*,
        *::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: #f8f6f0;
            color: #1e2a2f;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #b34a2c;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #7d2f1a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.04);
            border-radius: 24px;
            padding: 1.5rem 2rem 2rem;
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 0 0.8rem;
            border-bottom: 2px solid #e8e0d0;
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #b34a2c, #d17c4a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
            font-family: 'Georgia', 'Times New Roman', serif;
            text-shadow: 0 2px 8px rgba(179, 74, 44, 0.12);
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.85;
        }
        .my-logo small {
            font-size: 0.75rem;
            -webkit-text-fill-color: #6b5b4e;
            color: #6b5b4e;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.2rem;
            flex-wrap: wrap;
        }
        .nav-list li a {
            display: inline-block;
            padding: 0.5rem 1rem;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.9rem;
            color: #2c3e44;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list li a:hover {
            background: #b34a2c15;
            color: #b34a2c;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #2c3e44;
            cursor: pointer;
            padding: 0.2rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #f0ebe4;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.8rem 0 0.4rem;
            font-size: 0.85rem;
            color: #6b5b4e;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #b9aaa0;
        }
        .breadcrumb a {
            color: #6b5b4e;
        }
        .breadcrumb a:hover {
            color: #b34a2c;
        }
        .breadcrumb .active {
            color: #b34a2c;
            font-weight: 500;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin: 1.2rem 0 0.6rem;
            color: #1a262b;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 2.4rem 0 1rem;
            color: #1a262b;
            border-left: 6px solid #b34a2c;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 1.8rem 0 0.8rem;
            color: #2c3e44;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 1.2rem 0 0.5rem;
            color: #3d4f56;
        }
        p {
            margin-bottom: 1.2rem;
            word-spacing: 0.02em;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #3d4f56;
            background: #faf7f2;
            padding: 1.2rem 1.6rem;
            border-radius: 16px;
            border-left: 4px solid #b34a2c;
        }
        strong {
            color: #1a262b;
        }
        .highlight {
            background: #fcf3e8;
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
            font-weight: 600;
        }
        .emoji-big {
            font-size: 1.8rem;
            vertical-align: middle;
            margin-right: 0.3rem;
        }
        .content-area {
            padding: 1rem 0 2rem;
        }
        .content-area section {
            margin-bottom: 2.8rem;
        }
        .feature-figure {
            margin: 2rem 0 2.4rem;
            border-radius: 16px;
            overflow: hidden;
            background: #f5f0ea;
            padding: 0.8rem;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
        }
        .feature-figure img {
            border-radius: 12px;
            width: 100%;
            max-height: 500px;
            object-fit: cover;
        }
        .feature-figure figcaption {
            padding: 0.8rem 0.4rem 0.2rem;
            font-size: 0.9rem;
            color: #6b5b4e;
            text-align: center;
            font-style: italic;
        }
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.6rem;
            margin: 1.6rem 0 2rem;
        }
        .strategy-card {
            background: #faf7f2;
            border-radius: 16px;
            padding: 1.4rem 1.4rem 1.6rem;
            border: 1px solid #ede6dc;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .strategy-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.06);
        }
        .strategy-card i {
            color: #b34a2c;
            font-size: 1.6rem;
            margin-bottom: 0.6rem;
            display: inline-block;
        }
        .strategy-card h4 {
            margin-top: 0.2rem;
            margin-bottom: 0.4rem;
        }
        .rules-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.6rem 0 2rem;
            font-size: 0.95rem;
            background: #fcfaf7;
            border-radius: 12px;
            overflow: hidden;
        }
        .rules-table th,
        .rules-table td {
            padding: 0.9rem 1.2rem;
            text-align: left;
            border-bottom: 1px solid #e8e0d0;
        }
        .rules-table th {
            background: #b34a2c;
            color: #fff;
            font-weight: 600;
        }
        .rules-table tr:last-child td {
            border-bottom: none;
        }
        .rules-table tr:hover td {
            background: #f5ede6;
        }
        .search-box {
            background: #faf7f2;
            border-radius: 60px;
            padding: 0.3rem 0.3rem 0.3rem 1.6rem;
            display: flex;
            max-width: 480px;
            border: 1px solid #e8e0d0;
            transition: border 0.2s, box-shadow 0.2s;
            margin: 1.6rem 0 2rem;
        }
        .search-box:focus-within {
            border-color: #b34a2c;
            box-shadow: 0 0 0 3px #b34a2c20;
        }
        .search-box input {
            border: none;
            background: transparent;
            flex: 1;
            padding: 0.7rem 0;
            font-size: 1rem;
            outline: none;
            color: #1e2a2f;
        }
        .search-box input::placeholder {
            color: #9b8a7a;
        }
        .search-box button {
            background: #b34a2c;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0.7rem 1.8rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            font-size: 0.95rem;
        }
        .search-box button:hover {
            background: #8f3a22;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2rem 0 1.6rem;
        }
        .feedback-card {
            background: #faf7f2;
            border-radius: 18px;
            padding: 1.6rem 1.8rem 2rem;
            border: 1px solid #ede6dc;
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .feedback-card label {
            font-weight: 500;
            display: block;
            margin: 0.8rem 0 0.3rem;
            color: #2c3e44;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #ddd6cc;
            border-radius: 12px;
            font-size: 0.95rem;
            background: #fff;
            transition: border 0.2s;
            font-family: inherit;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #b34a2c;
            outline: none;
            box-shadow: 0 0 0 3px #b34a2c15;
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card .btn-submit {
            background: #b34a2c;
            color: #fff;
            border: none;
            border-radius: 40px;
            padding: 0.7rem 2rem;
            font-weight: 600;
            cursor: pointer;
            margin-top: 1rem;
            transition: background 0.2s;
            font-size: 1rem;
        }
        .feedback-card .btn-submit:hover {
            background: #8f3a22;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #ddd6cc;
            cursor: pointer;
            margin: 0.4rem 0 0.6rem;
        }
        .star-rating i {
            transition: color 0.15s;
        }
        .star-rating i.active,
        .star-rating i:hover,
        .star-rating i:hover~i {
            color: #f5b342;
        }
        .friend-links-section {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #e8e0d0;
        }
        friend-link {
            display: block;
            font-style: normal;
            padding: 0.6rem 0;
        }
        friend-link a {
            display: inline-block;
            padding: 0.3rem 0.6rem;
            margin: 0.2rem 0.2rem;
            background: #f5f0ea;
            border-radius: 30px;
            font-size: 0.9rem;
            transition: background 0.2s;
        }
        friend-link a:hover {
            background: #b34a2c15;
            text-decoration: none;
        }
        .site-footer {
            padding: 1.6rem 0 1rem;
            font-size: 0.9rem;
            color: #6b5b4e;
            text-align: center;
            border-top: 1px solid #e8e0d0;
            margin-top: 2rem;
        }
        .site-footer small {
            display: block;
            margin-top: 0.4rem;
        }
        @media (max-width: 820px) {
            .container {
                padding: 1rem 1.2rem 1.6rem;
                border-radius: 16px;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #fff;
                padding: 1rem 0 0.6rem;
                border-top: 1px solid #e8e0d0;
                margin-top: 0.6rem;
            }
            .nav-list li a {
                padding: 0.6rem 1rem;
                display: block;
            }
            .hamburger {
                display: inline-block;
            }
            #nav-toggle:checked~.nav-list {
                display: flex;
            }
            .site-header {
                flex-wrap: wrap;
            }
            .nav-wrapper {
                order: 3;
                width: 100%;
            }
            #nav-toggle:checked~.nav-wrapper .nav-list {
                display: flex;
            }
            .search-box {
                max-width: 100%;
            }
            .rules-table {
                font-size: 0.85rem;
            }
            .rules-table th,
            .rules-table td {
                padding: 0.6rem 0.8rem;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.4rem;
            }
            .container {
                padding: 0.8rem 0.8rem 1.2rem;
                border-radius: 12px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.25rem;
                padding-left: 0.6rem;
                border-left-width: 4px;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .strategy-grid {
                grid-template-columns: 1fr;
            }
            .feedback-card {
                padding: 1.2rem;
            }
            .lead {
                font-size: 1rem;
                padding: 1rem;
            }
        }
        .last-updated {
            display: inline-block;
            background: #f0ebe4;
            padding: 0.3rem 1rem;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #6b5b4e;
            margin: 1rem 0 0.4rem;
        }
        .text-muted {
            color: #6b5b4e;
        }
        .mt-2 {
            margin-top: 2rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-between {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }
        .breadcrumb-list {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.8rem 0 0.4rem;
            font-size: 0.85rem;
            color: #6b5b4e;
        }
        .breadcrumb-list li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #b9aaa0;
        }
        .breadcrumb-list a {
            color: #6b5b4e;
        }
        .breadcrumb-list a:hover {
            color: #b34a2c;
        }
        .breadcrumb-list .active {
            color: #b34a2c;
            font-weight: 500;
        }