:root {
      --bg: #f5f9ff;
      --panel: rgba(255, 255, 255, 0.72);
      --panel-strong: rgba(255, 255, 255, 0.92);
      --text: #101828;
      --muted: #667085;
      --line: rgba(47, 143, 255, 0.12);
      --primary: #2f8fff;
      --primary-2: #64c7ff;
      --deep: #0f4c97;
      --shadow: 0 24px 80px rgba(48, 111, 196, 0.14);
      --radius-xl: 32px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 14px;
      --container: 1200px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at top left, rgba(100, 199, 255, 0.22), transparent 30%),
        radial-gradient(circle at top right, rgba(47, 143, 255, 0.15), transparent 28%),
        linear-gradient(180deg, #f8fbff 0%, #f3f8ff 42%, #ffffff 100%);
      min-height: 100vh;
    }

    main {
      position: relative;
      overflow: hidden;
    }

    main::before,
    main::after {
      content: "";
      position: absolute;
      border-radius: 50%;
      pointer-events: none;
      filter: blur(30px);
      opacity: .55;
    }

    main::before {
      width: 540px;
      height: 540px;
      top: 320px;
      left: -180px;
      background: radial-gradient(circle, rgba(100,199,255,.22), transparent 68%);
    }

    main::after {
      width: 520px;
      height: 520px;
      top: 1120px;
      right: -180px;
      background: radial-gradient(circle, rgba(47,143,255,.15), transparent 70%);
    }

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

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

    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }

    .container-wide {
      width: min(1320px, calc(100% - 40px));
      margin: 0 auto;
    }

    .site-header {
      position: fixed;
      top: 16px;
      left: 50%;
      transform: translateX(-50%);
      width: min(var(--container), calc(100% - 24px));
      z-index: 40;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 14px;
      background: transparent;
      backdrop-filter: none;
      border: 0;
      box-shadow: none;
      border-radius: 999px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 700;
      color: #11243d;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background: url('./主持伴侣.png') center/contain no-repeat;
      box-shadow: 0 10px 20px rgba(47,143,255,.18);
      flex-shrink: 0;
    }

    .nav {
      display: flex;
      align-items: center;
      gap: 22px;
      color: #16263c;
      font-size: 15px;
      font-weight: 700;
    }

    .nav a {
      padding: 0;
      background: transparent;
      border: 0;
      box-shadow: none;
      color: #102033;
    }

    .nav a:hover {
      color: var(--primary);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 0 22px;
      border-radius: 999px;
      border: 1px solid transparent;
      font-weight: 600;
      cursor: pointer;
      transition: .25s ease;
      white-space: nowrap;
    }

    .btn:hover {
      transform: translateY(-1px);
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: 0 12px 28px rgba(47, 143, 255, 0.28);
    }

    .btn-secondary {
      color: var(--deep);
      background: rgba(255,255,255,0.72);
      border-color: rgba(47,143,255,0.16);
    }

    .video-overlay {
      position: fixed;
      inset: 0;
      z-index: 50;
      background: #07101f;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: opacity .7s ease, visibility .7s ease;
    }

    .video-overlay.hidden {
      opacity: 0;
      visibility: hidden;
      pointer-events: none;
    }

    .video-shell {
      position: relative;
      width: 100%;
      height: 100%;
      overflow: hidden;
      background: radial-gradient(circle at center, rgba(47,143,255,.18), transparent 35%), #050b16;
    }

    .video-shell video {
      width: 100%;
      height: 100%;
      object-fit: cover;
      opacity: .92;
    }

    .video-fallback {
      position: absolute;
      inset: 0;
      display: none;
      align-items: center;
      justify-content: center;
      background:
        radial-gradient(circle at top, rgba(100,199,255,.22), transparent 24%),
        linear-gradient(135deg, #07101f 0%, #0f4c97 100%);
      color: #fff;
      text-align: center;
      padding: 32px;
    }

    .video-fallback.show {
      display: flex;
    }

    .video-copy {
      position: absolute;
      inset: auto 0 80px 0;
      z-index: 2;
      display: grid;
      justify-items: center;
      gap: 16px;
      padding: 0 20px;
      color: #fff;
      text-align: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 14px;
      border-radius: 999px;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.18);
      backdrop-filter: blur(8px);
      font-size: 12px;
      letter-spacing: .08em;
      text-transform: uppercase;
    }

    .video-title {
      font-size: clamp(34px, 5vw, 74px);
      line-height: 1.05;
      margin: 0;
      letter-spacing: -0.04em;
    }

    .video-slogan {
      font-size: clamp(18px, 2vw, 24px);
      color: rgba(255,255,255,.86);
      min-height: 34px;
      opacity: 0;
      transform: translateY(12px);
      transition: .45s ease;
    }

    .video-slogan.show {
      opacity: 1;
      transform: translateY(0);
    }

    .skip-btn {
      position: absolute;
      top: 28px;
      right: 28px;
      z-index: 3;
      color: #fff;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.18);
      backdrop-filter: blur(10px);
    }

    .hero {
      padding: 164px 0 120px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      gap: 36px;
      align-items: center;
    }

    .hero-panel,
    .glass-card,
    .feature-card,
    .device-card,
    .update-card,
    .contact-card,
    .faq-card,
    .download-card {
      background: var(--panel);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      border: 1px solid rgba(255,255,255,.88);
      box-shadow:
        0 2px 0 rgba(255,255,255,.55) inset,
        0 20px 60px rgba(34, 95, 173, .12),
        0 6px 18px rgba(34, 95, 173, .06);
    }

    .hero-panel {
      padding: 60px 46px;
      border-radius: var(--radius-xl);
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(47,143,255,.10);
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      width: 320px;
      height: 320px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(100,199,255,.28) 0%, rgba(100,199,255,.04) 55%, transparent 68%);
      top: -100px;
      right: -80px;
      pointer-events: none;
      animation: orbDrift 8s ease-in-out infinite;
    }

    .hero-panel::after {
      content: "";
      position: absolute;
      width: 200px;
      height: 200px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(47,143,255,.18) 0%, rgba(47,143,255,.02) 60%, transparent 72%);
      bottom: -60px;
      left: -40px;
      pointer-events: none;
      animation: orbDrift 10s ease-in-out 2s infinite reverse;
    }

    @keyframes orbDrift {
      0%, 100% { transform: translate(0, 0) scale(1); }
      33% { transform: translate(12px, -14px) scale(1.08); }
      66% { transform: translate(-8px, 10px) scale(.94); }
    }

    .hero-accent {
      display: block;
      width: 56px;
      height: 4px;
      border-radius: 4px;
      background: linear-gradient(90deg, #2f8fff, #64c7ff, #a0d8ff);
      margin-bottom: 28px;
    }

    .hero h1 {
      margin: 0 0 28px;
      font-size: clamp(40px, 4.8vw, 68px);
      line-height: 1.06;
      letter-spacing: -0.05em;
      max-width: 780px;
      background: linear-gradient(135deg, #0d3b6e 0%, #1a5fb4 38%, #3584e4 100%);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-title-line {
      display: block;
      white-space: nowrap;
    }

    .hero p.lead {
      margin: 0;
      color: #4a627a;
      font-size: 16px;
      line-height: 1.9;
      max-width: 700px;
    }

    .hero-quote {
      margin: 36px 0 0;
      min-height: 100px;
      padding: 32px 36px 32px 80px;
      border-radius: 24px;
      background:
        linear-gradient(135deg, rgba(255,255,255,.9), rgba(238,248,255,.78)),
        radial-gradient(ellipse at 0% 50%, rgba(100,199,255,.2), transparent 55%);
      border: 1px solid rgba(47,143,255,.18);
      color: #0f3252;
      font-size: 24px;
      font-weight: 600;
      line-height: 1.75;
      box-shadow:
        0 20px 60px rgba(34, 95, 173, .09),
        0 4px 14px rgba(34, 95, 173, .05);
      position: relative;
      transform-origin: center;
      animation: quoteFloatIn 2.2s cubic-bezier(.16, 1, .3, 1) both, quoteBreath 5.8s ease-in-out 2.2s infinite;
    }

    .hero-quote::before {
      content: "\201C";
      position: absolute;
      left: 20px;
      top: 6px;
      font-size: 72px;
      font-weight: 900;
      line-height: 1;
      color: rgba(47,143,255,.26);
      font-family: Georgia, "Times New Roman", serif;
      pointer-events: none;
    }

    @keyframes quoteFloatIn {
      0% {
        opacity: 0;
        transform: translate3d(0, 32px, 0) scale(.92);
        filter: blur(12px);
      }
      55% {
        opacity: 1;
        filter: blur(0);
      }
      100% {
        opacity: 1;
        transform: translate3d(0, 0, 0) scale(1);
        filter: blur(0);
      }
    }

    @keyframes quoteBreath {
      0%, 100% {
        transform: translate3d(0, 0, 0) scale(1);
      }
      50% {
        transform: translate3d(0, -6px, 0) scale(1.014);
      }
    }

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

    .hero-meta {
      margin-top: 34px;
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
    }

    .meta-chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 40px;
      padding: 0 16px;
      border-radius: 999px;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(47,143,255,.14);
      color: #215689;
      font-size: 14px;
    }

    .device-stage {
      position: relative;
      min-height: 460px;
      border-radius: 38px;
      padding: 34px;
      background:
        radial-gradient(circle at top, rgba(100,199,255,.24), transparent 30%),
        linear-gradient(180deg, rgba(255,255,255,.96), rgba(238,246,255,.9));
      border: 1px solid rgba(255,255,255,.9);
      box-shadow: 0 30px 90px rgba(34, 95, 173, 0.18);
      overflow: hidden;
    }

    .device-stage::before,
    .device-stage::after {
      content: "";
      position: absolute;
      border-radius: 50%;
      filter: blur(10px);
      opacity: .45;
      pointer-events: none;
    }

    .device-stage::before {
      width: 280px;
      height: 280px;
      right: -60px;
      top: -20px;
      background: rgba(100,199,255,.24);
    }

    .device-stage::after {
      width: 220px;
      height: 220px;
      left: -40px;
      bottom: -30px;
      background: rgba(47,143,255,.18);
    }

    .hero-device-art {
      position: absolute;
      inset: 34px;
      z-index: 2;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 14px;
      border-radius: 30px;
      background:
        radial-gradient(circle at 22% 18%, rgba(255,255,255,.92), transparent 34%),
        radial-gradient(circle at 74% 78%, rgba(47,143,255,.14), transparent 42%),
        linear-gradient(135deg, rgba(255,255,255,.88), rgba(220,241,255,.72));
      border: 1px solid rgba(255,255,255,.72);
      box-shadow:
        0 28px 80px rgba(34,95,173,.16),
        inset 0 1px 0 rgba(255,255,255,.86);
      overflow: hidden;
    }

    .hero-device-art::before {
      content: "";
      position: absolute;
      inset: -18%;
      background:
        radial-gradient(circle at 50% 42%, rgba(100,199,255,.18), transparent 34%),
        linear-gradient(120deg, transparent 0%, rgba(47,143,255,.08) 42%, transparent 76%);
      transform: rotate(-8deg);
      pointer-events: none;
    }

    .hero-device-art img {
      position: relative;
      z-index: 2;
      width: 108%;
      max-width: none;
      height: auto;
      object-fit: contain;
      object-position: center center;
      transform: scale(1);
      border-radius: 26px;
      filter:
        drop-shadow(0 22px 42px rgba(47,143,255,.18))
        saturate(1.06);
    }

    .device {
      position: absolute;
      border-radius: 28px;
      background: linear-gradient(180deg, #ffffff 0%, #eff6ff 100%);
      border: 1px solid rgba(47,143,255,.14);
      box-shadow: 0 24px 60px rgba(42, 95, 163, 0.18);
      overflow: hidden;
    }

    .device::before {
      content: "";
      display: block;
      height: 32px;
      background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(242,247,255,.92));
      border-bottom: 1px solid rgba(47,143,255,.08);
    }

    .device::after {
      content: "";
      position: absolute;
      left: 16px;
      top: 10px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: #ff5f57;
      box-shadow: 14px 0 0 #febc2e, 28px 0 0 #28c840;
    }

    .device.desktop {
      width: 76%;
      height: 70%;
      left: 12%;
      top: 12%;
      animation: floatA 6s ease-in-out infinite;
    }

    .device.phone {
      width: 23%;
      height: 40%;
      left: 3%;
      bottom: 10%;
      border-radius: 28px;
      animation: floatB 7.2s ease-in-out infinite;
    }

    .device.pad {
      width: 36%;
      height: 44%;
      right: 2%;
      bottom: 7%;
      border-radius: 30px;
      animation: floatC 7.4s ease-in-out infinite;
    }

    .mock-body {
      padding: 18px;
      display: grid;
      gap: 14px;
    }

    .mock-row,
    .mock-pill,
    .mock-bar,
    .mock-list span,
    .mock-wave {
      border-radius: 14px;
      background: linear-gradient(90deg, rgba(47,143,255,.14), rgba(100,199,255,.22));
    }

    .mock-row {
      height: 48px;
    }

    .mock-bar {
      height: 14px;
    }

    .mock-list {
      display: grid;
      gap: 10px;
    }

    .mock-list span {
      display: block;
      height: 18px;
    }

    .mock-wave {
      height: 64px;
      background: linear-gradient(90deg, rgba(47,143,255,.2), rgba(100,199,255,.34));
      position: relative;
      overflow: hidden;
    }

    .mock-wave::after {
      content: "";
      position: absolute;
      inset: 10px;
      background: repeating-linear-gradient(90deg, rgba(47,143,255,.65) 0 3px, transparent 3px 11px);
      opacity: .65;
      border-radius: 12px;
    }

    .device-screen {
      height: calc(100% - 32px);
      padding: 14px;
      background: linear-gradient(180deg, rgba(248,251,255,.96), rgba(235,243,255,.94));
    }

    .device-screen-image {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: contain;
      object-position: center center;
      border-radius: 18px;
      border: 1px solid rgba(47,143,255,.12);
      background: #ffffff;
    }

    .scene-showcase {
      left: 14px;
      top: 14px;
      right: 14px;
      bottom: 14px;
      width: auto;
      height: auto;
      padding: 24px;
      border-radius: 34px;
      animation: none;
      background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(237,245,255,.94));
    }

    .scene-showcase::before,
    .scene-showcase::after {
      display: none;
    }

    .scene-showcase.is-hidden {
      opacity: 0;
      transform: scale(.92);
      pointer-events: none;
    }

    .scene-stage-panel {
      position: absolute;
      inset: 14px;
      opacity: 0;
      pointer-events: none;
      transition: opacity .35s ease, transform .35s ease;
      transform: scale(.98);
    }

    .scene-stage-panel.active {
      opacity: 1;
      pointer-events: auto;
      transform: scale(1);
    }

    .scene-carousel {
      height: 100%;
      display: grid;
      grid-template-rows: auto 1fr;
      gap: 18px;
    }

    .scene-meta {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 18px;
    }

    .scene-meta-copy {
      display: grid;
      gap: 8px;
    }

    .scene-kicker {
      display: inline-flex;
      align-items: center;
      width: fit-content;
      padding: 6px 12px;
      border-radius: 999px;
      background: rgba(47,143,255,.1);
      color: #2b67a4;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .06em;
      text-transform: uppercase;
    }

    .scene-feature-title {
      font-size: 26px;
      font-weight: 800;
      letter-spacing: -.04em;
      color: #102a45;
    }

    .scene-feature-subtitle {
      color: #5d7591;
      font-size: 14px;
      line-height: 1.75;
      max-width: 420px;
    }

    .scene-feature-index {
      padding: 10px 14px;
      border-radius: 16px;
      background: rgba(255,255,255,.82);
      border: 1px solid rgba(47,143,255,.12);
      color: #275b90;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .08em;
      white-space: nowrap;
    }

    .scene-stack {
      position: relative;
      min-height: 0;
      perspective: 1400px;
    }

    .scene-shot {
      position: absolute;
      inset: 0;
      transition: transform .82s cubic-bezier(.22, 1, .36, 1), opacity .82s ease, filter .82s ease;
      transform-origin: center center;
      pointer-events: none;
    }

    .scene-shot-card {
      width: 100%;
      height: 100%;
      padding: 12px;
      border-radius: 30px;
      background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(240,246,255,.94));
      border: 1px solid rgba(47,143,255,.14);
      box-shadow: 0 24px 60px rgba(34, 95, 173, 0.18);
      overflow: hidden;
    }

    .scene-shot-image {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: contain;
      object-position: center center;
      border-radius: 18px;
      background: #ffffff;
    }

    .multi-device-showcase {
      width: 100%;
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 18px;
      background:
        radial-gradient(circle at 30% 20%, rgba(100,199,255,.12), transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(47,143,255,.10), transparent 50%),
        linear-gradient(180deg, rgba(245,249,255,.98), rgba(235,245,255,.94));
      border-radius: 24px;
      overflow: hidden;
      position: relative;
    }

    .multi-device-showcase::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 25% 25%, rgba(100,199,255,.10), transparent 45%),
        radial-gradient(circle at 75% 75%, rgba(47,143,255,.08), transparent 45%);
      pointer-events: none;
    }

    .multi-device-showcase img {
      position: relative;
      z-index: 2;
      max-width: 100%;
      max-height: 100%;
      width: auto;
      height: auto;
      object-fit: contain;
      border-radius: 16px;
      filter: drop-shadow(0 16px 40px rgba(47, 143, 255, 0.12));
    }

    .shared-device-showcase {
      position: absolute;
      inset: 14px;
      z-index: 5;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 24px;
      background:
        radial-gradient(circle at 30% 20%, rgba(100,199,255,.12), transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(47,143,255,.10), transparent 50%),
        linear-gradient(180deg, rgba(245,249,255,.98), rgba(235,245,255,.94));
      border-radius: 34px;
      overflow: hidden;
    }

    .shared-device-showcase::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 25% 25%, rgba(100,199,255,.10), transparent 45%),
        radial-gradient(circle at 75% 75%, rgba(47,143,255,.08), transparent 45%);
      pointer-events: none;
    }

    .shared-device-showcase img {
      position: relative;
      z-index: 2;
      max-width: 100%;
      max-height: 100%;
      width: auto;
      height: auto;
      object-fit: contain;
      border-radius: 16px;
      filter: drop-shadow(0 16px 40px rgba(47, 143, 255, 0.12));
    }

    .scene-shot.is-front {
      opacity: 1;
      filter: blur(0);
      transform: translate3d(0, 0, 0) scale(1);
      z-index: 4;
    }

    .scene-shot.is-middle {
      opacity: .42;
      filter: blur(6px);
      transform: translate3d(38px, 28px, 0) scale(.92);
      z-index: 3;
    }

    .scene-shot.is-back {
      opacity: .2;
      filter: blur(12px);
      transform: translate3d(76px, 54px, 0) scale(.84);
      z-index: 2;
    }

    .scene-shot.is-rest {
      opacity: 0;
      filter: blur(18px);
      transform: translate3d(110px, 82px, 0) scale(.78);
      z-index: 1;
    }

    .mobile-showcase {
      inset: 22px 92px;
      max-width: 380px;
      margin: 0 auto;
      padding: 18px 16px;
      border-radius: 36px;
      background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(237,245,255,.94));
      border: 1px solid rgba(47,143,255,.14);
      box-shadow: 0 24px 60px rgba(34, 95, 173, 0.18);
    }

    .mobile-showcase::before,
    .mobile-showcase::after {
      display: none;
    }

    .mobile-showcase .scene-meta {
      gap: 8px;
    }

    .mobile-showcase .scene-feature-title {
      font-size: 18px;
    }

    .mobile-showcase .scene-feature-subtitle {
      max-width: none;
      font-size: 12px;
      line-height: 1.55;
      color: #6b7f98;
      max-width: 280px;
    }

    .mobile-showcase .scene-carousel {
      gap: 10px;
    }

    .mobile-stack {
      position: relative;
      min-height: 0;
      perspective: 1400px;
    }

    .mobile-shot {
      position: absolute;
      inset: 0;
      transition: transform .82s cubic-bezier(.22, 1, .36, 1), opacity .82s ease, filter .82s ease;
      transform-origin: center center;
      pointer-events: none;
    }

    .mobile-shot-card {
      width: 100%;
      height: 100%;
      padding: 8px;
      border-radius: 24px;
      background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(240,246,255,.94));
      border: 1px solid rgba(47,143,255,.14);
      box-shadow: 0 24px 60px rgba(34, 95, 173, 0.16);
      overflow: hidden;
    }

    .mobile-shot-image {
      width: 100%;
      height: calc(100% + 40px);
      display: block;
      object-fit: contain;
      object-position: center top;
      border-radius: 22px;
      background: #ffffff;
      margin-top: -40px;
    }

    .mobile-shot.is-front {
      opacity: 1;
      filter: blur(0);
      transform: translate3d(0, 0, 0) scale(1);
      z-index: 4;
    }

    .mobile-shot.is-middle {
      opacity: .38;
      filter: blur(6px);
      transform: translate3d(18px, 20px, 0) scale(.94);
      z-index: 3;
    }

    .mobile-shot.is-back {
      opacity: .16;
      filter: blur(12px);
      transform: translate3d(34px, 38px, 0) scale(.88);
      z-index: 2;
    }

    .mobile-shot.is-rest {
      opacity: 0;
      filter: blur(18px);
      transform: translate3d(48px, 54px, 0) scale(.82);
      z-index: 1;
    }

    .tablet-showcase {
      inset: 42px 54px;
      max-width: 640px;
      margin: 0 auto;
      padding: 18px 16px;
      border-radius: 34px;
      background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(237,245,255,.94));
      box-shadow: 0 24px 60px rgba(34, 95, 173, 0.18);
    }

    .tablet-showcase::before,
    .tablet-showcase::after {
      display: none;
    }

    .tablet-showcase .scene-meta {
      gap: 8px;
    }

    .tablet-showcase .scene-feature-title {
      font-size: 20px;
    }

    .tablet-showcase .scene-feature-subtitle {
      max-width: none;
      font-size: 13px;
      line-height: 1.55;
    }

    .tablet-showcase .scene-carousel {
      gap: 10px;
    }

    .tablet-stack {
      position: relative;
      min-height: 0;
      perspective: 1400px;
    }

    .tablet-shot {
      position: absolute;
      inset: 0;
      transition: transform .82s cubic-bezier(.22, 1, .36, 1), opacity .82s ease, filter .82s ease;
      will-change: transform, opacity, filter;
      pointer-events: none;
    }

    .tablet-shot-card {
      width: 100%;
      height: 100%;
      padding: 8px;
      border-radius: 28px;
      background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(237,245,255,.94));
      border: 1px solid rgba(47,143,255,.12);
      box-shadow: 0 24px 60px rgba(34, 95, 173, 0.18);
      overflow: hidden;
      display: grid;
      align-items: center;
      position: relative;
    }

    .tablet-shot-card::before,
    .tablet-shot-card::after {
      content: "";
      position: absolute;
      left: 8px;
      right: 8px;
      height: 28px;
      z-index: 2;
      pointer-events: none;
    }

    .tablet-shot-card::before {
      top: 8px;
      background: linear-gradient(180deg, rgba(255,255,255,.75), transparent);
    }

    .tablet-shot-card::after {
      bottom: 8px;
      background: linear-gradient(0deg, rgba(255,255,255,.75), transparent);
    }

    .tablet-shot-image {
      width: 100%;
      height: auto;
      max-height: 100%;
      display: block;
      object-fit: contain;
      object-position: center center;
      border-radius: 22px;
      background: #ffffff;
    }

    .tablet-shot.is-front {
      opacity: 1;
      filter: blur(0);
      transform: translate3d(0, 0, 0) scale(1);
      z-index: 4;
    }

    .tablet-shot.is-middle {
      opacity: .38;
      filter: blur(6px);
      transform: translate3d(18px, 20px, 0) scale(.94);
      z-index: 3;
    }

    .tablet-shot.is-back {
      opacity: .16;
      filter: blur(12px);
      transform: translate3d(34px, 38px, 0) scale(.88);
      z-index: 2;
    }

    .tablet-shot.is-rest {
      opacity: 0;
      filter: blur(18px);
      transform: translate3d(48px, 54px, 0) scale(.82);
      z-index: 1;
    }

    .section {
      padding: 118px 0 0;
      position: relative;
    }

    .section-head {
      margin-bottom: 32px;
      display: flex;
      flex-wrap: wrap;
      align-items: end;
      justify-content: space-between;
      gap: 22px;
    }

    .section-title {
      margin: 0;
      font-size: clamp(28px, 4vw, 48px);
      line-height: 1.12;
      letter-spacing: -0.04em;
    }

    .section-desc {
      margin: 0;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.95;
      max-width: 560px;
    }

    .features-grid {
      display: grid;
      grid-template-columns: repeat(12, minmax(0, 1fr));
      gap: 22px;
      align-items: start;
    }

    .feature-card {
      padding: 30px;
      border-radius: 28px;
      min-height: 260px;
      display: grid;
      align-content: start;
      gap: 16px;
      transition: .3s ease;
      grid-column: span 4;
      position: relative;
      overflow: hidden;
    }

    .feature-card::after {
      content: "";
      position: absolute;
      inset: auto -40px -60px auto;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(100,199,255,.20), transparent 70%);
      pointer-events: none;
    }

    .feature-card:nth-child(1) {
      grid-column: span 7;
      min-height: 320px;
    }

    .feature-card:nth-child(2) {
      grid-column: span 5;
      min-height: 320px;
      margin-top: 48px;
    }

    .feature-card:nth-child(3) {
      grid-column: span 4;
      margin-top: -12px;
    }

    .feature-card:nth-child(4) {
      grid-column: span 4;
      margin-top: 42px;
    }

    .feature-card:nth-child(5) {
      grid-column: span 4;
      margin-top: 12px;
    }

    .feature-card:nth-child(6) {
      grid-column: span 5;
      min-height: 300px;
      margin-top: 8px;
    }

    .feature-card:nth-child(7) {
      grid-column: span 7;
      min-height: 300px;
      margin-top: 64px;
    }

    .feature-card:hover,
    .update-card:hover,
    .download-card:hover,
    .faq-card:hover,
    .contact-card:hover {
      transform: translateY(-4px);
    }

    .feature-icon {
      width: 58px;
      height: 58px;
      border-radius: 18px;
      background: linear-gradient(135deg, rgba(47,143,255,.14), rgba(100,199,255,.3));
      display: grid;
      place-items: center;
      color: var(--deep);
      font-size: 22px;
      font-weight: 700;
    }

    .feature-card h3,
    .update-card h3,
    .download-card h3,
    .contact-card h3,
    .faq-card h3 {
      margin: 0;
      font-size: 26px;
      letter-spacing: -0.03em;
    }

    .feature-card p,
    .update-card p,
    .download-card p,
    .contact-card p,
    .faq-card p,
    .device-detail p {
      margin: 0;
      color: var(--muted);
      line-height: 1.85;
    }

    .feature-list,
    .update-list,
    .device-bullets,
    .help-list {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .feature-list li,
    .update-list li,
    .device-bullets li,
    .help-list li {
      position: relative;
      padding-left: 18px;
      color: #44607e;
      line-height: 1.75;
      font-size: 14px;
    }

    .feature-list li::before,
    .update-list li::before,
    .device-bullets li::before,
    .help-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: .72em;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: 0 0 14px rgba(47,143,255,.35);
    }

    .updates-grid,
    .bottom-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 24px;
    }

    .downloads-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 22px;
    }

    .hero-note {
      margin-top: 18px;
      color: #56708d;
      font-size: 14px;
      line-height: 1.8;
      max-width: 560px;
    }

    .timeline-layout {
      display: grid;
      grid-template-columns: 340px 1fr;
      gap: 28px;
      align-items: start;
    }

    .timeline-nav,
    .timeline-panel,
    .login-modal-card {
      background: var(--panel);
      backdrop-filter: blur(18px);
      border: 1px solid rgba(255,255,255,.78);
      box-shadow: var(--shadow);
    }

    .timeline-nav {
      padding: 26px;
      border-radius: 28px;
      position: sticky;
      top: 110px;
      max-height: calc(100vh - 140px);
      overflow: hidden;
      display: flex;
      flex-direction: column;
    }

    .timeline-list {
      margin: 22px 0 0;
      padding: 0 0 0 12px;
      list-style: none;
      border-left: 1px solid rgba(47,143,255,.14);
      display: grid;
      gap: 12px;
      overflow-y: auto;
      padding-right: 8px;
    }

    .timeline-item {
      position: relative;
      padding-left: 22px;
    }

    .timeline-item::before {
      content: "";
      position: absolute;
      left: -17px;
      top: 18px;
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: rgba(47,143,255,.24);
      border: 2px solid rgba(255,255,255,.92);
      box-shadow: 0 0 0 4px rgba(47,143,255,.08);
    }

    .timeline-point {
      width: 100%;
      text-align: left;
      border: 0;
      cursor: pointer;
      padding: 14px 14px 14px 16px;
      border-radius: 18px;
      background: rgba(255,255,255,.54);
      color: #36587d;
      transition: .25s ease;
    }

    .timeline-point.passive {
      cursor: default;
    }

    .timeline-point.active {
      background: linear-gradient(135deg, rgba(47,143,255,.14), rgba(100,199,255,.22));
      color: #10385f;
      box-shadow: 0 12px 24px rgba(47,143,255,.12);
    }

    .timeline-date {
      display: block;
      font-size: 12px;
      letter-spacing: .08em;
      text-transform: uppercase;
      opacity: .72;
      margin-bottom: 6px;
    }

    .timeline-version {
      display: block;
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .timeline-summary {
      display: block;
      font-size: 13px;
      line-height: 1.7;
    }

    .timeline-panel {
      padding: 34px;
      border-radius: 32px;
      min-height: 520px;
    }

    .timeline-detail {
      display: none;
      gap: 22px;
    }

    .timeline-detail.active {
      display: grid;
    }

    .timeline-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .timeline-body {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 22px;
      align-items: start;
    }

    .timeline-poster,
    .timeline-text-box {
      padding: 24px;
      border-radius: 24px;
      background: rgba(255,255,255,.62);
      border: 1px solid rgba(47,143,255,.12);
      min-height: 260px;
    }

    .timeline-poster {
      display: grid;
      place-items: center;
      color: #3f6389;
      text-align: center;
      background:
        radial-gradient(circle at top, rgba(100,199,255,.18), transparent 30%),
        linear-gradient(180deg, rgba(255,255,255,.76), rgba(240,247,255,.72));
    }

    .timeline-poster strong {
      display: block;
      color: #10385f;
      margin-bottom: 10px;
      font-size: 18px;
    }

    .scene-layout {
      display: grid;
      grid-template-columns: .94fr 1.06fr;
      gap: 28px;
      align-items: stretch;
    }

    #devices .device-stage {
      min-height: 775px;
    }

    #devices .scene-showcase {
      padding: 20px;
    }

    #devices .scene-shot-card {
      padding: 12px;
    }

    .login-modal {
      position: fixed;
      inset: 0;
      display: none;
      align-items: center;
      justify-content: center;
      z-index: 60;
      background: rgba(6,16,31,.42);
      backdrop-filter: blur(10px);
      padding: 20px;
    }

    .login-modal.show {
      display: flex;
    }

    .login-modal-card {
      width: min(420px, 100%);
      border-radius: 28px;
      padding: 28px;
    }

    .login-modal-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 18px;
    }

    .login-close {
      border: 0;
      width: 38px;
      height: 38px;
      border-radius: 50%;
      background: rgba(47,143,255,.08);
      color: #214f7c;
      cursor: pointer;
    }

    .login-form {
      display: grid;
      gap: 14px;
    }

    .login-code-row {
      display: grid;
      grid-template-columns: 1fr 128px;
      gap: 10px;
    }

    .login-form input {
      width: 100%;
      min-height: 48px;
      border-radius: 16px;
      border: 1px solid rgba(47,143,255,.14);
      background: rgba(255,255,255,.72);
      padding: 0 16px;
      font: inherit;
      color: #123a61;
    }

    .login-tips {
      color: #66829e;
      font-size: 13px;
      line-height: 1.7;
    }

    .login-tips.success {
      color: #18864b;
    }

    .login-tips.error {
      color: #d33b30;
    }

    .user-entry {
      position: relative;
    }

    .user-trigger {
      border: 1px solid rgba(47,143,255,.16);
      background: rgba(255,255,255,.78);
      border-radius: 999px;
      min-height: 52px;
      padding: 6px 10px 6px 8px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
      box-shadow: 0 12px 30px rgba(47,143,255,.12);
      transition: .25s ease;
      color: #123a61;
    }

    .user-trigger:hover {
      transform: translateY(-1px);
      box-shadow: 0 16px 36px rgba(47,143,255,.16);
    }

    .user-avatar {
      width: 38px;
      height: 38px;
      border-radius: 50%;
      overflow: hidden;
      flex-shrink: 0;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      color: #fff;
      font-weight: 700;
      font-size: 15px;
      box-shadow: 0 10px 24px rgba(47,143,255,.22);
    }

    .user-avatar.large {
      width: 52px;
      height: 52px;
      font-size: 18px;
    }

    .user-avatar img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .user-meta,
    .user-popover-meta {
      display: grid;
      gap: 2px;
      text-align: left;
    }

    .user-name {
      font-size: 14px;
      font-weight: 700;
      color: #11345a;
      line-height: 1.2;
    }

    .user-phone {
      font-size: 12px;
      color: #6c86a2;
      line-height: 1.2;
    }

    .user-membership-summary {
      font-size: 11px;
      color: #1a5da0;
      line-height: 1.2;
      font-weight: 700;
    }

    .user-popover {
      position: absolute;
      top: calc(100% + 12px);
      right: 0;
      width: 280px;
      padding: 16px;
      border-radius: 22px;
      background: rgba(255,255,255,.95);
      border: 1px solid rgba(47,143,255,.12);
      box-shadow: 0 24px 60px rgba(34,95,173,.18);
      backdrop-filter: blur(18px);
      display: none;
      z-index: 60;
    }

    .user-entry.show .user-popover {
      display: grid;
      gap: 12px;
    }

    .user-popover-head {
      display: flex;
      align-items: center;
      gap: 12px;
      padding-bottom: 12px;
      border-bottom: 1px solid rgba(47,143,255,.10);
    }

    .user-popover-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      color: #5f7b99;
      font-size: 13px;
    }

    .user-popover-row strong {
      color: #10385f;
      font-size: 13px;
      text-align: right;
    }

    .user-logout {
      border: 0;
      min-height: 44px;
      border-radius: 14px;
      background: rgba(47,143,255,.08);
      color: #14539a;
      font: inherit;
      font-weight: 700;
      cursor: pointer;
      transition: .25s ease;
    }

    .user-logout:hover {
      background: rgba(47,143,255,.14);
    }

    .membership-hero {
      padding-top: 156px;
      padding-bottom: 28px;
    }

    .membership-hero-shell,
    .membership-center-board {
      background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(233,244,255,.78));
      border: 1px solid rgba(47,143,255,.12);
      box-shadow: var(--shadow);
      border-radius: 34px;
      backdrop-filter: blur(18px);
    }

    .membership-hero-shell {
      padding: 38px;
      display: grid;
      gap: 22px;
    }

    .membership-top-points,
    .membership-benefit-strip,
    .membership-center-meta {
      display: grid;
      gap: 14px;
    }

    .membership-top-points {
      grid-template-columns: repeat(4, minmax(0, 1fr));
      margin-top: 26px;
    }

    .membership-top-points span,
    .membership-center-meta div {
      min-height: 54px;
      padding: 0 18px;
      border-radius: 18px;
      background: rgba(255,255,255,.82);
      border: 1px solid rgba(47,143,255,.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #194979;
      font-size: 14px;
      font-weight: 700;
    }

    .membership-benefit-strip {
      grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .membership-center-section {
      padding-top: 156px;
    }

    .membership-center-board {
      padding: 0;
      background: transparent;
      border: none;
      box-shadow: none;
      backdrop-filter: none;
    }

    .membership-center-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 18px;
    }

    .membership-center-head.simple {
      justify-content: flex-start;
      margin-bottom: 12px;
    }

    .membership-center-meta {
      grid-template-columns: repeat(3, minmax(0, 1fr));
      min-width: 430px;
    }

    .membership-center-meta div {
      min-height: 88px;
      padding: 16px 18px;
      display: grid;
      justify-content: start;
      align-content: center;
      gap: 8px;
    }

    .membership-center-meta span {
      color: #6983a0;
      font-size: 12px;
      font-weight: 600;
    }

    .membership-center-meta strong {
      color: #123053;
      font-size: 20px;
      line-height: 1.2;
    }

    .membership-hero-grid,
    .membership-info-grid,
    .purchase-modal-body {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 28px;
      align-items: stretch;
    }

    .membership-hero-copy,
    .membership-summary-card,
    .membership-plan-card,
    .membership-info-card,
    .purchase-modal-card,
    .purchase-order-card {
      background: var(--panel);
      border: 1px solid rgba(47,143,255,.12);
      box-shadow: var(--shadow);
      backdrop-filter: blur(18px);
    }

    .membership-hero-copy,
    .membership-summary-card,
    .membership-info-card {
      border-radius: 32px;
      padding: 34px;
    }

    .membership-eyebrow {
      background: rgba(47,143,255,.08);
      border-color: rgba(47,143,255,.12);
      color: #1f5384;
    }

    .membership-title {
      margin: 22px 0 16px;
      font-size: clamp(38px, 4.8vw, 66px);
      line-height: 1.06;
      letter-spacing: -.04em;
      color: #0f2540;
    }

    .membership-lead {
      margin: 0;
      max-width: 680px;
      color: #617c97;
      line-height: 1.9;
      font-size: 16px;
    }

    .membership-hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 28px;
    }

    .membership-notice-grid,
    .membership-benefit-list {
      display: grid;
      gap: 14px;
      margin-top: 26px;
    }

    .membership-notice-card,
    .membership-benefit-item {
      padding: 18px 20px;
      border-radius: 20px;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(47,143,255,.1);
      display: grid;
      gap: 8px;
    }

    .membership-notice-card strong,
    .membership-benefit-item strong,
    .membership-summary-head h2,
    .membership-info-card h3,
    .membership-plan-top h3 {
      color: #123053;
    }

    .membership-notice-card span,
    .membership-benefit-item span,
    .membership-plan-top p,
    .membership-order-meta,
    .purchase-order-meta,
    .membership-step-list,
    .membership-action-tip {
      color: #65809b;
      line-height: 1.8;
    }

    .membership-summary-head h2,
    .membership-info-card h3 {
      margin: 16px 0 0;
      font-size: 28px;
      line-height: 1.25;
    }

    .membership-summary-badge,
    .membership-plan-tag {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 0 10px;
      border-radius: 999px;
      background: rgba(47,143,255,.08);
      border: 1px solid rgba(47,143,255,.14);
      color: #155396;
      font-size: 11px;
      font-weight: 700;
      letter-spacing: .04em;
    }

    .membership-section-head {
      margin-bottom: 18px;
    }

    .membership-action-tip {
      margin-bottom: 20px;
      padding: 14px 18px;
      border-radius: 18px;
      background: rgba(255,255,255,.74);
      border: 1px solid rgba(47,143,255,.12);
    }

    .membership-action-tip.success {
      color: #18864b;
      border-color: rgba(24,134,75,.18);
      background: rgba(24,134,75,.08);
    }

    .membership-action-tip.error {
      color: #c43d36;
      border-color: rgba(212,73,66,.16);
      background: rgba(212,73,66,.08);
    }

    .membership-plan-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(260px, 320px));
      gap: 14px;
      justify-content: center;
    }

    .membership-plan-card {
      border-radius: 24px;
      padding: 18px;
      display: grid;
      gap: 12px;
      position: relative;
      overflow: hidden;
    }

    .membership-plan-card.highlight {
      background: var(--panel);
    }

    .membership-plan-card.featured-plan {
      background: var(--panel);
      transform: none;
      border-color: rgba(47,143,255,.12);
      box-shadow: var(--shadow);
    }

    .membership-plan-top {
      display: grid;
      gap: 8px;
    }

    .membership-plan-top h3 {
      margin: 0;
      font-size: 20px;
      line-height: 1.12;
    }

    .membership-plan-top p,
    .membership-price-row span {
      margin: 0;
      font-size: 12px;
    }

    .membership-price-row {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 8px;
      padding: 10px 12px;
      border-radius: 14px;
      background: rgba(255,255,255,.8);
      border: 1px solid rgba(47,143,255,.1);
    }

    .membership-price-row strong {
      font-size: 28px;
      line-height: 1;
      letter-spacing: -.04em;
      color: #0d3158;
    }

    .membership-feature-list,
    .membership-step-list {
      margin: 0;
      padding-left: 20px;
    }

    .membership-feature-list {
      display: grid;
      gap: 6px;
      color: #33506f;
      line-height: 1.5;
      font-size: 12px;
    }

    .membership-buy-btn.is-owned,
    .membership-buy-btn:disabled {
      background: rgba(47,143,255,.10);
      color: #7b93ad;
      box-shadow: none;
      cursor: not-allowed;
      transform: none;
    }

    .membership-info-section {
      padding-top: 22px;
    }

    .membership-compare-wrap {
      max-width: 654px;
      margin: 0 auto;
    }

    .membership-compare-head {
      display: flex;
      justify-content: center;
      margin-bottom: 14px;
    }

    .membership-compare-title {
      color: #123053;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: .02em;
    }

    .membership-compare-table {
      border-radius: 22px;
      overflow: hidden;
      border: 1px solid rgba(47,143,255,.12);
      background: rgba(255,255,255,.72);
      box-shadow: var(--shadow);
    }

    .membership-compare-row {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr;
    }

    .membership-compare-row + .membership-compare-row {
      border-top: 1px solid rgba(47,143,255,.08);
    }

    .membership-compare-row-head {
      background: rgba(47,143,255,.06);
    }

    .membership-compare-cell {
      min-height: 58px;
      padding: 14px 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      color: #355271;
      font-size: 13px;
      line-height: 1.5;
    }

    .membership-compare-cell + .membership-compare-cell {
      border-left: 1px solid rgba(47,143,255,.08);
    }

    .membership-compare-cell.is-label {
      justify-content: flex-start;
      text-align: left;
      font-weight: 600;
      color: #123053;
    }

    .membership-compare-row-head .membership-compare-cell {
      font-size: 14px;
      font-weight: 700;
      color: #123053;
    }

    .membership-compare-cell.is-member {
      color: #1f5fa0;
    }

    .membership-compare-cell.is-free {
      color: #6f87a3;
    }

    .membership-service-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .membership-service-card {
      min-height: 100%;
    }

    .membership-info-card h3 {
      margin: 0;
      font-size: 18px;
      line-height: 1.2;
    }

    .membership-service-copy {
      margin: 18px 0 0;
      color: #65809b;
      line-height: 1.85;
    }

    .membership-empty-block {
      margin-top: 14px;
      min-height: 140px;
      border-radius: 18px;
      border: 1px dashed rgba(47,143,255,.2);
      background: rgba(255,255,255,.7);
      display: flex;
      align-items: center;
      justify-content: center;
      color: #7a91ab;
      font-size: 13px;
    }

    .membership-field-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 22px;
    }

    .membership-field-chips span {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 0 16px;
      border-radius: 999px;
      background: rgba(255,255,255,.82);
      border: 1px solid rgba(47,143,255,.1);
      color: #194979;
      font-size: 13px;
      font-weight: 600;
    }

    .purchase-modal {
      position: fixed;
      inset: 0;
      display: none;
      align-items: center;
      justify-content: center;
      z-index: 70;
      background: rgba(6,16,31,.52);
      backdrop-filter: blur(12px);
      padding: 20px;
    }

    .purchase-modal.show {
      display: flex;
    }

    .purchase-modal-card {
      width: min(360px, 100%);
      border-radius: 24px;
      padding: 16px;
      background:
        radial-gradient(circle at top left, rgba(90,159,255,.16), transparent 28%),
        linear-gradient(180deg, rgba(255,255,255,.96), rgba(244,248,255,.94));
      border: 1px solid rgba(47,143,255,.12);
      box-shadow: 0 36px 120px rgba(10, 33, 67, .22);
    }

    .purchase-modal-mini-head {
      display: flex;
      justify-content: flex-end;
      margin-bottom: 8px;
    }

    .purchase-modal-mini-head .login-close {
      width: 30px;
      height: 30px;
      border-radius: 50%;
      background: rgba(47,143,255,.08);
      color: #5b7fa6;
      transition: .25s ease;
    }

    .purchase-modal-mini-head .login-close:hover {
      background: rgba(47,143,255,.16);
      color: #234f80;
    }

    .purchase-modal-head {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 16px;
    }

    .purchase-modal-title-wrap {
      display: grid;
      gap: 6px;
      max-width: 560px;
    }

    .purchase-modal-eyebrow {
      width: fit-content;
      background: rgba(47,143,255,.08);
      border-color: rgba(47,143,255,.12);
      color: #1f5384;
    }

    .purchase-modal-title {
      margin: 0;
      font-size: 20px;
      line-height: 1.2;
      letter-spacing: -.02em;
      color: #0f2540;
    }

    .purchase-modal-subtitle {
      margin: 0;
      color: #69819a;
      line-height: 1.6;
      font-size: 12px;
    }

    .purchase-modal-head .login-close {
      flex: 0 0 auto;
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(47,143,255,.08);
      color: #5b7fa6;
      transition: .25s ease;
    }

    .purchase-modal-head .login-close:hover {
      background: rgba(47,143,255,.16);
      color: #234f80;
    }

    .purchase-modal-body {
      gap: 14px;
      align-items: stretch;
      grid-template-columns: minmax(260px, 1fr) minmax(0, 1fr);
    }

    .purchase-qr-panel {
      padding: 16px;
      border-radius: 20px;
      background: linear-gradient(180deg, rgba(232,240,252,.88), rgba(244,248,255,.98));
      border: 1px solid rgba(47,143,255,.12);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.7);
      display: grid;
      align-content: start;
      gap: 10px;
    }

    .purchase-price-banner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 10px 14px;
      border-radius: 14px;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(47,143,255,.12);
    }

    .purchase-price-banner span {
      color: #6b85a1;
      font-size: 12px;
      font-weight: 600;
    }

    .purchase-price-banner strong {
      color: #0f4f96;
      font-size: 20px;
      line-height: 1;
      letter-spacing: -.03em;
    }

    .purchase-qr-wrap {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 220px;
      padding: 16px;
      border-radius: 18px;
      background: linear-gradient(180deg, rgba(255,255,255,.98), rgba(247,250,255,.94));
      border: 1px solid rgba(47,143,255,.1);
      box-shadow: 0 18px 46px rgba(47,143,255,.08);
    }

    .purchase-qr-wrap img {
      width: min(188px, 100%);
      aspect-ratio: 1;
      object-fit: contain;
      border-radius: 16px;
      background: #fff;
      padding: 10px;
      box-shadow: 0 20px 48px rgba(31,95,160,.18);
    }

    .purchase-qr-state {
      position: absolute;
      inset: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 18px;
      background: rgba(11, 34, 61, .08);
      pointer-events: none;
      opacity: 0;
      transition: opacity .25s ease, background .25s ease;
    }

    .purchase-qr-state.is-visible {
      opacity: 1;
    }

    .purchase-qr-state-badge {
      min-width: 84px;
      min-height: 32px;
      padding: 0 14px;
      border-radius: 999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .04em;
      color: #fff;
      background: rgba(22, 93, 161, .9);
      box-shadow: 0 10px 30px rgba(17, 70, 126, .18);
    }

    .purchase-qr-state-text {
      max-width: 200px;
      text-align: center;
      color: #244a73;
      font-size: 12px;
      line-height: 1.6;
      font-weight: 600;
    }

    .purchase-qr-state[data-state="scanned"] {
      background: rgba(15, 79, 150, .12);
    }

    .purchase-qr-state[data-state="paid"] {
      background: rgba(24, 134, 75, .14);
    }

    .purchase-qr-state[data-state="paid"] .purchase-qr-state-badge {
      background: rgba(24, 134, 75, .92);
    }

    .purchase-qr-state[data-state="paid"] .purchase-qr-state-text {
      color: #177148;
    }

    .purchase-qr-caption {
      font-size: 13px;
      font-weight: 700;
      color: #123053;
      text-align: center;
    }

    .purchase-qr-note {
      color: #6c84a0;
      font-size: 11px;
      line-height: 1.6;
      text-align: center;
    }

    .purchase-coupon-box {
      display: grid;
      gap: 8px;
      padding: 12px;
      border-radius: 14px;
      background: rgba(255,255,255,.74);
      border: 1px solid rgba(47,143,255,.1);
    }

    .purchase-coupon-label {
      color: #365574;
      font-size: 12px;
      font-weight: 700;
    }

    .purchase-coupon-row {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 10px;
    }

    .purchase-coupon-row input {
      min-width: 0;
      height: 36px;
      border-radius: 10px;
      border: 1px solid rgba(47,143,255,.12);
      background: rgba(255,255,255,.95);
      padding: 0 12px;
      font-size: 12px;
      color: #123053;
      outline: none;
    }

    .purchase-coupon-row input:focus {
      border-color: rgba(47,143,255,.28);
      box-shadow: 0 0 0 4px rgba(47,143,255,.08);
    }

    .purchase-coupon-row .btn {
      min-width: 84px;
      min-height: 36px;
      height: 36px;
      padding: 0 14px;
      font-size: 12px;
    }

    .purchase-coupon-tip {
      color: #8aa0b8;
      font-size: 11px;
      line-height: 1.6;
    }

    .purchase-modal-copy {
      display: grid;
      gap: 10px;
      align-content: start;
    }

    .purchase-order-card {
      padding: 14px 16px;
      border-radius: 16px;
      background: linear-gradient(180deg, rgba(255,255,255,.95), rgba(246,249,255,.92));
      border: 1px solid rgba(47,143,255,.12);
      box-shadow: 0 14px 34px rgba(18, 48, 83, .06);
    }

    .purchase-order-card.subtle {
      background: linear-gradient(180deg, rgba(255,255,255,.88), rgba(245,248,255,.86));
    }

    .purchase-order-card-primary {
      min-height: 0;
    }

    .purchase-order-card-status {
      min-height: 0;
    }

    .purchase-order-label {
      color: #6c84a0;
      font-size: 12px;
      font-weight: 600;
      margin-bottom: 6px;
    }

    .purchase-order-card strong,
    .purchase-order-grid strong {
      color: #123053;
      font-size: 14px;
      line-height: 1.4;
      letter-spacing: -.01em;
      word-break: break-all;
    }

    .purchase-order-card-primary strong {
      font-size: 18px;
      line-height: 1.2;
    }

    .purchase-order-card-status strong {
      font-size: 14px;
    }

    .purchase-order-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .purchase-order-grid div {
      padding: 12px 14px;
      border-radius: 14px;
      background: rgba(255,255,255,.88);
      border: 1px solid rgba(47,143,255,.1);
      display: grid;
      gap: 4px;
      box-shadow: 0 10px 26px rgba(18, 48, 83, .04);
    }

    .purchase-order-grid span {
      color: #6f87a3;
      font-size: 12px;
      font-weight: 600;
    }

    .purchase-order-meta {
      margin-top: 4px;
      font-size: 12px;
      line-height: 1.6;
    }

    .download-meta {
      margin-top: 14px;
    }

    .update-card,
    .download-card,
    .contact-card,
    .faq-card {
      padding: 34px;
      border-radius: 28px;
      position: relative;
      overflow: hidden;
    }

    .update-card:first-child,
    .contact-card:first-child {
      transform: translateY(26px);
    }

    .download-card {
      --download-offset: 0px;
      transform: translateY(var(--download-offset));
    }

    .download-card:nth-child(1) {
      --download-offset: 28px;
    }

    .download-card:nth-child(2) {
      --download-offset: -10px;
    }

    .download-card:nth-child(3) {
      --download-offset: 18px;
    }

    .download-card:nth-child(4) {
      --download-offset: -2px;
    }

    .download-card:hover {
      transform: translateY(calc(var(--download-offset) - 10px)) scale(1.01);
    }

    .device-section {
      display: grid;
      grid-template-columns: .94fr 1.06fr;
      gap: 28px;
      align-items: stretch;
    }

    .device-tabs {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 20px;
    }

    .tab-btn {
      border: 0;
      background: rgba(255,255,255,.78);
      color: #38608e;
      min-height: 44px;
      padding: 0 18px;
      border-radius: 999px;
      cursor: pointer;
      border: 1px solid rgba(47,143,255,.14);
      font-weight: 600;
      transition: .25s ease;
    }

    .tab-btn.active {
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      color: #fff;
      box-shadow: 0 12px 24px rgba(47,143,255,.22);
    }

    .device-card {
      padding: 34px;
      border-radius: 32px;
      margin-top: 34px;
    }

    .device.is-hidden {
      opacity: 0;
      transform: scale(.9);
      pointer-events: none;
    }

    .device-detail {
      display: none;
      gap: 14px;
    }

    .device-detail.active {
      display: grid;
    }

    .device-label {
      display: inline-flex;
      align-items: center;
      min-height: 36px;
      width: fit-content;
      padding: 0 14px;
      border-radius: 999px;
      background: rgba(47,143,255,.08);
      color: var(--deep);
      font-size: 13px;
      font-weight: 700;
    }

    .device-empty {
      padding: 18px 20px;
      border-radius: 22px;
      background: rgba(255,255,255,.58);
      border: 1px dashed rgba(47,143,255,.18);
      color: #486988;
      line-height: 1.8;
    }

    .download-card strong,
    .contact-card strong {
      color: #10385f;
    }

    .qr-box {
      width: 120px;
      aspect-ratio: 1;
      border-radius: 18px;
      background:
        linear-gradient(135deg, rgba(47,143,255,.15), rgba(100,199,255,.2)),
        repeating-linear-gradient(0deg, rgba(255,255,255,.4) 0 8px, transparent 8px 16px),
        repeating-linear-gradient(90deg, rgba(255,255,255,.4) 0 8px, transparent 8px 16px);
      border: 1px solid rgba(47,143,255,.18);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.8);
      display: grid;
      place-items: center;
      color: #215689;
      font-weight: 700;
      font-size: 14px;
    }

    .contact-qr-wrap {
      width: min(320px, 100%);
      aspect-ratio: .86;
      border-radius: 28px;
      overflow: hidden;
      background: linear-gradient(180deg, rgba(255,255,255,.96), rgba(239,246,255,.92));
      border: 1px solid rgba(47,143,255,.12);
      box-shadow: 0 18px 46px rgba(34,95,173,.12);
      flex-shrink: 0;
    }

    .contact-qr-wrap img {
      width: 100%;
      height: 100%;
      display: block;
      object-fit: cover;
      object-position: center 56%;
      transform: scale(1.28);
    }

    .contact-meta {
      display: grid;
      gap: 12px;
      min-width: 240px;
      flex: 1;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 22px;
    }

    .stat-card {
      padding: 38px 32px;
      border-radius: 28px;
      background: var(--panel);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      border: 1px solid rgba(255,255,255,.88);
      box-shadow:
        0 2px 0 rgba(255,255,255,.55) inset,
        0 20px 60px rgba(34, 95, 173, .12),
        0 6px 18px rgba(34, 95, 173, .06);
      display: grid;
      gap: 10px;
      align-content: start;
      text-align: center;
    }

    .stat-number {
      font-size: 48px;
      font-weight: 800;
      color: var(--deep);
      letter-spacing: -0.04em;
      line-height: 1.1;
    }

    .stat-number span {
      font-size: 22px;
      font-weight: 600;
      color: var(--primary);
      margin-left: 2px;
    }

    .stat-label {
      font-size: 16px;
      font-weight: 700;
      color: #10385f;
    }

    .stat-desc {
      margin: 0;
      font-size: 14px;
      color: #66829e;
      line-height: 1.7;
    }

    .chat-grid {
      position: relative;
      min-height: 520px;
      max-width: 900px;
      margin: 0 auto;
      perspective: 1200px;
    }

    .chat-bubble {
      position: absolute;
      width: min(680px, 92%);
      padding: 28px 32px;
      border-radius: 28px;
      background: var(--panel);
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      border: 1px solid rgba(255,255,255,.88);
      box-shadow:
        0 2px 0 rgba(255,255,255,.55) inset,
        0 20px 60px rgba(34, 95, 173, .12),
        0 6px 18px rgba(34, 95, 173, .06);
      display: grid;
      gap: 18px;
      align-content: space-between;
      opacity: 0;
      transform: translate3d(0, 80px, -260px) scale(.82);
      filter: blur(8px);
      animation: chatFloat 14s ease-in-out infinite;
      will-change: opacity, transform, filter;
    }

    .chat-bubble:nth-child(1) {
      top: 12px;
      left: 0;
      animation-delay: 0s;
    }

    .chat-bubble:nth-child(2) {
      top: 118px;
      right: 0;
      animation-delay: 3.4s;
    }

    .chat-bubble:nth-child(3) {
      top: 242px;
      left: 34px;
      animation-delay: 6.8s;
    }

    .chat-bubble:nth-child(4) {
      top: 366px;
      right: 42px;
      animation-delay: 10.2s;
    }

    .chat-bubble::before {
      content: "\"";
      position: absolute;
      top: 18px;
      left: 22px;
      font-size: 42px;
      color: rgba(47,143,255,.18);
      font-family: Georgia, serif;
      line-height: 1;
      pointer-events: none;
    }

    .chat-text {
      margin: 0;
      padding-left: 8px;
      font-size: 17px;
      line-height: 1.85;
      color: #2a4a6e;
      position: relative;
      z-index: 1;
    }

    .chat-author {
      display: flex;
      align-items: center;
      gap: 14px;
    }

    .chat-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: linear-gradient(135deg, rgba(47,143,255,.18), rgba(100,199,255,.32));
      display: grid;
      place-items: center;
      color: var(--deep);
      font-size: 16px;
      font-weight: 700;
      flex-shrink: 0;
    }

    .chat-name {
      font-weight: 700;
      color: #10385f;
      font-size: 15px;
    }

    .chat-role {
      font-size: 13px;
      color: #66829e;
      margin-top: 2px;
    }

    .events-timeline {
      position: relative;
      padding-left: 28px;
    }

    .events-timeline::before {
      content: "";
      position: absolute;
      left: 8px;
      top: 8px;
      bottom: 8px;
      width: 2px;
      background: linear-gradient(180deg, rgba(47,143,255,.28), rgba(100,199,255,.14), rgba(47,143,255,.06));
      border-radius: 2px;
    }

    .event-node {
      position: relative;
      padding-bottom: 36px;
    }

    .event-node:last-child {
      padding-bottom: 0;
    }

    .event-dot {
      position: absolute;
      left: -24px;
      top: 6px;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      border: 3px solid rgba(255,255,255,.92);
      box-shadow: 0 0 0 4px rgba(47,143,255,.12);
      padding: 0;
      cursor: pointer;
    }

    .event-card-tl {
      position: relative;
      width: 100%;
      text-align: left;
      padding: 28px 32px;
      border-radius: 24px;
      background: var(--panel);
      color: inherit;
      font: inherit;
      backdrop-filter: blur(24px);
      -webkit-backdrop-filter: blur(24px);
      border: 1px solid rgba(255,255,255,.88);
      box-shadow:
        0 2px 0 rgba(255,255,255,.55) inset,
        0 20px 60px rgba(34, 95, 173, .12),
        0 6px 18px rgba(34, 95, 173, .06);
      display: grid;
      gap: 10px;
      transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
      cursor: pointer;
    }

    .event-card-tl:hover {
      transform: translateY(-3px);
      box-shadow:
        0 2px 0 rgba(255,255,255,.55) inset,
        0 28px 72px rgba(34, 95, 173, .16),
        0 10px 24px rgba(34, 95, 173, .09);
      border-color: rgba(47,143,255,.28);
    }

    .event-cta {
      position: absolute;
      right: 24px;
      bottom: 22px;
      font-size: 13px;
      font-weight: 600;
      color: #4a8fe0;
      display: flex;
      align-items: center;
      gap: 4px;
      transition: color .2s ease, transform .2s ease;
      pointer-events: none;
    }

    .event-card-tl:hover .event-cta {
      color: #2f7ae6;
      transform: translateX(2px);
    }

    .event-card-tl h3 {
      margin: 0;
      font-size: 20px;
      letter-spacing: -.02em;
    }

    .event-card-tl p {
      margin: 0;
      color: var(--muted);
      line-height: 1.75;
      font-size: 15px;
    }

    .event-detail-modal {
      position: fixed;
      inset: 0;
      z-index: 90;
      display: none;
      place-items: center;
      padding: 24px;
      background: rgba(13, 35, 62, .28);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .event-detail-modal.show {
      display: grid;
    }

    .event-detail-card {
      width: min(920px, 100%);
      max-height: 86vh;
      overflow: auto;
      border-radius: 34px;
      background: rgba(255,255,255,.9);
      border: 1px solid rgba(255,255,255,.9);
      box-shadow: 0 30px 90px rgba(20, 65, 120, .22);
      padding: 34px;
    }

    .event-detail-head {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      align-items: flex-start;
      margin-bottom: 22px;
    }

    .event-detail-close {
      border: 0;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      background: rgba(47,143,255,.1);
      color: var(--deep);
      font-size: 24px;
      cursor: pointer;
    }

    .event-detail-body {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 24px;
      align-items: start;
    }

    .event-poster {
      min-height: 360px;
      border-radius: 26px;
      background:
        linear-gradient(135deg, rgba(47,143,255,.14), rgba(100,199,255,.25)),
        repeating-linear-gradient(0deg, rgba(255,255,255,.42) 0 10px, transparent 10px 20px),
        repeating-linear-gradient(90deg, rgba(255,255,255,.42) 0 10px, transparent 10px 20px);
      border: 1px solid rgba(47,143,255,.12);
      display: grid;
      place-items: center;
      color: #315f91;
      font-weight: 700;
      overflow: hidden;
    }

    .event-poster img {
      width: 100%;
      height: auto;
      display: block;
      object-fit: contain;
      border-radius: 26px;
      background: #ffffff;
    }

    .event-detail-copy {
      display: grid;
      gap: 16px;
      align-content: start;
    }

    .event-detail-copy p {
      margin: 0;
      color: var(--muted);
      line-height: 1.85;
    }

    .event-detail-list {
      margin: 0;
      padding-left: 18px;
      color: #486988;
      line-height: 1.9;
    }

    .footer {
      padding: 88px 0 60px;
      color: #56708d;
      font-size: 14px;
    }

    .footer-card {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      align-items: center;
      justify-content: space-between;
      padding: 20px 24px;
      border-radius: 22px;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(255,255,255,.84);
      box-shadow: 0 12px 30px rgba(34,95,173,.08);
    }

    @keyframes floatA {
      0%, 100% { transform: translateY(0px); }
      50% { transform: translateY(-10px); }
    }

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

    @keyframes floatC {
      0%, 100% { transform: translateY(0px); }
      50% { transform: translateY(-8px); }
    }

    @keyframes chatFloat {
      0% {
        opacity: 0;
        transform: translate3d(0, 86px, -280px) scale(.82);
        filter: blur(10px);
      }
      13% {
        opacity: 1;
        transform: translate3d(0, 0, 0) scale(1);
        filter: blur(0);
      }
      52% {
        opacity: 1;
        transform: translate3d(0, -8px, 20px) scale(1.01);
        filter: blur(0);
      }
      76% {
        opacity: .18;
        transform: translate3d(0, -34px, -120px) scale(.94);
        filter: blur(4px);
      }
      100% {
        opacity: 0;
        transform: translate3d(0, -54px, -260px) scale(.88);
        filter: blur(9px);
      }
    }

    @media (max-width: 1100px) {
      .hero-grid,
      .device-section,
      .scene-layout,
      .timeline-layout,
      .timeline-body,
      .bottom-grid,
      .downloads-grid,
      .updates-grid,
      .chat-grid,
      .stats-grid,
      .membership-hero-grid,
      .membership-info-grid,
      .purchase-modal-body {
        grid-template-columns: 1fr;
      }

      .purchase-modal {
        padding: 14px;
      }

      .purchase-modal-card {
        padding: 24px;
        border-radius: 28px;
      }

      .purchase-modal-title {
        font-size: 30px;
      }

      .purchase-modal-head {
        margin-bottom: 22px;
      }

      .purchase-qr-panel {
        padding: 20px;
      }

      .purchase-qr-wrap {
        min-height: 280px;
        padding: 20px;
      }

      .purchase-order-card,
      .purchase-order-grid div {
        padding: 18px;
      }

      .membership-plan-grid {
        grid-template-columns: 1fr;
      }

      .membership-top-points,
      .membership-benefit-strip,
      .membership-service-grid,
      .membership-center-meta {
        grid-template-columns: 1fr;
      }

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

      .membership-compare-cell + .membership-compare-cell {
        border-left: none;
        border-top: 1px solid rgba(47,143,255,.08);
      }

      .membership-center-head {
        flex-direction: column;
        align-items: stretch;
      }

      .purchase-order-grid {
        grid-template-columns: 1fr;
      }

      .membership-center-meta {
        min-width: 0;
      }

      .features-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .feature-card,
      .feature-card:nth-child(1),
      .feature-card:nth-child(2),
      .feature-card:nth-child(3),
      .feature-card:nth-child(4),
      .feature-card:nth-child(5),
      .feature-card:nth-child(6),
      .feature-card:nth-child(7) {
        grid-column: auto;
        margin-top: 0;
        min-height: 260px;
      }

      .device-stage {
        min-height: 380px;
      }

      #devices .device-stage {
        min-height: 650px;
      }

      .hero-device-art img {
        width: 100%;
        transform: scale(1);
      }

      .scene-showcase {
        left: 0;
        top: 0;
        right: 0;
        bottom: 0;
        padding: 20px;
      }

      .scene-stage-panel {
        inset: 0;
      }

      .mobile-showcase {
        inset: 8px 54px;
      }

      .tablet-showcase {
        inset: 8px 40px;
      }

      .scene-feature-title {
        font-size: 22px;
      }

      .scene-feature-subtitle {
        max-width: none;
      }

      .scene-shot.is-middle {
        transform: translate3d(24px, 18px, 0) scale(.93);
      }

      .scene-shot.is-back {
        transform: translate3d(48px, 36px, 0) scale(.87);
      }

      .scene-shot.is-rest {
        transform: translate3d(68px, 52px, 0) scale(.8);
      }

      .timeline-nav {
        position: static;
        max-height: none;
      }

      .timeline-list {
        overflow: visible;
        padding-right: 0;
      }

      .update-card:first-child,
      .contact-card:first-child,
      .device-card {
        transform: none;
        margin-top: 0;
      }

      .download-card,
      .download-card:hover {
        --download-offset: 0px;
        transform: none;
      }

      .chat-grid {
        min-height: 620px;
      }

      .chat-bubble {
        width: 100%;
        left: 0 !important;
        right: auto !important;
      }

      .event-detail-body {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 820px) {
      .site-header {
        width: calc(100% - 16px);
        top: 8px;
        padding: 12px 14px;
        border-radius: 22px;
      }

      .nav {
        display: none;
      }

      .hero {
        padding-top: 122px;
      }

      .hero-panel,
      .device-card,
      .update-card,
      .download-card,
      .faq-card,
      .contact-card,
      .membership-hero-copy,
      .membership-summary-card,
      .membership-info-card,
      .membership-plan-card,
      .purchase-modal-card,
      .membership-center-board,
      .membership-hero-shell {
        padding: 24px;
      }

      .membership-hero {
        padding-top: 128px;
      }

      .membership-center-section {
        padding-top: 128px;
      }

      .membership-title {
        font-size: 36px;
      }

      .membership-top-points span {
        justify-content: flex-start;
      }

      .membership-price-row {
        flex-direction: column;
        align-items: flex-start;
      }

      .membership-plan-card.featured-plan {
        transform: none;
      }

      .purchase-order-grid {
        grid-template-columns: 1fr;
      }

      .purchase-qr-wrap {
        min-height: auto;
      }

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

      .section {
        padding-top: 84px;
      }

      .section-head {
        margin-bottom: 28px;
      }

      .device-stage {
        min-height: 320px;
        padding: 20px;
      }

      #devices .device-stage {
        min-height: 550px;
      }

      .hero-device-art {
        inset: 20px;
        padding: 10px;
        border-radius: 26px;
      }

      .hero-device-art img {
        width: 112%;
        transform: scale(1);
      }

      .scene-showcase {
        padding: 16px;
        border-radius: 26px;
      }

      .mobile-showcase {
        inset: 0 18px;
        max-width: 340px;
        padding: 14px 12px;
        border-radius: 26px;
      }

      .scene-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }

      .scene-feature-title {
        font-size: 20px;
      }

      .scene-feature-index {
        padding: 8px 12px;
      }

      .scene-shot-card {
        padding: 10px;
        border-radius: 22px;
      }

      .scene-shot-image {
        border-radius: 16px;
      }

      .scene-shot.is-middle {
        transform: translate3d(18px, 14px, 0) scale(.93);
      }

      .scene-shot.is-back {
        transform: translate3d(32px, 26px, 0) scale(.88);
      }

      .scene-shot.is-rest {
        transform: translate3d(44px, 38px, 0) scale(.82);
      }

      .mobile-shot.is-middle {
        transform: translate3d(12px, 14px, 0) scale(.95);
      }

      .mobile-shot.is-back {
        transform: translate3d(22px, 28px, 0) scale(.9);
      }

      .mobile-shot.is-rest {
        transform: translate3d(30px, 38px, 0) scale(.84);
      }

      .tablet-showcase {
        inset: 0 18px;
        max-width: 100%;
        padding: 14px 12px;
        border-radius: 26px;
      }

      .tablet-shot.is-middle {
        transform: translate3d(12px, 14px, 0) scale(.95);
      }

      .tablet-shot.is-back {
        transform: translate3d(22px, 28px, 0) scale(.9);
      }

      .tablet-shot.is-rest {
        transform: translate3d(30px, 38px, 0) scale(.84);
      }

      .device.desktop {
        width: 84%;
        height: 48%;
        left: 8%;
      }

      .device.phone {
        width: 22%;
        height: 40%;
      }

      .device.pad {
        width: 42%;
        height: 24%;
      }

      .hero-actions,
      .nav-actions {
        flex-wrap: wrap;
      }
    }