/* Wes Crypto — 原创深色科技金融风
   深蓝底 #0a1628 系 + 青绿 accent #91ecce
   标题 Space Grotesk / 正文 DM Sans，系统字体回退 */
:root {
  --bg: #0a1628;
  --bg-2: #0d1f38;
  --bg-3: #12294a;
  --surface: #10233d;
  --surface-2: #16304f;
  --line: #1e3a5c;
  --line-soft: #17304f;
  --text: #e8f0f8;
  --text-2: #a9bfd4;
  --text-3: #7d94ab;
  --accent: #91ecce;
  --accent-ink: #06281c;
  --accent-dim: #5cc9a4;
  --danger: #ff8a8a;
  --warn: #ffcf6e;
  --radius: 14px;
  --radius-sm: 9px;
  --maxw: 1080px;
  --font-title: "Space Grotesk", "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-body: "DM Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, monospace;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-tap-highlight-color: transparent;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
img, svg, video { max-width: 100%; }
h1, h2, h3, h4 { font-family: var(--font-title); line-height: 1.3; margin: 0 0 .6em; letter-spacing: .01em; }
h1 { font-size: 1.9rem; }
h2 { font-size: 1.45rem; margin-top: 1.6em; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
code { font-family: var(--font-mono); font-size: .88em; background: var(--bg-3); padding: .1em .35em; border-radius: 5px; }
pre { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 1rem; overflow-x: auto; }
pre code { background: none; padding: 0; }
blockquote { border-left: 3px solid var(--accent); margin: 1em 0; padding: .2em 0 .2em 1em; color: var(--text-2); }
hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }

/* ---------- 布局 ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }
main { padding: 24px 0 48px; min-height: 60vh; min-height: 60dvh; }
.section { margin: 40px 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.section-head h2 { margin: 0; }
.more-link { font-size: .9rem; white-space: nowrap; }
.lead { color: var(--text-2); font-size: 1.05rem; }
.muted { color: var(--text-3); font-size: .9rem; }
.empty { border: 1px dashed var(--line); border-radius: var(--radius); padding: 28px 20px; text-align: center; color: var(--text-2); }
.empty strong { display: block; color: var(--text); margin-bottom: 4px; }

/* ---------- 顶栏 / 导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  padding-top: var(--safe-top);
  background: rgba(10, 22, 40, .92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner { display: flex; align-items: center; gap: 12px; height: 56px; }
.brand { display: flex; align-items: center; gap: 9px; color: var(--text); font-family: var(--font-title); font-weight: 700; font-size: 1.15rem; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 8px; flex: none;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), #3ec98f);
  color: var(--accent-ink); font-size: .95rem; font-weight: 700;
}
.nav-toggle {
  margin-left: auto; background: none; border: 1px solid var(--line);
  color: var(--text); border-radius: 8px; width: 40px; height: 40px;
  font-size: 1.2rem; cursor: pointer; line-height: 1;
}
.site-nav { display: none; border-top: 1px solid var(--line-soft); }
.site-nav.open { display: block; }
.site-nav ul { list-style: none; margin: 0; padding: 6px 0 10px; }
.site-nav a { display: block; padding: 10px 4px; color: var(--text-2); font-size: .98rem; }
.site-nav a:hover, .site-nav a.active { color: var(--accent); text-decoration: none; }
.site-nav a.active { font-weight: 700; }

/* ---------- 按钮 / 卡片 ---------- */
.btn {
  display: inline-block; border: 0; cursor: pointer; border-radius: 999px;
  padding: 11px 20px; font-size: .95rem; font-weight: 700; font-family: var(--font-body);
  background: var(--accent); color: var(--accent-ink); text-align: center;
}
.btn:hover { text-decoration: none; filter: brightness(1.07); }
.btn-ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent-dim); }
.btn-sm { padding: 7px 14px; font-size: .88rem; }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
/* 一键复制按钮（关于页微信 / 三条账号）：与站内幽灵按钮同风格，小尺寸 */
.copy-btn {
  background: transparent; color: var(--accent); border: 1px solid var(--accent-dim);
  border-radius: 999px; padding: 4px 12px; cursor: pointer;
  font-size: .88rem; font-family: var(--font-body);
}
.copy-btn:hover { filter: brightness(1.12); }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px;
  display: flex; flex-direction: column; gap: 8px;
}
.card:hover { border-color: var(--accent-dim); }
.card h3 { margin: 0; font-size: 1.08rem; }
.card h3 a { color: var(--text); }
.card h3 a:hover { color: var(--accent); }
.card p { margin: 0; color: var(--text-2); font-size: .93rem; }
.card .meta { color: var(--text-3); font-size: .83rem; }
.grid { display: grid; gap: 14px; grid-template-columns: 1fr; }
.tag {
  display: inline-block; font-size: .78rem; padding: 2px 9px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--text-2); margin: 0 6px 6px 0;
}
.tag.active, .tag-btn.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 700; }
.tag-btn { cursor: pointer; background: transparent; font-family: var(--font-body); }

/* ---------- Hero / 搜索 ---------- */
.hero { padding: 28px 0 8px; }
.hero h1 { font-size: 2.1rem; margin-bottom: .35em; }
.hero h1 em { font-style: normal; color: var(--accent); }
.search-box { display: flex; gap: 8px; margin: 18px 0 6px; }
.search-box input {
  flex: 1; min-width: 0; background: var(--surface); color: var(--text);
  border: 1px solid var(--line); border-radius: 999px; padding: 12px 18px;
  font-size: 1rem; font-family: var(--font-body);
}
.search-box input::placeholder { color: var(--text-3); }
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 4px; }
.filter-row .tag-btn { margin: 0; }

/* ---------- 行情条 ---------- */
.ticker { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 16px 0; }
.ticker-item {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 12px 14px; min-width: 0;
}
.ticker-item .sym { font-family: var(--font-title); font-weight: 700; font-size: .95rem; }
.ticker-item .price { font-size: 1.05rem; font-weight: 700; margin-top: 2px; overflow-wrap: anywhere; }
.ticker-item .chg { font-size: .85rem; }
.up { color: var(--accent); }
.down { color: var(--danger); }
.ticker-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: .83rem; color: var(--text-3); }
.ticker-meta button { background: none; border: 1px solid var(--line); color: var(--text-2); border-radius: 999px; padding: 4px 12px; cursor: pointer; font-size: .83rem; font-family: var(--font-body); }
.ticker-unavailable { color: var(--warn); }

/* ---------- 文章 ---------- */
.article-list { display: grid; gap: 14px; }
.article-body { max-width: 760px; }
.article-body img { border-radius: var(--radius-sm); }
.article-body table { width: 100%; border-collapse: collapse; margin: 1em 0; font-size: .92rem; display: block; overflow-x: auto; }
.article-body th, .article-body td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; }
.article-body th { background: var(--bg-2); }
.article-body ul, .article-body ol { padding-left: 1.3em; margin: 0 0 1em; }
.article-body li { margin-bottom: .35em; }
.article-meta { color: var(--text-3); font-size: .88rem; margin-bottom: 18px; }
.article-sources { margin-top: 32px; border-top: 1px solid var(--line); padding-top: 16px; font-size: .9rem; color: var(--text-2); }
.article-sources li { overflow-wrap: anywhere; }
.progress-bar { position: fixed; top: 0; left: 0; height: 3px; background: var(--accent); width: 0; z-index: 60; }
.toc {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 18px; margin: 0 0 24px;
}
.toc h2, .toc h3 { margin: 0 0 8px; font-size: 1rem; }
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li { margin: 4px 0; }
.toc a { color: var(--text-2); font-size: .93rem; }
.toc a:hover { color: var(--accent); }

/* ---------- 表单 / 计算器 ---------- */
form label { display: block; font-size: .9rem; font-weight: 700; margin: 12px 0 4px; }
input[type="text"], input[type="number"], input[type="password"], input[type="url"],
select, textarea {
  width: 100%; background: var(--surface); color: var(--text);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 11px 12px; font-size: 1rem; font-family: var(--font-body);
}
textarea { min-height: 110px; resize: vertical; }
input::placeholder, textarea::placeholder { color: var(--text-3); }
.field-error { color: var(--danger); font-size: .88rem; margin-top: 4px; }
.form-error { color: var(--danger); margin: 10px 0; }
.form-ok { color: var(--accent); margin: 10px 0; }
.calc-grid { display: grid; gap: 16px; }
.calc { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.calc h2, .calc h3 { margin-top: 0; }
.calc .row { display: grid; gap: 12px; grid-template-columns: 1fr; }
.calc-result { margin-top: 16px; background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; }
.calc-result dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; font-size: .95rem; }
.calc-result dt { color: var(--text-3); }
.calc-result dd { margin: 0; font-weight: 700; overflow-wrap: anywhere; }
.calc-result .formula, .calc-result .explain { font-size: .88rem; color: var(--text-2); margin: 10px 0 0; }
.calc-result .formula code { background: var(--bg-3); }
.note-theoretical { color: var(--warn); font-size: .85rem; }

/* ---------- 表格 ---------- */
table.data { width: 100%; border-collapse: collapse; font-size: .92rem; display: block; overflow-x: auto; }
table.data th, table.data td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; white-space: nowrap; }
table.data th { background: var(--bg-2); }
table.data td { overflow-wrap: anywhere; }

/* ---------- 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 28px 0 calc(28px + var(--safe-bottom));
  color: var(--text-2); font-size: .88rem;
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-bottom: 16px; }
.site-footer nav a { color: var(--text-2); }
.risk { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; margin-bottom: 14px; background: var(--bg-2); }
.risk strong { color: var(--warn); }

/* ---------- 后台 ---------- */
.admin-shell { max-width: 860px; }
.admin-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.admin-tabs button {
  background: var(--surface); color: var(--text-2); border: 1px solid var(--line);
  border-radius: 999px; padding: 8px 16px; cursor: pointer; font-family: var(--font-body); font-size: .92rem;
}
.admin-tabs button.active { background: var(--accent); color: var(--accent-ink); font-weight: 700; border-color: var(--accent); }
.admin-list { display: grid; gap: 10px; margin: 16px 0; }
.admin-item { display: flex; align-items: center; justify-content: space-between; gap: 10px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 14px; }
.admin-item .actions { display: flex; gap: 8px; flex: none; }
.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 16px 0; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.stat .num { font-family: var(--font-title); font-size: 1.6rem; font-weight: 700; }
.stat .lbl { color: var(--text-3); font-size: .85rem; }

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  h1 { font-size: 2.3rem; }
  .hero h1 { font-size: 2.6rem; }
  .grid { grid-template-columns: repeat(2, 1fr); }
  .calc-grid { grid-template-columns: repeat(2, 1fr); }
  .calc .row { grid-template-columns: 1fr 1fr; }
  .stat-grid { grid-template-columns: repeat(4, 1fr); }
  .nav-toggle { display: none; }
  .site-nav { display: block; border-top: 0; }
  .site-nav ul { display: flex; gap: 2px; padding: 0; }
  .site-nav a { padding: 8px 10px; }
  .header-inner { height: 60px; }
  .site-header .container { display: flex; align-items: center; gap: 16px; }
  .site-nav { margin-left: auto; }
}
@media (min-width: 1024px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
  .article-layout { display: grid; grid-template-columns: 220px 1fr; gap: 32px; align-items: start; }
  .toc { position: sticky; top: 84px; margin: 0; }
  .hero { padding: 44px 0 12px; }
  main { padding: 32px 0 64px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}