/**
 * 智能模型（v-auto / i-auto / c-auto / a-auto）静态产品介绍页
 * 与 landing.css 及各主题 *-landing.css 叠加使用
 */

.tp-smart-model-main {
  --tp-sm-accent: #4f46e5;
  --tp-sm-accent-soft: #6366f1;
  --tp-sm-violet: #7c3aed;
  --tp-sm-text: #0f172a;
  --tp-sm-muted: #64748b;
  --tp-sm-border: rgba(15, 23, 42, 0.08);
  --tp-sm-content-max: min(1140px, 92vw);
}

/* —— Hero —— */
.tp-sm-hero {
  position: relative;
  padding: 0 0 56px;
  overflow: hidden;
}

.tp-sm-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.tp-sm-hero-inner {
  position: relative;
  max-width: var(--tp-sm-content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr minmax(260px, 340px);
  gap: 40px;
  align-items: center;
}

.tp-sm-eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 12px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tp-sm-accent);
  background: rgba(99, 102, 241, 0.1);
  border-radius: 999px;
}

.tp-sm-h1 {
  margin: 0 0 16px;
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--tp-sm-text);
}

.tp-sm-lead {
  margin: 0 0 24px;
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--tp-sm-muted);
  max-width: 52ch;
}

.tp-sm-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.tp-sm-hero-panel {
  padding: 22px 24px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--tp-sm-border);
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.06);
  backdrop-filter: blur(8px);
}

.tp-sm-hero-panel-title {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--tp-sm-muted);
}

.tp-sm-hero-panel-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.tp-sm-hero-panel-list li {
  position: relative;
  padding: 8px 0 8px 18px;
  font-size: 14px;
  line-height: 1.45;
  color: var(--tp-sm-text);
  border-bottom: 1px solid rgba(15, 23, 42, 0.05);
}

.tp-sm-hero-panel-list li:last-child {
  border-bottom: none;
}

.tp-sm-hero-panel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--tp-sm-accent), var(--tp-sm-violet));
}

/* —— Sections —— */
.tp-sm-section {
  max-width: var(--tp-sm-content-max);
  margin: 0 auto;
  padding: 56px 24px;
}

.tp-sm-section--alt {
  background: rgba(241, 245, 249, 0.55);
  border-top: 1px solid var(--tp-sm-border);
  border-bottom: 1px solid var(--tp-sm-border);
}

.tp-sm-section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 36px;
}

.tp-sm-section-tag {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--tp-sm-accent);
}

.tp-sm-section-title {
  margin: 0 0 10px;
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--tp-sm-text);
}

.tp-sm-section-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--tp-sm-muted);
}

/* —— Feature cards —— */
.tp-sm-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.tp-sm-feature-card {
  padding: 24px 22px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--tp-sm-border);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.tp-sm-feature-card:hover {
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.07);
  transform: translateY(-2px);
}

.tp-sm-feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 14px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(124, 58, 237, 0.08));
  font-size: 20px;
  line-height: 1;
}

.tp-sm-feature-title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--tp-sm-text);
}

.tp-sm-feature-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--tp-sm-muted);
}

/* —— Use cases —— */
.tp-sm-usecases {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.tp-sm-usecase {
  display: flex;
  gap: 16px;
  padding: 20px 22px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--tp-sm-border);
}

.tp-sm-usecase-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 800;
  color: var(--tp-sm-accent);
  background: rgba(99, 102, 241, 0.1);
}

.tp-sm-usecase-title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--tp-sm-text);
}

.tp-sm-usecase-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--tp-sm-muted);
}

/* —— Spec strip —— */
.tp-sm-specs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.tp-sm-spec {
  text-align: center;
  padding: 18px 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--tp-sm-border);
}

.tp-sm-spec-value {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--tp-sm-accent);
  letter-spacing: -0.02em;
}

.tp-sm-spec-label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--tp-sm-muted);
}

/* —— Bottom CTA —— */
.tp-sm-bottom-cta {
  max-width: var(--tp-sm-content-max);
  margin: 0 auto 64px;
  padding: 0 24px;
}

.tp-sm-bottom-cta-inner {
  padding: 36px 32px;
  border-radius: 18px;
  text-align: center;
  background: linear-gradient(135deg, var(--tp-sm-accent) 0%, var(--tp-sm-accent-soft) 48%, var(--tp-sm-violet) 100%);
  color: #fff;
}

.tp-sm-bottom-cta-title {
  margin: 0 0 8px;
  font-size: 1.35rem;
  font-weight: 800;
}

.tp-sm-bottom-cta-desc {
  margin: 0 0 20px;
  font-size: 15px;
  opacity: 0.92;
}

.tp-sm-bottom-cta .landing-btn {
  background: #fff;
  color: var(--tp-sm-accent);
  border-color: transparent;
}

.tp-sm-bottom-cta .landing-btn:hover {
  background: rgba(255, 255, 255, 0.92);
}

@media (max-width: 900px) {
  .tp-sm-hero-inner {
    grid-template-columns: 1fr;
  }

  .tp-sm-features {
    grid-template-columns: 1fr;
  }

  .tp-sm-usecases {
    grid-template-columns: 1fr;
  }

  .tp-sm-specs {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .tp-sm-specs {
    grid-template-columns: 1fr;
  }
}