*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #0b0d17;
            color: #e4e8f0;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #facc15;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #ffe77a;
            outline: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #11131f 0%, #1a1d2e 100%);
            border-bottom: 2px solid #2a2e45;
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 20px;
        }
        .my-logo {
            font-size: 1.65rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, #facc15, #ff8c00);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(250, 204, 21, 0.15);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
        }
        .my-logo i {
            -webkit-text-fill-color: #facc15;
            margin-right: 6px;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-list a {
            padding: 6px 10px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.92rem;
            color: #c8cddf;
            transition: background 0.25s, color 0.25s;
        }
        .nav-list a:hover,
        .nav-list a.active {
            background: rgba(250, 204, 21, 0.12);
            color: #facc15;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #facc15;
            color: #facc15;
            font-size: 1.4rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(250, 204, 21, 0.10);
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #12141f;
            padding: 10px 0;
            border-bottom: 1px solid #252a40;
            font-size: 0.85rem;
            color: #8f96b0;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            padding: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 12px;
            color: #5a6180;
        }
        .breadcrumb a {
            color: #b8bdd6;
        }
        .breadcrumb a:hover {
            color: #facc15;
        }
        .breadcrumb .current {
            color: #facc15;
            font-weight: 500;
        }
        main {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media(max-width:920px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.18;
            margin-bottom: 12px;
            background: linear-gradient(135deg, #facc15, #ffb347);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .article-body h2 {
            font-size: 1.85rem;
            font-weight: 700;
            margin: 48px 0 16px;
            padding-bottom: 8px;
            border-bottom: 2px solid #2e3350;
            color: #f0e9d0;
        }
        .article-body h3 {
            font-size: 1.4rem;
            font-weight: 600;
            margin: 32px 0 12px;
            color: #facc15;
        }
        .article-body h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 24px 0 8px;
            color: #d4d9ed;
        }
        .article-body p {
            margin-bottom: 18px;
            font-size: 1.02rem;
            color: #d0d5e8;
        }
        .article-body strong {
            color: #f5f0e0;
        }
        .article-body em {
            color: #facc15;
            font-style: normal;
            font-weight: 500;
        }
        .article-body ul,
        .article-body ol {
            margin: 0 0 20px 24px;
            color: #c8cddf;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .highlight-box {
            background: linear-gradient(135deg, #191d30, #22273f);
            border-left: 4px solid #facc15;
            padding: 20px 24px;
            border-radius: 10px;
            margin: 28px 0;
        }
        .highlight-box p {
            margin-bottom: 0;
        }
        .featured-image {
            margin: 32px 0;
            border-radius: 14px;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
        }
        .featured-image figcaption {
            text-align: center;
            font-size: 0.88rem;
            color: #8f96b0;
            margin-top: 8px;
            font-style: italic;
        }
        .last-updated {
            display: inline-block;
            background: #1e2238;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.82rem;
            color: #b0b8d4;
            margin-bottom: 20px;
            border: 1px solid #2e3350;
        }
        .last-updated i {
            margin-right: 6px;
            color: #facc15;
        }
        .sidebar {
            background: #12141f;
            border-radius: 16px;
            padding: 24px 20px;
            border: 1px solid #252a40;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            color: #facc15;
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 16px;
            border-bottom: 1px solid #2a2e45;
            padding-bottom: 10px;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar li {
            margin-bottom: 10px;
        }
        .sidebar a {
            color: #c8cddf;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 6px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .sidebar a:hover {
            background: rgba(250, 204, 21, 0.07);
            color: #facc15;
        }
        .sidebar a i {
            width: 18px;
            color: #facc15;
            font-size: 0.85rem;
        }
        .search-section {
            background: #12141f;
            border-radius: 16px;
            padding: 24px 24px;
            margin: 40px 0;
            border: 1px solid #252a40;
        }
        .search-section h3 {
            color: #facc15;
            font-size: 1.3rem;
            margin-bottom: 16px;
        }
        .search-form {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 12px 18px;
            border-radius: 10px;
            border: 1px solid #2e3350;
            background: #0b0d17;
            color: #e4e8f0;
            font-size: 1rem;
            transition: border 0.3s;
        }
        .search-form input[type="text"]:focus {
            border-color: #facc15;
            outline: none;
            box-shadow: 0 0 0 3px rgba(250, 204, 21, 0.10);
        }
        .search-form button {
            padding: 12px 28px;
            background: #facc15;
            color: #0b0d17;
            font-weight: 700;
            border: none;
            border-radius: 10px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
        }
        .search-form button:hover {
            background: #ffe066;
            transform: scale(1.02);
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 40px 0;
        }
        @media(max-width:700px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: #12141f;
            border-radius: 16px;
            padding: 24px 24px 28px;
            border: 1px solid #252a40;
        }
        .feedback-card h3 {
            color: #facc15;
            font-size: 1.2rem;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .feedback-card textarea,
        .feedback-card input[type="number"],
        .feedback-card input[type="text"] {
            padding: 12px 16px;
            border-radius: 10px;
            border: 1px solid #2e3350;
            background: #0b0d17;
            color: #e4e8f0;
            font-size: 0.95rem;
            font-family: inherit;
            transition: border 0.3s;
            resize: vertical;
        }
        .feedback-card textarea:focus,
        .feedback-card input:focus {
            border-color: #facc15;
            outline: none;
            box-shadow: 0 0 0 3px rgba(250, 204, 21, 0.08);
        }
        .feedback-card textarea {
            min-height: 90px;
        }
        .feedback-card .star-select {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: #3a3f5c;
            cursor: pointer;
            direction: rtl;
        }
        .feedback-card .star-select input {
            display: none;
        }
        .feedback-card .star-select label {
            transition: color 0.2s;
            color: #3a3f5c;
            cursor: pointer;
        }
        .feedback-card .star-select label:hover,
        .feedback-card .star-select label:hover~label,
        .feedback-card .star-select input:checked~label {
            color: #facc15;
        }
        .feedback-card .btn-submit {
            padding: 12px 24px;
            background: #facc15;
            color: #0b0d17;
            font-weight: 700;
            border: none;
            border-radius: 10px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.3s, transform 0.15s;
            align-self: flex-start;
        }
        .feedback-card .btn-submit:hover {
            background: #ffe066;
            transform: scale(1.02);
        }
        .rating-display {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-top: 8px;
            font-size: 0.95rem;
        }
        .rating-display .stars {
            color: #facc15;
            letter-spacing: 2px;
        }
        .site-footer {
            background: #0c0e18;
            border-top: 2px solid #1e2238;
            padding: 40px 0 30px;
            margin-top: 60px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
        }
        @media(max-width:760px) {
            .footer-inner {
                grid-template-columns: 1fr;
            }
        }
        .footer-brand .my-logo {
            font-size: 1.4rem;
            display: inline-block;
            margin-bottom: 10px;
        }
        .footer-brand p {
            color: #8f96b0;
            font-size: 0.9rem;
            max-width: 360px;
        }
        friend-link {
            display: block;
            font-style: normal;
        }
        friend-link a {
            display: block;
            padding: 4px 0;
            color: #b8bdd6;
            font-size: 0.92rem;
            transition: color 0.2s;
        }
        friend-link a:hover {
            color: #facc15;
        }
        .footer-copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 24px;
            margin-top: 24px;
            border-top: 1px solid #1e2238;
            color: #6a7190;
            font-size: 0.82rem;
        }
        .footer-copyright a {
            color: #b8bdd6;
        }
        .footer-copyright a:hover {
            color: #facc15;
        }
        @media(max-width:768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-wrap {
                display: none;
                width: 100%;
                order: 3;
                margin-top: 8px;
            }
            #nav-toggle:checked~.nav-wrap {
                display: block;
            }
            .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
                background: #161a2b;
                padding: 12px 16px;
                border-radius: 12px;
                border: 1px solid #2a2e45;
            }
            .nav-list a {
                padding: 10px 14px;
                border-radius: 6px;
            }
            .article-body h1 {
                font-size: 1.9rem;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
            .article-body h3 {
                font-size: 1.2rem;
            }
            .sidebar {
                position: static;
                margin-top: 30px;
            }
            .search-form input[type="text"] {
                min-width: 140px;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 14px;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
            .feedback-card .star-select {
                font-size: 1.4rem;
            }
        }
        ::-webkit-scrollbar {
            width: 6px;
        }
        ::-webkit-scrollbar-track {
            background: #0b0d17;
        }
        ::-webkit-scrollbar-thumb {
            background: #2e3350;
            border-radius: 8px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #facc15;
        }
        ::selection {
            background: #facc15;
            color: #0b0d17;
        }