/* ================================
   VBS Core Modules 
================================ */
.coremods-section{
  margin:80px auto 88px;
  padding:0 24px;
}

.coremods-shell{
  max-width:1180px;
  margin:0 auto;
}

.coremods-header{
  text-align:center;
  margin-bottom:26px;
}
.coremods-eyebrow{
  font-size:.78rem;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:#9aa4c6;
}
.coremods-title{
  font-size:2.1rem;
  font-weight:800;
  margin:10px 0 6px;
  color:#13162c;
}
.coremods-sub{
  max-width:620px;
  margin:0 auto;
  font-size:.95rem;
  line-height:1.7;
  color:#6b7292;
}

/* 外層玻璃板 */
.coremods-board{
  margin-top:26px;
  position:relative;
  border-radius:32px;
  padding:26px 30px 26px;
  background:
    radial-gradient(circle at 0 0,rgba(255,255,255,.92),rgba(249,250,255,.98)),
    radial-gradient(circle at 100% 100%,rgba(219,234,254,.9),rgba(244,244,255,.98));
  border:1px solid rgba(199,210,254,.9);
  box-shadow:0 26px 56px rgba(148,163,184,.45);
  backdrop-filter:blur(18px);
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  column-gap:26px;
  row-gap:20px;
  overflow:hidden;
}
.coremods-board::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(circle at 1px 1px,rgba(180,198,255,.4) 1px,transparent 0);
  background-size:18px 18px;
  opacity:.18;
  pointer-events:none;
}

/* 單一卡片 */
.coremods-card{
  position:relative;
  z-index:1;
  border-radius:24px;
  padding:20px 22px 18px;
  background:linear-gradient(145deg,rgba(255,255,255,.96),rgba(245,248,255,.98));
  border:1px solid rgba(209,213,255,1);
  box-shadow:0 18px 34px rgba(148,163,184,.35);
  display:flex;
  flex-direction:column;
  gap:14px;
  transition:
    transform .2s cubic-bezier(.22,.61,.36,1),
    box-shadow .2s cubic-bezier(.22,.61,.36,1),
    border-color .18s ease,
    background .18s ease;
  cursor:pointer;
}
.coremods-card::after{
  content:"";
  position:absolute;
  inset:-30%;
  background:radial-gradient(circle at 0 0,rgba(255,255,255,.75),transparent 65%);
  opacity:.5;
  mix-blend-mode:screen;
  pointer-events:none;
}
.coremods-card-head{
  display:flex;
  align-items:center;
  gap:12px;
}
.coremods-card-title-wrap{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.coremods-card-title{
  font-size:1.1rem;
  font-weight:750;
  color:#111827;
}
.coremods-tag{
  align-self:flex-start;
  font-size:.78rem;
  border-radius:999px;
  padding:3px 10px;
  background:rgba(15,23,42,.04);
  border:1px solid rgba(203,213,225,.9);
  color:#64748b;
}
.coremods-card-lead{
  font-size:.93rem;
  line-height:1.7;
  color:#4b4f6d;
}

/* icon */
.coremods-icon-wrap{
  width:48px;
  height:48px;
  border-radius:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  overflow:hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,.9),
    0 16px 30px rgba(129,140,248,.75);
}
.coremods-icon-wrap::after{
  content:"";
  position:absolute;
  inset:-40%;
  background:radial-gradient(circle at 0 0,rgba(255,255,255,.92),transparent 60%);
  opacity:.8;
}
.coremods-icon--transport{
  background:linear-gradient(145deg,#4f46e5,#22c1c3);
}
.coremods-icon--governance{
  background:linear-gradient(145deg,#0ea5e9,#22c55e);
}
.coremods-icon-signal,
.coremods-icon-grid{
  position:relative;
  z-index:1;
  width:26px;
  height:26px;
  border-radius:10px;
  border:2px solid rgba(255,255,255,.85);
}
.coremods-icon-signal{
  border-radius:999px;
  box-shadow:0 0 0 2px rgba(15,23,42,.45);
}
.coremods-icon-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:3px;
  padding:4px;
  box-shadow:0 0 0 2px rgba(15,23,42,.35);
}
.coremods-icon-grid::before,
.coremods-icon-grid::after{
  content:"";
  background:rgba(255,255,255,.85);
  border-radius:4px;
}
.coremods-icon-grid span{
  display:block;
}

/* 條列 */
.coremods-list{
  list-style:none;
  padding:0;
  margin:4px 0 0;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.coremods-item{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding:8px 10px;
  border-radius:14px;
  transition:
    background .16s ease,
    transform .16s ease,
    box-shadow .16s ease;
}
.coremods-item:hover{
  background:rgba(226,232,255,.8);
  transform:translateX(4px);
}
.coremods-item-body{
  flex:1 1 auto;
}
.coremods-item-title{
  font-size:.9rem;
  font-weight:650;
  color:#111827;
}
.coremods-item-desc{
  font-size:.8rem;
  margin-top:2px;
  color:#6b7280;
}

/* 左邊的小圓點 */
.coremods-bullet{
  flex-shrink:0;
  margin-top:3px;
  width:16px;
  height:16px;
  border-radius:999px;
  background:linear-gradient(145deg,#22c55e,#16a34a);
  box-shadow:
    0 0 0 1px rgba(240,253,250,1),
    0 0 0 3px rgba(187,247,208,.7),
    0 0 14px rgba(16,185,129,.9);
  position:relative;
}
.coremods-bullet::after{
  content:"";
  position:absolute;
  inset:4px;
  border-radius:inherit;
  border:2px solid rgba(255,255,255,.95);
}

/* 高亮狀態 */
.coremods-item.is-highlight{
  background:rgba(219,234,254,.95);
  transform:translateX(4px);
  box-shadow:0 14px 24px rgba(148,163,184,.45);
}

/* 高亮狀態 */
.coremods-card.is-active{
  transform:translateY(-4px);
  border-color:#3b82f6;
  box-shadow:0 26px 46px rgba(59,130,246,.55);
}
.coremods-card.is-active::before{
  content:"";
  position:absolute;
  left:18px;
  right:18px;
  top:-1px;
  height:4px;
  border-radius:999px;
  background:linear-gradient(90deg,#38bdf8,#4ade80);
}

/* 底部提示 */
.coremods-tip{
  margin-top:12px;
  font-size:.8rem;
  color:#9ca3af;
  text-align:right;
}

/* RWD */
@media (max-width: 960px){
  .coremods-board{
    grid-template-columns:1fr;
    padding:22px 18px;
  }
  .coremods-section{
    margin:60px auto 70px;
  }
  .coremods-tip{
    text-align:left;
  }
}
@media (max-width: 640px){
  .coremods-title{
    font-size:1.7rem;
  }
}


/* ================================
   Core Modules ICONS
================================ */

/* 外框 icon 底 */
.coremods-icon-wrap{
  width:56px;
  height:56px;
  border-radius:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:
    0 10px 24px rgba(176, 215, 249, 0.45),
    0 0 0 1px rgba(250, 250, 250, 0.28);
}

/* 左：系統傳輸架構 */
.coremods-icon--transport{
  background:#4f63ff;
  color:#ffffff;     
}

/* 右：系統管理功能 */
.coremods-icon--governance{
  background:#7de7ff;
  color:#0366e7; 
}

.coremods-icon-svg{
  width:30px;
  height:30px;
}

/* WIFI / 天線 icon 線條樣式 */
.coremods-icon-svg--signal path,
.coremods-icon-svg--signal line{
  stroke:#ffffff;
  fill:none;
  stroke-width:2.6;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.coremods-icon-svg--signal circle{
  fill:#ffffff;
}

/* 三格＋加號 icon */
.coremods-icon-svg--grid rect{
  fill:#0f172a;            /* 深藍接近黑色 */
}
.coremods-icon-svg--grid .coremods-plus{
  fill:#0f172a;
}