*,
        *::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: #0b0d11;
            color: #e8eaed;
            line-height: 1.75;
            padding: 0;
            margin: 0;
            min-height: 100vh;
        }
        a {
            color: #f5c542;
            text-decoration: none;
            transition: color 0.2s ease;
        }
        a:hover {
            color: #ffd966;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #f0f2f5;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.6rem;
            margin-top: 0.5rem;
            margin-bottom: 1.25rem;
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: 2rem;
            border-bottom: 2px solid #2a2e36;
            padding-bottom: 0.5rem;
            margin-top: 3rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 2rem;
        }
        h4 {
            font-size: 1.2rem;
            margin-top: 1.5rem;
            color: #d4d8dd;
        }
        p {
            margin-bottom: 1.25rem;
            font-size: 1.05rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .site-header {
            background: #161a22;
            border-bottom: 2px solid #2a2e36;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #f5c542;
            letter-spacing: -0.03em;
            text-transform: uppercase;
            background: linear-gradient(135deg, #f5c542, #e6a800);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: opacity 0.2s;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.65rem;
            font-weight: 400;
            display: block;
            -webkit-text-fill-color: #8a8f99;
            color: #8a8f99;
            letter-spacing: 0.1em;
            text-transform: none;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }
        .main-nav a {
            color: #c8ccd4;
            padding: 0.5rem 0.9rem;
            border-radius: 6px;
            font-weight: 500;
            font-size: 0.92rem;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover,
        .main-nav a.active {
            background: #2a2e36;
            color: #f5c542;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #e8eaed;
            cursor: pointer;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #2a2e36;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #1a1e27;
            padding: 0.6rem 0;
            border-bottom: 1px solid #2a2e36;
            font-size: 0.85rem;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.6rem;
            padding: 0;
            margin: 0;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        .breadcrumb li+li::before {
            content: "/";
            margin-right: 0.6rem;
            color: #5a5f69;
        }
        .breadcrumb a {
            color: #9aa0ab;
        }
        .breadcrumb a:hover {
            color: #f5c542;
        }
        .breadcrumb .current {
            color: #e8eaed;
            font-weight: 500;
        }
        .hero {
            padding: 2.5rem 0 1.5rem;
            text-align: center;
            background: radial-gradient(ellipse at 50% 0%, #1e2532, #0b0d11 70%);
        }
        .hero h1 {
            font-size: 3rem;
            margin-bottom: 0.75rem;
        }
        .hero .subtitle {
            font-size: 1.2rem;
            color: #b0b6c2;
            max-width: 720px;
            margin: 0 auto 1.5rem;
        }
        .hero .update-badge {
            display: inline-block;
            background: #2a2e36;
            padding: 0.4rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #c8ccd4;
            border: 1px solid #3a3f4a;
        }
        .hero .update-badge i {
            margin-right: 0.4rem;
            color: #f5c542;
        }
        .search-section {
            background: #161a22;
            padding: 1.5rem 0;
            border-top: 1px solid #2a2e36;
            border-bottom: 1px solid #2a2e36;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            margin: 0 auto;
            gap: 0.5rem;
        }
        .search-form input[type="text"] {
            flex: 1;
            padding: 0.75rem 1rem;
            border: 2px solid #2a2e36;
            border-radius: 8px;
            background: #0b0d11;
            color: #e8eaed;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-form input[type="text"]:focus {
            border-color: #f5c542;
        }
        .search-form button {
            padding: 0.75rem 1.5rem;
            background: #f5c542;
            color: #0b0d11;
            border: none;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-form button:hover {
            background: #ffd966;
            transform: scale(1.02);
        }
        .content-area {
            padding: 2rem 0 3rem;
        }
        .content-area .container {
            max-width: 900px;
        }
        .content-area img {
            border-radius: 12px;
            margin: 2rem auto;
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.6);
            max-width: 100%;
            border: 1px solid #2a2e36;
        }
        .content-area .img-caption {
            text-align: center;
            font-size: 0.85rem;
            color: #8a8f99;
            margin-top: -1.25rem;
            margin-bottom: 2rem;
        }
        .highlight-box {
            background: #1a1e27;
            border-left: 4px solid #f5c542;
            padding: 1.5rem 2rem;
            border-radius: 0 12px 12px 0;
            margin: 2rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: #161a22;
            padding: 1.25rem;
            border-radius: 10px;
            text-align: center;
            border: 1px solid #2a2e36;
            transition: transform 0.2s, border-color 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            border-color: #f5c542;
        }
        .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #f5c542;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: #9aa0ab;
            margin-top: 0.25rem;
        }
        .link-list-inline {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1rem;
            list-style: none;
            padding: 0;
            margin: 1.5rem 0;
        }
        .link-list-inline li a {
            background: #1a1e27;
            padding: 0.3rem 1rem;
            border-radius: 20px;
            font-size: 0.9rem;
            border: 1px solid #2a2e36;
            transition: background 0.2s, border-color 0.2s;
        }
        .link-list-inline li a:hover {
            background: #2a2e36;
            border-color: #f5c542;
            text-decoration: none;
        }
        .interaction-section {
            background: #161a22;
            padding: 2.5rem 0;
            border-top: 2px solid #2a2e36;
            border-bottom: 2px solid #2a2e36;
            margin: 2.5rem 0;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .interaction-card {
            background: #0b0d11;
            padding: 1.75rem;
            border-radius: 12px;
            border: 1px solid #2a2e36;
        }
        .interaction-card h3 {
            margin-top: 0;
            font-size: 1.3rem;
            border-bottom: 1px solid #2a2e36;
            padding-bottom: 0.6rem;
            margin-bottom: 1.2rem;
        }
        .interaction-card form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }
        .interaction-card input,
        .interaction-card textarea,
        .interaction-card select {
            padding: 0.65rem 0.9rem;
            border: 2px solid #2a2e36;
            border-radius: 6px;
            background: #0b0d11;
            color: #e8eaed;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
            font-family: inherit;
        }
        .interaction-card input:focus,
        .interaction-card textarea:focus,
        .interaction-card select:focus {
            border-color: #f5c542;
        }
        .interaction-card textarea {
            min-height: 90px;
            resize: vertical;
        }
        .interaction-card button {
            padding: 0.7rem 1.5rem;
            background: #f5c542;
            color: #0b0d11;
            border: none;
            border-radius: 6px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
        }
        .interaction-card button:hover {
            background: #ffd966;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 0.4rem;
            font-size: 1.6rem;
            color: #3a3f4a;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            transition: color 0.15s;
            color: #3a3f4a;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5c542;
        }
        .site-footer {
            background: #0f1219;
            border-top: 2px solid #2a2e36;
            padding: 2.5rem 0 1.5rem;
            margin-top: 2rem;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2rem;
        }
        .footer-inner h4 {
            margin-top: 0;
            font-size: 1.1rem;
            color: #f0f2f5;
        }
        .footer-inner p,
        .footer-inner li {
            font-size: 0.9rem;
            color: #9aa0ab;
        }
        .footer-inner ul {
            list-style: none;
            padding: 0;
        }
        .footer-inner ul li {
            margin-bottom: 0.4rem;
        }
        .footer-inner ul li a {
            color: #b0b6c2;
        }
        .footer-inner ul li a:hover {
            color: #f5c542;
        }
        friend-link {
            display: block;
            margin-top: 0.5rem;
        }
        friend-link a {
            color: #b0b6c2;
            font-size: 0.9rem;
            display: inline-block;
            margin-right: 1.2rem;
            margin-bottom: 0.3rem;
        }
        friend-link a:hover {
            color: #f5c542;
        }
        .copyright {
            grid-column: 1 / -1;
            border-top: 1px solid #1e2532;
            padding-top: 1.2rem;
            margin-top: 1rem;
            text-align: center;
            font-size: 0.85rem;
            color: #6a6f7a;
        }
        .copyright strong {
            color: #9aa0ab;
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #161a22;
                padding: 1rem 0;
                border-top: 1px solid #2a2e36;
                margin-top: 0.75rem;
            }
            #nav-toggle:checked~.main-nav {
                display: flex;
            }
            .header-inner {
                position: relative;
            }
            .main-nav a {
                padding: 0.7rem 1rem;
                width: 100%;
                text-align: center;
            }
            h1 {
                font-size: 2rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .interaction-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            .stat-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                width: 100%;
            }
        }
        @media (max-width: 480px) {
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .container {
                padding: 0 0.9rem;
            }
            .highlight-box {
                padding: 1rem 1.2rem;
            }
        }
        .text-muted {
            color: #8a8f99;
        }
        .mt-0 {
            margin-top: 0;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .fw-700 {
            font-weight: 700;
        }
        .flex-center {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .gap-1 {
            gap: 1rem;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.95rem;
        }
        table th,
        table td {
            padding: 0.7rem 1rem;
            border: 1px solid #2a2e36;
            text-align: left;
        }
        table th {
            background: #1a1e27;
            font-weight: 600;
            color: #f0f2f5;
        }
        table td {
            background: #0f1219;
        }
        table tr:hover td {
            background: #161a22;
        }