/* ===========================================================
   日照盛佳贸易有限公司 — 站点样式
   纯静态，无外部依赖
   =========================================================== */
:root{
  --navy:#0B2239;
  --navy-2:#12314E;
  --navy-3:#1C415F;
  --gold:#C9A45C;
  --gold-soft:#E6D2A4;
  --ink:#1A2531;
  --muted:#64717F;
  --line:#E4E8ED;
  --paper:#F7F8FA;
  --white:#fff;
  --radius:16px;
  --shadow:0 24px 50px -28px rgba(11,34,57,.45);
  --max:1180px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  overflow-x:hidden;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  color:var(--ink);background:var(--white);line-height:1.75;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{width:min(100% - 48px,var(--max));margin-inline:auto}
.center{text-align:center}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  transition:background .3s ease,box-shadow .3s ease,padding .3s ease;
  padding:18px 0;
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand img{width:42px;height:42px}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-cn{font-size:17px;font-weight:600;letter-spacing:.06em}
.brand-en{font-size:10px;letter-spacing:.22em;text-transform:uppercase;opacity:.62}
.nav{display:flex;align-items:center;gap:34px}
.nav a{
  color:rgba(255,255,255,.82);font-size:15px;letter-spacing:.04em;position:relative;padding:6px 0;
  transition:color .2s;
}
.nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--gold);
  transition:width .25s ease;
}
.nav a:hover,.nav a.is-active{color:#fff}
.nav a:hover::after,.nav a.is-active::after{width:100%}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:999px;
  border:1px solid rgba(255,255,255,.32);color:#fff;font-size:14px;letter-spacing:.05em;
  transition:.25s;
}
.header-cta:hover{background:var(--gold);border-color:var(--gold);color:#13202E}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid rgba(255,255,255,.35);border-radius:12px;
  background:transparent;color:#fff;font-size:20px;cursor:pointer;
}
/* 滚动后的白底状态 */
.site-header.is-solid{background:rgba(255,255,255,.96);box-shadow:0 10px 30px -20px rgba(11,34,57,.5);padding:10px 0}
.site-header.is-solid .brand{color:var(--navy)}
.site-header.is-solid .brand-en{opacity:.55}
.site-header.is-solid .nav a{color:var(--muted)}
.site-header.is-solid .nav a:hover,.site-header.is-solid .nav a.is-active{color:var(--navy)}
.site-header.is-solid .header-cta{border-color:rgba(11,34,57,.18);color:var(--navy)}
.site-header.is-solid .header-cta:hover{background:var(--navy);border-color:var(--navy);color:#fff}
.site-header.is-solid .nav-toggle{border-color:rgba(11,34,57,.2);color:var(--navy)}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;min-height:min(94vh,900px);display:flex;align-items:center;
  background:var(--navy);color:#fff;overflow:hidden;padding:150px 0 90px;
}
.hero-media{position:absolute;inset:0;background:url(../images/hero.jpg) center/cover no-repeat;opacity:.85}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(8,26,44,.94) 0%,rgba(9,29,49,.78) 46%,rgba(9,29,49,.36) 100%),
    radial-gradient(1200px 600px at 78% 18%,rgba(201,164,92,.16),transparent 60%);
}
.hero .wrap{position:relative;z-index:2}
.hero-inner{max-width:760px}
.kicker{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--gold-soft);margin-bottom:26px;
}
.kicker::before{content:"";width:38px;height:1px;background:var(--gold);display:inline-block}
.hero h1{
  font-size:clamp(32px,4.6vw,56px);line-height:1.28;font-weight:600;letter-spacing:.02em;
  margin-bottom:24px;
}
.hero h1 em{font-style:normal;color:var(--gold-soft)}
.hero p.lead{font-size:clamp(15px,1.4vw,18px);color:rgba(255,255,255,.78);max-width:600px;margin-bottom:38px}
.btn-row{display:flex;flex-wrap:wrap;gap:16px}
.btn{
  display:inline-flex;align-items:center;gap:10px;padding:15px 32px;border-radius:999px;
  font-size:15px;letter-spacing:.06em;transition:.28s;border:1px solid transparent;
}
.btn-primary{background:var(--gold);color:#16232F;font-weight:600}
.btn-primary:hover{background:var(--gold-soft);transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.hero-stats{
  position:relative;z-index:2;margin-top:70px;display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.16);padding-top:30px;gap:20px;
}
.stat b{display:block;font-size:clamp(22px,2.4vw,30px);font-weight:600;letter-spacing:.02em}
.stat span{font-size:13px;color:rgba(255,255,255,.6);letter-spacing:.08em}

/* ---------- 区块通用 ---------- */
section{position:relative}
.sec{padding:104px 0}
.sec-paper{background:var(--paper)}
.sec-head{max-width:720px;margin-bottom:56px}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-tag{
  display:inline-block;font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--gold);margin-bottom:16px;
}
.sec-head h2{
  font-size:clamp(26px,3vw,38px);line-height:1.35;font-weight:600;color:var(--navy);
  letter-spacing:.02em;
}
.sec-head p{margin-top:18px;color:var(--muted);font-size:16px}

/* ---------- 关于 ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.about-copy p{color:var(--muted);margin-bottom:18px;font-size:16px}
.about-copy p strong{color:var(--ink);font-weight:600}
.about-media{position:relative}
.about-media img{border-radius:var(--radius);box-shadow:var(--shadow)}
.about-badge{
  position:absolute;left:-22px;bottom:-22px;background:var(--navy);color:#fff;
  padding:20px 26px;border-radius:14px;box-shadow:var(--shadow);
}
.about-badge b{display:block;font-size:24px;color:var(--gold-soft);letter-spacing:.02em}
.about-badge span{font-size:12px;letter-spacing:.14em;opacity:.72}
.facts{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:30px}
.fact{border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:#fff}
.fact dt{font-size:12px;color:var(--muted);letter-spacing:.1em}
.fact dd{font-size:15px;font-weight:600;color:var(--navy);margin-top:4px}

/* ---------- 业务卡片 ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s;
  position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0 auto auto 0;height:3px;width:0;background:var(--gold);
  transition:width .35s ease;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#D6DEE7}
.card:hover::before{width:100%}
.card .ico{width:52px;height:52px;color:var(--gold);margin-bottom:22px}
.card h3{font-size:19px;font-weight:600;color:var(--navy);margin-bottom:12px;letter-spacing:.02em}
.card p{color:var(--muted);font-size:15px}
.card .tags{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px}
.tag{font-size:12px;color:var(--navy-3);background:#EDF2F7;border-radius:999px;padding:5px 12px}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{background:#fff;border-radius:var(--radius);padding:32px 26px;border:1px solid var(--line);position:relative}
.step::before{
  counter-increment:step;content:"0" counter(step);
  font-size:13px;letter-spacing:.16em;color:var(--gold);font-weight:600;
}
.step h4{font-size:17px;color:var(--navy);margin:14px 0 10px;font-weight:600}
.step p{font-size:14px;color:var(--muted)}

/* ---------- 优势 ---------- */
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.why-item{padding:28px 24px;border-radius:var(--radius);background:linear-gradient(180deg,#fff,#FBFCFD);border:1px solid var(--line)}
.why-item .ico{width:38px;height:38px;color:var(--gold);margin-bottom:16px}
.why-item h4{font-size:16px;font-weight:600;color:var(--navy);margin-bottom:8px}
.why-item p{font-size:14px;color:var(--muted)}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--navy) 0%,var(--navy-3) 100%);
  color:#fff;border-radius:22px;padding:56px 60px;display:flex;align-items:center;
  justify-content:space-between;gap:40px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,164,92,.22),transparent 65%);
}
.cta-band h3{font-size:clamp(22px,2.5vw,30px);font-weight:600;letter-spacing:.02em;position:relative}
.cta-band p{color:rgba(255,255,255,.7);margin-top:10px;font-size:15px;position:relative}

/* ---------- 页脚 ---------- */
.site-footer{background:#081B2E;color:rgba(255,255,255,.62);padding:72px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:48px}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;letter-spacing:.06em}
.site-footer a:hover{color:var(--gold-soft)}
.footer-links li{margin-bottom:10px}
.footer-brand .brand{color:#fff;margin-bottom:18px}
.footer-brand p{max-width:340px;line-height:1.9}
.footer-contact li{margin-bottom:10px;display:flex;gap:10px}
.footer-contact span:first-child{color:rgba(255,255,255,.38);flex:0 0 48px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:12px;font-size:13px;color:rgba(255,255,255,.4);
}

/* ---------- 内页头部 ---------- */
.page-hero{
  background:var(--navy);color:#fff;padding:170px 0 90px;position:relative;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;background:url(../images/about.jpg) center/cover no-repeat;opacity:.28;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,26,44,.92),rgba(10,32,54,.62));
}
.page-hero .wrap{position:relative;z-index:2}
.page-hero .crumb{font-size:13px;letter-spacing:.12em;color:rgba(255,255,255,.5);margin-bottom:18px}
.page-hero .crumb a:hover{color:var(--gold-soft)}
.page-hero h1{font-size:clamp(28px,3.6vw,44px);font-weight:600;letter-spacing:.02em;line-height:1.3}
.page-hero p{margin-top:16px;max-width:640px;color:rgba(255,255,255,.72);font-size:16px}

/* ---------- 富文本块 ---------- */
.prose p{color:var(--muted);margin-bottom:18px;font-size:16px}
.prose p strong{color:var(--ink)}
.prose h3{color:var(--navy);font-size:20px;font-weight:600;margin:36px 0 14px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.quote{
  border-left:3px solid var(--gold);padding:6px 0 6px 24px;color:var(--navy-3);
  font-size:18px;line-height:1.8;margin:28px 0;
}

/* ---------- 列表 ---------- */
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 32px;margin-top:8px}
.checklist li{display:flex;gap:12px;align-items:flex-start;color:var(--muted);font-size:15px}
.checklist li::before{
  content:"";flex:0 0 18px;height:18px;margin-top:6px;border-radius:50%;
  background:var(--gold) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2316232F' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E") center/11px no-repeat;
}

/* ---------- 业务详情条 ---------- */
.biz-block{
  display:grid;grid-template-columns:180px 1fr;gap:40px;padding:38px 0;border-bottom:1px solid var(--line);
}
.biz-block:last-child{border-bottom:0}
.biz-no{font-size:13px;letter-spacing:.18em;color:var(--gold);font-weight:600}
.biz-block h3{font-size:21px;color:var(--navy);font-weight:600;margin:8px 0 12px}
.biz-block p{color:var(--muted);font-size:15px;margin-bottom:10px}
.biz-items{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ---------- 联系方式 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact-card{border:1px solid var(--line);border-radius:var(--radius);padding:38px;background:#fff;box-shadow:var(--shadow)}
.contact-item{display:flex;gap:18px;padding:20px 0;border-bottom:1px dashed var(--line)}
.contact-item:last-child{border-bottom:0}
.contact-item .ico{width:34px;height:34px;color:var(--gold);flex:0 0 34px}
.contact-item dt{font-size:12px;letter-spacing:.14em;color:var(--muted);text-transform:uppercase}
.contact-item dd{font-size:16px;color:var(--navy);font-weight:500;margin-top:2px;line-height:1.7}
.note{font-size:13px;color:#8A96A3;margin-top:18px}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .about-grid,.split,.contact-grid{grid-template-columns:1fr;gap:40px}
  .cards,.steps,.why{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .about-badge{left:auto;right:18px;bottom:18px}
  .biz-block{grid-template-columns:1fr;gap:8px}
}
@media (max-width:720px){
  .nav,.header-cta{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .site-header.nav-open{background:rgba(8,26,44,.97)}
  .site-header.nav-open .nav{
    display:flex;flex-direction:column;align-items:flex-start;gap:0;
    position:absolute;left:0;right:0;top:100%;padding:14px 24px 24px;
  }
  .site-header.nav-open .nav a{color:rgba(255,255,255,.85);padding:14px 0;width:100%;border-bottom:1px solid rgba(255,255,255,.08)}
  .site-header.nav-open .brand,.site-header.nav-open .nav-toggle{color:#fff}
  .hero{min-height:auto;padding:130px 0 70px}
  .kicker{font-size:10.5px;letter-spacing:.10em;flex-wrap:wrap;max-width:100%}
  .hero-inner{min-width:0}
  .dash{min-width:0}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:22px}
  .sec{padding:72px 0}
  .cards,.steps,.why,.checklist{grid-template-columns:1fr}
  .cta-band{padding:38px 28px;border-radius:16px}
  .page-hero{padding:130px 0 64px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .contact-card{padding:26px}
}

/* ===========================================================
   产品页专用：仪表盘模拟 / 双栏首屏 / 模块列表
   =========================================================== */
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;margin-top:34px}
.hero-grid .hero-inner{max-width:none}

/* 模拟系统界面 */
.dash{
  background:linear-gradient(165deg,#FDFEFE,#EEF2F7);border-radius:16px;overflow:hidden;
  box-shadow:0 44px 90px -46px rgba(0,0,0,.75);color:var(--ink);border:1px solid rgba(255,255,255,.45);
}
.dash-bar{
  display:flex;align-items:center;justify-content:space-between;padding:10px 14px;
  background:#0D2438;color:rgba(255,255,255,.62);font-size:11px;letter-spacing:.12em;
}
.dash-dots span{width:8px;height:8px;border-radius:50%;background:#36526C;display:inline-block;margin-right:5px}
.dash-body{padding:16px}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}
.kpi{background:#fff;border:1px solid #E6EBF1;border-radius:10px;padding:11px 12px}
.kpi span{font-size:10.5px;color:var(--muted);letter-spacing:.04em;display:block;white-space:nowrap}
.kpi b{display:block;font-size:15px;color:var(--navy);margin-top:5px;letter-spacing:.02em}
.kpi b.up{color:#1B9C6A}
.kpi b.warn{color:#B8791D}
.chart{
  display:flex;align-items:flex-end;gap:7px;height:104px;margin-top:12px;padding:12px 14px 10px;
  background:#fff;border:1px solid #E6EBF1;border-radius:10px;
}
.chart i{flex:1;background:linear-gradient(180deg,#C9A45C,#EBDCB8);border-radius:4px 4px 0 0;display:block;height:var(--h);opacity:.92}
.chart i:nth-child(even){background:linear-gradient(180deg,#12314E,#3A6385)}
.rows{margin-top:12px;background:#fff;border:1px solid #E6EBF1;border-radius:10px;overflow:hidden}
.row{display:grid;grid-template-columns:1.1fr 1.5fr .85fr .75fr;gap:8px;padding:8px 12px;font-size:11.5px;border-bottom:1px solid #F1F4F8;color:#54626F}
.row:last-child{border-bottom:0}
.row.head{background:#F6F8FA;color:#8A96A3;font-size:10.5px;letter-spacing:.08em}
.pill{display:inline-block;padding:2px 8px;border-radius:999px;font-size:10.5px;background:#E9F5EF;color:#1B9C6A;text-align:center}
.pill.warn{background:#FDF1E3;color:#B8791D}
.pill.info{background:#EAF1FA;color:#2B6CB0}

/* 模块列表（功能页） */
.mod{
  display:grid;grid-template-columns:64px 1fr;gap:26px;padding:34px 0;border-bottom:1px solid var(--line);
}
.mod:last-child{border-bottom:0}
.mod .ico{width:44px;height:44px;color:var(--gold)}
.mod h3{font-size:20px;color:var(--navy);font-weight:600;margin-bottom:10px}
.mod p{color:var(--muted);font-size:15px;margin-bottom:12px}
.mod ul{display:flex;flex-wrap:wrap;gap:8px 18px}
.mod ul li{font-size:14px;color:var(--navy-3);position:relative;padding-left:14px}
.mod ul li::before{content:"";position:absolute;left:0;top:11px;width:5px;height:5px;border-radius:50%;background:var(--gold)}

/* 三条链路 */
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.flow{border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;background:#fff}
.flow h4{font-size:17px;color:var(--navy);font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.flow h4 .dot{width:8px;height:8px;border-radius:50%;background:var(--gold)}
.flow ol{counter-reset:f;display:flex;flex-direction:column;gap:10px}
.flow ol li{font-size:14px;color:var(--muted);padding-left:26px;position:relative;counter-increment:f}
.flow ol li::before{
  content:counter(f);position:absolute;left:0;top:1px;width:18px;height:18px;border-radius:50%;
  background:#EDF2F7;color:var(--navy-3);font-size:11px;display:flex;align-items:center;justify-content:center;
}

/* 规格表 */
.spec{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 0 0 1px var(--line)}
.spec th,.spec td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line)}
.spec th{background:#F5F7FA;color:var(--navy);font-weight:600;font-size:13.5px;letter-spacing:.06em}
.spec tr:last-child td{border-bottom:0}
.spec td:first-child{color:var(--muted);width:26%}

@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .flow-grid{grid-template-columns:1fr}
  .mod{grid-template-columns:1fr;gap:12px}
}
@media (max-width:720px){
  .kpis{grid-template-columns:repeat(2,1fr)}
  .row{grid-template-columns:1fr 1fr;font-size:10.5px}
  .row .hide-s{display:none}
  .chart{height:86px}
}

/* 防止网格子项撑破移动端宽度 */
.hero-grid>*{min-width:0}
.dash{min-width:0;max-width:100%}
.kpis{min-width:0}
.kpi{min-width:0}
.kpi span{white-space:normal}
.row>*{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.slots{min-width:0}