*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: 'Segoe UI', 'Roboto', system-ui, -apple-system, sans-serif;
            background: #0a0e17;
            color: #e8eef5;
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a { color: #8ab4f8; text-decoration: none; transition: color 0.2s ease; }
        a:hover { color: #b6d4ff; text-decoration: underline; }
        img { max-width: 100%; height: auto; display: block; border-radius: 12px; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: #f0f6ff; margin-top: 1.8em; margin-bottom: 0.6em; }
        h1 { font-size: 2.6rem; margin-top: 0.4em; }
        h2 { font-size: 2rem; border-left: 5px solid #f0b429; padding-left: 0.8rem; }
        h3 { font-size: 1.5rem; color: #d4e1f5; }
        h4 { font-size: 1.2rem; color: #b8cbe0; }
        p { margin-bottom: 1.25rem; }
        ul, ol { margin-bottom: 1.25rem; padding-left: 1.8rem; }
        li { margin-bottom: 0.5rem; }
        strong { color: #f0b429; font-weight: 700; }
        em { color: #9bb8e0; font-style: italic; }
        blockquote {
            border-left: 4px solid #f0b429;
            background: #141e2e;
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 10px 10px 0;
            font-style: italic;
            color: #c8d8f0;
        }
        hr { border: none; height: 2px; background: linear-gradient(90deg, #f0b429, #2a3a5a); margin: 2.5rem 0; }
        .wrapper { max-width: 1200px; margin: 0 auto; padding: 0 1.2rem; flex: 1; }
        .content-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
        header {
            background: linear-gradient(135deg, #0f1a2b 0%, #1a2a45 100%);
            border-bottom: 2px solid #2a3a5a;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(0,0,0,0.6);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.2rem;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            background: linear-gradient(135deg, #f0b429, #f5d78e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo i { -webkit-text-fill-color: #f0b429; font-size: 1.8rem; }
        .my-logo:hover { text-decoration: none; opacity: 0.9; }
        nav.main-nav { display: flex; align-items: center; gap: 1.8rem; }
        nav.main-nav a {
            color: #c8d8f0;
            font-weight: 500;
            font-size: 0.95rem;
            position: relative;
            padding: 0.3rem 0;
        }
        nav.main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: #f0b429;
            transition: width 0.25s ease;
        }
        nav.main-nav a:hover::after { width: 100%; }
        nav.main-nav a:hover { text-decoration: none; color: #f0b429; }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #f0b429;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover { background: #1a2a45; }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.4rem 0.8rem;
            font-size: 0.9rem;
            padding: 1rem 0 0.2rem 0;
            color: #8aa0c0;
        }
        .breadcrumb a { color: #8ab4f8; }
        .breadcrumb a:hover { color: #f0b429; text-decoration: none; }
        .breadcrumb span { color: #5a7a9a; }
        .section-card {
            background: #111d2e;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin-bottom: 2rem;
            border: 1px solid #1e3050;
            transition: box-shadow 0.3s ease;
        }
        .section-card:hover { box-shadow: 0 8px 30px rgba(240, 180, 41, 0.06); }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 1.5rem;
            margin: 1.5rem 0;
        }
        .feature-item {
            background: #142236;
            padding: 1.4rem 1.2rem;
            border-radius: 12px;
            border-left: 4px solid #f0b429;
            transition: transform 0.2s ease;
        }
        .feature-item:hover { transform: translateY(-3px); }
        .feature-item i { color: #f0b429; font-size: 1.8rem; margin-bottom: 0.6rem; }
        .form-group { margin-bottom: 1.2rem; }
        .form-group label { display: block; font-weight: 600; margin-bottom: 0.4rem; color: #c8d8f0; }
        .form-group input, .form-group textarea, .form-group select {
            width: 100%;
            padding: 0.8rem 1rem;
            background: #0a1424;
            border: 1px solid #2a4050;
            border-radius: 8px;
            color: #e8eef5;
            font-size: 1rem;
            transition: border 0.2s ease;
        }
        .form-group input:focus, .form-group textarea:focus { border-color: #f0b429; outline: none; }
        .form-group textarea { min-height: 100px; resize: vertical; }
        .btn {
            display: inline-block;
            padding: 0.7rem 1.8rem;
            border: none;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.25s ease;
            background: #f0b429;
            color: #0a0e17;
        }
        .btn:hover { background: #f5c84a; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(240,180,41,0.3); }
        .btn-outline {
            background: transparent;
            border: 2px solid #f0b429;
            color: #f0b429;
        }
        .btn-outline:hover { background: #f0b429; color: #0a0e17; }
        .comment-item {
            background: #0f1b2c;
            border-radius: 10px;
            padding: 1rem 1.2rem;
            margin-bottom: 0.8rem;
            border-left: 3px solid #2a4050;
        }
        .comment-item strong { color: #f0b429; }
        .comment-item .date { font-size: 0.8rem; color: #7a9ab5; }
        .star-rating {
            display: flex;
            gap: 0.4rem;
            font-size: 1.8rem;
            cursor: pointer;
            color: #3a5060;
            transition: color 0.2s;
        }
        .star-rating i.active { color: #f0b429; }
        .star-rating i:hover, .star-rating i.hover { color: #f5d78e; }
        friend-link {
            display: block;
            padding: 1.2rem 1.5rem;
            background: #0f1b2c;
            border-radius: 12px;
            border: 1px solid #1e3050;
            margin: 0.5rem 0;
            font-weight: 500;
            transition: background 0.2s;
        }
        friend-link:hover { background: #162840; }
        friend-link a { color: #8ab4f8; }
        friend-link a:hover { color: #f0b429; text-decoration: none; }
        footer {
            background: #0a101e;
            border-top: 2px solid #1a2a45;
            padding: 2.5rem 1.2rem 1.5rem;
            margin-top: 3rem;
        }
        footer .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
        }
        footer h4 { color: #f0b429; margin-top: 0; }
        footer a { color: #8ab4f8; display: block; margin-bottom: 0.4rem; }
        footer .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #1a2a45;
            font-size: 0.9rem;
            color: #6a8aaa;
        }
        @media (max-width: 768px) {
            h1 { font-size: 1.8rem; }
            h2 { font-size: 1.5rem; }
            .header-inner { gap: 0.5rem; }
            .my-logo { font-size: 1.3rem; }
            nav.main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 1rem 0;
                gap: 0.8rem;
                background: #0f1a2b;
                border-top: 1px solid #1e3050;
                margin-top: 0.8rem;
            }
            nav.main-nav.open { display: flex; }
            .hamburger { display: block; }
            .section-card { padding: 1.2rem 1rem; }
            .feature-grid { grid-template-columns: 1fr; }
            .breadcrumb { font-size: 0.8rem; }
            footer .footer-inner { grid-template-columns: 1fr; }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .feature-grid { grid-template-columns: repeat(2, 1fr); }
        }
        .tag {
            display: inline-block;
            background: #1a2a45;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.8rem;
            color: #9bb8e0;
            margin-right: 0.4rem;
        }
        .table-wrap { overflow-x: auto; }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1rem 0;
        }
        th, td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #1e3050;
        }
        th { background: #142236; color: #f0b429; font-weight: 700; }
        tr:hover { background: #14223655; }
        .last-updated {
            font-size: 0.9rem;
            color: #8aa0c0;
            text-align: right;
            margin-top: 0.5rem;
            border-top: 1px solid #1a2a45;
            padding-top: 0.5rem;
        }
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            background: #f0b429;
            color: #0a0e17;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(240,180,41,0.3);
            transition: transform 0.2s;
            z-index: 50;
        }
        .back-to-top:hover { transform: translateY(-4px); color: #0a0e17; text-decoration: none; }
        @media (max-width: 480px) {
            .back-to-top { width: 40px; height: 40px; font-size: 1.1rem; bottom: 1.2rem; right: 1.2rem; }
        }