/* ==========================================================================
   大理蔚蓝科技 · 官网模板  pages.css
   页面专有样式：首页 / 产品 / 报价 / 算价器 / 教程 / 字典 / 案例 / 内容
   ========================================================================== */

/* ============================ 首页：多端矩阵 ============================ */
.terminal-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gap); }
.terminal-card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  padding: 22px;
  text-align: center;
  transition: all var(--t);
}
.terminal-card:hover { transform: translateY(-4px); box-shadow: var(--sh-3); border-color: #c9d9f5; }
.terminal-card .ph { width: 108px; margin: 0 auto 16px; }
.terminal-card h5 { margin-bottom: 6px; }
.terminal-card p { font-size: 13.5px; color: var(--c-muted); }
@media (max-width: 1023px) { .terminal-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 575px) { .terminal-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; } .terminal-card { padding: 14px; } }

.device-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.device-item { text-align: center; }
.device-item .ph { margin: 0 auto 12px; box-shadow: var(--sh-2); background: #fff; border-style: solid; }
.device-item h6 { font-size: 14px; font-weight: 600; color: var(--c-ink); margin-bottom: 4px; }
.device-item span { font-size: 12.5px; color: var(--c-sub); }
@media (max-width: 1023px) { .device-row { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 575px) { .device-row { grid-template-columns: repeat(3, 1fr); gap: 12px; } }

/* ============================ 首页：业务流程 / 层级图 ============================ */
.layer-stack { display: grid; gap: 14px; }
.layer {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  align-items: center;
  min-height: 88px;
  padding: 20px 24px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-left: 4px solid var(--c-primary);
  border-radius: var(--r);
}
.layer__name { font-weight: 600; color: var(--c-ink); font-size: 16px; }
.layer__name small { display: block; font-weight: 400; font-size: 12.5px; color: var(--c-sub); margin-top: 2px; }
.layer__tags { display: flex; flex-wrap: wrap; align-content: center; gap: 8px; }
/* 左边条颜色由语义类名决定（与标签配色一致），不依赖层序号 */
.layer--primary { border-left-color: var(--c-primary); }
.layer--primary-2 { border-left-color: var(--c-primary-2); }
.layer--cyan { border-left-color: var(--c-cyan); }
.layer--green { border-left-color: var(--c-green); }
.layer--orange { border-left-color: var(--c-orange); }
.layer--purple { border-left-color: var(--c-purple); }
.layer--pink { border-left-color: var(--c-pink); }
.layer--rose { border-left-color: var(--c-rose); }
.layer--slate { border-left-color: var(--c-muted); }
@media (max-width: 767px) { .layer { grid-template-columns: 1fr; gap: 10px; } }

/* ============================ 报价：套餐卡 ============================ */
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; align-items: start; }
.pricing-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: all var(--t);
}
.pricing-card:hover { box-shadow: var(--sh-3); transform: translateY(-4px); }
.pricing-card--featured {
  border: 2px solid var(--c-primary-2);
  box-shadow: var(--sh-3);
}
.pricing-card__flag {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--grad-main); color: #fff;
  font-size: 12px; font-weight: 600; padding: 4px 14px; border-radius: var(--r-pill);
  white-space: nowrap;
}
.pricing-card h4 { font-size: 20px; margin-bottom: 6px; }
.pricing-card__for { font-size: 13.5px; color: var(--c-sub); min-height: 44px; }
.pricing-card__price { margin: 18px 0 4px; display: flex; align-items: baseline; gap: 6px; }
.pricing-card__price b { font-size: 34px; font-weight: 700; color: var(--c-primary); line-height: 1; }
.pricing-card__price span { font-size: 13px; color: var(--c-sub); }
.pricing-card__unit { font-size: 12.5px; color: var(--c-sub); margin-bottom: 20px; }
.pricing-card__list { display: grid; gap: 10px; margin-bottom: 24px; font-size: 14px; }
.pricing-card__list li { display: flex; gap: 8px; color: var(--c-text); }
.pricing-card__list svg { width: 16px; height: 16px; flex: none; margin-top: 4px; color: var(--c-green); }
.pricing-card__foot { margin-top: auto; }
@media (max-width: 1023px) { .pricing-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 575px) { .pricing-grid { grid-template-columns: 1fr; } }

/* ============================ 报价：算价器 ============================ */
.quote-layout { display: grid; grid-template-columns: 1fr 360px; gap: 32px; align-items: start; }
.quote-step { margin-bottom: 36px; scroll-margin-top: 100px; }
.quote-step__head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.quote-step__no {
  width: 30px; height: 30px; flex: none;
  border-radius: 50%; background: var(--grad-main); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700;
}
.quote-step__head h4 { font-size: 19px; }
.quote-step__head .t-sub { font-size: 13px; }

.opt-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.opt-grid--2 { grid-template-columns: repeat(2, 1fr); }
.opt {
  position: relative;
  display: flex;
  gap: 12px;
  padding: 18px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  cursor: pointer;
  transition: all var(--t);
}
.opt:hover { border-color: #b9cdf3; }
.opt.is-checked { border-color: var(--c-primary-2); background: #f7faff; box-shadow: 0 0 0 3px rgba(26, 86, 219, .08); }
.opt.is-locked { opacity: .6; cursor: not-allowed; }
.opt input { position: absolute; opacity: 0; pointer-events: none; }
.opt__box {
  width: 20px; height: 20px; flex: none; margin-top: 2px;
  border: 2px solid var(--c-line-2); border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--t);
}
.opt.is-checked .opt__box { background: var(--c-primary-2); border-color: var(--c-primary-2); }
.opt__box::after {
  content: ""; width: 9px; height: 5px;
  border-left: 2px solid #fff; border-bottom: 2px solid #fff;
  transform: rotate(-45deg) scale(0); transition: transform var(--t);
}
.opt.is-checked .opt__box::after { transform: rotate(-45deg) scale(1); }
.opt--radio .opt__box, .opt--radio.is-checked .opt__box { border-radius: 50%; }
.opt__main { flex: 1; min-width: 0; }
.opt__title { font-size: 15px; font-weight: 600; color: var(--c-ink); display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.opt__desc { font-size: 13px; color: var(--c-muted); margin-top: 4px; }
.opt__price { font-size: 14px; font-weight: 600; color: var(--c-primary); margin-top: 8px; }
.opt__price em { font-style: normal; font-size: 12px; color: var(--c-sub); font-weight: 400; }
@media (max-width: 1023px) { .opt-grid, .opt-grid--2 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 575px) { .opt-grid, .opt-grid--2 { grid-template-columns: 1fr; } }

.summary {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  padding: 24px;
  box-shadow: var(--sh-1);
}
.summary h4 { font-size: 18px; margin-bottom: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--c-line); }
.summary__row { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 8px 0; font-size: 14px; }
.summary__row span { color: var(--c-muted); }
.summary__row b { color: var(--c-ink); font-weight: 600; white-space: nowrap; }
.summary__row--sub { padding-left: 12px; font-size: 13px; }
.summary__row--sub span { color: var(--c-sub); }
.summary__row--minus b { color: var(--c-green); }
.summary__total {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-top: 14px; padding-top: 16px; border-top: 1px dashed var(--c-line-2);
}
.summary__total span { font-size: 14px; color: var(--c-muted); }
.summary__total b { font-size: 30px; font-weight: 700; color: var(--c-primary); line-height: 1.1; }
.summary__note { font-size: 12px; color: var(--c-sub); margin-top: 10px; line-height: 1.6; }
.summary .btn { margin-top: 18px; }
.summary__extra { margin-top: 14px; display: grid; gap: 8px; }
@media (max-width: 1023px) {
  .quote-layout { grid-template-columns: 1fr; }
  .summary { position: static; }
}

/* ============================ 教程 ============================ */
.tutorial-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  overflow: hidden;
  transition: all var(--t);
}
.tutorial-card:hover { transform: translateY(-4px); box-shadow: var(--sh-3); border-color: #c9d9f5; }
.tutorial-card .ph { border-radius: 0; border: 0; border-bottom: 1px solid var(--c-line); }
.tutorial-card__body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.tutorial-card__meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.tutorial-card h5 { font-size: 16.5px; margin-bottom: 8px; line-height: 1.5; }
.tutorial-card p { font-size: 13.5px; color: var(--c-muted); margin-bottom: 14px; }
.tutorial-card__foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; font-size: 12.5px; color: var(--c-sub); }

.tutorial-layout { display: grid; grid-template-columns: 240px 1fr 240px; gap: 40px; align-items: start; }
@media (max-width: 1279px) { .tutorial-layout { grid-template-columns: 240px 1fr; } .tutorial-layout__aside-right { display: none; } }
@media (max-width: 1023px) { .tutorial-layout { grid-template-columns: 1fr; gap: 24px; } }

.doc-body { font-size: 16px; line-height: 1.9; color: var(--c-text); }
.doc-body h2 { font-size: 26px; margin: 44px 0 16px; padding-top: 12px; }
.doc-body h3 { font-size: 20px; margin: 32px 0 12px; }
.doc-body h4 { font-size: 17px; margin: 24px 0 10px; }
.doc-body p { margin-bottom: 16px; }
.doc-body ul, .doc-body ol { display: grid; gap: 8px; margin: 0 0 18px; padding-left: 22px; }
.doc-body ul { list-style: disc; }
.doc-body ol { list-style: decimal; }
.doc-body li { padding-left: 2px; }
.doc-body img { border-radius: var(--r); margin: 18px 0; }
.doc-body strong { color: var(--c-ink); }

.doc-step { display: grid; grid-template-columns: 44px 1fr; gap: 18px; margin-bottom: 26px; }
.doc-step__no {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--c-primary-3); color: var(--c-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px;
}
.doc-step h4 { margin-bottom: 8px; }

.code-block {
  position: relative;
  margin: 18px 0;
  padding: 16px 18px;
  background: #0f172a;
  border-radius: var(--r-sm);
  overflow-x: auto;
}
.code-block code { color: #e2e8f0; font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; font-size: 13.5px; line-height: 1.7; white-space: pre; }
.code-block__copy {
  position: absolute; top: 10px; right: 10px;
  padding: 4px 10px; border-radius: 6px;
  background: rgba(255, 255, 255, .12); color: #cbd5e1; font-size: 12px;
}
.code-block__copy:hover { background: rgba(255, 255, 255, .22); color: #fff; }

.video-box { position: relative; border-radius: var(--r); overflow: hidden; background: #0f172a; }
.video-box .ph { border: 0; border-radius: 0; background: rgba(255, 255, 255, .04); }
.video-box__play {
  position: absolute; inset: 0; margin: auto;
  width: 68px; height: 68px; border-radius: 50%;
  background: rgba(255, 255, 255, .92);
  display: flex; align-items: center; justify-content: center;
  color: var(--c-primary); box-shadow: var(--sh-3);
}
.video-box__play svg { width: 28px; height: 28px; margin-left: 4px; }

/* 学习进度条 */
.progress {
  height: 8px;
  background: var(--c-line);
  border-radius: var(--r-pill);
  overflow: hidden;
}
.progress > div {
  height: 100%;
  width: 0;
  background: var(--grad-main);
  border-radius: var(--r-pill);
  transition: width .4s var(--ease);
}

/* 系列课程条目 */
.lesson {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  margin-bottom: 10px;
  transition: all var(--t);
}
.lesson:hover { border-color: #c9d9f5; box-shadow: var(--sh-1); }
.lesson__no {
  width: 28px; height: 28px; flex: none;
  border-radius: 50%; background: var(--c-bg-2); color: var(--c-muted);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600;
}
.lesson__body { flex: 1; min-width: 0; }
.lesson__body h5 { font-size: 16px; margin-bottom: 4px; }
.lesson__body p { font-size: 13.5px; color: var(--c-muted); margin: 0; }
.lesson__meta { font-size: 12.5px; color: var(--c-sub); margin-top: 6px; }
@media (max-width: 575px) { .lesson { padding: 14px; } }

.toc-list { border-left: 2px solid var(--c-line); }
.toc-list a { display: block; padding: 8px 14px; font-size: 14px; color: var(--c-muted); border-left: 2px solid transparent; margin-left: -2px; }
.toc-list a:hover { color: var(--c-primary-2); }
.toc-list a.is-active { color: var(--c-primary); font-weight: 600; border-left-color: var(--c-primary); }

.path-card { background: var(--c-bg); border: 1px solid var(--c-line); border-radius: var(--r); padding: 24px; }
.path-card ol { display: grid; gap: 10px; margin: 14px 0 0; padding-left: 20px; list-style: decimal; font-size: 14.5px; }

/* ============================ 字典 ============================ */
.glossary-group { margin-bottom: 40px; }
.glossary-group__letter {
  font-size: 22px; font-weight: 700; color: var(--c-primary);
  padding-bottom: 10px; border-bottom: 2px solid var(--c-line); margin-bottom: 18px;
}
.term-item {
  padding: 18px 20px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  margin-bottom: 12px;
  transition: all var(--t);
}
.term-item:hover { border-color: #c9d9f5; box-shadow: var(--sh-1); }
.term-item__head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px; }
.term-item__name { font-size: 17px; font-weight: 700; color: var(--c-ink); }
.term-item__en { font-size: 13px; color: var(--c-sub); font-family: Consolas, monospace; }
.term-item__body { margin-top: 8px; font-size: 14.5px; color: var(--c-text); }
.term-item__rel { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 13px; color: var(--c-sub); }
.term-item__rel a { font-size: 13px; }

.dict-table td code {
  font-family: Consolas, monospace;
  background: var(--c-bg-2);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--c-primary);
}
@media (max-width: 767px) {
  .dict-table, .dict-table tbody, .dict-table tr, .dict-table td { display: block; width: 100%; }
  .dict-table thead { display: none; }
  .dict-table tr { border: 1px solid var(--c-line); border-radius: var(--r); margin-bottom: 12px; padding: 12px; }
  .dict-table td { border: 0; padding: 6px 0; }
  .dict-table td::before { content: attr(data-label) "："; color: var(--c-sub); font-size: 12.5px; }
}

/* ============================ 案例 / 内容 ============================ */
.case-card {
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  overflow: hidden;
  transition: all var(--t);
}
.case-card:hover { transform: translateY(-4px); box-shadow: var(--sh-3); border-color: #c9d9f5; }
.case-card .ph { border-radius: 0; border: 0; border-bottom: 1px solid var(--c-line); }
.case-card__body { padding: 22px; }
.case-card__logo { width: 88px; margin-bottom: 14px; }
.case-card h5 { font-size: 18px; margin-bottom: 8px; }
.case-card p { font-size: 14px; color: var(--c-muted); }
.case-card__metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--c-line); }
.case-card__metrics b { display: block; font-size: 20px; color: var(--c-primary); line-height: 1.2; }
.case-card__metrics span { font-size: 12px; color: var(--c-sub); }

.post-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
  overflow: hidden;
  transition: all var(--t);
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--sh-3); }
.post-card .ph { border-radius: 0; border: 0; }
.post-card__body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.post-card__meta { font-size: 12.5px; color: var(--c-sub); margin-bottom: 8px; }
.post-card h5 { font-size: 17px; line-height: 1.5; margin-bottom: 8px; }
.post-card p { font-size: 14px; color: var(--c-muted); }
.post-card__foot { margin-top: auto; padding-top: 14px; font-size: 13px; }

.post-body { font-size: 16.5px; line-height: 1.9; }
.post-body h3 { font-size: 22px; margin: 36px 0 14px; }
.post-body p { margin-bottom: 18px; }
.post-body .ph { margin: 24px 0; }
.post-quote {
  margin: 24px 0;
  padding: 18px 22px;
  border-left: 4px solid var(--c-primary-2);
  background: var(--c-bg);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: 15.5px;
  color: var(--c-text);
}

/* ============================ 关于我们 / 联系 ============================ */
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px; width: 2px; background: var(--c-line); }
.timeline__item { position: relative; padding-bottom: 30px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: ""; position: absolute; left: -28px; top: 7px;
  width: 14px; height: 14px; border-radius: 50%;
  background: #fff; border: 3px solid var(--c-primary-2);
}
.timeline__year { font-size: 15px; font-weight: 700; color: var(--c-primary); }
.timeline__item h5 { font-size: 17px; margin: 4px 0 6px; }
.timeline__item p { font-size: 14.5px; color: var(--c-muted); }

.team-card { text-align: center; padding: 24px 18px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--r); }
.team-card .ph { width: 96px; height: 96px; border-radius: 50%; margin: 0 auto 16px; }
.team-card h5 { font-size: 17px; }
.team-card span { font-size: 13.5px; color: var(--c-sub); }

.contact-card {
  display: flex; gap: 16px;
  padding: 22px;
  background: #fff;
  border: 1px solid var(--c-line);
  border-radius: var(--r);
}
.contact-card__icon { width: 46px; height: 46px; flex: none; border-radius: 12px; background: var(--c-primary-3); color: var(--c-primary-2); display: flex; align-items: center; justify-content: center; }
.contact-card__icon svg { width: 22px; height: 22px; }
.contact-card h5 { font-size: 15px; margin-bottom: 4px; }
.contact-card p { font-size: 14.5px; color: var(--c-text); margin: 0; }

/* ============================ 下载中心 ============================ */
.dl-card { display: flex; gap: 18px; padding: 22px; background: #fff; border: 1px solid var(--c-line); border-radius: var(--r); transition: all var(--t); }
.dl-card:hover { box-shadow: var(--sh-2); border-color: #c9d9f5; }
.dl-card .ph { width: 64px; flex: none; }
.dl-card__body { flex: 1; min-width: 0; }
.dl-card h5 { font-size: 16.5px; margin-bottom: 6px; }
.dl-card p { font-size: 13.5px; color: var(--c-muted); }
.dl-card__meta { font-size: 12.5px; color: var(--c-sub); margin-top: 8px; display: flex; flex-wrap: wrap; gap: 14px; }
.dl-card__action { flex: none; display: flex; align-items: center; }
@media (max-width: 575px) { .dl-card { flex-direction: column; } .dl-card__action { align-self: flex-start; } }

/* ============================ 404 ============================ */
.err-page { min-height: 68vh; display: flex; align-items: center; text-align: center; }
.err-page__code { font-size: clamp(80px, 14vw, 160px); font-weight: 800; line-height: 1; background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent; }