/* ============================================================
   base — 基础变量、重置与全局字体
   ============================================================ */
:root {
  --color-primary: #0B1F3A;
  --color-accent: #2F6FED;
  --color-bg: #F4F6F8;
  --color-card: #FFFFFF;
  --color-warm: #FF8A3D;
  --color-muted: #5A6B82;
  --color-line: #E2E8F0;
  --radius: 8px;
  --container: 1140px;
  --font-base: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--color-primary);
  background: var(--color-bg);
  line-height: 1.75;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #1D4ED8;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.35;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 20px;
}

p {
  font-size: 16px;
  color: #33415C;
}

button {
  font-family: inherit;
}

/* ============================================================
   layout — 全站统一容器与骨架
   ============================================================ */
.site-header {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-line);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
  flex-shrink: 0;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
}

.brand-tagline {
  font-size: 12px;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  font-size: 15px;
  color: var(--color-primary);
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  display: inline-block;
}

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

.site-nav a.is-current {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 10px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}

.site-main {
  flex: 1;
}

.inner-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 64px;
  width: 100%;
}

.site-footer {
  background: var(--color-primary);
  color: #B8C4D6;
  padding: 56px 0 0;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.footer-col h2 {
  font-size: 16px;
  color: #FFFFFF;
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: #B8C4D6;
  font-size: 14px;
}

.footer-col a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 48px;
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  color: #8A9AB0;
  font-size: 14px;
  max-width: var(--container);
  margin: 0 auto;
}

/* 面包屑 */
.breadcrumb {
  padding: 20px 0 8px;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
}

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

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

.breadcrumb-sep {
  color: #9AA7BA;
}

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

/* 页面标题区 */
.page-header {
  padding: 8px 0 16px;
}

.page-title {
  font-size: 32px;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.page-title-area p,
.page-title p,
.page-lead,
.lead {
  font-size: 16px;
  color: var(--color-muted);
  max-width: 760px;
}

/* ============================================================
   components — 通用组件
   ============================================================ */

/* 按钮 */
.btn,
.cta-button,
.cta-button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 28px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}

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

.btn-primary:hover,
.cta-button:hover {
  background: #1D4ED8;
  color: #FFFFFF;
}

.btn-secondary,
.cta-button-secondary {
  background: var(--color-card);
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-secondary:hover,
.cta-button-secondary:hover {
  background: #EEF4FF;
  color: #1D4ED8;
}

/* 首页首屏 */
.hero {
  background: var(--color-card);
  padding: 56px 0 64px;
}

.hero-content {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.hero-eyebrow {
  display: inline-block;
  background: #EEF4FF;
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 36px;
  max-width: 720px;
  margin-bottom: 16px;
}

.hero-lead {
  font-size: 17px;
  color: var(--color-muted);
  max-width: 640px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-media {
  margin-top: 40px;
}

.hero-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  max-height: 420px;
  object-fit: cover;
}

/* 内容配图 */
.content-media {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.content-media-primary {
  margin-top: 48px;
}

.content-media img {
  width: 100%;
  border-radius: var(--radius);
  max-height: 360px;
  object-fit: cover;
}

.content-media figcaption {
  font-size: 14px;
  color: var(--color-muted);
  padding: 12px 0 0;
  text-align: center;
}

/* 通用区块标题 */
.section-lead,
.section-intro {
  font-size: 16px;
  color: var(--color-muted);
  margin-bottom: 32px;
  max-width: 760px;
}

/* 首页核心事实 */
.core-facts {
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px 24px;
}

.core-facts h2,
.service-filter-panel h2,
.process-preview h2,
.faq-preview h2 {
  font-size: 28px;
  margin-bottom: 12px;
}

.facts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.fact-card {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.fact-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(11, 31, 58, 0.08);
}

.fact-card h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.fact-card p {
  font-size: 15px;
  color: var(--color-muted);
}

/* 首页服务筛选 */
.service-filter-panel {
  background: var(--color-card);
  padding: 64px 0;
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.service-filter-panel .section-lead {
  margin-bottom: 40px;
}

.filter-layout {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: start;
}

.filter-sidebar {
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: sticky;
  top: 96px;
}

.filter-sidebar h3 {
  font-size: 18px;
  margin-bottom: 20px;
}

.filter-options {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.filter-options label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: var(--color-primary);
  cursor: pointer;
  min-height: 44px;
}

.filter-options input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
}

.filter-reset {
  background: none;
  border: 1px solid var(--color-line);
  color: var(--color-muted);
  padding: 10px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  cursor: pointer;
  width: 100%;
  min-height: 44px;
  transition: all 0.2s ease;
}

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

.service-result-area {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.service-result-area .service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.service-result-area .service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(11, 31, 58, 0.08);
}

.service-result-area .service-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.service-result-area .service-card p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.service-result-area .service-card a {
  font-size: 14px;
  font-weight: 600;
}

/* 首页流程摘要 */
.process-preview {
  max-width: var(--container);
  margin: 0 auto;
  padding: 64px 24px;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.process-step {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: #EEF4FF;
  color: var(--color-accent);
  font-size: 15px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 16px;
}

.process-step h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
  color: var(--color-muted);
}

.process-link {
  text-align: center;
}

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

/* 首页 FAQ 预览 */
.faq-preview {
  background: var(--color-bg);
  padding: 64px 0;
}

.faq-preview .section-lead {
  margin-bottom: 40px;
}

.faq-grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.faq-card {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.faq-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.faq-card p {
  font-size: 14px;
  color: var(--color-muted);
}

.faq-link {
  text-align: center;
}

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

/* ============================================================
   pages — 各页面业务模块
   ============================================================ */

/* ---- servicemap 页 ---- */
.role-tabs {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 48px;
}

.role-tabs-inner h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.role-tabs-inner p {
  color: var(--color-muted);
  margin-bottom: 24px;
}

.role-tab-list {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.role-tab-list a {
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  transition: all 0.2s ease;
}

.role-tab-list a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.service-matrix {
  margin-bottom: 48px;
}

.matrix-inner {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.matrix-group {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 36px 32px;
}

.group-header h2 {
  font-size: 22px;
  margin-bottom: 4px;
}

.group-header p {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 24px;
}

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

.matrix-group .service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 24px;
}

.matrix-group .service-card h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.service-object {
  font-size: 13px;
  color: var(--color-warm);
  font-weight: 600;
  margin-bottom: 8px;
}

.service-desc {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.matrix-group .service-card a {
  font-size: 14px;
  font-weight: 600;
}

/* 角色对比 */
.role-compare,
.selection-guide {
  max-width: var(--container);
  margin: 0 auto;
}

.compare-inner {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 36px 32px;
  margin-bottom: 48px;
}

.compare-inner h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.compare-inner > p {
  color: var(--color-muted);
  margin-bottom: 28px;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.compare-item {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 24px 20px;
}

.compare-item h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.compare-item p {
  font-size: 14px;
  color: var(--color-muted);
}

/* 选择建议 */
.guide-inner {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 36px 32px;
  margin-bottom: 48px;
}

.guide-inner h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.guide-inner > p {
  color: var(--color-muted);
  margin-bottom: 28px;
}

.guide-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 28px;
}

.guide-list li {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 20px 24px;
}

.guide-list h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.guide-list p {
  font-size: 14px;
  color: var(--color-muted);
}

.guide-more {
  display: flex;
  gap: 24px;
  font-size: 15px;
  font-weight: 600;
}

/* 服务场景展示 */
.matrix-cover {
  margin-bottom: 48px;
}

.cover-figure {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.cover-figure img {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
}

.cover-figure figcaption {
  padding: 16px 24px;
  font-size: 14px;
  color: var(--color-muted);
}

/* ---- yqjc 页 ---- */
.service-cover {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: center;
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 48px;
}

.service-cover-figure {
  margin: 0;
}

.service-cover-img {
  width: 100%;
  max-height: 260px;
  object-fit: cover;
  border-radius: var(--radius);
}

.service-cover-text p {
  font-size: 15px;
  color: var(--color-muted);
}

.phase-group {
  margin-bottom: 48px;
}

.phase-group h2,
.delivery-note h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.phase-group .section-intro,
.delivery-note .section-intro {
  margin-bottom: 32px;
}

.phase-item {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 20px;
}

.phase-item h3 {
  font-size: 20px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
}

.phase-detail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.phase-detail li h4 {
  font-size: 15px;
  color: var(--color-accent);
  margin-bottom: 6px;
}

.phase-detail li p {
  font-size: 14px;
  color: var(--color-muted);
}

.delivery-note {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 36px 32px;
  margin-bottom: 48px;
}

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

.delivery-list li {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 24px;
}

.delivery-list h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.delivery-list p {
  font-size: 14px;
  color: var(--color-muted);
}

/* CTA 区 */
.cta {
  background: var(--color-primary);
  border-radius: var(--radius);
  padding: 48px 40px;
  text-align: center;
  margin-bottom: 48px;
}

.cta h2 {
  color: #FFFFFF;
  font-size: 26px;
  margin-bottom: 12px;
}

.cta p {
  color: #B8C4D6;
  margin-bottom: 28px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.cta-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta .cta-links a {
  min-height: 44px;
  padding: 10px 28px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
}

.cta .cta-links a:first-child {
  background: var(--color-accent);
  color: #FFFFFF;
}

.cta .cta-links a:last-child {
  background: transparent;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.4);
}

.cta .cta-links a:hover {
  opacity: 0.9;
}

/* 相关链接 */
.related-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 20px 0;
  border-top: 1px solid var(--color-line);
  margin-top: 16px;
}

.related-links-label {
  font-size: 14px;
  color: var(--color-muted);
  font-weight: 600;
}

.related-links-item {
  font-size: 14px;
  padding: 8px 16px;
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  color: var(--color-primary);
}

.related-links-item:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ---- nrsh 页 ---- */
.service-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 36px 32px;
  margin-bottom: 48px;
}

.intro-text h2 {
  font-size: 24px;
  margin-bottom: 16px;
}

.intro-text p {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.intro-media img {
  width: 100%;
  max-height: 260px;
  object-fit: cover;
  border-radius: var(--radius);
}

.stage-group {
  margin-bottom: 48px;
}

.stage-group h2,
.standard-list h2,
.result-note h2 {
  font-size: 24px;
  margin-bottom: 24px;
}

.stage-card {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 20px;
}

.stage-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.stage-header h3 {
  font-size: 20px;
}

.stage-tag {
  background: #EEF4FF;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
}

.stage-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 16px;
}

.meta-item {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 12px 16px;
}

.meta-item dt {
  font-size: 13px;
  color: var(--color-muted);
}

.meta-item dd {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
}

.stage-desc {
  font-size: 14px;
  color: var(--color-muted);
}

.standard-list {
  margin-bottom: 48px;
}

.standard-item {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 16px;
}

.standard-item h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.standard-item p {
  font-size: 14px;
  color: var(--color-muted);
}

.result-note {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 36px 32px;
  margin-bottom: 48px;
}

.result-note > p {
  color: var(--color-muted);
  margin-bottom: 24px;
}

.result-item {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 12px;
}

.result-item h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.result-item p {
  font-size: 14px;
  color: var(--color-muted);
}

.cta-section {
  margin-bottom: 48px;
}

.cta-content {
  background: var(--color-primary);
  border-radius: var(--radius);
  padding: 48px 40px;
  text-align: center;
}

.cta-content h2 {
  color: #FFFFFF;
  font-size: 26px;
  margin-bottom: 12px;
}

.cta-content p {
  color: #B8C4D6;
  margin-bottom: 28px;
}

/* ---- hgtx 页 ---- */
.system-overview {
  margin-bottom: 48px;
}

.overview-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 36px 32px;
  margin-bottom: 32px;
}

.overview-text h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.overview-text p {
  font-size: 15px;
  color: var(--color-muted);
}

.overview-figure img {
  width: 100%;
  max-height: 240px;
  object-fit: cover;
  border-radius: var(--radius);
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.module-card {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 24px;
}

.module-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.module-card p {
  font-size: 14px;
  color: var(--color-muted);
}

.build-phases {
  margin-bottom: 48px;
}

.build-phases h2,
.support-list h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.build-phases > p,
.support-list > p {
  color: var(--color-muted);
  margin-bottom: 32px;
}

.phase-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.phase-item {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px 32px;
}

.phase-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.phase-header h3 {
  font-size: 20px;
}

.phase-period {
  background: #EEF4FF;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
}

.phase-item dl {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.phase-item dt {
  font-size: 13px;
  color: var(--color-muted);
}

.phase-item dd {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
}

.support-list {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 36px 32px;
  margin-bottom: 48px;
}

.support-list ul {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.support-list li {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 24px;
}

.support-list h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.support-list p {
  font-size: 14px;
  color: var(--color-muted);
}

/* ---- hzlc 页 ---- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.step-item {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: #EEF4FF;
  color: var(--color-accent);
  font-size: 15px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 16px;
}

.step-item h2 {
  font-size: 17px;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 14px;
  color: var(--color-muted);
}

.stage-detail {
  margin-bottom: 48px;
}

.stage-block {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 20px;
}

.stage-block h2 {
  font-size: 20px;
  margin-bottom: 12px;
}

.stage-block > p {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 16px;
}

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

.stage-meta p {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 14px;
}

.stage-meta strong {
  color: var(--color-primary);
  display: block;
  font-size: 13px;
  margin-bottom: 4px;
}

.prepare-checklist {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 36px 32px;
  margin-bottom: 48px;
}

.prepare-media img {
  width: 100%;
  max-height: 260px;
  object-fit: cover;
  border-radius: var(--radius);
}

.prepare-content h2 {
  font-size: 24px;
  margin-bottom: 12px;
}

.prepare-content > p {
  color: var(--color-muted);
  margin-bottom: 20px;
}

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

.check-list li {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 15px;
}

.check-list strong {
  color: var(--color-primary);
  margin-right: 8px;
}

.feedback {
  margin-bottom: 48px;
}

.feedback h2 {
  font-size: 24px;
  margin-bottom: 24px;
}

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

.feedback-item {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.feedback-item h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.feedback-item p {
  font-size: 14px;
  color: var(--color-muted);
}

.cta-card {
  background: var(--color-primary);
  border-radius: var(--radius);
  padding: 48px 40px;
  text-align: center;
  margin-bottom: 48px;
}

.cta-card h2 {
  color: #FFFFFF;
  font-size: 26px;
  margin-bottom: 12px;
}

.cta-card p {
  color: #B8C4D6;
  margin-bottom: 28px;
}

/* ---- faq 页 ---- */
.faq-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 48px;
}

.faq-intro-media img {
  width: 100%;
  max-height: 240px;
  object-fit: cover;
  border-radius: var(--radius);
}

.faq-intro-text p {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 12px;
}

.faq-group {
  background: var(--color-card);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
}

.faq-group h2 {
  font-size: 22px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line);
}

.faq-group details {
  border-bottom: 1px solid var(--color-line);
}

.faq-group details:last-child {
  border-bottom: 0;
}

.faq-group summary {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 18px 0;
  cursor: pointer;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
}

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

.faq-group summary::after {
  content: "+";
  font-size: 22px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-group details[open] summary::after {
  content: "−";
}

.faq-answer {
  padding: 0 0 20px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 8px;
}

/* ---- 404 页 ---- */
.error-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
}

.error-wrap {
  text-align: center;
  max-width: 560px;
}

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
}

.error-wrap h1 {
  font-size: 28px;
  margin-bottom: 16px;
}

.error-lead {
  font-size: 16px;
  color: var(--color-muted);
  margin-bottom: 32px;
}

.error-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   responsive — 响应式断点
   ============================================================ */
@media (max-width: 1024px) {
  .compare-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .service-cover,
  .overview-intro,
  .service-intro,
  .prepare-checklist,
  .faq-intro {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  /* 导航切换 */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-card);
    border-bottom: 1px solid var(--color-line);
    padding: 0 24px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .site-nav.is-open {
    max-height: 480px;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px 0;
  }

  .site-nav li {
    border-bottom: 1px solid var(--color-line);
  }

  .site-nav li:last-child {
    border-bottom: 0;
  }

  .site-nav a {
    display: block;
    padding: 14px 8px;
    font-size: 16px;
    border-bottom: 0;
  }

  .site-nav a.is-current {
    border-bottom: 0;
    color: var(--color-accent);
  }

  .filter-layout {
    grid-template-columns: 1fr;
  }

  .filter-sidebar {
    position: static;
  }

  .facts-grid,
  .process-steps,
  .delivery-list,
  .support-list ul {
    grid-template-columns: repeat(2, 1fr);
  }

  .phase-detail {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

@media (max-width: 640px) {
  .header-inner {
    height: 64px;
    padding: 0 16px;
  }

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

  .brand-tagline {
    font-size: 11px;
  }

  .site-nav {
    top: 64px;
    padding: 0 16px;
  }

  .inner-main {
    padding: 0 16px 48px;
  }

  .hero {
    padding: 40px 0;
  }

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

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

  .core-facts,
  .process-preview {
    padding: 48px 16px;
  }

  .service-filter-panel {
    padding: 48px 0;
  }

  .filter-layout {
    padding: 0 16px;
  }

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

  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }

  .facts-grid,
  .process-steps,
  .service-result-area,
  .faq-grid,
  .group-cards,
  .delivery-list,
  .support-list ul,
  .stage-meta,
  .feedback-grid,
  .steps,
  .compare-grid,
  .module-grid {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 0 16px;
  }

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

  .role-tabs,
  .matrix-group,
  .compare-inner,
  .guide-inner,
  .service-cover,
  .delivery-note,
  .stage-card,
  .result-note,
  .overview-intro,
  .phase-item,
  .support-list,
  .stage-block,
  .prepare-checklist,
  .faq-group,
  .faq-intro,
  .service-intro {
    padding: 24px 20px;
  }

  .stage-header,
  .phase-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .stage-meta {
    grid-template-columns: 1fr;
  }

  .phase-item dl {
    grid-template-columns: 1fr;
  }

  .guide-more {
    flex-direction: column;
    gap: 12px;
  }

  .cta,
  .cta-content,
  .cta-card {
    padding: 40px 24px;
  }

  .cta-links {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-links a {
    justify-content: center;
  }

  .error-code {
    font-size: 56px;
  }

  .error-main {
    padding: 48px 16px;
  }

  .related-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .related-links-item {
    width: 100%;
    text-align: center;
  }
}