/* =========================================================
   端云化学 DUANYUN CHEMICAL — Design System
   Theme: Deep Teal (科研 / 医药中间体)
   ========================================================= */

:root{
  --ink:        #07242B;
  --ink-2:      #0C3641;
  --brand:      #0D5C6B;
  --brand-d:    #08414D;
  --brand-l:    #17798A;
  --accent:     #12B3A0;
  --accent-2:   #38D8C2;
  --accent-soft:#E4F6F3;

  --text:       #16333A;
  --muted:      #658086;
  --muted-2:    #8FA5A9;
  --line:       #E2EBEB;
  --line-2:     #D3E0E1;

  --bg:         #FFFFFF;
  --bg-soft:    #F5F9F9;
  --bg-soft-2:  #EBF2F2;

  --r:   3px;
  --r-lg:6px;
  --shadow-sm: 0 1px 2px rgba(7,36,43,.05), 0 2px 8px rgba(7,36,43,.04);
  --shadow:    0 2px 6px rgba(7,36,43,.06), 0 12px 32px -8px rgba(7,36,43,.12);
  --shadow-lg: 0 4px 12px rgba(7,36,43,.08), 0 28px 60px -16px rgba(7,36,43,.22);

  --wrap: 1240px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
          "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
          "Noto Sans SC", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", "Roboto Mono", Consolas, "Courier New", monospace;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

body{
  margin:0;
  font-family:var(--font);
  font-size:15px;
  line-height:1.68;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; }
h1,h2,h3,h4,h5,p,ul,ol,figure{ margin:0; padding:0; }
ul,ol{ list-style:none; }
input,select,textarea{ font-family:inherit; font-size:inherit; color:inherit; }
::selection{ background:var(--accent); color:#fff; }

.wrap{ width:100%; max-width:var(--wrap); margin:0 auto; padding:0 28px; }

/* ---------- utility ---------- */
.mono{ font-family:var(--mono); letter-spacing:-.2px; }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:11.5px; font-weight:600; letter-spacing:.16em; text-transform:uppercase;
  color:var(--accent); margin-bottom:14px;
}
.eyebrow::before{
  content:""; width:22px; height:1px; background:currentColor; opacity:.7;
}
.eyebrow.on-dark{ color:var(--accent-2); }

/* =========================================================
   TOP BAR
   ========================================================= */
.topbar{
  background:var(--ink);
  color:rgba(255,255,255,.62);
  font-size:12.5px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar .wrap{
  height:38px; display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.topbar-left{ display:flex; align-items:center; gap:22px; min-width:0; }
.topbar-item{ display:inline-flex; align-items:center; gap:7px; white-space:nowrap; }
.topbar-item svg{ width:13px; height:13px; opacity:.55; flex:none; }
.topbar-item b{
  color:rgba(255,255,255,.9); font-weight:600; font-family:var(--mono); font-size:12.5px;
}
.topbar-right{ display:flex; align-items:center; gap:18px; white-space:nowrap; }
.topbar-right a{ transition:color .18s; }
.topbar-right a:hover{ color:var(--accent-2); }
.topbar-sep{ width:1px; height:12px; background:rgba(255,255,255,.14); }
.topbar-badge{
  display:inline-flex; align-items:center; gap:6px;
  color:var(--accent-2); font-weight:600; letter-spacing:.02em;
}
.topbar-badge i{
  width:5px; height:5px; border-radius:50%; background:var(--accent-2); display:block;
  box-shadow:0 0 0 3px rgba(56,216,194,.16);
}

/* =========================================================
   HEADER
   ========================================================= */
.site-header{ background:#fff; border-bottom:1px solid var(--line); }
.site-header .wrap{
  display:flex; align-items:center; gap:36px; height:88px;
}

.logo{ display:flex; align-items:center; gap:12px; flex:none; }
.logo-mark{ width:42px; height:42px; flex:none; }
.logo-text{ display:flex; flex-direction:column; line-height:1.1; }
.logo-cn{
  font-size:20px; font-weight:700; letter-spacing:.1em; color:var(--ink);
}
.logo-en{
  font-size:9.5px; font-weight:600; letter-spacing:.22em; color:var(--muted-2);
  margin-top:5px; text-transform:uppercase;
}

/* search */
.hd-search{ flex:1; max-width:560px; position:relative; }
.hd-search-form{
  display:flex; align-items:stretch; height:44px;
  border:1px solid var(--line-2); border-radius:var(--r);
  background:var(--bg-soft); overflow:hidden;
  transition:border-color .2s, box-shadow .2s, background .2s;
}
.hd-search-form:focus-within{
  border-color:var(--brand); background:#fff;
  box-shadow:0 0 0 3px rgba(13,92,107,.08);
}
.hd-search-form select{
  border:0; background:transparent; padding:0 12px 0 14px; font-size:13px;
  color:var(--brand); font-weight:600; outline:none; cursor:pointer;
  border-right:1px solid var(--line-2);
}
.hd-search-form input{
  flex:1; border:0; background:transparent; padding:0 14px; font-size:13.5px; outline:none;
  min-width:0;
}
.hd-search-form input::placeholder{ color:var(--muted-2); }
.hd-search-btn{
  border:0; background:var(--brand); color:#fff; width:56px; cursor:pointer;
  display:grid; place-items:center; transition:background .18s;
}
.hd-search-btn:hover{ background:var(--brand-d); }
.hd-search-btn svg{ width:17px; height:17px; }

.hd-hot{
  display:flex; align-items:center; gap:10px; margin-top:8px;
  font-size:11.5px; color:var(--muted-2); flex-wrap:wrap;
}
.hd-hot b{ font-weight:600; color:var(--muted); }
.hd-hot a{ transition:color .15s; }
.hd-hot a:hover{ color:var(--accent); }

/* header actions */
.hd-actions{ display:flex; align-items:center; gap:10px; margin-left:auto; flex:none; }
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:42px; padding:0 20px; border-radius:var(--r);
  font-size:13.5px; font-weight:600; letter-spacing:.02em;
  border:1px solid transparent; cursor:pointer;
  transition:background .18s, color .18s, border-color .18s, transform .18s, box-shadow .18s;
  white-space:nowrap;
}
.btn svg{ width:15px; height:15px; }
.btn-primary{ background:var(--brand); color:#fff; }
.btn-primary:hover{ background:var(--brand-d); box-shadow:0 6px 18px -6px rgba(8,65,77,.5); }
.btn-accent{ background:var(--accent); color:#04302a; }
.btn-accent:hover{ background:var(--accent-2); }
.btn-ghost{ border-color:var(--line-2); color:var(--brand); background:#fff; }
.btn-ghost:hover{ border-color:var(--brand); background:var(--bg-soft); }
.btn-light{ background:rgba(255,255,255,.1); color:#fff; border-color:rgba(255,255,255,.22); }
.btn-light:hover{ background:rgba(255,255,255,.18); }
.btn-lg{ height:50px; padding:0 28px; font-size:14.5px; }

/* =========================================================
   MAIN NAV
   ========================================================= */
.mainnav{
  position:sticky; top:0; z-index:80;
  background:#fff; border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(7,36,43,.02);
}
.mainnav .wrap{ display:flex; align-items:center; height:52px; gap:2px; }
.nav-item{ position:relative; }
.nav-link{
  display:flex; align-items:center; gap:6px; height:52px; padding:0 18px;
  font-size:14px; font-weight:500; color:var(--text);
  position:relative; transition:color .18s;
}
.nav-link::after{
  content:""; position:absolute; left:18px; right:18px; bottom:0; height:2px;
  background:var(--accent); transform:scaleX(0); transform-origin:left;
  transition:transform .22s ease;
}
.nav-item:hover .nav-link,
.nav-link.active{ color:var(--brand); font-weight:600; }
.nav-item:hover .nav-link::after,
.nav-link.active::after{ transform:scaleX(1); }
.nav-link .caret{
  width:9px; height:9px; opacity:.45; transition:transform .2s;
}
.nav-item:hover .caret{ transform:rotate(180deg); }

/* dropdown */
.dropdown{
  position:absolute; top:100%; left:0; min-width:236px;
  background:#fff; border:1px solid var(--line); border-top:2px solid var(--brand);
  box-shadow:var(--shadow); padding:8px 0;
  opacity:0; visibility:hidden; transform:translateY(6px);
  transition:opacity .18s, transform .18s, visibility .18s;
  z-index:90;
}
.nav-item:hover .dropdown{ opacity:1; visibility:visible; transform:translateY(0); }
.dropdown a{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  padding:9px 18px; font-size:13.5px; color:var(--text); transition:background .15s, color .15s;
}
.dropdown a:hover{ background:var(--bg-soft); color:var(--brand); }
.dropdown a span{ font-size:11px; color:var(--muted-2); font-family:var(--mono); }

.nav-spacer{ flex:1; }
.nav-aside{
  display:flex; align-items:center; gap:8px; font-size:12.5px; color:var(--muted);
  padding-left:18px; border-left:1px solid var(--line); height:22px;
}
.nav-aside svg{ width:14px; height:14px; color:var(--accent); }
.nav-aside b{ color:var(--brand); font-family:var(--mono); font-weight:700; font-size:13px; }

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative; overflow:hidden;
  background:
    radial-gradient(1200px 600px at 78% -10%, rgba(18,179,160,.22), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(23,121,138,.28), transparent 62%),
    linear-gradient(150deg, #061F26 0%, #07242B 40%, #0A3540 100%);
  color:#fff;
}
.hero-grid-lines{
  position:absolute; inset:0; pointer-events:none; opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 60% 40%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 60% 40%, #000 0%, transparent 78%);
}
.hero-molecule{
  position:absolute; right:-4%; top:50%; transform:translateY(-50%);
  width:720px; height:720px; opacity:.55; pointer-events:none;
}
.hero .wrap{
  position:relative; z-index:2;
  display:grid; grid-template-columns:1.08fr .92fr; gap:56px; align-items:center;
  padding-top:78px; padding-bottom:92px;
}
.hero-tag{
  display:inline-flex; align-items:center; gap:9px;
  padding:6px 14px 6px 10px; border-radius:100px;
  background:rgba(56,216,194,.1); border:1px solid rgba(56,216,194,.26);
  font-size:12px; font-weight:600; color:var(--accent-2); letter-spacing:.04em;
  margin-bottom:26px;
}
.hero-tag i{
  width:6px; height:6px; border-radius:50%; background:var(--accent-2);
  box-shadow:0 0 0 4px rgba(56,216,194,.14);
}
.hero h1{
  font-size:50px; line-height:1.18; font-weight:700; letter-spacing:-.5px;
  margin-bottom:22px;
}
.hero h1 em{
  font-style:normal; position:relative; color:var(--accent-2);
}
.hero h1 em::after{
  content:""; position:absolute; left:0; right:0; bottom:4px; height:8px;
  background:rgba(56,216,194,.16); z-index:-1; border-radius:2px;
}
.hero-sub{
  font-size:15.5px; line-height:1.85; color:rgba(255,255,255,.66);
  max-width:520px; margin-bottom:34px;
}
.hero-cta{ display:flex; align-items:center; gap:14px; flex-wrap:wrap; margin-bottom:44px; }
.hero-link{
  display:inline-flex; align-items:center; gap:8px; font-size:13.5px; font-weight:600;
  color:rgba(255,255,255,.8); padding:0 4px;
}
.hero-link svg{ width:15px; height:15px; transition:transform .2s; }
.hero-link:hover{ color:var(--accent-2); }
.hero-link:hover svg{ transform:translateX(4px); }

.hero-stats{
  display:grid; grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.1); padding-top:26px; gap:8px;
}
.hero-stat b{
  display:block; font-size:25px; font-weight:700; font-family:var(--mono);
  letter-spacing:-1px; color:#fff; line-height:1.2;
}
.hero-stat b span{ font-size:14px; color:var(--accent-2); margin-left:1px; }
.hero-stat p{
  font-size:11.5px; color:rgba(255,255,255,.45); margin-top:4px; letter-spacing:.04em;
}

/* hero right: capability card */
.hero-panel{
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-lg);
  padding:26px;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:0 30px 70px -30px rgba(0,0,0,.7);
}
.hero-panel-head{
  display:flex; align-items:center; justify-content:space-between;
  padding-bottom:16px; border-bottom:1px solid rgba(255,255,255,.1); margin-bottom:6px;
}
.hero-panel-head h3{
  font-size:12px; font-weight:600; letter-spacing:.16em; text-transform:uppercase;
  color:rgba(255,255,255,.72);
}
.hero-panel-head span{
  font-size:10.5px; font-family:var(--mono); color:var(--accent-2);
  background:rgba(56,216,194,.12); padding:3px 8px; border-radius:2px;
  letter-spacing:.04em;
}
.hero-row{
  display:flex; align-items:center; gap:14px;
  padding:14px 0; border-bottom:1px dashed rgba(255,255,255,.09);
}
.hero-row:last-child{ border-bottom:0; padding-bottom:2px; }
.hero-row-ico{
  width:36px; height:36px; border-radius:var(--r); flex:none;
  display:grid; place-items:center;
  background:rgba(56,216,194,.1); border:1px solid rgba(56,216,194,.2);
}
.hero-row-ico svg{ width:17px; height:17px; color:var(--accent-2); }
.hero-row-txt{ min-width:0; }
.hero-row-txt h4{ font-size:13.5px; font-weight:600; color:#fff; margin-bottom:2px; }
.hero-row-txt p{ font-size:11.8px; color:rgba(255,255,255,.46); }
.hero-row-val{
  margin-left:auto; font-family:var(--mono); font-size:12.5px; font-weight:600;
  color:var(--accent-2); white-space:nowrap;
}

/* =========================================================
   QUICK TOOLS  (结构式 / CAS / 批量 / COA)
   ========================================================= */
.tools{
  position:relative; z-index:5;
  margin-top:-40px;
}
.tools-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-lg);
  box-shadow:var(--shadow-lg); overflow:hidden;
  display:grid; grid-template-columns:repeat(4,1fr);
}
.tool{
  padding:24px 24px 26px; border-right:1px solid var(--line);
  position:relative; transition:background .2s;
}
.tool:last-child{ border-right:0; }
.tool:hover{ background:var(--bg-soft); }
.tool-ico{
  width:38px; height:38px; border-radius:var(--r); display:grid; place-items:center;
  background:var(--accent-soft); color:var(--brand); margin-bottom:14px;
  transition:background .2s, color .2s;
}
.tool:hover .tool-ico{ background:var(--brand); color:#fff; }
.tool-ico svg{ width:18px; height:18px; }
.tool h3{ font-size:14.5px; font-weight:600; color:var(--ink); margin-bottom:5px; }
.tool p{ font-size:12.3px; color:var(--muted); line-height:1.6; margin-bottom:14px; }
.tool-form{ display:flex; gap:8px; }
.tool-form input{
  flex:1; min-width:0; height:36px; padding:0 11px; font-size:12.5px;
  border:1px solid var(--line-2); border-radius:var(--r); background:#fff; outline:none;
  transition:border-color .18s, box-shadow .18s;
}
.tool-form input:focus{ border-color:var(--brand); box-shadow:0 0 0 3px rgba(13,92,107,.07); }
.tool-form button{
  height:36px; padding:0 14px; border:0; border-radius:var(--r);
  background:var(--brand); color:#fff; font-size:12.5px; font-weight:600; cursor:pointer;
  transition:background .18s;
}
.tool-form button:hover{ background:var(--brand-d); }
.tool-more{
  display:inline-flex; align-items:center; gap:6px; font-size:12.5px; font-weight:600;
  color:var(--brand);
}
.tool-more svg{ width:13px; height:13px; transition:transform .2s; }
.tool-more:hover svg{ transform:translateX(3px); }

/* =========================================================
   SECTION
   ========================================================= */
.section{ padding:88px 0; }
.section.soft{ background:var(--bg-soft); }
.section.tight{ padding:64px 0; }

.sec-head{
  display:flex; align-items:flex-end; justify-content:space-between; gap:40px;
  margin-bottom:44px;
}
.sec-head-l{ max-width:640px; }
.sec-head h2{
  font-size:32px; line-height:1.3; font-weight:700; letter-spacing:-.4px; color:var(--ink);
}
.sec-head h2 em{ font-style:normal; color:var(--brand); }
.sec-head p{
  font-size:14.5px; color:var(--muted); margin-top:12px; line-height:1.8;
}
.sec-head-r{ flex:none; }

/* =========================================================
   CATEGORY LIST (竖排)
   ========================================================= */
.cat-list{ border-top:1px solid var(--line); }
.cat-row{
  display:grid; grid-template-columns:56px 240px 1fr 44px;
  align-items:center; gap:24px;
  padding:26px 20px 26px 0;
  border-bottom:1px solid var(--line);
  transition:background .22s, padding .22s;
  position:relative;
}
.cat-row::before{
  content:""; position:absolute; left:-24px; top:0; bottom:0; width:2px;
  background:var(--accent); transform:scaleY(0); transition:transform .25s;
}
.cat-row:hover{ background:linear-gradient(90deg, var(--accent-soft), transparent 70%); }
.cat-row:hover::before{ transform:scaleY(1); }
.cat-ico{
  width:52px; height:52px; border-radius:var(--r);
  display:grid; place-items:center;
  background:#fff; border:1px solid var(--line-2); color:var(--brand);
  transition:border-color .22s, color .22s, transform .22s;
}
.cat-ico svg{ width:24px; height:24px; }
.cat-row:hover .cat-ico{ border-color:var(--accent); color:var(--accent); transform:translateY(-2px); }
.cat-name h3{
  font-size:17px; font-weight:600; color:var(--ink); letter-spacing:.01em; margin-bottom:3px;
}
.cat-name p{
  font-size:11.5px; color:var(--muted-2); font-family:var(--mono); letter-spacing:.04em;
}
.cat-sub{ display:flex; flex-wrap:wrap; gap:8px; }
.cat-sub a{
  font-size:12.5px; padding:5px 12px; border-radius:100px;
  background:#fff; border:1px solid var(--line); color:var(--muted);
  transition:all .18s; white-space:nowrap;
}
.cat-sub a:hover{
  border-color:var(--accent); color:var(--brand); background:var(--accent-soft);
}
.cat-arrow{
  width:34px; height:34px; border-radius:50%; display:grid; place-items:center;
  border:1px solid var(--line-2); color:var(--muted-2);
  transition:all .22s;
}
.cat-arrow svg{ width:14px; height:14px; }
.cat-row:hover .cat-arrow{
  background:var(--brand); border-color:var(--brand); color:#fff; transform:translateX(4px);
}

/* =========================================================
   PRODUCTS
   ========================================================= */
.prod-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:20px;
}
.prod-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-lg);
  overflow:hidden; display:flex; flex-direction:column;
  transition:box-shadow .24s, transform .24s, border-color .24s;
  position:relative;
}
.prod-card:hover{
  box-shadow:var(--shadow); transform:translateY(-3px); border-color:var(--line-2);
}
.prod-media{
  position:relative; aspect-ratio:1/.82;
  background:linear-gradient(160deg,#F8FBFB, #EAF2F3);
  display:grid; place-items:center; overflow:hidden;
  border-bottom:1px solid var(--line);
}
.prod-media svg{ width:76%; height:auto; transition:transform .32s ease; }
.prod-card:hover .prod-media svg{ transform:scale(1.05) rotate(-1.5deg); }
.prod-badge{
  position:absolute; top:12px; left:12px;
  font-size:10.5px; font-weight:700; letter-spacing:.08em; text-transform:uppercase;
  padding:4px 9px; border-radius:2px;
  background:var(--brand); color:#fff;
}
.prod-badge.new{ background:var(--accent); color:#04302a; }
.prod-badge.hot{ background:#C2410C; }
.prod-fav{
  position:absolute; top:10px; right:10px;
  width:28px; height:28px; border-radius:50%; border:1px solid var(--line-2);
  background:rgba(255,255,255,.9); display:grid; place-items:center;
  color:var(--muted-2); cursor:pointer; transition:all .18s;
}
.prod-fav svg{ width:13px; height:13px; }
.prod-fav:hover{ color:#C2410C; border-color:#F3C4B4; }
.prod-body{ padding:16px 18px 20px; display:flex; flex-direction:column; flex:1; }
.prod-cat{
  font-size:10.5px; font-weight:600; letter-spacing:.1em; text-transform:uppercase;
  color:var(--accent); margin-bottom:7px;
}
.prod-name{
  font-size:14.5px; font-weight:600; line-height:1.45; color:var(--ink);
  margin-bottom:10px; min-height:42px;
  display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden;
}
.prod-meta{
  display:flex; flex-wrap:wrap; gap:6px; margin-bottom:14px;
}
.prod-meta span{
  font-size:11px; font-family:var(--mono); padding:2.5px 7px; border-radius:2px;
  background:var(--bg-soft-2); color:var(--muted);
}
.prod-foot{
  margin-top:auto; padding-top:13px; border-top:1px solid var(--line);
  display:flex; align-items:center; justify-content:space-between; gap:10px;
}
.prod-sku{ font-size:11.5px; font-family:var(--mono); color:var(--muted-2); }
.prod-price{ font-size:13px; font-weight:600; color:var(--brand); }
.prod-price small{ font-size:11px; font-weight:400; color:var(--muted-2); }

/* tabs (product filter) — vertical-safe pills */
.pill-row{ display:flex; flex-wrap:wrap; gap:8px; }
.pill{
  font-size:13px; padding:7px 16px; border-radius:100px;
  border:1px solid var(--line-2); background:#fff; color:var(--muted);
  cursor:pointer; transition:all .18s;
}
.pill:hover{ border-color:var(--accent); color:var(--brand); }
.pill.active{ background:var(--brand); border-color:var(--brand); color:#fff; font-weight:600; }

/* =========================================================
   CAPABILITY / PROCESS
   ========================================================= */
.cap-grid{
  display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center;
}
.cap-visual{
  position:relative; border-radius:var(--r-lg); overflow:hidden;
  background:linear-gradient(150deg,#07242B,#0C3641 55%,#0D5C6B);
  padding:34px; min-height:400px;
  display:flex; flex-direction:column; justify-content:space-between;
  box-shadow:var(--shadow);
}
.cap-visual::after{
  content:""; position:absolute; inset:0; pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:40px 40px;
  mask-image:radial-gradient(circle at 70% 30%, #000, transparent 75%);
  -webkit-mask-image:radial-gradient(circle at 70% 30%, #000, transparent 75%);
}
.cap-visual-top{ position:relative; z-index:2; }
.cap-visual-top h3{
  font-size:12px; letter-spacing:.16em; text-transform:uppercase;
  color:rgba(255,255,255,.5); margin-bottom:10px;
}
.cap-visual-top b{
  font-size:19px; color:#fff; font-weight:600; letter-spacing:.01em;
}
.cap-reactors{
  position:relative; z-index:2; display:grid; grid-template-columns:repeat(4,1fr);
  gap:14px; align-items:end; margin:24px 0 26px;
}
.reactor{ text-align:center; }
.reactor-bar{
  border-radius:3px 3px 0 0; background:linear-gradient(180deg, rgba(56,216,194,.85), rgba(56,216,194,.2));
  margin-bottom:8px; transition:height .5s ease;
}
.reactor:nth-child(2) .reactor-bar{ background:linear-gradient(180deg,rgba(56,216,194,.55),rgba(56,216,194,.12)); }
.reactor:nth-child(3) .reactor-bar{ background:linear-gradient(180deg,rgba(23,121,138,.9),rgba(23,121,138,.25)); }
.reactor:nth-child(4) .reactor-bar{ background:linear-gradient(180deg,rgba(255,255,255,.22),rgba(255,255,255,.05)); }
.reactor span{ font-size:10.5px; font-family:var(--mono); color:rgba(255,255,255,.45); }
.cap-visual-foot{
  position:relative; z-index:2; display:flex; gap:28px;
  padding-top:18px; border-top:1px solid rgba(255,255,255,.12);
}
.cap-visual-foot div b{
  display:block; font-family:var(--mono); font-size:19px; font-weight:700; color:#fff;
}
.cap-visual-foot div span{ font-size:11px; color:rgba(255,255,255,.42); }

.steps{ display:flex; flex-direction:column; gap:0; margin-top:30px; }
.step{
  display:grid; grid-template-columns:auto 1fr; gap:20px;
  padding-bottom:26px; position:relative;
}
.step:last-child{ padding-bottom:0; }
.step::before{
  content:""; position:absolute; left:15px; top:34px; bottom:0; width:1px;
  background:var(--line-2);
}
.step:last-child::before{ display:none; }
.step-n{
  width:31px; height:31px; border-radius:50%; flex:none;
  border:1px solid var(--line-2); background:#fff; color:var(--brand);
  display:grid; place-items:center; font-size:12px; font-weight:700; font-family:var(--mono);
  z-index:2;
}
.step:hover .step-n{ background:var(--brand); color:#fff; border-color:var(--brand); }
.step-txt h4{ font-size:15px; font-weight:600; color:var(--ink); margin-bottom:4px; }
.step-txt p{ font-size:13.2px; color:var(--muted); line-height:1.7; }

/* =========================================================
   QUALITY / DATA STRIP
   ========================================================= */
.qc-strip{
  display:grid; grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line); border-radius:var(--r-lg);
  background:#fff; overflow:hidden;
}
.qc-item{
  padding:30px 26px; border-right:1px solid var(--line);
  transition:background .2s;
}
.qc-item:last-child{ border-right:0; }
.qc-item:hover{ background:var(--bg-soft); }
.qc-item-ico{
  width:34px; height:34px; color:var(--accent); margin-bottom:14px;
}
.qc-item h4{ font-size:14.5px; font-weight:600; color:var(--ink); margin-bottom:6px; }
.qc-item p{ font-size:12.5px; color:var(--muted); line-height:1.65; }
.qc-item b{
  display:block; font-family:var(--mono); font-size:12px; color:var(--brand);
  margin-top:10px; letter-spacing:.02em;
}

/* =========================================================
   NEWS
   ========================================================= */
.news-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.news-card{
  border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden;
  background:#fff; transition:box-shadow .22s, transform .22s;
  display:flex; flex-direction:column;
}
.news-card:hover{ box-shadow:var(--shadow); transform:translateY(-3px); }
.news-thumb{
  aspect-ratio:16/9; position:relative; overflow:hidden;
  background:linear-gradient(140deg,#0A3540,#0D5C6B);
  display:grid; place-items:center;
}
.news-thumb svg{ width:56%; opacity:.5; }
.news-date{
  position:absolute; left:14px; bottom:14px;
  font-family:var(--mono); font-size:11px; color:rgba(255,255,255,.7);
  letter-spacing:.06em;
}
.news-body{ padding:20px 22px 24px; flex:1; display:flex; flex-direction:column; }
.news-tag{
  font-size:10.5px; font-weight:700; letter-spacing:.1em; text-transform:uppercase;
  color:var(--accent); margin-bottom:9px;
}
.news-body h3{
  font-size:15.5px; font-weight:600; line-height:1.5; color:var(--ink); margin-bottom:10px;
}
.news-body p{ font-size:13px; color:var(--muted); line-height:1.75; }
.news-more{
  margin-top:auto; padding-top:16px; font-size:12.5px; font-weight:600; color:var(--brand);
  display:inline-flex; align-items:center; gap:6px;
}
.news-more svg{ width:13px; height:13px; }

/* =========================================================
   CTA BAND
   ========================================================= */
.cta-band{
  position:relative; overflow:hidden;
  background:linear-gradient(120deg,#07242B,#0D5C6B 65%,#17798A);
  color:#fff;
}
.cta-band::before{
  content:""; position:absolute; right:-80px; top:-120px;
  width:520px; height:520px; border-radius:50%;
  background:radial-gradient(circle, rgba(56,216,194,.22), transparent 62%);
}
.cta-band .wrap{
  position:relative; z-index:2; padding:64px 28px;
  display:flex; align-items:center; justify-content:space-between; gap:40px;
}
.cta-band h2{ font-size:28px; font-weight:700; letter-spacing:-.3px; margin-bottom:10px; }
.cta-band p{ font-size:14px; color:rgba(255,255,255,.62); max-width:560px; }
.cta-band .btn-accent{ flex:none; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{ background:var(--ink); color:rgba(255,255,255,.6); font-size:13px; }
.footer-top{
  display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr 1.1fr; gap:40px;
  padding:64px 0 52px;
}
.f-brand .logo-cn{ color:#fff; }
.f-brand .logo-en{ color:rgba(255,255,255,.4); }
.f-brand p{
  font-size:12.8px; line-height:1.9; color:rgba(255,255,255,.42); margin:18px 0 22px;
  max-width:290px;
}
.f-certs{ display:flex; gap:8px; flex-wrap:wrap; }
.f-certs span{
  font-size:10.5px; font-family:var(--mono); padding:4px 9px; border-radius:2px;
  border:1px solid rgba(255,255,255,.14); color:rgba(255,255,255,.5);
  letter-spacing:.04em;
}
.f-col h4{
  font-size:12px; font-weight:700; letter-spacing:.14em; text-transform:uppercase;
  color:#fff; margin-bottom:18px;
}
.f-col li{ margin-bottom:11px; }
.f-col a{ color:rgba(255,255,255,.55); transition:color .18s; font-size:12.8px; }
.f-col a:hover{ color:var(--accent-2); }
.f-contact li{ display:flex; gap:10px; margin-bottom:14px; align-items:flex-start; }
.f-contact svg{ width:14px; height:14px; color:var(--accent); flex:none; margin-top:4px; }
.f-contact b{
  display:block; font-family:var(--mono); font-size:14px; color:#fff; font-weight:600;
  letter-spacing:.02em;
}
.f-contact span{ font-size:11.5px; color:rgba(255,255,255,.4); }
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0; display:flex; align-items:center; justify-content:space-between;
  gap:24px; flex-wrap:wrap; font-size:12px; color:rgba(255,255,255,.35);
}
.footer-links{ display:flex; gap:20px; flex-wrap:wrap; }
.footer-links a:hover{ color:var(--accent-2); }

/* =========================================================
   PAGE HEAD (inner pages)
   ========================================================= */
.page-head{
  position:relative; overflow:hidden;
  background:linear-gradient(120deg,#07242B,#0A3540 60%,#0D5C6B);
  color:#fff; padding:56px 0 60px;
}
.page-head::after{
  content:""; position:absolute; inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 75% 20%,#000,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 75% 20%,#000,transparent 72%);
}
.page-head .wrap{ position:relative; z-index:2; }
.crumb{
  display:flex; align-items:center; gap:9px; font-size:12.5px;
  color:rgba(255,255,255,.45); margin-bottom:16px;
}
.crumb a:hover{ color:var(--accent-2); }
.crumb svg{ width:11px; height:11px; opacity:.5; }
.page-head h1{ font-size:36px; font-weight:700; letter-spacing:-.3px; margin-bottom:12px; }
.page-head p{ font-size:14.5px; color:rgba(255,255,255,.6); max-width:660px; line-height:1.8; }

/* =========================================================
   PRODUCTS PAGE — sidebar layout
   ========================================================= */
.pl-layout{
  display:grid; grid-template-columns:262px 1fr; gap:36px; align-items:start;
  padding:44px 0 88px;
}
.sidebar{ position:sticky; top:72px; }
.side-card{
  border:1px solid var(--line); border-radius:var(--r-lg); background:#fff;
  overflow:hidden; margin-bottom:20px;
}
.side-head{
  padding:15px 18px; background:var(--bg-soft); border-bottom:1px solid var(--line);
  font-size:12px; font-weight:700; letter-spacing:.12em; text-transform:uppercase;
  color:var(--brand); display:flex; align-items:center; gap:8px;
}
.side-head svg{ width:14px; height:14px; }
.tree{ padding:8px 0; }
.tree-group{ border-bottom:1px solid var(--line); }
.tree-group:last-child{ border-bottom:0; }
.tree-title{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:12px 18px; font-size:13.5px; font-weight:600; color:var(--text);
  cursor:pointer; transition:background .16s, color .16s;
}
.tree-title:hover{ background:var(--bg-soft); color:var(--brand); }
.tree-title i{
  width:12px; height:12px; flex:none; color:var(--muted-2);
  transition:transform .22s;
}
.tree-group.open .tree-title{ color:var(--brand); }
.tree-group.open .tree-title i{ transform:rotate(180deg); }
.tree-sub{
  display:none; padding:0 0 10px; background:var(--bg-soft);
}
.tree-group.open .tree-sub{ display:block; }
.tree-sub a{
  display:flex; align-items:center; justify-content:space-between;
  padding:8px 18px 8px 30px; font-size:12.8px; color:var(--muted);
  transition:all .15s;
}
.tree-sub a:hover{ color:var(--brand); background:#fff; padding-left:34px; }
.tree-sub a span{ font-family:var(--mono); font-size:11px; color:var(--muted-2); }

.side-contact{
  border-radius:var(--r-lg); overflow:hidden;
  background:linear-gradient(150deg,#07242B,#0D5C6B); color:#fff; padding:24px;
}
.side-contact h4{ font-size:14px; font-weight:600; margin-bottom:7px; }
.side-contact p{ font-size:12px; color:rgba(255,255,255,.5); line-height:1.7; margin-bottom:16px; }
.side-contact b{
  display:block; font-family:var(--mono); font-size:19px; font-weight:700;
  letter-spacing:-.5px; margin-bottom:14px;
}
.side-contact .btn{ width:100%; height:38px; font-size:12.5px; }

/* filter bar */
.filter-bar{
  display:flex; align-items:center; justify-content:space-between; gap:20px;
  padding:16px 20px; background:var(--bg-soft); border:1px solid var(--line);
  border-radius:var(--r-lg); margin-bottom:24px; flex-wrap:wrap;
}
.filter-bar-l{ display:flex; align-items:center; gap:14px; flex-wrap:wrap; }
.filter-label{ font-size:12px; color:var(--muted-2); font-weight:600; }
.filter-count{ font-size:12.5px; color:var(--muted); }
.filter-count b{ color:var(--brand); font-family:var(--mono); font-size:14px; }
.filter-bar select{
  height:34px; padding:0 10px; border:1px solid var(--line-2); border-radius:var(--r);
  background:#fff; font-size:12.5px; color:var(--text); outline:none; cursor:pointer;
}

.result-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }

/* pagination */
.pager{
  display:flex; align-items:center; justify-content:center; gap:8px; margin-top:42px;
}
.pager a,.pager span{
  min-width:36px; height:36px; padding:0 12px; display:grid; place-items:center;
  border:1px solid var(--line-2); border-radius:var(--r); background:#fff;
  font-size:13px; font-family:var(--mono); color:var(--muted); transition:all .16s;
}
.pager a:hover{ border-color:var(--brand); color:var(--brand); }
.pager .active{ background:var(--brand); border-color:var(--brand); color:#fff; font-weight:700; }

/* =========================================================
   PRODUCT DETAIL
   ========================================================= */
.pd-top{
  display:grid; grid-template-columns:460px 1fr; gap:48px;
  padding:44px 0 56px; border-bottom:1px solid var(--line);
}
.pd-media{
  border:1px solid var(--line); border-radius:var(--r-lg);
  background:linear-gradient(160deg,#F8FBFB,#E9F2F3);
  aspect-ratio:1/1; display:grid; place-items:center; padding:36px;
  position:relative;
}
.pd-media svg{ width:100%; height:auto; }
.pd-media-tag{
  position:absolute; bottom:14px; left:0; right:0; text-align:center;
  font-size:11px; color:var(--muted-2); letter-spacing:.04em;
}
.pd-sku{
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--mono); font-size:12px; color:var(--muted);
  background:var(--bg-soft-2); padding:5px 11px; border-radius:2px; margin-bottom:16px;
}
.pd-sku b{ color:var(--brand); }
.pd-title h1{ font-size:28px; line-height:1.35; font-weight:700; color:var(--ink); letter-spacing:-.2px; }
.pd-title .en{
  font-size:13.5px; color:var(--muted); margin-top:8px; letter-spacing:.01em; font-weight:400;
}
.pd-spec{
  display:grid; grid-template-columns:repeat(2,1fr); gap:0;
  margin:26px 0; border-top:1px solid var(--line);
}
.pd-spec div{
  padding:13px 0; border-bottom:1px solid var(--line);
  display:flex; justify-content:space-between; gap:16px; font-size:13px;
}
.pd-spec div:nth-child(odd){ padding-right:24px; border-right:1px solid var(--line); }
.pd-spec div:nth-child(even){ padding-left:24px; }
.pd-spec dt{ color:var(--muted-2); flex:none; }
.pd-spec dd{ margin:0; text-align:right; font-weight:600; color:var(--ink); font-family:var(--mono); font-size:12.8px; }
.pd-actions{ display:flex; gap:12px; flex-wrap:wrap; margin-bottom:22px; }
.pd-note{
  display:flex; gap:11px; padding:14px 16px; border-radius:var(--r);
  background:var(--accent-soft); border:1px solid #C9EBE5;
  font-size:12.5px; color:#0A5A52; line-height:1.7;
}
.pd-note svg{ width:15px; height:15px; flex:none; margin-top:3px; color:var(--accent); }

.pd-body{ display:grid; grid-template-columns:1fr 340px; gap:48px; padding:56px 0 88px; }
.pd-sec{ margin-bottom:44px; }
.pd-sec:last-child{ margin-bottom:0; }
.pd-sec h3{
  font-size:17px; font-weight:600; color:var(--ink); margin-bottom:18px;
  padding-bottom:12px; border-bottom:1px solid var(--line);
  display:flex; align-items:center; gap:10px;
}
.pd-sec h3::before{
  content:""; width:3px; height:15px; background:var(--accent); border-radius:1px;
}
.spec-table{ width:100%; border-collapse:collapse; font-size:13px; }
.spec-table th,.spec-table td{
  padding:11px 14px; border:1px solid var(--line); text-align:left;
}
.spec-table th{
  background:var(--bg-soft); font-weight:600; color:var(--brand); font-size:12.5px;
  width:180px;
}
.spec-table td{ font-family:var(--mono); font-size:12.5px; color:var(--text); }
.pd-sec p{ font-size:13.8px; line-height:1.95; color:var(--muted); }
.pd-sec p + p{ margin-top:12px; }

.doc-list{ border-top:1px solid var(--line); }
.doc-row{
  display:flex; align-items:center; gap:14px; padding:14px 4px;
  border-bottom:1px solid var(--line); transition:background .16s;
}
.doc-row:hover{ background:var(--bg-soft); }
.doc-ico{
  width:32px; height:38px; border-radius:2px; flex:none; display:grid; place-items:center;
  background:var(--bg-soft-2); color:var(--brand); font-size:9px; font-weight:700;
  font-family:var(--mono); letter-spacing:.02em;
}
.doc-info{ flex:1; min-width:0; }
.doc-info h5{ font-size:13.3px; font-weight:600; color:var(--ink); }
.doc-info p{ font-size:11.5px; color:var(--muted-2); margin-top:1px; }
.doc-dl{
  font-size:12px; font-weight:600; color:var(--brand); display:inline-flex;
  align-items:center; gap:5px; flex:none;
}
.doc-dl svg{ width:13px; height:13px; }

.inquiry-card{
  border:1px solid var(--line); border-radius:var(--r-lg); background:#fff;
  padding:26px; box-shadow:var(--shadow-sm); position:sticky; top:72px;
}
.inquiry-card h3{ font-size:16px; font-weight:600; color:var(--ink); margin-bottom:6px; }
.inquiry-card > p{ font-size:12.5px; color:var(--muted); margin-bottom:20px; line-height:1.7; }
.field{ margin-bottom:14px; }
.field label{
  display:block; font-size:12px; font-weight:600; color:var(--muted);
  margin-bottom:6px; letter-spacing:.02em;
}
.field input,.field select,.field textarea{
  width:100%; padding:10px 12px; border:1px solid var(--line-2); border-radius:var(--r);
  background:#fff; font-size:13px; outline:none; transition:border-color .18s, box-shadow .18s;
}
.field textarea{ resize:vertical; min-height:78px; line-height:1.7; }
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand); box-shadow:0 0 0 3px rgba(13,92,107,.07);
}
.inquiry-card .btn{ width:100%; margin-top:6px; }
.inquiry-card .agree{
  font-size:11px; color:var(--muted-2); text-align:center; margin-top:12px; line-height:1.6;
}

/* =========================================================
   ABOUT PAGE
   ========================================================= */
.about-grid{ display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.about-copy h2{ font-size:30px; font-weight:700; line-height:1.35; color:var(--ink); margin-bottom:20px; letter-spacing:-.3px; }
.about-copy p{ font-size:14.2px; line-height:1.95; color:var(--muted); }
.about-copy p + p{ margin-top:14px; }
.about-figs{
  display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line);
  border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden; margin-top:32px;
}
.about-fig{ background:#fff; padding:24px 22px; }
.about-fig b{
  display:block; font-family:var(--mono); font-size:26px; font-weight:700;
  color:var(--brand); letter-spacing:-1px; line-height:1.1;
}
.about-fig span{ font-size:12px; color:var(--muted); margin-top:5px; display:block; }

.timeline{ position:relative; margin-top:16px; }
.tl-row{
  display:grid; grid-template-columns:110px 1fr; gap:32px;
  padding:24px 0; border-top:1px solid var(--line); align-items:start;
}
.tl-year{
  font-family:var(--mono); font-size:19px; font-weight:700; color:var(--brand);
  letter-spacing:-.5px;
}
.tl-txt h4{ font-size:15px; font-weight:600; color:var(--ink); margin-bottom:5px; }
.tl-txt p{ font-size:13.5px; color:var(--muted); line-height:1.75; }

.value-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.value-card{
  border:1px solid var(--line); border-radius:var(--r-lg); padding:28px 26px;
  background:#fff; transition:box-shadow .22s, transform .22s, border-color .22s;
}
.value-card:hover{ box-shadow:var(--shadow); transform:translateY(-3px); border-color:var(--line-2); }
.value-ico{
  width:40px; height:40px; border-radius:var(--r); display:grid; place-items:center;
  background:var(--accent-soft); color:var(--brand); margin-bottom:16px;
}
.value-ico svg{ width:19px; height:19px; }
.value-card h4{ font-size:15.5px; font-weight:600; color:var(--ink); margin-bottom:8px; }
.value-card p{ font-size:13.2px; color:var(--muted); line-height:1.8; }

/* =========================================================
   CONTACT PAGE
   ========================================================= */
.contact-layout{ display:grid; grid-template-columns:1fr 420px; gap:48px; padding:56px 0 88px; }
.contact-cards{ display:grid; grid-template-columns:repeat(2,1fr); gap:18px; margin-bottom:40px; }
.contact-card{
  border:1px solid var(--line); border-radius:var(--r-lg); padding:24px;
  background:#fff; display:flex; gap:16px;
}
.contact-card-ico{
  width:38px; height:38px; border-radius:var(--r); flex:none; display:grid; place-items:center;
  background:var(--accent-soft); color:var(--brand);
}
.contact-card-ico svg{ width:17px; height:17px; }
.contact-card h4{ font-size:12px; font-weight:600; letter-spacing:.1em; text-transform:uppercase; color:var(--muted-2); margin-bottom:6px; }
.contact-card b{ display:block; font-family:var(--mono); font-size:16px; color:var(--ink); font-weight:600; letter-spacing:-.2px; }
.contact-card p{ font-size:12.5px; color:var(--muted); margin-top:5px; line-height:1.7; }

.form-card{
  border:1px solid var(--line); border-radius:var(--r-lg); background:#fff;
  padding:32px; box-shadow:var(--shadow-sm);
}
.form-card h3{ font-size:19px; font-weight:600; color:var(--ink); margin-bottom:8px; }
.form-card > p{ font-size:13px; color:var(--muted); margin-bottom:26px; line-height:1.75; }
.form-grid{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-grid .full{ grid-column:1 / -1; }

.map-box{
  border-radius:var(--r-lg); overflow:hidden;
  border:1px solid var(--line); background:linear-gradient(150deg,#EAF2F3,#F7FBFB);
  display:block;
}
.map-box svg{ width:100%; height:auto; display:block; }

/* =========================================================
   FLOATING SIDE
   ========================================================= */
.float-dock{
  position:fixed; right:20px; bottom:100px; z-index:70;
  display:flex; flex-direction:column; gap:1px;
  border-radius:var(--r); overflow:hidden; box-shadow:var(--shadow);
  border:1px solid var(--line); background:#fff;
}
.dock-btn{
  width:52px; height:52px; display:grid; place-items:center; gap:0;
  background:#fff; color:var(--brand); cursor:pointer; border:0;
  transition:background .18s, color .18s; position:relative;
}
.dock-btn + .dock-btn{ border-top:1px solid var(--line); }
.dock-btn:hover{ background:var(--brand); color:#fff; }
.dock-btn svg{ width:19px; height:19px; }
.dock-btn .tip{
  position:absolute; right:calc(100% + 10px); top:50%; transform:translateY(-50%) scale(.96);
  background:var(--ink); color:#fff; font-size:12px; padding:6px 11px; border-radius:2px;
  white-space:nowrap; opacity:0; pointer-events:none; transition:all .18s;
}
.dock-btn:hover .tip{ opacity:1; transform:translateY(-50%) scale(1); }

/* reveal animation */
.reveal{ opacity:0; transform:translateY(18px); }
.reveal.in{ opacity:1; transform:none; transition:opacity .6s ease, transform .6s cubic-bezier(.2,.7,.3,1); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:1180px){
  .hero .wrap{ grid-template-columns:1fr; gap:44px; }
  .hero-molecule{ opacity:.28; right:-18%; }
  .prod-grid{ grid-template-columns:repeat(3,1fr); }
  .result-grid{ grid-template-columns:repeat(2,1fr); }
  .footer-top{ grid-template-columns:1.4fr 1fr 1fr 1.2fr; }
  .footer-top .f-col:nth-child(4){ display:none; }
  .pd-top{ grid-template-columns:380px 1fr; gap:32px; }
  .pd-body{ grid-template-columns:1fr 300px; gap:32px; }
}
@media (max-width:980px){
  .wrap{ padding:0 20px; }
  .topbar-left .topbar-item:nth-child(n+3){ display:none; }
  .site-header .wrap{ height:auto; padding-top:16px; padding-bottom:16px; flex-wrap:wrap; gap:16px; }
  .hd-search{ order:3; flex-basis:100%; max-width:none; }
  .hd-actions .btn span{ display:none; }
  .hd-actions .btn{ padding:0 14px; }
  .mainnav{ overflow-x:auto; }
  .mainnav .wrap{ width:max-content; min-width:100%; }
  .nav-aside{ display:none; }
  .hero h1{ font-size:37px; }
  .hero .wrap{ padding-top:56px; padding-bottom:76px; }
  .tools-card{ grid-template-columns:1fr 1fr; }
  .tool{ border-bottom:1px solid var(--line); }
  .tool:nth-child(2){ border-right:0; }
  .tools{ margin-top:-28px; }
  .section{ padding:64px 0; }
  .sec-head{ flex-direction:column; align-items:flex-start; gap:18px; margin-bottom:32px; }
  .sec-head h2{ font-size:26px; }
  .cat-row{ grid-template-columns:48px 1fr 34px; gap:16px; padding:20px 0; }
  .cat-sub{ grid-column:1 / -1; grid-row:2; padding-left:64px; }
  .prod-grid{ grid-template-columns:repeat(2,1fr); }
  .cap-grid,.about-grid{ grid-template-columns:1fr; gap:36px; }
  .qc-strip{ grid-template-columns:1fr 1fr; }
  .qc-item:nth-child(2){ border-right:0; }
  .qc-item:nth-child(1),.qc-item:nth-child(2){ border-bottom:1px solid var(--line); }
  .news-grid{ grid-template-columns:1fr; }
  .pl-layout{ grid-template-columns:1fr; }
  .sidebar{ position:static; }
  .pd-top{ grid-template-columns:1fr; }
  .pd-body{ grid-template-columns:1fr; }
  .inquiry-card{ position:static; }
  .contact-layout{ grid-template-columns:1fr; }
  .cta-band .wrap{ flex-direction:column; align-items:flex-start; gap:24px; padding:48px 20px; }
  .footer-top{ grid-template-columns:1fr 1fr; gap:32px; padding:48px 0 36px; }
  .footer-top .f-brand{ grid-column:1 / -1; }
  .value-grid{ grid-template-columns:1fr; }
  .float-dock{ display:none; }
}
@media (max-width:620px){
  .hero h1{ font-size:29px; }
  .hero-stats{ grid-template-columns:1fr 1fr; gap:18px; }
  .tools-card{ grid-template-columns:1fr; }
  .tool{ border-right:0; }
  .prod-grid,.result-grid,.contact-cards,.about-figs{ grid-template-columns:1fr; }
  .pd-spec{ grid-template-columns:1fr; }
  .pd-spec div:nth-child(odd){ border-right:0; padding-right:0; }
  .pd-spec div:nth-child(even){ padding-left:0; }
  .form-grid{ grid-template-columns:1fr; }
  .page-head h1{ font-size:27px; }
  .tl-row{ grid-template-columns:1fr; gap:8px; }
  .footer-bottom{ flex-direction:column; align-items:flex-start; }
}