body {
            font-family: 'Space Grotesk', sans-serif;
            background: linear-gradient(135deg, #0B1C3D 0%, #1E3D7B 100%);
            min-height: 100vh;
            -webkit-overflow-scrolling: touch;
        }

        .glass-card {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .btn-primary {
            background: linear-gradient(135deg, #1E3D7B, #4A90E2);
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(30, 61, 123, 0.3);
        }

        .date-input::-webkit-calendar-picker-indicator {
            filter: invert(1);
        }

        /* 移动端优化 */
        .mobile-container {
            padding: 1rem;
            max-width: 100vw;
            overflow-x: hidden;
        }

        .mobile-form {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .mobile-input {
            width: 100%;
            padding: 0.875rem;
            font-size: 16px;
            /* 防止iOS缩放 */
            border-radius: 8px;
        }

        .mobile-textarea {
            min-height: 100px;
            resize: vertical;
        }

        .mobile-button {
            padding: 1rem;
            font-size: 16px;
            font-weight: 600;
            border-radius: 8px;
            width: 100%;
        }

        /* 邀请奖励样式 */
        .reward-card {
            background: linear-gradient(135deg, #10B981, #059669);
            border-radius: 12px;
            padding: 1rem;
            margin-bottom: 1rem;
        }

        .reward-amount {
            font-size: 1.5rem;
            font-weight: bold;
            color: white;
        }

        /* 自定义弹窗样式 */
        .custom-modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.6);
            z-index: 10000;
            display: flex;
            justify-content: center;
            align-items: center;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .custom-modal.show {
            opacity: 1;
            visibility: visible;
        }

        .modal-content {
            background: white;
            border-radius: 16px;
            padding: 0;
            max-width: 90vw;
            width: 400px;
            max-height: 80vh;
            overflow: hidden;
            transform: scale(0.8);
            transition: transform 0.3s ease;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
        }

        .custom-modal.show .modal-content {
            transform: scale(1);
        }

        .modal-header {
            padding: 24px 24px 16px;
            text-align: center;
            border-bottom: 1px solid #f0f0f0;
        }

        .modal-header.success {
            background: linear-gradient(135deg, #52c41a, #73d13d);
            color: white;
            border-bottom: none;
        }

        .modal-header.error {
            background: linear-gradient(135deg, #ff4d4f, #ff7875);
            color: white;
            border-bottom: none;
        }

        .modal-header.warning {
            background: linear-gradient(135deg, #faad14, #ffc53d);
            color: white;
            border-bottom: none;
        }

        .modal-icon {
            font-size: 48px;
            margin-bottom: 12px;
            display: block;
        }

        .modal-title {
            font-size: 20px;
            font-weight: 600;
            margin: 0;
        }

        .modal-body {
            padding: 24px;
            text-align: center;
            line-height: 1.6;
        }

        .modal-message {
            font-size: 16px;
            color: #333;
            margin-bottom: 16px;
        }

        .modal-details {
            background: #f8f9fa;
            border-radius: 8px;
            padding: 16px;
            margin: 16px 0;
            text-align: left;
            font-size: 14px;
            color: #666;
            border-left: 4px solid #1890ff;
        }

        .modal-details.success {
            border-left-color: #52c41a;
            background: #f6ffed;
        }

        .modal-details.error {
            border-left-color: #ff4d4f;
            background: #fff2f0;
        }

        .application-id {
            font-family: 'Courier New', monospace;
            font-weight: bold;
            color: #1890ff;
            background: #e6f7ff;
            padding: 4px 8px;
            border-radius: 4px;
            display: inline-block;
            margin: 0 4px;
        }

        .modal-footer {
            padding: 16px 24px 24px;
            text-align: center;
            border-top: 1px solid #f0f0f0;
        }

        .modal-btn {
            background: linear-gradient(135deg, #1890ff, #40a9ff);
            color: white;
            border: none;
            padding: 12px 32px;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            margin: 0 8px;
        }

        .modal-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(24, 144, 255, 0.3);
        }

        .modal-btn.secondary {
            background: #f5f5f5;
            color: #666;
        }

        .modal-btn.secondary:hover {
            background: #e8e8e8;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        }

        .error-list {
            text-align: left;
            margin: 12px 0;
        }

        .error-item {
            background: #fff2f0;
            border: 1px solid #ffccc7;
            border-radius: 6px;
            padding: 8px 12px;
            margin: 8px 0;
            color: #a8071a;
            font-size: 14px;
        }

        .error-item::before {
            content: "⚠️ ";
            margin-right: 6px;
        }

        /* 加载动画 */
        .loading-spinner {
            display: inline-block;
            width: 16px;
            height: 16px;
            border: 2px solid #ffffff;
            border-radius: 50%;
            border-top-color: transparent;
            animation: spin 1s ease-in-out infinite;
            margin-right: 8px;
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        /* Banner样式 */
        .banner-container {
            position: relative;
            width: 100%;
            height: 200px;
            margin-bottom: 1rem;
            border-radius: 12px;
            overflow: hidden;
            background: linear-gradient(135deg, #1E3D7B 0%, #4A90E2 50%, #6BB6FF 100%);
            box-shadow: 0 8px 32px rgba(30, 61, 123, 0.3);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .banner-container:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 40px rgba(30, 61, 123, 0.4);
        }

        .banner-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 12px;
            transition: transform 0.5s ease;
            opacity: 0.8;
        }

        .banner-container:hover .banner-image {
            transform: scale(1.05);
            opacity: 0.9;
        }

        .banner-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(30, 61, 123, 0.4), rgba(74, 144, 226, 0.3), rgba(107, 182, 255, 0.1));
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            padding: 1rem;
        }

        .banner-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: white;
            margin-bottom: 0.5rem;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
            animation: fadeInUp 0.8s ease-out;
            letter-spacing: 0.5px;
        }

        .banner-subtitle {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.95);
            margin-bottom: 1rem;
            text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
            animation: fadeInUp 0.8s ease-out 0.2s both;
            font-weight: 400;
        }

        .banner-features {
            display: flex;
            gap: 0.6rem;
            flex-wrap: wrap;
            justify-content: center;
            animation: fadeInUp 0.8s ease-out 0.4s both;
        }

        .banner-feature {
            background: rgba(255, 255, 255, 0.25);
            backdrop-filter: blur(15px);
            padding: 0.5rem 1rem;
            border-radius: 25px;
            font-size: 0.8rem;
            color: white;
            border: 1px solid rgba(255, 255, 255, 0.4);
            transition: all 0.3s ease;
            font-weight: 500;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .banner-feature:hover {
            background: rgba(255, 255, 255, 0.35);
            transform: translateY(-3px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        }

        /* 添加装饰性元素 */
        .banner-container::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
            animation: rotate 20s linear infinite;
            pointer-events: none;
        }

        @keyframes rotate {
            from {
                transform: rotate(0deg);
            }

            to {
                transform: rotate(360deg);
            }
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 添加闪烁效果 */
        .banner-feature:nth-child(1) {
            animation-delay: 0.6s;
        }

        .banner-feature:nth-child(2) {
            animation-delay: 0.8s;
        }

        .banner-feature:nth-child(3) {
            animation-delay: 1s;
        }

        /* 响应式优化 */
        @media (max-width: 375px) {
            .banner-container {
                height: 160px;
            }

            .banner-title {
                font-size: 1.3rem;
            }

            .banner-subtitle {
                font-size: 0.85rem;
                margin-bottom: 0.8rem;
            }

            .banner-features {
                gap: 0.4rem;
            }

            .banner-feature {
                font-size: 0.75rem;
                padding: 0.4rem 0.8rem;
            }
        }

        @media (max-width: 320px) {
            .banner-container {
                height: 140px;
            }

            .banner-title {
                font-size: 1.2rem;
            }

            .banner-subtitle {
                font-size: 0.8rem;
            }
        }

        /* 标签页样式 */
        .tab-container {
            display: flex;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            padding: 4px;
            margin-bottom: 1rem;
        }

        .tab-button {
            flex: 1;
            padding: 0.75rem;
            text-align: center;
            border-radius: 6px;
            background: transparent;
            color: rgba(255, 255, 255, 0.7);
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .tab-button.active {
            background: rgba(255, 255, 255, 0.2);
            color: white;
        }

        .tab-content {
            display: none;
        }

        .tab-content.active {
            display: block;
        }

        /* Footer样式 */
        .footer-container {
            background: linear-gradient(135deg, #0B1C3D 0%, #1E3D7B 100%);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 3rem;
            padding: 2rem 0 0;
            position: relative;
        }

        .footer-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(74, 144, 226, 0.5), transparent);
        }

        .footer-content {
            max-width: 100%;
            margin: 0 auto;
            padding: 0 1rem;
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        .footer-section {
            text-align: center;
            animation: fadeInUp 0.6s ease-out;
        }

        .footer-main {
            order: -1;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            gap: 0.5rem;
        }

        .footer-logo-img {
            width: auto;
            height: 36px;
            border-radius: 8px;
            filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
        }

        .footer-brand {
            font-size: 1.6rem;
            font-weight: 700;
            color: white;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
            letter-spacing: 0.5px;
        }

        .footer-description {
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 1.5rem;
            max-width: 280px;
            margin-left: auto;
            margin-right: auto;
        }

        .footer-title {
            color: white;
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 1rem;
            text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
            position: relative;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            bottom: -0.5rem;
            left: 50%;
            transform: translateX(-50%);
            width: 30px;
            height: 2px;
            background: linear-gradient(90deg, #4A90E2, #6BB6FF);
            border-radius: 1px;
        }

        .footer-links-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 0.8rem;
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            font-size: 0.9rem;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.5rem;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
        }

        .footer-link:hover {
            color: #4A90E2;
            background: rgba(74, 144, 226, 0.1);
            transform: translateY(-2px);
        }

        .footer-contacts {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .footer-contact {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.85rem;
            padding: 0.5rem;
            border-radius: 6px;
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .footer-contact:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-1px);
        }

        .footer-icon {
            font-size: 1rem;
            min-width: 20px;
        }

        .footer-social {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .footer-social-link {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            text-decoration: none;
            transition: all 0.3s ease;
            backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .footer-social-link:hover {
            background: rgba(74, 144, 226, 0.3);
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
        }

        .footer-social-icon {
            font-size: 1.3rem;
        }

        .footer-bottom {
            background: rgba(0, 0, 0, 0.3);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 2rem;
            padding: 1.5rem 0;
            backdrop-filter: blur(10px);
        }

        .footer-bottom-content {
            max-width: 100%;
            margin: 0 auto;
            padding: 0 1rem;
            text-align: center;
        }

        .footer-copyright {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.8rem;
            margin-bottom: 1rem;
            font-weight: 400;
        }

        .footer-bottom-links {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 0.8rem;
            flex-wrap: wrap;
        }

        .footer-bottom-link {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 0.8rem;
            transition: color 0.3s ease;
            padding: 0.2rem 0.5rem;
            border-radius: 4px;
        }

        .footer-bottom-link:hover {
            color: #4A90E2;
            background: rgba(74, 144, 226, 0.1);
        }

        .footer-divider {
            color: rgba(255, 255, 255, 0.3);
            font-size: 0.8rem;
        }

        /* 响应式设计 */
        @media (min-width: 640px) {
            .footer-content {
                grid-template-columns: 1fr 1fr;
                gap: 2.5rem;
                max-width: 600px;
                margin: 0 auto;
            }

            .footer-main {
                grid-column: 1 / -1;
                order: 0;
            }

            .footer-section {
                text-align: left;
            }

            .footer-logo {
                justify-content: flex-start;
            }

            .footer-title::after {
                left: 0;
                transform: none;
            }

            .footer-contact {
                justify-content: flex-start;
            }

            .footer-social {
                justify-content: flex-start;
            }

            .footer-links-grid {
                grid-template-columns: 1fr 1fr;
            }

            .footer-link {
                justify-content: flex-start;
            }
        }

        @media (min-width: 768px) {
            .footer-content {
                grid-template-columns: 2fr 1fr 1fr;
                max-width: 1000px;
                padding: 0 2rem;
            }

            .footer-main {
                grid-column: 1;
            }

            .footer-bottom-content {
                display: flex;
                justify-content: space-between;
                align-items: center;
                max-width: 1000px;
                padding: 0 2rem;
            }

            .footer-copyright {
                margin-bottom: 0;
            }
        }

        /* 动画效果 */
        .footer-section:nth-child(1) {
            animation-delay: 0.1s;
        }

        .footer-section:nth-child(2) {
            animation-delay: 0.2s;
        }

        .footer-section:nth-child(3) {
            animation-delay: 0.3s;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }