/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:15px;
  line-height:1.7;
  color:#1a1a1a;
  background:#ffffff;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s}
a:hover{color:#c89253}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{font-weight:600;line-height:1.35;color:#0a2540}

/* ===== 颜色变量 ===== */
:root{
  --c-bg:#ffffff;
  --c-bg-alt:#f6f8fb;
  --c-text:#1a1a1a;
  --c-muted:#5a6577;
  --c-primary:#0a2540;
  --c-accent:#d4a574;
  --c-accent-2:#c89253;
  --c-line:#e6e9ef;
  --c-red:#e44d4d;
  --c-blue:#1f6feb;
  --shadow-sm:0 2px 8px rgba(10,37,64,.06);
  --shadow-md:0 8px 24px rgba(10,37,64,.10);
  --shadow-lg:0 16px 48px rgba(10,37,64,.14);
  --radius:8px;
  --container:1200px;
}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* ===== 顶部导航 ===== */
.top-bar{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--c-line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:baseline;gap:8px;font-weight:700;font-size:20px;white-space:nowrap}
.logo-main{
  color:#d4a574;
  font-weight:800;
  font-size:24px;
  letter-spacing:1px;
  position:relative;
  text-shadow:0 1px 0 rgba(0,0,0,.04);
}
.reg-mark{font-size:11px;color:#d4a574;margin-left:2px;top:-10px;position:relative;font-weight:600}
.logo-sep{color:#9aa3b2;font-weight:300;margin:0 2px}
.logo-sub{color:#0a2540;font-weight:600;font-size:18px;letter-spacing:.5px}
.main-nav ul{display:flex;gap:4px}
.main-nav a{
  display:block;
  padding:10px 14px;
  font-size:14.5px;
  color:#3a4357;
  border-radius:6px;
  position:relative;
  font-weight:500;
}
.main-nav a:hover{color:#0a2540;background:rgba(10,37,64,.04)}
.main-nav a::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;background:var(--c-accent);
  transform:scaleX(0);transform-origin:left;
  transition:transform .3s ease;
}
.main-nav a:hover::after{transform:scaleX(1)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:6px;font-size:18px;color:#0a2540}

/* ===== Hero Banner ===== */
.hero{
  position:relative;
  background:linear-gradient(135deg,#0a2540 0%,#14365e 60%,#1c4674 100%);
  color:#fff;
  overflow:hidden;
}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-shape{
  position:absolute;
  border-radius:50%;
  filter:blur(60px);
  opacity:.45;
}
.hero-shape.s1{width:520px;height:520px;background:#d4a574;top:-180px;right:-120px;animation:floatA 12s ease-in-out infinite}
.hero-shape.s2{width:380px;height:380px;background:#1f6feb;bottom:-160px;left:-100px;animation:floatB 14s ease-in-out infinite}
.hero-shape.s3{width:280px;height:280px;background:#2d8a6a;top:30%;left:40%;opacity:.25;animation:floatA 18s ease-in-out infinite reverse}
@keyframes floatA{
  0%,100%{transform:translate(0,0)}
  50%{transform:translate(30px,-20px)}
}
@keyframes floatB{
  0%,100%{transform:translate(0,0)}
  50%{transform:translate(-25px,30px)}
}
.hero-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:60px;
  align-items:center;
  padding:90px 24px 110px;
}
.hero-eyebrow{
  display:inline-block;
  font-size:13px;
  color:#d4a574;
  letter-spacing:1.5px;
  background:rgba(212,165,116,.12);
  border:1px solid rgba(212,165,116,.3);
  padding:6px 14px;
  border-radius:20px;
  margin-bottom:24px;
}
.hero-title{
  font-size:42px;
  font-weight:700;
  line-height:1.25;
  color:#fff;
  margin-bottom:20px;
  letter-spacing:.5px;
}
.hero-desc{
  font-size:16px;
  color:rgba(255,255,255,.78);
  margin-bottom:32px;
  max-width:560px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 26px;
  font-size:15px;font-weight:500;
  border-radius:6px;
  transition:all .3s;
  border:1px solid transparent;
}
.btn-primary{background:#d4a574;color:#0a2540}
.btn-primary:hover{background:#c89253;color:#0a2540;transform:translateY(-2px);box-shadow:0 10px 24px rgba(212,165,116,.35)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;transform:translateY(-2px)}
.hero-points{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 24px;max-width:540px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.85)}
.hero-points i{color:#d4a574;font-size:13px}

.hero-card{
  position:relative;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  border-radius:14px;
  padding:32px;
  backdrop-filter:blur(10px);
  box-shadow:0 20px 60px rgba(0,0,0,.25);
}
.hero-card-inner{position:relative;z-index:1}
.card-label{
  font-size:13px;color:#d4a574;letter-spacing:1.5px;
  text-transform:uppercase;margin-bottom:24px;font-weight:500;
}
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card-cell{padding:16px 12px;background:rgba(255,255,255,.04);border-radius:8px;text-align:center;border:1px solid rgba(255,255,255,.08)}
.card-cell .num{font-size:34px;font-weight:700;color:#fff;letter-spacing:0}
.card-cell .unit{font-size:14px;color:#d4a574;margin-left:2px;font-weight:500}
.card-cell p{font-size:13px;color:rgba(255,255,255,.7);margin-top:6px}
.card-foot{font-size:12px;color:rgba(255,255,255,.45);margin-top:20px;text-align:center}

/* Hero 走马灯 */
.hero-marquee{
  position:relative;z-index:1;
  background:rgba(0,0,0,.18);
  border-top:1px solid rgba(255,255,255,.08);
  overflow:hidden;
  padding:14px 0;
}
.marquee-track{
  display:flex;gap:32px;
  white-space:nowrap;
  animation:marquee 40s linear infinite;
  color:rgba(255,255,255,.7);
  font-size:14px;letter-spacing:1px;
}
.marquee-track span{flex-shrink:0}
@keyframes marquee{
  0%{transform:translateX(0)}
  100%{transform:translateX(-50%)}
}

/* ===== 通用板块 ===== */
.section{padding:90px 0}
.section-alt{background:var(--c-bg-alt)}
.section-head{text-align:center;max-width:760px;margin:0 auto 56px}
.eyebrow{
  display:inline-block;
  font-size:13px;color:var(--c-accent-2);
  letter-spacing:2px;
  font-weight:500;
  margin-bottom:14px;
  position:relative;
  padding:0 24px;
}
.eyebrow::before,.eyebrow::after{
  content:"";position:absolute;top:50%;
  width:18px;height:1px;background:var(--c-accent-2);
}
.eyebrow::before{left:0}
.eyebrow::after{right:0}
.section-head h2{font-size:32px;margin-bottom:16px;letter-spacing:.5px}
.section-desc{color:var(--c-muted);font-size:15.5px;line-height:1.8}

/* ===== 业务介绍 ===== */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.service-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  padding:32px 24px;
  transition:all .3s;
  position:relative;
  overflow:hidden;
}
.service-item::before{
  content:"";position:absolute;left:0;top:0;
  width:4px;height:0;background:var(--c-accent);
  transition:height .3s;
}
.service-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent}
.service-item:hover::before{height:100%}
.si-icon{
  width:54px;height:54px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#f4ebdc,#f8f0e0);
  color:var(--c-accent-2);
  font-size:22px;margin-bottom:18px;
}
.service-item h3{font-size:18px;margin-bottom:10px}
.service-item > p{color:var(--c-muted);font-size:14px;margin-bottom:14px}
.service-item ul li{
  font-size:13.5px;color:#3a4357;
  padding:5px 0 5px 18px;
  position:relative;
}
.service-item ul li::before{
  content:"";position:absolute;left:0;top:12px;
  width:6px;height:6px;background:var(--c-accent);border-radius:50%;
}

/* ===== 核心优势 ===== */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.adv-item{
  background:#fff;
  border-radius:var(--radius);
  padding:32px 28px;
  border:1px solid var(--c-line);
  transition:all .3s;
}
.adv-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--c-accent)}
.adv-num{
  font-size:42px;font-weight:700;color:var(--c-accent);
  line-height:1;margin-bottom:16px;
  font-family:"Georgia",serif;
}
.adv-item h3{font-size:18px;margin-bottom:10px}
.adv-item p{color:var(--c-muted);font-size:14px}

/* ===== 服务流程 ===== */
.process{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:20px;
  position:relative;
}
.process::before{
  content:"";
  position:absolute;
  top:32px;
  left:8%;right:8%;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--c-accent),transparent);
  z-index:0;
}
.process li{
  text-align:center;
  position:relative;
  z-index:1;
}
.process .step{
  display:inline-flex;align-items:center;justify-content:center;
  width:64px;height:64px;border-radius:50%;
  background:#fff;border:2px solid var(--c-accent);
  color:var(--c-accent-2);font-weight:700;font-size:18px;
  margin-bottom:14px;
  box-shadow:0 6px 18px rgba(212,165,116,.25);
}
.process h3{font-size:16px;margin-bottom:6px}
.process p{font-size:13px;color:var(--c-muted);padding:0 4px}

/* ===== 行业方案 ===== */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sol-card{
  background:#fff;
  border-radius:var(--radius);
  padding:32px 28px;
  border:1px solid var(--c-line);
  transition:all .3s;
  position:relative;
}
.sol-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.sol-tag{
  display:inline-block;
  font-size:12px;
  color:var(--c-accent-2);
  background:rgba(212,165,116,.12);
  padding:4px 12px;
  border-radius:20px;
  margin-bottom:14px;
  letter-spacing:1px;
  font-weight:500;
}
.sol-card h3{font-size:18px;margin-bottom:10px}
.sol-card p{color:var(--c-muted);font-size:14px}

/* ===== FAQ ===== */
.faq-list{max-width:880px;margin:0 auto}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .3s,border-color .3s;
}
.faq-item:hover{box-shadow:var(--shadow-sm)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;
  font-size:15.5px;
  font-weight:500;
  color:#0a2540;
  text-align:left;
  gap:20px;
}
.faq-q i{
  color:var(--c-accent-2);
  font-size:14px;
  transition:transform .3s;
  flex-shrink:0;
}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease;
}
.faq-item.open .faq-a{max-height:300px}
.faq-a p{padding:0 24px 22px;color:var(--c-muted);font-size:14.5px;line-height:1.8}

/* ===== 关于铭赞 ===== */
.about-wrap{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:60px;
  align-items:center;
}
.about-text p{color:var(--c-muted);margin-bottom:14px;font-size:15px}
.about-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:24px}
.about-list li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:#3a4357}
.about-list i{color:var(--c-accent-2);font-size:14px;width:24px;height:24px;background:rgba(212,165,116,.12);border-radius:50%;display:inline-flex;align-items:center;justify-content:center}
.about-num{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.num-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  padding:24px 20px;
  text-align:center;
  transition:all .3s;
}
.num-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--c-accent)}
.nc-label{font-size:13px;color:var(--c-muted);margin-bottom:8px;letter-spacing:1px}
.nc-num{font-size:36px;font-weight:700;color:#0a2540;line-height:1}
.nc-num i{font-size:16px;color:var(--c-accent-2);font-style:normal;margin-left:2px}
.nc-tip{font-size:12.5px;color:var(--c-muted);margin-top:8px}

/* ===== 联系方式 ===== */
.contact-wrap{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:40px;
  align-items:start;
}
.contact-info{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:18px;
}
.ci-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  padding:20px;
  display:flex;
  align-items:center;
  gap:14px;
  transition:all .3s;
}
.ci-item:hover{box-shadow:var(--shadow-sm);border-color:var(--c-accent)}
.ci-item > i{
  width:42px;height:42px;
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#f4ebdc,#f8f0e0);
  color:var(--c-accent-2);
  font-size:18px;
  flex-shrink:0;
}
.ci-label{font-size:12.5px;color:var(--c-muted);margin-bottom:4px;letter-spacing:.5px}
.ci-value{font-size:15.5px;color:#0a2540;font-weight:500}
.contact-qr{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--radius);
  padding:30px;
  text-align:center;
}
.qr-box{margin-bottom:18px}
.qr-box img{
  width:200px;height:200px;
  margin:0 auto;
  border:1px solid var(--c-line);
  border-radius:6px;
  padding:8px;
  background:#fff;
}
.qr-box p{font-size:14px;color:#0a2540;margin-top:12px;font-weight:500}
.qr-tips{text-align:left;padding-top:16px;border-top:1px solid var(--c-line)}
.qr-tips p{font-size:13.5px;color:var(--c-muted);padding:6px 0;line-height:1.7}

/* ===== 底部 ===== */
.footer{
  background:#0a2540;
  color:rgba(255,255,255,.7);
  padding:60px 0 0;
}
.footer-nav{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:24px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.fn-col h4{
  color:#d4a574;
  font-size:15px;
  margin-bottom:16px;
  font-weight:500;
  letter-spacing:1px;
}
.fn-col ul li{margin-bottom:8px}
.fn-col ul a{font-size:13px;color:rgba(255,255,255,.65);transition:color .2s}
.fn-col ul a:hover{color:#d4a574}
.footer-copy{
  padding:24px 0;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-copy a{color:rgba(255,255,255,.85)}
.footer-copy a:hover{color:#d4a574}

/* ===== 浮动工具栏 ===== */
.float-tool{
  position:fixed;
  right:20px;
  bottom:24px;
  z-index:40;
  display:flex;
  flex-direction:column;
  gap:10px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--c-line);
  border-radius:14px;
  padding:8px;
  box-shadow:var(--shadow-md);
  backdrop-filter:blur(10px);
}
.ft-item{
  width:54px;height:54px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  border-radius:10px;
  font-size:18px;
  color:#0a2540;
  transition:all .25s;
  position:relative;
}
.ft-item span{font-size:11px;margin-top:2px;color:var(--c-muted);font-weight:500}
.ft-item:hover{background:#0a2540;color:#fff;transform:translateY(-2px)}
.ft-item:hover span{color:#d4a574}

/* ===== 滚动入场动画 ===== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

/* ===== 响应式 ===== */
@media (max-width: 1100px){
  .main-nav a{padding:10px 10px;font-size:14px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .footer-nav{grid-template-columns:repeat(3,1fr)}
}
@media (max-width: 900px){
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .main-nav{
    position:absolute;
    top:72px;left:0;right:0;
    background:#fff;
    border-bottom:1px solid var(--c-line);
    max-height:0;overflow:hidden;
    transition:max-height .4s;
  }
  .main-nav.open{max-height:500px}
  .main-nav ul{flex-direction:column;padding:14px 24px}
  .main-nav a{padding:12px 0;border-bottom:1px solid var(--c-line);border-radius:0}
  .main-nav a::after{display:none}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:60px 24px 80px}
  .hero-title{font-size:30px}
  .section-head h2{font-size:26px}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:repeat(3,1fr);gap:24px 16px}
  .process::before{display:none}
  .sol-grid{grid-template-columns:repeat(2,1fr)}
  .about-wrap{grid-template-columns:1fr;gap:40px}
  .contact-wrap{grid-template-columns:1fr}
  .footer-nav{grid-template-columns:repeat(2,1fr)}
  .float-tool{right:10px;bottom:10px;padding:6px}
  .ft-item{width:46px;height:46px;font-size:15px}
}
@media (max-width: 600px){
  .container{padding:0 16px}
  .section{padding:60px 0}
  .hero-title{font-size:24px}
  .hero-points{grid-template-columns:1fr}
  .service-grid,.adv-grid,.sol-grid,.contact-info{grid-template-columns:1fr}
  .process{grid-template-columns:repeat(2,1fr)}
  .about-list{grid-template-columns:1fr}
  .footer-nav{grid-template-columns:1fr 1fr;gap:20px}
  .logo{font-size:16px}
  .logo-main{font-size:20px}
  .logo-sub{font-size:15px}
}