/* bestcssbuyspreadsheet.com — added header/categories/search/footer + subpage theme.
   Scoped under .bcs-* so it never collides with the compiled Astro/Vue island styles. */
:root{--bcs-blue:#6CB424;--bcs-blue-d:#5a9a1e;--bcs-dark:#14210b;--bcs-ink:#12210a;--bcs-line:#e6ecdc;--bcs-bg:#fff}
.bcs-header,.bcs-header *{box-sizing:border-box}
.bcs-header{position:sticky;top:0;z-index:9999;background:var(--bcs-bg);border-bottom:1px solid var(--bcs-line);
  font-family:"Noto Sans TC",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;box-shadow:0 1px 6px rgba(16,24,40,.05)}
.bcs-bar{max-width:1240px;margin:0 auto;display:flex;align-items:center;gap:20px;padding:10px 16px}
.bcs-brand{margin:0;display:flex;align-items:center;font-size:15px;font-weight:700}
.bcs-brand a{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--bcs-ink)}
.bcs-brand img{display:block;height:34px;width:auto}
.bcs-brand span{white-space:nowrap;font-weight:700}
@media(max-width:900px){.bcs-brand span{display:none}}
.bcs-nav{display:flex;gap:26px;margin-left:8px}
.bcs-nav a{text-decoration:none;color:var(--bcs-ink);font-weight:500;font-size:15px;padding:6px 0;border-bottom:2px solid transparent}
.bcs-nav a:hover,.bcs-nav a[aria-current=page]{color:var(--bcs-blue);border-bottom-color:var(--bcs-blue)}
.bcs-search{margin-left:auto;display:flex;align-items:center;background:#f2f4f7;border:1px solid var(--bcs-line);border-radius:999px;overflow:hidden}
.bcs-search input{border:0;background:transparent;padding:9px 14px;font-size:14px;width:200px;outline:none;font-family:inherit}
.bcs-search button{border:0;background:var(--bcs-blue);color:#fff;padding:0 15px;align-self:stretch;display:grid;place-items:center;cursor:pointer}
.bcs-search button svg{width:18px;height:18px;display:block}
.bcs-search button:hover{background:var(--bcs-blue-d)}
.bcs-burger{display:none;margin-left:auto;background:none;border:0;font-size:24px;line-height:1;cursor:pointer;color:var(--bcs-ink)}
.bcs-cats{max-width:1240px;margin:0 auto;display:flex;gap:8px;padding:0 16px 10px;overflow-x:auto;scrollbar-width:thin}
.bcs-cat{flex:0 0 auto;text-decoration:none;font-size:13px;font-weight:600;color:var(--bcs-ink);
  background:#f2f4f7;border:1px solid var(--bcs-line);border-radius:999px;padding:6px 14px;white-space:nowrap}
.bcs-cat:hover{background:var(--bcs-blue);color:#fff;border-color:var(--bcs-blue)}
@media(max-width:760px){
  .bcs-nav{position:fixed;inset:0 0 0 auto;width:min(78vw,320px);flex-direction:column;gap:0;background:#fff;
    transform:translateX(100%);transition:transform .2s;padding:70px 22px;box-shadow:-8px 0 24px rgba(0,0,0,.12);margin:0}
  .bcs-nav.open{transform:none}
  .bcs-nav a{padding:14px 0;border-bottom:1px solid var(--bcs-line)}
  .bcs-search input{width:120px}.bcs-burger{display:block}
}
/* hide the OLD compiled top nav (block-header) — replaced by .bcs-header. Island still hydrates hidden. */
.block-header{display:none!important}
/* ---------- subpage (guide/help/news) theme ---------- */
.bcs-page{font-family:"Noto Sans TC",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--bcs-ink);margin:0;background:#fff;line-height:1.65}
.bcs-hero{background:linear-gradient(135deg,var(--bcs-blue),var(--bcs-dark));color:#fff;padding:56px 16px}
.bcs-hero-in{max-width:820px;margin:0 auto}
.bcs-hero h1{margin:0 0 10px;font-size:34px;line-height:1.2}
.bcs-hero p{margin:0;font-size:17px;opacity:.94}
.bcs-main{max-width:820px;margin:0 auto;padding:40px 16px 10px}
.bcs-main h2{font-size:23px;margin:34px 0 12px}
.bcs-main h3{font-size:18px;margin:24px 0 8px}
.bcs-main p,.bcs-main li{font-size:16px}
.bcs-main ul,.bcs-main ol{padding-left:22px}
.bcs-main a:not(.bcs-cta){color:var(--bcs-blue)}
.bcs-cta{display:inline-block;background:var(--bcs-blue);color:#fff;text-decoration:none;font-weight:600;
  padding:12px 22px;border-radius:999px;margin:8px 0}
.bcs-cta:hover{background:#3b7bc4}
.bcs-faq{border:1px solid var(--bcs-line);border-radius:12px;padding:6px 18px;margin:14px 0}
.bcs-faq h3{margin:14px 0 6px}
.bcs-footer{background:var(--bcs-dark);color:#cbd2d9;font-family:"Noto Sans TC",system-ui,sans-serif;margin-top:48px;padding:46px 20px}
.bcs-finner{max-width:1240px;margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1.7fr;gap:30px}
.bcs-footer h2{color:#fff;font-size:15px;margin:0 0 12px}
.bcs-footer a{color:#cbd2d9;text-decoration:none}.bcs-footer a:hover{color:#fff}
.bcs-footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px;font-size:14px}
.bcs-footer ul.bcs-fcats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 14px}
.bcs-fbrand img{height:34px}.bcs-social a{color:var(--bcs-blue)}
.bcs-fbottom{max-width:1240px;margin:30px auto 0;border-top:1px solid #33402a;padding-top:18px;font-size:13px;color:#93a082;text-align:center}
@media(max-width:760px){.bcs-finner{grid-template-columns:1fr;gap:24px}.bcs-footer ul.bcs-fcats{grid-template-columns:repeat(2,1fr)}}
/* ---------- rich content (guide/help/news depth) ---------- */
.bcs-lead{font-size:18px;color:var(--bcs-ink);font-weight:500}
.bcs-video{position:relative;padding-top:56.25%;border-radius:14px;overflow:hidden;margin:22px 0;box-shadow:0 20px 44px -22px rgba(0,0,0,.5);background:#0b1206}
.bcs-video iframe,.bcs-video video{position:absolute;inset:0;width:100%;height:100%;border:0;object-fit:cover;background:#0b1206}
.bcs-cap{font-size:13px;color:var(--bcs-muted,#5d6b52);margin:-8px 0 24px;text-align:center}
.bcs-callout{display:flex;gap:12px;background:var(--bcs-green-l,#eef7e2);border:1px solid #d6e9be;border-left:4px solid var(--bcs-blue);
  border-radius:12px;padding:16px 18px;margin:20px 0}
.bcs-callout .ci{flex:0 0 auto;color:var(--bcs-blue-d)}
.bcs-callout p{margin:0;font-size:15px}
.bcs-grid2{display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center;margin:26px 0}
.bcs-grid2 h3{margin-top:0}
/* illustrated step cards */
.bcs-steps2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:24px 0}
.bcs-s2{border:1px solid var(--bcs-line);border-radius:16px;padding:20px;background:#fff}
.bcs-s2 .n{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--bcs-blue),var(--bcs-blue-d));margin-bottom:10px}
.bcs-s2 h3{font-size:16px;margin:0 0 6px}.bcs-s2 p{font-size:14px;color:#5d6b52;margin:0}
/* QC photo mockup */
.bcs-qcmock{background:#fff;border:1px solid var(--bcs-line);border-radius:16px;padding:16px;box-shadow:0 20px 40px -24px rgba(0,0,0,.4)}
.bcs-qcmock .qh{display:flex;align-items:center;gap:8px;font-weight:700;font-size:14px;margin-bottom:12px}
.bcs-qcmock .qh .ok{margin-left:auto;font-size:11px;font-weight:800;color:#22a35b;background:#eaf7db;padding:3px 9px;border-radius:999px}
.bcs-qcgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.bcs-qcgrid span{aspect-ratio:1;border-radius:10px;background:linear-gradient(135deg,var(--a,#dcefc4),var(--b,#a9d178))}
.bcs-qcphotos{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;align-items:start}
.bcs-qcphotos img{width:100%;height:auto;border-radius:10px;display:block;background:#eef3e6}
@media(max-width:560px){.bcs-qcphotos{grid-template-columns:repeat(2,1fr)}}
/* comparison table */
.bcs-table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;border:1px solid var(--bcs-line);border-radius:12px;overflow:hidden}
.bcs-table th,.bcs-table td{padding:11px 14px;text-align:left;border-bottom:1px solid var(--bcs-line)}
.bcs-table thead th{background:var(--bcs-green-l,#eef7e2);color:var(--bcs-ink);font-size:13px}
.bcs-table tbody tr:last-child td{border-bottom:0}
.bcs-table tbody tr:nth-child(even) td{background:#fafcf6}
/* news entries */
.bcs-news{display:flex;flex-direction:column;gap:18px;margin-top:8px}
.bcs-ni{border:1px solid var(--bcs-line);border-radius:16px;padding:22px 24px;background:#fff;transition:box-shadow .16s,transform .16s}
.bcs-ni:hover{transform:translateY(-2px);box-shadow:0 16px 32px -20px rgba(108,180,36,.5)}
.bcs-ni .date{display:inline-block;font-size:12px;font-weight:700;color:var(--bcs-blue-d);background:var(--bcs-green-l,#eef7e2);padding:4px 11px;border-radius:999px;margin-bottom:10px}
.bcs-ni h2{font-size:19px;margin:0 0 8px}
.bcs-ni p{margin:0 0 8px;font-size:15px;color:#33422a}
.bcs-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.bcs-tag{font-size:11.5px;font-weight:600;color:var(--bcs-blue-d);background:var(--bcs-green-l,#eef7e2);padding:3px 10px;border-radius:999px}
/* official image step flow */
.bcs-imgsteps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:22px 0}
.bcs-ist{border:1px solid var(--bcs-line);border-radius:14px;overflow:hidden;background:#fff;display:flex;flex-direction:column}
.bcs-ist img{display:block;width:100%;height:auto;background:#f4f8ee;border-bottom:1px solid var(--bcs-line)}
.bcs-ist .b{padding:13px 15px}
.bcs-ist .st{display:inline-block;font-size:11px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--bcs-blue),var(--bcs-blue-d));border-radius:999px;padding:2px 10px;margin-bottom:7px}
.bcs-ist h3{font-size:15px;margin:0 0 4px}
.bcs-ist p{font-size:13px;color:#5d6b52;margin:0}
/* quick tips checklist */
.bcs-tips{list-style:none;padding:0;margin:16px 0 8px;display:grid;grid-template-columns:1fr 1fr;gap:12px 26px}
.bcs-tips li{position:relative;padding-left:30px;font-size:15px;line-height:1.5}
.bcs-tips li::before{content:"\2713";position:absolute;left:0;top:1px;width:20px;height:20px;display:grid;place-items:center;
  background:var(--bcs-green-l,#eef7e2);color:var(--bcs-blue-d);border-radius:50%;font-size:12px;font-weight:800}
@media(max-width:640px){.bcs-tips{grid-template-columns:1fr}}
/* our-site "how to use" note */
.bcs-note{background:linear-gradient(135deg,#f4f8ee,#eaf6db);border:1px solid #d6e9be;border-radius:14px;padding:18px 20px;margin:22px 0}
.bcs-note strong{color:var(--bcs-blue-d)}
@media(max-width:900px){.bcs-imgsteps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.bcs-grid2,.bcs-steps2{grid-template-columns:1fr}.bcs-qcgrid{grid-template-columns:repeat(3,1fr)}.bcs-imgsteps{grid-template-columns:1fr}}