/* 晋中站点 - 主题色 #005f73 */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:#2c3e50;line-height:1.7;background:#fafbfc;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:color .25s}
img{max-width:100%;display:block}
ul,ol{list-style:none}
.container{width:1200px;max-width:96%;margin:0 auto}

/* topbar */
.topbar{background:#005f73;color:rgba(255,255,255,.85);font-size:13px;padding:8px 0}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.topbar a{color:#fff;margin-left:10px}
.topbar a:hover{color:#94d2bd}

/* hero */
.hero{position:relative;background:linear-gradient(135deg,#005f73 0%,#0a9396 100%);color:#fff;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 20% 30%,rgba(255,255,255,.18),transparent 50%),radial-gradient(circle at 80% 70%,rgba(255,255,255,.12),transparent 50%);z-index:-2}
.hero::after{content:"";position:absolute;left:-10%;right:-10%;bottom:-2px;height:200px;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'><path fill='%23ffffff' fill-opacity='0.1' d='M0,224L60,213.3C120,203,240,181,360,176C480,171,600,181,720,186.7C840,192,960,192,1080,170.7C1200,149,1320,107,1380,85.3L1440,64L1440,320L0,320Z'/></svg>") no-repeat bottom center / cover;z-index:-1;animation:wave 14s linear infinite}
@keyframes wave{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

.nav{position:relative;z-index:5;padding:18px 0 6px}
.nav .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.logo{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:1px}
.logo .mark{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,#94d2bd,#005f73);display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;font-weight:800;box-shadow:0 6px 18px rgba(0,0,0,.25);border:2px solid rgba(255,255,255,.4)}
.logo .name{font-size:22px;line-height:1.1}
.logo .name small{display:block;font-size:11px;font-weight:400;color:rgba(255,255,255,.7);letter-spacing:2px;margin-top:2px}
.logo .sep{color:#94d2bd;font-weight:400;margin:0 6px}
.logo .sub{color:#94d2bd;font-size:18px;font-weight:600}

.nav-list{display:flex;gap:4px;flex-wrap:wrap}
.nav-list a{display:block;padding:9px 16px;color:#eaf2fb;font-size:15px;font-weight:500;position:relative;border-radius:6px;transition:all .3s}
.nav-list a:hover,.nav-list a.active{background:rgba(255,255,255,.14);color:#fff}
.nav-list a.active::after{content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);width:24px;height:3px;border-radius:2px;background:#94d2bd}

.banner{padding:60px 0 100px;position:relative;z-index:2}
.banner h1{font-size:38px;font-weight:800;line-height:1.25;max-width:820px;text-shadow:0 2px 12px rgba(0,0,0,.25)}
.banner h1 em{font-style:normal;color:#94d2bd}
.banner .sub-h{margin-top:18px;font-size:16px;color:rgba(255,255,255,.85);max-width:780px;line-height:1.8}
.banner .tags{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.banner .tags span{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);padding:6px 14px;border-radius:30px;font-size:13px;backdrop-filter:blur(6px)}
.banner .cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:30px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s;border:none}
.btn-primary{background:#94d2bd;color:#fff;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.24)}

/* sections */
.section{padding:60px 0}
.section h2.sec-title{text-align:center;font-size:30px;font-weight:800;color:#005f73;position:relative;padding-bottom:16px;margin-bottom:14px}
.section h2.sec-title::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:60px;height:4px;border-radius:2px;background:linear-gradient(90deg,#94d2bd,#005f73)}
.section .sec-sub{text-align:center;color:#6b7a90;font-size:15px;max-width:760px;margin:0 auto 40px}

.advantages{background:#fff}
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.adv-card{text-align:center;padding:32px 20px;border-radius:12px;background:#fafbfc;transition:all .35s;border:1px solid #eef1f5}
.adv-card:hover{background:#fff;transform:translateY(-6px);box-shadow:0 14px 30px rgba(0,0,0,.08);border-color:#94d2bd}
.adv-card .ico{width:60px;height:60px;margin:0 auto 16px;border-radius:50%;background:linear-gradient(135deg,#94d2bd,#005f73);display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px;font-weight:800;box-shadow:0 8px 18px rgba(0,0,0,.15)}
.adv-card h3{font-size:17px;color:#005f73;margin-bottom:8px}
.adv-card p{font-size:13px;color:#6b7a90}

.products{background:#fafbfc}
.prod-tabs{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-bottom:32px}
.prod-tabs .tab{padding:7px 18px;border-radius:30px;cursor:pointer;background:#fff;color:#005f73;font-size:13px;font-weight:500;border:1px solid #d6e4f3;transition:all .25s}
.prod-tabs .tab:hover,.prod-tabs .tab.active{background:#005f73;color:#fff;border-color:transparent}
.prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.prod-card{background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 4px 14px rgba(0,0,0,.05);transition:all .3s;cursor:pointer;display:flex;flex-direction:column}
.prod-card:hover{transform:translateY(-4px);box-shadow:0 16px 30px rgba(0,0,0,.12)}
.prod-card .img-wrap{width:100%;height:170px;overflow:hidden;background:#eef1f5}
.prod-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.prod-card:hover .img-wrap img{transform:scale(1.06)}
.prod-card .info{padding:12px 14px 16px;flex:1}
.prod-card .info h4{font-size:14px;color:#005f73;line-height:1.5;min-height:42px}
.prod-card .info p{font-size:12.5px;color:#7d8a9e;margin-top:6px;line-height:1.55}
.prod-card .info .more{display:inline-block;margin-top:8px;color:#94d2bd;font-size:13px;font-weight:600}
.prod-card .info .more::after{content:" →"}
.prod-group{display:none}
.prod-group.active{display:grid}

.applications{background:#fff}
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.app-card{position:relative;height:170px;border-radius:12px;overflow:hidden;cursor:pointer}
.app-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.app-card:hover img{transform:scale(1.08)}
.app-card .mask{position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(0,0,0,.7));display:flex;align-items:flex-end;padding:18px;color:#fff}
.app-card .mask h4{font-size:17px}
.app-card .mask p{font-size:12.5px;opacity:.85;margin-top:3px}

.about{background:linear-gradient(135deg,#005f73 0%,#94d2bd 120%);color:#fff;position:relative;overflow:hidden}
.about::before{content:"";position:absolute;inset:0;background:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 80 80'><circle cx='40' cy='40' r='1' fill='%23ffffff' opacity='0.1'/></svg>") repeat;z-index:0}
.about .container{position:relative;z-index:1}
.about h2.sec-title{color:#fff}
.about h2.sec-title::after{background:linear-gradient(90deg,#fff,#94d2bd)}
.about .sec-sub{color:rgba(255,255,255,.85)}
.about-content{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.about-text p{font-size:14.5px;color:rgba(255,255,255,.92);margin-bottom:12px;line-height:1.85}
.about-text .stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}
.about-text .stat{text-align:center;padding:16px 10px;background:rgba(255,255,255,.14);border-radius:8px;border:1px solid rgba(255,255,255,.2)}
.about-text .stat .num{font-size:26px;font-weight:800;color:#fff}
.about-text .stat .lbl{font-size:12.5px;color:rgba(255,255,255,.85);margin-top:4px}
.about-img{position:relative;border-radius:14px;overflow:hidden;box-shadow:0 18px 40px rgba(0,0,0,.3)}
.about-img img{width:100%;height:360px;object-fit:cover}

.process{background:#fafbfc}
.proc-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.proc-step{text-align:center;padding:24px 12px;background:#fff;border-radius:10px;position:relative;transition:all .3s}
.proc-step:hover{transform:translateY(-4px);box-shadow:0 14px 28px rgba(0,0,0,.08)}
.proc-step .n{width:42px;height:42px;line-height:42px;margin:0 auto 10px;border-radius:50%;background:linear-gradient(135deg,#94d2bd,#005f73);color:#fff;font-weight:800;font-size:17px}
.proc-step h4{font-size:14.5px;color:#005f73;margin-bottom:5px}
.proc-step p{font-size:12px;color:#7d8a9e}
.proc-step:not(:last-child)::after{content:"→";position:absolute;right:-12px;top:50%;transform:translateY(-50%);color:#94d2bd;font-size:18px;font-weight:800}

.qual{background:#fff}
.qual-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.qual-card{background:#fafbfc;border-radius:10px;padding:14px;text-align:center}
.qual-card img{width:100%;height:180px;object-fit:cover;border-radius:6px}
.qual-card h4{font-size:13.5px;color:#005f73;margin-top:10px}

.faq{background:#fafbfc}
.faq-list{max-width:900px;margin:0 auto}
.faq-item{background:#fff;border-radius:10px;margin-bottom:12px;box-shadow:0 4px 12px rgba(0,0,0,.05);overflow:hidden;transition:all .3s}
.faq-item:hover{box-shadow:0 10px 24px rgba(0,0,0,.1)}
.faq-q{padding:16px 22px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:15.5px;font-weight:600;color:#005f73}
.faq-q .q-no{color:#94d2bd;margin-right:8px}
.faq-q .arrow{transition:transform .3s;color:#94d2bd;font-size:16px}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 22px;color:#4a5a72;font-size:13.5px;line-height:1.85}
.faq-item.open .faq-a{max-height:500px;padding:0 22px 18px}

.contact{background:#fff}
.contact-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:36px}
.contact-info{background:linear-gradient(135deg,#005f73 0%,#0a9396 100%);color:#fff;border-radius:14px;padding:36px;position:relative;overflow:hidden}
.contact-info::before{content:"";position:absolute;right:-40px;bottom:-40px;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.18),transparent 70%)}
.contact-info h3{font-size:22px;margin-bottom:20px;position:relative}
.contact-info ul li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.2);position:relative}
.contact-info ul li:last-child{border-bottom:none}
.contact-info .li-ico{flex:0 0 34px;height:34px;border-radius:50%;background:rgba(255,255,255,.18);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800}
.contact-info .li-txt small{display:block;color:rgba(255,255,255,.7);font-size:11.5px}
.contact-info .li-txt span{font-size:14.5px;font-weight:600}
.contact-info .wx-row{display:flex;gap:16px;margin-top:20px;align-items:center;position:relative}
.contact-info .wx-row img{width:104px;height:104px;border-radius:6px;border:2px solid #94d2bd}
.contact-info .wx-row p{color:rgba(255,255,255,.9);font-size:13px}

.contact-form{background:#fafbfc;border-radius:14px;padding:36px}
.contact-form h3{font-size:20px;color:#005f73;margin-bottom:16px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:11px 14px;border:1px solid #d6e4f3;border-radius:6px;background:#fff;font-size:14px;font-family:inherit;color:#2c3e50;transition:border-color .25s}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{outline:none;border-color:#005f73}
.form-row textarea{min-height:100px;resize:vertical}
.form-row.full{grid-template-columns:1fr}
.form-submit{width:100%;padding:13px;background:linear-gradient(135deg,#005f73,#94d2bd);color:#fff;border:none;border-radius:6px;font-size:15px;font-weight:600;cursor:pointer;transition:all .3s}
.form-submit:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(0,0,0,.15)}

.flinks{background:#fff;padding:36px 0;border-top:1px solid #eef1f5}
.flinks h3{font-size:17px;color:#005f73;margin-bottom:14px}
.flinks h3 span{font-size:12.5px;color:#6b7a90;font-weight:400;margin-left:6px}
.flinks-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
.flinks-grid a{display:block;padding:8px 12px;background:#fafbfc;border-radius:6px;font-size:13px;color:#4a5a72;text-align:center;transition:all .25s}
.flinks-grid a:hover{background:#005f73;color:#fff}

footer{background:#1a1f2e;color:rgba(255,255,255,.75);padding:28px 0;text-align:center;font-size:13px;line-height:1.9}
footer a{color:rgba(255,255,255,.75)}
footer a:hover{color:#94d2bd}
footer .copy-line{margin-bottom:6px}

.float-tools{position:fixed;right:18px;bottom:80px;z-index:99;display:flex;flex-direction:column;gap:8px}
.float-tools a{width:50px;height:50px;border-radius:50%;background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.15);display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;color:#005f73;transition:all .3s}
.float-tools a:hover{background:#005f73;color:#fff;transform:translateX(-3px)}
.float-tools a .ic{font-size:18px;font-weight:800;margin-bottom:1px}
.float-tools a.top{background:#005f73;color:#fff}

.to-top{position:fixed;right:18px;bottom:18px;width:44px;height:44px;border-radius:50%;background:#94d2bd;color:#fff;display:none;align-items:center;justify-content:center;cursor:pointer;z-index:99;font-weight:800;box-shadow:0 6px 16px rgba(0,0,0,.2)}

.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);display:none;align-items:center;justify-content:center;z-index:9999}
.lightbox img{max-width:90%;max-height:90%;border-radius:8px}
.lightbox.active{display:flex;cursor:zoom-out}

@media (max-width:1024px){
    .adv-grid,.prod-grid,.qual-grid{grid-template-columns:repeat(2,1fr)}
    .proc-grid{grid-template-columns:repeat(3,1fr)}
    .proc-step::after{display:none}
    .app-grid,.about-content,.contact-grid{grid-template-columns:1fr}
    .flinks-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:640px){
    .banner h1{font-size:24px}
    .section h2.sec-title{font-size:22px}
    .adv-grid,.prod-grid,.qual-grid,.flinks-grid{grid-template-columns:1fr 1fr}
    .proc-grid{grid-template-columns:1fr 1fr}
    .form-row{grid-template-columns:1fr}
    .about-text .stats{grid-template-columns:1fr 1fr}
}