*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f5f7fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #e65c1e;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #b0440e;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin-bottom: 1rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            color: #ff6f3c;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(255, 111, 60, 0.3);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo i {
            font-size: 2rem;
            color: #ffb347;
        }
        .my-logo:hover {
            text-decoration: none;
            color: #ff8a5c;
        }
        .nav-menu {
            display: flex;
            gap: 0.25rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-menu a {
            color: #eaeaea;
            padding: 0.5rem 0.9rem;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .nav-menu a:hover {
            background: rgba(255, 111, 60, 0.2);
            color: #ffb347;
            text-decoration: none;
        }
        .nav-menu a i {
            margin-right: 0.3rem;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #ff6f3c;
            color: #ff6f3c;
            font-size: 1.6rem;
            padding: 0.3rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .hamburger:hover {
            background: #ff6f3c;
            color: #fff;
        }
        #nav-toggle {
            display: none;
        }
        #nav-toggle:checked+.hamburger+.nav-menu {
            display: flex;
            flex-direction: column;
            width: 100%;
            margin-top: 0.75rem;
            background: rgba(15, 12, 41, 0.95);
            padding: 1rem 0.5rem;
            border-radius: 16px;
        }
        #nav-toggle:checked+.hamburger+.nav-menu a {
            width: 100%;
            text-align: center;
            padding: 0.7rem 0;
        }
        .breadcrumb {
            background: #fff;
            padding: 0.6rem 0;
            border-bottom: 1px solid #e0e0e0;
            font-size: 0.85rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #999;
        }
        .breadcrumb a {
            color: #e65c1e;
        }
        .breadcrumb .current {
            color: #555;
        }
        main {
            padding: 2rem 0 3rem;
        }
        .article-wrapper {
            background: #fff;
            border-radius: 24px;
            padding: 2.5rem 2rem;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.05);
            margin-bottom: 2.5rem;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #1a1a2e;
            line-height: 1.2;
            margin-bottom: 0.5rem;
            letter-spacing: -0.5px;
        }
        h1 i {
            color: #ff6f3c;
            margin-right: 0.5rem;
        }
        .subtitle {
            font-size: 1.05rem;
            color: #666;
            margin-bottom: 1.5rem;
            border-left: 4px solid #ff6f3c;
            padding-left: 1rem;
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #f0f4ff;
            padding: 0.4rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #2a4a7f;
            margin-bottom: 2rem;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #1a1a2e;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            border-bottom: 3px solid #ff6f3c;
            padding-bottom: 0.4rem;
        }
        h2 i {
            color: #ff6f3c;
            margin-right: 0.5rem;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2d2d44;
            margin-top: 2rem;
            margin-bottom: 0.7rem;
        }
        h3 i {
            color: #e68a2e;
            margin-right: 0.5rem;
            font-size: 1.3rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #3a3a55;
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
        }
        p {
            margin-bottom: 1.1rem;
            font-size: 1.05rem;
            color: #2c2c3a;
        }
        .highlight-box {
            background: #fef7f0;
            border-left: 5px solid #ff6f3c;
            padding: 1.2rem 1.5rem;
            border-radius: 12px;
            margin: 1.5rem 0;
        }
        .highlight-box p {
            margin-bottom: 0.4rem;
        }
        .emoji-big {
            font-size: 1.8rem;
            vertical-align: middle;
        }
        .featured-image {
            margin: 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
            background: #f0f0f5;
        }
        .featured-image img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 0.6rem 1rem;
            background: #fafafa;
            font-size: 0.9rem;
            color: #555;
            text-align: center;
            border-top: 1px solid #eee;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.98rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            border: 1px solid #ddd;
            text-align: left;
        }
        th {
            background: #302b63;
            color: #fff;
            font-weight: 600;
        }
        tr:nth-child(even) {
            background: #f9f9ff;
        }
        .link-group {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            background: #f5f3ff;
            padding: 1rem 1.5rem;
            border-radius: 16px;
            margin: 1.5rem 0;
        }
        .link-group a {
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .search-section {
            background: #fff;
            border-radius: 20px;
            padding: 2rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
            margin-bottom: 2rem;
        }
        .search-form {
            display: flex;
            gap: 0.8rem;
            flex-wrap: wrap;
            max-width: 640px;
            margin: 1rem 0 0;
        }
        .search-form input {
            flex: 1;
            min-width: 200px;
            padding: 0.8rem 1.2rem;
            border: 2px solid #ddd;
            border-radius: 40px;
            font-size: 1rem;
            outline: none;
            transition: border 0.25s;
        }
        .search-form input:focus {
            border-color: #ff6f3c;
        }
        .search-form button {
            padding: 0.8rem 1.8rem;
            background: #ff6f3c;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover {
            background: #e55a2b;
        }
        .interact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .card-interact {
            background: #fff;
            border-radius: 20px;
            padding: 1.8rem;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
            border: 1px solid #f0f0f0;
        }
        .card-interact h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            font-size: 0.95rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e0e0e0;
            border-radius: 12px;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border 0.25s;
            background: #fafafa;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #ff6f3c;
            outline: none;
            background: #fff;
        }
        .form-group textarea {
            min-height: 90px;
            resize: vertical;
        }
        .btn-submit {
            padding: 0.7rem 2rem;
            background: #302b63;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-submit:hover {
            background: #1f1a4a;
            transform: scale(1.02);
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #ffb347;
            cursor: pointer;
            margin: 0.5rem 0;
        }
        .rating-stars i {
            transition: transform 0.15s, color 0.2s;
        }
        .rating-stars i:hover {
            transform: scale(1.2);
            color: #ff8c00;
        }
        .site-footer {
            background: #0f0c29;
            color: #ccc;
            padding: 3rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-col h4 {
            color: #ffb347;
            margin-top: 0;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
        }
        .footer-col a {
            color: #bbb;
            display: block;
            padding: 0.2rem 0;
            font-size: 0.95rem;
        }
        .footer-col a:hover {
            color: #ffb347;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.04);
            padding: 1.2rem 1.5rem;
            border-radius: 16px;
            margin: 1.5rem 0 2rem;
            border: 1px solid rgba(255, 255, 255, 0.06);
        }
        friend-link a {
            color: #ffb347;
            display: inline-block;
            margin-right: 1.5rem;
            padding: 0.2rem 0;
        }
        friend-link a:hover {
            color: #ff8a5c;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.9rem;
            color: #999;
        }
        .copyright strong {
            color: #ddd;
        }
        @media screen and (max-width: 768px) {
            .hamburger {
                display: inline-block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                margin-top: 0;
            }
            .nav-menu a {
                padding: 0.6rem 0.8rem;
                font-size: 0.9rem;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.3rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .article-wrapper {
                padding: 1.5rem 1rem;
            }
            .interact-grid {
                grid-template-columns: 1fr;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form input {
                min-width: auto;
            }
            .breadcrumb {
                font-size: 0.75rem;
                padding: 0.4rem 0;
            }
            .link-group {
                flex-direction: column;
                gap: 0.4rem;
            }
            .rating-stars {
                font-size: 1.5rem;
            }
            friend-link a {
                display: block;
                margin-bottom: 0.4rem;
            }
        }
        @media screen and (max-width: 480px) {
            html {
                font-size: 15px;
            }
            .container {
                padding: 0 0.9rem;
            }
            .my-logo {
                font-size: 1.1rem;
            }
            .my-logo i {
                font-size: 1.4rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            .article-wrapper {
                padding: 1rem 0.8rem;
                border-radius: 16px;
            }
            .card-interact {
                padding: 1.2rem;
            }
            .btn-submit {
                width: 100%;
                justify-content: center;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #ff6f3c;
            color: #fff;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(255, 111, 60, 0.3);
            transition: 0.25s;
            z-index: 999;
            border: none;
            cursor: pointer;
        }
        .scroll-top:hover {
            background: #e55a2b;
            transform: translateY(-4px);
        }