/* roulang page: index */
:root {
      --bg-0: #070A14;
      --bg-1: #09111F;
      --bg-2: #0B1020;
      --panel: rgba(255, 255, 255, .075);
      --panel-strong: rgba(255, 255, 255, .105);
      --panel-soft: rgba(255, 255, 255, .045);
      --line: rgba(255, 255, 255, .13);
      --line-strong: rgba(34, 211, 238, .34);
      --text: #EAF0FF;
      --muted: #AAB6D3;
      --weak: #74809E;
      --primary: #2F6BFF;
      --primary-2: #3B82F6;
      --cyan: #22D3EE;
      --mint: #35F2C4;
      --violet: #7C5CFF;
      --warning: #F7C948;
      --radius-xl: 28px;
      --radius-lg: 22px;
      --radius-md: 16px;
      --radius-pill: 999px;
      --shadow: 0 24px 80px rgba(0, 0, 0, .42);
      --shadow-soft: 0 18px 50px rgba(0, 0, 0, .28);
      --glow: 0 0 36px rgba(34, 211, 238, .22), 0 0 60px rgba(47, 107, 255, .16);
      --container: 1200px;
      --section: 108px;
      --ease: all .28s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      overflow-x: hidden;
    }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(47, 107, 255, .24), transparent 34%),
        radial-gradient(circle at 84% 16%, rgba(34, 211, 238, .16), transparent 30%),
        radial-gradient(circle at 50% 86%, rgba(124, 92, 255, .15), transparent 34%),
        linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 46%, var(--bg-2) 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: -2;
      background-image:
        linear-gradient(rgba(255, 255, 255, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,.82), rgba(0,0,0,.26), rgba(0,0,0,.72));
    }

    body::after {
      content: "";
      position: fixed;
      width: 520px;
      height: 520px;
      right: -180px;
      top: 220px;
      z-index: -1;
      pointer-events: none;
      background: radial-gradient(circle, rgba(53, 242, 196, .12), rgba(47, 107, 255, .06) 44%, transparent 70%);
      filter: blur(8px);
      animation: auraMove 9s ease-in-out infinite alternate;
    }

    @keyframes auraMove {
      from { transform: translate3d(0, 0, 0) scale(1); opacity: .8; }
      to { transform: translate3d(-40px, 34px, 0) scale(1.08); opacity: 1; }
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--ease);
    }

    a:hover {
      color: var(--cyan);
    }

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

    button,
    input,
    textarea {
      font-family: inherit;
    }

    ::selection {
      background: rgba(34, 211, 238, .28);
      color: #fff;
    }

    .container,
    .container-xl {
      max-width: var(--container);
    }

    .section {
      position: relative;
      padding: var(--section) 0;
    }

    .section-tight {
      padding: 78px 0;
    }

    .section-title {
      max-width: 820px;
      margin-bottom: 42px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 8px 13px;
      border: 1px solid rgba(34, 211, 238, .24);
      border-radius: var(--radius-pill);
      background: rgba(34, 211, 238, .075);
      color: #BFF8FF;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .02em;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .09);
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--cyan), var(--mint));
      box-shadow: 0 0 16px rgba(34, 211, 238, .82);
    }

    h1,
    h2,
    h3,
    h4 {
      color: var(--text);
      letter-spacing: -.035em;
      line-height: 1.18;
    }

    h1 {
      font-size: clamp(38px, 5vw, 64px);
      font-weight: 800;
    }

    h2 {
      font-size: clamp(30px, 3.8vw, 42px);
      font-weight: 800;
    }

    h3 {
      font-size: 24px;
      font-weight: 760;
    }

    p {
      color: var(--muted);
      margin-bottom: 0;
    }

    .lead-text {
      font-size: 18px;
      line-height: 1.9;
      color: #C4CDEA;
    }

    .text-gradient {
      background: linear-gradient(95deg, #FFFFFF, #D7E5FF 36%, #7DEEFF 72%, #C2B5FF);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1030;
      border-bottom: 1px solid rgba(255, 255, 255, .09);
      background: rgba(7, 10, 20, .68);
      backdrop-filter: blur(18px);
      box-shadow: 0 12px 40px rgba(0, 0, 0, .18);
    }

    .site-navbar {
      min-height: 76px;
      padding: 12px 0;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 800;
      letter-spacing: -.03em;
      color: var(--text);
    }

    .brand-mark {
      position: relative;
      width: 42px;
      height: 42px;
      flex: 0 0 42px;
      border-radius: 15px;
      background:
        linear-gradient(135deg, rgba(47,107,255,.95), rgba(34,211,238,.82)),
        radial-gradient(circle at 72% 22%, rgba(255,255,255,.82), transparent 28%);
      box-shadow: var(--glow);
      overflow: hidden;
    }

    .brand-mark::before,
    .brand-mark::after {
      content: "";
      position: absolute;
      border-radius: 999px;
      background: rgba(7, 10, 20, .36);
    }

    .brand-mark::before {
      width: 26px;
      height: 7px;
      left: 8px;
      top: 12px;
      box-shadow: 0 11px 0 rgba(7, 10, 20, .36);
    }

    .brand-mark::after {
      width: 7px;
      height: 26px;
      right: 10px;
      top: 8px;
      background: rgba(255, 255, 255, .34);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.12;
    }

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

    .brand-sub {
      font-size: 12px;
      font-weight: 600;
      color: var(--weak);
      letter-spacing: .02em;
      margin-top: 3px;
    }

    .navbar-toggler {
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 999px;
      width: 46px;
      height: 42px;
      padding: 0;
      color: var(--text);
      background: rgba(255, 255, 255, .065);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 4px rgba(34, 211, 238, .18);
    }

    .navbar-toggler-icon {
      width: 22px;
      height: 22px;
      background-image: none;
      position: relative;
    }

    .navbar-toggler-icon::before,
    .navbar-toggler-icon::after,
    .navbar-toggler-icon span {
      content: "";
      position: absolute;
      left: 2px;
      width: 18px;
      height: 2px;
      border-radius: 999px;
      background: var(--text);
    }

    .navbar-toggler-icon::before { top: 5px; }
    .navbar-toggler-icon::after { bottom: 5px; }
    .navbar-toggler-icon span { top: 10px; }

    .nav-pills-custom {
      gap: 6px;
      align-items: center;
    }

    .nav-link {
      position: relative;
      color: #C6D0EB;
      font-weight: 650;
      font-size: 14px;
      padding: 10px 14px !important;
      border-radius: var(--radius-pill);
    }

    .nav-link:hover,
    .nav-link:focus,
    .nav-link.active {
      color: #FFFFFF;
      background: rgba(255, 255, 255, .075);
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 5px;
      height: 2px;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--cyan), transparent);
    }

    .btn-brand,
    .btn-ghost,
    .btn-text {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      border-radius: var(--radius-pill);
      font-weight: 750;
      transition: var(--ease);
      border: 0;
      white-space: nowrap;
    }

    .btn-brand {
      padding: 13px 21px;
      color: #fff !important;
      background: linear-gradient(135deg, var(--primary), var(--cyan));
      box-shadow: 0 12px 34px rgba(47, 107, 255, .32), 0 0 30px rgba(34, 211, 238, .18);
    }

    .btn-brand:hover {
      transform: translateY(-3px);
      box-shadow: 0 18px 44px rgba(47, 107, 255, .42), 0 0 44px rgba(34, 211, 238, .28);
      color: #fff !important;
    }

    .btn-ghost {
      padding: 12px 20px;
      color: #DCE6FF !important;
      border: 1px solid rgba(255, 255, 255, .16);
      background: rgba(255, 255, 255, .055);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08);
    }

    .btn-ghost:hover {
      color: #fff !important;
      border-color: rgba(34, 211, 238, .46);
      background: rgba(34, 211, 238, .09);
      transform: translateY(-2px);
    }

    .btn-text {
      color: #AEEFFF;
      padding: 0;
      font-size: 15px;
    }

    .btn-text::after {
      content: "→";
      transition: var(--ease);
    }

    .btn-text:hover::after {
      transform: translateX(4px);
    }

    .btn-brand:focus-visible,
    .btn-ghost:focus-visible,
    .btn-text:focus-visible,
    .form-control:focus {
      outline: none;
      box-shadow: 0 0 0 4px rgba(34, 211, 238, .18), 0 0 0 1px rgba(34, 211, 238, .45);
    }

    .hero {
      position: relative;
      min-height: calc(100vh - 76px);
      display: flex;
      align-items: center;
      padding: 82px 0 68px;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background:
        radial-gradient(circle at 18% 40%, rgba(47, 107, 255, .2), transparent 36%),
        linear-gradient(115deg, rgba(255,255,255,.035), transparent 36%, rgba(34,211,238,.04));
    }

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

    .hero-title {
      margin: 22px 0 22px;
    }

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

    .trust-strip {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 38px;
    }

    .trust-item {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 10px 13px;
      border-radius: var(--radius-pill);
      border: 1px solid rgba(255,255,255,.12);
      background: rgba(255,255,255,.055);
      color: #D3DDF7;
      font-size: 14px;
      font-weight: 650;
    }

    .trust-dot {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--mint);
      box-shadow: 0 0 18px rgba(53,242,196,.72);
    }

    .hero-visual {
      position: relative;
      z-index: 1;
      min-height: 560px;
    }

    .dashboard-shell {
      position: relative;
      height: 560px;
      border-radius: 34px;
      padding: 22px;
      border: 1px solid rgba(255,255,255,.14);
      background:
        linear-gradient(180deg, rgba(255,255,255,.11), rgba(255,255,255,.045)),
        radial-gradient(circle at 20% 18%, rgba(34,211,238,.18), transparent 32%);
      backdrop-filter: blur(18px);
      box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.13);
      overflow: hidden;
    }

    .dashboard-shell::before {
      content: "";
      position: absolute;
      inset: 20px;
      border-radius: 26px;
      border: 1px solid rgba(34, 211, 238, .11);
      background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size: 34px 34px;
      opacity: .75;
    }

    .module-card {
      position: absolute;
      border-radius: 22px;
      border: 1px solid rgba(255,255,255,.14);
      background: rgba(8, 15, 31, .7);
      backdrop-filter: blur(16px);
      box-shadow: var(--shadow-soft), inset 0 1px 0 rgba(255,255,255,.1);
      padding: 18px;
    }

    .module-card .label {
      color: var(--weak);
      font-size: 12px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .module-card .value {
      font-size: 30px;
      font-weight: 850;
      letter-spacing: -.04em;
      line-height: 1;
    }

    .module-card .small {
      color: var(--muted);
      font-size: 13px;
      margin-top: 10px;
    }

    .module-main {
      left: 46px;
      top: 58px;
      width: 250px;
      height: 180px;
    }

    .module-flow {
      right: 38px;
      top: 92px;
      width: 190px;
      height: 150px;
    }

    .module-rank {
      left: 78px;
      bottom: 58px;
      width: 210px;
      height: 158px;
    }

    .module-status {
      right: 56px;
      bottom: 72px;
      width: 230px;
      height: 190px;
    }

    .progress-line {
      width: 100%;
      height: 9px;
      border-radius: 999px;
      overflow: hidden;
      background: rgba(255,255,255,.09);
      margin-top: 18px;
    }

    .progress-line span {
      display: block;
      width: 72%;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--primary), var(--cyan), var(--mint));
      box-shadow: 0 0 18px rgba(34,211,238,.46);
    }

    .node-chain {
      position: absolute;
      left: 30px;
      right: 30px;
      top: 278px;
      height: 60px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      z-index: 4;
    }

    .node-chain::before {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      top: 50%;
      height: 2px;
      background: linear-gradient(90deg, transparent, rgba(34,211,238,.7), rgba(124,92,255,.55), transparent);
      box-shadow: 0 0 18px rgba(34,211,238,.45);
    }

    .node {
      position: relative;
      z-index: 1;
      width: 18px;
      height: 18px;
      border-radius: 50%;
      background: var(--bg-1);
      border: 3px solid var(--cyan);
      box-shadow: 0 0 22px rgba(34,211,238,.62);
    }

    .mini-list {
      display: grid;
      gap: 8px;
      margin-top: 12px;
    }

    .mini-row {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      color: #C5D0EC;
      font-size: 13px;
      padding: 8px 0;
      border-bottom: 1px solid rgba(255,255,255,.08);
    }

    .orbit-badge {
      position: absolute;
      left: 50%;
      top: 50%;
      z-index: 5;
      transform: translate(-50%, -50%);
      width: 132px;
      height: 132px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      text-align: center;
      font-size: 15px;
      font-weight: 850;
      color: #fff;
      background:
        radial-gradient(circle, rgba(47,107,255,.72), rgba(34,211,238,.16) 62%, rgba(255,255,255,.04)),
        rgba(255,255,255,.08);
      border: 1px solid rgba(34,211,238,.38);
      box-shadow: 0 0 52px rgba(34,211,238,.26);
    }

    .glass-card {
      border: 1px solid var(--line);
      background: linear-gradient(180deg, var(--panel), rgba(255,255,255,.042));
      backdrop-filter: blur(16px);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-soft), inset 0 1px 0 rgba(255,255,255,.08);
      transition: var(--ease);
    }

    .glass-card:hover {
      transform: translateY(-5px);
      border-color: rgba(34, 211, 238, .32);
      background: linear-gradient(180deg, var(--panel-strong), rgba(255,255,255,.055));
      box-shadow: var(--shadow), 0 0 34px rgba(34,211,238,.12);
    }

    .capability-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr .85fr;
      gap: 18px;
    }

    .capability-card {
      padding: 26px;
      min-height: 240px;
      position: relative;
      overflow: hidden;
    }

    .capability-card.featured {
      grid-row: span 2;
      min-height: 500px;
      background:
        radial-gradient(circle at 24% 18%, rgba(34,211,238,.15), transparent 36%),
        linear-gradient(160deg, rgba(47,107,255,.16), rgba(255,255,255,.055));
    }

    .capability-card::after {
      content: "";
      position: absolute;
      width: 130px;
      height: 130px;
      right: -46px;
      bottom: -46px;
      border-radius: 38px;
      border: 1px solid rgba(34,211,238,.16);
      transform: rotate(18deg);
      background: rgba(34,211,238,.04);
    }

    .card-number {
      display: inline-flex;
      width: 42px;
      height: 42px;
      align-items: center;
      justify-content: center;
      border-radius: 15px;
      color: #fff;
      font-weight: 800;
      background: linear-gradient(135deg, rgba(47,107,255,.92), rgba(34,211,238,.76));
      box-shadow: 0 0 28px rgba(47,107,255,.22);
      margin-bottom: 20px;
    }

    .tag-list {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 22px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      padding: 6px 10px;
      border-radius: 999px;
      color: #CFEFFF;
      border: 1px solid rgba(34,211,238,.18);
      background: rgba(34,211,238,.065);
      font-size: 12px;
      font-weight: 700;
    }

    .data-band {
      position: relative;
      border-radius: 34px;
      padding: 28px;
      overflow: hidden;
      border: 1px solid rgba(255,255,255,.14);
      background:
        linear-gradient(90deg, rgba(47,107,255,.13), rgba(34,211,238,.055), rgba(124,92,255,.11)),
        rgba(255,255,255,.055);
      box-shadow: var(--shadow);
    }

    .data-band::before {
      content: "";
      position: absolute;
      left: 40px;
      right: 40px;
      top: 50%;
      height: 2px;
      background: linear-gradient(90deg, transparent, rgba(34,211,238,.42), rgba(124,92,255,.28), transparent);
    }

    .metric-card {
      position: relative;
      z-index: 1;
      height: 100%;
      padding: 24px;
      border-radius: 24px;
      border: 1px solid rgba(255,255,255,.12);
      background: rgba(7,10,20,.52);
      backdrop-filter: blur(14px);
    }

    .metric-value {
      display: block;
      margin-bottom: 8px;
      color: #FFFFFF;
      font-size: 34px;
      font-weight: 850;
      letter-spacing: -.04em;
    }

    .metric-name {
      color: #DDE7FF;
      font-weight: 760;
      margin-bottom: 8px;
    }

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

    .scenario-list {
      display: grid;
      gap: 12px;
    }

    .scenario-tab {
      padding: 18px 20px;
      border-radius: 18px;
      border: 1px solid rgba(255,255,255,.12);
      background: rgba(255,255,255,.05);
      color: #D9E4FF;
      cursor: default;
      transition: var(--ease);
    }

    .scenario-tab:hover,
    .scenario-tab.active {
      border-color: rgba(34,211,238,.36);
      background: rgba(34,211,238,.09);
      transform: translateX(4px);
    }

    .scenario-tab strong {
      display: block;
      font-size: 17px;
      margin-bottom: 4px;
      color: #fff;
    }

    .scenario-detail {
      position: relative;
      min-height: 100%;
      padding: 34px;
      overflow: hidden;
    }

    .scenario-detail::before {
      content: "";
      position: absolute;
      inset: auto -20% -30% 20%;
      height: 260px;
      background: radial-gradient(circle, rgba(47,107,255,.2), transparent 68%);
      pointer-events: none;
    }

    .value-list {
      display: grid;
      gap: 15px;
      margin: 26px 0 0;
      padding: 0;
      list-style: none;
    }

    .value-list li {
      position: relative;
      padding-left: 30px;
      color: #C2CDEA;
    }

    .value-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 9px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 18px rgba(34,211,238,.58);
    }

    .process {
      position: relative;
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 16px;
    }

    .process::before {
      content: "";
      position: absolute;
      top: 46px;
      left: 8%;
      right: 8%;
      height: 2px;
      background: linear-gradient(90deg, rgba(34,211,238,.1), rgba(34,211,238,.62), rgba(124,92,255,.42), rgba(34,211,238,.1));
      box-shadow: 0 0 20px rgba(34,211,238,.22);
    }

    .step-card {
      position: relative;
      z-index: 1;
      padding: 24px 18px;
      border-radius: 22px;
      border: 1px solid rgba(255,255,255,.13);
      background: rgba(255,255,255,.056);
      min-height: 220px;
      transition: var(--ease);
    }

    .step-card:hover {
      transform: translateY(-5px);
      border-color: rgba(34,211,238,.33);
      background: rgba(255,255,255,.08);
    }

    .step-index {
      width: 48px;
      height: 48px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      margin-bottom: 20px;
      color: #fff;
      font-weight: 850;
      background: linear-gradient(135deg, var(--primary), var(--violet));
      border: 1px solid rgba(255,255,255,.18);
      box-shadow: 0 0 26px rgba(47,107,255,.28);
    }

    .news-card {
      height: 100%;
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 15px;
      min-height: 250px;
    }

    .news-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      color: var(--weak);
      font-size: 13px;
    }

    .category-badge {
      display: inline-flex;
      align-items: center;
      padding: 6px 10px;
      border-radius: 999px;
      color: #C9FBFF;
      border: 1px solid rgba(34,211,238,.2);
      background: rgba(34,211,238,.07);
      font-size: 12px;
      font-weight: 750;
    }

    .news-card h3 {
      margin: 0;
      font-size: 21px;
      letter-spacing: -.02em;
    }

    .news-summary {
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      color: #AEBADB;
    }

    .news-card .btn-text {
      margin-top: auto;
      align-self: flex-start;
    }

    .empty-state {
      padding: 34px;
      text-align: center;
    }

    .empty-icon {
      width: 58px;
      height: 58px;
      margin: 0 auto 16px;
      border-radius: 20px;
      background: linear-gradient(135deg, rgba(47,107,255,.35), rgba(34,211,238,.22));
      border: 1px solid rgba(34,211,238,.22);
      box-shadow: var(--glow);
    }

    .accordion {
      display: grid;
      gap: 14px;
    }

    .accordion-item {
      border: 1px solid rgba(255,255,255,.13) !important;
      border-radius: 18px !important;
      overflow: hidden;
      background: rgba(255,255,255,.055) !important;
      backdrop-filter: blur(14px);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.07);
    }

    .accordion-button {
      padding: 20px 22px;
      color: #EEF4FF !important;
      font-weight: 760;
      font-size: 17px;
      background: transparent !important;
      box-shadow: none !important;
    }

    .accordion-button::after {
      filter: invert(1);
      opacity: .74;
      transition: var(--ease);
    }

    .accordion-button:not(.collapsed) {
      color: #FFFFFF !important;
      background: rgba(34,211,238,.075) !important;
      border-bottom: 1px solid rgba(255,255,255,.1);
    }

    .accordion-item:has(.accordion-button:not(.collapsed)) {
      border-color: rgba(34,211,238,.34) !important;
      box-shadow: 0 0 34px rgba(34,211,238,.12);
    }

    .accordion-body {
      color: #B8C4E3;
      padding: 18px 22px 24px;
      line-height: 1.9;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      padding: 42px;
      border-radius: 34px;
      border: 1px solid rgba(255,255,255,.15);
      background:
        radial-gradient(circle at 18% 18%, rgba(34,211,238,.18), transparent 32%),
        radial-gradient(circle at 86% 28%, rgba(124,92,255,.16), transparent 34%),
        linear-gradient(135deg, rgba(255,255,255,.09), rgba(255,255,255,.046));
      backdrop-filter: blur(18px);
      box-shadow: var(--shadow);
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      width: 360px;
      height: 360px;
      right: -150px;
      bottom: -160px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(47,107,255,.24), transparent 68%);
      pointer-events: none;
    }

    .contact-form {
      position: relative;
      z-index: 1;
      padding: 24px;
      border-radius: 26px;
      border: 1px solid rgba(255,255,255,.13);
      background: rgba(7,10,20,.48);
    }

    .form-label {
      color: #DCE6FF;
      font-weight: 700;
      font-size: 14px;
      margin-bottom: 8px;
    }

    .form-control {
      border: 1px solid rgba(255,255,255,.14);
      border-radius: 16px;
      background: rgba(255,255,255,.055);
      color: #fff;
      padding: 13px 15px;
      transition: var(--ease);
    }

    .form-control::placeholder {
      color: rgba(170,182,211,.62);
    }

    .form-control:focus {
      color: #fff;
      border-color: rgba(34,211,238,.48);
      background: rgba(255,255,255,.075);
    }

    .site-footer {
      position: relative;
      padding: 70px 0 26px;
      border-top: 1px solid rgba(255,255,255,.1);
      background:
        radial-gradient(circle at 30% 0%, rgba(34,211,238,.09), transparent 28%),
        rgba(4, 7, 15, .82);
    }

    .footer-title {
      color: #fff;
      font-weight: 800;
      margin-bottom: 18px;
    }

    .footer-links {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .footer-links a {
      color: #AAB6D3;
      font-weight: 600;
    }

    .footer-links a:hover {
      color: var(--cyan);
      transform: translateX(3px);
    }

    .footer-bottom {
      margin-top: 42px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,.09);
      color: var(--weak);
      font-size: 14px;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
    }

    .divider-glow {
      height: 1px;
      width: 100%;
      background: linear-gradient(90deg, transparent, rgba(34,211,238,.48), transparent);
      opacity: .72;
    }

    @media (max-width: 1199.98px) {
      :root {
        --section: 92px;
      }

      .hero-visual {
        min-height: 520px;
      }

      .dashboard-shell {
        height: 520px;
      }

      .module-main { left: 28px; width: 230px; }
      .module-flow { right: 26px; width: 178px; }
      .module-rank { left: 44px; }
      .module-status { right: 28px; width: 212px; }
      .capability-grid {
        grid-template-columns: 1fr 1fr;
      }

      .capability-card.featured {
        grid-column: 1 / -1;
        min-height: auto;
      }

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

      .process::before {
        display: none;
      }
    }

    @media (max-width: 991.98px) {
      .navbar-collapse {
        margin-top: 14px;
        padding: 16px;
        border-radius: 24px;
        border: 1px solid rgba(255,255,255,.13);
        background: rgba(7, 10, 20, .92);
        box-shadow: var(--shadow-soft);
      }

      .nav-pills-custom {
        align-items: stretch;
      }

      .nav-link {
        padding: 12px 14px !important;
      }

      .nav-cta {
        width: 100%;
        margin-top: 10px;
      }

      .nav-cta .btn-brand {
        width: 100%;
      }

      .hero {
        min-height: auto;
        padding-top: 70px;
      }

      .hero-visual {
        margin-top: 46px;
      }

      .scenario-layout {
        grid-template-columns: 1fr;
      }

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

      .data-band::before {
        display: none;
      }
    }

    @media (max-width: 767.98px) {
      :root {
        --section: 72px;
      }

      .site-navbar {
        min-height: 68px;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        flex-basis: 38px;
      }

      .brand-name {
        font-size: 15px;
        max-width: 210px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .brand-sub {
        display: none;
      }

      .hero {
        padding: 54px 0 44px;
      }

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

      .trust-strip {
        gap: 9px;
      }

      .hero-visual {
        min-height: 430px;
      }

      .dashboard-shell {
        height: 430px;
        border-radius: 26px;
        padding: 14px;
      }

      .module-card {
        padding: 14px;
        border-radius: 18px;
      }

      .module-card .value {
        font-size: 24px;
      }

      .module-main {
        left: 18px;
        top: 34px;
        width: 190px;
        height: 150px;
      }

      .module-flow {
        right: 16px;
        top: 70px;
        width: 145px;
        height: 128px;
      }

      .module-rank {
        left: 22px;
        bottom: 36px;
        width: 168px;
        height: 138px;
      }

      .module-status {
        right: 18px;
        bottom: 48px;
        width: 170px;
        height: 148px;
      }

      .orbit-badge {
        width: 96px;
        height: 96px;
        font-size: 13px;
      }

      .node-chain {
        top: 214px;
      }

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

      .data-band,
      .cta-panel {
        padding: 24px;
        border-radius: 26px;
      }

      .metric-card {
        padding: 20px;
      }

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

      .step-card {
        min-height: auto;
      }

      .scenario-detail {
        padding: 24px;
      }

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

    @media (max-width: 575.98px) {
      .container,
      .container-xl {
        padding-left: 18px;
        padding-right: 18px;
      }

      h1 {
        font-size: 36px;
      }

      h2 {
        font-size: 29px;
      }

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

      .hero-visual {
        min-height: 380px;
      }

      .dashboard-shell {
        height: 380px;
      }

      .module-main {
        width: 170px;
      }

      .module-flow {
        display: none;
      }

      .module-rank {
        width: 152px;
      }

      .module-status {
        width: 158px;
      }

      .trust-item {
        width: 100%;
      }

      .contact-form {
        padding: 18px;
      }
    }

/* roulang page: article */
:root {
      --bg: #070a14;
      --bg-2: #09111f;
      --bg-3: #0b1020;
      --surface: rgba(255, 255, 255, .075);
      --surface-2: rgba(255, 255, 255, .105);
      --surface-3: rgba(12, 24, 48, .72);
      --line: rgba(255, 255, 255, .13);
      --line-strong: rgba(34, 211, 238, .42);
      --text: #eaf0ff;
      --muted: #aab6d3;
      --weak: #74809e;
      --primary: #2f6bff;
      --primary-2: #3b82f6;
      --cyan: #22d3ee;
      --mint: #35f2c4;
      --violet: #7c5cff;
      --danger: #ff6b9a;
      --radius-lg: 28px;
      --radius: 22px;
      --radius-sm: 16px;
      --shadow: 0 24px 70px rgba(0, 0, 0, .34);
      --shadow-glow: 0 0 0 1px rgba(34, 211, 238, .12), 0 18px 54px rgba(47, 107, 255, .18);
      --container: 1200px;
      --ease: cubic-bezier(.2, .8, .2, 1);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      overflow-x: hidden;
    }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 14% 10%, rgba(47, 107, 255, .22), transparent 34%),
        radial-gradient(circle at 86% 14%, rgba(34, 211, 238, .16), transparent 30%),
        radial-gradient(circle at 52% 86%, rgba(124, 92, 255, .16), transparent 34%),
        linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 46%, #070b17 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      z-index: -2;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
      background-size: 54px 54px;
      mask-image: radial-gradient(circle at 50% 20%, #000 0%, transparent 72%);
    }

    body::after {
      content: "";
      position: fixed;
      inset: 0;
      z-index: -1;
      pointer-events: none;
      background:
        linear-gradient(115deg, transparent 0%, rgba(34, 211, 238, .05) 38%, transparent 58%),
        repeating-linear-gradient(90deg, transparent 0 34px, rgba(34, 211, 238, .035) 35px, transparent 36px);
      opacity: .72;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .24s var(--ease), border-color .24s var(--ease), background .24s var(--ease), transform .24s var(--ease);
    }

    a:hover {
      color: var(--cyan);
    }

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

    button,
    input,
    textarea {
      font: inherit;
    }

    ::selection {
      background: rgba(34, 211, 238, .28);
      color: #fff;
    }

    .container-xl {
      max-width: var(--container);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      padding: 14px 0;
      background: linear-gradient(180deg, rgba(7, 10, 20, .9), rgba(7, 10, 20, .58));
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(255, 255, 255, .08);
      box-shadow: 0 12px 36px rgba(0, 0, 0, .18);
    }

    .site-navbar {
      padding: 0;
    }

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

    .brand-mark {
      position: relative;
      width: 44px;
      height: 44px;
      flex: 0 0 44px;
      border-radius: 15px;
      background:
        radial-gradient(circle at 30% 30%, rgba(53, 242, 196, .95), transparent 26%),
        radial-gradient(circle at 72% 68%, rgba(47, 107, 255, .95), transparent 28%),
        linear-gradient(135deg, rgba(34, 211, 238, .22), rgba(124, 92, 255, .24));
      border: 1px solid rgba(255, 255, 255, .18);
      box-shadow: 0 0 28px rgba(34, 211, 238, .18), inset 0 1px 0 rgba(255, 255, 255, .24);
      overflow: hidden;
    }

    .brand-mark::before,
    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 11px;
      border: 1px solid rgba(255, 255, 255, .45);
      border-radius: 999px;
    }

    .brand-mark::after {
      inset: 20px 8px;
      border-radius: 999px;
      border-color: rgba(53, 242, 196, .7);
      transform: rotate(-24deg);
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.05;
      min-width: 0;
    }

    .brand-name {
      color: var(--text);
      font-size: 18px;
      font-weight: 800;
      letter-spacing: .2px;
      white-space: nowrap;
    }

    .brand-sub {
      margin-top: 5px;
      color: var(--muted);
      font-size: 12px;
      letter-spacing: 1.8px;
    }

    .navbar-toggler {
      width: 46px;
      height: 42px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, .075);
      box-shadow: none;
      padding: 0;
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 4px rgba(34, 211, 238, .18);
    }

    .navbar-toggler-icon {
      width: 22px;
      height: 16px;
      position: relative;
      background-image: none;
    }

    .navbar-toggler-icon::before,
    .navbar-toggler-icon::after,
    .navbar-toggler-icon span {
      content: "";
      position: absolute;
      left: 0;
      width: 22px;
      height: 2px;
      border-radius: 999px;
      background: var(--text);
    }

    .navbar-toggler-icon::before {
      top: 0;
    }

    .navbar-toggler-icon span {
      top: 7px;
      background: var(--cyan);
    }

    .navbar-toggler-icon::after {
      bottom: 0;
    }

    .nav-pills-custom {
      align-items: center;
      gap: 6px;
    }

    .nav-pills-custom .nav-link {
      position: relative;
      padding: 10px 14px;
      border-radius: 999px;
      color: var(--muted);
      font-weight: 600;
      font-size: 14px;
      letter-spacing: .2px;
    }

    .nav-pills-custom .nav-link:hover,
    .nav-pills-custom .nav-link:focus {
      color: var(--text);
      background: rgba(255, 255, 255, .07);
    }

    .nav-pills-custom .nav-link.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(47, 107, 255, .3), rgba(34, 211, 238, .13));
      box-shadow: inset 0 0 0 1px rgba(34, 211, 238, .23);
    }

    .btn-brand,
    .btn-ghost,
    .btn-soft {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 999px;
      min-height: 46px;
      padding: 12px 20px;
      font-weight: 700;
      letter-spacing: .2px;
      border: 1px solid transparent;
      transition: transform .24s var(--ease), box-shadow .24s var(--ease), background .24s var(--ease), border-color .24s var(--ease), color .24s var(--ease);
      white-space: nowrap;
    }

    .btn-brand {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--cyan));
      box-shadow: 0 14px 34px rgba(47, 107, 255, .26), 0 0 0 1px rgba(255, 255, 255, .12) inset;
    }

    .btn-brand:hover,
    .btn-brand:focus {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 18px 46px rgba(34, 211, 238, .26), 0 0 0 1px rgba(255, 255, 255, .2) inset;
    }

    .btn-ghost {
      color: var(--text);
      border-color: rgba(255, 255, 255, .15);
      background: rgba(255, 255, 255, .06);
    }

    .btn-ghost:hover,
    .btn-ghost:focus {
      color: #fff;
      border-color: rgba(34, 211, 238, .48);
      background: rgba(34, 211, 238, .09);
      transform: translateY(-2px);
    }

    .btn-soft {
      color: var(--cyan);
      border-color: rgba(34, 211, 238, .2);
      background: rgba(34, 211, 238, .075);
    }

    .btn-soft:hover,
    .btn-soft:focus {
      color: #fff;
      border-color: rgba(34, 211, 238, .5);
      background: rgba(47, 107, 255, .18);
      transform: translateY(-2px);
    }

    .btn-brand:focus-visible,
    .btn-ghost:focus-visible,
    .btn-soft:focus-visible,
    a:focus-visible,
    .form-control:focus {
      outline: none;
      box-shadow: 0 0 0 4px rgba(34, 211, 238, .18);
    }

    .article-hero {
      position: relative;
      padding: 88px 0 56px;
      overflow: hidden;
    }

    .article-hero::before {
      content: "";
      position: absolute;
      width: 520px;
      height: 520px;
      right: -170px;
      top: -160px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(34, 211, 238, .18), transparent 62%);
      pointer-events: none;
    }

    .article-hero::after {
      content: "";
      position: absolute;
      left: 8%;
      bottom: 22px;
      width: 72%;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(34, 211, 238, .44), rgba(124, 92, 255, .2), transparent);
      pointer-events: none;
    }

    .breadcrumb-wrap {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 9px;
      color: var(--weak);
      font-size: 14px;
      margin-bottom: 22px;
    }

    .breadcrumb-wrap a {
      color: var(--muted);
      border-bottom: 1px solid transparent;
    }

    .breadcrumb-wrap a:hover {
      color: var(--cyan);
      border-color: rgba(34, 211, 238, .55);
    }

    .breadcrumb-sep {
      color: rgba(255, 255, 255, .26);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      color: var(--cyan);
      font-size: 13px;
      font-weight: 700;
      background: rgba(34, 211, 238, .08);
      border: 1px solid rgba(34, 211, 238, .2);
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08);
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--mint);
      box-shadow: 0 0 16px rgba(53, 242, 196, .8);
    }

    .article-title {
      margin: 20px 0 18px;
      max-width: 920px;
      font-size: clamp(32px, 5vw, 52px);
      line-height: 1.16;
      font-weight: 800;
      letter-spacing: -.8px;
    }

    .article-desc {
      max-width: 790px;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.9;
      margin: 0;
    }

    .article-meta {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
      margin-top: 26px;
    }

    .meta-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 34px;
      padding: 7px 12px;
      border-radius: 999px;
      color: var(--muted);
      background: rgba(255, 255, 255, .055);
      border: 1px solid rgba(255, 255, 255, .1);
      font-size: 13px;
      font-weight: 600;
    }

    .meta-pill strong {
      color: var(--text);
      font-weight: 700;
    }

    .section {
      position: relative;
      padding: 70px 0;
    }

    .reading-layout {
      align-items: flex-start;
    }

    .glass-card {
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, rgba(255, 255, 255, .088), rgba(255, 255, 255, .052));
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      backdrop-filter: blur(18px);
    }

    .article-shell {
      padding: clamp(24px, 4vw, 46px);
      overflow: hidden;
    }

    .article-content {
      color: rgba(234, 240, 255, .93);
      font-size: 17px;
      line-height: 1.92;
      word-break: break-word;
    }

    .article-content > *:first-child {
      margin-top: 0;
    }

    .article-content p {
      margin: 0 0 1.22em;
    }

    .article-content h2,
    .article-content h3,
    .article-content h4 {
      color: #fff;
      font-weight: 800;
      line-height: 1.32;
      letter-spacing: -.2px;
    }

    .article-content h2 {
      position: relative;
      margin: 2.1em 0 .8em;
      padding-left: 18px;
      font-size: clamp(25px, 3vw, 32px);
    }

    .article-content h2::before {
      content: "";
      position: absolute;
      left: 0;
      top: .18em;
      width: 5px;
      height: 1.05em;
      border-radius: 999px;
      background: linear-gradient(180deg, var(--cyan), var(--primary));
      box-shadow: 0 0 18px rgba(34, 211, 238, .42);
    }

    .article-content h3 {
      margin: 1.8em 0 .72em;
      font-size: clamp(21px, 2.4vw, 25px);
    }

    .article-content h4 {
      margin: 1.5em 0 .62em;
      font-size: 19px;
    }

    .article-content a {
      color: var(--cyan);
      background-image: linear-gradient(90deg, rgba(34, 211, 238, .7), rgba(34, 211, 238, .7));
      background-repeat: no-repeat;
      background-position: 0 100%;
      background-size: 0 1px;
    }

    .article-content a:hover {
      color: #fff;
      background-size: 100% 1px;
    }

    .article-content ul,
    .article-content ol {
      margin: 0 0 1.35em;
      padding-left: 1.4em;
    }

    .article-content li {
      margin: .45em 0;
      padding-left: .18em;
    }

    .article-content li::marker {
      color: var(--cyan);
      font-weight: 800;
    }

    .article-content blockquote {
      margin: 1.7em 0;
      padding: 22px 24px;
      color: rgba(234, 240, 255, .92);
      background: rgba(34, 211, 238, .075);
      border: 1px solid rgba(34, 211, 238, .18);
      border-left: 4px solid var(--cyan);
      border-radius: 18px;
      box-shadow: 0 18px 46px rgba(0, 0, 0, .18);
    }

    .article-content img {
      width: auto;
      max-width: 100%;
      margin: 1.7em auto;
      border-radius: 18px;
      border: 1px solid rgba(255, 255, 255, .12);
      box-shadow: 0 18px 50px rgba(0, 0, 0, .28);
    }

    .article-content table {
      width: 100%;
      margin: 1.6em 0;
      border-collapse: collapse;
      min-width: 640px;
      color: var(--text);
      background: rgba(255, 255, 255, .045);
      border-radius: 16px;
      overflow: hidden;
    }

    .article-content th,
    .article-content td {
      padding: 14px 16px;
      border: 1px solid rgba(255, 255, 255, .1);
      vertical-align: top;
    }

    .article-content th {
      color: #fff;
      background: rgba(47, 107, 255, .18);
      font-weight: 800;
    }

    .article-content pre {
      margin: 1.7em 0;
      padding: 18px;
      overflow-x: auto;
      color: #dfe9ff;
      background: rgba(2, 8, 23, .82);
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: 18px;
      line-height: 1.7;
      box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06);
    }

    .article-content code {
      padding: .16em .42em;
      border-radius: 8px;
      color: #bdf8ff;
      background: rgba(34, 211, 238, .1);
      font-family: Consolas, Monaco, "Courier New", monospace;
      font-size: .92em;
    }

    .article-content pre code {
      padding: 0;
      background: transparent;
      color: inherit;
    }

    .table-responsive-custom {
      max-width: 100%;
      overflow-x: auto;
    }

    .not-found-box {
      text-align: center;
      padding: clamp(34px, 6vw, 68px) 22px;
      border-radius: var(--radius-lg);
      background:
        radial-gradient(circle at 50% 0%, rgba(34, 211, 238, .15), transparent 38%),
        rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .12);
    }

    .not-found-icon {
      width: 66px;
      height: 66px;
      margin: 0 auto 18px;
      border-radius: 22px;
      background: linear-gradient(135deg, rgba(47, 107, 255, .5), rgba(34, 211, 238, .24));
      border: 1px solid rgba(255, 255, 255, .15);
      box-shadow: 0 18px 42px rgba(47, 107, 255, .2);
      position: relative;
    }

    .not-found-icon::before,
    .not-found-icon::after {
      content: "";
      position: absolute;
      background: rgba(255, 255, 255, .78);
      border-radius: 999px;
    }

    .not-found-icon::before {
      width: 30px;
      height: 3px;
      left: 18px;
      top: 31px;
    }

    .not-found-icon::after {
      width: 3px;
      height: 30px;
      left: 31px;
      top: 18px;
      transform: rotate(90deg);
    }

    .not-found-box h2 {
      margin: 0 0 10px;
      font-size: 28px;
      font-weight: 800;
    }

    .not-found-box p {
      color: var(--muted);
      margin: 0 auto 24px;
      max-width: 560px;
    }

    .side-stack {
      position: sticky;
      top: 104px;
      display: grid;
      gap: 18px;
    }

    .side-card {
      padding: 22px;
      border-radius: var(--radius);
      background: linear-gradient(180deg, rgba(255, 255, 255, .085), rgba(255, 255, 255, .048));
      border: 1px solid rgba(255, 255, 255, .12);
      box-shadow: 0 18px 46px rgba(0, 0, 0, .22);
      backdrop-filter: blur(16px);
    }

    .side-card h3 {
      margin: 0 0 12px;
      color: #fff;
      font-size: 18px;
      font-weight: 800;
    }

    .side-card p {
      margin: 0 0 16px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .info-list {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .info-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
    }

    .info-list li::before {
      content: "";
      width: 8px;
      height: 8px;
      margin-top: 8px;
      flex: 0 0 8px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 14px rgba(34, 211, 238, .72);
    }

    .module-chain {
      position: relative;
      height: 74px;
      margin-top: 18px;
      border-radius: 18px;
      overflow: hidden;
      background:
        linear-gradient(90deg, rgba(47, 107, 255, .12), rgba(34, 211, 238, .08), rgba(124, 92, 255, .1)),
        rgba(255, 255, 255, .035);
      border: 1px solid rgba(255, 255, 255, .1);
    }

    .module-chain span {
      position: absolute;
      top: 32px;
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--mint);
      box-shadow: 0 0 18px rgba(53, 242, 196, .8);
    }

    .module-chain span:nth-child(1) { left: 12%; }
    .module-chain span:nth-child(2) { left: 32%; background: var(--cyan); }
    .module-chain span:nth-child(3) { left: 52%; background: var(--primary-2); }
    .module-chain span:nth-child(4) { left: 72%; background: var(--violet); }

    .module-chain::before {
      content: "";
      position: absolute;
      left: 13%;
      right: 26%;
      top: 36px;
      height: 1px;
      background: linear-gradient(90deg, rgba(53, 242, 196, .75), rgba(34, 211, 238, .55), rgba(124, 92, 255, .55));
    }

    .related-section {
      padding-top: 18px;
      padding-bottom: 92px;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 26px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--cyan);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 1px;
      margin-bottom: 9px;
    }

    .section-kicker::before {
      content: "";
      width: 22px;
      height: 2px;
      border-radius: 999px;
      background: var(--cyan);
      box-shadow: 0 0 14px rgba(34, 211, 238, .7);
    }

    .section-title {
      margin: 0;
      color: #fff;
      font-size: clamp(28px, 4vw, 38px);
      font-weight: 800;
      line-height: 1.22;
      letter-spacing: -.4px;
    }

    .section-desc {
      margin: 10px 0 0;
      max-width: 650px;
      color: var(--muted);
    }

    .action-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 22px;
    }

    .action-card {
      position: relative;
      overflow: hidden;
      padding: 28px;
      min-height: 210px;
      border-radius: var(--radius-lg);
      background:
        radial-gradient(circle at 88% 18%, rgba(34, 211, 238, .18), transparent 34%),
        linear-gradient(135deg, rgba(47, 107, 255, .17), rgba(255, 255, 255, .055));
      border: 1px solid rgba(255, 255, 255, .13);
      box-shadow: var(--shadow-glow);
      transition: transform .24s var(--ease), border-color .24s var(--ease), background .24s var(--ease);
    }

    .action-card:hover {
      transform: translateY(-5px);
      border-color: rgba(34, 211, 238, .36);
    }

    .action-card h3 {
      margin: 0 0 12px;
      font-size: 24px;
      font-weight: 800;
      color: #fff;
    }

    .action-card p {
      margin: 0 0 22px;
      color: var(--muted);
      max-width: 620px;
    }

    .mini-card {
      padding: 24px;
      border-radius: var(--radius);
      background: rgba(255, 255, 255, .06);
      border: 1px solid rgba(255, 255, 255, .11);
      transition: transform .24s var(--ease), border-color .24s var(--ease), background .24s var(--ease);
    }

    .mini-card:hover {
      transform: translateY(-4px);
      border-color: rgba(34, 211, 238, .3);
      background: rgba(255, 255, 255, .08);
    }

    .mini-card .tag {
      display: inline-flex;
      padding: 6px 10px;
      border-radius: 999px;
      color: var(--cyan);
      background: rgba(34, 211, 238, .08);
      border: 1px solid rgba(34, 211, 238, .16);
      font-size: 12px;
      font-weight: 800;
      margin-bottom: 14px;
    }

    .mini-card h3 {
      margin: 0 0 10px;
      color: #fff;
      font-size: 20px;
      font-weight: 800;
    }

    .mini-card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      padding: clamp(28px, 5vw, 48px);
      border-radius: 32px;
      background:
        radial-gradient(circle at 82% 18%, rgba(53, 242, 196, .18), transparent 30%),
        radial-gradient(circle at 10% 90%, rgba(124, 92, 255, .18), transparent 34%),
        linear-gradient(135deg, rgba(47, 107, 255, .18), rgba(255, 255, 255, .065));
      border: 1px solid rgba(255, 255, 255, .14);
      box-shadow: var(--shadow);
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      inset: 16px;
      border-radius: 24px;
      border: 1px solid rgba(255, 255, 255, .08);
      pointer-events: none;
    }

    .cta-title {
      margin: 0 0 12px;
      color: #fff;
      font-size: clamp(28px, 4vw, 42px);
      font-weight: 800;
      line-height: 1.22;
    }

    .cta-text {
      margin: 0;
      color: var(--muted);
      max-width: 700px;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 24px;
    }

    .site-footer {
      position: relative;
      padding: 68px 0 28px;
      background:
        linear-gradient(180deg, rgba(7, 10, 20, .18), rgba(3, 6, 15, .94)),
        #050812;
      border-top: 1px solid rgba(255, 255, 255, .09);
      overflow: hidden;
    }

    .site-footer::before {
      content: "";
      position: absolute;
      left: 8%;
      right: 8%;
      top: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(34, 211, 238, .55), rgba(124, 92, 255, .32), transparent);
    }

    .site-footer p {
      color: var(--muted);
      max-width: 520px;
      margin-bottom: 0;
    }

    .footer-title {
      margin: 0 0 18px;
      color: #fff;
      font-size: 16px;
      font-weight: 800;
    }

    .footer-links {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: var(--muted);
      font-weight: 500;
      display: inline-flex;
    }

    .footer-links a:hover {
      color: var(--cyan);
      transform: translateX(3px);
    }

    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: 48px;
      padding-top: 22px;
      border-top: 1px solid rgba(255, 255, 255, .09);
      color: var(--weak);
      font-size: 13px;
    }

    @media (max-width: 991.98px) {
      .site-header {
        padding: 10px 0;
      }

      .navbar-collapse {
        margin-top: 14px;
        padding: 14px;
        border-radius: 22px;
        background: rgba(8, 14, 29, .94);
        border: 1px solid rgba(255, 255, 255, .11);
        box-shadow: var(--shadow);
      }

      .nav-pills-custom {
        align-items: stretch;
        gap: 8px;
      }

      .nav-pills-custom .nav-link {
        padding: 12px 14px;
      }

      .nav-cta {
        margin-top: 12px;
      }

      .nav-cta .btn-brand {
        width: 100%;
      }

      .article-hero {
        padding: 62px 0 42px;
      }

      .side-stack {
        position: static;
        margin-top: 22px;
      }

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

    @media (max-width: 767.98px) {
      .brand-name {
        font-size: 16px;
      }

      .brand-sub {
        font-size: 11px;
      }

      .brand-mark {
        width: 40px;
        height: 40px;
        flex-basis: 40px;
      }

      .section {
        padding: 52px 0;
      }

      .article-title {
        letter-spacing: -.4px;
      }

      .article-desc {
        font-size: 16px;
      }

      .article-shell {
        border-radius: 22px;
      }

      .article-content {
        font-size: 16px;
        line-height: 1.86;
      }

      .section-head {
        display: block;
      }

      .cta-actions,
      .article-meta {
        align-items: stretch;
      }

      .cta-actions .btn-brand,
      .cta-actions .btn-ghost,
      .btn-soft {
        width: 100%;
      }

      .footer-bottom {
        display: grid;
      }
    }

    @media (max-width: 575.98px) {
      body::after {
        opacity: .36;
      }

      .site-header {
        padding: 8px 0;
      }

      .article-hero {
        padding: 46px 0 34px;
      }

      .breadcrumb-wrap {
        font-size: 13px;
      }

      .meta-pill {
        width: 100%;
        justify-content: space-between;
      }

      .glass-card,
      .action-card,
      .cta-panel {
        border-radius: 22px;
      }

      .side-card,
      .mini-card {
        border-radius: 18px;
      }

      .article-content blockquote {
        padding: 18px;
      }

      .site-footer {
        padding-top: 52px;
      }
    }