/* ============================================================
   一级栏目页独立样式 column.css
   ============================================================ */

/* 栏目简介 */
.col-intro{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.col-intro p{color:var(--ink-600);line-height:2;font-size:15px}
.col-intro p+p{margin-top:16px}
.col-intro strong{color:var(--navy-900);font-weight:800}
.col-intro-keys{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.col-intro-keys .tag{padding:7px 16px;font-size:12.5px}

/* 板块服务项目 · 卡片式循环动态展示 */
.biz-side{background:var(--bg-soft);border:1px solid var(--line-soft);border-radius:var(--radius-lg);padding:30px 28px}
.biz-side h4{font-size:16px;font-weight:800;color:var(--navy-900);margin-bottom:18px;display:flex;align-items:center;gap:10px}
.biz-side h4::before{content:"";width:14px;height:2px;background:var(--grad-gold)}
.side-carousel{position:relative;overflow:hidden;height:470px;mask-image:linear-gradient(180deg,transparent 0,#000 30px,#000 calc(100% - 30px),transparent 100%);-webkit-mask-image:linear-gradient(180deg,transparent 0,#000 30px,#000 calc(100% - 30px),transparent 100%)}
.side-track{display:flex;flex-direction:column;animation:sideLoop 22s linear infinite}
.side-carousel:hover .side-track{animation-play-state:paused}
.side-group{display:flex;flex-direction:column;gap:13px;padding-bottom:13px}
@keyframes sideLoop{0%{transform:translateY(0)}100%{transform:translateY(-50%)}}
.side-card{display:flex;align-items:center;gap:15px;padding:16px 18px;background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);text-decoration:none;transition:transform .28s var(--ease-out),box-shadow .28s,border-color .28s}
.side-card:hover{transform:translateX(6px);border-color:var(--gold-300);box-shadow:var(--shadow-md)}
.side-card>i{flex-shrink:0;width:44px;height:44px;border-radius:12px;background:var(--grad-navy);color:var(--gold-300);display:flex;align-items:center;justify-content:center;font-size:18px}
.side-card div{min-width:0}
.side-card b{display:block;font-size:14.5px;color:var(--navy-900);margin-bottom:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-card span{display:block;font-size:12px;color:var(--gold-600);font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-card .fa-chevron-right{color:var(--gold-400);font-size:12px}

/* 二级栏目卡片（服务项目） */
.sub-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.sub-grid-2{grid-template-columns:repeat(2,1fr)}
.sub-card{position:relative;display:flex;flex-direction:column;padding:30px 28px 24px;overflow:hidden;transition:transform .32s var(--ease-out),box-shadow .32s,border-color .32s}
.sub-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-gold);opacity:.85;transition:opacity .3s}
.sub-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--gold-200)}
.sub-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.sub-card .card-icon{width:50px;height:50px;flex-shrink:0;border-radius:13px;background:var(--grad-navy);color:var(--gold-300);display:flex;align-items:center;justify-content:center;font-size:21px;box-shadow:0 8px 18px rgba(10,34,68,.18)}
.sub-price-tag{display:inline-flex;align-items:center;padding:5px 12px;border-radius:999px;background:var(--gold-100);border:1px solid var(--gold-200);color:var(--gold-600);font-size:12.5px;font-weight:800;white-space:nowrap}
.sub-card .card-title{font-size:17.5px;margin-bottom:10px}
.sub-card .card-desc{font-size:13.5px;color:var(--ink-600);line-height:1.85;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:50px}
.sub-points{margin:16px 0 22px;padding-top:16px;border-top:1px dashed var(--line-soft);display:flex;flex-direction:column;gap:9px;font-size:13px;color:var(--ink-600)}
.sub-points li{display:flex;gap:9px;align-items:flex-start}
.sub-points .fa-solid{font-size:10px;color:var(--gold-500);margin-top:6px;flex-shrink:0}
.sub-card .card-link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:800;color:var(--navy-900);transition:color .25s,gap .25s}
.sub-card .card-link:hover{color:var(--gold-600);gap:12px}
.sub-card .card-link .fa-solid{font-size:11px;color:var(--gold-500)}
.sub-card.sub-cta{background:linear-gradient(160deg,#FBF6EA, #F4EBD6);border-color:var(--gold-200);text-decoration:none}
.sub-card.sub-cta::before{opacity:1}
.sub-card.sub-cta .card-icon{background:var(--grad-gold);color:#0A2244}
.sub-cta-btn{margin-top:auto;align-self:flex-start;padding:10px 24px;font-size:13.5px}

/* 栏目优势 */
.col-adv{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.col-adv-item{text-align:center;padding:34px 20px;background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-md);transition:transform .3s var(--ease-out),box-shadow .3s,border-color .3s}
.col-adv-item:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--gold-200)}
.col-adv-item .fa-solid{font-size:28px;color:var(--gold-500);margin-bottom:14px}
.col-adv-item h4{font-size:15.5px;font-weight:800;color:var(--navy-900);margin-bottom:8px}
.col-adv-item p{font-size:12.5px;color:var(--ink-600);line-height:1.8}

/* 相关栏目 */
.rel-col{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-col a{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-md);padding:20px 22px;transition:transform .3s,border-color .3s,box-shadow .3s}
.rel-col a:hover{transform:translateY(-4px);border-color:var(--gold-200);box-shadow:var(--shadow-sm)}
.rel-col .fa-solid{font-size:20px;color:var(--gold-500)}
.rel-col b{font-size:15px;font-weight:800;color:var(--navy-900)}
.rel-col span{display:block;font-size:12px;color:var(--ink-400);margin-top:3px}

@media(max-width:1024px){
  .col-intro{grid-template-columns:1fr;gap:32px}
  .sub-grid,.sub-grid-2,.rel-col{grid-template-columns:repeat(2,1fr)}
  .col-adv{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .sub-grid,.sub-grid-2,.rel-col,.col-adv{grid-template-columns:1fr}
}