/* roulang page: index */
:root {
      --color-primary: #1769ff;
      --color-primary-dark: #0f46b7;
      --color-secondary: #00a8ff;
      --color-accent: #ffb020;
      --color-success: #18b77b;
      --color-danger: #ff5a6a;
      --color-ink: #13213c;
      --color-text: #34405e;
      --color-muted: #6f7a95;
      --color-soft: #f4f8ff;
      --color-soft-2: #edf4ff;
      --color-white: #ffffff;
      --color-line: #dfe8f7;
      --shadow-sm: 0 8px 24px rgba(20, 56, 120, .08);
      --shadow-md: 0 16px 48px rgba(20, 56, 120, .13);
      --shadow-lg: 0 28px 80px rgba(20, 56, 120, .18);
      --radius-sm: 12px;
      --radius-md: 18px;
      --radius-lg: 28px;
      --radius-pill: 999px;
      --container: 1180px;
      --ease: all .22s ease;
      --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-sans);
      color: var(--color-text);
      background:
        radial-gradient(circle at 12% 6%, rgba(23, 105, 255, .08), transparent 28%),
        linear-gradient(180deg, #f7fbff 0%, #ffffff 42%, #f5f9ff 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

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

    a:hover,
    a:focus {
      color: var(--color-primary);
    }

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

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

    button {
      cursor: pointer;
    }

    ::selection {
      background: rgba(23, 105, 255, .16);
      color: var(--color-ink);
    }

    .site-shell {
      min-height: 100vh;
    }

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

    .section {
      padding: 82px 0;
      position: relative;
    }

    .section.compact {
      padding: 56px 0;
    }

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

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 12px;
      padding: 8px 12px;
      border-radius: var(--radius-pill);
      background: rgba(23, 105, 255, .09);
      color: var(--color-primary-dark);
      font-weight: 800;
      font-size: 13px;
      letter-spacing: .04em;
    }

    .section-title {
      margin: 0;
      color: var(--color-ink);
      font-size: clamp(28px, 3vw, 44px);
      line-height: 1.18;
      letter-spacing: -.03em;
      font-weight: 900;
    }

    .section-desc {
      margin: 12px 0 0;
      max-width: 680px;
      color: var(--color-muted);
      font-size: 16px;
    }

    .muted {
      color: var(--color-muted);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, .86);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(223, 232, 247, .78);
      box-shadow: 0 10px 34px rgba(30, 72, 130, .05);
    }

    .nav-main {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
      min-height: 74px;
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: max-content;
      color: var(--color-ink);
      font-weight: 950;
      letter-spacing: -.04em;
      font-size: 21px;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary) 0%, #55c5ff 100%);
      box-shadow: 0 12px 28px rgba(23, 105, 255, .28);
      position: relative;
      overflow: hidden;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      width: 26px;
      height: 26px;
      border: 2px solid rgba(255, 255, 255, .54);
      border-radius: 50%;
      right: -7px;
      bottom: -7px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin: 0;
      list-style: none;
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 15px;
      border-radius: var(--radius-pill);
      color: var(--color-text);
      font-weight: 800;
      font-size: 15px;
    }

    .nav-links a:hover,
    .nav-links a:focus {
      background: rgba(23, 105, 255, .08);
      color: var(--color-primary-dark);
    }

    .nav-links a.active {
      background: var(--color-primary);
      color: #fff;
      box-shadow: 0 10px 26px rgba(23, 105, 255, .24);
    }

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

    .header-search {
      display: flex;
      align-items: center;
      gap: 8px;
      width: 218px;
      border: 1px solid var(--color-line);
      border-radius: var(--radius-pill);
      background: #fff;
      padding: 9px 12px;
      box-shadow: var(--shadow-sm);
    }

    .header-search i {
      color: var(--color-muted);
    }

    .header-search input {
      width: 100%;
      border: 0;
      outline: none;
      font-size: 14px;
      color: var(--color-ink);
      background: transparent;
      box-shadow: none;
      height: auto;
      padding: 0;
      margin: 0;
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--color-line);
      border-radius: 14px;
      background: #fff;
      color: var(--color-ink);
      box-shadow: var(--shadow-sm);
    }

    .progress-nav-wrap {
      border-top: 1px solid rgba(223, 232, 247, .78);
      background: rgba(247, 251, 255, .82);
    }

    .progress-nav {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      padding: 12px 0;
    }

    .progress-step {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 16px;
      background: #fff;
      border: 1px solid rgba(223, 232, 247, .88);
      color: var(--color-text);
      box-shadow: 0 7px 18px rgba(25, 72, 142, .04);
    }

    .progress-step:hover,
    .progress-step:focus {
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
      border-color: rgba(23, 105, 255, .24);
      color: var(--color-primary-dark);
    }

    .step-num {
      width: 30px;
      height: 30px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      background: rgba(23, 105, 255, .1);
      color: var(--color-primary);
      font-weight: 900;
      font-size: 12px;
    }

    .step-text {
      font-weight: 850;
      font-size: 14px;
      white-space: nowrap;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 20px;
      border-radius: var(--radius-pill);
      border: 1px solid transparent;
      font-weight: 900;
      line-height: 1;
      transition: var(--ease);
      box-shadow: none;
      user-select: none;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--color-primary), #43b5ff);
      box-shadow: 0 16px 34px rgba(23, 105, 255, .28);
    }

    .btn-primary:hover,
    .btn-primary:focus {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 22px 48px rgba(23, 105, 255, .35);
    }

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

    .btn-ghost:hover,
    .btn-ghost:focus {
      background: rgba(23, 105, 255, .08);
      border-color: rgba(23, 105, 255, .28);
      transform: translateY(-2px);
    }

    .btn-dark {
      color: #fff;
      background: #13213c;
      box-shadow: 0 16px 34px rgba(19, 33, 60, .18);
    }

    .btn-dark:hover,
    .btn-dark:focus {
      color: #fff;
      background: #20365e;
      transform: translateY(-2px);
    }

    .btn-outline {
      color: var(--color-ink);
      background: transparent;
      border-color: var(--color-line);
    }

    .btn-outline:hover,
    .btn-outline:focus {
      border-color: rgba(23, 105, 255, .35);
      color: var(--color-primary-dark);
      background: rgba(23, 105, 255, .06);
    }

    .btn:focus,
    .progress-step:focus,
    .nav-links a:focus,
    .brand-logo:focus,
    input:focus,
    textarea:focus,
    select:focus {
      outline: 3px solid rgba(23, 105, 255, .18);
      outline-offset: 3px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 7px 10px;
      border-radius: var(--radius-pill);
      font-size: 12px;
      font-weight: 900;
      color: var(--color-primary-dark);
      background: rgba(23, 105, 255, .09);
      border: 1px solid rgba(23, 105, 255, .12);
    }

    .hero {
      padding: 34px 0 0;
    }

    .hero-stage {
      min-height: 560px;
      position: relative;
      overflow: hidden;
      border-radius: 0 0 44px 44px;
      color: #fff;
      background:
        linear-gradient(110deg, rgba(9, 26, 62, .92) 0%, rgba(12, 64, 146, .84) 49%, rgba(23, 105, 255, .74) 100%),
        radial-gradient(circle at 85% 15%, rgba(0, 214, 255, .58), transparent 34%),
        linear-gradient(135deg, #0a1e47, #1769ff);
      box-shadow: var(--shadow-lg);
    }

    .hero-stage::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
      background-size: 44px 44px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.85), rgba(0,0,0,.2));
    }

    .hero-stage::after {
      content: "";
      position: absolute;
      width: 620px;
      height: 620px;
      right: -180px;
      top: -210px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255, 255, 255, .22), rgba(255, 255, 255, 0) 65%);
    }

    .hero-content {
      position: relative;
      z-index: 2;
      width: min(1040px, calc(100% - 40px));
      margin: 0 auto;
      min-height: 560px;
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 78px 0 112px;
      text-align: center;
    }

    .hero-eyebrow {
      margin: 0 auto 20px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 9px 14px;
      border-radius: var(--radius-pill);
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .22);
      color: rgba(255, 255, 255, .92);
      font-weight: 900;
      backdrop-filter: blur(14px);
    }

    .hero h1 {
      margin: 0;
      color: #fff;
      font-size: clamp(42px, 7vw, 78px);
      line-height: 1.03;
      letter-spacing: -.06em;
      font-weight: 950;
      text-shadow: 0 20px 70px rgba(0, 0, 0, .22);
    }

    .hero-lead {
      width: min(820px, 100%);
      margin: 22px auto 0;
      color: rgba(255, 255, 255, .82);
      font-size: clamp(17px, 1.8vw, 21px);
      line-height: 1.8;
    }

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

    .hero-actions .btn-ghost {
      background: rgba(255, 255, 255, .95);
    }

    .hero-metrics {
      margin: 34px auto 0;
      display: grid;
      grid-template-columns: repeat(3, minmax(160px, 1fr));
      gap: 14px;
      width: min(760px, 100%);
    }

    .hero-metric {
      padding: 16px 18px;
      border-radius: 20px;
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .18);
      backdrop-filter: blur(16px);
    }

    .hero-metric strong {
      display: block;
      color: #fff;
      font-size: 24px;
      font-weight: 950;
      line-height: 1.2;
    }

    .hero-metric span {
      display: block;
      margin-top: 4px;
      color: rgba(255, 255, 255, .72);
      font-size: 13px;
      font-weight: 750;
    }

    .countdown-bar {
      position: absolute;
      left: 50%;
      bottom: 24px;
      z-index: 3;
      width: min(1030px, calc(100% - 40px));
      transform: translateX(-50%);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 16px 18px;
      border-radius: 22px;
      background: rgba(255, 255, 255, .96);
      color: var(--color-ink);
      box-shadow: 0 18px 48px rgba(9, 26, 62, .22);
    }

    .countdown-title {
      display: flex;
      align-items: center;
      gap: 12px;
      font-weight: 950;
      color: var(--color-ink);
    }

    .countdown-title i {
      color: var(--color-accent);
      font-size: 20px;
    }

    .countdown-items {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }

    .time-box {
      min-width: 64px;
      padding: 7px 10px;
      border-radius: 14px;
      background: #f1f6ff;
      border: 1px solid var(--color-line);
      text-align: center;
      font-weight: 950;
      color: var(--color-primary-dark);
    }

    .time-box small {
      display: block;
      color: var(--color-muted);
      font-size: 11px;
      font-weight: 800;
      margin-top: 1px;
    }

    .card {
      background: rgba(255, 255, 255, .92);
      border: 1px solid rgba(223, 232, 247, .9);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-sm);
      transition: var(--ease);
      overflow: hidden;
    }

    .card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(23, 105, 255, .22);
    }

    .feature-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr .9fr;
      gap: 18px;
      align-items: stretch;
    }

    .feature-card {
      padding: 28px;
      min-height: 242px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .feature-card.large {
      background:
        linear-gradient(135deg, rgba(23, 105, 255, .1), rgba(255, 255, 255, .92)),
        #fff;
    }

    .feature-icon {
      width: 52px;
      height: 52px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      background: linear-gradient(135deg, rgba(23, 105, 255, .14), rgba(0, 168, 255, .1));
      color: var(--color-primary);
      font-size: 20px;
      margin-bottom: 18px;
    }

    .feature-card h3,
    .spec-card h3,
    .topic-card h3,
    .step-card h3,
    .case-card h3,
    .price-card h3,
    .security-card h3 {
      margin: 0;
      color: var(--color-ink);
      font-size: 21px;
      line-height: 1.35;
      font-weight: 950;
      letter-spacing: -.02em;
    }

    .feature-card p,
    .topic-card p,
    .step-card p,
    .case-card p,
    .price-card p,
    .security-card p {
      margin: 12px 0 0;
      color: var(--color-muted);
      font-size: 15px;
    }

    .mini-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 20px;
    }

    .mini-tag {
      padding: 7px 10px;
      border-radius: var(--radius-pill);
      background: #f0f6ff;
      color: var(--color-primary-dark);
      font-size: 12px;
      font-weight: 850;
    }

    .spec-wrap {
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 20px;
      align-items: stretch;
    }

    .spec-panel {
      padding: 30px;
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, #13213c, #1769ff);
      color: #fff;
      box-shadow: var(--shadow-md);
      position: relative;
      overflow: hidden;
    }

    .spec-panel::after {
      content: "";
      position: absolute;
      width: 260px;
      height: 260px;
      right: -80px;
      bottom: -100px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .14);
    }

    .spec-panel h2 {
      position: relative;
      z-index: 1;
      margin: 0;
      color: #fff;
      font-size: 36px;
      line-height: 1.18;
      font-weight: 950;
      letter-spacing: -.04em;
    }

    .spec-panel p {
      position: relative;
      z-index: 1;
      margin: 16px 0 0;
      color: rgba(255, 255, 255, .78);
    }

    .status-line {
      position: relative;
      z-index: 1;
      margin-top: 26px;
      padding: 14px;
      border-radius: 18px;
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .18);
    }

    .status-line strong {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 9px;
      color: #fff;
      font-size: 14px;
    }

    .status-track {
      height: 9px;
      border-radius: var(--radius-pill);
      background: rgba(255, 255, 255, .2);
      overflow: hidden;
    }

    .status-fill {
      width: 78%;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--color-accent), #5dffbd);
    }

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

    .spec-card {
      padding: 22px;
    }

    .spec-card .value {
      display: block;
      margin-bottom: 8px;
      color: var(--color-primary);
      font-size: 31px;
      font-weight: 950;
      line-height: 1;
      letter-spacing: -.04em;
    }

    .spec-card p {
      margin: 10px 0 0;
      color: var(--color-muted);
      font-size: 14px;
    }

    .topic-strip {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 18px;
      align-items: stretch;
    }

    .topic-card {
      padding: 26px;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-content: flex-start;
      padding: 26px;
    }

    .cloud-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 10px 14px;
      border-radius: var(--radius-pill);
      background: #fff;
      border: 1px solid var(--color-line);
      color: var(--color-text);
      font-weight: 850;
      box-shadow: 0 6px 18px rgba(20, 56, 120, .05);
      transition: var(--ease);
    }

    .cloud-tag:hover {
      transform: translateY(-2px);
      color: var(--color-primary-dark);
      border-color: rgba(23, 105, 255, .25);
      box-shadow: var(--shadow-sm);
    }

    .steps-flow {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      counter-reset: step;
    }

    .step-card {
      padding: 24px;
      position: relative;
    }

    .step-card::before {
      counter-increment: step;
      content: "0" counter(step);
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 15px;
      margin-bottom: 18px;
      color: var(--color-primary);
      background: rgba(23, 105, 255, .1);
      font-weight: 950;
    }

    .proof-band {
      padding: 28px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--color-line);
      box-shadow: var(--shadow-md);
    }

    .proof-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
      margin-bottom: 20px;
    }

    .proof-item {
      padding: 20px;
      border-radius: 20px;
      background: #f6faff;
      border: 1px solid var(--color-line);
      text-align: center;
    }

    .proof-item strong {
      display: block;
      color: var(--color-primary);
      font-size: 32px;
      font-weight: 950;
      letter-spacing: -.04em;
      line-height: 1.1;
    }

    .proof-item span {
      display: block;
      margin-top: 7px;
      color: var(--color-muted);
      font-size: 13px;
      font-weight: 800;
    }

    .case-row {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }

    .case-card {
      padding: 22px;
      background: #fbfdff;
      border: 1px solid var(--color-line);
      border-radius: 20px;
    }

    .quote-mark {
      width: 36px;
      height: 36px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: rgba(23, 105, 255, .1);
      color: var(--color-primary);
      margin-bottom: 12px;
    }

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

    .price-card {
      padding: 28px;
      position: relative;
    }

    .price-card.featured {
      border-color: rgba(23, 105, 255, .38);
      box-shadow: var(--shadow-lg);
      transform: translateY(-8px);
    }

    .price-card.featured:hover {
      transform: translateY(-12px);
    }

    .price-label {
      position: absolute;
      top: 18px;
      right: 18px;
      padding: 6px 10px;
      border-radius: var(--radius-pill);
      background: rgba(255, 176, 32, .15);
      color: #9a6100;
      font-size: 12px;
      font-weight: 950;
    }

    .price {
      margin: 18px 0 12px;
      color: var(--color-ink);
      font-size: 42px;
      font-weight: 950;
      letter-spacing: -.05em;
      line-height: 1;
    }

    .price small {
      font-size: 14px;
      color: var(--color-muted);
      font-weight: 800;
      letter-spacing: 0;
    }

    .benefit-list {
      margin: 22px 0 26px;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 12px;
    }

    .benefit-list li {
      display: flex;
      gap: 10px;
      color: var(--color-text);
      font-size: 14px;
    }

    .benefit-list i {
      color: var(--color-success);
      margin-top: 6px;
    }

    .security-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
    }

    .security-card {
      padding: 24px;
      text-align: left;
    }

    .security-card i {
      width: 46px;
      height: 46px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      color: var(--color-primary);
      background: rgba(23, 105, 255, .1);
      font-size: 19px;
      margin-bottom: 16px;
    }

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

    .faq-item {
      border-radius: 20px;
      background: #fff;
      border: 1px solid var(--color-line);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 20px 22px;
      background: transparent;
      border: 0;
      color: var(--color-ink);
      font-size: 17px;
      font-weight: 950;
      text-align: left;
    }

    .faq-question i {
      color: var(--color-primary);
      transition: var(--ease);
    }

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

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

    .faq-item.is-open .faq-question i {
      transform: rotate(180deg);
    }

    .news-layout {
      display: grid;
      grid-template-columns: 1.35fr .65fr;
      gap: 22px;
      align-items: start;
    }

    .news-list {
      background: #fff;
      border: 1px solid var(--color-line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      overflow: hidden;
    }

    .news-link {
      display: grid;
      grid-template-columns: 92px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 20px 22px;
      border-bottom: 1px solid var(--color-line);
    }

    .news-link:last-child {
      border-bottom: 0;
    }

    .news-date {
      display: inline-flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      min-height: 70px;
      border-radius: 18px;
      background: #f2f7ff;
      color: var(--color-primary-dark);
      font-weight: 950;
    }

    .news-date small {
      color: var(--color-muted);
      font-size: 12px;
      font-weight: 800;
    }

    .news-title {
      margin: 0;
      color: var(--color-ink);
      font-size: 18px;
      line-height: 1.35;
      font-weight: 950;
    }

    .news-summary {
      margin: 7px 0 0;
      color: var(--color-muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .news-arrow {
      width: 38px;
      height: 38px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: rgba(23, 105, 255, .08);
      color: var(--color-primary);
      transition: var(--ease);
    }

    .news-link:hover {
      background: #f8fbff;
    }

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

    .recommend-panel {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, #ffffff, #f2f7ff);
      border: 1px solid var(--color-line);
      box-shadow: var(--shadow-sm);
      position: sticky;
      top: 156px;
    }

    .recommend-panel h3 {
      margin: 0;
      color: var(--color-ink);
      font-size: 22px;
      font-weight: 950;
    }

    .recommend-list {
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 12px;
    }

    .recommend-list li {
      padding: 14px;
      border-radius: 16px;
      background: #fff;
      border: 1px solid rgba(223, 232, 247, .88);
    }

    .recommend-list a {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--color-text);
      font-weight: 850;
      line-height: 1.5;
    }

    .recommend-list i {
      color: var(--color-accent);
      margin-top: 5px;
    }

    .booking-section {
      padding-bottom: 96px;
    }

    .booking-card {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 0;
      border-radius: 34px;
      overflow: hidden;
      background: #fff;
      border: 1px solid var(--color-line);
      box-shadow: var(--shadow-lg);
    }

    .booking-copy {
      padding: 42px;
      background:
        radial-gradient(circle at 10% 20%, rgba(255, 176, 32, .18), transparent 32%),
        linear-gradient(135deg, #13213c, #1769ff);
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    .booking-copy::after {
      content: "";
      position: absolute;
      width: 300px;
      height: 300px;
      border-radius: 50%;
      right: -130px;
      bottom: -120px;
      background: rgba(255, 255, 255, .13);
    }

    .booking-copy h2 {
      position: relative;
      z-index: 1;
      margin: 0;
      color: #fff;
      font-size: clamp(30px, 4vw, 46px);
      line-height: 1.18;
      font-weight: 950;
      letter-spacing: -.04em;
    }

    .booking-copy p {
      position: relative;
      z-index: 1;
      margin: 16px 0 0;
      color: rgba(255, 255, 255, .78);
    }

    .booking-points {
      position: relative;
      z-index: 1;
      margin: 28px 0 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 13px;
    }

    .booking-points li {
      display: flex;
      gap: 11px;
      color: rgba(255, 255, 255, .9);
      font-weight: 800;
    }

    .booking-points i {
      color: #72ffbe;
      margin-top: 6px;
    }

    .lead-form {
      padding: 38px;
      background: #fff;
    }

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

    .form-field {
      display: grid;
      gap: 8px;
    }

    .form-field.full {
      grid-column: 1 / -1;
    }

    .form-field label {
      color: var(--color-ink);
      font-size: 14px;
      font-weight: 900;
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
      width: 100%;
      min-height: 48px;
      margin: 0;
      padding: 12px 14px;
      border: 1px solid var(--color-line);
      border-radius: 16px;
      background: #f9fbff;
      color: var(--color-ink);
      box-shadow: none;
      transition: var(--ease);
      font-size: 15px;
    }

    .form-field textarea {
      min-height: 112px;
      resize: vertical;
    }

    .form-field input:hover,
    .form-field select:hover,
    .form-field textarea:hover {
      border-color: rgba(23, 105, 255, .26);
      background: #fff;
    }

    .privacy-note {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin: 18px 0 0;
      padding: 14px;
      border-radius: 18px;
      background: #f4f8ff;
      color: var(--color-muted);
      font-size: 13px;
      line-height: 1.65;
    }

    .privacy-note i {
      color: var(--color-success);
      margin-top: 4px;
    }

    .form-message {
      display: none;
      margin-top: 14px;
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(24, 183, 123, .1);
      color: #0b7c50;
      border: 1px solid rgba(24, 183, 123, .22);
      font-weight: 850;
    }

    .form-message.show {
      display: block;
    }

    .site-footer {
      background: #0d1930;
      color: rgba(255, 255, 255, .72);
      padding: 56px 0 26px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1fr .9fr .8fr;
      gap: 34px;
      align-items: start;
    }

    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      color: #fff;
      font-size: 22px;
      font-weight: 950;
      letter-spacing: -.04em;
      margin-bottom: 14px;
    }

    .footer-brand .brand-mark {
      width: 40px;
      height: 40px;
      box-shadow: none;
    }

    .footer-title {
      margin: 0 0 14px;
      color: #fff;
      font-size: 16px;
      font-weight: 950;
    }

    .footer-links {
      margin: 0;
      padding: 0;
      list-style: none;
      display: grid;
      gap: 9px;
    }

    .footer-links a {
      color: rgba(255, 255, 255, .72);
    }

    .footer-links a:hover,
    .footer-links a:focus {
      color: #fff;
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      margin-top: 34px;
      padding-top: 22px;
      border-top: 1px solid rgba(255, 255, 255, .12);
      font-size: 13px;
    }

    .footer-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .footer-badges span {
      padding: 6px 10px;
      border-radius: var(--radius-pill);
      background: rgba(255, 255, 255, .08);
      color: rgba(255, 255, 255, .78);
    }

    @media (max-width: 1024px) {
      .header-search {
        display: none;
      }

      .feature-grid,
      .spec-wrap,
      .topic-strip,
      .news-layout,
      .booking-card {
        grid-template-columns: 1fr;
      }

      .steps-flow,
      .proof-grid,
      .security-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .recommend-panel {
        position: static;
      }

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

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

      .section {
        padding: 62px 0;
      }

      .nav-main {
        min-height: 68px;
      }

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

      .nav-links {
        position: absolute;
        left: 14px;
        right: 14px;
        top: 74px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 12px;
        border-radius: 22px;
        background: #fff;
        border: 1px solid var(--color-line);
        box-shadow: var(--shadow-md);
      }

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

      .nav-links a {
        justify-content: center;
      }

      .progress-nav {
        display: flex;
        overflow-x: auto;
        padding-bottom: 14px;
        scrollbar-width: none;
      }

      .progress-nav::-webkit-scrollbar {
        display: none;
      }

      .progress-step {
        min-width: 162px;
      }

      .hero-stage {
        min-height: 640px;
        border-radius: 0 0 32px 32px;
      }

      .hero-content {
        min-height: 640px;
        padding: 68px 0 156px;
      }

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

      .countdown-bar {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
      }

      .countdown-title,
      .countdown-items {
        justify-content: center;
      }

      .feature-grid,
      .spec-grid,
      .price-grid,
      .case-row,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .section-head {
        display: block;
      }

      .booking-copy,
      .lead-form {
        padding: 28px;
      }

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

      .news-date {
        grid-column: 1 / -1;
        min-height: 48px;
        flex-direction: row;
        gap: 8px;
      }

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

    @media (max-width: 520px) {
      .brand-logo {
        font-size: 18px;
      }

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

      .hero h1 {
        font-size: 38px;
      }

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

      .section-title {
        font-size: 28px;
      }

      .steps-flow,
      .proof-grid,
      .security-grid,
      .form-grid {
        grid-template-columns: 1fr;
      }

      .time-box {
        min-width: 58px;
      }

      .feature-card,
      .spec-panel,
      .topic-card,
      .tag-cloud,
      .proof-band,
      .price-card,
      .security-card {
        padding: 22px;
      }
    }