/* 产品页独立视觉：界面示意、大幅留白与清晰的功能层级。 */
.product-toolkit { padding-top: 80px; }
.product-toolkit-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 26px; }
.product-toolkit-grid article { display: flex; flex-direction: column; align-items: start; padding: 28px 0; border-top: 1px solid #d9e5de; }
.product-toolkit-icon { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; color: #36786f; background: #edf5f0; }
.product-toolkit-icon svg { width: 24px; height: 24px; }
.product-toolkit-grid h3 { margin-top: 22px; color: #194735; font-size: 21px; line-height: 1.4; }
.product-toolkit-grid p { margin: 14px 0 20px; color: #587265; font-size: 13px; line-height: 1.9; }
.product-toolkit-tag { margin-top: auto; color: #608375; font-size: 11px; }
@media (max-width: 900px) { .product-toolkit-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 28px; } }
@media (max-width: 700px) { .product-toolkit { padding-top: 54px; } .product-toolkit-grid article { padding: 22px 0; } .product-toolkit-grid h3 { font-size: 18px; } }
@media (max-width: 380px) { .product-toolkit-grid { grid-template-columns: minmax(0, 1fr); gap: 8px; } }

body[data-page="product"] { background: #f7faf8; }
/* 与首页采用相同的首屏高度，让背景大图占据导航下方的完整视野。 */
body[data-page="product"] .inner-hero {
  min-height: max(820px, calc(100vh - var(--home-header-height) + 120px));
  min-height: max(820px, calc(100svh - var(--home-header-height) + 120px));
  padding: 72px 0 150px;
  background-image: linear-gradient(90deg, #effaf4 0%, rgba(239,250,244,.96) 25%, rgba(239,250,244,.72) 43%, rgba(239,250,244,.08) 72%, transparent 100%), url("promo-product-hero-20260925.webp");
  background-position: center;
  background-size: cover;
}
body[data-page="product"] .inner-hero::after { height: 120px; background: linear-gradient(180deg, transparent, #f7faf8); }
.product-hero .inner-hero-copy { max-width: 700px; }
.product-hero .inner-lead { max-width: 590px; font-size: 16px; line-height: 1.9; }
.product-hero-points { display: flex; flex-wrap: wrap; gap: 12px 24px; margin: 30px 0 0; padding: 0; list-style: none; color: #42675b; font-size: 13px; }
.product-hero-points li { display: flex; align-items: center; gap: 8px; }
.product-hero-points li::before { width: 5px; height: 5px; border-radius: 50%; background: #36786f; content: ""; }
.product-capabilities { padding-top: 72px; }
.product-section-heading { display: flex; justify-content: space-between; align-items: end; gap: 36px; margin-bottom: 44px; }
.product-section-heading > div { min-width: 0; }
.product-section-heading h2 { margin-top: 16px; color: #143f34; font-size: clamp(30px, 3.4vw, 46px); line-height: 1.35; letter-spacing: -.035em; text-wrap: balance; }
.product-section-heading > p { max-width: 420px; padding-bottom: 5px; color: #587265; font-size: 15px; line-height: 1.9; text-wrap: pretty; }
.product-capabilities .product-path-overview { margin-bottom: 32px; border: 0; border-radius: 16px; background: #edf4ef; }
.product-capabilities .product-path-copy { padding: 32px 0 32px 36px; }
.product-path-copy h3 { margin: 16px 0; color: #143f34; font-size: clamp(24px, 2.4vw, 32px); line-height: 1.4; }
.product-capabilities .product-path-question { margin-top: 20px; }
.product-capabilities .capability-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.product-capabilities .capability-card { display: flex; flex-direction: column; min-height: 0; border: 1px solid #e2ebe5; border-radius: 18px; background: #fff; box-shadow: 0 4px 8px rgba(21,67,42,.015), 0 18px 44px rgba(21,67,42,.035); }
.product-capabilities .capability-visual { display: flex; align-items: center; justify-content: center; min-height: 0; padding: 0; background: #f0f6f3; }
.product-capabilities .capability-visual img { display: block; width: 100%; height: auto; max-height: none; aspect-ratio: 3 / 2; object-fit: contain; }
.product-capabilities .capability-copy { display: flex; flex: 1; flex-direction: column; align-self: stretch; padding: 32px 34px; }
.product-capabilities .capability-index { color: #527d6b; font-size: 11px; letter-spacing: .08em; font-variant-numeric: tabular-nums; }
.product-capabilities .capability-copy h3 { margin-top: 12px; color: #123f33; font-size: 30px; line-height: 1.35; letter-spacing: -.025em; }
.product-capabilities .capability-copy > p { max-width: 600px; margin-top: 16px; color: #587265; font-size: 14px; line-height: 1.9; }
.product-capabilities .capability-copy ul { gap: 10px; margin: 22px 0 26px; list-style: none; }
.product-capabilities .capability-copy li { display: inline-flex; align-items: center; gap: 6px; min-height: 28px; padding: 4px 10px; border-radius: 5px; background: #f0f6f3; color: #3b6b58; font-size: 12px; line-height: 1.5; font-weight: 500; }
.capability-outcome { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 14px; margin-top: auto; padding-top: 20px; border-top: 1px solid #edf1ee; }
.capability-outcome span { color: #83958a; font-size: 11px; }
.capability-outcome strong { color: #2b5b47; font-size: 13px; line-height: 1.6; font-weight: 600; }
.product-capabilities .capability-card-wide { display: grid; grid-column: 1 / -1; grid-template-columns: 1fr 1fr; }
.product-capabilities .capability-card-wide .capability-copy { justify-content: center; max-width: none; padding: 36px 40px; }
.product-capabilities .capability-card-wide .capability-outcome { margin-top: 0; }
.product-capabilities .capability-card-featured { grid-template-columns: .85fr 1.15fr; }
.product-capabilities .capability-card-featured .capability-copy { order: -1; }
.product-visual-note { margin: 18px 0 0; color: #819187; font-size: 11px; text-align: right; }
.product-workflow { margin-top: 88px; padding: 76px 0 84px; border-top: 1px solid #e3ebe5; background: #edf4ef; }
.product-workflow .page-eyebrow { color: #36786f; }
.product-workflow .workflow-list { gap: 28px; }
.product-workflow .workflow-list li { min-height: 0; padding: 22px 0 0; border: 0; border-top: 1px solid #c7dace; border-radius: 0; background: transparent; }
.product-workflow .workflow-list span { color: #608375; font-size: 11px; font-weight: 500; font-variant-numeric: tabular-nums; }
.product-workflow .workflow-list strong { margin-top: 16px; color: #194735; font-size: 19px; font-weight: 600; }
.product-workflow .workflow-list p { margin-top: 12px; color: #587265; font-size: 13px; line-height: 1.9; }
.product-start { padding: 88px 0; background: radial-gradient(ellipse at 85% 0%, rgba(73,136,104,.26), transparent 65%), #123f34; }
.product-start-grid { display: grid; grid-template-columns: 1.3fr 1fr; align-items: center; gap: 90px; }
.product-start-copy .page-eyebrow { color: #aad3be; }
.product-start-copy h2 { margin-top: 20px; color: #fff; font-size: clamp(30px, 3.4vw, 46px); line-height: 1.4; letter-spacing: -.035em; text-wrap: balance; }
.product-start-copy > p:not(.page-eyebrow) { margin-top: 22px; color: #bed6c9; font-size: 14px; line-height: 1.9; }
.product-start .inner-actions { margin-top: 30px; gap: 12px; }
.product-start .btn { min-height: 48px; border-radius: 5px; font-size: 14px; }
.product-start .btn-light { color: #1c5845; box-shadow: none; }
.product-start .btn-on-dark { background: transparent; border-color: #699887; color: #e6f3eb; }
.product-start .btn-on-dark:hover { background: rgba(255,255,255,.08); border-color: #bed6c9; }
.product-start .btn:focus-visible { outline-color: #d2f2dd; }
.product-start-scope { padding: 30px 32px; border: 1px solid rgba(188,218,201,.22); border-radius: 16px; background: rgba(255,255,255,.035); }
.product-start-scope > p { color: #c2ddce; font-size: 14px; font-weight: 600; }
.product-start-scope ul { display: grid; gap: 22px; margin: 26px 0; padding: 0; list-style: none; }
.product-start-scope li { display: grid; gap: 6px; }
.product-start-scope li > span { color: #93b9a6; font-size: 11px; }
.product-start-scope strong { color: #f0f7f2; font-size: 16px; font-weight: 500; }
.product-start-scope > a { display: inline-flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 44px; width: 100%; padding-top: 12px; border-top: 1px solid rgba(188,218,201,.2); color: #bde2cc; font-size: 12px; text-decoration: none; }
.product-start-scope > a:hover { color: #fff; }
.product-start-scope > a:focus-visible { outline: 2px solid #d2f2dd; outline-offset: 5px; }
body[data-page="product"] #product-contact { scroll-margin-top: 130px; }
@media (max-width: 1100px) {
  .product-start-grid { gap: 40px; }
  .product-capabilities .capability-copy { padding: 28px; }
  .product-capabilities .capability-copy h3 { font-size: 27px; }
}
@media (max-width: 900px) {
  body[data-page="product"] .inner-hero { padding-top: 58px; }
  .product-section-heading { align-items: start; flex-direction: column; gap: 20px; }
  .product-section-heading > p { max-width: 560px; }
  .product-capabilities .product-path-copy { padding: 30px 30px 12px; }
  .product-capabilities .capability-card-wide .capability-copy { padding: 28px; }
  .product-start-grid { grid-template-columns: 1fr; gap: 36px; }
  .product-start-scope { max-width: 600px; }
  .product-workflow .workflow-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 700px) {
  body[data-page="product"] .inner-hero {
    min-height: max(770px, calc(100vh - var(--home-header-height) + 120px));
    min-height: max(770px, calc(100svh - var(--home-header-height) + 120px));
    padding: 42px 0 125px;
    background-image: linear-gradient(180deg, rgba(239,250,244,.98), rgba(239,250,244,.92) 48%, rgba(239,250,244,.08) 100%), url("promo-product-hero-20260925.webp");
    background-position: center, 58% center;
  }
  .product-hero .inner-lead { font-size: 14px; }
  .product-hero-points { gap: 10px 18px; margin-top: 24px; font-size: 11px; }
  .product-capabilities { padding-top: 48px; }
  .product-section-heading { margin-bottom: 28px; }
  .product-section-heading > p { font-size: 13px; }
  .product-capabilities .capability-grid { grid-template-columns: minmax(0, 1fr); gap: 22px; }
  .product-capabilities .capability-card-wide { display: flex; }
  .product-capabilities .capability-card-featured .capability-copy { order: 0; }
  .product-capabilities .capability-copy, .product-capabilities .capability-card-wide .capability-copy { padding: 26px; }
  .product-capabilities .capability-copy h3, .product-capabilities .capability-card-wide .capability-copy h3 { font-size: 27px; }
  .product-capabilities .capability-copy > p, .product-capabilities .capability-card-wide .capability-copy > p { font-size: 13px; }
  .product-capabilities .capability-copy ul { gap: 8px; margin-top: 20px; }
  .product-capabilities .capability-copy li { font-size: 11px; }
  .product-visual-note { text-align: left; line-height: 1.8; }
  .product-workflow { margin-top: 56px; padding: 54px 0; }
  .product-workflow .workflow-list { gap: 26px 20px; }
  .product-workflow .workflow-list strong { font-size: 17px; }
  .product-start { padding: 56px 0; }
  .product-start-copy > p:not(.page-eyebrow) { font-size: 13px; }
  .product-start-scope { padding: 26px; }
}
@media (max-width: 380px) {
  .product-capabilities .capability-copy, .product-capabilities .capability-card-wide .capability-copy { padding: 22px; }
  .product-workflow .workflow-list { grid-template-columns: minmax(0, 1fr); }
}