:root{
  --apx-bg:#f7f8fb;
  --apx-surface:#ffffff;
  --apx-surface-2:#f2f5ff;
  --apx-text:#0b1220;
  --apx-muted:#5a667f;
  --apx-line:rgba(10, 18, 32, .10);
  --apx-primary:#2b6cff;
  --apx-primary-2:#7c4dff;
  --apx-primary-3:#18a0fb;
  --apx-radius:18px;
  --apx-shadow:0 12px 40px rgba(15, 23, 42, .10);
  --apx-shadow-soft:0 6px 22px rgba(15, 23, 42, .08);
  /* 顶栏主导航：在正文默认约 16px 上再大 2px */
  --apx-nav-font-size:18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  color:var(--apx-text);
  background:
    radial-gradient(900px 520px at 15% 0%, rgba(43,108,255,.18), transparent 55%),
    radial-gradient(760px 460px at 85% 5%, rgba(124,77,255,.14), transparent 58%),
    radial-gradient(760px 520px at 70% 90%, rgba(24,160,251,.10), transparent 55%),
    var(--apx-bg);
}
a{color:inherit;text-decoration:none}

.apx-container{max-width:1440px;margin:0 auto;padding:0 28px}
.apx-main{padding-bottom:48px}

/* Header */
.apx-header{
  position:sticky;top:0;z-index:20;
  backdrop-filter:saturate(160%) blur(14px);
  background:rgba(255,255,255,.72);
  border-bottom:1px solid var(--apx-line);
}
.apx-header-inner{
  display:flex;align-items:center;gap:18px;
  min-height:68px;
}
.apx-brand{display:flex;align-items:center;gap:12px;min-width:240px}
.apx-brand-logo{display:inline-flex;align-items:center;justify-content:center}
.apx-brand-logo-img{width:34px;height:34px;display:block}
.apx-brand-text{display:flex;flex-direction:column;gap:2px;line-height:1.1}
.apx-brand-mark{font-weight:800;letter-spacing:.4px}
.apx-brand-sub{font-size:12px;color:var(--apx-muted)}
.apx-nav{display:flex;gap:14px;align-items:center;flex:1}
.apx-nav-item{position:relative;display:flex;align-items:center}
.apx-nav-link--caret::after{
  content:"▼";
  font-size:10px;
  margin-left:6px;
  opacity:.65;
}
.apx-nav-item.is-active > .apx-nav-link{background:rgba(43,108,255,.12);color:var(--apx-text)}
.apx-nav-dropdown{
  position:absolute;
  top:100%;
  left:0;
  /* 不要用 margin-top 制造“视觉间距”，否则鼠标经过缝隙会丢 hover，菜单立刻收起 */
  margin-top:0;
  min-width:320px;
  padding:10px;
  /* 顶部额外留白：既形成视觉间距，又保持 hover 命中区连续（避免 padding 被后面的 padding 覆盖） */
  padding-top:20px;
  border-radius:16px;
  border:1px solid var(--apx-line);
  background:rgba(255,255,255,.96);
  box-shadow:var(--apx-shadow);
  display:none;
}
.apx-nav-item--dropdown:hover .apx-nav-dropdown,
.apx-nav-item--dropdown:focus-within .apx-nav-dropdown{display:block}

/* 额外保险：在触发链接与面板之间铺一层透明命中区（覆盖 padding-top 的空白） */
.apx-nav-item--dropdown::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  top:100%;
  height:12px;
}
.apx-nav-dd-link{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:10px 10px;
  border-radius:14px;
  border:1px solid transparent;
}
.apx-nav-dd-link:hover{
  background:rgba(43,108,255,.08);
  border-color:rgba(43,108,255,.14);
}
.apx-nav-dd-ico{
  width:38px;height:38px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 38px;
  box-shadow:0 10px 22px rgba(15,23,42,.10);
  border:1px solid rgba(255,255,255,.55);
}
.apx-nav-dd-ico svg{width:20px;height:20px;color:#fff}
.apx-nav-dd-text{min-width:0}
.apx-nav-dd-title{display:block;font-weight:900;font-size:var(--apx-nav-font-size)}
.apx-nav-dd-sub{display:block;margin-top:4px;color:var(--apx-muted);font-size:12px;line-height:1.35}
.apx-nav-link{
  padding:10px 10px;border-radius:12px;color:var(--apx-muted);
  font-size:var(--apx-nav-font-size);
  transition:background .15s ease,color .15s ease;
}
.apx-nav-link:hover{background:rgba(43,108,255,.08);color:var(--apx-text)}
.apx-nav-link.is-active{background:rgba(43,108,255,.12);color:var(--apx-text)}
.apx-header-cta{display:flex;gap:10px;align-items:center}
.apx-nav-toggle{
  display:none;
  width:44px;height:40px;border-radius:12px;
  background:rgba(15,23,42,.04);
  border:1px solid var(--apx-line);
  color:var(--apx-text);
}
.apx-nav-toggle span{display:block;height:2px;background:currentColor;margin:6px 10px;border-radius:2px;opacity:.9}
.apx-nav-drawer{border-top:1px solid var(--apx-line);background:rgba(255,255,255,.95)}
.apx-nav-drawer-inner{padding:14px 20px 20px;display:grid;gap:10px}
.apx-nav-drawer-group{
  display:grid;
  gap:8px;
  padding:10px;
  border-radius:16px;
  border:1px solid var(--apx-line);
  background:rgba(255,255,255,.7);
}
.apx-nav-drawer-group-title{font-weight:900;font-size:var(--apx-nav-font-size)}
.apx-nav-drawer-link{
  padding:12px 12px;border-radius:14px;background:rgba(15,23,42,.03);border:1px solid var(--apx-line);
  font-size:var(--apx-nav-font-size);
}
.apx-nav-drawer-link--sub{
  padding:10px 12px;
  font-size:15px;
  color:var(--apx-muted);
  border-style:dashed;
  background:rgba(43,108,255,.04);
}
.apx-nav-drawer-cta{justify-content:center}

/* Buttons */
.apx-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 14px;border-radius:14px;
  border:1px solid var(--apx-line);
  background:rgba(15,23,42,.03);
  color:var(--apx-text);
  transition:transform .15s ease,background .15s ease,border-color .15s ease;
  font-weight:700;
}
.apx-btn:hover{transform:translateY(-1px);background:rgba(15,23,42,.05)}
.apx-btn-primary{
  border-color:rgba(43,108,255,.35);
  color:#fff;
  box-shadow:0 10px 26px rgba(43,108,255,.22);
  background:linear-gradient(135deg, rgba(43,108,255,.95), rgba(124,77,255,.92));
}
.apx-btn-primary:hover{
  border-color:rgba(43,108,255,.65);
  background:linear-gradient(135deg, rgba(29,92,245,.98), rgba(109,61,255,.95));
}
.apx-btn-primary:active{
  transform:translateY(0);
  background:linear-gradient(135deg, rgba(24,80,222,.98), rgba(92,48,230,.95));
}
.apx-btn-primary:focus-visible{
  outline:3px solid rgba(43,108,255,.25);
  outline-offset:2px;
}
.apx-btn-ghost{background:transparent}

/* Hero */
.apx-hero{padding:56px 0 26px}
.apx-hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:stretch}
.apx-badge{
  display:inline-flex;align-items:center;
  font-size:12px;color:var(--apx-muted);
  padding:6px 10px;border-radius:999px;border:1px solid var(--apx-line);
  background:rgba(255,255,255,.8);
}
.apx-hero-title{margin:14px 0 10px;font-size:46px;line-height:1.08;letter-spacing:-.6px}
.apx-hero-sub{margin:0;color:var(--apx-muted);font-size:16px;line-height:1.7;max-width:52ch}
.apx-hero-actions{margin-top:18px;display:flex;gap:12px;flex-wrap:wrap}
.apx-hero-metrics{margin-top:22px;display:flex;gap:16px;flex-wrap:wrap}
.apx-metric{
  padding:12px 14px;border-radius:16px;border:1px solid var(--apx-line);
  background:rgba(255,255,255,.86);
  min-width:140px;
}
.apx-metric-num{font-weight:900;font-size:18px}
.apx-metric-label{margin-top:4px;color:var(--apx-muted);font-size:12px}
.apx-hero-card{
  height:100%;
  border:1px solid var(--apx-line);
  border-radius:var(--apx-radius);
  background:linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.78));
  box-shadow:var(--apx-shadow-soft);
  padding:18px 18px 16px;
}
.apx-hero-card-title{font-weight:900;letter-spacing:.2px}
.apx-flow{display:grid;grid-template-columns:1fr .9fr 1fr;gap:10px;margin-top:14px;align-items:center}
.apx-flow-col{display:grid;gap:10px}
.apx-flow-mid{display:grid;gap:8px}
.apx-flow-node{
  padding:12px 12px;border-radius:14px;border:1px solid var(--apx-line);
  background:rgba(255,255,255,.9);
  font-weight:700;color:var(--apx-text);
}
.apx-flow-chip{
  padding:10px 12px;border-radius:999px;border:1px dashed rgba(255,255,255,.16);
  border-color:rgba(10, 18, 32, .18);
  background:rgba(15,23,42,.02);
  color:var(--apx-muted);
  font-size:12px;text-align:center
}
.apx-hero-card-foot{margin-top:14px;display:flex;gap:10px;align-items:center;color:var(--apx-muted);font-size:12px}
.apx-hero-card-foot-dot{width:8px;height:8px;border-radius:99px;background:var(--apx-primary)}

/* Sections */
.apx-section{padding:34px 0}
.apx-section-sub{margin:8px 0 0;color:var(--apx-muted)}
.apx-grid{display:grid;gap:16px;margin-top:18px}
.apx-grid-3{grid-template-columns:repeat(3,1fr)}
.apx-grid-2{grid-template-columns:repeat(2,1fr)}
.apx-feature,.apx-card,.apx-case{
  border:1px solid var(--apx-line);
  border-radius:var(--apx-radius);
  background:rgba(255,255,255,.86);
  box-shadow:var(--apx-shadow-soft);
  padding:16px 16px 14px;
}
.apx-feature-ico{
  width:42px;height:42px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg, rgba(43,108,255,.14), rgba(124,77,255,.10));
  border:1px solid rgba(43,108,255,.22);
  font-weight:900;
}
.apx-feature-title{margin-top:12px;font-weight:900}
.apx-feature-title-row .apx-feature-title{margin-top:0}
.apx-feature-desc{margin-top:6px;color:var(--apx-muted);line-height:1.6}
.apx-feature-figure{
  margin-top:12px;
  border-radius:14px;
  border:1px solid var(--apx-line);
  background:rgba(255,255,255,.78);
  overflow:hidden;
  line-height:0;
}
.apx-feature-figure svg{display:block;width:100%;height:auto;max-height:104px}
.apx-card-figure{
  margin:12px 0 10px;
  border-radius:14px;
  border:1px solid var(--apx-line);
  background:rgba(247,248,251,.92);
  overflow:hidden;
  line-height:0;
}
.apx-card-figure svg{display:block;width:100%;height:auto;max-height:112px}

.apx-section-dark{
  background:linear-gradient(180deg, rgba(43,108,255,.06), rgba(124,77,255,.04));
  border-top:1px solid var(--apx-line);
  border-bottom:1px solid var(--apx-line);
}
.apx-cta{display:flex;align-items:center;justify-content:space-between;gap:16px}
.apx-cta-title{margin:0;font-size:24px}
.apx-cta-sub{margin:8px 0 0;color:var(--apx-muted)}

/* Page hero */
.apx-page-title{margin:0;font-size:34px}
.apx-page-sub{margin:10px 0 0;color:var(--apx-muted);max-width:64ch;line-height:1.7}

/* Card details */
.apx-card-title{
  margin:8px 0 0;
  font-size:20px;
  display:flex;
  align-items:center;
  gap:10px;
}
.apx-card-desc{margin:8px 0 0;color:var(--apx-muted);line-height:1.7}
.apx-list{margin:10px 0 0;padding-left:18px;color:var(--apx-muted);line-height:1.8}

/* Cases */
.apx-case-title{margin-top:10px;font-weight:900}
.apx-case-desc{margin-top:8px;color:var(--apx-muted);line-height:1.6}
.apx-case-metric{margin-top:14px;display:flex;gap:14px;flex-wrap:wrap}
.apx-case-num{font-weight:900}
.apx-case-k{margin-left:6px;color:var(--apx-muted);font-size:12px}

/* Contact */
.apx-contact-kv{margin-top:12px;display:grid;gap:10px}
.apx-contact-kv .apx-mini-top{align-items:center}
.apx-contact-kv .apx-mini-top > div{display:grid;gap:4px}
.apx-k{display:inline-block;min-width:64px;color:var(--apx-muted)}
.apx-v{color:var(--apx-text)}
.apx-form{display:grid;gap:12px}
.apx-form-row{display:grid;gap:6px}
.apx-label{color:var(--apx-muted);font-size:12px}
.apx-input,.apx-textarea{
  width:100%;
  padding:10px 12px;
  border-radius:14px;
  border:1px solid var(--apx-line);
  background:rgba(255,255,255,.92);
  color:var(--apx-text);
  outline:none;
}
.apx-input:focus,.apx-textarea:focus{border-color:rgba(79,124,255,.6)}
.apx-form-actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.apx-form-hint{color:var(--apx-muted);font-size:12px}
.apx-form-result{
  margin:6px 0 0;
  padding:12px;
  border-radius:14px;
  border:1px solid var(--apx-line);
  background:rgba(15,23,42,.03);
  color:#0b1220;
  overflow:auto;
  max-height:260px;
}

/* Footer */
.apx-footer{border-top:1px solid var(--apx-line);padding:26px 0 20px;background:rgba(255,255,255,.78)}
.apx-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:14px}
.apx-footer-title{font-weight:900}
.apx-footer-desc{margin-top:8px;color:var(--apx-muted);line-height:1.7}
.apx-footer-col-title{font-weight:800;margin-bottom:8px}
.apx-footer-col a{display:block;padding:6px 0;color:var(--apx-muted)}
.apx-footer-col a:hover{color:var(--apx-text)}
.apx-footer-bottom{margin-top:18px;color:var(--apx-muted);display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.apx-footer-dot{opacity:.6}
.apx-footer-link{color:var(--apx-muted)}
.apx-footer-link:hover{color:var(--apx-text)}

@media (max-width: 980px){
  .apx-hero-inner{grid-template-columns:1fr}
  .apx-grid-3{grid-template-columns:1fr}
  .apx-grid-2{grid-template-columns:1fr}
  .apx-nav{display:none}
  .apx-nav-toggle{display:inline-block;margin-left:auto}
  .apx-header-cta{display:none}
  .apx-footer-grid{grid-template-columns:1fr 1fr}
}

@media (max-width: 520px){
  .apx-hero-title{font-size:36px}
  .apx-footer-grid{grid-template-columns:1fr}
}

/* 超宽屏下更“宽频”的排版 */
@media (min-width: 1440px){
  .apx-hero-inner{gap:40px}
  .apx-hero-title{font-size:52px}
  .apx-grid{gap:18px}
}

@media (max-width: 520px){
  .apx-container{padding:0 18px}
}

/* 图标与图文模块 */
.apx-ico{
  width:20px;height:20px;flex:0 0 20px;
  color:rgba(43,108,255,.95);
}
.apx-feature-ico svg,
.apx-card-ico svg{width:100%;height:100%}
.apx-feature-ico{gap:0}
.apx-feature-ico.apx-feature-ico--svg{padding:10px}
.apx-feature-title-row{display:flex;gap:10px;align-items:center}
.apx-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 10px;border-radius:999px;
  background:rgba(43,108,255,.06);
  border:1px solid rgba(43,108,255,.14);
  color:var(--apx-muted);
  font-size:12px;
}
.apx-media{
  border:1px solid var(--apx-line);
  border-radius:var(--apx-radius);
  background:linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.72));
  box-shadow:var(--apx-shadow);
  overflow:hidden;
}
.apx-media-inner{padding:18px}
.apx-media-title{font-weight:900}
.apx-media-sub{margin-top:6px;color:var(--apx-muted);line-height:1.7}
.apx-media-figure{
  margin-top:14px;
  border-radius:14px;
  background:linear-gradient(135deg, rgba(43,108,255,.10), rgba(124,77,255,.08));
  border:1px dashed rgba(10, 18, 32, .16);
  padding:14px;
}
.apx-mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.apx-mini-card{
  background:rgba(255,255,255,.82);
  border:1px solid var(--apx-line);
  border-radius:14px;
  padding:10px 10px 9px;
}
.apx-mini-k{font-size:12px;color:var(--apx-muted)}
.apx-mini-v{margin-top:4px;font-weight:900}

@media (max-width: 980px){
  .apx-mini-grid{grid-template-columns:1fr}
}

/* 彩色体系：渐变底 + 轻霓虹描边 */
.apx-tone-a{background:linear-gradient(135deg,#2b6cff,#18a0fb)}
.apx-tone-b{background:linear-gradient(135deg,#7c4dff,#2b6cff)}
.apx-tone-c{background:linear-gradient(135deg,#18a0fb,#2b6cff)}
.apx-tone-d{background:linear-gradient(135deg,#ff6b6b,#ffb020)}
.apx-tone-e{background:linear-gradient(135deg,#22c55e,#18a0fb)}
.apx-tone-f{background:linear-gradient(135deg,#a855f7,#ec4899)}

.apx-ico-tile{
  width:44px;height:44px;border-radius:16px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.55);
  box-shadow:0 14px 30px rgba(15,23,42,.12);
}
.apx-ico-tile svg{width:22px;height:22px;color:#fff}

.apx-card-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(10,18,32,.10);
  background:rgba(43,108,255,.06);
  color:#0b1220;
  font-weight:800;
}
.apx-card-kicker .apx-ico{color:#2b6cff}

.apx-section-title{
  position:relative;
  padding-left:14px;
  margin:0;
  font-size:26px;
  letter-spacing:-.2px;
}
.apx-section-title::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;width:4px;border-radius:999px;
  background:linear-gradient(180deg,#2b6cff,#7c4dff);
}

.apx-page-hero{
  position:relative;
  overflow:hidden;
  padding:42px 0 10px;
}
.apx-page-hero::before{
  content:"";
  position:absolute;
  inset:-40px -40px auto -40px;
  height:220px;
  background:
    radial-gradient(520px 180px at 20% 40%, rgba(43,108,255,.22), transparent 60%),
    radial-gradient(520px 180px at 70% 30%, rgba(124,77,255,.18), transparent 62%),
    radial-gradient(520px 180px at 55% 90%, rgba(24,160,251,.14), transparent 60%);
  pointer-events:none;
}
.apx-page-hero .apx-container{position:relative;z-index:1}

.apx-case-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--apx-line);
  background:rgba(255,255,255,.78);
  color:var(--apx-muted);
  font-size:12px;
}

.apx-mini-ico{
  width:34px;height:34px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.55);
  box-shadow:0 10px 22px rgba(15,23,42,.10);
}
.apx-mini-ico svg{width:18px;height:18px;color:#fff}
.apx-mini-top{display:flex;align-items:center;gap:10px}