*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #0d0f1a;
            color: #e8eaf0;
            line-height: 1.75;
            padding: 0;
            margin: 0;
            min-height: 100vh;
        }
        a {
            color: #f0b90b;
            text-decoration: none;
            transition: color 0.25s ease, opacity 0.25s ease;
        }
        a:hover,
        a:focus-visible {
            color: #ffd966;
            opacity: 0.88;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #ffffff;
            margin-top: 1.5em;
            margin-bottom: 0.5em;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.2em;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 4px solid #f0b90b;
            padding-left: 0.75rem;
        }
        h3 {
            font-size: 1.4rem;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #d4d8e0;
        }
        p {
            margin-bottom: 1.25rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1rem;
        }
        .skip-link {
            position: absolute;
            top: -100%;
            left: 1rem;
            background: #f0b90b;
            color: #0d0f1a;
            padding: 0.5rem 1.2rem;
            border-radius: 0 0 8px 8px;
            z-index: 9999;
            font-weight: 600;
        }
        .skip-link:focus {
            top: 0;
        }
        .site-header {
            background: #141824;
            border-bottom: 2px solid #1e2438;
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 0.6rem 0;
            gap: 0.5rem 1rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #f0b90b, #ffd966);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
        }
        .my-logo i {
            font-size: 1.6rem;
            color: #f0b90b;
            background: none;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 0.2rem;
            padding: 0;
            margin: 0;
            flex-wrap: wrap;
        }
        .nav-list a {
            display: inline-block;
            padding: 0.5rem 0.9rem;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.92rem;
            color: #c8ccd8;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list a:hover,
        .nav-list a:focus-visible {
            background: #2a2f45;
            color: #f0b90b;
        }
        .nav-list a.active {
            background: #f0b90b;
            color: #0d0f1a;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #f0b90b;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.3rem 0.5rem;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #1e2438;
        }
        .breadcrumb {
            background: #181c2a;
            padding: 0.5rem 0;
            font-size: 0.85rem;
            border-bottom: 1px solid #1e2438;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.3rem 0.6rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 0.5rem;
            color: #6a7090;
        }
        .breadcrumb a {
            color: #aab0c8;
        }
        .breadcrumb a:hover {
            color: #f0b90b;
        }
        .breadcrumb .current {
            color: #f0b90b;
            font-weight: 500;
        }
        .main-content {
            padding: 2rem 0 3rem;
        }
        .article-header {
            margin-bottom: 2rem;
        }
        .article-header .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem 1.5rem;
            font-size: 0.9rem;
            color: #8a90aa;
            margin-top: 0.5rem;
        }
        .article-header .meta i {
            margin-right: 0.3rem;
            color: #f0b90b;
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: 16px;
            overflow: hidden;
            background: #1a1e2e;
            padding: 0.5rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
        }
        .featured-image figcaption {
            padding: 0.5rem 0.8rem 0.2rem;
            font-size: 0.85rem;
            color: #8a90aa;
            font-style: italic;
        }
        .search-section {
            background: #141824;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2.5rem 0;
            border: 1px solid #1e2438;
        }
        .search-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .search-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-top: 1rem;
        }
        .search-form input[type="text"] {
            flex: 1 1 260px;
            padding: 0.75rem 1.2rem;
            border-radius: 40px;
            border: 1px solid #2a2f45;
            background: #0d0f1a;
            color: #e8eaf0;
            font-size: 1rem;
            transition: border 0.2s, box-shadow 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #f0b90b;
            box-shadow: 0 0 0 3px rgba(240, 185, 11, 0.2);
            outline: none;
        }
        .search-form button {
            padding: 0.75rem 2rem;
            border-radius: 40px;
            border: none;
            background: #f0b90b;
            color: #0d0f1a;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-form button:hover,
        .search-form button:focus-visible {
            background: #ffd966;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2.5rem 0;
        }
        .feedback-card {
            background: #141824;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            border: 1px solid #1e2438;
            transition: border-color 0.2s;
        }
        .feedback-card:hover {
            border-color: #2a2f45;
        }
        .feedback-card h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.3rem;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            margin-top: 0.8rem;
        }
        .feedback-card textarea {
            resize: vertical;
            min-height: 100px;
            padding: 0.8rem 1.2rem;
            border-radius: 12px;
            border: 1px solid #2a2f45;
            background: #0d0f1a;
            color: #e8eaf0;
            font-family: inherit;
            font-size: 0.95rem;
            transition: border 0.2s;
        }
        .feedback-card textarea:focus {
            border-color: #f0b90b;
            outline: none;
            box-shadow: 0 0 0 3px rgba(240, 185, 11, 0.15);
        }
        .feedback-card input[type="text"],
        .feedback-card input[type="number"] {
            padding: 0.65rem 1.2rem;
            border-radius: 40px;
            border: 1px solid #2a2f45;
            background: #0d0f1a;
            color: #e8eaf0;
            font-size: 0.95rem;
        }
        .feedback-card input:focus {
            border-color: #f0b90b;
            outline: none;
            box-shadow: 0 0 0 3px rgba(240, 185, 11, 0.15);
        }
        .feedback-card .btn-submit {
            align-self: flex-start;
            padding: 0.65rem 2rem;
            border-radius: 40px;
            border: none;
            background: #f0b90b;
            color: #0d0f1a;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .feedback-card .btn-submit:hover {
            background: #ffd966;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 1.6rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #3a3f5a;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f0b90b;
        }
        .site-footer {
            background: #0b0d16;
            border-top: 2px solid #1a1e2e;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1.8rem;
        }
        .footer-grid h4 {
            color: #f0b90b;
            margin-top: 0;
            font-size: 1.05rem;
        }
        .footer-grid ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-grid li {
            margin-bottom: 0.4rem;
        }
        .footer-grid a {
            font-size: 0.9rem;
            color: #8a90aa;
        }
        .footer-grid a:hover {
            color: #f0b90b;
        }
        .friend-link {
            display: block;
            margin-top: 1.5rem;
            padding: 1rem 1.2rem;
            background: #141824;
            border-radius: 12px;
            border: 1px solid #1e2438;
            font-size: 0.9rem;
        }
        .friend-link strong {
            color: #f0b90b;
        }
        .friend-link a {
            display: inline-block;
            margin: 0.2rem 0.6rem 0.2rem 0;
            padding: 0.2rem 0.8rem;
            background: #1a1e2e;
            border-radius: 20px;
            font-size: 0.85rem;
            color: #c8ccd8;
            transition: background 0.2s;
        }
        .friend-link a:hover {
            background: #2a2f45;
            color: #f0b90b;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            margin-top: 1.5rem;
            border-top: 1px solid #1a1e2e;
            font-size: 0.82rem;
            color: #5a6080;
        }
        .copyright a {
            color: #8a90aa;
        }
        @media (max-width: 820px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #141824;
                border-radius: 12px;
                padding: 0.6rem 0.4rem;
                margin-top: 0.5rem;
                border: 1px solid #1e2438;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                padding: 0.6rem 1rem;
                border-radius: 8px;
            }
            .nav-wrapper {
                flex-wrap: wrap;
                width: 100%;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .feedback-grid {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            .search-section {
                padding: 1.2rem 1.2rem;
            }
            .feedback-card {
                padding: 1.2rem 1.2rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 0.6rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo i {
                font-size: 1.2rem;
            }
            .article-header .meta {
                font-size: 0.8rem;
                gap: 0.4rem 0.8rem;
            }
            .star-rating {
                font-size: 1.4rem;
            }
        }
        .highlight {
            color: #f0b90b;
            font-weight: 600;
        }
        .divider {
            height: 2px;
            background: linear-gradient(90deg, #f0b90b, transparent);
            margin: 2rem 0;
            border: none;
        }
        .tag {
            display: inline-block;
            background: #1e2438;
            color: #aab0c8;
            padding: 0.2rem 0.8rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 500;
            margin-right: 0.3rem;
        }
        .btn-top {
            position: fixed;
            bottom: 1.8rem;
            right: 1.8rem;
            background: #f0b90b;
            color: #0d0f1a;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            border: none;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s, transform 0.2s;
            box-shadow: 0 4px 20px rgba(240, 185, 11, 0.3);
            z-index: 999;
        }
        .btn-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .btn-top:hover {
            transform: scale(1.08);
        }
        .data-table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5rem 0;
            font-size: 0.92rem;
        }
        .data-table th,
        .data-table td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #1e2438;
        }
        .data-table th {
            background: #141824;
            color: #f0b90b;
            font-weight: 600;
        }
        .data-table tr:hover td {
            background: #14182455;
        }
        .data-table td {
            color: #c8ccd8;
        }
        blockquote {
            border-left: 4px solid #f0b90b;
            padding: 0.8rem 1.5rem;
            margin: 1.5rem 0;
            background: #14182488;
            border-radius: 0 12px 12px 0;
            font-style: italic;
            color: #b8bcd0;
        }
        blockquote footer {
            font-style: normal;
            font-size: 0.85rem;
            margin-top: 0.5rem;
            color: #8a90aa;
        }
        code {
            background: #1a1e2e;
            padding: 0.15rem 0.5rem;
            border-radius: 6px;
            font-size: 0.9em;
            color: #f0b90b;
        }