:root {
  color-scheme: light;
  --bg: #f7f9ff;
  --bg-2: #f1f5fb;
  --panel: #ffffff;
  --panel-2: #f8faff;
  --panel-3: #eef4ff;
  --text: #101828;
  --muted: #586477;
  --muted-2: #8a95a8;
  --accent: #2f6bff;
  --accent-strong: #184fd8;
  --accent-hot: #4d86ff;
  --accent-cyan: #55c7ff;
  --accent-warm: #ffb547;
  --accent-soft: #dce9ff;
  --accent-rgb: 47, 107, 255;
  --line: rgba(47, 107, 255, 0.2);
  --line-strong: rgba(47, 107, 255, 0.42);
  --line-neutral: rgba(15, 23, 42, 0.1);
  --nav-bg: rgba(255, 255, 255, 0.9);
  --card-bg: #ffffff;
  --shadow: 0 24px 70px rgba(23, 37, 84, 0.12);
  --font-display: "Bahnschrift", "Arial Narrow", "Microsoft YaHei", "PingFang SC", sans-serif;
  --font-body: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Segoe UI", sans-serif;
  --font-mono: "Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
  overflow-x: hidden;
  overflow-x: clip;
  -webkit-text-size-adjust: 100%;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  overflow-x: clip;
  background:
    radial-gradient(circle at 86% 2%, rgba(var(--accent-rgb), 0.075), transparent 25rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.nav-open,
body.modal-open {
  overflow: hidden;
}

img,
svg {
  display: block;
}

img {
  max-width: 100%;
}

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

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

button {
  -webkit-tap-highlight-color: transparent;
}

p,
h1,
h2,
h3,
ul,
figure,
blockquote {
  margin-top: 0;
}

p:last-child {
  margin-bottom: 0;
}

::selection {
  background: var(--accent);
  color: #ffffff;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 500;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  font-size: 13px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
}

.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
}

.site-nav-bar {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--nav-bg);
  border-bottom: 1px solid rgba(224, 231, 242, 0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 74px;
  gap: 24px;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.logo-plate {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  overflow: hidden;
  border: 1px solid rgba(16, 24, 40, 0.08);
  border-radius: 10px;
  background: #03060d;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.12);
}

.logo-mark {
  width: 43px;
  height: 43px;
  object-fit: cover;
  image-rendering: pixelated;
}

.logo-copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1;
}

.logo-copy strong {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.035em;
}

.logo-copy small {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.site-nav-inner {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav-inner > a {
  position: relative;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  transition: color 0.2s ease;
}

.site-nav-inner > a::after {
  content: "";
  position: absolute;
  right: 100%;
  bottom: -9px;
  left: 0;
  height: 2px;
  background: var(--accent);
  transition: right 0.22s ease;
}

.site-nav-inner > a:hover {
  color: var(--text);
}

.site-nav-inner > a:hover::after {
  right: 0;
}

.site-nav-inner > a.btn {
  color: #ffffff;
}

.site-nav-inner > a.btn::after {
  display: none;
}

.site-nav-inner > a.btn:hover {
  color: #ffffff;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid #e1e7f1;
  border-radius: 9px;
  background: #ffffff;
  color: var(--text);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  margin: 4px 0;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.24s ease, opacity 0.24s ease;
}

.nav-backdrop {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 9px 18px;
  border: 1px solid transparent;
  border-radius: 9px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, color 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary,
.btn-dark {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(var(--accent-rgb), 0.2);
}

.btn-primary:hover,
.btn-dark:hover {
  background: var(--accent-strong);
  color: #ffffff;
  box-shadow: 0 13px 30px rgba(var(--accent-rgb), 0.28);
}

.btn-ghost {
  border-color: #dfe6f0;
  background: #ffffff;
  color: var(--text);
}

.btn-ghost:hover {
  border-color: #bcd0fa;
  color: var(--accent);
}

.btn-lg {
  min-height: 52px;
  padding: 13px 24px;
  font-size: 14px;
}

.nav-download {
  min-width: 122px;
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(56px, 6.5vw, 86px) 0 58px;
  background:
    radial-gradient(circle at 82% 12%, rgba(var(--accent-rgb), 0.105), transparent 32%),
    radial-gradient(circle at 12% 88%, rgba(85, 199, 255, 0.075), transparent 26%),
    linear-gradient(180deg, #ffffff 0%, #f8faff 64%, #f5f8ff 100%);
}

.hero::before {
  content: "";
  position: absolute;
  right: -90px;
  top: 18%;
  z-index: -1;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(var(--accent-rgb), 0.09);
  border-radius: 50%;
  box-shadow: 0 0 0 54px rgba(var(--accent-rgb), 0.022), 0 0 0 108px rgba(var(--accent-rgb), 0.012);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  align-items: center;
  gap: clamp(36px, 5vw, 68px);
}

.hero-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
}

.eyebrow,
.section-kicker,
.cta-kicker,
.modal-kicker {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 16px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  line-height: 1.4;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.1);
  animation: status-pulse 2.1s ease-out infinite;
}

@keyframes status-pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.1); }
  50% { box-shadow: 0 0 0 8px rgba(var(--accent-rgb), 0); }
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 23px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  min-height: 29px;
  padding: 4px 10px;
  border: 1px solid #e1e8f3;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  box-shadow: 0 3px 10px rgba(23, 37, 84, 0.025);
}

.hero-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.hero h1 {
  max-width: 720px;
  margin-bottom: 22px;
  font-family: var(--font-display);
  font-size: clamp(3rem, 5.4vw, 4.65rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 1.03;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-subtitle {
  max-width: 600px;
  margin-bottom: 29px;
  color: var(--muted);
  font-size: clamp(14px, 1.45vw, 16.5px);
  line-height: 1.82;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-bottom: 30px;
}

.hero-specs {
  display: flex;
  flex-wrap: wrap;
  padding-top: 20px;
  border-top: 1px solid #e4eaf3;
}

.hero-specs span {
  display: flex;
  flex-direction: column;
  min-width: 145px;
  padding: 0 22px;
  border-left: 1px solid #e4eaf3;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-specs span:first-child {
  padding-left: 0;
  border-left: 0;
}

.hero-specs strong {
  margin-bottom: 4px;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.hero-media {
  position: relative;
  z-index: 2;
  width: 100%;
  min-width: 0;
  max-width: 650px;
  justify-self: end;
}

.monitor {
  position: relative;
  padding: 9px;
  border: 1px solid #dfe7f2;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 24px 70px rgba(23, 37, 84, 0.14);
}

.carousel {
  position: relative;
}

.carousel-viewport {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 12px;
  background: #03060e;
}

.carousel-slide {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  transform: scale(1.01);
  transition: opacity 0.55s ease, transform 0.8s ease;
  pointer-events: none;
}

.carousel-slide.is-active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}

.slide-stage {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 22%, rgba(var(--accent-rgb), 0.3), transparent 40%),
    #03060e;
}

.slide-bg {
  position: absolute;
  inset: -14%;
  width: 128%;
  height: 128%;
  max-width: none;
  object-fit: cover;
  filter: blur(24px) saturate(1.2) brightness(0.45);
  opacity: 0.78;
  transform: scale(1.04);
}

.slide-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(3, 6, 14, 0.34), transparent 25%, transparent 75%, rgba(3, 6, 14, 0.34)),
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.025) 0 1px, transparent 1px 4px);
  pointer-events: none;
}

.phone-mockup {
  position: absolute;
  left: 50%;
  top: 52%;
  z-index: 2;
  height: 89%;
  aspect-ratio: 9 / 16;
  overflow: hidden;
  border: 2px solid rgba(131, 171, 255, 0.48);
  border-radius: 18px;
  background: #000000;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.5), 0 0 30px rgba(var(--accent-rgb), 0.28);
  transform: translate(-50%, -50%);
}

.phone-mockup img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
}

.preview-chip {
  position: absolute;
  top: 14px;
  left: 15px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 7px;
  border: 1px solid rgba(175, 203, 255, 0.28);
  border-radius: 4px;
  background: rgba(3, 8, 21, 0.58);
  color: rgba(233, 241, 255, 0.84);
  font-family: var(--font-mono);
  font-size: 7px;
  font-weight: 700;
  letter-spacing: 0.14em;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.preview-chip::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
}

.carousel-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 48%, rgba(3, 6, 14, 0.84) 100%);
  pointer-events: none;
}

.carousel-slide figcaption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 15px;
  z-index: 4;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  color: #f5f8ff;
}

.carousel-slide figcaption > span {
  color: #9dc0ff;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.carousel-slide figcaption div {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.2;
}

.carousel-slide figcaption strong {
  font-family: var(--font-display);
  font-size: clamp(15px, 1.7vw, 20px);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.carousel-slide figcaption small {
  color: rgba(239, 244, 255, 0.66);
  font-size: 8.5px;
  letter-spacing: 0.05em;
}

.carousel-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  padding: 12px 4px 3px;
}

.carousel-dots {
  display: flex;
  align-items: center;
  gap: 6px;
}

.carousel-dot {
  width: 19px;
  height: 4px;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: #d9e1ec;
  cursor: pointer;
  transition: width 0.22s ease, background 0.22s ease;
}

.carousel-dot.is-active {
  width: 34px;
  background: var(--accent);
}

.carousel-nav {
  display: flex;
  align-items: center;
  gap: 5px;
}

.slide-location {
  max-width: 205px;
  margin-right: 7px;
  overflow: hidden;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.09em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.carousel-arrow {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 28px;
  padding: 0;
  border: 1px solid #e1e8f2;
  border-radius: 8px;
  background: #ffffff;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.carousel-arrow:hover {
  border-color: #bcd0fa;
  background: #f5f8ff;
  color: var(--accent);
}

.carousel-arrow .icon {
  width: 13px;
  height: 13px;
}

.media-corner {
  position: absolute;
  width: 30px;
  height: 30px;
  pointer-events: none;
}

.media-corner-tl {
  left: -11px;
  top: -11px;
  border-left: 2px solid var(--accent);
  border-top: 2px solid var(--accent);
}

.media-corner-br {
  right: -11px;
  bottom: -11px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
}

.section-header {
  max-width: 760px;
  margin: 0 auto 44px;
  text-align: center;
}

.section-header .section-kicker {
  justify-content: center;
  margin-bottom: 13px;
}

.section-header h2 {
  margin-bottom: 12px;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.4vw, 3.55rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.section-header > p:last-child {
  color: var(--muted);
  font-size: 14px;
}

.features {
  padding: clamp(72px, 8.5vw, 104px) 0;
  background: linear-gradient(180deg, #f7f9ff 0%, #ffffff 56%, #f8faff 100%);
}

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

.feature-card {
  position: relative;
  min-height: 292px;
  padding: 29px 27px 27px;
  overflow: hidden;
  border: 1px solid #e4eaf3;
  border-radius: 13px;
  background: var(--card-bg);
  box-shadow: 0 8px 28px rgba(23, 37, 84, 0.035);
  transition: transform 0.24s ease, border-color 0.24s ease, box-shadow 0.24s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: #c4d5fa;
  box-shadow: 0 22px 54px rgba(23, 37, 84, 0.09);
}

.feature-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 40%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-cyan));
  transition: width 0.28s ease;
}

.feature-card:hover::before {
  width: 100%;
}

.card-index {
  position: absolute;
  top: 20px;
  right: 22px;
  color: #b1bbc9;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 53px;
  height: 53px;
  margin-bottom: 27px;
  border: 1px solid #d9e6ff;
  border-radius: 12px;
  background: #eef4ff;
  color: var(--accent);
}

.feature-icon .icon {
  width: 26px;
  height: 26px;
}

.feature-card h3 {
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.82;
}

.card-corner {
  position: absolute;
  right: 13px;
  bottom: 13px;
  width: 16px;
  height: 16px;
  border-right: 1px solid #dbe4f2;
  border-bottom: 1px solid #dbe4f2;
}

.feature-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 27px auto 0;
  color: var(--muted-2);
  font-size: 11px;
  text-align: center;
}

.feature-note span {
  padding: 3px 7px;
  border: 1px solid #d8e5ff;
  border-radius: 4px;
  background: #f1f6ff;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.modes {
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 8vw, 94px) 0;
  border-top: 1px solid #e6ecf5;
  border-bottom: 1px solid #e6ecf5;
  background:
    radial-gradient(circle at 88% 38%, rgba(var(--accent-rgb), 0.055), transparent 28%),
    #ffffff;
}

.modes-inner {
  display: grid;
  grid-template-columns: 0.68fr 1.32fr;
  align-items: center;
  gap: clamp(34px, 5vw, 70px);
}

.modes-copy,
.modes-visual {
  min-width: 0;
}

.modes-copy h2 {
  margin-bottom: 19px;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 4.5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.04;
}

.modes-copy > p:not(.section-kicker) {
  max-width: 470px;
  margin-bottom: 25px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.modes-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid #e4eaf3;
  list-style: none;
}

.modes-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid #e4eaf3;
  color: #384456;
  font-size: 12px;
  line-height: 1.5;
}

.modes-list li:nth-child(odd) {
  padding-right: 16px;
  border-right: 1px solid #e4eaf3;
}

.modes-list li:nth-child(even) {
  padding-left: 16px;
}

.modes-list span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.modes-visual {
  position: relative;
  min-height: 600px;
  overflow: hidden;
  border: 1px solid rgba(96, 137, 215, 0.34);
  border-radius: 18px;
  background:
    radial-gradient(circle at 65% 18%, rgba(var(--accent-rgb), 0.44), transparent 37%),
    linear-gradient(145deg, #0b1430 0%, #050a16 60%, #081126 100%);
  box-shadow: 0 26px 75px rgba(18, 36, 80, 0.18);
}

.modes-grid {
  position: absolute;
  inset: 0;
  opacity: 0.5;
  background-image:
    linear-gradient(rgba(126, 170, 255, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 170, 255, 0.09) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: radial-gradient(circle at 68% 42%, black, transparent 72%);
}

.device-stack {
  position: absolute;
  inset: 0 0 0 15%;
}

.device {
  position: absolute;
  width: auto;
  overflow: hidden;
  border: 1px solid rgba(126, 170, 255, 0.55);
  border-radius: 17px;
  background: #000000;
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.52);
  aspect-ratio: 9 / 20;
}

.device img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: top center;
}

.device-back {
  left: 1%;
  top: 17%;
  height: 75%;
  opacity: 0.9;
  transform: none;
}

.device-front {
  right: 2%;
  top: 6%;
  height: 92%;
  transform: none;
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.62), 0 0 34px rgba(var(--accent-rgb), 0.3);
}

.modes-overlay {
  position: absolute;
  left: 27px;
  bottom: 24px;
  z-index: 4;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.7);
}

.modes-overlay span {
  color: #8bb8ff;
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.modes-overlay strong {
  color: #f5f8ff;
  font-family: var(--font-display);
  font-size: clamp(27px, 3.5vw, 45px);
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 0.9;
}

.faq {
  padding: clamp(72px, 8.5vw, 102px) 0;
  background: #f3f6fb;
}

.faq-container {
  max-width: 880px;
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq-item {
  border: 1px solid #e4eaf3;
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 2px 8px rgba(23, 37, 84, 0.02);
  transition: border-color 0.22s ease, box-shadow 0.22s ease;
}

.faq-item:hover,
.faq-item[open] {
  border-color: #c9d8ff;
  box-shadow: 0 10px 28px rgba(23, 37, 84, 0.06);
}

.faq-item summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 62px;
  padding: 16px 54px 16px 22px;
  color: var(--text);
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.5;
  cursor: pointer;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 21px;
  top: 50%;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 300;
  line-height: 1;
  transform: translateY(-50%);
  transition: transform 0.22s ease;
}

.faq-item[open] summary::after {
  transform: translateY(-50%) rotate(45deg);
}

.faq-item p {
  margin: 0;
  padding: 0 54px 20px 22px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.85;
}

.cta-banner {
  position: relative;
  overflow: hidden;
  padding: clamp(52px, 7vw, 80px) 0;
  border-top: 1px solid #dfe8f7;
  border-bottom: 1px solid #dfe8f7;
  background:
    radial-gradient(circle at 82% 20%, rgba(85, 199, 255, 0.2), transparent 25%),
    linear-gradient(115deg, #eff5ff 0%, #e6efff 55%, #edf4ff 100%);
}

.cta-stripes {
  position: absolute;
  inset: 0;
  opacity: 0.24;
  background: repeating-linear-gradient(115deg, transparent 0 38px, rgba(var(--accent-rgb), 0.1) 38px 39px);
  pointer-events: none;
}

.cta-banner::after {
  content: "HST";
  position: absolute;
  right: -0.08em;
  top: 50%;
  color: transparent;
  font-family: var(--font-display);
  font-size: clamp(170px, 24vw, 380px);
  font-weight: 800;
  line-height: 0.7;
  pointer-events: none;
  -webkit-text-stroke: 2px rgba(var(--accent-rgb), 0.08);
  transform: translateY(-50%);
}

.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
}

.cta-kicker {
  margin-bottom: 10px;
}

.cta-copy h2 {
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.cta-heading-line {
  white-space: nowrap;
}

.cta-copy > p:last-child {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.cta-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.site-footer {
  padding: 34px 0 37px;
  border-top: 1px solid #e6ecf4;
  background: #ffffff;
  color: #7b8594;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 23px;
  font-size: 12px;
}

.footer-nav a {
  color: #4d596b;
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--accent);
}

.footer-copy {
  color: #99a3b1;
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.1em;
}

.footer-disclaimer {
  max-width: 760px;
  color: #a0a9b6;
  font-size: 10px;
  line-height: 1.7;
}

.download-modal {
  width: min(620px, calc(100% - 24px));
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 0;
  overflow: visible;
  border: 0;
  background: transparent;
  color: var(--text);
}

.download-modal::backdrop {
  background: rgba(15, 23, 42, 0.42);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.download-modal[open] {
  animation: modal-in 0.24s ease both;
}

@keyframes modal-in {
  from { opacity: 0; transform: translateY(12px) scale(0.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.download-modal-panel {
  position: relative;
  max-height: calc(100dvh - 32px);
  padding: clamp(28px, 5vw, 42px);
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid #dfe7f2;
  border-radius: 20px;
  background:
    radial-gradient(circle at 100% 0, rgba(var(--accent-rgb), 0.09), transparent 37%),
    #ffffff;
  box-shadow: 0 30px 90px rgba(23, 37, 84, 0.2);
}

.download-modal-close {
  position: absolute;
  right: 17px;
  top: 17px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0 0 2px;
  border: 1px solid #e5ebf3;
  border-radius: 8px;
  background: #f8faff;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.download-modal-close:hover {
  border-color: #bfd0f6;
  color: var(--accent);
}

.modal-kicker {
  margin-bottom: 12px;
}

.download-modal h2 {
  margin-bottom: 6px;
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 5vw, 2.7rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
}

.download-modal-subtitle {
  margin-bottom: 24px;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.download-buttons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 18px;
}

.store-card {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 88px;
  padding: 15px;
  border: 1px solid #e6ebf3;
  border-radius: 12px;
  background: #f8faff;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.store-card:hover {
  transform: translateY(-3px);
  border-color: #bcd0ff;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(var(--accent-rgb), 0.1);
}

.store-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  border: 1px solid #dbe7ff;
  border-radius: 10px;
  background: #eef4ff;
  color: var(--accent);
}

.store-icon .icon {
  width: 25px;
  height: 25px;
}

.store-copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.store-copy strong {
  color: var(--text);
  font-size: 13px;
  line-height: 1.3;
}

.store-copy small {
  color: var(--muted-2);
  font-size: 9px;
  line-height: 1.45;
}

.store-arrow {
  width: 15px;
  height: 15px;
  margin-left: auto;
  color: var(--muted-2);
  transition: transform 0.2s ease, color 0.2s ease;
}

.store-card:hover .store-arrow {
  color: var(--accent);
  transform: translateX(3px);
}

.modal-note {
  padding: 14px 16px;
  border-left: 2px solid var(--accent);
  border-radius: 0 10px 10px 0;
  background: #eef4ff;
}

.modal-note span {
  display: block;
  margin-bottom: 4px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.modal-note p {
  color: var(--muted);
  font-size: 10.5px;
  line-height: 1.7;
}

.legal-page {
  padding: 58px 0 86px;
  background:
    radial-gradient(circle at 88% 6%, rgba(var(--accent-rgb), 0.075), transparent 24rem),
    var(--bg);
}

.legal-shell {
  max-width: 900px;
}

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.legal-back:hover {
  color: var(--accent);
}

.legal-back .icon {
  width: 15px;
  height: 15px;
}

.legal-content {
  padding: clamp(27px, 5vw, 52px);
  border: 1px solid #e4eaf3;
  border-radius: 18px;
  background: #ffffff;
  box-shadow: 0 12px 36px rgba(23, 37, 84, 0.05);
}

.legal-content h1 {
  margin-bottom: 7px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.1;
}

.legal-meta {
  margin-bottom: 30px;
  color: var(--muted-2);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.legal-content h2 {
  margin: 29px 0 9px;
  font-size: 18px;
  font-weight: 700;
}

.legal-content p,
.legal-content li {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.9;
}

.legal-content ul {
  padding-left: 20px;
}

.legal-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 23px;
}

.contact-card {
  padding: 20px;
  border: 1px solid #e4eaf3;
  border-radius: 12px;
  background: #f8faff;
}

.contact-card strong {
  display: block;
  margin-bottom: 5px;
  font-size: 14px;
}

.contact-card p {
  margin-bottom: 10px;
  font-size: 12px;
}

.contact-card a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  font-weight: 700;
}

.contact-content .section-kicker {
  margin-bottom: 10px;
}

.contact-content > p:not(.section-kicker):not(.legal-meta) {
  max-width: 720px;
}

@media (max-width: 980px) {
  .site-nav {
    position: fixed;
    right: 0;
    top: 74px;
    z-index: 210;
    width: min(310px, 86vw);
    height: calc(100dvh - 74px);
    overflow-y: auto;
    border-left: 1px solid #e6ebf3;
    background: #ffffff;
    box-shadow: -18px 0 45px rgba(23, 37, 84, 0.12);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(-18px);
    transition: transform 0.26s ease, opacity 0.26s ease, visibility 0.26s ease;
  }

  .site-nav-inner {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 24px 22px;
  }

  .site-nav-inner > a {
    padding: 16px 0;
    border-bottom: 1px solid #edf1f6;
    font-family: var(--font-display);
    font-size: 21px;
    font-weight: 700;
  }

  .site-nav-inner > a::after {
    display: none;
  }

  .nav-download {
    width: 100%;
    margin-top: 20px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-open .site-nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
  }

  .nav-open .nav-toggle-bar:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .nav-open .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .nav-open .nav-toggle-bar:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .nav-backdrop {
    position: fixed;
    inset: 74px 0 0;
    z-index: 190;
    display: block;
    background: rgba(15, 23, 42, 0.32);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.26s ease, visibility 0.26s ease;
  }

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

  .hero {
    padding-top: 54px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 45px;
  }

  .hero-copy {
    max-width: 730px;
    margin-inline: auto;
    text-align: center;
  }

  .eyebrow,
  .hero-badges,
  .hero-actions,
  .hero-specs {
    justify-content: center;
  }

  .hero-subtitle {
    margin-inline: auto;
  }

  .hero-media {
    max-width: 760px;
    justify-self: center;
  }

  .carousel-viewport {
    aspect-ratio: 4 / 3;
  }

  .phone-mockup {
    height: 86%;
  }

  .features-grid {
    grid-template-columns: 1fr;
    max-width: 680px;
    margin-inline: auto;
  }

  .feature-card {
    min-height: 0;
  }

  .modes-inner {
    grid-template-columns: 1fr;
  }

  .modes-copy {
    max-width: 640px;
  }

  .modes-visual {
    min-height: 560px;
  }

  .device-stack {
    inset: 0 0 0 14%;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(1180px, calc(100% - 28px));
  }

  .site-nav-bar,
  .nav-shell {
    min-height: 64px;
  }

  .site-nav {
    top: 64px;
    height: calc(100dvh - 64px);
  }

  .nav-backdrop {
    inset: 64px 0 0;
  }

  .logo-plate {
    width: 38px;
    height: 38px;
    border-radius: 9px;
  }

  .logo-mark {
    width: 37px;
    height: 37px;
  }

  .logo-copy strong {
    font-size: 16px;
  }

  .logo-copy small {
    font-size: 7px;
  }

  .hero {
    padding-top: 46px;
    padding-bottom: 38px;
  }

  .hero h1 {
    font-size: clamp(2.45rem, 11.2vw, 3.75rem);
  }

  .hero-subtitle {
    font-size: 13.5px;
    line-height: 1.8;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-specs {
    padding-top: 15px;
  }

  .hero-specs span {
    min-width: 33.333%;
    padding: 0 9px;
    font-size: 6.5px;
    letter-spacing: 0.06em;
  }

  .hero-specs strong {
    font-size: 13px;
  }

  .carousel-viewport {
    aspect-ratio: 4 / 3.3;
  }

  .phone-mockup {
    height: 88%;
  }

  .preview-chip {
    top: 11px;
    left: 11px;
  }

  .carousel-slide figcaption {
    left: 13px;
    bottom: 11px;
  }

  .carousel-slide figcaption small {
    font-size: 7.5px;
  }

  .slide-location {
    display: none;
  }

  .carousel-toolbar {
    padding: 10px 5px 2px;
  }

  .section-header {
    margin-bottom: 32px;
  }

  .section-header > p:last-child {
    font-size: 12.5px;
  }

  .features,
  .faq {
    padding: 66px 0;
  }

  .feature-card {
    padding: 25px 22px 23px;
  }

  .feature-note {
    flex-wrap: wrap;
    justify-content: flex-start;
    text-align: left;
  }

  .modes {
    padding: 60px 0;
  }

  .modes-visual {
    min-height: 520px;
  }

  .device-stack {
    inset: 0 0 0 16%;
  }

  .device-back {
    left: 0;
    top: 18%;
    height: 70%;
  }

  .device-front {
    right: 1%;
    height: 92%;
  }

  .cta-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-copy h2 {
    font-size: clamp(1.85rem, 8vw, 2.45rem);
  }

  .cta-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .download-buttons {
    grid-template-columns: 1fr;
  }

  .download-modal-panel {
    padding: 28px 19px 24px;
  }

  .download-modal-subtitle {
    padding-right: 28px;
    line-height: 1.6;
  }

  .store-card {
    min-height: 82px;
  }

  .legal-page {
    padding: 42px 0 70px;
  }

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

@media (max-width: 430px) {
  .logo-copy small {
    letter-spacing: 0.15em;
  }

  .hero-badges {
    gap: 5px;
  }

  .hero-badge {
    padding-inline: 8px;
    font-size: 9px;
  }

  .eyebrow {
    font-size: 8.2px;
    letter-spacing: 0.1em;
  }

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

  .modes-list li:nth-child(odd) {
    padding-right: 0;
    border-right: 0;
  }

  .modes-list li:nth-child(even) {
    padding-left: 0;
  }

  .modes-visual {
    min-height: 500px;
  }

  .device-stack {
    inset: 0 0 0 18%;
  }

  .device-back {
    left: 0;
    top: 19%;
    height: 70%;
  }

  .device-front {
    right: 1%;
    height: 92%;
  }

  .modes-overlay {
    left: 18px;
    bottom: 17px;
  }

  .modes-overlay strong {
    font-size: 30px;
  }
}

@media (max-width: 360px) {
  .hero h1 {
    font-size: clamp(2rem, 9.8vw, 2.35rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

}