*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        :root {
            --primary: #1a2a3a;
            --primary-light: #2c3e50;
            --accent: #e67e22;
            --accent-hover: #d35400;
            --bg: #f5f2ed;
            --card-bg: #ffffff;
            --text: #1e1e1e;
            --text-light: #555;
            --border: #ddd;
            --radius: 12px;
            --shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
            --font: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
            --max-width: 1120px;
            --header-bg: #0f1a24;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent-hover);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            width: 100%;
        }
        .site-header {
            background: var(--header-bg);
            color: #fff;
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .my-logo {
            font-size: 1.6rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            color: #fff;
            background: linear-gradient(135deg, var(--accent), #f39c12);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-decoration: none !important;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .my-logo i {
            font-size: 1.8rem;
            -webkit-text-fill-color: var(--accent);
            color: var(--accent);
        }
        .my-logo:hover {
            opacity: 0.9;
            text-decoration: none !important;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: 2px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.4rem;
            padding: 6px 12px;
            border-radius: 8px;
            cursor: pointer;
            transition: 0.2s;
        }
        .nav-toggle:hover {
            border-color: var(--accent);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .nav-menu a {
            color: #ddd;
            padding: 6px 14px;
            border-radius: 6px;
            font-size: 0.92rem;
            font-weight: 500;
            transition: 0.2s;
            white-space: nowrap;
        }
        .nav-menu a:hover,
        .nav-menu a.active {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            text-decoration: none;
        }
        .nav-menu a.active {
            color: var(--accent);
        }
        .breadcrumb {
            background: transparent;
            padding: 10px 0 4px;
            font-size: 0.85rem;
            color: #aaa;
            display: flex;
            flex-wrap: wrap;
            gap: 4px 8px;
        }
        .breadcrumb a {
            color: var(--accent);
        }
        .breadcrumb span {
            color: #888;
        }
        .hero {
            background: linear-gradient(135deg, #0f1a24 0%, #1a2a3a 100%);
            color: #fff;
            padding: 48px 0 40px;
            margin-bottom: 36px;
            border-bottom: 4px solid var(--accent);
        }
        .hero h1 {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 12px;
        }
        .hero h1 i {
            color: var(--accent);
            margin-right: 10px;
        }
        .hero p {
            font-size: 1.1rem;
            color: #ccc;
            max-width: 720px;
        }
        .hero .meta {
            margin-top: 16px;
            font-size: 0.9rem;
            color: #999;
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
        }
        .hero .meta span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .page-wrap {
            flex: 1;
            padding-bottom: 48px;
        }
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            align-items: start;
        }
        .main-content {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 36px 32px;
            box-shadow: var(--shadow);
        }
        .sidebar {
            position: sticky;
            top: 100px;
        }
        .sidebar-card {
            background: var(--card-bg);
            border-radius: var(--radius);
            padding: 24px 20px;
            box-shadow: var(--shadow);
            margin-bottom: 20px;
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            margin-bottom: 12px;
            border-left: 4px solid var(--accent);
            padding-left: 12px;
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
        }
        .sidebar-card ul li {
            padding: 6px 0;
            border-bottom: 1px solid #f0f0f0;
            font-size: 0.9rem;
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-content h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin: 40px 0 16px;
            color: var(--primary);
            border-bottom: 2px solid var(--accent);
            padding-bottom: 6px;
        }
        .main-content h2:first-of-type {
            margin-top: 0;
        }
        .main-content h3 {
            font-size: 1.3rem;
            font-weight: 600;
            margin: 28px 0 12px;
            color: var(--primary-light);
        }
        .main-content h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin: 20px 0 8px;
            color: var(--text);
        }
        .main-content p {
            margin-bottom: 16px;
            font-size: 1rem;
            color: #2a2a2a;
        }
        .main-content p b,
        .main-content p strong {
            color: var(--primary);
        }
        .main-content ul,
        .main-content ol {
            margin: 12px 0 20px 24px;
        }
        .main-content li {
            margin-bottom: 6px;
        }
        .main-content blockquote {
            border-left: 4px solid var(--accent);
            background: #faf6f0;
            padding: 16px 20px;
            margin: 20px 0;
            border-radius: 0 8px 8px 0;
            font-style: italic;
            color: #444;
        }
        .main-content .img-wrap {
            margin: 24px 0;
            background: #f9f7f4;
            border-radius: var(--radius);
            padding: 12px;
            text-align: center;
        }
        .main-content .img-wrap img {
            border-radius: 8px;
        }
        .main-content .img-wrap figcaption {
            font-size: 0.85rem;
            color: #777;
            margin-top: 8px;
        }
        .highlight-box {
            background: #fef9f0;
            border: 1px solid #f0dcc0;
            border-radius: var(--radius);
            padding: 20px 24px;
            margin: 20px 0;
        }
        .highlight-box i {
            color: var(--accent);
            margin-right: 8px;
        }
        .interactive-module {
            background: #f9f7f4;
            border-radius: var(--radius);
            padding: 24px 28px;
            margin: 36px 0;
            border: 1px solid #e8e0d6;
        }
        .interactive-module h3 {
            margin-top: 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .interactive-module form {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 12px;
        }
        .interactive-module input,
        .interactive-module textarea,
        .interactive-module select {
            padding: 10px 16px;
            border: 1px solid var(--border);
            border-radius: 8px;
            font-size: 0.95rem;
            flex: 1 1 200px;
            background: #fff;
            font-family: inherit;
        }
        .interactive-module textarea {
            flex-basis: 100%;
            min-height: 80px;
            resize: vertical;
        }
        .interactive-module button {
            padding: 10px 28px;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .interactive-module button:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
        }
        .interactive-module .note {
            font-size: 0.85rem;
            color: #888;
            margin-top: 6px;
            width: 100%;
        }
        .rating-stars {
            display: flex;
            gap: 4px;
            font-size: 1.6rem;
            color: #ccc;
            cursor: pointer;
        }
        .rating-stars i.active {
            color: #f39c12;
        }
        .rating-stars i:hover,
        .rating-stars i.hover {
            color: #f1c40f;
        }
        .sidebar-card .link-list li a {
            font-size: 0.88rem;
            padding: 4px 0;
        }
        .site-footer {
            background: var(--header-bg);
            color: #ccc;
            padding: 40px 0 24px;
            margin-top: auto;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        .footer-inner h4 {
            color: #fff;
            font-size: 1.05rem;
            margin-bottom: 12px;
        }
        .footer-inner p,
        .footer-inner li {
            font-size: 0.9rem;
        }
        .footer-inner ul {
            list-style: none;
            padding: 0;
        }
        .footer-inner ul li {
            padding: 4px 0;
        }
        .footer-inner ul li a {
            color: #aaa;
        }
        .footer-inner ul li a:hover {
            color: var(--accent);
        }
        friend-link {
            display: block;
            margin-top: 16px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.9rem;
        }
        friend-link a {
            color: var(--accent);
            margin: 0 6px;
        }
        .copyright {
            text-align: center;
            padding-top: 24px;
            margin-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.85rem;
            color: #888;
        }
        .copyright strong {
            color: #bbb;
        }
        @media (max-width: 992px) {
            .content-grid {
                grid-template-columns: 1fr;
            }
            .sidebar {
                position: static;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .hero h1 {
                font-size: 2rem;
            }
        }
        @media (max-width: 768px) {
            .nav-toggle {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                padding-top: 12px;
                gap: 4px;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu a {
                width: 100%;
                padding: 10px 14px;
                border-radius: 6px;
            }
            .header-inner {
                align-items: center;
            }
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero p {
                font-size: 0.95rem;
            }
            .main-content {
                padding: 20px 16px;
            }
            .main-content h2 {
                font-size: 1.4rem;
            }
            .main-content h3 {
                font-size: 1.1rem;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .interactive-module {
                padding: 16px;
            }
            .interactive-module form {
                flex-direction: column;
            }
            .interactive-module input,
            .interactive-module textarea,
            .interactive-module select {
                flex-basis: auto;
                width: 100%;
            }
            .rating-stars {
                font-size: 1.4rem;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .hero {
                padding: 28px 0 24px;
            }
            .hero h1 {
                font-size: 1.3rem;
            }
            .my-logo {
                font-size: 1.2rem;
            }
            .my-logo i {
                font-size: 1.3rem;
            }
            .main-content {
                padding: 14px 10px;
            }
            .main-content h2 {
                font-size: 1.2rem;
            }
            .main-content p {
                font-size: 0.92rem;
            }
        }