*,
        *::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, BlinkMacSystemFont, sans-serif;
            line-height: 1.7;
            color: #1e1e2a;
            background: #f8f7f4;
            padding: 0 1rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        a {
            color: #1a5f7a;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #b54a3a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 650;
            line-height: 1.25;
            color: #16161f;
            letter-spacing: -0.01em;
        }
        h1 {
            font-size: 2.4rem;
            margin: 1.6rem 0 0.8rem;
        }
        h2 {
            font-size: 1.8rem;
            margin: 2rem 0 0.6rem;
            border-bottom: 3px solid #e0d6cc;
            padding-bottom: 0.3rem;
        }
        h3 {
            font-size: 1.35rem;
            margin: 1.6rem 0 0.4rem;
        }
        h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.3rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1rem;
        }
        ul,
        ol {
            margin: 0.6rem 0 1.2rem 1.6rem;
        }
        li {
            margin-bottom: 0.3rem;
        }
        hr {
            border: none;
            border-top: 2px dashed #d6cec4;
            margin: 2rem 0;
        }
        .container {
            background: #ffffff;
            border-radius: 28px;
            padding: 1.6rem 2rem 2.4rem;
            margin: 1.2rem 0 2rem;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.03);
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 0 0.6rem;
            border-bottom: 2px solid #e6ddd3;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.04em;
            background: linear-gradient(145deg, #1a3b4b, #2b5c6f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #b54a3a;
            margin-right: 0.2rem;
        }
        .my-logo:hover {
            opacity: 0.8;
            text-decoration: none;
        }
        nav.main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        nav.main-nav a {
            padding: 0.4rem 0.9rem;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            color: #2c3e4e;
            transition: background 0.2s, color 0.2s;
        }
        nav.main-nav a:hover {
            background: #e6ddd3;
            color: #16161f;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #2c3e4e;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
        }
        .nav-overlay {
            display: none;
        }
        .breadcrumb {
            padding: 0.6rem 0 0.2rem;
            font-size: 0.85rem;
            color: #6b5f54;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb a {
            color: #1a5f7a;
        }
        .breadcrumb span.sep {
            color: #b8aaa0;
        }
        .search-box {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            margin: 1.8rem 0 1.2rem;
            background: #f3f0eb;
            padding: 1rem 1.6rem;
            border-radius: 60px;
            align-items: center;
        }
        .search-box i {
            color: #6b5f54;
            font-size: 1.2rem;
        }
        .search-box input {
            flex: 1;
            min-width: 160px;
            border: none;
            background: transparent;
            font-size: 1rem;
            padding: 0.4rem 0;
            outline: none;
            font-family: inherit;
        }
        .search-box button {
            background: #1a5f7a;
            border: none;
            color: white;
            padding: 0.5rem 1.6rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-box button:hover {
            background: #b54a3a;
        }
        .user-feedback {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin: 2rem 0 1rem;
            padding: 1.6rem 0;
            border-top: 2px solid #e6ddd3;
            border-bottom: 2px solid #e6ddd3;
        }
        .feedback-section {
            flex: 1 1 240px;
        }
        .feedback-section h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .feedback-section textarea,
        .feedback-section input {
            width: 100%;
            padding: 0.6rem 0.8rem;
            border: 1px solid #d6cec4;
            border-radius: 12px;
            font-family: inherit;
            font-size: 0.95rem;
            background: #fcfbf9;
            resize: vertical;
            margin-bottom: 0.4rem;
        }
        .feedback-section textarea:focus,
        .feedback-section input:focus {
            outline: 2px solid #1a5f7a;
            outline-offset: 2px;
        }
        .feedback-section .btn {
            background: #1a5f7a;
            color: white;
            border: none;
            padding: 0.5rem 1.4rem;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: background 0.2s;
            display: inline-block;
        }
        .feedback-section .btn:hover {
            background: #b54a3a;
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.6rem;
            color: #d6cec4;
            cursor: pointer;
            margin: 0.4rem 0;
        }
        .star-rating i.active {
            color: #e8b84b;
        }
        .star-rating i:hover {
            color: #e8b84b;
            transform: scale(1.1);
        }
        friend-link {
            display: block;
            padding: 1.2rem 0 0.6rem;
            border-top: 2px solid #e6ddd3;
            margin-top: 1.6rem;
            font-size: 0.95rem;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.6rem 0.2rem 0;
        }
        friend-link a::after {
            content: " ·";
            color: #b8aaa0;
            margin-left: 0.3rem;
        }
        friend-link a:last-child::after {
            content: "";
        }
        footer {
            padding: 1.2rem 0 2rem;
            text-align: center;
            font-size: 0.85rem;
            color: #6b5f54;
            border-top: 1px solid #e0d6cc;
            margin-top: 1rem;
        }
        footer p {
            margin-bottom: 0.3rem;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.6rem;
            }
            .container {
                padding: 1rem 1rem 1.6rem;
                border-radius: 20px;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            header {
                flex-wrap: wrap;
            }
            .my-logo {
                font-size: 1.6rem;
            }
            .hamburger {
                display: inline-block;
            }
            nav.main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 0.8rem 0 0.4rem;
                gap: 0.2rem;
            }
            nav.main-nav.open {
                display: flex;
            }
            nav.main-nav a {
                width: 100%;
                padding: 0.6rem 0.8rem;
                border-radius: 12px;
            }
            .nav-overlay {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100%;
                background: rgba(0, 0, 0, 0.2);
                z-index: 8;
            }
            .nav-overlay.open {
                display: block;
            }
            .search-box {
                border-radius: 30px;
                padding: 0.8rem 1.2rem;
            }
            .user-feedback {
                flex-direction: column;
                gap: 1.2rem;
            }
            .breadcrumb {
                font-size: 0.78rem;
            }
        }
        @media (min-width: 769px) {
            .hamburger {
                display: none !important;
            }
            nav.main-nav {
                display: flex !important;
            }
        }
        .text-muted {
            color: #6b5f54;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
        }
        .badge {
            display: inline-block;
            background: #e6ddd3;
            padding: 0.1rem 0.8rem;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            color: #2c3e4e;
        }
        .highlight {
            background: #f9f1e7;
            padding: 0.1rem 0.3rem;
            border-radius: 6px;
        }
        .emoji-big {
            font-size: 1.8rem;
            line-height: 1;
        }
        .img-caption {
            font-size: 0.85rem;
            color: #6b5f54;
            margin-top: 0.3rem;
            text-align: center;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1rem 0;
        }
        th,
        td {
            padding: 0.6rem 0.8rem;
            border: 1px solid #e0d6cc;
            text-align: left;
            font-size: 0.95rem;
        }
        th {
            background: #f3f0eb;
            font-weight: 600;
        }
        .quote {
            background: #f9f5f0;
            border-left: 5px solid #1a5f7a;
            padding: 0.8rem 1.4rem;
            margin: 1.2rem 0;
            border-radius: 0 16px 16px 0;
            font-style: italic;
        }