* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Roboto, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
            background: #f5f7fa;
            color: #1a1a2e;
            line-height: 1.8;
            font-size: 16px;
            scroll-behavior: smooth;
        }
        a {
            color: #0066cc;
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: #004499;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 12px;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .site-header {
            background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: 1px;
            background: linear-gradient(135deg, #f7971e, #ffd200);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none;
            transition: transform 0.3s;
        }
        .my-logo:hover {
            transform: scale(1.03);
            text-decoration: none;
        }
        .my-logo i {
            -webkit-text-fill-color: initial;
            color: #ffd200;
            margin-right: 6px;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.6rem;
            padding: 6px 14px;
            border-radius: 8px;
            cursor: pointer;
            transition: background 0.3s;
        }
        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .main-nav {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .main-nav a {
            color: #e0e0ff;
            padding: 8px 16px;
            border-radius: 30px;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.25s;
            white-space: nowrap;
        }
        .main-nav a:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
        }
        .main-nav a i {
            margin-right: 6px;
        }
        .breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid #e4e7ec;
            padding: 10px 0;
            font-size: 0.9rem;
        }
        .breadcrumb-wrap .container {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb-wrap a {
            color: #555;
        }
        .breadcrumb-wrap a:hover {
            color: #0066cc;
        }
        .breadcrumb-wrap span {
            color: #999;
            margin: 0 4px;
        }
        .breadcrumb-wrap .current {
            color: #1a1a2e;
            font-weight: 600;
        }
        .content-wrap {
            padding: 40px 0 60px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
        }
        .main-article {
            background: #fff;
            border-radius: 20px;
            padding: 40px 45px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        .main-article h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            color: #0f0c29;
            background: linear-gradient(135deg, #0f0c29, #302b63);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .main-article .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            color: #777;
            font-size: 0.95rem;
            margin-bottom: 24px;
            padding-bottom: 20px;
            border-bottom: 1px solid #eee;
        }
        .main-article .meta i {
            margin-right: 6px;
            color: #f7971e;
        }
        .main-article h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-top: 48px;
            margin-bottom: 18px;
            color: #1a1a2e;
            border-left: 5px solid #f7971e;
            padding-left: 18px;
        }
        .main-article h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: #2d2d44;
        }
        .main-article h4 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 24px;
            margin-bottom: 10px;
            color: #3d3d5c;
        }
        .main-article p {
            margin-bottom: 18px;
            color: #2c2c3e;
            font-size: 1.05rem;
        }
        .main-article ul,
        .main-article ol {
            margin: 16px 0 20px 28px;
            color: #2c2c3e;
        }
        .main-article li {
            margin-bottom: 10px;
            font-size: 1.02rem;
        }
        .main-article strong {
            color: #0f0c29;
        }
        .main-article .highlight-box {
            background: #f0f4ff;
            border-left: 4px solid #302b63;
            padding: 20px 24px;
            border-radius: 12px;
            margin: 24px 0;
        }
        .main-article .highlight-box i {
            color: #302b63;
            margin-right: 8px;
        }
        .featured-image {
            margin: 28px 0;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
        }
        .featured-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }
        .featured-image figcaption {
            background: #f8f9fc;
            padding: 10px 16px;
            font-size: 0.9rem;
            color: #666;
            text-align: center;
        }
        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        .sidebar-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px 22px;
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05);
        }
        .sidebar-card h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #0f0c29;
            border-bottom: 2px solid #f0f0f5;
            padding-bottom: 10px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card li {
            margin-bottom: 12px;
        }
        .sidebar-card li a {
            color: #333;
            font-weight: 500;
            display: block;
            padding: 6px 0;
            border-bottom: 1px solid #f0f0f5;
            transition: all 0.2s;
        }
        .sidebar-card li a:hover {
            color: #f7971e;
            padding-left: 6px;
            text-decoration: none;
        }
        .sidebar-card li a i {
            color: #f7971e;
            margin-right: 8px;
            font-size: 0.85rem;
        }
        .search-form {
            display: flex;
            gap: 10px;
            margin: 20px 0 10px;
        }
        .search-form input {
            flex: 1;
            padding: 12px 18px;
            border: 2px solid #e0e0e0;
            border-radius: 30px;
            font-size: 1rem;
            outline: none;
            transition: border 0.3s;
        }
        .search-form input:focus {
            border-color: #302b63;
        }
        .search-form button {
            background: linear-gradient(135deg, #f7971e, #ffd200);
            border: none;
            border-radius: 30px;
            padding: 0 24px;
            font-size: 1.1rem;
            color: #1a1a2e;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .search-form button:hover {
            transform: scale(1.03);
            box-shadow: 0 4px 15px rgba(247, 151, 30, 0.4);
        }
        .feedback-section {
            margin-top: 50px;
            padding-top: 30px;
            border-top: 2px solid #eee;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
        }
        .feedback-card {
            background: #f9faff;
            border-radius: 16px;
            padding: 24px 28px;
            border: 1px solid #e8ecf5;
        }
        .feedback-card h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: #0f0c29;
        }
        .feedback-card h3 i {
            color: #f7971e;
            margin-right: 8px;
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .feedback-card input,
        .feedback-card textarea,
        .feedback-card select {
            padding: 12px 16px;
            border: 2px solid #e0e4ee;
            border-radius: 10px;
            font-size: 1rem;
            outline: none;
            font-family: inherit;
            transition: border 0.3s;
            background: #fff;
        }
        .feedback-card input:focus,
        .feedback-card textarea:focus,
        .feedback-card select:focus {
            border-color: #302b63;
        }
        .feedback-card textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card .btn-submit {
            background: linear-gradient(135deg, #302b63, #24243e);
            color: #fff;
            border: none;
            padding: 14px 24px;
            border-radius: 30px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            letter-spacing: 0.5px;
        }
        .feedback-card .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(48, 43, 99, 0.3);
        }
        .star-rating {
            display: flex;
            flex-direction: row-reverse;
            justify-content: flex-end;
            gap: 4px;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: #ddd;
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating label:hover,
        .star-rating label:hover~label,
        .star-rating input:checked~label {
            color: #f7971e;
        }
        friend-link {
            display: block;
            background: #1a1a2e;
            color: #ccc;
            padding: 40px 0 30px;
            margin-top: 0;
        }
        friend-link .container {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px 28px;
        }
        friend-link a {
            color: #aaa;
            font-size: 0.95rem;
            transition: color 0.2s;
            position: relative;
        }
        friend-link a:hover {
            color: #ffd200;
            text-decoration: none;
        }
        friend-link a::after {
            content: "";
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: #ffd200;
            transition: width 0.3s;
        }
        friend-link a:hover::after {
            width: 100%;
        }
        .site-footer {
            background: #0f0c29;
            color: #999;
            padding: 24px 0 30px;
            font-size: 0.9rem;
            border-top: 1px solid #2a2a4a;
        }
        .site-footer .container {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
        }
        .site-footer .copyright {
            color: #777;
        }
        .site-footer .copyright strong {
            color: #bbb;
        }
        @media (max-width: 1024px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
        }
        @media (max-width: 768px) {
            .header-inner {
                padding: 0 16px;
            }
            .nav-toggle {
                display: block;
            }
            .main-nav {
                display: none;
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                padding-top: 16px;
                gap: 4px;
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a {
                padding: 12px 18px;
                border-radius: 10px;
                background: rgba(255, 255, 255, 0.05);
            }
            .main-article {
                padding: 24px 18px;
            }
            .main-article h1 {
                font-size: 1.8rem;
            }
            .main-article h2 {
                font-size: 1.5rem;
                margin-top: 32px;
            }
            .main-article h3 {
                font-size: 1.25rem;
            }
            .feedback-section {
                grid-template-columns: 1fr;
            }
            .sidebar {
                grid-template-columns: 1fr;
            }
            .site-footer .container {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .main-article {
                padding: 18px 14px;
            }
            .main-article h1 {
                font-size: 1.5rem;
            }
            .my-logo {
                font-size: 1.4rem;
            }
            .breadcrumb-wrap {
                font-size: 0.8rem;
            }
            .search-form {
                flex-direction: column;
            }
            .search-form button {
                padding: 12px;
            }
        }
        .anchor-offset {
            scroll-margin-top: 90px;
        }
        @media print {
            .site-header {
                position: static;
                background: #fff;
                color: #000;
            }
            .my-logo {
                -webkit-text-fill-color: #0f0c29;
                color: #0f0c29;
            }
            .main-nav,
            .nav-toggle,
            .search-form,
            .feedback-section {
                display: none !important;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                display: none;
            }
            .breadcrumb-wrap {
                display: none;
            }
            friend-link {
                background: #f5f5f5;
                color: #333;
            }
            friend-link a {
                color: #333;
            }
            .site-footer {
                background: #f5f5f5;
                color: #333;
            }
        }