:root {
  --blue: #0000ff;
  --ink: #17182b;
  --muted: #737589;
  --line: #e6e7ef;
  --paper: #f7f8fc;
  --pale: #efefff;
  color-scheme: light;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}
body {
  margin: 0;
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    'PingFang SC',
    'Microsoft YaHei',
    sans-serif;
  color: var(--ink);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
}
a,
button,
summary {
  -webkit-tap-highlight-color: transparent;
}
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 5px;
}
::selection {
  background: #0000ff18;
}
h1,
h2,
h3,
h4,
p {
  margin: 0;
}
h1 {
  font-size: clamp(40px, 4.5vw, 64px);
  line-height: 1.3;
  letter-spacing: -2px;
  font-weight: 650;
}
h2 {
  font-size: clamp(30px, 3.3vw, 44px);
  line-height: 1.4;
  letter-spacing: -1.2px;
  font-weight: 620;
}
h3 {
  font-size: 28px;
  font-weight: 620;
  letter-spacing: -0.5px;
}
h4 {
  font-size: 20px;
  font-weight: 600;
}
button,
a,
summary {
  touch-action: manipulation;
}
.wrap {
  max-width: 1240px;
  width: calc(100% - 112px);
  margin: auto;
}
.section {
  padding-block: 100px;
}
.blue {
  color: var(--blue);
}
.blue-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: var(--blue);
  border-radius: 50%;
  flex-shrink: 0;
}
.eyebrow {
  font-size: 10px;
  letter-spacing: 2px;
  font-weight: 650;
  color: var(--muted);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.skip {
  position: fixed;
  left: 12px;
  top: -70px;
  background: white;
  padding: 12px;
  z-index: 100;
}
.skip:focus {
  top: 12px;
}
.site-header {
  height: 94px;
  padding: 0 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  background: #ffffffed;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
}
.logo {
  display: block;
  width: 182px;
  height: 43px;
  background: white url('/assets/byteshows-brand.jpg') 50% 27.4% / 295% auto no-repeat;
  flex-shrink: 0;
}
.site-header nav {
  display: flex;
  gap: 34px;
  font-size: 13px;
  color: #54566b;
}
.site-header nav a:hover {
  color: var(--blue);
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  background: var(--blue);
  color: white;
  padding: 14px 22px;
  font-size: 13px;
  font-weight: 550;
  border: 1px solid var(--blue);
  border-radius: 5px;
  transition: background 0.2s;
}
.button:hover {
  background: #2525d9;
}
.button.small {
  padding: 10px 17px;
  font-size: 12px;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  font-size: 13px;
  font-weight: 600;
  color: var(--blue);
}
.text-link:hover {
  text-decoration: underline;
  text-underline-offset: 5px;
}
.hero {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 65px;
  align-items: center;
  padding-block: 86px 80px;
}
.hero .eyebrow {
  margin-bottom: 32px;
}
.lead {
  max-width: 500px;
  font-size: 15px;
  color: #686b7e;
  line-height: 1.95;
  margin-top: 27px;
}
.actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 32px;
}
.hero-note {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 11px;
  color: #898c9c;
  margin-top: 45px;
}
.hero-note i {
  height: 10px;
  width: 1px;
  background: #d9dbe7;
}
.system-art {
  height: 454px;
  position: relative;
  background-color: #f8f8fd;
  background-image: radial-gradient(#d5d6e5 0.7px, transparent 0.7px);
  background-size: 18px 18px;
  border: 1px solid var(--line);
  overflow: hidden;
  border-radius: 7px;
}
.art-top,
.art-bottom {
  position: absolute;
  left: 22px;
  right: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 9px;
  letter-spacing: 1.5px;
  color: #85889e;
}
.art-top {
  top: 22px;
}
.art-bottom {
  bottom: 22px;
  font-size: 10px;
  letter-spacing: 0.8px;
}
.orbit {
  position: absolute;
  border: 1px solid #dadbed;
  border-radius: 50%;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.orbit-one {
  width: 270px;
  height: 270px;
}
.orbit-two {
  width: 380px;
  height: 380px;
  border-style: dashed;
}
.art-core {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  width: 156px;
  height: 156px;
  border-radius: 50%;
  background: var(--blue);
  color: white;
  box-shadow: 0 0 0 10px #0000ff08;
}
.core-star {
  font-size: 37px;
  line-height: 1.2;
  font-weight: 400;
}
.art-core strong {
  font-size: 20px;
  font-weight: 550;
  margin-top: 7px;
}
.art-core small {
  font-size: 7px;
  letter-spacing: 1px;
  margin-top: 8px;
  color: #c1c1ff;
}
.art-node {
  position: absolute;
  border: 1px solid #dddff0;
  background: white;
  box-shadow: 0 8px 25px #10104808;
  border-radius: 5px;
  padding: 14px 19px;
  min-width: 150px;
}
.art-node strong {
  font-size: 15px;
  display: block;
}
.art-node small {
  display: block;
  font-size: 10px;
  color: #7b8094;
}
.node-index {
  font-size: 9px;
  color: var(--blue);
  float: right;
  padding-left: 12px;
}
.node-geo {
  top: 73px;
  left: 28px;
}
.node-leads {
  top: 161px;
  right: 15px;
}
.node-media {
  bottom: 65px;
  left: 45px;
}
.principle-strip {
  border-block: 1px solid var(--line);
  background: #fafafe;
}
.principle-strip .wrap {
  padding-block: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.principle-strip span {
  font-size: 9px;
  color: #8d90a3;
  letter-spacing: 1.7px;
}
.principle-strip p {
  font-size: 14px;
  color: #555c76;
}
.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 45px;
  margin-bottom: 60px;
}
.section-heading p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}
.product-row {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 8px 90px;
  border-top: 1px solid var(--line);
  padding-block: 42px 48px;
}
.product-number {
  grid-column: 1/-1;
  color: #8b8da0;
  font-size: 9px;
  letter-spacing: 1.5px;
  margin-bottom: 18px;
}
.product-symbol {
  font-size: 36px;
  color: var(--blue);
  display: block;
  line-height: 1.3;
  margin-bottom: 16px;
}
.product-title p {
  color: #767a91;
  font-size: 14px;
  margin-top: 10px;
}
.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  border: 1px solid #e0e1f0;
  border-radius: 20px;
  color: #7d8097;
  padding: 3px 9px;
  margin-top: 22px;
}
.status.live span {
  height: 5px;
  width: 5px;
  background: #179b75;
  border-radius: 50%;
}
.product-body {
  padding-top: 6px;
}
.product-body p {
  font-size: 14px;
  color: var(--muted);
  margin-top: 14px;
  line-height: 1.9;
}
.features {
  list-style: none;
  margin: 22px 0 25px;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 14px;
  font-size: 12px;
  color: #555e79;
}
.features li:before {
  content: '↗';
  color: var(--blue);
  margin-right: 9px;
}
.availability {
  display: block;
  font-size: 10px;
  color: #8c8fa2;
  margin-top: 10px;
}
.selector-section {
  background: var(--pale);
  padding: 90px 0;
}
.selector-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 100px;
  align-items: center;
}
.selector-layout > div > p {
  color: #747891;
  font-size: 13px;
  margin-top: 20px;
}
.choices {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 35px;
}
.choice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 17px;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 5px;
  color: #686b87;
  text-align: left;
  cursor: pointer;
  font-size: 13px;
}
.choice.active {
  background: white;
  border-color: #dbdbf8;
  color: var(--blue);
  box-shadow: 0 3px 12px #0000ff03;
}
.choice:hover {
  border-color: #c4c4f2;
}
.recommendation {
  background: white;
  border-radius: 7px;
  border: 1px solid #e0e0f6;
  padding: 36px;
  min-height: 405px;
  box-shadow: 0 20px 50px #0000ff05;
}
.recommendation .eyebrow {
  font-size: 8px;
  margin-bottom: 24px;
}
.recommend-icon {
  font-size: 39px;
  color: var(--blue);
  line-height: 1.5;
  display: block;
}
.recommendation h3 {
  font-size: 26px;
  margin-top: 6px;
}
.recommendation p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.9;
  margin-top: 14px;
}
.recommend-tags {
  display: flex;
  gap: 8px;
  margin: 23px 0;
  flex-wrap: wrap;
}
.recommend-tags span {
  padding: 3px 8px;
  color: #767b95;
  font-size: 10px;
  background: #f6f6fc;
  border-radius: 4px;
}
.recommendation .button {
  padding: 10px 16px;
  font-size: 12px;
}
.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 44px;
}
.approach-grid article {
  border-top: 1px solid var(--line);
  padding-top: 25px;
}
.line-icon {
  display: block;
  color: var(--blue);
  font-size: 30px;
  margin-bottom: 18px;
}
.approach-grid h3 {
  font-size: 18px;
}
.approach-grid p {
  font-size: 13px;
  line-height: 1.95;
  color: var(--muted);
  margin-top: 14px;
}
.faq-section {
  padding-block: 30px 110px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 90px;
}
.faq-section h2 {
  font-size: 32px;
}
.faqs {
  border-top: 1px solid var(--line);
}
details {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
}
summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 14px;
  cursor: pointer;
}
summary::-webkit-details-marker {
  display: none;
}
summary span {
  color: var(--blue);
  font-size: 18px;
}
details[open] summary span {
  transform: rotate(45deg);
}
details p {
  font-size: 13px;
  color: var(--muted);
  padding-top: 17px;
  line-height: 1.95;
}
.entrances {
  background: #111137;
  color: white;
  padding: 78px 0 88px;
}
.entrances .eyebrow {
  color: #9090be;
}
.entrances h2 {
  font-size: 42px;
}
.entrances p {
  color: #a4a4c6;
  font-size: 14px;
  margin-top: 12px;
}
.entrance-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 45px;
}
.entrance-grid a {
  display: block;
  border-top: 1px solid #494966;
  padding-top: 24px;
  transition: border-color 0.2s;
}
.entrance-grid a:hover {
  border-color: white;
}
.entrance-grid a > span {
  font-size: 10px;
  color: #a4a4c9;
  letter-spacing: 1px;
}
.entrance-grid strong {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 21px;
  font-weight: 500;
  margin-top: 12px;
}
.entrance-grid b {
  font-weight: 400;
  color: #a8a8ff;
}
.entrance-grid small {
  display: block;
  color: #9292b6;
  font-size: 10px;
  margin-top: 12px;
}
.site-footer {
  padding-block: 38px;
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: center;
}
.site-footer .logo {
  width: 150px;
  height: 35px;
}
.site-footer p {
  font-size: 10px;
  color: #8b8d9f;
  margin-top: 14px;
}
.site-footer > div:last-child {
  display: flex;
  gap: 24px;
  align-items: center;
  font-size: 10px;
  color: #8b8d9f;
}
.site-footer a:hover {
  color: var(--blue);
}
@media (min-width: 1600px) {
  .hero {
    gap: 100px;
    padding-block: 110px;
  }
  .system-art {
    height: 485px;
  }
}
@media (max-width: 1100px) {
  .wrap {
    width: calc(100% - 64px);
  }
  .site-header {
    padding-inline: 32px;
  }
  .hero {
    gap: 30px;
  }
  .system-art {
    height: 415px;
  }
  .art-node {
    min-width: 130px;
    padding: 12px;
  }
  .node-geo {
    left: 14px;
  }
  .node-leads {
    right: 10px;
    top: 165px;
  }
  .node-media {
    left: 25px;
  }
  .art-core {
    width: 130px;
    height: 130px;
  }
  .art-core strong {
    font-size: 17px;
  }
  .orbit-one {
    width: 240px;
    height: 240px;
  }
  .orbit-two {
    width: 320px;
    height: 320px;
  }
  .selector-layout {
    gap: 55px;
  }
  .product-row,
  .faq-section {
    column-gap: 50px;
  }
}
@media (max-width: 800px) {
  .site-header {
    height: 80px;
    gap: 16px;
  }
  .site-header nav {
    gap: 15px;
    font-size: 11px;
  }
  .logo {
    width: 145px;
    height: 34px;
  }
  .site-header .button {
    font-size: 11px;
    padding: 8px 12px;
    gap: 10px;
  }
  .hero {
    grid-template-columns: 1fr;
    padding-block: 55px;
    gap: 38px;
  }
  .hero-copy {
    max-width: 580px;
  }
  .hero h1 {
    font-size: 48px;
  }
  .lead {
    max-width: 560px;
  }
  .system-art {
    height: 370px;
    max-width: 620px;
    width: 100%;
  }
  .node-geo {
    left: 12%;
    top: 60px;
  }
  .node-leads {
    right: 6%;
    top: 145px;
  }
  .node-media {
    left: 16%;
    bottom: 45px;
  }
  .art-core {
    width: 145px;
    height: 145px;
  }
  .orbit-one {
    width: 250px;
    height: 250px;
  }
  .orbit-two {
    width: 340px;
    height: 340px;
  }
  .principle-strip .wrap {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .section {
    padding-block: 65px;
  }
  .section-heading {
    gap: 20px;
    margin-bottom: 36px;
  }
  .section-heading h2 {
    font-size: 32px;
  }
  .section-heading p {
    font-size: 12px;
  }
  .product-row {
    column-gap: 35px;
  }
  .product-title h3 {
    font-size: 25px;
  }
  .product-body h4 {
    font-size: 17px;
  }
  .features {
    grid-template-columns: 1fr;
    gap: 7px;
  }
  .selector-section {
    padding: 60px 0;
  }
  .selector-layout {
    gap: 35px;
    grid-template-columns: 1fr 1fr;
  }
  .selector-layout h2 {
    font-size: 29px;
  }
  .recommendation {
    padding: 25px;
    min-height: 420px;
  }
  .recommendation h3 {
    font-size: 22px;
  }
  .choice {
    padding: 12px 10px;
    font-size: 12px;
  }
  .approach-grid {
    gap: 25px;
  }
  .approach-grid h3 {
    font-size: 16px;
  }
  .faq-section {
    gap: 40px;
    padding-bottom: 65px;
  }
  .faq-section h2 {
    font-size: 29px;
  }
  .entrance-grid {
    gap: 18px;
  }
  .entrance-grid strong {
    font-size: 18px;
  }
  .site-footer {
    align-items: flex-start;
  }
  .site-footer > div:last-child {
    flex-wrap: wrap;
    justify-content: flex-end;
    max-width: 270px;
    gap: 12px 20px;
  }
}
@media (max-width: 560px) {
  .wrap {
    width: calc(100% - 40px);
  }
  .site-header {
    padding: 16px 20px;
    height: auto;
    flex-wrap: wrap;
    gap: 14px;
  }
  .site-header .logo {
    width: 150px;
    height: 35px;
  }
  .site-header nav {
    order: 3;
    flex-basis: 100%;
    justify-content: space-between;
    border-top: 1px solid #f1f2f7;
    padding-top: 11px;
  }
  .site-header .button {
    margin-left: auto;
  }
  .hero {
    padding-block: 42px;
  }
  .hero .eyebrow {
    font-size: 8px;
    letter-spacing: 1.4px;
    margin-bottom: 23px;
  }
  .hero h1 {
    font-size: 38px;
    letter-spacing: -1.5px;
  }
  .lead {
    font-size: 13px;
    line-height: 1.95;
    margin-top: 22px;
  }
  .actions {
    gap: 18px;
    flex-wrap: wrap;
    margin-top: 25px;
  }
  .actions .button {
    padding: 12px 17px;
    gap: 16px;
  }
  .text-link {
    font-size: 12px;
    gap: 12px;
  }
  .hero-note {
    margin-top: 28px;
    font-size: 10px;
  }
  .system-art {
    height: 350px;
  }
  .art-node {
    min-width: 120px;
    padding: 10px 12px;
  }
  .art-node strong {
    font-size: 12px;
  }
  .art-node small {
    font-size: 9px;
  }
  .node-geo {
    left: 12px;
    top: 60px;
  }
  .node-leads {
    right: 10px;
    top: 140px;
  }
  .node-media {
    left: 26px;
    bottom: 47px;
  }
  .art-core {
    width: 117px;
    height: 117px;
  }
  .art-core strong {
    font-size: 15px;
  }
  .core-star {
    font-size: 29px;
  }
  .art-core small {
    font-size: 6px;
    letter-spacing: 0.5px;
  }
  .orbit-one {
    width: 215px;
    height: 215px;
  }
  .orbit-two {
    width: 290px;
    height: 290px;
  }
  .art-top {
    font-size: 7px;
  }
  .art-bottom {
    font-size: 8px;
  }
  .principle-strip span {
    font-size: 7px;
    letter-spacing: 1.2px;
  }
  .principle-strip p {
    font-size: 12px;
  }
  .section-heading {
    display: block;
  }
  .section-heading p {
    margin-top: 22px;
  }
  .eyebrow {
    font-size: 8px;
    margin-bottom: 15px;
  }
  .section-heading h2 {
    font-size: 30px;
  }
  .product-row {
    grid-template-columns: 1fr;
    padding-block: 30px 38px;
    gap: 20px;
  }
  .product-number {
    margin-bottom: 0;
    font-size: 8px;
  }
  .product-symbol {
    font-size: 31px;
    margin-bottom: 9px;
  }
  .product-title h3 {
    font-size: 27px;
  }
  .product-title p {
    font-size: 13px;
    margin-top: 7px;
  }
  .status {
    margin-top: 14px;
  }
  .product-body h4 {
    font-size: 16px;
  }
  .product-body p {
    font-size: 13px;
  }
  .features {
    grid-template-columns: 1fr 1fr;
    font-size: 11px;
    gap: 10px 8px;
  }
  .selector-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .recommendation {
    min-height: 0;
    padding: 27px;
  }
  .choice {
    padding: 14px;
    font-size: 13px;
  }
  .choices {
    margin-top: 24px;
  }
  .approach-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .approach-grid article {
    padding-top: 20px;
  }
  .line-icon {
    margin-bottom: 10px;
  }
  .approach-grid h3 {
    font-size: 18px;
  }
  .faq-section {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-top: 10px;
  }
  .faq-section h2 {
    font-size: 29px;
  }
  summary {
    font-size: 13px;
  }
  .entrances {
    padding: 55px 0;
  }
  .entrances h2 {
    font-size: 34px;
  }
  .entrance-grid {
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 30px;
  }
  .entrance-grid strong {
    font-size: 23px;
  }
  .entrance-grid a {
    padding-top: 18px;
  }
  .site-footer {
    flex-direction: column;
    padding-block: 30px;
    gap: 28px;
  }
  .site-footer > div:last-child {
    max-width: none;
    justify-content: flex-start;
    font-size: 9px;
    gap: 14px;
  }
  .site-footer > div:last-child > span {
    flex-basis: 100%;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    transition: none !important;
  }
}

#entry-notice {
  width: min(480px, calc(100% - 40px));
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 32px;
  color: var(--ink);
  box-shadow: 0 30px 100px #11113725;
}
#entry-notice::backdrop {
  background: #17182b55;
  backdrop-filter: blur(3px);
}
#entry-notice h2 {
  font-size: 24px;
  line-height: 1.5;
}
#entry-notice p {
  font-size: 13px;
  color: var(--muted);
  margin-top: 16px;
  line-height: 1.9;
  overflow-wrap: anywhere;
}
#entry-notice .button {
  margin-top: 24px;
  cursor: pointer;
}

.header-actions{display:flex;gap:20px;align-items:center}.entrance-grid{grid-template-columns:repeat(2,minmax(0,1fr))}@media(max-width:640px){.header-actions{gap:12px}.entrance-grid{grid-template-columns:1fr}}