/* roulang page: index */
:root {
      --bg: #07111f;
      --bg-2: #0b1830;
      --bg-3: #0f2342;
      --surface: rgba(255, 255, 255, 0.08);
      --surface-strong: rgba(255, 255, 255, 0.13);
      --surface-soft: rgba(255, 255, 255, 0.055);
      --text: #f4f8ff;
      --text-muted: #aab9d4;
      --text-soft: #7f8eab;
      --primary: #52d3ff;
      --primary-2: #7c5cff;
      --accent: #20f3b5;
      --warning: #ffd166;
      --danger: #ff6b8a;
      --line: rgba(190, 214, 255, 0.18);
      --line-strong: rgba(190, 214, 255, 0.3);
      --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
      --shadow-soft: 0 16px 42px rgba(0, 0, 0, 0.22);
      --glow: 0 0 30px rgba(82, 211, 255, 0.28), 0 0 70px rgba(124, 92, 255, 0.18);
      --radius-xl: 32px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --container: 1180px;
      --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      --ease: 180ms ease;
    }

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

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

    body {
      min-height: 100vh;
      font-family: var(--font);
      color: var(--text);
      line-height: 1.72;
      background:
        radial-gradient(circle at 12% 8%, rgba(82, 211, 255, 0.18), transparent 32%),
        radial-gradient(circle at 86% 12%, rgba(124, 92, 255, 0.24), transparent 34%),
        radial-gradient(circle at 52% 88%, rgba(32, 243, 181, 0.11), transparent 30%),
        linear-gradient(180deg, #06101e 0%, #0a1426 48%, #08111f 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
      background-size: 46px 46px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,.75), transparent 80%);
      z-index: -2;
    }

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

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

    button, input, textarea, select {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    input, textarea {
      width: 100%;
      border: 1px solid var(--line);
      outline: none;
      color: var(--text);
      background: rgba(255, 255, 255, 0.06);
      border-radius: 16px;
      padding: 14px 16px;
      transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }

    input:focus, textarea:focus {
      border-color: rgba(82, 211, 255, 0.72);
      box-shadow: 0 0 0 4px rgba(82, 211, 255, 0.14);
      background: rgba(255, 255, 255, 0.1);
    }

    textarea {
      resize: vertical;
      min-height: 118px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid rgba(190, 214, 255, 0.13);
      background: rgba(6, 16, 30, 0.72);
      backdrop-filter: blur(18px);
    }

    .nav {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: var(--text);
      white-space: nowrap;
    }

    .logo-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      background:
        linear-gradient(135deg, rgba(82, 211, 255, .95), rgba(124, 92, 255, .95));
      box-shadow: var(--glow);
      color: #06101e;
      font-weight: 1000;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-left: auto;
    }

    .nav-link {
      padding: 10px 16px;
      border-radius: 999px;
      color: var(--text-muted);
      font-size: 15px;
      border: 1px solid transparent;
    }

    .nav-link:hover {
      color: var(--text);
      background: rgba(255, 255, 255, 0.08);
      border-color: var(--line);
    }

    .nav-link.active {
      color: var(--text);
      background: rgba(82, 211, 255, 0.12);
      border-color: rgba(82, 211, 255, 0.3);
    }

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

    .mobile-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background: var(--surface);
      color: var(--text);
      border: 1px solid var(--line);
    }

    .mobile-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      margin: 5px auto;
      background: currentColor;
      border-radius: 4px;
      transition: transform var(--ease), opacity var(--ease);
    }

    .mobile-toggle.is-open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .mobile-toggle.is-open span:nth-child(2) {
      opacity: 0;
    }

    .mobile-toggle.is-open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 800;
      letter-spacing: 0.01em;
      border: 1px solid transparent;
      user-select: none;
      white-space: nowrap;
    }

    .btn-primary {
      color: #03111e;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 0 24px rgba(82, 211, 255, 0.36), 0 14px 34px rgba(32, 243, 181, 0.16);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 0 34px rgba(82, 211, 255, 0.48), 0 18px 46px rgba(32, 243, 181, 0.22);
    }

    .btn-secondary {
      color: var(--text);
      background: rgba(255, 255, 255, 0.08);
      border-color: var(--line);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      background: rgba(255, 255, 255, 0.12);
      border-color: var(--line-strong);
      box-shadow: var(--shadow-soft);
    }

    .btn-ghost {
      color: var(--text-muted);
      background: transparent;
      border-color: var(--line);
    }

    .btn-ghost:hover {
      color: var(--text);
      border-color: rgba(82, 211, 255, 0.45);
      background: rgba(82, 211, 255, 0.08);
    }

    .btn:focus-visible,
    .nav-link:focus-visible,
    .logo:focus-visible,
    .mobile-toggle:focus-visible {
      outline: 3px solid rgba(82, 211, 255, 0.5);
      outline-offset: 3px;
    }

    main {
      overflow: hidden;
    }

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

    .section-tight {
      padding: 58px 0;
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 28px;
      margin-bottom: 30px;
    }

    .section-head h2 {
      font-size: clamp(28px, 4vw, 46px);
      line-height: 1.14;
      letter-spacing: -0.04em;
      max-width: 780px;
    }

    .section-head p {
      color: var(--text-muted);
      max-width: 540px;
      font-size: 16px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
      color: #bff5ff;
      font-weight: 900;
      font-size: 13px;
      letter-spacing: 0.12em;
      text-transform: uppercase;
    }

    .eyebrow::before {
      content: "";
      width: 9px;
      height: 9px;
      border-radius: 99px;
      background: var(--accent);
      box-shadow: 0 0 18px rgba(32, 243, 181, .86);
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 11px;
      border: 1px solid var(--line);
      border-radius: 999px;
      color: var(--text-muted);
      background: rgba(255, 255, 255, 0.06);
      font-size: 13px;
      font-weight: 800;
    }

    .badge.hot {
      color: #fff2c2;
      border-color: rgba(255, 209, 102, 0.32);
      background: rgba(255, 209, 102, 0.11);
    }

    .glass {
      background: linear-gradient(180deg, rgba(255,255,255,0.11), rgba(255,255,255,0.055));
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-soft);
      backdrop-filter: blur(18px);
    }

    .hero {
      padding: 78px 0 46px;
    }

    .hero-stage {
      position: relative;
      overflow: hidden;
      border-radius: 38px;
      border: 1px solid rgba(190, 214, 255, 0.2);
      background:
        radial-gradient(circle at 14% 18%, rgba(82, 211, 255, 0.18), transparent 35%),
        radial-gradient(circle at 90% 16%, rgba(124, 92, 255, 0.24), transparent 36%),
        linear-gradient(135deg, rgba(255,255,255,0.12), rgba(255,255,255,0.045));
      box-shadow: var(--shadow);
      padding: clamp(28px, 5vw, 58px);
    }

    .hero-stage::after {
      content: "";
      position: absolute;
      inset: auto -12% -35% 26%;
      height: 320px;
      background: radial-gradient(circle, rgba(82,211,255,.22), transparent 64%);
      pointer-events: none;
    }

    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.05fr 1fr;
      gap: clamp(24px, 5vw, 56px);
      align-items: center;
    }

    .hero h1 {
      font-size: clamp(38px, 7vw, 74px);
      line-height: 1.02;
      letter-spacing: -0.07em;
      margin-bottom: 22px;
    }

    .hero-intro {
      max-width: 690px;
      color: var(--text-muted);
      font-size: clamp(16px, 2vw, 19px);
      margin-bottom: 26px;
    }

    .hero-ctas {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 26px;
    }

    .hero-points {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      max-width: 720px;
    }

    .point {
      padding: 14px 15px;
      border: 1px solid var(--line);
      border-radius: 18px;
      background: rgba(3, 17, 30, 0.34);
    }

    .point strong {
      display: block;
      font-size: 22px;
      line-height: 1.1;
      color: var(--text);
      margin-bottom: 4px;
    }

    .point span {
      color: var(--text-soft);
      font-size: 13px;
      display: block;
      line-height: 1.45;
    }

    .demo-board {
      min-height: 430px;
      border-radius: 30px;
      padding: 18px;
      background:
        linear-gradient(180deg, rgba(8,20,38,0.88), rgba(7,17,31,0.66));
      border: 1px solid var(--line-strong);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.09), var(--glow);
      position: relative;
      overflow: hidden;
    }

    .demo-board::before {
      content: "";
      position: absolute;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      background: rgba(82, 211, 255, .2);
      filter: blur(30px);
      right: -70px;
      top: -70px;
    }

    .board-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 16px;
      position: relative;
      z-index: 1;
    }

    .dots {
      display: inline-flex;
      gap: 7px;
    }

    .dots i {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: rgba(255,255,255,.26);
    }

    .dots i:nth-child(1) { background: var(--danger); }
    .dots i:nth-child(2) { background: var(--warning); }
    .dots i:nth-child(3) { background: var(--accent); }

    .board-label {
      color: var(--text-soft);
      font-size: 13px;
      font-weight: 800;
    }

    .command-line {
      position: relative;
      z-index: 1;
      border: 1px solid rgba(82, 211, 255, .25);
      background: rgba(82, 211, 255, .08);
      border-radius: 18px;
      padding: 14px 15px;
      display: flex;
      align-items: center;
      gap: 10px;
      color: #dff8ff;
      margin-bottom: 14px;
    }

    .command-line .cursor {
      width: 9px;
      height: 22px;
      border-radius: 2px;
      background: var(--accent);
      box-shadow: 0 0 20px rgba(32, 243, 181, .75);
      animation: blink 1s steps(2, start) infinite;
    }

    @keyframes blink {
      50% { opacity: .18; }
    }

    .subtitle-rows {
      position: relative;
      z-index: 1;
      display: grid;
      gap: 10px;
    }

    .subtitle-row {
      padding: 13px 14px;
      border: 1px solid var(--line);
      border-radius: 16px;
      background: rgba(255,255,255,.06);
      display: grid;
      grid-template-columns: 94px 1fr auto;
      gap: 12px;
      align-items: center;
    }

    .subtitle-row time {
      color: var(--primary);
      font-size: 12px;
      font-weight: 900;
    }

    .subtitle-row p {
      color: #e7efff;
      font-size: 14px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .status {
      font-size: 12px;
      font-weight: 900;
      border-radius: 999px;
      padding: 5px 8px;
      color: #07111f;
      background: var(--accent);
    }

    .status.warn {
      background: var(--warning);
    }

    .quality-strip {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 14px;
    }

    .quality-item {
      padding: 15px;
      border-radius: 18px;
      border: 1px solid var(--line);
      background: rgba(255,255,255,.055);
    }

    .quality-item strong {
      display: block;
      font-size: 24px;
      color: var(--text);
    }

    .quality-item span {
      color: var(--text-soft);
      font-size: 13px;
    }

    .matrix-layout {
      display: grid;
      grid-template-columns: 0.8fr 1.2fr;
      gap: 22px;
      align-items: stretch;
    }

    .feature-panel {
      padding: 28px;
      min-height: 100%;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-panel h3 {
      font-size: 28px;
      line-height: 1.18;
      letter-spacing: -0.03em;
      margin-bottom: 12px;
    }

    .feature-panel p {
      color: var(--text-muted);
      margin-bottom: 20px;
    }

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

    .mini-list li {
      display: flex;
      gap: 10px;
      color: var(--text-muted);
      align-items: flex-start;
    }

    .mini-list li::before {
      content: "✓";
      flex: 0 0 22px;
      width: 22px;
      height: 22px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      color: #06101e;
      background: var(--accent);
      font-size: 13px;
      font-weight: 1000;
      margin-top: 3px;
    }

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

    .matrix-card {
      padding: 22px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      background: rgba(255,255,255,.07);
      transition: transform var(--ease), border-color var(--ease), background var(--ease), box-shadow var(--ease);
    }

    .matrix-card:hover {
      transform: translateY(-4px);
      border-color: rgba(82, 211, 255, .38);
      background: rgba(255,255,255,.1);
      box-shadow: var(--shadow-soft);
    }

    .icon {
      width: 48px;
      height: 48px;
      border-radius: 17px;
      display: grid;
      place-items: center;
      margin-bottom: 18px;
      color: #06101e;
      font-size: 22px;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow: 0 0 24px rgba(82,211,255,.18);
    }

    .matrix-card h3,
    .result-card h3,
    .news-card h3,
    .faq-item h3 {
      line-height: 1.28;
      letter-spacing: -0.02em;
    }

    .matrix-card h3 {
      font-size: 20px;
      margin-bottom: 8px;
    }

    .matrix-card p,
    .result-card p,
    .news-card p {
      color: var(--text-muted);
      font-size: 15px;
    }

    .experience-wrap {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 22px;
      align-items: stretch;
    }

    .workflow {
      padding: 24px;
      border-radius: var(--radius-xl);
      border: 1px solid var(--line);
      background:
        linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.045));
    }

    .step {
      display: grid;
      grid-template-columns: 56px 1fr;
      gap: 16px;
      position: relative;
      padding-bottom: 24px;
    }

    .step:not(:last-child)::after {
      content: "";
      position: absolute;
      left: 27px;
      top: 58px;
      bottom: 0;
      width: 1px;
      background: linear-gradient(to bottom, rgba(82,211,255,.55), transparent);
    }

    .step-no {
      width: 56px;
      height: 56px;
      border-radius: 19px;
      display: grid;
      place-items: center;
      font-weight: 1000;
      color: #06101e;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: 0 0 24px rgba(82,211,255,.24);
    }

    .step h3 {
      font-size: 20px;
      margin-bottom: 5px;
    }

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

    .sample-card {
      padding: 28px;
      overflow: hidden;
      position: relative;
    }

    .sample-card::after {
      content: "";
      position: absolute;
      width: 180px;
      height: 180px;
      right: -60px;
      bottom: -60px;
      border-radius: 50%;
      background: rgba(32, 243, 181, .16);
      filter: blur(16px);
    }

    .sample-card h3 {
      font-size: 26px;
      line-height: 1.2;
      margin-bottom: 12px;
      position: relative;
      z-index: 1;
    }

    .sample-card p {
      color: var(--text-muted);
      position: relative;
      z-index: 1;
      margin-bottom: 22px;
    }

    .sample-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      position: relative;
      z-index: 1;
      margin-bottom: 22px;
    }

    .result-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr .9fr;
      gap: 16px;
    }

    .result-card {
      padding: 24px;
      min-height: 220px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform var(--ease), box-shadow var(--ease);
    }

    .result-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow);
    }

    .result-card.featured {
      background:
        linear-gradient(135deg, rgba(82,211,255,.18), rgba(124,92,255,.13)),
        rgba(255,255,255,.07);
    }

    .metric {
      font-size: clamp(38px, 5vw, 56px);
      line-height: 1;
      letter-spacing: -0.06em;
      font-weight: 1000;
      color: #dffaff;
      margin-bottom: 12px;
    }

    .metric small {
      font-size: 18px;
      letter-spacing: 0;
      color: var(--accent);
    }

    .campaign {
      padding: 32px;
      border-radius: var(--radius-xl);
      border: 1px solid rgba(82,211,255,.25);
      background:
        radial-gradient(circle at 8% 20%, rgba(82,211,255,.2), transparent 32%),
        radial-gradient(circle at 92% 80%, rgba(32,243,181,.15), transparent 34%),
        linear-gradient(135deg, rgba(10, 34, 66, .9), rgba(11, 24, 48, .72));
      box-shadow: var(--shadow-soft);
    }

    .campaign-grid {
      display: grid;
      grid-template-columns: .95fr 1.05fr;
      gap: 24px;
      align-items: center;
    }

    .campaign h2 {
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.15;
      letter-spacing: -0.04em;
      margin-bottom: 14px;
    }

    .campaign p {
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .group-board {
      display: grid;
      gap: 14px;
    }

    .group-card {
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: 20px;
      background: rgba(255,255,255,.07);
    }

    .group-card-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
    }

    .group-card strong {
      font-size: 17px;
    }

    .progress {
      height: 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.1);
      overflow: hidden;
      border: 1px solid rgba(255,255,255,.08);
    }

    .progress span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      box-shadow: 0 0 20px rgba(82,211,255,.45);
    }

    .entry-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }

    .entry-card {
      min-height: 142px;
      padding: 20px;
      border-radius: 22px;
      border: 1px solid var(--line);
      background: rgba(255,255,255,.06);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform var(--ease), border-color var(--ease), background var(--ease);
    }

    .entry-card:hover {
      transform: translateY(-4px);
      border-color: rgba(32,243,181,.36);
      background: rgba(32,243,181,.075);
    }

    .entry-card b {
      font-size: 18px;
    }

    .entry-card span {
      color: var(--text-soft);
      font-size: 14px;
    }

    .news-layout {
      display: grid;
      grid-template-columns: 1.4fr .6fr;
      gap: 22px;
      align-items: start;
    }

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

    .news-item {
      display: grid;
      grid-template-columns: 116px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 16px;
      border-radius: 20px;
      border: 1px solid var(--line);
      background: rgba(255,255,255,.055);
      transition: transform var(--ease), border-color var(--ease), background var(--ease);
    }

    .news-item:hover {
      transform: translateX(4px);
      border-color: rgba(82,211,255,.34);
      background: rgba(255,255,255,.085);
    }

    .news-date {
      color: var(--primary);
      font-weight: 900;
      font-size: 13px;
    }

    .news-item h3 {
      font-size: 18px;
      margin-bottom: 2px;
    }

    .news-item p {
      color: var(--text-soft);
      font-size: 14px;
    }

    .arrow {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: rgba(82,211,255,.1);
      color: var(--primary);
      border: 1px solid rgba(82,211,255,.22);
    }

    .recommend {
      padding: 24px;
      position: sticky;
      top: 98px;
    }

    .recommend h3 {
      font-size: 22px;
      margin-bottom: 14px;
    }

    .recommend p {
      color: var(--text-muted);
      margin-bottom: 16px;
    }

    .recommend-links {
      display: grid;
      gap: 10px;
    }

    .recommend-links a {
      padding: 12px 13px;
      border-radius: 14px;
      color: var(--text-muted);
      background: rgba(255,255,255,.055);
      border: 1px solid transparent;
    }

    .recommend-links a:hover {
      color: var(--text);
      border-color: var(--line);
      background: rgba(255,255,255,.09);
    }

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

    .faq-item {
      padding: 22px;
      border-radius: 22px;
      border: 1px solid var(--line);
      background: rgba(255,255,255,.06);
    }

    .faq-item h3 {
      font-size: 19px;
      margin-bottom: 8px;
    }

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

    .cta {
      padding: 34px;
      border-radius: 34px;
      border: 1px solid rgba(82,211,255,.26);
      background:
        radial-gradient(circle at 16% 18%, rgba(82,211,255,.22), transparent 34%),
        radial-gradient(circle at 88% 78%, rgba(124,92,255,.2), transparent 38%),
        linear-gradient(135deg, rgba(255,255,255,.11), rgba(255,255,255,.05));
      box-shadow: var(--shadow);
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 28px;
      align-items: start;
    }

    .cta h2 {
      font-size: clamp(30px, 4vw, 48px);
      line-height: 1.13;
      letter-spacing: -0.05em;
      margin-bottom: 14px;
    }

    .cta p {
      color: var(--text-muted);
      margin-bottom: 20px;
    }

    .form-card {
      padding: 22px;
      border-radius: 24px;
      border: 1px solid var(--line);
      background: rgba(3, 17, 30, .38);
      display: grid;
      gap: 13px;
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 13px;
    }

    .form-note {
      min-height: 26px;
      color: var(--accent);
      font-size: 14px;
      font-weight: 800;
    }

    .site-footer {
      border-top: 1px solid rgba(190,214,255,.14);
      background: rgba(4, 11, 22, .72);
      padding: 46px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 28px;
      align-items: start;
      margin-bottom: 28px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 1000;
      font-size: 18px;
      margin-bottom: 14px;
    }

    .footer-about {
      color: var(--text-muted);
      max-width: 650px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: flex-end;
    }

    .footer-links a {
      color: var(--text-muted);
      border: 1px solid var(--line);
      background: rgba(255,255,255,.045);
      padding: 9px 13px;
      border-radius: 999px;
      font-size: 14px;
    }

    .footer-links a:hover {
      color: var(--text);
      border-color: rgba(82,211,255,.34);
      background: rgba(82,211,255,.08);
    }

    .copyright {
      color: var(--text-soft);
      font-size: 13px;
      padding-top: 22px;
      border-top: 1px solid rgba(190,214,255,.11);
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }

    @media (max-width: 1024px) {
      .hero-grid,
      .matrix-layout,
      .experience-wrap,
      .campaign-grid,
      .news-layout,
      .cta {
        grid-template-columns: 1fr;
      }

      .demo-board {
        min-height: auto;
      }

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

      .result-card.featured {
        grid-column: 1 / -1;
      }

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

      .recommend {
        position: static;
      }
    }

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

      .nav {
        min-height: 68px;
      }

      .mobile-toggle {
        display: inline-grid;
        place-items: center;
      }

      .nav-links {
        position: absolute;
        left: 14px;
        right: 14px;
        top: 76px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        border-radius: 22px;
        background: rgba(6, 16, 30, .94);
        border: 1px solid var(--line);
        box-shadow: var(--shadow-soft);
      }

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

      .nav-link {
        width: 100%;
        text-align: center;
      }

      .nav-actions .btn {
        display: none;
      }

      .hero {
        padding-top: 34px;
      }

      .hero-stage {
        padding: 24px;
        border-radius: 28px;
      }

      .hero-points,
      .quality-strip,
      .matrix-grid,
      .result-grid,
      .faq-grid,
      .form-row {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 62px 0;
      }

      .section-head {
        display: block;
      }

      .section-head h2 {
        margin-bottom: 12px;
      }

      .subtitle-row {
        grid-template-columns: 1fr;
        gap: 5px;
      }

      .subtitle-row p {
        white-space: normal;
      }

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

      .arrow {
        display: none;
      }

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

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

    @media (max-width: 520px) {
      .logo span:last-child {
        max-width: 190px;
        overflow: hidden;
        text-overflow: ellipsis;
      }

      .hero h1 {
        font-size: 36px;
      }

      .btn {
        width: 100%;
      }

      .hero-ctas {
        flex-direction: column;
      }

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

      .campaign,
      .cta {
        padding: 22px;
        border-radius: 26px;
      }

      .step {
        grid-template-columns: 46px 1fr;
      }

      .step-no {
        width: 46px;
        height: 46px;
        border-radius: 15px;
      }

      .step:not(:last-child)::after {
        left: 23px;
        top: 50px;
      }
    }