/* 彩票惯性预测 · 共用样式（纯静态，无外部字体与 CDN） */
:root {
  color-scheme: light;
  --bg: #f4f5f8;
  --surface: #ffffff;
  --surface-2: #f7f8fb;
  --line: #e6e8ee;
  --line-strong: #d4d8e2;
  --text: #14161c;
  --text-2: #4d5260;
  --muted: #858b99;
  --accent: #2a78d6;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 4px 16px rgba(16, 24, 40, .06);
  --radius: 16px;
  /* 三种预测（数据图的分类色：顺序固定，不随筛选变化） */
  --m1: #2a78d6;
  --m2: #eb6834;
  --m3: #1baf7a;
  --base: #8a8f9c;
  /* 号码球 */
  --red-1: #ff5a5f; --red-2: #d61f2c;
  --blue-1: #4d9bff; --blue-2: #1957c9;
  --gold-1: #ffc443; --gold-2: #e8890c;
  --ok: #138a4b; --ok-bg: #e6f6ed; --on-ok: #ffffff;
  --warn-bg: #fff4e0; --warn: #9a5b00;
  --hero-ssq: linear-gradient(135deg, #e2343f 0%, #b3245a 55%, #6d2a8f 100%);
  --hero-dlt: linear-gradient(135deg, #0f9bb0 0%, #1d6fd0 60%, #3346b8 100%);
  --hero-fc3d: linear-gradient(135deg, #f08a12 0%, #e5532b 60%, #c42d3a 100%);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #111318; --surface: #1a1d24; --surface-2: #20242c; --line: #2a2f39; --line-strong: #363c48;
    --text: #eef0f4; --text-2: #b9bfcc; --muted: #8a91a0; --accent: #3987e5;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 18px rgba(0, 0, 0, .25);
    --m1: #3987e5; --m2: #d95926; --m3: #199e70; --base: #9aa0ad;
    --ok: #4cc584; --on-ok: #0b2416; --ok-bg: #173526; --warn-bg: #3a2a10; --warn: #f0b860;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111318; --surface: #1a1d24; --surface-2: #20242c; --line: #2a2f39; --line-strong: #363c48;
  --text: #eef0f4; --text-2: #b9bfcc; --muted: #8a91a0; --accent: #3987e5;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 4px 18px rgba(0, 0, 0, .25);
  --m1: #3987e5; --m2: #d95926; --m3: #199e70; --base: #9aa0ad;
  --ok: #4cc584; --on-ok: #0b2416; --ok-bg: #173526; --warn-bg: #3a2a10; --warn: #f0b860;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-variant-numeric: tabular-nums;
}
a { color: inherit; }
button { font: inherit; color: inherit; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
@media (max-width: 640px) { .wrap { padding: 0 16px; } }

/* ---------- 顶栏 ---------- */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: saturate(1.6) blur(14px); -webkit-backdrop-filter: saturate(1.6) blur(14px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 20px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: 17px; letter-spacing: .02em; white-space: nowrap; }
.brand-mark { width: 30px; height: 30px; flex: none; }
.nav { display: flex; gap: 4px; margin-left: auto; }
.nav a { text-decoration: none; padding: 7px 14px; border-radius: 999px; color: var(--text-2); font-weight: 600; font-size: 14px; white-space: nowrap; }
.nav a:hover { background: var(--surface-2); color: var(--text); }
.nav a[aria-current="page"] { background: var(--text); color: var(--surface); }

/* ---------- 彩种切换 ---------- */
.switch { display: flex; gap: 10px; margin: 22px 0 18px; }
.switch button { flex: 1; max-width: 220px; display: flex; align-items: center; gap: 10px; padding: 12px 16px; cursor: pointer;
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px; text-align: left; box-shadow: var(--shadow);
  transition: transform .15s, border-color .15s; }
.switch button:hover { transform: translateY(-1px); border-color: var(--line-strong); }
.switch button[aria-selected="true"] { border-color: transparent; color: #fff; }
.switch button[data-g="ssq"][aria-selected="true"] { background: var(--hero-ssq); }
.switch button[data-g="dlt"][aria-selected="true"] { background: var(--hero-dlt); }
.switch button[data-g="fc3d"][aria-selected="true"] { background: var(--hero-fc3d); }
.switch .sw-ico { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-weight: 800; font-size: 14px; flex: none; color: #fff; }
.switch [data-g="ssq"] .sw-ico { background: var(--hero-ssq); }
.switch [data-g="dlt"] .sw-ico { background: var(--hero-dlt); }
.switch [data-g="fc3d"] .sw-ico { background: var(--hero-fc3d); }
.switch [aria-selected="true"] .sw-ico { background: rgba(255, 255, 255, .22); }
.switch b { display: block; font-size: 15px; }
.switch small { display: block; font-size: 12px; opacity: .75; white-space: nowrap; }
@media (max-width: 640px) {
  .switch { gap: 8px; margin: 16px 0 14px; }
  .switch button { padding: 10px; gap: 8px; flex-direction: column; text-align: center; }
  .switch .sw-ico { display: none; }
  .switch small { font-size: 11px; }
}

/* ---------- 首屏 ---------- */
.hero { position: relative; overflow: hidden; border-radius: 22px; color: #fff; padding: 28px 30px; display: grid;
  grid-template-columns: 1.25fr 1fr; gap: 26px; box-shadow: 0 10px 30px rgba(20, 20, 60, .18); }
.hero[data-g="ssq"] { background: var(--hero-ssq); }
.hero[data-g="dlt"] { background: var(--hero-dlt); }
.hero[data-g="fc3d"] { background: var(--hero-fc3d); }
.hero::after { content: ""; position: absolute; right: -80px; top: -120px; width: 360px; height: 360px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, .18), rgba(255, 255, 255, 0) 70%); pointer-events: none; }
.hero h1 { margin: 0; font-size: 15px; font-weight: 600; opacity: .9; letter-spacing: .04em; }
.hero .issue { font-size: 40px; font-weight: 800; line-height: 1.15; margin: 4px 0 6px; letter-spacing: .01em; }
.hero .issue small { font-size: 18px; font-weight: 600; opacity: .85; margin-left: 4px; }
.hero .when { font-size: 15px; opacity: .92; }
.count { display: flex; gap: 10px; margin-top: 18px; }
.count div { min-width: 64px; padding: 8px 10px 6px; border-radius: 12px; text-align: center; background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .22); }
.count b { display: block; font-size: 26px; line-height: 1.1; font-weight: 800; }
.count span { font-size: 12px; opacity: .85; }
.count-note { margin-top: 18px; padding: 10px 14px; border-radius: 12px; background: rgba(255, 255, 255, .16); display: inline-block; font-weight: 600; }
.hero-side { position: relative; z-index: 1; background: rgba(255, 255, 255, .13); border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 16px; padding: 16px 18px; align-self: center; }
.hero-side h2 { margin: 0 0 10px; font-size: 13px; font-weight: 600; opacity: .9; display: flex; justify-content: space-between; gap: 8px; }
.hero-side .balls { gap: 8px; }
.hero-side .mini { margin-top: 12px; display: grid; gap: 6px; font-size: 13px; }
.hero-side .mini div { display: flex; align-items: center; gap: 8px; justify-content: space-between; padding: 6px 10px; border-radius: 10px; background: rgba(0, 0, 0, .12); }
.hero-side .mini b { font-weight: 700; }
.hero-side .mini .dot { box-shadow: 0 0 0 2px rgba(255, 255, 255, .8); }
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding: 22px 18px; gap: 18px; border-radius: 18px; }
  .hero .issue { font-size: 32px; }
  .count div { min-width: 0; flex: 1; }
  .count b { font-size: 22px; }
  .hero-side { padding: 14px; }
  .hero-side .balls { gap: 5px; }
  .hero-side .ball.lg { --s: 30px; }
  .hero-side .mini div { flex-wrap: wrap; gap: 2px 8px; }
}

/* ---------- 号码球 ---------- */
.balls { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.ball { --s: 34px; width: var(--s); height: var(--s); border-radius: 50%; display: inline-grid; place-items: center; flex: none;
  font-weight: 700; font-size: calc(var(--s) * .42); color: #fff; letter-spacing: 0; position: relative;
  box-shadow: inset 0 -3px 6px rgba(0, 0, 0, .18), inset 0 2px 4px rgba(255, 255, 255, .35), 0 1px 2px rgba(0, 0, 0, .15); }
.ball.r { background: radial-gradient(circle at 32% 28%, var(--red-1), var(--red-2) 72%); }
.ball.b { background: radial-gradient(circle at 32% 28%, var(--blue-1), var(--blue-2) 72%); }
.ball.d { background: radial-gradient(circle at 32% 28%, var(--gold-1), var(--gold-2) 72%); }
.ball.sm { --s: 26px; }
.ball.xs { --s: 22px; font-size: 10px; }
.ball.lg { --s: 40px; }
.ball.miss { filter: grayscale(1) opacity(.38); }
.ball.hit::after { content: ""; position: absolute; inset: -4px; border-radius: 50%; border: 2px solid var(--ok); }
.plus { color: var(--muted); font-weight: 700; margin: 0 2px; }
.hero .plus { color: rgba(255, 255, 255, .7); }
.pos-label { font-size: 12px; color: var(--muted); min-width: 30px; }

/* ---------- 卡片 ---------- */
.section-title { display: flex; align-items: baseline; justify-content: space-between; gap: 4px 12px; margin: 30px 0 14px; flex-wrap: wrap; }
.section-title h2 { margin: 0; font-size: 20px; white-space: nowrap; }
.section-title p { margin: 0; color: var(--muted); font-size: 13px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.preds { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 1020px) { .preds { grid-template-columns: 1fr; } }
.pred { display: flex; flex-direction: column; overflow: hidden; }
.pred-head { display: flex; align-items: center; gap: 10px; padding: 16px 18px 12px; border-bottom: 1px solid var(--line); }
.pred-head h3 { margin: 0; font-size: 17px; }
.pred-head .tag { margin-left: auto; }
.dot { width: 10px; height: 10px; border-radius: 50%; flex: none; display: inline-block; }
.dot.m1, .key.m1 { background: var(--m1); } .dot.m2, .key.m2 { background: var(--m2); } .dot.m3, .key.m3 { background: var(--m3); }
.pred-head .dot { width: 12px; height: 12px; }
.pred-body { padding: 14px 18px 16px; display: grid; gap: 14px; }
.blk h4 { margin: 0 0 8px; font-size: 13px; color: var(--text-2); font-weight: 600; display: flex; align-items: center; gap: 8px; }
.blk h4 .sub { color: var(--muted); font-weight: 500; }
.blk h4 .copy { margin-left: auto; }
.single { padding: 12px; border-radius: 12px; background: var(--surface-2); }
.pred { container-type: inline-size; }
@container (max-width: 360px) {
  .single .ball { --s: 30px; }
  .single.balls { gap: 5px; }
}
.pred-foot { margin-top: auto; padding: 12px 18px 14px; border-top: 1px solid var(--line); background: var(--surface-2); font-size: 13px; color: var(--text-2); display: grid; gap: 8px; }
.pred-foot .meta { color: var(--muted); font-size: 12px; }
.recent { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; }
.recent .cell { width: 22px; height: 22px; border-radius: 6px; display: grid; place-items: center; font-size: 11px; font-weight: 700; color: var(--text-2); background: var(--surface); border: 1px solid var(--line); }
.recent .cell.l1 { background: color-mix(in srgb, var(--mc) 22%, var(--surface)); border-color: transparent; }
.recent .cell.l2 { background: color-mix(in srgb, var(--mc) 48%, var(--surface)); border-color: transparent; color: var(--text); }
.recent .cell.l3 { background: var(--mc); border-color: transparent; color: #fff; }
.recent .cell.win { box-shadow: 0 0 0 2px var(--ok); }
details.formulas summary { cursor: pointer; color: var(--accent); font-size: 13px; list-style: none; }
details.formulas summary::-webkit-details-marker { display: none; }
details.formulas summary::after { content: " ▾"; }
details.formulas[open] summary::after { content: " ▴"; }
details.formulas ol { margin: 8px 0 0; padding-left: 18px; display: grid; gap: 6px; font-size: 12.5px; color: var(--text-2); }
details.formulas li small { color: var(--muted); display: block; }
.empty { padding: 34px 18px; text-align: center; color: var(--muted); }
.empty b { display: block; color: var(--text-2); font-size: 15px; margin-bottom: 4px; }

.tag { display: inline-flex; align-items: center; gap: 4px; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--surface-2); color: var(--text-2); border: 1px solid var(--line); white-space: nowrap; }
.tag.live { background: var(--ok-bg); color: var(--ok); border-color: transparent; }
.tag.back { background: var(--warn-bg); color: var(--warn); border-color: transparent; }
.tag.win { background: var(--ok); color: var(--on-ok); border-color: transparent; }
.copy { cursor: pointer; border: 1px solid var(--line); background: var(--surface); border-radius: 8px; padding: 2px 9px; font-size: 12px; color: var(--text-2); }
.copy:hover { border-color: var(--line-strong); color: var(--text); }
.copy.done { color: var(--ok); border-color: var(--ok); }

/* ---------- 历史回溯 ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; margin: 4px 0 18px; }
.seg { display: inline-flex; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 3px; }
.seg button { border: 0; background: none; padding: 6px 12px; border-radius: 9px; cursor: pointer; font-size: 13px; color: var(--text-2); font-weight: 600; white-space: nowrap; }
.seg button[aria-pressed="true"] { background: var(--text); color: var(--surface); }
.filters .lbl { font-size: 13px; color: var(--muted); margin-right: 6px; }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 1020px) { .stats { grid-template-columns: 1fr; } }
.stat { padding: 16px 18px; }
.stat-head { display: flex; align-items: center; gap: 6px 10px; margin-bottom: 12px; flex-wrap: wrap; }
.stat-head h3 { margin: 0; font-size: 16px; white-space: nowrap; }
.stat-head .tag { margin-left: auto; }
.kv { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.kv div { padding: 10px 12px; border-radius: 12px; background: var(--surface-2); }
.kv span { display: block; font-size: 12px; color: var(--muted); }
.kv b { font-size: 20px; line-height: 1.3; }
.kv small { display: block; font-size: 12px; color: var(--muted); }
.kv .up { color: var(--ok); }
.chart-card { padding: 18px 18px 12px; margin-top: 16px; }
.chart-card h3 { margin: 0; font-size: 16px; }
.chart-card .desc { margin: 2px 0 10px; color: var(--muted); font-size: 13px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13px; color: var(--text-2); margin: 6px 0 4px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend .key { width: 16px; height: 3px; border-radius: 2px; display: inline-block; }
.legend .key.base { background: var(--base); height: 1px; }
.legend .key.sq { width: 10px; height: 10px; border-radius: 3px; }
.legend b { color: var(--text); }
.chart { position: relative; width: 100%; }
.chart svg { display: block; width: 100%; overflow: visible; }
.chart .grid line { stroke: var(--line); stroke-width: 1; }
.chart .axis text { fill: var(--muted); font-size: 11px; }
.chart .baseline { stroke: var(--base); stroke-width: 1; }
.chart .baseline-label { fill: var(--muted); font-size: 11px; }
.chart .series { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .cross { stroke: var(--line-strong); stroke-width: 1; }
.chart .hdot { stroke: var(--surface); stroke-width: 2; }
.tip { position: absolute; pointer-events: none; z-index: 5; min-width: 150px; background: var(--surface); color: var(--text);
  border: 1px solid var(--line-strong); border-radius: 10px; padding: 8px 10px; font-size: 12.5px; box-shadow: var(--shadow); display: none; }
.tip .t { font-weight: 700; margin-bottom: 4px; }
.tip .r { display: flex; align-items: center; gap: 6px; justify-content: space-between; }
.tip .r span { display: inline-flex; align-items: center; gap: 6px; color: var(--text-2); }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 860px) { .two { grid-template-columns: 1fr; } }

/* ---------- 逐期命中（每期一张卡片） ---------- */
.recs { display: grid; gap: 14px; }
.rc { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.rc::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; }
.rc[data-g="ssq"]::before { background: var(--hero-ssq); }
.rc[data-g="dlt"]::before { background: var(--hero-dlt); }
.rc[data-g="fc3d"]::before { background: var(--hero-fc3d); }
.rc-top { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px 20px; padding: 14px 20px 14px 22px; background: var(--surface-2); border-bottom: 1px solid var(--line); }
.rc-issue { display: flex; align-items: baseline; gap: 10px; }
.rc-issue b { font-size: 18px; }
.rc-issue span { font-size: 13px; color: var(--muted); }
.rc-draw { display: flex; align-items: center; gap: 12px; }
.rc-lab { font-size: 12px; color: var(--muted); white-space: nowrap; }
.ball.md { --s: 32px; }
.rc-rows { padding: 4px 20px 6px 22px; }
.rc-row { display: grid; grid-template-columns: 136px 1fr auto; align-items: center; gap: 12px; padding: 10px 0; }
.rc-row + .rc-row { border-top: 1px dashed var(--line); }
.rc-m { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--text-2); white-space: nowrap; }
.chips { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.chip { width: 30px; height: 30px; border-radius: 50%; display: inline-grid; place-items: center; font-size: 13px; font-weight: 600;
  color: var(--muted); border: 1.5px solid var(--line-strong); background: transparent; }
.chip.hr, .chip.hb, .chip.hd { color: #fff; border-color: transparent; font-weight: 700; }
.chip.hr { background: radial-gradient(circle at 32% 28%, var(--red-1), var(--red-2) 72%); }
.chip.hb { background: radial-gradient(circle at 32% 28%, var(--blue-1), var(--blue-2) 72%); }
.chip.hd { background: radial-gradient(circle at 32% 28%, var(--gold-1), var(--gold-2) 72%); }
.chip-plus { color: var(--muted); font-weight: 700; margin: 0 1px; }
.rc-res { display: flex; align-items: center; gap: 8px; justify-content: flex-end; white-space: nowrap; }
.hp { font-size: 12.5px; font-weight: 600; padding: 3px 10px; border-radius: 999px; background: var(--surface-2); color: var(--muted); border: 1px solid var(--line); }
.hp.on { color: var(--text); border-color: var(--line-strong); }
.zero { color: var(--muted); font-size: 13px; }
@media (max-width: 760px) {
  .rc-top { padding: 12px 14px 12px 16px; }
  .rc-draw { width: 100%; }
  .ball.md { --s: 28px; }
  .rc-draw .balls { gap: 4px; }
  .rc-rows { padding: 2px 14px 4px 16px; }
  .rc-row { grid-template-columns: 1fr auto; grid-template-areas: "m res" "chips chips"; gap: 8px; }
  .rc-m { grid-area: m; } .rc-res { grid-area: res; } .chips { grid-area: chips; gap: 5px; }
  .chip { width: 28px; height: 28px; font-size: 12.5px; }
}
.more { display: block; margin: 14px auto 4px; padding: 9px 22px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); cursor: pointer; font-weight: 600; color: var(--text-2); }
.note { margin-top: 14px; font-size: 12.5px; color: var(--muted); }

footer { margin: 40px 0 0; padding: 22px 0 34px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12.5px; text-align: center; }
footer p { margin: 2px 0; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }