/* nav.css —— 全站统一导航栏样式（与首页 style4.css 一致），主色 #660874，最后加载用 !important 覆盖差异 */
.navbar{display:flex!important;justify-content:space-between!important;align-items:center!important;padding:15px 50px!important;background-color:#fff!important;background:#fff!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important;box-shadow:0 2px 4px rgba(0,0,0,0.1)!important;position:fixed!important;top:0!important;left:0!important;right:0!important;width:100%!important;z-index:1000!important;transition:all .3s ease!important;border-bottom:none!important;height:auto!important}
.navbar.scrolled{padding:10px 50px!important;box-shadow:0 4px 8px rgba(0,0,0,0.15)!important}
.logo{display:flex!important;align-items:center!important;gap:6px!important}
.logo img{height:44px!important;width:auto!important;margin-right:0!important;transition:all .3s ease!important}
/* logo.png 右侧自带约 15px 透明留白（按 44px 高度渲染约合 7px），用负外边距抵消，让图标与品牌文字贴合 */
.logo img+img{margin-left:-8px!important}
.logo img:hover{transform:scale(1.05)!important}
.logo span{font-size:1.5rem!important;font-weight:bold!important;color:#660874!important;-webkit-text-fill-color:#660874!important;background:none!important;-webkit-background-clip:initial!important;background-clip:initial!important}
.logo-extra{height:44px!important;width:auto!important;margin:0!important;flex-shrink:0!important;transition:all .3s ease!important}
.logo-extra:hover{transform:scale(1.05)!important}
.main-nav ul,.main-nav .nav-links{list-style:none!important;display:flex!important;gap:0!important;margin:0!important;padding:0!important}
.main-nav ul li,.main-nav .nav-links li{margin:0 8px!important;position:relative!important;list-style:none!important}
.main-nav ul li a,.main-nav .nav-links a{color:#333!important;padding:8px 20px!important;font-size:1.1rem!important;font-weight:normal!important;position:relative!important;display:block!important;border-radius:999px!important;background:none!important;text-decoration:none!important;transition:all .3s ease!important}
.main-nav ul li a::after,.main-nav .nav-links a::after{content:none!important;display:none!important}
.main-nav ul li a:hover,.main-nav .nav-links a:hover{color:#fff!important;background:#660874!important;transform:translateY(-1px)!important;box-shadow:0 4px 12px rgba(102,8,116,.35)!important}
.main-nav ul li a.active,.main-nav .nav-links a.active{color:#fff!important;background:#660874!important;font-weight:500!important;box-shadow:0 4px 12px rgba(102,8,116,.35)!important}
.dropdown{position:relative!important}
.dropdown-menu{display:none!important;position:absolute!important;top:100%!important;left:0!important;background-color:#fff!important;background:#fff!important;min-width:200px!important;box-shadow:0 8px 16px rgba(0,0,0,0.1)!important;z-index:1000!important;border-radius:4px!important;padding:8px 0!important;transform:translateY(10px)!important;opacity:0!important;transition:all .3s ease!important}
.dropdown:hover .dropdown-menu{display:block!important;transform:translateY(0)!important;opacity:1!important}
.dropdown-menu a{display:block!important;padding:8px 16px!important;color:#333!important;text-decoration:none!important;transition:background-color .3s ease!important}
.dropdown-menu a:hover{background-color:#f5f5f5!important;color:#660874!important}
.dropdown-menu.mega-menu{display:none!important;position:absolute!important;top:calc(100% + 2px)!important;left:50%!important;transform:translateX(-50%) translateY(10px)!important;width:700px!important;padding:28px 20px 20px!important;background:#fff!important;box-shadow:0 12px 40px rgba(0,0,0,0.14)!important;border-radius:8px!important;z-index:1100!important;margin-top:-4px!important;opacity:1!important}
.dropdown:hover .dropdown-menu.mega-menu{display:grid!important;grid-template-columns:repeat(3,1fr)!important;gap:24px!important;transform:translateX(-50%) translateY(0)!important}
.mega-menu .mega-col{display:flex!important;flex-direction:column!important;min-width:0!important}
.mega-menu .mega-col-title{font-size:1rem!important;font-weight:700!important;color:#660874!important;padding:0 0 12px!important;margin:0 0 12px!important;border-bottom:2px solid #660874!important;display:flex!important;align-items:center!important;gap:8px!important}
.mega-menu .mega-col-title i{font-size:.95rem!important;width:20px!important;text-align:center!important}
.mega-menu .mega-col-items{display:flex!important;flex-direction:column!important;gap:4px!important;list-style:none!important;margin:0!important;padding:0!important}
.mega-menu .mega-col-items li{list-style:none!important;margin:0!important;padding:0!important}
.mega-menu .mega-col-items a{display:block!important;padding:7px 10px!important;font-size:.88rem!important;color:#555!important;border-radius:6px!important;transition:all .2s ease!important;line-height:1.45!important;background:none!important}
.mega-menu .mega-col-items a:hover{background:#f5f3ff!important;color:#660874!important;transform:translateX(2px)!important}
.header{position:fixed!important;top:0!important;left:0!important;right:0!important;height:60px!important;background-color:#fff!important;background:#fff!important;display:flex!important;justify-content:space-between!important;align-items:center!important;padding:0 20px!important;box-shadow:0 2px 10px rgba(0,0,0,0.1)!important;z-index:999!important}
.menu-btn{background:none!important;border:none!important;font-size:1.5rem!important;color:#333!important;cursor:pointer!important;z-index:1000!important}
.sidebar{position:fixed!important;top:0!important;right:-300px!important;width:280px!important;height:100vh!important;background-color:#fff!important;box-shadow:-2px 0 10px rgba(0,0,0,0.15)!important;transition:right .3s ease!important;z-index:1001!important;padding-top:70px!important}
.sidebar.active{right:0!important}
.close-btn{position:absolute!important;top:20px!important;right:20px!important;background:none!important;border:none!important;font-size:1.5rem!important;color:#333!important;cursor:pointer!important}
.nav-list{padding:0 20px!important;list-style:none!important;margin:0!important}
.nav-list li{margin-bottom:15px!important;border-bottom:1px solid #f0f0f0!important;padding-bottom:10px!important;list-style:none!important}
.nav-list a{color:#333!important;font-size:1rem!important;display:block!important;padding:5px 0!important;text-decoration:none!important}
.nav-list a.active{color:#660874!important;font-weight:bold!important}
.nav-list .dropdown-menu{margin-left:20px!important;margin-top:10px!important;position:static!important;box-shadow:none!important;min-width:auto!important;padding:0!important}
.overlay{position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;background-color:rgba(0,0,0,0.5)!important;opacity:0!important;visibility:hidden!important;transition:opacity .3s ease,visibility .3s ease!important;z-index:1000!important}
.overlay.active{opacity:1!important;visibility:visible!important}
@media (max-width:1200px){.navbar{padding:15px 30px!important}.navbar.scrolled{padding:10px 30px!important}.main-nav{display:none!important}}
@media (min-width:768px){.navbar{display:flex!important;padding:15px 20px!important}.header{display:none!important}.sidebar,.overlay{display:none!important}.main-nav .nav-links{display:flex!important;gap:25px!important}.main{margin-top:70px!important}}
@media (min-width:768px) and (max-width:1023px){.dropdown-menu.mega-menu{position:fixed!important;top:90px!important;left:3vw!important;width:94vw!important;margin-top:-14px!important;transform:none!important}.dropdown:hover .dropdown-menu.mega-menu{transform:none!important}}
@media (max-width:767px){.dropdown-menu.mega-menu{display:none!important}}

/* ============ 页脚 ============ */
.footer.nf{position:relative;padding:0!important;background:radial-gradient(ellipse at top,#f5eeff 0%,#fafafa 55%,#f3eef9 100%)!important;border-top:6px solid #660874!important;color:#555;overflow:hidden}
/* 顶部渐变发光分隔带 */
.footer.nf::before{content:'';position:absolute;top:0;left:0;right:0;height:6px;background:linear-gradient(90deg,transparent 0%,#a855f7 25%,#660874 50%,#a855f7 75%,transparent 100%);opacity:1;z-index:3}
/* 背景光晕 */
.footer.nf::after{content:'';position:absolute;top:-120px;left:50%;transform:translateX(-50%);width:700px;height:320px;background:radial-gradient(ellipse,rgba(168,85,247,.12),transparent 70%);filter:blur(50px);pointer-events:none;z-index:1}
/* 顶部口号区（其他页面使用） */
.nf-slogan{position:relative;padding:44px 0 30px;text-align:center;z-index:2}
.nf-slogan::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:140px;height:2px;background:linear-gradient(90deg,transparent,#660874,transparent)}
.nf-slogan-text{font-size:1.8rem;font-weight:800;letter-spacing:12px;background:linear-gradient(135deg,#660874 0%,#a855f7 50%,#660874 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
/* 主体三列 */
.nf-main{position:relative;padding:48px 0 52px;z-index:2}
.nf-grid{display:grid;grid-template-columns:1.2fr 1fr 1.4fr;gap:52px;align-items:start}
/* 品牌区 */
.nf-brand{display:flex;flex-direction:column}
.nf-logo{height:72px;width:72px;object-fit:cover;border-radius:18px;margin-bottom:18px;box-shadow:0 6px 20px rgba(102,8,116,.25);transition:transform .35s}
.nf-logo:hover{transform:scale(1.06)}
.nf-position{color:#660874;font-size:1.15rem;font-weight:700;margin:0 0 10px}
.nf-mission{font-size:1.2rem;font-weight:800;letter-spacing:3px;margin:0 0 18px;background:linear-gradient(135deg,#660874 0%,#a855f7 50%,#660874 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.nf-values{color:#a855f7;font-size:.98rem;font-weight:600;margin:0;letter-spacing:1px}
.nf-dia{color:#c084fc;margin:0 12px}
/* 公司信息 */
.nf-contact h4{color:#333;font-size:1.08rem;font-weight:700;margin:0 0 22px;position:relative;padding-bottom:12px;letter-spacing:1px}
.nf-contact h4::after{content:'';position:absolute;left:0;bottom:0;width:42px;height:3px;background:linear-gradient(90deg,#660874,#a855f7);border-radius:3px}
.nf-contact ul{list-style:none;margin:0;padding:0}
.nf-contact li{display:flex;gap:14px;margin-bottom:18px;font-size:.95rem;color:#555;line-height:1.7;align-items:center}
.nf-contact li i{color:#660874;width:36px;height:36px;flex-shrink:0;background:#fff;border:1.5px solid rgba(102,8,116,.25);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:.9rem;box-shadow:0 2px 8px rgba(102,8,116,.1);transition:all .3s}
.nf-contact li:hover i{background:linear-gradient(135deg,#660874,#a855f7);color:#fff;border-color:transparent;transform:translateY(-2px)}
/* 二维码 */
.nf-codes{display:flex;gap:20px;align-items:flex-start;justify-content:flex-end}
.nf-qr{display:flex;flex-direction:column;align-items:center;gap:10px}
.nf-qr img{width:108px;height:108px;object-fit:cover;background:#fff;border:2px solid rgba(168,85,247,.35);border-radius:16px;padding:6px;box-shadow:0 6px 18px rgba(102,8,116,.12);transition:transform .35s,box-shadow .35s}
.nf-qr:hover img{transform:translateY(-6px);box-shadow:0 14px 28px rgba(168,85,247,.4)}
.nf-qr span{font-size:.82rem;color:#660874;font-weight:600;text-align:center;white-space:nowrap}
.nf-qr-empty img{display:none}
.nf-qr-empty::before{content:'二维码 即将提供';width:108px;height:108px;display:flex;align-items:center;justify-content:center;text-align:center;background:#f3eef9;border:1.5px dashed rgba(102,8,116,.3);border-radius:16px;color:#660874;font-size:.8rem}
/* 版权条 */
.nf-bottom{position:relative;padding:18px 0;text-align:center;border-top:1px solid rgba(102,8,116,.12);background:linear-gradient(90deg,#1a0e2e,#2d1b4a);z-index:2}
.nf-bottom p{margin:0;font-size:.85rem;color:#c084fc;letter-spacing:1px}
/* 响应式 */
@media (max-width:992px){
  .nf-grid{grid-template-columns:1fr;gap:36px}
  .nf-codes{justify-content:flex-start;flex-wrap:wrap}
  .nf-slogan-text{font-size:1.3rem;letter-spacing:6px}
  .nf-mission{font-size:.95rem;letter-spacing:2px}
}
@media (max-width:560px){
  .nf-codes{flex-wrap:wrap;justify-content:center}
  .nf-slogan-text{font-size:1.05rem;letter-spacing:3px}
  .nf-mission{font-size:.9rem;letter-spacing:1px}
  .nf-logo{height:60px;width:60px}
}