/* ======================================================================
   滚动条样式生成器 · 独立设计（紫色调音台工作台主题）
   ====================================================================== */
.sb{
  --ink:#241b3b; --sub:#6f6390; --faint:#a79cc4;
  --bg:#f5f2fc; --card:#ffffff; --card2:#efeafb; --line:#ddd2f2; --line2:#e8e0f7;
  --pri:#7c3aed; --pri-2:#a78bfa; --pri-soft:#eee6fd; --pri-ink:#5b21b6;
  --pink:#ec4899; --cyan:#06b6d4;
  --red:#c22525; --red-soft:#fbe9e9; --ok:#0e7a4d; --ok-soft:#e3f5ec;
  --r:18px;
  --shadow:0 1px 2px rgba(36,27,59,.05),0 14px 34px rgba(124,58,237,.10);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:15px; line-height:1.75;
  background:
    radial-gradient(820px 400px at 90% -140px, rgba(236,72,153,.10), transparent 60%),
    radial-gradient(700px 380px at -8% 130px, rgba(124,58,237,.10), transparent 60%),
    var(--bg);
  padding:0 16px 56px;
}
:root[data-theme="dark"] .sb{
  --ink:#ece7f8; --sub:#b3a6d4; --faint:#7d6fa3;
  --bg:#120e1e; --card:#1b152b; --card2:#221a36; --line:#342a4e; --line2:#2b2242;
  --pri:#a78bfa; --pri-2:#c4b5fd; --pri-soft:rgba(167,139,250,.14); --pri-ink:#ddd6fe;
  --pink:#f9a8d4; --cyan:#67e8f9;
  --red:#f87171; --red-soft:rgba(248,113,113,.12); --ok:#4ade80; --ok-soft:rgba(74,222,128,.12);
  --shadow:0 1px 2px rgba(0,0,0,.5),0 16px 36px rgba(0,0,0,.5);
}
.sb *{box-sizing:border-box;}
.sb-wrap{max-width:1160px;margin:0 auto;}
.sb code,.sb pre,input[type=text]{font-family:"JetBrains Mono",ui-monospace,Consolas,monospace;}

.sb-hero{margin-top:22px;text-align:center;padding:26px 20px 22px;background:var(--card);
  border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow);}
.sb-hero h1{margin:0 0 8px;font-size:clamp(24px,3.6vw,32px);font-weight:900;
  background:linear-gradient(95deg,var(--pri),var(--pink) 60%,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;}
.sb-hero p{margin:0 auto;color:var(--sub);font-size:15px;max-width:760px;}
.sb-hero p b{color:var(--pri-ink);}

.sb-desk{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:20px;}
@media (max-width:940px){.sb-desk{grid-template-columns:1fr;}}
.sb-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow);padding:18px 20px;}
.sb-card h2{margin:0 0 12px;font-size:16px;font-weight:900;display:flex;align-items:center;gap:8px;}
.sb-card h2::before{content:"";width:12px;height:12px;border-radius:4px;background:linear-gradient(135deg,var(--pri),var(--pink));}

.sb-preset{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;}
.sb-chip{border:1.5px solid var(--line);background:var(--card2);color:var(--sub);border-radius:999px;
  padding:5px 14px;font-size:13px;cursor:pointer;font-weight:700;transition:all .15s;}
.sb-chip:hover{border-color:var(--pri-2);color:var(--pri-ink);transform:translateY(-1px);}

.sb-ctl{display:grid;grid-template-columns:110px 1fr 64px;gap:10px;align-items:center;margin-bottom:12px;}
.sb-ctl label{font-size:13.5px;font-weight:700;color:var(--sub);}
.sb-ctl input[type=range]{width:100%;accent-color:var(--pri);}
.sb-ctl .sb-val{font-size:12.5px;font-weight:800;color:var(--pri-ink);text-align:right;font-family:ui-monospace,Consolas,monospace;}
.sb-color{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.sb-color .sb-cell{background:var(--card2);border:1px solid var(--line2);border-radius:12px;padding:8px 12px;display:flex;align-items:center;gap:10px;}
.sb-cell label{font-size:12.5px;font-weight:700;color:var(--sub);flex:1;}
.sb-cell input[type=color]{width:38px;height:28px;border:none;background:none;cursor:pointer;padding:0;}
.sb-cell .sb-hex{font-size:11.5px;font-family:ui-monospace,Consolas,monospace;color:var(--faint);}

.sb-switch{display:flex;gap:16px;flex-wrap:wrap;margin:14px 0 4px;}
.sb-switch label{font-size:13.5px;font-weight:700;color:var(--sub);display:flex;gap:6px;align-items:center;cursor:pointer;}
.sb-switch input{accent-color:var(--pri);}
.sb-switch select{padding:5px 8px;border-radius:8px;border:1.5px solid var(--line);background:var(--card2);color:var(--ink);font-size:13px;}

.sb-preview{height:230px;overflow-y:scroll;border:1px solid var(--line);border-radius:14px;background:var(--card2);padding:14px 16px;font-size:13.5px;color:var(--sub);}
.sb-preview p{margin:0 0 12px;}
.sb-preview p b{color:var(--pri-ink);}
.sb-note{font-size:12.5px;color:var(--faint);margin-top:8px;}

.sb-out{background:var(--ink);border-radius:14px;padding:14px 16px;font-size:12.5px;line-height:1.8;
  color:#e9d5ff;overflow:auto;white-space:pre;margin:0;min-height:210px;}
:root[data-theme="dark"] .sb-out{background:#0c0817;color:#ddd6fe;}
.sb-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.sb-btn{border:none;border-radius:12px;padding:9px 20px;font-size:14px;font-weight:800;cursor:pointer;transition:all .15s;}
.sb-btn-go{background:linear-gradient(95deg,var(--pri),var(--pink));color:#fff;}
.sb-btn-go:hover{filter:brightness(1.08);}
.sb-btn-ghost{background:var(--card2);color:var(--pri-ink);border:1.5px solid var(--line);}
.sb-btn-ghost:hover{border-color:var(--pri-2);}
.sb-msg{margin-top:10px;font-size:13px;min-height:20px;font-weight:700;}
.sb-msg.err{color:var(--red);}
.sb-msg.ok{color:var(--ok);}

.sb-faq{margin-top:34px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;box-shadow:var(--shadow);}
.sb-faq h2{margin:0 0 12px;font-size:19px;font-weight:900;}
.sb-faq h3{margin:18px 0 6px;font-size:15.5px;font-weight:800;color:var(--pri-ink);}
.sb-faq p{margin:0;color:var(--sub);font-size:14px;}
.sb-faq p b{color:var(--ink);}

/* ===== 新增：多格式导出 / 结构图（前缀 sbx） ===== */
.sbx-lab{margin-top:20px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  box-shadow:var(--shadow);padding:20px 22px;}
.sbx-lab h2{margin:0 0 8px;font-size:17px;font-weight:900;display:flex;align-items:center;gap:8px;}
.sbx-lab h2::before{content:"";width:12px;height:12px;border-radius:4px;background:linear-gradient(135deg,var(--pri),var(--pink));}
.sbx-lab > p{margin:0 0 12px;color:var(--sub);font-size:13.5px;}
.sbx-lab > p b{color:var(--pri-ink);}
.sbx-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:8px;}
.sbx-sel{padding:6px 10px;border-radius:10px;border:1.5px solid var(--line);background:var(--card2);
  color:var(--ink);font-size:13px;font-weight:700;cursor:pointer;}
.sbx-out{background:var(--ink);border-radius:14px;padding:14px 16px;font-size:12.5px;line-height:1.8;
  color:#e9d5ff;overflow:auto;white-space:pre;margin:0;min-height:160px;max-height:420px;
  font-family:"JetBrains Mono",ui-monospace,Consolas,monospace;}
:root[data-theme="dark"] .sbx-out{background:#0c0817;color:#ddd6fe;}
.sbx-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.sbx-svgwrap{margin-top:8px;overflow-x:auto;border:1px solid var(--line2);border-radius:14px;
  background:var(--card2);padding:8px;}
.sbx-svgwrap svg{display:block;width:100%;min-width:620px;height:auto;}
.sbx-facts{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px;}
.sbx-facts span{background:var(--card2);border:1px solid var(--line2);border-radius:999px;
  padding:4px 12px;font-size:12px;color:var(--sub);}
.sbx-facts b{color:var(--pri-ink);font-family:ui-monospace,Consolas,monospace;}
.sbx-msg{margin-top:10px;font-size:13px;min-height:20px;font-weight:700;}
.sbx-msg.err{color:var(--red);}
.sbx-msg.ok{color:var(--ok);}
@media (max-width:640px){
  .sbx-lab{padding:16px;}
  .sbx-svgwrap svg{min-width:560px;}
}