/* roulang page: index */
:root {
    --color-primary: #FF4D24;
    --color-secondary: #FFB800;
    --color-accent: #16E0C8;
    --bg-deep: #0C0E12;
    --bg-card: #161A22;
    --bg-raised: #1E242E;
    --text-white: #FAFAFA;
    --text-body: #C2C8D1;
    --text-muted: #8A929E;
    --radius-card: 1.5rem;
    --radius-btn: 0.75rem;
    --shadow-card: 0 4px 24px rgba(0,0,0,0.28);
    --shadow-hover: 0 12px 40px rgba(255,77,36,0.12);
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    background: var(--bg-deep);
    color: var(--text-white);
    font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
    line-height: 1.6;
  }

  body,
  div,
  section,
  header,
  footer,
  main,
  aside {
    scroll-margin-top: 92px;
  }

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

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

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

  :focus-visible {
    outline: 2px solid rgba(255, 77, 36, 0.9);
    outline-offset: 4px;
    border-radius: 10px;
  }

  .container-page {
    max-width: 80rem;
    margin: 0 auto;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  @media (min-width: 640px) {
    .container-page {
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }
  }

  @media (min-width: 1024px) {
    .container-page {
      padding-left: 2rem;
      padding-right: 2rem;
    }
  }

  .text-gradient {
    color: transparent;
    background-image: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }

  @supports not ((background-clip: text) or (-webkit-background-clip: text)) {
    .text-gradient {
      color: #FFB800;
      -webkit-text-fill-color: #FFB800;
    }
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 60;
    background: rgba(12, 14, 18, 0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .logo-mark {
    width: 2.4rem;
    height: 2.4rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.9rem;
    background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
    box-shadow: 0 0 22px rgba(255, 77, 36, 0.3);
    flex: 0 0 auto;
  }

  .brand-title {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    white-space: nowrap;
  }

  .brand-title .en {
    color: transparent;
    background-image: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
    -webkit-background-clip: text;
    background-clip: text;
    font-weight: 900;
    font-size: 1.5rem;
  }

  .desktop-nav {
    display: flex;
    align-items: stretch;
    gap: 0.1rem;
  }

  .nav-link {
    position: relative;
    display: flex;
    align-items: center;
    height: 72px;
    padding: 0 0.85rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: #C2C8D1;
    transition: color 0.25s ease;
    white-space: nowrap;
  }

  .nav-link svg {
    margin-left: 0.3rem;
  }

  .nav-link::after {
    content: "";
    position: absolute;
    left: 0.75rem;
    right: 0.75rem;
    bottom: -1px;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, #FF4D24, #FFB800);
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.3s ease;
  }

  .nav-link:hover,
  .nav-link:focus-visible {
    color: #FAFAFA;
  }

  .nav-link:hover::after,
  .nav-link:focus-visible::after,
  .active-nav .nav-link::after {
    transform: scaleX(1);
  }

  .active-nav .nav-link {
    color: #FFFFFF;
  }

  .mega-wrap {
    position: relative;
  }

  .mega-panel {
    position: absolute;
    top: 100%;
    left: 50%;
    width: min(720px, 92vw);
    transform: translateX(-50%) translateY(10px);
    background: #161A22;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 1.5rem;
    box-shadow: 0 28px 70px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.28s ease, visibility 0.28s ease, transform 0.28s ease;
    z-index: 80;
  }

  .mega-wrap:hover .mega-panel,
  .mega-wrap:focus-within .mega-panel {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(4px);
  }

  .mega-panel::before {
    content: "";
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-bottom: 10px solid rgba(255, 255, 255, 0.04);
  }

  .mega-title {
    font-size: 0.8rem;
    color: #8A929E;
    letter-spacing: 0.04em;
    margin-bottom: 0.6rem;
  }

  .mega-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.72rem 0.9rem;
    border-radius: 14px;
    font-size: 0.95rem;
    color: #ECEFF3;
    transition: background 0.2s ease, color 0.2s ease;
  }

  .mega-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #FFB800;
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2.6rem;
    padding: 0 1.1rem;
    border-radius: 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.25s ease;
    white-space: nowrap;
  }

  .nav-cta-ghost {
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ECEFF3;
  }

  .nav-cta-ghost:hover {
    border-color: #FFB800;
    color: #FFB800;
  }

  .nav-cta-solid {
    background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
    color: #FFFFFF;
    box-shadow: 0 0 18px rgba(255, 77, 36, 0.22);
  }

  .nav-cta-solid:hover {
    box-shadow: 0 0 30px rgba(255, 77, 36, 0.35);
    transform: translateY(-2px);
  }

  .mobile-menu {
    background: #10141A;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .mobile-menu a {
    display: block;
    padding: 0.85rem 1rem;
    font-size: 1rem;
    color: #ECEFF3;
    border-radius: 0.8rem;
    transition: background 0.2s ease;
  }

  .mobile-menu a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #FFB800;
  }

  .m-card {
    background: #161A22;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 1.5rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.28);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  }

  .m-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(255, 77, 36, 0.12), 0 0 0 1px rgba(255, 184, 0, 0.22);
    border-color: rgba(255, 184, 0, 0.12);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 3rem;
    padding: 0 1.6rem;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, color 0.25s ease;
    cursor: pointer;
    border: 1px solid transparent;
    white-space: nowrap;
  }

  .btn-grad {
    background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
    color: #FFFFFF;
    box-shadow: 0 6px 22px rgba(255, 77, 36, 0.25);
  }

  .btn-grad:hover {
    box-shadow: 0 0 34px rgba(255, 77, 36, 0.38);
    transform: translateY(-2px);
  }

  .btn-grad:active {
    transform: translateY(0) scale(0.98);
  }

  .btn-outline {
    border-color: rgba(255, 255, 255, 0.22);
    color: #FFFFFF;
    background: transparent;
  }

  .btn-outline:hover {
    border-color: #FFB800;
    color: #FFB800;
  }

  .hero-orb {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
  }

  .hero-orb-one {
    width: 620px;
    height: 620px;
    right: -120px;
    top: -160px;
    background: radial-gradient(circle, rgba(255, 184, 0, 0.14) 0%, transparent 65%);
  }

  .hero-orb-two {
    width: 460px;
    height: 460px;
    left: -140px;
    bottom: -120px;
    background: radial-gradient(circle, rgba(255, 77, 36, 0.16) 0%, transparent 62%);
  }

  .data-badge {
    display: inline-flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.85rem 1.1rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(6px);
    min-width: 110px;
  }

  .data-badge .num {
    font-family: Arial, "Helvetica Neue", sans-serif;
    font-size: 1.65rem;
    font-weight: 800;
    line-height: 1;
    color: #FFB800;
    letter-spacing: -0.02em;
  }

  .data-badge .label {
    color: #C2C8D1;
    font-size: 0.85rem;
  }

  .shield-line {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.8rem;
  }

  .step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.6rem;
    height: 2.2rem;
    padding: 0 0.7rem;
    border-radius: 2rem;
    font-family: Arial, "Helvetica Neue", sans-serif;
    font-size: 0.9rem;
    font-weight: 800;
    background: linear-gradient(135deg, #FF4D24, #FFB800);
    color: #FFFFFF;
    box-shadow: 0 0 16px rgba(255, 77, 36, 0.3);
  }

  .benefit-amount {
    font-family: Arial, "Helvetica Neue", sans-serif;
    font-size: 2.7rem;
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: #FFFFFF;
  }

  .benefit-amount small {
    font-size: 1rem;
    font-weight: 400;
    color: #C2C8D1;
    margin-left: 0.45rem;
  }

  .arrow-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: #FFB800;
    font-weight: 600;
    font-size: 0.95rem;
    transition: gap 0.25s ease, color 0.25s ease;
  }

  .arrow-link:hover {
    gap: 0.65rem;
    color: #FF4D24;
  }

  .section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.45rem 1rem;
    border-radius: 999px;
    background: rgba(255, 77, 36, 0.1);
    color: #FFB800;
    border: 1px solid rgba(255, 184, 0, 0.16);
    font-size: 0.82rem;
    font-weight: 600;
  }

  .section-title {
    font-size: 2rem;
    line-height: 1.2;
    letter-spacing: -0.02em;
    font-weight: 800;
  }

  @media (min-width: 1024px) {
    .section-title {
      font-size: 2.6rem;
    }
  }

  .plan-icon {
    width: 3rem;
    height: 3rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 1rem;
    background: rgba(255, 77, 36, 0.12);
    color: #FFB800;
  }

  .hot-tag {
    position: absolute;
    top: -0.75rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.3rem 0.85rem;
    border-radius: 999px;
    background: linear-gradient(135deg, #FF4D24, #FFB800);
    color: #FFFFFF;
    font-size: 0.78rem;
    font-weight: 700;
    white-space: nowrap;
    box-shadow: 0 4px 18px rgba(255, 77, 36, 0.35);
    z-index: 2;
  }

  .check-icon {
    color: #34D399;
    flex: 0 0 auto;
    margin-top: 0.1rem;
  }

  .cross-icon {
    color: rgba(248, 113, 113, 0.8);
    flex: 0 0 auto;
    margin-top: 0.1rem;
  }

  .feature-row {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.94rem;
    color: #C2C8D1;
    line-height: 1.5;
  }

  .countdown-strip {
    background: #161A22;
    background-image: repeating-linear-gradient(45deg, transparent, transparent 12px, rgba(255, 255, 255, 0.025) 12px, rgba(255, 255, 255, 0.025) 14px);
    border: 1px solid rgba(255, 184, 0, 0.2);
  }

  .time-box {
    background: #0C0E12;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 0.9rem;
    min-width: 4.6rem;
    padding: 0.8rem 0.5rem;
    text-align: center;
  }

  .time-box .time-num {
    font-family: Arial, "Helvetica Neue", sans-serif;
    font-size: 2rem;
    font-weight: 800;
    line-height: 1;
    color: #FFB800;
    text-shadow: 0 0 22px rgba(255, 184, 0, 0.3);
  }

  .time-box .time-unit {
    color: #8A929E;
    font-size: 0.82rem;
    margin-top: 0.35rem;
  }

  .news-card-img {
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #1E242E;
    position: relative;
  }

  .news-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
  }

  .news-card:hover .news-card-img img {
    transform: scale(1.05);
  }

  .cover-placeholder {
    background-image: linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 28px 28px;
  }

  .clamp-1 {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
  }

  .badge-news {
    display: inline-flex;
    align-items: center;
    gap: 0.2rem;
    padding: 0.32rem 0.7rem;
    border-radius: 999px;
    background: rgba(255, 77, 36, 0.12);
    color: #FFB800;
    font-size: 0.78rem;
    font-weight: 600;
    border: 1px solid rgba(255, 184, 0, 0.14);
  }

  .faq-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .faq-item {
    background: #161A22;
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 1.4rem;
    overflow: hidden;
    transition: border-color 0.25s ease, background 0.25s ease;
  }

  .faq-item:hover {
    border-color: rgba(255, 184, 0, 0.16);
  }

  .faq-item summary {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-height: 56px;
    padding: 0.75rem 1.4rem;
    cursor: pointer;
    list-style: none;
    transition: background 0.25s ease;
    user-select: none;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-item[open] summary {
    background: #1E242E;
  }

  .q-icon {
    width: 2.1rem;
    height: 2.1rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 77, 36, 0.1);
    color: #FF4D24;
    font-weight: 800;
    font-size: 0.9rem;
    flex: 0 0 auto;
  }

  .faq-item[open] .q-icon {
    background: rgba(22, 224, 200, 0.1);
    color: #16E0C8;
  }

  .faq-text {
    font-size: 1rem;
    font-weight: 600;
    color: #FAFAFA;
    flex: 1;
    line-height: 1.4;
  }

  .toggle-icon {
    width: 1.8rem;
    height: 1.8rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.06);
    color: #FFB800;
    font-size: 1.2rem;
    flex: 0 0 auto;
    transition: transform 0.3s ease, background 0.3s ease;
  }

  .faq-item[open] .toggle-icon {
    transform: rotate(135deg);
    background: rgba(255, 184, 0, 0.12);
  }

  .faq-answer {
    padding: 0 1.5rem 1.35rem 4.6rem;
    color: #C2C8D1;
    font-size: 0.95rem;
    line-height: 1.8;
  }

  .lead-form-card {
    background: #FFFFFF;
    color: #111827;
    border-radius: 1.5rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  }

  .lead-form-card .form-label {
    display: block;
    color: #374151;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.45rem;
  }

  .lead-form-card input,
  .lead-form-card select,
  .lead-form-card textarea {
    width: 100%;
    border-radius: 0.85rem;
    border: 1px solid rgba(0, 0, 0, 0.14);
    background: #F9FAFB;
    padding: 0.8rem 1rem;
    font-size: 0.95rem;
    color: #111827;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
  }

  .lead-form-card input:focus,
  .lead-form-card select:focus,
  .lead-form-card textarea:focus {
    outline: none;
    border-color: #FF4D24;
    box-shadow: 0 0 0 4px rgba(255, 77, 36, 0.08);
  }

  .footer-link {
    color: #C2C8D1;
    transition: color 0.2s ease;
    line-height: 2.1rem;
    font-size: 0.92rem;
  }

  .footer-link:hover {
    color: #FFB800;
  }

  .under-note {
    color: #8A929E;
    font-size: 0.78rem;
  }

  .bg-grid-light {
    background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 42px 42px;
  }

  @media (max-width: 640px) {
    .time-box {
      min-width: 3.8rem;
      padding: 0.6rem 0.2rem;
    }
    .time-box .time-num {
      font-size: 1.5rem;
    }
    .faq-answer {
      padding-left: 1.3rem;
    }
  }

/* roulang page: article */
:root {
        --color-primary: #FF4D24;
        --color-secondary: #FFB800;
        --color-accent: #16E0C8;
        --bg-deep: #0C0E12;
        --bg-card: #161A22;
        --bg-raised: #1E242E;
        --tx-white: #FAFAFA;
        --tx-body: #C2C8D1;
        --tx-muted: #8A929E;
        --radius-card: 1.5rem;
        --radius-btn: 0.75rem;
        --radius-full: 9999px;
        --shadow-card: 0 4px 24px rgba(0, 0, 0, .28);
        --shadow-glow: 0 12px 40px rgba(255, 77, 36, .12);
        --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
    }

    * {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        background: var(--bg-deep);
        color: var(--tx-white);
        font-family: var(--font-sans);
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
    }

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

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

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

    ::selection {
        background: rgba(255, 77, 36, .4);
        color: #fff;
    }

    :focus-visible {
        outline: 2px solid var(--color-secondary);
        outline-offset: 3px;
        border-radius: 6px;
    }

    .container-page {
        width: 100%;
        max-width: 80rem;
        margin-left: auto;
        margin-right: auto;
        padding-left: 1rem;
        padding-right: 1rem;
    }

    @media (min-width: 640px) {
        .container-page {
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
    }

    @media (min-width: 1024px) {
        .container-page {
            padding-left: 2rem;
            padding-right: 2rem;
        }
    }

    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 120;
        background: rgba(12, 14, 18, .88);
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid rgba(255, 255, 255, .08);
    }

    .nav-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 72px;
        gap: 1rem;
        position: relative;
    }

    .logo-mark {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        border-radius: 13px;
        background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
        box-shadow: 0 8px 24px rgba(255, 77, 36, .32);
        flex: 0 0 auto;
    }

    .brand-title {
        display: flex;
        align-items: baseline;
        font-size: 1.32rem;
        font-weight: 900;
        letter-spacing: -.02em;
        white-space: nowrap;
    }

    .brand-title .en {
        color: transparent;
        background: linear-gradient(135deg, #FF4D24, #FFB800);
        -webkit-background-clip: text;
        background-clip: text;
        font-size: 1.45rem;
        font-weight: 900;
        letter-spacing: -.03em;
        margin-right: .06em;
    }

    .desktop-nav {
        display: flex;
        align-items: stretch;
        gap: .25rem;
        margin-left: 1rem;
    }

    @media (min-width: 1280px) {
        .desktop-nav {
            margin-left: 2.5rem;
            gap: .5rem;
        }
    }

    .nav-item {
        display: flex;
        align-items: stretch;
        position: relative;
    }

    .nav-link {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        padding: 0 .8rem;
        font-size: .94rem;
        font-weight: 500;
        color: var(--tx-body);
        transition: color .2s;
        border-radius: 12px;
        cursor: pointer;
        white-space: nowrap;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
        color: var(--tx-white);
    }

    .nav-link svg {
        opacity: .7;
        transition: transform .25s;
    }

    .nav-item.active-nav .nav-link {
        color: #fff;
        font-weight: 700;
    }

    .nav-item.active-nav .nav-link::after {
        content: "";
        position: absolute;
        left: .8rem;
        right: .8rem;
        bottom: 8px;
        height: 2px;
        border-radius: 99px;
        background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    }

    .mega-wrap {
        position: relative;
    }

    .mega-panel {
        position: absolute;
        top: calc(100% + 14px);
        left: 50%;
        width: 720px;
        max-width: calc(100vw - 2rem);
        background: var(--bg-card);
        border: 1px solid rgba(255, 255, 255, .08);
        border-radius: 24px;
        box-shadow: 0 24px 60px rgba(0, 0, 0, .45);
        padding: 1.6rem;
        opacity: 0;
        visibility: hidden;
        transform: translateX(-50%) translateY(10px);
        transition: opacity .22s ease, transform .22s ease, visibility .22s;
        z-index: 60;
    }

    .mega-wrap:hover .mega-panel,
    .mega-wrap:focus-within .mega-panel {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
    }

    .mega-panel::before {
        content: "";
        position: absolute;
        top: -8px;
        left: 50%;
        width: 16px;
        height: 16px;
        background: var(--bg-card);
        border-left: 1px solid rgba(255, 255, 255, .08);
        border-top: 1px solid rgba(255, 255, 255, .08);
        transform: translateX(-50%) rotate(45deg);
        border-radius: 4px;
    }

    .mega-eyebrow {
        font-size: .78rem;
        font-weight: 700;
        letter-spacing: .08em;
        color: var(--tx-muted);
        margin-bottom: .9rem;
    }

    .mega-link {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: .5rem;
        padding: .62rem .8rem;
        color: var(--tx-body);
        font-size: .94rem;
        border-radius: 12px;
        transition: background .2s, color .2s;
        margin-bottom: .2rem;
    }

    .mega-link:hover {
        background: rgba(255, 255, 255, .05);
        color: var(--color-secondary);
    }

    .mega-link span {
        display: flex;
        align-items: center;
        gap: .55rem;
    }

    .mega-preview-card {
        display: flex;
        gap: .9rem;
        padding: .7rem;
        background: rgba(255, 255, 255, .03);
        border: 1px solid rgba(255, 255, 255, .06);
        border-radius: 16px;
        transition: border-color .2s, transform .2s;
        margin-bottom: .7rem;
        align-items: center;
    }

    .mega-preview-card:hover {
        border-color: rgba(255, 184, 0, .35);
        transform: translateY(-2px);
    }

    .mega-preview-card img {
        width: 76px;
        height: 52px;
        border-radius: 10px;
        object-fit: cover;
        flex: 0 0 auto;
    }

    .mega-preview-card p {
        margin: 0;
        font-size: .9rem;
        font-weight: 600;
        color: #EDF0F5;
        line-height: 1.45;
    }

    .mega-preview-card span {
        font-size: .78rem;
        color: var(--tx-muted);
    }

    .header-actions {
        display: flex;
        align-items: center;
        gap: .6rem;
        margin-left: auto;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: .5rem;
        border-radius: var(--radius-btn);
        border: 1px solid transparent;
        cursor: pointer;
        transition: all .25s ease;
        font-weight: 600;
        line-height: 1;
        user-select: none;
        white-space: nowrap;
    }

    .btn-ghost {
        background: transparent;
        border-color: rgba(255, 255, 255, .12);
        color: var(--tx-body);
        padding: .65rem 1.15rem;
        font-size: .9rem;
    }

    .btn-ghost:hover {
        border-color: var(--color-secondary);
        color: var(--color-secondary);
        box-shadow: 0 0 20px rgba(255, 184, 0, .12);
    }

    .btn-gradient {
        background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
        color: #fff;
        padding: .7rem 1.3rem;
        font-size: .9rem;
        box-shadow: 0 10px 28px rgba(255, 77, 36, .25);
    }

    .btn-gradient:hover {
        transform: translateY(-2px);
        box-shadow: 0 0 32px rgba(255, 77, 36, .42);
    }

    .btn-gradient:active {
        transform: translateY(1px);
    }

    .btn-line {
        background: transparent;
        border: 1px solid rgba(255, 255, 255, .12);
        color: var(--tx-body);
        padding: .68rem 1.25rem;
        font-size: .9rem;
    }

    .btn-line:hover {
        border-color: var(--color-secondary);
        color: var(--color-secondary);
        transform: translateY(-2px);
    }

    .mobile-btn {
        width: 44px;
        height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 14px;
        color: #fff;
        background: rgba(255, 255, 255, .05);
        border: 1px solid rgba(255, 255, 255, .08);
        cursor: pointer;
    }

    .nav-check {
        position: fixed;
        left: -9999px;
        opacity: 0;
    }

    .mobile-menu {
        display: none;
    }

    @media (max-width: 1023.98px) {
        .mobile-menu {
            display: block;
            position: absolute;
            top: calc(100% + 8px);
            left: 1rem;
            right: 1rem;
            background: var(--bg-card);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 24px;
            box-shadow: 0 24px 60px rgba(0, 0, 0, .5);
            padding: 1rem;
            opacity: 0;
            visibility: hidden;
            transform: translateY(12px);
            transition: opacity .25s ease, transform .25s ease, visibility .25s;
        }

        .nav-check:checked~.mobile-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .mobile-menu a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: .8rem;
            color: var(--tx-body);
            font-size: 1.02rem;
            font-weight: 600;
            border-radius: 14px;
        }

        .mobile-menu a:hover {
            background: rgba(255, 255, 255, .05);
            color: #fff;
        }

        .mobile-menu .menu-cta-row {
            display: flex;
            gap: .6rem;
            padding: .4rem .4rem 0;
        }
    }

    .hero-article {
        position: relative;
        overflow: hidden;
        background: #080A0E;
        min-height: 300px;
    }

    .hero-article-bg {
        position: absolute;
        inset: 0;
        background-size: cover;
        background-position: center;
        opacity: .38;
    }

    .hero-article-bg::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(12, 14, 18, .78), rgba(12, 14, 18, .58) 50%, rgba(12, 14, 18, .95));
    }

    .hero-article-glow {
        position: absolute;
        width: 480px;
        height: 480px;
        right: -120px;
        top: -150px;
        background: radial-gradient(circle, rgba(255, 77, 36, .22), transparent 70%);
        pointer-events: none;
    }

    .breadcrumb {
        position: relative;
        display: flex;
        align-items: center;
        gap: .4rem;
        color: var(--tx-muted);
        font-size: .88rem;
        flex-wrap: wrap;
        padding-top: 30px;
        z-index: 2;
    }

    .breadcrumb a {
        display: inline-flex;
        align-items: center;
        gap: .35rem;
        color: var(--tx-body);
        transition: color .2s;
    }

    .breadcrumb a:hover {
        color: var(--color-secondary);
    }

    .breadcrumb-sep {
        opacity: .45;
    }

    .article-title-wrap {
        position: relative;
        z-index: 2;
        padding: 2rem 0 2.2rem;
        max-width: 920px;
    }

    .article-cat-chip {
        display: inline-flex;
        align-items: center;
        background: linear-gradient(135deg, rgba(255, 77, 36, .18), rgba(255, 184, 0, .18));
        border: 1px solid rgba(255, 184, 0, .28);
        color: #FFD08A;
        font-size: .8rem;
        padding: .32rem .8rem;
        border-radius: 999px;
        margin-bottom: 1.1rem;
    }

    .article-title {
        margin: 0;
        font-size: clamp(1.7rem, 3.5vw, 2.7rem);
        font-weight: 900;
        letter-spacing: -.035em;
        line-height: 1.3;
        color: #fff;
        text-shadow: 0 4px 28px rgba(0, 0, 0, .4);
    }

    .article-meta {
        margin-top: 1.1rem;
        display: flex;
        align-items: center;
        gap: .7rem;
        flex-wrap: wrap;
        color: var(--tx-muted);
        font-size: .85rem;
    }

    .article-meta .dot-sub {
        width: 4px;
        height: 4px;
        border-radius: 999px;
        background: var(--tx-muted);
        opacity: .5;
    }

    .article-body-wrap {
        margin-top: 0;
        padding-top: 0;
    }

    .article-body {
        max-width: 736px;
        margin: 0 auto;
        background: var(--bg-card);
        border: 1px solid rgba(255, 255, 255, .06);
        border-radius: 30px;
        padding: 2.2rem 1.8rem;
        box-shadow: var(--shadow-card);
        position: relative;
        z-index: 5;
        transform: translateY(-52px);
        margin-bottom: -30px;
    }

    @media (min-width: 640px) {
        .article-body {
            padding: 2.8rem 2.8rem;
            transform: translateY(-60px);
            margin-bottom: -28px;
        }
    }

    .article-body::before {
        content: "";
        position: absolute;
        top: 0;
        left: 36px;
        right: 36px;
        height: 4px;
        border-radius: 0 0 8px 8px;
        background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    }

    .article-content {
        color: var(--tx-body);
        font-size: 1.03rem;
        line-height: 1.9;
    }

    .article-content p {
        margin: 1.25em 0;
        color: var(--tx-body);
    }

    .article-content h2 {
        color: #fff;
        font-size: 1.5rem;
        line-height: 1.4;
        margin: 2em 0 .7em;
        padding-left: .8em;
        position: relative;
        font-weight: 800;
    }

    .article-content h2::before {
        content: "";
        position: absolute;
        left: 0;
        top: .16em;
        bottom: .16em;
        width: 5px;
        border-radius: 99px;
        background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
    }

    .article-content h3 {
        color: #fff;
        font-size: 1.2rem;
        font-weight: 700;
        margin: 1.8em 0 .55em;
        line-height: 1.45;
        border-bottom: 1px solid rgba(255, 255, 255, .08);
        padding-bottom: .45rem;
    }

    .article-content h4 {
        color: #fff;
        font-size: 1.05rem;
        font-weight: 700;
        margin: 1.5em 0 .4em;
    }

    .article-content ul,
    .article-content ol {
        padding-left: 1.25rem;
        margin: 1.1rem 0;
    }

    .article-content li {
        margin: .4rem 0;
        padding-left: .2rem;
    }

    .article-content li::marker {
        color: var(--color-secondary);
    }

    .article-content blockquote {
        margin: 1.6rem 0;
        padding: 1rem 1.3rem;
        background: rgba(255, 255, 255, .035);
        border-left: 4px solid var(--color-primary);
        border-radius: 0 20px 20px 0;
        color: #DFE4EC;
        font-size: .99rem;
    }

    .article-content blockquote p {
        margin: .4rem 0;
        color: #DFE4EC;
    }

    .article-content img {
        display: block;
        margin: 2rem auto;
        border-radius: 18px;
        width: 100%;
        object-fit: cover;
        box-shadow: 0 22px 55px rgba(0, 0, 0, .38);
    }

    .article-content strong {
        color: #fff;
    }

    .article-content a {
        color: var(--color-secondary);
        border-bottom: 1px solid rgba(255, 184, 0, .35);
        transition: border-color .2s;
    }

    .article-content a:hover {
        border-bottom-color: var(--color-secondary);
        color: #FFD27E;
    }

    .article-content hr {
        border: 0;
        height: 1px;
        background: linear-gradient(90deg, rgba(255, 184, 0, .24), transparent);
        margin: 2.8rem auto;
        max-width: 70%;
        opacity: .35;
    }

    .article-end-nav {
        display: flex;
        flex-wrap: wrap;
        gap: .7rem 1.2rem;
        justify-content: space-between;
        align-items: center;
        border-top: 1px solid rgba(255, 255, 255, .08);
        margin-top: 2.6rem;
        padding-top: 1.8rem;
    }

    .back-home-link {
        display: inline-flex;
        align-items: center;
        gap: .45rem;
        color: var(--color-secondary);
        font-weight: 600;
        font-size: .94rem;
    }

    .back-home-link:hover {
        color: var(--color-primary);
    }

    .section-space {
        padding-top: 3rem;
        padding-bottom: 3rem;
    }

    .related-section {
        position: relative;
        padding: 1rem 0 2.5rem;
    }

    .related-head {
        text-align: center;
        margin-bottom: 2rem;
    }

    .kick-label {
        display: inline-flex;
        align-items: center;
        gap: .4rem;
        color: #FFD08A;
        background: rgba(255, 184, 0, .1);
        border: 1px solid rgba(255, 184, 0, .2);
        padding: .3rem .9rem;
        font-size: .8rem;
        border-radius: 999px;
        margin-bottom: .75rem;
    }

    .related-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1.1rem;
    }

    @media (min-width: 640px) {
        .related-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }

    .related-card {
        background: var(--bg-card);
        border: 1px solid rgba(255, 255, 255, .07);
        border-radius: 24px;
        overflow: hidden;
        display: flex;
        gap: 1rem;
        flex-direction: row;
        padding: .7rem;
        transition: transform .25s, border-color .25s, box-shadow .25s;
    }

    .related-card:hover {
        transform: translateY(-4px);
        border-color: rgba(255, 184, 0, .34);
        box-shadow: var(--shadow-glow);
    }

    .related-card img {
        width: 118px;
        min-width: 108px;
        height: 110px;
        object-fit: cover;
        border-radius: 18px;
    }

    .related-card-body {
        padding: .25rem .3rem .2rem 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .related-card-body h3 {
        margin: 0 0 .5rem;
        font-size: .98rem;
        line-height: 1.5;
        color: #F4F6FA;
        font-weight: 700;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .related-card-body span {
        font-size: .78rem;
        color: var(--tx-muted);
    }

    .cta-lead-section {
        padding: 1.2rem 0 4.2rem;
    }

    .cta-lead-card {
        background: linear-gradient(135deg, rgba(255, 77, 36, .10), rgba(255, 184, 0, .06)), var(--bg-card);
        border: 1px solid rgba(255, 184, 0, .18);
        border-radius: 30px;
        padding: 1.6rem;
        text-align: center;
        overflow: hidden;
        position: relative;
    }

    @media (min-width: 640px) {
        .cta-lead-card {
            padding: 2.6rem;
        }
    }

    .cta-lead-card::after {
        content: "";
        position: absolute;
        width: 420px;
        height: 420px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(255, 184, 0, .15), transparent 68%);
        pointer-events: none;
        right: -140px;
        bottom: -200px;
    }

    .cta-lead-card h2 {
        position: relative;
        z-index: 2;
        font-size: 1.5rem;
        font-weight: 800;
        color: #fff;
        margin-bottom: .6rem;
    }

    .cta-lead-card p {
        position: relative;
        z-index: 2;
        color: var(--tx-body);
        max-width: 560px;
        margin: 0 auto 1.7rem;
        font-size: .96rem;
    }

    .cta-lead-actions {
        position: relative;
        z-index: 2;
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: .8rem;
    }

    .not-found-block {
        max-width: 680px;
        margin: 0 auto;
        text-align: center;
        padding: 3rem 1rem;
    }

    .not-found-icon {
        width: 68px;
        height: 68px;
        margin: 0 auto 1.2rem;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 22px;
        background: rgba(255, 255, 255, .05);
        border: 1px solid rgba(255, 255, 255, .08);
    }

    .not-found-title {
        font-size: 1.6rem;
        font-weight: 800;
        color: #fff;
        margin: 0 0 .7rem;
    }

    .not-found-desc {
        color: var(--tx-body);
        margin: 0 0 1.3rem;
    }

    .site-footer {
        background: #07080C;
        border-top: 1px solid rgba(255, 255, 255, .05);
    }

    .footer-link {
        color: var(--tx-muted);
        font-size: .9rem;
        transition: color .2s;
        cursor: default;
    }

    a.footer-link {
        cursor: pointer;
    }

    a.footer-link:hover {
        color: var(--color-secondary);
    }

    .footer-copyright-safe {
        color: rgba(255, 255, 255, .35);
        font-size: .78rem;
        line-height: 1.6;
        margin: .3rem 0 0;
    }

    .footer-bottom-line {
        border-top: 1px solid rgba(255, 255, 255, .05);
        padding: 1.4rem 0;
        margin-top: 2.2rem;
        color: rgba(255, 255, 255, .42);
        font-size: .82rem;
    }

/* roulang page: category1 */
:root {
        --color-primary: #FF4D24;
        --color-secondary: #FFB800;
        --color-accent: #16E0C8;
        --bg-deep: #0C0E12;
        --bg-card: #161A22;
        --bg-raised: #1E242E;
        --text-light: #FAFAFA;
        --text-body: #C2C8D1;
        --text-muted: #8A929E;
        --border-soft: rgba(255, 255, 255, 0.06);
        --border-light: rgba(255, 255, 255, 0.1);
        --grad-brand: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
        --radius-card: 1.5rem;
        --radius-btn: 0.75rem;
        --radius-full: 9999px;
        --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.28);
        --shadow-hover: 0 12px 40px rgba(255, 77, 36, 0.12);
        --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        font-family: var(--font-sans);
        background: var(--bg-deep);
        color: var(--text-light);
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
        text-rendering: optimizeLegibility;
    }

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

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

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible,
    summary:focus-visible {
        outline: 2px solid var(--color-primary);
        outline-offset: 2px;
    }

    h1,
    h2,
    h3,
    h4 {
        margin: 0;
        line-height: 1.25;
        font-weight: 700;
    }

    p {
        margin: 0;
    }

    ul,
    ol {
        margin: 0;
        padding: 0;
        list-style: none;
    }

    button {
        border: 0;
        cursor: pointer;
        font-family: inherit;
        background: transparent;
    }

    .page-main {
        padding-top: 72px;
    }

    .container-page {
        margin-left: auto;
        margin-right: auto;
        max-width: 80rem;
        padding-left: 1rem;
        padding-right: 1rem;
    }

    @media (min-width: 640px) {
        .container-page {
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
    }

    @media (min-width: 1024px) {
        .container-page {
            padding-left: 2rem;
            padding-right: 2rem;
        }
    }

    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 60;
        height: 72px;
        background: rgba(12, 14, 18, 0.88);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
    }

    .site-header .container-page {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 100%;
    }

    .site-header nav {
        height: 72px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }

    .logo-mark {
        width: 40px;
        height: 40px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 13px;
        background: linear-gradient(135deg, rgba(255, 77, 36, 0.26), rgba(255, 184, 0, 0.18));
        border: 1px solid rgba(255, 184, 0, 0.35);
        flex-shrink: 0;
    }

    .brand-title {
        font-size: 1.22rem;
        font-weight: 800;
        letter-spacing: 0.01em;
        display: inline-flex;
        align-items: baseline;
        gap: 0.08em;
        color: #fff;
        white-space: nowrap;
    }

    .brand-title .en {
        font-size: 1.42rem;
        font-weight: 900;
        letter-spacing: -0.04em;
        background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    .header-actions {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .btn-header {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        height: 42px;
        padding: 0 1rem;
        border-radius: 12px;
        font-size: 0.92rem;
        font-weight: 600;
        transition: all 0.3s ease;
    }

    .btn-header-ghost {
        border: 1px solid rgba(255, 255, 255, 0.13);
        color: #E6E8EB;
        background: rgba(255, 255, 255, 0.02);
    }

    .btn-header-ghost:hover {
        border-color: rgba(255, 77, 36, 0.5);
        color: #FF8A5C;
    }

    .btn-header-primary {
        background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
        color: #fff;
        box-shadow: 0 8px 22px rgba(255, 77, 36, 0.24);
    }

    .btn-header-primary:hover {
        transform: translateY(-1px);
        box-shadow: 0 10px 28px rgba(255, 77, 36, 0.35);
    }

    .desktop-nav {
        display: none;
        align-items: center;
        height: 72px;
    }

    .nav-item {
        position: relative;
        display: flex;
        align-items: center;
        height: 72px;
    }

    .nav-link {
        position: relative;
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 0 0.85rem;
        font-size: 1rem;
        font-weight: 600;
        color: #B0B6C0;
        letter-spacing: 0.01em;
        transition: color 0.25s ease;
        height: 72px;
        white-space: nowrap;
    }

    .nav-link svg {
        transition: transform 0.3s ease;
        opacity: 0.8;
    }

    .nav-item:hover .nav-link,
    .nav-item .nav-link[aria-current="page"] {
        color: #fff;
    }

    .nav-item.active-nav .nav-link::after {
        content: "";
        position: absolute;
        left: 0.85rem;
        right: 0.85rem;
        bottom: 0;
        height: 3px;
        border-radius: 999px 999px 0 0;
        background: linear-gradient(90deg, #FF4D24, #FFB800);
        opacity: 1;
    }

    .nav-link::after {
        content: "";
        position: absolute;
        left: 0.85rem;
        right: 0.85rem;
        bottom: 0;
        height: 3px;
        border-radius: 999px 999px 0 0;
        background: linear-gradient(90deg, #FF4D24, #FFB800);
        opacity: 0;
        transition: opacity 0.25s ease;
    }

    .nav-item:hover .nav-link::after {
        opacity: 1;
    }

    .mega-wrap:hover .nav-link svg,
    .mega-wrap:focus-within .nav-link svg {
        transform: rotate(180deg);
    }

    .mega-panel {
        position: absolute;
        top: calc(100% - 2px);
        left: 50%;
        transform: translateX(-50%) translateY(6px);
        width: min(680px, calc(100vw - 2rem));
        background: #131820;
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 24px;
        padding: 1.5rem;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
        box-shadow: 0 24px 70px rgba(0, 0, 0, 0.48);
    }

    .mega-wrap:hover .mega-panel,
    .mega-wrap:focus-within .mega-panel {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
    }

    .mega-panel::before {
        content: "";
        position: absolute;
        top: -10px;
        left: 50%;
        transform: translateX(-50%) rotate(45deg);
        width: 18px;
        height: 18px;
        background: #131820;
        border-left: 1px solid rgba(255, 255, 255, 0.08);
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .mega-title {
        font-size: 0.82rem;
        font-weight: 700;
        color: #8A929E;
        letter-spacing: 0.12em;
        margin-bottom: 0.9rem;
    }

    .mega-link {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 0.72rem 0.9rem;
        color: #D6DAE0;
        font-size: 0.95rem;
        font-weight: 600;
        border-radius: 14px;
        transition: background 0.2s ease, color 0.2s ease;
    }

    .mega-link span {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .mega-link svg {
        width: 14px;
        height: 14px;
        opacity: 0.5;
        transition: opacity 0.2s, transform 0.2s;
    }

    .mega-link:hover {
        background: rgba(255, 255, 255, 0.05);
        color: #fff;
    }

    .mega-link:hover svg {
        opacity: 1;
        transform: translateX(3px);
    }

    .mega-preview {
        border-radius: 18px;
        overflow: hidden;
        position: relative;
        min-height: 160px;
        background: #0C0E12;
    }

    .mega-preview img {
        width: 100%;
        height: 180px;
        object-fit: cover;
        opacity: 0.58;
    }

    .mega-preview-meta {
        position: absolute;
        left: 16px;
        right: 16px;
        bottom: 14px;
    }

    .mega-preview-meta strong {
        color: #fff;
        font-size: 1rem;
        font-weight: 700;
        display: block;
    }

    .mega-preview-meta span {
        color: rgba(255, 255, 255, 0.64);
        font-size: 0.82rem;
    }

    .mobile-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 14px;
        border: 1px solid rgba(255, 255, 255, 0.12);
        background: rgba(255, 255, 255, 0.04);
    }

    .mobile-panel {
        display: none;
        position: fixed;
        top: 72px;
        left: 16px;
        right: 16px;
        z-index: 70;
        background: #141A23;
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 24px;
        padding: 1rem;
        box-shadow: 0 30px 70px rgba(0, 0, 0, 0.4);
    }

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

    .mobile-menu-link {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0.9rem 0.5rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        font-weight: 600;
        color: #D6DAE0;
    }

    .mobile-menu-link.active {
        color: #FFB800;
    }

    .mobile-sub-label {
        font-size: 0.82rem;
        color: #8A929E;
        padding: 0.4rem 0.5rem 0.2rem;
        letter-spacing: 0.08em;
    }

    .btn-primary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        padding: 0.95rem 1.6rem;
        border-radius: var(--radius-btn);
        background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
        color: #fff;
        font-weight: 700;
        font-size: 1rem;
        line-height: 1;
        box-shadow: 0 10px 30px rgba(255, 77, 36, 0.18);
        transition: all 0.3s ease;
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 16px 40px rgba(255, 77, 36, 0.34);
    }

    .btn-primary:active {
        transform: translateY(0);
    }

    .btn-outline {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        padding: 0.95rem 1.6rem;
        border-radius: var(--radius-btn);
        border: 1px solid rgba(255, 255, 255, 0.16);
        color: #D6DAE0;
        background: rgba(255, 255, 255, 0.02);
        font-weight: 600;
        font-size: 1rem;
        line-height: 1;
        transition: all 0.3s ease;
    }

    .btn-outline:hover {
        border-color: var(--color-primary);
        color: #FF8A5C;
        transform: translateY(-2px);
    }

    .section-pad {
        padding: 5rem 0;
    }

    @media (min-width: 1024px) {
        .section-pad {
            padding: 6.5rem 0;
        }
    }

    .section-head {
        max-width: 800px;
        margin-bottom: 3rem;
    }

    .section-eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 0.9rem;
        font-weight: 700;
        color: #FF8A5C;
        margin-bottom: 0.8rem;
        letter-spacing: 0.08em;
    }

    .section-eyebrow::before {
        content: "";
        width: 18px;
        height: 2px;
        border-radius: 999px;
        background: linear-gradient(90deg, #FF4D24, #FFB800);
    }

    .section-title {
        font-size: clamp(2rem, 4vw, 2.8rem);
        font-weight: 800;
        line-height: 1.25;
        color: #fff;
        letter-spacing: -0.01em;
    }

    .section-desc {
        margin-top: 1rem;
        color: var(--text-body);
        font-size: 1.05rem;
        line-height: 1.75;
    }

    .hero-section {
        position: relative;
        background: #0B0D10;
        overflow: hidden;
        padding: 72px 0 56px;
        isolation: isolate;
    }

    .hero-section::before {
        content: "";
        position: absolute;
        inset: 0;
        background:
            linear-gradient(105deg, rgba(12, 14, 18, 0.98) 0%, rgba(12, 14, 18, 0.78) 45%, rgba(255, 77, 36, 0.08) 100%),
            url('/assets/images/backpic/back-1.webp') no-repeat center / cover;
        z-index: -2;
    }

    .hero-section::after {
        content: "";
        position: absolute;
        left: 8%;
        right: -20%;
        top: -30%;
        height: 120%;
        z-index: -1;
        background: linear-gradient(115deg, transparent 0%, rgba(255, 255, 255, 0.015) 44%, rgba(255, 184, 0, 0.05) 50%, transparent 58%);
        transform: rotate(0deg);
        pointer-events: none;
    }

    .hero-glow {
        position: absolute;
        z-index: -1;
        border-radius: 50%;
        pointer-events: none;
    }

    .hero-glow-one {
        width: 420px;
        height: 420px;
        right: 8%;
        bottom: -160px;
        background: radial-gradient(circle, rgba(255, 184, 0, 0.1) 0%, transparent 68%);
    }

    .hero-glow-two {
        width: 460px;
        height: 460px;
        left: -180px;
        top: -180px;
        background: radial-gradient(circle, rgba(255, 77, 36, 0.12) 0%, transparent 68%);
    }

    .hero-kicker {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 6px 14px;
        border-radius: 999px;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 184, 0, 0.2);
        color: rgba(255, 255, 255, 0.72);
        font-size: 0.85rem;
        font-weight: 600;
        margin-bottom: 1.2rem;
    }

    .hero-title {
        font-size: clamp(2.5rem, 6vw, 4.2rem);
        font-weight: 900;
        line-height: 1.12;
        letter-spacing: -0.02em;
        color: #fff;
        max-width: 780px;
    }

    .hero-title .brand-fade {
        background: linear-gradient(120deg, #FF4D24, #FFB800 90%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    .hero-title .heading-soft {
        color: #E8EAF0;
        display: inline;
    }

    .hero-desc {
        margin-top: 1.4rem;
        max-width: 620px;
        color: var(--text-body);
        font-size: 1.12rem;
        line-height: 1.8;
    }

    .hero-badges {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 12px;
        max-width: 520px;
        margin-top: 2rem;
    }

    .data-badge {
        display: inline-flex;
        flex-direction: column;
        padding: 0.75rem 1rem;
        border-radius: 1rem;
        background: rgba(255, 255, 255, 0.045);
        border: 1px solid rgba(255, 255, 255, 0.09);
        backdrop-filter: blur(8px);
    }

    .data-badge strong {
        font-family: "Arial", "Helvetica Neue", sans-serif;
        font-size: 1.65rem;
        font-weight: 800;
        line-height: 1.1;
        color: #fff;
        letter-spacing: -0.03em;
    }

    .data-badge strong em {
        color: #FFB800;
        font-style: normal;
    }

    .data-badge span {
        margin-top: 3px;
        color: var(--text-body);
        font-size: 0.84rem;
        line-height: 1.3;
    }

    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 14px;
        margin-top: 2.2rem;
    }

    .trust-line {
        display: flex;
        align-items: center;
        gap: 8px;
        color: var(--text-muted);
        font-size: 0.82rem;
        margin-top: 1rem;
    }

    .trust-line svg {
        flex-shrink: 0;
        color: #34D399;
    }

    .hero-visual {
        position: relative;
        border-radius: 26px;
        overflow: hidden;
        border: 1px solid rgba(255, 255, 255, 0.08);
        box-shadow: 0 28px 70px rgba(0, 0, 0, 0.44);
    }

    .hero-visual img {
        width: 100%;
        height: auto;
        min-height: 320px;
        object-fit: cover;
    }

    .hero-visual::after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, transparent 50%, rgba(12, 14, 18, 0.55) 100%);
    }

    .hero-float-card {
        position: absolute;
        left: 18px;
        bottom: 18px;
        right: 18px;
        z-index: 4;
        padding: 14px 16px;
        background: rgba(12, 14, 18, 0.72);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 18px;
        backdrop-filter: blur(14px);
    }

    .hero-float-card strong {
        display: block;
        color: #fff;
        font-weight: 700;
        font-size: 1rem;
    }

    .hero-float-card span {
        color: var(--text-body);
        font-size: 0.84rem;
        line-height: 1.5;
        display: block;
        margin-top: 2px;
    }

    .step-section {
        background: var(--bg-deep);
        position: relative;
    }

    .step-grid {
        display: grid;
        gap: 1.5rem;
    }

    .step-card {
        position: relative;
        height: 100%;
        background: var(--bg-card);
        border: 1px solid rgba(255, 255, 255, 0.06);
        border-radius: 24px;
        padding: 2rem 1.6rem;
        transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        overflow: hidden;
        margin-top: 0;
    }

    .step-card:hover {
        transform: translateY(-6px);
        border-color: rgba(255, 184, 0, 0.2);
        box-shadow: 0 16px 44px rgba(0, 0, 0, 0.4);
    }

    .step-no {
        display: inline-flex;
        align-items: center;
        height: 46px;
        padding: 0 0.85rem;
        background: rgba(255, 77, 36, 0.1);
        border: 1px solid rgba(255, 77, 36, 0.18);
        color: #FFB800;
        font-family: "Arial", "Helvetica Neue", sans-serif;
        font-size: 1.05rem;
        font-weight: 800;
        letter-spacing: 0.08em;
        border-radius: 999px;
    }

    .step-card h3 {
        margin-top: 1.2rem;
        font-size: 1.4rem;
        font-weight: 700;
        color: #fff;
    }

    .step-card p {
        margin-top: 0.5rem;
        color: var(--text-body);
        line-height: 1.75;
    }

    .matrix-section {
        position: relative;
        background:
            radial-gradient(circle at 90% 10%, rgba(255, 184, 0, 0.04), transparent 380px),
            var(--bg-deep);
    }

    .matrix-grid {
        display: grid;
        gap: 1.5rem;
    }

    .entry-card {
        background: var(--bg-card);
        border: 1px solid rgba(255, 255, 255, 0.06);
        border-radius: 24px;
        overflow: hidden;
        height: 100%;
        display: flex;
        flex-direction: column;
        transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
    }

    .entry-card:hover {
        transform: translateY(-7px);
        border-color: rgba(255, 184, 0, 0.22);
        box-shadow: var(--shadow-hover);
    }

    .entry-media {
        position: relative;
        aspect-ratio: 16 / 10;
        overflow: hidden;
        background: #0E1116;
    }

    .entry-media img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s ease;
    }

    .entry-card:hover .entry-media img {
        transform: scale(1.04);
    }

    .entry-label {
        position: absolute;
        left: 14px;
        top: 14px;
        z-index: 2;
        padding: 4px 12px;
        border-radius: 999px;
        font-size: 0.78rem;
        color: #fff;
        background: rgba(12, 14, 18, 0.68);
        border: 1px solid rgba(255, 255, 255, 0.14);
        backdrop-filter: blur(6px);
        line-height: 1.6;
    }

    .entry-body {
        display: flex;
        flex-direction: column;
        flex: 1;
        padding: 1.5rem;
    }

    .entry-body h3 {
        color: #fff;
        font-size: 1.22rem;
        font-weight: 700;
        line-height: 1.4;
    }

    .entry-body p {
        margin-top: 0.6rem;
        color: var(--text-body);
        line-height: 1.75;
        font-size: 0.96rem;
        flex: 1;
    }

    .entry-arrow {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: #FFB800;
        font-size: 0.94rem;
        font-weight: 700;
        padding-top: 1rem;
        margin-top: 0.4rem;
        transition: gap 0.25s ease;
    }

    .entry-arrow:hover {
        gap: 12px;
    }

    .feature-section {
        background: #11141A;
        border-top: 1px solid rgba(255, 255, 255, 0.04);
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }

    .feature-grid {
        display: grid;
        gap: 1.5rem;
    }

    .feature-card {
        background: var(--bg-card);
        border-radius: 24px;
        padding: 2rem 1.75rem;
        border: 1px solid rgba(255, 255, 255, 0.06);
        transition: all 0.35s ease;
    }

    .feature-card:hover {
        border-color: rgba(255, 77, 36, 0.28);
        box-shadow: 0 18px 44px rgba(0, 0, 0, 0.3);
        transform: translateY(-4px);
    }

    .feature-icon {
        width: 50px;
        height: 50px;
        border-radius: 16px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, rgba(255, 77, 36, 0.2), rgba(255, 184, 0, 0.14));
        border: 1px solid rgba(255, 184, 0, 0.18);
    }

    .feature-card h3 {
        margin-top: 1.2rem;
        font-size: 1.2rem;
        font-weight: 700;
        color: #fff;
    }

    .feature-card p {
        margin-top: 0.55rem;
        color: var(--text-body);
        font-size: 0.97rem;
        line-height: 1.8;
    }

    .faq-section {
        background: var(--bg-deep);
    }

    .faq-wrap {
        max-width: 820px;
    }

    .faq-item {
        background: var(--bg-card);
        border: 1px solid rgba(255, 255, 255, 0.06);
        border-radius: 20px;
        margin-bottom: 12px;
        overflow: hidden;
        transition: border-color 0.3s ease;
    }

    .faq-item[open] {
        border-color: rgba(255, 184, 0, 0.2);
    }

    .faq-item summary {
        list-style: none;
        display: flex;
        align-items: center;
        gap: 14px;
        padding: 18px 20px;
        min-height: 64px;
        cursor: pointer;
        font-weight: 700;
        font-size: 1.02rem;
        color: #E7EAF0;
        transition: background 0.3s ease;
    }

    .faq-item summary::-webkit-details-marker {
        display: none;
    }

    .faq-item summary .q-mark {
        width: 32px;
        height: 32px;
        border-radius: 50%;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 77, 36, 0.14);
        color: #FF8A5C;
        font-weight: 800;
        font-size: 0.9rem;
        flex-shrink: 0;
        transition: all 0.3s ease;
    }

    .faq-item[open] summary .q-mark {
        background: rgba(22, 224, 200, 0.12);
        color: #16E0C8;
        border: 1px solid rgba(22, 224, 200, 0.24);
    }

    .faq-item summary .faq-answer {
        margin-left: auto;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.04);
        color: #C2C8D1;
        transition: transform 0.3s ease, background 0.3s ease;
    }

    .faq-item[open] summary .faq-answer {
        transform: rotate(135deg);
        background: rgba(255, 184, 0, 0.14);
        color: #FFB800;
    }

    .faq-content {
        padding: 0 22px 20px 66px;
        color: var(--text-body);
        line-height: 1.85;
        font-size: 0.98rem;
    }

    .cta-panel-section {
        background: #0B0D10;
        position: relative;
        overflow: hidden;
    }

    .cta-panel-section::before {
        content: "";
        position: absolute;
        width: 560px;
        height: 560px;
        left: -220px;
        top: -240px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(255, 77, 36, 0.13) 0%, transparent 65%);
        pointer-events: none;
    }

    .cta-grid {
        display: grid;
        grid-template-columns: 1fr;
        gap: 2.5rem;
        align-items: center;
    }

    .cta-copy .section-title {
        font-size: clamp(2rem, 4vw, 2.9rem);
    }

    .cta-copy p {
        margin-top: 1.1rem;
        color: var(--text-body);
        line-height: 1.85;
        max-width: 480px;
    }

    .lead-form-card {
        border-radius: 26px;
        padding: 2rem;
        background: #fff;
        color: #14181F;
        box-shadow: 0 30px 70px rgba(0, 0, 0, 0.38);
    }

    .lead-form-card h3 {
        color: #14181F;
        font-size: 1.5rem;
        font-weight: 800;
    }

    .lead-form-card .form-note {
        color: #737B87;
        font-size: 0.86rem;
        margin-top: 0.35rem;
    }

    .lead-form {
        margin-top: 1.4rem;
    }

    .lead-form label {
        display: block;
        font-size: 0.9rem;
        font-weight: 700;
        color: #3D4552;
        margin-bottom: 6px;
    }

    .lead-form input,
    .lead-form select,
    .lead-form textarea {
        width: 100%;
        border: 1px solid #E2E5E9;
        background: #F7F8FA;
        border-radius: 12px;
        padding: 0.78rem 0.9rem;
        font-size: 0.95rem;
        font-family: inherit;
        color: #1D232C;
        transition: border-color 0.25s ease, box-shadow 0.25s ease;
    }

    .lead-form textarea {
        min-height: 92px;
        resize: vertical;
    }

    .lead-form input:focus,
    .lead-form select:focus,
    .lead-form textarea:focus {
        outline: none;
        border-color: #FF4D24;
        box-shadow: 0 0 0 4px rgba(255, 77, 36, 0.1);
    }

    .form-submit {
        width: 100%;
        height: 48px;
        border-radius: 12px;
        background: linear-gradient(135deg, #FF4D24, #FFB800);
        color: #fff;
        font-weight: 700;
        font-size: 1rem;
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .form-submit:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 28px rgba(255, 77, 36, 0.25);
    }

    .site-footer {
        background: #07080C;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        padding: 4rem 0 2rem;
    }

    .footer-desc {
        color: var(--text-body);
        font-size: 0.94rem;
        line-height: 1.8;
        max-width: 300px;
        margin-top: 1.1rem;
    }

    .footer-column h4 {
        color: #fff;
        font-size: 0.98rem;
        font-weight: 700;
        letter-spacing: 0.04em;
        margin-bottom: 1rem;
    }

    .footer-link {
        display: inline-block;
        color: #9EA5B0;
        line-height: 32px;
        font-size: 0.9rem;
        transition: color 0.25s ease, padding-left 0.25s ease;
        cursor: default;
    }

    a.footer-link {
        cursor: pointer;
    }

    a.footer-link:hover {
        color: #FFB800;
        padding-left: 4px;
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        margin-top: 2.5rem;
        padding-top: 1.5rem;
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        align-items: center;
        justify-content: space-between;
        color: #737A86;
        font-size: 0.85rem;
    }

    .footer-domain {
        color: #8A929E;
    }

    .safe-tip {
        color: rgba(255, 255, 255, 0.34);
        font-size: 0.78rem;
        line-height: 1.7;
    }

    @media (min-width: 640px) {
        .mega-panel {
            width: min(680px, calc(100vw - 2rem));
        }

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

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

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

    @media (min-width: 900px) {
        .matrix-grid {
            grid-template-columns: repeat(3, minmax(0, 1fr));
        }
    }

    @media (max-width: 1023px) {
        .mega-panel {
            position: static;
            transform: none;
            opacity: 1;
            visibility: visible;
            box-shadow: none;
            border-radius: 18px;
            width: auto;
            margin: 0.4rem 0 0.4rem 0.5rem;
            padding: 1rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: none;
        }

        .mega-panel::before {
            display: none;
        }

        .mega-preview {
            display: none;
        }

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

        .desktop-nav {
            display: none;
        }
    }

    @media (min-width: 1024px) {
        .desktop-nav {
            display: flex;
        }

        .mobile-toggle {
            display: none;
        }

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

        .feature-grid {
            grid-template-columns: repeat(3, minmax(0, 1fr));
        }

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

        .hero-section {
            padding: 96px 0 80px;
        }
    }

    @media (min-width: 1280px) {
        .hero-section {
            min-height: 560px;
        }
    }

    .line-clamp-2 {
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

/* roulang page: category2 */
:root {
  --color-primary: #FF4D24;
  --color-secondary: #FFB800;
  --color-accent: #16E0C8;
  --bg-deep: #0C0E12;
  --bg-card: #161A22;
  --bg-raised: #1E242E;
  --color-white: #FAFAFA;
  --color-body: #C2C8D1;
  --color-muted: #8A929E;
  --color-border: rgba(255, 255, 255, 0.08);
  --radius-card: 1.5rem;
  --radius-btn: 0.75rem;
  --radius-full: 9999px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.28);
  --shadow-hover: 0 12px 40px rgba(255, 77, 36, 0.14);
  --shadow-glow: 0 0 30px rgba(255, 77, 36, 0.35);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--bg-deep);
  color: var(--color-body);
  font-family: var(--font-sans);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

.container-page {
  width: 100%;
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.section-pad {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

@media (min-width: 1024px) {
  .section-pad {
    padding-top: 6.5rem;
    padding-bottom: 6.5rem;
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(12, 14, 18, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
  box-shadow: 0 4px 16px rgba(255, 77, 36, 0.28);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: 0;
  white-space: nowrap;
}

.brand-title .en {
  color: transparent;
  background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
  -webkit-background-clip: text;
  background-clip: text;
  font-weight: 900;
  display: inline-block;
  font-size: 1.34rem;
  line-height: 1;
}

.desktop-nav {
  height: 72px;
  align-items: stretch;
  gap: 0.25rem;
}

.nav-item {
  display: flex;
  align-items: center;
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 1rem;
  height: 100%;
  font-weight: 600;
  color: #C2C8D1;
  font-size: 0.95rem;
  transition: color 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover,
.nav-item.active-nav .nav-link {
  color: #FFB800;
}

.nav-item.active-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #FF4D24, #FFB800);
}

.nav-link svg {
  transition: transform 0.2s ease;
  opacity: 0.7;
}

.mega-wrap:hover .nav-link svg {
  transform: rotate(180deg);
}

.mega-panel {
  position: absolute;
  top: 100%;
  left: -11rem;
  min-width: 620px;
  padding: 1.5rem;
  border-radius: 1.5rem;
  background: rgba(26, 32, 40, 0.97);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 55px rgba(0, 0, 0, 0.42);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.25s ease;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-title {
  color: #fff;
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.mega-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.65rem 0.75rem;
  border-radius: 0.75rem;
  color: #C2C8D1;
  font-weight: 500;
  transition: all 0.2s ease;
}

.mega-link:hover {
  background: rgba(255, 255, 255, 0.06);
  color: #FFB800;
}

.header-preview-card {
  border-radius: 1.25rem;
  overflow: hidden;
  background: #12151C;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.2s ease;
}

.header-preview-card:hover {
  border-color: rgba(255, 184, 0, 0.28);
}

.mobile-link {
  display: block;
  padding: 0.8rem 1rem;
  color: #C2C8D1;
  font-weight: 600;
  border-radius: 0.75rem;
  transition: all 0.2s ease;
}

.mobile-link:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
}

.btn-primary,
.btn-outline,
.btn-border {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-weight: 700;
  border-radius: var(--radius-btn);
  transition: all 0.2s ease;
  cursor: pointer;
  line-height: 1.2;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
  color: #fff;
  box-shadow: 0 8px 24px rgba(255, 77, 36, 0.24);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(255, 77, 36, 0.35), 0 8px 24px rgba(255, 77, 36, 0.2);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #FAFAFA;
}

.btn-outline:hover {
  border-color: rgba(255, 184, 0, 0.65);
  color: #FFB800;
  background: rgba(255, 184, 0, 0.06);
}

.btn-accent {
  background: #16E0C8;
  color: #08110F;
  box-shadow: 0 8px 24px rgba(22, 224, 200, 0.18);
}

.btn-accent:hover {
  transform: translateY(-2px);
  background: #12E9D0;
}

.hero-background,
.hero-glow-gold,
.hero-glow-red {
  position: absolute;
  pointer-events: none;
}

.hero-background {
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
}

.hero-glow-gold {
  width: 600px;
  height: 600px;
  right: -150px;
  top: -160px;
  background: radial-gradient(circle, rgba(255, 184, 0, 0.14) 0%, transparent 65%);
}

.hero-glow-red {
  width: 450px;
  height: 450px;
  left: -120px;
  bottom: -120px;
  background: radial-gradient(circle, rgba(255, 77, 36, 0.16) 0%, transparent 62%);
}

.text-gradient {
  background: linear-gradient(135deg, #FF4D24, #FFB800);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.card-base {
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: all 0.25s ease;
}

.card-base:hover {
  border-color: rgba(255, 184, 0, 0.25);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.data-badge {
  display: inline-flex;
  flex-direction: column;
  padding: 0.55rem 0.9rem;
  border-radius: 1rem;
  line-height: 1.25;
}

.badge-glow {
  background: linear-gradient(135deg, rgba(255, 77, 36, 0.2), rgba(255, 184, 0, 0.24));
  border: 1px solid rgba(255, 184, 0, 0.24);
}

.badge-cool {
  background: rgba(22, 224, 200, 0.08);
  border: 1px solid rgba(22, 224, 200, 0.23);
}

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.3rem 0.9rem;
  border-radius: 999px;
  background: rgba(255, 77, 36, 0.12);
  border: 1px solid rgba(255, 184, 0, 0.18);
  color: #FFB800;
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  margin-bottom: 1rem;
}

.section-title {
  color: #fff;
  font-weight: 800;
  font-size: clamp(1.75rem, 3vw, 2.8rem);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.section-desc {
  max-width: 46rem;
  color: var(--color-body);
  font-size: 1rem;
  margin: 0 auto;
}

.promo-stairs .card-01,
.promo-stairs .card-02,
.promo-stairs .card-03 {
  height: 100%;
  position: relative;
  border-radius: 1.5rem;
  padding: 1.5rem;
}

.promo-stairs .card-01 {
  background: #171B25;
  border: 1px solid rgba(255, 255, 255, 0.06);
  opacity: 0.85;
}

.promo-stairs .card-02 {
  background: linear-gradient(135deg, #1A2028 0%, #2A200B 100%);
  border: 1px solid rgba(255, 184, 0, 0.22);
}

.promo-stairs .card-03 {
  background: #0F1A1F;
  border: 1px solid rgba(22, 224, 200, 0.18);
}

.promo-stairs .card-03:hover {
  border-color: rgba(22, 224, 200, 0.4);
}

.step-index {
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #FF4D24, #FFB800);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 1.2rem;
}

.acc-num {
  font-family: Arial, "Helvetica Neue", sans-serif;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.check-list li {
  position: relative;
  padding-left: 1.8rem;
  margin-bottom: 0.55rem;
  color: #C2C8D1;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: linear-gradient(135deg, #34D399, #16E0C8);
}

.shortcut-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.shortcut-card:hover .shortcut-img {
  transform: scale(1.05);
}

.flash-strip {
  position: relative;
  background: linear-gradient(135deg, #FF4D24, #FFB800);
  border-radius: 1.75rem;
  overflow: hidden;
  padding: 2rem 1.8rem;
}

.flash-strip::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 12px,
    rgba(255, 255, 255, 0.035) 12px,
    rgba(255, 255, 255, 0.035) 14px
  );
}

.countdown-box {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.5rem;
  max-width: 360px;
}

.countdown-num {
  background: #12151B;
  border-radius: 1rem;
  padding: 0.55rem 0.4rem;
  color: #fff;
  font-family: Arial, "Helvetica Neue", sans-serif;
  font-size: 1.3rem;
  font-weight: 800;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.countdown-label {
  color: #240800;
  font-weight: 700;
  font-size: 0.65rem;
  margin-top: 0.25rem;
  text-align: center;
}

.faq-card {
  background: #151921;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 1.5rem;
  padding: 1.1rem 1.4rem;
  transition: all 0.2s ease;
}

.faq-card[open] {
  border-color: rgba(255, 184, 0, 0.3);
  background: #181C25;
}

.faq-card summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 56px;
  font-weight: 700;
  color: #fff;
  font-size: 1rem;
}

.faq-card summary::-webkit-details-marker {
  display: none;
}

.faq-plus {
  margin-left: auto;
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  transition: transform 0.25s ease;
}

.faq-card[open] .faq-plus {
  transform: rotate(45deg);
  color: #FFB800;
}

.faq-card .faq-answer {
  color: #C2C8D1;
  padding-left: calc(30px + 1rem);
  padding-bottom: 0.2rem;
}

.cta-gradient-border {
  background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
  padding: 1px;
  border-radius: 2rem;
}

.cta-inner-rounded {
  background: #0E1118;
  border-radius: calc(2rem - 1px);
}

.footer-link {
  color: #8A929E;
  transition: color 0.2s ease;
  line-height: 2.2rem;
  cursor: default;
}

a.footer-link:hover,
.footer-link-hover:hover {
  color: #FFB800 !important;
}

.req-note {
  color: #8A929E;
  font-size: 0.75rem;
  line-height: 1.6;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 1rem;
  max-width: 68rem;
  margin: 0 auto;
  margin-top: 1.6rem;
}

.hide-scrollbar {
  scrollbar-width: none;
}

.hide-scrollbar::-webkit-scrollbar {
  display: none;
}

.nav-toggle-line {
  width: 20px;
  height: 2px;
  border-radius: 4px;
  background: #fff;
  display: block;
  margin: 4px auto;
  transition: all 0.2s ease;
}

@media (min-width: 1024px) {
  .mobile-nav-trigger {
    display: none;
  }
}

@media (max-width: 1023.98px) {
  .desktop-nav, .nav-right-cta {
    display: none;
  }
}

@media (max-width: 640px) {
  .mega-panel {
    position: static;
    min-width: 0;
    box-shadow: none;
    top: auto;
    left: auto;
    margin: 0.5rem 0;
  }
}

/* roulang page: category3 */
:root {
        --color-primary: #FF4D24;
        --color-secondary: #FFB800;
        --color-accent: #16E0C8;
        --bg-deep: #0C0E12;
        --bg-card: #161A22;
        --bg-raised: #1E242E;
        --text-light: #FAFAFA;
        --text-body: #C2C8D1;
        --text-muted: #8A929E;
        --radius-card: 1.5rem;
        --radius-btn: .75rem;
        --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font-sans);
        background: var(--bg-deep);
        color: var(--text-body);
        line-height: 1.75;
        -webkit-font-smoothing: antialiased;
    }

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

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

    ul,
    ol {
        list-style: none;
    }

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

    :focus-visible {
        outline: 2px solid var(--color-secondary);
        outline-offset: 3px;
    }

    ::selection {
        background: rgba(255, 77, 36, .28);
        color: #fff;
    }

    .container-page {
        width: 100%;
        max-width: 80rem;
        margin-left: auto;
        margin-right: auto;
        padding-left: 1rem;
        padding-right: 1rem;
    }

    @media (min-width: 768px) {
        .container-page {
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }
    }

    .site-header {
        position: sticky;
        position: -webkit-sticky;
        top: 0;
        z-index: 80;
        background: rgba(12, 14, 18, .82);
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid rgba(255, 255, 255, .08);
    }

    .logo-mark {
        width: 38px;
        height: 38px;
        flex: 0 0 auto;
        border-radius: 12px;
        background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 8px 24px rgba(255, 77, 36, .26);
    }

    .brand-title {
        font-size: 1.28rem;
        font-weight: 800;
        color: #fff;
        line-height: 1;
        white-space: nowrap;
    }

    .brand-title .en {
        color: #FFB800;
        font-size: 1.38em;
        display: inline-block;
        margin-right: 2px;
    }

    .desktop-nav {
        align-items: stretch;
        margin-left: .5rem;
    }

    .nav-item {
        position: relative;
        display: flex;
        align-items: center;
    }

    .nav-link {
        position: relative;
        display: inline-flex;
        align-items: center;
        gap: 4px;
        padding: 26px 14px;
        color: var(--text-body);
        font-size: .95rem;
        font-weight: 500;
        white-space: nowrap;
        transition: color .2s ease;
    }

    .nav-link:hover {
        color: #fff;
    }

    .nav-link::after {
        content: "";
        position: absolute;
        left: 12px;
        right: 12px;
        bottom: 18px;
        height: 2px;
        border-radius: 2px;
        background: linear-gradient(90deg, #FF4D24 0%, #FFB800 100%);
        opacity: 0;
        transform: scaleX(.5);
        transition: opacity .25s, transform .25s;
    }

    .nav-link:hover::after,
    .active-nav .nav-link::after {
        opacity: .75;
        transform: scaleX(1);
    }

    .active-nav .nav-link {
        color: #fff;
        font-weight: 700;
    }

    .mega-wrap {
        position: relative;
    }

    .mega-panel {
        position: absolute;
        left: 0;
        top: calc(100% + 6px);
        width: 600px;
        max-width: calc(100vw - 32px);
        background: #10141B;
        border: 1px solid rgba(255, 255, 255, .09);
        border-radius: 20px;
        padding: 22px;
        box-shadow: 0 24px 70px rgba(0, 0, 0, .48);
        opacity: 0;
        visibility: hidden;
        transform: translateY(8px);
        transition: opacity .22s, transform .22s, visibility .22s;
        z-index: 90;
    }

    .mega-wrap:hover .mega-panel,
    .mega-wrap:focus-within .mega-panel {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .mega-title {
        font-size: .78rem;
        font-weight: 700;
        letter-spacing: .08em;
        color: var(--text-muted);
        margin-bottom: 12px;
    }

    .mega-link {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 12px;
        padding: 10px 12px;
        border-radius: 12px;
        color: var(--text-body);
        font-size: .95rem;
        transition: background .2s, color .2s;
    }

    .mega-link:hover {
        background: rgba(255, 255, 255, .05);
        color: #FFB800;
    }

    .mega-note {
        padding: 14px;
        border-radius: 16px;
        background: linear-gradient(135deg, rgba(255, 77, 36, .1), rgba(255, 184, 0, .05));
        border: 1px solid rgba(255, 184, 0, .14);
        min-height: 150px;
        display: flex;
        flex-direction: column;
        justify-content: flex-end;
    }

    .mobile-menu {
        position: absolute;
        top: calc(100% + 10px);
        left: 16px;
        right: 16px;
        z-index: 70;
        background: #10141B;
        border: 1px solid rgba(255, 255, 255, .09);
        border-radius: 24px;
        padding: 12px;
        box-shadow: 0 24px 60px rgba(0, 0, 0, .5);
    }

    .mobile-link {
        display: block;
        padding: 14px 16px;
        border-radius: 14px;
        color: var(--text-body);
        font-weight: 600;
        transition: background .2s, color .2s;
    }

    .mobile-link:hover {
        background: rgba(255, 255, 255, .05);
        color: #FFB800;
    }

    .mobile-link.active {
        background: rgba(255, 77, 36, .1);
        color: #fff;
    }

    .btn-primary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        white-space: nowrap;
        border: none;
        cursor: pointer;
        background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
        color: #fff;
        font-weight: 700;
        border-radius: 12px;
        padding: 14px 26px;
        box-shadow: 0 10px 30px rgba(255, 77, 36, .24);
        transition: transform .2s, box-shadow .25s, opacity .2s;
    }

    .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 0 0 3px rgba(255, 77, 36, .12), 0 16px 38px rgba(255, 77, 36, .28);
    }

    .btn-primary:active {
        transform: translateY(0) scale(.98);
    }

    .btn-outline {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        white-space: nowrap;
        background: transparent;
        color: #FAFAFA;
        font-weight: 600;
        border: 1px solid rgba(255, 255, 255, .22);
        border-radius: 12px;
        padding: 13px 24px;
        transition: border-color .2s, color .2s, background .2s, transform .2s;
    }

    .btn-outline:hover {
        border-color: #FFB800;
        color: #FFB800;
        background: rgba(255, 184, 0, .05);
        transform: translateY(-1px);
    }

    .btn-outline:active {
        transform: scale(.98);
    }

    .badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 6px 14px;
        border-radius: 999px;
        background: rgba(255, 77, 36, .1);
        border: 1px solid rgba(255, 77, 36, .22);
        color: #FFB8A6;
        font-size: .82rem;
        font-weight: 600;
    }

    .tag {
        display: inline-flex;
        align-items: center;
        border-radius: 999px;
        padding: 4px 12px;
        font-size: .76rem;
        background: rgba(255, 184, 0, .1);
        color: #FFCF70;
        border: 1px solid rgba(255, 184, 0, .16);
    }

    .data-badge {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        border-radius: 18px;
        padding: 12px 18px;
        background: rgba(255, 255, 255, .05);
        border: 1px solid rgba(255, 255, 255, .08);
        -webkit-backdrop-filter: blur(8px);
        backdrop-filter: blur(8px);
    }

    .data-badge .num {
        color: #fff;
        font-family: "Arial", "Helvetica Neue", sans-serif;
        font-weight: 900;
        font-size: 1.4rem;
        line-height: 1;
        letter-spacing: -.02em;
    }

    .data-badge .num-warm {
        background: linear-gradient(135deg, #FF4D24, #FFB800);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    .data-badge small {
        color: var(--text-muted);
        font-size: .82rem;
        line-height: 1.3;
    }

    .media-frame {
        position: relative;
        aspect-ratio: 16 / 9;
        border-radius: 18px;
        overflow: hidden;
        background:
            linear-gradient(135deg, rgba(255, 255, 255, .04), rgba(0, 0, 0, .2));
    }

    .media-frame::before {
        content: "";
        position: absolute;
        inset: 0;
        background-image:
            linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px),
            linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
        background-size: 22px 22px;
        opacity: 0;
        z-index: 1;
        transition: opacity .3s;
    }

    .media-frame img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform .5s ease;
    }

    .matrix-card:hover .media-frame img {
        transform: scale(1.04);
    }

    .matrix-card:hover .media-frame::before {
        opacity: .6;
    }

    .content-card {
        background: #161A22;
        border: 1px solid rgba(255, 255, 255, .06);
        border-radius: 24px;
        padding: 24px;
        transition: transform .25s, border-color .25s, box-shadow .25s;
    }

    .content-card:hover {
        transform: translateY(-3px);
        border-color: rgba(255, 184, 0, .3);
        box-shadow: 0 16px 40px rgba(0, 0, 0, .3), 0 0 0 1px rgba(255, 184, 0, .08);
    }

    .section-label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: #FF8A66;
        font-weight: 700;
        font-size: .85rem;
        letter-spacing: .04em;
    }

    .section-label::before {
        content: "";
        width: 26px;
        height: 2px;
        border-radius: 2px;
        background: linear-gradient(90deg, #FF4D24, #FFB800);
    }

    .section-title {
        color: #fff;
        font-size: 2.2rem;
        font-weight: 800;
        line-height: 1.25;
        letter-spacing: -0.01em;
        margin-top: 10px;
    }

    @media (max-width: 767px) {
        .section-title {
            font-size: 1.65rem;
        }
    }

    .text-gradient-warm {
        background: linear-gradient(90deg, #FF4D24 0%, #FFB800 100%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

    .hth-word {
        background: linear-gradient(120deg, #FF6A40 0%, #FFB800 100%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
        font-size: 1.05em;
        display: inline-block;
    }

    .line-clamp-2 {
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .link-more {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-size: .92rem;
        font-weight: 700;
        color: #FFB800;
        transition: gap .2s, color .2s;
    }

    .link-more:hover {
        gap: 10px;
        color: #FFD485;
    }

    .hero-chip {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        border-radius: 999px;
        padding: 6px 14px;
        background: rgba(12, 14, 18, .66);
        border: 1px solid rgba(255, 255, 255, .1);
        -webkit-backdrop-filter: blur(8px);
        backdrop-filter: blur(8px);
        color: #fff;
        font-size: .8rem;
        font-weight: 600;
    }

    .accordion-item {
        background: #161A22;
        border: 1px solid rgba(255, 255, 255, .06);
        border-radius: 18px;
        overflow: hidden;
        margin-bottom: 12px;
        transition: border-color .2s;
    }

    .accordion-item[open] {
        border-color: rgba(255, 184, 0, .22);
    }

    .accordion-item summary {
        list-style: none;
        display: flex;
        align-items: center;
        gap: 14px;
        min-height: 60px;
        padding: 12px 20px;
        cursor: pointer;
        color: #fff;
        font-weight: 700;
        transition: background .2s;
    }

    .accordion-item summary::-webkit-details-marker {
        display: none;
    }

    .accordion-item[open] summary {
        background: rgba(255, 77, 36, .06);
    }

    .q-badge {
        flex: 0 0 auto;
        width: 38px;
        height: 38px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(255, 77, 36, .12);
        color: #FF7A55;
        font-weight: 900;
        font-size: .92rem;
        transition: background .2s, color .2s;
    }

    .accordion-item[open] .q-badge {
        background: rgba(22, 224, 200, .12);
        color: #16E0C8;
    }

    .plus-icon {
        margin-left: auto;
        color: #8A929E;
        transition: transform .3s, color .3s;
        flex: 0 0 auto;
    }

    .accordion-item[open] .plus-icon {
        transform: rotate(135deg);
        color: #FFB800;
    }

    .faq-answer {
        padding: 4px 24px 24px 72px;
        color: #C2C8D1;
        font-size: .95rem;
        line-height: 1.85;
    }

    @media (max-width: 640px) {
        .faq-answer {
            padding-left: 22px;
        }
    }

    .form-card {
        background: #F7F8FA;
        border-radius: 26px;
        padding: 28px;
        box-shadow: 0 24px 70px rgba(0, 0, 0, .3);
    }

    .form-card label {
        display: block;
        color: #20242A;
        font-size: .82rem;
        font-weight: 700;
        margin-bottom: 6px;
    }

    .field-input {
        width: 100%;
        background: #fff;
        border: 1px solid #D7DBE1;
        border-radius: 12px;
        padding: 11px 14px;
        font-size: .95rem;
        color: #1A1E23;
        transition: border-color .2s, box-shadow .2s;
    }

    .field-input:focus {
        outline: none;
        border-color: #FF4D24;
        box-shadow: 0 0 0 3px rgba(255, 77, 36, .14);
    }

    .field-input::placeholder {
        color: #9AA2AC;
    }

    .footer-link {
        color: #8A929E;
        line-height: 32px;
        transition: color .2s;
        cursor: default;
    }

    a.footer-link {
        cursor: pointer;
    }

    a.footer-link:hover {
        color: #FFB800;
    }

    .legal-line {
        color: rgba(138, 146, 158, .8);
        font-size: .78rem;
        line-height: 1.7;
    }

/* roulang page: category4 */
:root {
    --color-primary: #FF4D24;
    --color-secondary: #FFB800;
    --color-accent: #16E0C8;
    --bg-deep: #0C0E12;
    --bg-card: #161A22;
    --bg-raised: #1E242E;
    --text-primary: #FAFAFA;
    --text-body: #C2C8D1;
    --text-muted: #8A929E;
    --radius-card: 24px;
    --radius-btn: 12px;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
    --section-y: 5rem;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font-sans);
    background-color: var(--bg-deep);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    line-height: 1.6;
  }

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

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

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

  .container-page {
    width: 100%;
    max-width: 80rem;
    margin-inline: auto;
    padding-inline: 1rem;
  }

  @media (min-width: 640px) {
    .container-page {
      padding-inline: 1.5rem;
    }
  }

  @media (min-width: 1280px) {
    .container-page {
      padding-inline: 2rem;
    }
  }

  .section-base {
    padding-top: var(--section-y);
    padding-bottom: var(--section-y);
  }

  .line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .text-accent {
    color: var(--color-secondary);
  }

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

  .text-body {
    color: var(--text-body);
  }

  /* 品牌Logo */
  .logo-mark {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
    box-shadow: 0 6px 18px rgba(255, 77, 36, 0.28);
    flex: none;
  }

  .brand-title {
    display: inline-flex;
    align-items: baseline;
    gap: 0.18rem;
    font-size: 1.28rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    white-space: nowrap;
  }

  .brand-title .en {
    font-size: 1.12em;
    background: linear-gradient(135deg, #FF4D24 20%, #FFB800 90%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  /* 顶部导航 */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(12, 14, 18, 0.86);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .desktop-nav {
    align-items: stretch;
    gap: 2rem;
    margin-left: 1.25rem;
  }

  .nav-item {
    position: relative;
    display: flex;
    align-items: center;
  }

  .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-body);
    height: 72px;
    padding-inline: 0.15rem;
    transition: color 0.25s ease;
  }

  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 3px;
    border-radius: 999px 999px 0 0;
    background: linear-gradient(90deg, #FF4D24, #FFB800);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.25s ease;
  }

  .nav-item:hover .nav-link,
  .nav-item:focus-within .nav-link,
  .nav-item.is-active .nav-link {
    color: var(--text-primary);
  }

  .nav-item:hover .nav-link::after,
  .nav-item:focus-within .nav-link::after,
  .nav-item.is-active .nav-link::after {
    transform: scaleX(1);
  }

  .outer-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.16);
    padding: 0.5rem 0.9rem;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
    transition: border-color 0.25s ease, background 0.25s ease, color 0.25s ease;
  }

  .outer-cta:hover {
    border-color: rgba(255, 184, 0, 0.5);
    color: var(--color-secondary);
    background: rgba(255, 184, 0, 0.06);
  }

  .mega-wrap .mega-panel {
    display: none;
    position: absolute;
    left: -1.25rem;
    top: calc(100% + 0.4rem);
    width: 620px;
    background: #141920;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 1.5rem;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
    z-index: 40;
  }

  .mega-wrap:hover .mega-panel,
  .mega-wrap:focus-within .mega-panel {
    display: block;
    animation: panelFade 0.22s ease;
  }

  @keyframes panelFade {
    from {
      opacity: 0;
      transform: translateY(6px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  .mega-title {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.9rem;
  }

  .mega-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.65rem 0.8rem;
    border-radius: 12px;
    color: var(--text-body);
    transition: background 0.2s ease, color 0.2s ease;
  }

  .mega-link:hover {
    color: var(--text-primary);
    background: rgba(255, 184, 0, 0.08);
  }

  .mega-preview {
    display: flex;
    gap: 0.9rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
  }

  .mega-preview img {
    width: 96px;
    height: 80px;
    object-fit: cover;
    border-radius: 12px;
    flex: none;
  }

  .tag {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    background: rgba(255, 77, 36, 0.12);
    color: #FFB27A;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.65rem;
  }

  .mobile-menu {
    display: none;
    background: #0F1218;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0.5rem 0 1rem;
  }

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

  .mobile-menu-link {
    display: block;
    padding: 0.8rem 0.9rem;
    border-radius: 12px;
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--text-body);
  }

  .mobile-menu-link.is-active {
    color: var(--text-primary);
    background: rgba(255, 184, 0, 0.08);
  }

  .hamburger {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
    color: #fff;
  }

  /* Button */
  .btn-gradient,
  .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: var(--radius-btn);
    padding: 0.85rem 1.6rem;
    font-weight: 700;
    font-size: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    white-space: nowrap;
  }

  .btn-gradient {
    background: linear-gradient(135deg, #FF4D24 0%, #FFB800 100%);
    color: #141210;
    box-shadow: 0 8px 28px rgba(255, 77, 36, 0.25);
  }

  .btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(255, 77, 36, 0.35);
  }

  .btn-gradient:active {
    transform: translateY(0);
  }

  .btn-ghost {
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #fff;
    background: rgba(255, 255, 255, 0.04);
  }

  .btn-ghost:hover {
    border-color: var(--color-secondary);
    color: var(--color-secondary);
    box-shadow: 0 0 22px rgba(255, 184, 0, 0.12);
  }

  .btn-ghost:active {
    transform: scale(0.98);
  }

  a:focus-visible,
  button:focus-visible,
  summary:focus-visible {
    outline: 3px solid rgba(255, 184, 0, 0.6);
    outline-offset: 3px;
    border-radius: 8px;
  }

  /* Hero */
  .hero-background {
    position: relative;
    overflow: hidden;
    background-image:
      linear-gradient(100deg, rgba(12, 14, 18, 0.97) 0%, rgba(12, 14, 18, 0.85) 50%, rgba(12, 14, 18, 0.45) 100%),
      url("/assets/images/backpic/back-1.webp");
    background-size: cover;
    background-position: center;
  }

  .hero-background::before {
    content: "";
    position: absolute;
    top: -140px;
    right: -140px;
    width: 620px;
    height: 620px;
    background: radial-gradient(circle, rgba(255, 184, 0, 0.12) 0%, transparent 65%);
    pointer-events: none;
  }

  .hero-background::after {
    content: "";
    position: absolute;
    left: -140px;
    bottom: -160px;
    width: 480px;
    height: 480px;
    background: radial-gradient(circle, rgba(255, 77, 36, 0.16) 0%, transparent 62%);
    pointer-events: none;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 999px;
    padding: 0.45rem 0.9rem;
    font-size: 0.85rem;
    color: var(--text-body);
    font-weight: 600;
    margin-bottom: 1.5rem;
  }

  .hero-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(135deg, #FF4D24, #FFB800);
  }

  .hero-title {
    font-size: 2.6rem;
    line-height: 1.16;
    font-weight: 900;
    letter-spacing: -0.02em;
  }

  .hero-title-brand {
    display: block;
    font-size: 1.05em;
    background: linear-gradient(135deg, #FF4D24 20%, #FFB800 80%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  @media (min-width: 768px) {
    .hero-title {
      font-size: 3.7rem;
    }
  }

  @media (min-width: 1280px) {
    .hero-title {
      font-size: 4.3rem;
    }
  }

  .data-badge {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    background: rgba(22, 26, 34, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 0.65rem 1rem;
    min-width: 110px;
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
  }

  .data-badge strong {
    font-family: "Arial", "Helvetica Neue", sans-serif;
    font-size: 1.45rem;
    line-height: 1.1;
    font-weight: 900;
    background: linear-gradient(135deg, #FF4D24, #FFB800);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .data-badge span {
    color: var(--text-body);
    font-size: 0.78rem;
    margin-top: 0.15rem;
  }

  .membership-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 28px;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.4);
    overflow: hidden;
  }

  .membership-card img {
    width: 100%;
    height: 280px;
    object-fit: cover;
    opacity: 0.4;
  }

  @media (max-width: 1023px) {
    .membership-card img {
      max-height: 260px;
    }
  }

  .mini-metric {
    display: inline-flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.07);
    padding: 0.7rem 1rem;
    border-radius: 16px;
  }

  .mini-metric strong {
    font-size: 1.15rem;
    color: var(--color-accent);
  }

  .mini-metric span {
    font-size: 0.75rem;
    color: var(--text-muted);
  }

  /* section title */
  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-secondary);
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
  }

  .section-eyebrow::before {
    content: "";
    width: 22px;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, #FF4D24, #FFB800);
  }

  .section-title {
    font-size: 1.9rem;
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: #fff;
  }

  .section-sub {
    color: var(--text-muted);
    margin-top: 0.8rem;
    max-width: 640px;
  }

  @media (min-width: 768px) {
    .section-title {
      font-size: 2.4rem;
    }
  }

  /* plan cards */
  .plan-card {
    position: relative;
    background: #161A22;
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 28px;
    padding: 1.8rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
  }

  .plan-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 184, 0, 0.25);
    box-shadow: 0 12px 40px rgba(255, 77, 36, 0.12);
  }

  .plan-card.is-recommended {
    background: linear-gradient(160deg, #1A2028 0%, #2A200B 100%);
    border-color: rgba(255, 184, 0, 0.28);
  }

  .recommend-tag {
    position: absolute;
    right: 1.4rem;
    top: -0.8rem;
    background: linear-gradient(135deg, #FFD24D 0%, #FFB800 100%);
    color: #1a1106;
    font-size: 0.78rem;
    font-weight: 800;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    box-shadow: 0 8px 18px rgba(255, 184, 0, 0.24);
  }

  .plan-level {
    display: inline-flex;
    align-self: flex-start;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    background: rgba(255, 77, 36, 0.1);
    color: #FF9B70;
    font-size: 0.8rem;
    font-weight: 700;
  }

  .plan-title {
    font-size: 1.35rem;
    font-weight: 800;
    margin-top: 1rem;
    color: #fff;
  }

  .plan-desc {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.7;
    margin-top: 0.5rem;
  }

  .plan-list {
    margin-top: 1.3rem;
    display: grid;
    gap: 0.65rem;
  }

  .plan-list li {
    display: flex;
    gap: 0.6rem;
    align-items: flex-start;
    color: var(--text-body);
    font-size: 0.92rem;
    line-height: 1.55;
  }

  .check-icon {
    color: #34D399;
    flex: none;
    margin-top: 0.2rem;
  }

  .plain-icon {
    color: #F87171;
    flex: none;
    margin-top: 0.2rem;
  }

  /* cover matrix */
  .perks-card {
    display: block;
    background: #161A22;
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 26px;
    overflow: hidden;
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
  }

  .perks-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 184, 0, 0.24);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.25);
  }

  .perks-card .cover-wrap {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #11151B;
  }

  .perks-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
  }

  .perks-card:hover img {
    transform: scale(1.04);
  }

  .perks-body {
    padding: 1.2rem 1.3rem 1.3rem;
  }

  .perks-card h3 {
    font-size: 1.13rem;
    font-weight: 800;
    color: #fff;
    margin-top: 0.55rem;
  }

  .perks-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.65;
    margin-top: 0.45rem;
  }

  .perks-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--color-secondary);
    font-weight: 700;
    font-size: 0.9rem;
    margin-top: 1rem;
    transition: gap 0.2s ease;
  }

  .perks-card:hover .perks-arrow {
    gap: 0.55rem;
  }

  .perks-arrow svg {
    width: 15px;
    height: 15px;
  }

  /* process */
  .process-card {
    position: relative;
    background: #12161D;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 24px;
    padding: 1.5rem;
    transition: border-color 0.25s ease, transform 0.25s ease;
  }

  .process-card:hover {
    border-color: rgba(255, 184, 0, 0.18);
    transform: translateY(-3px);
  }

  .process-step {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    font-weight: 900;
    font-family: "Arial", sans-serif;
    font-size: 1.1rem;
    background: linear-gradient(135deg, #FF4D24, #FFB800);
    color: #191611;
    margin-bottom: 1rem;
  }

  /* FAQ */
  .faq-item {
    background: #12161D;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    padding: 0.2rem 1.2rem;
    transition: border-color 0.22s ease, background 0.22s ease;
  }

  .faq-item:hover {
    border-color: rgba(255, 184, 0, 0.15);
  }

  .faq-item[open] {
    background: #151A22;
    border-color: rgba(255, 184, 0, 0.18);
  }

  .faq-item summary {
    list-style: none;
    min-height: 64px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    color: #fff;
    font-weight: 700;
  }

  .faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-q {
    width: 30px;
    height: 30px;
    flex: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: rgba(255, 77, 36, 0.16);
    color: #FF9E7F;
    font-size: 0.85rem;
    font-weight: 900;
  }

  .faq-item[open] .faq-q {
    background: rgba(22, 224, 200, 0.12);
    color: var(--color-accent);
  }

  .faq-icon {
    width: 24px;
    height: 24px;
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-weight: 700;
    transition: transform 0.28s ease, background 0.28s ease;
  }

  .faq-item[open] .faq-icon {
    transform: rotate(45deg);
    background: rgba(255, 184, 0, 0.1);
    color: var(--color-secondary);
  }

  .faq-body {
    color: var(--text-body);
    font-size: 0.96rem;
    line-height: 1.8;
    padding: 0 0 1.1rem 3.6rem;
  }

  /* CTA */
  .cta-section {
    position: relative;
    overflow: hidden;
    background:
      radial-gradient(circle at 20% 20%, rgba(255, 184, 0, 0.14), transparent 45%),
      radial-gradient(circle at 80% 90%, rgba(255, 77, 36, 0.15), transparent 50%),
      linear-gradient(120deg, rgba(12, 14, 18, 0.98), rgba(20, 18, 16, 0.92)),
      url("/assets/images/backpic/back-3.webp");
    background-size: cover;
    background-position: center;
  }

  ::selection {
    background: rgba(255, 184, 0, 0.25);
    color: #fff;
  }