* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            background: #f8fafc;
            color: #0b1e33;
            line-height: 1.7;
            font-size: 16px;
            scroll-behavior: smooth;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(145deg, #0b1e33 0%, #1a3a5c 100%);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .my-logo {
            font-size: 1.75rem;
            font-weight: 800;
            color: #f5c842;
            text-decoration: none;
            letter-spacing: -0.5px;
            background: linear-gradient(to right, #f5c842, #f7d95e);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            transition: opacity 0.2s;
        }
        .my-logo:hover {
            opacity: 0.85;
        }
        .logo-sub {
            font-size: 0.7rem;
            color: #aac7e0;
            display: block;
            -webkit-text-fill-color: #aac7e0;
            letter-spacing: 1px;
            font-weight: 400;
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px;
            align-items: center;
        }
        .nav-list a {
            color: #e8f0fe;
            text-decoration: none;
            padding: 8px 16px;
            border-radius: 40px;
            font-size: 0.88rem;
            font-weight: 500;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #f5c842;
        }
        .nav-list .active {
            background: #f5c842;
            color: #0b1e33;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            font-size: 1.8rem;
            color: #f5c842;
            cursor: pointer;
            padding: 4px 8px;
            transition: transform 0.2s;
        }
        .hamburger:hover {
            transform: scale(1.1);
        }
        .nav-mobile {
            display: none;
            width: 100%;
            background: #0b1e33;
            border-radius: 0 0 20px 20px;
            padding: 16px 0 20px 0;
            margin-top: 12px;
        }
        .nav-mobile.open {
            display: block;
        }
        .nav-mobile ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .nav-mobile a {
            display: block;
            color: #e8f0fe;
            text-decoration: none;
            padding: 12px 20px;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 500;
            transition: background 0.2s;
        }
        .nav-mobile a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #f5c842;
        }
        .breadcrumb {
            background: transparent;
            padding: 14px 0 6px 0;
            font-size: 0.85rem;
            color: #4b6a8b;
        }
        .breadcrumb a {
            color: #1a5a8c;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb span {
            color: #7a8fa3;
        }
        .hero {
            padding: 30px 0 20px 0;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            background: linear-gradient(135deg, #0b1e33, #1a4a7a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 12px;
        }
        .hero .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 30px;
            color: #4b6a8b;
            font-size: 0.92rem;
            border-bottom: 1px solid #dce6ef;
            padding-bottom: 16px;
            margin-bottom: 24px;
        }
        .hero .meta i {
            margin-right: 6px;
            color: #f5c842;
        }
        .hero .last-updated {
            background: #eef3f9;
            padding: 4px 14px;
            border-radius: 30px;
            font-weight: 500;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding-bottom: 50px;
        }
        .main-article h2 {
            font-size: 2rem;
            font-weight: 700;
            margin: 40px 0 12px 0;
            color: #0b1e33;
            border-left: 5px solid #f5c842;
            padding-left: 16px;
        }
        .main-article h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin: 30px 0 10px 0;
            color: #1a3a5c;
        }
        .main-article h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 22px 0 8px 0;
            color: #2a4a6c;
        }
        .main-article p {
            margin-bottom: 18px;
            color: #1f3a4e;
            font-size: 1.02rem;
        }
        .main-article .highlight-box {
            background: #eef6fe;
            border-left: 6px solid #f5c842;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 24px 0;
        }
        .main-article .highlight-box p {
            margin-bottom: 0;
        }
        .main-article ul,
        .main-article ol {
            margin: 12px 0 20px 30px;
            color: #1f3a4e;
        }
        .main-article li {
            margin-bottom: 8px;
        }
        .main-article img {
            max-width: 100%;
            height: auto;
            border-radius: 16px;
            margin: 28px 0;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
            display: block;
        }
        .main-article .img-caption {
            font-size: 0.85rem;
            color: #5b7a9a;
            margin-top: -18px;
            margin-bottom: 24px;
            text-align: center;
            font-style: italic;
        }
        .main-article a {
            color: #1a6bb0;
            text-decoration: underline;
            text-underline-offset: 2px;
            transition: color 0.2s;
        }
        .main-article a:hover {
            color: #f5c842;
        }
        .main-article .emoji-big {
            font-size: 1.4rem;
            display: inline-block;
            margin-right: 4px;
        }
        .sidebar {
            background: #ffffff;
            border-radius: 20px;
            padding: 24px 20px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
            border: 1px solid #e8eef4;
            height: fit-content;
            position: sticky;
            top: 100px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #0b1e33;
        }
        .sidebar ul {
            list-style: none;
            padding: 0;
        }
        .sidebar li {
            margin-bottom: 10px;
        }
        .sidebar a {
            color: #1a5a8c;
            text-decoration: none;
            font-size: 0.95rem;
            display: block;
            padding: 8px 12px;
            border-radius: 10px;
            transition: background 0.2s, color 0.2s;
        }
        .sidebar a:hover {
            background: #eef3f9;
            color: #f5c842;
        }
        .sidebar .sidebar-search input {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #dce6ef;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
        }
        .sidebar .sidebar-search input:focus {
            border-color: #f5c842;
        }
        .sidebar .sidebar-search button {
            margin-top: 8px;
            width: 100%;
            padding: 12px;
            background: #0b1e33;
            color: #f5c842;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
        }
        .sidebar .sidebar-search button:hover {
            background: #1a3a5c;
        }
        .interaction-area {
            background: #ffffff;
            border-radius: 20px;
            padding: 30px 30px 36px 30px;
            margin: 40px 0 30px 0;
            border: 1px solid #e8eef4;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.03);
        }
        .interaction-area h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 20px;
            color: #0b1e33;
        }
        .rating-stars {
            display: flex;
            gap: 8px;
            font-size: 2rem;
            color: #dce6ef;
            cursor: pointer;
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .rating-stars i {
            transition: color 0.2s, transform 0.15s;
        }
        .rating-stars i:hover,
        .rating-stars i.active {
            color: #f5c842;
            transform: scale(1.15);
        }
        .rating-result {
            font-weight: 600;
            color: #1a3a5c;
            margin-bottom: 20px;
        }
        .comment-form textarea {
            width: 100%;
            padding: 16px 18px;
            border: 2px solid #dce6ef;
            border-radius: 16px;
            font-size: 1rem;
            font-family: inherit;
            resize: vertical;
            min-height: 100px;
            outline: none;
            transition: border 0.2s;
        }
        .comment-form textarea:focus {
            border-color: #f5c842;
        }
        .comment-form .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .comment-form .form-row input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border: 2px solid #dce6ef;
            border-radius: 40px;
            font-size: 0.95rem;
            outline: none;
            transition: border 0.2s;
        }
        .comment-form .form-row input:focus {
            border-color: #f5c842;
        }
        .comment-form .btn-submit {
            padding: 12px 32px;
            background: #0b1e33;
            color: #f5c842;
            border: none;
            border-radius: 40px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.15s;
        }
        .comment-form .btn-submit:hover {
            background: #1a3a5c;
            transform: scale(1.02);
        }
        footer {
            background: #0b1e33;
            color: #c8dae8;
            padding: 40px 0 28px 0;
            margin-top: 40px;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 30px;
            margin-bottom: 24px;
        }
        footer h4 {
            color: #f5c842;
            font-size: 1.1rem;
            margin-bottom: 12px;
        }
        footer a {
            color: #aac7e0;
            text-decoration: none;
            transition: color 0.2s;
        }
        footer a:hover {
            color: #f5c842;
        }
        friend-link {
            display: block;
            background: #112b44;
            padding: 20px 24px;
            border-radius: 16px;
            margin: 16px 0 24px 0;
        }
        friend-link h4 {
            color: #f5c842;
            margin-bottom: 12px;
            font-size: 1.1rem;
        }
        friend-link ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px 16px;
        }
        friend-link a {
            color: #b8d4ec;
            text-decoration: none;
            padding: 6px 14px;
            background: rgba(255, 255, 255, 0.06);
            border-radius: 30px;
            font-size: 0.9rem;
            transition: background 0.2s, color 0.2s;
        }
        friend-link a:hover {
            background: #f5c842;
            color: #0b1e33;
        }
        .copyright {
            border-top: 1px solid #1a3a5c;
            padding-top: 20px;
            font-size: 0.85rem;
            text-align: center;
            color: #7a9ab8;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
                margin-top: 30px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-list {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .main-article h2 {
                font-size: 1.6rem;
            }
            .main-article h3 {
                font-size: 1.25rem;
            }
            .interaction-area {
                padding: 20px;
            }
            footer .footer-grid {
                grid-template-columns: 1fr;
            }
            friend-link ul {
                flex-direction: column;
            }
        }
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.5rem;
            }
            .container {
                padding: 0 12px;
            }
            .main-article ul,
            .main-article ol {
                margin-left: 20px;
            }
            .rating-stars {
                font-size: 1.6rem;
            }
        }
        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #f5c842;
            color: #0b1e33;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s, visibility 0.3s, transform 0.2s;
            border: none;
            z-index: 50;
        }
        .scroll-top.visible {
            opacity: 1;
            visibility: visible;
        }
        .scroll-top:hover {
            transform: scale(1.08);
        }
        .tag {
            display: inline-block;
            background: #eef3f9;
            padding: 2px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            color: #1a5a8c;
            font-weight: 500;
        }
        .divider {
            height: 1px;
            background: linear-gradient(to right, transparent, #dce6ef, transparent);
            margin: 40px 0;
        }