/* ==========================================================================
   leston — design system
   Ink/graphite + warm paper + copper accent. Outfit (display) · IBM Plex Sans / Noto Sans SC (text) · IBM Plex Mono (part numbers)
   ========================================================================== */
:root {
  --ink: #0e1012; --ink-2: #15181b; --ink-3: #1d2125; --ink-rule: #2a2f34; --ink-text: #e9e6df; --ink-mute: #9aa0a6;
  --paper: #f3f0e9; --paper-2: #ebe6dc; --paper-3: #e2dcd0; --card: #fbfaf7;
  --text: #17191b; --mute: #5b6067; --rule: #d6d0c4; --rule-2: #c4bdb0; --steel: #8a9097;
  --copper: #c97f32; --copper-hi: #e0994a; --copper-ink: #9a5a1c; --copper-wash: #f3e3cf;
  --ok: #2f7a4f; --ok-wash: #e2efe5; --warn: #8a5a12; --err: #b23b2e; --err-wash: #f8e4e0;
  --f-display: 'Outfit', 'Noto Sans SC', system-ui, sans-serif;
  --f-text: 'IBM Plex Sans', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --wrap: 1320px; --gut: 32px; --r: 3px; --r-lg: 6px;
  --shadow: 0 1px 0 rgba(20,20,20,.04), 0 8px 24px -12px rgba(20,20,20,.18);
  --ease: cubic-bezier(.2,.7,.2,1);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 96px; }
body { margin: 0; font-family: var(--f-text); font-size: 15px; line-height: 1.6; color: var(--text); background: var(--paper); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
html[data-lang="en"] [data-lang="zh"], html[data-lang="zh"] [data-lang="en"] { display: none !important; }
img { max-width: 100%; display: block; }
[hidden] { display: none !important; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4 { margin: 0; font-family: var(--f-display); font-weight: 600; letter-spacing: -.01em; line-height: 1.2; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
.mono { font-family: var(--f-mono); font-feature-settings: 'zero' 1; letter-spacing: 0; }
.sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }
.i { width: 18px; height: 18px; flex: none; }
:focus-visible { outline: 2px solid var(--copper); outline-offset: 2px; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--copper); color: var(--ink); padding: 10px 14px; font-weight: 600; border-radius: var(--r); }
.skip:focus { top: 8px; }
::selection { background: var(--copper); color: var(--ink); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 20px; border: 1px solid transparent; border-radius: var(--r); font-weight: 600; font-size: 14px; letter-spacing: .01em; cursor: pointer; white-space: nowrap; transition: background .18s, border-color .18s, color .18s, transform .18s; }
.btn:active { transform: translateY(1px); }
.btn--copper { background: var(--copper); color: #16110b; }
.btn--copper:hover { background: var(--copper-hi); }
.btn--ink { background: var(--ink); color: var(--ink-text); }
.btn--ink:hover { background: var(--ink-3); }
.btn--line { border-color: var(--rule-2); background: transparent; color: var(--text); }
.btn--line:hover { border-color: var(--text); }
.btn--ghost-d { border-color: rgba(233,230,223,.28); color: var(--ink-text); background: transparent; }
.btn--ghost-d:hover { border-color: var(--ink-text); }
.btn--lg { height: 52px; padding: 0 26px; font-size: 15px; }
.btn--sm { height: 36px; padding: 0 14px; font-size: 13px; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.link-arrow { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--copper-ink); border-bottom: 1px solid transparent; transition: border-color .18s, gap .18s; }
.link-arrow:hover { border-color: currentColor; gap: 10px; }

/* ---------- utility bar + header ---------- */
.util { background: #08090a; color: var(--ink-mute); font-size: 12px; border-bottom: 1px solid #1a1d20; }
.util__in { display: flex; align-items: center; gap: 24px; height: 34px; }
.util__tag { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.util__dot { width: 6px; height: 6px; background: var(--copper); border-radius: 50%; flex: none; }
.util__stock { white-space: nowrap; }
.lang { display: inline-flex; border: 1px solid #2b3035; border-radius: var(--r); overflow: hidden; }
.lang button { background: none; border: 0; padding: 2px 10px; font-size: 12px; color: var(--ink-mute); cursor: pointer; line-height: 20px; }
.lang button[aria-pressed="true"] { background: var(--ink-text); color: var(--ink); font-weight: 600; }
.lang button:not([aria-pressed="true"]):hover { color: var(--ink-text); }

.hdr { position: sticky; top: 0; z-index: 50; background: rgba(14,16,18,.96); backdrop-filter: saturate(1.2) blur(10px); color: var(--ink-text); border-bottom: 1px solid var(--ink-rule); transition: box-shadow .2s; }
.hdr.is-scrolled { box-shadow: 0 10px 30px -18px rgba(0,0,0,.6); }
.hdr__in { display: flex; align-items: center; gap: 28px; height: 68px; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--ink-text); flex: none; }
.logo__mark { width: 28px; height: 28px; }
.logo__word { font-family: var(--f-display); font-weight: 500; font-size: 27px; letter-spacing: -.035em; line-height: 1; padding-bottom: 3px; }
.logo--lg .logo__mark { width: 34px; height: 34px; } .logo--lg .logo__word { font-size: 34px; }
.nav { display: flex; align-items: center; gap: 4px; flex: 1; }
.nav__a { position: relative; padding: 0 14px; height: 68px; display: inline-flex; align-items: center; font-size: 14px; color: #c9c6bf; transition: color .18s; }
.nav__a::after { content: ''; position: absolute; left: 14px; right: 14px; bottom: -1px; height: 2px; background: var(--copper); transform: scaleX(0); transform-origin: left; transition: transform .25s var(--ease); }
.nav__a:hover { color: #fff; }
.nav__a:hover::after { transform: scaleX(.4); }
.nav__a.is-active { color: #fff; }
.nav__a.is-active::after { transform: scaleX(1); }
.nav__search { display: none; }
.hdr__search { position: relative; display: flex; align-items: center; width: 260px; height: 38px; background: var(--ink-3); border: 1px solid var(--ink-rule); border-radius: var(--r); padding: 0 10px 0 12px; gap: 8px; color: var(--ink-mute); transition: border-color .18s, background .18s; }
.hdr__search:focus-within { border-color: var(--copper); background: #121518; }
.hdr__search input { flex: 1; min-width: 0; background: none; border: 0; outline: 0; color: var(--ink-text); font-family: var(--f-mono); font-size: 13px; }
.hdr__search input::placeholder { color: #737a81; font-family: var(--f-text); }
.hdr__search kbd { font-family: var(--f-mono); font-size: 11px; border: 1px solid var(--ink-rule); border-radius: 3px; padding: 0 5px; color: #737a81; }
.hdr__rfq { display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 12px 0 14px; border: 1px solid var(--ink-rule); border-radius: var(--r); font-size: 14px; font-weight: 500; color: var(--ink-text); transition: border-color .18s, background .18s; flex: none; }
.hdr__rfq:hover, .hdr__rfq.is-active { border-color: var(--copper); }
.badge { min-width: 22px; height: 22px; padding: 0 6px; border-radius: 11px; background: var(--copper); color: #16110b; font: 600 12px/22px var(--f-mono); text-align: center; transition: transform .25s var(--ease); }
.badge.is-zero { background: var(--ink-rule); color: var(--ink-mute); }
.badge.bump { transform: scale(1.25); }
.burger { display: none; width: 42px; height: 42px; border: 1px solid var(--ink-rule); background: none; border-radius: var(--r); cursor: pointer; position: relative; flex: none; }
.burger span { position: absolute; left: 11px; right: 11px; height: 1.5px; background: var(--ink-text); transition: transform .25s var(--ease), top .25s var(--ease); }
.burger span:first-child { top: 16px; } .burger span:last-child { top: 24px; }
.nav-open .burger span:first-child { top: 20px; transform: rotate(45deg); }
.nav-open .burger span:last-child { top: 20px; transform: rotate(-45deg); }

/* ---------- section scaffolding ---------- */
main { display: block; }
.sec { padding: 96px 0; }
.sec--tight { padding: 64px 0; }
.sec--paper2 { background: var(--paper-2); }
.sec--ink { background: var(--ink); color: var(--ink-text); }
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 40px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font: 500 12px/1 var(--f-mono); letter-spacing: .12em; color: var(--copper-ink); margin-bottom: 14px; }
.eyebrow::before { content: ''; width: 18px; height: 1px; background: currentColor; }
.sec--ink .eyebrow, .hero .eyebrow { color: var(--copper-hi); }
.h2 { font-size: clamp(28px, 3.2vw, 40px); font-weight: 600; letter-spacing: -.02em; }
.h2 small { display: block; font: 400 15px/1.5 var(--f-text); color: var(--mute); letter-spacing: 0; margin-top: 10px; max-width: 560px; }
.sec--ink .h2 small { color: var(--ink-mute); }
.lede { font-size: 17px; color: var(--mute); max-width: 640px; }

/* ---------- hero ---------- */
.hero { position: relative; background: var(--ink); color: var(--ink-text); overflow: hidden; isolation: isolate; }
.hero__grid { position: absolute; inset: 0; z-index: -1; color: #1f2327; opacity: .9;
  background-image: linear-gradient(currentColor 1px, transparent 1px), linear-gradient(90deg, currentColor 1px, transparent 1px); background-size: 64px 64px; background-position: -1px -1px;
  -webkit-mask-image: radial-gradient(ellipse 80% 90% at 70% 40%, #000 30%, transparent 75%); mask-image: radial-gradient(ellipse 80% 90% at 70% 40%, #000 30%, transparent 75%); }
.hero::after { content: ''; position: absolute; z-index: -1; right: -10%; top: -20%; width: 70%; height: 140%; background: radial-gradient(closest-side, rgba(201,127,50,.13), transparent 70%); }
.hero__in { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 48px; align-items: center; min-height: 620px; padding-top: 72px; padding-bottom: 72px; }
.hero h1 { font-size: clamp(34px, 4.2vw, 56px); line-height: 1.1; letter-spacing: -.03em; font-weight: 600; }
html[data-lang="zh"] .hero h1 { letter-spacing: -.01em; line-height: 1.15; }
.hero h1 em { font-style: normal; color: var(--copper-hi); }
.hero__sub { margin-top: 22px; font-size: 17px; color: #b5b9bd; max-width: 540px; }
.qsearch { margin-top: 36px; max-width: 620px; }
.qsearch__tabs { display: flex; gap: 2px; }
.qsearch__tab { background: transparent; border: 1px solid transparent; border-bottom: 0; color: var(--ink-mute); padding: 8px 16px; font-size: 13px; cursor: pointer; border-radius: var(--r) var(--r) 0 0; }
.qsearch__tab[aria-selected="true"] { background: var(--paper); color: var(--text); font-weight: 600; }
.qsearch__tab:not([aria-selected="true"]):hover { color: var(--ink-text); }
.qsearch__box { display: flex; align-items: stretch; background: var(--paper); border-radius: 0 var(--r-lg) var(--r-lg) var(--r-lg); padding: 6px; box-shadow: 0 30px 60px -30px rgba(0,0,0,.8), 0 0 0 1px rgba(255,255,255,.04); }
.qsearch__box:focus-within { box-shadow: 0 30px 60px -30px rgba(0,0,0,.8), 0 0 0 2px var(--copper); }
.qsearch__icon { width: 52px; display: grid; place-items: center; color: var(--steel); }
.qsearch__icon .i { width: 22px; height: 22px; }
.qsearch input { flex: 1; min-width: 0; border: 0; outline: 0; background: none; font-family: var(--f-mono); font-size: 19px; color: var(--text); letter-spacing: .01em; }
.qsearch input::placeholder { color: #8f949a; font-size: 16px; }
.qsearch .btn { height: 54px; padding: 0 30px; font-size: 15px; }
.qsearch__hint { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 16px; font-size: 13px; color: var(--ink-mute); }
.chip-d { font-family: var(--f-mono); font-size: 12.5px; color: #d8d4cc; border: 1px solid #30363b; border-radius: 20px; padding: 3px 11px; transition: border-color .18s, color .18s, background .18s; }
.chip-d:hover { border-color: var(--copper); color: #fff; background: rgba(201,127,50,.1); }
.hero__facts { display: grid; grid-template-columns: repeat(4, auto); justify-content: start; gap: 0; margin-top: 48px; border-top: 1px solid var(--ink-rule); }
.hero__facts div { padding: 18px 32px 0 0; margin-right: 32px; border-right: 1px solid var(--ink-rule); }
.hero__facts div:last-child { border-right: 0; margin-right: 0; }
.hero__facts b { display: block; font: 500 26px/1 var(--f-display); color: #fff; letter-spacing: -.02em; }
.hero__facts span { font-size: 12.5px; color: var(--ink-mute); }
/* hero visual: studio parts with spec callouts */
.hero__vis { position: relative; aspect-ratio: 1 / 1; max-width: 600px; justify-self: end; width: 100%; }
.hero__ring { position: absolute; inset: 6%; border-radius: 50%; border: 1px dashed #2c3237; }
.hero__ring::before { content: ''; position: absolute; inset: 14%; border-radius: 50%; border: 1px solid #22272b; }
.hero__img { position: absolute; mix-blend-mode: lighten; filter: contrast(1.05); }
.hero__img--a { width: 64%; left: 4%; top: 6%; }
.hero__img--b { width: 50%; right: 0; bottom: 4%; }
.hero__img--c { width: 34%; right: 6%; top: 4%; opacity: .9; }
.callout { position: absolute; display: flex; flex-direction: column; gap: 2px; padding: 10px 12px; background: rgba(14,16,18,.82); border: 1px solid #2e3439; border-left: 2px solid var(--copper); backdrop-filter: blur(6px); font-size: 12px; color: var(--ink-mute); min-width: 170px; }
.callout b { font: 500 13px/1.3 var(--f-mono); color: #fff; }
.callout i { font-style: normal; color: #6fcf97; font-size: 11.5px; }
.callout--a { left: 0; bottom: 30%; }
.callout--b { right: 2%; top: 44%; }
.callout::before { content: ''; position: absolute; width: 36px; height: 1px; background: #4a5056; top: 50%; }
.callout--a::before { right: -36px; } .callout--b::before { left: -36px; }

/* ---------- machine cards ---------- */
.mgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.mcard { position: relative; display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--rule); border-radius: var(--r-lg); overflow: hidden; transition: border-color .2s, transform .3s var(--ease), box-shadow .3s; }
.mcard:hover { border-color: var(--text); transform: translateY(-3px); box-shadow: var(--shadow); }
.mcard__media { aspect-ratio: 4 / 3; overflow: hidden; background: #fff; border-bottom: 1px solid var(--rule); }
.mcard__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.mcard__media--white img { object-fit: contain; padding: 14px; }
.mcard:hover .mcard__media img { transform: scale(1.04); }
.mcard__body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.mcard__code { font: 500 12px/1 var(--f-mono); color: var(--copper-ink); letter-spacing: .1em; }
.mcard h3 { font-size: 19px; }
.mcard__en { font-size: 13px; color: var(--mute); }
.mcard__models { font: 12px/1.5 var(--f-mono); color: var(--mute); margin-top: 6px; }
.mcard__foot { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--rule); font-size: 13px; }
.mcard__foot span:first-child { color: var(--mute); }
.mcard__foot span:last-child { font-weight: 600; display: inline-flex; gap: 6px; transition: gap .2s; }
.mcard:hover .mcard__foot span:last-child { gap: 10px; color: var(--copper-ink); }
.mcard a.mcard__link::after { content: ''; position: absolute; inset: 0; }

/* ---------- category grid ---------- */
.cgrid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--rule-2); border-left: 1px solid var(--rule-2); }
.ccell { position: relative; display: flex; flex-direction: column; min-height: 168px; padding: 22px 22px 20px; border-right: 1px solid var(--rule-2); border-bottom: 1px solid var(--rule-2); transition: background .2s; }
.ccell:hover { background: var(--card); }
.ccell__code { font: 500 30px/1 var(--f-mono); letter-spacing: -.02em; color: var(--text); transition: color .2s; }
.ccell:hover .ccell__code { color: var(--copper-ink); }
.ccell__n { position: absolute; top: 24px; right: 22px; font: 12px var(--f-mono); color: var(--mute); }
.ccell h3 { margin-top: auto; font-size: 16px; font-family: var(--f-text); font-weight: 600; }
.ccell p { font-size: 12.5px; color: var(--mute); margin-top: 4px; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ccell--cta { background: var(--ink); color: var(--ink-text); border-color: var(--ink); justify-content: space-between; }
.ccell--cta:hover { background: var(--ink-3); }
.ccell--cta h3 { color: #fff; margin-top: 0; font-family: var(--f-display); font-size: 20px; }
.ccell--cta p { color: var(--ink-mute); -webkit-line-clamp: 3; }
.ccell--cta .link-arrow { color: var(--copper-hi); }

/* ---------- product cards ---------- */
.pgrid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.pc { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--rule); border-radius: var(--r-lg); overflow: hidden; transition: border-color .2s, box-shadow .3s; }
.pc:hover { border-color: var(--rule-2); box-shadow: var(--shadow); }
.tile { position: relative; display: block; aspect-ratio: 4 / 3; overflow: hidden; background: #050505; }
.tile img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.tile--contain img, .tile img.m-contain { object-fit: contain; padding: 6%; }
.tile--light { background: #fff; }
.tile--light img { object-fit: contain; padding: 8%; }
.tile--photo { background: #d9d6d0; }
.pc:hover .tile img { transform: scale(1.045); }
.ph { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px; background: linear-gradient(160deg, #1a1e22, #0e1012); color: #262b30; }
.ph__grid { position: absolute; inset: 0; width: 100%; height: 100%; }
.ph__code { position: relative; font: 500 34px/1 var(--f-mono); color: #4b5258; letter-spacing: -.02em; }
.ph__note { position: relative; font-size: 11.5px; color: #6c737a; letter-spacing: .08em; }
.pc__body { padding: 16px 18px 4px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.pc__meta { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.code-tag { font: 500 11px/1 var(--f-mono); letter-spacing: .08em; padding: 4px 6px; border: 1px solid var(--rule-2); border-radius: 2px; color: var(--mute); }
.stock { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500; white-space: nowrap; }
.stock::before { content: ''; width: 7px; height: 7px; border-radius: 50%; }
.stock--sh { color: var(--ok); } .stock--sh::before { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-wash); }
.stock--order { color: var(--mute); } .stock--order::before { background: transparent; border: 1.5px solid var(--steel); }
.stock--quote { color: var(--mute); } .stock--quote::before { background: transparent; border: 1.5px solid var(--steel); }
.pc__name { font: 600 16px/1.35 var(--f-text); margin-top: 4px; }
.pc__name a:hover { color: var(--copper-ink); }
.pc__name a::after { content: none; }
.pc__pn { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.pc__pn .mono { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pc__pnl { font-size: 11px; color: var(--mute); letter-spacing: .04em; }
.pc__pn .mono { font-size: 14.5px; font-weight: 500; color: var(--text); }
.pc__fits { font-size: 12.5px; color: var(--mute); line-height: 1.45; }
.pc__fits span { color: var(--steel); }
.pc__foot { padding: 12px 18px 18px; }
.btn-add { width: 100%; display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 40px; border: 1px solid var(--text); border-radius: var(--r); background: transparent; font-size: 13.5px; font-weight: 600; cursor: pointer; transition: background .18s, color .18s, border-color .18s; }
.btn-add:hover { background: var(--text); color: var(--card); }
.btn-add .i { width: 15px; height: 15px; }
.btn-add.is-in { border-color: var(--copper); background: var(--copper-wash); color: var(--copper-ink); }
.btn-add.is-in:hover { background: var(--copper); color: #16110b; }
.btn-add__n { font-family: var(--f-mono); font-size: 12px; opacity: .8; }

/* ---------- featured set band ---------- */
.setband { display: grid; grid-template-columns: 1fr 1.25fr; background: var(--ink); color: var(--ink-text); border-radius: var(--r-lg); overflow: hidden; }
.setband__vis { position: relative; background: #000; min-height: 420px; }
.setband__vis img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .95; }
.setband__vis::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 60%, var(--ink)); }
.setband__tag { position: absolute; left: 24px; top: 24px; z-index: 1; font: 500 12px var(--f-mono); letter-spacing: .1em; background: var(--copper); color: #16110b; padding: 6px 10px; border-radius: 2px; }
.setband__body { padding: 44px 44px 40px; display: flex; flex-direction: column; }
.setband h3 { font-size: 30px; letter-spacing: -.02em; }
.setband h3 .mono { color: var(--copper-hi); font-weight: 500; }
.setband__sub { color: var(--ink-mute); margin-top: 10px; font-size: 14.5px; }
.setlist { margin: 26px 0 28px; border-top: 1px solid var(--ink-rule); }
.setlist li { display: grid; grid-template-columns: 150px 1fr auto; gap: 16px; align-items: center; padding: 11px 0; border-bottom: 1px solid var(--ink-rule); font-size: 14px; }
.setlist a:hover .setlist__name { color: var(--copper-hi); }
.setlist .mono { color: #fff; font-size: 13.5px; }
.setlist__name { color: #cfccc5; transition: color .18s; }
.setlist .stock--sh { color: #6fcf97; } .setlist .stock--sh::before { background: #6fcf97; box-shadow: 0 0 0 3px rgba(111,207,151,.15); }
.setband__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: auto; }

/* ---------- steps / quality ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; counter-reset: s; border-top: 1px solid var(--ink-rule); }
.step { padding: 32px 32px 8px 0; border-right: 1px solid var(--ink-rule); margin-right: 32px; }
.step:last-child { border-right: 0; margin-right: 0; }
.step__n { font: 500 13px var(--f-mono); color: var(--copper-hi); letter-spacing: .1em; }
.step h3 { font-size: 22px; margin: 14px 0 10px; color: #fff; }
.step p { color: var(--ink-mute); font-size: 14.5px; max-width: 340px; }
.step__ex { display: inline-block; margin-top: 18px; font: 13px var(--f-mono); color: #d8d4cc; border-bottom: 1px dashed #4a5056; }
.qstrip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--rule-2); border-radius: var(--r-lg); background: var(--card); }
.q { padding: 28px 26px; border-right: 1px solid var(--rule); }
.q:last-child { border-right: 0; }
.q__k { font: 500 34px/1 var(--f-display); letter-spacing: -.03em; color: var(--text); display: flex; align-items: baseline; gap: 6px; }
.q__k small { font: 500 13px var(--f-text); color: var(--mute); letter-spacing: 0; }
.q__ico { width: 34px; height: 34px; color: var(--copper); }
.q h3 { font: 600 15px/1.4 var(--f-text); margin-top: 14px; }
.q p { font-size: 13px; color: var(--mute); margin-top: 6px; }

/* CTA band */
.cta { position: relative; overflow: hidden; background: var(--ink); color: var(--ink-text); border-radius: var(--r-lg); padding: 56px; display: grid; grid-template-columns: 1.3fr auto; gap: 40px; align-items: center; isolation: isolate; }
.cta::before { content: ''; position: absolute; inset: 0; z-index: -1; background: url(../assets/part-sprocket.jpg) right -60px center / auto 150% no-repeat; opacity: .35; mix-blend-mode: lighten; }
.cta::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, var(--ink) 45%, rgba(14,16,18,.6)); }
.cta h2 { font-size: clamp(26px, 3vw, 38px); letter-spacing: -.02em; }
.cta p { color: var(--ink-mute); margin-top: 12px; max-width: 560px; }
.cta__actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- page head (inner pages) ---------- */
.phead { background: var(--ink); color: var(--ink-text); position: relative; overflow: hidden; isolation: isolate; }
.phead .hero__grid { -webkit-mask-image: linear-gradient(90deg, transparent, #000 60%); mask-image: linear-gradient(90deg, transparent, #000 60%); }
.phead__in { padding-top: 44px; padding-bottom: 40px; }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; font-size: 12.5px; color: var(--ink-mute); margin-bottom: 16px; }
.crumbs a:hover { color: #fff; }
.crumbs span[aria-hidden] { color: #4a5056; }
.phead h1 { font-size: clamp(30px, 3.4vw, 44px); letter-spacing: -.02em; }
.phead p { color: #b5b9bd; margin-top: 10px; max-width: 680px; }
.phead--plain { background: var(--paper-2); color: var(--text); border-bottom: 1px solid var(--rule); }
.phead--plain .crumbs { color: var(--mute); } .phead--plain .crumbs a:hover { color: var(--text); }

/* ---------- product listing ---------- */
.pl { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 40px; padding-top: 32px; padding-bottom: 96px; }
.filters { position: sticky; top: 92px; align-self: start; max-height: calc(100vh - 110px); overflow: auto; padding-right: 4px; }
.filters__head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 14px; border-bottom: 1px solid var(--text); }
.filters__head h2 { font: 600 13px var(--f-mono); letter-spacing: .12em; text-transform: uppercase; }
.filters__clear { background: none; border: 0; padding: 0; font-size: 12.5px; color: var(--copper-ink); cursor: pointer; }
.filters__clear:hover { text-decoration: underline; }
.fgroup { border: 0; margin: 0; padding: 18px 0; border-bottom: 1px solid var(--rule); }
.fgroup legend { float: left; width: 100%; font-size: 12px; font-weight: 600; color: var(--mute); letter-spacing: .06em; margin-bottom: 10px; padding: 0; }
.fopt { clear: both; display: flex; align-items: center; gap: 10px; padding: 6px 8px; margin: 0 -8px; border-radius: var(--r); font-size: 14px; cursor: pointer; transition: background .15s; }
.fopt:hover { background: var(--paper-2); }
.fopt input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.fopt__box { width: 16px; height: 16px; border: 1.5px solid var(--rule-2); border-radius: 2px; flex: none; display: grid; place-items: center; background: var(--card); transition: background .15s, border-color .15s; }
.fopt input[type=radio] + .fopt__box { border-radius: 50%; }
.fopt input:checked + .fopt__box { background: var(--text); border-color: var(--text); }
.fopt input:checked + .fopt__box::after { content: ''; width: 8px; height: 5px; border: solid var(--card); border-width: 0 0 1.8px 1.8px; transform: rotate(-45deg) translate(1px, -1px); }
.fopt input[type=radio]:checked + .fopt__box::after { width: 6px; height: 6px; border: 0; background: var(--card); border-radius: 50%; transform: none; }
.fopt input:focus-visible + .fopt__box { outline: 2px solid var(--copper); outline-offset: 2px; }
.fopt__code { font: 500 11.5px var(--f-mono); color: var(--mute); width: 44px; flex: none; }
.fopt__lbl { flex: 1; min-width: 0; }
.fopt__n { font: 12px var(--f-mono); color: var(--steel); }
.fopt.is-empty { opacity: .45; }
.switch { display: flex; align-items: center; justify-content: space-between; gap: 12px; cursor: pointer; font-size: 14px; clear: both; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch__t { width: 38px; height: 22px; border-radius: 11px; background: var(--rule-2); position: relative; transition: background .2s; flex: none; }
.switch__t::after { content: ''; position: absolute; left: 3px; top: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: transform .2s var(--ease); box-shadow: 0 1px 2px rgba(0,0,0,.2); }
.switch input:checked + .switch__t { background: var(--ok); }
.switch input:checked + .switch__t::after { transform: translateX(16px); }
.switch input:focus-visible + .switch__t { outline: 2px solid var(--copper); outline-offset: 2px; }

.plbar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; padding-bottom: 16px; border-bottom: 1px solid var(--rule); margin-bottom: 20px; }
.plsearch { flex: 1 1 360px; display: flex; align-items: center; gap: 10px; height: 46px; padding: 0 6px 0 14px; background: var(--card); border: 1px solid var(--rule-2); border-radius: var(--r); transition: border-color .18s, box-shadow .18s; }
.plsearch:focus-within { border-color: var(--text); box-shadow: 0 0 0 3px rgba(201,127,50,.18); }
.plsearch .i { color: var(--steel); }
.plsearch input { flex: 1; min-width: 0; border: 0; outline: 0; background: none; font-family: var(--f-mono); font-size: 15px; }
.plsearch input::placeholder { font-family: var(--f-text); font-size: 14px; color: #8f949a; }
.plsearch__x { width: 30px; height: 30px; border: 0; background: none; cursor: pointer; color: var(--steel); border-radius: var(--r); display: none; }
.plsearch__x:hover { background: var(--paper-2); color: var(--text); }
.plsearch.has-q .plsearch__x { display: grid; place-items: center; }
.plsearch .btn { height: 34px; }
.plcount { font-size: 13.5px; color: var(--mute); }
.plcount b { color: var(--text); font-family: var(--f-mono); font-weight: 600; }
.plctl { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.select { position: relative; }
.select select { appearance: none; height: 36px; padding: 0 32px 0 12px; border: 1px solid var(--rule-2); border-radius: var(--r); background: var(--card); font-size: 13px; cursor: pointer; }
.select::after { content: ''; position: absolute; right: 12px; top: 50%; width: 6px; height: 6px; border: solid var(--mute); border-width: 0 1.5px 1.5px 0; transform: translateY(-70%) rotate(45deg); pointer-events: none; }
.vtoggle { display: inline-flex; border: 1px solid var(--rule-2); border-radius: var(--r); overflow: hidden; }
.vtoggle button { width: 36px; height: 34px; border: 0; background: var(--card); cursor: pointer; display: grid; place-items: center; color: var(--steel); }
.vtoggle button[aria-pressed="true"] { background: var(--text); color: var(--card); }
.vtoggle .i { width: 16px; height: 16px; }
.btn-filters { display: none; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; width: 100%; }
.chips:empty { display: none; }
.chip { display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 6px 0 10px; border-radius: 14px; background: var(--paper-3); font-size: 12.5px; border: 0; cursor: pointer; }
.chip:hover { background: var(--rule-2); }
.chip .x { width: 16px; height: 16px; border-radius: 50%; display: grid; place-items: center; font-size: 13px; line-height: 1; color: var(--mute); }
.pgrid.pgrid--list { grid-template-columns: 1fr; gap: 0; border: 1px solid var(--rule); border-radius: var(--r-lg); background: var(--card); overflow: hidden; }
.ptable { width: 100%; border-collapse: collapse; font-size: 14px; }
.ptable th { text-align: left; font: 600 11.5px var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); padding: 12px 14px; border-bottom: 1px solid var(--rule-2); background: var(--paper-2); white-space: nowrap; }
.ptable td { padding: 10px 14px; border-bottom: 1px solid var(--rule); vertical-align: middle; }
.ptable tr:last-child td { border-bottom: 0; }
.ptable tr:hover td { background: #fffdf8; }
.ptable__thumb { width: 64px; aspect-ratio: 4/3; border-radius: 2px; flex: none; }
.ptable__thumb .ph__code { font-size: 14px; } .ptable__thumb .ph__note { display: none; }
.ptable__part { display: flex; align-items: center; gap: 14px; }
.ptable__part a { font-weight: 600; }
.ptable__part a:hover { color: var(--copper-ink); }
.ptable__part small { display: block; font: 11px var(--f-mono); color: var(--mute); letter-spacing: .06em; }
.ptable .mono { font-size: 14px; font-weight: 500; }
.ptable__fits { color: var(--mute); font-size: 13px; }
.ptable .btn-add { width: auto; padding: 0 14px; height: 34px; font-size: 13px; white-space: nowrap; }
.empty { text-align: center; padding: 72px 24px; border: 1px dashed var(--rule-2); border-radius: var(--r-lg); background: var(--card); }
.empty__ico { width: 56px; height: 56px; margin: 0 auto 18px; color: var(--steel); }
.empty h3 { font-size: 22px; }
.empty p { color: var(--mute); max-width: 460px; margin: 10px auto 24px; }
.empty__q { font-family: var(--f-mono); background: var(--paper-2); padding: 2px 8px; border-radius: 2px; color: var(--text); }
.empty__actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* bulk lookup */
.lookup { background: var(--ink); color: var(--ink-text); border-radius: var(--r-lg); margin-bottom: 28px; overflow: hidden; }
.lookup--submit { padding: 22px 22px 8px; }
.lookup__intro { margin-bottom: 8px; }
.lookup__intro h2 { font-size: 17px; display: flex; align-items: center; gap: 12px; }
.lookup__intro h2 .mono { font-size: 11px; color: var(--copper-hi); border: 1px solid #3a3226; padding: 3px 6px; border-radius: 2px; letter-spacing: .08em; }

.lookup__head { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%; padding: 16px 22px; background: none; border: 0; color: inherit; cursor: pointer; text-align: left; }
.lookup__head h2 { font-size: 17px; display: flex; align-items: center; gap: 12px; }
.lookup__head h2 .mono { font-size: 11px; color: var(--copper-hi); border: 1px solid #3a3226; padding: 3px 6px; border-radius: 2px; letter-spacing: .08em; }
.lookup__head .chev { width: 10px; height: 10px; border: solid var(--ink-mute); border-width: 0 1.5px 1.5px 0; transform: rotate(45deg); transition: transform .25s; }
.lookup__head[aria-expanded="true"] .chev { transform: rotate(-135deg); }
.lookup__body { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 24px; padding: 4px 22px 22px; }
.lookup__body[hidden] { display: none; }
.lookup textarea { width: 100%; min-height: 160px; resize: vertical; background: var(--ink-3); border: 1px solid var(--ink-rule); border-radius: var(--r); color: #fff; font: 14px/1.7 var(--f-mono); padding: 12px 14px; }
.lookup textarea:focus { outline: 0; border-color: var(--copper); }
.lookup__desc { font-size: 13px; color: var(--ink-mute); margin-bottom: 10px; }
.lookup__row { display: flex; gap: 10px; margin-top: 12px; align-items: center; }
.lookup__res { border: 1px solid var(--ink-rule); border-radius: var(--r); background: var(--ink-2); min-height: 160px; padding: 6px 0; font-size: 13.5px; max-height: 300px; overflow: auto; }
.lookup__res:empty::before { content: attr(data-empty); display: block; padding: 60px 16px; text-align: center; color: #6c737a; font-size: 13px; }
.lookup__res li { display: grid; grid-template-columns: 18px 150px 1fr auto; gap: 10px; align-items: center; padding: 7px 14px; border-bottom: 1px solid #1f2327; }
.lookup__res li:last-child { border-bottom: 0; }
.lookup__res .mono { color: #fff; }
.lookup__res .ok { color: #6fcf97; } .lookup__res .no { color: var(--copper-hi); }
.lookup__res a:hover { color: var(--copper-hi); }
.lookup__res small { color: var(--ink-mute); }
.lookup__res .stock--order { color: var(--ink-mute); }
.lookup__res .stock--sh { color: #6fcf97; } .lookup__res .stock--sh::before { background: #6fcf97; box-shadow: none; }
.lookup__sum { font-size: 12.5px; color: var(--ink-mute); flex: 1; }

/* ---------- part detail ---------- */
.pd { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 56px; padding-top: 36px; padding-bottom: 72px; }
.gallery__main { position: relative; aspect-ratio: 4 / 3; border-radius: var(--r-lg); overflow: hidden; background: #000; border: 1px solid var(--rule); }
.gallery__main img { width: 100%; height: 100%; object-fit: contain; }
.gallery__main.tile--light { background: #fff; } .gallery__main.tile--photo { background: #d9d6d0; } .gallery__main.tile--photo img { object-fit: cover; }
.gallery__badge { position: absolute; left: 16px; top: 16px; font: 500 11px var(--f-mono); letter-spacing: .1em; padding: 5px 8px; background: rgba(14,16,18,.8); color: var(--ink-text); border-radius: 2px; }
.gallery__thumbs { display: flex; gap: 10px; margin-top: 12px; align-items: flex-end; }
.gallery__main img.is-detail { transform: scale(1.9); }
.gallery__thumbs button { position: relative; }
.gallery__thumbs button span { position: absolute; left: 0; right: 0; bottom: 0; padding: 2px 0; font-size: 10.5px; background: rgba(14,16,18,.75); color: var(--ink-text); text-align: center; }
.gallery__thumbs button img.is-detail { transform: scale(1.9); }
.gallery__note { margin-left: auto; font-size: 12px; color: var(--mute); align-self: center; }
.gallery__thumbs button { width: 92px; aspect-ratio: 4/3; border: 1px solid var(--rule); border-radius: var(--r); overflow: hidden; padding: 0; background: #000; cursor: pointer; opacity: .7; transition: opacity .18s, border-color .18s; }
.gallery__thumbs button.tile--light { background: #fff; } .gallery__thumbs button.tile--photo { background: #d9d6d0; }
.gallery__thumbs button.tile--light img, .gallery__thumbs button.tile--contain img { object-fit: contain; }
.gallery__thumbs button img { width: 100%; height: 100%; object-fit: cover; }
.gallery__thumbs button[aria-current="true"] { opacity: 1; border-color: var(--text); box-shadow: 0 0 0 1px var(--text); }
.gallery__thumbs button:hover { opacity: 1; }
.pd__meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.pd h1 { font-size: clamp(28px, 3vw, 38px); letter-spacing: -.02em; margin-top: 14px; }
.pd__en { color: var(--mute); margin-top: 6px; font-size: 15px; }
.pnbox { display: flex; align-items: stretch; margin-top: 24px; border: 1px solid var(--text); border-radius: var(--r); overflow: hidden; }
.pnbox__l { padding: 12px 16px; background: var(--text); color: var(--card); font: 500 11px/1.3 var(--f-mono); letter-spacing: .08em; display: flex; align-items: center; }
.pnbox__v { flex: 1; padding: 10px 16px; font: 500 24px/1.3 var(--f-mono); letter-spacing: .01em; display: flex; align-items: center; background: var(--card); min-width: 0; overflow-wrap: anywhere; }
.pnbox button { border: 0; border-left: 1px solid var(--rule-2); background: var(--card); padding: 0 16px; cursor: pointer; font-size: 13px; display: inline-flex; align-items: center; gap: 6px; color: var(--mute); white-space: nowrap; }
.pnbox button:hover { color: var(--text); background: var(--paper-2); }
.pd__ref { font-size: 12.5px; color: var(--mute); margin-top: 8px; } .pd__ref .mono { color: var(--text); }
.kv { margin-top: 26px; border-top: 1px solid var(--rule); }
.kv div { display: grid; grid-template-columns: 130px 1fr; gap: 16px; padding: 11px 0; border-bottom: 1px solid var(--rule); font-size: 14px; }
.kv dt { color: var(--mute); }
.kv dd { margin: 0; }
.kv .models { display: flex; flex-wrap: wrap; gap: 6px; }
.kv .models span { font: 12.5px var(--f-mono); padding: 2px 8px; background: var(--paper-2); border-radius: 2px; }
.buy { margin-top: 26px; padding: 22px; background: var(--card); border: 1px solid var(--rule); border-radius: var(--r-lg); }
.buy__price { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; }
.buy__price b { font: 600 17px var(--f-display); }
.buy__price p { font-size: 12.5px; color: var(--mute); max-width: 300px; text-align: right; }
.buy__row { display: flex; gap: 12px; margin-top: 18px; }
.qty { display: inline-flex; align-items: stretch; border: 1px solid var(--rule-2); border-radius: var(--r); height: 52px; background: #fff; }
.qty button { width: 44px; border: 0; background: none; cursor: pointer; font-size: 18px; color: var(--mute); }
.qty button:hover { color: var(--text); background: var(--paper-2); }
.qty input { width: 64px; border: 0; border-left: 1px solid var(--rule); border-right: 1px solid var(--rule); text-align: center; font: 500 16px var(--f-mono); -moz-appearance: textfield; background: none; }
.qty input::-webkit-outer-spin-button, .qty input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.qty input:focus { outline: 0; background: var(--copper-wash); }
.qty--sm { height: 36px; } .qty--sm button { width: 32px; font-size: 15px; } .qty--sm input { width: 52px; font-size: 14px; }
.buy__row .btn { flex: 1; }
.buy__note { font-size: 12.5px; color: var(--mute); margin-top: 12px; min-height: 1.2em; }
.buy__note b { color: var(--copper-ink); }
.assure { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 18px; border: 1px solid var(--rule); border-radius: var(--r-lg); }
.assure div { padding: 16px; border-right: 1px solid var(--rule); font-size: 12.5px; color: var(--mute); }
.assure div:last-child { border-right: 0; }
.assure b { display: block; font-size: 13px; color: var(--text); margin-bottom: 4px; }
.verify { display: flex; gap: 12px; margin-top: 18px; padding: 14px 16px; background: var(--copper-wash); border-radius: var(--r); font-size: 13px; color: #5a3a14; }
.verify .i { color: var(--copper-ink); margin-top: 2px; }
.notfound { padding: 96px 0; text-align: center; }

/* ---------- RFQ ---------- */
.rfq { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 40px; padding-top: 36px; padding-bottom: 96px; align-items: start; }
.panel { background: var(--card); border: 1px solid var(--rule); border-radius: var(--r-lg); }
.panel__head { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 22px; border-bottom: 1px solid var(--rule); }
.panel__head h2 { font-size: 18px; display: flex; align-items: center; gap: 10px; }
.panel__head h2 .mono { font-size: 12px; color: var(--mute); font-weight: 400; }
.panel__body { padding: 22px; }
.lines li { display: grid; grid-template-columns: 72px minmax(0, 1fr) auto auto; gap: 16px; align-items: center; padding: 14px 22px; border-bottom: 1px solid var(--rule); }
.lines .ptable__thumb { width: 72px; }
.lines__name { font-weight: 600; font-size: 14.5px; }
.lines__name a:hover { color: var(--copper-ink); }
.lines__pn { font: 500 13px var(--f-mono); }
.lines__sub { font-size: 12px; color: var(--mute); }
.lines__rm { width: 34px; height: 34px; border: 0; background: none; border-radius: var(--r); cursor: pointer; color: var(--steel); display: grid; place-items: center; }
.lines__rm:hover { color: var(--err); background: var(--err-wash); }
.lines__custom { width: 72px; aspect-ratio: 4/3; border: 1px dashed var(--rule-2); border-radius: 2px; display: grid; place-items: center; font: 500 11px var(--f-mono); color: var(--mute); text-align: center; line-height: 1.2; }
.addline { padding: 18px 22px 22px; background: var(--paper); border-radius: 0 0 var(--r-lg) var(--r-lg); }
.addline h3 { font: 600 14px var(--f-text); }
.addline > p { font-size: 12.5px; color: var(--mute); margin: 2px 0 12px; }
.addline__row { display: grid; grid-template-columns: 1.1fr 1.3fr 90px auto; gap: 10px; align-items: end; }
.rfq__empty { padding: 48px 22px; text-align: center; border-bottom: 1px solid var(--rule); }
.rfq__empty h3 { font-size: 19px; }
.rfq__empty p { color: var(--mute); font-size: 14px; max-width: 400px; margin: 8px auto 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label, .field .lbl { font-size: 13px; font-weight: 600; display: flex; justify-content: space-between; gap: 8px; }
.field label .opt, .field label .req { font-weight: 400; color: var(--mute); font-size: 12px; }
.field label .req { color: var(--copper-ink); }
.input, .field select, .field textarea { width: 100%; height: 44px; padding: 0 12px; border: 1px solid var(--rule-2); border-radius: var(--r); background: #fff; font-size: 14px; transition: border-color .18s, box-shadow .18s; }
.field textarea { height: auto; min-height: 104px; padding: 10px 12px; resize: vertical; line-height: 1.55; }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--mute) 50%), linear-gradient(135deg, var(--mute) 50%, transparent 50%); background-position: calc(100% - 17px) 19px, calc(100% - 12px) 19px; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 32px; }
.input:hover, .field select:hover, .field textarea:hover { border-color: var(--steel); }
.input:focus, .field select:focus, .field textarea:focus { outline: 0; border-color: var(--text); box-shadow: 0 0 0 3px rgba(201,127,50,.2); }
.input.mono { font-family: var(--f-mono); }
.field.is-err .input, .field.is-err select, .field.is-err textarea { border-color: var(--err); }
.field__err { font-size: 12px; color: var(--err); display: none; }
.field.is-err .field__err { display: block; }
.fgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 18px; }
.fgrid .full { grid-column: 1 / -1; }
.form-hint { font-size: 12px; color: var(--mute); }
.form-err { display: none; padding: 10px 14px; background: var(--err-wash); color: var(--err); border-radius: var(--r); font-size: 13px; margin-bottom: 16px; }
.form-err.is-on { display: block; }
.rfq__side { position: sticky; top: 92px; display: flex; flex-direction: column; gap: 20px; }
.howq { padding: 22px; background: var(--ink); color: var(--ink-text); border-radius: var(--r-lg); }
.howq h3 { font-size: 16px; margin-bottom: 14px; }
.howq ol { margin: 0; padding: 0; list-style: none; counter-reset: h; }
.howq li { counter-increment: h; display: grid; grid-template-columns: 28px 1fr; font-size: 13.5px; color: #c9c6bf; padding: 8px 0; border-top: 1px solid var(--ink-rule); }
.howq li::before { content: '0' counter(h); font: 500 12px/1.9 var(--f-mono); color: var(--copper-hi); }
.success { text-align: center; padding: 56px 28px; }
.success__ico { width: 64px; height: 64px; margin: 0 auto 20px; border-radius: 50%; background: var(--ok-wash); color: var(--ok); display: grid; place-items: center; }
.success__ico .i { width: 30px; height: 30px; }
.success h2 { font-size: 28px; }
.success p { color: var(--mute); max-width: 460px; margin: 12px auto 0; }
.success .mono { color: var(--text); font-weight: 600; }
.success__proto { display: inline-block; margin-top: 18px !important; font-size: 12.5px; padding: 6px 12px; background: var(--paper-2); border-radius: 2px; }
.success__list { margin: 24px auto 0; max-width: 440px; text-align: left; border-top: 1px solid var(--rule); font-size: 13.5px; }
.success__list li { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--rule); }
.success__actions { margin-top: 28px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- prose / guide / about ---------- */
.doc { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 64px; padding-top: 56px; padding-bottom: 96px; }
.toc { position: sticky; top: 100px; align-self: start; font-size: 13.5px; }
.toc h2 { font: 600 11.5px var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--mute); margin-bottom: 12px; }
.toc a { display: block; padding: 7px 0 7px 14px; border-left: 1px solid var(--rule-2); color: var(--mute); transition: color .18s, border-color .18s; }
.toc a:hover, .toc a.is-on { color: var(--text); border-color: var(--copper); }
.prose { max-width: 760px; }
.prose > section { padding-bottom: 56px; margin-bottom: 56px; border-bottom: 1px solid var(--rule); }
.prose > section:last-child { border-bottom: 0; margin-bottom: 0; }
.prose h2 { font-size: 30px; letter-spacing: -.02em; margin-bottom: 18px; }
.prose h2 .mono { display: block; font-size: 12px; color: var(--copper-ink); letter-spacing: .12em; margin-bottom: 10px; font-weight: 500; }
.prose h3 { font-size: 18px; margin: 28px 0 10px; }
.prose p { margin: 0 0 14px; font-size: 15.5px; line-height: 1.8; color: #2a2d30; }
.prose p.lede { font-size: 17px; color: var(--mute); }
.prose ul.dash li { position: relative; padding-left: 18px; margin-bottom: 8px; font-size: 15px; line-height: 1.7; }
.prose ul.dash li::before { content: ''; position: absolute; left: 0; top: .85em; width: 8px; height: 1px; background: var(--copper); }
.ucdiagram { margin: 28px 0; padding: 28px; background: var(--ink); border-radius: var(--r-lg); color: var(--ink-text); }
.ucdiagram svg { width: 100%; height: auto; display: block; }
.ucdiagram figcaption { font-size: 12.5px; color: var(--ink-mute); margin-top: 14px; }
.ucparts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 22px 0; }
.ucpart { display: grid; grid-template-columns: 96px 1fr; gap: 14px; align-items: center; padding: 10px; background: var(--card); border: 1px solid var(--rule); border-radius: var(--r-lg); transition: border-color .18s; }
.ucpart:hover { border-color: var(--text); }
.ucpart .tile { border-radius: var(--r); }
.ucpart b { display: flex; align-items: center; gap: 8px; font-size: 15px; }
.ucpart b .n { font: 500 11px var(--f-mono); color: var(--copper-ink); }
.ucpart span { display: block; font-size: 12.5px; color: var(--mute); line-height: 1.5; margin-top: 3px; }
.callbox { display: grid; grid-template-columns: auto 1fr; gap: 16px; padding: 20px; border-radius: var(--r-lg); background: var(--card); border: 1px solid var(--rule); margin: 20px 0; }
.callbox .mono.big { font-size: 22px; font-weight: 500; }
.pnanat { margin: 22px 0; padding: 26px; background: var(--card); border: 1px solid var(--rule); border-radius: var(--r-lg); }
.pnanat__pn { font: 500 clamp(26px, 4vw, 40px)/1 var(--f-mono); display: flex; gap: .3em; flex-wrap: wrap; }
.pnanat__pn span { padding-bottom: 10px; border-bottom: 2px solid var(--rule-2); }
.pnanat__pn span:nth-child(1) { border-color: var(--copper); }
.pnanat__pn span:nth-child(3) { border-color: var(--text); }
.pnanat dl { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 18px 0 0; font-size: 13px; }
.pnanat dt { font: 500 11px var(--f-mono); color: var(--mute); letter-spacing: .08em; }
.pnanat dd { margin: 4px 0 0; color: #2a2d30; }
.wearlist { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--rule); border-radius: var(--r-lg); background: var(--card); margin: 20px 0; }
.wearlist div { padding: 18px; border-right: 1px solid var(--rule); font-size: 13.5px; color: var(--mute); }
.wearlist div:last-child { border-right: 0; }
.wearlist b { display: block; color: var(--text); font-size: 14.5px; margin-bottom: 6px; }

.about-hero { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 56px; align-items: center; padding-top: 64px; padding-bottom: 64px; }
.about-hero h1 { font-size: clamp(34px, 4vw, 52px); letter-spacing: -.025em; line-height: 1.12; }
.about-hero p { color: #b5b9bd; font-size: 17px; margin-top: 18px; max-width: 560px; }
.about-hero__img { aspect-ratio: 4/3; border-radius: var(--r-lg); overflow: hidden; background: #000; position: relative; }
.about-hero__img img { width: 100%; height: 100%; object-fit: cover; mix-blend-mode: lighten; }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pillar { padding: 28px; background: var(--card); border: 1px solid var(--rule); border-radius: var(--r-lg); }
.pillar .mono { font-size: 12px; color: var(--copper-ink); letter-spacing: .1em; }
.pillar h3 { font-size: 20px; margin: 12px 0 10px; }
.pillar p { font-size: 14px; color: var(--mute); }
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; margin-top: 8px; }
.flow li { position: relative; padding: 22px 20px 0 0; border-top: 2px solid var(--ink-rule); }
.flow li::before { content: ''; position: absolute; top: -6px; left: 0; width: 10px; height: 10px; border-radius: 50%; background: var(--copper); }
.flow b { display: block; font: 500 12px var(--f-mono); color: var(--copper-hi); letter-spacing: .1em; }
.flow h3 { font-size: 17px; margin: 8px 0 8px; color: #fff; }
.flow p { font-size: 13.5px; color: var(--ink-mute); }
.contact { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 56px; }
.contact__aside p { color: var(--mute); margin-top: 12px; }
.contact__aside ul { margin-top: 24px; border-top: 1px solid var(--rule); }
.contact__aside li { display: grid; grid-template-columns: 110px 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--rule); font-size: 14px; }
.contact__aside li span:first-child { color: var(--mute); }
.formok { display: none; align-items: center; gap: 10px; padding: 12px 14px; background: var(--ok-wash); color: var(--ok); border-radius: var(--r); font-size: 13.5px; margin-top: 16px; }
.formok.is-on { display: flex; }

/* ---------- footer ---------- */
.ftr { background: var(--ink); color: var(--ink-mute); font-size: 13.5px; padding-top: 72px; }
.ftr__top { display: grid; grid-template-columns: 1.25fr .75fr 1.35fr .85fr .9fr; gap: 40px; padding-bottom: 48px; border-bottom: 1px solid var(--ink-rule); }
.ftr__brand p { margin-top: 18px; max-width: 340px; line-height: 1.7; }
.ftr__warranty { display: flex; gap: 12px; align-items: center; padding: 12px 14px; border: 1px solid var(--ink-rule); border-radius: var(--r); color: #c9c6bf; font-size: 12.5px; }
.ftr__warranty .mono { font-size: 22px; color: var(--copper-hi); line-height: 1; }
.ftr__h { font: 600 11.5px var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: #fff; margin-bottom: 16px; }
.ftr li { margin-bottom: 9px; }
.ftr li a { transition: color .18s; }
.ftr li a:hover { color: #fff; }
.ftr__cols { columns: 2; column-gap: 24px; }
.ftr__cols li { break-inside: avoid; }
.ftr__cols .mono { display: inline-block; width: 50px; font-size: 11.5px; color: #6c737a; }
.ftr__disc { padding: 24px 0; font-size: 12px; line-height: 1.75; color: #7d848b; max-width: 980px; }
.ftr__bot { display: flex; justify-content: space-between; gap: 16px; padding: 20px 0 28px; border-top: 1px solid var(--ink-rule); font-size: 12px; color: #6c737a; }

/* toast */
.toast { position: fixed; z-index: 90; left: 50%; bottom: 24px; transform: translate(-50%, 16px); opacity: 0; visibility: hidden; display: flex; align-items: center; gap: 12px; padding: 12px 16px 12px 14px; background: var(--ink); color: var(--ink-text); border: 1px solid var(--ink-rule); border-left: 3px solid var(--copper); border-radius: var(--r); box-shadow: 0 20px 40px -16px rgba(0,0,0,.5); font-size: 13.5px; transition: transform .35s var(--ease), opacity .25s, visibility 0s .35s; max-width: calc(100vw - 32px); }
.toast.is-on { transform: translate(-50%, 0); opacity: 1; visibility: visible; transition: transform .35s var(--ease), opacity .25s; }
.toast .i { color: #6fcf97; width: 16px; height: 16px; }
.toast a { color: var(--copper-hi); font-weight: 600; white-space: nowrap; margin-left: 4px; }
.toast a:hover { text-decoration: underline; }

/* reveal */
@media (prefers-reduced-motion: no-preference) {
  .rv { opacity: 0; transform: translateY(14px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
  .rv.in { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1200px) {
  .hdr__search { width: 200px; }
  .pgrid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .ftr__top { grid-template-columns: 1.1fr .7fr 1.2fr .75fr .8fr; gap: 24px; }
}
@media (max-width: 1080px) {
  :root { --gut: 24px; }
  .hdr__search { display: none; }
  .nav__a { padding: 0 10px; }
  .hero__in { grid-template-columns: 1fr; min-height: 0; gap: 24px; }
  .hero__vis { max-width: 520px; justify-self: center; }
  .mgrid { grid-template-columns: repeat(2, 1fr); }
  .cgrid { grid-template-columns: repeat(3, 1fr); }
  .setband { grid-template-columns: 1fr; }
  .setband__vis { min-height: 300px; }
  .setband__vis::after { background: linear-gradient(180deg, transparent 60%, var(--ink)); }
  .qstrip { grid-template-columns: repeat(2, 1fr); }
  .q:nth-child(2) { border-right: 0; } .q:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
  .pl { grid-template-columns: 220px minmax(0, 1fr); gap: 28px; }
  .pgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pd { grid-template-columns: 1fr; gap: 36px; }
  .rfq { grid-template-columns: 1fr; }
  .rfq__side { position: static; }
  .doc { grid-template-columns: 1fr; gap: 0; }
  .toc { display: none; }
  .about-hero { grid-template-columns: 1fr; }
  .flow { grid-template-columns: repeat(2, 1fr); gap: 28px 0; }
  .contact { grid-template-columns: 1fr; gap: 32px; }
  .ftr__top { grid-template-columns: 1fr 1fr; }
  .cta { grid-template-columns: 1fr; padding: 44px; }
}
@media (max-width: 860px) {
  .util__stock { display: none; }
  .hdr { backdrop-filter: none; background: var(--ink); }
  .nav { position: fixed; inset: var(--navtop, 102px) 0 0 0; z-index: 49; flex-direction: column; align-items: stretch; gap: 0; padding: 12px var(--gut) 32px; background: var(--ink); transform: translateX(100%); visibility: hidden; transition: transform .3s var(--ease), visibility 0s .3s; overflow: auto; }
  .nav-open .nav { transform: none; visibility: visible; transition: transform .3s var(--ease); }
  .nav-open { overflow: hidden; }
  .nav__a { height: 56px; padding: 0; font-size: 18px; border-bottom: 1px solid var(--ink-rule); }
  .nav__a::after { left: 0; right: auto; width: 24px; }
  .nav__search { display: flex; gap: 8px; margin-top: 24px; }
  .nav__search input { flex: 1; min-width: 0; height: 48px; padding: 0 14px; background: var(--ink-3); border: 1px solid var(--ink-rule); border-radius: var(--r); color: #fff; font-family: var(--f-mono); }
  .nav__search input:focus { outline: 0; border-color: var(--copper); }
  .nav__search .btn { height: 48px; }
  .burger { display: block; }
  .hdr__in { gap: 12px; }
  .hdr__rfq { margin-left: auto; }
  .pl { grid-template-columns: 1fr; }
  .filters { position: fixed; z-index: 80; inset: 0 0 0 auto; width: min(360px, 90vw); max-height: none; top: 0; background: var(--paper); padding: 20px 22px 100px; transform: translateX(100%); transition: transform .3s var(--ease), visibility 0s .3s; visibility: hidden; box-shadow: -20px 0 60px -20px rgba(0,0,0,.4); }
  .filters-open .filters { transform: none; visibility: visible; transition: transform .3s var(--ease); }
  .filters__apply { position: fixed; bottom: 0; right: 0; width: min(360px, 90vw); padding: 14px 22px; background: var(--paper); border-top: 1px solid var(--rule); }
  .filters__apply .btn { width: 100%; }
  .scrim { position: fixed; inset: 0; z-index: 79; background: rgba(8,9,10,.5); opacity: 0; visibility: hidden; transition: opacity .3s, visibility 0s .3s; }
  .filters-open .scrim { opacity: 1; visibility: visible; transition: opacity .3s; }
  .btn-filters { display: inline-flex; }
  .lookup__body { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .step { border-right: 0; margin-right: 0; border-bottom: 1px solid var(--ink-rule); padding: 26px 0; }
  .step:last-child { border-bottom: 0; }
  .pillars { grid-template-columns: 1fr; }
}
@media (min-width: 861px) { .filters__apply, .scrim, .filters__close { display: none; } }
@media (max-width: 640px) {
  :root { --gut: 18px; }
  body { font-size: 14.5px; }
  .util__tag span:last-child { font-size: 11px; }
  .hdr__in { height: 60px; }
  .logo__word { font-size: 24px; }
  .hdr__rfq { padding: 0 8px 0 10px; }
  .hdr__rfq > span:not(.badge) { display: none; }
  .sec { padding: 64px 0; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: 16px; margin-bottom: 28px; }
  .hero__in { padding-top: 44px; padding-bottom: 48px; }
  .hero__sub { font-size: 15.5px; }
  .qsearch__box { flex-wrap: wrap; padding: 6px; }
  .qsearch__icon { width: 40px; height: 52px; }
  .qsearch input { font-size: 16px; height: 52px; }
  .qsearch .btn { width: 100%; height: 48px; margin-top: 6px; }
  .hero__facts { grid-template-columns: repeat(2, 1fr); }
  .hero__facts div { margin-right: 0; padding: 16px 12px 16px 0; border-right: 0; border-bottom: 1px solid var(--ink-rule); }
  .hero__facts div:nth-child(odd) { border-right: 1px solid var(--ink-rule); margin-right: 16px; }
  .callout { min-width: 0; font-size: 11px; padding: 8px 10px; } .callout b { font-size: 12px; }
  .callout::before { display: none; }
  .mgrid { grid-template-columns: 1fr; gap: 14px; }
  .mcard { flex-direction: row; } .mcard__media { width: 42%; aspect-ratio: auto; border-bottom: 0; border-right: 1px solid var(--rule); flex: none; }
  .mcard__body { padding: 14px 16px; } .mcard h3 { font-size: 16px; } .mcard__models { display: none; } .mcard__foot { padding-top: 10px; }
  .cgrid { grid-template-columns: repeat(2, 1fr); }
  .ccell { min-height: 132px; padding: 16px; } .ccell__code { font-size: 22px; } .ccell__n { top: 18px; right: 16px; } .ccell p { display: none; }
  .ccell--cta p { display: block; font-size: 12px; } .ccell--cta h3 { font-size: 17px; }
  .pgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .pc__body { padding: 12px 12px 2px; } .pc__foot { padding: 10px 12px 12px; }
  .pc__name { font-size: 14.5px; } .pc__pn .mono { font-size: 13px; } .pc__fits { font-size: 11.5px; }
  .btn-add { height: 38px; font-size: 12.5px; gap: 6px; } .btn-add .i { display: none; }
  .stock { font-size: 11px; }
  .setband__body { padding: 28px 22px; } .setband h3 { font-size: 24px; }
  .setlist li { grid-template-columns: 1fr auto; gap: 2px 12px; } .setlist .mono { grid-column: 1; } .setlist__name { grid-column: 1; grid-row: 2; font-size: 13px; } .setlist .stock { grid-row: 1 / span 2; grid-column: 2; }
  .qstrip { grid-template-columns: 1fr; } .q { border-right: 0; border-bottom: 1px solid var(--rule); } .q:last-child { border-bottom: 0; }
  .cta { padding: 32px 22px; }
  .plbar { gap: 10px; } .plsearch { flex-basis: 100%; } .plctl { margin-left: 0; width: 100%; justify-content: space-between; } .vtoggle { display: none; }
  .ptable, .ptable tbody { display: block; } .ptable thead { display: none; } .ptable tr { display: grid; grid-template-columns: 1fr auto; padding: 12px; border-bottom: 1px solid var(--rule); gap: 6px 12px; }
  .ptable td { padding: 0; border: 0; } .ptable td:nth-child(1) { grid-column: 1 / -1; } .ptable td:nth-child(3) { display: none; } .ptable td:nth-child(6) { grid-column: 1 / -1; } .ptable .btn-add { width: 100%; }
  .pnbox__v { font-size: 19px; } .pnbox__l { padding: 10px; } .pnbox button span { display: none; }
  .kv div { grid-template-columns: 100px 1fr; }
  .buy__price { flex-direction: column; } .buy__price p { text-align: left; }
  .assure { grid-template-columns: 1fr; } .assure div { border-right: 0; border-bottom: 1px solid var(--rule); } .assure div:last-child { border-bottom: 0; }
  .gallery__thumbs button { width: 72px; }
  .lines li { grid-template-columns: 56px minmax(0, 1fr) auto; padding: 14px 16px; gap: 12px; } .lines .ptable__thumb, .lines__custom { width: 56px; }
  .lines .qty { grid-column: 2; justify-self: start; } .lines__rm { grid-row: 1; grid-column: 3; }
  .addline__row { grid-template-columns: 1fr 90px; } .addline__row .field:nth-child(2) { grid-column: 1 / -1; grid-row: 2; } .addline__row .btn { grid-column: 1 / -1; }
  .fgrid { grid-template-columns: 1fr; }
  .panel__body { padding: 18px 16px; } .panel__head { padding: 16px; }
  .ucparts { grid-template-columns: 1fr; }
  .pnanat dl, .wearlist { grid-template-columns: 1fr; } .wearlist div { border-right: 0; border-bottom: 1px solid var(--rule); }
  .prose h2 { font-size: 25px; }
  .flow { grid-template-columns: 1fr; }
  .ftr__top { grid-template-columns: 1fr; gap: 32px; }
  .ftr__bot { flex-direction: column; gap: 6px; }
  .lookup__res li { grid-template-columns: 18px 1fr auto; } .lookup__res li small { display: none; }
  .contact__aside li { grid-template-columns: 90px 1fr; }
}


/* —— submit widget (paste + Excel) —— */
.submit { --sub-bg: var(--paper); --sub-text: var(--text); --sub-mute: var(--mute); --sub-line: var(--rule); --sub-field: #fff; }
.submit--hero, .submit--ink { --sub-bg: var(--paper); --sub-text: var(--text); --sub-mute: var(--mute); --sub-line: var(--rule); --sub-field: #fff; }
.submit--hero { margin-top: 36px; max-width: 640px; }
.submit--hero .submit__ta { min-height: 118px; height: 118px; }
.submit__grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(220px, .75fr); gap: 0; background: var(--sub-bg); color: var(--sub-text); border-radius: var(--r-lg); overflow: hidden; box-shadow: 0 30px 60px -30px rgba(0,0,0,.8), 0 0 0 1px rgba(255,255,255,.04); }
.submit--panel .submit__grid { box-shadow: none; border: 1px solid var(--rule); }
.submit--ink .submit__grid { background: var(--ink-3); color: var(--ink-text); --sub-bg: var(--ink-3); --sub-text: var(--ink-text); --sub-mute: var(--ink-mute); --sub-line: var(--ink-rule); --sub-field: var(--ink-2); box-shadow: none; border: 1px solid var(--ink-rule); }
.submit--ink .submit__ta { color: #fff; }
.submit--ink .submit__drop { background: var(--ink-2); border-color: var(--ink-rule); color: var(--ink-text); }
.submit--ink .submit__drop:hover, .submit--ink .submit__drop.is-over { border-color: var(--copper); }
.submit--ink .submit__tpl a { color: var(--copper-hi); }
.submit__paste, .submit__xl { padding: 16px 18px 18px; }
.submit__xl { border-left: 1px solid var(--sub-line); display: flex; flex-direction: column; }
.submit__lbl { display: block; font-size: 12.5px; font-weight: 600; color: var(--sub-mute); margin-bottom: 8px; }
.submit__ta { width: 100%; min-height: 132px; resize: vertical; border: 1px solid var(--sub-line); border-radius: var(--r); background: var(--sub-field); color: var(--text); font: 14.5px/1.7 var(--f-mono); padding: 10px 12px; }
.submit--ink .submit__ta { color: #fff; }
.submit__ta:focus { outline: 0; border-color: var(--copper); box-shadow: 0 0 0 3px var(--copper-wash); }
.submit__ta.is-err { border-color: var(--err); }
.submit__row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 12px; }
.submit__hint { font-size: 12px; color: var(--sub-mute); }
.submit__drop { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; text-align: center; padding: 18px 12px; border: 1.5px dashed var(--sub-line); border-radius: var(--r); background: var(--paper-2); cursor: pointer; min-height: 132px; }
.submit--ink .submit__drop { background: var(--ink-2); }
.submit__drop .i { width: 22px; height: 22px; color: var(--copper); }
.submit__drop strong { font-size: 14px; font-weight: 600; }
.submit__drop span { font-size: 12px; color: var(--sub-mute); }
.submit__drop:hover, .submit__drop.is-over, .submit__drop:focus { outline: 0; border-color: var(--copper); background: var(--copper-wash); }
.submit__tpl { margin-top: 10px; font-size: 12.5px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.submit__tpl a { color: var(--copper-ink); font-weight: 500; }
.submit--ink .submit__tpl a:hover, .submit__tpl a:hover { color: var(--copper); }
.submit__stage { margin-top: 16px; }
.submit--hero .submit__stage { max-width: none; }
.submit__map { background: var(--paper); color: var(--text); border-radius: var(--r-lg); padding: 18px 20px 20px; border: 1px solid var(--rule); }
.submit--hero .submit__map { box-shadow: 0 20px 40px -24px rgba(0,0,0,.6); }
.submit__maphead { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; margin-bottom: 14px; }
.submit__maphead h3 { font-size: 16px; }
.submit__fname { font-size: 12.5px; color: var(--mute); margin-top: 2px; font-family: var(--f-mono); }
.submit__fields { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)) auto; gap: 10px 14px; align-items: end; margin-bottom: 12px; }
.submit__hdrsw { padding-bottom: 4px; }
.submit__sum { font-size: 13px; color: var(--mute); margin: 4px 0 10px; }
.submit__tablewrap { overflow: auto; max-height: 320px; border: 1px solid var(--rule); border-radius: var(--r); }
.submit__table { width: 100%; border-collapse: collapse; font-size: 13px; }
.submit__table th, .submit__table td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.submit__table th { font-size: 11px; letter-spacing: .04em; text-transform: uppercase; color: var(--mute); background: var(--paper-2); position: sticky; top: 0; }
.submit__table .mono { font-size: 13px; }
.submit__err { background: var(--err-wash); color: var(--err); padding: 10px 14px; border-radius: var(--r); font-size: 13.5px; display: flex; justify-content: space-between; gap: 12px; align-items: center; }

/* attachments + source-unknown part + success extras */
.attach { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; margin-top: 6px; }
.attach__list { list-style: none; margin: 0; padding: 0; width: 100%; }
.attach__list li { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 6px 0; border-bottom: 1px solid var(--rule); font-size: 13px; }
.attach__list li.is-empty { color: var(--mute); border: 0; }
.attach__meta { font-size: 13px; color: var(--text); display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.attach__meta .i { width: 16px; height: 16px; color: var(--copper); }
.howq__hours { margin-top: 14px; font-size: 13px; color: var(--copper-hi); letter-spacing: .04em; }
.success__attach { margin-top: 16px; font-size: 13.5px; color: var(--mute); }
.source { padding: 48px 0 80px; }
.source__card { max-width: 640px; background: var(--card); border: 1px solid var(--rule); border-radius: var(--r-lg); padding: 40px 40px 36px; }
.source__card h1 { font-size: clamp(28px, 3vw, 36px); letter-spacing: -.02em; margin: 8px 0 18px; }
.source__pn { display: flex; align-items: baseline; gap: 12px; margin: 0 0 16px; padding: 12px 16px; background: var(--paper-2); border-radius: var(--r); }
.source__pn .mono { font-size: 22px; font-weight: 500; }
.source__hint { margin-top: 22px; font-size: 13.5px; color: var(--mute); }

@media (max-width: 1200px) {
  .submit__fields { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .submit__hdrsw { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
  .submit__grid { grid-template-columns: 1fr; }
  .submit__paste { order: 1; }
  .submit__grades { order: 2; }
  .submit__xl { order: 3; border-left: 0; border-top: 0; border-bottom: 1px solid var(--sub-line); }
  .submit__fields { grid-template-columns: 1fr 1fr; }
  .submit__hdrsw { grid-column: 1 / -1; }
  .source__card { padding: 28px 22px; }
}
@media (max-width: 640px) {
  .submit--hero { margin-top: 24px; }
  .submit--hero .submit__ta { min-height: 0; height: 5.6em; }
  .submit__ta { font-size: 16px; min-height: 110px; }
  .submit__drop { min-height: 92px; padding: 14px 12px; }
  .submit__row .btn { width: 100%; }
  .hero__vis { display: none; }
  .submit__fields { grid-template-columns: 1fr; }
  .hero__sub { margin-top: 16px; }
}

/* ---------- grades ---------- */
.gtags { display: inline-flex; flex-wrap: wrap; gap: 4px; align-items: center; vertical-align: middle; }
.gtag { display: inline-block; font: 600 10px/1 var(--f-text); letter-spacing: .06em; padding: 3px 7px; border-radius: 2px; border: 1px solid transparent; white-space: nowrap; }
.gtag--genuine { background: var(--copper-wash); color: var(--copper-ink); border-color: #e0c29a; }
.gtag--oem { background: var(--paper-2); color: var(--text); border-color: var(--rule); }
.gtag--am { background: transparent; color: var(--mute); border-color: var(--steel); border-style: dashed; }
.pc__grades { margin-top: 2px; }
.fopt .gtag { flex: none; }
.gpick { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.gpick__lbl { font-size: 12px; color: var(--mute); margin-right: 2px; }
.gpick__btn { font: 500 12.5px/1 var(--f-text); padding: 6px 10px; border: 1px solid var(--rule); background: var(--card); color: var(--text); border-radius: var(--r); cursor: pointer; transition: background .15s, border-color .15s, color .15s; }
.gpick__btn:hover { border-color: var(--copper); }
.gpick__btn:focus-visible { outline: 2px solid var(--copper); outline-offset: 2px; }
.gpick__btn.is-on { font-weight: 600; }
.gpick__all.is-on { background: var(--ink); color: var(--ink-text); border-color: var(--ink); }
.gpick__g--genuine.is-on { background: var(--copper-wash); color: var(--copper-ink); border-color: #d4a66a; }
.gpick__g--oem.is-on { background: var(--paper-2); color: var(--text); border-color: var(--rule-2); }
.gpick__g--am.is-on { background: transparent; color: var(--text); border-color: var(--steel); border-style: dashed; }
.gpick--sm .gpick__btn { padding: 4px 8px; font-size: 11.5px; }
.gpick--sm .gpick__lbl { font-size: 11px; width: 100%; margin: 0 0 2px; }
.gpick__hint { font-size: 12px; color: var(--mute); margin: 6px 0 0; line-height: 1.5; }
.submit__grades { grid-column: 1 / -1; padding: 12px 18px 16px; border-top: 1px solid var(--sub-line); background: var(--sub-bg); color: var(--sub-text); }
.submit__grades .gpick__lbl, .submit__grades .gpick__hint { color: var(--sub-mute); }
.submit--ink .gpick__btn { background: var(--ink-2); color: var(--ink-text); border-color: var(--ink-rule); }
.submit--ink .gpick__all.is-on { background: #fff; color: var(--ink); border-color: #fff; }
.submit--ink .gpick__g--genuine.is-on { background: var(--copper-wash); color: var(--copper-ink); border-color: #d4a66a; }
.submit--ink .gpick__g--oem.is-on { background: var(--ink); color: var(--ink-text); border-color: #6c737a; }
.submit--ink .gpick__g--am.is-on { color: var(--ink-text); border-color: #9aa0a6; }
.panel__grades { padding: 12px 22px 16px; border-bottom: 1px solid var(--rule); }
.lines .gpick { margin-top: 8px; }
.pd-grades { margin: 16px 0 4px; }
.pd-grades__l { font-size: 13px; font-weight: 600; margin: 0 0 8px; }
.pd-grades__row { display: flex; flex-wrap: wrap; gap: 8px; }
.gopt { display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; border: 1px solid var(--rule); border-radius: var(--r); cursor: pointer; background: var(--card); transition: border-color .15s, background .15s; }
.gopt input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.gopt:hover { border-color: var(--copper); }
.gopt:focus-within { outline: 2px solid var(--copper); outline-offset: 2px; }
.gopt.is-on { border-color: var(--copper); background: var(--copper-wash); }
.gopt .stock { margin-left: 2px; }
.grades-table { width: 100%; border-collapse: collapse; margin: 16px 0 8px; font-size: 14.5px; }
.grades-table th, .grades-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--rule); vertical-align: top; }
.grades-table th { font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: var(--mute); background: var(--paper-2); font-weight: 600; }
.grades-table td:first-child { white-space: nowrap; }
@media (max-width: 640px) {
  .grades-table, .grades-table tbody, .grades-table tr { display: block; }
  .grades-table thead { display: none; }
  .grades-table td { display: block; padding: 4px 0; border: 0; }
  .grades-table td:first-child { padding-top: 14px; }
  .grades-table tr { border-bottom: 1px solid var(--rule); padding-bottom: 10px; }
}

/* honeypot */
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

/* public contact chips */
.cchip, .cchip--btn { display: inline-flex; align-items: baseline; gap: 6px; margin: 0 10px 8px 0; padding: 0; border: 0; background: none; color: inherit; font: inherit; text-decoration: none; cursor: pointer; }
.cchip:hover, .cchip--btn:hover { color: #fff; }
.ftr .cchip:hover, .ftr .cchip--btn:hover { color: #fff; }
.util .cchip { color: var(--ink-text); font-size: 12.5px; }
.util .cchip:hover { color: var(--copper-hi); }
.cchip__k { font-size: 10px; letter-spacing: .06em; text-transform: uppercase; color: var(--steel); }
.util .cchip__k, .ftr .cchip__k { color: #8a9097; }
.util__contact { display: flex; flex-wrap: wrap; align-items: center; gap: 0 4px; margin-left: auto; }
.ftr__reach { padding: 22px 0 8px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px 32px; }
.ftr__reachlist { display: flex; flex-wrap: wrap; align-items: baseline; }
.ftr__addr { width: 100%; margin: 4px 0 0; font-size: 13px; color: #9aa0a6; }
.soc { display: flex; flex-wrap: wrap; gap: 10px 16px; list-style: none; margin: 0; padding: 0; }
.soc a { display: inline-flex; align-items: center; gap: 6px; color: #c9c6bf; }
.soc a:hover { color: #fff; }
.soc .i { width: 16px; height: 16px; }
.public-contact { margin-top: 28px; }
.public-contact h3 { font-size: 14px; margin-bottom: 10px; }
.success__reach { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--rule); }
.success__reach p { font-size: 13.5px; color: var(--mute); margin-bottom: 8px; }
.success__reach .cchip { color: var(--text); }
.success__reach .cchip:hover { color: var(--copper-ink); }
.success__proto { margin-top: 18px; font-size: 13px; color: var(--mute); }
#form-send-err { margin: 0 0 12px; }
.howq__hours { letter-spacing: 0; font-family: var(--f-text); font-size: 14px; line-height: 1.55; color: var(--copper-hi); }

/* WeChat popover */
.wxim { position: fixed; inset: 0; z-index: 120; background: rgba(8,9,10,.55); display: grid; place-items: center; padding: 24px; }
.wxim[hidden] { display: none !important; }
.wxim__card { position: relative; background: var(--card); color: var(--text); padding: 28px 28px 24px; border-radius: var(--r-lg); max-width: 320px; width: 100%; text-align: center; box-shadow: var(--shadow); }
.wxim__x { position: absolute; top: 8px; right: 10px; border: 0; background: none; font-size: 22px; cursor: pointer; color: var(--mute); line-height: 1; }
.wxim__id { font-size: 18px; margin: 8px 0 12px; }
.wxim__qr { width: 200px; height: 200px; object-fit: contain; background: #fff; border: 1px solid var(--rule); }

/* admin */
.admin { padding: 40px 0 80px; display: flex; flex-direction: column; gap: 28px; max-width: 1080px; }
.admin__banner { background: var(--copper-wash); border: 1px solid #e0c29a; border-left: 3px solid var(--copper); padding: 16px 18px; border-radius: var(--r); font-size: 14px; line-height: 1.65; }
.admin__banner strong { display: block; margin-bottom: 4px; }
.admin__sec .panel__head h2 { font-size: 18px; }
.admin__form { display: flex; flex-direction: column; gap: 28px; }
.admin__tablewrap { overflow: auto; }
.admin__cols { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.admin__cols th, .admin__cols td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--rule); vertical-align: middle; }
.admin__cols .input, .admin__cols select { width: 100%; }
.admin__ord { white-space: nowrap; width: 64px; }
.admin__icon { width: 26px; height: 26px; border: 1px solid var(--rule); background: var(--card); border-radius: var(--r); cursor: pointer; }
.admin__icon:disabled { opacity: .35; cursor: default; }
.admin__row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.admin__h3 { font-size: 15px; margin: 22px 0 8px; }
.admin__social { list-style: none; margin: 0 0 12px; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.admin__social li { display: grid; grid-template-columns: 140px minmax(0, .7fr) minmax(0, 1.4fr) auto; gap: 8px; align-items: center; }
.admin__qr { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.admin__qrimg { width: 88px; height: 88px; object-fit: contain; border: 1px solid var(--rule); background: #fff; }
.admin__status { margin-top: 16px; font-size: 13.5px; min-height: 1.3em; }
.admin__status.is-ok { color: var(--ok); }
.admin__status.is-err { color: var(--err); }

@media (max-width: 860px) {
  .util__contact { display: none; }
  .admin__social li { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero__facts b { font-size: 16px; }
}