/* ==========================================================================
   午夜TV 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base —— 变量、重置、排版基础
   -------------------------------------------------------------------------- */
:root {
  --color-primary: #1f3a5f;
  --color-accent: #2f7d6e;
  --color-bg: #f7f6f3;
  --color-surface: #ffffff;
  --color-line: #d8d4cc;
  --color-text: #232323;
  --color-muted: #5d5a54;
  --color-soft: #f1efe9;
  --radius: 6px;
  --container: 1120px;
  --reading: 760px;
  --gap-lg: 48px;
  --gap-md: 28px;
  --gap-sm: 16px;
  --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei",
    system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
}

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

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

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--color-primary);
  font-weight: 600;
  line-height: 1.4;
}

p {
  margin: 0 0 14px;
}

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

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

a:hover,
a:focus {
  color: var(--color-accent);
  text-decoration: underline;
}

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

figure {
  margin: 0;
}

figcaption {
  margin-top: 8px;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.7;
}

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

th,
td {
  text-align: left;
  vertical-align: top;
}

button {
  font-family: inherit;
  font-size: inherit;
}

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

/* --------------------------------------------------------------------------
   layout —— 页头、主导航、主容器、页脚骨架
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
}

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

.brand {
  flex: 0 0 auto;
  color: var(--color-primary);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand:hover,
.brand:focus {
  color: var(--color-accent);
  text-decoration: none;
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
}

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

.nav-list li {
  display: block;
}

.nav-list a {
  display: block;
  padding: 10px 14px;
  color: var(--color-text);
  font-size: 15px;
  border-radius: var(--radius);
}

.nav-list a:hover,
.nav-list a:focus {
  color: var(--color-accent);
  background-color: var(--color-soft);
  text-decoration: none;
}

.nav-list a.is-current {
  color: var(--color-primary);
  font-weight: 600;
  box-shadow: inset 0 -2px 0 0 var(--color-accent);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle::before {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background-color: var(--color-primary);
  box-shadow: 0 -6px 0 0 var(--color-primary), 0 6px 0 0 var(--color-primary);
}

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

.home-main {
  padding-top: 0;
}

.inner-main {
  padding-top: 20px;
}

.main-inner {
  max-width: var(--reading);
  margin: 0 auto;
}

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

.footer-inner {
  display: grid;
  grid-template-columns: 1.1fr 1.1fr 1.4fr 1.4fr;
  gap: var(--gap-md);
  max-width: var(--container);
  margin: 0 auto;
  padding: 40px 24px 32px;
}

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

.footer-title {
  margin-bottom: 12px;
  color: var(--color-primary);
  font-size: 15px;
  font-weight: 600;
}

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

.footer-links a {
  display: inline-block;
  min-height: 24px;
  color: var(--color-muted);
  font-size: 14px;
}

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

.footer-about p,
.footer-coop p,
.footer-note p {
  margin: 0 0 10px;
  color: var(--color-muted);
  font-size: 14px;
}

.footer-copy {
  padding-top: 6px;
  border-top: 1px solid var(--color-line);
  font-size: 13px;
}

.footer-top a {
  display: inline-block;
  min-height: 24px;
  color: var(--color-primary);
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   components —— 通用按钮、区块、面包屑、标题区、表格、问答
   -------------------------------------------------------------------------- */
.section {
  padding: 40px 0;
  border-top: 1px solid var(--color-line);
}

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

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

.section-intro,
.section-lead {
  max-width: var(--reading);
  margin-bottom: 20px;
  color: var(--color-muted);
}

.section-head {
  margin-bottom: 22px;
}

.section-head h2 {
  margin-bottom: 8px;
  font-size: 22px;
}

.section-head p {
  max-width: var(--reading);
  margin: 0;
  color: var(--color-muted);
}

.section-more {
  margin-top: 18px;
  font-size: 15px;
}

.section-more a {
  margin-right: 16px;
  font-weight: 600;
}

.section-note {
  margin-top: 18px;
  color: var(--color-muted);
  font-size: 15px;
}

.section-note a {
  margin-right: 16px;
}

.btn {
  display: inline-block;
  padding: 11px 20px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: background-color 0.18s ease, color 0.18s ease,
    border-color 0.18s ease;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
  text-decoration: none;
}

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

.btn-ghost:hover,
.btn-ghost:focus {
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
  color: var(--color-muted);
  font-size: 14px;
}

.breadcrumb a {
  min-height: 24px;
  color: var(--color-muted);
}

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

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

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

/* 页面标题区 */
.page-header {
  max-width: var(--reading);
  padding-bottom: 24px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--color-line);
}

.page-title {
  margin-bottom: 12px;
  font-size: 30px;
  line-height: 1.35;
}

.page-description {
  margin: 0;
  color: var(--color-muted);
  font-size: 16px;
}

/* 细线字段表 */
.field-table,
.data-table {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  font-size: 15px;
}

.field-table caption,
.data-table caption {
  padding: 12px 14px;
  color: var(--color-muted);
  font-size: 13px;
  text-align: left;
  border-bottom: 1px solid var(--color-line);
}

.field-table th,
.field-table td,
.data-table th,
.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-line);
}

.field-table thead th,
.data-table thead th {
  background-color: var(--color-soft);
  color: var(--color-primary);
  font-weight: 600;
}

.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: 0;
}

.table-wrap {
  overflow-x: auto;
  margin-bottom: 24px;
}

/* 图片容器 */
.media-figure,
.direction-figure,
.flow-figure,
.faq-view-figure,
.section-media,
.hero-figure {
  overflow: hidden;
  background-color: var(--color-soft);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.media-figure img,
.direction-figure img,
.flow-figure img,
.faq-view-figure img,
.section-media img,
.hero-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 通用问答列表（服务方向页） */
.qa-list {
  display: grid;
  gap: 18px;
}

.qa-item {
  padding: 18px 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.qa-question {
  margin-bottom: 8px;
  font-size: 18px;
}

.qa-answer {
  margin: 0;
  color: var(--color-muted);
}

/* 引用式段落 */
.prose {
  max-width: var(--reading);
}

.prose-item {
  padding: 12px 0 12px 18px;
  margin-bottom: 14px;
  border-left: 3px solid var(--color-accent);
  background-color: var(--color-surface);
  color: var(--color-text);
}

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

/* --------------------------------------------------------------------------
   pages —— index 首页
   -------------------------------------------------------------------------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--gap-lg);
  align-items: start;
  padding: 48px 0 44px;
}

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

.hero-title {
  margin-bottom: 14px;
  font-size: 30px;
  line-height: 1.35;
}

.hero-lead {
  max-width: 520px;
  margin-bottom: 22px;
  color: var(--color-muted);
}

.hero-questions {
  display: grid;
  gap: 10px;
}

.hero-questions li {
  position: relative;
  padding-left: 20px;
  color: var(--color-text);
  font-size: 15px;
}

.hero-questions li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 2px;
  background-color: var(--color-accent);
}

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

.hero-figure img {
  aspect-ratio: 16 / 10;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

/* 服务方向总览 */
.service-rows {
  border-top: 1px solid var(--color-line);
}

.service-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1.6fr auto;
  gap: var(--gap-sm);
  align-items: center;
  padding: 18px 4px;
  border-bottom: 1px solid var(--color-line);
}

.service-name {
  color: var(--color-primary);
  font-size: 17px;
  font-weight: 600;
}

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

.service-summary {
  color: var(--color-text);
  font-size: 15px;
}

.service-link {
  white-space: nowrap;
  font-size: 14px;
  font-weight: 600;
}

/* 合作流程三步 */
.process-steps {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-line);
}

.process-step {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: var(--gap-sm);
  padding: 18px 4px;
  border-bottom: 1px solid var(--color-line);
}

.process-step .step-index {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--color-accent);
  font-size: 15px;
  font-weight: 700;
  border: 1px solid var(--color-accent);
  border-radius: 50%;
}

.process-step .step-body {
  min-width: 0;
}

.process-step .step-name {
  margin-bottom: 6px;
  font-size: 18px;
}

.process-step .step-input,
.process-step .step-result {
  margin: 0 0 4px;
  color: var(--color-muted);
  font-size: 15px;
}

.process-step .step-result {
  margin-bottom: 0;
}

/* 交付标准说明 */
.standards {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: var(--gap-lg);
  align-items: start;
}

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

.standards-copy h2 {
  margin-bottom: 12px;
  font-size: 22px;
}

.standards-copy h3 {
  margin: 20px 0 8px;
  font-size: 18px;
}

.standards-copy p {
  max-width: 560px;
  color: var(--color-muted);
}

.standards-media {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.standards-media .media-figure img {
  aspect-ratio: 4 / 3;
}

/* 首页常见问题摘要 */
.faq-brief-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.faq-brief {
  padding: 16px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.faq-brief-q {
  margin-bottom: 6px;
  font-size: 17px;
}

.faq-brief-a {
  margin: 0;
  color: var(--color-muted);
  font-size: 15px;
}

.faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

/* --------------------------------------------------------------------------
   pages —— fuwu 服务方向
   -------------------------------------------------------------------------- */
.section-overview .overview-table {
  margin-top: 4px;
}

.direction-block {
  padding: 24px 0;
  border-top: 1px solid var(--color-line);
}

.direction-block:first-of-type {
  border-top: 0;
  padding-top: 8px;
}

.direction-title {
  margin-bottom: 12px;
  font-size: 18px;
}

.direction-figure {
  max-width: 640px;
  margin-bottom: 16px;
}

.direction-figure img {
  aspect-ratio: 16 / 9;
}

.direction-text {
  max-width: var(--reading);
  color: var(--color-text);
}

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

.section-judge .qa-list {
  margin-bottom: 4px;
}

/* --------------------------------------------------------------------------
   pages —— liucheng 合作流程
   -------------------------------------------------------------------------- */
.flow-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap-md);
}

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

.flow-step-num {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 700;
}

.flow-step-name {
  margin-bottom: 8px;
  font-size: 18px;
}

.flow-step-desc {
  margin: 0;
  color: var(--color-muted);
  font-size: 15px;
}

.flow-detail-item {
  padding: 22px 0;
  border-top: 1px solid var(--color-line);
}

.flow-detail-item:first-of-type {
  border-top: 0;
  padding-top: 6px;
}

.flow-detail-name {
  margin-bottom: 12px;
  font-size: 18px;
}

.flow-detail-fields {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: 8px 18px;
  margin: 0;
}

.flow-detail-fields dt {
  color: var(--color-accent);
  font-size: 15px;
  font-weight: 600;
}

.flow-detail-fields dd {
  margin: 0;
  color: var(--color-text);
}

.flow-visual-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap-md);
}

.flow-figure img {
  aspect-ratio: 16 / 10;
}

.prepare-table {
  margin-bottom: 4px;
}

.checkpoint-list {
  display: grid;
  gap: 14px;
  counter-reset: checkpoint;
}

.checkpoint-item {
  position: relative;
  padding: 14px 18px 14px 48px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  color: var(--color-text);
  counter-increment: checkpoint;
}

.checkpoint-item::before {
  content: counter(checkpoint);
  position: absolute;
  left: 16px;
  top: 14px;
  color: var(--color-accent);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   pages —— wenti 常见问题
   -------------------------------------------------------------------------- */
.faq-view {
  padding: 8px 0 32px;
  border-bottom: 1px solid var(--color-line);
}

.faq-view-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.faq-view-label {
  color: var(--color-muted);
  font-size: 15px;
}

.faq-view-select {
  min-height: 44px;
  padding: 8px 12px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: inherit;
  font-size: 15px;
}

.faq-view-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: var(--gap-md);
  align-items: start;
}

.faq-view-figure {
  min-width: 0;
}

.faq-view-figure img {
  aspect-ratio: 4 / 3;
}

.faq-view-text {
  min-width: 0;
}

.faq-view-text p {
  color: var(--color-muted);
}

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

.faq-group {
  padding: 36px 0;
  border-bottom: 1px solid var(--color-line);
}

.faq-group:last-of-type {
  border-bottom: 0;
}

.faq-list {
  display: grid;
  gap: 12px;
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 52px;
  padding: 14px 18px;
  color: var(--color-primary);
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "＋";
  flex: 0 0 auto;
  color: var(--color-accent);
  font-size: 16px;
  font-weight: 700;
}

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

.faq-question:hover,
.faq-question:focus {
  color: var(--color-accent);
}

.faq-answer {
  padding: 0 18px 16px;
}

.faq-answer p {
  color: var(--color-muted);
}

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

.faq-link a {
  font-size: 14px;
  font-weight: 600;
}

.faq-entry {
  padding: 36px 0 8px;
}

.faq-entry > p {
  max-width: var(--reading);
  color: var(--color-muted);
}

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

.entry-links li {
  display: block;
}

.entry-links a {
  display: inline-block;
  min-height: 44px;
  padding: 10px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
}

.entry-links a:hover,
.entry-links a:focus {
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   pages —— ziliao 资料说明
   -------------------------------------------------------------------------- */
.type-overview {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--gap-md);
}

.type-item {
  padding: 20px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.type-name {
  margin-bottom: 8px;
  font-size: 18px;
}

.type-desc {
  margin: 0;
  color: var(--color-muted);
  font-size: 15px;
}

.doc-usage .section-media {
  max-width: 640px;
  margin-bottom: 24px;
}

.doc-usage .section-media img {
  aspect-ratio: 16 / 9;
}

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

.usage-item {
  padding: 20px 4px;
  border-bottom: 1px solid var(--color-line);
}

.usage-name {
  margin-bottom: 8px;
  font-size: 18px;
}

.usage-purpose,
.usage-order {
  max-width: var(--reading);
  color: var(--color-muted);
  font-size: 15px;
}

.usage-order {
  margin-bottom: 0;
}

.checklist {
  display: grid;
  gap: 12px;
  counter-reset: checklist;
}

.checklist-item {
  position: relative;
  padding: 12px 18px 12px 48px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  counter-increment: checklist;
}

.checklist-item::before {
  content: counter(checklist);
  position: absolute;
  left: 16px;
  top: 12px;
  color: var(--color-accent);
  font-weight: 700;
}

.doc-mapping .section-media {
  max-width: 640px;
  margin-top: 24px;
}

.doc-mapping .section-media img {
  aspect-ratio: 16 / 9;
}

/* --------------------------------------------------------------------------
   pages —— 404
   -------------------------------------------------------------------------- */
.error-main {
  padding-top: 48px;
}

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

.error-block h1 {
  margin-bottom: 12px;
  font-size: 30px;
  line-height: 1.35;
}

.error-lead {
  max-width: var(--reading);
  color: var(--color-muted);
}

.error-actions {
  margin: 20px 0 0;
}

.btn-home {
  display: inline-block;
  padding: 11px 20px;
  background-color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
}

.btn-home:hover,
.btn-home:focus {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
  text-decoration: none;
}

.error-next {
  padding-top: 28px;
}

.error-next h2 {
  margin-bottom: 10px;
  font-size: 22px;
}

.error-next p {
  max-width: var(--reading);
  color: var(--color-muted);
}

.error-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.error-links a {
  display: block;
  min-height: 44px;
  padding: 11px 18px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
}

.error-links a:hover,
.error-links a:focus {
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}

/* 滚动淡入增强（不影响初始可见） */
.section,
.hero {
  animation: none;
}

@media (prefers-reduced-motion: no-preference) {
  .section,
  .hero {
    animation: fade-in 0.4s ease-out both;
  }
}

@keyframes fade-in {
  from {
    transform: translateY(6px);
  }
  to {
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   responsive —— 768px 断点与手机端
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .service-summary {
    grid-column: 1 / -1;
  }

  .service-link {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    padding: 12px 18px;
  }

  .nav-toggle {
    display: block;
    order: 2;
  }

  .site-nav {
    order: 3;
    flex: 1 1 100%;
    justify-content: flex-start;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
    padding: 8px 0 4px;
    border-top: 1px solid var(--color-line);
  }

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

  .nav-list a {
    min-height: 44px;
    padding: 12px 6px;
    font-size: 16px;
  }

  .nav-list a.is-current {
    box-shadow: none;
    border-left: 3px solid var(--color-accent);
    padding-left: 10px;
  }

  .site-main {
    padding: 0 18px 48px;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--gap-md);
    padding: 32px 0 32px;
  }

  .hero-visual {
    order: 2;
  }

  .hero-copy {
    order: 1;
  }

  .hero-title,
  .page-title,
  .error-block h1 {
    font-size: 26px;
  }

  .section {
    padding: 30px 0;
  }

  .standards {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--gap-md);
  }

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

  .flow-steps {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--gap-sm);
  }

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

  .flow-detail-fields {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .flow-detail-fields dt {
    margin-top: 6px;
  }

  .faq-view-body {
    grid-template-columns: minmax(0, 1fr);
  }

  .type-overview {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--gap-sm);
  }

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

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding: 32px 18px 24px;
  }
}

@media (max-width: 480px) {
  .service-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .process-step {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .process-step .step-index {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }

  .faq-question {
    font-size: 16px;
  }

  .hero-actions .btn,
  .faq-actions .btn {
    width: 100%;
    text-align: center;
  }
}