:root {
  --ink: #13241c;
  --forest: #1a3a2c;
  --pine: #265640;
  --leaf: #3d7a56;
  --ginkgo: #c9a227;
  --gold: #e4c45c;
  --gold-soft: #f3e3a8;
  --cream: #f5f0e6;
  --paper: #fffdf8;
  --sand: #e7dfd0;
  --warm: #b86a4a;
  --muted: #5d6d64;
  --line: rgba(19, 36, 28, 0.1);
  --shadow: 0 18px 50px rgba(19, 36, 28, 0.12);
  --radius: 22px;
  --nav-h: 78px;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }

.skip-link {
  position: absolute; left: 16px; top: -40px; z-index: 200;
  background: var(--ginkgo); color: var(--ink); padding: 8px 14px; border-radius: 8px;
}
.skip-link:focus { top: 12px; }

.site-nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  transition: background .35s ease, box-shadow .35s ease;
}
.site-nav.is-solid {
  background: rgba(245, 240, 230, 0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 30px rgba(19, 36, 28, 0.08);
}
.nav-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  color: #fff;
}
.site-nav.is-solid .logo { color: var(--ink); }
.logo-mark {
  font-size: 30px; color: var(--ginkgo);
  animation: leaf-sway 4s ease-in-out infinite;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.15; }
.logo-text strong { font-family: var(--serif); font-size: 20px; letter-spacing: .04em; }
.logo-text span { font-size: 11px; letter-spacing: .18em; opacity: .72; text-transform: uppercase; }
.nav-links { display: flex; align-items: center; gap: 20px; list-style: none; }
.nav-links a {
  color: rgba(255,255,255,.86);
  font-size: 15px;
  position: relative;
}
.site-nav.is-solid .nav-links a { color: var(--ink); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 2px; background: var(--ginkgo); transition: width .25s ease;
}
.nav-links a:hover::after { width: 100%; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; cursor: pointer; border-radius: 999px;
  padding: 12px 22px; font-size: 15px; font-weight: 600;
  position: relative; overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn i { font-size: 17px; }
.btn:hover { transform: translateY(-2px); }
.btn-gold {
  background: var(--ginkgo); color: #1a1404;
  box-shadow: 0 8px 20px rgba(201,162,39,.28);
}
.btn-gold:hover { background: var(--gold); }
.btn-gold::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.35) 50%, transparent 70%);
  transform: translateX(-120%);
}
.btn-gold:hover::after { animation: shine .7s ease; }
.btn-ghost {
  background: transparent; color: #fff;
  border: 1px solid rgba(255,255,255,.45);
}
.nav-toggle {
  display: none; width: 42px; height: 42px; border: 0; background: transparent;
  color: inherit; font-size: 24px;
}
.site-nav:not(.is-solid) .nav-toggle { color: #fff; }

.hero, .cta {
  position: relative; color: #fff; isolation: isolate; overflow: hidden;
}
.hero {
  min-height: 100vh;
  display: flex; align-items: flex-end;
  background: #122018;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: center/cover no-repeat;
  animation: kenburns 22s ease-in-out infinite alternate;
}
.hero::before, .cta::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(90deg, rgba(10,22,16,.8) 0%, rgba(10,22,16,.48) 55%, rgba(10,22,16,.22) 100%),
    linear-gradient(180deg, rgba(10,22,16,.15) 0%, rgba(10,22,16,.55) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto 120px;
  padding-top: 140px;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; letter-spacing: .16em;
  color: var(--gold-soft); margin-bottom: 22px;
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--ginkgo); }
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(40px, 6vw, 70px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: .04em;
}
.hero h1 .h1-product {
  display: block;
  font-family: var(--sans);
  font-size: clamp(15px, 1.6vw, 18px);
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--gold-soft);
  margin-bottom: 12px;
}
.hero h1 em { font-style: normal; color: var(--gold); }
.hero-lead {
  margin: 22px 0 32px;
  max-width: 32em;
  font-size: 18px;
  color: rgba(255,255,255,.86);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-badge {
  margin-top: 36px;
  display: flex; flex-wrap: wrap; gap: 16px 28px;
  color: rgba(255,255,255,.8);
  font-size: 14px;
}
.hero-badge i { color: var(--gold); margin-right: 6px; }
.hero-badge b { color: #fff; font-weight: 600; margin-right: 4px; }

.trust { position: relative; z-index: 2; margin-top: -72px; }
.trust-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  background: var(--paper);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.trust-item { padding: 26px 22px; border-right: 1px solid var(--line); }
.trust-item:last-child { border-right: 0; }
.trust-item i {
  font-size: 28px; color: var(--ginkgo); display: block; margin-bottom: 10px;
  transition: transform .35s ease;
}
.trust-item:hover i { transform: translateY(-3px) scale(1.08); }
.trust-item strong { display: block; font-family: var(--serif); font-size: 20px; margin-bottom: 4px; }
.trust-item p { color: var(--muted); font-size: 14px; }

section { padding: 96px 0; scroll-margin-top: 88px; }
.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker { color: var(--leaf); font-size: 13px; letter-spacing: .2em; font-weight: 600; }
.section-head h2, .split-copy h2, .cta-copy h2 {
  font-family: var(--serif);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.28;
  margin: 10px 0 12px;
}
.section-head p, .split-copy > p { color: var(--muted); font-size: 16px; }

.about { padding-top: 36px; }
.about-card {
  background: var(--paper);
  border-radius: var(--radius);
  padding: 36px 40px;
  box-shadow: 0 10px 28px rgba(19,36,28,.05);
}
.about-card h2 { max-width: 18em; }
.about-card p { color: var(--muted); font-size: 16px; max-width: 52em; }

.pain { background: var(--paper); }
.pain-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pain-card {
  background: var(--cream);
  border-radius: 18px;
  padding: 26px 24px;
  transition: transform .3s ease, box-shadow .3s ease;
}
.pain-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.pain-card i { font-size: 28px; color: var(--ginkgo); }
.pain-card h3 { margin: 12px 0 8px; font-size: 20px; }
.pain-card p { color: var(--muted); font-size: 15px; }

.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.feature-card {
  display: grid; grid-template-columns: 68px 1fr; gap: 16px;
  background: var(--paper);
  border-radius: 20px;
  padding: 24px;
  border: 1px solid transparent;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(201,162,39,.45);
  box-shadow: 0 16px 36px rgba(19,36,28,.08);
}
.feature-icon {
  width: 68px; height: 68px; border-radius: 18px;
  background: linear-gradient(160deg, #2a5a42, #1a3a2c);
  color: var(--gold);
  display: grid; place-items: center;
  font-size: 30px;
}
.feature-card:hover .feature-icon { animation: icon-pop .45s ease; }
.feature-card h3 { font-size: 19px; margin-bottom: 6px; }
.feature-card p { color: var(--muted); font-size: 14px; }

.evidence { background: var(--forest); color: #fff; }
.evidence .kicker { color: var(--gold); }
.evidence .section-head p { color: rgba(255,255,255,.7); }
.evidence-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.evidence-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 22px;
  padding: 32px 26px;
  text-align: center;
  transition: transform .3s ease, background .3s ease;
}
.evidence-card:hover { transform: translateY(-8px); background: rgba(255,255,255,.1); }
.evidence-icon {
  width: 76px; height: 76px; margin: 0 auto 18px;
  border-radius: 50%;
  background: rgba(201,162,39,.16);
  color: var(--gold);
  display: grid; place-items: center;
  font-size: 34px;
  animation: pulse-ring 2.8s ease-in-out infinite;
}
.evidence-card:nth-child(2) .evidence-icon { animation-delay: .4s; }
.evidence-card:nth-child(3) .evidence-icon { animation-delay: .8s; }
.evidence-card h3 { font-size: 22px; margin-bottom: 10px; }
.evidence-card p { color: rgba(255,255,255,.72); font-size: 15px; }

.split {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 52px; align-items: center;
}
.split.reverse { grid-template-columns: .95fr 1.05fr; }
.split-visual { position: relative; overflow: hidden; border-radius: 28px; }
.split-visual img {
  width: 100%; height: 480px; object-fit: cover;
  box-shadow: var(--shadow);
  transition: transform 1.1s ease;
}
.split-visual:hover img { transform: scale(1.05); }
.split-chip {
  position: absolute; left: 22px; bottom: 22px;
  background: rgba(255,253,248,.95);
  padding: 14px 18px; border-radius: 16px;
  box-shadow: 0 10px 24px rgba(19,36,28,.12);
  animation: chip-in .8s ease both;
}
.split-chip b { display: block; font-family: var(--serif); font-size: 20px; }
.split-chip span { color: var(--muted); font-size: 13px; }
.check-list { list-style: none; margin-top: 20px; display: grid; gap: 12px; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; font-size: 16px; }
.check-list i {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--ginkgo); color: #1a1404;
  display: grid; place-items: center; flex-shrink: 0; margin-top: 3px;
  font-size: 13px;
}

.flow { background: var(--paper); }
.flow-track { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.flow-step {
  background: #fff;
  border-radius: 18px;
  padding: 22px 18px;
  min-height: 210px;
  box-shadow: 0 8px 24px rgba(19,36,28,.05);
  transition: transform .3s ease;
}
.flow-step:hover { transform: translateY(-8px); }
.flow-step > i { font-size: 26px; color: var(--leaf); display: block; margin-bottom: 8px; }
.flow-step .idx { font-family: var(--serif); color: var(--ginkgo); font-size: 24px; display: block; margin-bottom: 8px; }
.flow-step h3 { font-size: 17px; margin-bottom: 8px; }
.flow-step p { color: var(--muted); font-size: 13px; }

.level-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 20px; }
.level-card {
  background: var(--paper); border-radius: 18px; padding: 22px 16px;
  text-align: center; border-top: 4px solid var(--ginkgo);
  transition: transform .3s ease;
}
.level-card:hover { transform: translateY(-4px); }
.level-card:nth-child(2) { border-top-color: #8db36a; }
.level-card:nth-child(3) { border-top-color: #d4a24a; }
.level-card:nth-child(4) { border-top-color: var(--warm); }
.level-card strong { display: block; font-family: var(--serif); font-size: 20px; margin-bottom: 6px; }
.level-card p { color: var(--muted); font-size: 13px; }
.dim-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.dim-item { background: #efe8d8; border-radius: 16px; padding: 18px; }
.dim-item i { color: var(--leaf); font-size: 22px; display: block; margin-bottom: 6px; }
.dim-item b { display: block; margin-bottom: 4px; }
.dim-item span { color: var(--muted); font-size: 13px; }

.dual { background: var(--paper); }
.device-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.device-card { background: var(--cream); border-radius: 24px; padding: 26px; }
.device-card h3 { font-family: var(--serif); font-size: 24px; margin: 6px 0 8px; }
.device-card > p { color: var(--muted); margin-bottom: 18px; }
.mock-web, .mock-phone {
  background: #fff; border-radius: 16px; overflow: hidden;
  box-shadow: 0 12px 32px rgba(19,36,28,.08);
}
.mock-bar { height: 36px; background: #edf2ee; display: flex; align-items: center; gap: 6px; padding: 0 14px; }
.mock-bar i { width: 8px; height: 8px; border-radius: 50%; background: #c9d2cc; }
.mock-body { padding: 16px; display: grid; gap: 10px; }
.stat-pills { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.stat-pills span {
  background: #f4efe4; border-radius: 10px; padding: 10px 8px; text-align: center; font-size: 12px;
}
.stat-pills b { display: block; font-size: 20px; color: var(--forest); }
.mock-line {
  height: 42px; border-radius: 10px; background: linear-gradient(90deg, #f0ebe0, #f7f3ea);
  display: flex; align-items: center; justify-content: space-between; padding: 0 12px; font-size: 13px;
}
.tag { background: #efe0b0; color: #5c4a12; border-radius: 999px; padding: 2px 8px; font-size: 11px; }
.tag.ok { background: #d7ead6; color: #245c45; }
.mock-phone-wrap { display: flex; justify-content: center; }
.mock-phone {
  width: 270px; border-radius: 28px; border: 8px solid #1a3a2c;
  animation: float-phone 4.5s ease-in-out infinite;
}
.mock-phone .mock-bar { background: var(--forest); color: #fff; justify-content: center; font-size: 13px; }
.phone-tabs { display: grid; grid-template-columns: repeat(3, 1fr); text-align: center; font-size: 12px; }
.phone-tabs span { padding: 8px 0; color: var(--muted); }
.phone-tabs .on { color: var(--forest); font-weight: 700; border-bottom: 2px solid var(--ginkgo); }

.security { background: var(--forest); color: #fff; }
.security .kicker { color: var(--gold); }
.security .section-head { max-width: 720px; }
.security .section-head p { color: rgba(255,255,255,.7); }
.security-flag {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: fit-content; margin: -12px auto 28px;
  padding: 8px 18px; border-radius: 999px;
  background: rgba(201,162,39,.14);
  border: 1px solid rgba(201,162,39,.35);
  color: var(--gold-soft);
  font-size: 13px; font-weight: 600; letter-spacing: .06em;
}
.security-flag i { font-size: 18px; color: var(--gold); }
.security-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.security-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 22px;
  padding: 32px 26px;
  transition: transform .3s ease, background .3s ease;
}
.security-card:hover { transform: translateY(-8px); background: rgba(255,255,255,.1); }
.security-icon {
  width: 68px; height: 68px; margin-bottom: 18px;
  border-radius: 18px;
  background: rgba(201,162,39,.16);
  color: var(--gold);
  display: grid; place-items: center;
  font-size: 30px;
}
.security-card:hover .security-icon { animation: icon-pop .45s ease; }
.security-card h3 { font-size: 20px; margin-bottom: 10px; }
.security-card p { color: rgba(255,255,255,.72); font-size: 15px; }

.scene-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.scene-card { position: relative; height: 340px; border-radius: 22px; overflow: hidden; }
.scene-card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .8s ease;
}
.scene-card:hover img { transform: scale(1.08); }
.scene-card figcaption {
  position: absolute; inset: auto 0 0 0;
  padding: 22px 16px 16px;
  background: linear-gradient(180deg, transparent, rgba(10,20,16,.84));
  color: #fff;
}
.scene-card h3 { font-family: var(--serif); font-size: 20px; margin-bottom: 2px; }
.scene-card p { font-size: 13px; color: rgba(255,255,255,.78); }

.faq { background: var(--paper); }
.faq-list { display: grid; gap: 12px; max-width: 860px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border-radius: 16px;
  padding: 0 22px;
  border: 1px solid var(--line);
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  font-weight: 600;
  font-size: 17px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-weight: 400;
  color: var(--ginkgo);
  font-size: 22px;
  line-height: 1;
  transition: transform .25s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  color: var(--muted);
  font-size: 15px;
  padding: 0 0 18px;
  line-height: 1.75;
}

.cta { padding: 108px 0; }
.cta .hero-bg { animation-duration: 26s; }
.cta-grid {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr .9fr; gap: 44px; align-items: center;
}
.cta-copy .kicker { color: var(--gold); }
.cta-copy p { color: rgba(255,255,255,.78); }
.lead-form {
  background: var(--paper); color: var(--ink);
  border-radius: 24px; padding: 30px 26px;
  box-shadow: var(--shadow);
}
.lead-form h3 { font-family: var(--serif); font-size: 24px; margin-bottom: 4px; }
.lead-form .sub { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; color: var(--muted); }
.field input, .field select, .field textarea {
  border: 1px solid var(--sand); background: #fff; border-radius: 12px;
  padding: 11px 13px; font-size: 15px; outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--ginkgo); box-shadow: 0 0 0 3px rgba(201,162,39,.18);
}
.field textarea { min-height: 80px; resize: vertical; }
.form-actions { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.form-actions .btn { width: 100%; padding: 14px; }
.form-hint { font-size: 12px; color: var(--muted); text-align: center; }
.form-success { display: none; text-align: center; padding: 36px 12px; }
.form-success.is-on { display: block; animation: rise .5s ease; }
.lead-form.is-done .form-grid,
.lead-form.is-done .form-actions,
.lead-form.is-done .sub { display: none; }
.form-success .ok {
  width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 50%;
  background: var(--forest); color: var(--gold); display: grid; place-items: center;
  font-size: 30px;
}

.site-footer { background: #0e1a14; color: rgba(255,255,255,.72); padding: 44px 0 24px; }
.footer-top {
  display: flex; justify-content: space-between; gap: 28px; padding-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand strong { display: block; color: #fff; font-family: var(--serif); font-size: 22px; margin-bottom: 6px; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links a:hover { color: var(--gold); }
.footer-bottom { padding-top: 16px; font-size: 13px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

.float-cta {
  position: fixed; right: 22px; bottom: 22px; z-index: 80;
  box-shadow: 0 10px 28px rgba(201,162,39,.35);
  animation: cta-bob 2.6s ease-in-out infinite;
}
.to-top {
  position: fixed; right: 22px; bottom: 82px; z-index: 80;
  width: 44px; height: 44px; border-radius: 50%; border: 0;
  background: var(--forest); color: #fff; cursor: pointer; font-size: 20px;
  opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .25s ease;
}
.to-top.is-on { opacity: 1; pointer-events: auto; }
.to-top:hover { transform: translateY(-3px); }

.reveal { opacity: 0; transform: translateY(28px); }
.reveal.in { animation: rise .7s ease forwards; }
.feature-grid .reveal:nth-child(2) { animation-delay: .08s; }
.feature-grid .reveal:nth-child(3) { animation-delay: .16s; }
.feature-grid .reveal:nth-child(4) { animation-delay: .24s; }
.feature-grid .reveal:nth-child(5) { animation-delay: .32s; }
.feature-grid .reveal:nth-child(6) { animation-delay: .4s; }
.evidence-grid .reveal:nth-child(2) { animation-delay: .12s; }
.evidence-grid .reveal:nth-child(3) { animation-delay: .24s; }
.security-grid .reveal:nth-child(2) { animation-delay: .12s; }
.security-grid .reveal:nth-child(3) { animation-delay: .24s; }
.flow-track .reveal:nth-child(2) { animation-delay: .08s; }
.flow-track .reveal:nth-child(3) { animation-delay: .16s; }
.flow-track .reveal:nth-child(4) { animation-delay: .24s; }
.flow-track .reveal:nth-child(5) { animation-delay: .32s; }

@keyframes rise { to { opacity: 1; transform: none; } }
@keyframes kenburns {
  from { transform: scale(1) translate(0); }
  to { transform: scale(1.08) translate(-1.5%, -1%); }
}
@keyframes shine { to { transform: translateX(120%); } }
@keyframes leaf-sway {
  0%, 100% { transform: rotate(-6deg); }
  50% { transform: rotate(6deg); }
}
@keyframes icon-pop {
  0% { transform: scale(1); }
  50% { transform: scale(1.12) rotate(-6deg); }
  100% { transform: scale(1); }
}
@keyframes pulse-ring {
  0%, 100% { box-shadow: 0 0 0 0 rgba(201,162,39,.28); }
  50% { box-shadow: 0 0 0 12px rgba(201,162,39,0); }
}
@keyframes float-phone {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes chip-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
@keyframes cta-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

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

@media (max-width: 980px) {
  .nav-links, .nav-inner .btn-nav { display: none; }
  .nav-links.is-open {
    display: flex; flex-direction: column;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: var(--paper); padding: 20px 24px 28px; gap: 16px;
    box-shadow: var(--shadow);
  }
  .nav-links.is-open a { color: var(--ink); }
  .nav-toggle { display: grid; place-items: center; }
  .trust-grid, .pain-grid, .feature-grid, .flow-track, .evidence-grid, .security-grid,
  .level-grid, .dim-row, .device-row, .scene-grid, .cta-grid, .form-grid, .split, .split.reverse {
    grid-template-columns: 1fr;
  }
  .split-visual img { height: 340px; }
  .trust-item { border-right: 0; border-bottom: 1px solid var(--line); }
  .scene-card { height: 260px; }
  .hero-content { margin-bottom: 90px; }
}

@media (max-width: 640px) {
  section { padding: 68px 0; }
  .container, .hero-content, .nav-inner { width: min(100% - 32px, 1180px); }
  .hero h1 { font-size: 34px; }
  .mock-phone { width: 100%; }
}