:root {
  --bg: #050812;
  --ink: #e7efff;
  --sub: #95a8cc;
  --line: #1d2d4d;
  --surface: #0a1324;
  --brand: #00d2ff;
  --brand-2: #00bfa6;
  --accent: #4d7dff;
      --radius: 18px;
  --shadow: 0 16px 36px rgba(0, 0, 0, 0.42);
    }

    * {
      box-sizing: border-box;
    }

    html,
    body {
      margin: 0;
      padding: 0;
    }

    body {
      font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at 12% 12%, rgba(0, 210, 255, 0.24), transparent 36%),
        radial-gradient(circle at 88% 22%, rgba(77, 125, 255, 0.2), transparent 32%),
        radial-gradient(circle at 55% 78%, rgba(0, 191, 166, 0.12), transparent 34%),
        linear-gradient(160deg, #050812 0%, #081126 42%, #090f1f 100%);
      line-height: 1.58;
    }

    h1,
    h2,
    h3,
    .logo,
    .btn,
    .chip {
      font-family: "Outfit", "Noto Sans SC", sans-serif;
    }

    a {
      color: inherit;
    }

    .container {
      width: min(1160px, calc(100% - 2rem));
      margin-inline: auto;
    }

    .topbar {
      position: sticky;
      top: 0;
      z-index: 50;
          background: rgba(5, 9, 18, 0.28);
          border-bottom: 1px solid transparent;
          backdrop-filter: blur(4px);
          transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    }

    .topbar.scrolled {
      background: rgba(5, 9, 18, 0.88);
      border-bottom-color: rgba(0, 210, 255, 0.45);
      backdrop-filter: blur(12px);
      box-shadow: 0 8px 28px rgba(0, 0, 0, 0.42), 0 0 24px rgba(0, 210, 255, 0.16);
    }

    .nav {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 0.7rem;
      text-decoration: none;
      font-weight: 800;
      letter-spacing: 0.03em;
    }

    .logo-dot {
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: conic-gradient(from 45deg, var(--brand), #4d7dff, var(--brand-2), var(--brand));
      box-shadow: 0 0 0 5px rgba(0, 210, 255, 0.15), 0 0 20px rgba(0, 210, 255, 0.55);
    }

    .menu {
      display: flex;
      gap: 1.05rem;
      align-items: center;
    }

    .menu a {
      text-decoration: none;
      color: #c5d8ff;
      font-weight: 600;
    }

    .menu a:hover {
      color: var(--brand);
    }

    .btn {
      border: 0;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      text-decoration: none;
      border-radius: 999px;
      font-weight: 700;
      padding: 0.72rem 1.2rem;
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .btn-main {
      color: #02101f;
      background: linear-gradient(90deg, var(--brand), #69e4ff);
      box-shadow: 0 10px 24px rgba(0, 210, 255, 0.35), 0 0 22px rgba(0, 191, 166, 0.18);
    }

    .btn-main:hover {
      transform: translateY(-2px);
    }

    .btn-soft {
      color: var(--brand);
      border: 1px solid rgba(0, 210, 255, 0.38);
      background: rgba(9, 18, 38, 0.72);
    }

    .hero {
      padding: 4rem 0 2.6rem;
      position: relative;
      overflow: hidden;
    }

    .hero::before,
    .hero::after {
      content: "";
      position: absolute;
      border-radius: 999px;
      filter: blur(36px);
      pointer-events: none;
      z-index: -1;
    }

    .hero::before {
      width: 280px;
      height: 280px;
      right: -50px;
      top: -70px;
      background: rgba(0, 104, 255, 0.22);
    }

    .hero::after {
      width: 300px;
      height: 300px;
      left: -90px;
      bottom: -120px;
      background: rgba(255, 122, 69, 0.2);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: 1.25fr 1fr;
      gap: 1rem;
      align-items: stretch;
    }

    .chip {
      display: inline-flex;
      align-items: center;
      padding: 0.36rem 0.68rem;
      border-radius: 999px;
      background: #e9f1ff;
      color: #1f4bcc;
      font-size: 0.85rem;
      font-weight: 700;
      letter-spacing: 0.04em;
      text-transform: uppercase;
    }

    h1 {
      margin: 0.9rem 0 0;
      font-size: clamp(2rem, 5vw, 3.6rem);
      line-height: 1.05;
    }

    .hero p {
      color: var(--sub);
      margin: 1rem 0 0;
      max-width: 56ch;
    }

    .hero-actions {
      margin-top: 1.3rem;
      display: flex;
      gap: 0.7rem;
      flex-wrap: wrap;
    }

    .status-board {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 1.1rem;
    }

    .status-board h2 {
      margin: 0;
      font-size: 1.16rem;
    }

    .ticker {
      margin: 0.85rem 0 0;
      display: grid;
      gap: 0.65rem;
    }

    .ticker-item {
      border: 1px solid #e3e8f9;
      border-radius: 14px;
      background: #fbfcff;
      padding: 0.7rem 0.8rem;
      color: #4e5e80;
    }

    .ticker-item strong {
      color: #23345f;
    }

    .hero-showcase {
      position: relative;
      min-height: 100vh;
      min-height: 100svh;
      overflow: hidden;
      background: #101522;
    }

    .showcase-track {
      position: relative;
      min-height: 100vh;
      min-height: 100svh;
    }

    .showcase-slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      visibility: hidden;
      transition: opacity 0.85s ease;
      background-size: cover;
      background-position: center;
    }

    .showcase-slide.active {
      opacity: 1;
      visibility: visible;
    }

    .showcase-mask {
      position: absolute;
      inset: 0;
      /* background: linear-gradient(95deg, rgba(8, 12, 20, 0.75), rgba(8, 12, 20, 0.18)); */
    }

    .showcase-content {
      position: relative;
      z-index: 1;
      top:200px;
      min-height: 100vh;
      min-height: 100svh;
      display: block;
      flex-direction: column;
      justify-content: center;
    }

    .showcase-content h1,
    .showcase-content h2,
    .showcase-content p {
      color: #fff;
    }

    .showcase-content h2 {
      margin: 0.8rem 0 0;
      font-size: clamp(2rem, 4.2vw, 3rem);
      line-height: 1.05;
    }

    .showcase-content h1,
    .showcase-content h2 {
      text-shadow: 0 0 12px rgba(0, 210, 255, 0.3), 0 0 32px rgba(77, 125, 255, 0.2);
      animation: hero-title-breathe 4.8s ease-in-out infinite;
    }

    @keyframes hero-title-breathe {
      0%,
      100% {
        text-shadow: 0 0 10px rgba(0, 210, 255, 0.26), 0 0 26px rgba(77, 125, 255, 0.18);
        transform: translateY(0);
      }
      50% {
        text-shadow: 0 0 16px rgba(0, 210, 255, 0.42), 0 0 38px rgba(77, 125, 255, 0.3);
        transform: translateY(-1px);
      }
    }

    .showcase-arrow {
      position: absolute;
      top: 50%;
      transform: translateY(-50%);
      z-index: 2;
      width: 48px;
      height: 48px;
      border-radius: 50%;
      border: 0;
      font-size: 2rem;
      line-height: 1;
      cursor: pointer;
      color: #fff;
      background: rgba(255, 255, 255, 0.18);
      backdrop-filter: blur(5px);
    }

    .showcase-arrow.prev {
      left: 1.2rem;
    }

    .showcase-arrow.next {
      right: 1.2rem;
    }

    .showcase-dots {
      position: absolute;
      left: 50%;
      transform: translateX(-50%);
      bottom: 1.05rem;
      z-index: 2;
      display: flex;
      gap: 0.52rem;
    }

    .showcase-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      border: 0;
      cursor: pointer;
      background: rgba(255, 255, 255, 0.45);
    }

    .showcase-dot.active {
      background: #fff;
      transform: scale(1.15);
    }

    .section {
      padding: 3.3rem 0;
    }

    .section-head {
      margin-bottom: 1rem;
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .section-head h2 {
      margin: 0;
      font-size: clamp(1.45rem, 3vw, 2rem);
    }

    .section-head p {
      margin: 0;
      color: var(--sub);
    }

    .grid {
      display: grid;
      gap: 0.9rem;
    }

    .grid-4 {
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }

    .tile {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 1rem;
      box-shadow: 0 10px 26px rgba(0, 0, 0, 0.35);
      position: relative;
      overflow: hidden;
    }

    .tile::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, transparent, rgba(0, 210, 255, 0.14), transparent);
      transform: translateX(-100%);
      transition: transform 0.7s ease;
    }

    .tile:hover::after {
      transform: translateX(100%);
    }

    .tile h3 {
      margin: 0;
      font-size: 1.08rem;
    }

    .tile-thumb {
      margin: -1rem -1rem 0.85rem;
      border-bottom: 1px solid var(--line);
      background: #0c1830;
      aspect-ratio: 16 / 9;
      overflow: hidden;
    }

    .tile-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .tile-link {
      display: block;
      color: inherit;
      text-decoration: none;
    }

    .tile p {
      margin: 0.65rem 0 0;
      color: var(--sub);
      min-height: 3.1em;
    }

    .tile a,
    .tile-cta {
      display: inline-block;
      margin-top: 0.85rem;
      color: var(--brand);
      text-decoration: none;
      font-weight: 700;
    }

    .split {
      background: linear-gradient(180deg, #081021, #0a152b);
      border-top: 1px solid rgba(0, 210, 255, 0.16);
      border-bottom: 1px solid rgba(0, 210, 255, 0.16);
    }

    .watch-link {
      margin-top: 0.3rem;
      color: var(--brand);
      text-decoration: none;
      font-weight: 700;
    }

    footer {
      padding: 1.6rem 0 2.2rem;
    }

    .foot {
      padding-top: 1rem;
      display: block;
      color: #8aa0c8;
    }

    .footer-content {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      gap: 1rem;
      margin-bottom: 2rem;
    }

    .footer-section {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 1.2rem;
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
    }

    .footer-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, transparent, rgba(0, 210, 255, 0.14), transparent);
      transform: translateX(-100%);
      transition: transform 0.7s ease;
      pointer-events: none;
    }

    .footer-section:hover::before {
      transform: translateX(100%);
    }

    .footer-section h3 {
      margin: 0 0 1rem;
      font-size: 1.15rem;
      color: var(--brand);
    }

    .footer-section p {
      margin: 0.45rem 0;
      color: var(--sub);
    }

    .contact-info {
      margin-top: 1rem;
    }

    .contact-info p {
      margin: 0.55rem 0;
      display: flex;
      align-items: center;
      gap: 0.45rem;
      color: var(--sub);
    }

    .contact-info i {
      color: var(--brand);
    }

    .community-actions {
      margin-top: 1rem;
      display: flex;
      flex-direction: column;
      gap: 0.8rem;
    }

    .copyright {
      text-align: center;
      padding-top: 1.2rem;
      color: #8aa0c8;
      font-size: 0.9rem;
    }

    @media (max-width: 1024px) {
      .hero-grid {
        grid-template-columns: 1fr;
      }

      .grid-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .playlist {
        max-height: none;
      }

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

    @media (max-width: 680px) {
      .menu {
        display: none;
      }

      .grid-4 {
        grid-template-columns: 1fr;
      }

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

      .hero {
        padding-top: 3.1rem;
      }

      .showcase-arrow {
        display: none;
      }

      .showcase-content {
        min-height: min(72vh, 620px);
      }
    }

@media (prefers-reduced-motion: reduce) {
  .showcase-content h1,
  .showcase-content h2 {
    animation: none;
  }
}
  
      .product { flex: 1 1 0; min-width: 0; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35); display: flex; flex-direction: column; transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease; }
      .product:hover { transform: translateY(-4px); box-shadow: 0 18px 34px rgba(0, 0, 0, 0.45); border-color: rgba(0, 210, 255, 0.45); }
      .product img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block; }
      .product-body { padding: 1rem; color: var(--ink); }
      .badge { display: inline-block; font-size: 0.76rem; font-weight: 800; letter-spacing: 0.03em; padding: 0.28rem 0.55rem; border-radius: 999px; color: #041020; background: linear-gradient(90deg, var(--brand), #70e9ff); }
      .product h3 { margin: 0.7rem 0 0; font-size: 1.22rem; }
      .product p { margin: 0.55rem 0 0; color: var(--sub); }
      .specs { margin: 0.8rem 0 0; padding: 0; list-style: none; display: grid; gap: 0.35rem; color: #445270; font-size: 0.93rem; }
      .dl-grid { width: 100%; }
      .dl-grid::-webkit-scrollbar { display: none; }
      .dl-grid { scrollbar-width: none; -ms-overflow-style: none; }
      .dl-name { font-weight: 600; color: var(--ink); }
      .dl-meta { margin-top: 0.25rem; color: var(--sub); font-size: 0.88rem; line-height: 1.35; }
      .dl-table { width: 100%; border-collapse: collapse; background: var(--surface); table-layout: fixed; }
      .dl-table thead,
      .dl-table tbody tr { display: table; width: 100%; table-layout: fixed; }
      .dl-table tbody.dl-body-scroll { display: block; overflow-y: auto; max-height: 27rem; }
      .no-scrollbar::-webkit-scrollbar { display: none; }
      .no-scrollbar { scrollbar-width: none; -ms-overflow-style: none; }
      .btn-dl { display: inline-block; font-size: 0.85rem; padding: 0.45rem 0.9rem; border-radius: 8px; background: rgba(0, 210, 255, 0.14); color: var(--brand); text-decoration: none; font-weight: 700; transition: background 0.2s ease, color 0.2s ease; }
      .btn-dl:hover { background: var(--brand); color: #02101f; }