* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.8;
            color: #333;
            background-color: #f9f9ff;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #ff3366;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1 { font-size: 2.8rem; margin-bottom: 1.5rem; color: #0a2463; }
        h2 { font-size: 2.2rem; margin: 2.5rem 0 1rem; color: #1a5fb4; border-bottom: 3px solid #ffde59; padding-bottom: 0.5rem; }
        h3 { font-size: 1.8rem; margin: 2rem 0 0.8rem; color: #2d7dd2; }
        h4 { font-size: 1.4rem; margin: 1.5rem 0 0.6rem; color: #4a9ce6; }
        p { margin-bottom: 1.5rem; text-align: justify; }
        .highlight {
            background-color: #fffacd;
            padding: 1.5rem;
            border-left: 5px solid #ffaa00;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        .site-header {
            background: linear-gradient(135deg, #0a2463 0%, #1a5fb4 100%);
            color: white;
            padding: 1rem 2rem;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1400px;
            margin: 0 auto;
        }
        .my-logo {
            font-family: 'Comic Sans MS', cursive, sans-serif;
            font-size: 2.5rem;
            font-weight: bold;
            color: #ffde59;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
        }
        .my-logo a { color: inherit; }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            color: white;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 20px;
        }
        .main-nav a:hover, .main-nav a.active {
            background-color: #ff3366;
            color: white;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: white;
            cursor: pointer;
        }
        .breadcrumb {
            background-color: #e6f2ff;
            padding: 0.8rem 2rem;
            font-size: 0.9rem;
            border-bottom: 1px solid #ccd9ff;
        }
        .breadcrumb a { color: #555; }
        .breadcrumb a:hover { color: #ff3366; }
        .container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
        }
        .content-main {
            background: white;
            padding: 2.5rem;
            border-radius: 12px;
            box-shadow: 0 6px 20px rgba(0,0,0,0.08);
        }
        .sidebar {
            background: #f0f7ff;
            padding: 1.5rem;
            border-radius: 12px;
            height: fit-content;
            border: 1px solid #d1e3ff;
        }
        .functional-box {
            background: white;
            border-radius: 10px;
            padding: 1.5rem;
            margin-bottom: 2rem;
            box-shadow: 0 4px 10px rgba(0,0,0,0.05);
            border-top: 4px solid #4a9ce6;
        }
        .functional-box h3 {
            margin-top: 0;
            color: #0a2463;
        }
        .functional-box form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }
        .functional-box input, .functional-box textarea, .functional-box select {
            padding: 0.8rem;
            border: 1px solid #ccc;
            border-radius: 6px;
            font-family: inherit;
        }
        .functional-box button {
            background: linear-gradient(to right, #ff3366, #ff6b35);
            color: white;
            border: none;
            padding: 0.9rem;
            border-radius: 6px;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.2s;
        }
        .functional-box button:hover {
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #ffaa00;
            cursor: pointer;
            justify-content: center;
        }
        .star-rating i:hover {
            color: #ffcc00;
        }
        .internal-links {
            background: #e6f7ff;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
        }
        .internal-links ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 0.8rem;
        }
        .internal-links li {
            padding: 0.5rem 0;
            border-bottom: 1px dashed #a3d5ff;
        }
        .article-img {
            float: right;
            margin: 0 0 1.5rem 2rem;
            max-width: 50%;
            border-radius: 10px;
            box-shadow: 0 8px 16px rgba(0,0,0,0.1);
            border: 5px solid white;
        }
        emoji {
            font-size: 1.2em;
            margin-right: 0.3rem;
        }
        strong {
            color: #d8345f;
            font-weight: 700;
        }
        .update-time {
            text-align: right;
            font-style: italic;
            color: #666;
            font-size: 0.9rem;
            margin-top: 3rem;
            padding-top: 1rem;
            border-top: 1px solid #eee;
        }
        .site-footer {
            background: #0a2463;
            color: #ccd9ff;
            padding: 3rem 2rem 1.5rem;
            margin-top: 4rem;
        }
        .footer-container {
            max-width: 1400px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }
        .friend-links {
            background: #1a5fb4;
            padding: 1rem;
            border-radius: 8px;
        }
        friend-link {
            display: inline-block;
            background: #2d7dd2;
            color: white;
            padding: 0.5rem 1rem;
            margin: 0.3rem;
            border-radius: 20px;
            font-size: 0.9rem;
        }
        friend-link a { color: white; }
        .copyright {
            text-align: center;
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid #2d7dd2;
            font-size: 0.9rem;
            color: #a3d5ff;
        }
        @media (max-width: 1024px) {
            .container {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
            h1 { font-size: 2.4rem; }
            h2 { font-size: 2rem; }
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .main-nav ul {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a5fb4;
                position: absolute;
                top: 100%;
                left: 0;
                padding: 1rem;
                border-top: 1px solid #2d7dd2;
            }
            .main-nav.active ul {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .article-img {
                float: none;
                margin: 1.5rem auto;
                max-width: 100%;
            }
            .internal-links ul {
                grid-template-columns: 1fr;
            }
        }