:root {
  --color-bg: #f7f5f1;
  --color-surface: #fffdfa;
  --color-text: #22201d;
  --color-text-soft: #5c5852;
  --color-accent: #3f6b5a;
  --color-accent-soft: #e6ede9;
  --color-warm: #c2703d;
  --color-line: #d9d4cc;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --container: 1120px;
  --radius: 6px;
  --space-section: 64px;
}

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

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

body.site-body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  font-weight: 400;
}

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

figure {
  margin: 0;
}

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

a:hover,
a:focus-visible {
  text-decoration: underline;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

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

p {
  margin: 0;
}

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

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

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 60;
  padding: 10px 16px;
  background-color: var(--color-accent);
  color: #fff;
  border-radius: var(--radius);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(247, 245, 241, 0.96);
  border-bottom: 1px solid var(--color-line);
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: var(--color-text);
  text-decoration: none;
  min-width: 0;
}

.brand:hover,
.brand:focus-visible {
  text-decoration: none;
}

.brand-name {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.3;
}

.brand-slogan {
  font-size: 13px;
  color: var(--color-text-soft);
  line-height: 1.4;
}

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

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

.nav-link {
  display: inline-block;
  padding: 9px 14px;
  font-size: 15px;
  color: var(--color-text);
  border-bottom: 2px solid transparent;
  border-radius: 4px;
  text-decoration: none;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

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

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 10px 14px;
  min-height: 44px;
  font-size: 15px;
  font-family: inherit;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle-icon {
  display: block;
  width: 18px;
  height: 2px;
  background-color: var(--color-text);
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background-color: var(--color-text);
}

.nav-toggle-icon::before {
  top: -6px;
}

.nav-toggle-icon::after {
  top: 6px;
}

.nav-toggle-text {
  display: inline-block;
  font-size: 15px;
  line-height: 1.4;
}

.site-main {
  display: block;
}

.home-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 72px;
}

.inner-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 72px;
}

.section {
  padding: var(--space-section) 0;
  border-top: 1px solid var(--color-line);
}

.section-head {
  margin-bottom: 28px;
  max-width: 760px;
}

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

.section-intro {
  font-size: 15px;
  color: var(--color-text-soft);
}

.section-note {
  font-size: 14px;
  color: var(--color-text-soft);
  margin-bottom: 22px;
}

.section-more {
  margin-top: 22px;
  font-size: 15px;
}

.section-more a {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 2px;
}

.section-more a:hover,
.section-more a:focus-visible {
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

.section-foot {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 15px;
}

.section-foot a {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 2px;
}

.section-foot a:hover,
.section-foot a:focus-visible {
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 14px;
  color: var(--color-text-soft);
}

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

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

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

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

.page-header {
  padding: 22px 0 34px;
  border-bottom: 1px solid var(--color-line);
  margin-bottom: 12px;
  max-width: 860px;
}

.page-title {
  font-size: 32px;
  margin-bottom: 12px;
}

.page-description {
  font-size: 15px;
  color: var(--color-text-soft);
}

.page-description a {
  border-bottom: 1px solid var(--color-line);
}

.page-description a:hover,
.page-description a:focus-visible {
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

.section-media {
  margin: 0 0 26px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
}

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

.section-media figcaption {
  padding: 12px 18px;
  font-size: 14px;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-line);
}

.field-table,
.data-table {
  font-size: 15px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.field-table caption,
.data-table caption,
.table-caption {
  caption-side: top;
  text-align: left;
  padding: 14px 18px;
  font-size: 14px;
  color: var(--color-text-soft);
  border-bottom: 1px solid var(--color-line);
}

.field-table th,
.field-table td,
.data-table th,
.data-table td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-line);
  line-height: 1.7;
}

.field-table thead th,
.data-table thead th {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-soft);
  background-color: var(--color-accent-soft);
}

.field-table tbody th,
.data-table tbody th {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  width: 22%;
  white-space: nowrap;
}

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

.step-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-line);
  counter-reset: step;
}

.step-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 4px 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
  counter-increment: step;
}

.step-item::before {
  content: counter(step, decimal-leading-zero);
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--color-warm);
  line-height: 1.5;
  padding-top: 3px;
}

.step-title {
  font-size: 17px;
  margin-bottom: 4px;
}

.step-item p {
  font-size: 15px;
  color: var(--color-text-soft);
}

.step-item p a {
  border-bottom: 1px solid var(--color-line);
}

.step-item p a:hover,
.step-item p a:focus-visible {
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

.faq-list {
  border-top: 1px solid var(--color-line);
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  min-height: 44px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--color-warm);
  line-height: 1;
}

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

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

.faq-answer {
  padding: 0 0 20px;
  max-width: 780px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--color-text-soft);
}

.note-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0;
  border-top: 1px solid var(--color-line);
}

.note-item {
  padding: 20px 24px 20px 0;
  border-bottom: 1px solid var(--color-line);
}

.note-title {
  font-size: 17px;
  margin-bottom: 6px;
}

.note-item p {
  font-size: 15px;
  color: var(--color-text-soft);
}

/* ===== pages: index ===== */

.hero {
  padding: 44px 0 8px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 44px;
  align-items: start;
}

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

.hero-eyebrow {
  font-size: 14px;
  color: var(--color-warm);
  margin-bottom: 14px;
}

.hero-title {
  font-size: 36px;
  margin-bottom: 18px;
}

.hero-lead {
  font-size: 16px;
  color: var(--color-text-soft);
  max-width: 520px;
  margin-bottom: 28px;
}

.hero-paths {
  display: grid;
  gap: 10px;
  max-width: 520px;
}

.path-entry {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 18px;
  min-height: 44px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
  color: var(--color-text);
  text-decoration: none;
}

.path-entry:hover,
.path-entry:focus-visible {
  border-color: var(--color-accent);
  border-left-color: var(--color-accent);
  text-decoration: none;
}

.path-entry-name {
  font-size: 16px;
  font-weight: 600;
}

.path-entry-desc {
  font-size: 14px;
  color: var(--color-text-soft);
}

.hero-media {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
}

.hero-media img {
  width: 100%;
  height: 340px;
  object-fit: cover;
}

.hero-media figcaption {
  padding: 12px 18px;
  font-size: 14px;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-line);
}

.content-media {
  margin-top: 36px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
}

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

.content-media figcaption {
  padding: 12px 18px;
  font-size: 14px;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-line);
}

.content-media-primary {
  margin-top: 40px;
}

.section-channels,
.section-specials,
.section-fields,
.section-steps,
.section-scope {
  position: relative;
}

.channel-rows,
.special-rows {
  border-top: 1px solid var(--color-line);
}

.channel-row {
  display: grid;
  grid-template-columns: 180px minmax(260px, 1fr) 150px;
  gap: 24px;
  align-items: baseline;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
}

.channel-name h3 {
  font-size: 17px;
}

.channel-desc p {
  font-size: 15px;
  color: var(--color-text-soft);
}

.channel-link {
  text-align: right;
  font-size: 15px;
}

.channel-link a {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 2px;
}

.channel-link a:hover,
.channel-link a:focus-visible {
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

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

.special-name h3 {
  font-size: 17px;
}

.special-scope p,
.special-reason p {
  font-size: 15px;
  color: var(--color-text-soft);
}

.special-scope p::before {
  content: "收录范围";
  display: block;
  font-size: 13px;
  color: var(--color-warm);
  margin-bottom: 2px;
}

.special-reason p::before {
  content: "选入依据";
  display: block;
  font-size: 13px;
  color: var(--color-warm);
  margin-bottom: 2px;
}

.scope-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 32px;
}

.scope-boundary,
.scope-feedback {
  padding: 22px 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.scope-boundary h3,
.scope-feedback h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.scope-boundary p,
.scope-feedback p {
  font-size: 15px;
  color: var(--color-text-soft);
}

.scope-feedback-link {
  margin-top: 12px;
}

.scope-feedback-link a {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 2px;
}

.scope-feedback-link a:hover,
.scope-feedback-link a:focus-visible {
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

/* ===== pages: inner shared ===== */

.channel-section,
.content-section,
.guide-steps,
.guide-faq,
.guide-notes {
  padding: 48px 0;
  border-bottom: 1px solid var(--color-line);
}

.channel-section:last-of-type,
.content-section:last-of-type,
.guide-notes:last-of-type {
  border-bottom: none;
}

.channel-groups .group-list,
.channel-features .feature-list {
  border-top: 1px solid var(--color-line);
}

.channel-groups .group-row {
  display: grid;
  grid-template-columns: 180px minmax(260px, 1fr) 150px;
  gap: 24px;
  align-items: baseline;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
}

.channel-groups .group-name h3 {
  font-size: 17px;
}

.channel-groups .group-scope p {
  font-size: 15px;
  color: var(--color-text-soft);
}

.channel-groups .group-entry {
  text-align: right;
  font-size: 15px;
}

.channel-groups .group-entry a {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 2px;
}

.channel-groups .group-entry a:hover,
.channel-groups .group-entry a:focus-visible {
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

.channel-features .feature-row {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 24px;
  align-items: baseline;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line);
}

.channel-features .feature-name h3 {
  font-size: 17px;
}

.channel-features .feature-text p {
  font-size: 15px;
  color: var(--color-text-soft);
}

.channel-mapping .field-table {
  margin-top: 4px;
}

/* ===== pages: special ===== */

.special-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
  gap: 32px;
  align-items: start;
}

.special-intro-main {
  min-width: 0;
}

.special-intro-main h3 {
  font-size: 17px;
  margin-bottom: 10px;
}

.special-intro-main p {
  font-size: 15px;
  color: var(--color-text-soft);
  margin-bottom: 12px;
}

.special-intro-scope {
  padding: 22px 24px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.special-intro-scope h3 {
  font-size: 17px;
  margin-bottom: 12px;
}

.scope-list li {
  font-size: 15px;
  color: var(--color-text-soft);
  padding: 8px 0 8px 18px;
  border-bottom: 1px solid var(--color-line);
  position: relative;
}

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

.scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
  border-radius: 50%;
}

.special-list .special-item {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 26px;
  padding: 26px 0;
  border-bottom: 1px solid var(--color-line);
}

.special-list .special-item:first-of-type {
  border-top: 1px solid var(--color-line);
}

.special-item-media {
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
}

.special-item-media img {
  width: 100%;
  height: 170px;
  object-fit: cover;
}

.special-item-body {
  min-width: 0;
}

.special-item-body h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.special-item-theme {
  font-size: 15px;
  color: var(--color-text-soft);
  margin-bottom: 14px;
}

.special-item-meta {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 6px 16px;
  margin: 0 0 12px;
  font-size: 15px;
}

.special-item-meta dt {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-warm);
}

.special-item-meta dd {
  margin: 0;
  color: var(--color-text-soft);
}

.special-item-link {
  font-size: 15px;
}

.special-item-link a {
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 2px;
}

.special-item-link a:hover,
.special-item-link a:focus-visible {
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

.special-order .step-list {
  border-top: 1px solid var(--color-line);
}

/* ===== pages: catalog ===== */

.catalog-fields .field-table {
  margin-top: 4px;
}

.catalog-rules .rule-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px;
}

.rule-compare-col {
  padding: 22px 24px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background-color: var(--color-surface);
}

.rule-compare-wrong {
  border-left: 3px solid var(--color-warm);
}

.rule-compare-right {
  border-left: 3px solid var(--color-accent);
}

.col-title {
  font-size: 17px;
  margin-bottom: 12px;
}

.rule-compare-wrong .col-title {
  color: var(--color-warm);
}

.rule-compare-right .col-title {
  color: var(--color-accent);
}

.rule-list li {
  font-size: 15px;
  color: var(--color-text-soft);
  padding: 10px 0;
  border-bottom: 1px solid var(--color-line);
}

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

.catalog-order .step-list {
  border-top: 1px solid var(--color-line);
}

/* ===== pages: guide ===== */

.guide-steps .step-list {
  border-top: 1px solid var(--color-line);
}

.guide-figure {
  margin-top: 30px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--color-surface);
}

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

.guide-figure figcaption {
  padding: 12px 18px;
  font-size: 14px;
  color: var(--color-text-soft);
  border-top: 1px solid var(--color-line);
}

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

.error-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 72px;
}

.error-block {
  padding: 72px 0 0;
  max-width: 720px;
}

.error-title {
  font-size: 32px;
  margin-bottom: 14px;
}

.error-text {
  font-size: 16px;
  color: var(--color-text-soft);
  margin-bottom: 20px;
}

.error-action {
  margin-bottom: 22px;
}

.error-home-link {
  display: inline-block;
  padding: 12px 22px;
  min-height: 44px;
  background-color: var(--color-accent);
  color: #fff;
  border-radius: var(--radius);
}

.error-home-link:hover,
.error-home-link:focus-visible {
  background-color: #35594b;
  text-decoration: none;
}

.error-path-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
  border-top: 1px solid var(--color-line);
  margin-bottom: 20px;
}

.error-path-list li {
  border-bottom: 1px solid var(--color-line);
}

.error-path-list a {
  display: block;
  padding: 14px 0;
  min-height: 44px;
  font-size: 15px;
  color: var(--color-text);
}

.error-path-list a:hover,
.error-path-list a:focus-visible {
  color: var(--color-accent);
  text-decoration: none;
}

.error-note {
  font-size: 14px;
  color: var(--color-text-soft);
}

/* ===== footer ===== */

.site-footer {
  border-top: 1px solid var(--color-line);
  background-color: var(--color-surface);
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 52px 24px 40px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 40px;
}

.footer-brand,
.footer-nav-title,
.footer-note-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
}

.footer-about p,
.footer-note p {
  font-size: 14px;
  color: var(--color-text-soft);
}

.footer-nav-list {
  display: block;
}

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

.footer-nav-list a {
  font-size: 14px;
  color: var(--color-text-soft);
}

.footer-nav-list a:hover,
.footer-nav-list a:focus-visible {
  color: var(--color-accent);
}

.footer-copy {
  margin-top: 10px;
}

.footer-top {
  margin-top: 14px;
}

.footer-top a {
  font-size: 14px;
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 2px;
}

.footer-top a:hover,
.footer-top a:focus-visible {
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

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

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }

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

  .channel-row,
  .channel-groups .group-row {
    grid-template-columns: 150px minmax(0, 1fr);
    gap: 6px 20px;
  }

  .channel-link,
  .channel-groups .group-entry {
    grid-column: 2;
    text-align: left;
  }

  .special-row {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .special-name {
    grid-column: 1 / -1;
  }

  .special-intro-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .special-list .special-item {
    grid-template-columns: 200px minmax(0, 1fr);
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 32px;
  }

  .footer-note {
    grid-column: 1 / -1;
  }
}

@media (max-width: 600px) {
  .header-inner {
    padding: 12px 18px;
    gap: 12px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    flex-basis: 100%;
    margin-left: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 4px;
    border-top: 1px solid var(--color-line);
  }

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

  .nav-link {
    display: block;
    padding: 13px 4px;
    min-height: 44px;
    border-bottom: none;
    border-left: 2px solid transparent;
    border-radius: 0;
  }

  .nav-link:hover,
  .nav-link:focus-visible,
  .nav-link.is-current {
    border-left-color: var(--color-accent);
    border-bottom-color: transparent;
  }

  .home-main,
  .inner-main,
  .error-main {
    padding: 0 18px 56px;
  }

  .hero {
    padding: 30px 0 4px;
  }

  .hero-title {
    font-size: 27px;
  }

  .hero-media img {
    height: 220px;
  }

  .content-media img {
    height: 210px;
  }

  .section {
    padding: 44px 0;
  }

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

  .page-header {
    padding: 18px 0 26px;
  }

  .section-media img,
  .guide-figure img {
    height: 210px;
  }

  .channel-row,
  .channel-groups .group-row,
  .channel-features .feature-row,
  .special-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .channel-link,
  .channel-groups .group-entry {
    grid-column: 1;
  }

  .special-scope p::before,
  .special-reason p::before {
    margin-top: 4px;
  }

  .scope-layout,
  .catalog-rules .rule-compare,
  .special-list .special-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .special-item-media img {
    height: 200px;
  }

  .step-item {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 2px 12px;
  }

  .note-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .note-item {
    padding-right: 0;
  }

  .field-table,
  .data-table {
    font-size: 14px;
  }

  .field-table thead,
  .data-table thead {
    display: none;
  }

  .field-table tbody tr,
  .data-table tbody tr {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid var(--color-line);
  }

  .field-table tbody tr:last-child,
  .data-table tbody tr:last-child {
    border-bottom: none;
  }

  .field-table tbody th,
  .field-table tbody td,
  .data-table tbody th,
  .data-table tbody td {
    display: block;
    width: auto;
    padding: 4px 18px;
    border-bottom: none;
    white-space: normal;
  }

  .field-table tbody th,
  .data-table tbody th {
    color: var(--color-accent);
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    padding: 40px 18px 32px;
    gap: 28px;
  }

  .footer-note {
    grid-column: 1;
  }

  .error-block {
    padding-top: 48px;
  }

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

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

  .skip-link {
    transition: none;
  }
}