/* ==========================================================================
   home.css —— 只作用于首页（index.html）
   改首页样式不会影响其它栏目页面。
   ========================================================================== */

/* ---------- 1. 首屏轮播 ---------- */
.hero { position: relative; height: 100vh; min-height: 620px; overflow: hidden; }
.hero-slide {
  position: absolute; inset: 0; opacity: 0; visibility: hidden;
  transition: opacity 0.9s ease, visibility 0.9s ease;
  display: flex; align-items: center;
}
.hero-slide.is-active { opacity: 1; visibility: visible; }
.hero-slide__bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transform: scale(1.04);
}
/* 三张幻灯片的背景：深蓝渐变 + 光斑，不使用占位图 */
.hero-slide__bg--1 { background-image: radial-gradient(900px 520px at 78% 22%, rgba(0, 168, 112, 0.32), transparent 62%), linear-gradient(135deg, #0b236e 0%, #10306f 52%, #0a1c4f 100%); }
.hero-slide__bg--2 { background-image: radial-gradient(900px 520px at 20% 80%, rgba(0, 168, 112, 0.28), transparent 62%), linear-gradient(135deg, #0a1f5e 0%, #14387c 55%, #0b236e 100%); }
.hero-slide__bg--3 { background-image: radial-gradient(900px 520px at 72% 78%, rgba(26, 92, 181, 0.42), transparent 62%), linear-gradient(135deg, #08184a 0%, #0e2a68 50%, #123a80 100%); }
.hero-slide::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(6, 17, 60, 0.55) 0%, rgba(6, 17, 60, 0.28) 45%, rgba(6, 17, 60, 0.1) 100%);
}
.hero-slide .container { position: relative; z-index: 3; }
.hero-inner { display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 56px; align-items: center; }
.hero-media {
  margin: 0; background: #fff; border-radius: var(--radius-lg); padding: 18px;
  box-shadow: 0 30px 70px rgba(3, 12, 40, 0.45);
  opacity: 0; transform: translateY(24px); transition: all 0.8s ease 0.3s;
}
.hero-media img { width: 100%; height: auto; max-height: 400px; object-fit: contain; }
.hero-slide.is-active .hero-media { opacity: 1; transform: none; }
.hero-kicker {
  display: inline-block; margin-bottom: 16px; padding: 6px 14px; border-radius: 999px;
  background: rgba(255, 255, 255, 0.16); color: #fff; font-size: 13px; letter-spacing: 0.5px;
  opacity: 0; transform: translateY(20px); transition: all 0.8s ease 0.1s;
}
.hero-slide.is-active .hero-kicker { opacity: 1; transform: none; }
.hero-content { max-width: 680px; color: #fff; }
.hero-content h1, .hero-content .hero-heading {
  font-size: 46px; line-height: 1.3; font-weight: 700; letter-spacing: -0.5px;
  opacity: 0; transform: translateY(26px); transition: all 0.8s ease 0.15s;
}
.hero-content .hero-heading { margin: 0; color: inherit; }
.hero-content p { margin-top: 20px; font-size: 19px; color: rgba(255, 255, 255, 0.85); opacity: 0; transform: translateY(22px); transition: all 0.8s ease 0.3s; }
.hero-content .hero-actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; opacity: 0; transform: translateY(18px); transition: all 0.8s ease 0.45s; }
.hero-slide.is-active .hero-content h1,
.hero-slide.is-active .hero-content .hero-heading,
.hero-slide.is-active .hero-content p,
.hero-slide.is-active .hero-content .hero-actions { opacity: 1; transform: none; }

.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 50px; height: 50px; border-radius: 50%; background: rgba(255, 255, 255, 0.16);
  color: #fff; font-size: 18px; backdrop-filter: blur(4px); transition: var(--transition);
}
.hero-arrow:hover { background: var(--primary); }
.hero-arrow--prev { left: 28px; }
.hero-arrow--next { right: 28px; }

.hero-dots { position: absolute; bottom: 42px; left: 50%; transform: translateX(-50%); z-index: 5; display: flex; gap: 10px; }
.hero-dot { width: 34px; height: 4px; border-radius: 2px; background: rgba(255, 255, 255, 0.4); transition: var(--transition); }
.hero-dot.is-active { background: #fff; width: 52px; }

/* ---------- 2. 数据条 ---------- */
.stats { position: relative; z-index: 10; margin-top: -70px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-card {
  background: #fff; border-radius: var(--radius-lg); padding: 28px 20px; text-align: center;
  box-shadow: var(--shadow); border: 1px solid var(--border);
}
.stat-card .num { font-size: 38px; font-weight: 800; color: var(--primary); line-height: 1.1; }
.stat-card .label { margin-top: 6px; font-size: 15px; font-weight: 600; }
.stat-card .desc { font-size: 13px; color: var(--text-lighter); }

/* ---------- 3. 核心业务 ---------- */
.biz-card { text-align: center; padding: 36px 24px; }
.biz-card .icon {
  width: 66px; height: 66px; margin: 0 auto 18px; border-radius: 16px;
  background: var(--primary-light); color: var(--primary); font-size: 28px;
  display: flex; align-items: center; justify-content: center; transition: var(--transition);
}
.card:hover .biz-card .icon { background: var(--primary); color: #fff; }
.biz-card h3 { font-size: 18px; margin-bottom: 8px; }
.biz-card p { color: var(--text-light); font-size: 14px; }

/* ---------- 4. 公司简介 ---------- */
.about-block { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.about-block img { border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.about-block h2 { font-size: 32px; font-weight: 700; margin-bottom: 18px; }
.about-block .lead { color: var(--text-light); margin-bottom: 16px; }
.about-points { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 24px 0 30px; }
.about-points div { background: var(--bg-gray); border-radius: 10px; padding: 14px 16px; font-size: 14px; }
.about-points strong { display: block; color: var(--primary); font-size: 20px; }

/* ---------- 5. 合作客户跑马灯 ---------- */
.logo-marquee { overflow: hidden; position: relative; }
.logo-marquee::before, .logo-marquee::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 90px; z-index: 2;
}
.logo-marquee::before { left: 0; background: linear-gradient(90deg, #fff, rgba(255, 255, 255, 0)); }
.logo-marquee::after { right: 0; background: linear-gradient(270deg, #fff, rgba(255, 255, 255, 0)); }
.logo-track { display: flex; gap: 32px; width: max-content; animation: marquee 26s linear infinite; }
.logo-track img { width: 180px; height: 68px; object-fit: contain; border-radius: 10px; }
.logo-marquee:hover .logo-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ---------- 6. 页面通用：产品/平台速览 ---------- */
.mini-card { padding: 26px; }
.mini-card .idx { font-size: 30px; font-weight: 800; color: rgba(26, 92, 181, 0.18); }

/* ---------- 7. 响应式 ---------- */
@media (max-width: 1080px) {
  .hero-content h1, .hero-content .hero-heading { font-size: 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .about-block { grid-template-columns: 1fr; gap: 32px; }
  .hero-inner { grid-template-columns: 1fr; gap: 30px; }
  .hero-media { max-width: 520px; }
}

@media (max-width: 720px) {
  .hero { min-height: 560px; }
  .hero-content h1, .hero-content .hero-heading { font-size: 30px; }
  .hero-content p { font-size: 16px; }
  .hero-media { display: none; }
  .hero-kicker { font-size: 12px; }
  .hero-arrow { display: none; }
  .stats { margin-top: -40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-card { padding: 20px 12px; }
  .stat-card .num { font-size: 28px; }
  .about-points { grid-template-columns: 1fr; }
}