/* PCBA 资讯风模板 公共基座 —— 源自 style-source 设计稿，改样式请先改设计稿 */

:root{--brand:#E85D2A;--bg:#FAF7F2;--fg:#241A14;--muted:#8A7866;--card:#FFFFFF;--bd:#E6DCCE;--rad:2px;
--head:Georgia,"Times New Roman","Noto Serif SC","Source Han Serif SC",serif;--body:-apple-system,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;--mono:Consolas,"Courier New",monospace;}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--body);background:var(--bg);color:var(--fg);line-height:1.7;font-size:15px}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--head);line-height:1.3}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px}
.crumb{font-size:12px;color:var(--muted);margin-bottom:18px}
.crumb a:hover{color:var(--brand)}
.ph{display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:12px;letter-spacing:.2em;flex:none}
.ph span{opacity:.7}
/* --- 导航 --- */
.topbar{display:flex;justify-content:space-between;align-items:center;padding:16px 40px;background:var(--brand)}
.topbar .logo{font-family:var(--head);font-weight:700;font-size:20px;color:#fff!important}
.tbtag{margin-left:12px;font-size:12px;color:#ffffffcc;border:1px solid #ffffff66;padding:2px 10px;border-radius:999px}
.search{display:flex;gap:8px}
.search input{width:240px;padding:8px 14px;border:none;border-radius:6px;font-size:13px;font-family:var(--body)}
.search button{padding:8px 16px;border:none;border-radius:6px;background:#FAF7F2;color:#E85D2A;font-weight:700;font-size:13px;cursor:pointer;font-family:var(--body)}
.mainnav{display:flex;gap:34px;padding:14px 40px;background:var(--card);border-bottom:1px solid var(--bd);font-size:14px}
.mainnav a{color:var(--muted)}.mainnav a.on{color:var(--brand);font-weight:700}
.hairnav{display:flex;justify-content:space-between;align-items:center;padding:20px 48px}
.hairnav .logo{font-weight:700;font-size:19px}
.hairlinks{display:flex;gap:30px;font-size:13px}.hairlinks a{color:var(--muted)}
.hairlinks a.on{color:var(--brand);font-weight:700}
.hairline{height:1px;background:var(--bd)}
.burg{display:flex;justify-content:space-between;align-items:center;padding:18px 40px;position:relative}
.burg .logo{font-weight:700;font-size:19px}
.nvbox{display:none}
.nvbtn{display:flex;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
.nvbtn span{width:22px;height:2px;background:var(--fg)}
.burgmenu{display:none;position:absolute;top:100%;left:0;right:0;background:var(--card);border-bottom:1px solid var(--bd);flex-direction:column;padding:10px 40px;z-index:9}
.burgmenu a{padding:10px 0;color:var(--muted);border-bottom:1px solid var(--bd)}
.burgmenu a.on{color:var(--brand);font-weight:700}
.nvbox:checked ~ .burgmenu{display:flex}
.capsnav{display:flex;justify-content:space-between;align-items:center;padding:18px 40px;gap:20px;flex-wrap:wrap}
.capsnav .logo{font-weight:700;font-size:19px}
.caps{display:flex;gap:10px;flex-wrap:wrap}
.caps a{padding:7px 18px;border:1px solid var(--bd);border-radius:999px;font-size:13px;color:var(--muted)}
.caps a.on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:700}
.minitop{display:flex;justify-content:space-between;align-items:center;padding:16px 40px}
.minitop .logo{font-weight:700;font-size:18px;color:var(--brand)}
.topnote{font-size:12px;color:var(--muted)}
.bottombar{position:fixed;left:0;right:0;bottom:0;display:flex;background:var(--card);border-top:1px solid var(--bd);z-index:9}
.bottombar a{flex:1;text-align:center;padding:10px 0 12px;font-size:12px;color:var(--muted);display:flex;flex-direction:column;gap:3px;align-items:center}
.bottombar a.on{color:var(--brand);font-weight:700}
.bottombar i{width:16px;height:16px;border-radius:5px;background:var(--bd)}
.bottombar a.on i{background:var(--brand)}
.tworow .tr1{display:flex;justify-content:space-between;align-items:baseline;padding:18px 40px 0}
.tworow .logo{font-family:var(--head);font-weight:700;font-size:22px;color:var(--brand)}
.trdate{font-size:12px;color:var(--muted)}
.tr2{display:flex;gap:30px;padding:12px 40px 14px;border-bottom:2px solid var(--fg);margin-top:12px;font-size:14px}
.tr2 a{color:var(--muted)}.tr2 a.on{color:var(--fg);font-weight:700}
.logoon{display:flex;justify-content:space-between;align-items:baseline;padding:30px 64px 26px}
.logoon .logo{font-weight:700;font-size:17px;color:var(--brand)}
.volnote{font-size:12px;color:var(--muted)}
.icongrid{display:flex;justify-content:space-between;align-items:center;padding:14px 40px;border-bottom:1px solid var(--bd)}
.icongrid .logo{font-weight:700;font-size:18px;color:var(--brand)}
.igrid{display:flex;gap:10px}
.igrid a{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 12px;border-radius:8px;font-size:11px;color:var(--muted)}
.igrid a b{width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:8px;background:var(--bd);color:var(--fg);font-size:12px}
.igrid a.on{color:var(--brand)}.igrid a.on b{background:var(--brand);color:#fff}
/* --- 页脚 --- */
.foot{display:flex;justify-content:space-between;padding:22px 40px;border-top:1px solid var(--bd);color:var(--muted);font-size:12px;flex-wrap:wrap;gap:8px}
.bigfoot{background:#241A14;color:#FAF7F2;margin-top:60px}
.bigfoot .fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;max-width:1200px;margin:0 auto;padding:44px 40px}
.bigfoot h4{font-size:14px;margin-bottom:14px;opacity:.9}
.bigfoot .fcol a{display:block;font-size:13px;opacity:.65;padding:4px 0}
.bigfoot .fcol p{font-size:13px;opacity:.6}
.bigfoot .fbar{border-top:1px solid #ffffff22;display:flex;justify-content:space-between;padding:16px 40px;font-size:12px;opacity:.55;max-width:1200px;margin:0 auto}
/* --- 文章页 --- */
.artwrap{max-width:860px;margin:0 auto;padding:44px 40px 60px}
.artwrap h1{font-size:32px;margin:10px 0 14px}
.ameta{display:flex;gap:16px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.ameta b{color:var(--brand)}
.artbody p{margin:16px 0;font-size:15px;color:var(--fg)}
.artbody h2{font-size:21px;margin:30px 0 6px;padding-left:12px;border-left:4px solid var(--brand)}
.tags{display:flex;gap:10px;margin-top:34px;flex-wrap:wrap}
.tags a{font-size:12px;padding:6px 14px;border-radius:999px;background:var(--card);border:1px solid var(--bd);color:var(--muted)}
.pn{display:flex;justify-content:space-between;margin-top:36px;padding-top:20px;border-top:1px solid var(--bd);font-size:13px;color:var(--muted)}
.pn a:hover{color:var(--brand)}
@media(max-width:900px){.wrap{padding:0 20px}.topbar,.hairnav,.burg,.capsnav,.minitop,.tworow .tr1,.tr2,.logoon,.icongrid,.foot{padding-left:20px;padding-right:20px}
.search input{width:140px}.bigfoot .fgrid{grid-template-columns:1fr;padding:30px 20px}.artwrap{padding:24px 20px 40px}}