/* ===========================================================
   同林科技 · PLD 臭氧系统 v3.2
   深蓝科技风：海军蓝渐变底 + 亮青高亮 + 浅蓝渐变卡片
   =========================================================== */

:root{
  --navy:#0b6135;
  --navy-l:#12934e;
  --navy-d:#084a2b;
  --navy-deep:#05301c;
  --cyan:#0fbe58;
  --cyan-l:#79e8b3;
  --ink:#16281f;
  --ink2:#4a6055;
  --ink3:#7f948a;
  --line:#dcefe6;
  --line2:#ebf7f1;
  --bg:#ffffff;
  --bg2:#f4fbf7;
  --card1:#f7fcf9;
  --card2:#eaf7f1;
  --green:#009c45;
  --green-d:#007a35;
  --teal:#009c45;
  --mono:ui-monospace,"SF Mono","Roboto Mono",Consolas,"Courier New",monospace;
  --sans:"Inter","Helvetica Neue",-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --w:1280px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:15px;line-height:1.72;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5,p,ul,ol,dl,dd{margin:0}
ul,ol{list-style:none;padding:0}
button{font:inherit}

.wrap{max-width:var(--w);margin:0 auto;padding:0 40px}

/* ---------- 通用 ---------- */
.eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--cyan);display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--cyan);display:block}
.mono{font-family:var(--mono)}
.sec{padding:92px 0}
.sec-tight{padding:70px 0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:40px;margin-bottom:46px}
.sec-head h2{
  font-size:40px;line-height:1.18;letter-spacing:-.01em;font-weight:700;color:var(--navy);
  position:relative;padding-bottom:20px;
}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:0;width:46px;height:3px;background:var(--navy)}
.sec-head .lead{max-width:470px;color:var(--ink2);font-size:14px;line-height:1.9;padding-bottom:6px}
.sec-num{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--cyan);margin-bottom:12px}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--navy);
  font-weight:500;white-space:nowrap;
}
.link-more::after{content:"→";transition:transform .25s}
.link-more:hover::after{transform:translateX(4px)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 30px;font-size:14.5px;font-weight:500;
  border:1px solid transparent;cursor:pointer;transition:all .22s;
}
.btn-pri{background:var(--green);color:#fff}
.btn-pri:hover{background:var(--green-d)}
.btn-ghost{border-color:#c6edd7;color:var(--navy);background:#fff}
.btn-ghost:hover{border-color:var(--navy);background:var(--navy);color:#fff}
.btn-dark{border-color:rgba(255,255,255,.4);color:#fff}
.btn-dark:hover{background:#fff;color:var(--navy);border-color:#fff}
.btn-line{background:#fff;color:var(--navy);border-color:#fff}
.btn-line:hover{background:var(--cyan);border-color:var(--cyan);color:#054d24}

/* ---------- 顶栏 ---------- */
.top{background:var(--navy-deep);color:#9cd7b6;font-size:12.5px}
.top .wrap{display:flex;justify-content:space-between;align-items:center;height:38px}
.top a{color:#daf6e6}
.top a:hover{color:#fff}
.top .sep{color:#2c8954;margin:0 10px}
.top .live{display:inline-flex;align-items:center;gap:7px;color:var(--cyan-l)}
.top .live i{width:5px;height:5px;background:var(--cyan-l);border-radius:50%;display:block;box-shadow:0 0 6px var(--cyan-l)}

/* ---------- 导航 ---------- */
.mast{background:#fff;position:sticky;top:0;z-index:60;box-shadow:0 1px 0 rgba(0,137,59,.08)}
.mast .wrap{display:flex;align-items:center;justify-content:space-between;height:82px;gap:32px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{display:block;height:52px;width:auto}
.brand .glyph{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;flex:0 0 auto;
  background:linear-gradient(140deg,var(--navy),#05c257);color:#fff;
  font-family:var(--mono);font-size:16px;font-weight:700;letter-spacing:-.02em;white-space:nowrap;
  box-shadow:0 6px 16px -8px rgba(0,137,59,.9);
}
.brand .glyph sub{font-size:9px;line-height:1;margin-left:1px;position:relative;top:4px}
.brand .txt{line-height:1.2}
.brand .txt b{display:block;font-size:19px;font-weight:700;letter-spacing:.01em;color:var(--navy)}
.brand .txt span{display:block;font-size:9.5px;letter-spacing:.16em;color:var(--ink3);text-transform:uppercase;margin-top:3px}

.nav{display:flex;align-items:center;gap:34px}
.nav a{font-size:15px;color:var(--ink);padding:30px 0;position:relative;transition:color .2s}
.nav a:hover{color:var(--navy)}
.nav a.on{color:var(--navy);font-weight:600}
.nav a.on::after{content:"";position:absolute;left:0;right:0;bottom:22px;height:3px;background:var(--navy)}
.nav .navcta{
  height:40px;padding:0 22px;background:var(--navy);color:#fff;display:inline-flex;align-items:center;
  font-size:14px;
}
.nav .navcta:hover{background:var(--navy-d);color:#fff}
.nav .navcta::after{display:none}
.mast .tel{font-family:var(--mono);font-size:17px;font-weight:600;color:var(--navy);white-space:nowrap;display:flex;align-items:center;gap:8px}
.mast .tel::before{content:"";width:18px;height:18px;flex:0 0 auto;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23009c45'%3E%3Cpath d='M6.6 10.8c1.4 2.7 3.6 4.9 6.3 6.3l2.1-2.1c.3-.3.7-.4 1-.2 1.1.4 2.3.6 3.5.6.6 0 1 .4 1 1V20c0 .6-.4 1-1 1C10.4 21 3 13.6 3 4.5 3 3.9 3.4 3.5 4 3.5h3.6c.6 0 1 .4 1 1 0 1.2.2 2.4.6 3.5.1.4 0 .8-.2 1l-2.4 1.8z'/%3E%3C/svg%3E") no-repeat center/contain;display:block}
.burger{display:none;width:44px;height:44px;border:0;background:var(--bg2);align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}
.burger i{width:18px;height:2px;background:var(--navy);display:block}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(880px 500px at 80% 6%,rgba(8,201,92,.24),transparent 62%),
    radial-gradient(640px 400px at 14% 94%,rgba(17,148,74,.42),transparent 66%),
    linear-gradient(112deg,#093e20 0%,#0f6c37 52%,#0c572d 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:28px 28px;
  -webkit-mask-image:linear-gradient(120deg,rgba(0,0,0,.9),transparent 78%);
  mask-image:linear-gradient(120deg,rgba(0,0,0,.9),transparent 78%);
}
.hero::after{
  content:"";position:absolute;left:50%;bottom:-160px;width:1100px;height:320px;transform:translateX(-50%);
  background:radial-gradient(ellipse at center,rgba(45,235,127,.22),transparent 70%);pointer-events:none;
}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.03fr) minmax(0,.97fr);gap:50px;align-items:center;padding-top:76px;padding-bottom:80px;min-height:600px}
.hero h1{font-size:clamp(38px,4.2vw,58px);line-height:1.16;letter-spacing:-.01em;font-weight:700;margin:20px 0 22px}
.hero h1 em{font-style:normal;color:var(--cyan-l)}
.hero .sub{font-size:16px;line-height:1.95;color:#c1ecd4;max-width:530px}
.hero .acts{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero .acts .btn-pri{background:var(--cyan);color:#054d24}
.hero .acts .btn-pri:hover{background:#57f49b}

.spec-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:48px;border-top:1px solid rgba(255,255,255,.16);padding-top:24px}
.spec-row div{border-right:1px solid rgba(255,255,255,.12);padding-right:14px}
.spec-row div:last-child{border-right:0}
.spec-row b{display:block;font-family:var(--mono);font-size:21px;font-weight:600;color:#fff;letter-spacing:-.02em}
.spec-row b i{font-style:normal;font-size:11px;color:#8cd5ac;margin-left:3px}
.spec-row span{display:block;font-size:11.5px;color:#99d6b3;margin-top:5px}

.hero-visual{position:relative;display:flex;align-items:center;justify-content:center}
.hero-visual .halo{
  position:absolute;width:118%;height:78%;border-radius:50%;
  background:radial-gradient(ellipse at center,rgba(121,249,176,.28),rgba(45,235,127,.10) 45%,transparent 72%);
  filter:blur(6px);
}
.hero-visual .shot{position:relative;width:100%;z-index:2}
.hero-visual .shot img{width:100%;height:auto;filter:drop-shadow(0 30px 40px rgba(1,57,25,.55))}
.hero-visual .badge{
  position:absolute;right:0;bottom:6px;z-index:3;
  background:rgba(5,62,30,.72);border:1px solid rgba(121,249,176,.35);
  padding:10px 16px;
}
.hero-visual .badge b{display:block;font-size:13px;color:#fff;letter-spacing:.02em}
.hero-visual .badge span{font-family:var(--mono);font-size:10px;letter-spacing:.14em;color:var(--cyan-l)}

/* ---------- 信任条 ---------- */
.trust{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.trust .it{padding:26px 30px;border-left:1px solid var(--line)}
.trust .it:first-child{border-left:0;padding-left:0}
.trust .it b{font-family:var(--mono);font-size:18px;font-weight:700;display:block;color:var(--navy)}
.trust .it span{font-size:12.5px;color:var(--ink3);display:block;margin-top:3px}

/* ---------- 产品卡 ---------- */
.pcard{
  display:flex;flex-direction:column;position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);box-shadow:0 1px 2px rgba(9,62,32,.03),0 10px 26px -22px rgba(9,62,32,.22);
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.pcard::after{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--navy),var(--cyan));transform:scaleX(0);transform-origin:left;
  transition:transform .35s;
}
.pcard:hover{transform:translateY(-4px);border-color:#c1ead3;box-shadow:0 24px 42px -30px rgba(9,62,32,.34)}
.pcard:hover::after{transform:scaleX(1)}
.pcard .ph{position:relative;height:236px;display:flex;align-items:center;justify-content:center;
  padding:8px 10px;margin:14px 14px 0;overflow:hidden;
  background:radial-gradient(128% 96% at 50% 86%,#edfbf3 0%,#f8fefb 62%,#fff 100%);
  border:1px solid #f0f6f3}
.pcard .ph img{width:100%;height:100%;object-fit:contain;object-position:center;transition:transform .45s}
.pcard:hover .ph img{transform:scale(1.04)}
.pcard .pb{padding:8px 26px 26px;display:flex;flex-direction:column;flex:1}
.pcard .k{
  align-self:flex-start;font-family:var(--mono);font-size:10px;letter-spacing:.12em;color:var(--navy);
  background:#e9faf0;border:1px solid #d1f3e0;padding:4px 9px;margin-bottom:12px;
}
.pcard h3{font-size:20px;font-weight:700;color:var(--navy);letter-spacing:-.01em;margin-bottom:8px}
.pcard p{font-size:13px;color:var(--ink2);line-height:1.85;flex:1}
.pcard .kv{display:flex;flex-wrap:wrap;gap:4px 18px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line2)}
.pcard .kv div{font-family:var(--mono);font-size:11.5px;color:var(--navy)}
.pcard .kv div span{color:var(--ink3);margin-right:5px}
.pcard .go{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line2);
  font-size:13px;color:var(--navy);font-weight:500;display:inline-flex;gap:8px;
}
.pcard .go::after{content:"→";transition:transform .25s}
.pcard:hover .go::after{transform:translateX(4px)}

.pgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}

/* 主推大卡 */
.phero-card{
  display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,1fr);margin-bottom:26px;overflow:hidden;
  background:linear-gradient(120deg,#f7fdfa 0%,#edfbf3 55%,#e4f9ed 100%);
  border:1px solid #cef2de;transition:box-shadow .3s;
}
.phero-card:hover{box-shadow:0 26px 50px -32px rgba(0,137,59,.5)}
.phero-card .ph{display:flex;align-items:center;justify-content:center;padding:26px 30px;background:radial-gradient(circle at 50% 55%,rgba(255,255,255,.85),transparent 70%)}
.phero-card .ph img{width:100%;height:auto;max-height:330px;object-fit:contain}
.phero-card .pb{padding:44px 46px;display:flex;flex-direction:column;justify-content:center}
.phero-card h3{font-size:28px;letter-spacing:-.015em;font-weight:700;color:var(--navy);margin:10px 0 14px}
.phero-card p{color:#3c6950;font-size:14px;line-height:1.9}
.phero-card .kv{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px 20px;margin:24px 0 4px;padding-top:22px;border-top:1px solid rgba(0,137,59,.14)}
.phero-card .kv b{display:block;font-family:var(--mono);font-size:16px;font-weight:700;color:var(--navy)}
.phero-card .kv span{font-size:11.5px;color:#6c9a80;display:block}
.phero-card .go{margin-top:22px;font-size:13.5px;color:var(--navy);font-weight:500;display:inline-flex;gap:8px}
.phero-card .go::after{content:"→"}

/* ---------- PLD 流程 ---------- */
.flow{
  position:relative;color:var(--ink);padding:88px 0 92px;overflow:hidden;
  border-top:1px solid var(--line);
  background:
    radial-gradient(760px 420px at 88% 0%,rgba(0,156,69,.10),transparent 62%),
    radial-gradient(620px 380px at 6% 96%,rgba(0,156,69,.06),transparent 66%),
    linear-gradient(180deg,#ffffff 0%,#f4fbf7 44%,#ffffff 100%);
}
.flow::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:radial-gradient(rgba(0,124,55,.13) 1px,transparent 1px);
  background-size:26px 26px;
  -webkit-mask-image:linear-gradient(200deg,rgba(0,0,0,.6),transparent 72%);
  mask-image:linear-gradient(200deg,rgba(0,0,0,.6),transparent 72%);
}
.flow .wrap{position:relative;z-index:2}
.flow .eyebrow{color:var(--teal)}
.flow .eyebrow::before{background:var(--teal)}
.flow h2{font-size:40px;letter-spacing:-.01em;font-weight:700;margin:16px 0 16px;color:var(--navy);position:relative;padding-bottom:20px}
.flow h2::after{content:"";position:absolute;left:0;bottom:0;width:46px;height:3px;background:var(--teal)}
.flow .lead{color:var(--ink2);font-size:14.5px;max-width:660px;line-height:1.9}
.flow-diagram{margin:48px 0 0;border:1px solid rgba(106,232,161,.20);background:rgba(6,51,25,.38);padding:30px 26px 16px}
.flow-legend{display:flex;gap:28px;flex-wrap:wrap;font-family:var(--mono);font-size:11px;color:#87c7a3;padding:0 4px 12px}
.flow-legend i{display:inline-block;width:14px;height:2px;vertical-align:middle;margin-right:7px}
.flow-points{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:rgba(106,232,161,.14);margin-top:34px;border:1px solid rgba(106,232,161,.14)}
.flow-points div{background:rgba(7,57,29,.55);padding:24px 22px}
.flow-points b{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--cyan-l);margin-bottom:9px}
.flow-points p{font-size:12.5px;color:#a6e0bf;line-height:1.8}

/* ---------- 配件 ---------- */
.acc-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:26px}
.acc{
  display:grid;grid-template-columns:minmax(0,1fr);background:#fff;border:1px solid var(--line);
  box-shadow:0 1px 2px rgba(9,62,32,.03),0 10px 26px -22px rgba(9,62,32,.2);
  transition:border-color .25s,box-shadow .25s;
}
.acc:hover{border-color:#c1ead3;box-shadow:0 22px 40px -30px rgba(9,62,32,.3)}
.acc .ph{position:relative;background:radial-gradient(126% 94% at 50% 86%,#edfbf3 0%,#f8fefb 62%,#fff 100%);border-bottom:1px solid var(--line2);overflow:hidden;aspect-ratio:3/2}
.acc .ph img{position:absolute;inset:14px;width:calc(100% - 28px);height:calc(100% - 28px);object-fit:contain;object-position:center;display:block}
.acc .ph.thin img{inset:18px;width:calc(100% - 36px);height:calc(100% - 36px)}
.acc .pb{padding:26px 28px}
.acc .pb h3{font-size:18px;font-weight:700;color:var(--navy);margin:8px 0 9px}
.acc .pb p{font-size:12.5px;color:var(--ink3);line-height:1.85}
.acc .pb .kv{margin-top:16px;padding-top:14px;border-top:1px solid var(--line2);font-family:var(--mono);font-size:11px;color:var(--ink2);display:flex;flex-wrap:wrap;gap:5px 16px}
.acc .pb .kv span{color:var(--ink3)}
.acc-wide{grid-template-columns:minmax(0,392px) minmax(0,1fr);grid-column:1/-1}
.acc-wide .ph{aspect-ratio:4/3;border-bottom:0;border-right:1px solid var(--line2)}
.acc-wide .ph img{inset:8px;width:calc(100% - 16px);height:calc(100% - 16px)}
.acc-wide .pb .kv{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:0 36px;margin-top:16px}
.acc-wide .pb .kv div{display:flex;gap:10px;align-items:baseline;border-bottom:1px solid var(--line2);padding:8px 0;font-size:12px}
.acc-wide .pb .kv div span{color:var(--ink3);flex:0 0 78px;margin:0}

.parts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-right:0;margin-top:26px;background:#fff}
.parts div{padding:22px 24px;border-right:1px solid var(--line)}
.parts b{display:block;font-size:14.5px;font-weight:600;color:var(--navy)}
.parts span{font-size:12px;color:var(--ink3);display:block;margin-top:5px;line-height:1.7}

/* ---------- 参数表 ---------- */
.spec-table{width:100%;border-collapse:collapse;font-size:13.5px}
.spec-table th,.spec-table td{border-bottom:1px solid var(--line2);padding:14px;text-align:left;vertical-align:top}
.spec-table th{font-size:12.5px;letter-spacing:.04em;color:#fff;font-weight:500;background:var(--green-d);border-bottom:1px solid var(--green-d)}
.spec-table td:first-child{color:var(--ink2);width:32%;background:#f8fefb;font-size:12.5px}
.spec-table tr:hover td{background:#f6fcf9}

/* ---------- 技术说明 ---------- */
.tech{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tech .wrap{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:70px}
.tech h2{font-size:34px;line-height:1.28;letter-spacing:-.01em;font-weight:700;margin-top:14px;color:var(--navy);position:relative;padding-bottom:20px}
.tech h2::after{content:"";position:absolute;left:0;bottom:0;width:46px;height:3px;background:var(--navy)}
.tech .note{font-size:13px;color:var(--ink3);margin-top:18px;line-height:1.9}
.tech dl>div{padding:20px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:150px minmax(0,1fr);gap:24px}
.tech dl>div:first-child{padding-top:0}
.tech dt{font-size:13px;font-weight:600;color:var(--navy)}
.tech dd{font-size:13.5px;color:var(--ink2);line-height:1.9}

/* ---------- 应用 ---------- */
.apps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line);background:#fff}
.apps a{padding:30px 28px 32px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .25s;display:block}
.apps a:nth-child(3n){border-right:0}
.apps a:nth-last-child(-n+3){border-bottom:0}
.apps a:hover{background:linear-gradient(180deg,#f5fcf8,#e8faf0)}
.apps .n{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--cyan);font-weight:600}
.apps h4{font-size:16.5px;font-weight:700;color:var(--navy);margin:11px 0 8px}
.apps p{font-size:12.5px;color:var(--ink3);line-height:1.85}

/* 行业应用（深蓝） */
.industry{position:relative;color:var(--ink);padding:88px 0;overflow:hidden;background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.industry::before{content:"";position:absolute;inset:0;opacity:1;pointer-events:none;
  background-image:linear-gradient(rgba(15,108,55,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(15,108,55,.035) 1px,transparent 1px);
  background-size:30px 30px;
  -webkit-mask-image:linear-gradient(115deg,rgba(0,0,0,.85),transparent 68%);mask-image:linear-gradient(115deg,rgba(0,0,0,.85),transparent 68%)}
.industry .wrap{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:56px;align-items:center}
.industry h2{font-size:34px;font-weight:700;letter-spacing:-.01em;position:relative;padding-bottom:20px;color:var(--navy)}
.industry h2::after{content:"";position:absolute;left:0;bottom:0;width:46px;height:3px;background:var(--cyan)}
.industry p{color:var(--ink2);font-size:14px;line-height:1.95;margin-top:18px}
.industry .eyebrow{color:var(--cyan)}
.industry .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.industry .chips span{font-family:var(--mono);font-size:12px;color:var(--navy);border:1px solid #d1f0de;padding:9px 15px;background:#fff;transition:border-color .22s,box-shadow .22s}
.industry .chips span:hover{border-color:var(--cyan);box-shadow:0 8px 18px -14px rgba(15,108,55,.5)}
.industry .btn-line{background:var(--navy);color:#fff;border-color:var(--navy)}
.industry .btn-line:hover{background:var(--navy-d);border-color:var(--navy-d);color:#fff}
.industry .acts{margin-top:30px}

/* ---------- 服务 ---------- */
.svc{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.svc div{background:#fff;border:1px solid var(--line);padding:32px 28px 34px;transition:box-shadow .25s,border-color .25s}
.svc div:hover{border-color:#baeed1;box-shadow:0 20px 40px -34px rgba(0,137,59,.4)}
.svc b{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--cyan);margin-bottom:14px}
.svc h4{font-size:17.5px;font-weight:700;color:var(--navy);margin-bottom:10px}
.svc p{font-size:13px;color:var(--ink3);line-height:1.9}

/* ---------- CTA ---------- */
.cta{position:relative;color:#fff;padding:68px 0;overflow:hidden;background:linear-gradient(110deg,#06371c 0%,#0d7439 56%,#096030 100%)}
.cta::before{content:"";position:absolute;inset:0;opacity:.3;background-image:radial-gradient(rgba(255,255,255,.2) 1px,transparent 1px);background-size:24px 24px}
.cta .wrap{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta h2{font-size:29px;letter-spacing:-.01em;font-weight:700}
.cta p{color:#b7e6cb;font-size:14px;margin-top:10px;max-width:560px;line-height:1.85}
.cta .acts{display:flex;gap:12px}

/* ---------- 新闻卡 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.ncard{background:#fff;border:1px solid var(--line);padding:28px 26px 26px;display:flex;flex-direction:column;transition:all .25s}
.ncard:hover{border-color:#baeed1;box-shadow:0 20px 40px -34px rgba(0,137,59,.45);transform:translateY(-3px)}
.ncard .d{font-family:var(--mono);font-size:11.5px;color:var(--cyan);letter-spacing:.06em}
.ncard h4{font-size:16px;font-weight:700;color:var(--ink);line-height:1.55;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ncard:hover h4{color:var(--navy)}
.ncard p{font-size:12.5px;color:var(--ink3);line-height:1.85;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.ncard .go{margin-top:18px;padding-top:14px;border-top:1px solid var(--line2);font-size:12.5px;color:var(--navy);display:inline-flex;gap:7px}
.ncard .go::after{content:"→"}

/* ---------- 内页头 ---------- */
.phead{
  position:relative;color:#fff;padding:62px 0 58px;overflow:hidden;
  background:
    radial-gradient(760px 340px at 84% -6%,rgba(0,186,84,.34),transparent 64%),
    linear-gradient(112deg,#06371c 0%,#0d7439 54%,#096030 100%);
}
.phead::before{
  content:"";position:absolute;inset:0;opacity:.4;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.15) 1px,transparent 1px);background-size:28px 28px;
  -webkit-mask-image:linear-gradient(110deg,rgba(0,0,0,.8),transparent 75%);mask-image:linear-gradient(110deg,rgba(0,0,0,.8),transparent 75%);
}
.phead .wrap{position:relative;z-index:2}
.crumb{font-size:12px;color:#9cddb8;margin-bottom:18px}
.crumb a{color:#9cddb8}
.crumb a:hover{color:#fff}
.crumb i{font-style:normal;margin:0 8px;color:#58ae7d}
.crumb span{color:#fff}
.phead h1{font-size:42px;line-height:1.2;letter-spacing:-.015em;font-weight:700}
.phead .desc{color:#bdebd1;font-size:14.5px;margin-top:16px;max-width:760px;line-height:1.9}

/* 产品详情页 */
.pdp{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);gap:60px;align-items:start}
.pdp .gallery{background:linear-gradient(180deg,#f8fdfa,#edfaf3);border:1px solid var(--line);padding:22px}
.pdp .gallery img{width:100%;display:block}
.pdp .gallery .cap{font-family:var(--mono);font-size:10.5px;color:var(--ink3);letter-spacing:.06em;padding-top:14px;border-top:1px solid rgba(0,137,59,.12);margin-top:14px}
.pdp .intro h1,.pdp .intro .pname{font-size:36px;letter-spacing:-.015em;font-weight:700;color:var(--navy);line-height:1.22;margin-top:14px}
.pdp .intro .sub{color:var(--ink2);font-size:14.5px;line-height:1.95;margin-top:16px}
.pdp .quick{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);border:1px solid var(--line);margin:28px 0}
.pdp .quick div{padding:17px 19px;border-right:1px solid var(--line2);border-bottom:1px solid var(--line2)}
.pdp .quick div:nth-child(2n){border-right:0}
.pdp .quick div:nth-last-child(-n+2){border-bottom:0}
.pdp .quick b{display:block;font-family:var(--mono);font-size:17px;font-weight:700;color:var(--navy)}
.pdp .quick span{font-size:11.5px;color:var(--ink3)}
.pdp .acts{display:flex;gap:12px;flex-wrap:wrap}

.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:60px;align-items:start}
.sec h2.h2{font-size:30px;letter-spacing:-.01em;font-weight:700;color:var(--navy);margin-bottom:24px;position:relative;padding-bottom:18px}
.sec h2.h2::after{content:"";position:absolute;left:0;bottom:0;width:40px;height:3px;background:var(--navy)}
.prose p{font-size:14px;line-height:2;color:var(--ink2);margin-bottom:16px}
.prose ul{margin:0 0 16px}
.prose li{position:relative;padding-left:20px;font-size:14px;line-height:2;color:var(--ink2)}
.prose li::before{content:"";position:absolute;left:0;top:15px;width:6px;height:6px;background:var(--cyan);transform:rotate(45deg)}

/* ---------- 列表页 ---------- */
.list-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:6px;border-bottom:2px solid var(--navy);padding-bottom:16px}
.list-toolbar .cnt{font-size:12.5px;color:var(--ink3)}
.list-toolbar .cnt a{color:var(--navy)}
.arow{display:grid;grid-template-columns:minmax(0,1fr) 150px 100px;gap:24px;align-items:baseline;padding:22px 6px;border-bottom:1px solid var(--line2);transition:all .2s}
.arow:hover{background:#f5fcf8;padding-left:16px}
.arow h3{font-size:16px;font-weight:600;line-height:1.6;color:var(--ink)}
.arow:hover h3{color:var(--navy)}
.arow .cat{font-size:12px;color:var(--cyan)}
.arow .date{font-family:var(--mono);font-size:11.5px;color:var(--ink3);text-align:right}

/* 文章详情 */
.artwrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:60px;align-items:start}
.art{max-width:770px}
.art h1{font-size:31px;line-height:1.4;letter-spacing:-.01em;font-weight:700;margin-bottom:16px;color:var(--navy)}
.art .meta{font-size:12px;color:var(--ink3);padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:30px;display:flex;gap:18px;flex-wrap:wrap}
.art .meta span:first-child{color:var(--cyan)}
.art .body{font-size:15.5px;line-height:2.05;color:#2f4739}
.art .body p{margin:0 0 20px}
.art .body h1{display:none}
.art .body h2{font-size:21px;font-weight:700;color:var(--navy);margin:38px 0 16px;padding-left:14px;border-left:4px solid var(--cyan);line-height:1.5}
.art .body h3{font-size:17px;font-weight:700;margin:28px 0 12px;color:var(--navy)}
.art .body img{max-width:100%;height:auto;margin:10px 0 20px}
.art .body table{width:100%;border-collapse:collapse;font-size:13.5px;margin:16px 0 24px}
.art .body th,.art .body td{border:1px solid var(--line);padding:10px 12px}
.art .body th{background:var(--navy);color:#fff;font-weight:500}
.art .body ul,.art .body ol{margin:0 0 20px;padding-left:20px;list-style:disc}
.art .body li{margin-bottom:8px}
.art .body blockquote{border-left:3px solid var(--cyan);background:var(--bg2);margin:20px 0;padding:14px 20px;color:var(--ink2)}
.side{border-top:3px solid var(--navy);padding-top:20px}
.side h4{font-size:14px;font-weight:700;color:var(--navy);margin-bottom:14px}
.side a{display:block;font-size:13.5px;padding:12px 0;border-bottom:1px solid var(--line2);color:var(--ink2);line-height:1.65}
.side a:hover{color:var(--navy)}
.side .btn{color:#fff;border-bottom:0;padding:0;display:inline-flex;justify-content:center}
.side .btn:hover{color:#fff;background:var(--navy-d)}

/* 分页 */
.page{display:flex;gap:8px;margin-top:44px;flex-wrap:wrap;align-items:center;font-size:13px}
.page a,.page span{min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);padding:0 12px;color:var(--ink2);background:#fff}
.page a:hover{border-color:var(--navy);color:var(--navy)}
.page a:not([href]){background:var(--navy);color:#fff;border-color:var(--navy);font-weight:600}
.page a:not([href]):hover{background:var(--navy);color:#fff}
.page .disabled{color:#c2d3c9}

/* ---------- 页脚 ---------- */
footer{position:relative;color:#9bd1b2;padding:64px 0 0;font-size:13px;overflow:hidden;background:#052b15}
footer::before{content:"";position:absolute;inset:0;opacity:.28;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1px);background-size:26px 26px}
footer .wrap{position:relative;z-index:2}
.fgrid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);gap:48px;padding-bottom:46px}
footer .fb b.mark{display:block;font-size:17px;color:#fff;font-weight:700}
footer .fb .en{font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;color:#59ac7d;margin-top:6px;text-transform:uppercase}
footer .fb p{font-size:12.5px;line-height:1.95;color:#8cc6a5;margin-top:18px;max-width:340px}
footer h5{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;position:relative;padding-bottom:12px}
footer h5::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--cyan)}
footer .fcol li{margin-bottom:10px}
footer .fcol a{font-size:12.5px;color:#a6dabc}
footer .fcol a:hover{color:#fff}
footer .fcontact li{display:flex;gap:12px;font-size:12.5px;color:#a6dabc;margin-bottom:10px}
footer .fcontact .k{font-size:11px;color:#59ac7d;min-width:44px;padding-top:2px}
.fdb{border-top:1px solid rgba(121,249,176,.16);padding:18px 0 0;display:flex;gap:16px;flex-wrap:wrap;align-items:center;font-size:12px}
.fdb .lab{font-size:11px;color:#59ac7d}
.fdb .lab2{margin-left:26px}
.fdb a{color:#a6dabc;border-bottom:1px solid rgba(121,249,176,.28);padding-bottom:1px}
.fdb a:hover{color:#fff;border-color:var(--cyan-l)}
.fbottom{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;border-top:1px solid rgba(121,249,176,.16);margin-top:24px;padding:20px 0 26px;font-size:11.5px;color:#59ac7d}
.fbottom a{color:#8cc6a5}
.fbottom a:hover{color:#fff}
.fbottom .lks{display:flex;gap:18px}

/* ---------- 响应式 ---------- */
@media(max-width:1180px){
  .wrap{padding:0 28px}
  .hero .wrap{gap:36px}
  .nav{gap:22px}
  .phero-card .pb{padding:34px 32px}
  .tech .wrap{gap:44px}
  .artwrap{grid-template-columns:minmax(0,1fr) 260px;gap:40px}
  .mast .tel{display:none}
}
@media(max-width:1080px){
  .nav{gap:18px}
}
@media(max-width:1000px){
  .burger{display:flex}
  .nav{
    position:absolute;left:0;right:0;top:82px;background:#fff;
    flex-direction:column;align-items:stretch;gap:0;padding:10px 28px 22px;display:none;
    box-shadow:0 24px 34px -26px rgba(0,137,59,.45);
  }
  .nav.open{display:flex}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line2);font-size:15px}
  .nav a.on::after{display:none}
  .nav .navcta{margin-top:16px;justify-content:center}
  .hero .wrap{grid-template-columns:minmax(0,1fr);gap:44px;padding-top:52px;padding-bottom:60px;min-height:0}
  .spec-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 0}
  .spec-row div:nth-child(2){border-right:0}
  .trust .wrap{grid-template-columns:repeat(2,1fr)}
  .trust .it{padding:20px 0;border-left:0;border-top:1px solid var(--line)}
  .trust .it:nth-child(1),.trust .it:nth-child(2){border-top:0}
  .phero-card{grid-template-columns:1fr}
  .phero-card .ph{padding:20px 24px 0}
  .pgrid{grid-template-columns:repeat(2,1fr)}
  .flow-points{grid-template-columns:repeat(2,1fr)}
  .tech .wrap{grid-template-columns:minmax(0,1fr);gap:32px}
  .apps{grid-template-columns:repeat(2,1fr)}
  .apps a:nth-child(3n){border-right:1px solid var(--line)}
  .apps a:nth-child(2n){border-right:0}
  .apps a:nth-last-child(-n+3){border-bottom:1px solid var(--line)}
  .apps a:nth-last-child(-n+2){border-bottom:0}
  .svc{grid-template-columns:1fr}
  .industry .wrap{grid-template-columns:minmax(0,1fr);gap:32px}
  .pdp{grid-template-columns:minmax(0,1fr);gap:36px}
  .two{grid-template-columns:minmax(0,1fr);gap:36px}
  .parts{grid-template-columns:repeat(2,1fr)}
  .parts div:nth-child(2){border-right:0}
  .artwrap{grid-template-columns:1fr}
  .fgrid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px}
  .sec{padding:70px 0}
  .news-grid{grid-template-columns:1fr}
  .acc-grid{grid-template-columns:1fr}
  .sec-head h2,.flow h2{font-size:33px}
}
@media(max-width:900px){
  .flow-diagram{overflow-x:auto;-webkit-overflow-scrolling:touch;padding:22px 16px 8px}
  .flow-diagram::-webkit-scrollbar{height:4px}
  .flow-diagram::-webkit-scrollbar-thumb{background:rgba(123,249,178,.45);border-radius:2px}
  .flow-diagram::after{content:"← 左右滑动查看完整气路 →";display:block;text-align:center;padding:10px 0 2px;
    font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;color:#7bd8a3;white-space:nowrap}
  .flow-diagram svg{min-width:720px}
  .flow-legend{gap:18px;font-size:10px}
}
@media(max-width:720px){
  .wrap{padding:0 20px}
  .mast .wrap{height:66px}
  .nav{top:66px}
  .brand img{height:38px}
  .brand .glyph{width:38px;height:38px;font-size:14px}
  .brand .txt b{font-size:16px}
  .brand .txt span{font-size:8px}
  .top{font-size:10.5px}
  .top .wrap{height:32px}
  .top .hide-s,.top .sep{display:none}
  .top .right{display:none}

  .hero .wrap{padding-top:40px;padding-bottom:48px}
  .hero h1{font-size:31px;line-height:1.22}
  .hero .sub{font-size:14.5px;line-height:1.9}
  .hero .acts .btn{flex:1;justify-content:center;min-width:130px;font-size:13.5px;padding:0 14px;height:46px}
  .spec-row{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px 10px;margin-top:34px}
  .spec-row b{font-size:17px}
  .spec-row div{border-right:0;padding-right:0}
  .hero-visual .badge{padding:8px 12px;bottom:0}
  .hero-visual .badge b{font-size:12px}
  .hero-visual .badge span{font-size:9px}

  .sec,.sec-tight{padding:52px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .sec-head h2,.flow h2,.tech h2,.industry h2{font-size:26px;padding-bottom:16px}
  .sec-head h2::after,.flow h2::after,.tech h2::after,.industry h2::after{width:36px;height:3px}
  .sec-head .lead{max-width:none}

  .pgrid{grid-template-columns:1fr}
  .pcard .ph{height:200px}
  .pcard .pb{padding:6px 20px 22px}
  .phero-card .pb{padding:24px 22px}
  .phero-card h3{font-size:22px}
  .phero-card .kv{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px}

  .phead{padding:34px 0 32px}
  .phead h1{font-size:27px}
  .phead .desc{font-size:13.5px}

  .spec-table{display:block;overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
  .spec-table th,.spec-table td{white-space:nowrap;min-width:132px;padding:12px}
  .spec-table th:first-child,.spec-table td:first-child{min-width:96px;width:96px}

  .acc{grid-template-columns:1fr}
  .acc .ph{aspect-ratio:3/2}
  .acc-wide{grid-template-columns:1fr}
  .acc-wide .pb .kv{grid-template-columns:1fr}

  .apps{grid-template-columns:1fr}
  .apps a{border-right:0!important;border-bottom:1px solid var(--line)!important;padding:24px 22px}
  .apps a:last-child{border-bottom:0!important}
  .flow-points{grid-template-columns:1fr}
  .parts{grid-template-columns:minmax(0,1fr);border-right:1px solid var(--line)}
  .parts div{border-right:0}
  .pdp .quick{grid-template-columns:1fr 1fr}
  .pdp .quick div{padding:14px}
  .pdp .intro h1,.pdp .intro .pname{font-size:28px}
  .pdp .gallery{padding:14px}
  .cta{padding:44px 0}
  .cta h2{font-size:22px}
  .cta .acts{width:100%}
  .cta .acts .btn{flex:1;justify-content:center}
  .industry{padding:52px 0}
  .arow{grid-template-columns:minmax(0,1fr);gap:6px}
  .arow .date{text-align:left}
  .art h1{font-size:25px}
  .art .body{font-size:15px;line-height:1.95}
  .art .body table{display:block;overflow-x:auto}
  .fgrid{grid-template-columns:1fr}
  footer{padding-top:44px}
  .fdb{flex-direction:column;align-items:flex-start;gap:8px}
  .fbottom{flex-direction:column;align-items:flex-start;gap:8px}
  .ncard{padding:22px 20px}
  .svc div{padding:26px 22px}
}

/* ---------- 导航居中与电话 ---------- */
.mast .wrap{gap:26px}
.nav{flex:1;display:flex;justify-content:center}
.mast .tel{margin-left:auto}
@media(max-width:1000px){
  .nav{flex:none;display:none;justify-content:flex-start}
  .nav.open{display:flex}
  .mast .tel{display:none}
  .mast .wrap{justify-content:space-between}
}

/* ---------- Hero 产品展示板 ---------- */
.hero-visual .plate{
  background:linear-gradient(180deg,#ffffff,#f2fbf6);
  padding:16px;border-radius:6px;
  box-shadow:0 50px 90px -46px rgba(0,0,0,.75),0 0 0 1px rgba(255,255,255,.35);
}
.hero-visual .plate img{border-radius:3px}
@media(max-width:720px){
  .hero-visual .plate{padding:10px;border-radius:4px}
}

/* hero 图与白板融合 */
.hero-visual .plate{position:relative;overflow:hidden}
.hero-visual .plate::after{
  content:"";position:absolute;left:16px;right:16px;top:16px;bottom:16px;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,0) 7%,rgba(255,255,255,0) 93%,rgba(255,255,255,.96) 100%),
    linear-gradient(90deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,0) 5%,rgba(255,255,255,0) 95%,rgba(255,255,255,.95) 100%);
}
@media(max-width:720px){
  .hero-visual .plate::after{left:10px;right:10px;top:10px;bottom:10px}
}

/* 深蓝页头 → 深蓝区块：连续过渡，用发丝线分隔 */
.phead + .flow{margin-top:0;box-shadow:inset 0 1px 0 rgba(121,249,176,.20)}


/* ---------- v3.3 移动端防溢出 ---------- */
.hero .wrap>*,.pdp>*,.two>*,.tech .wrap>*,.industry .wrap>*,.sec-head>*,.phead .wrap>*{min-width:0}
.hero .sub,.sec-head .lead{max-width:100%}
.spec-row>div,.trust .it,.pdp .quick>div,.parts>div,.acc .pb,.acc-wide .pb{min-width:0}
body{overflow-x:hidden}
@media(max-width:720px){
  .hero .acts{gap:10px}
  .hero .acts .btn{min-width:0;flex:1 1 46%}
  .acc .ph{aspect-ratio:3/2}
  .acc-wide .ph{aspect-ratio:16/9;border-right:0;border-bottom:1px solid var(--line2)}
}

/* ---------- 列表空状态 ---------- */
.list-body{font-size:14px;color:var(--ink3);line-height:1.95}
.list-body:not(:has(.arow)){padding:48px 0 56px;border-top:1px solid var(--line);max-width:620px}
.page:not(:has(a)){display:none}


/* ---------- v3.4 进口设备资料栏 ---------- */
.sec-alt{background:var(--bg2)}

.irow{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
.icard{
  display:flex;flex-direction:column;position:relative;overflow:hidden;padding:40px 38px 34px;
  background:#fff;border:1px solid var(--line);color:var(--ink);
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.icard::after{content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:linear-gradient(90deg,var(--navy),var(--cyan));transform:scaleX(0);transform-origin:left;transition:transform .35s}
.icard:hover{transform:translateY(-4px);border-color:#c6ecd7;box-shadow:0 26px 46px -34px rgba(9,62,32,.35)}
.icard:hover::after{transform:scaleX(1)}
.ic-num{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--cyan);margin-bottom:20px}
.icard h3{font-size:23px;font-weight:700;color:var(--navy);margin-bottom:12px;letter-spacing:-.01em}
.icard p{font-size:13.5px;line-height:1.9;color:var(--ink2);margin-bottom:20px}
.icard ul{list-style:none;padding:0;margin:0 0 26px}
.icard li{font-size:13px;color:var(--ink2);padding:9px 0 9px 18px;position:relative;
  border-bottom:1px solid var(--line2)}
.icard li::before{content:"";position:absolute;left:0;top:17px;width:6px;height:6px;
  background:var(--cyan);transform:rotate(45deg)}
.icard .go{margin-top:auto;font-size:13.5px;font-weight:500;color:var(--navy);display:inline-flex;gap:8px}
.icard .go::after{content:"→";transition:transform .25s}
.icard:hover .go::after{transform:translateX(4px)}

.dl3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.dl3>div{background:#fff;border:1px solid var(--line);padding:32px 30px 34px}
.dl3 b{display:block;font-size:16px;font-weight:700;color:var(--navy);margin-bottom:12px;
  padding-bottom:14px;border-bottom:2px solid var(--navy);position:relative}
.dl3 b::after{content:"";position:absolute;left:0;bottom:-2px;width:38px;height:2px;background:var(--cyan)}
.dl3 p{font-size:13px;line-height:1.95;color:var(--ink3)}

.lnk3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border:1px solid var(--line)}
.lnk3 a{display:block;padding:30px 30px 32px;border-right:1px solid var(--line);transition:background .25s}
.lnk3 a:last-child{border-right:0}
.lnk3 a:hover{background:var(--bg2)}
.lnk3 b{display:block;font-size:16px;font-weight:700;color:var(--navy);margin-bottom:8px}
.lnk3 span{font-size:12.5px;color:var(--ink3);line-height:1.8;display:block}

@media(max-width:1000px){
  .irow,.dl3,.lnk3{grid-template-columns:minmax(0,1fr)}
  .lnk3 a{border-right:0;border-bottom:1px solid var(--line)}
  .lnk3 a:last-child{border-bottom:0}
  .icard{padding:32px 26px 28px}
}

/* ---------- 进口品牌 / 机型索引 ---------- */
.bgrp{display:grid;grid-template-columns:132px minmax(0,1fr);gap:20px;padding:24px 0;border-top:1px solid var(--line)}
.bgrp:first-child{border-top:0;padding-top:4px}
.bgrp .c{font-size:12px;letter-spacing:.12em;color:var(--cyan);font-family:var(--mono);padding-top:6px}
.bgrp .list{display:flex;flex-wrap:wrap;gap:10px 12px}
.bgrp .list a{display:inline-flex;align-items:baseline;gap:8px;font-size:14px;color:var(--ink);
  padding:8px 13px;border:1px solid var(--line);background:#fff;transition:border-color .2s,box-shadow .2s,color .2s}
.bgrp .list a:hover{border-color:var(--cyan);color:var(--navy);box-shadow:0 10px 20px -16px rgba(9,62,32,.5)}
.bgrp .list a em{font-style:normal;font-family:var(--mono);font-size:10.5px;color:var(--ink3);letter-spacing:.02em}

.xtab-wrap{background:#fff;border:1px solid var(--line);box-shadow:0 1px 2px rgba(9,62,32,.03),0 10px 26px -22px rgba(9,62,32,.18);overflow:hidden}
.xtab{width:100%;border-collapse:collapse;font-size:13.5px}
.xtab th{background:#f6fcf9;color:var(--navy);font-weight:600;text-align:left;font-size:12px;letter-spacing:.05em;padding:13px 16px;border-bottom:1px solid var(--line)}
.xtab td{padding:13px 16px;border-bottom:1px solid var(--line2);color:var(--ink2);vertical-align:top;line-height:1.7}
.xtab tr:last-child td{border-bottom:0}
.xtab tbody tr:hover td{background:#fafdfb}
.xtab .mdl{font-family:var(--mono);font-size:12.5px;color:var(--ink);white-space:nowrap}
.xtab .bd{color:var(--ink);font-weight:600;white-space:nowrap}
.xtab .ty{display:inline-block;font-size:11px;color:var(--ink2);background:#f2f9f5;border:1px solid var(--line2);padding:2px 8px;white-space:nowrap}
.xtab .ty.na{color:var(--ink3);background:#fff;border-color:var(--line2)}
.xtab a{color:var(--navy);border-bottom:1px solid rgba(15,108,55,.22)}
.xtab a:hover{color:var(--cyan);border-color:var(--cyan)}
.xnote{font-size:12px;color:var(--ink3);line-height:1.9;margin-top:16px}

@media(max-width:760px){
  .bgrp{grid-template-columns:1fr;gap:10px;padding:20px 0}
  .bgrp .c{padding-top:0}
  .bgrp .list a{font-size:13.5px;padding:7px 11px}
  /* 机型表在窄屏改为竖排卡片，避免横向滚动看不到资料链接 */
  .xtab-wrap{background:transparent;border:0;box-shadow:none;overflow:visible}
  .xtab{display:block;min-width:0;font-size:13.5px}
  .xtab thead{display:none}
  .xtab tbody{display:block}
  .xtab tr{display:block;background:#fff;border:1px solid var(--line);padding:14px 16px 12px;margin-bottom:10px;
    box-shadow:0 1px 2px rgba(9,62,32,.03)}
  .xtab td{display:block;border:0;padding:0}
  .xtab td:nth-child(1){font-size:14.5px;margin-bottom:6px}
  .xtab td:nth-child(1) .mdl{white-space:normal;font-size:13.5px}
  .xtab td:nth-child(2){display:inline-block;margin-right:10px;font-size:13px}
  .xtab td:nth-child(3){display:inline-block}
  .xtab td:nth-child(4){margin-top:10px;padding-top:10px;border-top:1px solid var(--line2);font-size:12.5px;line-height:1.75}
  .xtab td:nth-child(4) a{display:block}
}

/* ---------- FAQ 问答块（对用户可读，对 AI 与搜索可抽取） ---------- */
.faq{display:grid;gap:14px;margin-top:6px}
.faq .qi{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:22px 24px}
.faq .qi h3{font-size:15.5px;line-height:1.62;font-weight:700;color:var(--navy);margin:0 0 10px;display:flex;gap:10px;align-items:flex-start}
.faq .qi h3::before{content:"Q";font-family:var(--mono);font-size:11px;color:#fff;background:var(--teal);
  width:20px;height:20px;border-radius:5px;display:grid;place-items:center;flex:0 0 20px;margin-top:2px}
.faq .qi p{font-size:14px;line-height:1.92;color:var(--ink2)}
.faq .qi p+p{margin-top:8px}
@media (max-width:720px){.faq .qi{padding:17px 18px}.faq .qi h3{font-size:14.5px}}

/* ---------- 相关阅读 / 上下篇（内链） ---------- */
.relbox{margin-top:44px;border-top:1px solid var(--line);padding-top:34px}
.relbox h2{font-size:16px;font-weight:700;color:var(--navy);margin:0 0 16px;letter-spacing:.01em}
.relbox .rel{display:grid;gap:10px}
.relbox .rel a{display:flex;gap:12px;align-items:baseline;font-size:14px;line-height:1.7;color:var(--ink2);
  padding:12px 16px;border:1px solid var(--line2);border-radius:10px;background:var(--card1);transition:.16s}
.relbox .rel a:hover{border-color:var(--teal);color:var(--navy);background:#fff}
.relbox .rel a i{font-family:var(--mono);font-style:normal;font-size:11px;color:var(--ink3);flex:0 0 auto}
.pn{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
.pn a{font-size:13.5px;line-height:1.6;color:var(--ink2);padding:12px 16px;border:1px solid var(--line2);
  border-radius:10px;background:var(--card1)}
.pn a:hover{border-color:var(--teal);color:var(--navy)}
.pn .n{grid-column:2;text-align:right}
@media (max-width:720px){.pn{grid-template-columns:1fr}.pn .n{grid-column:1;text-align:left}}
.side h2.sideh{font-size:13px;font-weight:700;color:var(--navy);letter-spacing:.06em;margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.side h2.sideh+*{margin-top:0}

/* ---------- 简化气路（PLD 页，三段式产品卡片） ---------- */
.gp{display:grid;grid-template-columns:1fr 54px 1fr 54px 1fr;align-items:stretch;margin-top:44px}
.gp-c{position:relative;display:flex;flex-direction:column;padding:22px 22px 24px;
  background:#fff;border:1px solid var(--line);border-radius:2px;
  box-shadow:0 1px 2px rgba(3,46,24,.03),0 16px 34px -26px rgba(3,46,24,.35);transition:.2s}
a.gp-c:hover{transform:translateY(-3px);border-color:#bfe6cf;box-shadow:0 24px 42px -26px rgba(3,46,24,.42)}
.gp-n{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--teal)}
.gp-th{height:146px;display:flex;align-items:center;justify-content:center;margin:10px 0 16px}
.gp-th img{max-height:142px;max-width:100%;width:auto;object-fit:contain}
.gp-th--icon{color:var(--teal)}
.gp-th--icon svg{width:132px;height:auto}
.gp-c b{font-size:15.5px;font-weight:700;color:var(--navy);letter-spacing:.01em}
.gp-c em{font-style:normal;font-family:var(--mono);font-size:11px;letter-spacing:.07em;color:var(--ink3);margin:7px 0 9px}
.gp-c p{font-size:12.5px;line-height:1.78;color:var(--ink2)}
.gp-ar{display:flex;align-items:center;justify-content:center;color:var(--teal);opacity:.55}
.gp-meta{display:flex;flex-wrap:wrap;gap:8px 34px;margin-top:24px;padding-top:18px;
  border-top:1px solid var(--line);font-size:12.5px;color:var(--ink2)}
.gp-meta span::before{content:"·";margin-right:9px;color:var(--teal)}
.gp-meta a{color:var(--navy);border-bottom:1px solid rgba(0,156,69,.35)}
@media (max-width:900px){
  .gp{grid-template-columns:1fr;margin-top:34px}
  .gp-ar{height:34px}
  .gp-ar svg{transform:rotate(90deg)}
  .gp-th{height:120px}
  .gp-th img{max-height:116px}
  .gp-meta{flex-direction:column;gap:8px}
}