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/* ===== 方案A . 留白美术馆 设计系统（以 prototypes/styles.css 为最终版） ===== */
:root{
--bg:#FCFCFB;
--surface:#F4F1EB;
--ink:#3A332A;
--muted:#8C8275;
--accent:#B0894E;
--accent-soft:rgba(176,137,78,.12);
--accent-line:rgba(176,137,78,.35);
--success:#0F6E56;
--success-soft:rgba(15,110,86,.14);
--line:rgba(58,51,42,.12);
--line-strong:rgba(58,51,42,.28);
--sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
--serif:"Songti SC","STSong","SimSun",Georgia,"Times New Roman",serif;
--radius:14px;
--radius-lg:20px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
.serif{font-family:var(--serif)}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.muted{color:var(--muted)}
.accent{color:var(--accent)}
/* ---- 导航 ---- */
.nav{position:sticky;top:0;z-index:20;background:rgba(251,248,242,.86);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:flex-start;height:68px;gap:24px}
.brand{display:flex;align-items:center;flex-shrink:0;height:56px;text-decoration:none}
.brand img.logo{height:56px;width:auto;max-width:260px;object-fit:contain;display:block}
.nav-links{display:flex;gap:42px;align-items:center;flex-wrap:wrap;min-width:0;margin-left:48px;flex:1 1 auto}
.nav-search-form{margin-left:auto;flex-shrink:0}
.nav-link{font-size:15px;color:var(--ink);position:relative;padding:6px 0}
.nav-link.active{color:var(--accent)}
.nav-link::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--accent);transition:width .3s ease}
.nav-link:hover::after,.nav-link.active::after{width:100%}
.nav-search-form{
display:flex;align-items:center;
flex-shrink:0;flex-grow:0;
margin-left:auto;
width:300px;height:42px;
border:1px solid var(--accent);
border-radius:999px;
background:#fff;
box-shadow:0 0 0 1px var(--accent-soft);
overflow:hidden
}
.nav-search-form:hover{box-shadow:0 0 0 4px var(--accent-soft)}
.nav-search-form input{
flex:1 1 0%;min-width:0;border:0;outline:0;background:transparent;
font:inherit;font-size:14px;color:var(--ink);letter-spacing:.2px;
padding:0 0 0 20px;height:42px;line-height:42px
}
.nav-search-form input::placeholder{color:var(--muted)}
.nav-search-form input::-webkit-search-cancel-button{-webkit-appearance:none;appearance:none}
.nav-search-form input::-ms-clear{display:none}
.nav-search-form button{
width:42px;height:42px;border:0;background:var(--accent);
color:#fff;cursor:pointer;flex-shrink:0;
display:flex;align-items:center;justify-content:center;
transition:background .2s
}
.nav-search-form button:hover{background:#8A6A39}
.nav-search-form button svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-tool-btn{
width:42px;height:42px;border-radius:50%;border:1px solid var(--accent);background:#fff;color:var(--accent);
display:flex;align-items:center;justify-content:center;flex-shrink:0;
transition:.2s;cursor:pointer;text-decoration:none
}
.nav-tool-btn:hover{background:var(--accent);color:#fff}
.nav-tool-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
/* ---- 按钮 ---- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font-size:14px;font-weight:500;cursor:pointer;border:1px solid transparent;transition:.2s}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#8A6A39}
.btn-ghost{border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-sm{padding:8px 16px;font-size:13px}
/* ---- Hero 全屏轮播大图 ---- */
.hero-carousel{position:relative;width:100%;height:clamp(520px,62vh,740px);overflow:hidden;background:#3A332A}
.hero-carousel .slides{position:absolute;inset:0}
.hero-carousel .slide{position:absolute;inset:0;opacity:0;transform:scale(1.06);transition:opacity 1s ease,transform 6s ease;display:flex;align-items:center;background-size:cover;background-position:center;background-repeat:no-repeat}
.hero-carousel .slide.active{opacity:1;transform:scale(1);z-index:2}
.hero-carousel .slide .cap{position:relative;z-index:3;max-width:1200px;margin:0 auto;padding:0 24px;width:100%;color:#fff}
.hero-carousel .slide .cap .eyebrow{color:rgba(255,255,255,.88);text-shadow:0 1px 8px rgba(0,0,0,.35);font-weight:600;letter-spacing:1px;font-family:var(--sans)}
.hero-carousel .slide .cap h1{font-size:clamp(30px,4.4vw,54px);line-height:1.25;font-weight:800;letter-spacing:-.5px;font-family:"Microsoft YaHei","PingFang SC","Heiti SC","SimHei",sans-serif;text-shadow:0 2px 18px rgba(0,0,0,.35);margin-bottom:30px}
.hero-carousel .slide .cap p{font-size:clamp(15px,1.6vw,18px);line-height:1.8;margin-top:0;text-shadow:0 1px 8px rgba(0,0,0,.35)}
.hero-carousel .slide .cap .eyebrow:empty{display:none}
.hero-carousel .slide .cap .hero-actions{margin-top:28px}
.hero-carousel .slide .cap .btn-ghost{border-color:rgba(255,255,255,.7);color:#fff}
.hero-carousel .slide .cap .btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.14)}
.hero-carousel .slide::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.45),rgba(0,0,0,.15) 55%,rgba(0,0,0,.04));z-index:1}
.slide.s1{background-image:url('../images/banner1.jpg')}
.slide.s2{background-image:url('../images/banner2.jpg')}
.slide.s3{background-image:url('../images/banner3.jpg')}
.slide.s4{background-image:url('../images/banner4.jpg')}
.slide.s5{background-image:url('../images/banner5.jpg')}
.slide.s6{background-image:url('../images/banner6.jpg')}
.slide.s7{background-image:url('../images/banner7.jpg')}
.hero-carousel .car-btn{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.5);background:rgba(0,0,0,.25);color:#fff;font-size:22px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.2s}
.hero-carousel .car-btn:hover{background:var(--accent);border-color:var(--accent)}
.hero-carousel .car-prev{left:18px}
.hero-carousel .car-next{right:18px}
.hero-carousel .car-dots{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);z-index:5;display:flex;gap:10px}
.hero-carousel .dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.45);cursor:pointer;transition:.2s}
.hero-carousel .dot.active{background:#fff;width:26px;border-radius:6px}
@media(max-width:860px){
.hero-carousel{height:clamp(460px,52vh,560px)}
.hero-carousel .car-btn{display:none}
}
/* ---- 通用区块 ---- */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:34px;gap:20px}
.section-head h2{font-size:30px;font-weight:600}
.section-head .sub{color:var(--muted);font-size:14px;margin-top:6px}
/* ---- 关于我们：品牌文案 ---- */
.about-lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:980px;margin-bottom:42px}
.about-blocks{display:flex;flex-direction:column;gap:32px}
.about-block h3{font-size:20px;font-weight:600;color:var(--ink);margin-bottom:12px}
.about-block p{font-size:15px;line-height:1.8;color:var(--muted);margin-bottom:10px}
.about-block p:last-child{margin-bottom:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-auto{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
/* ---- 卡片 ---- */
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s}
.card:hover{border-color:var(--accent-line);transform:translateY(-6px);box-shadow:0 14px 30px rgba(58,51,42,.12)}
.card .thumb{aspect-ratio:4/3;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;color:var(--accent);font-family:var(--serif);font-size:13px;border-bottom:1px solid var(--line)}
/* 产品列表页缩略图保持原比例（contain），留白区域用浅灰底衬托纯色图 */
#list .card .thumb{background:#F1F1F1}
.card .body{padding:16px 18px}
.card .body h3{font-size:16px;font-weight:600}
.card .body .meta{color:var(--muted);font-size:13px;margin-top:6px}
/* ---- 页脚 ---- */
.footer{border-top:1px solid var(--line);padding:50px 0 26px;color:var(--muted);font-size:13px;margin-top:24px;background:var(--surface)}
.footer-top{display:grid;grid-template-columns:1.3fr 2fr;gap:48px}
.f-logo-img{height:48px;width:auto;display:block}
.f-slogan{margin:14px 0 18px;line-height:1.7;max-width:300px;color:var(--muted)}
.f-name{color:var(--ink);font-weight:600;margin-bottom:10px}
.f-line{display:flex;align-items:flex-start;gap:8px;padding:4px 0;color:var(--muted)}
.f-line svg{width:15px;height:15px;color:var(--accent);margin-top:3px;flex-shrink:0}
.f-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.f-title{display:flex;align-items:center;gap:7px;font-family:var(--serif);color:var(--ink);font-weight:600;font-size:14px;margin-bottom:14px}
.f-title svg{width:15px;height:15px;color:var(--accent)}
.f-col a{display:flex;align-items:center;gap:8px;padding:5px 0;color:var(--muted);text-decoration:none;transition:color .2s,transform .2s}
.f-col a:hover{color:var(--accent);transform:translateX(3px)}
.f-col a svg{width:14px;height:14px;opacity:.6}
.f-col a:hover svg{opacity:1;color:var(--accent)}
.f-qrcodes{display:flex;gap:18px;flex-wrap:nowrap;align-items:flex-start}
.qr-item{display:flex;flex-direction:column;align-items:center;gap:6px;flex-shrink:0}
.footer .f-col .f-qrcodes .qr-item img{
width:60px!important;height:60px!important;
min-width:60px!important;min-height:60px!important;
max-width:60px!important;max-height:60px!important;
object-fit:cover;border-radius:6px;border:1px solid var(--line);
background:#fff;transition:transform .25s ease;display:block;box-sizing:border-box
}
.qr-item:hover img{transform:scale(1.05)}
.qr-item span{font-size:12px;color:var(--muted);white-space:nowrap;text-align:center}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;border-top:1px solid var(--line);margin-top:34px;padding-top:18px;font-size:12px;color:var(--muted)}
@media(max-width:860px){
.footer-top{grid-template-columns:1fr;gap:30px}
.f-cols{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:520px){.f-cols{grid-template-columns:1fr}}
/* ---- 产品页：类目树 + 搜索 ---- */
.layout{display:grid;grid-template-columns:240px 1fr;gap:32px;align-items:start}
.tree{list-style:none;border:1px solid var(--line);border-radius:var(--radius);padding:10px;background:#fff;animation:treeFadeIn .5s ease}
.tree li{padding:0;border-radius:8px;font-size:14px;cursor:pointer;display:flex;align-items:center;position:relative;overflow:hidden;transition:background .25s,transform .25s,color .25s}
.tree li a{display:block;width:100%;padding:9px 12px;color:inherit;text-decoration:none}
.tree li::before{content:"";position:absolute;left:0;top:0;bottom:0;width:0;background:var(--accent);transition:width .25s ease}
.tree li:hover{background:rgba(176,137,78,.06);transform:translateX(5px)}
.tree li:hover::before{width:3px}
.tree li.active{background:var(--accent);color:#fff;font-weight:600}
.tree li.active a{color:#fff!important}
.tree li.active::before{width:3px}
.tree li.active:hover{background:var(--accent);transform:none}
.tree .dot{display:none}
/* 折叠子分类 */
.tree .children{display:none}
.tree .children.open{display:block;animation:treeChildrenIn .25s ease}
.tree li.has-children{padding-right:30px}
.tree li .toggle{
position:absolute;right:8px;top:50%;
width:20px;height:20px;margin-top:-10px;
display:flex;align-items:center;justify-content:center;
color:var(--muted);cursor:pointer;
transition:transform .25s ease,color .2s;user-select:none;
transform:rotate(0deg)
}
.tree li.expanded > .toggle,.tree li.active > .toggle{transform:rotate(90deg)}
.tree li .toggle:hover{color:var(--accent)}
@keyframes treeChildrenIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
@keyframes treeFadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}
.chip{padding:8px 16px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--muted);cursor:pointer}
.chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}
/* ---- 搜索栏 ---- */
.search-bar{
display:flex;align-items:center;gap:10px;
background:#fff;border:1px solid var(--line-strong);
border-radius:999px;padding:6px 6px 6px 14px;margin:18px 0 18px;
transition:.25s;box-shadow:0 2px 8px rgba(58,51,42,.04);
width:100%;max-width:430px;box-sizing:border-box
}
.search-bar:hover{
border-color:var(--accent)
}
.search-bar.focus{box-shadow:0 0 0 3px var(--accent-soft);border-color:var(--accent)}
.search-bar .ico{color:var(--accent);display:flex;align-items:center;justify-content:center;width:20px;height:20px;flex-shrink:0}
.search-bar .ico svg{width:18px;height:18px}
.search-bar input{
flex:1;min-width:0;border:0;outline:0;background:transparent;
font-size:14px;color:var(--ink);font-family:inherit;line-height:1.5;
padding:0 4px;height:36px
}
.search-bar input::placeholder{color:var(--muted)}
.search-bar button{
width:36px;height:36px;border:0;background:var(--accent);color:#fff;border-radius:50%;
display:flex;align-items:center;justify-content:center;flex-shrink:0;
cursor:pointer;font-family:inherit;transition:background .2s;padding:0
}
.search-bar button:hover{background:#8A6A39}
.search-bar button svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
/* ---- 子类目快速筛选 ---- */
.sub-cat-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:-4px 0 16px;min-height:0}
.sub-cat-bar .sc-label{font-size:13px;color:var(--muted);flex-shrink:0}
.sub-cat-bar a{display:inline-flex;align-items:center;padding:7px 16px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--ink);background:#fff;transition:.2s}
.sub-cat-bar a:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.sub-cat-bar a.on{border-color:var(--accent);color:#fff;background:var(--accent)}
/* ---- 产品详情 ---- */
.spec-row{
display:grid;grid-template-columns:140px 1fr;
align-items:center;gap:24px;
padding:16px 0;border-bottom:1px solid var(--line);
font-size:14px
}
.spec-row .k{color:var(--muted);white-space:nowrap}
.spec-row .v{text-align:left;font-weight:600;color:var(--ink)}
.qrcodes{display:flex;gap:20px;margin-top:auto}
.qr{margin:0;text-align:center}
.qr img{width:120px;height:120px;object-fit:cover;border:1px solid var(--line);border-radius:10px;display:block;background:#fff}
.qr figcaption{margin-top:8px;font-size:13px;color:var(--muted)}
.qr.qr-missing img{display:none}
.qr.qr-missing::after{content:"图缺失";display:flex;align-items:center;justify-content:center;width:120px;height:120px;border:1px dashed var(--line-strong);border-radius:10px;color:var(--muted);font-size:13px}
.pd-page{padding:48px 0 16px}
.pd-page .crumb{font-size:13px;color:var(--muted);margin-bottom:18px}
.pd-page .crumb a{color:var(--muted)}
.pd-page .crumb a:hover{color:var(--accent)}
.pd-title{font-size:30px;font-weight:600;margin:6px 0 6px}
.pd-sub{color:var(--muted);margin-bottom:20px}
.pd-gallery{display:grid;grid-template-columns:0.9fr 1.1fr;gap:40px;align-items:start;margin-top:16px}
.pd-gallery > .left{display:flex;flex-direction:column;gap:12px;min-height:0}
.pd-gallery .main{
width:100%;max-width:480px;margin:0 auto;
height:350px;
border-radius:var(--radius-lg);
background:#F1F1F1;
border:1px solid #D8D5CE;
overflow:hidden;
display:flex;align-items:center;justify-content:center;
box-shadow:inset 0 0 0 1px rgba(0,0,0,.03)
}
.pd-gallery .main img{display:block;width:100%;height:100%;object-fit:contain}
.pd-gallery .thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;height:88px;flex-shrink:0;max-width:480px;margin:0 auto;width:100%}
.pd-gallery .thumb{
height:100%;border-radius:10px;overflow:hidden;
background:#F1F1F1;
border:1px solid #C8C4BC;cursor:pointer;
display:flex;align-items:center;justify-content:center;
transition:border-color .2s ease,box-shadow .2s ease
}
.pd-gallery .thumb img{display:block;width:100%;height:100%;object-fit:cover}
.pd-gallery .thumb:hover{border-color:var(--accent)}
.pd-gallery .thumb.on{border-color:var(--accent);outline:2px solid var(--accent-soft);box-shadow:0 0 0 1px var(--accent-soft)}
.pd-spec{margin-top:28px;padding-top:18px}
.pd-spec h3{font-size:17px;font-weight:600;margin-bottom:8px}
.pd-rel{margin-top:148px}
.pd-rel .head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:18px}
@media(max-width:860px){
.pd-gallery{grid-template-columns:1fr}
}
/* ---- 关于/了解：数据统计 & 时间线 ---- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:10px 0 40px}
.stat{background:var(--surface);border-radius:var(--radius);padding:22px;text-align:center}
.stat .n{font-size:32px;font-weight:600;font-family:var(--serif);display:flex;align-items:center;justify-content:center;gap:6px}
.stat .l{color:var(--muted);font-size:13px;margin-top:6px}
.timeline{list-style:none;border-left:2px solid var(--accent-line);padding-left:22px}
.timeline li{position:relative;padding:0 0 26px}
.timeline li::before{content:"";position:absolute;left:-29px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--accent)}
.timeline .y{font-family:var(--serif);color:var(--accent);font-weight:600}
/* ---- 资讯中心 ---- */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.news-card{display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;text-decoration:none;color:inherit;transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease}
.news-card:hover{transform:translateY(-8px);box-shadow:0 18px 40px rgba(58,51,42,.16);border-color:var(--accent-line)}
.news-card .n-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--accent-soft)}
.news-card .n-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}
.news-card:hover .n-thumb img{transform:scale(1.08)}
.news-card .n-cat{position:absolute;left:10px;top:10px;background:rgba(176,137,78,.92);color:#fff;font-size:11px;padding:2px 8px;border-radius:4px}
.news-card .n-body{padding:16px 16px 18px;display:flex;flex-direction:column;flex:1}
.news-card .n-title{font-size:16px;font-weight:600;line-height:1.45;letter-spacing:.3px;transition:color .2s}
.news-card:hover .n-title{color:var(--accent)}
.news-card .n-sum{color:var(--muted);font-size:12px;line-height:1.7;margin:8px 0 12px;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .n-meta{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}
.news-card .n-meta .nm{display:flex;align-items:center;gap:5px}
.news-card .n-meta svg{width:14px;height:14px;color:var(--accent)}
.news-list-page{padding-top:36px}
.news-detail{max-width:820px;margin:0 auto;padding:24px 0 10px}
.news-detail .nd-back{font-size:13px;color:var(--muted);display:inline-block;margin-bottom:14px}
.news-detail .nd-back:hover{color:var(--accent)}
.news-detail .nd-title{font-size:32px;font-weight:700;line-height:1.35;margin:4px 0 16px}
.news-detail .nd-meta{display:flex;align-items:center;gap:18px;font-size:13px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:26px}
.news-detail .nd-meta .nm{display:flex;align-items:center;gap:6px}
.news-detail .nd-meta svg{width:15px;height:15px;color:var(--accent)}
.news-detail .nd-cover{width:100%;aspect-ratio:16/9;border-radius:var(--radius-lg);object-fit:cover;margin-bottom:26px;background:var(--accent-soft)}
.news-detail .nd-content{font-size:16px;line-height:1.95;color:var(--ink)}
.news-detail .nd-content p{margin:0 0 18px}
.news-detail .nd-content img{max-width:100%;border-radius:10px;margin:10px 0}
/* ---- 设计搭配 ---- */
.design-page{padding-top:36px}
.design-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.design-card{display:flex;flex-direction:column;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;text-decoration:none;color:inherit;transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease}
.design-card:hover{transform:translateY(-8px);box-shadow:0 18px 40px rgba(58,51,42,.16);border-color:var(--accent-line)}
.design-card .d-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--accent-soft)}
.design-card .d-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}
.design-card:hover .d-thumb img{transform:scale(1.08)}
.design-card .d-thumb .ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--accent);font-family:var(--serif);font-size:14px}
.design-card .d-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.design-card .d-title{font-size:16px;font-weight:600;line-height:1.45;letter-spacing:.3px;transition:color .2s}
.design-card:hover .d-title{color:var(--accent)}
.design-card .d-sum{color:var(--muted);font-size:13px;line-height:1.7;margin:8px 0 14px;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.design-card .d-meta{display:flex;align-items:center;gap:14px;font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px}
.design-card .d-meta .dm{display:flex;align-items:center;gap:5px;transition:color .2s}
.design-card:hover .d-meta .dm{color:var(--accent)}
.design-card .d-meta svg{width:14px;height:14px;color:var(--accent)}
@media(max-width:1100px){
.news-grid{grid-template-columns:repeat(3,1fr)}
.design-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:860px){
.news-grid{grid-template-columns:repeat(2,1fr)}
.design-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:520px){
.news-grid{grid-template-columns:1fr}
.design-grid{grid-template-columns:1fr}
}
/* ---- 分页 ---- */
.pagination{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:32px;padding:16px 0;flex-wrap:wrap}
.pagination .pg-btn,.pagination .pg-num{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 10px;border:1px solid var(--line);border-radius:6px;font-size:13px;color:var(--ink);text-decoration:none;cursor:pointer;transition:all .2s}
.pagination .pg-btn:hover,.pagination .pg-num:hover{border-color:var(--accent);color:var(--accent)}
.pagination .pg-btn.disabled{opacity:.4;cursor:not-allowed;pointer-events:none}
.pagination .pg-num.on{background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600}
.pagination .pg-info{font-size:12px;color:var(--muted);margin-left:12px}
/* ---- 响应式 ---- */
@media(max-width:860px){
.hero,.layout,.pd,.grid-2{grid-template-columns:1fr}
.grid-3,.grid-4,.mod-grid{grid-template-columns:repeat(2,1fr)}
.stat-cards{grid-template-columns:repeat(2,1fr)}
.stat-cards.two{max-width:100%}
.nav-links{gap:18px}
.nav-in{height:auto;padding:10px 0;flex-wrap:wrap}
}
/* ---- 原型增强：图标 + 滚动入场动画 ---- */
.js-anim .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1);transition-delay:var(--d,0s)}
.js-anim .reveal.in{opacity:1;transform:none}
svg.lucide{width:1em;height:1em;vertical-align:-2px;margin-right:6px;stroke-width:2}
.side-item svg.lucide,.nav-link svg.lucide,.tab svg.lucide{margin-right:8px}
@media (prefers-reduced-motion:reduce){.js-anim .reveal{opacity:1;transform:none;transition:none}}
.nav-link svg.lucide,.side-item svg.lucide,.tab svg.lucide{color:var(--accent);stroke-width:2.2;width:18px;height:18px}
.section-head h2 svg.lucide{color:var(--accent);stroke-width:2.2;width:22px;height:22px;vertical-align:-5px;margin-right:9px}
.mp-title svg.lucide{color:var(--accent);stroke-width:2.2}
.stat svg.lucide,.sc svg.lucide{color:var(--accent);stroke-width:2.2}
a.card{color:inherit;display:flex;flex-direction:column}
a.card .thumb{flex-shrink:0}
/* ===== 后台管理 ===== */
.admin-shell{display:flex;min-height:100vh}
.admin-side{width:240px;background:#2C2620;color:#E9E2D6;padding:22px 16px;flex-shrink:0}
.admin-side .s-logo{font-family:var(--serif);font-size:18px;color:#fff;margin-bottom:22px;padding:4px 6px}
.admin-side a{display:block;padding:11px 14px;border-radius:10px;color:#CFC6B6;margin-bottom:4px;font-size:14px}
.admin-side a:hover,.admin-side a.active{background:var(--accent);color:#fff}
.admin-main{flex:1;padding:28px 32px;background:var(--bg);min-width:0}
.admin-topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 4px 18px;border-bottom:1px solid var(--line);margin-bottom:18px}
.admin-topbar .at-title{font-family:var(--serif);font-size:20px;color:var(--ink)}
.admin-topbar .at-user{font-size:13px;color:var(--muted)}
.admin-topbar .at-user a{color:var(--accent)}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-align:center}
.stat-card .num{font-family:var(--serif);font-size:30px;color:var(--accent);font-weight:700}
.stat-card .lbl{color:var(--muted);font-size:14px;margin-top:4px}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:20px}
.panel h3{margin:0 0 14px;font-family:var(--serif)}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:13px;color:var(--muted)}
.field input[type=checkbox]{align-self:flex-start;margin-left:0}
.inp{width:100%;padding:9px 12px;border:1px solid var(--line-strong);border-radius:10px;font-size:14px;background:#fff;color:var(--ink);font-family:var(--sans)}
.inp:focus{outline:none;border-color:var(--accent)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 22px}
.form-grid .col-2{grid-column:1 / -1}
textarea.inp{resize:vertical}
.grid{position:relative;z-index:1;width:100%;border-collapse:collapse;font-size:14px}
.grid th,.grid td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--line);line-height:1.4}
.grid th{color:var(--muted);font-weight:600;background:var(--surface)}
.grid tr:hover td{background:#fffdf8}
.grid td.t-time{color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap;font-size:13px}
.cover-preview{display:inline-block;position:relative;vertical-align:middle}
.cover-preview img{width:70px;height:70px;object-fit:cover;border-radius:6px;border:1px solid var(--line);display:block}
.cover-del{position:absolute;top:-8px;right:-8px;width:22px;height:22px;border-radius:50%;border:0;background:var(--error);color:#fff;cursor:pointer;font-size:14px;line-height:22px;text-align:center;padding:0}
.cover-del:hover{transform:scale(1.1)}
.grid .thumb img,.mod-thumb img{width:64px;height:48px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}
/* 后台产品列表主图：固定 70x70，虚线边框，布局紧凑（仅限后台 .admin 容器，不影响前端网页） */
.admin .grid td img.thumb,
.admin .grid td .no-thumb{width:70px;height:70px;object-fit:contain;border-radius:6px;border:1px dashed var(--accent-soft);display:block;background:var(--surface)}
.admin .grid td .no-thumb{display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px;text-align:center}
.grid .acts a,.cat-acts a,.mod-acts a{margin-right:12px;color:var(--accent)}
.grid .acts a:hover,.cat-acts a:hover,.mod-acts a:hover{text-decoration:underline}
.msg{margin:6px 0 14px}
.msg .ok{color:var(--success);font-size:13px}
.msg .err{color:#B23A2E;font-size:13px}
/* 后台分页：图标按钮 + 输入页码跳转 + 悬停动效 */
.pager-box{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:16px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.pager-box .pg-btn{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--ink);text-decoration:none;transition:all .2s ease}
.pager-box .pg-btn:hover:not(.disabled){border-color:var(--accent);color:var(--accent);transform:translateY(-2px);box-shadow:0 4px 10px rgba(176,137,78,.18)}
.pager-box .pg-btn.disabled{opacity:.45;cursor:not-allowed}
.pager-box .pg-info{font-weight:600;color:var(--ink)}
.pager-box .pg-total{color:var(--muted)}
.pager-box .pg-jump{display:inline-flex;align-items:center;gap:5px}
.pager-box .pg-inp{width:46px;text-align:center;padding:5px 4px;border:1px solid var(--line);border-radius:6px;font-size:13px;color:var(--ink)}
.pager-box .pg-go{padding:5px 12px;border-radius:6px;border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;font-size:13px;transition:all .2s ease}
.pager-box .pg-go:hover{filter:brightness(1.05);transform:translateY(-1px)}
.cat-tree{list-style:none;margin:0;padding:0}
.cat-tree ul{list-style:none;margin:0;padding-left:26px;border-left:1px dashed var(--line)}
.cat-node{display:flex;align-items:center;gap:14px;padding:8px 10px;border-radius:10px}
.cat-node:hover{background:var(--surface)}
.cat-name{font-size:15px;color:var(--ink)}
.cat-name em{color:var(--muted);font-style:normal;font-size:12px;margin-left:6px}
.cat-mini-thumb{width:32px;height:32px;border-radius:6px;object-fit:cover;vertical-align:middle;margin-left:8px;border:1px solid var(--line)}
.cat-acts a{font-size:13px;color:var(--accent)}
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:nowrap;margin-bottom:14px}
.toolbar .inp{width:auto;flex:1;min-width:120px;max-width:none}
.toolbar select.inp{flex:none;width:180px;min-width:180px;max-width:220px}
.toolbar .kw-inp{flex:none;width:180px;min-width:180px;max-width:none;padding-left:14px;padding-right:14px}
.toolbar .btn{flex:none}
.mod-item{display:flex;gap:16px;padding:14px;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;background:#fff}
.mod-thumb{width:120px;flex:none;background:var(--surface);border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.mod-thumb img{width:100%;height:100%;object-fit:cover}
.mod-body{flex:1}
.mod-key{font-size:14px;margin-bottom:8px}
.mod-fields{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:10px}
.mod-acts{display:flex;gap:10px}
.rte{border:1px solid var(--line-strong);border-radius:10px;overflow:hidden;background:#fff}
.rte-bar{display:flex;gap:4px;flex-wrap:wrap;padding:8px;background:var(--surface);border-bottom:1px solid var(--line)}
.rte-bar button{border:1px solid var(--line-strong);background:#fff;border-radius:6px;padding:5px 10px;cursor:pointer;font-size:13px;color:var(--ink)}
.rte-bar button:hover{border-color:var(--accent);color:var(--accent)}
.rte-area{min-height:220px;padding:14px;font-size:14px;line-height:1.7;outline:none}
.rte-area img{max-width:100%}
.info-table{width:100%;border-collapse:collapse;font-size:14px}
.info-table th,.info-table td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
.info-table th{color:var(--muted);font-weight:600;width:140px}
.chk-list{padding-top:4px}
.chk-list td{padding:4px 10px}
/* 登录页 */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(120% 140% at 20% 20%,#C8A15A 0%,#B0894E 45%,#6F5126 100%)}
.login-card{width:340px;background:rgba(255,255,255,.96);border-radius:18px;padding:30px 28px;box-shadow:0 20px 50px rgba(0,0,0,.18)}
.login-logo{text-align:center;margin-bottom:22px}
.login-logo img{max-width:200px;height:auto;display:inline-block}
.login-card .field{margin-bottom:14px}
.login-btn{width:100%;margin-top:6px}
.login-msg{color:#B23A2E;font-size:13px;min-height:18px;margin-top:6px;text-align:center}
.login-hint{color:var(--muted);font-size:12px;margin-top:12px;text-align:center;line-height:1.6}
/* 后台响应式 */
@media(max-width:860px){
.stat-row{grid-template-columns:1fr 1fr}
.form-grid{grid-template-columns:1fr}
.mod-fields{grid-template-columns:1fr}
.admin-shell{flex-direction:column}
.admin-side{width:100%;padding:12px 16px}
.admin-side a{display:inline-block;margin-right:8px}
.admin-main{padding:16px}
}
/* ===== 后台原型风格（对齐 prototypes 后台静态原型） ===== */
.panel{border-radius:12px;padding:0;margin-bottom:22px;overflow:hidden}
.panel .p-head{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--line);background:var(--surface)}
.panel .p-head strong{font-size:15px;font-weight:600}
.panel .p-body{padding:18px}
.admin{display:grid;grid-template-columns:230px 1fr;min-height:100vh}
.sidebar{background:var(--surface);border-right:1px solid var(--line);padding:22px 16px;display:flex;flex-direction:column}
.sidebar .s-brand{display:flex;align-items:center;gap:10px;margin-bottom:22px;padding:0 6px}
.sidebar .s-brand .s-logo-img{max-height:42px;width:auto;display:block}
.s-nav{flex:1}
.side-item{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:10px;font-size:14px;color:var(--ink);cursor:pointer;text-decoration:none;margin-bottom:4px}
.side-item .ic{width:18px;height:18px;flex:none;color:var(--muted)}
.side-item:hover{background:#fff}
.side-item:hover .ic{color:var(--accent)}
.side-item.active{background:var(--accent);color:#fff}
.side-item.active .ic{color:#fff}
.side-group{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:1px;margin:16px 6px 8px;font-weight:600}
.side-sub{display:flex;align-items:center;gap:10px;padding:10px 12px 10px 24px;border-radius:10px;font-size:14px;color:var(--ink);cursor:pointer;text-decoration:none;margin-bottom:2px}
.side-sub .dot{width:14px;height:14px;flex:none;color:var(--muted)}
.side-sub:hover{background:#fff}
.side-sub:hover .dot{color:var(--accent)}
.side-sub.active{background:var(--accent);color:#fff}
.side-sub.active .dot{color:#fff}
.s-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);display:flex;justify-content:flex-end}
.logout{font-size:13px;color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:8px}
.logout:hover{color:#B23A2E;background:#fff}
.main{padding:26px 30px;min-width:0}
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.topbar h1{font-size:22px;font-weight:600;font-family:var(--serif)}
.topbar .tb-actions{display:flex;align-items:center;gap:12px}
.topbar .at-user{font-size:13px;color:var(--muted)}
.topbar .at-user a{color:var(--accent)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid-2 > .panel{margin-bottom:0}
/* ---- 后台首页 Dashboard ---- */
.dashboard-wrap{animation:dashFadeIn .8s ease both}
.dash-welcome{margin-bottom:28px}
.dash-welcome h2{font-size:24px;font-weight:500;color:var(--ink);margin:0 0 6px;letter-spacing:.5px}
.dash-welcome p{margin:0;color:var(--muted);font-size:14px}
.dash-section{margin-bottom:32px}
.dash-title{font-size:13px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:14px;padding-left:4px}
.stat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat-cards.two{grid-template-columns:repeat(2,1fr);max-width:66.666%}
.sc{position:relative;display:flex;align-items:center;gap:16px;background:#fff;border-radius:16px;padding:22px 20px;box-shadow:0 4px 16px rgba(58,51,42,.06);border:1px solid var(--line);overflow:hidden;transition:transform .35s ease,box-shadow .35s ease;animation:cardPopIn .7s ease both}
.sc::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent);opacity:.85;transition:height .35s ease}
.sc::after{content:'';position:absolute;top:-40%;right:-20%;width:120px;height:120px;border-radius:50%;background:radial-gradient(circle,rgba(176,137,78,.12) 0%,transparent 70%);opacity:0;transition:opacity .4s ease}
.sc:hover{transform:translateY(-5px);box-shadow:0 14px 34px rgba(58,51,42,.12)}
.sc:hover::before{height:6px}
.sc:hover::after{opacity:1}
.sc-icon{flex:none;width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;background:var(--accent);box-shadow:0 6px 16px rgba(176,137,78,.28);transition:transform .35s ease}
.sc-icon svg{width:26px;height:26px}
.sc:hover .sc-icon{transform:scale(1.1) rotate(-4deg)}
.sc-body{flex:1;min-width:0}
.sc .n{font-size:32px;font-weight:600;font-family:var(--serif);color:var(--ink);line-height:1.1;transition:color .3s ease}
.sc:hover .n{color:var(--accent)}
.sc .l{color:var(--muted);font-size:13px;margin-top:6px;letter-spacing:.3px}
/* 卡片主题色 */
.sc-amber::before{background:linear-gradient(90deg,#D4A25E,#B0894E)}
.sc-amber .sc-icon{background:linear-gradient(135deg,#D4A25E,#B0894E)}
.sc-green::before{background:linear-gradient(90deg,#6AA889,#4A8C6B)}
.sc-green .sc-icon{background:linear-gradient(135deg,#6AA889,#4A8C6B);box-shadow:0 6px 16px rgba(74,140,107,.28)}
.sc-blue::before{background:linear-gradient(90deg,#6B9BD0,#4A7BB7)}
.sc-blue .sc-icon{background:linear-gradient(135deg,#6B9BD0,#4A7BB7);box-shadow:0 6px 16px rgba(74,123,183,.28)}
.sc-purple::before{background:linear-gradient(90deg,#9B84C8,#7A62AD)}
.sc-purple .sc-icon{background:linear-gradient(135deg,#9B84C8,#7A62AD);box-shadow:0 6px 16px rgba(122,98,173,.28)}
.sc-emerald::before{background:linear-gradient(90deg,#5DBB8A,#3A9A6B)}
.sc-emerald .sc-icon{background:linear-gradient(135deg,#5DBB8A,#3A9A6B);box-shadow:0 6px 16px rgba(58,154,107,.28)}
.sc-gold::before{background:linear-gradient(90deg,#C8A15A,#B0894E)}
.sc-gold .sc-icon{background:linear-gradient(135deg,#C8A15A,#B0894E)}
@keyframes dashFadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@keyframes cardPopIn{from{opacity:0;transform:translateY(20px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}
.sc:nth-child(1){animation-delay:.05s}
.sc:nth-child(2){animation-delay:.12s}
.sc:nth-child(3){animation-delay:.19s}
.sc:nth-child(4){animation-delay:.26s}
.sc:nth-child(5){animation-delay:.33s}
.sc:nth-child(6){animation-delay:.4s}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;background:var(--success-soft);color:var(--success);font-weight:500}
.badge.off{background:var(--accent-soft);color:var(--muted)}
/* 模块图片网格（原型 admin-module） */
.mod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.mod{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.mod .ph{aspect-ratio:16/9;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;color:var(--accent);font-family:var(--serif);font-size:13px;text-align:center;padding:8px;overflow:hidden}
.mod .ph img{width:100%;height:100%;object-fit:cover}
.mod .m-body{padding:12px 14px;display:flex;justify-content:space-between;align-items:center;gap:10px}
.mod .m-body .name{font-size:14px;font-weight:500}
.mod .m-body .name small{display:block;color:var(--muted);font-weight:400;font-size:12px}
/* 富文本编辑器（原型 admin-news .editor） */
.editor{border:1px solid var(--line-strong);border-radius:12px;overflow:hidden;background:#fff;margin-bottom:14px}
.ed-toolbar{display:flex;gap:0;padding:10px 12px;border-bottom:1px solid var(--line);background:var(--surface);flex-wrap:wrap;align-items:center}
.ed-toolbar .ed-group{display:flex;gap:6px;align-items:center;padding:0 10px;border-right:1px solid var(--line)}
.ed-toolbar .ed-group:first-child{padding-left:0}
.ed-toolbar .ed-group:last-child{border-right:0;padding-right:0}
.ed-toolbar .t,.ed-toolbar button,.ed-toolbar select{padding:6px 10px;border:1px solid var(--line);border-radius:7px;background:#fff;font-size:13px;color:var(--ink);min-width:30px;text-align:center;cursor:pointer;line-height:1.4}
.ed-toolbar select.t{min-width:auto;padding-right:22px;text-align:left}
.ed-toolbar .t:hover,.ed-toolbar button:hover,.ed-toolbar select:hover{border-color:var(--accent);color:var(--accent)}
.ed-toolbar .t.accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.ed-body{min-height:240px;padding:20px;font-size:15px;line-height:1.8;outline:none}
.ed-body h2{font-size:22px;margin:12px 0 8px}
.ed-body h3{font-family:var(--serif);font-size:18px;margin:10px 0 6px}
.ed-body p{color:#444;margin:8px 0}
.ed-body blockquote{border-left:3px solid var(--accent);margin:10px 0;padding:8px 16px;background:var(--surface);color:var(--muted)}
.ed-body pre{background:#f5f5f5;padding:12px;border-radius:6px;overflow:auto;font-family:Consolas,monospace;font-size:13px}
.ed-body table{border-collapse:collapse;width:100%;margin:10px 0}
.ed-body td,.ed-body th{border:1px solid var(--line);padding:8px 10px}
.ed-body .ph{color:var(--muted);font-style:italic}
.ed-body img{max-width:100%;height:auto;display:block;margin:8px 0}
.editor.fullscreen{position:fixed;z-index:9999;top:0;left:0;width:100vw;height:100vh;border-radius:0;display:flex;flex-direction:column}
.editor.fullscreen .ed-toolbar{border-radius:0}
.editor.fullscreen .ed-body{flex:1;overflow:auto;min-height:0}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:4px}
/* 弹窗 */
.modal{display:none;position:fixed;inset:0;z-index:1000;align-items:center;justify-content:center}
.modal.open{display:flex}
.modal-overlay{position:absolute;inset:0;background:rgba(58,51,42,.55)}
.modal-box{position:relative;background:#fff;border-radius:14px;width:min(900px,92vw);max-height:90vh;display:flex;flex-direction:column;box-shadow:0 24px 70px rgba(0,0,0,.25)}
.collocation-modal-box{width:min(1100px,95vw)}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line);background:var(--surface)}
.modal-head strong{font-size:16px}
.modal-close{width:32px;height:32px;border:0;background:transparent;font-size:24px;line-height:1;color:var(--muted);cursor:pointer;border-radius:8px}
.modal-close:hover{background:#fff;color:var(--accent)}
.modal-body{flex:1;overflow:auto;padding:20px}
.modal-foot{display:flex;gap:10px;padding:16px 20px;border-top:1px solid var(--line);background:var(--surface);justify-content:flex-end}
.modal-body .form-grid{gap:0 20px;align-items:start}
.modal-body .field{margin-bottom:12px}
/* 产品弹窗：普通字段 label 与填写项左右并排，保持两列排列；主图/简介仍上下全宽 */
.modal-body .form-grid .field:not(.col-2){flex-direction:row;align-items:center;gap:10px}
.modal-body .form-grid .field:not(.col-2) > label{width:64px;flex-shrink:0;margin-bottom:0;line-height:1.3;text-align:right}
.modal-body .form-grid .field:not(.col-2) > .inp,
.modal-body .form-grid .field:not(.col-2) > .cat-tree-wrap{flex:1;min-width:0}
.modal-body .form-grid .field:not(.col-2) > input[type=checkbox]{flex:none;margin-top:0}
.modal-body .form-grid .field:not(.col-2) > #btnPickLetters{flex:none}
.modal-body .form-grid .field:not(.col-2) > #lettersSelected,
.modal-body .form-grid .field:not(.col-2) > .letters-selected{width:100%;margin-left:74px;margin-top:8px}
.modal-body .form-grid .field.field-col{flex-direction:column;align-items:flex-start;gap:6px}
.modal-body .form-grid .field.field-col > label{width:64px;flex-shrink:0;margin-bottom:0;text-align:right}
.modal-body .form-grid .field.field-col > #btnPickLetters{width:calc(100% - 74px);flex:none;margin-left:74px}
.modal-body .form-grid .field.field-col > #lettersSelected,
.modal-body .form-grid .field.field-col > .letters-selected{width:calc(100% - 74px);margin-left:74px;margin-top:8px}
/* 字母砖选择（仅后台） */
.admin .letters-selected{display:flex;flex-wrap:wrap;gap:8px;margin-top:0;min-height:0}
.admin .letter-chip{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;background:var(--surface);border:1px solid var(--line);border-radius:8px;font-size:13px;max-width:100%}
.admin .letter-chip .lci{display:flex;flex-direction:column;line-height:1.3}
.admin .letter-chip .code{font-weight:600;color:var(--ink)}
.admin .letter-chip .spec{color:var(--muted);font-size:12px}
.admin .letter-rm{width:20px;height:20px;border-radius:50%;background:rgba(0,0,0,.06);color:var(--muted);display:flex;align-items:center;justify-content:center;cursor:pointer;flex:none;line-height:1}
.admin .letter-rm:hover{background:var(--error);color:#fff}
.admin .letter-modal-box{width:720px;max-width:92vw}
.admin .letter-search{display:flex;gap:8px;margin-bottom:14px}
.admin .letter-search input{flex:1;padding:8px 12px;border:1px solid var(--line-strong);border-radius:8px;font-size:14px;background:#fff}
.admin .letter-list{max-height:50vh;overflow-y:auto;border:1px solid var(--line);border-radius:8px;background:#fff}
.admin .letter-row{display:flex;align-items:center;gap:10px;padding:8px 12px;border-bottom:1px solid var(--line);cursor:pointer;margin:0}
.admin .letter-row:last-child{border-bottom:none}
.admin .letter-row:hover{background:var(--surface)}
.admin .letter-row input[type=checkbox]{flex:none}
.admin .letter-row img{width:44px;height:44px;object-fit:contain;background:#fff;border-radius:4px;border:1px solid var(--line);flex:none}
.admin .letter-row .lr-text{flex:1;line-height:1.3}
.admin .letter-row .code{font-weight:600;color:var(--ink)}
.admin .letter-row .spec{color:var(--muted);font-size:12px;margin-top:2px}
/* 多图上传缩略图 */
.img-thumb-list{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:12px}
.img-thumb-item{position:relative;width:100px;height:100px;border-radius:10px;overflow:hidden;border:1px dashed var(--accent-soft);background:var(--surface);flex:none}
.img-thumb-item img{width:100%;height:100%;object-fit:cover;display:block}
.img-thumb-item .img-del{position:absolute;top:4px;right:4px;width:20px;height:20px;border-radius:50%;background:rgba(0,0,0,.55);color:#fff;font-size:14px;display:flex;align-items:center;justify-content:center;cursor:pointer;line-height:1}
.img-thumb-item .img-del:hover{background:#B23A2E}
.img-thumb-item .img-main{position:absolute;bottom:0;left:0;right:0;background:var(--accent);color:#fff;font-size:11px;text-align:center;padding:2px 0}
.field label .hint{font-size:12px;color:var(--muted);font-weight:normal}
/* ---- 前端：资料下载页 ---- */
.tool-ul{list-style:none;display:flex;flex-direction:column;gap:14px}
.tool-li{display:flex;align-items:center;gap:16px;padding:18px 20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;transition:.2s}
.tool-li:hover{border-color:var(--accent-line);box-shadow:0 8px 22px rgba(58,51,42,.08)}
.tool-icon{font-size:28px;color:var(--accent);flex:none}
.tool-info{display:flex;flex-direction:column;gap:4px;flex:1;min-width:0}
.tool-title{font-size:16px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tool-title:hover{color:var(--accent)}
.tool-meta{font-size:13px;color:var(--muted)}
/* ---- 后台：PDF 图册列表 ---- */
.pdf-list{list-style:none;display:flex;flex-direction:column;gap:12px;margin:0;padding:0}
.pdf-card{display:flex;align-items:center;gap:16px;padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:#fff;transition:.2s}
.pdf-card:hover{border-color:var(--accent-line);box-shadow:0 8px 22px rgba(58,51,42,.08)}
.pdf-thumb{flex:none;width:46px;height:52px;border-radius:6px;background:linear-gradient(135deg,#B0894E,#C8A15A);color:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;letter-spacing:.5px;box-shadow:0 3px 8px rgba(176,137,78,.25)}
.pdf-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:6px}
.pdf-title{font-size:15px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-decoration:none}
.pdf-title:hover{color:var(--accent)}
.pdf-meta{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.pdf-meta .dot{color:var(--line-strong)}
.pdf-acts{display:flex;gap:10px;flex-shrink:0}
.pdf-empty{text-align:center;color:var(--muted);padding:36px 10px;font-size:14px;background:var(--surface);border-radius:12px;border:1px dashed var(--line)}
@media(max-width:760px){
.pdf-card{flex-wrap:wrap;gap:12px}
.pdf-acts{width:100%;justify-content:flex-end}
}
/* 后台响应式（原型风格） */
@media(max-width:980px){
.admin{grid-template-columns:1fr}
.sidebar{border-right:0;border-bottom:1px solid var(--line)}
.stat-cards{grid-template-columns:repeat(2,1fr)}
.stat-cards.two{max-width:100%}
.mod-grid{grid-template-columns:repeat(2,1fr)}
.grid-2{grid-template-columns:1fr}
}
/* ---- 后台：搭配管理产品选择器 ---- */
.prod-field{padding-top:0}
.prod-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:10px;flex-wrap:wrap}
.prod-head label{margin:0;font-weight:600}
.prod-search-bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.prod-search-bar .inp{width:220px;margin:0}
.prod-picker{border:1px solid var(--line);border-radius:12px;padding:16px;background:#fff}
.prod-filters{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.prod-filters .inp{flex:0 0 auto;width:150px;margin:0}
.prod-filters .btn{flex:none}
.prod-filter-hidden{display:none}
.prod-candidates{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;max-height:360px;overflow-y:auto;padding:4px;border:1px dashed var(--line);border-radius:10px;background:var(--bg)}
.prod-cand-item{display:flex;align-items:center;gap:8px;padding:8px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer;transition:.2s}
.prod-cand-item:hover{border-color:var(--accent-line)}
.prod-cand-item.selected{border-color:var(--accent);background:var(--accent-soft)}
.prod-cand-item input{flex:none;width:16px;height:16px;cursor:pointer}
.prod-cand-img{width:50px;height:50px;object-fit:cover;border-radius:6px;border:1px solid var(--line);flex:none;background:var(--surface)}
.prod-cand-info{display:flex;flex-direction:row;align-items:center;gap:6px;min-width:0}
.prod-cand-info b{font-size:13px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:none;max-width:80px}
.prod-cand-info span{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;min-width:0}
.prod-empty{grid-column:1 / -1;padding:30px 10px;text-align:center;color:var(--muted);font-size:13px}
.prod-selected-wrap{margin-top:14px}
.prod-selected-wrap strong{display:block;font-size:13px;color:var(--muted);margin-bottom:8px;font-weight:600}
.prod-selected{display:flex;flex-wrap:wrap;gap:10px;min-height:40px;padding:10px;border:1px solid var(--line);border-radius:10px;background:var(--bg)}
.prod-tag{display:inline-flex;align-items:center;gap:6px;padding:4px 10px 4px 4px;background:#fff;border:1px solid var(--line);border-radius:999px;font-size:12px;color:var(--ink)}
.prod-tag img{width:28px;height:28px;object-fit:cover;border-radius:50%;background:var(--surface)}
.prod-tag b{font-weight:600}
.prod-tag span{max-width:120px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.prod-tag-del{width:18px;height:18px;border-radius:50%;background:var(--surface);color:var(--muted);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;font-style:normal;margin-left:2px}
.prod-tag-del:hover{background:#B23A2E;color:#fff}
.prod-empty-sm{color:var(--muted);font-size:13px;padding:6px 0}
@media(max-width:1100px){
.prod-candidates{grid-template-columns:repeat(4,1fr)}
}
@media(max-width:980px){
.prod-candidates{grid-template-columns:repeat(3,1fr)}
.prod-filters .inp{max-width:none}
}
@media(max-width:760px){
.prod-head{flex-direction:column;align-items:flex-start}
.prod-candidates{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
.prod-candidates{grid-template-columns:1fr}
.prod-search-bar .inp{width:100%}
}
@media(max-width:560px){
.stat-cards,.mod-grid{grid-template-columns:1fr}
.stat-cards.two{grid-template-columns:1fr}
}
/* ===== 后台：产品编辑弹窗 — 类目树形下拉 ===== */
.cat-tree-wrap{position:relative}
.cat-tree-select{
position:relative;width:100%;min-height:40px;
padding:9px 34px 9px 12px;border:1px solid var(--line-strong);border-radius:10px;
background:#fff;color:var(--ink);font-size:14px;cursor:pointer;
display:flex;align-items:center;outline:none;transition:border-color .2s
}
.cat-tree-select:hover,.cat-tree-select:focus{border-color:var(--accent)}
.cat-tree-select .cat-tree-display{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cat-tree-select .cat-tree-arrow{
position:absolute;right:12px;top:50%;margin-top:-8px;
color:var(--muted);font-size:16px;line-height:1;
transform:rotate(90deg);transition:transform .2s
}
.cat-tree-select.open .cat-tree-arrow{transform:rotate(-90deg)}
.cat-tree-panel{
display:none;position:absolute;left:0;right:0;top:100%;margin-top:4px;
max-height:320px;overflow:auto;background:#fff;border:1px solid var(--line-strong);
border-radius:10px;box-shadow:0 12px 40px rgba(58,51,42,.18);z-index:100;padding:10px
}
.cat-tree-panel.open{display:block}
.cat-tree-list{list-style:none;margin:0;padding:0}
.cat-tree-list ul{list-style:none;margin:0;padding-left:0;border-left:none;display:none}
.cat-tree-list ul.open{display:block}
.cat-tree-node{
position:relative;display:flex;align-items:center;gap:6px;
padding:6px 8px;border-radius:8px;cursor:pointer;font-size:14px;color:var(--ink);transition:background .2s
}
.cat-tree-node:hover{background:var(--surface)}
.cat-tree-node.active{background:var(--accent-soft);color:var(--accent);font-weight:600}
.cat-tree-node.leaf:hover{background:var(--accent-soft)}
.cat-tree-toggle{
width:18px;height:18px;display:flex;align-items:center;justify-content:center;
color:var(--muted);flex-shrink:0;transform:rotate(0deg);transition:transform .2s;user-select:none
}
.cat-tree-node.expanded > .cat-tree-toggle{transform:rotate(90deg)}
.cat-tree-toggle:hover{color:var(--accent)}
.cat-tree-spacer{visibility:hidden}
.cat-tree-label{flex:1;min-width:0}
.cat-tree-node .cat-tree-list{margin-top:4px}
/* ===== 产品列表分类树形筛选下拉 ===== */
.cat-filter{position:relative;display:inline-block;min-width:180px;vertical-align:middle;z-index:100}
.cat-filter-display{display:block;padding:9px 30px 9px 12px;border:1px solid var(--line-strong);border-radius:10px;background:#fff;cursor:pointer;font-size:14px;color:var(--ink);line-height:1.2}
.cat-filter-arrow{position:absolute;right:10px;top:50%;transform:translateY(-50%);pointer-events:none;color:var(--muted);font-size:11px}
.cat-filter-panel{display:none;position:fixed;left:0;top:0;min-width:240px;max-height:320px;overflow:auto;background:#fff;border:1px solid var(--line-strong);border-radius:12px;box-shadow:0 12px 32px rgba(0,0,0,.14);padding:6px;z-index:10000}
.cat-filter-panel.open{display:block}
.cft-all{display:block;padding:8px 10px;border-radius:8px;cursor:pointer;font-size:14px;color:var(--muted)}
.cft-all:hover{background:var(--accent-soft);color:var(--accent)}
.cat-filter-tree{list-style:none;margin:0;padding:0}
.cat-filter-tree ul{list-style:none;margin:0;padding-left:18px;display:none}
.cat-filter-tree li.open > ul{display:block}
.cft-node{display:flex;align-items:center;gap:6px;padding:6px 8px;border-radius:8px;cursor:pointer;font-size:14px;color:var(--ink)}
.cft-node:hover{background:var(--accent-soft);color:var(--accent)}
.cft-toggle{width:16px;flex:0 0 16px;text-align:center;color:var(--muted);font-size:11px;transition:transform .15s}
.cft-node.open > .cft-toggle{transform:rotate(90deg)}
.cft-spacer{visibility:hidden}
.cft-label{flex:1;min-width:0}
/* ===== 字母砖三层模块（图片 / 型号 / 尺寸） ===== */
.pd-letters{margin-top:0;display:block}
.letter-row .v{display:flex;align-items:flex-start;justify-content:flex-start}
.plb-cards{display:flex;flex-wrap:wrap;gap:10px}
.plb-card{width:90px;background:var(--surface,#F5F5F5);border:1px solid rgba(0,0,0,.05);border-radius:8px;overflow:hidden;transition:box-shadow .2s;text-decoration:none;color:inherit;display:block}
.plb-card:hover{box-shadow:0 4px 12px rgba(0,0,0,.08)}
.plb-img{height:68px;background:#F1F1F1}
.plb-img img{width:100%;height:100%;object-fit:contain;display:block}
.plb-code{font-size:12px;font-weight:600;color:var(--ink);text-align:center;padding:6px 4px 2px}
.plb-spec{font-size:11px;color:var(--muted);text-align:center;padding:0 4px 6px}
@media (max-width:640px){
.plb-card{width:82px}
.plb-img{height:60px}
.plb-code{font-size:11px}
}