*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --accent: #f9a825;
            --accent-hover: #fbc02d;
            --bg: #f5f7fc;
            --card-bg: #ffffff;
            --text: #1e1e2f;
            --text-light: #555577;
            --border: #dde3ed;
            --radius: 18px;
            --shadow: 0 8px 28px rgba(0, 0, 0, 0.06);
            --font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            --max-width: 1120px;
            --header-bg: linear-gradient(135deg, #0f1a3a 0%, #1a2a6c 50%, #2d4a8e 100%);
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        ul,
        ol {
            padding-left: 1.4rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
        }
        h1 {
            font-size: 2.2rem;
            margin-bottom: 0.6rem;
        }
        h2 {
            font-size: 1.75rem;
            margin: 2.4rem 0 1rem 0;
            border-left: 5px solid var(--accent);
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            margin: 1.8rem 0 0.7rem 0;
        }
        h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.4rem 0;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: var(--header-bg);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.6rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .my-logo:hover {
            color: var(--accent-hover);
        }
        .my-logo span {
            background: var(--accent);
            color: #0f1a3a;
            padding: 0 10px;
            border-radius: 40px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.3px;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.2rem;
            padding: 0;
            margin: 0;
        }
        .nav-list li a {
            color: rgba(255, 255, 255, 0.85);
            padding: 0.5rem 0.9rem;
            border-radius: 40px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.25s;
            display: block;
        }
        .nav-list li a:hover,
        .nav-list li a.active {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.5rem;
            padding: 0.3rem 0.7rem;
            border-radius: 10px;
            cursor: pointer;
            transition: 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.08);
        }
        .breadcrumb {
            background: transparent;
            padding: 0.6rem 0 0.2rem 0;
            font-size: 0.85rem;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb span {
            color: #999;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0 3rem;
        }
        @media (max-width: 900px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 1.8rem 2rem;
            box-shadow: var(--shadow);
            margin-bottom: 2rem;
            border: 1px solid var(--border);
        }
        .card-sm {
            padding: 1.2rem 1.5rem;
        }
        .sidebar .card {
            padding: 1.4rem 1.5rem;
        }
        .sidebar .card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            border-bottom: 2px solid var(--accent);
            padding-bottom: 0.5rem;
            margin-bottom: 0.8rem;
        }
        .link-list {
            list-style: none;
            padding: 0;
        }
        .link-list li {
            padding: 0.35rem 0;
            border-bottom: 1px dashed #eef2f7;
        }
        .link-list li a {
            font-size: 0.92rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .link-list li a i {
            width: 18px;
            color: var(--accent);
        }
        .search-form {
            display: flex;
            gap: 0.4rem;
            margin: 0.8rem 0;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid var(--border);
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
        }
        .search-form input:focus {
            border-color: var(--primary-light);
        }
        .search-form button {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0.7rem 1.2rem;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
        }
        .search-form button:hover {
            background: var(--primary-light);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.6rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #ccc;
            transition: 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: var(--accent);
        }
        .rating-value {
            font-weight: 700;
            color: var(--primary);
            font-size: 1.1rem;
        }
        .comment-form textarea {
            width: 100%;
            padding: 0.9rem 1.1rem;
            border: 2px solid var(--border);
            border-radius: 14px;
            font-family: var(--font);
            font-size: 0.95rem;
            resize: vertical;
            min-height: 90px;
            transition: 0.2s;
        }
        .comment-form textarea:focus {
            border-color: var(--primary-light);
            outline: none;
        }
        .comment-form .btn-submit {
            background: var(--primary);
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            margin-top: 0.5rem;
        }
        .comment-form .btn-submit:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
        }
        .btn-download {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent);
            color: #0f1a3a;
            padding: 0.9rem 2.2rem;
            border-radius: 60px;
            font-weight: 700;
            font-size: 1.1rem;
            box-shadow: 0 6px 20px rgba(249, 168, 37, 0.35);
            transition: all 0.25s;
            border: none;
            cursor: pointer;
        }
        .btn-download:hover {
            background: var(--accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(249, 168, 37, 0.45);
            color: #0f1a3a;
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 2px solid var(--primary);
            color: var(--primary);
            padding: 0.5rem 1.4rem;
            border-radius: 40px;
            font-weight: 600;
            transition: 0.2s;
            background: transparent;
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }
        .featured-img {
            margin: 1.5rem 0;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
        }
        .featured-img figcaption {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 0.4rem;
            text-align: center;
        }
        .info-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.2rem 0;
            font-size: 0.95rem;
        }
        .info-table th {
            background: var(--primary);
            color: #fff;
            padding: 0.6rem 1rem;
            text-align: left;
        }
        .info-table td,
        .info-table th {
            border: 1px solid var(--border);
            padding: 0.6rem 1rem;
        }
        .info-table tr:nth-child(even) {
            background: #f8faff;
        }
        .tip-box {
            background: #f0f7ff;
            border-left: 5px solid var(--primary-light);
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
        }
        .tip-box strong {
            color: var(--primary);
        }
        .site-footer {
            background: var(--header-bg);
            color: rgba(255, 255, 255, 0.85);
            padding: 2.5rem 0 1.2rem;
            margin-top: 3rem;
        }
        .site-footer a {
            color: rgba(255, 255, 255, 0.8);
        }
        .site-footer a:hover {
            color: var(--accent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        @media (max-width: 700px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 1.4rem;
            }
        }
        .footer-copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 1.2rem;
            margin-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
        }
        friend-link {
            display: block;
            margin: 0.6rem 0;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.6rem 0.2rem 0;
            padding: 0.2rem 0.8rem;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 30px;
            font-size: 0.85rem;
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .card {
                padding: 1.2rem 1.2rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(15, 26, 58, 0.96);
                border-radius: 16px;
                padding: 0.6rem 0;
                margin-top: 0.4rem;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 0.6rem 1.2rem;
                border-radius: 0;
            }
            .hamburger {
                display: block;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .info-table {
                font-size: 0.8rem;
            }
            .info-table td,
            .info-table th {
                padding: 0.4rem 0.6rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .card {
                padding: 0.9rem 0.9rem;
            }
            .btn-download {
                width: 100%;
                justify-content: center;
                font-size: 1rem;
                padding: 0.8rem 1.2rem;
            }
            .star-rating {
                font-size: 1.4rem;
            }
        }
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }
        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }
        .text-accent {
            color: var(--accent);
        }
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 0.6rem;
        }
        .mt-2 {
            margin-top: 1.2rem;
        }
        .mb-1 {
            margin-bottom: 0.6rem;
        }
        .mb-2 {
            margin-bottom: 1.2rem;
        }
        .flex {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            flex-wrap: wrap;
        }
        .gap-1 {
            gap: 1rem;
        }
        .badge {
            display: inline-block;
            background: var(--accent);
            color: #0f1a3a;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 0.15rem 0.7rem;
            border-radius: 30px;
            letter-spacing: 0.3px;
        }
        .schema-hidden {
            display: none;
        }