:root {
  --ink: #161a20;
  --graphite: #3d444e;
  --muted: #6f7782;
  --silver: #d9dde2;
  --silver-2: #eef0f2;
  --white: #ffffff;
  --line: #cfd4da;
  --blue: #2b71d1;
  --red: #ef3857;
  --green: #1c9b72;
  --shadow: 0 28px 80px rgba(45, 52, 60, 0.16);
  --metal: linear-gradient(135deg, #fff 0%, #c9ced4 18%, #f8f9fa 34%, #aeb5bd 52%, #f8f9fa 69%, #c4c9cf 84%, #fff 100%);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% 5%, #fff, transparent 35rem),
    linear-gradient(180deg, #edf0f2 0%, #fafbfb 35%, #e8ebee 100%);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  line-height: 1.72;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  content: "";
  opacity: 0.5;
  background:
    linear-gradient(115deg, transparent 10%, rgba(255,255,255,.8) 22%, transparent 34%),
    repeating-linear-gradient(90deg, transparent 0 89px, rgba(98, 107, 118, 0.05) 90px);
  mask-image: linear-gradient(#000, transparent 80%);
}

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

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

.skip {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  padding: 8px 13px;
  color: #fff;
  background: var(--ink);
  border-radius: 999px;
  transform: translateY(-160%);
}

.skip:focus {
  transform: translateY(0);
}

.container {
  width: min(1200px, calc(100% - 48px));
  margin-inline: auto;
}

.header {
  position: sticky;
  z-index: 50;
  top: 0;
  padding: 12px 0;
  background: rgba(237, 240, 242, 0.78);
  backdrop-filter: blur(22px);
}

.nav {
  display: grid;
  min-height: 60px;
  align-items: center;
  padding: 8px 10px 8px 18px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(181, 188, 195, 0.7);
  border-radius: 999px;
  box-shadow: 0 14px 44px rgba(62, 70, 79, 0.1);
  grid-template-columns: auto 1fr auto;
  gap: 34px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 16px;
  font-weight: 900;
}

.brand-drop {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: #fff;
  background: linear-gradient(145deg, #636c76, #161a20);
  border: 1px solid #fff;
  border-radius: 58% 42% 62% 38% / 40% 55% 45% 60%;
  box-shadow: inset -6px -7px 11px rgba(0,0,0,.24), inset 6px 6px 12px rgba(255,255,255,.35);
}

.navlinks {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 27px;
  color: #58616b;
  font-size: 13px;
  font-weight: 700;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 11px;
}

.language {
  color: #7d848d;
  font-size: 11px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 19px;
  color: var(--ink);
  background: rgba(255,255,255,.75);
  border: 1px solid #c9ced4;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 900;
  line-height: 1.2;
  transition: .2s ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(53,61,69,.14);
}

.button-dark {
  color: #fff;
  background: var(--ink);
  border-color: var(--ink);
}

.button-blue {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.menu {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 50%;
  font-size: 19px;
}

.hero {
  position: relative;
  min-height: 790px;
  padding: 86px 0 44px;
  overflow: hidden;
}

.hero-center {
  position: relative;
  z-index: 2;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  padding: 6px 11px;
  color: #535c66;
  background: rgba(255,255,255,.64);
  border: 1px solid #d0d5da;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 7px;
  height: 7px;
  content: "";
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(28,155,114,.12);
}

.hero h1,
.inner-hero h1 {
  max-width: 950px;
  margin: 0 auto;
  font-size: clamp(50px, 7.8vw, 96px);
  line-height: .98;
  letter-spacing: -.075em;
}

.metal-text {
  color: transparent;
  background: linear-gradient(110deg, #171a1e 5%, #7d858e 32%, #20252b 52%, #8e969f 70%, #171a1e 94%);
  background-clip: text;
}

.hero-copy {
  max-width: 700px;
  margin: 25px auto 0;
  color: var(--muted);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 11px;
  margin-top: 29px;
}

.liquid-stage {
  position: relative;
  width: min(640px, 90%);
  height: 390px;
  margin: 28px auto 0;
}

.liquid-orb {
  position: absolute;
  width: 430px;
  height: 300px;
  top: 50px;
  left: 50%;
  background: var(--metal);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 64% 36% 53% 47% / 48% 61% 39% 52%;
  box-shadow:
    inset 28px 25px 50px rgba(255,255,255,.75),
    inset -30px -25px 52px rgba(79,88,98,.2),
    0 35px 70px rgba(57,65,73,.2);
  transform: translateX(-50%) rotate(-7deg);
}

.liquid-orb::after {
  position: absolute;
  width: 100px;
  height: 46px;
  top: 31px;
  left: 92px;
  content: "";
  background: rgba(255,255,255,.75);
  border-radius: 50%;
  filter: blur(9px);
  transform: rotate(-20deg);
}

.hero-product {
  position: absolute;
  z-index: 2;
  width: 280px;
  max-height: 340px;
  top: 10px;
  left: 50%;
  object-fit: contain;
  filter: saturate(.8) drop-shadow(0 25px 30px rgba(30,35,41,.2));
  transform: translateX(-50%);
}

.orbit-note {
  position: absolute;
  z-index: 3;
  display: grid;
  min-width: 150px;
  padding: 13px 15px;
  background: rgba(255,255,255,.76);
  border: 1px solid #d0d5da;
  border-radius: 15px;
  box-shadow: var(--shadow);
  color: #6a727b;
  font-size: 11px;
  text-align: left;
  backdrop-filter: blur(14px);
}

.orbit-note strong {
  color: var(--ink);
  font-size: 15px;
}

.note-a {
  top: 54px;
  left: 0;
}

.note-b {
  right: 0;
  bottom: 58px;
}

.trust-dock {
  display: flex;
  width: fit-content;
  margin: -18px auto 0;
  padding: 8px;
  background: rgba(255,255,255,.7);
  border: 1px solid #ced3d8;
  border-radius: 999px;
  box-shadow: 0 18px 46px rgba(64,72,81,.11);
}

.trust-dock span {
  padding: 10px 20px;
  color: #58616b;
  font-size: 12px;
  font-weight: 800;
}

.trust-dock span + span {
  border-left: 1px solid #d2d7dc;
}

.section {
  padding: 92px 0;
}

.section-white {
  background: rgba(255,255,255,.72);
  border-block: 1px solid #d8dde1;
}

.section-dark {
  color: #f4f5f6;
  background:
    radial-gradient(circle at 80% 10%, rgba(255,255,255,.08), transparent 28rem),
    #1d2228;
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 50px;
  margin-bottom: 42px;
}

.section-head.center {
  display: block;
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
}

.section-head h2 {
  max-width: 750px;
  margin: 0;
  font-size: clamp(32px, 4.5vw, 52px);
  line-height: 1.13;
  letter-spacing: -.045em;
}

.section-head p {
  max-width: 430px;
  margin: 0;
  color: var(--muted);
}

.section-head.center p {
  margin: 14px auto 0;
}

.section-dark .section-head p {
  color: #a5acb4;
}

.metrics-shelf {
  display: flex;
  align-items: stretch;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 32px;
  box-shadow: var(--shadow);
}

.metric {
  position: relative;
  flex: 1;
  padding: 32px;
}

.metric + .metric {
  border-left: 1px solid #d8dce0;
}

.metric strong {
  display: block;
  font-size: 32px;
  letter-spacing: -.04em;
}

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

.data-note {
  margin: 11px 0 0;
  color: #858c94;
  font-size: 11px;
  text-align: right;
}

.bento {
  display: grid;
  grid-template-columns: 1.18fr .82fr;
  grid-template-rows: repeat(2, minmax(220px, auto));
  gap: 18px;
}

.bento-item {
  position: relative;
  overflow: hidden;
  padding: 34px;
  background: rgba(255,255,255,.78);
  border: 1px solid #cfd4d9;
  border-radius: 30px;
  box-shadow: 0 18px 50px rgba(57,65,73,.09);
}

.bento-main {
  display: flex;
  min-height: 470px;
  flex-direction: column;
  grid-row: 1 / 3;
}

.bento-main::after {
  position: absolute;
  width: 380px;
  height: 230px;
  right: -90px;
  bottom: -75px;
  content: "";
  background: var(--metal);
  border-radius: 60% 40% 55% 45%;
  transform: rotate(-12deg);
}

.bento-index {
  color: #9299a1;
  font-family: Consolas, monospace;
  font-size: 11px;
}

.bento-item h3 {
  margin: 34px 0 10px;
  font-size: 25px;
}

.bento-main h3 {
  margin-top: auto;
  font-size: 36px;
}

.bento-item p {
  position: relative;
  z-index: 2;
  max-width: 570px;
  margin: 0;
  color: var(--muted);
}

.route-track {
  position: relative;
  display: grid;
  padding: 46px 0 12px;
  grid-template-columns: repeat(5, 1fr);
}

.route-track::before {
  position: absolute;
  height: 2px;
  top: 64px;
  right: 8%;
  left: 8%;
  content: "";
  background: linear-gradient(90deg, #66717c, #fff, #8b949d);
}

.route {
  position: relative;
  z-index: 2;
  text-align: center;
}

.route-dot {
  width: 38px;
  height: 38px;
  margin: 0 auto 18px;
  background: var(--metal);
  border: 1px solid #fff;
  border-radius: 50%;
  box-shadow: 0 8px 20px rgba(0,0,0,.2);
}

.route strong {
  display: block;
}

.route small {
  display: block;
  color: #aeb4ba;
}

.route em {
  display: inline-block;
  margin-top: 7px;
  padding: 3px 8px;
  color: #1d2228;
  background: #e6e9eb;
  border-radius: 999px;
  font-size: 10px;
  font-style: normal;
  font-weight: 900;
}

.network-image {
  width: min(700px, 100%);
  margin: 46px auto 0;
  padding: 12px;
  background: var(--metal);
  border-radius: 44% 56% 48% 52% / 53% 42% 58% 47%;
  box-shadow: var(--shadow);
}

.network-image img {
  width: 100%;
  max-height: 310px;
  object-fit: cover;
  border-radius: inherit;
  filter: grayscale(.6) contrast(1.05);
}

.review-ribbon {
  display: grid;
  gap: 16px;
}

.review {
  display: grid;
  min-height: 130px;
  align-items: center;
  padding: 24px 30px;
  background: rgba(255,255,255,.76);
  border: 1px solid #d2d7dc;
  border-radius: 26px 26px 8px 26px;
  grid-template-columns: 120px 1fr 190px;
  gap: 28px;
}

.review:nth-child(even) {
  margin-left: 8%;
  border-radius: 26px 26px 26px 8px;
}

.stars {
  color: #d59a25;
  letter-spacing: 2px;
}

.review blockquote {
  margin: 0;
  color: #4f5862;
}

.review-user {
  color: #848b93;
  font-size: 11px;
  text-align: right;
}

.review-user strong {
  display: block;
  color: var(--ink);
}

.plan-bands {
  display: grid;
  gap: 14px;
}

.plan-band {
  position: relative;
  display: grid;
  min-height: 130px;
  align-items: center;
  padding: 24px 28px;
  background: rgba(255,255,255,.78);
  border: 1px solid #cfd4d9;
  border-radius: 24px;
  grid-template-columns: 1fr .8fr 1.4fr 180px;
  gap: 28px;
}

.plan-band.featured {
  color: #fff;
  background: #20252b;
  border-color: #20252b;
  box-shadow: var(--shadow);
}

.plan-band h3 {
  margin: 0;
}

.plan-price {
  font-size: 31px;
  font-weight: 900;
}

.plan-price small {
  color: var(--muted);
  font-size: 11px;
  font-weight: 500;
}

.featured .plan-price small {
  color: #abb1b7;
}

.plan-features {
  color: var(--muted);
  font-size: 12px;
}

.featured .plan-features {
  color: #b8bec4;
}

.plan-band .button {
  width: 100%;
}

.faq-manual {
  display: grid;
  align-items: start;
  grid-template-columns: 280px 1fr;
  gap: 52px;
}

.manual-index {
  position: sticky;
  top: 105px;
  padding: 24px;
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  border-radius: 24px;
}

.manual-index strong {
  display: block;
  margin-bottom: 16px;
}

.manual-index a {
  display: block;
  padding: 8px 0;
  color: var(--muted);
  font-size: 12px;
}

.manual-content {
  display: grid;
  gap: 14px;
}

.manual-entry {
  padding: 28px;
  background: rgba(255,255,255,.76);
  border: 1px solid var(--line);
  border-radius: 24px;
}

.manual-entry span {
  color: #9ba1a8;
  font-family: Consolas, monospace;
  font-size: 11px;
}

.manual-entry h3 {
  margin: 14px 0 9px;
}

.manual-entry p,
.manual-entry li {
  color: var(--muted);
  font-size: 13px;
}

.inner-hero {
  padding: 80px 0 50px;
}

.inner-hero h1 {
  max-width: 900px;
  font-size: clamp(45px, 6vw, 76px);
}

.inner-hero p {
  max-width: 680px;
  margin: 20px auto 0;
  color: var(--muted);
  text-align: center;
}

.inner-art {
  width: min(620px, 95%);
  height: 330px;
  margin: 28px auto 0;
  padding: 16px;
  background: var(--metal);
  border-radius: 56% 44% 58% 42% / 42% 59% 41% 58%;
  box-shadow: var(--shadow);
}

.inner-art img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: inherit;
}

.device-dock {
  display: grid;
  margin-bottom: 25px;
  padding: 9px;
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  border-radius: 999px;
  grid-template-columns: repeat(3, 1fr);
}

.device-dock a {
  padding: 12px;
  color: var(--muted);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  text-align: center;
}

.device-dock a:hover {
  color: #fff;
  background: var(--ink);
}

.release-panels {
  display: grid;
  gap: 18px;
}

.release {
  display: grid;
  min-height: 210px;
  align-items: center;
  padding: 30px;
  background: rgba(255,255,255,.78);
  border: 1px solid var(--line);
  border-radius: 34px;
  grid-template-columns: 90px 1fr 210px;
  gap: 28px;
}

.release-icon {
  display: grid;
  width: 76px;
  height: 76px;
  place-items: center;
  background: var(--metal);
  border: 1px solid #fff;
  border-radius: 58% 42% 62% 38%;
  box-shadow: 0 12px 28px rgba(56,64,72,.15);
  font-size: 24px;
  font-weight: 900;
}

.release h3 {
  margin: 0;
  font-size: 24px;
}

.release p {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.release .button {
  width: 100%;
}

.install-flow {
  display: flex;
  align-items: stretch;
  gap: 12px;
}

.install-step {
  position: relative;
  min-height: 220px;
  padding: 27px;
  background: rgba(255,255,255,.75);
  border: 1px solid var(--line);
  border-radius: 28px;
  flex: 1;
}

.install-step + .install-step::before {
  position: absolute;
  top: 50%;
  left: -13px;
  color: #8d949b;
  content: "→";
  transform: translateY(-50%);
}

.install-step b {
  color: #959ca3;
  font-family: Consolas, monospace;
  font-size: 11px;
}

.install-step h3 {
  margin: 38px 0 8px;
}

.install-step p {
  color: var(--muted);
  font-size: 13px;
}

.diagnostic {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.diagnostic-card {
  min-height: 250px;
  padding: 30px;
  background: rgba(255,255,255,.76);
  border: 1px solid var(--line);
  border-radius: 36px 16px 36px 16px;
}

.diagnostic-card:nth-child(even) {
  border-radius: 16px 36px 16px 36px;
}

.diagnostic-card h3 {
  margin: 28px 0 8px;
}

.diagnostic-card p,
.diagnostic-card li {
  color: var(--muted);
}

.article {
  max-width: 850px;
  margin-inline: auto;
}

.article h2 {
  margin: 46px 0 12px;
  font-size: 29px;
}

.article h3 {
  margin: 27px 0 8px;
}

.article p,
.article li {
  color: var(--muted);
}

.notice {
  margin: 27px 0;
  padding: 21px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px 26px 8px 26px;
}

.cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 40px 44px;
  color: #fff;
  background:
    radial-gradient(circle at 85% 0, rgba(255,255,255,.18), transparent 18rem),
    #20252b;
  border-radius: 40px 14px 40px 14px;
  box-shadow: var(--shadow);
}

.cta h2 {
  margin: 0;
}

.cta p {
  margin: 5px 0 0;
  color: #b5bbc1;
}

.footer {
  margin-top: 88px;
  padding: 56px 0 22px;
  color: #7f8790;
  background: #dfe3e6;
  border-top: 1px solid #c9ced3;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 42px;
}

.footer p {
  max-width: 350px;
  font-size: 12px;
}

.footer h3 {
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 13px;
}

.footer-links {
  display: grid;
  gap: 8px;
  font-size: 12px;
}

.footer-links a:hover {
  color: var(--ink);
}

.copyright {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid #c8cdd2;
  font-size: 11px;
}

@media (max-width: 960px) {
  .menu {
    display: block;
  }

  .navlinks {
    position: absolute;
    top: 76px;
    right: 24px;
    left: 24px;
    display: none;
    padding: 16px;
    background: #f4f5f6;
    border: 1px solid var(--line);
    border-radius: 24px;
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .navlinks.open {
    display: flex;
  }

  .navlinks a {
    padding: 8px;
  }

  .language,
  .nav-actions > .button {
    display: none;
  }

  .bento {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .bento-main {
    min-height: 380px;
    grid-row: auto;
  }

  .route-track {
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
  }

  .route-track::before {
    display: none;
  }

  .route:nth-child(n+4) {
    grid-row: 2;
  }

  .plan-band {
    grid-template-columns: 1fr .8fr 1.2fr;
  }

  .plan-band .button {
    grid-column: 1 / -1;
  }
}

@media (max-width: 700px) {
  .container {
    width: min(100% - 26px, 1200px);
  }

  .hero {
    min-height: 760px;
    padding-top: 55px;
  }

  .hero h1 {
    font-size: 49px;
  }

  .liquid-stage {
    height: 350px;
  }

  .liquid-orb {
    width: 330px;
    height: 240px;
  }

  .hero-product {
    width: 230px;
  }

  .orbit-note {
    display: none;
  }

  .trust-dock {
    width: 100%;
    border-radius: 25px;
    flex-direction: column;
  }

  .trust-dock span {
    text-align: center;
  }

  .trust-dock span + span {
    border-top: 1px solid #d2d7dc;
    border-left: 0;
  }

  .section {
    padding: 66px 0;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 12px;
  }

  .metrics-shelf {
    border-radius: 25px;
    flex-direction: column;
  }

  .metric + .metric {
    border-top: 1px solid #d8dce0;
    border-left: 0;
  }

  .route-track {
    grid-template-columns: 1fr;
  }

  .route:nth-child(n+4) {
    grid-row: auto;
  }

  .review,
  .plan-band,
  .release {
    grid-template-columns: 1fr;
  }

  .review:nth-child(even) {
    margin-left: 0;
  }

  .review-user {
    text-align: left;
  }

  .faq-manual {
    grid-template-columns: 1fr;
  }

  .manual-index {
    position: static;
  }

  .device-dock {
    border-radius: 25px;
    grid-template-columns: 1fr;
  }

  .install-flow {
    flex-direction: column;
  }

  .install-step + .install-step::before {
    top: -16px;
    left: 50%;
    transform: translateX(-50%) rotate(90deg);
  }

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

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

  .cta {
    padding: 29px;
  }

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

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

  *,
  *::before,
  *::after {
    transition-duration: .01ms !important;
  }
}