*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: #f5f7fc;
            color: #1a1a2e;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #2563eb;
            text-decoration: none;
            transition: color 0.2s;
        }
        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;
            background: #ffffff;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.06);
            border-radius: 24px;
            padding: 1.5rem 2rem 2.5rem;
            margin-top: 1.2rem;
            margin-bottom: 2rem;
        }
        @media (max-width: 640px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 1rem 1rem 1.5rem;
                border-radius: 16px;
                margin-top: 0.6rem;
            }
        }
        .site-header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 1rem;
            border-bottom: 2px solid #eef1f9;
            margin-bottom: 1.5rem;
            position: relative;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #ee2a7b, #ff6b35);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-flex;
            align-items: center;
            gap: 0.25rem;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #ee2a7b;
            font-size: 1.6rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 0.25rem;
            flex-wrap: wrap;
        }
        .nav-list li a {
            display: block;
            padding: 0.5rem 1rem;
            font-weight: 500;
            border-radius: 40px;
            color: #1e293b;
            font-size: 0.9rem;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list li a:hover {
            background: #eef2ff;
            color: #2563eb;
            text-decoration: none;
        }
        .nav-list li a i {
            margin-right: 6px;
        }
        .hamburger {
            display: none;
            font-size: 1.6rem;
            background: none;
            border: none;
            color: #1a1a2e;
            cursor: pointer;
            padding: 0.25rem 0.5rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: #f1f4fa;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #ffffff;
                border-radius: 16px;
                padding: 0.75rem 0;
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                z-index: 100;
                margin-top: 0.5rem;
                border: 1px solid #eef1f9;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 0.7rem 1.5rem;
                border-radius: 0;
            }
            .site-header {
                position: relative;
            }
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            font-size: 0.85rem;
            color: #64748b;
            padding: 0.5rem 0 1rem 0;
            gap: 0.4rem;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 0.4rem;
            color: #94a3b8;
        }
        .breadcrumb a {
            color: #64748b;
        }
        .breadcrumb a:hover {
            color: #2563eb;
        }
        .breadcrumb .active {
            color: #1e293b;
            font-weight: 500;
        }
        h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin: 0 0 0.75rem 0;
            background: linear-gradient(135deg, #0f172a, #3b82f6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin: 2.2rem 0 0.8rem 0;
            padding-bottom: 0.4rem;
            border-bottom: 3px solid #eef1f9;
            color: #0f172a;
        }
        h3 {
            font-size: 1.45rem;
            font-weight: 600;
            margin: 1.8rem 0 0.6rem 0;
            color: #1e293b;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            margin: 1.2rem 0 0.4rem 0;
            color: #334155;
        }
        p {
            margin: 0 0 1rem 0;
            color: #334155;
        }
        .lead {
            font-size: 1.2rem;
            color: #1e293b;
            font-weight: 400;
            line-height: 1.6;
        }
        .highlight {
            background: linear-gradient(120deg, #fef9c3 0%, #fef9c3 40%, transparent 80%);
            padding: 0 0.2rem;
            font-weight: 500;
        }
        .emoji-big {
            font-size: 1.4rem;
            margin-right: 0.3rem;
        }
        strong {
            color: #0f172a;
        }
        .small-meta {
            font-size: 0.85rem;
            color: #64748b;
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            align-items: center;
            margin-bottom: 1.5rem;
        }
        .small-meta i {
            margin-right: 4px;
        }
        .last-updated {
            background: #eef2ff;
            padding: 0.2rem 0.8rem;
            border-radius: 40px;
            font-weight: 500;
        }
        .hero-figure {
            margin: 1.5rem 0 2rem 0;
            border-radius: 16px;
            overflow: hidden;
            background: #f1f4fa;
            position: relative;
        }
        .hero-figure img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .hero-figure figcaption {
            padding: 0.6rem 1rem;
            font-size: 0.9rem;
            color: #475569;
            background: #f8fafc;
            border-top: 1px solid #eef1f9;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin: 1.8rem 0;
        }
        .feature-card {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.6rem 1.4rem;
            border: 1px solid #eef1f9;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.06);
        }
        .feature-card i {
            font-size: 2rem;
            color: #2563eb;
            margin-bottom: 0.75rem;
        }
        .feature-card h4 {
            margin-top: 0;
        }
        .link-group {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
            gap: 0.75rem;
            margin: 1.2rem 0 1.8rem 0;
            padding: 0;
            list-style: none;
        }
        .link-group li a {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            background: #f8fafc;
            padding: 0.7rem 1.2rem;
            border-radius: 40px;
            border: 1px solid #eef1f9;
            font-weight: 500;
            transition: background 0.2s, border-color 0.2s;
            font-size: 0.95rem;
        }
        .link-group li a:hover {
            background: #eef2ff;
            border-color: #b9c9fa;
            text-decoration: none;
        }
        .link-group li a i {
            color: #2563eb;
            font-size: 1rem;
            width: 1.2rem;
        }
        .form-card {
            background: #f8fafc;
            border-radius: 16px;
            padding: 1.5rem 1.8rem;
            border: 1px solid #eef1f9;
            margin: 1.8rem 0;
        }
        .form-card h3 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 1rem;
        }
        .form-group label {
            display: block;
            font-weight: 500;
            margin-bottom: 0.3rem;
            color: #1e293b;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 0.7rem 1rem;
            border: 1.5px solid #d1d9e6;
            border-radius: 10px;
            font-size: 0.95rem;
            background: #ffffff;
            transition: border 0.2s;
            font-family: inherit;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #2563eb;
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.7rem 1.8rem;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            background: #2563eb;
            color: #ffffff;
        }
        .btn:hover {
            background: #1e40af;
            transform: scale(0.98);
        }
        .btn i {
            font-size: 1rem;
        }
        .btn-outline {
            background: transparent;
            color: #2563eb;
            border: 1.5px solid #2563eb;
        }
        .btn-outline:hover {
            background: #eef2ff;
            transform: scale(0.98);
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 1.8rem;
            color: #d1d9e6;
            cursor: pointer;
            direction: rtl;
        }
        .rating-stars i {
            transition: color 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i:hover~i {
            color: #f59e0b;
        }
        .rating-stars.active i.active-star {
            color: #f59e0b;
        }
        .comment-list {
            margin: 1rem 0 0 0;
            padding: 0;
            list-style: none;
        }
        .comment-list li {
            padding: 1rem 0;
            border-bottom: 1px solid #eef1f9;
        }
        .comment-list li:last-child {
            border-bottom: none;
        }
        .comment-author {
            font-weight: 600;
            color: #0f172a;
        }
        .comment-time {
            font-size: 0.8rem;
            color: #94a3b8;
            margin-left: 0.75rem;
        }
        .comment-text {
            margin-top: 0.2rem;
            color: #334155;
        }
        .site-footer {
            margin-top: 2.5rem;
            padding-top: 1.8rem;
            border-top: 2px solid #eef1f9;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 1rem;
            font-size: 0.9rem;
            color: #475569;
        }
        .site-footer friend-link {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem 1.5rem;
            font-style: normal;
        }
        .site-footer friend-link a {
            color: #475569;
            font-weight: 500;
        }
        .site-footer friend-link a:hover {
            color: #2563eb;
        }
        .copyright {
            font-size: 0.85rem;
            color: #94a3b8;
        }
        @media (max-width: 640px) {
            .site-footer {
                flex-direction: column;
                text-align: center;
            }
            .site-footer friend-link {
                justify-content: center;
            }
        }
        .tag {
            display: inline-block;
            background: #eef2ff;
            padding: 0.15rem 0.7rem;
            border-radius: 40px;
            font-size: 0.8rem;
            color: #2563eb;
            font-weight: 500;
        }
        .divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(90deg, #2563eb, #ee2a7b);
            border-radius: 4px;
            margin: 0.5rem 0 1.2rem 0;
        }
        .quote-block {
            background: #f1f4fa;
            border-left: 4px solid #2563eb;
            padding: 1rem 1.5rem;
            border-radius: 0 12px 12px 0;
            margin: 1.2rem 0;
            font-style: italic;
            color: #1e293b;
        }
        .quote-block .attribution {
            font-style: normal;
            font-weight: 500;
            margin-top: 0.5rem;
            color: #64748b;
        }
        .two-col {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 1.5rem 0;
        }
        @media (max-width: 640px) {
            .two-col {
                grid-template-columns: 1fr;
                gap: 1rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .lead {
                font-size: 1.05rem;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #f1f4fa;
        }
        ::-webkit-scrollbar-thumb {
            background: #c7d2e0;
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #a0b0c6;
        }
        .toast-msg {
            display: none;
            background: #0f172a;
            color: #fff;
            padding: 0.6rem 1.2rem;
            border-radius: 40px;
            font-size: 0.9rem;
            margin-top: 0.8rem;
            animation: fadeIn 0.3s ease;
        }
        .toast-msg.show {
            display: inline-block;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(6px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }