@charset "UTF-8";
/* ==========================================================================
   重庆焱能滤油机有限公司 · 官网样式
   设计方向：深色电影感 + 编辑排版（大留白 / 极细分隔线 / 超大标题 / 目录式产品索引）
   与常见的"白底蓝橙卡片网格"模板刻意区分
   ========================================================================== */

:root{
  --ink:      #07090C;
  --ink-2:    #0D1218;
  --ink-3:    #121821;
  --ink-4:    #1B232E;
  --line:     rgba(255,255,255,.12);
  --line-2:   rgba(255,255,255,.06);
  --paper:    #FFFFFF;
  --paper-2:  #F1F2F4;
  --paper-3:  #E4E6EA;
  --mute:     #8B95A3;
  --mute-2:   #59626F;
  --mute-3:   #3C444F;
  --hot:      #FF5A1F;
  --hot-2:    #FF8B45;
  --hot-soft: rgba(255,90,31,.14);
  --cool:     #46B9CC;
  --cool-2:   #7FD8E4;
  --cool-soft:rgba(70,185,204,.13);
  --cool-deep:#0B6A79;

  --container:1340px;
  --gutter:40px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans CN","Noto Sans CJK SC",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --font-en:"Helvetica Neue",Helvetica,"Segoe UI",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);background:var(--ink);color:#E8ECF1;
  line-height:1.78;font-size:16px;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
/* height:auto matters: the pages carry width/height attributes on every <img>
   so the browser can reserve the box before the picture arrives. That
   attribute is a presentational hint for the height property, and a definite
   height wins over aspect-ratio - without height:auto the photo would be
   drawn at the height of the original file (a 1920x1440 picture squeezed
   into a 222px wide column becomes a 222x1440 strip) and the layout breaks. */
img{max-width:100%;height:auto;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p,figure{margin:0}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}
table{border-collapse:collapse;width:100%}
::selection{background:var(--hot);color:#fff}
img::selection{background:transparent}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-9999px;top:0;z-index:999;background:var(--hot);color:#fff;padding:12px 20px}
.skip-link:focus{left:0}

/* ===================== 通用排版 ===================== */
.prow>span,.nrow>span,.qa-item>*{min-width:0}
.display{
  font-weight:800;line-height:1.06;letter-spacing:-.025em;
  color:#fff;
}
.display-xl{font-size:clamp(38px,7.4vw,102px)}
.display-lg{font-size:clamp(30px,5vw,68px)}
.display-md{font-size:clamp(24px,3.4vw,44px)}
.display-sm{font-size:clamp(20px,2.4vw,30px)}
.dim{color:var(--mute)}
.hl{color:var(--hot)}
.rule{height:1px;background:var(--line);border:0;margin:0}
.lead{font-size:clamp(15px,1.35vw,18px);line-height:1.95;color:var(--mute);max-width:760px}
.on-paper .lead{color:var(--mute-2)}
.on-paper{background:var(--paper);color:#0B0F14}
.on-paper .display{color:#0B0F14}
.on-paper .rule{background:var(--paper-3)}

/* ===================== 顶栏 ===================== */
/* ===================== 头部 ===================== */
.header{
  position:sticky;top:0;z-index:100;background:rgba(8,11,15,.9);
  backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--line-2);transition:background .35s var(--ease),border-color .35s var(--ease);
}
.header.scrolled{background:rgba(8,11,15,.985);border-bottom-color:var(--line)}
.header .container{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}

.logo{display:flex;align-items:center;gap:13px;flex:none}
.logo-mark{width:40px;height:40px;flex:none}
.logo-text{display:flex;flex-direction:column;line-height:1.18}
.logo-cn{font-size:18.5px;font-weight:800;color:#fff;letter-spacing:.04em}
.logo-en{font-size:9.5px;color:var(--mute-2);letter-spacing:.22em;text-transform:uppercase;font-weight:600}

.header-actions{display:flex;align-items:center;gap:18px;flex:none}

/* 顶部热线（窄屏隐藏，号码在导航面板与页脚里仍有） */
.head-tel{
  display:flex;align-items:center;gap:10px;padding-right:20px;
  border-right:1px solid var(--line-2);transition:.24s var(--ease);
}
.head-tel svg{width:15px;height:15px;color:var(--hot);flex:none}
.head-tel .lbl{font-size:11px;color:var(--mute-2);letter-spacing:.08em}
.head-tel b{font-family:var(--font-en);font-size:17px;color:#fff;font-weight:700;letter-spacing:.02em}
.head-tel:hover b{color:var(--hot-2)}

/* 语言切换（中文站与英文站共用；链接由构建时写死，不依赖 js） */
.lang-switch{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-en);font-size:12.5px;letter-spacing:.05em;white-space:nowrap}
.lang-switch a{color:var(--mute-2);padding:3px 1px;border-bottom:1px solid transparent;transition:.22s var(--ease)}
.lang-switch a:hover{color:#fff}
.lang-switch a.active{color:#fff;border-bottom-color:var(--hot)}
.lang-switch .ls-sep{color:var(--mute-2);opacity:.45}
.ls-menu{gap:10px;font-size:13px}
.ls-menu a{padding:6px 12px;border:1px solid var(--line)}
.ls-menu a:hover{border-color:#fff}
.ls-menu a.active{border-color:var(--hot);color:#fff}
.ls-menu .ls-sep{display:none}

/* 菜单按钮 */
.menu-btn{
  display:inline-flex;align-items:center;gap:11px;height:42px;padding:0 18px;
  border:1px solid var(--line);background:transparent;color:#fff;cursor:pointer;
  transition:.26s var(--ease);letter-spacing:.06em;
}
.menu-btn:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.menu-btn .bars{display:flex;flex-direction:column;justify-content:center;gap:4.2px;width:18px}
.menu-btn .bars i{display:block;height:1.6px;background:currentColor;transition:.3s var(--ease)}
.menu-btn .lbl{font-size:13px;font-weight:700;letter-spacing:.14em}
.menu-btn.open{border-color:var(--hot);background:var(--hot)}
.menu-btn.open .bars i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-btn.open .bars i:nth-child(2){opacity:0}
.menu-btn.open .bars i:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:0 28px;height:46px;border:1px solid transparent;border-radius:0;
  font-size:14.5px;font-weight:700;cursor:pointer;transition:.26s var(--ease);white-space:nowrap;
  letter-spacing:.02em;
}
.btn svg{width:15px;height:15px;flex:none}
.btn-hot{background:var(--hot);color:#fff}
.btn-hot:hover{background:#E8470C;transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,90,31,.3)}
.btn-line{border-color:var(--line);color:#fff;background:transparent}
.btn-line:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-4);transform:translateY(-2px)}
.btn-lg{height:54px;padding:0 36px;font-size:15.5px}
.btn-sm{height:38px;padding:0 20px;font-size:13.5px;letter-spacing:.04em}
.btn-block{width:100%}

/* ===================== 全屏导航面板 ===================== */
.menu{position:fixed;inset:0;z-index:120;visibility:hidden;pointer-events:none}
.menu.open{visibility:visible;pointer-events:auto}
.menu-mask{position:absolute;inset:0;background:rgba(4,6,9,.74);opacity:0;transition:opacity .38s var(--ease)}
.menu.open .menu-mask{opacity:1}
.menu-panel{
  position:absolute;inset:0;display:flex;flex-direction:column;overflow:hidden;
  background:
    radial-gradient(78% 86% at 86% -12%,rgba(255,90,31,.14),transparent 56%),
    radial-gradient(58% 66% at 6% 112%,rgba(70,185,204,.10),transparent 60%),
    linear-gradient(180deg,#0C1117 0%,#070A0E 100%);
  transform:translateY(-100%);transition:transform .46s var(--ease);
}
.menu.open .menu-panel{transform:translateY(0)}

.menu-top{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex:none;
  padding:20px var(--gutter);border-bottom:1px solid var(--line-2);
}
.menu-logo{display:flex;align-items:center;gap:12px;flex:none}
.menu-logo .logo-mark{width:34px;height:34px}
.menu-close{
  display:inline-flex;align-items:center;gap:10px;height:40px;padding:0 18px;
  border:1px solid var(--line);background:transparent;color:#fff;cursor:pointer;
  font-size:12.5px;font-weight:600;letter-spacing:.14em;transition:.24s var(--ease);
}
.menu-close:hover{border-color:var(--hot);color:var(--hot-2)}
.menu-close svg{width:15px;height:15px}

.menu-body{
  flex:1;display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  gap:48px;align-items:stretch;width:100%;padding:32px var(--gutter) 28px;overflow-y:auto;
}

/* 分组标签：橙色编号 + 中文 + 延伸细线，与全站区块标题同一套语言 */
.menu-label{display:flex;align-items:baseline;gap:14px;margin-bottom:16px}
.menu-label i{
  font-family:var(--font-en);font-style:normal;font-size:12px;font-weight:700;
  letter-spacing:.22em;color:var(--hot);
}
.menu-label span{font-size:12.5px;letter-spacing:.14em;color:var(--mute-2)}
.menu-label::after{content:"";flex:1;height:1px;background:var(--line-2)}

.menu-main{display:flex;flex-direction:column}
.menu-nav{display:flex;flex-direction:column}
.mn-link{
  position:relative;display:grid;
  grid-template-columns:26px minmax(0,1fr) auto;grid-template-rows:auto auto;
  align-items:baseline;column-gap:14px;row-gap:3px;
  padding:15px 12px;margin:0 -12px;
  border-bottom:1px solid var(--line-2);transition:.24s var(--ease);
}
.mn-link .no{grid-column:1;grid-row:1;font-family:var(--font-en);font-size:10px;font-weight:700;color:var(--mute-3);letter-spacing:.12em;transition:.24s}
.mn-link .t{grid-column:2;grid-row:1;font-size:clamp(18px,1.5vw,23px);font-weight:800;color:#fff;line-height:1.32;letter-spacing:-.01em;transition:.24s}
.mn-link .en{grid-column:3;grid-row:1;font-family:var(--font-en);font-size:9.5px;letter-spacing:.2em;color:var(--mute-3);text-transform:uppercase;transition:.24s}
.mn-link .d{grid-column:2 / -1;grid-row:2;font-size:12.5px;color:var(--mute-2);line-height:1.55;transition:.24s}
.mn-link:hover{background:linear-gradient(90deg,rgba(255,90,31,.13),rgba(255,90,31,0) 72%);padding-left:20px}
.mn-link:hover .no{color:var(--hot)}
.mn-link:hover .en{color:var(--hot-2)}
.mn-link:hover .d{color:var(--mute)}
.mn-link.current .t{color:var(--hot)}
.mn-link.current .no{color:var(--hot)}
.mn-link.current .d{color:var(--mute)}
.mn-link.current::before{content:"";position:absolute;left:0;top:10px;bottom:10px;width:2px;background:var(--hot)}

.menu-slogan{border-top:1px solid var(--line-2);padding-top:20px;margin-top:auto}

.menu-slogan span{
  display:block;font-size:11px;letter-spacing:.24em;color:var(--mute-3);
  text-transform:uppercase;margin-bottom:10px;
}
.menu-slogan b{
  display:block;font-size:clamp(15px,1.3vw,19px);font-weight:800;
  color:rgba(255,255,255,.9);line-height:1.38;letter-spacing:-.01em;
}/* left column number strip */
.menu-facts{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:26px;
  border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);
}
.menu-facts .mf{padding:16px 14px 16px 0;border-right:1px solid var(--line-2)}
.menu-facts .mf:last-child{border-right:0;padding-right:0}
.menu-facts .mf b{
  display:block;font-family:var(--font-en);font-size:26px;font-weight:700;color:#fff;
  line-height:1;letter-spacing:-.02em;
}
.menu-facts .mf b i{font-style:normal;font-size:.46em;color:var(--hot);margin-left:2px}
.menu-facts .mf span{display:block;margin-top:8px;font-size:11px;color:var(--mute-3);letter-spacing:.04em}

.menu-aux{display:flex;flex-direction:column;gap:26px}
.menu-group{min-width:0}

/* 产品分类：1px 网格线做成一整块，和主导航的线条列表明确区分 */
.menu-cats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:rgba(255,255,255,.085);border:1px solid rgba(255,255,255,.085);
}
.menu-cats a{
  background:#0A0E14;padding:15px 16px;display:flex;flex-direction:column;gap:4px;
  transition:.22s var(--ease);
}
.menu-cats a b{font-size:14px;font-weight:700;color:#fff;letter-spacing:.02em;transition:.22s}
.menu-cats a span{font-family:var(--font-en);font-size:10px;letter-spacing:.16em;color:var(--mute-3);text-transform:uppercase;transition:.22s}
.menu-cats a:hover{background:#121922}
.menu-cats a:hover b{color:var(--hot-2)}
.menu-cats a:hover span{color:var(--mute-2)}

/* 联系方式：独立成卡，图标 + 标签 + 号码三层 */
.menu-contact{border:1px solid var(--line);background:rgba(255,255,255,.022);padding:2px 20px 18px}
.mc-row{display:flex;align-items:center;gap:14px;padding:11px 0;border-bottom:1px solid var(--line-2)}
.mc-row .ic{
  width:34px;height:34px;flex:none;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--hot);
}
.mc-row .ic svg{width:14px;height:14px}
.mc-row .tx{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.mc-row .tx small{font-size:11px;color:var(--mute-2);letter-spacing:.08em}
.mc-row .tx b{font-family:var(--font-en);font-size:16.5px;font-weight:700;color:#fff;letter-spacing:.01em;transition:.22s}
.mc-row:hover .tx b{color:var(--hot-2)}
.mc-row.hot .tx b{color:var(--hot-2)}
.menu-contact .btn{margin-top:20px}

.menu-foot{
  flex:none;display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  padding:16px var(--gutter);border-top:1px solid var(--line-2);
  font-size:11px;letter-spacing:.16em;color:var(--mute-3);text-transform:uppercase;
}
.menu-foot .dot{width:4px;height:4px;background:var(--hot);transform:rotate(45deg)}

/* ===================== Hero 侧栏与电话条 ===================== */
.hero-rail{
  position:absolute;right:34px;top:50%;transform:translateY(-50%);z-index:4;
  writing-mode:vertical-rl;font-size:11px;letter-spacing:.42em;color:var(--mute-2);
  text-transform:uppercase;padding-left:16px;border-left:1px solid var(--line);
  display:flex;align-items:center;gap:18px;height:300px;
}
.hero-rail i{width:1px;height:56px;background:linear-gradient(180deg,var(--hot),transparent);display:block}

.hero-tels{
  display:flex;align-items:center;gap:26px;flex-wrap:wrap;margin-top:34px;
  padding-top:22px;border-top:1px solid var(--line-2);
}
.hero-tels .ht{display:flex;align-items:center;gap:9px;color:var(--mute);font-size:13.5px}
.hero-tels .ht svg{width:14px;height:14px;color:var(--mute-2);flex:none}
.hero-tels .ht b{font-family:var(--font-en);font-size:15px;color:#DCE3EA;font-weight:700;letter-spacing:.02em}
.hero-tels .ht.hot svg{color:var(--hot)}
.hero-tels .ht.hot b{color:var(--hot-2)}
.hero-tels .ht:hover b{color:var(--hot-2)}
/* ===================== 区块骨架 ===================== */
.section{padding:112px 0}
.section-sm{padding:76px 0}
.section-paper{background:var(--paper);color:#0B0F14}
.section-paper .rule{background:var(--paper-3)}
.section-paper .display{color:#0B0F14}
.section-paper .lead{color:var(--mute-2)}
.section-paper .dim{color:var(--mute-2)}
.section-ink2{background:radial-gradient(120% 70% at 50% 0%,rgba(70,185,204,.075),transparent 62%),linear-gradient(180deg,#0D1218 0%,#090D12 100%)}

/* 区块标题（编辑式：编号 + 标题 + 说明） */
.masthead{margin-bottom:64px}
.masthead-top{display:flex;align-items:baseline;gap:22px;margin-bottom:22px}
.masthead-no{
  font-family:var(--font-en);font-size:13px;font-weight:700;color:var(--hot);
  letter-spacing:.22em;padding-top:6px;
}
.masthead-line{
  flex:1;height:1px;position:relative;top:-6px;
  background:linear-gradient(90deg,rgba(255,90,31,.6) 0%,rgba(255,90,31,.14) 13%,rgba(255,255,255,.11) 42%,rgba(255,255,255,.07) 100%);
}
.section-paper .masthead-line{background:linear-gradient(90deg,rgba(255,90,31,.65) 0%,rgba(255,90,31,.16) 13%,var(--paper-3) 42%)}
.masthead-sub{margin-top:24px;max-width:820px}

/* 巨型描边序号：章节右上角的水印编号，由 CSS 计数器自动生成，
   和区块左上角的 "01 / WHAT WE DO" 小编号一一对应。 */
main{counter-reset:secnum}
.masthead{position:relative;counter-increment:secnum}
.masthead::after{
  content:counter(secnum,decimal-leading-zero);
  position:absolute;right:0;top:16px;z-index:0;
  font-family:var(--font-en);font-size:clamp(78px,10.5vw,160px);font-weight:800;
  line-height:.82;letter-spacing:-.05em;
  color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.085);
  pointer-events:none;user-select:none;
}
.masthead-top,.masthead h2,.masthead-sub{position:relative;z-index:1}
.section-paper .masthead::after{-webkit-text-stroke-color:rgba(11,15,20,.14)}


/* ===================== Hero ===================== */
.hero{
  position:relative;background:var(--ink);overflow:hidden;
  min-height:min(880px,94vh);display:flex;flex-direction:column;
}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.62;transform:scale(1.04)}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(94deg,rgba(7,9,12,.97) 0%,rgba(7,9,12,.9) 36%,rgba(10,13,18,.58) 68%,rgba(10,13,18,.34) 100%),
    linear-gradient(0deg,rgba(7,9,12,.95),rgba(7,9,12,.08) 55%);
}
.hero-ruler{
  position:absolute;inset:0;opacity:.055;
  background-image:linear-gradient(90deg,#fff 1px,transparent 1px);
  background-size:104px 100%;
}
.hero .container{position:relative;z-index:3;flex:1;display:flex;flex-direction:column;justify-content:center;padding-top:104px;padding-bottom:64px;width:100%}
.hero-kicker{
  display:flex;align-items:center;gap:14px;margin-bottom:34px;
  font-size:12.5px;letter-spacing:.2em;color:var(--mute);text-transform:uppercase;font-weight:600;
}
.hero-kicker span{color:var(--hot)}
.hero-kicker i{flex:1;height:1px;background:linear-gradient(90deg,rgba(70,185,204,.55),rgba(255,255,255,.08) 60%);max-width:160px}
.hero h1{font-size:clamp(38px,7.2vw,100px);font-weight:800;line-height:1.07;letter-spacing:-.03em;color:#fff}
.hero h1 .ln{display:block}
.hero h1 .ln-sub{font-size:.5em;color:#8FA0B1;letter-spacing:.08em;line-height:1.5;margin:.22em 0 .06em;font-weight:700}
.hero h1 em{font-style:normal;color:var(--hot)}
.hero-desc{
  margin-top:32px;font-size:clamp(15.5px,1.5vw,19px);line-height:1.95;color:#AEB8C4;
  max-width:640px;border-left:2px solid var(--hot);padding-left:22px;
}
.hero-actions{display:flex;gap:14px;margin-top:44px;flex-wrap:wrap}

.hero-foot{
  position:relative;left:0;right:0;bottom:auto;z-index:4;flex:none;
  border-top:1px solid var(--line);background:rgba(7,9,12,.62);backdrop-filter:blur(8px);
}
.hero-foot .container{display:grid;grid-template-columns:repeat(4,1fr)}
.hf{padding:26px 24px 26px 0;border-right:1px solid var(--line-2)}
.hf:last-child{border-right:0}
.hf:first-child{padding-left:0}
.hf b{
  display:block;font-family:var(--font-en);font-size:clamp(24px,2.6vw,38px);font-weight:700;
  color:#fff;line-height:1;letter-spacing:-.02em;
}
.hf b i{font-style:normal;font-size:.5em;color:var(--hot);margin-left:2px}
.hf span{display:block;margin-top:9px;font-size:12.5px;color:var(--mute-2);letter-spacing:.06em}

/* ===================== 滚动条幅 ===================== */
.marquee{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--ink-2);overflow:hidden;padding:20px 0}
.marquee-track{display:flex;width:max-content;animation:mq 40s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{
  display:inline-flex;align-items:center;gap:34px;padding:0 34px;
  font-family:var(--font-en);font-size:13px;letter-spacing:.16em;color:var(--mute-2);
  text-transform:uppercase;white-space:nowrap;
}
.marquee-item::after{content:"";width:5px;height:5px;background:var(--hot);transform:rotate(45deg)}
.marquee-item:nth-child(2n)::after{background:var(--cool)}
@keyframes mq{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ===================== 我们做什么（能力说明） ===================== */
.what{display:grid;grid-template-columns:.95fr 1.05fr;gap:76px;align-items:start}
.what-lead{font-size:clamp(19px,2vw,27px);line-height:1.72;font-weight:600;color:#fff;letter-spacing:-.01em}
.what-lead em{font-style:normal;color:var(--hot)}
.what-list{margin-top:38px}
.what-item{
  display:grid;grid-template-columns:54px 1fr;gap:20px;
  padding:26px 0;border-top:1px solid var(--line);
}
.what-item:last-child{border-bottom:1px solid var(--line)}
.what-item .no{font-family:var(--font-en);font-size:12px;font-weight:700;color:var(--hot);letter-spacing:.18em;padding-top:5px}
.what-item h3{font-size:19px;font-weight:700;color:#fff;margin-bottom:8px;letter-spacing:.01em}
.what-item p{font-size:14.8px;color:var(--mute);line-height:1.86}
.what-item em{font-style:normal;color:#D6DDE5;font-weight:600}

.flow{display:grid;gap:0}
.flow-step{
  display:grid;grid-template-columns:120px 1fr;gap:28px;align-items:start;
  padding:30px 0;border-top:1px solid var(--line);
}
.flow-step:last-child{border-bottom:1px solid var(--line)}
.flow-tag{
  font-family:var(--font-en);font-size:11.5px;font-weight:700;letter-spacing:.18em;
  color:var(--hot);padding-top:6px;
}
.flow-step h3{font-size:17.5px;font-weight:700;color:#fff;margin-bottom:8px}
.flow-step p{font-size:14.5px;color:var(--mute);line-height:1.85}

/* ===================== 产品目录索引 ===================== */
.plist{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:56px;align-items:start}
.prow{
  display:grid;grid-template-columns:52px 250px minmax(0,1fr) 132px 26px;
  align-items:center;gap:18px;
  padding:26px 14px 26px 0;border-bottom:1px solid var(--line);
  transition:background .3s var(--ease),padding-left .3s var(--ease);
  position:relative;
}
.prow:first-child{border-top:1px solid var(--line)}
.prow::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--hot);
  transform:scaleY(0);transform-origin:center;transition:transform .34s var(--ease);
}
.prow:hover{background:rgba(255,255,255,.028);padding-left:14px}
.prow:hover::before{transform:scaleY(1)}
.prow-no{font-family:var(--font-en);font-size:12px;font-weight:700;color:var(--mute-3);letter-spacing:.14em}
.prow:hover .prow-no{color:var(--hot)}
.prow-id{display:flex;flex-direction:column;gap:3px}
.prow-model{font-family:var(--font-en);font-size:19px;font-weight:700;color:#fff;letter-spacing:.01em}
.prow-name{font-size:13.5px;color:var(--mute-2);letter-spacing:.02em}
.prow:hover .prow-name{color:var(--mute)}
.prow-spec{font-size:13.5px;color:var(--mute);font-family:var(--font-en);letter-spacing:.02em;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.prow-cat{font-size:11.5px;color:var(--cool);text-align:right;letter-spacing:.08em;font-weight:600}
.prow-arrow{font-size:17px;color:var(--mute-3);transition:transform .3s var(--ease),color .3s}
.prow:hover .prow-arrow{color:var(--hot);transform:translateX(5px)}

.plist-preview{position:sticky;top:104px}
.pv-frame{
  position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--ink-3);border:1px solid var(--line);
}
.pv-frame img{width:100%;height:100%;object-fit:cover;transition:opacity .3s var(--ease)}
.pv-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(0deg,rgba(7,9,12,.55),transparent 46%);
}
/* 双图拼贴：大图 + 挂在右下角的小图 */
.photo-mosaic{position:relative;margin-bottom:46px}
.pm-sub{
  position:absolute;right:0;bottom:-46px;width:38%;margin:0;
  border:1px solid var(--line);background:var(--ink-3);z-index:3;
}
.pm-sub img{display:block;width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.pm-sub figcaption{
  padding:9px 12px;font-size:11px;color:var(--mute-2);letter-spacing:.06em;
  border-top:1px solid var(--line-2);background:rgba(7,9,12,.72);
}
.pv-cap{margin-top:18px;display:flex;justify-content:space-between;align-items:baseline;gap:16px}
.pv-cap b{font-family:var(--font-en);font-size:17px;color:#fff;font-weight:700}
.pv-cap span{font-size:13px;color:var(--mute-2)}

/* ===================== 大数字 ===================== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--paper-3);position:relative}
.stats::before{
  content:"";position:absolute;left:0;top:-1px;width:26%;height:2px;
  background:linear-gradient(90deg,var(--hot),rgba(255,90,31,0));
}
.stat{padding:44px 30px 44px 0;border-right:1px solid var(--paper-3)}
.stat:last-child{border-right:0}
.stat b{
  display:block;font-family:var(--font-en);font-size:clamp(38px,5vw,74px);font-weight:700;
  line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1.2px rgba(11,15,20,.45);
}
.stat b i{font-style:normal;-webkit-text-stroke:0;color:var(--cool-deep);font-size:.46em;margin-left:3px}
.stats-dark{border-color:var(--line)}
.stats-dark .stat{border-color:var(--line)}
.stats-dark .stat b{-webkit-text-stroke-color:rgba(255,255,255,.4)}
.stats-dark .stat b i{color:var(--cool)}
.stats-dark .stat span{color:var(--mute)}
.stats-dark .stat em{color:var(--mute-2)}
.stat span{display:block;margin-top:16px;font-size:14px;color:var(--mute-2)}
.stat em{display:block;margin-top:6px;font-size:12.5px;color:var(--mute-2);opacity:.75}

/* ===================== 满幅照片断点 ===================== */
.band{
  position:relative;overflow:hidden;isolation:isolate;display:flex;align-items:center;min-height:470px;
}
.band-bg{position:absolute;inset:0;z-index:-2}
.band-bg img{width:100%;height:100%;object-fit:cover;object-position:center 45%}
.band::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(90deg,rgba(7,9,12,.97) 0%,rgba(7,9,12,.88) 36%,rgba(9,12,17,.55) 70%,rgba(9,12,17,.34) 100%),
    linear-gradient(0deg,rgba(7,9,12,.7),rgba(7,9,12,.05) 60%);
}
.band-inner{position:relative;z-index:2;padding:88px 0;width:100%}
.band-tag{
  display:inline-block;font-family:var(--font-en);font-size:11.5px;font-weight:700;
  letter-spacing:.24em;color:var(--cool);
}
.band-quote{
  margin-top:22px;font-size:clamp(28px,4.4vw,58px);font-weight:800;color:#fff;
  line-height:1.26;letter-spacing:-.025em;max-width:17em;
}
.band-desc{margin-top:24px;max-width:560px;font-size:16px;line-height:1.9;color:#AEB8C4}
.band .btn{margin-top:34px}

/* ===================== 行业场景 ===================== */
.scenes{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.scene{
  position:relative;grid-column:span 4;min-height:330px;overflow:hidden;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:28px;color:#fff;isolation:isolate;
}
.scene.wide{grid-column:span 6}
.scene.tall{grid-column:span 4;min-height:430px}
.scene img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .8s var(--ease)}
.scene::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(0deg,rgba(7,9,12,.93) 0%,rgba(7,9,12,.45) 55%,rgba(7,9,12,.2) 100%)}
.scene:hover img{transform:scale(1.07)}
.scene h3{font-size:20px;font-weight:700;letter-spacing:.02em}
.scene p{margin-top:8px;font-size:13.5px;color:#AEB8C4;line-height:1.7}
.scene .cat{
  position:absolute;top:22px;left:22px;z-index:2;
  font-family:var(--font-en);font-size:11px;letter-spacing:.2em;color:var(--hot-2);font-weight:700;
}

/* ===================== 技术纵深 ===================== */
.deep{display:grid;grid-template-columns:1.05fr .95fr;gap:76px;align-items:start}
.deep h3{font-size:clamp(22px,2.5vw,32px);font-weight:700;line-height:1.42;color:#0B0F14;letter-spacing:-.01em}
.deep p{margin-top:18px;font-size:15.5px;line-height:2;color:#3F4753}
.deep p strong{color:#0B0F14;font-weight:700}
.deep-media{position:relative;border:1px solid var(--paper-3);overflow:hidden}
.deep-media img{width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.deep-tag{
  position:absolute;left:0;bottom:0;background:var(--cool-deep);color:#fff;padding:18px 24px;
  font-family:var(--font-en);font-size:12px;letter-spacing:.14em;font-weight:700;
}
.spec-sheet{margin-top:40px;border-top:1px solid #0B0F14}
.spec-sheet tr{border-bottom:1px solid var(--paper-3)}
.spec-sheet th{
  width:210px;text-align:left;padding:15px 20px 15px 0;font-size:13.5px;color:var(--mute-2);font-weight:600;
}
.spec-sheet td{padding:15px 0;font-size:14.5px;color:#0B0F14;font-weight:600;font-family:var(--font-en);letter-spacing:.01em}
.note{margin-top:16px;font-size:12.5px;color:var(--mute-2);line-height:1.75}

/* ===================== 新闻列表（编辑式） ===================== */
.nlist{border-top:1px solid var(--line)}
.nrow{
  display:grid;grid-template-columns:150px 1fr 132px 26px;gap:28px;align-items:center;
  padding:30px 0;border-bottom:1px solid var(--line);
  transition:padding-left .3s var(--ease),background .3s var(--ease);
  position:relative;
}
.nrow::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--hot);
  transform:scaleY(0);transition:transform .34s var(--ease);
}
.nrow:hover{background:rgba(255,255,255,.028);padding-left:16px}
.nrow:hover::before{transform:scaleY(1)}
.nrow-date{font-family:var(--font-en);font-size:14px;color:var(--mute-2);letter-spacing:.06em;font-weight:600}
.nrow-date b{display:block;font-size:30px;color:#fff;font-weight:700;line-height:1.1;letter-spacing:-.02em;margin-bottom:2px}
.nrow-title{font-size:18px;font-weight:700;color:#fff;line-height:1.6;letter-spacing:.01em;transition:color .25s}
.nrow:hover .nrow-title{color:var(--hot-2)}
.nrow-excerpt{font-size:13.8px;color:var(--mute);line-height:1.78;margin-top:7px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nrow-cat{font-size:12.5px;color:var(--cool);text-align:right;letter-spacing:.06em;font-weight:600}
.nrow-arrow{font-size:16px;color:var(--mute-3);transition:transform .3s var(--ease),color .3s}
.nrow:hover .nrow-arrow{color:var(--hot);transform:translateX(5px)}
/* 头条新闻条：最新一篇带封面图，底下的其余几条是编辑式行 */
.nfeat{
  display:grid;grid-template-columns:1.12fr 1fr;
  border:1px solid var(--line);margin-bottom:30px;overflow:hidden;
  transition:border-color .3s var(--ease);
}
.nfeat:hover{border-color:var(--mute-3)}
.nfeat .nf-media{position:relative;overflow:hidden;min-height:330px}
.nfeat .nf-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease)}
.nfeat:hover .nf-media img{transform:scale(1.05)}
.nfeat .nf-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,9,12,.12),rgba(7,9,12,.72))}
.nfeat .nf-body{
  padding:36px 38px;display:flex;flex-direction:column;justify-content:center;
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.006));
}
.nf-tag{font-family:var(--font-en);font-size:11px;font-weight:700;letter-spacing:.2em;color:var(--hot-2)}
.nfeat h3{margin-top:16px;font-size:clamp(20px,2.1vw,28px);font-weight:700;color:#fff;line-height:1.44;letter-spacing:-.01em}
.nfeat p{margin-top:14px;font-size:14.5px;color:var(--mute);line-height:1.85}
.nf-meta{
  margin-top:22px;padding-top:18px;border-top:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.nf-meta span{font-family:var(--font-en);font-size:12.5px;color:var(--mute-2);letter-spacing:.06em}
.nf-meta i{font-style:normal;color:var(--hot);font-size:16px;transition:transform .3s var(--ease)}
.nfeat:hover .nf-meta i{transform:translateX(5px)}

/* ===================== 分页（新闻列表） ===================== */
.cnt-sub{margin-left:14px;padding-left:14px;border-left:1px solid var(--line);
  font-family:var(--font-en);font-size:12px;letter-spacing:.1em;color:var(--mute-2)}
.pager{
  display:flex;align-items:center;justify-content:center;gap:22px;flex-wrap:wrap;
  margin-top:52px;padding-top:30px;border-top:1px solid var(--line);
}
.pg-nums{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.pg-num,.pg-step{
  min-width:38px;height:38px;padding:0 12px;background:transparent;
  border:1px solid var(--line);color:var(--mute);cursor:pointer;
  font-family:var(--font-en);font-size:13px;font-weight:700;letter-spacing:.08em;
  transition:border-color .22s,color .22s,background .22s;
}
.pg-step{font-family:var(--font-sans);font-size:13px;letter-spacing:.06em;padding:0 18px}
.pg-num:hover,.pg-step:hover:not(:disabled){border-color:var(--hot);color:#fff}
.pg-num.active{background:var(--hot);border-color:var(--hot);color:#fff}
.pg-step:disabled{opacity:.3;cursor:not-allowed}
.pg-gap{padding:0 6px;color:var(--mute-3);font-size:14px;user-select:none}

/* ===================== CTA ===================== */
.cta{background:var(--hot);color:#fff;position:relative;overflow:hidden}
.cta::before{
  content:"";position:absolute;inset:0;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:72px 72px;
}
.cta .container{position:relative;z-index:2;display:flex;justify-content:space-between;align-items:center;gap:48px;flex-wrap:wrap;padding-top:74px;padding-bottom:74px}
.cta h2{font-size:clamp(26px,3.4vw,46px);font-weight:800;letter-spacing:-.02em;line-height:1.2;color:#fff}
.cta p{margin-top:16px;font-size:16px;color:rgba(255,255,255,.85);max-width:620px;line-height:1.8}
.cta p b{color:#fff;font-family:var(--font-en);font-size:18px;font-weight:700;letter-spacing:.02em;margin:0 2px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta .btn-line{border-color:rgba(255,255,255,.55);color:#fff}
.cta .btn-line:hover{background:#fff;color:var(--hot);border-color:#fff}
.cta .btn-dark{background:#0B0F14;color:#fff}
.cta .btn-dark:hover{background:#000}

/* ===================== 页脚 ===================== */
.footer{background:var(--ink-2);border-top:1px solid var(--line)}
.footer-main{padding:84px 0 56px}
.f-logo{display:flex;align-items:center;gap:13px}
.footer .logo-mark{width:44px;height:44px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:56px}
.f-col h3{font-size:13px;color:#fff;font-weight:700;margin-bottom:22px;letter-spacing:.14em;text-transform:uppercase}
.f-col li{margin-bottom:11px}
.f-col li a{color:var(--mute);transition:.2s;display:inline-block;font-size:14px}
.f-col li a:hover{color:#fff;transform:translateX(4px)}
.f-about p{margin-top:22px;line-height:1.95;max-width:340px;font-size:14px;color:var(--mute)}
.f-contact li{display:flex;gap:12px;margin-bottom:18px;align-items:flex-start;line-height:1.65}
.f-contact svg{width:14px;height:14px;color:var(--hot);flex:none;margin-top:5px}
.f-contact b{color:#fff;font-weight:600}
.f-contact .tel{font-size:20px;font-weight:800;color:#fff;font-family:var(--font-en);letter-spacing:.01em}
.f-contact .lb{font-size:12px;color:var(--mute-2);letter-spacing:.08em;margin-bottom:2px}

.wordmark{
  border-top:1px solid var(--line);padding:44px 0 30px;overflow:hidden;
}
.wordmark b{
  display:block;font-family:var(--font-en);font-size:clamp(44px,11.5vw,178px);font-weight:800;
  letter-spacing:-.045em;line-height:.86;color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.17);
  white-space:nowrap;
}
.footer-base{
  border-top:1px solid var(--line-2);padding:22px 0;
  font-size:12.5px;color:var(--mute-2);
}
.footer-base .container{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.footer-base a:hover{color:var(--hot-2)}

/* ===================== 内页头 ===================== */
.phero{position:relative;background:var(--ink-2);overflow:hidden;padding:88px 0 76px}
.phero::before{
  content:"";position:absolute;inset:0;opacity:.1;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:80px 80px;
}
.phero::after{
  content:"";position:absolute;right:-160px;top:-160px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,31,.2),transparent 68%);
}
.phero .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--mute-2);margin-bottom:20px;flex-wrap:wrap}
.crumb a:hover{color:#fff}
.crumb .cur{color:var(--hot-2)}
.phero h1,.phero .phero-model{font-size:clamp(30px,5.4vw,70px);font-weight:800;letter-spacing:-.03em;color:#fff;line-height:1.08}
.phero .lead{margin-top:22px;color:var(--mute);font-size:16.5px;max-width:720px;line-height:1.85}

/* ===================== 产品列表页 ===================== */
.playout{display:grid;grid-template-columns:1fr;gap:56px}
.ptoolbar{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;
  padding-bottom:22px;border-bottom:1px solid var(--line)}
.ptoolbar .cnt{font-family:var(--font-en);font-size:13px;letter-spacing:.14em;color:var(--mute-2)}
.ptoolbar .cnt b{color:#fff;font-size:20px;font-weight:700;margin-right:6px}
.cat-tabs{display:flex;flex-wrap:wrap;gap:0;border:1px solid var(--line)}
.cat-tab{
  padding:11px 16px;background:transparent;border:0;border-right:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--mute);cursor:pointer;transition:.22s;
}
.cat-tab:last-child{border-right:0}
.cat-tab:hover{color:#fff;background:rgba(255,255,255,.04)}
.cat-tab.active{background:var(--hot);color:#fff}
.section-paper .cat-tabs{border-color:var(--paper-3)}
.section-paper .cat-tab{color:var(--mute-2);border-color:var(--paper-3)}
.section-paper .cat-tab:hover{color:#0B0F14;background:rgba(11,15,20,.04)}
.section-paper .cat-tab.active{background:var(--hot);color:#fff}

/* ---- 可选配置列表（产品详情页） ---- */
.plist-ul{border-top:1px solid var(--line)}
.plist-ul li{
  position:relative;padding:13px 0 13px 24px;border-bottom:1px solid var(--line-2);
  font-size:14.5px;color:#A9B3BF;line-height:1.75;
}
.plist-ul li::before{
  content:"";position:absolute;left:2px;top:22px;width:6px;height:6px;
  background:var(--hot);transform:rotate(45deg);
}

/* ---- 产品详情：设备用途与工作原理 ---- */
.puse{border-top:1px solid var(--line)}
.puse-row{display:grid;grid-template-columns:92px 1fr;gap:26px;padding:22px 0;border-bottom:1px solid var(--line)}
.pu-tag{
  font-family:var(--font-en);font-size:11.5px;font-weight:700;letter-spacing:.16em;
  color:var(--hot);padding-top:5px;
}
.puse-row p{font-size:15.5px;line-height:2;color:#A9B3BF}
.pmeta .chip.chip-link:hover b{color:var(--cool-2)}

/* ===================== 产品详情 ===================== */
.pgallery{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px}
.pmain{
  border:1px solid var(--line);overflow:hidden;background:var(--ink-2);aspect-ratio:4/3;position:relative;
}
.pmain img{width:100%;height:100%;object-fit:cover}
.pthumbs{display:flex;flex-direction:column;gap:12px;max-height:540px;overflow-y:auto}
.pthumb{
  border:1px solid var(--line);overflow:hidden;cursor:pointer;aspect-ratio:4/3;background:var(--ink-2);
  transition:.22s;flex:none;padding:0;position:relative;
}
.pthumb img{width:100%;height:100%;object-fit:cover}
.pthumb:hover{border-color:var(--mute-2)}
.pthumb.active{border-color:var(--hot)}
.pthumb.active::after{content:"";position:absolute;inset:0;border:2px solid var(--hot)}
.phead{margin-top:44px;padding-bottom:30px;border-bottom:1px solid var(--line)}
.pmodel{
  display:inline-block;font-family:var(--font-en);font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--hot);margin-bottom:18px;
}
.phead h1{font-size:clamp(26px,3.8vw,48px);font-weight:800;letter-spacing:-.025em;color:#fff;line-height:1.2}
.phead .lead{margin-top:20px;font-size:16.5px;color:var(--mute);line-height:1.9;max-width:900px}
.pmeta{display:flex;flex-wrap:wrap;gap:0;margin-top:26px;border-top:1px solid var(--line-2)}
.pmeta .chip{
  padding:13px 26px 13px 0;margin-right:26px;font-size:13.5px;color:var(--mute);
  border-bottom:1px solid var(--line-2);
}
.pmeta .chip b{color:#fff;font-family:var(--font-en);font-weight:700;margin-left:7px}

.pblock{margin-top:66px}
.pblock h2{
  font-size:clamp(20px,2.3vw,28px);font-weight:800;color:#fff;letter-spacing:-.01em;margin-bottom:28px;
  display:flex;align-items:center;gap:16px;
}
.pblock h2 em{font-style:normal;font-family:var(--font-en);font-size:13px;color:var(--hot);letter-spacing:.16em}
.pblock h2::after{content:"";flex:1;height:1px;background:var(--line)}
.ptext{font-size:16px;color:#A9B3BF;line-height:2.05;max-width:900px}
.ptext p{margin-bottom:16px}
.ptext strong{color:#fff}

.feats{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border-top:1px solid var(--line)}
.feat{padding:28px 30px 28px 0;border-bottom:1px solid var(--line);display:flex;gap:16px;align-items:flex-start}
.feat:nth-child(odd){padding-right:40px;border-right:1px solid var(--line)}
.feat:nth-child(even){padding-left:40px}
.feat .no{font-family:var(--font-en);font-size:11.5px;font-weight:700;color:var(--hot);letter-spacing:.14em;padding-top:5px;flex:none}
.feat b{display:block;font-size:16.5px;font-weight:700;color:#fff;margin-bottom:7px}
.feat span{font-size:14.2px;color:var(--mute);line-height:1.8}

.ptable{width:100%;border-top:1px solid var(--line)}
.ptable tr{border-bottom:1px solid var(--line-2)}
.ptable th{
  width:220px;text-align:left;padding:16px 20px 16px 0;font-size:14px;color:var(--mute-2);font-weight:600;
}
.ptable td{padding:16px 0;font-size:14.5px;color:#fff;font-family:var(--font-en);letter-spacing:.01em;font-weight:600}
.ptable td + td{color:var(--mute);font-family:var(--font);font-weight:500}

.qa{border-top:1px solid var(--line)}
.qa-item{border-bottom:1px solid var(--line)}
.qa-q{
  width:100%;text-align:left;background:none;border:0;padding:24px 44px 24px 0;font-size:17px;font-weight:700;
  color:#fff;cursor:pointer;display:flex;justify-content:space-between;gap:20px;align-items:center;position:relative;
}
.qa-q::after{
  content:"+";position:absolute;right:4px;top:50%;transform:translateY(-50%);
  font-family:var(--font-en);font-size:24px;font-weight:300;color:var(--hot);transition:transform .3s var(--ease);
}
.qa-item.open .qa-q::after{transform:translateY(-50%) rotate(45deg)}
.qa-a{max-height:0;overflow:hidden;transition:max-height .35s var(--ease)}
.qa-a p{padding:0 44px 24px 0;font-size:15px;color:var(--mute);line-height:1.95}

/* ===================== 新闻详情 ===================== */
.article{background:var(--ink-2);border:1px solid var(--line);padding:56px 64px;max-width:940px;margin:0 auto}
.article-head{padding-bottom:30px;border-bottom:1px solid var(--line);margin-bottom:38px}
.article-head .cat{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.12em;color:var(--hot);
  padding:6px 16px;border:1px solid var(--hot);margin-bottom:20px;
}
.article-head h1{font-size:clamp(24px,3.4vw,40px);font-weight:800;color:#fff;line-height:1.36;letter-spacing:-.02em}
.article-meta{display:flex;gap:24px;margin-top:20px;font-size:13px;color:var(--mute-2);flex-wrap:wrap;font-family:var(--font-en)}
.article-meta span{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.article-head .lead{margin:20px 0 0;font-size:16px;line-height:1.9;color:var(--mute);max-width:760px}
.article-cover{border:1px solid var(--line);margin-bottom:38px}
.article-cover img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.article-body{font-size:16.5px;color:#A9B3BF;line-height:2.1}
.article-body h2{
  font-size:23px;font-weight:800;color:#fff;margin:42px 0 18px;
  padding-left:16px;border-left:3px solid var(--hot);line-height:1.4;
}
.article-body h3{font-size:19px;font-weight:700;color:#fff;margin:32px 0 12px}
.article-body p{margin-bottom:20px}
.article-body strong{color:#fff;font-weight:700}
.article-body ul{margin:0 0 22px}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:11px}
.article-body ul li::before{content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;background:var(--hot);transform:rotate(45deg)}
.article-body figure{margin:30px 0}
.article-body figure img{width:100%;height:auto;border:1px solid var(--line)}
.article-body figcaption{text-align:center;font-size:13px;color:var(--mute-2);margin-top:12px}
/* 表格比手机屏宽的时候，表格自己横向滚动，页面不能被它撑开。
   英文的表格文字比中文长，同一套样式要两边都扛得住。 */
.article-body table{display:block;max-width:100%;overflow-x:auto;margin:28px 0;font-size:14.5px;-webkit-overflow-scrolling:touch}
.article-body th{background:rgba(255,255,255,.05);color:#fff;padding:13px 18px;text-align:left;font-weight:600;border:1px solid var(--line)}
.article-body td{padding:13px 18px;border:1px solid var(--line-2);color:var(--mute)}
.article-body blockquote{
  margin:30px 0;padding:22px 28px;border-left:3px solid var(--hot);background:rgba(255,255,255,.03);
  color:#D3DAE3;font-size:16px;line-height:1.9;
}
.anav{display:flex;justify-content:space-between;gap:24px;margin-top:44px;padding-top:30px;border-top:1px solid var(--line);flex-wrap:wrap}
.anav a{font-size:14.5px;color:var(--mute);max-width:46%;transition:.22s}
.anav a:hover{color:var(--hot-2)}
.anav .lbl{display:block;font-size:11.5px;color:var(--mute-2);letter-spacing:.14em;margin-bottom:6px;font-family:var(--font-en)}

/* ===================== 表单 ===================== */
.fgrid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:start}
.fcard{border:1px solid var(--line);padding:44px}
.frow{display:grid;grid-template-columns:repeat(2,1fr);gap:0 26px}
.field{margin-bottom:26px}
.field label{display:block;font-size:13px;font-weight:700;color:#fff;margin-bottom:9px;letter-spacing:.04em}
.field label i{color:var(--hot);font-style:normal;margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;padding:14px 16px;border:1px solid var(--line);background:transparent;
  font-size:15px;transition:.22s;outline:none;border-radius:0;
}
.field textarea{resize:vertical;min-height:130px;line-height:1.8}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--hot);background:rgba(255,255,255,.02)}
.field input::placeholder,.field textarea::placeholder{color:var(--mute-3)}
.field select option{background:var(--ink-2);color:#fff}
.fnote{font-size:12.5px;color:var(--mute-2);margin-top:16px;line-height:1.75}
.fmsg{margin-top:18px;padding:14px 18px;font-size:14.5px;display:none;border-left:2px solid}
.fmsg.ok{display:block;background:rgba(16,185,129,.1);border-color:#10b981;color:#6ee7b7}
.fmsg.err{display:block;background:rgba(239,68,68,.1);border-color:#ef4444;color:#fca5a5}

.icard{border:1px solid var(--line);background:var(--ink-2);padding:38px}
.icard h3{font-size:20px;font-weight:700;color:#fff;margin-bottom:12px}
.irow{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line-2);align-items:flex-start}
.irow:last-of-type{border-bottom:0}
.irow .ic{width:38px;height:38px;border:1px solid var(--line);display:grid;place-items:center;flex:none}
.irow .ic svg{width:16px;height:16px;color:var(--hot)}
.irow .lb{font-size:11.5px;color:var(--mute-2);letter-spacing:.1em;margin-bottom:3px}
.irow .vl{font-size:15.5px;color:#fff;font-weight:600;line-height:1.6;word-break:break-word}
.irow .vl.tel{font-size:25px;font-weight:800;color:var(--hot-2);font-family:var(--font-en);letter-spacing:.01em}
.mapbox{
  margin-top:24px;border:1px solid var(--line);padding:38px 26px;text-align:center;color:var(--mute-2);
}
.mapbox svg{width:34px;height:34px;color:var(--mute-3);margin:0 auto 14px}
.mapbox p{font-size:15px;color:#fff;font-weight:700;margin-bottom:8px}

/* ===================== 时间线 ===================== */
.tl{border-top:1px solid var(--line)}
.tl-item{display:grid;grid-template-columns:140px 1fr;gap:30px;padding:30px 0;border-bottom:1px solid var(--line)}
.tl-item .y{font-family:var(--font-en);font-size:12.5px;font-weight:700;color:var(--hot);letter-spacing:.16em;padding-top:5px}
.tl-item h3{font-size:18.5px;font-weight:700;color:#fff;margin-bottom:8px}
.tl-item p{font-size:14.8px;color:var(--mute);line-height:1.88}
.section-paper .tl{border-color:var(--paper-3)}
.section-paper .tl-item{border-color:var(--paper-3)}
.section-paper .tl-item h3{color:#0B0F14}
.section-paper .tl-item p{color:var(--mute-2)}

/* ===================== 返回顶部 ===================== */
.to-top{
  position:fixed;right:28px;bottom:28px;width:46px;height:46px;
  background:var(--hot);color:#fff;border:0;cursor:pointer;display:grid;place-items:center;
  opacity:0;visibility:hidden;transform:translateY(12px);transition:.3s var(--ease);z-index:90;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:#E8470C}
.to-top svg{width:17px;height:17px}

/* ===================== 手机 APP 下载浮标 =====================
   动作类元素用热橙，和返回顶部按钮叠成右下角一列；
   「仅安卓系统可用」直接写在胶囊里，不依赖背景色，任何版式下都看得清。 */
.app-dl{
  position:fixed;right:28px;bottom:88px;z-index:91;
  display:flex;align-items:center;gap:11px;
  padding:10px 17px 10px 14px;
  background:var(--hot);color:#fff;text-decoration:none;
  box-shadow:0 10px 26px rgba(255,90,31,.26);
  transition:background .25s var(--ease),transform .25s var(--ease);
}
.app-dl:hover{background:#E8470C;transform:translateY(-2px)}
.app-dl svg{width:21px;height:21px;flex:none}
.app-dl-txt{display:flex;flex-direction:column;gap:1px;line-height:1.2}
.app-dl-txt b{font-size:14px;font-weight:700;letter-spacing:.02em;color:#fff}
.app-dl-txt i{font-style:normal;font-size:10.5px;letter-spacing:.04em;color:rgba(255,255,255,.85)}

/* ===================== 手机 App 下载页 ===================== */
.appbox{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:48px;align-items:start}
.appbox-head{display:flex;align-items:center;gap:20px;margin-bottom:24px}
.appbox-head img{width:88px;height:88px;flex:none;border:1px solid var(--paper-3);border-radius:20px}
.appbox-head b{display:block;font-size:27px;font-weight:800;letter-spacing:-.015em;color:#0B0F14;line-height:1.2}
.appbox-head span{display:block;font-size:12px;letter-spacing:.14em;color:var(--mute-2);text-transform:uppercase;margin-top:6px}
.appbox h2{font-size:clamp(23px,2.9vw,33px);font-weight:800;letter-spacing:-.02em;color:#0B0F14;margin:0 0 14px;line-height:1.3}
.appbox p{font-size:15.5px;line-height:1.88;color:var(--mute-2);margin:0 0 16px}
.appdl-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-top:26px}
.appdl-tag{display:inline-flex;align-items:center;gap:8px;padding:0 16px;height:54px;border:1px solid var(--paper-3);background:#fff;color:var(--mute-2);font-size:13px;letter-spacing:.04em}
.appdl-tag i{font-style:normal;width:7px;height:7px;background:var(--hot);transform:rotate(45deg);display:block;flex:none}
.appdl-version{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:18px;padding-top:18px;border-top:1px solid var(--paper-3)}
.appdl-ver{font-size:13.5px;color:var(--mute-2);letter-spacing:.02em}
.appdl-check{
  font:inherit;font-size:13px;letter-spacing:.04em;color:var(--hot);
  background:transparent;border:1px solid var(--paper-3);padding:6px 15px;cursor:pointer;
  transition:border-color .25s var(--ease),color .25s var(--ease);
}
.appdl-check:hover{border-color:var(--hot)}
.appdl-hint{font-size:12.5px;color:var(--mute-2)}
.appdl-hint.warn{color:var(--hot)}
.appdl-qr{border:1px solid var(--paper-3);background:#fff;padding:20px;text-align:center}
.appdl-qr img{width:100%;max-width:252px;display:block;margin:0 auto}
.appdl-qr p{font-size:12.5px;color:var(--mute-2);margin:14px 0 0;line-height:1.75}
.appdl-qr b{display:block;font-size:13px;color:#0B0F14;margin-bottom:5px;letter-spacing:.02em}
.appdl-steps{margin:0 0 18px;padding:0;list-style:none;counter-reset:step}
.appdl-steps li{counter-increment:step;position:relative;padding-left:38px;margin-bottom:14px;font-size:14.5px;line-height:1.8;color:var(--mute-2)}
.appdl-steps li::before{
  content:counter(step,decimal-leading-zero);position:absolute;left:0;top:1px;
  font-family:var(--font-en);font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--hot);
  border:1px solid var(--paper-3);background:#fff;width:26px;height:26px;display:grid;place-items:center;
}
@media(max-width:900px){
  .appbox{grid-template-columns:1fr;gap:32px}
  .appdl-actions{gap:10px}
  .appdl-tag{height:46px;padding:0 14px}
}

/* ===================== 空状态 ===================== */
.empty{
  display:grid;place-items:center;gap:16px;padding:76px 24px;text-align:center;
  border:1px solid var(--line);color:var(--mute);
}
.empty svg{width:38px;height:38px;color:var(--mute-3)}
.empty p{margin:0;font-size:15px}

/* ===================== 滚动入场 ===================== */
.reveal{opacity:1;transform:none}
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* ============================================================
   背景质感系统
   ------------------------------------------------------------
   之前每一屏都是一块纯色填充，滚动时没有明暗节奏。这一层给
   每个区块配自己的"主光源 + 底纹"，再叠一层全局胶片颗粒。
   全部用 CSS 渐变和内联 SVG，不增加任何图片请求。

   用法：在 section 的 class 里加一个底纹变体
     tex-grid  左上暖光 + 96px 蓝图网格
     tex-diag  斜向细纹 + 右侧冷光
     tex-dot   26px 点阵 + 底部暖光
     tex-rule  横向扫描线 + 右上冷光
     tex-warm  纸面暖光变体（配 section-paper 用）
   ============================================================ */

/* ---- ① 全局胶片颗粒：内联 SVG turbulence，零额外请求 ---- */
body::before{
  content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size:180px 180px;
}
main,.footer{position:relative;z-index:2}

/* ---- ② 区块顶部刻度尺：图纸上的测量刻度，统一全站语气 ---- */
.section{position:relative}
.section::before{
  content:"";position:absolute;left:0;right:0;top:0;height:18px;pointer-events:none;z-index:1;
  background:
    repeating-linear-gradient(90deg,rgba(255,255,255,.20) 0 1px,transparent 1px 22px) left top/232px 8px no-repeat,
    linear-gradient(90deg,rgba(255,255,255,.14),rgba(255,255,255,.03) 46%,transparent 78%) left top/100% 1px no-repeat;
  opacity:.55;
}

/* ---- ③ 深色区块底纹 ---- */
/* 基础：96px 蓝图细网格 + 顶部冷光 */
.section{
  background-color:#07090C;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px),
    radial-gradient(110% 62% at 50% -6%,rgba(70,185,204,.055),transparent 60%),
    linear-gradient(180deg,#0A0E13 0%,#07090C 58%,#080B10 100%);
  background-size:96px 96px,96px 96px,auto,auto;
}
/* 深色次级区块 */
.section-ink2{
  background-color:#0D1218;
  background-image:
    repeating-linear-gradient(135deg,rgba(255,255,255,.022) 0 1px,transparent 1px 12px),
    radial-gradient(120% 70% at 50% 0%,rgba(70,185,204,.085),transparent 62%),
    linear-gradient(180deg,#0D1218 0%,#090D12 100%);
}
/* 纸面区块 */
.section-paper{
  background-color:var(--paper);
  background-image:
    linear-gradient(rgba(11,15,20,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(11,15,20,.03) 1px,transparent 1px),
    radial-gradient(66% 44% at 100% 0%,rgba(70,185,204,.11),transparent 62%),
    linear-gradient(180deg,#FFFFFF 0%,#F2F3F5 100%);
  background-size:56px 56px,56px 56px,auto,auto;
}
.section-paper::before{
  background:
    repeating-linear-gradient(90deg,rgba(11,15,20,.22) 0 1px,transparent 1px 22px) left top/232px 8px no-repeat,
    linear-gradient(90deg,rgba(11,15,20,.16),rgba(11,15,20,.03) 46%,transparent 78%) left top/100% 1px no-repeat;
}

/* 底纹变体 */
.section.tex-grid{
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px),
    radial-gradient(86% 56% at 0% 0%,rgba(255,90,31,.12),transparent 58%),
    radial-gradient(58% 48% at 100% 100%,rgba(70,185,204,.05),transparent 62%),
    linear-gradient(180deg,#0A0E13 0%,#07090C 100%);
  background-size:96px 96px,96px 96px,auto,auto,auto;
}
.section.tex-diag{
  background-color:#090D12;
  background-image:
    repeating-linear-gradient(135deg,rgba(255,255,255,.026) 0 1px,transparent 1px 10px),
    radial-gradient(72% 56% at 100% 8%,rgba(70,185,204,.085),transparent 62%),
    linear-gradient(180deg,#0D1218 0%,#090D12 100%);
}
.section.tex-dot{
  background-color:#07090C;
  background-image:
    radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px),
    radial-gradient(120% 46% at 50% 104%,rgba(255,90,31,.11),transparent 62%),
    linear-gradient(180deg,#080B10 0%,#07090C 100%);
  background-size:26px 26px,auto,auto;
}
.section.tex-rule{
  background-color:#07090C;
  background-image:
    repeating-linear-gradient(0deg,rgba(255,255,255,.018) 0 1px,transparent 1px 5px),
    radial-gradient(86% 58% at 96% 0%,rgba(70,185,204,.08),transparent 60%),
    linear-gradient(180deg,#0A0E13 0%,#07090C 100%);
}
.section.tex-deep{
  background-color:#081419;
  background-image:
    radial-gradient(rgba(255,255,255,.075) 1px,transparent 1px),
    radial-gradient(120% 50% at 50% 104%,rgba(70,185,204,.18),transparent 64%),
    linear-gradient(180deg,#0A1A21 0%,#071217 100%);
  background-size:26px 26px,auto,auto;
}
.section.section-paper.tex-warm{
  background-image:
    linear-gradient(rgba(11,15,20,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(11,15,20,.03) 1px,transparent 1px),
    radial-gradient(58% 48% at 0% 100%,rgba(255,90,31,.10),transparent 62%),
    linear-gradient(180deg,#FFFFFF 0%,#F3F4F6 100%);
  background-size:56px 56px,56px 56px,auto,auto;
}

/* ---- ④ Hero：加一层方向性光与两级蓝图网格 ---- */
.hero{
  background:
    radial-gradient(58% 44% at 10% 92%,rgba(255,90,31,.17),transparent 66%),
    radial-gradient(44% 40% at 94% 6%,rgba(70,185,204,.13),transparent 68%),
    linear-gradient(180deg,#080B10 0%,#05070A 100%);
}
.hero-bg img{opacity:.58}
.hero-bg::after{
  background:
    radial-gradient(110% 80% at 18% 104%,rgba(255,90,31,.12),transparent 56%),
    linear-gradient(94deg,rgba(7,9,12,.97) 0%,rgba(7,9,12,.9) 36%,rgba(10,13,18,.56) 68%,rgba(10,13,18,.3) 100%),
    linear-gradient(0deg,rgba(7,9,12,.95),rgba(7,9,12,.06) 55%);
}
.hero-ruler{
  opacity:1;
  background-image:
    linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.13) 1px,transparent 1px);
  background-size:104px 100%,104px 100%,520px 100%;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),rgba(0,0,0,.2) 56%,transparent 86%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),rgba(0,0,0,.2) 56%,transparent 86%);
}
.hero-foot{background:linear-gradient(180deg,rgba(7,9,12,.5),rgba(7,9,12,.82))}

/* ---- ⑤ 满幅照片断点 ---- */
.band::before{
  content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px),
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:104px 100%,100% 104px;
  -webkit-mask-image:linear-gradient(90deg,transparent 38%,#000 100%);
  mask-image:linear-gradient(90deg,transparent 38%,#000 100%);
}
.band::after{
  background:
    radial-gradient(76% 66% at 88% 10%,rgba(70,185,204,.10),transparent 62%),
    linear-gradient(90deg,rgba(7,9,12,.97) 0%,rgba(7,9,12,.88) 36%,rgba(9,12,17,.52) 70%,rgba(9,12,17,.3) 100%),
    linear-gradient(0deg,rgba(7,9,12,.7),rgba(7,9,12,.04) 60%);
}
.band{border-top:1px solid rgba(255,255,255,.08)}

/* ---- ⑥ 滚动条幅 ---- */
.marquee{
  background-color:#0B0F15;
  background-image:
    repeating-linear-gradient(135deg,rgba(255,255,255,.025) 0 1px,transparent 1px 10px),
    linear-gradient(90deg,rgba(255,90,31,.09),transparent 30%,transparent 70%,rgba(70,185,204,.09)),
    linear-gradient(180deg,#0D1218 0%,#090D12 100%);
}

/* ---- ⑦ CTA：暖光 + 仪表环 ---- */
.cta{
  background:
    radial-gradient(66% 118% at 88% -6%,rgba(255,170,105,.32),transparent 62%),
    radial-gradient(58% 100% at -2% 104%,rgba(140,20,0,.30),transparent 60%),
    linear-gradient(118deg,#FF5A1F 0%,#F2470F 52%,#DE3705 100%);
}
.cta::before{
  opacity:.16;
  background-image:
    linear-gradient(rgba(255,255,255,.75) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.75) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:radial-gradient(120% 100% at 100% 0%,#000,transparent 72%);
  mask-image:radial-gradient(120% 100% at 100% 0%,#000,transparent 72%);
}
.cta::after{
  content:"";position:absolute;right:-150px;top:-170px;width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 0 0 46px rgba(255,255,255,.05),0 0 0 100px rgba(255,255,255,.028);
  pointer-events:none;
}

/* ---- ⑧ 页脚与内页头 ---- */
.footer{
  background-color:#0A0E13;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px),
    radial-gradient(66% 58% at 12% 0%,rgba(255,90,31,.07),transparent 60%),
    linear-gradient(180deg,#0C1117 0%,#080B10 100%);
  background-size:96px 96px,96px 96px,auto,auto;
}
.phero{
  background-color:#0A0E13;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px),
    radial-gradient(46% 70% at 88% -4%,rgba(255,90,31,.17),transparent 64%),
    radial-gradient(48% 58% at 2% 104%,rgba(70,185,204,.10),transparent 62%),
    linear-gradient(180deg,#0C1117 0%,#080B10 100%);
  background-size:80px 80px,80px 80px,auto,auto,auto;
}
.phero::before{
  opacity:1;
  background:
    repeating-linear-gradient(90deg,rgba(255,255,255,.18) 0 1px,transparent 1px 22px) left top/232px 8px no-repeat,
    linear-gradient(90deg,rgba(255,255,255,.13),rgba(255,255,255,.03) 46%,transparent 78%) left top/100% 1px no-repeat;
}

/* ---- ⑨ 导航面板 ---- */
.menu-panel{
  background:
    radial-gradient(78% 86% at 86% -12%,rgba(255,90,31,.15),transparent 56%),
    radial-gradient(58% 66% at 6% 112%,rgba(70,185,204,.10),transparent 60%),
    linear-gradient(rgba(255,255,255,.024) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.024) 1px,transparent 1px),
    linear-gradient(180deg,#0C1117 0%,#070A0E 100%);
  background-size:auto,auto,104px 104px,104px 104px,auto;
}
.menu-cats a{background:linear-gradient(180deg,#0C1119 0%,#090D13 100%)}
.menu-cats a:hover{background:linear-gradient(180deg,#141C26 0%,#0F151D 100%)}
.menu-contact{background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.012))}

/* ---- ⑩ 卡片与列表的表面质感 ---- */
.article{background:linear-gradient(180deg,#101720 0%,#0A0E14 100%)}
.icard,.fcard{background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01))}
.icard{background-color:var(--ink-2)}
.pv-frame::before{
  content:"";position:absolute;inset:16px;z-index:2;pointer-events:none;
  border:1px solid rgba(255,255,255,.16);
}
.scene::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;z-index:2;
  background:linear-gradient(90deg,var(--hot),rgba(255,90,31,0) 62%);
}
.what-item{position:relative;transition:background .28s var(--ease),padding-left .28s var(--ease)}
.what-item:hover{background:linear-gradient(90deg,rgba(255,90,31,.075),rgba(255,90,31,0) 56%);padding-left:16px}
.stat{background:linear-gradient(180deg,rgba(11,15,20,.022),rgba(11,15,20,0) 70%)}

/* 指标锚定卡：把规格口径从正文里提出来，填住空白也方便横向比对 */
.spec-anchor{
  margin-top:42px;border:1px solid var(--line);padding:28px 30px 30px;
  background:linear-gradient(180deg,rgba(255,255,255,.042),rgba(255,255,255,.008));
  position:relative;
}
.spec-anchor::before{
  content:"";position:absolute;left:-1px;top:-1px;width:88px;height:2px;background:var(--hot);
}
.sa-head{padding-bottom:18px;border-bottom:1px solid var(--line-2)}
.sa-tag{font-family:var(--font-en);font-size:11px;font-weight:700;letter-spacing:.2em;color:var(--hot)}
.sa-head b{display:block;margin-top:9px;font-size:16.5px;font-weight:700;color:#fff}
.sa-head small{display:block;margin-top:7px;font-size:12.5px;color:var(--mute-2);line-height:1.65}
.sa-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 34px;margin-top:4px}
.sa-grid>div{
  display:flex;justify-content:space-between;align-items:baseline;gap:16px;
  padding:13px 0;border-bottom:1px solid var(--line-2);
}
.sa-grid dt{font-size:13px;color:var(--mute-2);flex:none}
.sa-grid dd{margin:0;font-family:var(--font-en);font-size:14px;font-weight:600;color:#fff;text-align:right}

/* 直拨块：联系页左栏底部的三条电话线 */
.quick-call{
  margin-top:34px;border:1px solid var(--line);padding:26px 28px 24px;
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.008));
  position:relative;
}
.quick-call::before{
  content:"";position:absolute;left:-1px;top:-1px;width:88px;height:2px;background:var(--hot);
}
.qc-tag{font-family:var(--font-en);font-size:11px;font-weight:700;letter-spacing:.2em;color:var(--hot)}
.quick-call>b{display:block;margin-top:9px;font-size:17px;font-weight:700;color:#fff}
.qc-rows{margin-top:16px;border-top:1px solid var(--line-2)}
.qc-row{
  display:grid;grid-template-columns:1fr auto 20px;align-items:center;gap:16px;
  padding:15px 0;border-bottom:1px solid var(--line-2);transition:.24s var(--ease);
}
.qc-row:hover{padding-left:8px}
.qc-lb{font-size:13.5px;color:var(--mute-2)}
.qc-no{font-family:var(--font-en);font-size:20px;font-weight:700;color:#fff;letter-spacing:.01em}
.qc-row.hot .qc-no{color:var(--hot-2)}
.qc-row i{font-style:normal;color:var(--mute-3);transition:.24s}
.qc-row:hover i{color:var(--hot);transform:translateX(3px)}
.qc-note{margin-top:16px;font-size:12.5px;color:var(--mute-2);line-height:1.7}

/* ===================== 响应式 ===================== */
@media (max-width:1180px){
  .what,.deep,.fgrid{grid-template-columns:1fr;gap:48px}
  .plist{grid-template-columns:1fr;gap:40px}
  .plist-preview{position:static;display:none}
  .prow{grid-template-columns:44px 220px minmax(0,1fr) 26px}
  .prow-cat{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:44px}
  .scenes .scene,.scenes .scene.wide,.scenes .scene.tall{grid-column:span 6;min-height:300px}
}
@media (max-width:1024px){
  :root{--gutter:32px}
  .head-tel{display:none}
  .menu-body{grid-template-columns:1fr;gap:30px;padding:30px var(--gutter)}
  .menu-aux{gap:30px}
  .section{padding:84px 0}
  .hero-foot .container{grid-template-columns:1fr 1fr}
  .hf{border-bottom:1px solid var(--line-2);padding:20px 20px 20px 0}
  .hf:nth-child(2n){border-right:0}
  .stats{grid-template-columns:1fr 1fr}
  .stat{border-bottom:1px solid var(--paper-3)}
  .stat:nth-child(2n){border-right:0;padding-left:24px}
  .pgallery{grid-template-columns:1fr}
  .pthumbs{flex-direction:row;max-height:none;overflow-x:auto;padding-bottom:6px}
  .pthumb{width:112px}
  .feats{grid-template-columns:1fr}
  .feat:nth-child(odd){padding-right:0;border-right:0}
  .feat:nth-child(even){padding-left:0}
  .article{padding:40px 32px}
  .nrow{grid-template-columns:110px 1fr 26px;gap:20px}
  .nrow-cat{display:none}
  .pager{gap:12px;margin-top:38px;padding-top:24px}
  .pg-num,.pg-step{min-width:34px;height:34px;padding:0 9px;font-size:12px}
  .pg-step{padding:0 13px}
  .cnt-sub{display:block;margin:6px 0 0;padding:0;border:0}
}
@media (max-width:820px){
  .section{padding:68px 0}
  .masthead{margin-bottom:44px}
  .hero .container{padding-top:76px;padding-bottom:76px}
  .hero-desc{border-left:0;padding-left:0;border-top:2px solid var(--hot);padding-top:20px}
  .hero-actions .btn{flex:1 1 100%}
  .band{min-height:420px}
  .band-inner{padding:64px 0}
  .band::after{background:linear-gradient(0deg,rgba(7,9,12,.96) 0%,rgba(7,9,12,.86) 52%,rgba(7,9,12,.66) 100%)}
  .scenes .scene,.scenes .scene.wide,.scenes .scene.tall{grid-column:span 12;min-height:250px}
  .prow{grid-template-columns:36px 1fr 26px;gap:14px;padding:20px 0}
  .prow-spec{grid-column:2;font-size:12.5px;white-space:normal}
  .prow-arrow{grid-column:3;grid-row:1}
  .frow{grid-template-columns:1fr}
  .tl-item{grid-template-columns:1fr;gap:10px}
  .cta .container{flex-direction:column;align-items:flex-start;gap:32px}
  .cta-actions .btn{flex:1 1 100%}
  .wordmark b{-webkit-text-stroke-width:.8px}
}
@media (max-width:640px){
  :root{--gutter:20px}
  body{font-size:15px}
  .header .container{gap:12px;min-height:62px}
  .logo-en{display:none}
  .header-actions{gap:10px}
  .header-actions .btn.btn-sm{height:36px;padding:0 14px;font-size:12.5px}
  /* 英文站的品牌名比中文长，窄屏先让出报价按钮，切换入口必须留着 */
  html[lang="en"] .head-cta,
  html[lang="zh-CN"] .head-cta{display:none}
  /* 窄屏放不下整组切换：页头只留"另一种语言"，完整的一组在全屏菜单里 */
  .ls-head a.active{display:none}
  .ls-head .ls-sep{display:none}
  .ls-head{font-size:11.5px}
  .menu-top{flex-wrap:wrap;row-gap:12px}
  .ls-menu{order:3;width:100%;justify-content:flex-start;font-size:12.5px}
  /* 英文按钮文案更长，允许换行，避免把页面撑宽 */
  .btn{white-space:normal}
  .logo-cn{font-size:16px}
  .menu-btn{height:36px;padding:0 12px;gap:8px}
  .menu-btn .lbl{font-size:12px;letter-spacing:.08em}
  .hero-rail{display:none}
  .masthead::after{display:none}
  .puse-row{grid-template-columns:1fr;gap:8px}
  .pu-tag{padding-top:0}
  .nfeat{grid-template-columns:1fr}
  .nfeat .nf-media{min-height:220px}
  .nfeat .nf-body{padding:26px 22px}
  .menu-facts .mf b{font-size:21px}
  .menu-facts .mf span{font-size:10px}  .masthead::after{display:none}
  .nfeat{grid-template-columns:1fr}
  .nfeat .nf-media{min-height:220px}
  .nfeat .nf-body{padding:26px 22px}
  .menu-facts .mf b{font-size:21px}
  .menu-facts .mf span{font-size:10px}
  .sa-grid{grid-template-columns:1fr}
  .spec-anchor{padding:22px 20px 24px;margin-top:32px}
  .quick-call{padding:22px 20px 20px}
  .qc-row{grid-template-columns:1fr auto 16px;gap:10px}
  .qc-no{font-size:17px}
  .hero-tels{gap:12px 20px;margin-top:26px;padding-top:18px}
  .hero-tels .ht{font-size:12.5px;gap:7px}
  .hero-tels .ht b{font-size:14px}
  .menu-side{grid-template-columns:1fr;gap:24px}
  .menu-aux{gap:26px}
  .menu-cats{grid-template-columns:repeat(2,1fr)}
  .menu-cats a{padding:15px 14px}
  .menu-cats a b{font-size:14.5px}
  .menu-contact{padding:2px 16px 18px}
  .mc-row .tx b{font-size:16.5px}
  .mn-link{grid-template-columns:36px 1fr;gap:12px;padding:12px 14px}
  .mn-link .en{display:none}
  .menu-top{padding:16px var(--gutter)}
  .menu-body{padding:22px var(--gutter) 28px}
  .menu-foot{font-size:10px;gap:10px;padding:14px var(--gutter)}
  .cta p b{font-size:16px}
  .logo-mark{width:36px;height:36px}
  .logo-cn{font-size:16.5px}
  .logo-en{font-size:9px}
  .hero{min-height:auto}
  .hero h1{font-size:clamp(30px,8.6vw,42px)}
  .hero-foot .container{grid-template-columns:1fr 1fr}
  .hf b{font-size:22px}
  .hf span{font-size:11px}
  .stats{grid-template-columns:1fr 1fr}
  .stat{padding:28px 0}
  .stat:nth-child(2n){padding-left:18px}
  .stat b{font-size:32px}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .footer-base .container{flex-direction:column;text-align:center;gap:8px}
  .article{padding:30px 20px}
  .fcard,.icard{padding:28px 22px}
  .ptoolbar{flex-direction:column;align-items:flex-start;gap:10px}
  .cat-tab{padding:10px 16px;font-size:13px}
  .btn{height:44px;padding:0 22px;font-size:14.5px}
  .btn-lg{height:50px;padding:0 26px;font-size:15px}
  .to-top{right:14px;bottom:14px;width:44px;height:44px}
  .app-dl{right:14px;bottom:70px;padding:9px 14px 9px 12px;gap:9px}
  .app-dl svg{width:19px;height:19px}
  .app-dl-txt b{font-size:13px}
  .app-dl-txt i{font-size:10px}
  .nrow{grid-template-columns:1fr 26px;gap:12px;padding:22px 0}
  .nrow-date{display:flex;align-items:baseline;gap:10px}
  .nrow-date b{font-size:22px;margin:0}
  .nrow-arrow{grid-row:1;grid-column:2}
  .ptable tr{display:block;padding:14px 0;border-bottom:1px solid var(--line-2)}
  .ptable th{display:block;width:auto;padding:0 0 6px}
  .ptable td{display:block;padding:2px 0;font-size:13.5px}
  .spec-sheet th{width:auto}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal,.js .reveal{opacity:1;transform:none}
  .marquee-track{animation:none}
}

@media print{
  .header,.footer,.to-top,.menu,.cta,.marquee{display:none !important}
  body{background:#fff;color:#000}
  .article{background:#fff;border:0;padding:0;max-width:none}
  .article-body,.article-head h1{color:#000}
}