* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f8f9fc;
            color: #1e1e2a;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: #0a66c2;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #004182;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.5rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.25;
            color: #0b1a2f;
            margin-top: 2rem;
            margin-bottom: 0.75rem;
        }
        h1 {
            font-size: 2.4rem;
            margin-top: 0.5rem;
            border-bottom: 3px solid #c89b3c;
            padding-bottom: 0.5rem;
            display: inline-block;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #c89b3c;
            padding-left: 1rem;
            margin-top: 2.8rem;
        }
        h3 {
            font-size: 1.4rem;
            margin-top: 1.8rem;
        }
        h4 {
            font-size: 1.15rem;
            margin-top: 1.2rem;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.1rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
        }
        .site-header {
            background: linear-gradient(135deg, #0a1428 0%, #1a2a4a 100%);
            color: #fff;
            padding: 0.75rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: #f0e6d3;
            letter-spacing: 1px;
            text-transform: uppercase;
            background: linear-gradient(to right, #c89b3c, #f0e6d3);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: transform 0.3s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
        }
        .my-logo small {
            font-size: 0.65rem;
            display: block;
            -webkit-text-fill-color: #8899aa;
            color: #8899aa;
            letter-spacing: 2px;
            font-weight: 400;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }
        .main-nav a {
            color: #d0dbe8;
            font-weight: 500;
            font-size: 0.9rem;
            padding: 0.4rem 0.6rem;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
        }
        .main-nav a:hover {
            background: rgba(200, 155, 60, 0.2);
            color: #f0e6d3;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #f0e6d3;
            font-size: 1.7rem;
            cursor: pointer;
            padding: 0.2rem 0.4rem;
        }
        #nav-toggle {
            display: none;
        }
        .breadcrumb {
            background: #eaeef4;
            padding: 0.6rem 0;
            font-size: 0.85rem;
            color: #445566;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.2rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 0.5rem;
            color: #8899aa;
        }
        .breadcrumb a {
            color: #0a66c2;
        }
        .hero {
            background: linear-gradient(145deg, #0b1a2f, #1f3a5f);
            color: #f0e6d3;
            padding: 3rem 0 2.5rem;
            margin-bottom: 2rem;
            border-radius: 0 0 40px 40px;
        }
        .hero h1 {
            color: #f0e6d3;
            border-bottom-color: #c89b3c;
            font-size: 2.6rem;
        }
        .hero p {
            font-size: 1.15rem;
            max-width: 780px;
            margin-top: 0.5rem;
            opacity: 0.9;
        }
        .hero .meta-info {
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            margin-top: 1rem;
            font-size: 0.9rem;
            color: #b8c8dd;
        }
        .hero .meta-info i {
            margin-right: 0.4rem;
            color: #c89b3c;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 2.5rem;
            margin: 2rem 0;
        }
        .main-content {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 90px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            margin-bottom: 1.8rem;
            border: 1px solid #eef2f6;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-top: 0;
            border-bottom: 2px solid #c89b3c;
            padding-bottom: 0.5rem;
            margin-bottom: 1rem;
        }
        .sidebar-links a {
            display: block;
            padding: 0.5rem 0;
            border-bottom: 1px solid #f0f2f5;
            font-size: 0.9rem;
        }
        .sidebar-links a:last-child {
            border-bottom: none;
        }
        .sidebar-links a::before {
            content: "▸ ";
            color: #c89b3c;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 1.5rem;
            margin: 2rem 0;
        }
        .feature-card {
            background: #fff;
            border-radius: 16px;
            padding: 1.5rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #eef2f6;
            transition: transform 0.2s, box-shadow 0.3s;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.08);
        }
        .feature-card i {
            font-size: 2rem;
            color: #c89b3c;
            margin-bottom: 0.75rem;
        }
        .feature-card h3 {
            margin-top: 0;
            font-size: 1.2rem;
        }
        .form-card {
            background: #fff;
            border-radius: 16px;
            padding: 2rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
            border: 1px solid #eef2f6;
            margin: 2rem 0;
        }
        .form-card h2 {
            margin-top: 0;
            border-left-color: #c89b3c;
        }
        .form-group {
            margin-bottom: 1.2rem;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 0.3rem;
            font-size: 0.9rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1px solid #d0d8e0;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            background: #fafbfc;
            transition: border 0.2s;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #c89b3c;
            outline: none;
            box-shadow: 0 0 0 3px rgba(200, 155, 60, 0.15);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: linear-gradient(135deg, #c89b3c, #a87d2e);
            color: #fff;
            border: none;
            padding: 0.75rem 2rem;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 155, 60, 0.35);
        }
        .btn-secondary {
            background: #eef2f6;
            color: #1e1e2a;
        }
        .btn-secondary:hover {
            background: #dce3ec;
            box-shadow: none;
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 0.2rem;
            font-size: 1.8rem;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            cursor: pointer;
            color: #d0d8e0;
            transition: color 0.15s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f5c842;
        }
        .comment-item {
            border-bottom: 1px solid #eef2f6;
            padding: 1.2rem 0;
        }
        .comment-item:last-child {
            border-bottom: none;
        }
        .comment-item strong {
            color: #0b1a2f;
        }
        .comment-item .date {
            font-size: 0.8rem;
            color: #8899aa;
            margin-left: 0.5rem;
        }
        .comment-item .stars {
            color: #f5c842;
            font-size: 0.9rem;
            letter-spacing: 2px;
        }
        .site-footer {
            background: #0b1a2f;
            color: #b8c8dd;
            padding: 2.5rem 0 1.5rem;
            margin-top: 3rem;
            border-radius: 40px 40px 0 0;
        }
        .site-footer a {
            color: #c89b3c;
        }
        .site-footer a:hover {
            color: #f0e6d3;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-bottom: 2rem;
        }
        .footer-grid h4 {
            color: #f0e6d3;
            margin-top: 0;
            border-bottom: 2px solid #c89b3c;
            padding-bottom: 0.4rem;
        }
        friend-link {
            display: block;
            padding: 0.6rem 0;
            font-style: normal;
        }
        friend-link a {
            display: inline-block;
            margin: 0.3rem 1rem 0.3rem 0;
        }
        .copyright {
            border-top: 1px solid #1f3a5f;
            padding-top: 1.5rem;
            text-align: center;
            font-size: 0.85rem;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .hero h1 {
                font-size: 1.9rem;
            }
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 0.5rem;
                padding: 1rem 0 0.5rem;
                border-top: 1px solid #1f3a5f;
                margin-top: 0.75rem;
            }
            #nav-toggle:checked~.main-nav {
                display: flex;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            h1 {
                font-size: 1.7rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            .hero {
                padding: 2rem 0 1.5rem;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .form-card {
                padding: 1.2rem;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 1rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .star-rating {
                font-size: 1.4rem;
            }
        }
        .highlight-box {
            background: #f0e6d3;
            border-left: 6px solid #c89b3c;
            padding: 1.2rem 1.8rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .emoji-big {
            font-size: 1.3rem;
        }
        .tag {
            display: inline-block;
            background: #c89b3c20;
            color: #a87d2e;
            padding: 0.2rem 0.8rem;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-right: 0.4rem;
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: #eef2f6;
            padding: 0.3rem 1rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #445566;
        }
        .table-wrap {
            overflow-x: auto;
            margin: 1.5rem 0;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
        }
        th,
        td {
            padding: 0.7rem 1rem;
            text-align: left;
            border-bottom: 1px solid #eef2f6;
        }
        th {
            background: #0b1a2f10;
            font-weight: 700;
            color: #0b1a2f;
        }
        tr:hover td {
            background: #f8f4ef;
        }