/* 工具产品的首页入口、四阶段说明与真实界面展示，复用官网品牌色。 */
.tool-products-heading { margin: 70px 0 28px; }
.tool-products-heading h3 { margin: 12px 0 10px; font-size: clamp(26px, 3vw, 38px); }
.tool-products-heading > p:last-child { color: var(--muted); margin: 0; }
.tool-products-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.tool-product-card { padding: 38px; border: 1px solid var(--line); background: rgba(255,255,255,.72); }
.tool-product-label { color: var(--green); font-size: 11px; font-weight: 750; letter-spacing: .14em; }
.tool-product-card h3 { margin: 20px 0 16px; font-size: 27px; line-height: 1.4; }
.tool-product-card > p { color: var(--muted); font-size: 14px; margin: 0; line-height: 1.9; }
.tool-card-stages { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 28px 0; padding: 18px 0; border-block: 1px solid var(--line); list-style: none; gap: 8px; }
.tool-card-stages li { color: #435a6d; font-size: 12px; }
.tool-card-links { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; font-size: 13px; }
.tool-card-links a:first-child { font-weight: 700; color: var(--blue); }
.tool-card-links a:last-child { color: #3c6577; }
.tool-card-links a:hover { text-decoration: underline; text-underline-offset: 4px; }
.tool-hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 36px; }
.tool-detail-page .detail-hero { min-height: 720px; }
.tool-detail-page .detail-section-head > div { min-width: 0; }
.tool-feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.tool-feature-grid article { padding: 32px; background: #fff; border: 1px solid var(--line); }
.tool-feature-grid article > span { color: var(--green); font-size: 12px; font-weight: 700; }
.tool-feature-grid h3 { font-size: 20px; line-height: 1.5; margin: 20px 0 14px; }
.tool-feature-grid p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.9; }
.connection-diagram { display: grid; grid-template-columns: 1fr 30px 1fr 30px 1fr 30px 1fr; align-items: center; gap: 8px; }
.connection-diagram > div { min-width: 0; padding: 30px 18px; text-align: center; background: #fff; border: 1px solid var(--line); }
.connection-diagram > b { color: var(--green); text-align: center; font-size: 24px; font-weight: 400; }
.connection-diagram span { display: block; font-size: 11px; color: var(--green); }
.connection-diagram strong { display: block; font-size: 20px; margin: 14px 0; }
.connection-diagram small { display: block; color: var(--muted); font-size: 12px; }
.tool-note { color: var(--muted); font-size: 12px; margin: 22px 0 0; }
.stage-route { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border: 1px solid var(--line); margin-bottom: 48px; }
.stage-route a { padding: 28px; background: #fff; border-right: 1px solid var(--line); transition: background .2s; }
.stage-route a:last-child { border-right: 0; }
.stage-route a:hover { background: #e8f0fb; }
.stage-route b { color: var(--green); font-size: 12px; }
.stage-route span { display: block; font-size: 21px; font-weight: 700; margin: 18px 0 8px; }
.stage-route small { color: var(--muted); font-size: 12px; }
.stage-stories > article { display: grid; grid-template-columns: 70px minmax(0, 1fr) 220px; gap: 36px; padding: 44px 0; border-top: 1px solid var(--line); scroll-margin-top: 100px; }
.stage-stories > article:last-child { border-bottom: 1px solid var(--line); }
.stage-number { color: var(--green); font-size: 34px; font-weight: 600; line-height: 1; padding-top: 6px; }
.stage-label { font-size: 12px; color: var(--blue); font-weight: 700; }
.stage-stories h3 { margin: 14px 0 18px; font-size: 27px; line-height: 1.5; }
.stage-stories p { color: var(--muted); font-size: 15px; line-height: 1.9; margin: 0; }
.stage-deliverables { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.stage-deliverables span { padding: 6px 10px; color: #496073; background: #e8eef3; font-size: 11px; }
.stage-stories aside { padding: 8px 0 8px 24px; border-left: 1px solid var(--line); }
.stage-stories aside b { font-size: 12px; color: var(--green); }
.stage-stories aside p { font-size: 13px; margin-top: 18px; line-height: 2; }
.product-shot { margin: 0; background: #fff; border: 1px solid var(--line); min-width: 0; box-shadow: 0 15px 40px rgba(7,24,39,.05); }
.product-shot a { display: block; background: #f6f8f9; }
.product-shot img { width: 100%; height: auto; }
.product-shot figcaption { display: flex; flex-direction: column; gap: 8px; padding: 22px 26px; border-top: 1px solid var(--line); }
.product-shot figcaption b { font-size: 16px; }
.product-shot figcaption span { color: var(--muted); font-size: 13px; }
.product-shot-wide { margin-bottom: 26px; }
.product-shot-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; align-items: start; }
.tool-use-case { margin-top: 38px; padding: 28px 34px; border-left: 3px solid var(--green); background: #eaf0f1; }
.tool-use-case b { font-size: 17px; }
.tool-use-case p { margin: 12px 0 0; color: #566b78; font-size: 14px; line-height: 1.9; }
.tool-detail-page a:focus-visible, .tool-products-grid a:focus-visible { outline: 2px solid var(--blue); outline-offset: 5px; }

@media (max-width: 1000px) {
  .tool-feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tool-product-card { padding: 28px; }
  .stage-stories > article { grid-template-columns: 50px minmax(0, 1fr); gap: 24px; }
  .stage-stories aside { grid-column: 2; }
  .stage-route a { padding: 24px 18px; }
  .connection-diagram { grid-template-columns: 1fr; gap: 12px; }
  .connection-diagram > b { transform: rotate(90deg); }
}
@media (max-width: 680px) {
  .tool-products-grid, .tool-feature-grid, .product-shot-grid { grid-template-columns: 1fr; }
  .tool-products-heading { margin-top: 52px; }
  .tool-card-stages { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .tool-detail-page .detail-hero { min-height: auto; }
  .tool-hero-actions { flex-direction: column; }
  .stage-route { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stage-route a { border-bottom: 1px solid var(--line); }
  .stage-route a:nth-child(even) { border-right: 0; }
  .stage-route a:nth-child(n+3) { border-bottom: 0; }
  .stage-route span { font-size: 19px; }
  .stage-stories > article { grid-template-columns: 1fr; gap: 18px; padding: 32px 0; }
  .stage-number { font-size: 26px; }
  .stage-stories h3 { font-size: 23px; }
  .stage-stories aside { grid-column: auto; }
  .tool-feature-grid article { padding: 26px; }
  .product-shot figcaption { padding: 18px; }
  .tool-use-case { padding: 24px; }
}