@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;600;700;800&family=Noto+Serif+SC:wght@600;700;900&display=swap');
:root{--ink:#111722;--muted:#697382;--line:#dfe4e9;--paper:#f5f6f3;--card:#fff;--blue:#2957ff;--green:#14835e;--red:#bc493d;--shadow:0 24px 70px rgba(25,34,49,.1)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:radial-gradient(circle at 85% 4%,#e3e9ff 0,transparent 28rem),var(--paper);font-family:Manrope,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.65}.shell{width:min(1120px,92%);margin:auto}.test-nav{border-bottom:1px solid var(--line);background:rgba(245,246,243,.78);backdrop-filter:blur(18px)}.nav-inner{display:flex;justify-content:space-between;align-items:center;min-height:76px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;letter-spacing:-.03em;text-decoration:none}.brand img{width:32px;height:32px;border-radius:9px}.brand span{margin-left:8px;color:#87909b;font:500 10px 'DM Mono',monospace;letter-spacing:.12em}.test-nav nav{display:flex;align-items:center;gap:25px}.test-nav nav a{color:var(--muted);font-size:13px;font-weight:700;text-decoration:none}.test-nav nav a:hover{color:var(--ink)}.nav-cta{padding:10px 15px;border:1px solid var(--ink);color:var(--ink)!important;border-radius:5px}.intro{padding:96px 0 65px}.eyebrow,.kicker,.question-label,.version{font:500 11px 'DM Mono',monospace;letter-spacing:.14em;text-transform:uppercase}.eyebrow{color:var(--blue)}.eyebrow i{display:inline-block;width:7px;height:7px;margin-right:6px;background:var(--blue);border-radius:50%;box-shadow:0 0 0 5px #dce3ff}.intro-grid{display:grid;grid-template-columns:1fr 220px;gap:50px;align-items:end}.kicker{margin:31px 0 13px;color:var(--muted)}h1,h2{font-family:"Noto Serif SC",Georgia,serif;letter-spacing:-.06em;line-height:1.1}h1{max-width:700px;margin:0;font-size:clamp(48px,8vw,92px);font-weight:900}h1 em{font-style:normal;color:var(--blue)}.lead{max-width:590px;margin:24px 0 0;color:var(--muted);font-size:17px}.stamp{padding:22px 20px;border:1px solid #b8c3dc;background:#edf1ff;transform:rotate(3deg);box-shadow:6px 7px 0 #cbd4ed}.stamp strong{display:block;font:500 20px/1.2 'DM Mono',monospace;letter-spacing:.06em}.stamp span{display:block;margin-top:14px;color:#65708a;font-size:11px}.test-panel{padding:34px;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:var(--card);box-shadow:var(--shadow)}.panel-head{display:flex;justify-content:space-between;align-items:start}.panel-head h2,.notes h2{margin:4px 0 25px;font-size:35px}.panel-head .kicker,.notes .kicker{margin:0}.version{padding:7px 9px;color:var(--blue);background:#eef1ff}.tabs{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:20px}.tab{display:flex;gap:15px;align-items:center;padding:16px;text-align:left;border:1px solid var(--line);border-radius:10px;background:#fbfcfc;color:var(--muted);font:inherit;cursor:pointer}.tab b{color:#a5adb7;font:500 12px 'DM Mono',monospace}.tab span{display:grid;color:var(--ink);font-weight:800}.tab small{color:var(--muted);font-size:11px;font-weight:500}.tab.is-active{border-color:var(--blue);background:#f0f3ff;box-shadow:inset 3px 0 var(--blue)}.question-card{padding:22px 25px;margin-bottom:25px;border-left:3px solid var(--blue);background:#f6f8fb}.question-card p{margin:9px 0 11px;font-family:"Noto Serif SC",serif;font-size:16px;line-height:1.9}.question-card small{color:var(--muted);font-size:12px}.question-card small strong{color:var(--ink)}.is-hidden{display:none!important}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:17px;margin-bottom:17px}.form-grid label{display:grid;gap:7px;color:var(--ink);font-size:13px;font-weight:800}.form-grid input,.form-grid select{width:100%;min-height:48px;padding:0 14px;border:1px solid #ccd3da;border-radius:7px;background:#fff;color:var(--ink);font:inherit;outline:none}.form-grid input:focus,.form-grid select:focus{border-color:var(--blue);box-shadow:0 0 0 3px #e4e9ff}.form-grid small{color:var(--muted);font-size:11px;font-weight:500}.options{max-width:570px}.form-actions{display:flex;align-items:center;gap:20px;margin-top:26px}.run-button{min-height:50px;padding:0 21px;border:0;border-radius:7px;background:var(--ink);color:#fff;font:800 14px Manrope;cursor:pointer;transition:transform .2s,background .2s}.run-button:hover{background:var(--blue);transform:translateY(-2px)}.run-button:disabled{opacity:.6;cursor:wait;transform:none}.run-button span{margin-left:16px;font-size:18px}.form-actions p{margin:0;color:var(--muted);font-size:11px}.result{margin-top:27px;padding:23px;border:1px solid var(--line);border-radius:10px;background:#f8fafb}.result-head{display:flex;align-items:center;gap:12px}.result-head h3{margin:0;font-size:22px}.result-badge{padding:5px 9px;border-radius:99px;font:700 11px 'DM Mono',monospace}.result-badge.ok{color:var(--green);background:#def3e9}.result-badge.drop{color:var(--red);background:#fbe5e0}.result-badge.skip{color:#68727c;background:#e9edf0}.metrics{display:flex;flex-wrap:wrap;gap:28px;margin:17px 0}.metric{display:grid;gap:2px}.metric span{color:var(--muted);font-size:11px}.metric b{font:700 17px 'DM Mono',monospace}.answer{max-height:210px;overflow:auto;padding:14px;border-radius:6px;background:#171d27;color:#e8edf4;white-space:pre-wrap;font:13px/1.7 'DM Mono',monospace}.result-note{margin:14px 0 0;color:var(--muted);font-size:12px}.notes{display:grid;grid-template-columns:1fr 1.4fr;gap:70px;padding:80px 0 35px}.note-list{padding-top:13px}.note-list p{display:flex;gap:18px;margin:0;padding:13px 0;border-bottom:1px solid var(--line);font-size:13px}.note-list b{min-width:72px;font:700 11px 'DM Mono',monospace}.note-list span{color:var(--muted)}.green{color:var(--green)}.red{color:var(--red)}.gray{color:#68727c}.disclaimer{padding:18px 0 45px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}.footer{display:flex;justify-content:space-between;padding:22px 0 35px;color:#8b939d;font:11px 'DM Mono',monospace}.footer a{color:var(--muted)}
@media(max-width:700px){.test-nav nav a:not(.nav-cta){display:none}.intro{padding:65px 0 45px}.intro-grid{grid-template-columns:1fr;gap:30px}.stamp{justify-self:start}.test-panel{padding:22px 17px}.tabs,.form-grid,.notes{grid-template-columns:1fr}.tab{padding:13px}.form-actions{align-items:stretch;flex-direction:column;gap:12px}.run-button{width:100%}.notes{gap:15px;padding-top:55px}.panel-head h2,.notes h2{font-size:29px}h1{font-size:52px;overflow-wrap:anywhere}.lead{font-size:15px}.shell{width:min(1120px,calc(100% - 28px))}.test-nav{overflow:hidden}.brand{min-width:0}.brand span{display:none}.brand{font-size:14px}.test-nav nav{gap:8px}.nav-cta{padding:8px 9px;font-size:11px!important}.result,.answer,.metric{min-width:0;overflow-wrap:anywhere}}
@media(max-width:700px){html,body{overflow-x:hidden}.test-panel{overflow:hidden}.question-card p{overflow-wrap:anywhere}.metrics{min-width:0}}

button:disabled,input:disabled,select:disabled{cursor:not-allowed;opacity:.55}.preview-wrap{margin-top:24px;border-top:1px solid var(--line);padding-top:18px;max-width:100%;overflow:hidden}.preview-tabs{display:flex;gap:6px;margin-bottom:12px}.preview-tab,.source-button,.dialog-actions button{border:1px solid var(--line);background:var(--card);color:var(--ink);padding:9px 13px;border-radius:4px;font:700 12px Manrope,sans-serif;cursor:pointer}.preview-tab.is-active{background:var(--ink);color:#fff}.preview-frame{display:block;width:100%;max-width:100%;height:430px;border:1px solid var(--line);background:#fff}.source-button{margin-top:12px}.source-button[hidden],.preview-frame[hidden]{display:none}dialog{width:min(900px,92vw);max-width:calc(100vw - 28px);max-height:86vh;overflow:hidden;border:1px solid var(--line);padding:0;background:var(--card);color:var(--ink);box-shadow:var(--shadow)}dialog::backdrop{background:rgba(17,23,34,.55)}.dialog-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line)}.dialog-head h3{margin:0}.dialog-head button{border:0;background:transparent;font-size:26px;cursor:pointer}.dialog-actions{padding:12px 18px;border-top:1px solid var(--line)}#source-code{max-width:100%;max-height:62vh;overflow:auto;margin:0;padding:18px;white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.55 'DM Mono',monospace;background:#f4f5f3}