/* ==========================================================================
   17吃瓜 · 企业内容展示服务官网
   base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base
   -------------------------------------------------------------------------- */
:root {
  --paper: #F3F5F1;
  --surface: #FFFFFF;
  --ink: #18231F;
  --ink-soft: #5F6C66;
  --brand: #0E5F4D;
  --brand-deep: #0A4739;
  --accent: #D8F06A;
  --line: #D9E0DA;
  --warn: #7A4D2B;
  --radius: 6px;
  --container: 1160px;
  --gutter: 24px;
  --reading: 760px;
  --aside-w: 300px;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Hiragino Sans GB", sans-serif;
  --font-mono: "SFMono-Regular", "Menlo", "Consolas", "Liberation Mono", monospace;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

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

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

p {
  margin: 0 0 12px;
}

p:last-child {
  margin-bottom: 0;
}

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

dl, dd {
  margin: 0;
}

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

a {
  color: var(--brand);
  text-decoration: none;
  transition: color .18s ease;
}

a:hover {
  color: var(--brand-deep);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 3px;
}

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

figure {
  margin: 0;
}

figcaption {
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
}

strong {
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.site-main {
  display: block;
  padding-bottom: 0;
}

.inner-main {
  padding-bottom: 56px;
}

.section {
  padding: 56px 0;
}

.section--alt {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.section-head h2 {
  font-size: 24px;
  line-height: 1.35;
  margin-bottom: 8px;
}

.section-head--inline {
  max-width: none;
}

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

.section-note {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.7;
  margin: 0 0 24px;
}

.section-foot {
  margin: 24px 0 0;
  font-size: 15px;
}

.section-title {
  font-size: 24px;
  line-height: 1.35;
  margin-bottom: 8px;
}

/* 内页统一布局骨架 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--aside-w);
  gap: 40px;
  align-items: start;
  margin-top: 4px;
}

.page-layout .page-content,
.page-layout .layout-main {
  min-width: 0;
}

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

/* 左侧栏页面：aside 在前 */
.sidebar-left .page-layout,
.page-layout.sidebar-left {
  grid-template-columns: var(--aside-w) minmax(0, 1fr);
}

/* --------------------------------------------------------------------------
   components · 页头与导航
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(243, 245, 241, .96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(140%) blur(6px);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: var(--ink);
  flex: 0 0 auto;
}

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

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

.brand-sub {
  font-size: 12px;
  color: var(--ink-soft);
  letter-spacing: .04em;
}

.main-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  min-width: 0;
}

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

.nav-link {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 12px;
  border-radius: 4px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--brand);
  background: rgba(14, 95, 77, .06);
}

.nav-link.is-current {
  color: var(--brand);
  font-weight: 600;
  background: rgba(14, 95, 77, .08);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.action-link {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 14px;
  border-radius: 4px;
  font-size: 14px;
  color: var(--ink-soft);
  border: 1px solid transparent;
  white-space: nowrap;
}

.action-link:hover {
  color: var(--brand);
  border-color: var(--line);
}

.action-link--strong {
  color: var(--surface);
  background: var(--brand);
  border-color: var(--brand);
}

.action-link--strong:hover {
  color: #fff;
  background: var(--brand-deep);
  border-color: var(--brand-deep);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0 11px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface);
}

.menu-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
}

.mobile-menu {
  border-top: 1px solid var(--line);
  background: var(--surface);
}

.mobile-menu[hidden] {
  display: none;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  padding: 8px 0;
}

.mobile-nav-list a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0 24px;
  color: var(--ink);
  font-size: 16px;
  border-bottom: 1px solid var(--line);
}

.mobile-nav-list li:last-child a {
  border-bottom: 0;
}

.mobile-nav-list a:hover,
.mobile-nav-list a[aria-current="page"] {
  color: var(--brand);
  background: rgba(14, 95, 77, .05);
}

/* --------------------------------------------------------------------------
   components · 通用按钮 / 文本链接 / 标签
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background-color .18s ease, border-color .18s ease, color .18s ease;
}

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

.btn-primary:hover {
  background: var(--brand-deep);
  border-color: var(--brand-deep);
  color: #fff;
}

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

.btn-ghost:hover {
  border-color: var(--brand);
  color: var(--brand-deep);
  background: rgba(14, 95, 77, .04);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand);
  font-size: 15px;
  border-bottom: 1px solid rgba(14, 95, 77, .28);
  padding-bottom: 1px;
  transition: color .18s ease, border-color .18s ease;
}

.text-link::after {
  content: "→";
  font-size: 13px;
  transition: transform .18s ease;
}

.text-link:hover {
  color: var(--brand-deep);
  border-color: var(--brand-deep);
}

.text-link:hover::after {
  transform: translateX(3px);
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--brand);
  background: rgba(216, 240, 106, .45);
  padding: 3px 10px;
  border-radius: 3px;
  margin-bottom: 14px;
}

/* --------------------------------------------------------------------------
   components · 面包屑 / 页标题区
   -------------------------------------------------------------------------- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-soft);
  padding: 18px 0 6px;
  flex-wrap: wrap;
}

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

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

.breadcrumb-sep {
  color: #B7C2BC;
}

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

.page-header {
  padding: 6px 0 18px;
}

.page-title {
  font-size: 34px;
  line-height: 1.25;
  font-weight: 600;
  color: var(--ink);
  max-width: 900px;
}

.page-title-band {
  padding: 8px 0 20px;
}

.page-title-band .eyebrow {
  margin-bottom: 10px;
}

.page-lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-soft);
  max-width: 760px;
  margin: 0 0 14px;
}

.page-eyebrow {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--brand);
  margin: 0 0 8px;
}

.page-title-inner {
  padding: 8px 0 20px;
}

.page-title-links,
.page-anchors,
.anchor-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0;
  padding: 0;
}

.page-title-links .text-link,
.page-anchors .text-link,
.anchor-links .text-link {
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   components · 图片容器
   -------------------------------------------------------------------------- */
.media-figure,
.hero-figure,
.delivery-figure,
.work-photo-figure,
.duties-photo,
.aside-figure {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.media-figure img,
.hero-figure img,
.delivery-figure img,
.work-photo-figure img,
.duties-photo img,
.aside-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 10;
  background: #E6EBE6;
}

.media-figure figcaption,
.hero-figure figcaption,
.delivery-figure figcaption,
.work-photo-caption,
.duties-photo figcaption,
.aside-figure figcaption,
.media-caption {
  display: block;
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

/* --------------------------------------------------------------------------
   components · 折叠问答（首页摘要 + FAQ 页）
   -------------------------------------------------------------------------- */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 860px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 18px;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: 14px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.faq-question::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--brand);
  line-height: 1;
}

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

.faq-answer {
  padding: 0 0 16px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

/* --------------------------------------------------------------------------
   components · 侧栏区块
   -------------------------------------------------------------------------- */
.aside-block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}

.aside-block + .aside-block {
  margin-top: 20px;
}

.aside-title {
  font-size: 17px;
  line-height: 1.4;
  margin-bottom: 8px;
}

.aside-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 14px;
}

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

.related-list li a,
.related-link {
  display: flex;
  align-items: center;
  min-height: 44px;
  color: var(--ink);
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}

.related-list li:last-child a {
  border-bottom: 0;
}

.related-list li a:hover,
.related-link:hover {
  color: var(--brand);
}

/* --------------------------------------------------------------------------
   components · 页脚
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--line);
  padding: 44px 0 24px;
  color: var(--ink-soft);
  font-size: 14px;
}

.footer-inner {
  display: block;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}

.footer-brand {
  max-width: 480px;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 8px;
}

.footer-brand-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0;
}

.footer-entry {
  margin: 0;
  font-size: 14px;
}

.footer-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.footer-group-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 10px;
}

.footer-group ul {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-group ul a {
  display: flex;
  align-items: center;
  min-height: 36px;
  color: var(--ink-soft);
  font-size: 14px;
}

.footer-group ul a:hover {
  color: var(--brand);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-top: 20px;
  flex-wrap: wrap;
}

.footer-note {
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
}

.footer-copyright {
  margin: 0;
  font-size: 13px;
  color: #8A968F;
}

/* --------------------------------------------------------------------------
   components · 移动端底部任务条
   -------------------------------------------------------------------------- */
.mobile-taskbar {
  display: none;
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */
.hero {
  padding: 40px 0 48px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: 48px;
  align-items: start;
}

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

.hero-copy h1 {
  font-size: 46px;
  line-height: 1.18;
  font-weight: 700;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink);
  margin: 0 0 10px;
}

.hero-sub {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0 0 24px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.capability-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.capability-tags li {
  font-size: 13px;
  color: var(--brand);
  background: rgba(216, 240, 106, .38);
  border: 1px solid rgba(14, 95, 77, .12);
  border-radius: 3px;
  padding: 4px 10px;
  line-height: 1.5;
}

.hero-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.hero-steps li {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.hero-steps .step-no {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--brand);
  font-weight: 600;
}

.hero-steps .step-text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.hero-visual {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.hero-catalog {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.hero-catalog li {
  border-bottom: 1px solid var(--line);
}

.hero-catalog li:last-child {
  border-bottom: 0;
}

.hero-catalog a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 52px;
  padding: 10px 16px;
  color: var(--ink);
}

.hero-catalog a:hover {
  background: rgba(14, 95, 77, .04);
  color: var(--brand);
}

.catalog-name {
  font-size: 15px;
  font-weight: 600;
}

.catalog-target {
  font-size: 13px;
  color: var(--ink-soft);
  text-align: right;
}

/* 服务事项总览 */
.service-rows {
  border-top: 1px solid var(--line);
}

.service-row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  gap: 20px;
  align-items: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.service-row .row-no {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
  padding-top: 3px;
}

.service-row .row-body {
  min-width: 0;
}

.service-row .row-title {
  font-size: 18px;
  line-height: 1.45;
  margin-bottom: 6px;
}

.service-row .row-scene {
  font-size: 15px;
  color: var(--ink);
  margin: 0 0 4px;
}

.service-row .row-output {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0;
}

.service-row .row-link {
  align-self: center;
  font-size: 14px;
  color: var(--brand);
  border-bottom: 1px solid rgba(14, 95, 77, .28);
  padding-bottom: 1px;
  white-space: nowrap;
}

.service-row .row-link:hover {
  color: var(--brand-deep);
  border-color: var(--brand-deep);
}

/* 需求判断三段 */
.triage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.triage-col {
  min-width: 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.triage-step {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--brand);
  margin: 0 0 8px;
}

.triage-title {
  font-size: 18px;
  line-height: 1.45;
  margin-bottom: 8px;
}

.triage-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 12px;
}

.triage-note {
  font-size: 13px;
  line-height: 1.6;
  color: var(--warn);
  border-left: 2px solid var(--warn);
  padding-left: 10px;
  margin: 0;
}

/* 交付预览 */
.delivery-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 40px;
  align-items: start;
}

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

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

.check-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 4px;
}

.check-list .check-title {
  font-size: 16px;
  line-height: 1.45;
  margin-bottom: 4px;
}

.check-list .check-text {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0;
}

.boundary-note {
  margin: 20px 0 0;
  padding: 12px 14px;
  background: rgba(122, 77, 43, .06);
  border-left: 3px solid var(--warn);
  border-radius: 3px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--warn);
}

/* 工作方法五阶段 */
.method-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.method-cell {
  min-width: 0;
  padding: 18px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  border-top: 3px solid var(--brand);
}

.method-cell .method-no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
  background: var(--accent);
  padding: 2px 8px;
  border-radius: 3px;
  margin-bottom: 10px;
}

.method-cell .method-name {
  font-size: 16px;
  line-height: 1.45;
  margin-bottom: 8px;
}

.method-cell .method-output {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink);
  margin: 0 0 6px;
}

.method-cell .method-coop {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin: 0;
}

/* 职责摘要 */
.duties-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
  align-items: start;
}

.duties-intro {
  min-width: 0;
}

.duties-intro h2 {
  font-size: 24px;
  line-height: 1.35;
  margin-bottom: 12px;
}

.duties-intro p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0 0 10px;
}

.duties-roles {
  min-width: 0;
}

.duties-roles .roles-title {
  font-size: 16px;
  line-height: 1.4;
  margin-bottom: 10px;
  color: var(--ink-soft);
  font-weight: 500;
}

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

.role-row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

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

.role-row .role-desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* 公开说明 */
.rule-list {
  border-top: 1px solid var(--line);
}

.rule-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.rule-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.rule-def {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* 合作入口 */
.cooperation-entry {
  padding: 32px 0;
}

.cooperation-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--brand);
  border-radius: var(--radius);
  flex-wrap: wrap;
}

.cooperation-text {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  margin: 0;
  max-width: 620px;
}

.cooperation-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   pages · 服务事项
   -------------------------------------------------------------------------- */
.service-intro {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 28px;
  align-items: start;
  margin-bottom: 40px;
}

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

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

.intro-copy h2 {
  font-size: 20px;
  line-height: 1.4;
  margin-bottom: 10px;
}

.intro-copy p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0 0 10px;
}

.service-groups {
  margin-bottom: 40px;
}

.service-groups > h2 {
  font-size: 24px;
  line-height: 1.35;
  margin-bottom: 8px;
}

.service-item {
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.service-item:last-child {
  border-bottom: 1px solid var(--line);
}

.service-item-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.service-item-head .service-index {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  background: var(--accent);
  padding: 2px 8px;
  border-radius: 3px;
  flex: 0 0 auto;
}

.service-item-head h3 {
  font-size: 19px;
  line-height: 1.4;
}

.service-def {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
  margin: 0 0 12px;
}

.service-points {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0 0 14px;
  padding-left: 0;
}

.service-points li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.service-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
}

.service-scope,
.service-exclude {
  display: flex;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  margin: 0 0 8px;
  align-items: baseline;
}

.service-scope .scope-label,
.service-exclude .exclude-label {
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 3px;
  line-height: 1.6;
}

.service-scope .scope-label {
  color: var(--brand);
  background: rgba(14, 95, 77, .09);
}

.service-exclude .exclude-label {
  color: var(--warn);
  background: rgba(122, 77, 43, .1);
}

.service-scope {
  color: var(--ink-soft);
}

.service-exclude {
  color: var(--warn);
}

.service-link {
  margin: 12px 0 0;
}

.boundary {
  margin-top: 8px;
}

.boundary > h2 {
  font-size: 22px;
  line-height: 1.35;
  margin-bottom: 8px;
}

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

.boundary-row {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.boundary-row dt {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.boundary-row dd {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.prep-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.prep-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.prep-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.prep-list .prep-name {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   pages · 工作方法
   -------------------------------------------------------------------------- */
.method-rail {
  padding: 8px 0 40px;
}

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

.stage-item {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.stage-item .stage-index {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--brand);
  line-height: 1.2;
}

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

.stage-name {
  font-size: 19px;
  line-height: 1.4;
  margin-bottom: 8px;
}

.stage-text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
  margin: 0 0 8px;
}

.stage-output {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0 0 6px;
}

.stage-client {
  font-size: 14px;
  line-height: 1.65;
  color: var(--brand);
  margin: 0;
}

.work-photo {
  padding: 8px 0 40px;
}

.work-photo-figure img {
  aspect-ratio: 21 / 9;
}

.client-support {
  padding: 8px 0 40px;
}

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

.support-item {
  min-width: 0;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.support-title {
  font-size: 16px;
  line-height: 1.45;
  margin-bottom: 6px;
}

.support-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 8px;
}

.support-stage {
  font-size: 13px;
  line-height: 1.6;
  color: var(--brand);
  margin: 0;
}

.stage-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--brand);
  background: rgba(216, 240, 106, .4);
  padding: 2px 8px;
  border-radius: 3px;
}

.output-summary {
  padding: 8px 0 48px;
}

.output-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.output-card {
  min-width: 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.output-title {
  font-size: 17px;
  line-height: 1.45;
  margin-bottom: 8px;
}

.output-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 12px;
}

.output-meta {
  margin: 0;
}

.output-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin: 28px 0 0;
}

/* --------------------------------------------------------------------------
   pages · 交付标准
   -------------------------------------------------------------------------- */
.deliverables {
  padding-top: 8px;
}

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

.deliverable-item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.deliverable-no {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--brand);
  line-height: 1.3;
}

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

.deliverable-body h3 {
  font-size: 18px;
  line-height: 1.45;
  margin-bottom: 6px;
}

.deliverable-body p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0;
}

.check-groups {
  padding-top: 8px;
}

.check-group {
  padding: 22px 0;
  border-top: 1px solid var(--line);
}

.check-group:last-child {
  border-bottom: 1px solid var(--line);
}

.check-group-head {
  margin-bottom: 14px;
}

.check-group-head h3 {
  font-size: 19px;
  line-height: 1.4;
  margin-bottom: 4px;
}

.check-group-head p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin: 0;
}

.check-group .check-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.check-group .check-list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-width: 0;
}

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

.check-group .check-method {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink-soft);
}

.check-group .check-standard {
  font-size: 13px;
  line-height: 1.6;
  color: var(--brand);
}

.delivery-photo {
  padding-top: 8px;
}

.confirmation {
  padding-top: 8px;
}

.confirmation-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.confirmation-col {
  min-width: 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.confirmation-col h3 {
  font-size: 17px;
  line-height: 1.45;
  margin-bottom: 12px;
}

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

.confirmation-col .node-item {
  display: flex;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  padding-left: 0;
}

.confirmation-col .node-item::before {
  content: "·";
  color: var(--brand);
  font-weight: 700;
}

.node-name {
  font-weight: 600;
  color: var(--ink);
}

.related {
  padding-top: 8px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.related-item {
  min-width: 0;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.related-title {
  font-size: 17px;
  line-height: 1.45;
  margin-bottom: 6px;
}

.related-title a {
  color: var(--ink);
}

.related-title a:hover {
  color: var(--brand);
}

.related-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0;
}

/* --------------------------------------------------------------------------
   pages · 职责说明
   -------------------------------------------------------------------------- */
.positioning {
  padding-top: 8px;
}

.prose p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  margin: 0 0 12px;
}

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

.duties-photo {
  margin: 24px 0 32px;
}

.duties-photo img {
  aspect-ratio: 16 / 9;
}

.work-areas {
  padding-top: 0;
}

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

.area-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.area-name {
  font-size: 18px;
  line-height: 1.45;
  margin-bottom: 6px;
}

.area-object {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  margin: 0 0 4px;
}

.area-method {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 6px;
}

.area-link {
  margin: 0;
  font-size: 14px;
}

.roles {
  padding-top: 32px;
}

.role-list .role-item {
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.role-list .role-item:last-child {
  border-bottom: 1px solid var(--line);
}

.role-list .role-name {
  font-size: 17px;
  line-height: 1.45;
  margin-bottom: 6px;
}

.role-duty {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  margin: 0 0 4px;
}

.role-output {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0;
}

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

.principle-item {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

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

.principle-item dt {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 2px;
}

.principle-item dd {
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   pages · 合作路径
   -------------------------------------------------------------------------- */
.preparation {
  padding: 8px 0 40px;
}

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

.prep-item {
  min-width: 0;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.prep-title {
  font-size: 16px;
  line-height: 1.45;
  margin-bottom: 6px;
}

.prep-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0;
}

.cooperation-photo {
  padding: 0 0 40px;
}

.cooperation-photo .media-figure img {
  aspect-ratio: 21 / 9;
}

.path-nodes {
  padding: 8px 0 40px;
}

.path-nodes .node-list {
  border-top: 1px solid var(--line);
  gap: 0;
}

.path-nodes .node-item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 20px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}

.path-nodes .node-index {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 600;
  color: var(--brand);
  line-height: 1.4;
}

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

.node-title {
  font-size: 18px;
  line-height: 1.45;
  margin-bottom: 6px;
}

.node-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 8px;
}

.node-link {
  margin: 0;
  font-size: 14px;
}

.no-form-entry {
  padding: 8px 0 40px;
}

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

.entry-item {
  min-width: 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.entry-title {
  font-size: 17px;
  line-height: 1.45;
  margin-bottom: 8px;
}

.entry-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 12px;
}

.entry-link {
  margin: 0;
}

/* --------------------------------------------------------------------------
   pages · 常见问题
   -------------------------------------------------------------------------- */
.page-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0;
  padding: 0;
}

.page-jump .text-link {
  font-size: 14px;
}

.sidebar-left .page-aside {
  position: sticky;
  top: 88px;
  align-self: start;
}

.category-index {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.category-index li a,
.category-link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 6px 0;
  color: var(--ink);
  font-size: 15px;
  border-bottom: 1px solid var(--line);
}

.category-index li:last-child a {
  border-bottom: 0;
}

.category-index li a:hover,
.category-link:hover {
  color: var(--brand);
}

.category-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--brand);
  background: rgba(216, 240, 106, .4);
  padding: 2px 7px;
  border-radius: 3px;
  flex: 0 0 auto;
}

.category-count {
  margin-left: auto;
  font-size: 12px;
  color: var(--ink-soft);
}

.aside-figure {
  margin-top: 20px;
}

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

.qa-group {
  padding: 8px 0 32px;
}

.qa-group-head {
  margin-bottom: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.qa-group:first-of-type .qa-group-head {
  border-top: 0;
  padding-top: 0;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink);
  background: var(--accent);
  padding: 2px 8px;
  border-radius: 3px;
  margin-bottom: 8px;
}

.qa-group-head h2 {
  font-size: 22px;
  line-height: 1.35;
  margin-bottom: 4px;
}

.qa-group-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0;
}

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

.qa-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0 18px;
}

.qa-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: 14px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.qa-question::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--brand);
  line-height: 1;
}

details[open] > .qa-question::after {
  content: "−";
}

.qa-answer {
  padding: 12px 0 16px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.75;
  border-top: 1px solid var(--line);
}

.next-entries {
  padding: 8px 0 48px;
}

.next-title {
  font-size: 20px;
  line-height: 1.4;
  margin-bottom: 14px;
}

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

.next-item {
  min-width: 0;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.next-item a {
  display: inline-block;
  margin-top: 6px;
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */
.error-main {
  padding: 56px 0 72px;
}

.error-inner {
  max-width: 720px;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 48px;
  font-weight: 700;
  color: var(--brand);
  line-height: 1;
  margin: 0 0 12px;
}

.error-inner h1 {
  font-size: 30px;
  line-height: 1.3;
  margin-bottom: 12px;
}

.error-lead {
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin: 0 0 24px;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.error-guide {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.error-guide h2 {
  font-size: 18px;
  line-height: 1.45;
  margin-bottom: 12px;
}

.error-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 16px;
}

.error-list li a {
  display: flex;
  align-items: center;
  min-height: 44px;
  font-size: 15px;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.error-list li a:hover {
  color: var(--brand);
}

.error-note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* --------------------------------------------------------------------------
   responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .nav-link {
    padding: 0 9px;
    font-size: 14px;
  }

  .header-inner {
    gap: 14px;
  }

  .hero-grid {
    gap: 32px;
  }

  .hero-copy h1 {
    font-size: 40px;
  }

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

  .page-layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 32px;
  }

  .sidebar-left .page-layout,
  .page-layout.sidebar-left {
    grid-template-columns: 280px minmax(0, 1fr);
  }

  .delivery-grid {
    gap: 32px;
  }

  .duties-grid {
    gap: 32px;
  }
}

@media (max-width: 900px) {
  .main-nav {
    display: none;
  }

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

  .header-actions {
    margin-left: auto;
  }

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

  .hero-copy h1 {
    font-size: 36px;
  }

  .hero-visual {
    order: 2;
  }

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

  .delivery-figure {
    order: 1;
  }

  .delivery-body {
    order: 2;
  }

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

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

  .sidebar-left .page-layout,
  .page-layout.sidebar-left {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-layout .page-aside,
  .page-layout .layout-aside {
    order: 2;
  }

  .page-layout .page-content,
  .page-layout .layout-main {
    order: 1;
  }

  .sidebar-left .page-aside {
    position: static;
    order: 0;
  }

  .service-intro {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

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

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

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

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

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

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

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

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

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

@media (max-width: 720px) {
  :root {
    --gutter: 18px;
  }

  body {
    font-size: 16px;
    padding-bottom: 72px;
  }

  .header-inner {
    height: 56px;
    gap: 10px;
  }

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

  .brand-sub {
    display: none;
  }

  .action-link {
    height: 40px;
    padding: 0 10px;
    font-size: 13px;
  }

  .action-link--strong {
    padding: 0 12px;
  }

  .menu-toggle {
    width: 44px;
    height: 44px;
  }

  .section {
    padding: 40px 0;
  }

  .section-head h2,
  .section-title,
  .duties-intro h2,
  .service-groups > h2,
  .boundary > h2 {
    font-size: 21px;
  }

  .page-title {
    font-size: 28px;
    line-height: 1.28;
  }

  .page-header {
    padding: 4px 0 14px;
  }

  .breadcrumb {
    padding: 14px 0 4px;
    font-size: 12px;
  }

  .hero {
    padding: 28px 0 36px;
  }

  .hero-copy h1 {
    font-size: 32px;
    line-height: 1.25;
    margin-bottom: 12px;
  }

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

  .hero-sub {
    font-size: 14px;
    margin-bottom: 20px;
  }

  .hero-actions {
    gap: 10px;
    margin-bottom: 20px;
  }

  .hero-actions .btn {
    flex: 1 1 auto;
    min-width: 0;
  }

  .hero-steps {
    grid-template-columns: minmax(0, 1fr);
    gap: 10px;
  }

  .hero-steps li {
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
  }

  .hero-steps .step-no {
    flex: 0 0 auto;
  }

  .service-row {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 12px;
    padding: 18px 0;
  }

  .service-row .row-link {
    grid-column: 2;
    justify-self: start;
    margin-top: 4px;
  }

  .triage-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .method-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

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

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

  .role-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .rule-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 16px 0;
  }

  .cooperation-entry {
    padding: 24px 0;
  }

  .cooperation-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
  }

  .cooperation-links {
    gap: 16px;
  }

  .stage-item {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
    padding: 20px 0;
  }

  .stage-item .stage-index {
    font-size: 18px;
  }

  .deliverable-item {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
    padding: 16px 0;
  }

  .deliverable-no {
    font-size: 16px;
  }

  .boundary-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding: 14px 0;
  }

  .path-nodes .node-item {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 12px;
    padding: 18px 0;
  }

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

  .footer-groups {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
    padding: 20px 0;
  }

  .footer-top {
    padding-bottom: 20px;
    gap: 16px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding-top: 16px;
  }

  .site-footer {
    padding: 32px 0 20px;
  }

  .error-main {
    padding: 36px 0 48px;
  }

  .error-code {
    font-size: 38px;
  }

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

  .error-actions {
    gap: 10px;
  }

  .error-actions .btn {
    flex: 1 1 auto;
    min-width: 0;
  }

  .mobile-taskbar {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 60;
    background: var(--surface);
    border-top: 1px solid var(--line);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .mobile-taskbar .taskbar-list {
    display: flex;
    align-items: stretch;
  }

  .mobile-taskbar .taskbar-list li {
    flex: 1 1 0;
    min-width: 0;
  }

  .mobile-taskbar .taskbar-list li + li {
    border-left: 1px solid var(--line);
  }

  .mobile-taskbar .taskbar-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 56px;
    padding: 0 6px;
    font-size: 14px;
    color: var(--ink);
    text-align: center;
    line-height: 1.3;
  }

  .mobile-taskbar .taskbar-link:hover,
  .mobile-taskbar .taskbar-link:active {
    color: var(--brand);
    background: rgba(14, 95, 77, .05);
  }

  /* 首页任务条为直接链接 */
  .mobile-taskbar > .taskbar-link {
    flex: 1 1 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 56px;
    padding: 0 6px;
    font-size: 14px;
    color: var(--ink);
    text-align: center;
  }

  .mobile-taskbar > .taskbar-link + .taskbar-link {
    border-left: 1px solid var(--line);
  }

  .mobile-taskbar > .taskbar-link:hover {
    color: var(--brand);
  }
}

@media (max-width: 390px) {
  :root {
    --gutter: 16px;
  }

  .hero-copy h1 {
    font-size: 28px;
  }

  .action-link {
    font-size: 12px;
    padding: 0 8px;
  }

  .action-link--strong {
    padding: 0 10px;
  }

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

  .hero-actions .btn {
    padding: 0 14px;
    font-size: 14px;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !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;
  }
}