/* ===== 0065 微扑克 三端同步 · 全局样式 ===== */
:root {
  --brand: #4f46e5;
  --accent: #0891b2;
  --ink: #0f172a;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--ink);
}

/* 渐变文字 */
.gradient-text {
  background-image: linear-gradient(90deg, #4f46e5, #0891b2);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* 网格背景（深色区块用） */
.bg-grid {
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 48px 48px;
}

/* 导航毛玻璃 */
.nav-blur {
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 6px 28px rgba(79,70,229,.10);
}

/* 卡片 hover */
.card-hover {
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.card-hover:hover {
  transform: translateY(-10px);
  box-shadow: 0 24px 52px rgba(79,70,229,.14);
  border-color: #c7d2fe;
}

/* 按钮辉光 */
.btn-glow {
  box-shadow: 0 10px 28px rgba(8,145,178,.38);
  transition: transform .3s ease, box-shadow .3s ease;
}
.btn-glow:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px rgba(8,145,178,.52);
}

/* 入场动画 */
.fade-in { animation: fadeUp .9s ease both; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
.delay-1 { animation-delay: .14s; }
.delay-2 { animation-delay: .28s; }

/* FAQ 手风琴 */
.faq-item {
  border: 1px solid #e0e7ff;
  border-radius: 16px;
  overflow: hidden;
  background: #fff;
  transition: box-shadow .3s ease, border-color .3s ease;
}
.faq-item.active { border-color: #6366f1; box-shadow: 0 14px 34px rgba(79,70,229,.12); }
.faq-question {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-weight: 600;
  color: #0f172a;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .45s ease, padding .45s ease;
  color: #475569;
  line-height: 1.8;
}
.faq-answer-inner { padding: 0 24px 22px; }
.faq-item.active .faq-answer { max-height: 440px; }
.faq-icon {
  flex: none;
  width: 28px; height: 28px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: #eef2ff;
  color: #4f46e5;
  transition: transform .35s ease, background .35s ease, color .35s ease;
}
.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: #4f46e5;
  color: #fff;
}

/* ===== Testimonials 轮播 ===== */
.slider-viewport { position: relative; overflow: hidden; }
.slider-track {
  display: flex;
  transition: transform .6s cubic-bezier(.4,0,.2,1);
}
.slider-slide {
  flex: 0 0 100%;
  padding: 0 4px;
  box-sizing: border-box;
}
.dot {
  width: 10px; height: 10px;
  border-radius: 999px;
  background: #cbd5e1;
  cursor: pointer;
  transition: all .3s ease;
}
.dot.active { width: 28px; background: linear-gradient(90deg, #4f46e5, #0891b2); }

/* 平台悬浮徽章 */
.badge-float {
  animation: floatY 4s ease-in-out infinite;
}
@keyframes floatY {
  0%,100% { transform: translateY(0); }
  50%     { transform: translateY(-10px); }
}