/* ===== 帮助页 ===== */
.help-section {
    min-height: 80vh;
    padding-bottom: 80px;
}

/* 快速导航 */
.help-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 48px;
}

.help-nav-link {
    display: inline-block;
    padding: 8px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.help-nav-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-1px);
}

/* 帮助区块 */
.help-block {
    max-width: 800px;
    margin: 0 auto 48px;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    scroll-margin-top: 80px;
}

.help-block-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.help-content {
    color: var(--text-secondary);
    line-height: 1.8;
}

.help-content p {
    margin-bottom: 12px;
}

.help-content a {
    color: var(--accent);
    text-decoration: none;
}

.help-content a:hover {
    text-decoration: underline;
}

/* 步骤列表 */
.help-steps {
    list-style: none;
    counter-reset: step;
    padding: 0;
}

.help-steps li {
    counter-increment: step;
    padding-left: 48px;
    position: relative;
    margin-bottom: 24px;
}

.help-steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 0;
    width: 32px;
    height: 32px;
    background: var(--accent);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

.help-steps li strong {
    display: block;
    color: var(--text-primary);
    font-size: 16px;
    margin-bottom: 4px;
}

.help-steps li p {
    color: var(--text-secondary);
    font-size: 14px;
}

.help-steps code {
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: var(--accent);
}

/* 普通列表 */
.help-list {
    list-style: none;
    padding: 0;
}

.help-list li {
    padding: 8px 0 8px 20px;
    position: relative;
    color: var(--text-secondary);
}

.help-list li::before {
    content: '\2022';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 18px;
    line-height: 1;
}

.help-list li strong {
    color: var(--text-primary);
}

/* 提示框 */
.help-tip {
    background: rgba(79, 156, 249, 0.08);
    border-left: 3px solid var(--accent);
    padding: 12px 16px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 16px 0;
    font-size: 14px;
}

.help-tip strong {
    color: var(--accent);
}

/* FAQ 折叠 */
.faq-item {
    border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
    padding: 16px 0;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--accent);
}

.faq-icon {
    font-size: 20px;
    font-weight: 400;
    transition: transform 0.3s;
    color: var(--text-secondary);
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
}

.faq-item.open .faq-answer {
    max-height: 200px;
    padding-bottom: 16px;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .help-block {
        padding: 24px 16px;
    }

    .help-steps li {
        padding-left: 40px;
    }
}