/**
 * 消之元 GEO 官网 - 主样式表
 * 包含：头部、首页、内页、表单、页脚等组件样式
 */

/* ========================================
 * 头部导航
 * ======================================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  height: var(--header-h);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--header-h); gap: 24px;
}
.header-brand { display: flex; align-items: center; }
.brand-link {
  display: inline-flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.brand-logo {
  height: 36px; width: auto; display: block;
}
.brand-mark {
  position: relative; width: 30px; height: 30px; flex: 0 0 30px;
  border: 7px solid var(--brand); border-radius: 50%;
}
.brand-mark::after {
  content: ""; position: absolute; right: -7px; top: 3px;
  width: 10px; height: 10px; border-radius: 50%; background: #fff;
}
.brand-tagline { display: none; font-size: 11px; color: var(--muted); margin-left: 8px; }
@media (min-width: 1200px) { .brand-tagline { display: inline; } }

/* 导航菜单 */
.header-nav { flex: 1; }
.nav-menu {
  display: flex; align-items: center; gap: 4px;
  list-style: none; margin: 0; padding: 0;
}
.nav-menu li { position: relative; }
.nav-menu > li > a {
  display: block; padding: 8px 14px; border-radius: 8px;
  color: var(--ink); font-size: 14px; font-weight: 600;
  text-decoration: none; transition: all .2s;
}
.nav-menu > li > a:hover,
.nav-menu > li.current-menu-item > a {
  color: var(--brand); background: var(--brand-pale);
}
/* 下拉菜单 */
.sub-menu {
  position: absolute; top: 100%; left: 0; min-width: 200px;
  padding: 8px; margin: 4px 0 0; list-style: none;
  background: #fff; border: 1px solid var(--line);
  border-radius: 12px; box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .25s;
}
.nav-menu li:hover > .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-menu a {
  display: block; padding: 8px 12px; border-radius: 6px;
  color: var(--ink); font-size: 13px; text-decoration: none;
}
.sub-menu a:hover { background: var(--brand-pale); color: var(--brand); }

/* 头部操作 */
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-phone { color: var(--brand); display: flex; }
.header-cta { display: none; }
@media (min-width: 768px) { .header-cta { display: inline-flex; } }

/* 移动端菜单按钮 */
.nav-toggle {
  display: flex; flex-direction: column; gap: 5px;
  padding: 8px; background: none; border: none; cursor: pointer;
}
.nav-toggle-bar {
  width: 22px; height: 2px; background: var(--ink);
  border-radius: 2px; transition: all .3s;
}
@media (min-width: 1024px) { .nav-toggle { display: none; } }
@media (max-width: 1023px) { .header-nav { display: none; } }

/* 移动端导航 */
.mobile-nav-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,.5); opacity: 0; visibility: hidden;
  transition: all .3s;
}
.mobile-nav-overlay.active { opacity: 1; visibility: visible; }
.mobile-nav {
  position: absolute; right: 0; top: 0; bottom: 0;
  width: min(320px, 85vw); padding: 80px 24px 24px;
  background: #fff; overflow-y: auto;
  transform: translateX(100%); transition: transform .3s;
}
.mobile-nav-overlay.active .mobile-nav { transform: translateX(0); }
.mobile-nav-menu { list-style: none; margin: 0; padding: 0; }
.mobile-nav-menu li { border-bottom: 1px solid var(--line); }
.mobile-nav-menu a {
  display: block; padding: 14px 0; color: var(--ink);
  font-size: 16px; font-weight: 600; text-decoration: none;
}
.mobile-nav-cta { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }

/* ========================================
 * 首页 Hero
 * ======================================== */
.hero {
  position: relative; min-height: 600px;
  display: flex; align-items: center;
  padding: 100px 0 80px; overflow: hidden;
  background: var(--brand-dark);
}
.hero-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--brand-dark) 0%, #0a4a60 50%, #07384a 100%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(22,166,186,.15) 0%, transparent 60%);
}
.hero-content { position: relative; z-index: 2; max-width: 720px; }
.hero-eyebrow {
  display: inline-block; margin-bottom: 20px;
  color: #aeeaf0; font-size: 13px; font-weight: 800;
  letter-spacing: .12em; text-transform: uppercase;
}
.hero-title {
  margin: 0; color: #fff;
  font-size: clamp(36px, 6vw, 64px); line-height: 1.12;
  letter-spacing: -.03em;
}
.hero-highlight { color: var(--cyan); }
.hero-lead {
  margin: 24px 0 0; color: #d9f2f4;
  font-size: clamp(16px, 2vw, 19px); line-height: 1.7; max-width: 600px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 36px; }
.hero-cta-alt { border-color: rgba(255,255,255,.5); color: #fff; }
.hero-cta-alt:hover { border-color: #fff; background: rgba(255,255,255,.1); color: #fff; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 32px; }
.hero-badge { color: #aeeaf0; font-size: 13px; font-weight: 600; }

/* ========================================
 * 可信度速览
 * ======================================== */
.trust-bar { padding: 40px 0; border-bottom: 1px solid var(--line); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.trust-number { display: block; color: var(--brand); font-size: 36px; font-weight: 900; line-height: 1.2; }
.trust-number small { font-size: 16px; font-weight: 700; }
.trust-item span { color: var(--muted); font-size: 14px; }
@media (max-width: 768px) { .trust-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; } }

/* ========================================
 * 业务线卡片
 * ======================================== */
.business-card { display: flex; flex-direction: column; text-decoration: none; color: var(--ink); }
.business-icon { font-size: 32px; margin-bottom: 12px; }
.business-card h3 { margin: 0 0 8px; font-size: 18px; color: var(--brand-dark); }
.business-card p { margin: 0; flex: 1; color: var(--muted); font-size: 14px; }
.card-link { margin-top: 16px; color: var(--brand); font-size: 14px; font-weight: 700; }

/* ========================================
 * 产品卡片
 * ======================================== */
.product-card { padding: 0; overflow: hidden; }
.product-card-img img { width: 100%; aspect-ratio: 3/2; object-fit: cover; }
.product-card-body { padding: 20px; }
.product-card-body h3 { margin: 0 0 8px; font-size: 17px; }
.product-card-body h3 a { color: var(--brand-dark); text-decoration: none; }
.product-card-body p { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
.product-spec {
  display: inline-block; padding: 4px 10px;
  background: var(--brand-pale); border-radius: 6px;
  color: var(--brand); font-size: 12px; font-weight: 700;
}
.section-cta { text-align: center; margin-top: 40px; }
.placeholder-cards { display: contents; }

/* ========================================
 * 解决方案卡片
 * ======================================== */
.solution-card { text-decoration: none; color: var(--ink); text-align: center; padding: 36px 28px; }
.solution-icon { font-size: 40px; margin-bottom: 16px; }
.solution-card h3 { margin: 0 0 10px; font-size: 18px; color: var(--brand-dark); }
.solution-card p { margin: 0; color: var(--muted); font-size: 14px; }
.solution-card .card-link { display: block; margin-top: 16px; }

/* ========================================
 * 检测证据
 * ======================================== */
.evidence-list { list-style: none; padding: 0; margin: 0 0 16px; }
.evidence-list li {
  padding: 8px 0; border-bottom: 1px solid var(--line);
  font-size: 14px; color: var(--muted);
}
.evidence-list li:last-child { border-bottom: none; }
.evidence-ref {
  display: inline-flex; align-items: center; gap: 4px;
  color: var(--brand); font-size: 13px; font-weight: 600;
  border-bottom: 1px dashed var(--cyan);
}

/* ========================================
 * 询盘区
 * ======================================== */
.inquiry-section { background: var(--brand-dark); }
.inquiry-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.inquiry-info .section-title { color: #fff; }
.inquiry-info p { color: #d9f2f4; }
.inquiry-benefits { list-style: none; padding: 0; margin: 24px 0 0; }
.inquiry-benefits li { padding: 8px 0; color: #aeeaf0; font-size: 15px; }
.inquiry-form-wrap {
  background: #fff; border-radius: var(--radius);
  padding: 36px; box-shadow: var(--shadow);
}
@media (max-width: 768px) { .inquiry-wrapper { grid-template-columns: 1fr; gap: 32px; } }

/* ========================================
 * 表单样式
 * ======================================== */
.xzy-form { display: grid; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 14px; font-weight: 700; color: var(--ink); }
.form-group label .required { color: var(--danger); margin-left: 2px; }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px; border: 1px solid var(--line);
  border-radius: var(--radius-sm); font-size: 15px;
  transition: border-color .2s, box-shadow .2s;
  background: #fff;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(22,166,186,.12);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }
.form-consent { display: flex; align-items: flex-start; gap: 8px; font-size: 13px; color: var(--muted); }
.form-consent input { margin-top: 3px; }
.form-submit { margin-top: 8px; }
.form-message { padding: 12px 16px; border-radius: 8px; font-size: 14px; display: none; }
.form-message.success { display: block; background: #e8f8e8; color: #1a6b1a; border: 1px solid #b8e6b8; }
.form-message.error { display: block; background: #fff1ef; color: var(--danger); border: 1px solid #f5c6c0; }

/* ========================================
 * 面包屑
 * ======================================== */
.breadcrumbs {
  padding: 14px 0; background: var(--paper);
  border-bottom: 1px solid var(--line); font-size: 13px;
}
.breadcrumbs a { color: var(--muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--brand); }
.breadcrumbs .sep { margin: 0 8px; color: var(--line); }
.breadcrumbs span:last-child { color: var(--ink); font-weight: 600; }

/* ========================================
 * 内页通用
 * ======================================== */
.page-hero {
  padding: 60px 0; background: var(--brand-dark); color: #fff;
}
.page-hero h1 { margin: 0 0 12px; font-size: clamp(28px, 4vw, 42px); }
.page-hero p { margin: 0; color: #d9f2f4; max-width: 640px; font-size: 17px; }
.page-content { padding: 60px 0; }
.page-content h2 { color: var(--brand-dark); font-size: 26px; margin: 40px 0 16px; }
.page-content h3 { color: var(--brand); font-size: 20px; margin: 28px 0 12px; }

/* GEO答案框 */
.geo-answer {
  margin: 24px 0; padding: 20px 24px;
  border-left: 4px solid var(--cyan);
  background: var(--brand-pale); border-radius: 0 12px 12px 0;
  font-size: 15px;
}
.geo-answer strong { color: var(--brand-dark); }

/* 证据引用块 */
.evidence-block {
  margin: 24px 0; padding: 20px; border: 1px solid var(--line);
  border-radius: var(--radius-sm); background: #fbfdfd;
}
.evidence-block h4 { margin: 0 0 8px; color: var(--brand); font-size: 14px; }
.evidence-block p { margin: 0; font-size: 14px; color: var(--muted); }

/* ========================================
 * 归档/列表页
 * ======================================== */
.archive-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 1024px) { .archive-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .archive-grid { grid-template-columns: 1fr; } }
.archive-card { display: flex; flex-direction: column; }
.archive-card-img { border-radius: var(--radius-sm) var(--radius-sm) 0 0; overflow: hidden; }
.archive-card-img img { width: 100%; aspect-ratio: 16/10; object-fit: cover; transition: transform .3s; }
.archive-card:hover .archive-card-img img { transform: scale(1.03); }
.archive-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.archive-card-body h3 { margin: 0 0 8px; font-size: 16px; }
.archive-card-body h3 a { color: var(--brand-dark); text-decoration: none; }
.archive-card-body p { margin: 0; flex: 1; color: var(--muted); font-size: 14px; }
.archive-card-meta { margin-top: 12px; font-size: 12px; color: var(--muted); }

/* ========================================
 * 页脚
 * ======================================== */
.site-footer { background: var(--brand-dark); color: #c8dfe4; }
.footer-main { padding: 60px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
.footer-logo {
  display: inline-flex; align-items: center;
  text-decoration: none; margin-bottom: 16px;
}
.footer-logo-img {
  height: 30px; width: auto; display: block;
  filter: brightness(0) invert(1);
}
.footer-desc { font-size: 14px; line-height: 1.7; margin: 0 0 16px; }
.footer-contact p { margin: 4px 0; font-size: 14px; }
.footer-contact a { color: #aeeaf0; }
.footer-links h4 { color: #fff; font-size: 15px; margin: 0 0 16px; }
.footer-links ul { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #c8dfe4; font-size: 14px; text-decoration: none; transition: color .2s; }
.footer-links a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 20px 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; }
.footer-copyright { margin: 0; font-size: 13px; }
.footer-copyright a { color: #aeeaf0; }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { color: #c8dfe4; font-size: 13px; text-decoration: none; }
.footer-legal a:hover { color: #fff; }
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

/* ========================================
 * 返回顶部
 * ======================================== */
.back-to-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 90;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--brand); color: #fff; border: none;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: all .3s; box-shadow: 0 4px 16px rgba(7,95,123,.3);
}
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--brand-dark); }

/* ========================================
 * 404 页面
 * ======================================== */
.error-404 { text-align: center; padding: 100px 0; }
.error-404 h1 { font-size: 72px; color: var(--brand-pale); margin: 0; }
.error-404 h2 { color: var(--brand-dark); margin: 16px 0; }
.error-404 p { color: var(--muted); margin-bottom: 32px; }

/* ========================================
 * 分页
 * ======================================== */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 48px; }
.pagination a, .pagination span {
  display: flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; padding: 0 12px;
  border: 1px solid var(--line); border-radius: 8px;
  color: var(--ink); font-size: 14px; text-decoration: none;
}
.pagination a:hover { border-color: var(--brand); color: var(--brand); }
.pagination .current { background: var(--brand); color: #fff; border-color: var(--brand); }

/* ========================================
 * 单页布局（主内容+侧边栏）
 * ======================================== */
.single-layout { display: grid; grid-template-columns: 1fr 300px; gap: 48px; align-items: start; }
.single-main { min-width: 0; }
.single-sidebar { position: sticky; top: calc(var(--header-h) + 24px); }
@media (max-width: 1024px) { .single-layout { grid-template-columns: 1fr; } .single-sidebar { position: static; } }

.single-hero-img { margin-bottom: 32px; border-radius: var(--radius); overflow: hidden; }
.single-hero-img img { width: 100%; aspect-ratio: 16/7; object-fit: cover; }
.single-header { margin-bottom: 24px; }
.single-header h1 { margin: 0 0 12px; font-size: clamp(26px, 4vw, 38px); color: var(--brand-dark); }
.single-body { font-size: 16px; line-height: 1.85; }
.single-body h2 { color: var(--brand-dark); font-size: 24px; margin: 40px 0 16px; padding-top: 20px; border-top: 1px solid var(--line); }
.single-body h3 { color: var(--brand); font-size: 19px; margin: 28px 0 12px; }
.single-body img { border-radius: var(--radius-sm); margin: 20px 0; }
.single-body table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.single-body th, .single-body td { padding: 10px 14px; border: 1px solid var(--line); text-align: left; }
.single-body th { background: var(--brand-pale); font-weight: 700; color: var(--brand-dark); }
.single-cta { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--line); }

/* 信息表 */
.info-table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.info-table th, .info-table td { padding: 12px 16px; border: 1px solid var(--line); text-align: left; font-size: 14px; }
.info-table th { width: 140px; background: #f7fafb; color: var(--brand-dark); font-weight: 700; white-space: nowrap; }

/* 文章元信息 */
.article-meta { display: flex; flex-wrap: wrap; gap: 16px; font-size: 13px; color: var(--muted); }
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.article-tags .tag { padding: 4px 12px; background: var(--brand-pale); border-radius: 999px; color: var(--brand); font-size: 12px; font-weight: 600; text-decoration: none; }
.article-tags .tag:hover { background: var(--brand); color: #fff; }

/* 侧边栏小工具 */
.sidebar-widget { margin-bottom: 24px; padding: 20px; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); }
.sidebar-widget h4 { margin: 0 0 12px; font-size: 15px; color: var(--brand-dark); }
.xzy-related-list { list-style: none; margin: 0; padding: 0; }
.xzy-related-list li { padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.xzy-related-list li:last-child { border-bottom: none; }
.xzy-related-list a { color: var(--ink); text-decoration: none; }
.xzy-related-list a:hover { color: var(--brand); }
.xzy-cta-widget { background: var(--brand-pale); border-color: transparent; }
.xzy-cta-widget p { font-size: 14px; color: var(--muted); margin: 8px 0 16px; }
.xzy-cta-phone { font-size: 13px; margin-top: 12px; }

/* 证据报告编号 */
.evidence-report-no { display: inline-block; padding: 4px 12px; background: var(--brand-pale); border-radius: 6px; color: var(--brand); font-size: 13px; font-weight: 700; }

/* 合规警告框 */
.callout-warning { margin: 24px 0; padding: 16px 20px; border-left: 4px solid #e2a52b; background: var(--warm); border-radius: 0 10px 10px 0; font-size: 14px; color: #62410a; }

/* 案例标签 */
.case-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.case-tag { padding: 4px 12px; background: var(--brand-pale); border-radius: 999px; font-size: 12px; font-weight: 600; color: var(--brand); }
.case-section { margin: 32px 0; }
.case-result { padding: 20px; background: #f0faf0; border-radius: var(--radius-sm); border: 1px solid #c8e6c8; }

/* 方案行业标签 */
.solution-industry-tag { display: inline-block; padding: 4px 14px; background: var(--cyan); color: #fff; border-radius: 999px; font-size: 13px; font-weight: 700; }

/* 设备流程 */
.equipment-flow { margin: 32px 0; }
.equipment-flow .flow-steps { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.equipment-flow .flow-step { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 16px 20px; background: var(--brand-pale); border-radius: 12px; text-align: center; min-width: 100px; font-size: 14px; font-weight: 600; }
.equipment-flow .flow-num { display: flex; align-items: center; justify-content: center; width: 28px; height: 28px; background: var(--brand); color: #fff; border-radius: 50%; font-size: 13px; font-weight: 800; }
.equipment-flow .flow-arrow { color: var(--cyan); font-size: 20px; font-weight: 700; }
@media (max-width: 768px) { .equipment-flow .flow-steps { flex-direction: column; } .equipment-flow .flow-arrow { transform: rotate(90deg); } }

/* 滚动动画 */
.animate-ready { opacity: 0; transform: translateY(20px); transition: opacity .5s, transform .5s; }
.animate-in { opacity: 1; transform: translateY(0); }

/* 头部滚动状态 */
.site-header.scrolled { box-shadow: 0 2px 20px rgba(17,53,65,.08); }

/* ========================================
 * 首页 V2 - 匹配参考图设计
 * ======================================== */

/* Hero V2 */
.hero-v2 {
    position: relative; min-height: 600px;
    display: flex; align-items: center;
    padding: 100px 0 80px; overflow: hidden;
    background: linear-gradient(135deg, #0a1628 0%, #0d2137 30%, #0f2d4a 60%, #0a1e35 100%);
}
.hero-v2-bg { position: absolute; inset: 0; }
.hero-water-drop {
    position: absolute; right: 10%; top: 50%; transform: translateY(-50%);
    width: 350px; height: 450px; opacity: 0.85;
}
.hero-water-drop svg { width: 100%; height: 100%; }
.hero-v2-content { position: relative; z-index: 2; max-width: 600px; }
.hero-v2-title {
    margin: 0; color: #fff;
    font-size: clamp(36px, 5.5vw, 56px); line-height: 1.2;
    letter-spacing: -0.02em; font-weight: 800;
}
.hero-v2-highlight { color: #4fc3f7; }
.hero-v2-subtitle-en {
    margin: 20px 0 0; color: #4fc3f7;
    font-size: 16px; font-weight: 700; letter-spacing: 0.15em;
}
.hero-v2-tagline {
    margin: 12px 0 0; color: rgba(255,255,255,0.7);
    font-size: 16px; letter-spacing: 0.08em;
}
@media (max-width: 768px) {
    .hero-water-drop { right: 50%; transform: translate(50%, -50%); width: 200px; height: 280px; opacity: 0.4; }
}

/* 核心参数指标 */
.metrics-bar {
    padding: 0; margin-top: -40px; position: relative; z-index: 3;
}
.metrics-grid {
    display: grid; grid-template-columns: repeat(4, 1fr);
    background: #fff; border-radius: var(--radius);
    padding: 32px 24px; box-shadow: var(--shadow);
    border: 1px solid var(--line);
}
.metric-item {
    display: flex; flex-direction: column; align-items: center;
    text-align: center; gap: 6px; padding: 16px 8px;
}
.metric-item + .metric-item { border-left: 1px solid var(--line); }
.metric-label { font-size: 13px; color: var(--muted); font-weight: 600; }
.metric-value { font-size: clamp(24px, 3vw, 32px); font-weight: 900; color: var(--brand-dark); line-height: 1.2; }
.metric-desc { font-size: 13px; color: var(--muted); }
@media (max-width: 768px) {
    .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 0; }
    .metric-item + .metric-item { border-left: none; }
    .metric-item:nth-child(odd) { border-right: 1px solid var(--line); }
    .metric-item:nth-child(1), .metric-item:nth-child(2) { border-bottom: 1px solid var(--line); }
}

/* 三效联动 */
.section-mechanism { background: #fff; }
.text-center { text-align: center; }
.mechanism-grid { gap: 28px; }
.mechanism-card { text-align: center; padding: 36px 28px; }
.mechanism-icon { margin-bottom: 20px; }
.mechanism-card h3 { margin: 0 0 10px; font-size: 19px; color: var(--brand-dark); }
.mechanism-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }

/* 应用场景 */
.applications-grid { gap: 20px; }
.application-card { padding: 0; overflow: hidden; text-align: center; }
.application-img {
    height: 160px; display: flex; align-items: center; justify-content: center;
}
.application-img svg { width: 100px; height: 80px; }
.application-card h3 { margin: 16px 0 6px; font-size: 17px; color: var(--brand-dark); }
.application-card p { margin: 0 0 20px; color: var(--muted); font-size: 14px; }

/* PICC 保险承保 */
.section-picc {
    background: linear-gradient(135deg, #e8edf5 0%, #d5dce8 100%);
    padding: 80px 0;
}
.picc-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}
.picc-info { flex: 1; }
.picc-info h2 {
    font-size: clamp(24px, 3vw, 32px);
    color: var(--brand-dark);
    margin: 0 0 12px;
}
.picc-info p {
    font-size: 17px;
    color: var(--muted);
    margin: 0 0 24px;
}
.picc-badge {
    flex: 0 0 auto;
}
@media (max-width: 768px) {
    .picc-wrapper {
        flex-direction: column;
        text-align: center;
    }
    .picc-info p { margin-left: auto; margin-right: auto; }
}

/* 页脚 Logo 英文 */