*,
        *::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, sans-serif;
            background: #f8f9fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #2a6df4;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #1a4bb5;
            text-decoration: underline;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            margin-top: 1.8rem;
            margin-bottom: 0.75rem;
            color: #0f0f23;
        }
        h1 {
            font-size: 2.2rem;
            border-bottom: 4px solid #f5c518;
            display: inline-block;
            padding-bottom: 0.3rem;
        }
        h2 {
            font-size: 1.7rem;
            border-left: 5px solid #f5c518;
            padding-left: 1rem;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.3rem;
            margin-top: 1.8rem;
        }
        h4 {
            font-size: 1.1rem;
            margin-top: 1.2rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
        }
        ul,
        ol {
            margin-bottom: 1.2rem;
            padding-left: 1.8rem;
        }
        li {
            margin-bottom: 0.5rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0f0f23 0%, #1a1a3e 100%);
            color: #fff;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            color: #f5c518;
            text-transform: uppercase;
            letter-spacing: 1px;
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            color: #ffd966;
            text-decoration: none;
        }
        .my-logo span {
            color: #fff;
            font-weight: 300;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
        }
        .nav-menu {
            display: flex;
            gap: 1.8rem;
            align-items: center;
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .nav-menu li a {
            color: #e0e0ff;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: 0.2s;
        }
        .nav-menu li a:hover {
            color: #f5c518;
            border-bottom-color: #f5c518;
            text-decoration: none;
        }
        .nav-menu li a i {
            margin-right: 0.3rem;
        }
        .breadcrumb {
            background: #eef0f7;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #ddd;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            list-style: none;
            padding: 0;
            margin: 0;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .breadcrumb ol li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #888;
        }
        .breadcrumb a {
            color: #2a6df4;
        }
        .breadcrumb .current {
            color: #555;
            font-weight: 600;
        }
        .hero-img-wrap {
            margin: 2rem 0 1.5rem;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
            background: #eef0f7;
            position: relative;
        }
        .hero-img-wrap img {
            width: 100%;
            display: block;
            object-fit: cover;
            min-height: 220px;
            max-height: 460px;
        }
        .hero-img-wrap .img-credit {
            position: absolute;
            bottom: 0.5rem;
            right: 0.8rem;
            background: rgba(0, 0, 0, 0.55);
            color: #eee;
            font-size: 0.7rem;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            backdrop-filter: blur(4px);
        }
        .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem 2rem;
            font-size: 0.9rem;
            color: #555;
            margin: 0.8rem 0 1.5rem;
            padding: 0.6rem 0;
            border-top: 1px solid #e0e0e0;
            border-bottom: 1px solid #e0e0e0;
        }
        .meta-info i {
            margin-right: 0.4rem;
            color: #f5c518;
        }
        .last-updated {
            font-weight: 600;
            color: #1a1a2e;
        }
        .content-area {
            padding: 1.5rem 0 3rem;
        }
        .content-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
        }
        .main-article {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 14px;
            padding: 1.5rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            margin-bottom: 1.8rem;
            border: 1px solid #eef0f7;
        }
        .sidebar-card h4 {
            font-size: 1.1rem;
            margin-top: 0;
            margin-bottom: 1rem;
            border-bottom: 2px solid #f5c518;
            padding-bottom: 0.4rem;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card ul li {
            padding: 0.4rem 0;
            border-bottom: 1px solid #f0f0f5;
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            font-weight: 500;
        }
        .search-form {
            display: flex;
            gap: 0.4rem;
            margin: 1.2rem 0 2rem;
            max-width: 600px;
        }
        .search-form input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid #d0d5e0;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.25s;
            background: #fff;
        }
        .search-form input:focus {
            border-color: #f5c518;
            box-shadow: 0 0 0 4px rgba(245, 197, 24, 0.15);
        }
        .search-form button {
            background: #f5c518;
            border: none;
            border-radius: 40px;
            padding: 0.7rem 1.4rem;
            font-weight: 700;
            color: #1a1a2e;
            cursor: pointer;
            transition: 0.2s;
            font-size: 0.95rem;
        }
        .search-form button:hover {
            background: #e0b014;
            transform: scale(1.03);
        }
        .user-feedback {
            background: #fff;
            border-radius: 16px;
            padding: 2rem;
            margin: 3rem 0 2rem;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            border: 1px solid #eef0f7;
        }
        .user-feedback h3 {
            margin-top: 0;
            font-size: 1.4rem;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin-top: 1.5rem;
        }
        .feedback-grid form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .feedback-grid label {
            font-weight: 600;
            font-size: 0.95rem;
        }
        .feedback-grid input,
        .feedback-grid textarea,
        .feedback-grid select {
            padding: 0.7rem 1rem;
            border: 2px solid #d0d5e0;
            border-radius: 10px;
            font-size: 0.95rem;
            outline: none;
            transition: 0.2s;
            font-family: inherit;
            background: #fafbfc;
        }
        .feedback-grid input:focus,
        .feedback-grid textarea:focus,
        .feedback-grid select:focus {
            border-color: #f5c518;
            box-shadow: 0 0 0 4px rgba(245, 197, 24, 0.1);
        }
        .feedback-grid textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-grid .btn-submit {
            background: #1a1a2e;
            color: #fff;
            border: none;
            padding: 0.75rem 1.5rem;
            border-radius: 40px;
            font-weight: 700;
            cursor: pointer;
            transition: 0.2s;
            align-self: flex-start;
            font-size: 0.95rem;
        }
        .feedback-grid .btn-submit:hover {
            background: #2a2a4e;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #ddd;
            cursor: pointer;
        }
        .rating-stars .star {
            transition: 0.15s;
        }
        .rating-stars .star:hover,
        .rating-stars .star.active {
            color: #f5c518;
            transform: scale(1.1);
        }
        .rating-stars .star:hover~.star {
            color: #ddd;
        }
        .friend-links-section {
            background: #1a1a2e;
            color: #ccc;
            padding: 2.5rem 0 1.5rem;
        }
        .friend-links-section .container {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem 2.5rem;
            justify-content: center;
        }
        friend-link {
            display: inline-block;
            font-weight: 500;
        }
        friend-link a {
            color: #f5c518;
            transition: 0.2s;
        }
        friend-link a:hover {
            color: #ffd966;
            text-decoration: underline;
        }
        .site-footer {
            background: #0f0f23;
            color: #aaa;
            text-align: center;
            padding: 1.8rem 0;
            font-size: 0.85rem;
            border-top: 1px solid #2a2a4e;
        }
        .site-footer .copyright {
            margin-top: 0.5rem;
            color: #888;
        }
        .site-footer a {
            color: #f5c518;
        }
        @media (max-width: 992px) {
            .content-wrap {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 1rem;
            }
            .sidebar .sidebar-card {
                margin-bottom: 0;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0.4rem;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid #2a2a4e;
                margin-top: 0.8rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li a {
                display: block;
                padding: 0.6rem 0.8rem;
                border-radius: 8px;
            }
            .nav-menu li a:hover {
                background: rgba(255, 255, 255, 0.05);
                border-bottom-color: transparent;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .meta-info {
                flex-direction: column;
                gap: 0.3rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .hero-img-wrap {
                margin: 1rem 0 1rem;
            }
            .header-inner {
                padding: 0 0.8rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.8rem;
            }
            .content-wrap {
                padding: 0 0.8rem;
            }
            .user-feedback {
                padding: 1.2rem;
            }
            .rating-stars {
                font-size: 1.3rem;
            }
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 5px solid #f5c518;
            padding: 1.2rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.5rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .emoji-big {
            font-size: 1.3rem;
        }
        .btn-back-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #f5c518;
            color: #1a1a2e;
            border: none;
            border-radius: 50%;
            width: 48px;
            height: 48px;
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            transition: 0.2s;
            z-index: 900;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .btn-back-top:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
            background: #e0b014;
        }
        @media (max-width: 600px) {
            .btn-back-top {
                bottom: 1rem;
                right: 1rem;
                width: 42px;
                height: 42px;
                font-size: 1.1rem;
            }
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            background: #fff;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
        }
        th,
        td {
            padding: 0.8rem 1rem;
            text-align: left;
            border-bottom: 1px solid #eee;
        }
        th {
            background: #f5c518;
            color: #1a1a2e;
            font-weight: 700;
        }
        tr:last-child td {
            border-bottom: none;
        }
        tr:hover td {
            background: #faf9f0;
        }