*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            background: #0d0f1a;
            color: #e4e6f0;
            line-height: 1.7;
            padding: 0;
            margin: 0;
            min-height: 100vh;
        }
        a {
            color: #f7c948;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover,
        a:focus {
            color: #ffdd7e;
            text-decoration: underline;
        }
        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: #f0f2fa;
            margin-top: 1.75em;
            margin-bottom: 0.6em;
        }
        h1 {
            font-size: 2.6rem;
            margin-top: 0.4em;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            border-left: 5px solid #f7c948;
            padding-left: 1rem;
            margin-top: 2.2em;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 1.8em;
        }
        h4 {
            font-size: 1.2rem;
            margin-top: 1.4em;
            color: #c8cde0;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: #141829;
            border-bottom: 2px solid #2a2f4a;
            padding: 0.6rem 0;
            position: sticky;
            top: 0;
            z-index: 100;
            backdrop-filter: blur(8px);
            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: 0.8rem 1.5rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            background: linear-gradient(135deg, #f7c948, #f5a623);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
            text-shadow: 0 0 30px rgba(247, 201, 72, 0.15);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            background: transparent;
            -webkit-text-fill-color: #f7c948;
            font-size: 1.7rem;
        }
        .my-logo small {
            font-size: 0.8rem;
            font-weight: 400;
            -webkit-text-fill-color: #aab0d0;
            background: none;
            letter-spacing: 0.02em;
        }
        .my-logo:hover {
            text-decoration: none;
            opacity: 0.92;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.5rem 1.2rem;
            flex-wrap: wrap;
        }
        .main-nav a {
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.4rem 0.2rem;
            color: #c8cde0;
            position: relative;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: #f7c948;
            transition: width 0.3s ease;
        }
        .main-nav a:hover::after,
        .main-nav a:focus::after {
            width: 100%;
        }
        .main-nav a:hover {
            color: #f7c948;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: 2px solid #3a3f5e;
            color: #f0f2fa;
            font-size: 1.6rem;
            padding: 0.2rem 0.7rem;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #2a2f4a;
        }
        .nav-check {
            display: none;
        }
        .breadcrumb {
            background: #1a1e32;
            padding: 0.6rem 0;
            border-bottom: 1px solid #2a2f4a;
            font-size: 0.9rem;
        }
        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0;
            gap: 0.3rem 0.6rem;
        }
        .breadcrumb li+li::before {
            content: '›';
            margin-right: 0.6rem;
            color: #6a70a0;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #aab0d0;
        }
        .breadcrumb a:hover {
            color: #f7c948;
        }
        .breadcrumb .current {
            color: #f0f2fa;
            font-weight: 600;
        }
        .hero {
            padding: 2.8rem 0 2.2rem;
            text-align: center;
            background: radial-gradient(ellipse at 50% 0%, #1f2540 0%, #0d0f1a 75%);
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 0.3rem;
        }
        .hero .subtitle {
            font-size: 1.2rem;
            color: #aab0d0;
            max-width: 720px;
            margin: 0.6rem auto 1.2rem;
        }
        .hero .update-badge {
            display: inline-block;
            background: #2a2f4a;
            padding: 0.3rem 1.2rem;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #c8cde0;
            border: 1px solid #3a3f5e;
        }
        .hero .update-badge i {
            margin-right: 0.4rem;
            color: #f7c948;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            padding: 1.8rem 0 3rem;
        }
        .article-body {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 120px;
            align-self: start;
            background: #141829;
            border-radius: 16px;
            padding: 1.5rem 1.2rem;
            border: 1px solid #2a2f4a;
            max-height: 80vh;
            overflow-y: auto;
        }
        .sidebar h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #2a2f4a;
            padding-bottom: 0.5rem;
            color: #f7c948;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
            margin: 1rem 0 0;
        }
        .sidebar li {
            margin-bottom: 0.6rem;
        }
        .sidebar a {
            display: block;
            padding: 0.3rem 0.6rem;
            border-radius: 6px;
            font-size: 0.92rem;
            color: #c8cde0;
            transition: background 0.2s;
        }
        .sidebar a:hover {
            background: #1f2540;
            color: #f7c948;
            text-decoration: none;
        }
        .featured-figure {
            margin: 1.8rem 0 2.2rem;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
        }
        .featured-figure figcaption {
            background: #1a1e32;
            padding: 0.7rem 1.2rem;
            font-size: 0.9rem;
            color: #aab0d0;
            border-top: 2px solid #2a2f4a;
            text-align: center;
        }
        .highlight-box {
            background: #1a1e32;
            border-left: 6px solid #f7c948;
            padding: 1.2rem 1.8rem;
            border-radius: 0 12px 12px 0;
            margin: 1.6rem 0;
        }
        .highlight-box p {
            margin-bottom: 0.4rem;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem;
            margin: 1.6rem 0;
        }
        .stat-card {
            background: #1a1e32;
            border-radius: 12px;
            padding: 1rem 1.2rem;
            text-align: center;
            border: 1px solid #2a2f4a;
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #f7c948;
            display: block;
        }
        .stat-card .label {
            font-size: 0.85rem;
            color: #aab0d0;
            margin-top: 0.2rem;
        }
        .form-section {
            background: #141829;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2.5rem 0;
            border: 1px solid #2a2f4a;
        }
        .form-section h3 {
            margin-top: 0;
            color: #f7c948;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            font-size: 0.95rem;
            color: #c8cde0;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border-radius: 8px;
            border: 1px solid #3a3f5e;
            background: #0d0f1a;
            color: #e4e6f0;
            font-size: 0.95rem;
            transition: border 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #f7c948;
            outline: none;
            box-shadow: 0 0 0 3px rgba(247, 201, 72, 0.15);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: #f7c948;
            color: #0d0f1a;
            font-weight: 700;
            padding: 0.7rem 2rem;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s, transform 0.1s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:hover {
            background: #ffdd7e;
            transform: scale(1.02);
        }
        .btn:active {
            transform: scale(0.97);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 1.8rem;
            color: #3a3f5e;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f7c948;
        }
        .site-footer {
            background: #0b0d16;
            border-top: 2px solid #2a2f4a;
            padding: 2.8rem 0 1.8rem;
            margin-top: 3rem;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .site-footer h4 {
            color: #f7c948;
            margin-top: 0;
            font-size: 1.1rem;
        }
        .friend-link {
            display: block;
            background: #1a1e32;
            border-radius: 12px;
            padding: 1rem 1.2rem;
            margin-bottom: 0.8rem;
            border: 1px solid #2a2f4a;
            transition: background 0.2s;
        }
        .friend-link:hover {
            background: #1f2540;
            border-color: #f7c948;
        }
        .friend-link a {
            color: #c8cde0;
            font-weight: 500;
        }
        .friend-link a:hover {
            color: #f7c948;
            text-decoration: none;
        }
        .copyright {
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #2a2f4a;
            color: #6a70a0;
            font-size: 0.9rem;
        }
        .copyright a {
            color: #aab0d0;
        }
        @media (max-width: 868px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                max-height: none;
                margin-top: 2rem;
            }
            h1 {
                font-size: 2rem;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 0.8rem;
                gap: 0.3rem;
            }
            .main-nav a {
                padding: 0.6rem 0.8rem;
                border-radius: 6px;
                background: #1a1e32;
            }
            .main-nav a:hover {
                background: #2a2f4a;
            }
            .nav-check:checked~.main-nav {
                display: flex;
            }
            .form-section {
                padding: 1.2rem 1.2rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            h1 {
                font-size: 1.6rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .star-rating label {
                font-size: 1.4rem;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #0d0f1a;
        }
        ::-webkit-scrollbar-thumb {
            background: #3a3f5e;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #5a5f7e;
        }
        ::selection {
            background: #f7c948;
            color: #0d0f1a;
        }
        .fa-spin-hover:hover i {
            animation: fa-spin 1s ease infinite;
        }
        @keyframes pulse-glow {
            0%,
            100% {
                box-shadow: 0 0 10px rgba(247, 201, 72, 0.1);
            }
            50% {
                box-shadow: 0 0 25px rgba(247, 201, 72, 0.25);
            }
        }
        .glow-border {
            animation: pulse-glow 3s ease-in-out infinite;
        }