/* Base Reset & Variables */
        :root {
            --bg-primary: #fcfcfc;
            --bg-secondary: #f4f4f4;
            --text-primary: #111111;
            --text-secondary: #555555;
            --border-color: #111111;
            --accent-color: #000000;
            --shadow-classic: 4px 4px 0px #000000;
            --shadow-hover: 8px 8px 0px #000000;
            --font-serif: "Playfair Display", Georgia, "Times New Roman", serif;
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-primary);
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }

        /* Black & White Film Aesthetics Layout */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }

        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        /* Typography */
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-serif);
            font-weight: 800;
            text-transform: uppercase;
            letter-spacing: -0.5px;
        }

        /* Header & Navigation */
        header {
            border-bottom: 2px solid var(--border-color);
            background: var(--bg-primary);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .logo-wrap {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .ai-page-logo {
            height: 40px;
            filter: grayscale(100%);
        }

        .nav-menu {
            display: flex;
            gap: 20px;
            list-style: none;
            align-items: center;
        }

        .nav-link {
            font-weight: 600;
            font-size: 0.9rem;
            padding: 5px 10px;
            border: 1px solid transparent;
        }

        .nav-link:hover {
            border: 1px solid var(--border-color);
            background: var(--bg-secondary);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            border: 2px solid var(--border-color);
            padding: 8px;
            background: none;
        }

        .menu-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text-primary);
        }

        /* Hero Section (No Images Allowed) */
        .hero {
            padding: 100px 0 80px 0;
            background: var(--bg-primary);
            border-bottom: 2px solid var(--border-color);
            text-align: center;
        }

        .hero-badge {
            display: inline-block;
            border: 1px solid var(--border-color);
            padding: 4px 12px;
            font-size: 0.8rem;
            font-weight: 700;
            text-transform: uppercase;
            margin-bottom: 20px;
            background: var(--bg-secondary);
        }

        .hero h1 {
            font-size: clamp(2rem, 5vw, 3.5rem);
            line-height: 1.1;
            margin-bottom: 20px;
            max-width: 900px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-desc {
            font-size: clamp(1rem, 2vw, 1.25rem);
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto 40px auto;
        }

        .hero-buttons {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            font-weight: 700;
            font-size: 1rem;
            border: 2px solid var(--border-color);
            cursor: pointer;
            transition: all 0.2s ease;
            background: var(--bg-primary);
            box-shadow: var(--shadow-classic);
        }

        .btn-primary {
            background: var(--text-primary);
            color: var(--bg-primary);
        }

        .btn-primary:hover {
            transform: translate(-2px, -2px);
            box-shadow: var(--shadow-hover);
        }

        .btn-secondary:hover {
            background: var(--bg-secondary);
            transform: translate(-2px, -2px);
            box-shadow: var(--shadow-hover);
        }

        /* Section Layouts */
        section {
            padding: 80px 0;
            border-bottom: 2px solid var(--border-color);
        }

        .section-light {
            background-color: var(--bg-primary);
        }

        .section-dark {
            background-color: var(--bg-secondary);
        }

        .section-title-wrap {
            margin-bottom: 50px;
            text-align: center;
        }

        .section-title {
            font-size: 2.2rem;
            display: inline-block;
            position: relative;
            padding-bottom: 10px;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--text-primary);
        }

        .section-subtitle {
            color: var(--text-secondary);
            margin-top: 10px;
            font-size: 1rem;
        }

        /* Grid Frameworks */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
            gap: 40px;
        }

        @media (max-width: 768px) {
            .grid-2 {
                grid-template-columns: 1fr;
            }
        }

        /* Card Styles (Film Contact Sheet Vibe) */
        .card {
            background: var(--bg-primary);
            border: 2px solid var(--border-color);
            padding: 30px;
            position: relative;
            box-shadow: var(--shadow-classic);
            transition: all 0.3s ease;
        }

        .card:hover {
            transform: translate(-4px, -4px);
            box-shadow: var(--shadow-hover);
        }

        .card-number {
            font-family: var(--font-serif);
            font-size: 3rem;
            color: #dddddd;
            position: absolute;
            top: 10px;
            right: 20px;
            font-weight: 900;
            z-index: 1;
        }

        .card-content {
            position: relative;
            z-index: 2;
        }

        .card-title {
            font-size: 1.3rem;
            margin-bottom: 15px;
        }

        /* Platform list tag clouds */
        .tag-container {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 15px;
        }

        .tag {
            font-size: 0.8rem;
            border: 1px solid var(--border-color);
            padding: 3px 8px;
            background: var(--bg-secondary);
            font-weight: 600;
        }

        /* Steps & Workflow */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }

        .step-item {
            border: 2px dashed var(--border-color);
            padding: 25px;
            text-align: center;
            background: var(--bg-primary);
        }

        .step-num {
            font-family: var(--font-serif);
            font-size: 1.8rem;
            font-weight: bold;
            border: 2px solid var(--border-color);
            width: 50px;
            height: 50px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            margin-bottom: 15px;
            background: var(--bg-secondary);
        }

        /* Comparison Table */
        .table-responsive {
            overflow-x: auto;
            border: 2px solid var(--border-color);
            box-shadow: var(--shadow-classic);
            margin-top: 30px;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            background: var(--bg-primary);
        }

        th, td {
            padding: 15px 20px;
            border: 1px solid var(--border-color);
        }

        th {
            background: var(--bg-secondary);
            font-family: var(--font-serif);
            font-weight: bold;
        }

        tr:nth-child(even) {
            background: var(--bg-secondary);
        }

        .score-highlight {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            font-weight: 900;
            color: #000;
        }

        /* Comparison review card */
        .review-banner {
            border: 2px solid var(--border-color);
            padding: 30px;
            margin-top: 30px;
            background: var(--bg-primary);
            box-shadow: var(--shadow-classic);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
        }

        .review-score-box {
            text-align: center;
            border-right: 2px solid var(--border-color);
            padding-right: 40px;
        }

        @media (max-width: 768px) {
            .review-score-box {
                border-right: none;
                padding-right: 0;
                width: 100%;
            }
        }

        /* Form styling */
        .form-wrap {
            border: 2px solid var(--border-color);
            padding: 40px;
            background: var(--bg-primary);
            box-shadow: var(--shadow-classic);
            max-width: 800px;
            margin: 0 auto;
        }

        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
        }

        .form-group-full {
            grid-column: 1 / -1;
        }

        .form-group label {
            font-weight: bold;
            margin-bottom: 8px;
            font-size: 0.9rem;
        }

        .form-group input, .form-group select, .form-group textarea {
            border: 2px solid var(--border-color);
            padding: 12px;
            font-family: inherit;
            background: var(--bg-primary);
            transition: all 0.3s;
        }

        .form-group input:focus, .form-group select:focus, .form-group textarea:focus {
            outline: none;
            background: var(--bg-secondary);
        }

        /* FAQ Accordion */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            border: 2px solid var(--border-color);
            margin-bottom: 15px;
            background: var(--bg-primary);
            box-shadow: 2px 2px 0px #000;
        }

        .faq-question {
            padding: 20px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: bold;
            user-select: none;
        }

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.3s ease;
            color: var(--text-secondary);
            border-top: 0px solid var(--border-color);
        }

        .faq-item.active .faq-answer {
            padding: 20px;
            max-height: 1000px;
            border-top: 2px solid var(--border-color);
        }

        .faq-icon::before {
            content: '+';
            font-size: 1.5rem;
        }

        .faq-item.active .faq-icon::before {
            content: '−';
        }

        /* Images and Media Grid */
        .image-gallery {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 20px;
            margin-top: 40px;
        }

        .gallery-item {
            border: 2px solid var(--border-color);
            padding: 10px;
            background: #fff;
            box-shadow: var(--shadow-classic);
        }

        .gallery-item img {
            width: 100%;
            height: auto;
            filter: grayscale(100%);
            transition: filter 0.5s ease;
            display: block;
        }

        .gallery-item img:hover {
            filter: grayscale(0%);
        }

        /* Contact Details block */
        .contact-info-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }

        .contact-card {
            border: 2px solid var(--border-color);
            padding: 25px;
            background: var(--bg-primary);
            text-align: center;
            box-shadow: var(--shadow-classic);
        }

        .contact-qr {
            max-width: 150px;
            margin: 15px auto;
            border: 1px solid var(--border-color);
            padding: 5px;
            background: #fff;
        }

        .contact-qr img {
            width: 100%;
            height: auto;
        }

        /* Footer & Links */
        footer {
            background: #111;
            color: #eee;
            padding: 60px 0 30px 0;
            border-top: 4px solid var(--border-color);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-title {
            font-family: var(--font-serif);
            font-size: 1.2rem;
            color: #fff;
            margin-bottom: 20px;
            border-bottom: 1px solid #333;
            padding-bottom: 10px;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #aaa;
            font-size: 0.9rem;
        }

        .footer-links a:hover {
            color: #fff;
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid #222;
            padding-top: 20px;
            text-align: center;
            font-size: 0.85rem;
            color: #888;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }

        .friend-links {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
            margin: 15px 0;
        }

        .friend-links a {
            color: #888;
            font-size: 0.8rem;
        }

        .friend-links a:hover {
            color: #fff;
        }

        /* Float Widget */
        .floating-widget {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border: 2px solid var(--border-color);
            background: var(--bg-primary);
            box-shadow: 2px 2px 0px #000;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.2s;
            position: relative;
        }

        .float-btn:hover {
            transform: translate(-2px, -2px);
            box-shadow: 4px 4px 0px #000;
        }

        .float-btn svg {
            width: 24px;
            height: 24px;
        }

        .float-qr-hover {
            position: absolute;
            bottom: 60px;
            right: 0;
            border: 2px solid var(--border-color);
            background: #fff;
            padding: 10px;
            box-shadow: var(--shadow-classic);
            display: none;
            width: 160px;
        }

        .float-btn:hover .float-qr-hover {
            display: block;
        }

        /* Article list styles */
        .article-card {
            border-bottom: 1px solid var(--border-color);
            padding: 15px 0;
        }

        .article-card:last-child {
            border-bottom: none;
        }

        .article-card a {
            font-weight: bold;
            font-size: 1.05rem;
            display: block;
            margin-bottom: 5px;
        }

        /* Responsive Design */
        @media (max-width: 991px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background: var(--bg-primary);
                border-bottom: 2px solid var(--border-color);
                padding: 20px;
                gap: 15px;
            }

            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }
        }