/* ==========================================================
   HAINAN ZHUANGYUAN Pet Food — B2B (KR)
   Korean aesthetic: warm cream base, soft peach accent,
   generous whitespace, rounded cards, gentle motion.
   ========================================================== */

:root{
  --cream:#FAF6F0;
  --cream-2:#F4EEE5;
  --paper:#FFFFFF;
  --ink:#2B2622;
  --ink-2:#4A423B;
  --muted:#6E645A;         /* AA on cream & cream-2 */
  --line:#E8DFD3;
  --peach:#E8794A;
  --peach-soft:#FBEDE5;
  --peach-deep:#AE4A2C;    /* AA on cream/paper/cream-2 */
  --peach-text:#FFC9A8;    /* peach on dark surfaces */
  --sage:#5F7A5D;          /* checkmark green — AA on light surfaces */
  --wa:#25D366;            /* bright green — icon fills only */
  --wa-btn:#0E7A6D;        /* WhatsApp brand green — AA with white text (5.0:1) */
  --wa-btn-hover:#0A6055;
  --wa-dark:#128C7E;
  --radius:20px;
  --radius-sm:14px;
  --shadow-s:0 2px 8px rgba(70,55,40,.05);
  --shadow-m:0 10px 30px rgba(70,55,40,.08);
  --shadow-l:0 24px 60px rgba(70,55,40,.12);
  --container:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:'Noto Sans KR',-apple-system,BlinkMacSystemFont,'Malgun Gothic','Apple SD Gothic Neo',sans-serif;
  --font-serif:'Gowun Batang','Noto Sans KR',serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  background:var(--cream);
  color:var(--ink);
  line-height:1.75;
  font-size:16px;
  letter-spacing:-0.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;line-height:1.28;letter-spacing:-0.035em;font-weight:800;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.container-narrow{max-width:840px;}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 24px;border-radius:999px;border:1px solid transparent;
  font-weight:700;font-size:15.5px;letter-spacing:-0.02em;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease);
  white-space:nowrap;
}
.btn svg{width:19px;height:19px;flex:0 0 auto;}
.btn-lg{padding:17px 30px;font-size:16.5px;}
.btn-xl{padding:19px 36px;font-size:17.5px;}

.btn-wa{background:var(--wa-btn);color:#fff;box-shadow:0 8px 22px rgba(14,122,109,.28);}
.btn-wa:hover{background:var(--wa-btn-hover);transform:translateY(-2px);box-shadow:0 14px 30px rgba(14,122,109,.34);}

.btn-ghost{background:var(--paper);color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-s);}
.btn-ghost:hover{border-color:var(--peach);color:var(--peach-deep);transform:translateY(-2px);}

.btn-ink{background:var(--ink);color:#fff;}
.btn-ink:hover{background:#463D35;transform:translateY(-2px);}

/* ================= HEADER ================= */
.header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  background:rgba(250,246,240,.82);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 2px 18px rgba(70,55,40,.06);background:rgba(250,246,240,.94);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:74px;}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-crown{width:30px;height:30px;flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:15.5px;font-weight:900;letter-spacing:.04em;}
.brand-text small{font-size:10.5px;color:var(--muted);letter-spacing:-0.01em;font-weight:500;}

.nav{display:flex;align-items:center;gap:30px;margin-left:auto;}
.nav a{font-size:15px;font-weight:600;color:var(--ink-2);position:relative;padding:6px 0;transition:color .2s var(--ease);}
.nav a::after{
  content:'';position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--peach);border-radius:2px;transition:right .3s var(--ease);
}
.nav a:hover{color:var(--peach-deep);}
.nav a:hover::after{right:0;}

.nav-cta{padding:11px 20px;font-size:14.5px;}

.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--paper);
  border-radius:12px;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease),opacity .25s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ================= HERO ================= */
.hero{
  position:relative;padding:130px 0 66px;
  background:
    radial-gradient(1100px 520px at 78% 8%,#FDEDE3 0%,rgba(253,237,227,0) 62%),
    radial-gradient(820px 420px at 4% 88%,#F1F0E6 0%,rgba(241,240,230,0) 60%),
    var(--cream);
  overflow:hidden;
}
.hero::after{
  content:'';position:absolute;inset:auto 0 0 0;height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}

.eyebrow{
  font-size:12.5px;font-weight:800;letter-spacing:.16em;color:var(--peach-deep);
  text-transform:uppercase;margin-bottom:16px;
}
.hero h1{
  font-size:clamp(2.05rem,4.1vw,3.3rem);
  font-weight:900;line-height:1.24;letter-spacing:-0.045em;
}
.hero h1 .accent{position:relative;color:var(--peach-deep);white-space:nowrap;}
.hero h1 .accent::after{
  content:'';position:absolute;left:0;right:0;bottom:6px;height:9px;
  background:rgba(232,121,74,.18);border-radius:4px;z-index:-1;
}
.hero h1 em{font-family:var(--font-serif);font-style:italic;font-weight:700;color:var(--ink);}

.hero-sub{margin-top:22px;font-size:17px;color:var(--ink-2);line-height:1.85;max-width:560px;}
.hero-sub strong{color:var(--peach-deep);font-weight:800;}

.hero-cta{display:flex;flex-wrap:wrap;gap:13px;margin-top:32px;}

.hero-chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px;}
.hero-chips li{
  font-size:13px;font-weight:700;color:var(--ink-2);
  background:var(--paper);border:1px solid var(--line);border-radius:999px;
  padding:8px 15px;box-shadow:var(--shadow-s);
}

/* hero visual: 1:1 images in a soft collage */
.hero-visual{position:relative;padding:22px 0 34px 34px;}
.hv-main{
  width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:26px;
  box-shadow:var(--shadow-l);border:8px solid var(--paper);
}
.hv-sub1,.hv-sub2{
  position:absolute;width:41%;aspect-ratio:1/1;object-fit:cover;
  border-radius:20px;border:7px solid var(--paper);box-shadow:var(--shadow-m);
}
.hv-sub1{right:-14px;bottom:-6px;transform:rotate(3.2deg);}
.hv-sub2{left:-26px;top:8px;transform:rotate(-4deg);width:34%;}
.hv-card{
  position:absolute;right:16px;top:-6px;
  background:var(--ink);color:#fff;border-radius:18px;
  padding:14px 18px;display:flex;align-items:center;gap:11px;
  box-shadow:var(--shadow-m);
}
.hv-card strong{font-size:27px;font-weight:900;letter-spacing:-0.04em;color:var(--peach-text);}
.hv-card span{font-size:12px;line-height:1.35;color:#E9E2DA;font-weight:600;}

/* ================= MARQUEE ================= */
.marquee{
  background:var(--ink);color:#F6EFE7;overflow:hidden;
  padding:15px 0;border-top:1px solid rgba(255,255,255,.06);
}
.marquee-track{
  display:flex;align-items:center;gap:16px;white-space:nowrap;
  animation:slide 34s linear infinite;width:max-content;
}
.marquee-track span{font-size:14.5px;font-weight:700;letter-spacing:-0.01em;opacity:.92;}
.marquee-track i{color:var(--peach);font-style:normal;opacity:.8;}
@keyframes slide{from{transform:translateX(0);}to{transform:translateX(-50%);}}
@media (prefers-reduced-motion:reduce){.marquee-track{animation:none;}}

/* ================= SECTIONS ================= */
.section{padding:96px 0;}
.section-alt{background:var(--cream-2);}
.section-head{max-width:720px;margin:0 auto 52px;text-align:center;}
.section-head h2{font-size:clamp(1.6rem,2.9vw,2.35rem);font-weight:900;letter-spacing:-0.04em;}
.section-sub{margin-top:16px;color:var(--muted);font-size:16px;line-height:1.8;}

/* ---------- WHY ---------- */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.why-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 26px;box-shadow:var(--shadow-s);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);
}
.why-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-m);border-color:#F0D9C9;}
.why-icon{
  width:52px;height:52px;border-radius:15px;background:var(--peach-soft);color:var(--peach-deep);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.why-icon svg{width:26px;height:26px;}
.why-card h3{font-size:17.5px;font-weight:800;margin-bottom:10px;}
.why-card p{font-size:14.5px;color:var(--muted);line-height:1.75;}

/* ---------- FILTERS ---------- */
.filters{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;margin-bottom:36px;}
.filter{
  padding:10px 20px;border-radius:999px;border:1px solid var(--line);
  background:var(--paper);color:var(--ink-2);font-size:14.5px;font-weight:700;
  transition:all .25s var(--ease);
}
.filter:hover{border-color:var(--peach);color:var(--peach-deep);}
.filter.is-active{background:var(--ink);color:#fff;border-color:var(--ink);}

/* ---------- PRODUCT GRID ---------- */
.p-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.p-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-s);display:flex;flex-direction:column;
  transition:transform .38s var(--ease),box-shadow .38s var(--ease),border-color .38s var(--ease);
}
.p-card:hover{transform:translateY(-7px);box-shadow:var(--shadow-m);border-color:#F0D9C9;}
.p-card.is-hidden{display:none;}

.p-media{position:relative;background:var(--cream-2);}
.p-media img{width:100%;aspect-ratio:1/1;object-fit:cover;transition:transform .6s var(--ease);}
.p-card:hover .p-media img{transform:scale(1.045);}
.p-badge{
  position:absolute;left:14px;top:14px;
  background:rgba(43,38,34,.82);color:#fff;font-size:11.5px;font-weight:700;
  padding:6px 12px;border-radius:999px;letter-spacing:-0.01em;
  backdrop-filter:blur(6px);
}

.p-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.p-body h3{font-size:17.5px;font-weight:800;letter-spacing:-0.03em;}
.p-en{font-size:12.5px;color:var(--peach-deep);font-weight:700;letter-spacing:.01em;margin-top:5px;}
.p-desc{font-size:14px;color:var(--muted);margin-top:11px;line-height:1.7;}
.p-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;}
.p-tags span{font-size:11.5px;font-weight:700;color:var(--ink-2);background:var(--cream-2);border-radius:8px;padding:4px 9px;}
.p-wa{
  margin-top:18px;padding:12px 18px;border-radius:12px;text-align:center;
  background:var(--wa-btn);color:#fff;font-weight:800;font-size:14.5px;
  transition:background .25s var(--ease),transform .25s var(--ease);
}
.p-wa:hover{background:var(--wa-btn-hover);transform:translateY(-2px);}

/* ---------- STEPS ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s;}
.step{
  position:relative;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius);padding:32px 26px;box-shadow:var(--shadow-s);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.step:hover{transform:translateY(-6px);box-shadow:var(--shadow-m);}
.step-no{
  display:block;font-size:12.5px;font-weight:900;letter-spacing:.14em;
  color:var(--peach-deep);margin-bottom:14px;
}
.step h3{font-size:17px;font-weight:800;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.75;}
.oem-cta{text-align:center;margin-top:44px;}

/* ---------- QUALITY ---------- */
.quality-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;}
.quality-copy h2{font-size:clamp(1.6rem,2.9vw,2.3rem);font-weight:900;letter-spacing:-0.04em;}
.q-list{margin:28px 0 32px;display:flex;flex-direction:column;gap:15px;}
.q-list li{display:flex;gap:12px;font-size:15.5px;color:var(--ink-2);line-height:1.7;font-weight:500;}
.q-list svg{width:21px;height:21px;flex:0 0 auto;color:var(--sage);margin-top:5px;}
.q-note{font-size:12px;color:var(--muted);font-weight:500;}

.quality-visual{position:relative;padding:0 0 30px 30px;}
.quality-visual img{
  width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:24px;
  border:8px solid var(--paper);box-shadow:var(--shadow-l);
}
.q-chip{
  position:absolute;background:var(--paper);border:1px solid var(--line);
  border-radius:16px;padding:13px 17px;box-shadow:var(--shadow-m);
  display:flex;flex-direction:column;line-height:1.25;
}
.q-chip strong{font-size:19px;font-weight:900;color:var(--peach-deep);letter-spacing:-0.03em;}
.q-chip span{font-size:11.5px;color:var(--muted);font-weight:600;}
.q-chip1{left:-14px;top:14%;}
.q-chip2{right:-12px;top:44%;}
.q-chip3{left:6%;bottom:0;}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-list details{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-sm);
  box-shadow:var(--shadow-s);overflow:hidden;transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.faq-list details[open]{border-color:#F0D9C9;box-shadow:var(--shadow-m);}
.faq-list summary{
  cursor:pointer;list-style:none;padding:21px 54px 21px 24px;position:relative;
  font-size:16.5px;font-weight:800;letter-spacing:-0.03em;color:var(--ink);
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-x{
  position:absolute;right:22px;top:50%;width:14px;height:14px;transform:translateY(-50%);
}
.faq-x::before,.faq-x::after{
  content:'';position:absolute;background:var(--peach-deep);border-radius:2px;transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.faq-x::before{left:0;right:0;top:6px;height:2px;}
.faq-x::after{top:0;bottom:0;left:6px;width:2px;}
.faq-list details[open] .faq-x::after{transform:scaleY(0);opacity:0;}
.faq-a{padding:0 24px 22px;}
.faq-a p{font-size:15px;color:var(--muted);line-height:1.85;}
.faq-a strong{color:var(--ink-2);font-weight:800;}

/* ---------- CONTACT ---------- */
.contact{padding-bottom:110px;}
.contact-card{
  background:
    radial-gradient(700px 340px at 12% 0%,#FDF0E7 0%,rgba(253,240,231,0) 60%),
    var(--paper);
  border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow-m);
  padding:64px 48px;text-align:center;
}
.contact-card h2{font-size:clamp(1.7rem,3.1vw,2.5rem);font-weight:900;letter-spacing:-0.04em;}
.contact-sub{margin:18px auto 0;max-width:600px;color:var(--muted);font-size:16px;line-height:1.85;}
.contact-sub strong{color:var(--peach-deep);font-weight:800;}
.contact-btns{display:flex;flex-wrap:wrap;gap:13px;justify-content:center;margin-top:32px;}
.contact-note{margin-top:20px;font-size:13.5px;color:var(--muted);}

/* ---------- FOOTER ---------- */
.footer{background:#241F1B;color:#D9D1C8;padding:66px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.1fr;gap:48px;padding-bottom:48px;}
.footer .brand-text strong{color:#fff;}
.footer .brand-text small{color:#A79C90;}
.footer-names{margin-top:20px;font-size:14.5px;font-weight:700;color:#EFE7DE;line-height:1.7;}
.footer-desc{margin-top:12px;font-size:13.5px;color:#A79C90;line-height:1.8;}
.footer-nav,.footer-contact{display:flex;flex-direction:column;gap:11px;}
.footer h4{font-size:13px;font-weight:800;letter-spacing:.14em;color:#8E8378;text-transform:uppercase;margin-bottom:6px;}
.footer-nav a,.footer-contact a{font-size:14.5px;color:#D9D1C8;transition:color .25s var(--ease);width:fit-content;}
.footer-nav a:hover,.footer-contact a:hover{color:var(--peach-text);}
.footer-wa{color:#4FE38B !important;font-weight:800;}
.footer-wa:hover{color:#7BF0AB !important;}
.footer-hours{font-size:12.5px;color:#9A8F84;margin-top:6px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:26px 24px 30px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  font-size:12.5px;color:#9A8F84;
}
.footer-kw{color:#9A8F84;}

/* ---------- WhatsApp float & mobile bar ---------- */
.wa-float{
  position:fixed;right:22px;bottom:26px;z-index:950;
  width:58px;height:58px;border-radius:50%;background:var(--wa);color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 28px rgba(14,122,109,.36);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
  animation:pulse 2.8s ease-in-out infinite;
}
.wa-float svg{width:30px;height:30px;}
.wa-float:hover{transform:scale(1.08);box-shadow:0 14px 34px rgba(14,122,109,.44);}
@keyframes pulse{
  0%,100%{box-shadow:0 10px 28px rgba(14,122,109,.36),0 0 0 0 rgba(37,211,102,.5);}
  50%{box-shadow:0 10px 28px rgba(14,122,109,.36),0 0 0 16px rgba(37,211,102,0);}
}
@media (prefers-reduced-motion:reduce){.wa-float{animation:none;}}

.mob-bar{display:none;}

/* ================= RESPONSIVE ================= */
@media (max-width:1080px){
  .why-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .p-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:900px){
  .hero{padding-top:108px;}
  .hero-grid{grid-template-columns:1fr;gap:46px;}
  .hero-sub{max-width:none;}
  .hero-visual{padding:0 0 22px 22px;max-width:560px;}
  .hv-sub2{left:-18px;}
  .quality-grid{grid-template-columns:1fr;gap:44px;}
  .quality-visual{max-width:560px;padding-left:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .footer-brand{grid-column:1/-1;}

  .nav{
    position:fixed;left:0;right:0;top:74px;
    background:var(--paper);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;
    padding:8px 24px 20px;
    box-shadow:0 14px 30px rgba(70,55,40,.08);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:transform .3s var(--ease),opacity .3s var(--ease);
    margin-left:0;
  }
  .nav.is-open{transform:none;opacity:1;pointer-events:auto;}
  .nav a{padding:15px 0;border-bottom:1px solid var(--line);font-size:16px;}
  .nav a::after{display:none;}
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-cta{display:none;}
}
@media (max-width:720px){
  body{font-size:15.5px;}
  .container{padding:0 18px;}
  .section{padding:70px 0;}
  .section-head{margin-bottom:38px;}
  .why-grid,.steps,.p-grid{grid-template-columns:1fr;gap:18px;}
  .contact-card{padding:44px 22px;border-radius:22px;}
  .contact-btns{flex-direction:column;align-items:stretch;}
  .contact-btns .btn{width:100%;}
  .hero-cta .btn{width:100%;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hv-card{padding:11px 14px;}
  .hv-card strong{font-size:22px;}
  .q-chip1{left:-6px;}
  .q-chip3{left:0;}

  /* mobile sticky bar */
  .mob-bar{
    display:grid;grid-template-columns:1fr 1fr;gap:1px;
    position:fixed;left:0;right:0;bottom:0;z-index:940;
    background:var(--line);border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mob-btn{
    display:flex;align-items:center;justify-content:center;
    padding:15px 8px;font-size:15px;font-weight:800;letter-spacing:-0.02em;
  }
  .mob-wa{background:var(--wa-btn);color:#fff;}
  .mob-prod{background:var(--paper);color:var(--ink);}
  .wa-float{bottom:76px;right:16px;width:52px;height:52px;}
  .wa-float svg{width:26px;height:26px;}
  body{padding-bottom:56px;}
}

/* focus visibility */
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2.5px solid var(--peach);outline-offset:3px;border-radius:6px;
}

/* print */
@media print{
  .header,.wa-float,.mob-bar,.marquee{display:none;}
}