/* ShowAgent 官网样式 —— 高端商务版 */
:root {
  --bg: #0a0e1a;
  --bg-alt: #0d1220;
  --card: #111728;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(201, 169, 97, 0.35);
  --text: #e9ecf4;
  --muted: #98a1b8;
  --gold: #c9a961;
  --gold-soft: rgba(201, 169, 97, 0.12);
  --radius: 10px;
  --serif: "Georgia", "Songti SC", "SimSun", serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
strong { color: var(--text); font-weight: 600; }
::selection { background: rgba(201, 169, 97, 0.3); }

/* 导航 */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 14, 26, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; gap: 28px; height: 68px; }
.logo { font-weight: 600; font-size: 17px; display: flex; align-items: center; gap: 10px; letter-spacing: 0.5px; }
.logo-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 6px;
  border: 1px solid var(--border-strong); color: var(--gold);
  font-family: var(--serif); font-size: 12px; font-weight: 700;
}
.nav-links { display: flex; gap: 26px; flex: 1; }
.nav-links a { color: var(--muted); font-size: 14px; transition: color 0.2s; }
.nav-links a:hover { color: var(--gold); }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: 6px; font-size: 15px; font-weight: 500;
  border: 1px solid transparent; cursor: pointer; transition: all 0.25s;
  letter-spacing: 0.5px;
}
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 14px 34px; font-size: 15px; }
.btn-primary {
  background: var(--gold); color: #0a0e1a; font-weight: 600;
}
.btn-primary:hover { background: #d8ba74; }
.btn-ghost { border-color: rgba(255, 255, 255, 0.15); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-light { background: #fff; color: #0a0e1a; font-weight: 600; }
.btn-light:hover { background: #eceff5; }
.btn-block { width: 100%; }
.btn-disabled { background: rgba(255, 255, 255, 0.05); color: var(--muted); cursor: not-allowed; border: 1px solid var(--border); }

/* Hero */
.hero {
  padding: 110px 0 90px;
  background:
    radial-gradient(800px 400px at 15% -10%, rgba(201, 169, 97, 0.08), transparent),
    radial-gradient(700px 400px at 85% 10%, rgba(201, 169, 97, 0.05), transparent);
  border-bottom: 1px solid var(--border);
}
.hero-inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 14px; border-radius: 3px;
  border: 1px solid var(--border-strong); background: var(--gold-soft);
  color: var(--gold); font-size: 12px; letter-spacing: 2px; margin-bottom: 26px;
}
.tag-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }
.hero h1 {
  font-size: 48px; line-height: 1.3; font-weight: 700; letter-spacing: 1px;
  font-family: var(--serif);
}
.em { color: var(--gold); font-style: italic; }
.hero-sub { margin-top: 22px; color: var(--muted); font-size: 16px; max-width: 520px; }
.hero-cta { margin-top: 36px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; color: var(--muted); font-size: 12px; letter-spacing: 0.5px; }

/* Hero 模拟窗口 */
.mock-window {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
}
.mock-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 11px 14px; background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}
.mock-bar i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255, 255, 255, 0.14); }
.mock-bar span { margin-left: 8px; font-size: 12px; color: var(--muted); }
.mock-body { padding: 20px; }
.mock-chat { margin-bottom: 16px; }
.bubble { padding: 10px 14px; border-radius: 8px; font-size: 13px; margin-bottom: 10px; max-width: 90%; }
.bubble.user { background: var(--gold-soft); border: 1px solid var(--border-strong); color: var(--gold); margin-left: auto; width: fit-content; }
.bubble.ai { background: rgba(255, 255, 255, 0.04); color: var(--text); border: 1px solid var(--border); }
.mock-steps p {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 13px; color: var(--muted); margin-bottom: 8px;
}
.mock-steps .tick { font-size: 12px; width: 16px; text-align: center; }
.mock-steps em { font-style: normal; font-size: 12px; margin-left: auto; }
.mock-steps em.ok { color: var(--gold); }
.mock-steps .active { border-color: var(--border-strong); color: var(--text); }
.mock-steps .active em { color: var(--gold); }
.mock-steps .spin { display: inline-block; width: 10px; height: 10px; border: 1.5px solid var(--gold); border-top-color: transparent; border-radius: 50%; animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.mock-lead {
  margin-top: 14px; display: flex; align-items: center; gap: 12px;
  padding: 13px 14px; border-radius: 8px;
  background: var(--gold-soft); border: 1px solid var(--border-strong);
}
.mock-lead strong { display: block; font-size: 13px; color: var(--gold); }
.mock-lead small { color: var(--muted); font-size: 11px; }
.lead-mark { width: 8px; height: 8px; background: var(--gold); transform: rotate(45deg); flex-shrink: 0; }

/* 数据背书条 */
.stats-band {
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.stats-inner {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; padding: 34px 24px;
}
.stat { text-align: center; }
.stat strong {
  display: block; font-size: 36px; font-weight: 400;
  font-family: var(--serif); color: var(--gold); letter-spacing: 1px;
}
.stat .unit { font-style: normal; font-size: 20px; }
.stat span { font-size: 13px; color: var(--muted); }

/* 区块 */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.sec-title { text-align: center; font-size: 30px; font-weight: 600; letter-spacing: 1px; font-family: var(--serif); }
.sec-sub { text-align: center; color: var(--muted); margin: 14px 0 52px; font-size: 15px; }

/* 卡片 */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  transition: border-color 0.25s, transform 0.25s;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.card h3 { font-size: 16px; margin: 14px 0 8px; font-weight: 600; }
.card p { color: var(--muted); font-size: 14px; }
.card-ico { display: inline-flex; width: 40px; height: 40px; align-items: center; justify-content: center; border: 1px solid var(--border-strong); border-radius: 8px; }
.card-ico svg { width: 20px; height: 20px; fill: none; stroke: var(--gold); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.card-tag {
  display: inline-block; margin-bottom: 12px; padding: 3px 12px;
  border-radius: 3px; font-size: 11px; font-weight: 600; letter-spacing: 2px;
  border: 1px solid var(--border-strong); color: var(--gold);
}

/* 痛点 */
.pain-cost {
  display: inline-block; margin-top: 14px; font-style: normal;
  padding: 3px 10px; border-radius: 3px; font-size: 12px; font-weight: 500;
  background: rgba(255, 255, 255, 0.04); color: var(--muted); border: 1px solid var(--border);
}

/* 五层能力 */
.layer-card { text-align: center; }
.layer-no {
  display: inline-flex; align-items: center; justify-content: center;
  width: 38px; height: 38px;
  border: 1px solid var(--border-strong); color: var(--gold);
  font-family: var(--serif); font-weight: 700; font-size: 16px;
}
.layer-card h3 { margin-top: 12px; }

/* 双栏特性 */
.feature-split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 18px; }
.check-list { list-style: none; }
.check-list li {
  padding: 9px 0 9px 24px; position: relative;
  color: var(--muted); font-size: 14px; border-bottom: 1px solid var(--border);
}
.check-list li:last-child { border-bottom: none; }
.check-list li::before { content: ""; position: absolute; left: 2px; top: 16px; width: 6px; height: 6px; background: var(--gold); transform: rotate(45deg); }

/* 客户价值 */
.value-card { text-align: center; padding: 36px 28px; }
.value-pct {
  display: block; font-style: normal; font-size: 46px; font-weight: 400;
  font-family: var(--serif); color: var(--gold); letter-spacing: 1px;
}
.value-card h3 { font-size: 17px; margin: 10px 0 10px; }

/* 证言 */
.quote-band {
  margin-top: 44px; padding: 40px 48px; border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--border); border-left: 2px solid var(--gold);
  text-align: left;
}
.quote-text { font-size: 17px; line-height: 1.9; color: var(--text); font-family: var(--serif); }
.quote-by { display: block; margin-top: 14px; font-size: 13px; color: var(--muted); }

/* 信任要素 */
.trust-row {
  margin-top: 24px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
}
.trust-item {
  padding: 20px; text-align: center; border-radius: var(--radius);
  background: var(--card); border: 1px solid var(--border);
  font-size: 14px; font-weight: 600;
}
.trust-item span { display: block; margin-top: 5px; font-size: 12px; font-weight: 400; color: var(--muted); }

/* CTA 横幅 */
.cta-band {
  margin-top: 24px; padding: 36px 40px; border-radius: var(--radius);
  background: var(--bg-alt); border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.cta-band p { font-size: 16px; font-weight: 500; color: var(--text); }

/* 产品矩阵 */
.suite-card { display: flex; flex-direction: column; }
.suite-head { display: flex; align-items: center; justify-content: space-between; }
.badge { padding: 3px 12px; border-radius: 3px; font-size: 12px; font-weight: 500; letter-spacing: 1px; }
.badge.live { background: var(--gold-soft); color: var(--gold); border: 1px solid var(--border-strong); }
.badge.soon { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.mini-list { list-style: none; margin: 14px 0 22px; flex: 1; }
.mini-list li { padding: 4px 0; color: var(--muted); font-size: 13px; }
.mini-list li::before { content: "— "; color: var(--gold); }

/* 三步 */
.steps { text-align: left; }
.step-no {
  font-size: 40px; font-weight: 400; line-height: 1;
  font-family: var(--serif); color: var(--gold); opacity: 0.85;
}
.step h3 { margin: 14px 0 8px; font-size: 17px; }
.step p { color: var(--muted); font-size: 14px; }

/* FAQ */
.faq-wrap { max-width: 780px; }
.faq details {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 12px; padding: 18px 22px;
}
.faq details[open] { border-color: var(--border-strong); }
.faq summary {
  cursor: pointer; font-weight: 500; font-size: 15px;
  list-style: none; position: relative; padding-right: 24px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 0; top: 50%;
  transform: translateY(-50%); color: var(--gold); font-weight: 400; font-size: 18px;
}
.faq details[open] summary::after { content: "−"; }
.faq details p { margin-top: 10px; color: var(--muted); font-size: 14px; }

/* 页脚 */
.footer { border-top: 1px solid var(--border); padding: 44px 0; background: var(--bg-alt); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer-sub { color: var(--muted); font-size: 13px; margin-top: 6px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--muted); font-size: 13px; }
.footer-links a:hover { color: var(--gold); }
.copy { color: var(--muted); font-size: 12px; }

/* 响应式 */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .feature-split, .trust-row { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
  .hero h1 { font-size: 34px; }
  .cta-band { flex-direction: column; text-align: center; }
  .quote-band { padding: 28px; }
}