/* ============================================================
   云犀云 cloudrhino.cn — 首页样式优化 (custom.css)
   2026-08-19 · 覆盖式优化，不破坏模板结构
   ============================================================ */

/* ---------- 全局基础 ---------- */
html { scroll-behavior: smooth; }
body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Roboto, Arial, sans-serif;
}
::selection { background: #007bfc; color: #fff; }

/* 美化滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #f1f3f6; }
::-webkit-scrollbar-thumb { background: #c3ccd9; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #007bfc; }

/* ---------- 导航栏：顶部透明，滚动后仅header白底+阴影（内层全透明） ---------- */
header.header-main, header.header-main nav.navbar, .navbar.navbar-expand-lg {
  background: transparent !important;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: none !important;
  border: none !important;
}
header.header-main.crhino-scrolled {
  background: #fff !important;
  box-shadow: 0 2px 12px rgba(15, 34, 68, 0.12) !important;
}
header.header-main.crhino-scrolled nav.navbar,
header.header-main.crhino-scrolled .navbar.navbar-expand-lg {
  background: transparent !important;
  box-shadow: none !important;
}
.navbar .nav-link {
  position: relative;
  transition: color .25s ease;
}
.navbar .nav-link::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 2px;
  width: 0; height: 2px;
  background: linear-gradient(90deg, #007bfc, #38bdf8);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: width .28s ease;
}
.navbar .nav-link:hover::after,
.navbar .nav-item.active .nav-link::after { width: 70%; }
.navbar-brand img { transition: transform .3s ease; }
.navbar-brand:hover img { transform: scale(1.04); }

/* 登录/注册按钮 */
.navbar .btn, .navbar a.btn {
  border-radius: 999px !important;
  transition: all .25s ease;
}
.navbar a.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(0,123,252,.35); }
/* 登录/注册按钮：无描边，蓝底渐变+白字 */
.navbar a.btn, .navbar .login, .navbar .signup,
.login.iq-button, .signup.iq-button, a.login, a.signup {
  color: #fff !important;
  border: none !important;
  outline: none !important;
  box-shadow: none;
}

/* ---------- 主视觉 Slider 文字 ---------- */
.rs-layer.textgyreadventor { letter-spacing: 1px; }
.rs-layer .bluetext {
  background: linear-gradient(92deg, #007bfc 10%, #38bdf8 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 主按钮（立即登录等） */
.iq-button, .rev-btn.iq-button {
  border-radius: 999px !important;
  background: linear-gradient(135deg, #007bfc, #0059d6) !important;
  box-shadow: 0 8px 22px rgba(0,123,252,.32);
  transition: all .3s ease !important;
}
.iq-button:hover, .rev-btn.iq-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(0,123,252,.45);
}

/* ---------- 服务卡片（icon-box / 特性区） ---------- */
.iq-icon-box, .icon-box, .iq-popup-tab, .service-card {
  border-radius: 16px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.iq-icon-box:hover, .icon-box:hover, .service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 44px rgba(15,34,68,.12) !important;
  border-color: rgba(0,123,252,.35) !important;
}
/* 图标底色柔和化 */
.iq-icon-box .icon, .icon-box .icon {
  transition: transform .35s ease;
}
.iq-icon-box:hover .icon, .icon-box:hover .icon { transform: scale(1.12) rotate(-4deg); }

/* ---------- 新闻/内容卡片 ---------- */
.iq-blog-box, .blog-box, article {
  border-radius: 16px;
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}
.iq-blog-box:hover, .blog-box:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 40px rgba(15,34,68,.13);
}
.iq-blog-box img, .blog-box img { transition: transform .5s ease; }
.iq-blog-box:hover img, .blog-box:hover img { transform: scale(1.06); }

/* ---------- 区块标题 ---------- */
.section-title h2, .iq-title h2, h2.iq-default-title {
  letter-spacing: .5px;
}

/* ---------- 数字/统计区 ---------- */
.counter { font-variant-numeric: tabular-nums; }

/* ---------- 页脚 ---------- */
footer, .iq-footer, footer.footer {
  background: #0b1730 !important;
}
footer a, .iq-footer a { transition: color .2s ease, padding-left .2s ease; }
footer a:hover, .iq-footer a:hover { color: #38bdf8 !important; padding-left: 4px; }
footer img { opacity: .95; }

/* ---------- 滚动进入淡入动画（轻量） ---------- */
.crhino-reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.crhino-reveal.crhino-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .crhino-reveal { opacity: 1 !important; transform: none !important; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 移动端微调 ---------- */
@media (max-width: 991px) {
  .navbar .nav-link::after { display: none; }
  .iq-icon-box:hover, .icon-box:hover { transform: none; }
}