/* ==========================================================================
   ji 官网主题 · 通用原子类（与官方 default 主题保持一致，便于迁移）
   ========================================================================== */

/* ---------------- 定位布局 ---------------- */
.position-fixed { position: fixed; }
.position-sticky { position: sticky; }
.position-relative { position: relative; }
.position-absolute { position: absolute; }
.fl { float: left; }
.fr { float: right; }
.tl { text-align: left; }
.tc { text-align: center; }
.tr { text-align: right; }

/* ---------------- 弹性盒子 ---------------- */
.fboxRow { display: flex; flex-direction: row; }
.fboxCol { display: flex; flex-direction: column; }
.fboxWrap { display: flex; flex-wrap: wrap; }
.flex1 { flex: 1; }
.flex2 { flex: 2; }
.flex3 { flex: 3; }
.flex4 { flex: 4; }
.flex5 { flex: 5; }
.flex6 { flex: 6; }

.Xstart { justify-content: flex-start; }
.Xcenter { justify-content: center; }
.Xend { justify-content: flex-end; }
.Xbetween { justify-content: space-between; }
.Xaround { justify-content: space-around; }

.Ystart { align-items: flex-start; }
.Ycenter { align-items: center; }
.Yend { align-items: flex-end; }
.Ybaseline { align-items: baseline; }
.Ystretch { align-items: stretch; }

/* ---------------- margin ---------------- */
.mt-0 { margin-top: 0px; } .mt-10 { margin-top: 10px; } .mt-15 { margin-top: 15px; } .mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; } .mt-30 { margin-top: 30px; } .mt-40 { margin-top: 40px; } .mt-50 { margin-top: 50px; }
.ml-10 { margin-left: 10px; } .ml-15 { margin-left: 15px; } .ml-20 { margin-left: 20px; } .ml-30 { margin-left: 30px; }
.mr-10 { margin-right: 10px; } .mr-15 { margin-right: 15px; } .mr-20 { margin-right: 20px; } .mr-30 { margin-right: 30px; }
.mb-10 { margin-bottom: 10px; } .mb-15 { margin-bottom: 15px; } .mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; } .mb-40 { margin-bottom: 40px; } .mb-50 { margin-bottom: 50px; }

/* ---------------- padding ---------------- */
.pt-10 { padding-top: 10px; } .pt-20 { padding-top: 20px; } .pt-30 { padding-top: 30px; } .pt-40 { padding-top: 40px; }
.pl-10 { padding-left: 10px; } .pl-20 { padding-left: 20px; } .pl-30 { padding-left: 30px; }
.pr-10 { padding-right: 10px; } .pr-20 { padding-right: 20px; } .pr-30 { padding-right: 30px; }
.pb-10 { padding-bottom: 10px; } .pb-20 { padding-bottom: 20px; } .pb-30 { padding-bottom: 30px; } .pb-40 { padding-bottom: 40px; }

/* ---------------- 字号 ---------------- */
.font12 { font-size: 12px; } .font13 { font-size: 13px; } .font14 { font-size: 14px; }
.font15 { font-size: 15px; } .font16 { font-size: 16px; } .font17 { font-size: 17px; }
.font18 { font-size: 18px; } .font19 { font-size: 19px; } .font20 { font-size: 20px; }
.font22 { font-size: 22px; } .font24 { font-size: 24px; } .font26 { font-size: 26px; }
.font28 { font-size: 28px; } .font30 { font-size: 30px; } .font32 { font-size: 32px; }
.font36 { font-size: 36px; } .font40 { font-size: 40px; } .font48 { font-size: 48px; }

/* ---------------- 文字 ---------------- */
.font-ell1 { overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; }
.font-ell2 { overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.font-ell3 { overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; }
.font-el1 { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.font-left { text-align: left; }
.font-center { text-align: center; }
.font-right { text-align: right; }
.font-weight { font-weight: 600; }
.font-line-1o8 { line-height: 1.8; }

.font-theme { color: var(--brand-600); }
.font-red { color: #ea5b2f; }
.font-orange { color: #f37b1d; }
.font-green { color: #16a34a; }
.font-blue { color: var(--brand-600); }
.font-grey { color: rgba(11, 18, 38, .45); }
.font-gray { color: #8a94ad; }
.font-black { color: var(--ink-900); }
.font-white { color: #fff; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }
.over-hide { overflow: hidden; }
.line-wrap { word-break: break-all; white-space: pre-line; }

/* ---------------- 通用容器 ---------------- */
.section-content {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  box-sizing: border-box;
}

.section {
  padding: 88px 0;
  position: relative;
}

.section-bg {
  background: linear-gradient(180deg, #f6f9ff 0%, #eef4ff 100%);
}

/* 区块标题 */
.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title h2 {
  font-size: 32px;
  line-height: 1.35;
  color: var(--ink-900);
  letter-spacing: -.4px;
}

.section-title .section-desc {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-500);
}

.section-title::after {
  content: "";
  display: block;
  width: 56px;
  height: 4px;
  border-radius: 4px;
  margin: 18px auto 0;
  background: var(--accent-grad);
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .section-content { padding: 0 18px; }
  .section-title { margin-bottom: 32px; }
  .section-title h2 { font-size: 24px; }
  .section-title .section-desc { font-size: 14px; }
}