* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            background: #f5f7fc;
            color: #1a1e2b;
            line-height: 1.7;
            font-size: 1.0625rem;
        }
        a {
            color: #2a4b7c;
            text-decoration: underline;
            transition: color 0.2s;
        }
        a:hover {
            color: #c0392b;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0b1a2e 0%, #1a3a5c 100%);
            color: #fff;
            padding: 16px 0 12px;
            border-bottom: 4px solid #e8b84c;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            color: #f0e6d0;
            text-decoration: none;
            background: rgba(255, 255, 255, 0.06);
            padding: 4px 16px 4px 12px;
            border-radius: 40px;
            border-left: 4px solid #e8b84c;
            transition: background 0.3s;
            display: inline-block;
        }
        .my-logo:hover {
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
        }
        .my-logo span {
            color: #e8b84c;
        }
        .nav-wrapper {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .nav-list {
            list-style: none;
            display: flex;
            gap: 6px 18px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav-list a {
            color: #d6e4f0;
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s, color 0.2s;
        }
        .nav-list a:hover {
            background: rgba(232, 184, 76, 0.2);
            color: #f0e6d0;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 6px;
            transition: background 0.2s;
        }
        .hamburger:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .breadcrumb {
            background: #eef2f7;
            padding: 10px 0;
            font-size: 0.9rem;
            border-bottom: 1px solid #dce3ed;
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px 12px;
            align-items: center;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin-right: 10px;
            color: #7f8c9b;
            font-weight: 600;
        }
        .breadcrumb a {
            color: #2a4b7c;
            text-decoration: none;
        }
        .breadcrumb a:hover {
            text-decoration: underline;
        }
        .breadcrumb .current {
            color: #4a5a6e;
            font-weight: 500;
        }
        main {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
        }
        @media (max-width: 960px) {
            .content-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        .article-body h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            color: #0b1a2e;
            margin-bottom: 8px;
            letter-spacing: -0.02em;
        }
        .article-body h1 span {
            color: #a52a2a;
        }
        .article-body .subtitle {
            font-size: 1.15rem;
            color: #3d4f66;
            margin-bottom: 24px;
            border-left: 4px solid #e8b84c;
            padding-left: 18px;
            font-weight: 400;
        }
        .article-body .meta-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            font-size: 0.92rem;
            color: #4d5f74;
            margin-bottom: 28px;
            padding-bottom: 16px;
            border-bottom: 1px solid #dce3ed;
        }
        .article-body .meta-bar i {
            margin-right: 6px;
            color: #7f8c9b;
        }
        .article-body h2 {
            font-size: 1.9rem;
            font-weight: 700;
            margin-top: 48px;
            margin-bottom: 16px;
            color: #0f2840;
            border-bottom: 2px solid #e8b84c;
            padding-bottom: 6px;
        }
        .article-body h3 {
            font-size: 1.45rem;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 10px;
            color: #1a3a5c;
        }
        .article-body h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 24px;
            margin-bottom: 8px;
            color: #2a4b7c;
        }
        .article-body p {
            margin-bottom: 18px;
            color: #1e2638;
        }
        .article-body p.lead {
            font-size: 1.2rem;
            font-weight: 400;
            color: #1f2c3e;
            background: #eef4fa;
            padding: 18px 22px;
            border-radius: 10px;
            border-left: 4px solid #2a4b7c;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 20px;
            padding-left: 28px;
        }
        .article-body li {
            margin-bottom: 6px;
        }
        .article-body blockquote {
            background: #eef4fa;
            border-left: 5px solid #e8b84c;
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 10px 10px 0;
            font-style: italic;
            color: #1f2c3e;
            font-size: 1.05rem;
        }
        .article-body blockquote strong {
            color: #0b1a2e;
        }
        .article-body .feature-img {
            margin: 28px 0;
            border-radius: 10px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .article-body .feature-img figcaption {
            font-size: 0.88rem;
            color: #4d5f74;
            text-align: center;
            margin-top: 8px;
            font-style: italic;
        }
        .highlight-box {
            background: linear-gradient(135deg, #f8f4ec, #f0ede8);
            padding: 20px 26px;
            border-radius: 12px;
            border: 1px solid #e2dcd0;
            margin: 28px 0;
        }
        .highlight-box strong {
            color: #a52a2a;
        }
        .insight-card {
            background: #fff;
            border-radius: 12px;
            padding: 20px 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
            border: 1px solid #e6ecf4;
            margin: 24px 0;
        }
        .insight-card h4 {
            margin-top: 0;
        }
        .sidebar {
            background: #fff;
            border-radius: 14px;
            padding: 24px 20px;
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.04);
            border: 1px solid #e6ecf4;
            align-self: start;
            position: sticky;
            top: 110px;
        }
        .sidebar h3 {
            font-size: 1.3rem;
            font-weight: 700;
            color: #0b1a2e;
            margin-bottom: 16px;
            border-bottom: 2px solid #e8b84c;
            padding-bottom: 8px;
        }
        .sidebar .link-list {
            list-style: none;
            padding: 0;
        }
        .sidebar .link-list li {
            margin-bottom: 8px;
            padding: 4px 0;
            border-bottom: 1px solid #edf2f9;
        }
        .sidebar .link-list a {
            text-decoration: none;
            font-weight: 500;
            display: block;
            padding: 2px 0;
        }
        .sidebar .link-list a:hover {
            color: #c0392b;
        }
        .search-section {
            background: #eef4fa;
            border-radius: 12px;
            padding: 20px 24px;
            margin: 32px 0 24px;
        }
        .search-section h3 {
            margin-top: 0;
            font-size: 1.2rem;
            color: #0b1a2e;
        }
        .search-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        .search-form input[type="text"] {
            flex: 1;
            min-width: 180px;
            padding: 12px 16px;
            border: 1px solid #cbd6e4;
            border-radius: 8px;
            font-size: 1rem;
            background: #fff;
        }
        .search-form button {
            padding: 12px 28px;
            background: #1a3a5c;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
        }
        .search-form button:hover {
            background: #0b1a2e;
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 32px 0;
        }
        @media (max-width: 700px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: #fff;
            border-radius: 12px;
            padding: 20px 24px;
            border: 1px solid #e6ecf4;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
        }
        .feedback-card h3 {
            margin-top: 0;
            font-size: 1.15rem;
            color: #0b1a2e;
            border-bottom: 2px solid #e8b84c;
            padding-bottom: 6px;
            margin-bottom: 16px;
        }
        .feedback-card textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #cbd6e4;
            border-radius: 8px;
            font-size: 0.95rem;
            resize: vertical;
            min-height: 80px;
            font-family: inherit;
        }
        .feedback-card input[type="number"],
        .feedback-card input[type="text"] {
            width: 100%;
            padding: 10px 14px;
            border: 1px solid #cbd6e4;
            border-radius: 8px;
            font-size: 0.95rem;
            margin-bottom: 10px;
        }
        .feedback-card .btn {
            padding: 10px 24px;
            background: #1a3a5c;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.25s;
            margin-top: 6px;
        }
        .feedback-card .btn:hover {
            background: #0b1a2e;
        }
        .star-rating {
            display: flex;
            gap: 4px;
            font-size: 1.8rem;
            color: #d4a847;
            margin: 6px 0 12px;
            cursor: pointer;
        }
        .star-rating i {
            transition: transform 0.15s, color 0.15s;
        }
        .star-rating i:hover {
            transform: scale(1.2);
            color: #f0c14b;
        }
        .site-footer {
            background: #0b1a2e;
            color: #c8d6e6;
            padding: 36px 0 20px;
            border-top: 4px solid #e8b84c;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        @media (max-width: 700px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .site-footer h4 {
            color: #f0e6d0;
            font-size: 1.1rem;
            margin-bottom: 12px;
            border-bottom: 1px solid #2a4b7c;
            padding-bottom: 6px;
        }
        friend-link {
            display: block;
            background: rgba(255, 255, 255, 0.04);
            padding: 12px 16px;
            border-radius: 8px;
            border-left: 3px solid #e8b84c;
            margin-top: 4px;
        }
        friend-link a {
            color: #b8d0e8;
            text-decoration: none;
            font-weight: 500;
        }
        friend-link a:hover {
            color: #e8b84c;
            text-decoration: underline;
        }
        .copyright {
            margin-top: 24px;
            padding-top: 16px;
            border-top: 1px solid #1f3a5a;
            font-size: 0.88rem;
            text-align: center;
            color: #8fa8c4;
        }
        @media (max-width: 768px) {
            .nav-list {
                display: none;
                flex-direction: column;
                width: 100%;
                background: #0f2840;
                padding: 16px 12px;
                border-radius: 0 0 12px 12px;
                gap: 8px;
                margin-top: 8px;
            }
            .nav-list.open {
                display: flex;
            }
            .hamburger {
                display: block;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .article-body h1 {
                font-size: 1.8rem;
            }
            .article-body h2 {
                font-size: 1.5rem;
            }
            .article-body h3 {
                font-size: 1.2rem;
            }
            .breadcrumb ol {
                font-size: 0.82rem;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .article-body h1 {
                font-size: 1.6rem;
            }
            .search-form input[type="text"],
            .search-form button {
                width: 100%;
            }
            .feedback-card textarea {
                min-height: 60px;
            }
        }
        @keyframes fadeUp {
            0% {
                opacity: 0;
                transform: translateY(12px);
            }
            100% {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .article-body>* {
            animation: fadeUp 0.3s ease forwards;
        }
        .article-body>*:nth-child(2) {
            animation-delay: 0.05s;
        }
        .article-body>*:nth-child(3) {
            animation-delay: 0.08s;
        }