:root {
            --primary-dark: #1a1a2e;
            --primary-accent: #00adb5;
            --secondary-accent: #ff2e63;
            --neutral-light: #eeeeee;
            --neutral-mid: #393e46;
            --font-heading: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            --font-body: 'Helvetica Neue', Arial, sans-serif;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-body);
            line-height: 1.7;
            color: var(--neutral-light);
            background: linear-gradient(135deg, var(--primary-dark) 0%, #16213e 100%);
            background-attachment: fixed;
            max-width: 100vw;
            overflow-x: hidden;
        }
        a {
            color: var(--primary-accent);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--secondary-accent);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background-color: rgba(26, 26, 46, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 1rem 0;
            border-bottom: 2px solid var(--primary-accent);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo a {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(90deg, var(--primary-accent), var(--secondary-accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .my-logo i {
            font-size: 2rem;
            color: var(--secondary-accent);
        }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 2rem;
        }
        .main-nav a {
            font-weight: 600;
            padding: 0.5rem 0.8rem;
            border-radius: 4px;
        }
        .main-nav a:hover {
            background-color: rgba(0, 173, 181, 0.1);
            text-decoration: none;
        }
        .hamburger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 5px;
        }
        .hamburger span {
            width: 25px;
            height: 3px;
            background-color: var(--neutral-light);
            border-radius: 2px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }
        .breadcrumb {
            padding: 1rem 0;
            font-size: 0.9rem;
            color: #aaa;
        }
        .breadcrumb a {
            color: #aaa;
        }
        .breadcrumb a:hover {
            color: var(--primary-accent);
        }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 3rem;
            padding: 2rem 0;
        }
        article {
            background: rgba(57, 62, 70, 0.7);
            border-radius: 12px;
            padding: 2.5rem;
            box-shadow: var(--shadow);
        }
        .sidebar {
            background: rgba(57, 62, 70, 0.7);
            border-radius: 12px;
            padding: 1.5rem;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        h1, h2, h3, h4 {
            font-family: var(--font-heading);
            color: var(--neutral-light);
            margin-top: 2rem;
            margin-bottom: 1rem;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            border-left: 5px solid var(--secondary-accent);
            padding-left: 1rem;
            margin-top: 0;
        }
        h2 {
            font-size: 2rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px dashed var(--primary-accent);
        }
        h3 {
            font-size: 1.5rem;
            color: var(--primary-accent);
        }
        h4 {
            font-size: 1.2rem;
            color: #ccc;
        }
        p {
            margin-bottom: 1.5rem;
            text-align: justify;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 300;
            color: #ddd;
            background: rgba(0, 173, 181, 0.05);
            padding: 1.5rem;
            border-radius: 8px;
            border-left: 4px solid var(--primary-accent);
        }
        emoji {
            font-size: 1.2em;
            margin-right: 0.3em;
        }
        strong {
            color: var(--secondary-accent);
            font-weight: 700;
        }
        .highlight-box {
            background: linear-gradient(145deg, rgba(255, 46, 99, 0.1), rgba(0, 173, 181, 0.1));
            border-left: 4px solid var(--secondary-accent);
            padding: 1.5rem;
            margin: 2rem 0;
            border-radius: 0 8px 8px 0;
        }
        figure {
            margin: 2.5rem auto;
            text-align: center;
            max-width: 800px;
        }
        figure img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
            border: 2px solid var(--neutral-mid);
            transition: var(--transition);
        }
        figure img:hover {
            transform: scale(1.01);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
        }
        figcaption {
            font-style: italic;
            color: #aaa;
            margin-top: 0.8rem;
            font-size: 0.9rem;
        }
        .interactive-module {
            background: rgba(26, 26, 46, 0.8);
            border-radius: 10px;
            padding: 2rem;
            margin: 3rem 0;
            border: 1px solid var(--neutral-mid);
        }
        .module-title {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 1.5rem;
        }
        .module-title i {
            color: var(--secondary-accent);
            font-size: 1.5rem;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        input, textarea, select {
            padding: 0.8rem 1rem;
            border-radius: 6px;
            border: 1px solid var(--neutral-mid);
            background-color: rgba(255, 255, 255, 0.05);
            color: var(--neutral-light);
            font-family: var(--font-body);
            font-size: 1rem;
            transition: var(--transition);
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: var(--primary-accent);
            box-shadow: 0 0 0 2px rgba(0, 173, 181, 0.3);
        }
        button {
            background: linear-gradient(90deg, var(--primary-accent), #0097a7);
            color: white;
            border: none;
            padding: 1rem 1.5rem;
            border-radius: 6px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        button:hover {
            background: linear-gradient(90deg, var(--secondary-accent), #d81b60);
            transform: translateY(-3px);
            box-shadow: 0 7px 15px rgba(255, 46, 99, 0.4);
        }
        .star-rating {
            display: flex;
            gap: 5px;
            font-size: 1.8rem;
            color: gold;
            cursor: pointer;
            margin: 1rem 0;
        }
        .star-rating i {
            transition: var(--transition);
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: gold;
            transform: scale(1.2);
        }
        .site-footer {
            background-color: var(--primary-dark);
            margin-top: 4rem;
            padding: 3rem 0 1.5rem;
            border-top: 2px solid var(--neutral-mid);
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            gap: 2rem;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.03);
            padding: 1.5rem;
            border-radius: 8px;
            margin-bottom: 1.5rem;
        }
        friend-link h3 {
            margin-top: 0;
        }
        .friend-links {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1rem;
        }
        .friend-links a {
            display: block;
            padding: 0.5rem;
            border-radius: 4px;
            background: rgba(0, 0, 0, 0.2);
        }
        .friend-links a:hover {
            background: rgba(0, 173, 181, 0.2);
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--neutral-mid);
            color: #888;
            font-size: 0.9rem;
        }
        .update-time {
            color: var(--primary-accent);
            font-weight: 600;
        }
        @media (max-width: 992px) {
            .main-content {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 768px) {
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: rgba(26, 26, 46, 0.98);
                padding: 1rem;
                transform: translateY(-150%);
                opacity: 0;
                transition: transform 0.4s ease, opacity 0.3s ease;
                box-shadow: 0 10px 20px rgba(0,0,0,0.3);
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
            }
            .main-nav ul {
                flex-direction: column;
                gap: 0;
            }
            .main-nav li {
                width: 100%;
            }
            .main-nav a {
                display: block;
                padding: 1rem;
                border-bottom: 1px solid rgba(255,255,255,0.05);
            }
            .hamburger {
                display: flex;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            article, .sidebar {
                padding: 1.5rem;
            }
        }