/* ============================================================
   FDJZG.COM · 中国发电机组配件销售中心
   设计语言：墨钢 + 中国红 + 柴油金，齿轮活塞与工业装配线
   ============================================================ */
:root{
  --coral:#C5392E;        /* 中国红：强调、行动、适配标识 */
  --coral-d:#9A2B22;
  --coral-l:#FBEAE7;
  --sea:#313D46;          /* 墨钢：主色 */
  --sea-d:#20282E;
  --sea-l:#E9EBED;
  --teal:#B98A2F;         /* 柴油金：辅助标识 */
  --teal-l:#F5EEDA;
  --sand:#F8F6F1;         /* 米白：区块底 */
  --sand-d:#EFEADC;
  --ink:#191E22;
  --ink2:#38424A;
  --gray:#69747B;
  --gray-l:#959FA5;
  --line:#DFE1E4;
  --line2:#EFF1F3;
  --bg:#FFFFFF;
  --bg2:#FAFBFC;
  --wrap:1200px;
  --r:14px;
  --r-l:20px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",-apple-system,"Segoe UI",Arial,sans-serif;
  color:var(--ink);background:var(--bg);font-size:15.5px;line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.hide-s{display:inline}

/* ---------- 顶部工具条 ---------- */
.topbar{background:var(--sea-d);color:#CACFD2;font-size:12.5px;letter-spacing:.01em}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;height:38px}
.topbar b{color:#fff;font-weight:600}
.topbar a{color:#fff}
.tb-right{display:flex;gap:18px;align-items:center;white-space:nowrap}
.tb-right a{font-weight:600;letter-spacing:.02em}

/* ---------- 导航 ---------- */
.nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60}
.nav-in{display:flex;align-items:center;gap:26px;height:76px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand img{width:auto;height:42px}
.bt{display:flex;flex-direction:column;line-height:1.25}
.bt b{font-size:15.5px;letter-spacing:.01em;font-weight:700}
.bt span{font-size:11px;color:var(--gray);letter-spacing:.06em;text-transform:uppercase}
.nav-links{display:flex;gap:24px;margin-left:auto;font-size:14.5px}
.nav-links a{position:relative;padding:6px 0;color:var(--ink2);white-space:nowrap}
.nav-links a:hover{color:var(--coral)}
.nav-links a.on{color:var(--coral);font-weight:600}
.nav-links a.on::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--coral)}
.nav-tel{flex:0 0 auto}
.btn-tel{
  display:inline-flex;align-items:center;gap:7px;background:var(--coral);color:#fff;
  padding:10px 17px;border-radius:10px;font-size:14.5px;font-weight:600;letter-spacing:.02em;
  transition:.18s;
}
.btn-tel:hover{background:var(--coral-d)}
.burger{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;
  align-items:center;justify-content:center;font-size:18px;color:var(--ink);cursor:pointer}

/* ---------- 通用区块 ---------- */
.sec{padding:74px 0}
.sec-alt{background:var(--sand)}
.sec-head{max-width:760px;margin-bottom:38px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:600;color:var(--sea);
  letter-spacing:.16em;text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--coral)}
.h2{font-size:31px;line-height:1.32;letter-spacing:-.01em;font-weight:700}
.h2 em{font-style:normal;color:var(--coral)}
.h3{font-size:20px;font-weight:700;letter-spacing:-.005em}
.lead{color:var(--gray);font-size:15px;margin-top:14px;line-height:1.85}
.rule{height:1px;background:var(--line);margin:0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;background:var(--coral);color:#fff;
  padding:14px 26px;border-radius:10px;font-size:15px;font-weight:600;border:0;cursor:pointer;transition:.18s;
}
.btn:hover{background:var(--coral-d)}
.btn-ghost{background:#fff;color:var(--sea);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--sea);background:var(--sea-l)}
.btn-line{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45)}
.btn-line:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:10px 18px;font-size:14px}

/* ---------- 首屏 ---------- */
.hero{background:linear-gradient(180deg,#F6F8FA 0%,#fff 62%);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:66px;pointer-events:none;
  background:radial-gradient(120% 100% at 50% 100%,rgba(49,61,70,.07),transparent 70%)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(to right,rgba(49,61,70,.05) 1px,transparent 1px) 0 0/72px 72px,
    linear-gradient(to bottom,rgba(49,61,70,.05) 1px,transparent 1px) 0 0/72px 72px;
  mask-image:linear-gradient(to bottom,#000 0%,transparent 88%);
  -webkit-mask-image:linear-gradient(to bottom,#000 0%,transparent 88%);
}
.hero-in{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;padding-top:64px;padding-bottom:58px;align-items:start}
.hero-tag{
  display:inline-flex;align-items:center;gap:10px;background:var(--coral-l);color:var(--coral-d);
  font-size:12.5px;font-weight:600;letter-spacing:.06em;padding:6px 13px;border-radius:999px;margin-bottom:20px;
}
.hero-tag s{width:6px;height:6px;background:var(--coral);border-radius:50%;text-decoration:none}
.h1{font-size:46px;line-height:1.22;letter-spacing:-.015em;font-weight:700}
.h1 em{font-style:normal;color:var(--coral);position:relative}
.h1 em::after{content:"";position:absolute;left:0;right:0;bottom:3px;height:7px;background:rgba(197,57,46,.16);z-index:-1;border-radius:2px}
.hero-sub{color:var(--ink2);font-size:16px;line-height:1.85;margin-top:20px;max-width:540px}
.hero-sub b{color:var(--ink);font-weight:600}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-meta{display:flex;gap:26px;flex-wrap:wrap;margin-top:26px;padding-top:22px;border-top:1px solid var(--line2)}
.hero-meta div{font-size:13px;color:var(--gray)}
.hero-meta b{display:block;font-size:19px;color:var(--ink);font-weight:700;letter-spacing:-.01em}
.hero-meta b i{font-style:normal;font-size:12px;color:var(--gray);font-weight:500;margin-left:2px}

/* 右侧报修卡 */
.rcard{background:#fff;border:1px solid var(--line);border-top:4px solid var(--coral);border-radius:var(--r-l);
  box-shadow:0 20px 50px -24px rgba(32,40,46,.34);padding:26px 24px 22px}
.rcard h3{font-size:17px;font-weight:700;display:flex;align-items:center;gap:8px}
.rcard h3 span{color:var(--gray);font-size:12px;font-weight:500;letter-spacing:.04em}
.rcard p.sm{font-size:12.5px;color:var(--gray);margin:8px 0 16px}
.rcard label{display:block;font-size:12.5px;color:var(--gray);margin-bottom:5px}
.rcard input,.rcard select,.rcard textarea{
  width:100%;border:1px solid var(--line);background:#fff;border-radius:2px;padding:10px 12px;
  font-size:14px;font-family:inherit;color:var(--ink);transition:.15s;
}
.rcard input:focus,.rcard select:focus,.rcard textarea:focus{outline:none;border-color:var(--sea);box-shadow:0 0 0 3px rgba(49,61,70,.08)}
.rcard .row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.rcard .f{margin-bottom:12px}
.rcard .btn{width:100%;justify-content:center;margin-top:4px}
.rcard .tip{font-size:11.5px;color:var(--gray-l);text-align:center;margin-top:10px;line-height:1.6}

/* ---------- 数据条 ---------- */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:26px 24px;border-left:1px solid var(--line2)}
.stat:first-child{border-left:0;padding-left:0}
.stat b{display:block;font-size:30px;line-height:1.1;font-weight:700;letter-spacing:-.02em;color:var(--sea)}
.stat b i{font-style:normal;font-size:15px;color:var(--gray);margin-left:3px;font-weight:500}
.stat span{display:block;font-size:12.8px;color:var(--gray);margin-top:6px}

/* ---------- 功率谱系带 ---------- */
.band{background:#fff;border:1px solid var(--line);padding:26px 26px 20px;border-radius:var(--r)}
.band-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:18px;flex-wrap:wrap;gap:10px}
.band-top h3{font-size:16px;font-weight:700}
.band-top span{font-size:12.5px;color:var(--gray)}
.band-track{display:flex;height:12px;border-radius:2px;overflow:hidden;margin-bottom:14px}
.band-track i{display:block;height:100%}
.band-legend{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.band-legend div{font-size:12.5px;color:var(--gray)}
.band-legend b{display:block;font-size:13.5px;color:var(--ink);font-weight:600;margin-bottom:2px}
.band-legend s{display:inline-block;width:9px;height:9px;border-radius:2px;margin-right:6px;text-decoration:none}

/* ---------- 业务卡 ---------- */
.biz-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.biz{padding:28px 24px 30px;border:1px solid var(--line);border-radius:var(--r);position:relative;
  transition:.22s;background:#fff;overflow:hidden}
.biz::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--coral);opacity:.9}
.biz:first-child{border-left:1px solid var(--line)}
.biz:hover{background:#fff;border-color:#C7CBCF;box-shadow:0 18px 40px -26px rgba(32,40,46,.45);transform:translateY(-3px)}
.biz:nth-child(2)::before{background:var(--sea)}
.biz:nth-child(3)::before{background:var(--teal)}
.biz:nth-child(4)::before{background:#5E7A3C}
.biz-n{font-size:12px;font-weight:700;color:var(--coral);letter-spacing:.1em}
.biz h3{font-size:18px;font-weight:700;margin:10px 0 4px}
.biz .en{font-size:11px;color:var(--gray-l);letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px}
.biz p{font-size:13.5px;color:var(--gray);line-height:1.82}
.biz ul{margin-top:14px;display:flex;flex-direction:column;gap:6px}
.biz ul li{font-size:13px;color:var(--ink2);padding-left:13px;position:relative}
.biz ul li::before{content:"";position:absolute;left:0;top:.72em;width:5px;height:1px;background:var(--gray-l)}
.biz .more{display:inline-block;margin-top:16px;font-size:13px;color:var(--sea);font-weight:600}
.biz .more::after{content:" →"}

/* ---------- 标签页 ---------- */
.tabs{display:flex;gap:0;border-bottom:1px solid var(--line);margin-bottom:0;flex-wrap:wrap}
.tab{
  background:none;border:0;border-bottom:2px solid transparent;padding:13px 22px;font-size:14.5px;
  color:var(--gray);cursor:pointer;font-family:inherit;font-weight:500;margin-bottom:-1px;
}
.tab:hover{color:var(--ink)}
.tab.on{color:var(--coral);border-bottom-color:var(--coral);font-weight:700}
.tpanel{display:none}
.tpanel.on{display:block}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-top:0;background:#fff;border-radius:0 0 var(--r) var(--r)}
.tbl{width:100%;border-collapse:collapse;font-size:13.6px;min-width:620px}
.tbl thead th{
  background:var(--sea-d);color:#fff;font-weight:600;text-align:left;padding:12px 16px;
  font-size:12.8px;letter-spacing:.04em;white-space:nowrap;
}
.tbl td{padding:11px 16px;border-bottom:1px solid var(--line2);color:var(--ink2);vertical-align:top}
.tbl tbody tr:nth-child(even){background:#FAFBFC}
.tbl tbody tr:hover{background:var(--sea-l)}
.tbl td b{color:var(--ink);font-weight:600}
.tbl .kw{color:var(--coral);font-weight:700}
.tbl .num{font-variant-numeric:tabular-nums}
.tbl-note{font-size:12.2px;color:var(--gray-l);margin-top:10px;line-height:1.7}

/* ---------- 故障速查 ---------- */
.fault-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;border-top:1px solid var(--line)}
.fault{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line2)}
.fault-n{flex:0 0 28px;height:28px;border-radius:50%;background:var(--coral-l);color:var(--coral-d);
  display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-top:1px}
.fault h4{font-size:15px;font-weight:700;margin-bottom:3px}
.fault p{font-size:13.2px;color:var(--gray);line-height:1.75}
.fault p b{color:var(--ink2);font-weight:600}

/* ---------- 维修分级表 ---------- */
.grade{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.grade>div{background:#fff;padding:24px 22px;border:1px solid var(--line);border-radius:var(--r)}
.grade h4{font-size:15.5px;font-weight:700;display:flex;align-items:baseline;gap:8px}
.grade h4 span{font-size:11.5px;color:var(--gray-l);letter-spacing:.08em;text-transform:uppercase;font-weight:500}
.grade .hr{font-size:12.5px;color:var(--coral);font-weight:600;margin:8px 0 10px}
.grade p{font-size:13px;color:var(--gray);line-height:1.8}
.grade ul{margin-top:10px;display:flex;flex-direction:column;gap:5px}
.grade ul li{font-size:12.6px;color:var(--ink2);padding-left:12px;position:relative}
.grade ul li::before{content:"";position:absolute;left:0;top:.74em;width:4px;height:4px;background:var(--line);border-radius:50%}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;counter-reset:s}
.step{position:relative;padding-top:20px;border-top:2px solid var(--line)}
.step::before{
  counter-increment:s;content:"0" counter(s);position:absolute;top:-11px;left:0;background:var(--bg);
  padding-right:10px;font-size:12px;font-weight:700;color:var(--coral);letter-spacing:.08em;
}
.sec-alt .step::before{background:var(--sand)}
.step h4{font-size:15.5px;font-weight:700;margin-bottom:6px}
.step p{font-size:13.2px;color:var(--gray);line-height:1.78}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;
  transition:.2s;position:relative;overflow:hidden}
.case::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--sea);opacity:.25}
.case:hover{border-color:var(--sea);box-shadow:0 18px 40px -24px rgba(32,40,46,.42)}
.case:hover::before{opacity:1;background:var(--coral)}
.case-tag{display:inline-block;font-size:11.5px;font-weight:600;color:var(--sea);background:var(--sea-l);padding:3px 10px;letter-spacing:.05em;border-radius:999px}
.case h4{font-size:15.5px;font-weight:700;margin:12px 0 8px;line-height:1.5}
.case p{font-size:13px;color:var(--gray);line-height:1.78}
.case .res{display:flex;gap:16px;margin-top:14px;padding-top:12px;border-top:1px solid var(--line2);font-size:12.2px;color:var(--gray)}
.case .res b{color:var(--coral);font-weight:700}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:0}
.faq summary{
  cursor:pointer;list-style:none;padding:19px 40px 19px 0;font-size:15.5px;font-weight:600;
  position:relative;color:var(--ink);transition:.15s;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--gray-l);
}
.faq details[open] summary{color:var(--coral)}
.faq details[open] summary::after{content:"−";color:var(--coral)}
.faq .a{padding:0 40px 20px 0;font-size:14px;color:var(--gray);line-height:1.88}
.faq .a b{color:var(--ink2);font-weight:600}

/* ---------- CTA ---------- */
.cta{background:linear-gradient(135deg,#313D46 0%,#20282E 62%,#14191D 100%);color:#fff;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(197,57,46,.30),transparent 68%)}
.cta-in{position:relative;display:grid;grid-template-columns:1fr .92fr;gap:56px;padding-top:64px;padding-bottom:64px;align-items:center}
.cta h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
.cta h2 em{font-style:normal;color:#E9B2AA}
.cta p{color:#BDC4C8;font-size:14.5px;margin-top:14px;line-height:1.85}
.cta .tel-big{display:flex;align-items:center;gap:14px;margin-top:26px;flex-wrap:wrap}
.cta .tel-big a{font-size:27px;font-weight:700;letter-spacing:.02em;color:#fff}
.cta .tel-big span{font-size:12.5px;color:#8E9AA0}
.cform{background:#fff;padding:26px 24px;border-radius:var(--r-l);color:var(--ink);box-shadow:0 20px 50px -26px rgba(0,0,0,.4)}
.cform h3{font-size:16.5px;font-weight:700;margin-bottom:4px}
.cform p.sm{font-size:12.5px;color:var(--gray);margin-bottom:16px}
.cform label{display:block;font-size:12.5px;color:var(--gray);margin-bottom:5px}
.cform input,.cform select,.cform textarea{
  width:100%;border:1px solid var(--line);background:#fff;border-radius:2px;padding:10px 12px;
  font-size:14px;font-family:inherit;color:var(--ink);transition:.15s;
}
.cform input:focus,.cform select:focus,.cform textarea:focus{outline:none;border-color:var(--sea);box-shadow:0 0 0 3px rgba(49,61,70,.08)}
.cform .row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.cform .f{margin-bottom:12px}
.cform .btn{width:100%;justify-content:center}
.cform .tip{font-size:11.5px;color:var(--gray-l);text-align:center;margin-top:10px}

/* ---------- 子页页头 ---------- */
.phead{background:linear-gradient(120deg,#313D46 0%,#20282E 100%);color:#fff;position:relative;overflow:hidden}
.phead::before{content:"";position:absolute;inset:0;
  background:linear-gradient(to right,rgba(255,255,255,.05) 1px,transparent 1px) 0 0/72px 72px,
             linear-gradient(to bottom,rgba(255,255,255,.05) 1px,transparent 1px) 0 0/72px 72px}
.phead .wrap{position:relative;padding:46px 24px 40px}
.crumb{font-size:12.5px;color:#8E9AA0;margin-bottom:14px}
.crumb a{color:#C9CED1}
.crumb a:hover{color:#fff}
.phead h1{font-size:36px;line-height:1.3;font-weight:700;letter-spacing:-.015em}
.phead p{color:#BEC4C8;font-size:14.5px;margin-top:13px;max-width:720px;line-height:1.85}
.phead-stats{display:grid;grid-template-columns:repeat(3,auto);gap:44px;margin-top:28px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16);justify-content:start}
.phead-stats div{font-size:12.5px;color:#8E9AA0}
.phead-stats b{display:block;font-size:24px;color:#fff;font-weight:700;letter-spacing:-.01em}
.phead-stats b i{font-style:normal;font-size:13px;color:#8E9AA0;margin-left:2px;font-weight:500}

/* ---------- 内容排版 ---------- */
.prose{max-width:860px}
.prose h2{font-size:24px;font-weight:700;margin:36px 0 14px;letter-spacing:-.01em}
.prose h3{font-size:18px;font-weight:700;margin:26px 0 10px}
.prose p{margin:12px 0;color:var(--ink2);line-height:1.9}
.prose ul{margin:14px 0 14px 2px;display:flex;flex-direction:column;gap:9px}
.prose ul li{position:relative;padding-left:18px;color:var(--ink2);font-size:14.6px;line-height:1.85}
.prose ul li::before{content:"";position:absolute;left:0;top:.78em;width:6px;height:2px;background:var(--coral)}
.prose strong{color:var(--ink);font-weight:700}
.note{background:var(--bg2);border-left:2px solid var(--coral);padding:16px 18px;font-size:13.6px;color:var(--ink2);line-height:1.85;margin:20px 0}
.note b{color:var(--coral-d)}

/* 两栏 */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start}
.split-6{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}

/* 小卡片族 */
.cardgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:#fff;border:1px solid var(--line);padding:24px 22px;border-radius:var(--r)}
.card h4{font-size:16px;font-weight:700;margin-bottom:8px}
.card p{font-size:13.2px;color:var(--gray);line-height:1.8}
.card .n{font-size:11.5px;color:var(--coral);font-weight:700;letter-spacing:.1em;margin-bottom:8px}

/* 规格清单 */
.speclist{border-top:1px solid var(--line)}
.speclist div{display:grid;grid-template-columns:190px 1fr;gap:18px;padding:13px 0;border-bottom:1px solid var(--line2);font-size:14px}
.speclist dt{color:var(--gray);font-size:13.4px}
.speclist dd{color:var(--ink);font-weight:500}

/* 联系页 */
.clist{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.clist>div{background:#fff;padding:26px 24px;border:1px solid var(--line);border-radius:var(--r)}
.clist .k{font-size:12px;color:var(--gray);letter-spacing:.06em;margin-bottom:6px;text-transform:uppercase}
.clist .v{font-size:19px;font-weight:700;letter-spacing:-.005em;word-break:break-all}
.clist .v small{display:block;font-size:12.5px;font-weight:400;color:var(--gray);margin-top:4px;letter-spacing:0}
.clist a.v{color:var(--coral)}
.mapbox{border:1px solid var(--line);background:var(--sand);padding:18px;display:flex;gap:16px;align-items:center;border-radius:var(--r)}
.mapbox svg{flex:0 0 92px;height:92px}

/* ---------- 页脚 ---------- */
.footer{background:#101418;color:#939EA4;font-size:13px;padding:56px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.25fr;gap:38px;padding-bottom:36px}
.footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;letter-spacing:.02em}
.footer ul{display:flex;flex-direction:column;gap:9px}
.footer a{color:#939EA4}
.footer a:hover{color:#fff}
.fbrand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.fbrand img{height:38px;width:auto}
.fbrand span{display:flex;flex-direction:column;line-height:1.3;color:#fff}
.fbrand b{font-size:15px}
.fbrand span span{font-size:10.5px;color:#6F7A81;letter-spacing:.1em}
.footer p.desc{font-size:12.6px;line-height:1.9;max-width:330px;color:#7E8990}
.copy{border-top:1px solid rgba(255,255,255,.09);padding:18px 0;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:12.2px;color:#6F7A81}

/* 悬浮 */
.float{position:fixed;right:18px;bottom:18px;z-index:80;display:flex;flex-direction:column;gap:8px}
.float a{
  display:flex;align-items:center;gap:8px;background:var(--coral);color:#fff;padding:11px 16px;
  border-radius:999px;font-size:13.5px;font-weight:600;box-shadow:0 10px 26px -10px rgba(154,43,34,.7);
}
.float a.b{background:var(--sea)}

/* 动效 */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .nav-links{gap:16px;font-size:13.5px}
  .h1{font-size:38px}
  .hero-in{gap:34px}
  .biz-grid{grid-template-columns:1fr 1fr}
  .biz-grid{gap:14px}
  .grade{grid-template-columns:1fr 1fr}
  .case-grid{grid-template-columns:1fr 1fr}
  .band-legend{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:860px){
  .hide-s{display:none}
  .hide-m{display:none}
  .nav-in{height:64px;gap:10px}
  .brand img{height:36px}
  .bt b{font-size:13.5px}
  .bt span{display:none}
  .nav-tel{margin-left:auto}
  .btn-tel{padding:8px 11px;font-size:12.5px;letter-spacing:0}
  .burger{display:flex;flex:0 0 auto;margin-left:2px}
  .nav-links{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;gap:0;padding:6px 0;box-shadow:0 18px 30px -18px rgba(0,0,0,.22)}
  .nav-links.open{display:flex}
  .nav-links a{padding:13px 24px;font-size:15px;border-bottom:1px solid var(--line2)}
  .nav-links a.on::after{display:none}
  .hero-in{grid-template-columns:1fr;padding-top:38px;padding-bottom:44px}
  .h1{font-size:31px}
  .hero-sub{font-size:15px}
  .hero-meta{gap:18px 30px}
  .sec{padding:48px 0}
  .h2{font-size:24px}
  .stats .wrap{grid-template-columns:1fr 1fr}
  .stat{padding:20px 16px;border-left:0;border-top:1px solid var(--line2)}
  .stat:nth-child(-n+2){border-top:0}
  .stat:first-child,.stat:nth-child(3){padding-left:0}
  .biz-grid{grid-template-columns:1fr}
  .biz{padding:24px 20px 26px}
  .fault-grid{grid-template-columns:1fr;gap:0}
  .grade{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr;gap:24px}
  .case-grid,.cardgrid{grid-template-columns:1fr}
  .cta-in{grid-template-columns:1fr;padding-top:44px;padding-bottom:44px;gap:30px}
  .cta h2{font-size:25px}
  .phead h1{font-size:26px}
  .phead-stats{gap:24px;grid-template-columns:1fr 1fr}
  .split,.split-6{grid-template-columns:1fr;gap:30px}
  .footer{padding-top:40px}
  .foot-grid{grid-template-columns:1fr}
  .clist{grid-template-columns:1fr}
  .speclist div{grid-template-columns:1fr;gap:2px}
  .band-legend{grid-template-columns:1fr 1fr}
  .tab{padding:11px 14px;font-size:13.5px}
  .float a{padding:10px 13px;font-size:12.5px}
}
@media(max-width:480px){
  .h1{font-size:27px}
  .hero-meta b{font-size:17px}
  .stat b{font-size:24px}
  .steps{grid-template-columns:1fr}
  .nav-in{gap:7px;height:60px}
  .brand{gap:8px}
  .brand img{height:32px}
  .bt b{font-size:12.5px}
  .nav-tel{margin-left:auto}
  .btn-tel{padding:8px 10px;font-size:12px;letter-spacing:0;border-radius:8px}
  .burger{width:36px;height:36px;font-size:16px;border-radius:8px;margin-left:0}
}

/* ============================================================
   配件站专属区块：品牌专区 / 品类网格 / 发货时效条 / 查件三要素
   ============================================================ */
.area-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.area{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 22px 20px;
  position:relative;transition:.2s}
.area:hover{border-color:#BCC3C7;box-shadow:0 16px 36px -26px rgba(32,40,46,.42);transform:translateY(-2px)}
.area-h{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:3px}
.area-h h4{font-size:17px;font-weight:700;letter-spacing:-.005em}
.area-h span{font-size:11px;color:var(--gray-l);letter-spacing:.1em;text-transform:uppercase;white-space:nowrap}
.area .meta{font-size:12.6px;color:var(--gray);margin:5px 0 12px;line-height:1.7}
.area .meta b{color:var(--coral);font-weight:700}
.st-tags{display:flex;flex-wrap:wrap;gap:6px}
.st{font-size:12px;color:var(--sea);background:var(--sea-l);border-radius:6px;padding:3px 8px;line-height:1.55;
  white-space:nowrap}
.area .note-s{font-size:12.2px;color:var(--gray);margin-top:12px;padding-top:10px;border-top:1px solid var(--line2);line-height:1.72}

/* 街道大表 */
.zone-tbl td:first-child{white-space:nowrap;font-weight:600;color:var(--ink)}
.zone-tbl td:nth-child(2){line-height:2}
.zone-tbl .num{white-space:nowrap}

/* 台风季 / 应急专题 */
.typhoon{background:linear-gradient(135deg,#313D46 0%,#20282E 100%);color:#fff;border-radius:var(--r-l);
  padding:34px 34px 32px;position:relative;overflow:hidden}
.typhoon::after{content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(197,57,46,.26),transparent 68%)}
.typhoon .typo-head{position:relative;display:flex;justify-content:space-between;align-items:flex-start;
  gap:20px;flex-wrap:wrap}
.typhoon h3{font-size:24px;font-weight:700;letter-spacing:-.01em}
.typhoon h3 em{font-style:normal;color:#E9B2AA}
.typhoon p{color:#BDC4C8;font-size:13.8px;margin-top:10px;line-height:1.88;max-width:660px}
.tph-grid{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.tph{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:var(--r);
  padding:18px 18px 16px}
.tph b{display:block;font-size:14.5px;margin-bottom:6px;font-weight:600}
.tph span{display:block;font-size:12.5px;color:#ADB6BB;line-height:1.78}
.tph i{font-style:normal;font-size:11px;color:#E9B2AA;font-weight:700;letter-spacing:.12em;display:block;margin-bottom:6px}

/* 中心城区 / 外围城区 */
.island{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.island>div{border:1px dashed #C9CDD1;border-radius:var(--r);padding:18px 20px;background:#fff}
.island h4{font-size:15px;font-weight:700;margin-bottom:6px;display:flex;align-items:center;gap:8px}
.island h4 s{text-decoration:none;width:8px;height:8px;border-radius:50%;background:var(--teal);flex:0 0 auto}
.island p{font-size:13px;color:var(--gray);line-height:1.82}

/* 到场时效条 */
.etline{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.et{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 16px 16px;text-align:center}
.et b{display:block;font-size:22px;color:var(--sea);font-weight:700;letter-spacing:-.01em}
.et b i{font-style:normal;font-size:13px;color:var(--gray);margin-left:2px;font-weight:500}
.et span{display:block;font-size:12.4px;color:var(--gray);margin-top:4px}

/* 标签组 */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font-size:12.8px;color:var(--ink2);background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:5px 12px;line-height:1.6}
.chip.c{background:var(--coral-l);border-color:#EFD1CB;color:var(--coral-d)}

@media(max-width:1080px){
  .area-grid,.tph-grid{grid-template-columns:1fr 1fr}
  .etline{grid-template-columns:1fr 1fr}
}
@media(max-width:860px){
  .area-grid,.tph-grid,.island{grid-template-columns:1fr}
  .typhoon{padding:24px 20px 26px}
  .typhoon h3{font-size:20px}
  .etline{grid-template-columns:1fr 1fr}
}