*,
        *::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, BlinkMacSystemFont, sans-serif;
            background: #0d0f1a;
            color: #e8edf5;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #7aa9ff;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover,
        a:focus {
            color: #b3d0ff;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #f0f4ff;
            margin-top: 1.8rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 3px solid #4a6cf7;
            padding-bottom: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #6a4cf7;
            padding-left: 1rem;
            margin-top: 2.5rem;
        }
        h3 {
            font-size: 1.35rem;
            color: #c8d6ff;
        }
        h4 {
            font-size: 1.1rem;
            color: #a8bbf0;
        }
        p {
            margin-bottom: 1.2rem;
        }
        ul,
        ol {
            margin: 0.8rem 0 1.2rem 1.8rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        hr {
            border: none;
            border-top: 1px solid #2a2e42;
            margin: 2rem 0;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .badge {
            display: inline-block;
            background: #4a6cf7;
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.7rem;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        header {
            background: #141829;
            border-bottom: 2px solid #2a2e4a;
            padding: 0.8rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(8px);
            background: rgba(20, 24, 41, 0.94);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            background: linear-gradient(135deg, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #f7971e;
            font-size: 1.4rem;
        }
        .my-logo small {
            font-size: 0.7rem;
            -webkit-text-fill-color: initial;
            color: #8a9bff;
            font-weight: 400;
            letter-spacing: 0.3px;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        nav a {
            color: #c8d6ff;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            transition: background 0.2s, color 0.2s;
        }
        nav a:hover {
            background: #2a2e4a;
            color: #fff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
        }
        .nav-toggle {
            display: none;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.8rem;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            color: #8892b0;
            list-style: none;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.6rem;
            color: #4a5a7a;
        }
        .breadcrumb a {
            color: #7aa9ff;
        }
        .breadcrumb a:hover {
            color: #b3d0ff;
        }
        .breadcrumb .active {
            color: #c8d6ff;
            font-weight: 500;
        }
        .search-box {
            display: flex;
            gap: 0.4rem;
            max-width: 500px;
            margin: 1.5rem 0 2rem;
        }
        .search-box input {
            flex: 1;
            padding: 0.7rem 1rem;
            border: 2px solid #2a2e4a;
            border-radius: 30px;
            background: #1a1e30;
            color: #e8edf5;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.25s;
        }
        .search-box input:focus {
            border-color: #4a6cf7;
        }
        .search-box button {
            background: #4a6cf7;
            border: none;
            border-radius: 30px;
            padding: 0.7rem 1.4rem;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            font-size: 0.95rem;
        }
        .search-box button:hover {
            background: #3a5be0;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 2.5rem 0;
        }
        .feedback-card {
            background: #1a1e30;
            border: 1px solid #2a2e4a;
            border-radius: 16px;
            padding: 1.8rem 1.5rem;
            transition: box-shadow 0.25s;
        }
        .feedback-card:hover {
            box-shadow: 0 8px 30px rgba(74, 108, 247, 0.15);
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.2rem;
        }
        .feedback-card textarea,
        .feedback-card input {
            width: 100%;
            padding: 0.7rem 0.9rem;
            border: 2px solid #2a2e4a;
            border-radius: 10px;
            background: #0d0f1a;
            color: #e8edf5;
            font-size: 0.95rem;
            resize: vertical;
            outline: none;
            transition: border 0.25s;
            font-family: inherit;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus {
            border-color: #4a6cf7;
        }
        .feedback-card textarea {
            min-height: 90px;
        }
        .feedback-card .btn {
            margin-top: 0.6rem;
            background: #4a6cf7;
            border: none;
            border-radius: 30px;
            padding: 0.6rem 1.6rem;
            color: #fff;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            font-size: 0.9rem;
        }
        .feedback-card .btn:hover {
            background: #3a5be0;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.3rem;
            margin: 0.5rem 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #3a3e5a;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked~label,
        .star-rating label:hover,
        .star-rating label:hover~label {
            color: #ffc107;
        }
        .featured-img {
            border-radius: 18px;
            overflow: hidden;
            margin: 1.8rem 0 2.2rem;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
            border: 1px solid #2a2e4a;
        }
        .featured-img img {
            width: 100%;
            height: auto;
            display: block;
        }
        .featured-img figcaption {
            background: #1a1e30;
            padding: 0.8rem 1.2rem;
            font-size: 0.85rem;
            color: #8892b0;
            border-top: 1px solid #2a2e4a;
        }
        .link-list {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            margin: 1rem 0 1.5rem;
            padding: 0;
            list-style: none;
        }
        .link-list li a {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: #1a1e30;
            padding: 0.4rem 1rem;
            border-radius: 20px;
            border: 1px solid #2a2e4a;
            font-size: 0.88rem;
            transition: background 0.2s, border-color 0.2s;
        }
        .link-list li a:hover {
            background: #2a2e4a;
            border-color: #4a6cf7;
            text-decoration: none;
        }
        footer {
            background: #0a0c14;
            border-top: 2px solid #1e2238;
            padding: 2.5rem 0 1.8rem;
            margin-top: 3.5rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
        }
        friend-link {
            display: block;
            margin: 1.2rem 0;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
            color: #7aa9ff;
            font-size: 0.9rem;
        }
        friend-link a:hover {
            color: #b3d0ff;
        }
        .copyright {
            font-size: 0.82rem;
            color: #5a6488;
            border-top: 1px solid #1e2238;
            padding-top: 1.2rem;
            margin-top: 1.2rem;
            text-align: center;
        }
        .copyright strong {
            color: #8892b0;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: inline-block;
            }
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                padding: 1rem 0 0.5rem;
                gap: 0.3rem;
            }
            .nav-links a {
                padding: 0.6rem 0.8rem;
                border-radius: 6px;
            }
            .nav-toggle:checked~.nav-links {
                display: flex;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .header-inner {
                gap: 0.3rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .search-box {
                flex-direction: column;
            }
            .search-box button {
                width: 100%;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            h1 {
                font-size: 1.5rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .feedback-card {
                padding: 1.2rem 1rem;
            }
        }
        .highlight {
            background: linear-gradient(120deg, rgba(74, 108, 247, 0.2), rgba(74, 108, 247, 0.05));
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
        }
        .emoji-big {
            font-size: 1.6rem;
            vertical-align: middle;
        }
        .tip-box {
            background: #1a1e30;
            border-left: 4px solid #ffc107;
            padding: 1rem 1.2rem;
            border-radius: 8px;
            margin: 1.2rem 0;
        }
        .tip-box strong {
            color: #ffc107;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.2rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.92rem;
        }
        th,
        td {
            padding: 0.6rem 0.9rem;
            border: 1px solid #2a2e4a;
            text-align: left;
        }
        th {
            background: #1a1e30;
            color: #b3d0ff;
            font-weight: 600;
        }
        td {
            background: #0d0f1a;
        }
        .tag {
            display: inline-block;
            background: #2a2e4a;
            padding: 0.15rem 0.6rem;
            border-radius: 12px;
            font-size: 0.75rem;
            color: #a8bbf0;
            margin-right: 0.3rem;
        }