/* ============================================================
   Gambol.Pet / 嬉宠乐园 — CatDog Heart Design System
   Colors: Dreamy Rainbow Lollipop Palette
   Fonts: Instrument Serif (OFL) · Geist (OFL) · Noto Serif SC (OFL) · Noto Sans SC (OFL)
   Layout: global symmetry · responsive
   ============================================================ */

:root {
  /* Dreamy Rainbow Lollipop Palette */
  --black: #0A0A0A;
  --white: #FFFFFF;
  --cream: #FEFAFF;
  --pink: #FFB6D9;
  --pink-deep: #FF6B9D;
  --pink-soft: #FFD6EB;
  --pink-bg: #FFF0F7;
  --pink-mist: #FDF4FA;
  --lollipop-red: #FF6B8A;
  --lollipop-orange: #FFB347;
  --lollipop-yellow: #FFE066;
  --lollipop-green: #6BCB77;
  --lollipop-cyan: #4DD0E1;
  --lollipop-blue: #7C8CF8;
  --lollipop-purple: #C77DFF;
  --ink: #1A1A2E;
  --muted: #6B6B8A;
  --muted-light: #9A9AB0;
  --rule: #EDE4F0;
  --surface: #FFFFFF;
  --surface-pink: #FAF4FC;
  --shadow-sm: 0 1px 3px rgba(26,26,46,.04), 0 2px 8px rgba(255,107,157,.06);
  --shadow-md: 0 6px 24px rgba(26,26,46,.08), 0 2px 8px rgba(255,107,157,.08);
  --shadow-lg: 0 18px 48px rgba(26,26,46,.10), 0 6px 16px rgba(199,125,255,.10);
  --shadow-pink: 0 8px 30px rgba(255,107,157,.15);
  --r-sm: 10px;
  --r-md: 18px;
  --r-lg: 28px;
  --r-pill: 999px;
  --maxw: 1080px;
  --nav-h: 72px;
  --font-display: 'Instrument Serif', 'Noto Serif SC', Georgia, serif;
  --font-body: 'Geist', 'Noto Sans SC', system-ui, sans-serif;
}
html[lang="zh-CN"] {
  --font-display: 'Noto Serif SC', 'Instrument Serif', serif;
  --font-body: 'Noto Sans SC', 'Geist', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.25; font-weight: 600; color: var(--ink);
  margin: 0 0 .5em; letter-spacing: -.015em;
}
p { margin: 0 0 1rem; }
::selection { background: var(--pink-soft); color: var(--ink); }

/* ---------- Symmetry ---------- */
.wrap { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; }
.center { text-align: center; }

/* ---------- Navbar ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--nav-h); display: flex; align-items: center;
  transition: background .35s, box-shadow .35s, backdrop-filter .35s;
  border-bottom: 1px solid transparent; background: transparent;
}
.nav.scrolled {
  background: rgba(254,250,255,.82);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  box-shadow: 0 1px 0 rgba(26,26,46,.05), 0 6px 24px rgba(26,26,46,.05);
  border-bottom-color: var(--rule);
}
.nav__inner {
  width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto;
  display: flex; align-items: center; gap: 1rem;
}
.brand { display: flex; align-items: center; gap: .6rem; flex: 0 0 auto; }
.brand-mark { width: 40px; height: 40px; flex: 0 0 auto; }
.brand-text { font-family: var(--font-display); font-weight: 600; font-size: 1.2rem; color: var(--ink); letter-spacing: -.01em; }
.brand-text .dot { color: var(--pink-deep); }
.brand-sub { font-size: .6rem; letter-spacing: .26em; text-transform: uppercase; color: var(--muted-light); display: block; margin-top: -2px; }
.nav__links { display: flex; align-items: center; gap: .25rem; margin-left: auto; }
.nav-link {
  position: relative; padding: .5rem .9rem; border-radius: var(--r-pill);
  font-size: .92rem; font-weight: 500; color: var(--ink); transition: color .25s, background .25s;
}
.nav-link:hover { color: var(--pink-deep); background: var(--pink-bg); }
.nav-link.active { color: var(--pink-deep); }
.nav-link.active::after { content:""; position:absolute; left:50%; bottom:2px; transform:translateX(-50%); width:16px; height:2px; background: var(--pink-deep); border-radius:2px; }
.lang-switch { display: inline-flex; align-items: center; gap: .2rem; padding: .3rem .5rem; border: 1px solid var(--rule); border-radius: var(--r-pill); background: rgba(255,255,255,.5); }
.lang-btn { font-size: .78rem; font-weight: 600; color: var(--muted); padding: .15rem .5rem; border-radius: var(--r-pill); cursor: pointer; border: 0; background: transparent; transition: all .2s; text-decoration: none; display: inline-block; }
.lang-btn.active { background: var(--pink-deep); color: #fff; }
.nav-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer; padding: 0; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px auto; transition: .3s; }

/* ---------- Stage (homepage) ---------- */
.stage { min-height: 100svh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: calc(var(--nav-h) + 2rem) 1.25rem 3rem; position: relative; overflow: hidden; }
.stage::before {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(50% 40% at 15% 20%, rgba(255,107,138,.12), transparent 60%),
    radial-gradient(40% 35% at 85% 15%, rgba(199,125,255,.10), transparent 55%),
    radial-gradient(45% 40% at 50% 85%, rgba(77,208,225,.08), transparent 60%),
    radial-gradient(35% 30% at 30% 70%, rgba(255,179,71,.07), transparent 55%);
}
.stage__inner { position: relative; z-index: 1; width: 100%; max-width: 920px; display: flex; flex-direction: column; align-items: center; }
.stage__title { font-size: clamp(1.6rem, 4vw, 2.6rem); text-align: center; margin-bottom: .4rem; }
.stage__title .pink { color: var(--pink-deep); }
.stage__sub { color: var(--muted); font-size: clamp(.9rem, 1.6vw, 1.05rem); text-align: center; margin-bottom: 2rem; }

.video-frame {
  position: relative; width: 100%; border-radius: var(--r-lg); overflow: hidden;
  box-shadow: var(--shadow-lg); border: 1px solid var(--rule); background: var(--black); aspect-ratio: 16 / 9;
}
.video-frame video { width: 100%; height: 100%; object-fit: cover; display: block; }
.video-tag { position: absolute; left: 1rem; top: 1rem; z-index: 2; background: rgba(255,255,255,.92); backdrop-filter: blur(6px); color: var(--ink); font-size: .7rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; padding: .35rem .75rem; border-radius: var(--r-pill); }

/* ---------- Slogan ---------- */
.slogan { margin-top: 2.8rem; text-align: center; max-width: 700px; }
.slogan__main { font-family: var(--font-display); font-size: clamp(1.3rem, 3.2vw, 2rem); font-weight: 600; line-height: 1.4; color: var(--ink); margin: 0 0 .6rem; }
.slogan__divider { width: 48px; height: 2px; background: var(--pink-deep); border-radius: 2px; margin: 0 auto 1.6rem; }
.slogan__sub { font-size: clamp(.95rem, 1.6vw, 1.05rem); color: var(--muted); line-height: 1.8; margin: 0; }

/* ---------- About Hero ---------- */
.about-hero { padding: calc(var(--nav-h) + 3.5rem) 0 2rem; text-align: center; position: relative; overflow: hidden; }
.about-hero::before { content:""; position:absolute; inset:0; z-index:0; pointer-events:none; background: radial-gradient(50% 50% at 50% 0%, rgba(255,107,157,.12), transparent 70%), radial-gradient(40% 40% at 20% 50%, rgba(199,125,255,.06), transparent 60%); }
.about-hero__inner { position: relative; z-index: 1; }
.about-hero h1 { font-size: clamp(2rem, 5vw, 3.4rem); margin-bottom: .6rem; }
.about-hero h1 .pink { color: var(--pink-deep); }
.about-hero__lead { font-size: clamp(1rem, 2vw, 1.15rem); color: var(--muted); max-width: 56ch; margin: 0 auto; }

/* ---------- Section ---------- */
.section { padding: clamp(3rem, 7vw, 5rem) 0; }
.section--alt { background: var(--surface-pink); }
.eyebrow { display: inline-flex; align-items: center; gap: .5rem; font-size: .76rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase; color: var(--pink-deep); margin-bottom: .8rem; }
.eyebrow::before, .eyebrow::after { content:""; width: 20px; height: 2px; background: var(--pink); border-radius: 2px; }

/* ---------- Values Grid (symmetric 2-col) ---------- */
.values-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; max-width: 820px; margin: 0 auto; }
.value-card {
  background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r-lg);
  padding: 2.4rem 2rem; text-align: center;
  transition: transform .3s, box-shadow .3s, border-color .3s;
  display: flex; flex-direction: column; align-items: center;
  position: relative; overflow: hidden;
}
.value-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lollipop-red), var(--lollipop-orange), var(--lollipop-yellow), var(--lollipop-green), var(--lollipop-cyan), var(--lollipop-blue), var(--lollipop-purple));
}
.value-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.value-card__icon { width: 72px; height: 72px; margin-bottom: 1.2rem; }
.value-card__tag { font-size: .78rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; margin-bottom: .6rem; color: var(--pink-deep); }
.value-card h3 { font-size: 1.3rem; margin-bottom: .6rem; }
.value-card p { color: var(--muted); margin: 0; font-size: .96rem; line-height: 1.75; }

/* ---------- Legal ---------- */
.legal { max-width: 800px; margin: 0 auto; }
.legal__group { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--r-md); padding: 1.8rem 2rem; margin-bottom: 1.2rem; }
.legal__group h3 { font-size: 1.05rem; margin-bottom: .6rem; display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.legal__group h3 .badge { font-size: .66rem; font-weight: 600; letter-spacing: .08em; padding: .15rem .5rem; border-radius: var(--r-pill); background: var(--pink-bg); color: var(--pink-deep); text-transform: uppercase; }
.legal__group h3 .badge--eu { background: #EEF4FF; color: #3B6FC9; }
.legal__group h3 .badge--us { background: #FFF4E6; color: #C97A1E; }
.legal__group h3 .badge--cn { background: #F0FBF5; color: #2E8B57; }
.legal__group p, .legal__group li { font-size: .9rem; color: var(--muted); line-height: 1.75; }
.legal__group p { margin-bottom: .5rem; }
.legal__group ul { padding-left: 1.2rem; margin: .4rem 0 0; }
.legal__group li { margin-bottom: .3rem; }
.legal__group strong { color: var(--ink); }
.legal__contact { text-align: center; padding: 2.4rem 2rem; background: linear-gradient(135deg, var(--pink-bg), var(--pink-mist)); border-radius: var(--r-lg); border: 1px solid var(--pink-soft); }
.legal__contact h3 { justify-content: center; }
.legal__contact a { color: var(--pink-deep); font-weight: 700; font-size: 1.1rem; }
.legal__contact p { color: var(--muted); font-size: .9rem; max-width: 460px; margin: .6rem auto 0; }

/* ---------- Footer (compact left-right) ---------- */
.footer {
  background: #2D1B2E;
  color: rgba(255,255,255,.72);
  padding: 2rem 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer .brand-text { color: #FFD6EB; }
.footer .brand-sub { color: rgba(255,255,255,.45); }
.footer__left {
  display: flex; align-items: center; gap: .8rem;
}
.footer__left .brand-sub { display: none; }
.footer__right {
  display: flex; align-items: center; gap: 1.5rem;
  flex-wrap: wrap;
}
.footer__copy { font-size: .82rem; color: rgba(255,255,255,.5); line-height: 1.5; margin: 0; }
.footer__copy .footer-trigger { color: rgba(255,255,255,.6); transition: color .2s; }
.footer__copy .footer-trigger:hover { color: var(--pink); }
.footer__legal-row {
  display: flex; align-items: center; gap: .8rem;
  font-size: .78rem;
}
.footer__legal-row .footer-trigger { color: rgba(255,255,255,.45); transition: color .2s; }
.footer__legal-row .footer-trigger:hover { color: var(--pink); }
.footer__legal-row .sep { color: rgba(255,255,255,.2); }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(26,26,46,.55); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity .3s;
  padding: 1.5rem;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--surface); border-radius: var(--r-lg);
  max-width: 720px; width: 100%; max-height: 85vh;
  overflow: hidden; display: flex; flex-direction: column;
  box-shadow: var(--shadow-lg); border: 1px solid var(--rule);
  transform: translateY(20px) scale(.98); transition: transform .35s cubic-bezier(.2,.7,.2,1);
}
.modal-overlay.open .modal { transform: none; }
.modal__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem 2rem; border-bottom: 1px solid var(--rule);
  position: sticky; top: 0; background: var(--surface); z-index: 1;
}
.modal__head h3 { font-size: 1.15rem; margin: 0; }
.modal__close {
  width: 36px; height: 36px; border: 1px solid var(--rule); border-radius: var(--r-pill);
  background: transparent; cursor: pointer; font-size: 1.2rem; color: var(--muted);
  display: flex; align-items: center; justify-content: center;
  transition: all .2s; padding: 0; line-height: 1;
}
.modal__close:hover { background: var(--pink-bg); color: var(--pink-deep); border-color: var(--pink-soft); }
.modal__body { padding: 1.6rem 2rem 2rem; overflow-y: auto; flex: 1; }
.modal__body p { font-size: .92rem; color: var(--muted); line-height: 1.8; margin-bottom: .8rem; }
.modal__body p:last-child { margin-bottom: 0; }
.modal__body ul { padding-left: 1.2rem; margin: .4rem 0 .8rem; }
.modal__body li { font-size: .92rem; color: var(--muted); line-height: 1.75; margin-bottom: .3rem; }
.modal__body strong { color: var(--ink); }
.modal__body h4 { font-size: .98rem; margin: 1.2rem 0 .4rem; color: var(--ink); }
.modal__body .badge { display: inline-block; font-size: .66rem; font-weight: 600; letter-spacing: .08em; padding: .15rem .5rem; border-radius: var(--r-pill); background: var(--pink-bg); color: var(--pink-deep); text-transform: uppercase; margin-left: .4rem; vertical-align: middle; }
.modal__body .badge--eu { background: #EEF4FF; color: #3B6FC9; }
.modal__body .badge--us { background: #FFF4E6; color: #C97A1E; }
.modal__body .badge--cn { background: #F0FBF5; color: #2E8B57; }

/* Footer trigger buttons (look like links) */
.footer-trigger {
  background: none; border: none; color: inherit; font: inherit;
  cursor: pointer; padding: 0; text-decoration: none;
}
.footer-trigger:hover { color: var(--pink); }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity:1; transform:none; transition:none; } html { scroll-behavior:auto; } }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  :root { --nav-h: 62px; }
  .nav__links {
    position: fixed; inset: var(--nav-h) 0 auto 0; flex-direction: column; align-items: stretch;
    background: rgba(254,250,255,.97); backdrop-filter: blur(18px); padding: 1rem 1.2rem 1.6rem; gap: .15rem;
    transform: translateY(-130%); transition: transform .4s cubic-bezier(.2,.7,.2,1);
    box-shadow: 0 18px 40px rgba(26,26,46,.1); border-bottom: 1px solid var(--rule);
  }
  .nav__links.open { transform: translateY(0); }
  .nav__links .nav-link { padding: .8rem 1rem; font-size: 1.02rem; border-radius: var(--r-md); }
  .nav__links .nav-link.active::after { display: none; }
  .nav__links .lang-switch { margin: .3rem 0 0; }
  .nav-toggle { display: block; margin-left: auto; }
  .values-grid { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; text-align: center; justify-content: center; }
  .footer__right { justify-content: center; }
  .modal { max-height: 90vh; }
  .modal__head { padding: 1rem 1.4rem; }
  .modal__body { padding: 1.2rem 1.4rem 1.6rem; }
}