/* LINGSTAR PARTS — design system
   沿用展会海报的配色与字体，保证网站与展位物料一致 */

@font-face{font-family:Oswald;font-style:normal;font-weight:100 900;font-display:swap;
  src:url(../fonts/oswald-lat.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Oswald;font-style:normal;font-weight:100 900;font-display:swap;
  src:url(../fonts/oswald-latext.woff2) format('woff2');
  unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,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:Oswald;font-style:normal;font-weight:100 900;font-display:swap;
  src:url(../fonts/oswald-cyr.woff2) format('woff2');
  unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}
@font-face{font-family:Oswald;font-style:normal;font-weight:100 900;font-display:swap;
  src:url(../fonts/oswald-cyrext.woff2) format('woff2');
  unicode-range:U+0460-052F,U+1C80-1C88,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}

:root{
  --navy-900:#050B16; --navy-800:#081428; --navy-700:#0B1C38; --navy-600:#14407F;
  --blue:#00308C; --blue-lt:#2E6DB4;
  --red:#E1242A; --red-d:#C81D24; --amber:#F0A81E;
  --txt:#E8EFF9; --muted:#A9B8CE; --muted-2:#7C8CA6;
  --line:rgba(255,255,255,.10); --line-2:rgba(255,255,255,.18);
  --card:rgba(255,255,255,.045); --card-2:rgba(255,255,255,.075);
  --wrap:1240px; --r:10px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:Oswald,-apple-system,'Segoe UI',Arial,sans-serif;
  color:var(--txt); background:var(--navy-900);
  -webkit-font-smoothing:antialiased; font-weight:300; line-height:1.5;
  background-image:
    radial-gradient(125% 55% at 50% -8%,#14407F 0%,rgba(10,23,48,0) 62%),
    radial-gradient(90% 42% at 108% 104%,rgba(225,36,42,.22) 0%,rgba(8,20,40,0) 66%),
    linear-gradient(180deg,#0B1C38 0%,#081428 58%,#050B16 100%);
  background-attachment:fixed;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 26px}

/* ---------- 顶栏 ---------- */
header{position:sticky;top:0;z-index:60;background:rgba(6,14,28,.88);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
.brand{display:flex;align-items:center;gap:14px}
.logo-card{background:#fff;border-radius:7px;padding:7px 12px;display:flex;align-items:center}
.logo-card img{height:34px;width:auto}
.brand .dv{width:1px;height:30px;background:var(--line-2)}
.brand .tag{font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);line-height:1.25}
.brand .tag b{display:block;color:#fff;font-weight:500;letter-spacing:.09em;font-size:13px}
nav{display:flex;align-items:center;gap:4px}
nav a{font-size:14px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);
  padding:9px 14px;border-radius:7px;font-weight:400;transition:.16s;white-space:nowrap}
nav a:hover{color:#fff;background:var(--card-2)}
nav a.on{color:#fff;background:rgba(225,36,42,.16);box-shadow:inset 0 0 0 1px rgba(225,36,42,.4)}
.lang{display:flex;border:1px solid var(--line-2);border-radius:7px;overflow:hidden;margin-left:10px}
.lang button{background:none;border:0;color:var(--muted-2);font-family:inherit;font-size:12.5px;
  letter-spacing:.1em;padding:8px 11px;cursor:pointer;font-weight:500;transition:.15s}
.lang button.on{background:var(--red);color:#fff}
.lang button:hover:not(.on){color:#fff}
.burger{display:none;background:none;border:1px solid var(--line-2);border-radius:7px;
  color:#fff;font-size:20px;padding:4px 12px;cursor:pointer;font-family:inherit}

/* ---------- 英雄区 ---------- */
.hero{padding:78px 0 60px;position:relative;overflow:hidden}
.hero:before{content:'';position:absolute;right:-160px;top:-60px;width:760px;height:760px;
  background:linear-gradient(135deg,rgba(255,255,255,.05),rgba(255,255,255,0));
  transform:rotate(-24deg);pointer-events:none}
.hero .eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--amber);border:1px solid rgba(240,168,30,.35);
  background:rgba(240,168,30,.09);padding:7px 15px;border-radius:999px;font-weight:400}
.hero h1{font-size:clamp(38px,6.2vw,74px);font-weight:700;line-height:.94;letter-spacing:-.015em;
  text-transform:uppercase;margin:24px 0 0;max-width:16ch}
.hero h1 em{font-style:normal;color:var(--red)}
.hero .sub{font-size:clamp(16px,1.5vw,19.5px);color:var(--muted);max-width:60ch;margin-top:20px;font-weight:300}
.tbar{height:7px;width:186px;background:var(--red);margin:26px 0 0}
.hero .cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.btn{display:inline-flex;align-items:center;gap:9px;font-family:inherit;font-size:14.5px;
  letter-spacing:.1em;text-transform:uppercase;font-weight:500;padding:14px 26px;
  border-radius:8px;border:1px solid transparent;cursor:pointer;transition:.18s}
.btn-r{background:var(--red);color:#fff}
.btn-r:hover{background:var(--red-d);transform:translateY(-1px)}
.btn-g{border-color:var(--line-2);color:#fff;background:var(--card)}
.btn-g:hover{background:var(--card-2);border-color:rgba(255,255,255,.34)}

/* ---------- 统计条 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin-top:52px}
.stats div{background:rgba(8,20,40,.72);padding:22px 20px}
.stats b{display:block;font-size:32px;font-weight:600;line-height:1;color:#fff}
.stats b span{color:var(--red)}
.stats p{font-size:12.5px;letter-spacing:.11em;text-transform:uppercase;color:var(--muted-2);margin-top:9px}

/* ---------- 通用区块 ---------- */
section.sec{padding:70px 0}
.sec-hd{margin-bottom:34px;display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap}
.sec-hd h2{font-size:clamp(26px,3.2vw,40px);font-weight:700;text-transform:uppercase;
  letter-spacing:-.01em;line-height:1.02}
.sec-hd .ru2{color:var(--muted-2);font-size:15px;font-weight:300;letter-spacing:.04em;margin-top:8px}
.sec-hd .more{font-size:13.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--amber);font-weight:400}
.sec-hd .more:hover{color:#ffc44d}
.rule{height:6px;width:100%;background:linear-gradient(90deg,var(--red) 0 42%,var(--blue) 42% 100%);
  border-radius:3px;margin:0 0 56px}

/* ---------- 品类网格 ---------- */
.cats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cat{background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.cat:hover{background:var(--card-2);border-color:rgba(225,36,42,.45);transform:translateY(-3px)}
.ph{position:relative;aspect-ratio:16/10;display:flex;align-items:center;justify-content:center;
  border-bottom:1px solid var(--line);text-align:center;padding:12px;
  background:
    repeating-linear-gradient(135deg,rgba(255,255,255,.055) 0 12px,rgba(255,255,255,0) 12px 24px),
    linear-gradient(160deg,rgba(255,255,255,.09) 0%,rgba(255,255,255,.02) 55%,rgba(0,0,0,.2) 100%)}
.ph .pi{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);
  border:1px dashed rgba(255,255,255,.3);border-radius:6px;padding:6px 10px}
.ph .px{display:block;font-size:10px;color:var(--muted-2);opacity:.75;margin-top:4px;letter-spacing:.06em}
.cat .bd{padding:17px 18px 19px;flex:1;display:flex;flex-direction:column}
.cat h3{font-size:19.5px;font-weight:600;text-transform:uppercase;letter-spacing:.005em;line-height:1.15}
.cat .ru{font-size:13.5px;color:var(--muted-2);font-weight:300;margin-top:5px}
.cat p{font-size:13.5px;color:var(--muted);margin-top:11px;line-height:1.5;flex:1}

/* ---------- 车型条 ---------- */
.models{border:1px solid var(--line);border-radius:var(--r);background:rgba(8,20,40,.6);
  padding:26px 28px;display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.models .lb{font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);
  max-width:190px;line-height:1.4}
.models ul{display:flex;gap:11px;flex-wrap:wrap;list-style:none}
.models li{font-size:17px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;
  padding:9px 17px;border-radius:7px;background:var(--card-2);border:1px solid var(--line)}
.models li.hot{background:rgba(225,36,42,.16);border-color:rgba(225,36,42,.45);color:#fff}

/* ---------- 三栏价值 ---------- */
.vals{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.val{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;
  border-top:3px solid var(--red)}
.val:nth-child(2){border-top-color:var(--amber)}
.val:nth-child(3){border-top-color:var(--blue-lt)}
.val h3{font-size:18.5px;font-weight:600;text-transform:uppercase;margin-bottom:11px}
.val p{font-size:14px;color:var(--muted);line-height:1.6}

/* ---------- 展会条 ---------- */
.exh{margin:0;border-radius:var(--r);overflow:hidden;border:1px solid rgba(240,168,30,.3);
  background:linear-gradient(120deg,rgba(225,36,42,.14) 0%,rgba(8,20,40,.85) 46%,rgba(0,48,140,.35) 100%);
  padding:32px 34px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.exh h3{font-size:clamp(20px,2.4vw,29px);font-weight:700;text-transform:uppercase;line-height:1.1}
.exh .meta{display:flex;gap:30px;flex-wrap:wrap;margin-top:16px}
.exh .meta div{font-size:14px;color:var(--muted)}
.exh .meta b{display:block;color:var(--amber);font-size:20px;font-weight:600;letter-spacing:.02em}
.exh .meta span{font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted-2)}

/* ---------- 联系方式 ---------- */
.contact{display:grid;grid-template-columns:1.35fr 1fr;gap:16px}
.ccard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:30px 32px}
.ccard h3{font-size:21px;font-weight:600;text-transform:uppercase;margin-bottom:20px}
.crow{display:flex;gap:14px;padding:13px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.crow:last-child{border-bottom:0}
.crow .k{font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:var(--muted-2);
  min-width:96px;padding-top:3px}
.crow .v{font-size:15.5px;color:var(--txt);word-break:break-word}
.crow .v b{color:var(--amber);font-weight:600}
.qrs{display:flex;gap:16px;margin-top:8px}
.qr{background:#fff;border-radius:9px;padding:11px;text-align:center;flex:1}
.qr img{width:100%;height:auto;image-rendering:pixelated}
.qr span{display:block;font-size:11px;letter-spacing:.09em;text-transform:uppercase;
  color:#334;margin-top:8px;font-weight:500}

/* ---------- 页脚 ---------- */
footer{border-top:1px solid var(--line);margin-top:70px;padding:38px 0 46px;background:rgba(5,11,22,.6)}
footer .fg{display:flex;justify-content:space-between;gap:26px;flex-wrap:wrap;align-items:center}
footer .fl{display:flex;align-items:center;gap:13px}
footer .fl img{height:30px;width:auto;background:#fff;border-radius:5px;padding:5px 9px}
footer .fc{font-size:13px;color:var(--muted-2);line-height:1.7}
footer .fc a{color:var(--muted)}
footer .fc a:hover{color:#fff}

/* ---------- 页面标题（子页） ---------- */
.phead{padding:56px 0 0}
.phead .eyebrow{font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--amber)}
.phead h1{font-size:clamp(32px,4.6vw,56px);font-weight:700;text-transform:uppercase;
  line-height:.98;letter-spacing:-.015em;margin-top:14px}
.phead .sub{font-size:16.5px;color:var(--muted);max-width:70ch;margin-top:16px}

/* ---------- 目录页 ---------- */
.tools{background:rgba(8,20,40,.78);border:1px solid var(--line);border-radius:var(--r);
  padding:18px;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:12px;margin-bottom:16px;
  position:sticky;top:76px;z-index:40;backdrop-filter:blur(12px)}
.tools input,.tools select{font-family:inherit;font-size:14.5px;color:#fff;background:rgba(255,255,255,.07);
  border:1px solid var(--line-2);border-radius:8px;padding:12px 14px;width:100%;outline:none;font-weight:300}
.tools input::placeholder{color:var(--muted-2)}
.tools input:focus,.tools select:focus{border-color:var(--red);background:rgba(255,255,255,.1)}
.tools select option{background:#0B1C38;color:#fff}
.meta-row{display:flex;justify-content:space-between;align-items:center;gap:16px;
  flex-wrap:wrap;margin:0 2px 12px;font-size:13.5px;color:var(--muted-2)}
.meta-row b{color:#fff;font-weight:600}
.tblbox{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(6,14,28,.5)}
.tblscroll{overflow-x:auto}
table.cat-tbl{width:100%;border-collapse:collapse;font-size:13.5px;min-width:1020px}
table.cat-tbl thead th{background:rgba(0,48,140,.34);color:#fff;font-weight:500;font-size:12px;
  letter-spacing:.11em;text-transform:uppercase;text-align:left;padding:13px 14px;
  border-bottom:1px solid var(--line-2);white-space:nowrap;cursor:pointer;user-select:none}
table.cat-tbl thead th:hover{background:rgba(0,48,140,.5)}
table.cat-tbl thead th:after{content:'\2195';opacity:.32;margin-left:7px;font-size:11px}
table.cat-tbl thead th.nosort:after{content:''}
table.cat-tbl tbody td{padding:12px 14px;border-bottom:1px solid var(--line);color:var(--muted);
  vertical-align:top;font-weight:300}
table.cat-tbl tbody tr:hover td{background:rgba(255,255,255,.035);color:var(--txt)}
table.cat-tbl tbody td.no{font-family:Consolas,'Courier New',monospace;font-weight:600;color:var(--amber);
  white-space:nowrap;font-size:13px}
table.cat-tbl tbody td.mk{color:#fff;font-weight:400;white-space:nowrap}
table.cat-tbl tbody td.oem{font-family:Consolas,'Courier New',monospace;font-size:12px;
  color:#9FB6D6;word-break:break-word}
table.cat-tbl tbody td.dim{white-space:nowrap;text-align:right;font-variant-numeric:tabular-nums}
.pgn{display:flex;justify-content:center;align-items:center;gap:7px;padding:20px;flex-wrap:wrap}
.pgn button{font-family:inherit;font-size:13.5px;min-width:38px;padding:9px 11px;border-radius:7px;
  background:var(--card);border:1px solid var(--line-2);color:var(--muted);cursor:pointer;transition:.15s;font-weight:400}
.pgn button:hover:not(:disabled){background:var(--card-2);color:#fff}
.pgn button.on{background:var(--red);border-color:var(--red);color:#fff}
.pgn button:disabled{opacity:.35;cursor:default}
.empty{padding:56px 20px;text-align:center;color:var(--muted-2)}
.empty b{display:block;color:#fff;font-size:19px;margin-bottom:8px;font-weight:600}

/* ---------- 关于页 ---------- */
.about{display:grid;grid-template-columns:1.25fr 1fr;gap:16px}
.abtx p{font-size:15px;color:var(--muted);line-height:1.72;margin-bottom:15px}
.abtx p b{color:#fff;font-weight:500}
.certs{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.certs span{font-size:12.5px;letter-spacing:.09em;text-transform:uppercase;padding:8px 14px;
  border-radius:7px;background:var(--card-2);border:1px solid var(--line);color:var(--muted)}
.facts{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.facts h3{font-size:17px;font-weight:600;text-transform:uppercase;margin-bottom:16px}
.facts .fr{display:flex;justify-content:space-between;gap:14px;padding:11px 0;
  border-bottom:1px solid var(--line);font-size:14px}
.facts .fr:last-child{border-bottom:0}
.facts .fr span{color:var(--muted-2)}
.facts .fr b{color:#fff;font-weight:500;text-align:right}

/* ---------- 俄语/英语切换 ---------- */
[data-ru]{display:none}
body.ru [data-en]{display:none}
body.ru [data-ru]{display:block}
body.ru span[data-ru],body.ru div[data-ru].iv,body.ru li[data-ru]{display:inline}
body.ru div[data-ru]{display:block}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .cats{grid-template-columns:repeat(2,1fr)}
  .tools{grid-template-columns:1fr 1fr;position:static}
  .contact,.about{grid-template-columns:1fr}
}
@media(max-width:820px){
  nav{position:fixed;inset:76px 0 auto;flex-direction:column;align-items:stretch;
    background:rgba(6,14,28,.98);padding:12px;gap:2px;border-bottom:1px solid var(--line);
    display:none}
  nav.open{display:flex}
  nav a{padding:14px}
  .lang{margin:8px 0 0}
  .burger{display:block}
  .stats{grid-template-columns:repeat(2,1fr)}
  .vals{grid-template-columns:1fr}
  .brand .tag{display:none}
  section.sec{padding:52px 0}
  .hero{padding:48px 0 40px}
}
@media(max-width:560px){
  .cats{grid-template-columns:1fr}
  .wrap{padding:0 16px}
  .stats{grid-template-columns:1fr 1fr}
  .contact .ccard{padding:22px 20px}
  .exh{padding:24px 20px}
}
@media print{
  /* 深色主题必须显式允许打印背景色，否则掉成白底 */
  *{-webkit-print-color-adjust:exact !important;print-color-adjust:exact !important}
  header,.tools,.pgn,.burger,nav{display:none !important}
  body{background:#050B16 !important}
  .hero:before{display:none}
  section.sec{padding:38px 0}
  .cat,.val,.models,.ccard,.exh{break-inside:avoid}
}