/* ============================================================
   base — 全局基础样式
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
  background: #F4F1EA;
  color: #101418;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

a {
  color: #1E5E47;
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #2E8B67;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4 {
  line-height: 1.3;
  font-weight: 700;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 18px;
}

p {
  font-size: 16px;
  color: #101418;
}

/* 滚动出现动画（不影响初始可见性） */
@media (prefers-reduced-motion: no-preference) {
  .service-card,
  .case-item,
  .process-step,
  .industry-card,
  .deliverable-item,
  .timeline-note,
  .advice-item,
  .example-card,
  .mistake-item,
  .principle-item {
    animation: fadeInUp 0.5s ease both;
  }

  .service-card:nth-child(2),
  .case-item:nth-child(2),
  .process-step:nth-child(2),
  .industry-card:nth-child(2),
  .deliverable-item:nth-child(2),
  .timeline-note:nth-child(2),
  .advice-item:nth-child(2),
  .example-card:nth-child(2),
  .mistake-item:nth-child(2),
  .principle-item:nth-child(2) {
    animation-delay: 0.08s;
  }

  .service-card:nth-child(3),
  .case-item:nth-child(3),
  .process-step:nth-child(3),
  .industry-card:nth-child(3),
  .deliverable-item:nth-child(3),
  .timeline-note:nth-child(3),
  .advice-item:nth-child(3),
  .example-card:nth-child(3),
  .mistake-item:nth-child(3),
  .principle-item:nth-child(3) {
    animation-delay: 0.16s;
  }

  .service-card:nth-child(4),
  .industry-card:nth-child(4),
  .deliverable-item:nth-child(4),
  .mistake-item:nth-child(4) {
    animation-delay: 0.24s;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   layout — 全站骨架布局
   ============================================================ */
.site-header {
  background: #101418;
  border-bottom: 1px solid #2E8B67;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  flex-shrink: 0;
}

.brand-name {
  font-size: 22px;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.5px;
}

.brand-tag {
  font-size: 12px;
  color: #D8DDD6;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  display: inline-block;
  padding: 8px 14px;
  font-size: 15px;
  color: #D8DDD6;
  border-radius: 4px;
  transition: background 0.2s ease, color 0.2s ease;
  min-height: 44px;
  line-height: 28px;
}

.nav-link:hover {
  color: #FFFFFF;
  background: rgba(46, 139, 103, 0.2);
}

.nav-link.is-current {
  color: #FFFFFF;
  background: #2E8B67;
}

.header-cta {
  display: inline-block;
  padding: 10px 20px;
  background: #2E8B67;
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 600;
  border-radius: 6px;
  white-space: nowrap;
  min-height: 44px;
  line-height: 24px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.header-cta:hover {
  background: #1E5E47;
  color: #FFFFFF;
  transform: translateY(-1px);
}

.site-main {
  flex: 1;
}

.site-footer {
  background: #101418;
  color: #D8DDD6;
  margin-top: 48px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-col h2 {
  font-size: 16px;
  color: #FFFFFF;
  margin-bottom: 14px;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul a {
  color: #D8DDD6;
  font-size: 14px;
}

.footer-col ul a:hover {
  color: #2E8B67;
}

.footer-brand {
  font-size: 18px;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.brand-col p:last-child {
  font-size: 14px;
  color: #D8DDD6;
  line-height: 1.7;
}

.footer-bottom {
  border-top: 1px solid #2E8B67;
  padding: 14px 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: #D8DDD6;
}

/* 面包屑 */
.breadcrumb {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px 0;
  font-size: 14px;
  color: #6B6F76;
}

.breadcrumb a {
  color: #1E5E47;
}

.breadcrumb a:hover {
  color: #2E8B67;
}

.breadcrumb-sep {
  margin: 0 8px;
  color: #6B6F76;
}

.breadcrumb-current {
  color: #6B6F76;
}

.page-header {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 20px;
}

.page-title {
  font-size: 36px;
  color: #101418;
  margin-bottom: 8px;
}

.page-title-area {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 24px;
}

.page-intro,
.page-lead {
  font-size: 17px;
  color: #6B6F76;
  max-width: 720px;
}

/* 内页主容器 */
.inner-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   components — 通用组件
   ============================================================ */
/* 文本链接 */
.text-link {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: #1E5E47;
  padding: 8px 0;
  min-height: 44px;
  line-height: 28px;
}

.text-link:hover {
  color: #2E8B67;
}

.text-link::after {
  content: ' →';
}

/* 侧栏通用 */
.sidebar,
.aside-sidebar,
.page-aside {
  width: 260px;
  flex-shrink: 0;
}

.sidebar-inner,
.sidebar-block {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 20px;
}

.sidebar h2,
.aside-sidebar h2,
.page-aside h2 {
  font-size: 18px;
  color: #101418;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid #D8DDD6;
}

.sidebar-links li,
.aside-links li {
  margin-bottom: 10px;
}

.sidebar-links a,
.aside-links a {
  font-size: 15px;
  color: #1E5E47;
  display: block;
  padding: 6px 0;
  min-height: 44px;
  line-height: 32px;
}

.sidebar-links a:hover,
.aside-links a:hover {
  color: #2E8B67;
}

/* 相关链接 */
.related-links {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid #D8DDD6;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.related-links-label {
  font-size: 15px;
  font-weight: 600;
  color: #101418;
}

.related-links-item {
  display: inline-block;
  padding: 8px 16px;
  background: #F4F1EA;
  border: 1px solid #D8DDD6;
  border-radius: 6px;
  font-size: 14px;
  color: #1E5E47;
  min-height: 44px;
  line-height: 26px;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.related-links-item:hover {
  background: #FFFFFF;
  border-color: #2E8B67;
  color: #2E8B67;
}

/* FAQ 手风琴 */
.faq-item {
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  background: #FFFFFF;
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-item summary {
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  color: #101418;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  transition: color 0.2s ease;
}

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

.faq-item summary::after {
  content: '+';
  font-size: 22px;
  font-weight: 400;
  color: #2E8B67;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

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

.faq-item summary:hover {
  color: #1E5E47;
}

.faq-answer {
  padding: 0 20px 16px;
  border-top: 1px solid #F4F1EA;
}

.faq-answer p {
  padding-top: 12px;
  font-size: 15px;
  color: #6B6F76;
}

/* 移动端底部导航 */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #101418;
  border-top: 1px solid #2E8B67;
  z-index: 200;
  padding: 0 8px;
  justify-content: space-around;
}

.bottom-nav-link,
.mobile-nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 6px;
  font-size: 12px;
  color: #D8DDD6;
  min-height: 48px;
  min-width: 48px;
  gap: 2px;
  text-align: center;
}

.bottom-nav-link.active,
.bottom-nav-link.is-active,
.mobile-nav-link.is-active,
.mobile-nav-link.is-current {
  color: #2E8B67;
  font-weight: 600;
}

/* ============================================================
   pages — 首页
   ============================================================ */
.site-home {
  background: #F4F1EA;
}

/* Hero */
.hero-block {
  background: #101418;
  color: #FFFFFF;
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px 24px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.hero-text h1 {
  font-size: 40px;
  color: #FFFFFF;
  margin-bottom: 16px;
  line-height: 1.2;
}

.hero-slogan {
  font-size: 20px;
  color: #2E8B67;
  font-weight: 600;
  margin-bottom: 12px;
}

.hero-desc {
  font-size: 16px;
  color: #D8DDD6;
  margin-bottom: 24px;
  max-width: 520px;
}

.hero-btn {
  display: inline-block;
  padding: 12px 28px;
  background: #2E8B67;
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 600;
  border-radius: 6px;
  min-height: 48px;
  line-height: 24px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.hero-btn:hover {
  background: #1E5E47;
  color: #FFFFFF;
  transform: translateY(-1px);
}

.hero-media {
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #1E5E47;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 首页三栏布局 */
.home-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px;
  display: grid;
  grid-template-columns: 220px 1fr 260px;
  gap: 24px;
  align-items: start;
}

/* 左栏服务索引 */
.service-rank {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 20px;
}

.service-rank h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.service-rank > p {
  font-size: 14px;
  color: #6B6F76;
  margin-bottom: 16px;
}

.rank-list li {
  border-bottom: 1px solid #F4F1EA;
  padding: 10px 0;
}

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

.rank-list a {
  display: block;
  font-size: 15px;
  color: #101418;
  padding: 6px 0;
  min-height: 44px;
  line-height: 32px;
  transition: color 0.2s ease;
}

.rank-list a:hover {
  color: #2E8B67;
}

/* 中栏 */
.home-center {
  min-width: 0;
}

.service-highlight {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
}

.service-highlight h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.section-intro {
  font-size: 15px;
  color: #6B6F76;
  margin-bottom: 20px;
}

.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.service-card {
  background: #F4F1EA;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 16px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.service-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(16, 20, 24, 0.08);
  border-color: #2E8B67;
}

.service-card figure {
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 12px;
  aspect-ratio: 16 / 9;
  background: #D8DDD6;
}

.service-card figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.service-card p {
  font-size: 14px;
  color: #6B6F76;
  margin-bottom: 10px;
}

.service-card a {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: #1E5E47;
  min-height: 44px;
  line-height: 44px;
}

.service-card a:hover {
  color: #2E8B67;
}

/* 案例摘要 */
.case-summary {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 24px;
}

.case-summary h2 {
  font-size: 22px;
  margin-bottom: 8px;
}

.case-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.case-item {
  background: #F4F1EA;
  border-radius: 8px;
  padding: 16px;
  border: 1px solid #D8DDD6;
}

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

.case-item p {
  font-size: 14px;
  color: #6B6F76;
}

/* 右栏 */
.home-right {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.faq-mini,
.guide-entry {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 20px;
}

.faq-mini h2,
.guide-entry h2 {
  font-size: 18px;
  margin-bottom: 8px;
}

.faq-mini > p,
.guide-entry > p {
  font-size: 14px;
  color: #6B6F76;
  margin-bottom: 12px;
}

.faq-mini .faq-item summary {
  font-size: 15px;
  padding: 12px 14px;
}

.faq-mini .faq-answer p {
  font-size: 14px;
}

.guide-entry ul li {
  padding: 8px 0;
  border-bottom: 1px solid #F4F1EA;
}

.guide-entry ul li:last-child {
  border-bottom: none;
}

.guide-entry ul a {
  font-size: 15px;
  color: #1E5E47;
  display: block;
  min-height: 44px;
  line-height: 28px;
}

.guide-entry ul a:hover {
  color: #2E8B67;
}

/* 流程横条 */
.process-strip {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
  background: #F4F1EA;
}

.process-strip h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin: 20px 0;
}

.process-step {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 16px;
  text-align: left;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.process-step:hover {
  border-color: #2E8B67;
  transform: translateY(-2px);
}

.step-num {
  display: inline-block;
  width: 28px;
  height: 28px;
  background: #2E8B67;
  color: #FFFFFF;
  border-radius: 50%;
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  line-height: 28px;
  margin-bottom: 10px;
}

.process-step h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.process-step p {
  font-size: 14px;
  color: #6B6F76;
}

/* 合作路径 */
.cooperation-entry {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.coop-col {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 24px;
}

.coop-col h2 {
  font-size: 20px;
  margin-bottom: 10px;
}

.coop-col p {
  font-size: 15px;
  color: #6B6F76;
  margin-bottom: 16px;
}

.coop-col a {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: #1E5E47;
  min-height: 44px;
  line-height: 44px;
}

.coop-col a:hover {
  color: #2E8B67;
}

/* ============================================================
   pages — 服务项目页
   ============================================================ */
.page-services {
  background: #F4F1EA;
}

.layout-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 32px;
  align-items: start;
}

.service-decision-block {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 32px;
}

.service-decision-block h2 {
  font-size: 22px;
  margin-bottom: 12px;
}

.service-decision-block p {
  font-size: 15px;
  color: #6B6F76;
  margin-bottom: 10px;
}

.service-decision-block p:last-child {
  margin-bottom: 0;
}

.service-item-block {
  margin-bottom: 40px;
  scroll-margin-top: 80px;
}

.service-item-block > h2 {
  font-size: 26px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid #D8DDD6;
}

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

.service-card p {
  font-size: 15px;
  color: #6B6F76;
  margin-bottom: 12px;
}

.service-card ul {
  margin-bottom: 16px;
  padding-left: 0;
}

.service-card ul li {
  font-size: 15px;
  color: #101418;
  padding: 6px 0 6px 20px;
  position: relative;
}

.service-card ul li::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 16px;
  width: 6px;
  height: 6px;
  background: #2E8B67;
  border-radius: 50%;
}

.service-card > a {
  display: inline-block;
  font-size: 15px;
  font-weight: 600;
  color: #1E5E47;
  min-height: 44px;
  line-height: 44px;
}

.service-card > a:hover {
  color: #2E8B67;
}

.service-image-block {
  margin-top: 16px;
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #D8DDD6;
}

.service-image-block img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-image-block figcaption {
  padding: 10px 0;
  font-size: 14px;
  color: #6B6F76;
}

.service-advice-block {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 32px;
}

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

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

.advice-item {
  background: #F4F1EA;
  border-radius: 8px;
  padding: 16px;
  border: 1px solid #D8DDD6;
}

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

.advice-item p {
  font-size: 14px;
  color: #6B6F76;
}

/* ============================================================
   pages — 案例与交付页
   ============================================================ */
.page-cases {
  background: #F4F1EA;
}

.cases-article {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 32px;
  align-items: start;
}

.cases-summary {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 32px;
}

.cases-summary h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.cases-summary p {
  font-size: 15px;
  color: #6B6F76;
}

.industry-match,
.deliverables-list,
.timeline-notes {
  margin-bottom: 40px;
}

.industry-match h2,
.deliverables-list h2,
.timeline-notes h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.section-desc {
  font-size: 15px;
  color: #6B6F76;
  margin-bottom: 16px;
}

.industry-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.industry-card {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 16px;
}

.industry-card h3 {
  font-size: 17px;
  margin-bottom: 6px;
}

.industry-card > p {
  font-size: 14px;
  color: #6B6F76;
  margin-bottom: 12px;
}

.case-figure {
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #D8DDD6;
}

.case-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.case-figure figcaption {
  padding: 8px 0;
  font-size: 13px;
  color: #6B6F76;
}

.deliverable-item {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 12px;
}

.deliverable-item h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.deliverable-item p {
  font-size: 14px;
  color: #6B6F76;
}

.timeline-note {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 12px;
}

.timeline-note h3 {
  font-size: 16px;
  margin-bottom: 4px;
}

.timeline-note p {
  font-size: 14px;
  color: #6B6F76;
}

/* ============================================================
   pages — 制作流程页
   ============================================================ */
.page-process {
  background: #F4F1EA;
}

.conclusion-summary {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 32px;
}

.conclusion-summary h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.conclusion-summary > p {
  font-size: 15px;
  color: #6B6F76;
  margin-bottom: 20px;
}

.conclusion-summary .process-strip {
  padding: 0;
}

.conclusion-summary .process-step {
  text-align: center;
}

.conclusion-summary .step-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: #101418;
}

.process-table-section {
  margin-bottom: 40px;
}

.process-table-section h2 {
  font-size: 24px;
  margin-bottom: 8px;
}

.process-node-block {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 16px;
}

.process-node-block h3 {
  font-size: 17px;
  margin-bottom: 12px;
  color: #101418;
}

.node-detail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.node-row {
  padding: 10px;
  background: #F4F1EA;
  border-radius: 6px;
}

.node-row dt {
  font-size: 13px;
  font-weight: 600;
  color: #1E5E47;
  margin-bottom: 4px;
}

.node-row dd {
  font-size: 14px;
  color: #101418;
  line-height: 1.6;
}

.schedule-note {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 32px;
}

.schedule-note h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

.schedule-list li {
  font-size: 15px;
  padding: 8px 0;
  border-bottom: 1px solid #F4F1EA;
  display: flex;
  gap: 8px;
}

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

.schedule-list strong {
  color: #1E5E47;
  flex-shrink: 0;
}

.schedule-closing {
  font-size: 15px;
  color: #6B6F76;
  margin-top: 12px;
}

/* ============================================================
   pages — 视频营销指南页
   ============================================================ */
.page-guide {
  background: #F4F1EA;
}

.layout-with-aside {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 32px;
  align-items: start;
}

.page-title-block {
  margin-bottom: 24px;
}

.article-hero {
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 16 / 7;
  background: #D8DDD6;
  margin-top: 16px;
}

.article-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.conclusion-summary {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 32px;
}

.conclusion-summary h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.conclusion-summary p {
  font-size: 15px;
  color: #6B6F76;
}

.principle-section,
.example-section,
.mistake-section,
.checklist-section {
  margin-bottom: 40px;
}

.principle-section h2,
.example-section h2,
.mistake-section h2,
.checklist-section h2 {
  font-size: 24px;
  margin-bottom: 16px;
}

.principle-item {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 12px;
}

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

.principle-item p {
  font-size: 15px;
  color: #6B6F76;
}

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

.example-card {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 20px;
}

.example-card h3 {
  font-size: 16px;
  margin-bottom: 6px;
}

.example-card p {
  font-size: 14px;
  color: #6B6F76;
}

.mistake-item {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 12px;
}

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

.mistake-item p {
  font-size: 15px;
  color: #6B6F76;
}

.checklist-section {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 24px;
}

.checklist {
  margin-bottom: 16px;
}

.checklist li {
  font-size: 15px;
  padding: 8px 0 8px 28px;
  position: relative;
  border-bottom: 1px solid #F4F1EA;
}

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

.checklist li::before {
  content: '✓';
  position: absolute;
  left: 4px;
  top: 8px;
  color: #2E8B67;
  font-weight: 700;
}

.checklist-note {
  font-size: 14px;
  color: #6B6F76;
  font-style: italic;
}

/* ============================================================
   pages — 常见问题页
   ============================================================ */
.page-faq {
  background: #F4F1EA;
}

.page-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 32px;
  align-items: start;
}

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

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

.cooperation-checklist {
  background: #FFFFFF;
  border: 1px solid #D8DDD6;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 32px;
}

.cooperation-checklist h2 {
  font-size: 20px;
  margin-bottom: 8px;
}

.cooperation-checklist > p {
  font-size: 15px;
  color: #6B6F76;
  margin-bottom: 12px;
}

.checklist-list {
  margin-bottom: 12px;
}

.checklist-list li {
  font-size: 15px;
  padding: 8px 0;
  border-bottom: 1px solid #F4F1EA;
  display: flex;
  gap: 8px;
}

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

.checklist-list strong {
  color: #1E5E47;
  flex-shrink: 0;
}

.cooperation-checklist > p:last-child {
  margin-bottom: 0;
}

/* ============================================================
   pages — 404 页
   ============================================================ */
.site-error {
  background: #F4F1EA;
}

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

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

.error-code {
  font-size: 72px;
  font-weight: 700;
  color: #2E8B67;
  line-height: 1;
  margin-bottom: 16px;
}

.error-block h1 {
  font-size: 28px;
  margin-bottom: 12px;
}

.error-desc {
  font-size: 16px;
  color: #6B6F76;
  margin-bottom: 24px;
}

.error-btn {
  display: inline-block;
  padding: 12px 28px;
  background: #2E8B67;
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 600;
  border-radius: 6px;
  min-height: 48px;
  line-height: 24px;
  margin-bottom: 12px;
  transition: background 0.2s ease;
}

.error-btn:hover {
  background: #1E5E47;
  color: #FFFFFF;
}

.error-link {
  display: inline-block;
  font-size: 15px;
  color: #1E5E47;
  padding: 8px 16px;
  min-height: 44px;
  line-height: 28px;
}

.error-link:hover {
  color: #2E8B67;
}

/* ============================================================
   responsive — 响应式断点
   ============================================================ */
/* 桌面端 1024 断点 */
@media (max-width: 1024px) {
  .header-inner {
    padding: 12px 20px;
    gap: 16px;
  }

  .nav-link {
    padding: 8px 10px;
    font-size: 14px;
  }

  .hero-inner {
    padding: 48px 20px;
    gap: 32px;
  }

  .home-layout {
    padding: 40px 20px;
    grid-template-columns: 200px 1fr 240px;
    gap: 20px;
  }

  .process-strip,
  .cooperation-entry {
    padding-left: 20px;
    padding-right: 20px;
  }

  .inner-main,
  .breadcrumb,
  .page-header,
  .page-title-area {
    padding-left: 20px;
    padding-right: 20px;
  }

  .layout-shell,
  .layout-with-aside,
  .page-layout {
    padding-left: 20px;
    padding-right: 20px;
    gap: 24px;
  }

  .footer-inner {
    padding: 40px 20px 28px;
    gap: 24px;
  }

  .footer-bottom {
    padding-left: 20px;
    padding-right: 20px;
  }

  .process-list {
    gap: 12px;
  }

  .process-step {
    padding: 14px;
  }

  .node-detail {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

/* 平板 / 手机 768 断点 */
@media (max-width: 768px) {
  .header-inner {
    flex-wrap: wrap;
    padding: 12px 16px;
  }

  .brand-logo {
    margin-right: auto;
  }

  .main-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding-top: 8px;
    gap: 2px;
  }

  .nav-link {
    white-space: nowrap;
    padding: 8px 12px;
    font-size: 14px;
  }

  .header-cta {
    padding: 8px 14px;
    font-size: 14px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    padding: 40px 16px;
    gap: 24px;
  }

  .hero-text h1 {
    font-size: 32px;
  }

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

  .home-layout {
    grid-template-columns: 1fr;
    padding: 32px 16px;
    gap: 24px;
  }

  .sidebar-left {
    order: 2;
  }

  .home-center {
    order: 1;
  }

  .home-right {
    order: 3;
  }

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

  .case-cols {
    grid-template-columns: 1fr;
  }

  .process-list {
    grid-template-columns: repeat(5, 1fr);
    overflow-x: auto;
  }

  .process-step {
    min-width: 140px;
  }

  .cooperation-entry {
    grid-template-columns: 1fr;
    padding: 0 16px 32px;
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    padding: 32px 16px 24px;
  }

  .footer-bottom {
    padding: 12px 16px;
  }

  .breadcrumb,
  .page-header,
  .page-title-area {
    padding-left: 16px;
    padding-right: 16px;
  }

  .page-title {
    font-size: 28px;
  }

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

  .layout-shell,
  .layout-with-aside,
  .page-layout {
    grid-template-columns: 1fr;
    padding: 0 16px;
  }

  .sidebar,
  .aside-sidebar,
  .page-aside {
    width: 100%;
    order: 2;
  }

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

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

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

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

  .node-detail {
    grid-template-columns: 1fr;
  }

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

  /* 移动端底部导航显示 */
  .mobile-bottom-nav {
    display: flex;
  }

  body {
    padding-bottom: 56px;
  }

  .hero-btn,
  .header-cta,
  .nav-link,
  .text-link,
  .related-links-item,
  .bottom-nav-link,
  .mobile-nav-link,
  .error-btn,
  .error-link,
  .service-card a,
  .coop-col a,
  .service-card > a {
    min-height: 44px;
  }
}

/* 手机 480 断点 */
@media (max-width: 480px) {
  .header-inner {
    padding: 10px 12px;
  }

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

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

  .header-cta {
    display: none;
  }

  .hero-inner {
    padding: 32px 12px;
  }

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

  .hero-slogan {
    font-size: 17px;
  }

  .home-layout {
    padding: 24px 12px;
  }

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

  .service-highlight,
  .case-summary,
  .service-rank,
  .faq-mini,
  .guide-entry,
  .coop-col,
  .service-decision-block,
  .service-advice-block,
  .conclusion-summary,
  .schedule-note,
  .cooperation-checklist,
  .checklist-section {
    padding: 16px;
  }

  .process-strip {
    padding: 24px 12px;
  }

  .process-list {
    grid-template-columns: repeat(5, 1fr);
  }

  .process-step {
    min-width: 120px;
    padding: 12px;
  }

  .step-num {
    width: 24px;
    height: 24px;
    font-size: 13px;
    line-height: 24px;
  }

  .breadcrumb,
  .page-header,
  .page-title-area {
    padding-left: 12px;
    padding-right: 12px;
  }

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

  .inner-main {
    padding: 0 12px;
  }

  .layout-shell,
  .layout-with-aside,
  .page-layout {
    padding: 0 12px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    padding: 24px 12px 20px;
    gap: 20px;
  }

  .footer-bottom {
    padding: 10px 12px;
  }

  .footer-bottom p {
    font-size: 12px;
  }

  .industry-card,
  .deliverable-item,
  .timeline-note,
  .advice-item,
  .example-card,
  .principle-item,
  .mistake-item,
  .process-node-block {
    padding: 14px 16px;
  }

  .node-detail {
    grid-template-columns: 1fr;
  }

  .faq-item summary {
    padding: 14px 16px;
    font-size: 15px;
  }

  .faq-answer {
    padding: 0 16px 14px;
  }

  .related-links {
    gap: 8px;
  }

  .related-links-item {
    padding: 6px 12px;
    font-size: 13px;
  }

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

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