/* PC 端「图文入口卡」（2026-10-07 站长要求：栏目页 / 详情页右上加图文链接）
   图片上直接压文字（左深右透渐变），卡下副标题 + 进入箭头；宽度跟随所在栏；
   一律上下排版：图在上，副标题 + 进入在下。站长 2026-10-07 明确「不要左右两列」。 */
.msn-sidecard{display:block;border-radius:14px;overflow:hidden;text-decoration:none;
  border:1px solid var(--msn-line,#1E4C76);background:var(--msn-surface,rgba(255,255,255,.04));
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.msn-sidecard:hover{transform:translateY(-2px);border-color:rgba(146,190,232,.6);
  box-shadow:0 12px 26px rgba(3,16,31,.34)}
.msn-sidecard-img{position:relative;display:block;aspect-ratio:760/420;overflow:hidden}
.msn-sidecard-img>img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.msn-sidecard:hover .msn-sidecard-img>img{transform:scale(1.04)}
.msn-sidecard-tx{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;
  gap:3px;padding:12px 13px;
  background:linear-gradient(90deg,rgba(6,18,34,.88) 0%,rgba(6,18,34,.62) 45%,rgba(6,18,34,.10) 100%)}
.msn-sidecard-tx i{font-style:normal;font-size:11.5px;font-weight:700;letter-spacing:.06em;
  color:#8FC4EC;text-shadow:0 1px 3px rgba(0,0,0,.6)}
.msn-sidecard-tx b{font-size:15.5px;font-weight:800;line-height:1.3;color:#fff;
  text-shadow:0 1px 4px rgba(0,0,0,.66)}
.msn-sidecard-sub{display:block;padding:9px 13px 0;font-size:12.5px;line-height:1.55;
  font-weight:600;color:var(--msn-body,#BEDBF2)}
.msn-sidecard-go{display:flex;align-items:center;gap:4px;padding:7px 13px 11px;
  font-size:12.5px;font-weight:700;color:#CFE8FB}
.msn-sidecard:hover .msn-sidecard-go{color:#fff}
.msn-sidecard-go svg{transition:transform .18s ease}
.msn-sidecard:hover .msn-sidecard-go svg{transform:translateX(3px)}

/* 横排版：图左文右，用于产品列表页主网格上方（高度约 128px，不挤压产品卡） */
/* 通栏/横排（--wide）规则已删除：站长 2026-10-07 要求「不要左右两列」。
   本页卡片一律「图在上、文字在下」的上下排版（.msn-sidecard 基础规则已满足）。 */

/* ============================================================
   侧栏计算器广告 .msn-calcad（2026-10-11）
   ------------------------------------------------------------
   站长要求：把侧栏原「液压文库 / 技术资料与选型手册」入口卡，
   换成「液压缸选型智能计算器」广告图文链接（指向 cylinder-calc-promo.html）。
   视觉沿用产品页页头同款 SVG 动画（免位图，随宽度自适应）；
   侧栏宽仅 340px，故排版为「图在上 + 文案在下」，与本栏卡片节奏一致。
   颜色取自页头广告：红 #C81E2D / 深蓝 #0d2b4a / 文字 #F0F7FF。
   ============================================================ */
.msn-calcad{display:block;border-radius:14px;overflow:hidden;text-decoration:none;
  border:1px solid rgba(232,74,88,.55);
  background:linear-gradient(135deg,rgba(200,30,45,.20),rgba(23,62,101,.66) 52%,rgba(11,37,64,.82));
  box-shadow:0 20px 40px -30px rgba(0,0,0,1),inset 0 1px 0 rgba(255,255,255,.10);
  transition:transform .28s cubic-bezier(.4,0,.2,1),border-color .28s ease,box-shadow .28s ease}
.msn-calcad:hover{transform:translateY(-3px);border-color:#E84A58;
  box-shadow:0 26px 46px -30px rgba(0,0,0,1),0 0 0 1px rgba(232,74,88,.24)}
/* 视觉区：图在上 */
.msn-calcad-visual{display:block;min-width:0}
.msn-calcad-vport{display:block;position:relative;width:100%;overflow:hidden;
  background:radial-gradient(120% 120% at 30% 20%,#0d2b4a,#061626 72%);
  box-shadow:inset 0 0 26px rgba(77,163,255,.16)}
.msn-calcad-vport svg{display:block;width:100%;height:auto}
/* 三套动画（与页头广告同参，保证观感一致） */
.msn-calcad-vport .phad-rod{animation:calcadRod 7.5s cubic-bezier(.45,0,.3,1) infinite}
.msn-calcad-vport .phad-oil{stroke-dasharray:6 5;animation:calcadOil 1.3s linear infinite}
.msn-calcad-vport .phad-pulse{animation:calcadPulse 2.6s ease-in-out infinite}
.msn-calcad-vport .phad-glint{animation:calcadGlint 4.2s ease-in-out infinite}
/* 文案区：在下方 */
.msn-calcad-body{display:flex;flex-direction:column;gap:.3rem;min-width:0;padding:.72rem .8rem .8rem}
.msn-calcad-tag{align-self:flex-start;padding:.16rem .5rem;border-radius:6px;
  background:#C81E2D;color:#fff;font-size:11.4px;font-weight:800;letter-spacing:.03em}
.msn-calcad-title{font-size:17.5px;line-height:1.28;font-weight:900;color:#fff;letter-spacing:-.005em;
  text-shadow:0 2px 10px rgba(0,0,0,.42)}
.msn-calcad-line{font-size:12.3px;line-height:1.58;color:rgba(240,247,255,.96)}
.msn-calcad-btn{align-self:flex-start;margin-top:.4rem;padding:.44rem .95rem;border-radius:9px;
  background:#fff;color:#A61521 !important;font-size:13.2px;font-weight:900;letter-spacing:.01em;
  box-shadow:0 10px 20px -13px rgba(0,0,0,.95);transition:transform .2s ease}
.msn-calcad:hover .msn-calcad-btn{transform:translateX(3px)}
@keyframes calcadRod{0%,12%{transform:translateX(0)}52%,64%{transform:translateX(58px)}100%{transform:translateX(0)}}
@keyframes calcadOil{to{stroke-dashoffset:-44}}
@keyframes calcadPulse{0%,100%{opacity:.45}50%{opacity:1}}
@keyframes calcadGlint{0%{transform:translateX(-40px)}60%,100%{transform:translateX(210px)}}
@media (prefers-reduced-motion: reduce){
  .msn-calcad-vport .phad-rod,.msn-calcad-vport .phad-oil,
  .msn-calcad-vport .phad-pulse,.msn-calcad-vport .phad-glint{animation:none !important}
}