/* ===== 帮助中心样式 ===== */
        .help-container {
            display: flex;
            max-width: 1200px;
            margin: 30px auto 30px;
            padding: 0 20px;
            flex: 1;
            gap: 30px;
            width: 100%;
        }
        
        /* 左侧导航 */
        .help-sidebar {
            width: 280px;
            background: var(--white);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 25px;
            height: fit-content;
            position: sticky;
            top: 90px;
        }
        
        .help-search {
            margin-bottom: 25px;
            position: relative;
        }
        
        .help-search input {
            width: 100%;
            padding: 12px 20px 12px 45px;
            border: 1px solid var(--light-gray);
            border-radius: 30px;
            font-size: 1rem;
            transition: all 0.3s;
        }
        
        .help-search input:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.2);
        }
        
        .help-search i {
            position: absolute;
            left: 20px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
        }
        
        .help-categories {
            margin-top: 20px;
        }
        
        .help-category {
            margin-bottom: 15px;
        }
        
        .help-category-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--dark);
            padding: 10px 0;
            border-bottom: 1px solid var(--light-gray);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }
        
        .help-category-title i {
            transition: transform 0.3s;
        }
        
        .help-category-title.active i {
            transform: rotate(180deg);
        }
        
        .help-questions {
            list-style: none;
            padding-left: 15px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
        }
        
        .help-category.active .help-questions {
            max-height: 1000px;
        }
        
        .help-questions li {
            margin: 12px 0;
        }
        
        .help-questions a {
            color: var(--text);
            text-decoration: none;
            display: block;
            padding: 8px 0;
            transition: all 0.2s;
            position: relative;
            padding-left: 20px;
        }
        
        .help-questions a:before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 6px;
            height: 6px;
            background: var(--text-light);
            border-radius: 50%;
        }
        
        .help-questions a:hover {
            color: var(--primary);
            padding-left: 25px;
        }
        
        .help-questions a.active {
            color: var(--primary);
            font-weight: 500;
        }
        
        .help-questions a.active:before {
            background: var(--primary);
        }
        
        .contact-support {
            background: rgba(46, 125, 50, 0.05);
            border-radius: var(--border-radius);
            padding: 20px;
            margin-top: 30px;
            border: 1px solid rgba(46, 125, 50, 0.1);
        }
        
        .contact-support h3 {
            font-size: 1.1rem;
            margin-bottom: 15px;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 10px;
            margin-top: 15px;
        }
        
        .contact-info div {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
            font-size: 0.95rem;
        }
        
        /* 右侧内容区 */
        .help-content {
            flex: 1;
            background: var(--white);
            border-radius: var(--border-radius);
            box-shadow: var(--box-shadow);
            padding: 40px;
        }
        
        .help-content-header {
            margin-bottom: 30px;
            padding-bottom: 20px;
            border-bottom: 1px solid var(--light-gray);
        }
        
        .help-content-header h1 {
            font-size: 2.2rem;
            color: var(--dark);
            margin-bottom: 15px;
        }
        
        .help-content-header p {
            color: var(--text-light);
            max-width: 800px;
            line-height: 1.7;
        }
        
        .question-section {
            margin-bottom: 50px;
        }
        
        .question-title {
            font-size: 1.6rem;
            margin-bottom: 20px;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        .question-title i {
            font-size: 1.2rem;
        }
        
        .question-content {
            line-height: 1.8;
            color: var(--text);
        }
        
        .question-content p {
            margin-bottom: 20px;
        }
        
        .question-content h3 {
            font-size: 1.2rem;
            margin: 25px 0 15px;
            color: var(--dark);
        }
        
        .steps {
            counter-reset: step-counter;
            margin: 20px 0;
        }
        
        .step {
            position: relative;
            padding-left: 45px;
            margin-bottom: 20px;
            min-height: 30px;
        }
        
        .step:before {
            counter-increment: step-counter;
            content: counter(step-counter);
            position: absolute;
            left: 0;
            top: 0;
            width: 30px;
            height: 30px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
        }
        
        .related-questions {
            background: rgba(46, 125, 50, 0.05);
            border-radius: var(--border-radius);
            padding: 25px;
            margin-top: 40px;
            border-left: 4px solid var(--primary);
        }
        
        .related-questions h3 {
            font-size: 1.2rem;
            margin-bottom: 15px;
            color: var(--dark);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .related-list {
            list-style: none;
        }
        
        .related-list li {
            margin: 12px 0;
        }
        
        .related-list a {
            color: var(--primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 8px;
            transition: all 0.2s;
        }
        
        .related-list a:hover {
            color: var(--primary-dark);
            padding-left: 5px;
        }
        
        .feedback-section {
            margin-top: 40px;
            padding-top: 30px;
            border-top: 1px solid var(--light-gray);
        }
        
        .feedback-buttons {
            display: flex;
            gap: 15px;
            margin-top: 20px;
        }
        
        .feedback-btn {
            padding: 10px 25px;
            border-radius: 30px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--light-gray);
            background: var(--white);
        }
        
        .feedback-btn.yes {
            color: var(--primary);
        }
        
        .feedback-btn.yes:hover {
            background: rgba(46, 125, 50, 0.1);
            border-color: var(--primary);
        }
        
        .feedback-btn.no {
            color: #e74c3c;
        }
        
        .feedback-btn.no:hover {
            background: rgba(231, 76, 60, 0.1);
            border-color: #e74c3c;
        }