/* =========================================================
   元宇宙ID · 公司官网样式
   ========================================================= */
:root {
  --brand-1: #6366f1;
  --brand-2: #8b5cf6;
  --brand-3: #d946ef;
  --ink: #0f172a;
  --ink-soft: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #ffffff;
  --bg-soft: #f6f7fb;
  --bg-dark: #0b1023;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05), 0 4px 14px rgba(15, 23, 42, .05);
  --shadow-md: 0 6px 24px rgba(79, 70, 229, .10), 0 2px 8px rgba(15, 23, 42, .06);
  --shadow-lg: 0 20px 60px rgba(15, 23, 42, .14);
  --grad: linear-gradient(120deg, var(--brand-1), var(--brand-2) 55%, var(--brand-3));
  --grad-soft: linear-gradient(120deg, rgba(99,102,241,.10), rgba(217,70,239,.08));
  --header-h: 72px;
  --max-w: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ---------- 通用区块标题 ---------- */
.section { padding: 96px 0; }
.section--soft { background: var(--bg-soft); }
.section--dark {
  background: var(--bg-dark);
  color: #e2e8f0;
  position: relative;
  overflow: hidden;
}
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.sec-eyebrow {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--grad-soft);
  color: var(--brand-1);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .06em;
  margin-bottom: 14px;
  border: 1px solid rgba(99,102,241,.18);
}
.sec-title { font-size: clamp(26px, 4vw, 38px); line-height: 1.25; font-weight: 800; letter-spacing: -.01em; }
.sec-desc { color: var(--muted); font-size: 16px; margin-top: 14px; }
.section--dark .sec-desc { color: #94a3b8; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- 顶栏导航 ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center;
  transition: background .25s, box-shadow .25s, height .25s;
}
.header.scrolled {
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line);
  height: 62px;
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 20px; width: 100%; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; letter-spacing: -.02em; }
.brand .mark {
  width: 38px; height: 38px; border-radius: 11px;
  background: var(--grad);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 18px;
  box-shadow: 0 6px 16px rgba(99,102,241,.35);
  flex: none;
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 8px 14px; border-radius: 10px;
  color: var(--ink-soft); font-size: 15px; font-weight: 500;
  transition: color .2s, background .2s;
}
.nav-links a:hover { color: var(--brand-1); background: rgba(99,102,241,.08); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-auth {
  padding: 8px 12px; border-radius: 10px;
  font-size: 15px; font-weight: 600; color: var(--ink-soft);
  transition: color .2s, background .2s;
}
.nav-auth:hover { color: var(--brand-1); background: rgba(99,102,241,.08); }
.nav-auth-reg {
  color: var(--brand-1);
  border: 1px solid rgba(99,102,241,.35);
}
.nav-auth-reg:hover { background: rgba(99,102,241,.1); border-color: var(--brand-1); }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 22px; border-radius: 12px;
  font-size: 15px; font-weight: 600;
  border: 1px solid transparent;
  transition: transform .18s, box-shadow .18s, background .18s, color .18s, border-color .18s;
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 20px rgba(99,102,241,.32); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(99,102,241,.42); }
.btn-ghost { border-color: var(--line); color: var(--ink-soft); background: #fff; }
.btn-ghost:hover { border-color: var(--brand-1); color: var(--brand-1); }
.btn-white { background: #fff; color: var(--brand-1); box-shadow: 0 8px 20px rgba(0,0,0,.25); }
.btn-white:hover { transform: translateY(-2px); }
.btn-line { border-color: rgba(255,255,255,.35); color: #fff; }
.btn-line:hover { background: rgba(255,255,255,.1); border-color: #fff; }
.nav-burger {
  display: none;
  width: 42px; height: 42px; border-radius: 10px;
  border: 1px solid var(--line); background: #fff;
  align-items: center; justify-content: center;
}

/* ---------- 首屏 Hero ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(217,70,239,.25), transparent 60%),
    radial-gradient(700px 420px at -5% 20%, rgba(99,102,241,.35), transparent 60%),
    var(--bg-dark);
  color: #e2e8f0;
  overflow: hidden;
  padding: calc(var(--header-h) + 64px) 0 96px;
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 75%);
}
.hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  font-size: 13px; font-weight: 500; color: #c7d2fe;
}
.hero-eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: #34d399; box-shadow: 0 0 0 4px rgba(52,211,153,.2); }
.hero h1 { font-size: clamp(32px, 5vw, 54px); line-height: 1.16; font-weight: 800; margin: 20px 0 18px; letter-spacing: -.02em; }
.hero h1 .grad-text { background: linear-gradient(120deg,#a5b4fc,#e879f9); -webkit-background-clip: text; background-clip: text; }
.hero p.lead { color: #94a3b8; font-size: 17px; max-width: 540px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: 30px; }
.hero-points li { display: flex; align-items: center; gap: 8px; color: #cbd5e1; font-size: 14px; }
.hero-points svg { color: #818cf8; flex: none; }

/* Hero 右侧图形 */
.hero-visual { position: relative; display: flex; justify-content: center; }
.phone-frame {
  width: 300px; border-radius: 34px;
  background: linear-gradient(160deg, #1e2749, #131a33);
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: 0 30px 80px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.12);
  padding: 14px;
  transform: rotate(4deg);
  position: relative; z-index: 2;
}
.phone-screen {
  border-radius: 24px; overflow: hidden;
  background: #fff; color: var(--ink);
}
.phone-top { background: var(--grad); padding: 18px 16px; color: #fff; }
.phone-top .who { font-size: 13px; opacity: .8; }
.phone-top .nm { font-size: 17px; font-weight: 700; margin-top: 2px; }
.phone-body { padding: 14px; display: grid; gap: 10px; }
.phone-mod { border-radius: 12px; border: 1px solid var(--line); padding: 10px 12px; display: flex; align-items: center; gap: 10px; }
.phone-mod .ph-ic { width: 34px; height: 34px; border-radius: 9px; background: var(--grad-soft); display: inline-flex; align-items: center; justify-content: center; color: var(--brand-1); flex: none; }
.phone-mod .ph-t { font-size: 13px; font-weight: 600; }
.phone-mod .ph-s { font-size: 11px; color: var(--muted); }
.float-card {
  position: absolute; background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px); color: var(--ink);
  border-radius: 16px; padding: 12px 16px;
  box-shadow: var(--shadow-lg);
  display: flex; align-items: center; gap: 12px;
  font-size: 13px; font-weight: 600;
  animation: float 5s ease-in-out infinite;
  z-index: 3;
}
.float-card small { display: block; color: var(--muted); font-weight: 400; }
.float-card svg { color: #10b981; }
.float-card.fc-1 { left: -24px; top: 16%; animation-delay: 0s; }
.float-card.fc-2 { right: -30px; bottom: 14%; animation-delay: 1.6s; }
.float-card.fc-3 { left: -40px; bottom: 4%; animation-delay: 3s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.hero-glow {
  position: absolute; width: 320px; height: 320px; border-radius: 50%;
  filter: blur(70px); opacity: .5; z-index: 0; pointer-events: none;
}
.hero-glow.g1 { background: #6366f1; top: 8%; right: 4%; }
.hero-glow.g2 { background: #d946ef; bottom: 0; left: 30%; opacity: .3; }

/* ---------- 数据统计条 ---------- */
.stats { border-bottom: 1px solid var(--line); background: var(--bg); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding: 28px 0; }
.stat { text-align: center; padding: 8px; }
.stat b { font-size: clamp(28px, 4vw, 40px); font-weight: 800; display: block; line-height: 1.2; }
.stat span { color: var(--muted); font-size: 14px; }

/* ---------- 通用卡片网格 ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }

.card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px;
  transition: transform .22s, box-shadow .22s, border-color .22s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }

/* ---------- 产品服务 ---------- */
.service-card .sc-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--grad-soft); color: var(--brand-1);
  margin-bottom: 18px;
}
.service-card:nth-child(3n+2) .sc-icon { background: linear-gradient(120deg,#ede9fe,#fae8ff); color: var(--brand-2); }
.service-card:nth-child(3n) .sc-icon { background: linear-gradient(120deg,#ecfeff,#f5f3ff); color: #0891b2; }
.service-card h3 { font-size: 18px; margin-bottom: 8px; }
.service-card p { color: var(--muted); font-size: 14.5px; margin-bottom: 14px; }
.service-card .more { font-size: 14px; font-weight: 600; color: var(--brand-1); display: inline-flex; align-items: center; gap: 6px; }
.service-card .more svg { transition: transform .2s; }
.service-card:hover .more svg { transform: translateX(4px); }

/* ---------- 关于我们 ---------- */
.about-visual {
  border-radius: var(--radius-lg); overflow: hidden;
  min-height: 420px;
  background:
    radial-gradient(300px 300px at 20% 10%, rgba(217,70,239,.5), transparent 70%),
    radial-gradient(400px 300px at 85% 90%, rgba(99,102,241,.55), transparent 70%),
    linear-gradient(150deg, #1e2749, #0f172a);
  position: relative; color: #fff;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 34px;
}
.about-visual .qr-card {
  background: #fff; color: var(--ink); border-radius: 16px;
  padding: 16px; width: 190px; text-align: center;
  box-shadow: var(--shadow-lg);
}
.about-visual .qr-card .qr { font-size: 11px; color: var(--muted); margin-top: 6px; }
.about-visual .tagline { font-size: 30px; font-weight: 800; line-height: 1.3; }
.about-visual .tagline em { font-style: normal; background: linear-gradient(120deg,#a5b4fc,#f0abfc); -webkit-background-clip: text; background-clip: text; color: transparent; }
.about-list { display: grid; gap: 16px; margin-top: 24px; }
.about-item { display: flex; gap: 14px; align-items: flex-start; }
.about-item .ai-ic { width: 42px; height: 42px; flex: none; border-radius: 12px; background: var(--grad-soft); color: var(--brand-1); display: inline-flex; align-items: center; justify-content: center; }
.about-item h4 { font-size: 16px; margin-bottom: 4px; }
.about-item p { color: var(--muted); font-size: 14px; }
.about-quote {
  margin-top: 28px; padding: 18px 20px; border-left: 4px solid var(--brand-1);
  background: var(--grad-soft); border-radius: 0 14px 14px 0;
  font-size: 15px; color: var(--ink-soft);
}

/* ---------- 解决方案 / 场景 ---------- */
.scene-card { position: relative; overflow: hidden; }
.scene-card .snum {
  font-size: 13px; font-weight: 700; color: var(--brand-1);
  letter-spacing: .12em;
}
.scene-card h3 { font-size: 20px; margin: 10px 0 10px; }
.scene-card p { color: var(--muted); font-size: 14.5px; margin-bottom: 16px; }
.scene-card .tags { display: flex; flex-wrap: wrap; gap: 8px; }
.scene-card .tags span {
  font-size: 12px; padding: 4px 10px; border-radius: 999px;
  background: var(--bg-soft); border: 1px solid var(--line); color: var(--ink-soft);
}
.case-strip {
  margin-top: 44px; text-align: center;
}
.case-strip .c-label { font-size: 13px; color: var(--muted); margin-bottom: 18px; letter-spacing: .08em; }
.case-strip .logos { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.case-strip .logos span {
  padding: 10px 20px; border: 1px solid var(--line); border-radius: 12px;
  background: #fff; font-size: 14px; font-weight: 600; color: var(--ink-soft);
  display: inline-flex; align-items: center; gap: 8px;
  box-shadow: var(--shadow-sm);
}
.case-strip .logos svg { color: var(--brand-2); }

/* ---------- 团队 ---------- */
.team-card { text-align: center; padding: 32px 24px; }
.avatar {
  width: 84px; height: 84px; border-radius: 50%;
  margin: 0 auto 16px;
  background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 28px; font-weight: 700;
  box-shadow: 0 10px 24px rgba(99,102,241,.3);
}
.avatar.a2 { background: linear-gradient(135deg,#0ea5e9,#6366f1); }
.avatar.a3 { background: linear-gradient(135deg,#10b981,#0ea5e9); }
.avatar.a4 { background: linear-gradient(135deg,#f59e0b,#ef4444); }
.team-card h4 { font-size: 17px; }
.team-card .role { color: var(--brand-1); font-size: 13px; font-weight: 600; margin: 2px 0 10px; }
.team-card p { color: var(--muted); font-size: 14px; }
.team-card .social { display: flex; justify-content: center; gap: 10px; margin-top: 14px; }
.team-card .social a {
  width: 34px; height: 34px; border-radius: 10px;
  border: 1px solid var(--line); display: inline-flex; align-items: center; justify-content: center;
  color: var(--muted); transition: all .2s;
}
.team-card .social a:hover { color: #fff; background: var(--brand-1); border-color: var(--brand-1); }

/* ---------- 行动号召 CTA ---------- */
.cta-band {
  background: var(--grad);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  color: #fff;
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px; flex-wrap: wrap;
  position: relative; overflow: hidden;
  box-shadow: 0 24px 60px rgba(99,102,241,.35);
}
.cta-band::after {
  content: ""; position: absolute; right: -60px; top: -60px;
  width: 240px; height: 240px; border-radius: 50%;
  background: rgba(255,255,255,.14); filter: blur(10px);
}
.cta-band h2 { font-size: clamp(22px, 3.4vw, 32px); font-weight: 800; line-height: 1.3; }
.cta-band p { opacity: .9; margin-top: 8px; }
.cta-band .btn { position: relative; z-index: 1; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: start; }
.contact-info { display: grid; gap: 14px; }
.info-row {
  display: flex; gap: 16px; align-items: center;
  background: #fff; border: 1px solid var(--line);
  border-radius: 14px; padding: 18px 20px;
  transition: box-shadow .2s, transform .2s;
}
.info-row:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
.info-row .ir-ic { width: 44px; height: 44px; flex: none; border-radius: 12px; background: var(--grad-soft); color: var(--brand-1); display: inline-flex; align-items: center; justify-content: center; }
.info-row h4 { font-size: 14px; color: var(--muted); font-weight: 500; }
.info-row p { font-size: 15px; font-weight: 600; }

.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-sm); }
.form-card h3 { font-size: 20px; margin-bottom: 6px; }
.form-card .form-tip { color: var(--muted); font-size: 13.5px; margin-bottom: 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 6px; color: var(--ink-soft); }
.field input, .field textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 11px;
  padding: 11px 14px; font-size: 15px; font-family: inherit;
  transition: border-color .2s, box-shadow .2s;
  background: #fbfcfe; color: var(--ink);
}
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--brand-1);
  box-shadow: 0 0 0 3px rgba(99,102,241,.14);
  background: #fff;
}
.field textarea { resize: vertical; min-height: 110px; }
.form-ok {
  display: none; margin-top: 14px; padding: 12px 16px;
  background: #ecfdf5; color: #059669; border: 1px solid #a7f3d0;
  border-radius: 11px; font-size: 14px;
}
.form-err {
  display: none; margin-top: 14px; padding: 12px 16px;
  background: #fef2f2; color: #dc2626; border: 1px solid #fecaca;
  border-radius: 11px; font-size: 14px;
}

/* ---------- 页脚 ---------- */
.footer { background: #0b1023; color: #94a3b8; padding: 60px 0 0; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 44px; }
.footer h5 { color: #e2e8f0; font-size: 15px; margin-bottom: 16px; font-weight: 700; }
.footer ul li { margin-bottom: 10px; font-size: 14px; }
.footer ul a:hover { color: #fff; }
.footer .f-brand { display: flex; align-items: center; gap: 10px; color: #f8fafc; font-weight: 800; font-size: 18px; margin-bottom: 14px; }
.footer .f-brand .mark { width: 34px; height: 34px; border-radius: 10px; background: var(--grad); display: inline-flex; align-items: center; justify-content: center; color: #fff; flex: none; }
.footer .f-desc { font-size: 14px; max-width: 300px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0; display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap; font-size: 13px;
}
.footer-bottom a:hover { color: #fff; }
.footer .sys-links { display: flex; flex-wrap: wrap; gap: 8px; }
.footer .sys-links a {
  font-size: 12px; padding: 5px 12px; border: 1px solid rgba(255,255,255,.16);
  border-radius: 999px; color: #cbd5e1; transition: all .2s;
}
.footer .sys-links a:hover { background: rgba(255,255,255,.1); color: #fff; }

/* ---------- 电话 / 邮箱链接 ---------- */
.tel-link { color: inherit; text-decoration: none; transition: color .2s; }
.tel-link:hover { color: var(--brand-1); }

/* ---------- 回顶按钮 ---------- */
.to-top {
  position: fixed; right: 22px; bottom: 22px; z-index: 90;
  width: 46px; height: 46px; border-radius: 13px;
  border: none; background: var(--grad); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0; pointer-events: none; transform: translateY(10px);
  transition: opacity .25s, transform .25s;
}
.to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* ---------- 滚动入场动画 ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }

/* ---------- 移动端抽屉菜单 ---------- */
.mobile-menu {
  position: fixed; inset: 0; z-index: 120;
  background: rgba(11,16,35,.4); backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none; transition: opacity .25s;
}
.mobile-menu.open { opacity: 1; pointer-events: auto; }
.mobile-menu .panel {
  position: absolute; top: 0; right: 0; bottom: 0; width: min(320px, 84vw);
  background: #fff; padding: 28px 24px;
  transform: translateX(100%); transition: transform .28s ease;
  display: flex; flex-direction: column;
  overflow-y: auto;
}
.mobile-menu.open .panel { transform: none; }
.mobile-menu .mm-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.mobile-menu a.mm-link {
  padding: 13px 6px; font-size: 16px; font-weight: 600; color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
}
.mobile-menu a.mm-link:hover { color: var(--brand-1); }
.mobile-menu .mm-auth { display: flex; gap: 12px; margin-top: 24px; }
.mobile-menu .mm-auth-btn { flex: 1; justify-content: center; }
.mobile-menu .mm-cta { margin-top: 12px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .hero .container { grid-template-columns: 1fr; gap: 60px; }
  .hero-visual { order: -1; }          /* 移动端图形放上方会占高，改为放下方 */
  .hero-visual { order: 2; margin-top: 8px; }
  .float-card.fc-1 { left: 2%; }
  .float-card.fc-2 { right: 2%; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 920px) {
  .nav-links, .nav-cta .btn-ghost, .nav-cta .btn-primary { display: none; }
  .nav-cta .nav-auth { padding: 6px 8px; font-size: 14px; }
  .nav-burger { display: inline-flex; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .section { padding: 64px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 40px 24px; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .float-card { transform: scale(.9); }
  .float-card.fc-1 { left: -6px; }
  .float-card.fc-3 { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .float-card { animation: none; }
}