/* =========================================================
   KaKaFun / 格格紛 — professional UI layer
   Loaded after common.css & index.css.
   ========================================================= */

:root {
  --kk-ink: #0f172a;
  --kk-ink-soft: #334155;
  --kk-muted: #64748b;
  --kk-primary: #0f766e;
  --kk-primary-600: #0d9488;
  --kk-primary-700: #115e59;
  --kk-primary-50: #f0fdfa;
  --kk-primary-100: #ccfbf1;
  --kk-accent: #f59e0b;
  --kk-bg: #f6f8fb;
  --kk-surface: #ffffff;
  --kk-border: #e2e8f0;
  --kk-radius: 20px;
  --kk-radius-sm: 14px;
  --kk-shadow-sm: 0 1px 2px rgba(15, 23, 42, .05), 0 4px 14px -6px rgba(15, 23, 42, .10);
  --kk-shadow-md: 0 18px 45px -24px rgba(15, 23, 42, .28);
  --kk-font: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", "Segoe UI", system-ui, -apple-system, sans-serif;
}

/* ---------- base ---------- */
body.kk-site {
  margin: 0;
  font-family: var(--kk-font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--kk-ink);
  background: var(--kk-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.kk-site *, body.kk-site *::before, body.kk-site *::after { box-sizing: border-box; }
body.kk-site img { max-width: 100%; height: auto; }
body.kk-site a { text-decoration: none; transition: color .18s ease; }
body.kk-site h1, body.kk-site h2, body.kk-site h3, body.kk-site h4 {
  font-family: var(--kk-font);
  color: var(--kk-ink);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -.02em;
}
body.kk-site p { margin: 0 0 1em; }
body.kk-site :focus-visible { outline: 3px solid rgba(13, 148, 136, .38); outline-offset: 3px; border-radius: 8px; }

.kk-container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.kk-narrow { max-width: 920px; }
.kk-muted { color: var(--kk-muted); }

.kk-site .page {
  background: transparent;
  box-shadow: none;
  max-width: none;
  margin: 0;
}
.kk-site .page:first-of-type { display: block; }
.kk-site .page-content { padding: 72px 0 88px; min-height: 0; }
.kk-site .container { max-width: 1180px; }

.kk-skip {
  position: absolute;
  left: -9999px;
  top: 12px;
  z-index: 3000;
  padding: 12px 18px;
  background: var(--kk-ink);
  color: #fff;
  border-radius: 10px;
  font-weight: 700;
}
.kk-skip:focus { left: 16px; color: #fff; }

/* ---------- shared type ---------- */
.kk-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--kk-primary);
}
.kk-eyebrow::before { content: ""; width: 20px; height: 2px; border-radius: 2px; background: currentColor; }
.kk-eyebrow--light { color: #fde68a; }

.kk-section-head { max-width: 740px; margin: 0 auto 42px; }
.kk-section-head--center { text-align: center; }
.kk-section-head--center .kk-eyebrow { justify-content: center; }
.kk-section-title {
  font-size: clamp(1.9rem, 3vw, 2.7rem);
  margin: 14px 0 12px;
}
.kk-section-lead { margin: 0; color: var(--kk-muted); font-size: 1.05rem; line-height: 1.8; }

/* ---------- navigation ---------- */
.kk-navbar {
  background: rgba(255, 255, 255, .92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--kk-border);
  padding: 10px 0;
  z-index: 1030;
}
.kk-navbar .kk-navbar-inner { max-width: 1180px; padding: 0 24px; }
.kk-brand { display: inline-flex; align-items: center; gap: 12px; color: var(--kk-ink); }
.kk-brand:hover { color: var(--kk-ink); }
.kk-brand-mark {
  width: 44px; height: 44px; flex: 0 0 44px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, #ecfeff, #ccfbf1);
  box-shadow: inset 0 0 0 1px rgba(15, 118, 110, .12);
}
.kk-brand-mark img { width: 32px; height: 32px; display: block; }
.kk-brand-text { display: flex; flex-direction: column; line-height: 1.08; }
.kk-brand-text b { font-size: 1.05rem; font-weight: 800; letter-spacing: .01em; }
.kk-brand-text small { font-size: .62rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--kk-muted); }

.kk-nav-links { gap: 2px; }
.kk-nav-links .nav-link {
  color: var(--kk-ink-soft);
  font-size: .88rem;
  font-weight: 650;
  padding: 8px 11px;
  border-radius: 10px;
  white-space: nowrap;
}
.kk-nav-links .nav-link:hover { color: var(--kk-primary); background: var(--kk-primary-50); }
.kk-nav-links .nav-link.active { color: var(--kk-primary); background: var(--kk-primary-50); }
.kk-nav-right { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.kk-lang { display: inline-flex; align-items: center; gap: 2px; padding: 4px; background: #f1f5f9; border-radius: 999px; }
.kk-lang a {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 34px; height: 30px; padding: 0 9px;
  border-radius: 999px;
  font-size: .76rem; font-weight: 800; color: var(--kk-muted);
}
.kk-lang a:hover { color: var(--kk-primary); background: #fff; }
.kk-lang a.is-active { color: var(--kk-primary); background: #fff; box-shadow: var(--kk-shadow-sm); }
.kk-nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--kk-ink); color: #fff;
  font-size: .84rem; font-weight: 750; white-space: nowrap;
  transition: transform .18s ease, background .18s ease;
}
.kk-nav-cta:hover { color: #fff; background: var(--kk-primary); transform: translateY(-1px); }
.kk-navbar .navbar-toggler { border: 1px solid var(--kk-border); border-radius: 11px; padding: 8px 10px; }
.kk-navbar .navbar-toggler:focus { box-shadow: none; }

/* ---------- hero ---------- */
.kk-hero { position: relative; background: #062a2e; }
.kk-hero-carousel { height: 640px; max-height: none; }
.kk-hero-carousel .carousel-inner,
.kk-hero-carousel .carousel-item { height: 100%; }
.kk-hero-carousel .carousel-item { position: relative; overflow: hidden; }
.kk-hero-carousel .carousel-item::after {
  content: "";
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(100deg, rgba(3, 27, 34, .90) 0%, rgba(4, 52, 58, .62) 44%, rgba(4, 52, 58, .10) 72%, rgba(4, 52, 58, 0) 100%);
}
.kk-hero-img { width: 100%; height: 100%; object-fit: cover; display: block; filter: saturate(1.25) contrast(1.04) brightness(1.10); }
.kk-hero-watermark {
  position: absolute; right: -3%; top: 50%; z-index: 1;
  width: 46%; height: 72%;
  transform: translateY(-50%);
  background-repeat: no-repeat; background-position: center; background-size: contain;
  opacity: .14;
  filter: grayscale(1) brightness(2.4);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 34%);
  mask-image: linear-gradient(90deg, transparent, #000 34%);
  pointer-events: none;
}
.kk-hero-caption {
  position: absolute; inset: 0; z-index: 2;
  display: flex; flex-direction: column; justify-content: center; align-items: flex-start;
  max-width: 1180px; margin: 0 auto; padding: 0 24px;
  text-align: left;
  text-shadow: 0 1px 18px rgba(0, 0, 0, .42);
}
.kk-hero-caption > * { max-width: 720px; }
body.kk-site .kk-hero-caption h1,
body.kk-site .kk-hero-caption h2 {
  margin: 14px 0 16px;
  color: #fff;
  font-size: clamp(2.45rem, 5vw, 4.2rem);
  line-height: 1.08;
  letter-spacing: -.035em;
  text-shadow: 0 2px 34px rgba(0, 0, 0, .35);
}
.kk-hero-lead { margin: 0 0 28px; color: rgba(255, 255, 255, .92); font-size: clamp(1rem, 1.5vw, 1.22rem); line-height: 1.75; }
.kk-hero-lead h3 { margin: 0; color: inherit; font-size: inherit; font-weight: 500; letter-spacing: 0; }
.kk-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
.kk-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 22px; border-radius: 999px;
  border: 1px solid transparent;
  font-size: .94rem; font-weight: 750; line-height: 1;
  transition: transform .18s ease, background .18s ease, color .18s ease, box-shadow .18s ease;
}
.kk-btn:hover { transform: translateY(-2px); }
.kk-btn--light { background: #fff; color: var(--kk-ink); box-shadow: 0 16px 36px -18px rgba(0, 0, 0, .65); }
.kk-btn--light:hover { background: #fde68a; color: #111827; }
.kk-btn--ghost { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .45); color: #fff; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.kk-btn--ghost:hover { background: rgba(255, 255, 255, .17); color: #fff; }
.kk-btn--primary { background: var(--kk-primary); border-color: var(--kk-primary); color: #fff; }
.kk-btn--primary:hover { background: var(--kk-primary-700); border-color: var(--kk-primary-700); color: #fff; }
.kk-hero-meta { display: flex; align-items: center; gap: 8px; margin: 0; color: rgba(255, 255, 255, .82); font-size: .82rem; letter-spacing: .04em; }
.kk-hero .carousel-indicators { bottom: 72px; z-index: 3; margin: 0 auto; }
.kk-hero .carousel-indicators [data-bs-target] { width: 30px; height: 3px; margin: 0 4px; border: 0; border-radius: 99px; background: rgba(255, 255, 255, .58); opacity: 1; box-shadow: 0 1px 8px rgba(0, 0, 0, .35); }
.kk-hero .carousel-indicators .active { background: #fbbf24; box-shadow: 0 0 0 4px rgba(251, 191, 36, .20), 0 1px 8px rgba(0, 0, 0, .35); }
.kk-hero-control {
  width: 48px; height: 48px; top: 50%; margin-top: -24px; z-index: 3;
  display: flex; align-items: center; justify-content: center;
  background: rgba(3, 20, 26, .42); border: 1px solid rgba(255, 255, 255, .55);
  border-radius: 50%; opacity: 1;
  box-shadow: 0 12px 30px -14px rgba(0, 0, 0, .65);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.kk-hero-control:hover { background: rgba(3, 20, 26, .60); }
.kk-hero-control.carousel-control-prev { left: 24px; }
.kk-hero-control.carousel-control-next { right: 24px; }
.kk-hero-control .carousel-control-prev-icon,
.kk-hero-control .carousel-control-next-icon { width: 17px; height: 17px; }

/* ---------- trust bar ---------- */
.kk-trust {
  position: relative; z-index: 4;
  display: grid; grid-template-columns: repeat(3, 1fr);
  margin-top: -46px;
  background: #fff;
  border: 1px solid var(--kk-border);
  border-radius: 20px;
  box-shadow: var(--kk-shadow-md);
  overflow: hidden;
}
.kk-trust-item { display: flex; align-items: center; gap: 14px; padding: 22px 26px; }
.kk-trust-item + .kk-trust-item { border-left: 1px solid var(--kk-border); }
.kk-trust-icon {
  width: 44px; height: 44px; flex: 0 0 44px;
  display: grid; place-items: center;
  border-radius: 14px;
  background: var(--kk-primary-50); color: var(--kk-primary);
  font-size: 1.05rem;
}
.kk-trust-item b { display: block; font-size: .96rem; font-weight: 800; }
.kk-trust-item small { display: block; color: var(--kk-muted); font-size: .78rem; line-height: 1.5; }

/* ---------- home / markets ---------- */
.kk-home-content { margin-top: 8px; text-align: center; }
.kk-home-content .d-flex { gap: 26px; align-items: flex-start !important; }
.kk-home-content #v-pills-tab {
  flex: 0 0 148px;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--kk-border);
  border-radius: 16px;
  box-shadow: var(--kk-shadow-sm);
  font-size: 1rem;
}
.kk-home-content #v-pills-tab .nav-link {
  border: 0; border-radius: 10px;
  padding: 10px 16px;
  color: var(--kk-ink-soft);
  font-size: .92rem;
  font-weight: 700; text-align: left;
}
.kk-home-content #v-pills-tab .nav-link.active { background: var(--kk-primary); color: #fff; }
.kk-home-content #v-pills-tabContent { flex: 1 1 auto; min-width: 0; }
.kk-home-content .tab-pane { text-align: center; }
.kk-home-content h3 { margin: 0 0 18px; color: var(--kk-muted); font-size: 1.02rem; font-weight: 700; letter-spacing: 0; }
.kk-home-content .tab-pane .text-center {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}
.kk-home-content .w-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: calc(33.333% - 11px);
  max-width: 320px; min-width: 0; min-height: 0; max-height: none;
  margin: 0;
  padding: 26px 18px !important;
  border: 1px solid rgba(15, 23, 42, .06);
  border-radius: 22px !important;
  box-shadow: var(--kk-shadow-sm) !important;
  text-align: center;
  font-size: 1rem;
  transition: transform .2s ease, box-shadow .2s ease;
}
.kk-home-content .w-box small { display: block; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kk-home-content .w-box small a { display: block; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kk-home-content .w-box:hover { transform: translateY(-4px); box-shadow: var(--kk-shadow-md) !important; }
.kk-home-content .w-box img.icon {
  width: 92px !important; height: 92px !important;
  border: 0 !important; border-radius: 22px !important;
  box-shadow: 0 12px 26px -14px rgba(15, 23, 42, .55);
}
.kk-home-content .w-box > a {
  display: inline-block;
  margin-top: 2px;
  padding: 11px 22px !important;
  border-radius: 999px !important;
  font-size: .86rem !important;
  font-weight: 800 !important;
  box-shadow: 0 10px 22px -14px rgba(15, 23, 42, .55) !important;
}
.kk-home-content .w-box small a { font-size: .7rem !important; }
.kk-home-content .w-box[style*="f2f2f2"] {
  max-width: 360px;
  padding: 18px !important;
  background: #f8fafc !important;
  border: 1px dashed #cbd5e1 !important;
  box-shadow: none !important;
}
.kk-home-content .w-box[style*="f2f2f2"] img { max-height: 110px; object-fit: contain; }
.kk-home-content h2 {
  margin: 56px auto 18px;
  max-width: 760px;
  padding-top: 44px;
  border-top: 1px solid var(--kk-border);
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  text-align: left;
}
.kk-home-content h2 ~ p,
.kk-home-content h2 ~ div { text-align: left; }

/* ---------- tabs (shared) ---------- */
.kk-tabs { border: 0; justify-content: center; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.kk-tabs .nav-link {
  border: 1px solid var(--kk-border);
  border-radius: 999px;
  padding: 9px 20px;
  background: #fff;
  color: var(--kk-ink-soft);
  font-size: .9rem;
  font-weight: 700;
}
.kk-tabs .nav-link:hover { border-color: var(--kk-primary-100); color: var(--kk-primary); }
.kk-tabs .nav-link.active { background: var(--kk-primary); border-color: var(--kk-primary); color: #fff; }

/* ---------- download ---------- */
.kk-download-card {
  padding: 28px;
  background: #fff;
  border: 1px solid var(--kk-border);
  border-radius: 24px;
  box-shadow: var(--kk-shadow-md);
}
.kk-download-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.kk-badge {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--kk-primary-50); color: var(--kk-primary);
  font-size: .74rem; font-weight: 800;
}
.kk-download .kk-tab-content { padding-top: 8px; }
.kk-download .kk-tab-content > .tab-pane { padding: 24px 4px 4px; }
.kk-download .kk-tab-content > .tab-pane > div { padding: 0 !important; }
.kk-download .kk-tab-content .row {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px;
  margin: 0;
}
.kk-download .kk-tab-content .row > .col {
  width: auto; max-width: none; flex: none;
  display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: center;
  padding: 24px 16px;
  background: #f8fafc;
  border: 1px solid var(--kk-border);
  border-radius: 20px;
  text-align: center;
}
.kk-download .kk-tab-content .row > .col > center { flex: 0 0 100%; }
.kk-download .kk-tab-content .row > .col > center img {
  width: 92px; height: 92px;
  border-radius: 22px;
  box-shadow: var(--kk-shadow-sm);
}
.kk-download .kk-tab-content .row > .col > br { display: none; }
.kk-download .kk-tab-content .col-xs-4 {
  display: inline-flex; flex-direction: column; align-items: center;
  flex: 0 0 31%; width: 31%; margin: 16px 1% 0;
}
.kk-download .kk-tab-content .col-xs-4 a { display: block; color: var(--kk-ink-soft); font-size: .76rem; font-weight: 700; }
.kk-download .kk-tab-content .col-xs-4 a:hover { color: var(--kk-primary); }
.kk-download .kk-tab-content .col-xs-4 img {
  width: 100%; max-width: 112px;
  border-radius: 11px;
  box-shadow: var(--kk-shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease;
}
.kk-download .kk-tab-content .col-xs-4 a:hover img { transform: translateY(-2px); box-shadow: var(--kk-shadow-md); }

/* ---------- product ---------- */
.kk-product .kk-tab-content > .tab-pane {
  padding: clamp(22px, 4vw, 40px);
  background: #fff;
  border: 1px solid var(--kk-border);
  border-radius: 24px;
  box-shadow: var(--kk-shadow-md);
}
.kk-product .kk-tab-content > .tab-pane > .mb-3 { margin-bottom: 0 !important; }
.kk-product .kk-tab-content .row { align-items: center; }
.kk-product .kk-tab-content .col-md-4 .container {
  padding: 28px !important;
  border-radius: 24px;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
}
.kk-product .kk-tab-content .col-md-4 img { display: block; margin: 0 auto; width: auto; max-height: 420px; filter: drop-shadow(0 22px 30px rgba(15, 23, 42, .18)); }
.kk-product .kk-tab-content .col-md-8 .container { padding: 0 !important; }
.kk-product .kk-tab-content .card-body { padding: 0 0 0 12px; }
.kk-product .kk-tab-content .card-title {
  margin: 0 0 16px;
  font-size: clamp(1.5rem, 2.2vw, 2rem) !important;
  font-weight: 800;
  color: var(--kk-ink);
}
.kk-product .kk-tab-content .card-text { color: var(--kk-ink-soft); font-size: 1rem; line-height: 1.95; }
.kk-product .kk-tab-content .card-text .btn { display: none; }
.kk-product .kk-product-actions { margin-top: 26px; }
.kk-product .kk-tab-content > .tab-pane:nth-child(1) .col-md-4 .container { background: linear-gradient(135deg, #eff6ff, #dbeafe); }
.kk-product .kk-tab-content > .tab-pane:nth-child(2) .col-md-4 .container { background: linear-gradient(135deg, #fdf2f8, #fce7f3); }
.kk-product .kk-tab-content > .tab-pane:nth-child(3) .col-md-4 .container { background: linear-gradient(135deg, #f0fdfa, #ccfbf1); }
.kk-product .kk-tab-content > .tab-pane:nth-child(4) .col-md-4 .container { background: linear-gradient(135deg, #fffbeb, #fef3c7); }

/* ---------- developer ---------- */
.kk-dev .kk-dev-content > .tab-pane {
  padding: clamp(22px, 4vw, 40px);
  background: #fff;
  border: 1px solid var(--kk-border);
  border-radius: 24px;
  box-shadow: var(--kk-shadow-md);
}
.kk-dev .kk-dev-content > .tab-pane > div { padding: 0 !important; }
.kk-dev .kk-dev-content h2.h2 { margin: 30px 0 10px; font-size: 1.22rem; }
.kk-dev .kk-dev-content h2.h2:first-child { margin-top: 0; }
.kk-dev .kk-dev-example { padding: 0; }
.kk-dev .kk-dev-example .d-flex { gap: 24px; }
.kk-dev #v-dev-pills-tab {
  flex: 0 0 210px;
  padding: 8px;
  background: #f8fafc;
  border: 1px solid var(--kk-border);
  border-radius: 16px;
}
.kk-dev #v-dev-pills-tab .nav-link {
  border: 0; border-radius: 10px;
  padding: 10px 14px;
  color: var(--kk-ink-soft);
  font-weight: 700; text-align: left;
}
.kk-dev #v-dev-pills-tab .nav-link.active { background: var(--kk-primary); color: #fff; }
.kk-dev #v-dev-pills-tabContent { flex: 1 1 auto; min-width: 0; padding-left: 0 !important; }
.kk-dev pre {
  margin: 14px 0 22px;
  padding: 18px 20px;
  background: #0b1220;
  color: #e2e8f0;
  border: 1px solid rgba(148, 163, 184, .18);
  border-radius: 14px;
  overflow: auto;
  font-size: .84rem;
  line-height: 1.65;
}
.kk-dev pre code { background: transparent !important; color: inherit; padding: 0; }
.kk-dev .hljs { background: #0b1220 !important; color: #e2e8f0; }
.kk-dev .hljs-keyword, .kk-dev .hljs-selector-tag, .kk-dev .hljs-built_in { color: #7dd3fc; }
.kk-dev .hljs-string, .kk-dev .hljs-attr { color: #fca5a5; }
.kk-dev .hljs-comment { color: #94a3b8; font-style: italic; }
.kk-dev .hljs-number, .kk-dev .hljs-literal { color: #fcd34d; }

/* ---------- prose / legal ---------- */
.kk-prose {
  padding: clamp(24px, 4vw, 48px);
  background: #fff;
  border: 1px solid var(--kk-border);
  border-radius: 24px;
  box-shadow: var(--kk-shadow-sm);
}
.kk-prose h2 { margin: 0 0 16px; font-size: clamp(1.45rem, 2.3vw, 1.95rem); }
.kk-prose h3 { margin: 30px 0 10px; font-size: 1.14rem; }
.kk-prose h4 { margin: 22px 0 8px; font-size: 1rem; }
.kk-prose p, .kk-prose li { color: var(--kk-ink-soft); line-height: 1.95; }
.kk-prose ul, .kk-prose ol { margin: 0 0 1.2em; padding-left: 1.35em; }
.kk-prose li { margin: 7px 0; }
.kk-prose table { width: 100%; margin: 20px 0; border-collapse: collapse; font-size: .92rem; }
.kk-prose th, .kk-prose td { padding: 10px 13px; border: 1px solid var(--kk-border); text-align: left; vertical-align: top; }
.kk-prose th { background: #f8fafc; font-weight: 800; }
.kk-prose blockquote { margin: 20px 0; padding: 14px 18px; background: var(--kk-primary-50); border-left: 4px solid var(--kk-primary); border-radius: 0 12px 12px 0; }
.kk-prose img { border-radius: 14px; }
.kk-prose hr { margin: 30px 0; border: 0; border-top: 1px solid var(--kk-border); }
.kk-prose strong, .kk-prose b { color: var(--kk-ink); }
.kk-prose a { color: var(--kk-primary); text-decoration: underline; text-underline-offset: 3px; }
.kk-prose a:hover, .kk-dev-doc a:hover { color: var(--kk-primary-700); }
.kk-contact-block {
  margin-top: 32px;
  padding: 22px 24px;
  background: #f8fafc;
  border: 1px solid var(--kk-border);
  border-radius: 16px;
}
.kk-safety-banner {
  display: flex; align-items: flex-start; gap: 16px;
  margin-bottom: 28px;
  padding: 22px 24px;
  background: linear-gradient(135deg, #f0fdfa, #ecfeff);
  border: 1px solid #99f6e4;
  border-radius: 20px;
}
.kk-safety-banner > i { margin-top: 2px; color: var(--kk-primary); font-size: 1.55rem; }
.kk-safety-banner p { margin: 6px 0 0; color: var(--kk-ink-soft); }

/* ---------- footer ---------- */
.kk-footer { margin-top: 0; padding: 64px 0 28px; background: #0b1220; color: #cbd5e1; }
.kk-footer a { color: #cbd5e1; }
.kk-footer a:hover { color: #5eead4; }
.kk-footer .kk-brand-text b { color: #fff; }
.kk-footer .kk-brand-text small { color: #94a3b8; }
.kk-footer .kk-brand-mark { background: rgba(255, 255, 255, .06); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .10); }
.kk-footer-tagline { max-width: 320px; margin: 18px 0; color: #94a3b8; line-height: 1.8; }
.kk-footer-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.kk-footer-badges span { padding: 5px 10px; border: 1px solid rgba(148, 163, 184, .24); border-radius: 999px; color: #94a3b8; font-size: .7rem; }
.kk-footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(148, 163, 184, .18);
}
body.kk-site .kk-footer h3 { margin: 0 0 16px; color: #fff; font-size: .74rem; letter-spacing: .15em; text-transform: uppercase; }
.kk-footer ul { margin: 0; padding: 0; list-style: none; }
.kk-footer li { margin: 10px 0; }
.kk-footer li a { font-size: .88rem; }
.kk-footer-bottom { display: flex; justify-content: space-between; gap: 16px; padding-top: 24px; color: #64748b; font-size: .78rem; flex-wrap: wrap; }
.kk-footer-bottom p { margin: 0; }
.kk-to-top {
  position: fixed; right: 24px; bottom: 24px; z-index: 1100;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: #fff; color: var(--kk-ink);
  box-shadow: var(--kk-shadow-md);
  font-size: .9rem;
}
.kk-to-top:hover { background: var(--kk-primary); color: #fff; }

/* ---------- responsive ---------- */
@media (max-width: 1199px) {
  .kk-navbar .navbar-collapse {
    margin-top: 12px;
    padding: 14px;
    background: #fff;
    border: 1px solid var(--kk-border);
    border-radius: 16px;
    box-shadow: var(--kk-shadow-md);
  }
  .kk-nav-links { width: 100%; margin-bottom: 8px; }
  .kk-nav-links .nav-link { padding: 10px 12px; font-size: .9rem; }
  .kk-nav-right { width: 100%; justify-content: space-between; margin-left: 0; padding-top: 10px; border-top: 1px solid var(--kk-border); gap: 8px; }
  .kk-lang a { min-width: 30px; padding: 0 7px; }
  .kk-brand-text small { display: none; }
}

@media (max-width: 991px) {
  .kk-hero-carousel { height: 560px; }
  .kk-hero-watermark { display: none; }
  .kk-hero-control { display: none; }
  .kk-trust { grid-template-columns: repeat(3, 1fr); margin-top: -36px; }
  .kk-trust-item { padding: 18px 16px; }
  .kk-trust-item + .kk-trust-item { border-left: 1px solid var(--kk-border); border-top: 0; }
  .kk-trust-item small { display: none; }
  .kk-home-content .d-flex { flex-direction: column; align-items: stretch !important; }
  .kk-home-content #v-pills-tab { flex: none; width: 100%; flex-direction: row !important; overflow-x: auto; justify-content: flex-start; }
  .kk-home-content #v-pills-tab .nav-link { white-space: nowrap; }
  .kk-home-content .w-box { width: calc(50% - 8px); }
  .kk-download .kk-tab-content .row { grid-template-columns: 1fr; }
  .kk-dev .kk-dev-example .d-flex { flex-direction: column; }
  .kk-dev #v-dev-pills-tab { flex: none; width: 100%; flex-direction: row !important; overflow-x: auto; }
  .kk-dev #v-dev-pills-tab .nav-link { white-space: nowrap; }
  .kk-footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  .kk-container { padding: 0 18px; }
  .kk-navbar .kk-navbar-inner { padding: 0 18px; }
  .kk-site .page-content { padding: 48px 0 64px; }
  .kk-section-head { margin-bottom: 30px; }
  .kk-hero-carousel { height: 520px; }
  .kk-hero .carousel-indicators { bottom: 60px; }
  .kk-hero-caption { padding: 0 18px; }
  .kk-hero-caption h1, .kk-hero-caption h2 { font-size: clamp(2rem, 9vw, 2.65rem); }
  .kk-hero-lead { font-size: 1rem; }
  .kk-hero-actions { width: 100%; }
  .kk-hero-actions .kk-btn { flex: 1 1 auto; }
  .kk-trust { margin-top: -28px; }
  .kk-trust-item { flex-direction: column; gap: 8px; padding: 14px 8px; text-align: center; }
  .kk-trust-item b { font-size: .78rem; }
  .kk-trust-item small { display: none; }
  .kk-trust-icon { width: 36px; height: 36px; flex: 0 0 36px; }
  .kk-home-content .d-flex { flex-direction: column; align-items: stretch !important; }
  .kk-home-content #v-pills-tab { flex: none; width: 100%; flex-direction: row !important; overflow-x: auto; justify-content: flex-start; }
  .kk-home-content #v-pills-tab .nav-link { white-space: nowrap; }
  .kk-home-content .w-box { width: 100%; max-width: 340px; margin: 0 auto; }
  .kk-download-card { padding: 18px; }
  .kk-download .kk-tab-content .row > .col { padding: 20px 12px; }
  .kk-download .kk-tab-content .col-xs-4 img { max-width: 88px; }
  .kk-product .kk-tab-content .card-body { padding: 22px 0 0; }
  .kk-product .kk-tab-content .col-md-4 .container { margin-bottom: 4px; }
  .kk-dev .kk-dev-content > .tab-pane { padding: 22px; }
  .kk-prose { padding: 24px 20px; }
  .kk-footer { padding-top: 48px; }
  .kk-footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .kk-footer-bottom { flex-direction: column; }
  .kk-to-top { right: 16px; bottom: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  body.kk-site *, body.kk-site *::before, body.kk-site *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- final refinements ---------- */
.kk-navbar .navbar-toggler-icon {
  width: 1.35em;
  height: 1.35em;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(15,23,42,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.kk-dev .kk-dev-doc { color: var(--kk-ink-soft); line-height: 1.9; }
.kk-dev .kk-dev-doc p { margin: 0 0 1.1em; }
.kk-dev .kk-dev-doc ul, .kk-dev .kk-dev-doc ol { margin: 0 0 1.2em; padding-left: 1.35em; }
.kk-dev .kk-dev-doc li { margin: 7px 0; }
.kk-dev .kk-dev-doc h3 { margin: 24px 0 8px; font-size: 1.05rem; }
.kk-dev .kk-dev-doc a { color: var(--kk-primary); text-decoration: underline; text-underline-offset: 3px; }
.kk-dev .kk-dev-doc code { padding: 2px 6px; background: #f1f5f9; color: #0f172a; border-radius: 6px; font-size: .9em; }
.kk-dev .kk-dev-doc pre code { padding: 0; background: transparent; color: inherit; }
.kk-dev .kk-dev-doc img { max-width: 100%; height: auto; border-radius: 12px; }


/* Vietnamese nav is text-heavier: keep it compact at every width. */
.kk-navbar.kk-lang-3 .kk-nav-links { gap: 0; }
.kk-navbar.kk-lang-3 .kk-nav-links .nav-link { padding-left: 8px; padding-right: 8px; font-size: .82rem; }
.kk-navbar.kk-lang-3 .kk-lang a { min-width: 28px; padding: 0 6px; }
.kk-navbar.kk-lang-3 .kk-nav-cta { padding: 9px 12px; font-size: .8rem; }