:root {
      --bg: #0a0e14;
      --bg-elevated: #111820;
      --text: #f0f4f8;
      --muted: rgba(148, 163, 184, 0.75);
      --card: rgba(17, 24, 32, 0.7);
      --card-border: rgba(56, 120, 200, 0.2);
      --primary: #2196f3;
      --primary-dark: #1565c0;
      --accent: #00e5ff;
      --gradient: linear-gradient(135deg, #1565c0 0%, #0d47a1 100%);
      --gradient-brand: linear-gradient(to right, #42a5f5 0%, #00e5ff 100%);
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family:
        "Inter",
        "PingFang SC",
        "Hiragino Sans GB",
        "Microsoft YaHei",
        system-ui,
        sans-serif;
      color: var(--text);
      line-height: 1.65;
      -webkit-font-smoothing: antialiased;
      background-color: var(--bg);
      background-image:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(33, 150, 243, 0.18) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 90% 80%, rgba(0, 229, 255, 0.08) 0%, transparent 50%),
        linear-gradient(180deg, #0a0e14 0%, #060810 100%);
      background-attachment: fixed;
    }

    @media (max-width: 768px) {
      body {
        background-attachment: scroll;
      }
    }

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

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

    /* Header */
    .header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      padding: 1rem 1.25rem;
      background: rgba(10, 14, 20, 0.85);
      backdrop-filter: blur(16px) saturate(1.2);
      border-bottom: 1px solid var(--card-border);
      box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    }

    .header-inner {
      max-width: 1100px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      text-decoration: none;
    }

    .brand-logo-img {
      display: block;
      height: 2.5rem;
      width: auto;
      filter: drop-shadow(0 0 12px rgba(33, 150, 243, 0.4));
    }

    .brand-text {
      font-size: 1.35rem;
      font-weight: 800;
      letter-spacing: 0.05em;
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.3));
      line-height: 1;
    }

    .nav-desktop {
      display: none;
      gap: 1.75rem;
      font-size: 0.875rem;
      color: var(--muted);
      font-weight: 500;
    }

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

    .nav-desktop a[aria-current="page"],
    .nav-overlay a[aria-current="page"] {
      color: var(--accent);
    }

    .btn-menu {
      background: none;
      border: none;
      padding: 0.5rem;
      cursor: pointer;
      color: var(--text);
    }

    .btn-menu svg {
      display: block;
    }

    .nav-overlay {
      position: fixed;
      inset: 0;
      top: 57px;
      background: rgba(10, 14, 20, 0.96);
      padding: 1.5rem;
      display: none;
      flex-direction: column;
      gap: 1rem;
      z-index: 99;
    }

    .nav-overlay.open {
      display: flex;
    }

    .nav-overlay a {
      padding: 1rem 0;
      border-bottom: 1px solid var(--card-border);
      color: var(--muted);
      font-size: 1rem;
      font-weight: 500;
    }

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

    @media (min-width: 900px) {
      .nav-desktop {
        display: flex;
      }
      .btn-menu {
        display: none;
      }
      .nav-overlay {
        display: none !important;
      }
    }

    /* Sections */
    .section {
      padding: clamp(3rem, 10vw, 5rem) 1.25rem;
      max-width: 1100px;
      margin: 0 auto;
    }

    /* Hero */
    .hero.section {
      max-width: none;
      width: 100vw;
      margin-left: calc(50% - 50vw);
      margin-right: calc(50% - 50vw);
      padding-left: 1.25rem;
      padding-right: 1.25rem;
      box-sizing: border-box;
    }

    .hero {
      padding-top: 8rem;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 50% 30%, rgba(33, 150, 243, 0.12) 0%, transparent 55%);
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
    }

    .hero-title {
      margin: 0;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.5rem;
    }

    .hero-line {
      display: block;
      color: #ffffff;
      font-size: clamp(2rem, 6vw, 3.25rem);
      font-weight: 800;
      line-height: 1.15;
      letter-spacing: -0.02em;
      text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    }

    .hero-line--accent {
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .hero .hero-brand {
      display: block;
      margin: 2rem 0 1.5rem;
      padding: 0;
      border: none;
      line-height: 0;
    }

    .skip-link {
      position: absolute;
      z-index: 1000;
      top: 0.75rem;
      left: -10000px;
      padding: 0.65rem 1rem;
      color: #fff;
      background: var(--primary-dark);
      border-radius: 0.5rem;
    }

    .skip-link:focus {
      left: 0.75rem;
    }

    .hero-brand-img {
      display: block;
      margin: 0 auto;
      height: clamp(4rem, 12vw, 6.5rem);
      width: auto;
      filter: drop-shadow(0 0 20px rgba(33, 150, 243, 0.5));
    }

    .hero-intro {
      color: var(--muted);
      max-width: 42rem;
      margin: 0 auto 3rem;
      font-size: 1.05rem;
      line-height: 1.85;
      font-weight: 400;
    }

    /* Download */
    .hero-download {
      margin-top: 2rem;
      margin-left: calc(50% - 50vw);
      margin-right: calc(50% - 50vw);
      width: 100vw;
      padding: 4rem max(1.25rem, env(safe-area-inset-right)) 5rem max(1.25rem, env(safe-area-inset-left));
      background:
        radial-gradient(ellipse 70% 80% at 50% 50%, rgba(33, 150, 243, 0.15) 0%, transparent 70%),
        rgba(6, 10, 18, 0.8);
      border-top: 1px solid var(--card-border);
      border-bottom: 1px solid var(--card-border);
    }

    .dl-label {
      text-align: center;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.15em;
      text-transform: uppercase;
      color: var(--accent);
      margin-bottom: 1.5rem;
    }

    .dl-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 1.25rem;
      max-width: 800px;
      margin: 0 auto;
    }

    @media (max-width: 540px) {
      .dl-grid {
        grid-template-columns: 1fr;
        max-width: 280px;
      }
    }

    .dl-btn {
      background: var(--card);
      color: var(--text);
      border: 1px solid var(--card-border);
      border-radius: 12px;
      padding: 1.5rem 0.75rem;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 0.75rem;
      font-size: 0.85rem;
      font-weight: 600;
      transition: all 0.25s ease;
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    }

    .dl-btn:hover {
      transform: translateY(-4px);
      border-color: var(--primary);
      background: rgba(33, 150, 243, 0.12);
      box-shadow: 0 12px 32px rgba(33, 150, 243, 0.2);
    }

    .dl-btn[aria-disabled="true"],
    .page-action-disabled {
      cursor: not-allowed;
      opacity: 0.62;
      box-shadow: none;
    }

    .dl-btn[aria-disabled="true"]:hover,
    .page-action-disabled:hover {
      transform: none;
      box-shadow: none;
    }

    .dl-btn svg {
      width: 32px;
      height: 32px;
      color: var(--primary);
    }

    /* Phones */
    .phones-wrap.section {
      max-width: none;
      width: 100vw;
      margin-left: calc(50% - 50vw);
      margin-right: calc(50% - 50vw);
      padding-left: 1.25rem;
      padding-right: 1.25rem;
      box-sizing: border-box;
    }

    .phones-wrap {
      position: relative;
      padding: 3.5rem 0 5rem;
      display: flex;
      justify-content: center;
      align-items: center;
      min-height: min(82vw, 480px);
      overflow: visible;
    }

    .phones {
      position: relative;
      z-index: 1;
      display: flex;
      flex-direction: row;
      justify-content: center;
      align-items: flex-end;
      gap: 0;
      width: 100%;
      max-width: min(100%, 720px);
      margin: 0 auto;
      padding: 0 min(1rem, 4vw);
      min-height: min(68vw, 400px);
      isolation: isolate;
    }

    .phone-img {
      width: min(40vw, 260px);
      height: auto;
      display: block;
      border-radius: 36px;
      transform-origin: 50% 100%;
      flex-shrink: 0;
      position: relative;
      box-shadow: 0 36px 72px -12px rgba(0, 0, 0, 0.78);
    }

    .phone-img--left {
      z-index: 1;
      transform: rotate(7deg);
      filter: drop-shadow(0 28px 44px rgba(0, 0, 0, 0.62));
    }

    .phone-img--right {
      z-index: 2;
      margin-left: min(-4.75rem, -12vw);
      transform: rotate(-7deg);
      filter: drop-shadow(-12px 26px 40px rgba(0, 0, 0, 0.68));
    }

    @media (max-width: 480px) {
      .phone-img {
        width: min(44vw, 208px);
        border-radius: 28px;
      }
      .phone-img--left {
        transform: rotate(6deg);
      }
      .phone-img--right {
        margin-left: min(-3rem, -9vw);
        transform: rotate(-6deg);
      }
    }

    /* Features */
    .features-head {
      text-align: center;
      font-size: clamp(1.25rem, 4vw, 1.75rem);
      font-weight: 800;
      margin-bottom: clamp(2.5rem, 6vw, 3.5rem);
      line-height: 1.35;
      color: var(--text);
    }

    .features-head span {
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .feat-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 1rem;
    }

    @media (min-width: 700px) {
      .feat-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
      }
    }

    .feat-card {
      background: var(--card);
      border: 1px solid var(--card-border);
      border-radius: 16px;
      padding: 2rem 1.5rem;
      text-align: left;
      transition: all 0.3s ease;
    }

    .feat-card:hover {
      border-color: var(--primary);
      background: rgba(33, 150, 243, 0.08);
      transform: translateY(-5px);
      box-shadow: 0 16px 40px rgba(33, 150, 243, 0.15);
    }

    .feat-icon {
      width: 48px;
      height: 48px;
      margin-bottom: 1.25rem;
      color: var(--primary);
      background: rgba(33, 150, 243, 0.12);
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 10px;
    }

    .feat-icon svg {
      width: 100%;
      height: 100%;
    }

    .feat-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      margin: 0 0 0.75rem;
      color: var(--text);
    }

    .feat-card p {
      margin: 0;
      font-size: 0.875rem;
      color: var(--muted);
      line-height: 1.65;
    }

    /* Testimonials */
    .testi-section {
      position: relative;
      overflow: hidden;
      background: rgba(6, 10, 18, 0.6);
      max-width: none;
      width: 100vw;
      margin-left: calc(50% - 50vw);
      margin-right: calc(50% - 50vw);
      padding: 5rem max(1.25rem, env(safe-area-inset-left));
      box-sizing: border-box;
      border-top: 1px solid var(--card-border);
    }

    .testi-section::before {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background: radial-gradient(circle at 50% 0%, rgba(33, 150, 243, 0.1) 0%, transparent 50%);
    }

    .testi-head {
      text-align: center;
      font-size: clamp(1.5rem, 4vw, 2rem);
      font-weight: 800;
      margin-bottom: 3rem;
      color: var(--text);
    }

    .testi-h-grad {
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .testi-viewport {
      max-width: 640px;
      margin: 0 auto;
      overflow: hidden;
    }

    .testi-track {
      display: flex;
      gap: 12px;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }

    .testi-track::-webkit-scrollbar {
      display: none;
    }

    .testi-slide {
      flex: 0 0 100%;
      scroll-snap-align: start;
    }

    .testi-card {
      background: var(--bg-elevated);
      border: 1px solid var(--card-border);
      border-radius: 16px;
      padding: 2.5rem;
      box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    }

    .testi-user {
      display: flex;
      align-items: center;
      gap: 1rem;
      margin-bottom: 1.5rem;
    }

    .testi-avatar {
      width: 50px;
      height: 50px;
      border-radius: 12px;
      background: var(--gradient);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: #fff;
      font-size: 1.1rem;
    }

    .testi-name {
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--accent);
    }

    .testi-role {
      font-size: 0.8rem;
      color: var(--muted);
      margin-top: 0.15rem;
    }

    .testi-text {
      font-style: italic;
      color: var(--text);
      line-height: 1.8;
      margin: 0;
      opacity: 0.9;
    }

    .dots {
      display: flex;
      justify-content: center;
      gap: 0.5rem;
      margin-top: 1.5rem;
    }

    .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      border: none;
      background: var(--card-border);
      cursor: pointer;
      padding: 0;
      transition: background 0.2s, transform 0.2s;
    }

    .dot.active {
      background: var(--primary);
      transform: scale(1.25);
    }

  /* Footer */
  .news-section {
    position: relative;
    width: 100vw;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
    padding: clamp(3rem, 7vw, 5rem) 1.25rem;
    box-sizing: border-box;
    background:
      radial-gradient(ellipse 70% 90% at 50% 0%, rgba(33, 150, 243, 0.12) 0%, transparent 70%),
      rgba(6, 10, 18, 0.72);
    border-top: 1px solid var(--card-border);
    border-bottom: 1px solid var(--card-border);
  }

  .news {
    max-width: 900px;
    margin: 0 auto;
  }

  .news-kicker {
    margin: 0 0 0.5rem;
    color: var(--accent);
    text-align: center;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.14em;
  }

  .news-title {
    margin: 0;
    color: var(--text);
    text-align: center;
    font-size: clamp(1.6rem, 4vw, 2.1rem);
    font-weight: 800;
  }

  .news-desc {
    max-width: 680px;
    margin: 0.8rem auto 2rem;
    color: var(--muted);
    text-align: center;
    line-height: 1.8;
  }

  .news-list {
    margin: 0;
    padding: 0;
    list-style: none;
    border-top: 1px solid var(--card-border);
  }

  .news-empty {
    padding: 1.2rem 0.25rem;
    color: var(--muted);
    text-align: center;
  }

  .news-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 1rem 0.25rem;
    border-bottom: 1px solid var(--card-border);
  }

  .news-link {
    min-width: 0;
    color: var(--text);
    font-weight: 500;
    line-height: 1.65;
    transition: color 0.2s ease;
  }

  .news-link:hover {
    color: var(--accent);
  }

  .news-time {
    flex: 0 0 auto;
    color: var(--muted);
    font-size: 0.82rem;
  }

  .news-more {
    display: flex;
    justify-content: center;
    margin-top: 1.75rem;
  }

  .news-more a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.65rem 1.25rem;
    border: 1px solid var(--card-border);
    border-radius: 999px;
    background: var(--gradient);
    color: #fff;
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(33, 150, 243, 0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }

  .news-more a:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(33, 150, 243, 0.28);
  }

  .news-more a:focus-visible,
  .news-link:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
  }

  @media (max-width: 540px) {
    .news-item {
      align-items: flex-start;
      flex-direction: column;
      gap: 0.35rem;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .news-link,
    .news-more a {
      transition: none;
    }

    .news-more a:hover {
      transform: none;
    }
  }

  .footer {
      padding: 5rem 1.25rem 3rem;
      background: #060810;
      border-top: 1px solid var(--card-border);
    }

    .footer-inner {
      max-width: 900px;
      margin: 0 auto;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 0.75rem;
      margin-bottom: 2.5rem;
    }

    .footer-brand img {
      height: 2rem;
      width: auto;
    }

    .footer-brand span {
      font-size: 1.1rem;
      font-weight: 700;
      background: var(--gradient-brand);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .footer-cols {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 2rem;
      margin-bottom: 2.5rem;
    }

    @media (min-width: 700px) {
      .footer-cols {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    .footer-col h4 {
      color: var(--text);
      margin-bottom: 1.25rem;
      font-size: 0.875rem;
      font-weight: 700;
    }

    .footer-col ul {
      list-style: none;
      margin: 0;
      padding: 0;
    }

    .footer-col li {
      margin-bottom: 0.65rem;
    }

    .footer-col a {
      color: var(--muted);
      font-size: 0.875rem;
      transition: color 0.2s;
    }

    .footer-col a:hover {
      color: var(--accent);
    }

  .copyright {
      margin-top: 3rem;
      padding-top: 2rem;
      border-top: 1px solid var(--card-border);
      text-align: center;
      font-size: 0.8rem;
      color: var(--muted);
  }

  /* Shared subpage components */
  .blog-heading {
    padding: 8.5rem 1.25rem 2.5rem;
    text-align: center;
  }

  .blog-layout {
    display: grid;
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 1.25rem;
    align-items: start;
    margin: 0 auto;
    max-width: 1000px;
    padding: 0 1.25rem 5rem;
  }

  .blog-sidebar,
  .newsc,
  .blog-article {
    min-width: 0;
    border: 1px solid var(--card-border);
    border-radius: 18px;
    background: var(--card);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
  }

  .blog-sidebar {
    padding: 1rem;
    position: sticky;
    top: 92px;
  }

  .blog-sidebar ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .blog-sidebar a {
    display: block;
    padding: 0.85rem 1rem;
    border-radius: 10px;
    color: var(--muted);
    font-weight: 650;
  }

  .blog-sidebar a.active,
  .blog-sidebar a:hover {
    color: var(--text);
    background: rgba(33, 150, 243, 0.15);
  }

  .blog-sidebar p {
    margin: 0.75rem 1rem 0.5rem;
    color: var(--muted);
    font-size: 0.86rem;
    line-height: 1.7;
  }

  .blog-sidebar .blog-back-link {
    margin-top: 0.5rem;
    border-top: 1px solid var(--card-border);
    font-size: 0.88rem;
  }

  .newsc {
    padding: clamp(1.25rem, 3vw, 2rem);
  }

  .newsc > h2 {
    margin: 0 0 1.25rem;
    color: var(--text);
    font-size: 1.35rem;
  }

  .blog-empty {
    margin: 0;
    padding: 2rem 1rem;
    border: 1px dashed var(--card-border);
    border-radius: 12px;
    color: var(--muted);
    text-align: center;
  }

  .blog-list {
    display: grid;
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .blog-list-item {
    display: flex;
    gap: 1.25rem;
    padding: 1rem;
    border: 1px solid var(--card-border);
    border-radius: 14px;
    background: rgba(10, 14, 20, 0.46);
  }

  .blog-thumb {
    display: flex;
    flex: 0 0 180px;
    align-items: center;
    justify-content: center;
    min-height: 128px;
    overflow: hidden;
    border-radius: 10px;
    background: linear-gradient(145deg, rgba(33, 150, 243, 0.18), rgba(103, 80, 220, 0.18));
  }

  .blog-thumb img {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 128px;
    object-fit: cover;
  }

  .blog-summary {
    display: flex;
    flex: 1;
    flex-direction: column;
    justify-content: space-between;
    min-width: 0;
  }

  .blog-summary h3 {
    margin: 0 0 0.55rem;
    font-size: 1.08rem;
    line-height: 1.55;
  }

  .blog-summary h3 a {
    color: var(--text);
  }

  .blog-summary h3 a:hover,
  .blog-summary .read-more {
    color: var(--accent);
  }

  .blog-summary p {
    margin: 0;
    color: var(--muted);
    line-height: 1.75;
  }

  .blog-date {
    display: block;
    margin-top: 1rem;
    color: var(--muted);
    font-size: 0.82rem;
    text-align: right;
  }

  .pages {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
    color: var(--muted);
  }

  .pages a,
  .pages span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    min-height: 40px;
    padding: 0 0.7rem;
    border: 1px solid var(--card-border);
    border-radius: 10px;
    color: var(--text);
  }

  .blog-article {
    padding: clamp(1.5rem, 4vw, 2.5rem);
  }

  .blog-kicker {
    margin: 0 0 0.6rem;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
  }

  .blog-article .title {
    margin: 0;
    color: var(--text);
    font-size: clamp(1.7rem, 4vw, 2.5rem);
    line-height: 1.35;
  }

  .post-time {
    display: block;
    margin: 0.8rem 0 1.75rem;
    color: var(--muted);
    font-size: 0.9rem;
  }

  .blog-article .content {
    color: var(--text);
    line-height: 1.9;
    overflow-wrap: anywhere;
  }

  .blog-article .content h2,
  .blog-article .content h3 {
    margin: 1.8rem 0 0.75rem;
    line-height: 1.45;
  }

  .blog-article .content img,
  .blog-article .content video {
    max-width: 100%;
    height: auto;
  }

  .article-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--card-border);
  }

  .article-nav p {
    margin: 0;
    color: var(--muted);
  }

  .article-nav a,
  .blog-detail-back {
    color: var(--accent);
  }

  .blog-detail-back {
    display: inline-flex;
    margin-top: 1rem;
    font-weight: 650;
  }

  @media (max-width: 700px) {
    .blog-layout {
      grid-template-columns: 1fr;
      padding-bottom: 3.5rem;
    }

    .blog-sidebar {
      position: static;
    }

    .blog-sidebar p {
      display: none;
    }
  }

  @media (max-width: 540px) {
    .blog-heading {
      padding-top: 7.25rem;
    }

    .blog-list-item {
      flex-direction: column;
    }

    .blog-thumb {
      flex-basis: auto;
      width: 100%;
      min-height: 170px;
    }

    .blog-thumb img {
      min-height: 170px;
    }

    .article-nav {
      flex-direction: column;
    }
  }

  .page-hero {
    max-width: 1100px;
    margin: 0 auto;
    padding: 8.5rem 1.25rem 3.25rem;
    text-align: center;
  }

  .page-kicker {
    margin: 0 0 0.75rem;
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
  }

  .page-title {
    margin: 0;
    color: var(--text);
    font-size: clamp(2rem, 6vw, 3.25rem);
    line-height: 1.2;
    font-weight: 800;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.45);
  }

  .page-title span {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  .page-lead {
    max-width: 48rem;
    margin: 1.25rem auto 0;
    color: var(--muted);
    font-size: clamp(1rem, 2.4vw, 1.15rem);
    line-height: 1.85;
  }

  .page-content {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1.25rem 5rem;
  }

  .page-section {
    margin: 0 0 1.5rem;
    padding: clamp(1.5rem, 4vw, 2.25rem);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    background: var(--card);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
  }

  .page-section h2 {
    margin: 0 0 1rem;
    color: var(--text);
    font-size: clamp(1.2rem, 3vw, 1.55rem);
    line-height: 1.4;
  }

  .page-section h3 {
    margin: 0 0 0.55rem;
    color: var(--text);
    font-size: 1.05rem;
  }

  .page-section p,
  .page-section li {
    color: var(--muted);
    line-height: 1.85;
  }

  .page-section p:last-child {
    margin-bottom: 0;
  }

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

  .page-card {
    min-width: 0;
    padding: 1.5rem;
    border: 1px solid var(--card-border);
    border-radius: 15px;
    background: rgba(10, 14, 20, 0.58);
  }

  .platform-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 76px;
    height: 76px;
    margin: 0 0 1.25rem;
    border: 1px solid rgba(0, 229, 255, 0.24);
    border-radius: 20px;
    background: linear-gradient(145deg, rgba(33, 150, 243, 0.2), rgba(103, 80, 220, 0.18));
    color: var(--accent);
    box-shadow: 0 10px 28px rgba(33, 150, 243, 0.14);
  }

  .platform-icon svg {
    display: block;
    width: 54px;
    height: 54px;
  }

  .page-card p {
    margin: 0;
    font-size: 0.95rem;
  }

  .page-card a,
  .page-section a.text-link {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 0.2em;
  }

  .page-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1.75rem;
  }

  .page-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0.75rem 1.25rem;
    border: 1px solid var(--card-border);
    border-radius: 999px;
    background: var(--gradient);
    color: #fff;
    font-weight: 700;
    box-shadow: 0 8px 24px rgba(33, 150, 243, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }

  .page-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(33, 150, 243, 0.3);
  }

  .page-action-disabled:hover {
    transform: none;
    box-shadow: none;
  }

  .page-notice {
    padding: 1rem 1.1rem;
    border-left: 3px solid var(--accent);
    border-radius: 0 10px 10px 0;
    background: rgba(33, 150, 243, 0.08);
    color: var(--muted);
    line-height: 1.8;
  }

  .faq-list {
    display: grid;
    gap: 0.8rem;
  }

  .faq-item {
    padding: 1.1rem 1.25rem;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    background: rgba(10, 14, 20, 0.5);
  }

  .faq-item h2 {
    margin: 0;
    font-size: 1.05rem;
  }

  .faq-item p {
    margin: 0.55rem 0 0;
  }

  @media (max-width: 640px) {
    .page-hero {
      padding-top: 7.25rem;
      padding-bottom: 2.25rem;
    }

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

    .page-content {
      padding-bottom: 3.5rem;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .page-action {
      transition: none;
    }

    .page-action:hover {
      transform: none;
    }
  }