:root {
  --ink: #ecffff;
  --muted: #94aeb2;
  --paper: #061012;
  --panel: rgba(10, 27, 31, 0.78);
  --panel-strong: rgba(13, 38, 45, 0.92);
  --line: rgba(99, 238, 226, 0.18);
  --line-strong: rgba(99, 238, 226, 0.42);
  --teal: #20f1df;
  --teal-dark: #00a8b6;
  --green: #7af7a2;
  --gold: #f4c96b;
  --coral: #ff6b4a;
  --violet: #8d7cff;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
  --glow: 0 0 24px rgba(32, 241, 223, 0.22);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", Arial, sans-serif;
  line-height: 1.65;
  background-image:
    linear-gradient(rgba(32, 241, 223, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(32, 241, 223, 0.045) 1px, transparent 1px),
    linear-gradient(135deg, #061012 0%, #0a1a1e 42%, #121716 100%);
  background-size: 42px 42px, 42px 42px, auto;
}

body.nav-open {
  overflow: hidden;
}

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

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

button {
  font: inherit;
}

.container {
  width: min(1160px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 20;
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(5, 14, 17, 0.86);
  border-bottom: 1px solid rgba(99, 238, 226, 0.18);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.nav-shell {
  width: min(1160px, calc(100% - 48px));
  height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

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

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(135deg, var(--teal-dark), var(--teal) 58%, var(--gold));
  font-weight: 900;
  box-shadow: var(--glow);
}

.brand-name,
.brand-sub {
  display: block;
  line-height: 1.1;
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 900;
}

.brand-sub {
  margin-top: 4px;
  color: rgba(236, 255, 255, 0.62);
  font-size: 0.78rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(236, 255, 255, 0.78);
  font-size: 0.95rem;
}

.nav-links a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border-radius: 999px;
  white-space: nowrap;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.nav-links a:hover,
.nav-links a.is-active {
  color: #051012;
  background: var(--teal);
  box-shadow: var(--glow);
}

.nav-links .nav-cta {
  margin-left: 4px;
  color: #061012;
  background: linear-gradient(135deg, var(--teal), var(--green));
  box-shadow: 0 16px 34px rgba(32, 241, 223, 0.28);
}

.nav-links .nav-cta:hover {
  transform: translateY(-1px);
  background: linear-gradient(135deg, var(--green), var(--gold));
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 999px;
  color: var(--ink);
  background: rgba(8, 24, 28, 0.76);
  box-shadow: inset 0 0 0 1px var(--line);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  border-radius: 999px;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 82svh;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 118px 0 70px;
  background: #061012;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(rgba(32, 241, 223, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(32, 241, 223, 0.1) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(90deg, #000 0%, rgba(0, 0, 0, 0.82) 52%, transparent 100%);
  opacity: 0.55;
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  z-index: 1;
  height: 42%;
  background: linear-gradient(180deg, transparent, rgba(6, 16, 18, 0.96));
  pointer-events: none;
}

.hero-bg,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-bg {
  object-fit: cover;
  object-position: center center;
  filter: saturate(1.08) contrast(1.08) brightness(0.58);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(6, 16, 18, 0.98) 0%, rgba(6, 16, 18, 0.91) 38%, rgba(6, 16, 18, 0.44) 70%, rgba(6, 16, 18, 0.78) 100%),
    linear-gradient(135deg, rgba(32, 241, 223, 0.22), transparent 38%, rgba(255, 107, 74, 0.14) 100%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 54px;
  align-items: center;
}

.hero-copy {
  max-width: 690px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
}

.hero h1 {
  margin: 0;
  max-width: 720px;
  font-size: 4rem;
  line-height: 1.08;
  font-weight: 900;
  color: #f4ffff;
  text-shadow: 0 0 28px rgba(32, 241, 223, 0.2);
}

.hero h1 span {
  display: block;
}

.hero-lead {
  max-width: 640px;
  margin: 24px 0 0;
  color: rgba(236, 255, 255, 0.78);
  font-size: 1.14rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 900;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: #061012;
  background: linear-gradient(135deg, var(--teal), var(--green));
  box-shadow: 0 18px 42px rgba(32, 241, 223, 0.28);
}

.button-primary:hover {
  background: linear-gradient(135deg, var(--green), var(--gold));
}

.button-secondary {
  color: var(--ink);
  background: rgba(8, 24, 28, 0.7);
  border: 1px solid var(--line-strong);
  box-shadow: inset 0 0 22px rgba(32, 241, 223, 0.06);
}

.button-secondary:hover {
  background: rgba(18, 46, 54, 0.88);
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 40px 0 0;
}

.hero-facts div {
  width: 178px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(8, 24, 28, 0.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero-facts dt {
  color: var(--teal);
  font-size: 1.45rem;
  line-height: 1;
  font-weight: 900;
}

.hero-facts dd {
  margin: 8px 0 0;
  color: rgba(236, 255, 255, 0.66);
  font-size: 0.88rem;
}

.hero-console {
  align-self: end;
  padding: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(11, 34, 40, 0.86), rgba(7, 20, 24, 0.72)),
    linear-gradient(rgba(32, 241, 223, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(32, 241, 223, 0.09) 1px, transparent 1px);
  background-size: auto, 22px 22px, 22px 22px;
  box-shadow: var(--shadow), var(--glow);
  backdrop-filter: blur(16px);
}

.console-top {
  display: grid;
  gap: 8px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.console-top span {
  color: var(--teal);
  font-size: 0.72rem;
  font-weight: 900;
}

.console-top strong {
  color: #fff;
  font-size: 1.1rem;
}

.console-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.console-grid div {
  min-height: 86px;
  padding: 14px;
  border: 1px solid rgba(99, 238, 226, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.045);
}

.console-grid span,
.console-grid strong {
  display: block;
}

.console-grid span {
  color: rgba(236, 255, 255, 0.58);
  font-size: 0.82rem;
}

.console-grid strong {
  margin-top: 10px;
  color: var(--green);
}

.statement {
  padding: 46px 0;
  background: rgba(7, 18, 21, 0.94);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.statement-grid {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 56px;
  align-items: center;
}

h2 {
  margin: 0;
  font-size: 2.35rem;
  line-height: 1.18;
  color: #f4ffff;
}

.statement-grid p:last-child,
.section-head p,
.platform-lead p,
.contact-copy p {
  margin: 0;
  color: rgba(236, 255, 255, 0.64);
  font-size: 1.02rem;
}

.section {
  padding: 94px 0;
}

.section-head {
  max-width: 790px;
  margin-bottom: 42px;
}

.section-head h2 {
  margin-bottom: 16px;
}

.section-head-wide {
  max-width: 940px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.service-card,
.ai-board article,
.platform-grid article,
.proof-list article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.service-card {
  min-height: 100%;
  padding: 28px;
}

.card-tag {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 34px;
  margin-bottom: 28px;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(135deg, var(--teal-dark), var(--teal));
  font-size: 0.8rem;
  font-weight: 900;
  box-shadow: var(--glow);
}

.service-card:nth-child(2) .card-tag {
  color: #061012;
  background: var(--green);
}

.service-card:nth-child(3) .card-tag {
  color: #061012;
  background: var(--gold);
}

.service-card:nth-child(4) .card-tag {
  background: var(--coral);
}

.service-card h3,
.ai-board h3,
.platform-lead h3,
.process-list h3,
.proof-list h3 {
  margin: 0;
  font-size: 1.18rem;
  line-height: 1.28;
}

.service-card p,
.ai-board p,
.platform-grid p,
.process-list p,
.proof-list p {
  margin: 14px 0 0;
  color: rgba(236, 255, 255, 0.62);
  font-size: 0.96rem;
}

.service-card ul {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.service-card li {
  position: relative;
  padding-left: 18px;
  color: rgba(236, 255, 255, 0.82);
  font-size: 0.94rem;
}

.service-card li::before {
  content: "";
  position: absolute;
  top: 0.78em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--teal);
  box-shadow: 0 0 12px rgba(32, 241, 223, 0.55);
}

.ai-section {
  color: #fff;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(32, 241, 223, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(32, 241, 223, 0.055) 1px, transparent 1px),
    linear-gradient(135deg, #061012, #0a2730 52%, #151716);
  background-size: 36px 36px, 36px 36px, auto;
}

.ai-section .section-head p {
  color: rgba(255, 255, 255, 0.72);
}

.ai-layout {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 50px;
  align-items: start;
}

.ai-board {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.ai-board article {
  min-height: 190px;
  padding: 26px;
  color: #fff;
  border-color: rgba(99, 238, 226, 0.22);
  background:
    linear-gradient(180deg, rgba(16, 48, 56, 0.84), rgba(8, 24, 29, 0.76));
  box-shadow: var(--shadow), inset 0 0 40px rgba(32, 241, 223, 0.045);
}

.ai-board span {
  display: inline-flex;
  margin-bottom: 34px;
  padding: 7px 12px;
  border-radius: 999px;
  color: #061012;
  background: var(--teal);
  box-shadow: var(--glow);
  font-size: 0.82rem;
  font-weight: 900;
}

.ai-board p {
  color: rgba(255, 255, 255, 0.72);
}

.platform-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 42px;
  align-items: start;
}

.platform-lead {
  position: sticky;
  top: 112px;
  padding: 32px;
  border-left: 4px solid var(--teal);
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-radius: 0 8px 8px 0;
}

.platform-lead p {
  margin-top: 14px;
}

.text-link {
  display: inline-flex;
  margin-top: 24px;
  color: var(--teal);
  font-weight: 900;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.platform-grid article {
  padding: 24px;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.platform-grid article:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow), var(--glow);
}

.platform-grid span {
  display: block;
  color: var(--teal);
  font-weight: 900;
}

.process-section {
  background:
    linear-gradient(135deg, rgba(12, 32, 37, 0.94), rgba(6, 16, 18, 0.98)),
    var(--paper);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.process-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  overflow: hidden;
  border-radius: 8px;
  list-style: none;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.process-list li {
  min-height: 230px;
  padding: 28px;
  background: rgba(8, 24, 29, 0.82);
}

.process-list span {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  margin-bottom: 34px;
  border-radius: 999px;
  color: #061012;
  background: var(--teal);
  font-weight: 900;
  box-shadow: var(--glow);
}

.process-list li:nth-child(2) span {
  background: var(--green);
}

.process-list li:nth-child(3) span {
  background: var(--gold);
}

.process-list li:nth-child(4) span {
  background: var(--coral);
}

.process-list li:nth-child(5) span {
  background: var(--violet);
}

.proof-section {
  background: #061012;
}

.proof-grid {
  display: grid;
  grid-template-columns: 0.62fr 1.38fr;
  gap: 46px;
}

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

.proof-list article {
  padding: 28px;
}

.contact-section {
  padding: 96px 0;
  color: #fff;
  background:
    linear-gradient(rgba(32, 241, 223, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(32, 241, 223, 0.06) 1px, transparent 1px),
    linear-gradient(135deg, #061012, #0b2930 58%, #231a16);
  background-size: 38px 38px, 38px 38px, auto;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.contact-copy p {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.72);
}

.contact-panel {
  padding: 30px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(8, 24, 29, 0.8);
  box-shadow: var(--shadow), var(--glow);
  backdrop-filter: blur(16px);
}

.contact-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
}

.contact-tab {
  min-height: 40px;
  border: 0;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.76);
  background: transparent;
  cursor: pointer;
  font-weight: 900;
}

.contact-tab.is-active {
  color: #061012;
  background: var(--teal);
  box-shadow: var(--glow);
}

.contact-note {
  min-height: 82px;
  margin: 22px 0 0;
  padding: 20px;
  border-left: 4px solid var(--gold);
  color: rgba(255, 255, 255, 0.84);
  background: rgba(255, 255, 255, 0.06);
}

.contact-lines {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.contact-lines div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
}

.contact-lines span {
  color: rgba(255, 255, 255, 0.62);
}

.contact-lines strong {
  max-width: 72%;
  text-align: right;
  color: #fff;
}

.contact-button {
  width: 100%;
  margin-top: 28px;
}

.site-footer {
  padding: 26px 0;
  color: rgba(255, 255, 255, 0.68);
  background: #0b1210;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  font-size: 0.9rem;
}

@media (max-width: 1080px) {
  .hero h1 {
    font-size: 3.35rem;
  }

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

  .hero-console {
    max-width: 520px;
  }

  .service-grid,
  .process-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-list li {
    min-height: 190px;
  }

  .statement-grid,
  .ai-layout,
  .platform-layout,
  .proof-grid,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .platform-lead {
    position: static;
  }

  .proof-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 820px) {
  .container,
  .nav-shell {
    width: min(100% - 32px, 1160px);
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    inset: 76px 16px auto 16px;
    display: grid;
    gap: 8px;
    padding: 18px;
    border: 1px solid var(--line-strong);
    border-radius: 8px;
    color: var(--ink);
    background: rgba(6, 16, 18, 0.94);
    box-shadow: var(--shadow), var(--glow);
    transform: translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease;
    backdrop-filter: blur(18px);
  }

  .nav-links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    min-height: 46px;
    justify-content: flex-start;
    color: var(--ink);
  }

  .nav-links .nav-cta {
    justify-content: center;
    color: #061012;
  }

  .hero {
    min-height: 78svh;
    padding: 102px 0 50px;
  }

  .hero-bg {
    object-position: 62% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(6, 16, 18, 0.98) 0%, rgba(6, 16, 18, 0.86) 62%, rgba(6, 16, 18, 0.62) 100%),
      linear-gradient(180deg, rgba(6, 16, 18, 0.36), rgba(6, 16, 18, 0.98) 100%);
  }

  .hero h1 {
    font-size: 2.55rem;
  }

  h2 {
    font-size: 1.9rem;
  }

  .section {
    padding: 72px 0;
  }

  .service-grid,
  .ai-board,
  .platform-grid,
  .process-list,
  .proof-list {
    grid-template-columns: 1fr;
  }

  .hero-console {
    display: none;
  }

  .footer-inner {
    display: grid;
  }
}

@media (max-width: 520px) {
  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .brand-name {
    font-size: 0.98rem;
  }

  .brand-sub {
    font-size: 0.72rem;
  }

  .hero {
    min-height: 76svh;
    padding-top: 92px;
    padding-bottom: 34px;
  }

  .hero h1 {
    font-size: 2.06rem;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .hero-actions {
    margin-top: 24px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-facts {
    gap: 10px;
    margin-top: 28px;
  }

  .hero-facts div {
    width: 100%;
    padding: 13px 16px;
  }

  .hero-facts dt {
    font-size: 1.28rem;
  }

  .hero-facts dd {
    margin-top: 4px;
  }

  .service-card,
  .platform-lead,
  .contact-panel,
  .proof-list article,
  .platform-grid article,
  .process-list li,
  .ai-board article {
    padding: 22px;
  }

  .contact-tabs {
    grid-template-columns: 1fr;
    border-radius: 8px;
  }

  .contact-tab {
    border-radius: 6px;
  }

  .contact-lines div {
    display: grid;
    gap: 6px;
  }

  .contact-lines strong {
    max-width: none;
    text-align: left;
  }
}