/* ==========================================================================
   黑料网今日黑料 - 整站样式表
   版本: 1.0
   说明: 覆盖全站所有页面通用样式与各页面专属模块样式
   ========================================================================== */

/* ==========================================================================
   1. Base - 基础样式
   ========================================================================== */

:root {
  --color-primary: #0f1f3d;
  --color-accent: #ff6b35;
  --color-bg: #f7f8fc;
  --color-text: #333333;
  --color-text-secondary: #666666;
  --color-border: #e5e8f0;
  --color-white: #ffffff;
  --font-family: -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --container-width: 1200px;
  --content-width: 960px;
  --sidebar-width: 300px;
  --radius: 4px;
  --shadow-light: 0 2px 8px rgba(15, 31, 61, 0.06);
  --shadow-hover: 0 6px 20px rgba(15, 31, 61, 0.12);
  --transition-base: 0.25s ease;
}

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

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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, h5, h6 {
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-primary);
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  margin-bottom: 1em;
}

p:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   2. Layout - 布局骨架
   ========================================================================== */

/* 全站统一容器 */
.header-container,
.footer-container,
.section-container,
.container,
.page-container,
.layout-shell {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* 站点主体 */
.site-main {
  flex: 1 0 auto;
  width: 100%;
}

/* ==========================================================================
   3. Header - 页头
   ========================================================================== */

.site-header {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: 100;
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 20px;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
  line-height: 1.3;
}

.logo:hover {
  color: var(--color-primary);
}

/* 主导航 */
.main-nav {
  display: flex;
  align-items: center;
}

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

.nav-list li {
  margin: 0;
}

.nav-link {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius);
  line-height: 1.4;
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: var(--color-bg);
}

.nav-link.is-current {
  color: var(--color-accent);
  background-color: rgba(255, 107, 53, 0.08);
  font-weight: 600;
}

/* 汉堡按钮 - 默认隐藏 */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 10px;
  gap: 5px;
}

.toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

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

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

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

/* ==========================================================================
   4. Footer - 页脚
   ========================================================================== */

.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  margin-top: 60px;
  flex-shrink: 0;
}

.footer-container {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-top: 50px;
  padding-bottom: 40px;
}

.footer-brand .footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.footer-slogan {
  font-size: 14px;
  color: var(--color-accent);
  margin-bottom: 12px;
  font-weight: 500;
}

.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

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

.footer-links ul li,
.footer-legal ul li {
  margin-bottom: 10px;
}

.footer-links ul li a,
.footer-legal ul li a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  transition: color var(--transition-base);
}

.footer-links ul li a:hover,
.footer-legal ul li a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 18px 20px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

/* ==========================================================================
   5. Components - 通用组件
   ========================================================================== */

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition-base);
  border: 1px solid transparent;
  min-height: 44px;
  line-height: 1.4;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: #e55a2b;
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-secondary:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* 文本链接 */
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 15px;
  color: var(--color-accent);
  padding: 8px 0;
}

.text-link::after {
  content: "→";
  transition: transform var(--transition-base);
}

.text-link:hover::after {
  transform: translateX(4px);
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  padding: 0;
}

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

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

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

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

/* 页面标题区 */
.page-header {
  margin-bottom: 36px;
}

.page-title {
  font-size: 32px;
  line-height: 1.3;
  margin-bottom: 12px;
}

.page-description {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 720px;
  line-height: 1.7;
}

/* Section 标题区 */
.section-heading {
  text-align: center;
  margin-bottom: 40px;
}

.section-heading h2 {
  font-size: 28px;
  margin-bottom: 10px;
}

.section-heading p {
  font-size: 15px;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto;
}

.section-title {
  font-size: 26px;
  margin-bottom: 12px;
}

.section-intro {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 30px;
  max-width: 720px;
}

/* FAQ 折叠项 */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-white);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 44px;
  line-height: 1.5;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  font-weight: 400;
  color: var(--color-accent);
  transition: transform var(--transition-base);
}

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

.faq-item .faq-answer,
.faq-item p {
  padding: 0 20px 16px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* 侧栏通用 */
.sidebar-block {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.sidebar-block h2,
.sidebar-title {
  font-size: 17px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.sidebar-block p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

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

.sidebar-list li a {
  font-size: 14px;
  color: var(--color-text-secondary);
  display: block;
  padding: 6px 0;
  border-bottom: 1px dashed var(--color-border);
  transition: color var(--transition-base), padding-left var(--transition-base);
}

.sidebar-list li a:hover {
  color: var(--color-accent);
  padding-left: 6px;
}

.sidebar-btn {
  display: block;
  text-align: center;
  padding: 10px 20px;
  background-color: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  transition: background-color var(--transition-base);
  margin-top: 12px;
}

.sidebar-btn:hover {
  background-color: #e55a2b;
  color: var(--color-white);
}

/* 相关链接条 */
.related-links {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 24px 20px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  border-top: 1px solid var(--color-border);
}

.related-links-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  margin-right: 4px;
}

.related-links-item {
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: all var(--transition-base);
}

.related-links-item:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background-color: rgba(255, 107, 53, 0.05);
}

/* 图片容器 */
figure {
  margin: 0;
}

figure img {
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

figcaption {
  font-size: 13px;
  color: var(--color-text-secondary);
  text-align: center;
  padding: 8px 0 0;
  line-height: 1.5;
}

/* ==========================================================================
   6. Pages - 首页
   ========================================================================== */

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

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  padding-top: 64px;
  padding-bottom: 64px;
}

.hero-content h1 {
  font-size: 36px;
  line-height: 1.3;
  margin-bottom: 16px;
}

.hero-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  max-width: 480px;
}

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

.hero-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  width: 100%;
  height: auto;
}

/* 信任条 */
.trust-bar {
  background-color: var(--color-primary);
}

.trust-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 60px;
  padding-top: 24px;
  padding-bottom: 24px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-white);
}

.trust-icon {
  font-size: 20px;
  color: var(--color-accent);
}

.trust-text {
  font-size: 15px;
  font-weight: 500;
}

/* 核心服务概览 */
.service-overview {
  padding: 64px 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.card-icon {
  font-size: 28px;
  margin-bottom: 14px;
  color: var(--color-accent);
}

.service-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.service-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 14px;
}

.card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.card-link::after {
  content: "→";
  transition: transform var(--transition-base);
}

.card-link:hover::after {
  transform: translateX(4px);
}

/* 服务流程预览 */
.process-preview {
  background-color: var(--color-white);
  padding: 64px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 32px;
  counter-reset: step-counter;
}

.step-item {
  text-align: center;
  padding: 24px 16px;
  background-color: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-primary);
  color: var(--color-white);
  font-size: 16px;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 14px;
}

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

.step-item p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin: 0;
}

.section-action {
  text-align: center;
  margin-top: 8px;
}

/* 行业观察快讯 */
.insights-preview {
  padding: 64px 0;
}

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

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

.insight-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.insight-item h3 {
  font-size: 16px;
  margin-bottom: 10px;
  line-height: 1.5;
}

.insight-item h3 a {
  color: var(--color-primary);
}

.insight-item h3 a:hover {
  color: var(--color-accent);
}

.insight-item p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* FAQ 摘要 */
.faq-preview {
  background-color: var(--color-white);
  padding: 64px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto 32px;
}

/* 关于我们简述 */
.about-preview {
  padding: 64px 0;
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  width: 100%;
  height: auto;
}

.about-content h2 {
  font-size: 26px;
  margin-bottom: 16px;
}

.about-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-content .btn {
  margin-top: 8px;
}

/* CTA 区域 */
.cta-section {
  padding: 0 0 64px;
}

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

.cta-box h2 {
  color: var(--color-white);
  font-size: 26px;
  margin-bottom: 12px;
}

.cta-box p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
  margin-bottom: 24px;
}

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

.cta-box .btn-outline {
  border-color: var(--color-white);
  color: var(--color-white);
}

.cta-box .btn-outline:hover {
  background-color: var(--color-white);
  color: var(--color-primary);
}

/* ==========================================================================
   7. Pages - 内页通用布局
   ========================================================================== */

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

/* 双列布局：主内容 + 侧栏（先主后侧） */
.layout-shell {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: 40px;
  align-items: start;
}

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

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

/* 另一套双列布局（insights/faq） */
.page-layout {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: 40px;
  align-items: start;
}

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

/* ==========================================================================
   8. Pages - 服务介绍页
   ========================================================================== */

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

.service-matrix > h2 {
  font-size: 24px;
  margin-bottom: 20px;
}

.content-media {
  margin-bottom: 24px;
}

.content-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-light);
  width: 100%;
  height: auto;
}

.content-media-inline figcaption {
  font-size: 13px;
  color: var(--color-text-secondary);
  text-align: center;
  padding-top: 8px;
}

.service-item {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 20px;
  transition: box-shadow var(--transition-base);
}

.service-item:hover {
  box-shadow: var(--shadow-hover);
}

.service-text h3 {
  font-size: 20px;
  margin-bottom: 12px;
}

.service-text p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.service-scene {
  font-size: 14px;
  color: var(--color-primary);
  background-color: rgba(15, 31, 61, 0.04);
  padding: 10px 14px;
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 12px;
}

.service-deliver {
  font-size: 13px;
  color: var(--color-text-secondary);
  border-top: 1px dashed var(--color-border);
  padding-top: 12px;
}

.service-mode {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 32px;
}

.service-mode h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

.service-mode p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.service-scenario {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 32px;
}

.service-scenario h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

.scenario-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.scenario-list li {
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: 10px 14px;
  background-color: var(--color-bg);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  line-height: 1.5;
}

.service-faq-entry {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
}

.service-faq-entry h2 {
  font-size: 22px;
  margin-bottom: 12px;
}

.service-faq-entry p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

/* 侧栏 */
.sidebar-about .text-link {
  font-size: 14px;
}

/* ==========================================================================
   9. Pages - 合作流程页
   ========================================================================== */

.page-container {
  max-width: var(--content-width);
}

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

.timeline-list {
  position: relative;
  padding-left: 0;
}

.timeline-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 20px;
  padding-bottom: 32px;
  position: relative;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 48px;
  bottom: 0;
  width: 2px;
  background-color: var(--color-border);
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-marker {
  position: relative;
  z-index: 1;
}

.timeline-marker .step-num {
  width: 56px;
  height: 56px;
  font-size: 18px;
}

.timeline-content {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.timeline-content h3 {
  font-size: 18px;
  margin-bottom: 10px;
}

.timeline-content p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}

.deliverable {
  font-size: 13px;
  color: var(--color-primary);
  background-color: var(--color-bg);
  border-radius: var(--radius);
  padding: 8px 12px;
  display: inline-block;
  margin-top: 4px;
}

/* 准备清单 */
.preparation-section {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 48px;
}

.preparation-list {
  margin-bottom: 24px;
}

.preparation-list li {
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: 8px 0 8px 24px;
  position: relative;
  line-height: 1.6;
}

.preparation-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.preparation-figure img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-light);
  width: 100%;
  height: auto;
}

/* 下一步引导 */
.next-step-section {
  text-align: center;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
}

.next-step-section p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

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

/* ==========================================================================
   10. Pages - 常见问题页
   ========================================================================== */

.faq-hot {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 32px;
}

.faq-hot > h2 {
  font-size: 20px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.faq-hot-list {
  margin-bottom: 0;
}

.faq-group {
  margin-bottom: 32px;
}

.faq-group > h2 {
  font-size: 20px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.faq-group-list .faq-item {
  margin-bottom: 10px;
}

.faq-note {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-top: 24px;
}

.faq-note h2 {
  font-size: 17px;
  margin-bottom: 10px;
}

.faq-note p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* FAQ 侧栏 */
.cat-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cat-tags li a {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--color-text-secondary);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: all var(--transition-base);
}

.cat-tags li a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background-color: rgba(255, 107, 53, 0.05);
}

.sidebar-guide .btn {
  display: block;
  margin-bottom: 10px;
  width: 100%;
}

.sidebar-figure img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-light);
  width: 100%;
  height: auto;
}

.sidebar-figure figcaption {
  font-size: 13px;
  color: var(--color-text-secondary);
  text-align: center;
  padding-top: 8px;
}

/* ==========================================================================
   11. Pages - 行业观察页
   ========================================================================== */

.articles-list {
  margin-bottom: 32px;
}

.article-card {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  transition: box-shadow var(--transition-base);
}

.article-card:hover {
  box-shadow: var(--shadow-hover);
}

.article-media {
  overflow: hidden;
  border-radius: var(--radius);
}

.article-media img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius);
}

.article-body h3 {
  font-size: 17px;
  margin-bottom: 8px;
  line-height: 1.5;
}

.article-body h3 a {
  color: var(--color-primary);
}

.article-body h3 a:hover {
  color: var(--color-accent);
}

.article-excerpt {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}

.article-meta {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* 互动提示 */
.interaction-tip {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.interaction-tip p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.interaction-tip a {
  color: var(--color-accent);
  font-weight: 500;
}

/* 话题标签 */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list li a {
  display: inline-block;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--color-text-secondary);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: all var(--transition-base);
}

.tag-list li a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background-color: rgba(255, 107, 53, 0.05);
}

/* 推荐阅读 */
.recommend-list li {
  margin-bottom: 10px;
}

.recommend-list li a {
  font-size: 14px;
  color: var(--color-text-secondary);
  display: block;
  padding: 6px 0;
  border-bottom: 1px dashed var(--color-border);
  transition: color var(--transition-base), padding-left var(--transition-base);
  line-height: 1.5;
}

.recommend-list li a:hover {
  color: var(--color-accent);
  padding-left: 6px;
}

/* 更新说明 */
.update-note p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* ==========================================================================
   12. Pages - 关于我们页
   ========================================================================== */

.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 48px;
}

.intro-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  width: 100%;
  height: auto;
}

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

.intro-content p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 14px;
}

.about-values {
  margin-bottom: 48px;
}

.about-values > h2 {
  font-size: 24px;
  margin-bottom: 24px;
  text-align: center;
}

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

.value-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.value-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.value-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

.about-principles {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 48px;
}

.about-principles > h2 {
  font-size: 24px;
  margin-bottom: 20px;
}

.principles-list {
  counter-reset: principle-counter;
}

.principles-list li {
  padding: 16px 0 16px 48px;
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

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

.principles-list li::before {
  counter-increment: principle-counter;
  content: counter(principle-counter);
  position: absolute;
  left: 0;
  top: 16px;
  width: 32px;
  height: 32px;
  background-color: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

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

.principles-list p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin: 0;
}

.about-compliance {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 40px;
}

.about-compliance h2 {
  font-size: 20px;
  margin-bottom: 14px;
}

.about-compliance p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
}

.about-cta {
  text-align: center;
  padding: 24px 0;
}

.about-cta p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.about-cta .btn {
  margin: 0 8px;
}

/* ==========================================================================
   13. Pages - 隐私政策页 / 服务条款页
   ========================================================================== */

.privacy-content {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 32px;
}

.privacy-section {
  margin-bottom: 36px;
}

.privacy-section:last-child {
  margin-bottom: 0;
}

.privacy-section h2 {
  font-size: 22px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.privacy-section p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.privacy-list {
  margin: 12px 0;
}

.privacy-list li {
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: 6px 0 6px 20px;
  position: relative;
  line-height: 1.7;
}

.privacy-list li::before {
  content: "•";
  position: absolute;
  left: 4px;
  color: var(--color-accent);
  font-weight: 700;
}

.privacy-note {
  background-color: var(--color-bg);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-top: 24px;
}

.privacy-note p {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 0;
}

.privacy-figure {
  max-width: 640px;
  margin: 0 auto;
}

.privacy-figure img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-light);
  width: 100%;
  height: auto;
}

.privacy-figure figcaption {
  font-size: 13px;
  color: var(--color-text-secondary);
  text-align: center;
  padding-top: 8px;
}

/* 服务条款 */
.terms-content {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 32px;
}

.terms-section {
  margin-bottom: 36px;
}

.terms-section:last-child {
  margin-bottom: 0;
}

.terms-section h2 {
  font-size: 22px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.terms-section p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}

.terms-figure {
  max-width: 640px;
  margin: 0 auto;
}

.terms-figure img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-light);
  width: 100%;
  height: auto;
}

.terms-figure figcaption {
  font-size: 13px;
  color: var(--color-text-secondary);
  text-align: center;
  padding-top: 8px;
}

/* ==========================================================================
   14. Pages - 404 错误页
   ========================================================================== */

.error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  padding: 40px 20px;
}

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

.error-content h1 {
  font-size: 36px;
  margin-bottom: 16px;
}

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

.error-desc {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.error-btn {
  display: inline-block;
  padding: 12px 32px;
  background-color: var(--color-accent);
  color: var(--color-white);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.error-btn:hover {
  background-color: #e55a2b;
  color: var(--color-white);
  transform: translateY(-2px);
}

/* ==========================================================================
   15. Responsive - 响应式
   ========================================================================== */

/* 平板及以下 */
@media (max-width: 1024px) {
  .hero-container {
    gap: 32px;
    padding-top: 48px;
    padding-bottom: 48px;
  }

  .hero-content h1 {
    font-size: 30px;
  }

  .layout-shell,
  .page-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .page-sidebar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .sidebar-block {
    margin-bottom: 0;
  }

  .sidebar-figure {
    grid-column: 1 / -1;
  }

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

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

/* 移动端 */
@media (max-width: 768px) {
  .header-container {
    min-height: 60px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: static;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 16px rgba(15, 31, 61, 0.08);
    gap: 0;
    z-index: 99;
  }

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

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

  .nav-link {
    padding: 14px 12px;
    font-size: 16px;
    border-radius: var(--radius);
    width: 100%;
  }

  .nav-link.is-current {
    background-color: rgba(255, 107, 53, 0.08);
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 40px;
    padding-bottom: 40px;
  }

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

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

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

  .trust-container {
    gap: 16px;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 20px;
    padding-bottom: 20px;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

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

  .insights-list {
    grid-template-columns: 1fr;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .cta-box {
    padding: 32px 24px;
  }

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

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

  .footer-container {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 40px;
    padding-bottom: 32px;
  }

  .page-sidebar {
    grid-template-columns: 1fr;
  }

  .scenario-list {
    grid-template-columns: 1fr;
  }

  .article-card {
    grid-template-columns: 1fr;
  }

  .article-media img {
    height: 180px;
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .about-intro {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .timeline-item {
    grid-template-columns: 44px 1fr;
    gap: 16px;
  }

  .timeline-item::before {
    left: 21px;
  }

  .timeline-marker .step-num {
    width: 44px;
    height: 44px;
    font-size: 16px;
  }

  .privacy-content,
  .terms-content {
    padding: 24px 20px;
  }

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

  .next-step-actions .btn {
    width: 100%;
  }

  .about-cta .btn {
    display: block;
    margin: 0 0 12px;
    width: 100%;
  }

  .related-links {
    padding: 20px;
  }

  .related-links-label {
    width: 100%;
  }

  .breadcrumb {
    margin-bottom: 20px;
  }

  .page-header {
    margin-bottom: 28px;
  }

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

  .section-heading h2 {
    font-size: 24px;
  }

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

  .inner-main {
    padding-top: 28px;
  }
}

/* 小屏手机 */
@media (max-width: 480px) {
  .logo {
    font-size: 18px;
  }

  .section-container,
  .header-container,
  .footer-container,
  .container,
  .page-container,
  .layout-shell {
    padding-left: 16px;
    padding-right: 16px;
  }

  .hero-content h1 {
    font-size: 24px;
  }

  .service-card {
    padding: 20px;
  }

  .step-item {
    padding: 20px 14px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    padding-left: 0;
  }

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

  .timeline-marker {
    margin-bottom: 8px;
  }

  .timeline-marker .step-num {
    width: 40px;
    height: 40px;
    font-size: 15px;
  }

  .preparation-section {
    padding: 24px 20px;
  }

  .service-item {
    padding: 20px;
  }

  .service-mode,
  .service-scenario,
  .service-faq-entry {
    padding: 20px;
  }

  .faq-item summary {
    padding: 14px 40px 14px 16px;
    font-size: 14px;
  }

  .sidebar-block {
    padding: 20px;
  }

  .article-card {
    padding: 16px;
  }

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

  .about-principles {
    padding: 24px 20px;
  }

  .principles-list li {
    padding-left: 40px;
  }

  .principles-list li::before {
    width: 28px;
    height: 28px;
    font-size: 13px;
  }

  .value-card {
    padding: 20px;
  }
}