:root {
  --bg: #f6faf6;
  --paper: #fffdf7;
  --ink: #17342e;
  --text: #38564d;
  --muted: #77877f;
  --hair: rgba(23, 52, 46, .12);
  --green: #25b979;
  --deep: #08794e;
  --blue: #3a93e8;
  --amber: #eaa13b;
  --red: #e85d5d;
  --mint: #e8f8ef;
  --sky: #eaf4ff;
  --cream: #fff4dc;
  --shadow-soft: 0 16px 42px rgba(23, 52, 46, .08);
  --shadow-deep: 0 32px 90px rgba(23, 52, 46, .14);
  --ease: cubic-bezier(.22, 1, .36, 1);
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  overflow-x: hidden;
  color: var(--ink);
  background:
    radial-gradient(circle at 0% 8%, rgba(37, 185, 121, .12), transparent 28rem),
    radial-gradient(circle at 100% 14%, rgba(58, 147, 232, .12), transparent 28rem),
    linear-gradient(180deg, #fbfffb, var(--bg) 48%, #eef8f2);
  font-family: var(--font);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(23,52,46,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23,52,46,.028) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 72%);
}

a { color: inherit; text-decoration: none; }
button { border: 0; font: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }

.shell { position: relative; z-index: 1; width: calc(100% - 48px); max-width: 1180px; margin: 0 auto; }
.nav {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  width: calc(100% - 48px);
  max-width: 1040px;
  margin: 18px auto 0;
  padding: 8px 10px 8px 12px;
  border: 1px solid var(--hair);
  border-radius: 999px;
  background: rgba(255,253,247,.92);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; font-size: 15px; font-weight: 900; white-space: nowrap; }
.brand img { width: 34px; height: 34px; border-radius: 12px; }
.nav-links { display: flex; justify-content: center; gap: 4px; color: var(--muted); font-size: 13px; font-weight: 750; }
.nav-links a { padding: 9px 12px; border-radius: 999px; transition: .24s var(--ease); }
.nav-links a:hover { color: var(--deep); background: var(--mint); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 17px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 900;
  white-space: nowrap;
  transition: transform .24s var(--ease), box-shadow .24s var(--ease);
}
.btn:hover { transform: translateY(-1px); }
.btn span { display: grid; place-items: center; width: 25px; height: 25px; border-radius: 50%; background: rgba(255,255,255,.22); }
.btn-primary { color: #fffdf7; background: var(--green); box-shadow: 0 15px 32px rgba(37,185,121,.24); }
.btn-soft { color: var(--deep); background: rgba(255,255,255,.78); border: 1px solid rgba(37,185,121,.25); }
.btn-soft span { background: rgba(37,185,121,.12); }

.screen { display: grid; align-items: center; min-height: 760px; padding: 84px 0; opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.screen.is-visible { opacity: 1; transform: translateY(0); }
.screen.compact { min-height: 680px; }
.hero { grid-template-columns: minmax(0, .78fr) minmax(520px, 1fr); gap: clamp(34px, 6vw, 76px); }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; max-width: 100%; padding: 7px 11px; border: 1px solid rgba(37,185,121,.22); border-radius: 999px; color: var(--deep); background: var(--mint); font-size: 12px; font-weight: 900; }
.eyebrow i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 0 rgba(37,185,121,.35); animation: pulse 2.4s var(--ease) infinite; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 18px; font-size: clamp(34px, 4vw, 52px); line-height: 1.12; font-weight: 900; letter-spacing: 0; }
h2 { margin-bottom: 12px; font-size: clamp(28px, 3vw, 40px); line-height: 1.18; font-weight: 900; letter-spacing: 0; }
h1 span, h2 span { display: block; }
h3 { margin-bottom: 8px; font-size: 18px; line-height: 1.25; font-weight: 900; }
.lead, .section-head p, .cta-panel p, .knowledge-panel p { color: var(--text); font-size: 16px; font-weight: 680; }
.lead { max-width: 570px; margin-bottom: 0; font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.signal-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; max-width: 600px; margin-top: 26px; }
.signal-row div { padding: 14px; border: 1px solid var(--hair); border-radius: 18px; background: rgba(255,253,247,.78); box-shadow: var(--shadow-soft); }
.signal-row b { display: block; font-size: 17px; font-weight: 900; }
.signal-row span { display: block; margin-top: 2px; color: var(--muted); font-size: 12px; font-weight: 750; }

.product-window, .feature-stage, .knowledge-panel, .source-panel, .cta-panel, .compliance-card {
  border: 1px solid var(--hair);
  border-radius: 28px;
  background: rgba(255,253,247,.86);
  box-shadow: var(--shadow-deep);
}
.window-bar { display: flex; align-items: center; justify-content: space-between; min-width: 0; padding: 14px 16px; border-bottom: 1px solid var(--hair); }
.lights { display: flex; gap: 7px; }
.lights i { width: 10px; height: 10px; border-radius: 50%; background: var(--red); }
.lights i:nth-child(2) { background: var(--amber); }
.lights i:nth-child(3) { background: var(--green); }
.url { padding: 7px 12px; overflow: hidden; border-radius: 999px; color: var(--muted); background: #f0f6f2; font-size: 12px; font-weight: 800; text-overflow: ellipsis; white-space: nowrap; }
.mini-home { display: grid; gap: 14px; padding: 18px; background: linear-gradient(180deg, rgba(255,253,247,.94), rgba(246,250,246,.76)); }
.mini-top { display: flex; justify-content: space-between; align-items: center; }
.mini-top strong { display: flex; align-items: center; gap: 8px; font-size: 18px; font-weight: 900; }
.mini-top img { width: 28px; height: 28px; border-radius: 10px; }
.baby-card, .next-card, .plan-card { border: 1px solid rgba(23,52,46,.09); border-radius: 24px; background: rgba(255,255,255,.86); box-shadow: var(--shadow-soft); }
.baby-card { display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: center; padding: 16px; background: linear-gradient(135deg, #eaf6ff, #f8fcff 72%); }
.avatar { display: grid; place-items: center; width: 74px; height: 74px; border: 4px solid #fff; border-radius: 50%; color: var(--deep); background: #dff4e9; font-size: 26px; font-weight: 900; }
.baby-card b { display: block; font-size: 24px; }
.baby-card span:not(.avatar) { display: block; color: var(--muted); font-size: 13px; font-weight: 750; }
.next-card { padding: 16px; border-color: rgba(234,161,59,.38); background: linear-gradient(180deg, #fffaf0, #fffdf8); }
.next-card > span { color: #6e5a31; font-size: 13px; font-weight: 850; }
.next-card > b { display: block; margin-top: 6px; color: #251b14; font-size: 23px; line-height: 1.2; }
.next-card small { color: var(--muted); font-size: 12px; }
.risk-card { margin-top: 12px; padding: 14px; border: 1px solid rgba(232,93,93,.2); border-radius: 18px; background: #fff0f0; }
.risk-card strong { display: block; color: #d64747; font-weight: 900; }
.risk-card em { font-style: normal; font-size: 34px; }
.risk-card span { display: block; margin-top: 8px; color: var(--muted); font-size: 13px; font-weight: 750; }
.risk-card i { display: inline-flex; margin-top: 10px; padding: 8px 15px; border-radius: 999px; color: #fff; background: #e85d5d; font-style: normal; font-size: 13px; font-weight: 900; }
.quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; padding: 2px 4px; }
.quick-grid span { display: grid; justify-items: center; gap: 6px; color: var(--text); font-size: 21px; font-weight: 850; text-align: center; }
.quick-grid b { font-size: 12px; }
.plan-card { padding: 15px; }
.plan-card header, .plan-card div { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center; }
.plan-card header { margin-bottom: 10px; }
.plan-card div { min-height: 56px; padding: 10px 0; border-top: 1px solid rgba(23,52,46,.08); }
.plan-card span { color: var(--muted); font-size: 12px; font-weight: 750; }
.plan-card em { grid-row: 1 / 3; grid-column: 2; padding: 6px 9px; border-radius: 10px; color: #2471c8; background: #eaf4ff; font-style: normal; font-size: 12px; font-weight: 900; }

.section-head { max-width: 760px; margin-bottom: 32px; }
.feature-layout, .knowledge-layout, .cta-layout { display: grid; grid-template-columns: minmax(390px, .95fr) minmax(0, 1.05fr); gap: 24px; align-items: start; }
.module-list { display: grid; gap: 12px; align-content: start; }
.module { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 14px; min-height: 98px; padding: 16px; border: 1px solid var(--hair); border-radius: 22px; background: rgba(255,253,247,.78); box-shadow: var(--shadow-soft); color: inherit; text-align: left; transition: .24s var(--ease); }
.module:hover { transform: translateY(-2px); }
.module:focus-visible { outline: 3px solid rgba(37,185,121,.34); outline-offset: 3px; }
.module.active { border-color: rgba(37,185,121,.34); background: #fffef9; }
.module span { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 16px; color: var(--deep); background: var(--mint); font-weight: 900; }
.module:nth-child(2) span { color: #1d6aa3; background: #eaf4ff; }
.module:nth-child(3) span { color: #8a5b0c; background: var(--cream); }
.module:nth-child(4) span { color: #a84942; background: #fff0ed; }
.module b { display: block; font-size: 18px; }
.module small { display: block; max-width: 28em; margin-top: 4px; color: var(--text); font-size: 13px; line-height: 1.45; font-weight: 680; }
.feature-stage { display: grid; grid-template-columns: minmax(0, .82fr) minmax(300px, 1fr); gap: 18px; padding: 22px; overflow: hidden; background: linear-gradient(120deg, rgba(255,255,255,.86), rgba(232,248,239,.76)); }
.stage-copy { display: grid; align-content: start; gap: 16px; min-width: 0; }
.stage-copy > span { color: var(--deep); font-size: 12px; font-weight: 900; }
.stage-copy h3 { font-size: 23px; }
.stage-copy p { color: var(--text); font-size: 15px; font-weight: 700; }
.tag-row { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-row span { min-height: 28px; padding: 5px 10px; border-radius: 999px; color: var(--deep); background: rgba(37,185,121,.1); font-size: 12px; font-weight: 850; }
.journey-steps { display: grid; gap: 12px; }
.journey-steps div { display: grid; grid-template-columns: 54px 1fr; gap: 10px 14px; align-items: center; min-height: 76px; padding: 13px; border: 1px solid rgba(23,52,46,.09); border-radius: 20px; background: rgba(255,255,255,.72); }
.journey-steps span { display: grid; place-items: center; grid-row: 1 / 4; width: 54px; height: 54px; border-radius: 18px; color: var(--deep); background: var(--mint); font-weight: 900; }
.journey-steps b { font-size: 14px; }
.journey-steps small { color: var(--muted); font-weight: 750; }
.journey-steps em { justify-self: start; padding: 5px 8px; border-radius: 999px; color: var(--deep); background: var(--mint); font-style: normal; font-size: 12px; font-weight: 850; }
.device-stage { min-width: 0; padding: 10px; border: 1px solid rgba(23,52,46,.1); border-radius: 28px; background: rgba(255,255,255,.72); }
.stage-top { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding: 8px 8px 14px; color: var(--muted); font-size: 12px; font-weight: 850; }
.stage-top > span:first-child { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stage-dots { display: flex; gap: 5px; }
.stage-dots i { width: 6px; height: 6px; border-radius: 50%; background: rgba(23,52,46,.22); }
.stage-dots i.active { width: 18px; border-radius: 99px; background: var(--green); }
.phone-bezel { position: relative; width: min(100%, 300px); margin: 0 auto; padding: 11px; border-radius: 34px; background: linear-gradient(180deg, #263832, #0f1916); box-shadow: 0 26px 60px rgba(23,52,46,.22); }
.phone-bezel::before { content: ""; position: absolute; top: 11px; left: 50%; width: 78px; height: 20px; border-radius: 0 0 16px 16px; background: #101916; transform: translateX(-50%); z-index: 2; }
.phone-screen { overflow: hidden; min-height: 610px; border-radius: 25px; background: #fffdf7; transition: transform .48s var(--ease), opacity .22s var(--ease); }
.feature-stage.is-changing .phone-screen { opacity: .68; transform: scale(.985); }
.stage-caption { display: grid; gap: 6px; margin: 14px 0 0; padding: 12px; border-radius: 18px; color: var(--text); background: rgba(255,255,255,.72); font-size: 13px; font-weight: 750; }
.stage-caption em { color: var(--muted); font-style: normal; }

.mp-page { display: grid; align-content: start; gap: 12px; min-height: 100%; padding: 34px 16px 18px; background: linear-gradient(180deg, #fffdf7, #f4fbf6 62%, #fffdf7); color: #24342f; font-size: 13px; }
.mp-status, .mp-title, .mp-row, .mp-icon-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.mp-status { font-size: 11px; font-weight: 900; }
.mp-title { display: grid; grid-template-columns: 24px 1fr 28px; min-height: 34px; text-align: center; font-weight: 900; }
.mp-title span { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: rgba(255,255,255,.78); color: #5c7169; }
.mp-tabs { display: flex; gap: 7px; overflow: hidden; }
.mp-chip, .mp-badge { display: inline-flex; align-items: center; justify-content: center; border-radius: 999px; color: #18764d; background: #e6f7ee; font-size: 10px; font-weight: 900; white-space: nowrap; }
.mp-chip { min-height: 27px; padding: 0 10px; font-size: 11px; }
.mp-chip.on { background: #dff4e9; }
.mp-badge { flex: 0 0 auto; padding: 5px 8px; }
.mp-badge.blue { color: #2b72bd; background: #eaf4ff; }
.mp-badge.orange { color: #9b6413; background: #fff1d8; }
.mp-card, .mp-field, .mp-result, .mp-mini, .mp-detail-hero { padding: 12px; border: 1px solid rgba(23,52,46,.09); border-radius: 18px; background: rgba(255,255,255,.88); box-shadow: 0 10px 28px rgba(80,62,42,.07); }
.mp-card.tint { background: linear-gradient(135deg, #eaf6ff, #fffdf7); }
.mp-card.warn, .mp-detail-hero { border-color: rgba(234,161,59,.3); background: #fff9ed; }
.mp-result { border-color: rgba(232,93,93,.2); background: #fff0f0; }
.mp-row + .mp-row { margin-top: 9px; padding-top: 9px; border-top: 1px solid rgba(23,52,46,.07); }
.mp-main { min-width: 0; }
.mp-main b, .mp-field b, .mp-mini b { display: block; overflow-wrap: anywhere; color: #263832; font-size: 14px; font-weight: 900; }
.mp-main span, .mp-field span, .mp-mini span { display: block; margin-top: 3px; color: #778980; font-size: 11px; font-weight: 750; }
.mp-detail-hero { display: grid; gap: 8px; }
.mp-detail-hero strong { font-size: 20px; color: #281d14; }
.mp-action { display: flex; align-items: center; justify-content: center; min-height: 34px; border-radius: 999px; color: #fff; background: var(--green); font-weight: 900; box-shadow: 0 10px 20px rgba(36,166,106,.2); }
.mp-timeline { position: relative; display: grid; gap: 10px; padding-left: 18px; }
.mp-timeline::before { content: ""; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 2px; border-radius: 99px; background: linear-gradient(#34b979, #3a93e8, #f5a623); opacity: .34; }
.mp-node { position: relative; display: grid; gap: 6px; }
.mp-node::before { content: ""; position: absolute; left: -17px; top: 6px; width: 10px; height: 10px; border: 2px solid #fff; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 3px #dff4e9; }
.mp-node.current::before { background: #f07a3f; box-shadow: 0 0 0 3px #fff1e8; }
.mp-node h4 { margin: 0; color: #6b7c74; font-size: 11px; font-weight: 900; }
.mp-vaccine { display: flex; justify-content: space-between; gap: 8px; padding: 8px 9px; border-radius: 13px; background: rgba(255,255,255,.82); }
.mp-vaccine b { color: #27362f; font-size: 12px; }
.mp-vaccine span { color: #7b8b84; font-size: 10px; font-weight: 750; white-space: nowrap; }
.mp-icon-list { display: grid; gap: 9px; }
.mp-icon-row { display: grid; grid-template-columns: 40px 1fr auto; }
.mp-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 14px; color: #3a93e8; background: #eaf4ff; font-weight: 900; }
.mp-icon.green { color: var(--deep); background: var(--mint); }
.mp-mini-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }

.knowledge-layout { grid-template-columns: 1fr 1fr; }
.knowledge-panel, .cta-panel, .compliance-card { padding: 24px; box-shadow: var(--shadow-soft); }
.source-table { display: grid; gap: 10px; margin-top: 20px; }
.source-table div { display: grid; grid-template-columns: 96px 1fr auto; gap: 12px; align-items: center; min-height: 56px; padding: 10px 12px; border: 1px solid rgba(23,52,46,.08); border-radius: 16px; background: rgba(255,255,255,.74); }
.source-table span { color: var(--text); font-size: 13px; font-weight: 680; }
.source-table em { color: var(--muted); font-style: normal; font-size: 12px; font-weight: 750; white-space: nowrap; }
.source-panel { overflow: hidden; box-shadow: var(--shadow-soft); }
.source-panel img { width: 100%; height: 100%; min-height: 360px; object-fit: cover; object-position: center; opacity: .86; }
.cta-layout { grid-template-columns: minmax(0, .98fr) minmax(360px, .52fr); }
.conversion-path { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
.conversion-path div { min-height: 128px; padding: 16px; border: 1px solid rgba(23,52,46,.09); border-radius: 20px; background: #fff; }
.conversion-path span { display: block; margin-top: 8px; color: var(--muted); font-size: 13px; font-weight: 680; }
.compliance-card { display: grid; align-content: start; gap: 17px; }
.compliance-card img { width: 152px; height: 152px; border-radius: 24px; object-fit: cover; box-shadow: var(--shadow-soft); }
.legal { display: grid; border-top: 1px solid var(--hair); }
.legal div { display: flex; justify-content: space-between; gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--hair); color: var(--text); font-size: 13px; font-weight: 750; }
.legal b { color: var(--muted); }
.footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 18px; padding: 18px 0 42px; border-top: 1px solid var(--hair); color: var(--muted); font-size: 13px; font-weight: 700; }
.footer div { display: flex; flex-wrap: wrap; gap: 10px 18px; }
.modal { position: fixed; inset: 0; z-index: 20; display: none; place-items: center; padding: 20px; background: rgba(23,52,46,.38); backdrop-filter: blur(14px); }
.modal.open { display: grid; }
.modal-card { width: min(410px, 100%); padding: 26px; border: 10px solid rgba(255,255,255,.48); border-radius: 28px; background: #fffdf7; text-align: center; box-shadow: 0 28px 90px rgba(23,52,46,.28); animation: modalIn .24s var(--ease) both; }
.modal-card img { width: 174px; height: 174px; margin: 0 auto 16px; border-radius: 24px; object-fit: cover; }
.modal-card p { margin: 0 auto 18px; max-width: 300px; color: var(--text); font-size: 14px; font-weight: 680; }
.modal-card .qr-source { margin-top: -8px; color: var(--muted); font-size: 12px; font-weight: 850; }
.modal-card div { display: flex; justify-content: center; gap: 10px; }
.empty-page { min-height: calc(100vh - 180px); padding: 82px 0 96px; }
.empty-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 28px;
  align-items: stretch;
  overflow: hidden;
  padding: clamp(24px, 5vw, 52px);
  border: 1px solid var(--hair);
  border-radius: 34px;
  background:
    linear-gradient(135deg, rgba(255,253,247,.92), rgba(232,248,239,.74)),
    radial-gradient(circle at 86% 8%, rgba(58,147,232,.16), transparent 18rem);
  box-shadow: var(--shadow-deep);
}
.empty-card::before {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -92px;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(37,185,121,.22);
  border-radius: 50%;
  background: rgba(255,255,255,.42);
}
.empty-copy { position: relative; z-index: 1; align-self: center; max-width: 620px; }
.empty-panel {
  position: relative;
  z-index: 1;
  display: grid;
  align-content: center;
  gap: 12px;
}
.empty-panel div {
  min-height: 108px;
  padding: 18px;
  border: 1px solid rgba(23,52,46,.09);
  border-radius: 22px;
  background: rgba(255,255,255,.76);
  box-shadow: var(--shadow-soft);
}
.empty-panel b { display: block; font-size: 17px; font-weight: 900; }
.empty-panel span { display: block; margin-top: 7px; color: var(--text); font-size: 13px; font-weight: 700; }
.doc-page { max-width: 860px; padding: 84px 0 96px; }
.doc-page section {
  margin-top: 22px;
  padding: 22px;
  border: 1px solid var(--hair);
  border-radius: 24px;
  background: rgba(255,253,247,.86);
  box-shadow: var(--shadow-soft);
}
.doc-page h1 { margin-top: 26px; }
.doc-page h2 { font-size: 24px; }
.doc-page p { color: var(--text); font-size: 15px; font-weight: 680; }
.doc-back {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(37,185,121,.24);
  border-radius: 999px;
  color: var(--deep);
  background: var(--mint);
  font-size: 13px;
  font-weight: 900;
}

@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(37,185,121,.35)} 70%{box-shadow:0 0 0 10px rgba(37,185,121,0)} 100%{box-shadow:0 0 0 0 rgba(37,185,121,0)} }
@keyframes modalIn { from{opacity:0; transform:translateY(10px) scale(.98)} to{opacity:1; transform:translateY(0) scale(1)} }

@media (max-width: 1040px) {
  .hero, .feature-layout, .feature-stage, .knowledge-layout, .cta-layout, .empty-card { grid-template-columns: 1fr; }
  .product-window { max-width: 760px; }
}
@media (max-width: 760px) {
  .shell, .nav { width: calc(100% - 24px); }
  .nav { grid-template-columns: auto auto; gap: 8px; }
  .nav-links { display: none; }
  .nav .btn { width: 92px; min-height: 40px; padding: 0; font-size: 13px; }
  .nav .btn span { display: none; }
  .screen { min-height: auto; padding: 58px 0; }
  h1 { font-size: 30px; line-height: 1.16; }
  h2 { font-size: 26px; }
  .hero-actions, .modal-card div { display: grid; grid-template-columns: 1fr; }
  .signal-row, .quick-grid, .module, .conversion-path, .source-table div { grid-template-columns: 1fr; }
  .feature-stage, .knowledge-panel, .cta-panel, .compliance-card { padding: 18px; border-radius: 22px; }
  .journey-steps div { grid-template-columns: 1fr; }
  .journey-steps span { grid-row: auto; }
  .phone-bezel { width: min(100%, 292px); }
  .source-panel img { min-height: 260px; }
  .compliance-card img { width: 132px; height: 132px; }
}
@media (prefers-reduced-motion: reduce) {
  .screen { opacity: 1; transform: none; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}