*,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary: #2a1a5e;
            --primary-light: #4a2d8a;
            --secondary: #f0c040;
            --secondary-light: #fadd7a;
            --accent: #e85d5d;
            --bg: #f9f7fc;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-light: #555577;
            --border: #e0dcec;
            --shadow: 0 8px 30px rgba(42, 26, 94, 0.08);
            --radius: 16px;
            --radius-sm: 10px;
            --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
            --header-height: 70px;
        }
        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }
        body {
            font-family: var(--font);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color 0.2s;
        }
        a:hover {
            color: var(--accent);
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
            display: flex;
            align-items: center;
            transition: box-shadow 0.3s;
        }
        header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            gap: 20px;
        }
        .my-logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .my-logo i {
            -webkit-text-fill-color: var(--secondary);
            font-size: 1.6rem;
            background: none;
        }
        .my-logo:hover {
            opacity: 0.85;
            text-decoration: none;
        }
        .my-logo span {
            font-weight: 300;
            -webkit-text-fill-color: var(--text-light);
            font-size: 0.9rem;
            display: none;
        }
        @media(min-width:600px) {
            .my-logo span {
                display: inline;
            }
        }
        nav.main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        nav.main-nav a {
            padding: 8px 14px;
            border-radius: 8px;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text);
            transition: background 0.2s, color 0.2s;
            white-space: nowrap;
        }
        nav.main-nav a:hover {
            background: var(--primary);
            color: #fff;
            text-decoration: none;
        }
        nav.main-nav a i {
            margin-right: 6px;
            font-size: 0.85rem;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.6rem;
            color: var(--primary);
            cursor: pointer;
            padding: 4px 8px;
            border-radius: 8px;
            transition: background 0.2s;
        }
        .nav-toggle:hover {
            background: var(--border);
        }
        @media(max-width:768px) {
            .nav-toggle {
                display: block;
            }
            nav.main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                transition: transform 0.35s ease, opacity 0.3s;
                pointer-events: none;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.06);
            }
            nav.main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            nav.main-nav a {
                width: 100%;
                padding: 12px 16px;
                border-radius: 8px;
                font-size: 1rem;
            }
            nav.main-nav a i {
                width: 24px;
            }
        }
        .breadcrumb {
            padding: 16px 0 8px;
            font-size: 0.85rem;
            color: var(--text-light);
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
            align-items: center;
        }
        .breadcrumb a {
            color: var(--primary-light);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb span.sep {
            color: var(--border);
            font-weight: 300;
        }
        .hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 60%, #6a4bae 100%);
            color: #fff;
            padding: 48px 0 40px;
            border-radius: 0 0 var(--radius) var(--radius);
            margin-bottom: 40px;
            position: relative;
            overflow: hidden;
        }
        .hero::after {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(240, 192, 64, 0.15), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 1;
        }
        .hero h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .hero h1 i {
            color: var(--secondary);
            margin-right: 12px;
        }
        .hero p {
            font-size: 1.15rem;
            max-width: 720px;
            opacity: 0.9;
            margin-bottom: 6px;
        }
        .hero .meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            margin-top: 16px;
            font-size: 0.9rem;
            opacity: 0.8;
        }
        .hero .meta i {
            margin-right: 6px;
            color: var(--secondary);
        }
        @media(max-width:600px) {
            .hero h1 {
                font-size: 2rem;
            }
            .hero p {
                font-size: 1rem;
            }
        }
        .search-section {
            margin-bottom: 40px;
        }
        .search-form {
            display: flex;
            max-width: 600px;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 2px solid var(--border);
            transition: border-color 0.3s;
            background: #fff;
        }
        .search-form:focus-within {
            border-color: var(--primary-light);
        }
        .search-form input {
            flex: 1;
            padding: 14px 22px;
            border: none;
            font-size: 1rem;
            outline: none;
            background: transparent;
            color: var(--text);
        }
        .search-form input::placeholder {
            color: var(--text-light);
        }
        .search-form button {
            padding: 14px 28px;
            background: var(--primary);
            color: #fff;
            border: none;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .search-form button:hover {
            background: var(--primary-light);
        }
        .content-wrapper {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            margin-bottom: 60px;
        }
        @media(max-width:960px) {
            .content-wrapper {
                grid-template-columns: 1fr;
            }
        }
        .main-content h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary);
            margin-top: 48px;
            margin-bottom: 16px;
            padding-bottom: 8px;
            border-bottom: 3px solid var(--secondary);
            display: inline-block;
        }
        .main-content h2:first-of-type {
            margin-top: 0;
        }
        .main-content h3 {
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--primary-light);
            margin-top: 32px;
            margin-bottom: 10px;
        }
        .main-content h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text);
            margin-top: 20px;
            margin-bottom: 6px;
        }
        .main-content p {
            margin-bottom: 16px;
            color: var(--text);
        }
        .main-content .lead {
            font-size: 1.15rem;
            color: var(--text-light);
            border-left: 4px solid var(--secondary);
            padding-left: 20px;
            margin-bottom: 24px;
        }
        .main-content ul,
        .main-content ol {
            margin: 0 0 20px 24px;
        }
        .main-content li {
            margin-bottom: 8px;
        }
        .main-content blockquote {
            border-left: 4px solid var(--primary-light);
            padding: 12px 20px;
            margin: 20px 0;
            background: rgba(42, 26, 94, 0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-light);
        }
        .main-content .highlight-box {
            background: linear-gradient(135deg, rgba(240, 192, 64, 0.08), rgba(42, 26, 94, 0.04));
            padding: 24px 28px;
            border-radius: var(--radius-sm);
            border-left: 4px solid var(--secondary);
            margin: 24px 0;
        }
        .main-content .highlight-box h4 {
            margin-top: 0;
            color: var(--primary);
        }
        .feature-image {
            margin: 32px 0;
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .feature-image img {
            width: 100%;
            max-height: 480px;
            object-fit: cover;
        }
        .feature-image figcaption {
            padding: 12px 20px;
            background: var(--bg-card);
            font-size: 0.85rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            font-style: italic;
        }
        .sidebar {
            position: sticky;
            top: calc(var(--header-height) + 24px);
            align-self: start;
        }
        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow);
            margin-bottom: 24px;
            border: 1px solid var(--border);
        }
        .sidebar-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card h3 i {
            color: var(--secondary);
        }
        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .sidebar-card ul li {
            padding: 6px 0;
            border-bottom: 1px solid var(--border);
            font-size: 0.9rem;
        }
        .sidebar-card ul li:last-child {
            border-bottom: none;
        }
        .sidebar-card ul li a {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .sidebar-card ul li a::before {
            content: '🎵';
            font-size: 0.8rem;
        }
        .sidebar-card ul li a:hover::before {
            content: '🎶';
        }
        .feedback-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin: 40px 0;
        }
        @media(max-width:700px) {
            .feedback-grid {
                grid-template-columns: 1fr;
            }
        }
        .feedback-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
        }
        .feedback-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feedback-card h3 i {
            color: var(--secondary);
        }
        .feedback-card form {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .feedback-card form input,
        .feedback-card form textarea,
        .feedback-card form select {
            padding: 12px 16px;
            border: 2px solid var(--border);
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-family: var(--font);
            outline: none;
            transition: border-color 0.3s;
            background: var(--bg);
        }
        .feedback-card form input:focus,
        .feedback-card form textarea:focus,
        .feedback-card form select:focus {
            border-color: var(--primary-light);
        }
        .feedback-card form textarea {
            min-height: 100px;
            resize: vertical;
        }
        .feedback-card form .stars {
            display: flex;
            gap: 6px;
            font-size: 1.6rem;
            color: var(--border);
            cursor: pointer;
            direction: rtl;
        }
        .feedback-card form .stars i {
            transition: color 0.2s;
        }
        .feedback-card form .stars i:hover,
        .feedback-card form .stars i:hover~i {
            color: var(--secondary);
        }
        .feedback-card form button {
            padding: 12px 24px;
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
            display: flex;
            align-items: center;
            gap: 8px;
            justify-content: center;
        }
        .feedback-card form button:hover {
            background: var(--primary-light);
            transform: scale(1.01);
        }
        footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.85);
            padding: 48px 0 32px;
            margin-top: 60px;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        footer .container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 32px;
        }
        @media(max-width:768px) {
            footer .container {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        footer h4 {
            color: var(--secondary);
            font-size: 1.1rem;
            margin-bottom: 12px;
            font-weight: 600;
        }
        footer p,
        footer a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9rem;
        }
        footer a:hover {
            color: var(--secondary-light);
            text-decoration: underline;
        }
        footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        footer .footer-links li {
            padding: 4px 0;
        }
        footer .copyright {
            grid-column: 1 / -1;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 20px;
            margin-top: 16px;
            text-align: center;
            font-size: 0.85rem;
            opacity: 0.7;
        }
        friend-link {
            display: block;
            margin-top: 8px;
            font-size: 0.9rem;
        }
        friend-link a {
            color: var(--secondary-light);
            margin: 0 4px;
        }
        friend-link a:hover {
            color: #fff;
        }
        @media(max-width:480px) {
            .hero h1 {
                font-size: 1.6rem;
            }
            .hero .meta {
                flex-direction: column;
                gap: 6px;
            }
            .search-form {
                flex-direction: column;
                border-radius: var(--radius-sm);
            }
            .search-form button {
                justify-content: center;
                padding: 12px;
            }
            .main-content h2 {
                font-size: 1.5rem;
            }
            .main-content h3 {
                font-size: 1.2rem;
            }
            .sidebar-card {
                padding: 16px;
            }
        }
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border);
            border-radius: 4px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-light);
        }
        .anchor-offset {
            scroll-margin-top: calc(var(--header-height) + 16px);
        }