/* ==========================================================================
   久久精品 · 全站样式
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. base
   -------------------------------------------------------------------------- */

:root {
  --ink-900: #12263a;
  --ink-700: #2e3b46;
  --ink-500: #55636e;
  --paper: #f5f7f8;
  --surface: #ffffff;
  --line: #d9e1e6;
  --line-soft: #e8edf0;
  --accent: #4f7688;
  --accent-deep: #3a5b6b;
  --amber: #b7791f;
  --green: #2f6f5e;
  --tag-bg: #eaf1f3;
  --amber-bg: #fbf3e4;
  --green-bg: #e8f1ee;
  --radius: 6px;
  --container: 1180px;
  --main-col: 800px;
  --side-col: 304px;
  --gap: 40px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

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

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  background-color: var(--paper);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--ink-900);
  font-weight: 600;
  line-height: 1.4;
}

p {
  margin: 0;
}

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

ul,
ol {
  list-style: none;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.18s ease;
}

a:hover {
  color: var(--accent-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

figure {
  margin: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-variant-numeric: tabular-nums;
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --------------------------------------------------------------------------
   2. layout — 全站骨架
   -------------------------------------------------------------------------- */

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

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  flex: 0 0 auto;
  font-size: 20px;
  font-weight: 600;
  color: var(--ink-900);
  letter-spacing: 0;
  white-space: nowrap;
}

.brand:hover {
  color: var(--ink-900);
  text-decoration: none;
}

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

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 20px;
}

.nav-link {
  display: inline-block;
  padding: 6px 0;
  font-size: 15px;
  color: var(--ink-700);
  border-bottom: 2px solid transparent;
}

.nav-link:hover {
  color: var(--ink-900);
  text-decoration: none;
}

.nav-link.is-current {
  color: var(--ink-900);
  font-weight: 600;
  border-bottom-color: var(--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(--line);
  border-radius: var(--radius);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--ink-900);
}

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

.home-main {
  padding-bottom: 64px;
}

.inner-main {
  padding-bottom: 64px;
}

/* 内页统一骨架：面包屑 + 标题区 + 双栏 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 20px 0 0;
  font-size: 13px;
  color: var(--ink-500);
}

.breadcrumb a {
  color: var(--ink-500);
}

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

.breadcrumb-sep {
  color: var(--ink-500);
  opacity: 0.7;
}

.breadcrumb-current {
  color: var(--ink-700);
}

.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 20px 24px 0;
  font-size: 13px;
  color: var(--ink-500);
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--ink-500);
  opacity: 0.7;
}

.breadcrumb-link {
  color: var(--ink-500);
}

.page-header {
  padding: 12px 0 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}

.page-title {
  font-size: 34px;
  line-height: 1.35;
  color: var(--ink-900);
  font-weight: 600;
  letter-spacing: 0;
}

.page-title-lead {
  max-width: 760px;
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-500);
}

.page-title-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
}

.page-lead {
  max-width: 780px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-500);
}

.page-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}

/* 内页顶部标题区（section.page-title 在 .inner-main 内） */
.inner-main > .page-title {
  padding: 20px 0 24px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}

/* 双栏布局 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--main-col)) minmax(0, var(--side-col));
  gap: var(--gap);
  align-items: start;
}

.page-layout.sidebar-left,
.sidebar-left .page-layout {
  grid-template-columns: minmax(0, var(--side-col)) minmax(0, var(--main-col));
}

.page-layout > main,
.page-layout > article,
.page-layout > aside {
  min-width: 0;
}

.page-layout > aside {
  position: sticky;
  top: 24px;
}

.page-layout > main > .breadcrumb {
  padding-top: 0;
}

/* 页脚 */
.site-footer {
  background-color: #0f1f2e;
  color: #c6d2da;
  margin-top: 0;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 32px 48px;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 10px;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  color: #a8b6c1;
  max-width: 360px;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px 32px;
}

.footer-group-title {
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: 0.06em;
  text-transform: none;
  margin-bottom: 12px;
}

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

.footer-link {
  font-size: 14px;
  color: #a8b6c1;
}

.footer-link:hover {
  color: #ffffff;
}

.footer-boundary {
  grid-column: 1 / -1;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 13px;
  line-height: 1.7;
  color: #8b9ba7;
}

.footer-copyright {
  grid-column: 1 / -1;
  font-size: 13px;
  color: #7d8d99;
}

/* --------------------------------------------------------------------------
   3. components — 共用组件
   -------------------------------------------------------------------------- */

/* 文字链接 */
.text-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}

.text-link::after {
  content: " →";
  font-size: 13px;
}

.text-link:hover {
  color: var(--accent-deep);
  border-bottom-color: var(--accent-deep);
  text-decoration: none;
}

/* 状态标签 */
.status-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 10px;
  font-size: 13px;
  line-height: 1.6;
  border-radius: 3px;
  background-color: var(--tag-bg);
  color: var(--accent-deep);
  white-space: nowrap;
}

.status-tag::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
}

.status-green,
.status-tag--ok,
.status-normal,
.status-ready {
  background-color: var(--green-bg);
  color: var(--green);
}

.status-amber,
.status-tag--normal {
  background-color: var(--amber-bg);
  color: var(--amber);
}

/* 更新时间 */
.update-tag,
.updated-tag,
.meta-updated {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  color: var(--ink-500);
  font-variant-numeric: tabular-nums;
}

.update-tag::before,
.updated-tag::before,
.meta-updated::before {
  content: "更新 ";
  margin-right: 2px;
  color: var(--ink-500);
}

/* 表格 */
.table-wrap,
.table-scroll {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.data-table {
  width: 100%;
  font-size: 14px;
  line-height: 1.65;
  vertical-align: top;
}

.data-table caption {
  text-align: left;
}

.data-table thead th {
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  color: var(--ink-900);
  background-color: #eef2f4;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.data-table tbody td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ink-700);
  vertical-align: top;
}

.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.data-table tbody tr:hover {
  background-color: #f7fafb;
}

.data-table tbody td a {
  color: var(--accent);
}

/* 图片通用容器 */
.hero-media,
.stage-media,
.catalog-figure,
.media-figure,
.help-note-media,
.topic-media,
.method-figure {
  overflow: hidden;
  border-radius: var(--radius);
  background-color: var(--line-soft);
}

.hero-media img,
.stage-media img,
.catalog-figure img,
.media-figure img,
.help-note-media img,
.topic-media img,
.method-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

figcaption,
.figure-caption {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-500);
  padding: 10px 2px 0;
}

/* 摘要侧栏 */
.page-summary {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 22px 24px;
}

.summary-heading,
.summary-title,
.aside-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.summary-fields {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.summary-field {
  display: block;
}

.summary-field dt,
.summary-fields > dt {
  font-size: 13px;
  color: var(--ink-500);
  margin-bottom: 2px;
}

.summary-field dd,
.summary-fields > dd {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-700);
}

.summary-term {
  font-size: 13px;
  color: var(--ink-500);
  margin-bottom: 2px;
}

.summary-desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-700);
}

.summary-links {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

.summary-links-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 10px;
}

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

.summary-link {
  font-size: 14px;
  color: var(--accent);
}

/* 小节标题 */
.section-head {
  margin-bottom: 20px;
}

.section-head h2 {
  font-size: 24px;
  line-height: 1.4;
  color: var(--ink-900);
}

.section-desc {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-500);
  max-width: 720px;
}

.section-heading {
  font-size: 22px;
  line-height: 1.4;
  color: var(--ink-900);
  margin-bottom: 10px;
}

.section-lead {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-500);
  margin-bottom: 18px;
  max-width: 720px;
}

/* FAQ 折叠 */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
}

.faq-question {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  flex: 0 0 auto;
  font-size: 18px;
  font-weight: 400;
  color: var(--accent);
  line-height: 1.4;
}

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

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

.faq-answer {
  padding: 14px 18px 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-700);
}

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

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

.faq-answer .text-link {
  margin-top: 8px;
}

/* 相关入口组 */
.related-list,
.related-link-list,
.topic-link-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.topic-link-item,
.related-item {
  padding: 14px 16px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.topic-link-desc,
.related-desc,
.related-text {
  margin-top: 4px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-500);
}

/* --------------------------------------------------------------------------
   4. pages — 首页
   -------------------------------------------------------------------------- */

.home-main > section {
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
}

.home-main > section:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

/* hero */
.hero {
  padding-top: 40px;
}

.hero-top {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px;
  align-items: start;
}

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

.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 12px;
}

.hero-copy h1 {
  font-size: 34px;
  line-height: 1.35;
  color: var(--ink-900);
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-700);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: 20px;
}

.hero-link-primary {
  font-weight: 600;
  color: var(--accent-deep);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

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

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

.hero-service-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

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

.group-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.group-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.group-list li {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-700);
  padding-left: 14px;
  position: relative;
}

.group-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--accent);
}

.group-note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-500);
  padding-top: 10px;
  border-top: 1px dashed var(--line);
}

/* 服务目录摘要表 */
.services-summary .data-table {
  min-width: 640px;
}

/* 能力专题索引（首页） */
.capability-index .topic-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.capability-index .topic-item {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.capability-index .topic-title {
  font-size: 17px;
  line-height: 1.5;
}

.capability-index .topic-title a {
  color: var(--ink-900);
  font-weight: 600;
}

.capability-index .topic-title a::after {
  content: " →";
  color: var(--accent);
  font-size: 14px;
}

.capability-index .topic-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.capability-index .topic-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
}

/* 合作流程预览 */
.cooperation-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 32px;
  align-items: start;
}

.stage-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

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

.stage-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
}

.stage-action {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-700);
  margin-bottom: 6px;
}

.stage-output {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-500);
  margin-bottom: 6px;
}

.stage-gate {
  font-size: 13px;
  line-height: 1.65;
  color: var(--amber);
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}

.stage-media {
  aspect-ratio: 3 / 4;
  align-self: start;
}

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

/* 交付标准摘要 */
.delivery-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 40px;
  align-items: start;
}

.delivery-intro h2 {
  font-size: 24px;
  line-height: 1.4;
  margin-bottom: 12px;
}

.delivery-intro p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-700);
  margin-bottom: 16px;
  max-width: 420px;
}

.delivery-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

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

.field-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
}

.field-desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-500);
  flex: 1 1 auto;
}

/* 服务更新公告 */
.announcement-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.announcement-item {
  padding: 18px 20px;
  border-bottom: 1px solid var(--line-soft);
}

.announcement-item:last-child {
  border-bottom: 0;
}

.announcement-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  font-size: 13px;
  color: var(--ink-500);
  font-variant-numeric: tabular-nums;
}

.announcement-title {
  font-size: 16px;
  line-height: 1.5;
  margin-bottom: 4px;
}

.announcement-title a {
  color: var(--ink-900);
  font-weight: 600;
}

.announcement-title a:hover {
  color: var(--accent-deep);
}

.announcement-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-500);
}

/* 常见问题摘要 */
.faq-summary .faq-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

/* 合作准备入口 */
.prep-entry {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  gap: 40px;
  align-items: center;
}

.prep-intro h2 {
  font-size: 24px;
  line-height: 1.4;
  margin-bottom: 12px;
}

.prep-intro p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-700);
  max-width: 520px;
}

.prep-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 20px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.prep-link {
  font-size: 15px;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   5. pages — 内页通用模块
   -------------------------------------------------------------------------- */

/* --- services --- */
.catalog-intro {
  margin-bottom: 28px;
}

.catalog-figure {
  margin-top: 16px;
  aspect-ratio: 16 / 9;
}

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

.filter-bar {
  position: sticky;
  top: 0;
  z-index: 5;
  background-color: var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
  margin: 0 0 24px;
}

.filter-bar-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-500);
  margin-bottom: 8px;
}

.filter-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-button {
  padding: 7px 14px;
  min-height: 36px;
  font-size: 14px;
  color: var(--ink-700);
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.filter-button:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.filter-button.is-active {
  background-color: var(--ink-900);
  border-color: var(--ink-900);
  color: #ffffff;
}

.entry-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 32px;
}

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

.entry-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.entry-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink-900);
}

.entry-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px 24px;
  margin-bottom: 14px;
}

.entry-field {
  min-width: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.entry-field::before {
  content: attr(data-label);
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-500);
  margin-bottom: 2px;
}

.scenario-notes {
  margin-bottom: 32px;
}

.scenario-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

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

.scenario-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 8px;
}

.scenario-condition {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
  margin-bottom: 8px;
}

.scenario-boundary {
  font-size: 13px;
  line-height: 1.65;
  color: var(--amber);
  padding-top: 8px;
  border-top: 1px dashed var(--line);
}

.related-topics {
  margin-bottom: 8px;
}

.topic-link {
  font-size: 15px;
  font-weight: 600;
}

/* --- capabilities --- */
.topic-index-block {
  margin-bottom: 36px;
}

.topic-index {
  min-width: 620px;
}

.topic-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}

.topic-card {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 20px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  align-items: start;
}

.topic-media {
  aspect-ratio: 4 / 3;
  align-self: start;
}

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

.topic-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.topic-cards .topic-title {
  font-size: 17px;
  line-height: 1.5;
  color: var(--ink-900);
}

.topic-summary {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-700);
}

.topic-facts {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 4px 14px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-500);
  padding: 10px 12px;
  background-color: #f7fafb;
  border-radius: 4px;
}

.topic-facts dt {
  font-weight: 600;
  color: var(--ink-700);
}

.topic-facts dd {
  margin: 0;
}

.topic-cards .topic-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}

.citation-note {
  margin-bottom: 32px;
}

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

.citation-item {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 16px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  align-items: start;
}

.citation-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-deep);
}

.citation-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.related-services {
  margin-bottom: 8px;
}

.related-link {
  font-size: 15px;
  font-weight: 600;
}

/* --- cooperation --- */
.stage-table {
  margin-bottom: 32px;
}

.stage-table .stage-media {
  margin: 16px 0 20px;
  aspect-ratio: 16 / 9;
  max-width: 100%;
}

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

.stage-table-grid {
  min-width: 0;
  table-layout: fixed;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.stage-table-grid thead th {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-900);
  background-color: #eef2f4;
  padding: 10px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: normal;
  word-break: break-word;
}

.stage-table-grid tbody td {
  padding: 12px 10px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-700);
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.stage-table-grid tbody tr:last-child td {
  border-bottom: 0;
}

.section-footnote {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-500);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.prep-list {
  margin-bottom: 32px;
}

.prep-checklist {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.prep-item {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 16px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  align-items: start;
}

.prep-item-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-900);
}

.prep-item-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.prep-copy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.copy-button {
  padding: 8px 16px;
  min-height: 40px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-900);
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
}

.copy-button:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

.copy-hint {
  font-size: 13px;
  color: var(--ink-500);
}

.prep-checklist-text {
  display: block;
  margin: 0;
  padding: 14px 16px;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-700);
  background-color: #f7fafb;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
  max-width: 100%;
}

.stage-output {
  margin-bottom: 32px;
}

.stage-output-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  counter-reset: stage-out;
}

.stage-output-item {
  padding: 16px 18px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  border-left: 3px solid var(--accent);
}

.stage-output-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 6px;
}

.stage-output-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.related-faq {
  margin-bottom: 8px;
}

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

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

.related-faq-question {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 6px;
}

.related-faq-answer {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
  margin-bottom: 8px;
}

/* --- delivery --- */
.delivery-fields {
  margin-bottom: 32px;
}

.delivery-fields-body {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.media-figure {
  aspect-ratio: 3 / 4;
  align-self: start;
}

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

.delivery-table {
  min-width: 0;
  table-layout: fixed;
}

.delivery-table thead th {
  font-size: 13px;
  padding: 10px 10px;
  white-space: normal;
  word-break: break-word;
}

.delivery-table tbody td {
  padding: 12px 10px;
  font-size: 14px;
  line-height: 1.65;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.acceptance-list {
  margin-bottom: 32px;
}

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

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

.check-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
}

.check-content,
.check-standard,
.check-record {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
  margin-bottom: 4px;
}

.check-standard {
  color: var(--accent-deep);
}

.check-record {
  font-size: 13px;
  color: var(--ink-500);
}

.roles {
  margin-bottom: 32px;
}

.roles-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

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

.roles-heading {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
}

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

.roles-list li {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-700);
  padding-left: 14px;
  position: relative;
}

.roles-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--accent);
}

.change-log {
  margin-bottom: 32px;
}

.change-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

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

.change-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 8px;
}

.change-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.related-entries {
  margin-bottom: 8px;
}

.related-entries .entry-list {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 0;
}

.related-entries .entry-item {
  flex: 1 1 200px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.entry-link {
  font-size: 15px;
  font-weight: 600;
}

.entry-desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-500);
}

/* --- faq --- */
.question-index {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.aside-desc {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-500);
  margin-bottom: 14px;
}

.index-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.index-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 8px;
  min-height: 44px;
  font-size: 14px;
  color: var(--ink-700);
  border-bottom: 1px solid var(--line-soft);
}

.index-item:last-child .index-link {
  border-bottom: 0;
}

.index-link:hover {
  color: var(--accent-deep);
  background-color: #f7fafb;
  text-decoration: none;
}

.index-name {
  font-weight: 500;
}

.index-count {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--ink-500);
  font-variant-numeric: tabular-nums;
}

.help-note {
  margin-bottom: 32px;
}

.help-note-body {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.help-note-media {
  aspect-ratio: 4 / 3;
  align-self: start;
}

.help-note-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.help-note-item {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
  padding-left: 16px;
  position: relative;
}

.help-note-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent);
}

.faq-content > .faq-list {
  gap: 20px;
  margin-bottom: 32px;
}

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

.faq-group-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--ink-900);
  padding: 0 0 8px;
  border-bottom: 2px solid var(--line);
  scroll-margin-top: 20px;
}

.faq-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-top: 8px;
}

.related-pages {
  margin-bottom: 8px;
}

.related-pages-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-500);
  margin-bottom: 14px;
}

.related-link-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 16px;
}

.related-link-list .related-link {
  display: block;
  padding: 12px 14px;
  min-height: 44px;
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-900);
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.related-link-list .related-link:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
  text-decoration: none;
}

/* --- method --- */
.inner-main > .page-header {
  padding: 12px 0 16px;
  border-bottom: 0;
  margin-bottom: 0;
}

.inner-main > .page-header .page-title {
  font-size: 34px;
}

.inner-main > .page-title {
  padding-top: 0;
}

.method-content > section {
  margin-bottom: 32px;
}

.method-content > section:last-child {
  margin-bottom: 0;
}

.judgement-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

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

.judgement-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 6px;
}

.judgement-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.method-figure {
  margin-bottom: 20px;
  aspect-ratio: 16 / 9;
}

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

.judgement-notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.judgement-note {
  padding: 16px 18px;
  background-color: #f7fafb;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.note-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-deep);
  margin-bottom: 6px;
}

.note-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

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

.boundary-item {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 14px 18px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.boundary-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-900);
}

.boundary-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
}

.boundary-link {
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}

.verification-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  counter-reset: verify;
}

.verification-step {
  position: relative;
  padding: 18px 18px 18px 20px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  border-left: 3px solid var(--accent);
  counter-increment: verify;
}

.step-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 8px;
}

.step-name::before {
  content: counter(verify, decimal-leading-zero);
  display: inline-block;
  margin-right: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.step-action,
.step-target,
.step-record {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
  margin-bottom: 4px;
}

.step-target {
  color: var(--accent-deep);
}

.step-record {
  font-size: 13px;
  color: var(--ink-500);
}

.communication-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

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

.communication-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-900);
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-soft);
}

.communication-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-700);
  margin-bottom: 8px;
}

.communication-note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--amber);
}

/* --- 404 --- */
.error-main {
  padding-top: 72px;
  padding-bottom: 96px;
}

.error-panel {
  max-width: 640px;
  padding: 32px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.error-code {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 10px;
}

.error-title {
  font-size: 30px;
  line-height: 1.35;
  color: var(--ink-900);
  margin-bottom: 12px;
}

.error-desc {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-700);
  margin-bottom: 20px;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-bottom: 20px;
}

.error-link {
  display: inline-block;
  padding: 8px 14px;
  min-height: 40px;
  font-size: 14px;
  color: var(--ink-900);
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
}

.error-link:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
  text-decoration: none;
}

.error-note {
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-500);
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
}

/* --------------------------------------------------------------------------
   6. responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1080px) {
  .page-layout,
  .page-layout.sidebar-left,
  .sidebar-left .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .page-layout > aside {
    position: static;
  }

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

  .stage-media {
    aspect-ratio: 16 / 9;
    max-width: 560px;
  }
}

@media (max-width: 960px) {
  .header-inner {
    min-height: 60px;
    padding: 0 20px;
    flex-wrap: wrap;
    row-gap: 0;
  }

  .site-nav {
    position: relative;
    flex: 0 0 auto;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-list {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    z-index: 30;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 220px;
    padding: 8px;
    background-color: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 12px 28px rgba(18, 38, 58, 0.12);
  }

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

  .nav-list li {
    width: 100%;
  }

  .nav-link {
    display: block;
    padding: 11px 12px;
    min-height: 44px;
    font-size: 15px;
    border-bottom: 0;
    border-left: 2px solid transparent;
  }

  .nav-link.is-current {
    border-bottom: 0;
    border-left-color: var(--accent);
    background-color: #f3f7f8;
  }

  .site-main {
    padding: 0 20px;
  }

  .breadcrumb-list {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero-top {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .hero-media {
    aspect-ratio: 16 / 9;
    order: 2;
  }

  .hero-copy {
    order: 1;
  }

  .hero-service-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .capability-index .topic-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .delivery-summary,
  .prep-entry {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .delivery-fields {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .footer-nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .scenario-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .entry-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topic-card {
    grid-template-columns: 180px minmax(0, 1fr);
  }

  .delivery-fields-body,
  .help-note-body {
    grid-template-columns: 200px minmax(0, 1fr);
  }

  .roles-grid,
  .change-grid,
  .communication-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .boundary-item {
    grid-template-columns: 150px minmax(0, 1fr);
    row-gap: 8px;
  }

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

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .header-inner {
    padding: 0 16px;
  }

  .brand {
    font-size: 18px;
  }

  .site-main {
    padding: 0 16px;
  }

  .breadcrumb-list {
    padding-left: 16px;
    padding-right: 16px;
  }

  .breadcrumb {
    padding-top: 16px;
    font-size: 12px;
  }

  .page-title,
  .inner-main > .page-header .page-title,
  .hero-copy h1 {
    font-size: 27px;
    line-height: 1.4;
  }

  .section-head h2,
  .delivery-intro h2,
  .prep-intro h2,
  .section-heading {
    font-size: 20px;
    line-height: 1.4;
  }

  .home-main > section {
    padding: 28px 0;
  }

  .hero {
    padding-top: 24px;
  }

  .hero-service-groups {
    grid-template-columns: minmax(0, 1fr);
    margin-top: 24px;
    padding-top: 20px;
  }

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

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

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

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

  .footer-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .footer-inner {
    padding: 36px 16px 24px;
  }

  /* 内页：手机端主内容在前，摘要侧栏回到正文之后 */
  .page-layout,
  .page-layout.sidebar-left,
  .sidebar-left .page-layout {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }

  .page-layout > main,
  .page-layout > article {
    order: 1;
    width: 100%;
  }

  .page-layout > aside {
    order: 2;
    width: 100%;
    position: static;
  }

  /* services */
  .filter-bar {
    position: static;
    padding: 12px 0;
  }

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

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

  /* capabilities */
  .topic-card {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }

  .topic-media {
    aspect-ratio: 16 / 9;
  }

  .citation-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  /* cooperation：流程表改为字段式纵向条目 */
  .stage-table-grid {
    display: block;
    border: 0;
    background-color: transparent;
    border-radius: 0;
    overflow: visible;
  }

  .stage-table-grid thead {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
  }

  .stage-table-grid tbody {
    display: block;
  }

  .stage-table-grid tbody tr {
    display: block;
    margin-bottom: 12px;
    padding: 14px 16px;
    background-color: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }

  .stage-table-grid tbody tr:last-child {
    margin-bottom: 0;
  }

  .stage-table-grid tbody td {
    display: block;
    padding: 0 0 8px;
    border-bottom: 0;
    word-break: break-word;
    overflow-wrap: anywhere;
  }

  .stage-table-grid tbody td:last-child {
    padding-bottom: 0;
  }

  .stage-table-grid tbody td::before {
    content: attr(data-label);
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--ink-500);
    margin-bottom: 2px;
  }

  .stage-table .stage-media {
    aspect-ratio: 16 / 9;
    margin: 14px 0 18px;
  }

  .prep-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  /* delivery：字段表改为纵向条目 */
  .delivery-fields-body {
    grid-template-columns: minmax(0, 1fr);
  }

  .media-figure {
    aspect-ratio: 16 / 9;
    max-width: 100%;
  }

  .delivery-table {
    display: block;
    border: 0;
    background-color: transparent;
    overflow: visible;
  }

  .delivery-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
  }

  .delivery-table tbody {
    display: block;
  }

  .delivery-table tbody tr {
    display: block;
    margin-bottom: 12px;
    padding: 14px 16px;
    background-color: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }

  .delivery-table tbody tr:last-child {
    margin-bottom: 0;
  }

  .delivery-table tbody td {
    display: block;
    padding: 0 0 8px;
    border-bottom: 0;
    word-break: break-word;
    overflow-wrap: anywhere;
  }

  .delivery-table tbody td:last-child {
    padding-bottom: 0;
  }

  .delivery-table tbody td::before {
    content: attr(data-label);
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--ink-500);
    margin-bottom: 2px;
  }

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

  .related-entries .entry-list {
    flex-direction: column;
  }

  .related-entries .entry-item {
    flex: 1 1 auto;
  }

  /* faq */
  .help-note-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .help-note-media {
    aspect-ratio: 16 / 9;
  }

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

  .question-index {
    padding: 16px;
  }

  /* method */
  .judgement-list,
  .judgement-notes,
  .verification-steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .boundary-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    align-items: start;
  }

  .boundary-link {
    grid-column: 1;
  }

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

  /* 404 */
  .error-main {
    padding-top: 40px;
    padding-bottom: 64px;
  }

  .error-panel {
    padding: 24px 20px;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !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;
  }
}

/* 程序验收反馈：移动端防溢出 */
@media (max-width: 768px) {
  .site-main,
  .site-main * {
    min-width: 0;
    max-width: 100%;
  }

  .site-main :is(h1, h2, h3, h4, p, a, span) {
    overflow-wrap: anywhere;
  }
}