/* ═══════════════════════════════════════════════════════════
   MEME-Quant  ·  全站统一样式
   设计语言对齐 OKX 官网：纯黑底 · 蓝色主色 · 极简边框
═══════════════════════════════════════════════════════════ */

/* ── 色彩系统 ──────────────────────────────────────────── */
:root {
  /* OKX Brand */
  --okx-blue:   #00ff66;
  --okx-blue2:  #00cc52;
  --okx-white:  #FFFFFF;

  /* 背景层次（纯黑体系） */
  --bg:    #000000;
  --bg2:   #0F1014;
  --bg3:   #161619;
  --bg4:   #1C1C1F;
  --bg5:   #232328;

  /* 边框（极淡白色，OKX 风格）*/
  --border:  rgba(255,255,255,.07);
  --border2: rgba(255,255,255,.13);

  /* 文字 */
  --text:   #FFFFFF;
  --text2:  #C0C4CC;
  --muted:  #8B9196;
  --dim:    #5A5E65;
  --faint:  rgba(255,255,255,.03);

  /* 语义色 */
  --green:  #00ff66;
  --red:    #ff3366;
  --yellow: #ffa500;
  --blue:   #00ff66;
  --orange: #ffa500;

  /* 向后兼容 Binance 变量名 */
  --bnb-yellow:  #00ff66;
  --bnb-yellow2: #00993d;
  --bnb-green:   #00ff66;
  --bnb-red:     #ff3366;
  --bnb-blue:    #00ff66;

  /* 圆角 */
  --r:    6px;
  --r-lg: 10px;
  --r-xl: 14px;

  /* 阴影 */
  --shadow:    0 4px 24px rgba(0,0,0,.7);
  --shadow-sm: 0 2px 10px rgba(0,0,0,.5);
}

/* ── 重置 ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'OKX Sans', 'SF Pro Display', 'Inter',
               -apple-system, BlinkMacSystemFont,
               'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; }
input, select, textarea { font-family: inherit; }

/* ── 顶部导航 ──────────────────────────────────────────── */
.navbar {
  display: flex;
  align-items: center;
  background: rgba(15, 16, 20, 0.6);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 0 24px;
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 200;
  gap: 0;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

/* Logo */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: 40px;
  flex-shrink: 0;
  text-decoration: none;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.brand:hover {
  transform: translateY(-1px);
  opacity: 0.9;
}
.brand-logo { 
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,255,102, 0.15);
}
.brand-text {
  font-size: 26px;
  font-weight: 900;
  color: #FFFFFF;
  letter-spacing: 0.5px;
  white-space: nowrap;
  font-family: 'Montserrat', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  text-shadow: 0 2px 10px rgba(255, 255, 255, 0.1);
}
a.brand .brand-text .brand-text__quant {
  background: linear-gradient(135deg, #00ff66 0%, #00cc52 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 900;
  font-style: italic;
  margin-left: 2px;
  filter: drop-shadow(0 2px 8px rgba(0,255,102, 0.3));
}

/* 导航链接 */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  flex: 1;
  overflow: hidden;
  height: 64px;
}
.nav-links li { height: 100%; display: flex; align-items: center; }
.nav-links a {
  display: flex;
  align-items: center;
  height: 36px;
  padding: 0 16px;
  color: var(--muted);
  font-size: 13.5px;
  font-weight: 600;
  white-space: nowrap;
  border-radius: 8px;
  transition: all 0.2s ease;
  letter-spacing: 0.2px;
  position: relative;
}
.nav-links a:hover { 
  color: var(--text);
  background: rgba(255,255,255,0.04);
}
.nav-links a.active {
  color: #00ff66;
  background: rgba(0,255,102,0.15);
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(0,255,102,0.2);
}

/* 导航激活项底部的绿色横条（与文字同宽） */
.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0; /* 贴在激活高亮背景块的底部 */
  left: 16px; /* 与 padding: 0 16px 保持一致，使宽度与文字内容完全一致 */
  right: 16px;
  height: 2px;
  background-color: #00ff66;
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(0, 255, 102, 0.8), 0 0 2px rgba(0, 255, 102, 1);
  opacity: 0;
  transform: scaleX(0);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease;
}

/* 悬停时，绿条以半透明状态微微展开，增强动态交互感 */
.nav-links a:hover::after {
  opacity: 0.4;
  transform: scaleX(0.7);
}

.nav-links a.active::after {
  opacity: 1;
  transform: scaleX(1);
}

/* 右侧 API 状态 */
#apiStatus { margin-left: auto; flex-shrink: 0; }

/* ── 主内容区 ──────────────────────────────────────────── */
.main         { padding: 28px 32px; width: 100%; }
.main.full-width { padding: 16px 20px; }

/* ── 页面标题 ──────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.page-header-left { display:flex; align-items:center; gap:14px; }
.page-header-icon {
  width: 38px; height: 38px;
  border-radius: var(--r-lg);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.phi-yellow { background:rgba(0,255,102,.1);  border:1px solid rgba(0,255,102,.22); }
.phi-green  { background:rgba(0,255,102,.1);  border:1px solid rgba(0,255,102,.22); }
.phi-blue   { background:rgba(0,255,102,.1);  border:1px solid rgba(0,255,102,.22); }
.phi-red    { background:rgba(255,51,102,.1);   border:1px solid rgba(255,51,102,.22); }
.phi-purple { background:rgba(167,139,250,.1); border:1px solid rgba(167,139,250,.22); }

.page-title-text { font-size:17px; font-weight:700; color:var(--text); letter-spacing:.2px; }
.page-title-sub  { font-size:12px; color:var(--muted); margin-top:2px; }

/* 向后兼容旧 .page-title */
.page-title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 22px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

/* ── 卡片 ─────────────────────────────────────────────── */
.card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 22px 24px;
  margin-bottom: 20px;
  transition: border-color .2s;
}
.card:last-child { margin-bottom: 0; }
.card:hover { border-color: var(--border2); }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.card-title {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .7px;
}

/* 卡片顶部强调条 */
.card-accent-yellow { border-top: 2px solid var(--okx-blue); }
.card-accent-green  { border-top: 2px solid var(--green); }
.card-accent-red    { border-top: 2px solid var(--red); }
.card-accent-blue   { border-top: 2px solid var(--okx-blue); }

/* ── 统计数字卡片 ─────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.stat-card {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px 20px;
  transition: border-color .2s, transform .15s;
}
.stat-card:hover {
  border-color: var(--border2);
  transform: translateY(-1px);
}
.stat-label {
  font-size: 11px;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: .4px;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.stat-value {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.stat-value.green  { color: var(--green); }
.stat-value.red    { color: var(--red); }
.stat-value.yellow { color: var(--okx-blue); }

/* ── 表格 ─────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }

thead tr { border-bottom: 1px solid var(--border); }
thead th {
  padding: 10px 16px;
  text-align: left;
  color: var(--muted);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .5px;
  white-space: nowrap;
  background: transparent;
}
tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid rgba(255,255,255,.04);
  color: var(--text);
  vertical-align: middle;
  transition: background .1s;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: rgba(255,255,255,.028); }

/* ── 徽标 ─────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 4px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .2px;
  white-space: nowrap;
}
.badge-green  { background:rgba(0,255,102,.1);  color:var(--green);  border:1px solid rgba(0,255,102,.2); }
.badge-red    { background:rgba(255,51,102,.1);   color:var(--red);    border:1px solid rgba(255,51,102,.2); }
.badge-yellow { background:rgba(0,255,102,.1);  color:var(--blue);   border:1px solid rgba(0,255,102,.2); }
.badge-blue   { background:rgba(0,255,102,.1);  color:var(--blue);   border:1px solid rgba(0,255,102,.2); }
.badge-gray   { background:rgba(139,145,150,.08);color:var(--muted);  border:1px solid rgba(139,145,150,.15); }
.badge-orange { background:rgba(255,165,0,.1);  color:var(--orange); border:1px solid rgba(255,165,0,.2); }

/* 方向 / 盈亏色 */
.long  { color:var(--green); font-weight:700; }
.short { color:var(--red);   font-weight:700; }
.pos   { color:var(--green); }
.neg   { color:var(--red); }

/* ── 工具栏 ───────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 12px;
  flex-wrap: wrap;
}
.toolbar-left  { display:flex; align-items:center; gap:12px; flex-wrap:wrap; }
.toolbar-right { display:flex; align-items:center; gap:8px;  flex-wrap:wrap; }

.total-badge {
  background: rgba(0,255,102,.08);
  color: var(--okx-blue);
  border: 1px solid rgba(0,255,102,.2);
  border-radius: 20px;
  padding: 2px 12px;
  font-size: 12px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.tb-select {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 7px 12px;
  border-radius: var(--r);
  font-size: 13px;
  outline: none;
  cursor: pointer;
  transition: border-color .2s;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%238B9196'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
}
.tb-select:focus { border-color: var(--okx-blue); }

/* ── 分页 ─────────────────────────────────────────────── */
.pagination-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 10px;
}
.pg-info { font-size: 12px; color: var(--muted); }
.pg-btns { display:flex; align-items:center; gap:4px; }
.pg-btn {
  min-width: 32px; height: 32px; padding: 0 10px;
  border-radius: var(--r);
  border: 1px solid var(--border);
  background: var(--bg3);
  color: var(--muted);
  font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all .15s;
  display: flex; align-items: center; justify-content: center;
}
.pg-btn:hover:not(:disabled) { color:var(--text); border-color:var(--border2); background:var(--bg4); }
.pg-btn.active { background:var(--okx-blue); color:#fff; border-color:var(--okx-blue); box-shadow:0 0 12px rgba(0,255,102,.3); }
.pg-btn:disabled { opacity:.3; cursor:not-allowed; }
.pg-ellipsis { color:var(--muted); padding:0 4px; font-size:13px; }

/* ── 表单 ─────────────────────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.form-group { display:flex; flex-direction:column; gap:7px; }
.form-group label {
  font-size: 11.5px;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: .3px;
  text-transform: uppercase;
}
.form-group input,
.form-group select {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text);
  padding: 10px 14px;
  font-size: 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  font-family: inherit;
  font-variant-numeric: tabular-nums;
}
.form-group input:focus,
.form-group select:focus {
  border-color: var(--okx-blue);
  box-shadow: 0 0 0 2px rgba(0,255,102,.12);
}
.form-group .hint { font-size: 11px; color: var(--dim); }

/* ── 按钮 ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 22px;
  border-radius: var(--r);
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: opacity .15s, transform .1s, box-shadow .15s;
  letter-spacing: .2px;
  white-space: nowrap;
  user-select: none;
}
.btn:hover:not(:disabled)  { opacity:.88; }
.btn:active:not(:disabled) { transform:scale(.98); }

.btn-primary {
  background: var(--okx-blue);
  color: #fff;
  box-shadow: 0 2px 12px rgba(0,255,102,.3);
}
.btn-primary:hover:not(:disabled) { box-shadow:0 4px 18px rgba(0,255,102,.45); }
.btn-danger  { background:var(--red);   color:#fff; }
.btn-success { background:var(--green); color:#fff; }
.btn-ghost   {
  background: var(--bg3);
  color: var(--text2);
  border: 1px solid var(--border);
}
.btn-ghost:hover:not(:disabled) {
  border-color: var(--border2);
  color: var(--text);
  background: var(--bg4);
}
.btn-sm { padding:6px 14px; font-size:12px; }
.btn-xs { padding:4px 10px; font-size:11px; }

/* ── 点状指示器 ─────────────────────────────────────────── */
.dot {
  width:7px; height:7px;
  border-radius:50%;
  display:inline-block;
  flex-shrink:0;
}
.dot.green  { background:var(--green);    box-shadow:0 0 6px rgba(0,255,102,.6); }
.dot.red    { background:var(--red);      box-shadow:0 0 6px rgba(255,51,102,.6); }
.dot.yellow { background:var(--okx-blue); box-shadow:0 0 6px rgba(0,255,102,.6); }
.dot.gray   { background:var(--muted); }

/* ── 空状态 ─────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--muted);
}
.empty-state svg  { opacity:.3; margin-bottom:16px; }
.empty-state p    { font-size: 14px; color:var(--dim); }

/* ── 分隔线 ─────────────────────────────────────────────── */
.divider { height:1px; background:var(--border); margin:20px 0; }

/* ── Toast ─────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 28px; right: 28px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-left: 3px solid var(--okx-blue);
  border-radius: var(--r);
  padding: 12px 20px;
  color: var(--text);
  font-size: 13px;
  z-index: 9999;
  opacity: 0;
  transform: translateY(8px);
  transition: all .25s ease;
  pointer-events: none;
  box-shadow: var(--shadow);
  max-width: 320px;
}
#toast.show { opacity:1; transform:translateY(0); }

/* ── Chart.js 容器 ─────────────────────────────────────── */
#equityChart { width:100%; height:320px; }

/* ── 滚动条 ─────────────────────────────────────────────── */
::-webkit-scrollbar       { width:5px; height:5px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:var(--bg5); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:var(--dim); }

/* ── 响应式 ─────────────────────────────────────────────── */
@media (max-width: 1280px) {
  .nav-links a { padding:0 10px; font-size:12.5px; }
  .nav-links a::after { left: 10px; right: 10px; }
}
@media (max-width: 1024px) {
  .nav-links a { padding:0 8px; font-size:12px; }
  .nav-links a::after { left: 8px; right: 8px; }
  .brand { margin-right:20px; }
}
@media (max-width: 900px) {
  .navbar  { padding:0 16px; }
  .main    { padding:16px 18px; }
  .stats-grid { grid-template-columns:repeat(2, 1fr); }
  .form-grid  { grid-template-columns:1fr; }
}

/* ═══════════════════════════════════════════════════════════
   页脚 / 版权横条  ·  Site Footer (Minimal)
═══════════════════════════════════════════════════════════ */
.site-footer {
  margin-top: 48px;
  background: rgba(15, 16, 20, 0.6);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.footer-bar {
  max-width: 1440px;
  margin: 0 auto;
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 11.5px;
  color: rgba(255,255,255,.12);
}
.footer-copyright {
  color: rgba(255,255,255,.16);
  font-weight: 400;
  letter-spacing: .2px;
}
.footer-copyright strong {
  color: rgba(255,255,255,.26);
  font-weight: 600;
}
.footer-disclaimer {
  color: rgba(255,255,255,.12);
  letter-spacing: .2px;
}

@media (max-width: 600px) {
  .site-footer { margin-top: 32px; }
  .footer-bar {
    padding: 12px 18px;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}