/* ==========================================================================
   Mingfeng Mould — Global stylesheet
   Palette: paper / ink-navy / steel / copper
   ========================================================================== */

:root {
  --paper: #f6f7f5;
  --paper-2: #eceeeb;
  --white: #ffffff;
  --ink: #0a1a26;
  --navy: #0d2a44;
  --navy-900: #081522;
  --navy-800: #0e2437;
  --navy-700: #16374f;
  --steel: #5a7186;
  --steel-200: #d7dee2;
  --copper: #b9601c;
  --copper-600: #d0742a;
  --copper-050: #f6ece2;
  --line: rgba(10, 26, 38, 0.12);
  --line-light: rgba(255, 255, 255, 0.14);

  --font-display: "Space Grotesk", "Inter", "Segoe UI", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Segoe UI", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --shadow-sm: 0 1px 2px rgba(8, 21, 34, 0.06), 0 8px 24px -16px rgba(8, 21, 34, 0.28);
  --shadow-md: 0 24px 60px -32px rgba(8, 21, 34, 0.42);
  --radius: 14px;
  --radius-sm: 8px;

  --w: 1180px;
  --pad: clamp(20px, 4vw, 48px);
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; line-height: 1.1; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
::selection { background: var(--copper); color: #fff; }

/* ------------------------------------------------------------- layout --- */
.wrap {
  width: 100%;
  max-width: var(--w);
  margin-inline: auto;
  padding-inline: var(--pad);
}

section { position: relative; }

.section { padding-block: clamp(56px, 8vw, 108px); }
.section--tight { padding-block: clamp(40px, 5vw, 64px); }
.section--dark { background: var(--navy-900); color: #e8eef2; }
.section--alt { background: var(--white); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: currentColor;
  opacity: 0.7;
}
.section--dark .eyebrow { color: var(--copper-600); }

.h-xl { font-size: clamp(2.4rem, 5.6vw, 4.1rem); }
.h-lg { font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
.h-md { font-size: clamp(1.3rem, 2vw, 1.6rem); }

.lede {
  font-size: clamp(1rem, 1.35vw, 1.12rem);
  color: var(--steel);
  max-width: 62ch;
}
.section--dark .lede { color: #9fb3c2; }

.head-split {
  display: grid;
  gap: clamp(20px, 4vw, 56px);
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  align-items: end;
}
@media (max-width: 780px) { .head-split { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------- header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(246, 247, 245, 0.86);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}
.site-header.is-stuck {
  border-bottom-color: var(--line);
  background: rgba(246, 247, 245, 0.95);
}
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand__mark {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: linear-gradient(150deg, var(--navy-700), var(--navy-900) 62%, #1d4b6b);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 15px;
  letter-spacing: 0.02em;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}
.brand__text small {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel);
  font-weight: 500;
  line-height: 1.3;
}
.nav__links { display: flex; align-items: center; gap: 4px; }
.nav__links a {
  padding: 9px 13px;
  border-radius: 999px;
  font-size: 14.5px;
  color: #2c4152;
  transition: background 0.2s ease, color 0.2s ease;
}
.nav__links a:hover { background: rgba(13, 31, 46, 0.06); color: var(--ink); }
.nav__links a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.nav__cta { display: flex; align-items: center; gap: 10px; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 17px; height: 1.6px;
  background: var(--ink);
  position: relative;
  transition: transform 0.25s ease, opacity 0.2s ease;
}
.nav-toggle span::before,
.nav-toggle span::after { content: ""; position: absolute; left: 0; }
.nav-toggle span::before { top: -5.5px; }
.nav-toggle span::after { top: 5.5px; }
body.nav-open .nav-toggle span { transform: rotate(45deg); }
body.nav-open .nav-toggle span::before { transform: rotate(-90deg) translateX(5.5px); }
body.nav-open .nav-toggle span::after { opacity: 0; }

@media (max-width: 940px) {
  .nav-toggle { display: inline-flex; }
  .nav__links {
    position: fixed;
    inset: 72px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 16px var(--pad) 26px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    display: none;
  }
  body.nav-open .nav__links { display: flex; }
  .nav__links a { padding: 12px 14px; font-size: 16px; border-radius: 10px; }
  .nav__cta .btn { display: none; }
}

/* ------------------------------------------------------------- buttons -- */
.btn {
  --bg: var(--ink);
  --fg: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 20px;
  border-radius: 999px;
  background: var(--bg);
  color: var(--fg);
  border: 1px solid transparent;
  font-size: 14.5px;
  font-weight: 550;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.24s ease, background 0.24s ease, color 0.24s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 12px 26px -16px rgba(8, 21, 34, 0.7); }
.btn--copper { --bg: var(--copper); }
.btn--copper:hover { --bg: var(--copper-600); }
.btn--ghost {
  --bg: transparent;
  --fg: var(--ink);
  border-color: var(--line);
}
.btn--ghost:hover { --bg: rgba(13, 31, 46, 0.05); }
.section--dark .btn--ghost { --fg: #eaf2f7; border-color: var(--line-light); }
.section--dark .btn--ghost:hover { --bg: rgba(255, 255, 255, 0.08); }
.hero .btn--ghost { --fg: #eaf2f7; border-color: var(--line-light); }
.hero .btn--ghost:hover { --bg: rgba(255, 255, 255, 0.08); }
.btn--lg { padding: 15px 26px; font-size: 15.5px; }
.btn .arw { transition: transform 0.24s ease; }
.btn:hover .arw { transform: translateX(3px); }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  font-weight: 550;
  color: var(--copper);
  border-bottom: 1px solid transparent;
  transition: gap 0.2s ease, border-color 0.2s ease;
}
.link-arrow:hover { gap: 12px; border-bottom-color: currentColor; }

/* ---------------------------------------------------------------- hero -- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 82% 0%, #16374f 0%, #0b1e2e 46%, #081522 100%);
  color: #eef4f8;
  padding-block: clamp(64px, 9vw, 118px) clamp(48px, 6vw, 76px);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(90% 70% at 60% 10%, #000 20%, transparent 78%);
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 2; display: grid; gap: clamp(28px, 4vw, 56px); grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); align-items: center; }
@media (max-width: 900px) { .hero__inner { grid-template-columns: 1fr; } }

.hero h1 { font-size: clamp(2.5rem, 5.4vw, 4rem); letter-spacing: -0.03em; }
.hero h1 em { font-style: normal; color: var(--copper-600); }
.hero .lede { color: #a9becc; margin-top: 20px; max-width: 56ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px 7px 8px;
  border-radius: 999px;
  border: 1px solid var(--line-light);
  background: rgba(255, 255, 255, 0.05);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: #cfe0ea;
  margin-bottom: 22px;
}
.hero__badge b {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  background: rgba(185, 96, 28, 0.22);
  color: #f2c39b;
  padding: 3px 8px;
  border-radius: 999px;
}

/* blue-print style figure */
.hero__fig {
  position: relative;
  border: 1px solid var(--line-light);
  border-radius: 18px;
  padding: 18px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.015));
  box-shadow: 0 40px 80px -50px rgba(0, 0, 0, 0.9);
}
.hero__fig svg { width: 100%; height: auto; }
.hero__fig figcaption {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #7f97a8;
}
.stroke-anim path,
.stroke-anim circle,
.stroke-anim rect,
.stroke-anim line,
.stroke-anim polyline {
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: draw 2.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}
@keyframes draw { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .stroke-anim path,
  .stroke-anim circle,
  .stroke-anim rect,
  .stroke-anim line,
  .stroke-anim polyline { animation: none; stroke-dashoffset: 0; }
  html { scroll-behavior: auto; }
}

/* ------------------------------------------------------------ stat bar -- */
.statbar {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}
.statbar > div {
  background: var(--paper);
  padding: 26px clamp(16px, 3vw, 34px);
}
.statbar b {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 2.6vw, 2.15rem);
  letter-spacing: -0.03em;
}
.statbar span {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
}
@media (max-width: 760px) { .statbar { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* --------------------------------------------------------------- cards -- */
.grid { display: grid; gap: clamp(14px, 2vw, 22px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 980px) { .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 880px) { .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 700px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

.card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(20px, 2.4vw, 30px);
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.3, 0, 0.2, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(10, 26, 38, 0.2);
}
.card h3 { font-size: 1.16rem; margin-bottom: 10px; }
.card p { color: var(--steel); font-size: 14.6px; }
.card__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--copper);
  display: block;
  margin-bottom: 16px;
}
.card__icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--copper-050);
  color: var(--copper);
  margin-bottom: 18px;
}
.card__icon svg { width: 24px; height: 24px; stroke: currentColor; fill: none; stroke-width: 1.5; }
.card ul { margin-top: 14px; display: grid; gap: 7px; }
.card ul li {
  position: relative;
  padding-left: 17px;
  font-size: 14px;
  color: #35505f;
}
.card ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.62em;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--copper);
  opacity: 0.55;
}
.card--media { padding: 0; display: flex; flex-direction: column; }
.card--media .card__body { padding: clamp(18px, 2.2vw, 26px); }
.card--media .card__media {
  aspect-ratio: 16 / 10;
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.card--media .card__media svg { width: 100%; height: 100%; }

.card--dark {
  background: var(--navy-800);
  border-color: rgba(255, 255, 255, 0.1);
  color: #e9f1f6;
}
.card--dark p { color: #a3b8c6; }
.card--dark:hover { border-color: rgba(255, 255, 255, 0.22); }

/* --------------------------------------------------------- spec table --- */
.spec {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}
.spec caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
  padding-bottom: 12px;
}
.spec th, .spec td {
  text-align: left;
  padding: 13px 4px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.spec th { font-weight: 500; color: var(--steel); width: 42%; }
.spec td { font-weight: 550; }
.section--dark .spec th, .section--dark .spec td { border-color: var(--line-light); }
.section--dark .spec th { color: #8fa6b6; }

/* ------------------------------------------------------------- steps ---- */
.steps { counter-reset: s; display: grid; gap: 1px; background: var(--line); border-radius: var(--radius); overflow: hidden; }
.step {
  counter-increment: s;
  background: var(--white);
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 6px 18px;
  padding: 22px clamp(18px, 2.4vw, 28px);
  align-items: start;
}
.step::before {
  content: "0" counter(s);
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--copper);
  padding-top: 4px;
}
.step b { font-family: var(--font-display); font-size: 1.02rem; font-weight: 600; }
.step span { color: var(--steel); font-size: 14.3px; }
@media (max-width: 620px) { .step { grid-template-columns: 44px minmax(0, 1fr); } }

/* --------------------------------------------------------------- quote -- */
.quote {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  line-height: 1.35;
  letter-spacing: -0.02em;
  max-width: 26ch;
}

/* -------------------------------------------------------------- cta ----- */
.cta-band {
  background: linear-gradient(120deg, var(--navy-900), #16374f 72%, #1c4a68);
  color: #f0f6fa;
  border-radius: 0;
  padding-block: clamp(48px, 7vw, 88px);
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 60%; height: 220%;
  background: radial-gradient(closest-side, rgba(208, 116, 42, 0.28), transparent 70%);
}
.cta-band__inner {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  align-items: center;
  justify-content: space-between;
}
.cta-band h2 { font-size: clamp(1.6rem, 3vw, 2.35rem); max-width: 22ch; }
.cta-band p { color: #a9bfcd; margin-top: 12px; max-width: 52ch; }

/* ------------------------------------------------------------- footer --- */
.site-footer {
  background: var(--navy-900);
  color: #93a9b8;
  padding-block: clamp(44px, 6vw, 72px) 26px;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  gap: clamp(26px, 4vw, 54px);
  grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 0.85fr));
  padding-bottom: 38px;
  border-bottom: 1px solid var(--line-light);
}
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 {
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #6f8899;
  margin-bottom: 16px;
  font-weight: 500;
}
.site-footer a:hover { color: #fff; }
.site-footer li + li { margin-top: 9px; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; color: #fff; }
.footer-brand .brand__mark { background: linear-gradient(150deg, #27506d, #0e2437); }
.footer-note { color: #7c93a3; max-width: 34ch; font-size: 13.4px; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  padding-top: 22px;
  font-size: 12.8px;
  color: #6f8899;
}
.footer-bottom a { color: #9db3c1; }

/* --------------------------------------------------------------- forms -- */
.form { display: grid; gap: 16px; }
.field { display: grid; gap: 7px; }
.field > label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
}
.field input, .field textarea, .field select {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.field textarea { min-height: 132px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--copper);
  box-shadow: 0 0 0 3px rgba(185, 96, 28, 0.14);
}
.field--row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 560px) { .field--row { grid-template-columns: 1fr; } }
.form__note { font-size: 12.6px; color: var(--steel); }
.form__status {
  font-size: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  display: none;
}
.form__status.is-ok { display: block; background: #e7f4ec; color: #1c6b3f; border: 1px solid #bfe3cd; }
.form__status.is-err { display: block; background: #fdeceb; color: #8f2b22; border: 1px solid #f4c9c5; }

/* ------------------------------------------------------------ contact --- */
.contact-grid {
  display: grid;
  gap: clamp(24px, 4vw, 56px);
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: start;
}
@media (max-width: 880px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-list { display: grid; gap: 20px; margin-top: 28px; }
.contact-item { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 14px; align-items: start; }
.contact-item__ico {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: grid; place-items: center;
  background: var(--copper-050);
  color: var(--copper);
}
.contact-item__ico svg { width: 19px; height: 19px; stroke: currentColor; fill: none; stroke-width: 1.6; }
.contact-item b { display: block; font-size: 12px; font-family: var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--steel); font-weight: 500; margin-bottom: 3px; }
.contact-item span, .contact-item a { font-size: 15px; }

/* --------------------------------------------------------------- misc --- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 12.5px;
  color: #33505f;
  background: var(--white);
}
.pill--dark { background: rgba(255, 255, 255, 0.06); border-color: var(--line-light); color: #cbdee9; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; }

.logo-row {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(14px, 3vw, 40px);
  align-items: center;
}
.logo-row span {
  font-family: var(--font-display);
  font-size: clamp(0.95rem, 1.5vw, 1.15rem);
  letter-spacing: 0.02em;
  color: #7f96a5;
  opacity: 0.85;
}

.split-media {
  display: grid;
  gap: clamp(24px, 4vw, 60px);
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
}
@media (max-width: 880px) { .split-media { grid-template-columns: 1fr; } }

.frame {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--shadow-sm);
}
.frame figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.timeline { border-left: 1px solid var(--line); display: grid; gap: 26px; padding-left: 26px; }
.timeline__item { position: relative; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -31px; top: 7px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--copper);
  box-shadow: 0 0 0 4px rgba(185, 96, 28, 0.14);
}
.timeline__item b { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; color: var(--copper); }
.timeline__item h3 { font-size: 1.05rem; margin: 4px 0 6px; }
.timeline__item p { color: var(--steel); font-size: 14.4px; }

.breadcrumb { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--steel); margin-bottom: 22px; }
.breadcrumb a:hover { color: var(--copper); }

.page-head {
  padding-block: clamp(46px, 6vw, 82px) clamp(28px, 4vw, 46px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(100% 120% at 90% -30%, #e9edea 0%, transparent 60%);
}
.page-head h1 { max-width: 22ch; }
.page-head .lede { margin-top: 16px; }

.anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 22px;
}
.anchor-nav a {
  font-size: 13px;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--white);
  color: #35505f;
}
.anchor-nav a:hover { border-color: var(--copper); color: var(--copper); }

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--ink);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 100;
}
.skip-link:focus { left: 12px; }

/* --------------------------------------------------- language switcher --- */
html.i18n-loading body { opacity: 0; }
body { transition: opacity 0.18s ease; }

.lang-btn {
  border: 1px solid var(--line);
  background: var(--white);
  color: #2c4152;
  height: 36px;
  padding: 0 14px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 550;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.lang-btn:hover { border-color: var(--copper); color: var(--copper); background: var(--copper-050); }

@media (max-width: 940px) {
  .lang-btn { display: inline-flex; }
}

/* ------------------------------------------------------------ RFQ page --- */
.rfq-layout {
  display: grid;
  gap: clamp(22px, 3vw, 46px);
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  align-items: start;
}
@media (max-width: 940px) { .rfq-layout { grid-template-columns: 1fr; } }

.rfq-step {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(20px, 2.6vw, 30px);
  margin-bottom: 16px;
}
.rfq-step__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.rfq-step__head span {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--copper);
}
.rfq-step__head h2 { font-size: 1.08rem; }

.chip-group { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; width: 0; height: 0; }
.chip span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.18s ease;
}
.chip input:checked + span {
  border-color: var(--copper);
  background: var(--copper-050);
  color: var(--copper);
  font-weight: 550;
}
.chip input:focus-visible + span { box-shadow: 0 0 0 3px rgba(185, 96, 28, 0.18); }

.dropzone {
  border: 1.5px dashed rgba(10, 26, 38, 0.24);
  border-radius: var(--radius);
  padding: 26px 18px;
  text-align: center;
  background: var(--paper-2);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.dropzone:hover, .dropzone.is-over { border-color: var(--copper); background: var(--copper-050); }
.dropzone input[type="file"] { display: none; }
.dropzone b { display: block; font-size: 14.6px; margin-bottom: 4px; }
.dropzone small { color: var(--steel); font-size: 12.8px; }
.file-list { margin-top: 12px; display: grid; gap: 6px; }
.file-list li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 13.2px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
}
.file-list .rm { color: var(--copper); cursor: pointer; background: none; border: 0; font-size: 12.5px; }

.summary {
  background: var(--navy-900);
  color: #dce8f0;
  border-radius: var(--radius);
  padding: clamp(20px, 2.4vw, 26px);
  position: sticky;
  top: 88px;
}
.summary h3 { color: #fff; font-size: 1.02rem; margin-bottom: 14px; }
.summary dl { display: grid; gap: 9px; margin: 0; font-size: 13.6px; }
.summary dt { color: #7f97a8; font-family: var(--font-mono); font-size: 10.6px; letter-spacing: 0.09em; text-transform: uppercase; }
.summary dd { margin: 0; color: #eaf2f7; }
.summary__empty { color: #7f97a8; font-size: 13.4px; }
.summary__actions { display: grid; gap: 9px; margin-top: 20px; }
.summary .btn { width: 100%; justify-content: center; }
.btn--wa { --bg: #1f8f4e; }
.btn--wa:hover { --bg: #1a7a43; }
.btn--line { --bg: #06c755; }

.copy-note { font-size: 12.2px; color: #8fa6b6; margin-top: 10px; }

.required { color: var(--copper); }

/* --------------------------------------------------- RFQ promise strip --- */
.promise-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.promise-row__label {
  font-family: var(--font-mono);
  font-size: 10.6px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--copper);
  margin-right: 6px;
}

/* ------------------------------------------------------------------ FAQ --- */
.faq {
  display: grid;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 34px);
  max-width: 860px;
}
.faq details {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 20px;
  transition: border-color 0.2s ease;
}
.faq details:hover { border-color: rgba(192, 101, 31, 0.35); }
.faq summary {
  cursor: pointer;
  font-weight: 550;
  color: var(--ink);
  font-size: 15.4px;
  line-height: 1.5;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  color: var(--copper);
  font-family: var(--font-mono);
  font-size: 17px;
  flex: none;
}
.faq details[open] summary::after { content: "\2212"; }
.faq p {
  margin-top: 12px;
  color: var(--steel);
  font-size: 14.6px;
  line-height: 1.78;
  max-width: 72ch;
}