*,
        *::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, 'Helvetica Neue', sans-serif;
            background: #f8f7f2;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #b8621e;
            text-decoration: underline;
            transition: color 0.2s;
        }
        a:hover {
            color: #7a3e0e;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            color: #16212e;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #b8621e;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #b8621e;
            padding-left: 1rem;
        }
        h3 {
            font-size: 1.35rem;
            font-weight: 600;
        }
        h4 {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2e435a;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .site-header {
            background: #1e2a3a;
            color: #f8f7f2;
            padding: 0.8rem 0;
            border-bottom: 4px solid #b8621e;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 0.5rem 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: 1px;
            color: #f8f7f2;
            text-decoration: none;
            background: #b8621e;
            padding: 0.2rem 1rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .my-logo:hover {
            background: #9e5519;
            color: #fff;
        }
        .my-logo span {
            font-weight: 300;
            color: #f0d5b0;
        }
        .main-nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #f0d5b0;
            text-decoration: none;
            padding: 0.4rem 0.8rem;
            border-radius: 4px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            background: #b8621e;
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #f0d5b0;
            color: #f0d5b0;
            font-size: 1.5rem;
            padding: 0.3rem 0.7rem;
            border-radius: 4px;
            cursor: pointer;
        }
        .nav-toggle:hover {
            background: #b8621e;
            border-color: #b8621e;
            color: #fff;
        }
        .breadcrumb {
            background: #eae7de;
            padding: 0.6rem 1rem;
            border-radius: 6px;
            margin: 1rem 0;
            font-size: 0.9rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem;
        }
        .breadcrumb a {
            color: #1e2a3a;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .sep {
            margin: 0 0.3rem;
            color: #888;
        }
        .hero-img {
            border-radius: 12px;
            margin: 1.5rem 0;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .search-box {
            background: #eae7de;
            padding: 1.2rem 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
        }
        .search-box label {
            font-weight: 600;
            font-size: 1.1rem;
        }
        .search-box form {
            display: flex;
            flex: 1;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .search-box input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.6rem 1rem;
            border: 2px solid #ccc;
            border-radius: 6px;
            font-size: 1rem;
            background: #fff;
        }
        .search-box input[type="text"]:focus {
            border-color: #b8621e;
            outline: none;
        }
        .search-box button {
            background: #1e2a3a;
            color: #f8f7f2;
            border: none;
            padding: 0.6rem 1.4rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .search-box button:hover {
            background: #b8621e;
        }
        .user-feedback {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .feedback-card {
            background: #f1efe8;
            padding: 1.5rem;
            border-radius: 12px;
            border: 1px solid #ddd8ce;
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 0.8rem;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 0.6rem 1rem;
            border: 2px solid #d0cbc0;
            border-radius: 6px;
            font-size: 1rem;
            background: #fff;
            width: 100%;
        }
        .feedback-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #b8621e;
            outline: none;
        }
        .feedback-card button {
            background: #b8621e;
            color: #fff;
            border: none;
            padding: 0.6rem 1.2rem;
            border-radius: 6px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            align-self: flex-start;
        }
        .feedback-card button:hover {
            background: #9e5519;
        }
        .star-rating {
            display: flex;
            gap: 0.2rem;
            font-size: 1.6rem;
            color: #d0cbc0;
            cursor: pointer;
        }
        .star-rating .star.active {
            color: #f5b342;
        }
        .content-section {
            margin: 2.5rem 0;
            padding: 1.5rem 0;
            border-bottom: 1px solid #e0dbd0;
        }
        .content-section:last-of-type {
            border-bottom: none;
        }
        .quote-block {
            background: #eae7de;
            border-left: 6px solid #b8621e;
            padding: 1.2rem 1.8rem;
            margin: 1.5rem 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
        }
        .quote-block cite {
            display: block;
            margin-top: 0.5rem;
            font-style: normal;
            font-weight: 600;
            color: #2e435a;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stat-card {
            background: #fff;
            padding: 1.2rem;
            border-radius: 10px;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.06);
            border: 1px solid #eae7de;
        }
        .stat-card .number {
            font-size: 2.2rem;
            font-weight: 800;
            color: #b8621e;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: #5a6a7a;
        }
        .tip-box {
            background: #d9e6d5;
            border-left: 6px solid #3a7a3a;
            padding: 1rem 1.5rem;
            border-radius: 0 8px 8px 0;
            margin: 1.2rem 0;
        }
        friend-link {
            display: block;
            background: #1e2a3a;
            color: #f0d5b0;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0 1rem;
        }
        friend-link a {
            color: #f5c58a;
            text-decoration: none;
            font-weight: 500;
        }
        friend-link a:hover {
            text-decoration: underline;
            color: #ffd9a0;
        }
        friend-link .fl-head {
            font-weight: 700;
            font-size: 1.1rem;
            margin-bottom: 0.8rem;
            color: #fff;
            letter-spacing: 0.5px;
        }
        friend-link .fl-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
        }
        .site-footer {
            background: #16212e;
            color: #c5c9ce;
            padding: 2rem 0;
            margin-top: 2rem;
            border-top: 4px solid #b8621e;
            text-align: center;
        }
        .site-footer a {
            color: #f0d5b0;
        }
        .site-footer a:hover {
            color: #ffd9a0;
        }
        .site-footer .copyright {
            margin-top: 1rem;
            font-size: 0.9rem;
            border-top: 1px solid #2e435a;
            padding-top: 1rem;
        }
        .toc {
            background: #f1efe8;
            padding: 1.2rem 1.8rem;
            border-radius: 10px;
            margin: 1.5rem 0;
            border: 1px solid #ddd8ce;
        }
        .toc strong {
            font-size: 1.1rem;
        }
        .toc ul {
            list-style: none;
            padding-left: 0;
            margin-top: 0.5rem;
            columns: 2;
            column-gap: 2rem;
        }
        .toc li {
            margin-bottom: 0.3rem;
        }
        .toc a {
            text-decoration: none;
        }
        .toc a:hover {
            text-decoration: underline;
        }
        @media (max-width: 768px) {
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .header-inner {
                flex-direction: row;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #1e2a3a;
                padding: 0.5rem 0;
                border-top: 2px solid #b8621e;
                margin-top: 0.5rem;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 0.6rem 1rem;
                border-bottom: 1px solid #2e435a;
            }
            .nav-toggle {
                display: block;
            }
            .user-feedback {
                grid-template-columns: 1fr;
            }
            .toc ul {
                columns: 1;
            }
            .search-box form {
                flex-direction: column;
            }
            .search-box input[type="text"] {
                min-width: auto;
            }
            .hero-img {
                max-height: 240px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            body {
                padding: 0 0.6rem;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .my-logo {
                font-size: 1.3rem;
                padding: 0.2rem 0.7rem;
            }
            .breadcrumb {
                font-size: 0.8rem;
                padding: 0.4rem 0.8rem;
            }
        }
        @media print {
            .site-header {
                position: static;
            }
            .search-box,
            .user-feedback,
            .nav-toggle,
            .main-nav {
                display: none !important;
            }
            .site-footer {
                break-inside: avoid;
            }
        }