/* ==========================================================================
   base — 基础变量、重置与全局排版
   ========================================================================== */
:root {
  --blue: #2563EB;
  --blue-dark: #1D4ED8;
  --blue-light: #EFF6FF;
  --green: #10B981;
  --green-dark: #059669;
  --green-light: #ECFDF5;
  --white: #FFFFFF;
  --text: #1F2937;
  --text-light: #6B7280;
  --bg-gray: #F3F4F6;
  --border: #E5E7EB;
  --radius: 8px;
  --shadow-sm: 0 1px 2px rgba(31, 41, 55, 0.06);
  --shadow-md: 0 4px 12px rgba(31, 41, 55, 0.08);
  --shadow-lg: 0 8px 24px rgba(31, 41, 55, 0.10);
  --max-width: 1200px;
  --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--blue-dark);
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
}

/* 通用容器 */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   layout — 页面整体框架：头部、页脚、侧栏、两栏布局
   ========================================================================== */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo {
  width: 36px;
  height: 36px;
  background: var(--blue);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 600;
  font-size: 1.125rem;
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.5px;
}

.brand-name span {
  color: var(--blue);
}

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

.main-nav a {
  display: block;
  padding: 8px 14px;
  font-size: 0.9375rem;
  color: var(--text);
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}

.main-nav a:hover {
  color: var(--blue);
  background: var(--blue-light);
}

.main-nav a.active {
  color: var(--blue);
  font-weight: 500;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-consult {
  display: inline-block;
  padding: 9px 20px;
  background: var(--blue);
  color: var(--white);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: background 0.2s, box-shadow 0.2s;
}

.btn-consult:hover {
  background: var(--blue-dark);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

/* 移动端汉堡按钮 */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* 面包屑 */
.breadcrumb {
  padding: 14px 0;
  font-size: 0.875rem;
  color: var(--text-light);
}

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

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

.breadcrumb span {
  margin: 0 6px;
  color: var(--border);
}

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

/* 两栏主体布局（内页） */
.page-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
  padding: 24px 0 56px;
  align-items: start;
}

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

.sidebar {
  position: sticky;
  top: 88px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-card {
  background: var(--bg-gray);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.sidebar-card h3 {
  font-size: 1rem;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.sidebar-nav a {
  display: block;
  padding: 8px 0;
  font-size: 0.9375rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  transition: color 0.2s, padding-left 0.2s;
}

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

.sidebar-nav a:hover {
  color: var(--blue);
  padding-left: 6px;
}

.sidebar-nav a.active {
  color: var(--blue);
  font-weight: 500;
}

.sidebar-contact {
  background: var(--blue);
  color: var(--white);
}

.sidebar-contact h3 {
  color: var(--white);
  border-bottom-color: rgba(255, 255, 255, 0.2);
}

.sidebar-contact p {
  font-size: 0.9375rem;
  margin-bottom: 12px;
  color: rgba(255, 255, 255, 0.9);
}

.sidebar-contact .btn-consult {
  background: var(--white);
  color: var(--blue);
  width: 100%;
  text-align: center;
}

.sidebar-contact .btn-consult:hover {
  background: var(--blue-light);
}

/* 页脚 */
.site-footer {
  background: var(--text);
  color: rgba(255, 255, 255, 0.8);
  padding: 48px 0 0;
  margin-top: 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
}

.footer-brand .brand-name {
  color: var(--white);
  margin-bottom: 8px;
}

.footer-brand p {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 12px;
}

.footer-slogan {
  color: var(--green) !important;
  font-weight: 500;
}

.footer-col h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 14px;
}

.footer-col a {
  display: block;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  padding: 4px 0;
  transition: color 0.2s;
}

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

.footer-cta-text {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 14px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 16px 0;
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
}

/* ==========================================================================
   components — 通用组件：按钮、卡片、步骤条、FAQ、表单、信任条
   ========================================================================== */
.btn {
  display: inline-block;
  padding: 10px 24px;
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}

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

.btn-primary:hover {
  background: var(--blue-dark);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--blue);
  border: 1px solid var(--blue);
}

.btn-outline:hover {
  background: var(--blue-light);
  box-shadow: var(--shadow-sm);
}

/* 信任条 */
.trust-bar {
  background: var(--bg-gray);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

.trust-bar-inner {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.trust-item {
  font-size: 0.9375rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.trust-item::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  display: inline-block;
}

/* 服务卡片 */
.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.service-icon {
  width: 48px;
  height: 48px;
  background: var(--blue-light);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 14px;
  color: var(--blue);
}

.service-card:nth-child(even) .service-icon {
  background: var(--green-light);
  color: var(--green);
}

.service-card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--text-light);
  margin-bottom: 12px;
}

.service-card .card-link {
  font-size: 0.9375rem;
  font-weight: 500;
}

/* 案例卡片 */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.case-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

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

.case-body {
  padding: 20px;
}

.case-tag {
  display: inline-block;
  font-size: 0.8125rem;
  color: var(--green);
  background: var(--green-light);
  padding: 2px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}

.case-card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.case-card p {
  font-size: 0.9375rem;
  color: var(--text-light);
  margin-bottom: 12px;
}

/* 步骤条 */
.steps-wrapper {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: step;
}

.step-item {
  position: relative;
  padding: 24px;
  background: var(--bg-gray);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.step-item::before {
  counter-increment: step;
  content: "0" counter(step);
  font-size: 2rem;
  font-weight: 600;
  color: var(--blue);
  opacity: 0.25;
  display: block;
  margin-bottom: 12px;
  line-height: 1;
}

.step-item h3 {
  font-size: 1rem;
  margin-bottom: 6px;
}

.step-item p {
  font-size: 0.9375rem;
  color: var(--text-light);
  margin-bottom: 0;
}

/* FAQ 手风琴 */
.faq-list {
  border-top: 1px solid var(--border);
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  padding: 16px 0;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color 0.2s;
}

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

.faq-question::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--blue);
  flex-shrink: 0;
  transition: transform 0.2s;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding-bottom: 16px;
  font-size: 0.9375rem;
  color: var(--text-light);
}

/* 咨询表单 */
.contact-form {
  background: var(--bg-gray);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

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

.form-group {
  margin-bottom: 16px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-family);
  font-size: 0.9375rem;
  color: var(--text);
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-privacy {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-top: 8px;
}

/* 文章列表 */
.article-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.article-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.2s;
}

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

.article-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 140px;
}

.article-content {
  padding: 20px 20px 20px 0;
}

.article-meta {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 8px;
}

.article-content h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.article-content h3 a {
  color: var(--text);
}

.article-content h3 a:hover {
  color: var(--blue);
}

.article-content p {
  font-size: 0.9375rem;
  color: var(--text-light);
  margin-bottom: 12px;
}

/* ==========================================================================
   pages — 页面级样式：首页各区块、内页细节
   ========================================================================== */
/* 首页 Hero */
.hero {
  background: var(--blue-light);
  padding: 56px 0;
  border-bottom: 1px solid var(--border);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-text h1 {
  font-size: 2.25rem;
  margin-bottom: 16px;
  color: var(--text);
}

.hero-text h1 span {
  color: var(--blue);
}

.hero-text p {
  font-size: 1.125rem;
  color: var(--text-light);
  margin-bottom: 24px;
  max-width: 480px;
}

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

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

/* 首页区块通用 */
.section-block {
  padding: 48px 0;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 24px;
}

.section-header h2 {
  margin-bottom: 0;
}

.section-header .section-link {
  font-size: 0.9375rem;
  font-weight: 500;
}

/* 案例区块背景 */
.section-gray {
  background: var(--bg-gray);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* FAQ 预览 */
.faq-preview {
  max-width: 800px;
}

/* 首页咨询区块 */
.contact-section {
  background: var(--blue);
  padding: 48px 0;
}

.contact-section .section-header h2 {
  color: var(--white);
}

.contact-section .section-header .section-link {
  color: rgba(255, 255, 255, 0.8);
}

.contact-section .contact-form {
  background: var(--white);
  border: none;
}

/* 内页标题区 */
.page-title {
  background: var(--blue-light);
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}

.page-title h1 {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.page-title p {
  color: var(--text-light);
  margin-bottom: 0;
  font-size: 1rem;
}

/* 关于页 */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.about-content img {
  border-radius: var(--radius);
}

.about-text h3 {
  font-size: 1.125rem;
  margin-bottom: 12px;
  color: var(--blue);
}

.about-text p {
  font-size: 0.9375rem;
  color: var(--text-light);
}

.value-list {
  margin-top: 16px;
}

.value-list li {
  padding: 8px 0;
  padding-left: 28px;
  position: relative;
  font-size: 0.9375rem;
  color: var(--text);
}

.value-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 600;
}

/* 服务能力页 */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.feature-detail {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.feature-detail h3 {
  font-size: 1.125rem;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-detail h3 .feature-num {
  color: var(--blue);
  font-size: 0.875rem;
}

.feature-detail p {
  font-size: 0.9375rem;
  color: var(--text-light);
  margin-bottom: 12px;
}

.feature-detail ul li {
  font-size: 0.9375rem;
  color: var(--text);
  padding: 4px 0;
  padding-left: 20px;
  position: relative;
}

.feature-detail ul li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 600;
}

/* 流程页 */
.process-list {
  counter-reset: process;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.process-item {
  background: var(--bg-gray);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  align-items: start;
}

.process-num {
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--blue);
  opacity: 0.3;
  line-height: 1;
}

.process-item h3 {
  font-size: 1.125rem;
  margin-bottom: 8px;
}

.process-item p {
  font-size: 0.9375rem;
  color: var(--text-light);
  margin-bottom: 0;
}

/* FAQ 页 */
.faq-page-list {
  max-width: 800px;
}

/* 联系我们页 */
.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.contact-info-card {
  background: var(--bg-gray);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}

.contact-info-card .info-icon {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.contact-info-card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.contact-info-card p {
  font-size: 0.9375rem;
  color: var(--text-light);
  margin-bottom: 0;
}

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

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

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

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

  .page-layout {
    grid-template-columns: 1fr 280px;
    gap: 24px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    display: none;
    z-index: 99;
  }

  .main-nav.open {
    display: flex;
  }

  .main-nav a {
    padding: 12px 16px;
    font-size: 1rem;
  }

  .header-cta .btn-consult {
    display: none;
  }

  .hero {
    padding: 40px 0;
  }

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

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

  .hero-text p {
    font-size: 1rem;
  }

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

  .sidebar {
    position: static;
    order: -1;
  }

  .sidebar-card {
    padding: 20px;
  }

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

  .article-content {
    padding: 16px;
  }

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

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

  .feature-block {
    grid-template-columns: 1fr;
  }

  .contact-info-grid {
    grid-template-columns: 1fr;
  }

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

  .trust-bar-inner {
    gap: 16px;
    justify-content: flex-start;
  }
}

@media (max-width: 480px) {
  .service-grid {
    grid-template-columns: 1fr;
  }

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

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

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

  .process-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .process-num {
    font-size: 1.75rem;
  }

  .section-block {
    padding: 32px 0;
  }

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

  .contact-form {
    padding: 20px;
  }

  .breadcrumb {
    font-size: 0.8125rem;
  }

  .page-title h1 {
    font-size: 1.5rem;
  }

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

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

  .hero-actions .btn {
    text-align: center;
  }

  h2 {
    font-size: 1.25rem;
  }
}

/* Page styles: index.html */
/* 首页英雄区背景渐变，增强视觉层次 */
.hero {
  background: linear-gradient(135deg, #EFF6FF 0%, #FFFFFF 100%);
}

/* 服务卡片的图标背景与主题色呼应 */
.service-icon {
  background: var(--blue-light);
  color: var(--blue);
}

.service-card:nth-child(even) .service-icon {
  background: var(--green-light);
  color: var(--green);
}

/* 案例摘要中图片的轻微遮罩，保证文字可读性 */
.case-card img {
  transition: transform 0.3s ease;
}

.case-card:hover img {
  transform: scale(1.02);
}

/* 首页文章摘要列表样式微调 */
.article-mini-list .article-item {
  grid-template-columns: 120px 1fr;
  border: none;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  padding-bottom: 16px;
  margin-bottom: 16px;
}

.article-mini-list .article-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.article-mini-list .article-item img {
  min-height: 80px;
  border-radius: var(--radius);
}

.article-mini-list .article-content {
  padding: 0;
}

.article-mini-list .article-content h3 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.article-mini-list .article-content p {
  font-size: 0.875rem;
  margin-bottom: 0;
}

/* 首页咨询表单在蓝色背景上的样式 */
.contact-section .form-group label {
  color: var(--text);
}

.contact-section .form-privacy {
  color: var(--text-light);
}

/* 页脚品牌名中 vlog 文字颜色强调 */
.footer-brand .brand-accent {
  color: var(--green);
}

/* Page styles: txvlog/features.html */
/* 服务能力页专用补充样式 */
.feature-detail ul li {
  margin-bottom: 6px;
}
.feature-block + .feature-block {
  margin-top: 32px;
}
.feature-detail {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.feature-detail h3 {
  margin-bottom: 12px;
}
.feature-detail p {
  color: var(--text-light);
}
.case-grid {
  margin-top: 20px;
}

/* Page styles: txvlog/articles.html */
/* 内容洞察页专用样式：文章列表增强、标签、摘要排版 */
.insight-tag {
  display: inline-block;
  background: var(--green-light);
  color: var(--green-dark);
  font-size: 0.85rem;
  padding: 0.2rem 0.8rem;
  border-radius: 20px;
  margin-bottom: 0.8rem;
  font-weight: 500;
}
.article-item {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: box-shadow 0.2s ease;
}
.article-item:hover {
  box-shadow: var(--shadow-md);
}
.article-item img {
  width: 180px;
  height: 120px;
  object-fit: cover;
  border-radius: var(--radius);
  flex-shrink: 0;
}
.article-content {
  flex: 1;
}
.article-meta {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  display: flex;
  gap: 1rem;
}
.article-content h3 {
  font-size: 1.3rem;
  margin-bottom: 0.4rem;
}
.article-content h3 a {
  color: var(--text);
  text-decoration: none;
}
.article-content h3 a:hover {
  color: var(--blue);
}
.article-content p {
  color: var(--text-light);
  line-height: 1.7;
}
@media (max-width: 768px) {
  .article-item {
    flex-direction: column;
    padding: 1rem;
  }
  .article-item img {
    width: 100%;
    height: auto;
  }
}

/* responsive guard */
html, body { max-width: 100%; overflow-x: hidden; }
img, video, canvas, svg { max-width: 100%; height: auto; }
* { min-width: 0; }
@media (max-width: 480px) {
  table { display: block; max-width: 100%; overflow-x: auto; }
}