/* ===========================================================
   乐清市万丰自动化设备厂  —  浅色版（白底 + 橙色强调）
   =========================================================== */

:root{
  --bg:#ffffff;
  --bg2:#f4f7fb;
  --surface:#ffffff;
  --surface2:#f8fafc;
  --line:#e3e9f2;
  --text:#111a2b;
  --text2:#3d4c63;
  --muted:#6b7a90;
  --accent:#e0530c;          /* 白底上更稳的橙 */
  --accent2:#ff6a13;
  --accent-dim:rgba(224,83,12,.09);
  --maxw:1240px;
  --r:14px;
  --nav-h:66px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#111a2b;color:#b9c4d4;font-size:13px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px;gap:16px;flex-wrap:wrap}
.topbar a{color:#dfe6f0}
.topbar a:hover{color:#ff8b4d}
.topbar .hi{color:#ff8b4d}

/* ---------- 导航 ---------- */
.nav{
  position:sticky;top:0;z-index:50;height:var(--nav-h);
  background:rgba(255,255,255,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);box-shadow:0 1px 0 rgba(17,26,43,.03);
}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:100%;gap:20px}
.logo{display:flex;align-items:center;gap:11px;min-width:0}
.logo .mark{
  width:34px;height:34px;border-radius:9px;flex:0 0 34px;
  background:linear-gradient(140deg,var(--accent2),#b8420a);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:14px;color:#fff;letter-spacing:.5px;
}
.logo b{font-size:17px;letter-spacing:.4px;color:#111a2b;white-space:nowrap}
.logo span{display:block;font-size:11px;color:var(--muted);letter-spacing:1.5px}
.menu{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.menu a{padding:8px 13px;border-radius:8px;font-size:14.5px;color:var(--text2);transition:.18s;white-space:nowrap}
.menu a:hover{color:var(--accent);background:var(--accent-dim)}
.menu a.active{color:var(--accent);font-weight:600}
.menu .cta{background:var(--accent);color:#fff;font-weight:600;margin-left:6px}
.menu .cta:hover{background:#f4650e;color:#fff}
@media(max-width:900px){
  .nav{height:auto;padding:10px 0}
  .nav .wrap{flex-direction:column;align-items:flex-start;gap:8px}
  .menu a{padding:7px 9px;font-size:14px}
}

/* ---------- 通用区块 ---------- */
section{padding:88px 0}
.section-alt{background:var(--bg2)}
.kicker{
  display:inline-flex;align-items:center;gap:8px;color:var(--accent);
  font-size:12.5px;font-weight:800;letter-spacing:2.2px;text-transform:uppercase;margin-bottom:14px;
}
.kicker::before{content:"";width:26px;height:2px;background:var(--accent)}
h1,h2,h3,h4{line-height:1.3;font-weight:800;letter-spacing:.2px;color:#0f1729}
h2{font-size:34px;margin-bottom:16px}
h3{font-size:21px;margin-bottom:10px}
.lead{color:var(--muted);max-width:760px;font-size:16.5px}
.sec-head{margin-bottom:44px}
.center{text-align:center}
.center .lead{margin:0 auto}
@media(max-width:700px){section{padding:56px 0}h2{font-size:26px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:10px;
  font-weight:600;font-size:15.5px;background:var(--accent);color:#fff;transition:.2s;border:1px solid var(--accent);
}
.btn:hover{background:#f4650e;transform:translateY(-1px);box-shadow:0 8px 20px rgba(224,83,12,.22)}
.btn.ghost{background:#fff;border:1px solid #d3dceb;color:var(--text)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent);background:#fff}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}

/* ---------- Hero（浅色） ---------- */
.hero{
  position:relative;overflow:hidden;padding:96px 0 0;
  background:linear-gradient(180deg,#f7f9fd,#ffffff 55%,#f4f7fb);
  border-bottom:1px solid var(--line);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(17,26,43,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(17,26,43,.045) 1px,transparent 1px);
  background-size:64px 64px;mask-image:linear-gradient(180deg,#000,transparent 72%);
}
.hero .wrap{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero h1{font-size:52px;color:#0f1729;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero .lead{font-size:18px;color:var(--text2);max-width:560px}
.hero-art{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line);
  box-shadow:0 26px 60px rgba(17,26,43,.14);background:#fff}
.hero-art img{width:100%;height:460px;object-fit:cover}
.hero-badge{
  position:absolute;left:16px;bottom:16px;background:rgba(255,255,255,.96);
  border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:10px;
  padding:12px 16px;font-size:13.5px;color:var(--text2);box-shadow:0 8px 22px rgba(17,26,43,.12);
}
.hero-badge b{color:#0f1729;display:block;font-size:15px}
@media(max-width:980px){
  .hero{padding:64px 0 0}.hero-grid{grid-template-columns:1fr;gap:30px}
  .hero h1{font-size:34px}.hero-art img{height:280px}
}

/* ---------- 数据条 ---------- */
.stats{border-top:1px solid var(--line);margin-top:80px;background:#fff}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border-left:1px solid var(--line);border-right:1px solid var(--line)}
.stat{background:#fff;padding:26px 20px;text-align:center}
.stat b{display:block;font-size:30px;color:var(--accent);font-weight:800}
.stat span{font-size:13.5px;color:var(--muted)}
@media(max-width:760px){.stats .wrap{grid-template-columns:repeat(2,1fr)}}

/* ---------- 卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
@media(max-width:980px){.grid-3{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.grid-4{grid-template-columns:1fr}}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  transition:.25s;display:flex;flex-direction:column;box-shadow:0 1px 2px rgba(17,26,43,.04);
}
.card:hover{transform:translateY(-5px);border-color:#ffc7a8;box-shadow:0 18px 40px rgba(17,26,43,.13)}
.card .pic{position:relative;aspect-ratio:4/3;overflow:hidden;background:#eef2f8}
.card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover .pic img{transform:scale(1.06)}
.card .tag{
  position:absolute;top:14px;left:14px;background:var(--accent);color:#fff;font-size:12px;
  font-weight:700;padding:5px 11px;border-radius:6px;letter-spacing:.6px;
}
.card .body{padding:24px;flex:1;display:flex;flex-direction:column}
.card h3{margin-bottom:10px;transition:.2s}
.card:hover h3{color:var(--accent)}
.card p{color:var(--muted);font-size:14.8px;margin-bottom:16px}
.card ul{margin-bottom:20px}
.card li{position:relative;padding-left:18px;font-size:14.3px;color:var(--text2);margin-bottom:6px}
.card li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.card .more{margin-top:auto;color:var(--accent);font-weight:600;font-size:14.8px}

/* ---------- 优势 / 步骤 ---------- */
.feat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 24px;transition:.25s}
.feat:hover{border-color:#ffc7a8;box-shadow:0 14px 30px rgba(17,26,43,.09)}
.feat .ico{
  width:48px;height:48px;border-radius:12px;background:var(--accent-dim);border:1px solid rgba(224,83,12,.22);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.feat .ico svg{width:24px;height:24px;stroke:var(--accent);fill:none;stroke-width:1.7}
.feat h4{font-size:17px;margin-bottom:8px}
.feat p{color:var(--muted);font-size:14.5px}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:980px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.steps{grid-template-columns:1fr}}
.step{border:1px solid var(--line);border-radius:var(--r);padding:24px;background:#fff}
.step .n{
  width:38px;height:38px;border-radius:10px;background:var(--accent-dim);color:var(--accent);
  font-weight:800;font-size:16px;display:flex;align-items:center;justify-content:center;
  margin-bottom:14px;border:1px solid rgba(224,83,12,.2);
}
.step h4{font-size:16px;margin-bottom:6px}
.step p{color:var(--muted);font-size:14.3px}

/* ---------- chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:11px;margin-top:22px}
.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 18px;font-size:14px;color:var(--text2)}
.chip:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- 参数表 ---------- */
.table-wrap{border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
table.spec{width:100%;border-collapse:collapse;background:#fff}
table.spec th,table.spec td{padding:15px 20px;border-bottom:1px solid var(--line);font-size:15px;text-align:left}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:none}
table.spec th{width:34%;color:var(--muted);font-weight:500;background:#f8fafc}
table.spec td{color:var(--text)}
@media(max-width:600px){table.spec th{width:40%;padding:12px 14px}table.spec td{padding:12px 14px;font-size:14px}}

/* ---------- 图集 ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:860px){.gallery{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.gallery{grid-template-columns:1fr}}
.gallery figure{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.gallery img{width:100%;height:230px;object-fit:cover;transition:transform .45s}
.gallery figure:hover img{transform:scale(1.05)}
.gallery figcaption{padding:12px 15px;font-size:13.5px;color:var(--muted);border-top:1px solid var(--line)}

/* ---------- 视频 ---------- */
.video-box{position:relative;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#0b0e13;aspect-ratio:16/9}
.video-box iframe{width:100%;height:100%;border:0;display:block}
.video-note{margin-top:12px;font-size:14px;color:var(--muted)}

/* ---------- 横幅 ---------- */
.banner{
  border:1px solid var(--line);border-radius:18px;overflow:hidden;
  background:linear-gradient(120deg,rgba(255,106,19,.10),rgba(255,106,19,.02) 45%,#fff),#fff;
  padding:44px;
}
.banner-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center}
@media(max-width:900px){.banner-grid{grid-template-columns:1fr;gap:22px}.banner{padding:28px}}
.banner h2{font-size:28px;margin-bottom:12px}
.banner p{color:var(--muted)}
.banner-side{border:1px solid var(--line);border-radius:12px;padding:22px;background:#fff;text-align:center}
.banner-side img{width:120px;height:120px;margin:0 auto 12px;border-radius:20px}
.banner-side .v{color:var(--accent);font-weight:700;font-size:15px}
.banner-side .s{color:var(--muted);font-size:13.5px}

/* ---------- 联系 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px}
@media(max-width:900px){.contact-grid{grid-template-columns:1fr;gap:28px}}
.info-item{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.info-item:last-child{border-bottom:none}
.info-item .k{color:var(--muted);font-size:14px;flex:0 0 92px}
.info-item .v{font-size:15.5px}
.info-item .v a:hover{color:var(--accent)}

/* ---------- 页脚（浅） ---------- */
footer{background:#f4f7fb;border-top:1px solid var(--line);padding:54px 0 28px;font-size:14px;color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;margin-bottom:32px}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr;gap:24px}}
.foot-grid h5{font-size:15px;margin-bottom:14px;color:#0f1729}
.foot-grid a,.foot-grid p{color:var(--muted);display:block;margin-bottom:8px}
.foot-grid a:hover{color:var(--accent)}
.foot-bot{border-top:1px solid var(--line);padding-top:22px;font-size:13px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}

/* ---------- 子页头 ---------- */
.subhead{
  padding:68px 0 0;background:linear-gradient(180deg,#f7f9fd,#ffffff);
  border-bottom:1px solid var(--line);
}
.crumb{font-size:13.5px;color:var(--muted);margin-bottom:18px}
.crumb a:hover{color:var(--accent)}
.subhead h1{font-size:40px;margin-bottom:16px;color:#0f1729}
@media(max-width:700px){.subhead{padding:44px 0 0}.subhead h1{font-size:28px}}

/* ---------- 双栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:26px}}
.split img{border-radius:var(--r);border:1px solid var(--line)}
.list-check li{position:relative;padding-left:26px;margin-bottom:12px;color:var(--text2);font-size:15.3px}
.list-check li::before{
  content:"";position:absolute;left:6px;top:9px;width:7px;height:12px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(45deg);
}

/* ---------- 其他设备（小卡） ---------- */
.mini-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:980px){.mini-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){.mini-grid{grid-template-columns:repeat(2,1fr)}}
.mini{
  background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.22s;
}
.mini:hover{border-color:#ffc7a8;transform:translateY(-4px);box-shadow:0 12px 26px rgba(17,26,43,.10)}
.mini img{width:100%;height:150px;object-fit:cover;background:#eef2f8}
.mini .t{padding:12px 14px;font-size:14.5px;font-weight:600;color:#0f1729;line-height:1.5}
.mini .c{padding:0 14px 13px;font-size:12.5px;color:var(--accent)}

.totop{
  position:fixed;right:20px;bottom:20px;width:44px;height:44px;border-radius:11px;
  background:#fff;border:1px solid var(--line);color:var(--text2);
  display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;
  transition:.25s;z-index:60;font-size:18px;box-shadow:0 6px 18px rgba(17,26,43,.12);
}
.totop.show{opacity:1;pointer-events:auto}
.totop:hover{border-color:var(--accent);color:var(--accent)}

/* ---- 反馈表单（feedback.html） ---- */
.fb-lb{font-size:13px;color:#374151;margin:16px 0 6px;display:block}
.fb-chips{display:flex;flex-wrap:wrap;gap:8px}
.fb-chips button{border:1px solid #d1d5db;background:#fff;color:#4b5563;border-radius:16px;
  padding:6px 12px;font-size:13px;cursor:pointer;font-family:inherit}
.fb-chips button.on{border-color:#ff6a13;background:#fff3ea;color:#e0530c;font-weight:bold}
.fb-msg{display:none;margin-top:12px;font-size:13px;line-height:1.7;border-radius:8px;padding:10px 12px}
.fb-msg.ok{display:block;background:#ecfdf5;color:#065f46;border:1px solid #a7f3d0}
.fb-msg.err{display:block;background:#fff1f2;color:#9f1239;border:1px solid #fecdd3}