/* roulang page: index */
/* ===== Design Variables ===== */
    :root {
        --primary: #0B1A2E;
        --primary-dark: #060D1A;
        --accent: #2DD4C8;
        --accent-hover: #3EE7DB;
        --accent-glow: rgba(45, 212, 200, 0.35);
        --gold: #F5A623;
        --bg-deep: #0A111F;
        --text-white: #FFFFFF;
        --text-muted: #B0C4DE;
        --text-dim: #4A5568;
        --glass-bg: rgba(255, 255, 255, 0.04);
        --glass-border: rgba(45, 212, 200, 0.12);
        --glass-border-hover: rgba(45, 212, 200, 0.25);
        --radius: 12px;
        --radius-sm: 10px;
        --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
        --shadow-glow: 0 0 24px rgba(45, 212, 200, 0.3);
        --shadow-glow-hover: 0 0 40px rgba(45, 212, 200, 0.5);
        --font-sans: 'Noto Sans SC', sans-serif;
        --container-max: 1280px;
        --nav-width: 72px;
        --nav-width-expand: 240px;
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* ===== Reset & Base ===== */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    html {
        scroll-behavior: smooth;
    }
    body {
        font-family: var(--font-sans);
        background: var(--bg-deep);
        color: var(--text-white);
        line-height: 1.6;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        overflow-x: hidden;
    }
    a {
        color: var(--accent);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--accent-hover);
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    button,
    input,
    textarea {
        font-family: inherit;
        transition: var(--transition);
    }
    ul,
    ol {
        list-style: none;
    }
    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        font-weight: 700;
        line-height: 1.25;
        color: var(--text-white);
    }

    /* ===== Container ===== */
    .container {
        max-width: var(--container-max);
        padding-left: 24px;
        padding-right: 24px;
        margin-left: auto;
        margin-right: auto;
    }
    @media (max-width: 576px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }
    }

    /* ===== App Shell Layout ===== */
    .app-shell {
        display: flex;
        min-height: 100vh;
    }
    .nav-appshell {
        position: fixed;
        top: 0;
        left: 0;
        width: var(--nav-width);
        height: 100vh;
        background: rgba(11, 26, 46, 0.92);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-right: 1px solid rgba(45, 212, 200, 0.12);
        z-index: 1040;
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 0 8px;
        transition: width 0.3s ease;
        overflow: hidden;
    }
    .nav-appshell:hover {
        width: var(--nav-width-expand);
    }
    .nav-appshell .nav-logo {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 28px 0 24px;
        width: 100%;
        flex-shrink: 0;
    }
    .nav-appshell .nav-logo a {
        display: flex;
        align-items: center;
        gap: 8px;
        color: var(--text-white);
        font-weight: 700;
        font-size: 18px;
        white-space: nowrap;
        text-decoration: none;
    }
    .nav-appshell .nav-logo a .logo-icon {
        width: 36px;
        height: 36px;
        background: linear-gradient(135deg, var(--accent), var(--gold));
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        color: var(--primary);
        flex-shrink: 0;
    }
    .nav-appshell .nav-logo a .logo-text {
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    .nav-appshell:hover .nav-logo a .logo-text {
        opacity: 1;
    }
    .nav-appshell .nav-logo a .logo-sub {
        display: none;
        font-size: 11px;
        color: var(--text-muted);
        font-weight: 400;
        letter-spacing: 0.5px;
    }
    .nav-appshell:hover .nav-logo a .logo-sub {
        display: inline;
    }

    .nav-appshell .nav-items {
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 4px;
        width: 100%;
        padding: 8px 0;
        overflow-y: auto;
    }
    .nav-appshell .nav-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 16px;
        border-radius: var(--radius);
        color: var(--text-muted);
        font-size: 15px;
        font-weight: 500;
        text-decoration: none;
        white-space: nowrap;
        transition: var(--transition);
        position: relative;
        min-height: 48px;
    }
    .nav-appshell .nav-item i {
        width: 24px;
        text-align: center;
        font-size: 18px;
        flex-shrink: 0;
    }
    .nav-appshell .nav-item .nav-label {
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    .nav-appshell:hover .nav-item .nav-label {
        opacity: 1;
    }
    .nav-appshell .nav-item:hover {
        background: rgba(45, 212, 200, 0.08);
        color: var(--text-white);
    }
    .nav-appshell .nav-item.active {
        color: var(--accent);
        background: rgba(45, 212, 200, 0.06);
        box-shadow: inset 3px 0 0 var(--accent);
    }
    .nav-appshell .nav-item.active .nav-label {
        color: var(--accent);
    }
    .nav-appshell .nav-footer {
        padding: 16px 0;
        width: 100%;
        display: flex;
        justify-content: center;
        flex-shrink: 0;
        border-top: 1px solid rgba(45, 212, 200, 0.06);
    }
    .nav-appshell .nav-footer .social-icons {
        display: flex;
        gap: 12px;
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    .nav-appshell:hover .nav-footer .social-icons {
        opacity: 1;
    }
    .nav-appshell .nav-footer .social-icons a {
        color: var(--text-dim);
        font-size: 16px;
        transition: var(--transition);
    }
    .nav-appshell .nav-footer .social-icons a:hover {
        color: var(--accent);
    }

    /* Main content area */
    .main-content {
        margin-left: var(--nav-width);
        flex: 1;
        min-height: 100vh;
        width: calc(100% - var(--nav-width));
        transition: margin-left 0.3s ease;
    }
    @media (max-width: 991.98px) {
        .nav-appshell {
            width: 0;
            border-right: none;
            overflow: hidden;
        }
        .nav-appshell:hover {
            width: 0;
        }
        .main-content {
            margin-left: 0;
            width: 100%;
        }
        /* Mobile top bar */
        .mobile-topbar {
            display: flex !important;
        }
    }
    @media (min-width: 992px) {
        .mobile-topbar {
            display: none !important;
        }
    }

    /* Mobile Topbar */
    .mobile-topbar {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: 56px;
        background: rgba(11, 26, 46, 0.96);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid rgba(45, 212, 200, 0.1);
        z-index: 1035;
        display: none;
        align-items: center;
        justify-content: space-between;
        padding: 0 16px;
    }
    .mobile-topbar .mobile-logo {
        display: flex;
        align-items: center;
        gap: 8px;
        color: var(--text-white);
        font-weight: 700;
        font-size: 17px;
        text-decoration: none;
    }
    .mobile-topbar .mobile-logo .logo-icon {
        width: 32px;
        height: 32px;
        background: linear-gradient(135deg, var(--accent), var(--gold));
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        color: var(--primary);
    }
    .mobile-topbar .hamburger {
        background: none;
        border: none;
        color: var(--text-white);
        font-size: 24px;
        padding: 8px;
        cursor: pointer;
    }
    /* Mobile Drawer */
    .mobile-drawer-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.7);
        z-index: 1045;
        display: none;
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    .mobile-drawer-overlay.open {
        display: block;
        opacity: 1;
    }
    .mobile-drawer {
        position: fixed;
        top: 0;
        left: -300px;
        width: 280px;
        height: 100vh;
        background: var(--primary);
        border-right: 1px solid rgba(45, 212, 200, 0.1);
        z-index: 1050;
        transition: left 0.3s ease;
        padding: 24px 16px;
        display: flex;
        flex-direction: column;
        box-shadow: 4px 0 40px rgba(0, 0, 0, 0.5);
    }
    .mobile-drawer.open {
        left: 0;
    }
    .mobile-drawer .drawer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 20px;
        font-weight: 700;
        color: var(--text-white);
        padding-bottom: 24px;
        border-bottom: 1px solid rgba(45, 212, 200, 0.08);
        margin-bottom: 16px;
    }
    .mobile-drawer .drawer-logo .logo-icon {
        width: 36px;
        height: 36px;
        background: linear-gradient(135deg, var(--accent), var(--gold));
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        color: var(--primary);
    }
    .mobile-drawer .drawer-nav {
        flex: 1;
    }
    .mobile-drawer .drawer-nav a {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 14px 12px;
        font-size: 17px;
        color: var(--text-muted);
        text-decoration: none;
        border-radius: var(--radius);
        transition: var(--transition);
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .mobile-drawer .drawer-nav a i {
        width: 24px;
        text-align: center;
        font-size: 18px;
    }
    .mobile-drawer .drawer-nav a:hover {
        background: rgba(45, 212, 200, 0.08);
        color: var(--text-white);
    }
    .mobile-drawer .drawer-nav a.active {
        color: var(--accent);
        background: rgba(45, 212, 200, 0.06);
        border-left: 3px solid var(--accent);
    }
    .mobile-drawer .drawer-footer {
        padding-top: 16px;
        border-top: 1px solid rgba(45, 212, 200, 0.06);
        font-size: 13px;
        color: var(--text-dim);
        text-align: center;
    }

    /* ===== Section Spacing ===== */
    .section-padding {
        padding-top: 80px;
        padding-bottom: 80px;
    }
    @media (max-width: 768px) {
        .section-padding {
            padding-top: 48px;
            padding-bottom: 48px;
        }
    }

    /* ===== Glass Card ===== */
    .glass-card {
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.08));
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border: 1px solid var(--glass-border);
        border-radius: var(--radius);
        padding: 32px;
        transition: var(--transition);
        box-shadow: var(--shadow-card);
    }
    .glass-card:hover {
        border-color: var(--glass-border-hover);
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
        transform: translateY(-2px);
    }

    /* ===== Buttons ===== */
    .btn-custom {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 28px;
        border-radius: var(--radius);
        font-size: 16px;
        font-weight: 600;
        border: none;
        cursor: pointer;
        transition: var(--transition);
        text-decoration: none;
        line-height: 1.4;
    }
    .btn-custom.btn-accent {
        background: var(--accent);
        color: var(--primary);
        box-shadow: var(--shadow-glow);
    }
    .btn-custom.btn-accent:hover {
        background: var(--accent-hover);
        box-shadow: var(--shadow-glow-hover);
        color: var(--primary);
        transform: translateY(-1px);
    }
    .btn-custom.btn-accent:active {
        transform: scale(0.97);
    }
    .btn-custom.btn-outline {
        background: transparent;
        border: 2px solid rgba(45, 212, 200, 0.6);
        color: var(--text-white);
    }
    .btn-custom.btn-outline:hover {
        background: rgba(45, 212, 200, 0.1);
        border-color: var(--accent);
        color: var(--text-white);
        transform: translateY(-1px);
    }
    .btn-custom.btn-outline:active {
        transform: scale(0.97);
    }
    .btn-custom.btn-sm {
        padding: 8px 20px;
        font-size: 14px;
    }

    /* ===== Badge / Tag ===== */
    .badge-custom {
        display: inline-block;
        background: rgba(45, 212, 200, 0.15);
        color: var(--accent);
        font-size: 12px;
        font-weight: 600;
        padding: 4px 12px;
        border-radius: 20px;
        letter-spacing: 0.5px;
    }
    .badge-custom.badge-gold {
        background: rgba(245, 166, 35, 0.15);
        color: var(--gold);
    }
    .badge-custon-sm {
        font-size: 11px;
        padding: 2px 10px;
    }

    /* ===== Section Title ===== */
    .section-title {
        font-size: 32px;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 16px;
        position: relative;
    }
    .section-title .accent-line {
        display: inline-block;
        width: 48px;
        height: 3px;
        background: var(--accent);
        border-radius: 2px;
        margin-bottom: 8px;
        margin-right: 12px;
    }
    .section-subtitle {
        font-size: 18px;
        color: var(--text-muted);
        max-width: 640px;
        line-height: 1.6;
    }
    @media (max-width: 768px) {
        .section-title {
            font-size: 26px;
        }
        .section-subtitle {
            font-size: 16px;
        }
    }

    /* ===== Hero ===== */
    .hero-section {
        position: relative;
        min-height: 100vh;
        display: flex;
        align-items: center;
        background: radial-gradient(ellipse at 30% 50%, rgba(45, 212, 200, 0.08) 0%, rgba(245, 166, 35, 0.04) 40%, var(--primary) 70%, var(--bg-deep) 100%);
        overflow: hidden;
    }
    .hero-section::before {
        content: '';
        position: absolute;
        top: -20%;
        left: -10%;
        width: 60%;
        height: 80%;
        background: radial-gradient(circle, rgba(45, 212, 200, 0.12) 0%, transparent 70%);
        pointer-events: none;
    }
    .hero-section::after {
        content: '';
        position: absolute;
        bottom: -10%;
        right: -5%;
        width: 40%;
        height: 50%;
        background: radial-gradient(circle, rgba(245, 166, 35, 0.06) 0%, transparent 70%);
        pointer-events: none;
    }
    .hero-section .container {
        position: relative;
        z-index: 2;
        padding-top: 80px;
        padding-bottom: 80px;
    }
    .hero-section .hero-title {
        font-size: 64px;
        font-weight: 700;
        line-height: 1.15;
        color: var(--text-white);
        margin-bottom: 24px;
        max-width: 860px;
    }
    .hero-section .hero-title .highlight {
        background: linear-gradient(135deg, var(--accent), var(--gold));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .hero-section .hero-subtitle {
        font-size: 22px;
        color: rgba(255, 255, 255, 0.7);
        line-height: 1.6;
        max-width: 620px;
        margin-bottom: 36px;
        font-weight: 400;
    }
    .hero-section .hero-actions {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
    }
    .hero-scroll-hint {
        position: absolute;
        bottom: 32px;
        left: 50%;
        transform: translateX(-50%);
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 6px;
        color: rgba(255, 255, 255, 0.3);
        font-size: 12px;
        letter-spacing: 1px;
        animation: scrollHint 2s infinite;
    }
    .hero-scroll-hint i {
        font-size: 18px;
    }
    @keyframes scrollHint {
        0%,
        100% {
            transform: translateX(-50%) translateY(0);
            opacity: 0.4;
        }
        50% {
            transform: translateX(-50%) translateY(6px);
            opacity: 1;
        }
    }
    @media (max-width: 768px) {
        .hero-section .hero-title {
            font-size: 40px;
        }
        .hero-section .hero-subtitle {
            font-size: 18px;
        }
        .hero-section .hero-actions {
            flex-direction: column;
            align-items: stretch;
        }
        .hero-section .hero-actions .btn-custom {
            text-align: center;
        }
    }
    @media (max-width: 576px) {
        .hero-section .hero-title {
            font-size: 32px;
        }
    }

    /* ===== Features ===== */
    .features-section .feature-card {
        position: relative;
        height: 100%;
    }
    .features-section .feature-card .feature-icon {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        margin-bottom: 16px;
        flex-shrink: 0;
    }
    .features-section .feature-card .feature-icon.icon-accent {
        background: linear-gradient(135deg, var(--accent), #3EE7DB);
        color: var(--primary);
    }
    .features-section .feature-card .feature-icon.icon-gold {
        background: linear-gradient(135deg, var(--gold), #f7b84d);
        color: var(--primary);
    }
    .features-section .feature-card .feature-title {
        font-size: 20px;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 12px;
    }
    .features-section .feature-card .feature-desc {
        font-size: 16px;
        color: var(--text-muted);
        line-height: 1.6;
    }
    .features-section .feature-card .accent-bar {
        position: absolute;
        left: 0;
        top: 32px;
        width: 3px;
        height: 40px;
        background: var(--accent);
        border-radius: 2px;
    }
    .features-section .feature-card .top-glow {
        position: absolute;
        top: -1px;
        left: 20%;
        right: 20%;
        height: 2px;
        background: linear-gradient(90deg, transparent, var(--accent), transparent);
        border-radius: 2px;
        opacity: 0.6;
    }

    /* ===== News / CMS List ===== */
    .news-section .news-item {
        display: flex;
        gap: 20px;
        padding: 20px 24px;
        background: rgba(255, 255, 255, 0.03);
        border-radius: var(--radius);
        border: 1px solid rgba(45, 212, 200, 0.06);
        transition: var(--transition);
        margin-bottom: 16px;
    }
    .news-section .news-item:hover {
        background: rgba(255, 255, 255, 0.06);
        border-color: rgba(45, 212, 200, 0.15);
    }
    .news-section .news-item .news-thumb {
        width: 120px;
        min-width: 120px;
        height: 80px;
        border-radius: 8px;
        overflow: hidden;
        background: var(--primary);
    }
    .news-section .news-item .news-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    .news-section .news-item .news-info {
        flex: 1;
        min-width: 0;
    }
    .news-section .news-item .news-info .news-cat {
        display: inline-block;
        background: rgba(45, 212, 200, 0.15);
        color: var(--accent);
        font-size: 12px;
        font-weight: 600;
        padding: 2px 10px;
        border-radius: 12px;
        margin-bottom: 6px;
    }
    .news-section .news-item .news-info .news-title {
        font-size: 18px;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 6px;
        line-height: 1.4;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .news-section .news-item .news-info .news-title a {
        color: var(--text-white);
    }
    .news-section .news-item .news-info .news-title a:hover {
        color: var(--accent);
    }
    .news-section .news-item .news-info .news-excerpt {
        font-size: 14px;
        color: var(--text-muted);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        margin-bottom: 4px;
    }
    .news-section .news-item .news-info .news-meta {
        font-size: 13px;
        color: var(--text-dim);
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .news-section .news-item .news-info .news-meta .read-more {
        color: var(--accent);
        font-weight: 500;
        font-size: 13px;
    }
    .news-section .news-empty {
        text-align: center;
        padding: 48px 24px;
        color: var(--text-muted);
        font-size: 16px;
    }
    @media (max-width: 576px) {
        .news-section .news-item {
            flex-direction: column;
            padding: 16px;
        }
        .news-section .news-item .news-thumb {
            width: 100%;
            height: 140px;
        }
    }

    /* ===== Showcase ===== */
    .showcase-section .showcase-block {
        display: flex;
        align-items: center;
        gap: 48px;
        margin-bottom: 80px;
    }
    .showcase-section .showcase-block:last-child {
        margin-bottom: 0;
    }
    .showcase-section .showcase-block .showcase-text {
        flex: 1;
    }
    .showcase-section .showcase-block .showcase-text .showcase-label {
        font-size: 14px;
        color: var(--accent);
        text-transform: uppercase;
        letter-spacing: 2px;
        font-weight: 600;
        margin-bottom: 8px;
    }
    .showcase-section .showcase-block .showcase-text .showcase-title {
        font-size: 36px;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 16px;
        line-height: 1.2;
    }
    .showcase-section .showcase-block .showcase-text .showcase-desc {
        font-size: 18px;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 24px;
    }
    .showcase-section .showcase-block .showcase-media {
        flex: 1;
        border-radius: 16px;
        overflow: hidden;
        box-shadow: 0 0 40px rgba(45, 212, 200, 0.12);
        position: relative;
    }
    .showcase-section .showcase-block .showcase-media::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(45, 212, 200, 0.08), transparent 60%);
        pointer-events: none;
    }
    .showcase-section .showcase-block .showcase-media img {
        width: 100%;
        height: auto;
        display: block;
    }
    @media (max-width: 991.98px) {
        .showcase-section .showcase-block {
            flex-direction: column;
            gap: 32px;
        }
        .showcase-section .showcase-block .showcase-text .showcase-title {
            font-size: 28px;
        }
        .showcase-section .showcase-block .showcase-text .showcase-desc {
            font-size: 16px;
        }
    }

    /* ===== Proof / Stats ===== */
    .proof-section .stat-item {
        text-align: center;
        padding: 32px 16px;
    }
    .proof-section .stat-item .stat-number {
        font-size: 48px;
        font-weight: 700;
        background: linear-gradient(135deg, var(--accent), var(--gold));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        line-height: 1.1;
        margin-bottom: 8px;
    }
    .proof-section .stat-item .stat-label {
        font-size: 16px;
        color: var(--text-muted);
        font-weight: 400;
    }
    .proof-section .stat-item .stat-divider {
        width: 40px;
        height: 2px;
        background: var(--accent);
        margin: 12px auto 0;
        border-radius: 2px;
    }
    .proof-section .logo-wall {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        gap: 40px;
        padding: 32px 0;
        opacity: 0.6;
    }
    .proof-section .logo-wall .logo-item {
        font-size: 14px;
        color: var(--text-dim);
        font-weight: 500;
        letter-spacing: 1px;
        text-transform: uppercase;
        padding: 8px 16px;
        border: 1px solid rgba(255, 255, 255, 0.06);
        border-radius: 8px;
        transition: var(--transition);
    }
    .proof-section .logo-wall .logo-item:hover {
        border-color: var(--accent);
        color: var(--accent);
        opacity: 1;
    }
    .proof-section .testimonial {
        text-align: center;
        max-width: 720px;
        margin: 32px auto 0;
        padding: 32px 24px;
        background: rgba(255, 255, 255, 0.03);
        border-radius: var(--radius);
        border: 1px solid rgba(45, 212, 200, 0.06);
    }
    .proof-section .testimonial .quote {
        font-size: 20px;
        font-style: italic;
        color: var(--text-muted);
        line-height: 1.7;
        margin-bottom: 16px;
    }
    .proof-section .testimonial .quote::before {
        content: '\201C';
        font-size: 48px;
        color: var(--accent);
        opacity: 0.3;
        line-height: 0;
        vertical-align: -16px;
        margin-right: 4px;
    }
    .proof-section .testimonial .author {
        font-size: 16px;
        color: var(--text-white);
        font-weight: 600;
    }
    .proof-section .testimonial .author span {
        color: var(--text-dim);
        font-weight: 400;
    }
    @media (max-width: 768px) {
        .proof-section .stat-item .stat-number {
            font-size: 36px;
        }
        .proof-section .logo-wall {
            gap: 20px;
        }
    }

    /* ===== Pricing ===== */
    .pricing-section .pricing-card {
        height: 100%;
        display: flex;
        flex-direction: column;
        position: relative;
    }
    .pricing-section .pricing-card.featured {
        transform: scale(1.02);
        border-color: rgba(45, 212, 200, 0.3);
        box-shadow: 0 0 40px rgba(45, 212, 200, 0.1);
    }
    .pricing-section .pricing-card .pricing-badge {
        position: absolute;
        top: -12px;
        left: 50%;
        transform: translateX(-50%);
        background: var(--accent);
        color: var(--primary);
        font-size: 12px;
        font-weight: 700;
        padding: 4px 16px;
        border-radius: 20px;
        white-space: nowrap;
    }
    .pricing-section .pricing-card .pricing-name {
        font-size: 22px;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 8px;
    }
    .pricing-section .pricing-card .pricing-price {
        font-size: 36px;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 4px;
    }
    .pricing-section .pricing-card .pricing-price .price-unit {
        font-size: 16px;
        font-weight: 400;
        color: var(--text-dim);
    }
    .pricing-section .pricing-card .pricing-desc {
        color: var(--text-muted);
        font-size: 14px;
        margin-bottom: 20px;
    }
    .pricing-section .pricing-card .pricing-features {
        flex: 1;
        margin-bottom: 24px;
    }
    .pricing-section .pricing-card .pricing-features li {
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 8px 0;
        font-size: 14px;
        color: var(--text-muted);
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .pricing-section .pricing-card .pricing-features li i {
        color: var(--accent);
        font-size: 14px;
        width: 18px;
    }
    .pricing-section .pricing-card .pricing-action {
        margin-top: auto;
    }
    @media (max-width: 991.98px) {
        .pricing-section .pricing-card.featured {
            transform: scale(1);
        }
    }

    /* ===== FAQ Accordion ===== */
    .faq-section .accordion-item {
        background: transparent;
        border: none;
        border-bottom: 1px solid rgba(45, 212, 200, 0.08);
        border-radius: 0;
    }
    .faq-section .accordion-button {
        background: transparent;
        color: var(--text-white);
        font-size: 18px;
        font-weight: 500;
        padding: 20px 16px 20px 0;
        box-shadow: none;
        border: none;
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .faq-section .accordion-button::after {
        display: none;
    }
    .faq-section .accordion-button .faq-icon {
        width: 24px;
        text-align: center;
        color: var(--accent);
        font-size: 18px;
        transition: transform 0.3s ease;
    }
    .faq-section .accordion-button:not(.collapsed) .faq-icon {
        transform: rotate(45deg);
        color: var(--gold);
    }
    .faq-section .accordion-button:hover {
        background: rgba(45, 212, 200, 0.03);
    }
    .faq-section .accordion-button:focus {
        box-shadow: none;
    }
    .faq-section .accordion-body {
        padding: 0 16px 24px 36px;
        font-size: 16px;
        color: var(--text-muted);
        line-height: 1.7;
    }
    .faq-section .accordion-body a {
        color: var(--accent);
        font-weight: 500;
    }

    /* ===== CTA Section ===== */
    .cta-section {
        background: radial-gradient(ellipse at center, rgba(45, 212, 200, 0.06) 0%, transparent 70%);
        border-top: 1px solid rgba(45, 212, 200, 0.06);
        border-bottom: 1px solid rgba(45, 212, 200, 0.06);
    }
    .cta-section .cta-title {
        font-size: 36px;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 12px;
    }
    .cta-section .cta-desc {
        font-size: 18px;
        color: var(--text-muted);
        max-width: 600px;
        margin: 0 auto 28px;
    }
    .cta-section .cta-actions {
        display: flex;
        gap: 16px;
        justify-content: center;
        flex-wrap: wrap;
    }
    @media (max-width: 768px) {
        .cta-section .cta-title {
            font-size: 28px;
        }
        .cta-section .cta-desc {
            font-size: 16px;
        }
    }

    /* ===== Footer ===== */
    .footer {
        background: var(--primary-dark);
        border-top: 1px solid rgba(45, 212, 200, 0.06);
        padding-top: 64px;
        padding-bottom: 0;
    }
    .footer .footer-logo {
        font-size: 20px;
        font-weight: 700;
        color: var(--text-white);
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 12px;
    }
    .footer .footer-logo .logo-icon {
        width: 36px;
        height: 36px;
        background: linear-gradient(135deg, var(--accent), var(--gold));
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 18px;
        color: var(--primary);
    }
    .footer .footer-desc {
        font-size: 14px;
        color: var(--text-dim);
        line-height: 1.7;
        max-width: 280px;
    }
    .footer .footer-heading {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 16px;
    }
    .footer .footer-links {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    .footer .footer-links a {
        color: var(--text-dim);
        font-size: 14px;
        transition: var(--transition);
    }
    .footer .footer-links a:hover {
        color: var(--accent);
        padding-left: 4px;
    }
    .footer .footer-contact p {
        font-size: 14px;
        color: var(--text-dim);
        margin-bottom: 6px;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .footer .footer-contact p i {
        width: 18px;
        color: var(--accent);
    }
    .footer .footer-social {
        display: flex;
        gap: 12px;
        margin-top: 12px;
    }
    .footer .footer-social a {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.04);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-dim);
        font-size: 16px;
        transition: var(--transition);
        border: 1px solid rgba(45, 212, 200, 0.06);
    }
    .footer .footer-social a:hover {
        background: rgba(45, 212, 200, 0.1);
        color: var(--accent);
        border-color: var(--accent);
    }
    .footer .footer-bottom {
        margin-top: 48px;
        padding: 20px 0;
        border-top: 1px solid rgba(255, 255, 255, 0.04);
        text-align: center;
        font-size: 14px;
        color: var(--text-dim);
    }

    /* ===== Floating CTA ===== */
    .floating-cta {
        position: fixed;
        bottom: 32px;
        right: 32px;
        z-index: 9999;
        display: flex;
        flex-direction: column;
        gap: 12px;
        align-items: flex-end;
    }
    .floating-cta .float-btn {
        width: 56px;
        height: 56px;
        border-radius: 50%;
        background: var(--accent);
        color: var(--primary);
        border: none;
        box-shadow: var(--shadow-glow);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 24px;
        cursor: pointer;
        transition: var(--transition);
        text-decoration: none;
    }
    .floating-cta .float-btn:hover {
        background: var(--accent-hover);
        box-shadow: var(--shadow-glow-hover);
        transform: scale(1.05);
    }
    .floating-cta .float-btn .float-label {
        display: none;
    }
    @media (max-width: 768px) {
        .floating-cta {
            bottom: 24px;
            right: 16px;
        }
        .floating-cta .float-btn {
            width: 48px;
            height: 48px;
            font-size: 20px;
        }
    }

    /* ===== Responsive Grid Overrides ===== */
    @media (max-width: 768px) {
        .row {
            --bs-gutter-y: 24px;
        }
        .glass-card {
            padding: 24px;
        }
    }

    /* ===== Utility ===== */
    .text-accent {
        color: var(--accent);
    }
    .text-gold {
        color: var(--gold);
    }
    .text-muted-custom {
        color: var(--text-muted);
    }

    /* ===== Smooth scroll offset ===== */
    .anchor-offset {
        scroll-margin-top: 80px;
    }

    /* ===== Bootstrap Override ===== */
    .accordion-button:not(.collapsed) {
        background: transparent;
        box-shadow: none;
    }
    .accordion-button:focus {
        box-shadow: none;
    }
    .btn-primary {
        background: var(--accent) !important;
        border-color: var(--accent) !important;
        box-shadow: var(--shadow-glow) !important;
        color: var(--primary) !important;
        border-radius: var(--radius) !important;
        padding: 12px 28px !important;
        font-weight: 600 !important;
    }
    .btn-primary:hover {
        background: var(--accent-hover) !important;
        box-shadow: var(--shadow-glow-hover) !important;
        transform: translateY(-1px);
    }
    .btn-outline-primary {
        border-color: rgba(45, 212, 200, 0.6) !important;
        color: var(--text-white) !important;
        border-radius: var(--radius) !important;
        padding: 12px 28px !important;
        font-weight: 600 !important;
    }
    .btn-outline-primary:hover {
        background: rgba(45, 212, 200, 0.1) !important;
        border-color: var(--accent) !important;
        color: var(--text-white) !important;
    }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0B1A2E;
            --primary-light: #13273F;
            --accent: #2DD4C8;
            --accent-hover: #3EE7DB;
            --accent-glow: rgba(45, 212, 200, 0.35);
            --gold: #F5A623;
            --gold-glow: rgba(245, 166, 35, 0.3);
            --bg-main: #0A111F;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.08);
            --border-card: rgba(45, 212, 200, 0.12);
            --border-card-hover: rgba(45, 212, 200, 0.25);
            --text-white: #FFFFFF;
            --text-light: #E2E8F0;
            --text-muted: #B0C4DE;
            --text-dim: #4A5568;
            --radius-sm: 10px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.6);
            --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --nav-width-collapsed: 72px;
            --nav-width-expanded: 240px;
            --container-max: 1280px;
            --padding-section: 80px;
            --padding-section-mobile: 48px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background: var(--bg-main);
            color: var(--text-white);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            min-height: 100vh;
            overflow-x: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: var(--accent-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: var(--radius-md);
        }
        button,
        input,
        textarea {
            font-family: var(--font-family);
        }
        ::placeholder {
            color: var(--text-dim);
            opacity: 0.7;
        }
        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
            width: 100%;
        }

        /* ===== 栅格间距 ===== */
        .row.g-5 {
            --bs-gutter-x: 2rem;
            --bs-gutter-y: 2rem;
        }

        /* ===== 左侧 App Shell 导航 ===== */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }
        .nav-appshell {
            position: fixed;
            top: 0;
            left: 0;
            height: 100vh;
            width: var(--nav-width-collapsed);
            background: rgba(11, 30, 46, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-right: 1px solid rgba(45, 212, 200, 0.12);
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 0;
            z-index: 1050;
            transition: width 0.3s ease;
            overflow: hidden;
        }
        .nav-appshell:hover {
            width: var(--nav-width-expanded);
        }
        .nav-logo {
            width: 100%;
            padding: 28px 16px 20px;
            text-align: center;
            flex-shrink: 0;
        }
        .nav-logo a {
            display: flex;
            flex-direction: column;
            align-items: center;
            color: var(--text-white);
            text-decoration: none;
            gap: 4px;
        }
        .nav-logo .logo-icon {
            font-size: 28px;
            color: var(--accent);
            filter: drop-shadow(0 0 12px rgba(45, 212, 200, 0.3));
            transition: transform 0.3s ease;
        }
        .nav-appshell:hover .logo-icon {
            transform: scale(1.05);
        }
        .nav-logo .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 1px;
            white-space: nowrap;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .nav-appshell:hover .logo-text {
            opacity: 1;
        }
        .nav-logo .logo-sub {
            font-size: 11px;
            color: var(--text-muted);
            white-space: nowrap;
            opacity: 0;
            transition: opacity 0.3s ease;
            letter-spacing: 0.5px;
        }
        .nav-appshell:hover .logo-sub {
            opacity: 1;
        }

        .nav-items {
            flex: 1;
            width: 100%;
            display: flex;
            flex-direction: column;
            padding: 12px 0;
            gap: 4px;
        }
        .nav-item {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 20px;
            color: var(--text-muted);
            text-decoration: none;
            border-left: 3px solid transparent;
            transition: all 0.25s ease;
            white-space: nowrap;
            font-size: 15px;
            font-weight: 500;
            position: relative;
            width: 100%;
        }
        .nav-item i {
            font-size: 18px;
            min-width: 24px;
            text-align: center;
            flex-shrink: 0;
        }
        .nav-item .nav-label {
            opacity: 0;
            transition: opacity 0.3s ease;
            font-size: 14px;
        }
        .nav-appshell:hover .nav-item .nav-label {
            opacity: 1;
        }
        .nav-item:hover {
            background: rgba(45, 212, 200, 0.08);
            color: var(--text-white);
        }
        .nav-item.active {
            border-left-color: var(--accent);
            color: var(--accent);
            background: rgba(45, 212, 200, 0.06);
        }
        .nav-item.active .nav-label {
            color: var(--accent);
        }

        .nav-footer {
            width: 100%;
            padding: 16px 12px 20px;
            flex-shrink: 0;
        }
        .social-icons {
            display: flex;
            justify-content: center;
            gap: 12px;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .nav-appshell:hover .social-icons {
            opacity: 1;
        }
        .social-icons a {
            color: var(--text-dim);
            font-size: 16px;
            transition: color 0.25s ease;
        }
        .social-icons a:hover {
            color: var(--accent);
        }

        /* ===== 主内容区 ===== */
        .main-content {
            margin-left: var(--nav-width-collapsed);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left 0.3s ease;
        }

        /* ===== 文章详情页 ===== */
        .article-page {
            flex: 1;
            padding: 40px 0 60px;
        }
        .article-header {
            margin-bottom: 32px;
        }
        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-dim);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb-custom a {
            color: var(--text-dim);
            transition: color 0.2s;
        }
        .breadcrumb-custom a:hover {
            color: var(--accent);
        }
        .breadcrumb-custom .sep {
            color: var(--text-dim);
            opacity: 0.5;
            font-size: 12px;
        }
        .breadcrumb-custom .current {
            color: var(--text-muted);
        }
        .article-title {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-dim);
        }
        .article-meta .category-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(45, 212, 200, 0.15);
            color: var(--accent);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.5px;
        }
        .article-meta .dot {
            color: var(--text-dim);
            opacity: 0.4;
        }
        .article-meta .date {
            color: var(--text-dim);
        }

        .article-body {
            max-width: 800px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text-light);
        }
        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-white);
            margin-top: 36px;
            margin-bottom: 16px;
        }
        .article-body h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-white);
            margin-top: 28px;
            margin-bottom: 12px;
        }
        .article-body p {
            margin-bottom: 16px;
        }
        .article-body blockquote {
            border-left: 3px solid var(--accent);
            background: rgba(45, 212, 200, 0.04);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
            box-shadow: var(--shadow-card);
        }
        .article-body ul,
        .article-body ol {
            padding-left: 24px;
            margin-bottom: 16px;
        }
        .article-body li {
            margin-bottom: 6px;
        }
        .article-body code {
            background: rgba(255, 255, 255, 0.06);
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 14px;
            color: var(--accent);
        }
        .article-body pre {
            background: rgba(0, 0, 0, 0.3);
            padding: 20px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            border: 1px solid rgba(45, 212, 200, 0.1);
        }
        .article-body pre code {
            background: none;
            color: var(--text-light);
            padding: 0;
        }
        .article-divider {
            border: none;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(45, 212, 200, 0.2), transparent);
            margin: 48px 0;
        }

        /* ===== 相关推荐 ===== */
        .related-section {
            max-width: 800px;
            margin: 0 auto;
        }
        .related-title {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 24px;
            position: relative;
            display: inline-block;
        }
        .related-title::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .related-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 0;
            overflow: hidden;
            transition: all 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .related-card .card-img {
            height: 120px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .related-card .card-img .cat-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(45, 212, 200, 0.85);
            color: #0B1A2E;
            font-size: 11px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 12px;
            letter-spacing: 0.3px;
        }
        .related-card .card-body {
            padding: 16px 18px 18px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .card-body h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 8px;
            line-height: 1.4;
            flex: 1;
        }
        .related-card .card-body .card-link {
            font-size: 13px;
            color: var(--accent);
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.2s;
        }
        .related-card .card-body .card-link:hover {
            gap: 8px;
        }

        .back-home-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--accent);
            font-size: 15px;
            font-weight: 500;
            transition: gap 0.2s;
            margin-top: 8px;
        }
        .back-home-link:hover {
            gap: 14px;
            color: var(--accent-hover);
        }

        /* ===== 空状态 ===== */
        .not-found-box {
            text-align: center;
            padding: 80px 20px;
        }
        .not-found-box .nf-icon {
            font-size: 56px;
            color: var(--text-dim);
            margin-bottom: 20px;
        }
        .not-found-box h2 {
            font-size: 28px;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .not-found-box p {
            color: var(--text-muted);
            font-size: 16px;
            margin-bottom: 24px;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: #060D1A;
            padding: 60px 0 0;
            border-top: 1px solid rgba(45, 212, 200, 0.06);
            margin-top: auto;
        }
        .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo .logo-icon {
            font-size: 26px;
            color: var(--accent);
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 360px;
        }
        .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer-social a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-dim);
            font-size: 16px;
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-social a:hover {
            background: rgba(45, 212, 200, 0.15);
            color: var(--accent);
            border-color: rgba(45, 212, 200, 0.3);
            transform: translateY(-2px);
        }
        .footer-heading {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-heading::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 1px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            transition: color 0.2s, padding-left 0.2s;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-contact p {
            color: var(--text-muted);
            font-size: 14px;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact p i {
            width: 16px;
            color: var(--accent);
            font-size: 14px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            margin-top: 40px;
            text-align: center;
        }
        .footer-bottom p {
            font-size: 14px;
            color: var(--text-dim);
            margin: 0;
        }

        /* ===== 浮动 CTA ===== */
        .floating-cta {
            position: fixed;
            bottom: 32px;
            right: 32px;
            z-index: 9999;
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #0B1A2E;
            border: none;
            border-radius: 50px;
            padding: 14px 28px;
            font-size: 16px;
            font-weight: 600;
            box-shadow: 0 0 24px rgba(45, 212, 200, 0.35);
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
        }
        .floating-cta i {
            font-size: 18px;
        }
        .floating-cta:hover {
            background: var(--accent-hover);
            box-shadow: 0 0 40px rgba(45, 212, 200, 0.5);
            transform: translateY(-2px);
            color: #0B1A2E;
        }
        .floating-cta:active {
            transform: scale(0.97);
        }
        .floating-cta .cta-label {
            white-space: nowrap;
        }

        /* ===== 按钮通用 ===== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
        }
        .btn-custom-primary {
            background: var(--accent);
            color: #0B1A2E;
            box-shadow: 0 0 24px var(--accent-glow);
        }
        .btn-custom-primary:hover {
            background: var(--accent-hover);
            box-shadow: 0 0 40px rgba(45, 212, 200, 0.5);
            color: #0B1A2E;
            transform: translateY(-1px);
        }
        .btn-custom-primary:active {
            transform: scale(0.97);
        }
        .btn-custom-outline {
            background: transparent;
            border: 2px solid rgba(45, 212, 200, 0.6);
            color: var(--text-white);
        }
        .btn-custom-outline:hover {
            background: rgba(45, 212, 200, 0.1);
            border-color: var(--accent);
            color: var(--text-white);
        }

        /* ===== 玻璃卡片 ===== */
        .glass-card {
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.08));
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-card);
            border-radius: var(--radius-md);
            padding: 32px;
            transition: all 0.3s ease;
        }
        .glass-card:hover {
            border-color: var(--border-card-hover);
            box-shadow: var(--shadow-card-hover);
        }

        /* ===== 文章未找到 ===== */
        .content-missing {
            text-align: center;
            padding: 60px 20px;
        }
        .content-missing .missing-icon {
            font-size: 48px;
            color: var(--text-dim);
            margin-bottom: 16px;
        }
        .content-missing h3 {
            color: var(--text-white);
            font-size: 22px;
            margin-bottom: 8px;
        }
        .content-missing p {
            color: var(--text-muted);
            font-size: 15px;
        }

        /* ===== 移动端顶部导航栏（<992px）===== */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: rgba(11, 30, 46, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(45, 212, 200, 0.1);
            z-index: 1060;
            padding: 0 16px;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-topbar .mob-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-white);
            font-weight: 700;
            font-size: 18px;
            text-decoration: none;
        }
        .mobile-topbar .mob-logo i {
            color: var(--accent);
            font-size: 22px;
        }
        .mobile-topbar .hamburger {
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 24px;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .mobile-topbar .hamburger:hover {
            background: rgba(255, 255, 255, 0.06);
        }

        /* ===== 移动端抽屉 ===== */
        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(4px);
            z-index: 1070;
        }
        .drawer-overlay.open {
            display: block;
        }
        .drawer-menu {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            height: 100vh;
            background: #0B1A2E;
            border-right: 1px solid rgba(45, 212, 200, 0.12);
            z-index: 1080;
            transition: left 0.35s ease;
            padding: 24px 0;
            display: flex;
            flex-direction: column;
        }
        .drawer-menu.open {
            left: 0;
        }
        .drawer-menu .drawer-header {
            padding: 0 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .drawer-menu .drawer-header .drawer-logo {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .drawer-menu .drawer-header .drawer-logo i {
            color: var(--accent);
        }
        .drawer-menu .drawer-header .close-drawer {
            background: none;
            border: none;
            color: var(--text-dim);
            font-size: 20px;
            cursor: pointer;
            padding: 4px;
        }
        .drawer-menu .drawer-header .close-drawer:hover {
            color: var(--text-white);
        }
        .drawer-menu .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 2px;
            padding: 0 12px;
            flex: 1;
        }
        .drawer-menu .drawer-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 16px;
            color: var(--text-muted);
            font-size: 16px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all 0.2s;
            text-decoration: none;
        }
        .drawer-menu .drawer-nav a i {
            width: 20px;
            text-align: center;
            font-size: 18px;
        }
        .drawer-menu .drawer-nav a:hover {
            background: rgba(45, 212, 200, 0.08);
            color: var(--text-white);
        }
        .drawer-menu .drawer-nav a.active {
            background: rgba(45, 212, 200, 0.1);
            color: var(--accent);
        }
        .drawer-menu .drawer-footer {
            padding: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            justify-content: center;
            gap: 16px;
        }
        .drawer-menu .drawer-footer a {
            color: var(--text-dim);
            font-size: 18px;
            transition: color 0.2s;
        }
        .drawer-menu .drawer-footer a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1200px) {
            .article-title {
                font-size: 30px;
            }
            .article-body {
                max-width: 720px;
            }
        }

        @media (max-width: 992px) {
            :root {
                --nav-width-collapsed: 0px;
            }
            .nav-appshell {
                display: none;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 56px;
            }
            .article-page {
                padding: 24px 0 40px;
            }
            .article-title {
                font-size: 26px;
            }
            .article-body {
                max-width: 100%;
                font-size: 15px;
            }
            .related-card .card-img {
                height: 100px;
            }
            .floating-cta {
                bottom: 20px;
                right: 16px;
                padding: 12px 20px;
                font-size: 14px;
                border-radius: 40px;
            }
            .floating-cta .cta-label {
                display: none;
            }
            .floating-cta i {
                font-size: 20px;
                margin: 0;
            }
            .floating-cta {
                width: 48px;
                height: 48px;
                padding: 0;
                justify-content: center;
                border-radius: 50%;
            }
            .footer {
                padding: 40px 0 0;
            }
            .footer-bottom {
                margin-top: 24px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --padding-section: 48px;
                --padding-section-mobile: 32px;
            }
            .article-title {
                font-size: 22px;
            }
            .article-meta {
                font-size: 13px;
                gap: 10px;
            }
            .article-body {
                font-size: 14px;
                line-height: 1.75;
            }
            .article-body h2 {
                font-size: 20px;
            }
            .article-body h3 {
                font-size: 18px;
            }
            .related-title {
                font-size: 20px;
            }
            .related-card .card-img {
                height: 90px;
            }
            .related-card .card-body h5 {
                font-size: 14px;
            }
            .breadcrumb-custom {
                font-size: 12px;
            }
            .footer-heading {
                font-size: 15px;
            }
        }

        @media (max-width: 576px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .article-title {
                font-size: 20px;
            }
            .article-body {
                font-size: 14px;
            }
            .article-body blockquote {
                padding: 12px 16px;
                font-size: 14px;
            }
            .article-meta .category-tag {
                font-size: 11px;
                padding: 2px 10px;
            }
            .related-card .card-img {
                height: 80px;
            }
            .floating-cta {
                bottom: 16px;
                right: 12px;
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
            .not-found-box .nf-icon {
                font-size: 40px;
            }
            .not-found-box h2 {
                font-size: 22px;
            }
        }

        /* ===== 工具栏辅助 ===== */
        .text-accent {
            color: var(--accent);
        }
        .text-gold {
            color: var(--gold);
        }
        .fw-600 {
            font-weight: 600;
        }
        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }

/* roulang page: category1 */
:root {
            --primary: #0B1A2E;
            --primary-light: #0F2240;
            --accent: #2DD4C8;
            --accent-hover: #3EE7DB;
            --accent-glow: rgba(45, 212, 200, 0.35);
            --gold: #F5A623;
            --gold-glow: rgba(245, 166, 35, 0.3);
            --bg-deep: #0A111F;
            --bg-card: rgba(255, 255, 255, 0.04);
            --bg-card-hover: rgba(255, 255, 255, 0.08);
            --border-glass: rgba(45, 212, 200, 0.12);
            --border-glass-hover: rgba(45, 212, 200, 0.25);
            --text-white: #FFFFFF;
            --text-muted: #B0C4DE;
            --text-dim: #4A5568;
            --text-secondary: #8899AA;
            --font-sans: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 40px rgba(45, 212, 200, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --nav-width-collapsed: 72px;
            --nav-width-expanded: 240px;
            --container-max: 1280px;
            --padding-section: 80px;
            --padding-section-mobile: 48px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        body {
            font-family: var(--font-sans);
            background: var(--bg-deep);
            color: var(--text-white);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            overflow-x: hidden;
            min-height: 100vh;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent-hover);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            outline: none;
            border: none;
        }
        .container {
            max-width: var(--container-max);
            padding-left: 24px;
            padding-right: 24px;
            margin-left: auto;
            margin-right: auto;
        }
        .row {
            margin-left: -12px;
            margin-right: -12px;
        }
        .row>[class*="col-"] {
            padding-left: 12px;
            padding-right: 12px;
        }
        .section-padding {
            padding-top: var(--padding-section);
            padding-bottom: var(--padding-section);
        }
        @media (max-width: 768px) {
            .section-padding {
                padding-top: var(--padding-section-mobile);
                padding-bottom: var(--padding-section-mobile);
            }
        }
        /* App Shell Layout */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }
        .app-main {
            flex: 1;
            margin-left: var(--nav-width-collapsed);
            transition: margin-left 0.3s ease;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        @media (max-width: 991.98px) {
            .app-main {
                margin-left: 0;
                padding-top: 56px;
            }
        }
        /* Left Navigation */
        .nav-appshell {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width-collapsed);
            height: 100vh;
            background: rgba(11, 26, 46, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-right: 1px solid rgba(45, 212, 200, 0.12);
            display: flex;
            flex-direction: column;
            align-items: center;
            z-index: 1040;
            transition: width 0.3s ease;
            overflow: hidden;
        }
        .nav-appshell:hover {
            width: var(--nav-width-expanded);
        }
        @media (max-width: 991.98px) {
            .nav-appshell {
                display: none;
            }
            .nav-appshell:hover {
                width: var(--nav-width-collapsed);
            }
        }
        .nav-logo {
            padding: 32px 0 24px;
            text-align: center;
            width: 100%;
            flex-shrink: 0;
        }
        .nav-logo a {
            display: flex;
            flex-direction: column;
            align-items: center;
            color: var(--text-white);
            text-decoration: none;
            gap: 4px;
        }
        .nav-logo .logo-icon {
            font-size: 28px;
            color: var(--accent);
            filter: drop-shadow(0 0 12px rgba(45, 212, 200, 0.4));
            transition: var(--transition);
        }
        .nav-logo .logo-text {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-white);
            letter-spacing: 1px;
            white-space: nowrap;
        }
        .nav-logo .logo-sub {
            font-size: 10px;
            color: var(--text-secondary);
            white-space: nowrap;
            letter-spacing: 0.5px;
            opacity: 0.7;
        }
        .nav-items {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 16px 0;
            width: 100%;
            gap: 4px;
        }
        .nav-item {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 100%;
            padding: 12px 0;
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            white-space: nowrap;
            gap: 12px;
        }
        .nav-item i {
            font-size: 20px;
            min-width: 20px;
            text-align: center;
            transition: var(--transition);
        }
        .nav-item .nav-label {
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            font-size: 13px;
        }
        .nav-appshell:hover .nav-item .nav-label {
            opacity: 1;
            visibility: visible;
        }
        .nav-appshell:not(:hover) .nav-item .nav-label {
            display: none;
        }
        .nav-item:hover {
            background: rgba(45, 212, 200, 0.08);
            color: var(--text-white);
        }
        .nav-item.active {
            color: var(--accent);
            background: rgba(45, 212, 200, 0.06);
            box-shadow: inset 3px 0 0 var(--accent);
        }
        .nav-item.active i {
            color: var(--accent);
            text-shadow: 0 0 16px rgba(45, 212, 200, 0.3);
        }
        .nav-footer {
            padding: 16px 0 24px;
            width: 100%;
            display: flex;
            justify-content: center;
        }
        .nav-footer .social-icons {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .nav-footer .social-icons a {
            color: var(--text-dim);
            font-size: 16px;
            transition: var(--transition);
        }
        .nav-footer .social-icons a:hover {
            color: var(--accent);
        }
        /* Mobile Top Bar */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: rgba(11, 26, 46, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(45, 212, 200, 0.1);
            z-index: 1050;
            padding: 0 16px;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-topbar .logo-wrap {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-white);
            font-weight: 700;
            font-size: 18px;
        }
        .mobile-topbar .logo-wrap i {
            color: var(--accent);
            font-size: 22px;
        }
        .mobile-topbar .hamburger {
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 24px;
            padding: 8px;
            cursor: pointer;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .mobile-topbar .hamburger:hover {
            background: rgba(45, 212, 200, 0.1);
        }
        @media (max-width: 991.98px) {
            .mobile-topbar {
                display: flex;
            }
        }
        /* Drawer Overlay */
        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(4px);
            z-index: 1060;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .drawer-overlay.open {
            display: block;
            opacity: 1;
        }
        .drawer-panel {
            position: fixed;
            top: 0;
            left: -280px;
            width: 280px;
            height: 100vh;
            background: rgba(11, 26, 46, 0.98);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-right: 1px solid rgba(45, 212, 200, 0.1);
            z-index: 1070;
            transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            flex-direction: column;
            padding: 24px 0;
        }
        .drawer-panel.open {
            left: 0;
        }
        .drawer-panel .drawer-logo {
            padding: 0 24px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
            color: var(--text-white);
            font-size: 20px;
            font-weight: 700;
        }
        .drawer-panel .drawer-logo i {
            color: var(--accent);
            font-size: 26px;
        }
        .drawer-panel .drawer-nav {
            flex: 1;
            display: flex;
            flex-direction: column;
            padding: 0 16px;
            gap: 2px;
        }
        .drawer-panel .drawer-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 16px;
            color: var(--text-secondary);
            font-size: 16px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            text-decoration: none;
        }
        .drawer-panel .drawer-nav a i {
            font-size: 18px;
            width: 24px;
            text-align: center;
        }
        .drawer-panel .drawer-nav a:hover {
            background: rgba(45, 212, 200, 0.08);
            color: var(--text-white);
        }
        .drawer-panel .drawer-nav a.active {
            color: var(--accent);
            background: rgba(45, 212, 200, 0.1);
        }
        .drawer-panel .drawer-footer {
            padding: 24px 24px 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            gap: 16px;
            justify-content: center;
            color: var(--text-dim);
            font-size: 14px;
        }
        .drawer-panel .drawer-footer a {
            color: var(--text-dim);
            font-size: 18px;
            transition: var(--transition);
        }
        .drawer-panel .drawer-footer a:hover {
            color: var(--accent);
        }
        .drawer-close {
            position: absolute;
            top: 16px;
            right: 16px;
            background: none;
            border: none;
            color: var(--text-secondary);
            font-size: 22px;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .drawer-close:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.06);
        }
        /* Glass Card */
        .glass-card {
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.08));
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius);
            padding: 32px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }
        .glass-card:hover {
            border-color: var(--border-glass-hover);
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(45, 212, 200, 0.05);
            transform: translateY(-2px);
        }
        .glass-card .card-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            color: var(--primary);
            box-shadow: 0 0 20px rgba(45, 212, 200, 0.2);
        }
        .glass-card .card-icon.gold {
            background: linear-gradient(135deg, var(--gold), #FFC944);
            box-shadow: 0 0 20px var(--gold-glow);
        }
        .glass-card .card-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .glass-card .card-desc {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .glass-card.accent-left {
            border-left: 3px solid var(--accent);
        }
        .glass-card.accent-top {
            border-top: 3px solid var(--accent);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(45, 212, 200, 0.1);
        }
        /* Buttons */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius);
            font-size: 16px;
            font-weight: 600;
            font-family: var(--font-sans);
            transition: var(--transition);
            cursor: pointer;
            border: none;
            text-decoration: none;
            line-height: 1.4;
        }
        .btn-custom.btn-accent {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 0 24px rgba(45, 212, 200, 0.3);
        }
        .btn-custom.btn-accent:hover {
            background: var(--accent-hover);
            box-shadow: 0 0 40px rgba(45, 212, 200, 0.5);
            transform: translateY(-1px);
            color: var(--primary);
        }
        .btn-custom.btn-accent:active {
            transform: scale(0.97);
        }
        .btn-custom.btn-outline-custom {
            background: transparent;
            border: 2px solid rgba(45, 212, 200, 0.6);
            color: var(--text-white);
        }
        .btn-custom.btn-outline-custom:hover {
            background: rgba(45, 212, 200, 0.1);
            border-color: var(--accent);
            color: var(--text-white);
            transform: translateY(-1px);
        }
        .btn-custom.btn-outline-custom:active {
            transform: scale(0.97);
        }
        .btn-custom.btn-gold {
            background: var(--gold);
            color: var(--primary);
            box-shadow: 0 0 24px var(--gold-glow);
        }
        .btn-custom.btn-gold:hover {
            background: #FFC944;
            box-shadow: 0 0 40px rgba(245, 166, 35, 0.4);
            transform: translateY(-1px);
            color: var(--primary);
        }
        .btn-custom.btn-gold:active {
            transform: scale(0.97);
        }
        .btn-custom.btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }
        .btn-custom.btn-lg {
            padding: 16px 36px;
            font-size: 18px;
        }
        /* Section Titles */
        .section-title {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.2;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 640px;
            line-height: 1.7;
        }
        .section-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
            display: block;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 28px;
            }
            .section-subtitle {
                font-size: 16px;
            }
        }
        /* Hero */
        .hero-category {
            position: relative;
            min-height: 70vh;
            display: flex;
            align-items: center;
            background: radial-gradient(ellipse at 30% 40%, rgba(45, 212, 200, 0.12), transparent 60%),
                radial-gradient(ellipse at 80% 60%, rgba(245, 166, 35, 0.06), transparent 50%),
                linear-gradient(135deg, var(--primary) 0%, var(--bg-deep) 100%);
            overflow: hidden;
            padding: 80px 0 60px;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(45, 212, 200, 0.08), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-category .hero-bg-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.06;
            pointer-events: none;
            border-radius: 0;
        }
        .hero-category .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-category .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(45, 212, 200, 0.12);
            border: 1px solid rgba(45, 212, 200, 0.2);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            color: var(--accent);
            font-weight: 500;
            margin-bottom: 20px;
        }
        .hero-category h1 {
            font-size: 52px;
            font-weight: 900;
            color: var(--text-white);
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-category h1 .highlight {
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-category .hero-desc {
            font-size: 20px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 600px;
            margin-bottom: 32px;
        }
        .hero-category .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        @media (max-width: 768px) {
            .hero-category {
                min-height: 60vh;
                padding: 60px 0 40px;
            }
            .hero-category h1 {
                font-size: 32px;
            }
            .hero-category .hero-desc {
                font-size: 17px;
            }
        }
        /* Process / Timeline */
        .process-step {
            display: flex;
            gap: 24px;
            padding: 24px 0;
            border-bottom: 1px solid rgba(45, 212, 200, 0.06);
        }
        .process-step:last-child {
            border-bottom: none;
        }
        .process-step .step-num {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(45, 212, 200, 0.1);
            border: 1px solid rgba(45, 212, 200, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            color: var(--accent);
        }
        .process-step .step-content h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 6px;
        }
        .process-step .step-content p {
            font-size: 15px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }
        /* Case Card */
        .case-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-glass);
            transition: var(--transition);
            height: 100%;
        }
        .case-card:hover {
            border-color: var(--border-glass-hover);
            transform: translateY(-4px);
            box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 30px rgba(45, 212, 200, 0.05);
        }
        .case-card .case-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            transition: var(--transition);
        }
        .case-card:hover .case-img {
            transform: scale(1.02);
        }
        .case-card .case-body {
            padding: 20px 24px 24px;
        }
        .case-card .case-tag {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(45, 212, 200, 0.12);
            color: var(--accent);
            margin-bottom: 10px;
        }
        .case-card .case-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .case-card .case-desc {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 0;
        }
        /* Why choose */
        .reason-item {
            display: flex;
            gap: 16px;
            padding: 20px 0;
            border-bottom: 1px solid rgba(45, 212, 200, 0.05);
        }
        .reason-item:last-child {
            border-bottom: none;
        }
        .reason-item .reason-icon {
            flex-shrink: 0;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: rgba(45, 212, 200, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--accent);
        }
        .reason-item .reason-content h5 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 4px;
        }
        .reason-item .reason-content p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }
        /* Stat Block */
        .stat-block {
            text-align: center;
            padding: 24px 16px;
        }
        .stat-block .stat-number {
            font-size: 48px;
            font-weight: 700;
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        .stat-block .stat-label {
            font-size: 15px;
            color: var(--text-muted);
            margin-top: 8px;
        }
        .stat-block .stat-line {
            width: 40px;
            height: 2px;
            background: var(--accent);
            margin: 12px auto 0;
            border-radius: 2px;
        }
        /* FAQ Accordion */
        .accordion-custom .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid rgba(45, 212, 200, 0.08);
            padding: 4px 0;
        }
        .accordion-custom .accordion-button {
            background: transparent;
            color: var(--text-white);
            font-size: 17px;
            font-weight: 500;
            padding: 18px 16px 18px 0;
            box-shadow: none;
            border: none;
            font-family: var(--font-sans);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .accordion-custom .accordion-button::after {
            content: none;
        }
        .accordion-custom .accordion-button .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(45, 212, 200, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--accent);
            transition: var(--transition);
        }
        .accordion-custom .accordion-button:not(.collapsed) .faq-icon {
            transform: rotate(45deg);
            background: rgba(245, 166, 35, 0.15);
            color: var(--gold);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            color: var(--accent);
            background: transparent;
        }
        .accordion-custom .accordion-button:hover {
            background: rgba(45, 212, 200, 0.04);
        }
        .accordion-custom .accordion-body {
            padding: 0 16px 18px 40px;
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.7;
        }
        /* CTA Section */
        .cta-section {
            background: radial-gradient(ellipse at 30% 50%, rgba(45, 212, 200, 0.08), transparent 60%),
                linear-gradient(135deg, var(--primary) 0%, var(--bg-deep) 100%);
            border-top: 1px solid rgba(45, 212, 200, 0.06);
            border-bottom: 1px solid rgba(45, 212, 200, 0.06);
        }
        .cta-section .cta-title {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-white);
            line-height: 1.2;
        }
        .cta-section .cta-desc {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 16px auto 32px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .cta-section .cta-title {
                font-size: 28px;
            }
            .cta-section .cta-desc {
                font-size: 16px;
            }
        }
        /* Footer (shared) */
        .footer {
            background: #060D1A;
            padding: 64px 0 0;
            border-top: 1px solid rgba(45, 212, 200, 0.06);
            margin-top: auto;
        }
        .footer .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer .footer-logo .logo-icon {
            color: var(--accent);
            font-size: 26px;
            filter: drop-shadow(0 0 12px rgba(45, 212, 200, 0.3));
        }
        .footer .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 20px;
            max-width: 320px;
        }
        .footer .footer-social {
            display: flex;
            gap: 14px;
        }
        .footer .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-dim);
            font-size: 16px;
            transition: var(--transition);
            text-decoration: none;
        }
        .footer .footer-social a:hover {
            background: rgba(45, 212, 200, 0.15);
            color: var(--accent);
        }
        .footer .footer-heading {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer .footer-heading::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: var(--transition);
            text-decoration: none;
        }
        .footer .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer .footer-contact p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer .footer-contact p i {
            width: 16px;
            color: var(--accent);
            font-size: 14px;
        }
        .footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px 0;
            margin-top: 48px;
            text-align: center;
        }
        .footer .footer-bottom p {
            font-size: 13px;
            color: var(--text-dim);
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .footer {
                padding: 40px 0 0;
            }
            .footer .footer-bottom {
                margin-top: 32px;
            }
        }
        /* Floating CTA */
        .floating-cta {
            position: fixed;
            bottom: 32px;
            right: 32px;
            z-index: 9999;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        .floating-cta .float-btn {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            border: none;
            font-size: 24px;
            cursor: pointer;
            box-shadow: 0 0 32px rgba(45, 212, 200, 0.4);
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            text-decoration: none;
        }
        .floating-cta .float-btn:hover {
            background: var(--accent-hover);
            box-shadow: 0 0 48px rgba(45, 212, 200, 0.6);
            transform: scale(1.05);
        }
        .floating-cta .float-text {
            font-size: 11px;
            color: var(--text-muted);
            font-weight: 500;
            background: rgba(11, 26, 46, 0.8);
            padding: 4px 12px;
            border-radius: 50px;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(45, 212, 200, 0.1);
            white-space: nowrap;
        }
        @media (max-width: 768px) {
            .floating-cta {
                bottom: 20px;
                right: 16px;
            }
            .floating-cta .float-btn {
                width: 48px;
                height: 48px;
                font-size: 20px;
            }
            .floating-cta .float-text {
                display: none;
            }
        }
        /* Scroll indicator */
        .scroll-indicator {
            position: absolute;
            bottom: 32px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            color: var(--text-dim);
            font-size: 12px;
            letter-spacing: 1px;
            animation: floatDown 2s ease-in-out infinite;
            z-index: 2;
        }
        .scroll-indicator i {
            font-size: 16px;
            color: var(--accent);
        }
        @keyframes floatDown {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
                opacity: 0.6;
            }
            50% {
                transform: translateX(-50%) translateY(8px);
                opacity: 1;
            }
        }
        /* Utility */
        .text-accent {
            color: var(--accent);
        }
        .text-gold {
            color: var(--gold);
        }
        .text-muted-custom {
            color: var(--text-muted);
        }
        .bg-gradient-accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-hover));
        }
        .mt-40 {
            margin-top: 40px;
        }
        .mb-40 {
            margin-bottom: 40px;
        }
        .gap-16 {
            gap: 16px;
        }
        .gap-24 {
            gap: 24px;
        }
        /* Breadcrumb */
        .breadcrumb-custom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-dim);
            margin-bottom: 24px;
            padding: 0;
            list-style: none;
        }
        .breadcrumb-custom li {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .breadcrumb-custom li+li::before {
            content: '›';
            color: var(--text-dim);
            font-size: 16px;
        }
        .breadcrumb-custom a {
            color: var(--text-dim);
            text-decoration: none;
            transition: var(--transition);
        }
        .breadcrumb-custom a:hover {
            color: var(--accent);
        }
        .breadcrumb-custom .current {
            color: var(--text-muted);
        }
        /* Responsive */
        @media (max-width: 991.98px) {
            .app-main {
                margin-left: 0;
            }
            .nav-appshell {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .hero-category h1 {
                font-size: 32px;
            }
            .hero-category .hero-desc {
                font-size: 16px;
            }
            .section-title {
                font-size: 28px;
            }
            .process-step {
                flex-direction: column;
                gap: 12px;
            }
            .process-step .step-num {
                width: 40px;
                height: 40px;
                font-size: 16px;
            }
            .stat-block .stat-number {
                font-size: 36px;
            }
            .footer .footer-heading {
                margin-top: 16px;
            }
        }
        @media (max-width: 576px) {
            .hero-category {
                padding: 48px 0 32px;
                min-height: 50vh;
            }
            .hero-category h1 {
                font-size: 28px;
            }
            .hero-category .hero-actions {
                flex-direction: column;
                gap: 12px;
            }
            .hero-category .hero-actions .btn-custom {
                width: 100%;
                justify-content: center;
            }
            .glass-card {
                padding: 24px;
            }
            .floating-cta .float-btn {
                width: 44px;
                height: 44px;
                font-size: 18px;
            }
        }
        /* Image overlay for hero */
        .hero-overlay-img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.04;
            pointer-events: none;
            border-radius: 0;
        }
        /* Tag */
        .tag-sm {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(45, 212, 200, 0.1);
            color: var(--accent);
            border: 1px solid rgba(45, 212, 200, 0.15);
        }
        /* Divider */
        .divider-accent {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            border-radius: 4px;
            margin: 16px 0 24px;
        }
        .divider-accent.center {
            margin-left: auto;
            margin-right: auto;
        }
        .divider-accent.gold {
            background: linear-gradient(90deg, var(--gold), transparent);
        }
        /* Responsive table for features */
        @media (max-width: 768px) {
            .row.g-4>[class*="col-"] {
                margin-bottom: 16px;
            }
        }
        /* Category page specific */
        .category-content .category-block {
            margin-bottom: 48px;
        }
        .category-content .category-block:last-child {
            margin-bottom: 0;
        }
        .category-hero-img {
            width: 100%;
            height: 100%;
            min-height: 280px;
            object-fit: cover;
            border-radius: var(--radius-lg);
            box-shadow: 0 0 40px rgba(45, 212, 200, 0.1);
        }
        .category-hero-wrapper {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
        }
        .category-hero-wrapper::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 26, 46, 0.4), transparent 60%);
            pointer-events: none;
            border-radius: var(--radius-lg);
        }
        .invert-radius {
            border-radius: var(--radius-lg);
        }
        /* Feature grid extra */
        .feature-card-accent {
            position: relative;
        }
        .feature-card-accent .accent-bar {
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: var(--accent);
            border-radius: 4px 0 0 4px;
            box-shadow: 0 0 16px rgba(45, 212, 200, 0.3);
        }
        .feature-card-accent .accent-bar.gold-bar {
            background: var(--gold);
            box-shadow: 0 0 16px var(--gold-glow);
        }
        .feature-card-accent .accent-top-line {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--accent);
            border-radius: 4px 4px 0 0;
            box-shadow: 0 0 20px rgba(45, 212, 200, 0.3);
        }