/* ========================================
   攻略宝科技官网 - 主样式文件
   蓝白色调、光亮苹果风、响应式、简洁高端
======================================== */

/* ---- CSS变量 ---- */
:root {
  --primary: #0066FF;
  --primary-dark: #0044CC;
  --primary-light: #3385FF;
  --accent: #0072E0;
  --bg-dark: #F6F9FF;
  --bg-card: #FFFFFF;
  --bg-card2: #F2F7FF;
  --text-primary: #16233F;
  --text-secondary: #5A6C8F;
  --text-muted: #8595B3;
  --border: rgba(0, 102, 255, 0.25);
  --border-light: rgba(22, 52, 110, 0.10);
  --gradient-primary: linear-gradient(135deg, #0066FF 0%, #00A8FF 100%);
  --gradient-dark: linear-gradient(180deg, #F6F9FF 0%, #EDF3FF 100%);
  --shadow-blue: 0 8px 30px rgba(0, 102, 255, 0.12);
  --shadow-card: 0 4px 24px rgba(30, 60, 120, 0.08);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-main: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, sans-serif;
}

/* ---- 基础重置 ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
}

/* ---- 全局组件 ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-wide {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-sm {
  padding: 60px 0;
}

/* 标题组件 */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 102, 255, 0.08);
  border: 1px solid rgba(0, 102, 255, 0.25);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 100px;
  font-size: 13px;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.section-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-title .highlight {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(0, 102, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 102, 255, 0.4);
}

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

.btn-outline:hover {
  background: rgba(0, 102, 255, 0.06);
  border-color: var(--primary);
  color: var(--primary);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
  border-radius: 10px;
}

/* 卡片 */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

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

/* ---- 导航栏 ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 14px 0;
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 2px 16px rgba(30, 60, 120, 0.06);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: #fff;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.logo-sub {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  color: var(--text-secondary);
  font-size: 14px;
  border-radius: 6px;
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background: rgba(0, 102, 255, 0.08);
}

.nav-cta {
  margin-left: 8px;
  padding: 9px 20px;
  background: var(--primary);
  color: #fff;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
}

.nav-cta:hover {
  background: var(--primary-light);
  color: #fff;
}

.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}

.navbar-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- Hero区域 ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 102, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 102, 255, 0.07) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse at center,
    rgba(0, 102, 255, 0.10) 0%,
    rgba(0, 168, 255, 0.06) 40%,
    transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 102, 255, 0.08);
  border: 1px solid rgba(0, 102, 255, 0.25);
  color: var(--accent);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 13px;
  margin-bottom: 28px;
  animation: fadeInUp 0.8s ease forwards;
}

.hero-title {
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-title .line-accent {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 500px;
  margin-bottom: 40px;
  animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--border-light);
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-stat-item .num {
  font-size: 32px;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.hero-stat-item .label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ---- 服务区域 ---- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  border-color: rgba(0, 102, 255, 0.35);
  box-shadow: var(--shadow-blue);
  transform: translateY(-6px);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(0, 102, 255, 0.08);
  border: 1px solid rgba(0, 102, 255, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
}

.service-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

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

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 20px;
}

.service-tag {
  padding: 4px 10px;
  background: rgba(0, 102, 255, 0.07);
  border: 1px solid rgba(0, 102, 255, 0.18);
  border-radius: 4px;
  font-size: 12px;
  color: var(--accent);
}

/* ---- AIGEO专区 ---- */
.aigeo-section {
  position: relative;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.05) 0%, rgba(0, 168, 255, 0.04) 100%);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.aigeo-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.aigeo-content {}

.aigeo-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.10), rgba(0, 168, 255, 0.08));
  border: 1px solid rgba(0, 102, 255, 0.28);
  color: var(--accent);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.aigeo-title {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.aigeo-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.aigeo-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 36px;
}

.aigeo-feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.aigeo-feature-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(0, 102, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}

.aigeo-feature-text strong {
  display: block;
  font-size: 15px;
  margin-bottom: 4px;
}

.aigeo-feature-text span {
  font-size: 13px;
  color: var(--text-secondary);
}

.aigeo-visual {
  position: relative;
}

.aigeo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.aigeo-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 168, 255, 0.10), transparent 70%);
  pointer-events: none;
}

.aigeo-partners {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.partner-item {
  background: var(--bg-card2);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 14px;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
}

.partner-item:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ---- 文章列表 ---- */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.article-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.article-card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-blue);
  transform: translateY(-4px);
}

.article-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-card2);
}

.article-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
}

.article-card:hover .article-thumb img {
  transform: scale(1.05);
}

.article-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 40px;
  opacity: 0.3;
}

.article-body {
  padding: 22px;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.article-cat {
  padding: 3px 10px;
  background: rgba(0, 102, 255, 0.08);
  border-radius: 4px;
  font-size: 11px;
  color: var(--primary);
  font-weight: 500;
}

.article-date {
  font-size: 12px;
  color: var(--text-muted);
}

.article-title {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.article-excerpt {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---- 关于我们 ---- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-content .lead {
  font-size: 19px;
  font-weight: 500;
  line-height: 1.6;
  margin-bottom: 20px;
}

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

.about-list {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
}

.about-list-item::before {
  content: '';
  width: 20px;
  height: 20px;
  background: rgba(0, 102, 255, 0.12);
  border: 1px solid rgba(0, 102, 255, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%230066FF'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E");
  background-size: 12px;
  background-repeat: no-repeat;
  background-position: center;
}

.about-visual {
  position: relative;
}

.about-map-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.about-info-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  background: var(--bg-card2);
  border-radius: 8px;
}

.info-icon {
  font-size: 20px;
  flex-shrink: 0;
}

.info-content strong {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.info-content span {
  font-size: 15px;
}

/* ---- 页脚 ---- */
.footer {
  background: #F2F7FF;
  border-top: 1px solid var(--border-light);
  padding: 60px 0 30px;
}

/* 品牌行：左侧logo+描述，右侧联系信息 */
.footer-brand-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-light);
}

.footer-brand-left .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 280px;
}

.footer-brand-right {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
}

.footer-info-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-info-icon {
  font-size: 14px;
  flex-shrink: 0;
}

/* 链接区：4列网格 */
.footer-links-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

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

.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-icp {
  font-size: 13px;
  color: var(--text-muted);
}

.footer-icp a {
  color: var(--text-muted);
}

.footer-icp a:hover {
  color: var(--text-secondary);
}

/* ---- 文章详情 ---- */
.article-detail {
  padding-top: 120px;
}

/* 主文 + 侧边栏两栏布局 */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 40px;
  align-items: start;
}

.article-sidebar {
  position: sticky;
  top: 96px;
}

.article-detail-header {
  margin: 0 0 40px;
  text-align: left;
}

.article-detail-title {
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 20px;
}

.article-detail-meta {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-muted);
}

.article-detail-body {
  margin: 0;
}

.article-content {
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-secondary);
}

.article-content h2, .article-content h3, .article-content h4 {
  color: var(--text-primary);
  margin: 32px 0 16px;
  font-weight: 600;
  line-height: 1.4;
}

.article-content h2 { font-size: 24px; }
.article-content h3 { font-size: 20px; }
.article-content h4 { font-size: 17px; }

.article-content p {
  margin-bottom: 20px;
}

.article-content img {
  width: 100%;
  border-radius: var(--radius);
  margin: 24px 0;
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-content blockquote {
  border-left: 3px solid var(--primary);
  padding: 16px 20px;
  background: rgba(0, 102, 255, 0.05);
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
  color: var(--text-secondary);
  font-style: italic;
}

.article-content ul, .article-content ol {
  padding-left: 24px;
  margin-bottom: 20px;
}

.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }

.article-content li {
  margin-bottom: 8px;
}

.article-content code {
  background: var(--bg-card2);
  border: 1px solid var(--border-light);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 14px;
  font-family: 'Courier New', monospace;
}

.article-content pre {
  background: var(--bg-card2);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  padding: 20px;
  overflow-x: auto;
  margin: 20px 0;
}

.article-content pre code {
  background: none;
  border: none;
  padding: 0;
}

/* ---- 联系页面 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-form-group {
  margin-bottom: 20px;
}

.contact-form-group label {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.contact-form-group input,
.contact-form-group textarea,
.contact-form-group select {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 15px;
  transition: var(--transition);
}

.contact-form-group input:focus,
.contact-form-group textarea:focus,
.contact-form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.12);
}

.contact-form-group textarea {
  resize: vertical;
  min-height: 140px;
}

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

.contact-info-item {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
}

/* ---- 动画 ---- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-fade-up {
  opacity: 0;
  animation: fadeInUp 0.7s ease forwards;
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

/* ---- 通用工具类 ---- */
.text-center { text-align: center; }
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }

/* 页面顶部间距（固定导航） */
.page-top {
  padding-top: 100px;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.breadcrumb a:hover { color: var(--primary); }
.breadcrumb-sep { color: var(--text-muted); }
.breadcrumb-current { color: var(--text-secondary); }

/* 分页 */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 6px;
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
}

.page-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.page-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.page-ellipsis {
  color: var(--text-muted);
  padding: 0 4px;
}

.page-info {
  font-size: 13px;
  color: var(--text-muted);
  margin-left: 8px;
}

/* ---- 布局容器（桌面端）---- */
.hero-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-cta-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.service-detail-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

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

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

/* ---- 资讯横幅（资讯中心页头） ---- */
.news-banner {
  background: linear-gradient(135deg, #E8F1FF 0%, #F8FBFF 55%, #EAF3FF 100%);
  border-bottom: 1px solid var(--border-light);
  padding: 56px 0;
  position: relative;
  overflow: hidden;
}

.news-banner::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 102, 255, 0.10), transparent 70%);
  pointer-events: none;
}

.news-banner-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.news-banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 102, 255, 0.08);
  border: 1px solid rgba(0, 102, 255, 0.25);
  color: var(--accent);
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.news-banner-title {
  font-size: clamp(26px, 3.5vw, 42px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.news-banner-sub {
  font-size: 16px;
  color: var(--text-secondary);
  margin: 16px 0 0;
  line-height: 2;
  max-width: 620px;
}

/* 渐变高亮文字（标题/副口号中 *文字* 标记） */
.ai-grad {
  background: linear-gradient(90deg, #0066FF 0%, #7B5CFF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* AI平台logo墙 */
.news-banner-ai {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 26px 0 30px;
}

.ai-chip-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 76px;
  padding: 12px 8px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.ai-chip:hover .ai-chip-card {
  transform: translateY(-3px);
  box-shadow: var(--shadow-blue);
  border-color: var(--border);
}

.ai-chip-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  color: var(--primary);
  overflow: hidden;
}

.ai-chip-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.ai-chip-name {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.3;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.news-banner-btn { margin-top: 4px; }

.news-banner-qr {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.news-banner-qr img {
  width: 170px;
  height: 170px;
  border-radius: 8px;
  display: block;
  object-fit: cover;
}

.news-banner-qr span {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 10px;
}

/* ---- 页脚热线 + 二维码 ---- */
.footer-contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  padding: 26px 0;
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 36px;
}

.footer-hotline .fh-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.footer-hotline .fh-icon { font-size: 15px; }

.footer-hotline .fh-phone {
  font-size: 28px;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.02em;
}

.footer-qr-list {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.footer-qr { text-align: center; }

.footer-qr img {
  width: 112px;
  height: 112px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--border-light);
  object-fit: cover;
}

.footer-qr p {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ---- 右侧悬浮联系组件 ---- */
.float-contact {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.fc-item { position: relative; }

.fc-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 66px;
  padding: 10px 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 10px;
  box-shadow: var(--shadow-card);
  font-size: 11px;
  color: var(--text-secondary);
  text-align: center;
  transition: var(--transition);
}

.fc-btn:hover {
  border-color: var(--border);
  color: var(--primary);
  box-shadow: var(--shadow-blue);
  transform: translateY(-2px);
}

.fc-icon { font-size: 20px; line-height: 1; }

.fc-pop {
  position: absolute;
  right: calc(100% + 14px);
  top: 50%;
  transform: translateY(-50%) translateX(8px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  box-shadow: var(--shadow-blue);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  width: 190px;
  text-align: center;
  pointer-events: none;
}

.fc-item:hover .fc-pop,
.fc-item:focus-within .fc-pop {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(0);
  pointer-events: auto;
}

.fc-pop img {
  width: 160px;
  height: 160px;
  margin: 0 auto 8px;
  border-radius: 8px;
  object-fit: cover;
}

.fc-pop .fc-pop-title {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.fc-pop .fc-phone {
  font-size: 21px;
  font-weight: 800;
  color: var(--primary);
  margin-top: 4px;
  white-space: nowrap;
}

/* ---- 文章页品牌名片卡 ---- */
.brand-card {
  background: linear-gradient(135deg, #0052E0 0%, #0080FF 100%);
  border-radius: var(--radius-lg);
  padding: 22px;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 102, 255, 0.25);
}

.bc-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.bc-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: var(--primary);
  overflow: hidden;
  flex-shrink: 0;
}

.bc-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bc-head-text { min-width: 0; }

.bc-name {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
}

.bc-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 5px;
  padding: 2px 10px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 100px;
  font-size: 11px;
}

.bc-intro {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 16px;
}

.bc-qr-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.bc-qr-text { flex: 1; min-width: 0; }

.bc-qr-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 5px;
}

.bc-qr-desc {
  font-size: 11.5px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.8);
}

.bc-qr {
  width: 86px;
  height: 86px;
  border-radius: 10px;
  background: #fff;
  padding: 4px;
  flex-shrink: 0;
  object-fit: cover;
}

/* ---- 网站地图页 ---- */
.sitemap-group { margin-bottom: 48px; }

.sitemap-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
}

.sitemap-icon { font-size: 20px; }

.sitemap-links {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.sitemap-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  transition: var(--transition);
}

.sitemap-item:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-blue);
  transform: translateY(-2px);
}

.sitemap-item-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.sitemap-item:hover .sitemap-item-name { color: var(--primary); }

.sitemap-item-desc {
  font-size: 12px;
  color: var(--text-muted);
}

.sitemap-article-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 10px;
}

.sitemap-article {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  transition: var(--transition);
}

.sitemap-article:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-blue);
}

.sitemap-article-title {
  font-size: 13px;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sitemap-article:hover .sitemap-article-title { color: var(--primary); }

.sitemap-article-date {
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .sitemap-article-list { grid-template-columns: 1fr; }
}

/* ---- 360智见代理页 ---- */
.zj-certs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.zj-cert {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
}

.zj-cert-icon { font-size: 22px; line-height: 1; }

.zj-cert-img {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

/* 认证证书图片墙 */
.zj-cert-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}

.zj-cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 16px;
  text-align: center;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.zj-cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-blue);
  border-color: var(--border);
}

.zj-cert-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  border-radius: 10px;
  background: var(--bg-card2);
  border: 1px solid var(--border-light);
}

.zj-cert-card p {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 12px;
}

@media (max-width: 768px) {
  .zj-cert-gallery { grid-template-columns: 1fr; max-width: 420px; }
}

.zj-cert strong {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.zj-cert span {
  font-size: 12px;
  color: var(--text-muted);
}

/* AI问答演示 */
.zj-qa-demo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
  max-width: 940px;
  margin: 0 auto;
}

.zj-question {
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-left: 3px solid var(--primary);
  border-radius: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  box-shadow: var(--shadow-card);
}

.zj-answer {
  background: linear-gradient(135deg, #0052E0 0%, #0080FF 100%);
  border-radius: var(--radius-lg);
  padding: 24px;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 102, 255, 0.25);
}

.zj-answer-head {
  font-size: 13px;
  opacity: 0.9;
  margin-bottom: 14px;
}

.zj-answer p {
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 8px;
}

.zj-answer .ai-grad {
  background: linear-gradient(90deg, #FFE9A8 0%, #FFFFFF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.zj-answer p[style] { color: rgba(255, 255, 255, 0.75) !important; }

/* 对比表 */
.zj-compare-wrap { overflow-x: auto; }

.zj-compare {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

.zj-compare th {
  padding: 13px 20px;
  text-align: left;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: var(--bg-card2);
  border-bottom: 1px solid var(--border-light);
  white-space: nowrap;
}

.zj-compare td {
  padding: 13px 20px;
  font-size: 13.5px;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
  line-height: 1.7;
}

.zj-compare tr:last-child td { border-bottom: none; }
.zj-compare tr:hover td { background: rgba(0, 102, 255, 0.03); }
.zj-compare td:first-child { color: var(--text-muted); }

.zj-yes { color: var(--text-primary); }
.zj-yes::before { content: '✓ '; color: var(--primary); font-weight: 700; }
.zj-no { color: var(--text-secondary); }
.zj-no::before { content: '✗ '; color: var(--text-muted); font-weight: 700; }

/* 服务流程 */
.zj-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.zj-step {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 26px 24px 24px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.zj-step:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-blue);
  transform: translateY(-4px);
}

.zj-step-num {
  display: inline-block;
  font-size: 22px;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
}

.zj-step strong {
  display: block;
  font-size: 15.5px;
  margin-bottom: 8px;
}

.zj-step p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* FAQ */
.zj-faq {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.zj-faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow-card);
}

.zj-faq-item strong {
  display: block;
  font-size: 15px;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.zj-faq-item p {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* 官方认证证书卡（FAQ 左栏，参考旋锋互动布局） */
.zj-auth-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 32px;
  align-items: start;
  max-width: 1060px;
  margin: 0 auto;
}

.zj-auth-grid-full { grid-template-columns: 1fr; }

.zj-auth-card {
  position: sticky;
  top: 90px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.zj-auth-card h3 {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.zj-auth-frame {
  border: 2px solid rgba(0, 102, 255, 0.35);
  outline: 6px solid rgba(0, 102, 255, 0.07);
  border-radius: 12px;
  padding: 6px;
  background: #fff;
  margin-bottom: 14px;
}

.zj-auth-frame img {
  width: 100%;
  max-height: 420px;
  object-fit: contain;
  border-radius: 8px;
  background: var(--bg-card2);
}

.zj-auth-title {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 14px;
}

.zj-auth-notes {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px dashed var(--border-light);
  padding-top: 14px;
}

.zj-auth-notes span {
  position: relative;
  padding-left: 18px;
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.zj-auth-notes span::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 800;
}

/* 联合品牌标识（攻略宝 × 360智见） */
.zj-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.zj-lockup-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  padding: 7px 16px 7px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 999px;
  box-shadow: 0 2px 10px rgba(30, 60, 120, 0.06);
}

.zj-lockup-logo {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.zj-lockup-logo-360 {
  background: linear-gradient(135deg, #12B76A 0%, #0B9E5A 100%);
  font-size: 9.5px;
  letter-spacing: -0.3px;
}

.zj-lockup-x {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-muted);
}

/* Hero 数据卡 */
.zj-hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 34px;
  max-width: 660px;
}

.zj-hstat {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 14px 10px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(30, 60, 120, 0.05);
  transition: var(--transition);
}

.zj-hstat:hover {
  transform: translateY(-3px);
  border-color: var(--border);
  box-shadow: var(--shadow-blue);
}

.zj-hstat strong {
  display: block;
  font-size: 16px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
}

.zj-hstat span {
  display: block;
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 5px;
  line-height: 1.5;
}

/* 强调边框块（联合服务边界） */
.zj-border-box {
  margin-top: 22px;
  padding: 18px 20px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.05), rgba(0, 168, 255, 0.03));
  border-left: 3px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.zj-border-box-title {
  display: block;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.zj-border-box p {
  font-size: 14px;
  line-height: 1.95;
  color: var(--text-secondary);
}

/* 双栏对照卡（联合服务模式） */
.zj-twin {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.zj-twin-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px 28px 26px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

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

.zj-twin-card-accent {
  border-color: var(--border);
  background: linear-gradient(160deg, rgba(0, 102, 255, 0.07), rgba(0, 168, 255, 0.02));
}

.zj-twin-head {
  font-size: 16px;
  font-weight: 800;
  color: var(--text-primary);
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px dashed var(--border-light);
}

.zj-twin-card ul {
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.zj-twin-card li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.zj-twin-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary);
  font-weight: 800;
}

/* 覆盖平台（复用资讯页 .ai-chip 图标墙数据与样式） */
.zj-platforms {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  justify-items: center;
  max-width: 1000px;
  margin: 0 auto;
}

/* 五度指标 */
.zj-metrics {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  max-width: 1040px;
  margin: 0 auto;
}

.zj-metric {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-top: 3px solid var(--primary);
  border-radius: var(--radius);
  padding: 22px 16px;
  text-align: center;
  box-shadow: 0 2px 14px rgba(30, 60, 120, 0.05);
  transition: var(--transition);
}

.zj-metric:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-blue);
}

.zj-metric strong {
  display: block;
  font-size: 17px;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

.zj-metric span {
  display: block;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--text-secondary);
}

/* 四固定检测纪律 */
.zj-fixes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.zj-fixes > div {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 14px 16px;
  background: var(--bg-card2);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
}

.zj-fixes span {
  font-size: 15px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.zj-fixes strong {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-primary);
}

.zj-fixes em {
  font-size: 11.5px;
  font-style: normal;
  color: var(--text-muted);
  line-height: 1.65;
}

@media (max-width: 1024px) {
  .zj-certs { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .zj-qa-demo { grid-template-columns: 1fr; }
  .zj-steps { grid-template-columns: repeat(2, 1fr); }
  .zj-twin { grid-template-columns: 1fr; }
  .zj-platforms { grid-template-columns: repeat(3, 1fr); }
  .zj-metrics { grid-template-columns: repeat(3, 1fr); }
  .zj-fixes { grid-template-columns: repeat(2, 1fr); }
  .zj-hero-stats { grid-template-columns: repeat(2, 1fr); }
  .zj-auth-grid { grid-template-columns: 1fr; }
  .zj-auth-card { position: static; }
}

@media (max-width: 768px) {
  .zj-steps { grid-template-columns: 1fr; }
  .zj-compare th, .zj-compare td { padding: 10px 14px; font-size: 12.5px; }
  .zj-platforms { grid-template-columns: repeat(2, 1fr); }
  .zj-metrics { grid-template-columns: repeat(2, 1fr); }
  .zj-fixes { grid-template-columns: 1fr; }
}

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .aigeo-inner { grid-template-columns: 1fr; gap: 48px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .footer-links-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .contact-grid { grid-template-columns: 1fr; }
  .baike-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-sm { padding: 40px 0; }

  /* 资讯横幅：上下堆叠 */
  .news-banner { padding: 40px 0; }
  .news-banner-inner { grid-template-columns: 1fr; gap: 32px; }
  .news-banner-qr { justify-self: center; }

  /* 页脚热线 + 二维码：竖排居中 */
  .footer-contact-row { flex-direction: column; text-align: center; gap: 24px; }
  .footer-hotline .fh-label { justify-content: center; }
  .footer-qr-list { justify-content: center; }

  /* 悬浮联系组件：贴边缩小 */
  .float-contact { right: 10px; gap: 8px; }
  .fc-btn { width: 54px; padding: 8px 4px; font-size: 10px; }
  .fc-icon { font-size: 17px; }
  .fc-pop { right: calc(100% + 10px); }

  /* 导航 */
  .navbar-menu { display: none; }
  .navbar-menu.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    align-items: center;
    justify-content: center;
    gap: 24px;
    z-index: 1998;
  }
  .navbar-menu.active .nav-link {
    font-size: 20px;
    padding: 12px 24px;
  }
  .navbar-toggle { display: flex; z-index: 1999; position: relative; }

  /* Hero：上下堆叠 */
  .hero { padding-top: 70px; min-height: auto; padding-bottom: 48px; }
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-content { max-width: 100%; }
  .hero-title { font-size: clamp(28px, 8vw, 42px); }
  .hero-desc { font-size: 15px; max-width: 100%; }
  .hero-stats { gap: 20px; flex-wrap: wrap; margin-top: 32px; padding-top: 24px; }
  .hero-stat-item .num { font-size: 26px; }

  /* Hero 右侧浮动卡片：单列全宽 */
  .hero-layout > .animate-float { width: 100%; }
  .hero-layout > .animate-float > div { padding: 20px !important; }

  /* Hero 浮动标签：移动端改为相对定位 */
  .hero-float-badge {
    position: static !important;
    margin-top: 14px !important;
    display: flex !important;
    border-radius: 10px !important;
    width: 100%;
    box-sizing: border-box;
  }

  /* 关于我们 + CTA：单列 */
  .about-cta-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .about-map-card { padding: 20px; }
  .about-info-item { padding: 12px; }

  /* 服务详情：单列 */
  .service-detail-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  /* 百科三列 → 单列 */
  .baike-grid { grid-template-columns: 1fr; gap: 14px; }

  /* 合作伙伴三列 → 单列 */
  .partners-grid { grid-template-columns: 1fr !important; gap: 16px !important; max-width: 100% !important; }

  /* 服务卡片 */
  .services-grid { grid-template-columns: 1fr; gap: 16px; }
  .service-card { padding: 22px; }

  /* AIGEO 模块 */
  .aigeo-inner { grid-template-columns: 1fr; gap: 36px; }
  .aigeo-partners { grid-template-columns: repeat(2, 1fr); gap: 10px; }

  /* 文章列表 */
  .articles-grid { grid-template-columns: 1fr; }

  /* Footer 手机端：品牌竖排 + 2列链接网格 */
  .footer { padding: 32px 0 20px; }
  .footer-brand-row {
    flex-direction: column;
    gap: 16px;
    margin-bottom: 28px;
    padding-bottom: 24px;
  }
  .footer-brand-left .footer-desc { max-width: 100%; font-size: 13px; }
  .footer-brand-right { flex-direction: row; flex-wrap: wrap; gap: 6px 20px; }
  .footer-info-item { font-size: 12px; }
  .footer-links-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px 16px;
    margin-bottom: 24px;
  }
  .footer-col-title { font-size: 13px; margin-bottom: 10px; }
  .footer-links { gap: 8px; }
  .footer-links a { font-size: 13px; }
  .footer-bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 4px;
    padding-top: 16px;
  }

  /* 标题区域 */
  .section-header { margin-bottom: 36px; }
  .section-title { font-size: clamp(22px, 6vw, 32px); }
  .section-desc { font-size: 14px; }

  /* 按钮 */
  .hero-actions { gap: 12px; }
  .hero-actions .btn-lg { padding: 13px 24px; font-size: 15px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .hero-title { font-size: 28px; }
  .hero-badge { font-size: 11px; padding: 6px 12px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .btn-lg { padding: 13px 20px; font-size: 15px; }

  /* Footer 480px：全单列 */
  .footer-links-grid { grid-template-columns: 1fr 1fr; gap: 16px 12px; }
  .footer-brand-right { flex-direction: column; gap: 5px; }
  .footer-info-item { font-size: 11.5px; }

  /* 卡片 */
  .card { padding: 18px; }
  .about-info-item { padding: 10px; gap: 10px; }

  .section-header { margin-bottom: 28px; }
  .section { padding: 44px 0; }
}