/* Joyantek — global stylesheet */

:root{
  --ink:#0e2438;
  --navy:#0b2c4d;
  --navy-d:#071e35;
  --accent:#0f8a7a;
  --accent-d:#0b6d60;
  --gold:#c9a227;      /* company mark; the gate's lettering, in gold on navy */
  --bg:#ffffff;
  --soft:#f4f7fa;
  --line:#e3eaf1;
  --muted:#5d7285;
  --radius:10px;
  --max:1140px;
}

*{box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.65;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}

/* Chinese runs a little denser than Latin — give it a touch more air. */
html.i18n-zh body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  line-height:1.8;
}

img{max-width:100%;display:block;}

a{color:var(--accent-d);text-decoration:none;}
a:hover{text-decoration:underline;}

h1,h2,h3,h4{line-height:1.25;margin:0 0 .5em;font-weight:650;letter-spacing:-.01em;}
h1{font-size:2.6rem;}
h2{font-size:1.9rem;}
h3{font-size:1.15rem;}
p{margin:0 0 1em;}

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

/* ---------- language switch ---------- */

.i18n-en [data-lang="zh"]{display:none !important;}
.i18n-zh [data-lang="en"]{display:none !important;}

/* Sections that only make sense to one audience. The Chinese pages read as a
   company profile; the dry document and shipping-terms tables stay on the
   English side, where buyers actually work from them. Unlike the paired
   data-lang nodes, these are whole sections and are not meant to mirror. */
.i18n-en .zh-only{display:none !important;}
.i18n-zh .en-only{display:none !important;}
/* Once such a section is hidden the two soft sections either side of it end up
   touching and their divider lines double up. Drop one of them. */
.i18n-en .zh-only + .section-soft,
.i18n-zh .en-only + .section-soft{border-top:0;}

.lang-switch{
  display:inline-flex;align-items:center;flex:none;
  border:1px solid var(--line);border-radius:999px;padding:2px;background:#fff;
}
.lang-switch button{
  font:inherit;font-size:.82rem;font-weight:600;line-height:1;
  padding:6px 12px;border:0;border-radius:999px;background:transparent;
  color:var(--muted);cursor:pointer;transition:background .15s,color .15s;
}
.lang-switch button:hover{color:var(--accent-d);}
.lang-switch button.on{background:var(--navy);color:#fff;}

/* ---------- header ---------- */

.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}

.site-header .container{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:70px;
}

.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.2rem;color:var(--navy);letter-spacing:-.02em;flex:none;}
.logo:hover{text-decoration:none;}
.logo .mark{
  width:32px;height:32px;border-radius:7px;flex:none;object-fit:cover;
}
.logo .wordmark{display:flex;flex-direction:column;line-height:1.1;}
.logo .wordmark small{
  font-size:.6rem;font-weight:600;letter-spacing:.02em;color:var(--muted);
  text-transform:none;letter-spacing:0;
}

.header-right{display:flex;align-items:center;gap:22px;}

.site-nav{display:flex;align-items:center;gap:26px;}
.site-nav a{
  font-size:.94rem;color:var(--ink);font-weight:500;padding:6px 0;
  border-bottom:2px solid transparent;
}
.site-nav a:hover{text-decoration:none;color:var(--accent-d);}
.site-nav a.active{color:var(--accent-d);border-bottom-color:var(--accent);}

/* ---------- buttons ---------- */

.btn{
  display:inline-block;padding:12px 26px;border-radius:var(--radius);
  font-size:.95rem;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .15s,color .15s,border-color .15s;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-d);color:#fff;}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff;}
.btn-outline{border-color:var(--line);color:var(--navy);background:#fff;}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-d);}
.btn-sm{padding:8px 16px;font-size:.86rem;}

/* ---------- hero ---------- */

.hero{
  background:
    radial-gradient(900px 420px at 80% -10%, rgba(15,138,122,.35), transparent 65%),
    linear-gradient(150deg,var(--navy) 0%,var(--navy-d) 60%,#04182b 100%);
  color:#fff;
  padding:96px 0 104px;
  position:relative;
  overflow:hidden;
}

/* Hero with a factory photograph behind it. The gradient is the veil that
   keeps the headline legible over the picture. */
.hero.hero-photo{
  background-image:
    linear-gradient(100deg, rgba(6,28,48,.94) 0%, rgba(6,28,48,.84) 42%, rgba(6,28,48,.55) 100%),
    url("../assets/img/plant-outdoor-units-1600.jpg");
  background-size:cover;
  background-position:center right;
}

.hero .eyebrow{
  display:inline-block;font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;
  color:#7fd9cb;border:1px solid rgba(127,217,203,.35);border-radius:999px;
  padding:5px 14px;margin-bottom:22px;
}
.hero h1{color:#fff;max-width:16em;}
.hero p{color:#c3d4e2;font-size:1.1rem;max-width:46em;margin-bottom:32px;}
.hero p.sub{font-size:1rem;color:#9fb4c7;margin-bottom:22px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* Company tagline. Sits above the h1 in the hero and under the brand name in
   the footer, so it is read as the company's own line rather than a headline. */
.hero .tagline{
  display:block;font-size:1.04rem;font-weight:600;letter-spacing:.16em;
  color:#7fd9cb;margin:0 0 16px;
}
.site-footer .tagline{
  display:block;font-size:.9rem;letter-spacing:.1em;
  color:#7fd9cb;margin:-4px 0 14px;
}

/* ---------- sections ---------- */

.section{padding:76px 0;}
.section-soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:44em;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head.wide{max-width:56em;}
.eyebrow{
  font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent-d);font-weight:700;margin-bottom:10px;
  display:block;
}
.lead{font-size:1.08rem;color:var(--muted);}

/* ---------- grids ---------- */

.grid{display:grid;gap:24px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;border-top:3px solid var(--accent);
}
.card h3{color:var(--navy);margin-bottom:8px;}
.card p{color:var(--muted);font-size:.95rem;margin:0;}
.card .tag{
  display:inline-block;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--accent-d);font-weight:700;margin-bottom:8px;
}

.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;}
.stat b{display:block;font-size:1.9rem;color:var(--navy);line-height:1.1;}
.stat span{font-size:.88rem;color:var(--muted);}

/* ---------- photographs ---------- */

.photo-grid{display:grid;gap:20px;grid-template-columns:repeat(2,1fr);}
.photo-grid.three{grid-template-columns:repeat(3,1fr);}

figure.photo{margin:0;border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line);}
figure.photo img{width:100%;height:260px;object-fit:cover;display:block;}
figure.photo.tall img{height:380px;}
figure.photo figcaption{
  padding:12px 16px;font-size:.86rem;color:var(--muted);
  border-top:1px solid var(--line);
}

.banner-photo{margin:0 0 40px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);}
.banner-photo img{width:100%;height:340px;object-fit:cover;display:block;}

/* ---------- photo sliders ---------- */

.slider{position:relative;}

.slider .track{
  display:flex;gap:20px;overflow-x:auto;
  scroll-snap-type:x mandatory;scroll-behavior:smooth;
  scrollbar-width:none;-ms-overflow-style:none;
  padding:2px;   /* keeps the card borders from being clipped */
}
.slider .track::-webkit-scrollbar{display:none;}
.slider .track > *{
  flex:0 0 calc((100% - 40px) / 3);
  scroll-snap-align:start;
  margin:0;
}
.slider.cols-2 .track > *{flex-basis:calc((100% - 20px) / 2);}
.slider.cols-1 .track > *{flex-basis:100%;}

.slider .s-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:rgba(255,255,255,.94);color:var(--navy);
  font:inherit;font-size:1.5rem;line-height:0;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 3px 14px rgba(14,36,56,.16);
  transition:background .15s,color .15s,border-color .15s,opacity .15s;
}
.slider .s-nav:hover{background:var(--navy);border-color:var(--navy);color:#fff;}
.slider .s-nav:disabled{opacity:.32;cursor:default;}
.slider .s-nav:disabled:hover{background:rgba(255,255,255,.94);border-color:var(--line);color:var(--navy);}
.slider .s-prev{left:-16px;}
.slider .s-next{right:-16px;}

.slider .s-dots{display:flex;gap:8px;justify-content:center;margin-top:20px;}
.slider .s-dots button{
  width:8px;height:8px;padding:0;border:0;border-radius:50%;
  background:var(--line);cursor:pointer;transition:width .2s,background .2s;
}
.slider .s-dots button.on{background:var(--accent);width:22px;border-radius:999px;}

/* ---------- corporate creed list ---------- */

.creed{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px;margin:0;}
.creed > div{
  display:grid;grid-template-columns:7.5em 1fr;gap:16px;align-items:baseline;
  padding:13px 0;border-bottom:1px solid var(--line);
}
.creed dt{font-size:.78rem;letter-spacing:.06em;font-weight:700;color:var(--accent-d);}
.creed dd{margin:0;font-size:.95rem;color:var(--ink);}

/* ---------- product cards ---------- */

.product{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;display:flex;flex-direction:column;position:relative;
}
.product.featured{border-color:var(--accent);border-top-width:3px;}
.product .pname{font-size:1.05rem;font-weight:650;color:var(--navy);margin-bottom:2px;}
.product .pcn{font-size:.86rem;color:var(--muted);margin-bottom:14px;}
.product .chem{
  font-size:.82rem;color:var(--muted);font-style:italic;
  margin:0 0 12px;line-height:1.5;
}
.product dl{margin:0 0 16px;font-size:.9rem;}
.product dt{color:var(--muted);font-size:.76rem;letter-spacing:.06em;text-transform:uppercase;margin-top:10px;}
.product dd{margin:1px 0 0;color:var(--ink);}
.product .foot{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);font-size:.86rem;}
.product .foot span + span{margin-left:12px;}

.badge{
  position:absolute;top:16px;right:16px;
  font-size:.66rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  background:var(--accent);color:#fff;border-radius:999px;padding:4px 10px;
  line-height:1;
}

/* ---------- spec table ---------- */

.spec{width:100%;border-collapse:collapse;font-size:.94rem;}
.spec th,.spec td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top;}
.spec th{background:var(--soft);color:var(--navy);font-weight:650;font-size:.84rem;letter-spacing:.04em;text-transform:uppercase;border-bottom:1px solid var(--line);}
.spec tr:last-child td{border-bottom:none;}
.spec td.num{white-space:nowrap;}

/* ---------- CTA band ---------- */

.cta{
  background:linear-gradient(135deg,var(--navy),var(--navy-d));
  color:#fff;border-radius:var(--radius);padding:52px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta h2{color:#fff;margin:0 0 8px;}
.cta p{color:#c3d4e2;margin:0;max-width:40em;}

/* ---------- contact ---------- */

.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start;}
.info-list{list-style:none;padding:0;margin:0;}
.info-list li{padding:16px 0;border-bottom:1px solid var(--line);}
.info-list .k{font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:3px;}
.info-list .v{font-weight:600;color:var(--navy);}
.info-list .v a{font-weight:600;}
.info-list .v .sub{display:block;font-weight:400;font-size:.88rem;color:var(--muted);margin-top:2px;}

form label{display:block;font-size:.84rem;font-weight:600;color:var(--navy);margin-bottom:6px;}
form input,form select,form textarea{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:8px;
  font:inherit;font-size:.94rem;color:var(--ink);background:#fff;margin-bottom:18px;
}
form input:focus,form select:focus,form textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(15,138,122,.12);
}
form textarea{min-height:130px;resize:vertical;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-note{font-size:.82rem;color:var(--muted);}

/* ---------- footer ---------- */

.site-footer{background:var(--navy-d);color:#9fb4c7;padding:56px 0 28px;font-size:.9rem;}
.site-footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:40px;margin-bottom:40px;}
.site-footer h4{color:#fff;font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px;}
.site-footer a{color:#9fb4c7;}
.site-footer a:hover{color:#fff;}
.site-footer ul{list-style:none;padding:0;margin:0;}
.site-footer li{margin-bottom:9px;}
.site-footer .brand{font-weight:700;color:#fff;font-size:1.1rem;margin-bottom:12px;display:block;}
.site-footer .bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.84rem;}
.site-footer .legal{color:#7d93a8;font-size:.82rem;margin-top:10px;}

/* ---------- responsive ---------- */

@media (max-width:1000px){
  .header-right{gap:14px;}
  .site-nav{gap:18px;}
}

@media (max-width:900px){
  h1{font-size:2.05rem;}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .contact-grid{grid-template-columns:1fr;gap:36px;}
  .site-footer .cols{grid-template-columns:1fr 1fr;}
  .photo-grid,.photo-grid.three{grid-template-columns:1fr;}
  .banner-photo img{height:260px;}
  .slider .track > *{flex-basis:calc((100% - 20px) / 2);}
  .slider .s-prev{left:-8px;}
  .slider .s-next{right:-8px;}
  .creed{grid-template-columns:1fr;gap:0;}
}

@media (max-width:640px){
  .site-header .container{height:auto;padding-top:14px;padding-bottom:14px;flex-direction:column;gap:12px;}
  .header-right{flex-direction:column;gap:12px;width:100%;}
  .site-nav{gap:18px;flex-wrap:wrap;justify-content:center;}
  .hero{padding:64px 0 72px;}
  .hero.hero-photo{background-image:
    linear-gradient(rgba(6,28,48,.9), rgba(6,28,48,.9)),
    url("../assets/img/plant-outdoor-units-800.jpg");}
  .section{padding:56px 0;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
  .cta{padding:36px 26px;}
  .site-footer .cols{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;gap:0;}
  figure.photo img{height:220px;}
  .slider .track > *{flex-basis:100%;}
  .slider .s-nav{width:38px;height:38px;font-size:1.3rem;}
  .slider .s-prev{left:4px;}
  .slider .s-next{right:4px;}
  .creed > div{grid-template-columns:1fr;gap:4px;}
}