:root{--blue:#1A5CFF;--blue-deep:#0F4BE0;--blue-soft:#EBF1FF;--blue-softer:#F4F8FF;--navy:#0A1F44;--ink-2:#42537A;--ink-3:#8494B8;--bg:#F4F7FE;--surface:#FFFFFF;--line:#E3EAF7;--line-strong:#D2DEF3;--l1:#5B7DB8;--l1-bg:#EDF2FA;--l2:#B47904;--l2-bg:#FBF3E0;--l3:#C2410C;--l3-bg:#FDEEE4;--l4:#C81E1E;--l4-bg:#FCE9E9;--green:#0F8A4C;--green-bg:#E6F5EC;--r-card:14px;--r-ctl:9px;--shadow-sm:0 1px 2px rgba(15,43,110,.05),0 4px 12px -6px rgba(15,43,110,.08);--shadow-md:0 1px 2px rgba(15,43,110,.05),0 12px 32px -12px rgba(15,43,110,.14);--shadow-lg:0 2px 4px rgba(15,43,110,.06),0 24px 56px -16px rgba(15,43,110,.22);--font:-apple-system,"PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;--mono:ui-monospace,"SF Mono","JetBrains Mono",monospace;--ease:cubic-bezier(.16,1,.3,1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:var(--font);font-size:14.5px;line-height:1.7;color:var(--navy);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden}img,svg{display:block}a{color:var(--blue);text-decoration:none}a:hover{color:var(--blue-deep)}button{font-family:var(--font);cursor:pointer;border:none;background:none;color:inherit}input,select,textarea{font-family:var(--font);font-size:14.5px;color:var(--navy)}::selection{background:#1a5cff29}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:#c9d6ee;border-radius:8px;border:2px solid var(--bg)}::-webkit-scrollbar-track{background:transparent}h1,h2,h3,h4{font-weight:700;line-height:1.3;letter-spacing:-.01em}.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}.muted{color:var(--ink-3)}.sub{color:var(--ink-2)}.nowrap{white-space:nowrap}[data-reveal]{opacity:0;transform:translateY(14px)}[data-reveal].in{opacity:1;transform:translateY(0);transition:opacity .6s var(--ease),transform .6s var(--ease)}.badge{display:inline-flex;align-items:center;gap:4px;height:22px;padding:0 9px;border-radius:999px;font-size:11.5px;font-weight:600;white-space:nowrap;letter-spacing:.01em}.badge .dot{width:5px;height:5px;border-radius:50%;background:currentColor}.g1{background:var(--l4-bg);color:var(--l4)}.g2{background:#fdf0e2;color:#b45309}.g3{background:var(--blue-soft);color:var(--blue-deep)}.g4{background:#eef1f8;color:#66738f}.lb1{background:var(--l1-bg);color:var(--l1)}.lb2{background:var(--l2-bg);color:var(--l2)}.lb3{background:var(--l3-bg);color:var(--l3)}.lb4{background:var(--l4-bg);color:var(--l4)}.b-green{background:var(--green-bg);color:var(--green)}.b-gray{background:#eef1f8;color:#66738f}.b-blue{background:var(--blue-soft);color:var(--blue-deep)}.b-outline{background:#fff;border:1px solid var(--line-strong);color:var(--ink-2)}.chip{display:inline-flex;align-items:center;gap:5px;height:29px;padding:0 13px;border-radius:999px;font-size:12.5px;font-weight:600;color:var(--ink-2);background:var(--surface);border:1px solid var(--line-strong);transition:all .16s var(--ease);white-space:nowrap}.chip:hover{border-color:var(--blue);color:var(--blue)}.chip.on{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 3px 10px -3px #1a5cff80}.bar{height:6px;border-radius:99px;background:#e8eef9;overflow:hidden}.bar>i{display:block;height:100%;border-radius:99px;background:var(--blue);transition:width .8s var(--ease)}.note{display:flex;gap:10px;align-items:flex-start;padding:13px 16px;border-radius:12px;font-size:13px;line-height:1.65}.note-blue{background:var(--blue-softer);border:1px solid #D8E5FF;color:var(--ink-2)}.note-amber{background:#fffaee;border:1px solid #F3E3BC;color:#7a5b13}.note-red{background:var(--l4-bg);border:1px solid #F3CACA;color:#8f1d1d}@keyframes pulseRing{0%{box-shadow:0 0 #1a5cff66}70%{box-shadow:0 0 0 10px #1a5cff00}to{box-shadow:0 0 #1a5cff00}}.pulse{animation:pulseRing 1s var(--ease) 2}.scroll-target{scroll-margin-top:24px}.toast{position:fixed;left:50%;bottom:44px;transform:translate(-50%,16px);background:#0a1f44;color:#fff;font-size:13px;font-weight:600;padding:10px 20px;border-radius:999px;box-shadow:var(--shadow-lg);opacity:0;transition:opacity .25s var(--ease),transform .25s var(--ease);z-index:200;pointer-events:none;white-space:nowrap}.toast.show{opacity:1;transform:translate(-50%)}@media (prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:1ms!important;transition-duration:1ms!important}[data-reveal]{opacity:1;transform:none}}