/* ============================================================
   海豚回声 · 首页专属样式
   home.css
   ============================================================ */

/* ══════════ ① Hero ══════════ */
.hero { padding: var(--sp-6) 0 var(--sp-5); }
.hero-grid {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--sp-3);
  display: grid; gap: var(--sp-5); align-items: center;
}
@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.35fr .8fr; gap: var(--sp-6); }
}

.hero-copy h1 { font-size: 34px; margin-bottom: var(--sp-3); }
@media (min-width: 768px) { .hero-copy h1 { font-size: 44px; line-height: 1.24; } }

.hero-lead {
  font-size: 1.06rem; color: var(--c-muted);
  max-width: 460px; margin-bottom: var(--sp-4); line-height: 1.85;
}
.hero-lead strong { color: var(--c-text); font-weight: 600; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-actions .btn { flex: 1 1 auto; }
@media (min-width: 560px) { .hero-actions .btn { flex: 0 0 auto; } }

.hero-note {
  margin: var(--sp-3) 0 0; font-size: var(--fs-sm); color: var(--c-faint);
  display: flex; align-items: center; gap: 7px;
}
.hero-note::before {
  content: ''; width: 13px; height: 13px; flex-shrink: 0;
  border: 1.5px solid var(--c-primary-soft); border-radius: 3px;
  background:
    linear-gradient(var(--c-primary-soft), var(--c-primary-soft)) center / 6px 1.5px no-repeat,
    linear-gradient(var(--c-primary-soft), var(--c-primary-soft)) center / 1.5px 6px no-repeat;
}

.hero-visual {
  display: flex; flex-direction: column; align-items: center; gap: 14px;
  justify-self: center;
}
.hero-visual .sonar { transform: scale(1.5); margin: var(--sp-5) 0; }
.hero-visual-cap {
  margin: 0; font-size: var(--fs-sm); color: var(--c-primary-soft);
  letter-spacing: 1.6px;
}

/* ══════════ ② 年龄阶段卡 ══════════ */
.stage-grid { display: grid; gap: var(--sp-2); }
@media (min-width: 640px) { .stage-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .stage-grid { grid-template-columns: repeat(4, 1fr); } }

.stage-card {
  display: block; padding: var(--sp-3);
  background: var(--c-card); border: 1px solid var(--c-line);
  border-radius: var(--radius); text-decoration: none;
  position: relative; overflow: hidden;
  transition: border-color .18s, box-shadow .18s, transform .18s;
}
.stage-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--c-primary-soft); opacity: .5; transition: opacity .18s;
}
.stage-card:hover {
  border-color: var(--c-primary-soft); box-shadow: var(--shadow);
  transform: translateY(-2px); text-decoration: none;
}
.stage-card:hover::before { opacity: 1; }

.stage-age {
  display: block; font-size: var(--fs-xs); color: var(--c-primary);
  letter-spacing: .6px; margin-bottom: 5px; font-variant-numeric: tabular-nums;
}
.stage-title {
  display: block; font-size: 1.08rem; color: var(--c-ink);
  margin-bottom: 8px; font-weight: 600;
}
.stage-card p {
  margin: 0; font-size: var(--fs-sm); color: var(--c-muted); line-height: 1.7;
}

/* ══════════ ③ 三类意图入口 ══════════ */
.intent-grid { display: grid; gap: var(--sp-2); }
@media (min-width: 860px) { .intent-grid { grid-template-columns: repeat(3, 1fr); } }

.intent-card {
  display: flex; flex-direction: column;
  padding: var(--sp-4) var(--sp-3);
  background: var(--c-card); border: 1px solid var(--c-line);
  border-radius: var(--radius-lg); text-decoration: none;
  transition: border-color .18s, box-shadow .18s, transform .18s;
}
.intent-card:hover {
  border-color: var(--c-primary-soft); box-shadow: var(--shadow-md);
  transform: translateY(-3px); text-decoration: none;
}

.intent-icon {
  display: flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; margin-bottom: var(--sp-2);
  border-radius: 11px; background: var(--c-primary-wash); color: var(--c-primary);
}
.intent-icon svg { width: 21px; height: 21px; }

.intent-card h3 { margin: 0 0 8px; font-size: 1.08rem; }
.intent-card p { margin: 0 0 var(--sp-3); font-size: var(--fs-sm); color: var(--c-muted); flex-grow: 1; }
.intent-more {
  font-size: var(--fs-sm); color: var(--c-primary); font-weight: 500;
  display: flex; align-items: center; gap: 6px;
}
.intent-card:hover .intent-more { gap: 10px; }

/* ══════════ ④ 信任与边界 ══════════ */
.trust-grid { display: grid; gap: var(--sp-4); }
@media (min-width: 860px) {
  .trust-grid { grid-template-columns: .85fr 1.15fr; gap: var(--sp-6); align-items: start; }
}

.trust-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 2px; }
.trust-list li {
  padding: 15px 0 15px 32px; margin: 0; position: relative;
  font-size: var(--fs-sm); color: var(--c-text);
  border-bottom: 1px solid var(--c-line);
  line-height: 1.75;
}
.trust-list li:last-child { border-bottom: none; }
.trust-list li::before {
  content: ''; position: absolute; left: 5px; top: 22px;
  width: 11px; height: 6px;
  border-left: 2px solid var(--c-primary);
  border-bottom: 2px solid var(--c-primary);
  transform: rotate(-45deg);
}
.trust-list strong { color: var(--c-ink); font-weight: 600; }

/* ══════════ ⑤ 危机条（降噪版） ══════════ */
.signal-strip {
  display: flex; flex-wrap: wrap; align-items: center; gap: 12px;
  justify-content: space-between;
  max-width: var(--maxw); margin: 0 auto;
  padding: 18px var(--sp-3);
  background: var(--c-signal-bg);
  border: 1px solid var(--c-signal-line);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: background .18s;
}
.signal-strip:hover { background: #F7E9DC; text-decoration: none; }
.signal-strip strong {
  display: block; color: #8A4E23; font-size: .98rem; margin-bottom: 3px;
}
.signal-strip span { font-size: var(--fs-sm); color: #9A6440; }
.signal-strip-go {
  font-size: var(--fs-sm); font-weight: 600; color: var(--c-signal);
  white-space: nowrap;
}