/* 深色 Agent 团队区。 */
.agents-section {
  width: 100%;
  max-width: none;
  padding: 112px max(32px, calc((100vw - var(--content)) / 2));
  color: white;
  background:
    radial-gradient(circle at 76% 26%, rgba(61, 117, 236, 0.25), transparent 28%),
    linear-gradient(145deg, #07142f, #091b40 62%, #07142f);
}

.agents-intro {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 50px;
  align-items: end;
}

.light-heading h2 {
  color: white;
}

.light-heading > p:last-child {
  color: rgba(221, 230, 247, 0.68);
}

.agent-principle {
  display: grid;
  min-width: 270px;
  gap: 12px;
  border-left: 1px solid rgba(255, 255, 255, 0.18);
  padding-left: 28px;
  padding-bottom: 5px;
}

.agent-principle span {
  color: #83a8fa;
  font-size: 11px;
  font-weight: 800;
}

.agent-principle strong {
  font-size: 21px;
  line-height: 1.55;
}

.agent-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.agent-grid article {
  min-height: 220px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.045);
  backdrop-filter: blur(12px);
}

.agent-grid article:last-child {
  grid-column: span 2;
}

.agent-grid article > span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 44px;
  border: 1px solid rgba(132, 172, 255, 0.2);
  border-radius: 13px;
  color: #b8ceff;
  background: rgba(68, 119, 227, 0.14);
  font-weight: 850;
}

.agent-grid h3 {
  margin-bottom: 10px;
  font-size: 18px;
}

.agent-grid p {
  margin-bottom: 0;
  color: rgba(221, 230, 247, 0.62);
  font-size: 14px;
  line-height: 1.7;
}

/* 客户交付结果。 */
.deliverables-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(520px, 1.18fr);
  gap: 86px;
  align-items: start;
}

.sticky-heading {
  position: sticky;
  top: 34px;
  margin-bottom: 0;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  color: var(--blue-700);
  font-weight: 800;
}

.text-link span {
  transition: transform 160ms ease;
}

.text-link:hover span {
  transform: translateX(4px);
}

.deliverable-stack {
  display: grid;
  gap: 14px;
}

.deliverable-stack article {
  display: grid;
  min-height: 158px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
  background: var(--surface-soft);
  grid-template-columns: 74px 1fr;
  gap: 22px;
}

.file-type {
  display: grid;
  width: 70px;
  height: 84px;
  place-items: center;
  border: 1px solid #cedbf3;
  border-radius: 12px 20px 12px 12px;
  color: var(--blue-700);
  background: white;
  box-shadow: 0 12px 24px rgba(37, 78, 155, 0.08);
  font-size: 11px;
  font-weight: 900;
}

.deliverable-stack h3 {
  margin-bottom: 8px;
  font-size: 21px;
}

.deliverable-stack p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.7;
}

/* 安全与人工审批边界。 */
.boundary-section {
  padding-top: 36px;
}

.boundary-panel {
  display: grid;
  overflow: hidden;
  border-radius: 30px;
  color: white;
  background: linear-gradient(135deg, #174899, #0a2454 62%, #071936);
  box-shadow: 0 28px 70px rgba(13, 48, 112, 0.24);
  grid-template-columns: 0.82fr 1.18fr;
}

.boundary-copy {
  display: flex;
  min-height: 560px;
  justify-content: center;
  flex-direction: column;
  padding: 64px;
  background:
    radial-gradient(circle at 0 100%, rgba(99, 216, 227, 0.18), transparent 34%),
    rgba(0, 0, 0, 0.04);
}

.boundary-copy .eyebrow {
  color: #9adce2;
}

.boundary-copy > p:last-child {
  color: rgba(232, 239, 252, 0.68);
}

.boundary-list {
  display: grid;
  align-content: center;
  gap: 12px;
  padding: 42px;
  background: rgba(1, 11, 33, 0.24);
}

.boundary-list article {
  display: grid;
  align-items: flex-start;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.055);
  grid-template-columns: 34px 1fr;
  gap: 14px;
}

.boundary-list article > span {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 50%;
  color: #9de8d5;
  background: rgba(46, 189, 133, 0.14);
  font-weight: 900;
}

.boundary-list h3 {
  margin-bottom: 5px;
  font-size: 17px;
}

.boundary-list p {
  margin-bottom: 0;
  color: rgba(229, 237, 251, 0.62);
  font-size: 13px;
  line-height: 1.65;
}

/* 三种开始方式。 */
.delivery-mode-section {
  padding-top: 90px;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.mode-grid article {
  display: flex;
  min-height: 312px;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 30px;
  background: white;
  flex-direction: column;
}

.mode-grid article > span {
  margin-bottom: 52px;
  color: #a7b4ca;
  font-size: 12px;
  font-weight: 850;
}

.mode-grid h3 {
  margin-bottom: 13px;
  font-size: 24px;
}

.mode-grid p {
  margin-bottom: auto;
  color: var(--muted);
  line-height: 1.75;
}

.mode-grid b {
  margin-top: 28px;
  color: var(--blue-700);
  font-size: 13px;
}

.mode-featured {
  color: white;
  border-color: transparent !important;
  background: linear-gradient(145deg, #255bc2, #0d2e6d) !important;
  box-shadow: 0 22px 54px rgba(33, 78, 172, 0.24);
}

.mode-featured p,
.mode-featured > span {
  color: rgba(231, 238, 252, 0.68);
}

.mode-featured b {
  color: #b8ceff;
}

/* 页面结尾行动区与页脚。 */
.final-cta {
  display: grid;
  width: min(calc(100% - 64px), var(--content));
  margin: 0 auto 36px;
  border-radius: 30px;
  padding: 58px 62px;
  color: white;
  background:
    radial-gradient(circle at 86% 30%, rgba(99, 216, 227, 0.16), transparent 28%),
    linear-gradient(120deg, #07142f, #113778);
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 50px;
  align-items: center;
}

.final-cta > div:first-child {
  max-width: 720px;
}

.final-cta .eyebrow {
  color: #8eb1ff;
}

.final-cta h2 {
  font-size: clamp(32px, 3.5vw, 48px);
}

.final-cta p:last-child {
  margin-bottom: 0;
  color: rgba(224, 233, 249, 0.7);
  line-height: 1.75;
}

.final-actions {
  justify-content: flex-end;
}

.button-light {
  color: #102b60;
  background: white;
}

.button-outline-light {
  border-color: rgba(255, 255, 255, 0.26);
  color: white;
  background: rgba(255, 255, 255, 0.06);
}

.site-footer {
  display: grid;
  width: min(calc(100% - 64px), var(--content));
  min-height: 120px;
  margin: 0 auto;
  align-items: center;
  border-top: 1px solid var(--line);
  grid-template-columns: auto 1fr auto;
  gap: 38px;
}

.footer-brand .brand-mark {
  border: 0;
}

.footer-brand .brand-copy small {
  color: var(--muted);
}

.site-footer > p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
  text-align: center;
}

.site-footer > div:last-child {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-size: 12px;
}


/* 响应式规则拆分到独立文件，便于官网后续维护。 */