* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.7;
            color: #1e1e2f;
            background: #f8f9fc;
            padding: 0 20px;
            max-width: 1280px;
            margin: 0 auto;
        }
        a {
            color: #2a6f97;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #c44536;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        header {
            background: linear-gradient(135deg, #0b1d2e 0%, #1a3a4a 100%);
            color: #f0e9df;
            padding: 18px 30px;
            border-radius: 0 0 24px 24px;
            margin-bottom: 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            position: relative;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 700;
            letter-spacing: 1px;
            color: #f0e9df;
            background: rgba(255, 255, 255, 0.06);
            padding: 6px 18px;
            border-radius: 40px;
            border: 1px solid rgba(255, 215, 150, 0.25);
            transition: 0.25s;
        }
        .my-logo:hover {
            background: rgba(255, 215, 150, 0.15);
            border-color: #f0c27a;
            text-decoration: none;
        }
        .my-logo small {
            font-weight: 300;
            font-size: 0.7rem;
            opacity: 0.7;
            display: block;
            letter-spacing: 2px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: #f0e9df;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 12px;
            border-radius: 8px;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        nav {
            display: flex;
            gap: 8px 20px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            color: #e6dcd0;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 30px;
            transition: 0.2s;
            font-size: 0.95rem;
        }
        nav a:hover {
            background: rgba(255, 215, 150, 0.12);
            color: #f5d6a8;
            text-decoration: none;
        }
        nav a i {
            margin-right: 6px;
            opacity: 0.7;
        }
        .breadcrumb {
            padding: 10px 0 20px 0;
            font-size: 0.9rem;
            color: #5a6a7a;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            list-style: none;
        }
        .breadcrumb li {
            display: inline;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #9aabbb;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2a6f97;
        }
        .breadcrumb .active {
            color: #1e1e2f;
            font-weight: 600;
        }
        main {
            background: #ffffff;
            border-radius: 24px;
            padding: 32px 30px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
            margin-bottom: 30px;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #0b1d2e;
            margin-bottom: 16px;
            line-height: 1.2;
            border-left: 6px solid #c44536;
            padding-left: 22px;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #1a3a4a;
            margin-top: 48px;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 2px solid #e8eef2;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #2a4a5a;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #3a5a6a;
            margin-top: 24px;
            margin-bottom: 8px;
        }
        p {
            margin-bottom: 18px;
            color: #2c3e4e;
        }
        .lead {
            font-size: 1.2rem;
            color: #1a3a4a;
            font-weight: 400;
            background: #f0f4f8;
            padding: 20px 24px;
            border-radius: 16px;
            border-left: 4px solid #c44536;
        }
        .highlight {
            background: #fef7e8;
            padding: 2px 10px;
            border-radius: 6px;
            font-weight: 600;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        .featured-image {
            margin: 28px 0 32px 0;
            border-radius: 16px;
            overflow: hidden;
            background: #eef2f6;
            text-align: center;
        }
        .featured-image img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 10px 16px;
            font-size: 0.9rem;
            color: #5a6a7a;
            background: #f4f7fa;
            font-style: italic;
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 14px;
            margin: 24px 0 30px 0;
        }
        .link-grid a {
            background: #f4f7fc;
            padding: 14px 18px;
            border-radius: 14px;
            font-weight: 500;
            display: flex;
            align-items: center;
            gap: 10px;
            transition: 0.2s;
            border: 1px solid transparent;
            color: #1a3a4a;
        }
        .link-grid a:hover {
            background: #e6edf6;
            border-color: #c4453688;
            text-decoration: none;
            transform: translateY(-2px);
        }
        .link-grid a i {
            color: #c44536;
            font-size: 1.1rem;
        }
        .search-box {
            background: #f0f4f8;
            padding: 22px 26px;
            border-radius: 20px;
            margin: 32px 0;
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            align-items: center;
        }
        .search-box label {
            font-weight: 600;
            color: #1a3a4a;
            font-size: 1.1rem;
        }
        .search-box input {
            flex: 1 1 260px;
            padding: 14px 20px;
            border: none;
            border-radius: 40px;
            background: #ffffff;
            font-size: 1rem;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            outline: none;
            transition: 0.2s;
        }
        .search-box input:focus {
            box-shadow: 0 0 0 3px #c4453650;
        }
        .search-box button {
            background: #1a3a4a;
            color: #fff;
            border: none;
            padding: 14px 32px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-box button:hover {
            background: #c44536;
            transform: scale(1.02);
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 36px 0;
        }
        @media (max-width: 700px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: #f8faff;
            border-radius: 20px;
            padding: 24px 26px;
            border: 1px solid #e4eaf0;
            transition: 0.2s;
        }
        .card:hover {
            border-color: #c4453688;
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.03);
        }
        .card h3 {
            margin-top: 0;
            font-size: 1.3rem;
        }
        .card textarea,
        .card input[type="text"],
        .card input[type="number"] {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #d0d8e0;
            border-radius: 12px;
            font-size: 0.95rem;
            margin: 8px 0 12px 0;
            outline: none;
            transition: 0.2s;
            background: #fff;
        }
        .card textarea:focus,
        .card input:focus {
            border-color: #2a6f97;
            box-shadow: 0 0 0 3px #2a6f9720;
        }
        .card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .card button {
            background: #2a6f97;
            color: #fff;
            border: none;
            padding: 12px 24px;
            border-radius: 40px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .card button:hover {
            background: #1a4a6a;
            transform: translateY(-1px);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #d0d8e0;
            cursor: default;
            margin: 8px 0 14px 0;
        }
        .star-rating .fa-star {
            color: #f5b342;
        }
        .star-rating .fa-star.empty {
            color: #d0d8e0;
        }
        footer {
            background: #0b1d2e;
            color: #d6dce0;
            border-radius: 24px 24px 0 0;
            padding: 36px 30px 28px 30px;
            margin-top: 10px;
        }
        footer a {
            color: #b8cdde;
        }
        footer a:hover {
            color: #f0c27a;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 28px;
        }
        @media (max-width: 700px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
            header {
                flex-direction: column;
                align-items: stretch;
                gap: 12px;
            }
            .nav-toggle {
                display: block;
                align-self: flex-end;
                position: absolute;
                top: 16px;
                right: 18px;
            }
            nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding-top: 10px;
                border-top: 1px solid rgba(255, 255, 255, 0.08);
            }
            nav.open {
                display: flex;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            main {
                padding: 20px 16px;
            }
        }
        @media (min-width: 701px) {
            .nav-toggle {
                display: none !important;
            }
            nav {
                display: flex !important;
            }
        }
        .friend-links {
            padding: 18px 0 14px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            margin-bottom: 18px;
        }
        .friend-links span {
            font-weight: 600;
            color: #e6dcd0;
            margin-right: 18px;
        }
        .friend-links a {
            display: inline-block;
            margin: 4px 16px 4px 0;
            padding: 4px 0;
        }
        .copyright {
            font-size: 0.85rem;
            opacity: 0.75;
            text-align: center;
            padding-top: 14px;
        }
        .badge {
            display: inline-block;
            background: #c44536;
            color: #fff;
            padding: 2px 14px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.5px;
        }
        .section-icon {
            margin-right: 10px;
        }
        blockquote {
            border-left: 4px solid #c44536;
            padding: 14px 20px;
            margin: 20px 0;
            background: #f4f7fa;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #2c3e4e;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 16px;
            margin: 24px 0 30px 0;
        }
        .stat-item {
            background: #f0f4f8;
            border-radius: 16px;
            padding: 18px 16px;
            text-align: center;
        }
        .stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            color: #c44536;
        }
        .stat-item .label {
            font-size: 0.85rem;
            color: #4a5a6a;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .toc {
            background: #f4f7fa;
            border-radius: 16px;
            padding: 18px 24px;
            margin: 20px 0 30px 0;
        }
        .toc ol {
            margin-left: 20px;
            columns: 2 220px;
            column-gap: 30px;
        }
        .toc li {
            margin: 4px 0;
        }
        @media (max-width: 480px) {
            .toc ol {
                columns: 1;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
        }