/* ============================================================
   黑料网最新网址 · 整站样式表
   品牌手册风格：深蓝主色 / 浅灰背景 / 橙色强调
   断点：992px / 768px
   ============================================================ */

/* ============================================================
   1. Base —— 变量、重置、全局基础
   ============================================================ */
:root {
  --color-primary: #1b2a41;
  --color-bg: #f5f6f8;
  --color-accent: #e6572d;
  --color-white: #ffffff;
  --color-text-secondary: #6b7280;
  --color-border: #e5e7eb;
  --color-text-body: #374151;
  --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container-max: 1200px;
  --radius-card: 8px;
  --radius-small: 4px;
  --transition-base: 0.2s ease;
}

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

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

body {
  font-family: var(--font-family);
  color: var(--color-text-body);
  background-color: var(--color-bg);
  line-height: 1.7;
  font-weight: 400;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  color: var(--color-primary);
  font-weight: 600;
  line-height: 1.4;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.125rem;
}

p {
  margin-bottom: 0.75rem;
}

/* ============================================================
   2. Layout —— 页头、页脚、主容器、页面外壳
   ============================================================ */

/* 全站统一页头 */
.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: 100;
}

.header-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

/* 主导航 */
.site-nav {
  display: block;
}

.nav-list {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-list li {
  position: relative;
}

.nav-list a {
  display: inline-block;
  padding: 8px 0;
  font-size: 0.9375rem;
  color: var(--color-text-body);
  font-weight: 500;
  border-bottom: 2px solid transparent;
}

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

.nav-list a.is-current {
  color: var(--color-primary);
  font-weight: 600;
  border-bottom-color: var(--color-accent);
}

/* 汉堡按钮（桌面隐藏） */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 页脚 */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  margin-top: 64px;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-col h3 {
  color: var(--color-white);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.footer-col ul a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 24px;
  text-align: center;
}

.footer-bottom p {
  max-width: var(--container-max);
  margin: 0 auto;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 0;
}

/* 主容器 */
.site-main {
  min-height: 60vh;
}

/* 内页统一主容器宽度 */
.inner-main {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 32px 24px 0;
}

/* 内页双栏布局（主内容 + 右侧栏） */
.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 40px;
  align-items: start;
}

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

.sidebar-right {
  min-width: 0;
}

/* 面包屑 */
.breadcrumb {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

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

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

.breadcrumb-sep {
  color: #c0c4cc;
}

.breadcrumb-current {
  color: var(--color-primary);
  font-weight: 500;
}

/* 页面标题区 */
.page-header {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  margin-bottom: 32px;
}

.page-title {
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.page-description {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
  max-width: 720px;
}

/* 内页 CTA 区 */
.cta-section,
.cta-block {
  background-color: var(--color-primary);
  border-radius: var(--radius-card);
  padding: 48px 32px;
  text-align: center;
  margin: 48px 0;
}

.cta-section h2,
.cta-block h2 {
  color: var(--color-white);
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.cta-section p,
.cta-block p {
  color: rgba(255, 255, 255, 0.8);
  max-width: 560px;
  margin: 0 auto 24px;
}

.cta-button {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 12px 32px;
  border-radius: var(--radius-card);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.cta-button:hover {
  background-color: #d14a22;
  color: var(--color-white);
  transform: translateY(-1px);
}

/* ============================================================
   3. Components —— 按钮、标签、卡片、步骤、FAQ、目录等
   ============================================================ */

/* 按钮 */
.btn-primary {
  display: inline-block;
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 12px 32px;
  border-radius: var(--radius-card);
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.btn-primary:hover {
  background-color: #d14a22;
  color: var(--color-white);
  transform: translateY(-1px);
}

/* 状态标签 */
.status-tag {
  display: inline-block;
  background-color: rgba(230, 87, 45, 0.1);
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

/* 区块标题区（首页） */
.section-header {
  margin-bottom: 32px;
}

.section-header h2 {
  font-size: 1.625rem;
  margin-bottom: 8px;
}

.section-header p {
  color: var(--color-text-secondary);
  max-width: 640px;
  margin-bottom: 0;
}

/* 区块标题区（内页 contact） */
.section-head {
  margin-bottom: 28px;
}

.section-head h2 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.section-head p {
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* 首页 hero 公告 */
.section-title-wrap h2 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.announce-list li {
  border-bottom: 1px solid var(--color-border);
}

.announce-list li:last-child {
  border-bottom: none;
}

.announce-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
}

.announce-title {
  flex: 1;
  font-size: 0.875rem;
  color: var(--color-text-body);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.announce-date {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

/* 服务卡片 */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.service-card:hover {
  box-shadow: 0 4px 16px rgba(27, 42, 65, 0.08);
  transform: translateY(-2px);
}

.service-card img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: var(--radius-small);
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.service-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.service-card a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
}

/* 方案卡片 */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.solution-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.solution-card:hover {
  box-shadow: 0 4px 16px rgba(27, 42, 65, 0.08);
  transform: translateY(-2px);
}

.solution-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.solution-card h3 {
  font-size: 1.0625rem;
  margin: 20px 20px 8px;
}

.solution-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin: 0 20px 16px;
}

.solution-card a {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  margin: 0 20px 20px;
}

/* 步骤条（首页） */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.process-step {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px 20px;
  position: relative;
}

.process-step .step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 50%;
  margin-bottom: 16px;
}

.process-step h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* FAQ 折叠面板 */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.faq-item summary {
  padding: 18px 24px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

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

.faq-item summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p,
.faq-answer {
  padding: 0 24px 18px;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.faq-more {
  margin-top: 24px;
  text-align: center;
}

.faq-more a {
  display: inline-block;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 10px 28px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
}

.faq-more a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* 侧栏目录 */
.page-directory,
.aside-module,
.sidebar-related,
.sidebar-recommend {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  margin-bottom: 24px;
}

.page-directory h2,
.aside-module h2,
.sidebar-related h2,
.sidebar-recommend h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.page-directory ul li,
.aside-module ul li,
.sidebar-related ul li,
.sidebar-recommend ul li {
  margin-bottom: 10px;
}

.page-directory ul a,
.aside-module ul a,
.sidebar-related ul a,
.sidebar-recommend ul a {
  font-size: 0.875rem;
  color: var(--color-text-body);
  display: inline-block;
  padding: 4px 0;
}

.page-directory ul a:hover,
.aside-module ul a:hover,
.sidebar-related ul a:hover,
.sidebar-recommend ul a:hover {
  color: var(--color-accent);
}

/* 相关推荐链接（solutions / contact 底部） */
.related-links {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin: 32px 0;
  padding: 16px 24px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.related-links-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
}

.related-links-item {
  font-size: 0.875rem;
  color: var(--color-accent);
  padding: 6px 12px;
  background-color: rgba(230, 87, 45, 0.06);
  border-radius: var(--radius-small);
}

/* ============================================================
   4. Pages —— 各页面专属模块
   ============================================================ */

/* ---------- 首页 hero ---------- */
.hero-section {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
}

.hero-layout {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 64px 24px 48px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
}

.hero-content h1 {
  font-size: 2.25rem;
  line-height: 1.35;
  margin-bottom: 16px;
}

.hero-content p {
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin-bottom: 28px;
}

.hero-figure img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  border-radius: var(--radius-card);
}

/* 首页 hero 公告区 */
.hero-announcements {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px 40px;
}

.hero-announcements .section-title-wrap {
  max-width: 480px;
}

/* 首页 services 区 */
.services-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 56px 24px;
}

/* 首页 solutions 区 */
.solutions-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 56px 24px;
}

/* 首页 process 区 */
.process-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 56px 24px;
}

/* 首页 faq 区 */
.faq-section {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 56px 24px;
}

/* ---------- services 页 ---------- */
.service-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  margin-bottom: 32px;
}

.service-section h2 {
  font-size: 1.375rem;
  margin-bottom: 20px;
}

.service-figure {
  margin-bottom: 20px;
}

.service-figure img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius-card);
}

.service-section p {
  font-size: 0.9375rem;
  margin-bottom: 12px;
}

.service-list {
  margin: 16px 0 20px;
  padding-left: 20px;
  list-style: disc;
}

.service-list li {
  font-size: 0.875rem;
  color: var(--color-text-body);
  margin-bottom: 8px;
  padding-left: 4px;
}

.apply-tag {
  display: inline-block;
  background-color: rgba(27, 42, 65, 0.06);
  border-radius: var(--radius-small);
  padding: 8px 16px;
  font-size: 0.8125rem;
  color: var(--color-primary);
  margin-bottom: 0;
}

/* ---------- solutions 页 ---------- */
.solution-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  margin-bottom: 32px;
}

.solution-section h2 {
  font-size: 1.375rem;
  margin-bottom: 20px;
}

.solution-figure {
  margin-bottom: 20px;
}

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

.solution-section p {
  font-size: 0.9375rem;
  margin-bottom: 12px;
}

.solution-section h3 {
  font-size: 1rem;
  margin: 20px 0 12px;
  color: var(--color-primary);
}

.point-list {
  margin: 12px 0 20px;
  padding-left: 0;
}

.point-list li {
  font-size: 0.875rem;
  color: var(--color-text-body);
  margin-bottom: 8px;
  padding-left: 20px;
  position: relative;
}

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

.applicable-tag {
  display: inline-block;
  background-color: rgba(27, 42, 65, 0.06);
  border-radius: var(--radius-small);
  padding: 8px 16px;
  font-size: 0.8125rem;
  color: var(--color-primary);
  margin-bottom: 0;
}

/* ---------- knowledge 页 ---------- */
.notice-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: rgba(230, 87, 45, 0.06);
  border: 1px solid rgba(230, 87, 45, 0.2);
  border-radius: var(--radius-card);
  padding: 12px 20px;
  margin-bottom: 24px;
}

.notice-bar p {
  font-size: 0.8125rem;
  color: var(--color-text-body);
  margin-bottom: 0;
}

/* 左侧栏布局 */
.layout-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.sidebar-left .page-sidebar {
  min-width: 0;
}

.page-sidebar {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
}

.sidebar-nav h2,
.sidebar-related h2 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-nav ul li,
.sidebar-related ul li {
  margin-bottom: 10px;
}

.sidebar-nav ul a,
.sidebar-related ul a {
  font-size: 0.875rem;
  color: var(--color-text-body);
  display: inline-block;
  padding: 4px 0;
}

.sidebar-nav ul a:hover,
.sidebar-related ul a:hover {
  color: var(--color-accent);
}

.sidebar-related {
  margin-top: 24px;
  background: none;
  border: none;
  padding: 0;
}

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

.content-section {
  margin-bottom: 40px;
}

.content-section h2 {
  font-size: 1.375rem;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.content-section > p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.article-card {
  display: flex;
  gap: 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px;
  margin-bottom: 16px;
}

.article-media {
  flex-shrink: 0;
  width: 160px;
}

.article-media img {
  width: 160px;
  height: 110px;
  object-fit: cover;
  border-radius: var(--radius-small);
}

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

.article-body h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.article-meta {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.article-body p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.update-list li {
  display: flex;
  gap: 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 16px 20px;
  margin-bottom: 12px;
}

.update-list time {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  flex-shrink: 0;
  min-width: 80px;
}

.update-list p {
  font-size: 0.875rem;
  color: var(--color-text-body);
  margin-bottom: 0;
}

/* ---------- faq 页 ---------- */
.page-header-inner {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.page-header-inner .page-title {
  flex: 1;
}

.content-media-inline {
  margin-top: 24px;
}

.content-media img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--radius-card);
}

.content-media figcaption {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: 8px;
}

.faq-group {
  margin-bottom: 40px;
}

.faq-group h2 {
  font-size: 1.25rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.info-note {
  background-color: rgba(27, 42, 65, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 24px;
  margin-top: 32px;
}

.info-note p {
  font-size: 0.875rem;
  color: var(--color-text-body);
  margin-bottom: 8px;
}

.info-note a {
  color: var(--color-accent);
  font-weight: 500;
}

/* faq 页侧栏 */
.sidebar {
  min-width: 0;
}

.sidebar-inner {
  position: sticky;
  top: 24px;
}

.sidebar-inner h2 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-nav ul li {
  margin-bottom: 10px;
}

.sidebar-nav ul a {
  font-size: 0.875rem;
  color: var(--color-text-body);
}

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

.sidebar-recommend {
  background: none;
  border: none;
  padding: 0;
  margin-top: 24px;
}

.sidebar-recommend h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.sidebar-recommend ul li {
  margin-bottom: 10px;
}

.sidebar-recommend ul a {
  font-size: 0.875rem;
  color: var(--color-text-body);
}

.sidebar-recommend ul a:hover {
  color: var(--color-accent);
}

/* ---------- contact 页 ---------- */
.contact-visual {
  margin-bottom: 32px;
}

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

.contact-page .process-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  margin-bottom: 32px;
}

.step-item {
  background: none;
  border: none;
  padding: 0;
}

.step-item .step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 50%;
  margin-bottom: 16px;
}

.step-item h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.checklist-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  margin-bottom: 32px;
}

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

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

.checklist-item h3 {
  font-size: 0.9375rem;
  margin-bottom: 8px;
}

.checklist-item p {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.communication-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  margin-bottom: 32px;
}

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

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

.communication-list h3 {
  font-size: 0.9375rem;
  margin-bottom: 8px;
}

.communication-list p {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.info-box {
  background-color: rgba(27, 42, 65, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px;
  margin-bottom: 32px;
}

.info-box h2 {
  font-size: 1.125rem;
  margin-bottom: 12px;
}

.info-box p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.info-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.info-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  padding: 8px 16px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
}

.info-links a:hover {
  border-color: var(--color-accent);
}

/* ---------- 404 页 ---------- */
.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 48px 24px;
}

.error-content {
  text-align: center;
  max-width: 480px;
}

.error-code {
  font-size: 4rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.error-content h1 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

/* ============================================================
   5. Responsive —— 992px / 768px 断点
   ============================================================ */

@media (max-width: 992px) {
  /* 双栏改单栏 */
  .page-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .sidebar-right {
    margin-top: 32px;
  }

  .layout-shell {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .sidebar-left .page-sidebar {
    margin-bottom: 32px;
  }

  /* 三列改两列 */
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  /* 步骤条（contact） */
  .contact-page .process-steps {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  /* 页头 */
  .header-inner {
    height: 60px;
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 16px rgba(27, 42, 65, 0.08);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    gap: 0;
    padding: 8px 16px 16px;
  }

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

  .nav-list li {
    width: 100%;
  }

  .nav-list a {
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-list li:last-child a {
    border-bottom: none;
  }

  .nav-list a.is-current {
    border-bottom: 1px solid var(--color-accent);
  }

  /* 主容器 */
  .inner-main {
    padding: 24px 16px 0;
  }

  /* 页面标题区 */
  .page-header {
    padding: 24px 20px;
  }

  .page-title {
    font-size: 1.5rem;
  }

  /* hero */
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 40px 16px 32px;
  }

  .hero-content h1 {
    font-size: 1.75rem;
  }

  .hero-figure img {
    height: 220px;
  }

  .hero-announcements {
    padding: 0 16px 32px;
  }

  /* 首页各区 */
  .services-section,
  .solutions-section,
  .process-section,
  .faq-section {
    padding: 40px 16px;
  }

  /* 网格改单列 */
  .services-grid,
  .solutions-grid {
    grid-template-columns: 1fr;
  }

  .process-steps,
  .contact-page .process-steps {
    grid-template-columns: 1fr;
  }

  /* 文章卡片 */
  .article-card {
    flex-direction: column;
  }

  .article-media {
    width: 100%;
  }

  .article-media img {
    width: 100%;
    height: 160px;
  }

  /* checklist / communication 改单列 */
  .checklist,
  .communication-list {
    grid-template-columns: 1fr;
  }

  /* 页脚 */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 16px 24px;
  }

  .footer-bottom {
    padding: 16px;
  }

  /* CTA */
  .cta-section,
  .cta-block {
    padding: 32px 20px;
    margin: 32px 0;
  }

  /* 页面标题区内联媒体 */
  .page-header-inner {
    flex-direction: column;
    gap: 16px;
  }

  .content-media img {
    height: 140px;
  }

  /* 相关链接 */
  .related-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

/* 小屏微调 */
@media (max-width: 420px) {
  .logo-text {
    font-size: 1.0625rem;
  }

  .hero-content h1 {
    font-size: 1.5rem;
  }

  .service-card,
  .solution-card {
    padding: 20px;
  }

  .service-section,
  .solution-section,
  .checklist-section,
  .communication-section,
  .contact-page .process-section {
    padding: 24px 20px;
  }

  .update-list li {
    flex-direction: column;
    gap: 4px;
  }

  .update-list time {
    min-width: 0;
  }
}

/* 程序验收反馈：移动端正文优先 */
@media (max-width: 768px) {
  .site-main :is(.page-content, .main-content, .content-main) {
    order: 1;
  }

  .site-main :is(aside, .sidebar) {
    order: 2;
  }
}