/* roulang page: index */
:root {
        --bg-base: #0C0F18;
        --bg-section: #F3F5F9;
        --bg-card: #FFFFFF;
        --primary-light: #9D8CFF;
        --primary-base: #6C4DF6;
        --primary-deep: #4120D9;
        --neon-line: #00E5FF;
        --accent-bright: #F5B744;
        --danger-flag: #E34F4F;
        --text-header: #F0F2F8;
        --text-body: #232734;
        --text-sub: #626A7C;
        --border-line: #E0E3EB;
        --radius-card: 16px;
        --radius-ctr: 8px;
    }
    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        margin: 0;
        font-family: system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
        background: var(--bg-base);
        color: var(--text-body);
        line-height: 1.75;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    a {
        color: inherit;
        text-decoration: none;
        transition: color 0.2s ease;
    }
    button {
        font-family: inherit;
        cursor: pointer;
    }
    input,
    select {
        font-family: inherit;
    }

    .container-site {
        max-width: 1280px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 1.25rem;
        padding-right: 1.25rem;
    }
    @media (min-width: 640px) {
        .container-site {
            padding-left: 2rem;
            padding-right: 2rem;
        }
    }

    /* ===== top navigation ===== */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        background: rgba(11, 13, 21, 0.84);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .site-header::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 2px;
        background: linear-gradient(90deg, #00E5FF, #6C4DF6, transparent 60%);
        z-index: 1;
        pointer-events: none;
    }
    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding-top: 1rem;
        padding-bottom: 1rem;
        column-gap: 1.5rem;
        position: relative;
    }
    .logo-area {
        display: flex;
        align-items: center;
        column-gap: 0.65rem;
        flex-shrink: 0;
    }
    .logo-mark {
        width: 40px;
        height: 40px;
        border-radius: 10px;
        background: linear-gradient(135deg, #6C4DF6 0%, #4120D9 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 800;
        font-size: 22px;
        color: #fff;
        box-shadow: 0 4px 14px rgba(108, 77, 246, 0.30);
        position: relative;
    }
    .logo-mark::after {
        content: '';
        position: absolute;
        right: 4px;
        top: 4px;
        width: 6px;
        height: 6px;
        border-radius: 999px;
        background: #00E5FF;
        box-shadow: 0 0 8px rgba(0, 229, 255, 0.80);
    }
    .logo-text {
        color: var(--text-header);
        font-weight: 600;
        font-size: 18px;
        line-height: 1.2;
        letter-spacing: 0.02em;
        display: flex;
        flex-direction: column;
    }
    .logo-text small {
        font-size: 12px;
        font-weight: 400;
        color: #8891A5;
        letter-spacing: 0.08em;
    }
    .nav-menu {
        display: flex;
        align-items: center;
        column-gap: 0.25rem;
        margin: 0;
        padding: 0;
        list-style: none;
    }
    .nav-menu a {
        display: inline-block;
        padding: 0.68rem 0.90rem;
        color: #B6BCCA;
        font-size: 15px;
        letter-spacing: 0.02em;
        font-weight: 400;
        border-radius: 8px;
        position: relative;
        transition: color .2s, background .2s, text-shadow .2s;
    }
    .nav-menu a:hover {
        color: var(--text-header);
        background: rgba(255, 255, 255, 0.04);
        text-shadow: 0 0 8px rgba(0, 229, 255, 0.30);
    }
    .nav-menu a.active {
        color: #FFFFFF;
        text-shadow: 0 0 8px rgba(0, 229, 255, 0.80);
    }
    .nav-menu a.active::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 16px;
        right: 16px;
        height: 2px;
        background: #00E5FF;
        box-shadow: 0 0 10px rgba(0, 229, 255, 0.60);
        border-radius: 2px;
    }
    .header-cta {
        display: inline-flex;
        align-items: center;
        column-gap: 0.4rem;
        background: #6C4DF6;
        color: #FFFFFF;
        font-weight: 600;
        font-size: 15px;
        line-height: 1;
        padding: 0.72rem 1.3rem;
        border-radius: 8px;
        border: 1px solid transparent;
        transition: box-shadow .22s, background .22s, transform .22s;
        white-space: nowrap;
        flex-shrink: 0;
    }
    .header-cta:hover {
        background: #4120D9;
        box-shadow: 0 0 12px rgba(0, 229, 255, 0.40);
        transform: translateY(-1px);
    }
    .burger-menu {
        display: none;
        flex-direction: column;
        justify-content: center;
        width: 44px;
        height: 44px;
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 8px;
        align-items: center;
        gap: 5px;
        background: transparent;
    }
    .burger-menu span {
        display: block;
        width: 20px;
        height: 2px;
        border-radius: 2px;
        background: #E7EAF1;
        transition: transform .25s, opacity .25s;
    }
    .burger-menu.is-open span:nth-of-type(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .burger-menu.is-open span:nth-of-type(2) {
        opacity: 0;
    }
    .burger-menu.is-open span:nth-of-type(3) {
        transform: translateY(-7px) rotate(-45deg);
    }
    .mobile-nav {
        display: none;
        background: #0B0D15;
        border-top: 1px solid rgba(255, 255, 255, 0.07);
        padding: 0.5rem 1.5rem 1.25rem;
    }
    .mobile-nav.open {
        display: block;
    }
    .mobile-nav a {
        display: block;
        padding: 0.78rem 0.5rem;
        color: #C8CEDB;
        font-weight: 400;
        border-radius: 8px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .mobile-nav a.active {
        color: #fff;
        background: rgba(108, 77, 246, 0.10);
        border-left: 3px solid #00E5FF;
    }
    .mobile-nav .mobile-cta {
        margin-top: 0.6rem;
        text-align: center;
        background: #6C4DF6;
        padding: 0.8rem 1rem;
        border-radius: 8px;
        color: #fff;
        font-weight: 600;
    }

    @media (max-width: 1023px) {
        .nav-menu {
            display: none;
        }
        .header-cta {
            display: none;
        }
        .burger-menu {
            display: flex;
        }
    }

    /* ===== hero section ===== */
    .hero-section {
        background-color: #0B0D15;
        position: relative;
        overflow: hidden;
    }
    .hero-bgimg {
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/backpic/back-1.webp');
        background-size: cover;
        background-position: center 40%;
        background-repeat: no-repeat;
        opacity: 0.66;
        z-index: 0;
    }
    .hero-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(90deg, rgba(11, 13, 21, 0.96) 8%, rgba(11, 13, 21, 0.88) 40%, rgba(11, 13, 21, 0.6) 75%, rgba(11, 13, 21, 0.5) 100%);
        z-index: 1;
    }
    .hero-section::after {
        content: '';
        position: absolute;
        bottom: -100px;
        right: -80px;
        width: 360px;
        height: 360px;
        border-radius: 999px;
        border: 2px dashed rgba(0, 229, 255, 0.30);
        z-index: 2;
        pointer-events: none;
    }
    .hero-content {
        position: relative;
        z-index: 5;
        display: grid;
        grid-template-columns: 1.1fr 0.9fr;
        gap: 2.5rem;
        align-items: center;
        padding-top: 5rem;
        padding-bottom: 5rem;
    }
    @media (max-width: 1023px) {
        .hero-content {
            grid-template-columns: 1fr;
            padding-top: 3.25rem;
            padding-bottom: 3rem;
        }
    }
    .hero-eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 14px;
        color: #9D8CFF;
        background: rgba(108, 77, 246, 0.12);
        border: 1px solid rgba(108, 77, 246, 0.35);
        padding: 0.3rem 1rem 0.3rem 0.7rem;
        border-radius: 99px;
        margin-bottom: 1.25rem;
        letter-spacing: 0.02em;
    }
    .hero-eyebrow .dot-pulse {
        width: 8px;
        height: 8px;
        border-radius: 99px;
        background: #00E5FF;
        box-shadow: 0 0 0 0 rgba(0, 229, 255, 0.6);
        animation: pulse 2s infinite;
    }
    @keyframes pulse {
        0% {
            box-shadow: 0 0 0 0 rgba(0, 229, 255, 0.6);
        }
        70% {
            box-shadow: 0 0 0 10px rgba(0, 229, 255, 0);
        }
        100% {
            box-shadow: 0 0 0 0 rgba(0, 229, 255, 0);
        }
    }
    .hero-title {
        font-size: 40px;
        line-height: 1.2;
        font-weight: 700;
        color: #FFFFFF;
        letter-spacing: -0.02em;
        margin: 0 0 1.1rem 0;
    }
    @media (min-width: 1024px) {
        .hero-title {
            font-size: 44px;
        }
    }
    @media (max-width: 640px) {
        .hero-title {
            font-size: 30px;
        }
    }
    .hero-sub {
        color: #AEB6C8;
        font-size: 17px;
        line-height: 1.8;
        max-width: 540px;
        margin-bottom: 2rem;
    }
    .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 1rem;
        align-items: center;
    }
    .btn-primary {
        display: inline-flex;
        align-items: center;
        gap: 0.4rem;
        background: #6C4DF6;
        color: #FFFFFF !important;
        font-weight: 600;
        font-size: 16px;
        border: 1px solid rgba(108, 77, 246, 0.4);
        border-radius: 8px;
        padding: 0.85rem 1.75rem;
        transition: all .22s ease;
        cursor: pointer;
        line-height: 1.1;
    }
    .btn-primary:hover {
        background: #4120D9;
        box-shadow: 0 0 12px rgba(0, 229, 255, 0.40);
        transform: translateY(-2px);
    }
    .btn-secondary-line {
        display: inline-flex;
        align-items: center;
        gap: 0.4rem;
        background: transparent;
        color: #E2E6F0;
        font-weight: 500;
        font-size: 15px;
        border: 1px solid rgba(255, 255, 255, 0.22);
        border-radius: 8px;
        padding: 0.8rem 1.5rem;
        transition: border-color .2s, background .2s, color .2s;
    }
    .btn-secondary-line:hover {
        border-color: #00E5FF;
        background: rgba(0, 229, 255, 0.06);
        color: #FFFFFF;
    }
    .hero-stat-card {
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: 16px;
        padding: 1.3rem;
        backdrop-filter: blur(8px);
    }
    .hero-stat-card .stat-highlight {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 13px;
        color: #9D8CFF;
        margin-top: 0.6rem;
    }
    .hero-stat-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    .hero-mini-label {
        color: #8891A5;
        font-size: 13px;
        margin-bottom: 0.2rem;
    }

    /* trust strip */
    .trust-bar {
        background: #0E1019;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        padding: 1.1rem 0;
    }
    .trust-inner {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 0.9rem 2.2rem;
    }
    .trust-item {
        display: inline-flex;
        align-items: center;
        gap: 0.55rem;
        color: #D6DBE7;
        font-size: 14px;
    }
    .trust-item i.ti-circle {
        width: 8px;
        height: 8px;
        background: #00E5FF;
        border-radius: 50%;
        box-shadow: 0 0 6px rgba(0, 229, 255, 0.6);
    }
    @media (max-width: 640px) {
        .trust-inner {
            justify-content: center;
        }
    }

    /* section general */
    .section-block {
        background: var(--bg-section);
        padding-top: 4.5rem;
        padding-bottom: 4.5rem;
    }
    @media (min-width: 768px) {
        .section-block {
            padding-top: 5.5rem;
            padding-bottom: 5.5rem;
        }
    }
    .section-white {
        background: #FFFFFF;
    }
    .section-dark {
        background: #0C0F18;
    }
    .section-header {
        margin-bottom: 2.8rem;
        max-width: 780px;
    }
    .section-eyebrow {
        display: inline-block;
        font-size: 14px;
        font-weight: 500;
        letter-spacing: 0.02em;
        color: #6C4DF6;
        border-left: 3px solid #00E5FF;
        padding-left: 0.75rem;
        margin-bottom: 0.7rem;
    }
    .section-title {
        font-size: 28px;
        line-height: 1.3;
        font-weight: 700;
        color: #121522;
        margin: 0 0 0.7rem 0;
        letter-spacing: -0.01em;
    }
    .section-white .section-title,
    .section-block .section-title {
        color: #121522;
    }
    .section-dark .section-title {
        color: #F0F2F8;
    }
    .section-dark .section-eyebrow {
        color: #9D8CFF;
    }
    .section-desc {
        font-size: 16px;
        line-height: 1.75;
        color: #626A7C;
        margin-bottom: 0;
    }
    .section-dark .section-desc {
        color: #AEB6C8;
    }

    /* cards */
    .card-grid-1plus1 {
        display: grid;
        grid-template-columns: 1.2fr 1fr;
        gap: 1.5rem;
        align-items: stretch;
    }
    @media (max-width: 900px) {
        .card-grid-1plus1 {
            grid-template-columns: 1fr;
        }
    }
    .puzzle-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1.5rem;
    }
    @media (max-width: 640px) {
        .puzzle-grid {
            grid-template-columns: 1fr;
        }
    }
    .feature-card-a {
        background: linear-gradient(150deg, #161A2A 0%, #10131F 100%);
        border-radius: 16px;
        padding: 2rem 1.85rem;
        color: #EDF0F8;
        border: 1px solid rgba(255, 255, 255, 0.10);
        position: relative;
        overflow: hidden;
    }
    .feature-card-a::after {
        content: '';
        position: absolute;
        right: -20px;
        top: -20px;
        width: 120px;
        height: 120px;
        border-radius: 50%;
        background: rgba(108, 77, 246, 0.18);
        filter: blur(40px);
    }
    .feature-card-b {
        background: #FFFFFF;
        border-radius: 16px;
        padding: 1.5rem 1.5rem;
        border: 1px solid #E7E9F0;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
        transition: box-shadow .2s ease, transform .2s ease;
    }
    .feature-card-b:hover {
        box-shadow: 0 10px 30px rgba(108, 77, 246, 0.08);
        transform: translateY(-3px);
    }
    .feature-card-accent {
        border-top: 4px solid #6C4DF6;
    }
    .mini-title {
        font-size: 18px;
        font-weight: 600;
        margin: 0 0 0.4rem 0;
        color: #1E2330;
    }
    .mini-sub {
        color: #626A7C;
        font-size: 14px;
        line-height: 1.7;
    }

    /* panels dark */
    .dark-panel {
        background: rgba(12, 15, 24, 1);
    }

    /* full width strip list */
    .link-row-strip {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        background: #FFFFFF;
        border: 1px solid #E7E9F0;
        border-radius: 15px;
        padding: 1.15rem 1.5rem;
        margin-top: 1rem;
        transition: box-shadow .2s;
    }
    .link-row-strip:hover {
        box-shadow: 0 6px 18px rgba(108, 77, 246, 0.05);
    }
    .link-row-title {
        font-weight: 600;
        color: #232734;
        font-size: 16px;
    }
    .link-row-meta {
        color: #9AA1B0;
        font-size: 13px;
    }
    .arrow-link {
        display: inline-flex;
        align-items: center;
        gap: 0.35rem;
        color: #6C4DF6;
        font-size: 14px;
        font-weight: 500;
        transition: gap .2s;
    }
    .arrow-link i {
        font-style: normal;
        transition: transform .2s;
    }
    .arrow-link:hover {
        color: #4120D9;
    }
    .arrow-link:hover i {
        transform: translateX(4px);
    }

    /* btn ghost */
    .btn-ghost {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 0.4rem;
        border: 1px solid #6C4DF6;
        color: #6C4DF6;
        background: transparent;
        border-radius: 8px;
        font-size: 15px;
        font-weight: 500;
        padding: 0.7rem 1.4rem;
        transition: background .2s, color .2s, box-shadow .2s;
    }
    .btn-ghost:hover {
        background: #6C4DF6;
        color: #FFFFFF;
        box-shadow: 0 4px 16px rgba(108, 77, 246, 0.14);
    }

    /* data banner */
    .data-banner {
        background: linear-gradient(120deg, #141A2E 0%, #0C0F18 100%);
        border-block: 1px solid rgba(255, 255, 255, 0.06);
        padding: 2.5rem 0;
    }
    .data-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
        text-align: left;
    }
    @media (max-width: 700px) {
        .data-grid {
            grid-template-columns: 1fr;
            gap: 1.2rem;
        }
    }
    .data-block .data-number {
        color: #F5B744;
        font-size: 34px;
        font-weight: 700;
        letter-spacing: -0.01em;
        line-height: 1.2;
        margin-bottom: 0.2rem;
    }
    .data-block .data-label {
        color: #B6BCCA;
        font-size: 14px;
    }

    /* dynamic list card section (news) */
    .news-wrap {
        display: grid;
        grid-template-columns: 1.2fr 1fr;
        gap: 1.5rem;
    }
    @media (max-width: 900px) {
        .news-wrap {
            grid-template-columns: 1fr;
        }
    }
    .news-card-main {
        border-radius: 16px;
        border: 1px solid #E7E9F0;
        background: #fff;
        overflow: hidden;
        transition: box-shadow 0.2s, transform 0.2s;
        display: flex;
        flex-direction: column;
    }
    .news-card-main:hover {
        box-shadow: 0 12px 30px rgba(17, 20, 30, 0.06);
        transform: translateY(-3px);
    }
    .news-card-img {
        aspect-ratio: 16/8;
        background: #ddd;
        width: 100%;
        object-fit: cover;
    }
    .news-card-main .news-body {
        padding: 1.3rem 1.5rem;
    }
    .news-title {
        font-size: 18px;
        line-height: 1.45;
        font-weight: 600;
        color: #121522;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        margin-bottom: 0.45rem;
    }
    .news-excerpt {
        color: #626A7C;
        font-size: 14px;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        margin-bottom: 0.75rem;
    }
    .news-meta {
        display: flex;
        align-items: center;
        gap: 0.9rem;
        flex-wrap: wrap;
        color: #9AA1B0;
        font-size: 13px;
    }
    .news-meta .cat-chip {
        background: rgba(108, 77, 246, 0.08);
        color: #6C4DF6;
        border-radius: 6px;
        padding: 0.1rem 0.7rem;
        font-weight: 500;
    }
    .news-card-stack {
        display: grid;
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .news-card-stack-item {
        background: #FFFFFF;
        border: 1px solid #E7E9F0;
        border-radius: 14px;
        padding: 1.2rem 1.35rem;
        display: flex;
        column-gap: 1rem;
        align-items: flex-start;
        transition: box-shadow .2s, transform .2s;
    }
    .news-card-stack-item:hover {
        box-shadow: 0 8px 20px rgba(17, 20, 30, 0.05);
        transform: translateX(2px);
    }
    .news-stack-img {
        width: 92px;
        height: 92px;
        object-fit: cover;
        border-radius: 12px;
        background: #eee;
        flex-shrink: 0;
    }
    .news-stack-title {
        font-size: 16px;
        font-weight: 600;
        line-height: 1.4;
        color: #1E2330;
        margin: 0 0 0.35rem 0;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
    }
    .news-stack-ex {
        font-size: 13px;
        color: #626A7C;
        overflow: hidden;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        margin-bottom: 0.4rem;
    }
    .empty-list {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        background: #FFFFFF;
        border: 1px dashed #D0D5E0;
        border-radius: 16px;
        padding: 3rem 1.5rem;
        text-align: center;
        grid-column: 1 / -1;
    }
    .empty-list .empty-dot {
        width: 44px;
        height: 44px;
        border-radius: 50%;
        border: 2px solid #C5CBE0;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
        color: #7d869c;
        margin-bottom: 0.5rem;
    }
    .empty-list p {
        color: #7d869c;
        margin: 0;
        font-size: 15px;
    }

    /* 2x2 security grid */
    .grid-2x2 {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem 3rem;
        margin-top: 1rem;
    }
    @media (max-width: 640px) {
        .grid-2x2 {
            grid-template-columns: 1fr;
            gap: 1.4rem;
        }
    }
    .security-split {
        border-bottom: 1px solid #E6E9F0;
        padding-bottom: 1.6rem;
    }
    .security-split .safe-icon {
        font-size: 27px;
        color: #6C4DF6;
        margin-bottom: 0.5rem;
        line-height: 1;
    }
    .security-split h3 {
        font-size: 18px;
        font-weight: 600;
        color: #1E2330;
        margin: 0 0 0.35rem 0;
    }
    .security-split p {
        font-size: 15px;
        color: #626A7C;
        line-height: 1.7;
        max-width: 500px;
        margin: 0;
    }

    /* form section */
    .form-wrap-card {
        background: #FFFFFF;
        border-radius: 20px;
        padding: 2rem 1.8rem;
        box-shadow: 0 20px 60px rgba(15, 20, 30, 0.08);
        margin-top: 2rem;
        border: 1px solid #EDF0F6;
    }
    @media (min-width: 768px) {
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.2rem 1.8rem;
        }
    }
    .form-label {
        display: block;
        font-size: 14px;
        font-weight: 500;
        color: #3D4456;
        margin-bottom: 0.3rem;
    }
    .form-control {
        width: 100%;
        border: 1px solid #D6DAE3;
        border-radius: 8px;
        padding: 0.7rem 0.85rem;
        font-size: 15px;
        color: #232734;
        background: #FFFFFF;
        outline: none;
        transition: border-color .2s, box-shadow .2s;
        margin-bottom: 1.1rem;
    }
    .form-control:focus {
        border-color: #6C4DF6;
        box-shadow: 0 0 0 3px rgba(108, 77, 246, 0.12);
    }
    .consent-wrap {
        display: flex;
        align-items: flex-start;
        gap: 0.5rem;
        font-size: 13px;
        color: #888FA0;
        margin: 0.5rem 0 1.1rem 0;
    }
    .consent-wrap input {
        margin-top: 0.18rem;
        width: 16px;
        height: 16px;
        accent-color: #6C4DF6;
    }
    .privacy-note {
        display: inline-flex;
        align-items: center;
        gap: 0.4rem;
        font-size: 13px;
        color: #8891A5;
        margin-top: 0.7rem;
    }
    .privacy-note .lock-icon {
        font-size: 16px;
    }

    /* FAQ accordion */
    .faq-list {
        max-width: 850px;
    }
    .faq-item {
        background: #FFFFFF;
        border: 1px solid #EDF0F6;
        border-radius: 14px;
        margin-bottom: 0.8rem;
        overflow: hidden;
        transition: box-shadow .2s;
    }
    .faq-item[open] {
        box-shadow: 0 6px 20px rgba(108, 77, 246, 0.06);
    }
    .faq-summary {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1.1rem 1.4rem;
        cursor: pointer;
        list-style: none;
        outline: none;
    }
    .faq-summary::-webkit-details-marker {
        display: none;
    }
    .faq-summary .faq-q {
        font-size: 16px;
        font-weight: 500;
        color: #232734;
        line-height: 1.4;
    }
    .faq-icon {
        width: 28px;
        height: 28px;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        background: transparent;
        border-radius: 8px;
        font-size: 22px;
        color: #6C4DF6;
        font-weight: 300;
        transition: transform .3s;
        border: 1px solid rgba(108, 77, 246, 0.20);
        margin-left: 1rem;
    }
    .faq-item[open] .faq-icon {
        transform: rotate(45deg);
        background: #6C4DF6;
        color: #fff;
    }
    .faq-answer {
        padding: 0.2rem 1.4rem 1.2rem 1.4rem;
        background: #F8F9FC;
        border-left: 2px solid #00E5FF;
        margin: 0 1.4rem 1rem 1.4rem;
        border-radius: 0 8px 8px 0;
        font-size: 15px;
        color: #4A5162;
        line-height: 1.7;
    }
    .faq-bottom-link {
        text-align: center;
        margin-top: 1.5rem;
        font-size: 15px;
        color: #626A7C;
    }
    .faq-bottom-link a {
        color: #6C4DF6;
        font-weight: 500;
    }
    .faq-bottom-link a:hover {
        text-decoration: underline;
    }

    /* bottom CTA */
    .cta-block {
        background: linear-gradient(120deg, #181A2A, #101424);
        position: relative;
        overflow: hidden;
        padding: 4rem 0;
    }
    .cta-block::before {
        content: '';
        position: absolute;
        right: -100px;
        top: -100px;
        width: 260px;
        height: 260px;
        border-radius: 999px;
        border: 1.5px dashed rgba(108, 77, 246, 0.45);
    }
    .cta-inner {
        position: relative;
        z-index: 3;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 1.5rem;
    }
    .cta-inner h2 {
        color: #F6F7FC;
        font-size: 26px;
        margin: 0 0 0.3rem 0;
        line-height: 1.35;
    }
    .cta-inner p {
        color: #A8B0C2;
        margin: 0;
        font-size: 15px;
        max-width: 560px;
    }
    .cta-actions {
        display: flex;
        gap: 0.8rem;
        flex-wrap: wrap;
    }
    .btn-white {
        display: inline-flex;
        align-items: center;
        background: #FFFFFF;
        color: #141824;
        font-weight: 600;
        padding: 0.8rem 1.6rem;
        border-radius: 8px;
        font-size: 15px;
        transition: box-shadow .2s, transform .2s;
    }
    .btn-white:hover {
        box-shadow: 0 8px 26px rgba(255, 255, 255, 0.16);
        transform: translateY(-2px);
    }
    .btn-line {
        display: inline-flex;
        align-items: center;
        border: 1px solid rgba(255, 255, 255, 0.22);
        color: #FFFFFF;
        padding: 0.8rem 1.6rem;
        border-radius: 8px;
        font-size: 15px;
        transition: border .2s, background .2s, color .2s;
        background: transparent;
    }
    .btn-line:hover {
        border-color: #00E5FF;
        background: rgba(0, 229, 255, 0.06);
    }

    /* footer */
    .footer {
        background: #090B12;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
        padding: 3.5rem 0 1rem;
    }
    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1.2fr;
        gap: 2.5rem;
        padding-bottom: 2.5rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    @media (max-width: 800px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }
    }
    @media (max-width: 540px) {
        .footer-grid {
            grid-template-columns: 1fr;
            gap: 1.8rem;
        }
    }
    .footer-brand-logo {
        font-size: 20px;
        font-weight: 700;
        color: #F0F2F8;
        margin-bottom: 0.5rem;
    }
    .footer-brand-logo span {
        color: #00E5FF;
    }
    .footer-about-text {
        color: #8E96A8;
        font-size: 14px;
        line-height: 1.7;
        margin: 0.8rem 0 1rem 0;
    }
    .footer-col-title {
        color: #D7DBE6;
        font-size: 15px;
        font-weight: 600;
        margin: 0 0 0.8rem 0;
    }
    .footer-links {
        list-style: none;
        margin: 0;
        padding: 0;
        display: flex;
        flex-direction: column;
        gap: 0.4rem;
    }
    .footer-links a {
        color: #8E96A8;
        font-size: 14px;
    }
    .footer-links a:hover {
        color: #FFFFFF;
    }
    .footer-note-text {
        color: #6E7686;
        font-size: 13px;
        line-height: 1.65;
        border: 1px solid rgba(255, 255, 255, 0.06);
        border-radius: 10px;
        padding: 0.7rem 0.9rem;
    }
    .footer-bottom {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        padding-top: 1.5rem;
        gap: 0.8rem;
        color: #5F6878;
        font-size: 13px;
    }
    .footer-bottom a {
        color: #8E96A8;
    }
    .footer-bottom a:hover {
        color: #FFFFFF;
    }

/* roulang page: category1 */
:root {
            --bg-base: #0B0D15;
            --bg-section: #F3F5F9;
            --primary-light: #9D8CFF;
            --primary-base: #6C4DF6;
            --primary-deep: #4120D9;
            --neon-line: #00E5FF;
            --accent-bright: #F5B744;
            --danger-flag: #E34F4F;
            --text-header: #F0F2F8;
            --text-body: #2A2F3A;
            --text-sub: #626A7C;
            --border-light: #E0E3EB;
            --radius-card: 18px;
            --radius-button: 10px;
            --shadow-card: 0 4px 20px rgba(14, 18, 30, 0.05);
            --shadow-neon: 0 0 0 1px rgba(108, 77, 246, 0.08), 0 15px 40px rgba(108, 77, 246, 0.15);
        }

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

        html {
            scroll-behavior: smooth;
            scroll-padding-top: 100px;
        }

        body {
            font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-body);
            background-color: var(--bg-section);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        .container-site {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ============ HEADER ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(11, 13, 21, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
            border-bottom: 1px solid rgba(0, 229, 255, 0.12);
        }

        .site-header::before {
            content: "";
            display: block;
            height: 2px;
            background: linear-gradient(90deg, var(--neon-line), var(--primary-base), transparent 70%);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 76px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-mark {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary-base), var(--primary-deep));
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 0 1px rgba(0, 229, 255, 0.4), 0 0 18px rgba(108, 77, 246, 0.3);
            position: relative;
            z-index: 1;
        }

        .logo-mark::after {
            content: "";
            position: absolute;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--neon-line);
            top: -2px;
            right: -2px;
            box-shadow: 0 0 8px var(--neon-line);
        }

        .logo-text {
            color: var(--text-header);
            font-weight: 700;
            font-size: 18px;
            letter-spacing: 0.01em;
            line-height: 1.2;
        }

        .logo-text small {
            display: block;
            font-size: 10px;
            font-weight: 400;
            letter-spacing: 0.16em;
            color: #7A8196;
            margin-top: 2px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            display: flex;
            align-items: center;
            height: 44px;
            padding: 0 14px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 500;
            color: #C4C9D4;
            letter-spacing: 0.04em;
            transition: all 0.25s ease;
            white-space: nowrap;
            position: relative;
        }

        .nav-menu li a:hover {
            color: #fff;
            background: rgba(108, 77, 246, 0.14);
        }

        .nav-menu li a.active {
            color: #FFFFFF;
            background: rgba(108, 77, 246, 0.1);
            text-shadow: 0 0 14px rgba(0, 229, 255, 0.7);
            font-weight: 600;
        }

        .nav-menu li a.active::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--neon-line);
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.8);
            border-radius: 4px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-base);
            color: #fff !important;
            font-size: 14px;
            font-weight: 600;
            height: 42px;
            padding: 0 20px;
            border-radius: var(--radius-button);
            transition: all 0.3s ease;
            white-space: nowrap;
            letter-spacing: 0.02em;
            box-shadow: 0 2px 10px rgba(108, 77, 246, 0.3);
        }

        .header-cta:hover {
            background: transparent;
            box-shadow: inset 0 0 0 1px var(--primary-light), 0 0 16px rgba(0, 229, 255, 0.25);
            color: var(--neon-line) !important;
            transform: translateY(-1px);
        }

        .burger-menu {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            background: transparent;
            padding: 12px 8px;
        }

        .burger-menu span {
            width: 24px;
            height: 2px;
            background-color: #CBD5E1;
            border-radius: 4px;
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            background: rgba(10, 12, 20, 0.98);
            padding: 20px 24px 28px;
            border-top: 1px solid rgba(0, 229, 255, 0.1);
        }

        .mobile-nav a {
            color: #C4C9D4;
            padding: 12px 8px;
            font-size: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            white-space: nowrap;
        }

        .mobile-nav a.active {
            color: var(--neon-line);
            font-weight: 600;
        }

        .mobile-nav .mobile-cta {
            margin-top: 16px;
            text-align: center;
            background: var(--primary-base);
            color: white;
            border-radius: 8px;
            padding: 13px 20px;
        }

        /* ============ PAGE HERO ============ */
        .sub-hero {
            position: relative;
            background: linear-gradient(120deg, #0B0D15 15%, #1A1533 60%, #231A44 100%);
            padding: 84px 0 72px;
            overflow: hidden;
            border-bottom: 1px solid rgba(0, 229, 255, 0.12);
        }

        .sub-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 40%;
            opacity: 0.16;
        }

        .sub-hero::before {
            content: "";
            position: absolute;
            width: 400px;
            height: 400px;
            right: -100px;
            top: 50%;
            transform: translateY(-50%);
            background: radial-gradient(circle, rgba(108, 77, 246, 0.15), transparent 65%);
            border-radius: 50%;
            z-index: 1;
        }

        .sub-hero::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 60px;
            background: linear-gradient(to top, #F3F5F9 0%, transparent 100%);
            z-index: 2;
        }

        .sub-hero-main {
            position: relative;
            z-index: 3;
            text-align: center;
            max-width: 860px;
            margin: 0 auto;
        }

        .sub-hero .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--neon-line);
            font-size: 14px;
            letter-spacing: 0.08em;
            font-weight: 500;
            margin-bottom: 20px;
            background: rgba(0, 229, 255, 0.08);
            padding: 7px 20px;
            border-radius: 40px;
            border: 1px solid rgba(0, 229, 255, 0.2);
            backdrop-filter: blur(4px);
        }

        .sub-hero h1 {
            color: #F4F6FC;
            font-size: clamp(30px, 4vw, 42px);
            line-height: 1.35;
            font-weight: 800;
            letter-spacing: 0.01em;
            margin-bottom: 20px;
            text-wrap: balance;
        }

        .sub-hero p.hero-desc {
            color: #A9B2CC;
            font-size: 16px;
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* 锚点导航 */
        .anchor-nav-wrap {
            background: #FFFFFF;
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
        }

        .anchor-nav-wrap .container-site {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: nowrap;
            overflow-x: auto;
            scrollbar-width: none;
            padding-top: 20px;
            padding-bottom: 20px;
        }

        .anchor-nav-wrap .container-site::-webkit-scrollbar {
            display: none;
        }

        .anchor-group {
            font-size: 14px;
            font-weight: 700;
            color: #5A6070;
            letter-spacing: 0.1em;
            margin-right: 8px;
            text-transform: uppercase;
        }

        .anchor-btn {
            display: inline-flex;
            align-items: center;
            padding: 9px 20px;
            border-radius: 40px;
            font-size: 14px;
            background: #F3F5F9;
            color: #51586B;
            white-space: nowrap;
            transition: all 0.2s ease;
            border: 1px solid transparent;
            font-weight: 500;
        }

        .anchor-btn:hover {
            background: rgba(108, 77, 246, 0.1);
            color: var(--primary-base);
        }

        .anchor-btn.is-active {
            background: var(--primary-base);
            color: white;
            box-shadow: 0 0 0 3px rgba(108, 77, 246, 0.15);
        }

        /* ============ 主体 ============ */
        .page-main-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 340px;
            gap: 40px;
            align-items: start;
            padding-top: 40px;
            padding-bottom: 64px;
        }

        .content-primary {
            min-width: 0;
            background-color: transparent;
        }

        .side-column {
            position: sticky;
            top: 110px;
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        /* 引述区 */
        .quote-hero {
            background: linear-gradient(135deg, #FFFFFF 0%, #FAF9FF 100%);
            border: 1px solid rgba(108, 77, 246, 0.12);
            border-radius: 20px;
            padding: 40px 36px;
            position: relative;
            box-shadow: var(--shadow-card);
            overflow: hidden;
            margin-bottom: 24px;
        }

        .quote-hero::before {
            content: "“";
            position: absolute;
            top: -12px;
            left: 14px;
            font-size: 120px;
            line-height: 1;
            font-family: Georgia, serif;
            color: rgba(108, 77, 246, 0.12);
            font-weight: 700;
        }

        .quote-hero .block-num {
            position: relative;
            font-size: 0;
            margin-bottom: 18px;
        }

        .block-num {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .block-num .line-icon {
            width: 16px;
            height: 4px;
            border-radius: 4px;
            background: var(--neon-line);
            box-shadow: 0 0 8px rgba(0, 229, 255, 0.6);
            display: inline-block;
        }

        .block-num span {
            font-size: 13px;
            font-weight: 600;
            color: #7A60FF;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .block-num-light span {
            color: var(--neon-line);
        }

        .quote-hero-default {
            font-size: 20px;
            line-height: 1.8;
            color: #353B49;
            font-weight: 600;
            position: relative;
            z-index: 1;
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }

        .quote-hero-sub {
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.7;
            margin-top: 8px;
        }

        /* 说明区块 */
        .section-block {
            margin-bottom: 24px;
            background: #FFFFFF;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-card);
            padding: 36px 34px;
            transition: box-shadow 0.3s ease;
        }

        .section-block:hover {
            box-shadow: 0 8px 30px rgba(20, 25, 60, 0.04);
        }

        .section-title {
            font-size: 24px;
            font-weight: 700;
            color: #20242E;
            line-height: 1.4;
            margin-bottom: 14px;
            letter-spacing: -0.01em;
        }

        .section-title .neon-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--neon-line);
            border-radius: 2px;
            margin-right: 12px;
            box-shadow: 0 0 12px rgba(0, 229, 255, 0.7);
        }

        .section-intro-text {
            color: #555E72;
            font-size: 15px;
            line-height: 1.85;
            margin-bottom: 22px;
        }

        .feature-list-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 8px;
        }

        .feature-item {
            background: #FBFBFF;
            border-radius: 14px;
            padding: 22px 20px;
            border-left: 3px solid var(--neon-line);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.02);
        }

        .feature-item.secondary {
            border-left-color: var(--primary-base);
        }

        .feature-item .feature-head {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 600;
            font-size: 16px;
            color: #232734;
            margin-bottom: 10px;
        }

        .feature-item p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.65;
            margin: 0;
        }

        .feature-item p strong {
            display: block;
            font-weight: 400;
            background: linear-gradient(to right, #6C4DF6, #4120D9);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-size: 15px;
        }

        .feature-card-icon {
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            background: rgba(108, 77, 246, 0.1);
            color: var(--primary-base);
            flex-shrink: 0;
            font-size: 15px;
        }

        .feature-card-icon.cyan {
            background: rgba(0, 229, 255, 0.1);
            color: #0EA5C6;
        }

        /* 列表专用 */
        .reason-list {
            list-style: none;
            margin-top: 10px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .reason-list li {
            position: relative;
            padding-left: 26px;
            color: #3E4453;
            font-size: 15px;
            line-height: 1.75;
        }

        .reason-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 10px;
            width: 12px;
            height: 12px;
            border-radius: 4px;
            background: linear-gradient(145deg, var(--neon-line), #3A9BC4);
            opacity: 0.75;
        }

        .reason-list strong {
            color: #20242E;
            font-weight: 600;
        }

        /* 表格 */
        .platform-table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin-top: 16px;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid #E8EAF0;
            font-size: 15px;
            box-decoration-break: clone;
        }

        .platform-table th {
            background: linear-gradient(135deg, rgba(108, 77, 246, 0.09), rgba(0, 229, 255, 0.06));
            text-align: left;
            padding: 13px 18px;
            font-weight: 600;
            color: #3B3E50;
            width: 180px;
            border-bottom: 1px solid #E0E4ED;
            letter-spacing: 0.02em;
        }

        .platform-table td {
            padding: 13px 18px;
            color: #4C5368;
            line-height: 1.7;
            border-bottom: 1px solid #EDEFF5;
            background: #fff;
        }

        .platform-table tr:last-child th,
        .platform-table tr:last-child td {
            border-bottom: none;
        }

        /* 模块双列 */
        .generation-grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        /* 侧边卡片 */
        .side-card {
            background: #FFFFFF;
            border-radius: 16px;
            border: 1px solid var(--border-light);
            padding: 22px 20px;
            box-shadow: 0 4px 16px rgba(10, 14, 30, 0.04);
            transition: transform 0.2s ease;
        }

        .side-card-image {
            border-radius: 12px;
            overflow: hidden;
            aspect-ratio: 12 / 8;
            margin-bottom: 14px;
        }

        .side-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .side-card-image img:hover {
            transform: scale(1.03);
        }

        .side-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: #232734;
            margin-bottom: 8px;
        }

        .side-card .side-desc {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.6;
        }

        .side-list {
            list-style: none;
            margin-top: 12px;
            border-top: 1px solid #F0F1F5;
            padding-top: 10px;
        }

        .side-list li {
            padding: 6px 0;
            border-bottom: 1px dashed #EDEFF2;
        }

        .side-list li a {
            font-size: 14px;
            color: #576075;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .side-list li a::before {
            content: "›";
            color: var(--primary-base);
            font-weight: 300;
            font-size: 18px;
            line-height: 1;
        }

        .side-list li:last-child {
            border: none;
        }

        .side-list li a:hover {
            color: var(--primary-base);
        }

        .status-indicator {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #F7FAF7;
            border-radius: 8px;
            padding: 8px 12px;
            border: 1px solid rgba(22, 128, 51, 0.15);
            margin-bottom: 12px;
        }

        .status-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #15C164;
            box-shadow: 0 0 0 3px rgba(21, 193, 100, 0.15);
        }

        .status-text {
            font-size: 13px;
            font-weight: 500;
            color: #2A7A43;
        }

        /* 优点码 */
        .advantage-number {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary-deep);
            line-height: 1;
        }

        /* 服务数据区 */
        .data-strip {
            background: linear-gradient(115deg, #0C0F18 0%, #171532 70%, #1E1740 100%);
            padding: 30px 0;
            margin: 20px 0 34px;
            border-radius: 24px;
            color: white;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            position: relative;
            overflow: hidden;
            box-shadow: 0 12px 40px rgba(40, 20, 90, 0.2);
        }

        .data-strip::before {
            content: "";
            position: absolute;
            right: 0;
            top: 0;
            width: 180px;
            height: 140px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.13), transparent 70%);
        }

        .data-value {
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .data-num {
            font-size: 28px;
            font-weight: 700;
            color: #F4F6FC;
            letter-spacing: -0.01em;
        }

        .data-num .highlight {
            color: var(--accent-bright);
        }

        .data-title {
            font-size: 13px;
            color: #A0A8C0;
            letter-spacing: 0.06em;
            margin-top: 4px;
        }

        .data-separator {
            width: 1px;
            height: 40px;
            background: rgba(255, 255, 255, 0.12);
            margin: auto;
        }

        /* ============ CTA ============ */
        .bottom-cta {
            background: linear-gradient(135deg, #0C0F18, #191438);
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            padding: 38px 40px;
            color: white;
            margin: 36px 0 24px;
            position: relative;
            overflow: hidden;
        }

        .bottom-cta::after {
            content: "";
            position: absolute;
            right: -30px;
            bottom: -80px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(0, 229, 255, 0.1), transparent 65%);
            border-radius: 50%;
        }

        .bottom-cta h3 {
            font-size: clamp(19px, 2.5vw, 24px);
            font-weight: 700;
            margin: 0 0 10px;
            color: #F0F2F8;
        }

        .bottom-cta p {
            color: #9FA7BF;
            font-size: 15px;
            margin: 0;
        }

        .cta-wrap {
            display: flex;
            gap: 12px;
            align-items: center;
            flex-shrink: 0;
        }

        .cta-default {
            background: var(--primary-base);
            color: white;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 44px;
            padding: 0 24px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 15px;
            transition: all 0.3s ease;
        }

        .cta-default:hover {
            background: transparent;
            box-shadow: inset 0 0 0 1px var(--primary-light), 0 0 14px rgba(0, 229, 255, 0.2);
            color: white;
            transform: translateY(-2px);
        }

        .cta-ghost {
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #C6CBD9 !important;
            background: transparent;
            height: 40px;
            display: inline-flex;
            align-items: center;
            padding: 0 20px;
            border-radius: 10px;
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .cta-ghost:hover {
            border-color: rgba(0, 229, 255, 0.4);
            color: var(--neon-line) !important;
            background: rgba(0, 229, 255, 0.03);
        }

        /* ============ FOOTER ============ */
        .footer {
            background: #090B12;
            padding-top: 16px 0;
            border-top: 2px solid rgba(0, 229, 255, 0.12);
            background: #090b12;
            color: #858D9F;
        }

        .footer {
            position: relative;
            background-color: #090B12;
            background-image: linear-gradient(to right, rgba(0, 229, 255, 0.03) 1px, transparent 1px), linear-gradient(to bottom, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
            background-size: 28px 28px;
        }

        .footer .container-site {
            padding-top: 48px;
            padding-bottom: 8px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 38px;
            margin-bottom: 30px;
        }

        .footer-brand-logo {
            font-size: 22px;
            font-weight: 700;
            color: #F2F4FA;
            margin-bottom: 10px;
        }

        .footer-brand-logo span {
            color: var(--neon-line);
        }

        .footer-about-text {
            font-size: 14px;
            line-height: 1.8;
            color: #8D95A8;
            max-width: 240px;
        }

        .footer-col-title {
            color: #CDD3E0;
            font-size: 15px;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-col-title::after {
            content: "";
            width: 24px;
            height: 2px;
            background: var(--primary-base);
            border-radius: 4px;
            position: absolute;
            bottom: 0;
            left: 0;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #858D9F;
            font-size: 14px;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-note-text {
            color: #6B7284;
            font-size: 14px;
            line-height: 1.7;
            margin-top: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #667085;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 16px;
        }

        .footer-bottom span {
            opacity: 0.95;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .nav-menu {
                display: none;
            }

            .header-cta {
                display: none;
            }

            .burger-menu {
                display: flex;
            }

            .mobile-nav {
                display: flex;
            }

            .nav-menu.active {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 76px;
                left: 0;
                right: 0;
                background: rgba(10, 12, 20, 0.98);
                padding: 20px 24px;
                gap: 6px;
            }

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

            .side-column {
                position: static;
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
                margin-top: 16px;
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
        }

        @media (max-width: 768px) {
            .container-site {
                padding-left: 18px;
                padding-right: 18px;
            }

            .feature-list-grid,
            .generation-grid-2 {
                grid-template-columns: 1fr;
            }

            .side-column {
                grid-template-columns: 1fr;
            }

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

            .data-strip {
                grid-template-columns: 1fr;
                gap: 14px;
                padding: 24px;
            }

            .data-separator {
                display: none;
            }

            .quote-hero {
                padding: 28px 22px;
            }

            .section-block {
                padding: 26px 20px;
            }

            .sub-hero {
                padding: 56px 0 62px;
            }

            .cta-wrap {
                flex-direction: column;
                width: 100%;
                align-items: stretch;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 16px;
            }

            .logo-text small {
                font-size: 9px;
            }

            .logo-mark {
                width: 36px;
                height: 36px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }

            .platform-table th {
                width: 120px;
            }

            .anchor-btn {
                padding: 7px 14px;
                font-size: 13px;
            }

            .cta-wrap {
                flex-wrap: wrap;
            }
        }

        /* 滚动条 */
        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: #0C0F18;
        }

        ::-webkit-scrollbar-thumb {
            background: rgba(108, 77, 246, 0.45);
            border-radius: 4px;
        }

        ::selection {
            background: rgba(0, 229, 255, 0.2);
            color: var(--primary-deep);
        }

/* roulang page: article */
:root {
            --bg-base: #0c0f18;
            --bg-section: #f3f5f9;
            --bg-card: #ffffff;
            --primary-light: #9d8cff;
            --primary-base: #6c4df6;
            --primary-deep: #4120d9;
            --neon-line: #00e5ff;
            --accent-bright: #f5b744;
            --danger-flag: #e34f4f;
            --text-header: #f0f2f8;
            --text-body: #232734;
            --text-sub: #626a7c;
            --border-line: #e0e3eb;
            --footer-bg: #090b12;
            --radius-card: 16px;
            --radius-btn: 8px;
            --shadow-card: 0 6px 24px rgba(15, 18, 34, .06);
            --shadow-cta: 0 8px 30px rgba(108, 77, 246, .14);
            --font-sans: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "sans-serif";
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg-section);
            color: var(--text-body);
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        textarea {
            font: inherit;
        }

        .container-site {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            background: rgba(11, 13, 21, .9);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            padding-top: 2px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, .18);
        }

        .site-header::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--neon-line), var(--primary-base), transparent 65%);
            pointer-events: none;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            height: 72px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }

        .logo-mark {
            width: 40px;
            height: 40px;
            flex: 0 0 40px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary-base), var(--primary-deep));
            color: #fff;
            font-weight: 800;
            font-size: 22px;
            box-shadow: 0 0 18px rgba(108, 77, 246, .4);
        }

        .logo-text {
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: .01em;
            line-height: 1.15;
            display: flex;
            flex-direction: column;
        }

        .logo-text small {
            font-size: 10px;
            font-weight: 500;
            letter-spacing: .2em;
            color: rgba(255, 255, 255, .53);
            margin-top: 3px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .nav-menu li {
            margin: 0;
        }

        .nav-menu a {
            display: inline-flex;
            align-items: center;
            min-height: 44px;
            padding: 0 12px;
            color: rgba(240, 242, 248, .72);
            font-size: 14px;
            letter-spacing: .08em;
            border-bottom: 2px solid transparent;
            transition: color .25s ease, border-color .25s ease, text-shadow .25s ease;
        }

        .nav-menu a:hover {
            color: #fff;
            text-shadow: 0 0 14px rgba(0, 229, 255, .5);
        }

        .nav-menu a.active {
            color: #fff;
            border-bottom-color: var(--neon-line);
            text-shadow: 0 0 12px rgba(0, 229, 255, .45);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-base);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            padding: 10px 18px;
            border-radius: 8px;
            border: 1px solid rgba(157, 140, 255, .25);
            box-shadow: 0 4px 16px rgba(108, 77, 246, .18);
            transition: background .28s ease, box-shadow .28s ease, transform .28s ease;
        }

        .header-cta:hover {
            background: #5f3df2;
            box-shadow: 0 0 0 1px rgba(0, 229, 255, .5), 0 0 20px rgba(108, 77, 246, .35);
            transform: translateY(-1px);
        }

        .burger-menu {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            padding: 10px;
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: 8px;
            cursor: pointer;
        }

        .burger-menu span {
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: transform .3s ease, opacity .3s ease;
        }

        .burger-menu[aria-expanded="true"] span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .burger-menu[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .burger-menu[aria-expanded="true"] span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .mobile-nav {
            display: none;
            padding: 14px 20px 18px;
            border-top: 1px solid rgba(255, 255, 255, .08);
            background: rgba(11, 13, 21, .97);
            backdrop-filter: blur(12px);
        }

        .mobile-nav a {
            display: block;
            color: rgba(255, 255, 255, .78);
            padding: 12px 8px;
            font-size: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .mobile-nav a:last-child {
            border-bottom: 0;
        }

        .mobile-nav a.mobile-cta {
            margin-top: 10px;
            background: var(--primary-base);
            border-radius: 8px;
            text-align: center;
            color: #fff;
            font-weight: 600;
            border: 0;
        }

        /* ========= Page hero ========= */
        .page-hero {
            position: relative;
            padding: 56px 0 58px;
            background-size: cover;
            background-position: center 32%;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(9, 11, 18, .96), rgba(9, 11, 18, .86) 38%, rgba(9, 11, 18, .46) 78%, rgba(9, 11, 18, .5));
            pointer-events: none;
        }

        .page-hero .container-site {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .62);
            margin-bottom: 18px;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .78);
            transition: color .25s;
        }

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

        .breadcrumb .current {
            color: rgba(255, 255, 255, .55);
            max-width: 320px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            display: inline-block;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 12px;
            border-radius: 999px;
            border: 1px solid rgba(0, 229, 255, .35);
            background: rgba(0, 229, 255, .08);
            color: #b9eeff;
            font-size: 13px;
            letter-spacing: .08em;
            margin-bottom: 16px;
        }

        .hero-badge i {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--accent-bright);
            box-shadow: 0 0 10px rgba(245, 183, 68, .85);
        }

        .page-hero h1 {
            margin: 0;
            font-size: 38px;
            font-weight: 800;
            letter-spacing: -.02em;
            line-height: 1.28;
            max-width: 960px;
        }

        .page-hero .hero-lead {
            margin: 18px 0 0;
            color: rgba(255, 255, 255, .66);
            font-size: 16px;
            max-width: 760px;
        }

        /* ========= Main layout ========= */
        .article-section {
            padding: 48px 0 64px;
            background: var(--bg-section);
        }

        .article-grid {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 324px;
            gap: 36px;
            align-items: start;
        }

        .article-card {
            background: var(--bg-card);
            border-radius: var(--radius-card);
            border: 1px solid rgba(224, 227, 235, .8);
            box-shadow: var(--shadow-card);
            padding: 36px;
        }

        .article-label {
            color: var(--primary-base);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .12em;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .article-label::before {
            content: "";
            width: 22px;
            height: 2px;
            background: var(--neon-line);
        }

        .meta-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px 14px;
            color: var(--text-sub);
            font-size: 14px;
            padding-bottom: 22px;
            margin-bottom: 24px;
            border-bottom: 1px solid var(--border-line);
        }

        .meta-row span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .meta-row .dot {
            width: 3px;
            height: 3px;
            border-radius: 50%;
            background: #b6bcc9;
        }

        .meta-row a {
            color: var(--primary-base);
        }

        .meta-row a:hover {
            color: var(--primary-deep);
        }

        .update-note {
            background: #f5f8ff;
            border: 1px dashed #b8c4f5;
            border-radius: 12px;
            padding: 14px 16px;
            font-size: 14px;
            color: #4b5270;
            margin-bottom: 24px;
            display: flex;
            gap: 10px;
            align-items: flex-start;
        }

        .update-note strong {
            color: #35406b;
            white-space: nowrap;
        }

        /* ========= Rich content ========= */
        .rich-content {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-body);
            word-break: break-word;
        }

        .rich-content h2 {
            font-size: 25px;
            line-height: 1.4;
            font-weight: 800;
            color: #171a26;
            margin: 34px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--primary-base);
            letter-spacing: -.01em;
        }

        .rich-content h3 {
            font-size: 20px;
            line-height: 1.45;
            font-weight: 700;
            color: #1d2434;
            margin: 28px 0 12px;
        }

        .rich-content h4 {
            font-size: 17px;
            font-weight: 700;
            color: #2c3145;
            margin: 22px 0 10px;
        }

        .rich-content p {
            margin: 0 0 18px;
        }

        .rich-content ul,
        .rich-content ol {
            padding-left: 22px;
            margin: 0 0 20px;
        }

        .rich-content li {
            margin-bottom: 8px;
        }

        .rich-content blockquote {
            background: #f6f1ff;
            border-left: 3px solid var(--primary-light);
            color: #4d4065;
            padding: 14px 18px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }

        .rich-content table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            margin: 22px 0;
            display: block;
            overflow-x: auto;
            border: 1px solid var(--border-line);
            border-radius: 10px;
        }

        .rich-content th,
        .rich-content td {
            padding: 10px 12px;
            border-bottom: 1px solid var(--border-line);
            text-align: left;
            font-size: 15px;
        }

        .rich-content th {
            background: #f7f9ff;
            color: #2b3042;
            font-weight: 600;
        }

        .rich-content img {
            border-radius: 12px;
            box-shadow: 0 4px 18px rgba(0, 0, 0, .08);
        }

        .rich-content .highlight-box {
            background: #f0fbff;
            border: 1px solid #bee8f2;
            color: #2a4d57;
            border-radius: 12px;
            padding: 20px;
        }

        .rich-content .warn-box {
            background: #fff6f4;
            border: 1px solid #ffd3cb;
            color: #7d4035;
            border-radius: 12px;
            padding: 20px;
        }

        .rich-content a {
            color: var(--primary-base);
            border-bottom: 1px solid rgba(108, 77, 246, .3);
            transition: color .3s;
        }

        .rich-content a:hover {
            color: var(--primary-deep);
            border-bottom-color: var(--primary-deep);
        }

        /* Tags and footer actions */
        .article-tag-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 10px;
            margin: 28px 0 0;
            padding-top: 24px;
            border-top: 1px solid var(--border-line);
        }

        .article-tag-row .tag-title {
            font-size: 14px;
            color: var(--text-sub);
            font-weight: 600;
        }

        .article-tag-row a {
            display: inline-flex;
            align-items: center;
            padding: 6px 12px;
            background: #f3f4fb;
            border: 1px solid #e6e9f1;
            color: #4c5270;
            border-radius: 999px;
            font-size: 13px;
            transition: all .25s;
        }

        .article-tag-row a:hover {
            background: var(--primary-base);
            border-color: var(--primary-base);
            color: #fff;
        }

        .article-optbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 28px;
            padding-top: 20px;
            border-top: 1px dashed #cfd4e0;
        }

        .btn-primary,
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 8px;
            transition: all .28s ease;
            cursor: pointer;
            border: 0;
        }

        .btn-primary {
            background: var(--primary-base);
            color: #fff;
            box-shadow: 0 6px 18px rgba(108, 77, 246, .18);
        }

        .btn-primary:hover {
            background: var(--primary-deep);
            box-shadow: var(--shadow-cta);
            transform: translateY(-2px);
        }

        .btn-ghost {
            background: #fff;
            color: var(--primary-base);
            border: 1px solid #cfc5ff;
        }

        .btn-ghost:hover {
            border-color: var(--primary-base);
            background: #f8f5ff;
            transform: translateY(-2px);
        }

        .not-found-card {
            margin-top: 12px;
        }

        .not-found-card h2 {
            margin: 18px 0 8px;
        }

        .not-found-card p {
            color: var(--text-sub);
            margin: 0 0 26px;
        }

        /* ========= Sidebar ========= */
        .sidebar-column {
            display: flex;
            flex-direction: column;
            gap: 24px;
            position: sticky;
            top: 92px;
        }

        .side-card {
            background: #fff;
            border-radius: 14px;
            border: 1px solid rgba(224, 227, 235, .85);
            box-shadow: var(--shadow-card);
            padding: 22px;
        }

        .side-title {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 700;
            color: #1d2232;
            margin: 0 0 14px;
            padding-bottom: 10px;
            border-bottom: 1px solid var(--border-line);
        }

        .side-title::before {
            content: "";
            width: 18px;
            height: 3px;
            border-radius: 2px;
            background: var(--neon-line);
        }

        .side-links {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .side-links li {
            margin-bottom: 4px;
        }

        .side-links a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 10px 6px;
            color: var(--text-body);
            font-size: 14px;
            border-radius: 8px;
            transition: background .25s, color .25s, padding .25s;
        }

        .side-links a::after {
            content: "→";
            color: #a7adbe;
            font-size: 14px;
        }

        .side-links a:hover {
            background: #f5f3ff;
            color: var(--primary-base);
            padding-left: 10px;
        }

        .side-status {
            display: flex;
            align-items: center;
            gap: 10px;
            background: #f6faf6;
            border: 1px solid #dcebdd;
            padding: 10px 12px;
            border-radius: 10px;
            color: #3d6b44;
            font-size: 13px;
            margin-top: 12px;
        }

        .side-status .pulse {
            width: 8px;
            height: 8px;
            background: #33bf5f;
            border-radius: 50%;
            box-shadow: 0 0 0 0 rgba(51, 191, 95, .4);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% {
                box-shadow: 0 0 0 0 rgba(51, 191, 95, .4);
            }
            70% {
                box-shadow: 0 0 0 8px rgba(51, 191, 95, 0);
            }
            100% {
                box-shadow: 0 0 0 0 rgba(51, 191, 95, 0);
            }
        }

        /* ========= Related ========= */
        .related-section {
            padding: 40px 0 72px;
            background: #fff;
            border-top: 1px solid #eef0f5;
        }

        .section-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 24px;
        }

        .section-heading h2 {
            font-size: 24px;
            font-weight: 800;
            color: #151a28;
            margin: 0;
        }

        .section-heading .line {
            flex: 1;
            height: 1px;
            background: linear-gradient(90deg, #dfe3ed, transparent);
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: #fff;
            border: 1px solid #e8eaf1;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(19, 23, 40, .04);
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(56, 63, 100, .12);
        }

        .related-card .thumb {
            aspect-ratio: 16 / 8;
            overflow: hidden;
            position: relative;
        }

        .related-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .45s ease;
        }

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

        .related-card .body {
            padding: 16px 18px 18px;
        }

        .related-card h3 {
            margin: 0 0 6px;
            font-size: 17px;
        }

        .related-card h3 a {
            color: #202535;
            line-height: 1.5;
            transition: color .25s;
        }

        .related-card h3 a:hover {
            color: var(--primary-base);
        }

        .related-card .desc-text {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.7;
            margin: 6px 0 12px;
        }

        .related-card .rel-meta {
            color: #a5abbc;
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        /* ========= Service CTA ========= */
        .service-cta {
            background: linear-gradient(135deg, #121426, #202445 55%, #191c31);
            color: #fff;
            padding: 36px 0;
            border-top: 1px solid rgba(108, 77, 246, .35);
            border-bottom: 1px solid rgba(0, 0, 0, .4);
        }

        .service-cta .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 30px;
            flex-wrap: wrap;
        }

        .service-cta h3 {
            font-size: 24px;
            margin: 0 0 8px;
            font-weight: 750;
        }

        .service-cta p {
            color: rgba(255, 255, 255, .6);
            margin: 0;
            font-size: 14px;
        }

        .cta-button {
            display: inline-flex;
            align-items: center;
            background: #fff;
            color: #2b2542;
            padding: 12px 24px;
            border-radius: 8px;
            font-weight: 700;
            box-shadow: 0 0 0 0 rgba(255, 255, 255, .1);
            transition: all .3s;
        }

        .cta-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(0, 229, 255, .5);
            color: var(--primary-deep);
        }

        /* ========= FAQ mini ========= */
        .faq-section {
            padding: 62px 0 76px;
            background: var(--bg-section);
        }

        .faq-heading h2 {
            font-size: 28px;
            margin: 0 0 6px;
            letter-spacing: -.01em;
            font-weight: 800;
        }

        .faq-heading p {
            color: var(--text-sub);
            margin: 0;
        }

        .faq-grid {
            max-width: 920px;
            margin-top: 30px;
        }

        .faq-item {
            background: #fff;
            border: 1px solid #e5e8f0;
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
        }

        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 500;
            font-size: 16px;
            color: #232734;
            transition: background .25s;
        }

        .faq-item summary:hover {
            background: #f8f9fd;
        }

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

        .faq-item .faq-icon {
            flex: 0 0 26px;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: #efeaff;
            color: var(--primary-base);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            line-height: 1;
            transition: all .3s;
        }

        .faq-item[open] .faq-icon {
            background: var(--primary-base);
            color: #fff;
            transform: rotate(135deg);
        }

        .faq-item .answer {
            padding: 0 22px 20px;
            border-top: 1px dashed #eceef4;
            margin-top: 4px;
            color: #626a7c;
            font-size: 15px;
            padding-top: 14px;
            line-height: 1.8;
        }

        /* ========= Footer ========= */
        .footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, .72);
            padding: 52px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.1fr 1.4fr;
            gap: 36px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }

        .footer-brand-logo {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: .02em;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .footer-brand-logo span {
            color: var(--neon-line);
        }

        .footer-about-text {
            color: rgba(255, 255, 255, .52);
            font-size: 14px;
            line-height: 1.8;
            margin: 14px 0 0;
        }

        .footer-col-title {
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            margin: 4px 0 14px;
            letter-spacing: .02em;
        }

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

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, .58);
            font-size: 14px;
            transition: color .25s, padding-left .25s;
        }

        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-note-text {
            color: rgba(255, 255, 255, .48);
            font-size: 13px;
            line-height: 1.9;
            margin: 0;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            padding: 18px 0;
            color: rgba(255, 255, 255, .38);
            font-size: 13px;
        }

        /* ========= Responsive ========= */
        @media (max-width: 1100px) {
            .article-grid {
                grid-template-columns: 1fr;
            }

            .sidebar-column {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }

        @media (max-width: 1023px) {
            .nav-menu,
            .header-cta {
                display: none;
            }

            .burger-menu {
                display: flex;
            }

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

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

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

        @media (max-width: 768px) {
            .page-hero {
                padding: 44px 0 48px;
            }

            .page-hero h1 {
                font-size: 29px;
            }

            .article-card {
                padding: 24px 18px;
            }

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

            .sidebar-column {
                grid-template-columns: 1fr;
            }

            .service-cta h3 {
                font-size: 20px;
            }
        }

        @media (max-width: 640px) {
            .container-site {
                padding-left: 16px;
                padding-right: 16px;
            }

            .logo-text {
                font-size: 16px;
            }

            .logo-text small {
                font-size: 9px;
            }

            .header-inner {
                gap: 12px;
                height: 66px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 26px;
            }

            .article-section {
                padding: 28px 0 48px;
            }

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

            .breadcrumb .current {
                max-width: 170px;
            }
        }

/* roulang page: category2 */
:root {
        --bg-base:#0C0F18;
        --bg-deep:#090B12;
        --bg-section:#F3F5F9;
        --bg-card:#FFFFFF;
        --primary-light:#9D8CFF;
        --primary-base:#6C4DF6;
        --primary-deep:#4120D9;
        --neon-line:#00E5FF;
        --accent-bright:#F5B744;
        --danger-flag:#E34F4F;
        --warning-flag:#F2A93A;
        --text-header:#F0F2F8;
        --text-body:#232734;
        --text-sub:#626A7C;
        --text-mut:#9AA1B0;
        --border-light:#E0E3EB;
        --card-radius:16px;
        --shadow-sm:0 2px 12px rgba(28, 32, 46, 0.05);
        --shadow-md:0 18px 44px rgba(32, 28, 68, 0.09);
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        background: var(--bg-section);
        font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        color: var(--text-body);
        font-size: 16px;
        line-height: 1.8;
        -webkit-font-smoothing: antialiased;
    }

    ul,
    ol {
        list-style: none;
    }

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

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

    button {
        font-family: inherit;
        color: inherit;
        border: none;
        background: none;
        cursor: pointer;
    }

    .container-site {
        max-width: 1200px;
        margin-left: auto;
        margin-right: auto;
        padding-left: 24px;
        padding-right: 24px;
    }

    .section-pad {
        padding-top: 88px;
        padding-bottom: 88px;
    }

    .section-label {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 14px;
        font-weight: 600;
        letter-spacing: 0.06em;
        color: var(--primary-deep);
        background: rgba(108, 77, 246, 0.07);
        border: 1px solid rgba(108, 77, 246, 0.14);
        padding: 5px 14px 5px 10px;
        border-radius: 30px;
    }

    .section-label::before {
        content: "";
        width: 16px;
        height: 4px;
        border-radius: 4px;
        background: linear-gradient(90deg, var(--primary-base), var(--neon-line));
    }

    .block-title {
        font-size: 30px;
        line-height: 1.3;
        letter-spacing: -0.02em;
        color: #1B2030;
        font-weight: 700;
        margin-top: 16px;
    }

    .block-desc {
        color: var(--text-sub);
        font-size: 16px;
        max-width: 840px;
        margin-top: 12px;
    }

    .btn-primary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 44px;
        padding: 0 22px;
        background: var(--primary-base);
        color: #fff;
        border-radius: 10px;
        font-weight: 600;
        font-size: 15px;
        box-shadow: 0 10px 24px rgba(108, 77, 246, 0.2);
        transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
    }

    .btn-primary:hover {
        background: var(--primary-deep);
        box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.25), 0 10px 26px rgba(108, 77, 246, 0.24);
        transform: translateY(-1px);
    }

    .btn-ghost-light {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 44px;
        padding: 0 22px;
        background: transparent;
        color: #e8ecf7;
        border: 1px solid rgba(255, 255, 255, 0.35);
        border-radius: 10px;
        font-weight: 600;
        font-size: 15px;
        transition: border-color 0.2s, background 0.2s, color 0.2s;
    }

    .btn-ghost-light:hover {
        border-color: var(--neon-line);
        color: #fff;
        background: rgba(0, 229, 255, 0.08);
    }

    /* Header */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        background: rgba(11, 13, 24, 0.86);
        backdrop-filter: blur(14px);
        -webkit-backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    }

    .site-header::before {
        content: "";
        display: block;
        height: 2px;
        background: linear-gradient(90deg, var(--neon-line), var(--primary-base), transparent 70%);
        position: relative;
        z-index: 2;
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 68px;
        gap: 20px;
    }

    .logo-area {
        display: flex;
        align-items: center;
        gap: 11px;
        flex-shrink: 0;
    }

    .logo-mark {
        width: 36px;
        height: 36px;
        border-radius: 10px;
        background: linear-gradient(135deg, #6C4DF6 10%, #00E5FF 180%);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        font-weight: 800;
        box-shadow: 0 0 18px rgba(108, 77, 246, 0.36);
    }

    .logo-text {
        color: #F0F2F8;
        font-size: 17px;
        font-weight: 700;
        letter-spacing: 0.01em;
        line-height: 1.2;
    }

    .logo-text small {
        display: block;
        font-size: 10px;
        font-weight: 500;
        letter-spacing: 0.2em;
        color: #6A7080;
        margin-top: 2px;
    }

    .nav-menu {
        display: flex;
        align-items: center;
        gap: 2px;
    }

    .nav-menu a {
        display: block;
        padding: 10px 12px;
        color: #B7BDCC;
        font-size: 14px;
        border-bottom: 2px solid transparent;
        transition: color 0.2s, background 0.2s, text-shadow 0.2s;
        border-radius: 8px 8px 0 0;
        white-space: nowrap;
    }

    .nav-menu a:hover {
        color: #fff;
        background: rgba(108, 77, 246, 0.1);
    }

    .nav-menu a.active {
        color: #fff;
        border-bottom-color: var(--neon-line);
        background: rgba(108, 77, 246, 0.16);
        text-shadow: 0 0 10px rgba(0, 229, 255, 0.4);
    }

    .header-cta {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 42px;
        padding: 0 18px;
        background: var(--primary-base);
        color: #fff;
        border-radius: 8px;
        font-size: 14px;
        font-weight: 600;
        flex-shrink: 0;
        transition: background 0.2s, box-shadow 0.2s;
    }

    .header-cta:hover {
        background: var(--primary-deep);
        box-shadow: 0 0 16px rgba(108, 77, 246, 0.32);
    }

    .burger-menu {
        display: none;
        width: 44px;
        height: 44px;
        border-radius: 10px;
        border: 1px solid rgba(255, 255, 255, 0.12);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        background: transparent;
    }

    .burger-menu span {
        display: block;
        width: 20px;
        height: 2px;
        background: #fff;
        border-radius: 4px;
        transition: transform 0.25s, opacity 0.25s;
    }

    .burger-menu.open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .burger-menu.open span:nth-child(2) {
        opacity: 0;
    }

    .burger-menu.open span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .mobile-nav {
        display: none;
        background: rgba(7, 9, 16, 0.98);
        padding: 16px 24px 26px;
        box-shadow: 0 18px 32px rgba(0, 0, 0, 0.3);
    }

    .mobile-nav a {
        display: block;
        color: #C2C8D4;
        font-size: 15px;
        padding: 12px 6px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .mobile-nav a.active {
        color: #fff;
        border-left: 3px solid var(--neon-line);
        padding-left: 14px;
        background: rgba(108, 77, 246, 0.08);
        border-radius: 6px;
    }

    .mobile-nav .mobile-cta {
        background: var(--primary-base);
        color: #fff;
        text-align: center;
        border-radius: 9px;
        border: none;
        padding: 12px;
        margin-top: 12px;
    }

    @media (min-width: 1025px) {
        .mobile-nav {
            display: none !important;
        }
    }

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

        .burger-menu {
            display: flex;
        }

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

    /* Hero */
    .category-hero {
        position: relative;
        background-color: var(--bg-base);
        background-image:
            linear-gradient(104deg, rgba(9, 11, 18, 0.94) 20%, rgba(9, 11, 18, 0.7) 58%, rgba(13, 14, 24, 0.55) 100%),
            url("/assets/images/backpic/back-2.webp");
        background-size: cover;
        background-position: center;
        padding: 70px 0 76px;
        color: var(--text-header);
        overflow: hidden;
    }

    .category-hero::after {
        content: "";
        position: absolute;
        right: -80px;
        top: -90px;
        width: 320px;
        height: 320px;
        border-radius: 50%;
        border: 1px solid rgba(0, 229, 255, 0.22);
        pointer-events: none;
    }

    .hero-entry-badge {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: rgba(255, 255, 255, 0.07);
        border: 1px solid rgba(0, 229, 255, 0.25);
        color: #DDE5FF;
        font-size: 13px;
        padding: 6px 13px;
        border-radius: 30px;
        letter-spacing: 0.04em;
    }

    .hero-entry-badge i {
        font-style: normal;
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--neon-line);
        box-shadow: 0 0 12px rgba(0, 229, 255, 0.6);
    }

    .category-hero h1 {
        font-size: 42px;
        line-height: 1.25;
        max-width: 920px;
        margin: 20px 0 16px;
        letter-spacing: -0.02em;
    }

    .category-hero .hero-sub {
        color: #B4BCCB;
        max-width: 760px;
        font-size: 17px;
    }

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

    .hero-security-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 16px;
        margin-top: 30px;
        color: #8C94A8;
        font-size: 13px;
    }

    .hero-security-tags span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .hero-security-tags span::before {
        content: "✓";
        color: var(--neon-line);
        font-weight: 700;
    }

    /* sub nav */
    .cate-subnav {
        background: #0F111C;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }

    .cate-subnav-scroll {
        display: flex;
        align-items: center;
        gap: 10px;
        padding-top: 16px;
        padding-bottom: 16px;
        overflow-x: auto;
    }

    .cate-subnav-scroll .subnav-title {
        color: #5F6C84;
        font-size: 13px;
        margin-right: 8px;
        white-space: nowrap;
    }

    .cate-subnav-scroll a {
        display: inline-block;
        color: #B6BCC9;
        border: 1px solid rgba(255, 255, 255, 0.1);
        padding: 7px 14px;
        border-radius: 30px;
        white-space: nowrap;
        font-size: 14px;
        transition: all 0.2s;
    }

    .cate-subnav-scroll a:hover,
    .cate-subnav-scroll a.on {
        background: rgba(108, 77, 246, 0.22);
        color: #fff;
        border-color: rgba(0, 229, 255, 0.4);
    }

    /* alert strips */
    .alert-strips {
        padding-top: 42px;
        padding-bottom: 0;
    }

    .alert-strip-grid {
        display: grid;
        gap: 18px;
        max-width: 1080px;
        margin: 0 auto;
    }

    .alert-danger,
    .alert-warning {
        border-radius: 14px;
        padding: 20px 22px;
        display: flex;
        align-items: flex-start;
        gap: 14px;
        font-size: 15px;
    }

    .alert-danger {
        background: #FDE9E9;
        border: 1px solid #F3B6B6;
        color: #9A2B2B;
    }

    .alert-danger strong {
        color: #B82D2D;
        margin-right: 4px;
    }

    .alert-warning {
        background: #FCF1D9;
        border: 1px solid #EED49A;
        color: #855014;
    }

    .alert-warning strong {
        color: #B4690D;
        margin-right: 4px;
    }

    .alert-icon {
        flex-shrink: 0;
        width: 34px;
        height: 34px;
        border-radius: 10px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        font-weight: 800;
    }

    .alert-danger .alert-icon {
        background: #E34F4F;
        color: #fff;
    }

    .alert-warning .alert-icon {
        background: #F2A93A;
        color: #fff;
    }

    /* risk grid */
    .security-warning-section {
        background: #fff;
    }

    .risk-grid {
        display: grid;
        grid-template-columns: repeat(12, minmax(0, 1fr));
        gap: 22px;
        margin-top: 38px;
    }

    .risk-card {
        grid-column: span 3;
        background: var(--bg-section);
        border: 1px solid var(--border-light);
        border-radius: var(--card-radius);
        padding: 26px 22px;
        transition: transform 0.25s, box-shadow 0.25s;
    }

    .risk-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 16px 32px rgba(35, 39, 52, 0.08);
    }

    .risk-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 12px;
        background: rgba(227, 79, 79, 0.09);
        color: #D13D3D;
        font-size: 21px;
        margin-bottom: 14px;
    }

    .risk-card h3 {
        font-size: 18px;
        line-height: 1.45;
        font-weight: 700;
    }

    .risk-card p {
        color: var(--text-sub);
        font-size: 14px;
        margin-top: 8px;
    }

    .risk-card .risk-note {
        margin-top: 14px;
        padding-top: 15px;
        border-top: 1px dashed #D4D8E2;
        font-size: 13px;
        color: #42485A;
        display: flex;
        align-items: flex-start;
        gap: 6px;
    }

    .risk-card .risk-note strong {
        color: var(--danger-flag);
    }

    /* core + aside split */
    .security-core-wrap {
        display: grid;
        grid-template-columns: minmax(0, 1fr) 390px;
        gap: 26px;
        align-items: start;
        margin-top: 42px;
    }

    .security-core-list {
        background: #fff;
        border-radius: var(--card-radius);
        box-shadow: var(--shadow-sm);
        padding: 30px;
        border: 1px solid #E8EAF0;
    }

    .security-core-list h3 {
        font-size: 22px;
        font-weight: 700;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .security-core-list h3 span {
        width: 10px;
        height: 26px;
        background: var(--neon-line);
        display: inline-block;
        border-radius: 5px;
        box-shadow: 0 0 14px rgba(0, 229, 255, 0.4);
    }

    .core-item {
        display: flex;
        gap: 16px;
        padding: 22px 0;
        border-bottom: 1px solid #EDEFF4;
    }

    .core-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }

    .core-number {
        flex-shrink: 0;
        width: 38px;
        height: 38px;
        border-radius: 12px;
        background: rgba(108, 77, 246, 0.08);
        color: var(--primary-base);
        font-weight: 800;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
    }

    .core-item h4 {
        font-size: 17px;
        color: #21273A;
        margin-bottom: 4px;
    }

    .core-item p {
        font-size: 15px;
        color: #5A6274;
    }

    .side-status-card {
        background: #fff;
        border: 1px solid #E8EAF0;
        border-radius: var(--card-radius);
        box-shadow: var(--shadow-md);
        overflow: hidden;
    }

    .side-status-cover {
        height: 178px;
        overflow: hidden;
        position: relative;
        background-color: #EAECF2;
    }

    .side-status-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .side-status-cover::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        bottom: 0;
        height: 55px;
        background: linear-gradient(transparent, rgba(0, 0, 0, 0.24));
    }

    .side-status-inner {
        padding: 20px 20px 22px;
    }

    .side-status-line {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 10px;
        color: #666E81;
        font-size: 13px;
        border-bottom: 1px dashed #E3E6EF;
        padding-bottom: 13px;
    }

    .status-badge {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: #E6FAF2;
        color: #178A64;
        border-radius: 30px;
        padding: 4px 10px;
        font-size: 12px;
        font-weight: 600;
    }

    .status-badge i {
        width: 6px;
        height: 6px;
        background: #2BC58C;
        border-radius: 50%;
        box-shadow: 0 0 7px #2BC58C;
        font-style: normal;
    }

    .side-menu-title {
        margin-top: 16px;
        font-size: 14px;
        font-weight: 700;
        color: #333A4D;
    }

    .side-menu-list li {
        padding: 8px 0;
        border-bottom: 1px solid #F1F2F6;
        font-size: 14px;
        color: #5E6473;
        display: flex;
        align-items: center;
        gap: 9px;
    }

    .side-menu-list li::before {
        content: "";
        width: 12px;
        height: 3px;
        background: linear-gradient(90deg, var(--primary-base), var(--neon-line));
        border-radius: 6px;
    }

    .side-card-action {
        margin-top: 16px;
        width: 100%;
    }

    /* contrast table */
    .safety-table-section {
        background: #F0F2F7;
    }

    .safety-table-wrap {
        background: #fff;
        border-radius: 18px;
        border: 1px solid #E1E4EC;
        margin-top: 32px;
        overflow-x: auto;
        box-shadow: var(--shadow-sm);
    }

    .safety-table {
        width: 100%;
        border-collapse: collapse;
        min-width: 700px;
    }

    .safety-table th {
        font-size: 13px;
        text-align: left;
        background: #F7F8FC;
        color: #464D60;
        padding: 14px 16px;
        border-bottom: 1px solid #DCDEE7;
        letter-spacing: 0.02em;
        white-space: nowrap;
    }

    .safety-table td {
        padding: 19px 16px;
        border-bottom: 1px solid #EDEFF4;
        font-size: 15px;
        vertical-align: top;
        line-height: 1.75;
    }

    .safety-table tr:last-child td {
        border-bottom: none;
    }

    .safety-tag-safe,
    .safety-tag-risky {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        font-weight: 600;
        font-size: 14px;
        border-radius: 30px;
        padding: 3px 9px;
    }

    .safety-tag-safe {
        background: #E8F9F1;
        color: #138760;
    }

    .safety-tag-risky {
        background: #FCE8E8;
        color: #BE2D2D;
    }

    /* governance strip */
    .principle-bar-dark {
        background: #111321;
        background-image: radial-gradient(circle at 90% 20%, rgba(108, 77, 246, 0.16) 0%, transparent 46%), linear-gradient(113deg, #10131F 0%, #0B0D16 70%);
        color: #D8DCE6;
        padding: 50px 0;
    }

    .principle-grid {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 36px;
    }

    .principle-item {
        border-left: 2px solid rgba(108, 77, 246, 0.55);
        padding: 2px 0 2px 22px;
    }

    .principle-item h4 {
        color: #fff;
        font-size: 18px;
        margin-bottom: 6px;
    }

    .principle-item p {
        font-size: 14px;
        color: #929AAA;
    }

    /* FAQ */
    .faq-section {
        background: #fff;
    }

    .faq-list {
        max-width: 880px;
        margin: 34px auto 0;
    }

    .faq-item {
        background: #FCFFFF;
        border: 1px solid #DFE3ED;
        border-radius: 14px;
        margin-bottom: 12px;
        overflow: hidden;
        transition: border-color 0.2s;
    }

    .faq-item.open {
        border-color: #B3A9EE;
        box-shadow: 0 10px 22px rgba(54, 43, 124, 0.06);
    }

    .faq-question {
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        padding: 18px 22px;
        text-align: left;
        font-size: 16px;
        font-weight: 600;
        color: #232738;
        cursor: pointer;
        transition: background 0.2s;
    }

    .faq-question:hover {
        background: #F3F5FA;
    }

    .faq-item.open .faq-question {
        background: #F4F6FD;
        border-bottom: 1px solid #E4EAF7;
    }

    .faq-icon {
        color: var(--primary-base);
        font-size: 24px;
        font-weight: 400;
        line-height: 1;
        transition: transform 0.3s;
        flex-shrink: 0;
    }

    .faq-item.open .faq-icon {
        transform: rotate(45deg);
    }

    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.35s ease;
        background: #F7F9FD;
        border-left: 3px solid var(--neon-line);
    }

    .faq-answer p {
        padding: 18px 24px 21px;
        font-size: 15px;
        color: #4A5266;
    }

    .faq-more {
        text-align: center;
        margin-top: 20px;
    }

    .faq-more a {
        color: var(--primary-base);
        font-weight: 600;
        border-bottom: 1px solid rgba(108, 77, 246, 0.3);
        transition: color 0.2s, border-color 0.2s;
        padding-bottom: 2px;
    }

    .faq-more a:hover {
        color: var(--primary-deep);
        border-color: var(--primary-deep);
    }

    /* CTA band */
    .cta-deep-band {
        background: linear-gradient(112deg, #141828, #0C0F1A 68%);
        position: relative;
        overflow: hidden;
        padding: 72px 0;
        color: #fff;
    }

    .cta-deep-band::after {
        content: "";
        width: 260px;
        height: 260px;
        right: 4%;
        bottom: -78%;
        position: absolute;
        border-radius: 50%;
        border: 30px solid rgba(0, 229, 255, 0.07);
        pointer-events: none;
    }

    .cta-deep-band::before {
        content: "";
        width: 200px;
        height: 200px;
        left: -70px;
        top: -90px;
        position: absolute;
        border-radius: 50%;
        background: rgba(108, 77, 246, 0.12);
        filter: blur(28px);
        pointer-events: none;
    }

    .cta-content {
        position: relative;
        z-index: 1;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 30px;
        flex-wrap: wrap;
    }

    .cta-copy h2 {
        font-size: 28px;
        line-height: 1.35;
        margin-bottom: 8px;
    }

    .cta-copy p {
        color: #A8AFBE;
        font-size: 15px;
    }

    .cta-button-row {
        display: flex;
        gap: 14px;
        flex-wrap: wrap;
    }

    /* footer */
    .footer {
        background: var(--bg-deep);
        color: #93A0B0;
        padding-top: 44px;
        border-top: 2px solid rgba(0, 229, 255, 0.15);
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 0.9fr 0.9fr 1.2fr;
        gap: 32px;
        padding-bottom: 28px;
    }

    .footer-brand-logo {
        font-size: 21px;
        font-weight: 800;
        color: #fff;
        line-height: 1.5;
    }

    .footer-brand-logo span {
        color: var(--neon-line);
        font-weight: 500;
    }

    .footer-about-text {
        font-size: 14px;
        line-height: 1.8;
        margin-top: 10px;
        color: #79869A;
        max-width: 300px;
    }

    .footer-col-title {
        color: #E8ECF5;
        font-weight: 700;
        font-size: 15px;
        margin-bottom: 14px;
        border-left: 2px solid var(--primary-base);
        padding-left: 10px;
    }

    .footer-links li {
        margin-bottom: 8px;
    }

    .footer-links a {
        color: #8793A6;
        font-size: 14px;
        transition: color 0.2s;
    }

    .footer-links a:hover {
        color: var(--neon-line);
    }

    .footer-note-text {
        font-size: 13px;
        color: #6C7788;
        line-height: 1.8;
    }

    .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.07);
        display: flex;
        justify-content: space-between;
        gap: 20px;
        padding: 20px 0 22px;
        font-size: 13px;
        color: #596678;
        flex-wrap: wrap;
    }

    /* Responsive */
    @media (max-width: 1199px) {
        .risk-card {
            grid-column: span 6;
        }
    }

    @media (max-width: 991px) {
        .category-hero h1 {
            font-size: 38px;
        }

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

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

    @media (max-width: 767px) {
        .section-pad {
            padding-top: 64px;
            padding-bottom: 64px;
        }

        .block-title {
            font-size: 26px;
        }

        .category-hero {
            padding: 44px 0 54px;
        }

        .category-hero h1 {
            font-size: 30px;
        }

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

        .risk-grid {
            gap: 14px;
        }

        .risk-card {
            grid-column: span 12;
            padding: 22px 18px;
        }

        .principle-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 26px;
        }

        .footer-bottom {
            flex-direction: column;
        }

        .cta-content {
            flex-direction: column;
            align-items: flex-start;
        }

        .cta-copy h2 {
            font-size: 24px;
        }

        .alert-danger,
        .alert-warning {
            flex-direction: column;
        }
    }

    @media (min-width: 640px) {
        .alert-strip-grid {
            grid-template-columns: 1fr 1fr;
        }
    }

/* roulang page: category3 */
:root {
            --bg-base: #0C0F18;
            --bg-section: #F3F5F9;
            --bg-card: #FFFFFF;
            --primary-light: #9D8CFF;
            --primary-base: #6C4DF6;
            --primary-deep: #4120D9;
            --neon-line: #00E5FF;
            --accent-bright: #F5B744;
            --danger-flag: #E34F4F;
            --text-header: #F0F2F8;
            --text-body: #232734;
            --text-sub: #626A7C;
            --border-light: #E0E3EB;
        }

        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "sans-serif";
            color: var(--text-body);
            background: var(--bg-section);
            line-height: 1.7;
            font-size: 16px;
        }
        a, button, input, textarea {
            transition: all .2s ease;
        }
        a {
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }

        .container-site {
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }
        @media (min-width:768px) {
            .container-site {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ---------- Header / Nav ---------- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            background: rgba(11, 13, 21, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--neon-line), var(--primary-base), transparent 65%);
            pointer-events: none;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            gap: 1rem;
        }
        .logo-area {
            display: flex;
            align-items: center;
            gap: .65rem;
            flex-shrink: 0;
        }
        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--primary-base), var(--primary-deep));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            border: 1px solid rgba(0, 229, 255, .55);
            box-shadow: 0 0 12px rgba(0, 229, 255, .15);
        }
        .logo-text {
            color: var(--text-header);
            font-weight: 700;
            font-size: 17px;
            line-height: 1.25;
            letter-spacing: .02em;
        }
        .logo-text small {
            display: block;
            font-size: 9px;
            color: #8B90A3;
            letter-spacing: .16em;
            margin-top: 2px;
        }
        .nav-menu {
            display: none;
            list-style: none;
            margin: 0;
            padding: 0;
            align-items: center;
            gap: .25rem;
        }
        .nav-menu a {
            display: block;
            padding: .6rem .75rem;
            color: #B8BED0;
            font-size: 14.5px;
            letter-spacing: .08em;
            border-radius: 8px;
            border-bottom: 2px solid transparent;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            color: #fff;
        }
        .nav-menu a.active {
            color: #fff;
            border-bottom-color: var(--neon-line);
            text-shadow: 0 0 8px rgba(0, 229, 255, .7);
        }
        .header-cta {
            display: none;
            align-items: center;
            background: var(--primary-base);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, .08);
            padding: .55rem 1.1rem;
            border-radius: 8px;
            letter-spacing: .04em;
            white-space: nowrap;
        }
        .header-cta:hover {
            background: var(--primary-deep);
            box-shadow: 0 0 14px rgba(0, 229, 255, .28);
        }
        .burger-menu {
            display: flex;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            background: transparent;
            border: 0;
            border-radius: 8px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }
        .burger-menu span {
            width: 22px;
            height: 2px;
            background: #D3D8E6;
            border-radius: 2px;
            transition: .2s;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: rgba(9, 10, 16, .98);
            padding: .5rem 1rem 1.25rem;
            gap: .2rem;
            border-top: 1px solid rgba(255, 255, 255, .07);
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            padding: .7rem .6rem;
            color: #CBD2E0;
            font-size: 15px;
            border-radius: 8px;
            border-left: 2px solid transparent;
        }
        .mobile-nav a.active {
            color: #fff;
            border-left-color: var(--neon-line);
            background: rgba(255, 255, 255, .05);
        }
        .mobile-nav .mobile-cta {
            margin-top: .5rem;
            background: var(--primary-base);
            color: #fff;
            text-align: center;
            border-radius: 8px;
            font-weight: 600;
        }
        @media (min-width: 1024px) {
            .nav-menu {
                display: flex;
            }
            .header-cta {
                display: inline-flex;
            }
            .burger-menu {
                display: none;
            }
        }

        /* ---------- Buttons / Badges ---------- */
        .btn-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .4rem;
            background: var(--primary-base);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: .8rem 1.5rem;
            border-radius: 8px;
            border: 1px solid transparent;
            cursor: pointer;
        }
        .btn-main:hover {
            background: var(--primary-deep);
            box-shadow: 0 0 14px rgba(0, 229, 255, .25);
            transform: translateY(-1px);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            border: 1px solid rgba(255, 255, 255, .38);
            color: #EDEFFF;
            font-weight: 600;
            font-size: 15px;
            padding: .8rem 1.5rem;
            border-radius: 8px;
            background: transparent;
            cursor: pointer;
        }
        .btn-outline-light:hover {
            border-color: var(--neon-line);
            background: rgba(0, 229, 255, .06);
            color: #fff;
        }
        .badge-status {
            display: inline-flex;
            align-items: center;
            gap: .35rem;
            background: rgba(0, 229, 255, .06);
            border: 1px solid rgba(0, 229, 255, .3);
            color: var(--neon-line);
            font-size: 12px;
            padding: .2rem .6rem;
            border-radius: 999px;
            line-height: 1.6;
        }
        .badge-status::before {
            content: '';
            width: 6px;
            height: 6px;
            background: var(--neon-line);
            border-radius: 50%;
            box-shadow: 0 0 6px var(--neon-line);
        }
        .warn-mark {
            display: inline-flex;
            align-items: center;
            gap: .3rem;
            background: rgba(227, 79, 79, .1);
            color: #B22F2F;
            border: 1px solid rgba(227, 79, 79, .2);
            font-size: 12px;
            padding: .2rem .6rem;
            border-radius: 6px;
        }
        .tag-chip {
            font-size: 12px;
            background: #F0F1F7;
            padding: .24rem .65rem;
            border-radius: 6px;
            color: #565E70;
            white-space: nowrap;
        }

        /* ---------- Page Hero ---------- */
        .page-hero {
            margin-top: 68px;
            background-color: #0C0F18;
            position: relative;
            color: var(--text-header);
            background-image: url('/assets/images/backpic/back-2.webp');
            background-position: center;
            background-repeat: no-repeat;
            background-size: cover;
            padding: 3.8rem 0 4.6rem;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(10, 12, 20, 0.97) 28%, rgba(13, 18, 33, 0.8) 70%, rgba(10, 12, 22, 0.45));
            z-index: 1;
        }
        .page-hero .container-site {
            position: relative;
            z-index: 2;
        }
        .hero-overline {
            display: flex;
            align-items: center;
            gap: .6rem;
            color: #AAB0C2;
            font-size: 13px;
            letter-spacing: .08em;
            margin-bottom: 1.1rem;
            text-transform: uppercase;
        }
        .hero-overline .line {
            width: 36px;
            height: 1px;
            background: var(--neon-line);
            box-shadow: 0 0 8px rgba(0, 229, 255, .45);
        }
        .page-hero h1 {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: #fff;
            max-width: 820px;
            margin-bottom: .9rem;
        }
        .page-hero .hero-desc {
            color: #BDC3D7;
            max-width: 650px;
            font-size: 16px;
            margin-bottom: 1.7rem;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: .8rem;
        }
        @media (min-width: 640px) {
            .page-hero {
                padding: 4.5rem 0 5.5rem;
            }
            .page-hero h1 {
                font-size: 40px;
            }
        }
        @media (min-width: 1024px) {
            .page-hero h1 {
                font-size: 46px;
            }
            .page-hero .hero-desc {
                font-size: 17px;
            }
        }

        /* ---------- Sub Nav rows ---------- */
        .section-tabbar {
            background: #EDF0F6;
            border-bottom: 1px solid var(--border-light);
        }
        .section-tabbar .inner {
            display: flex;
            flex-wrap: wrap;
            gap: .6rem;
            align-items: center;
            padding: .9rem 1.25rem;
            max-width: 1280px;
            margin: 0 auto;
        }
        .section-tabbar .tab-label {
            font-size: 13px;
            color: var(--text-sub);
            padding-right: .2rem;
        }
        .section-anchor {
            background: rgba(255, 255, 255, 0.3);
            border: 1px solid #D6DAE8;
            color: #3C4252;
            font-size: 13.5px;
            font-weight: 600;
            border-radius: 999px;
            padding: .48rem 1.2rem;
            display: inline-flex;
            align-items: center;
            gap: .4rem;
            white-space: nowrap;
        }
        .section-anchor i {
            width: 6px;
            height: 6px;
            background: var(--neon-line);
            border-radius: 50%;
            box-shadow: 0 0 6px rgba(0, 229, 255, .6);
        }
        .section-anchor:hover {
            background: #fff;
            border-color: var(--primary-base);
            color: var(--primary-deep);
        }

        /* ---------- Generic Blocks ---------- */
        .section-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 1rem;
            margin-bottom: 1.8rem;
        }
        .section-heading .eyebrow {
            display: flex;
            align-items: center;
            gap: .5rem;
            color: var(--primary-base);
            font-weight: 700;
            font-size: 13px;
            letter-spacing: .12em;
            margin-bottom: .4rem;
        }
        .section-heading .eyebrow .e-line {
            width: 24px;
            height: 2px;
            background: var(--neon-line);
        }
        .section-heading h2 {
            font-size: 24px;
            font-weight: 800;
            color: #1C2130;
            line-height: 1.3;
            letter-spacing: -0.01em;
            margin: 0;
        }
        .section-heading .heading-note {
            color: var(--text-sub);
            font-size: 14px;
            max-width: 360px;
        }
        @media (min-width: 768px) {
            .section-heading h2 {
                font-size: 28px;
            }
        }

        .icon-badge {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(108, 77, 246, 0.1);
            color: var(--primary-base);
            border: 1px solid rgba(108, 77, 246, .15);
            flex-shrink: 0;
        }
        .icon-badge svg {
            width: 22px;
            height: 22px;
        }

        /* ---------- Step Flow (category 3 highlight) ---------- */
        .flow-steps {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }
        .flow-step-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 14px;
            padding: 1.4rem;
            position: relative;
            box-shadow: 0 2px 5px rgba(20, 25, 40, .03);
        }
        .flow-step-card .step-line {
            display: flex;
            align-items: center;
            gap: .6rem;
            margin-bottom: .7rem;
        }
        .flow-step-card .step-num {
            width: 30px;
            height: 30px;
            border-radius: 8px;
            background: var(--primary-base);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 14px;
            font-weight: 700;
        }
        .flow-step-card h3 {
            font-size: 16px;
            color: #212633;
            font-weight: 700;
        }
        .flow-step-card p {
            color: #566073;
            font-size: 14px;
            margin: 0;
            line-height: 1.7;
        }
        .flow-step-card + .flow-step-card::before {
            content: '';
            display: none;
            width: 22px;
            height: 2px;
            background: var(--neon-line);
        }
        .flow-connect {
            display: none;
        }
        @media (min-width: 1024px) {
            .flow-steps {
                grid-template-columns: repeat(4, 1fr);
                gap: 1.15rem;
            }
            .flow-step-card + .flow-step-card {
                margin-left: 0;
            }
            .flow-step-card {
                padding: 1.25rem 1.1rem;
            }
            .flow-step-card h3 {
                font-size: 15px;
            }
            .flow-connect {
                display: block;
                position: relative;
            }
        }

        /* ---------- Cards common ---------- */
        .card-light {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: 14px;
            padding: 1.5rem;
            box-shadow: 0 2px 4px rgba(20, 25, 40, .02);
        }
        .card-light h3 {
            font-size: 18px;
            margin: 0 0 .6rem;
            color: #202534;
            font-weight: 700;
        }
        .card-light .card-title-sec {
            font-size: 14px;
        }
        .card-light p {
            color: #566073;
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 1rem;
        }
        .icon-person svg {
            width: 52px;
            height: 52px;
        }

        /* ---------- Two-col layout ---------- */
        .two-col-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }
        @media (min-width: 1024px) {
            .two-col-layout {
                grid-template-columns: minmax(0, 1fr) 320px;
                gap: 2.5rem;
            }
        }
        .side-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 14px;
            overflow: hidden;
        }
        .side-card img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .side-card .sc-body {
            padding: 1.2rem;
        }
        .side-card h3 {
            font-size: 15px;
            font-weight: 700;
            margin: 0 0 .8rem;
            color: #202534;
        }
        .side-list {
            list-style: none;
            margin: 0 0 1.2rem;
            padding: 0;
        }
        .side-list li {
            border-bottom: 1px dashed #E4E7EF;
            padding: .45rem 0;
            font-size: 13.5px;
            color: #596176;
        }
        .side-list li a {
            color: #566073;
        }
        .side-list li a:hover {
            color: var(--primary-base);
        }
        .service-status {
            display: flex;
            align-items: center;
            gap: .5rem;
            background: #F5F6F9;
            padding: .7rem .9rem;
            border-radius: 10px;
        }
        .status-dot {
            width: 8px;
            height: 8px;
            background: #20C05A;
            border-radius: 50%;
            box-shadow: 0 0 0 3px rgba(32,192,90,.18);
        }
        .service-status .stat-label {
            font-size: 13px;
            color: #484F5E;
        }
        .service-status .stat-time {
            margin-left: auto;
            font-size: 12px;
            color: #8D95A5;
        }

        /* ---------- Warn block ---------- */
        .warn-panel {
            background: rgba(227, 79, 79, 0.055);
            border: 1px solid rgba(227, 79, 79, 0.18);
            border-radius: 14px;
            padding: 1.5rem 1.6rem;
            position: relative;
        }
        .warn-panel h4 {
            color: #B02E2E;
            font-size: 15px;
            display: flex;
            align-items: center;
            gap: .6rem;
            margin-bottom: .5rem;
        }
        .warn-panel p {
            color: #6E3B3B;
            font-size: 14px;
            line-height: 1.8;
        }
        .warn-panel ul {
            margin: .4rem 0 0;
            padding-left: 1rem;
            color: #6E3B3B;
            font-size: 13.5px;
        }

        /* ---------- Troubleshooting cards ---------- */
        .compare-grid-issue {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1rem;
        }
        @media (min-width: 768px) {
            .compare-grid-issue {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (min-width: 1280px) {
            .compare-grid-issue {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        .issue-card {
            background: #fff;
            border: 1px solid var(--border-light);
            border-radius: 14px;
            padding: 1.35rem;
        }
        .issue-card .issue-top {
            display: flex;
            align-items: flex-start;
            gap: .8rem;
            margin-bottom: .8rem;
        }
        .issue-card .issue-tag {
            display: flex;
            align-items: center;
            background: #ECEEF7;
            color: #2E3443;
            font-size: 13px;
            border-radius: 50px;
            padding: .2rem .7rem;
            margin-top: 1px;
        }
        .issue-card h3 {
            font-size: 16.5px;
            font-weight: 700;
            color: #202534;
            margin: 0;
        }
        .issue-card .err-code {
            font-size: 13px;
            color: #727A8E;
            margin-top: 2px;
        }
        .issue-card p {
            color: #616777;
            font-size: 14px;
        }
        .issue-card .do-suggestion {
            background: #F4F6FA;
            border-radius: 8px;
            padding: .5rem .8rem;
            font-size: 13.5px;
            color: #485165;
            line-height: 1.7;
        }

        /* ---------- FAQ (custom) ---------- */
        .faq-section {
            background: var(--bg-section);
        }
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
            border-top: 1px solid var(--border-light);
        }
        .faq-item {
            background: #FFFFFF;
            border-bottom: 1px solid var(--border-light);
            padding: 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            background: transparent;
            border: 0;
            text-align: left;
            width: 100%;
            padding: 1.15rem 1.2rem;
            cursor: pointer;
            font-size: 16px;
            line-height: 1.5;
            color: #222737;
            font-weight: 600;
        }
        .faq-question:hover {
            color: var(--primary-base);
        }
        .faq-question .faq-btn {
            display: flex;
            width: 28px;
            height: 28px;
            flex-shrink: 0;
            background: rgba(108, 77, 246, 0.1);
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--primary-base);
            transition: transform .3s;
        }
        .faq-item.open .faq-btn {
            transform: rotate(135deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            background: #F7F9FC;
            border-left: 3px solid var(--primary-base);
            transition: max-height .3s ease, padding .3s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 250px;
            padding: 1rem 1.3rem;
        }
        .faq-answer p {
            color: #525A6C;
            font-size: 14.5px;
            line-height: 1.85;
            margin: 0;
        }

        /* ---------- CTA ---------- */
        .soft-cta {
            background: linear-gradient(120deg, #141827, #0D1020);
            color: #fff;
            position: relative;
            overflow: hidden;
            border-radius: 18px;
            padding: 2rem 1.5rem;
        }
        .soft-cta .circle-glow {
            position: absolute;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(0, 229, 255, .18), transparent 70%);
            right: -50px;
            top: -80px;
            pointer-events: none;
        }
        .soft-cta .circle-glow.c2 {
            left: -30px;
            right: auto;
            bottom: -90px;
            top: auto;
            background: radial-gradient(circle, rgba(108, 77, 246, .26), transparent 70%);
        }
        .soft-cta h3 {
            font-size: 24px;
            color: #fff;
            line-height: 1.4;
            margin-bottom: .5rem;
            font-weight: 800;
        }
        .soft-cta p {
            color: #AEB7CB;
            font-size: 14px;
            max-width: 520px;
        }

        /* ---------- Footer ---------- */
        .footer {
            background: #090B12;
            padding-top: 3.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            padding-bottom: 2.2rem;
        }
        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            }
        }
        .footer-brand-logo {
            font-size: 20px;
            font-weight: 800;
            color: #E8EAEF;
            margin-bottom: .7rem;
        }
        .footer-brand-logo span {
            color: var(--neon-line);
            font-weight: 600;
        }
        .footer-about-text {
            color: #7D8495;
            font-size: 13.5px;
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-col-title {
            color: #D2D7E4;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
            display: flex;
            flex-direction: column;
            gap: .45rem;
        }
        .footer-links a {
            color: #868FA3;
            font-size: 14px;
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-note-text {
            color: #70788C;
            font-size: 13px;
            line-height: 1.8;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            padding: 1.2rem 0;
            display: flex;
            flex-direction: column;
            flex-wrap: wrap;
            gap: .3rem;
            color: #5D6575;
            font-size: 13px;
            justify-content: space-between;
        }
        @media (min-width: 768px) {
            .footer-bottom {
                flex-direction: row;
            }
        }

        /* ---------- Mobile skeleton visual ---------- */
        .phone-mock-wrapper {
            display: flex;
            align-items: center;
            justify-content: center;
            padding-top: 1rem;
        }
        .phone-mock {
            width: 160px;
            height: 280px;
            border-radius: 24px;
            border: 3px solid rgba(255,255,255,.2);
            background: rgba(255,255,255,.04);
            box-shadow: 0 0 25px rgba(0, 229, 255, .15);
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 2rem 1rem 1.2rem;
            gap: .5rem;
        }
        .phone-mock::before {
            content: '';
            width: 50px;
            height: 4px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .18);
            margin-bottom: .4rem;
        }
        .phone-mock .mock-line {
            width: 85%;
            height: 9px;
            border-radius: 4px;
            background: rgba(255,255,255,.12);
        }
        .phone-mock .mock-line.w40 {
            width: 60%;
        }
        .phone-mock .mock-btn {
            width: 60%;
            height: 28px;
            border-radius: 8px;
            background: rgba(0,229,255,.22);
            margin-top: .6rem;
            border: 1px solid rgba(0,229,255,.3);
        }
        .phone-mock .mock-check {
            display: flex;
            align-items: center;
            gap: .3rem;
            margin-top: .6rem;
            width: 100%;
        }
        .phone-mock .mock-check .dot {
            width: 10px;
            height: 10px;
            background: #20C05A;
            border-radius: 50%;
        }
        .phone-mock .mock-check .lxx {
            height: 5px;
            width: 40px;
            background: rgba(255,255,255,.2);
            border-radius: 4px;
        }

        .black-soft-card {
            background: #10131F;
            border: 1px solid rgba(255,255,255,.08);
            border-radius: 14px;
            padding: 1.5rem;
            color: #fff;
        }
        .black-soft-card h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: .7rem;
            display: flex;
            align-items: center;
            gap: .6rem;
        }
        .note-chip {
            font-size: 13px;
            color: #99A1B0;
            background: rgba(255,255,255,.05);
            border-radius: 6px;
            padding: .2rem .6rem;
        }
        .divider-gradient {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary-base), var(--neon-line), transparent);
            border: 0;
            margin: 0;
        }
        .access-steps {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .access-steps li {
            padding: .8rem 0;
            border-bottom: 1px solid #EAECF2;
            display: flex;
            gap: .8rem;
            font-size: 14px;
            color: #4C5465;
        }
        .access-steps li:last-child {
            border-bottom: 0;
        }
        .access-steps .step-tag {
            background: rgba(108,77,246,.1);
            color: var(--primary-base);
            font-weight: 700;
            font-size: 12px;
            padding: .1rem .5rem;
            border-radius: 6px;
            white-space: nowrap;
            align-self: flex-start;
        }

/* roulang page: category4 */
:root{
  --bg-base:#0C0F18;
  --bg-nav:#0B0D15;
  --bg-section:#F3F5F9;
  --bg-card:#FFFFFF;
  --primary-light:#9D8CFF;
  --primary-base:#6C4DF6;
  --primary-deep:#4120D9;
  --neon-line:#00E5FF;
  --accent-bright:#F5B744;
  --danger-flag:#E34F4F;
  --text-header:#F0F2F8;
  --text-body:#232734;
  --text-sub:#626A7C;
  --border-line:#E0E3EB;
  --radius-lg:16px;
  --radius-md:8px;
  --shadow-card:0 1px 3px rgba(15,20,40,.06),0 8px 24px rgba(15,20,40,.05);
  --shadow-primary:0 8px 30px rgba(108,77,246,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg-section);
  color:var(--text-body);
  line-height:1.7;
  font-size:16px;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
ul,ol,li,h1,h2,h3,h4,p,figure{margin:0;padding:0}
.container-site{width:min(1240px,92%);margin-inline:auto}
.section-block{padding:72px 0}
.section-head{margin-bottom:42px;max-width:780px}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--primary-base);
  margin-bottom:10px;
}
.section-eyebrow::before{
  content:"";width:26px;height:2px;background:var(--neon-line);border-radius:2px;
}
.section-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;letter-spacing:-.02em;color:#1E2330;font-weight:750}
.section-head p{color:var(--text-sub);margin-top:12px;font-size:15px}
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,21,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.site-header::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--neon-line),var(--primary-base) 38%,transparent 72%);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.logo-area{display:flex;align-items:center;gap:12px;min-width:0}
.logo-mark{
  width:40px;height:40px;border-radius:10px;flex:0 0 auto;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary-deep),var(--primary-base));
  border:1px solid rgba(0,229,255,.55);
  color:#fff;font-weight:800;font-size:19px;
  box-shadow:0 0 14px rgba(0,229,255,.18);
}
.logo-text{display:flex;flex-direction:column;line-height:1.25;color:var(--text-header);white-space:nowrap;font-size:16px;font-weight:750;letter-spacing:.02em}
.logo-text small{font-size:10px;font-weight:500;color:#7E8697;letter-spacing:.14em;line-height:1.5}
.nav-menu{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}
.nav-menu li{list-style:none}
.nav-menu a{
  display:block;padding:25px 12px 23px;color:rgba(235,238,246,.72);
  font-size:14px;font-weight:500;letter-spacing:.05em;
  border-bottom:2px solid transparent;
  transition:color .22s ease,border-color .22s ease,text-shadow .22s ease;
}
.nav-menu a:hover{color:#fff;text-shadow:0 0 10px rgba(157,140,255,.8)}
.nav-menu a.active{color:#fff;border-bottom-color:var(--neon-line);text-shadow:0 0 10px rgba(0,229,255,.45)}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-base);color:#fff;font-weight:650;font-size:14px;
  padding:9px 18px;border-radius:8px;white-space:nowrap;
  border:1px solid transparent;
  box-shadow:0 4px 14px rgba(108,77,246,.22);
  transition:background .2s ease,border-color .25s ease,box-shadow .25s ease;
}
.header-cta:hover{border-color:var(--neon-line);background:var(--primary-deep);box-shadow:0 0 0 1px rgba(0,229,255,.32),0 0 14px rgba(0,229,255,.18)}
.burger-menu{display:none;width:42px;height:42px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.04);border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}
.burger-menu span{width:18px;height:2px;background:#E6E9F2;border-radius:2px;transition:transform .3s ease,opacity .3s ease}
.mobile-nav{
  display:none;
}
.category-hero{
  position:relative;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  padding:94px 0 72px;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.category-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(8,10,18,.96) 10%,rgba(15,17,30,.88) 48%,rgba(12,15,24,.75) 100%);
}
.hero-cat-inner{position:relative;z-index:2;color:#F0F2F8}
.crumbline{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(240,242,248,.62);margin-bottom:16px}
.crumbline a{color:rgba(240,242,248,.62);transition:color .2s}
.crumbline a:hover{color:#fff}
.crumb-arrow{color:rgba(0,229,255,.7)}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;font-weight:600;letter-spacing:.1em;color:#A6F0FF;margin-bottom:12px;
}
.hero-eyebrow::before{content:"";width:24px;height:2px;background:var(--neon-line);border-radius:2px}
.hero-cat-inner h1{
  font-size:clamp(29px,4.4vw,42px);line-height:1.22;font-weight:800;
  letter-spacing:-.03em;max-width:760px;margin-bottom:18px;
}
.hero-desc{font-size:16px;line-height:1.8;max-width:620px;color:rgba(235,238,246,.82)}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 20px;border-radius:8px;
  font-weight:650;font-size:14px;letter-spacing:.02em;
  border:1px solid transparent;transition:all .22s ease;
}
.btn-primary{background:var(--primary-base);color:#fff;box-shadow:0 6px 16px rgba(108,77,246,.24)}
.btn-primary:hover{background:var(--primary-deep);box-shadow:0 0 0 1px rgba(0,229,255,.4),0 0 16px rgba(0,229,255,.16)}
.btn-ghost{
  background:rgba(255,255,255,.06);color:#F0F2F8;border:1px solid rgba(255,255,255,.2);
}
.btn-ghost:hover{border-color:var(--neon-line);color:#fff;background:rgba(0,229,255,.08)}
.hero-trustline{display:flex;flex-wrap:wrap;gap:20px;margin-top:38px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12)}
.trust-point{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(240,242,248,.75)}
.trust-icon{width:7px;height:7px;border-radius:99px;background:var(--accent-bright);box-shadow:0 0 0 4px rgba(245,183,68,.14)}
.category-tabs{
  background:rgba(9,12,20,.96);
  border-bottom:1px solid rgba(255,255,255,.08);
  position:relative;z-index:5;
}
.tabs-inner{
  display:flex;align-items:center;gap:4px;overflow-x:auto;
  scrollbar-width:none;
}
.tabs-inner::-webkit-scrollbar{display:none}
.tabs-inner>span{
  flex:0 0 auto;font-size:12px;font-weight:600;letter-spacing:.14em;
  color:#69758B;margin-right:14px;
}
.tabs-inner a{
  flex:0 0 auto;padding:13px 16px;font-size:14px;color:rgba(235,238,246,.78);
  border-bottom:2px solid transparent;transition:all .2s;
}
.tabs-inner a:hover{color:#fff;text-shadow:0 0 8px rgba(0,229,255,.4)}
.tabs-inner a:focus-visible{outline:2px solid var(--neon-line);outline-offset:-2px;border-radius:6px}
.tabs-inner a.active{color:#fff;border-bottom-color:var(--neon-line)}
.section-entry{background:#FFFFFF;border-bottom:1px solid #E6E9F1}
.split-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap}
.head-note{max-width:360px;font-size:14px;color:var(--text-sub);line-height:1.7;padding-bottom:6px}
.entry-card-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;
}
.entry-card{
  background:#fff;border:1px solid #E3E6EE;border-radius:16px;overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(25,35,70,.1);border-color:#C9D0E0}
.entry-card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDF0F6}
.entry-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.entry-card:hover .entry-card-media img{transform:scale(1.03)}
.card-tag{
  position:absolute;left:14px;bottom:12px;background:rgba(12,15,24,.82);
  color:#fff;backdrop-filter:blur(6px);border:1px solid rgba(255,255,255,.16);
  font-size:12px;padding:3px 10px;border-radius:99px;
}
.entry-card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.entry-card-body h3{font-size:19px;font-weight:700;color:#1E2330;letter-spacing:-.01em}
.entry-card-body p{font-size:14px;color:var(--text-sub);line-height:1.75}
.meta-line{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:10px;font-size:13px;color:#9199AC}
.meta-badge{
  display:inline-flex;align-items:center;background:#F1F1FE;color:var(--primary-deep);
  padding:4px 10px;border-radius:999px;font-weight:550;
}
.card-arrow{font-size:17px;color:var(--primary-base);transition:transform .2s}
.entry-card:hover .card-arrow{transform:translateX(4px)}
@media(max-width:767px){
  .entry-card-grid{grid-template-columns:1fr}
}
.section-partner{
  position:relative;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat,#0E111B;
}
.section-partner::before{
  content:"";position:absolute;inset:0;background:linear-gradient(rgba(11,13,21,.95),rgba(12,15,24,.9));
}
.section-partner .container-site{position:relative;z-index:2}
.light-head h2{color:#fff}
.light-head p{color:rgba(235,238,246,.72)}
.light-head .section-eyebrow{color:#86F0FF}
.partner-panel{
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:44px;align-items:center;
  border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.04);
  border-radius:18px;padding:38px;
  backdrop-filter:blur(8px);
}
.partner-copy h3{color:#fff;font-size:24px;font-weight:700;margin-bottom:12px}
.partner-copy>p{color:rgba(240,242,248,.76);font-size:15px;line-height:1.8}
.feature-list{list-style:none;margin-top:22px;display:flex;flex-direction:column;gap:14px}
.feature-list li{display:flex;align-items:flex-start;gap:10px;color:rgba(240,242,248,.88);font-size:14px}
.feature-list .check{
  flex:0 0 auto;width:20px;height:20px;border-radius:99px;display:grid;place-items:center;
  background:rgba(0,229,255,.14);border:1px solid rgba(0,229,255,.4);
  color:#0FD8F5;font-size:11px;font-weight:800;margin-top:2px;
}
.partner-proof{
  border-left:1px solid rgba(255,255,255,.14);padding-left:32px;
  display:flex;flex-direction:column;gap:20px;
}
.proof-item{display:flex;gap:14px}
.proof-num{
  flex:0 0 auto;width:32px;height:32px;border-radius:9px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary-deep),var(--primary-base));
  color:#fff;font-weight:700;font-size:14px;
  box-shadow:0 0 0 4px rgba(108,77,246,.14);
}
.proof-item h4{color:#fff;font-size:15px;font-weight:650;margin-bottom:4px}
.proof-item p{color:rgba(235,238,246,.68);font-size:13px;line-height:1.7}
@media(max-width:900px){
  .partner-panel{grid-template-columns:1fr;padding:28px}
  .partner-proof{border-left:0;border-top:1px solid rgba(255,255,255,.14);padding-left:0;padding-top:24px}
}
.section-flow{background:linear-gradient(180deg,#FFFFFF,#F4F6FA);border-top:1px solid #E6E9F1}
.inspect-list{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;list-style:none;
}
@media(max-width:1023px){.inspect-list{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.inspect-list{grid-template-columns:1fr}}
.inspect-item{
  background:#fff;border:1px solid #E1E5EE;border-top:3px solid var(--neon-line);
  border-radius:14px;padding:22px;box-shadow:0 2px 10px rgba(20,25,50,.04);
  transition:transform .2s ease,box-shadow .2s ease;
}
.inspect-item:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(35,45,80,.1)}
.inspect-num{font-size:28px;font-weight:800;color:#DDE2EC;letter-spacing:-.04em;line-height:1}
.inspect-item h3{font-size:17px;font-weight:700;color:#222838;margin:14px 0 8px}
.inspect-item p{font-size:14px;color:var(--text-sub);line-height:1.7}
.section-alert{background:#F3F5F9;padding:40px 0}
.alert-card{
  display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;
  border-radius:16px;padding:24px 28px;
  background:#fff8EA;border:1px solid rgba(245,183,68,.5);
}
.alert-icon{
  width:42px;height:42px;border-radius:12px;background:#F5B744;color:#1A1C2A;
  display:grid;place-items:center;font-weight:850;font-size:21px;
}
.alert-card h2{font-size:18px;font-weight:750;color:#3A3422;margin-bottom:6px}
.alert-card p{font-size:14px;line-height:1.8;color:#5B543F}
@media(max-width:600px){.alert-card{grid-template-columns:1fr}.alert-icon{width:36px;height:36px}}
.section-cta{
  background:linear-gradient(145deg,#17192A,#0E1120 60%,#0A0D15);
  padding:80px 0 66px;
  border-top:1px solid rgba(255,255,255,.06);
}
.cta-card{
  display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);
  box-shadow:0 0 0 1px rgba(255,255,255,.02),0 18px 50px rgba(0,0,0,.2);
  border-radius:20px;padding:42px;
}
.cta-copy .section-eyebrow{color:#86F0FF}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;letter-spacing:-.02em;margin-bottom:12px}
.cta-copy p{color:rgba(235,238,246,.7);font-size:14px;line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.section-cta .btn-primary{background:var(--primary-base)}
.section-cta .btn-primary:hover{background:var(--primary-deep);box-shadow:0 0 0 1px rgba(0,229,255,.4),0 0 16px rgba(0,229,255,.16)}
.btn-outline-light{
  background:transparent;border:1px solid rgba(255,255,255,.22);color:rgba(240,242,248,.82);
}
.btn-outline-light:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.06)}
.cta-note{margin-top:16px;display:flex;align-items:center;gap:6px;font-size:12px;color:rgba(235,238,246,.48)}
.cta-lock{font-size:13px}
@media(max-width:900px){.cta-card{grid-template-columns:1fr;padding:30px}}
.faq-section{background:#F3F5F9;padding:76px 0}
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:#fff;border-bottom:1px solid #E2E5EE;margin-bottom:14px;
  border-radius:14px;overflow:hidden;
  box-shadow:0 1px 4px rgba(20,25,50,.03);
}
.faq-item:first-of-type{border-top:1px solid #E2E5EE}
.faq-toggle{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  padding:22px 24px;font-size:16px;font-weight:600;color:#202634;line-height:1.5;
}
.faq-toggle:hover{color:var(--primary-deep)}
.faq-sign{
  flex:0 0 auto;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  background:#F0EFFF;color:var(--primary-base);font-size:20px;font-weight:400;
  transition:transform .3s ease,background .3s ease,color .3s ease;
}
.faq-item.active .faq-sign{transform:rotate(45deg);background:var(--primary-base);color:#fff}
.faq-answer{display:none;padding:0 24px 24px}
.faq-item.active .faq-answer{display:block}
.faq-answer p{
  font-size:14px;line-height:1.85;color:var(--text-sub);
  background:#F8F9FC;border-left:2px solid var(--neon-line);
  border-radius:0 10px 10px 0;padding:14px 18px;
}
.footer{
  background:#090B12;color:#8D95A5;
  padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.05);
}
.footer-grid{
  display:grid;grid-template-columns:1.15fr .85fr .85fr 1.15fr;gap:40px;
}
@media(max-width:1000px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.footer-grid{grid-template-columns:1fr}}
.footer-brand-logo{font-size:18px;font-weight:800;color:#fff;letter-spacing:.02em;margin-bottom:12px}
.footer-brand-logo span{color:#7D8BFF}
.footer-about-text{font-size:13px;line-height:1.9;color:#788196;max-width:300px}
.footer-col-title{
  font-size:15px;color:#F0F2F8;font-weight:650;margin-bottom:16px;letter-spacing:.04em;
}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:#7C8598;transition:color .2s,transform .2s;display:inline-flex;align-items:center}
.footer-links a:hover{color:#B5C0FF;transform:translateX(3px)}
.footer-links a::before{content:"";width:5px;height:5px;border-radius:50%;background:#34405A;margin-right:10px;transition:background .2s}
.footer-links a:hover::before{background:var(--neon-line)}
.footer-note-text{font-size:13px;line-height:1.9;color:#788196}
.footer-bottom{
  margin-top:42px;border-top:1px solid rgba(255,255,255,.08);
  padding-top:22px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:12px;color:#667085;
}
@media(max-width:1023px){
  .nav-menu,.header-cta{display:none}
  .burger-menu{display:flex}
  .mobile-nav.open{
    position:absolute;top:72px;left:0;right:0;
    display:flex;flex-direction:column;gap:4px;
    background:rgba(9,11,20,.98);backdrop-filter:blur(14px);
    padding:14px 6% 22px;border-bottom:1px solid rgba(255,255,255,.08);
    z-index:70;
  }
  .mobile-nav a{
    display:block;padding:13px 10px;color:rgba(235,238,246,.8);
    font-size:15px;border-radius:9px;transition:background .2s,color .2s;
  }
  .mobile-nav a:hover,.mobile-nav a.active{color:#fff;background:rgba(255,255,255,.07)}
  .mobile-nav .mobile-cta{
    text-align:center;background:var(--primary-base);color:#fff;margin-top:10px;border-radius:10px;
  }
  .mobile-nav .mobile-cta:hover{background:var(--primary-deep)}
}
a:focus-visible,button:focus-visible{
  outline:2px solid var(--neon-line);outline-offset:3px;border-radius:6px;
}
@media(max-width:767px){
  .section-block{padding:56px 0}
  .category-hero{padding:72px 0 56px}
  .hero-ctas .btn{width:100%}
  .entry-card-body{padding:20px}
  .cta-card{padding:24px 20px}
  .alert-card{padding:20px}
}