/* roulang page: index */
:root {
            --brand-dark: #101820;
            --brand-panel: #0F1F1A;
            --brand-accent: #C8F04B;
            --brand-signal: #FF5C35;
            --brand-light: #F4F7F4;
            --brand-muted: #6B7B76;
            --brand-border: #DCE3DE;
            --brand-radius-sm: 8px;
            --brand-radius-md: 14px;
            --brand-radius-lg: 18px;
            --brand-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --brand-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
            --brand-space-section: 88px;
            --brand-space-card: 24px;
            --brand-font-h1: 44px;
            --brand-font-h2: 32px;
            --brand-font-h3: 24px;
            --brand-font-body: 16px;
            --brand-line-height: 1.8;
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font-sans, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Inter', system-ui, sans-serif); background: var(--brand-light); color: var(--brand-dark); line-height: var(--brand-line-height); font-size: var(--brand-font-body); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
        button { cursor: pointer; transition: all 0.25s ease; font-family: inherit; }
        input, select, textarea { font-family: inherit; font-size: 1rem; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 1024px) { .container { padding: 0 20px; } }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        .section-space { padding: var(--brand-space-section) 0; }
        @media (max-width: 768px) { .section-space { padding: 48px 0; } }

        .nav-link { position: relative; display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 10px 14px; border-radius: 10px; font-size: 0.85rem; font-weight: 600; color: #44504B; transition: all 0.25s ease; border: 1px solid transparent; }
        .nav-link:hover { background: #E8EEE9; color: var(--brand-dark); border-color: var(--brand-border); }
        .nav-link.active { background: var(--brand-dark); color: var(--brand-accent); border-color: var(--brand-dark); }
        .nav-link .nav-icon { font-size: 1.3rem; line-height: 1; }
        @media (max-width: 768px) { .nav-link { padding: 6px 10px; font-size: 0.72rem; } .nav-link .nav-icon { font-size: 1.1rem; } }

        .btn-primary { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--brand-dark); color: #fff; font-weight: 700; padding: 12px 24px; border-radius: 10px; font-size: 0.95rem; border: 2px solid var(--brand-dark); transition: all 0.25s ease; }
        .btn-primary:hover { background: #1A2A32; border-color: #1A2A32; transform: translateY(-2px); box-shadow: var(--brand-shadow-hover); }
        .btn-primary:focus-visible { outline: 3px solid var(--brand-accent); outline-offset: 3px; }

        .btn-signal { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--brand-signal); color: #fff; font-weight: 700; padding: 12px 24px; border-radius: 10px; font-size: 0.95rem; border: 2px solid var(--brand-signal); transition: all 0.25s ease; }
        .btn-signal:hover { background: #E04A28; border-color: #E04A28; transform: translateY(-2px); box-shadow: var(--brand-shadow-hover); }
        .btn-signal:focus-visible { outline: 3px solid var(--brand-accent); outline-offset: 3px; }

        .btn-outline { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: transparent; color: var(--brand-dark); font-weight: 600; padding: 12px 24px; border-radius: 10px; font-size: 0.95rem; border: 2px solid var(--brand-border); transition: all 0.25s ease; }
        .btn-outline:hover { background: rgba(0, 0, 0, 0.06); border-color: #B8C4BC; transform: translateY(-2px); }
        .btn-outline:focus-visible { outline: 3px solid var(--brand-accent); outline-offset: 3px; }

        .badge-accent { display: inline-block; background: var(--brand-accent); color: var(--brand-dark); font-size: 0.78rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; letter-spacing: 0.02em; }
        .badge-signal { display: inline-block; background: var(--brand-signal); color: #fff; font-size: 0.78rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; }
        .badge-dark { display: inline-block; background: var(--brand-dark); color: var(--brand-accent); font-size: 0.78rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; }

        .card-base { background: #fff; border-radius: var(--brand-radius-md); box-shadow: var(--brand-shadow); border: 1px solid var(--brand-border); transition: all 0.3s ease; }
        .card-base:hover { box-shadow: var(--brand-shadow-hover); transform: translateY(-3px); border-color: #B8C4BC; }

        .metric-card { background: var(--brand-panel); border-radius: var(--brand-radius-sm); border: 1px solid #1E3830; padding: 22px 20px; transition: all 0.3s ease; }
        .metric-card:hover { border-color: var(--brand-accent); transform: translateY(-2px); }
        .metric-card .metric-value { font-size: 2rem; font-weight: 800; color: var(--brand-accent); letter-spacing: -0.5px; font-family: var(--font-mono, 'DIN Alternate', 'Roboto Condensed', monospace); }
        .metric-card .metric-label { color: #A6B8B0; font-size: 0.82rem; font-weight: 500; margin-top: 4px; }
        .metric-card .metric-trend { color: var(--brand-signal); font-size: 0.8rem; font-weight: 700; margin-top: 6px; }

        .news-item { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--brand-border); transition: all 0.3s ease; }
        .news-item:hover { background: #F0F5F0; border-radius: 8px; padding-left: 14px; padding-right: 14px; }
        .news-item .news-date { min-width: 76px; font-family: var(--font-mono, monospace); font-weight: 700; color: var(--brand-signal); font-size: 0.85rem; }
        .news-item .news-body { flex: 1; }
        .news-item .news-title { font-weight: 700; font-size: 1.05rem; color: var(--brand-dark); margin-bottom: 4px; }
        .news-item .news-summary { color: var(--brand-muted); font-size: 0.9rem; line-height: 1.6; }
        .news-item .news-link { color: var(--brand-dark); font-weight: 700; font-size: 0.85rem; display: inline-flex; align-items: center; gap: 4px; margin-top: 6px; }
        .news-item .news-link:hover { color: var(--brand-signal); }

        .news-thumb { width: 120px; height: 80px; border-radius: 8px; overflow: hidden; flex-shrink: 0; }
        .news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
        .news-item:hover .news-thumb img { transform: scale(1.06); }
        @media (max-width: 768px) { .news-item { flex-direction: column; gap: 10px; } .news-thumb { width: 100%; height: 180px; } }

        .faq-item { border: 1px solid var(--brand-border); border-radius: 12px; background: #fff; margin-bottom: 12px; overflow: hidden; transition: all 0.3s ease; }
        .faq-item:hover { border-color: #B8C4BC; }
        .faq-item[open] { border-left: 4px solid var(--brand-signal); border-radius: 12px; }
        .faq-item summary { padding: 18px 24px; cursor: pointer; font-weight: 700; font-size: 1rem; display: flex; align-items: center; justify-content: space-between; list-style: none; user-select: none; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after { content: '+'; font-size: 1.6rem; font-weight: 400; color: var(--brand-muted); transition: transform 0.3s ease; margin-left: 12px; }
        .faq-item[open] summary::after { transform: rotate(45deg); color: var(--brand-signal); }
        .faq-item .faq-answer { padding: 0 24px 20px 24px; color: var(--brand-muted); font-size: 0.95rem; line-height: 1.75; }

        .form-input { width: 100%; padding: 13px 18px; border-radius: 10px; border: 2px solid var(--brand-border); background: #fff; font-size: 0.95rem; transition: all 0.3s ease; color: var(--brand-dark); }
        .form-input:focus { outline: none; border-color: var(--brand-accent); box-shadow: 0 0 0 4px rgba(200, 240, 75, 0.25); }
        .form-input::placeholder { color: #9AA8A2; }
        .form-label { display: block; font-weight: 700; font-size: 0.9rem; margin-bottom: 6px; color: var(--brand-dark); }

        .footer { background: var(--brand-dark); color: #B8C4BC; }
        .footer a { color: #B8C4BC; transition: all 0.25s ease; }
        .footer a:hover { color: var(--brand-accent); }
        .footer .footer-title { color: #fff; font-weight: 700; font-size: 0.95rem; margin-bottom: 14px; }

        .trend-badge { display: inline-flex; align-items: center; gap: 4px; background: rgba(200, 240, 75, 0.15); color: var(--brand-accent); font-size: 0.78rem; font-weight: 700; padding: 4px 12px; border-radius: 20px; }
        .heat-label { display: inline-flex; align-items: center; gap: 4px; background: rgba(255, 92, 53, 0.12); color: var(--brand-signal); font-size: 0.78rem; font-weight: 700; padding: 4px 12px; border-radius: 20px; }

        .comparison-table { width: 100%; border-collapse: collapse; border-radius: 12px; overflow: hidden; box-shadow: var(--brand-shadow); }
        .comparison-table thead { background: var(--brand-panel); color: #fff; text-align: left; }
        .comparison-table th { padding: 14px 20px; font-weight: 700; font-size: 0.9rem; letter-spacing: 0.02em; }
        .comparison-table td { padding: 13px 20px; border-bottom: 1px solid var(--brand-border); font-size: 0.9rem; }
        .comparison-table tr:hover td { background: #F0F5F0; }
        .comparison-table .highlight-col { background: rgba(200, 240, 75, 0.08); font-weight: 700; color: var(--brand-dark); }
        .comparison-table .highlight-col-top { background: rgba(200, 240, 75, 0.2); font-weight: 800; }

        .security-card { background: #fff; border-radius: 14px; border: 1px solid var(--brand-border); padding: 28px 24px; transition: all 0.3s ease; }
        .security-card:hover { border-color: var(--brand-accent); box-shadow: var(--brand-shadow-hover); transform: translateY(-3px); }
        .security-card .security-icon { font-size: 2rem; color: var(--brand-accent); background: var(--brand-panel); width: 52px; height: 52px; display: flex; align-items: center; justify-content: center; border-radius: 12px; margin-bottom: 14px; }

        .pulse-dot { display: inline-block; width: 8px; height: 8px; background: var(--brand-signal); border-radius: 50%; margin-right: 6px; animation: pulse 1.8s infinite; }
        @keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

        .countdown-unit { display: flex; flex-direction: column; align-items: center; background: rgba(16, 24, 32, 0.75); border: 1px solid rgba(200, 240, 75, 0.3); border-radius: 12px; padding: 12px 16px; min-width: 64px; }
        .countdown-value { font-size: 1.9rem; font-weight: 800; color: var(--brand-accent); font-family: var(--font-mono, monospace); letter-spacing: -1px; }
        .countdown-label { font-size: 0.72rem; color: #A6B8B0; font-weight: 500; text-transform: uppercase; }

        .hero-backdrop { background-image: url('/assets/images/backpic/back-1.webp'); background-size: cover; background-position: center; position: relative; }
        .hero-backdrop::before { content: ''; position: absolute; inset: 0; background: rgba(16, 24, 32, 0.82); z-index: 1; }
        .hero-backdrop::after { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(200, 240, 75, 0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(200, 240, 75, 0.06) 1px, transparent 1px); background-size: 44px 44px; z-index: 2; pointer-events: none; }
        .hero-content { position: relative; z-index: 3; }

        @media (max-width: 768px) {
            :root { --brand-font-h1: 30px; --brand-font-h2: 24px; --brand-font-h3: 19px; --brand-space-section: 48px; }
            .countdown-unit { min-width: 48px; padding: 8px 12px; }
            .countdown-value { font-size: 1.4rem; }
            .comparison-table { font-size: 0.78rem; }
            .comparison-table th, .comparison-table td { padding: 9px 12px; }
        }

/* roulang page: category1 */
:root {
            --brand-dark: #101820;
            --brand-panel: #0F1F1A;
            --brand-accent: #C8F04B;
            --brand-signal: #FF5C35;
            --brand-light: #F4F7F4;
            --brand-muted: #6B7B76;
            --brand-border: #DCE3DE;
            --brand-radius-sm: 8px;
            --brand-radius-md: 14px;
            --brand-radius-lg: 18px;
            --brand-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --brand-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
            --brand-space-section: 88px;
            --brand-space-card: 24px;
            --brand-font-h1: 44px;
            --brand-font-h2: 32px;
            --brand-font-h3: 24px;
            --brand-font-body: 16px;
            --brand-line-height: 1.8;
        }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Inter', system-ui, sans-serif;
            background: var(--brand-light);
            color: var(--brand-dark);
            line-height: var(--brand-line-height);
            font-size: var(--brand-font-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
        button { cursor: pointer; transition: all 0.25s ease; font-family: inherit; }
        input, select, textarea { font-family: inherit; font-size: 1rem; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        .section-space { padding: var(--brand-space-section) 0; }
        .nav-link {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 10px 14px;
            border-radius: 10px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #44504B;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }
        .nav-link:hover { background: #E8EEE9; color: var(--brand-dark); border-color: var(--brand-border); }
        .nav-link.active { background: var(--brand-dark); color: var(--brand-accent); border-color: var(--brand-dark); }
        .nav-link .nav-icon { font-size: 1.3rem; line-height: 1; }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-dark);
            color: #fff;
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-dark);
            transition: all 0.25s ease;
        }
        .btn-primary:hover { background: #1A2A32; border-color: #1A2A32; transform: translateY(-2px); box-shadow: var(--brand-shadow-hover); }
        .btn-primary:focus-visible { outline: 3px solid var(--brand-accent); outline-offset: 3px; }
        .btn-signal {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-signal);
            color: #fff;
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-signal);
            transition: all 0.25s ease;
        }
        .btn-signal:hover { background: #E04A28; border-color: #E04A28; transform: translateY(-2px); box-shadow: var(--brand-shadow-hover); }
        .btn-signal:focus-visible { outline: 3px solid var(--brand-accent); outline-offset: 3px; }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-dark);
            font-weight: 600;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-border);
            transition: all 0.25s ease;
        }
        .btn-outline:hover { background: rgba(0, 0, 0, 0.06); border-color: #B8C4BC; transform: translateY(-2px); }
        .btn-outline:focus-visible { outline: 3px solid var(--brand-accent); outline-offset: 3px; }
        .badge-accent { display: inline-block; background: var(--brand-accent); color: var(--brand-dark); font-size: 0.78rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; letter-spacing: 0.02em; }
        .badge-signal { display: inline-block; background: var(--brand-signal); color: #fff; font-size: 0.78rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; }
        .badge-dark { display: inline-block; background: var(--brand-dark); color: var(--brand-accent); font-size: 0.78rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; }
        .card-base {
            background: #fff;
            border-radius: var(--brand-radius-md);
            box-shadow: var(--brand-shadow);
            border: 1px solid var(--brand-border);
            transition: all 0.3s ease;
        }
        .card-base:hover { box-shadow: var(--brand-shadow-hover); transform: translateY(-3px); border-color: #B8C4BC; }
        .metric-card {
            background: var(--brand-panel);
            border-radius: var(--brand-radius-sm);
            border: 1px solid #1E3830;
            padding: 22px 20px;
            transition: all 0.3s ease;
        }
        .metric-card:hover { border-color: var(--brand-accent); transform: translateY(-2px); }
        .metric-card .metric-value { font-size: 2rem; font-weight: 800; color: var(--brand-accent); letter-spacing: -0.5px; font-family: 'DIN Alternate', 'Roboto Condensed', monospace; }
        .metric-card .metric-label { color: #A6B8B0; font-size: 0.82rem; font-weight: 500; margin-top: 4px; }
        .metric-card .metric-trend { color: var(--brand-signal); font-size: 0.8rem; font-weight: 700; margin-top: 6px; }
        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            padding: 16px 20px;
            background: #fff;
            border-radius: var(--brand-radius-md);
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow);
        }
        .filter-select {
            padding: 10px 16px;
            border-radius: 8px;
            border: 1px solid var(--brand-border);
            background: #fff;
            color: var(--brand-dark);
            font-size: 0.9rem;
            font-weight: 500;
            min-width: 140px;
            outline: none;
            transition: all 0.25s ease;
        }
        .filter-select:focus { border-color: var(--brand-accent); box-shadow: 0 0 0 3px rgba(200, 240, 75, 0.2); }
        .filter-btn {
            padding: 10px 20px;
            border-radius: 8px;
            border: 1px solid var(--brand-border);
            background: #F8FAF8;
            color: var(--brand-dark);
            font-size: 0.85rem;
            font-weight: 600;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .filter-btn:hover { background: #E8EEE9; border-color: #B8C4BC; }
        .filter-btn.active { background: var(--brand-dark); color: var(--brand-accent); border-color: var(--brand-dark); }
        .content-card { display: flex; flex-direction: column; background: #fff; border-radius: var(--brand-radius-md); overflow: hidden; border: 1px solid var(--brand-border); box-shadow: var(--brand-shadow); transition: all 0.3s ease; }
        .content-card:hover { box-shadow: var(--brand-shadow-hover); transform: translateY(-3px); border-color: #B8C4BC; }
        .content-card .card-image-wrap { overflow: hidden; aspect-ratio: 16/9; position: relative; background: #E8EEE9; }
        .content-card .card-image-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
        .content-card:hover .card-image-wrap img { transform: scale(1.05); }
        .content-card .card-image-wrap .img-badge { position: absolute; top: 12px; left: 12px; }
        .content-card .card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
        .content-card .card-date { font-family: 'DIN Alternate', 'Roboto Condensed', monospace; font-size: 0.82rem; font-weight: 700; color: var(--brand-signal); }
        .content-card .card-title { font-size: 1.1rem; font-weight: 700; color: var(--brand-dark); line-height: 1.5; }
        .content-card .card-summary { color: var(--brand-muted); font-size: 0.9rem; line-height: 1.7; flex: 1; }
        .content-card .card-link { display: inline-flex; align-items: center; gap: 4px; color: var(--brand-dark); font-weight: 700; font-size: 0.85rem; }
        .content-card .card-link:hover { color: var(--brand-signal); }
        .deep-section { background: #fff; border-radius: var(--brand-radius-lg); padding: 40px 44px; border: 1px solid var(--brand-border); box-shadow: var(--brand-shadow); }
        .deep-section h2 { font-size: var(--brand-font-h2); font-weight: 700; color: var(--brand-dark); margin-bottom: 20px; line-height: 1.4; }
        .deep-section h3 { font-size: var(--brand-font-h3); font-weight: 700; color: var(--brand-dark); margin: 24px 0 12px; line-height: 1.4; }
        .deep-section p { color: #3A4842; font-size: 1rem; line-height: 1.9; margin-bottom: 16px; }
        .deep-section ul { list-style: none; padding: 0; margin: 16px 0; }
        .deep-section ul li { position: relative; padding-left: 24px; color: #3A4842; font-size: 1rem; line-height: 1.9; margin-bottom: 8px; }
        .deep-section ul li::before { content: ''; position: absolute; left: 0; top: 12px; width: 8px; height: 8px; border-radius: 50%; background: var(--brand-signal); }
        .faq-item { border: 1px solid var(--brand-border); border-radius: var(--brand-radius-sm); background: #fff; margin-bottom: 12px; overflow: hidden; transition: all 0.3s ease; }
        .faq-item:hover { border-color: #B8C4BC; }
        .faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--brand-dark);
            list-style: none;
            transition: all 0.25s ease;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary:hover { background: #F0F5F0; }
        .faq-item summary .faq-icon { font-size: 1.4rem; font-weight: 700; color: var(--brand-signal); flex-shrink: 0; transition: transform 0.3s ease; }
        .faq-item[open] summary .faq-icon { transform: rotate(45deg); }
        .faq-item[open] summary { background: #F0F5F0; border-left: 3px solid var(--brand-signal); }
        .faq-item .faq-answer { padding: 18px 22px 24px; color: #3A4842; font-size: 0.95rem; line-height: 1.85; border-top: 1px solid var(--brand-border); background: #FFFDF8; }
        .footer { background: var(--brand-dark); color: #B8C4BC; }
        .footer-title { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 16px; letter-spacing: 0.02em; }
        .footer a:hover { color: var(--brand-accent); }
        .pagination-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 6px;
            padding: 10px 18px;
            border-radius: 8px;
            border: 1px solid var(--brand-border);
            background: #fff;
            color: var(--brand-dark);
            font-weight: 600;
            font-size: 0.85rem;
            transition: all 0.25s ease;
        }
        .pagination-btn:hover { background: #E8EEE9; border-color: #B8C4BC; }
        .pagination-btn.active { background: var(--brand-dark); color: var(--brand-accent); border-color: var(--brand-dark); }
        .pagination-btn.disabled { opacity: 0.4; pointer-events: none; }

        @media (max-width: 1024px) {
            :root { --brand-font-h1: 34px; --brand-font-h2: 26px; --brand-font-h3: 21px; --brand-space-section: 64px; }
        }
        @media (max-width: 768px) {
            .container { padding: 0 16px; }
            :root { --brand-font-h1: 30px; --brand-font-h2: 24px; --brand-font-h3: 19px; --brand-space-section: 48px; }
            .nav-link { padding: 6px 10px; font-size: 0.72rem; }
            .nav-link .nav-icon { font-size: 1.1rem; }
            .deep-section { padding: 24px 20px; }
            .filter-bar { padding: 12px 14px; flex-direction: column; align-items: stretch; }
            .filter-select { min-width: 100%; }
        }
        @media (max-width: 520px) {
            .container { padding: 0 14px; }
            .deep-section { padding: 20px 16px; border-radius: var(--brand-radius-md); }
            .content-card .card-body { padding: 16px 16px 18px; }
        }

/* roulang page: category2 */
:root {
            --brand-dark: #101820;
            --brand-panel: #0F1F1A;
            --brand-accent: #C8F04B;
            --brand-signal: #FF5C35;
            --brand-light: #F4F7F4;
            --brand-muted: #6B7B76;
            --brand-border: #DCE3DE;
            --brand-radius-sm: 8px;
            --brand-radius-md: 14px;
            --brand-radius-lg: 18px;
            --brand-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --brand-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
            --brand-space-section: 88px;
            --brand-space-card: 24px;
            --brand-font-h1: 44px;
            --brand-font-h2: 32px;
            --brand-font-h3: 24px;
            --brand-font-body: 16px;
            --brand-line-height: 1.8;
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Inter', system-ui, sans-serif;
            --font-mono: 'DIN Alternate', 'Roboto Condensed', 'Inter', monospace;
        }
        @media (max-width: 768px) {
            :root {
                --brand-font-h1: 30px;
                --brand-font-h2: 24px;
                --brand-font-h3: 19px;
                --brand-space-section: 48px;
            }
        }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font-sans); background: var(--brand-light); color: var(--brand-dark); line-height: var(--brand-line-height); font-size: var(--brand-font-body); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
        img { max-width: 100%; height: auto; display: block; }
        a { color: inherit; text-decoration: none; transition: all 0.25s ease; }
        button { cursor: pointer; transition: all 0.25s ease; font-family: inherit; }
        input, select, textarea { font-family: inherit; font-size: 1rem; }
        .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }
        .section-space { padding: var(--brand-space-section) 0; }
        @media (max-width: 768px) { .section-space { padding: 48px 0; } }
        .nav-link { position: relative; display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 10px 14px; border-radius: 10px; font-size: 0.85rem; font-weight: 600; color: #44504B; transition: all 0.25s ease; border: 1px solid transparent; }
        .nav-link:hover { background: #E8EEE9; color: var(--brand-dark); border-color: var(--brand-border); }
        .nav-link.active { background: var(--brand-dark); color: var(--brand-accent); border-color: var(--brand-dark); }
        .nav-link .nav-icon { font-size: 1.3rem; line-height: 1; }
        @media (max-width: 768px) { .nav-link { padding: 6px 10px; font-size: 0.72rem; } .nav-link .nav-icon { font-size: 1.1rem; } }
        .btn-primary { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--brand-dark); color: #fff; font-weight: 700; padding: 12px 24px; border-radius: 10px; font-size: 0.95rem; border: 2px solid var(--brand-dark); transition: all 0.25s ease; }
        .btn-primary:hover { background: #1A2A32; border-color: #1A2A32; transform: translateY(-2px); box-shadow: var(--brand-shadow-hover); }
        .btn-primary:focus-visible { outline: 3px solid var(--brand-accent); outline-offset: 3px; }
        .btn-signal { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--brand-signal); color: #fff; font-weight: 700; padding: 12px 24px; border-radius: 10px; font-size: 0.95rem; border: 2px solid var(--brand-signal); transition: all 0.25s ease; }
        .btn-signal:hover { background: #E04A28; border-color: #E04A28; transform: translateY(-2px); box-shadow: var(--brand-shadow-hover); }
        .btn-signal:focus-visible { outline: 3px solid var(--brand-accent); outline-offset: 3px; }
        .btn-outline { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: transparent; color: var(--brand-dark); font-weight: 600; padding: 12px 24px; border-radius: 10px; font-size: 0.95rem; border: 2px solid var(--brand-border); transition: all 0.25s ease; }
        .btn-outline:hover { background: rgba(0, 0, 0, 0.06); border-color: #B8C4BC; transform: translateY(-2px); }
        .btn-outline:focus-visible { outline: 3px solid var(--brand-accent); outline-offset: 3px; }
        .badge-accent { display: inline-block; background: var(--brand-accent); color: var(--brand-dark); font-size: 0.78rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; letter-spacing: 0.02em; }
        .badge-signal { display: inline-block; background: var(--brand-signal); color: #fff; font-size: 0.78rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; }
        .badge-dark { display: inline-block; background: var(--brand-dark); color: var(--brand-accent); font-size: 0.78rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; }
        .card-base { background: #fff; border-radius: var(--brand-radius-md); box-shadow: var(--brand-shadow); border: 1px solid var(--brand-border); transition: all 0.3s ease; }
        .card-base:hover { box-shadow: var(--brand-shadow-hover); transform: translateY(-3px); border-color: #B8C4BC; }
        .metric-card { background: var(--brand-panel); border-radius: var(--brand-radius-sm); border: 1px solid #1E3830; padding: 22px 20px; transition: all 0.3s ease; }
        .metric-card:hover { border-color: var(--brand-accent); transform: translateY(-2px); }
        .metric-card .metric-value { font-size: 2rem; font-weight: 800; color: var(--brand-accent); letter-spacing: -0.5px; font-family: var(--font-mono); }
        .metric-card .metric-label { color: #A6B8B0; font-size: 0.82rem; font-weight: 500; margin-top: 4px; }
        .metric-card .metric-trend { color: var(--brand-signal); font-size: 0.8rem; font-weight: 700; margin-top: 6px; }
        .filter-toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; padding: 18px 0; border-bottom: 1px solid var(--brand-border); }
        .filter-btn { padding: 8px 18px; border-radius: 8px; border: 1px solid var(--brand-border); background: #fff; color: var(--brand-muted); font-weight: 600; font-size: 0.85rem; transition: all 0.25s ease; }
        .filter-btn:hover { border-color: var(--brand-dark); color: var(--brand-dark); }
        .filter-btn.active { background: var(--brand-dark); color: var(--brand-accent); border-color: var(--brand-dark); }
        .team-card { background: #fff; border-radius: var(--brand-radius-md); border: 1px solid var(--brand-border); overflow: hidden; transition: all 0.3s ease; box-shadow: var(--brand-shadow); }
        .team-card:hover { box-shadow: var(--brand-shadow-hover); transform: translateY(-4px); border-color: #B8C4BC; }
        .team-card .team-card-image { position: relative; height: 180px; overflow: hidden; }
        .team-card .team-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
        .team-card:hover .team-card-image img { transform: scale(1.05); }
        .team-card .team-card-tag { position: absolute; top: 12px; left: 12px; }
        .team-card .team-card-body { padding: 20px; }
        .team-card .team-card-title { font-weight: 700; font-size: 1.1rem; margin-bottom: 8px; }
        .team-card .team-card-summary { color: var(--brand-muted); font-size: 0.9rem; line-height: 1.6; margin-bottom: 14px; }
        .team-card .team-card-link { color: var(--brand-dark); font-weight: 700; font-size: 0.85rem; display: inline-flex; align-items: center; gap: 4px; }
        .team-card .team-card-link:hover { color: var(--brand-signal); }
        .faq-item { border-bottom: 1px solid var(--brand-border); }
        .faq-item summary { list-style: none; cursor: pointer; padding: 18px 0; font-weight: 700; font-size: 1rem; display: flex; justify-content: space-between; align-items: center; gap: 12px; }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary:focus-visible { outline: 3px solid var(--brand-accent); outline-offset: 2px; border-radius: 4px; }
        .faq-item summary .faq-icon { font-size: 1.2rem; transition: transform 0.3s ease; color: var(--brand-signal); }
        .faq-item[open] summary .faq-icon { transform: rotate(45deg); }
        .faq-item .faq-content { padding: 0 0 18px 0; color: var(--brand-muted); line-height: 1.75; font-size: 0.95rem; }
        .section-title { font-size: var(--brand-font-h2); font-weight: 800; line-height: 1.25; color: var(--brand-dark); margin-bottom: 12px; letter-spacing: -0.02em; }
        .section-subtitle { font-size: 1.05rem; color: var(--brand-muted); max-width: 680px; line-height: 1.7; }
        .footer { background: var(--brand-dark); color: #A6B8B0; }
        .footer .footer-title { color: #fff; font-weight: 700; font-size: 0.95rem; margin-bottom: 16px; }
        .footer a { color: #A6B8B0; transition: color 0.25s ease; }
        .footer a:hover { color: var(--brand-accent); }
        .form-input { width: 100%; padding: 13px 16px; border-radius: 10px; border: 2px solid var(--brand-border); background: #fff; color: var(--brand-dark); transition: all 0.25s ease; font-size: 0.95rem; }
        .form-input:focus { outline: none; border-color: var(--brand-accent); box-shadow: 0 0 0 3px rgba(200, 240, 75, 0.25); }
        .form-input::placeholder { color: #9AA6A0; }
        .hero-overlay { background: linear-gradient(to bottom, rgba(16,24,32,0.65), rgba(16,24,32,0.85)); }
        .hero-grid-overlay { background-image: linear-gradient(rgba(200,240,75,0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(200,240,75,0.06) 1px, transparent 1px); background-size: 32px 32px; }
        .process-step { display: flex; gap: 16px; align-items: flex-start; }
        .process-step .step-num { flex-shrink: 0; width: 36px; height: 36px; border-radius: 50%; background: var(--brand-dark); color: var(--brand-accent); font-weight: 800; display: flex; align-items: center; justify-content: center; font-size: 1rem; }
        .process-step .step-content { flex: 1; }
        .process-step .step-title { font-weight: 700; font-size: 1.02rem; margin-bottom: 4px; }
        .process-step .step-desc { color: var(--brand-muted); font-size: 0.9rem; line-height: 1.6; }
        .deep-panel { background: #fff; border-radius: var(--brand-radius-lg); padding: 32px; border: 1px solid var(--brand-border); }
        .deep-panel h3 { font-size: var(--brand-font-h3); font-weight: 800; margin-bottom: 16px; }
        .deep-panel p { color: var(--brand-muted); line-height: 1.8; margin-bottom: 12px; }
        .comparison-bar { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
        .comparison-bar .bar-label { min-width: 80px; font-weight: 700; font-size: 0.85rem; }
        .comparison-bar .bar-track { flex: 1; height: 12px; background: #E8EEE9; border-radius: 6px; overflow: hidden; }
        .comparison-bar .bar-fill { height: 100%; border-radius: 6px; transition: width 0.6s ease; }
        .comparison-bar .bar-value { min-width: 48px; font-weight: 700; font-size: 0.85rem; font-family: var(--font-mono); text-align: right; }
        @media (max-width: 768px) {
            .deep-panel { padding: 20px; }
            .process-step { flex-direction: column; gap: 10px; }
            .comparison-bar { flex-wrap: wrap; gap: 6px; }
            .comparison-bar .bar-label { min-width: 60px; font-size: 0.78rem; }
            .comparison-bar .bar-value { min-width: 40px; font-size: 0.78rem; }
        }
        @media (max-width: 520px) {
            .filter-toolbar { flex-direction: column; align-items: stretch; }
            .filter-btn { text-align: center; }
        }

/* roulang page: category4 */
:root {
            --brand-dark: #101820;
            --brand-panel: #0F1F1A;
            --brand-accent: #C8F04B;
            --brand-signal: #FF5C35;
            --brand-light: #F4F7F4;
            --brand-muted: #6B7B76;
            --brand-border: #DCE3DE;
            --brand-radius-sm: 8px;
            --brand-radius-md: 14px;
            --brand-radius-lg: 18px;
            --brand-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --brand-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
            --brand-space-section: 88px;
            --brand-space-card: 24px;
            --brand-font-h1: 44px;
            --brand-font-h2: 32px;
            --brand-font-h3: 24px;
            --brand-font-body: 16px;
            --brand-line-height: 1.8;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Inter', system-ui, -apple-system, sans-serif;
            background: var(--brand-light);
            color: var(--brand-dark);
            line-height: var(--brand-line-height);
            font-size: var(--brand-font-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }

        button {
            cursor: pointer;
            transition: all 0.25s ease;
            font-family: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
        }

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

        .section-space {
            padding: var(--brand-space-section) 0;
        }

        .nav-link {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 10px 14px;
            border-radius: 10px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #44504B;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }

        .nav-link:hover {
            background: #E8EEE9;
            color: var(--brand-dark);
            border-color: var(--brand-border);
        }

        .nav-link.active {
            background: var(--brand-dark);
            color: var(--brand-accent);
            border-color: var(--brand-dark);
        }

        .nav-link .nav-icon {
            font-size: 1.3rem;
            line-height: 1;
        }

        .nav-link.active .nav-icon {
            color: var(--brand-accent);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-dark);
            color: #fff;
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-dark);
            transition: all 0.25s ease;
        }

        .btn-primary:hover {
            background: #1A2A32;
            border-color: #1A2A32;
            transform: translateY(-2px);
            box-shadow: var(--brand-shadow-hover);
        }

        .btn-primary:focus-visible {
            outline: 3px solid var(--brand-accent);
            outline-offset: 3px;
        }

        .btn-signal {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-signal);
            color: #fff;
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-signal);
            transition: all 0.25s ease;
        }

        .btn-signal:hover {
            background: #E04A28;
            border-color: #E04A28;
            transform: translateY(-2px);
            box-shadow: var(--brand-shadow-hover);
        }

        .btn-signal:focus-visible {
            outline: 3px solid var(--brand-accent);
            outline-offset: 3px;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-dark);
            font-weight: 600;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-border);
            transition: all 0.25s ease;
        }

        .btn-outline:hover {
            background: rgba(0, 0, 0, 0.06);
            border-color: #B8C4BC;
            transform: translateY(-2px);
        }

        .btn-outline:focus-visible {
            outline: 3px solid var(--brand-accent);
            outline-offset: 3px;
        }

        .badge-accent {
            display: inline-block;
            background: var(--brand-accent);
            color: var(--brand-dark);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }

        .badge-signal {
            display: inline-block;
            background: var(--brand-signal);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
        }

        .badge-dark {
            display: inline-block;
            background: var(--brand-dark);
            color: var(--brand-accent);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
        }

        .card-base {
            background: #fff;
            border-radius: var(--brand-radius-md);
            box-shadow: var(--brand-shadow);
            border: 1px solid var(--brand-border);
            transition: all 0.3s ease;
        }

        .card-base:hover {
            box-shadow: var(--brand-shadow-hover);
            transform: translateY(-3px);
            border-color: #B8C4BC;
        }

        .metric-card {
            background: var(--brand-panel);
            border-radius: var(--brand-radius-sm);
            border: 1px solid #1E3830;
            padding: 22px 20px;
            transition: all 0.3s ease;
        }

        .metric-card:hover {
            border-color: var(--brand-accent);
            transform: translateY(-2px);
        }

        .metric-card .metric-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--brand-accent);
            letter-spacing: -0.5px;
            font-family: 'DIN Alternate', 'Roboto Condensed', monospace;
        }

        .metric-card .metric-label {
            color: #A6B8B0;
            font-size: 0.82rem;
            font-weight: 500;
            margin-top: 4px;
        }

        .metric-card .metric-trend {
            color: var(--brand-signal);
            font-size: 0.8rem;
            font-weight: 700;
            margin-top: 6px;
        }

        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            justify-content: space-between;
            padding: 16px 0;
            border-top: 1px solid var(--brand-border);
            border-bottom: 1px solid var(--brand-border);
            margin-bottom: 28px;
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #44504B;
            background: #fff;
            border: 1px solid var(--brand-border);
            transition: all 0.2s ease;
            cursor: pointer;
        }

        .filter-chip:hover {
            border-color: var(--brand-dark);
            color: var(--brand-dark);
        }

        .filter-chip.active {
            background: var(--brand-dark);
            color: var(--brand-accent);
            border-color: var(--brand-dark);
        }

        .sort-select {
            padding: 8px 16px;
            border-radius: 8px;
            border: 1px solid var(--brand-border);
            font-size: 0.85rem;
            font-weight: 500;
            color: #44504B;
            background: #fff;
            cursor: pointer;
            transition: border-color 0.2s ease;
        }

        .sort-select:focus {
            outline: 2px solid var(--brand-accent);
            border-color: var(--brand-dark);
        }

        .training-card {
            background: #fff;
            border-radius: var(--brand-radius-md);
            border: 1px solid var(--brand-border);
            overflow: hidden;
            transition: all 0.3s ease;
            box-shadow: var(--brand-shadow);
            display: flex;
            flex-direction: column;
        }

        .training-card:hover {
            box-shadow: var(--brand-shadow-hover);
            transform: translateY(-4px);
            border-color: #A8B8AE;
        }

        .training-card .card-img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

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

        .training-card .card-body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .training-card .card-tag {
            display: inline-block;
            background: #E8EEE9;
            color: #44504B;
            font-size: 0.72rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }

        .training-card .card-title {
            font-size: 1.12rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .training-card .card-excerpt {
            color: var(--brand-muted);
            font-size: 0.9rem;
            line-height: 1.7;
            flex: 1;
            margin-bottom: 16px;
        }

        .training-card .card-link {
            font-weight: 700;
            font-size: 0.88rem;
            color: var(--brand-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .training-card .card-link:hover {
            color: var(--brand-signal);
        }

        .timeline-item {
            position: relative;
            padding-left: 32px;
            padding-bottom: 36px;
            border-left: 2px solid var(--brand-border);
        }

        .timeline-item:last-child {
            border-left-color: transparent;
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -9px;
            top: 0;
            width: 16px;
            height: 16px;
            background: var(--brand-accent);
            border-radius: 50%;
            border: 3px solid var(--brand-dark);
            z-index: 1;
        }

        .timeline-item .step-num {
            font-family: 'DIN Alternate', monospace;
            font-weight: 800;
            color: var(--brand-signal);
            font-size: 0.85rem;
            letter-spacing: 0.05em;
            display: block;
            margin-bottom: 4px;
        }

        .timeline-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--brand-dark);
            margin-bottom: 6px;
        }

        .timeline-item p {
            font-size: 0.9rem;
            color: var(--brand-muted);
            line-height: 1.7;
        }

        .faq-item {
            border-bottom: 1px solid var(--brand-border);
            transition: all 0.3s ease;
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 4px;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--brand-dark);
            transition: color 0.2s ease;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }

        .faq-question:hover {
            color: var(--brand-signal);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: #E8EEE9;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1rem;
            transition: transform 0.3s ease;
            color: var(--brand-dark);
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            color: var(--brand-muted);
            font-size: 0.92rem;
            line-height: 1.75;
            padding-left: 4px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            border-left: 3px solid var(--brand-signal);
            padding-left: 16px;
            padding-bottom: 20px;
        }

        .footer {
            background: var(--brand-dark);
            color: #fff;
        }

        .footer a {
            color: #9AA8A2;
            transition: color 0.25s ease;
        }

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

        .footer-title {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .pagination {
            display: flex;
            gap: 8px;
            align-items: center;
            justify-content: center;
            margin-top: 36px;
        }

        .pagination a {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            border: 1px solid var(--brand-border);
            font-weight: 600;
            font-size: 0.9rem;
            color: #44504B;
            background: #fff;
            transition: all 0.2s ease;
        }

        .pagination a:hover {
            border-color: var(--brand-dark);
            color: var(--brand-dark);
        }

        .pagination a.active {
            background: var(--brand-dark);
            color: var(--brand-accent);
            border-color: var(--brand-dark);
        }

        .pagination a.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        @media (max-width: 1024px) {
            :root {
                --brand-font-h1: 36px;
                --brand-font-h2: 28px;
                --brand-font-h3: 22px;
                --brand-space-section: 64px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --brand-font-h1: 30px;
                --brand-font-h2: 24px;
                --brand-font-h3: 19px;
                --brand-space-section: 48px;
            }
            .container {
                padding: 0 16px;
            }
            .nav-link {
                padding: 6px 10px;
                font-size: 0.72rem;
            }
            .nav-link .nav-icon {
                font-size: 1.1rem;
            }
            .metric-card .metric-value {
                font-size: 1.5rem;
            }
            .training-card .card-img {
                height: 180px;
            }
            .filter-bar {
                flex-direction: column;
                align-items: stretch;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }
            .btn-primary,
            .btn-signal,
            .btn-outline {
                padding: 10px 16px;
                font-size: 0.85rem;
            }
            .training-card .card-img {
                height: 160px;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 16px 2px;
            }
        }

/* roulang page: category3 */
:root {
            --brand-dark: #101820;
            --brand-panel: #0F1F1A;
            --brand-accent: #C8F04B;
            --brand-signal: #FF5C35;
            --brand-light: #F4F7F4;
            --brand-muted: #6B7B76;
            --brand-border: #DCE3DE;
            --brand-radius-sm: 8px;
            --brand-radius-md: 14px;
            --brand-radius-lg: 18px;
            --brand-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --brand-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
            --brand-space-section: 88px;
            --brand-space-card: 24px;
            --brand-font-h1: 44px;
            --brand-font-h2: 32px;
            --brand-font-h3: 24px;
            --brand-font-body: 16px;
            --brand-line-height: 1.8;
            --font-sans: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Inter', system-ui, sans-serif;
            --font-mono: 'DIN Alternate', 'Roboto Condensed', monospace;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            background: var(--brand-light);
            color: var(--brand-dark);
            line-height: var(--brand-line-height);
            font-size: var(--brand-font-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }
        button {
            cursor: pointer;
            transition: all 0.25s ease;
            font-family: inherit;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-space {
            padding: var(--brand-space-section) 0;
        }
        .nav-link {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 10px 14px;
            border-radius: 10px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #44504B;
            transition: all 0.25s ease;
            border: 1px solid transparent;
            white-space: nowrap;
        }
        .nav-link:hover {
            background: #E8EEE9;
            color: var(--brand-dark);
            border-color: var(--brand-border);
        }
        .nav-link.active {
            background: var(--brand-dark);
            color: var(--brand-accent);
            border-color: var(--brand-dark);
        }
        .nav-link .nav-icon {
            font-size: 1.3rem;
            line-height: 1;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-dark);
            color: #fff;
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-dark);
            transition: all 0.25s ease;
        }
        .btn-primary:hover {
            background: #1A2A32;
            border-color: #1A2A32;
            transform: translateY(-2px);
            box-shadow: var(--brand-shadow-hover);
        }
        .btn-primary:focus-visible {
            outline: 3px solid var(--brand-accent);
            outline-offset: 3px;
        }
        .btn-signal {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-signal);
            color: #fff;
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-signal);
            transition: all 0.25s ease;
        }
        .btn-signal:hover {
            background: #E04A28;
            border-color: #E04A28;
            transform: translateY(-2px);
            box-shadow: var(--brand-shadow-hover);
        }
        .btn-signal:focus-visible {
            outline: 3px solid var(--brand-accent);
            outline-offset: 3px;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-dark);
            font-weight: 600;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-border);
            transition: all 0.25s ease;
        }
        .btn-outline:hover {
            background: rgba(0, 0, 0, 0.06);
            border-color: #B8C4BC;
            transform: translateY(-2px);
        }
        .btn-outline:focus-visible {
            outline: 3px solid var(--brand-accent);
            outline-offset: 3px;
        }
        .badge-accent {
            display: inline-block;
            background: var(--brand-accent);
            color: var(--brand-dark);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }
        .badge-signal {
            display: inline-block;
            background: var(--brand-signal);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
        }
        .badge-dark {
            display: inline-block;
            background: var(--brand-dark);
            color: var(--brand-accent);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
        }
        .card-base {
            background: #fff;
            border-radius: var(--brand-radius-md);
            box-shadow: var(--brand-shadow);
            border: 1px solid var(--brand-border);
            transition: all 0.3s ease;
        }
        .card-base:hover {
            box-shadow: var(--brand-shadow-hover);
            transform: translateY(-3px);
            border-color: #B8C4BC;
        }
        .metric-card {
            background: var(--brand-panel);
            border-radius: var(--brand-radius-sm);
            border: 1px solid #1E3830;
            padding: 22px 20px;
            transition: all 0.3s ease;
        }
        .metric-card:hover {
            border-color: var(--brand-accent);
            transform: translateY(-2px);
        }
        .metric-card .metric-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--brand-accent);
            letter-spacing: -0.5px;
            font-family: var(--font-mono);
        }
        .metric-card .metric-label {
            color: #A6B8B0;
            font-size: 0.82rem;
            font-weight: 500;
            margin-top: 4px;
        }
        .metric-card .metric-trend {
            color: var(--brand-signal);
            font-size: 0.8rem;
            font-weight: 700;
            margin-top: 6px;
        }
        .footer-title {
            color: #fff;
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 16px;
        }
        .footer a {
            color: #9CA8A2;
            transition: color 0.25s ease;
        }
        .footer a:hover {
            color: var(--brand-accent);
        }
        .filter-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            color: #44504B;
            border: 1px solid var(--brand-border);
            background: #fff;
            transition: all 0.25s ease;
            white-space: nowrap;
        }
        .filter-btn:hover {
            background: #E8EEE9;
            border-color: #B8C4BC;
        }
        .filter-btn.active {
            background: var(--brand-dark);
            color: var(--brand-accent);
            border-color: var(--brand-dark);
        }
        .sort-select {
            padding: 8px 14px;
            border-radius: 8px;
            border: 1px solid var(--brand-border);
            background: #fff;
            font-size: 0.82rem;
            font-weight: 600;
            color: #44504B;
            outline: none;
            transition: all 0.25s ease;
        }
        .sort-select:focus {
            border-color: var(--brand-accent);
            box-shadow: 0 0 0 3px rgba(200, 240, 75, 0.25);
        }
        .faq-item {
            border-bottom: 1px solid var(--brand-border);
            transition: all 0.3s ease;
        }
        .faq-item summary {
            padding: 18px 20px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            color: var(--brand-dark);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            list-style: none;
            transition: all 0.25s ease;
            border-left: 4px solid transparent;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary:hover {
            background: #F0F5F0;
            border-left-color: var(--brand-accent);
        }
        .faq-item summary .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 6px;
            background: var(--brand-dark);
            color: var(--brand-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.1rem;
            transition: transform 0.3s ease;
        }
        .faq-item[open] summary .faq-icon {
            transform: rotate(45deg);
        }
        .faq-item .faq-body {
            padding: 0 20px 20px 20px;
            color: var(--brand-muted);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        .faq-item[open] summary {
            border-left-color: var(--brand-signal);
            background: #FAFCFA;
        }
        .form-input {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--brand-border);
            background: #fff;
            font-size: 0.95rem;
            color: var(--brand-dark);
            outline: none;
            transition: all 0.25s ease;
        }
        .form-input:focus {
            border-color: var(--brand-accent);
            box-shadow: 0 0 0 3px rgba(200, 240, 75, 0.2);
        }
        .form-label {
            display: block;
            font-weight: 600;
            font-size: 0.85rem;
            margin-bottom: 6px;
            color: #D5DDD8;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(16,24,32,0.88) 0%, rgba(16,24,32,0.72) 40%, rgba(15,31,26,0.92) 100%);
        }
        .hero-grid-lines {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(200,240,75,0.06) 1px, transparent 1px), linear-gradient(90deg, rgba(200,240,75,0.06) 1px, transparent 1px);
            background-size: 48px 48px;
            pointer-events: none;
        }
        .group-progress-bar {
            height: 8px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
            overflow: hidden;
        }
        .group-progress-bar .progress-fill {
            height: 100%;
            background: var(--brand-accent);
            border-radius: 4px;
            transition: width 0.5s ease;
        }
        .compare-table th {
            background: var(--brand-panel);
            color: var(--brand-accent);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 14px 16px;
            text-align: left;
            border-bottom: 2px solid #1E3830;
        }
        .compare-table td {
            padding: 14px 16px;
            font-size: 0.9rem;
            border-bottom: 1px solid var(--brand-border);
            color: #33413A;
        }
        .compare-table tr:last-child td {
            border-bottom: none;
        }
        .compare-highlight {
            color: var(--brand-signal);
            font-weight: 700;
        }
        .compare-accent {
            color: #5A8F08;
            font-weight: 700;
        }
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }
            .nav-link {
                padding: 6px 10px;
                font-size: 0.72rem;
            }
            .nav-link .nav-icon {
                font-size: 1.1rem;
            }
            :root {
                --brand-font-h1: 34px;
                --brand-font-h2: 26px;
                --brand-font-h3: 20px;
                --brand-space-section: 56px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
            :root {
                --brand-font-h1: 28px;
                --brand-font-h2: 22px;
                --brand-font-h3: 18px;
                --brand-space-section: 40px;
            }
            .section-space {
                padding: 40px 0;
            }
            .metric-card .metric-value {
                font-size: 1.5rem;
            }
            .nav-link {
                padding: 4px 8px;
                font-size: 0.68rem;
            }
            .nav-link .nav-icon {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .hero-content {
                gap: 24px;
            }
            .compare-table {
                font-size: 0.78rem;
            }
            .compare-table th,
            .compare-table td {
                padding: 10px 10px;
            }
        }

/* roulang page: category5 */
:root {
            --brand-dark: #101820;
            --brand-panel: #0F1F1A;
            --brand-accent: #C8F04B;
            --brand-signal: #FF5C35;
            --brand-light: #F4F7F4;
            --brand-muted: #6B7B76;
            --brand-border: #DCE3DE;
            --brand-radius-sm: 8px;
            --brand-radius-md: 14px;
            --brand-radius-lg: 18px;
            --brand-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
            --brand-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
            --brand-space-section: 88px;
            --brand-space-card: 24px;
            --brand-font-h1: 44px;
            --brand-font-h2: 32px;
            --brand-font-h3: 24px;
            --brand-font-body: 16px;
            --brand-line-height: 1.8;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Inter', system-ui, sans-serif;
            background: var(--brand-light);
            color: var(--brand-dark);
            line-height: var(--brand-line-height);
            font-size: var(--brand-font-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.25s ease;
        }

        button {
            cursor: pointer;
            transition: all 0.25s ease;
            font-family: inherit;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 1rem;
        }

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

        .section-space {
            padding: var(--brand-space-section) 0;
        }

        .nav-link {
            position: relative;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 4px;
            padding: 10px 14px;
            border-radius: 10px;
            font-size: 0.85rem;
            font-weight: 600;
            color: #44504B;
            transition: all 0.25s ease;
            border: 1px solid transparent;
        }

        .nav-link:hover {
            background: #E8EEE9;
            color: var(--brand-dark);
            border-color: var(--brand-border);
        }

        .nav-link.active {
            background: var(--brand-dark);
            color: var(--brand-accent);
            border-color: var(--brand-dark);
        }

        .nav-link .nav-icon {
            font-size: 1.3rem;
            line-height: 1;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-dark);
            color: #fff;
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-dark);
            transition: all 0.25s ease;
        }

        .btn-primary:hover {
            background: #1A2A32;
            border-color: #1A2A32;
            transform: translateY(-2px);
            box-shadow: var(--brand-shadow-hover);
        }

        .btn-primary:focus-visible,
        .btn-signal:focus-visible,
        .btn-outline:focus-visible {
            outline: 3px solid var(--brand-accent);
            outline-offset: 3px;
        }

        .btn-signal {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--brand-signal);
            color: #fff;
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-signal);
            transition: all 0.25s ease;
        }

        .btn-signal:hover {
            background: #E04A28;
            border-color: #E04A28;
            transform: translateY(-2px);
            box-shadow: var(--brand-shadow-hover);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--brand-dark);
            font-weight: 600;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 0.95rem;
            border: 2px solid var(--brand-border);
            transition: all 0.25s ease;
        }

        .btn-outline:hover {
            background: rgba(0, 0, 0, 0.06);
            border-color: #B8C4BC;
            transform: translateY(-2px);
        }

        .badge-accent {
            display: inline-block;
            background: var(--brand-accent);
            color: var(--brand-dark);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
            letter-spacing: 0.02em;
        }

        .badge-signal {
            display: inline-block;
            background: var(--brand-signal);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
        }

        .badge-dark {
            display: inline-block;
            background: var(--brand-dark);
            color: var(--brand-accent);
            font-size: 0.78rem;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 20px;
        }

        .card-base {
            background: #fff;
            border-radius: var(--brand-radius-md);
            box-shadow: var(--brand-shadow);
            border: 1px solid var(--brand-border);
            transition: all 0.3s ease;
        }

        .card-base:hover {
            box-shadow: var(--brand-shadow-hover);
            transform: translateY(-3px);
            border-color: #B8C4BC;
        }

        .metric-card {
            background: var(--brand-panel);
            border-radius: var(--brand-radius-sm);
            border: 1px solid #1E3830;
            padding: 22px 20px;
            transition: all 0.3s ease;
        }

        .metric-card:hover {
            border-color: var(--brand-accent);
            transform: translateY(-2px);
        }

        .metric-card .metric-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--brand-accent);
            letter-spacing: -0.5px;
            font-family: 'DIN Alternate', 'Roboto Condensed', monospace;
        }

        .metric-card .metric-label {
            color: #A6B8B0;
            font-size: 0.82rem;
            font-weight: 500;
            margin-top: 4px;
        }

        .metric-card .metric-trend {
            color: var(--brand-signal);
            font-size: 0.8rem;
            font-weight: 700;
            margin-top: 6px;
        }

        .content-card {
            background: #fff;
            border-radius: var(--brand-radius-md);
            box-shadow: var(--brand-shadow);
            border: 1px solid var(--brand-border);
            overflow: hidden;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .content-card:hover {
            box-shadow: var(--brand-shadow-hover);
            transform: translateY(-4px);
            border-color: #B8C4BC;
        }

        .content-card .card-img-wrap {
            overflow: hidden;
            aspect-ratio: 16/9;
            background: #E8EEE9;
        }

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

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

        .content-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .content-card .card-tag {
            font-size: 0.72rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            color: var(--brand-signal);
            margin-bottom: 8px;
        }

        .content-card .card-title {
            font-size: 1.1rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            color: var(--brand-dark);
        }

        .content-card .card-summary {
            font-size: 0.88rem;
            color: var(--brand-muted);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 14px;
        }

        .content-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--brand-dark);
            transition: color 0.2s ease;
        }

        .content-card .card-link:hover {
            color: var(--brand-signal);
        }

        .filter-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            padding: 18px 20px;
            background: #fff;
            border-radius: var(--brand-radius-md);
            border: 1px solid var(--brand-border);
            box-shadow: var(--brand-shadow);
        }

        .filter-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 16px;
            border-radius: 24px;
            font-size: 0.82rem;
            font-weight: 600;
            border: 1px solid var(--brand-border);
            background: #fff;
            color: var(--brand-muted);
            transition: all 0.25s ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .filter-chip:hover {
            border-color: var(--brand-dark);
            color: var(--brand-dark);
            background: #F8FAF8;
        }

        .filter-chip.active {
            background: var(--brand-dark);
            color: var(--brand-accent);
            border-color: var(--brand-dark);
        }

        .filter-select {
            padding: 8px 14px;
            border-radius: 8px;
            border: 1px solid var(--brand-border);
            background: #fff;
            color: var(--brand-dark);
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.25s ease;
        }

        .filter-select:hover,
        .filter-select:focus {
            border-color: var(--brand-dark);
            outline: none;
        }

        .faq-item {
            background: #fff;
            border-radius: var(--brand-radius-md);
            border: 1px solid var(--brand-border);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-item:hover {
            border-color: #B8C4BC;
        }

        .faq-item.active {
            border-left: 3px solid var(--brand-signal);
            box-shadow: var(--brand-shadow);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            background: none;
            border: none;
            text-align: left;
            font-size: 1rem;
            font-weight: 700;
            color: var(--brand-dark);
            cursor: pointer;
            transition: background 0.2s ease;
        }

        .faq-question:hover {
            background: #F8FAF8;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--brand-light);
            color: var(--brand-dark);
            font-size: 1.2rem;
            font-weight: 700;
            transition: all 0.3s ease;
        }

        .faq-item.active .faq-question .faq-icon {
            background: var(--brand-signal);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 22px;
            color: var(--brand-muted);
            font-size: 0.92rem;
            line-height: 1.75;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 22px 20px;
        }

        .cta-panel {
            background: var(--brand-panel);
            border-radius: var(--brand-radius-lg);
            padding: 48px 40px;
            position: relative;
            overflow: hidden;
        }

        .cta-panel::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 240px;
            height: 240px;
            border-radius: 50%;
            background: rgba(200, 240, 75, 0.08);
            pointer-events: none;
        }

        .cta-panel::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 92, 53, 0.06);
            pointer-events: none;
        }

        .form-input {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid #3A4A43;
            background: #fff;
            color: var(--brand-dark);
            font-size: 0.95rem;
            transition: all 0.25s ease;
        }

        .form-input:focus {
            outline: none;
            border-color: var(--brand-accent);
            box-shadow: 0 0 0 3px rgba(200, 240, 75, 0.25);
        }

        .form-label {
            display: block;
            font-size: 0.85rem;
            font-weight: 600;
            color: #A6B8B0;
            margin-bottom: 6px;
        }

        .footer {
            background: var(--brand-dark);
            color: #A6B8B0;
        }

        .footer a {
            color: #A6B8B0;
            transition: color 0.25s ease;
        }

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

        .footer-title {
            font-size: 0.9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .hero-industry {
            position: relative;
            background: var(--brand-panel);
            overflow: hidden;
        }

        .hero-industry .hero-bg-img {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.35;
        }

        .hero-industry .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(16, 24, 32, 0.92) 0%, rgba(15, 31, 26, 0.78) 100%);
        }

        .hero-industry .hero-content {
            position: relative;
            z-index: 2;
            padding: 80px 0 64px;
        }

        .deep-section {
            background: #fff;
            border-radius: var(--brand-radius-lg);
            border: 1px solid var(--brand-border);
            padding: 40px 36px;
            box-shadow: var(--brand-shadow);
        }

        .deep-section h2 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--brand-dark);
        }

        .deep-section p {
            color: #3A4A43;
            font-size: 0.95rem;
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .data-strip {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 16px;
        }

        @media (max-width: 1024px) {
            :root {
                --brand-space-section: 64px;
                --brand-font-h1: 36px;
                --brand-font-h2: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --brand-space-section: 48px;
                --brand-font-h1: 28px;
                --brand-font-h2: 24px;
            }

            .container {
                padding: 0 16px;
            }

            .nav-link {
                padding: 6px 8px;
                font-size: 0.7rem;
            }

            .nav-link .nav-icon {
                font-size: 1.1rem;
            }

            .hero-industry .hero-content {
                padding: 48px 0 40px;
            }

            .cta-panel {
                padding: 32px 20px;
                border-radius: var(--brand-radius-md);
            }

            .deep-section {
                padding: 28px 20px;
                border-radius: var(--brand-radius-md);
            }

            .filter-bar {
                padding: 14px;
                flex-direction: column;
                align-items: stretch;
            }

            .metric-card .metric-value {
                font-size: 1.5rem;
            }
        }

        @media (max-width: 520px) {
            .metric-card {
                padding: 16px 14px;
            }

            .metric-card .metric-value {
                font-size: 1.3rem;
            }

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