/* 中宝能源设备厂官网 - 商务蓝灰办公风格 */
:root{
  --navy:#1E3A5F; --navy-deep:#16293F; --navy-mid:#2B4C73;
  --blue:#2F6FB0; --blue-bg:#DDE8F3; --blue-light:#E4ECF5;
  --orange:#E8A33D; --orange-deep:#C98A28;
  --bg:#F4F6F9; --bg-alt:#EEF2F7; --white:#FFFFFF;
  --ink:#16293F; --ink-2:#3E5266; --ink-3:#56687C; --ink-4:#6B7F94;
  --line:#E3E8EF; --footer:#152A42; --footer-txt:#8FA7BE;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:15px}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1248px;margin:0 auto;padding:0 24px}

/* ===== 导航 ===== */
.nav{background:#fff;height:84px;display:flex;align-items:center}
.nav .container{display:flex;align-items:center;justify-content:space-between;width:100%}
.brand{display:flex;align-items:center;gap:12px}
.brand svg{width:46px;height:46px}
.brand-name{font-size:19px;font-weight:700;color:var(--ink)}
.brand-sub{font-size:11px;color:var(--ink-4);margin-top:2px}
.nav-links{display:flex;gap:34px}
.nav-links a{font-size:15px;color:var(--ink-2);transition:color .2s}
.nav-links a:hover{color:var(--blue)}
.nav-links a.active{color:var(--blue);font-weight:700}
.nav-phone{display:inline-flex;align-items:center;gap:8px;background:var(--blue);color:#fff;font-weight:700;font-size:15px;height:42px;padding:0 20px;border-radius:21px;transition:background .2s}
.nav-phone:hover{background:var(--navy-mid)}
@media(max-width:960px){.nav-links{display:none}}

/* ===== 通用 ===== */
.section{padding:80px 0}
.section.alt{background:var(--bg-alt)}
.section.white{background:#fff}
.kicker{font-size:12.5px;font-weight:700;color:var(--blue);letter-spacing:2px;margin-bottom:10px}
.h2{font-size:34px;font-weight:700;color:var(--ink);line-height:1.4}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:36px;flex-wrap:wrap;gap:16px}
.sec-head p{font-size:14px;color:var(--ink-4)}
.more-link{font-size:14px;font-weight:700;color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:48px;padding:0 28px;border-radius:6px;font-size:15px;font-weight:700;cursor:pointer;transition:all .2s;border:none}
.btn-primary{background:var(--orange);color:var(--navy-deep)}
.btn-primary:hover{background:var(--orange-deep)}
.btn-ghost{background:var(--navy-mid);color:var(--blue-light);border:1px solid #8CA6C0}
.btn-ghost:hover{background:var(--blue)}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--navy)}

/* ===== 页头(内页) ===== */
.page-hero{background:var(--navy);padding:64px 0}
.page-hero .kicker{color:var(--orange)}
.page-hero h1{font-size:40px;font-weight:700;color:#fff;line-height:1.35}
.page-hero p{font-size:15px;color:#B8C8DC;margin-top:14px;max-width:640px;line-height:1.8}

/* ===== Hero ===== */
.hero{background:var(--navy);padding:72px 0}
.hero .container{display:flex;gap:56px;align-items:center}
.hero-left{flex:1;min-width:0}
.badge{display:inline-flex;align-items:center;gap:8px;background:var(--navy-mid);color:var(--orange);font-size:12.5px;font-weight:500;height:34px;padding:0 14px;border-radius:17px;margin-bottom:22px}
.hero h1{font-size:50px;font-weight:700;color:#fff;line-height:1.32}
.hero-desc{font-size:16px;color:#B8C8DC;line-height:1.8;margin:22px 0 28px}
.cta-row{display:flex;gap:14px;margin-bottom:40px;flex-wrap:wrap}
.metrics{display:flex}
.metric{padding:0 26px}
.metric:first-child{padding-left:0}
.metric+.metric{border-left:1px solid #7A94B0}
.metric b{display:block;font-size:24px;font-weight:700;color:var(--orange)}
.metric span{font-size:11.5px;color:#93A9C2}
.hero-right{width:500px;flex-shrink:0;display:flex;flex-direction:column;gap:12px}
.hero-img{width:100%;height:330px;border-radius:10px;object-fit:cover;background:#3A5878;display:flex;align-items:center;justify-content:center;color:#9DB6D2;font-size:15px}
.hero-sub{display:flex;gap:12px;height:130px}
.hero-sub .hero-img{height:100%;flex:1;border-radius:8px}
@media(max-width:1024px){.hero .container{flex-direction:column}.hero-right{width:100%}.hero h1{font-size:36px}}

/* ===== 业务三块 ===== */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.biz-card{background:#fff;border-radius:12px;overflow:hidden;transition:transform .2s,box-shadow .2s}
.biz-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(22,41,63,.10)}
.biz-card .ph{height:210px;background:#E7ECF2;display:flex;align-items:center;justify-content:center;color:#8B9DB2;font-size:14px}
.biz-card-body{padding:26px}
.biz-card-body h3{font-size:19px;font-weight:700;margin-bottom:10px}
.biz-card-body p{font-size:13.5px;color:var(--ink-3);line-height:1.7}
@media(max-width:960px){.cards-3{grid-template-columns:1fr}}

/* ===== 产品 ===== */
.prod-row{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.prod-card{background:var(--bg);border-radius:12px;display:flex;overflow:hidden}
.prod-card .ph{width:210px;flex-shrink:0;background:#E7ECF2;display:flex;align-items:center;justify-content:center;color:#8B9DB2;font-size:13px;text-align:center;padding:10px}
.prod-card-body{padding:28px;display:flex;flex-direction:column;justify-content:center;gap:12px}
.prod-tag{font-size:12px;font-weight:700;color:var(--blue)}
.prod-card-body h3{font-size:22px;font-weight:700}
.prod-card-body p{font-size:13.5px;color:var(--ink-3);line-height:1.7}
@media(max-width:1200px){.prod-row{grid-template-columns:1fr}}

/* ===== 选型引导行 ===== */
.pick-row{display:flex;align-items:center;gap:28px;padding:24px 28px;border-radius:10px;background:#fff;margin-bottom:2px}
.pick-row:nth-child(even){background:#F7F9FB}
.pick-scene{display:flex;align-items:center;gap:14px;width:300px;flex-shrink:0}
.pick-scene svg{width:38px;height:38px;flex-shrink:0}
.pick-scene b{font-size:17px}
.pick-arrow{color:#B4C0CE;font-size:20px;flex-shrink:0}
.pick-res{margin-left:auto;display:flex;align-items:center;gap:12px}
.pick-pill{background:var(--blue);color:#fff;font-size:13.5px;font-weight:700;height:34px;display:inline-flex;align-items:center;padding:0 16px;border-radius:17px;white-space:nowrap}
.pick-res span{font-size:13px;color:var(--ink-4)}
@media(max-width:900px){.pick-row{flex-wrap:wrap}.pick-res{margin-left:0}}

/* ===== 优势 ===== */
.adv{display:flex;gap:56px;align-items:center}
.adv-left{width:420px;flex-shrink:0}
.adv-left .h2{margin-bottom:20px}
.adv-left>p{font-size:14.5px;color:var(--ink-3);line-height:1.8;margin-bottom:20px}
.adv-img{width:100%;height:200px;border-radius:10px;object-fit:cover;background:#E7ECF2;display:flex;align-items:center;justify-content:center;color:#8B9DB2}
.adv-list{flex:1;display:flex;flex-direction:column;gap:16px}
.adv-item{background:var(--bg);border-radius:10px;padding:24px 26px}
.adv-item .num{font-size:13px;font-weight:700;color:var(--blue)}
.adv-item h4{font-size:18px;font-weight:700;margin:6px 0}
.adv-item p{font-size:13.5px;color:var(--ink-3);line-height:1.7}
@media(max-width:1024px){.adv{flex-direction:column}.adv-left{width:100%}}

/* ===== FAQ ===== */
.faq-item{background:#fff;border-radius:10px;padding:26px 30px;margin-bottom:14px}
.faq-item h4{font-size:17px;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq-item h4::after{content:"+";width:24px;height:24px;flex-shrink:0;border-radius:50%;background:var(--blue-bg);color:var(--blue);display:inline-flex;align-items:center;justify-content:center;font-weight:400;font-size:16px}
.faq-item p{font-size:14px;color:var(--ink-3);line-height:1.8;margin-top:12px}

/* ===== CTA ===== */
.cta{background:var(--navy);padding:64px 0}
.cta .container{display:flex;align-items:center;gap:40px}
.cta h2{font-size:32px;font-weight:700;color:#fff;margin-bottom:14px}
.cta p{font-size:15px;color:#B8C8DC}
.cta-right{margin-left:auto;display:flex;gap:14px;flex-shrink:0;flex-wrap:wrap}
@media(max-width:900px){.cta .container{flex-direction:column}.cta-right{margin-left:0}}

/* ===== 页脚 ===== */
footer{background:var(--footer);padding:56px 0 32px;color:var(--footer-txt)}
.foot-top{display:flex;gap:56px;padding-bottom:40px;border-bottom:1px solid #24405F;flex-wrap:wrap}
.foot-brand{width:360px}
.foot-brand .brand-name{color:#fff}
.foot-brand p{font-size:13px;line-height:1.8;margin-top:14px}
.foot-col{flex:1;min-width:160px}
.foot-col h5{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.foot-col a,.foot-col span{display:block;font-size:13.5px;color:var(--footer-txt);margin-bottom:10px;transition:color .2s}
.foot-col a:hover{color:#fff}
.foot-bot{display:flex;justify-content:space-between;padding-top:28px;font-size:12.5px;color:#6E8399;flex-wrap:wrap;gap:8px}
.foot-simple{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.beian{color:#8FA7BE;text-decoration:none;transition:color .2s}
.beian:hover{color:#fff;text-decoration:underline}

/* ===== 生产流程/步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.step{background:var(--bg);border-radius:10px;padding:22px}
.step .num{font-size:12.5px;font-weight:700;color:var(--blue)}
.step h4{font-size:17px;font-weight:700;margin:8px 0}
.step p{font-size:12.5px;color:var(--ink-3);line-height:1.7}
@media(max-width:1024px){.steps{grid-template-columns:repeat(2,1fr)}}

/* ===== 关于页 ===== */
.about-body{display:flex;gap:56px}
.about-left{flex:1}
.about-left p{font-size:15px;color:var(--ink-2);line-height:1.85;margin-bottom:24px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.stat{background:#fff;border-radius:10px;padding:22px 24px}
.stat b{display:block;font-size:26px;font-weight:700;color:var(--blue)}
.stat span{font-size:12.5px;color:var(--ink-4)}
.about-right{width:480px;flex-shrink:0;display:flex;flex-direction:column;gap:16px}
.about-right .ph{border-radius:10px;background:#E7ECF2;display:flex;align-items:center;justify-content:center;color:#8B9DB2}
@media(max-width:1024px){.about-body{flex-direction:column}.about-right{width:100%}}

/* ===== 产品详情页 ===== */
.psec{display:flex;gap:48px;align-items:center;padding:64px 0}
.psec.alt{background:var(--bg)}
.psec .ph{width:480px;height:300px;border-radius:12px;flex-shrink:0;background:#E7ECF2;display:flex;align-items:center;justify-content:center;color:#8B9DB2}
.psec-body{flex:1;display:flex;flex-direction:column;gap:14px}
.psec-pill{display:inline-flex;align-self:flex-start;background:var(--blue-bg);color:var(--blue);font-size:12.5px;font-weight:700;height:32px;align-items:center;padding:0 14px;border-radius:16px}
.psec-body h2{font-size:28px;font-weight:700}
.psec-body>p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.specs{display:flex;gap:12px;flex-wrap:wrap}
.spec{border-radius:8px;padding:12px 18px;background:#fff;border:1px solid var(--line)}
.psec.alt .spec{background:#fff}
.spec span{display:block;font-size:11.5px;color:#7C8FA3}
.spec b{font-size:15px}
@media(max-width:1024px){.psec{flex-direction:column}.psec .ph{width:100%}}

/* ===== 选型页 ===== */
.step-head{display:flex;align-items:center;gap:14px;margin-bottom:28px}
.step-num{width:40px;height:40px;border-radius:10px;background:var(--blue);color:#fff;font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.step-num.orange{background:var(--orange);color:var(--navy-deep)}
.step-head h2{font-size:28px;font-weight:700}
.scene-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.scene-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px;display:flex;flex-direction:column;gap:12px}
.scene-card svg{width:40px;height:40px}
.scene-card h4{font-size:18px;font-weight:700}
.scene-card p{font-size:13.5px;color:var(--ink-3);line-height:1.7;flex:1}
.scene-card .pick-pill{align-self:flex-start}
@media(max-width:1100px){.scene-cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.scene-cards{grid-template-columns:1fr}}
.cmp-table{width:100%;border-collapse:collapse;background:var(--bg);border-radius:12px;overflow:hidden}
.cmp-table th{background:var(--navy-deep);color:#fff;font-size:13.5px;text-align:left;padding:16px 24px}
.cmp-table td{padding:16px 24px;font-size:14px;color:var(--ink-2);background:#fff}
.cmp-table tr:nth-child(even) td{background:#F7F9FB}
.cmp-table td:first-child{font-weight:700;color:var(--blue)}
.table-wrap{overflow-x:auto;border-radius:12px}
.trial{background:var(--navy);padding:72px 0}
.trial .container{display:flex;gap:56px;align-items:center}
.trial-left{flex:1}
.trial h2{font-size:28px;font-weight:700;color:#fff;margin-bottom:18px}
.trial p{font-size:15px;color:#B8C8DC;line-height:1.8;margin-bottom:24px}
.trial-img{width:460px;height:260px;border-radius:12px;flex-shrink:0;background:#3A5878;display:flex;align-items:center;justify-content:center;color:#9DB6D2}
@media(max-width:1024px){.trial .container{flex-direction:column}.trial-img{width:100%}}

/* ===== 联系页 ===== */
.contact-body{display:flex;gap:48px;padding:80px 0}
.contact-cards{flex:1;display:flex;flex-direction:column;gap:24px}
.c-card{border-radius:14px;padding:36px;display:flex;flex-direction:column;gap:16px}
.c-card.phone{background:var(--navy)}
.c-card.phone .label{font-size:13.5px;font-weight:700;color:#9DBBD8}
.c-card.phone .big{font-size:40px;font-weight:700;color:#fff;line-height:1.3}
.c-card.phone p{font-size:13.5px;color:#CFE0EE;line-height:1.8}
.c-card.addr{background:#fff;border:1px solid var(--line)}
.c-card.addr .label{font-size:13.5px;font-weight:700;color:var(--ink-4)}
.c-card.addr .big{font-size:30px;font-weight:700;line-height:1.4}
.c-card.addr p{font-size:13.5px;color:var(--ink-3);line-height:1.8}
.c-icon{width:46px;height:46px}
.contact-side{width:460px;flex-shrink:0;display:flex;flex-direction:column;gap:24px}
.contact-side .ph{height:380px;border-radius:14px;background:#E7ECF2;display:flex;align-items:center;justify-content:center;color:#8B9DB2}
.tips{background:#fff;border:1px solid var(--line);border-radius:14px;padding:28px}
.tips h4{font-size:17px;font-weight:700;margin-bottom:12px}
.tips li{font-size:13.5px;color:var(--ink-3);line-height:2;list-style:none}
.tips li::before{content:"· ";color:var(--blue);font-weight:700}
@media(max-width:1024px){.contact-body{flex-direction:column}.contact-side{width:100%}}

/* ===== 页面区块头 ===== */
.block-head{margin-bottom:36px}
.block-head .h2{margin-bottom:8px}
.block-head p{font-size:14px;color:var(--ink-4)}
.block-head.center{text-align:center}
.block-head.center p{margin:0 auto;max-width:600px}
@media(max-width:900px){.psec{padding:44px 0}}

/* ===== 配套设备行 ===== */
.equip-row{display:flex;align-items:center;gap:24px;background:#fff;border-radius:10px;padding:24px 28px;margin-bottom:16px}
.equip-row .eq-ico{width:46px;height:46px;flex-shrink:0;border-radius:10px;background:var(--blue-bg);display:flex;align-items:center;justify-content:center}
.equip-row h4{font-size:18px;font-weight:700}
.equip-row p{font-size:13.5px;color:var(--ink-3);line-height:1.7;flex:1;min-width:0}

/* ===== 表格辅助列 ===== */
.cmp-table td .rec{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--blue)}
.cmp-table th:first-child{color:#fff}

/* ===== FAQ 分类小标题 ===== */
.faq-group{margin-bottom:36px}
.faq-group:last-child{margin-bottom:0}
.faq-group>h3{font-size:19px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.faq-group>h3::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--blue)}

/* ===== 联系页补充 ===== */
.c-phone-link{display:inline-flex;align-items:center;gap:12px;color:#fff}
.c-phone-link:hover .big{color:var(--orange)}
.card-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
@media(max-width:760px){.card-grid-2{grid-template-columns:1fr}}

/* ===== 占位 ===== */
.ph{color:#8B9DB2;font-size:14px}
img.ph,img.hero-img,img.adv-img,img.trial-img{color:transparent;background:#E7ECF2}
img.hero-img{object-fit:cover}