:root {
  --brand: #1f69e0;
  --brand-hover: #3a81f0;
  --brand-deep: #1654c0;
  --brand-soft: #eef4fe;
  --brand-softer: #f5f9ff;
  --text-main: #1f2329;
  --text-sec: #4e5969;
  --text-weak: #86909c;
  --page-bg: #f7f8fa;
  --card-bg: #fff;
  --gray-bg: #fafbfc;
  --border-light: #edeff2;
  --border-normal: #e5e6eb;
  --success: #00b578;
  --warning: #ffb020;
  --r-lg: 24px;
  --r-md: 20px;
  --r-sm: 16px;
  --r-btn: 12px;
  --shadow-card: 0 8px 24px rgba(31, 35, 41, .06);
  --shadow-hover: 0 12px 32px rgba(31, 35, 41, .1);
  --content-width: 1140px;
  --container-pad: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--page-bg);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { cursor: pointer; border: 0; background: none; }
img { display: block; max-width: 100%; height: auto; }
.container {
  max-width: calc(var(--content-width) + (var(--container-pad) * 2));
  margin: 0 auto;
  padding: 0 var(--container-pad);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.9);
  border-bottom: 1px solid var(--border-light);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
}
.nav {
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 34px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
}
.logo-mark {
  width: 70px;
  
}
.logo-sub { color: var(--text-weak); font-size: 14px; font-weight: 500; }
.nav-menu { display: flex; align-items: center; gap: 28px; flex: 1; }
.nav-menu a {
  color: var(--text-main);
  font-size: 15px;
  font-weight: 500;
  line-height: 72px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.nav-menu a:after {
  content: "";
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  opacity: .56;
  transition: transform .2s;
}
.nav-menu a:hover:after { transform: rotate(225deg) translateY(-1px); }
.nav-menu a[href$="sitemap.html"]:after { display: none; }
.nav-menu a:hover { color: var(--brand); }






/* === 导航下拉菜单（基于现有 .nav-menu a:after 箭头扩展） === */
      .nav-menu .nav-item { position: relative; }
      .nav-menu .nav-dropdown {
        position: absolute;
        top: 100%;
        left: 50%;
        min-width: 220px;
        background: #fff;
        border: 1px solid var(--border-light);
        border-radius: 12px;
        box-shadow: var(--shadow-card);
        padding: 8px;
        display: none;
        z-index: 60;
        transform: translateX(-50%);
      }
      .nav-menu .nav-dropdown a {
        display: block;
        line-height: 1.5;
        padding: 9px 12px;
        font-size: 14px;
        font-weight: 400;
        color: var(--text-sec);
        border-radius: 8px;
        white-space: nowrap;
      }
      .nav-menu .nav-dropdown a:hover {
        background: var(--brand-soft);
        color: var(--brand);
      }
      /* 二级菜单项不要一级菜单那个箭头 */
      .nav-menu .nav-dropdown a:after { display: none; }
      /* hover / 键盘焦点展开 */
      .nav-menu .nav-item:hover .nav-dropdown,
      .nav-menu .nav-item:focus-within .nav-dropdown { 
          display: flex;
        list-style: none; 
          margin-top: 0;
      }
      /* 无二级的一级菜单项去掉箭头 */
      .nav-menu a.no-caret:after { display: none; }

      /* 移动端：下拉改成静态展开（点击切换），避免 hover 在触屏无效 */
      @media (max-width: 760px) {
        .nav-menu .nav-dropdown {
          position: static;
          box-shadow: none;
          border: 0;
          border-radius: 0;
          padding: 0 0 0 16px;
          grid-column: 1 / -1;
          display: none;
        }
        .nav-menu .nav-item.expanded .nav-dropdown { display: block; }
      }











.nav-right { display: flex; align-items: center; gap: 12px; }
.icon-only { width: 38px; padding: 0; }
.mobile-toggle { display: none; width: 40px; height: 40px; border-radius: 12px; background: var(--brand-soft); color: var(--brand); }
.mobile-toggle span, .mobile-toggle span:before, .mobile-toggle span:after {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: currentColor;
  border-radius: 2px;
  content: "";
}
.mobile-toggle span:before { transform: translateY(-6px); }
.mobile-toggle span:after { transform: translateY(4px); }

.btn-primary, .btn-outline, .btn-ghost, .btn-soft {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 38px;
  padding: 9px 18px;
  border-radius: var(--r-btn);
  font-size: 14px;
  font-weight: 600;
  transition: background .2s, border-color .2s, color .2s, transform .15s;
}
.btn-primary { color: #fff; background: var(--brand); box-shadow: 0 4px 12px rgba(31,105,224,.28); }
.btn-primary:hover { background: var(--brand-hover); }
.btn-outline { color: var(--text-main); background: #fff; border: 1px solid var(--border-normal); }
.btn-outline:hover { color: var(--brand); border-color: var(--brand); }
.btn-ghost { color: var(--text-main); background: transparent; }
.btn-ghost:hover { background: var(--border-light); }
.btn-soft { color: var(--brand); background: var(--brand-soft); }
.btn-soft:hover { color: #fff; background: var(--brand); }
.btn-block { width: 100%; }
.icon {
  width: 1em;
  height: 1em;
  display: inline-block;
  vertical-align: -0.12em;
}
.svg-icon {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  vertical-align: -3px;
}

.top-products {
  background:
    radial-gradient(900px 220px at 92% -40%, rgba(31,105,224,.1), transparent 60%),
    linear-gradient(180deg, #eef4fe 0%, #fff 100%);
  padding: 36px 0 40px;
  border-bottom: 1px solid var(--border-light);
}
.section-head, .tp-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 20px;
}
.tp-title { display: flex; align-items: center; gap: 10px; }
.dot {
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: linear-gradient(135deg,#1f69e0,#5ba3ff);
  color: #fff;
  display: inline-grid;
  place-items: center;
  font-size: 12px;
}
.section-title, .tp-title h2 {
  margin: 0;
  font-size: 22px;
  line-height: 1.3;
}
.section-sub, .tp-sub { color: var(--text-weak); font-size: 14px; font-weight: 400; }
.view-all { color: var(--text-sec); font-size: 14px; white-space: nowrap; }
.view-all:hover { color: var(--brand); }
.tp-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; }
.tp-card, .eco-card, .sol-card, .res-card, .rel-card, .side-card, .lead-card {
  background: var(--card-bg);
  border: 1px solid var(--border-light);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.tp-card {
  border-radius: var(--r-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
}
.tp-card:after {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(31,105,224,.1), transparent 70%);
}
.tp-card:hover, .eco-card:hover, .sol-card:hover, .res-card:hover, .rel-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}
.product-icon, .eco-logo, .sol-ic, .quick-icon {
  display: inline-grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
}
.product-icon { width: 52px; height: 52px; border-radius: 16px; font-size: 22px; }
// .pi-doc { background: linear-gradient(135deg,#2f88ff,#5fa8ff); }
.pi-sheet { background: linear-gradient(135deg,#00b578,#3dd598); }
.pi-slide { background: linear-gradient(135deg,#ff7a45,#ffa872); }
.pi-ai { background: linear-gradient(135deg,#7b5bff,#b08bff); }
.pi-teams { background: linear-gradient(135deg,#1f69e0,#5ba3ff); }
.tp-name { font-size: 16px; font-weight: 700; }
.tp-desc { 
    color: var(--text-sec); 
    font-size: 13px; 
    min-height: 42px; 
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-wrap { padding: 32px 0 60px; }
.breadcrumb { margin-bottom: 14px; color: var(--text-weak); font-size: 13px; display: flex; flex-wrap: wrap; gap: 6px; }
.breadcrumb a:hover { color: var(--brand); }
.layout { display: grid; grid-template-columns: minmax(0, 868px) 320px; gap: 40px; align-items: start; }
.article-wrap > .zone,
.article-wrap > .cta {
  max-width: 1140px;
  margin-left: 0;
  margin-right: auto;
}
.article-h1 {
  margin: 0 0 14px;
  color: var(--text-main);
  font-size: 36px;
  line-height: 1.3;
  font-weight: 700;
}
.article-lead { margin: 0 0 18px; color: var(--text-sec); font-size: 15px; line-height: 1.85; }
.meta-row { display: flex; gap: 12px 18px; flex-wrap: wrap; color: var(--text-weak); font-size: 13px; margin-bottom: 16px; }
.meta-row span { display: inline-flex; align-items: center; gap: 5px; }
.tags, .tabs, .kw-wrap { display: flex; flex-wrap: wrap; gap: 8px; }
.tags { margin-bottom: 24px; }
.chip, .tab {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border-radius: 999px;
  background: var(--gray-bg);
  border: 1px solid var(--border-light);
  color: var(--text-sec);
  font-size: 12px;
}
.chip { padding: 4px 12px; }
.tab { padding: 7px 16px; cursor: pointer; }
.chip:hover, .tab:hover, .tab.active { color: var(--brand); background: var(--brand-soft); border-color: #c7dbf8; }

.key-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--r-lg);
  padding: 26px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 28px;
  align-items: center;
  overflow: hidden;
  position: relative;
}
.key-card:before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg,#1f69e0,#5ba3ff);
}
.key-card h2 { margin: 0 0 14px; font-size: 16px; display: flex; gap: 8px; align-items: center; }
.kc-badge { padding: 2px 8px; border-radius: 999px; background: var(--brand-soft); color: var(--brand); font-size: 11px; }
.key-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.key-list li { color: var(--text-sec); line-height: 1.7; display: flex; gap: 10px; }
.check { color: var(--brand); font-weight: 800;margin-right: 5px; }
.mock-illu {
  min-height: 220px;
  border-radius: 16px;
  border: 1px solid var(--border-light);
  background: radial-gradient(140% 80% at 10% 0%, rgba(31,105,224,.12), transparent 55%), linear-gradient(180deg,#f5f9ff,#f4f6fa);
  padding: 14px;
}
.mock-bars span { display: block; height: 8px; border-radius: 5px; background: #e8ecf2; margin-bottom: 10px; }
.mock-bars span:nth-child(1) { width: 44%; background: #b8d1f6; }
.mock-bars span:nth-child(2) { width: 74%; }
.mock-bars span:nth-child(3) { width: 58%; }
.mock-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-top: 12px; }
.mock-grid span { height: 68px; border-radius: 12px; background: #fff; border: 1px solid var(--border-light); display: grid; place-items: center; color: var(--brand); font-weight: 700; }
.mock-grid span:first-child { color: #fff; border: 0; background: linear-gradient(135deg,#1f69e0,#5ba3ff); }

.prose { margin-top: 40px; color: var(--text-main); }
.prose>h2 {
  margin: 42px 0 16px;
  font-size: 24px;
  line-height: 1.35;
  scroll-margin-top: 96px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.prose>h2 h2 {
    margin: -5px 16px 0;
    margin: 2px 0 0;
    font-size: 20px;
}
.prose h3 { margin: 24px 0 10px; font-size: 18px; }
.prose p { margin: 0 0 14px; color: var(--text-sec); font-size: 15px; line-height: 1.9; }
.prose ul, .prose ol { color: var(--text-sec); font-size: 15px; line-height: 1.85; padding-left: 22px; }
.num { flex: 0 0 auto; width: 28px; 
height: 28px; border-radius: 8px; 
background: var(--brand-soft); color: var(--brand); 
display: inline-grid; place-items: center; 
font-size: 13px; 
}
.fig {
  margin: 20px 0 8px;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--border-light);
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg,#eef2f7,#f7f8fa);
  position: relative;
}
.figcaption { color: var(--text-weak); font-size: 12px; text-align: center; margin: 8px 0 18px; }
.scene-meeting { position: absolute; inset: 0; padding: 18px; display: grid; grid-template-columns: 220px 1fr; gap: 14px; }
.scene-meeting.scene-single { grid-template-columns: 1fr; }
.scene-left, .scene-right { display: flex; flex-direction: column; gap: 10px; }
.vid {
  flex: 1;
  min-height: 92px;
  border-radius: 12px;
  background: linear-gradient(135deg,#d6deea,#e9eef5);
  border: 1px solid var(--border-light);
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 10px;
}
.vid:after { content: ""; position: absolute; right: 10px; top: 10px; width: 10px; height: 10px; border-radius: 50%; background: var(--brand); }
.avatar-dot { position: absolute; left: 50%; top: 44%; transform: translate(-50%, -50%); width: 42px; height: 42px; border-radius: 50%; background: linear-gradient(135deg,#5ba3ff,#b8d1f6); }
.name-tag { position: relative; z-index: 1; color: #fff; background: rgba(0,0,0,.35); border-radius: 6px; padding: 2px 8px; font-size: 11px; }
.mini-tab-row { display: flex; gap: 6px; }
.mini-tab { height: 20px; width: 70px; border-radius: 6px; background: #fff; border: 1px solid var(--border-light); }
.mini-tab.active { background: var(--brand); border-color: transparent; }
.doc-screen { flex: 1; background: #fff; border: 1px solid var(--border-light); border-radius: 10px; padding: 14px; display: flex; flex-direction: column; gap: 8px; }
.doc-screen span { height: 6px; border-radius: 4px; background: #e8ecf2; }
.doc-screen span:nth-child(1), .doc-screen span:nth-child(7) { width: 70%; }
.doc-screen span:nth-child(2), .doc-screen span:nth-child(6) { width: 90%; }
.doc-screen span:nth-child(3) { width: 50%; background: #ffc7b3; }
.doc-screen span:nth-child(4), .doc-screen span:nth-child(8) { width: 80%; }
.doc-screen span:nth-child(5) { width: 60%; }
.ability-grid, .case-grid, .quick-lead-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 16px 0 22px; }
.ability-card, .case-card, .lead-card {
  border-radius: var(--r-sm);
  padding: 18px;
}
.ability-card { display: flex; gap: 12px; align-items: flex-start; }
.ability-card:hover { border-color: #c7dbf8; background: var(--brand-softer); }
.ability-ic, .quick-icon { flex: 0 0 auto; width: 36px; height: 36px; border-radius: 10px; background: var(--brand-soft); color: var(--brand); }
.ability-card strong, .lead-card strong { display: block; margin-bottom: 3px; font-size: 14px; }
.ability-card span, .lead-card span { color: var(--text-weak); font-size: 12px; line-height: 1.65; }
.lead-card .quick-icon { color: var(--brand); font-size: 14px; line-height: 1; }
.case-card .industry { display: inline-flex; padding: 3px 10px; border-radius: 999px; background: var(--brand-soft); color: var(--brand); font-size: 11px; }
.case-card h3 { margin: 10px 0 6px; font-size: 15px; }
.case-card p { font-size: 12px; line-height: 1.7; margin-bottom: 10px; }
.kpi { border-top: 1px dashed var(--border-light); padding-top: 10px; color: var(--text-weak); font-size: 12px; }
.kpi strong { color: var(--brand); font-size: 22px; margin-right: 6px; }

.lead-inline {
  margin: 26px 0;
  padding: 22px;
  border-radius: var(--r-md);
  border: 1px solid #c7dbf8;
  background: linear-gradient(135deg,#eef4fe,#fff);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: center;
}
.lead-inline h3 { margin: 0 0 6px; }
.lead-inline p { margin: 0; font-size: 14px; }
.lead-inline .quick-icon {
  width: 28px;
  height: 28px;
  margin-right: 8px;
  vertical-align: -7px;
  color: var(--brand);
  background: var(--brand-soft);
}
.lead-inline-qr { grid-template-columns: 1fr 112px; }
.qr-box {
  width: 112px;
  height: 112px;
  padding: 10px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-card);
}

.faq-list { display: flex; flex-direction: column; gap: 10px; margin-top: 14px; }
.faq-item { background: #fff; border: 1px solid var(--border-light); border-radius: var(--r-sm); overflow: hidden; }
.faq-item[open] { border-color: #b8d1f6; box-shadow: 0 4px 14px rgba(31,105,224,.08); }
.faq-item summary { list-style: none; cursor: pointer; padding: 16px 20px; font-size: 15px; font-weight: 600; display: flex; justify-content: space-between; gap: 16px; }
.faq-item summary::-webkit-details-marker { display: none; }
.answer { padding: 0 20px 18px; color: var(--text-sec); line-height: 1.9; }

.sidebar { position: sticky; top: 96px; display: flex; flex-direction: column; gap: 16px; }
.side-card { border-radius: var(--r-md); padding: 20px; }
.side-card.brand { background: linear-gradient(160deg,#eef4fe,#fff 70%); border-color: #c7dbf8; overflow: hidden; position: relative; }
.side-card h2, .side-card h3 { margin: 0 0 8px; font-size: 18px; }
.side-card p { color: var(--text-sec); font-size: 13px; line-height: 1.7; margin: 0 0 14px; }
.side-card ul { margin: 0 0 16px; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; color: var(--text-sec); font-size: 13px; }
.side-title { margin: 0 0 12px; display: flex; gap: 8px; align-items: center; font-size: 14px; }
.toc-list { border-left: 1px solid var(--border-light); }
.toc-list a { display: block; padding: 8px 12px; border-left: 2px solid transparent; margin-left: -1px; color: var(--text-sec); line-height: 1.5; }
.toc-list a:hover, .toc-list a.active { color: var(--brand); background: var(--brand-soft); border-left-color: var(--brand); border-radius: 0 8px 8px 0; }
.dl-list { display: flex; flex-direction: column; gap: 10px; }
.dl-item { display: flex; align-items: center; gap: 10px; padding: 10px; border-radius: 12px; cursor: pointer; width: 100%; text-align: left; }
.dl-item:hover { background: var(--gray-bg); }
.dl-ic { width: 38px; height: 38px; flex: 0 0 auto; border-radius: 10px; display: grid; place-items: center; color: #fff; font-size: 10px; font-weight: 700; 
color: var(--brand);
    background: linear-gradient(135deg, #eef4fe, #c7dbf8);
}
.dl-ic .svg-icon{
    width: 25px;
    height: 25px;
}
.pdf { background: linear-gradient(135deg,#1f69e0,#5ba3ff); }
.xls { background: linear-gradient(135deg,#00b578,#3dd598); }
.docx { background: linear-gradient(135deg,#2f88ff,#5fa8ff); }
.dl-meta { min-width: 0; display: flex; flex-direction: column; gap: 2px; align-items: flex-start; }
.dl-title { display: block; max-width: 100%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text-main); font-size: 13px; font-weight: 600; line-height: 1.5; }
.dl-sub { display: block; color: var(--text-weak); font-size: 11px; line-height: 1.55; white-space: normal; }
.dl-arrow { margin-left: auto; color: var(--text-weak); display: inline-grid; place-items: center; width: 22px; height: 22px; flex: 0 0 auto; }
.dl-item:hover .dl-arrow { color: var(--brand); }
.consult-card { background: linear-gradient(160deg,#eef4fe,#fff); border: 1px solid #c7dbf8; border-radius: var(--r-md); padding: 18px; display: flex; gap: 14px; align-items: self-start; }
.consult-avatar { width: 56px; height: 56px; border-radius: 14px; background: linear-gradient(135deg,#1f69e0,#5ba3ff); color: #fff; display: grid; place-items: center; font-size: 22px; }

.zone { background: #fff; border: 1px solid var(--border-light); border-radius: var(--r-lg); padding: 32px; margin-top: 24px; }
.zone.soft { background: linear-gradient(180deg,#fafbfc,#fff); }
.eco-grid { display: grid; grid-template-columns: minmax(0, 2.2fr) minmax(0, 1fr); grid-template-rows: repeat(2, minmax(124px, auto)); gap: 16px; margin-top: 20px; align-items: stretch; }
.eco-grid[hidden] { display: none !important; }
.eco-card { border-radius: var(--r-md); padding: 18px; position: relative; }
.eco-card.featured {
  grid-row: span 2;
  min-height: 330px;
  padding: 30px;
  background: linear-gradient(160deg,#fff,#eef4fe);
  border-color: #b8d1f6;
  box-shadow: 0 12px 34px rgba(31,105,224,.12);
}
.hot-tag {
  position: absolute;
  right: 18px;
  top: 18px;
  padding: 3px 10px;
  border-radius: 999px;
  background: #ff5c39;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
}
.eco-head { display: flex; gap: 10px; align-items: center; }
.eco-logo { width: 40px; height: 40px; border-radius: 12px; font-size: 15px;  }
.featured .eco-logo { width: 58px; height: 58px; border-radius: 16px; font-size: 22px; }
.eco-name { font-size: 14px; font-weight: 700;margin: 0; }
.featured .eco-name { font-size: 24px; margin: 0;}
.eco-cat { color: var(--text-weak); font-size: 11px; }
.eco-desc { margin: 12px 0 14px; color: var(--text-sec); font-size: 12px; line-height: 1.7; min-height: 42px; }
.featured .eco-desc { font-size: 15px; min-height: auto; line-height: 1.85; margin-top: 18px; }
.eco-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.eco-thumbs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 20px 0 6px;
}
.eco-thumb {
  min-height: 92px;
  border-radius: 16px;
  border: 1px solid #d8e6fb;
  background: #fff;
  padding: 12px;
  box-shadow: 0 6px 18px rgba(31,105,224,.06);
}
.eco-thumb span {
  display: block;
  margin-bottom: 10px;
  color: var(--text-main);
  font-size: 12px;
  font-weight: 700;
}
.eco-thumb i {
  display: block;
  height: 7px;
  border-radius: 999px;
  background: #e8ecf2;
  margin-top: 7px;
}
.eco-thumb i:nth-child(2) { width: 78%; background: #b8d1f6; }
.eco-thumb i:nth-child(3) { width: 58%; }
.eco-thumb i:nth-child(4) { width: 88%; }

.sol-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 20px; }
.sol-card { border-radius: var(--r-md); padding: 22px; display: flex; gap: 14px; align-items: flex-start; }
.sol-ic { width: 48px; height: 48px; flex: 0 0 auto; border-radius: 14px; color: var(--brand); background: linear-gradient(135deg,#eef4fe,#c7dbf8); }
.sol-ic .svg-icon { width: 22px; height: 22px; }
.sol-t { font-size: 16px; font-weight: 700; margin-bottom: 6px;margin-top: 0; }
.sol-d { color: var(--text-weak); font-size: 13px; line-height: 1.7; }
.res-grid { display: grid; grid-template-columns: repeat(4, minmax(230px, 1fr)); gap: 16px; margin-top: 20px; overflow-x: auto; padding-bottom: 6px; }
.res-grid[hidden] { display: none !important; }
.res-card { border-radius: var(--r-md); overflow: hidden; cursor: pointer; }
.res-thumb { aspect-ratio: 16 / 10; display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 24px; background: linear-gradient(135deg,#1f69e0,#5ba3ff); }
.res-body { padding: 14px 16px 16px; }
.res-tag { display: inline-block; color: var(--brand); background: var(--brand-soft); border-radius: 999px; padding: 2px 8px; font-size: 11px; font-weight: 600; }
.res-t { margin: 8px 0 6px; font-weight: 600; line-height: 1.5; }
.res-meta { color: var(--text-weak); font-size: 11px; display: flex; gap: 10px; }
.rel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 20px; }
.rel-card { border-radius: var(--r-md); padding: 14px; display: grid; grid-template-columns: 96px 1fr; gap: 14px; }
.rel-thumb { aspect-ratio: 1; border-radius: 12px; 
display: grid; place-items: center; color: #fff; font-weight: 700; 
padding: 0 5px;
}
.rel-title { font-weight: 700; line-height: 1.55; display: -webkit-box;
-webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
margin-top: 0;
    
}
.rel-excerpt { color: var(--text-weak); font-size: 12px; line-height: 1.6; margin: 6px 0 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.rel-meta { color: var(--text-weak); font-size: 11px; display: flex; gap: 10px; }

.cta {
  margin-top: 28px;
  border-radius: var(--r-lg);
  background: radial-gradient(400px 200px at 95% 0%, rgba(31,105,224,.18), transparent 60%), linear-gradient(135deg,#deeafe,#f0f6ff 60%,#fff);
  border: 1px solid #c7dbf8;
  padding: 44px 48px;
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 32px;
  align-items: center;
}
.cta-illu { width: 120px; height: 120px; border-radius: 24px; background: linear-gradient(135deg,#1f69e0,#5ba3ff); display: grid; place-items: center; color: #fff; font-size: 46px; transform: rotate(-6deg); }
.cta h2 { margin: 0 0 8px; font-size: 28px; }
.cta p { margin: 0 0 14px; color: var(--text-sec); }
.cta-points { display: flex; gap: 18px; flex-wrap: wrap; color: var(--text-sec); font-size: 13px; }
.cta-points span { display: inline-flex; align-items: center; gap: 4px; }
.cta-points .svg-icon { color: var(--brand); }
.cta-actions { display: flex; flex-direction: column; gap: 10px; }

.footer { margin-top: 48px; padding: 48px 0 28px; background: #fff; border-top: 1px solid var(--border-light); }
.foot-grid { display: grid; grid-template-columns: 1.2fr repeat(4, 1fr) .9fr; gap: 32px; }
.foot-col h2, .foot-col h3 { margin: 0 0 14px; font-size: 14px; }
.foot-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.foot-col a, .foot-col p { color: var(--text-weak); font-size: 13px; line-height: 1.8; }
.foot-col a:hover { color: var(--brand); }
.hot-kw { margin-top: 24px; padding-top: 16px; border-top: 1px dashed var(--border-light); color: var(--text-weak); font-size: 12px; line-height: 2; }
.hot-kw strong { color: var(--text-sec); margin-right: 10px; }
.hot-kw a { margin-right: 14px; }
.foot-bottom { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--border-light); display: flex; justify-content: space-between; gap: 20px; color: var(--text-weak); font-size: 12px; }
.foot-bottom .links { display: flex; gap: 18px; flex-wrap: wrap; }
.disclaimer {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-light);
  color: var(--text-weak);
  font-size: 12px;
  line-height: 1.8;
}
.disclaimer a { color: var(--brand); }

.float-tools { 
        position: fixed;
    right: 16px;
    bottom: 90px;
    z-index: 40;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.ft-btn { width: 48px; height: 48px; border-radius: 14px; background: #fff; border: 1px solid var(--border-light); display: grid; place-items: center; color: var(--text-sec); box-shadow: var(--shadow-card); font-size: 20px; }
.ft-btn:hover { color: var(--brand); border-color: #b8d1f6; transform: translateY(-1px); }
.ft-btn.primary { color: #fff; background: var(--brand); border-color: transparent; }
.ft-btn[data-show-phone]{
    position: relative;
}
.show_phone{
    position: absolute;
    right: 100%;
    padding: 10px;
    white-space: nowrap;
    color: #333;
    font-size: 14px;
    font-weight: bolder;
    opacity: 0;
    transition: 1s ease;
    bottom: -200%;

}
.phone_body{
    background: #fff;
    box-shadow: 0 0 10px 2px #eee;
    padding: 10px;
    border-radius: 12px;
}
.phone_body p,.phone_body h3{
    margin: 0;
}
.ft-btn[data-show-phone]:hover .show_phone{
   display: block;
    opacity: 1;
    bottom: -22px;
}

.modal-mask, .chat-panel { display: none; }
.modal-mask.open {
  display: flex;
  position: fixed;
  inset: 0;
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(12, 18, 28, .48);
}
.lead_modal {
  width: min(920px, 100%);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(12,18,28,.24);
  display: grid;
  grid-template-columns: 1fr 380px;
  overflow: hidden;
}
.modal-info { padding: 34px; background: linear-gradient(160deg,#eef4fe,#fff); border-right: 1px solid var(--border-light); }
.modal-info h2 { margin: 0 0 10px; font-size: 26px; }
.modal-info p { color: var(--text-sec); margin: 0 0 18px; }
.modal-info ul { margin: 0; padding-left: 18px; color: var(--text-sec); line-height: 1.9; }
.modal-form { padding: 30px; position: relative; }
.modal-close { position: absolute; top: 16px; right: 16px; width: 36px; height: 36px; border-radius: 12px; background: var(--gray-bg); color: var(--text-sec); }
.field { margin-bottom: 14px; }
.field label { display: block; margin-bottom: 6px; color: var(--text-sec); font-size: 13px; font-weight: 600; }
.field input {
  width: 100%;
  height: 44px;
  border: 1px solid var(--border-normal);
  border-radius: 12px;
  padding: 0 12px;
  outline: 0;
}
.field input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(31,105,224,.12); }
.code-row { display: grid; grid-template-columns: 1fr 112px; gap: 10px; }
.form-note { color: var(--text-weak); font-size: 12px; line-height: 1.7; margin-top: 10px; }
.form-message { min-height: 22px; color: var(--success); font-size: 13px; margin-top: 10px; }
.chat-panel.open {
  display: block;
  position: fixed;
  right: 86px;
  bottom: 100px;
  z-index: 90;
  width: 340px;
  max-width: calc(100vw - 32px);
  border-radius: 20px;
  background: #fff;
  border: 1px solid var(--border-light);
  box-shadow: 0 18px 48px rgba(31,35,41,.18);
  overflow: hidden;
}
.chat-head { padding: 16px 18px; background: linear-gradient(135deg,#1f69e0,#5ba3ff); color: #fff; display: flex; justify-content: space-between; align-items: center; }
.chat-body { padding: 16px 18px; }
.chat-msg { border-radius: 14px; background: var(--gray-bg); padding: 12px; color: var(--text-sec); margin-bottom: 12px; }

.map-hero { padding: 44px 0 24px; background: linear-gradient(180deg,#eef4fe,#fff); border-bottom: 1px solid var(--border-light); }
.map-hero h1 { margin: 0 0 10px; font-size: 34px; }
.map-hero p { margin: 0; color: var(--text-sec); font-size: 15px; }
.map-banner {
  margin: 24px 0 16px;
  border-radius: 24px;
  overflow: hidden;
  background:
    radial-gradient(420px 220px at 88% 20%, rgba(255,255,255,.28), transparent 60%),
    linear-gradient(120deg, #1654c0, #1f69e0 58%, #5ba3ff);
  color: #fff;
  box-shadow: 0 16px 38px rgba(31,105,224,.18);
}
.map-banner-inner { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr); gap: 22px; padding: 34px; align-items: center; }
.map-banner h1 { margin: 0 0 10px; font-size: 38px; line-height: 1.2; }
.map-banner p { margin: 0 0 16px; color: #eaf2ff; font-size: 15px; line-height: 1.8; }
.search-wrap { display: flex; gap: 8px; max-width: 560px; }
.search-wrap input { flex: 1; min-width: 0; height: 44px; border: 0; border-radius: 999px; padding: 0 16px; outline: 0; color: var(--text-main); }
.search-wrap button { height: 44px; padding: 0 18px; border-radius: 999px; background: #fff; color: var(--brand); font-weight: 700; }
.hot-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.hot-tags span { font-size: 12px; padding: 3px 10px; border-radius: 999px; background: rgba(255,255,255,.18); }
.map-visual { min-height: 180px; border: 1px solid rgba(255,255,255,.22); border-radius: 18px; background: rgba(255,255,255,.1); padding: 18px; display: grid; gap: 10px; align-content: center; }
.map-visual span { display: block; height: 12px; border-radius: 999px; background: rgba(255,255,255,.38); }
.map-visual span:nth-child(1) { width: 48%; background: #fff; }
.map-visual span:nth-child(2) { width: 76%; }
.map-visual span:nth-child(3) { width: 62%; }
.channel-nav { display: flex; gap: 22px; overflow-x: auto; white-space: nowrap; background: #fff; border: 1px solid var(--border-light); border-radius: 14px; padding: 12px 16px; margin-bottom: 14px; }
.channel-nav a { position: relative; color: var(--text-sec); padding: 4px 0 8px; }
.channel-nav a:after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--brand); transform: scaleX(0); transform-origin: left; transition: transform .2s; }
.channel-nav a.is-active { color: var(--brand); font-weight: 700; }
.channel-nav a.is-active:after, .channel-nav a:hover:after { transform: scaleX(1); }
.ai-brief { background: #f8fbff; border: 1px dashed #c8d8f1; border-radius: 14px; padding: 14px 16px; margin-bottom: 16px; }
.ai-brief h2 { margin: 0 0 6px; color: var(--brand-deep); font-size: 16px; }
.ai-brief p { margin: 0; color: var(--text-sec); font-size: 13px; line-height: 1.7; }
.list-wrap { background: #fff; border: 1px solid var(--border-light); border-radius: 20px; padding: 20px; margin-bottom: 42px; }
.list-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 16px; }
.list-head h2 { margin: 0; font-size: 22px; }
.list-head p { margin: 0; color: var(--text-weak); font-size: 13px; }
.article-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.list-item { min-height: 246px; border: 1px solid var(--border-light); border-radius: 16px; background: #fbfdff; padding: 16px; display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s, border-color .2s; }
.list-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-card); border-color: #c7dbf8; }
.list-item .tag { align-self: flex-start; margin-bottom: 10px; color: var(--brand); background: var(--brand-soft); border-radius: 999px; padding: 2px 9px; font-size: 12px; font-weight: 600; }
.list-item h3 { margin: 0 0 8px; font-size: 17px; line-height: 1.48; color: var(--text-main); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.list-item p { margin: 0 0 10px; color: var(--text-sec); font-size: 13px; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.list-item .meta { margin-top: auto; color: var(--text-weak); font-size: 12px; display: flex; flex-wrap: wrap; gap: 8px; }
.list-item .open-link { margin-top: 12px; align-self: flex-start; color: var(--brand); font-weight: 600; font-size: 13px; }
.pagination { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 18px; }
.pagination button { height: 34px; min-width: 34px; padding: 0 10px; border: 1px solid #c7d8f2; background: #fff; border-radius: 9px; color: var(--text-sec); cursor: pointer; }
.pagination button.active { color: #fff; background: var(--brand); border-color: var(--brand); }
.pagination button:disabled { opacity: .45; cursor: not-allowed; }
.map-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding: 30px 0 60px; }
.map-card { background: #fff; border: 1px solid var(--border-light); border-radius: var(--r-md); padding: 22px; }
.map-card h2 { margin: 0 0 12px; font-size: 18px; }
.map-card ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.map-card a { color: var(--text-sec); }
.map-card a:hover { color: var(--brand); }
#tinet-chat-visitor{
    bottom: 260px !important;
}

@media (max-width: 1100px) {
  .article-wrap > .zone,
  .article-wrap > .cta { max-width: none; }
  .layout { grid-template-columns: 1fr; }
  .sidebar { position: static; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tp-grid { grid-template-columns: repeat(2, 1fr); }
  .res-grid { grid-template-columns: repeat(4, minmax(230px, 1fr)); }
  .eco-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .eco-card.featured { grid-column: span 2; grid-row: auto; }
  .foot-grid { grid-template-columns: repeat(3, 1fr); }
  .article-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  :root { --container-pad: 16px; }
  .nav { min-height: 62px; gap: 12px; }
  .mobile-toggle { display: inline-grid; place-items: center; margin-left: auto; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 62px;
    left: 0;
    right: 0;
    padding: 10px 16px 18px;
    background: #fff;
    border-bottom: 1px solid var(--border-light);
    box-shadow: var(--shadow-card);
  }
  .nav-menu.open { display: grid; grid-template-columns: repeat(2, 1fr); gap: 4px 16px; }
  .nav-menu a { line-height: 40px; }
  .nav-right .btn-ghost { display: none; }
  .nav-right .icon-only { display: inline-flex; }
  .nav-right .btn-primary { display: none; }
  .article-h1 { font-size: 28px; }
  .top-products { padding: 26px 0; }
  .tp-head, .section-head { align-items: flex-start; flex-direction: column; }
  .tp-grid, .ability-grid, .case-grid, .sol-grid, .rel-grid, .sidebar, .quick-lead-grid, .map-grid { grid-template-columns: 1fr; }
  .key-card, .lead-inline, .cta, .lead_modal { grid-template-columns: 1fr; }
  .mock-illu { min-height: 180px; }
  .scene-meeting { grid-template-columns: 1fr; }
  .scene-left { display: none; }
  .lead-inline-qr { grid-template-columns: 1fr; }
  .lead-inline .qr-box { justify-self: start; }
  .zone { padding: 22px; border-radius: 18px; }
  .eco-grid { grid-template-columns: 1fr; }
  .eco-card.featured { grid-column: auto; grid-row: auto; min-height: 280px; }
  .eco-thumbs { grid-template-columns: 1fr; }
  .map-banner-inner { grid-template-columns: 1fr; padding: 24px; }
  .map-banner h1 { font-size: 29px; }
  .map-visual { display: none; }
  .search-wrap { flex-direction: column; }
  .list-head { align-items: flex-start; flex-direction: column; }
  .article-list { grid-template-columns: 1fr; }
  .rel-card { grid-template-columns: 82px 1fr; }
  .cta { padding: 28px 22px; gap: 20px; }
  .cta-illu { width: 88px; height: 88px; font-size: 34px; }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .foot-brand, .foot-qr { grid-column: span 2; }
  .foot-bottom { flex-direction: column; }
  .float-tools { right: 14px; bottom: 82px; }
  .chat-panel.open { right: 16px; bottom: 82px; }
  .modal-info { display: none; }
}

@media (max-width: 420px) {
  .article-h1 { font-size: 24px; }
  .prose h2 { font-size: 20px; align-items: flex-start; }
  .tp-grid, .foot-grid { grid-template-columns: 1fr; }
  .foot-brand, .foot-qr { grid-column: auto; }
  .code-row { grid-template-columns: 1fr; }
  .modal-mask.open { padding: 14px; }
  .modal-form { padding: 26px 18px 20px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *:before, *:after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}