:root {
      --bg: #020817;
      --bg2: #031735;
      --blue: #1e88ff;
      --cyan: #00eaff;
      --cyan2: #72f7ff;
      --purple: #7c4dff;
      --green: #38ffbd;
      --white: #ffffff;
      --text: #ecf8ff;
      --muted: #9eb6d4;
      --card: rgba(255,255,255,.075);
      --card2: rgba(255,255,255,.12);
      --line: rgba(114,247,255,.22);
      --shadow: 0 30px 90px rgba(0, 234, 255, .16);
      --radius: 28px;
      --max: 1200px;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      min-height: 100vh;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(0,234,255,.22), transparent 30%),
        radial-gradient(circle at 88% 18%, rgba(124,77,255,.22), transparent 28%),
        radial-gradient(circle at 50% 86%, rgba(30,136,255,.24), transparent 32%),
        linear-gradient(180deg, #020817 0%, #03142f 46%, #010511 100%);
      overflow-x: hidden;
      line-height: 1.7;
    }

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

    button {
      font: inherit;
    }

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

    ::selection {
      background: rgba(0,234,255,.35);
      color: #fff;
    }

    #particleCanvas {
      position: fixed;
      inset: 0;
      width: 100%;
      height: 100%;
      z-index: -5;
      pointer-events: none;
      opacity: .85;
    }

    .fx-grid {
      position: fixed;
      inset: 0;
      z-index: -4;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(114,247,255,.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(114,247,255,.06) 1px, transparent 1px);
      background-size: 58px 58px;
      mask-image: linear-gradient(to bottom, transparent 0%, black 10%, black 80%, transparent 100%);
      animation: gridMove 16s linear infinite;
    }

    @keyframes gridMove {
      from { transform: translateY(0); }
      to { transform: translateY(58px); }
    }

    .fx-scan {
      position: fixed;
      inset: 0;
      z-index: -3;
      pointer-events: none;
      background: linear-gradient(to bottom, transparent 0%, rgba(0,234,255,.055) 50%, transparent 100%);
      height: 260px;
      animation: scan 7s ease-in-out infinite;
      opacity: .8;
    }

    @keyframes scan {
      0% { transform: translateY(-280px); }
      100% { transform: translateY(calc(100vh + 280px)); }
    }

    .noise {
      position: fixed;
      inset: 0;
      z-index: -2;
      pointer-events: none;
      opacity: .08;
      background-image:
        repeating-radial-gradient(circle at 20% 30%, rgba(255,255,255,.8) 0 1px, transparent 1px 3px);
      mix-blend-mode: screen;
    }

    .orb {
      position: fixed;
      border-radius: 999px;
      filter: blur(30px);
      z-index: -1;
      pointer-events: none;
      opacity: .45;
      animation: floatOrb 9s ease-in-out infinite;
    }

    .orb-1 {
      width: 460px;
      height: 460px;
      left: -180px;
      top: 180px;
      background: rgba(0,234,255,.34);
    }

    .orb-2 {
      width: 520px;
      height: 520px;
      right: -240px;
      top: 540px;
      background: rgba(30,136,255,.38);
      animation-delay: -3s;
    }

    .orb-3 {
      width: 360px;
      height: 360px;
      left: 42%;
      bottom: -180px;
      background: rgba(124,77,255,.32);
      animation-delay: -6s;
    }

    @keyframes floatOrb {
      0%, 100% { transform: translate3d(0,0,0) scale(1); }
      50% { transform: translate3d(28px,-22px,0) scale(1.08); }
    }

    .container {
      width: min(calc(100% - 42px), var(--max));
      margin: 0 auto;
    }

    .nav {
      position: sticky;
      top: 0;
      z-index: 100;
      backdrop-filter: blur(18px);
      background: rgba(2, 8, 23, .68);
      border-bottom: 1px solid rgba(114,247,255,.16);
      box-shadow: 0 16px 60px rgba(0,0,0,.18);
    }

    .nav::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -1px;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(0,234,255,.9), rgba(124,77,255,.75), transparent);
      animation: navLaser 4s linear infinite;
    }

    @keyframes navLaser {
      0% { opacity: .2; transform: translateX(-15%); }
      50% { opacity: 1; }
      100% { opacity: .2; transform: translateX(15%); }
    }

    .nav-inner {
      height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 26px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 13px;
      font-weight: 900;
      font-size: 23px;
      letter-spacing: .2px;
    }

    .brand-mark {
      width: 46px;
      height: 46px;
      border-radius: 16px;
      position: relative;
      display: grid;
      place-items: center;
      background:
        radial-gradient(circle at 32% 28%, #fff, transparent 16%),
        linear-gradient(135deg, #1e88ff, #00eaff 58%, #7c4dff);
      box-shadow:
        0 0 0 1px rgba(255,255,255,.15) inset,
        0 0 28px rgba(0,234,255,.42),
        0 18px 44px rgba(30,136,255,.28);
      overflow: hidden;
    }

    .brand-mark::before {
      content: "";
      width: 24px;
      height: 24px;
      border: 3px solid #fff;
      border-left-color: transparent;
      border-bottom-color: rgba(255,255,255,.45);
      border-radius: 50%;
      transform: rotate(-35deg);
      filter: drop-shadow(0 0 8px rgba(255,255,255,.9));
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: -40%;
      background: linear-gradient(120deg, transparent 35%, rgba(255,255,255,.5), transparent 65%);
      transform: translateX(-80%) rotate(12deg);
      animation: logoShine 3.6s ease-in-out infinite;
    }

    @keyframes logoShine {
      0%, 45% { transform: translateX(-90%) rotate(12deg); }
      70%, 100% { transform: translateX(90%) rotate(12deg); }
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      color: #dcefff;
      font-size: 15px;
    }

    .nav-links a:not(.nav-cta) {
      position: relative;
      opacity: .86;
      transition: .2s ease;
    }

    .nav-links a:not(.nav-cta)::after {
      content: "";
      position: absolute;
      left: 0;
      right: 100%;
      bottom: -8px;
      height: 2px;
      background: linear-gradient(90deg, var(--cyan), var(--purple));
      transition: .22s ease;
      box-shadow: 0 0 12px rgba(0,234,255,.7);
    }

    .nav-links a:not(.nav-cta):hover {
      opacity: 1;
      color: var(--cyan2);
    }

    .nav-links a:not(.nav-cta):hover::after {
      right: 0;
    }

    .nav-cta {
      min-height: 44px;
      padding: 0 18px;
      border-radius: 999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      background:
        linear-gradient(135deg, rgba(30,136,255,1), rgba(0,234,255,1));
      box-shadow: 0 0 28px rgba(0,234,255,.34);
    }

    .menu-btn {
      display: none;
      width: 46px;
      height: 46px;
      border: 1px solid rgba(114,247,255,.22);
      border-radius: 16px;
      background: rgba(255,255,255,.06);
      color: #fff;
      cursor: pointer;
      font-size: 24px;
    }

    .hero {
      position: relative;
      padding: 92px 0 82px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.03fr .97fr;
      gap: 54px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #c8f8ff;
      padding: 9px 15px;
      border-radius: 999px;
      border: 1px solid rgba(114,247,255,.26);
      background: rgba(0,234,255,.08);
      box-shadow: 0 0 36px rgba(0,234,255,.08) inset;
      margin-bottom: 26px;
      font-size: 14px;
    }

    .eyebrow-dot {
      width: 9px;
      height: 9px;
      border-radius: 999px;
      background: var(--green);
      box-shadow: 0 0 16px var(--green), 0 0 34px rgba(56,255,189,.5);
    }

    h1 {
      font-size: clamp(44px, 6.5vw, 82px);
      line-height: 1.02;
      letter-spacing: -2.4px;
      margin-bottom: 26px;
    }

    .gradient-text {
      color: transparent;
      background:
        linear-gradient(100deg, #fff 0%, #72f7ff 38%, #1e88ff 64%, #b59cff 100%);
      -webkit-background-clip: text;
      background-clip: text;
      filter: drop-shadow(0 0 18px rgba(0,234,255,.25));
    }

    .hero-desc {
      color: #bfd2ea;
      font-size: 18px;
      max-width: 680px;
      margin-bottom: 36px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 15px;
      margin-bottom: 34px;
    }

    .btn {
      min-height: 56px;
      padding: 0 25px;
      border-radius: 999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      border: 1px solid transparent;
      font-weight: 900;
      position: relative;
      overflow: hidden;
      transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
      white-space: nowrap;
    }

    .btn::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, transparent, rgba(255,255,255,.32), transparent);
      transform: translateX(-130%);
      transition: .48s ease;
    }

    .btn:hover::before {
      transform: translateX(130%);
    }

    .btn-primary {
      background: linear-gradient(135deg, #1e88ff, #00eaff);
      box-shadow:
        0 0 32px rgba(0,234,255,.25),
        0 18px 46px rgba(30,136,255,.28);
    }

    .btn-secondary {
      border-color: rgba(114,247,255,.25);
      background: rgba(255,255,255,.06);
      backdrop-filter: blur(12px);
      color: #e8f9ff;
    }

    .btn:hover {
      transform: translateY(-3px);
      box-shadow: 0 20px 60px rgba(0,234,255,.24);
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      max-width: 720px;
    }

    .metric {
      padding: 17px 16px;
      border-radius: 22px;
      background: rgba(255,255,255,.065);
      border: 1px solid rgba(114,247,255,.16);
      position: relative;
      overflow: hidden;
    }

    .metric::before {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(114,247,255,.7), transparent);
    }

    .metric strong {
      display: block;
      font-size: 19px;
      color: #fff;
      margin-bottom: 2px;
    }

    .metric span {
      color: #9fb7d3;
      font-size: 13px;
    }

    .hero-visual {
      min-height: 640px;
      position: relative;
      display: grid;
      place-items: center;
      perspective: 1200px;
    }

    .halo {
      position: absolute;
      width: 560px;
      height: 560px;
      border-radius: 50%;
      background:
        conic-gradient(from 0deg, transparent, rgba(0,234,255,.36), transparent, rgba(124,77,255,.32), transparent);
      filter: blur(.2px);
      opacity: .82;
      animation: rotate 14s linear infinite;
      mask: radial-gradient(circle, transparent 45%, #000 46%, #000 52%, transparent 53%);
    }

    .halo.h2 {
      width: 430px;
      height: 430px;
      animation-duration: 9s;
      animation-direction: reverse;
      opacity: .65;
      mask: radial-gradient(circle, transparent 39%, #000 40%, #000 43%, transparent 44%);
    }

    @keyframes rotate {
      to { transform: rotate(360deg); }
    }

    .phone-stage {
      position: relative;
      transform-style: preserve-3d;
      animation: phoneFloat 6s ease-in-out infinite;
    }

    @keyframes phoneFloat {
      0%, 100% { transform: translateY(0) rotateX(8deg) rotateY(-14deg); }
      50% { transform: translateY(-18px) rotateX(5deg) rotateY(-10deg); }
    }

    .phone {
      width: min(370px, 88vw);
      min-height: 660px;
      padding: 16px;
      border-radius: 48px;
      background:
        linear-gradient(145deg, rgba(255,255,255,.34), rgba(255,255,255,.06));
      border: 1px solid rgba(255,255,255,.25);
      box-shadow:
        0 40px 100px rgba(0,0,0,.36),
        0 0 70px rgba(0,234,255,.18);
      backdrop-filter: blur(18px);
      position: relative;
      overflow: hidden;
    }

    .phone::before {
      content: "";
      position: absolute;
      inset: -2px;
      border-radius: 48px;
      background: linear-gradient(120deg, rgba(0,234,255,.5), transparent, rgba(124,77,255,.45));
      z-index: -1;
      filter: blur(8px);
      opacity: .9;
    }

    .screen {
      min-height: 628px;
      border-radius: 36px;
      overflow: hidden;
      border: 1px solid rgba(114,247,255,.2);
      background:
        radial-gradient(circle at 18% 10%, rgba(0,234,255,.2), transparent 28%),
        linear-gradient(180deg, #062b63 0%, #05142b 100%);
      padding: 19px;
      position: relative;
    }

    .screen::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(115deg, transparent 0%, rgba(255,255,255,.08) 45%, transparent 55%),
        repeating-linear-gradient(to bottom, rgba(255,255,255,.035) 0 1px, transparent 1px 6px);
      pointer-events: none;
      opacity: .52;
    }

    .screen > * {
      position: relative;
      z-index: 2;
    }

    .screen-status {
      display: flex;
      align-items: center;
      justify-content: space-between;
      color: #dff8ff;
      font-size: 12px;
      margin-bottom: 18px;
    }

    .screen-header {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 14px;
      border-radius: 24px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.1);
      margin-bottom: 18px;
    }

    .avatar {
      width: 46px;
      height: 46px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      font-weight: 950;
      color: #fff;
      background: linear-gradient(135deg, #1e88ff, #00eaff);
      box-shadow: 0 0 24px rgba(0,234,255,.35);
    }

    .screen-header strong {
      display: block;
      font-size: 15px;
      line-height: 1.25;
    }

    .screen-header span {
      display: flex;
      align-items: center;
      gap: 7px;
      color: #a6d7f2;
      font-size: 12px;
      margin-top: 4px;
    }

    .live-dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 12px var(--green);
    }

    .chat {
      display: grid;
      gap: 13px;
    }

    .bubble {
      width: fit-content;
      max-width: 86%;
      padding: 13px 14px;
      border-radius: 18px;
      font-size: 13px;
      line-height: 1.55;
      color: #eefaff;
      box-shadow: 0 16px 28px rgba(0,0,0,.16);
    }

    .bubble.left {
      background: rgba(255,255,255,.1);
      border: 1px solid rgba(255,255,255,.08);
      border-top-left-radius: 7px;
    }

    .bubble.right {
      justify-self: end;
      background: linear-gradient(135deg, rgba(30,136,255,.95), rgba(0,234,255,.88));
      border-top-right-radius: 7px;
    }

    .media {
      width: 178px;
      height: 104px;
      border-radius: 18px;
      margin-top: 9px;
      position: relative;
      overflow: hidden;
      background:
        radial-gradient(circle at 30% 30%, rgba(255,255,255,.55), transparent 10%),
        linear-gradient(135deg, rgba(0,234,255,.45), rgba(124,77,255,.32)),
        repeating-linear-gradient(45deg, rgba(255,255,255,.09), rgba(255,255,255,.09) 8px, transparent 8px, transparent 17px);
      border: 1px solid rgba(255,255,255,.16);
      display: grid;
      place-items: center;
      font-weight: 900;
    }

    .media::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, transparent, rgba(255,255,255,.2), transparent);
      transform: translateX(-100%);
      animation: mediaScan 2.8s ease-in-out infinite;
    }

    @keyframes mediaScan {
      0%, 35% { transform: translateX(-105%); }
      80%, 100% { transform: translateX(105%); }
    }

    .key-panel {
      margin-top: 20px;
      padding: 16px;
      border-radius: 24px;
      background: rgba(0,234,255,.09);
      border: 1px solid rgba(114,247,255,.22);
      box-shadow: 0 0 28px rgba(0,234,255,.08) inset;
    }

    .key-panel-top {
      display: flex;
      justify-content: space-between;
      gap: 10px;
      font-size: 12px;
      color: #dffbff;
      margin-bottom: 11px;
    }

    .hash {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      color: #9ff9ff;
      font-size: 12px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      border-radius: 12px;
      padding: 9px 10px;
      background: rgba(0,0,0,.18);
    }

    .signal-lines {
      position: absolute;
      inset: auto -90px 115px -90px;
      height: 230px;
      pointer-events: none;
      opacity: .88;
      transform: translateZ(-80px);
    }

    .signal-line {
      position: absolute;
      height: 2px;
      background: linear-gradient(90deg, transparent, rgba(0,234,255,.95), transparent);
      box-shadow: 0 0 18px rgba(0,234,255,.72);
      animation: signal 3.8s linear infinite;
    }

    .signal-line:nth-child(1) { top: 30px; left: 0; right: 48%; animation-delay: 0s; }
    .signal-line:nth-child(2) { top: 86px; left: 54%; right: 0; animation-delay: -1s; }
    .signal-line:nth-child(3) { top: 145px; left: 8%; right: 54%; animation-delay: -2s; }
    .signal-line:nth-child(4) { top: 200px; left: 46%; right: 10%; animation-delay: -3s; }

    @keyframes signal {
      0% { opacity: .1; transform: scaleX(.25); }
      45% { opacity: 1; transform: scaleX(1); }
      100% { opacity: .1; transform: scaleX(.25); }
    }

    .floating-chip {
      position: absolute;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 13px;
      border-radius: 999px;
      background: rgba(2,8,23,.76);
      border: 1px solid rgba(114,247,255,.26);
      box-shadow: 0 16px 44px rgba(0,0,0,.24), 0 0 26px rgba(0,234,255,.14);
      color: #dffbff;
      font-size: 12px;
      backdrop-filter: blur(12px);
      z-index: 8;
      animation: chipFloat 4.8s ease-in-out infinite;
    }

    .floating-chip::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 12px var(--green);
    }

    .chip-1 { left: 10px; top: 95px; }
    .chip-2 { right: 0; top: 215px; animation-delay: -1.6s; }
    .chip-3 { left: 42px; bottom: 120px; animation-delay: -3.2s; }

    @keyframes chipFloat {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(-12px); }
    }

    .section {
      position: relative;
      padding: 88px 0;
    }

    .section-head {
      text-align: center;
      max-width: 800px;
      margin: 0 auto 48px;
    }

    .kicker {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: #7cf7ff;
      font-weight: 950;
      letter-spacing: 1.2px;
      text-transform: uppercase;
      font-size: 13px;
      margin-bottom: 13px;
    }

    .kicker::before,
    .kicker::after {
      content: "";
      width: 22px;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--cyan));
      box-shadow: 0 0 14px rgba(0,234,255,.8);
    }

    .kicker::after {
      background: linear-gradient(90deg, var(--cyan), transparent);
    }

    h2 {
      font-size: clamp(31px, 4.2vw, 52px);
      line-height: 1.16;
      letter-spacing: -1.3px;
      margin-bottom: 16px;
    }

    .section-subtitle {
      color: #adc3df;
      font-size: 17px;
    }

    .cyber-frame {
      position: relative;
      border: 1px solid rgba(114,247,255,.16);
      background: linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.045));
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .cyber-frame::before,
    .cyber-frame::after {
      content: "";
      position: absolute;
      width: 72px;
      height: 72px;
      pointer-events: none;
    }

    .cyber-frame::before {
      left: -1px;
      top: -1px;
      border-left: 2px solid rgba(0,234,255,.9);
      border-top: 2px solid rgba(0,234,255,.9);
      border-top-left-radius: inherit;
    }

    .cyber-frame::after {
      right: -1px;
      bottom: -1px;
      border-right: 2px solid rgba(124,77,255,.8);
      border-bottom: 2px solid rgba(124,77,255,.8);
      border-bottom-right-radius: inherit;
    }

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

    .feature-card {
      min-height: 278px;
      padding: 28px;
      border-radius: var(--radius);
      transition: .26s ease;
      position: relative;
      isolation: isolate;
    }

    .feature-card::after {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at var(--mx, 70%) var(--my, 20%), rgba(0,234,255,.18), transparent 32%);
      opacity: 0;
      transition: .22s ease;
      z-index: -1;
    }

    .feature-card:hover {
      transform: translateY(-7px);
      border-color: rgba(114,247,255,.35);
      background: rgba(255,255,255,.105);
    }

    .feature-card:hover::after {
      opacity: 1;
    }

    .icon {
      width: 58px;
      height: 58px;
      border-radius: 20px;
      display: grid;
      place-items: center;
      margin-bottom: 20px;
      background:
        radial-gradient(circle at 30% 20%, rgba(255,255,255,.7), transparent 17%),
        linear-gradient(135deg, #1e88ff, #00eaff 58%, #7c4dff);
      box-shadow: 0 0 30px rgba(0,234,255,.24);
      font-size: 25px;
    }

    .feature-card h3 {
      font-size: 20px;
      margin-bottom: 12px;
    }

    .feature-card p {
      color: #afc4df;
      font-size: 15px;
    }

    .architecture {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 24px;
      align-items: stretch;
    }

    .arch-visual {
      border-radius: 36px;
      padding: 32px;
      min-height: 520px;
      display: grid;
      place-items: center;
      position: relative;
    }

    .node-map {
      width: min(430px, 100%);
      aspect-ratio: 1 / 1;
      border-radius: 50%;
      position: relative;
      display: grid;
      place-items: center;
      background:
        radial-gradient(circle, rgba(0,234,255,.11), transparent 60%),
        conic-gradient(from 0deg, rgba(0,234,255,.0), rgba(0,234,255,.28), rgba(124,77,255,.24), rgba(0,234,255,.0));
      animation: rotate 20s linear infinite;
    }

    .node-map::before {
      content: "";
      position: absolute;
      inset: 12%;
      border-radius: 50%;
      border: 1px dashed rgba(114,247,255,.32);
    }

    .node-map::after {
      content: "";
      position: absolute;
      inset: 25%;
      border-radius: 50%;
      border: 1px solid rgba(124,77,255,.28);
    }

    .core-node {
      width: 118px;
      height: 118px;
      border-radius: 36px;
      display: grid;
      place-items: center;
      background:
        radial-gradient(circle at 35% 20%, rgba(255,255,255,.65), transparent 18%),
        linear-gradient(135deg, #1e88ff, #00eaff);
      box-shadow:
        0 0 0 12px rgba(0,234,255,.06),
        0 0 56px rgba(0,234,255,.36);
      font-size: 42px;
      animation: counterRotate 20s linear infinite;
    }

    @keyframes counterRotate {
      to { transform: rotate(-360deg); }
    }

    .node {
      position: absolute;
      width: 74px;
      height: 74px;
      border-radius: 24px;
      display: grid;
      place-items: center;
      background: rgba(2,8,23,.78);
      border: 1px solid rgba(114,247,255,.28);
      box-shadow: 0 0 28px rgba(0,234,255,.14);
      animation: counterRotate 20s linear infinite;
      font-weight: 950;
      color: #dffbff;
    }

    .n1 { top: 2%; left: 50%; transform-origin: center; translate: -50% 0; }
    .n2 { right: 4%; top: 50%; translate: 0 -50%; }
    .n3 { bottom: 2%; left: 50%; translate: -50% 0; }
    .n4 { left: 4%; top: 50%; translate: 0 -50%; }

    .arch-list {
      display: grid;
      gap: 15px;
    }

    .arch-item {
      border-radius: 24px;
      padding: 21px;
      display: grid;
      grid-template-columns: 48px 1fr;
      gap: 16px;
      align-items: start;
    }

    .arch-index {
      width: 48px;
      height: 48px;
      border-radius: 17px;
      display: grid;
      place-items: center;
      color: #fff;
      font-weight: 950;
      background: rgba(0,234,255,.13);
      border: 1px solid rgba(114,247,255,.22);
      box-shadow: 0 0 22px rgba(0,234,255,.1) inset;
    }

    .arch-item strong {
      display: block;
      font-size: 18px;
      margin-bottom: 5px;
    }

    .arch-item span {
      color: #aec4de;
      font-size: 14px;
    }

    .data-section {
      position: relative;
    }

    .data-panel {
      border-radius: 36px;
      padding: 34px;
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 30px;
      align-items: center;
    }

    .terminal {
      border-radius: 26px;
      background: rgba(0,0,0,.28);
      border: 1px solid rgba(114,247,255,.2);
      overflow: hidden;
      box-shadow: 0 0 34px rgba(0,234,255,.1) inset;
    }

    .terminal-top {
      height: 44px;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 0 16px;
      border-bottom: 1px solid rgba(255,255,255,.08);
      background: rgba(255,255,255,.05);
    }

    .terminal-dot {
      width: 11px;
      height: 11px;
      border-radius: 50%;
      background: #00eaff;
      box-shadow: 0 0 14px rgba(0,234,255,.7);
    }

    .terminal-dot:nth-child(2) { background: #7c4dff; box-shadow: 0 0 14px rgba(124,77,255,.7); }
    .terminal-dot:nth-child(3) { background: #38ffbd; box-shadow: 0 0 14px rgba(56,255,189,.7); }

    .terminal-body {
      padding: 20px;
      min-height: 300px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
      font-size: 13px;
      color: #a8fbff;
      overflow: hidden;
    }

    .code-line {
      display: block;
      margin-bottom: 9px;
      white-space: nowrap;
      opacity: .86;
    }

    .code-line span {
      color: #38ffbd;
    }

    .data-flow {
      display: grid;
      gap: 16px;
    }

    .flow-row {
      display: grid;
      grid-template-columns: 120px 1fr 120px;
      align-items: center;
      gap: 12px;
    }

    .flow-node {
      min-height: 74px;
      border-radius: 22px;
      background: rgba(255,255,255,.07);
      border: 1px solid rgba(114,247,255,.16);
      display: grid;
      place-items: center;
      text-align: center;
      font-weight: 900;
      color: #fff;
      padding: 12px;
    }

    .flow-line {
      height: 3px;
      border-radius: 999px;
      background: linear-gradient(90deg, rgba(0,234,255,.1), rgba(0,234,255,.95), rgba(124,77,255,.82), rgba(0,234,255,.1));
      position: relative;
      overflow: hidden;
      box-shadow: 0 0 18px rgba(0,234,255,.35);
    }

    .flow-line::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, transparent, white, transparent);
      transform: translateX(-100%);
      animation: flowPulse 2.3s ease-in-out infinite;
    }

    @keyframes flowPulse {
      to { transform: translateX(100%); }
    }

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

    .scenario {
      min-height: 234px;
      border-radius: 28px;
      padding: 25px;
      transition: .24s ease;
      position: relative;
    }

    .scenario:hover {
      transform: translateY(-6px);
      border-color: rgba(114,247,255,.35);
    }

    .scenario h3 {
      margin: 14px 0 8px;
      font-size: 18px;
    }

    .scenario p {
      color: #afc4df;
      font-size: 14px;
    }

    .steps {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
      counter-reset: step;
    }

    .step {
      counter-increment: step;
      border-radius: 30px;
      padding: 30px;
      min-height: 238px;
      position: relative;
    }

    .step::before {
      content: "0" counter(step);
      width: 54px;
      height: 54px;
      border-radius: 20px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, #1e88ff, #00eaff);
      box-shadow: 0 0 28px rgba(0,234,255,.24);
      font-weight: 950;
      margin-bottom: 20px;
    }

    .step h3 {
      font-size: 20px;
      margin-bottom: 10px;
    }

    .step p {
      color: #afc4df;
      font-size: 15px;
    }

    .download {
      padding-bottom: 100px;
    }

    .download-card {
      border-radius: 42px;
      padding: 46px;
      display: grid;
      grid-template-columns: 1fr .82fr;
      gap: 34px;
      align-items: center;
      background:
        radial-gradient(circle at 80% 20%, rgba(0,234,255,.28), transparent 35%),
        radial-gradient(circle at 28% 80%, rgba(124,77,255,.22), transparent 35%),
        linear-gradient(135deg, rgba(30,136,255,.18), rgba(255,255,255,.06));
    }

    .download-card p {
      color: #b7cae4;
      margin: 0 0 27px;
      max-width: 720px;
    }

    .store-buttons {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .store-btn {
      min-width: 190px;
      padding: 15px 18px;
      border-radius: 22px;
      background: rgba(2,8,23,.72);
      border: 1px solid rgba(114,247,255,.2);
      display: flex;
      align-items: center;
      gap: 13px;
      transition: .24s ease;
      box-shadow: 0 18px 44px rgba(0,0,0,.16);
    }

    .store-btn:hover {
      transform: translateY(-4px);
      border-color: rgba(0,234,255,.55);
      box-shadow: 0 20px 60px rgba(0,234,255,.16);
    }

    .store-icon {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, #1e88ff, #00eaff);
      font-size: 21px;
      flex: 0 0 auto;
    }

    .store-btn small {
      display: block;
      color: #9eb6d4;
      font-size: 12px;
      line-height: 1.15;
    }

    .store-btn strong {
      display: block;
      color: #fff;
      font-size: 15px;
      line-height: 1.28;
    }

    .download-visual {
      justify-self: center;
      width: min(300px, 100%);
      border-radius: 34px;
      padding: 18px;
      background: rgba(2,8,23,.42);
      border: 1px solid rgba(114,247,255,.22);
      box-shadow: 0 0 50px rgba(0,234,255,.11) inset;
      position: relative;
      overflow: hidden;
    }

    .download-visual::before {
      content: "";
      position: absolute;
      inset: -1px;
      background: conic-gradient(from 0deg, transparent, rgba(0,234,255,.38), transparent, rgba(124,77,255,.28), transparent);
      opacity: .8;
      animation: rotate 8s linear infinite;
      z-index: 0;
    }

    .download-visual-inner {
      position: relative;
      z-index: 2;
      border-radius: 26px;
      background: rgba(2,8,23,.9);
      padding: 20px;
      text-align: center;
    }

    .qr {
      width: 100%;
      aspect-ratio: 1 / 1;
      border-radius: 22px;
      background:
        linear-gradient(90deg, rgba(255,255,255,.92) 10px, transparent 10px) 0 0 / 29px 29px,
        linear-gradient(rgba(255,255,255,.92) 10px, transparent 10px) 0 0 / 29px 29px,
        #0d78ff;
      position: relative;
      overflow: hidden;
      margin-bottom: 14px;
    }

    .qr::before,
    .qr::after {
      content: "";
      position: absolute;
      background: #fff;
      border: 10px solid #020817;
      border-radius: 9px;
      width: 48px;
      height: 48px;
    }

    .qr::before {
      left: 18px;
      top: 18px;
      box-shadow:
        138px 0 0 #fff,
        138px 0 0 10px #020817,
        0 138px 0 #fff,
        0 138px 0 10px #020817;
    }

    .qr::after {
      right: 32px;
      bottom: 32px;
      width: 30px;
      height: 30px;
      border-width: 8px;
    }

    .download-visual p {
      color: #c1d8ef;
      font-size: 13px;
      margin: 0;
    }

    .notice {
      margin-top: 18px;
      color: #8da6c5 !important;
      font-size: 12px;
      max-width: 760px;
    }

    .faq-list {
      max-width: 940px;
      margin: 0 auto;
      display: grid;
      gap: 14px;
    }

    details {
      border-radius: 24px;
      padding: 0 22px;
    }

    summary {
      list-style: none;
      cursor: pointer;
      min-height: 66px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      font-weight: 900;
    }

    summary::-webkit-details-marker {
      display: none;
    }

    summary::after {
      content: "+";
      width: 30px;
      height: 30px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: rgba(0,234,255,.11);
      border: 1px solid rgba(114,247,255,.2);
      color: #72f7ff;
      flex: 0 0 auto;
    }

    details[open] summary::after {
      content: "−";
    }

    details p {
      color: #adc3df;
      padding: 0 0 22px;
      font-size: 15px;
    }

    .footer {
      border-top: 1px solid rgba(114,247,255,.12);
      background: rgba(2,8,23,.62);
      padding: 36px 0;
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      color: #8fa8c6;
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
    }

    .footer-links a {
      color: #d8efff;
      opacity: .76;
    }

    .footer-links a:hover {
      opacity: 1;
      color: #72f7ff;
    }

    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: .7s ease;
    }

    .reveal.show {
      opacity: 1;
      transform: translateY(0);
    }

    @media (max-width: 1040px) {
      .hero-grid,
      .architecture,
      .data-panel,
      .download-card {
        grid-template-columns: 1fr;
      }

      .hero-visual {
        min-height: 580px;
      }

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

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

      .download-visual {
        justify-self: start;
      }
    }

    @media (max-width: 760px) {
      .container {
        width: min(calc(100% - 28px), var(--max));
      }

      .nav-inner {
        height: 68px;
      }

      .brand {
        font-size: 21px;
      }

      .brand-mark {
        width: 42px;
        height: 42px;
        border-radius: 15px;
      }

      .menu-btn {
        display: grid;
        place-items: center;
      }

      .nav-links {
        position: absolute;
        top: 78px;
        left: 14px;
        right: 14px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 12px;
        border-radius: 24px;
        background: rgba(2,8,23,.95);
        border: 1px solid rgba(114,247,255,.2);
        box-shadow: 0 24px 70px rgba(0,0,0,.28);
      }

      .nav-links.open {
        display: flex;
      }

      .nav-links a {
        padding: 13px 14px;
        border-radius: 14px;
      }

      .nav-links a::after {
        display: none;
      }

      .nav-cta {
        margin-top: 8px;
      }

      .hero {
        padding: 56px 0 58px;
      }

      h1 {
        letter-spacing: -1.2px;
      }

      .hero-desc,
      .section-subtitle {
        font-size: 16px;
      }

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

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

      .hero-visual {
        min-height: 530px;
        perspective: none;
      }

      .phone-stage {
        animation: phoneFloatMobile 5s ease-in-out infinite;
      }

      @keyframes phoneFloatMobile {
        0%, 100% { transform: translateY(0); }
        50% { transform: translateY(-12px); }
      }

      .phone {
        width: min(338px, 92vw);
        min-height: auto;
      }

      .screen {
        min-height: 555px;
      }

      .floating-chip {
        display: none;
      }

      .halo {
        width: 420px;
        height: 420px;
      }

      .section {
        padding: 64px 0;
      }

      .features-grid,
      .scenario-grid,
      .steps {
        grid-template-columns: 1fr;
      }

      .feature-card,
      .scenario,
      .step {
        min-height: auto;
      }

      .arch-visual {
        min-height: 410px;
        padding: 20px;
      }

      .node {
        width: 58px;
        height: 58px;
        border-radius: 19px;
        font-size: 13px;
      }

      .core-node {
        width: 94px;
        height: 94px;
        border-radius: 30px;
        font-size: 34px;
      }

      .arch-item {
        grid-template-columns: 1fr;
      }

      .flow-row {
        grid-template-columns: 1fr;
      }

      .flow-line {
        height: 48px;
        width: 3px;
        justify-self: center;
        background: linear-gradient(180deg, rgba(0,234,255,.1), rgba(0,234,255,.95), rgba(124,77,255,.82), rgba(0,234,255,.1));
      }

      .flow-line::after {
        background: linear-gradient(180deg, transparent, white, transparent);
        transform: translateY(-100%);
        animation: flowPulseY 2.3s ease-in-out infinite;
      }

      @keyframes flowPulseY {
        to { transform: translateY(100%); }
      }

      .data-panel,
      .download-card {
        padding: 24px;
        border-radius: 30px;
      }

      .store-btn {
        width: 100%;
      }

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

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: .001ms !important;
        animation-iteration-count: 1 !important;
        scroll-behavior: auto !important;
      }
    }