*,
        *::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: #f4f7fb;
            color: #1a2639;
            line-height: 1.7;
            padding: 0 1rem;
            max-width: 1280px;
            margin: 0 auto;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: #1e6f9f;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover,
        a:focus-visible {
            color: #0a3b5c;
            text-decoration: underline;
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            margin-top: 1.8rem;
            margin-bottom: 0.8rem;
            color: #0b2b44;
        }
        h1 {
            font-size: 2.4rem;
            border-bottom: 4px solid #2a9d8f;
            padding-bottom: 0.4rem;
        }
        h2 {
            font-size: 1.9rem;
            border-left: 6px solid #2a9d8f;
            padding-left: 1rem;
            margin-top: 2.4rem;
        }
        h3 {
            font-size: 1.5rem;
            margin-top: 1.8rem;
        }
        h4 {
            font-size: 1.25rem;
            margin-top: 1.2rem;
            color: #2c3e50;
        }
        p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
        }
        .container {
            background: #ffffff;
            border-radius: 24px;
            padding: 1.8rem 2rem;
            margin: 1.2rem 0 2.5rem;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
        }
        .badge {
            display: inline-block;
            background: #e9f0f5;
            padding: 0.2rem 1rem;
            border-radius: 40px;
            font-size: 0.85rem;
            color: #1a4b6d;
            font-weight: 600;
        }
        hr {
            border: none;
            height: 2px;
            background: linear-gradient(90deg, #2a9d8f20, #2a9d8f, #2a9d8f20);
            margin: 2.5rem 0;
        }
        .emoji-big {
            font-size: 1.4em;
            margin-right: 0.2rem;
        }
        header {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 1.2rem 0 0.6rem;
            border-bottom: 1px solid #dce6ed;
            position: relative;
        }
        .my-logo {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(145deg, #1a4b6d, #2a9d8f);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            display: inline-block;
        }
        .my-logo i {
            -webkit-text-fill-color: #2a9d8f;
            margin-right: 0.3rem;
        }
        .logo-sub {
            font-size: 0.8rem;
            color: #5e7a93;
            letter-spacing: 0.3px;
            display: block;
            margin-top: -4px;
            font-weight: 400;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid #1a4b6d;
            border-radius: 8px;
            padding: 0.4rem 0.8rem;
            font-size: 1.6rem;
            cursor: pointer;
            color: #1a4b6d;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            background: #1a4b6d10;
        }
        nav {
            display: flex;
            gap: 0.2rem;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            padding: 0.5rem 1.2rem;
            border-radius: 40px;
            font-weight: 500;
            font-size: 0.95rem;
            color: #1a4b6d;
            transition: 0.2s;
        }
        nav a:hover {
            background: #e3eef6;
            text-decoration: none;
            color: #0b2b44;
        }
        nav a.active {
            background: #1a4b6d;
            color: #fff;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            padding: 0.8rem 0 0.2rem;
            font-size: 0.9rem;
            color: #5e7a93;
        }
        .breadcrumb li+li::before {
            content: "›";
            padding: 0 0.6rem;
            color: #b0c4d8;
        }
        .breadcrumb a {
            color: #2a6f97;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #1a2639;
            font-weight: 500;
        }
        .search-wrap {
            background: #e9f0f5;
            border-radius: 60px;
            padding: 0.2rem 0.2rem 0.2rem 1.5rem;
            display: flex;
            align-items: center;
            max-width: 500px;
            margin: 1.5rem 0 1rem;
            border: 1px solid #cbdae6;
            transition: 0.2s;
        }
        .search-wrap:focus-within {
            border-color: #2a9d8f;
            box-shadow: 0 0 0 3px #2a9d8f30;
        }
        .search-wrap input {
            flex: 1;
            border: none;
            background: transparent;
            padding: 0.8rem 0.2rem;
            font-size: 1rem;
            outline: none;
            color: #1a2639;
        }
        .search-wrap button {
            background: #2a9d8f;
            border: none;
            color: #fff;
            padding: 0.7rem 1.8rem;
            border-radius: 60px;
            font-weight: 600;
            font-size: 1rem;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .search-wrap button:hover {
            background: #1f7a6f;
        }
        .rating-area {
            background: #f8fbfe;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            margin: 2rem 0;
            border: 1px solid #dce6ed;
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
            justify-content: space-between;
        }
        .rating-stars {
            display: flex;
            gap: 0.3rem;
            font-size: 2rem;
            color: #e0c43a;
            cursor: pointer;
            transition: 0.1s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f0b429;
            transform: scale(1.1);
        }
        .rating-stars i {
            transition: 0.15s;
        }
        .rating-form {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
        }
        .rating-form input[type="number"] {
            width: 70px;
            padding: 0.5rem;
            border-radius: 8px;
            border: 1px solid #cbdae6;
            font-size: 1rem;
            text-align: center;
        }
        .rating-form button {
            background: #1a4b6d;
            color: #fff;
            border: none;
            padding: 0.6rem 1.5rem;
            border-radius: 60px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .rating-form button:hover {
            background: #0b2b44;
        }
        .comment-box {
            background: #f8fbfe;
            border-radius: 20px;
            padding: 1.8rem 2rem;
            margin: 1.8rem 0;
            border: 1px solid #dce6ed;
        }
        .comment-box textarea {
            width: 100%;
            border: 1px solid #cbdae6;
            border-radius: 16px;
            padding: 1rem;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            transition: 0.2s;
        }
        .comment-box textarea:focus {
            border-color: #2a9d8f;
            box-shadow: 0 0 0 3px #2a9d8f20;
            outline: none;
        }
        .comment-box .row {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-top: 0.8rem;
            align-items: center;
        }
        .comment-box input {
            flex: 1;
            min-width: 180px;
            padding: 0.7rem 1.2rem;
            border-radius: 60px;
            border: 1px solid #cbdae6;
            font-size: 1rem;
        }
        .comment-box input:focus {
            border-color: #2a9d8f;
            outline: none;
        }
        .comment-box button {
            background: #2a9d8f;
            color: #fff;
            border: none;
            padding: 0.7rem 2rem;
            border-radius: 60px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
        }
        .comment-box button:hover {
            background: #1f7a6f;
        }
        .feature-img {
            border-radius: 20px;
            overflow: hidden;
            margin: 2rem 0;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
        }
        .feature-img img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .feature-img figcaption {
            padding: 0.8rem 1.2rem;
            background: #f0f5fa;
            font-size: 0.9rem;
            color: #3a5a72;
            font-style: italic;
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
            gap: 0.8rem;
            margin: 1.5rem 0;
        }
        .link-grid a {
            background: #f0f5fa;
            padding: 0.6rem 1.2rem;
            border-radius: 40px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: 0.2s;
            border: 1px solid transparent;
        }
        .link-grid a:hover {
            background: #e3eef6;
            border-color: #b0c4d8;
            text-decoration: none;
        }
        footer {
            border-top: 1px solid #dce6ed;
            padding: 2rem 0 1.5rem;
            margin-top: 2rem;
        }
        footer .footer-inner {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 2rem;
        }
        friend-link {
            display: block;
            margin: 1rem 0;
        }
        friend-link a {
            display: inline-block;
            margin: 0.2rem 0.8rem 0.2rem 0;
            padding: 0.3rem 1rem;
            background: #eef3f8;
            border-radius: 30px;
            font-size: 0.9rem;
            transition: 0.2s;
        }
        friend-link a:hover {
            background: #dce6ed;
            text-decoration: none;
        }
        .copyright {
            font-size: 0.9rem;
            color: #5e7a93;
            margin-top: 1.2rem;
            text-align: center;
            border-top: 1px solid #e5edf3;
            padding-top: 1.2rem;
        }
        .copyright strong {
            color: #1a4b6d;
        }
        @media (max-width: 768px) {
            body {
                padding: 0 0.6rem;
            }
            .container {
                padding: 1rem 1.2rem;
            }
            h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.5rem;
            }
            h3 {
                font-size: 1.25rem;
            }
            header {
                flex-wrap: wrap;
            }
            .nav-toggle {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                background: #ffffff;
                border-radius: 16px;
                padding: 0.8rem 0;
                box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
                margin-top: 0.6rem;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 0.7rem 1.5rem;
                border-radius: 0;
                width: 100%;
            }
            .search-wrap {
                flex-direction: column;
                border-radius: 20px;
                padding: 0.8rem;
                background: #fff;
                border-color: #cbdae6;
            }
            .search-wrap input {
                width: 100%;
                padding: 0.6rem 0.2rem;
            }
            .search-wrap button {
                width: 100%;
                justify-content: center;
                margin-top: 0.4rem;
            }
            .rating-area {
                flex-direction: column;
                gap: 1rem;
                padding: 1.2rem;
            }
            .rating-stars {
                font-size: 1.6rem;
            }
            .comment-box {
                padding: 1.2rem;
            }
            .comment-box .row {
                flex-direction: column;
            }
            .comment-box input {
                width: 100%;
            }
            .link-grid {
                grid-template-columns: 1fr;
            }
            footer .footer-inner {
                flex-direction: column;
                gap: 1rem;
            }
        }
        @media (min-width: 769px) {
            .nav-toggle {
                display: none !important;
            }
            nav {
                display: flex !important;
            }
        }
        .schema-hidden {
            display: none;
        }
        .text-small {
            font-size: 0.9rem;
            color: #5e7a93;
        }
        .mt-1 {
            margin-top: 1rem;
        }
        .mb-1 {
            margin-bottom: 1rem;
        }
        .flex-wrap {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            align-items: center;
        }
        .last-updated {
            background: #e9f0f5;
            padding: 0.3rem 1.2rem;
            border-radius: 40px;
            display: inline-block;
            font-size: 0.9rem;
            color: #1a4b6d;
        }
        .highlight {
            background: #f9f3e0;
            padding: 0.1rem 0.4rem;
            border-radius: 6px;
        }
        .blockquote {
            border-left: 5px solid #2a9d8f;
            padding: 1rem 1.5rem;
            background: #f8fbfe;
            border-radius: 0 16px 16px 0;
            margin: 1.5rem 0;
            font-style: italic;
            color: #2c3e50;
        }
        .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 1rem;
            margin: 1.5rem 0;
        }
        .stat-card {
            background: #f0f5fa;
            border-radius: 16px;
            padding: 1.2rem;
            text-align: center;
        }
        .stat-card .num {
            font-size: 2rem;
            font-weight: 800;
            color: #1a4b6d;
        }
        .stat-card .label {
            font-size: 0.9rem;
            color: #5e7a93;
        }
        .tip-card {
            background: #e6f3f0;
            border-radius: 16px;
            padding: 1.2rem 1.5rem;
            margin: 1rem 0;
            border-left: 4px solid #2a9d8f;
        }