:root{
  --primary:#1559c4;
  --primary-dark:#0b3f8f;
  --primary-light:#eaf1ff;
  --accent:#0ea5a4;
  --price:#e11d48;
  --text:#1f2937;
  --muted:#6b7280;
  --bg:#f6f8fb;
  --line:#e5e7eb;
  --radius:14px;
  --shadow:0 6px 24px rgba(20,83,196,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:#fff;line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.container{max-width:1160px;margin:0 auto;padding:0 20px}
.narrow{max-width:820px}
.center-text{text-align:center}
.mt{margin-top:36px}
.muted{color:var(--muted);font-size:13px}

/* topbar */
.topbar{background:var(--primary-dark);color:#dbe7ff;font-size:13px}
.topbar-inner{display:flex;justify-content:space-between;padding:8px 20px;max-width:1160px;margin:0 auto}
.topbar-right b{color:#fff}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100px}
.logo{display:flex;align-items:center;gap:14px}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-weight:800;border-radius:9px;letter-spacing:1px}
.logo-text{display:flex;flex-direction:column;font-weight:700;font-size:30px;line-height:1.3}
.logo-text small{font-weight:400;font-size:13px;margin-top:5px;color:var(--muted)}
.main-nav{display:flex;gap:26px}
.main-nav a{font-size:15px;color:var(--text);padding:6px 0;position:relative}
.main-nav a:hover,.main-nav a.active{color:var(--primary)}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;background:var(--primary);border-radius:2px}
.header-actions{display:flex;align-items:center;gap:14px}
.cart-btn{display:inline-flex;align-items:center;gap:6px;background:var(--primary-light);color:var(--primary);padding:8px 14px;border-radius:999px;font-size:14px;font-weight:600}
.cart-count{background:var(--price);color:#fff;border-radius:999px;min-width:18px;height:18px;display:inline-flex;align-items:center;justify-content:center;font-size:12px;padding:0 5px}
.menu-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--primary)}
.mobile-nav{display:none;flex-direction:column;background:#fff;border-bottom:1px solid var(--line)}
.mobile-nav a{padding:12px 20px;border-top:1px solid var(--line);font-size:15px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 22px;border-radius:10px;font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;transition:.15s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:var(--primary-light)}
.btn-lg{padding:14px 28px;font-size:16px}
.btn-block{width:100%}

/* hero */
.hero{position:relative;background:linear-gradient(135deg,#0b3f8f 0%,#1559c4 55%,#0ea5a4 100%);color:#fff;padding:64px 0 72px;overflow:hidden}
.hero-video{position:absolute;top:50%;left:50%;min-width:100%;min-height:100%;width:auto;height:auto;transform:translate(-50%,-50%);object-fit:cover;z-index:0}
.hero-video-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,63,143,.88) 0%,rgba(21,89,196,.82) 55%,rgba(14,165,164,.76) 100%);z-index:1}
.hero-inner{position:relative;z-index:2;display:flex;align-items:center;gap:40px}
.hero-text{flex:1}
.hero-tag{display:inline-block;background:rgba(255,255,255,.18);padding:5px 14px;border-radius:999px;font-size:13px;margin-bottom:16px}
.hero h1{font-size:40px;line-height:1.25;margin-bottom:16px;font-weight:800}
.hero p{font-size:17px;opacity:.92;margin-bottom:24px;max-width:520px}
.hero-actions{display:flex;gap:14px;margin-bottom:32px}
.hero .btn-outline{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);color:#fff}
.hero .btn-outline:hover{background:rgba(255,255,255,.22)}
.hero-stats{display:flex;gap:36px}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats b{font-size:26px}
.hero-stats span{font-size:13px;opacity:.85}
.hero-visual{flex:0 0 280px}
.hero-card{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);border-radius:20px;padding:40px;text-align:center;backdrop-filter:blur(4px)}
.hc-icon{font-size:72px}
.hc-title{font-size:22px;font-weight:700;margin-top:8px}
.hc-sub{opacity:.85;font-size:14px}

/* sections */
.section{padding:64px 0}
.section-alt{background:var(--bg)}
.section-head{text-align:center;margin-bottom:40px}
.sec-label{display:inline-block;font-size:12px;letter-spacing:2px;color:var(--primary);font-weight:700;margin-bottom:8px}
.section-head h2{font-size:30px;font-weight:800}
.section-head p{color:var(--muted);margin-top:8px}
.center-btn{text-align:center;margin-top:36px}

/* product grid */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.18s;display:flex;flex-direction:column}
.product-card:hover{box-shadow:var(--shadow);transform:translateY(-3px);border-color:#cfe0ff}
.pc-thumb{position:relative;height:220px;background:#fff;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line)}
.pc-icon{font-size:64px}
.pc-badge{position:absolute;top:10px;left:10px;background:var(--price);color:#fff;font-size:12px;padding:3px 9px;border-radius:999px}
.pc-body{padding:16px;display:flex;flex-direction:column;flex:1}
.pc-cat{font-size:12px;color:var(--muted)}
.pc-name{font-size:16px;font-weight:600;margin:4px 0 8px;line-height:1.35}
.pc-price{margin-bottom:12px}
.pc-price .now{color:var(--price);font-size:20px;font-weight:800}
.pc-price .was{color:var(--muted);text-decoration:line-through;font-size:13px;margin-left:8px}
.pc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px}
.pc-stock{font-size:12px;color:var(--muted)}
.pc-add{background:var(--primary);color:#fff;border:none;border-radius:8px;padding:8px 12px;font-size:13px;cursor:pointer;font-weight:600;white-space:nowrap}
.pc-add:hover{background:var(--primary-dark)}

/* feature */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center}
.feature .f-icon{font-size:36px;margin-bottom:10px}
.feature h3{font-size:17px;margin-bottom:6px}
.feature p{font-size:14px;color:var(--muted)}

/* news */
.news-list{max-width:760px;margin:0 auto}
.news-item{display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);align-items:baseline}
.news-date{color:var(--primary);font-weight:600;font-size:14px;flex:0 0 90px}
.news-full .news-item{flex-direction:column;gap:4px}
.news-full .news-item a{font-size:17px;font-weight:600}
.news-full .news-item p{color:var(--muted);font-size:14px}

/* partners */
.partner-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.partner{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px;text-align:center;font-weight:700;color:#374151;font-size:16px}

/* cta */
.cta{background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;padding:48px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.cta h2{font-size:26px;margin-bottom:6px}
.cta .btn-primary{background:#fff;color:var(--primary)}
.cta .btn-primary:hover{background:#eef4ff}

/* footer */
.site-footer{background:#0f172a;color:#cbd5e1;padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:30px;padding-bottom:32px}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:12px}
.footer-desc{color:#94a3b8;margin-bottom:10px}
.footer-col h4{color:#fff;margin-bottom:14px;font-size:15px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:8px;font-size:14px}
.footer-col a:hover{color:#fff}
.footer-contact li{color:#cbd5e1}
.footer-bottom{border-top:1px solid #1e293b;padding:16px 0;text-align:center;font-size:13px;color:#64748b}

/* page title */
.page-title{font-size:30px;font-weight:800;margin-bottom:28px}
.breadcrumb{color:var(--muted);font-size:14px;margin-bottom:18px}
.breadcrumb a:hover{color:var(--primary)}
.lead{font-size:17px;color:#374151;margin-bottom:28px}

/* product detail */
.product-detail{display:grid;grid-template-columns:380px 1fr;gap:40px}
.pd-thumb{position:relative;height:380px;background:linear-gradient(135deg,#eef4ff,#e0f2fe);border-radius:var(--radius);display:flex;align-items:center;justify-content:center}
.pd-icon{font-size:140px}
.pd-badge{position:absolute;top:16px;left:16px;background:var(--price);color:#fff;padding:4px 12px;border-radius:999px;font-size:13px}
.pd-cat{color:var(--muted);font-size:14px}
.pd-name{font-size:28px;font-weight:800;margin:6px 0 14px}
.pd-price{display:flex;align-items:baseline;gap:12px;margin-bottom:10px}
.pd-price .now{color:var(--price);font-size:30px;font-weight:800}
.pd-price .was{color:var(--muted);text-decoration:line-through}
.pd-unit{color:var(--muted)}
.pd-stock{color:#16a34a;font-size:14px;margin-bottom:16px}
.pd-desc{color:#374151;margin-bottom:18px}
.pd-specs{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:24px}
.spec{background:var(--bg);border-radius:10px;padding:10px 14px;display:flex;flex-direction:column}
.spec span{font-size:12px;color:var(--muted)}
.spec b{font-size:15px}
.pd-buy{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.qty-box{display:flex;align-items:center;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.qty-box button{width:40px;height:44px;background:#fff;border:none;font-size:20px;cursor:pointer;color:var(--text)}
.qty-box input{width:56px;height:44px;border:none;text-align:center;font-size:16px;border-left:1px solid var(--line);border-right:1px solid var(--line)}

/* cart */
.cart-layout{display:grid;grid-template-columns:1fr 360px;gap:28px;align-items:stretch}
.cart-left{min-height:200px}
.cart-item{display:flex;gap:16px;align-items:center;padding:16px;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;background:#fff}
.ci-thumb{flex:0 0 64px;height:64px;border-radius:10px;background:linear-gradient(135deg,#eef4ff,#dbeafe);display:flex;align-items:center;justify-content:center;font-size:32px}
.ci-info{flex:1}
.ci-name{font-weight:600}
.ci-price{color:var(--price);font-weight:700}
.ci-qty{display:flex;align-items:center;gap:8px;margin-top:6px;flex-wrap:wrap}
.ci-qty button{width:28px;height:28px;border:1px solid #d1d5db;border-radius:6px;background:#fff;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.ci-qty input{width:46px;text-align:center;border:1px solid #d1d5db;border-radius:6px;padding:4px}
.ci-remove{white-space:nowrap;min-width:52px;height:28px;padding:0 10px;border:1px solid #ef4444;border-radius:6px;background:#fff;color:#ef4444;cursor:pointer;font-size:14px;display:inline-flex;align-items:center;justify-content:center;margin-left:4px;transition:.15s}
.ci-remove:hover{background:#ef4444;color:#fff}
.cart-right{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;position:sticky;top:88px}
.cart-right h3{margin-bottom:14px}
.summary-row{display:flex;justify-content:space-between;padding:8px 0;font-size:15px}
.summary-row.total{border-top:1px solid var(--line);margin-top:8px;padding-top:14px;font-size:18px}
.summary-row.total b{color:var(--price);font-size:22px}
.checkout-form label{display:block;font-size:14px;margin:12px 0 4px;color:#374151}
.checkout-form input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px}
.pay-method{margin-top:14px}
.pay-label{font-size:14px;color:#374151;display:block;margin-bottom:6px}
.pay-opt{display:block;font-size:14px;margin:6px 0;font-weight:400}
.form-hint{font-size:12px;color:var(--muted);margin-top:10px}
.empty{text-align:center;color:var(--muted);padding:50px 0;font-size:16px}
.empty a{color:var(--primary);font-weight:600}

/* order */
.order-success{text-align:center;margin-bottom:30px}
.os-icon{font-size:56px}
.order-success h1{font-size:26px;margin:8px 0}
.os-status{color:var(--primary);font-weight:600}
.order-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.order-box h3{margin:18px 0 10px}
.order-table{width:100%;border-collapse:collapse;font-size:14px}
.order-table th,.order-table td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left}
.order-table tfoot td{font-size:16px;padding-top:12px}
.order-meta{list-style:none}
.order-meta li{padding:5px 0;color:#374151}
.order-actions{display:flex;gap:12px;margin-top:22px}

/* about */
.about-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin:28px 0}
.about-stats div{background:var(--bg);border-radius:var(--radius);padding:22px;text-align:center}
.about-stats b{font-size:28px;color:var(--primary)}
.about-stats span{font-size:13px;color:var(--muted)}

/* faq */
.faq-list{max-width:760px;margin:0 auto}
.faq-list details{border:1px solid var(--line);border-radius:12px;padding:4px 18px;margin-bottom:12px;background:#fff}
.faq-list summary{font-weight:600;cursor:pointer;padding:14px 0;list-style:none}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::before{content:"+";color:var(--primary);font-weight:800;margin-right:10px}
.faq-list details[open] summary::before{content:"−"}
.faq-list p{padding:0 0 16px;color:#374151}

/* contact */
.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:stretch}
.contact-left{display:flex;flex-direction:column;gap:24px;height:100%}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:0 4px 20px rgba(0,0,0,.06)}
.contact-card-title{font-size:20px;font-weight:700;margin-bottom:20px;color:#111827}
.contact-form{display:flex;flex-direction:column;height:100%}
.contact-info-list .ci-item{display:flex;gap:16px;align-items:flex-start;margin-bottom:18px}
.contact-info-list .ci-item:last-child{margin-bottom:0}
.ci-icon{font-size:24px;line-height:1;width:28px;text-align:center}
.ci-body{display:flex;flex-direction:column;gap:4px}
.ci-body b{font-size:15px;font-weight:600;color:#111827}
.ci-body span{font-size:14px;color:#4b5563;line-height:1.5}
.contact-wechat{text-align:center;flex:1;display:flex;flex-direction:column;justify-content:center;min-height:0}
.wechat-hint{font-size:14px;color:#6b7280;margin-bottom:16px}
.wechat-qr-wrap{display:flex;justify-content:center;align-items:center;padding:12px}
.wechat-qr-img{max-width:180px;max-height:180px;width:100%;height:auto;object-fit:contain;display:block}
.wechat-account{font-size:14px;color:#4b5563;margin-top:14px;word-break:break-all}
.contact-form label{display:block;font-size:14px;margin:14px 0 5px;color:#374151;font-weight:500}
.contact-form input,.contact-form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;background:#f9fafb;transition:.2s}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--primary);background:#fff}
.contact-form .form-lead{font-size:14px;color:#6b7280;margin-bottom:6px}
.contact-form .btn-lg{width:100%;margin-top:10px}

/* toast */
.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);background:#111827;color:#fff;padding:12px 22px;border-radius:999px;font-size:14px;opacity:0;transition:.25s;z-index:100;pointer-events:none}
.toast.show{opacity:1;bottom:40px}

/* admin */
.admin-login{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#0b3f8f,#1559c4)}
.login-card{background:#fff;border-radius:18px;padding:40px;width:340px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.2)}
.login-card h2{margin-bottom:20px}
.login-card input{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;margin-bottom:14px;font-size:15px}
.login-error{color:#dc2626;font-size:14px;margin-bottom:10px}
.admin-nav{background:#0f172a;color:#fff}
.admin-nav-inner{max-width:1160px;margin:0 auto;padding:0 20px;height:60px;display:flex;align-items:center;justify-content:space-between}
.admin-brand{display:flex;align-items:center;gap:10px;font-weight:700}
.admin-nav nav{display:flex;gap:18px}
.admin-nav nav a{color:#cbd5e1;font-size:14px;padding:6px 0}
.admin-nav nav a.active,.admin-nav nav a:hover{color:#fff}
.admin-wrap{padding:32px 20px 60px}
.admin-title{font-size:26px;font-weight:800;margin-bottom:20px}
.admin-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.admin-sub{font-size:20px;font-weight:700;margin:30px 0 14px}
.stat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:30px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-align:center}
.stat-card b{display:block;font-size:28px;color:var(--primary)}
.stat-card.warn b{color:#d97706}
.stat-card span{font-size:13px;color:var(--muted)}
.admin-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.admin-table th,.admin-table td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;font-size:14px}
.admin-table th{background:var(--bg);font-weight:600}
.admin-table tr:hover td{background:#fafbff}
.admin-table .low{color:var(--price);font-weight:700}
.ops{display:flex;gap:10px;align-items:center}
.inline-form{display:inline}
.link-btn{background:none;border:none;color:var(--primary);cursor:pointer;font-size:14px}
.badge-status{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600}
.badge-status.active,.badge-status.paid{background:#dcfce7;color:#16a34a}
.badge-status.hidden{background:#e5e7eb;color:#6b7280}
.badge-status.shipped{background:#dbeafe;color:#1d4ed8}
.badge-status.completed{background:#fef3c7;color:#b45309}
.badge-status.pending,.badge-status.cancelled{background:#fee2e2;color:#dc2626}
.order-items small{display:block}
.admin-form label{display:block;font-size:14px;margin:12px 0 4px;color:#374151;font-weight:600}
.admin-form input,.admin-form textarea,.admin-form select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px;font-family:inherit}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-actions{display:flex;gap:12px;margin-top:22px}

/* responsive */
@media (max-width:900px){
  .main-nav,.topbar-right{display:none}
  .menu-toggle{display:block}
  .mobile-nav.open{display:flex}
  .hero-inner{flex-direction:column;text-align:center}
  .hero h1{font-size:30px}
  .hero-stats{justify-content:center;gap:24px}
  .hero-visual{display:none}
  .product-grid,.feature-grid,.partner-grid,.about-stats,.stat-cards{grid-template-columns:repeat(2,1fr)}
  .product-detail{grid-template-columns:1fr}
  .cart-layout{grid-template-columns:1fr}
  .cart-right{position:static}
  .contact-layout{grid-template-columns:1fr}
  .pd-specs{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:520px){
  .product-grid,.feature-grid,.partner-grid,.about-stats,.stat-cards,.form-row,.footer-grid{grid-template-columns:1fr}
  .hero-stats{flex-wrap:wrap;gap:16px}
}

/* 真实产品图片渲染 */
.logo-img{height:75px;width:auto;object-fit:contain;border-radius:8px;background:#fff;padding:3px}

/* 购物车：仅询价提示 + 线下交易指引 */
.cart-notice{background:linear-gradient(135deg,#eaf1ff,#e0f2fe);border:1px solid #cfe0ff;color:#0b3f8f;border-radius:12px;padding:14px 16px;margin-bottom:18px;font-size:13.5px;line-height:1.6}
.cart-notice b{display:inline-block;background:var(--primary);color:#fff;font-size:12px;padding:2px 10px;border-radius:999px;margin-right:8px;vertical-align:middle}
.offline-note{font-size:13px;color:var(--muted);background:var(--bg);border:1px dashed var(--line);border-radius:8px;padding:10px 12px;margin-top:6px}
.offline-guide{background:linear-gradient(135deg,#f0f7ff,#eefcfb);border:1px solid #cfe0ff;border-radius:14px;padding:20px;margin-top:22px}
.offline-guide h4{font-size:17px;margin-bottom:8px;color:var(--primary-dark)}
.offline-guide p{font-size:14px;color:#374151;margin-bottom:10px}
.offline-guide ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.offline-guide li{font-size:14px;color:#1f2937;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 14px}
.offline-guide li b{color:var(--primary-dark)}
.pd-offline-tip{margin-top:16px;font-size:13.5px;color:var(--primary-dark);background:var(--primary-light);border-left:3px solid var(--primary);padding:10px 14px;border-radius:0 8px 8px 0}
.pc-img{width:100%;height:100%;object-fit:contain;display:block;padding:12px;box-sizing:border-box;background:#fff}
.pd-img{width:100%;height:100%;object-fit:contain;display:block;padding:18px;box-sizing:border-box;background:#fff}

/* 商品图片 lightbox 放大 + 缩放/拖拽 */
.pc-img,.pd-img{cursor:zoom-in}
.lightbox-overlay{display:none;position:fixed;inset:0;background:rgba(15,23,42,.88);z-index:9999;flex-direction:column;align-items:center;justify-content:center;padding:20px}
.lightbox-overlay.open{display:flex}
.lightbox-stage{flex:1;display:flex;align-items:center;justify-content:center;overflow:hidden;width:100%;cursor:grab;touch-action:none}
.lightbox-stage.grabbing{cursor:grabbing}
.lightbox-overlay img{max-width:90vw;max-height:85vh;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 25px 80px rgba(0,0,0,.35);transform:translate(var(--lb-tx,0px),var(--lb-ty,0px)) scale(var(--lb-scale,1));transition:transform .18s ease;user-select:none;-webkit-user-drag:none;touch-action:none}
.lightbox-overlay img.no-trans{transition:none}
.lightbox-controls{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:10px;background:rgba(15,23,42,.7);padding:8px 16px;border-radius:999px;backdrop-filter:blur(6px);z-index:10000}
.lightbox-controls button{background:rgba(255,255,255,.15);border:none;color:#fff;width:36px;height:36px;border-radius:50%;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.lightbox-controls button:hover{background:rgba(255,255,255,.3)}
.lightbox-zoomlevel{color:#fff;font-size:14px;min-width:46px;text-align:center;font-variant-numeric:tabular-nums}
.lightbox-close{position:absolute;top:20px;right:28px;background:rgba(255,255,255,.15);border:none;color:#fff;font-size:36px;width:48px;height:48px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px);z-index:10000}
.lightbox-close:hover{background:rgba(255,255,255,.3)}

/* 多语言切换小窗口 */
.lang-switcher{position:fixed;right:20px;bottom:24px;z-index:8888;font-size:14px}
.lang-toggle{display:flex;align-items:center;gap:6px;background:#fff;border:1px solid var(--line);border-radius:50px;padding:10px 16px;box-shadow:0 6px 20px rgba(0,0,0,.12);cursor:pointer;color:var(--text);font-weight:500;transition:.2s}
.lang-toggle:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.15)}
.lang-panel{display:none;position:absolute;right:0;bottom:110%;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.12);overflow:hidden;min-width:320px;max-height:360px;overflow-y:auto}
.lang-switcher.open .lang-panel{display:grid;grid-template-columns:1fr 1fr;gap:2px;padding:6px}
.lang-option{display:flex;align-items:center;gap:8px;padding:10px 12px;border:none;background:#fff;cursor:pointer;color:var(--text);font-size:13px;text-align:left;transition:.15s;border-radius:8px}
.lang-option:hover{background:var(--primary-light);color:var(--primary-dark)}
.lang-option span{font-size:16px}