* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f4f7fc;
            color: #1e2a3a;
            line-height: 1.7;
            font-size: 16px;
        }
        a {
            color: #0f6cbf;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #084a8a;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        header {
            background: linear-gradient(135deg, #0b1a2e, #1a3a5c);
            color: #fff;
            padding: 18px 0;
            border-bottom: 4px solid #f6b83d;
            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: 1.9rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #f6b83d;
            text-shadow: 0 2px 8px rgba(246, 184, 61, 0.3);
            transition: transform 0.2s;
            display: inline-block;
        }
        .my-logo:hover {
            transform: scale(1.02);
            text-decoration: none;
            color: #f6b83d;
        }
        .my-logo span {
            color: #8fcbff;
            font-weight: 300;
        }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #fff;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 6px 12px;
            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: #e0edff;
            padding: 8px 16px;
            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: 6px;
            font-size: 0.85rem;
        }
        .breadcrumb-wrap {
            background: #e8eef6;
            padding: 10px 0;
            border-bottom: 1px solid #d0dce8;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            font-size: 0.85rem;
            color: #4a5f73;
        }
        .breadcrumb li+li::before {
            content: "›";
            margin: 0 10px;
            color: #8a9fb0;
            font-weight: 700;
        }
        .breadcrumb a {
            color: #0f6cbf;
        }
        .breadcrumb .active {
            color: #2c3e50;
            font-weight: 600;
        }
        .hero {
            background: linear-gradient(145deg, #0f2640, #1c4a6e);
            color: #fff;
            padding: 50px 0 40px;
            margin-bottom: 30px;
            border-radius: 0 0 30px 30px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            letter-spacing: -1px;
            line-height: 1.15;
            margin-bottom: 16px;
        }
        .hero h1 i {
            color: #f6b83d;
            margin-right: 12px;
        }
        .hero p {
            font-size: 1.15rem;
            max-width: 750px;
            opacity: 0.9;
            margin-bottom: 10px;
        }
        .hero .meta {
            font-size: 0.9rem;
            opacity: 0.7;
            margin-top: 12px;
            display: flex;
            gap: 24px;
            flex-wrap: wrap;
        }
        .hero .meta i {
            margin-right: 6px;
        }
        .main-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin: 30px 0;
        }
        @media (max-width: 992px) {
            .main-grid {
                grid-template-columns: 1fr;
            }
        }
        .article-body h2 {
            font-size: 2rem;
            color: #0b1a2e;
            margin-top: 48px;
            margin-bottom: 18px;
            padding-bottom: 8px;
            border-bottom: 3px solid #f6b83d;
            display: inline-block;
        }
        .article-body h3 {
            font-size: 1.5rem;
            color: #1a3a5c;
            margin-top: 32px;
            margin-bottom: 12px;
        }
        .article-body h4 {
            font-size: 1.2rem;
            color: #2c4a6a;
            margin-top: 24px;
            margin-bottom: 8px;
            font-weight: 600;
        }
        .article-body p {
            margin-bottom: 18px;
            color: #2c3e50;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 20px 28px;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body .highlight-box {
            background: #e9f2fa;
            border-left: 5px solid #f6b83d;
            padding: 20px 24px;
            border-radius: 0 12px 12px 0;
            margin: 24px 0;
        }
        .article-body .highlight-box strong {
            color: #0b1a2e;
        }
        .article-body .stat-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 16px;
            margin: 24px 0;
        }
        .article-body .stat-card {
            background: #fff;
            border-radius: 14px;
            padding: 20px 16px;
            text-align: center;
            box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
            border: 1px solid #e0eaf2;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .article-body .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
        }
        .article-body .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #0f6cbf;
            display: block;
        }
        .article-body .stat-card .label {
            font-size: 0.9rem;
            color: #4a5f73;
            margin-top: 4px;
        }
        .article-body .interview-block {
            background: #f0f5fb;
            border-radius: 16px;
            padding: 24px 28px;
            margin: 28px 0;
            border: 1px solid #d0dce8;
        }
        .article-body .interview-block .q {
            font-weight: 700;
            color: #0b1a2e;
        }
        .article-body .interview-block .a {
            margin-left: 12px;
            color: #2c3e50;
        }
        .article-body .featured-image {
            margin: 30px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .sidebar {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .sidebar .card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #e0eaf2;
        }
        .sidebar .card h3 {
            font-size: 1.2rem;
            color: #0b1a2e;
            margin-bottom: 14px;
            border-bottom: 2px solid #f6b83d;
            padding-bottom: 8px;
        }
        .sidebar .link-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar .link-list li {
            margin-bottom: 10px;
            border-bottom: 1px solid #edf2f7;
            padding-bottom: 10px;
        }
        .sidebar .link-list li:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }
        .sidebar .link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.92rem;
        }
        .sidebar .link-list a i {
            color: #f6b83d;
            font-size: 0.7rem;
        }
        .form-card {
            background: #fff;
            border-radius: 16px;
            padding: 28px 30px;
            margin: 30px 0;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
            border: 1px solid #e0eaf2;
        }
        .form-card h3 {
            font-size: 1.4rem;
            color: #0b1a2e;
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .form-card h3 i {
            color: #f6b83d;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-weight: 600;
            margin-bottom: 4px;
            color: #1e2a3a;
            font-size: 0.92rem;
        }
        .form-group input,
        .form-group textarea,
        .form-group select {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #d0dce8;
            border-radius: 10px;
            font-size: 1rem;
            font-family: inherit;
            transition: border-color 0.25s, box-shadow 0.25s;
            background: #fafcff;
        }
        .form-group input:focus,
        .form-group textarea:focus,
        .form-group select:focus {
            outline: none;
            border-color: #0f6cbf;
            box-shadow: 0 0 0 4px rgba(15, 108, 191, 0.1);
        }
        .form-group textarea {
            min-height: 100px;
            resize: vertical;
        }
        .btn {
            background: #0f6cbf;
            color: #fff;
            border: none;
            padding: 12px 30px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.25s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .btn:hover {
            background: #084a8a;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(15, 108, 191, 0.25);
        }
        .btn-secondary {
            background: #e8eef6;
            color: #0b1a2e;
        }
        .btn-secondary:hover {
            background: #d0dce8;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }
        .star-rating {
            display: flex;
            gap: 6px;
            font-size: 1.8rem;
            color: #d0dce8;
            cursor: pointer;
            direction: rtl;
        }
        .star-rating i {
            transition: color 0.2s, transform 0.15s;
        }
        .star-rating i:hover,
        .star-rating i:hover~i {
            color: #f6b83d;
            transform: scale(1.1);
        }
        .star-rating .active {
            color: #f6b83d;
        }
        footer {
            background: #0b1a2e;
            color: #b0c8dd;
            padding: 40px 0 20px;
            margin-top: 50px;
            border-top: 4px solid #f6b83d;
        }
        footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            margin-bottom: 30px;
        }
        footer h4 {
            color: #f6b83d;
            margin-bottom: 14px;
            font-size: 1.1rem;
        }
        footer a {
            color: #8fcbff;
        }
        footer a:hover {
            color: #fff;
        }
        friend-link {
            display: block;
            padding: 12px 0;
            border-top: 1px solid #1e3a5a;
            margin-top: 12px;
            font-size: 0.9rem;
        }
        friend-link a {
            margin: 0 6px;
        }
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #1e3a5a;
            font-size: 0.85rem;
            color: #6a8aa8;
        }
        .copyright strong {
            color: #b0c8dd;
        }
        @media (max-width: 768px) {
            .hamburger {
                display: block;
            }
            nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                margin-top: 12px;
                background: #0f2640;
                padding: 12px 8px;
                border-radius: 12px;
                gap: 2px;
            }
            nav.open {
                display: flex;
            }
            nav a {
                padding: 10px 16px;
                border-radius: 8px;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .hero h1 i {
                display: block;
                margin-bottom: 6px;
            }
            .hero {
                padding: 30px 0 24px;
            }
            .article-body h2 {
                font-size: 1.6rem;
            }
            .article-body h3 {
                font-size: 1.3rem;
            }
            .main-grid {
                gap: 24px;
            }
            .form-card {
                padding: 20px;
            }
            .header-inner {
                align-items: center;
            }
            .my-logo {
                font-size: 1.5rem;
            }
            .breadcrumb {
                font-size: 0.75rem;
            }
            .breadcrumb li+li::before {
                margin: 0 6px;
            }
            .sidebar {
                position: static;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 14px;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .article-body .stat-grid {
                grid-template-columns: 1fr 1fr;
            }
            .star-rating {
                font-size: 1.5rem;
            }
        }
        .toc {
            background: #eef4fa;
            border-radius: 14px;
            padding: 18px 22px;
            margin: 20px 0 28px;
            border: 1px solid #d0dce8;
        }
        .toc summary {
            font-weight: 700;
            font-size: 1.1rem;
            color: #0b1a2e;
            cursor: pointer;
        }
        .toc ol {
            margin: 12px 0 0 22px;
        }
        .toc ol a {
            color: #0f6cbf;
        }
        .badge {
            display: inline-block;
            background: #f6b83d;
            color: #0b1a2e;
            padding: 2px 12px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .last-updated {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #e8eef6;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            color: #2c4a6a;
        }
        .last-updated i {
            color: #f6b83d;
        }