/* ========== 全局重置 & 基础 ========== */
* {
    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: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* ========== 面包屑 ========== */
.breadcrumb {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px 24px;
    font-size: 13px;
    color: #95a5a6;
}
.breadcrumb a {
    color: #3498db;
    text-decoration: none;
}
.breadcrumb span {
    margin: 0 8px;
    color: #000000;
}

/* ========== 容器 ========== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* ========== 区块卡片 ========== */
.section {
    background: #fff;
    border-radius: 16px;
    padding: 28px 32px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}
.section-header {
    display: flex;
    align-items: center;
    margin-bottom: 24px;
}
.section-title {
    display: flex;
    align-items: center;
    gap: 12px;
}
.section-title-bar {
    width: 4px;
    height: 20px;
    background: linear-gradient(180deg, #3498db 0%, #2980b9 100%);
    border-radius: 2px;
}
.section-title h2 {
    font-size: 20px;
    font-weight: 600;
    color: #1f2d3d;
}
.section-desc {
    font-size: 13px;
    color: #8a96a3;
    margin-left: 12px;
}

/* ========== 回收流程步骤 ========== */
.process-steps {
    display: flex;
    gap: 0;
    align-items: flex-start;
    position: relative;
}
.process-step {
    flex: 1;
    text-align: center;
    position: relative;
    padding: 0 12px;
}
.step-icon-wrap {
    position: relative;
    margin-bottom: 16px;
}
.step-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    font-size: 30px;
    position: relative;
    z-index: 2;
    transition: all 0.3s;
}
.step-icon.blue {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
}
.step-icon.green {
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
}
.step-icon.orange {
    background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
}
.step-icon.purple {
    background: linear-gradient(135deg, #f3e5f5 0%, #e1bee7 100%);
}
.step-icon.cyan {
    background: linear-gradient(135deg, #e0f7fa 0%, #b2ebf2 100%);
}
.process-step:hover .step-icon {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(52, 152, 219, 0.2);
}
.step-num {
    position: absolute;
    top: -6px;
    right: calc(50% - 42px);
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: #fff;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    box-shadow: 0 2px 6px rgba(52, 152, 219, 0.3);
}
.step-connector {
    position: absolute;
    top: 36px;
    left: calc(50% + 36px);
    width: calc(100% - 72px);
    height: 2px;
    background: linear-gradient(90deg, #3498db 0%, #bcd4ea 100%);
    z-index: 1;
}
.process-step:last-child .step-connector {
    display: none;
}
.step-title {
    font-size: 15px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 6px;
}
.step-desc {
    font-size: 13px;
    color: #7f8c8d;
    line-height: 1.6;
}

/* ========== 操作视频 ========== */
.video-wrap {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    background: #000;
    aspect-ratio: 16 / 9;
}
.video-wrap video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.video-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: #fff;
    gap: 12px;
}
.video-play-btn {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(52, 152, 219, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 20px rgba(52, 152, 219, 0.4);
}
.video-play-btn:hover {
    transform: scale(1.1);
    background: rgba(52, 152, 219, 1);
}
.video-placeholder span {
    font-size: 14px;
    opacity: 0.7;
}

/* ========== 详细流程说明 ========== */
.detail-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}
.detail-item {
    display: flex;
    gap: 24px;
    padding: 24px;
    background: #fafbfc;
    border-radius: 12px;
    border: 1px solid #eef1f5;
    transition: all 0.3s;
}
.detail-item:hover {
    background: #fff;
    border-color: #bcd4ea;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.08);
}
.detail-num {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: #fff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 700;
    flex-shrink: 0;
}
.detail-content {
    flex: 1;
}
.detail-content h3 {
    font-size: 16px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
}
.detail-content p {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
    margin-bottom: 16px;
}
.detail-image {
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    background: #f0f2f5;
    border: 1px solid #eef1f5;
}
.detail-image img {
    width: 100%;
    height: auto;
    display: block;
}
.detail-image-placeholder {
    width: 100%;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f2f5 0%, #e8ecf0 100%);
    color: #95a5a6;
    font-size: 13px;
    flex-direction: column;
    gap: 8px;
}
.detail-image-placeholder::before {
    content: '\1F5BC';
    font-size: 32px;
    opacity: 0.5;
}

/* ========== 支持的卡券类型 ========== */
.card-types {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.card-type-item {
    text-align: center;
    padding: 20px 16px;
    background: linear-gradient(135deg, #f8fafc 0%, #fff 100%);
    border-radius: 12px;
    border: 1px solid #eef1f5;
    transition: all 0.3s;
    text-decoration: none;
}
.card-type-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(52, 152, 219, 0.1);
    border-color: #bcd4ea;
}
.card-type-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 10px;
}
.card-type-icon.blue {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
}
.card-type-icon.green {
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
}
.card-type-icon.orange {
    background: linear-gradient(135deg, #fff3e0, #ffe0b2);
}
.card-type-icon.purple {
    background: linear-gradient(135deg, #f3e5f5, #e1bee7);
}
.card-type-icon.red {
    background: linear-gradient(135deg, #ffebee, #ffcdd2);
}
.card-type-icon.cyan {
    background: linear-gradient(135deg, #e0f7fa, #b2ebf2);
}
.card-type-icon.pink {
    background: linear-gradient(135deg, #fce4ec, #f8bbd9);
}
.card-type-icon.yellow {
    background: linear-gradient(135deg, #fffde7, #fff9c4);
}
.card-type-item h3 {
    font-size: 14px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 4px;
}
.card-type-item p {
    font-size: 12px;
    color: #95a5a6;
}

/* ========== 温馨提示 ========== */
.notice-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
.notice-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 20px;
    background: #fafbfc;
    border-radius: 10px;
    border: 1px solid #eef1f5;
    transition: all 0.3s;
}
.notice-item:hover {
    background: #fff;
    border-color: #bcd4ea;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.06);
}
.notice-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
}
.notice-text {
    font-size: 13px;
    color: #555;
    line-height: 1.7;
}
.notice-text strong {
    color: #2c3e50;
    font-weight: 600;
}

/* ========== 常见问题 ========== */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: #fafbfc;
    border-radius: 12px;
    border: 1px solid #eef1f5;
    overflow: hidden;
    transition: all 0.3s;
}
.faq-item:hover {
    border-color: #bcd4ea;
}
.faq-question {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    cursor: pointer;
    transition: background 0.2s;
}
.faq-question:hover {
    background: #f5f7fa;
}
.faq-q-icon {
    width: 24px;
    height: 24px;
    background: #3498db;
    color: #fff;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
}
.faq-question h3 {
    flex: 1;
    font-size: 14px;
    font-weight: 600;
    color: #2c3e50;
}
.faq-arrow {
    font-size: 12px;
    color: #bbb;
    transition: transform 0.3s;
}
.faq-item.active .faq-arrow {
    transform: rotate(180deg);
    color: #3498db;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 20px 16px 56px;
}
.faq-answer p {
    font-size: 13px;
    color: #666;
    line-height: 1.7;
}

/* ========== CTA 行动号召 ========== */
.cta-section {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    border-radius: 16px;
    padding: 40px 32px;
    text-align: center;
    color: #fff;
}
.cta-section h2 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 10px;
}
.cta-section p {
    font-size: 14px;
    opacity: 0.85;
    margin-bottom: 24px;
}
.cta-btn {
    display: inline-block;
    padding: 12px 40px;
    background: #fff;
    color: #3498db;
    font-size: 15px;
    font-weight: 600;
    border-radius: 24px;
    text-decoration: none;
    transition: all 0.3s;
}
.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* ========== 页脚 ========== */
.footer {
    background: #2c3e50;
    color: #bdc3c7;
    padding: 32px 24px 16px;
    margin-top: 40px;
}
.footer-inner {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 24px;
}
.footer-brand h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: #3498db;
}
.footer-brand p {
    font-size: 12px;
    color: #bdc3c7;
    line-height: 1.7;
}
.footer-col h4 {
    font-size: 14px;
    margin-bottom: 12px;
    color: #fff;
    font-weight: 600;
}
.footer-col a {
    display: block;
    font-size: 12px;
    color: #bdc3c7;
    margin-bottom: 6px;
    text-decoration: none;
    transition: color 0.2s;
}
.footer-col a:hover {
    color: #3498db;
}
.footer-bottom {
    max-width: 1280px;
    margin: 24px auto 0;
    padding-top: 16px;
    border-top: 1px solid #34495e;
    text-align: center;
    font-size: 12px;
    color: #7f8c8d;
}
.footer-bottom a {
    color: #7f8c8d;
    text-decoration: none;
}
.footer-bottom a[style*="color: #3498db"] {
    color: #3498db !important;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .process-steps {
        flex-wrap: wrap;
        gap: 16px;
    }
    .process-step {
        flex: none;
        width: calc(33.33% - 12px);
    }
    .step-connector {
        display: none;
    }
    .card-types {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .breadcrumb {
        padding: 12px 16px;
        font-size: 12px;
    }
    .container {
        padding: 0 16px 16px;
        gap: 16px;
    }
    .section {
        padding: 20px 16px;
        border-radius: 12px;
    }
    .section-title h2 {
        font-size: 18px;
    }
    .process-step {
        width: calc(50% - 8px);
    }
    .card-types {
        grid-template-columns: repeat(2, 1fr);
    }
    .notice-list {
        grid-template-columns: 1fr;
    }
    .footer-inner {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px 12px;
        gap: 12px;
    }
    .section {
        padding: 16px 12px;
    }
    .section-title h2 {
        font-size: 16px;
    }
    .section-desc {
        display: none;
    }
    .process-step {
        width: 100%;
    }
    .step-icon {
        width: 56px;
        height: 56px;
        font-size: 24px;
    }
    .detail-item {
        flex-direction: column;
        gap: 12px;
    }
    .card-types {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
}