/* FunASR 官网前端 — 科技蓝主题（深蓝 #0369a1 / 亮蓝 #89b4fa） */
:root {
  --blue-deep: #0369a1;
  --blue: #0ea5e9;
  --blue-light: #89b4fa;
  --blue-50: #eff6ff;
  --ink: #0f172a;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(3, 105, 161, 0.10);
  --shadow-lg: 0 20px 50px rgba(3, 105, 161, 0.18);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 20px; }

/* ===== 顶部导航 ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: .5px; }
.logo .dot {
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(135deg, var(--blue-deep), var(--blue-light));
  display: grid; place-items: center; color: #fff; font-size: 16px; font-weight: 900;
}
.nav-right { display: flex; align-items: center; gap: 14px; }
.nav-links { display: flex; gap: 22px; color: var(--muted); font-size: 15px; }
.nav-links a:hover { color: var(--blue-deep); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 20px; border-radius: 999px; font-weight: 700; font-size: 15px;
  cursor: pointer; border: 1px solid transparent; transition: .18s ease;
}
.btn-primary { background: linear-gradient(135deg, var(--blue-deep), var(--blue)); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--blue-deep); }
.btn-ghost:hover { border-color: var(--blue); background: var(--blue-50); }
.btn-lg { padding: 15px 30px; font-size: 17px; }

/* ===== Hero ===== */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(137,180,250,.35), transparent),
    radial-gradient(900px 500px at -10% 10%, rgba(14,165,233,.18), transparent),
    linear-gradient(180deg, #f8fbff, #ffffff);
  padding: 78px 0 64px;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; }
.badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px;
  background: var(--blue-50); color: var(--blue-deep); font-size: 13px; font-weight: 700; margin-bottom: 18px;
}
.badge .pulse { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 0 0 rgba(34,197,94,.6); animation: pulse 1.8s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 8px rgba(34,197,94,0); } 100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); } }
.hero h1 { font-size: 46px; line-height: 1.2; margin: 0 0 18px; letter-spacing: -.5px; }
.hero h1 .hl { background: linear-gradient(135deg, var(--blue-deep), var(--blue)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.sub { font-size: 18px; color: var(--muted); margin: 0 0 30px; max-width: 540px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 28px; margin-top: 38px; }
.hero-stats .s-num { font-size: 26px; font-weight: 800; color: var(--blue-deep); }
.hero-stats .s-lbl { font-size: 13px; color: var(--muted); }
/* hero 右侧装饰卡 */
.hero-card {
  background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 22px;
  box-shadow: var(--shadow-lg);
}
.hero-card .row { display: flex; gap: 12px; align-items: center; padding: 10px 0; border-bottom: 1px dashed var(--line); }
.hero-card .row:last-child { border-bottom: 0; }
.hero-card .ic { width: 38px; height: 38px; border-radius: 10px; background: var(--blue-50); display: grid; place-items: center; font-size: 18px; }
.hero-card .t { font-weight: 700; }
.hero-card .d { font-size: 13px; color: var(--muted); }

/* ===== 区块标题 ===== */
.section { padding: 70px 0; }
.section.alt { background: linear-gradient(180deg, #f8fbff, #ffffff); }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 44px; }
.sec-head h2 { font-size: 34px; margin: 0 0 12px; letter-spacing: -.5px; }
.sec-head p { color: var(--muted); font-size: 17px; margin: 0; }

/* ===== 功能卡片 ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px;
  transition: .2s ease; position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--blue-light); }
.card .ic { width: 50px; height: 50px; border-radius: 14px; background: linear-gradient(135deg, var(--blue-deep), var(--blue-light)); display: grid; place-items: center; font-size: 24px; margin-bottom: 16px; }
.card h3 { margin: 0 0 8px; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* ===== 优势条 ===== */
.features-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.feat { text-align: center; padding: 24px 16px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.feat .big { font-size: 30px; margin-bottom: 8px; }
.feat .t { font-weight: 700; }
.feat .d { font-size: 13px; color: var(--muted); }

/* ===== CTA 下载 ===== */
.cta {
  background: linear-gradient(135deg, var(--blue-deep), var(--blue));
  border-radius: 24px; padding: 54px 40px; text-align: center; color: #fff;
  box-shadow: var(--shadow-lg);
}
.cta h2 { font-size: 32px; margin: 0 0 12px; }
.cta p { font-size: 17px; opacity: .92; margin: 0 0 26px; }
.cta .btn-white { background: #fff; color: var(--blue-deep); }
.cta .btn-white:hover { transform: translateY(-2px); }

/* ===== 页脚 ===== */
.footer { background: #0b1f33; color: #cbd5e1; padding: 40px 0; font-size: 14px; }
.footer a { color: #93c5fd; }
.footer .cols { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.footer .copy { margin-top: 24px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.1); color: #94a3b8; }

/* ===== 下载页 ===== */
.dl-hero { padding: 64px 0 30px; text-align: center; }
.dl-hero h1 { font-size: 40px; margin: 0 0 12px; }
.dl-hero p { color: var(--muted); font-size: 17px; margin: 0; }
.dl-card {
  max-width: 760px; margin: 30px auto 0; background: #fff; border: 1px solid var(--line);
  border-radius: 20px; padding: 36px; box-shadow: var(--shadow); text-align: center;
}
.dl-card .name { font-size: 26px; font-weight: 800; margin: 0 0 10px; }
.dl-card .desc { color: var(--muted); margin: 0 0 26px; min-height: 24px; }
.dl-card .note { color: var(--muted); font-size: 15px; }
.dl-meta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 18px; color: var(--muted); font-size: 13px; }
.spinner { width: 34px; height: 34px; border: 4px solid var(--line); border-top-color: var(--blue); border-radius: 50%; animation: spin 1s linear infinite; margin: 20px auto; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== 通用占位页 ===== */
.placeholder { max-width: 560px; margin: 90px auto; text-align: center; padding: 40px; }
.placeholder .em { font-size: 54px; }
.placeholder h1 { font-size: 28px; margin: 14px 0 8px; }
.placeholder p { color: var(--muted); }

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 36px; }
  .cards, .features-row { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .cards, .features-row { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; gap: 18px; }
  .hero h1 { font-size: 30px; }
  .sec-head h2, .cta h2, .dl-hero h1 { font-size: 26px; }
}