:root {
  font-family:
    "Avenir Next", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: #15233a;
  background: #f5f7fb;
  font-synthesis: none;
  scroll-behavior: smooth;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
button,
a {
  font: inherit;
}
a {
  text-decoration: none;
  color: inherit;
}
button {
  cursor: pointer;
}
button:focus-visible,
a:focus-visible,
video:focus-visible {
  outline: 3px solid #63dcce;
  outline-offset: 4px;
}
img {
  display: block;
  max-width: 100%;
}
.container {
  width: min(1240px, calc(100% - 80px));
  margin: auto;
}
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  padding: 12px 20px;
  background: #fff;
  z-index: 100;
}
.skip-link:focus {
  top: 1rem;
}
.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 10;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
}
.nav-row {
  display: flex;
  align-items: center;
  min-height: 83px;
  gap: 3rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.06em;
  font-size: 21px;
  white-space: nowrap;
}
.brand-mark {
  display: grid;
  place-items: center;
  position: relative;
  width: 34px;
  height: 34px;
  background: #6fe5d8;
  color: #10223a;
  border-radius: 9px;
  font-size: 22px;
  letter-spacing: -0.08em;
}
.brand-mark span {
  font-size: 11px;
  position: absolute;
  top: -2px;
  right: 1px;
}
.brand-dot {
  color: #6de3d7;
}
.main-nav {
  display: flex;
  gap: 38px;
  align-items: center;
  margin: auto;
  color: #d2deec;
  font-size: 13px;
  font-weight: 600;
}
.main-nav a:hover,
.nav-source:hover {
  color: #78eadd;
}
.nav-source {
  border: 1px solid rgba(255, 255, 255, 0.31);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}
.nav-source span {
  margin-left: 6px;
  color: #72e6d9;
}
.hero {
  min-height: 790px;
  background: radial-gradient(
    circle at 76% 34%,
    #243e62 0%,
    #152944 33%,
    #101d31 73%
  );
  color: #fff;
  position: relative;
  overflow: hidden;
}
.hero:after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(175, 209, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(175, 209, 255, 0.022) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(90deg, transparent 35%, #000);
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(65px);
  opacity: 0.25;
  pointer-events: none;
}
.hero-glow-one {
  width: 480px;
  height: 480px;
  background: #2c849b;
  right: 10%;
  top: 22%;
}
.hero-glow-two {
  width: 320px;
  height: 320px;
  background: #263f9a;
  right: -13%;
  bottom: -25%;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 49% 51%;
  align-items: center;
  min-height: 750px;
  padding-top: 80px;
  gap: 6px;
}
.hero-copy {
  padding: 18px 0 30px;
}
.eyebrow {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  margin: 0;
  text-transform: uppercase;
}
.hero-eyebrow {
  color: #84ede1;
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: 0.14em;
}
.eyebrow-divider {
  opacity: 0.45;
}
.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: #6ae4d4;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(106, 228, 212, 0.13);
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
.hero h1 {
  font-size: clamp(56px, 5.05vw, 76px);
  line-height: 1.26;
  letter-spacing: -0.075em;
  margin: 30px 0 25px;
  font-weight: 900;
}
.highlight {
  color: #76e8d9;
}
.hero-period {
  color: #6fe4d6;
}
.hero-lead {
  font-size: 16px;
  line-height: 2;
  color: #b8c8d8;
  max-width: 510px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.button {
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  padding: 0 22px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 800;
  transition:
    transform 0.18s,
    background-color 0.18s,
    box-shadow 0.18s;
}
.button:hover {
  transform: translateY(-3px);
}
.button-primary {
  background: #75e7d9;
  color: #102638;
  box-shadow: 0 8px 30px rgba(111, 230, 213, 0.18);
}
.button-primary:hover {
  background: #9cf4e9;
}
.button-ghost {
  color: #eff6fb;
  border: 1px solid rgba(237, 246, 255, 0.3);
}
.button-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}
.play-icon {
  font-size: 11px;
}
.hero-caption {
  font-size: 11px;
  color: #829ab4;
  margin: 19px 0 0;
}
.hero-visual {
  position: relative;
  padding: 55px 0 55px 10px;
}
.browser-window {
  position: relative;
  z-index: 2;
  padding: 0;
  background: #edf5fb;
  border: 1px solid rgba(237, 255, 255, 0.3);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 34px 80px rgba(0, 0, 0, 0.48);
  transform: perspective(1100px) rotateY(-4deg) rotateX(2deg);
}
.browser-window img {
  width: 100%;
  height: auto;
}
.browser-topbar {
  height: 36px;
  background: #e9f1f6;
  color: #677889;
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 0 15px;
  font-size: 10px;
}
.browser-dots {
  display: flex;
  gap: 5px;
}
.browser-dots i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #b2c4cd;
}
.browser-dots i:first-child {
  background: #e9999c;
}
.browser-dots i:nth-child(2) {
  background: #e6c57c;
}
.browser-dots i:nth-child(3) {
  background: #91c9bb;
}
.browser-address {
  background: #fff;
  border-radius: 3px;
  padding: 4px 12px;
  flex: 1;
}
.browser-symbol {
  font-size: 15px;
}
.visual-orbit {
  position: absolute;
  border: 1px solid rgba(130, 232, 232, 0.13);
  border-radius: 50%;
  aspect-ratio: 1;
  pointer-events: none;
}
.orbit-one {
  width: 760px;
  left: -50px;
  top: -60px;
}
.orbit-two {
  width: 610px;
  left: 28px;
  top: 15px;
}
.visual-label {
  position: absolute;
  z-index: 3;
  right: -10px;
  bottom: 15px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: #fff;
  color: #1c3649;
  padding: 12px 17px;
  border-radius: 10px;
  box-shadow: 0 15px 45px rgba(0, 0, 0, 0.24);
  transform: rotate(-2deg);
}
.visual-label-icon {
  display: grid;
  place-items: center;
  background: #d9f8f1;
  color: #188c79;
  border-radius: 7px;
  width: 32px;
  height: 32px;
}
.visual-label strong,
.visual-label small {
  display: block;
}
.visual-label strong {
  font-size: 12px;
}
.visual-label small {
  font-size: 10px;
  color: #8497a8;
  margin-top: 2px;
}
.hero-footer {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  color: #7893a9;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.13em;
  padding-bottom: 26px;
}
.hero-footer a:hover {
  color: #84eada;
}
.hero-footer a span {
  margin-left: 9px;
}
.section-space {
  padding: 112px 0;
}
.demo-section {
  background: #f5f7fb;
}
.section-intro {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 50px;
  margin-bottom: 37px;
}
.section-intro > p {
  max-width: 370px;
  color: #657588;
  line-height: 1.9;
  font-size: 13px;
  margin-bottom: 6px;
}
.light-eyebrow {
  color: #328d86;
}
.index-mark {
  color: #008c84;
  margin-right: 12px;
}
.section-intro h2,
.try-copy h2 {
  font-size: clamp(35px, 3.45vw, 49px);
  line-height: 1.4;
  letter-spacing: -0.06em;
  margin: 17px 0 0;
  color: #17273c;
  font-weight: 900;
}
.accent-text {
  color: #269b92;
}
.demo-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(270px, 0.82fr);
  gap: 22px;
}
.video-shell {
  background: #142238;
  border: 1px solid #223550;
  border-radius: 13px;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(16, 34, 54, 0.1);
}
.video-topline,
.video-bottomline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  color: #a1b6c9;
  font-size: 10px;
  padding: 16px 20px;
  letter-spacing: 0.03em;
}
.video-live {
  color: #86eadb;
  font-weight: 800;
  letter-spacing: 0.1em;
}
.video-live .status-dot {
  margin-right: 8px;
  width: 6px;
  height: 6px;
}
.video-shell video {
  width: 100%;
  display: block;
  aspect-ratio: 16/9;
  background: #0d1725;
  object-fit: contain;
}
.video-bottomline a {
  color: #75e6d7;
  font-weight: 700;
}
.video-bottomline a:hover {
  text-decoration: underline;
}
.chapters {
  background: #fff;
  border: 1px solid #e2e9f0;
  border-radius: 13px;
  padding: 22px;
  display: flex;
  flex-direction: column;
}
.chapters-heading {
  font-size: 13px;
  font-weight: 800;
  color: #16273e;
  display: flex;
  justify-content: space-between;
  padding: 1px 2px 14px;
  border-bottom: 1px solid #e9eef3;
}
.chapters-heading span:last-child {
  font-size: 17px;
  color: #8ba2b4;
}
.chapter {
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  border: 0;
  background: transparent;
  border-bottom: 1px solid #edf0f4;
  min-height: 76px;
  width: 100%;
  padding: 12px 7px;
  color: #243650;
  transition:
    background 0.2s,
    border-color 0.2s;
}
.chapter:hover {
  background: #f3faf9;
}
.chapter.is-active {
  background: #eaf9f6;
  border-radius: 6px;
  border-bottom-color: transparent;
}
.chapter-time {
  font-size: 10px;
  font-weight: 800;
  color: #2a9b8d;
  align-self: flex-start;
  margin-top: 8px;
}
.chapter-text {
  flex: 1;
}
.chapter-text strong,
.chapter-text small {
  display: block;
}
.chapter-text strong {
  font-size: 12px;
}
.chapter-text small {
  font-size: 10px;
  color: #8496a7;
  margin-top: 5px;
}
.chapter-arrow {
  color: #83ada8;
}
.chapters-note {
  display: flex;
  gap: 12px;
  margin-top: auto;
  padding: 19px 2px 0;
  color: #4a988f;
}
.chapters-note p {
  font-size: 11px;
  line-height: 1.7;
  color: #7b8c9b;
  margin: 0;
}
.how-section {
  background: #fff;
}
.how-intro {
  margin-bottom: 41px;
}
.flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1fr) 24px minmax(0, 1fr);
  align-items: center;
  gap: 14px;
}
.flow-card {
  height: 335px;
  overflow: hidden;
  position: relative;
  background: #f5f8fb;
  border: 1px solid #e7edf2;
  border-radius: 12px;
  padding: 25px;
}
.flow-number {
  font-size: 10px;
  color: #328b88;
  font-weight: 800;
  letter-spacing: 0.11em;
}
.flow-graphic {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.input-graphic {
  flex-direction: column;
  gap: 10px;
}
.caption-line {
  background: #b5d4d8;
  height: 11px;
  width: 142px;
  border-radius: 4px;
  transform: translateX(-22px);
}
.caption-line.short {
  width: 100px;
  transform: translateX(-41px);
}
.waveform {
  letter-spacing: 5px;
  color: #30aa9f;
  font-size: 26px;
  margin-top: 0;
  font-weight: 800;
}
.match-graphic {
  gap: 10px;
}
.match-graphic > span:first-child,
.match-graphic > span:last-child {
  background: #fff;
  border: 1px solid #dce8eb;
  box-shadow: 0 8px 20px rgba(20, 57, 75, 0.04);
  padding: 12px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 700;
  color: #2f7181;
}
.match-graphic .match-symbol {
  font-size: 22px;
  color: #2ebca9;
}
.avatar-card {
  background: #eaf6f5;
}
.avatar-graphic {
  align-items: flex-end;
}
.avatar-graphic img {
  height: 153px;
  width: auto;
  object-fit: cover;
  object-position: top;
  filter: drop-shadow(0 8px 9px rgba(24, 53, 76, 0.08));
}
.flow-card h3 {
  font-size: 17px;
  letter-spacing: -0.04em;
  margin-bottom: 7px;
}
.flow-card p {
  color: #657a88;
  font-size: 12px;
  line-height: 1.85;
  margin: 0;
  max-width: 250px;
}
.flow-connector {
  font-size: 25px;
  text-align: center;
  color: #49bbaa;
}
.prototype-note {
  margin: 24px 0 0;
  color: #7d8d9a;
  font-size: 11px;
  line-height: 1.8;
}
.prototype-note span {
  font-size: 14px;
  color: #329f92;
  margin-right: 6px;
}
.try-section {
  background: #13243d;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.try-section:before {
  content: "";
  position: absolute;
  right: -190px;
  top: -190px;
  width: 600px;
  height: 600px;
  border: 1px solid rgba(109, 230, 210, 0.15);
  border-radius: 50%;
  box-shadow:
    0 0 0 90px rgba(109, 230, 210, 0.02),
    0 0 0 180px rgba(109, 230, 210, 0.017);
}
.try-grid {
  position: relative;
  display: grid;
  grid-template-columns: 0.9fr 1fr;
  gap: 100px;
  align-items: center;
}
.try-eyebrow {
  color: #79dfd2;
}
.try-eyebrow .index-mark {
  color: #80e5d7;
}
.try-copy h2 {
  color: #fff;
  margin: 18px 0 18px;
}
.try-copy h2 span {
  color: #77e5d6;
}
.try-copy > p:not(.eyebrow) {
  color: #aebfd1;
  line-height: 1.95;
  font-size: 14px;
  max-width: 465px;
  margin-bottom: 27px;
}
.download-button {
  min-width: 244px;
}
.download-meta {
  display: block;
  font-size: 10px;
  color: #819ab1;
  margin-top: 16px;
}
.install-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}
.install-steps li {
  display: flex;
  gap: 25px;
  border-bottom: 1px solid rgba(219, 238, 247, 0.13);
  padding: 24px 0;
}
.install-steps li:last-child {
  border-bottom: 0;
}
.step-number {
  color: #75e3d5;
  font-size: 13px;
  font-weight: 800;
  padding-top: 3px;
}
.install-steps h3 {
  font-size: 16px;
  margin-bottom: 8px;
}
.install-steps p {
  font-size: 12px;
  color: #a1b4c7;
  line-height: 1.8;
  margin: 0;
}
.install-steps code {
  color: #d3f7ed;
  background: rgba(255, 255, 255, 0.09);
  padding: 2px 5px;
  border-radius: 3px;
  white-space: nowrap;
}
.closing {
  background: #eaf7f4;
  padding: 60px 0;
}
.closing-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
}
.closing .eyebrow {
  color: #2d998e;
}
.closing h2 {
  font-size: 31px;
  margin: 8px 0 5px;
  letter-spacing: -0.06em;
}
.closing h2 span {
  color: #219a8e;
}
.closing p:last-child {
  color: #667e87;
  font-size: 12px;
  margin: 0;
}
.button-dark {
  background: #172b42;
  color: #fff;
}
.button-dark:hover {
  background: #27445b;
}
.site-footer {
  background: #102036;
  color: #8399aa;
}
.footer-row {
  display: flex;
  align-items: center;
  gap: 32px;
  min-height: 106px;
  font-size: 11px;
}
.footer-row p {
  margin: 0;
  flex: 1;
}
.footer-row > a:last-child:hover {
  color: #83e6d8;
}
.footer-brand {
  color: #fff;
  font-size: 17px;
}
.footer-brand .brand-mark {
  width: 28px;
  height: 28px;
  font-size: 18px;
}
.footer-brand .brand-mark span {
  font-size: 9px;
}
@media (max-width: 1080px) {
  .hero {
    min-height: auto;
  }
  .hero-grid {
    min-height: 690px;
    grid-template-columns: 48% 52%;
  }
  .hero h1 {
    font-size: 56px;
  }
  .hero-lead {
    font-size: 14px;
  }
  .try-grid {
    gap: 50px;
  }
  .chapters {
    padding: 15px;
  }
  .chapter {
    min-height: 70px;
  }
}
@media (max-width: 760px) {
  .container {
    width: min(100% - 38px, 580px);
  }
  .site-header {
    position: absolute;
  }
  .nav-row {
    min-height: 68px;
    gap: 10px;
  }
  .brand {
    font-size: 19px;
  }
  .main-nav {
    display: none;
  }
  .nav-source {
    margin-left: auto;
    font-size: 11px;
    padding: 9px 11px;
  }
  .hero-grid {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    min-height: 0;
    padding-top: 126px;
    padding-bottom: 50px;
    gap: 35px;
  }
  .hero-copy {
    padding: 0;
  }
  .hero h1 {
    font-size: clamp(47px, 10vw, 67px);
    margin: 21px 0;
  }
  .hero-lead {
    font-size: 14px;
    line-height: 1.85;
  }
  .hero-caption {
    line-height: 1.7;
  }
  .hero-visual {
    padding: 0 3px 16px;
  }
  .browser-window {
    transform: none;
  }
  .browser-topbar {
    height: 30px;
    font-size: 9px;
  }
  .visual-label {
    right: 0;
    bottom: -7px;
    padding: 8px 10px;
  }
  .visual-label strong {
    font-size: 10px;
  }
  .visual-label small {
    font-size: 9px;
  }
  .visual-label-icon {
    width: 25px;
    height: 25px;
  }
  .visual-orbit {
    display: none;
  }
  .hero-footer {
    padding-bottom: 25px;
  }
  .section-space {
    padding: 75px 0;
  }
  .section-intro {
    display: block;
    margin-bottom: 25px;
  }
  .section-intro h2,
  .try-copy h2 {
    font-size: 37px;
  }
  .section-intro > p {
    margin: 17px 0 0;
    max-width: 100%;
  }
  .demo-layout {
    grid-template-columns: 1fr;
  }
  .chapters {
    padding: 17px;
  }
  .chapters-note {
    padding: 18px 4px 0;
  }
  .flow {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .flow-card {
    width: 100%;
    height: 245px;
  }
  .flow-graphic {
    height: 105px;
  }
  .avatar-graphic img {
    height: 105px;
  }
  .flow-connector {
    transform: rotate(90deg);
    font-size: 18px;
    line-height: 18px;
  }
  .flow-card p {
    max-width: none;
  }
  .try-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .try-copy > p:not(.eyebrow) {
    max-width: none;
  }
  .install-steps li {
    padding: 20px 0;
  }
  .closing-row {
    display: block;
  }
  .closing .button {
    margin-top: 26px;
  }
  .footer-row {
    flex-wrap: wrap;
    gap: 12px;
    padding: 22px 0;
  }
  .footer-row p {
    flex-basis: 100%;
    order: 2;
  }
  .footer-row > a:last-child {
    margin-left: auto;
  }
}
@media (max-width: 410px) {
  .container {
    width: calc(100% - 32px);
  }
  .hero h1 {
    font-size: 45px;
  }
  .button {
    padding: 0 15px;
    font-size: 12px;
  }
  .hero-eyebrow {
    font-size: 9px;
  }
  .video-topline,
  .video-bottomline {
    padding: 12px;
    font-size: 9px;
  }
  .video-topline span:last-child {
    display: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *:before,
  *:after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}