@charset "utf-8";
/* 火山电商 · 方案A 深空商务  —— 模板样式 /template/plan-a/css/style.css */

:root{
  --bg:#0B1220; --bg2:#0E1729; --panel:#121E33; --panel2:#16243C;
  --line:rgba(122,160,220,.14); --line2:rgba(122,160,220,.28);
  --tx:#E8F0FA; --tx2:#9FB0C9; --tx3:#64789A;
  --ac:#4DA3FF; --ac2:#1D6FE0; --glow:rgba(77,163,255,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--tx);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}
a{text-decoration:none;color:inherit;transition:color .2s}
img{display:block;max-width:100%;height:auto}
ul,ol{list-style:none}
h1,h2,h3,h4{font-weight:600;line-height:1.35}
p{line-height:1.8}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px}
.section{position:relative;padding:100px 0}

/* ========== 导航 ========== */
.site-head{position:fixed;top:0;left:0;right:0;z-index:99;transition:.3s;border-bottom:1px solid transparent}
.site-head.solid{background:rgba(11,18,32,.9);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:11px}
.brand img{max-height:38px;width:auto}
.brand .brand-txt b{display:block;font-size:19px;letter-spacing:2px}
.brand .brand-txt span{display:block;font-size:10px;color:var(--tx3);letter-spacing:3px;line-height:1.4}
.menu{display:flex;gap:34px}
.menu>li{position:relative}
.menu>li>a{font-size:14.5px;color:var(--tx2);display:block;padding:26px 0}
.menu>li>a:hover,.menu>li.on>a{color:var(--tx)}
.menu>li>a::after{content:"";position:absolute;left:0;right:0;bottom:22px;height:2px;background:var(--ac);border-radius:2px;opacity:0;transition:.25s}
.menu>li>a:hover::after,.menu>li.on>a::after{opacity:1}
.menu .sub-nav{position:absolute;top:68px;left:50%;transform:translateX(-50%) translateY(8px);min-width:170px;background:var(--panel2);border:1px solid var(--line2);border-radius:10px;padding:8px 0;opacity:0;visibility:hidden;transition:.25s}
.menu li:hover .sub-nav{opacity:1;visibility:visible;transform:translateX(-50%)}
.sub-nav a{display:block;padding:9px 20px;font-size:13.5px;color:var(--tx2)}
.sub-nav a:hover{color:var(--ac);background:var(--glow)}
.nav-right{display:flex;align-items:center;gap:16px}
.tel-btn{display:flex;align-items:center;gap:9px;border:1px solid var(--line2);padding:9px 18px;border-radius:100px;font-size:14px;transition:.25s}
.tel-btn:hover{border-color:var(--ac);color:var(--ac)}
.tel-btn i{width:7px;height:7px;border-radius:50%;background:var(--ac)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line2);border-radius:8px;position:relative;cursor:pointer;background:transparent}
.nav-toggle span{position:absolute;left:12px;right:12px;height:1.5px;background:var(--tx);transition:.3s}
.nav-toggle span:nth-child(1){top:16px}
.nav-toggle span:nth-child(2){top:22px}
.nav-toggle span:nth-child(3){top:28px}
body.nav-open .nav-toggle span:nth-child(1){top:22px;transform:rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){top:22px;transform:rotate(-45deg)}

/* ========== 通用标题 ========== */
.s-head{max-width:660px;margin-bottom:56px}
.s-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{font-size:12px;letter-spacing:4px;color:var(--ac);margin-bottom:14px;display:flex;align-items:center;gap:12px}
.s-head.center .kicker{justify-content:center}
.kicker::before{content:"";width:26px;height:1px;background:var(--ac)}
.s-head.center .kicker::after{content:"";width:26px;height:1px;background:var(--ac)}
.h2-title{font-size:34px;letter-spacing:1px}
.s-desc{color:var(--tx2);margin-top:14px;font-size:15px}

/* ========== 首屏 ========== */
.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;justify-content:center;padding:150px 0 0;overflow:hidden}
.hero-bg{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse 75% 65% at 60% 40%,#000 30%,transparent 75%);opacity:.5}
.hero-orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55}
.hero-orb.o1{width:520px;height:520px;background:#17457E;top:-140px;right:-60px}
.hero-orb.o2{width:380px;height:380px;background:#123B66;bottom:-160px;left:-120px}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--line2);border-radius:100px;padding:7px 17px;font-size:12.5px;color:var(--ac);letter-spacing:2px;margin-bottom:28px}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--ac);box-shadow:0 0 8px var(--ac)}
.hero-h1{font-size:52px;line-height:1.28;letter-spacing:1px}
.hero-h1 em{font-style:normal;background:linear-gradient(100deg,#6FBBFF,#2E7BE8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--tx2);font-size:16.5px;margin:24px 0 40px;max-width:520px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 36px;border-radius:8px;font-size:15px;letter-spacing:1px;transition:.25s}
.btn-main{background:linear-gradient(120deg,#2E7BE8,#4DA3FF);color:#fff;box-shadow:0 8px 28px rgba(46,123,232,.35)}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(46,123,232,.5);color:#fff}
.btn-ghost{border:1px solid var(--line2);color:var(--tx2)}
.btn-ghost:hover{border-color:var(--ac);color:var(--ac)}
/* 右侧数据面板（方案A专属） */
.hero-panel{background:linear-gradient(160deg,rgba(22,36,60,.92),rgba(14,23,41,.9));border:1px solid var(--line2);border-radius:16px;padding:26px;backdrop-filter:blur(8px);box-shadow:0 30px 80px rgba(0,0,0,.45)}
.hp-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.hp-head b{font-size:14px;letter-spacing:1px}
.hp-head span{font-size:11px;color:var(--tx3);border:1px solid var(--line);padding:3px 10px;border-radius:100px}
.hp-kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.hp-kpi div{background:var(--glow);border:1px solid var(--line);border-radius:10px;padding:13px 14px}
.hp-kpi small{color:var(--tx3);font-size:11px;letter-spacing:1px;display:block}
.hp-kpi b{font-size:21px;font-variant-numeric:tabular-nums}
.hp-kpi b em{font-style:normal;color:var(--ac);font-size:13px;margin-left:2px}
.hp-line{background:rgba(11,18,32,.55);border:1px solid var(--line);border-radius:10px;padding:16px}
.hp-line small{color:var(--tx3);font-size:11px;letter-spacing:1px}
.hp-plat{display:flex;gap:9px;margin-top:16px;flex-wrap:wrap}
.hp-plat span{font-size:12px;color:var(--tx2);border:1px solid var(--line2);padding:6px 13px;border-radius:100px}
.hp-plat span.mark{color:var(--ac);border-color:rgba(77,163,255,.5);background:var(--glow)}
/* 首屏数据条（方案A在首屏下方通栏） */
.hero-stat{width:100%;display:grid;grid-template-columns:repeat(4,1fr);margin-top:80px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(18,30,51,.5)}
.hs-item{padding:42px 12px;text-align:center;border-left:1px solid var(--line)}
.hs-item:first-child{border-left:none}
.hs-item b{font-size:42px;font-variant-numeric:tabular-nums}
.hs-item b em{font-style:normal;color:var(--ac);font-size:22px;margin-left:3px}
.hs-item p{color:var(--tx2);font-size:13.5px;letter-spacing:2px;margin-top:4px}

/* ========== 业务卡 ========== */
.biz-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.biz-col{display:flex;flex-direction:column}
.biz-no{font-size:12px;color:var(--ac);letter-spacing:2px;margin-bottom:12px}
.biz-col .biz-card{flex:1;display:flex;flex-direction:column}
.biz-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.3s}
.biz-col:hover .biz-card{transform:translateY(-6px);border-color:rgba(77,163,255,.45);box-shadow:0 24px 50px rgba(0,0,0,.4)}
.biz-card .pic{height:210px;overflow:hidden;position:relative}
.biz-card .pic img{width:100%;height:100%;object-fit:cover;transition:.5s}
.biz-card:hover .pic img{transform:scale(1.06)}
.biz-card .pic::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(11,18,32,.7))}
.biz-card .bd{padding:24px 24px 28px}
.biz-no{font-size:12px;color:var(--ac);letter-spacing:2px;font-variant-numeric:tabular-nums}
.biz-card h3{font-size:20px;margin:9px 0 10px}
.biz-card p{color:var(--tx2);font-size:14px;margin-bottom:16px}
.link-more{font-size:13px;color:var(--ac);letter-spacing:1px}
.link-more:hover{color:#8FC6FF}

/* ========== 关于 ========== */
.about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.about-pic{position:relative}
.about-pic img{border-radius:14px;border:1px solid var(--line2);width:100%}
.about-pic::before{content:"";position:absolute;top:-16px;left:-16px;right:16px;bottom:16px;border:1px solid rgba(77,163,255,.3);border-radius:14px}
.milestone{margin-top:34px;border-left:1px solid var(--line2)}
.milestone li{position:relative;padding:0 0 22px 26px}
.milestone li::before{content:"";position:absolute;left:-4.5px;top:9px;width:8px;height:8px;border-radius:50%;background:var(--bg);border:2px solid var(--ac)}
.milestone b{color:var(--ac);font-size:14px;font-variant-numeric:tabular-nums;margin-right:10px}
.milestone span{color:var(--tx2);font-size:14px}

/* ========== 合作 ========== */
.coop-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.coop-card{border:1px solid var(--line);border-radius:14px;padding:34px 30px;background:linear-gradient(170deg,var(--glow),transparent 60%);transition:.3s}
.coop-card:hover{border-color:rgba(77,163,255,.4);transform:translateY(-4px)}
.coop-card .cp-pic{height:150px;overflow:hidden;border-radius:10px;margin-bottom:20px}
.coop-card .cp-pic img{width:100%;height:100%;object-fit:cover}
.coop-card h3{font-size:19px;margin-bottom:10px}
.coop-card p{color:var(--tx2);font-size:13.5px}
.coop-tag{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}
.coop-tag span{font-size:12.5px;color:var(--tx2);border:1px solid var(--line);background:rgba(11,18,32,.6);padding:5px 12px;border-radius:6px}

/* ========== 新闻 ========== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.3s}
.news-card:hover{transform:translateY(-5px);border-color:var(--line2)}
.news-card .pic{height:180px;overflow:hidden}
.news-card .pic img{width:100%;height:100%;object-fit:cover;transition:.5s}
.news-card:hover .pic img{transform:scale(1.05)}
.news-card .bd{padding:20px 22px 24px}
.news-date{font-size:12px;color:var(--tx3);font-variant-numeric:tabular-nums;letter-spacing:1px}
.news-card h3{font-size:16px;margin-top:8px;line-height:1.6}

/* ========== 留言区 ========== */
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-row.full{grid-template-columns:1fr}
.contact input,.contact textarea{width:100%;background:rgba(11,18,32,.6);border:1px solid var(--line2);border-radius:8px;padding:14px 16px;color:var(--tx);font-size:14px;font-family:inherit;transition:.25s}
.contact textarea{min-height:120px;resize:vertical}
.contact input:focus,.contact textarea:focus{outline:none;border-color:var(--ac);background:rgba(77,163,255,.06)}
.contact input::placeholder,.contact textarea::placeholder{color:var(--tx3)}
.btn-submit{border:none;cursor:pointer;font-family:inherit;font-size:15px}
.form-tip{color:var(--tx3);font-size:12.5px;margin-top:12px}

/* ========== CTA ========== */
.cta{padding:90px 0;text-align:center;background:linear-gradient(140deg,#123561,#0E1729 70%);border-top:1px solid var(--line)}
.cta p{color:var(--tx2);margin:16px 0 34px;font-size:15px}

/* ========== 页脚 ========== */
.site-foot{border-top:1px solid var(--line);padding:56px 0 34px;background:#0A101C}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px;margin-bottom:40px}
.f-grid h4{font-size:14px;letter-spacing:2px;margin-bottom:18px}
.f-grid p,.f-grid a{color:var(--tx2);font-size:13.5px;display:block;margin-bottom:10px}
.f-grid a:hover{color:var(--ac)}
.f-contact li{color:var(--tx2);font-size:13.5px;margin-bottom:10px;display:flex;gap:8px}
.copy{border-top:1px solid var(--line);padding-top:24px;color:var(--tx3);font-size:12.5px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.copy a{color:var(--tx3)}
.copy a:hover{color:var(--ac)}

/* ========== 内页 ========== */
.crumb{padding:130px 0 46px;background:linear-gradient(180deg,var(--panel2),transparent);border-bottom:1px solid var(--line)}
.crumb h1{font-size:32px;letter-spacing:1px}
.crumb .cr-path{color:var(--tx3);font-size:13px;margin-top:10px}
.crumb .cr-path a:hover{color:var(--ac)}
.page-wrap{padding:80px 0 100px}
.list-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.list-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.3s}
.list-card:hover{transform:translateY(-5px);border-color:var(--line2)}
.list-card .pic{height:190px;overflow:hidden}
.list-card .pic img{width:100%;height:100%;object-fit:cover;transition:.5s}
.list-card:hover .pic img{transform:scale(1.05)}
.list-card .bd{padding:20px 22px 24px}
.list-card h3{font-size:16px;margin:8px 0 10px;line-height:1.6}
.list-card .desc{color:var(--tx2);font-size:13.5px}
/* 详情 */
.detail-wrap{display:grid;grid-template-columns:1fr 320px;gap:50px}
.detail-head{border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:26px}
.detail-head h1{font-size:28px;letter-spacing:1px}
.detail-meta{color:var(--tx3);font-size:13px;margin-top:12px;display:flex;gap:22px;flex-wrap:wrap;font-variant-numeric:tabular-nums}
.detail-body{font-size:15.5px;line-height:2}
.detail-body img{max-width:100%;height:auto;border-radius:8px;margin:12px 0}
.detail-body p{margin-bottom:16px}
.detail-nav{margin-top:44px;border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:20px;font-size:14px;color:var(--tx2);flex-wrap:wrap}
.detail-nav a:hover{color:var(--ac)}
.side-box{border:1px solid var(--line);border-radius:14px;padding:26px 24px;margin-bottom:22px;background:var(--panel)}
.side-box h4{font-size:14px;letter-spacing:2px;margin-bottom:16px}
.side-box a,.side-box li{color:var(--tx2);font-size:13.5px;display:block;margin-bottom:11px}
.side-box a:hover{color:var(--ac)}
.side-recent{display:flex;gap:12px;margin-bottom:14px}
.side-recent .pic{width:78px;height:58px;flex:0 0 78px;overflow:hidden;border-radius:6px}
.side-recent .pic img{width:100%;height:100%;object-fit:cover}
.side-recent h5{font-size:13px;font-weight:400;line-height:1.6}
.side-recent time{color:var(--tx3);font-size:11.5px;display:block;margin-top:4px}
/* 分页 */
.pagebar{margin-top:50px;display:flex;justify-content:center}
.pagination{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.pagination a{padding:9px 15px;border:1px solid var(--line2);border-radius:6px;font-size:13.5px;color:var(--tx2)}
.pagination a:hover,.pagination a.active{border-color:var(--ac);color:var(--ac);background:var(--glow)}
.empty-tip{text-align:center;color:var(--tx3);padding:60px 0}

/* ========== 滚动动画 ========== */
.rv{opacity:0;transform:translateY(26px);transition:.7s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}

/* ========== 响应式 ========== */
@media(max-width:1100px){
  .detail-wrap{grid-template-columns:1fr;gap:36px}
  .f-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:960px){
  .wrap{padding:0 22px}
  .menu{position:fixed;top:76px;left:0;right:0;background:rgba(11,18,32,.98);backdrop-filter:blur(10px);flex-direction:column;gap:0;max-height:0;overflow:hidden;transition:.35s;border-bottom:1px solid var(--line)}
  body.nav-open .menu{max-height:70vh;overflow-y:auto}
  .menu>li>a{padding:16px 22px;border-bottom:1px solid var(--line)}
  .menu>li>a::after{display:none}
  .menu .sub-nav{position:static;transform:none;opacity:1;visibility:visible;background:transparent;border:none;border-radius:0;padding:0}
  .sub-nav a{padding:10px 22px 10px 40px}
  .nav-toggle{display:block}
  .tel-btn{display:none}
  .hero-inner,.about-wrap{grid-template-columns:1fr;gap:40px}
  .biz-grid,.coop-grid,.news-grid,.list-grid{grid-template-columns:1fr}
  .hero-stat{grid-template-columns:repeat(2,1fr)}
  .hs-item:nth-child(3){border-left:none}
  .hero-h1{font-size:34px}
  .hero{min-height:auto;padding:130px 0 60px}
  .h2-title{font-size:26px}
  .section{padding:64px 0}
  .form-row{grid-template-columns:1fr}
  .hero-panel{padding:20px}
  .crumb{padding:110px 0 36px}
}