/* 相牛股 · 民国蓝 × 鎏金 主题（A+C 方案原型） */
body.gold{
  --bg:#23589f; --bg2:#2860ad; --card:#1e4f97; --card2:#1b4788;
  --ink:#16386e;
  --gold:#d4af37; --gold-2:#f2dca0; --gold-3:#a98b3f;
  --txt:#f6efdf; --mut:#dce6f7; --soft:#24589f;
  --line:rgba(212,175,55,.16); --line-2:rgba(212,175,55,.28);
  --up:#e06a5e; --down:#4fb08a; --warn:#e0a24e;
  --r:16px; --sh:0 8px 24px rgba(4,10,22,.45);
  --serif:"Songti SC","Noto Serif SC","Source Han Serif SC",STSong,"SimSun",Georgia,serif;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body.gold{
  background:
    radial-gradient(120% 80% at 50% -12%, #5d95e4 0%, rgba(93,149,228,0) 58%),
    var(--bg);
  color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:15px; line-height:1.55;
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:760px;margin:0 auto;padding:14px 14px 96px}

/* ── 原型导航条 ── */
.demobar{
  position:sticky;top:0;z-index:60;display:flex;gap:6px;overflow-x:auto;
  padding:8px 12px;background:var(--ink);color:var(--mut);font-size:12px;align-items:center;
  border-bottom:1px solid var(--line);scrollbar-width:none;
}
.demobar::-webkit-scrollbar{display:none}
.demobar b{color:var(--gold-2);font-weight:600;margin-right:4px;white-space:nowrap;font-family:var(--serif);letter-spacing:1px}
.demobar a{padding:4px 10px;border-radius:999px;background:#152443;white-space:nowrap;border:1px solid rgba(212,175,55,.14);color:#b9c6dd}
.demobar a.on{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#1a1206;border-color:transparent;font-weight:700}

/* ── 顶部栏 ── */
.topbar{display:flex;align-items:center;justify-content:space-between;padding:6px 2px 14px}
.brand{font-family:var(--serif);font-size:20px;font-weight:700;color:var(--gold-2);letter-spacing:2px}
.brand small{display:block;font-family:-apple-system,"PingFang SC",sans-serif;font-size:10px;color:var(--mut);font-weight:400;letter-spacing:.5px;margin-top:2px}
.topbar .acts{display:flex;gap:8px;align-items:center}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:9px 16px;border-radius:11px;border:1px solid var(--line-2);
  background:transparent;color:var(--gold-2);font-size:14px;font-weight:600;cursor:pointer;
  font-family:inherit;transition:.18s;
}
.btn:active{transform:translateY(1px)}
.btn.primary{background:linear-gradient(135deg,#f3e0ab,var(--gold) 55%,#b9972f);color:#1a1206;border:0;box-shadow:0 6px 18px rgba(212,175,55,.22)}
.btn.ghost{border-color:rgba(212,175,55,.3);color:var(--gold-2)}
.btn.block{display:flex;width:100%}

/* ── 卡片 ── */
.card{
  position:relative;background:linear-gradient(180deg,#24589f,#194689);
  border-radius:var(--r);padding:16px;margin-bottom:12px;
  border:1px solid var(--line);box-shadow:var(--sh);
}
.card-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;gap:10px}
.card-h h2{font-family:var(--serif);font-size:16px;margin:0;font-weight:700;letter-spacing:.5px;color:var(--gold-2)}
.card-h .more{font-size:12px;color:var(--gold);opacity:.85;white-space:nowrap}
.muted{color:var(--mut);font-size:12.5px}
.tiny{font-size:12px;color:#b9c7e0}

/* ── Hero ── */
.hero{
  position:relative;overflow:hidden;border-radius:20px;padding:24px 18px 18px;margin-bottom:12px;
  background:
    radial-gradient(90% 120% at 88% -10%, rgba(212,175,55,.22) 0%, rgba(212,175,55,0) 55%),
    linear-gradient(165deg,#427fcb 0%,#25589f 48%,#1a4483 100%);
  color:var(--txt);border:1px solid var(--line-2);
  box-shadow:0 14px 34px rgba(4,10,22,.55);
}
.hero::after{
  content:"";position:absolute;right:-70px;bottom:-90px;width:230px;height:230px;border-radius:50%;
  border:1px solid rgba(212,175,55,.18);background:radial-gradient(circle,rgba(212,175,55,.08),transparent 70%);
}
.hero .kicker{font-size:11px;color:var(--gold);letter-spacing:3px;margin-bottom:10px;font-family:var(--serif)}
.hero h1{font-family:var(--serif);font-size:25px;line-height:1.42;margin:0 0 10px;font-weight:700;letter-spacing:1px}
.hero h1 em{font-style:normal;color:var(--gold-2);text-shadow:0 0 18px rgba(212,175,55,.35)}
.hero .sub{font-size:13px;color:#bccae0;margin-bottom:16px;line-height:1.6}
.hero .pillrow{display:flex;gap:8px;flex-wrap:wrap;position:relative;z-index:1}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;
  background:rgba(212,175,55,.09);border:1px solid rgba(212,175,55,.22);
  color:var(--gold-2);font-size:12px;
}
.dot{width:7px;height:7px;border-radius:50%;display:inline-block;box-shadow:0 0 8px currentColor}

/* ── 统计 ── */
.statgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.stat{background:#24589f;border:1px solid rgba(212,175,55,.1);border-radius:12px;padding:11px 8px;text-align:center}
.stat .v{font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:0;color:var(--gold-2)}
.stat .l{font-size:11.5px;color:var(--mut);margin-top:3px}
.statgrid.g4{grid-template-columns:repeat(2,1fr)}
@media(min-width:560px){.statgrid.g4{grid-template-columns:repeat(4,1fr)}}

/* ── 排行榜列表 ── */
.rank{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid rgba(212,175,55,.1)}
.rank:last-child{border-bottom:0;padding-bottom:2px}
.rank .no{width:22px;flex:0 0 22px;font-family:var(--serif);font-size:13px;font-weight:700;color:#63759a;text-align:center}
.rank .no.top1{color:var(--gold-2)}
.rank .no.top2{color:#c3cbdc}
.rank .no.top3{color:#c99a6b}
.rank .main{flex:1;min-width:0}
.rank .t{display:flex;align-items:baseline;gap:7px;flex-wrap:wrap}
.rank .nm{font-size:15px;font-weight:700;color:var(--txt);letter-spacing:.3px}
.rank .cd{font-size:11.5px;color:#8394b3}
.rank .meta{display:flex;gap:10px;font-size:12px;color:#bcc9e0;margin-top:4px;flex-wrap:wrap}
.rank .score{font-family:var(--serif);font-size:20px;font-weight:700;color:var(--gold-2);text-align:right;min-width:46px}
.rank .score small{display:block;font-family:-apple-system,"PingFang SC",sans-serif;font-size:10px;font-weight:500;color:var(--mut)}
.bar{height:6px;border-radius:6px;background:rgba(255,255,255,.07);overflow:hidden;margin-top:7px;display:flex;gap:1px}
.bar i{display:block;height:100%;border-radius:3px}
.bar i.b1{background:linear-gradient(90deg,#f3e0ab,var(--gold))}
.bar i.b2{background:linear-gradient(90deg,#d8bf78,#b9972f)}
.bar i.b3{background:linear-gradient(90deg,#a9c0e0,#6f8db8)}
.bar i.b4{background:linear-gradient(90deg,#7f9cc4,#4f6f9c)}

/* ── 精选卡 ── */
.pick{border:1px solid rgba(212,175,55,.16);border-radius:14px;padding:14px;margin-bottom:10px;background:linear-gradient(180deg,#24589f,#1a4788);position:relative}
.pick:last-child{margin-bottom:0}
.pick::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;background:linear-gradient(180deg,var(--gold-2),transparent)}
.pick .head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;padding-left:8px}
.pick .name{font-size:16.5px;font-weight:800;letter-spacing:.3px}
.pick .tags{display:flex;gap:6px;margin-top:6px;flex-wrap:wrap}
.tag{font-size:11px;padding:3px 9px;border-radius:8px;background:rgba(212,175,55,.12);color:var(--gold-2);border:1px solid rgba(212,175,55,.2);font-weight:600}
.tag.gray{background:rgba(255,255,255,.05);color:var(--mut);border-color:rgba(255,255,255,.07);font-weight:500}
.pick .sc{font-family:var(--serif);font-size:24px;font-weight:700;color:var(--gold-2);line-height:1}
.pick .sc small{font-family:-apple-system,"PingFang SC",sans-serif;font-size:10px;color:var(--mut);font-weight:500}
.levels{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px;padding-left:8px}
.lv{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);border-radius:10px;padding:8px;text-align:center}
.lv .l{font-size:11px;color:#c2cee5;margin-bottom:3px}
.lv .v{font-family:var(--serif);font-size:14px;font-weight:700;letter-spacing:.3px}
.lv.buy .v{color:var(--gold-2)}
.lv.stop .v{color:var(--down)}
.lv.take .v{color:var(--up)}

/* ── 锁定 ── */
.locked{position:relative;border-radius:14px;overflow:hidden}
.locked .blur{filter:blur(5px);opacity:.5;pointer-events:none;user-select:none}
.locked .mask{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:9px;
  background:linear-gradient(180deg,rgba(15,29,54,.3),rgba(15,29,54,.94));text-align:center;padding:10px;
}
.locked .mask .lk{font-size:22px;filter:sepia(1) saturate(3) hue-rotate(-8deg)}
.locked .mask .tx{font-size:13px;color:var(--gold-2);font-weight:600}

/* ── 横向滑动 ── */
.hscroll{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px;margin:0 -16px;padding-left:16px;padding-right:16px;scrollbar-width:none}
.hscroll::-webkit-scrollbar{display:none}
.hcard{flex:0 0 148px;background:linear-gradient(180deg,#24589f,#1a4788);border-radius:13px;padding:12px;border:1px solid rgba(212,175,55,.16)}
.hcard .nm{font-size:14px;font-weight:700}
.hcard .cd{font-size:11px;color:#8394b3}
.hcard .v{font-family:var(--serif);font-size:20px;font-weight:700;margin-top:8px;color:var(--gold-2)}

/* ── tabs ── */
.tabs{display:flex;gap:6px;background:var(--ink);padding:4px;border-radius:12px;margin-bottom:12px;border:1px solid rgba(212,175,55,.12)}
.tabs button{
  flex:1;padding:8px 6px;border:0;border-radius:9px;background:transparent;color:var(--mut);
  font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;transition:.18s;
}
.tabs button.on{background:linear-gradient(135deg,rgba(212,175,55,.22),rgba(212,175,55,.1));color:var(--gold-2);box-shadow:inset 0 0 0 1px rgba(212,175,55,.3)}
.chips{display:flex;gap:7px;overflow-x:auto;padding-bottom:6px;margin-bottom:6px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{white-space:nowrap;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid rgba(212,175,55,.16);font-size:12.5px;color:#c3cee2}
.chip.on{background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#1a1206;border-color:transparent;font-weight:700}

/* ── 拆解 ── */
.brk{display:grid;gap:7px;margin-top:10px;padding-left:8px}
.brk .row{display:grid;grid-template-columns:52px 1fr 30px;align-items:center;gap:10px;font-size:12px;color:#cfd9ea}
.brk .tr{height:5px;border-radius:5px;background:rgba(255,255,255,.07);overflow:hidden}
.brk .tr i{display:block;height:100%;background:linear-gradient(90deg,#f3e0ab,var(--gold));border-radius:5px}

/* ── 曲线 ── */
.curvebox{position:relative;height:150px;margin-top:6px}
canvas{display:block;width:100%;height:100%}

/* ── 步骤 ── */
.steps{display:grid;gap:10px}
.step{display:flex;gap:12px;align-items:flex-start;background:rgba(255,255,255,.06);border:1px solid rgba(212,175,55,.1);border-radius:13px;padding:13px}
.step .n{
  flex:0 0 28px;height:28px;border-radius:9px;
  background:linear-gradient(135deg,var(--gold-2),var(--gold));color:#1a1206;
  font-family:var(--serif);font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center;
}
.step .tx b{display:block;font-size:14px;margin-bottom:2px;color:var(--gold-2)}
.step .tx span{font-size:12.5px;color:var(--mut)}

/* ── 折叠日卡 ── */
details.day{background:rgba(255,255,255,.035);border:1px solid rgba(212,175,55,.1);border-radius:12px;margin-bottom:8px;overflow:hidden}
details.day summary{list-style:none;padding:12px 13px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;font-size:13.5px}
details.day summary::-webkit-details-marker{display:none}
details.day summary .arw{color:var(--gold-3);transition:.2s;font-size:11px}
details.day[open] summary .arw{transform:rotate(90deg)}
details.day .body{padding:0 13px 12px;border-top:1px dashed rgba(212,175,55,.14)}
.trade{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.05);font-size:12.5px;gap:10px}
.trade:last-child{border-bottom:0}
.trade .n{font-weight:700;font-size:13px}
.trade .p{color:var(--mut);font-size:11.5px;margin-top:2px}
.trade .r{font-family:var(--serif);font-weight:700;font-size:14px}

/* ── 底部 Tab ── */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;
  background:rgba(11,22,40,.94);backdrop-filter:blur(12px);
  border-top:1px solid rgba(212,175,55,.18);padding:7px 4px calc(7px + env(safe-area-inset-bottom));
}
.tabbar a{flex:1;text-align:center;font-size:10.5px;color:#7e8faf;padding:3px 0}
.tabbar a .ic{display:block;font-size:19px;line-height:1.35;filter:grayscale(.6) brightness(.85);opacity:.8}
.tabbar a.on{color:var(--gold-2);font-weight:700}
.tabbar a.on .ic{filter:none;opacity:1}
@media(min-width:760px){.tabbar{display:none}.wrap{padding-bottom:32px}}

.hr{height:1px;background:linear-gradient(90deg,transparent,rgba(212,175,55,.28),transparent);margin:16px 0}
.center{text-align:center}
.up{color:var(--up)}
.down{color:var(--down)}
.note{font-size:11.5px;color:#aab9d4;line-height:1.65}
.seal{
  display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:6px;
  border:1px solid rgba(212,175,55,.5);color:var(--gold-2);font-family:var(--serif);font-size:12px;
}
.gold-line{height:1px;background:linear-gradient(90deg,transparent,rgba(212,175,55,.5),transparent);margin:14px 0}


/* ══════ 日间模式 ══════ */
body.gold.light{
  --bg:#f3efe4; --bg2:#ece6d6; --card:#fffdf7; --card2:#faf5e8;
  --ink:#12213c;
  --gold:#9a7b1f; --gold-2:#7a5f14; --gold-3:#b89b4a;
  --txt:#1b2740; --mut:#6a7688; --soft:#f6f1e3;
  --line:rgba(154,123,31,.22); --line-2:rgba(154,123,31,.34);
  --sh:0 6px 20px rgba(27,39,64,.08);
  background: radial-gradient(120% 70% at 50% -10%, #fdfaf1 0%, rgba(253,250,241,0) 60%), var(--bg);
  color:var(--txt);
}
body.gold.light .card{background:linear-gradient(180deg,#fffdf7,#fbf7ec)}
body.gold.light .hero{background:radial-gradient(90% 120% at 88% -10%, rgba(154,123,31,.14) 0%, rgba(154,123,31,0) 55%),linear-gradient(160deg,#1d3a63,#12294a 55%,#0d1c33 100%)}
body.gold.light .pick{background:linear-gradient(180deg,#fffdf7,#faf5e8)}
body.gold.light .hcard{background:linear-gradient(180deg,#fffdf7,#faf5e8)}
body.gold.light .step,body.gold.light details.day{background:#fbf7ec}
body.gold.light .stat{background:#f6f1e3}
body.gold.light .lv{background:#f8f3e6;border-color:rgba(154,123,31,.14)}
body.gold.light .tabs{background:#eae3d1}
body.gold.light .btn{color:#7a5f14;border-color:rgba(154,123,31,.3)}
body.gold.light .tabbar{background:rgba(253,250,241,.96);border-top-color:rgba(154,123,31,.24)}
body.gold.light .tabbar a.on{color:#7a5f14}
body.gold.light .note{color:#7d8698}
body.gold.light .chip{background:#fff;border-color:rgba(154,123,31,.22);color:#4a5568}

/* ── CTA 区块（日夜自适应） ── */
.cta-hero{background:radial-gradient(120% 140% at 90% -20%,rgba(212,175,55,.2),rgba(212,175,55,0) 60%),linear-gradient(160deg,#1c3963,#0e1c33);border:1px solid var(--line-2)}
.cta-hero .cta-t{font-family:var(--serif);font-size:19px;font-weight:700;margin-bottom:6px;color:var(--gold-2);letter-spacing:1px}
.cta-hero .cta-s{font-size:13px;color:#bccae0;margin-bottom:16px}
body.gold.light .cta-hero{background:radial-gradient(120% 140% at 90% -20%,rgba(154,123,31,.12),rgba(154,123,31,0) 60%),linear-gradient(160deg,#fffdf6,#f6eeda)}
body.gold.light .cta-hero .cta-t{color:#6d5510}
body.gold.light .cta-hero .cta-s{color:#6a7688}
body.gold.light .seal{border-color:rgba(154,123,31,.55);color:#7a5f14}
body.gold.light .chips .chip{background:#fffdf7;color:#3f4a5f;border-color:rgba(154,123,31,.26);box-shadow:0 1px 2px rgba(27,39,64,.05)}
body.gold.light .step{border-color:rgba(154,123,31,.16)}
body.gold.light .card-h .more{color:#8a6c17}