*,
        *::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, 'Helvetica Neue', sans-serif;
            background: #f8f6f2;
            color: #1e2a3a;
            line-height: 1.7;
            padding: 0;
            margin: 0;
        }
        a {
            color: #1a5f7a;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #0d3b4f;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(145deg, #0f2a3b 0%, #1a4a5e 100%);
            color: #fff;
            padding: 0 0 6px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 12px 20px;
            max-width: 1180px;
            margin: 0 auto;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f2e8d5;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
            transition: transform 0.2s;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #f2e8d5;
        }
        .my-logo span {
            color: #ffcd94;
        }
        .my-logo small {
            font-size: 0.6rem;
            font-weight: 400;
            display: block;
            letter-spacing: 2px;
            color: #b8d4e0;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 10px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        nav {
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
            align-items: center;
        }
        nav a {
            color: #e2edf2;
            padding: 6px 14px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 500;
            transition: all 0.25s;
            white-space: nowrap;
        }
        nav a:hover {
            background: rgba(255, 255, 255, 0.15);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }
        nav a i {
            margin-right: 5px;
            font-size: 0.8rem;
        }
        .breadcrumb {
            background: #ece7de;
            padding: 8px 20px;
            font-size: 0.85rem;
            color: #4a5a6a;
            border-bottom: 1px solid #dcd5c8;
        }
        .breadcrumb a {
            color: #1a5f7a;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb i {
            margin: 0 6px;
            font-size: 0.6rem;
            color: #8a9aaa;
        }
        .breadcrumb .current {
            color: #1e2a3a;
            font-weight: 600;
        }
        main {
            padding: 30px 0 50px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        @media(max-width:860px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .article-body h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0f2a3b;
            margin-bottom: 10px;
            letter-spacing: -0.5px;
        }
        .article-body h1 i {
            color: #1a5f7a;
            font-size: 2rem;
            margin-right: 10px;
        }
        .article-body .subhead {
            font-size: 1.15rem;
            color: #4a5a6a;
            margin-bottom: 24px;
            border-left: 4px solid #1a5f7a;
            padding-left: 16px;
        }
        .article-body .meta-line {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 0.9rem;
            color: #6a7a8a;
            margin-bottom: 28px;
            border-bottom: 1px solid #e0d8cc;
            padding-bottom: 14px;
        }
        .article-body .meta-line i {
            margin-right: 5px;
            color: #1a5f7a;
        }
        .article-body .last-updated {
            background: #e8f0f4;
            padding: 4px 14px;
            border-radius: 20px;
            font-weight: 600;
            font-size: 0.8rem;
        }
        h2 {
            font-size: 1.9rem;
            font-weight: 700;
            color: #0f2a3b;
            margin-top: 50px;
            margin-bottom: 16px;
            border-bottom: 3px solid #ffcd94;
            padding-bottom: 6px;
        }
        h2 i {
            color: #1a5f7a;
            margin-right: 10px;
        }
        h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: #1a3a4a;
            margin-top: 32px;
            margin-bottom: 10px;
        }
        h3 i {
            color: #ff9f4a;
            margin-right: 8px;
        }
        h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: #2a4a5a;
            margin-top: 22px;
            margin-bottom: 6px;
        }
        p {
            margin-bottom: 16px;
            font-size: 1.02rem;
            color: #1e2a3a;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 18px;
            padding-left: 26px;
        }
        .article-body li {
            margin-bottom: 6px;
            font-size: 1.02rem;
        }
        .highlight-box {
            background: #eef4f8;
            border-left: 5px solid #1a5f7a;
            padding: 20px 26px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .highlight-box.alt {
            border-left-color: #ff9f4a;
            background: #fdf7ef;
        }
        .highlight-box.alt2 {
            border-left-color: #2a8a6a;
            background: #eef8f4;
        }
        .highlight-box h4 {
            margin-top: 0;
        }
        .highlight-box p:last-child {
            margin-bottom: 0;
        }
        .btn-like {
            display: inline-block;
            background: #1a5f7a;
            color: #fff;
            padding: 8px 22px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: background 0.2s, transform 0.15s;
            border: none;
            cursor: pointer;
        }
        .btn-like:hover {
            background: #0d3b4f;
            transform: translateY(-2px);
            text-decoration: none;
            color: #fff;
        }
        .btn-like i {
            margin-right: 6px;
        }
        .feature-img {
            margin: 30px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
            background: #e8e2d8;
        }
        .feature-img img {
            width: 100%;
            height: auto;
            display: block;
        }
        .feature-img figcaption {
            padding: 10px 18px;
            background: #f2ece4;
            font-size: 0.85rem;
            color: #4a5a6a;
            font-style: italic;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 22px 20px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            margin-bottom: 24px;
            border: 1px solid #e8e0d4;
        }
        .sidebar-card h3 {
            font-size: 1.2rem;
            margin-top: 0;
            border-bottom: 2px solid #ffcd94;
            padding-bottom: 8px;
            margin-bottom: 14px;
            color: #0f2a3b;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 8px;
        }
        .sidebar-card li a {
            display: block;
            padding: 6px 10px;
            border-radius: 8px;
            transition: background 0.2s;
            font-size: 0.95rem;
        }
        .sidebar-card li a:hover {
            background: #f0f4f8;
            text-decoration: none;
        }
        .sidebar-card li a i {
            color: #1a5f7a;
            width: 20px;
            margin-right: 6px;
        }
        .rating-stars {
            color: #ffb347;
            font-size: 1.2rem;
            letter-spacing: 2px;
        }
        .interaction-area {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 20px;
            margin: 40px 0 30px;
        }
        @media(max-width:700px) {
            .interaction-area {
                grid-template-columns: 1fr;
            }
        }
        .interact-card {
            background: #fff;
            border-radius: 16px;
            padding: 22px 20px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #e8e0d4;
        }
        .interact-card h3 {
            margin-top: 0;
            font-size: 1.15rem;
            border-bottom: 2px solid #e8e0d4;
            padding-bottom: 8px;
            margin-bottom: 14px;
        }
        .interact-card h3 i {
            margin-right: 8px;
            color: #1a5f7a;
        }
        .interact-card form {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .interact-card input,
        .interact-card textarea,
        .interact-card select {
            padding: 10px 14px;
            border: 1px solid #d5cdc0;
            border-radius: 10px;
            font-size: 0.95rem;
            font-family: inherit;
            background: #faf8f5;
            transition: border 0.2s;
        }
        .interact-card input:focus,
        .interact-card textarea:focus,
        .interact-card select:focus {
            border-color: #1a5f7a;
            outline: none;
            box-shadow: 0 0 0 3px rgba(26, 95, 122, 0.15);
        }
        .interact-card textarea {
            min-height: 60px;
            resize: vertical;
        }
        .interact-card button {
            background: #1a5f7a;
            color: #fff;
            border: none;
            padding: 10px 16px;
            border-radius: 30px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }
        .interact-card button:hover {
            background: #0d3b4f;
            transform: translateY(-1px);
        }
        .interact-card button i {
            margin-right: 6px;
        }
        footer {
            background: #0f2a3b;
            color: #c8d8e0;
            padding: 40px 20px 20px;
            margin-top: 30px;
        }
        .footer-inner {
            max-width: 1180px;
            margin: 0 auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }
        @media(max-width:700px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        .footer-grid h4 {
            color: #ffcd94;
            font-size: 1.1rem;
            margin-bottom: 12px;
            border-bottom: 1px solid #2a4a5a;
            padding-bottom: 6px;
        }
        .footer-grid a {
            color: #b8d4e0;
            display: block;
            padding: 3px 0;
            font-size: 0.9rem;
        }
        .footer-grid a:hover {
            color: #ffcd94;
            text-decoration: none;
        }
        friend-link {
            display: block;
            margin-top: 10px;
        }
        friend-link a {
            display: inline-block;
            margin: 2px 10px 2px 0;
            padding: 4px 12px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 20px;
            font-size: 0.85rem;
        }
        friend-link a:hover {
            background: rgba(255, 255, 255, 0.12);
        }
        .copyright {
            border-top: 1px solid #2a4a5a;
            padding-top: 18px;
            text-align: center;
            font-size: 0.85rem;
            color: #8aa0b0;
        }
        .copyright a {
            color: #b8d4e0;
        }
        @media(max-width:768px) {
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding: 10px 0 6px;
                gap: 4px;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 10px 16px;
                border-radius: 10px;
                white-space: normal;
            }
            .article-body h1 {
                font-size: 1.8rem;
            }
            h2 {
                font-size: 1.4rem;
            }
            h3 {
                font-size: 1.15rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .my-logo small {
                font-size: 0.5rem;
            }
            .feature-img {
                margin: 20px 0;
            }
            .interaction-area {
                grid-template-columns: 1fr;
            }
        }
        @media(max-width:480px) {
            .container {
                padding: 0 12px;
            }
            .article-body h1 {
                font-size: 1.5rem;
            }
            .header-inner {
                padding: 10px 12px;
            }
            .breadcrumb {
                padding: 6px 12px;
                font-size: 0.75rem;
            }
        }
        .anchor-offset {
            scroll-margin-top: 90px;
        }
        .eeat-badge {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            background: #f2f6f8;
            border-radius: 14px;
            padding: 16px 20px;
            margin: 24px 0;
            border: 1px solid #dce4e8;
            font-size: 0.9rem;
        }
        .eeat-badge i {
            color: #1a5f7a;
            margin-right: 6px;
        }
        .eeat-badge span {
            margin-right: 18px;
        }