*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f9fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #0057b3;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #ff6b00;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.8rem;
            margin: 0.8rem 0;
        }
        li {
            margin: 0.4rem 0;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #0d1b2a;
            margin-top: 1.8rem;
            margin-bottom: 0.6rem;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #ff6b00;
            padding-bottom: 0.4rem;
            display: inline-block;
        }
        h2 {
            font-size: 1.9rem;
            border-left: 5px solid #ff6b00;
            padding-left: 0.8rem;
            margin-top: 2.4rem;
        }
        h3 {
            font-size: 1.5rem;
            color: #1b3a5c;
        }
        h4 {
            font-size: 1.2rem;
            color: #2d4f6e;
        }
        p {
            margin: 0.9rem 0;
            color: #2c2c3a;
        }
        strong {
            color: #0d1b2a;
            font-weight: 700;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(145deg, #0a1628, #132044);
            color: #fff;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 999;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.6rem 1rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(135deg, #ff6b00, #ffb347);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: #ff6b00;
            font-size: 2rem;
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .navbar {
            display: flex;
            gap: 0.2rem 1.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .navbar a {
            color: #e0e8f0;
            font-weight: 500;
            padding: 0.3rem 0.6rem;
            border-radius: 6px;
            font-size: 0.95rem;
            transition: background 0.2s, color 0.2s;
        }
        .navbar a:hover {
            background: rgba(255, 107, 0, 0.2);
            color: #ffb347;
            text-decoration: none;
        }
        .navbar a.active {
            color: #ff6b00;
            font-weight: 600;
        }
        .breadcrumb {
            background: #eef1f5;
            padding: 0.6rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dde1e7;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #888;
        }
        .breadcrumb a {
            color: #0057b3;
        }
        .breadcrumb .current {
            color: #555;
            font-weight: 500;
        }
        .hero-img-wrap {
            margin: 1.8rem 0 1.2rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
            background: #0d1b2a;
            position: relative;
        }
        .hero-img-wrap img {
            width: 100%;
            max-height: 460px;
            object-fit: cover;
        }
        .hero-img-caption {
            background: rgba(13, 27, 42, 0.7);
            color: #fff;
            padding: 0.6rem 1.2rem;
            font-size: 0.9rem;
            text-align: center;
            backdrop-filter: blur(4px);
        }
        .search-section {
            background: #ffffff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
            border: 1px solid #e8ecf2;
        }
        .search-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .search-form {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            margin-top: 0.8rem;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 0.7rem 1.2rem;
            border: 2px solid #dde1e7;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #ff6b00;
        }
        .search-form button {
            background: #ff6b00;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #e05a00;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.8rem;
            margin: 2.4rem 0;
        }
        @media(max-width:720px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: #fff;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
            border: 1px solid #e8ecf2;
        }
        .card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #dde1e7;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            outline: none;
            transition: border 0.2s;
            margin-top: 0.4rem;
            resize: vertical;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #ff6b00;
        }
        .comment-form .form-group {
            margin-bottom: 1rem;
        }
        .comment-form button,
        .rating-form button {
            background: #0d1b2a;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 30px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background: #1b3a5c;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 2rem;
            margin: 0.6rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            color: #ccc;
            cursor: pointer;
            transition: color 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffb347;
        }
        .rating-form .current-score {
            font-size: 1.1rem;
            font-weight: 600;
            color: #0d1b2a;
        }
        .toc {
            background: #ffffff;
            border-radius: 16px;
            padding: 1.6rem 2rem;
            margin: 2rem 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e8ecf2;
        }
        .toc h3 {
            margin-top: 0;
        }
        .toc ul {
            list-style: none;
            padding: 0;
            columns: 2 280px;
            column-gap: 2rem;
        }
        .toc li {
            margin: 0.3rem 0;
            break-inside: avoid;
        }
        .toc a {
            display: flex;
            align-items: baseline;
            gap: 0.4rem;
            padding: 0.2rem 0;
        }
        .toc a::before {
            content: "▸";
            color: #ff6b00;
            font-weight: 700;
        }
        .content-area {
            background: #fff;
            border-radius: 20px;
            padding: 2.4rem 2.8rem;
            margin: 2rem 0;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef0f4;
        }
        @media(max-width:600px) {
            .content-area {
                padding: 1.4rem 1.2rem;
            }
        }
        .content-area p {
            margin: 1.2rem 0;
        }
        .content-area .highlight-box {
            background: #fef6ed;
            border-left: 5px solid #ff6b00;
            padding: 1.2rem 1.8rem;
            border-radius: 0 12px 12px 0;
            margin: 1.6rem 0;
        }
        .content-area .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6rem 0;
            font-size: 0.95rem;
        }
        .content-area .data-table th {
            background: #0d1b2a;
            color: #fff;
            padding: 0.7rem 1rem;
            text-align: left;
        }
        .content-area .data-table td {
            padding: 0.6rem 1rem;
            border-bottom: 1px solid #e8ecf2;
        }
        .content-area .data-table tr:nth-child(even) {
            background: #f8f9fc;
        }
        .content-area .inline-link {
            font-weight: 600;
            color: #0057b3;
            border-bottom: 1px dotted #bbb;
        }
        .content-area .inline-link:hover {
            color: #ff6b00;
            border-bottom-color: #ff6b00;
        }
        friend-link {
            display: block;
            background: #f0f4fa;
            border-radius: 16px;
            padding: 1.8rem 2.2rem;
            margin: 2.4rem 0 1rem;
            border: 1px solid #dde1e7;
        }
        friend-link::before {
            content: "🌐 Friend Links";
            display: block;
            font-size: 1.3rem;
            font-weight: 700;
            color: #0d1b2a;
            margin-bottom: 0.8rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.8rem 0.2rem 0;
            padding: 0.2rem 0.8rem;
            background: #fff;
            border-radius: 20px;
            border: 1px solid #d0d6de;
            font-size: 0.95rem;
            transition: background 0.2s, border-color 0.2s;
        }
        friend-link a:hover {
            background: #ff6b00;
            color: #fff;
            border-color: #ff6b00;
            text-decoration: none;
        }
        .site-footer {
            background: #0a1628;
            color: #c8d0dc;
            padding: 2rem 0 1.6rem;
            margin-top: 3rem;
            border-top: 3px solid #ff6b00;
        }
        .site-footer .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.2rem;
            align-items: center;
        }
        .site-footer .copyright {
            font-size: 0.9rem;
            opacity: 0.85;
        }
        .site-footer .copyright strong {
            color: #ffb347;
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: inline-block;
            }
            .navbar {
                display: none;
                flex-direction: column;
                width: 100%;
                background: rgba(10, 22, 40, 0.98);
                padding: 1rem 0.6rem;
                border-radius: 0 0 16px 16px;
                gap: 0.3rem;
            }
            .navbar.open {
                display: flex;
            }
            .navbar a {
                padding: 0.5rem 1rem;
                border-radius: 8px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.5rem;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 12px;
            }
            .content-area {
                padding: 1rem 0.8rem;
            }
            .search-form input[type="text"] {
                min-width: 140px;
            }
            .toc ul {
                columns: 1;
            }
        }
        .card,
        .search-section,
        .toc,
        .content-area {
            transition: transform 0.2s ease, box-shadow 0.2s ease;
        }
        .card:hover,
        .search-section:hover,
        .toc:hover {
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.06);
        }
        .last-updated {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.9rem;
            color: #666;
            background: #f4f6fa;
            padding: 0.4rem 1.2rem;
            border-radius: 30px;
            width: fit-content;
            margin: 0.4rem 0 1.2rem;
        }
        .last-updated i {
            color: #ff6b00;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .badge {
            display: inline-block;
            background: #ff6b00;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 0.15rem 0.7rem;
            border-radius: 30px;
            letter-spacing: 0.3px;
        }
        hr {
            margin: 2rem 0;
            border: 0;
            border-top: 2px dashed #dde1e7;
        }