:root {
            --primary: #2c3e50;
            --accent: #e74c3c;
            --accent-hover: #c0392b;
            --gold: #f1c40f;
            --light: #f8f9fa;
            --gray: #6c757d;
            --dark: #1a1a2e;
            --radius: 12px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.75;
            color: var(--primary);
            background: #fafafa;
            font-size: 16px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: #fff;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 14px 20px;
            max-width: 1260px;
            margin: 0 auto;
            flex-wrap: wrap;
            gap: 10px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -1px;
            color: var(--dark);
            text-decoration: none;
            font-family: "Segoe UI", Roboto, sans-serif;
        }
        .my-logo span {
            color: var(--accent);
        }
        .my-logo:hover {
            text-decoration: none;
        }
        .nav-links {
            display: flex;
            gap: 18px;
            list-style: none;
            align-items: center;
        }
        .nav-links a {
            font-weight: 500;
            color: var(--primary);
            padding: 6px 12px;
            border-radius: 20px;
            transition: background 0.2s;
        }
        .nav-links a:hover {
            background: #f0f0f0;
            text-decoration: none;
            color: var(--accent);
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            cursor: pointer;
            color: var(--primary);
            padding: 4px 8px;
            border-radius: 8px;
        }
        .hamburger:hover {
            background: #f0f0f0;
        }
        .breadcrumb-nav {
            background: #f8f9fa;
            border-bottom: 1px solid #e9ecef;
            font-size: 0.9rem;
            padding: 8px 0;
        }
        .breadcrumb-nav .container {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--gray);
        }
        .breadcrumb-nav .sep {
            color: #ccc;
        }
        .breadcrumb-nav .active {
            color: var(--primary);
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            color: #fff;
            padding: 60px 0 48px;
            text-align: center;
            border-radius: 0 0 30px 30px;
        }
        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            margin-bottom: 14px;
            font-weight: 800;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .hero p {
            font-size: 1.15rem;
            max-width: 700px;
            margin: 0 auto 20px;
            opacity: 0.9;
        }
        .hero-badge {
            background: rgba(255, 255, 255, 0.15);
            padding: 6px 18px;
            border-radius: 20px;
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 16px;
            backdrop-filter: blur(4px);
        }
        .search-box {
            background: #fff;
            max-width: 520px;
            margin: 0 auto;
            border-radius: 50px;
            padding: 5px;
            display: flex;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            overflow: hidden;
        }
        .search-box input {
            flex: 1;
            border: none;
            outline: none;
            padding: 12px 20px;
            font-size: 1rem;
            background: transparent;
        }
        .search-box button {
            background: var(--accent);
            border: none;
            color: #fff;
            padding: 10px 24px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: background 0.2s;
        }
        .search-box button:hover {
            background: var(--accent-hover);
        }
        .main-content {
            padding: 30px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 40px;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius);
            padding: 32px;
            box-shadow: var(--shadow);
            margin-bottom: 32px;
        }
        h2 {
            font-size: 1.9rem;
            margin: 1.2em 0 0.6em;
            color: var(--dark);
            font-weight: 700;
            line-height: 1.3;
            border-left: 5px solid var(--accent);
            padding-left: 14px;
        }
        h3 {
            font-size: 1.45rem;
            margin: 1em 0 0.5em;
            color: var(--dark);
            font-weight: 600;
        }
        h4 {
            font-size: 1.15rem;
            margin: 0.8em 0 0.4em;
            color: var(--primary);
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2em;
        }
        ul,
        ol {
            margin: 0.8em 0 1.2em 1.5em;
        }
        li {
            margin-bottom: 0.4em;
        }
        .highlight-box {
            background: #fdf8e8;
            border-left: 4px solid var(--gold);
            padding: 18px 22px;
            border-radius: 8px;
            margin: 24px 0;
        }
        .info-box {
            background: #eaf4fc;
            border-left: 4px solid #3498db;
            padding: 18px 22px;
            border-radius: 8px;
            margin: 24px 0;
        }
        .featured-image-wrapper {
            margin: 28px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .featured-image-wrapper img {
            width: 100%;
            object-fit: cover;
        }
        .image-caption {
            text-align: center;
            font-size: 0.85rem;
            color: var(--gray);
            padding: 10px;
            background: #f8f9fa;
        }
        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 0.95rem;
        }
        .comparison-table th,
        .comparison-table td {
            border: 1px solid #e9ecef;
            padding: 12px 14px;
            text-align: left;
        }
        .comparison-table th {
            background: var(--dark);
            color: #fff;
            font-weight: 600;
        }
        .comparison-table tr:nth-child(even) {
            background: #f8f9fa;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 28px 0;
        }
        .stat-card {
            background: #f8f9fa;
            padding: 24px 18px;
            border-radius: var(--radius);
            text-align: center;
            border-top: 4px solid var(--accent);
        }
        .stat-card .number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark);
            display: block;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: var(--gray);
            margin-top: 6px;
        }
        .user-form {
            background: #f8f9fa;
            border-radius: var(--radius);
            padding: 26px;
            margin: 24px 0;
        }
        .user-form h3 {
            margin-top: 0;
        }
        .user-form input,
        .user-form textarea,
        .user-form select {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 0.95rem;
            margin-bottom: 14px;
            font-family: inherit;
            background: #fff;
        }
        .user-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .user-form button {
            background: var(--accent);
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 30px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .user-form button:hover {
            background: var(--accent-hover);
        }
        .star-rating {
            display: flex;
            gap: 4px;
            font-size: 1.6rem;
            color: #ddd;
            margin-bottom: 14px;
        }
        .star-rating i {
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating i.active {
            color: var(--gold);
        }
        .faq-item {
            border-bottom: 1px solid #eee;
            padding: 18px 0;
        }
        .faq-item summary {
            font-weight: 600;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: color 0.2s;
        }
        .faq-item summary:hover {
            color: var(--accent);
        }
        .faq-item summary::before {
            content: "▸";
            transition: transform 0.2s;
        }
        .faq-item[open] summary::before {
            transform: rotate(90deg);
        }
        .site-footer {
            background: var(--dark);
            color: #ccc;
            padding: 40px 0 20px;
            font-size: 0.9rem;
        }
        .site-footer .container {
            text-align: center;
        }
        friend-link {
            display: block;
            margin: 20px 0;
            padding: 20px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 12px;
            font-size: 0.95rem;
        }
        friend-link a {
            color: #f4b942;
            margin: 0 8px;
        }
        .copyright {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.82rem;
            color: #888;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0;
                padding: 12px 0;
                border-top: 1px solid #eee;
                background: #fff;
            }
            .nav-links.show {
                display: flex;
            }
            .nav-links a {
                padding: 10px 16px;
                width: 100%;
                text-align: left;
                border-radius: 8px;
            }
            .header-inner {
                padding: 12px 16px;
            }
            .article-card {
                padding: 20px 16px;
            }
            .hero {
                padding: 40px 0 32px;
            }
            .content-grid {
                gap: 24px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 480px) {
            .search-box {
                flex-direction: column;
                border-radius: 16px;
                padding: 10px;
            }
            .search-box button {
                width: 100%;
                justify-content: center;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            h2 {
                font-size: 1.5rem;
            }
        }