/* ============================================================
   腾博token中枢 · 设计系统（ui-ux-pro-max: Minimalism & Swiss / Dark）
   palette: bg #020617 · card #0E1223 · border #1E293B · accent #22C55E
   type:    mono headings + sans body, system stacks (no webfonts)
   ================================================== */
:root {
  --bg: #020617;
  --bg-soft: #060B1A;
  --card: #0E1223;
  --card-2: #0B1020;
  --line: #1E293B;
  --line-soft: #16203A;
  --text: #F8FAFC;
  --muted: #94A3B8;
  --muted-2: #64748B;
  --accent: #22C55E;
  --accent-ink: #04140A;
  --cyan: #38BDF8;
  --amber: #FBBF24;
  --red: #F87171;
  --ring: rgba(34, 197, 94, .45);
  --sans: -apple-system, "SF Pro Text", "Segoe UI", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  --mono: "SF Mono", "Cascadia Code", "JetBrains Mono", Consolas, "Liberation Mono", "PingFang SC", "Microsoft YaHei", monospace;
  --r: 14px;
  --shadow: 0 1px 0 rgba(148, 163, 184, .04) inset, 0 12px 40px rgba(2, 6, 23, .5);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.75 var(--sans);
  -webkit-font-smoothing: antialiased;
  letter-spacing: .01em;
}
::selection { background: rgba(34, 197, 94, .25); }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; border-radius: 4px; }
button { font: inherit; cursor: pointer; }
code, pre, .mono { font-family: var(--mono); }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.mono-label {
  font-family: var(--mono); font-size: 12px; letter-spacing: .18em;
  color: var(--muted-2); text-transform: uppercase;
}

/* ---------- 导航 ---------- */
header.nav {
  position: sticky; top: 0; z-index: 60;
  background: rgba(2, 6, 23, .82); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-in { display: flex; align-items: center; gap: 26px; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand .logo {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, #16A34A, #22C55E 55%, #38BDF8);
  display: inline-flex; align-items: center; justify-content: center;
}
.brand .logo svg { width: 15px; height: 15px; stroke: #04140A; }
.brand .t { font-size: 15.5px; letter-spacing: .02em; }
.brand .t small { color: var(--muted-2); font-weight: 500; margin-left: 6px; font-size: 12px; }
.nav-links { display: flex; gap: 22px; }
.nav-links a { color: var(--muted); font-size: 14px; transition: color .2s; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-cta { margin-left: auto; display: flex; gap: 10px; align-items: center; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 20px; border-radius: 10px; font-size: 14px; font-weight: 600;
  border: 1px solid var(--line); background: var(--card); color: var(--text);
  transition: border-color .2s, background .2s, transform .15s;
}
.btn:hover { border-color: #334155; text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { background: #2EDE6E; border-color: #2EDE6E; }
.btn.ghost { background: transparent; }
.btn.small { padding: 6px 14px; font-size: 13px; border-radius: 8px; }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }

/* ---------- Hero ---------- */
.hero {
  position: relative; padding: 110px 0 90px; overflow: hidden;
  background:
    radial-gradient(900px 420px at 50% -80px, rgba(34, 197, 94, .09), transparent 65%),
    radial-gradient(700px 380px at 85% 10%, rgba(56, 189, 248, .06), transparent 60%),
    linear-gradient(var(--bg-soft), var(--bg));
}
.hero::before { /* 网格纹理 */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, .05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(720px 480px at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(720px 480px at 50% 0%, #000 30%, transparent 75%);
}
.hero .wrap { position: relative; }
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px; color: var(--accent);
  border: 1px solid rgba(34, 197, 94, .3); background: rgba(34, 197, 94, .07);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 26px;
}
.hero .eyebrow .pulse {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  animation: pulse 2.2s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
.hero h1 {
  font-family: var(--mono); font-size: clamp(32px, 5vw, 52px); line-height: 1.18;
  font-weight: 700; letter-spacing: -.01em; max-width: 820px;
}
.hero h1 .grad {
  background: linear-gradient(92deg, var(--accent), var(--cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .sub { color: var(--muted); font-size: 17px; max-width: 620px; margin: 22px 0 34px; }
.hero .cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* 终端卡片 */
.terminal {
  max-width: 680px; margin: 52px 0 0;
  background: var(--card-2); border: 1px solid var(--line); border-radius: var(--r);
  box-shadow: var(--shadow); overflow: hidden;
}
.terminal .bar {
  display: flex; align-items: center; gap: 7px; padding: 11px 16px;
  border-bottom: 1px solid var(--line-soft);
}
.terminal .bar i { width: 10px; height: 10px; border-radius: 50%; background: #1E293B; display: inline-block; }
.terminal .bar i:nth-child(1) { background: #3B4252; }
.terminal .bar .title { margin-left: 8px; color: var(--muted-2); font-size: 12px; font-family: var(--mono); }
.copy-btn {
  margin-left: auto; background: transparent; border: 1px solid var(--line);
  color: var(--muted); border-radius: 7px; padding: 3px 11px; font-size: 12px; font-family: var(--mono);
  transition: color .2s, border-color .2s;
}
.copy-btn:hover { color: var(--text); border-color: var(--accent); }
.terminal pre { padding: 20px 22px; overflow-x: auto; line-height: 2; font-size: 13.5px; }
.terminal .p { color: var(--accent); }         /* 提示符 */
.terminal .k { color: var(--cyan); }           /* 变量 */
.terminal .v { color: #E2E8F0; }
.terminal .s { color: var(--amber); }          /* 字符串 */
.terminal .c { color: #546075; }               /* 注释 */
.terminal .ok { color: var(--accent); }

/* 信任条 */
.trust { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: 12.5px; color: var(--muted);
  border: 1px solid var(--line-soft); border-radius: 999px; padding: 5px 14px;
  background: rgba(14, 18, 35, .6);
}
.chip svg { width: 13px; height: 13px; stroke: var(--accent); }

/* ---------- 区块 ---------- */
.section { padding: 96px 0; border-top: 1px solid var(--line-soft); }
.section .head { display: flex; align-items: baseline; gap: 18px; margin-bottom: 10px; }
.section .head .idx { font-family: var(--mono); color: var(--accent); font-size: 13px; }
.section h2 { font-family: var(--mono); font-size: 30px; font-weight: 700; letter-spacing: -.01em; }
.section .desc { color: var(--muted); max-width: 640px; margin-bottom: 40px; }

.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r);
  padding: 28px; transition: border-color .25s, transform .25s;
}
.card:hover { border-color: rgba(34, 197, 94, .4); transform: translateY(-2px); }
.card .ico {
  width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
  background: rgba(34, 197, 94, .09); border: 1px solid rgba(34, 197, 94, .22); margin-bottom: 18px;
}
.card .ico svg { width: 19px; height: 19px; stroke: var(--accent); }
.card h3 { font-size: 16.5px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 14px; }
.card a.more { display: inline-block; margin-top: 12px; font-size: 13px; font-family: var(--mono); }

/* ---------- 表格 ---------- */
.table-wrap { border: 1px solid var(--line); border-radius: var(--r); overflow-x: auto; background: var(--card); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 660px; }
.tbl th, .tbl td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line-soft); }
.tbl th {
  color: var(--muted-2); font-weight: 600; font-size: 12.5px; background: var(--card-2);
  font-family: var(--mono); letter-spacing: .06em; text-transform: uppercase;
}
.tbl tr:last-child td { border-bottom: none; }
.tbl tbody tr { transition: background .15s; }
.tbl tbody tr:hover { background: rgba(34, 197, 94, .03); }
.tbl td.num, .tbl th.num { text-align: right; font-family: var(--mono); }
.tbl .price { color: var(--accent); font-weight: 700; }
.tbl code { font-size: 13px; color: var(--cyan); }

.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 2px 10px; border-radius: 999px;
  font-size: 12px; font-family: var(--mono); border: 1px solid var(--line); color: var(--muted);
}
.badge.ok { color: var(--accent); border-color: rgba(34, 197, 94, .35); background: rgba(34, 197, 94, .06); }
.badge.warn { color: var(--amber); border-color: rgba(251, 191, 36, .35); background: rgba(251, 191, 36, .06); }
.badge.err { color: var(--red); border-color: rgba(248, 113, 113, .35); background: rgba(248, 113, 113, .06); }
.badge.info { color: var(--cyan); border-color: rgba(56, 189, 248, .35); }

/* ---------- 算账器 ---------- */
.calc {
  border: 1px solid var(--line); border-radius: var(--r); background: var(--card);
  padding: 26px; margin: 26px 0 14px;
}
.calc .row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.field label { display: block; color: var(--muted-2); font-size: 12.5px; margin-bottom: 8px; font-family: var(--mono); }
.field input, .field select {
  width: 100%; padding: 10px 13px; border-radius: 9px; border: 1px solid var(--line);
  background: var(--card-2); color: var(--text); font-size: 14px; font-family: var(--mono);
  transition: border-color .2s;
}
.field input:focus, .field select:focus { outline: none; border-color: var(--accent); }

/* ---------- FAQ ---------- */
details.faq {
  border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px;
  margin-bottom: 10px; background: var(--card); transition: border-color .2s;
}
details.faq[open] { border-color: rgba(34, 197, 94, .35); }
details.faq summary {
  cursor: pointer; font-weight: 600; font-size: 14.5px; list-style: none;
  display: flex; align-items: center; gap: 10px;
}
details.faq summary::before { content: "+"; font-family: var(--mono); color: var(--accent); font-weight: 700; }
details.faq[open] summary::before { content: "−"; }
details.faq p { color: var(--muted); margin-top: 10px; font-size: 14px; }

/* ---------- 文档页 ---------- */
.doc-body { display: grid; grid-template-columns: 220px 1fr; gap: 40px; padding: 56px 0 90px; }
.doc-toc { position: sticky; top: 86px; align-self: start; }
.doc-toc a { display: block; color: var(--muted); font-size: 13.5px; padding: 6px 0; }
.doc-toc a:hover { color: var(--text); text-decoration: none; }
.doc-sec { margin-bottom: 52px; }
.doc-sec h2 { font-family: var(--mono); font-size: 21px; margin-bottom: 6px; padding-top: 14px; }
.doc-sec h2 .hash { color: var(--muted-2); font-weight: 400; margin-right: 8px; }
.doc-sec p.lead { color: var(--muted); margin-bottom: 18px; font-size: 14.5px; }
.doc-sec p { margin-bottom: 12px; }
pre.snip {
  background: var(--card-2); border: 1px solid var(--line); border-radius: 12px;
  padding: 18px 20px; overflow-x: auto; font-size: 13.5px; line-height: 1.9; margin: 12px 0 20px;
}
pre.snip .c { color: #546075; }
pre.snip .k { color: var(--cyan); }
pre.snip .s { color: var(--amber); }
pre.snip .p { color: var(--accent); }

/* ---------- 控制台 ---------- */
.console-shell { display: grid; grid-template-columns: 224px 1fr; gap: 22px; padding: 34px 0 80px; }
.side { border: 1px solid var(--line); border-radius: var(--r); background: var(--card); padding: 16px; height: fit-content; }
.side .who { padding: 10px 12px 14px; border-bottom: 1px solid var(--line-soft); margin-bottom: 12px; }
.side .who .name { font-weight: 700; font-size: 14px; }
.side .who .bal { color: var(--muted); font-size: 13px; margin-top: 4px; }
.side a.item { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 9px; color: var(--muted); font-size: 14px; }
.side a.item svg { width: 16px; height: 16px; }
.side a.item:hover { background: var(--card-2); color: var(--text); text-decoration: none; }
.side a.item.on { background: var(--card-2); color: var(--accent); }
.panel { border: 1px solid var(--line); border-radius: var(--r); background: var(--card); padding: 26px; }
.panel + .panel { margin-top: 20px; }
.panel h3 { font-size: 16px; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.stat { background: var(--card-2); border: 1px solid var(--line-soft); border-radius: 11px; padding: 16px 18px; }
.stat .k { color: var(--muted-2); font-size: 12.5px; font-family: var(--mono); }
.stat .v { font-size: 24px; font-weight: 700; font-family: var(--mono); margin-top: 6px; }
.stat .v.green { color: var(--accent); }
.empty { text-align: center; color: var(--muted-2); padding: 34px 0; font-size: 14px; }
.login-note {
  display: flex; align-items: center; gap: 12px;
  border: 1px solid rgba(251, 191, 36, .3); background: rgba(251, 191, 36, .05);
  border-radius: 11px; padding: 14px 18px; color: var(--muted); font-size: 14px; margin-bottom: 20px;
}
.login-note svg { width: 17px; height: 17px; stroke: var(--amber); flex-shrink: 0; }

/* ---------- 页脚 ---------- */
footer.foot { border-top: 1px solid var(--line-soft); padding: 44px 0 54px; color: var(--muted-2); font-size: 13px; background: var(--bg-soft); }
.foot .cols { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.foot .col h4 { color: var(--muted); font-size: 12.5px; font-family: var(--mono); letter-spacing: .1em; margin-bottom: 10px; }
.foot .col a { display: block; color: var(--muted-2); padding: 3px 0; }
.foot .legal { margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--line-soft); line-height: 1.9; color: #475569; }

.note { color: var(--muted-2); font-size: 13px; }
.divider { border: none; border-top: 1px solid var(--line-soft); margin: 40px 0; }

@media (max-width: 900px) {
  .grid3 { grid-template-columns: 1fr; }
  .calc .row { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr; }
  .console-shell, .doc-body { grid-template-columns: 1fr; }
  .doc-toc { position: static; }
  .nav-links { display: none; }
  .section { padding: 64px 0; }
  .hero { padding: 72px 0 60px; }
}