/* 耳机解决方案专页样式（复用 main.css 的设计令牌） */

.sol-hero {
  position: relative;
  overflow: hidden;
  background: var(--dark-900);
  border-bottom: 1px solid var(--line-dark);
}

.sol-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(120% 80% at 85% 0%, #000 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(120% 80% at 85% 0%, #000 10%, transparent 70%);
  pointer-events: none;
}

.sol-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(32px, 4vw, 60px);
  padding-block: clamp(44px, 5.5vw, 78px);
}

.sol-hero h1 { margin: 20px 0; color: #fff; font-size: 3rem; line-height: 1.2; }
.sol-hero__lead { font-size: 1.04rem; color: #a9b4c2; max-width: 560px; }
.sol-hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

.sol-hero__specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 30px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.sol-hero__specs li { display: grid; gap: 2px; padding: 13px 16px; background: rgba(12, 14, 17, 0.86); }
.sol-hero__specs strong { font-family: var(--font-mono); font-size: 1.05rem; color: #fff; }
.sol-hero__specs span { font-size: 0.78rem; color: var(--text-inv-muted); }

.sol-hero__media {
  position: relative;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: #0d1013;
}
.sol-hero__media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.sol-hero__media figcaption {
  padding: 14px 18px;
  border-top: 1px solid var(--line-dark);
  font-size: 0.82rem;
  color: var(--text-inv-muted);
}

/* 应用场景 */
.scenarios {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.scenario {
  display: grid;
  gap: 12px;
  padding: clamp(22px, 2.4vw, 30px);
  background: var(--light-000);
  border: 1px solid var(--line-light);
  border-radius: var(--radius-card);
}
.scenario__head { display: flex; align-items: center; gap: 12px; }
.scenario__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-control);
  background: var(--teal-soft);
  color: var(--teal);
}
.scenario h3 { font-size: 1.08rem; }
.scenario p { font-size: 0.93rem; color: var(--text-body); }
.scenario .card__list { margin-top: 4px; }

/* 能力支柱 */
.pillars {
  display: grid;
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.pillar {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) minmax(0, 1.15fr);
  gap: clamp(16px, 2vw, 32px);
  align-items: start;
  padding: clamp(20px, 2.4vw, 30px);
  background: var(--dark-850);
}
.pillar__index {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  color: var(--dark-500);
  line-height: 1;
}
.pillar h3 { font-size: 1.1rem; }
.pillar p { font-size: 0.93rem; color: var(--text-inv-muted); }
.pillar:hover { background: var(--dark-800); }
.pillar:hover .pillar__index { color: var(--accent); }

/* 细分方案 */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(28px, 3.4vw, 56px);
  align-items: center;
}
.split + .split { margin-top: clamp(48px, 6vw, 92px); }
.split--reverse .split__media { order: 2; }

.split__media {
  margin: 0;
  border: 1px solid var(--line-light);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: #0d1013;
}
.split__media img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.split__media figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--line-light);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.section--dark .split__media { border-color: var(--line-dark); }
.section--dark .split__media figcaption { border-color: var(--line-dark); color: var(--text-inv-muted); }

.split__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}
.split__body h3 { margin: 12px 0 14px; font-size: 1.6rem; }
.split__body > p { color: var(--text-body); }
.section--dark .split__body > p { color: var(--text-inv-muted); }
.split__note { margin-top: 14px; color: var(--text-body); }
.section--dark .split__note { color: var(--text-inv-muted); }

.param-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 22px 0 0;
  background: var(--line-light);
  border: 1px solid var(--line-light);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.section--dark .param-list { background: var(--line-dark); border-color: var(--line-dark); }
.param-list > div { display: grid; gap: 3px; padding: 14px 16px; background: var(--light-000); }
.section--dark .param-list > div { background: var(--dark-850); }
.param-list dt { font-size: 0.78rem; color: var(--text-muted); }
.section--dark .param-list dt { color: var(--text-inv-muted); }
.param-list dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-strong);
}
.section--dark .param-list dd { color: #fff; }

.flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin-top: 26px;
  background: var(--line-light);
  border: 1px solid var(--line-light);
  border-radius: var(--radius-card);
  overflow: hidden;
}
.section--dark .flow { background: var(--line-dark); border-color: var(--line-dark); }
.flow li {
  display: grid;
  gap: 8px;
  padding: 18px;
  background: var(--light-000);
  font-size: 0.88rem;
  color: var(--text-body);
}
.section--dark .flow li { background: var(--dark-850); color: var(--text-inv-muted); }
.flow li span {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent);
}

/* 案例条与结尾 CTA */
.case-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }

@media (max-width: 1024px) {
  .sol-hero__inner { grid-template-columns: minmax(0, 1fr); }
  .sol-hero h1 { font-size: 2.4rem; }
  .pillar { grid-template-columns: 60px minmax(0, 1fr); }
  .pillar__body { grid-column: 2; }
  .pillar p { grid-column: 2; }
  .split, .split--reverse { grid-template-columns: minmax(0, 1fr); }
  .split--reverse .split__media { order: 0; }
  .case-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
  .scenarios { grid-template-columns: minmax(0, 1fr); }
  .case-strip { grid-template-columns: minmax(0, 1fr); }
  .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .sol-hero h1 { font-size: 1.95rem; }
  .sol-hero__specs { grid-template-columns: minmax(0, 1fr); }
  .param-list { grid-template-columns: minmax(0, 1fr); }
  .pillar { grid-template-columns: 44px minmax(0, 1fr); gap: 14px; }
  .flow { grid-template-columns: minmax(0, 1fr); }
}

/* 方案入口的样式已移到 main.css（首页与本页共用） */
@media (max-width: 1024px) {
  .solution-teaser { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}