:root {
  --primary: #5B8C6A;
  --primary-dark: #3D6B4A;
  --primary-light: #A8D5B5;
  --secondary: #8E7CC3;
  --accent: #D4A853;
}

/* ===== com2 — 现代商务浅色风 ===== */

html {
  scroll-behavior: smooth;
}

body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 顶部彩色装饰条卡片 */
.deco-card {
  position: relative;
  background: #ffffff;
  border: 1px solid #eef0f4;
  border-radius: 14px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.deco-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary);
}

.deco-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px -18px rgba(29, 78, 216, 0.28);
}

/* 强调标题 */
.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary);
}

.heading-bold {
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #0f172a;
}

/* 滚动进场动画 */
@keyframes com2-rise {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

.com2-reveal {
  opacity: 0;
}

.com2-reveal.is-visible {
  animation: com2-rise 0.65s cubic-bezier(0.22, 1, 0.36, 1) both;
}

/* 导航栏滚动态 */
header.scrolled {
  box-shadow: 0 6px 24px -14px rgba(15, 23, 42, 0.25);
}

/* 链接下划线动效 */
.link-underline {
  position: relative;
}

.link-underline::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
}

.link-underline:hover::after,
.link-underline.is-active::after {
  width: 100%;
}

/* FAQ 折叠 */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.35s ease, opacity 0.35s ease, padding 0.35s ease;
}

.faq-icon {
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

@media print {
  nav, footer, .no-print { display: none !important; }
  body { font-size: 12pt; color: #000; }
}