:root {
  --color-primary: #23413c;
  --color-primary-dark: #1a322e;
  --color-accent: #c4703f;
  --color-accent-dark: #a95c31;
  --color-bg: #f7f5f1;
  --color-bg-alt: #e8e4dc;
  --color-text: #232323;
  --color-text-muted: #5c6b66;
  --color-border: #cfd6d2;
  --color-white: #ffffff;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-width: 1160px;
  --container-pad: 24px;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-sm: 0 1px 2px rgba(35, 65, 60, 0.06);
  --shadow-md: 0 4px 12px rgba(35, 65, 60, 0.08);
  --header-height: 68px;
  --transition: 0.2s ease;
}

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

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  font-weight: 400;
}

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-accent);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.35;
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

figure {
  margin: 0;
}

button {
  font-family: inherit;
  cursor: pointer;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

.header-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}

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

.nav-link:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-primary-dark);
}

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

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

.inner-main {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-pad) 72px;
}

.section {
  padding: 56px 0;
}

.section-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

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

.section-title {
  font-size: 22px;
  margin-bottom: 10px;
}

.section-desc,
.section-lead,
.section-intro {
  font-size: 15px;
  color: var(--color-text-muted);
  max-width: 760px;
}

.section-more {
  margin-top: 24px;
  font-size: 15px;
}

.text-link {
  color: var(--color-accent);
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.text-link:hover {
  border-bottom-color: var(--color-accent);
  color: var(--color-accent-dark);
}

/* ============================================================
   components: header / nav toggle
   ============================================================ */

.brand {
  display: inline-flex;
  align-items: center;
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.brand:hover {
  color: var(--color-accent);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   components: breadcrumb / page header
   ============================================================ */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 20px 0 0;
  font-size: 14px;
  color: var(--color-text-muted);
}

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

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

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

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

.page-header {
  padding: 20px 0 32px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 40px;
}

.page-title {
  font-size: 30px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.page-description {
  font-size: 16px;
  color: var(--color-text-muted);
  max-width: 760px;
}

/* ============================================================
   components: buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background-color var(--transition), border-color var(--transition), color var(--transition);
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-white);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-dark);
}

/* ============================================================
   components: figure / media
   ============================================================ */

.hero-figure,
.content-media,
.entry-media,
.process-media,
.faq-media,
.section-figure {
  overflow: hidden;
  border-radius: var(--radius);
  background-color: var(--color-bg-alt);
}

.hero-figure img,
.content-media img,
.entry-media img,
.process-media img,
.faq-media img,
.section-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

figcaption,
.media-caption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--color-text-muted);
  background-color: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

/* ============================================================
   components: faq
   ============================================================ */

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-white);
  overflow: hidden;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  min-height: 44px;
}

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

.faq-question::after {
  content: "+";
  flex: 0 0 auto;
  font-size: 20px;
  font-weight: 400;
  color: var(--color-accent);
  line-height: 1;
  transition: transform var(--transition);
}

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

.faq-item[open] .faq-question {
  border-bottom: 1px solid var(--color-border);
}

.faq-answer {
  padding: 16px 20px;
  font-size: 15px;
  color: var(--color-text);
}

.faq-answer p + p {
  margin-top: 10px;
}

/* ============================================================
   components: footer
   ============================================================ */

.site-footer {
  background-color: var(--color-primary);
  color: #d8dedb;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px var(--container-pad) 32px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-brand {
  max-width: 320px;
}

.footer-logo {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #b3bfba;
}

.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 14px;
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-list a {
  font-size: 14px;
  color: #b3bfba;
  transition: color var(--transition);
}

.footer-list a:hover {
  color: var(--color-white);
}

.footer-bottom {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 20px var(--container-pad) 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

.footer-note,
.footer-copy {
  font-size: 13px;
  color: #9aa8a3;
}

/* ============================================================
   pages: home
   ============================================================ */

.fact-bar {
  background-color: var(--color-primary);
  color: #d8dedb;
  font-size: 13px;
  text-align: center;
  padding: 8px 16px;
  line-height: 1.5;
}

.home-main {
  display: block;
}

.hero {
  padding: 56px 0 24px;
}

.hero-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.hero-copy {
  max-width: 560px;
}

.hero-title {
  font-size: 30px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 18px;
  line-height: 1.4;
}

.hero-lead {
  font-size: 16px;
  color: var(--color-text-muted);
  margin-bottom: 26px;
}

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

.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-figure {
  aspect-ratio: 4 / 3;
}

.hero-points {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-point {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
}

.hero-point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.content-media-primary {
  max-width: var(--container-width);
  margin: 32px auto 0;
  padding: 0 var(--container-pad);
  background-color: transparent;
  border-radius: 0;
  overflow: visible;
}

.content-media-primary img {
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 8;
  object-fit: cover;
  border-radius: var(--radius);
}

.content-media-primary figcaption {
  border-radius: 0 0 var(--radius) var(--radius);
  margin-top: -1px;
}

.section-services {
  background-color: var(--color-bg-alt);
}

.direction-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
}

.direction-row {
  display: grid;
  grid-template-columns: 56px 1fr auto auto;
  align-items: center;
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
}

.direction-no {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.direction-body {
  min-width: 0;
}

.direction-name {
  font-size: 18px;
  margin-bottom: 4px;
}

.direction-audience {
  font-size: 14px;
  color: var(--color-text-muted);
}

.direction-count {
  font-size: 13px;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.direction-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
  white-space: nowrap;
}

.direction-link:hover {
  color: var(--color-accent-dark);
}

.stage-strip {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.stage-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.stage-no {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.stage-name {
  font-size: 16px;
}

.stage-action,
.stage-output {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.stage-output {
  padding-top: 8px;
  border-top: 1px dashed var(--color-border);
}

.standards-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

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

.col-title {
  font-size: 18px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.standard-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.standard-item {
  display: flex;
  gap: 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
}

.standard-item::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: 9px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.standard-name {
  font-weight: 600;
  color: var(--color-primary);
}

.standard-note {
  color: var(--color-text-muted);
}

.section-index {
  background-color: var(--color-bg-alt);
}

.column-index {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.column-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
  transition: border-color var(--transition), box-shadow var(--transition);
  min-height: 44px;
}

.column-link:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
  color: var(--color-accent);
}

.column-note {
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-muted);
}

/* ============================================================
   pages: services
   ============================================================ */

.section-overview {
  padding-top: 0;
}

.overview-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
  margin-top: 24px;
}

.overview-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
}

.overview-no {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.overview-body {
  min-width: 0;
}

.overview-name {
  font-size: 17px;
  margin-bottom: 4px;
}

.overview-text {
  font-size: 14px;
  color: var(--color-text-muted);
}

.overview-count {
  font-size: 13px;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.section-entries {
  background-color: var(--color-bg-alt);
}

.service-entry {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 40px;
  align-items: start;
  padding: 32px 0;
  border-bottom: 1px solid var(--color-border);
}

.service-entry:first-of-type {
  padding-top: 8px;
}

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

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

.entry-no {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  margin-bottom: 8px;
}

.entry-name {
  font-size: 20px;
  margin-bottom: 12px;
}

.entry-scene {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 18px;
}

.entry-subtitle {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.entry-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.entry-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.entry-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

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

.section-unsuited {
  padding-top: 56px;
}

.unsuited-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}

.unsuited-item {
  padding: 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
}

.unsuited-name {
  font-size: 16px;
  margin-bottom: 8px;
}

.unsuited-text {
  font-size: 14px;
  color: var(--color-text-muted);
}

.section-related {
  padding-top: 56px;
}

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

.related-item {
  padding: 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

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

.related-name {
  font-size: 16px;
  margin-bottom: 8px;
}

.related-text {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ============================================================
   pages: process
   ============================================================ */

.section-process-overview {
  padding-top: 0;
}

.process-overview-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--color-border);
  margin-top: 24px;
}

.process-overview-item {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
}

.overview-num {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.overview-desc {
  font-size: 14px;
  color: var(--color-text-muted);
}

.overview-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
  white-space: nowrap;
}

.overview-link:hover {
  color: var(--color-accent-dark);
}

.section-process-stages {
  background-color: var(--color-bg-alt);
}

.stage-block {
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.stage-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.stage-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 14px;
  font-weight: 600;
  border-radius: 50%;
  font-variant-numeric: tabular-nums;
}

.stage-name {
  font-size: 19px;
}

.stage-body {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-left: 50px;
}

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

.stage-subtitle {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}

.stage-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stage-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.stage-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  background-color: var(--color-primary);
  border-radius: 50%;
}

.process-media {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  background-color: transparent;
  border-radius: 0;
  overflow: visible;
}

.process-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 21 / 8;
  object-fit: cover;
  border-radius: var(--radius);
}

.process-media figcaption {
  border-radius: 0 0 var(--radius) var(--radius);
  margin-top: -1px;
}

.section-prepare {
  padding-top: 56px;
}

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

.prepare-item {
  padding: 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.prepare-name {
  font-size: 16px;
  margin-bottom: 8px;
}

.prepare-desc {
  font-size: 14px;
  color: var(--color-text-muted);
}

.section-foot {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  font-size: 15px;
}

.section-foot a {
  color: var(--color-accent);
  font-weight: 500;
}

.section-foot a:hover {
  color: var(--color-accent-dark);
}

/* ============================================================
   pages: standards
   ============================================================ */

.section-standard-list {
  padding-top: 0;
}

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

.section-figure img {
  width: 100%;
  aspect-ratio: 21 / 8;
  object-fit: cover;
}

.standard-rows {
  margin: 0;
  border-top: 1px solid var(--color-border);
}

.standard-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

.standard-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
}

.standard-desc {
  margin: 0;
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.7;
}

.section-record {
  background-color: var(--color-bg-alt);
}

.record-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 8px;
}

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

.subsection-title {
  font-size: 17px;
  margin-bottom: 10px;
}

.subsection-text {
  font-size: 15px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.record-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.record-item {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
}

.record-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.section-deviation {
  padding-top: 56px;
}

.deviation-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 8px;
}

.deviation-item {
  padding: 20px 22px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.deviation-name {
  font-size: 16px;
  margin-bottom: 8px;
}

.deviation-desc {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 10px;
}

.deviation-path {
  font-size: 14px;
  color: var(--color-text-muted);
  padding-top: 10px;
  border-top: 1px dashed var(--color-border);
}

.related-links {
  margin-top: 36px;
  padding: 22px 24px;
  background-color: var(--color-bg-alt);
  border-radius: var(--radius);
}

.related-title {
  font-size: 16px;
  margin-bottom: 8px;
}

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

.related-links .related-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: 0;
}

.related-links .related-list a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
}

.related-links .related-list a:hover {
  color: var(--color-accent-dark);
}

/* ============================================================
   pages: faq
   ============================================================ */

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

.faq-media img {
  width: 100%;
  aspect-ratio: 21 / 8;
  object-fit: cover;
}

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

.faq-group .section-title {
  margin-bottom: 10px;
}

.faq-group .section-intro {
  margin-bottom: 20px;
}

.faq-group .section-intro a {
  color: var(--color-accent);
  font-weight: 500;
}

.faq-group .section-intro a:hover {
  color: var(--color-accent-dark);
}

.faq-links {
  padding-top: 8px;
}

.faq-links .section-title {
  margin-bottom: 10px;
}

.faq-links .section-intro {
  margin-bottom: 20px;
}

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

.faq-link-item a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 12px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-primary);
  transition: border-color var(--transition), color var(--transition);
}

.faq-link-item a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ============================================================
   pages: 404
   ============================================================ */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px var(--container-pad);
}

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

.error-code {
  font-size: 64px;
  font-weight: 600;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}

.error-title {
  font-size: 26px;
  margin-bottom: 14px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 28px;
}

.error-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 18px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  transition: border-color var(--transition), color var(--transition);
}

.error-links a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.error-home {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 28px;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius);
  transition: background-color var(--transition);
}

.error-home:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-white);
}

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

@media (max-width: 900px) {
  :root {
    --container-pad: 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: 8px var(--container-pad) 16px;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

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

  .nav-link {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 12px 10px;
    border-bottom: 1px solid var(--color-border);
    border-radius: 0;
    font-size: 16px;
  }

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

  .hero {
    padding: 40px 0 16px;
  }

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

  .hero-copy {
    max-width: none;
  }

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

  .content-media-primary img,
  .process-media img,
  .section-figure img,
  .faq-media img {
    aspect-ratio: 16 / 9;
  }

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

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

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

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

  .entry-media {
    order: -1;
    aspect-ratio: 16 / 9;
  }

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

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

  .stage-body {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-left: 0;
  }

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

  .standard-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

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

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

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .footer-brand {
    grid-column: 1 / -1;
    max-width: none;
  }
}

@media (max-width: 600px) {
  :root {
    --container-pad: 16px;
  }

  body {
    font-size: 15px;
  }

  .section {
    padding: 40px 0;
  }

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

  .section-title {
    font-size: 19px;
  }

  .direction-row {
    grid-template-columns: 40px 1fr;
    gap: 12px;
    row-gap: 8px;
  }

  .direction-count {
    grid-column: 2;
  }

  .direction-link {
    grid-column: 2;
    justify-self: start;
  }

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

  .overview-row,
  .process-overview-item {
    grid-template-columns: 40px 1fr;
    gap: 12px;
    row-gap: 8px;
  }

  .overview-count,
  .overview-link {
    grid-column: 2;
    justify-self: start;
  }

  .column-index {
    grid-template-columns: 1fr;
  }

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

  .error-code {
    font-size: 52px;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
  }
}