/**
 * bx.html 内页：百校列表。首屏结构与 cent-sch 共用，本文件仅 bx-shell 及以下。
 */

/* ---------- 白底主容器（压住首屏底部） ---------- */
.bx-shell {
  margin-top: calc(80vh / 10.8);
}

.bx-main {
  border-radius: 12px;
  padding: clamp(18px, 3vw, 28px) clamp(16px, 3vw, 20px) clamp(28px, 4vw, 40px);
}

/* ---------- 学校网格：5 列 ---------- */
.bx-school-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(50px, 1.5vw, 18px) clamp(12px, 1.5vw, 18px);
}

/* 默认：实心蓝、文案居中；箭头在 DOM 中但不可见 */
.bx-school-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: clamp(44px, 5vw, 52px);
  padding: 10px clamp(12px, 1.5vw, 16px);
  border-radius: 8px;
  background-image: linear-gradient(164deg, 
		#54a5ff 30%, 
		#086ae5 100%), 
	linear-gradient(-85deg, 
		#7a80fb 0%, 
		#2bc4fc 49%);
	background-blend-mode: normal, 
		normal;
  color: #fff;
  font-size: clamp(15px, 1.25vw, 18px);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(25, 118, 210, 0.25);
  transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.2s ease, padding 0.25s ease;
}

.bx-school-btn__label {
  text-align: center;
}

/* 箭头：xs-icon.png，默认淡出；悬停/键盘聚焦时与渐变高亮一并出现 */
.bx-school-btn__arrow {
  position: absolute;
  right: clamp(10px, 1.4vw, 16px);
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.bx-school-btn__arrow-img {
  display: block;
  width: clamp(14px, 1.5vw, 20px);
  height: auto;
  object-fit: contain;
}

.bx-school-btn:hover,
.bx-school-btn:focus-visible {
  color: #fff;
  justify-content: left;
  padding-right: clamp(32px, 3.5vw, 42px);
  background-image: linear-gradient(-85deg, 
		#7a80fb 0%, 
		#2bc4fc 49%);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(30, 136, 229, 0.4);
}

.bx-school-btn:hover .bx-school-btn__arrow,
.bx-school-btn:focus-visible .bx-school-btn__arrow {
  opacity: 1;
}

@media (max-width: 992px) {
  .bx-school-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .bx-school-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}