*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #faf9f6;
            color: #1e1e2a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #d97706;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #b45309;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1.2rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #1a1a2e;
            margin-bottom: 1.2rem;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #1e3a5f;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            border-left: 5px solid #f59e0b;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2d4a6e;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #3b5e7e;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        strong,
        b {
            color: #1a1a2e;
            font-weight: 700;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 60%, #0f3460 100%);
            color: #fff;
            padding: 0 0 0.2rem 0;
            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;
            padding: 0.8rem 20px;
            max-width: 1200px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #fbbf24;
            letter-spacing: -0.03em;
            text-shadow: 0 2px 8px rgba(251, 191, 36, 0.2);
            transition: transform 0.2s;
            display: inline-block;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
            color: #fbbf24;
        }
        .my-logo span {
            color: #fff;
            font-weight: 300;
        }
        .nav-wrap {
            display: flex;
            align-items: center;
            gap: 1.5rem;
        }
        .nav-menu {
            display: flex;
            list-style: none;
            gap: 1.6rem;
            padding: 0;
            margin: 0;
        }
        .nav-menu li a {
            color: #e2e8f0;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: all 0.25s;
        }
        .nav-menu li a:hover {
            color: #fbbf24;
            border-bottom-color: #fbbf24;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            cursor: pointer;
            color: #fbbf24;
            background: transparent;
            border: none;
            padding: 0.2rem 0.5rem;
            transition: color 0.2s;
        }
        .hamburger:hover {
            color: #fff;
        }
        .breadcrumb {
            background: #f1f5f9;
            padding: 0.7rem 20px;
            font-size: 0.9rem;
            color: #475569;
            border-bottom: 1px solid #e2e8f0;
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
        }
        .breadcrumb a {
            color: #1e3a5f;
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: #d97706;
        }
        .breadcrumb .sep {
            margin: 0 0.5rem;
            color: #94a3b8;
        }
        .hero {
            background: linear-gradient(135deg, #fef3c7 0%, #fde68a 50%, #f59e0b 100%);
            padding: 2.5rem 20px;
            text-align: center;
            margin-bottom: 2rem;
            border-radius: 0 0 40px 40px;
        }
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 0.5rem;
            color: #1a1a2e;
        }
        .hero p {
            font-size: 1.2rem;
            color: #2d3748;
            max-width: 800px;
            margin: 0 auto 1rem auto;
        }
        .hero .badge {
            display: inline-block;
            background: #1a1a2e;
            color: #fbbf24;
            padding: 0.3rem 1.2rem;
            border-radius: 40px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.04em;
        }
        .content-area {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 1.5rem 0 3rem 0;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 120px;
            align-self: start;
            background: #ffffff;
            border-radius: 16px;
            padding: 1.8rem 1.5rem;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
            border: 1px solid #f1f0ed;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            margin-top: 0;
            color: #1a1a2e;
            border-bottom: 2px solid #f59e0b;
            padding-bottom: 0.5rem;
            margin-bottom: 1.2rem;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 0 0 1.8rem 0;
        }
        .sidebar ul li {
            margin-bottom: 0.6rem;
            border-bottom: 1px solid #f1f0ed;
            padding-bottom: 0.5rem;
        }
        .sidebar ul li a {
            color: #1e3a5f;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .sidebar ul li a i {
            color: #f59e0b;
            font-size: 0.8rem;
        }
        .sidebar ul li a:hover {
            color: #d97706;
        }
        .featured-image {
            border-radius: 16px;
            overflow: hidden;
            margin: 2rem 0;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: #f1f5f9;
            padding: 0.6rem 1.2rem;
            font-size: 0.9rem;
            color: #475569;
            font-style: italic;
        }
        .search-box {
            background: #ffffff;
            border-radius: 12px;
            padding: 1.5rem;
            margin: 2rem 0;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            border: 1px solid #e2e8f0;
        }
        .search-box h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .search-form {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #e2e8f0;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #f59e0b;
        }
        .search-form button {
            padding: 0.8rem 1.8rem;
            background: #1a1a2e;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #0f3460;
        }
        .feedback-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .feedback-card {
            background: #ffffff;
            border-radius: 16px;
            padding: 1.8rem 1.8rem 2.2rem;
            box-shadow: 0 6px 30px rgba(0, 0, 0, 0.04);
            border: 1px solid #f1f0ed;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
            color: #1a1a2e;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 1rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.7rem 1rem;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            font-family: inherit;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #f59e0b;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 1.6rem;
        }
        .feedback-card .star-rating input {
            display: none;
        }
        .feedback-card .star-rating label {
            cursor: pointer;
            color: #d1d5db;
            transition: color 0.15s;
        }
        .feedback-card .star-rating label:hover,
        .feedback-card .star-rating label:hover~label,
        .feedback-card .star-rating input:checked~label {
            color: #f59e0b;
        }
        .feedback-card .btn-submit {
            padding: 0.8rem 1.8rem;
            background: #d97706;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            font-size: 1rem;
        }
        .feedback-card .btn-submit:hover {
            background: #b45309;
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 0.8rem;
            margin: 1.8rem 0;
            padding: 1.2rem 0;
        }
        .link-grid a {
            background: #f8fafc;
            padding: 0.6rem 1.2rem;
            border-radius: 40px;
            border: 1px solid #e2e8f0;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: all 0.2s;
            font-size: 0.95rem;
        }
        .link-grid a i {
            color: #f59e0b;
        }
        .link-grid a:hover {
            background: #fef3c7;
            border-color: #f59e0b;
            text-decoration: none;
        }
        footer {
            background: #1a1a2e;
            color: #cbd5e1;
            padding: 2.5rem 20px 1.5rem;
            margin-top: 3rem;
            border-top: 4px solid #f59e0b;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-inner h4 {
            color: #fbbf24;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .footer-inner a {
            color: #a0aec0;
        }
        .footer-inner a:hover {
            color: #fbbf24;
        }
        friend-link {
            display: block;
            margin: 1.5rem 0 0.5rem;
            padding: 0.8rem 0;
            border-top: 1px solid #2d3748;
            font-size: 0.95rem;
        }
        friend-link a {
            color: #fbbf24;
            margin: 0 0.8rem 0 0;
            display: inline-block;
        }
        friend-link a:hover {
            color: #fff;
        }
        .copyright {
            text-align: center;
            padding-top: 1.2rem;
            margin-top: 1.2rem;
            border-top: 1px solid #2d3748;
            font-size: 0.9rem;
            color: #718096;
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
        }
        @media screen and (max-width: 900px) {
            .content-area {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .feedback-section {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            h1 {
                font-size: 2.2rem;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        @media screen and (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f3460;
                padding: 1rem 0;
                border-radius: 0 0 16px 16px;
                gap: 0.2rem;
                position: absolute;
                top: 60px;
                left: 0;
                right: 0;
                z-index: 999;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-menu li {
                text-align: center;
                padding: 0.4rem 0;
            }
            .nav-menu li a {
                font-size: 1.1rem;
                padding: 0.5rem 1rem;
                display: block;
            }
            .header-inner {
                position: relative;
                padding: 0.6rem 20px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .hero {
                padding: 1.8rem 16px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.2rem;
            }
            .link-grid {
                grid-template-columns: 1fr;
            }
            .feedback-section {
                grid-template-columns: 1fr;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.4rem 16px;
                overflow-x: auto;
                white-space: nowrap;
            }
        }
        @media screen and (max-width: 480px) {
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .container {
                padding: 0 12px;
            }
            .header-inner {
                padding: 0.5rem 12px;
            }
            .search-form input[type="text"] {
                min-width: 120px;
            }
            .feedback-card {
                padding: 1.2rem;
            }
        }
        .text-muted {
            color: #64748b;
            font-size: 0.95rem;
        }
        .updated-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #e2e8f0;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #1e3a5f;
            font-weight: 500;
        }
        .mt-2 {
            margin-top: 1.5rem;
        }
        .mb-1 {
            margin-bottom: 0.8rem;
        }
        .highlight {
            background: #fef9e7;
            padding: 0.1rem 0.3rem;
            border-radius: 4px;
        }
        .section-divider {
            height: 2px;
            background: linear-gradient(to right, #f59e0b, transparent);
            margin: 2.5rem 0;
            border: none;
        }