:root{
  --bg:#f4f6f9; --bg2:#e9edf3; --panel:#ffffff; --panel2:#f7f9fc;
  --line:#e2e7ee; --text:#1f2933; --muted:#69707a;
  --accent:#2f6bff; --accent2:#5b6bf5; --cyan:#0aa2e0;
  --danger:#e0304b; --ok:#16a34a;
  --radius:14px; --shadow:0 8px 30px rgba(30,45,70,.10);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Segoe UI',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  background:linear-gradient(180deg,#f7f9fc 0,#f2f4f8 100%);
  color:var(--text); line-height:1.6; overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4,h5{margin:0 0 .4em;line-height:1.25}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.center{text-align:center}
.mt{margin-top:24px}.mb{margin-bottom:16px}.grow{flex:1}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:96;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;letter-spacing:.5px}
.brand-mark{width:34px;height:34px;display:grid;place-items:center;border-radius:9px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-weight:800}
.brand-logo{height:34px;width:auto;border-radius:8px;object-fit:contain;background:rgba(255,255,255,.06)}
.brand-text small{display:block;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:3px}
.main-nav{display:flex;gap:4px;flex:1}
.main-nav a{padding:8px 14px;border-radius:9px;color:var(--muted);font-weight:500;transition:.2s}
.main-nav a:hover{color:var(--text);background:rgba(47,107,255,.10);transform:translateY(-2px)}
.main-nav a.on{color:var(--accent);background:rgba(47,107,255,.14)}
.nav-right{display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;gap:2px;background:var(--panel);border:1px solid var(--line);border-radius:9px;padding:2px}
.lang-switch a{padding:4px 8px;font-size:12px;border-radius:6px;color:var(--muted)}
.lang-switch a.on{background:var(--accent);color:#fff}
body.dir-rtl .nav-wrap{flex-direction:row}
body.dir-rtl .main-nav{flex-direction:row-reverse}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 18px;border:1px solid transparent;border-radius:10px;background:var(--panel);color:var(--text);font-weight:600;cursor:pointer;transition:.18s;font-size:14px}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn:active{transform:translateY(0) scale(.98)}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff}
.btn-outline{border-color:var(--line);color:var(--muted)}
.btn-outline:hover{border-color:var(--accent);color:#fff}
.btn-danger{background:var(--danger);color:#fff}
.btn-secondary{background:var(--panel2);color:var(--text)}
.btn-block{width:100%;justify-content:center}
.btn-sm{padding:6px 12px;font-size:13px;border-radius:8px}
.btn-lg{padding:14px 26px;font-size:16px}

/* ---------- hero ---------- */
.hero{position:relative;min-height:55vh;display:grid;place-items:center;text-align:center;overflow:hidden;padding:40px 20px}
.hero-bg{position:absolute;inset:0;z-index:0;background:var(--bg2)}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.82),rgba(255,255,255,.55))}
.hero-short{min-height:46vh}
.hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero-content{position:relative;z-index:2;max-width:860px}
.hero-title{font-size:clamp(34px,6vw,64px);font-weight:800;background:linear-gradient(135deg,#1f2933,#2f6bff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-title .accent{background:linear-gradient(135deg,#0aa2e0,#5b6bf5);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:var(--muted);font-size:clamp(16px,2vw,20px);margin-bottom:28px}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- sections ---------- */
.section{padding:56px 0}
.section.top-tight{padding-top:26px}
.section-alt{background:linear-gradient(180deg,rgba(79,124,255,.06),transparent)}
.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:22px}
.section-head.tight{margin-bottom:4px}
.section-head h2{font-size:28px}
.link-view{color:var(--accent);font-weight:600}

/* ---------- grid / cards ---------- */
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.grid-news{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.card:hover{border-color:rgba(120,150,255,.4)}
.card-media{aspect-ratio:16/10;overflow:hidden;position:relative;background:var(--bg2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:.5s}
.hover-lift{transition:.2s;will-change:transform}
.hover-lift:hover{transform:translateY(-6px) scale(1.02);box-shadow:var(--shadow)}
.hover-lift:hover .card-media img{transform:scale(1.08)}
.card-body{padding:16px}
.card-body h4{font-size:16px;margin-bottom:6px}
.card-more{color:var(--accent);font-size:13px}
.img-ph{width:100%;height:100%;background:repeating-linear-gradient(45deg,var(--bg2),var(--bg2) 8px,var(--panel) 8px,var(--panel) 16px);display:grid;place-items:center;color:var(--muted)}
.more-products{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;color:var(--muted);min-height:180px}
.more-products .mp-icon{font-size:42px;line-height:1}
.more-products .mp-title{font-size:20px;font-weight:700;color:var(--accent)}
.more-products .mp-sub{font-size:13px;color:var(--muted)}
.more-products:hover .mp-title{color:var(--accent2)}
.pad{padding:22px}

/* ---------- product detail ---------- */
.product-detail{display:grid;gap:2.5%;grid-template-columns:1fr 1.4fr}
.pd-gallery{padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}
.pd-main{aspect-ratio:1/1;overflow:hidden;border-radius:10px;background:var(--bg2);border:1px solid var(--line)}
.pd-main img,.pd-main video{width:100%;height:100%;object-fit:contain}
.pd-main .pd-media{display:none;width:100%;height:100%;object-fit:contain}
.pd-main .pd-media.active{display:block}
.pd-thumbs{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.pd-thumbs img,.pd-thumbs .vid-thumb{width:70px;height:70px;object-fit:cover;border-radius:8px;border:2px solid var(--line);cursor:pointer;background:var(--bg2)}
.pd-thumbs .vid-thumb{display:inline-grid;place-items:center;color:var(--muted);font-size:12px;padding:0}
.pd-thumbs img:hover,.pd-thumbs img.on,.pd-thumbs .vid-thumb:hover,.pd-thumbs .vid-thumb.on{border-color:var(--accent)}
.pd-thumbs img.on{border-color:var(--accent)}
.pd-info h1{font-size:30px}
.pd-cn{color:var(--muted);font-weight:500}
.pd-price{display:flex;align-items:baseline;gap:6px;color:#e0304b;font-weight:800}
.pd-price-role{font-size:13px;color:#e0304b}
.pd-price-cur{font-size:15px}
.pd-price-num{font-size:30px}
.pd-price-note{color:var(--muted);font-size:13px;margin:4px 0 12px}
.pd-related{margin:14px 0}
.pd-related h4{font-size:15px;margin-bottom:8px}
.rel-wrap{position:relative}
.pd-related-row{display:grid;grid-auto-flow:column;grid-template-rows:repeat(2,auto);gap:8px;overflow-x:auto;padding:2px 4px 6px;-webkit-overflow-scrolling:touch;scroll-behavior:smooth}
.pd-related-row::-webkit-scrollbar{height:6px}
.pd-related-row::-webkit-scrollbar-thumb{background:var(--line);border-radius:6px}
.pd-related-item{width:66px;text-align:center;text-decoration:none}
.pd-related-item img{width:64px;height:64px;aspect-ratio:1/1;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.pd-related-item span{display:block;font-size:11px;color:var(--muted);margin-top:4px;line-height:1.2;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-products{display:flex;flex-direction:column;gap:10px;margin-top:10px}
.hot-product{display:flex;gap:10px;align-items:center;padding:6px;border-radius:8px;border:1px solid var(--line);text-decoration:none}
.hot-product:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.hot-product img{width:56px;height:56px;object-fit:cover;border-radius:6px;flex:none}
.hot-product span{font-size:13px;color:var(--text);line-height:1.3}
.pd-price-sm .pd-price-num{font-size:18px}
.img-sort{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.img-sort .sort-item{position:relative;width:80px;height:80px;cursor:grab}
.img-sort .sort-item img{width:100%;height:100%;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
.img-sort .sort-item .sort-del{position:absolute;top:0;right:0;background:var(--danger);color:#fff;font-style:normal;font-size:12px;padding:1px 5px;border-radius:0 0 0 8px;cursor:pointer}
.img-sort .sort-item.dragging{opacity:.5;border:2px dashed var(--accent)}
.notice-bar{display:flex;align-items:center;gap:12px;margin:-26px 0 12px;padding:9px 18px;border-radius:10px;background:linear-gradient(90deg,#ff8a00,#ffb300,#ffa300,#ff5f2e,#ff8a00);background-size:300% 100%;animation:noticeGrad 8s linear infinite;color:#fff;font-size:16px;font-weight:700;text-decoration:none;box-shadow:var(--shadow);overflow:hidden}
@keyframes noticeGrad{0%{background-position:0 0}100%{background-position:300% 0}}
.notice-marquee{flex:1;min-width:0;overflow:hidden;display:flex;align-items:center}
.notice-text{flex:none;white-space:nowrap;padding-right:2.5em;animation:noticeScroll 22s linear infinite}
@keyframes noticeScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.notice-bar .notice-btn{flex:none;padding:4px 16px;border-radius:8px;background:rgba(255,255,255,.92);color:#ff5f2e;font-size:14px}
.notice-bar:hover{filter:brightness(1.05)}
/* 产品分类区更紧凑 */
.section-head h2{margin-bottom:0}
.filter-bar{margin-bottom:14px}
.cat-sticky{position:sticky;top:64px;z-index:95;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 14px}
.cat-grid{gap:10px}
.cat-card{padding:8px 12px}
.cat-card .cat-icon{width:46px;height:46px;font-size:18px}
.pd-desc{margin:16px 0}
.video-wrap{position:relative}
.video-grid{display:flex;flex-wrap:nowrap;gap:12px;overflow-x:auto;padding:8px 4px 12px;-webkit-overflow-scrolling:touch;scroll-behavior:smooth}
.video-grid video{flex:0 0 190px;width:190px;min-width:190px;aspect-ratio:9/16;border-radius:10px;background:#000;object-fit:cover}
.video-grid::-webkit-scrollbar{height:8px}
.video-grid::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px}
.video-grid .wide,.wide{width:100%;flex:1 1 100%;aspect-ratio:auto;object-fit:contain}
.video-grid.sq-video video{width:min(48vw,420px);flex:0 0 min(48vw,420px);aspect-ratio:1/1;border-radius:10px}

/* ---------- about page ---------- */
.about-banner{position:relative;aspect-ratio:4.5/1;overflow:hidden;background:var(--bg2)}
.about-banner img,.about-banner video{width:100%;height:100%;object-fit:cover}
.about-banner-title{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.about-banner-title h1{color:#fff;font-size:clamp(30px,5vw,52px);font-weight:800;text-shadow:0 4px 20px rgba(0,0,0,.45)}
.about-intro{position:relative;display:grid;gap:26px;grid-template-columns:0.9fr 1.1fr;align-items:stretch;overflow:hidden}
.about-intro-left{padding:12px 0 210px 0;display:flex;flex-direction:column;justify-content:flex-start;min-width:0;overflow:hidden}
.about-intro-sub{color:var(--muted);font-size:15px;letter-spacing:1px;text-transform:uppercase;margin-bottom:4px}
.about-intro-title{font-size:clamp(24px,3.4vw,34px);font-weight:800;margin:0 0 16px}
.about-intro-text{font-size:13px;line-height:1.55;overflow:hidden}
.about-intro-img{position:relative;width:100%;aspect-ratio:1/1;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);background:var(--bg2)}
.about-intro-img img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.about-stats{position:absolute;left:0;bottom:80px;display:flex;width:56%;z-index:2;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.astat{flex:1;min-width:0;padding:12px 8px;text-align:center;border-right:1px solid var(--line)}
.astat:last-child{border-right:none}
.astat b{font-size:clamp(20px,3vw,30px);font-weight:800;color:var(--accent);line-height:1.1}
.astat b span{font-size:13px;font-weight:400;color:var(--muted);margin-left:4px}
.astat i{display:block;font-style:normal;color:var(--muted);font-size:13px;margin-top:4px}
.gallery-wrap{position:relative}
.gallery-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:40px;height:40px;border:none;border-radius:50%;background:rgba(31,41,51,.55);color:#fff;font-size:24px;line-height:1;cursor:pointer;display:grid;place-items:center;transition:.2s}
.gallery-arrow:hover{background:var(--accent)}
.gallery-arrow.prev{left:-12px}
.gallery-arrow.next{right:-12px}
.gallery-row{display:flex;flex-wrap:nowrap;gap:16px;overflow-x:auto;padding-bottom:12px;-webkit-overflow-scrolling:touch;scroll-snap-type:x mandatory;scroll-behavior:smooth}
.gallery-row::-webkit-scrollbar{height:8px}
.gallery-row::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px}
.gallery-item{position:relative;flex:0 0 260px;width:260px;min-width:260px;aspect-ratio:3/2;border-radius:var(--radius);overflow:hidden;background:var(--bg2);box-shadow:var(--shadow);scroll-snap-align:start}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.gallery-item:hover img{transform:scale(1.06)}
.gallery-row-tall .gallery-item{flex-basis:220px;width:220px;min-width:220px;aspect-ratio:3/4}
@media(max-width:768px){
  .about-intro{grid-template-columns:0.9fr 1.1fr}
  .about-intro-img{order:-1}
  .about-stats{position:static;width:100%;margin-top:8px}
  .astat{padding:16px 8px}
  .gallery-item{flex-basis:200px;width:200px;min-width:200px}
  .gallery-arrow.prev{left:-6px}
  .gallery-arrow.next{right:-6px}
}

/* ---------- filters / chips ---------- */
.filter-bar{margin-bottom:26px}
.cats{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.chip{padding:8px 16px;border-radius:20px;border:1px solid var(--line);background:var(--panel);color:var(--muted);font-size:13px;transition:.2s}
.chip:hover{color:#fff}
.chip.on{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border-color:transparent}
.search-box{display:flex;gap:8px}

/* ---------- forms ---------- */
input,select,textarea{width:100%;padding:11px 14px;background:#fff;border:1px solid var(--line);border-radius:10px;color:var(--text);font-size:14px;font-family:inherit;transition:.2s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,124,255,.18)}
.field{margin-bottom:12px}
.field label{display:block;margin-bottom:6px;font-size:13px;color:var(--muted)}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.row>*{flex:1;min-width:160px}
.col{flex:1;min-width:160px}
.check{display:inline-flex;align-items:center;gap:8px;color:var(--muted);margin-top:8px}
.check input{width:auto}
.code-row{display:flex;gap:8px}
.code-row input{flex:1}
.form-msg{margin-top:10px;font-size:13px}
.form-msg.ok{color:var(--ok)}.form-msg.err{color:var(--danger)}
.auth-card{max-width:620px;margin:20px auto}
.publish-card{max-width:760px;margin:0 auto}

/* ---------- buttons hover scale (interactive) ---------- */
.btn,.chip,.card-media img,.lang-switch a{transition:transform .18s ease,box-shadow .18s ease}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.modal-backdrop{position:absolute;inset:0;background:rgba(30,45,70,.35);backdrop-filter:blur(3px)}
.modal-card{position:relative;width:100%;max-width:480px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);max-height:90vh;overflow:auto}
.modal-close{position:absolute;top:14px;right:16px;background:none;border:none;color:var(--muted);font-size:26px;cursor:pointer;line-height:1}
.modal-close:hover{color:#fff}

/* ---------- news ---------- */
.news-list{display:grid;gap:16px}
.news-item{display:grid;grid-template-columns:180px 1fr;gap:16px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.news-cover{height:150px;background:var(--bg2)}
.news-cover img{width:100%;height:100%;object-fit:cover}
.news-body{padding:16px;overflow:hidden}
.news-body h3{margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.news-body time{color:var(--muted);font-size:12px}
.content-prose{max-width:860px}

/* 资讯双栏 + 热点 */
.layout-2col{display:grid;gap:24px;grid-template-columns:1fr 300px}
.col-main{min-width:0}
.col-side .card{position:sticky;top:80px}
.hot-title{font-size:18px;margin-bottom:12px}
.hot-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.hot-list li{display:flex;gap:10px;align-items:flex-start}
.hot-num{flex:none;width:22px;height:22px;display:grid;place-items:center;border-radius:6px;background:var(--panel2);color:var(--muted);font-size:12px;font-weight:700}
.hot-num.top{background:linear-gradient(135deg,var(--danger),#f79);color:#fff}
.hot-list a{color:var(--text);font-size:14px;line-height:1.4}
.hot-list a:hover{color:var(--accent)}
.layout-products{display:grid;gap:20px;grid-template-columns:1fr 4fr;align-items:start}
.layout-products .hot-side{min-width:0}
.layout-products .main-side{min-width:0}
@media(max-width:900px){.layout-products{grid-template-columns:1fr}.layout-products .hot-side{order:-1}}

/* 评论 */
.comment{padding:14px 0;border-bottom:1px solid var(--line)}
.comment-head{display:flex;justify-content:space-between;gap:12px;margin-bottom:6px}
.comment-head b{color:var(--text)}
.comment-head time{color:var(--muted);font-size:12px}
.comment-body{color:var(--muted);line-height:1.6}
.comment-form{margin-top:16px}
.article-cover{margin:-22px -22px 18px;border-bottom:1px solid var(--line);background:var(--panel2);text-align:center}
.article-cover img{width:100%;height:auto;max-height:740px;object-fit:contain;background:var(--panel2)}
.article-video{margin:-22px -22px 18px;background:#000;text-align:center}
.article-video video{display:block;width:100%;max-height:620px}
.article-gallery{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));margin-top:14px}
.article-gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:8px;border:1px solid var(--line)}

/* 右侧悬浮客服/WhatsApp */
.support-fab{position:fixed;right:0;top:42%;z-index:220;width:56px;height:56px}
.support-tab{position:absolute;right:0;top:0;width:56px;height:56px;border:none;border-radius:14px 0 0 14px;background:linear-gradient(160deg,#1f2b4d,#2f6bff 70%,#5b6bf5);color:#fff;font-size:24px;cursor:pointer;box-shadow:-3px 5px 16px rgba(30,45,70,.3);display:grid;place-items:center;position:relative;overflow:hidden;animation:pulseGlow 2.6s ease-in-out infinite;transition:transform .2s ease,opacity .2s ease}
.support-fab.open .support-tab{opacity:0;pointer-events:none}
.support-tab:hover{transform:scale(.9)}
.support-tab::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(255,255,255,.35),transparent 60%)}
@keyframes pulseGlow{0%,100%{box-shadow:-3px 5px 16px rgba(47,107,255,.35)}50%{box-shadow:-3px 5px 26px rgba(47,107,255,.72)}}
.support-panel{position:absolute;right:56px;top:0;width:300px;height:430px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);display:flex;flex-direction:column;overflow:hidden;transform:translateX(110%);opacity:0;pointer-events:none;transition:transform .25s ease,opacity .25s ease}
.support-fab:hover .support-panel,.support-fab.open .support-panel{transform:translateX(0);opacity:1;pointer-events:auto}
.support-head{background:linear-gradient(135deg,#1f2b4d,#2f6bff);color:#fff;padding:11px 12px;font-weight:700;font-size:14px}
.chat-msgs{flex:1;overflow-y:auto;padding:10px;display:flex;flex-direction:column;gap:8px;background:var(--panel2)}
.chat-msgs .m{max-width:82%;padding:7px 9px;border-radius:10px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text)}
.chat-msgs .m.me{align-self:flex-end;background:rgba(5,150,105,.12);border-color:rgba(5,150,105,.3)}
.chat-msgs .m.admin{align-self:flex-start;background:rgba(47,107,255,.12);border-color:rgba(47,107,255,.3)}
.chat-form{display:flex;gap:6px;padding:8px;border-top:1px solid var(--line)}
.chat-form input{flex:1}
.btn-whatsapp{background:#25d366;color:#fff;text-align:center;margin:0 8px 8px}
.btn-whatsapp:hover{filter:brightness(1.06);color:#fff}
@media(max-width:640px){.support-fab{top:auto;bottom:64px}.support-panel{height:max(360px,60vh);right:46px}}

/* 后台客服会话 */
.chat-id{margin-bottom:10px}
.chat-thread{display:flex;flex-direction:column;gap:8px;margin-bottom:10px;max-height:320px;overflow-y:auto}
.bubble{max-width:80%;padding:8px 10px;border-radius:10px;font-size:14px}
.bubble-who{display:block;font-size:11px;color:var(--muted);margin-bottom:2px}
.b-cust{align-self:flex-start;background:rgba(47,107,255,.10);border:1px solid rgba(47,107,255,.22)}
.b-admin{align-self:flex-end;background:rgba(5,150,105,.10);border:1px solid rgba(5,150,105,.22)}

.param-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.param-head h3{margin:0}

/* 个人中心 */
.member-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.member-grid{display:grid;gap:20px;grid-template-columns:1fr 1fr}
.post-row{display:flex;justify-content:space-between;gap:10px;padding:9px 0;border-bottom:1px solid var(--line);align-items:center}
@media(max-width:820px){.member-grid{grid-template-columns:1fr}}

/* 产品详情询盘框（呼吸灯按钮） */
.inq-box{margin-top:18px;padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:var(--shadow)}
.sku-box{margin:14px 0;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--panel2)}
.sku-box h4{font-size:15px;margin-bottom:8px}
.sku-box .table th{width:40%}
.inq-box h4{margin-bottom:12px}
.inq-box textarea{margin-top:8px}
.inq-send{width:100%;margin-top:12px;padding:14px;border:none;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-size:16px;font-weight:700;cursor:pointer;animation:inqPulse 2s ease-in-out infinite;transition:transform .2s}
.inq-send:hover{transform:scale(1.02)}
@keyframes inqPulse{0%,100%{box-shadow:0 0 0 0 rgba(47,107,255,.45)}50%{box-shadow:0 0 0 12px rgba(47,107,255,0)}}
.about-video{position:relative;width:100%;border-radius:var(--radius);overflow:hidden;background:#000;box-shadow:var(--shadow)}
.about-video video{width:100%;display:block;max-height:560px;object-fit:contain}

/* ---------- 移动端菜单（默认隐藏），桌面隐藏汉堡 ---------- */
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:9px;color:var(--text);font-size:20px;line-height:1;padding:8px 12px;cursor:pointer}
.mobile-nav{display:none;flex-direction:column;gap:2px;padding:6px 16px 16px;border-top:1px solid var(--line)}
.mobile-nav a{padding:10px 12px;border-radius:8px;color:var(--muted)}
.mobile-nav a:hover,.mobile-nav a.on{background:rgba(47,107,255,.10);color:var(--text)}
.mobile-nav.open{display:flex}
.mobile-langs{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px;padding-top:8px;border-top:1px solid var(--line)}
.mobile-langs a{padding:5px 10px;border-radius:16px;border:1px solid var(--line);font-size:12px}
.mobile-langs a.on{background:var(--accent);color:#fff;border-color:transparent}

/* ---------- 响应式断点 ---------- */
@media(max-width:1040px){
  .grid-products{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:820px){
  .container{padding:0 14px}
  .section{padding:40px 0}
  .main-nav,.nav-right .lang-dd,.nav-right .nav-account{display:none}
  .nav-toggle{display:inline-block}
  .hero{min-height:52vh}
  .hero-cta{flex-direction:column;align-items:center}
  .grid-products,.grid,.grid-news{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .media-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}
  .cat-grid{gap:16px}.cat-card{min-width:70px}.cat-card .cat-icon{width:70px;height:70px}
  .content-prose{max-width:100%}
  /* 移动端：关键区块单列，避免拥挤 */
  .layout-2col{grid-template-columns:1fr}
  .col-side{order:-1}
  .product-detail{grid-template-columns:1fr}
  .pd-gallery{order:-1}
  .pd-info h1{font-size:22px}
  .pd-price-num{font-size:26px}
  .about-intro{grid-template-columns:1fr}
  .about-intro-img{aspect-ratio:auto;min-height:220px;width:100%}
  .about-stats{position:static;width:100%;margin-top:14px;bottom:auto}
  .cat-sticky{top:52px;padding:8px 10px}
  .notice-bar{font-size:15px;margin:-20px 0 10px;padding:8px 14px}
  .pager{flex-wrap:wrap;gap:4px}
  .pager .page{min-width:34px;height:34px}
  /* 手机：类目不吸附，避免遮挡产品 */
  .cat-sticky{position:static;margin-bottom:12px;top:auto}
  /* 手机：banner 更高，图片显示更多（不再只中间一条） */
  .about-banner{aspect-ratio:16/9}
  .hero-bg img{object-position:center}
  /* 手机：首页 hero 更矮、粒子弱化，减少蓝色背景杂乱 */
  .hero{min-height:44vh;padding:26px 14px}
  .hero-canvas{opacity:.35}
  .hero-title{font-size:clamp(24px,6vw,34px)}
  .hero-sub{font-size:15px}
  /* 后台 */
  .admin-body{flex-direction:column}
  .sidebar{width:100%;height:auto;position:static;padding:14px}
  .sidebar nav a{display:inline-flex;width:auto;margin:2px}
  .sidebar nav{flex-direction:row;flex-wrap:wrap}
  .admin-main{padding:16px 14px}
  .main-content,.admin-main{overflow-x:auto}
  .card{overflow-x:auto}
  /* 表格横向滚动 */
  .table{min-width:640px}
  /* 空态 */
  .bar{flex-direction:column;align-items:flex-start}
  .row>*{min-width:100%}
  .landing-box{max-height:92vh;overflow:auto}
  .landing-langs{flex-direction:row;flex-wrap:wrap}
  .nav-wrap{gap:12px}
}
@media(max-width:520px){
  .grid-products{grid-template-columns:1fr}
  .brand-text small{display:none}
  .hero-title{font-size:32px}
  .footer-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
}
@media(min-width:821px){
  .mobile-nav{display:none !important}
}

/* 圆形呼吸灯"进入网站"按钮 */
.enter-wrap{position:relative;width:128px;height:128px;margin:16px auto 4px}
.enter-circle{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:96px;height:96px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle, #ecdcff 0%, #b79bfa 42%, #7c3aed 100%);color:#3b2a63;font-weight:800;font-size:22px;line-height:1.2;border:none;cursor:pointer;text-align:center;letter-spacing:2px;box-shadow:0 0 20px rgba(124,58,237,.55);transition:transform .2s ease}
.enter-circle:hover{transform:translate(-50%,-50%) scale(1.07)}
.enter-circle:active{transform:translate(-50%,-50%) scale(.96)}
.enter-circle-txt{display:inline-block}
.landing-skip{background:none;border:none;color:var(--muted);cursor:pointer;font-size:13px;margin-top:6px}
.landing-skip:hover{color:#fff}
.landing-answer{min-height:56px}

/* ---------- admin ---------- */
.admin-body{display:flex;min-height:100vh}
.sidebar{width:230px;background:var(--bg2);border-right:1px solid var(--line);padding:20px 14px;position:sticky;top:0;height:100vh;overflow:auto}
.sidebar-brand{margin-bottom:18px}
.sidebar nav{display:flex;flex-direction:column;gap:4px}
.sidebar nav a{padding:10px 14px;border-radius:9px;color:var(--muted);display:flex;justify-content:space-between;align-items:center}
.sidebar nav a:hover{background:rgba(47,107,255,.10);color:var(--text)}
.sidebar nav a.on{background:rgba(47,107,255,.16);color:var(--accent)}
.sidebar nav a.logout{color:var(--danger)}
.badge{background:var(--danger);color:#fff;font-size:11px;border-radius:10px;padding:1px 7px}
.admin-main{flex:1;padding:26px 30px}
.bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;flex-wrap:wrap;gap:12px}
.stats{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));margin-bottom:20px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;text-align:center;display:block;transition:.2s;text-decoration:none;color:inherit}
.stat:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--shadow)}
.stat .num{font-size:34px;font-weight:800;display:block;background:linear-gradient(135deg,var(--cyan),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .num.danger{background:linear-gradient(135deg,var(--danger),#f79);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span:last-child{color:var(--muted);font-size:13px}

/* ---------- table ---------- */
.table{width:100%;border-collapse:collapse}
.table th,.table td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;font-size:14px}
.table th{color:var(--muted);font-weight:600;background:rgba(120,150,255,.06)}
.table tr:hover{background:rgba(120,150,255,.05)}
.table .ops{white-space:nowrap}
.row-new td{background:rgba(240,86,107,.08)}
.card-footer{padding:12px 16px;border-top:1px solid var(--line)}
/* 分页：横向一排 12345 下一页 */
.pagination{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;list-style:none;padding:0;margin:8px 0}
.pagination .page-item{display:inline-flex}
.pagination .page-link{display:inline-flex;align-items:center;justify-content:center;min-width:32px;height:32px;padding:0 10px;border:1px solid var(--line);border-radius:8px;color:var(--text);font-size:14px;transition:.15s}
.pagination .page-link:hover{border-color:var(--accent);color:var(--accent)}
.pagination .page-item.active .page-link{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border-color:transparent}
.pagination .page-item.disabled .page-link{opacity:.45;pointer-events:none}

/* ---------- media grid ---------- */
.media-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
.media-item{background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.media-item img{aspect-ratio:4/3;object-fit:cover;width:100%}
.media-info{font-size:12px;padding:6px 8px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.media-ops{padding:6px 8px;display:flex;gap:6px}
.mini-img{position:relative;display:inline-grid;place-items:center;width:80px;height:80px;margin:4px;border-radius:8px;overflow:hidden;border:1px solid var(--line)}
.mini-img img{width:100%;height:100%;object-fit:cover}
.mini-img i{position:absolute;top:0;right:0;background:var(--danger);color:#fff;font-style:normal;font-size:11px;padding:1px 5px;border-radius:0 0 0 8px}
.about-img-set{display:inline-grid;gap:4px}
.gal-list{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:10px}
.gal-item{position:relative;width:108px;height:108px;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--bg2);cursor:pointer}
.gal-item img{width:100%;height:100%;object-fit:cover}
.gal-item .gal-rm{position:absolute;left:0;right:0;bottom:0;background:rgba(224,48,75,.9);color:#fff;font-size:11px;text-align:center;padding:3px 0;line-height:1}
.gal-item .gal-rm input{vertical-align:middle;margin:0 2px 0 0}

/* 产品编辑：SKU/参数行 + 小预览 + 可删除 */
.sku-row{display:flex;gap:8px;margin-bottom:8px;flex-wrap:wrap;align-items:center}
.sku-row .sku-k{flex:1;min-width:110px}
.sku-row .sku-v{flex:1;min-width:110px}
.thumb{position:relative;display:inline-block;width:96px;height:96px;margin:4px;border-radius:8px;overflow:hidden;border:1px solid var(--line);background:#000}
.thumb img,.thumb video{width:100%;height:100%;object-fit:cover}
.thumb-x{position:absolute;top:0;right:0;background:var(--danger);color:#fff;font-size:14px;line-height:1;padding:2px 6px;border-radius:0 0 0 6px;cursor:pointer}
.preview-video{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- pager / toast ---------- */
.pager{display:flex;gap:6px;justify-content:center;margin-top:24px;flex-wrap:nowrap;align-items:center;overflow-x:auto;padding-bottom:4px}
.page{min-width:38px;height:38px;padding:0 10px;display:grid;place-items:center;border-radius:9px;border:1px solid var(--line);background:var(--panel);color:var(--muted)}
.page.on{background:var(--accent);color:#fff;border-color:transparent}
.login-prompt{color:#e74c3c;font-weight:600;text-decoration:underline}
.login-prompt:hover{color:#c0392b}
.chat-time-tab{display:inline-block;padding:4px 12px;border-radius:8px;border:1px solid var(--line);background:var(--panel);color:var(--muted);margin-right:6px;cursor:pointer;text-decoration:none}
.chat-time-tab.on{background:var(--accent);color:#fff;border-color:transparent}
.pager-jump{display:inline-flex;gap:6px;align-items:center;margin-left:auto}
.pager-jump input.page{width:56px;background:var(--panel)}
.pager-jump button.page{width:auto;padding:0 14px;cursor:pointer}
.toast{position:fixed;bottom:26px;right:26px;background:var(--accent);color:#fff;padding:12px 20px;border-radius:10px;box-shadow:var(--shadow);opacity:0;transform:translateY(12px);transition:.3s;z-index:200;font-weight:600}
.toast.show{opacity:1;transform:none}
.alert{padding:12px 16px;border-radius:10px;margin-bottom:12px;font-size:14px}
.alert-danger{background:rgba(240,86,107,.15);color:#ffb3bd;border:1px solid rgba(240,86,107,.4)}
.alert-success{background:rgba(49,196,141,.15);color:#9fe8cd;border:1px solid rgba(49,196,141,.4)}
.empty{color:var(--muted);text-align:center;padding:30px 0}
.pre{background:var(--bg2);border-radius:10px;padding:14px;white-space:pre-wrap}
.big-404{font-size:80px;background:linear-gradient(135deg,var(--cyan),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.center-full{min-height:100vh;display:grid;place-items:center;padding:20px}
.login-card{max-width:400px;width:100%}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);margin-top:40px;padding:40px 0}
.footer-grid{display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.site-footer h5{color:var(--text);font-size:16px}
.site-footer p{color:var(--muted);font-size:13px}
.contact-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}

@media(max-width:820px){
  .main-nav{display:none}
  .hero{min-height:60vh}
  .news-item{grid-template-columns:1fr}
  .sidebar{width:100%;height:auto;position:static}
  .admin-body{flex-direction:column}
}
/* ---------- 互动落地层 ---------- */
.landing-overlay{position:fixed;inset:0;z-index:300;background:linear-gradient(180deg,#eef1f6 0,#e2e8f2 100%);display:flex;align-items:center;justify-content:center;overflow:hidden}
.landing-overlay[hidden]{display:none}
.landing-scene{position:absolute;inset:0;width:100%;height:100%}
.landing-box{position:relative;z-index:2;max-width:560px;width:92%;text-align:center;padding:20px}
.landing-brand{display:inline-flex;align-items:center;gap:10px;font-size:22px;font-weight:800;margin-bottom:8px}
.landing-brand .brand-text{letter-spacing:.5px}
.landing-title{font-size:clamp(20px,3.4vw,30px);margin-bottom:22px;background:linear-gradient(135deg,#1f2933,#2f6bff);-webkit-background-clip:text;background-clip:text;color:transparent}
.landing-langs{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:22px}
.lang-pill{padding:8px 16px;border-radius:20px;border:1px solid var(--line);background:#fff;color:#1f2933;cursor:pointer;transition:.2s;font-size:13px;font-weight:600;box-shadow:var(--shadow)}
.lang-pill:hover{color:#1f2933;border-color:var(--accent);transform:translateY(-2px)}
.lang-pill.on{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border-color:transparent}
.landing-q{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.landing-q-text{font-size:16px;color:var(--text);margin-bottom:16px;min-height:24px}
.landing-form{display:flex;flex-direction:column;gap:10px}
.landing-input{background:#fff;border:1px solid var(--line);color:var(--text)}
.landing-input::placeholder{color:var(--muted)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--muted)}
.btn-ghost:hover{color:#fff}

/* 语言下拉 */
.lang-dd{position:relative;display:inline-block}
.lang-dd>summary{list-style:none;cursor:pointer;padding:8px 12px;border:1px solid var(--line);border-radius:9px;background:var(--panel);color:var(--text);font-size:13px;user-select:none}
.lang-dd>summary::-webkit-details-marker{display:none}
.lang-list{position:absolute;right:0;top:calc(100%+6px);z-index:60;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:6px;min-width:150px;display:flex;flex-direction:column;gap:2px;box-shadow:var(--shadow)}
.lang-list a{padding:7px 10px;border-radius:6px;color:var(--muted);font-size:13px;text-align:left}
.lang-list a:hover,.lang-list a.on{background:var(--accent);color:#fff}

/* 产品中心：一行三个大图 */
.grid-products{display:grid;gap:22px;grid-template-columns:repeat(3,1fr)}
.grid-products .card-media{aspect-ratio:4/3}
/* 产品分类：卡通图标 + 下方文字 */
.cat-grid{display:flex;gap:26px;justify-content:space-between;align-items:flex-start;flex-wrap:nowrap;margin-bottom:26px;padding:6px 0}
.cat-card{background:transparent;border:none;box-shadow:none;padding:6px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px;min-width:0;flex:1;transition:.2s}
.cat-card:hover{transform:translateY(-2px)}
.cat-card .cat-icon{width:92px;height:92px;display:grid;place-items:center;font-size:46px}
.cat-card .cat-icon img{width:100%;height:100%;object-fit:contain}
.cat-card .cat-name{font-size:13px;color:var(--muted)}
.cat-card.on .cat-name{color:var(--accent);font-weight:700}
.cat-card.on .cat-icon{filter:drop-shadow(0 4px 10px rgba(47,107,255,.25))}

/* ===== 手机端布局（覆盖） ===== */
@media(max-width:820px){
  /* 产品列表：隐藏热点，产品两列 */
  .layout-products{grid-template-columns:1fr}
  .hot-side{display:none}
  .main-side{min-width:0}
  .grid-products{grid-template-columns:repeat(2,1fr);gap:12px}
  .grid-products .card .card-media{aspect-ratio:4/3}
  .grid-products .pd-price-num{font-size:18px}
  /* 分类图标：两行居中 */
  .filter-bar.cat-sticky{position:static;margin-bottom:10px}
  .cat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;justify-content:center}
  .cat-card{min-width:0;width:100%;padding:6px 2px;text-align:center}
  .cat-card .cat-icon{width:46px;height:46px;font-size:18px;margin:0 auto 6px}
  .cat-card .cat-name{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  /* 首页 hero banner 横版缩小 */
  .hero-bg img{object-position:center}
  /* 产品详情：单列，主图方形，缩略/关联/竖版视频 横滑 */
  .product-detail{grid-template-columns:1fr}
  .pd-gallery{order:-1}
  .pd-main{aspect-ratio:1/1}
  .pd-thumbs{display:flex;flex-wrap:nowrap;overflow-x:auto;gap:8px;-webkit-overflow-scrolling:touch}
  .pd-thumbs .img-thumb{flex:0 0 70px;width:70px;height:70px}
  .pd-related-row{display:flex;flex-wrap:nowrap;overflow-x:auto;gap:8px;-webkit-overflow-scrolling:touch}
  .pd-related-item{flex:0 0 76px}
  /* 资讯：去热点，列表左图右文 */
  .layout-2col{grid-template-columns:1fr}
  .col-side,.hot-news-side{display:none}
  .news-item{display:flex;gap:12px;align-items:center}
  .news-item .news-thumb{flex:0 0 96px;min-width:96px}
  /* 首页资讯列表 */
  .grid-news{grid-template-columns:1fr}
}
/* 文件上传按钮（覆盖浏览器原生"选择文件"文字，走 i18n 翻译） */
.upload-btn{display:inline-flex;align-items:center;gap:8px;cursor:pointer;border:1px solid var(--line);border-radius:8px;padding:6px 12px;background:var(--panel);margin-top:4px}
.upload-btn:hover{border-color:var(--accent)}
.upload-btn .upload-label{color:var(--accent);font-weight:600}
.upload-btn .file-picked{font-size:12px;word-break:break-all;max-width:180px}
/* 联系我们：社媒二维码六个一排 */
.social-section{margin-top:20px}
.social-row{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;justify-items:center;margin-bottom:10px}
.social-item{display:flex;flex-direction:column;align-items:center;gap:8px;text-align:center}
.social-item .social-qr{width:100%;max-width:130px;aspect-ratio:1/1;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--panel)}
.social-item .social-qr img{width:100%;height:100%;object-fit:contain;display:block}
.social-item .social-label{font-size:13px;color:var(--muted)}
@media(max-width:820px){.social-row{grid-template-columns:repeat(3,1fr)}}