/* roulang page: index */
:root {
      --primary: #1769ff;
      --primary-dark: #0b46c7;
      --primary-soft: #eaf2ff;
      --secondary: #00b7d8;
      --accent: #ffb23e;
      --ink: #0f172a;
      --text: #263247;
      --muted: #667085;
      --weak: #8a94a6;
      --line: #dfe7f3;
      --line-soft: #eef3fb;
      --bg: #f7fbff;
      --surface: #ffffff;
      --surface-2: #f0f7ff;
      --shadow-sm: 0 8px 22px rgba(15, 44, 92, .08);
      --shadow-md: 0 18px 45px rgba(15, 44, 92, .12);
      --shadow-lg: 0 30px 80px rgba(23, 105, 255, .16);
      --radius-xs: 10px;
      --radius-sm: 14px;
      --radius-md: 22px;
      --radius-lg: 32px;
      --container: 1180px;
      --nav-height: 74px;
      --ease: cubic-bezier(.22, 1, .36, 1);
    }

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

    html {
      scroll-behavior: smooth;
      text-size-adjust: 100%;
    }

    body {
      min-height: 100vh;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      line-height: 1.65;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(23, 105, 255, .12), transparent 30%),
        radial-gradient(circle at 90% 18%, rgba(0, 183, 216, .13), transparent 28%),
        linear-gradient(180deg, #f7fbff 0%, #ffffff 44%, #f6faff 100%);
      overflow-x: hidden;
    }

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

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

    button, input, textarea {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
      background: none;
    }

    ::selection {
      color: #fff;
      background: var(--primary);
    }

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

    .skip-link {
      position: absolute;
      left: -999px;
      top: 14px;
      z-index: 999;
      padding: 10px 14px;
      border-radius: 999px;
      background: var(--ink);
      color: #fff;
    }

    .skip-link:focus {
      left: 20px;
    }

    .site-header {
      position: sticky;
      top: 16px;
      z-index: 100;
      padding: 14px 0 2px;
      pointer-events: none;
    }

    .nav-shell {
      height: var(--nav-height);
      border: 1px solid rgba(223, 231, 243, .88);
      border-radius: 999px;
      background: rgba(255, 255, 255, .86);
      box-shadow: var(--shadow-sm);
      backdrop-filter: blur(18px);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 10px 12px 10px 20px;
      pointer-events: auto;
      transition: box-shadow .25s var(--ease), transform .25s var(--ease), background .25s var(--ease);
    }

    .nav-shell:hover {
      box-shadow: var(--shadow-md);
      background: rgba(255, 255, 255, .94);
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: max-content;
      font-weight: 900;
      letter-spacing: -.02em;
      color: var(--ink);
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 12px 28px rgba(23, 105, 255, .26);
      font-size: 18px;
      font-weight: 900;
    }

    .brand-text {
      font-size: 18px;
      white-space: nowrap;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      list-style: none;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      height: 44px;
      padding: 0 18px;
      border-radius: 999px;
      color: var(--muted);
      font-size: 15px;
      font-weight: 700;
      transition: color .22s var(--ease), background .22s var(--ease), transform .22s var(--ease);
    }

    .nav-link:hover {
      color: var(--primary);
      background: var(--primary-soft);
      transform: translateY(-1px);
    }

    .nav-link.active {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 10px 22px rgba(23, 105, 255, .22);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .nav-search {
      width: 210px;
      height: 44px;
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 0 14px;
      border: 1px solid var(--line-soft);
      border-radius: 999px;
      background: #f8fbff;
      color: var(--weak);
      transition: border-color .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease);
    }

    .nav-search:focus-within {
      border-color: rgba(23, 105, 255, .55);
      box-shadow: 0 0 0 4px rgba(23, 105, 255, .12);
      background: #fff;
    }

    .nav-search input {
      width: 100%;
      border: 0;
      outline: 0;
      background: transparent;
      color: var(--text);
      font-size: 14px;
    }

    .nav-search input::placeholder {
      color: var(--weak);
    }

    .nav-cta {
      height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0 18px;
      border-radius: 999px;
      color: #fff;
      font-weight: 800;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: 0 12px 26px rgba(23, 105, 255, .22);
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), filter .22s var(--ease);
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(23, 105, 255, .30);
      filter: saturate(1.05);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      border: 1px solid var(--line-soft);
      background: #fff;
      color: var(--ink);
      align-items: center;
      justify-content: center;
    }

    .menu-toggle span {
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: currentColor;
      position: relative;
      transition: transform .22s var(--ease), background .22s var(--ease);
    }

    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: currentColor;
      transition: transform .22s var(--ease), top .22s var(--ease);
    }

    .menu-toggle span::before {
      top: -6px;
    }

    .menu-toggle span::after {
      top: 6px;
    }

    .menu-toggle.is-open span {
      background: transparent;
    }

    .menu-toggle.is-open span::before {
      top: 0;
      transform: rotate(45deg);
    }

    .menu-toggle.is-open span::after {
      top: 0;
      transform: rotate(-45deg);
    }

    main {
      position: relative;
    }

    .section {
      padding: 84px 0;
      position: relative;
    }

    .section.compact {
      padding: 64px 0;
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 34px;
    }

    .section-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
      padding: 7px 12px;
      border: 1px solid rgba(23, 105, 255, .14);
      border-radius: 999px;
      color: var(--primary-dark);
      background: rgba(234, 242, 255, .78);
      font-size: 13px;
      font-weight: 900;
    }

    .section-title {
      color: var(--ink);
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.14;
      letter-spacing: -.04em;
      margin-bottom: 14px;
    }

    .section-desc {
      color: var(--muted);
      font-size: 17px;
      max-width: 700px;
    }

    .hero {
      padding: 84px 0 78px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 5fr) minmax(420px, 7fr);
      gap: 58px;
      align-items: center;
    }

    .hero-copy {
      position: relative;
      z-index: 2;
    }

    .hero-badge {
      width: fit-content;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 9px 14px;
      border: 1px solid rgba(23, 105, 255, .16);
      border-radius: 999px;
      color: var(--primary-dark);
      background: rgba(255, 255, 255, .74);
      box-shadow: var(--shadow-sm);
      font-size: 14px;
      font-weight: 900;
      margin-bottom: 18px;
    }

    .pulse-dot {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: #12c48b;
      box-shadow: 0 0 0 6px rgba(18, 196, 139, .13);
    }

    h1 {
      color: var(--ink);
      font-size: clamp(36px, 5vw, 64px);
      line-height: 1.06;
      letter-spacing: -.055em;
      margin-bottom: 20px;
    }

    .hero-lead {
      font-size: 18px;
      color: var(--muted);
      max-width: 610px;
      margin-bottom: 28px;
    }

    .hero-actions {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 30px;
    }

    .btn {
      min-height: 50px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      padding: 13px 20px;
      border-radius: 999px;
      font-weight: 900;
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease);
      user-select: none;
    }

    .btn:focus-visible,
    .nav-link:focus-visible,
    .nav-cta:focus-visible,
    .menu-toggle:focus-visible,
    .plan-button:focus-visible,
    .subscribe-form button:focus-visible {
      outline: 4px solid rgba(23, 105, 255, .18);
      outline-offset: 3px;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: 0 18px 36px rgba(23, 105, 255, .28);
    }

    .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 24px 46px rgba(23, 105, 255, .34);
    }

    .btn-secondary {
      color: var(--primary-dark);
      border: 1px solid rgba(23, 105, 255, .18);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .btn-secondary:hover {
      transform: translateY(-3px);
      border-color: rgba(23, 105, 255, .34);
      box-shadow: var(--shadow-md);
      background: var(--primary-soft);
    }

    .hero-kpis {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      max-width: 600px;
    }

    .kpi {
      padding: 16px;
      border: 1px solid var(--line-soft);
      border-radius: var(--radius-sm);
      background: rgba(255, 255, 255, .72);
      box-shadow: var(--shadow-sm);
    }

    .kpi strong {
      display: block;
      color: var(--ink);
      font-size: 24px;
      line-height: 1.1;
      letter-spacing: -.04em;
      margin-bottom: 4px;
    }

    .kpi span {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .hero-visual {
      min-height: 548px;
      position: relative;
      transform: rotate(-2.2deg);
    }

    .hero-visual::before {
      content: "";
      position: absolute;
      inset: 42px -18px -18px 46px;
      border-radius: 40px;
      background: linear-gradient(135deg, rgba(23, 105, 255, .18), rgba(0, 183, 216, .12));
      transform: rotate(5deg);
      filter: blur(.2px);
    }

    .cover-stage {
      position: relative;
      height: 548px;
      overflow: hidden;
      border: 1px solid rgba(223, 231, 243, .82);
      border-radius: 42px;
      background:
        linear-gradient(125deg, rgba(4, 20, 50, .38), rgba(23, 105, 255, .14) 38%, rgba(0, 183, 216, .18)),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1100' height='720' viewBox='0 0 1100 720'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' x2='1' y1='0' y2='1'%3E%3Cstop stop-color='%231769ff'/%3E%3Cstop offset='1' stop-color='%2300b7d8'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='1100' height='720' fill='%23edf6ff'/%3E%3Ccircle cx='840' cy='145' r='190' fill='%23d8ecff'/%3E%3Ccircle cx='260' cy='560' r='245' fill='%23e7f2ff'/%3E%3Cpath d='M0 492C155 416 300 427 436 491C596 566 736 568 1100 396V720H0Z' fill='%23d4eaff'/%3E%3Cpath d='M97 162h312a38 38 0 0 1 38 38v188a38 38 0 0 1-38 38H97a38 38 0 0 1-38-38V200a38 38 0 0 1 38-38Z' fill='%23ffffff' opacity='.82'/%3E%3Cpath d='M703 214h267a32 32 0 0 1 32 32v326a32 32 0 0 1-32 32H703a32 32 0 0 1-32-32V246a32 32 0 0 1 32-32Z' fill='%23ffffff' opacity='.74'/%3E%3Cpath d='M165 226l142 82-142 82z' fill='url(/%23g)' opacity='.9'/%3E%3Crect x='720' y='270' width='210' height='18' rx='9' fill='%231769ff' opacity='.72'/%3E%3Crect x='720' y='322' width='170' height='15' rx='7.5' fill='%2300b7d8' opacity='.6'/%3E%3Crect x='720' y='369' width='226' height='15' rx='7.5' fill='%231769ff' opacity='.28'/%3E%3Crect x='720' y='416' width='148' height='15' rx='7.5' fill='%231769ff' opacity='.22'/%3E%3C/svg%3E");
      background-size: cover;
      background-position: center;
      box-shadow: var(--shadow-lg);
    }

    .cover-stage::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 38%, rgba(4, 14, 34, .62));
      pointer-events: none;
    }

    .visual-caption {
      position: absolute;
      left: 28px;
      right: 28px;
      bottom: 26px;
      z-index: 2;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 16px;
      align-items: end;
      color: #fff;
      transform: rotate(2.2deg);
    }

    .visual-caption h2 {
      font-size: 28px;
      line-height: 1.16;
      letter-spacing: -.04em;
      margin-bottom: 8px;
    }

    .visual-caption p {
      color: rgba(255, 255, 255, .82);
      font-size: 14px;
      max-width: 410px;
    }

    .status-card {
      min-width: 185px;
      padding: 16px;
      border: 1px solid rgba(255, 255, 255, .22);
      border-radius: 20px;
      background: rgba(255, 255, 255, .13);
      backdrop-filter: blur(16px);
    }

    .status-row {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      font-size: 13px;
      color: rgba(255, 255, 255, .78);
      margin-bottom: 10px;
    }

    .status-bar {
      height: 8px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .20);
      overflow: hidden;
    }

    .status-bar i {
      display: block;
      height: 100%;
      width: 76%;
      border-radius: inherit;
      background: linear-gradient(90deg, #fff, #83e6ff);
    }

    .floating-tag {
      position: absolute;
      z-index: 3;
      right: -16px;
      top: 72px;
      padding: 14px 18px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: #fff;
      box-shadow: var(--shadow-md);
      font-size: 14px;
      font-weight: 900;
      transform: rotate(4deg);
    }

    .app-strip {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 22px;
      align-items: stretch;
    }

    .app-card {
      padding: 30px;
      border: 1px solid var(--line-soft);
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, #fff, #f3f9ff);
      box-shadow: var(--shadow-md);
      overflow: hidden;
      position: relative;
    }

    .app-card::after {
      content: "";
      position: absolute;
      width: 240px;
      height: 240px;
      right: -90px;
      top: -100px;
      border-radius: 50%;
      background: rgba(23, 105, 255, .12);
    }

    .app-card h2,
    .service-block h2,
    .about-card h2,
    .news-panel h2,
    .faq-box h2,
    .cta-panel h2 {
      color: var(--ink);
      font-size: clamp(26px, 3vw, 38px);
      line-height: 1.18;
      letter-spacing: -.035em;
      margin-bottom: 12px;
    }

    .app-card p,
    .service-block p,
    .about-card p,
    .news-panel p,
    .faq-box p,
    .cta-panel p {
      color: var(--muted);
      font-size: 16px;
    }

    .device-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      margin-top: 22px;
    }

    .device {
      padding: 18px 14px;
      border: 1px solid rgba(223, 231, 243, .85);
      border-radius: 20px;
      background: rgba(255, 255, 255, .78);
      box-shadow: 0 10px 24px rgba(15, 44, 92, .06);
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
    }

    .device:hover {
      transform: translateY(-4px);
      border-color: rgba(23, 105, 255, .28);
      box-shadow: var(--shadow-md);
    }

    .device-icon {
      width: 40px;
      height: 40px;
      display: grid;
      place-items: center;
      margin-bottom: 12px;
      border-radius: 14px;
      color: var(--primary);
      background: var(--primary-soft);
      font-size: 20px;
    }

    .device strong {
      display: block;
      color: var(--ink);
      margin-bottom: 4px;
    }

    .device span {
      display: block;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.5;
    }

    .quick-panel {
      padding: 30px;
      border-radius: var(--radius-lg);
      color: #fff;
      background:
        radial-gradient(circle at 88% 18%, rgba(255, 255, 255, .25), transparent 25%),
        linear-gradient(135deg, var(--primary-dark), var(--primary));
      box-shadow: var(--shadow-lg);
      position: relative;
      overflow: hidden;
    }

    .quick-panel h3 {
      font-size: 28px;
      line-height: 1.2;
      letter-spacing: -.03em;
      margin-bottom: 12px;
    }

    .quick-panel p {
      color: rgba(255, 255, 255, .78);
      margin-bottom: 24px;
    }

    .check-list {
      display: grid;
      gap: 12px;
      list-style: none;
    }

    .check-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: rgba(255, 255, 255, .9);
      font-weight: 700;
    }

    .check-list li::before {
      content: "✓";
      width: 22px;
      height: 22px;
      flex: 0 0 22px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: var(--primary-dark);
      background: #fff;
      font-size: 13px;
      font-weight: 900;
      margin-top: 2px;
    }

    .services-wrap {
      display: grid;
      grid-template-columns: .85fr 1.15fr;
      gap: 28px;
      align-items: start;
    }

    .service-block {
      position: sticky;
      top: 110px;
      padding: 34px;
      border: 1px solid var(--line-soft);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-md);
    }

    .service-metrics {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin-top: 24px;
    }

    .metric {
      padding: 16px;
      border-radius: 18px;
      background: var(--surface-2);
      border: 1px solid rgba(23, 105, 255, .08);
    }

    .metric b {
      display: block;
      color: var(--primary-dark);
      font-size: 24px;
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric span {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .service-list {
      display: grid;
      gap: 16px;
    }

    .service-item {
      display: grid;
      grid-template-columns: 64px 1fr;
      gap: 18px;
      padding: 22px;
      border: 1px solid var(--line-soft);
      border-radius: 24px;
      background: rgba(255, 255, 255, .88);
      box-shadow: var(--shadow-sm);
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
    }

    .service-item:hover {
      transform: translateX(6px);
      border-color: rgba(23, 105, 255, .22);
      box-shadow: var(--shadow-md);
    }

    .service-no {
      width: 64px;
      height: 64px;
      display: grid;
      place-items: center;
      border-radius: 20px;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      font-weight: 900;
      box-shadow: 0 14px 24px rgba(23, 105, 255, .20);
    }

    .service-item h3 {
      color: var(--ink);
      font-size: 20px;
      margin-bottom: 6px;
    }

    .service-item p {
      color: var(--muted);
      font-size: 15px;
    }

    .about-band {
      border-radius: 38px;
      overflow: hidden;
      background: linear-gradient(135deg, #071935, #123f8f);
      box-shadow: var(--shadow-lg);
    }

    .about-inner {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0;
      min-height: 420px;
    }

    .about-card {
      padding: 44px;
      color: #fff;
    }

    .about-card h2 {
      color: #fff;
    }

    .about-card p {
      color: rgba(255, 255, 255, .78);
    }

    .about-points {
      margin-top: 24px;
      display: grid;
      gap: 14px;
      list-style: none;
    }

    .about-points li {
      padding: 15px 16px;
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: 18px;
      background: rgba(255, 255, 255, .08);
      color: rgba(255, 255, 255, .9);
      font-weight: 700;
    }

    .timeline {
      padding: 44px;
      background:
        radial-gradient(circle at 80% 20%, rgba(0, 183, 216, .25), transparent 28%),
        rgba(255, 255, 255, .05);
    }

    .timeline-item {
      position: relative;
      padding-left: 30px;
      padding-bottom: 28px;
      border-left: 1px solid rgba(255, 255, 255, .22);
    }

    .timeline-item:last-child {
      padding-bottom: 0;
    }

    .timeline-item::before {
      content: "";
      position: absolute;
      left: -7px;
      top: 3px;
      width: 13px;
      height: 13px;
      border-radius: 50%;
      background: #fff;
      box-shadow: 0 0 0 7px rgba(255, 255, 255, .12);
    }

    .timeline-item strong {
      display: block;
      color: #fff;
      font-size: 18px;
      margin-bottom: 6px;
    }

    .timeline-item span {
      display: block;
      color: rgba(255, 255, 255, .72);
      font-size: 14px;
    }

    .topic-layout {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 24px;
      align-items: stretch;
    }

    .topic-main {
      padding: 30px;
      border: 1px solid var(--line-soft);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-md);
    }

    .topic-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
      margin-top: 22px;
    }

    .topic-card {
      min-height: 162px;
      padding: 22px;
      border-radius: 24px;
      border: 1px solid var(--line-soft);
      background:
        linear-gradient(180deg, rgba(234, 242, 255, .68), rgba(255, 255, 255, .96));
      transition: transform .22s var(--ease), box-shadow .22s var(--ease);
    }

    .topic-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
    }

    .topic-card .tag {
      display: inline-flex;
      padding: 5px 10px;
      margin-bottom: 12px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: var(--primary-soft);
      font-size: 12px;
      font-weight: 900;
    }

    .topic-card h3 {
      color: var(--ink);
      font-size: 20px;
      margin-bottom: 8px;
    }

    .topic-card p {
      color: var(--muted);
      font-size: 14px;
    }

    .quote-panel {
      padding: 30px;
      border-radius: var(--radius-lg);
      border: 1px solid rgba(23, 105, 255, .12);
      background: linear-gradient(135deg, #eff7ff, #fff);
      box-shadow: var(--shadow-sm);
    }

    .quote-mark {
      width: 58px;
      height: 58px;
      display: grid;
      place-items: center;
      border-radius: 20px;
      color: #fff;
      background: var(--primary);
      font-size: 34px;
      font-weight: 900;
      margin-bottom: 20px;
    }

    .quote-panel blockquote {
      color: var(--ink);
      font-size: 22px;
      line-height: 1.45;
      letter-spacing: -.02em;
      font-weight: 900;
      margin-bottom: 18px;
    }

    .quote-panel p {
      color: var(--muted);
    }

    .plan-wrap {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
      margin-top: 28px;
    }

    .plan-card {
      padding: 26px;
      border: 1px solid var(--line-soft);
      border-radius: 28px;
      background: #fff;
      box-shadow: var(--shadow-sm);
      position: relative;
      transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
    }

    .plan-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(23, 105, 255, .22);
    }

    .plan-card.featured {
      border-color: rgba(23, 105, 255, .35);
      box-shadow: var(--shadow-lg);
      transform: translateY(-8px);
    }

    .plan-badge {
      position: absolute;
      top: 18px;
      right: 18px;
      padding: 6px 10px;
      border-radius: 999px;
      color: #fff;
      background: var(--accent);
      font-size: 12px;
      font-weight: 900;
    }

    .plan-card h3 {
      color: var(--ink);
      font-size: 23px;
      margin-bottom: 10px;
    }

    .plan-price {
      display: flex;
      align-items: baseline;
      gap: 6px;
      margin-bottom: 14px;
      color: var(--primary-dark);
    }

    .plan-price strong {
      font-size: 34px;
      letter-spacing: -.05em;
    }

    .plan-card p {
      color: var(--muted);
      font-size: 14px;
      min-height: 48px;
      margin-bottom: 18px;
    }

    .plan-features {
      display: grid;
      gap: 10px;
      list-style: none;
      margin-bottom: 22px;
    }

    .plan-features li {
      display: flex;
      gap: 9px;
      color: var(--text);
      font-size: 14px;
      font-weight: 700;
    }

    .plan-features li::before {
      content: "•";
      color: var(--primary);
      font-size: 22px;
      line-height: 18px;
    }

    .plan-button {
      width: 100%;
      min-height: 48px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      color: var(--primary-dark);
      background: var(--primary-soft);
      font-weight: 900;
      transition: transform .22s var(--ease), background .22s var(--ease), color .22s var(--ease);
    }

    .plan-button:hover {
      transform: translateY(-2px);
      color: #fff;
      background: var(--primary);
    }

    .plan-card.featured .plan-button {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-dark));
      box-shadow: 0 16px 30px rgba(23, 105, 255, .22);
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(330px, .8fr);
      gap: 24px;
    }

    .news-panel,
    .faq-box {
      padding: 32px;
      border: 1px solid var(--line-soft);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-md);
    }

    .news-list {
      display: grid;
      gap: 12px;
      margin-top: 22px;
      list-style: none;
    }

    .news-link {
      display: grid;
      grid-template-columns: 96px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 16px;
      border: 1px solid var(--line-soft);
      border-radius: 20px;
      background: #fff;
      transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
    }

    .news-link:hover {
      transform: translateX(5px);
      border-color: rgba(23, 105, 255, .22);
      box-shadow: var(--shadow-sm);
    }

    .news-date {
      color: var(--primary-dark);
      background: var(--primary-soft);
      border-radius: 14px;
      padding: 9px 10px;
      text-align: center;
      font-size: 13px;
      font-weight: 900;
    }

    .news-link strong {
      display: block;
      color: var(--ink);
      margin-bottom: 4px;
      line-height: 1.4;
    }

    .news-link span {
      display: block;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.5;
    }

    .news-arrow {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: var(--primary);
      background: var(--primary-soft);
      transition: transform .22s var(--ease), background .22s var(--ease), color .22s var(--ease);
    }

    .news-link:hover .news-arrow {
      transform: translateX(3px);
      color: #fff;
      background: var(--primary);
    }

    .recommend-card {
      padding: 30px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(180deg, rgba(255, 255, 255, .92), rgba(240, 247, 255, .94)),
        radial-gradient(circle at 80% 10%, rgba(23, 105, 255, .14), transparent 30%);
      border: 1px solid var(--line-soft);
      box-shadow: var(--shadow-sm);
    }

    .rank-list {
      list-style: none;
      display: grid;
      gap: 14px;
      margin-top: 22px;
    }

    .rank-list li {
      display: grid;
      grid-template-columns: 34px 1fr;
      gap: 12px;
      align-items: start;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--line-soft);
    }

    .rank-list li:last-child {
      border-bottom: 0;
      padding-bottom: 0;
    }

    .rank-no {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      font-weight: 900;
      font-size: 13px;
    }

    .rank-list strong {
      display: block;
      color: var(--ink);
      margin-bottom: 3px;
    }

    .rank-list span {
      color: var(--muted);
      font-size: 13px;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: .82fr 1.18fr;
      gap: 24px;
      align-items: start;
    }

    .faq-list {
      display: grid;
      gap: 14px;
    }

    .faq-item {
      border: 1px solid var(--line-soft);
      border-radius: 22px;
      background: #fff;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: center;
      padding: 20px 22px;
      color: var(--ink);
      text-align: left;
      font-weight: 900;
    }

    .faq-question i {
      width: 30px;
      height: 30px;
      display: grid;
      place-items: center;
      flex: 0 0 30px;
      border-radius: 50%;
      color: var(--primary);
      background: var(--primary-soft);
      font-style: normal;
      transition: transform .22s var(--ease), background .22s var(--ease), color .22s var(--ease);
    }

    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      color: var(--muted);
      font-size: 15px;
    }

    .faq-item.is-open .faq-answer {
      display: block;
    }

    .faq-item.is-open .faq-question i {
      transform: rotate(45deg);
      color: #fff;
      background: var(--primary);
    }

    .cta {
      padding-top: 30px;
    }

    .cta-panel {
      border-radius: 38px;
      padding: 42px;
      color: #fff;
      background:
        radial-gradient(circle at 14% 20%, rgba(255, 255, 255, .22), transparent 25%),
        radial-gradient(circle at 88% 16%, rgba(0, 183, 216, .35), transparent 22%),
        linear-gradient(135deg, #0b2865, var(--primary));
      box-shadow: var(--shadow-lg);
      display: grid;
      grid-template-columns: 1fr .85fr;
      gap: 30px;
      align-items: center;
      overflow: hidden;
      position: relative;
    }

    .cta-panel h2 {
      color: #fff;
    }

    .cta-panel p {
      color: rgba(255, 255, 255, .80);
      max-width: 650px;
    }

    .subscribe-form {
      display: flex;
      gap: 10px;
      padding: 8px;
      border: 1px solid rgba(255, 255, 255, .20);
      border-radius: 999px;
      background: rgba(255, 255, 255, .14);
      backdrop-filter: blur(14px);
    }

    .subscribe-form input {
      min-width: 0;
      flex: 1;
      border: 0;
      outline: 0;
      padding: 0 14px;
      color: #fff;
      background: transparent;
    }

    .subscribe-form input::placeholder {
      color: rgba(255, 255, 255, .64);
    }

    .subscribe-form button {
      flex: 0 0 auto;
      min-height: 48px;
      padding: 0 18px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: #fff;
      font-weight: 900;
      transition: transform .22s var(--ease), box-shadow .22s var(--ease);
    }

    .subscribe-form button:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 28px rgba(0, 0, 0, .18);
    }

    .site-footer {
      padding: 54px 0 34px;
      background: #071324;
      color: rgba(255, 255, 255, .72);
      margin-top: 84px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 36px;
      align-items: start;
      padding-bottom: 30px;
      border-bottom: 1px solid rgba(255, 255, 255, .10);
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-size: 20px;
      font-weight: 900;
      margin-bottom: 14px;
    }

    .footer-brand .brand-mark {
      box-shadow: none;
    }

    .footer-text {
      max-width: 620px;
      color: rgba(255, 255, 255, .66);
    }

    .footer-links {
      display: flex;
      justify-content: flex-end;
      gap: 12px;
      flex-wrap: wrap;
    }

    .footer-links a {
      padding: 10px 14px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .07);
      color: rgba(255, 255, 255, .78);
      font-weight: 800;
      transition: background .22s var(--ease), color .22s var(--ease), transform .22s var(--ease);
    }

    .footer-links a:hover {
      transform: translateY(-2px);
      background: rgba(255, 255, 255, .14);
      color: #fff;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      padding-top: 22px;
      color: rgba(255, 255, 255, .52);
      font-size: 14px;
    }

    @media (max-width: 1080px) {
      .nav-search {
        display: none;
      }

      .hero-grid,
      .app-strip,
      .services-wrap,
      .topic-layout,
      .news-layout,
      .faq-grid,
      .cta-panel {
        grid-template-columns: 1fr;
      }

      .hero-visual {
        min-height: 480px;
      }

      .cover-stage {
        height: 480px;
      }

      .service-block {
        position: static;
      }

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

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

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

    @media (max-width: 768px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .site-header {
        top: 8px;
        padding-top: 8px;
      }

      .nav-shell {
        height: auto;
        min-height: 66px;
        border-radius: 24px;
        padding: 10px;
        align-items: flex-start;
        flex-wrap: wrap;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 13px;
      }

      .brand-text {
        font-size: 16px;
      }

      .menu-toggle {
        display: inline-flex;
        margin-left: auto;
      }

      .nav-menu,
      .nav-actions {
        width: 100%;
        display: none;
      }

      .nav-shell.is-open .nav-menu,
      .nav-shell.is-open .nav-actions {
        display: flex;
      }

      .nav-menu {
        flex-direction: column;
        align-items: stretch;
        padding-top: 8px;
      }

      .nav-link {
        width: 100%;
        justify-content: center;
      }

      .nav-actions {
        justify-content: stretch;
      }

      .nav-cta {
        width: 100%;
      }

      .hero {
        padding-top: 58px;
      }

      .section {
        padding: 62px 0;
      }

      .hero-grid {
        gap: 34px;
      }

      .hero-kpis,
      .device-grid,
      .topic-grid,
      .service-metrics {
        grid-template-columns: 1fr;
      }

      .hero-visual {
        min-height: 390px;
        transform: rotate(0);
      }

      .cover-stage {
        height: 390px;
        border-radius: 30px;
      }

      .visual-caption {
        grid-template-columns: 1fr;
        transform: none;
        left: 20px;
        right: 20px;
      }

      .floating-tag {
        right: 10px;
        top: 20px;
        transform: none;
      }

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

      .about-card,
      .timeline,
      .cta-panel {
        padding: 28px;
      }

      .news-link {
        grid-template-columns: 1fr auto;
      }

      .news-date {
        grid-column: 1 / -1;
        width: fit-content;
      }

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

      .footer-links {
        justify-content: flex-start;
      }
    }

    @media (max-width: 520px) {
      h1 {
        font-size: 35px;
      }

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

      .hero-actions,
      .subscribe-form {
        flex-direction: column;
        align-items: stretch;
      }

      .btn,
      .subscribe-form button {
        width: 100%;
      }

      .app-card,
      .quick-panel,
      .service-block,
      .topic-main,
      .quote-panel,
      .news-panel,
      .faq-box,
      .recommend-card {
        padding: 22px;
        border-radius: 24px;
      }

      .cover-stage {
        height: 340px;
      }

      .visual-caption h2 {
        font-size: 22px;
      }

      .status-card {
        min-width: 0;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }