/* ===== 铭赞网络 公共基础样式 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#1f2329;background:#f6f8fb;line-height:1.6;overflow-x:hidden;min-height:100vh}
a{color:inherit;text-decoration:none;transition:color .25s ease}
a:hover{color:#1f6fff}
img{max-width:100%;display:block;border:0}
ul,ol{list-style:none}
button,input,textarea,select{font:inherit;color:inherit;outline:none;border:0;background:transparent}
button{cursor:pointer}
:root{
  --mz-primary:#1f6fff;
  --mz-primary-dark:#0d4ed8;
  --mz-accent:#ff6a3d;
  --mz-text:#1f2329;
  --mz-text-2:#525a6a;
  --mz-text-3:#8a93a3;
  --mz-border:#e6eaf0;
  --mz-bg:#ffffff;
  --mz-bg-soft:#f6f8fb;
  --mz-radius:14px;
  --mz-radius-lg:20px;
  --mz-shadow:0 8px 30px rgba(20,40,90,.08);
  --mz-shadow-lg:0 20px 60px rgba(20,40,90,.12);
  --mz-grad-primary:linear-gradient(135deg,#1f6fff 0%,#0d4ed8 100%);
  --mz-grad-warm:linear-gradient(135deg,#ff6a3d 0%,#ff9a3d 100%);
  --mz-grad-mix:linear-gradient(135deg,#1f6fff 0%,#5b8bff 50%,#ff6a3d 100%);
  --mz-container:1240px;
}

/* ===== 通用容器 ===== */
.mz-container{max-width:var(--mz-container);margin:0 auto;padding:0 24px;width:100%}
.mz-row{display:flex;flex-wrap:wrap;margin:0 -12px}
.mz-row>[class*="mz-col"]{padding:0 12px}
.mz-col-3{flex:0 0 25%;max-width:25%}
.mz-col-4{flex:0 0 33.3333%;max-width:33.3333%}
.mz-col-6{flex:0 0 50%;max-width:50%}
.mz-col-8{flex:0 0 66.6666%;max-width:66.6666%}
.mz-col-12{flex:0 0 100%;max-width:100%}
@media (max-width:900px){
  .mz-col-3,.mz-col-4,.mz-col-6,.mz-col-8{flex:0 0 100%;max-width:100%}
}

/* ===== 顶栏 ===== */
.mz-topbar{background:#0d2a5e;color:#cfd9ee;font-size:13px;height:38px;display:flex;align-items:center}
.mz-topbar .mz-container{display:flex;justify-content:space-between;align-items:center;width:100%}
.mz-topbar a{color:#cfd9ee}
.mz-topbar a:hover{color:#fff}
.mz-topbar-info span{margin-right:18px;display:inline-flex;align-items:center;gap:6px}
.mz-topbar-info i{font-style:normal;opacity:.85}
.mz-topbar-links a{margin-left:14px}

/* ===== 头部(导航+LOGO) ===== */
.mz-header{position:sticky;top:0;z-index:99;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(230,234,240,.7);transition:all .3s ease}
.mz-header-inner{display:flex;align-items:center;justify-content:space-between;height:78px;gap:24px}
.mz-logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.mz-logo-mark{width:46px;height:46px;border-radius:12px;background:var(--mz-grad-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:22px;letter-spacing:1px;box-shadow:0 8px 24px rgba(31,111,255,.35);position:relative;overflow:hidden}
.mz-logo-mark::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(255,255,255,.35),transparent 60%)}
.mz-logo-text{display:flex;flex-direction:column;line-height:1.1}
.mz-logo-text .mz-brand{font-size:22px;font-weight:800;color:#0d2a5e;letter-spacing:1.5px;display:flex;align-items:center;gap:4px}
.mz-logo-text .mz-brand sup{color:var(--mz-accent);font-size:11px;font-weight:600;vertical-align:super}
.mz-logo-text .mz-slogan{font-size:12px;color:#8a93a3;margin-top:4px;letter-spacing:1px}
.mz-logo-text .mz-slogan i{font-style:normal;color:#cfd9ee;margin:0 4px}

/* ===== 主导航 ===== */
.mz-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:flex-end}
.mz-nav>li>a{position:relative;display:inline-block;padding:10px 16px;font-size:15px;font-weight:500;color:#1f2329;border-radius:8px;transition:all .2s ease}
.mz-nav>li>a:hover,.mz-nav>li>a.mz-active{color:var(--mz-primary);background:rgba(31,111,255,.08)}
.mz-nav>li>a::after{content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;background:var(--mz-grad-primary);border-radius:2px;transition:all .25s ease;transform:translateX(-50%)}
.mz-nav>li>a:hover::after,.mz-nav>li>a.mz-active::after{width:24px}
.mz-nav-btn{display:inline-flex;align-items:center;gap:6px;padding:9px 18px;background:var(--mz-grad-primary);color:#fff;border-radius:24px;font-size:14px;font-weight:500;box-shadow:0 8px 22px rgba(31,111,255,.32);transition:all .25s ease}
.mz-nav-btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(31,111,255,.4);color:#fff}
.mz-menu-toggle{display:none;font-size:24px;background:transparent;color:#1f2329;padding:8px}

/* ===== 通用按钮 ===== */
.mz-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;font-size:15px;font-weight:500;border-radius:30px;transition:all .25s ease;cursor:pointer}
.mz-btn-primary{background:var(--mz-grad-primary);color:#fff;box-shadow:0 8px 22px rgba(31,111,255,.32)}
.mz-btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(31,111,255,.42);color:#fff}
.mz-btn-warm{background:var(--mz-grad-warm);color:#fff;box-shadow:0 8px 22px rgba(255,106,61,.32)}
.mz-btn-warm:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(255,106,61,.42);color:#fff}
.mz-btn-ghost{border:1.5px solid #fff;color:#fff;background:transparent}
.mz-btn-ghost:hover{background:#fff;color:var(--mz-primary)}
.mz-btn-outline{border:1.5px solid var(--mz-primary);color:var(--mz-primary);background:transparent}
.mz-btn-outline:hover{background:var(--mz-primary);color:#fff}

/* ===== 板块通用 ===== */
.mz-section{padding:80px 0;position:relative}
.mz-section-sm{padding:50px 0}
.mz-section-head{text-align:center;margin-bottom:50px;max-width:780px;margin-left:auto;margin-right:auto}
.mz-section-eyebrow{display:inline-block;font-size:13px;letter-spacing:4px;color:var(--mz-primary);background:rgba(31,111,255,.08);padding:6px 16px;border-radius:30px;margin-bottom:14px;font-weight:500}
.mz-section-title{font-size:36px;font-weight:800;color:#0d2a5e;letter-spacing:1px;margin-bottom:14px;line-height:1.3}
.mz-section-title em{font-style:normal;color:var(--mz-primary);position:relative}
.mz-section-title em::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:8px;background:rgba(31,111,255,.15);border-radius:4px;z-index:-1}
.mz-section-desc{font-size:15px;color:var(--mz-text-2);line-height:1.8}
@media (max-width:768px){
  .mz-section{padding:54px 0}
  .mz-section-title{font-size:26px}
  .mz-section-head{margin-bottom:36px}
}

/* ===== 卡片通用 ===== */
.mz-card{background:#fff;border-radius:var(--mz-radius);box-shadow:var(--mz-shadow);overflow:hidden;transition:all .3s ease;height:100%}
.mz-card:hover{transform:translateY(-6px);box-shadow:var(--mz-shadow-lg)}

/* ===== FAQ ===== */
.mz-faq{background:#fff;border-radius:var(--mz-radius);box-shadow:var(--mz-shadow);overflow:hidden}
.mz-faq-item{border-bottom:1px solid var(--mz-border)}
.mz-faq-item:last-child{border-bottom:0}
.mz-faq-q{display:flex;align-items:flex-start;justify-content:space-between;padding:20px 26px;cursor:pointer;gap:16px;transition:background .2s ease}
.mz-faq-q:hover{background:#f9fbff}
.mz-faq-q-text{flex:1;font-size:16px;font-weight:600;color:#0d2a5e;line-height:1.6}
.mz-faq-q-num{color:var(--mz-accent);font-weight:700;margin-right:8px;font-family:Georgia,serif}
.mz-faq-q-icon{flex-shrink:0;width:24px;height:24px;border-radius:50%;background:rgba(31,111,255,.1);color:var(--mz-primary);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;transition:transform .3s ease}
.mz-faq-a{padding:0 26px 22px 26px;font-size:14.5px;color:var(--mz-text-2);line-height:1.85;display:none}
.mz-faq-a.show{display:block;animation:fadeIn .35s ease}
.mz-faq-item.active .mz-faq-q-icon{transform:rotate(45deg);background:var(--mz-grad-primary);color:#fff}
.mz-faq-item.active .mz-faq-q{background:linear-gradient(90deg,rgba(31,111,255,.04),transparent)}
@keyframes fadeIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}

/* ===== 联系区 ===== */
.mz-contact{position:relative;border-radius:var(--mz-radius-lg);overflow:hidden;background:linear-gradient(135deg,#0d2a5e 0%,#1f4baf 60%,#1f6fff 100%);color:#fff;padding:60px 50px;box-shadow:var(--mz-shadow-lg)}
.mz-contact::before{content:"";position:absolute;top:-120px;right:-80px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.18),transparent 70%);pointer-events:none}
.mz-contact::after{content:"";position:absolute;bottom:-100px;left:-60px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(255,106,61,.25),transparent 70%);pointer-events:none}
.mz-contact-grid{position:relative;display:grid;grid-template-columns:1.2fr 1fr 1fr 1.2fr;gap:36px;align-items:start;z-index:2}
@media (max-width:900px){.mz-contact{padding:36px 22px}.mz-contact-grid{grid-template-columns:1fr 1fr;gap:24px}}
@media (max-width:600px){.mz-contact-grid{grid-template-columns:1fr}}
.mz-contact-title{font-size:24px;font-weight:700;margin-bottom:14px;line-height:1.4}
.mz-contact-sub{font-size:14px;opacity:.85;line-height:1.8;margin-bottom:14px}
.mz-contact-block h4{font-size:15px;font-weight:600;margin-bottom:14px;color:#fff;letter-spacing:1px;display:flex;align-items:center;gap:8px}
.mz-contact-block h4::before{content:"";width:18px;height:2px;background:var(--mz-accent);border-radius:2px}
.mz-contact-item{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;font-size:14px;line-height:1.7}
.mz-contact-item .ic{width:24px;height:24px;border-radius:6px;background:rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:13px;margin-top:1px}
.mz-contact-item .lab{opacity:.7;display:block;font-size:12px;margin-bottom:2px}
.mz-qr{display:flex;flex-direction:column;align-items:center;gap:10px}
.mz-qr img{width:120px;height:120px;border-radius:10px;background:#fff;padding:4px;box-shadow:0 8px 20px rgba(0,0,0,.2)}
.mz-qr span{font-size:12px;opacity:.85;letter-spacing:1px}

/* ===== 友情链接 ===== */
.mz-friends{background:#f1f4fa;padding:24px 0}
.mz-friends-inner{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--mz-text-3)}
.mz-friends-inner strong{color:#0d2a5e;font-weight:600;margin-right:6px}
.mz-friends-inner a{padding:4px 10px;background:#fff;border-radius:6px;border:1px solid var(--mz-border);color:var(--mz-text-2)}
.mz-friends-inner a:hover{color:var(--mz-primary);border-color:var(--mz-primary)}

/* ===== 页脚 ===== */
.mz-footer{background:#0a1f48;color:#a8b3cc;padding:48px 0 22px;font-size:13px;line-height:1.8}
.mz-footer a{color:#a8b3cc}
.mz-footer a:hover{color:#fff}
.mz-footer-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.2fr;gap:36px;margin-bottom:36px}
@media (max-width:900px){.mz-footer-cols{grid-template-columns:1fr 1fr}}
@media (max-width:600px){.mz-footer-cols{grid-template-columns:1fr}}
.mz-footer-col h5{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;position:relative;padding-left:10px}
.mz-footer-col h5::before{content:"";position:absolute;left:0;top:6px;width:3px;height:14px;background:var(--mz-grad-primary);border-radius:2px}
.mz-footer-col ul li{margin-bottom:8px}
.mz-footer-col p{font-size:13px;line-height:1.85}
.mz-footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:18px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;font-size:12.5px;color:#7a86a3}
.mz-footer-bottom a{color:#7a86a3}
.mz-footer-bottom a:hover{color:#fff}
.mz-beian{display:inline-flex;align-items:center;gap:6px}

/* ===== 返回顶部 ===== */
.mz-backtop{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;background:var(--mz-grad-primary);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 10px 30px rgba(31,111,255,.4);opacity:0;visibility:hidden;transform:translateY(20px);transition:all .3s ease;z-index:80;font-size:20px}
.mz-backtop.show{opacity:1;visibility:visible;transform:translateY(0)}
.mz-backtop:hover{transform:translateY(-4px)}

/* ===== 浮动咨询 ===== */
.mz-float-consult{position:fixed;right:24px;top:60%;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px;z-index:75}
.mz-float-consult a{width:54px;height:54px;border-radius:14px;background:#fff;box-shadow:0 10px 30px rgba(20,40,90,.15);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--mz-text-2);font-size:11px;transition:all .25s ease;position:relative}
.mz-float-consult a:hover{transform:translateX(-4px);color:var(--mz-primary)}
.mz-float-consult a .ic{font-size:20px}
.mz-float-consult a.mz-float-primary{background:var(--mz-grad-primary);color:#fff}
.mz-float-consult a.mz-float-primary:hover{color:#fff;box-shadow:0 14px 32px rgba(31,111,255,.45)}
.mz-float-pop{position:absolute;right:64px;top:50%;transform:translateY(-50%) translateX(8px);background:#fff;border-radius:12px;padding:14px;box-shadow:0 14px 36px rgba(20,40,90,.18);opacity:0;visibility:hidden;transition:all .25s ease;white-space:nowrap}
.mz-float-pop.show{opacity:1;visibility:visible;transform:translateY(-50%) translateX(0)}
.mz-float-pop img{width:140px;height:140px;border-radius:8px}
.mz-float-pop::after{content:"";position:absolute;right:-6px;top:50%;transform:translateY(-50%) rotate(45deg);width:12px;height:12px;background:#fff}
@media (max-width:900px){.mz-float-consult{display:none}}

/* ===== 公共工具类 ===== */
.mz-text-center{text-align:center}
.mz-mt-30{margin-top:30px}
.mz-mt-40{margin-top:40px}
.mz-mb-30{margin-bottom:30px}
.mz-mb-40{margin-bottom:40px}
.mz-fade-in{animation:mzFadeIn .7s ease both}
@keyframes mzFadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

/* ===== 响应式 ===== */
@media (max-width:900px){
  .mz-topbar{display:none}
  .mz-menu-toggle{display:flex}
  .mz-nav{position:fixed;top:78px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:14px;box-shadow:0 12px 30px rgba(20,40,90,.1);transform:translateY(-12px);opacity:0;visibility:hidden;transition:all .3s ease;max-height:calc(100vh - 78px);overflow-y:auto}
  .mz-nav.open{opacity:1;visibility:visible;transform:translateY(0)}
  .mz-nav>li>a{padding:14px 16px;font-size:16px}
  .mz-header-inner{height:64px}
  .mz-logo-mark{width:40px;height:40px;font-size:18px}
  .mz-logo-text .mz-brand{font-size:18px}
  .mz-logo-text .mz-slogan{font-size:11px}
}