/* ==========================================================================
   声联互境 — 合规文档页共用样式（隐私政策 / 用户协议 / 权限说明 / 未成年人保护）
   与官网 index.html 同一套设计令牌，保证视觉一致。
   ========================================================================== */
:root{
  --bg:#05070d;
  --bg-soft:#080c16;
  --surface:rgba(255,255,255,.038);
  --surface-2:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#eef3ff;
  --muted:rgba(238,243,255,.62);
  --muted-2:rgba(238,243,255,.42);
  --cyan:#22d3ee;
  --blue:#3b82f6;
  --violet:#8b5cf6;
  --grad:linear-gradient(115deg,#22d3ee 0%,#3b82f6 52%,#8b5cf6 100%);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,"Segoe UI",Roboto,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --maxw:1120px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  font-size:16px;line-height:1.9;letter-spacing:.01em;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(34,211,238,.28)}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* 顶部氛围光 */
.doc-glow{
  position:fixed;inset:0 0 auto 0;height:440px;pointer-events:none;z-index:0;
  background:radial-gradient(58% 100% at 50% 0%,rgba(34,211,238,.15),rgba(139,92,246,.07) 55%,transparent 72%);
}

/* ============================ 导航 ============================ */
.lnav{
  position:sticky;top:0;z-index:50;border-bottom:1px solid var(--line);
  background:rgba(5,7,13,.84);backdrop-filter:blur(18px) saturate(160%);
}
.lnav-in{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em;flex:none}
.brand-mark{
  width:30px;height:30px;border-radius:10px;display:grid;place-items:center;position:relative;
  background:linear-gradient(150deg,rgba(34,211,238,.22),rgba(139,92,246,.22));
  border:1px solid rgba(34,211,238,.32);
}
.brand-mark::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px 2px rgba(34,211,238,.9)}
.brand-en{
  font-size:10.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;
  color:rgba(147,169,198,.78);align-self:flex-end;margin-bottom:2px;
  padding-left:7px;border-left:1px solid rgba(147,169,198,.28);
}
.lnav-right{display:flex;align-items:center;gap:14px;min-width:0}
.lnav-links{display:flex;align-items:center;gap:4px;min-width:0}
.lnav-links a{
  font-size:13.5px;color:var(--muted);padding:7px 12px;border-radius:999px;
  border:1px solid transparent;white-space:nowrap;transition:color .25s,background .25s,border-color .25s;
}
.lnav-links a:hover{color:var(--text);background:var(--surface)}
.lnav-links a.on{color:var(--text);background:var(--surface-2);border-color:rgba(34,211,238,.35)}
.lnav-back{
  font-size:13.5px;color:var(--muted);white-space:nowrap;padding:7px 14px;border-radius:999px;
  border:1px solid var(--line-strong);background:var(--surface);transition:color .25s,border-color .25s,transform .25s;
}
.lnav-back:hover{color:var(--cyan);border-color:rgba(34,211,238,.5);transform:translateX(-2px)}

/* ============================ 文档头 ============================ */
main{position:relative;z-index:1}
.doc-head{padding:62px 0 36px;border-bottom:1px solid var(--line)}
.doc-head .tag{
  display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);
  font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);margin-bottom:18px;
}
.doc-head .tag::before{content:"";width:20px;height:1px;background:currentColor;opacity:.6}
.doc-head h1{font-size:clamp(27px,4.4vw,40px);letter-spacing:-.035em}
.doc-head .meta{
  margin-top:16px;font-family:var(--mono);font-size:12.5px;color:var(--muted-2);
  letter-spacing:.02em;line-height:2;
}
.doc-head .meta span{white-space:nowrap}
.doc-head .lead{margin-top:18px;font-size:15px;color:var(--muted);max-width:740px;line-height:1.9}

/* ============================ 正文布局 ============================ */
.doc-body{
  display:grid;grid-template-columns:232px minmax(0,1fr);gap:52px;
  padding:46px 0 92px;align-items:start;
}
.toc{position:sticky;top:90px;max-height:calc(100vh - 122px);overflow:auto}
.toc h4{
  font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted-2);font-weight:600;margin:0 0 13px 12px;
}
.toc a{
  display:block;font-size:13.5px;color:var(--muted);padding:6px 12px;line-height:1.7;
  border-left:2px solid var(--line);transition:color .25s,border-color .25s,background .25s;
}
.toc a:hover{color:var(--text)}
.toc a.on{color:var(--text);border-left-color:var(--cyan);background:linear-gradient(90deg,rgba(34,211,238,.10),transparent)}

.content{max-width:764px;min-width:0}
.content section{margin-bottom:40px;scroll-margin-top:86px}
.content h2{
  font-size:18.5px;margin-bottom:15px;padding-left:15px;position:relative;
}
.content h2::before{
  content:"";position:absolute;left:0;top:.42em;bottom:.42em;width:3px;border-radius:2px;background:var(--grad);
}
.content h3{font-size:15px;margin:20px 0 8px;color:var(--text)}
.content p{font-size:14.8px;color:var(--muted);margin-bottom:12px;line-height:1.95}
.content strong{color:var(--text);font-weight:600}
.content ul{margin:8px 0 15px}
.content ul li{
  font-size:14.8px;color:var(--muted);line-height:1.9;padding-left:20px;
  position:relative;margin-bottom:7px;
}
.content ul li::before{
  content:"";position:absolute;left:4px;top:.8em;width:5px;height:5px;
  border-radius:50%;background:var(--cyan);opacity:.75;
}
.content ol{margin:8px 0 15px;padding-left:24px;color:var(--muted)}
.content ol li{font-size:14.8px;line-height:1.9;margin-bottom:7px}
.note{
  border:1px solid var(--line-strong);border-left:3px solid var(--cyan);border-radius:12px;
  background:var(--surface);padding:16px 18px;margin:16px 0 20px;
}
.note p{margin:0;font-size:14px;color:var(--muted)}
.note b{color:var(--text)}

/* 表格（权限清单 / SDK 清单） */
.tbl-wrap{overflow-x:auto;margin:8px 0 20px;border:1px solid var(--line);border-radius:14px}
table{width:100%;border-collapse:collapse;min-width:580px;font-size:13.8px}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);color:var(--muted);line-height:1.75;vertical-align:top}
th{color:var(--text);font-weight:600;background:var(--surface);white-space:nowrap}
tbody tr:last-child td{border-bottom:0}
td b{color:var(--text);font-weight:600}
.need-yes{color:#22d3ee;white-space:nowrap}
.need-no{color:rgba(238,243,255,.45);white-space:nowrap}

/* ============================ 页脚 ============================ */
.lfoot{border-top:1px solid var(--line);padding:42px 0;background:var(--bg-soft);position:relative;z-index:1}
.lfoot-in{
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--muted-2);line-height:1.9;
}
.lfoot-in a:hover{color:var(--cyan)}
.lfoot-links{display:flex;flex-wrap:wrap;gap:8px 18px}
.icp{display:inline-flex;align-items:center;gap:7px}
.icp svg{width:13px;height:13px;fill:currentColor;opacity:.8}

/* ============================ 回到顶部 ============================ */
.tt{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;background:var(--surface-2);border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);color:var(--text);cursor:pointer;z-index:60;
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .35s,transform .35s,border-color .3s,box-shadow .3s;
}
.tt.show{opacity:1;transform:none;pointer-events:auto}
.tt:hover{border-color:rgba(34,211,238,.5);box-shadow:0 14px 34px -14px rgba(34,211,238,.7)}
.tt svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ============================ 响应式 ============================ */
@media (max-width:940px){
  .doc-body{grid-template-columns:1fr;gap:0;padding:34px 0 74px}
  .toc{
    position:static;max-height:none;margin-bottom:34px;padding-bottom:24px;
    border-bottom:1px solid var(--line);
  }
  .toc h4{margin-left:0}
  .toc-list{display:flex;flex-wrap:wrap;gap:6px}
  .toc-list a{border-left:0;border-radius:10px;padding:8px 13px;background:var(--surface)}
  .toc-list a.on{background:var(--surface-2);color:var(--text)}
}
@media (max-width:760px){
  .lnav-in{height:auto;padding:10px 20px;flex-wrap:wrap;gap:10px}
  .lnav-right{width:100%;flex-direction:column;align-items:flex-start;gap:10px}
  .lnav-links{
    width:100%;flex-wrap:nowrap;overflow-x:auto;gap:6px;padding-bottom:4px;
    -webkit-overflow-scrolling:touch;
  }
  .lnav-links::-webkit-scrollbar{display:none}
  .lnav-links a{font-size:12.5px;padding:6px 11px;background:var(--surface);border-radius:999px}
  .lnav-back{align-self:flex-start}
  .toc{top:auto}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .doc-head{padding:40px 0 28px}
  .doc-head h1{font-size:26px}
  .content h2{font-size:17px}
  .content p,.content ul li,.content ol li{font-size:14.2px}
  th,td{padding:11px 13px;font-size:13.2px}
  .tt{right:16px;bottom:16px;width:44px;height:44px}
  .lfoot-in{justify-content:flex-start}
}
@media (max-width:400px){
  .wrap{padding:0 15px}
  .content p,.content ul li,.content ol li{font-size:13.9px}
}
@supports (padding:max(0px)){
  .tt{right:max(24px,env(safe-area-inset-right));bottom:max(24px,env(safe-area-inset-bottom))}
  .lfoot{padding-bottom:max(42px,env(safe-area-inset-bottom))}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .lnav-back:hover{transform:none}
}
@media print{
  .lnav,.toc,.tt,.doc-glow{display:none}
  body{background:#fff;color:#000}
  .content p,.content ul li,.content ol li,.content h3{color:#222}
  .content h2::before{background:#999}
}