/* ===== шрифты с нашего сервера (Google Fonts недоступен в Китае) ===== */
@font-face { font-family: 'JetBrains Mono';font-style: normal;font-weight: 400;font-display: swap;src: url(fonts/JetBrainsMono-cyrillic-tDbv2o-flE.woff2) format('woff2');unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;}
@font-face { font-family: 'JetBrains Mono';font-style: normal;font-weight: 400;font-display: swap;src: url(fonts/JetBrainsMono-latin-ext-tDbv2o-flE.woff2) format('woff2');unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;}
@font-face { font-family: 'JetBrains Mono';font-style: normal;font-weight: 400;font-display: swap;src: url(fonts/JetBrainsMono-latin-tDbv2o-flE.woff2) format('woff2');unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;}
@font-face { font-family: 'JetBrains Mono';font-style: normal;font-weight: 600;font-display: swap;src: url(fonts/JetBrainsMono-cyrillic-tDbv2o-flE.woff2) format('woff2');unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;}
@font-face { font-family: 'JetBrains Mono';font-style: normal;font-weight: 600;font-display: swap;src: url(fonts/JetBrainsMono-latin-ext-tDbv2o-flE.woff2) format('woff2');unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;}
@font-face { font-family: 'JetBrains Mono';font-style: normal;font-weight: 600;font-display: swap;src: url(fonts/JetBrainsMono-latin-tDbv2o-flE.woff2) format('woff2');unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 400;font-display: swap;src: url(fonts/Manrope-cyrillic-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 400;font-display: swap;src: url(fonts/Manrope-latin-ext-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 400;font-display: swap;src: url(fonts/Manrope-latin-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 500;font-display: swap;src: url(fonts/Manrope-cyrillic-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 500;font-display: swap;src: url(fonts/Manrope-latin-ext-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 500;font-display: swap;src: url(fonts/Manrope-latin-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 600;font-display: swap;src: url(fonts/Manrope-cyrillic-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 600;font-display: swap;src: url(fonts/Manrope-latin-ext-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 600;font-display: swap;src: url(fonts/Manrope-latin-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 700;font-display: swap;src: url(fonts/Manrope-cyrillic-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 700;font-display: swap;src: url(fonts/Manrope-latin-ext-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 700;font-display: swap;src: url(fonts/Manrope-latin-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 800;font-display: swap;src: url(fonts/Manrope-cyrillic-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 800;font-display: swap;src: url(fonts/Manrope-latin-ext-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;}
@font-face { font-family: 'Manrope';font-style: normal;font-weight: 800;font-display: swap;src: url(fonts/Manrope-latin-xn7gYHE41n.woff2) format('woff2');unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;}
@font-face { font-family: 'Unbounded';font-style: normal;font-weight: 500;font-display: swap;src: url(fonts/Unbounded-cyrillic-Yq6W-LOTXC.woff2) format('woff2');unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;}
@font-face { font-family: 'Unbounded';font-style: normal;font-weight: 500;font-display: swap;src: url(fonts/Unbounded-latin-ext-Yq6W-LOTXC.woff2) format('woff2');unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;}
@font-face { font-family: 'Unbounded';font-style: normal;font-weight: 500;font-display: swap;src: url(fonts/Unbounded-latin-Yq6W-LOTXC.woff2) format('woff2');unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;}
@font-face { font-family: 'Unbounded';font-style: normal;font-weight: 600;font-display: swap;src: url(fonts/Unbounded-cyrillic-Yq6W-LOTXC.woff2) format('woff2');unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;}
@font-face { font-family: 'Unbounded';font-style: normal;font-weight: 600;font-display: swap;src: url(fonts/Unbounded-latin-ext-Yq6W-LOTXC.woff2) format('woff2');unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;}
@font-face { font-family: 'Unbounded';font-style: normal;font-weight: 600;font-display: swap;src: url(fonts/Unbounded-latin-Yq6W-LOTXC.woff2) format('woff2');unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;}
@font-face { font-family: 'Unbounded';font-style: normal;font-weight: 700;font-display: swap;src: url(fonts/Unbounded-cyrillic-Yq6W-LOTXC.woff2) format('woff2');unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;}
@font-face { font-family: 'Unbounded';font-style: normal;font-weight: 700;font-display: swap;src: url(fonts/Unbounded-latin-ext-Yq6W-LOTXC.woff2) format('woff2');unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;}
@font-face { font-family: 'Unbounded';font-style: normal;font-weight: 700;font-display: swap;src: url(fonts/Unbounded-latin-Yq6W-LOTXC.woff2) format('woff2');unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;}
/* ===== конец шрифтов ===== */
:root{
  --bg:#eef2f4; --surface:#ffffff; --ink:#17191d; --muted:#5d6370; --line:#dbe2e7;
  --dark:#111317; --dark2:#1a1d22; --dark3:#23272e; --copper:#1f8c9b; --copper-l:#62d0dc; --copper-d:#0e5761; --copper-bg:#dcf1f3;
  --ok:#2f7d5b; --r:16px;
  --shadow:0 1px 2px rgba(0,0,0,.04),0 10px 30px rgba(20,20,30,.07);
  --mono:'JetBrains Mono',ui-monospace,monospace; --disp:Unbounded,Manrope,system-ui,sans-serif;
  --metal:linear-gradient(135deg,#c4f3f7 0%,#45b5c4 35%,#0e5761 60%,#86dde6 85%,#1f8c9b 100%);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Manrope,system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.55;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
.wrap{max-width:1220px;margin:0 auto;padding:0 24px}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;font:inherit;font-weight:700;font-size:15px;
  padding:15px 24px;border-radius:12px;text-decoration:none;transition:.2s;position:relative;overflow:hidden;white-space:nowrap}
.btn-copper{background:linear-gradient(135deg,#2fa7b6,#157684);color:#fff;box-shadow:0 6px 20px rgba(31,140,155,.35),inset 0 1px 0 rgba(255,255,255,.25)}
.btn-copper:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(31,140,155,.45),inset 0 1px 0 rgba(255,255,255,.25)}
.btn-copper::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);transform:translateX(-120%);transition:.7s}
.btn-copper:hover::after{transform:translateX(120%)}
.btn-ghost{background:rgba(255,255,255,.04);color:#fff;border:1px solid rgba(255,255,255,.2)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-line{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn-line:hover{border-color:var(--ink)}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--copper);display:inline-flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
h1,h2{font-family:var(--disp);font-weight:600;letter-spacing:-.02em}
h2{font-size:clamp(26px,3.4vw,40px);line-height:1.15;margin-top:12px}
section{padding:96px 0;scroll-margin-top:64px;position:relative}
.metal-text{background:var(--metal);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:sheen 6s ease-in-out infinite}
@keyframes sheen{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}

/* reveal */
.rv{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none}*{animation:none!important;transition:none!important}}

/* header */
header{position:sticky;top:0;z-index:50;background:rgba(17,19,23,.82);backdrop-filter:blur(14px) saturate(140%);color:#fff;border-bottom:1px solid rgba(255,255,255,.07)}
.nav{display:flex;align-items:center;gap:30px;height:70px}
.logo{display:flex;align-items:center;gap:11px;text-decoration:none}
.logo-mark{width:38px;height:38px;border-radius:10px;background:var(--metal);display:grid;place-items:center;font-family:var(--disp);font-size:14px;font-weight:700;color:#fff;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 4px 14px rgba(31,140,155,.35);text-shadow:0 1px 2px rgba(0,0,0,.3)}
.logo b{font-family:var(--disp);font-weight:600;font-size:15px;letter-spacing:.04em;display:block;line-height:1.1}
.logo small{font-size:11px;color:#9aa0ab;letter-spacing:.02em}
.nav-links{display:flex;gap:26px;margin-left:auto}
.nav-links a{text-decoration:none;color:#c3c7cf;font-weight:600;font-size:14px;position:relative;padding:4px 0}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--copper-l);transform:scaleX(0);transition:.25s;transform-origin:left}
.nav-links a:hover{color:#fff}.nav-links a:hover::after{transform:scaleX(1)}
.nav-phone{font-weight:700;text-decoration:none;white-space:nowrap}
.nav .btn{padding:11px 18px;font-size:14px}
.burger{display:none;margin-left:auto;background:none;border:0;color:#fff;font-size:26px;cursor:pointer}

/* hero */
.hero{background:var(--dark);color:#fff;padding:90px 0 0;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(ellipse 80% 70% at 60% 40%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse 80% 70% at 60% 40%,#000 30%,transparent 80%)}
.glow{position:absolute;border-radius:50%;filter:blur(80px);z-index:-1;pointer-events:none}
.glow.a{width:560px;height:560px;right:-120px;top:-160px;background:rgba(47,167,182,.35)}
.glow.b{width:420px;height:420px;left:-180px;bottom:-120px;background:rgba(90,120,170,.18)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero h1{font-size:clamp(30px,4.3vw,54px);line-height:1.08;margin:22px 0 24px}
.hero p.lead{color:#b4b9c3;font-size:18px;max-width:580px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:36px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px;padding-top:28px;border-top:1px solid rgba(255,255,255,.1)}
.hero-stats b{display:block;font-family:var(--disp);font-size:28px;font-weight:600}
.hero-stats span{color:#9aa0ab;font-size:13px}
.visual{position:relative;height:500px}
.visual svg.coil{position:absolute;left:50%;top:50%;width:min(420px,100%);transform:translate(-50%,-50%);filter:drop-shadow(0 30px 50px rgba(0,0,0,.55))}
.orbit{position:absolute;left:50%;top:50%;width:440px;height:440px;margin:-220px 0 0 -220px;border:1px dashed rgba(255,255,255,.12);border-radius:50%;animation:spin 60s linear infinite}
.orbit::after{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--copper-l);top:-5px;left:50%;box-shadow:0 0 16px var(--copper-l)}
@keyframes spin{to{transform:rotate(360deg)}}
.el{position:absolute;width:92px;height:92px;border-radius:14px;padding:10px 11px;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;
  border:1px solid rgba(255,255,255,.18);box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 18px 40px rgba(0,0,0,.45);animation:float 7s ease-in-out infinite}
.el small{font-family:var(--mono);font-size:10.5px;opacity:.8}
.el b{font-family:var(--disp);font-size:28px;font-weight:600;line-height:1}
.el i{font-style:normal;font-size:10.5px;opacity:.9}
.el::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.28) 45%,transparent 60%);background-size:250% 100%;animation:sheen 5s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0) rotate(var(--r,0deg))}50%{transform:translateY(-14px) rotate(var(--r,0deg))}}
.marquee{margin-top:72px;border-top:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.02);overflow:hidden;white-space:nowrap;padding:18px 0}
.marquee div{display:inline-flex;gap:48px;animation:marq 40s linear infinite;padding-left:48px}
.marquee span{font-family:var(--mono);font-size:13px;color:#a5aab4;letter-spacing:.06em;display:inline-flex;align-items:center;gap:48px}
.marquee span::after{content:"◆";color:var(--copper);font-size:9px}
@keyframes marq{to{transform:translateX(-50%)}}

/* metal swatches (element chips) */
.m-cu{background:linear-gradient(135deg,#f0b48a,#b8693a 55%,#7d3f1c);color:#fff;--glow:rgba(224,149,95,.42)}
.m-al{background:linear-gradient(135deg,#f4f6f8,#c4cbd4 55%,#8f99a6);color:#1b1d21;--glow:rgba(200,212,228,.32)}
.m-ni{background:linear-gradient(135deg,#e6e3d6,#a8a491 55%,#6e6b5c);color:#fff;--glow:rgba(205,200,175,.3)}
.m-zn{background:linear-gradient(135deg,#dfe7ec,#9fb0bd 55%,#62717d);color:#fff;--glow:rgba(170,195,215,.3)}
.m-w{background:linear-gradient(135deg,#9aa0a8,#5a6069 55%,#2c3036);color:#fff;--glow:rgba(160,170,185,.28)}
.m-cs{background:linear-gradient(135deg,#fff1c7,#e1bf63 55%,#a7832d);color:#2a2008;--glow:rgba(235,195,95,.36)}
.m-gas{background:linear-gradient(135deg,#eafaff,#9fd8ec 55%,#4f9fbd);color:#0e2a36;--glow:rgba(120,205,235,.32)}
.m-water{background:linear-gradient(135deg,#d9ecff,#6fa3d8 55%,#2f5f94);color:#fff;--glow:rgba(95,150,225,.38)}

/* catalog */
.cat-head,.iso-head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.cat-head p,.iso-head p{color:var(--muted);max-width:560px;margin-top:14px}
.tabs{display:flex;gap:6px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);padding:5px;border-radius:14px}
.tab{border:0;background:none;border-radius:10px;padding:10px 16px;font:inherit;font-size:14px;font-weight:700;cursor:pointer;color:var(--muted);transition:.2s}
.tab:hover{color:var(--ink)}
.tab.on{background:var(--dark);color:#fff;box-shadow:0 4px 12px rgba(0,0,0,.18)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow);
  transition:transform .3s,box-shadow .3s;animation:up .6s both;animation-delay:calc(var(--i,0)*60ms)}
@keyframes up{from{opacity:0;transform:translateY(18px)}}
.card:hover{transform:translateY(-5px);box-shadow:0 22px 48px rgba(20,20,30,.14)}
.card-top{height:178px;position:relative;overflow:hidden;
  background:radial-gradient(circle at 50% 62%,var(--glow,rgba(224,149,95,.35)),transparent 62%),
  linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px) 0 0/22px 22px,linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px) 0 0/22px 22px,
  linear-gradient(160deg,#272b33,#121418)}
.card-top svg.ill{position:absolute;left:50%;top:54%;width:230px;height:136px;transform:translate(-50%,-50%);transition:transform .5s;filter:drop-shadow(0 14px 18px rgba(0,0,0,.5))}
.card:hover .card-top svg.ill{transform:translate(-50%,-53%) scale(1.05)}
.badge{position:absolute;top:14px;left:14px;font-family:var(--mono);font-size:11px;padding:5px 9px;border-radius:7px;background:rgba(255,255,255,.1);color:#e9ebef;letter-spacing:.04em;border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(4px);z-index:1}
.chip{position:absolute;top:12px;right:12px;width:50px;height:50px;border-radius:10px;padding:5px 6px;display:flex;flex-direction:column;justify-content:space-between;z-index:1;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 6px 14px rgba(0,0,0,.35);overflow:hidden}
.chip small{font-family:var(--mono);font-size:9px;opacity:.8;line-height:1}
.chip b{font-family:var(--disp);font-size:17px;font-weight:600;line-height:1;white-space:nowrap}
.chip b sup{font-size:9px;font-family:var(--mono);vertical-align:top;margin-right:1px}
.chip.wide{width:auto;min-width:50px}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:14px;flex:1}
.card h3{font-size:19px;line-height:1.25;letter-spacing:-.01em}
.card .std{font-family:var(--mono);font-size:12px;color:var(--muted);margin-top:4px}
.specs{display:grid;grid-template-columns:1fr 1fr;gap:12px 14px;padding:14px;background:#f7f9fa;border:1px solid #e6ebef;border-radius:12px}
.specs div span{display:block;font-size:11.5px;color:var(--muted)}
.specs div b{font-family:var(--mono);font-size:13.5px;font-weight:600}
.card .use{font-size:14px;color:var(--muted)}
.card-actions{display:flex;gap:8px;margin-top:auto}
.card-actions .btn{padding:12px 14px;font-size:14px;flex:1;justify-content:center}
.note{margin-top:28px;font-size:13px;color:var(--muted);max-width:860px}
.direct{background:var(--dark);color:#fff;border-radius:22px;margin-top:44px;display:grid;grid-template-columns:auto 1fr auto;gap:30px;align-items:center;padding:36px 40px;position:relative;overflow:hidden;isolation:isolate}
.direct::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:rgba(47,167,182,.3);filter:blur(70px);right:-100px;top:-180px;z-index:-1}
.direct-ic{width:78px;height:78px;border-radius:18px;background:var(--metal);display:grid;place-items:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 10px 26px rgba(31,140,155,.4)}
.direct h3{font-family:var(--disp);font-weight:600;font-size:clamp(18px,2vw,23px);line-height:1.3;margin-bottom:8px}
.direct p{color:#b4b9c3;font-size:15px;max-width:720px}

/* isotopes */
.iso-wrap{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:28px;box-shadow:var(--shadow)}
.iso-search{position:relative;width:min(340px,100%);display:block}
.iso-search input{padding-left:42px}
.iso-search::before{content:"⌕";position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:18px;z-index:1}
.legend{display:flex;flex-wrap:wrap;gap:8px 18px;margin-bottom:20px;font-size:13px;color:var(--muted)}
.legend span{display:flex;align-items:center;gap:7px}
.legend i{width:12px;height:12px;border-radius:4px;display:inline-block}
.iso-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(98px,1fr));gap:9px}
.iso-el{border:1px solid var(--line);border-radius:12px;padding:10px 10px 9px 15px;background:linear-gradient(180deg,#fff,#f7f9fa);cursor:pointer;text-align:left;font:inherit;color:var(--ink);
  display:flex;flex-direction:column;gap:2px;transition:.2s;position:relative;overflow:hidden;min-width:0}
.iso-el::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--g)}
.iso-el::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 0%,var(--g),transparent 70%);opacity:0;transition:.25s}
.iso-el:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(20,20,30,.12);border-color:var(--g)}
.iso-el:hover::after{opacity:.16}
.iso-el small{font-family:var(--mono);font-size:11px;color:var(--muted)}
.iso-el b{font-family:var(--disp);font-size:23px;font-weight:600;line-height:1.15}
.iso-el span{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.iso-el em{font-style:normal;font-family:var(--mono);font-size:10.5px;color:var(--copper)}
.iso-el.dim{opacity:.15;pointer-events:none}
.iso-empty{display:none;color:var(--muted);padding:20px 0}
.g-alk{--g:#d98b5f}.g-tr{--g:#7d8ea3}.g-post{--g:#5f9e86}.g-ln{--g:#9a7cc0}.g-non{--g:#d1a83c}
.iso-top{height:120px;position:relative;background:radial-gradient(circle at 75% 30%,var(--g),transparent 65%),linear-gradient(160deg,#272b33,#121418);color:#fff;display:flex;align-items:flex-end;justify-content:space-between;padding:16px 20px}
.iso-top .sym{font-family:var(--disp);font-size:48px;font-weight:600;line-height:1}
.iso-top .z{font-family:var(--mono);font-size:12px;opacity:.75;align-self:flex-start;margin-top:40px}
.modal .iso-tbl th{font-size:12px;color:var(--muted);font-weight:600;text-align:left;padding:6px 0;border-bottom:1px solid var(--line)}
.modal .iso-tbl td{font-family:var(--mono);font-weight:600;width:auto;color:var(--ink);padding:7px 0}
.modal .iso-tbl td:last-child{text-align:right}
.iso-tbl button{border:1px solid var(--line);background:none;border-radius:8px;padding:5px 10px;font:inherit;font-size:12px;font-weight:700;cursor:pointer;color:var(--copper)}
.iso-tbl button:hover{border-color:var(--copper);background:var(--copper-bg)}

/* steps */
.dark{background:var(--dark);color:#fff;overflow:hidden;isolation:isolate}
.dark p{color:#aeb3bc}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:52px;position:relative}
.steps::before{content:"";position:absolute;top:31px;left:8%;right:8%;height:1px;background:linear-gradient(90deg,transparent,rgba(98,208,220,.6),transparent)}
.step{position:relative;text-align:left}
.step-ic{width:62px;height:62px;border-radius:18px;background:var(--dark3);border:1px solid rgba(255,255,255,.1);display:grid;place-items:center;position:relative;margin-bottom:22px;
  box-shadow:0 0 0 6px var(--dark)}
.step-ic svg{width:26px;height:26px;stroke:var(--copper-l)}
.step-ic em{position:absolute;top:-8px;right:-8px;font-style:normal;font-family:var(--mono);font-size:11px;background:var(--copper);color:#fff;border-radius:7px;padding:2px 6px}
.step h3{font-size:18px;margin-bottom:8px}
.step p{font-size:14.5px}

/* why */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px}
.why>div{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px;transition:.3s;position:relative;overflow:hidden}
.why>div:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(20,20,30,.1);border-color:#e3c9b5}
.why .ic{width:50px;height:50px;border-radius:14px;background:var(--copper-bg);display:grid;place-items:center;margin-bottom:18px}
.why .ic svg{width:24px;height:24px;stroke:var(--copper)}
.why h3{font-size:18px;margin-bottom:8px}
.why p{color:var(--muted);font-size:15px}
.ind{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px}
.ind span{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:10px 16px;font-weight:600;font-size:14px;transition:.2s}
.ind span:hover{border-color:var(--copper);color:var(--copper)}

/* contact */
.contact-box{background:var(--dark);color:#fff;border-radius:28px;padding:56px;display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start;position:relative;overflow:hidden;isolation:isolate}
.contact-box::before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:rgba(47,167,182,.28);filter:blur(90px);left:-160px;bottom:-240px;z-index:-1}
.contact-info p{color:#aeb3bc;margin:18px 0 30px}
.cline{display:flex;flex-direction:column;gap:12px}
.cline a{display:flex;gap:14px;align-items:center;text-decoration:none;font-weight:700;font-size:17px;padding:10px 12px;margin-left:-12px;border-radius:14px;transition:.2s}
.cline a:hover{background:rgba(255,255,255,.06)}
.cline a i{width:46px;height:46px;border-radius:12px;background:rgba(98,208,220,.14);color:var(--copper-l);display:grid;place-items:center;font-style:normal}
.cline a i svg{width:22px;height:22px;stroke:currentColor}
form{background:var(--surface);color:var(--ink);border-radius:20px;padding:32px;box-shadow:0 30px 60px rgba(0,0,0,.35);display:grid;gap:14px}
form h3{font-family:var(--disp);font-weight:600;font-size:20px;margin-bottom:4px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
label{display:grid;gap:6px;font-size:13px;font-weight:600;color:var(--muted)}
input,select,textarea{font:inherit;font-size:15px;color:var(--ink);padding:13px 14px;border:1px solid var(--line);border-radius:11px;background:#fafbfc;width:100%;transition:.2s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--copper-l);box-shadow:0 0 0 4px rgba(98,208,220,.2);background:#fff}
textarea{min-height:96px;resize:vertical}
.agree{font-size:12px;font-weight:500;display:flex;gap:8px;align-items:flex-start}
.agree input{width:auto;margin-top:3px}
.form-msg{font-size:14px;font-weight:600;display:none}
.form-msg.ok{display:block;color:var(--ok)}
.form-msg.err{display:block;color:#b3261e}

footer{background:var(--dark);color:#8f95a0;padding:56px 0 30px;font-size:14px;margin-top:96px}
.foot{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08)}
.foot h4{color:#fff;font-size:14px;margin-bottom:14px}
.foot a{text-decoration:none;display:block;padding:3px 0}
.foot a:hover{color:#fff}
.foot p{max-width:340px;margin-top:14px}
.req span{display:block;font-family:var(--mono);font-size:12.5px;padding:2px 0}
.req b{color:#d4d7dd}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:12.5px}

/* modal */
.modal{position:fixed;inset:0;background:rgba(8,10,14,.66);backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;z-index:100;padding:16px}
.modal.open{display:flex;animation:fade .25s}
@keyframes fade{from{opacity:0}}
.modal-box{background:var(--surface);border-radius:20px;max-width:640px;width:100%;max-height:90vh;overflow:auto;animation:pop .3s}
@keyframes pop{from{transform:translateY(16px) scale(.98);opacity:0}}
.modal-box .card-top{height:160px}
.modal-in{padding:24px 26px 28px}
.modal-in h3{font-size:24px;margin-bottom:4px;line-height:1.25}
.modal table{width:100%;border-collapse:collapse;margin:18px 0}
.modal td{padding:9px 0;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top}
.modal td:first-child{color:var(--muted);width:46%}
.modal td:last-child{font-family:var(--mono);font-weight:600}
.x{position:absolute;bottom:12px;right:14px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.2);color:#fff;width:36px;height:36px;border-radius:50%;font-size:20px;cursor:pointer;z-index:2}
.modal .chip{display:none}

@media (max-width:1020px){
  .hero-grid,.contact-box{grid-template-columns:1fr}
  .visual{height:400px;margin-top:10px}
  .grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr;row-gap:36px}.steps::before{display:none}
  .why{grid-template-columns:1fr 1fr}
  .foot{grid-template-columns:1fr 1fr}
  .direct{grid-template-columns:auto 1fr}.direct .btn{grid-column:1/-1;justify-self:start}
  .nav-links,.nav-phone,.nav .btn{display:none}
  .burger{display:block}
  .nav.open{flex-wrap:wrap;height:auto;padding:14px 0}
  .nav.open .nav-links{display:flex;flex-direction:column;width:100%;gap:14px;padding:10px 0}
  .nav.open .nav-phone{display:block}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  section{padding:68px 0}
  .hero{padding-top:56px}
  .visual{height:320px}
  .visual svg.coil{width:270px}
  .orbit{width:300px;height:300px;margin:-150px 0 0 -150px}
  .el{width:70px;height:70px;padding:8px}.el b{font-size:21px}.el i{display:none}
  .grid,.steps,.why,.row2,.foot{grid-template-columns:1fr}
  .hero-stats{gap:12px}.hero-stats b{font-size:17px;white-space:nowrap}.hero-stats span{font-size:12px}
  .direct{grid-template-columns:1fr;padding:28px 22px}
  .contact-box{padding:28px 18px;border-radius:22px}
  form{padding:22px}
  .iso-wrap{padding:16px}
  .iso-grid{grid-template-columns:repeat(auto-fill,minmax(84px,1fr))}
  .marquee{margin-top:48px}
}

/* ===== ссылки в карточках ===== */
.card h3 a,.card>a{text-decoration:none;color:inherit;display:block}
.card h3 a:hover{color:var(--copper)}
.iso-info{font-size:14px;color:var(--muted)}
.iso-info b{color:var(--ink)}

/* ===== экспорт ===== */
.export{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:28px;padding:52px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.ex-lead{color:var(--muted);margin:16px 0 22px;max-width:620px}
.ex-list{list-style:none;display:grid;gap:12px;margin-bottom:24px}
.ex-list li{padding-left:30px;position:relative;color:var(--muted);font-size:15px}
.ex-list li::before{content:"";position:absolute;left:0;top:3px;width:18px;height:18px;border-radius:6px;background:var(--copper-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231f8c9b' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/12px no-repeat}
.ex-list b{color:var(--ink)}
.ex-regions{display:flex;flex-wrap:wrap;gap:8px}
.ex-regions span{border:1px solid var(--line);border-radius:999px;padding:7px 13px;font-size:13px;font-weight:700;background:#f7f9fa}
.ex-regions span:last-child{border-style:dashed;color:var(--muted)}
.ex-note{font-size:12.5px;color:var(--muted);margin-top:20px;max-width:620px}
.globe svg{width:100%;max-width:400px;display:block;margin:0 auto;filter:drop-shadow(0 30px 40px rgba(20,20,30,.25))}
.globe .arcs path{stroke-dasharray:6 8;animation:dash 3s linear infinite}
@keyframes dash{to{stroke-dashoffset:-56}}
.globe .pulse{transform-origin:175px 135px;animation:pulse 2.4s ease-out infinite}
@keyframes pulse{from{transform:scale(.6);opacity:1}to{transform:scale(2.2);opacity:0}}

/* ===== страница продукта / элемента ===== */
.p-hero{background:var(--dark);color:#fff;padding:40px 0 72px;overflow:hidden;isolation:isolate}
.p-hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(ellipse 80% 80% at 30% 50%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse 80% 80% at 30% 50%,#000 30%,transparent 80%)}
.crumbs{font-size:13px;color:#8f95a0;margin-bottom:34px;display:flex;flex-wrap:wrap;gap:8px}
.crumbs a{text-decoration:none;color:#c3c7cf}.crumbs a:hover{color:#fff}
.crumbs span{color:#8f95a0}
.p-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:52px;align-items:center}
.p-visual .card-top{height:380px;border-radius:24px;border:1px solid rgba(255,255,255,.08);box-shadow:0 40px 80px rgba(0,0,0,.45)}
.p-visual .card-top svg.ill{width:440px;height:260px;max-width:92%}
.p-visual .chip{width:78px;height:78px;padding:8px 10px;top:18px;right:18px;border-radius:14px}
.p-visual .chip b{font-size:27px}.p-visual .chip small{font-size:11px}.p-visual .chip.wide{width:auto}
.p-visual .badge{top:20px;left:20px;font-size:12px}
.p-hero h1{font-size:clamp(28px,3.6vw,44px);line-height:1.12;margin:16px 0 10px}
.p-hero .std{font-family:var(--mono);font-size:13px;color:#a5aab4}
.p-hero .lead{color:#b4b9c3;font-size:17px;margin:20px 0 26px}
.p-keys{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.p-keys div{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);border-radius:14px;padding:13px 15px}
.p-keys span{display:block;font-size:12px;color:#9aa0ab}
.p-keys b{font-family:var(--mono);font-size:15px;font-weight:600}
.p-hero .hero-cta{margin-top:28px}
.p-body{padding:72px 0}
.p-cols{display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:start}
.p-cols h2{font-size:clamp(22px,2.4vw,28px);margin:0 0 18px}
.p-cols h2:not(:first-child){margin-top:44px}
.spec-tbl{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.spec-tbl td{padding:14px 20px;border-bottom:1px solid #e6ebef;font-size:15px;vertical-align:top}
.spec-tbl tr:last-child td{border-bottom:0}
.spec-tbl td:first-child{color:var(--muted);width:45%}
.spec-tbl td:last-child{font-family:var(--mono);font-weight:600}
.spec-tbl tr:nth-child(even){background:#fafbfc}
.uses{display:flex;flex-wrap:wrap;gap:10px}
.uses span{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:10px 16px;font-weight:600;font-size:14px}
.p-side{display:grid;gap:16px;position:sticky;top:90px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px 22px 20px;box-shadow:var(--shadow)}
.side-card h3{font-size:16px;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.side-card h3 i{width:34px;height:34px;border-radius:10px;background:var(--copper-bg);display:grid;place-items:center}
.side-card h3 i svg{width:18px;height:18px;stroke:var(--copper)}
.side-card p,.side-card li{font-size:14px;color:var(--muted)}
.side-card ul{list-style:none;display:grid;gap:6px}
.side-card li::before{content:"— ";color:var(--copper)}
.side-card.dark-card{background:var(--dark);color:#fff;border:0}
.side-card.dark-card p{color:#aeb3bc}
.side-card .btn{width:100%;justify-content:center;margin-top:14px}
.related{padding:0 0 96px}
.related .grid .card-top{height:150px}
.related .card-body{gap:6px;padding:18px 20px 20px}
.related .card h3{font-size:17px}

/* элемент (изотопы) */
.big-el{width:min(340px,100%);aspect-ratio:1;margin:0 auto;border-radius:28px;padding:26px 28px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden;
  background:radial-gradient(circle at 80% 15%,var(--g),transparent 70%),linear-gradient(160deg,#2a2e36,#121418);border:1px solid rgba(255,255,255,.1);box-shadow:0 40px 80px rgba(0,0,0,.45)}
.big-el::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:var(--g)}
.big-el small{font-family:var(--mono);font-size:16px;color:#c3c7cf}
.big-el b{font-family:var(--disp);font-size:120px;line-height:1;font-weight:600}
.big-el span{font-size:20px;font-weight:700}
.big-el em{font-style:normal;font-family:var(--mono);font-size:13px;color:var(--copper-l)}
.iso-page-tbl{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:6px 22px;box-shadow:var(--shadow)}
.iso-page-tbl .iso-tbl{width:100%;border-collapse:collapse}
.iso-page-tbl th{font-size:12px;color:var(--muted);font-weight:600;text-align:left;padding:12px 0;border-bottom:1px solid var(--line)}
.iso-page-tbl td{font-family:var(--mono);font-weight:600;padding:12px 0;border-bottom:1px solid #e6ebef}
.iso-page-tbl tr:last-child td{border-bottom:0}
.iso-page-tbl td:last-child{text-align:right}
.iso-page-tbl .iso-info{margin:14px 0 4px}
.el-links{display:grid;grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:6px}
.el-links a{text-decoration:none;border:1px solid var(--line);border-radius:10px;padding:8px 6px;text-align:center;background:var(--surface);font-family:var(--disp);font-weight:600;font-size:16px;position:relative;overflow:hidden}
.el-links a::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--g)}
.el-links a:hover{border-color:var(--g)}
.el-links a.on{background:var(--dark);color:#fff}

@media (max-width:1020px){
  .export{grid-template-columns:1fr;padding:32px}
  .globe{max-width:320px;margin:0 auto}
  .p-grid,.p-cols{grid-template-columns:1fr}
  .p-side{position:static}
  .p-visual .card-top{height:300px}
}
@media (max-width:640px){
  .export{padding:24px 18px;border-radius:22px}
  .p-hero{padding:28px 0 52px}
  .p-visual .card-top{height:230px}
  .p-visual .card-top svg.ill{width:300px;height:180px}
  .p-keys{grid-template-columns:1fr 1fr}
  .spec-tbl td{padding:12px 14px;font-size:14px}
  .big-el{width:240px}.big-el b{font-size:84px}
}

/* ===== фото товара ===== */
.card-top.has-photo{background:#16181c}
.card-top img.ph{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 62%;transition:transform .6s}
.card-top.has-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.35),transparent 35%,transparent 70%,rgba(0,0,0,.25));pointer-events:none}
.card:hover .card-top img.ph{transform:scale(1.05)}
.hero-photo{position:absolute;left:50%;top:50%;width:min(400px,86%);transform:translate(-50%,-50%) rotate(2deg);margin:0;border-radius:22px;overflow:hidden;
  border:1px solid rgba(255,255,255,.14);box-shadow:0 40px 80px rgba(0,0,0,.6),0 0 0 8px rgba(255,255,255,.03)}
.hero-photo img{display:block;width:100%;aspect-ratio:684/689;object-fit:cover}
.hero-photo figcaption{position:absolute;right:12px;bottom:12px;font-family:var(--mono);font-size:12px;background:rgba(17,19,23,.75);backdrop-filter:blur(6px);padding:6px 10px;border-radius:8px;color:#e9ebef}
.tag{position:absolute;background:rgba(26,29,34,.82);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:10px 14px;
  font-family:var(--disp);font-weight:600;font-size:15px;color:#fff;box-shadow:0 18px 40px rgba(0,0,0,.45);animation:float 7s ease-in-out infinite;z-index:2}
.tag small{display:block;font-family:Manrope,sans-serif;font-weight:600;font-size:11.5px;color:var(--copper-l);margin-top:2px}
.visual .el{z-index:2}
/* сертификат на странице товара */
.cert{display:grid;grid-template-columns:1fr;gap:12px}
.cert a{display:block;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff;box-shadow:var(--shadow);transition:.25s}
.cert a:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(20,20,30,.12)}
.cert img{display:block;width:100%}
.cert p{font-size:13px;color:var(--muted)}
@media (max-width:640px){.hero-photo figcaption{display:none}.tag{font-size:12.5px;padding:8px 10px}.tag small{font-size:10px}.hero-photo{width:78%}}

/* ===== фото продукции ===== */
.photo-grid{display:grid;grid-template-columns:1.4fr 1fr;grid-template-rows:repeat(2,240px);gap:16px;margin-top:40px}
.photo-grid a{position:relative;border-radius:18px;overflow:hidden;display:block;box-shadow:var(--shadow)}
.photo-grid .ph-big{grid-row:1/3}
.photo-grid img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s}
.photo-grid a:hover img{transform:scale(1.04)}
.photo-grid span{position:absolute;left:14px;bottom:14px;background:rgba(17,19,23,.75);backdrop-filter:blur(6px);color:#fff;font-size:13px;font-weight:600;padding:7px 12px;border-radius:10px}
.gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.gal a{border-radius:14px;overflow:hidden;display:block;aspect-ratio:4/3;box-shadow:var(--shadow)}
.gal img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s}
.gal a:hover img{transform:scale(1.05)}
.modal-box.wide{max-width:min(1100px,96vw);background:#000}
.lb-box{position:relative}
.lb-box img{display:block;width:100%;max-height:86vh;object-fit:contain}
.lb-box .x{top:12px;bottom:auto}
@media (max-width:640px){.photo-grid{grid-template-columns:1fr;grid-template-rows:260px 200px 200px}.photo-grid .ph-big{grid-row:auto}}

/* ===== форма и юридические страницы ===== */
.hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important;opacity:0!important}
.agree a{color:var(--copper);text-decoration:underline}
button[disabled]{opacity:.7;cursor:wait}
.foot-bottom a{color:inherit}
.foot-bottom a:hover{color:#fff}
.doc{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:48px 52px;box-shadow:var(--shadow);max-width:900px;margin:0 auto}
.doc h1{font-family:var(--disp);font-weight:600;font-size:clamp(24px,3vw,34px);line-height:1.2;margin-bottom:8px}
.doc .upd{color:var(--muted);font-size:14px;margin-bottom:28px}
.doc h2{font-size:19px;margin:30px 0 10px;font-family:Manrope,sans-serif;font-weight:800;letter-spacing:0}
.doc p,.doc li{color:#3d424b;font-size:15.5px;margin-bottom:10px}
.doc ul,.doc ol{padding-left:22px;margin-bottom:10px}
.doc table{border-collapse:collapse;width:100%;margin:8px 0 14px;font-size:14.5px}
.doc td{border:1px solid var(--line);padding:9px 12px;vertical-align:top}
.doc td:first-child{width:38%;color:var(--muted)}
.doc-wrap{padding:56px 0 0}
@media (max-width:640px){.doc{padding:26px 18px;border-radius:16px}}

/* ===== изготовители ===== */
.makers{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.maker{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}
.maker-head{display:flex;gap:12px;align-items:center}
.maker-head b{display:block;font-size:15px;line-height:1.3}
.maker-head small{display:block;font-family:var(--mono);font-size:11.5px;color:var(--muted);margin-top:3px}
.maker-tag{flex:none;width:52px;height:52px;border-radius:12px;background:var(--metal);color:#fff;display:grid;place-items:center;font-family:var(--disp);font-weight:600;font-size:11.5px;letter-spacing:-.02em;box-shadow:inset 0 1px 0 rgba(255,255,255,.4)}
.maker .spec-tbl{box-shadow:none}
.maker .spec-tbl td{padding:9px 12px;font-size:13.5px}
@media (max-width:1100px){.makers{grid-template-columns:1fr}}

/* ===== коллаж фото на первом экране ===== */
.collage{height:520px}
.collage .ph{position:absolute;display:block;border-radius:16px;overflow:hidden;background:#000;
  border:4px solid rgba(255,255,255,.92);box-shadow:0 28px 60px rgba(0,0,0,.55);transition:transform .45s cubic-bezier(.2,.8,.2,1),box-shadow .45s,z-index 0s .2s}
.collage .ph img{display:block;width:100%;height:100%;object-fit:cover}
.collage .ph span{position:absolute;left:10px;bottom:10px;background:rgba(17,19,23,.78);backdrop-filter:blur(6px);color:#fff;font-size:12px;font-weight:700;padding:5px 9px;border-radius:8px}
.collage .ph:hover{z-index:10!important;box-shadow:0 40px 80px rgba(0,0,0,.65);transition:transform .45s cubic-bezier(.2,.8,.2,1),box-shadow .45s,z-index 0s}
.collage .ph-1{left:0;top:3%;width:58%;aspect-ratio:903/530;transform:rotate(-6deg);z-index:1}
.collage .ph-2{right:0;top:0;width:38%;aspect-ratio:918/870;transform:rotate(7deg);z-index:2}
.collage .ph-3{right:0;bottom:3%;width:54%;aspect-ratio:951/505;transform:rotate(4deg);z-index:4}
.collage .ph-main{left:20%;top:30%;width:44%;aspect-ratio:684/689;transform:rotate(-1.5deg);z-index:3}
.collage .ph-1:hover{transform:rotate(-3deg) scale(1.04)}
.collage .ph-2:hover{transform:rotate(3deg) scale(1.05)}
.collage .ph-3:hover{transform:rotate(1deg) scale(1.04)}
.collage .ph-main:hover{transform:rotate(0) scale(1.03)}
.collage .tag{z-index:6}
@media (max-width:1020px){.collage{height:480px;max-width:620px;margin:10px auto 0;width:100%}}
@media (max-width:640px){
  .collage{height:330px}
  .collage .ph{border-width:3px;border-radius:12px}
  .collage .ph span{display:none}
  .collage .tag{font-size:12px;padding:7px 9px}
}

/* ===== первый экран: выгоды и компактность ===== */
.hero{padding-top:56px}
.hero h1{font-size:clamp(30px,4vw,50px);margin:18px 0 18px}
.hero p.lead{font-size:17px}
.hero-points{list-style:none;display:grid;gap:10px;margin-top:22px}
.hero-points li{position:relative;padding-left:32px;font-weight:600;font-size:16px;color:#e9ebef}
.hero-points li::before{content:"";position:absolute;left:0;top:1px;width:22px;height:22px;border-radius:7px;background:rgba(98,208,220,.16) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2362d0dc' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/13px no-repeat}
.hero-cta{margin-top:28px}
.hero-note{margin-top:12px;font-size:13px;color:#8f95a0}
.hero-stats{margin-top:30px;padding-top:22px}
.marquee{margin-top:44px}
.collage{height:480px}

/* ===== плавающие кнопки связи ===== */
.fab{position:fixed;right:18px;bottom:18px;z-index:60;display:flex;flex-direction:column;align-items:flex-end;gap:10px;transition:opacity .3s,transform .3s}
.fab.hide{opacity:0;transform:translateY(20px);pointer-events:none}
.fab a{display:flex;align-items:center;gap:8px;text-decoration:none;color:#fff;border-radius:999px;box-shadow:0 10px 26px rgba(0,0,0,.3);transition:transform .2s}
.fab a:hover{transform:translateY(-2px)}
.fab svg{width:24px;height:24px;flex:none}
.fab-wa{background:#25d366;padding:12px 18px 12px 14px;font-weight:700;font-size:15px}
.fab-tel{background:linear-gradient(135deg,#2fa7b6,#157684);width:52px;height:52px;justify-content:center}
@media (min-width:1021px){.fab-tel{display:none!important}}
@media (max-width:640px){.fab{right:12px;bottom:12px}.fab-wa span{display:none}.fab-wa{width:54px;height:54px;padding:0;justify-content:center}.fab-wa svg{width:28px;height:28px}
  .hero-points li{font-size:15px}.collage{height:330px}}
@media (min-width:1021px){
  .hero h1{font-size:clamp(30px,3.3vw,46px);margin:14px 0 14px}
  .hero-points{margin-top:18px;gap:8px}
  .hero-cta{margin-top:22px}
  .hero-stats{margin-top:22px;padding-top:18px}
  .hero-stats b{font-size:24px}
}

/* ===== мессенджеры ===== */
.cline a .max-ic{font-family:var(--disp);font-size:11px;font-weight:700;letter-spacing:.02em}
.cline a.nolink{cursor:default}
.cline a.nolink:hover{background:none}
.fab-tg{background:#2aabee;width:52px;height:52px;justify-content:center}
.fab-tg svg{width:24px;height:24px;margin-left:-2px}
@media (max-width:640px){.fab-tg{width:54px;height:54px}}
.fab-max{background:linear-gradient(135deg,#3b82f6,#9b3ff0);width:52px;height:52px;justify-content:center;font-family:var(--disp);font-weight:700;font-size:12px;letter-spacing:.02em}
@media (max-width:640px){.fab-max{width:54px;height:54px}}

/* ===== переключатель языка ===== */
.lang-sw{font-family:var(--disp);font-weight:600;font-size:12px;letter-spacing:.06em;color:#e9ebef;text-decoration:none;border:1px solid rgba(255,255,255,.25);border-radius:8px;padding:6px 9px;transition:.2s}
.lang-sw:hover{border-color:var(--copper-l);color:var(--copper-l)}
@media (max-width:1020px){.lang-sw{margin-left:auto}.burger{margin-left:12px}}

/* ===== WeChat ===== */
.cline a .wc-ic svg{fill:currentColor;stroke:none}
.wc-box{position:relative;padding:28px 28px 26px;text-align:center}
.wc-box h3{font-family:var(--disp);font-weight:600;font-size:22px;margin-bottom:14px}
.wc-box img{width:min(300px,80%);display:block;margin:0 auto;border-radius:12px;border:1px solid var(--line)}
.wc-box p{color:var(--muted);font-size:14px;margin:14px 0 0}
.wc-box .btn{margin-top:16px}
.wc-box .x{top:12px;right:12px;bottom:auto;background:#eee;color:#333;border-color:#ddd}
.fab-wc{background:#07c160;width:52px;height:52px;justify-content:center}
.fab-wc svg{width:26px;height:26px}
@media (max-width:640px){.fab-wc{width:54px;height:54px}}
/* WhatsApp — такой же круглый значок, как остальные мессенджеры */
.fab-wa{width:52px;height:52px;padding:0;justify-content:center}
.fab-wa span{display:none}
.fab-wa svg{width:28px;height:28px}
@media (max-width:640px){.fab-wa{width:54px;height:54px}}

/* ===== глобус с маршрутами ===== */
.globe svg{max-width:440px}
.globe .pts text{font-family:Manrope,sans-serif;font-weight:700;font-size:11.5px;fill:#e9ebef;paint-order:stroke;stroke:#121418;stroke-width:3px;stroke-linejoin:round}
.globe text.hub{font-family:var(--disp);font-weight:600;font-size:14px;fill:#62d0dc;paint-order:stroke;stroke:#121418;stroke-width:3px}
.globe .arcs path{stroke-dasharray:5 6;animation:dash 2.6s linear infinite}

/* ===== защита фото ===== */
img{-webkit-user-drag:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.lb-box{-webkit-touch-callout:none}

/* ===== заводы-изготовители ===== */
.plants{display:grid;grid-template-columns:1fr;gap:20px;margin-top:40px}
.plant{background:var(--surface);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);overflow:hidden;display:grid;grid-template-columns:1fr}
.plant-main{grid-template-columns:1.05fr 1fr}
.plant-gal{display:grid;grid-template-columns:1fr 1fr 1fr;grid-template-rows:1.6fr 1fr;gap:6px;min-height:420px;background:#111317;padding:6px}
.plant-gal a{position:relative;display:block;overflow:hidden;border-radius:12px}
.plant-gal .pg-big{grid-column:1/-1}
.plant-gal img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s}
.plant-gal a:hover img{transform:scale(1.05)}
.plant-gal span{position:absolute;left:8px;bottom:8px;background:rgba(17,19,23,.78);color:#fff;font-size:11.5px;font-weight:700;padding:4px 8px;border-radius:7px}
.plant-body{padding:28px 30px 30px;display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.plant-head{display:flex;gap:14px;align-items:center}
.plant-head h3{font-size:19px;line-height:1.25}
.plant-head small{color:var(--muted);font-size:13px}
.plant-body p{color:var(--muted);font-size:15px}
.plant-stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%}
.plant-stats div{background:#f7f9fa;border:1px solid #e6ebef;border-radius:12px;padding:11px 13px}
.plant-stats b{display:block;font-family:var(--disp);font-weight:600;font-size:19px}
.plant-stats span{font-size:12px;color:var(--muted)}
.plant-list{list-style:none;display:grid;gap:6px;font-size:13.5px;color:var(--muted)}
.plant-list li::before{content:"— ";color:var(--copper)}
.plant:not(.plant-main) .plant-body{flex-direction:row;flex-wrap:wrap;align-items:center}
.plant:not(.plant-main) .plant-body p{flex:1 1 100%}
@media (max-width:1020px){.plant-main{grid-template-columns:1fr}.plant-gal{min-height:340px}}
@media (max-width:640px){.plant-body{padding:20px}.plant-gal{min-height:260px}.plant-stats b{font-size:16px}}
.plant-gal{grid-template-rows:minmax(0,1.7fr) minmax(0,1fr)}
.plant-gal a{min-height:0}
.plant-gal img{position:absolute;inset:0}
@media (max-width:1020px){.plant-gal{height:380px}}
@media (max-width:640px){.plant-gal{height:300px}}

/* ===== языки ===== */
.langs{display:inline-flex;gap:6px}
:lang(zh-Hans) body, :lang(zh-Hans) input, :lang(zh-Hans) textarea, :lang(zh-Hans) select{font-family:Manrope,"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif}
:lang(zh-Hans) h1, :lang(zh-Hans) h2{font-family:Unbounded,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;letter-spacing:0}

/* ===== выпадающее меню языков ===== */
.langs{position:relative;display:inline-block}
.langs summary{list-style:none;display:flex;align-items:center;gap:6px;cursor:pointer;user-select:none;color:#e9ebef;font-family:var(--disp);font-weight:600;font-size:12.5px;letter-spacing:.04em;
  border:1px solid rgba(255,255,255,.25);border-radius:9px;padding:7px 10px;transition:.2s}
.langs summary::-webkit-details-marker{display:none}
.langs summary::after{content:"";width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translate(-2px,-2px);margin-left:2px;transition:.2s}
.langs[open] summary::after{transform:rotate(-135deg) translate(-1px,-1px)}
.langs summary:hover,.langs[open] summary{border-color:var(--copper-l);color:var(--copper-l)}
.langs summary svg{width:15px;height:15px}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);min-width:150px;background:#1a1d22;border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:6px;box-shadow:0 18px 40px rgba(0,0,0,.45);z-index:70;display:grid;gap:2px;animation:pop .18s}
.lang-menu a{display:flex;justify-content:space-between;align-items:center;gap:12px;color:#d4d7dd;text-decoration:none;font-size:14px;font-weight:600;padding:9px 12px;border-radius:8px}
.lang-menu a:hover{background:rgba(255,255,255,.07);color:#fff}
.lang-menu a.on{color:var(--copper-l)}
.lang-menu a.on::after{content:"✓";font-size:13px}
@media (max-width:1020px){.langs{margin-left:auto}.burger{margin-left:12px}}

/* второй завод — фото справа */
.plant-rev .plant-gal{order:2}
.plant-btns{display:flex;gap:8px;flex-wrap:wrap}
@media (max-width:1020px){.plant-rev .plant-gal{order:0}}

/* ===== статьи, страницы заводов, блок «Полезно знать» ===== */
.art-head{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.art-img{border-radius:20px;overflow:hidden;aspect-ratio:4/3;box-shadow:0 30px 60px rgba(0,0,0,.35)}
.art-img img{width:100%;height:100%;object-fit:cover;display:block}
.art-wrap{padding-bottom:20px}
.doc.art{max-width:980px}
.doc.art h2{font-size:21px;margin:34px 0 12px}
.doc.art a:not(.btn){color:var(--copper);text-underline-offset:3px}
.doc.art ol{padding-left:22px}
.tbl-scroll{overflow-x:auto;margin:10px 0 8px}
.art-tbl{min-width:520px}
.art-tbl th{background:var(--dark);color:#fff;text-align:left;font-weight:700;padding:10px 12px;font-size:13.5px;border:1px solid var(--dark)}
.doc .art-tbl td:first-child{width:auto}
.art-tbl tbody tr:nth-child(even) td{background:rgba(31,140,155,.05)}
.art-note{font-size:13px!important;color:var(--muted)!important}
.art-time{list-style:none;padding-left:0!important;border-left:2px solid var(--copper);margin-left:6px}
.art-time li{padding-left:18px;position:relative}
.art-time li::before{content:"";position:absolute;left:-7px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--copper)}
.art-gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px;margin:6px 0 18px}
.art-gal a{display:block;border-radius:12px;overflow:hidden;aspect-ratio:4/3}
.art-gal img{width:100%;height:100%;object-fit:cover;display:block}
.art-cta{margin-top:34px;background:var(--dark);color:#fff;border-radius:18px;padding:24px 26px;display:flex;gap:20px;align-items:center;justify-content:space-between}
.art-cta b{font-size:18px}.art-cta p{color:#aeb3bc!important;margin:6px 0 0!important;font-size:14.5px!important}
.art-cta .btn{flex:none}
.art-more{max-width:980px;margin:56px auto 22px;font-size:clamp(22px,2.4vw,28px)}
#kb .kb-lead{color:var(--muted);max-width:720px;margin-top:12px}
.kb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:18px;margin-top:30px}
.art-wrap .kb-grid{max-width:980px;margin:0 auto}
.kb-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:18px;overflow:hidden;text-decoration:none;color:inherit;box-shadow:var(--shadow);transition:transform .25s,border-color .25s}
.kb-card:hover{transform:translateY(-4px);border-color:var(--copper)}
.kb-img{display:block;aspect-ratio:16/9;overflow:hidden;background:#111317}
.kb-img img{width:100%;height:100%;object-fit:cover;display:block}
.kb-txt{display:flex;flex-direction:column;gap:6px;padding:16px 18px 20px}
.kb-txt small{font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--copper);font-weight:700}
.kb-txt b{font-size:16.5px;line-height:1.3}
.kb-txt span{font-size:14px;color:var(--muted)}
.kb-links{list-style:none;display:grid;gap:8px;margin-bottom:8px}
.kb-links a{color:var(--copper);font-weight:600}
.kb-links li::before{content:"→ ";color:var(--copper)}
@media (max-width:1020px){.art-head{grid-template-columns:1fr;gap:28px}.art-cta{flex-direction:column;align-items:flex-start}}

/* мобильное меню: боковые отступы как у страницы */
@media (max-width:1020px){
  .nav.open{padding:14px 24px}
  .nav.open .nav-links a{font-size:16px;padding:6px 0}
}
@media (max-width:640px){.nav.open{padding:14px 16px}}

/* статья без фото — медная плашка */
.art-ph,.kb-ph{display:grid;place-items:center;align-content:center;gap:4px;background:radial-gradient(circle at 30% 25%,#62d0dc,#1f8c9b 45%,#0b3a42);color:#fff}
.art-ph b{font-family:var(--disp);font-size:clamp(64px,9vw,110px);line-height:1;text-shadow:0 6px 24px rgba(0,0,0,.3)}
.art-ph small{font-family:var(--mono);font-size:16px;opacity:.85}
.kb-ph b{font-family:var(--disp);font-size:44px;line-height:1}

/* шапка на средних экранах: пунктов стало больше — не переносить и убрать телефон (он есть в кнопках справа) */
.nav-links a{white-space:nowrap}
@media (min-width:1021px) and (max-width:1260px){.nav{gap:20px}.nav-links{gap:18px}.nav-phone{display:none}}
/* применение изотопов на странице элемента */
.spec-tbl.iso-use td:first-child{width:96px;font-family:var(--mono);font-weight:600;color:var(--ink);white-space:nowrap}
.spec-tbl.iso-use td:last-child{font-family:inherit;font-weight:500;line-height:1.5}
/* таблица Менделеева в каталоге изотопов */
.iso-grid.ptable{display:grid;grid-template-columns:repeat(18,minmax(0,1fr));gap:5px;overflow-x:auto}
.ptable > *{min-width:0;aspect-ratio:1/1.08;border-radius:9px;display:flex;flex-direction:column;justify-content:space-between;padding:5px 6px 5px 9px;text-decoration:none}
.ptable .iso-el{padding:5px 5px 5px 9px}
.ptable .iso-el b,.ptable .pt-prod b,.ptable .pt-off b{font-size:clamp(14px,1.5vw,20px);line-height:1}
.ptable .iso-el small,.ptable .pt-prod small,.ptable .pt-off small{font-size:9.5px}
.ptable .iso-el span{display:none}
.ptable .iso-el em,.ptable .pt-prod em{font-size:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pt-off{border:1px dashed var(--line);color:#a3abb5;font-family:var(--disp)}
.pt-off small{font-family:var(--mono)}
.pt-prod{border:1px solid var(--copper);background:var(--copper-bg);color:var(--copper-d);position:relative}
.pt-prod small{font-family:var(--mono);opacity:.75}.pt-prod b{font-family:var(--disp);font-weight:600}
.pt-prod em{font-style:normal;font-family:var(--mono);color:var(--copper)}
.pt-prod:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(20,20,30,.12)}
.ptable .pt-ln{display:grid;place-items:center;font-family:var(--mono);font-size:10px;color:var(--muted);border:1px dashed var(--line);aspect-ratio:auto}
.ptable .pt-gap{aspect-ratio:auto;height:8px;padding:0}
@media (max-width:900px){.iso-grid.ptable{grid-template-columns:repeat(18,44px);padding-bottom:6px}}
/* раздел «Применение» */
.apps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:30px}
.app-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:22px 20px;text-decoration:none;color:var(--ink);display:flex;flex-direction:column;gap:10px;box-shadow:var(--shadow);transition:.25s}
.app-card:hover{transform:translateY(-4px);border-color:var(--copper);box-shadow:0 16px 36px rgba(20,20,30,.12)}
.app-card b{font-family:var(--disp);font-weight:600;font-size:17px;line-height:1.25}
.app-card span:not(.ic){font-size:13.5px;color:var(--muted);flex:1}
.app-card em{font-style:normal;font-weight:700;font-size:13.5px;color:var(--copper)}
.ic{width:46px;height:46px;border-radius:13px;background:var(--copper-bg);display:grid;place-items:center;flex:none}
.ic svg{width:24px;height:24px;stroke:var(--copper)}
.ic.big{width:84px;height:84px;border-radius:22px;background:rgba(98,208,220,.12);border:1px solid rgba(98,208,220,.3)}
.ic.big svg{width:44px;height:44px;stroke:var(--copper-l)}
.app-head{display:grid;grid-template-columns:auto 1fr;gap:30px;align-items:start;margin-top:26px;max-width:980px}
.app-tbl th{text-align:left;font-size:12px;color:var(--muted);font-weight:600;padding:12px 16px;border-bottom:1px solid var(--line)}
.spec-tbl.app-tbl td{padding:11px 16px;font-size:14px;width:auto}
.spec-tbl.app-tbl td:first-child{font-family:var(--mono);font-weight:600;white-space:nowrap;color:var(--ink)}
.spec-tbl.app-tbl td:first-child a{color:var(--copper);text-decoration:none}
.spec-tbl.app-tbl td:nth-child(2){color:var(--muted);font-family:inherit;font-weight:500}
.spec-tbl.app-tbl td:nth-child(3){font-family:var(--mono);white-space:nowrap}
.spec-tbl.app-tbl td:last-child{font-family:inherit;font-weight:500;line-height:1.5}
.app-prods{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
.app-links{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:10px}
.app-links a{display:flex;align-items:center;gap:12px;padding:10px 14px;border:1px solid var(--line);border-radius:14px;background:var(--surface);text-decoration:none;font-weight:600;font-size:14px;color:var(--ink)}
.app-links a:hover{border-color:var(--copper)}
.app-links .ic{width:36px;height:36px;border-radius:10px}.app-links .ic svg{width:19px;height:19px}
@media (max-width:1020px){.apps-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.apps-grid{grid-template-columns:1fr}.app-head{grid-template-columns:1fr;gap:16px}.ic.big{width:64px;height:64px}}
.logo small{white-space:nowrap}
.pt-hint{display:none;font-family:var(--mono);font-size:12px;color:var(--copper);margin-bottom:8px}
@media (max-width:900px){.pt-hint{display:block}}
.p-cols > div{min-width:0}
/* вопросы и ответы */
#faq{padding-top:0}
.faq{max-width:900px}
.faq{margin-top:26px;display:grid;gap:10px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:0 22px;box-shadow:var(--shadow)}
.faq details[open]{border-color:var(--copper)}
.faq summary{cursor:pointer;list-style:none;font-weight:700;font-size:16.5px;padding:18px 34px 18px 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:24px;font-weight:400;color:var(--copper);transition:.2s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details p{color:var(--muted);padding:0 0 18px;line-height:1.6}
@media (min-width:1021px){.kb-grid{grid-template-columns:repeat(3,1fr)}}
/* список запроса */
.cart-btn{border:1px solid var(--line);background:none;border-radius:8px;padding:5px 10px;font:inherit;font-size:12px;font-weight:700;cursor:pointer;color:var(--copper);white-space:nowrap}
.cart-btn:hover{border-color:var(--copper);background:var(--copper-bg)}
.cart-btn.in,.cart-add.in{background:var(--copper);border-color:var(--copper);color:#fff}
.iso-tbl td a{color:inherit;text-decoration:none;border-bottom:1px dashed currentColor}
.cart-bar{position:fixed;left:18px;bottom:18px;z-index:60;display:none;align-items:center;gap:12px;background:var(--dark);color:#fff;border:1px solid rgba(98,208,220,.4);border-radius:14px;padding:10px 10px 10px 16px;box-shadow:0 14px 34px rgba(0,0,0,.35);font-size:14px}
.cart-bar.show{display:flex}
.cart-bar b{color:var(--copper-l)}
.cart-bar button{border:0;border-radius:9px;background:linear-gradient(135deg,#2fa7b6,#157684);color:#fff;font:inherit;font-weight:700;padding:8px 14px;cursor:pointer}
.cart-box{position:relative;padding-top:26px}
.cart-box .x{position:absolute;right:14px;top:10px}
.cart-list{margin:16px 0 10px 20px;display:grid;gap:8px}
.cart-list li{padding-left:4px}
.cart-list li span{font-family:var(--mono);font-size:13.5px}
.cart-list li button{margin-left:10px;border:0;background:none;color:var(--muted);font-size:18px;cursor:pointer;line-height:1}
.cart-list li button:hover{color:#c0392b}
.iso-big sup{font-size:.42em;vertical-align:top;position:relative;top:.25em;margin-right:2px}
.iso-links a sup{font-size:.7em}
.sub-h{font-size:17px;margin:18px 0 10px}
.iso-use-text{font-size:16px;line-height:1.6}
@media (max-width:640px){.cart-bar{left:10px;bottom:10px;font-size:13px}}
.cart-box .x{top:10px;right:12px;bottom:auto;background:#eee;color:#333;border-color:#ddd}
.big-el b.iso-big{font-size:clamp(54px,6.6vw,88px);white-space:nowrap}
.iso-tools{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.pdf-btn{padding:13px 18px;font-size:14px;background:var(--surface)}
.pdf-btn::before{content:"↓";font-weight:800;color:var(--copper)}