/* 自动生成，勿手改 —— 源：index.html（跑 _gen_chrome.py 重新导出）
   站点公共骨架样式：导航栏 / 页脚 / 气泡栏 / AI 对话窗
   文章页 <link> 引用本文件；首页仍是内联副本 */
/* ---- 首页 :root 变量（--maxw 等，文章页栅格据此对齐）---- */
:root{--primary:#14387a;--primary-light:#2563c9;--primary-dark:#0a1f3c;--accent:#e8a735;--dark:#0a1733;--text:#2c3858;--muted:#6b7c93;--bg:#f5f7fa;--bg-light:#eef3fb;--white:#fff;--radius:16px;--shadow:0 6px 28px rgba(20,56,122,.10);--shadow-hover:0 16px 48px rgba(20,56,122,.20);--maxw:1200px}

/* ---- 全局基础规则（元素级重置；缺了它文章页文字会多出下划线 ---- */
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:#1f2a44;background:#f5f7fa;line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%}
::selection{background:rgba(232,167,53,.25)}
:root{--primary:#14387a;--primary-light:#2563c9;--primary-dark:#0a1f3c;--accent:#e8a735;--dark:#0a1733;--text:#2c3858;--muted:#6b7c93;--bg:#f5f7fa;--bg-light:#eef3fb;--white:#fff;--radius:16px;--shadow:0 6px 28px rgba(20,56,122,.10);--shadow-hover:0 16px 48px rgba(20,56,122,.20);--maxw:1200px}
header{position:fixed;top:0;left:0;right:0;z-index:999;background:rgba(255,255,255,.85);backdrop-filter:blur(14px);box-shadow:0 1px 0 rgba(20,56,122,.08);transition:all .3s}
nav{max-width:var(--maxw);margin:0 auto;padding:0 32px;height:72px;display:flex;align-items:center;justify-content:space-between}
section{padding:100px 32px}
footer{background:#060e1f;padding:64px 32px 36px;border-top:1px solid rgba(255,255,255,.06)}

#progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--accent),var(--primary-light));z-index:1001;transition:width .1s linear}
header.scrolled{background:rgba(255,255,255,.97);box-shadow:0 4px 24px rgba(10,23,51,.10)}
.logo{display:flex;align-items:center;gap:10px}
.logo-img{height:34px;width:auto;display:block;flex-shrink:0}
.logo-accent{display:inline-block;width:3px;height:24px;background:linear-gradient(180deg,var(--primary),var(--accent));border-radius:3px;flex-shrink:0}
.logo-text{font-size:16px;font-weight:800;color:var(--primary-dark);letter-spacing:1px;line-height:1.2}
.nav-links{display:flex;align-items:center;gap:24px;flex-wrap:nowrap}
.nav-links a{font-size:14.5px;font-weight:500;color:var(--text);transition:color .25s;position:relative;padding:6px 0;flex-shrink:0;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px;transform:scaleX(0);transition:transform .3s;transform-origin:left}
.nav-links a:hover{color:var(--primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-cta{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff!important;padding:13px 28px;border-radius:30px;font-weight:600;font-size:14.5px;line-height:1;display:inline-block;min-width:128px;text-align:center;white-space:nowrap;flex-shrink:0;box-shadow:0 6px 20px rgba(20,56,122,.35);transition:transform .2s,box-shadow .2s}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(20,56,122,.40)}
.nav-cta::after{display:none!important}
.nav-item{position:relative;flex-shrink:0;white-space:nowrap}
.nav-item>a{position:relative}
.nav-item .caret{font-size:9px;transition:transform .25s;display:inline-block;opacity:.55;margin-left:3px;vertical-align:middle}
.nav-item:hover .caret{transform:rotate(180deg)}
.dropdown{position:absolute;top:100%;left:50%;transform:translate(-50%,16px);min-width:640px;background:#fff;border-radius:16px;box-shadow:0 24px 60px rgba(10,23,51,.24);padding:18px;opacity:0;visibility:hidden;transition:all .28s;border:1px solid rgba(20,56,122,.08);z-index:999}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translate(-50%,6px)}
.dropdown::before{content:"";position:absolute;top:-16px;left:0;right:0;height:16px}
.dropdown-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.dropdown a.dd-item{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:11px;transition:background .2s;font-size:inherit;font-weight:inherit;color:inherit;border-bottom:none}
.dropdown a.dd-item::after{display:none}
.dd-item:hover{background:#eef3fb}
.dd-name{display:block;font-size:14.5px;font-weight:700;color:var(--primary-dark);line-height:1.3}
.dd-desc{display:block;font-size:12px;color:#6b7c93;margin-top:1px}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px}
.hamburger span{width:24px;height:2px;background:var(--primary-dark);border-radius:2px;transition:.3s}
.hamburger.open span:nth-child(1){transform:translateY(7px)rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px)rotate(-45deg)}
@media(max-width:1180px){
.nav-links{gap:18px}
.nav-links a{font-size:13.5px}
.nav-cta{padding:11px 22px;min-width:116px;font-size:13.5px}
.logo-text{font-size:15px;letter-spacing:.5px}
}

@media(max-width:1080px){
.nav-links{gap:13px}
.nav-links a{font-size:13px}
.logo-text{font-size:14px}
.nav-cta{padding:10px 16px;min-width:100px;font-size:13px}
}

@media(max-width:1024px){
nav{padding:0 20px;height:64px}
.logo-text{max-width:160px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-links{display:none;position:fixed;top:64px;left:0;right:0;flex-direction:column;background:rgba(255,255,255,.98);backdrop-filter:blur(14px);box-shadow:0 8px 24px rgba(10,23,51,.14);padding:18px 24px 24px;gap:14px;border-top:1px solid rgba(20,56,122,.08);z-index:998}
.nav-links.mobile-open{display:flex}
.nav-links a{font-size:15px;padding:10px 0;width:100%;border-bottom:1px solid rgba(20,56,122,.06)}
.nav-links a::after{display:none}
.nav-item{width:100%}
.nav-item>a{display:flex;width:100%;padding:10px 0;border-bottom:1px solid rgba(20,56,122,.06);font-size:15px}
.nav-item .caret{display:none}
.dropdown{position:static;transform:none;min-width:0;box-shadow:none;border:none;padding:8px 0 0;opacity:1;visibility:visible;border-radius:0;background:transparent}
.dropdown-grid{grid-template-columns:1fr;gap:4px}
.dropdown a.dd-item{padding:10px 12px}
.nav-cta{display:none}
.hamburger{display:flex}
}

.mobile-cta{display:none}
@media(max-width:1024px){
.mobile-cta{display:inline-block;margin-top:6px;text-align:center;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff!important;padding:12px 22px;border-radius:26px;font-weight:600;font-size:15px;align-self:center}
}

.section-header{text-align:center;margin-bottom:64px}
.footer-inner{max-width:var(--maxw);margin:0 auto}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.footer-brand-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand-logo .logo-mark{width:38px;height:38px;font-size:17px}
.footer-brand-name{font-size:17px;font-weight:800;color:#fff}
.footer-desc{font-size:13px;color:rgba(255,255,255,.45);line-height:1.8;max-width:320px}
.footer-brand-img{height:32px;width:auto;display:block;margin-bottom:12px;filter:drop-shadow(0 1px 2px rgba(0,0,0,.3))}
.footer-brand{margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.10)}
.footer-brand .footer-brand-name{font-size:22px;font-weight:800;color:#fff;letter-spacing:1.2px;line-height:1.1}
.footer-brand .footer-brand-sub{font-size:13px;color:rgba(255,255,255,.55);margin-top:7px;letter-spacing:.6px;font-weight:500}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:18px;font-weight:700}
.footer-col a{display:block;font-size:13px;color:rgba(255,255,255,.45);margin-bottom:12px;transition:color .2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-copy{font-size:12px;color:rgba(255,255,255,.3)}
.footer-beian{font-size:12px;color:rgba(255,255,255,.3);display:flex;align-items:center;flex-wrap:wrap;gap:4px}
.footer-beian a{color:rgba(255,255,255,.45);display:inline-flex;align-items:center;text-decoration:none;transition:color .2s}
.footer-beian a:hover{color:var(--accent)}
#toTop{position:fixed;right:28px;bottom:28px;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:998;box-shadow:0 6px 20px rgba(20,56,122,.4);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s,transform .2s}
#toTop.show{opacity:1;visibility:visible}
#toTop:hover{transform:translateY(-3px)}
@media(max-width:980px){
.footer-top{grid-template-columns:1fr}
.nav-links{display:none}
.hamburger{display:flex}
.nav-links.mobile-open{display:flex;flex-direction:column;position:absolute;top:72px;left:0;right:0;background:#fff;padding:20px 32px;gap:18px;box-shadow:0 12px 30px rgba(10,23,51,.12)}
}

@media(max-width:600px){
section{padding:72px 20px}
}

.bubble-stack{position:fixed;right:6px;top:50%;transform:translateY(-50%);z-index:997;display:flex;flex-direction:column;align-items:center;gap:3px}
.bubble-bar{position:static;display:flex;flex-direction:column;background:rgba(255,255,255,.96);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:25px;box-shadow:0 6px 22px rgba(20,56,122,.12),0 2px 6px rgba(20,56,122,.06);padding:2px 0;border:1px solid rgba(20,56,122,.06)}
.bubble-item{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;width:50px;min-height:46px;padding:3px 0;cursor:pointer;color:#5e6e85;text-decoration:none;transition:color .2s;-webkit-tap-highlight-color:transparent;background:transparent}
.bubble-item+.bubble-item{border-top:1px solid rgba(20,56,122,.06)}
.bubble-item:hover{color:var(--primary)}
.bubble-item:active{color:var(--primary)}
.bubble-icon{width:18px;height:18px;margin-bottom:2px;display:block}
.bubble-icon-wx{width:20px}
.bubble-item-text{font-size:10.5px;line-height:1.3;text-align:center;font-weight:500;letter-spacing:0}
.bubble-popup{position:absolute;right:calc(100% + 12px);top:50%;transform:translateY(-50%) translateX(6px);background:#fff;border-radius:16px;box-shadow:0 10px 30px rgba(20,56,122,.16),0 2px 8px rgba(20,56,122,.08);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .25s,transform .25s,visibility .25s;z-index:998;border:1px solid rgba(20,56,122,.05)}
.bubble-popup::after{content:"";position:absolute;left:100%;top:50%;transform:translateY(-50%);border:7px solid transparent;border-left-color:#fff;filter:drop-shadow(2px 0 1px rgba(20,56,122,.06))}
.bubble-item:hover .bubble-popup,.bubble-item.active .bubble-popup{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(-50%) translateX(0)}
.bubble-popup-qr{text-align:center;min-width:185px;padding:14px 16px 18px 16px}
.bubble-popup-qr img{width:110px;height:110px;border-radius:5px;margin:0 auto 10px;display:block;background:#fff;object-fit:contain;transform:rotate(0deg);box-shadow:0 2px 8px rgba(0,0,0,.06)}
.bubble-popup-tip{font-size:12px;color:#1a2a44;font-weight:700;margin-bottom:3px;line-height:1.4}
.bubble-popup-sub{font-size:11px;color:#8a96aa;margin-bottom:10px;line-height:1.5}
.bubble-popup-link{display:inline-block;color:var(--primary);font-size:12px;font-weight:600;text-decoration:none;border-bottom:1.5px solid var(--primary);padding-bottom:1px;transition:opacity .2s}
.bubble-popup-link:hover{opacity:.75}
.bubble-popup-service{min-width:220px;padding:10px 14px}
.bubble-popup-row{display:flex;align-items:flex-start;gap:9px;padding:10px 4px;border-radius:8px;text-decoration:none;color:inherit;transition:background .2s;cursor:pointer}
.bubble-popup-row+.bubble-popup-row{border-top:1px solid #eef1f6}
.bubble-popup-row.clickable:hover{background:rgba(20,56,122,.04)}
.bubble-popup-icon{color:var(--primary);flex-shrink:0;margin-top:1px}
.bubble-popup-icon svg{width:15px;height:15px;display:block}
.bubble-popup-content{flex:1;min-width:0}
.bubble-popup-label{display:block;font-size:11.5px;color:#6b7c93;margin-bottom:3px;line-height:1.3;font-weight:500}
.bubble-popup-value{display:block;font-size:17px;font-weight:700;color:#1a2a44;line-height:1.2;letter-spacing:.3px}
.bubble-popup-sub-text{display:block;font-size:11px;color:#6b7c93;margin-top:3px;line-height:1.5}
.bubble-avatar{position:relative;width:50px;height:50px;border-radius:50%;background:linear-gradient(135deg,#8b5cf6,#6366f1);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 6px 18px rgba(99,102,241,.32),0 2px 6px rgba(99,102,241,.16);transition:transform .25s,box-shadow .25s;-webkit-tap-highlight-color:transparent}
.bubble-avatar:hover{transform:scale(1.08);box-shadow:0 8px 22px rgba(99,102,241,.46),0 2px 8px rgba(99,102,241,.2)}
.bubble-avatar:active{transform:scale(.98)}
.bubble-avatar svg{width:100%;height:100%;display:block;border-radius:50%}
.bubble-avatar img{width:100%;height:100%;object-fit:cover;display:block;border-radius:50%}
.bubble-greeting{position:absolute;right:calc(100% + 12px);top:50%;transform:translateY(-50%) translateX(6px);background:#fff;border-radius:12px;box-shadow:0 8px 24px rgba(20,56,122,.15);padding:8px 12px;white-space:nowrap;font-size:12px;color:#1a2a44;line-height:1.5;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .25s,transform .25s,visibility .25s;z-index:998;border:1px solid rgba(20,56,122,.05)}
.bubble-greeting::after{content:"";position:absolute;left:100%;top:50%;transform:translateY(-50%);border:6px solid transparent;border-left-color:#fff;filter:drop-shadow(2px 0 1px rgba(20,56,122,.06))}
.bubble-avatar:hover .bubble-greeting,.bubble-avatar.active .bubble-greeting{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(-50%) translateX(0)}
@media(max-width:768px){
.bubble-stack{right:4px;transform:translateY(-50%) scale(.92);transform-origin:right center}
}

@media(hover:none){
.bubble-item:hover .bubble-popup,.bubble-avatar:hover .bubble-greeting{opacity:0;visibility:hidden;pointer-events:none}
.bubble-item.active .bubble-popup,.bubble-avatar.active .bubble-greeting{opacity:1;visibility:visible;pointer-events:auto}
.bubble-item:hover{color:#5e6e85}
.bubble-item.active{color:var(--primary)}
}

.ai-chat{position:fixed;right:68px;bottom:24px;z-index:999;width:360px;height:520px;max-height:calc(100vh - 36px);background:#fff;border-radius:16px;box-shadow:0 10px 30px rgba(20,56,122,.15),0 2px 8px rgba(20,56,122,.08);border:1px solid rgba(20,56,122,.05);display:flex;flex-direction:column;overflow:hidden;opacity:0;visibility:hidden;pointer-events:none;transform:translateX(8px) scale(.98);transform-origin:bottom right;transition:opacity .26s ease,transform .26s ease,visibility .26s}
.ai-chat.open{opacity:1;visibility:visible;pointer-events:auto;transform:none}
.ai-chat-head{flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 13px;background:linear-gradient(135deg,#1a3a6b,#203864);color:#fff}
.ai-chat-title{display:flex;align-items:center;gap:8px;min-width:0}
.ai-chat-name{font-size:14px;font-weight:700;letter-spacing:.3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ai-chat-status{width:7px;height:7px;border-radius:50%;background:#2ea043;box-shadow:0 0 0 2px rgba(46,160,67,.28);flex-shrink:0;animation:aiPulse 2s ease-in-out infinite}
.ai-chat-close{width:26px;height:26px;border:none;background:transparent;color:rgba(255,255,255,.78);font-size:18px;line-height:1;cursor:pointer;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s;flex-shrink:0;font-family:inherit;padding:0}
.ai-chat-close:hover{background:rgba(255,255,255,.16);color:#fff}
.ai-chat-body{flex:1 1 auto;overflow-y:auto;overflow-x:hidden;padding:14px;background:#fbfcfe;scrollbar-width:thin;scrollbar-color:rgba(20,56,122,.18) transparent;-webkit-overflow-scrolling:touch}
.ai-chat-body::-webkit-scrollbar{width:5px}
.ai-chat-body::-webkit-scrollbar-thumb{background:rgba(20,56,122,.18);border-radius:3px}
.ai-msg{display:flex;flex-direction:column;align-items:flex-start;margin-bottom:12px;animation:aiFade .28s ease}
.ai-msg.user{align-items:flex-end}
.ai-bubble{max-width:84%;font-size:13.5px;line-height:1.7;padding:9px 12px;border-radius:12px;word-break:break-word;white-space:pre-wrap}
.ai-msg.ai .ai-bubble{background:#f5f7fa;color:#1a3a6b;border-top-left-radius:4px}
.ai-msg.user .ai-bubble{background:#1a3a6b;color:#fff;border-top-right-radius:4px}
.ai-typing{display:inline-flex;gap:4px;align-items:center;height:14px;vertical-align:middle}
.ai-typing i{width:5px;height:5px;border-radius:50%;background:#8a96aa;display:block;animation:aiBounce 1.2s infinite}
.ai-typing i:nth-child(2){animation-delay:.18s}
.ai-typing i:nth-child(3){animation-delay:.36s}
.ai-typing-text{font-size:12px;color:#8a96aa;margin-left:6px;vertical-align:middle}
.ai-quick{display:flex;flex-wrap:wrap;gap:6px;margin:2px 0 12px}
.ai-quick-btn{font-size:12px;line-height:1.4;padding:6px 11px;border-radius:14px;border:1px solid rgba(26,58,107,.18);background:#fff;color:#1a3a6b;cursor:pointer;transition:border-color .2s,background .2s;font-family:inherit;max-width:100%;text-align:left;-webkit-tap-highlight-color:transparent}
.ai-quick-btn:hover{border-color:#1a3a6b;background:rgba(26,58,107,.05)}
.ai-lead{margin-top:8px;max-width:92%;background:#fff;border:1px solid rgba(232,167,53,.45);border-radius:12px;padding:11px 12px;box-shadow:0 4px 14px rgba(20,56,122,.06)}
.ai-lead-tip{font-size:13px;color:#1a2a44;font-weight:600;line-height:1.6;margin-bottom:9px}
.ai-lead-btn{display:inline-block;background:linear-gradient(135deg,#e8a735,#f0b94e);color:#2a1a00;font-size:12px;font-weight:700;padding:7px 14px;border-radius:14px;text-decoration:none;border:none;cursor:pointer;font-family:inherit;transition:opacity .2s,transform .2s}
.ai-lead-btn:hover{opacity:.92;transform:translateY(-1px)}
.ai-chat-foot{flex:0 0 auto;border-top:1px solid #eef1f6;background:#fff;padding:9px 10px 8px}
.ai-suggests{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:8px}
.ai-suggests:empty{display:none}
.ai-input-row{display:flex;align-items:flex-end;gap:8px}
.ai-input{flex:1 1 auto;min-width:0;resize:none;border:1px solid #e3e9f2;background:#f8fafc;border-radius:12px;padding:8px 11px;font-size:13.5px;line-height:1.6;color:#1a2a44;height:36px;max-height:80px;overflow-y:auto;font-family:inherit;transition:border-color .2s,background .2s}
.ai-input:focus{outline:none;border-color:#1a3a6b;background:#fff}
.ai-input::placeholder{color:#9aa7b8;font-size:12.5px}
.ai-send{flex:0 0 auto;width:34px;height:34px;border-radius:10px;border:none;background:linear-gradient(135deg,#1a3a6b,#203864);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:opacity .2s,transform .2s;padding:0}
.ai-send:hover{opacity:.9}
.ai-send:disabled{opacity:.45;cursor:not-allowed}
.ai-send svg{width:16px;height:16px}
.ai-foot-note{font-size:10.5px;color:#a3aec0;text-align:center;margin-top:7px;line-height:1.4}
.bubble-stack.chat-open .bubble-greeting{opacity:0!important;visibility:hidden!important;pointer-events:none!important}
@media(max-width:768px){
.ai-chat{left:0;right:0!important;bottom:0!important;top:auto;width:100%;height:70vh;max-height:70vh;border-radius:16px 16px 0 0;transform:translateY(100%);transform-origin:bottom center;box-shadow:0 -10px 30px rgba(20,56,122,.15)}
.ai-chat.open{transform:translateY(0)}
.ai-chat-body{padding:12px}
.ai-bubble{max-width:88%}
.ai-chat-head{padding:12px 14px}
.ai-lead{max-width:100%}
}

@media(max-width:600px){
nav{padding:0 14px}
.logo-text{display:none}
.mobile-cta{margin-top:0;padding:10px 16px;font-size:13.5px;border-radius:22px;white-space:nowrap}
}