/* =========================================
   【解决方案】页面专属 CSS (Solutions Specific)
   维护记录：已剥离弹窗与悬浮条，专注方案页结构与响应式
========================================= */

/* 0. Banner */
.solutions-banner { background-color: var(--auth-blue-dark, #172554); background-image: linear-gradient(to right, rgba(23, 37, 84, 0.95), rgba(30, 58, 138, 0.78)), url('https://www.168tzc.com/upfile/2026/01/1769757989261.jpg'); background-size: cover; background-position: center; padding: 60px 0 40px; color: var(--white, #ffffff); border-bottom: 4px solid var(--eco-green, #059669); }
.page-title { font-size: 2.5rem; font-weight: 900; margin-bottom: 10px; }
.page-desc { color: #cbd5e1; font-size: 1.1rem; margin-bottom: 25px; max-width: 860px; line-height: 1.7; }
.breadcrumbs { font-size: 0.9rem; color: #94a3b8; }
.breadcrumbs a { color: #cbd5e1; transition: var(--transition, all 0.3s ease); text-decoration: none; }
.breadcrumbs a:hover { color: var(--warn-yellow, #f59e0b); }
.breadcrumbs span { color: var(--warn-yellow, #f59e0b); font-weight: 700; }

/* 1. 悬浮分类锚点导航 */
.category-sticky-nav { background: var(--white, #ffffff); border-bottom: 1px solid var(--border-color, #e2e8f0); position: sticky; top: 85px; z-index: 990; box-shadow: 0 4px 10px rgba(0,0,0,0.02); }
.sticky-nav-inner { display: flex; justify-content: center; gap: 30px; overflow-x: auto; white-space: nowrap; padding: 15px 24px; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
.sticky-nav-inner::-webkit-scrollbar { display: none; }
.anchor-link { color: var(--text-main, #1e293b); font-weight: 700; font-size: 1.05rem; padding: 8px 0; border-bottom: 3px solid transparent; transition: var(--transition, all 0.3s ease); text-decoration: none; }
.anchor-link.active, .anchor-link:hover { color: var(--auth-blue, #1e3a8a); border-bottom-color: var(--eco-green, #059669); }

/* 2. 解决方案内容主体 */
.solutions-page-content { padding: 80px 0 100px; background-color: var(--white, #ffffff); }
.solution-overview { display: grid; grid-template-columns: minmax(260px, 1fr) 1.25fr; gap: 34px; align-items: center; margin-bottom: 70px; padding: 28px 32px; background: #f8fafc; border: 1px solid var(--border-color, #e2e8f0); border-left: 4px solid var(--warn-yellow, #f59e0b); border-radius: 8px; box-shadow: 0 8px 22px rgba(15, 23, 42, 0.04); }
.overview-copy span { display: inline-flex; align-items: center; gap: 8px; color: var(--warn-yellow-hover, #d97706); font-size: 0.9rem; font-weight: 900; margin-bottom: 8px; }
.overview-copy h2 { margin: 0 0 10px; color: var(--auth-blue-dark, #172554); font-size: 1.45rem; line-height: 1.35; font-weight: 900; }
.overview-copy p { margin: 0; color: var(--text-light, #64748b); font-size: 0.96rem; line-height: 1.8; }
.overview-points { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.overview-points div { min-height: 92px; padding: 16px; background: #ffffff; border: 1px solid var(--border-color, #e2e8f0); border-radius: 6px; }
.overview-points b { display: block; color: var(--auth-blue, #1e3a8a); font-size: 1rem; font-weight: 900; margin-bottom: 6px; }
.overview-points em { color: var(--text-light, #64748b); font-style: normal; font-size: 0.88rem; line-height: 1.55; }

/* 图文左右交替区块 */
.solution-block { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; margin-bottom: 100px; padding-bottom: 80px; border-bottom: 1px solid var(--border-color, #e2e8f0); }
.solution-block:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.solution-block-last { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
/* 重点：交替反向排版，右侧图左侧文 */
.solution-block.reverse .sol-text-area { order: 2; }

/* 3. 文本与痛点区域 */
.section-badge { display: inline-block; padding: 6px 14px; background: rgba(5, 150, 105, 0.1); color: var(--eco-green, #059669); font-weight: 800; border-radius: 4px; margin-bottom: 15px; letter-spacing: 1px; font-size: 0.9rem; }
.sol-title { font-size: 2.2rem; color: var(--auth-blue, #1e3a8a); font-weight: 900; margin-bottom: 20px; line-height: 1.3; }

.sol-pain-point { background: #fffbeb; color: var(--warn-yellow-hover, #d97706); padding: 15px 20px; border-left: 4px solid var(--warn-yellow, #f59e0b); border-radius: 0 6px 6px 0; margin-bottom: 20px; font-size: 0.95rem; line-height: 1.6; }
.sol-pain-point strong { color: var(--warn-yellow-hover, #d97706); font-weight: 900; }

.sol-desc { color: var(--text-light, #64748b); font-size: 1.05rem; line-height: 1.8; margin-bottom: 25px; }

/* 优势列表 */
.sol-benefits { list-style: none; margin-bottom: 35px; padding-left: 0; }
.sol-benefits li { margin-bottom: 12px; font-size: 1.05rem; color: var(--text-main, #1e293b); font-weight: 700; display: flex; align-items: center; gap: 10px; }
.sol-benefits i { color: var(--eco-green, #059669); font-size: 1.2rem; }
.sol-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.sol-actions .btn { min-height: 46px; }

/* 4. 右侧设备展示矩阵 */
.sol-equipment-matrix { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.sol-equipment-single { grid-template-columns: 1fr; }

.eq-mini-card { background: var(--white, #ffffff); border: 1px solid var(--border-color, #e2e8f0); border-radius: 8px; overflow: hidden; box-shadow: 0 5px 15px rgba(0,0,0,0.03); transition: var(--transition, all 0.3s ease); }
.eq-mini-card:hover { transform: translateY(-5px); border-color: var(--auth-blue, #1e3a8a); box-shadow: 0 15px 30px rgba(30,58,138,0.1); }
.eq-mini-card,
.eq-full-card { display: block; color: inherit; text-decoration: none; }
.eq-span-all { grid-column: 1 / -1; }
.eq-img { height: 160px; background-size: cover; background-position: center; background-color: #f1f5f9; transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.eq-img-community-truck { background-image: url('https://www.168tzc.com/upfile/2026/01/1769771886577.jpg'); }
.eq-img-mobile-box { background-image: url('https://www.168tzc.com/upfile/2026/01/1768657753212.jpg'); }
.eq-img-hooklift { background-image: url('https://www.168tzc.com/upfile/2026/01/1769757989261.jpg'); }
.eq-img-collection-truck { background-image: url('https://www.168tzc.com/upfile/2026/01/1769770593341.jpg'); }
.eq-img-vertical-station { background-image: url('https://www.168tzc.com/upfile/2026/01/1769349625324.jpg'); }
.eq-img-heavy-transfer { background-image: url('https://www.168tzc.com/upfile/2026/01/1769612314500.jpg'); }
.eq-img-station-render { background-image: url('https://fc-ccimage.baidu.com/0/pic/299181467_-1626402404_1615878854.jpg'); }
.eq-img-tall { height: 200px; }
.eq-img-hero { height: 350px; }
.eq-mini-card:hover .eq-img { transform: scale(1.08); }
.eq-mini-card h4 { font-size: 1.05rem; color: var(--auth-blue, #1e3a8a); font-weight: 900; margin: 15px 15px 5px; }
.eq-mini-card p { font-size: 0.85rem; color: var(--text-light, #64748b); margin: 0 15px 15px; }

.eq-full-card { grid-column: 1 / -1; background: var(--white, #ffffff); border: 1px solid var(--border-color, #e2e8f0); border-radius: 8px; overflow: hidden; box-shadow: 0 5px 15px rgba(0,0,0,0.03); transition: var(--transition, all 0.3s ease); }
.eq-full-card:hover { transform: translateY(-5px); border-color: var(--auth-blue, #1e3a8a); box-shadow: 0 15px 30px rgba(30,58,138,0.1); }
.eq-full-card .eq-img { height: 280px; transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.eq-full-card:hover .eq-img { transform: scale(1.05); }
.eq-full-info { padding: 25px; }
.eq-full-info h4 { font-size: 1.2rem; color: var(--auth-blue, #1e3a8a); font-weight: 900; margin-bottom: 10px; }
.eq-full-info p { font-size: 0.95rem; color: var(--text-light, #64748b); line-height: 1.6; margin: 0; }

/* 5. 底部引导转化区 */
.solution-bottom-cta { text-align: center; margin-top: 40px; padding-top: 50px; border-top: 1px dashed var(--border-color, #e2e8f0); }
.solution-bottom-cta h3 { color: var(--auth-blue, #1e3a8a); font-size: 1.8rem; margin-bottom: 20px; font-weight: 900; }
.solution-bottom-cta p { color: var(--text-light, #64748b); font-size: 1rem; line-height: 1.7; max-width: 700px; margin: -8px auto 24px; }
.bottom-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* =========================================
   6. 移动端/平板响应式适配
========================================= */
@media (max-width: 1024px) {
    /* 强行转为单列，且取消图片/文字左右交替显示，统一文字在上图片在下 */
    .solution-overview { grid-template-columns: 1fr; gap: 22px; margin-bottom: 50px; }
    .solution-block { grid-template-columns: 1fr; gap: 40px; margin-bottom: 70px; padding-bottom: 60px; }
    .solution-block.reverse .sol-text-area { order: 0; } 
    .sol-title { font-size: 1.8rem; }
}

@media (max-width: 768px) {
    .solutions-page-content { padding: 50px 0 80px; }
    
    /* 移动端导航条滑动与防切断 */
    .sticky-nav-inner { 
        justify-content: flex-start; /* 取消 PC 端的居中，防止移动端左侧被切断无法滑动 */
        gap: 20px; 
        padding: 12px 20px; 
    }
    .anchor-link { font-size: 0.95rem; }

    .solutions-banner { padding: 48px 0 34px; }
    .page-title { font-size: 2rem; }
    .page-desc { font-size: 1rem; }
    .solution-overview { padding: 22px 20px; }
    .overview-points { grid-template-columns: 1fr; }
    .sol-actions { flex-direction: column; align-items: stretch; }
    .sol-actions .btn { width: 100%; }
    .sol-equipment-matrix { grid-template-columns: 1fr; gap: 15px; }
    .eq-full-card .eq-img { height: 200px; }
    .solution-bottom-cta h3 { font-size: 1.4rem; line-height: 1.4; }
    .bottom-actions { flex-direction: column; }
    .bottom-actions .btn { width: 100%; }
}