*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f8f6f2;
            color: #1e2a2f;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #c44536;
            text-decoration: underline;
            transition: color 0.2s;
        }
        a:hover {
            color: #982c1f;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.04);
            border-radius: 24px 24px 0 0;
            padding: 0 1.5rem 2rem;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 0 0.8rem;
            border-bottom: 2px solid #eee5dc;
            position: relative;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #c44536, #e07c5e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #c44536;
            font-size: 2rem;
        }
        .my-logo::after {
            content: "🎯";
            font-size: 1.6rem;
            -webkit-text-fill-color: initial;
            margin-left: 0.2rem;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 0.2rem;
        }
        nav a {
            padding: 0.5rem 1rem;
            font-weight: 600;
            font-size: 0.95rem;
            color: #2d3e44;
            text-decoration: none;
            border-radius: 40px;
            transition: background 0.2s, color 0.2s;
        }
        nav a:hover {
            background: #f0e7de;
            color: #c44536;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #2d3e44;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
        }
        .breadcrumb {
            padding: 0.8rem 0 0.2rem;
            font-size: 0.85rem;
            color: #6f7c82;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb a {
            color: #6f7c82;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: #c44536;
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #2d3e44;
            font-weight: 500;
        }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 1.2rem 0 0.4rem;
            color: #1a262b;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 2.4rem 0 0.8rem;
            padding-bottom: 0.3rem;
            border-bottom: 3px solid #f0e7de;
            color: #1a262b;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 1.8rem 0 0.6rem;
            color: #2d3e44;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 1.2rem 0 0.4rem;
            color: #3d535a;
        }
        p {
            margin-bottom: 1.2rem;
            color: #2d3e44;
        }
        .lead {
            font-size: 1.2rem;
            line-height: 1.8;
            color: #3d535a;
            font-weight: 400;
        }
        .highlight {
            background: #fdf6ed;
            padding: 0.1rem 0.3rem;
            border-radius: 4px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 0.2rem;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }
        @media (min-width: 768px) {
            .content-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
            .content-grid .full-width {
                grid-column: 1 / -1;
            }
        }
        .card {
            background: #faf8f5;
            border-radius: 16px;
            padding: 1.5rem;
            border: 1px solid #eee5dc;
            transition: box-shadow 0.25s, transform 0.2s;
        }
        .card:hover {
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
            transform: translateY(-2px);
        }
        .card h4 {
            margin-top: 0;
        }
        .feature-image {
            margin: 2rem 0 1.5rem;
            border-radius: 16px;
            overflow: hidden;
            background: #f0e7de;
        }
        .feature-image figcaption {
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #5a6e76;
            background: #faf8f5;
            border-top: 1px solid #eee5dc;
            font-style: italic;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            color: #2d3e44;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 2px solid #e0d6cc;
            border-radius: 10px;
            font-size: 1rem;
            background: #fff;
            transition: border-color 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            border-color: #c44536;
            outline: none;
            box-shadow: 0 0 0 3px rgba(196, 69, 54, 0.12);
        }
        .btn {
            display: inline-block;
            padding: 0.7rem 1.8rem;
            border: none;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            background: #c44536;
            color: #fff;
            text-decoration: none;
        }
        .btn:hover {
            background: #a83a2c;
            transform: scale(0.98);
        }
        .btn-outline {
            background: transparent;
            color: #c44536;
            border: 2px solid #c44536;
        }
        .btn-outline:hover {
            background: #c44536;
            color: #fff;
        }
        .comment-item {
            background: #faf8f5;
            border-radius: 12px;
            padding: 1rem 1.2rem;
            margin-bottom: 0.8rem;
            border-left: 4px solid #c44536;
        }
        .comment-item strong {
            color: #1a262b;
        }
        .comment-item .date {
            font-size: 0.8rem;
            color: #6f7c82;
        }
        .star-rating {
            display: flex;
            gap: 0.2rem;
            font-size: 1.4rem;
            color: #e0d6cc;
            cursor: pointer;
        }
        .star-rating .fas.fa-star {
            color: #f0a830;
        }
        .star-rating .far.fa-star {
            color: #d4c9be;
        }
        friend-link {
            display: block;
            background: #faf8f5;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            margin: 2rem 0 1rem;
            border: 1px solid #eee5dc;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
            font-weight: 500;
        }
        footer {
            text-align: center;
            padding: 2rem 0 1.5rem;
            border-top: 2px solid #eee5dc;
            margin-top: 2.5rem;
            color: #5a6e76;
            font-size: 0.9rem;
        }
        footer .copyright {
            margin-top: 0.5rem;
            font-weight: 400;
        }
        @media (max-width: 767px) {
            .container {
                padding: 0 0.8rem 1.5rem;
                border-radius: 16px 16px 0 0;
            }
            h1 {
                font-size: 1.9rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            nav a {
                font-size: 0.85rem;
                padding: 0.4rem 0.7rem;
            }
            .hamburger {
                display: block;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #fff;
                padding: 0.8rem 0;
                border-top: 1px solid #eee5dc;
                margin-top: 0.5rem;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 0.7rem 1rem;
                border-radius: 0;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .lead {
                font-size: 1.05rem;
            }
        }
        @media (min-width: 768px) {
            .nav-links {
                display: flex !important;
                flex-wrap: wrap;
            }
            .hamburger {
                display: none !important;
            }
        }
        .text-muted {
            color: #6f7c82;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-between {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 0.5rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
            background: #faf8f5;
            border-radius: 12px;
            overflow: hidden;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #eee5dc;
        }
        th {
            background: #f0e7de;
            font-weight: 700;
            color: #1a262b;
        }
        tr:last-child td {
            border-bottom: none;
        }
        .schema-hidden {
            display: none;
        }
        .section-anchor {
            scroll-margin-top: 1.5rem;
        }