* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
            background: #f5f5f5;
            min-height: 100vh;
            padding: 20px;
        }
        .container {
            max-width: 500px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        @media (min-width: 1000px) {
            .container {
                max-width: 1000px;
                flex-direction: row;
                align-items: stretch;
            }
            .container > .card:first-child {
                flex: 1;
                display: flex;
                flex-direction: column;
            }
            .container > .card:first-child .form-section {
                flex: 1;
                display: flex;
                flex-direction: column;
            }
            .container > .card:first-child .btn-submit {
                margin-top: auto;
            }
            .notice-card {
                width: 380px;
                margin-top: 0 !important;
            }
        }
        .card {
            background: #fff;
            border-radius: 16px;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
            overflow: hidden;
        }
        .logo-section {
            padding: 30px 25px;
            text-align: center;
            border-bottom: 1px solid #f0f0f0;
        }
        .logo-img {
            display: block;
            width: 160px;
            height: auto;
            margin: 0 auto 15px;
        }
        .subtitle {
            display: inline-block;
            padding: 6px 20px;
            background: #f0fff4;
            border-radius: 20px;
            font-size: 13px;
            color: #10b981;
        }
        .form-section {
            padding: 25px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-label {
            display: block;
            font-size: 14px;
            color: #333;
            margin-bottom: 8px;
        }
        .form-label.required::after {
            content: '*';
            color: #e74c3c;
            margin-left: 4px;
        }
        .form-input {
            width: 100%;
            padding: 12px;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            font-size: 14px;
            background: #fff;
            transition: border-color 0.2s;
        }
        .form-input:focus {
            outline: none;
            border-color: #667eea;
        }
        .form-input::placeholder {
            color: #ccc;
        }
        .form-textarea {
            width: 100%;
            padding: 12px;
            border: 1px solid #e0e0e0;
            border-radius: 8px;
            font-size: 14px;
            resize: none;
            height: 80px;
            font-family: inherit;
            background: #fff;
            transition: border-color 0.2s;
        }
        .form-textarea:focus {
            outline: none;
            border-color: #667eea;
        }
        .form-textarea::placeholder {
            color: #ccc;
        }
        /* 新增：提示文字样式 */
        .form-tip {
            font-size: 12px;
            color: #999;
            margin-top: 6px;
        }
        .form-tip a {
            color: #667eea;
            text-decoration: none;
        }
        /* 新增：错误提示样式 */
        .form-error {
            font-size: 12px;
            color: #ef4444;
            margin-top: 6px;
            display: none;
        }

        .btn-submit {
            width: 100%;
            padding: 14px;
            background: #10b981;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            margin-top: 10px;
        }
        .btn-submit:active {
            opacity: 0.9;
        }
        .success-message {
            background: #f0fff4;
            color: #10b981;
            padding: 12px;
            border-radius: 8px;
            margin-bottom: 15px;
            font-size: 13px;
            display: none;
        }
        .error-message {
            background: #fef2f2;
            color: #ef4444;
            padding: 12px;
            border-radius: 8px;
            margin-bottom: 15px;
            font-size: 13px;
            display: none;
        }
        .admin-link {
            text-align: center;
            margin-top: 15px;
            font-size: 12px;
            color: #999;
        }
        .admin-link a {
            color: #667eea;
            text-decoration: none;
        }
        .notice-card {
            margin-top: 20px;
            padding: 0;
        }
        .notice-header {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 18px 20px;
            background: #f8fafc;
            border-bottom: 1px solid #f0f0f0;
        }
        .notice-icon {
            font-size: 18px;
        }
        .notice-title {
            font-size: 16px;
            font-weight: 600;
            color: #333;
        }
        .notice-content {
            padding: 20px;
            font-size: 13px;
            line-height: 1.8;
            color: #555;
        }
        .notice-section {
            margin-bottom: 20px;
        }
        .notice-section:last-child {
            margin-bottom: 0;
        }
        .section-title {
            font-weight: 600;
            color: #333;
            margin-bottom: 10px;
            font-size: 14px;
        }
        .notice-content p {
            margin-bottom: 8px;
        }
        .notice-content p:last-child {
            margin-bottom: 0;
        }
        .notice-content a {
            color: #667eea;
            text-decoration: none;
        }
        .notice-content ul {
            margin: 0;
            padding-left: 20px;
        }
        .notice-content li {
            margin-bottom: 6px;
        }
        .notice-content .important {
            background: #fff5f5;
            color: #e74c3c;
            padding: 10px 12px;
            border-radius: 6px;
            margin: 10px 0;
        }
        .qq-row {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-wrap: wrap;
        }
        .qq-number {
            display: inline-block;
            padding: 4px 12px;
            background: #f0fff4;
            color: #059669;
            font-weight: bold;
            font-size: 16px;
            border-radius: 6px;
        }
        .copy-btn {
            padding: 4px 12px;
            background: #f5f5f5;
            border: 1px solid #e0e0e0;
            border-radius: 6px;
            font-size: 12px;
            color: #666;
            cursor: pointer;
            transition: all 0.2s;
        }
        .copy-btn:hover {
            background: #e0e0e0;
        }
        .copy-btn.copied {
            background: #f0fff4;
            border-color: #10b981;
            color: #10b981;
        }