*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
            background: #0d1b2a;
            color: #e0e6ed;
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #f0b429;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #ffd966;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #f5f7fa;
        }
        h1 {
            font-size: 2.4rem;
            margin-bottom: 1rem;
        }
        h2 {
            font-size: 1.8rem;
            margin-top: 2.5rem;
            margin-bottom: 0.75rem;
            border-bottom: 2px solid #f0b429;
            padding-bottom: 0.35rem;
        }
        h3 {
            font-size: 1.35rem;
            margin-top: 1.8rem;
            margin-bottom: 0.5rem;
        }
        h4 {
            font-size: 1.1rem;
            margin-top: 1.2rem;
            margin-bottom: 0.3rem;
            color: #f0b429;
        }
        p {
            margin-bottom: 1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }
        header {
            background: #0a1520;
            border-bottom: 2px solid #1e3a5f;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 1.25rem;
            max-width: 1200px;
            margin: 0 auto;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.7rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #f0b429, #f7931e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: none;
        }
        .my-logo:hover {
            opacity: 0.9;
        }
        .nav-links {
            display: flex;
            gap: 1.8rem;
            list-style: none;
            padding: 0;
            margin: 0;
            align-items: center;
        }
        .nav-links li a {
            font-size: 0.95rem;
            font-weight: 500;
            color: #c8d6e5;
            padding: 0.3rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s, color 0.2s;
        }
        .nav-links li a:hover {
            color: #f0b429;
            border-bottom-color: #f0b429;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #f5f7fa;
            font-size: 1.6rem;
            cursor: pointer;
            padding: 0.25rem;
        }
        .breadcrumb {
            background: #0f1d2e;
            padding: 0.65rem 1.25rem;
            font-size: 0.85rem;
            border-bottom: 1px solid #1a2d44;
            max-width: 1200px;
            margin: 0 auto;
        }
        .breadcrumb a {
            color: #8fa3b8;
        }
        .breadcrumb a:hover {
            color: #f0b429;
        }
        .breadcrumb span {
            color: #5a7a9a;
            margin: 0 0.35rem;
        }
        .breadcrumb .current {
            color: #f0b429;
        }
        .hero-img {
            margin: 1.5rem 0 2rem;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
            background: #0f1d2e;
        }
        .hero-img img {
            width: 100%;
            height: auto;
            max-height: 420px;
            object-fit: cover;
        }
        .search-wrap {
            background: #0f1d2e;
            padding: 1.5rem;
            border-radius: 10px;
            margin: 1.5rem 0;
            border: 1px solid #1a2d44;
        }
        .search-wrap form {
            display: flex;
            gap: 0.75rem;
            flex-wrap: wrap;
        }
        .search-wrap input[type="text"] {
            flex: 1;
            min-width: 200px;
            padding: 0.75rem 1rem;
            border-radius: 6px;
            border: 1px solid #2a4058;
            background: #0a1520;
            color: #e0e6ed;
            font-size: 1rem;
            outline: none;
            transition: border 0.2s;
        }
        .search-wrap input[type="text"]:focus {
            border-color: #f0b429;
        }
        .search-wrap button {
            background: #f0b429;
            color: #0d1b2a;
            border: none;
            padding: 0.75rem 1.6rem;
            border-radius: 6px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .search-wrap button:hover {
            background: #ffd966;
            transform: scale(1.02);
        }
        .interact-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .interact-card {
            background: #0f1d2e;
            padding: 1.5rem;
            border-radius: 10px;
            border: 1px solid #1a2d44;
        }
        .interact-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
            border-bottom: 1px solid #1a2d44;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .interact-card form {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        .interact-card input,
        .interact-card textarea,
        .interact-card select {
            background: #0a1520;
            border: 1px solid #2a4058;
            color: #e0e6ed;
            padding: 0.65rem 0.9rem;
            border-radius: 6px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
        }
        .interact-card input:focus,
        .interact-card textarea:focus,
        .interact-card select:focus {
            border-color: #f0b429;
        }
        .interact-card textarea {
            min-height: 80px;
            resize: vertical;
        }
        .interact-card button {
            background: #f0b429;
            color: #0d1b2a;
            border: none;
            padding: 0.7rem 1.4rem;
            border-radius: 6px;
            font-weight: 700;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            align-self: flex-start;
        }
        .interact-card button:hover {
            background: #ffd966;
            transform: scale(1.02);
        }
        .star-rating {
            display: flex;
            gap: 0.3rem;
            font-size: 1.4rem;
            color: #3a5a7a;
            cursor: pointer;
        }
        .star-rating i {
            transition: color 0.2s;
        }
        .star-rating i.active,
        .star-rating i:hover {
            color: #f0b429;
        }
        .inline-links {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            list-style: none;
            padding: 0;
            margin: 0.75rem 0 1.5rem;
        }
        .inline-links li a {
            font-size: 0.9rem;
            background: #0f1d2e;
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            border: 1px solid #1a2d44;
            transition: background 0.2s, border-color 0.2s;
        }
        .inline-links li a:hover {
            background: #1a2d44;
            border-color: #f0b429;
        }
        footer {
            background: #070f18;
            border-top: 2px solid #1a2d44;
            padding: 2rem 1.25rem 1.5rem;
            margin-top: 3rem;
        }
        .footer-inner {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 2rem;
        }
        .footer-inner friend-link {
            display: block;
            font-style: normal;
        }
        .footer-inner friend-link a {
            display: inline-block;
            margin-right: 1.2rem;
            margin-bottom: 0.4rem;
            color: #8fa3b8;
            font-size: 0.9rem;
        }
        .footer-inner friend-link a:hover {
            color: #f0b429;
        }
        .copyright {
            grid-column: 1 / -1;
            text-align: center;
            padding-top: 1.5rem;
            border-top: 1px solid #1a2d44;
            margin-top: 1rem;
            font-size: 0.85rem;
            color: #5a7a9a;
        }
        @media (max-width: 768px) {
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0.5rem;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid #1a2d44;
                margin-top: 0.75rem;
            }
            .nav-links.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                padding: 0.5rem 1rem;
            }
            .interact-wrap {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .hero-img img {
                max-height: 220px;
            }
            .search-wrap form {
                flex-direction: column;
            }
            .search-wrap input[type="text"] {
                min-width: auto;
            }
        }
        @media (max-width: 480px) {
            body {
                font-size: 15px;
            }
            .container {
                padding: 0 0.9rem;
            }
            h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.3rem;
            }
        }
        .card {
            background: #0f1d2e;
            border-radius: 10px;
            padding: 1.5rem;
            margin: 1.2rem 0;
            border: 1px solid #1a2d44;
        }
        .card h3 {
            margin-top: 0;
        }
        .highlight {
            color: #f0b429;
            font-weight: 600;
        }
        .pro-tip {
            background: #1a2d44;
            border-left: 4px solid #f0b429;
            padding: 0.8rem 1.2rem;
            margin: 1rem 0;
            border-radius: 0 6px 6px 0;
        }
        .pro-tip strong {
            color: #f0b429;
        }
        .schema-hidden {
            display: none;
        }
        .toc {
            background: #0f1d2e;
            border-radius: 10px;
            padding: 1.2rem 1.5rem;
            border: 1px solid #1a2d44;
            margin: 1.5rem 0;
        }
        .toc ol {
            padding-left: 1.2rem;
        }
        .toc ol li {
            margin: 0.3rem 0;
        }
        .toc ol li a {
            color: #c8d6e5;
        }
        .toc ol li a:hover {
            color: #f0b429;
        }
        .last-updated {
            font-size: 0.85rem;
            color: #5a7a9a;
            text-align: right;
            margin-top: 0.5rem;
            border-top: 1px solid #1a2d44;
            padding-top: 0.5rem;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            margin: 1rem 0;
            font-size: 0.95rem;
        }
        th,
        td {
            padding: 0.6rem 0.9rem;
            text-align: left;
            border-bottom: 1px solid #1a2d44;
        }
        th {
            background: #0a1520;
            color: #f0b429;
            font-weight: 600;
        }
        tr:hover {
            background: #122235;
        }