* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #f6f8fa;
            color: #1a1a2e;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #0f4c5c;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #e36414;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1180px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: #ffffff;
            border-bottom: 2px solid #e0e6ed;
            padding: 14px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #0f4c5c, #e36414);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: #1a1a2e;
            cursor: pointer;
            padding: 4px 8px;
        }
        .nav-menu {
            display: flex;
            gap: 24px;
            list-style: none;
            align-items: center;
        }
        .nav-menu a {
            font-weight: 600;
            font-size: 0.95rem;
            padding: 6px 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.2s;
        }
        .nav-menu a:hover {
            border-bottom-color: #e36414;
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                width: 100%;
                flex-direction: column;
                gap: 10px;
                padding: 16px 0 8px;
                border-top: 1px solid #e0e6ed;
                margin-top: 12px;
            }
            .nav-menu.open {
                display: flex;
            }
        }
        .breadcrumb {
            background: #ffffff;
            padding: 12px 0;
            border-bottom: 1px solid #eaeef3;
            font-size: 0.9rem;
        }
        .breadcrumb-list {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            list-style: none;
        }
        .breadcrumb-list li+li::before {
            content: "›";
            margin-right: 12px;
            color: #9aa6b2;
        }
        .breadcrumb-list a {
            color: #0f4c5c;
        }
        .breadcrumb-list .current {
            color: #6c757d;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 40px 0;
        }
        @media (max-width: 900px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }
        .main-article h1 {
            font-size: 2.4rem;
            line-height: 1.2;
            margin-bottom: 12px;
            color: #0a1a2a;
        }
        .main-article h2 {
            font-size: 1.7rem;
            margin: 40px 0 16px;
            color: #0f4c5c;
            border-left: 4px solid #e36414;
            padding-left: 16px;
        }
        .main-article h3 {
            font-size: 1.3rem;
            margin: 28px 0 10px;
            color: #1a3a4a;
        }
        .main-article h4 {
            font-size: 1.1rem;
            margin: 20px 0 8px;
            color: #2a4a5a;
        }
        .main-article p {
            margin-bottom: 18px;
        }
        .main-article ul,
        .main-article ol {
            margin: 0 0 20px 24px;
        }
        .main-article li {
            margin-bottom: 6px;
        }
        .main-article strong {
            color: #0a2a3a;
        }
        .main-article .emoji-icon {
            font-size: 1.2rem;
            margin-right: 4px;
        }
        .last-updated {
            font-size: 0.9rem;
            color: #6c757d;
            margin-bottom: 24px;
            padding-bottom: 12px;
            border-bottom: 1px dashed #d0d8e0;
        }
        .featured-image {
            margin: 30px 0;
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(0,0,0,0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            aspect-ratio: 16/9;
            object-fit: cover;
        }
        .featured-image figcaption {
            padding: 10px 16px;
            background: #f0f4f8;
            font-size: 0.9rem;
            color: #4a5a6a;
        }
        .sidebar {
            position: sticky;
            top: 100px;
            align-self: start;
        }
        .sidebar-card {
            background: #ffffff;
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 24px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 12px;
            color: #0f4c5c;
            border-bottom: 2px solid #eaeef3;
            padding-bottom: 8px;
        }
        .sidebar-links {
            list-style: none;
        }
        .sidebar-links li {
            margin-bottom: 8px;
        }
        .sidebar-links a {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            padding: 4px 0;
        }
        .sidebar-links a i {
            width: 18px;
            color: #e36414;
        }
        .search-form {
            display: flex;
            gap: 8px;
        }
        .search-form input {
            flex: 1;
            padding: 10px 14px;
            border: 1px solid #d0d8e0;
            border-radius: 8px;
            font-size: 0.95rem;
            outline: none;
            transition: border-color 0.2s;
        }
        .search-form input:focus {
            border-color: #0f4c5c;
        }
        .search-form button {
            background: #0f4c5c;
            color: #fff;
            border: none;
            padding: 10px 18px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 0.95rem;
            transition: background 0.2s;
        }
        .search-form button:hover {
            background: #1a6a7a;
        }
        .comment-section,
        .rating-section {
            background: #ffffff;
            border-radius: 12px;
            padding: 24px;
            margin: 40px 0;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
        }
        .comment-section h2,
        .rating-section h2 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: #0f4c5c;
            border-left: 4px solid #e36414;
            padding-left: 16px;
        }
        .comment-form textarea,
        .comment-form input {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid #d0d8e0;
            border-radius: 8px;
            font-size: 0.95rem;
            margin-bottom: 12px;
            font-family: inherit;
            outline: none;
            transition: border-color 0.2s;
        }
        .comment-form textarea:focus,
        .comment-form input:focus {
            border-color: #0f4c5c;
        }
        .comment-form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .comment-form button,
        .rating-form button {
            background: #e36414;
            color: #fff;
            border: none;
            padding: 12px 28px;
            border-radius: 8px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: background 0.2s;
        }
        .comment-form button:hover,
        .rating-form button:hover {
            background: #c9540e;
        }
        .rating-stars {
            display: flex;
            gap: 6px;
            margin-bottom: 12px;
            font-size: 1.8rem;
            color: #e0e0e0;
            cursor: pointer;
        }
        .rating-stars i.active {
            color: #ffb703;
        }
        .rating-stars i:hover,
        .rating-stars i.hover {
            color: #ffb703;
        }
        friend-link {
            display: block;
            margin: 40px 0 20px;
            padding: 20px;
            background: #ffffff;
            border-radius: 12px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
        }
        friend-link h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
            color: #0f4c5c;
        }
        .friend-list {
            display: flex;
            flex-wrap: wrap;
            gap: 12px 24px;
            list-style: none;
        }
        .friend-list a {
            font-size: 0.95rem;
            padding: 4px 0;
            border-bottom: 1px solid transparent;
        }
        .friend-list a:hover {
            border-bottom-color: #e36414;
        }
        .site-footer {
            background: #0f1a24;
            color: #c8d0d8;
            padding: 32px 0 24px;
            margin-top: 40px;
            font-size: 0.9rem;
        }
        .site-footer .container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 16px;
        }
        .site-footer a {
            color: #9ab0c0;
        }
        .site-footer a:hover {
            color: #ffffff;
        }
        .copyright {
            width: 100%;
            text-align: center;
            padding-top: 16px;
            border-top: 1px solid #2a3a4a;
            margin-top: 12px;
            font-size: 0.85rem;
            color: #7a8a9a;
        }
        @media (max-width: 600px) {
            .main-article h1 {
                font-size: 1.7rem;
            }
            .main-article h2 {
                font-size: 1.3rem;
            }
            .main-article h3 {
                font-size: 1.1rem;
            }
            .header-inner {
                padding: 0 4px;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .sidebar {
                position: static;
            }
            .content-grid {
                padding: 20px 0;
                gap: 20px;
            }
        }
        .text-muted {
            color: #6c757d;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .inline-link {
            font-weight: 600;
            border-bottom: 1px dotted #0f4c5c;
        }