/* ═══════════════════════════════════════════════════════════════
   深空 API · 站内文档页共用样式
   —— 与落地页同一套配色变量；独立静态页，nginx 托管
   —— 约束：无外链、无 localStorage/cookie、无 canvas、无 rAF
   ═══════════════════════════════════════════════════════════════ */
:root{
  --bg:#121A2B; --bg2:#16203A;
  --surface:#1B2540;
  --card:rgba(30,40,62,.72);
  --line:rgba(255,255,255,.14);
  --line2:rgba(255,255,255,.24);
  --fg:#FFFFFF; --fg2:#C4CEE0; --fg3:#95A1B9;
  --mint:#3DE8BE; --cyan:#4CC2FF; --violet:#9B8CFF;
  --warn:#FFC96B; --danger:#FF8A8A;
  --mono:"JetBrains Mono","Cascadia Code",Consolas,"SF Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI Variable Display","Segoe UI",
         "PingFang SC","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--fg); font-family:var(--sans);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  line-height:1.75; font-size:15.5px;
}
::selection{background:rgba(61,232,190,.28);color:#fff}

/* ── 背景（无 canvas，纯 CSS 渐变） ── */
.bgfx{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bgfx .b1{position:absolute;width:760px;height:760px;left:-14%;top:-24%;border-radius:50%;
  filter:blur(130px);background:radial-gradient(circle,rgba(61,232,190,.20),transparent 66%);
  animation:fx1 26s ease-in-out infinite}
.bgfx .b2{position:absolute;width:680px;height:680px;right:-12%;top:8%;border-radius:50%;
  filter:blur(130px);background:radial-gradient(circle,rgba(76,194,255,.17),transparent 66%);
  animation:fx2 32s ease-in-out infinite}
.bgfx .gr{position:absolute;inset:0;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:68px 68px;
  -webkit-mask-image:radial-gradient(ellipse 90% 55% at 50% 0%,#000 16%,transparent 72%);
  mask-image:radial-gradient(ellipse 90% 55% at 50% 0%,#000 16%,transparent 72%)}
@keyframes fx1{0%,100%{transform:translate(0,0)}50%{transform:translate(70px,50px)}}
@keyframes fx2{0%,100%{transform:translate(0,0)}50%{transform:translate(-60px,70px)}}

/* ── 布局 ── */
.shell{position:relative;z-index:1;max-width:1180px;margin:0 auto;
  padding:0 28px 100px;display:flex;gap:44px;align-items:flex-start}

/* ── 顶部 ── */
.head{position:relative;z-index:1;max-width:1180px;margin:0 auto;padding:30px 28px 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--fg);
  font-weight:750;font-size:17px;letter-spacing:.01em}
.brand .dot{width:11px;height:11px;border-radius:3px;transform:rotate(45deg);
  background:linear-gradient(135deg,var(--mint),var(--cyan));flex:none}
.brand small{font-weight:500;color:var(--fg3);font-size:12.5px;margin-left:2px}
.navlinks{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.navlinks a{color:var(--fg2);text-decoration:none;font-size:14.5px;
  transition:color .18s ease}
.navlinks a:hover{color:var(--mint)}
.navlinks a.cur{color:var(--fg);font-weight:650}

/* ── 侧栏 ── */
.side{flex:0 0 208px;position:sticky;top:26px;align-self:flex-start}
.side .ttl{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--fg3);font-weight:700;margin:0 0 12px 12px}
.side a{display:block;color:var(--fg2);text-decoration:none;font-size:14px;
  padding:7px 12px;border-radius:9px;border-left:2px solid transparent;
  transition:background .16s ease,color .16s ease}
.side a:hover{background:rgba(255,255,255,.05);color:var(--fg)}
.side a.on{background:rgba(61,232,190,.09);color:var(--mint);
  border-left-color:var(--mint);font-weight:650}
.side .grp{margin-top:20px}

/* ── 正文 ── */
.main{flex:1 1 auto;min-width:0;max-width:800px}
.main > h1{font-size:31px;line-height:1.28;letter-spacing:-.015em;font-weight:780;
  margin:6px 0 12px}
.lede{color:var(--fg2);font-size:16px;margin-bottom:8px}
.meta{color:var(--fg3);font-size:13px;font-family:var(--mono);
  padding-bottom:22px;margin-bottom:30px;border-bottom:1px solid var(--line)}

h2{font-size:22px;font-weight:730;letter-spacing:-.01em;
  margin:44px 0 14px;scroll-margin-top:24px}
h2:first-of-type{margin-top:8px}
h3{font-size:16.5px;font-weight:680;margin:26px 0 9px;color:var(--fg)}
p{color:var(--fg2);margin:0 0 13px}
p strong,li strong{color:var(--fg);font-weight:650}
a.inline{color:var(--mint);text-decoration:none;border-bottom:1px solid rgba(61,232,190,.32)}
a.inline:hover{border-bottom-color:var(--mint)}

ul,ol{color:var(--fg2);margin:0 0 15px;padding-left:22px}
li{margin:6px 0}
li::marker{color:var(--fg3)}

/* ── 卡片 / 提示块 ── */
.card{background:var(--card);border:1px solid var(--line);border-radius:15px;
  padding:20px 22px;margin:20px 0;backdrop-filter:blur(8px)}
.card > :last-child{margin-bottom:0}
.card .ch{font-weight:700;font-size:15px;color:var(--fg);margin-bottom:9px;
  display:flex;align-items:center;gap:9px}

.note{border-radius:13px;padding:15px 18px;margin:18px 0;font-size:14.5px;
  border:1px solid;border-left-width:3px}
.note > :last-child{margin-bottom:0}
.note .nh{font-weight:700;margin-bottom:6px;font-size:14.5px}
.note.info{background:rgba(76,194,255,.07);border-color:rgba(76,194,255,.28)}
.note.info .nh{color:var(--cyan)}
.note.warn{background:rgba(255,201,107,.075);border-color:rgba(255,201,107,.30)}
.note.warn .nh{color:var(--warn)}
.note.ok{background:rgba(61,232,190,.07);border-color:rgba(61,232,190,.30)}
.note.ok .nh{color:var(--mint)}
.note.danger{background:rgba(255,138,138,.075);border-color:rgba(255,138,138,.30)}
.note.danger .nh{color:var(--danger)}

/* ── 表格 ── */
.tw{overflow-x:auto;margin:18px 0;border:1px solid var(--line);border-radius:13px}
table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:460px}
th{background:rgba(255,255,255,.045);color:var(--fg);font-weight:660;
  text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);
  white-space:nowrap;font-size:13.5px}
td{padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.06);color:var(--fg2);
  vertical-align:top}
tr:last-child td{border-bottom:none}
tbody tr:hover td{background:rgba(255,255,255,.022)}

/* ── 步骤 ── */
.steps{counter-reset:s;margin:20px 0}
.step{counter-increment:s;position:relative;padding:0 0 20px 46px;
  border-left:1px solid var(--line);margin-left:15px}
.step:last-child{border-left-color:transparent;padding-bottom:0}
.step::before{content:counter(s);position:absolute;left:-15px;top:-3px;
  width:31px;height:31px;border-radius:50%;display:grid;place-items:center;
  background:var(--surface);border:1px solid var(--line2);color:var(--mint);
  font-family:var(--mono);font-size:13.5px;font-weight:700}
.step .sh{font-weight:680;color:var(--fg);margin-bottom:5px;font-size:15.5px}
.step p{margin-bottom:7px}

/* ── 代码 ── */
code{font-family:var(--mono);font-size:13.2px;background:rgba(255,255,255,.075);
  border:1px solid var(--line);border-radius:6px;padding:2px 6px;color:var(--fg);
  word-break:break-word}
pre{background:rgba(9,14,26,.72);border:1px solid var(--line);border-radius:13px;
  padding:16px 18px;overflow-x:auto;margin:16px 0;font-size:13.2px;line-height:1.65}
pre code{background:none;border:none;padding:0;font-size:inherit;color:var(--fg2)}

/* ── FAQ 折叠（CSS only，无 JS） ── */
.fq{border:1px solid var(--line);border-radius:13px;margin:11px 0;
  background:rgba(255,255,255,.02);overflow:hidden}
.fq > summary{padding:15px 18px;cursor:pointer;font-weight:640;color:var(--fg);
  font-size:15px;list-style:none;display:flex;justify-content:space-between;
  align-items:center;gap:14px;transition:background .16s ease}
.fq > summary:hover{background:rgba(255,255,255,.035)}
.fq > summary::-webkit-details-marker{display:none}
.fq > summary::after{content:"+";color:var(--fg3);font-family:var(--mono);
  font-size:17px;font-weight:400;flex:none;transition:transform .2s ease}
.fq[open] > summary::after{content:"–"}
.fq .fa{padding:0 18px 17px;color:var(--fg2);font-size:14.5px}
.fq .fa > :last-child{margin-bottom:0}

/* ── 底部 ── */
.foot{position:relative;z-index:1;max-width:1180px;margin:0 auto;
  padding:26px 28px 46px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--fg3);font-size:13.5px}
.foot a{color:var(--fg2);text-decoration:none}
.foot a:hover{color:var(--mint)}

/* ── 响应式 ── */
@media (max-width:900px){
  .shell{flex-direction:column;gap:26px;padding:0 20px 70px}
  .side{position:static;flex:none;width:100%;
    border:1px solid var(--line);border-radius:13px;padding:12px;
    background:rgba(255,255,255,.02)}
  .side a{display:inline-block;margin:2px 4px 2px 0;border-left:none;
    border-radius:8px;padding:6px 11px;font-size:13.5px}
  .side a.on{border-left:none}
  .side .ttl{margin:4px 0 8px 6px}
  .side .grp{margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}
  .head{padding:22px 20px 18px}
  .main > h1{font-size:25px}
  h2{font-size:19.5px;margin-top:36px}
  .foot{padding:22px 20px 40px;flex-direction:column;gap:8px}
  /* 窄屏下再压一档，避免中文长句 + 表格同时在 375px 上过挤 */
  body{font-size:15px}
  .main{max-width:100%}
  .card{padding:17px 18px}
  .note{padding:14px 16px}
  pre{padding:14px 15px;font-size:12.6px}
  .main > h1{font-size:23px}
  h2{font-size:18.5px}
  table{font-size:13.5px;min-width:420px}
}

/* ── 窄屏兜底：任何长串（URL / 代码 / 英文）都不得撑破布局 ──
   现在正文里最长英文串只有 26 字符（还都在 href 里不显示），
   但以后若有人往文档里贴长 URL，没有这道保护就会横向溢出。 */
@media (max-width:900px){
  .main{overflow-wrap:anywhere;word-break:break-word}
  a.inline,code{overflow-wrap:anywhere;word-break:break-word}
  .tw,pre{max-width:100%}
}