/**
 * 支持页面统一样式
 * 适用于 FAQ、Shipping、Returns、Warranty、Sitemap 等页面
 */

/* ===== Hero 区域 ===== */
.support-hero {
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: calc(-1 * var(--header-height));
    padding-top: var(--header-height);
}

.support-hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.support-hero__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.support-hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 25, 41, 0.92) 0%, rgba(30, 58, 95, 0.88) 100%);
}

.support-hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--color-text-inverse);
    padding: var(--spacing-16) var(--spacing-6);
    max-width: 800px;
}

.support-hero__label {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent-500);
    margin-bottom: var(--spacing-4);
}

.support-hero__title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-4);
}

.support-hero__description {
    font-size: var(--font-size-lg);
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
    line-height: var(--line-height-relaxed);
}

/* ===== 面包屑导航 ===== */
.support-breadcrumb {
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--spacing-4) 0;
}

.support-breadcrumb .breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.support-breadcrumb .breadcrumb a {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.support-breadcrumb .breadcrumb a:hover {
    color: var(--color-primary-500);
}

.support-breadcrumb .breadcrumb i {
    font-size: 10px;
    opacity: 0.5;
}

/* ===== Section 标题 ===== */
.support-section {
    padding: var(--spacing-20) 0;
}

.support-section--gray {
    background: var(--color-bg-tertiary);
}

.support-section--dark {
    background: var(--color-primary-900);
    color: var(--color-text-inverse);
}

.support-section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-12);
}

.support-section__label {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-primary-500);
    margin-bottom: var(--spacing-3);
}

.support-section__title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-4);
}

.support-section--dark .support-section__title {
    color: var(--color-text-inverse);
}

.support-section__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

.support-section--dark .support-section__description {
    color: var(--color-gray-400);
}

/* ===== FAQ 搜索和筛选 ===== */
.faq-filter {
    background: var(--color-bg-tertiary);
    border-bottom: 1px solid var(--color-gray-200);
    padding: var(--spacing-6) 0;
    position: sticky;
    top: var(--header-height-scrolled);
    z-index: var(--z-sticky);
}

.faq-filter__inner {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

@media (min-width: 1024px) {
    .faq-filter__inner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.faq-search {
    position: relative;
    width: 100%;
    max-width: 400px;
}

.faq-search__icon {
    position: absolute;
    left: var(--spacing-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-gray-400);
}

.faq-search__input {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4) var(--spacing-3) var(--spacing-12);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-base);
    background: var(--color-bg-primary);
    transition: all var(--transition-fast);
}

.faq-search__input:focus {
    outline: none;
    border-color: var(--color-primary-500);
    box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.1);
}

.faq-categories {
    display: flex;
    gap: var(--spacing-2);
    overflow-x: auto;
    padding-bottom: var(--spacing-2);
    -webkit-overflow-scrolling: touch;
}

.faq-categories::-webkit-scrollbar {
    display: none;
}

.faq-category-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-5);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
    border: 1px solid var(--color-gray-200);
    background: var(--color-bg-primary);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq-category-btn:hover {
    background: var(--color-gray-100);
}

.faq-category-btn.active {
    background: var(--color-primary-500);
    border-color: var(--color-primary-500);
    color: var(--color-text-inverse);
    box-shadow: var(--shadow-md);
}

.faq-category-btn i {
    opacity: 0.7;
}

/* ===== FAQ 手风琴 ===== */
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq-group {
    margin-bottom: var(--spacing-12);
}

.faq-group__title {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-6);
}

.faq-group__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    color: var(--color-primary-500);
}

.faq-item {
    border: 1px solid var(--color-gray-100);
    border-radius: var(--radius-2xl);
    background: var(--color-bg-primary);
    margin-bottom: var(--spacing-4);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    border-color: var(--color-gray-200);
    box-shadow: var(--shadow-sm);
}

.faq-item.active {
    border-color: rgba(30, 136, 229, 0.3);
    box-shadow: var(--shadow-md);
}

.faq-item__question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--spacing-5) var(--spacing-6);
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.faq-item__question:hover {
    background: var(--color-bg-tertiary);
}

.faq-item.active .faq-item__question {
    color: var(--color-primary-500);
}

.faq-item__icon {
    color: var(--color-gray-400);
    transition: transform var(--transition-normal);
    flex-shrink: 0;
    margin-left: var(--spacing-4);
}

.faq-item.active .faq-item__icon {
    transform: rotate(180deg);
    color: var(--color-primary-500);
}

.faq-item__answer {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--transition-normal);
}

.faq-item.active .faq-item__answer {
    grid-template-rows: 1fr;
}

.faq-item__answer-inner {
    overflow: hidden;
}

.faq-item__answer-content {
    padding: 0 var(--spacing-6) var(--spacing-5);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    border-top: 1px solid var(--color-gray-100);
    margin-top: var(--spacing-2);
    padding-top: var(--spacing-4);
}

/* FAQ 无结果状态 */
.faq-no-results {
    text-align: center;
    padding: var(--spacing-16) var(--spacing-6);
}

.faq-no-results__icon {
    width: 80px;
    height: 80px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-6);
    color: var(--color-gray-300);
    font-size: 40px;
}

.faq-no-results__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2);
}

.faq-no-results__text {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-6);
}

/* ===== 信息卡片网格 ===== */
.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-6);
}

.info-cards--2-col {
    grid-template-columns: repeat(2, 1fr);
}

@media (max-width: 768px) {
    .info-cards--2-col {
        grid-template-columns: 1fr;
    }
}

.info-card {
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-100);
    background: rgba(248, 249, 250, 0.5);
    transition: all var(--transition-normal);
}

.info-card--compact {
    padding: var(--spacing-4);
}

.info-card--compact .info-card__icon {
    width: 40px;
    height: 40px;
    font-size: 16px;
    margin-bottom: var(--spacing-3);
}

.info-card--compact .info-card__title {
    font-size: var(--font-size-base);
}

.info-card--compact .info-card__description {
    margin-bottom: 0;
}

.info-card:hover {
    background: var(--color-bg-primary);
    box-shadow: var(--shadow-xl);
    border-color: rgba(30, 136, 229, 0.2);
    transform: translateY(-4px);
}

.info-card__icon {
    width: 64px;
    height: 64px;
    background: var(--color-bg-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-6);
    color: var(--color-primary-500);
    font-size: 28px;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal);
}

.info-card:hover .info-card__icon {
    transform: scale(1.1);
}

.info-card__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2);
}

.info-card__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--color-primary-500);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-4);
}

.info-card__description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-6);
}

.info-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    padding-top: var(--spacing-6);
    border-top: 1px solid var(--color-gray-100);
}

.info-card__tag {
    padding: var(--spacing-1) var(--spacing-2);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-gray-100);
    border-radius: var(--radius-sm);
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-secondary);
}

/* ===== 流程时间线 ===== */
.process-timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.process-timeline__track {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-8);
    position: relative;
}

@media (min-width: 1024px) {
    .process-timeline__track::before {
        content: '';
        position: absolute;
        top: 32px;
        left: 40px;
        right: 40px;
        height: 2px;
        background: rgba(255, 255, 255, 0.1);
    }
}

.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.process-step__number {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background: var(--color-primary-500);
    border: 4px solid var(--color-primary-900);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-inverse);
    margin-bottom: var(--spacing-6);
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 1;
    transition: transform var(--transition-normal);
}

.process-step:hover .process-step__number {
    transform: scale(1.1);
}

.process-step__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-2);
}

.process-step__description {
    font-size: var(--font-size-sm);
    opacity: 0.7;
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-3);
}

.process-step__time {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-2);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-accent-500);
}

/* 垂直流程（用于 Returns 等页面） */
.process-vertical {
    max-width: 700px;
    margin: 0 auto;
}

.process-vertical__item {
    display: flex;
    gap: var(--spacing-6);
    align-items: flex-start;
    margin-bottom: var(--spacing-6);
}

.process-vertical__number {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: var(--color-primary-500);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-inverse);
    flex-shrink: 0;
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-normal);
}

.process-vertical__item:hover .process-vertical__number {
    transform: scale(1.1);
}

.process-vertical__content {
    flex: 1;
    padding: var(--spacing-6);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-gray-100);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-6);
    transition: all var(--transition-normal);
}

.process-vertical__item:hover .process-vertical__content {
    border-color: rgba(30, 136, 229, 0.2);
    box-shadow: var(--shadow-xl);
}

.process-vertical__icon {
    width: 48px;
    height: 48px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-500);
    flex-shrink: 0;
}

.process-vertical__text h4 {
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-1);
}

.process-vertical__text p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ===== 高亮统计卡片 ===== */
.highlight-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-6);
}

.highlight-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--spacing-6);
    background: var(--color-bg-primary);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-100);
    box-shadow: var(--shadow-sm);
}

.highlight-stat__icon {
    font-size: 32px;
    margin-bottom: var(--spacing-3);
}

.highlight-stat__value {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.highlight-stat__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: var(--font-weight-medium);
}

/* ===== 对比列表 ===== */
.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
    max-width: 1000px;
    margin: 0 auto;
}

.comparison-card {
    background: var(--color-bg-primary);
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-200);
}

.comparison-card__header {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-6);
}

.comparison-card__header--success {
    color: var(--color-success);
}

.comparison-card__header--error {
    color: var(--color-error);
}

.comparison-card__list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.comparison-card__list li {
    display: flex;
    gap: var(--spacing-3);
    padding: var(--spacing-3) 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    border-bottom: 1px solid var(--color-gray-100);
}

.comparison-card__list li:last-child {
    border-bottom: none;
}

.comparison-card__list li span:first-child {
    font-weight: var(--font-weight-semibold);
}

/* ===== 提醒卡片 ===== */
.notice-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.notice-card {
    display: flex;
    gap: var(--spacing-4);
    padding: var(--spacing-5);
    border-radius: var(--radius-xl);
    border: 1px solid;
}

.notice-card--info {
    background: #EFF6FF;
    border-color: #BFDBFE;
}

.notice-card--warning {
    background: #FFFBEB;
    border-color: #FDE68A;
}

.notice-card--success {
    background: #ECFDF5;
    border-color: #A7F3D0;
}

.notice-card__icon {
    flex-shrink: 0;
    margin-top: 2px;
}

.notice-card--info .notice-card__icon {
    color: #3B82F6;
}

.notice-card--warning .notice-card__icon {
    color: #F59E0B;
}

.notice-card--success .notice-card__icon {
    color: #10B981;
}

.notice-card__content h4 {
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-1);
}

.notice-card__content p {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ===== CTA 区域 ===== */
.support-cta {
    text-align: center;
    padding: var(--spacing-20) 0;
}

.support-cta--primary {
    background: var(--color-primary-500);
    color: var(--color-text-inverse);
}

/* ===== 网站地图 ===== */
.sitemap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-8);
}

.sitemap-section {
    background: var(--color-bg-primary);
    padding: var(--spacing-8);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-100);
    box-shadow: var(--shadow-sm);
}

.sitemap-section__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-4);
    border-bottom: 2px solid var(--color-primary-500);
}

.sitemap-section__links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sitemap-section__links li {
    margin-bottom: var(--spacing-3);
}

.sitemap-section__links a {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.sitemap-section__links a:hover {
    color: var(--color-primary-500);
    padding-left: var(--spacing-2);
}

.sitemap-section__links a i {
    font-size: var(--font-size-xs);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.sitemap-section__links a:hover i {
    opacity: 1;
}

/* ===== 重要指南面板 ===== */
.guidelines-panel {
    background: var(--color-primary-500);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-10);
    color: var(--color-text-inverse);
    position: relative;
    overflow: hidden;
}

.guidelines-panel::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-full);
}

.guidelines-panel__content {
    position: relative;
    z-index: 1;
}

.guidelines-panel__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-6);
}

.guidelines-panel__list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-8);
}

.guidelines-panel__item {
    display: flex;
    gap: var(--spacing-4);
}

.guidelines-panel__item i {
    opacity: 0.6;
    flex-shrink: 0;
    margin-top: 4px;
}

.guidelines-panel__item p {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    line-height: var(--line-height-relaxed);
}

.guidelines-panel__actions {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

/* ===== 响应式调整 ===== */
@media (max-width: 768px) {
    .support-hero {
        min-height: 350px;
    }

    .support-hero__title {
        font-size: var(--font-size-2xl);
    }

    .support-section {
        padding: var(--spacing-12) 0;
    }

    .process-vertical__content {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }

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

    .guidelines-panel {
        padding: var(--spacing-6);
    }

    .guidelines-panel__actions {
        flex-direction: column;
    }

    .guidelines-panel__actions .btn {
        width: 100%;
    }

    .info-cards {
        grid-template-columns: 1fr;
    }
}

/* ===== 深色背景按钮变体 ===== */
.btn--white {
    background: white;
    color: var(--color-primary-500);
    border: none;
}

.btn--white:hover {
    background: var(--color-gray-100);
    transform: translateY(-2px);
}

.btn--outline-white {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
}

.btn--outline-white:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

/* ===== 统一 CTA 组件 ===== */
.support-cta__content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.support-cta__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-4);
}

.support-section--dark .support-cta__title {
    color: var(--color-text-inverse);
}

.support-cta__desc {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-8);
    line-height: var(--line-height-relaxed);
}

.support-section--dark .support-cta__desc {
    color: var(--color-gray-400);
}

.support-cta__actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

/* ===== 内容区块工具类 ===== */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-16);
}

.content-block {
    background: var(--color-bg-primary);
    padding: var(--spacing-6);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-200);
}

.content-block--transparent {
    background: transparent;
    border: none;
    padding: 0;
}

.content-block__title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-8);
}

.content-block__subtitle {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-4);
}

/* ===== 列表样式 ===== */
.list-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.list-features li {
    display: flex;
    gap: var(--spacing-3);
    padding: var(--spacing-2) 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.list-features--success .list-features__icon {
    color: var(--color-success);
}

.list-features--error .list-features__icon {
    color: var(--color-error);
}

/* ===== 信息提示框 ===== */
.info-box {
    padding: var(--spacing-6);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--color-gray-100);
    margin-top: var(--spacing-8);
}

.info-box__title {
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-2);
}

.info-box__text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

@media (max-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }

    .support-cta__actions {
        flex-direction: column;
    }

    .support-cta__actions .btn {
        width: 100%;
    }
}