/* 中凯林晟 - 自定义样式与交互 */

.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

[data-icon] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  background-color: currentColor;
}

html { scroll-behavior: smooth; scroll-padding-top: 6rem; }

body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; }

/* ---- 滚动渐入动画 ---- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}
.reveal.reveal-in {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-delay="1"] { transition-delay: 0.08s; }
.reveal[data-delay="2"] { transition-delay: 0.16s; }
.reveal[data-delay="3"] { transition-delay: 0.24s; }
.reveal[data-delay="4"] { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---- 导航栏毛玻璃 ---- */
#zk-navbar.is-scrolled {
  box-shadow: 0 4px 24px -8px rgba(15, 23, 42, 0.12);
}

/* ---- 移动端菜单展开动画 ---- */
#zk-mobile-menu.menu-open {
  animation: zk-slide-down 0.25s ease-out;
}
@keyframes zk-slide-down {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- Hero 设备插图浮动 ---- */
@keyframes zk-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.zk-hero-illustration { animation: zk-float 6s ease-in-out infinite; }

/* ---- 光晕脉冲 ---- */
@keyframes zk-pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.04); }
}
.zk-pulse { animation: zk-pulse 4s ease-in-out infinite; }

/* ---- 卡片悬停强化 ---- */
.zk-card-hover { transition: transform 0.3s cubic-bezier(0.16,1,0.3,1), box-shadow 0.3s ease, border-color 0.3s ease; }

/* ---- 数字滚动 ---- */
.zk-stat { font-variant-numeric: tabular-nums; }

/* ---- 表单输入 ---- */
.zk-input {
  width: 100%;
  height: 2.75rem;
  padding: 0 0.875rem;
  border-radius: var(--zk-radius-md);
  border: 1px solid var(--zk-border);
  background: var(--zk-card);
  color: var(--zk-foreground);
  font-size: 0.875rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.zk-input:focus {
  outline: none;
  border-color: var(--zk-primary);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.15);
}
.zk-input.input-error { border-color: var(--zk-state-error); }
.zk-input.input-error:focus { box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15); }

textarea.zk-input {
  height: auto;
  min-height: 7.5rem;
  padding: 0.625rem 0.875rem;
  line-height: 1.6;
  resize: vertical;
}

.zk-field-error {
  display: none;
  margin-top: 0.375rem;
  font-size: 0.75rem;
  color: var(--zk-state-error);
}
.zk-field-error.show { display: block; }

/* ---- 提交按钮 loading ---- */
.zk-btn-loading { position: relative; pointer-events: none; opacity: 0.75; }
.zk-btn-loading::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1.1rem;
  height: 1.1rem;
  margin: -0.55rem 0 0 -0.55rem;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: zk-spin 0.6s linear infinite;
}
@keyframes zk-spin { to { transform: rotate(360deg); } }

/* ---- Toast 提示 ---- */
#zk-toast {
  position: fixed;
  top: 5.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(-1rem);
  z-index: 100;
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--zk-radius-md);
  background: var(--zk-foreground);
  color: var(--zk-background);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: 0 12px 32px -8px rgba(15, 23, 42, 0.3);
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
  max-width: calc(100vw - 2rem);
}
#zk-toast.show {
  display: inline-flex;
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
#zk-toast.zk-toast-error { background: var(--zk-state-error); color: #fff; }
#zk-toast.zk-toast-success { background: var(--zk-state-success); color: #fff; }

/* ---- 返回顶部按钮 ---- */
#zk-back-to-top { display: none; }
#zk-back-to-top.show { display: inline-flex; }

/* ---- FAQ 折叠 ---- */
.zk-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.zk-faq-item .zk-faq-icon { transition: transform 0.3s ease; }
.zk-faq-item.zk-faq-open .zk-faq-icon { transform: rotate(45deg); }

/* ---- 产品标签 ---- */
.zk-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--zk-primary-light);
  color: var(--zk-primary);
}

/* ---- 选中文字色 ---- */
::selection { background: rgba(8, 145, 178, 0.2); color: var(--zk-foreground); }