.page-block {
  padding-top: 32px !important;
  padding-bottom: 32px !important;
}
:root { --pri:#1e80ff; --pri-600:#1668d8; --text:#1f2d3d; --sub:#666; --bg:#fafafa; --line:#eee; --shadow:0 6px 20px rgba(30,128,255,0.08); }
html { min-height:100%; }
body { min-height:100vh; display:flex; flex-direction:column; }
* { box-sizing: border-box; }
body { font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","PingFang SC","Microsoft YaHei",sans-serif; margin:0; color:var(--text); background:#fff; }
a { color:var(--pri); text-decoration:none; }
header { position:-webkit-sticky; position:sticky; top:0; background:#fff; border-bottom:1px solid var(--line); z-index:20; width:100%; transition:box-shadow .2s ease; }
header.has-shadow { box-shadow:0 10px 25px rgba(15,23,42,.08); border-bottom-color:transparent; }
.nav-bar { width:100%; display:grid; grid-template-columns:auto minmax(0,1fr) auto; align-items:center; padding:0 16px; gap:16px; }
.nav-edge { display:flex; align-items:center; }
.nav-left { justify-self:flex-start; }
.nav-right { justify-self:flex-end; display:flex; align-items:center; gap:12px; }
.nav-right .mobile-toggle { order:1; }
.nav-right .lang-switch { order:2; }
.nav-center { display:flex; justify-content:center; }
.container { width: 100%; max-width: 1440px; margin: 0 auto; padding: 0 16px; }
.nav { display:flex; align-items:center; justify-content:center; height:60px; position:relative; width:100%; }
.nav a { color:var(--text); }
.brand { font-weight:700; font-size:18px; display:inline-flex; align-items:center; }
.desktop-nav { display:flex; align-items:center; justify-content:center; width:100%; }
#desktopNavLinks { display:inline-flex; justify-content:center; gap:28px; position:relative; padding-bottom:6px; margin:0 auto; }
#desktopNavLinks .nav-link { padding:8px 4px; color:var(--text); font-weight:500; transition:color .2s ease; display:inline-flex; align-items:center; }
#desktopNavLinks .nav-link.active { color:var(--pri); }
.nav-indicator { position:absolute; bottom:0; left:0; height:2px; background:var(--pri); border-radius:999px; width:0; opacity:0; transition:transform .25s ease,width .25s ease,opacity .2s ease; }
.lang-switch { position:relative; }
.lang-btn { display:flex; align-items:center; gap:6px; background:#fff; border:1px solid #dce3f0; border-radius:8px; padding:6px 14px; cursor:pointer; font-size:14px; color:#0f172a; }
.lang-btn:focus-visible { outline:none; box-shadow:0 0 0 3px rgba(30,128,255,0.2); }
.lang-icon svg { width:16px; height:16px; display:block; color:var(--pri); }
.lang-arrow svg { width:12px; height:12px; display:block; color:#64748b; }
.lang-menu { position:absolute; right:0; top:calc(100% + 8px); background:#fff; border:1px solid #e2e8f0; border-radius:12px; box-shadow:0 12px 28px rgba(15,23,42,.15); padding:4px 0; min-width:160px; list-style:none; margin:0; display:none; z-index:30; }
.lang-menu li { padding:8px 14px; cursor:pointer; color:#0f172a; }
.lang-menu li:hover { background:#f1f5f9; }
.lang-menu li.active { color:var(--pri); font-weight:600; }
.lang-switch.open .lang-menu { display:block; }
.mobile-menu a.active { border-bottom:2px solid var(--pri); color:var(--pri); }
.mobile-toggle { display:none; width:34px; height:34px; border:1px solid var(--line); border-radius:8px; background:#fff; align-items:center; justify-content:center; cursor:pointer; flex-direction:column; gap:4px; }
.mobile-toggle span { display:block; width:14px; height:2px; background:var(--text); transition:.2s; }
.mobile-menu { display:none; position:absolute; top:60px; right:16px; left:16px; background:#fff; border:1px solid var(--line); border-radius:12px; box-shadow:0 10px 30px rgba(15,23,42,.1); padding:12px; z-index:12; }
.mobile-menu a { display:block; padding:10px 4px; color:#0f172a; border-bottom:1px solid #f1f5f9; }
.mobile-menu a:last-child { border-bottom:0; }
.mobile-menu select { width:100%; margin-top:8px; }
.mobile-menu.open { display:block; }
.btn { display:inline-block; padding:8px 14px; background:var(--pri); color:#fff; border-radius:6px; text-decoration:none; transition:.2s ease; box-shadow: var(--shadow); border:0; outline:none; }
.btn:hover { background: var(--pri-600); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:focus-visible { box-shadow: 0 0 0 3px rgba(30,128,255,0.2); }
.btn.btn-outline { background:#fff; color:var(--pri); border:1px solid var(--pri); box-shadow:none; }
.btn.btn-outline:hover { background:rgba(30,128,255,0.06); }
input, select, textarea { padding:10px 12px; border:1px solid var(--line); border-radius:6px; outline:none; transition:.15s; }
input:focus, select:focus, textarea:focus { border-color: var(--pri); box-shadow: 0 0 0 3px rgba(30,128,255,0.12); }
label { user-select:none; }
.form input:not([type="checkbox"]):not([type="radio"]), .form select, .form textarea { display:block; width:100%; margin:6px 0; }
.form textarea { min-height: 120px; line-height:1.5; }
.form .actions { margin-top:8px; }
.form label { display:flex; align-items:center; gap:8px; margin:6px 0; }
.form label input[type="checkbox"] { width:auto; padding:0; }
.banner { position: relative; overflow: hidden; height: 420px; background: #f2f6fc; }
.banner { flex: 0 0 auto; min-height: 420px; }
.banner img { width:100%; height:100%; object-fit:cover; display:none; }
.banner img.active { display:block; }
.dots { position:absolute; bottom:16px; left:50%; transform:translateX(-50%); display:flex; gap:8px; }
.dots span { width:10px; height:10px; border-radius:50%; background:#ddd; cursor:pointer; }
.dots span.active { background: var(--pri); }
.banner .container { position:absolute; left:0; right:0; top:0; bottom:0; display:flex; align-items:center; }
.banner h1 { font-size:34px; margin:0 0 10px; }
.banner p { margin:0 0 14px; }
.banner-caption {
  color:#fff;
  mix-blend-mode:difference;
  padding:24px;
  border-radius:20px;
  max-width:520px;
}
.banner-caption h1,
.banner-caption p {
  color:inherit;
  text-shadow:none;
}
.banner-caption .btn {
  background:transparent;
  border:1px solid currentColor;
  color:inherit;
  mix-blend-mode:difference;
  box-shadow:none;
  backdrop-filter: blur(6px);
}
.banner-caption .btn:hover {
  background:rgba(255,255,255,0.08);
}
section { padding: 48px 0; }
h1 { font-size: 26px; margin: 0 0 12px; }
h2 { margin: 0 0 20px; font-size: 22px; }
/* 首页：提升章节标题与顶部距离 */
body.home h2.section-title { margin-top: 16px; }
.home-news-wrap {
  padding-top:32px !important;
  padding-bottom:32px !important;
  display:grid;
  grid-template-columns:minmax(0,2fr) minmax(0,1fr);
  gap:32px;
  align-items:flex-start;
}
.home-section-card {
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  padding:24px;
  box-shadow:0 10px 24px rgba(15,23,42,.05);
}
.home-section-card ul {
  list-style:none;
  padding:0;
  margin:0;
}
.home-section-card li {
  padding:10px 0;
  border-bottom:1px solid #f1f5f9;
}
.home-section-card li:last-child { border-bottom:0; }
.home-section-card li span { font-size:13px; }
.home-section-card a { color:#0f172a; font-weight:500; }
.home-section-card a:hover { color:var(--pri); }
.grid { display:grid; grid-template-columns: repeat(3,1fr); gap:18px; }
.card { border:1px solid var(--line); border-radius:12px; overflow:hidden; background:#fff; transition:.22s ease; box-shadow: 0 1px 2px rgba(15,23,42,.03); }
.card:hover { transform: translateY(-4px); box-shadow: 0 10px 24px rgba(15,23,42,.08); }
.card img { width:100%; height:160px; object-fit:cover; }
.card .bd { padding:14px; }
.muted { color:var(--sub); }
footer { background:var(--bg); border-top:1px solid var(--line); padding:24px 0; margin-top:auto; }
.footer-grid { display:grid; gap:16px; }
.footer-grid.footer-top { grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); align-items:flex-start; }
.friend-block { margin-top:24px; }
.footer-col h4 { margin:0 0 10px; font-size:16px; }
.footer-links a { display:block; color:#334155; margin:6px 0; }
.footer-links a:hover { color:var(--pri); }
.downloads a { display:block; color:#334155; margin:6px 0; font-weight:500; }
.downloads .desc { display:block; font-size:12px; color:#94a3b8; }
.downloads a:hover { color:var(--pri); }
.footer-col.footer-follow { display:flex; flex-direction:column; align-items:flex-start; }
.footer-col.footer-follow img { margin-top:4px; }
.friend-links {
  display:grid;
  grid-template-columns: repeat(6, minmax(0,1fr));
  column-gap:20px;
  row-gap:12px;
}
.friend-links a {
  display:block;
  color:#334155;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.friend-links a img { height:14px; width:14px; object-fit:contain; }
.friend-links a:hover { color:var(--pri); }
.footer-contact div { color:#334155; margin:6px 0; }
.footer-bottom { margin-top:12px; padding-top:12px; border-top:1px solid var(--line); display:flex; justify-content:space-between; flex-wrap:wrap; }
.friend-groups { display:flex; flex-wrap:wrap; gap:6px 16px; }
.friend-group { min-width: 140px; }
.friend-group h5 { margin:4px 0; font-size:13px; color:#334155; }
.friend-group a { display:block; color:#334155; margin:4px 0; }
.friend-group a:hover { color:var(--pri); }
.hero { padding: 28px 0; background: var(--bg); border-bottom:1px solid var(--line); }
.hero p { margin:6px 0; color:var(--sub); }
/* 公司页等段落导语 */
.lead { font-size: 18px; line-height: 1.75; }
/* 首页：缩小 hero 高度至约 1/3 */
body.home .hero { padding: 10px 0; }
.searchbar { display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin: 0 0 12px; }
.searchbar input { width: 260px; }
.list-actions { display:flex; align-items:center; gap:12px; margin-top:16px; flex-wrap:wrap; }
.list-actions .btn { min-width:140px; }
.form { border:1px solid var(--line); border-radius:12px; padding:16px; margin:12px 0; background:#fff; box-shadow: 0 1px 2px rgba(15,23,42,.03); }
.news-list .item { padding:12px 0; border-bottom:1px solid #f0f0f0; }
.news-list .item a { color:#0f172a; }
.news-list .item a:hover { color: var(--pri); }
.tag { display:inline-block; padding:3px 8px; font-size:12px; color:#0f172a; background:#f1f5f9; border:1px solid #e2e8f0; border-radius:999px; }
@media (max-width: 900px){
  .grid { grid-template-columns: repeat(2,1fr);}
  .banner{height:260px; min-height:260px}
  .banner img{height:100%}
  .footer-grid.footer-top { grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); }
}
@media (max-width: 960px){
  .home-news-wrap { grid-template-columns:1fr; }
}
@media (max-width: 600px){
  .grid { grid-template-columns: 1fr;}
  .list-actions { flex-direction:column; align-items:flex-start; }
  .friend-links {
    grid-template-columns: 1fr;
    row-gap:10px;
  }
  .friend-links a {
    width:100%;
  }
}

.downloads-page{padding:40px 0;}
.downloads-layout{display:grid;grid-template-columns:minmax(0,420px) minmax(0,1fr);gap:32px;}
.download-list-card,.download-detail-card{background:#fff;border-radius:16px;padding:24px;box-shadow:0 10px 30px rgba(15,23,42,0.08);}
.download-list{list-style:none;margin:16px 0 0;padding:0;max-height:70vh;overflow:auto;}
.download-list li{padding:12px 16px;border-radius:10px;margin-bottom:8px;cursor:pointer;background:#f8fafc;}
.download-list li:hover{background:#e2e8f0;}
.download-list li.active{background:#2563eb;color:#fff;}
.download-detail-card h2{margin-top:0;}
.detail-actions{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap;}
.detail-actions .btn{min-width:140px;justify-content:center;}
.detail-doc{margin-top:20px;font-size:15px;line-height:1.75;color:#0f172a;word-break:break-word;}
.detail-doc p{margin:0 0 12px;}
@media(max-width:960px){
  .downloads-layout{grid-template-columns:1fr;}
  .download-list{max-height:none;}
}

.video-wrap { position: relative; width:100%; border-radius:8px; overflow:hidden; box-shadow:0 12px 30px rgba(15,23,42,.12); background:#000; }
.video-wrap video { width:100%; height:auto; display:block; border-radius:8px; }
.home-video { width:100%; height:auto; display:block; background:#000; border-radius:8px; }

/* 图文排版：左右图文与特性列表 */
.media { display:flex; align-items:center; gap:20px; }
.media img { width:40%; height:auto; border-radius:12px; object-fit:cover; }
.media .content { flex:1; }
.feature-list { margin:8px 0 0; padding-left: 18px; display:grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap:6px 20px; }
@media (max-width: 900px){
  .media { flex-direction:column; }
  .media img { width:100%; }
  .feature-list { grid-template-columns: 1fr; }
}
@media (max-width: 860px){
  .desktop-nav { display:none; }
  .mobile-toggle { display:inline-flex; }
  .mobile-menu { left:0; right:0; margin:0 16px; }
  header .container.nav { padding-right:56px; }
}