/* ==========================================================================
   飘花网 · 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base · 变量与全局基础
   -------------------------------------------------------------------------- */
:root {
  --bg: #F6F8F9;
  --surface: #FFFFFF;
  --text: #253038;
  --text-soft: #5C6B73;
  --accent: #1F8A70;
  --accent-soft: #E6F3EF;
  --line: #DDE4E7;
  --warn: #B4632A;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow: 0 1px 2px rgba(37, 48, 56, 0.05);
  --shell: 1160px;
  --content: 760px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC",
    sans-serif;
}

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

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

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

h1,
h2,
h3,
h4 {
  margin: 0 0 12px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text);
}

h1 {
  font-size: 34px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  margin: 0 0 12px;
}

ul,
ol {
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
}

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

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

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

figure {
  margin: 0;
}

figcaption {
  margin-top: 8px;
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.6;
}

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

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

caption {
  text-align: left;
}

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

/* --------------------------------------------------------------------------
   layout · 全站骨架：site-body / site-header / site-nav / site-main / footer
   -------------------------------------------------------------------------- */
.site-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--surface);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
  padding: 10px 0;
}

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

.brand-mark {
  font-size: 20px;
  color: var(--accent);
}

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

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

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  flex-wrap: wrap;
}

.nav-item a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  font-size: 15px;
  color: var(--text);
  border-radius: var(--radius-sm);
  text-decoration: none;
}

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

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

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background-color: var(--surface);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text);
}

.site-main {
  flex: 1 0 auto;
  width: 100%;
}

.home-main,
.inner-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

.inner-main {
  padding-top: 20px;
  padding-bottom: 56px;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 32px;
  align-items: start;
}

.sidebar-left .page-layout {
  grid-template-columns: 240px minmax(0, 1fr);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-soft);
  margin-bottom: 16px;
}

.breadcrumb a {
  color: var(--text-soft);
  text-decoration: none;
}

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

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

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

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

.page-title {
  font-size: 34px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 10px;
}

.page-description {
  max-width: var(--content);
  margin: 0;
  font-size: 16px;
  color: var(--text-soft);
}

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

/* --------------------------------------------------------------------------
   components · 通用组件
   -------------------------------------------------------------------------- */

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

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

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: #196F5A;
  border-color: #196F5A;
}

.btn-ghost {
  background-color: var(--surface);
  color: var(--accent);
  border-color: var(--accent);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  background-color: var(--accent-soft);
}

.btn-plain {
  background-color: var(--surface);
  color: var(--text);
  border-color: var(--line);
}

.btn-plain:hover,
.btn-plain:focus-visible {
  background-color: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

.text-link {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.text-link::after {
  content: " →";
}

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

/* 区块标题 */
.section-head {
  margin-bottom: 20px;
}

.section-lead {
  max-width: var(--content);
  color: var(--text-soft);
  margin: 0;
}

.section-lead a {
  color: var(--accent);
}

.section-intro,
.section-text {
  max-width: var(--content);
  color: var(--text-soft);
  margin: 0 0 16px;
}

.section-title {
  font-size: 24px;
  margin: 0 0 10px;
}

.section-foot {
  margin: 16px 0 0;
}

.section-more {
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.section-more a {
  color: var(--accent);
  font-weight: 600;
}

.section-note {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--text-soft);
}

.section-note a {
  color: var(--accent);
}

/* 侧栏分类树 */
.sidebar,
.page-aside,
.layout-aside {
  min-width: 0;
}

.sidebar-panel,
.aside-panel {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}

.sidebar-title,
.aside-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.sidebar-list,
.aside-list,
.aside-tree {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-item a,
.aside-item a,
.aside-tree-item a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 6px 10px;
  font-size: 15px;
  color: var(--text);
  border-radius: var(--radius-sm);
  text-decoration: none;
  line-height: 1.5;
}

.sidebar-item a:hover,
.aside-item a:hover,
.aside-tree-item a:hover,
.sidebar-item a:focus-visible,
.aside-item a:focus-visible,
.aside-tree-item a:focus-visible {
  background-color: var(--accent-soft);
  color: var(--accent);
  text-decoration: none;
}

.sidebar-item.is-current a,
.aside-item.is-current a,
.aside-tree-item.is-current a,
.sidebar-item a.is-current,
.aside-item a.is-current,
.aside-tree-item a.is-current {
  background-color: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

.sidebar-note,
.aside-note {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.7;
}

.sidebar-note a,
.aside-note a {
  color: var(--accent);
}

.aside-toggle {
  display: none;
  width: 100%;
  min-height: 44px;
  padding: 0 14px;
  text-align: left;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
}

.aside-toggle::after {
  content: "＋";
  float: right;
  color: var(--accent);
}

.aside-toggle[aria-expanded="true"]::after {
  content: "－";
}

.aside-nav {
  min-width: 0;
}

/* 边界提示条 */
.boundary-note {
  background-color: #FDF6F0;
  border: 1px solid #EBD9C8;
  border-left: 3px solid var(--warn);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin: 0 0 20px;
}

.boundary-note-title {
  font-weight: 600;
  color: var(--warn);
  margin: 0 0 8px;
}

.boundary-note-list {
  margin: 0;
  padding-left: 18px;
  list-style: disc;
  color: var(--text-soft);
}

.boundary-note-list li {
  margin-bottom: 6px;
}

.boundary-note-list li:last-child {
  margin-bottom: 0;
}

/* 表格 */
.table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-color: var(--surface);
  margin: 0 0 16px;
}

.data-table {
  min-width: 560px;
  font-size: 15px;
}

.table-caption {
  caption-side: top;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text-soft);
  border-bottom: 1px solid var(--line);
}

.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  line-height: 1.7;
}

.data-table thead th {
  background-color: #F2F5F6;
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
}

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

/* 图片容器 */
.section-media,
.section-figure,
.content-figure,
.timeline-figure,
.hero-figure {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: var(--shadow);
}

.section-media img,
.section-figure img,
.content-figure img,
.timeline-figure img,
.hero-figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background-color: #EDF1F3;
}

.media-caption {
  margin-top: 10px;
}

/* 要点列表 */
.check-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 0 0 16px;
}

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

.check-name,
.check-title {
  font-size: 17px;
  margin: 0 0 8px;
}

.check-desc,
.check-text {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
}

/* 相关推荐 */
.related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 0;
}

.related-item a {
  display: block;
  min-height: 44px;
  padding: 12px 14px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 15px;
  text-decoration: none;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.related-item a:hover,
.related-item a:focus-visible {
  border-color: var(--accent);
  background-color: var(--accent-soft);
  color: var(--accent);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */
.home-main {
  padding-top: 28px;
  padding-bottom: 56px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 420px) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

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

.hero-eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  padding: 3px 10px;
  background-color: var(--accent-soft);
  color: var(--accent);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
}

.hero-title {
  font-size: 34px;
  margin: 0 0 14px;
}

.hero-lead {
  color: var(--text-soft);
  margin: 0 0 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

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

/* 服务方向总览索引 */
.capability-index {
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

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

.index-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 110px 110px;
  gap: 16px;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.index-row-main {
  min-width: 0;
}

.index-row-name {
  font-size: 18px;
  margin: 0 0 4px;
}

.index-row-desc {
  margin: 0;
  font-size: 15px;
  color: var(--text-soft);
}

.index-row-count {
  margin: 0;
  font-size: 14px;
  color: var(--text-soft);
  white-space: nowrap;
}

.count-num {
  font-weight: 600;
  color: var(--accent);
  font-size: 17px;
  margin-right: 2px;
}

.index-row-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--accent);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.index-row-link:hover,
.index-row-link:focus-visible {
  background-color: var(--accent-soft);
  border-color: var(--accent);
  text-decoration: none;
}

/* 交付阶段时间线（首页） */
.delivery-timeline {
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.timeline-body {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.timeline-figure {
  position: sticky;
  top: 88px;
}

.timeline-list {
  margin: 0;
  counter-reset: timeline;
}

.timeline-item {
  position: relative;
  padding: 0 0 24px 34px;
  border-left: 2px solid var(--line);
  margin-left: 8px;
}

.timeline-item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.timeline-item::before {
  counter-increment: timeline;
  content: counter(timeline);
  position: absolute;
  left: -15px;
  top: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--accent);
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-name {
  font-size: 18px;
  margin: 4px 0 8px;
}

.timeline-work,
.timeline-output,
.timeline-check {
  margin: 0 0 6px;
  font-size: 15px;
  color: var(--text-soft);
}

.timeline-output strong,
.timeline-check strong {
  color: var(--text);
}

/* 适用场景摘要（首页） */
.scenarios {
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.scenario-blocks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

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

.scenario-name {
  font-size: 18px;
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.scenario-problem,
.scenario-fit,
.scenario-limit {
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--text-soft);
}

.scenario-limit {
  margin-bottom: 0;
  color: var(--warn);
}

/* 常见问题速览（首页） */
.faq-preview {
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
}

.faq-preview-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
  margin: 0;
}

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

.faq-preview-q {
  font-size: 16px;
  margin: 0 0 8px;
  color: var(--text);
}

.faq-preview-a {
  margin: 0;
  font-size: 15px;
  color: var(--text-soft);
}

/* 合作对接准备说明（首页） */
.contact-prep {
  padding-bottom: 8px;
}

.prep-list {
  counter-reset: prep;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 0;
}

.prep-item {
  position: relative;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px 16px 52px;
  box-shadow: var(--shadow);
}

.prep-item::before {
  counter-increment: prep;
  content: counter(prep);
  position: absolute;
  left: 16px;
  top: 16px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.prep-name {
  font-size: 16px;
  margin: 0 0 6px;
}

.prep-use {
  margin: 0;
  font-size: 15px;
  color: var(--text-soft);
}

/* --------------------------------------------------------------------------
   pages · 内页通用区块
   -------------------------------------------------------------------------- */
.content-section {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.content-section:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
}

.related-section {
  padding-bottom: 0;
}

/* 服务能力页 */
.capability-overview {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.capability-overview .section-media {
  max-width: var(--content);
  margin: 0 0 20px;
}

.capability-index {
  border-top: 1px solid var(--line);
  margin: 0;
}

.capability-index-row {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 2fr) 90px 96px;
  gap: 16px;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.capability-index-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

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

.capability-index-count {
  font-size: 14px;
  color: var(--text-soft);
  white-space: nowrap;
}

.capability-index-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.capability-index-link:hover,
.capability-index-link:focus-visible {
  background-color: var(--accent-soft);
  border-color: var(--accent);
  text-decoration: none;
}

.capability-detail {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.capability-card {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.capability-card:last-child {
  margin-bottom: 0;
}

.capability-card-title {
  font-size: 18px;
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.capability-card-fields {
  margin: 0;
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 8px 16px;
  align-items: baseline;
}

.capability-card-fields dt {
  font-weight: 600;
  color: var(--text);
  font-size: 15px;
}

.capability-card-fields dd {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
}

.capability-scope,
.capability-audience {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.capability-audience {
  border-bottom: none;
  margin-bottom: 0;
}

/* 交付体系页 */
.timeline-card {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
}

.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--text-soft);
}

.timeline-desc {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
}

.content-figure {
  max-width: var(--content);
  margin: 20px 0 0;
}

/* 适用场景页 */
.section {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.section:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
}

.section-scene-overview .section-figure {
  max-width: var(--content);
  margin: 0 0 16px;
}

.scene-block {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.scene-block:last-child {
  margin-bottom: 0;
}

.scene-title {
  font-size: 18px;
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.scene-issue,
.scene-capability,
.scene-limit {
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--text-soft);
}

.scene-limit {
  margin-bottom: 0;
}

.scene-label {
  display: inline-block;
  min-width: 96px;
  font-weight: 600;
  color: var(--text);
}

.scene-limit .scene-label {
  color: var(--warn);
}

.section-scene-mapping .table-scroll {
  margin-bottom: 0;
}

/* 常见问题页 */
.faq-section {
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.faq-section .section-media {
  max-width: var(--content);
  margin: 0 0 20px;
}

.faq-item {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 10px;
  box-shadow: var(--shadow);
}

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

.faq-question {
  cursor: pointer;
  padding: 14px 44px 14px 18px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  position: relative;
  list-style: none;
  min-height: 44px;
}

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

.faq-question::after {
  content: "＋";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent);
  font-weight: 600;
}

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

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

.faq-answer {
  padding: 0 18px 16px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.faq-answer p {
  margin: 0;
  color: var(--text-soft);
  font-size: 15px;
}

.faq-next {
  padding-top: 4px;
}

.next-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 16px 0 0;
}

.next-links a {
  display: block;
  min-height: 44px;
  padding: 12px 14px;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 15px;
  text-decoration: none;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

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

/* 合作对接页 */
.contact-prep .section-media {
  max-width: var(--content);
  margin: 0 0 20px;
}

.contact-prep .prep-list {
  counter-reset: prep;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.contact-prep .prep-item {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px 14px 48px;
  position: relative;
  box-shadow: var(--shadow);
}

.contact-prep .prep-item::before {
  counter-increment: prep;
  content: counter(prep);
  position: absolute;
  left: 14px;
  top: 14px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-prep .prep-name {
  display: block;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-prep .prep-desc {
  display: block;
  font-size: 15px;
  color: var(--text-soft);
}

.confirm-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin: 0;
}

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

.confirm-question {
  font-size: 16px;
  margin: 0 0 8px;
}

.confirm-purpose {
  margin: 0;
  font-size: 15px;
  color: var(--text-soft);
}

.next-list {
  counter-reset: next;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin: 0;
}

.next-item {
  position: relative;
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 16px 16px 48px;
  box-shadow: var(--shadow);
}

.next-item::before {
  counter-increment: next;
  content: counter(next);
  position: absolute;
  left: 14px;
  top: 16px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.next-step-name {
  display: block;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.next-desc {
  display: block;
  font-size: 15px;
  color: var(--text-soft);
}

/* 404 */
.error-main {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 64px 24px 80px;
}

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

.error-code {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
}

.error-title {
  font-size: 34px;
  margin: 0 0 12px;
}

.error-desc {
  margin: 0 0 24px;
  color: var(--text-soft);
}

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

/* --------------------------------------------------------------------------
   layout · 页脚
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #EEF2F3;
  border-top: 1px solid var(--line);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 36px 24px 28px;
}

.footer-index {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

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

.footer-group-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 10px;
}

.footer-links {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  color: var(--text-soft);
  text-decoration: none;
}

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

.footer-brand {
  padding-top: 20px;
}

.footer-brand-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 6px;
}

.footer-brand-desc {
  max-width: var(--content);
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--text-soft);
}

.footer-boundary {
  max-width: var(--content);
  margin: 0 0 12px;
  font-size: 13px;
  color: var(--warn);
}

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

/* --------------------------------------------------------------------------
   responsive · 900px 断点
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  h1,
  .page-title,
  .hero-title,
  .error-title {
    font-size: 26px;
  }

  h2,
  .section-title {
    font-size: 20px;
  }

  h3 {
    font-size: 16px;
  }

  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }

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

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

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 0 12px;
    border-top: 1px solid var(--line);
  }

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

  .nav-item a {
    min-height: 48px;
    padding: 0 8px;
    font-size: 16px;
  }

  .home-main,
  .inner-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  .inner-main {
    padding-top: 16px;
    padding-bottom: 40px;
  }

  .page-layout,
  .sidebar-left .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .page-layout .page-sidebar,
  .page-layout .layout-aside,
  .page-layout .page-aside,
  .page-layout .sidebar {
    order: -1;
  }

  .aside-toggle {
    display: block;
  }

  .aside-panel {
    margin-top: 8px;
  }

  .page-aside .aside-panel:not(#aside-panel-faq):not(#contact-index-panel) {
    margin-top: 0;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding-bottom: 28px;
    margin-bottom: 32px;
  }

  .hero-figure {
    order: 2;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .index-row {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px 16px;
  }

  .index-row-count {
    grid-row: 1;
    grid-column: 2;
    text-align: right;
  }

  .index-row-link {
    grid-column: 1 / -1;
    justify-self: start;
  }

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

  .timeline-figure {
    position: static;
  }

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

  .capability-index-count {
    grid-row: 1;
    grid-column: 2;
    text-align: right;
  }

  .capability-index-link {
    grid-column: 1 / -1;
    justify-self: start;
  }

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

  .capability-card-fields dt {
    margin-top: 8px;
  }

  .scene-label {
    min-width: 88px;
  }

  .footer-index {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px 20px;
  }

  .footer-links {
    gap: 0;
  }

  .footer-links a {
    min-height: 44px;
  }

  .error-main {
    padding: 40px 16px 56px;
  }

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

/* --------------------------------------------------------------------------
   responsive · 600px 断点
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
  body {
    font-size: 15px;
  }

  .brand-note {
    display: none;
  }

  .hero-eyebrow {
    font-size: 12px;
  }

  .section-head {
    margin-bottom: 16px;
  }

  .scenario-blocks,
  .faq-preview-list,
  .prep-list,
  .contact-prep .prep-list,
  .confirm-list,
  .next-list,
  .check-list,
  .related-list,
  .next-links {
    grid-template-columns: minmax(0, 1fr);
  }

  .capability-card,
  .scene-block,
  .scenario-block,
  .faq-preview-item,
  .check-item,
  .confirm-item {
    padding: 14px;
  }

  .contact-prep .prep-item,
  .next-item,
  .prep-item {
    padding: 14px 14px 14px 46px;
  }

  .prep-item::before {
    left: 14px;
    top: 14px;
  }

  .timeline-item {
    padding-left: 28px;
  }

  .timeline-item::before {
    left: -14px;
    width: 26px;
    height: 26px;
    font-size: 13px;
  }

  .error-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .error-actions .btn {
    width: 100%;
  }

  .footer-inner {
    padding: 28px 16px 24px;
  }
}