #1d2328;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.support-next .related-links a:hover {
  border-color: #0f6b75;
  color: #0f6b75;
}

/* ==========================================================
   boundary page
   ========================================================== */
.page-title-area {
  background-color: #f7f6f3;
  border-bottom: 1px solid #e3e7e6;
}

.page-title-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
}

.layout-narrow {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 80px;
}

.boundary-compare {
  padding: 56px 0 48px;
  border-bottom: 1px solid #e3e7e6;
}

.boundary-compare h2 {
  font-size: 26px;
  font-weight: 700;
  color: #1d2328;
  margin-bottom: 12px;
}

.boundary-compare .section-intro {
  margin-bottom: 40px;
}

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.compare-col {
  border-radius: 8px;
  padding: 32px;
}

.do-col {
  background-color: #0f6b75;
}

.notdo-col {
  background-color: #ffffff;
  border: 1px solid #e3e7e6;
}

.compare-col h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
}

.do-col h3 {
  color: #ffffff;
}

.notdo-col h3 {
  color: #1d2328;
}

.do-list,
.notdo-list {
  padding: 0;
  margin: 0;
}

.do-list li,
.notdo-list li {
  padding-left: 28px;
  position: relative;
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 12px;
}

.do-list li {
  color: rgba(255, 255, 255, 0.92);
}

.notdo-list li {
  color: #5d666e;
}

.do-list li::before,
.notdo-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
}

.do-list li::before {
  background-color: rgba(255, 255, 255, 0.25);
}

.notdo-list li::before {
  background-color: #f0e4e1;
}

.principle-section {
  padding: 64px 0;
  border-bottom: 1px solid #e3e7e6;
}

.principle-section h2 {
  font-size: 26px;
  font-weight: 700;
  color: #1d2328;
  margin-bottom: 32px;
}

.content-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #eef0ee;
  aspect-ratio: 21 / 8;
  margin-bottom: 48px;
}

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

.principle-flow {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.principle-item {
  padding: 24px;
  background-color: #f7f6f3;
  border-radius: 6px;
  position: relative;
}

.principle-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #0f6b75;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
}

.principle-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 8px;
}

.principle-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #5d666e;
}

.responsibility-section {
  padding: 64px 0;
  border-bottom: 1px solid #e3e7e6;
}

.responsibility-section h2 {
  font-size: 26px;
  font-weight: 700;
  color: #1d2328;
  margin-bottom: 32px;
}

.responsibility-table-wrap {
  overflow-x: auto;
}

.responsibility-table {
  width: 100%;
  min-width: 640px;
  border: 1px solid #e3e7e6;
}

.responsibility-table th,
.responsibility-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid #e3e7e6;
  font-size: 15px;
  line-height: 1.6;
}

.responsibility-table thead th {
  background-color: #f7f6f3;
  font-weight: 600;
  color: #1d2328;
  border-bottom: 2px solid #e3e7e6;
}

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

.responsibility-table tbody th {
  font-weight: 600;
  color: #1d2328;
  background-color: #ffffff;
}

.responsibility-table tbody td {
  color: #5d666e;
}

.usage-limit-section {
  padding: 64px 0;
  border-bottom: 1px solid #e3e7e6;
}

.usage-limit-section h2 {
  font-size: 26px;
  font-weight: 700;
  color: #1d2328;
  margin-bottom: 32px;
}

.usage-limit-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.usage-item {
  background-color: #f7f6f3;
  border-radius: 6px;
  padding: 24px;
}

.usage-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 12px;
}

.usage-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #5d666e;
}

.boundary-note {
  background-color: #f7f6f3;
  border-left: 3px solid #0f6b75;
  padding: 20px 24px;
  border-radius: 0 4px 4px 0;
}

.boundary-note p {
  font-size: 14px;
  line-height: 1.7;
  color: #5d666e;
}

.boundary-note a {
  color: #0f6b75;
  text-decoration: underline;
  text-underline-offset: 3px;
  margin-right: 16px;
}

.next-step-area {
  padding: 48px 0;
}

.next-step-area h2 {
  font-size: 22px;
  font-weight: 700;
  color: #1d2328;
  margin-bottom: 32px;
}

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

.next-link {
  display: block;
  padding: 24px;
  background-color: #ffffff;
  border: 1px solid #e3e7e6;
  border-radius: 6px;
  text-decoration: none;
  min-height: 120px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.next-link:hover {
  border-color: #0f6b75;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.next-link-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 8px;
}

.next-link-desc {
  display: block;
  font-size: 14px;
  line-height: 1.6;
  color: #5d666e;
}

/* ==========================================================
   support page
   ========================================================== */
.support-category-intro {
  padding: 48px 0;
  border-bottom: 1px solid #e3e7e6;
}

.support-category-intro .section-title {
  margin-bottom: 32px;
}

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

.support-category-item {
  background-color: #f7f6f3;
  border: 1px solid #e3e7e6;
  border-radius: 6px;
  padding: 24px;
}

.category-num {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #ff5d1f;
  margin-bottom: 12px;
}

.support-category-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 8px;
}

.support-category-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #5d666e;
  margin-bottom: 16px;
}

.support-category-item a {
  font-size: 14px;
  font-weight: 500;
  color: #0f6b75;
  text-decoration: none;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.support-category-item a:hover {
  color: #ff5d1f;
}

.support-path-section {
  padding: 56px 0;
  border-bottom: 1px solid #e3e7e6;
}

.path-section-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 16px;
}

.path-num {
  font-size: 20px;
  font-weight: 700;
  color: #ff5d1f;
  line-height: 1;
}

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

.path-intro {
  font-size: 15px;
  line-height: 1.8;
  color: #5d666e;
  max-width: 720px;
  margin-bottom: 32px;
}

.path-list-wrap {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 32px;
}

.path-item {
  background-color: #f7f6f3;
  border-radius: 6px;
  padding: 24px;
}

.path-item h3 {
  font-size: 16px;
  font-weight: 600;
  color: #1d2328;
  margin-bottom: 12px;
  padding-left: 28px;
  position: relative;
}

.path-item h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: #0f6b75;
  opacity: 0.8;
}

.path-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #5d666e;
}

.path-next {
  background-color: #ffffff;
  border: 1px solid #e3e7e6;
  border-radius: 6px;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.path-next p {
  font-size: 14px;
  color: #5d666e;
  line-height: 1.7;
  flex: 1;
  min-width: 240px;
}

.support-figure {
  border-radius: 8px;
  overflow: hidden;
  background-color: #eef0ee;
  aspect-ratio: 21 / 7;
  margin-bottom: 32px;
}

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

.support-figure figcaption {
  font-size: 13px;
  color: #5d666e;
  padding: 12px 16px;
  background-color: #f7f6f3;
  line-height: 1.6;
}

.related-links-card {
  background-color: #f7f6f3;
  border: 1px solid #e3e7e6;
  border-radius: 8px;
  padding: 32px;
  margin-top: 48px;
}

.related-links-card h2 {
  font-size: 20px;
  font-weight: 700;
  color: #1d2328;
  margin-bottom: 12px;
}

.related-links-card p {
  font-size: 15px;
  color: #5d666e;
  margin-bottom: 20px;
}

.related-links-card ul {
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links-card li {
  margin: 0;
}

.related-links-card a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 20px;
  background-color: #ffffff;
  border: 1px solid #e3e7e6;
  border-radius: 4px;
  font-size: 14px;
  color: #1d2328;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.related-links-card a:hover {
  border-color: #0f6b75;
  color: #0f6b75;
}

/* ==========================================================
   404 page
   ========================================================== */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 72px - 280px);
  padding: 80px 24px;
}

.error-section {
  text-align: center;
  max-width: 640px;
  width: 100%;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: #ff5d1f;
  line-height: 1;
  margin-bottom: 24px;
}

.error-content h1 {
  font-size: 28px;
  font-weight: 700;
  color: #1d2328;
  margin-bottom: 16px;
}

.error-desc {
  font-size: 16px;
  line-height: 1.8;
  color: #5d666e;
  margin-bottom: 32px;
}

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

.error-link-primary,
.error-link-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 4px;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.error-link-primary {
  background-color: #ff5d1f;
  color: #ffffff;
}

.error-link-primary:hover {
  background-color: #e04e12;
  color: #ffffff;
}

.error-link-secondary {
  background-color: transparent;
  border: 1px solid #0f6b75;
  color: #0f6b75;
}

.error-link-secondary:hover {
  background-color: rgba(15, 107, 117, 0.08);
  color: #0f6b75;
}

/* ==========================================================
   responsive
   ========================================================== */
@media (max-width: 1024px) {
  .hero-shell {
    gap: 40px;
  }

  .hero-title {
    font-size: 34px;
  }

  .service-entry {
    grid-template-columns: 64px 1fr;
    gap: 32px;
  }

  .entry-figure {
    grid-column: 2;
    max-width: 560px;
  }

  .footer-shell {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-layout.sidebar-left {
    grid-template-columns: 200px 1fr;
    gap: 40px;
  }

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

  .confirm-items,
  .delivery-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .faq-answer-with-image {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

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

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

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

@media (max-width: 768px) {
  .header-shell {
    padding: 0 16px;
    height: 64px;
  }

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

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

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: static;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background-color: #ffffff;
    border-bottom: 1px solid #e3e7e6;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 16px 16px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
    z-index: 99;
  }

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

  .nav-list a {
    padding: 12px 8px;
    border-bottom: 1px solid #f0f2f1;
    border-radius: 0;
  }

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

  .header-cta {
    padding: 0 16px;
    font-size: 14px;
    min-height: 40px;
  }

  .hero-section {
    padding: 48px 0 40px;
  }

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

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

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

  .hero-figure {
    order: 2;
    width: 100%;
  }

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

  .strip-item {
    padding: 24px 16px;
    border-left: none;
    border-bottom: 1px solid #e3e7e6;
    min-height: 76px;
  }

  .service-entry {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 48px 0;
  }

  .entry-index {
    font-size: 16px;
  }

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

  .entry-figure {
    grid-column: 1;
    max-width: 100%;
    margin-top: 8px;
  }

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

  .support-links {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-shell {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 48px 16px 32px;
  }

  .footer-bottom {
    padding: 16px;
  }

  .inner-main {
    padding: 0 16px 64px;
  }

  .page-header {
    padding: 32px 0 24px;
    margin-bottom: 32px;
  }

  .page-header .page-title,
  .page-header .page-description {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .breadcrumb {
    margin-bottom: 16px;
    padding-top: 16px;
  }

  .page-layout.sidebar-left {
    display: block;
  }

  .section-catalog {
    display: none;
  }

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

  .service-section {
    padding: 32px 0;
  }

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

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

  .process-stage {
    padding: 40px 0;
  }

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

  .confirm-items,
  .delivery-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

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

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

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

  .path-next {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .related-links-card {
    padding: 24px;
  }

  .related-links-card ul {
    flex-direction: column;
    align-items: stretch;
  }

  .related-links-card a {
    justify-content: center;
  }

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

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

  .error-actions {
    flex-direction: column;
    align-items: center;
  }

  .error-link-primary,
  .error-link-secondary {
    width: 100%;
    max-width: 320px;
  }

  .layout-narrow {
    padding: 0 16px 64px;
  }

  .boundary-compare,
  .principle-section,
  .responsibility-section,
  .usage-limit-section {
    padding: 40px 0;
  }

  .compare-col {
    padding: 24px;
  }

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

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

  .faq-answer-with-image {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .faq-accordion summary {
    font-size: 15px;
  }
}

@media (max-width: 480px) {
  .header-cta {
    font-size: 13px;
    padding: 0 12px;
  }

  .brand-tag {
    display: none;
  }

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

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

  .strip-shell {
    grid-template-columns: 1fr;
  }

  .strip-item {
    border-bottom: 1px solid #e3e7e6;
  }

  .support-links {
    width: 100%;
  }

  .support-links .btn {
    width: 100%;
  }

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

  .related-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .related-links-item {
    width: 100%;
  }

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

/* ==========================================================
   reduced motion
   ========================================================== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 程序验收反馈：移动端正文优先 */
@media (max-width: 768px) {
  .site-main :is(.page-content, .main-content, .content-main) {
    order: 1;
  }

  .site-main :is(aside, .sidebar) {
    order: 2;
  }
}