:root {
  --bg: #05070f;
  --ink: #eef2ff;
  --muted: #94a3c4;
  --line: rgba(255, 255, 255, .1);
  --grad: linear-gradient(115deg, #8fb4ff, #7c8cff 35%, #a78bfa 65%, #67e8f9);
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 16px/1.75 "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.wrap { width: min(1080px, 100% - 40px); margin: 0 auto; }

header.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(6, 9, 20, .72);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.nav .wrap { height: 68px; display: flex; align-items: center; gap: 24px; }
.brand { display: flex; align-items: center; gap: 9px; text-decoration: none; font-weight: 700; font-size: 17px; }
.brand img { width: 30px; height: 30px; }
.nav nav { margin-left: auto; display: flex; gap: clamp(14px, 2.4vw, 26px); font-size: 14px; }
.nav nav a { color: var(--muted); text-decoration: none; white-space: nowrap; }
.nav nav a:hover, .nav nav a.on { color: #fff; }
.nav .go {
  height: 38px; padding: 0 16px; border-radius: 10px; display: inline-flex; align-items: center;
  background: linear-gradient(135deg, #6d8cff, #7c5cff); color: #fff; text-decoration: none;
  font-size: 14px; font-weight: 600; white-space: nowrap;
}

main { padding: clamp(36px, 6vw, 64px) 0 clamp(56px, 8vw, 88px); }
h1 { font-size: clamp(30px, 4.6vw, 48px); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 16px; font-weight: 800; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { color: var(--muted); font-size: 17px; max-width: 40em; margin: 0 0 8px; }
h2 { font-size: clamp(20px, 2.4vw, 24px); margin: 44px 0 14px; letter-spacing: -.01em; }
h2:first-of-type { margin-top: 30px; }
p { margin: 0 0 12px; color: #c9d3e6; }
ul, ol { margin: 0 0 16px; padding-left: 20px; color: #c9d3e6; }
li { margin: 7px 0; }
b, strong { color: #fff; }

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .02));
  border: 1px solid var(--line); border-radius: 16px; padding: 20px 24px; margin: 16px 0;
}
.grid { display: grid; gap: 14px; }
@media (min-width: 760px) {
  .grid.two { grid-template-columns: 1fr 1fr; }
  .grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.kv { display: grid; grid-template-columns: 96px 1fr; gap: 10px 16px; font-size: 15px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; color: #dbe4ff; }

.table-wrap { width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 10px 0 6px; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; margin: 0; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid rgba(255, 255, 255, .08); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 13px; }
tr:last-child td { border-bottom: 0; }
td.n { color: #fff; font-weight: 600; white-space: nowrap; }

.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 46px; padding: 0 22px; border-radius: 12px; text-decoration: none;
  font-weight: 600; font-size: 15px; color: #fff;
  background: linear-gradient(135deg, #6d8cff, #7c5cff);
  box-shadow: 0 12px 34px rgba(77, 124, 255, .4);
}
.btn.ghost { background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .16); box-shadow: none; color: #dfe7ff; }

.qr { width: 180px; border-radius: 12px; background: #fff; padding: 8px; }


@media (max-width: 760px) {
  .nav .wrap { height: auto; padding: 10px 0 8px; flex-wrap: wrap; gap: 8px 10px; }
  .brand { flex: none; white-space: nowrap; font-size: 16px; gap: 7px; }
  .brand img { width: 26px; height: 26px; }
  .nav nav {
    order: 3; width: 100%; margin-left: 0; gap: 16px; overflow-x: auto;
    padding: 2px 0 4px; font-size: 13.5px; scrollbar-width: none; -webkit-overflow-scrolling: touch;
  }
  .nav nav::-webkit-scrollbar { display: none; }
  .nav nav a { flex: none; }
  .nav .go { margin-left: auto; height: 34px; padding: 0 11px; font-size: 13px; }
  main { padding-top: 32px; }
  h1 { font-size: 30px; }
  .lede { font-size: 15.5px; }
  .kv { grid-template-columns: 78px minmax(0, 1fr); gap: 8px 12px; font-size: 14px; }
  .card { padding: 18px 16px; }
  table { min-width: 0; font-size: 14px; }
  th, td { padding: 10px 10px; }
  .stack thead { display: none; }
  .stack, .stack tbody, .stack tr, .stack td { display: block; width: 100%; }
  .stack tr { padding: 12px 0; border-bottom: 1px solid rgba(255, 255, 255, .08); }
  .stack tr:first-child { border-top: 1px solid rgba(255, 255, 255, .08); }
  .stack td { border: 0; padding: 3px 0; white-space: normal; }
  .stack td.n { margin-bottom: 3px; font-size: 15px; }
  .stack-service td:nth-child(2)::before { content: "具体做什么："; color: var(--muted); }
  .stack-service td:nth-child(3)::before { content: "适合谁："; color: var(--muted); }
  .stack-contact td:nth-child(2)::before { content: "怎么处理："; color: var(--muted); }
}
/* 页脚：与首页保持一致（品牌大字 + 导航 + 公示小字 + 备案） */
footer {
  padding: clamp(56px, 7vw, 100px) 0 34px;
  border-top: 1px solid rgba(255, 255, 255, .07);
  background: radial-gradient(ellipse 70% 120% at 50% 130%, rgba(77, 124, 255, .22), transparent 62%);
  font-size: 13px; color: var(--muted);
}
footer .wrap { display: block; }
footer .foot-name {
  margin: 0; font-size: clamp(58px, 12vw, 170px); line-height: .9; letter-spacing: -.05em; font-weight: 800;
  background: linear-gradient(180deg, #fff 8%, rgba(168, 190, 255, .55) 78%, rgba(139, 92, 246, .35) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
footer .foot-tag { margin: clamp(16px, 2vw, 24px) 0 0; font-size: clamp(14px, 1.5vw, 18px); letter-spacing: .2em; color: rgba(196, 210, 255, .78); }
footer nav { display: flex; flex-wrap: wrap; gap: clamp(16px, 3vw, 34px); margin-top: clamp(26px, 3.6vw, 44px); }
footer nav a { font-size: 15px; color: var(--muted); text-decoration: none; transition: color .22s; }
footer nav a:hover { color: #fff; }
footer .foot-legal { margin: clamp(22px, 3vw, 34px) 0 0; max-width: 88ch; font-size: 13px; line-height: 1.9; color: #8290ab; }
footer .foot-legal a { color: var(--muted); text-decoration: none; }
footer .foot-legal a:hover { color: #fff; }
footer .beian { display: flex; flex-wrap: wrap; gap: 18px; margin-top: clamp(26px, 3.6vw, 42px); font-size: 12.5px; color: #66738f; }
footer .beian a { display: inline-flex; align-items: center; gap: 6px; color: inherit; text-decoration: none; }
footer .beian a:hover { color: var(--muted); }
footer .beian img { width: 16px; height: 16px; }
footer a { color: var(--muted); text-decoration: none; }