:root{
  --c-primary: #c9a27e;
  --c-primary-dark: #c9a27e;
  --font: 'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
}
/* ============================================
   光析精密仪器 PLUMLAB · 实验室分析/光学检测
   深紫 #2a1145 × 面板 #3a1a63 × 梅紫 #6d28d9
   点缀玫瑰金 #c9a27e · 标题近白 #f3eefb · 正文淡紫灰 #cfc2e6
   深色光学仪器官网 · 衬线标题 · 细线描边微光 · 圆角 12px
   ============================================ */
:root{
  --bg:#2a1145;
  --bg2:#24103c;
  --panel:#3a1a63;
  --panel2:#43206f;
  --purple:#6d28d9;
  --purple-d:#4a1a7a;
  --c-primary:#c9a27e;
  --gold-l:#d9b48f;
  --ink:#f3eefb;
  --mut:#cfc2e6;
  --line:#4d2a78;
  --line2:rgba(201,162,126,.28);
  --serif:Georgia,"Times New Roman","Noto Serif SC","STSong",serif;
  --sans:"Microsoft YaHei","PingFang SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--mut);line-height:1.75;font-size:15px}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}
h1,h2,h3,.serif{font-family:var(--serif);color:var(--ink)}

/* ---------- Header ---------- */
.hdr{position:sticky;top:0;z-index:100;background:rgba(42,17,69,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:78px}
.logo{display:flex;align-items:center;gap:12px}
.logo-txt b{display:block;font-family:var(--serif);font-size:20px;letter-spacing:2px;color:var(--ink)}
.logo-txt i{display:block;font-style:normal;font-size:10.5px;color:var(--gold);letter-spacing:3px}
.nav{display:flex;gap:4px}
.nav a{padding:9px 18px;color:var(--mut);font-size:15px;border-bottom:2px solid transparent;transition:.25s;border-radius:8px 8px 0 0}
.nav a:hover{color:var(--ink)}
.nav a.active{color:var(--gold);border-bottom-color:var(--gold);font-weight:700}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:8px;width:42px;height:38px;font-size:18px;color:var(--gold);cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:radial-gradient(1200px 500px at 80% -10%,#42206f 0%,var(--bg) 60%)}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-top:74px;padding-bottom:84px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line2);color:var(--gold);border-radius:999px;padding:5px 16px;font-size:12.5px;letter-spacing:2px;margin-bottom:22px;background:rgba(58,26,99,.5)}
.hero h1{font-size:44px;line-height:1.3;letter-spacing:1px;margin-bottom:18px;color:var(--ink)}
.hero h1 em{font-style:normal;color:var(--gold);border-bottom:3px solid var(--purple)}
.hero p{color:var(--mut);font-size:16px;max-width:480px;margin-bottom:32px}
.btn{display:inline-block;padding:13px 34px;border-radius:12px;font-size:15px;letter-spacing:1px;transition:.25s;cursor:pointer;border:none}
.btn-main{background:var(--purple);color:#fff}
.btn-main:hover{background:var(--purple-d);transform:translateY(-2px);box-shadow:0 12px 26px rgba(109,40,217,.45)}
.btn-ghost{border:1px solid var(--line2);color:var(--gold);margin-left:12px;background:transparent}
.btn-ghost:hover{background:rgba(201,162,126,.12);color:var(--ink)}
.hero-fig{position:relative}
.hero-fig img{width:100%;height:420px;object-fit:cover;border-radius:12px;border:1px solid var(--line2);box-shadow:0 20px 50px rgba(0,0,0,.4)}
.hero-medal{position:absolute;left:-26px;bottom:32px;background:var(--panel);border:1px solid var(--line2);border-radius:12px;padding:14px 22px;box-shadow:0 12px 30px rgba(0,0,0,.4)}
.hero-medal b{display:block;font-family:var(--serif);font-size:24px;color:var(--gold)}
.hero-medal span{font-size:12px;color:var(--mut);letter-spacing:1px}
.hero-nums{display:flex;gap:44px;margin-top:40px}
.hero-nums div b{font-family:var(--serif);font-size:30px;color:var(--ink)}
.hero-nums div b i{font-style:normal;font-size:16px;color:var(--gold)}
.hero-nums div span{display:block;font-size:12.5px;color:var(--mut);letter-spacing:1px}

/* ---------- 通用节标题 ---------- */
.sec{padding:84px 0}
.sec-alt{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{text-align:center;margin-bottom:52px}
.sec-head i{display:block;font-style:normal;color:var(--gold);font-size:13px;letter-spacing:5px;margin-bottom:10px}
.sec-head h2{font-size:32px;letter-spacing:2px;color:var(--ink)}
.sec-head h2::after{content:"";display:block;width:56px;height:3px;background:linear-gradient(90deg,var(--purple),var(--gold));margin:16px auto 0;border-radius:2px}
.sec-head p{color:var(--mut);margin-top:14px;font-size:14.5px}

/* ---------- 关于预览 ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:60px;align-items:center}
.about-fig{position:relative}
.about-fig img{width:100%;height:400px;object-fit:cover;border-radius:12px;border:1px solid var(--line2)}
.about-fig::before{content:"";position:absolute;inset:18px -18px -18px 18px;border:1px solid var(--line2);border-radius:12px;z-index:-1}
.about-txt i{font-style:normal;color:var(--gold);font-size:13px;letter-spacing:5px}
.about-txt h2{font-size:30px;margin:12px 0 20px;letter-spacing:1px}
.about-txt p{color:var(--mut);margin-bottom:14px}
.about-feats{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:26px 0 32px}
.about-feats div{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--mut)}
.about-feats svg{flex:none}

/* ---------- 产品卡 ---------- */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.pcard{background:var(--panel);border:1px solid var(--line);border-radius:12px;transition:.3s;overflow:hidden}
.pcard:hover{box-shadow:0 18px 42px rgba(109,40,217,.28);transform:translateY(-5px);border-color:var(--line2)}
.pcard figure{overflow:hidden;height:230px;border-bottom:1px solid var(--line)}
.pcard img{width:100%;height:100%;object-fit:cover;transition:.5s;filter:saturate(.92) brightness(.94)}
.pcard:hover img{transform:scale(1.06);filter:none}
.pcard .pbody{padding:22px 24px 26px}
.pcard .ptag{font-size:11.5px;color:var(--gold);letter-spacing:2px}
.pcard h3{font-size:18px;margin:6px 0 8px;color:var(--ink)}
.pcard p{color:var(--mut);font-size:13.5px;margin-bottom:14px}
.pcard .plink{color:var(--gold);font-size:13.5px;letter-spacing:1px}
.pcard .plink::after{content:" →";transition:.2s}
.pcard:hover .plink::after{padding-left:6px}

/* ---------- 优势/服务 ---------- */
.feat{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.fcard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:34px 26px;text-align:center;position:relative;transition:.3s}
.fcard:hover{border-color:var(--line2);transform:translateY(-4px);box-shadow:0 14px 32px rgba(109,40,217,.22)}
.fcard b.num{position:absolute;top:14px;right:18px;font-family:var(--serif);font-size:38px;color:transparent;-webkit-text-stroke:1px var(--line2)}
.fcard .ico{width:62px;height:62px;margin:0 auto 18px;border-radius:50%;background:radial-gradient(circle at 30% 30%,var(--purple),var(--purple-d));display:flex;align-items:center;justify-content:center;border:1px solid var(--line2)}
.fcard h3{font-size:17px;margin-bottom:10px;color:var(--ink)}
.fcard p{color:var(--mut);font-size:13px}

/* ---------- 数据带 ---------- */
.band{background:linear-gradient(100deg,var(--purple) 0%,var(--purple-d) 100%);color:#fff;padding:58px 0}
.band .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.band b{font-family:var(--serif);font-size:40px;color:#fff}
.band b i{font-style:normal;font-size:20px;color:var(--gold-l)}
.band span{display:block;font-size:13px;color:#eadcff;letter-spacing:2px;margin-top:4px}

/* ---------- 新闻 ---------- */
.ngrid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.ncard{background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.3s}
.ncard:hover{box-shadow:0 16px 38px rgba(109,40,217,.24);transform:translateY(-4px);border-color:var(--line2)}
.ncard figure{height:200px;overflow:hidden}
.ncard img{width:100%;height:100%;object-fit:cover;transition:.5s;filter:saturate(.92) brightness(.94)}
.ncard:hover img{transform:scale(1.05);filter:none}
.ncard .nbody{padding:22px 24px 24px}
.ncard time{font-size:12px;color:var(--gold);letter-spacing:2px}
.ncard h3{font-size:16.5px;margin:8px 0 10px;line-height:1.5;color:var(--ink)}
.ncard:hover h3{color:var(--gold)}
.ncard p{color:var(--mut);font-size:13px}

/* ---------- CTA ---------- */
.cta{background:var(--panel);border-top:1px solid var(--line)}
.cta .wrap{padding:64px 24px;text-align:center}
.cta h2{font-size:28px;letter-spacing:2px;margin-bottom:12px;color:var(--ink)}
.cta p{color:var(--mut);margin-bottom:28px}

/* ---------- Footer ---------- */
.ftr{background:#1f0d33;color:var(--mut);padding:64px 0 0;border-top:1px solid var(--line)}
.ftr .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:44px}
.ftr h4{color:var(--ink);font-size:15px;letter-spacing:2px;margin-bottom:18px;font-family:var(--serif)}
.ftr .fabout p{font-size:13px;margin-top:14px;line-height:1.9;color:var(--mut)}
.ftr ul{list-style:none}
.ftr ul li{margin-bottom:10px}
.ftr ul a{font-size:13.5px;color:var(--mut);transition:.2s}
.ftr ul a:hover{color:var(--gold)}
.ftr .fcontact li{font-size:13.5px;margin-bottom:12px;display:flex;gap:8px;color:var(--mut)}
.ftr .fcontact li b{color:var(--gold);font-weight:400}
.copy{border-top:1px solid var(--line);padding:20px 0;text-align:center;font-size:12.5px;color:#8d7aa8}

/* ---------- 内页 page head ---------- */
.phead{background:linear-gradient(100deg,#34205c 0%,var(--purple) 60%,var(--purple-d) 100%);color:#fff;padding:72px 0}
.phead h1{font-size:34px;letter-spacing:3px;color:#fff}
.phead .crumb{margin-top:12px;font-size:13px;color:#e4d6ff}
.phead .crumb a{color:var(--gold-l)}
.phead .crumb a:hover{text-decoration:underline}

/* ---------- 关于页 ---------- */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.vcard{background:var(--panel);border:1px solid var(--line);border-top:3px solid var(--gold);border-radius:12px;padding:36px 30px;transition:.3s}
.vcard:hover{transform:translateY(-4px);box-shadow:0 14px 32px rgba(109,40,217,.22)}
.vcard h3{font-size:18px;margin:14px 0 10px;color:var(--ink)}
.vcard p{color:var(--mut);font-size:13.5px}
.timeline{max-width:760px;margin:0 auto;position:relative;padding-left:36px}
.timeline::before{content:"";position:absolute;left:8px;top:6px;bottom:6px;width:1px;background:linear-gradient(var(--purple),var(--gold))}
.tl-item{position:relative;padding-bottom:36px}
.tl-item::before{content:"";position:absolute;left:-33px;top:6px;width:11px;height:11px;border-radius:50%;background:var(--purple);border:2px solid var(--gold)}
.tl-item b{font-family:var(--serif);color:var(--gold);font-size:19px;letter-spacing:1px}
.tl-item h3{font-size:16px;margin:6px 0;color:var(--ink)}
.tl-item p{color:var(--mut);font-size:13.5px}

/* ---------- 产品页筛选 ---------- */
.pfilter{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-bottom:44px}
.pfilter button{border:1px solid var(--line);background:var(--panel);color:var(--mut);padding:9px 26px;font-size:14px;letter-spacing:1px;cursor:pointer;transition:.25s;font-family:var(--sans);border-radius:999px}
.pfilter button:hover{border-color:var(--line2);color:var(--ink)}
.pfilter button.on{background:var(--purple);border-color:var(--purple);color:#fff}

/* ---------- 新闻页 ---------- */
.nfeat{display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:12px;margin-bottom:44px;overflow:hidden}
.nfeat figure{height:340px;overflow:hidden}
.nfeat img{width:100%;height:100%;object-fit:cover;filter:saturate(.92) brightness(.92)}
.nfeat .nfbody{padding:36px 40px 36px 8px}
.nfeat time{color:var(--gold);font-size:12.5px;letter-spacing:2px}
.nfeat h2{font-size:24px;margin:10px 0 14px;line-height:1.5;color:var(--ink)}
.nfeat p{color:var(--mut);font-size:14px;margin-bottom:20px}

/* ---------- 联系页 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:40px;align-items:start}
.cinfo .icard{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px 26px;margin-bottom:16px;display:flex;gap:16px;align-items:flex-start;transition:.25s}
.cinfo .icard:hover{border-color:var(--line2)}
.cinfo .icard .ic{width:46px;height:46px;flex:none;border-radius:50%;background:radial-gradient(circle at 30% 30%,var(--purple),var(--purple-d));display:flex;align-items:center;justify-content:center;border:1px solid var(--line2)}
.cinfo .icard b{display:block;font-size:15px;margin-bottom:4px;color:var(--ink)}
.cinfo .icard span{color:var(--mut);font-size:13.5px;line-height:1.6}
.cform{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:38px 40px}
.cform h3{font-size:20px;margin-bottom:6px;color:var(--ink)}
.cform>p{color:var(--mut);font-size:13.5px;margin-bottom:24px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cform label{display:block;margin-bottom:16px;font-size:13.5px;color:var(--mut)}
.cform label b{color:var(--gold)}
.cform input,.cform textarea{width:100%;margin-top:7px;border:1px solid var(--line);background:var(--bg2);padding:11px 14px;font-size:14px;font-family:var(--sans);color:var(--ink);outline:none;transition:.2s;border-radius:8px}
.cform input:focus,.cform textarea:focus{border-color:var(--purple);background:var(--bg)}
.cform textarea{resize:vertical;min-height:120px}
.form-note{display:none;margin-top:14px;padding:12px 16px;background:rgba(109,40,217,.18);border:1px solid var(--line2);color:var(--gold-l);font-size:13.5px;border-radius:8px}
.map-ph{margin-top:56px;position:relative;overflow:hidden;border:1px solid var(--line);border-radius:12px}
.map-ph img{width:100%;height:300px;object-fit:cover;filter:saturate(.35) brightness(.7)}
.map-ph .map-tag{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:rgba(42,17,69,.92);border:1px solid var(--line2);border-radius:12px;padding:14px 30px;text-align:center}
.map-ph .map-tag b{color:var(--gold);font-family:var(--serif);letter-spacing:2px}
.map-ph .map-tag span{display:block;font-size:12.5px;color:var(--mut);margin-top:4px}

/* ---------- 响应式 ---------- */
@media(max-width:960px){
  .nav{display:none;position:absolute;top:78px;left:0;right:0;background:var(--bg2);flex-direction:column;padding:12px 24px;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav a{border-bottom:none;border-radius:0;padding:12px 4px}
  .burger{display:block}
  .hero .wrap{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:34px}
  .hero-fig img{height:320px}
  .about-grid,.contact-grid,.nfeat{grid-template-columns:1fr}
  .nfeat .nfbody{padding:28px 30px}
  .pgrid,.ngrid,.values{grid-template-columns:1fr 1fr}
  .feat{grid-template-columns:1fr 1fr}
  .band .wrap{grid-template-columns:1fr 1fr;gap:32px}
  .ftr .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .pgrid,.ngrid,.values,.feat,.frow,.about-feats{grid-template-columns:1fr}
  .hero h1{font-size:29px}
  .hero-nums{flex-wrap:wrap;gap:24px}
  .band .wrap{grid-template-columns:1fr 1fr}
  .sec{padding:60px 0}
  .cform{padding:28px 22px}
  .hero-medal{left:0}
}

/* ===== CMS 共享：列表 / 详情 / 分页 / 表单 ===== */
.cms-page{padding:72px 0;}
.cms-page .container{max-width:1200px;margin:0 auto;padding:0 20px;}
.cms-page .cms-title{font-size:34px;font-weight:800;text-align:center;margin-bottom:8px;}
.cms-page .cms-subtitle{text-align:center;color:#888;margin-bottom:36px;}
.cms-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:26px;}
.cms-card{display:block;background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 8px 26px rgba(0,0,0,.07);transition:.25s;text-decoration:none;color:inherit;}
.cms-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(0,0,0,.12);}
.cms-card img{width:100%;height:200px;object-fit:cover;display:block;}
.cms-card h3{margin:0;padding:18px 18px 4px;font-size:18px;}
.cms-card p{padding:0 18px 18px;color:#777;font-size:14px;margin:0;}
.cms-detail{max-width:860px;margin:0 auto;padding:0 20px;}
.cms-detail img{max-width:100%;border-radius:14px;margin:18px 0;}
.cms-detail h1{font-size:34px;margin:10px 0 6px;}
.cms-detail .lead{color:#888;font-size:16px;}
.cms-content{line-height:1.9;color:#444;margin-top:18px;}
.cms-content img{max-width:100%;}
.cms-back{display:inline-block;margin:8px 0 18px;color:var(--c-primary,#e11d2e);text-decoration:none;font-weight:600;}
.cms-pager{margin:34px 0;text-align:center;}
.cms-pager a,.cms-pager span{padding:8px 14px;margin:0 3px;border-radius:8px;background:#fff;color:#444;text-decoration:none;box-shadow:0 2px 8px rgba(0,0,0,.06);}
.cms-pager .active{background:var(--c-primary,#e11d2e);color:#fff;}
.contact-form{max-width:640px;margin:18px auto 0;display:grid;gap:14px;}
.contact-form input,.contact-form textarea,.contact-form select{
  width:100%;padding:12px 14px;border:1px solid #e3e3e3;border-radius:10px;font-size:15px;font-family:inherit;}
.contact-form textarea{min-height:120px;resize:vertical;}
.btn-primary{background:var(--c-primary,#e11d2e);color:#fff;padding:12px 22px;border-radius:10px;font-weight:700;border:none;cursor:pointer;}
.form-alert{padding:12px 14px;border-radius:10px;margin-bottom:12px;font-size:14px;}
.form-alert-ok{background:#eafaf0;color:#1c7a43;}
.form-alert-err{background:#fdecea;color:#b42318;}
.form-alert-err ul{margin:6px 0 0;padding-left:18px;}
.ve-editable-bg{cursor:pointer;}