<!-- 文件路径：assets/css/style.css -->
:root {
  --color-bg: #ffffff;
  --color-surface: #f5f5f7;
  --color-surface-2: #ebedf0;
  --color-text: #0a0a0a;
  --color-text-muted: #5f6670;
  --color-border: rgba(10, 10, 10, 0.08);
  --color-border-strong: rgba(10, 10, 10, 0.14);
  --color-accent: #34c759;
  --color-accent-dark: #22a844;
  --color-accent-soft: rgba(52, 199, 89, 0.12);
  --color-overlay: rgba(10, 10, 10, 0.52);

  --shadow-xs: 0 8px 24px rgba(10, 10, 10, 0.04);
  --shadow-sm: 0 12px 36px rgba(10, 10, 10, 0.06);
  --shadow-md: 0 20px 50px rgba(10, 10, 10, 0.08);
  --shadow-lg: 0 24px 60px rgba(10, 10, 10, 0.12);

  --font-family: Inter, "SF Pro Display", "SF Pro Text", "Helvetica Neue", Arial, sans-serif;

  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-2xl: 40px;
  --radius-pill: 999px;

  --container: 1200px;
  --container-wide: 1360px;
  --container-narrow: 880px;

  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1rem;
  --space-4: 1.25rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-9: 4rem;
  --space-10: 5rem;
  --space-11: 6rem;
  --space-12: 7rem;

  --header-height: 84px;
  --section-y: 100px;
  --section-y-sm: 72px;
  --transition: 220ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  overflow-x: hidden;
}

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
figure,
blockquote {
  margin: 0;
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
  color: transparent;
}

picture {
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition:
    color var(--transition),
    border-color var(--transition),
    background-color var(--transition),
    opacity var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
  border: 0;
  background: none;
}

ul,
ol {
  padding-left: 1.25rem;
}

main {
  min-height: 60vh;
  display: block;
}

section {
  position: relative;
}

iframe {
  border: 0;
  width: 100%;
}

.container,
.container-wide,
.container-narrow {
  width: 100%;
  margin: 0 auto;
  padding-left: 40px;
  padding-right: 40px;
}

.container {
  max-width: var(--container);
}

.container-wide {
  max-width: var(--container-wide);
}

.container-narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: var(--section-y) 0;
}

.section-tight {
  padding: 72px 0;
}

.section-soft {
  background: #f7f8fa;
}

.section-ink {
  background: #0d0d0f;
  color: #ffffff;
}

.section > .container,
.section > .container-wide,
.section > .container-narrow {
  padding-top: 8px;
}

main section + section {
  border-top: 1px solid rgba(10, 10, 10, 0.03);
}

.stack-xs > * + * {
  margin-top: var(--space-2);
}

.stack-sm > * + * {
  margin-top: var(--space-3);
}

.stack-md > * + * {
  margin-top: var(--space-4);
}

.stack-lg > * + * {
  margin-top: var(--space-6);
}

.stack-xl > * + * {
  margin-top: var(--space-8);
}

.grid {
  display: grid;
  gap: 28px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: 56px;
  align-items: center;
}

.split-reverse {
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.centered {
  text-align: center;
}

.hero-copy,
.section-heading,
.split > div,
.app-showcase > div {
  min-width: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
}

.eyebrow::before {
  content: "";
  width: 30px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 48px;
}

.section-heading.centered {
  margin-left: auto;
  margin-right: auto;
}

.section-heading h1,
.section-heading h2 {
  max-width: 900px;
}

.section-heading .lead {
  max-width: 760px;
}

h1,
.h1 {
  font-size: clamp(2.9rem, 5.8vw, 4.5rem);
  line-height: 1.03;
  letter-spacing: -0.045em;
  font-weight: 700;
  margin-bottom: 18px;
}

h2,
.h2 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.1;
  letter-spacing: -0.035em;
  font-weight: 600;
  margin-bottom: 14px;
}

h3,
.h3 {
  font-size: clamp(1.3rem, 2vw, 1.7rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-weight: 600;
  margin-bottom: 10px;
}

h4,
.h4 {
  font-size: 1.1rem;
  line-height: 1.3;
  font-weight: 600;
}

p,
li {
  color: var(--color-text-muted);
  font-size: 1rem;
}

p {
  line-height: 1.75;
}

.lead {
  font-size: clamp(1.05rem, 1.8vw, 1.18rem);
  line-height: 1.8;
  max-width: 760px;
}

small,
.caption {
  font-size: 0.84rem;
  color: var(--color-text-muted);
}

strong {
  color: var(--color-text);
}

.kicker {
  display: inline-block;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0.85rem 1.3rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1;
  border: 1px solid transparent;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    background-color var(--transition),
    color var(--transition),
    border-color var(--transition);
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-text);
  color: #ffffff;
  box-shadow: var(--shadow-xs);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #1a1a1a;
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--color-surface);
  border-color: rgba(10, 10, 10, 0.24);
}

.btn-accent {
  background: var(--color-accent);
  color: #ffffff;
  box-shadow: var(--shadow-xs);
}

.btn-accent:hover,
.btn-accent:focus-visible {
  background: var(--color-accent-dark);
  box-shadow: var(--shadow-sm);
}

.btn-light {
  background: #ffffff;
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.18);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--color-text);
}

.link-arrow::after {
  content: "→";
  transition: transform var(--transition);
}

.link-arrow:hover::after {
  transform: translateX(3px);
}

.card,
.card-dark,
.card-light {
  border-radius: 24px;
  padding: 32px;
  position: relative;
  overflow: hidden;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition);
}

.card:hover,
.card-dark:hover,
.card-light:hover {
  transform: translateY(-4px);
}

.card {
  background: #ffffff;
  color: var(--color-text);
  border: 1px solid rgba(10, 10, 10, 0.06);
  box-shadow: var(--shadow-sm);
}

.card-dark {
  background: #111214;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.22);
}

.card-dark p,
.card-dark li,
.card-dark .caption {
  color: rgba(255, 255, 255, 0.76);
}

.card-light {
  background: #ffffff;
  color: var(--color-text);
  border: 1px solid rgba(10, 10, 10, 0.06);
  box-shadow: none;
}

.card-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.metric {
  padding: 28px;
  border-radius: 20px;
  background: #ffffff;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
}

.metric strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: 0.35rem;
}

.icon-chip {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--color-surface);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  font-size: 1.2rem;
  margin-bottom: var(--space-4);
}

.surface-panel {
  background: linear-gradient(180deg, #ffffff 0%, #f7f7f9 100%);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  box-shadow: var(--shadow-xs);
}

.hero {
  position: relative;
  min-height: calc(100vh - 24px);
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #ffffff;
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 10, 10, 0.72) 0%, rgba(10, 10, 10, 0.48) 42%, rgba(10, 10, 10, 0.32) 100%);
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: calc(var(--header-height) + 40px) 0 var(--space-10);
}

.hero-copy {
  max-width: 640px;
}

.hero-copy p,
.hero-copy .lead {
  color: rgba(255, 255, 255, 0.84);
}

.page-hero {
  padding: 140px 0 80px;
  background:
    radial-gradient(circle at top right, rgba(52, 199, 89, 0.11), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #f6f7f9 100%);
}

.page-hero-compact {
  padding: calc(var(--header-height) + var(--space-7)) 0 var(--space-6);
}

.page-hero .section-heading {
  margin-bottom: 0;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.breadcrumb span:last-child {
  color: var(--color-text);
  font-weight: 600;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin-top: 8px;
}

.product-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.product-grid .card,
.feature-band .card,
.review-grid .card {
  height: 100%;
}

.product-card .image-frame {
  margin-bottom: var(--space-5);
  min-height: 320px;
  background: #f1f3f6;
}

.product-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: var(--space-2);
}

.product-price {
  font-size: 1.5rem;
  line-height: 1;
  font-weight: 700;
  color: var(--color-text);
}

.product-specs {
  list-style: none;
  padding-left: 0;
  margin-top: var(--space-4);
}

.product-specs li {
  padding: 14px 0;
  border-top: 1px solid var(--color-border);
}

.product-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-6);
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-chip {
  padding: 0.7rem 1rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-strong);
  background: #ffffff;
  color: var(--color-text);
  font-weight: 600;
}

.filter-chip.active,
.filter-chip:hover {
  background: var(--color-text);
  color: #ffffff;
  border-color: var(--color-text);
}

.compare-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: #ffffff;
  box-shadow: var(--shadow-xs);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

th,
td {
  padding: 1rem 1.1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

th {
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 700;
  background: #fafafb;
}

td {
  color: var(--color-text-muted);
}

.table-highlight {
  color: var(--color-text);
  font-weight: 600;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.spec-list {
  list-style: none;
  padding-left: 0;
}

.spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.spec-list strong {
  white-space: nowrap;
}

.feature-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  margin-top: 12px;
}

.feature-tile {
  min-height: 100%;
}

.timeline {
  position: relative;
  display: grid;
  gap: var(--space-5);
}

.timeline::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--color-border-strong);
}

.timeline-item {
  position: relative;
  padding-left: 54px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 6px rgba(52, 199, 89, 0.15);
}

.app-showcase {
  display: grid;
  grid-template-columns: minmax(280px, 380px) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}

.app-showcase > * {
  min-width: 0;
}

.device-frame {
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
  padding: 12px;
  border-radius: 36px;
  background: linear-gradient(180deg, #111214 0%, #2d3136 100%);
  box-shadow: 0 30px 70px rgba(10, 10, 10, 0.18);
}

.device-frame img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 19;
  min-height: 580px;
  border-radius: 24px;
  object-fit: cover;
  object-position: center;
  background: #dfe4ea;
  color: transparent;
  font-size: 0;
}

.data-viz {
  display: grid;
  gap: var(--space-4);
}

.chart-card {
  border-radius: 24px;
  background: #ffffff;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
  padding: 28px;
}

.chart-placeholder {
  position: relative;
  height: 220px;
  margin-top: 18px;
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(52, 199, 89, 0.12), rgba(52, 199, 89, 0.04)),
    repeating-linear-gradient(
      to right,
      rgba(10, 10, 10, 0.04),
      rgba(10, 10, 10, 0.04) 1px,
      transparent 1px,
      transparent 72px
    ),
    repeating-linear-gradient(
      to bottom,
      rgba(10, 10, 10, 0.04),
      rgba(10, 10, 10, 0.04) 1px,
      transparent 1px,
      transparent 56px
    );
  overflow: hidden;
}

.chart-placeholder::before,
.chart-placeholder::after {
  content: "";
  position: absolute;
  left: 5%;
  right: 5%;
  border-radius: var(--radius-pill);
}

.chart-placeholder::before {
  height: 2px;
  bottom: 28%;
  background: linear-gradient(90deg, transparent 0%, #34c759 8%, #34c759 18%, #9adcae 32%, #34c759 47%, #34c759 65%, #86d69a 78%, transparent 100%);
  transform: scaleY(1.4);
}

.chart-placeholder::after {
  height: 96px;
  bottom: 14%;
  background: linear-gradient(180deg, rgba(52, 199, 89, 0.32), rgba(52, 199, 89, 0));
  clip-path: polygon(0 82%, 10% 70%, 22% 78%, 34% 44%, 48% 58%, 60% 24%, 73% 42%, 84% 18%, 100% 32%, 100% 100%, 0 100%);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.review-quote {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text);
}

.rating {
  letter-spacing: 0.18em;
  color: var(--color-accent-dark);
  font-size: 0.92rem;
}

.faq-list {
  display: grid;
  gap: var(--space-3);
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: 18px;
  background: #ffffff;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.2rem 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.faq-question::after {
  content: "+";
  font-size: 1.25rem;
  line-height: 1;
  color: var(--color-text-muted);
}

.faq-item.active .faq-question::after {
  content: "–";
  color: var(--color-accent-dark);
}

.faq-answer {
  display: none;
  padding: 0 1.25rem 1.2rem;
}

.faq-item.active .faq-answer {
  display: block;
}

.form-panel {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow-xs);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.form-group {
  display: grid;
  gap: 0.6rem;
}

.form-group.full {
  grid-column: 1 / -1;
}

label {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--color-border-strong);
  border-radius: 12px;
  background: #ffffff;
  color: var(--color-text);
  padding: 0.95rem 1rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: rgba(52, 199, 89, 0.9);
  box-shadow: 0 0 0 4px rgba(52, 199, 89, 0.12);
}

textarea {
  resize: vertical;
  min-height: 150px;
}

.contact-list,
.download-list,
.policy-list {
  list-style: none;
  padding-left: 0;
}

.contact-list li,
.download-list li,
.policy-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.notice {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  color: var(--color-text);
  border: 1px solid rgba(52, 199, 89, 0.18);
}

.map-card {
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
}

.image-frame {
  position: relative;
  overflow: hidden;
  border-radius: 24px;
  background: #eef1f4;
  min-height: 280px;
}

.image-frame img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  object-position: center;
  transition: transform 700ms ease;
  background: #dde2e8;
  color: transparent;
  font-size: 0;
}

.image-frame:hover img {
  transform: scale(1.03);
}

.image-frame.tall {
  min-height: 520px;
}

.image-frame.square {
  aspect-ratio: 1 / 1;
  min-height: auto;
}

.image-frame.wide {
  aspect-ratio: 16 / 9;
  min-height: auto;
}

.logo-wall {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-4);
  align-items: center;
}

.logo-chip {
  padding: 1rem;
  border-radius: var(--radius-md);
  background: #ffffff;
  border: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
  font-weight: 600;
}

.cta-banner {
  position: relative;
  overflow: hidden;
  margin: 40px 0;
  border-radius: 28px;
  padding: 60px;
  background: linear-gradient(135deg, #0f1012 0%, #1b1c20 50%, #131417 100%);
  color: #ffffff;
  box-shadow: 0 24px 60px rgba(10, 10, 10, 0.2);
}

.cta-banner::after {
  content: "";
  position: absolute;
  inset: auto -120px -120px auto;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(52, 199, 89, 0.18);
  filter: blur(10px);
}

.cta-banner p,
.cta-banner .lead {
  color: rgba(255, 255, 255, 0.8);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
  padding-left: 0;
  list-style: none;
}

.tag-list li {
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background: #f5f5f7;
  color: var(--color-text);
  font-size: 0.88rem;
  border: 1px solid rgba(10, 10, 10, 0.06);
}

.blog-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 56px;
  align-items: start;
}

.blog-card .image-frame {
  min-height: 300px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.download-card {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  align-items: center;
}

.empty-link {
  pointer-events: none;
  opacity: 0.5;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(16px);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(10, 10, 10, 0.05);
}

.site-header.is-scrolled {
  box-shadow: 0 10px 30px rgba(10, 10, 10, 0.06);
}

.header-shell {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
  min-width: 0;
}

.brand img {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.brand-text {
  display: grid;
  gap: 2px;
}

.brand-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.brand-subtitle {
  font-size: 0.76rem;
  color: var(--color-text-muted);
  line-height: 1.2;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  padding-left: 0;
}

.nav-item {
  position: relative;
}

.nav-link,
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 12px 16px;
  border-radius: 10px;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 600;
}

.nav-link:hover,
.nav-toggle:hover,
.nav-link.active,
.nav-item.active > .nav-link,
.nav-item.active > .nav-toggle {
  background: var(--color-surface);
  color: var(--color-text);
}

.has-dropdown > .nav-toggle::after {
  content: "▾";
  font-size: 0.72rem;
  opacity: 0.75;
}

.dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 220px;
  padding: 10px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  list-style: none;
  display: none;
  z-index: 50;
}

.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown,
.has-dropdown.open .dropdown {
  display: block;
}

.dropdown a {
  display: block;
  padding: 0.8rem 0.95rem;
  border-radius: 10px;
  color: var(--color-text);
  font-weight: 600;
}

.dropdown a:hover,
.dropdown a.active {
  background: var(--color-surface);
}

.mobile-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--color-surface);
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  flex-shrink: 0;
}

.mobile-toggle span,
.mobile-toggle span::before,
.mobile-toggle span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  position: relative;
  border-radius: 2px;
}

.mobile-toggle span::before,
.mobile-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
}

.mobile-toggle span::before {
  top: -6px;
}

.mobile-toggle span::after {
  top: 6px;
}

.header-cta {
  flex-shrink: 0;
}

.site-footer {
  color: #ffffff;
  padding-top: 120px;
  padding-bottom: 60px;
  margin: 60px 40px 0;
  border-radius: 24px;
  background: #0b0c0f;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr 1fr 1.1fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
  max-width: 320px;
}

.footer-brand .brand {
  margin-bottom: var(--space-4);
}

.footer-brand p {
  margin-top: 12px;
  line-height: 1.8;
}

.footer-brand p,
.footer-bottom p,
.site-footer li,
.site-footer a {
  color: rgba(255, 255, 255, 0.74);
}

.footer-title {
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: var(--space-4);
}

.footer-links,
.footer-contact {
  list-style: none;
  padding-left: 0;
}

.footer-links li,
.footer-contact li {
  margin-bottom: 12px;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 28px 0 0;
  margin-top: 20px;
}

.active {
  color: var(--color-text);
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

@media (min-width: 1400px) {
  .container,
  .container-wide,
  .container-narrow {
    padding-left: 60px;
    padding-right: 60px;
  }

  .site-footer {
    margin: 80px 80px 0;
  }
}

@media (max-width: 1200px) {
  .product-grid,
  .review-grid,
  .feature-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-top {
    grid-template-columns: 1.2fr 1fr 1fr;
    gap: 40px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 1024px) {
  :root {
    --header-height: 78px;
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3,
  .split,
  .split-reverse,
  .app-showcase,
  .blog-grid,
  .spec-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 80px 0;
  }

  .split,
  .split-reverse,
  .app-showcase,
  .blog-grid {
    gap: 36px;
  }

  .hero {
    min-height: 82vh;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 24px;
    right: 24px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding: 18px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .site-nav.open {
    display: flex;
  }

  .nav-list {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .nav-item,
  .nav-link,
  .nav-toggle {
    width: 100%;
  }

  .nav-link,
  .nav-toggle {
    justify-content: space-between;
    min-height: 48px;
  }

  .dropdown {
    position: static;
    display: none;
    box-shadow: none;
    border: 0;
    background: var(--color-surface);
    padding: 8px;
    margin-top: 4px;
  }

  .has-dropdown.open .dropdown {
    display: block;
  }

  .mobile-toggle {
    display: inline-flex;
  }

  .header-cta {
    display: none;
  }

  .device-frame {
    max-width: 320px;
  }

  .device-frame img {
    min-height: 520px;
  }

  .image-frame.tall {
    min-height: 420px;
  }

  .cta-banner {
    padding: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-y: 64px;
  }

  .container,
  .container-wide,
  .container-narrow {
    padding-left: 20px;
    padding-right: 20px;
  }

  .section-tight {
    padding: 56px 0;
  }

  .card,
  .card-light,
  .card-dark,
  .surface-panel,
  .chart-card,
  .form-panel {
    padding: 24px;
  }

  .product-grid,
  .review-grid,
  .feature-band,
  .grid-2,
  .grid-4,
  .logo-wall,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    padding-left: 44px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .download-card {
    flex-direction: column;
    align-items: flex-start;
  }

  th,
  td {
    padding: 0.9rem 0.85rem;
  }

  .hero-content {
    padding-bottom: var(--space-8);
  }

  .section-heading {
    margin-bottom: 32px;
  }

  .image-frame.tall {
    min-height: 360px;
  }

  .device-frame {
    max-width: 300px;
  }

  .device-frame img {
    min-height: 500px;
  }

  .site-footer {
    margin: 40px 16px 0;
    padding-top: 80px;
    padding-bottom: 36px;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }

  .btn,
  .nav-link,
  .nav-toggle {
    font-size: 0.94rem;
  }

  .hero {
    min-height: 76vh;
  }

  .hero-media::after {
    background: linear-gradient(180deg, rgba(10, 10, 10, 0.56) 0%, rgba(10, 10, 10, 0.68) 100%);
  }

  .btn-group {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-group .btn {
    width: 100%;
  }

  .image-frame {
    min-height: 220px;
  }

  .page-hero,
  .page-hero-compact {
    padding-top: calc(var(--header-height) + var(--space-6));
  }

  .device-frame {
    max-width: 280px;
    padding: 10px;
    border-radius: 30px;
  }

  .device-frame img {
    min-height: 460px;
    border-radius: 20px;
  }

  .cta-banner {
    padding: 32px 24px;
  }
}