*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #f8f6f2;
            color: #1e1e1e;
            line-height: 1.75;
            padding: 0;
            margin: 0;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #c0392b;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #922b21;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
            color: #fff;
            padding: 16px 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: 1.9rem;
            font-weight: 800;
            color: #f1c40f;
            text-decoration: none;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(241, 196, 15, 0.3);
            transition: transform 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #f1c40f;
        }
        .my-logo .logo-icon {
            font-size: 2rem;
        }
        .my-logo .logo-sub {
            font-size: 0.7rem;
            font-weight: 400;
            color: #bdc3c7;
            letter-spacing: 1px;
            display: block;
            margin-top: -4px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .main-nav a {
            color: #ecf0f1;
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.92rem;
            transition: background 0.25s, color 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(241, 196, 15, 0.15);
            color: #f1c40f;
            text-decoration: none;
        }
        .main-nav a i {
            margin-right: 6px;
        }
        .breadcrumb {
            background: #fff;
            padding: 10px 0;
            border-bottom: 1px solid #e8e3dc;
            font-size: 0.85rem;
            color: #7f8c8d;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 8px;
            color: #bdc3c7;
            font-size: 1.1rem;
        }
        .breadcrumb a {
            color: #c0392b;
        }
        .breadcrumb .current {
            color: #2c3e50;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #faf6ef 0%, #f0ebe1 100%);
            padding: 50px 0 40px;
            border-bottom: 3px solid #f1c40f;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #1a1a2e;
            line-height: 1.2;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }
        .hero h1 .highlight {
            color: #c0392b;
            background: linear-gradient(120deg, #f1c40f22, #f1c40f44);
            padding: 0 12px;
            border-radius: 4px;
        }
        .hero .subhead {
            font-size: 1.15rem;
            color: #4a4a5a;
            max-width: 760px;
            margin-bottom: 20px;
        }
        .hero .meta-badge {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.9rem;
            color: #5a5a6a;
        }
        .hero .meta-badge span i {
            margin-right: 6px;
            color: #c0392b;
        }
        .page-wrap {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            min-width: 0;
        }
        section {
            margin-bottom: 48px;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #1a1a2e;
            margin: 0 0 18px 0;
            padding-bottom: 12px;
            border-bottom: 4px solid #f1c40f;
            display: inline-block;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #2c3e50;
            margin: 28px 0 14px 0;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #34495e;
            margin: 20px 0 10px 0;
        }
        p {
            margin-bottom: 16px;
            color: #2d2d3a;
        }
        .content-card {
            background: #fff;
            border-radius: 16px;
            padding: 28px 32px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #ede8e0;
            margin-bottom: 24px;
            transition: box-shadow 0.3s;
        }
        .content-card:hover {
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
        }
        .content-card .card-meta {
            font-size: 0.85rem;
            color: #95a5a6;
            margin-bottom: 8px;
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .tip-box {
            background: #fef9e7;
            border-left: 5px solid #f1c40f;
            padding: 16px 22px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .tip-box strong {
            color: #c0392b;
        }
        .insight-box {
            background: #eaf7f0;
            border-left: 5px solid #27ae60;
            padding: 16px 22px;
            border-radius: 0 12px 12px 0;
            margin: 20px 0;
        }
        .highlight-text {
            background: linear-gradient(120deg, #f1c40f22, #f1c40f44);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 4px;
        }
        .feature-img-wrap {
            margin: 28px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .feature-img-wrap img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .feature-img-wrap figcaption {
            background: #fff;
            padding: 12px 20px;
            font-size: 0.85rem;
            color: #7f8c8d;
            border-top: 1px solid #eee;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 22px;
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #ede8e0;
            margin-bottom: 24px;
        }
        .sidebar-card h3 {
            font-size: 1.25rem;
            margin-top: 0;
            margin-bottom: 14px;
            border-bottom: 2px solid #f1c40f;
            padding-bottom: 8px;
            display: inline-block;
        }
        .sidebar-link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-link-list li {
            padding: 8px 0;
            border-bottom: 1px solid #f0ebe3;
        }
        .sidebar-link-list li:last-child {
            border-bottom: none;
        }
        .sidebar-link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 500;
        }
        .sidebar-link-list a i {
            width: 20px;
            color: #c0392b;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            font-size: 0.92rem;
            color: #2c3e50;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #ddd8d0;
            border-radius: 10px;
            font-size: 0.95rem;
            background: #fcfaf7;
            transition: border 0.25s, box-shadow 0.25s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #c0392b;
            box-shadow: 0 0 0 4px rgba(192, 57, 43, 0.08);
        }
        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }
        .btn {
            background: #c0392b;
            color: #fff;
            border: none;
            padding: 12px 30px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #922b21;
            transform: translateY(-1px);
        }
        .btn-secondary {
            background: #2c3e50;
        }
        .btn-secondary:hover {
            background: #1a2a3a;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #ddd8d0;
            transition: color 0.2s, transform 0.1s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f1c40f;
        }
        .star-rating label:hover {
            transform: scale(1.1);
        }
        .comment-list {
            margin-top: 20px;
        }
        .comment-item {
            padding: 16px 0;
            border-bottom: 1px solid #f0ebe3;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: 700;
            color: #1a1a2e;
        }
        .comment-time {
            font-size: 0.8rem;
            color: #95a5a6;
            margin-left: 12px;
        }
        .comment-body {
            margin-top: 6px;
            color: #3a3a4a;
        }
        .site-footer {
            background: #1a1a2e;
            color: #bdc3c7;
            padding: 40px 0 24px;
            border-top: 4px solid #f1c40f;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-grid h4 {
            color: #f1c40f;
            font-size: 1.1rem;
            margin-bottom: 12px;
            border-bottom: 1px solid #2c3e50;
            padding-bottom: 6px;
        }
        .footer-grid p,
        .footer-grid a {
            color: #bdc3c7;
            font-size: 0.9rem;
        }
        .footer-grid a:hover {
            color: #f1c40f;
        }
        friend-link {
            display: block;
            margin: 12px 0;
        }
        friend-link a {
            color: #f1c40f;
            font-weight: 500;
            margin-right: 16px;
        }
        friend-link a:hover {
            color: #fff;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #2c3e50;
            font-size: 0.85rem;
            color: #7f8c8d;
        }
        .copyright strong {
            color: #ecf0f1;
        }
        @media (max-width: 992px) {
            .page-wrap {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .sidebar {
                order: 2;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 16px;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 16px;
                border-radius: 8px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero .subhead {
                font-size: 1rem;
            }
            h2 {
                font-size: 1.6rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .content-card {
                padding: 20px 18px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .breadcrumb ol {
                font-size: 0.8rem;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .container {
                padding: 0 12px;
            }
            .content-card {
                padding: 16px 14px;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .star-rating {
                font-size: 1.5rem;
            }
        }
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 0.6s ease forwards;
        }
        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .schema-hidden {
            display: none;
        }
        .tagline {
            font-style: italic;
            color: #7f8c8d;
            font-size: 0.95rem;
        }
        hr {
            border: none;
            border-top: 2px dashed #e0dad2;
            margin: 32px 0;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 20px 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
        }
        table th {
            background: #1a1a2e;
            color: #f1c40f;
            padding: 10px 14px;
            text-align: left;
            font-weight: 600;
        }
        table td {
            padding: 10px 14px;
            border-bottom: 1px solid #ede8e0;
        }
        table tr:hover td {
            background: #f8f4ee;
        }