* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #faf9f6;
            color: #1e1e1e;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.25s;
        }
        a:hover {
            color: #e67e22;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1140px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(145deg, #1a1a2e 0%, #16213e 100%);
            color: #fff;
            padding: 16px 0;
            border-bottom: 4px solid #f1c40f;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f1c40f;
            text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.3);
            transition: transform 0.3s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #f1c40f;
        }
        .my-logo small {
            display: block;
            font-size: 0.65rem;
            font-weight: 400;
            color: #bdc3c7;
            letter-spacing: 1px;
        }
        .nav-toggle {
            display: none;
            font-size: 1.8rem;
            color: #f1c40f;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(241, 196, 15, 0.15);
        }
        nav ul {
            display: flex;
            list-style: none;
            gap: 6px 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav ul li a {
            color: #ecf0f1;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 10px;
            border-radius: 6px;
            transition: background 0.25s, color 0.25s;
        }
        nav ul li a:hover {
            background: rgba(241, 196, 15, 0.2);
            color: #f1c40f;
            text-decoration: none;
        }
        .breadcrumb {
            background: #f8f5ee;
            padding: 10px 0;
            font-size: 0.88rem;
            border-bottom: 1px solid #e8e2d8;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            margin-right: 10px;
            color: #999;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #7f8c8d;
        }
        .breadcrumb a:hover {
            color: #c0392b;
        }
        .breadcrumb .current {
            color: #2c3e50;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(135deg, #2c3e50 0%, #1a252f 100%);
            color: #fff;
            padding: 50px 0 44px;
            text-align: center;
            position: relative;
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 14px;
            letter-spacing: -0.5px;
        }
        .hero h1 span {
            color: #f1c40f;
        }
        .hero p {
            font-size: 1.15rem;
            max-width: 750px;
            margin: 0 auto 10px;
            color: #d5dbdb;
        }
        .hero .meta {
            font-size: 0.9rem;
            color: #95a5a6;
            margin-top: 16px;
        }
        .hero .meta i {
            margin-right: 6px;
        }
        main {
            padding: 40px 0 60px;
        }
        main .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .article-body {
            min-width: 0;
        }
        .sidebar {
            min-width: 0;
        }
        h2 {
            font-size: 1.9rem;
            margin: 48px 0 16px;
            color: #1a1a2e;
            border-left: 5px solid #f1c40f;
            padding-left: 18px;
        }
        h3 {
            font-size: 1.4rem;
            margin: 32px 0 12px;
            color: #2c3e50;
        }
        h4 {
            font-size: 1.15rem;
            margin: 22px 0 8px;
            color: #34495e;
            font-weight: 600;
        }
        p {
            margin-bottom: 18px;
            color: #2d2d2d;
        }
        .article-body ul,
        .article-body ol {
            margin: 0 0 20px 24px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 4px solid #f1c40f;
            padding: 18px 22px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight-box strong {
            color: #c0392b;
        }
        .image-wrapper {
            margin: 28px 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            background: #eee;
        }
        .image-wrapper img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .image-wrapper figcaption {
            padding: 10px 16px;
            font-size: 0.85rem;
            color: #7f8c8d;
            background: #fff;
            border-top: 1px solid #ecf0f1;
            text-align: center;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 12px;
            padding: 22px 20px;
            margin-bottom: 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #ecf0f1;
        }
        .sidebar-card h3 {
            font-size: 1.25rem;
            margin-top: 0;
            margin-bottom: 14px;
            border-bottom: 2px solid #f1c40f;
            padding-bottom: 8px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card ul li {
            margin-bottom: 10px;
            padding: 0;
        }
        .sidebar-card ul li a {
            font-weight: 500;
            display: block;
            padding: 6px 0;
            border-bottom: 1px dashed #f0f0f0;
        }
        .sidebar-card ul li a:hover {
            padding-left: 6px;
        }
        .form-card {
            background: #fff;
            border-radius: 12px;
            padding: 24px 22px;
            margin: 32px 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e8e2d8;
        }
        .form-card h3 {
            margin-top: 0;
            font-size: 1.4rem;
            border-bottom: 2px solid #f1c40f;
            padding-bottom: 10px;
            margin-bottom: 18px;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid #ccc;
            border-radius: 8px;
            font-size: 1rem;
            font-family: inherit;
            transition: border 0.25s;
            background: #fcfcfc;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #f1c40f;
            outline: none;
            box-shadow: 0 0 0 3px rgba(241, 196, 15, 0.15);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }
        .btn {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 12px 30px;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
            display: inline-block;
        }
        .btn:hover {
            background: #e74c3c;
            transform: translateY(-2px);
        }
        .btn-secondary {
            background: #2c3e50;
        }
        .btn-secondary:hover {
            background: #34495e;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            margin: 8px 0 12px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #f1c40f;
        }
        footer {
            background: #1a1a2e;
            color: #bdc3c7;
            padding: 40px 0 20px;
            border-top: 4px solid #f1c40f;
        }
        footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
        }
        footer h4 {
            color: #f1c40f;
            margin-bottom: 14px;
            font-size: 1.1rem;
        }
        footer a {
            color: #95a5a6;
        }
        footer a:hover {
            color: #f1c40f;
        }
        friend-link {
            display: block;
            margin-bottom: 6px;
        }
        friend-link a {
            display: inline-block;
            padding: 2px 0;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            margin-top: 20px;
            font-size: 0.88rem;
            color: #7f8c8d;
        }
        @media (max-width: 1024px) {
            main .container {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .sidebar .sidebar-card {
                margin-bottom: 0;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            nav {
                width: 100%;
                display: none;
                margin-top: 12px;
                border-top: 1px solid rgba(255, 255, 255, 0.1);
                padding-top: 12px;
            }
            nav.open {
                display: block;
            }
            nav ul {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            nav ul li a {
                display: block;
                padding: 10px 12px;
                border-radius: 6px;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
            .hero p {
                font-size: 1rem;
            }
            h2 {
                font-size: 1.5rem;
                padding-left: 14px;
            }
            h3 {
                font-size: 1.2rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            footer .container {
                grid-template-columns: 1fr;
            }
            .my-logo {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 14px;
            }
            .form-card {
                padding: 16px;
            }
            .btn {
                width: 100%;
                text-align: center;
            }
        }