:root {
            --primary: #ff4655;
            --primary-dark: #d43a47;
            --secondary: #00c9ff;
            --dark: #1a1a2e;
            --darker: #0f0f1a;
            --light: #f8f9fa;
            --gray: #6c757d;
            --border-radius: 12px;
            --box-shadow: 0 8px 24px rgba(255, 70, 85, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        * {
            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-color: var(--darker);
            background-image: radial-gradient(circle at 20% 30%, rgba(255, 70, 85, 0.05) 0%, transparent 20%), radial-gradient(circle at 80% 70%, rgba(0, 201, 255, 0.05) 0%, transparent 20%);
            overflow-x: hidden;
        }
        a {
            color: var(--secondary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
            text-decoration: underline;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background-color: rgba(26, 26, 46, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 2px solid var(--primary);
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 0;
        }
        .my-logo {
            font-family: 'Arial Black', sans-serif;
            font-size: 2.2rem;
            font-weight: 900;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -1px;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        }
        .my-logo:hover {
            transform: scale(1.03);
        }
        .breadcrumb {
            padding: 10px 0;
            font-size: 0.9rem;
            color: var(--gray);
            background-color: rgba(26, 26, 46, 0.7);
            margin-bottom: 20px;
        }
        .breadcrumb a {
            color: var(--secondary);
        }
        .breadcrumb span {
            color: var(--light);
        }
        .nav-container {
            display: flex;
            align-items: center;
        }
        .main-nav {
            display: flex;
            gap: 25px;
        }
        .main-nav a {
            color: var(--light);
            font-weight: 600;
            padding: 8px 0;
            position: relative;
            text-decoration: none;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: var(--primary);
            transition: var(--transition);
        }
        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 100%;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: var(--light);
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .search-box {
            margin-left: 25px;
            position: relative;
        }
        .search-box input {
            padding: 10px 15px 10px 40px;
            border-radius: 30px;
            border: 1px solid var(--gray);
            background-color: rgba(255, 255, 255, 0.1);
            color: var(--light);
            width: 220px;
            transition: var(--transition);
        }
        .search-box input:focus {
            outline: none;
            border-color: var(--primary);
            width: 260px;
            box-shadow: var(--box-shadow);
        }
        .search-box i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--gray);
        }
        main {
            padding: 30px 0 60px;
        }
        article {
            background-color: rgba(26, 26, 46, 0.8);
            border-radius: var(--border-radius);
            padding: 40px;
            margin-bottom: 40px;
            box-shadow: var(--box-shadow);
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        h1 {
            font-size: 3.2rem;
            color: var(--light);
            margin-bottom: 25px;
            line-height: 1.2;
            text-align: center;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            padding-bottom: 15px;
            border-bottom: 3px solid var(--primary);
        }
        h2 {
            font-size: 2.2rem;
            color: var(--light);
            margin: 45px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid rgba(255, 70, 85, 0.3);
        }
        h3 {
            font-size: 1.7rem;
            color: #ffcc00;
            margin: 35px 0 15px;
        }
        h4 {
            font-size: 1.3rem;
            color: var(--secondary);
            margin: 25px 0 12px;
        }
        p {
            margin-bottom: 20px;
            text-align: justify;
            font-size: 1.1rem;
        }
        .highlight {
            background-color: rgba(255, 70, 85, 0.1);
            border-left: 4px solid var(--primary);
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 var(--border-radius) var(--border-radius) 0;
        }
        .emoji {
            font-size: 1.3em;
            margin-right: 5px;
        }
        strong {
            color: var(--primary);
            font-weight: 700;
        }
        .featured-image {
            width: 100%;
            max-height: 500px;
            object-fit: cover;
            border-radius: var(--border-radius);
            margin: 30px 0;
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
            border: 2px solid var(--primary);
        }
        .internal-links {
            background-color: rgba(0, 201, 255, 0.08);
            border-radius: var(--border-radius);
            padding: 25px;
            margin: 35px 0;
        }
        .internal-links h3 {
            margin-top: 0;
        }
        .internal-links ul {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 15px;
            list-style: none;
        }
        .internal-links li {
            padding: 10px 15px;
            background-color: rgba(26, 26, 46, 0.7);
            border-radius: 8px;
            transition: var(--transition);
        }
        .internal-links li:hover {
            background-color: rgba(255, 70, 85, 0.2);
            transform: translateX(5px);
        }
        .user-interaction {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
            margin: 50px 0;
        }
        .interaction-box {
            background-color: rgba(26, 26, 46, 0.9);
            border-radius: var(--border-radius);
            padding: 25px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }
        .interaction-box:hover {
            transform: translateY(-5px);
            box-shadow: var(--box-shadow);
        }
        .interaction-box h3 {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-top: 0;
        }
        .interaction-box form {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .interaction-box input,
        .interaction-box textarea,
        .interaction-box select {
            padding: 12px 15px;
            border-radius: 8px;
            border: 1px solid var(--gray);
            background-color: rgba(255, 255, 255, 0.07);
            color: var(--light);
            font-family: inherit;
            transition: var(--transition);
        }
        .interaction-box input:focus,
        .interaction-box textarea:focus,
        .interaction-box select:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 70, 85, 0.2);
        }
        .interaction-box button {
            background: linear-gradient(90deg, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            padding: 14px 25px;
            border-radius: 8px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .interaction-box button:hover {
            background: linear-gradient(90deg, var(--primary-dark), var(--primary));
            transform: scale(1.03);
            box-shadow: 0 5px 15px rgba(255, 70, 85, 0.3);
        }
        .star-rating {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin: 15px 0;
            font-size: 1.8rem;
            color: var(--gray);
        }
        .star-rating i {
            cursor: pointer;
            transition: var(--transition);
        }
        .star-rating i:hover,
        .star-rating i.active {
            color: #ffcc00;
            transform: scale(1.2);
        }
        footer {
            background-color: var(--dark);
            padding: 50px 0 20px;
            border-top: 2px solid var(--primary);
        }
        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h3 {
            color: var(--light);
            margin-bottom: 20px;
            font-size: 1.5rem;
        }
        friend-link {
            display: block;
            padding: 10px 15px;
            background-color: rgba(255, 255, 255, 0.05);
            margin-bottom: 10px;
            border-radius: 8px;
            transition: var(--transition);
        }
        friend-link:hover {
            background-color: rgba(255, 70, 85, 0.2);
            transform: translateX(5px);
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            color: var(--gray);
            font-size: 0.9rem;
        }
        .update-time {
            background-color: rgba(0, 201, 255, 0.1);
            padding: 10px 20px;
            border-radius: var(--border-radius);
            margin: 30px 0;
            display: inline-block;
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            h1 { font-size: 2.7rem; }
            h2 { font-size: 2rem; }
            .main-nav { gap: 15px; }
            .search-box input { width: 180px; }
            .search-box input:focus { width: 220px; }
        }
        @media (max-width: 768px) {
            .hamburger { display: block; }
            .main-nav {
                position: fixed;
                top: 80px;
                left: 0;
                width: 100%;
                background-color: var(--dark);
                flex-direction: column;
                align-items: center;
                padding: 20px 0;
                gap: 0;
                box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
                transform: translateY(-150%);
                opacity: 0;
                transition: var(--transition);
                z-index: 999;
            }
            .main-nav.active {
                transform: translateY(0);
                opacity: 1;
            }
            .main-nav a {
                padding: 15px;
                width: 100%;
                text-align: center;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .search-box {
                margin-left: 15px;
            }
            .search-box input {
                width: 160px;
                padding: 8px 15px 8px 35px;
            }
            .search-box input:focus {
                width: 200px;
            }
            article {
                padding: 25px;
            }
        }
        @media (max-width: 576px) {
            h1 { font-size: 2.2rem; }
            h2 { font-size: 1.8rem; }
            h3 { font-size: 1.5rem; }
            .container { padding: 0 15px; }
            .user-interaction { grid-template-columns: 1fr; }
            .interaction-box { padding: 20px; }
            .header-container { flex-wrap: wrap; }
            .my-logo { font-size: 1.8rem; }
        }
        .content-block {
            margin-bottom: 35px;
            padding-bottom: 25px;
            border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
        }
        .tip {
            background-color: rgba(0, 201, 255, 0.08);
            border-radius: var(--border-radius);
            padding: 20px;
            margin: 25px 0;
            border-left: 4px solid var(--secondary);
        }
        .tip h4 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }