/* ==========================================================================
   Zhuofan WPC — Global Stylesheet
   Jinhua Zhuofan Decoration Materials Co., Ltd. | Jinhua, Zhejiang, China
   ========================================================================== */

:root{
  /* Brand palette — industrial forest */
  --ink-900:#0d1a14;
  --ink-800:#12241b;
  --ink-700:#1a3328;
  --ink-600:#24463a;
  --ink-500:#2f5a4a;
  --forest:#1f6f52;
  --forest-lt:#2e8f6b;
  --leaf:#4fb98a;
  --leaf-soft:#e6f5ee;
  --wood:#b1743a;
  --wood-lt:#d09a5e;
  --sand:#f3ede4;
  --sand-2:#e7ddd0;
  --line:#e3e0d9;
  --paper:#ffffff;
  --paper-2:#fbfaf8;
  --text:#1b241f;
  --text-2:#55635c;
  --text-3:#8a958f;
  --amber:#e0a126;
  --danger:#c0392b;

  --radius:10px;
  --radius-lg:18px;
  --shadow-sm:0 1px 2px rgba(13,26,20,.06),0 2px 8px rgba(13,26,20,.05);
  --shadow:0 4px 14px rgba(13,26,20,.08),0 12px 32px rgba(13,26,20,.07);
  --shadow-lg:0 18px 50px rgba(13,26,20,.16);
  --wrap:1200px;
  --font:"Inter","Segoe UI",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;font-family:var(--font);color:var(--text);background:var(--paper);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4,h5{margin:0 0 .5em;line-height:1.2;font-weight:750;letter-spacing:-.02em;color:var(--ink-900);}
h1{font-size:clamp(2rem,4.6vw,3.35rem);}
h2{font-size:clamp(1.6rem,3vw,2.3rem);}
h3{font-size:1.25rem;}
h4{font-size:1.05rem;}
p{margin:0 0 1rem;}
ul,ol{margin:0 0 1rem;padding-left:1.2rem;}
li{margin-bottom:.4rem;}
button{font-family:inherit;}
::selection{background:var(--leaf);color:#fff;}

.wrap{width:min(100% - 44px,var(--wrap));margin-inline:auto;}
.section{padding:clamp(56px,8vw,104px) 0;}
.section--tight{padding:clamp(40px,5vw,64px) 0;}
.section--sand{background:var(--sand);}
.section--paper2{background:var(--paper-2);}
.section--ink{background:var(--ink-900);color:#dfe9e4;}
.section--ink h2,.section--ink h3{color:#fff;}

/* --- eyebrow / section heads -------------------------------------------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.74rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  color:var(--forest);margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--leaf);border-radius:2px;}
.section--ink .eyebrow{color:var(--leaf);}
.sec-head{max-width:760px;margin-bottom:clamp(32px,4vw,52px);}
.sec-head--center{margin-inline:auto;text-align:center;}
.sec-head p{color:var(--text-2);font-size:1.06rem;margin-bottom:0;}
.section--ink .sec-head p{color:#a9c2b8;}

/* --- buttons ------------------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:var(--radius);border:1.5px solid transparent;
  font-weight:700;font-size:.95rem;cursor:pointer;transition:.22s ease;
  white-space:nowrap;line-height:1.2;
}
.btn svg{flex:none;}
.btn--primary{background:var(--forest);color:#fff;box-shadow:0 6px 18px rgba(31,111,82,.28);}
.btn--primary:hover{background:var(--ink-600);transform:translateY(-2px);box-shadow:0 10px 26px rgba(31,111,82,.34);}
.btn--wood{background:var(--wood);color:#fff;}
.btn--wood:hover{background:#935c28;transform:translateY(-2px);}
.btn--ghost{border-color:rgba(255,255,255,.34);color:#fff;}
.btn--ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.6);}
.btn--outline{border-color:var(--line);background:#fff;color:var(--ink-800);}
.btn--outline:hover{border-color:var(--forest);color:var(--forest);background:var(--leaf-soft);}
.btn--sm{padding:10px 18px;font-size:.86rem;}
.btn--lg{padding:17px 34px;font-size:1.02rem;}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;}

/* ==========================================================================
   HEADER
   ========================================================================== */
.topbar{
  background:var(--ink-900);color:#b9cdc5;font-size:.8rem;
  padding:9px 0;border-bottom:1px solid rgba(255,255,255,.07);
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;}
.topbar-lead{display:flex;align-items:center;gap:10px;color:#cfe0d8;}
.topbar-lead b{color:var(--leaf);font-weight:700;}
.topbar-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.topbar-links a{display:inline-flex;align-items:center;gap:6px;transition:.2s;color:#b9cdc5;}
.topbar-links a:hover{color:#fff;}

.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 4px 22px rgba(13,26,20,.1);}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px;}

.brand{display:flex;align-items:center;gap:11px;flex:none;}
.brand-mark{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(140deg,var(--forest),var(--ink-700));flex:0 0 auto;box-shadow:0 4px 12px rgba(13,26,20,.14);}
.brand-mark .brand-img{width:29px;height:29px;background:none;border-radius:0;object-fit:contain;}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text b{font-size:1.12rem;font-weight:800;color:var(--ink-900);letter-spacing:-.02em;}
.brand-text span{font-size:.66rem;letter-spacing:.13em;text-transform:uppercase;color:var(--text-3);font-weight:700;}

.menu{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0;}
.menu > li{position:relative;margin:0;}
.menu > li > a{
  display:block;padding:10px 14px;font-size:.92rem;font-weight:650;color:var(--ink-700);
  border-radius:8px;transition:.18s;
}
.menu > li > a:hover,.menu > li.active > a{color:var(--forest);background:var(--leaf-soft);}
.submenu{
  position:absolute;top:calc(100% + 8px);left:0;min-width:250px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);
  list-style:none;margin:0;padding:8px;opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:.2s ease;
}
.menu > li:hover .submenu{opacity:1;visibility:visible;transform:translateY(0);}
.submenu li{margin:0;}
.submenu a{display:block;padding:9px 13px;border-radius:7px;font-size:.89rem;color:var(--text-2);font-weight:550;}
.submenu a:hover{background:var(--leaf-soft);color:var(--forest);}

.nav-tools{display:flex;align-items:center;gap:12px;}
.lang-dd{position:relative;}
.lang-cur{
  display:inline-flex;align-items:center;gap:7px;border:0;cursor:pointer;
  background:var(--sand-2);border-radius:9px;padding:8px 12px;
  font-size:.84rem;font-weight:700;color:var(--text-2);
}
.lang-cur:hover{background:#eceade;}
.lang-cur .caret{opacity:.55;}
.lang-menu{
  position:absolute;top:calc(100% + 6px);right:0;min-width:150px;padding:4px;
  background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow-lg);
  display:none;z-index:90;
}
.lang-menu.open{display:block;}
.lang-menu button{
  display:flex;align-items:center;gap:9px;width:100%;box-sizing:border-box;
  border:0;background:transparent;padding:8px 10px;border-radius:7px;cursor:pointer;
  font-size:.86rem;color:var(--text);text-align:left;
}
.lang-menu button:hover{background:#f5f3ec;}
.lang-menu button.on{background:#eaf1ec;color:var(--forest);font-weight:700;}
.lang-switch button{
  border:0;background:transparent;padding:6px 12px;border-radius:7px;cursor:pointer;
  font-size:.82rem;font-weight:700;color:var(--text-2);transition:.18s;
}
.brand-sub{font-size:.6rem;letter-spacing:.02em;text-transform:none;color:var(--text-3);font-weight:600;white-space:nowrap;}
.nav-search{position:relative;}
.nav-search input{
  width:150px;padding:8px 14px;border:1px solid var(--line);border-radius:999px;
  font:inherit;font-size:.84rem;background:var(--paper);color:var(--text);outline:none;
  transition:border-color .2s,width .25s;
}
.nav-search input:focus{border-color:var(--forest);width:200px;}
.nav-search-drop{
  position:absolute;top:calc(100% + 6px);right:0;width:330px;max-height:420px;overflow:auto;
  background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);
  display:none;z-index:80;
}
.nav-search-drop.open{display:block;}
.ns-item{display:flex;gap:10px;align-items:center;padding:8px 10px;color:var(--text);text-decoration:none;}
.ns-item:hover{background:#f5f3ec;}
.ns-item img{width:44px;height:44px;object-fit:cover;border-radius:8px;flex:none;}
.ns-item span{display:flex;flex-direction:column;font-size:.84rem;line-height:1.35;min-width:0;}
.ns-item i{font-style:normal;color:var(--text-3);font-size:.72rem;}
.ns-empty{padding:14px;font-size:.84rem;color:var(--text-3);}
.lang-switch button{display:inline-flex;align-items:center;gap:6px;}
.flag{width:20px;height:14px;border-radius:2px;flex:none;box-shadow:0 0 0 1px rgba(0,0,0,.1);}
@media(max-width:1120px){.nav-search{display:none;}}
.lang-switch button.on{background:#fff;color:var(--forest);box-shadow:var(--shadow-sm);}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:10px;cursor:pointer;align-items:center;justify-content:center;
}
.burger span{display:block;width:19px;height:2px;background:var(--ink-700);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:19px;height:2px;background:var(--ink-700);border-radius:2px;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* mobile drawer */
.mobile-menu{
  position:fixed;inset:74px 0 0 0;background:#fff;z-index:55;overflow-y:auto;
  transform:translateX(100%);transition:transform .3s ease;padding:20px 22px 60px;
}
.mobile-menu.open{transform:translateX(0);}
.mobile-menu ul{list-style:none;padding:0;margin:0;}
.mobile-menu > ul > li{border-bottom:1px solid var(--line);}
.mobile-menu a{display:block;padding:15px 4px;font-weight:700;color:var(--ink-800);font-size:1rem;}
.mobile-menu .sub{padding-left:16px;border-bottom:0;}
.mobile-menu .sub a{font-weight:550;font-size:.9rem;color:var(--text-2);padding:10px 4px;}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position:relative;background:var(--ink-900);color:#fff;overflow:hidden;
  padding:clamp(64px,9vw,120px) 0 clamp(60px,8vw,104px);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 480px at 88% 8%,rgba(79,185,138,.22),transparent 65%),
    radial-gradient(700px 420px at 4% 96%,rgba(177,116,58,.26),transparent 68%);
}
.hero-lines{
  position:absolute;inset:0;opacity:.5;
  background-image:repeating-linear-gradient(102deg,rgba(255,255,255,.05) 0 2px,transparent 2px 74px);
}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(28px,4vw,60px);align-items:center;}
.hero h1{color:#fff;margin-bottom:20px;}
.hero h1 em,.hero .hero-h2 em{font-style:normal;color:var(--leaf);}
.hero .hero-h2{font-size:clamp(2rem,4.6vw,3.35rem);color:#fff;margin-bottom:20px;}
.hero-lead{font-size:clamp(1rem,1.5vw,1.16rem);color:#bdd3ca;max-width:56ch;margin-bottom:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:100px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);
  font-size:.8rem;font-weight:650;color:#d5e5dd;
}
.chip svg{color:var(--leaf);}

.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:40px;
  background:rgba(255,255,255,.13);border-radius:var(--radius);overflow:hidden;
}
.hero-stats div{background:var(--ink-800);padding:20px 18px;}
.hero-stats b{display:block;font-size:clamp(1.4rem,2.4vw,1.95rem);color:var(--leaf);font-weight:800;line-height:1;}
.hero-stats span{font-size:.78rem;color:#9fb8ac;display:block;margin-top:7px;line-height:1.4;}

/* hero visual — product card stack */
.hero-visual{position:relative;}
.hero-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);padding:18px;backdrop-filter:blur(6px);
  box-shadow:0 24px 60px rgba(0,0,0,.34);
}
.hero-card h4{color:#fff;font-size:1rem;margin-bottom:4px;}
.hero-card p{color:#a9c2b8;font-size:.82rem;margin-bottom:14px;}
.plank-stack{display:grid;gap:9px;}
.plank{
  height:46px;border-radius:7px;position:relative;overflow:hidden;
  border:1px solid rgba(255,255,255,.16);
}
.plank::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(0,0,0,.16) 0 1px,transparent 1px 7px);
}
.plank--teak{background:linear-gradient(100deg,#8a5223,#b1743a 55%,#8a5223);}
.plank--oak{background:linear-gradient(100deg,#a8814d,#c9a06a 55%,#a8814d);}
.plank--walnut{background:linear-gradient(100deg,#5a3a22,#7d5230 55%,#5a3a22);}
.plank--grey{background:linear-gradient(100deg,#6c7570,#8b938d 55%,#6c7570);}
.plank--charcoal{background:linear-gradient(100deg,#3a4340,#515b57 55%,#3a4340);}
.plank span{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);z-index:2;
  font-size:.76rem;font-weight:700;color:rgba(255,255,255,.94);letter-spacing:.06em;
  text-shadow:0 1px 3px rgba(0,0,0,.45);
}

/* ---- hero--brand：第二屏（公司形象）= 白色底，与第一屏墨绿明确区分 ---- */
.hero--brand{
  background:
    radial-gradient(820px 460px at 82% 0%,rgba(79,185,138,.10),transparent 62%),
    linear-gradient(170deg,#ffffff 0%,#f6faf7 60%,#eef5f0 100%);
}
.hero--brand::before{
  background:
    radial-gradient(640px 380px at 4% 8%,rgba(79,185,138,.08),transparent 60%),
    radial-gradient(560px 340px at 97% 92%,rgba(177,116,58,.08),transparent 64%);
}
.hero--brand .eyebrow{color:var(--forest,#1f6f52);}
.hero--brand .hero-h2{color:#14231c;}
.hero--brand .hero-h2 em{color:var(--leaf);}
.hero--brand .hero-lead{color:#42544b;}
.hero--brand .chip{background:#fff;border-color:var(--line,#e2e8e4);color:#33463d;}
.hero--brand .chip svg{color:var(--leaf);}
.hero--brand .hero-card{background:#fbfdfc;border-color:var(--line,#e2e8e4);box-shadow:0 20px 48px rgba(20,35,28,.10);}
.hero--brand .hero-card h4{color:#14231c;}
.hero--brand .hero-card p{color:#5c6f65;}
.hero--brand .hero-stats{background:rgba(20,35,28,.10);}
.hero--brand .hero-stats div{background:#fff;}
.hero--brand .hero-stats b{color:var(--forest,#1f6f52);}
.hero--brand .hero-stats span{color:#5c6f65;}
.hero--brand .btn--ghost{border-color:rgba(20,35,28,.30);color:#14231c;}
.hero--brand .btn--ghost:hover{background:rgba(20,35,28,.06);border-color:rgba(20,35,28,.5);}

/* ==========================================================================
   CARDS / GRIDS
   ========================================================================== */
.grid{display:grid;gap:24px;}
.g-2{grid-template-columns:repeat(2,1fr);}
.g-3{grid-template-columns:repeat(3,1fr);}
.g-4{grid-template-columns:repeat(4,1fr);}
.g-auto{grid-template-columns:repeat(auto-fit,minmax(268px,1fr));}

.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;transition:.25s ease;position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d3e3da;}
.card h3{margin-bottom:10px;}
.card p{color:var(--text-2);font-size:.94rem;margin-bottom:0;}
.card-icon{
  width:50px;height:50px;border-radius:13px;display:grid;place-items:center;
  background:var(--leaf-soft);color:var(--forest);margin-bottom:18px;
}
.card-num{
  font-size:.72rem;font-weight:800;letter-spacing:.14em;color:var(--wood);
  text-transform:uppercase;margin-bottom:10px;display:block;
}

/* product card */
.p-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;display:flex;flex-direction:column;transition:.26s ease;
}
.p-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#cfe2d8;}
.p-thumb{height:186px;position:relative;overflow:hidden;}
.p-thumb svg{width:100%;height:100%;display:block;}
.p-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease;}
.p-card:hover .p-thumb img{transform:scale(1.05);}
.p-tag{
  position:absolute;top:13px;left:13px;z-index:3;background:rgba(13,26,20,.82);color:#fff;
  font-size:.68rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;
  padding:6px 11px;border-radius:100px;backdrop-filter:blur(4px);
}
.p-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.p-body h3{font-size:1.1rem;margin-bottom:8px;}
.p-body p{color:var(--text-2);font-size:.9rem;margin-bottom:16px;flex:1;}
.p-spec{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:18px;}
.p-spec span{
  font-size:.73rem;font-weight:650;color:var(--ink-600);background:var(--sand);
  padding:5px 10px;border-radius:6px;border:1px solid var(--sand-2);
}
.p-link{
  display:inline-flex;align-items:center;gap:7px;font-weight:700;font-size:.88rem;
  color:var(--forest);margin-top:auto;
}
.p-link:hover{gap:11px;}

/* feature list */
.f-list{list-style:none;padding:0;margin:0;display:grid;gap:13px;}
.f-list li{display:flex;gap:12px;align-items:flex-start;margin:0;font-size:.95rem;color:var(--text-2);}
.f-list li b{color:var(--ink-800);}
.tick{
  width:21px;height:21px;border-radius:50%;background:var(--leaf-soft);color:var(--forest);
  display:grid;place-items:center;flex:none;margin-top:2px;
}

/* split layout */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,66px);align-items:center;}
.split--rev .split-media{order:2;}

/* spec table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;}
table.spec{width:100%;border-collapse:collapse;font-size:.9rem;min-width:560px;}
table.spec th,table.spec td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);}
table.spec thead th{
  background:var(--ink-800);color:#dbe8e2;font-weight:700;font-size:.8rem;
  letter-spacing:.06em;text-transform:uppercase;
}
table.spec tbody tr:nth-child(even){background:var(--paper-2);}
table.spec tbody tr:last-child td{border-bottom:0;}
table.spec td:first-child{font-weight:650;color:var(--ink-800);white-space:nowrap;}

/* stats band */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);}
.stat-band div{background:#fff;padding:30px 24px;text-align:center;}
.stat-band b{display:block;font-size:clamp(1.6rem,3vw,2.3rem);color:var(--forest);font-weight:800;line-height:1;}
.stat-band span{display:block;margin-top:10px;font-size:.83rem;color:var(--text-2);}

/* accordion (FAQ) */
.acc{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden;margin-bottom:12px;}
.acc-q{
  width:100%;text-align:left;background:none;border:0;padding:20px 22px;cursor:pointer;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
  font-weight:700;font-size:.98rem;color:var(--ink-800);
}
.acc-q .chev{flex:none;transition:.28s;color:var(--forest);}
.acc.open .acc-q .chev{transform:rotate(180deg);}
.acc-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.acc-a div{padding:0 22px 22px;color:var(--text-2);font-size:.93rem;}

/* timeline / process */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:22px;counter-reset:s;}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 22px;position:relative;}
.step::before{
  counter-increment:s;content:"0" counter(s);
  font-size:.76rem;font-weight:800;color:var(--wood);letter-spacing:.1em;display:block;margin-bottom:12px;
}
.step h4{margin-bottom:8px;}
.step p{color:var(--text-2);font-size:.88rem;margin:0;}

/* cert cards */
.cert{
  display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:20px;transition:.22s;
}
.cert:hover{border-color:var(--forest);box-shadow:var(--shadow-sm);}
.cert-badge{
  width:56px;height:56px;border-radius:12px;flex:none;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--leaf-soft),#d6efe4);color:var(--forest);
  font-weight:800;font-size:.7rem;text-align:center;line-height:1.15;padding:4px;
}
.cert h4{margin:0 0 3px;font-size:.96rem;}
.cert p{margin:0;font-size:.82rem;color:var(--text-2);}

/* CTA band */
.cta-band{
  background:linear-gradient(120deg,var(--ink-900),var(--ink-600) 70%,var(--forest));
  color:#fff;border-radius:var(--radius-lg);padding:clamp(34px,5vw,58px);
  display:grid;grid-template-columns:1.4fr auto;gap:28px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(79,185,138,.26),transparent 70%);
}
.cta-band h2{color:#fff;margin-bottom:10px;}
.cta-band p{color:#bdd3ca;margin:0;}
.cta-band .btn-row{position:relative;z-index:2;}

/* forms */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:.83rem;font-weight:700;color:var(--ink-700);}
.field label i{color:var(--danger);font-style:normal;}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:.94rem;padding:13px 15px;border:1.5px solid var(--line);
  border-radius:var(--radius);background:#fff;color:var(--text);transition:.18s;width:100%;
}
.field textarea{resize:vertical;min-height:118px;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--forest);box-shadow:0 0 0 4px rgba(31,111,82,.11);
}
.form-note{font-size:.78rem;color:var(--text-3);margin-top:6px;}
.form-status{
  margin-top:16px;padding:14px 16px;border-radius:var(--radius);font-size:.9rem;font-weight:600;display:none;
}
.form-status.ok{display:block;background:var(--leaf-soft);color:#17604a;border:1px solid #b7e2cf;}

/* contact info blocks */
.info-item{display:flex;gap:15px;padding:18px 0;border-bottom:1px solid var(--line);}
.info-item:last-child{border-bottom:0;}
.info-ico{
  width:42px;height:42px;border-radius:11px;flex:none;display:grid;place-items:center;
  background:var(--leaf-soft);color:var(--forest);
}
.info-item b{display:block;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--text-3);margin-bottom:5px;}
.info-item span{font-size:.98rem;color:var(--ink-800);font-weight:600;word-break:break-word;}

/* breadcrumb + page hero */
.page-hero{
  background:var(--ink-900);color:#fff;padding:clamp(46px,6vw,78px) 0 clamp(40px,5vw,62px);
  position:relative;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(760px 360px at 92% 0%,rgba(79,185,138,.2),transparent 66%);
}
.page-hero .wrap{position:relative;z-index:2;max-width:900px;}
.page-hero h1{color:#fff;font-size:clamp(1.85rem,3.6vw,2.75rem);margin-bottom:14px;}
.page-hero p{color:#b0c8be;margin:0;font-size:1.03rem;max-width:70ch;}
.crumb{
  display:flex;gap:9px;align-items:center;font-size:.8rem;color:#8fae9f;
  margin-bottom:18px;font-weight:600;flex-wrap:wrap;
}
.crumb a:hover{color:var(--leaf);}
.crumb span.sep{opacity:.5;}

/* gallery / mosaic */
.mosaic{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:150px;gap:14px;}
.mosaic > div{border-radius:var(--radius);overflow:hidden;position:relative;}
.mosaic > div.tall{grid-row:span 2;}
.mosaic > div.wide{grid-column:span 2;}
.mosaic svg{width:100%;height:100%;display:block;}
.mosaic img{width:100%;height:100%;object-fit:cover;display:block;}

/* project-case carousel (applications section) */
.case-split{display:grid;grid-template-columns:1.15fr 1fr;gap:18px;align-items:start;}
.case-left .case-carousel{max-width:none;margin:0 0 10px;}
.case-left .case-dots{margin:0 0 14px;}
.case-right{display:grid;gap:18px;}
.case-photo{position:relative;margin:0;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-lg);}
.case-photo img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block;}
.case-photo--fill img{aspect-ratio:1.54;}
@media(max-width:860px){.case-split{grid-template-columns:1fr;}.case-photo--fill img{aspect-ratio:4/3;}}
.case-carousel{position:relative;max-width:900px;margin:0 auto 14px;aspect-ratio:8/5;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-lg);background:var(--ink-800);}
.case-slide{position:absolute;inset:0;margin:0;opacity:0;transition:opacity .55s ease;pointer-events:none;}
.case-slide.is-active{opacity:1;pointer-events:auto;}
.case-slide img{width:100%;height:100%;object-fit:cover;display:block;}
.case-dots{display:flex;gap:9px;justify-content:center;margin:0 0 26px;}
.case-dot{width:9px;height:9px;padding:0;border:none;border-radius:50%;background:#c5d2cc;cursor:pointer;transition:background .2s,transform .2s;}
.case-dot.is-active{background:var(--forest);transform:scale(1.25);}
@media(max-width:640px){.case-carousel{aspect-ratio:4/3;border-radius:12px;}}
.mosaic-cap{
  position:absolute;left:0;right:0;bottom:0;padding:14px 16px;z-index:3;
  background:linear-gradient(transparent,rgba(13,26,20,.86));color:#fff;
  font-size:.83rem;font-weight:700;
}

/* footer */
.site-footer{background:var(--ink-900);color:#a9c2b8;padding-top:clamp(48px,6vw,72px);font-size:.9rem;}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:44px;}
.site-footer h5{color:#fff;font-size:.8rem;letter-spacing:.13em;text-transform:uppercase;margin-bottom:18px;font-weight:800;}
.site-footer ul{list-style:none;padding:0;margin:0;}
.site-footer li{margin-bottom:10px;}
.site-footer a:hover{color:var(--leaf);}
.site-footer .brand-text b{color:#fff;}
.site-footer .brand-text span{color:#7f9b8e;}
.f-about p{margin:16px 0 0;color:#8fa89c;font-size:.87rem;line-height:1.7;}
.f-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;
  justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:.82rem;color:#7f9b8e;
}
.f-bottom a{color:#a9c2b8;}

/* misc */
.pill-list{display:flex;flex-wrap:wrap;gap:9px;}
.pill{
  font-size:.82rem;font-weight:650;padding:8px 15px;border-radius:100px;
  background:var(--sand);border:1px solid var(--sand-2);color:var(--ink-600);
}
.note-box{
  background:var(--leaf-soft);border-left:4px solid var(--leaf);border-radius:0 var(--radius) var(--radius) 0;
  padding:18px 22px;font-size:.92rem;color:#1c5c47;
}
.note-box b{color:#124633;}
.mt-0{margin-top:0;}.mb-0{margin-bottom:0;}
.text-c{text-align:center;}

/* language visibility */
body[data-lang="en"] [data-i18n-zh]{display:none !important;}
body[data-lang="zh"] [data-i18n-en]{display:none !important;}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:1080px){
  .menu{display:none;}
  .burger{display:flex;}
  .hero .wrap{grid-template-columns:1fr;}
  .hero-visual{max-width:520px;}
  .f-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:860px){
  .brand-mark{width:38px;height:38px;border-radius:11px;}
  .brand-mark .brand-img{width:24px;height:24px;}
  .g-3,.g-4,.g-2{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;}
  .split--rev .split-media{order:0;}
  .cta-band{grid-template-columns:1fr;}
  .mosaic{grid-template-columns:repeat(2,1fr);}
  .form-grid{grid-template-columns:1fr;}
  .topbar-links{display:none;}
  .section{padding:56px 0;}
}
@media (max-width:560px){
  .wrap{width:min(100% - 32px,var(--wrap));}
  .hero-stats{grid-template-columns:1fr;}
  .f-grid{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:1fr;}
  .brand-text span{display:none;}
  .btn{width:100%;}
  .btn-row .btn{width:auto;flex:1;}
}

/* gallery (main image + thumbnails) */
.gallery{display:flex;flex-direction:column;gap:12px;}
.gallery-main{position:relative;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:4/3;background:var(--ink-800);}
.gallery-slide{position:absolute;inset:0;margin:0;opacity:0;transition:opacity .35s ease;pointer-events:none;}
.gallery-slide.is-active{opacity:1;pointer-events:auto;}
.gallery-slide svg,.gallery-slide img{width:100%;height:100%;object-fit:cover;display:block;}
.gallery-slide figcaption{position:absolute;left:0;right:0;bottom:0;margin:0;padding:26px 18px 12px;background:linear-gradient(transparent,rgba(13,26,20,.82));color:#fff;font-size:13.5px;letter-spacing:.02em;}
.gallery-thumbs{display:grid;grid-template-columns:repeat(auto-fit,minmax(0,1fr));gap:10px;}
.gallery-thumb{position:relative;padding:0;border:2px solid transparent;border-radius:12px;overflow:hidden;cursor:pointer;background:var(--ink-800);aspect-ratio:4/3;opacity:.55;transition:opacity .2s,border-color .2s,transform .2s;}
.gallery-thumb svg,.gallery-thumb img{width:100%;height:100%;object-fit:cover;display:block;}
.gallery-thumb:hover{opacity:.85;}
.gallery-thumb.is-active{opacity:1;border-color:var(--forest);transform:translateY(-2px);}
@media(max-width:640px){.gallery-thumbs{gap:6px;}}

/* gallery prev/next arrows (multi-image products) */
.g-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border:none;border-radius:50%;background:rgba(255,255,255,.92);color:var(--ink-900);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 14px rgba(13,26,20,.28);transition:background .2s,transform .2s;}
.g-nav:hover{background:#fff;transform:translateY(-50%) scale(1.06);}
.g-nav.g-prev{left:14px;}
.g-nav.g-next{right:14px;}
@media(max-width:640px){.g-nav{width:32px;height:32px;}.g-nav.g-prev{left:8px;}.g-nav.g-next{right:8px;}}

/* ---- product grid (category pages) ---- */
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px 20px;}
.prod-card{display:block;background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;}
.prod-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg,0 10px 28px rgba(0,0,0,.18));}
.prod-thumb{aspect-ratio:1/1;overflow:hidden;background:#f2f0ec;}
.prod-thumb img{width:100%;height:100%;object-fit:cover;display:block;}
.prod-card h3{padding:14px 16px 18px;font-size:.92rem;line-height:1.5;margin:0;color:var(--text);min-height:64px;}
.prod-card h3 span{display:block;}
.prod-card h3 [data-i18n-en]{font-weight:700;}
.prod-card h3 [data-i18n-zh]{font-size:.86rem;opacity:.75;}
@media(max-width:1000px){.prod-grid{grid-template-columns:repeat(3,1fr);}}
@media(max-width:700px){.prod-grid{grid-template-columns:repeat(2,1fr);}}

.lang-menu a.lang-item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:8px;font-size:.88rem;color:var(--ink-800);text-decoration:none;}
.lang-menu a.lang-item:hover{background:#f5f3ec;}
.lang-menu a.lang-item.on{background:#eaf1ec;color:var(--forest);font-weight:700;}


/* ---------- Arabic / RTL ---------- */
[dir="rtl"] body{direction:rtl;text-align:right;}
[dir="rtl"] h1,[dir="rtl"] h2,[dir="rtl"] h3,[dir="rtl"] h4,[dir="rtl"] h5,[dir="rtl"] p,[dir="rtl"] li,[dir="rtl"] td,[dir="rtl"] th{text-align:right;}
[dir="rtl"] .lang-menu{right:auto;left:0;}
[dir="rtl"] .lang-menu button,[dir="rtl"] .lang-menu a.lang-item{text-align:right;justify-content:flex-start;}
[dir="rtl"] table.spec th,[dir="rtl"] table.spec td{text-align:right;}
[dir="rtl"] .acc-q{text-align:right;}
[dir="rtl"] .btn svg,[dir="rtl"] .link-arrow svg{transform:scaleX(-1);}
[dir="rtl"] .brand-text span,[dir="rtl"] .crumb,[dir="rtl"] .eyebrow,[dir="rtl"] .tag{letter-spacing:0;}
[dir="rtl"] input,[dir="rtl"] textarea,[dir="rtl"] select{direction:rtl;text-align:right;}
[dir="rtl"] .hero-copy,[dir="rtl"] .page-hero .wrap{text-align:right;}
[dir="rtl"] body{font-family:"Segoe UI","Noto Naskh Arabic","Dubai","Tahoma",system-ui,sans-serif;}

/* language menu alignment (links + flags) */
.lang-menu{min-width:190px;}
.lang-menu button,.lang-menu a.lang-item{width:100%;box-sizing:border-box;justify-content:flex-start;white-space:nowrap;}
.lang-menu a.lang-item{direction:ltr;}
.lang-menu a.lang-item span{unicode-bidi:isolate;}
.lang-menu .flag{display:block;flex:0 0 20px;}

/* Arabic header: keep the brand on the left */
[dir="rtl"] .nav{flex-direction:row-reverse;}
[dir="rtl"] .brand{direction:ltr;}
[dir="rtl"] .brand-text{text-align:left;}

/* Arabic layout refinements */
[dir="rtl"] .menu > li > a{white-space:nowrap;font-size:.86rem;}
[dir="rtl"] .page-hero h1{overflow-wrap:anywhere;line-height:1.55;}
[dir="rtl"] .f-grid{gap:24px;}
[dir="rtl"] .brand-sub{letter-spacing:0;}

/* RTL: align product dropdown under its own menu item */
[dir="rtl"] .submenu{left:auto;right:0;}

/* Arabic header: native RTL, logo on the right */
[dir="rtl"] .nav{flex-direction:row;}
[dir="rtl"] .brand{direction:rtl;}
[dir="rtl"] .brand-text{text-align:right;}

/* Russian nav: keep OEM / ODM on one line */
html[lang="ru"] .menu > li > a{white-space:nowrap;font-size:.88rem;padding-left:10px;padding-right:10px;}

/* Hide Chinese copy whenever the active UI language is not Chinese */
body:not([data-lang="zh"]) [data-i18n-zh]{display:none !important;}

html[lang="vi"] .menu > li > a{white-space:nowrap;font-size:.86rem;padding-left:10px;padding-right:10px;}

/* Keep top-level navigation labels on one line */
.menu > li > a{white-space:nowrap;font-size:.88rem;padding-left:10px;padding-right:10px;}