*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, Arial, sans-serif;
            background: #f4f7fa;
            color: #1e2a3a;
            line-height: 1.8;
            padding: 0;
        }
        a {
            color: #d4380d;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #a52a06;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.6rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.9rem;
            color: #0b1a2a;
        }
        h1 {
            font-size: 2.2rem;
            margin-top: 0.2rem;
        }
        h2 {
            font-size: 1.8rem;
            border-bottom: 3px solid #d4380d;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.2rem;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .wrapper {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2a 0%, #1a2f44 100%);
            color: #fff;
            padding: 14px 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
            position: sticky;
            top: 0;
            z-index: 999;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            color: #ffb74d;
            letter-spacing: 1px;
            text-transform: uppercase;
            background: rgba(255, 183, 77, 0.08);
            padding: 4px 16px 4px 12px;
            border-radius: 40px;
            border-left: 4px solid #ffb74d;
            transition: 0.3s;
            display: inline-block;
        }
        .my-logo:hover {
            color: #ffe082;
            text-decoration: none;
            transform: scale(1.02);
        }
        .my-logo small {
            font-size: 0.6rem;
            font-weight: 400;
            color: #aab8c5;
            display: block;
            letter-spacing: 2px;
            text-transform: none;
        }
        .nav-toggle {
            display: none;
            background: transparent;
            border: 2px solid #ffb74d;
            color: #ffb74d;
            font-size: 1.6rem;
            padding: 4px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.3s;
        }
        .nav-toggle:hover {
            background: rgba(255, 183, 77, 0.15);
        }
        .main-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 18px;
            align-items: center;
        }
        .main-nav a {
            color: #e8edf2;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: 0.25s;
        }
        .main-nav a:hover {
            color: #ffb74d;
            border-bottom-color: #ffb74d;
            text-decoration: none;
        }
        .breadcrumb {
            background: #e9edf2;
            padding: 10px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #d0d7de;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #8a9aa8;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #d4380d;
        }
        .breadcrumb .current {
            color: #1e2a3a;
            font-weight: 600;
        }
        main {
            padding: 30px 0 50px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .sidebar {
            background: #ffffff;
            border-radius: 16px;
            padding: 24px 20px;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.05);
            border: 1px solid #e6ecf2;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-left: 4px solid #d4380d;
            padding-left: 12px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar li {
            margin-bottom: 10px;
            border-bottom: 1px dashed #e0e6ed;
            padding-bottom: 8px;
        }
        .sidebar li a {
            font-weight: 500;
        }
        .search-box {
            background: #fff;
            border-radius: 40px;
            border: 2px solid #d0d7de;
            display: flex;
            overflow: hidden;
            transition: 0.3s;
            max-width: 480px;
            margin: 18px 0 24px;
        }
        .search-box:focus-within {
            border-color: #d4380d;
            box-shadow: 0 0 0 4px rgba(212, 56, 13, 0.12);
        }
        .search-box input {
            flex: 1;
            border: none;
            padding: 12px 18px;
            font-size: 1rem;
            background: transparent;
            outline: none;
            font-family: inherit;
        }
        .search-box button {
            background: #d4380d;
            color: #fff;
            border: none;
            padding: 0 22px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: 0.25s;
        }
        .search-box button:hover {
            background: #a52a06;
        }
        .feedback-section {
            background: #fff;
            border-radius: 16px;
            padding: 28px 24px;
            margin-top: 40px;
            box-shadow: 0 4px 18px rgba(0, 0, 0, 0.04);
            border: 1px solid #e6ecf2;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        @media (max-width: 640px) {
            .feedback-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .feedback-card {
            background: #f8fafc;
            padding: 20px 22px;
            border-radius: 14px;
            border: 1px solid #e6ecf2;
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-top: 12px;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 10px 14px;
            border: 2px solid #d0d7de;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #fff;
            transition: 0.3s;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #d4380d;
            outline: none;
            box-shadow: 0 0 0 3px rgba(212, 56, 13, 0.1);
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card .btn {
            background: #d4380d;
            color: #fff;
            border: none;
            padding: 12px 20px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.3s;
        }
        .feedback-card .btn:hover {
            background: #a52a06;
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(212, 56, 13, 0.25);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            gap: 6px;
            justify-content: flex-end;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #d0d7de;
            cursor: pointer;
            transition: 0.2s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #f5a623;
        }
        .site-footer {
            background: #0b1a2a;
            color: #c8d4df;
            padding: 36px 0 20px;
            border-top: 4px solid #d4380d;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        @media (max-width: 600px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .site-footer h4 {
            color: #ffb74d;
            margin-top: 0;
            font-size: 1.1rem;
        }
        friend-link {
            display: block;
            margin-bottom: 10px;
        }
        friend-link a {
            color: #b0c4d8;
            border-bottom: 1px dotted #3a5068;
            padding: 2px 0;
        }
        friend-link a:hover {
            color: #ffb74d;
            border-bottom-color: #ffb74d;
        }
        .copyright {
            text-align: center;
            margin-top: 28px;
            padding-top: 16px;
            border-top: 1px solid #1f3a50;
            font-size: 0.9rem;
            color: #7a94aa;
        }
        .copyright strong {
            color: #b0c4d8;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 0 8px;
                gap: 6px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                width: 100%;
                padding: 10px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .wrapper {
                padding: 0 14px;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.2rem;
                padding: 2px 12px 2px 10px;
            }
            .my-logo small {
                font-size: 0.5rem;
            }
            .feedback-card {
                padding: 16px;
            }
        }
        .badge {
            display: inline-block;
            background: #d4380d;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 2px 14px;
            border-radius: 30px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
        }
        .highlight-box {
            background: #fff3e6;
            border-left: 5px solid #d4380d;
            padding: 18px 22px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .img-caption {
            font-size: 0.85rem;
            color: #5a6f82;
            text-align: center;
            margin-top: 6px;
            font-style: italic;
        }
        .related-links {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 18px;
            margin: 18px 0;
            padding: 16px 0;
            border-top: 1px solid #e0e6ed;
            border-bottom: 1px solid #e0e6ed;
        }
        .related-links a {
            background: #f0f4f9;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.9rem;
            border: 1px solid #d0d7de;
            transition: 0.25s;
        }
        .related-links a:hover {
            background: #d4380d;
            color: #fff;
            border-color: #d4380d;
            text-decoration: none;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
        }
        th,
        td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid #e6ecf2;
        }
        th {
            background: #0b1a2a;
            color: #fff;
            font-weight: 600;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #f8fafc;
        }
        .update-time {
            display: inline-block;
            background: #e9edf2;
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #3a5068;
            margin-bottom: 18px;
        }
        .update-time i {
            margin-right: 6px;
            color: #d4380d;
        }