/* ===========================================
   帮助中心专用样式 - 暖色商务风
   =========================================== */

main {
    padding-top: 72px;
    background: var(--bg-primary);
    min-height: calc(100vh - 72px);
}

/* ===========================================
   Hero 区域 - 暖色渐变背景
   =========================================== */

.help-hero {
    background: var(--accent-gradient);
    padding: 80px var(--space-md) 72px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.help-hero::before {
    content: '';
    position: absolute;
    top: -40%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50%;
    pointer-events: none;
}

.help-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -8%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 50%;
    pointer-events: none;
}

.help-hero-inner {
    max-width: 720px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.help-hero-title {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.help-hero-subtitle {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 40px;
    line-height: 1.7;
}

/* 搜索框 */
.help-search-box {
    display: flex;
    align-items: center;
    gap: 14px;
    max-width: 600px;
    margin: 0 auto;
    padding: 16px 24px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    transition: box-shadow var(--transition-normal);
}

.help-search-box:focus-within {
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.18);
}

.help-search-box i {
    font-size: 20px;
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.help-search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 16px;
    color: var(--text-primary);
    background: transparent;
    font-family: inherit;
    height: 24px;
    line-height: 24px;
}

.help-search-box input::placeholder {
    color: var(--text-tertiary);
}

/* ===========================================
   Quick Links - 横排文章卡片
   =========================================== */

.help-quick-links {
    max-width: 900px;
    margin: 0 auto;
    padding: 48px var(--space-md) 0;
}

.quick-links-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.quick-link-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px 28px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.quick-link-card:hover {
    border-color: var(--accent-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.quick-link-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: var(--accent-light);
    color: var(--accent-hover);
    font-size: 22px;
    flex-shrink: 0;
}

.quick-link-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.quick-link-content strong {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.quick-link-content span {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ===========================================
   Category Cards Grid - 3x2 分类入口
   =========================================== */

.help-categories {
    max-width: 1100px;
    margin: 0 auto;
    padding: 56px var(--space-md) 0;
}

.help-categories .section-header {
    margin-bottom: 36px;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.category-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 28px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-card);
    position: relative;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.category-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--accent-light);
    color: var(--accent-hover);
    font-size: 20px;
}

.category-card h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.category-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

.category-card-count {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===========================================
   Help Content Accordion
   =========================================== */

.help-accordion-section {
    max-width: 900px;
    margin: 0 auto;
    padding: 64px var(--space-md) 0;
}

.accordion-group {
    margin-bottom: 40px;
}

.accordion-group:last-child {
    margin-bottom: 0;
}

.accordion-group-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--accent-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.accordion-group-title i {
    color: var(--accent-color);
    font-size: 18px;
}

/* guide */
.accordion-group[data-category="guide"] {
    border-left: 4px solid #F59E0B;
    padding-left: 24px;
}

.accordion-group[data-category="guide"] .accordion-group-title {
    border-bottom-color: #F59E0B;
}

/* orders */
.accordion-group[data-category="orders"] {
    border-left: 4px solid #3B82F6;
    padding-left: 24px;
}

.accordion-group[data-category="orders"] .accordion-group-title {
    border-bottom-color: #3B82F6;
}

.accordion-group[data-category="orders"] .accordion-group-title i {
    color: #3B82F6;
}

/* inventory */
.accordion-group[data-category="inventory"] {
    border-left: 4px solid #10B981;
    padding-left: 24px;
}

.accordion-group[data-category="inventory"] .accordion-group-title {
    border-bottom-color: #10B981;
}

.accordion-group[data-category="inventory"] .accordion-group-title i {
    color: #10B981;
}

/* reports */
.accordion-group[data-category="reports"] {
    border-left: 4px solid #8B5CF6;
    padding-left: 24px;
}

.accordion-group[data-category="reports"] .accordion-group-title {
    border-bottom-color: #8B5CF6;
}

.accordion-group[data-category="reports"] .accordion-group-title i {
    color: #8B5CF6;
}

/* security */
.accordion-group[data-category="security"] {
    border-left: 4px solid #EF4444;
    padding-left: 24px;
}

.accordion-group[data-category="security"] .accordion-group-title {
    border-bottom-color: #EF4444;
}

.accordion-group[data-category="security"] .accordion-group-title i {
    color: #EF4444;
}

/* Accordion Items */
.accordion-item {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    overflow: hidden;
    transition: box-shadow var(--transition-normal);
}

.accordion-item:last-child {
    margin-bottom: 0;
}

.accordion-item:hover {
    box-shadow: var(--shadow-sm);
}

.accordion-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 18px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    text-align: left;
    transition: background var(--transition-fast);
}

.accordion-trigger:hover {
    background: var(--bg-secondary);
}

.accordion-trigger-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.accordion-trigger-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 12px;
    flex-shrink: 0;
    transition: all var(--transition-normal);
}

.accordion-item.open .accordion-trigger-arrow {
    transform: rotate(180deg);
    background: var(--accent-light);
    color: var(--accent-hover);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.accordion-item.open .accordion-content {
    max-height: 300px;
}

.accordion-content-inner {
    padding: 0 24px 20px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-secondary);
}

/* ===========================================
   Bottom CTA
   =========================================== */

.help-bottom-cta {
    max-width: 900px;
    margin: 0 auto;
    padding: 64px var(--space-md) 80px;
    text-align: center;
}

.help-bottom-cta-inner {
    padding: 48px 40px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
}

.help-bottom-cta-inner p {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
}

/* ===========================================
   Responsive Design
   =========================================== */

@media (max-width: 1024px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    main {
        padding-top: 64px;
    }

    .help-hero {
        padding: 56px var(--space-md) 48px;
    }

    .help-hero-title {
        font-size: 34px;
    }

    .help-hero-subtitle {
        font-size: 15px;
        margin-bottom: 28px;
    }

    .help-search-box {
        padding: 12px 18px;
    }

    .help-search-box input {
        font-size: 15px;
    }

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

    .help-quick-links {
        padding-top: 36px;
    }

    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .category-card {
        padding: 22px;
    }

    .help-categories {
        padding-top: 40px;
    }

    .help-accordion-section {
        padding-top: 48px;
    }

    .accordion-group {
        padding-left: 16px !important;
    }

    .accordion-trigger {
        padding: 16px 18px;
    }

    .accordion-content-inner {
        padding: 0 18px 16px;
        font-size: 14px;
    }

    .help-bottom-cta {
        padding: 48px var(--space-md) 64px;
    }

    .help-bottom-cta-inner {
        padding: 36px 24px;
    }
}

@media (max-width: 480px) {
    main {
        padding-top: 56px;
    }

    .help-hero {
        padding: 44px var(--space-sm) 40px;
    }

    .help-hero-title {
        font-size: 28px;
    }

    .help-hero-subtitle {
        font-size: 14px;
        margin-bottom: 24px;
    }

    .help-search-box {
        padding: 10px 14px;
        border-radius: var(--radius-md);
    }

    .help-search-box i {
        font-size: 18px;
    }

    .help-search-box input {
        font-size: 14px;
    }

    .quick-links-grid {
        gap: 12px;
    }

    .quick-link-card {
        padding: 18px 20px;
        gap: 14px;
    }

    .quick-link-icon {
        width: 44px;
        height: 44px;
        font-size: 18px;
    }

    .quick-link-content strong {
        font-size: 14px;
    }

    .categories-grid {
        grid-template-columns: 1fr;
    }

    .category-card {
        padding: 20px;
        gap: 10px;
    }

    .category-card-icon {
        width: 42px;
        height: 42px;
        font-size: 18px;
    }

    .category-card h3 {
        font-size: 15px;
    }

    .accordion-group-title {
        font-size: 17px;
    }

    .accordion-trigger-text {
        font-size: 14px;
    }

    .help-bottom-cta-inner p {
        font-size: 16px;
    }
}