*,
        *::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: #1e2a3a;
            line-height: 1.7;
            padding: 0 1rem;
        }
        a {
            color: #1a6b8a;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #0d3b4f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1120px;
            margin: 0 auto;
            background: #ffffff;
            box-shadow: 0 0 40px rgba(0, 0, 0, 0.04);
            border-radius: 24px;
            padding: 1.5rem 2rem 2rem;
        }
        @media (max-width: 640px) {
            body {
                padding: 0 0.5rem;
            }
            .container {
                padding: 1rem;
                border-radius: 16px;
            }
        }
        h1,
        h2,
        h3,
        h4 {
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
            color: #0b1c2a;
        }
        h1 {
            font-size: 2.4rem;
            margin: 0.75rem 0 0.5rem;
            border-left: 6px solid #2b9b7a;
            padding-left: 1.2rem;
        }
        h2 {
            font-size: 1.8rem;
            margin: 2.2rem 0 1rem;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 0.4rem;
        }
        h3 {
            font-size: 1.35rem;
            margin: 1.8rem 0 0.6rem;
            color: #1a4a5e;
        }
        h4 {
            font-size: 1.1rem;
            margin: 1.2rem 0 0.4rem;
            color: #2d5f6e;
        }
        p {
            margin-bottom: 1.2rem;
        }
        .lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #2c3e50;
            background: #f0f7fa;
            padding: 1.2rem 1.6rem;
            border-radius: 16px;
            border-left: 4px solid #2b9b7a;
        }
        .emoji-lg {
            font-size: 1.4rem;
        }
        strong {
            color: #0b2a3a;
        }
        .highlight-box {
            background: #f1f9f5;
            padding: 1.4rem 1.8rem;
            border-radius: 16px;
            border: 1px solid #cfe8de;
            margin: 1.8rem 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .stat-badge {
            display: inline-block;
            background: #1e4a5e;
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            padding: 0.2rem 0.9rem;
            border-radius: 20px;
            letter-spacing: 0.3px;
        }
        .header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 0.6rem 0 1rem;
            border-bottom: 1px solid #e6edf2;
            position: relative;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #0b2a3a;
            background: linear-gradient(135deg, #1a6b8a, #2b9b7a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .my-logo i {
            -webkit-text-fill-color: #1a6b8a;
            font-size: 1.6rem;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 1px solid #d0dde5;
            font-size: 1.5rem;
            padding: 0.3rem 0.8rem;
            border-radius: 8px;
            cursor: pointer;
            color: #1a4a5e;
        }
        .nav-menu {
            display: flex;
            flex-wrap: wrap;
            gap: 0.2rem 0.8rem;
            align-items: center;
        }
        .nav-menu a {
            font-weight: 500;
            padding: 0.3rem 0.8rem;
            border-radius: 30px;
            font-size: 0.95rem;
            color: #1e3a4a;
        }
        .nav-menu a:hover {
            background: #e8f0f5;
            text-decoration: none;
            color: #0b2a3a;
        }
        .nav-menu a i {
            margin-right: 6px;
            font-size: 0.85rem;
            color: #2b9b7a;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: flex-start;
                padding: 1rem 0 0.5rem;
                gap: 0.5rem;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                padding: 0.5rem 1rem;
            }
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 0.4rem 0.6rem;
            font-size: 0.85rem;
            padding: 0.6rem 0 0.2rem;
            color: #5a6f7e;
        }
        .breadcrumb a {
            color: #1a6b8a;
        }
        .breadcrumb i {
            font-size: 0.7rem;
            color: #8aa3b3;
        }
        .breadcrumb .current {
            color: #2d4a5a;
            font-weight: 500;
        }
        .search-section {
            background: #f2f7fb;
            padding: 1.4rem 1.8rem;
            border-radius: 20px;
            margin: 1.8rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
        }
        .search-section label {
            font-weight: 600;
            color: #0b2a3a;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-section form {
            display: flex;
            flex: 1;
            gap: 0.5rem;
            flex-wrap: wrap;
        }
        .search-section input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 0.6rem 1rem;
            border: 1px solid #cbdae5;
            border-radius: 40px;
            font-size: 0.95rem;
            background: #fff;
            outline: none;
            transition: border 0.2s;
        }
        .search-section input[type="text"]:focus {
            border-color: #2b9b7a;
            box-shadow: 0 0 0 3px rgba(43, 155, 122, 0.15);
        }
        .search-section button {
            padding: 0.6rem 1.6rem;
            background: #1a6b8a;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.25s;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .search-section button:hover {
            background: #0d4b63;
        }
        .interaction-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.6rem;
            margin: 2.2rem 0 1.8rem;
        }
        @media (max-width: 680px) {
            .interaction-grid {
                grid-template-columns: 1fr;
            }
        }
        .comment-box,
        .score-box {
            background: #f8fbfd;
            border: 1px solid #e2edf5;
            border-radius: 20px;
            padding: 1.4rem 1.8rem;
        }
        .comment-box h3,
        .score-box h3 {
            margin-top: 0;
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .comment-box form,
        .score-box form {
            display: flex;
            flex-direction: column;
            gap: 0.7rem;
            margin-top: 0.6rem;
        }
        .comment-box textarea {
            resize: vertical;
            min-height: 80px;
            padding: 0.7rem 1rem;
            border: 1px solid #d0dee8;
            border-radius: 14px;
            font-family: inherit;
            font-size: 0.95rem;
            background: #fff;
            outline: none;
        }
        .comment-box textarea:focus {
            border-color: #2b9b7a;
            box-shadow: 0 0 0 3px rgba(43, 155, 122, 0.1);
        }
        .comment-box input[type="text"] {
            padding: 0.6rem 1rem;
            border: 1px solid #d0dee8;
            border-radius: 30px;
            font-size: 0.95rem;
            outline: none;
            background: #fff;
        }
        .comment-box input[type="text"]:focus {
            border-color: #2b9b7a;
        }
        .btn-submit {
            padding: 0.6rem 1.6rem;
            background: #2b9b7a;
            color: #fff;
            border: none;
            border-radius: 40px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.25s;
            align-self: flex-start;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .btn-submit:hover {
            background: #1e7d61;
        }
        .score-stars {
            display: flex;
            gap: 0.5rem;
            font-size: 1.8rem;
            color: #d0dae0;
            cursor: pointer;
            user-select: none;
        }
        .score-stars .star {
            transition: color 0.2s, transform 0.1s;
        }
        .score-stars .star.active,
        .score-stars .star:hover {
            color: #f5b342;
        }
        .score-stars .star:hover {
            transform: scale(1.15);
        }
        .score-box input[type="hidden"] {
            display: none;
        }
        .feature-img-wrap {
            margin: 2rem 0 1.8rem;
            border-radius: 16px;
            overflow: hidden;
            background: #eef4f8;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .feature-img-wrap img {
            width: 100%;
            max-height: 420px;
            object-fit: cover;
        }
        .feature-img-wrap figcaption {
            padding: 0.6rem 1.2rem;
            font-size: 0.9rem;
            color: #4d6a7a;
            background: #f8fcff;
            border-top: 1px solid #e6edf2;
        }
        .inline-link-list {
            background: #f4f9fd;
            padding: 1.2rem 1.6rem;
            border-radius: 16px;
            margin: 1.6rem 0;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem 1.2rem;
        }
        .inline-link-list a {
            font-weight: 500;
            font-size: 0.95rem;
        }
        .inline-link-list a i {
            margin-right: 6px;
            color: #2b9b7a;
        }
        .footer {
            margin-top: 3rem;
            padding-top: 1.8rem;
            border-top: 2px solid #e6edf2;
            font-size: 0.9rem;
            color: #3d5a6a;
        }
        .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 1.8rem;
        }
        friend-link {
            display: block;
            background: #f2f7fa;
            padding: 1.4rem 1.8rem;
            border-radius: 20px;
            flex: 1;
            min-width: 200px;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.8rem 0.2rem 0;
            font-weight: 500;
        }
        friend-link a i {
            margin-right: 5px;
            font-size: 0.8rem;
            color: #2b9b7a;
        }
        .copyright {
            margin-top: 1.4rem;
            padding-top: 1rem;
            border-top: 1px solid #dce6ed;
            text-align: center;
            font-size: 0.85rem;
            color: #5a7a8a;
        }
        .copyright strong {
            color: #1a4a5e;
        }
        @media (max-width: 480px) {
            h1 {
                font-size: 1.7rem;
                padding-left: 0.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .lead {
                font-size: 1rem;
                padding: 1rem;
            }
            .search-section {
                flex-direction: column;
                align-items: stretch;
            }
            .search-section form {
                flex-direction: column;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .footer-inner {
                flex-direction: column;
            }
        }
        .section-spacer {
            height: 0.5rem;
        }
        .article-content p {
            margin-bottom: 1.1rem;
        }
        .article-content ul,
        .article-content ol {
            margin: 0.6rem 0 1.2rem 1.6rem;
        }
        .article-content li {
            margin-bottom: 0.4rem;
        }
        .tip-card {
            background: #ffffff;
            border: 1px solid #e2edf5;
            border-radius: 16px;
            padding: 1.2rem 1.6rem;
            margin: 1.2rem 0;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
        }
        .tip-card i {
            color: #2b9b7a;
            margin-right: 8px;
        }
        .schema-hidden {
            display: none;
        }