/* ===== BYCMS 公共样式 ===== */
:root{
  --blue:#0b3d91; --blue2:#123a7a; --cyan:#00b4d8; --ink:#1d2733;
  --mut:#63707e; --line:#e4e9f0; --bg:#f5f7fa;
  --up:#d43030; --down:#0a9a5e; --flat:#8a94a0;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Noto Sans TC",system-ui,-apple-system,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;
  min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--cyan)}
img{max-width:100%}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 16px} /* width:100% 必须：body 是 flex 列布局，auto 外边距会让无宽度的子项收缩成内容宽 */

/* ---- 头部 ---- */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;
  box-shadow:0 1px 6px rgba(11,61,145,.06)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-logo{width:42px;height:42px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-weight:800;font-size:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:17px;color:var(--ink)}
.brand-text small{color:var(--mut);letter-spacing:1px;font-size:11px}
.main-nav{display:flex;gap:2px;flex:1;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.main-nav a{padding:6px 11px;border-radius:6px;color:var(--ink);font-size:15px;white-space:nowrap}
.main-nav a:hover{background:var(--bg);color:var(--blue)}
.main-nav a.active{color:var(--blue);font-weight:600;box-shadow:inset 0 -3px 0 var(--cyan);border-radius:6px 6px 0 0}
.header-right{display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.lang-switch form{display:contents}
.lang-switch a,.lang-switch .langbtn{padding:4px 10px;font-size:13px;color:var(--mut)}
.lang-switch .langbtn{background:none;border:none;cursor:pointer;font-family:inherit}
.lang-switch a.on,.lang-switch .langbtn.on{background:var(--blue);color:#fff}
.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:6px;
  font-size:18px;padding:4px 10px;cursor:pointer}

/* ---- 页头横幅 ---- */
.page-header{background:linear-gradient(120deg,var(--blue) 0%,#0a5bb5 60%,var(--cyan) 130%);
  color:#fff;padding:34px 0}
.page-header h1{font-size:26px}
.crumb{opacity:.85;font-size:13px;margin-top:6px}
.crumb a{color:#fff}

/* ---- 首页 hero ---- */
.hero{background:linear-gradient(135deg,#082652 0%,var(--blue) 55%,#0a5bb5 100%);
  color:#fff;padding:64px 0;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;pointer-events:none}
.hero h1{font-size:36px;margin-bottom:12px}
.hero p{font-size:17px;opacity:.9;max-width:640px}
.hero .btn{display:inline-block;margin-top:22px;background:var(--cyan);color:#04263a;
  padding:10px 26px;border-radius:6px;font-weight:600}
.hero .btn:hover{background:#fff;color:var(--blue)} /* 必须覆盖 .btn:hover 的深蓝底，否则深色字看不清 */
.hero.has-img{background-size:cover;background-position:center}
.hero.has-img::before{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(4,32,66,.85),rgba(4,32,66,.45))}
.hero .wrap{position:relative;z-index:1}

/* ---- 首页轮播（banner_mode=slides） ---- */
.slider{position:relative;overflow:hidden}
.slider .slide{display:none;min-height:340px;background-color:#082652;background-size:cover;
  background-position:center;position:relative;color:#fff;padding:76px 0}
.slider .slide.on{display:block;animation:slideIn .5s ease}
@keyframes slideIn{from{opacity:.3}to{opacity:1}}
.slider .slide::before{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(4,32,66,.82),rgba(4,32,66,.35))}
.slider .slide .wrap{position:relative;z-index:1}
.slider .slide h1{font-size:36px;margin-bottom:12px}
.slider .slide p{font-size:17px;opacity:.92;max-width:640px}
.slider .slide .btn{display:inline-block;margin-top:22px;background:var(--cyan);color:#04263a;
  padding:10px 26px;border-radius:6px;font-weight:600}
.slider .slide .btn:hover{background:#fff;color:var(--blue)}
.slider .arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:2;border:0;cursor:pointer;
  width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.18);color:#fff;font-size:20px;line-height:1}
.slider .arrow:hover{background:rgba(255,255,255,.4)}
.slider .prev{left:14px}.slider .next{right:14px}
.slider .dots{position:absolute;bottom:14px;left:0;right:0;text-align:center;z-index:2}
.slider .dots i{display:inline-block;width:9px;height:9px;margin:0 4px;border-radius:50%;
  background:rgba(255,255,255,.45);cursor:pointer}
.slider .dots i.on{background:#fff}

/* ---- 头部搜索框 ---- */
.site-search{display:flex}
.site-search input{border:1px solid var(--line);border-radius:6px;padding:5px 10px;font-size:13px;
  width:130px;outline:none}
.site-search input:focus{border-color:var(--cyan);width:180px;transition:width .2s}
@media(max-width:860px){.site-search input{width:90px}.site-search input:focus{width:110px}}

/* ---- 内容区块 ---- */
.section{padding:36px 0}
.section.alt{background:#fff}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;
  border-bottom:2px solid var(--blue);padding-bottom:8px;margin-bottom:18px}
.sec-head h2{font-size:20px;color:var(--blue)}
.sec-head h2::before{content:"";display:inline-block;width:5px;height:18px;
  background:var(--cyan);margin-right:8px;vertical-align:-3px;border-radius:2px}
.sec-head .more{font-size:13px;color:var(--mut)}

.grid{display:grid;gap:16px}
.grid.c2{grid-template-columns:1fr 1fr}
.grid.cats{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.grid.cats>div{display:flex;flex-direction:column}
.grid.cats .card{flex:1} /* 同一行各栏目卡片等高 */
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}

.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px 18px;
  transition:box-shadow .15s,transform .15s}
.card:hover{box-shadow:0 6px 20px rgba(11,61,145,.10);transform:translateY(-2px)}
.card .t{font-size:15px;font-weight:600;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .meta{margin-top:8px;font-size:12px;color:var(--mut)}
.card .sum{margin-top:8px;font-size:13px;color:var(--mut);
  display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

.list-item{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:11px 4px;
  border-bottom:1px dashed var(--line)}
.list-item:last-child{border-bottom:none}
.list-item a{color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.list-item a:hover{color:var(--blue)}
.list-item .d{color:var(--mut);font-size:13px;flex-shrink:0}
.li-main{flex:1;min-width:0}
.li-main a{display:block}
.li-thumb{width:66px;height:46px;object-fit:cover;border-radius:6px;flex-shrink:0;
  border:1px solid var(--line);background:#eef3fb}
.al-thumb{width:150px;height:96px;object-fit:cover;border-radius:8px;flex-shrink:0;
  border:1px solid var(--line);background:#eef3fb}
.al-sum{color:var(--mut);font-size:13px;margin-top:4px;
  display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---- 行情表 ---- */
.mkt-date{margin-bottom:14px;color:var(--mut);font-size:14px}
table.mkt{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);font-size:14px}
table.mkt th{background:#eef3fb;color:var(--blue);font-weight:600;padding:10px 12px;text-align:left;
  border-bottom:1px solid var(--line)}
table.mkt td{padding:10px 12px;border-bottom:1px solid var(--line)}
table.mkt tr:last-child td{border-bottom:none}
.mkt-cat{margin:22px 0 10px;font-size:16px;font-weight:700;color:var(--ink)}
.table-scroll{overflow-x:auto} /* 窄屏下宽表可横滑，不挤压变形 */
.up{color:var(--up)} .down{color:var(--down)} .flat{color:var(--flat)}
.note{font-size:12px;color:var(--mut);margin-top:14px}
.date-chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.date-chips a{padding:4px 12px;border:1px solid var(--line);border-radius:14px;font-size:13px;color:var(--mut)}
.date-chips a.on{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ---- 文章详情 ---- */
.article{background:#fff;border:1px solid var(--line);border-radius:10px;padding:28px}
.article h1{font-size:24px;line-height:1.4}
.article .meta{margin:14px 0 20px;color:var(--mut);font-size:13px;
  display:flex;gap:16px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:14px}
.article .body{font-size:15px}
.article .body p{margin:0 0 14px}
.article .body img{max-width:100%;height:auto}
.pn{display:flex;justify-content:space-between;gap:12px;margin-top:22px;font-size:14px}

/* ---- 侧边栏布局（协会介绍） ---- */
.cols{display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:start}
.side{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.side .s-title{background:var(--blue);color:#fff;padding:12px 16px;font-weight:600}
.side a{display:block;padding:11px 16px;color:var(--ink);border-bottom:1px solid var(--line);font-size:14px}
.side a:last-child{border-bottom:none}
.side a.on{color:var(--blue);background:#eef3fb;border-left:3px solid var(--cyan);padding-left:13px}
.side a:hover{color:var(--blue)}

/* ---- 货源 ---- */
.supply-card .row{display:flex;gap:14px;font-size:13px;color:var(--mut);margin-top:8px;flex-wrap:wrap}
.tag{display:inline-block;background:#eef3fb;color:var(--blue);border-radius:4px;
  padding:1px 8px;font-size:12px}
.price{color:var(--up);font-weight:700}
.kv{display:grid;grid-template-columns:96px 1fr;gap:8px 14px;font-size:14px}
.kv dt{color:var(--mut)}
.kv dd{margin:0}
.img-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px}
.img-grid img{width:100%;height:160px;object-fit:cover;border-radius:8px;border:1px solid var(--line)}

/* ---- 企业 ---- */
.ent-card{display:flex;gap:14px;align-items:flex-start}
.ent-logo{width:64px;height:64px;border-radius:10px;object-fit:cover;border:1px solid var(--line);
  flex-shrink:0;background:#eef3fb;display:grid;place-items:center;color:var(--blue);font-weight:700;font-size:22px}
.ent-hero{background:linear-gradient(120deg,var(--blue),#0a5bb5);color:#fff;padding:40px 0}
.ent-hero .in{display:flex;gap:20px;align-items:center}
.ent-hero .ent-logo{width:84px;height:84px;font-size:30px;background:rgba(255,255,255,.12);
  border-color:rgba(255,255,255,.3);color:#fff} /* 覆盖 .ent-logo 的深蓝字：蓝渐变底上深蓝字看不清 */
.ent-hero h1{font-size:26px}
.ent-hero .meta{opacity:.85;font-size:13px;margin-top:6px}
.ent-section{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px;margin-top:20px}
.ent-section h2{font-size:18px;color:var(--blue);margin-bottom:14px;
  border-left:4px solid var(--cyan);padding-left:10px}

/* ---- 表单 ---- */
.form{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px}
.f-row{margin-bottom:14px}
.f-row label{display:block;font-size:14px;color:var(--ink);margin-bottom:6px}
.f-row input,.f-row textarea,.f-row select{width:100%;padding:9px 12px;border:1px solid var(--line);
  border-radius:6px;font-size:14px;font-family:inherit}
.f-row input:focus,.f-row textarea:focus{outline:none;border-color:var(--blue)}
.btn{display:inline-block;background:var(--blue);color:#fff;border:none;border-radius:6px;
  padding:10px 28px;font-size:15px;cursor:pointer}
.btn:hover{background:var(--blue2);color:#fff}
/* <a class="btn"> 在 .list-item/.card 等设过 a 颜色的容器里会被盖掉白字（优先级 0,1,1 压过 .btn 的 0,1,0），
   深蓝底配深色字完全看不清 —— 用 a.btn 显式拉回白字，对 hero/slider 内青底深字按钮无影响（0,2+/0,3+ 更高） */
a.btn{color:#fff}
a.btn:hover{color:#fff}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:16px;font-size:14px}
.alert.ok{background:#e8f7ef;color:#0a7d4b;border:1px solid #b7e4cc}
.alert.err{background:#fdecec;color:#b32323;border:1px solid #f3c1c1}

/* ---- 分页 ---- */
.pagination{display:flex;gap:6px;justify-content:center;margin:26px 0;flex-wrap:wrap} /* 页数多时不横溢 */
.pagination a{min-width:34px;text-align:center;padding:6px 10px;border:1px solid var(--line);
  border-radius:6px;color:var(--ink);background:#fff;font-size:14px}
.pagination a.on{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ---- 页脚 ---- */
.site-footer{background:#101d2c;color:#aebfcf;margin-top:auto} /* 内容不足一屏时吸底；各区块自带下padding保持间距 */
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;padding:38px 0}
.f-brand{font-size:18px;color:#fff;font-weight:700;margin-bottom:6px}
.f-slogan{font-size:14px;color:var(--cyan);margin-bottom:8px}
.f-desc{font-size:13px}
.f-title{color:#fff;font-size:14px;margin-bottom:12px;font-weight:600}
.site-footer a{display:block;color:#aebfcf;font-size:13px;padding:3px 0}
.site-footer a:hover{color:#fff}
.footer-bar{border-top:1px solid rgba(255,255,255,.08);padding:14px 0;font-size:12px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.footer-bar .beian a{display:inline;color:#aebfcf;margin-left:14px}

/* ---- 响应式 ---- */
@media (max-width:960px){
  .grid.c4{grid-template-columns:1fr 1fr}
  .grid.c3{grid-template-columns:1fr 1fr}
  .cols{grid-template-columns:1fr}
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;
    flex-direction:column;padding:10px;border-bottom:1px solid var(--line);
    overflow-x:visible;max-height:none}
  .main-nav.open{display:flex}
  .al-thumb{width:104px;height:70px}
  .li-thumb{width:56px;height:40px}
  .img-grid{grid-template-columns:1fr 1fr}
  .img-grid img{height:110px}
  .nav-toggle{display:block}
  .header-inner{position:relative}
  .hero h1{font-size:26px}
  .grid.c2{grid-template-columns:1fr}
  .grid.cats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:18px}
}