:root{
  --blue:#285FFF; --indigo:#4559DC; --ink:#0B1733; --text:#344054; --muted:#6F6F6F;
  --faint:#A0A0A0; --red:#D30B0B; --amber:#F5AD42; --grid:#EAECF0; --card:#FFFFFF;
  --bg:#F7F8FA; --green:#1FA971;
}
*{box-sizing:border-box}
html:not([data-lang="zh"]) .l-zh{display:none}
html[data-lang="zh"] .l-en{display:none}
html[data-lang="zh"] body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",Inter,sans-serif}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,sans-serif;font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px 60px}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 0 14px;border-bottom:1px solid var(--grid);margin-bottom:24px;position:sticky;top:0;background:var(--bg);z-index:20}
.nav-links{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
a.nav-link{padding:7px 11px;border-radius:9px;font-size:13.5px;font-weight:500;color:var(--muted);text-decoration:none;white-space:nowrap;transition:color .18s,background .18s}
a.nav-link:hover,a.nav-link.active{color:var(--ink);background:#eef1f6}
.nav-dd{position:relative;display:inline-flex}
.nav-dd>a.nav-link .caret{display:inline-block;margin-left:3px;font-size:9px;opacity:.6;transition:transform .2s}
.nav-dd:hover>a.nav-link .caret,.nav-dd:focus-within>a.nav-link .caret{transform:rotate(180deg)}
.nav-dd::after{content:"";position:absolute;left:0;right:0;top:100%;height:9px}
.nav-dd-menu{position:absolute;top:calc(100% + 7px);left:0;min-width:218px;background:var(--card);border:1px solid var(--grid);border-radius:13px;box-shadow:0 12px 34px rgba(16,24,40,.14);padding:6px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .18s ease,transform .18s ease,visibility .18s;z-index:70}
.nav-dd:hover>.nav-dd-menu,.nav-dd:focus-within>.nav-dd-menu{opacity:1;visibility:visible;transform:translateY(0)}
.nav-dd-menu a{display:block;padding:9px 12px;border-radius:9px;font-size:13.5px;font-weight:600;color:var(--text);text-decoration:none;white-space:nowrap;transition:background .15s,color .15s}
.nav-dd-menu a .d{display:block;font-size:11.5px;font-weight:400;color:var(--muted);margin-top:2px}
.nav-dd-menu a:hover,.nav-dd-menu a.active{background:#eef1f6;color:var(--ink)}
.nav-ctrls{display:flex;align-items:center;gap:10px;flex:none}
.nav-ctrls .ai-brief-link{display:inline-flex;align-items:center;gap:5px;white-space:nowrap;flex:none;padding:5px 12px;border-radius:999px;background:var(--card);border:1px solid var(--grid);color:var(--text);font-size:12.5px;font-weight:600;line-height:1;text-decoration:none;transition:border-color .15s,color .15s}
.nav-ctrls .ai-brief-link:hover{border-color:var(--blue);color:var(--blue)}
.lang-toggle{display:inline-flex;position:relative;background:#eef1f6;border:1px solid var(--grid);border-radius:999px;padding:3px;cursor:pointer;flex:none}
.lang-toggle .pill{position:absolute;top:3px;left:3px;width:calc(50% - 3px);height:calc(100% - 6px);border-radius:999px;background:var(--blue);transition:transform .34s cubic-bezier(.34,1.4,.5,1)}
html[data-lang="zh"] .lang-toggle .pill{transform:translateX(100%)}
.lang-toggle .opt{position:relative;z-index:1;min-width:28px;text-align:center;padding:3px 9px;font-size:11.5px;font-weight:600;color:var(--muted);transition:color .25s;user-select:none}
html:not([data-lang="zh"]) .lang-toggle .en-opt{color:#fff}
html[data-lang="zh"] .lang-toggle .zh-opt{color:#fff}
.theme-switch{width:56px;height:27px;border-radius:999px;background:#eef1f6;border:1px solid var(--grid);position:relative;cursor:pointer;padding:0;flex:none}
.theme-switch .ic{position:absolute;top:50%;transform:translateY(-50%);font-size:10.5px;opacity:.5;line-height:1}
.theme-switch .ic.sun{right:8px}.theme-switch .ic.moon{left:8px}
.theme-switch .knob{position:absolute;top:2px;left:2px;width:22px;height:22px;border-radius:50%;background:var(--blue);display:flex;align-items:center;justify-content:center;font-size:11px;box-shadow:0 2px 5px rgba(0,0,0,.3);transform:translateX(29px);transition:transform .34s cubic-bezier(.34,1.45,.5,1),background .3s}
.theme-switch .knob::before{content:"☀️"}
html[data-theme="dark"]{--bg:#0f1115;--card:#181b21;--grid:#2a2f3a;--ink:#e8edf4;--text:#d7dce3;--muted:#8b93a1;--faint:#6b7280;--red:#e06464}
html[data-theme="dark"] a.nav-link:hover,html[data-theme="dark"] a.nav-link.active{background:#222732}
html[data-theme="dark"] .nav-dd-menu a:hover,html[data-theme="dark"] .nav-dd-menu a.active{background:#222732}
html[data-theme="dark"] .lang-toggle{background:#222732}
html[data-theme="dark"] .theme-switch{background:#222732}
html[data-theme="dark"] .theme-switch .knob{transform:translateX(0);background:#e8c15a}
html[data-theme="dark"] .theme-switch .knob::before{content:"🌙"}
.h1{font-size:30px;font-weight:800;color:var(--ink);letter-spacing:-.02em;margin:6px 0 4px}
.intro{color:var(--muted);font-size:14.5px;max-width:760px;margin-bottom:6px}
.note{border-left:3px solid var(--blue);padding:6px 0 6px 14px;margin:12px 0 4px;color:var(--text);font-size:13px;max-width:820px}
.sgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(330px,1fr));gap:20px;margin-top:22px}
@media(max-width:720px){.sgrid{grid-template-columns:1fr}}
.scard{background:var(--card);border:1px solid var(--grid);border-radius:18px;padding:22px;text-decoration:none;color:inherit;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s,border-color .15s}
.scard:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(16,24,64,.16);border-color:var(--blue)}
.scard-top{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.scard-top .ico{font-size:26px}
.scard-top h2{font-size:20px;font-weight:800;color:var(--ink);margin:0;letter-spacing:-.02em}
.exp{margin-left:auto;font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:#a01457;background:#fde7ef;padding:3px 8px;border-radius:7px;white-space:nowrap}
html[data-theme="dark"] .exp{background:#3a1d2b;color:#f08bb4}
.scard p{color:var(--muted);font-size:13.5px;margin:0 0 16px;min-height:38px}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px}
.metrics>div{background:var(--bg);border-radius:10px;padding:10px 8px;text-align:center}
html[data-theme="dark"] .metrics>div{background:var(--grid)}
.m-k{display:block;font-size:10px;color:var(--muted);text-transform:uppercase;font-weight:600;letter-spacing:.03em}
.m-v{display:block;font-size:18px;font-weight:800;color:var(--ink);margin-top:3px}
.m-v.win{color:var(--green)} .m-v.lose{color:var(--red)}
.m-sub{display:block;font-size:10.5px;color:var(--faint);margin-top:1px}
.scard-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:6px;gap:10px;flex-wrap:wrap}
.stance{font-size:12.5px;font-weight:700;color:var(--text);background:var(--bg);border:1px solid var(--grid);border-radius:8px;padding:5px 10px}
html[data-theme="dark"] .stance{background:var(--grid)}
.go{font-weight:700;color:var(--blue);font-size:14px}
.foot{margin-top:40px;padding-top:18px;border-top:1px solid var(--grid);font-size:12px;color:var(--faint);line-height:1.7;max-width:900px}
.cmdy-toggle{display:flex;gap:8px;flex-wrap:wrap;margin:22px 0 4px}
.cmdy-tab{appearance:none;cursor:pointer;border:1px solid var(--grid);background:var(--card);color:var(--muted);font-weight:700;font-size:14px;padding:9px 18px;border-radius:11px;transition:all .15s;display:inline-flex;align-items:center;gap:7px}
.cmdy-tab:hover{color:var(--ink);border-color:var(--blue)}
.cmdy-tab.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.cmdy-grid{display:none}
.cmdy-grid.active{display:grid;grid-template-columns:repeat(auto-fit,minmax(330px,1fr));gap:20px;margin-top:18px}
@media(max-width:720px){.cmdy-grid.active{grid-template-columns:1fr}}