/* Xinya Power — transformer site. Visual concept: "blueprint / precision instrument".
   Paper-white with a blueprint grid, ink type, copper accent (windings), signal-teal technical lines,
   square corners and crop-mark frames. Archivo (variable width) + IBM Plex Mono. */

@font-face { font-family: 'Archivo'; src: url(/assets/fonts/archivo.woff2) format('woff2-variations'); font-weight: 100 900; font-stretch: 62% 125%; font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: 'Archivo'; src: url(/assets/fonts/archivo-ext.woff2) format('woff2-variations'); font-weight: 100 900; font-stretch: 62% 125%; font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: 'Archivo'; src: url(/assets/fonts/archivo-vi.woff2) format('woff2-variations'); font-weight: 100 900; font-stretch: 62% 125%; font-display: swap;
  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB; }
@font-face { font-family: 'Inter Cyr'; src: url(/assets/fonts/inter-cyrillic.woff2) format('woff2'); font-weight: 100 900; font-display: swap; unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116; }
@font-face { font-family: 'Plex Mono'; src: url(/assets/fonts/plexmono-400.woff2) format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Plex Mono'; src: url(/assets/fonts/plexmono-500.woff2) format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Plex Mono'; src: url(/assets/fonts/plexmono-600.woff2) format('woff2'); font-weight: 600 700; font-display: swap; }

:root {
  --paper: #f4f5f1; --paper-2: #eaece6; --white: #ffffff;
  --ink: #0f1c28; --ink-2: #2f3d4a; --mute: #66727d; --mute-2: #8d979f;
  --rule: #d8ddda; --rule-2: #bcc4c4;
  --cu: #c0561b; --cu-2: #db7331; --cu-soft: #f6e5d6;
  --sig: #0a87a3; --sig-soft: #dcf0f4; --ok: #1d8a52;
  --grid: rgba(10, 135, 163, .075); --grid-2: rgba(10, 135, 163, .14);
  --sans: 'Archivo', 'Inter Cyr', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --mono: 'Plex Mono', ui-monospace, 'SFMono-Regular', Consolas, monospace;
  --wrap: 1300px; --gutter: clamp(16px, 4vw, 44px);
  --top-h: 36px; --bar-h: 72px; --header-h: calc(var(--top-h) + var(--bar-h));
  --shadow: 0 1px 0 rgba(15, 28, 40, .04), 0 12px 28px -18px rgba(15, 28, 40, .25);
  --ease: cubic-bezier(.2, .8, .2, 1);
}
:lang(zh) { --sans: 'Archivo', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', sans-serif; }
:lang(ja) { --sans: 'Archivo', 'Hiragino Kaku Gothic ProN', 'Yu Gothic UI', 'Meiryo', 'Noto Sans JP', sans-serif; }
:lang(th) { --sans: 'Archivo', 'Leelawadee UI', 'Thonburi', 'Noto Sans Thai', 'Tahoma', sans-serif; }
:lang(ar) { --sans: 'Segoe UI', 'Geeza Pro', 'Noto Sans Arabic', 'Tahoma', sans-serif; }
:lang(uk) { --sans: 'Archivo', 'Inter Cyr', 'Segoe UI', sans-serif; }

*, *::before, *::after { box-sizing: border-box; }
html { font-size: clamp(16px, .5vw + 9.8px, 18.5px); -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--bar-h) + 20px); }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1rem/1.65 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg, canvas { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
h1, h2, h3, h4 { margin: 0; font-family: var(--sans); font-weight: 700; line-height: 1.08; letter-spacing: -.015em; font-stretch: 82%; }
:lang(zh) :is(h1, h2, h3, h4), :lang(ja) :is(h1, h2, h3, h4), :lang(th) :is(h1, h2, h3, h4), :lang(ar) :is(h1, h2, h3, h4) { font-stretch: 100%; letter-spacing: 0; line-height: 1.25; }
p { margin: 0 0 1em; }
:focus-visible { outline: 2px solid var(--cu); outline-offset: 3px; }
::selection { background: var(--cu); color: #fff; }
.wrap { width: min(var(--wrap), 100% - 2 * var(--gutter)); margin-inline: auto; }
.wrap.narrow { width: min(820px, 100% - 2 * var(--gutter)); }
.muted { color: var(--mute); } .small { font-size: .85rem; }
.hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.skip { position: absolute; top: -60px; inset-inline-start: 12px; z-index: 200; background: var(--cu); color: #fff; padding: 8px 14px; }
.skip:focus { top: 8px; }
.ico { width: 1.15em; height: 1.15em; flex: none; }
.lead { font-size: clamp(1.05rem, 1.2vw, 1.2rem); color: var(--ink-2); max-width: 62ch; }

/* blueprint grid backgrounds */
.bp { background-color: var(--paper); background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px),
  linear-gradient(var(--grid-2) 1px, transparent 1px), linear-gradient(90deg, var(--grid-2) 1px, transparent 1px);
  background-size: 24px 24px, 24px 24px, 120px 120px, 120px 120px; background-position: -1px -1px; }

/* kicker / section labels */
.kicker { display: flex; align-items: center; gap: 12px; font: 500 .74rem/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--sig); margin: 0 0 18px; }
.kicker::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, var(--rule-2), transparent); }
[dir=rtl] .kicker::after { background: linear-gradient(270deg, var(--rule-2), transparent); }
.kicker b { color: var(--cu); font-weight: 600; }
:lang(zh) .kicker, :lang(ja) .kicker, :lang(th) .kicker, :lang(ar) .kicker { letter-spacing: .04em; font-family: var(--sans); font-size: .82rem; }
.sec-head { margin-bottom: clamp(28px, 4vw, 52px); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .8fr); gap: 16px 48px; align-items: end; }
.sec-head .kicker { grid-column: 1 / -1; margin: 0; }
.sec-head h2 { font-size: clamp(2rem, 4.2vw, 3.6rem); max-width: 18ch; }
.sec-head .lead { margin: 0; font-size: 1.02rem; color: var(--mute); }
.sec-head.center { grid-template-columns: 1fr; text-align: center; justify-items: center; }
.sec-head.center .kicker { justify-content: center; } .sec-head.center .kicker::after { display: none; }
.section { padding-block: clamp(64px, 9vw, 128px); position: relative; }
.section.tight { padding-block: clamp(36px, 5vw, 64px); }
.section.white { background: var(--white); border-block: 1px solid var(--rule); }

/* crop-mark frame (four corner ticks) */
.frame { position: relative; }
.frame::before, .frame::after { content: ""; position: absolute; width: 14px; height: 14px; pointer-events: none; z-index: 2; }
.frame::before { top: -7px; inset-inline-start: -7px; border-top: 1.5px solid var(--ink); border-inline-start: 1.5px solid var(--ink); }
.frame::after { bottom: -7px; inset-inline-end: -7px; border-bottom: 1.5px solid var(--ink); border-inline-end: 1.5px solid var(--ink); }

/* buttons */
.btn { --b: var(--cu); display: inline-flex; align-items: center; gap: 12px; padding: .9em 1.35em; border: 1.5px solid var(--b); background: var(--b); color: #fff;
  font: 600 .8rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; cursor: pointer; position: relative; overflow: hidden; isolation: isolate; transition: color .25s, border-color .25s; }
:lang(zh) .btn, :lang(ja) .btn, :lang(th) .btn, :lang(ar) .btn { font-family: var(--sans); letter-spacing: .02em; font-size: .92rem; }
.btn::before { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--ink); transform: scaleX(0); transform-origin: right; transition: transform .35s var(--ease); }
.btn:hover::before { transform: scaleX(1); transform-origin: left; }
.btn:hover { border-color: var(--ink); }
.btn .ico { transition: transform .25s; } .btn:hover .ico { transform: translateX(3px); } [dir=rtl] .btn .ico { transform: scaleX(-1); }
.btn-primary { --b: var(--cu); }
.btn-ghost { background: transparent; color: var(--ink); --b: var(--ink); }
.btn-ghost:hover { color: #fff; }
.btn-wa { --b: #1f9d55; }
.btn-sm { padding: .7em 1em; font-size: .72rem; }

/* ── header ─────────────────────────────────────────────────────────────── */
.site-header { position: fixed; inset: 0 0 auto; z-index: 60; transition: transform .35s var(--ease); }
.topbar { height: var(--top-h); background: var(--ink); color: #c8d1d7; font: 500 .72rem/1 var(--mono); letter-spacing: .04em; }
.topbar .wrap { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.tb-std { display: flex; gap: 18px; white-space: nowrap; overflow: hidden; }
.tb-std span::before { content: "■"; color: var(--cu-2); margin-inline-end: 7px; font-size: .6rem; vertical-align: 1px; }
.tb-right { display: flex; align-items: center; gap: 18px; }
.tb-right a { display: inline-flex; gap: 6px; align-items: center; color: #e6ecef; } .tb-right a:hover { color: #fff; }
.bar { height: var(--bar-h); background: rgba(255,255,255,.94); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--rule); }
.bar .wrap { height: 100%; display: flex; align-items: center; gap: 28px; }
.site-header.scrolled { transform: translateY(calc(-1 * var(--top-h))); }
.site-header.scrolled .bar { box-shadow: 0 10px 30px -22px rgba(15,28,40,.4); }
.logo { display: inline-flex; align-items: center; gap: 10px; flex: none; }
.logo-mark { width: 44px; height: auto; }
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-text b { font: 800 1.25rem/1 var(--sans); font-stretch: 75%; letter-spacing: .06em; }
.logo-text i { font: 500 .58rem/1 var(--mono); font-style: normal; letter-spacing: .38em; color: var(--cu); margin-top: 5px; }
.nav { display: flex; align-items: stretch; height: 100%; margin-inline: auto; }
.nav-item { position: relative; display: flex; }
.nav-link { display: inline-flex; align-items: center; gap: 4px; padding: 0 16px; height: 100%; font-weight: 600; font-size: .94rem; color: var(--ink-2); position: relative; }
.nav-link::after { content: ""; position: absolute; inset-inline: 16px; bottom: -1px; height: 3px; background: var(--cu); transform: scaleX(0); transition: transform .25s var(--ease); }
.nav-link:hover, .nav-link[aria-current] { color: var(--ink); } .nav-link:hover::after, .nav-link[aria-current]::after { transform: scaleX(1); }
.nav-link .chev { width: 14px; height: 14px; opacity: .6; }
.header-actions { display: flex; align-items: center; gap: 10px; }
.menu-btn { display: none; width: 44px; height: 44px; border: 1px solid var(--rule-2); background: #fff; place-items: center; cursor: pointer; }
/* language */
.lang { position: relative; }
.lang-btn { display: inline-flex; align-items: center; gap: 7px; height: var(--top-h); padding: 0 4px; border: 0; background: none; color: #e6ecef; cursor: pointer; font: inherit; }
.lang-btn .chev { width: 13px; height: 13px; }
.flag { width: 20px; height: 13px; border-radius: 1px; box-shadow: 0 0 0 1px rgba(255,255,255,.25); }
.lang-menu { position: absolute; top: 100%; inset-inline-end: 0; z-index: 70; list-style: none; margin: 0; padding: 6px; min-width: 210px; max-height: 70vh; overflow: auto; background: #fff; border: 1px solid var(--rule-2); box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(6px); transition: .2s; font-family: var(--sans); letter-spacing: 0; }
.lang.open .lang-menu { opacity: 1; visibility: visible; transform: none; }
.lang-menu a { display: flex; align-items: center; gap: 10px; padding: 9px 10px; color: var(--ink-2); font-size: .9rem; }
.lang-menu a:hover, .lang-menu a[aria-current] { background: var(--paper); color: var(--ink); }
.lang-menu .tick { margin-inline-start: auto; color: var(--cu); }
.lang-menu .flag { box-shadow: 0 0 0 1px var(--rule); }
/* mega + drop */
.mega, .drop { position: absolute; top: 100%; z-index: 65; background: #fff; border: 1px solid var(--rule-2); border-top: 3px solid var(--cu); box-shadow: 0 30px 60px -30px rgba(15,28,40,.35);
  opacity: 0; visibility: hidden; transform: translateY(8px); transition: .2s var(--ease); }
.nav-item.open .mega, .nav-item.open .drop { opacity: 1; visibility: visible; transform: none; }
.mega { inset-inline-start: -120px; width: min(860px, 92vw); padding: 0; }
.mega-cols { display: grid; grid-template-columns: 230px 1fr; }
.mega-groups { display: flex; flex-direction: column; padding: 14px; background: var(--paper); border-inline-end: 1px solid var(--rule); }
.mega-group { display: flex; justify-content: space-between; align-items: center; padding: 12px 12px; font-weight: 650; color: var(--ink-2); border-inline-start: 3px solid transparent; }
.mega-group.on, .mega-group:hover { background: #fff; color: var(--ink); border-inline-start-color: var(--cu); }
.mega-group .chev { transform: rotate(-90deg); width: 14px; } [dir=rtl] .mega-group .chev { transform: rotate(90deg); }
.mega-panels { padding: 16px; }
.mega-panel-title { display: block; font: 500 .7rem var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--sig); margin: 4px 6px 10px; }
.mega-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; align-content: start; }
.mega-panel[hidden] { display: none; }
.mega-panel-title { grid-column: 1 / -1; }
.mega-item { display: flex; gap: 12px; align-items: center; padding: 10px; border: 1px solid transparent; }
.mega-item:hover { border-color: var(--rule); background: var(--paper); }
.mega-thumb { width: 64px; height: 48px; flex: none; background: #fff; border: 1px solid var(--rule); overflow: hidden; }
.mega-thumb img { width: 100%; height: 100%; object-fit: contain; mix-blend-mode: multiply; }
.mega-item b { display: block; font-size: .92rem; line-height: 1.25; }
.mega-item small { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; color: var(--mute); font-size: .78rem; line-height: 1.35; }
.mega-all { display: flex; justify-content: flex-end; align-items: center; gap: 8px; padding: 12px 18px; border-top: 1px solid var(--rule); font: 600 .74rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--cu); }
.drop { inset-inline-start: 0; width: 380px; padding: 8px; }
.drop-item { display: flex; gap: 12px; padding: 12px; align-items: flex-start; }
.drop-item:hover { background: var(--paper); }
.drop-item .ico { width: 34px; height: 34px; padding: 7px; border: 1px solid var(--rule-2); color: var(--cu); background: #fff; }
.drop-item b { display: block; font-size: .94rem; } .drop-item small { color: var(--mute); font-size: .8rem; }

/* ── hero: spec stage ───────────────────────────────────────────────────── */
.hx { position: relative; padding-top: var(--header-h); overflow: hidden; border-bottom: 1px solid var(--rule); }
.hx::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(900px 500px at 75% 40%, rgba(255,255,255,.9), transparent 70%); }
.hx-inner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); gap: clamp(24px, 4vw, 64px); align-items: center; min-height: min(780px, calc(100svh - var(--header-h) - 64px)); padding-block: clamp(40px, 6vw, 72px); }
.hx h1 { font-size: clamp(2.9rem, 6.4vw, 6.2rem); line-height: .92; font-stretch: 70%; font-weight: 800; letter-spacing: -.02em; margin-bottom: 26px; }
.hx h1 em { display: block; font-style: normal; color: var(--cu); }
:lang(zh) .hx h1, :lang(ja) .hx h1 { font-size: clamp(2.5rem, 5.2vw, 4.8rem); line-height: 1.12; }
:lang(th) .hx h1, :lang(ar) .hx h1 { font-size: clamp(2.2rem, 4.6vw, 4.2rem); line-height: 1.3; }
.hx .lead { margin-bottom: 30px; }
.hx-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 36px; }
.hx-specs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0; border-top: 1px solid var(--ink); }
.hx-specs div { padding: 12px 14px 0 0; border-inline-end: 1px solid var(--rule); padding-inline-start: 14px; }
.hx-specs div:first-child { padding-inline-start: 0; } .hx-specs div:last-child { border: 0; }
.hx-specs dt { font: 500 .66rem var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mute); }
:lang(zh) .hx-specs dt, :lang(ja) .hx-specs dt, :lang(th) .hx-specs dt, :lang(ar) .hx-specs dt { font-family: var(--sans); letter-spacing: 0; font-size: .76rem; }
.hx-specs dd { margin: 4px 0 0; font: 600 .95rem/1.25 var(--sans); }
/* stage */
.stage { position: relative; background: rgba(255,255,255,.72); border: 1px solid var(--rule-2); box-shadow: var(--shadow); }
.stage-tabs { display: flex; border-bottom: 1px solid var(--rule-2); overflow-x: auto; scrollbar-width: none; }
.stage-tabs button { flex: 1; padding: 14px 12px; border: 0; border-inline-end: 1px solid var(--rule); background: transparent; cursor: pointer; font-weight: 650; font-size: .88rem; color: var(--mute); white-space: nowrap; position: relative; }
.stage-tabs button:last-child { border-inline-end: 0; }
.stage-tabs button i { font: 500 .66rem var(--mono); font-style: normal; color: var(--mute-2); margin-inline-end: 8px; }
.stage-tabs button[aria-selected=true] { color: var(--ink); background: #fff; }
.stage-tabs button[aria-selected=true]::after { content: ""; position: absolute; inset: auto 0 -1px; height: 3px; background: var(--cu); }
.stage-fig { position: relative; aspect-ratio: 4 / 3; margin: 0; }
.stage-slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .5s var(--ease), visibility .5s; }
.stage-slide.on { opacity: 1; visibility: visible; }
.stage-slide img { position: absolute; inset: 6% 10% 6% 10%; width: 80%; height: 88%; object-fit: contain; mix-blend-mode: multiply; transform: scale(.97); transition: transform .9s var(--ease); }
.stage-slide.on img { transform: none; }
.pin { position: absolute; left: var(--x); top: var(--y); z-index: 3; }
[dir=rtl] .pin { left: auto; right: calc(100% - var(--x)); }
.pin-dot { position: absolute; width: 12px; height: 12px; margin: -6px; border-radius: 50%; background: var(--cu); box-shadow: 0 0 0 4px rgba(192,86,27,.18); }
.pin-dot::after { content: ""; position: absolute; inset: -8px; border-radius: 50%; border: 1px solid var(--cu); animation: ping 2.4s var(--ease) infinite; }
.pin-line { position: absolute; top: 0; height: 1px; width: var(--len, 70px); background: var(--ink); transform-origin: 0 0; }
.pin.r .pin-line { left: 0; } .pin.l .pin-line { right: 0; transform-origin: 100% 0; }
.pin-label { position: absolute; top: -14px; white-space: nowrap; background: #fff; border: 1px solid var(--ink); padding: 5px 9px; font-size: .72rem; line-height: 1.2; box-shadow: 3px 3px 0 var(--cu-soft); }
.pin.r .pin-label { left: var(--len, 70px); } .pin.l .pin-label { right: var(--len, 70px); }
.pin-label small { display: block; font: 500 .6rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--mute); }
.pin-label b { font: 600 .78rem var(--mono); }
.stage-slide .pin { opacity: 0; transform: translateY(6px); transition: .4s var(--ease); }
.stage-slide.on .pin { opacity: 1; transform: none; }
.stage-slide.on .pin:nth-of-type(2) { transition-delay: .12s; } .stage-slide.on .pin:nth-of-type(3) { transition-delay: .24s; } .stage-slide.on .pin:nth-of-type(4) { transition-delay: .36s; }
.stage-foot { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 16px; padding: 12px 16px; border-top: 1px solid var(--rule-2); background: #fff; }
.stage-wave { height: 38px; width: 100%; }
.stage-foot a { font: 600 .74rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--cu); display: inline-flex; gap: 8px; align-items: center; white-space: nowrap; }
.stage-note { position: absolute; inset-inline-start: 12px; top: 60px; font: 500 .62rem var(--mono); letter-spacing: .1em; color: var(--mute-2); text-transform: uppercase; z-index: 2; }
.stage-scale { position: absolute; inset-inline-end: 14px; bottom: 74px; z-index: 2; display: flex; align-items: center; gap: 6px; font: 500 .6rem var(--mono); color: var(--mute); }
.stage-scale i { width: 60px; height: 6px; border: 1px solid var(--ink); border-top: 0; }
/* ticker */
.ticker { border-top: 1px solid var(--rule); background: #fff; overflow: hidden; white-space: nowrap; }
.ticker-track { display: inline-flex; gap: 0; animation: ticker 60s linear infinite; padding-block: 14px; }
.ticker span { font: 500 .78rem var(--mono); letter-spacing: .06em; color: var(--ink-2); padding-inline: 22px; border-inline-end: 1px solid var(--rule); }
.ticker span b { color: var(--cu); font-weight: 600; }
@keyframes ticker { to { transform: translateX(-50%); } }
[dir=rtl] .ticker-track { animation-name: ticker-rtl; } @keyframes ticker-rtl { to { transform: translateX(50%); } }
@keyframes ping { 0% { transform: scale(.6); opacity: 1; } 80%, 100% { transform: scale(1.8); opacity: 0; } }

/* ── stats strip ────────────────────────────────────────────────────────── */
.stats { background: #fff; border-bottom: 1px solid var(--rule); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: clamp(24px, 3vw, 40px) clamp(14px, 2vw, 28px); border-inline-end: 1px solid var(--rule); position: relative; }
.stat:first-child { padding-inline-start: 0; } .stat:last-child { border: 0; }
.stat::before { content: ""; position: absolute; top: 0; inset-inline-start: 0; width: 28px; height: 3px; background: var(--cu); }
.stat:not(:first-child)::before { inset-inline-start: clamp(14px, 2vw, 28px); }
.stat-v { display: block; font: 800 clamp(2.2rem, 4.4vw, 3.8rem)/1 var(--sans); font-stretch: 68%; letter-spacing: -.01em; margin-bottom: 8px; }
.stat span { color: var(--mute); font-size: .9rem; }

/* ── catalog index ──────────────────────────────────────────────────────── */
.cx-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(24px, 4vw, 64px); align-items: start; }
.cx-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--ink); counter-reset: cx; }
.cx-item a { display: grid; grid-template-columns: 3.2em minmax(0, 1fr) auto; gap: 4px 18px; align-items: center; padding: 20px 6px; border-bottom: 1px solid var(--rule); position: relative; transition: background .25s, padding .3s var(--ease); }
.cx-item a::before { content: ""; position: absolute; inset-block: -1px; inset-inline-start: 0; width: 3px; background: var(--cu); transform: scaleY(0); transition: transform .3s var(--ease); }
.cx-no { font: 500 .78rem var(--mono); color: var(--mute-2); grid-row: span 2; }
.cx-item b { font: 750 clamp(1.25rem, 2.1vw, 1.8rem)/1.1 var(--sans); font-stretch: 78%; }
:lang(zh) .cx-item b, :lang(ja) .cx-item b { font-stretch: 100%; }
.cx-item small { grid-column: 2; color: var(--mute); font-size: .88rem; max-height: 0; overflow: hidden; opacity: 0; transition: max-height .35s var(--ease), opacity .3s; }
.cx-cnt { grid-row: 1 / span 2; grid-column: 3; display: flex; align-items: center; gap: 10px; font: 500 .74rem var(--mono); color: var(--mute); }
.cx-cnt .ico { width: 20px; height: 20px; color: var(--ink); transition: transform .25s; } [dir=rtl] .cx-cnt .ico { transform: scaleX(-1); }
.cx-item.on a, .cx-item a:hover { background: #fff; padding-inline-start: 18px; }
.cx-item.on a::before, .cx-item a:hover::before { transform: scaleY(1); }
.cx-item.on small { max-height: 4em; opacity: 1; }
.cx-item.on .cx-cnt .ico { transform: translateX(4px); color: var(--cu); }
.cx-thumb { display: none; }
.cx-preview { position: sticky; top: calc(var(--bar-h) + 24px); }
.cx-view { position: relative; aspect-ratio: 4 / 3.3; background: #fff; border: 1px solid var(--rule-2); }
.cx-view figure { position: absolute; inset: 0; margin: 0; opacity: 0; transition: opacity .45s var(--ease); }
.cx-view figure.on { opacity: 1; }
.cx-view img { width: 100%; height: 100%; object-fit: contain; padding: 6%; mix-blend-mode: multiply; }
.cx-cap { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; font: 500 .74rem var(--mono); color: var(--mute); border-bottom: 1px solid var(--rule); }
.cx-cap b { color: var(--ink); font-weight: 600; }

/* ── product cards ──────────────────────────────────────────────────────── */
.pgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 0; border-top: 1px solid var(--rule-2); border-inline-start: 1px solid var(--rule-2); }
.pgrid.three { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.pc { display: flex; flex-direction: column; background: #fff; border-inline-end: 1px solid var(--rule-2); border-bottom: 1px solid var(--rule-2); position: relative; transition: background .25s; }
.pc:hover { background: #fcfcfa; }
.pc-img { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: #fff; border-bottom: 1px solid var(--rule); }
.pc-img img { width: 100%; height: 100%; object-fit: contain; padding: 5%; mix-blend-mode: multiply; transition: transform .6s var(--ease); }
.pc:hover .pc-img img { transform: scale(1.05); }
.pc-model { position: absolute; top: 10px; inset-inline-start: 10px; font: 600 .66rem var(--mono); letter-spacing: .06em; padding: 4px 7px; background: var(--ink); color: #fff; }
.badge { position: absolute; top: 10px; inset-inline-end: 10px; font: 600 .62rem var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 4px 7px; background: var(--cu); color: #fff; font-style: normal; }
.badge.own { background: var(--ok); }
.pc-body { display: flex; flex-direction: column; gap: 6px; padding: 16px 18px 18px; flex: 1; }
.pc-cat { font: 500 .66rem var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--sig); }
:lang(zh) .pc-cat, :lang(ja) .pc-cat, :lang(th) .pc-cat, :lang(ar) .pc-cat { font-family: var(--sans); letter-spacing: 0; font-size: .76rem; }
.pc b { font: 700 1.12rem/1.2 var(--sans); font-stretch: 85%; }
.pc-tag { color: var(--mute); font-size: .86rem; line-height: 1.45; }
.pc-spec { margin: 6px 0 4px; border-top: 1px dashed var(--rule-2); }
.pc-spec div { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px dashed var(--rule); font-size: .8rem; }
.pc-spec dt { color: var(--mute); } .pc-spec dd { margin: 0; font: 600 .78rem var(--mono); text-align: end; }
.pc-go { margin-top: auto; padding-top: 8px; display: inline-flex; gap: 8px; align-items: center; font: 600 .72rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--cu); }
.rail { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(280px, 300px); overflow-x: auto; scroll-snap-type: x mandatory; border-inline-start: 1px solid var(--rule-2); border-top: 1px solid var(--rule-2); scrollbar-width: thin; }
.rail .pc { scroll-snap-align: start; }
.rail-nav { display: flex; align-items: center; gap: 8px; margin-top: 22px; }
.rail-nav button { width: 46px; height: 46px; border: 1.5px solid var(--ink); background: transparent; cursor: pointer; display: grid; place-items: center; }
.rail-nav button:hover { background: var(--ink); color: #fff; }
[dir=rtl] .rail-nav button .ico { transform: scaleX(-1); }
.rail-nav .btn { margin-inline-start: auto; }

/* ── single-line diagram ────────────────────────────────────────────────── */
.sld { background: #fff; border: 1px solid var(--rule-2); }
.sld-tabs { display: flex; flex-wrap: wrap; gap: 0; border-bottom: 1px solid var(--rule-2); }
.sld-tabs button { padding: 14px 22px; border: 0; border-inline-end: 1px solid var(--rule); background: transparent; cursor: pointer; font-weight: 650; color: var(--mute); position: relative; }
.sld-tabs button[aria-selected=true] { color: var(--ink); background: var(--paper); }
.sld-tabs button[aria-selected=true]::after { content: ""; position: absolute; inset: auto 0 -1px; height: 3px; background: var(--cu); }
.sld-scroll { overflow-x: auto; }
.sld-stage { position: relative; min-width: 760px; padding: 26px 20px 30px; }
.sld-svg { width: 100%; height: auto; }
.sld-svg .bus { stroke: var(--ink); stroke-width: 2.5; fill: none; }
.sld-svg .flow { stroke: var(--cu); stroke-width: 2.5; fill: none; stroke-dasharray: 2 14; stroke-linecap: round; animation: flow 1s linear infinite; }
[dir=rtl] .sld-svg { transform: scaleX(-1); } [dir=rtl] .sld-svg text { transform: scaleX(-1); transform-box: fill-box; transform-origin: center; }
@keyframes flow { to { stroke-dashoffset: -16; } }
.sld-svg .sym { stroke: var(--ink); stroke-width: 2; fill: #fff; }
.sld-svg .sym-fill { fill: var(--ink); }
.sld-svg .volt { font: 600 13px var(--mono); fill: var(--sig); text-anchor: middle; }
.sld-svg .tick { stroke: var(--rule-2); stroke-width: 1; }
.sld-nodes { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-top: 6px; }
.sld-node { text-align: center; padding: 12px 8px 0; border-top: 1px dashed var(--rule-2); }
.sld-node i { display: block; font: 500 .66rem var(--mono); font-style: normal; color: var(--mute-2); margin-bottom: 4px; }
.sld-node b { display: block; font-size: .92rem; line-height: 1.25; }
.sld-node a { display: inline-block; margin-top: 6px; font-size: .78rem; color: var(--cu); line-height: 1.3; border-bottom: 1px solid transparent; }
.sld-node a:hover { border-bottom-color: var(--cu); }
.sld-node a[hidden] { display: none; }
.sld-foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; align-items: center; padding: 16px 20px; border-top: 1px solid var(--rule-2); background: var(--paper); }
.sld-desc { margin: 0; color: var(--ink-2); max-width: 78ch; font-size: .96rem; transition: opacity .25s; }
.sld-cable { display: inline-flex; gap: 8px; align-items: center; font-size: .82rem; color: var(--mute); }
.sld-cable .ico { color: var(--cu); } .sld-cable a { color: var(--ink); font-weight: 600; }

/* ── sizing instrument ──────────────────────────────────────────────────── */
.cfg { background: var(--ink); color: #e3e9ed; }
.cfg .kicker { color: #6fd0e4; } .cfg .kicker::after { background: linear-gradient(90deg, rgba(255,255,255,.25), transparent); }
.cfg .sec-head h2 { color: #fff; } .cfg .sec-head .lead { color: #9fb0bb; }
.cfg-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0; border: 1px solid rgba(255,255,255,.18); }
.cfg-form { padding: clamp(22px, 3vw, 40px); display: grid; gap: 30px; border-inline-end: 1px solid rgba(255,255,255,.18);
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 24px 24px; }
.cfg-field { display: grid; gap: 12px; }
.cfg-label { display: flex; align-items: baseline; gap: 10px; font-weight: 600; color: #cfd8de; }
.cfg-label output { margin-inline-start: auto; font: 600 1.6rem var(--mono); color: #fff; }
.cfg-label small { font: 500 .78rem var(--mono); color: #8fa1ad; min-width: 2.4em; }
.cfg input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 24px; background: transparent; cursor: pointer;
  --p: 50%; background-image: linear-gradient(90deg, var(--cu-2) var(--p), rgba(255,255,255,.18) var(--p)), repeating-linear-gradient(90deg, rgba(255,255,255,.35) 0 1px, transparent 1px 10%);
  background-size: 100% 3px, 100% 10px; background-position: 0 50%, 0 100%; background-repeat: no-repeat; }
[dir=rtl] .cfg input[type=range] { background-image: linear-gradient(270deg, var(--cu-2) var(--p), rgba(255,255,255,.18) var(--p)), repeating-linear-gradient(90deg, rgba(255,255,255,.35) 0 1px, transparent 1px 10%); }
.cfg input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 24px; background: #fff; border: 3px solid var(--cu-2); }
.cfg input[type=range]::-moz-range-thumb { width: 14px; height: 24px; border-radius: 0; background: #fff; border: 3px solid var(--cu-2); }
.cfg-row { display: flex; flex-wrap: wrap; gap: 18px; align-items: end; justify-content: space-between; }
.seg { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; }
.seg legend { width: 100%; font-weight: 600; color: #cfd8de; margin-bottom: 10px; padding: 0; }
.seg label { cursor: pointer; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: inline-block; padding: 10px 20px; border: 1px solid rgba(255,255,255,.3); font: 600 .78rem var(--mono); letter-spacing: .06em; text-transform: uppercase; color: #cfd8de; margin-inline-end: -1px; }
.seg input:checked + span { background: var(--cu-2); border-color: var(--cu-2); color: #fff; }
.seg input:focus-visible + span { outline: 2px solid #fff; outline-offset: 2px; }
.cfg-sel { display: grid; gap: 10px; font-weight: 600; color: #cfd8de; }
.cfg-sel select { padding: 10px 36px 10px 14px; border: 1px solid rgba(255,255,255,.3); background: transparent; color: #fff; font: 600 .95rem var(--mono); border-radius: 0; }
.cfg-sel option { color: var(--ink); }
.cfg-result { padding: clamp(22px, 3vw, 40px); display: grid; gap: 18px; align-content: start; }
.cfg-k { font: 500 .7rem var(--mono); letter-spacing: .14em; text-transform: uppercase; color: #8fa1ad; margin: 0; }
.gauge { display: grid; grid-template-columns: 200px 1fr; gap: 24px; align-items: center; }
.gauge svg { width: 200px; height: auto; }
.gauge .g-track { stroke: rgba(255,255,255,.14); stroke-width: 14; fill: none; }
.gauge .g-ok { stroke: var(--sig); stroke-width: 14; fill: none; opacity: .75; }
.gauge .g-hi { stroke: var(--cu-2); stroke-width: 14; fill: none; }
.gauge .g-tick { stroke: rgba(255,255,255,.45); stroke-width: 1.5; }
.gauge .g-needle { stroke: #fff; stroke-width: 3; stroke-linecap: round; transform-origin: 100px 100px; transition: transform .7s var(--ease); }
.gauge .g-hub { fill: #fff; }
.gauge text { font: 600 11px var(--mono); fill: #8fa1ad; }
.cfg-big { display: flex; align-items: baseline; gap: 10px; margin: 0; }
.cfg-big b { font: 800 clamp(3.2rem, 6vw, 5rem)/.9 var(--sans); font-stretch: 65%; color: #fff; }
.cfg-big span { font: 600 1.1rem var(--mono); color: var(--cu-2); }
.cfg-load { font: 500 .82rem var(--mono); color: #9fb0bb; margin: 6px 0 0; } .cfg-load b { color: #fff; }
.cfg-cur { display: flex; gap: 10px; align-items: center; padding: 12px 14px; border: 1px dashed rgba(255,255,255,.25); margin: 0; }
.cfg-cur .ico { color: var(--cu-2); width: 20px; height: 20px; }
.cfg-cur small { display: block; font-size: .72rem; color: #8fa1ad; } .cfg-cur b { font: 600 .86rem var(--mono); color: #fff; }
.cfg-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid rgba(255,255,255,.18); }
.cfg-list li { display: grid; grid-template-columns: 2.4em 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.12); align-items: start; }
.cfg-list li > b { font: 600 .9rem var(--mono); color: var(--cu-2); }
.cfg-list li span { display: grid; gap: 2px; } .cfg-list a { color: #fff; font-weight: 600; } .cfg-list a:hover { color: var(--cu-2); }
.cfg-list small { color: #8fa1ad; font-size: .8rem; }
.cfg-note { font-size: .78rem; color: #8193a0; margin: 0; }
.cfg .btn-primary { justify-self: start; } .cfg .btn::before { background: #fff; } .cfg .btn:hover { color: var(--ink); border-color: #fff; }

/* ── factory film strip ─────────────────────────────────────────────────── */
.film { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(300px, 34%); gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 14px; scrollbar-width: thin; }
.film figure { margin: 0; scroll-snap-align: start; background: #fff; border: 1px solid var(--rule-2); }
.film img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; filter: saturate(.92); transition: filter .4s; }
.film figure:hover img { filter: none; }
.film figcaption { display: flex; gap: 12px; align-items: baseline; padding: 12px 14px; font-size: .88rem; font-weight: 600; border-top: 1px solid var(--rule); }
.film figcaption i { font: 500 .7rem var(--mono); font-style: normal; color: var(--cu); }

/* ── quality ────────────────────────────────────────────────────────────── */
.q-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 80px); align-items: start; }
.q-table { width: 100%; border-collapse: collapse; margin-bottom: 26px; }
.q-table caption { text-align: start; font: 600 .74rem var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--sig); padding-bottom: 10px; }
.q-table td, .q-table th { padding: 11px 8px; border-bottom: 1px solid var(--rule); text-align: start; font-size: .92rem; }
.q-table tr:first-child td, .q-table tr:first-child th { border-top: 1.5px solid var(--ink); }
.q-table th { font: 500 .74rem var(--mono); color: var(--mute-2); width: 3em; }
.q-table td:last-child { text-align: end; font: 600 .72rem var(--mono); color: var(--ok); white-space: nowrap; }
.q-stds { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.q-stds li { font: 500 .72rem var(--mono); padding: 6px 10px; border: 1px solid var(--rule-2); background: #fff; }
.q-stacks { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.stack { position: relative; aspect-ratio: 7 / 9; }
.stack a { position: absolute; inset: 6% 12%; background: #fff; border: 1px solid var(--rule-2); padding: 8px; box-shadow: 0 18px 30px -20px rgba(15,28,40,.45); transition: transform .5s var(--ease); }
.stack a img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.stack a:nth-child(1) { transform: rotate(-7deg) translateX(-10%); } .stack a:nth-child(2) { transform: rotate(5deg) translateX(10%); } .stack a:nth-child(3) { transform: none; }
.stack:hover a:nth-child(1) { transform: rotate(-12deg) translate(-30%, 2%); } .stack:hover a:nth-child(2) { transform: rotate(10deg) translate(30%, 2%); } .stack:hover a:nth-child(3) { transform: translateY(-4%); }
.stack a:hover { z-index: 3; }
.stack-cap { text-align: center; font: 600 .74rem var(--mono); letter-spacing: .08em; text-transform: uppercase; margin-top: 12px; }

/* ── deliverables ───────────────────────────────────────────────────────── */
.offer-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1.5px solid var(--ink); }
.offer { padding: 26px 22px 24px; border-inline-end: 1px solid var(--rule); display: flex; flex-direction: column; gap: 10px; }
.offer:last-child { border-inline-end: 0; }
.offer .n { font: 800 3rem/1 var(--sans); font-stretch: 62%; color: transparent; -webkit-text-stroke: 1.2px var(--cu); }
.offer b { font: 700 1.15rem/1.2 var(--sans); font-stretch: 85%; }
.offer p { color: var(--mute); font-size: .9rem; margin: 0; flex: 1; }
.offer a { font: 600 .72rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--cu); display: inline-flex; gap: 8px; align-items: center; }

/* ── cabling with cross-section ─────────────────────────────────────────── */
.cab-grid { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); gap: clamp(28px, 5vw, 80px); align-items: center; }
.xsec { position: relative; aspect-ratio: 1; max-width: 520px; margin-inline: auto; width: 100%; }
.xsec svg { width: 100%; height: 100%; overflow: visible; }
.xsec .ring { transition: transform .8s var(--ease); transform-origin: 260px 260px; }
.xsec:hover .ring.r1 { transform: scale(1.04); } .xsec:hover .ring.r2 { transform: scale(1.02); }
.xsec text { font: 600 12px var(--mono); fill: var(--ink); }
.xsec .lbl-line { stroke: var(--ink); stroke-width: 1; }
.xsec-img { position: absolute; inset-inline-end: -4%; bottom: -6%; width: 46%; border: 6px solid #fff; box-shadow: var(--shadow); }
.cab-points { list-style: none; padding: 0; margin: 0 0 28px; border-top: 1.5px solid var(--ink); }
.cab-points li { display: grid; grid-template-columns: 40px 1fr; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--rule); }
.cab-points .ico { width: 28px; height: 28px; color: var(--cu); margin-top: 2px; }
.cab-points b { display: block; font-size: 1rem; margin-bottom: 2px; } .cab-points p { margin: 0; color: var(--mute); font-size: .9rem; }
.cab-ctas { display: flex; flex-wrap: wrap; gap: 12px; }

/* ── industries accordion ───────────────────────────────────────────────── */
.ind { display: flex; gap: 8px; height: 520px; }
.ind-p { position: relative; flex: 1; min-width: 0; overflow: hidden; background: var(--ink); color: #fff; transition: flex .6s var(--ease); isolation: isolate; }
.ind-p img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .8s var(--ease); }
.ind-p::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(0deg, rgba(10,20,30,.92) 0%, rgba(10,20,30,.35) 55%, rgba(10,20,30,.1) 100%); }
.ind-p:hover, .ind-p:focus-within, .ind-p.on { flex: 3.2; }
.ind-p:hover img { transform: scale(1.04); }
.ind-no { position: absolute; top: 18px; inset-inline-start: 18px; font: 500 .74rem var(--mono); color: rgba(255,255,255,.8); }
.ind-body { position: absolute; inset: auto 0 0; padding: 22px; }
.ind-body h3 { font-size: clamp(1.2rem, 1.8vw, 1.7rem); font-stretch: 80%; color: #fff; margin-bottom: 8px; }
.ind-more { max-height: 0; opacity: 0; overflow: hidden; transition: max-height .5s var(--ease), opacity .4s; }
.ind-p:hover .ind-more, .ind-p:focus-within .ind-more, .ind-p.on .ind-more { max-height: 260px; opacity: 1; }
.ind-more p { color: rgba(255,255,255,.82); font-size: .9rem; margin-bottom: 10px; max-width: 46ch; }
.ind-more ul { list-style: none; padding: 0; margin: 0 0 14px; display: flex; flex-wrap: wrap; gap: 6px; }
.ind-more li { font: 500 .7rem var(--mono); padding: 4px 8px; border: 1px solid rgba(255,255,255,.35); }
.ind-more .go { font: 600 .72rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--cu-2); display: inline-flex; gap: 8px; align-items: center; }

/* ── process wire ───────────────────────────────────────────────────────── */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, 1fr); position: relative; }
.steps::before { content: ""; position: absolute; top: 23px; inset-inline: 0; height: 2px; background: var(--ink); }
.step { position: relative; padding-inline-end: 18px; }
.step-n { position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 10px; background: var(--paper); padding-inline-end: 12px; margin-bottom: 18px; }
.step-n .ico { width: 46px; height: 46px; padding: 11px; background: #fff; border: 2px solid var(--ink); border-radius: 50%; color: var(--cu); }
.step-n i { font: 600 .74rem var(--mono); font-style: normal; color: var(--mute); }
.step b { display: block; font: 700 1.15rem var(--sans); font-stretch: 85%; margin-bottom: 6px; }
.step p { color: var(--mute); font-size: .9rem; margin: 0; }

/* ── FAQ ────────────────────────────────────────────────────────────────── */
.faq-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(28px, 5vw, 80px); align-items: start; }
.faq-grid .sec-head { grid-template-columns: 1fr; position: sticky; top: calc(var(--bar-h) + 30px); }
.faq-list { border-top: 1.5px solid var(--ink); }
.qa { border-bottom: 1px solid var(--rule); }
.qa summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 1fr 28px; gap: 16px; align-items: center; padding: 20px 0; font-weight: 650; font-size: 1.04rem; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary .chev { display: none; }
.qa summary::after { content: "+"; font: 400 1.6rem/1 var(--mono); color: var(--cu); text-align: center; transition: transform .3s var(--ease); }
.qa[open] summary::after { transform: rotate(45deg); }
.qa p { color: var(--ink-2); margin: 0; padding: 0 44px 22px 0; }
[dir=rtl] .qa p { padding: 0 0 22px 44px; }

/* ── news bulletin ──────────────────────────────────────────────────────── */
.news-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 0; border-top: 1.5px solid var(--ink); }
.ncard { display: grid; grid-template-rows: auto 1fr; border-bottom: 1px solid var(--rule); border-inline-end: 1px solid var(--rule); background: transparent; transition: background .25s; }
.ncard:hover { background: #fff; }
.ncard-img { aspect-ratio: 16 / 9; overflow: hidden; margin: 16px 16px 0; background: var(--paper-2); }
.ncard-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.ncard:hover .ncard-img img { transform: scale(1.04); }
.ncard-body { display: flex; flex-direction: column; gap: 8px; padding: 14px 16px 22px; }
.ncard time { font: 500 .72rem var(--mono); color: var(--sig); letter-spacing: .06em; }
.ncard b { font: 700 1.08rem/1.3 var(--sans); }
.ncard small { color: var(--mute); font-size: .88rem; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.center-row { display: flex; justify-content: center; margin-top: 32px; }
.pager { display: flex; justify-content: space-between; align-items: center; margin-top: 36px; font: 500 .82rem var(--mono); }
.pager a { display: inline-flex; gap: 8px; align-items: center; padding: 10px 16px; border: 1.5px solid var(--ink); } .pager a:hover { background: var(--ink); color: #fff; }
.empty { text-align: center; color: var(--mute); padding: 60px 0; }

/* ── CTA band ───────────────────────────────────────────────────────────── */
.cta-band { background: var(--ink); color: #fff; position: relative; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 32px 32px; }
.cta-band::after { content: ""; position: absolute; inset-block: 0; inset-inline-end: -10%; width: 50%; background: radial-gradient(closest-side, rgba(219,115,49,.35), transparent); }
.cta-inner { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.4fr) auto; gap: 30px; align-items: end; padding-block: clamp(56px, 7vw, 96px); }
.cta-band h2 { font-size: clamp(2rem, 4.4vw, 3.8rem); font-stretch: 72%; max-width: 20ch; margin-bottom: 14px; }
.cta-band p { color: #aebcc6; max-width: 56ch; margin: 0; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.cta-band .btn::before { background: #fff; } .cta-band .btn:hover { color: var(--ink); border-color: #fff; }

/* ── page hero (inner pages) ────────────────────────────────────────────── */
.phero { padding-top: var(--header-h); border-bottom: 1px solid var(--rule); }
.phero-inner { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(24px, 4vw, 64px); align-items: end; padding-block: clamp(36px, 5vw, 70px); }
.phero-inner.solo { grid-template-columns: 1fr; }
.phero h1 { font-size: clamp(2.3rem, 5vw, 4.6rem); font-stretch: 72%; font-weight: 800; line-height: .98; margin-bottom: 18px; max-width: 18ch; }
.phero .lead { margin: 0; }
.phero-media { background: #fff; border: 1px solid var(--rule-2); aspect-ratio: 16 / 10; overflow: hidden; }
.phero-media img { width: 100%; height: 100%; object-fit: cover; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; padding: 0; margin: 0 0 22px; font: 500 .74rem var(--mono); color: var(--mute); letter-spacing: .02em; }
.crumbs li + li::before { content: "/"; margin-inline-end: 6px; color: var(--rule-2); }
.crumbs a:hover { color: var(--cu); }
.crumbs [aria-current] { color: var(--ink); }

/* ── product list ───────────────────────────────────────────────────────── */
.cat-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: clamp(24px, 3vw, 44px); align-items: start; }
.cat-side { position: sticky; top: calc(var(--bar-h) + 20px); border-top: 1.5px solid var(--ink); }
.cat-side h2 { font: 600 .72rem var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--sig); padding: 12px 0; }
.cat-side a { display: flex; justify-content: space-between; gap: 10px; padding: 10px 10px; border-bottom: 1px solid var(--rule); font-size: .92rem; color: var(--ink-2); }
.cat-side a small { font: 500 .72rem var(--mono); color: var(--mute-2); }
.cat-side a:hover { background: #fff; color: var(--ink); }
.cat-side a.on { background: var(--ink); color: #fff; } .cat-side a.on small { color: #c7d0d6; }
.cat-side details summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; padding: 12px 10px; font-weight: 700; border-bottom: 1px solid var(--rule); }
.cat-side details summary::-webkit-details-marker { display: none; }
.cat-side details summary .chev { width: 14px; transition: transform .25s; } .cat-side details[open] summary .chev { transform: rotate(180deg); }
.cat-side details a { padding-inline-start: 22px; }
.cat-side .top { font-weight: 700; }
.proj { color: var(--cu) !important; }
.proj-card { background: #fff; border: 1px solid var(--rule-2); padding: 28px; margin-bottom: 28px; }
.proj-card ul { list-style: none; padding: 0; margin: 0 0 20px; } .proj-card li { display: flex; gap: 10px; padding: 6px 0; }
.proj-card .ico { color: var(--cu); }
h2.rel { font-size: 1.4rem; margin-bottom: 16px; }

/* ── product detail ─────────────────────────────────────────────────────── */
.pd-hero { padding-top: calc(var(--header-h) + 24px); padding-bottom: clamp(30px, 4vw, 56px); border-bottom: 1px solid var(--rule); }
.pd-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(26px, 4vw, 64px); align-items: start; }
.pd-main { position: relative; background: #fff; border: 1px solid var(--rule-2); aspect-ratio: 4 / 3; }
.pd-main img { width: 100%; height: 100%; object-fit: contain; padding: 4%; mix-blend-mode: multiply; transition: opacity .2s; }
.pd-thumbs { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.pd-thumbs button { width: 84px; height: 64px; padding: 2px; border: 1px solid var(--rule-2); background: #fff; cursor: pointer; }
.pd-thumbs button.on { border: 2px solid var(--cu); }
.pd-thumbs img { width: 100%; height: 100%; object-fit: cover; }
.pd-cat { font: 500 .72rem var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--sig); }
:lang(zh) .pd-cat, :lang(ja) .pd-cat, :lang(th) .pd-cat, :lang(ar) .pd-cat { font-family: var(--sans); letter-spacing: 0; font-size: .85rem; }
.pd-info h1 { font-size: clamp(2rem, 3.6vw, 3.2rem); font-stretch: 76%; font-weight: 800; margin: 10px 0 14px; }
.pd-info .lead { font-size: 1.1rem; }
.pd-kpis { display: grid; grid-template-columns: repeat(3, 1fr); margin: 22px 0; border-block: 1.5px solid var(--ink); }
.pd-kpis div { display: flex; gap: 10px; align-items: center; padding: 14px 12px; border-inline-end: 1px solid var(--rule); }
.pd-kpis div:last-child { border: 0; }
.pd-kpis .ico { color: var(--cu); width: 20px; height: 20px; }
.pd-kpis dd { margin: 0; font: 600 .9rem var(--mono); }
.pd-models { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: .86rem; color: var(--mute); }
.pd-models code { font: 600 .78rem var(--mono); padding: 4px 8px; background: var(--ink); color: #fff; }
.pd-ctas { display: flex; flex-wrap: wrap; gap: 10px; margin: 22px 0; }
.cert-chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.cert-chips li { display: inline-flex; gap: 6px; align-items: center; font: 500 .72rem var(--mono); padding: 5px 9px; border: 1px solid var(--rule-2); background: #fff; }
.cert-chips .ico { color: var(--ok); width: 14px; height: 14px; }
.pd-body { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(24px, 4vw, 56px); align-items: start; }
.pd-features { position: sticky; top: calc(var(--bar-h) + 20px); border-top: 1.5px solid var(--ink); }
.pd-features h2, .pd-specs h2, .ds h2 { font: 600 .74rem var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--sig); padding: 12px 0; }
:lang(zh) :is(.pd-features, .pd-specs, .ds) h2, :lang(ja) :is(.pd-features, .pd-specs, .ds) h2 { font-family: var(--sans); letter-spacing: 0; font-size: .95rem; }
.pd-features ul { list-style: none; padding: 0; margin: 0; }
.pd-features li { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--rule); }
.pd-features .ico { color: var(--cu); margin-top: 3px; }
.spec-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--rule-2); }
.spec { width: 100%; border-collapse: collapse; font-size: .9rem; }
.spec caption { caption-side: top; }
.spec th, .spec td { padding: 10px 14px; text-align: start; border-bottom: 1px solid var(--rule); vertical-align: top; }
.spec thead th { background: var(--ink); color: #fff; font: 600 .74rem var(--mono); letter-spacing: .04em; white-space: nowrap; }
.spec tbody th { width: 34%; color: var(--mute); font-weight: 500; }
.spec td { font: 500 .84rem/1.5 var(--mono); }
.spec tbody tr:hover { background: #fbfbf8; }
.ds-table thead th { vertical-align: bottom; } .ds-table thead th small { display: block; color: var(--cu-2); font-size: .7rem; }
.ds-table thead th em { display: block; font-style: normal; color: #9fb0bb; font-size: .66rem; }
.ds-table tbody th, .ds-table td { white-space: nowrap; width: auto; font-family: var(--mono); font-size: .8rem; }
.ds-table tbody th { color: var(--ink); font-weight: 600; }
.ds-table tbody tr:nth-child(even) { background: var(--paper); }
.ds-note { font-size: .8rem; color: var(--mute); margin: 10px 0 0; }
.app-row { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.app-chip { display: grid; grid-template-columns: 110px 1fr; background: #fff; border: 1px solid var(--rule-2); }
.app-chip img { width: 110px; height: 100%; min-height: 90px; object-fit: cover; }
.app-chip span { padding: 14px; } .app-chip b { display: block; font-size: .96rem; } .app-chip small { color: var(--mute); font-size: .82rem; }
.inq-band { display: grid; grid-template-columns: minmax(0, .7fr) minmax(0, 1.3fr); gap: 0; background: #fff; border: 1px solid var(--rule-2); }
.inq-side { padding: clamp(24px, 3vw, 40px); background: var(--ink); color: #fff; }
.inq-side h2 { font-size: clamp(1.6rem, 2.6vw, 2.4rem); font-stretch: 76%; color: #fff; margin-bottom: 12px; }
.inq-side .lead { color: #fff; font-size: 1rem; } .inq-side .muted { color: #9fb0bb; }
.inq-ico { width: 64px; height: 64px; color: var(--cu-2); margin-top: 24px; }
.inq-band > form { padding: clamp(24px, 3vw, 40px); }

/* ── forms ──────────────────────────────────────────────────────────────── */
.inq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 18px; }
.field { display: grid; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.field > span { font: 500 .72rem var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--mute); }
:lang(zh) .field > span, :lang(ja) .field > span, :lang(th) .field > span, :lang(ar) .field > span { font-family: var(--sans); letter-spacing: 0; font-size: .85rem; text-transform: none; }
.field em { color: var(--cu); font-style: normal; }
.field input, .field select, .field textarea { width: 100%; padding: .75em .2em; border: 0; border-bottom: 1.5px solid var(--rule-2); background: transparent; border-radius: 0; transition: border-color .2s; }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink) 50%), linear-gradient(135deg, var(--ink) 50%, transparent 50%); background-position: calc(100% - 12px) 55%, calc(100% - 7px) 55%; background-size: 5px 5px; background-repeat: no-repeat; padding-inline-end: 24px; }
[dir=rtl] .field select { background-position: 12px 55%, 7px 55%; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-bottom-color: var(--cu); }
.field textarea { resize: vertical; min-height: 96px; border: 1.5px solid var(--rule-2); padding: .7em; }
.field textarea:focus { border-color: var(--cu); }
.field.invalid input { border-bottom-color: #c62828; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: .84rem; color: var(--mute); margin: 18px 0; }
.consent input { accent-color: var(--cu); margin-top: 4px; }
.inq-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.inq-status { margin: 0; font-size: .92rem; } .inq-status.ok { color: var(--ok); } .inq-status.err { color: #c62828; }
.inq.sent .inq-grid, .inq.sent .consent, .inq.sent button { display: none; }
.inq.sent .inq-status { padding: 18px; border: 1.5px solid var(--ok); background: #eef8f2; font-size: 1.02rem; }
.inq-alt { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 20px; padding-top: 18px; border-top: 1px dashed var(--rule-2); color: var(--mute); font-size: .9rem; }

/* ── drawer + floating ──────────────────────────────────────────────────── */
.fabs { position: fixed; z-index: 40; inset-inline-end: 18px; bottom: 18px; display: flex; flex-direction: column; gap: 8px; align-items: flex-end; transform: translateY(160%); transition: transform .4s var(--ease); }
.fabs.show { transform: none; }
.fab { display: inline-flex; align-items: center; gap: 10px; padding: 14px 18px; border: 0; background: var(--cu); color: #fff; cursor: pointer; font: 600 .76rem var(--mono); letter-spacing: .08em; text-transform: uppercase; box-shadow: 0 16px 30px -14px rgba(192,86,27,.8); }
.fab:hover { background: var(--ink); }
.fab-wa { background: #1f9d55; padding: 14px; box-shadow: 0 16px 30px -14px rgba(31,157,85,.8); }
.drawer { position: fixed; inset: 0; z-index: 90; }
.drawer[hidden] { display: none; }
.drawer-backdrop { position: absolute; inset: 0; background: rgba(15,28,40,.45); animation: fade .25s; }
.drawer-panel { position: absolute; inset-block: 0; inset-inline-end: 0; width: min(560px, 100%); overflow-y: auto; padding: 34px 30px; background: var(--paper); border-inline-start: 3px solid var(--cu); animation: slide .35s var(--ease); }
[dir=rtl] .drawer-panel { animation-name: slide-rtl; }
.drawer-panel h2 { font-size: 2rem; font-stretch: 76%; margin-bottom: 6px; }
.drawer-x { position: absolute; top: 16px; inset-inline-end: 16px; width: 42px; height: 42px; border: 1.5px solid var(--ink); background: transparent; display: grid; place-items: center; cursor: pointer; }
.drawer-x:hover { background: var(--ink); color: #fff; }
@keyframes fade { from { opacity: 0; } } @keyframes slide { from { transform: translateX(100%); } } @keyframes slide-rtl { from { transform: translateX(-100%); } }

/* ── live chat ──────────────────────────────────────────────────────────── */
.chat-tab { position: fixed; z-index: 45; inset-inline-end: 0; top: 50%; transform: translateY(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 16px 10px; border: 0; background: var(--ink); color: #fff; cursor: pointer; font: 600 .74rem var(--mono); letter-spacing: .1em; text-transform: uppercase; border-inline-start: 3px solid var(--cu); }
.chat-tab:hover { background: var(--cu); }
.chat-tab svg { width: 20px; height: 20px; }
.chat-tab span { writing-mode: vertical-rl; }
:lang(zh) .chat-tab span, :lang(ja) .chat-tab span { text-orientation: upright; font-family: var(--sans); letter-spacing: .12em; }
.chat-badge { position: absolute; top: -8px; inset-inline-start: -8px; min-width: 20px; height: 20px; padding: 0 5px; background: var(--cu); color: #fff; font: 600 .7rem/20px var(--mono); text-align: center; }
.chat-badge[hidden] { display: none; }
.chat-tab.is-open { opacity: 0; pointer-events: none; }
.chat { position: fixed; z-index: 85; inset-inline-end: 18px; bottom: 18px; width: min(380px, calc(100vw - 28px)); height: min(600px, calc(100vh - 36px)); display: flex; flex-direction: column; background: #fff; border: 1px solid var(--rule-2); box-shadow: 0 30px 60px -24px rgba(15,28,40,.45); animation: chat-in .28s var(--ease); }
.chat[hidden] { display: none; }
@keyframes chat-in { from { opacity: 0; transform: translateY(14px); } }
.chat-head { position: relative; padding: 18px 20px; background: var(--ink); color: #fff; border-bottom: 3px solid var(--cu); }
.chat-head h2 { font-size: 1.05rem; font-stretch: 85%; color: #fff; margin: 10px 0 4px; }
.chat-status { margin: 0; display: inline-flex; align-items: center; gap: 7px; font-size: .82rem; color: #b8c5ce; }
.chat-status i { width: 8px; height: 8px; border-radius: 50%; background: #4ade80; }
.chat-x { position: absolute; top: 12px; inset-inline-end: 12px; width: 32px; height: 32px; border: 1px solid rgba(255,255,255,.3); background: transparent; color: #fff; display: grid; place-items: center; cursor: pointer; }
.chat-x .ico { width: 16px; height: 16px; }
.chat-avatars { display: flex; } .chat-avatars span { width: 40px; height: 40px; display: grid; place-items: center; background: #fff; border: 2px solid var(--ink); }
.chat-avatars span + span { margin-inline-start: -8px; } .chat-avatars img { width: 26px; height: auto; }
.chat-av2 { background: var(--cu) !important; color: #fff; } .chat-av2 svg { width: 20px; height: 20px; }
.chat-log { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 10px; background: var(--paper); }
.chat-msg { max-width: 82%; padding: 10px 13px; font-size: .92rem; line-height: 1.5; white-space: pre-wrap; overflow-wrap: anywhere; }
.chat-msg.agent { align-self: flex-start; background: #fff; border: 1px solid var(--rule); }
.chat-msg.visitor { align-self: flex-end; background: var(--ink); color: #fff; }
.chat-msg.note { align-self: center; max-width: 92%; background: #eef8f2; color: var(--ok); font-size: .82rem; text-align: center; }
.chat-msg.pending { opacity: .6; } .chat-msg.failed { background: #fde8e8; color: #b42318; }
.chat-gate { padding: 16px; display: grid; gap: 10px; border-top: 1px solid var(--rule); }
.chat-gate h3 { font-size: .98rem; font-stretch: 90%; }
.chat-gate input { padding: 11px 12px; border: 1.5px solid var(--rule-2); background: #fff; }
.chat-gate input:focus { outline: none; border-color: var(--cu); }
.chat-err { margin: 0; color: #c62828; font-size: .84rem; }
.chat-input { display: flex; gap: 8px; padding: 12px; border-top: 1px solid var(--rule); }
.chat-input[hidden], .chat-gate[hidden] { display: none; }
.chat-input textarea { flex: 1; resize: none; padding: 10px 12px; border: 1.5px solid var(--rule-2); max-height: 120px; }
.chat-input textarea:focus { outline: none; border-color: var(--cu); }
.chat-input button { width: 44px; border: 0; background: var(--cu); color: #fff; cursor: pointer; display: grid; place-items: center; }

/* ── footer ─────────────────────────────────────────────────────────────── */
.site-footer { background: #fff; border-top: 1px solid var(--rule); position: relative; overflow: hidden; }
.footer-top { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 40px; padding-block: clamp(48px, 6vw, 80px) 36px; }
.footer-brand p { color: var(--mute); max-width: 34ch; margin-top: 16px; }
.footer-company { font: 500 .74rem var(--mono); color: var(--ink-2) !important; }
.footer-cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; }
.footer-cols h3 { font: 600 .72rem var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--sig); margin-bottom: 14px; padding-bottom: 10px; border-bottom: 1.5px solid var(--ink); }
.footer-cols ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: .9rem; color: var(--ink-2); }
.footer-cols a:hover { color: var(--cu); }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; } .footer-contact .ico { color: var(--cu); margin-top: 3px; }
.footer-langs { display: flex; flex-wrap: wrap; gap: 6px 16px; align-items: center; padding: 18px 0; border-top: 1px solid var(--rule); font-size: .82rem; color: var(--mute); }
.footer-langs a[aria-current] { color: var(--ink); font-weight: 700; } .footer-langs a:hover { color: var(--cu); }
.footer-langs .ico { color: var(--sig); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; padding: 16px 0 22px; border-top: 1px solid var(--rule); font: 500 .74rem var(--mono); color: var(--mute); }
.footer-word { font: 900 clamp(4rem, 15vw, 15rem)/.8 var(--sans); font-stretch: 62%; letter-spacing: -.02em; color: transparent; -webkit-text-stroke: 1px var(--rule-2); text-align: center; white-space: nowrap; margin-bottom: -.12em; user-select: none; }
.footer-glow { display: none; }

/* ── about / solutions / contact / misc ─────────────────────────────────── */
.about-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1.5px solid var(--ink); }
.about-block { padding: 24px 22px; border-inline-end: 1px solid var(--rule); } .about-block:last-child { border: 0; }
.about-n { font: 800 2.8rem/1 var(--sans); font-stretch: 62%; color: transparent; -webkit-text-stroke: 1.2px var(--cu); display: block; margin-bottom: 14px; }
.about-block h2 { font-size: 1.35rem; font-stretch: 82%; margin-bottom: 10px; } .about-block p { color: var(--mute); margin: 0; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 80px); align-items: center; }
.split-media { background: #fff; border: 1px solid var(--rule-2); padding: 8px; } .split-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.split h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); font-stretch: 78%; margin-bottom: 20px; }
.values { list-style: none; padding: 0; margin: 0; border-top: 1.5px solid var(--ink); }
.values li { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--rule); font-size: 1.02rem; } .values .ico { color: var(--cu); margin-top: 4px; }
.sol-intro { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: clamp(26px, 4vw, 64px); align-items: start; }
.lead.big { font-size: clamp(1.15rem, 1.6vw, 1.45rem); color: var(--ink); max-width: none; }
.sol-points { list-style: none; padding: 0; margin: 0; border-top: 1.5px solid var(--ink); }
.sol-points li { display: flex; gap: 14px; align-items: center; padding: 16px 0; border-bottom: 1px solid var(--rule); }
.sol-points .ico { width: 36px; height: 36px; padding: 8px; border: 1.5px solid var(--ink); color: var(--cu); }
.contact-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(24px, 4vw, 56px); align-items: start; }
.contact-cards { display: grid; gap: 0; border-top: 1.5px solid var(--ink); }
.ccard { display: flex; gap: 14px; align-items: center; padding: 18px 4px; border-bottom: 1px solid var(--rule); }
.ccard .ico { width: 38px; height: 38px; padding: 9px; background: var(--ink); color: #fff; }
.ccard small { display: block; font: 500 .7rem var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--mute); } .ccard b { font-size: 1rem; overflow-wrap: anywhere; }
a.ccard:hover b { color: var(--cu); }
.contact-form { background: #fff; border: 1px solid var(--rule-2); padding: clamp(22px, 3vw, 40px); }
.contact-form h2 { font-size: 1.8rem; font-stretch: 78%; margin-bottom: 4px; }
.nf { min-height: 80vh; display: grid; place-items: center; text-align: center; padding-top: var(--header-h); }
.nf-code { font: 900 clamp(7rem, 22vw, 15rem)/1 var(--sans); font-stretch: 62%; color: transparent; -webkit-text-stroke: 2px var(--cu); margin: 0; }
.nf .lead { margin-inline: auto; margin-bottom: 26px; }
.h-sm { font-size: 1.5rem; font-stretch: 80%; margin-bottom: 18px; }

/* ── article ────────────────────────────────────────────────────────────── */
.art-head { padding: calc(var(--header-h) + 36px) 0 26px; }
.art-meta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; font: 500 .76rem var(--mono); color: var(--mute); }
.art-meta .tag { color: #fff; background: var(--sig); padding: 3px 8px; }
.art-head h1 { font-size: clamp(2rem, 4vw, 3.3rem); font-stretch: 76%; font-weight: 800; margin: 12px 0 16px; }
:lang(zh) .art-head h1, :lang(ja) .art-head h1 { font-stretch: 100%; }
.art-by { display: flex; gap: 8px; align-items: center; color: var(--mute); font-size: .88rem; }
.art-cover { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border: 1px solid var(--rule-2); background: #fff; }
.art-credit { font: 500 .72rem var(--mono); color: var(--mute); margin: 8px 0 30px; }
.prose { font-size: 1.06rem; color: var(--ink-2); line-height: 1.75; }
.prose h2 { font-size: 1.7rem; font-stretch: 80%; color: var(--ink); margin: 2em 0 .6em; padding-top: .6em; border-top: 1px solid var(--rule); }
.prose h3, .prose h4 { font-size: 1.2rem; color: var(--ink); margin: 1.6em 0 .4em; }
.prose a { color: var(--cu); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose .btn { text-decoration: none; color: #fff; } .prose .btn-ghost { color: var(--ink); }
.prose strong { color: var(--ink); }
.prose ul, .prose ol { padding-inline-start: 1.3em; } .prose li { margin-bottom: .4em; } .prose li::marker { color: var(--cu); }
.prose blockquote { margin: 1.5em 0; padding: 6px 20px; border-inline-start: 3px solid var(--cu); background: #fff; color: var(--ink); }
.prose table { width: 100%; border-collapse: collapse; font-size: .92rem; margin: 1.4em 0; background: #fff; display: block; overflow-x: auto; }
.prose th, .prose td { padding: 9px 12px; border-bottom: 1px solid var(--rule); text-align: start; }
.prose th { background: var(--ink); color: #fff; font: 600 .76rem var(--mono); }
.prose figure { margin: 1.6em 0; } .prose figure img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border: 1px solid var(--rule-2); }
.prose figcaption { font: 500 .72rem var(--mono); color: var(--mute); margin-top: 6px; }
.prose .faq h2 { border: 0; }
.prose .faq details { border-bottom: 1px solid var(--rule); padding: 14px 0; }
.prose .faq summary { cursor: pointer; font-weight: 650; color: var(--ink); }
.prose .faq p { margin: 10px 0 0; }
.art-cta { margin: 40px 0; padding: 28px; background: var(--ink); color: #fff; border-inline-start: 4px solid var(--cu); }
.art-cta h2 { color: #fff !important; border: 0 !important; margin: 0 0 8px !important; padding: 0 !important; font-size: 1.5rem !important; }
.art-cta p { color: #b8c5ce; margin: 0 0 16px; }
.art-cta .btn::before { background: #fff; } .art-cta .btn:hover { color: var(--ink); }
.art-note { display: flex; gap: 8px; align-items: center; font-size: .84rem; color: var(--mute); padding: 12px 14px; border: 1px dashed var(--rule-2); }
.sources { margin-top: 28px; padding: 20px 22px; background: #fff; border: 1px solid var(--rule-2); font-size: .9rem; }
.sources h2 { font-size: .8rem !important; font-family: var(--mono) !important; letter-spacing: .12em; text-transform: uppercase; color: var(--sig) !important; border: 0 !important; margin: 0 0 10px !important; padding: 0 !important; }
.sources span { color: var(--mute); }

/* ── reveal ─────────────────────────────────────────────────────────────── */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease) var(--d, 0ms), transform .7s var(--ease) var(--d, 0ms); }
.js .reveal.in { opacity: 1; transform: none; }

/* ── responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 1180px) {
  .hx-inner, .cx-grid, .cfg-grid, .q-grid, .cab-grid, .faq-grid, .pd-grid, .pd-body, .inq-band, .contact-grid, .sol-intro, .split, .phero-inner, .footer-top { grid-template-columns: minmax(0, 1fr); }
  .cfg-form { border-inline-end: 0; border-bottom: 1px solid rgba(255,255,255,.18); }
  .faq-grid .sec-head, .pd-features, .cat-side, .cx-preview { position: static; }
  .offer-grid { grid-template-columns: 1fr 1fr; } .offer { border-bottom: 1px solid var(--rule); }
  .ind { height: auto; flex-direction: column; } .ind-p { flex: none; height: 320px; } .ind-p .ind-more { max-height: 260px; opacity: 1; }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 30px; }
  .cat-layout { grid-template-columns: 1fr; }
  .film { grid-auto-columns: minmax(280px, 60%); }
}
@media (max-width: 1100px) {
  .tb-std { display: none; }
  .menu-btn { display: grid; }
  .nav { display: none; }
  .nav.open { display: flex; position: fixed; inset: var(--header-h) 0 0; flex-direction: column; height: auto; padding: 12px var(--gutter) 40px; background: #fff; overflow-y: auto; margin: 0; }
  .site-header.scrolled .nav.open { inset-block-start: var(--bar-h); }
  .nav.open .nav-item { flex-direction: column; }
  .nav.open .nav-link { height: auto; padding: 16px 0; border-bottom: 1px solid var(--rule); font-size: 1.1rem; justify-content: space-between; }
  .nav.open .nav-link::after { display: none; }
  .nav.open .mega, .nav.open .drop { position: static; width: auto; display: none; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; border-inline-start: 3px solid var(--cu); }
  .nav.open .nav-item.open .mega, .nav.open .nav-item.open .drop { display: block; }
  .nav.open .mega-cols { grid-template-columns: 1fr; } .nav.open .mega-groups { display: none; }
  .nav.open .mega-panel, .nav.open .mega-panel[hidden] { display: grid; grid-template-columns: 1fr; }
  .header-cta { display: none; }
}
@media (max-width: 760px) {
  :root { --top-h: 34px; --bar-h: 62px; }
  .tb-right .tb-mail { display: none; }
  .hx-specs { grid-template-columns: 1fr 1fr; } .hx-specs div { padding: 10px 0 10px; border-inline-end: 0; border-bottom: 1px solid var(--rule); padding-inline-start: 0 !important; }
  .pin-label { font-size: .64rem; padding: 4px 6px; } .pin { --len: 34px !important; } .pin-label small { display: none; }
  .stage-tabs button { font-size: .78rem; padding: 12px 8px; } .stage-tabs button i { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; } .stat { border-bottom: 1px solid var(--rule); padding-inline-start: 0 !important; } .stat:nth-child(2n) { border-inline-end: 0; padding-inline-start: 16px !important; }
  .stat:not(:first-child)::before { inset-inline-start: 0; } .stat:nth-child(2n)::before { inset-inline-start: 16px; }
  .sec-head { grid-template-columns: 1fr; }
  .cx-preview { display: none; } .cx-thumb { display: block; grid-row: 1 / span 2; grid-column: 3; width: 72px; height: 56px; object-fit: contain; mix-blend-mode: multiply; background: #fff; border: 1px solid var(--rule); }
  .cx-item a { grid-template-columns: 2.2em minmax(0, 1fr) 72px; } .cx-cnt { display: none; } .cx-item small { max-height: none; opacity: 1; }
  .offer-grid, .about-grid { grid-template-columns: 1fr; } .about-block, .offer { border-inline-end: 0; border-bottom: 1px solid var(--rule); }
  .gauge { grid-template-columns: 1fr; } .gauge svg { width: 180px; }
  .steps { grid-template-columns: 1fr; } .steps::before { top: 0; bottom: 0; inset-inline-start: 23px; width: 2px; height: auto; inset-inline-end: auto; }
  .step { padding-inline-start: 64px; } .step-n { position: absolute; inset-inline-start: 0; top: 0; padding: 0; background: none; } .step-n i { display: none; }
  .q-stacks { grid-template-columns: 1fr 1fr; gap: 6px; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
  .cta-inner { grid-template-columns: 1fr; }
  .inq-grid { grid-template-columns: 1fr; }
  .film { grid-auto-columns: 82%; }
  .xsec-img { display: none; }
  .fab span { display: none; } .fab { padding: 15px; }
  .rail-nav .btn { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* fixes after first review */
.stage-fig { background-color: #fff; background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px); background-size: 20px 20px; }
.xsec { aspect-ratio: 700 / 520; max-width: 640px; }
.xsec .lbl-line { fill: none; }
.cab-grid { align-items: start; }
.cab-grid .sec-head { grid-template-columns: 1fr; margin-bottom: 18px; }
.news-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.pin-label { white-space: normal; width: max-content; max-width: 170px; }
.pin-label b, .ticker span, .tb-right a, .pc-spec dd, .spec td, .spec tbody th, .cfg-big, .cfg-cur b, .cfg-load b, .pd-kpis dd, .cert-chips li, .q-stds li, .stat-v { unicode-bidi: plaintext; }
:lang(zh) .phero h1, :lang(ja) .phero h1 { font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1.2; }
:lang(zh) .sec-head h2, :lang(ja) .sec-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.9rem); }

/* ── hero animated background + certificate lightbox (2026-10-13) ── */
.hx { isolation: isolate; }
.hx-bg { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.hx::before { z-index: 1; pointer-events: none;
  background: radial-gradient(640px 520px at 24% 50%, rgba(244,245,241,.86), rgba(244,245,241,.5) 55%, transparent 75%),
    radial-gradient(760px 560px at 74% 46%, rgba(255,255,255,.7), transparent 70%); }
.hx-inner, .hx .ticker { position: relative; z-index: 2; }
.hx .stage { background: rgba(255,255,255,.88); backdrop-filter: blur(2px); }

.lb { position: fixed; inset: 0; z-index: 120; display: grid; grid-template-columns: 64px minmax(0, 1fr) 64px; align-items: center; gap: 12px; padding: 48px 20px 28px;
  background: rgba(15,28,40,.82); backdrop-filter: blur(4px); animation: fade .2s; cursor: zoom-out; }
.lb[hidden] { display: none; }
.lb-fig { margin: 0; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; min-height: 0; }
.lb-fig img { max-width: min(100%, 980px); max-height: calc(100% - 40px); object-fit: contain; background: #fff; padding: 10px; box-shadow: 0 30px 80px -20px rgba(0,0,0,.6); cursor: default; animation: lb-in .3s var(--ease); }
@keyframes lb-in { from { opacity: 0; transform: scale(.96); } }
.lb-fig figcaption { display: flex; gap: 16px; align-items: center; color: #e6ecef; font: 500 .78rem var(--mono); letter-spacing: .08em; text-transform: uppercase; cursor: default; }
.lb-n { color: var(--cu-2); }
.lb-x { position: absolute; top: 12px; inset-inline-end: 14px; width: 44px; height: 44px; border: 1.5px solid rgba(255,255,255,.5); background: transparent; color: #fff; font: 300 1.8rem/1 var(--sans); cursor: pointer; }
.lb-nav { width: 52px; height: 52px; justify-self: center; border: 1.5px solid rgba(255,255,255,.5); background: transparent; color: #fff; font: 300 2.2rem/1 var(--sans); cursor: pointer; }
.lb-x:hover, .lb-nav:hover { background: var(--cu); border-color: var(--cu); }
.lb.single .lb-nav, .lb.single .lb-n { visibility: hidden; }
[dir=rtl] .lb-prev, [dir=rtl] .lb-next { transform: scaleX(-1); }
.stack a { cursor: zoom-in; }
@media (max-width: 760px) {
  .lb { grid-template-columns: 1fr; padding: 60px 10px 20px; }
  .lb-nav { position: absolute; bottom: 18px; } .lb-prev { inset-inline-start: 20px; } .lb-next { inset-inline-end: 20px; }
}
@media (max-width: 760px) { .pin-label { max-width: 92px; } .stage-fig { overflow: hidden; } }