/* ==========================================================================
   缠中说禅 · 缠论买卖点指标  —  主样式表
   风格：红色为主 / 深色金融科技 / 专业简洁
   ========================================================================== */

:root {
  /* 品牌红 */
  --red-50:  #fff1f2;
  --red-100: #ffdde0;
  --red-300: #ff8a95;
  --red-400: #ff4d5e;
  --red-500: #e01e2b;
  --red-600: #c1121f;
  --red-700: #8f0d17;
  --red-900: #4a060c;

  /* 中性 */
  --bg:        #0a0d11;
  --bg-soft:   #0e1218;
  --surface:   #131922;
  --surface-2: #182029;
  --surface-3: #1e2731;
  --border:    #232d39;
  --border-2:  #2e3a48;
  --text:      #e9eef4;
  --text-2:    #a7b2bf;
  --text-3:    #6d7987;
  --text-4:    #4d5866;

  /* 语义 */
  --up:    #ff4d5e;   /* A股习惯：红涨 */
  --up-bg: rgba(255, 77, 94, .12);
  --down:  #22c07d;   /* 绿跌 */
  --down-bg: rgba(34, 192, 125, .12);
  --warn:  #f5a524;
  --info:  #3b9dff;
  --ok:    #22c07d;

  --radius:   12px;
  --radius-sm: 8px;
  --radius-lg: 18px;
  --shadow: 0 10px 34px rgba(0, 0, 0, .42);
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, .3);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --wrap: 1240px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1100px 620px at 78% -12%, rgba(224, 30, 43, .16), transparent 62%),
    radial-gradient(760px 480px at 4% 4%, rgba(224, 30, 43, .07), transparent 58%),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--red-400); }

h1, h2, h3, h4 { margin: 0; font-weight: 650; letter-spacing: -.2px; line-height: 1.32; }
p { margin: 0 0 14px; }
img { max-width: 100%; }
code, kbd { font-family: var(--mono); }

::selection { background: rgba(224, 30, 43, .35); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-soft); }
::-webkit-scrollbar-thumb { background: #26313d; border-radius: 6px; border: 2px solid var(--bg-soft); }
::-webkit-scrollbar-thumb:hover { background: #33404f; }

/* ------------------------------------------------------------- 布局 */

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.wrap-narrow { max-width: 860px; }
.row { display: flex; gap: 16px; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.row-center { display: flex; align-items: center; gap: 10px; }
.wrap-flex { flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-side { grid-template-columns: minmax(0, 2.1fr) minmax(0, 1fr); }
.mt-0 { margin-top: 0; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mb-0 { margin-bottom: 0; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.ta-c { text-align: center; }
.ta-r { text-align: right; }
.nowrap { white-space: nowrap; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--text-3); }
.small { font-size: 13px; }
.tiny { font-size: 12px; }
.hidden { display: none !important; }
.red { color: var(--red-400); }
.up { color: var(--up); }
.down { color: var(--down); }

/* --------------------------------------------------------- 顶部导航 */

.topbar {
  position: sticky; top: 0; z-index: 60;
  background: rgba(10, 13, 17, .86);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  display: flex; align-items: center; gap: 26px;
  height: 62px;
}
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0;
  background: linear-gradient(140deg, var(--red-500), var(--red-700) 65%, #2b0a0e);
  display: grid; place-items: center;
  box-shadow: 0 4px 16px rgba(224, 30, 43, .38), inset 0 1px 0 rgba(255, 255, 255, .22);
  color: #fff; font-weight: 800; font-size: 15px; letter-spacing: -.5px;
  overflow: hidden;
}
/* 标识内的 SVG 撑满整个方块（W 走势 + 两个分型底点） */
.brand-mark > svg { width: 100%; height: 100%; display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.16; }
.brand-name { font-size: 15px; font-weight: 700; letter-spacing: .2px; }
.brand-sub { font-size: 10.5px; color: var(--text-3); letter-spacing: 1.6px; text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 3px; flex: 1; }
.nav a {
  padding: 7px 13px; border-radius: 8px; font-size: 14px; color: var(--text-2);
  transition: .16s; white-space: nowrap;
}
.nav a:hover { background: var(--surface-2); color: var(--text); }
.nav a.active { color: #fff; background: rgba(224, 30, 43, .17); box-shadow: inset 0 0 0 1px rgba(224, 30, 43, .3); }

.topbar-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }

.nav-toggle {
  display: none; width: 38px; height: 38px; border-radius: 9px;
  background: var(--surface-2); border: 1px solid var(--border);
  color: var(--text); cursor: pointer; font-size: 17px;
}

/* ----------------------------------------------------------- 按钮 */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 17px; border-radius: 9px; border: 1px solid var(--border-2);
  background: var(--surface-2); color: var(--text);
  font-size: 14px; font-weight: 550; font-family: inherit; cursor: pointer;
  transition: .16s; white-space: nowrap; line-height: 1.4;
}
.btn:hover { background: var(--surface-3); border-color: #3a4756; color: var(--text); }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--red-500), var(--red-600));
  border-color: var(--red-600); color: #fff;
  box-shadow: 0 4px 16px rgba(224, 30, 43, .3);
}
.btn-primary:hover { background: linear-gradient(135deg, #ef2532, var(--red-500)); color: #fff; border-color: var(--red-500); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text-2); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-danger { background: rgba(224, 30, 43, .14); border-color: rgba(224, 30, 43, .45); color: var(--red-300); }
.btn-danger:hover { background: rgba(224, 30, 43, .24); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: 7px; }
.btn-xs { padding: 4px 9px; font-size: 12px; border-radius: 6px; }
.btn-lg { padding: 13px 28px; font-size: 15.5px; border-radius: 11px; }
.btn-block { width: 100%; }
.btn[disabled], .btn.disabled { opacity: .5; pointer-events: none; }

/* ----------------------------------------------------------- 卡片 */

.card {
  background: linear-gradient(180deg, var(--surface), var(--bg-soft));
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px; position: relative;
}
.card-flat { background: var(--surface); }
.card-hover { transition: .2s; }
.card-hover:hover { border-color: rgba(224, 30, 43, .42); transform: translateY(-2px); box-shadow: var(--shadow); }
.card-head {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding-bottom: 14px; margin-bottom: 16px; border-bottom: 1px solid var(--border);
}
.card-title { font-size: 16px; font-weight: 650; display: flex; align-items: center; gap: 9px; }
.card-title::before {
  content: ''; width: 3px; height: 15px; border-radius: 2px;
  background: linear-gradient(180deg, var(--red-400), var(--red-700));
}
.card-sub { font-size: 12.5px; color: var(--text-3); font-weight: 400; }

.panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}

/* ------------------------------------------------------------ 徽标 */

.badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 9px; border-radius: 20px; font-size: 12px; font-weight: 600;
  border: 1px solid var(--border-2); background: var(--surface-2); color: var(--text-2);
  line-height: 1.65; white-space: nowrap;
}
.badge-red { background: rgba(224, 30, 43, .16); border-color: rgba(224, 30, 43, .45); color: var(--red-300); }
.badge-buy { background: rgba(255, 77, 94, .14); border-color: rgba(255, 77, 94, .42); color: #ff8b96; }
.badge-sell { background: rgba(34, 192, 125, .13); border-color: rgba(34, 192, 125, .4); color: #5fd8a3; }
.badge-warn { background: rgba(245, 165, 36, .14); border-color: rgba(245, 165, 36, .4); color: #f7bc55; }
.badge-info { background: rgba(59, 157, 255, .14); border-color: rgba(59, 157, 255, .38); color: #79bcff; }
.badge-mute { background: var(--surface-2); color: var(--text-3); border-color: var(--border); }
.badge-lg { padding: 5px 13px; font-size: 13px; }

/* 信号类型色（一买/二买/三买/一卖…） */
.sig-tag {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 42px; padding: 3px 10px; border-radius: 7px;
  font-size: 13px; font-weight: 700; letter-spacing: .5px; border: 1px solid transparent;
}
.sig-1B { background: rgba(255, 77, 94, .17); color: #ff8590; border-color: rgba(255, 77, 94, .45); }
.sig-2B { background: rgba(255, 122, 89, .16); color: #ff9d84; border-color: rgba(255, 122, 89, .42); }
.sig-3B { background: rgba(245, 165, 36, .15); color: #f8c164; border-color: rgba(245, 165, 36, .42); }
.sig-1S { background: rgba(34, 192, 125, .16); color: #5fd8a3; border-color: rgba(34, 192, 125, .42); }
.sig-2S { background: rgba(60, 178, 150, .15); color: #6fd4bb; border-color: rgba(60, 178, 150, .4); }
.sig-3S { background: rgba(59, 157, 255, .15); color: #7cbcfd; border-color: rgba(59, 157, 255, .4); }

/* ------------------------------------------------------------ 表单 */

.field { margin-bottom: 16px; }
.label {
  display: block; font-size: 13px; font-weight: 600; color: var(--text-2);
  margin-bottom: 7px; letter-spacing: .2px;
}
.label .req { color: var(--red-400); margin-left: 3px; }
.input, .select, .textarea {
  width: 100%; padding: 10px 13px; border-radius: 9px;
  background: var(--bg-soft); border: 1px solid var(--border-2);
  color: var(--text); font-size: 14.5px; font-family: inherit; transition: .16s;
}
.input::placeholder, .textarea::placeholder { color: var(--text-4); }
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--red-500);
  box-shadow: 0 0 0 3px rgba(224, 30, 43, .16); background: var(--surface);
}
.textarea { min-height: 110px; resize: vertical; line-height: 1.7; }
.textarea-lg { min-height: 380px; font-family: var(--mono); font-size: 13.5px; }
.select { appearance: none; background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'><path d='M1 1l5 5 5-5' stroke='%236d7987' stroke-width='1.6' fill='none' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat; background-position: right 12px center; background-size: 11px; padding-right: 32px; }
.hint { font-size: 12.5px; color: var(--text-3); margin-top: 6px; }
.check { display: flex; align-items: flex-start; gap: 9px; font-size: 13.5px; color: var(--text-2); cursor: pointer; }
.check input { width: 16px; height: 16px; margin-top: 3px; accent-color: var(--red-500); flex-shrink: 0; cursor: pointer; }
.check-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
.input-inline { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* ------------------------------------------------------------- 表格 */

.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.tbl th {
  text-align: left; padding: 11px 14px; background: var(--surface-2);
  color: var(--text-3); font-weight: 600; font-size: 12.5px; letter-spacing: .4px;
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
table.tbl td { padding: 11px 14px; border-bottom: 1px solid rgba(35, 45, 57, .7); vertical-align: middle; }
table.tbl tbody tr:last-child td { border-bottom: none; }
table.tbl tbody tr:hover { background: rgba(24, 32, 41, .6); }
table.tbl .num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
table.tbl-compact td, table.tbl-compact th { padding: 8px 11px; }

/* ------------------------------------------------------------- 提示 */

.flash {
  display: flex; align-items: flex-start; gap: 11px;
  padding: 13px 17px; border-radius: 10px; margin: 16px 0;
  border: 1px solid var(--border-2); background: var(--surface); font-size: 14px;
}
.flash-success { border-color: rgba(34, 192, 125, .42); background: rgba(34, 192, 125, .09); color: #8ce6bd; }
.flash-error { border-color: rgba(224, 30, 43, .45); background: rgba(224, 30, 43, .1); color: #ff9aa4; }
.flash-info { border-color: rgba(59, 157, 255, .4); background: rgba(59, 157, 255, .09); color: #9ecdfd; }
.flash-warn { border-color: rgba(245, 165, 36, .42); background: rgba(245, 165, 36, .1); color: #f7c877; }
.flash-icon { flex-shrink: 0; font-weight: 700; }

.alert {
  padding: 14px 18px; border-radius: 10px; border: 1px solid var(--border-2);
  background: var(--surface); font-size: 13.5px; color: var(--text-2);
}
.alert-red { border-color: rgba(224, 30, 43, .4); background: rgba(224, 30, 43, .08); }
.alert-warn { border-color: rgba(245, 165, 36, .4); background: rgba(245, 165, 36, .08); color: #f0cf94; }
.alert-title { font-weight: 650; color: var(--text); margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }

/* 免责声明条 */
.disclaimer-bar {
  display: flex; align-items: flex-start; gap: 11px;
  padding: 12px 18px; border-radius: 10px;
  background: linear-gradient(90deg, rgba(224, 30, 43, .11), rgba(224, 30, 43, .03));
  border: 1px solid rgba(224, 30, 43, .3);
  font-size: 13px; color: #f0b6bc; line-height: 1.62;
}
.disclaimer-bar strong { color: var(--red-300); }
.disclaimer-bar .dl-icon { flex-shrink: 0; font-size: 15px; }

/* ------------------------------------------------------------ 首页 */

.hero { position: relative; padding: 62px 0 46px; overflow: hidden; }
.hero::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(35, 45, 57, .34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(35, 45, 57, .34) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(720px 420px at 30% 10%, #000 10%, transparent 78%);
  -webkit-mask-image: radial-gradient(720px 420px at 30% 10%, #000 10%, transparent 78%);
}
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 46px; align-items: center; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 5px 14px 5px 8px; border-radius: 30px; margin-bottom: 20px;
  background: rgba(224, 30, 43, .1); border: 1px solid rgba(224, 30, 43, .34);
  font-size: 12.5px; color: var(--red-300); letter-spacing: .4px;
}
.hero-eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--red-400); box-shadow: 0 0 0 4px rgba(255, 77, 94, .18); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .42; } }

.hero h1 { font-size: 43px; line-height: 1.2; margin-bottom: 18px; letter-spacing: -1px; }
.hero h1 .hl {
  background: linear-gradient(120deg, var(--red-400), var(--red-600) 70%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-lead { font-size: 16px; color: var(--text-2); max-width: 560px; margin-bottom: 26px; line-height: 1.85; }
.hero-cta { display: flex; gap: 13px; flex-wrap: wrap; margin-bottom: 26px; }
.hero-meta { display: flex; gap: 26px; flex-wrap: wrap; font-size: 13px; color: var(--text-3); }
.hero-meta b { display: block; font-size: 21px; font-family: var(--mono); color: var(--text); font-weight: 650; }
.hero-meta .sub { display: block; font-size: 11px; color: var(--text-4); margin-top: 2px; white-space: nowrap; }

/* 信号类型九宫格 */
.sig-matrix { display: grid; grid-template-columns: repeat(3, 1fr); gap: 11px; }
.sig-cell {
  padding: 16px 15px; border-radius: 11px; border: 1px solid var(--border);
  background: var(--surface); transition: .2s; position: relative; overflow: hidden;
}
.sig-cell::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; }
.sig-cell.b1::before { background: #ff4d5e; }
.sig-cell.b2::before { background: #ff7a59; }
.sig-cell.b3::before { background: #f5a524; }
.sig-cell.s1::before { background: #22c07d; }
.sig-cell.s2::before { background: #3cb296; }
.sig-cell.s3::before { background: #3b9dff; }
.sig-cell:hover { border-color: var(--border-2); background: var(--surface-2); transform: translateY(-2px); }
.sig-cell .n { font-size: 17px; font-weight: 700; letter-spacing: .5px; }
.sig-cell .c { font-family: var(--mono); font-size: 22px; font-weight: 650; margin: 6px 0 2px; }
.sig-cell .d { font-size: 11.5px; color: var(--text-3); line-height: 1.5; }

/* 行情滚动条 */
.ticker {
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: var(--bg-soft); overflow: hidden; position: relative;
}
.ticker-track { display: flex; gap: 34px; padding: 11px 0; animation: tickerScroll 46s linear infinite; width: max-content; }
.ticker:hover .ticker-track { animation-play-state: paused; }
@keyframes tickerScroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.ticker-item { display: flex; align-items: center; gap: 9px; font-size: 13.5px; white-space: nowrap; }
.ticker-item .nm { color: var(--text-2); }
.ticker-item .cd { color: var(--text-4); font-size: 12px; font-family: var(--mono); }
.ticker-item .pv { font-family: var(--mono); font-weight: 600; }

/* 通用区块标题 */
.section { padding: 54px 0; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 26px; flex-wrap: wrap; }
.section-head h2 { font-size: 25px; letter-spacing: -.4px; }
.section-head p { margin: 7px 0 0; color: var(--text-3); font-size: 14px; max-width: 660px; }
/* 分隔线间距
   原本两侧区块各有 54px 内边距，加上分隔线形成 54+1+54 = 109px 的空档，过于松散。
   改为：紧邻分隔线的一侧内边距归零，间距全部由分隔线自身的 margin 决定，
   这样总间距就是一个可直接调的数字（当前 36+1+36 = 73px），
   且不依赖负外边距与 margin 折叠，行为可预测。 */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  margin: 36px 0;
}
/* 用双类选择器提高优先级：媒体查询里的 .section{padding:38px 0} 与本类同为单类选择器
   且位置更靠后，否则会在移动端覆盖掉这里的归零，反而把间距撑到 149px。 */
.section.section-before-divider { padding-bottom: 0; }
.section.section-after-divider { padding-top: 0; }

/* 信号卡片 */
.sig-card { display: flex; flex-direction: column; gap: 12px; padding: 18px; }
.sig-card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.sig-card-sym { font-size: 15.5px; font-weight: 650; }
.sig-card-code { font-size: 12px; color: var(--text-4); font-family: var(--mono); letter-spacing: .4px; }
.sig-card-price { font-family: var(--mono); font-size: 24px; font-weight: 650; letter-spacing: -.5px; }
.sig-card-reason { font-size: 13px; color: var(--text-3); line-height: 1.68; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.sig-card-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 12px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-4); }

/* 强度条 */
.strength { display: flex; align-items: center; gap: 9px; }
.strength-bar { flex: 1; height: 5px; border-radius: 4px; background: var(--surface-3); overflow: hidden; min-width: 46px; }
.strength-fill { height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--red-600), var(--red-400)); }
.strength-fill.mid { background: linear-gradient(90deg, #a86a12, var(--warn)); }
.strength-fill.low { background: linear-gradient(90deg, #2c6b50, var(--down)); }
.strength-num { font-family: var(--mono); font-size: 12.5px; color: var(--text-2); min-width: 30px; text-align: right; }

/* ------------------------------------------------------------- 图表 */

.chart-shell {
  background: linear-gradient(180deg, #0d1218, #0a0e13);
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
}
.chart-toolbar {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  padding: 12px 16px; border-bottom: 1px solid var(--border); background: rgba(19, 25, 34, .8);
  flex-wrap: wrap;
}
.chart-toolbar .grp { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }
.chip {
  padding: 5px 12px; border-radius: 7px; font-size: 12.5px; cursor: pointer;
  border: 1px solid var(--border-2); background: transparent; color: var(--text-3);
  font-family: inherit; transition: .15s;
}
.chip:hover { color: var(--text); border-color: #3b4857; }
.chip.active { background: rgba(224, 30, 43, .16); border-color: rgba(224, 30, 43, .5); color: var(--red-300); }
/* 容器高度必须由画布撑开，不能写死：
   画布高度是 JS 按宽度比例算出来的（最高 560px），若容器固定高度，
   画布会溢出并把底部的 MACD 窗口压在下方说明文字之下。 */
.chart-canvas-wrap { position: relative; width: 100%; }
.chart-canvas-wrap canvas { display: block; width: 100%; height: 420px; cursor: crosshair; }
.chart-legend {
  display: flex; gap: 18px; flex-wrap: wrap; padding: 10px 16px;
  border-top: 1px solid var(--border); font-size: 12px; color: var(--text-3);
}
.chart-legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend-line { width: 17px; height: 2px; border-radius: 2px; display: inline-block; }
.legend-box { width: 15px; height: 9px; border-radius: 2px; display: inline-block; }

/* 结构图解表格 */
.struct-list { display: flex; flex-direction: column; gap: 9px; }
.struct-item {
  display: flex; align-items: center; gap: 12px; padding: 11px 14px;
  border-radius: 9px; background: var(--surface-2); border: 1px solid var(--border);
  font-size: 13px;
}
.struct-item .k { color: var(--text-3); min-width: 62px; }
.struct-item .v { font-family: var(--mono); color: var(--text); }

/* -------------------------------------------------------- 认证页面 */

.auth-shell { min-height: calc(100vh - 62px); display: flex; align-items: center; justify-content: center; padding: 46px 22px; }
.auth-card { width: 100%; max-width: 452px; }
.auth-card .brand { justify-content: center; margin-bottom: 26px; }
.auth-title { text-align: center; font-size: 23px; margin-bottom: 7px; }
.auth-sub { text-align: center; color: var(--text-3); font-size: 13.5px; margin-bottom: 26px; }
.auth-foot { text-align: center; margin-top: 20px; font-size: 13.5px; color: var(--text-3); }
.auth-foot a { color: var(--red-400); font-weight: 550; }
.auth-split { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: var(--text-4); font-size: 12px; }
.auth-split::before, .auth-split::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* -------------------------------------------------------- 会员中心 */

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(168px, 1fr)); gap: 15px; }
.stat {
  padding: 17px 19px; border-radius: 11px; background: var(--surface);
  border: 1px solid var(--border); position: relative; overflow: hidden;
}
.stat::after {
  content: ''; position: absolute; right: -22px; top: -22px; width: 74px; height: 74px;
  border-radius: 50%; background: radial-gradient(circle, rgba(224, 30, 43, .17), transparent 72%);
}
.stat .lb { font-size: 12.5px; color: var(--text-3); letter-spacing: .3px; }
.stat .vl { font-size: 27px; font-family: var(--mono); font-weight: 650; margin-top: 5px; letter-spacing: -.6px; }
.stat .ex { font-size: 12px; color: var(--text-4); margin-top: 3px; }

.side-nav { display: flex; flex-direction: column; gap: 3px; }
.side-nav a {
  padding: 9px 14px; border-radius: 8px; font-size: 14px; color: var(--text-2);
  display: flex; align-items: center; gap: 10px; transition: .15s;
}
.side-nav a:hover { background: var(--surface-2); color: var(--text); }
.side-nav a.active { background: rgba(224, 30, 43, .14); color: #fff; box-shadow: inset 2px 0 0 var(--red-500); }

/* 会员等级卡 */
.tier-card {
  padding: 24px; border-radius: 14px; border: 1px solid var(--border-2);
  background: linear-gradient(150deg, rgba(224, 30, 43, .13), var(--surface) 55%);
  position: relative; overflow: hidden;
}
.tier-card h3 { font-size: 19px; margin-bottom: 5px; }
.tier-price { font-family: var(--mono); font-size: 33px; font-weight: 650; letter-spacing: -1px; }
.tier-price small { font-size: 13px; color: var(--text-3); font-weight: 400; margin-left: 5px; }
.tier-features { list-style: none; padding: 0; margin: 18px 0 0; display: flex; flex-direction: column; gap: 10px; font-size: 13.5px; color: var(--text-2); }
.tier-features li { display: flex; gap: 9px; align-items: flex-start; }
.tier-features li::before { content: '✓'; color: var(--red-400); font-weight: 700; flex-shrink: 0; }
.tier-pop { border-color: rgba(224, 30, 43, .55); box-shadow: 0 12px 40px rgba(224, 30, 43, .16); }
.tier-flag {
  position: absolute; top: 15px; right: -31px; transform: rotate(38deg);
  background: linear-gradient(135deg, var(--red-500), var(--red-700)); color: #fff;
  font-size: 11px; padding: 4px 34px; font-weight: 600; letter-spacing: .5px;
}

/* --------------------------------------------------------- 文章排版 */

.prose { font-size: 15.5px; line-height: 1.92; color: #cfd8e3; }
.prose h2 { font-size: 21px; margin: 34px 0 14px; color: var(--text); padding-left: 13px; border-left: 3px solid var(--red-500); }
.prose h3 { font-size: 17.5px; margin: 26px 0 11px; color: var(--text); }
.prose h4 { font-size: 15.5px; margin: 20px 0 9px; color: var(--text-2); }
.prose p { margin: 0 0 16px; }
.prose ul, .prose ol { margin: 0 0 16px; padding-left: 24px; }
.prose li { margin-bottom: 8px; }
.prose strong { color: #fff; font-weight: 650; }
.prose a { color: var(--red-400); border-bottom: 1px dashed rgba(224, 30, 43, .5); }
.prose code {
  background: var(--surface-3); padding: 2px 7px; border-radius: 5px;
  font-size: 13px; color: #ffb3ba; border: 1px solid var(--border);
}
.prose pre {
  background: #0a0e13; border: 1px solid var(--border); border-radius: 10px;
  padding: 16px 18px; overflow-x: auto; margin: 0 0 20px;
}
.prose pre code { background: none; border: none; padding: 0; color: #c3d0dd; font-size: 13px; line-height: 1.75; }
.prose blockquote {
  margin: 0 0 20px; padding: 14px 20px; border-left: 3px solid var(--red-500);
  background: rgba(224, 30, 43, .06); border-radius: 0 9px 9px 0; color: #d8c2c5;
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose table { width: 100%; border-collapse: collapse; margin: 0 0 20px; font-size: 13.5px; }
.prose table th { background: var(--surface-2); padding: 10px 13px; text-align: left; border: 1px solid var(--border); color: var(--text-2); }
.prose table td { padding: 9px 13px; border: 1px solid var(--border); }

/* 文章锁定 */
.locked {
  position: relative; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--border); background: var(--surface);
}
.locked-blur { filter: blur(5px); opacity: .32; pointer-events: none; user-select: none; max-height: 230px; overflow: hidden; }
.locked-overlay {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 13px; text-align: center;
  padding: 30px; background: linear-gradient(180deg, rgba(10, 13, 17, .6), rgba(10, 13, 17, .95));
}

/* ------------------------------------------------------------ 页脚 */

.footer { border-top: 1px solid var(--border); background: var(--bg-soft); margin-top: 62px; padding: 46px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(3, 1fr); gap: 34px; margin-bottom: 34px; }
.footer h4 { font-size: 13.5px; color: var(--text); margin-bottom: 14px; letter-spacing: .4px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 9px; }
.footer ul a { font-size: 13.5px; color: var(--text-3); }
.footer ul a:hover { color: var(--red-400); }
.footer-about { font-size: 13px; color: var(--text-3); line-height: 1.8; max-width: 330px; margin-top: 12px; }
.footer-bottom {
  border-top: 1px solid var(--border); padding-top: 22px;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  flex-wrap: wrap; font-size: 12.5px; color: var(--text-4);
}

/* ------------------------------------------------------- 分页/工具条 */

.pager { display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 30px; flex-wrap: wrap; }
.pager a, .pager span {
  min-width: 36px; height: 36px; padding: 0 11px; border-radius: 8px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); background: var(--surface); font-size: 13.5px; color: var(--text-2);
}
.pager a:hover { border-color: var(--red-500); color: var(--text); }
.pager .active { background: var(--red-600); border-color: var(--red-600); color: #fff; font-weight: 600; }
.pager .disabled { opacity: .38; pointer-events: none; }

.toolbar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding: 14px 16px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 20px;
}
.toolbar .input, .toolbar .select { width: auto; min-width: 130px; padding: 7px 11px; font-size: 13.5px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 22px; overflow-x: auto; }
.tabs a {
  padding: 10px 16px; font-size: 14px; color: var(--text-3); border-bottom: 2px solid transparent;
  white-space: nowrap; transition: .15s;
}
.tabs a:hover { color: var(--text); }
.tabs a.active { color: var(--red-400); border-bottom-color: var(--red-500); font-weight: 600; }

.empty { padding: 52px 22px; text-align: center; color: var(--text-3); }
.empty .ic { font-size: 38px; opacity: .3; margin-bottom: 12px; }

/* -------------------------------------------------------------- 后台 */

.admin-shell { display: grid; grid-template-columns: 226px minmax(0, 1fr); min-height: 100vh; }
.admin-side {
  background: var(--bg-soft); border-right: 1px solid var(--border);
  padding: 20px 14px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.admin-side .brand { padding: 4px 8px 20px; }
.admin-side nav { display: flex; flex-direction: column; gap: 2px; }
.admin-side nav .grp-title {
  font-size: 11px; color: var(--text-4); letter-spacing: 1.3px; text-transform: uppercase;
  padding: 17px 10px 7px;
}
.admin-side nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 11px;
  border-radius: 8px; font-size: 13.8px; color: var(--text-2); transition: .15s;
}
.admin-side nav a:hover { background: var(--surface-2); color: var(--text); }
.admin-side nav a.active { background: rgba(224, 30, 43, .16); color: #fff; box-shadow: inset 2px 0 0 var(--red-500); }
.admin-side nav a .ic { width: 17px; text-align: center; opacity: .85; }
.admin-main { padding: 26px 30px 60px; min-width: 0; }
.admin-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 24px; flex-wrap: wrap; }
.admin-head h1 { font-size: 23px; }
.admin-head p { margin: 6px 0 0; color: var(--text-3); font-size: 13.5px; }

.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(178px, 1fr)); gap: 15px; margin-bottom: 26px; }
.kpi { padding: 18px 20px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); }
.kpi .lb { font-size: 12.5px; color: var(--text-3); display: flex; align-items: center; gap: 7px; }
.kpi .vl { font-size: 28px; font-family: var(--mono); font-weight: 650; margin-top: 6px; letter-spacing: -.8px; }
.kpi .dt { font-size: 12px; color: var(--text-4); margin-top: 4px; }

.spark { display: flex; align-items: flex-end; gap: 3px; height: 46px; margin-top: 12px; }
.spark i { flex: 1; background: linear-gradient(180deg, var(--red-500), rgba(224, 30, 43, .26)); border-radius: 2px 2px 0 0; min-height: 3px; }

.act-row { display: flex; gap: 6px; flex-wrap: wrap; }
.inline-form { display: inline-flex; gap: 6px; align-items: center; }
.admin-table-actions { display: flex; gap: 5px; }

/* ------------------------------------------------------------ 响应式 */

@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .grid-side { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .admin-shell { grid-template-columns: 1fr; }
  .admin-side { position: static; height: auto; border-right: none; border-bottom: 1px solid var(--border); }
  .admin-side nav { flex-direction: row; flex-wrap: wrap; }
  .admin-side nav .grp-title { display: none; }
}
@media (max-width: 860px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav {
    display: none; position: absolute; top: 62px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--bg-soft); border-bottom: 1px solid var(--border); padding: 12px 18px 18px;
  }
  .nav.open { display: flex; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .hero h1 { font-size: 32px; }
  .sig-matrix { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .wrap { padding: 0 16px; }
  .admin-main { padding: 18px 16px 48px; }
  .hero { padding: 40px 0 30px; }
  .section { padding: 38px 0; }
  .brand-sub { display: none; }
}