*, *::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: #f8f5f0;
            color: #2c2b28;
            line-height: 1.75;
            padding: 0 1rem;
        }
        a { color: #7a4b3a; text-decoration: underline; transition: color 0.2s; }
        a:hover { color: #a76b55; text-decoration: none; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }
        header {
            background: #fffcf9;
            border-bottom: 2px solid #e8ddd5;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0,0,0,0.04);
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: #5c3d2e;
            text-decoration: none;
            background: linear-gradient(135deg, #7a4b3a, #b8846a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i { font-size: 1.6rem; -webkit-text-fill-color: #7a4b3a; color: #7a4b3a; }
        .my-logo:hover { opacity: 0.85; }
        nav { display: flex; align-items: center; gap: 0.5rem; }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .nav-list li a {
            display: block;
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
            font-weight: 500;
            color: #4d3a2f;
            text-decoration: none;
            border-radius: 40px;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list li a:hover { background: #efe6de; color: #2c1e16; }
        .nav-list li a i { margin-right: 0.35rem; font-size: 0.85rem; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: #5c3d2e;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover { background: #efe6de; }
        .breadcrumb {
            background: #fffcf9;
            padding: 0.6rem 0;
            border-bottom: 1px solid #ede5dd;
            font-size: 0.85rem;
        }
        .breadcrumb ol {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.5rem;
        }
        .breadcrumb ol li { color: #6b5a4e; }
        .breadcrumb ol li+li::before { content: "›"; margin-right: 0.5rem; color: #b59a88; }
        .breadcrumb a { color: #7a4b3a; text-decoration: none; }
        .breadcrumb a:hover { text-decoration: underline; }
        main { padding: 2rem 0 3rem; }
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: #3d2a1e;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            color: #4d3528;
            margin: 2.5rem 0 1rem;
            padding-bottom: 0.4rem;
            border-bottom: 3px solid #e8ddd5;
        }
        h3 {
            font-size: 1.5rem;
            font-weight: 600;
            color: #5c4032;
            margin: 2rem 0 0.8rem;
        }
        h4 {
            font-size: 1.2rem;
            font-weight: 600;
            color: #6b4f3e;
            margin: 1.5rem 0 0.5rem;
        }
        p { margin-bottom: 1.1rem; }
        .content-section { margin-bottom: 2.5rem; }
        .content-card {
            background: #fffcf9;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            margin-bottom: 2rem;
            box-shadow: 0 4px 16px rgba(0,0,0,0.04);
            border: 1px solid #ede5dd;
            transition: box-shadow 0.2s;
        }
        .content-card:hover { box-shadow: 0 8px 28px rgba(0,0,0,0.07); }
        .feature-img {
            margin: 1.5rem 0;
            border-radius: 16px;
            max-width: 100%;
            height: auto;
            box-shadow: 0 4px 20px rgba(0,0,0,0.06);
            border: 1px solid #e8ddd5;
        }
        ul, ol { margin: 0.8rem 0 1.2rem 1.6rem; }
        li { margin-bottom: 0.4rem; }
        blockquote {
            background: #f3ede7;
            border-left: 5px solid #b8846a;
            padding: 1rem 1.5rem;
            margin: 1.2rem 0;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #4d3a2f;
        }
        blockquote cite { display: block; margin-top: 0.5rem; font-style: normal; font-weight: 500; color: #7a4b3a; }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #7a4b3a;
            color: #fff;
            padding: 0.65rem 1.6rem;
            border-radius: 40px;
            border: none;
            font-size: 0.95rem;
            font-weight: 500;
            cursor: pointer;
            text-decoration: none;
            transition: background 0.2s, transform 0.1s;
        }
        .btn:hover { background: #9a6652; color: #fff; transform: translateY(-1px); }
        .btn-outline {
            background: transparent;
            color: #7a4b3a;
            border: 2px solid #7a4b3a;
        }
        .btn-outline:hover { background: #7a4b3a; color: #fff; }
        .form-group { margin-bottom: 1rem; }
        .form-group label { display: block; font-weight: 500; margin-bottom: 0.3rem; color: #4d3a2f; }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 2px solid #e0d5cc;
            border-radius: 12px;
            font-size: 1rem;
            background: #fffcf9;
            transition: border 0.2s;
            font-family: inherit;
        }
        .form-group input:focus, .form-group textarea:focus, .form-group select:focus {
            outline: none;
            border-color: #b8846a;
        }
        .form-group textarea { min-height: 100px; resize: vertical; }
        .star-rating { display: flex; gap: 0.3rem; font-size: 1.6rem; cursor: pointer; }
        .star-rating i { color: #dcc9b8; transition: color 0.15s; }
        .star-rating i.active, .star-rating i:hover { color: #e8a87c; }
        .comment-item {
            background: #f8f3ee;
            padding: 1rem 1.2rem;
            border-radius: 12px;
            margin-bottom: 0.8rem;
            border-left: 3px solid #dcc9b8;
        }
        .comment-item strong { color: #5c4032; }
        .comment-item .comment-date { font-size: 0.8rem; color: #8a7a6e; }
        friend-link {
            display: block;
            background: #f3ede7;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2rem 0 1rem;
            border: 1px solid #e0d5cc;
        }
        friend-link ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1.2rem;
            margin: 0.8rem 0 0;
        }
        friend-link ul li a {
            color: #7a4b3a;
            text-decoration: none;
            font-weight: 500;
            padding: 0.3rem 0.8rem;
            border-radius: 30px;
            background: #fffcf9;
            border: 1px solid #dcc9b8;
            transition: background 0.2s, border-color 0.2s;
        }
        friend-link ul li a:hover { background: #efe6de; border-color: #b8846a; }
        friend-link h3 { margin-top: 0; border-bottom: none; font-size: 1.2rem; }
        footer {
            background: #2c2b28;
            color: #d9cfc5;
            padding: 2rem 1.25rem;
            border-radius: 24px 24px 0 0;
            margin-top: 3rem;
        }
        footer .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.5rem;
        }
        footer a { color: #d9bcaa; }
        footer a:hover { color: #f0e0d0; }
        .copyright { font-size: 0.85rem; opacity: 0.8; margin-top: 1.5rem; text-align: center; width: 100%; }
        .last-updated {
            display: inline-block;
            background: #efe6de;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.8rem;
            color: #5c4032;
            margin-bottom: 1.5rem;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2rem; }
            h2 { font-size: 1.6rem; }
            h3 { font-size: 1.25rem; }
            .content-card { padding: 1.2rem 1.2rem; }
            .header-inner { gap: 0.5rem; }
            .my-logo { font-size: 1.4rem; }
            .hamburger { display: block; }
            .nav-list {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #fffcf9;
                border: 1px solid #ede5dd;
                border-radius: 16px;
                padding: 0.5rem;
                margin-top: 0.5rem;
            }
            .nav-list.open { display: flex; }
            .nav-list li a { padding: 0.6rem 1rem; border-radius: 10px; }
        }
        @media (min-width: 769px) {
            .hamburger { display: none; }
            .nav-list { display: flex !important; }
        }
        .flex-wrap { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
        .gap-2 { gap: 2rem; }
        .mt-2 { margin-top: 2rem; }
        .mb-1 { margin-bottom: 1rem; }
        .text-muted { color: #6b5a4e; font-size: 0.9rem; }
        .highlight-box {
            background: #f0e8e0;
            border-radius: 16px;
            padding: 1.5rem 2rem;
            border-left: 6px solid #b8846a;
            margin: 1.5rem 0;
        }
        .schema-hidden { display: none; }