/* =============================================================
   index.css — 网站首页专属样式（与 base.css 分离，零内联）
   ============================================================= */

/* ---------- 首屏轮播 / Hero ---------- */
.hero {
  position: relative;
  background: var(--grad-hero);
  color: #fff;
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 420px at 82% 18%, rgba(255, 255, 255, 0.16), transparent 60%),
    radial-gradient(700px 380px at 12% 90%, rgba(74, 155, 255, 0.28), transparent 60%);
  pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.1fr 0.9fr;
  gap: 40px; align-items: center;
  padding: 86px 0 92px;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 7px 16px; border-radius: 999px;
  font-size: 13px; letter-spacing: 1px; margin-bottom: 20px;
}
.hero h1 { font-size: clamp(30px, 4.4vw, 52px); font-weight: 800; line-height: 1.18; }
.hero h1 .hl { color: #ffd0a8; }
.hero p.lead { margin-top: 18px; font-size: 17px; color: rgba(255, 255, 255, 0.86); max-width: 540px; }
.hero-actions { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero .btn-ghost { background: rgba(255, 255, 255, 0.10); border-color: rgba(255, 255, 255, 0.35); color: #fff; }
.hero .btn-ghost:hover { background: rgba(255, 255, 255, 0.2); color: #fff; }

.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: 26px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
  display: grid; place-items: center;
  overflow: hidden;
}
.hero-visual svg { width: 78%; height: 78%; }
.hero-visual .badge {
  position: absolute; bottom: 18px; left: 18px;
  background: rgba(0, 0, 0, 0.28); backdrop-filter: blur(6px);
  padding: 8px 14px; border-radius: 12px; font-size: 13px;
}

/* ---------- 数据条 ---------- */
.stats { background: var(--c-surface); border-bottom: 1px solid var(--c-border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { text-align: center; padding: 34px 16px; }
.stat .num { font-size: 38px; font-weight: 800; color: var(--c-primary); line-height: 1; }
.stat .num .unit { font-size: 18px; color: var(--c-accent-strong); margin-left: 2px; }
.stat .label { margin-top: 8px; color: var(--c-text-soft); font-size: 14px; }

/* ---------- 产品分类 ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cat-card { padding: 26px 22px; }
.cat-card .cat-ico {
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--grad-accent); color: #fff;
  display: grid; place-items: center; margin-bottom: 16px;
}
.cat-card .cat-ico svg { width: 26px; height: 26px; }
.cat-card h3 { font-size: 17px; margin-bottom: 8px; }
.cat-card p { color: var(--c-text-soft); font-size: 14px; }

/* ---------- 首页「产品展示」网格：锁死 4 列 × 2 行 = 8 个 ---------- */
.home-products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }

/* ---------- 首页两栏：新闻 + 侧栏 ---------- */
.home-split { display: grid; grid-template-columns: 1.7fr 1fr; gap: 30px; }
.news-row {
  display: flex; gap: 16px; padding: 16px 0;
  border-bottom: 1px dashed var(--c-border);
}
.news-row:last-child { border-bottom: none; }
.news-row .date {
  flex-shrink: 0; width: 64px; text-align: center;
  border-right: 2px solid var(--c-border); padding-right: 12px;
}
.news-row .date .d { font-size: 22px; font-weight: 800; color: var(--c-primary); }
.news-row .date .y { font-size: 12px; color: var(--c-text-mute); }
.news-row h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.news-row h4 a:hover { color: var(--c-accent-strong); }
.news-row p { font-size: 13px; color: var(--c-text-mute); }

.side-card { padding: 24px; }
.side-card h3 { font-size: 16px; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.side-card h3::before { content: ""; width: 4px; height: 16px; border-radius: 3px; background: var(--grad-accent); }
.contact-mini li { display: flex; gap: 10px; padding: 8px 0; color: var(--c-text-soft); font-size: 14px; }
.contact-mini .ico { color: var(--c-primary); flex-shrink: 0; }

/* ---------- CTA ---------- */
.cta {
  background: var(--grad-hero); color: #fff; border-radius: 22px;
  padding: 46px 40px; text-align: center; position: relative; overflow: hidden;
}
.cta::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 300px at 80% 20%, rgba(255,255,255,0.14), transparent 60%);
  pointer-events: none;
}
.cta h2 { position: relative; font-size: 26px; font-weight: 800; }
.cta p { position: relative; margin-top: 10px; color: rgba(255,255,255,0.85); }
.cta .btn { position: relative; margin-top: 22px; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { max-width: 360px; margin: 0 auto; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .home-products-grid { grid-template-columns: repeat(2, 1fr); }
  .home-split { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .cat-grid { grid-template-columns: 1fr; }
  .home-products-grid { grid-template-columns: 1fr; }
  .cta { padding: 34px 22px; }
}