/* ========================================
   YOYAGE Selection Guide Page Styles
   Purpose: selection logic steps + docs-style glossary
   Loaded only on /selection-guide/index.html
   ======================================== */

/* ---------- 1. Selection Logic Steps ---------- */
.subtitle-accent {
  color: var(--color-brand);
  font-weight: 600;
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.step-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 28px;
}

.step-head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.step-badge {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-brand);
  color: var(--color-white);
  font-size: 15px;
  font-weight: 700;
}

.step-title {
  font-size: 20px;
}

.step-intro {
  margin: 0;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

/* Step 1 mapping block */
.mapping-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.mapping-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.mapping-label {
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--color-title);
}

.mapping-arrow {
  color: var(--color-title);
  font-weight: 700;
}

.mapping-tags {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px 12px;
}

.step-sub-label {
  display: block;
  margin-bottom: 8px;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--color-title);
}

.step-note {
  margin: 0;
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

/* Drive sub-cards (Steps 2 & 3) */
.drive-subcards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.drive-subcard {
  padding: 16px;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
}

.drive-subcard-title {
  margin: 0 0 8px;
  font-size: 16px;
}

.drive-subcard p {
  margin: 0;
  font-size: var(--fs-small);
}

/* Mini numbered steps inside Step 3 */
.mini-steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-small);
}

.mini-steps li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.mini-step-num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  margin-top: 1px;
  border-radius: 50%;
  background-color: var(--color-tag-bg);
  color: var(--color-brand);
  font-size: 12px;
  font-weight: 700;
}

/* Step 4 contact items */
.contact-items {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 16px;
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-card);
  font-size: var(--fs-small);
}

.contact-item strong {
  color: var(--color-title);
}

.step-actions {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.step-actions .btn {
  width: 100%;
}

/* 横向排列(用于 Drive Type 卡片的三个筛选跳转按钮) */
.step-actions--row {
  flex-direction: row;
  gap: 10px;
}

.step-actions--row .btn {
  width: auto;
  flex: 1;
  padding: 8px 10px;
  font-size: 13px;
}

/* ---------- 2. Glossary Layout ---------- */
#glossary {
  scroll-margin-top: calc(120px + var(--expo-bar-h));
}

.glossary-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 32px;
  align-items: start;
}

/* Left: term navigation */
.glossary-nav {
  position: sticky;
  top: 120px;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 8px;
}

.glossary-group + .glossary-group {
  border-top: 1px solid var(--color-border);
}

.glossary-group-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  padding: 12px 10px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-title);
  text-align: left;
  transition: color var(--transition-fast);
}

.glossary-group-btn:hover {
  color: var(--color-brand);
}

.glossary-group-btn svg {
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}

.glossary-group.is-open .glossary-group-btn svg {
  transform: rotate(180deg);
}

.glossary-terms {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
}

/* JS 可用时折叠未展开的分组;无 JS 全部分组保持可见 */
html.js .glossary-group:not(.is-open) .glossary-terms {
  display: none;
}

.glossary-term-link {
  display: block;
  padding: 7px 10px;
  border-radius: 6px;
  border-left: 2px solid transparent;
  font-size: 14px;
  color: var(--color-text);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.glossary-term-link:hover {
  color: var(--color-brand);
  background-color: var(--color-tag-bg);
}

.glossary-term-link.is-active {
  color: var(--color-brand);
  background-color: var(--color-tag-bg);
  font-weight: 600;
}

/* Right: glossary article (fixed height, independent scroll) */
.glossary-content {
  position: relative;
  /* 术语跳转的页面级定位目标:对齐吸顶导航下方 */
  scroll-margin-top: calc(120px + var(--expo-bar-h));
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 8px 32px 32px;
}

/* JS 可用时限制高度独立滚动;无 JS 时为正常文档流,全部可见 */
html.js .glossary-content {
  max-height: 640px;
  overflow-y: auto;
  scroll-behavior: smooth;
}

.glossary-topic + .glossary-topic {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 2px solid var(--color-border);
}

.glossary-topic-title {
  margin: 16px 0 8px;
  font-size: 24px;
  color: var(--color-brand);
}

.glossary-term {
  padding: 16px 0 12px 16px;
  border-left: 3px solid transparent;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.glossary-term + .glossary-term {
  margin-top: 8px;
  border-top: 1px dashed var(--color-border);
}

.glossary-term.is-current {
  border-left-color: var(--color-brand);
}

/* 锚点跳转后的短暂高亮闪烁 */
.glossary-term.is-flash {
  border-left-color: var(--color-brand);
  background-color: rgba(0, 100, 124, 0.06);
}

.glossary-term-title {
  margin: 0 0 8px;
  font-size: 18px;
}

/* 标题后的别名/同义名称 */
.glossary-term-alias {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-muted);
}

.glossary-term p {
  margin: 0 0 8px;
  font-size: var(--fs-small);
}

.glossary-term p:last-child {
  margin-bottom: 0;
}

/* 术语解释末尾的产品列表筛选跳转 */
.glossary-term-link-row {
  margin-top: 8px;
  font-size: var(--fs-small);
}

/* ---------- 3. Responsive ---------- */
@media (max-width: 991px) {
  .glossary-layout {
    grid-template-columns: 1fr;
  }

  /* 移动端:导航列表不再 sticky、置于正文上方;正文改用 70vh 固定窗口 */
  .glossary-nav {
    position: static;
    max-height: none;
    overflow: visible;
  }

  /* 移动端:正文同样采用固定窗口,术语跳转定位逻辑与桌面端一致 */
  html.js .glossary-content {
    max-height: 70vh;
  }
}

@media (max-width: 767px) {
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .drive-subcards {
    grid-template-columns: 1fr;
  }

  .step-card {
    padding: 18px;
  }

  .glossary-content {
    padding: 8px 20px 24px;
    scroll-margin-top: calc(88px + var(--expo-bar-h));
  }
}