* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: #e0e0e0;
            background: linear-gradient(135deg, #0a1929 0%, #0c1a2c 50%, #091421 100%);
            background-attachment: fixed;
            max-width: 1600px;
            margin: 0 auto;
            padding: 0 10px;
        }
        h1, h2, h3, h4 { color: #6ab0ff; font-weight: 700; margin-bottom: 1rem; line-height: 1.3; }
        h1 { font-size: 2.8rem; text-align: center; margin-top: 2rem; border-bottom: 3px solid #2a4a7a; padding-bottom: 1rem; }
        h2 { font-size: 2.2rem; margin-top: 2.5rem; border-left: 5px solid #3a6fc5; padding-left: 15px; }
        h3 { font-size: 1.8rem; margin-top: 2rem; color: #8bcbff; }
        h4 { font-size: 1.4rem; margin-top: 1.5rem; color: #aad5ff; }
        p { margin-bottom: 1.5rem; font-size: 1.1rem; text-align: justify; }
        a { color: #5ca8ff; text-decoration: none; transition: color 0.3s ease, text-shadow 0.3s ease; }
        a:hover { color: #ffcc5c; text-shadow: 0 0 8px rgba(255, 204, 92, 0.5); }
        strong, b { color: #ffcc5c; font-weight: 700; }
        em { font-style: italic; color: #b3d9ff; }
        ul, ol { margin-left: 2rem; margin-bottom: 1.5rem; }
        li { margin-bottom: 0.5rem; }
        .site-header {
            background: rgba(12, 26, 44, 0.95);
            backdrop-filter: blur(10px);
            padding: 1rem 2rem;
            border-bottom: 2px solid #1a3a5f;
            position: sticky;
            top: 0;
            z-index: 1000;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.5rem;
            background: linear-gradient(90deg, #5ca8ff, #9d4edd);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            text-decoration: none;
            font-weight: 900;
            letter-spacing: -1px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo:hover { text-shadow: 0 0 15px rgba(93, 168, 255, 0.7); }
        .breadcrumb {
            padding: 1rem 2rem;
            background: rgba(20, 35, 60, 0.8);
            border-radius: 0 0 8px 8px;
            font-size: 0.95rem;
        }
        .breadcrumb a { margin: 0 5px; }
        .breadcrumb .separator { color: #5ca8ff; margin: 0 8px; }
        .main-nav { display: flex; align-items: center; }
        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.8rem;
        }
        .nav-links a {
            color: #b3d9ff;
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 5px;
            transition: all 0.3s ease;
        }
        .nav-links a:hover {
            background: rgba(93, 168, 255, 0.15);
            transform: translateY(-2px);
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #5ca8ff;
            cursor: pointer;
        }
        .search-container {
            margin: 2rem auto;
            max-width: 700px;
            padding: 0 1rem;
        }
        .search-form {
            display: flex;
            box-shadow: 0 5px 20px rgba(0, 30, 60, 0.5);
            border-radius: 50px;
            overflow: hidden;
        }
        .search-input {
            flex-grow: 1;
            padding: 1rem 1.5rem;
            border: none;
            background: rgba(255, 255, 255, 0.1);
            color: white;
            font-size: 1.1rem;
            backdrop-filter: blur(5px);
        }
        .search-input::placeholder { color: #aaa; }
        .search-button {
            padding: 0 2rem;
            background: linear-gradient(90deg, #3a6fc5, #5ca8ff);
            border: none;
            color: white;
            font-weight: bold;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .search-button:hover { background: linear-gradient(90deg, #5ca8ff, #3a6fc5); }
        .content-container {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin-top: 2rem;
        }
        main {
            background: rgba(16, 28, 46, 0.7);
            padding: 2.5rem;
            border-radius: 15px;
            border: 1px solid #2a4a7a;
            box-shadow: 0 10px 30px rgba(0, 20, 40, 0.5);
        }
        aside {
            background: rgba(16, 28, 46, 0.7);
            padding: 1.5rem;
            border-radius: 15px;
            border: 1px solid #2a4a7a;
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .toc-title { margin-bottom: 1rem; color: #ffcc5c; }
        .toc-list { list-style: none; }
        .toc-list li { margin-bottom: 0.8rem; }
        .toc-list a { display: block; padding: 0.5rem; border-radius: 5px; }
        .toc-list a:hover { background: rgba(93, 168, 255, 0.1); }
        .article-image {
            max-width: 100%;
            height: auto;
            border-radius: 10px;
            border: 2px solid #3a6fc5;
            box-shadow: 0 8px 20px rgba(0,0,0,0.5);
            margin: 2rem auto;
            display: block;
            transition: transform 0.4s ease;
        }
        .article-image:hover { transform: scale(1.02); }
        .img-caption {
            text-align: center;
            font-style: italic;
            color: #aaa;
            margin-top: 0.5rem;
            margin-bottom: 2rem;
        }
        .pro-tip, .data-box, .interview-excerpt {
            padding: 1.5rem;
            border-radius: 10px;
            margin: 2rem 0;
            border-left: 6px solid;
        }
        .pro-tip {
            background: rgba(42, 74, 122, 0.3);
            border-left-color: #ffcc5c;
        }
        .data-box {
            background: rgba(58, 111, 197, 0.2);
            border-left-color: #5ca8ff;
        }
        .interview-excerpt {
            background: rgba(157, 78, 221, 0.15);
            border-left-color: #9d4edd;
        }
        .box-title { margin-top: 0; color: inherit; }
        .user-interaction {
            background: rgba(22, 38, 60, 0.8);
            padding: 2rem;
            border-radius: 15px;
            margin: 3rem 0;
            border: 1px solid #3a6fc5;
        }
        .interaction-title { text-align: center; margin-bottom: 1.5rem; }
        .form-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
        }
        .form-group { margin-bottom: 1.5rem; }
        label { display: block; margin-bottom: 0.5rem; color: #b3d9ff; font-weight: 600; }
        input, textarea, select {
            width: 100%;
            padding: 0.8rem 1rem;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid #3a6fc5;
            border-radius: 8px;
            color: white;
            font-size: 1rem;
            transition: border 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #ffcc5c;
            box-shadow: 0 0 0 2px rgba(255, 204, 92, 0.2);
        }
        .rating-stars {
            display: flex;
            gap: 0.5rem;
            direction: rtl;
            justify-content: flex-end;
        }
        .rating-stars input { display: none; }
        .rating-stars label {
            font-size: 2rem;
            color: #555;
            cursor: pointer;
            transition: color 0.2s;
        }
        .rating-stars input:checked ~ label,
        .rating-stars label:hover,
        .rating-stars label:hover ~ label { color: #ffcc5c; }
        .submit-button {
            background: linear-gradient(90deg, #3a6fc5, #5ca8ff);
            color: white;
            border: none;
            padding: 1rem 2rem;
            border-radius: 8px;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: block;
            width: 100%;
            max-width: 200px;
            margin: 1rem auto 0;
        }
        .submit-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(93, 168, 255, 0.4);
        }
        .site-footer {
            background: rgba(10, 20, 35, 0.95);
            margin-top: 4rem;
            padding: 3rem 2rem;
            border-top: 2px solid #1a3a5f;
            text-align: center;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 1.5rem;
            margin-bottom: 2rem;
        }
        .friend-links a {
            background: rgba(42, 74, 122, 0.5);
            padding: 0.7rem 1.5rem;
            border-radius: 30px;
            transition: all 0.3s ease;
        }
        .friend-links a:hover {
            background: rgba(93, 168, 255, 0.3);
            transform: scale(1.05);
        }
        .copyright {
            color: #888;
            font-size: 0.9rem;
            margin-top: 2rem;
            padding-top: 1rem;
            border-top: 1px solid #2a4a7a;
        }
        .update-time {
            color: #ffcc5c;
            font-weight: bold;
            margin-top: 1rem;
        }
        @media (max-width: 1024px) {
            .content-container { grid-template-columns: 1fr; }
            aside { position: static; }
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            .site-header { padding: 1rem; }
            .nav-links {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 100%;
                left: 0;
                width: 100%;
                background: rgba(12, 26, 44, 0.98);
                padding: 1rem;
                border-top: 1px solid #1a3a5f;
            }
            .nav-links.active { display: flex; }
            .hamburger { display: block; }
            .main-nav { order: 1; }
            .search-container { margin: 1rem auto; }
            main, aside { padding: 1.5rem; }
        }
        @media (max-width: 480px) {
            .my-logo { font-size: 2rem; }
            h1 { font-size: 1.8rem; }
            .form-grid { grid-template-columns: 1fr; }
        }