:root {
  --primary: #0f6f6c;
  --primary-dark: #0b5352;
  --primary-soft: #e5f2f0;
  --accent: #e8873a;
  --accent-soft: #fff0e2;
  --ink: #152229;
  --muted: #5c6b72;
  --bg: #f4f7f7;
  --surface: #ffffff;
  --line: #dce6e8;
  --blue: #2f6fb3;
  --shadow: 0 18px 50px rgba(22, 58, 61, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  overflow-x: hidden;
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

h1, h2, h3, p, ul {
  margin: 0;
}

ul {
  padding: 0;
  list-style: none;
}

button, input, select, textarea {
  font: inherit;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.section {
  padding: 88px 0;
}

.section--soft {
  background: var(--surface);
}

.section--tint {
  background: linear-gradient(180deg, #f4f7f7 0%, #eef6f4 100%);
}

.section-head {
  max-width: 820px;
  margin-bottom: 38px;
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 3px;
  border-radius: 999px;
  background: var(--accent);
}

.section-head h2 {
  margin-top: 12px;
  color: var(--ink);
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.2;
  letter-spacing: 0;
}

.section-head p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.btn-lg {
  min-height: 52px;
  padding: 0 24px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(15, 111, 108, 0.28);
}

.btn-outline {
  border-color: #bfd3d3;
  background: rgba(255, 255, 255, 0.72);
  color: var(--primary-dark);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.btn-light {
  background: #fff;
  color: var(--primary-dark);
}

.btn-light:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background: #d26d22;
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(232, 135, 58, 0.28);
}

.btn:disabled {
  cursor: wait;
  opacity: 0.65;
  transform: none;
  box-shadow: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.site-header.scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 30px rgba(21, 34, 41, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-logo {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.brand-text {
  display: grid;
  gap: 1px;
}

.brand-name {
  color: #0b5553;
  font-size: 20px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 0;
}

.brand-sub {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.2;
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 2px;
  color: #34464d;
  font-size: 15px;
  font-weight: 700;
  border-bottom: 3px solid transparent;
}

.nav-links a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  border-radius: 999px;
  background: var(--accent);
  opacity: 0;
  transform: scaleX(0.4);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--primary);
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgba(10, 33, 36, 0.55);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.24s ease, visibility 0.24s ease;
}

.nav-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 130;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--primary);
  cursor: pointer;
}

.menu-toggle span {
  position: relative;
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.menu-toggle span::before,
.menu-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.menu-toggle span::before {
  top: -6px;
}

.menu-toggle span::after {
  top: 6px;
}

.menu-toggle.open span {
  background: transparent;
}

.menu-toggle.open span::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle.open span::after {
  top: 0;
  transform: rotate(-45deg);
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 720px;
  overflow: hidden;
  background: #0a3f41;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(4, 28, 30, 0.92) 0%, rgba(7, 45, 47, 0.78) 46%, rgba(7, 52, 54, 0.38) 100%),
    url("../images/clinic-consultation.jpg");
  background-position: center;
  background-size: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 25, 27, 0.15) 0%, rgba(4, 25, 27, 0.74) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
  padding: 92px 0 56px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #ffc08b;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.hero-kicker::before {
  content: "";
  width: 24px;
  height: 3px;
  border-radius: 999px;
  background: var(--accent);
}

.hero-title {
  max-width: 900px;
  margin-top: 18px;
  color: #fff;
  font-size: clamp(42px, 7vw, 76px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 660px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  margin-top: 54px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.24);
}

.hero-metric strong {
  display: block;
  color: #fff;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.15;
  letter-spacing: 0;
}

.hero-metric span {
  display: block;
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
}

.page-hero {
  padding: 88px 0 62px;
  background:
    radial-gradient(circle at 82% 24%, rgba(255, 192, 139, 0.2), transparent 32%),
    linear-gradient(135deg, #0a3d3f 0%, #0d5c59 58%, #15706b 100%);
  color: #fff;
}

.page-hero .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 13px;
}

.page-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.86);
}

.page-hero h1 {
  max-width: 900px;
  margin-top: 16px;
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.16;
  letter-spacing: 0;
}

.page-hero p {
  max-width: 760px;
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 17px;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.module-card {
  min-height: 164px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.module-card:hover {
  border-color: rgba(15, 111, 108, 0.42);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.module-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 13px;
  font-weight: 900;
}

.module-card h3 {
  margin-top: 14px;
  color: var(--ink);
  font-size: 17px;
  line-height: 1.35;
}

.module-card p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.flow {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.flow-step {
  position: relative;
  min-height: 132px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.flow-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 13px;
  font-weight: 900;
}

.flow-step h3 {
  margin-top: 12px;
  color: var(--ink);
  font-size: 15px;
}

.flow-step p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.value-card {
  min-height: 230px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.value-card h3 {
  color: var(--ink);
  font-size: 20px;
}

.value-card p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.value-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border-radius: 8px;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 20px;
  font-weight: 900;
}

.split {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 56px;
  align-items: center;
}

.split-copy h2 {
  margin-top: 12px;
  color: var(--ink);
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.22;
  letter-spacing: 0;
}

.split-copy p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 16px;
}

.check-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  color: #33454c;
  font-size: 15px;
  font-weight: 600;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 18px;
  height: 10px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.demo-shell {
  overflow: hidden;
  border: 1px solid #bfd6d3;
  border-radius: 12px;
  background: #0d3537;
  box-shadow: var(--shadow);
}

.demo-top {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background: #0a2c2e;
}

.demo-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.32);
}

.demo-dot:first-child {
  background: #e8873a;
}

.demo-body {
  display: grid;
  grid-template-columns: 158px 1fr;
  min-height: 370px;
}

.demo-side {
  padding: 18px 14px;
  background: #0d2f31;
  color: #cde8e5;
}

.demo-side li {
  display: flex;
  align-items: center;
  min-height: 34px;
  padding: 0 10px;
  margin-bottom: 6px;
  border-radius: 6px;
  font-size: 12px;
}

.demo-side li.active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-weight: 800;
}

.demo-main {
  padding: 18px;
  background: #f7fbfa;
}

.demo-patient {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border: 1px solid #d7e6e3;
  border-radius: 8px;
  background: #fff;
}

.demo-patient strong {
  display: block;
  color: #123f41;
  font-size: 16px;
}

.demo-patient span {
  color: var(--muted);
  font-size: 12px;
}

.demo-tag {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #a65318;
  font-size: 12px;
  font-weight: 800;
}

.demo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.demo-card {
  padding: 12px;
  border: 1px solid #d7e6e3;
  border-radius: 8px;
  background: #fff;
}

.demo-card h4 {
  margin: 0;
  color: #53646a;
  font-size: 12px;
  font-weight: 700;
}

.demo-card strong {
  display: block;
  margin-top: 8px;
  color: #123f41;
  font-size: 20px;
  line-height: 1.1;
}

.demo-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 92px;
  margin-top: 8px;
}

.demo-chart span {
  flex: 1;
  min-width: 8px;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, #3ca09a 0%, #7bc5be 100%);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.detail-item {
  min-height: 172px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.detail-item h3 {
  color: var(--ink);
  font-size: 18px;
}

.detail-item p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}

.coop-card {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.coop-card + .coop-card {
  margin-top: 16px;
}

.coop-tag {
  align-self: start;
  padding: 12px 14px;
  border-radius: 8px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-size: 20px;
  font-weight: 900;
  line-height: 1.3;
}

.coop-card h3 {
  color: var(--ink);
  font-size: 22px;
}

.coop-card p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 15px;
}

.coop-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 22px;
  margin-top: 18px;
}

.coop-list li {
  position: relative;
  padding-left: 20px;
  color: #33454c;
  font-size: 14px;
}

.coop-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.custom-dev-note {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding: 22px 24px;
  border: 1px solid #f0c99c;
  border-radius: 8px;
  background: var(--accent-soft);
}

.custom-dev-note h3 {
  color: #9a4c13;
  font-size: 18px;
}

.custom-dev-note p {
  max-width: 960px;
  color: #5d4a38;
  font-size: 14px;
  line-height: 1.8;
}

.faq-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.faq-item + .faq-item {
  margin-top: 12px;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: 18px 20px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 16px;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
}

.faq-question::after {
  content: "+";
  flex: 0 0 auto;
  color: var(--primary);
  font-size: 24px;
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq-item.open .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  padding: 0 20px;
  overflow: hidden;
  color: var(--muted);
  font-size: 14px;
  transition: max-height 0.28s ease, padding 0.28s ease;
}

.faq-item.open .faq-answer {
  max-height: 320px;
  padding-bottom: 18px;
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 24px;
  align-items: start;
}

.contact-panel,
.contact-form {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.contact-panel h2,
.contact-form h2 {
  color: var(--ink);
  font-size: 24px;
}

.contact-panel > p,
.contact-form > p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
}

.contact-list {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.contact-list li {
  display: grid;
  gap: 2px;
}

.contact-list span {
  color: var(--muted);
  font-size: 13px;
}

.contact-list strong,
.contact-list a {
  color: #21363d;
  font-size: 17px;
}

.contact-list a:hover {
  color: var(--primary);
}

.qr-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.qr-box {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
}

.qr-box img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
}

.qr-box p {
  margin-top: 8px;
  color: #53646a;
  font-size: 13px;
  font-weight: 700;
}

.contact-form {
  scroll-margin-top: 100px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.field {
  display: grid;
  gap: 7px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  color: #33454c;
  font-size: 13px;
  font-weight: 800;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
  background: #f8fbfa;
  color: var(--ink);
}

.field textarea {
  min-height: 110px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 111, 108, 0.12);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
}

.form-note {
  color: var(--muted);
  font-size: 12px;
}

.form-success {
  display: none;
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid #a8d6cb;
  border-radius: 8px;
  background: #eefaf6;
  color: #11604f;
  font-size: 14px;
  font-weight: 700;
}

.form-success.visible {
  display: block;
}

.form-error {
  display: none;
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid #edb7b0;
  border-radius: 8px;
  background: #fff2f0;
  color: #a33c2d;
  font-size: 14px;
  font-weight: 700;
}

.form-error.visible {
  display: block;
}

.site-footer {
  padding: 64px 0 24px;
  background: #0a2c2e;
  color: #d7e8e5;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.45fr 0.8fr 0.8fr 1fr;
  gap: 38px;
}

.footer-brand img {
  width: 52px;
  height: 52px;
  padding: 4px;
  border-radius: 8px;
  background: #fff;
  object-fit: contain;
}

.footer-brand strong {
  display: block;
  margin-top: 12px;
  color: #fff;
  font-size: 18px;
}

.footer-brand p {
  max-width: 320px;
  margin-top: 10px;
  color: rgba(215, 232, 229, 0.72);
  font-size: 13px;
}

.footer-grid h4 {
  margin-bottom: 16px;
  color: #fff;
  font-size: 15px;
}

.footer-grid ul {
  display: grid;
  gap: 10px;
}

.footer-grid a {
  color: rgba(215, 232, 229, 0.76);
  font-size: 14px;
}

.footer-grid a:hover {
  color: #ffc08b;
}

.footer-contact {
  display: grid;
  gap: 10px;
  color: rgba(215, 232, 229, 0.82);
  font-size: 14px;
}

.footer-contact strong {
  display: block;
  color: #fff;
  font-size: 22px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(215, 232, 229, 0.62);
  font-size: 12px;
}

.footer-bottom a {
  margin-left: 16px;
}

@media (max-width: 1080px) {
  .module-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 960px) {
  .section {
    padding: 68px 0;
  }

  .site-header {
    backdrop-filter: none;
    background: #fff;
  }

  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    z-index: 120;
    width: min(360px, 88vw);
    min-height: 100vh;
    max-height: 100vh;
    overflow-y: auto;
    align-items: stretch;
    flex-direction: column;
    gap: 20px;
    padding: 92px 24px 28px;
    background: #fff;
    box-shadow: -24px 0 60px rgba(21, 34, 41, 0.16);
    transform: translateX(100%);
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.24s ease, visibility 0.24s ease;
  }

  .nav.open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
  }

  .nav-links {
    align-items: stretch;
    flex-direction: column;
    gap: 4px;
  }

  .nav-links a {
    min-height: 48px;
    border-bottom: 0;
  }

  .nav-links a::after {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .hero {
    min-height: 680px;
  }

  .hero-content {
    padding-top: 72px;
  }

  .hero-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .demo-body {
    grid-template-columns: 1fr;
  }

  .demo-side {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px;
  }

  .demo-side li {
    margin-bottom: 0;
  }

  .coop-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .module-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .value-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .qr-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 28px, 1180px);
  }

  .brand-name {
    font-size: 17px;
  }

  .brand-sub {
    font-size: 10px;
  }

  .hero {
    min-height: 620px;
  }

  .hero-title {
    font-size: 40px;
  }

  .hero-copy {
    font-size: 16px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .module-grid,
  .flow {
    grid-template-columns: 1fr;
  }

  .demo-grid {
    grid-template-columns: 1fr;
  }

  .coop-list {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    gap: 24px;
  }
}