/* =========================================================
   DUANYUN — Design System
   Palette: ink green / jade / copper / paper
   ========================================================= */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body, h1, h2, h3, h4, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }

/* ---------- Tokens ---------- */
:root {
  --ink: #0B1F1C;
  --ink-2: #14302B;
  --ink-3: #1E4239;
  --muted: #5A6D69;
  --muted-2: #7C8C89;
  --jade: #0E7C6B;
  --jade-2: #12A594;
  --copper: #BE7A3C;
  --copper-soft: #E9D9C6;
  --paper: #FBFAF7;
  --paper-2: #F3F0E8;
  --paper-3: #EAE6DB;
  --white: #FFFFFF;
  --line: rgba(11, 31, 28, .12);
  --line-2: rgba(11, 31, 28, .26);
  --line-dark: rgba(233, 242, 240, .16);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Consolas,
          "Liberation Mono", monospace;

  --r-sm: 8px;
  --r: 14px;
  --r-lg: 22px;
  --shell: 1240px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --shadow-1: 0 2px 6px -2px rgba(11, 31, 28, .10), 0 10px 30px -18px rgba(11, 31, 28, .28);
  --shadow-2: 0 24px 60px -30px rgba(11, 31, 28, .45);
}

::selection { background: var(--jade); color: #fff; }

body {
  font-family: var(--font);
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- Layout ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: 28px;
}
.section { padding-block: clamp(64px, 9vw, 118px); position: relative; }
.section--tight { padding-block: clamp(44px, 6vw, 72px); }
.section--paper2 { background: var(--paper-2); }
.divider { height: 1px; background: var(--line); border: 0; }

/* ---------- Type ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--jade);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--copper);
}
.eyebrow--light { color: rgba(233, 242, 240, .72); }

h1, h2, h3, h4 { font-weight: 600; letter-spacing: -.022em; line-height: 1.18; }
.h-display { font-size: clamp(38px, 5.4vw, 68px); letter-spacing: -.035em; line-height: 1.06; }
.h1 { font-size: clamp(32px, 4vw, 50px); }
.h2 { font-size: clamp(27px, 3.2vw, 40px); }
.h3 { font-size: clamp(19px, 1.6vw, 23px); }
.h4 { font-size: 17px; }

.lead {
  font-size: clamp(15px, 1.15vw, 17px);
  color: var(--muted);
  max-width: 62ch;
  line-height: 1.85;
}
.lead--light { color: rgba(233, 242, 240, .74); }

.mono { font-family: var(--mono); letter-spacing: .04em; }
.accent { color: var(--jade); }
.copper { color: var(--copper); }

/* ---------- Section head ---------- */
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: clamp(34px, 4vw, 56px); }
.sec-head__body { max-width: 640px; }
.sec-head .lead { margin-top: 16px; }
.sec-head__aside { flex: 0 0 auto; padding-bottom: 6px; }

/* ---------- Buttons ---------- */
.btn {
  --bg: var(--jade);
  --fg: #fff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 999px;
  background: var(--bg);
  color: var(--fg);
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: .01em;
  border: 1px solid transparent;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .3s, color .3s, border-color .3s;
  cursor: pointer;
  white-space: nowrap;
}
.btn svg { width: 15px; height: 15px; transition: transform .35s var(--ease); }
.btn:hover { transform: translateY(-2px); box-shadow: 0 14px 28px -16px rgba(14, 124, 107, .8); }
.btn:hover svg { transform: translateX(4px); }
.btn-primary { background: var(--jade); color: #fff; }
.btn-primary:hover { background: #0B6C5D; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); box-shadow: none; }
.btn-light { background: var(--paper); color: var(--ink); }
.btn-light:hover { background: #fff; }
.btn-outline-light { background: transparent; color: #EAF2F0; border-color: rgba(233, 242, 240, .32); }
.btn-outline-light:hover { background: rgba(233, 242, 240, .1); border-color: rgba(233, 242, 240, .5); box-shadow: none; }
.btn-sm { padding: 10px 18px; font-size: 13.5px; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 500; color: var(--jade);
  border-bottom: 1px solid rgba(14, 124, 107, .28);
  padding-bottom: 2px;
  transition: gap .3s var(--ease), border-color .3s, color .3s;
}
.link-arrow svg { width: 13px; height: 13px; }
.link-arrow:hover { gap: 14px; border-color: var(--jade); }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  transition: background .4s var(--ease), border-color .4s, box-shadow .4s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(251, 250, 247, .88);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom-color: var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 26px;
  height: 78px;
  transition: height .4s var(--ease);
}
.site-header.is-scrolled .header-inner { height: 66px; }

.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand-mark { width: 34px; height: 34px; color: var(--jade); flex: 0 0 auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 17px; letter-spacing: .04em; font-weight: 600; }
.brand-text em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .3em;
  color: var(--muted-2);
  margin-top: 4px;
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  position: relative;
  padding: 9px 13px;
  font-size: 14.5px;
  color: var(--ink-2);
  border-radius: 8px;
  transition: color .25s, background .25s;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 13px; right: 13px; bottom: 4px;
  height: 1px;
  background: var(--jade);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s var(--ease);
}
.nav a:hover { color: var(--jade); }
.nav a:hover::after { transform: scaleX(1); }
.nav a.is-active { color: var(--jade); }
.nav a.is-active::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.tel {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-2);
  letter-spacing: .02em;
}
.tel svg { width: 14px; height: 14px; color: var(--jade); }

.burger {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line-2);
  background: transparent;
  border-radius: 50%;
  position: relative;
  cursor: pointer;
}
.burger span {
  position: absolute; left: 50%; width: 16px; height: 1.5px;
  background: var(--ink);
  transform: translateX(-50%);
  transition: transform .35s var(--ease), opacity .25s;
}
.burger span:nth-child(1) { top: 17px; }
.burger span:nth-child(2) { top: 24px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateX(-50%) translateY(3.5px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { transform: translateX(-50%) translateY(-3.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-top: clamp(120px, 15vh, 176px);
  padding-bottom: clamp(56px, 7vw, 92px);
  overflow: hidden;
  background:
    radial-gradient(900px 520px at 78% 8%, rgba(18, 165, 148, .13), transparent 62%),
    radial-gradient(700px 420px at 8% 92%, rgba(190, 122, 60, .12), transparent 60%),
    var(--paper);
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(11, 31, 28, .045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 31, 28, .045) 1px, transparent 1px);
  background-size: 76px 76px;
  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%);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}
.hero-copy { max-width: 640px; }
.hero h1 { margin-bottom: 24px; }
.hero .lead { font-size: clamp(15px, 1.25vw, 17.5px); }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }
.tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-2);
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, .6);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.hero-visual { position: relative; aspect-ratio: 1 / 1; }
.mol { width: 100%; height: 100%; overflow: visible; }
.mol .spin-slow { transform-origin: 300px 300px; animation: spin 88s linear infinite; }
.mol .spin-rev { transform-origin: 300px 300px; animation: spin 120s linear infinite reverse; }
.mol .pulse { animation: pulse 4.6s ease-in-out infinite; }
.mol .pulse:nth-of-type(2n) { animation-delay: 1.2s; }
.mol .pulse:nth-of-type(3n) { animation-delay: 2.4s; }
.mol .orbit { animation: spin 60s linear infinite; transform-origin: 300px 300px; }
.mol .orbit-b { animation: spin 44s linear infinite reverse; transform-origin: 300px 300px; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { opacity: .35; r: 3; } 50% { opacity: 1; r: 4.6; } }

.hero-badge {
  position: absolute;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: var(--shadow-1);
}
.hero-badge b { display: block; font-family: var(--mono); font-size: 15px; letter-spacing: .01em; color: var(--jade); }
.hero-badge span { font-size: 11.5px; color: var(--muted); letter-spacing: .04em; }
.hero-badge--a { top: 4%; right: 4%; animation: float 7s ease-in-out infinite; }
.hero-badge--b { bottom: 8%; left: 0; animation: float 9s ease-in-out infinite reverse; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ---------- Stat row ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stat { padding: 30px 26px; border-left: 1px solid var(--line); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat__num {
  font-size: clamp(26px, 2.6vw, 36px);
  font-weight: 600;
  letter-spacing: -.03em;
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.stat__num em { font-style: normal; font-size: .5em; color: var(--copper); font-weight: 500; }
.stat__label { margin-top: 10px; font-size: 13px; color: var(--muted); letter-spacing: .02em; }

/* ---------- Ribbon ---------- */
.ribbon {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: var(--paper-2);
  padding-block: 15px;
}
.ribbon-track { display: flex; width: max-content; animation: marquee 46s linear infinite; }
.ribbon-track span {
  display: inline-flex; align-items: center; gap: 26px;
  padding-inline: 26px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-2);
  white-space: nowrap;
}
.ribbon-track span::after { content: "◇"; color: var(--copper); font-size: 9px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- About split ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
}
.split--rev .split__media { order: 2; }

.media-panel {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(150deg, #0B1F1C 0%, #14403A 52%, #0E7C6B 130%);
  aspect-ratio: 4 / 3.4;
  box-shadow: var(--shadow-2);
}
.media-panel svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.media-panel__caption {
  position: absolute;
  left: 22px; bottom: 20px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(233, 242, 240, .7);
}
.media-frame { position: relative; }
.media-frame::after {
  content: "";
  position: absolute;
  inset: 14px -14px -14px 14px;
  border: 1px solid var(--line-2);
  border-radius: var(--r-lg);
  z-index: -1;
}

.about-points { margin-top: 28px; display: grid; gap: 0; }
.about-point {
  display: flex; gap: 16px;
  padding-block: 16px;
  border-top: 1px solid var(--line);
}
.about-point:last-child { border-bottom: 1px solid var(--line); }
.about-point__k {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--copper);
  letter-spacing: .1em;
  padding-top: 4px;
  flex: 0 0 28px;
}
.about-point__t { font-size: 15px; font-weight: 600; }
.about-point__d { font-size: 13.5px; color: var(--muted); margin-top: 3px; line-height: 1.65; }

/* ---------- Category rail (vertical list) ---------- */
.cat-list { border-top: 1px solid var(--line); }
.cat-item {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto 40px;
  align-items: center;
  gap: 18px;
  padding: 22px 8px 22px 4px;
  border-bottom: 1px solid var(--line);
  transition: background .35s var(--ease), padding-left .35s var(--ease);
  position: relative;
}
.cat-item::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--jade);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .4s var(--ease);
}
.cat-item:hover { background: rgba(255, 255, 255, .66); padding-left: 18px; }
.cat-item:hover::before { transform: scaleY(1); }
.cat-item__i { font-family: var(--mono); font-size: 11.5px; color: var(--muted-2); letter-spacing: .08em; }
.cat-item__n { font-size: clamp(17px, 1.6vw, 20px); font-weight: 600; letter-spacing: -.01em; }
.cat-item__e { font-family: var(--mono); font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted-2); margin-top: 5px; }
.cat-item__c { font-family: var(--mono); font-size: 11.5px; color: var(--muted); white-space: nowrap; }
.cat-item__arrow {
  width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid var(--line-2);
  display: grid; place-items: center;
  color: var(--ink-2);
  transition: background .35s, color .35s, border-color .35s, transform .35s var(--ease);
}
.cat-item__arrow svg { width: 12px; height: 12px; }
.cat-item:hover .cat-item__arrow { background: var(--jade); border-color: var(--jade); color: #fff; transform: rotate(-45deg); }

/* ---------- Product card ---------- */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.prod-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 26px 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 210px;
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .35s;
  overflow: hidden;
}
.prod-card::after {
  content: "";
  position: absolute; inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--jade), var(--copper));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .5s var(--ease);
}
.prod-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-1); border-color: var(--line-2); }
.prod-card:hover::after { transform: scaleX(1); }
.prod-card__cat {
  font-family: var(--mono); font-size: 10px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--jade);
}
.prod-card__name { font-size: 21px; font-weight: 600; letter-spacing: -.01em; line-height: 1.3; }
.prod-card__en { font-size: 12.5px; color: var(--muted-2); margin-top: 4px; font-family: var(--mono); letter-spacing: .04em; }
.prod-card__foot {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--line-2);
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px;
}
.prod-card__cas { font-family: var(--mono); font-size: 12px; color: var(--ink-2); letter-spacing: .02em; }
.prod-card__cas b { color: var(--muted-2); font-weight: 400; font-size: 10px; letter-spacing: .12em; display: block; margin-bottom: 2px; text-transform: uppercase; }
.prod-card__go { font-size: 12.5px; color: var(--copper); display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; }
.prod-card__go svg { width: 11px; height: 11px; }
.prod-card:hover .prod-card__go { color: var(--jade); }

/* ---------- Dark panel ---------- */
.panel-dark {
  background: linear-gradient(165deg, #0A2320 0%, #0C2E29 46%, #0A2320 100%);
  color: #EAF2F0;
  position: relative;
  overflow: hidden;
}
.panel-dark::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 82% 12%, rgba(18, 165, 148, .26), transparent 46%),
    radial-gradient(circle at 6% 88%, rgba(190, 122, 60, .16), transparent 44%);
  pointer-events: none;
}
.panel-dark > .shell { position: relative; }

.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; margin-top: 44px; }
.step { padding: 26px 22px 0 0; position: relative; }
.step::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--line-dark);
}
.step::after {
  content: "";
  position: absolute; top: -3px; left: 0;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--jade-2);
  box-shadow: 0 0 0 4px rgba(18, 165, 148, .18);
}
.step__i { font-family: var(--mono); font-size: 11px; letter-spacing: .16em; color: rgba(233, 242, 240, .5); }
.step__t { font-size: 16px; font-weight: 600; margin-top: 12px; }
.step__d { font-size: 13px; color: rgba(233, 242, 240, .62); margin-top: 7px; line-height: 1.62; }

/* ---------- Advantage cards ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.adv {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 30px 26px;
  background: var(--white);
  transition: transform .45s var(--ease), background .4s, border-color .4s;
}
.adv:hover { transform: translateY(-4px); border-color: var(--line-2); }
.adv__icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: grid; place-items: center;
  background: rgba(14, 124, 107, .09);
  color: var(--jade);
  margin-bottom: 20px;
}
.adv__icon svg { width: 21px; height: 21px; }
.adv__t { font-size: 17px; font-weight: 600; }
.adv__d { font-size: 13.5px; color: var(--muted); margin-top: 9px; line-height: 1.7; }

/* ---------- News ---------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card {
  display: flex; flex-direction: column;
  border-top: 1px solid var(--line-2);
  padding-top: 22px;
  transition: border-color .35s;
}
.news-card:hover { border-color: var(--jade); }
.news-card__date {
  font-family: var(--mono); font-size: 11px; letter-spacing: .14em;
  color: var(--copper); text-transform: uppercase;
}
.news-card__t { font-size: 17px; font-weight: 600; margin-top: 12px; line-height: 1.55; transition: color .3s; }
.news-card:hover .news-card__t { color: var(--jade); }
.news-card__d {
  font-size: 13.5px; color: var(--muted); margin-top: 10px; line-height: 1.72;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.news-card__more { margin-top: 18px; font-size: 12.5px; color: var(--jade); display: inline-flex; align-items: center; gap: 6px; }
.news-card__more svg { width: 11px; height: 11px; }

/* ---------- CTA band ---------- */
.cta-band {
  border-radius: var(--r-lg);
  padding: clamp(34px, 5vw, 62px);
  background: linear-gradient(120deg, #0A2320, #14403A 60%, #0E7C6B 160%);
  color: #EAF2F0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  position: relative;
  overflow: hidden;
}
.cta-band::after {
  content: "";
  position: absolute;
  right: -60px; top: -80px;
  width: 340px; height: 340px;
  border-radius: 50%;
  border: 1px solid rgba(233, 242, 240, .14);
  box-shadow: 0 0 0 46px rgba(233, 242, 240, .05), 0 0 0 92px rgba(233, 242, 240, .03);
}
.cta-band__body { position: relative; z-index: 1; max-width: 620px; }
.cta-band h2 { font-size: clamp(25px, 3vw, 38px); }
.cta-band p { color: rgba(233, 242, 240, .7); margin-top: 14px; font-size: 14.5px; }
.cta-band__actions { position: relative; z-index: 1; display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Page hero (sub pages) ---------- */
.page-hero {
  padding-top: clamp(112px, 16vh, 160px);
  padding-bottom: clamp(40px, 5vw, 64px);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(760px 380px at 84% 0%, rgba(18, 165, 148, .12), transparent 64%),
    var(--paper);
}
.page-hero__crumbs {
  font-family: var(--mono); font-size: 11px; letter-spacing: .12em;
  color: var(--muted-2); text-transform: uppercase; margin-bottom: 22px;
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.page-hero__crumbs a:hover { color: var(--jade); }
.page-hero__crumbs i { font-style: normal; color: var(--line-2); }
.page-hero h1 { max-width: 18ch; }
.page-hero .lead { margin-top: 20px; }
.page-hero__meta { display: flex; flex-wrap: wrap; gap: 26px; margin-top: 32px; }
.page-hero__meta div { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); }
.page-hero__meta b { display: block; font-family: var(--font); font-size: 15px; letter-spacing: 0; color: var(--ink); margin-top: 5px; font-weight: 600; }

/* ---------- Products page layout ---------- */
.products-layout {
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}
.filter-panel { position: sticky; top: 96px; }
.filter-panel__title {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .2em;
  text-transform: uppercase; color: var(--muted-2);
  padding-bottom: 14px; border-bottom: 1px solid var(--line-2);
  margin-bottom: 6px;
}
.filter-list { display: flex; flex-direction: column; }
.filter-btn {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  width: 100%;
  background: none; border: 0; border-bottom: 1px solid var(--line);
  padding: 14px 2px;
  font-size: 14.5px;
  color: var(--ink-2);
  cursor: pointer;
  text-align: left;
  transition: color .3s, padding-left .3s var(--ease);
}
.filter-btn span.count { font-family: var(--mono); font-size: 11px; color: var(--muted-2); }
.filter-btn:hover { color: var(--jade); padding-left: 8px; }
.filter-btn.is-active { color: var(--jade); font-weight: 600; padding-left: 8px; }
.filter-btn.is-active span.count { color: var(--copper); }

.filter-note {
  margin-top: 24px;
  padding: 18px;
  border: 1px dashed var(--line-2);
  border-radius: var(--r-sm);
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.65;
}
.filter-note a { color: var(--jade); border-bottom: 1px solid rgba(14,124,107,.3); }

.toolbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 26px;
}
.toolbar__count { font-family: var(--mono); font-size: 11.5px; letter-spacing: .1em; color: var(--muted); text-transform: uppercase; }
.toolbar__count b { color: var(--ink); }
.search {
  display: flex; align-items: center; gap: 9px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 9px 16px;
  background: var(--white);
  min-width: 260px;
  transition: border-color .3s, box-shadow .3s;
}
.search:focus-within { border-color: var(--jade); box-shadow: 0 0 0 3px rgba(14, 124, 107, .1); }
.search svg { width: 14px; height: 14px; color: var(--muted-2); flex: 0 0 auto; }
.search input { border: 0; outline: 0; background: none; width: 100%; font-size: 13.5px; }
.search input::placeholder { color: var(--muted-2); }

.empty-state {
  display: none;
  text-align: center;
  padding: 64px 24px;
  border: 1px dashed var(--line-2);
  border-radius: var(--r);
  color: var(--muted);
  font-size: 14px;
}
.empty-state b { display: block; color: var(--ink); font-size: 16px; margin-bottom: 8px; }
.empty-state.is-on { display: block; }

/* ---------- News list ---------- */
.news-list { border-top: 1px solid var(--line); }
.news-row {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr) 40px;
  gap: 26px;
  align-items: start;
  padding: 28px 8px 28px 4px;
  border-bottom: 1px solid var(--line);
  transition: background .35s var(--ease), padding-left .35s var(--ease);
}
.news-row:hover { background: rgba(255, 255, 255, .62); padding-left: 16px; }
.news-row__date {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .1em;
  text-transform: uppercase; color: var(--copper); padding-top: 5px;
}
.news-row__t { font-size: clamp(16px, 1.5vw, 18px); font-weight: 600; line-height: 1.5; }
.news-row:hover .news-row__t { color: var(--jade); }
.news-row__d {
  font-size: 13.5px; color: var(--muted); margin-top: 8px; line-height: 1.72;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-row__go {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--line-2);
  display: grid; place-items: center; color: var(--muted);
  transition: background .35s, color .35s, border-color .35s;
}
.news-row__go svg { width: 12px; height: 12px; }
.news-row:hover .news-row__go { background: var(--jade); border-color: var(--jade); color: #fff; }

/* ---------- Timeline ---------- */
.timeline { position: relative; margin-top: 12px; }
.timeline::before {
  content: "";
  position: absolute; left: 7px; top: 8px; bottom: 8px;
  width: 1px;
  background: var(--line-2);
}
.tl-item { position: relative; padding: 0 0 34px 40px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute; left: 2px; top: 8px;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--jade);
  transition: background .3s;
}
.tl-item:hover::before { background: var(--jade); }
.tl-item__y { font-family: var(--mono); font-size: 12px; letter-spacing: .12em; color: var(--copper); }
.tl-item__t { font-size: 17px; font-weight: 600; margin-top: 6px; }
.tl-item__d { font-size: 13.5px; color: var(--muted); margin-top: 6px; line-height: 1.7; max-width: 56ch; }

/* ---------- Value / quality grid ---------- */
.qual-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.qual {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 28px 26px;
  background: var(--white);
}
.qual__t { font-size: 16px; font-weight: 600; display: flex; align-items: center; gap: 10px; }
.qual__t i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--copper); display: inline-block;
}
.qual__d { font-size: 13.5px; color: var(--muted); margin-top: 10px; line-height: 1.72; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  gap: clamp(28px, 4.5vw, 64px);
  align-items: start;
}
.contact-list { border-top: 1px solid var(--line); }
.contact-row {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.contact-row__icon {
  width: 38px; height: 38px; flex: 0 0 auto;
  border-radius: 10px;
  display: grid; place-items: center;
  background: rgba(14, 124, 107, .08);
  color: var(--jade);
}
.contact-row__icon svg { width: 17px; height: 17px; }
.contact-row__k { font-family: var(--mono); font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted-2); }
.contact-row__v { font-size: 15.5px; margin-top: 5px; line-height: 1.6; }
.contact-row__v a:hover { color: var(--jade); }
.contact-row__v small { display: block; font-size: 12.5px; color: var(--muted); margin-top: 4px; }

.form-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(26px, 3.4vw, 44px);
  box-shadow: var(--shadow-1);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.field label { font-size: 12.5px; font-weight: 500; color: var(--ink-2); letter-spacing: .02em; }
.field label em { font-style: normal; color: var(--copper); }
.field input, .field textarea, .field select {
  border: 1px solid var(--line-2);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 14px;
  background: var(--paper);
  outline: none;
  transition: border-color .3s, box-shadow .3s, background .3s;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 108px; }
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: var(--jade);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(14, 124, 107, .1);
}
.form-note { font-size: 12px; color: var(--muted-2); margin-top: 14px; line-height: 1.6; }
.form-ok {
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: 10px;
  background: rgba(14, 124, 107, .1);
  color: #0B6C5D;
  font-size: 13.5px;
}
.form-ok.is-on { display: block; }

/* ---------- Footer ---------- */
.site-footer {
  background: #081916;
  color: rgba(233, 242, 240, .74);
  padding-top: clamp(52px, 6vw, 84px);
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(18, 165, 148, .5), transparent);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.5fr .8fr .8fr 1.2fr;
  gap: 40px;
  padding-bottom: 52px;
}
.footer-brand .brand-text strong { color: #fff; }
.footer-brand .brand-mark { color: var(--jade-2); }
.footer-desc { font-size: 13px; line-height: 1.8; margin-top: 18px; max-width: 34ch; color: rgba(233, 242, 240, .58); }
.footer-chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.footer-chips span {
  font-family: var(--mono); font-size: 10px; letter-spacing: .12em;
  border: 1px solid rgba(233, 242, 240, .18);
  border-radius: 4px; padding: 4px 8px;
  color: rgba(233, 242, 240, .6);
}
.footer-col h4 {
  font-size: 11px; font-family: var(--mono); letter-spacing: .18em;
  text-transform: uppercase; color: rgba(233, 242, 240, .45);
  margin-bottom: 18px; font-weight: 400;
}
.footer-col a, .footer-col p { display: block; font-size: 13.5px; padding-block: 6px; color: rgba(233, 242, 240, .74); transition: color .3s, transform .3s var(--ease); }
.footer-col a:hover { color: #fff; transform: translateX(3px); }
.footer-bottom {
  border-top: 1px solid rgba(233, 242, 240, .1);
  padding-block: 22px;
  display: flex; flex-wrap: wrap; gap: 10px 30px;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(233, 242, 240, .45);
  font-family: var(--mono);
  letter-spacing: .04em;
}

/* ---------- Reveal (progressive enhancement: only when JS is available) ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
  transition-delay: var(--d, 0ms);
  will-change: opacity, transform;
}
.js .reveal.is-in { opacity: 1; transform: none; }

/* ---------- Utilities ---------- */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 12px; }
.mt-2 { margin-top: 22px; }
.mt-3 { margin-top: 34px; }
.mt-4 { margin-top: 48px; }
.right-note { font-family: var(--mono); font-size: 11px; letter-spacing: .12em; color: var(--muted-2); text-transform: uppercase; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1120px) {
  .nav a { padding: 9px 10px; font-size: 14px; }
  .tel { display: none; }
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-col--contact { grid-column: 1 / -1; }
}

@media (max-width: 1024px) {
  .products-layout { grid-template-columns: 1fr; }
  .filter-panel { position: static; }
  .filter-list { flex-direction: column; }
  .filter-note { display: none; }
  .adv-grid, .news-grid, .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 26px; }
  .step:nth-child(odd)::before { background: var(--line-dark); }
}

@media (max-width: 860px) {
  .burger { display: block; }
  .nav {
    position: fixed;
    inset: 0 0 auto 0;
    padding: 96px 28px 34px;
    background: rgba(251, 250, 247, .98);
    backdrop-filter: blur(18px);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    border-bottom: 1px solid var(--line);
    transform: translateY(-102%);
    transition: transform .5s var(--ease);
    box-shadow: var(--shadow-2);
  }
  .nav.is-open { transform: none; }
  .nav a {
    padding: 16px 4px;
    font-size: 17px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
  }
  .nav a::after { display: none; }
  .header-inner { height: 68px; }

  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero-visual { max-width: 440px; margin-inline: auto; width: 100%; }
  .hero-badge--a { top: 0; }
  .split, .split--rev { grid-template-columns: 1fr; }
  .split--rev .split__media { order: 0; }
  .media-frame::after { display: none; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat { padding: 22px 18px; }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }
  .stat:nth-child(n + 3) { border-top: 1px solid var(--line); }
  .contact-grid, .qual-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 18px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .cat-item { grid-template-columns: 32px minmax(0, 1fr) 34px; gap: 12px; }
  .cat-item__c { display: none; }
  .news-row { grid-template-columns: 90px minmax(0, 1fr); gap: 16px; }
  .news-row__go { display: none; }
}

@media (max-width: 620px) {
  .shell { padding-inline: 20px; }
  .header-actions { gap: 0; }
  .header-actions .btn { display: none; }
  .brand-text strong { font-size: 15.5px; }
  .adv-grid, .news-grid, .prod-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-tags { gap: 6px; }
  .tag { font-size: 10px; padding: 5px 10px; }
  .prod-card { min-height: 0; }
  .search { min-width: 0; width: 100%; }
  .toolbar { align-items: stretch; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .page-hero__meta { gap: 18px; }
  .news-row { grid-template-columns: 1fr; gap: 8px; }
  .news-row__date { padding-top: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; }
}