/* 产品与培训：独立于知识库的展示模块，仅图片与说明，不进入 AI 上下文。 */
.training-hero { padding: 26px 28px; background: #fff; border: 1px solid var(--line); box-shadow: none; }
.training-hero .eyebrow { color: #1f7a8c; }
.training-hero h2 { font-size: clamp(24px, 2.1vw, 32px); letter-spacing: -.03em; }
.training-hero p { font-size: 15px; }
.training-badge { display: flex; flex-direction: column; gap: 5px; padding-left: 24px; border-left: 1px solid var(--line); min-width: 170px; }
.training-badge span, .training-badge small { color: var(--muted); font-size: 12px; }
.training-badge strong { font-size: 16px; font-weight: 600; }

.training-blocks { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin: 24px 0; }
.training-blocks--reader { display: block; }

.training-block { display: flex; position: relative; min-height: 220px; flex-direction: column; align-items: flex-start; text-align: left; gap: 10px; padding: 26px 24px; border: 1px solid var(--line); border-radius: 18px; background: #fff; color: var(--ink); transition: transform .15s, box-shadow .15s, border-color .15s; }
.training-block:hover { transform: translateY(-2px); border-color: #9fc7ce; box-shadow: 0 12px 30px #1f7a8c14; }
.training-block-mark { color: #9fc7ce; font-size: 13px; letter-spacing: .14em; font-weight: 600; }
.training-block > strong { font-size: 24px; font-weight: 650; letter-spacing: -.02em; }
.training-block > p { margin: 0; color: #6d7780; font-size: 14px; line-height: 1.8; }
.training-block > footer { display: flex; width: 100%; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 16px; border-top: 1px solid #eef1f2; font-size: 13px; color: var(--muted); }
.training-block > footer b { color: #1f7a8c; font-weight: 600; }
.training-block--product { background: linear-gradient(160deg, #f2fbfc, #ffffff 60%); }
.training-block--operation { background: linear-gradient(160deg, #f4f8ff, #ffffff 60%); }
.training-block--training { background: linear-gradient(160deg, #f7f4ff, #ffffff 60%); }
#view-training button:focus-visible { outline: 3px solid #7fc4cf; outline-offset: 3px; }

.training-list-head { display: flex; flex-direction: column; gap: 14px; margin-bottom: 22px; }
.training-list-head .eyebrow { color: #1f7a8c; }
.training-list-head h3 { margin: 4px 0 0; font-size: 24px; }
.training-list-head p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.training-list-head .secondary-button { align-self: flex-start; }

.training-article-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.training-article-card { display: flex; overflow: hidden; flex-direction: column; text-align: left; padding: 0; border: 1px solid var(--line); border-radius: 16px; background: #fff; color: inherit; transition: border-color .15s, box-shadow .15s; }
.training-article-card:hover { border-color: #9fc7ce; box-shadow: 0 8px 24px #1f7a8c0f; }
.training-article-cover { display: flex; height: 170px; align-items: center; justify-content: center; padding: 12px; background: #f6f9fa; border-bottom: 1px solid #eef1f2; color: var(--muted); font-size: 13px; }
.training-article-cover img { width: 100%; height: 100%; object-fit: contain; }
.training-article-copy { display: flex; flex-direction: column; gap: 8px; padding: 18px 20px 20px; }
.training-article-copy > strong { font-size: 17px; line-height: 1.6; font-weight: 650; }
.training-article-copy > p { margin: 0; color: #6d7780; font-size: 13px; line-height: 1.75; }
.training-article-copy > small { color: var(--muted); font-size: 12px; }

.training-dialog { width: min(1080px, calc(100vw - 48px)); max-width: none; height: min(940px, calc(100dvh - 48px)); max-height: calc(100dvh - 48px); padding: 28px 32px 48px; border: 0; background: #eef1f2; color: var(--ink); overflow-y: auto; border-radius: 18px; }
.training-dialog .viewer-close { position: sticky; top: 0; float: right; color: var(--muted); background: #ffffff; z-index: 4; }
.training-reader-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-right: 48px; margin: 4px 0 22px; font-size: 12px; color: var(--muted); }
.training-reader-top button { padding: 6px 0; color: #1f7a8c; background: transparent; font-size: 14px; }
.training-reader-heading { padding: 0 0 24px; margin-bottom: 24px; border-bottom: 1px solid #dbe2e4; }
.training-reader-heading > small { color: #1f7a8c; font-size: 13px; }
.training-reader-heading h2 { margin: 10px 0; font-size: clamp(24px, 2.3vw, 34px); line-height: 1.45; letter-spacing: -.025em; font-weight: 650; }
.training-reader-heading p { margin: 12px 0 0; max-width: 820px; color: #6d7780; font-size: 16px; line-height: 1.8; }
.training-pages { display: flex; flex-direction: column; align-items: center; gap: 22px; }
.training-page { width: min(760px, 100%); margin: 0; padding: 0; background: #fff; border-radius: 10px; box-shadow: 0 6px 20px #2a35400f; overflow: hidden; }
.training-page img { display: block; width: 100%; height: auto; }
.training-page figcaption { padding: 10px 16px 14px; color: var(--muted); font-size: 12px; border-top: 1px solid #eef1f2; }

@media (max-width: 1100px) {
  .training-blocks { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .training-article-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  .training-hero { padding: 22px; }
  .training-hero .training-badge { border-left: 0; padding-left: 0; min-width: 0; margin-top: 10px; }
  .training-blocks { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .training-block { min-height: 180px; padding: 20px; }
  .training-article-grid { grid-template-columns: minmax(0, 1fr); }
  .training-dialog { width: calc(100vw - 16px); height: calc(100dvh - 16px); max-height: calc(100dvh - 16px); padding: 18px 14px 32px; border-radius: 12px; }
  .training-reader-top { padding-right: 8px; }
}