/* ==========================================
   BestFeeder — 品牌补充层 v1.0
   只加不改：基础设计系统在 style.css，本文件只做品牌化与本站新增版式
   品牌色：BestFeeder 红（取自厂家彩页 logo）
   ========================================== */

:root{
  --bx-red:#c8102e;
  --bx-red-dark:#9c0c24;
  --bx-ink:#14181f;
  --bx-mut:#5b6472;
  --bx-line:#e4e8ee;
  --bx-bg-alt:#f6f8fb;
}

/* ===== 覆盖基础层的强调色 ===== */
.navbar .nav-links .btn-quote{background:var(--bx-red);}
.navbar .nav-links .btn-quote:hover{background:var(--bx-red-dark);}
.btn-primary{background:var(--bx-red);border-color:var(--bx-red);}
.btn-primary:hover{background:var(--bx-red-dark);border-color:var(--bx-red-dark);}
.content-body a{color:var(--bx-red);}
.content-body a:hover{text-decoration:underline;}

/* ===== 首页主视觉 ===== */
.bx-hero{background:linear-gradient(135deg,#14181f 0%,#242b36 55%,#3a1f24 100%);color:#fff;padding:72px 0 64px;}
.bx-hero h1{font-size:2.35rem;line-height:1.25;font-weight:700;margin-bottom:14px;letter-spacing:.2px;}
.bx-hero .bx-lead{font-size:1.05rem;color:rgba(255,255,255,.82);max-width:760px;margin-bottom:26px;}
.bx-hero .bx-cta{display:flex;gap:12px;flex-wrap:wrap;}
.bx-hero .bx-cta a{display:inline-block;padding:12px 22px;border-radius:8px;font-weight:600;font-size:.95rem;}
.bx-hero .bx-cta .bx-primary{background:var(--bx-red);color:#fff;}
.bx-hero .bx-cta .bx-primary:hover{background:var(--bx-red-dark);}
.bx-hero .bx-cta .bx-ghost{border:1px solid rgba(255,255,255,.35);color:#fff;}
.bx-hero .bx-cta .bx-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.bx-hero .bx-facts{display:flex;gap:34px;flex-wrap:wrap;margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.15);}
.bx-hero .bx-fact b{display:block;font-size:1.5rem;font-weight:700;color:#fff;line-height:1.2;}
.bx-hero .bx-fact span{font-size:.82rem;color:rgba(255,255,255,.7);}

/* ===== 产品线卡片 ===== */
.bx-lines{display:grid;grid-template-columns:repeat(auto-fit,minmax(258px,1fr));gap:20px;}
.bx-line{border:1px solid var(--bx-line);border-radius:12px;padding:24px;background:#fff;transition:box-shadow .25s ease,transform .25s ease;}
.bx-line:hover{box-shadow:0 10px 28px rgba(20,24,31,.09);transform:translateY(-2px);}
.bx-line h3{font-size:1.08rem;margin-bottom:8px;color:var(--bx-ink);}
.bx-line p{font-size:.9rem;color:var(--bx-mut);margin-bottom:14px;}
.bx-line .bx-line-meta{font-size:.8rem;color:var(--bx-red);font-weight:600;}

/* ===== 参数表 ===== */
.bx-spec-wrap{overflow-x:auto;margin:18px 0 26px;border:1px solid var(--bx-line);border-radius:10px;}
table.bx-spec{width:100%;border-collapse:collapse;font-size:.86rem;min-width:640px;}
table.bx-spec th,table.bx-spec td{padding:10px 12px;border-bottom:1px solid var(--bx-line);text-align:left;vertical-align:top;}
table.bx-spec thead th{background:var(--bx-bg-alt);font-weight:600;color:var(--bx-ink);white-space:nowrap;}
table.bx-spec tbody tr:last-child td{border-bottom:none;}
table.bx-spec tbody tr:hover{background:#fafbfd;}
table.bx-spec td.bx-num{white-space:nowrap;font-variant-numeric:tabular-nums;}
table.bx-spec .bx-hl{color:var(--bx-red);font-weight:600;}

/* ===== 分组小标题 ===== */
.bx-group{font-size:.95rem;font-weight:600;color:var(--bx-ink);margin:26px 0 10px;padding-left:10px;border-left:3px solid var(--bx-red);}

/* ===== 提示条（待确认项 / 使用说明） ===== */
.bx-note{background:var(--bx-bg-alt);border-left:3px solid var(--bx-red);padding:14px 16px;border-radius:0 8px 8px 0;font-size:.88rem;color:var(--bx-mut);margin:18px 0;}
.bx-note b{color:var(--bx-ink);}

/* ===== 产品图占位（真实图到位前用） ===== */
.bx-ph{border:1px dashed var(--bx-line);border-radius:10px;background:var(--bx-bg-alt);min-height:180px;
  display:flex;align-items:center;justify-content:center;color:#9aa4b2;font-size:.85rem;margin:16px 0;}

@media (max-width:768px){
  .bx-hero{padding:52px 0 44px;}
  .bx-hero h1{font-size:1.7rem;}
  .bx-hero .bx-facts{gap:22px;}
}

/* ===== 产品图与图库 ===== */
.bx-shot{margin:0 0 26px;}
.bx-shot img{width:100%;max-width:560px;height:auto;display:block;margin:0 auto;
  border-radius:12px;background:#fff;}
.bx-shot figcaption{font-size:.82rem;color:var(--bx-mut);margin-top:10px;text-align:center;}

.bx-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:18px;margin:22px 0 28px;}
.bx-gallery figure{margin:0;}
.bx-gallery img{width:100%;height:auto;border:1px solid var(--bx-line);border-radius:10px;background:#fff;
  transition:box-shadow .25s ease;}
.bx-gallery figure:hover img{box-shadow:0 8px 22px rgba(20,24,31,.10);}
.bx-gallery figcaption{font-size:.8rem;color:var(--bx-mut);margin-top:7px;text-align:center;line-height:1.45;}
.bx-gallery figcaption b{color:var(--bx-ink);display:block;font-size:.85rem;}

/* ===== 产品亮点（彩页原话） ===== */
.bx-hl-list{list-style:none;padding:0;margin:16px 0 20px;display:grid;gap:9px;}
.bx-hl-list li{position:relative;padding-left:26px;font-size:.93rem;color:var(--bx-ink);}
.bx-hl-list li::before{content:"★";position:absolute;left:0;top:0;color:var(--bx-red);font-size:.85rem;}

/* ===== 顶栏语言切换：下拉式（2026-09-22）===== */
/* 模板输出 .lang-toggle/.lang-menu 结构，但基础层没有对应样式，9 种语言会被排成一行。
   这里补齐下拉外观，并把层级算清：
     · .lang-menu 的 z-index 必须高于 .navbar 的 1000，否则展开后被吸顶导航盖住；
     · 不能给 .topbar 加 z-index，否则顶栏向上滚出视口时会压住吸顶导航。
   .topbar-lang 只设 position:relative、不设 z-index，因此不产生层叠上下文，
   下拉菜单得以在根层叠上下文里按 1200 参与比较。 */
.topbar-lang{position:relative;display:flex;align-items:center;gap:0}
.topbar .lang-toggle{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.9);font:inherit;font-size:.78rem;
  line-height:1;padding:5px 9px;border-radius:6px;cursor:pointer;
  transition:background .2s ease,border-color .2s ease,color .2s ease}
.topbar .lang-toggle:hover,.topbar .lang-toggle:focus-visible{background:rgba(255,255,255,.16);
  border-color:rgba(255,255,255,.34);color:#fff}
.topbar .lang-toggle:focus-visible{outline:2px solid rgba(255,255,255,.55);outline-offset:2px}
.topbar .lang-globe{font-size:.85rem;line-height:1}
.topbar .lang-cur{font-weight:600;white-space:nowrap}
.topbar .lang-caret{font-size:.62rem;line-height:1;opacity:.75;transition:transform .2s ease}
.topbar-lang.open .lang-caret{transform:rotate(180deg)}

.topbar .lang-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:196px;
  max-height:min(70vh,420px);overflow-y:auto;background:#fff;border:1px solid var(--bx-line);
  border-radius:10px;padding:6px;box-shadow:0 14px 38px rgba(15,20,28,.20);z-index:1200;
  display:grid;grid-template-columns:1fr;gap:2px;
  opacity:0;visibility:hidden;transform:translateY(-6px);pointer-events:none;
  transition:opacity .18s ease,transform .18s ease,visibility .18s}
.topbar-lang.open .lang-menu,
.topbar-lang:focus-within .lang-menu{opacity:1;visibility:visible;transform:none;pointer-events:auto}
.topbar .lang-menu::before{content:"";position:absolute;top:-5px;right:18px;width:10px;height:10px;
  background:#fff;border-left:1px solid var(--bx-line);border-top:1px solid var(--bx-line);
  transform:rotate(45deg)}
/* .topbar a 会给菜单链接套上浅色，菜单在白底上必须压回深色 */
.topbar .lang-menu a{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:6px;
  color:#3b424e;font-size:.8rem;line-height:1.25;white-space:nowrap;
  transition:background .15s ease,color .15s ease}
.topbar .lang-menu a:hover,.topbar .lang-menu a:focus-visible{background:var(--bx-bg-alt);color:var(--bx-ink)}
.topbar .lang-menu a.active,.topbar .lang-menu a[aria-current="true"]{background:rgba(200,16,46,.08);color:var(--bx-red)}
.topbar .lang-menu a:focus-visible{outline:2px solid var(--bx-red);outline-offset:-2px}
.topbar .lang-menu .lm-code{flex:0 0 auto;min-width:34px;text-align:center;font-size:.6rem;font-weight:700;
  letter-spacing:.4px;color:#7a8494;background:var(--bx-bg-alt);border:1px solid var(--bx-line);
  border-radius:4px;padding:2px 4px}
.topbar .lang-menu a.active .lm-code{color:var(--bx-red);border-color:rgba(200,16,46,.3);
  background:rgba(200,16,46,.08)}
.topbar .lang-menu .lm-name{flex:1 1 auto}

@media(max-width:520px){
  .topbar .lang-menu{min-width:174px;right:-4px}
  .topbar .lang-globe{display:none}
}

/* ===== 2026-09-22 站内搜索：header 搜索框 + 下拉建议 + /search/ 整页结果 ===== */
.search-box { position: relative; margin-left: auto; margin-right: 14px; }
.search-box input[type="search"] {
  width: 190px; padding: 7px 12px; font-size: .86rem; color: var(--text, #1a1a1a);
  background: #f4f5f7; border: 1px solid #e3e5e9; border-radius: 18px; outline: none;
  transition: width .18s ease, border-color .18s ease, background .18s ease;
}
.search-box input[type="search"]:focus { width: 240px; background: #fff; border-color: #c9ccd2; }
.search-results {
  display: none; position: absolute; top: calc(100% + 8px); right: 0; z-index: 60;
  width: 380px; max-height: 420px; overflow-y: auto; background: #fff;
  border: 1px solid #e3e5e9; border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,.10);
}
.search-results a {
  display: block; padding: 10px 14px; border-bottom: 1px solid #f2f3f5;
  text-decoration: none; color: inherit;
}
.search-results a:last-child { border-bottom: 0; }
.search-results a:hover { background: #f7f8fa; }
.search-results .sr-ic { margin-right: 7px; }
.search-results .sr-ti { font-weight: 600; font-size: .9rem; }
.search-results .sr-s { display: block; margin-top: 3px; font-size: .78rem; color: #7a7f87;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.search-results .sr-empty { padding: 14px; font-size: .85rem; color: #8a8f97; }
.search-results a.sr-all { font-size: .82rem; color: #0b6bcb; background: #fafbfc; }

.sr-wrap { max-width: 860px; margin: 0 auto; padding: 40px 20px 70px; }
.sr-h1 { font-size: 1.6rem; margin: 0 0 6px; }
.sr-sub { color: #7a7f87; font-size: .92rem; margin: 0 0 22px; }
.sr-box input[type="search"] {
  width: 100%; box-sizing: border-box; padding: 14px 18px; font-size: 1rem;
  border: 1.5px solid #e0e0e0; border-radius: 10px; outline: none;
}
.sr-box input[type="search"]:focus { border-color: #1a1a1a; }
.sr-count { margin: 20px 0 10px; font-size: .84rem; color: #8a8f97; }
.sr-hint { margin-top: 18px; color: #8a8f97; font-size: .9rem; }
.sr-hint a { color: #0b6bcb; }
.sr-empty { margin-top: 18px; color: #555; }
.sr-list .sr-item {
  display: flex; gap: 11px; padding: 13px 2px; border-bottom: 1px solid #f0f1f3;
  text-decoration: none; color: inherit;
}
.sr-list .sr-item:hover .sr-ti { color: #0b6bcb; }
.sr-list .sr-ti { font-weight: 600; display: block; }
.sr-list .sr-s { display: block; margin-top: 4px; font-size: .85rem; color: #7a7f87; }
.sr-list mark { background: #fff3bf; padding: 0 1px; }
@media (max-width: 900px) {
  .search-box { display: none; }
}