/* ============================================================
   ahacyb-layout.css —— 全站公共布局样式
   由 head.html（导航栏）与 foot.html（AI客服 + 页脚）的内联样式合并而成。
   原先这两段共约 20KB，内联在每页 HTML 中，浏览器无法跨页缓存。
   外链后首次下载一次，后续全站命中缓存。
   生成时间：2026-09-06
   ============================================================ */

/* ===== 来自 head.html：导航栏 ===== */
.nav{background:#fff;border-bottom:1px solid #e5e7eb;position:relative;z-index:100}

/* ---- 修复1：三列 grid，菜单严格居中 ---- */
.header-inner{
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
    display:grid;
    grid-template-columns:1fr auto 1fr;   /* 左右各占 1fr，中间自适应 */
    align-items:center;
    min-height:70px;
    gap:20px;
}
.header-logo{justify-self:start;flex-shrink:0}
.header-logo a{display:block;line-height:0}
.header-logo img{height:50px;width:auto;display:block}

.header-menu{justify-self:center;min-width:0}
.header-menu .menu{display:flex;list-style:none;margin:0;padding:0}
.header-menu .menu>li{position:relative;padding:0 16px}
.header-menu .menu>li>a{display:block;padding:24px 0;font-size:15px;font-weight:500;color:#333;text-decoration:none;transition:color .2s;white-space:nowrap}
.header-menu .menu>li>a:hover{color:#1a5fb4}

/* ---- 修复2：二级菜单左对齐父项，避免居中偏移 ---- */
.header-menu .sub-menu{
    position:absolute;top:100%;left:0;
    min-width:200px;background:#fff;border-radius:8px;
    box-shadow:0 12px 35px rgba(0,0,0,.12);padding:8px 0;list-style:none;
    z-index:999;border:1px solid rgba(0,0,0,.04);
    opacity:0;visibility:hidden;pointer-events:none;
    transform:translateY(8px);
    transition:opacity .25s,transform .25s,visibility .25s;
}
.header-menu li:hover>.sub-menu{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
/* 最后一个一级菜单的子菜单右对齐，防止顶出屏幕 */
.header-menu .menu>li:last-child>.sub-menu{left:auto;right:0}

.header-menu .sub-menu li{position:relative}
.header-menu .sub-menu li a{display:flex;justify-content:space-between;align-items:center;padding:10px 20px;font-size:14px;color:#444;text-decoration:none;border-bottom:1px solid #f5f5f5;transition:color .2s,background .2s;white-space:nowrap}
.header-menu .sub-menu li:last-child a{border-bottom:none}
.header-menu .sub-menu li a:hover{color:#1a5fb4;background:#f8faff}
.header-menu .sub-menu li a::after{content:"›";font-size:16px;color:#bbb;margin-left:8px}
.header-menu .sub-menu li a:only-child::after{content:none}

/* 三级菜单：向右展开 */
.header-menu .sub-menu .sub-menu{top:-8px;left:100%;right:auto;transform:translateX(5px);margin-left:0}
.header-menu .sub-menu li:hover>.sub-menu{transform:translateX(0)}
.header-menu .sub-menu .sub-menu li a{font-size:13px;padding:8px 18px}
.header-menu .sub-menu .sub-menu li a::after{content:none}

/* ---- 修复3：右侧控件右对齐，间距统一 ---- */
.header-right{justify-self:end;display:flex;align-items:center;gap:14px;flex-shrink:0}
.header-search form{display:flex;align-items:center;border:1px solid #d1d5db;border-radius:20px;overflow:hidden;background:#f9fafb;transition:border-color .2s,box-shadow .2s}
.header-search form:focus-within{border-color:#1a5fb4;box-shadow:0 0 0 3px rgba(26,95,180,.08);background:#fff}
.header-search input[type="text"]{border:none;background:transparent;padding:7px 12px 7px 14px;font-size:13px;color:#333;outline:none;width:130px;transition:width .3s}
.header-search input[type="text"]::placeholder{color:#9ca3af}
.header-search input[type="text"]:focus{width:170px}
.header-search button{border:none;background:transparent;padding:7px 12px;cursor:pointer;color:#6b7280;font-size:13px}
.header-search button:hover{color:#1a5fb4}

/* ---- 以下多语言下拉样式保持不变 ---- */
.language-switcher{position:relative}
.lang-btn{background:#f3f4f6;border:1px solid #e5e7eb;font-size:13px;color:#374151;cursor:pointer;padding:7px 14px;display:flex;align-items:center;gap:5px;border-radius:20px;transition:all .2s;white-space:nowrap}
.lang-btn:hover{background:#e5e7eb}
.lang-btn .arrow{font-size:10px;transition:transform .2s;color:#9ca3af}
.lang-btn.open .arrow{transform:rotate(180deg)}
.lang-dropdown{display:none;position:absolute;top:calc(100% + 6px);right:0;background:#fff;border-radius:8px;box-shadow:0 8px 25px rgba(0,0,0,.12);padding:6px 0;min-width:140px;list-style:none;z-index:1000;border:1px solid rgba(0,0,0,.06)}
.lang-dropdown.open{display:block}
.lang-dropdown li a{display:block;padding:8px 18px;font-size:13px;color:#444;text-decoration:none;cursor:pointer;transition:background .15s}
.lang-dropdown li a:hover{background:#f0f7ff;color:#1a5fb4}
.lang-dropdown li a.active{background:#e8f0fe;color:#1a5fb4;font-weight:500}

#mobile{display:none}
#mobileOverlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.45);z-index:998;opacity:0;transition:opacity .3s}
#mobileOverlay.open{display:block;opacity:1}

@media(max-width:1024px){
.header-menu .menu>li{padding:0 10px}
.header-menu .menu>li>a{font-size:14px;padding:22px 0}
.header-search input[type="text"]{width:100px}
.header-search input[type="text"]:focus{width:130px}
}

@media(max-width:768px){
.header-inner{min-height:56px;padding:0 15px;grid-template-columns:1fr auto;gap:0}
.header-logo img{height:40px}
.header-menu,.header-right{display:none}
#mobile{display:block}
#menu-on{position:fixed;top:14px;right:15px;width:28px;height:22px;cursor:pointer;z-index:1001;
    display:flex;flex-direction:column;justify-content:space-between;
    /* 由 div 改为 button 后的默认样式重置 */
    border:none;background:none;padding:0;margin:0;-webkit-appearance:none;appearance:none}
#menu-on span{display:block;height:2.5px;width:100%;background:#333;border-radius:2px;transition:all .3s}
#menu-on.active span:nth-child(1){transform:rotate(45deg) translate(6px,7px)}
#menu-on.active span:nth-child(2){opacity:0}
#menu-on.active span:nth-child(3){transform:rotate(-45deg) translate(6px,-7px)}
.menu-content{display:block;position:fixed;top:0;right:0;width:300px;max-width:85vw;height:100vh;background:#fff;z-index:1000;transform:translateX(100%);transition:transform .35s cubic-bezier(.4,0,.2,1);overflow-y:auto;box-shadow:-4px 0 25px rgba(0,0,0,.15)}
.menu-content.open{transform:translateX(0)}
#mobile .menu-list h3,#mobile .mob-search h3,#mobile #menu-off h3{padding:16px 20px;margin:0;font-size:15px;color:#333;border-bottom:1px solid #eee;font-weight:500}
#mobile #menu-off{cursor:pointer}
#mobile #menu-off h3{color:#dc2626;border-top:1px solid #eee;text-align:center}
#mobile #menu-menu-1{list-style:none;margin:0;padding:0}
#mobile #menu-menu-1>li{border-bottom:1px solid #f0f0f0}
#mobile .item-row{display:flex;align-items:center;justify-content:space-between;padding:0 20px}
#mobile .item-row>a{flex:1;padding:14px 0;color:#333;text-decoration:none;font-size:15px;display:block}
#mobile .sub-toggle{background:none;border:none;cursor:pointer;padding:10px;color:#666;font-size:12px;line-height:1;display:flex;align-items:center}
#mobile .sub-toggle .arrow-icon{display:inline-block;transition:transform .2s;font-style:normal}
#mobile .sub-toggle[aria-expanded="true"] .arrow-icon{transform:rotate(180deg)}
#mobile .sub-menu{display:none;width:100%;padding-left:15px;list-style:none;margin:0;background:#fafafa}
#mobile .sub-menu.open{display:block}
#mobile .sub-menu li{border-bottom:1px solid #f0f0f0}
#mobile .sub-menu li:last-child{border-bottom:none}
#mobile .sub-menu .item-row>a{font-size:14px;padding:12px 0}
#mobile .sub-menu .sub-menu{background:#f5f5f5}
#mobile .sub-menu .sub-menu .item-row>a{font-size:13px;padding:10px 0}
#mobile .mob-search{padding:15px 20px}
#mobile .mob-search form{display:flex;gap:8px}
#mobile .mob-search input[type="text"]{flex:1;padding:10px 12px;border:1px solid #d1d5db;border-radius:6px;font-size:14px}
#mobile .mob-search input[type="submit"]{width:40px;height:40px;border:none;background:#1a5fb4 url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='white' viewBox='0 0 16 16'%3E%3Cpath d='M11.742 10.344a6.5 6.5 0 1 0-1.397 1.398h-.001c.03.04.062.078.098.115l3.85 3.85a1 1 0 0 0 1.415-1.414l-3.85-3.85a1.007 1.007 0 0 0-.115-.1zM12 6.5a5.5 5.5 0 1 1-11 0 5.5 5.5 0 0 1 11 0z'/%3E%3C/svg%3E") no-repeat center;border-radius:6px;cursor:pointer}
.mobile-lang-item{padding:15px 20px;border-top:1px solid #eee;margin-top:5px}
.mobile-lang-item .lang-label{display:block;font-weight:500;color:#555;font-size:14px;margin-bottom:10px}
.mobile-lang-list{display:flex;flex-wrap:wrap;gap:8px}
.mobile-lang-list a{color:#1a5fb4;text-decoration:none;font-size:14px;padding:5px 12px;border-radius:20px;background:#f5f5f5;transition:all .2s;cursor:pointer;border:1px solid transparent}
.mobile-lang-list a:hover,.mobile-lang-list a.active{background:#1a5fb4;color:#fff}
}

/* ===== 来自 foot.html：AI客服 + 页脚 + 返回顶部 ===== */
/* ========== 科技蓝主题色 ========== */
:root {
  --primary-blue: #0066ff;
  --dark-blue: #0052cc;
  --light-blue: #3399ff;
  --electric-blue: #00aaff;
  --gradient-blue: linear-gradient(135deg, #0066ff 0%, #00aaff 100%);
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-light: #94a3b8;
  --background-light: #f8fafc;
  --white: #ffffff;
  --shadow-light: 0 4px 20px rgba(0, 102, 255, 0.08);
  --shadow-medium: 0 8px 30px rgba(0, 102, 255, 0.12);
}

/* ========== AI聊天客服悬浮按钮 ========== */
.ai-chat-float {
  position: fixed; bottom: 160px; right: 30px; z-index: 9999;
}
@media (max-width: 768px) { .ai-chat-float { bottom: 150px; right: 20px; } }
.ai-chat-btn {
  width: 60px; height: 60px; border-radius: 50%;
  background: var(--gradient-blue); border: 2px solid var(--white);
  color: white; cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: all 0.3s; box-shadow: var(--shadow-medium); animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0,102,255,0.4); }
  70% { box-shadow: 0 0 0 15px rgba(0,102,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(0,102,255,0); }
}
.ai-chat-btn:hover { transform: scale(1.1); box-shadow: 0 12px 35px rgba(0,102,255,0.25); }
@media (max-width: 768px) { .ai-chat-btn { width: 50px; height: 50px; } }

/* ========== AI聊天窗口 ========== */
.ai-chat-container {
  position: fixed; bottom: 230px; right: 30px; width: 380px; height: 500px;
  background: white; border-radius: 16px; box-shadow: 0 10px 40px rgba(0,0,0,0.15);
  z-index: 10000; display: none; flex-direction: column; overflow: hidden;
}
.ai-chat-container.active { display: flex; }
@media (max-width: 768px) {
  .ai-chat-container { width: calc(100% - 40px); height: 70vh; bottom: 220px; right: 20px; left: 20px; }
}
.ai-chat-header { background: var(--gradient-blue); color: white; padding: 15px 20px; display: flex; align-items: center; justify-content: space-between; }
.ai-chat-header h4 { margin: 0; font-size: 16px; font-weight: 600; display: flex; align-items: center; gap: 10px; }
.ai-avatar { width: 32px; height: 32px; border-radius: 50%; background: rgba(255,255,255,0.2); display: flex; align-items: center; justify-content: center; font-weight: bold; }
.ai-status { font-size: 12px; opacity: 0.9; margin-top: 2px; }
.ai-chat-close { background: rgba(255,255,255,0.2); border: none; color: white; width: 30px; height: 30px; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.3s; }
.ai-chat-close:hover { background: rgba(255,255,255,0.3); transform: rotate(90deg); }
.ai-chat-messages { flex: 1; padding: 20px; overflow-y: auto; background: #f8fafc; display: flex; flex-direction: column; gap: 15px; }
.message { max-width: 80%; padding: 12px 16px; border-radius: 18px; line-height: 1.5; word-break: break-word; animation: messageSlide 0.3s ease; }
@keyframes messageSlide { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.message.ai { align-self: flex-start; background: white; border: 1px solid rgba(0,102,255,0.1); border-bottom-left-radius: 4px; box-shadow: 0 2px 8px rgba(0,102,255,0.05); }
.message.user { align-self: flex-end; background: var(--gradient-blue); color: white; border-bottom-right-radius: 4px; }
.message-time { font-size: 10px; opacity: 0.7; margin-top: 4px; text-align: right; }
.ai-typing { display: flex; align-items: center; gap: 5px; padding: 12px 16px; background: white; border-radius: 18px; border: 1px solid rgba(0,102,255,0.1); align-self: flex-start; max-width: 70px; }
.typing-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary-blue); animation: typing 1.4s infinite ease-in-out; }
.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }
@keyframes typing { 0%,80%,100% { transform: scale(0.8); opacity: 0.5; } 40% { transform: scale(1); opacity: 1; } }
.ai-chat-input { padding: 15px 20px; border-top: 1px solid #eee; background: white; display: flex; gap: 10px; }
.ai-chat-input input { flex: 1; padding: 12px 16px; border: 1px solid #ddd; border-radius: 24px; font-size: 14px; outline: none; transition: all 0.3s; }
.ai-chat-input input:focus { border-color: var(--primary-blue); box-shadow: 0 0 0 3px rgba(0,102,255,0.1); }
.ai-send-btn { width: 44px; height: 44px; border-radius: 50%; background: var(--gradient-blue); border: none; color: white; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.3s; }
.ai-send-btn:hover { transform: scale(1.05); background: linear-gradient(135deg, #0052cc 0%, #0088cc 100%); }
.ai-send-btn:disabled { background: #ccc; cursor: not-allowed; transform: none; }
.ai-quick-questions { padding: 15px 20px; background: white; border-top: 1px solid #eee; }
.ai-quick-questions h5 { margin: 0 0 10px 0; font-size: 13px; color: #666; font-weight: 500; }
.quick-buttons { display: flex; flex-wrap: wrap; gap: 8px; }
.quick-btn { padding: 6px 12px; background: rgba(0,102,255,0.05); border: 1px solid rgba(0,102,255,0.15); border-radius: 16px; font-size: 12px; color: #666; cursor: pointer; transition: all 0.3s; white-space: nowrap; }
.quick-btn:hover { background: rgba(0,102,255,0.1); color: var(--primary-blue); transform: translateY(-2px); }

/* ========== 返回顶部按钮 ========== */
.back-to-top { position: fixed; bottom: 100px; right: 30px; z-index: 9998; opacity: 0; visibility: hidden; transition: all 0.3s; cursor: pointer; }
.back-to-top.visible { opacity: 1; visibility: visible; }
@media (max-width: 768px) { .back-to-top { bottom: 90px; right: 20px; } }
.back-top-btn { width: 50px; height: 50px; border-radius: 50%; background: var(--gradient-blue); border: 2px solid white; color: white; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.3s; box-shadow: var(--shadow-medium); }
.back-top-btn:hover { transform: translateY(-5px); box-shadow: 0 15px 50px rgba(0,102,255,0.15); }
@media (max-width: 768px) { .back-top-btn { width: 44px; height: 44px; } }

/* ========== 页脚主区域 ========== */
.site-footer { background: var(--white); border-top: 1px solid #e2e8f0; }

/* 公司简介区域 - 信任信号网格 */
.company-intro-section {
  max-width: 1200px; margin: 0 auto; padding: 60px 20px 40px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 50px;
}
@media (max-width: 1024px) { .company-intro-section { grid-template-columns: 1fr; gap: 40px; } }
.intro-title { font-size: 28px; font-weight: 700; color: #1e3a5f; margin-bottom: 20px; position: relative; }
.intro-title::after { content: ''; position: absolute; bottom: -5px; left: 0; width: 60px; height: 3px; background: var(--gradient-blue); }
.trust-badge { padding: 6px 14px; background: var(--gradient-blue); color: white; border-radius: 20px; font-size: 13px; font-weight: 500; display: inline-block; margin-right: 8px; margin-bottom: 8px; }
.intro-text { line-height: 1.8; color: var(--text-secondary); margin: 20px 0; }

/* 信任数据卡片 */
.trust-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 20px 0; }
@media (max-width: 768px) { .trust-stats { grid-template-columns: repeat(2, 1fr); } }
.trust-stat-item { text-align: center; padding: 16px 8px; background: #f0f7ff; border-radius: 12px; border: 1px solid #bfdbfe; }
.trust-stat-item .stat-num { font-size: 1.5rem; font-weight: 700; color: #0a56a5; }
.trust-stat-item .stat-label { font-size: 0.75rem; color: #64748b; margin-top: 4px; }

/* 联系方式卡片 */
.contact-card { display: flex; gap: 16px; padding: 16px; background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px; margin-bottom: 12px; transition: all 0.3s; }
.contact-card:hover { background: #f0f7ff; transform: translateY(-2px); box-shadow: var(--shadow-light); }
.contact-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--gradient-blue); display: flex; align-items: center; justify-content: center; color: white; flex-shrink: 0; }
.contact-info h4 { margin: 0 0 4px 0; font-size: 0.9rem; color: var(--text-primary); }
.contact-info a, .contact-info p { margin: 0; font-size: 0.85rem; color: var(--text-secondary); text-decoration: none; }
.contact-info a:hover { color: var(--primary-blue); }

/* 页脚导航区域 */
.footer-content-section {
  max-width: 1200px; margin: 0 auto; padding: 40px 20px 60px;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px;
  border-top: 1px solid #e2e8f0;
}
@media (max-width: 1024px) { .footer-content-section { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px) { .footer-content-section { grid-template-columns: 1fr; } }
.footer-logo { margin-bottom: 20px; }
.logo-text { font-size: 22px; font-weight: 700; color: #1e3a5f; display: block; }
.footer-nav h3, .footer-products h3, .footer-subscribe h3 { color: #1e3a5f; font-size: 16px; margin-bottom: 20px; padding-bottom: 12px; border-bottom: 2px solid #bfdbfe; }
.footer-nav-list, .product-list { list-style: none; padding: 0; margin: 0; }
.footer-nav-list li, .product-list li { margin-bottom: 12px; }
.footer-nav-list a, .product-list a { color: var(--text-secondary); text-decoration: none; font-size: 0.9rem; transition: all 0.2s; }
.footer-nav-list a:hover, .product-list a:hover { color: var(--primary-blue); padding-left: 6px; }
.quote-btn-direct {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; background: var(--gradient-blue); color: white;
  text-decoration: none; border-radius: 8px; font-size: 14px; font-weight: 600;
  transition: all 0.3s; width: 100%; margin-bottom: 16px; box-sizing: border-box;
}
.quote-btn-direct:hover { transform: translateY(-2px); box-shadow: var(--shadow-medium); }
.qr-code { text-align: center; padding: 16px; background: #f8fafc; border-radius: 12px; }
.qr-code img { border-radius: 8px; }

/* 页脚底部 */
.footer-bottom {
  background: #1e293b; padding: 20px 0; color: #94a3b8; font-size: 0.85rem;
}
.footer-bottom-content {
  max-width: 1200px; margin: 0 auto; padding: 0 20px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
}
.footer-bottom a { color: #94a3b8; text-decoration: none; }
.footer-bottom a:hover { color: white; }
@media (max-width: 768px) { .footer-bottom-content { flex-direction: column; text-align: center; } }

/* ========== 移动端底部导航 ========== */
.mobile-bottom-nav {
  display: none; position: fixed; bottom: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.98); box-shadow: 0 -4px 20px rgba(0,102,255,0.1);
  z-index: 9995; padding: 8px 0; backdrop-filter: blur(10px);
}
@media (max-width: 768px) { .mobile-bottom-nav { display: flex; } }
.mobile-nav-item { flex: 1; display: flex; flex-direction: column; align-items: center; text-decoration: none; color: #999; padding: 8px 0; background: transparent; border: none; cursor: pointer; }
.mobile-nav-item.active { color: var(--primary-blue); }
.mobile-nav-item span { font-size: 11px; margin-top: 4px; }

/* ========== 360 搜索框 ========== */
#so360 {
    white-space: nowrap;
    margin: 10px 0;
}
#so360 form { margin: 0; padding: 0; }
#so360_keyword {
    width: 200px; height: 28px; line-height: 28px;
    font: 14px arial; padding: 2px 8px; margin-right: 5px;
    border: 2px solid #3EAF0E; outline: 0; vertical-align: middle;
    background: #fff;
}
#so360_submit {
    width: 70px; height: 32px; line-height: 32px; border: 0;
    color: #fff; background: #3FB30E; font: bold 14px arial;
    cursor: pointer; vertical-align: middle;
}
@media (max-width: 768px) {
    #so360_keyword { width: 140px; }
    #so360_submit { width: 60px; }
}

/* Toast提示 */
.toast { position: fixed; top: 20px; right: 20px; padding: 14px 24px; border-radius: 10px; background: var(--gradient-blue); color: white; z-index: 10001; animation: slideIn 0.3s ease; box-shadow: 0 6px 20px rgba(0,0,0,0.15); max-width: 300px; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideOut { from { transform: translateX(0); opacity: 1; } to { transform: translateX(100%); opacity: 0; } }