*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, Arial, sans-serif;
            background: #f4f7fa;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #e74c3c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0b0e1a 0%, #1a1a2e 100%);
            color: #fff;
            padding: 15px 0;
            border-bottom: 3px solid #c0392b;
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 700;
            color: #f1c40f;
            letter-spacing: 1px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
            transition: transform 0.25s ease;
        }
        .my-logo:hover {
            transform: scale(1.03);
            color: #f39c12;
            text-decoration: none;
        }
        .my-logo i {
            margin-right: 8px;
            color: #e74c3c;
        }
        .my-logo span {
            font-size: 0.9rem;
            color: #bdc3c7;
            font-weight: 400;
            display: block;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 18px;
            align-items: center;
        }
        .nav-list li a {
            color: #ecf0f1;
            font-weight: 500;
            padding: 6px 10px;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
            font-size: 0.95rem;
        }
        .nav-list li a:hover {
            background: rgba(192, 57, 43, 0.7);
            color: #fff;
            text-decoration: none;
        }
        .nav-list li a i {
            margin-right: 5px;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px 10px;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .breadcrumb {
            background: #e9ecef;
            padding: 10px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dcdde1;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            margin: 0 8px;
            color: #7f8c8d;
        }
        .breadcrumb a {
            color: #2c3e50;
        }
        .breadcrumb a:hover {
            color: #c0392b;
        }
        .breadcrumb .current {
            color: #c0392b;
            font-weight: 600;
        }
        main {
            padding: 30px 0 50px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0b0e1a;
            margin-bottom: 0.5rem;
            line-height: 1.2;
            border-left: 6px solid #c0392b;
            padding-left: 20px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #1a1a2e;
            margin: 2rem 0 1rem;
            padding-bottom: 6px;
            border-bottom: 3px solid #e74c3c;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2c3e50;
            margin: 1.6rem 0 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #34495e;
            margin: 1.2rem 0 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            color: #2d3436;
        }
        .content-highlight {
            background: #fff3e0;
            padding: 20px 25px;
            border-left: 5px solid #e67e22;
            border-radius: 0 8px 8px 0;
            margin: 1.5rem 0;
        }
        .content-highlight i {
            color: #e67e22;
            margin-right: 8px;
        }
        .feature-image {
            margin: 2rem 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
        }
        .feature-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .feature-image figcaption {
            background: #1a1a2e;
            color: #ecf0f1;
            padding: 10px 18px;
            font-size: 0.9rem;
            font-style: italic;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.8rem 0;
            border-radius: 10px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            font-size: 0.98rem;
        }
        th,
        td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid #dfe6e9;
        }
        th {
            background: #1a1a2e;
            color: #f1c40f;
            font-weight: 600;
        }
        tr:hover {
            background: #f8f9fa;
        }
        .form-section {
            background: #fff;
            padding: 30px 35px;
            border-radius: 14px;
            box-shadow: 0 8px 35px rgba(0, 0, 0, 0.07);
            margin: 2.5rem 0;
            border: 1px solid #e8ecef;
        }
        .form-section h3 {
            margin-top: 0;
            border-bottom: 2px solid #e74c3c;
            padding-bottom: 10px;
            display: inline-block;
        }
        .form-group {
            margin-bottom: 1.5rem;
        }
        .form-group label {
            font-weight: 600;
            display: block;
            margin-bottom: 5px;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dcdde1;
            border-radius: 8px;
            font-size: 1rem;
            transition: border 0.25s;
            background: #fcfcfc;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #e74c3c;
            outline: none;
            box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.15);
        }
        .form-group textarea {
            min-height: 120px;
            resize: vertical;
        }
        .btn {
            display: inline-block;
            padding: 14px 34px;
            background: #c0392b;
            color: #fff;
            border: none;
            border-radius: 50px;
            font-size: 1.05rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.2s;
            box-shadow: 0 4px 15px rgba(192, 57, 43, 0.3);
        }
        .btn:hover {
            background: #e74c3c;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(192, 57, 43, 0.4);
        }
        .btn i {
            margin-right: 8px;
        }
        .rating-stars {
            display: flex;
            gap: 8px;
            font-size: 1.8rem;
            color: #f1c40f;
            cursor: pointer;
        }
        .rating-stars i {
            transition: transform 0.2s, color 0.2s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
            color: #f39c12;
        }
        friend-link {
            display: block;
            background: #1a1a2e;
            color: #ecf0f1;
            padding: 30px 0;
            margin-top: 40px;
            border-top: 4px solid #c0392b;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            justify-content: center;
        }
        friend-link a {
            color: #f1c40f;
            font-weight: 500;
            padding: 6px 16px;
            border: 1px solid rgba(241, 196, 15, 0.3);
            border-radius: 30px;
            transition: all 0.25s;
        }
        friend-link a:hover {
            background: #c0392b;
            color: #fff;
            border-color: #c0392b;
            text-decoration: none;
        }
        footer {
            background: #0b0e1a;
            color: #bdc3c7;
            padding: 30px 0 20px;
            font-size: 0.95rem;
        }
        footer .container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
        }
        footer .copyright {
            color: #95a5a6;
        }
        footer .copyright i {
            color: #e74c3c;
        }
        .back-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #c0392b;
            color: #fff;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            box-shadow: 0 6px 25px rgba(0, 0, 0, 0.25);
            transition: all 0.3s;
            z-index: 999;
            border: none;
            cursor: pointer;
        }
        .back-top:hover {
            background: #e74c3c;
            transform: translateY(-5px);
            box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }
            .nav-wrapper {
                justify-content: space-between;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                background: #1a1a2e;
                padding: 20px 0;
                border-radius: 0 0 12px 12px;
                gap: 5px;
                width: 100%;
                text-align: center;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                display: block;
                padding: 12px 20px;
                font-size: 1.05rem;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 1.9rem;
                padding-left: 14px;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .container {
                padding: 0 14px;
            }
            .form-section {
                padding: 20px;
            }
            footer .container {
                flex-direction: column;
                text-align: center;
            }
            .back-top {
                bottom: 20px;
                right: 20px;
                width: 44px;
                height: 44px;
                font-size: 1.2rem;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.6rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.95rem;
                width: 100%;
            }
        }
        .text-muted {
            color: #7f8c8d;
            font-size: 0.9rem;
        }
        .last-updated {
            display: inline-block;
            background: #ecf0f1;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.85rem;
            color: #2c3e50;
            margin-bottom: 1rem;
        }
        .last-updated i {
            margin-right: 5px;
            color: #e74c3c;
        }
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin: 1.8rem 0;
        }
        @media (max-width: 768px) {
            .grid-2 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .card {
            background: #fff;
            padding: 25px;
            border-radius: 14px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #eef2f7;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 35px rgba(0, 0, 0, 0.08);
        }
        .card i {
            font-size: 2rem;
            color: #c0392b;
            margin-bottom: 10px;
        }
        .inline-link {
            font-weight: 600;
            color: #c0392b;
            border-bottom: 1px dotted #c0392b;
        }
        .inline-link:hover {
            color: #e74c3c;
            border-bottom-style: solid;
        }