/* ============ 基础变量 ============ */
:root {
  --brand: #4f46e5;
  --brand-2: #7c3aed;
  --brand-3: #06b6d4;
  --ink: #0f172a;
  --ink-2: #334155;
  --ink-3: #64748b;
  --line: #e6e9f2;
  --bg: #ffffff;
  --bg-soft: #f6f7fc;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, .06);
  --shadow: 0 12px 32px rgba(15, 23, 42, .10);
  --shadow-lg: 0 24px 60px rgba(79, 70, 229, .18);
  --max: 1200px;
  --nav-h: 68px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink-2);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { color: var(--ink); margin: 0; line-height: 1.3; font-weight: 700; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.grad-text {
  background: linear-gradient(120deg, var(--brand) 0%, var(--brand-2) 50%, var(--brand-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease;
}
.btn-primary {
  background: linear-gradient(120deg, var(--brand), var(--brand-2));
  color: #fff;
  box-shadow: 0 8px 22px rgba(79, 70, 229, .28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(79, 70, 229, .34); }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-block { width: 100%; }

/* ============ 导航 ============ */
.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(255, 255, 255, .78);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .25s ease, border-color .25s ease, background .25s ease;
}
.navbar.scrolled {
  background: rgba(255, 255, 255, .96);
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.nav-inner { height: var(--nav-h); display: flex; align-items: center; justify-content: space-between; }

.logo { display: flex; align-items: center; gap: 12px; font-weight: 700; color: var(--ink); }
.logo-img { height: 40px; width: auto; display: block; }
.logo-sub {
  font-size: 15px; font-weight: 600; color: var(--ink-2);
  border-left: 1px solid var(--line); padding-left: 12px;
}
.footer-brand .logo-img { height: 46px; }

.nav-menu { display: flex; align-items: center; gap: 28px; }
.nav-menu a { font-size: 15px; color: var(--ink-2); font-weight: 500; transition: color .2s ease; }
.nav-menu a:not(.btn):hover { color: var(--brand); }
.nav-menu a.btn, .nav-menu a.btn:hover { color: #fff; }

.nav-toggle { display: none; width: 40px; height: 40px; border: 0; background: none; cursor: pointer; flex-direction: column; justify-content: center; gap: 5px; }
.nav-toggle span { display: block; height: 2px; background: var(--ink); border-radius: 2px; transition: .25s ease; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 72px) 0 96px;
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 12% -10%, #eef0ff 0%, transparent 60%),
    radial-gradient(900px 500px at 90% 0%, #e8f7ff 0%, transparent 55%),
    #fff;
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .45; }
.orb-1 { width: 420px; height: 420px; background: #8b8cf7; top: -120px; left: -80px; }
.orb-2 { width: 360px; height: 360px; background: #4fd1e6; top: 40px; right: -60px; }
.orb-3 { width: 300px; height: 300px; background: #c4b5fd; bottom: -140px; left: 45%; }
.grid-mask {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(15,23,42,.045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(15,23,42,.045) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 78%);
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand);
  background: rgba(79, 70, 229, .09);
  border: 1px solid rgba(79, 70, 229, .18);
  margin-bottom: 20px;
}
.hero h1 { font-size: 52px; letter-spacing: -1px; margin-bottom: 20px; }
.hero-desc { font-size: 17px; color: var(--ink-2); max-width: 560px; }
.hero-actions { display: flex; gap: 14px; margin: 30px 0 22px; flex-wrap: wrap; }
.hero-points { display: flex; gap: 22px; flex-wrap: wrap; font-size: 14px; color: var(--ink-3); }
.hero-points li { position: relative; padding-left: 18px; }
.hero-points li::before {
  content: ""; position: absolute; left: 0; top: 10px;
  width: 8px; height: 8px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-3));
}

/* Hero 面板 */
.hero-visual { position: relative; }
.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: perspective(1200px) rotateY(-6deg) rotateX(3deg);
  transition: transform .5s ease;
}
.panel:hover { transform: perspective(1200px) rotateY(0) rotateX(0); }
.panel-head {
  display: flex; align-items: center; gap: 7px;
  padding: 12px 16px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
}
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot.red { background: #ff5f57; } .dot.yellow { background: #febc2e; } .dot.green { background: #28c840; }
.panel-title { margin-left: 10px; font-size: 13px; color: var(--ink-3); font-weight: 600; }
.panel-body { padding: 20px; }

.kpi-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.kpi {
  background: linear-gradient(160deg, #f7f8ff, #fff);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px; text-align: center;
}
.kpi-num { display: block; font-size: 20px; font-weight: 800; color: var(--ink); }
.kpi-label { font-size: 12px; color: var(--ink-3); }

.chart { display: flex; align-items: flex-end; gap: 10px; height: 150px; margin: 18px 0; }
.chart .bar {
  flex: 1; height: var(--h);
  border-radius: 8px 8px 4px 4px;
  background: linear-gradient(180deg, var(--brand), #a5b4fc);
  position: relative;
  animation: grow .9s ease both;
}
.chart .bar:nth-child(2) { background: linear-gradient(180deg, var(--brand-2), #c4b5fd); }
.chart .bar:nth-child(4) { background: linear-gradient(180deg, var(--brand-3), #a5f3fc); }
.chart .bar span { position: absolute; bottom: -24px; left: 0; right: 0; text-align: center; font-size: 11px; color: var(--ink-3); }
.chart { padding-bottom: 24px; }
@keyframes grow { from { transform: scaleY(0); transform-origin: bottom; } to { transform: scaleY(1); transform-origin: bottom; } }

.panel-list { display: flex; flex-direction: column; gap: 8px; }
.panel-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 13px; color: var(--ink-2);
}
.panel-item b { margin-left: auto; color: var(--ink); }
.ic { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.ic-order { background: var(--brand); } .ic-user { background: var(--brand-3); } .ic-warn { background: #f59e0b; }

/* 数据条 */
.stats {
  position: relative;
  margin-top: 64px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  padding: 26px 24px;
  background: rgba(255, 255, 255, .8);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-sm);
}
.stat { text-align: center; }
.stat b { display: block; font-size: 32px; color: var(--ink); font-weight: 800; background: linear-gradient(120deg, var(--brand), var(--brand-3)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { font-size: 14px; color: var(--ink-3); }

/* ============ 通用区块 ============ */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-soft); }

.section-head { max-width: 760px; margin: 0 auto 52px; text-align: center; }
.eyebrow {
  display: inline-block;
  font-size: 13px; font-weight: 700; letter-spacing: 2px;
  color: var(--brand);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-head h2 { font-size: 36px; margin-bottom: 16px; }
.section-head p { color: var(--ink-3); font-size: 16px; }
.section-head p b { color: var(--ink); }

/* ============ 对比 ============ */
.compare { display: grid; grid-template-columns: 1fr auto 1fr; gap: 26px; align-items: stretch; }
.compare-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  box-shadow: var(--shadow-sm);
}
.compare-card h3 { font-size: 20px; margin-bottom: 16px; }
.compare-card ul { display: flex; flex-direction: column; gap: 12px; }
.compare-card li { position: relative; padding-left: 26px; font-size: 15px; }
.compare-card li::before { position: absolute; left: 0; top: 0; font-weight: 700; }
.compare-card.bad li::before { content: "✕"; color: #ef4444; }
.compare-card.good li::before { content: "✓"; color: #10b981; }
.compare-card.bad { border-color: #fecaca; background: linear-gradient(180deg, #fff7f7, #fff); }
.compare-card.good { border-color: #bfdbfe; background: linear-gradient(180deg, #f2f8ff, #fff); }
.compare-arrow { display: grid; place-items: center; font-size: 28px; color: var(--brand); font-weight: 700; }

/* ============ 能力卡片 ============ */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(79, 70, 229, .32); }
.card-ic {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  font-size: 24px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(79,70,229,.12), rgba(6,182,212,.12));
  margin-bottom: 18px;
}
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--ink-3); }
.card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.card-tags li {
  font-size: 12px; padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--ink-3);
  border: 1px solid var(--line);
}

/* ============ 行业 Tab ============ */
.tab-nav {
  display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: center;
  margin-bottom: 32px;
}
.tab-btn {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 14.5px; font-weight: 600; color: var(--ink-2);
  cursor: pointer;
  transition: all .22s ease;
}
.tab-btn:hover { border-color: var(--brand); color: var(--brand); }
.tab-btn.active {
  background: linear-gradient(120deg, var(--brand), var(--brand-2));
  color: #fff; border-color: transparent;
  box-shadow: 0 8px 20px rgba(79, 70, 229, .25);
}

.tab-panels { position: relative; }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp .45s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

.panel-grid {
  display: grid; grid-template-columns: 1.4fr .8fr; gap: 32px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 34px;
  box-shadow: var(--shadow-sm);
}
.panel-grid h3 { font-size: 24px; margin-bottom: 12px; }
.panel-lead { color: var(--ink-3); font-size: 15.5px; margin-bottom: 20px; }
.check-list { display: flex; flex-direction: column; gap: 12px; }
.check-list li { position: relative; padding-left: 28px; font-size: 15px; }
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  width: 20px; height: 20px; margin-top: 4px;
  display: grid; place-items: center;
  font-size: 12px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-3));
  border-radius: 50%;
}

.mini-stats { display: flex; flex-direction: column; gap: 14px; }
.ms {
  background: linear-gradient(160deg, #f7f8ff, #fff);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}
.ms b { display: block; font-size: 24px; color: var(--ink); }
.ms span { font-size: 13px; color: var(--ink-3); }

/* ============ 功能矩阵 ============ */
.matrix { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.matrix-col {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: transform .3s ease, box-shadow .3s ease;
}
.matrix-col:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.matrix-col h3 { display: flex; align-items: center; gap: 10px; font-size: 18px; padding-bottom: 14px; border-bottom: 1px dashed var(--line); margin-bottom: 16px; }
.mi { font-size: 20px; }
.matrix-col ul { display: flex; flex-direction: column; gap: 11px; }
.matrix-col li { position: relative; padding-left: 16px; font-size: 14.5px; color: var(--ink-3); }
.matrix-col li::before { content: ""; position: absolute; left: 0; top: 11px; width: 6px; height: 6px; border-radius: 50%; background: var(--brand-3); }

/* ============ 架构 ============ */
.arch { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.arch-layer {
  width: 100%;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 22px;
  display: grid; grid-template-columns: 120px 1fr; gap: 20px; align-items: center;
  box-shadow: var(--shadow-sm);
}
.arch-layer.accent {
  background: linear-gradient(120deg, rgba(79,70,229,.08), rgba(6,182,212,.08));
  border-color: rgba(79, 70, 229, .28);
}
.arch-tag { font-weight: 700; font-size: 15px; color: var(--ink); text-align: center; }
.arch-boxes { display: flex; flex-wrap: wrap; gap: 10px; }
.arch-boxes span {
  font-size: 13.5px; padding: 7px 14px;
  border-radius: 8px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--ink-2);
}
.arch-layer.accent .arch-boxes span { background: #fff; border-color: rgba(79, 70, 229, .22); color: var(--brand); font-weight: 600; }
.arch-arrow { color: var(--brand); font-size: 16px; opacity: .7; }

.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 40px; }
.tech {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; text-align: center; box-shadow: var(--shadow-sm);
}
.tech b { display: block; font-size: 18px; color: var(--ink); margin-bottom: 6px; }
.tech span { font-size: 14px; color: var(--ink-3); }

/* ============ 交付 ============ */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.plan {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
}
.plan:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.plan h3 { font-size: 21px; margin-bottom: 8px; }
.plan-desc { color: var(--ink-3); font-size: 14.5px; margin-bottom: 18px; }
.plan .check-list { margin-bottom: 18px; }
.plan-tip { font-size: 13px; color: var(--brand); font-weight: 600; }
.plan-hot { border-color: rgba(79, 70, 229, .4); box-shadow: var(--shadow-lg); }
.plan-badge {
  position: absolute; top: -12px; right: 20px;
  padding: 4px 14px; border-radius: 999px;
  font-size: 12px; font-weight: 700; color: #fff;
  background: linear-gradient(120deg, var(--brand), var(--brand-2));
}

/* 时间线 */
.timeline {
  margin-top: 56px;
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px;
  position: relative;
}
.tl-step {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 20px 18px;
}
.tl-num { display: inline-block; font-size: 13px; font-weight: 800; color: var(--brand); margin-bottom: 6px; }
.tl-step b { display: block; font-size: 16px; margin-bottom: 6px; color: var(--ink); }
.tl-step p { font-size: 13.5px; color: var(--ink-3); }

/* ============ 服务支持 ============ */
.support { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.sup {
  background: linear-gradient(160deg, #f7f8ff, #fff);
  border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 22px;
}
.sup b { display: block; font-size: 17px; color: var(--ink); margin-bottom: 8px; }
.sup span { font-size: 14px; color: var(--ink-3); }

/* ============ CTA ============ */
.cta { padding: 96px 0; background: linear-gradient(135deg, #151a3a 0%, #2a2170 55%, #0e7490 100%); color: #fff; }
.cta-inner { display: grid; grid-template-columns: 1fr .85fr; gap: 56px; align-items: center; }
.cta-copy h2 { color: #fff; font-size: 34px; margin-bottom: 16px; }
.cta-copy p { color: rgba(255, 255, 255, .78); font-size: 16px; }
.cta-list { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; color: rgba(255, 255, 255, .92); font-size: 15px; }

.cta-form {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px 28px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .28);
}
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 11px 14px;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fff;
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, .14);
}
.field textarea { resize: vertical; }
.form-tip { margin-top: 12px; font-size: 12.5px; color: var(--ink-3); text-align: center; }
.form-tip.ok { color: #10b981; font-weight: 600; }

/* ============ Footer ============ */
.footer { background: #0f1430; color: rgba(255, 255, 255, .7); padding: 56px 0 24px; }
.footer-inner { display: grid; grid-template-columns: 1.2fr 2fr; gap: 40px; padding-bottom: 32px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.footer-brand { display: flex; gap: 14px; align-items: flex-start; }
.footer-brand b { color: #fff; font-size: 17px; }
.footer-brand p { font-size: 13.5px; margin-top: 6px; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-links h4 { color: #fff; font-size: 15px; margin-bottom: 12px; }
.footer-links a { display: block; font-size: 13.5px; padding: 4px 0; transition: color .2s ease; }
.footer-links a:hover { color: #fff; }
.copyright { padding-top: 20px; font-size: 13px; text-align: center; color: rgba(255, 255, 255, .5); }

/* ============ 滚动动画 ============ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 42px; }
  .cards, .matrix { grid-template-columns: repeat(2, 1fr); }
  .panel-grid { grid-template-columns: 1fr; }
  .tech-grid, .support { grid-template-columns: repeat(2, 1fr); }
  .timeline { grid-template-columns: repeat(3, 1fr); }
  .plans { grid-template-columns: 1fr; }
  .cta-inner { grid-template-columns: 1fr; gap: 36px; }
  .footer-inner { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .logo-img { height: 32px; }
  .logo-sub { font-size: 12.5px; padding-left: 10px; }
  .nav-menu {
    position: fixed; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 4px;
    padding: 14px 24px 22px;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateY(-12px);
    opacity: 0; pointer-events: none;
    transition: .25s ease;
  }
  .nav-menu.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-menu a { width: 100%; padding: 10px 0; }
  .nav-menu .btn { margin-top: 8px; width: 100%; }

  .section { padding: 64px 0; }
  .section-head h2 { font-size: 27px; }
  .hero { padding: calc(var(--nav-h) + 40px) 0 64px; }
  .hero h1 { font-size: 32px; }
  .hero-desc { font-size: 15.5px; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 20px 12px; }
  .stat b { font-size: 26px; }
  .compare { grid-template-columns: 1fr; }
  .compare-arrow { transform: rotate(90deg); padding: 4px 0; }
  .cards, .matrix { grid-template-columns: 1fr; }
  .tech-grid, .support, .timeline { grid-template-columns: 1fr; }
  .arch-layer { grid-template-columns: 1fr; gap: 12px; }
  .arch-tag { text-align: left; }
  .cta-copy h2 { font-size: 26px; }
  .footer-links { grid-template-columns: 1fr; }
  .panel { transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}