*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f8f9fc;
            color: #1a1a2e;
            line-height: 1.8;
            padding: 0;
            margin: 0;
        }
        a {
            color: #d32f2f;
            text-decoration: none;
            transition: color 0.25s ease;
        }
        a:hover {
            color: #b71c1c;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        ul,
        ol {
            padding-left: 1.6rem;
            margin: 1rem 0;
        }
        li {
            margin-bottom: 0.4rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: #0d0d1a;
            margin-top: 2rem;
            margin-bottom: 0.8rem;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #d32f2f;
            padding-bottom: 0.5rem;
            margin-top: 0.5rem;
        }
        h2 {
            font-size: 1.8rem;
            border-left: 5px solid #d32f2f;
            padding-left: 1rem;
            background: #f0f2f8;
            padding: 0.6rem 1rem;
            border-radius: 0 8px 8px 0;
        }
        h3 {
            font-size: 1.4rem;
            color: #2a2a4a;
            margin-top: 1.8rem;
        }
        h4 {
            font-size: 1.15rem;
            color: #3a3a5a;
            font-weight: 600;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0d0d1a 0%, #1a1a3e 100%);
            color: #fff;
            padding: 1rem 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;
            gap: 0.8rem;
        }
        .my-logo {
            font-size: 1.9rem;
            font-weight: 800;
            color: #ffcc00;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 8px rgba(255, 204, 0, 0.25);
            transition: transform 0.2s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #ffd633;
        }
        .my-logo i {
            font-size: 2rem;
            color: #ff6b6b;
        }
        .my-logo span {
            font-size: 0.85rem;
            font-weight: 400;
            color: #aaa;
            display: block;
            letter-spacing: 1px;
        }
        nav {
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 0.2rem;
            padding: 0;
            margin: 0;
            flex-wrap: wrap;
        }
        .nav-list li a {
            color: #eee;
            padding: 0.5rem 1rem;
            border-radius: 30px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: background 0.25s, color 0.25s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .nav-list li a:hover,
        .nav-list li a.active {
            background: #d32f2f;
            color: #fff;
            text-decoration: none;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 0.3rem 0.6rem;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #eef0f5;
            padding: 0.7rem 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dde0e8;
        }
        .breadcrumb ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 0.4rem 0.2rem;
            padding: 0;
            margin: 0;
        }
        .breadcrumb ul li+li::before {
            content: "›";
            padding: 0 0.5rem;
            color: #888;
        }
        .breadcrumb a {
            color: #d32f2f;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #555;
            font-weight: 500;
        }
        .search-box {
            background: #fff;
            border-radius: 50px;
            padding: 0.3rem 0.3rem 0.3rem 1.2rem;
            display: flex;
            align-items: center;
            border: 2px solid #ddd;
            transition: border-color 0.25s;
            max-width: 320px;
            margin: 1.5rem 0 2rem;
        }
        .search-box:focus-within {
            border-color: #d32f2f;
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 0.6rem 0;
            font-size: 1rem;
            flex: 1;
            outline: none;
            min-width: 0;
        }
        .search-box button {
            background: #d32f2f;
            border: none;
            color: #fff;
            padding: 0.6rem 1.3rem;
            border-radius: 50px;
            font-size: 1rem;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-box button:hover {
            background: #b71c1c;
        }
        .content-area {
            background: #fff;
            border-radius: 20px;
            padding: 2rem 2.5rem;
            margin: 2rem 0;
            box-shadow: 0 8px 40px rgba(0, 0, 0, 0.05);
        }
        .featured-image {
            margin: 1.8rem 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.1);
        }
        .featured-image figcaption {
            background: #f0f2f8;
            padding: 0.8rem 1.2rem;
            font-size: 0.9rem;
            color: #555;
            text-align: center;
        }
        .last-updated {
            display: inline-block;
            background: #f0f2f8;
            padding: 0.3rem 1.2rem;
            border-radius: 30px;
            font-size: 0.85rem;
            color: #666;
            margin-bottom: 1.5rem;
        }
        .last-updated i {
            margin-right: 0.4rem;
            color: #d32f2f;
        }
        .highlight-box {
            background: #fef9e7;
            border-left: 5px solid #ffcc00;
            padding: 1.2rem 1.8rem;
            border-radius: 0 12px 12px 0;
            margin: 1.8rem 0;
        }
        .highlight-box strong {
            color: #b71c1c;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.2rem;
            margin: 2rem 0;
        }
        .stat-card {
            background: #f8f9fc;
            border-radius: 16px;
            padding: 1.4rem 1.2rem;
            text-align: center;
            border: 1px solid #e8ecf4;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.07);
        }
        .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #d32f2f;
        }
        .stat-card .label {
            font-size: 0.95rem;
            color: #555;
            margin-top: 0.3rem;
        }
        .emoji-big {
            font-size: 2rem;
            margin-right: 0.3rem;
        }
        .user-feedback {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin: 3rem 0 1.5rem;
            background: #f8f9fc;
            border-radius: 20px;
            padding: 2rem;
            border: 1px solid #e8ecf4;
        }
        .feedback-section h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 1.3rem;
        }
        .feedback-section form {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
            margin-top: 1rem;
        }
        .feedback-section input,
        .feedback-section textarea {
            padding: 0.7rem 1rem;
            border: 2px solid #ddd;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.25s;
            background: #fff;
        }
        .feedback-section input:focus,
        .feedback-section textarea:focus {
            border-color: #d32f2f;
            outline: none;
        }
        .feedback-section textarea {
            min-height: 80px;
            resize: vertical;
        }
        .feedback-section button {
            background: #d32f2f;
            color: #fff;
            border: none;
            padding: 0.7rem 1.5rem;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s, transform 0.15s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            justify-content: center;
        }
        .feedback-section button:hover {
            background: #b71c1c;
            transform: scale(1.02);
        }
        .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 {
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #ffcc00;
        }
        friend-link {
            display: block;
            background: #f0f2f8;
            border-radius: 16px;
            padding: 1.8rem 2rem;
            margin: 2.5rem 0 1rem;
            border: 1px solid #dde0e8;
        }
        friend-link h3 {
            margin-top: 0;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        friend-link ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem 1.2rem;
            margin: 1rem 0 0;
        }
        friend-link ul li a {
            color: #d32f2f;
            font-weight: 500;
            padding: 0.2rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
        }
        friend-link ul li a:hover {
            border-bottom-color: #d32f2f;
            text-decoration: none;
        }
        footer {
            background: #0d0d1a;
            color: #ccc;
            padding: 2.5rem 0 1.8rem;
            margin-top: 3rem;
            border-top: 4px solid #d32f2f;
        }
        footer .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.5rem;
        }
        footer .copy {
            font-size: 0.9rem;
            color: #888;
            text-align: center;
            width: 100%;
            margin-top: 1.5rem;
            padding-top: 1.2rem;
            border-top: 1px solid #2a2a4a;
        }
        footer .copy strong {
            color: #ddd;
        }
        @media (max-width: 768px) {
            .header-inner {
                flex-wrap: wrap;
            }
            .hamburger {
                display: block;
            }
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #1a1a3e;
                border-radius: 16px;
                padding: 0.8rem;
                margin-top: 0.6rem;
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list li a {
                padding: 0.7rem 1rem;
                border-radius: 10px;
            }
            .content-area {
                padding: 1.2rem 1.2rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.2rem;
            }
            .user-feedback {
                grid-template-columns: 1fr;
                gap: 1.5rem;
                padding: 1.2rem;
            }
            .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .search-box {
                max-width: 100%;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .breadcrumb ul {
                font-size: 0.8rem;
            }
            friend-link {
                padding: 1.2rem;
            }
            footer .footer-inner {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .stat-grid {
                grid-template-columns: 1fr;
            }
            .container {
                padding: 0 12px;
            }
            .content-area {
                padding: 0.8rem 0.8rem;
            }
            h1 {
                font-size: 1.5rem;
            }
        }
        @media print {
            header,
            .breadcrumb,
            .search-box,
            .user-feedback,
            footer {
                display: none;
            }
            .content-area {
                box-shadow: none;
                border: none;
                padding: 0;
            }
            body {
                background: #fff;
            }
        }