/* 官网各版块 / Website sections. */
.hero {
  padding: 56px 0 72px;
}
.hero-grid {
  display: grid;
  gap: 40px;
  align-items: center;
}
.eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--txy-brand-soft);
  color: var(--txy-brand-soft-text);
  font-size: 13px;
  font-weight: 600;
}
.hero h1 {
  font-size: clamp(34px, 6vw, 56px);
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
}
.lead {
  margin: 20px 0 28px;
  font-size: 18px;
  color: var(--txy-text-secondary);
  max-width: 34em;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 20px 0 0;
  font-size: 14px;
  color: var(--txy-text-muted);
}
@media (min-width: 960px) {
  .hero {
    padding: 88px 0 104px;
  }
  .hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 64px;
  }
}

.section {
  padding: 72px 0;
}
.section-muted {
  background: var(--txy-surface-muted);
}
.section-title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  letter-spacing: -0.3px;
}
.section-lead {
  margin: 12px 0 36px;
  font-size: 17px;
  color: var(--txy-text-secondary);
  max-width: 40em;
}
@media (min-width: 960px) {
  .section {
    padding: 104px 0;
  }
}

/* 卡片 / cards */
.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
@media (min-width: 720px) {
  .cards-2,
  .cards-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .cards-5 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1000px) {
  .cards-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .cards-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}
.card {
  padding: 24px;
  border-radius: var(--radius);
  background: var(--txy-surface);
  border: 1px solid var(--txy-border);
}
.card h3 {
  font-size: 18px;
  font-weight: 600;
}
.card p {
  margin: 8px 0 0;
  color: var(--txy-text-secondary);
  font-size: 15px;
}
.card-plain {
  background: transparent;
  border: 0;
  border-top: 2px solid var(--txy-brand);
  border-radius: 0;
  padding: 16px 0 0;
}
.card-icon {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  border-radius: 12px;
  background: var(--txy-brand-soft);
  color: var(--txy-brand-soft-text);
}
.card-icon-warn {
  background: var(--txy-warning-soft);
  color: var(--txy-warning);
}
.card-icon svg,
.cycle-icon svg,
.wall svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.feature-grid {
  display: grid;
  gap: 32px;
  align-items: start;
}
@media (min-width: 1000px) {
  .feature-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
  }
}
.planned {
  margin-top: 32px;
  padding: 20px 24px;
  border-radius: var(--radius);
  border: 1px dashed var(--txy-border-strong);
}
.planned ul {
  margin: 8px 0 0;
  padding-left: 1.2em;
  color: var(--txy-text-secondary);
}
.pill {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 13px;
  background: var(--txy-info-soft);
  color: var(--txy-info);
}
/* 英文标题词长，字号小一档，免得首屏折成四行 / English headlines run longer */
:root[lang="en"] .hero h1 {
  font-size: clamp(32px, 5vw, 48px);
}
/* 四张「我们做什么」卡片 / four service cards */
@media (min-width: 720px) {
  .cards-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (min-width: 1100px) {
  .cards-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
/* 案例要点：品牌色勾号 / case bullet points */
.case-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.case-points li {
  position: relative;
  padding-left: 30px;
  color: var(--txy-text);
}
.case-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--txy-brand);
}
/* 用两条边画对勾，不依赖字体里的 ✓ 字形 / CSS check mark, independent of fonts */
.case-points li::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 7px;
  width: 6px;
  height: 10px;
  border: solid var(--txy-on-brand);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}