/* ============================================================
   PreFluid 内页公共样式（列表页 / 详情页）
   与 index.html 设计语言一致：#1d4ed8 主蓝 + slate 中性 + 16px 卡片
   ============================================================ */
:root{
  --blue:#1d4ed8; --blue-d:#1e40af; --blue-dd:#0b2a6b;
  --ink:#0f172a; --ink2:#1e293b; --body:#475569; --muted:#64748b; --faint:#94a3b8;
  --line:#eef2f7; --line2:#e2e8f0; --soft:#f8fafc; --b50:#eff6ff; --b100:#dbeafe;
  --ease:cubic-bezier(.16,1,.3,1);
  /* 旧模板引用的变量别名：统一映射到本站设计令牌，避免 var() 落空 */
  --color-background-primary:#fff;
  --color-background-secondary:var(--soft);
  --color-border-tertiary:var(--line);
  --color-text-primary:var(--ink);
  --color-text-secondary:var(--muted);
  --font-mono:'SF Mono','JetBrains Mono','Menlo','Consolas',monospace;
}
.pf-wrap{max-width:1280px;margin:0 auto;padding:0 24px}
.pf-num{font-variant-numeric:tabular-nums}

/* ========== HERO ========== */
.pf-hero{position:relative;overflow:hidden;background:linear-gradient(118deg,#0b2a6b 0%,#14357f 48%,#1e40af 100%);color:#fff}
.pf-hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:58px 58px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 88%);mask-image:linear-gradient(180deg,#000,transparent 88%)}
.pf-hero-mark{position:absolute;right:26px;top:50%;transform:translateY(-50%);font-size:clamp(56px,9vw,116px);font-weight:800;
  letter-spacing:.02em;color:#fff;opacity:.06;pointer-events:none;user-select:none;line-height:1}
.pf-hero-in{position:relative;z-index:1;padding:52px 0 60px}
.pf-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:4px 12px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.2);font-size:11px;font-weight:700;letter-spacing:.14em}
.pf-hero h1{margin:16px 0 0;font-size:clamp(28px,4.6vw,44px);font-weight:800;letter-spacing:-.02em;line-height:1.14}
.pf-hero-sub{margin:12px 0 0;font-size:14.5px;line-height:1.75;color:rgba(255,255,255,.78);max-width:620px}
.pf-hero-stats{display:flex;flex-wrap:wrap;gap:0;margin-top:34px;border-top:1px solid rgba(255,255,255,.16);padding-top:22px}
.pf-hstat{padding-right:40px;margin-right:40px;border-right:1px solid rgba(255,255,255,.14)}
.pf-hstat:last-child{border-right:0;margin-right:0;padding-right:0}
.pf-hstat b{display:block;font-size:26px;font-weight:800;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.pf-hstat span{display:block;margin-top:3px;font-size:12px;color:rgba(255,255,255,.62);letter-spacing:.04em}
.pf-crumb{font-size:12.5px;color:var(--muted);padding:15px 0}
.pf-crumb a{color:var(--muted);text-decoration:none}
.pf-crumb a:hover{color:var(--blue)}
.pf-crumb i{font-style:normal;color:#cbd5e1;margin:0 7px}

/* ========== 布局 ========== */
.pf-layout{display:grid;grid-template-columns:262px minmax(0,1fr);gap:34px;align-items:start;padding-bottom:72px}
.pf-layout-wide{grid-template-columns:minmax(0,1fr) 320px;gap:40px;padding-bottom:72px}

/* ---- 产品侧栏：紧凑列表式 L1 一级分类 ---- */
.pf-l1-nav{display:flex;flex-direction:column;margin-top:4px;border-top:1px solid var(--line)}
.pf-l1-nav>a{display:flex;align-items:center;gap:12px;padding:11px 12px 11px 14px;
  border-bottom:1px solid var(--line);background:transparent;text-decoration:none;
  color:var(--body);transition:background .16s var(--ease),color .16s var(--ease),
  padding .16s var(--ease);position:relative;min-height:42px}
.pf-l1-nav>a:first-child{border-top:0}
.pf-l1-nav>a:hover{background:var(--soft);color:var(--blue-d)}
.pf-l1-nav>a.on{background:var(--b50);color:var(--blue-d);font-weight:600}
.pf-l1-nav>a.on::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:2px;
  background:var(--blue);border-radius:0 2px 2px 0}

/* 「全部产品」：与 L1 同款，仅以「·」点标识当前 */
.pf-l1-nav>a.pf-l1-all .pf-l1-mark{width:18px;flex:0 0 18px;display:flex;align-items:center;justify-content:center;
  font-style:normal;font-weight:700;color:#94a3b8;font-size:18px;line-height:1}
.pf-l1-nav>a.pf-l1-all.on .pf-l1-mark{color:var(--blue)}
.pf-l1-nav>a.pf-l1-all:hover .pf-l1-mark{color:var(--blue)}

/* 序号：细数字体（与上一版大号衬线对比，列表式更克制） */
.pf-l1-num{width:22px;flex:0 0 22px;font-family:'SF Mono','JetBrains Mono','Menlo','Consolas',monospace;
  font-size:12px;font-weight:500;color:#94a3b8;font-style:normal;letter-spacing:0;
  font-variant-numeric:tabular-nums;text-align:left;opacity:.85}
.pf-l1-nav>a.on .pf-l1-num{color:var(--blue);opacity:1}

.pf-l1 b{flex:1 1 auto;min-width:0;font-size:13.5px;font-weight:500;color:var(--ink);line-height:1.35;
  font-style:normal;letter-spacing:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pf-l1-nav>a:hover b{color:var(--blue-d)}
.pf-l1-nav>a.on b{color:var(--blue-d);font-weight:700}
.pf-l1-count{font-size:11.5px;color:var(--faint);font-weight:400;font-style:normal;
  font-variant-numeric:tabular-nums;flex:0 0 auto;min-width:24px;text-align:right}
.pf-l1-nav>a:hover .pf-l1-count{color:var(--blue)}
.pf-l1-nav>a.on .pf-l1-count{color:var(--blue);font-weight:600}

/* 隐藏箭头（用左侧蓝色标识条代替） */
.pf-l1-arrow{display:none}
.pf-side{position:sticky;top:88px;max-height:calc(100vh - 110px);overflow-y:auto;padding-right:2px}
.pf-side::-webkit-scrollbar{width:4px}
.pf-side::-webkit-scrollbar-thumb{background:var(--line2);border-radius:2px}
.pf-side::-webkit-scrollbar-thumb:hover{background:#bfdbfe}
.pf-side-h{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:14px}
.pf-side-h h2{margin:0;font-size:13px;font-weight:800;letter-spacing:.1em;color:var(--ink);text-transform:uppercase}
.pf-side-h span{font-size:11.5px;color:var(--faint);font-variant-numeric:tabular-nums}
.pf-cat{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.pf-cat li{border-bottom:1px solid var(--line)}
.pf-cat a{display:flex;align-items:center;gap:11px;padding:11px 12px 11px 10px;text-decoration:none;color:var(--body);
  border-left:2px solid transparent;transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease)}
.pf-cat a:hover{background:var(--soft);color:var(--blue);border-left-color:#bfdbfe}
.pf-cat a.on{background:var(--b50);border-left-color:var(--blue);color:var(--blue-d);font-weight:700}
.pf-cat i{font-style:normal;font-size:10.5px;font-weight:700;color:var(--faint);font-variant-numeric:tabular-nums;letter-spacing:.06em;min-width:17px}
.pf-cat a.on i,.pf-cat a:hover i{color:var(--blue)}
.pf-cat em{font-style:normal;font-size:13.5px;line-height:1.35;flex:1;min-width:0}
.pf-cat em b{display:block;font-weight:600;font-size:13.5px}
.pf-cat em s{display:block;text-decoration:none;font-size:11px;color:var(--faint);margin-top:2px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pf-side-cta{margin-top:20px;padding:18px;border:1px solid var(--line2);border-radius:14px;background:var(--soft)}
.pf-side-cta h3{margin:0 0 6px;font-size:13.5px;font-weight:800;color:var(--ink)}
.pf-side-cta p{margin:0 0 12px;font-size:12px;line-height:1.7;color:var(--muted)}
.pf-side-cta a{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;color:var(--blue);text-decoration:none}
.pf-side-cta a:hover{text-decoration:underline}

/* ---- 工具条 ---- */
.pf-bar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.pf-search{position:relative;flex:1;min-width:190px;max-width:320px}
.pf-search input{width:100%;height:38px;padding:0 34px 0 34px;border:1px solid var(--line2);border-radius:10px;
  font-size:13px;color:var(--ink2);background:#fff;outline:none;transition:border-color .18s,box-shadow .18s}
.pf-search input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(29,78,216,.1)}
.pf-search svg{position:absolute;left:11px;top:11px;width:16px;height:16px;color:var(--faint)}
.pf-search .pf-clr{position:absolute;right:8px;top:9px;width:20px;height:20px;border:0;border-radius:999px;background:#eef2f7;
  color:var(--muted);font-size:12px;line-height:20px;cursor:pointer;display:none;padding:0}
.pf-search.has .pf-clr{display:block}
.pf-sel{height:38px;padding:0 30px 0 12px;border:1px solid var(--line2);border-radius:10px;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2364748b' stroke-width='1.6'/%3E%3C/svg%3E") no-repeat right 11px center/11px;font-size:13px;color:var(--ink2);outline:none}
.pf-views{display:flex;border:1px solid var(--line2);border-radius:10px;overflow:hidden}
.pf-views button{width:38px;height:36px;border:0;background:#fff;color:var(--faint);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.16s}
.pf-views button+button{border-left:1px solid var(--line2)}
.pf-views button.on{background:var(--b50);color:var(--blue)}
.pf-count{margin-left:auto;font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.pf-count b{color:var(--blue);font-weight:700}

/* ---- 筛选 chips ---- */
.pf-filters{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0 4px}
.pf-filters>span{font-size:11.5px;color:var(--faint);letter-spacing:.06em;margin-right:2px}
.pf-chip{padding:5px 12px;border:1px solid var(--line2);border-radius:999px;background:#fff;font-size:12px;color:var(--body);cursor:pointer;transition:.16s var(--ease);text-decoration:none;display:inline-flex;align-items:center}
.pf-chip b{font-weight:500}
.pf-chip:hover{border-color:#bfdbfe;color:var(--blue);background:#fafcff}
.pf-chip.on{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:600}
.pf-chip.on b{font-weight:600}
.pf-filters+.pf-filters{margin-top:-4px}

/* L2 跳转式 chip（系列行） */
.pf-chip-l2{padding:7px 14px;font-size:12.5px}
.pf-chip-l2 b{font-weight:600;letter-spacing:0}

/* ---- 卡片网格 ---- */
.pf-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:18px}
.pf-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.pf-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  text-decoration:none;color:inherit;transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease)}
.pf-card:hover{transform:translateY(-3px);border-color:#bfdbfe;box-shadow:0 14px 30px -16px rgba(29,78,216,.22)}
.pf-shot{position:relative;aspect-ratio:4/3;background:var(--soft);display:flex;align-items:center;justify-content:center;overflow:hidden;border-bottom:1px solid var(--line)}
.pf-shot img{max-width:100%;max-height:100%;object-fit:contain;padding:14px;transition:transform .45s var(--ease)}
.pf-card:hover .pf-shot img{transform:scale(1.05)}
.pf-shot-cover img{width:100%;height:100%;object-fit:cover;padding:0}
.pf-shot-ph{font-size:13px;font-weight:700;color:#cbd5e1;letter-spacing:.04em}
.pf-flag{position:absolute;top:10px;left:10px;padding:3px 9px;border-radius:999px;background:var(--blue);color:#fff;font-size:10.5px;font-weight:700;letter-spacing:.04em}
.pf-flag-ghost{background:rgba(255,255,255,.92);color:var(--blue)}
.pf-card-b{padding:14px 16px 16px;display:flex;flex-direction:column;flex:1}
.pf-card-meta{font-size:11px;color:var(--faint);letter-spacing:.05em;margin-bottom:6px}
.pf-card h3{margin:0;font-size:15px;font-weight:700;color:var(--ink);letter-spacing:-.01em;line-height:1.35}
.pf-card-sub{margin:5px 0 0;font-size:12.5px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pf-specs{display:flex;flex-wrap:wrap;gap:6px;margin-top:11px}
.pf-specs span{font-size:11px;color:var(--blue-d);background:#fff;border:1px solid var(--b100);border-radius:999px;padding:2px 9px;white-space:nowrap}
.pf-card-go{margin-top:auto;padding-top:13px;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;font-weight:700;color:var(--blue)}
.pf-card-go i{font-style:normal;transition:transform .3s var(--ease)}
.pf-card:hover .pf-card-go i{transform:translateX(4px)}

/* ---- 列表视图 ---- */
.pf-grid.is-list{grid-template-columns:1fr;gap:12px}
.pf-grid.is-list .pf-card{flex-direction:row;align-items:stretch}
.pf-grid.is-list .pf-shot{width:212px;flex:0 0 212px;aspect-ratio:auto;min-height:150px;border-bottom:0;border-right:1px solid var(--line)}
.pf-grid.is-list .pf-card-b{padding:16px 20px;justify-content:center}
.pf-grid.is-list .pf-card-sub{-webkit-line-clamp:3}

/* ---- 新闻行 ---- */
.pf-rows{display:flex;flex-direction:column;gap:12px;margin-top:18px}
.pf-row{display:flex;gap:20px;align-items:stretch;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  text-decoration:none;color:inherit;transition:border-color .3s var(--ease),box-shadow .3s var(--ease),transform .3s var(--ease)}
.pf-row:hover{border-color:#bfdbfe;box-shadow:0 14px 30px -16px rgba(29,78,216,.2);transform:translateY(-2px)}
.pf-row-shot{width:216px;flex:0 0 216px;background:var(--soft);display:flex;align-items:center;justify-content:center;overflow:hidden;border-right:1px solid var(--line)}
.pf-row-shot img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease)}
.pf-row:hover .pf-row-shot img{transform:scale(1.04)}
.pf-row-shot-ph{font-size:12px;color:#cbd5e1;font-weight:600}
.pf-row-b{flex:1;padding:16px 22px 16px 0;display:flex;flex-direction:column;min-width:0}
.pf-row-tag{align-self:flex-start;font-size:11px;font-weight:600;color:var(--blue-d);background:var(--b50);border-radius:999px;padding:3px 10px;margin-bottom:8px}
.pf-row h3{margin:0;font-size:15.5px;font-weight:700;color:var(--ink);line-height:1.45;letter-spacing:-.01em}
.pf-row p{margin:7px 0 0;font-size:12.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pf-row-meta{margin-top:auto;padding-top:10px;font-size:11.5px;color:var(--faint);display:flex;gap:14px;font-variant-numeric:tabular-nums}
.pf-row-arrow{align-self:center;padding-right:22px;color:#cbd5e1;font-size:18px;transition:transform .3s var(--ease),color .2s}
.pf-row:hover .pf-row-arrow{transform:translateX(4px);color:var(--blue)}

/* ---- 空态 / 分页 ---- */
.pf-empty{display:none;text-align:center;padding:64px 20px;color:var(--faint)}
.pf-empty b{display:block;font-size:15px;color:var(--body);margin-bottom:8px;font-weight:700}
.pf-empty p{margin:0 0 18px;font-size:13px}
.pf-empty button{padding:9px 20px;border:1px solid var(--line2);border-radius:10px;background:#fff;font-size:13px;color:var(--body);cursor:pointer}
.pf-empty button:hover{border-color:var(--blue);color:var(--blue)}
.pf-pager{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:6px;margin-top:38px;font-size:14px}
.pf-pager:empty{display:none;margin-top:0}
.pf-pager>span{display:inline-flex;align-items:center}
.pf-pager a{display:inline-flex;min-width:38px;height:38px;padding:0 12px;align-items:center;justify-content:center;border:1px solid var(--line2);border-radius:10px;background:#fff;color:var(--body);text-decoration:none;transition:.18s}
.pf-pager a:hover{border-color:var(--blue);color:var(--blue)}
.pf-pager .page-num-current{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:700}
.pf-pager .page-status{color:var(--faint);font-size:12.5px;margin-right:4px}
.pf-pager .page-select{display:none}
.pf-pager a.pg-dis{opacity:.4;pointer-events:none}
.pf-pager .pg-prev,.pf-pager .pg-next{padding:0 14px}
.pf-pager .pg-ell{color:var(--faint);padding:0 2px;user-select:none}

/* ---- CTA ---- */
.pf-cta{background:linear-gradient(118deg,#0b2a6b,#1e40af);color:#fff;padding:52px 0}
.pf-cta h2{margin:0 0 8px;font-size:clamp(20px,2.8vw,28px);font-weight:800;letter-spacing:-.01em}
.pf-cta p{margin:0;font-size:14px;color:rgba(255,255,255,.78);max-width:560px;line-height:1.7}
.pf-cta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.pf-btn{box-sizing:border-box;padding:11px 22px;border:1px solid transparent;border-radius:10px;font-size:13.5px;font-weight:700;text-decoration:none;transition:.2s var(--ease);display:inline-flex;align-items:center;justify-content:center}
.pf-btn-1{background:#fff;color:var(--blue-d)}
.pf-btn-1:hover{background:var(--b100)}
.pf-btn-2{border:1px solid rgba(255,255,255,.4);color:#fff}
.pf-btn-2:hover{background:rgba(255,255,255,.12)}

/* ========== 详情页 ========== */
.pf-doc{font-size:14.5px;line-height:1.9;color:var(--body);min-width:0}
.pf-doc img{max-width:100%;height:auto;border-radius:12px}
.pf-doc h2,.pf-doc h3{color:var(--ink);letter-spacing:-.01em;line-height:1.4}
.pf-doc h2{font-size:19px;font-weight:800;margin:30px 0 12px}
.pf-doc h3{font-size:16px;font-weight:700;margin:24px 0 10px}
.pf-doc p{margin:0 0 14px}
.pf-doc table{width:100%;border-collapse:collapse;margin:16px 0;font-size:13.5px}
.pf-doc th,.pf-doc td{border:1px solid var(--line2);padding:9px 12px;text-align:left}
.pf-doc th{background:var(--soft);font-weight:700;color:var(--ink)}
.pf-doc pre{background:var(--soft);border:1px solid var(--line);border-radius:10px;padding:14px;overflow:auto;font-size:12.5px}
.pf-doc blockquote{margin:16px 0;padding:10px 16px;border-left:3px solid var(--b100);background:var(--b50);color:var(--blue-d);border-radius:0 10px 10px 0}
.pf-aside{position:sticky;top:88px;display:flex;flex-direction:column;gap:16px}
.pf-panel{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.pf-panel-h{padding:13px 18px;border-bottom:1px solid var(--line);font-size:13px;font-weight:800;color:var(--ink);letter-spacing:.02em;display:flex;align-items:center;justify-content:space-between}
.pf-panel-h span{font-size:11px;color:var(--faint);font-weight:500}
.pf-panel-b{padding:16px 18px}
.pf-params{margin:0;font-size:13px;width:100%}
.pf-params dt{font-size:11px;color:var(--faint);letter-spacing:.05em;margin-top:11px}
.pf-params dt:first-child{margin-top:0}
.pf-params dd{margin:3px 0 0;color:var(--ink2);font-weight:600;font-variant-numeric:tabular-nums;line-height:1.5}
.pf-rel{display:flex;flex-direction:column;gap:10px}
.pf-rel a{display:flex;gap:12px;align-items:center;padding:9px;border-radius:10px;text-decoration:none;color:inherit;transition:background .18s}
.pf-rel a:hover{background:var(--soft)}
.pf-rel-thumb{width:64px;height:48px;flex:0 0 64px;border-radius:8px;background:var(--soft);border:1px solid var(--line);overflow:hidden;display:flex;align-items:center;justify-content:center}
.pf-rel-thumb img{width:100%;height:100%;object-fit:cover}
.pf-rel-thumb span{font-size:10px;color:#cbd5e1;font-weight:700}
.pf-rel-t{min-width:0;flex:1}
.pf-rel-t b{display:block;font-size:12.5px;color:var(--ink2);font-weight:600;line-height:1.4;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.pf-rel-t s{display:block;text-decoration:none;font-size:11px;color:var(--faint);margin-top:3px}
.pf-cta-mini{background:linear-gradient(135deg,#0b2a6b,#1e40af);border-radius:14px;padding:20px;color:#fff}
.pf-cta-mini h4{margin:0 0 6px;font-size:14.5px;font-weight:800}
.pf-cta-mini p{margin:0 0 14px;font-size:12px;color:rgba(255,255,255,.75);line-height:1.7}
.pf-cta-mini a{display:block;text-align:center;padding:10px;border-radius:10px;background:#fff;color:var(--blue-d);font-size:13px;font-weight:700;text-decoration:none;transition:.2s}
.pf-cta-mini a:hover{background:var(--b100)}
.pf-crumbtags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.pf-crumbtags span{font-size:11.5px;color:rgba(255,255,255,.9);background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:4px 12px}

/* ---- 上下篇 / 返回 ---- */
.pf-navrow{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px}
.pf-navrow a{padding:14px 16px;border:1px solid var(--line);border-radius:12px;text-decoration:none;background:#fff;transition:border-color .2s}
.pf-navrow a:hover{border-color:#bfdbfe}
.pf-navrow a.empty{opacity:.45;pointer-events:none}
.pf-navrow s{display:block;text-decoration:none;font-size:11px;color:var(--faint);margin-bottom:5px}
.pf-navrow b{font-size:13px;color:var(--ink2);font-weight:600;line-height:1.45;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pf-navrow .next{text-align:right}

/* ---- 响应式 ---- */
@media(max-width:1180px){.pf-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:1023px){
  .pf-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .pf-side{position:static;margin-bottom:4px;min-width:0;max-width:100%}
  .pf-side-h{margin-bottom:10px}
  .pf-tree{position:relative}
  .pf-tree>summary{padding:10px 8px}
  .pf-tree-sub{padding-left:18px;margin-left:11px}
  .pf-tree-sub li::before{left:-13px;width:8px}
  .pf-side-cta{display:none}
  /* 竖向列表变体（如新闻页「热门阅读」）保持纵向 */
  .pf-cat.pf-hot{display:block;overflow:visible;border-top:0;padding-bottom:0}
  .pf-cat.pf-hot li{border-bottom:1px solid var(--line)}
  .pf-cat.pf-hot a{border:0;border-radius:0;padding:11px 12px 11px 10px;white-space:normal;border-left:2px solid transparent}
  .pf-layout-wide{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:56px}
  .pf-aside{position:static}
}
@media(max-width:720px){
  .pf-wrap{padding:0 16px}
  .pf-grid{grid-template-columns:1fr}
  .pf-grid.is-list .pf-shot{width:124px;flex:0 0 124px;min-height:118px}
  .pf-grid.is-list .pf-card-b{padding:13px 15px}
  .pf-hstat{padding-right:24px;margin-right:24px}
  .pf-hstat b{font-size:21px}
  .pf-count{margin-left:0;width:100%}
  .pf-hero-in{padding:36px 0 40px}
  .pf-row-shot{width:124px;flex:0 0 124px}
  .pf-row-b{padding:13px 15px 13px 0}
  .pf-row p{display:none}
  .pf-navrow{grid-template-columns:1fr}
  .pf-navrow .next{text-align:left}
}

/* ========== 询价弹窗 / Toast（product.html 与 productcenter.html 共用） ========== */
.pf-sku-modal{position:fixed;inset:0;background:rgba(11,42,107,.55);display:none;align-items:center;justify-content:center;z-index:9999;padding:20px}
.pf-sku-modal.on{display:flex}
.pf-sku-modal-box{background:#fff;border-radius:16px;width:min(560px,94vw);max-height:88vh;overflow:auto;color:var(--ink);
  box-shadow:0 24px 64px -16px rgba(11,42,107,.45);animation:pf-pop .18s var(--ease)}
@keyframes pf-pop{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
.pf-sku-modal-h{padding:16px 22px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;
  position:sticky;top:0;background:#fff;z-index:2}
.pf-sku-modal-h h3{margin:0;font-size:15px;font-weight:700;color:var(--ink)}
.pf-sku-modal-h b{cursor:pointer;color:var(--faint);font-size:22px;font-weight:400;line-height:1;padding:2px 9px;border-radius:8px;transition:.15s}
.pf-sku-modal-h b:hover{color:var(--ink);background:var(--soft)}
.pf-sku-modal-b{padding:20px 22px}
.pf-sku-codeview{background:var(--b50);border:1px solid var(--b100);border-radius:10px;padding:10px 14px;
  font-size:12.5px;color:var(--blue-d);margin-bottom:16px;line-height:1.65}
.pf-sku-codeview b{font-weight:600}
.pf-sku-modal-b form>label{display:block;font-size:12px;color:var(--body);font-weight:500;margin:14px 0 6px}
.pf-sku-modal-b form>label:first-of-type{margin-top:0}
.pf-sku-modal-b .pf-sku-form2 label{margin:0 0 6px}
.pf-sku-modal-b input,.pf-sku-modal-b textarea{width:100%;padding:9px 12px;border:1px solid var(--line2);border-radius:9px;
  font-size:13px;font-family:inherit;box-sizing:border-box;color:var(--ink2);background:#fff;transition:border-color .15s,box-shadow .15s}
.pf-sku-modal-b input:focus,.pf-sku-modal-b textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(29,78,216,.12)}
.pf-sku-modal-b textarea{resize:vertical;min-height:64px}
.pf-sku-modal-b .pf-sku-form2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pf-sku-modal-foot{padding:14px 22px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;
  position:sticky;bottom:0;background:#fff}
.pf-sku-modal-foot .pf-sku-btn{padding:10px 22px;border-radius:10px;font-size:13px;font-weight:600;cursor:pointer;
  transition:.18s var(--ease);font-family:inherit;border:1px solid transparent;display:inline-flex;align-items:center;gap:6px}
.pf-sku-modal-foot .pf-sku-btn-2{background:#fff;color:var(--body);border-color:var(--line2)}
.pf-sku-modal-foot .pf-sku-btn-2:hover{border-color:var(--blue);color:var(--blue)}
.pf-sku-modal-foot .pf-sku-btn-1{background:linear-gradient(135deg,#0b2a6b,#1e40af);color:#fff}
.pf-sku-modal-foot .pf-sku-btn-1:hover{background:linear-gradient(135deg,#092255,#1b3a9e)}
.pf-sku-modal-foot .pf-sku-btn-1:disabled{opacity:.6;cursor:not-allowed}
.pf-sku-toast{position:fixed;top:28px;left:50%;transform:translateX(-50%);background:var(--blue);color:#fff;
  padding:10px 20px;border-radius:10px;font-size:13px;font-weight:500;z-index:10000;display:none;
  box-shadow:0 12px 32px -8px rgba(29,78,216,.45)}
.pf-sku-toast.on{display:block;animation:pf-fade 2.6s}
@keyframes pf-fade{0%,100%{opacity:0}10%,90%{opacity:1}}
@media (max-width:760px){
  .pf-sku-modal{padding:12px}
  .pf-sku-modal-box{width:100%;max-height:92vh}
  .pf-sku-modal-b .pf-sku-form2{grid-template-columns:1fr;gap:0}
  .pf-sku-modal-foot .pf-sku-btn{flex:1;justify-content:center}
}

/* ---- 资料下载列表（短信验证码验证后下载） ---- */
.pf-files-sec{margin:28px 0 8px;padding:22px 24px;background:linear-gradient(135deg,#f8fafc,#eef2f7);border:1px solid #e2e8f0;border-radius:16px}
.pf-files-h{display:flex;align-items:baseline;gap:10px;margin:0 0 16px;font-size:16px;font-weight:700;color:#0f172a}
.pf-files-h span{font-size:11px;font-weight:600;letter-spacing:.08em;color:#1d4ed8;background:#dbeafe;padding:3px 9px;border-radius:6px}
.pf-files{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.pf-file{background:#fff;border:1px solid #e2e8f0;border-radius:12px;transition:.15s var(--ease)}
.pf-file:hover{border-color:#93c5fd;box-shadow:0 4px 12px -4px rgba(15,23,42,.08)}
.pf-dl{display:flex;align-items:center;gap:14px;padding:14px 18px;text-decoration:none;color:inherit;cursor:pointer}
.pf-file-ico{width:42px;height:42px;flex:0 0 42px;display:flex;align-items:center;justify-content:center;font-size:24px;background:linear-gradient(135deg,#dbeafe,#bfdbfe);border-radius:10px}
.pf-file-ico[data-ext$="pdf"]{background:linear-gradient(135deg,#fee2e2,#fecaca)}
.pf-file-ico[data-ext$="xls"],.pf-file-ico[data-ext$="xlsx"]{background:linear-gradient(135deg,#d1fae5,#a7f3d0)}
.pf-file-ico[data-ext$="doc"],.pf-file-ico[data-ext$="docx"]{background:linear-gradient(135deg,#dbeafe,#bfdbfe)}
.pf-file-ico[data-ext$="zip"],.pf-file-ico[data-ext$="rar"]{background:linear-gradient(135deg,#fde68a,#fcd34d)}
.pf-file-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.pf-file-name{font-size:14px;font-weight:600;color:#0f172a;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pf-file-desc{font-size:12px;color:#64748b;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pf-file-go{flex:0 0 auto;font-size:13px;font-weight:600;color:#1d4ed8;display:flex;align-items:center;gap:6px;padding:6px 14px;border-radius:8px;background:#eff6ff;transition:.15s}
.pf-dl:hover .pf-file-go{background:#1d4ed8;color:#fff}
.pf-dl-ico{font-size:13px}
@media(max-width:640px){
  .pf-dl{padding:12px 14px;gap:10px}
  .pf-file-ico{width:36px;height:36px;flex:0 0 36px;font-size:20px}
  .pf-file-name{font-size:13px}
  .pf-file-desc{font-size:11px}
}

/* ========== 单件询价条（产品详情右侧） ========== */
.pf-buybox{background:var(--color-background-secondary);border:0.5px solid var(--color-border-tertiary);border-radius:14px;padding:18px 22px;margin-bottom:24px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.pf-buybox-b{padding:11px 22px;border-radius:9px;border:none;background:#185fa5;color:#fff;font-size:13px;font-weight:500;cursor:pointer;font-family:inherit}
.pf-buybox-b:hover{background:#0c447c}
.pf-buybox-qty{display:flex;align-items:center;gap:6px}
.pf-buybox-qty input{width:80px;padding:8px 10px;border:1px solid #d0d9e5;border-radius:8px;font-size:13px;text-align:center}

/* ========== 产品详情：顶部（画廊 + 信息） ========== */
.pf-prod-top{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:start;margin-bottom:34px}
.pf-prod-left{position:sticky;top:88px}
.pf-gallery{background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}
.pf-gallery-main{aspect-ratio:4/3;background:var(--soft);border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.pf-gallery-main img{width:100%;height:100%;object-fit:contain;background:#fff}
.pf-gallery-thumbs{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.pf-gthumb{width:74px;height:74px;flex:0 0 74px;padding:0;border:2px solid var(--line);border-radius:10px;overflow:hidden;cursor:pointer;background:var(--soft);transition:.15s var(--ease)}
.pf-gthumb img{width:100%;height:100%;object-fit:cover}
.pf-gthumb.on{border-color:var(--blue)}
.pf-gallery-empty .pf-gl-ph{display:flex;align-items:center;justify-content:center;color:var(--faint);font-size:13px;aspect-ratio:4/3;background:var(--soft);border-radius:12px}
.pf-prod-right{min-width:0;display:flex;flex-direction:column;gap:14px}
.pf-prod-tags{display:flex;flex-wrap:wrap;gap:8px}
.pf-prod-cat{font-size:12px;color:var(--blue-d);background:var(--b50);border:1px solid var(--b100);border-radius:999px;padding:4px 12px;font-weight:600}
.pf-prod-pn{font-size:12px;color:var(--muted);background:var(--soft);border:1px solid var(--line2);border-radius:999px;padding:4px 12px}
.pf-prod-title{margin:0;font-size:clamp(22px,3vw,30px);font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.2}
.pf-prod-sub{margin:0;font-size:14px;line-height:1.7;color:var(--body)}
.pf-prod-keys{list-style:none;margin:6px 0 0;padding:16px 18px;display:grid;grid-template-columns:1fr 1fr;gap:12px 18px;background:var(--soft);border:1px solid var(--line);border-radius:14px}
.pf-prod-keys li{display:flex;flex-direction:column;gap:3px}
.pf-prod-keys span{font-size:11px;color:var(--faint);letter-spacing:.04em}
.pf-prod-keys b{font-size:14px;color:var(--ink2);font-weight:700;font-variant-numeric:tabular-nums}
.pf-prod-cta{display:flex;gap:12px;margin-top:6px}
.pf-prod-btn-1,.pf-prod-btn-2{display:inline-flex;align-items:center;justify-content:center;padding:12px 26px;border-radius:11px;font-size:14px;font-weight:700;text-decoration:none;transition:.2s var(--ease);cursor:pointer}
.pf-prod-btn-1{background:linear-gradient(135deg,#0b2a6b,#1e40af);color:#fff}
.pf-prod-btn-1:hover{background:linear-gradient(135deg,#092255,#1b3a9e)}
.pf-prod-btn-2{background:#fff;color:var(--blue-d);border:1px solid var(--b100)}
.pf-prod-btn-2:hover{background:var(--b50)}

/* ========== 产品参数网格 ========== */
.pf-spec-sec{margin:34px 0 8px}
.pf-sec-h{display:flex;align-items:baseline;gap:12px;margin:0 0 18px;font-size:18px;font-weight:800;color:var(--ink);border-left:4px solid var(--blue);padding-left:12px}
.pf-sec-h span{font-size:11px;font-weight:600;letter-spacing:.08em;color:var(--blue);background:var(--b50);padding:3px 10px;border-radius:6px}
.pf-spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border:1px solid var(--line2);border-radius:14px;overflow:hidden}
.pf-spec-i{display:flex;gap:12px;padding:13px 18px;border-bottom:1px solid var(--line);border-right:1px solid var(--line)}
.pf-spec-i:nth-child(2n){border-right:0}
.pf-spec-grid .pf-spec-i:nth-last-child(-n+2){border-bottom:0}
.pf-spec-i span{flex:0 0 96px;font-size:12.5px;color:var(--muted)}
.pf-spec-i b{flex:1;font-size:13px;color:var(--ink2);font-weight:600;line-height:1.6;word-break:break-word}

/* ========== 管路及灌装推荐表 ========== */
.pf-gztj-sec{margin:34px 0 8px}
.pf-gztj-wrap{border:1px solid var(--line2);border-radius:14px;overflow:hidden;background:#fff}
.pf-gztj-table{width:100%;border-collapse:collapse;font-size:13px}
.pf-gztj-table th{background:linear-gradient(135deg,#0b2a6b,#1e40af);color:#fff;font-weight:600;padding:12px 16px;text-align:left;white-space:nowrap}
.pf-gztj-table td{padding:12px 16px;color:var(--ink2);border-bottom:1px solid var(--line);font-weight:500;white-space:nowrap}
.pf-gztj-table td:first-child{font-weight:700;color:var(--ink)}
.pf-gztj-table tbody tr:nth-child(2n){background:#f8fafc}
.pf-gztj-table tbody tr:hover{background:var(--b50)}
.pf-gztj-table tbody tr:last-child td{border-bottom:0}
@media(max-width:560px){
  .pf-gztj-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .pf-gztj-table{min-width:560px}
}

/* ========== 产品视频 ========== */
.pf-videos-sec{margin:28px 0 8px;padding:22px 24px;background:linear-gradient(135deg,#f8fafc,#eef2f7);border:1px solid #e2e8f0;border-radius:16px}
.pf-videos-h{display:flex;align-items:baseline;gap:10px;margin:0 0 16px;font-size:16px;font-weight:700;color:#0f172a}
.pf-videos-h span{font-size:11px;font-weight:600;letter-spacing:.08em;color:#1d4ed8;background:#dbeafe;padding:3px 9px;border-radius:6px}
.pf-videos{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.pf-vd{display:flex;align-items:center;gap:14px;padding:12px 14px;background:#fff;border:1px solid #e2e8f0;border-radius:12px;text-decoration:none;color:inherit;cursor:pointer;transition:.15s var(--ease)}
.pf-vd:hover{border-color:#93c5fd;box-shadow:0 4px 12px -4px rgba(15,23,42,.08)}
.pf-vd-thumb{flex:0 0 64px;width:64px;height:64px;border-radius:10px;background:linear-gradient(135deg,#0b2a6b,#1e40af);display:flex;align-items:center;justify-content:center}
.pf-vd-play{color:#fff;font-size:22px;line-height:1}
.pf-vd-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}
.pf-vd-name{font-size:13.5px;font-weight:600;color:#0f172a;line-height:1.4;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.pf-vd-go{font-size:12px;color:#1d4ed8;text-decoration:none;font-style:normal}

/* ========== 短信验证码弹窗 / 视频弹窗 ========== */
.pf-sms-modal{position:fixed;inset:0;background:rgba(11,42,107,.55);display:none;align-items:center;justify-content:center;z-index:9999;padding:20px}
.pf-sms-modal.on{display:flex}
.pf-sms-box,.pf-video-box{background:#fff;border-radius:16px;width:min(460px,94vw);max-height:90vh;overflow:auto;color:var(--ink);box-shadow:0 24px 64px -16px rgba(11,42,107,.45);animation:pf-pop .18s var(--ease)}
.pf-sms-h{padding:15px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:#fff;z-index:2}
.pf-sms-h h3{margin:0;font-size:15px;font-weight:700}
.pf-sms-h b{cursor:pointer;color:var(--faint);font-size:22px;font-weight:400;line-height:1;padding:2px 9px;border-radius:8px;transition:.15s}
.pf-sms-h b:hover{color:var(--ink);background:var(--soft)}
.pf-sms-b{padding:20px}
.pf-sms-file{background:var(--b50);border:1px solid var(--b100);border-radius:10px;padding:10px 14px;font-size:13px;color:var(--blue-d);margin-bottom:16px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pf-sms-b label{display:block;font-size:12px;color:var(--body);font-weight:500;margin:14px 0 6px}
.pf-sms-b label:first-of-type{margin-top:0}
.pf-sms-b label i{color:#ef4444;font-style:normal}
.pf-sms-b input{width:100%;padding:10px 12px;border:1px solid var(--line2);border-radius:9px;font-size:14px;font-family:inherit;box-sizing:border-box;color:var(--ink2);background:#fff;transition:border-color .15s,box-shadow .15s}
.pf-sms-b input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(29,78,216,.12)}
.pf-sms-code{display:flex;gap:10px}
.pf-sms-code input{flex:1}
.pf-sms-code button{flex:0 0 116px;border:1px solid var(--blue);background:#fff;color:var(--blue);border-radius:9px;font-size:13px;font-weight:600;cursor:pointer;transition:.15s;font-family:inherit}
.pf-sms-code button:hover:not(:disabled){background:var(--b50)}
.pf-sms-code button:disabled{opacity:.55;cursor:not-allowed;border-color:var(--line2);color:var(--faint)}
.pf-sms-tip{margin:12px 0 0;font-size:12px;color:var(--muted);line-height:1.6}
.pf-sms-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.pf-sms-row>div>label{margin-top:0}
.pf-sms-select{width:100%;padding:10px 12px;border:1px solid var(--line2);border-radius:9px;font-size:14px;font-family:inherit;box-sizing:border-box;color:var(--ink2);background:#fff;transition:border-color .15s,box-shadow .15s;appearance:none;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748b' d='M6 8L0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:10px;padding-right:34px}
.pf-sms-select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(29,78,216,.12)}
@media (max-width:480px){.pf-sms-row{grid-template-columns:1fr;gap:0}}
.pf-sms-foot{padding:14px 20px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;position:sticky;bottom:0;background:#fff}
.pf-sms-btn-1,.pf-sms-btn-2{padding:10px 22px;border-radius:10px;font-size:13px;font-weight:600;cursor:pointer;transition:.18s var(--ease);font-family:inherit;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;text-decoration:none}
.pf-sms-btn-2{background:#fff;color:var(--body);border-color:var(--line2)}
.pf-sms-btn-2:hover{border-color:var(--blue);color:var(--blue)}
.pf-sms-btn-1{background:linear-gradient(135deg,#0b2a6b,#1e40af);color:#fff}
.pf-sms-btn-1:hover{background:linear-gradient(135deg,#092255,#1b3a9e)}
.pf-sms-btn-1:disabled{opacity:.6;cursor:not-allowed}
.pf-video-b{padding:14px;background:#0b2a6b}
.pf-video-b video{width:100%;border-radius:8px;background:#000;display:block;max-height:62vh}
.pf-video-box .pf-sms-foot{justify-content:space-between}

@media(max-width:1023px){
  .pf-prod-top{grid-template-columns:1fr;gap:22px}
  .pf-prod-left{position:static}
  .pf-spec-grid{grid-template-columns:1fr}
  .pf-spec-i{border-right:0}
  .pf-spec-grid .pf-spec-i:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .pf-spec-grid .pf-spec-i:last-child{border-bottom:0}
}
@media(max-width:560px){
  .pf-prod-keys{grid-template-columns:1fr}
  .pf-prod-cta .pf-prod-btn-1,.pf-prod-cta .pf-prod-btn-2{flex:1}
}