:root {
            --primary: #E84B2A;
            --primary-dark: #C93D1E;
            --secondary: #DBA028;
            --gradient: linear-gradient(135deg, #E84B2A 0%, #DBA028 100%);
            --bg: #ffffff;
            --bg-off: #f6f7f9;
            --text: #111827;
            --text-2: #6b7280;
            --text-3: #9ca3af;
            --border: #e5e7eb;
            --font-d: 'Outfit', sans-serif;
            --font-b: 'Sora', sans-serif;
            --font-m: 'JetBrains Mono', monospace;
            --ease: cubic-bezier(0.65, 0.05, 0, 1);
            --container: 1200px;
            --radius: 16px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { -webkit-font-smoothing: antialiased; }
        body { background: var(--bg); color: var(--text); font-family: var(--font-b); overflow-x: hidden; }
        ::selection { background: rgba(232,75,42,0.12); }
        a { color: inherit; text-decoration: none; }
        img { max-width: 100%; display: block; }
        .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

        /* ======= NAV ======= */
        .nav {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            padding: 14px 0;
            background: rgba(255,255,255,0.92);
            backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid var(--border);
        }
        .nav-inner { display: flex; justify-content: space-between; align-items: center; }
        .nav-logo { display: flex; align-items: center; gap: 10px; }
        .nav-logo img { height: 36px; }
        .nav-logo span { font-family: var(--font-d); font-size: 1.2rem; font-weight: 700; }
        .nav-right { display: flex; align-items: center; gap: 20px; }
        .nav-link {
            color: var(--text-2); font-size: 0.9rem; font-weight: 500;
            transition: color 0.3s ease;
        }
        .nav-link:hover { color: var(--primary); }
        .nav-cta {
            padding: 10px 24px; background: var(--text); border-radius: 50px;
            color: white; font-size: 0.88rem; font-weight: 600;
            border: none; cursor: pointer; transition: all 0.4s var(--ease);
            position: relative; overflow: hidden;
        }
        .nav-cta::before {
            content: ''; position: absolute; inset: 0;
            background: var(--gradient); transform: translateY(100%);
            transition: transform 0.4s var(--ease);
        }
        .nav-cta:hover::before { transform: translateY(0); }
        .nav-cta span { position: relative; z-index: 1; }

        /* ======= FAQ CONTENT ======= */
        .faq-page { padding: 110px 0 80px; }

        .faq-hero {
            text-align: center; margin-bottom: 48px;
        }
        .faq-hero h1 {
            font-family: var(--font-d); font-size: 3rem; font-weight: 800;
            margin-bottom: 12px;
        }
        .faq-hero h1 span {
            background: var(--gradient);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
        }
        .faq-hero p {
            color: var(--text-2); font-size: 1.1rem; max-width: 550px; margin: 0 auto;
        }

        /* Search */
        .faq-search {
            max-width: 560px; margin: 0 auto 40px; position: relative;
        }
        .faq-search input {
            width: 100%; padding: 16px 22px 16px 50px;
            border: 2px solid var(--border); border-radius: 60px;
            font-size: 1rem; font-family: var(--font-b);
            outline: none; transition: all 0.3s ease;
            background: var(--bg-off);
        }
        .faq-search input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(232,75,42,0.08);
            background: white;
        }
        .faq-search input::placeholder { color: var(--text-3); }
        .faq-search i {
            position: absolute; left: 20px; top: 50%; transform: translateY(-50%);
            color: var(--text-3); font-size: 1rem;
        }

        /* Product Tabs */
        .faq-tabs {
            display: flex; justify-content: center; gap: 0; margin-bottom: 32px;
        }
        .faq-tab {
            display: flex; align-items: center; gap: 10px;
            padding: 14px 36px; font-family: var(--font-b);
            font-size: 1rem; font-weight: 600; cursor: pointer;
            border: 2px solid var(--border); background: var(--bg-off);
            color: var(--text-2); transition: all 0.3s var(--ease);
        }
        .faq-tab:first-child { border-radius: 12px 0 0 12px; }
        .faq-tab:last-child { border-radius: 0 12px 12px 0; border-left: none; }
        .faq-tab img { height: 22px; width: auto; }
        .faq-tab.active {
            background: var(--text); border-color: var(--text); color: white;
        }
        .faq-tab:hover:not(.active) {
            border-color: var(--primary); color: var(--primary);
        }
        @media (max-width: 576px) {
            .faq-tab { padding: 10px 22px; font-size: 0.88rem; }
            .faq-tab img { height: 18px; }
        }

        /* Category Grid */
        .category-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 20px; max-width: 900px; margin: 0 auto;
        }
        .category-card {
            background: var(--bg-off); border: 1px solid var(--border);
            border-radius: var(--radius); padding: 32px 24px;
            cursor: pointer; transition: all 0.4s var(--ease);
            display: flex; flex-direction: column; align-items: center;
            text-align: center; gap: 14px;
        }
        .category-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(0,0,0,0.08);
            border-color: var(--primary);
        }
        .category-card-icon {
            width: 52px; height: 52px;
            display: flex; align-items: center; justify-content: center;
            background: white; border-radius: 14px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
        }
        .category-card-icon i {
            font-size: 1.5rem;
            background: var(--gradient);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
        }
        .category-card h3 {
            font-family: var(--font-d); font-size: 1.1rem; font-weight: 700;
        }
        .category-card p {
            font-size: 0.88rem; color: var(--text-2); line-height: 1.5;
        }
        .faq-count {
            font-size: 0.78rem; color: var(--primary); font-weight: 600;
            background: rgba(232,75,42,0.08); padding: 4px 14px;
            border-radius: 20px;
        }

        /* Back button */
        .faq-back {
            display: inline-flex; align-items: center; gap: 8px;
            color: var(--primary); font-weight: 600; font-size: 0.95rem;
            cursor: pointer; margin-bottom: 24px; padding: 8px 0;
            border: none; background: none; font-family: var(--font-b);
            transition: gap 0.3s var(--ease);
        }
        .faq-back:hover { gap: 14px; }

        /* Category header */
        .faq-category-header {
            display: flex; align-items: center; gap: 14px; margin-bottom: 6px;
        }
        .faq-category-header i {
            font-size: 1.4rem;
            background: var(--gradient);
            -webkit-background-clip: text; -webkit-text-fill-color: transparent;
        }
        .faq-category-header h2 {
            font-family: var(--font-d); font-size: 1.5rem; font-weight: 700;
        }
        .faq-category-headline {
            color: var(--text-2); font-size: 0.92rem; margin: 0 0 24px 0;
        }

        /* Accordion */
        .faq-item {
            background: var(--bg-off); border: 1px solid var(--border);
            border-radius: 12px; margin-bottom: 10px;
            overflow: hidden; transition: box-shadow 0.3s ease;
        }
        .faq-item:hover {
            box-shadow: 0 4px 16px rgba(0,0,0,0.05);
        }
        .faq-question {
            display: flex; align-items: center; justify-content: space-between;
            padding: 20px 24px; cursor: pointer; gap: 16px; user-select: none;
        }
        .faq-question span {
            font-weight: 600; font-size: 0.98rem; color: var(--text); flex: 1;
            transition: color 0.3s ease;
        }
        .faq-question i {
            color: var(--primary); font-size: 0.8rem;
            transition: transform 0.3s ease; flex-shrink: 0;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-item.open .faq-question span { color: var(--primary); }
        .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
        .faq-answer-inner {
            padding: 0 24px 24px; border-top: 1px solid var(--border);
            color: var(--text-2); line-height: 1.8; font-size: 0.95rem;
        }
        .faq-answer-inner strong { color: var(--text); }
        .faq-answer-inner a { color: var(--primary); font-weight: 600; }
        .faq-answer-inner a:hover { text-decoration: underline; }
        .faq-answer-inner ul { margin: 10px 0; padding-left: 20px; }
        .faq-answer-inner li { margin-bottom: 6px; }

        /* Loading, empty, error states */
        .faq-loading {
            text-align: center; padding: 60px 20px; color: var(--text-3);
        }
        .faq-loading i {
            font-size: 2rem; color: var(--primary);
            animation: spin 1s linear infinite;
            display: block; margin-bottom: 14px;
        }
        @keyframes spin { to { transform: rotate(360deg); } }
        .faq-empty {
            text-align: center; padding: 48px 20px; color: var(--text-3); font-size: 1rem;
        }
        .faq-empty i { display: block; margin-bottom: 12px; font-size: 1.6rem; }
        .faq-error {
            text-align: center; padding: 48px 20px; color: #e84118;
            background: #fff5f5; border-radius: 12px;
        }
        .faq-error i { font-size: 2rem; display: block; margin-bottom: 10px; }

        /* Footer */
        .footer {
            border-top: 1px solid var(--border); padding: 32px 0;
        }
        .footer-inner {
            display: flex; justify-content: space-between; align-items: center;
        }
        .footer-logo { display: flex; align-items: center; gap: 10px; }
        .footer-logo img { height: 28px; }
        .footer-logo span { font-family: var(--font-d); font-weight: 700; font-size: 1rem; }
        .footer-copy { color: var(--text-3); font-size: 0.82rem; }
        .footer-marks {
            width: 100%; margin-top: 14px; padding-top: 14px;
            border-top: 1px solid var(--border);
            font-size: 0.68rem; line-height: 1.6; color: var(--text-3);
            opacity: 0.75;
        }
        .footer-links { display: flex; gap: 20px; }
        .footer-links a { font-size: 0.86rem; color: var(--text-3); transition: color 0.3s ease; }
        .footer-links a:hover { color: var(--primary); }

        /* Responsive */
        @media (max-width: 768px) {
            .faq-page { padding: 90px 0 60px; }
            .faq-hero h1 { font-size: 2rem; }
            .faq-hero p { font-size: 0.95rem; }
            .category-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 14px; }
            .category-card { padding: 24px 18px; }
            .faq-category-header h2 { font-size: 1.3rem; }
            .faq-question { padding: 16px 20px; }
            .faq-question span { font-size: 0.92rem; }
            .faq-answer-inner { padding: 0 20px 20px; }
            .footer-inner { flex-direction: column; gap: 12px; }
        }
        @media (max-width: 576px) {
            .faq-hero h1 { font-size: 1.6rem; }
            .category-grid { grid-template-columns: 1fr; }
        }