* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f8fafc;
            color: #1e293b;
            line-height: 1.7;
            font-size: 1.0625rem;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color .2s;
        }
        a:hover {
            color: #1e40af;
            text-decoration: underline;
        }
        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, #0f172a 0%, #1e293b 100%);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, .15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px 20px;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #facc15;
            letter-spacing: -0.5px;
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            color: #3b82f6;
            font-size: 2rem;
        }
        .my-logo:hover {
            color: #fde047;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #475569;
            color: #f1f5f9;
            font-size: 1.5rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: .2s;
        }
        .nav-toggle:hover {
            border-color: #facc15;
            color: #facc15;
        }
        .primary-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 16px;
            align-items: center;
        }
        .primary-nav a {
            color: #cbd5e1;
            font-weight: 500;
            font-size: .95rem;
            padding: 6px 10px;
            border-radius: 6px;
            transition: .2s;
        }
        .primary-nav a:hover {
            color: #facc15;
            background: rgba(250, 204, 21, .08);
            text-decoration: none;
        }
        .primary-nav a.active {
            color: #facc15;
            background: rgba(250, 204, 21, .12);
        }
        .breadcrumb-wrap {
            background: #e2e8f0;
            padding: 10px 0;
            font-size: .9rem;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            list-style: none;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #64748b;
        }
        .breadcrumb a {
            color: #475569;
        }
        .breadcrumb a:hover {
            color: #1e293b;
        }
        .breadcrumb .current {
            color: #0f172a;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #1e293b, #0f172a);
            color: #f8fafc;
            padding: 52px 0 56px;
            margin-bottom: 40px;
            border-radius: 0 0 40px 40px;
        }
        .hero h1 {
            font-size: clamp(2.2rem, 6vw, 3.8rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }
        .hero h1 i {
            color: #facc15;
        }
        .hero p {
            font-size: 1.2rem;
            color: #94a3b8;
            max-width: 720px;
            margin-top: 16px;
        }
        .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            margin-top: 24px;
            font-size: .95rem;
            color: #94a3b8;
        }
        .hero-meta i {
            color: #facc15;
            margin-right: 6px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            padding: 0 0 48px;
        }
        .main-col {
            min-width: 0;
        }
        .sidebar {
            position: sticky;
            top: 110px;
            align-self: start;
        }
        h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 48px 0 18px;
            padding-bottom: 8px;
            border-bottom: 4px solid #3b82f6;
            display: inline-block;
            color: #0f172a;
        }
        h3 {
            font-size: 1.55rem;
            font-weight: 600;
            margin: 32px 0 14px;
            color: #1e293b;
        }
        h4 {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 24px 0 10px;
            color: #334155;
        }
        p {
            margin-bottom: 18px;
        }
        .content-card {
            background: #ffffff;
            border-radius: 20px;
            padding: 28px 32px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, .04);
            margin-bottom: 28px;
            border: 1px solid #e9edf2;
        }
        .content-card img {
            margin: 16px 0 12px;
            border-radius: 14px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, .06);
        }
        .highlight-box {
            background: #f1f5f9;
            border-left: 6px solid #3b82f6;
            padding: 18px 24px;
            border-radius: 0 14px 14px 0;
            margin: 20px 0;
        }
        .emoji-big {
            font-size: 1.6rem;
            margin-right: 6px;
        }
        .tag {
            display: inline-block;
            background: #dbeafe;
            color: #1e40af;
            padding: 2px 14px;
            border-radius: 20px;
            font-size: .85rem;
            font-weight: 600;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 22px 20px;
            box-shadow: 0 4px 14px rgba(0, 0, 0, .04);
            border: 1px solid #e9edf2;
            margin-bottom: 24px;
        }
        .sidebar-card h4 {
            font-size: 1.15rem;
            margin-top: 0;
            margin-bottom: 12px;
            color: #0f172a;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 8px;
        }
        .link-list {
            list-style: none;
        }
        .link-list li {
            margin-bottom: 8px;
        }
        .link-list a {
            font-size: .95rem;
            display: block;
            padding: 4px 0;
        }
        .link-list a i {
            width: 20px;
            color: #3b82f6;
        }
        .form-group {
            margin-bottom: 16px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            font-size: .95rem;
            margin-bottom: 4px;
            color: #1e293b;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid #e2e8f0;
            border-radius: 10px;
            font-size: 1rem;
            background: #f8fafc;
            transition: .2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus {
            border-color: #3b82f6;
            outline: none;
            background: #fff;
        }
        .form-group textarea {
            min-height: 90px;
            resize: vertical;
        }
        .btn {
            background: #2563eb;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: .25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #1e40af;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(37, 99, 235, .25);
        }
        .btn-outline {
            background: transparent;
            color: #2563eb;
            border: 2px solid #2563eb;
        }
        .btn-outline:hover {
            background: #2563eb;
            color: #fff;
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #cbd5e1;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating i {
            transition: .2s;
        }
        .star-rating i:hover,
        .star-rating i:hover~i {
            color: #facc15;
        }
        .star-rating input {
            display: none;
        }
        .star-rating input:checked~i {
            color: #facc15;
        }
        .comment-item {
            background: #f8fafc;
            border-radius: 12px;
            padding: 16px 20px;
            margin-bottom: 12px;
            border-left: 4px solid #3b82f6;
        }
        .comment-item strong {
            color: #0f172a;
        }
        .comment-item .date {
            font-size: .8rem;
            color: #64748b;
            margin-left: 12px;
        }
        .site-footer {
            background: #0f172a;
            color: #cbd5e1;
            padding: 40px 0 24px;
            margin-top: 40px;
            border-radius: 40px 40px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 28px;
        }
        .site-footer h5 {
            color: #f1f5f9;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        .site-footer a {
            color: #94a3b8;
        }
        .site-footer a:hover {
            color: #facc15;
        }
        .friend-link {
            display: block;
            padding: 6px 0;
        }
        .copyright {
            border-top: 1px solid #1e293b;
            margin-top: 28px;
            padding-top: 20px;
            text-align: center;
            font-size: .9rem;
            color: #64748b;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                order: 2;
            }
            .main-col {
                order: 1;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            .primary-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                background: #1e293b;
                padding: 14px 16px;
                border-radius: 14px;
                margin-top: 8px;
            }
            .primary-nav.open {
                display: flex;
            }
            .primary-nav a {
                padding: 10px 12px;
                border-bottom: 1px solid #334155;
            }
            .primary-nav a:last-child {
                border-bottom: none;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .content-card {
                padding: 20px 16px;
            }
            .hero {
                padding: 32px 0 40px;
                border-radius: 0 0 24px 24px;
            }
        }
        @media (max-width: 480px) {
            .my-logo {
                font-size: 1.4rem;
            }
            .hero h1 {
                font-size: 1.7rem;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .star-rating {
                font-size: 1.5rem;
            }
        }
        .mt-1 {
            margin-top: 12px;
        }
        .mt-2 {
            margin-top: 24px;
        }
        .flex {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .gap-1 {
            gap: 8px;
        }
        .text-sm {
            font-size: .92rem;
            color: #64748b;
        }
        .table-wrap {
            overflow-x: auto;
        }
        table {
            width: 100%;
            border-collapse: collapse;
            font-size: .95rem;
            margin: 16px 0;
        }
        th,
        td {
            padding: 10px 14px;
            border: 1px solid #e2e8f0;
            text-align: left;
        }
        th {
            background: #f1f5f9;
            font-weight: 600;
        }