/* roulang page: index */
:root {
      --bg: #08080B;
      --bg-soft: #111116;
      --surface: #181820;
      --surface-2: #20202A;
      --primary: #FF2E63;
      --primary-2: #F43F5E;
      --accent: #22D3EE;
      --text: #F8FAFC;
      --muted: #A1A1AA;
      --line: rgba(255,255,255,.10);
      --line-strong: rgba(255,255,255,.18);
      --shadow: 0 24px 70px rgba(0,0,0,.42);
      --glow: 0 18px 46px rgba(255,46,99,.34);
      --radius: 12px;
      --container: 1220px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      color: var(--text);
      background:
        radial-gradient(circle at 18% 10%, rgba(255,46,99,.20), transparent 34%),
        radial-gradient(circle at 82% 18%, rgba(34,211,238,.16), transparent 30%),
        linear-gradient(180deg, #08080B 0%, #101014 46%, #08080B 100%);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      padding-bottom: 92px;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: -1;
      opacity: .26;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,.85), transparent 78%);
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease, box-shadow .2s ease;
    }

    button,
    input {
      font: inherit;
    }

    button {
      cursor: pointer;
      border: 0;
    }

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

    ::selection {
      background: rgba(255,46,99,.38);
      color: #fff;
    }

    ::-webkit-scrollbar {
      width: 10px;
      height: 10px;
    }

    ::-webkit-scrollbar-track {
      background: #0b0b0f;
    }

    ::-webkit-scrollbar-thumb {
      background: rgba(255,255,255,.18);
      border-radius: 999px;
    }

    .site-container {
      width: min(100% - 32px, var(--container));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(8,8,11,.86);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(18px);
      transition: box-shadow .2s ease, background .2s ease;
    }

    .site-header.is-scrolled {
      background: rgba(8,8,11,.94);
      box-shadow: 0 14px 34px rgba(0,0,0,.32);
    }

    .nav-wrap {
      height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 900;
      line-height: 1.15;
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background:
        linear-gradient(135deg, rgba(255,46,99,1), rgba(34,211,238,.92)),
        linear-gradient(180deg, #fff, #000);
      box-shadow: 0 12px 30px rgba(255,46,99,.34);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 10px;
      border-radius: 6px;
      border: 2px solid rgba(255,255,255,.78);
    }

    .brand-text {
      max-width: 360px;
      font-size: 15px;
      color: #fff;
      overflow-wrap: anywhere;
    }

    .desktop-nav {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-link {
      position: relative;
      padding: 10px 12px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      border-radius: 10px;
    }

    .nav-link:hover,
    .nav-link.active {
      color: #fff;
      background: rgba(255,255,255,.06);
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 5px;
      height: 2px;
      border-radius: 99px;
      background: var(--primary);
      box-shadow: 0 0 16px rgba(255,46,99,.85);
    }

    .nav-cta,
    .btn-primary,
    .btn-secondary,
    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      border-radius: 14px;
      font-weight: 800;
      white-space: nowrap;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
    }

    .nav-cta,
    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: var(--glow);
    }

    .nav-cta {
      min-height: 44px;
      padding: 0 18px;
      font-size: 14px;
    }

    .btn-primary,
    .btn-secondary,
    .btn-ghost {
      padding: 0 24px;
      font-size: 16px;
    }

    .btn-secondary {
      color: #fff;
      border: 1px solid var(--line-strong);
      background: rgba(255,255,255,.07);
    }

    .btn-ghost {
      color: var(--accent);
      border: 1px solid rgba(34,211,238,.35);
      background: rgba(34,211,238,.08);
    }

    .nav-cta:hover,
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 22px 58px rgba(255,46,99,.48);
    }

    .btn-secondary:hover,
    .btn-ghost:hover {
      transform: translateY(-2px);
      border-color: rgba(255,255,255,.30);
      background: rgba(255,255,255,.11);
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible {
      outline: 3px solid rgba(255,46,99,.58);
      outline-offset: 3px;
    }

    .menu-toggle {
      display: none;
      width: 46px;
      height: 46px;
      border-radius: 12px;
      background: rgba(255,255,255,.07);
      border: 1px solid var(--line);
      color: #fff;
      align-items: center;
      justify-content: center;
    }

    .menu-toggle span {
      width: 20px;
      height: 2px;
      background: currentColor;
      position: relative;
      border-radius: 99px;
    }

    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
      width: 20px;
      height: 2px;
      background: currentColor;
      border-radius: 99px;
    }

    .menu-toggle span::before {
      top: -7px;
    }

    .menu-toggle span::after {
      top: 7px;
    }

    .mobile-panel {
      display: none;
      border-top: 1px solid var(--line);
      padding: 14px 0 18px;
      background: rgba(8,8,11,.98);
    }

    .mobile-panel.open {
      display: block;
    }

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

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 28px;
    }

    .section-title {
      font-size: clamp(24px, 3vw, 38px);
      line-height: 1.18;
      font-weight: 900;
      color: #fff;
      overflow-wrap: anywhere;
    }

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

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      width: fit-content;
      padding: 7px 11px;
      border-radius: 999px;
      border: 1px solid var(--line);
      color: var(--accent);
      background: rgba(34,211,238,.08);
      font-size: 13px;
      font-weight: 800;
    }

    .hero {
      position: relative;
      min-height: 650px;
      padding: 54px 0 34px;
      overflow: hidden;
      border-bottom: 1px solid var(--line);
    }

    .hero-stage {
      position: relative;
      min-height: 560px;
      border-radius: 18px;
      overflow: hidden;
      background:
        linear-gradient(180deg, rgba(8,8,11,.18), rgba(8,8,11,.80)),
        radial-gradient(circle at 28% 32%, rgba(255,46,99,.35), transparent 34%),
        radial-gradient(circle at 78% 36%, rgba(34,211,238,.26), transparent 28%),
        #111116;
      border: 1px solid var(--line-strong);
      box-shadow: var(--shadow);
    }

    .hero-strips {
      position: absolute;
      inset: 0;
      display: grid;
      grid-template-columns: repeat(8, 1fr);
      gap: 10px;
      padding: 20px;
      opacity: .34;
      transform: rotate(-3deg) scale(1.08);
    }

    .strip {
      border-radius: 14px;
      background: linear-gradient(180deg, rgba(255,255,255,.13), rgba(255,255,255,.03));
      border: 1px solid rgba(255,255,255,.08);
      min-height: 180px;
    }

    .strip:nth-child(2n) {
      transform: translateY(42px);
      background: linear-gradient(180deg, rgba(255,46,99,.18), rgba(255,255,255,.03));
    }

    .strip:nth-child(3n) {
      transform: translateY(-28px);
      background: linear-gradient(180deg, rgba(34,211,238,.16), rgba(255,255,255,.03));
    }

    .hero-content {
      position: relative;
      z-index: 2;
      min-height: 560px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: clamp(22px, 4vw, 46px);
    }

    .hero-topbar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 10px;
      border: 1px solid var(--line);
      border-radius: 16px;
      background: rgba(8,8,11,.70);
      backdrop-filter: blur(18px);
    }

    .series-tabs {
      display: flex;
      gap: 8px;
      overflow-x: auto;
      padding-bottom: 2px;
      scrollbar-width: none;
    }

    .series-tabs::-webkit-scrollbar {
      display: none;
    }

    .series-tabs span {
      flex: 0 0 auto;
      padding: 9px 12px;
      border-radius: 10px;
      color: #D4D4D8;
      background: rgba(255,255,255,.07);
      font-size: 13px;
      font-weight: 800;
    }

    .series-tabs span.active {
      color: #fff;
      background: rgba(255,46,99,.95);
      box-shadow: 0 0 24px rgba(255,46,99,.35);
    }

    .hero-copy {
      width: min(780px, 100%);
      padding-top: 70px;
    }

    .hero h1 {
      margin: 0;
      max-width: 980px;
      font-size: clamp(34px, 6vw, 64px);
      line-height: 1.08;
      font-weight: 900;
      color: #fff;
      overflow-wrap: anywhere;
    }

    .hero-lead {
      margin-top: 20px;
      max-width: 760px;
      color: #E4E4E7;
      font-size: clamp(15px, 2vw, 18px);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 28px;
    }

    .hero-data {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin-top: 30px;
      max-width: 760px;
    }

    .data-chip {
      padding: 14px;
      border-radius: 14px;
      border: 1px solid var(--line);
      background: rgba(8,8,11,.64);
      min-width: 0;
    }

    .data-chip strong {
      display: block;
      color: #fff;
      font-size: 21px;
      line-height: 1.1;
    }

    .data-chip span {
      display: block;
      margin-top: 5px;
      color: var(--muted);
      font-size: 13px;
    }

    .hero-matrix {
      align-self: stretch;
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 14px;
      margin-top: 36px;
    }

    .matrix-panel {
      border-radius: 16px;
      border: 1px solid var(--line);
      background: rgba(12,12,16,.80);
      backdrop-filter: blur(16px);
      padding: 18px;
      min-width: 0;
    }

    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 10px;
      margin-top: 14px;
    }

    .matrix-item {
      min-height: 82px;
      border-radius: 12px;
      border: 1px solid rgba(255,255,255,.10);
      background: linear-gradient(145deg, rgba(255,255,255,.10), rgba(255,255,255,.03));
      padding: 12px;
    }

    .matrix-item b {
      display: block;
      color: #fff;
      font-size: 14px;
    }

    .matrix-item small {
      display: block;
      margin-top: 7px;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.4;
    }

    .check-list {
      display: grid;
      gap: 10px;
      margin-top: 14px;
    }

    .check-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 12px;
      border-radius: 12px;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.08);
    }

    .status-dot {
      width: 9px;
      height: 9px;
      border-radius: 99px;
      background: var(--accent);
      box-shadow: 0 0 14px rgba(34,211,238,.95);
      flex: 0 0 auto;
    }

    .feature-card,
    .content-card,
    .proof-card,
    .price-card,
    .faq-item,
    .story-card,
    .news-list,
    .side-card {
      border: 1px solid var(--line);
      background: linear-gradient(180deg, rgba(255,255,255,.075), rgba(255,255,255,.035));
      border-radius: var(--radius);
      box-shadow: 0 18px 46px rgba(0,0,0,.22);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
      min-width: 0;
    }

    .feature-card:hover,
    .content-card:hover,
    .proof-card:hover,
    .price-card:hover,
    .story-card:hover {
      transform: translateY(-3px);
      border-color: rgba(255,46,99,.42);
      box-shadow: 0 22px 58px rgba(0,0,0,.36);
    }

    .feature-card {
      padding: 22px;
      position: relative;
      overflow: hidden;
    }

    .feature-card::before {
      content: "";
      position: absolute;
      inset: 0 auto auto 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
    }

    .mini-bar {
      height: 7px;
      border-radius: 99px;
      overflow: hidden;
      background: rgba(255,255,255,.08);
      margin-top: 18px;
    }

    .mini-bar span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--primary), var(--accent));
    }

    .rail {
      display: flex;
      gap: 14px;
      overflow-x: auto;
      padding: 4px 2px 12px;
      scroll-snap-type: x mandatory;
    }

    .rail-card {
      flex: 0 0 260px;
      scroll-snap-align: start;
      border-radius: 14px;
      border: 1px solid var(--line);
      background:
        linear-gradient(180deg, rgba(255,255,255,.11), rgba(255,255,255,.035)),
        #131318;
      padding: 16px;
      min-height: 168px;
    }

    .rail-visual {
      height: 74px;
      border-radius: 12px;
      background:
        linear-gradient(90deg, rgba(255,46,99,.30), rgba(34,211,238,.20)),
        repeating-linear-gradient(90deg, rgba(255,255,255,.10) 0 24px, transparent 24px 34px);
      border: 1px solid rgba(255,255,255,.10);
      margin-bottom: 14px;
    }

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

    .search-box {
      border-radius: 16px;
      border: 1px solid var(--line);
      background: rgba(8,8,11,.66);
      padding: 18px;
    }

    .search-row {
      display: flex;
      gap: 10px;
      padding: 8px;
      border-radius: 13px;
      border: 1px solid rgba(255,255,255,.13);
      background: rgba(255,255,255,.06);
    }

    .search-row input {
      min-width: 0;
      flex: 1;
      border: 0;
      outline: 0;
      color: #fff;
      background: transparent;
      padding: 0 8px;
    }

    .search-row input::placeholder {
      color: rgba(255,255,255,.48);
    }

    .chip-wrap {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
      margin-top: 16px;
    }

    .chip {
      display: inline-flex;
      align-items: center;
      min-height: 34px;
      padding: 0 11px;
      border-radius: 999px;
      border: 1px solid rgba(255,255,255,.12);
      background: rgba(255,255,255,.06);
      color: #D4D4D8;
      font-size: 13px;
      font-weight: 700;
    }

    .chip.hot {
      color: #fff;
      border-color: rgba(255,46,99,.45);
      background: rgba(255,46,99,.16);
    }

    .step-panel {
      display: grid;
      gap: 12px;
    }

    .step-row {
      display: grid;
      grid-template-columns: 42px 1fr auto;
      gap: 14px;
      align-items: center;
      padding: 16px;
      border-radius: 14px;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.09);
    }

    .step-num {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      background: rgba(255,46,99,.16);
      color: #fff;
      font-weight: 900;
    }

    .content-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 18px;
    }

    .content-card {
      padding: 18px;
    }

    .content-card .thumb {
      height: 112px;
      border-radius: 12px;
      margin-bottom: 15px;
      background:
        radial-gradient(circle at 20% 20%, rgba(255,46,99,.36), transparent 28%),
        radial-gradient(circle at 78% 32%, rgba(34,211,238,.26), transparent 30%),
        linear-gradient(135deg, rgba(255,255,255,.10), rgba(255,255,255,.035));
      border: 1px solid rgba(255,255,255,.10);
    }

    .news-layout {
      display: grid;
      grid-template-columns: 1.4fr .6fr;
      gap: 20px;
      align-items: start;
    }

    .news-list {
      padding: 10px;
    }

    .news-item {
      display: grid;
      grid-template-columns: 110px 1fr auto;
      gap: 14px;
      align-items: center;
      padding: 16px;
      border-radius: 12px;
      border-bottom: 1px solid rgba(255,255,255,.08);
    }

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

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

    .proof-strip {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
      padding: 16px;
      border-radius: 16px;
      background: rgba(255,255,255,.06);
      border: 1px solid var(--line);
    }

    .proof-card {
      padding: 20px;
    }

    .price-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
    }

    .price-card {
      padding: 22px;
      position: relative;
    }

    .price-card.featured {
      border-color: rgba(255,46,99,.48);
      background:
        linear-gradient(180deg, rgba(255,46,99,.16), rgba(255,255,255,.04)),
        #15151b;
    }

    .price-value {
      font-size: 34px;
      line-height: 1.1;
      font-weight: 900;
      color: #fff;
      margin: 14px 0;
    }

    .price-list {
      display: grid;
      gap: 10px;
      color: #D4D4D8;
      font-size: 14px;
      margin: 18px 0;
    }

    .story-band {
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
      background:
        linear-gradient(90deg, rgba(255,46,99,.14), transparent 45%),
        rgba(255,255,255,.035);
    }

    .story-grid {
      display: grid;
      grid-template-columns: .85fr 1.15fr;
      gap: 24px;
      align-items: center;
    }

    .story-card {
      padding: 22px;
    }

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

    .faq-question {
      width: 100%;
      min-height: 56px;
      padding: 16px 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      color: #fff;
      background: transparent;
      text-align: left;
      font-weight: 800;
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: var(--muted);
      font-size: 15px;
    }

    .faq-item.open {
      border-color: rgba(255,46,99,.46);
    }

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

    .faq-icon {
      color: var(--primary);
      font-size: 22px;
      line-height: 1;
      flex: 0 0 auto;
    }

    .cta-panel {
      border-radius: 18px;
      border: 1px solid rgba(255,46,99,.36);
      background:
        radial-gradient(circle at 18% 20%, rgba(255,46,99,.32), transparent 28%),
        radial-gradient(circle at 82% 50%, rgba(34,211,238,.18), transparent 30%),
        #121217;
      box-shadow: var(--shadow);
      padding: clamp(24px, 4vw, 42px);
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
    }

    .site-footer {
      border-top: 1px solid var(--line);
      background: #07070A;
      padding: 54px 0 32px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .6fr .6fr;
      gap: 28px;
    }

    .footer-links {
      display: grid;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
    }

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

    .fixed-cta {
      position: fixed;
      z-index: 70;
      left: 0;
      right: 0;
      bottom: 0;
      border-top: 1px solid rgba(255,46,99,.32);
      background: rgba(8,8,11,.94);
      backdrop-filter: blur(18px);
      box-shadow: 0 -18px 54px rgba(255,46,99,.14);
    }

    .fixed-inner {
      min-height: 74px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .fixed-points {
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      color: #D4D4D8;
      font-size: 13px;
      font-weight: 700;
    }

    .fixed-points span {
      padding: 6px 9px;
      border-radius: 999px;
      background: rgba(255,255,255,.07);
      border: 1px solid rgba(255,255,255,.09);
    }

    @media (max-width: 1024px) {
      .desktop-nav,
      .nav-cta {
        display: none;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .brand-text {
        max-width: 260px;
      }

      .hero-matrix,
      .recommend-layout,
      .news-layout,
      .story-grid,
      .cta-panel {
        grid-template-columns: 1fr;
      }

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

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

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

    @media (max-width: 768px) {
      body {
        padding-bottom: 78px;
      }

      .site-container {
        width: min(100% - 24px, var(--container));
      }

      .nav-wrap {
        height: 66px;
      }

      .brand-mark {
        width: 34px;
        height: 34px;
      }

      .brand-text {
        max-width: 210px;
        font-size: 13px;
      }

      .section-pad {
        padding: 52px 0;
      }

      .section-head {
        display: block;
      }

      .section-desc {
        margin-top: 10px;
        font-size: 15px;
      }

      .hero {
        padding-top: 22px;
        min-height: auto;
      }

      .hero-stage,
      .hero-content {
        min-height: auto;
      }

      .hero-content {
        padding: 16px;
      }

      .hero-topbar {
        align-items: stretch;
        flex-direction: column;
      }

      .hero-copy {
        padding-top: 44px;
      }

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

      .btn-primary,
      .btn-secondary,
      .btn-ghost {
        width: 100%;
        min-height: 54px;
      }

      .hero-data,
      .matrix-grid,
      .content-grid,
      .proof-strip,
      .price-grid {
        grid-template-columns: 1fr;
      }

      .step-row {
        grid-template-columns: 42px 1fr;
      }

      .step-row .chip {
        grid-column: 1 / -1;
        width: fit-content;
      }

      .news-item {
        grid-template-columns: 1fr;
        gap: 8px;
      }

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

      .fixed-inner {
        min-height: 68px;
      }

      .fixed-points {
        display: none;
      }

      .fixed-inner .btn-primary {
        width: auto;
        min-height: 46px;
        padding-inline: 16px;
        font-size: 14px;
      }
    }

    @media (max-width: 520px) {
      .brand-text {
        max-width: 176px;
      }

      .hero h1 {
        font-size: 34px;
      }

      .hero-lead {
        font-size: 15px;
      }

      .series-tabs span {
        font-size: 12px;
      }

      .rail-card {
        flex-basis: 232px;
      }

      .fixed-inner > div:first-child {
        min-width: 0;
      }

      .fixed-inner strong {
        font-size: 13px;
        overflow-wrap: anywhere;
      }
    }

/* roulang page: category1 */
:root {
      --bg: #08080b;
      --bg-soft: #111116;
      --surface: #181820;
      --surface-2: #20202a;
      --primary: #ff2e63;
      --primary-2: #f43f5e;
      --accent: #22d3ee;
      --accent-2: #38bdf8;
      --text: #f8fafc;
      --muted: #a1a1aa;
      --muted-2: #71717a;
      --line: rgba(255,255,255,.1);
      --line-strong: rgba(255,255,255,.18);
      --shadow: 0 24px 80px rgba(0,0,0,.42);
      --glow: 0 18px 44px rgba(255,46,99,.28);
      --radius: 12px;
      --header-h: 74px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      color: var(--text);
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
      line-height: 1.65;
      background:
        radial-gradient(circle at 12% 8%, rgba(255,46,99,.18), transparent 28%),
        radial-gradient(circle at 82% 16%, rgba(34,211,238,.14), transparent 30%),
        linear-gradient(180deg, #08080b 0%, #111116 46%, #08080b 100%);
      padding-bottom: 96px;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      z-index: -2;
      opacity: .22;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
      background-size: 42px 42px;
      mask-image: linear-gradient(to bottom, black 0%, transparent 82%);
    }

    body::after {
      content: "";
      position: fixed;
      inset: 0;
      z-index: -1;
      opacity: .2;
      pointer-events: none;
      background-image: radial-gradient(rgba(255,255,255,.55) .5px, transparent .5px);
      background-size: 4px 4px;
    }

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

    button,
    input {
      font: inherit;
    }

    button {
      cursor: pointer;
    }

    :focus-visible {
      outline: 3px solid rgba(34,211,238,.75);
      outline-offset: 3px;
      border-radius: 10px;
    }

    ::selection {
      background: rgba(255,46,99,.36);
      color: white;
    }

    ::-webkit-scrollbar {
      width: 10px;
      height: 10px;
    }

    ::-webkit-scrollbar-track {
      background: #0d0d12;
    }

    ::-webkit-scrollbar-thumb {
      background: rgba(255,255,255,.18);
      border-radius: 999px;
    }

    .site-container {
      width: min(100% - 32px, 1220px);
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 80;
      background: rgba(8,8,11,.88);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(18px);
      transition: box-shadow .25s ease, background .25s ease;
    }

    .site-header.is-scrolled {
      background: rgba(8,8,11,.96);
      box-shadow: 0 14px 42px rgba(0,0,0,.32);
    }

    .nav-wrap {
      min-height: var(--header-h);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 900;
      color: var(--text);
    }

    .brand-mark {
      width: 34px;
      height: 34px;
      flex: 0 0 auto;
      border-radius: 11px;
      background:
        linear-gradient(135deg, var(--primary) 0%, #7c3aed 52%, var(--accent) 100%);
      box-shadow: 0 0 0 1px rgba(255,255,255,.18), 0 12px 30px rgba(255,46,99,.24);
      position: relative;
      overflow: hidden;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 8px 6px;
      border-top: 2px solid rgba(255,255,255,.9);
      border-bottom: 2px solid rgba(255,255,255,.68);
      transform: skewY(-12deg);
    }

    .brand-text {
      display: block;
      max-width: 360px;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
      font-size: 15px;
      letter-spacing: 0;
    }

    .desktop-nav {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 6px;
      flex: 1;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 0 14px;
      color: #d4d4d8;
      font-size: 14px;
      font-weight: 750;
      border-radius: 10px;
      transition: color .2s ease, background .2s ease;
    }

    .nav-link:hover {
      color: white;
      background: rgba(255,255,255,.07);
    }

    .nav-link.active {
      color: white;
      background: rgba(255,46,99,.12);
    }

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 5px;
      height: 2px;
      border-radius: 99px;
      background: linear-gradient(90deg, var(--primary), var(--accent));
      box-shadow: 0 0 18px rgba(255,46,99,.45);
    }

    .nav-cta,
    .btn-primary,
    .btn-secondary,
    .btn-ghost {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-width: 0;
      border-radius: 14px;
      font-weight: 900;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
      white-space: nowrap;
    }

    .nav-cta,
    .btn-primary {
      min-height: 48px;
      padding: 0 20px;
      color: white;
      background: linear-gradient(135deg, var(--primary), #db2777);
      box-shadow: var(--glow);
      border: 1px solid rgba(255,255,255,.12);
    }

    .nav-cta:hover,
    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 22px 54px rgba(255,46,99,.36);
    }

    .btn-secondary {
      min-height: 52px;
      padding: 0 20px;
      color: var(--text);
      background: rgba(255,255,255,.07);
      border: 1px solid var(--line-strong);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      border-color: rgba(34,211,238,.48);
      background: rgba(34,211,238,.1);
    }

    .btn-ghost {
      min-height: 42px;
      padding: 0 14px;
      color: #d4d4d8;
      background: rgba(255,255,255,.05);
      border: 1px solid var(--line);
    }

    .btn-ghost:hover {
      color: white;
      border-color: rgba(255,46,99,.42);
      background: rgba(255,46,99,.1);
    }

    .menu-toggle {
      display: none;
      width: 46px;
      height: 46px;
      border: 1px solid var(--line);
      border-radius: 12px;
      background: rgba(255,255,255,.06);
      color: white;
      align-items: center;
      justify-content: center;
    }

    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      display: block;
      width: 20px;
      height: 2px;
      border-radius: 99px;
      background: white;
      transition: transform .2s ease, opacity .2s ease;
      content: "";
      position: relative;
    }

    .menu-toggle span::before {
      position: absolute;
      top: -7px;
    }

    .menu-toggle span::after {
      position: absolute;
      top: 7px;
    }

    .menu-toggle.is-open span {
      background: transparent;
    }

    .menu-toggle.is-open span::before {
      transform: translateY(7px) rotate(45deg);
    }

    .menu-toggle.is-open span::after {
      transform: translateY(-7px) rotate(-45deg);
    }

    .mobile-panel {
      display: none;
      padding: 0 0 18px;
    }

    .page-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      color: #cffafe;
      background: rgba(34,211,238,.08);
      border: 1px solid rgba(34,211,238,.2);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 850;
    }

    .page-kicker::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: var(--accent);
      box-shadow: 0 0 18px rgba(34,211,238,.75);
    }

    .section {
      padding: 76px 0;
    }

    .section-tight {
      padding: 48px 0;
    }

    .title-panel {
      position: relative;
      padding: 58px 0 34px;
      overflow: hidden;
      border-bottom: 1px solid var(--line);
    }

    .title-panel::before {
      content: "";
      position: absolute;
      inset: 16px 0 auto auto;
      width: min(520px, 60vw);
      height: 240px;
      background:
        linear-gradient(90deg, transparent, rgba(255,46,99,.16), transparent),
        repeating-linear-gradient(90deg, rgba(255,255,255,.1) 0 1px, transparent 1px 44px);
      filter: blur(.2px);
      opacity: .7;
      transform: skewY(-8deg);
      pointer-events: none;
    }

    .headline {
      font-size: clamp(34px, 5vw, 56px);
      line-height: 1.08;
      font-weight: 950;
      letter-spacing: 0;
      max-width: 900px;
    }

    .lead {
      color: #c8c8d0;
      font-size: 16px;
      max-width: 760px;
    }

    .launch-panel {
      border: 1px solid var(--line);
      background: linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.035));
      box-shadow: var(--shadow);
      border-radius: 16px;
      padding: 18px;
      position: relative;
      overflow: hidden;
    }

    .launch-panel::after {
      content: "";
      position: absolute;
      inset: auto -30px -40px auto;
      width: 180px;
      height: 180px;
      border-radius: 999px;
      background: rgba(255,46,99,.16);
      filter: blur(24px);
    }

    .count-ring {
      width: 112px;
      height: 112px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      background:
        conic-gradient(var(--primary) 0 72%, rgba(255,255,255,.12) 72% 100%);
      box-shadow: 0 0 0 1px rgba(255,255,255,.14), 0 18px 42px rgba(255,46,99,.24);
      position: relative;
    }

    .count-ring::before {
      content: "";
      position: absolute;
      inset: 10px;
      border-radius: inherit;
      background: #111116;
      border: 1px solid rgba(255,255,255,.08);
    }

    .count-ring strong,
    .count-ring span {
      position: relative;
      z-index: 1;
      display: block;
      text-align: center;
    }

    .count-ring strong {
      font-size: 26px;
      line-height: 1;
      font-weight: 950;
    }

    .count-ring span {
      color: var(--muted);
      font-size: 12px;
      margin-top: 3px;
    }

    .feature-dot {
      display: flex;
      align-items: center;
      gap: 9px;
      color: #d4d4d8;
      font-size: 14px;
      font-weight: 750;
    }

    .feature-dot i {
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--accent);
      box-shadow: 0 0 16px rgba(34,211,238,.65);
      flex: 0 0 auto;
    }

    .filter-shell {
      margin-top: 28px;
      border: 1px solid var(--line);
      background: rgba(255,255,255,.055);
      border-radius: 16px;
      padding: 18px;
      box-shadow: 0 18px 60px rgba(0,0,0,.26);
    }

    .search-box {
      display: flex;
      align-items: center;
      gap: 12px;
      min-height: 56px;
      padding: 0 12px 0 18px;
      border: 1px solid var(--line-strong);
      border-radius: 14px;
      background: rgba(8,8,11,.72);
      transition: border-color .2s ease, box-shadow .2s ease;
    }

    .search-box:focus-within {
      border-color: rgba(34,211,238,.58);
      box-shadow: 0 0 0 4px rgba(34,211,238,.1);
    }

    .search-box input {
      width: 100%;
      min-width: 0;
      color: white;
      background: transparent;
      border: 0;
      outline: 0;
      font-size: 15px;
    }

    .search-box input::placeholder {
      color: #71717a;
    }

    .chip-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .chip {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      min-height: 36px;
      padding: 0 13px;
      color: #d4d4d8;
      background: rgba(255,255,255,.055);
      border: 1px solid var(--line);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 800;
      transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease;
      white-space: nowrap;
    }

    .chip:hover,
    .chip.active {
      color: white;
      border-color: rgba(255,46,99,.5);
      background: rgba(255,46,99,.12);
      transform: translateY(-1px);
    }

    .stat-strip {
      display: grid;
      grid-template-columns: repeat(4, minmax(0,1fr));
      gap: 12px;
      margin-top: 18px;
    }

    .stat-box {
      min-width: 0;
      padding: 14px;
      border: 1px solid var(--line);
      border-radius: 12px;
      background: rgba(255,255,255,.05);
    }

    .stat-box strong {
      display: block;
      font-size: 20px;
      line-height: 1;
      font-weight: 950;
      color: white;
    }

    .stat-box span {
      display: block;
      margin-top: 7px;
      color: var(--muted);
      font-size: 12px;
      font-weight: 750;
    }

    .entry-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap: 18px;
    }

    .entry-card {
      min-width: 0;
      border: 1px solid var(--line);
      border-radius: 14px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.075), rgba(255,255,255,.035));
      box-shadow: 0 16px 48px rgba(0,0,0,.26);
      overflow: hidden;
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }

    .entry-card:hover {
      transform: translateY(-4px);
      border-color: rgba(255,46,99,.45);
      box-shadow: 0 24px 70px rgba(0,0,0,.38);
    }

    .entry-card-top {
      height: 96px;
      position: relative;
      background:
        linear-gradient(135deg, rgba(255,46,99,.34), rgba(124,58,237,.18) 45%, rgba(34,211,238,.18)),
        repeating-linear-gradient(90deg, rgba(255,255,255,.12) 0 1px, transparent 1px 24px);
      overflow: hidden;
    }

    .entry-card-top::before,
    .entry-card-top::after {
      content: "";
      position: absolute;
      height: 20px;
      border-radius: 5px;
      background: rgba(8,8,11,.48);
      border: 1px solid rgba(255,255,255,.1);
    }

    .entry-card-top::before {
      left: 16px;
      right: 58px;
      top: 24px;
    }

    .entry-card-top::after {
      left: 34px;
      right: 24px;
      bottom: 20px;
    }

    .entry-card-body {
      padding: 18px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 0 10px;
      border-radius: 999px;
      color: #cffafe;
      background: rgba(34,211,238,.1);
      border: 1px solid rgba(34,211,238,.22);
      font-size: 12px;
      font-weight: 850;
      white-space: nowrap;
    }

    .badge.hot {
      color: #ffe4e6;
      background: rgba(255,46,99,.12);
      border-color: rgba(255,46,99,.28);
    }

    .card-title {
      margin-top: 13px;
      color: white;
      font-size: 18px;
      line-height: 1.3;
      font-weight: 950;
      overflow-wrap: anywhere;
    }

    .card-text {
      margin-top: 9px;
      color: #b8b8c2;
      font-size: 14px;
    }

    .status-line {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      margin-top: 16px;
      padding-top: 14px;
      border-top: 1px solid var(--line);
      color: var(--muted);
      font-size: 12px;
      font-weight: 760;
    }

    .status-ok {
      color: #67e8f9;
    }

    .section-heading {
      max-width: 760px;
    }

    .section-heading h2 {
      font-size: clamp(26px, 3vw, 38px);
      line-height: 1.16;
      font-weight: 950;
      letter-spacing: 0;
    }

    .section-heading p {
      margin-top: 12px;
      color: #b8b8c2;
      font-size: 16px;
    }

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

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

    .step-item {
      display: grid;
      grid-template-columns: 40px 1fr;
      gap: 14px;
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: rgba(255,255,255,.05);
      transition: border-color .2s ease, background .2s ease;
    }

    .step-item:hover {
      border-color: rgba(34,211,238,.35);
      background: rgba(34,211,238,.07);
    }

    .step-num {
      width: 40px;
      height: 40px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      color: white;
      font-weight: 950;
      background: rgba(255,46,99,.16);
      border: 1px solid rgba(255,46,99,.32);
    }

    .mockup {
      border: 1px solid var(--line);
      border-radius: 16px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.075), rgba(255,255,255,.035)),
        #111116;
      box-shadow: var(--shadow);
      padding: 18px;
      min-width: 0;
    }

    .mock-row {
      display: grid;
      grid-template-columns: 120px 1fr 120px;
      align-items: center;
      gap: 12px;
      padding: 14px 0;
      border-bottom: 1px solid var(--line);
    }

    .mock-row:last-child {
      border-bottom: 0;
    }

    .mock-label {
      display: inline-flex;
      justify-content: center;
      padding: 8px 10px;
      border-radius: 10px;
      color: #ffe4e6;
      background: rgba(255,46,99,.12);
      border: 1px solid rgba(255,46,99,.26);
      font-size: 13px;
      font-weight: 900;
    }

    .mock-bar {
      height: 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.09);
      overflow: hidden;
    }

    .mock-bar span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--primary), var(--accent));
    }

    .trust-band {
      display: grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap: 16px;
    }

    .trust-card {
      min-width: 0;
      padding: 20px;
      border-radius: 14px;
      border: 1px solid var(--line);
      background: rgba(255,255,255,.055);
    }

    .trust-card strong {
      display: block;
      color: white;
      font-size: 18px;
      font-weight: 950;
    }

    .trust-card p {
      margin-top: 8px;
      color: #b8b8c2;
      font-size: 14px;
    }

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

    .faq-item {
      border: 1px solid var(--line);
      border-radius: 14px;
      background: rgba(255,255,255,.045);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      min-height: 56px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 16px 18px;
      color: white;
      background: transparent;
      border: 0;
      text-align: left;
      font-weight: 900;
    }

    .faq-question span:first-child {
      min-width: 0;
      overflow-wrap: anywhere;
    }

    .faq-question span:last-child {
      width: 26px;
      height: 26px;
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      border-radius: 8px;
      background: rgba(255,255,255,.08);
      color: var(--accent);
      transition: transform .2s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: #b8b8c2;
      font-size: 14px;
    }

    .faq-item.is-open {
      border-color: rgba(255,46,99,.38);
      background: rgba(255,46,99,.07);
    }

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

    .faq-item.is-open .faq-question span:last-child {
      transform: rotate(45deg);
    }

    .cta-panel {
      border: 1px solid rgba(255,46,99,.28);
      border-radius: 18px;
      background:
        radial-gradient(circle at 20% 20%, rgba(255,46,99,.2), transparent 34%),
        radial-gradient(circle at 82% 38%, rgba(34,211,238,.16), transparent 32%),
        linear-gradient(135deg, rgba(255,255,255,.08), rgba(255,255,255,.035));
      box-shadow: var(--shadow);
      padding: 28px;
    }

    .site-footer {
      padding: 58px 0 34px;
      background: #08080b;
      border-top: 1px solid var(--line);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr .7fr .7fr;
      gap: 34px;
    }

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

    .footer-links a {
      color: #a1a1aa;
      font-weight: 700;
      transition: color .2s ease, transform .2s ease;
    }

    .footer-links a:hover {
      color: white;
      transform: translateX(2px);
    }

    .fixed-cta {
      position: fixed;
      left: 0;
      right: 0;
      bottom: 0;
      z-index: 70;
      background: rgba(8,8,11,.96);
      border-top: 1px solid rgba(255,46,99,.28);
      box-shadow: 0 -18px 60px rgba(0,0,0,.42), 0 -6px 30px rgba(255,46,99,.1);
      backdrop-filter: blur(16px);
    }

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

    .fixed-points {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .fixed-point {
      color: #d4d4d8;
      font-size: 13px;
      font-weight: 800;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(255,255,255,.06);
      border: 1px solid var(--line);
    }

    @media (max-width: 1024px) {
      .desktop-nav,
      .nav-cta {
        display: none;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .mobile-panel.is-open {
        display: block;
      }

      .brand-text {
        max-width: 58vw;
      }

      .stat-strip,
      .trust-band {
        grid-template-columns: repeat(2, minmax(0,1fr));
      }

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

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

    @media (max-width: 768px) {
      body {
        padding-bottom: 86px;
      }

      .site-container {
        width: min(100% - 24px, 1220px);
      }

      .title-panel {
        padding: 38px 0 26px;
      }

      .lead {
        font-size: 15px;
      }

      .launch-panel {
        margin-top: 22px;
      }

      .filter-shell {
        padding: 14px;
      }

      .chip-row {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 4px;
      }

      .entry-grid,
      .trust-band,
      .stat-strip {
        grid-template-columns: 1fr;
      }

      .mock-row {
        grid-template-columns: 1fr;
        align-items: start;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .fixed-cta-inner {
        min-height: 70px;
        gap: 12px;
      }

      .fixed-points {
        display: none;
      }

      .fixed-cta .btn-primary {
        min-height: 46px;
        padding: 0 14px;
        font-size: 14px;
      }
    }

    @media (max-width: 520px) {
      .brand-mark {
        width: 30px;
        height: 30px;
        border-radius: 10px;
      }

      .brand-text {
        max-width: 68vw;
        font-size: 13px;
      }

      .headline {
        font-size: 34px;
        overflow-wrap: anywhere;
      }

      .search-box {
        flex-wrap: wrap;
        height: auto;
        padding: 14px;
      }

      .search-box .btn-primary {
        width: 100%;
        min-height: 48px;
      }

      .cta-panel {
        padding: 20px;
      }

      .fixed-cta-title {
        max-width: 52vw;
      }
    }

/* roulang page: category2 */
:root{
      --bg:#08080B;
      --surface:#111116;
      --surface-2:#181820;
      --text:#F8FAFC;
      --muted:#A1A1AA;
      --line:rgba(255,255,255,.10);
      --line-strong:rgba(255,255,255,.18);
      --primary:#FF2E63;
      --primary-strong:#F43F5E;
      --accent:#22D3EE;
      --accent-2:#38BDF8;
      --shadow:0 18px 48px rgba(0,0,0,.40);
      --shadow-soft:0 10px 28px rgba(0,0,0,.26);
      --radius:14px;
      --radius-sm:12px;
      --container:1280px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      min-height:100vh;
      color:var(--text);
      background:
        linear-gradient(180deg, rgba(255,255,255,.03), transparent 18%),
        linear-gradient(115deg, rgba(255,46,99,.06), transparent 32%),
        linear-gradient(300deg, rgba(34,211,238,.05), transparent 42%),
        linear-gradient(180deg, #08080B 0%, #09090D 40%, #0B0B10 100%);
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      line-height:1.6;
      overflow-x:hidden;
      padding-bottom:96px;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background:
        repeating-linear-gradient(90deg, rgba(255,255,255,.028) 0 1px, transparent 1px 64px),
        repeating-linear-gradient(180deg, rgba(255,255,255,.016) 0 1px, transparent 1px 64px);
      opacity:.22;
      mask-image:linear-gradient(180deg, rgba(0,0,0,.80), rgba(0,0,0,.20) 70%, rgba(0,0,0,.55));
    }
    ::selection{background:rgba(255,46,99,.35);color:#fff}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer}
    .site-container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
      position:relative;
      z-index:1;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:60;
      border-bottom:1px solid transparent;
      background:rgba(8,8,11,.74);
      backdrop-filter:blur(18px);
      transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }
    .site-header.is-scrolled{
      border-color:var(--line);
      box-shadow:0 14px 32px rgba(0,0,0,.18);
      background:rgba(8,8,11,.92);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      min-width:0;
      color:var(--text);
      font-weight:900;
      letter-spacing:0;
    }
    .brand-mark{
      width:14px;
      height:14px;
      border-radius:999px;
      background:linear-gradient(135deg, var(--primary), var(--accent));
      box-shadow:0 0 0 4px rgba(255,46,99,.14), 0 0 24px rgba(255,46,99,.28);
      flex:none;
    }
    .brand-text{
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      max-width:260px;
      font-size:15px;
    }
    .desktop-nav{
      display:flex;
      align-items:center;
      gap:8px;
      min-width:0;
    }
    .nav-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:42px;
      padding:10px 14px;
      border-radius:12px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:transform .15s ease, color .15s ease, background .15s ease, box-shadow .15s ease;
      min-width:0;
    }
    .nav-link:hover,
    .nav-link:focus-visible{
      color:var(--text);
      background:rgba(255,255,255,.05);
      outline:none;
      transform:translateY(-1px);
    }
    .nav-link.active{
      color:var(--text);
      background:rgba(255,46,99,.10);
      box-shadow:inset 0 -2px 0 rgba(255,46,99,.9);
    }
    .nav-cta,
    .btn-primary,
    .btn-secondary{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-height:48px;
      padding:0 18px;
      border-radius:13px;
      font-weight:800;
      font-size:15px;
      transition:transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
      white-space:nowrap;
    }
    .nav-cta,
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--primary), var(--primary-strong));
      box-shadow:0 10px 24px rgba(255,46,99,.28);
    }
    .nav-cta:hover,
    .btn-primary:hover,
    .nav-cta:focus-visible,
    .btn-primary:focus-visible{
      transform:translateY(-1px);
      box-shadow:0 14px 30px rgba(255,46,99,.38);
      outline:none;
    }
    .btn-secondary{
      color:var(--text);
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
    }
    .btn-secondary:hover,
    .btn-secondary:focus-visible{
      border-color:rgba(34,211,238,.45);
      background:rgba(34,211,238,.08);
      transform:translateY(-1px);
      outline:none;
    }
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      align-items:center;
      justify-content:center;
      border:1px solid var(--line);
      border-radius:12px;
      background:rgba(255,255,255,.03);
      color:var(--text);
    }
    .menu-toggle span{
      position:relative;
      display:block;
      width:18px;
      height:2px;
      border-radius:999px;
      background:currentColor;
    }
    .menu-toggle span::before,
    .menu-toggle span::after{
      content:"";
      position:absolute;
      left:0;
      width:18px;
      height:2px;
      border-radius:999px;
      background:currentColor;
      transition:transform .18s ease, top .18s ease, opacity .18s ease;
    }
    .menu-toggle span::before{top:-6px}
    .menu-toggle span::after{top:6px}
    .menu-toggle[aria-expanded="true"] span{background:transparent}
    .menu-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
    .menu-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
    .mobile-panel{
      display:none;
      padding:0 0 16px;
    }
    .mobile-panel .nav-link,
    .mobile-panel .btn-primary{
      width:100%;
      justify-content:flex-start;
    }
    .mobile-panel .nav-link{
      min-height:48px;
      padding:0 16px;
      background:rgba(255,255,255,.03);
      border:1px solid var(--line);
    }
    .mobile-panel .nav-link.active{
      background:rgba(255,46,99,.10);
      border-color:rgba(255,46,99,.32);
      box-shadow:none;
    }
    .hero-shell{padding:36px 0 12px}
    .panel{
      background:
        linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02)),
        linear-gradient(180deg, rgba(17,17,22,.94), rgba(17,17,22,.90));
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
    }
    .section-title{
      font-size:clamp(24px, 2.8vw, 34px);
      line-height:1.12;
      letter-spacing:0;
    }
    .hero-title{
      font-size:clamp(34px, 4.5vw, 58px);
      line-height:1.08;
      font-weight:900;
      letter-spacing:0;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--accent);
      font-size:13px;
      font-weight:800;
      text-transform:none;
      letter-spacing:0;
    }
    .kicker-dot{
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(34,211,238,.12);
    }
    .trust-chip,
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:34px;
      padding:0 12px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.03);
      color:var(--text);
      font-size:13px;
      font-weight:700;
      white-space:nowrap;
    }
    .trust-chip.muted,
    .chip.muted{color:var(--muted)}
    .chip.active{
      border-color:rgba(255,46,99,.34);
      background:rgba(255,46,99,.10);
      color:#fff;
    }
    .chip-row{
      display:flex;
      gap:10px;
      overflow-x:auto;
      padding-bottom:2px;
      -webkit-overflow-scrolling:touch;
      scrollbar-width:thin;
    }
    .chip-row::-webkit-scrollbar{height:6px}
    .chip-row::-webkit-scrollbar-thumb{background:rgba(255,255,255,.18);border-radius:999px}
    .hero-preview{
      min-height:100%;
      padding:22px;
      position:relative;
      overflow:hidden;
    }
    .hero-preview::after{
      content:"";
      position:absolute;
      inset:auto -20% -34% auto;
      width:180px;
      height:180px;
      border-radius:999px;
      background:radial-gradient(circle, rgba(255,46,99,.12) 0%, rgba(255,46,99,0) 68%);
      pointer-events:none;
    }
    .mini-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0,1fr));
      gap:12px;
    }
    .mini-tile{
      padding:14px;
      border-radius:13px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.03);
    }
    .mini-label{color:var(--muted);font-size:12px;font-weight:700}
    .mini-value{margin-top:7px;font-size:16px;font-weight:900;line-height:1.15}
    .status-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:30px;
      padding:0 10px;
      border-radius:999px;
      background:rgba(34,211,238,.08);
      border:1px solid rgba(34,211,238,.18);
      color:#d7fbff;
      font-size:12px;
      font-weight:800;
    }
    .status-dot{
      width:8px;
      height:8px;
      border-radius:999px;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(34,211,238,.10);
    }
    .entry-section{
      padding:24px 0 0;
    }
    .filter-bar{
      display:flex;
      align-items:center;
      gap:10px;
      overflow-x:auto;
      padding-bottom:4px;
      -webkit-overflow-scrolling:touch;
      scrollbar-width:thin;
    }
    .filter-bar::-webkit-scrollbar{height:6px}
    .filter-bar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.18);border-radius:999px}
    .entry-row{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:18px;
      padding:18px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:rgba(255,255,255,.03);
      box-shadow:0 1px 0 rgba(255,255,255,.02) inset;
      transition:transform .15s ease, border-color .15s ease, background .15s ease, box-shadow .15s ease;
    }
    .entry-row:hover{
      transform:translateY(-1px);
      border-color:rgba(255,46,99,.26);
      background:rgba(255,46,99,.05);
      box-shadow:0 12px 28px rgba(0,0,0,.24);
    }
    .entry-index{
      flex:none;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:42px;
      height:42px;
      border-radius:12px;
      background:linear-gradient(135deg, rgba(255,46,99,.18), rgba(34,211,238,.16));
      border:1px solid rgba(255,255,255,.08);
      color:#fff;
      font-weight:900;
      font-size:14px;
    }
    .entry-title{
      font-size:18px;
      line-height:1.2;
      font-weight:900;
      color:#fff;
    }
    .entry-desc{
      margin-top:8px;
      color:var(--muted);
      font-size:15px;
      line-height:1.7;
    }
    .entry-meta{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:14px;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      min-height:30px;
      padding:0 10px;
      border-radius:999px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.025);
      color:#e4e4e7;
      font-size:12px;
      font-weight:700;
    }
    .entry-side{
      flex:none;
      display:flex;
      flex-direction:column;
      align-items:flex-end;
      gap:12px;
      min-width:132px;
    }
    .entry-time{
      color:var(--muted);
      font-size:12px;
      font-weight:700;
    }
    .entry-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:44px;
      padding:0 16px;
      border-radius:12px;
      background:rgba(255,255,255,.04);
      border:1px solid var(--line);
      color:#fff;
      font-size:14px;
      font-weight:800;
      transition:transform .15s ease, border-color .15s ease, background .15s ease, box-shadow .15s ease;
    }
    .entry-btn:hover,
    .entry-btn:focus-visible{
      transform:translateY(-1px);
      border-color:rgba(34,211,238,.34);
      background:rgba(34,211,238,.08);
      outline:none;
      box-shadow:0 10px 22px rgba(0,0,0,.18);
    }
    .sidebar-block{
      padding:18px;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:rgba(255,255,255,.03);
    }
    .sidebar-title{
      font-size:17px;
      line-height:1.2;
      font-weight:900;
      color:#fff;
    }
    .field{
      display:flex;
      gap:10px;
      margin-top:12px;
    }
    .search-input{
      width:100%;
      min-width:0;
      min-height:48px;
      padding:0 14px;
      border-radius:12px;
      border:1px solid var(--line);
      background:#0d0d12;
      color:var(--text);
      outline:none;
      transition:border-color .15s ease, box-shadow .15s ease, background .15s ease;
    }
    .search-input::placeholder{color:#71717a}
    .search-input:focus{
      border-color:rgba(255,46,99,.45);
      box-shadow:0 0 0 4px rgba(255,46,99,.12);
      background:#101018;
    }
    .text-muted{color:var(--muted)}
    .note-list{
      display:grid;
      gap:10px;
      margin-top:12px;
    }
    .note-item{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#e4e4e7;
      font-size:14px;
      line-height:1.65;
    }
    .note-bullet{
      width:8px;
      height:8px;
      border-radius:999px;
      margin-top:8px;
      background:var(--primary);
      box-shadow:0 0 0 5px rgba(255,46,99,.10);
      flex:none;
    }
    .compare-wrap{
      overflow-x:auto;
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:rgba(255,255,255,.03);
      box-shadow:var(--shadow-soft);
    }
    table.compare{
      width:100%;
      border-collapse:collapse;
      min-width:760px;
    }
    .compare th,
    .compare td{
      padding:16px 18px;
      text-align:left;
      border-bottom:1px solid rgba(255,255,255,.07);
      vertical-align:top;
      font-size:14px;
    }
    .compare th{
      color:#fff;
      font-size:13px;
      letter-spacing:.01em;
      background:rgba(255,255,255,.025);
    }
    .compare td{color:#e5e7eb}
    .compare tr:last-child td{border-bottom:none}
    .feedback-grid{
      display:grid;
      grid-template-columns:repeat(3, minmax(0,1fr));
      gap:16px;
    }
    .feedback-card{
      padding:18px;
      border-radius:var(--radius);
      border:1px solid var(--line);
      background:rgba(255,255,255,.03);
    }
    .feedback-card h3{
      font-size:17px;
      font-weight:900;
      line-height:1.2;
      margin:0;
    }
    .feedback-card p{
      margin:10px 0 0;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
    }
    details.faq-item{
      border:1px solid var(--line);
      border-radius:var(--radius);
      background:rgba(255,255,255,.03);
      overflow:hidden;
      transition:border-color .15s ease, background .15s ease;
    }
    details.faq-item[open]{
      border-color:rgba(255,46,99,.34);
      background:rgba(255,46,99,.05);
    }
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding:18px 18px;
      font-size:15px;
      font-weight:800;
      color:#fff;
      min-height:52px;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    .faq-answer{
      padding:0 18px 18px;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
    }
    .faq-arrow{
      flex:none;
      width:10px;
      height:10px;
      border-right:2px solid rgba(255,255,255,.65);
      border-bottom:2px solid rgba(255,255,255,.65);
      transform:rotate(45deg);
      transition:transform .18s ease;
      margin-left:auto;
    }
    details[open] .faq-arrow{transform:rotate(225deg)}
    .site-footer{
      margin-top:44px;
      padding:34px 0 28px;
      border-top:1px solid rgba(255,255,255,.06);
      background:rgba(4,4,8,.86);
      position:relative;
      z-index:1;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.4fr .8fr .8fr;
      gap:24px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      font-size:14px;
      font-weight:700;
      transition:color .15s ease, transform .15s ease;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:#fff;
      transform:translateX(2px);
      outline:none;
    }
    .bottom-cta{
      position:fixed;
      left:0;
      right:0;
      bottom:0;
      z-index:55;
      background:rgba(8,8,11,.95);
      border-top:1px solid rgba(255,255,255,.10);
      box-shadow:0 -12px 34px rgba(0,0,0,.35);
      backdrop-filter:blur(18px);
    }
    .bottom-cta-inner{
      display:grid;
      grid-template-columns:1.2fr auto;
      gap:14px 18px;
      align-items:center;
      padding:14px 0;
    }
    .bottom-title{
      font-size:15px;
      font-weight:900;
      color:#fff;
      line-height:1.2;
    }
    .bottom-copy{
      margin-top:4px;
      color:var(--muted);
      font-size:13px;
      line-height:1.45;
    }
    .bottom-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:10px;
    }
    .bottom-actions{
      display:flex;
      align-items:center;
      gap:10px;
      justify-content:flex-end;
    }
    .caret{
      width:8px;
      height:8px;
      border-right:2px solid currentColor;
      border-bottom:2px solid currentColor;
      transform:rotate(-45deg);
      margin-top:-1px;
    }
    .sr-only{
      position:absolute;
      width:1px;
      height:1px;
      padding:0;
      margin:-1px;
      overflow:hidden;
      clip:rect(0,0,0,0);
      white-space:nowrap;
      border:0;
    }
    .text-tight{line-height:1.15}
    .text-wrap{overflow-wrap:anywhere;word-break:break-word}
    @media (max-width: 1024px){
      .footer-grid,
      .feedback-grid{
        grid-template-columns:1fr 1fr;
      }
      .feedback-card:last-child{
        grid-column:1 / -1;
      }
    }
    @media (max-width: 768px){
      body{padding-bottom:128px}
      .desktop-nav,
      .nav-cta{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-panel.open{display:block}
      .hero-shell{padding-top:24px}
      .footer-grid,
      .feedback-grid{
        grid-template-columns:1fr;
      }
      .entry-row{
        flex-direction:column;
        align-items:stretch;
      }
      .entry-side{
        align-items:flex-start;
        min-width:0;
      }
      .bottom-cta-inner{
        grid-template-columns:1fr;
      }
      .bottom-actions{
        justify-content:stretch;
      }
      .bottom-actions .btn-primary,
      .bottom-actions .btn-secondary{
        width:100%;
      }
    }
    @media (max-width: 520px){
      .site-container{width:min(100% - 22px, var(--container))}
      .nav-wrap{min-height:70px}
      .brand-text{max-width:220px;font-size:14px}
      .hero-title{font-size:clamp(30px, 10vw, 40px)}
      .section-title{font-size:clamp(22px, 7vw, 28px)}
      .hero-preview{padding:18px}
      .mini-grid{grid-template-columns:1fr}
      .bottom-cta-inner{padding:12px 0}
      .compare th,
      .compare td{padding:14px 14px}
    }
    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
    }