/* ==========================================================================
   囧次元 · 全站样式表
   分组：base / layout / components / pages / responsive
   ========================================================================== */

/* --------------------------------------------------------------------------
   base · 变量与基础排版
   -------------------------------------------------------------------------- */
:root {
  --ink: #16202B;
  --ink-soft: #3A4653;
  --ink-note: #6B7785;
  --page-bg: #F7F8F6;
  --card-bg: #FFFFFF;
  --line: #E2E6E9;
  --line-strong: #C9D0D6;
  --accent: #1F5C4A;
  --accent-soft: #E8F0EC;
  --status: #B4761F;
  --boundary-bg: #FBF6EC;
  --radius: 8px;
  --radius-sm: 4px;
  --shell: 1120px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC",
    Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

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

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

body {
  margin: 0;
  background: var(--page-bg);
  color: var(--ink-soft);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  font-variant-numeric: tabular-nums;
}

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

p {
  margin: 0;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.16s ease, border-color 0.16s ease;
}

a:hover,
a:focus-visible {
  color: #14402F;
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

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

figure {
  margin: 0;
}

figcaption {
  margin-top: 8px;
  color: var(--ink-note);
  font-size: 13px;
  line-height: 1.6;
}

strong {
  color: var(--ink);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   layout · 页头 / 主导航 / 主容器 / 页脚
   -------------------------------------------------------------------------- */
.site-body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--page-bg);
  color: var(--ink-soft);
}

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

.header-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 24px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 14px 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  font-size: 18px;
}

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

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #FFFFFF;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  margin-left: auto;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  cursor: pointer;
}

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

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-left: auto;
}

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

.nav-item > a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  font-size: 15px;
}

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

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 15px;
  font-weight: 600;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background: var(--accent);
  color: #FFFFFF;
  text-decoration: none;
}

.nav-cta.is-current {
  background: var(--accent);
  color: #FFFFFF;
}

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

.section-inner,
.footer-inner {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

/* 页脚：知识库式四栏 */
.site-footer {
  margin-top: 72px;
  background: var(--card-bg);
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, minmax(0, 1fr));
  gap: 32px 28px;
  padding-top: 48px;
  padding-bottom: 36px;
}

.footer-brand {
  max-width: 300px;
}

.footer-name {
  color: var(--ink);
  font-size: 17px;
  font-weight: 700;
}

.footer-desc {
  margin-top: 10px;
  color: var(--ink-note);
  font-size: 13px;
  line-height: 1.7;
}

.footer-col-title {
  margin-bottom: 12px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
}

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

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

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

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 18px 24px 28px;
  border-top: 1px solid var(--line);
}

.footer-overview,
.footer-copy {
  color: var(--ink-note);
  font-size: 13px;
}

/* --------------------------------------------------------------------------
   components · 通用按钮 / 面包屑 / 页面标题区 / 卡片 / 表格 / 清单
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

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

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #14402F;
  border-color: #14402F;
  color: #FFFFFF;
}

.btn-outline {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--ink);
}

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

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  color: #14402F;
}

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

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 28px 0 0;
  color: var(--ink-note);
  font-size: 13px;
}

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

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

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

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

.page-header {
  padding: 20px 0 24px;
  border-bottom: 1px solid var(--line);
}

.page-title {
  color: var(--ink);
  font-size: 34px;
  font-weight: 700;
  line-height: 1.3;
}

.page-description {
  max-width: 760px;
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 16px;
}

.page-meta {
  margin-top: 12px;
  color: var(--ink-note);
  font-size: 13px;
}

.page-meta a {
  color: var(--ink-note);
}

.page-meta a:hover,
.page-meta a:focus-visible {
  color: var(--accent);
}

.content-section {
  margin-top: 44px;
}

.content-section > h2,
.section-title {
  color: var(--ink);
  font-size: 24px;
  font-weight: 600;
}

.content-section > p,
.section-intro {
  margin-top: 12px;
  color: var(--ink-soft);
}

.section-head {
  max-width: 720px;
  margin-bottom: 26px;
}

.section-lead {
  margin-top: 12px;
  color: var(--ink-note);
  font-size: 15px;
}

.section-more {
  margin-top: 22px;
}

.section-figure {
  margin: 24px 0 8px;
}

.section-figure img,
.method-figure img,
.media img,
.entry-figure img,
.hero-figure img,
.scope-figure img,
.insight-figure img,
.faq-media img {
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
  object-fit: cover;
}

/* 数据表 */
.table-wrap {
  margin-top: 20px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.data-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table caption {
  padding: 14px 16px;
  color: var(--ink-note);
  font-size: 13px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

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

.data-table thead th {
  background: #F2F4F2;
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}

.data-table tbody th {
  color: var(--ink);
  font-weight: 600;
}

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

/* 检查清单（方框条目） */
.checklist {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 14px;
  line-height: 1.7;
}

.checklist-item:hover {
  border-color: var(--line-strong);
  background: #FCFDFC;
}

.checklist-box {
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: var(--card-bg);
}

.checklist-text {
  flex: 1 1 auto;
  min-width: 0;
}

/* 带对勾的条目列表 */
.check-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 10px 24px;
  margin-top: 18px;
}

.check-item {
  position: relative;
  padding-left: 22px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.7;
}

.check-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  border: 2px solid var(--accent);
  border-radius: 2px;
}

/* 边界提示块 */
.boundary-note,
.boundary-card {
  margin-top: 20px;
  padding: 20px 22px;
  background: var(--boundary-bg);
  border: 1px solid #EADFC9;
  border-radius: var(--radius);
}

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

.boundary-list li,
.boundary-item {
  position: relative;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.boundary-list li::before,
.boundary-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--status);
}

.note-inline,
.section-note,
.faq-boundary-note,
.section-tail {
  margin-top: 18px;
  color: var(--ink-note);
  font-size: 13px;
  line-height: 1.7;
}

/* 折叠问答 */
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

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

.faq-question {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 18px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

.faq-question::before {
  content: "＋";
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 14px;
}

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

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

.faq-answer {
  padding: 0 18px 16px 42px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.8;
}

/* 有序步骤列表 */
.step-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
}

.step-item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
  font-size: 15px;
  line-height: 1.75;
}

.step-item:hover {
  border-color: var(--line-strong);
}

/* --------------------------------------------------------------------------
   pages · 首页
   -------------------------------------------------------------------------- */
.home-main {
  display: block;
}

.hero-timeline {
  padding: 44px 0 8px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px 44px;
}

.hero-intro {
  max-width: 780px;
}

.hero-eyebrow {
  color: var(--status);
  font-size: 13px;
  font-weight: 600;
}

.hero-intro .page-title {
  margin-top: 12px;
  font-size: 34px;
}

.hero-lead {
  margin-top: 16px;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.8;
}

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

.hero-timeline-body {
  display: grid;
  grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
  gap: 32px;
  margin-top: 40px;
}

.timeline-heading {
  margin-bottom: 16px;
  color: var(--ink);
  font-size: 18px;
}

.timeline-list {
  position: relative;
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.timeline-node {
  position: relative;
  padding: 8px 0 8px 16px;
  color: var(--ink-note);
  font-size: 14px;
  line-height: 1.6;
  cursor: pointer;
}

.timeline-node::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 16px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--line-strong);
  border-radius: 50%;
  background: var(--card-bg);
}

.timeline-node:hover {
  color: var(--accent);
}

.timeline-node.is-active {
  color: var(--ink);
  font-weight: 600;
}

.timeline-node.is-active::before {
  border-color: var(--accent);
  background: var(--accent);
}

.timeline-name {
  display: block;
}

.timeline-index {
  margin-right: 6px;
  color: var(--ink-note);
  font-family: var(--font-mono);
  font-size: 12px;
}

.timeline-note {
  display: block;
  margin-top: 2px;
  color: var(--ink-note);
  font-size: 13px;
  font-weight: 400;
}

.timeline-detail-col {
  min-width: 0;
}

.timeline-detail {
  display: none;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #FCFDFC;
}

.timeline-detail.is-active {
  display: block;
}

.detail-tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
}

.detail-title {
  margin-top: 12px;
  font-size: 20px;
}

.detail-text {
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.detail-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}

.detail-list li {
  position: relative;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

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

.detail-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
}

.hero-figure {
  margin-top: 36px;
}

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

/* 首页能力清单 */
.capability-scope,
.stage-strip,
.insight-brief,
.faq-brief {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}

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

.capability-block {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.capability-block:hover {
  border-color: var(--line-strong);
}

.block-title {
  font-size: 18px;
}

.block-scene {
  margin-top: 10px;
  color: var(--ink-note);
  font-size: 14px;
  line-height: 1.7;
}

.block-subtitle {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
}

.block-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.block-list li {
  position: relative;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.block-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--accent);
}

.scope-figure {
  margin-top: 26px;
}

.scope-figure img {
  aspect-ratio: 16 / 6;
}

/* 首页阶段条带 */
.stage-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.stage-card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.stage-card:hover {
  border-color: var(--line-strong);
  border-top-color: var(--accent);
}

.stage-no {
  color: var(--status);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
}

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

.stage-subtitle {
  margin-top: 6px;
  color: var(--ink-note);
  font-size: 13px;
  font-weight: 400;
}

.stage-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.stage-items li {
  position: relative;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.stage-items li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--accent);
}

.stage-check {
  margin-top: auto;
  padding-top: 14px;
  color: var(--ink-note);
  font-size: 13px;
  line-height: 1.7;
}

/* 首页洞察摘要 */
.insight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.insight-card {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.insight-card:hover {
  border-color: var(--line-strong);
}

.insight-title {
  font-size: 17px;
}

.insight-text {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.insight-card .text-link {
  margin-top: 14px;
}

.insight-figure {
  margin-top: 26px;
}

.insight-figure img {
  aspect-ratio: 16 / 6;
}

/* 首页答疑速览 */
.faq-brief-list {
  max-width: 860px;
}

/* 首页对接入口 */
.contact-entry {
  padding: 56px 0;
  background: var(--card-bg);
}

.entry-body {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 320px);
  gap: 32px;
  align-items: start;
}

.entry-lead {
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.entry-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

.entry-list li {
  position: relative;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.entry-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--accent);
}

.entry-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #FCFDFC;
}

/* --------------------------------------------------------------------------
   pages · 内页通用骨架
   -------------------------------------------------------------------------- */
.inner-main {
  display: block;
  padding-bottom: 24px;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 320px);
  gap: 40px;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

.layout-shell {
  align-items: start;
}

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

.content-aside,
.content-sidebar,
.layout-side {
  min-width: 0;
}

/* 侧栏卡片 */
.aside-card,
.sidebar-card,
.side-card {
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.aside-card + .aside-card,
.sidebar-card + .sidebar-card,
.side-card + .side-card {
  margin-top: 20px;
}

.aside-title,
.sidebar-title,
.side-title {
  font-size: 16px;
}

.aside-desc,
.sidebar-text,
.side-text {
  margin-top: 8px;
  color: var(--ink-note);
  font-size: 13px;
  line-height: 1.7;
}

.related-list,
.index-list,
.side-link-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
}

.related-list a,
.index-list a,
.side-link-list a {
  display: block;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.6;
}

.related-list a:hover,
.related-list a:focus-visible,
.index-list a:hover,
.index-list a:focus-visible,
.side-link-list a:hover,
.side-link-list a:focus-visible {
  border-color: var(--line-strong);
  background: #FCFDFC;
  color: var(--accent);
  text-decoration: none;
}

.note-card {
  background: var(--boundary-bg);
  border-color: #EADFC9;
}

/* --------------------------------------------------------------------------
   pages · 服务能力页
   -------------------------------------------------------------------------- */
.capability-classify > p,
.capability-deliver > p,
.capability-boundary > p {
  margin-top: 12px;
}

.capability-classify .capability-block {
  margin-top: 20px;
}

.capability-scene {
  margin-top: 10px;
  color: var(--ink-note);
  font-size: 14px;
  line-height: 1.75;
}

.capability-detail {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 6px 18px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.capability-detail dt {
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
}

.capability-detail dd {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.condition-list,
.deliverable-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.condition-list li,
.deliverable-list li {
  position: relative;
  padding-left: 16px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.7;
}

.condition-list li::before,
.deliverable-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--accent);
}

/* --------------------------------------------------------------------------
   pages · 方法与流程页
   -------------------------------------------------------------------------- */
.stage-anchor {
  margin-top: 24px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.stage-anchor-item a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  color: var(--ink-soft);
  font-size: 14px;
}

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

.method-figure {
  margin-top: 24px;
}

.method-figure img {
  aspect-ratio: 16 / 6;
}

.stage-section,
.deliverable-section,
.checklist-section,
.nextstep-section,
.cta-section {
  margin-top: 44px;
}

.stage-block {
  margin-top: 22px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.stage-block:hover {
  border-color: var(--line-strong);
}

.stage-title {
  font-size: 18px;
}

.stage-goal {
  margin-top: 10px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.stage-meta {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 6px 18px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.stage-meta dt {
  color: var(--ink);
  font-size: 13px;
  font-weight: 600;
}

.stage-meta dd {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.checklist-group {
  margin-top: 20px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.checklist-group-title {
  margin-bottom: 12px;
  font-size: 15px;
}

.nextstep-section .step-list {
  counter-reset: nextstep;
}

.nextstep-section .step-item {
  position: relative;
  padding-left: 52px;
}

.nextstep-section .step-item::before {
  counter-increment: nextstep;
  content: counter(nextstep);
  position: absolute;
  left: 18px;
  top: 16px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 22px;
  text-align: center;
}

.cta-section {
  padding: 32px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
  text-align: left;
}

.cta-text {
  max-width: 640px;
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.cta-section .btn {
  margin-top: 20px;
  margin-right: 12px;
}

/* --------------------------------------------------------------------------
   pages · 洞察与方法说明页
   -------------------------------------------------------------------------- */
.insight-entry {
  margin-top: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
}

.entry-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 20px;
}

.entry-title {
  font-size: 22px;
}

.entry-meta {
  color: var(--ink-note);
  font-size: 13px;
}

.entry-figure {
  margin-top: 18px;
}

.entry-figure img {
  aspect-ratio: 16 / 7;
}

.entry-text {
  margin-top: 16px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.85;
}

.insight-entry .insight-grid {
  margin-top: 18px;
}

.insight-card-title {
  font-size: 16px;
}

.insight-card-text {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.insight-entry .step-list {
  counter-reset: insightstep;
}

.insight-entry .step-item {
  position: relative;
  padding-left: 52px;
}

.insight-entry .step-item::before {
  counter-increment: insightstep;
  content: counter(insightstep);
  position: absolute;
  left: 18px;
  top: 16px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 22px;
  text-align: center;
}

.related-section {
  margin-top: 44px;
}

.related-section .related-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.related-item {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.related-item:hover {
  border-color: var(--line-strong);
}

.related-title {
  font-size: 16px;
}

.related-text {
  margin-top: 8px;
  color: var(--ink-note);
  font-size: 14px;
  line-height: 1.75;
}

/* --------------------------------------------------------------------------
   pages · 答疑页
   -------------------------------------------------------------------------- */
.faq-anchor-nav {
  margin-top: 24px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.faq-anchor-item a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  color: var(--ink-soft);
  font-size: 14px;
}

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

.faq-group {
  margin-top: 44px;
}

.faq-group-head {
  max-width: 760px;
  margin-bottom: 20px;
}

.faq-group-title {
  font-size: 22px;
}

.faq-group-desc {
  margin-top: 10px;
  color: var(--ink-note);
  font-size: 14px;
  line-height: 1.75;
}

.faq-media {
  margin-bottom: 20px;
}

.faq-media img {
  aspect-ratio: 16 / 6;
}

.faq-group-boundary .boundary-card {
  margin-top: 0;
}

.faq-cta {
  margin-top: 48px;
  padding: 32px 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.faq-cta-title {
  font-size: 22px;
}

.faq-cta-desc {
  max-width: 640px;
  margin-top: 12px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.faq-cta .btn {
  margin-top: 20px;
}

/* --------------------------------------------------------------------------
   pages · 联系与对接页
   -------------------------------------------------------------------------- */
.section {
  margin-top: 44px;
}

.section-path .step-list {
  counter-reset: pathstep;
}

.section-path .step-item {
  position: relative;
  padding-left: 58px;
}

.step-index {
  position: absolute;
  left: 18px;
  top: 16px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 24px;
  text-align: center;
}

.step-title {
  font-size: 16px;
}

.step-text {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

.media {
  margin-top: 22px;
}

.media-wide img {
  aspect-ratio: 16 / 6;
}

.qa-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
}

.qa-item {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.qa-item:hover {
  border-color: var(--line-strong);
  border-left-color: var(--accent);
}

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

.qa-answer {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.8;
}

.next-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.next-item {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.next-title {
  font-size: 16px;
}

.next-text {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
}

/* --------------------------------------------------------------------------
   pages · 404
   -------------------------------------------------------------------------- */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 72px 24px;
}

.error-panel {
  width: 100%;
  max-width: 720px;
  padding: 36px 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card-bg);
}

.error-code {
  color: var(--status);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
}

.error-panel h1 {
  margin-top: 12px;
  font-size: 30px;
}

.error-lead {
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.8;
}

.error-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.error-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font-size: 14px;
}

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

.error-note {
  margin-top: 22px;
  color: var(--ink-note);
  font-size: 13px;
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   responsive · 1024px
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px 24px;
  }

  .footer-brand {
    grid-column: 1 / -1;
    max-width: 520px;
  }

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

  .timeline-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 8px 16px;
    padding-left: 0;
    border-left: 0;
  }

  .timeline-node {
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: var(--card-bg);
  }

  .timeline-node::before {
    display: none;
  }

  .timeline-node.is-active {
    border-color: var(--accent);
  }

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

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

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

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

  .content-aside,
  .content-sidebar,
  .layout-side {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
  }

  .aside-card + .aside-card,
  .sidebar-card + .sidebar-card,
  .side-card + .side-card {
    margin-top: 0;
  }
}

/* --------------------------------------------------------------------------
   responsive · 640px
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
  .header-inner {
    gap: 10px 16px;
    padding: 12px 18px;
  }

  .brand-slogan {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    order: 3;
    width: 100%;
    margin-left: 0;
    padding-top: 8px;
    border-top: 1px solid var(--line);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

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

  .nav-item > a {
    justify-content: flex-start;
    padding: 0 12px;
    font-size: 15px;
  }

  .nav-cta {
    justify-content: center;
    min-height: 44px;
  }

  .section-inner,
  .footer-inner,
  .footer-bottom,
  .header-inner,
  .hero-inner,
  .entry-body,
  .page-layout {
    padding-left: 18px;
    padding-right: 18px;
  }

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

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

  .entry-title,
  .faq-group-title,
  .faq-cta-title {
    font-size: 19px;
  }

  .stage-title,
  .block-title,
  .insight-title,
  .qa-question,
  .step-title,
  .next-title,
  .related-title,
  .insight-card-title {
    font-size: 17px;
  }

  .hero-timeline,
  .capability-scope,
  .stage-strip,
  .insight-brief,
  .faq-brief,
  .contact-entry {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .hero-timeline {
    padding-bottom: 0;
  }

  .hero-inner {
    padding-bottom: 36px;
  }

  .hero-actions .btn {
    flex: 1 1 100%;
  }

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

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

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

  .capability-detail dd,
  .stage-meta dd {
    margin-bottom: 8px;
  }

  .data-table {
    min-width: 520px;
  }

  .faq-answer {
    padding-left: 18px;
  }

  .stage-anchor-list,
  .faq-anchor-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .stage-anchor-item,
  .faq-anchor-item {
    flex: 0 0 auto;
  }

  .cta-section,
  .faq-cta,
  .error-panel {
    padding: 24px 20px;
  }

  .cta-section .btn,
  .faq-cta .btn {
    display: flex;
    width: 100%;
    margin-right: 0;
  }

  .error-main {
    padding: 48px 18px;
  }

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

  .error-links a {
    flex: 1 1 100%;
    justify-content: center;
  }

  .footer-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
    padding-top: 36px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 6px;
  }
}