/* ==========================================================================
   飘花 dabinggou.cn — 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base — 变量、重置、排版基调
   -------------------------------------------------------------------------- */

:root {
  --bg-page: #f7f9fb;
  --bg-card: #ffffff;
  --bg-soft: #eef3f8;
  --text-main: #1f2933;
  --text-sub: #52606d;
  --line: #d9e2ec;
  --line-strong: #bcccdc;
  --blue: #1a6fd4;
  --blue-deep: #14589f;
  --green: #1f9d6b;
  --green-soft: #e3f5ec;
  --blue-soft: #e6f0fb;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow-sm: 0 1px 2px rgba(31, 41, 51, 0.06);
  --shadow-md: 0 4px 14px rgba(31, 41, 51, 0.08);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono",
    "Courier New", monospace;
  --wrap: 1080px;
  --aside-w: 240px;
  --gap-col: 40px;
}

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

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

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

p {
  margin: 0;
}

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

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

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

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

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

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

/* --------------------------------------------------------------------------
   layout — 骨架：页头 / 主导航 / 主内容 / 页脚 / 页面栅格
   -------------------------------------------------------------------------- */

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

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 8px 14px;
  background: var(--blue);
  color: #fff;
  border-radius: 0 0 var(--radius-sm) 0;
  font-size: 14px;
  z-index: 60;
}

.skip-link:focus {
  left: 0;
  color: #fff;
  text-decoration: none;
}

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

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

.site-footer {
  background: var(--bg-card);
  border-top: 1px solid var(--line);
  margin-top: 56px;
}

.footer-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 40px 24px 28px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 32px;
}

/* 内页：主内容在前，aside 在后 */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--aside-w);
  gap: var(--gap-col);
  align-items: start;
}

/* 侧栏在前的变体（祖先节点带 .sidebar-left 时） */
.sidebar-left .page-layout {
  grid-template-columns: var(--aside-w) minmax(0, 1fr);
}

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

.sidebar-left .page-layout > .page-content {
  order: 2;
}

.page-content {
  min-width: 0;
}

/* --------------------------------------------------------------------------
   components — 品牌 / 导航 / 按钮 / 链接 / 面包屑 / 页脚 / 卡片 / 表格 / FAQ
   -------------------------------------------------------------------------- */

/* 品牌标识 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-main);
  font-weight: 600;
  font-size: 18px;
  flex: 0 0 auto;
}

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

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: var(--radius-sm);
  background: var(--blue);
  position: relative;
  flex: 0 0 auto;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 7px 7px auto 7px;
  height: 3px;
  background: #fff;
  border-radius: 2px;
  box-shadow: 0 6px 0 #fff;
}

.brand-name {
  white-space: nowrap;
}

/* 主导航 */
.site-nav {
  margin-left: auto;
}

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

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  color: var(--text-sub);
  font-size: 15px;
  border-bottom: 2px solid transparent;
}

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

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

/* 汉堡按钮（桌面隐藏） */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.nav-toggle-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-main);
  border-radius: 1px;
}

/* 按钮 */
.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: 600;
  border: 1px solid transparent;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--blue-deep);
  color: #fff;
  text-decoration: none;
}

.btn-ghost {
  background: var(--bg-card);
  color: var(--blue);
  border-color: var(--line-strong);
}

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

/* 行内链接（列表行右侧入口） */
.row-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.row-link::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: 13px;
}

.row-link:hover,
.row-link:focus-visible {
  color: var(--blue-deep);
  text-decoration: none;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-sub);
  margin-bottom: 14px;
}

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

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

.breadcrumb-sep {
  color: var(--line-strong);
  font-family: var(--font-mono);
}

.breadcrumb-current {
  color: var(--text-main);
  font-weight: 600;
}

/* 页面标题区 */
.page-header {
  padding-bottom: 20px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  font-size: 32px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 12px;
}

.page-description {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 760px;
}

/* 通用区块 */
.content-section,
.faq-section,
.section {
  margin-bottom: 48px;
}

.section-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
}

.section-intro,
.section-desc {
  color: var(--text-sub);
  font-size: 15px;
  margin-bottom: 20px;
  max-width: 760px;
}

.section-head {
  margin-bottom: 20px;
}

.section-more {
  margin-top: 18px;
  font-size: 14px;
}

.section-foot {
  margin-top: 18px;
  font-size: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* 图片容器 */
.section-media,
.section-figure,
.capability-figure,
.faq-figure,
.hero-media {
  margin: 0 0 20px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.section-media img,
.section-figure img,
.capability-figure img,
.faq-figure img,
.hero-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--bg-soft);
}

.section-media img,
.section-figure img {
  aspect-ratio: 16 / 7;
}

.capability-figure img,
.faq-figure img {
  aspect-ratio: 16 / 6;
}

figcaption,
.figure-caption,
.media-caption,
.faq-figure-caption {
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-sub);
  border-top: 1px solid var(--line);
  background: var(--bg-card);
}

/* 侧栏索引 */
.page-aside {
  position: sticky;
  top: 84px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 16px;
}

.aside-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
  text-transform: none;
  letter-spacing: 0;
  margin-bottom: 12px;
}

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

.aside-link {
  display: block;
  padding: 8px 10px;
  font-size: 14px;
  color: var(--text-sub);
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.aside-link:hover,
.aside-link:focus-visible {
  background: var(--bg-soft);
  color: var(--blue);
  border-left-color: var(--blue);
  text-decoration: none;
}

.aside-link.is-active {
  background: var(--blue-soft);
  color: var(--blue-deep);
  border-left-color: var(--green);
  font-weight: 600;
}

.aside-note {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--text-sub);
}

/* 数据表格 */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-card);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table-caption {
  caption-side: top;
  text-align: left;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-sub);
  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;
}

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

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

/* 排除项列表 */
.exclude-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 12px;
}

.exclude-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--text-sub);
}

.exclude-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--line-strong);
  font-family: var(--font-mono);
}

/* 原生 details FAQ */
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 10px;
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 10px 16px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

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

.faq-question::before {
  content: "+";
  font-family: var(--font-mono);
  color: var(--green);
  font-size: 16px;
  flex: 0 0 auto;
}

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

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

.faq-answer {
  padding: 0 16px 16px 42px;
  color: var(--text-sub);
  font-size: 15px;
}

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

/* 页脚 */
.footer-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-main);
}

.footer-text {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 10px;
}

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

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

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

.footer-copy {
  font-size: 13px;
  color: var(--text-sub);
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

/* --------------------------------------------------------------------------
   pages — 首页
   -------------------------------------------------------------------------- */

.home-main {
  padding-top: 28px;
  padding-bottom: 24px;
}

/* 首屏全宽列表 */
.hero-section {
  margin-bottom: 48px;
}

.hero-lead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
  gap: 32px;
  align-items: start;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green);
  margin-bottom: 10px;
}

.hero-title {
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 14px;
}

.hero-text {
  font-size: 16px;
  color: var(--text-sub);
  margin-bottom: 12px;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.hero-media {
  margin: 0;
}

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

.hero-index-list {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-card);
  overflow: hidden;
}

.hero-index-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
}

.hero-index-row:last-child {
  border-bottom: none;
}

.hero-index-row:hover {
  background: var(--bg-soft);
}

.hero-index-tag {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  text-align: center;
}

.hero-index-desc {
  font-size: 14px;
  color: var(--text-sub);
}

/* 服务能力索引速览 */
.capability-section {
  margin-bottom: 48px;
}

.capability-table {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-card);
  overflow: hidden;
}

.capability-row {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr) 200px 84px;
  gap: 16px;
  align-items: center;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
}

.capability-row:last-child {
  border-bottom: none;
}

.capability-row:not(.capability-head):hover {
  background: var(--bg-soft);
}

.capability-head {
  background: var(--bg-soft);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sub);
}

.cell {
  min-width: 0;
  font-size: 14px;
}

.cell-name {
  font-weight: 600;
  color: var(--text-main);
}

.cell-scope,
.cell-fit {
  color: var(--text-sub);
}

.cell-link {
  justify-self: end;
}

/* 合作流程四阶段 */
.flow-section {
  margin-bottom: 48px;
}

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

.flow-item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--green);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.flow-num {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--green);
  line-height: 1.4;
}

.flow-name {
  font-size: 17px;
  margin-bottom: 6px;
}

.flow-desc {
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 8px;
}

.flow-prep {
  font-size: 14px;
  color: var(--text-sub);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: baseline;
}

.flow-prep .label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--blue);
  background: var(--blue-soft);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  flex: 0 0 auto;
}

/* 场景与问题摘要 */
.scenario-section {
  margin-bottom: 48px;
}

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

.scenario-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  min-width: 0;
}

.scenario-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-sm);
}

.scenario-name {
  font-size: 17px;
  margin-bottom: 10px;
}

.scenario-bg {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 10px;
}

.scenario-way {
  font-size: 14px;
  color: var(--text-main);
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

/* 常见问题速览 */
.faq-preview-section {
  margin-bottom: 48px;
}

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

.faq-group {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  min-width: 0;
}

.faq-group-title {
  font-size: 15px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

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

.faq-preview-list li {
  font-size: 14px;
}

/* --------------------------------------------------------------------------
   pages — 服务能力页
   -------------------------------------------------------------------------- */

.page-service-capability .content-section {
  scroll-margin-top: 84px;
}

.capability-block {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
  scroll-margin-top: 84px;
}

.capability-title {
  font-size: 17px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

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

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

.fit-col {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  min-width: 0;
}

.col-title {
  font-size: 15px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

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

.fit-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--text-sub);
}

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

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

.link-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  min-width: 0;
}

.link-card:hover,
.link-card:focus-visible {
  border-color: var(--blue);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}

.link-card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
}

.link-card-desc {
  font-size: 13px;
  color: var(--text-sub);
}

/* --------------------------------------------------------------------------
   pages — 场景与问题页
   -------------------------------------------------------------------------- */

.page-scenarios .content-section {
  scroll-margin-top: 84px;
}

.scene-index {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.scene-row {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
  scroll-margin-top: 84px;
}

.scene-row-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.scene-name {
  font-size: 17px;
}

.scene-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green);
  background: var(--green-soft);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
}

.scene-need,
.scene-fit {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 6px;
}

.scene-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
}

.scene-link::after {
  content: "→";
  font-family: var(--font-mono);
  font-size: 13px;
}

.scene-detail {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 18px;
  scroll-margin-top: 84px;
}

.scene-detail-title {
  font-size: 17px;
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.scene-detail-text {
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 12px;
}

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

.scene-points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--text-sub);
}

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

.scene-detail-note {
  font-size: 13px;
  color: var(--text-sub);
  background: var(--bg-soft);
  border-left: 3px solid var(--line-strong);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 10px 14px;
}

.condition-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.condition-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  min-width: 0;
}

.condition-name {
  font-size: 16px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.condition-col {
  margin-bottom: 12px;
}

.condition-col:last-child {
  margin-bottom: 0;
}

.condition-sub {
  font-size: 13px;
  font-weight: 600;
  color: var(--green);
  font-family: var(--font-mono);
  margin-bottom: 8px;
}

.condition-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.condition-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--text-sub);
}

.condition-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: var(--line-strong);
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   pages — 合作流程页
   -------------------------------------------------------------------------- */

.page-cooperation .section {
  scroll-margin-top: 84px;
}

.stage-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.stage-item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 18px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: var(--radius);
  padding: 20px;
}

.stage-no {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--blue);
  line-height: 1.4;
}

.stage-name {
  font-size: 17px;
  margin-bottom: 8px;
}

.stage-desc {
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 8px;
}

.stage-output {
  font-size: 14px;
  color: var(--text-sub);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: baseline;
}

.stage-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green);
  background: var(--green-soft);
  border-radius: var(--radius-sm);
  padding: 2px 6px;
  flex: 0 0 auto;
}

.duty-block {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 18px;
  scroll-margin-top: 84px;
}

.duty-name {
  font-size: 17px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

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

.duty-col {
  min-width: 0;
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.duty-col-ours {
  border-left: 3px solid var(--blue);
}

.duty-col-yours {
  border-left: 3px solid var(--green);
}

.duty-col-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 10px;
}

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

.duty-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--text-sub);
}

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

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

.blocker-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.blocker-name {
  font-size: 16px;
  margin-bottom: 6px;
}

.blocker-fix {
  font-size: 14px;
  color: var(--text-sub);
}

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

.related-item {
  min-width: 0;
}

.related-item a {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
}

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

/* --------------------------------------------------------------------------
   pages — 常见问题页
   -------------------------------------------------------------------------- */

.page-faq .faq-section {
  scroll-margin-top: 84px;
}

.faq-next {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 48px;
}

.faq-next-text {
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 18px;
}

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

.faq-next-item {
  min-width: 0;
}

.faq-next-item a {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 14px 18px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
}

.faq-next-item a:hover,
.faq-next-item a:focus-visible {
  border-color: var(--blue);
  color: var(--blue-deep);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   pages — 404
   -------------------------------------------------------------------------- */

.error-main {
  padding-top: 48px;
  padding-bottom: 64px;
}

.error-block {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 32px;
  margin-bottom: 32px;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--green);
  margin-bottom: 12px;
}

.error-title {
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 14px;
}

.error-text {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 640px;
  margin-bottom: 24px;
}

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

.error-nav-block {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
}

.error-nav-title {
  font-size: 18px;
  margin-bottom: 16px;
}

.error-nav-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.error-nav-list li {
  min-width: 0;
}

.error-nav-list a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 12px 16px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

.error-nav-list a:hover,
.error-nav-list a:focus-visible {
  border-color: var(--blue);
  color: var(--blue-deep);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   responsive — 1024 / 768 / 480
   -------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
  }

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

  .sidebar-left .page-layout > .page-aside {
    order: 0;
  }

  .sidebar-left .page-layout > .page-content {
    order: 1;
  }

  .page-aside {
    position: static;
    padding: 14px 12px;
  }

  .aside-list {
    flex-direction: row;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .aside-list li {
    flex: 0 0 auto;
  }

  .aside-link {
    border-left: none;
    border-bottom: 2px solid transparent;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    white-space: nowrap;
  }

  .aside-link:hover,
  .aside-link:focus-visible,
  .aside-link.is-active {
    border-left: none;
    border-bottom-color: var(--green);
  }

  .hero-lead {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
    gap: 24px;
    padding: 24px;
  }

  .capability-row {
    grid-template-columns: 150px minmax(0, 1fr) 160px 72px;
    gap: 12px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    flex: 1 0 100%;
    margin-left: 0;
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border-top: 1px solid var(--line);
    padding: 6px 0 10px;
  }

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

  .nav-link {
    min-height: 48px;
    padding: 0 4px;
    border-bottom: 1px solid var(--line);
    border-left: 3px solid transparent;
  }

  .nav-link:hover,
  .nav-link:focus-visible {
    border-bottom-color: var(--line);
  }

  .nav-link.is-current {
    border-bottom-color: var(--line);
    border-left-color: var(--green);
    padding-left: 10px;
  }

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

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

  .hero-lead {
    grid-template-columns: minmax(0, 1fr);
    padding: 20px;
  }

  .hero-media {
    order: -1;
  }

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

  .hero-index-row {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px 12px;
    padding: 14px 16px;
  }

  .hero-index-tag {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .capability-table {
    border: none;
    background: transparent;
  }

  .capability-head {
    display: none;
  }

  .capability-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--bg-card);
    padding: 16px;
    margin-bottom: 12px;
  }

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

  .cell-link {
    justify-self: start;
    margin-top: 4px;
  }

  .scenario-grid,
  .faq-preview-groups,
  .fit-columns,
  .condition-grid,
  .duty-columns,
  .next-links,
  .related-list,
  .faq-next-list {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .flow-item,
  .stage-item {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 12px;
    padding: 16px;
  }

  .flow-num,
  .stage-no {
    font-size: 17px;
  }

  .data-table {
    font-size: 13px;
  }

  .data-table th,
  .data-table td {
    padding: 10px 12px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 15px;
  }

  .header-inner,
  .site-main,
  .footer-inner {
    padding-left: 14px;
    padding-right: 14px;
  }

  .brand {
    font-size: 17px;
  }

  .page-title,
  .hero-title,
  .error-title {
    font-size: 23px;
  }

  .section-title {
    font-size: 19px;
  }

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

  .btn {
    width: 100%;
  }

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

  .row-link {
    justify-self: start;
  }

  .error-block {
    padding: 24px 18px;
  }

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

  .faq-answer {
    padding-left: 16px;
  }

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