* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', 'Microsoft JhengHei', sans-serif;
        }
        
        :root {
            --black: #000000;
            --black-dark: #050505;
            --black-light: #1a1a1a;
            --gold-primary: #d4af37;
            --gold-secondary: #ffd700;
            --gold-light: #f8e473;
            --gold-dark: #b8860b;
            --text-light: #f5f5f5;
            --text-gray: #b0b0b0;
            --success: #28a745;
            --warning: #ffc107;
            --danger: #dc3545;
        }
        
        body {
            background-color: var(--black);
            color: var(--text-light);
            line-height: 1.6;
            overflow-x: hidden;
            min-height: 100vh;
            background-image: 
                url('static/bg.jpg'),
                radial-gradient(circle at 10% 20%, rgba(212, 175, 55, 0.03) 0%, transparent 20%),
                radial-gradient(circle at 90% 80%, rgba(255, 215, 0, 0.03) 0%, transparent 20%);
            background-blend-mode: overlay;
            background-attachment: fixed;
            background-size: cover;
            background-position: center;
        }
        
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.85);
            z-index: -1;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            position: relative;
            z-index: 1;
        }
        
        /* 头部样式 */
        header {
            padding: 20px 0;
            position: relative;
            z-index: 100;
            border-bottom: 1px solid rgba(212, 175, 55, 0.1);
        }
        
        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            font-size: 22px;
            color: var(--text-light);
        }
        
        .logo i {
            font-size: 26px;
            color: var(--gold-primary);
        }
        
        .logo-text {
            background: linear-gradient(90deg, var(--gold-primary), var(--gold-light));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-weight: 800;
            text-shadow: 0 0 10px rgba(212, 175, 55, 0.3);
        }
        
        .tagline {
            font-size: 13px;
            color: var(--text-gray);
            margin-top: 3px;
            letter-spacing: 0.5px;
        }
        
        .header-cta {
            display: none;
        }
        
        @media (min-width: 768px) {
            .header-cta {
                display: block;
            }
        }
        
        /* 主要内容区 - 调整间距 */
        .hero {
            padding: 30px 0 50px;
            position: relative;
        }
        
        .hero-content {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        
        .badge {
            background: linear-gradient(90deg, var(--black-light), rgba(212, 175, 55, 0.2));
            color: var(--gold-light);
            padding: 10px 25px;
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 20px;
            letter-spacing: 1px;
            border: 1px solid rgba(212, 175, 55, 0.3);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
            position: relative;
            overflow: hidden;
        }
        
        .badge::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.1), transparent);
            transform: translateX(-100%);
        }
        
        .badge:hover::before {
            animation: shine 1.5s ease-in-out;
        }
        
        h1 {
            font-size: 1.8rem;
            margin-bottom: 15px;
            line-height: 1.2;
            color: var(--text-light);
            max-width: 900px;
        }
        
        .gold-text {
            background: linear-gradient(90deg, var(--gold-primary), var(--gold-light));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            font-weight: 800;
            text-shadow: 0 0 15px rgba(212, 175, 55, 0.3);
        }
        
        .subtitle {
            font-size: 1.1rem;
            color: var(--text-gray);
            margin-bottom: 30px;
            max-width: 700px;
        }
        
        /* 书籍展示 - 调整间距和居中 */
        .book-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 30px;
            margin: 35px 0;
        }
        
        .book-display {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 30px;
            width: 100%;
        }
        
        @media (min-width: 992px) {
            .book-display {
                flex-direction: row;
                justify-content: center;
                align-items: center;
                gap: 40px;
            }
        }
        
        .book-cover {
            position: relative;
            width: 100%;
            max-width: 360px;
            height: 400px;
            background: linear-gradient(145deg, var(--black-light), #111);
            border-radius: 16px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 30px;
            border: 2px solid rgba(212, 175, 55, 0.2);
            overflow: hidden;
            z-index: 2;
        }
        
        .book-cover::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 6px;
            background: linear-gradient(90deg, var(--gold-primary), var(--gold-light));
            box-shadow: 0 0 15px rgba(212, 175, 55, 0.5);
        }
        
        .book-cover::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent 40%, rgba(212, 175, 55, 0.03) 50%, transparent 60%);
            z-index: -1;
        }
        
        .book-image {
            width: 200px;
            height: 270px;
            background: linear-gradient(145deg, #1a1a1a, #111);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            border: 2px solid rgba(212, 175, 55, 0.3);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
            overflow: hidden;
            position: relative;
        }
        
        .book-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .book-image-placeholder {
            width: 100%;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(45deg, #111, #1a1a1a);
        }
        
        .book-image-placeholder i {
            font-size: 70px;
            color: rgba(212, 175, 55, 0.5);
        }
        
        .book-title {
            font-size: 1.5rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 12px;
            color: var(--gold-primary);
            text-shadow: 0 0 10px rgba(212, 175, 55, 0.3);
        }
        
        .book-author {
            font-size: 0.95rem;
            color: var(--text-gray);
            margin-bottom: 25px;
        }
        
        .book-details {
            display: flex;
            flex-direction: column;
            gap: 10px;
            width: 100%;
            margin-top: 15px;
        }
        
        .book-detail {
            display: flex;
            align-items: center;
            font-size: 0.9rem;
            color: var(--text-gray);
        }
        
        .book-detail i {
            color: var(--gold-primary);
            margin-right: 10px;
            font-size: 13px;
            min-width: 18px;
        }
        
        /* 申请区域 - 调整间距 */
        .apply-section {
            flex: 1;
            max-width: 480px;
            background: linear-gradient(145deg, var(--black-light), #111);
            border-radius: 16px;
            padding: 35px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.7);
            border: 2px solid rgba(212, 175, 55, 0.2);
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        
        .apply-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent 40%, rgba(212, 175, 55, 0.03) 50%, transparent 60%);
            z-index: 1;
        }
        
        .apply-content {
            position: relative;
            z-index: 2;
        }
        
        .apply-title {
            font-size: 1.7rem;
            margin-bottom: 18px;
            color: var(--text-light);
            text-align: center;
        }
        
        .gold-underline {
            display: inline-block;
            position: relative;
        }
        
        .gold-underline::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--gold-primary), var(--gold-light));
            box-shadow: 0 0 8px rgba(212, 175, 55, 0.5);
        }
        
        .apply-description {
            color: var(--text-gray);
            margin-bottom: 25px;
            line-height: 1.6;
            text-align: center;
            font-size: 1rem;
        }
        
        .apply-link {
            display: inline-block;
            width: 100%;
            padding: 18px;
            background: linear-gradient(90deg, var(--gold-dark), var(--gold-primary));
            color: var(--black);
            text-decoration: none;
            border-radius: 12px;
            font-size: 17px;
            font-weight: 800;
            text-align: center;
            transition: all 0.3s;
            margin-bottom: 18px;
            letter-spacing: 1px;
            border: none;
            cursor: pointer;
            box-shadow: 0 10px 25px rgba(212, 175, 55, 0.3);
            position: relative;
            overflow: hidden;
            z-index: 1;
        }
        
        .apply-link::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, var(--gold-primary), var(--gold-light));
            opacity: 0;
            transition: opacity 0.3s;
            z-index: -1;
        }
        
        .apply-link:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 30px rgba(212, 175, 55, 0.5);
            color: var(--black);
        }
        
        .apply-link:hover::before {
            opacity: 1;
        }
        
        .apply-note {
            font-size: 13px;
            color: var(--text-gray);
            text-align: center;
            line-height: 1.5;
            margin-top: 15px;
        }
        
        .apply-note i {
            color: var(--gold-primary);
            margin-right: 5px;
        }
        
        /* 特性部分 - 4个特性，调整间距 */
        .features {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 25px;
            margin-top: 60px;
        }
        
        .feature {
            background: linear-gradient(145deg, var(--black-light), #111);
            border-radius: 14px;
            padding: 30px 25px;
            text-align: center;
            border: 1px solid rgba(212, 175, 55, 0.2);
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }
        
        .feature::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--gold-primary), var(--gold-light));
            box-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
        }
        
        .feature::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent 40%, rgba(212, 175, 55, 0.03) 50%, transparent 60%);
            z-index: -1;
        }
        
        .feature:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.8);
            border-color: rgba(212, 175, 55, 0.4);
        }
        
        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(145deg, #1a1a1a, #111);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 28px;
            color: var(--gold-primary);
            border: 2px solid rgba(212, 175, 55, 0.3);
            box-shadow: 0 0 12px rgba(212, 175, 55, 0.2);
        }
        
        .feature-title {
            font-size: 1.3rem;
            margin-bottom: 12px;
            color: var(--text-light);
        }
        
        .feature-description {
            color: var(--text-gray);
            font-size: 0.9rem;
            line-height: 1.6;
        }
        
        /* 页脚 - 调整间距 */
        footer {
            padding: 10px 0 25px;
            margin-top: 10px;
            border-top: 1px solid rgba(212, 175, 55, 0.1);
            color: var(--text-gray);
            font-size: 14px;
        }
        
        .footer-content {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 25px;
            margin: 25px 0;
            flex-wrap: wrap;
        }
        
        .footer-link {
            color: var(--text-gray);
            text-decoration: none;
            transition: all 0.3s;
            font-size: 15px;
            cursor: pointer;
            padding: 8px 15px;
            border-radius: 6px;
            border: 1px solid transparent;
        }
        
        .footer-link:hover {
            color: var(--gold-primary);
            background-color: rgba(212, 175, 55, 0.05);
            border-color: rgba(212, 175, 55, 0.1);
        }
        
        .footer-link i {
            margin-right: 8px;
            color: var(--gold-primary);
        }
        
        .copyright {
            text-align: center;
            margin-top: 15px;
            color: var(--text-gray);
            font-size: 13px;
            opacity: 0.8;
        }
        
        /* 模态框样式 */
        .modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.9);
            z-index: 1000;
            justify-content: center;
            align-items: center;
            padding: 15px;
        }
        
        .modal-content {
            background: linear-gradient(145deg, var(--black-light), #111);
            border-radius: 16px;
            padding: 35px;
            max-width: 700px;
            width: 100%;
            max-height: 80vh;
            overflow-y: auto;
            border: 2px solid rgba(212, 175, 55, 0.3);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
            position: relative;
        }
        
        .modal-content::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, transparent 40%, rgba(212, 175, 55, 0.03) 50%, transparent 60%);
            z-index: -1;
        }
        
        .modal-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 25px;
            padding-bottom: 18px;
            border-bottom: 1px solid rgba(212, 175, 55, 0.2);
        }
        
        .modal-title {
            font-size: 1.7rem;
            color: var(--gold-primary);
            text-shadow: 0 0 10px rgba(212, 175, 55, 0.3);
        }
        
        .close-modal {
            background: none;
            border: none;
            color: var(--text-gray);
            font-size: 26px;
            cursor: pointer;
            transition: color 0.3s;
            line-height: 1;
        }
        
        .close-modal:hover {
            color: var(--gold-primary);
        }
        
        .modal-body {
            color: var(--text-gray);
            line-height: 1.6;
        }
        
        .modal-body h3 {
            color: var(--text-light);
            margin: 20px 0 12px;
            font-size: 1.25rem;
        }
        
        .modal-body h3 i {
            color: var(--gold-primary);
            margin-right: 10px;
        }
        
        .modal-body p {
            margin-bottom: 12px;
        }
        
        .modal-body ul {
            margin-left: 18px;
            margin-bottom: 18px;
        }
        
        .modal-body li {
            margin-bottom: 8px;
        }
        
        /* 响应式设计 - 电脑版居中优化 */
        @media (min-width: 768px) {
            .hero-content {
                text-align: center;
                align-items: center;
            }
            
            h1 {
                font-size: 2.2rem;
            }
            
            .header-cta {
                display: block;
                padding: 10px 22px;
                background: linear-gradient(90deg, var(--gold-dark), var(--gold-primary));
                color: var(--black);
                text-decoration: none;
                border-radius: 30px;
                font-weight: 700;
                font-size: 15px;
                transition: all 0.3s;
                box-shadow: 0 5px 15px rgba(212, 175, 55, 0.3);
            }
            
            .header-cta:hover {
                transform: translateY(-3px);
                box-shadow: 0 10px 20px rgba(212, 175, 55, 0.4);
            }
            
            /* 电脑版书籍和申请区域居中 */
            .book-display {
                justify-content: center;
                align-items: center;
            }
            
            /* 特性部分在电脑版更紧凑 */
            .features {
                grid-template-columns: repeat(2, 1fr);
                gap: 30px;
            }
        }
        
        @media (min-width: 1200px) {
            .features {
                grid-template-columns: repeat(4, 1fr);
                gap: 25px;
            }
        }
        
        @media (max-width: 480px) {
            h1 {
                font-size: 1.8rem;
            }
            
            .apply-section {
                padding: 25px 20px;
            }
            
            .book-cover {
               
                max-width: 320px;
                padding: 25px 20px;
            }
            
            .book-image {
                width: 180px;
                height: 240px;
                margin-bottom: 20px;
            }
            
            .features {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        
        /* 动画效果 */
        @keyframes shine {
            to {
                transform: translateX(100%);
            }
        }
        
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-12px); }
        }
        
        .floating {
            animation: float 5s ease-in-out infinite;
        }
        
        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.4); }
            70% { box-shadow: 0 0 0 12px rgba(212, 175, 55, 0); }
            100% { box-shadow: 0 0 0 0 rgba(212, 175, 55, 0); }
        }
        
        .pulse {
            animation: pulse 3s infinite;
        }
        
        @keyframes glow {
            0%, 100% { box-shadow: 0 0 10px rgba(212, 175, 55, 0.3); }
            50% { box-shadow: 0 0 20px rgba(212, 175, 55, 0.6); }
        }
        
        .glow {
            animation: glow 2s ease-in-out infinite;
        }
        
        /* 滚动动画 */
        .fade-in {
            opacity: 0;
            transform: translateY(25px);
            transition: opacity 0.5s ease, transform 0.5s ease;
        }
        
        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }
        
        /* 电脑版主要内容居中容器 */
        .center-container {
            width: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
        }