*{box-sizing:border-box}html,body{margin:0;height:100%;font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(1200px 800px at 20% -20%,#2f3854 0%,#14192a 45%,#0d111d 100%);color:#e7ebf4}.app-shell{max-width:1320px;margin:0 auto;padding:18px;display:grid;grid-template-columns:minmax(760px,1fr) 340px;gap:16px;min-height:100%}.board-panel{border:1px solid rgba(255,255,255,.12);border-radius:20px;background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));backdrop-filter:blur(8px);box-shadow:0 24px 46px rgba(0,0,0,.35);display:flex;flex-direction:column;align-items:center;padding:12px}.stage{width:100%;max-width:100%;height:auto;margin:0 auto;aspect-ratio:9/10;border-radius:16px;overflow:hidden;touch-action:manipulation}.stage canvas{display:block;width:100%!important;height:auto!important;touch-action:manipulation}.action-row{width:100%;display:flex;justify-content:center;align-items:center;gap:10px;margin-top:10px}.icon-btn{width:40px;height:40px;border-radius:12px;border:1px solid rgba(255,255,255,.22);background:linear-gradient(180deg,#2b3a58,#1f2b44);box-shadow:0 6px 14px rgba(0,0,0,.32),inset 0 1px 0 rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .16s ease;padding:0}.icon-btn:active,.icon-btn.active{transform:translateY(2px);box-shadow:inset 0 3px 10px rgba(0,0,0,.42),0 2px 6px rgba(0,0,0,.24)}.icon-svg{width:20px;height:20px;stroke:#edf2ff;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}.led-btn{background:linear-gradient(180deg,#344051,#212a37)}.led{width:15px;height:15px;border-radius:999px;display:block;border:1px solid rgba(255,255,255,.45);box-shadow:0 0 0 1px rgba(0,0,0,.26) inset}.led-red{background:radial-gradient(circle at 30% 30%,#ff8c8c 0,#ff3d3d 42%,#ba1212 100%);box-shadow:0 0 10px rgba(255,65,65,.65),0 0 0 1px rgba(0,0,0,.35) inset}.led-black{background:radial-gradient(circle at 30% 30%,#8f8f8f 0,#3f3f3f 42%,#161616 100%);box-shadow:0 0 8px rgba(0,0,0,.55),0 0 0 1px rgba(0,0,0,.45) inset}.led-btn.active .led-black{box-shadow:inset 0 0 8px rgba(255,255,255,.35),inset 0 -3px 10px rgba(0,0,0,.6),0 0 12px rgba(168,85,247,.95),0 0 24px rgba(124,58,237,.95),0 0 42px rgba(59,130,246,.9),0 0 68px rgba(56,189,248,.85),0 0 96px rgba(99,102,241,.78)}.led-btn:not(.active) .led{opacity:.35;box-shadow:inset 0 0 0 1px rgba(0,0,0,.55)}.meta-row{width:100%;margin-top:10px;display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}.meta-item{display:flex;align-items:center;gap:7px;padding:6px 10px;border-radius:10px;background:rgba(11,18,32,.72);border:1px solid rgba(255,255,255,.12)}.meta-item span{font-size:13px;color:#cfd8ef}input{height:34px;width:88px;border-radius:9px;border:1px solid rgba(255,255,255,.2);background:#0d1628;color:#e7ebf4;text-align:center}.engine-toggle{height:34px;padding:0 12px;border-radius:999px;border:1px solid rgba(255,255,255,.2);background:linear-gradient(180deg,#205b2e,#173f21);color:#eaffef;font-weight:700}.engine-toggle.off{background:linear-gradient(180deg,#5f1f1f,#3f1717);color:#ffe9e9}.engine-state{padding:7px 10px;border-radius:999px;font-size:12px;font-weight:700;border:1px solid rgba(255,255,255,.2);background:rgba(20,86,41,.36);color:#dcffe7}.engine-state.off{background:rgba(92,28,28,.4);color:#ffdada}.badge{padding:8px 12px;border-radius:999px;background:linear-gradient(135deg,#40598d,#2a3f6b);font-weight:700;font-size:13px}.status{margin-top:10px;width:100%;padding:10px 12px;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:rgba(13,21,39,.7);min-height:42px;display:flex;align-items:center;justify-content:center}.control-panel{border:1px solid rgba(255,255,255,.12);border-radius:20px;background:linear-gradient(180deg,rgba(255,255,255,.09),rgba(255,255,255,.03));backdrop-filter:blur(8px);box-shadow:0 24px 46px rgba(0,0,0,.35);padding:14px;display:flex;flex-direction:column}.panel-title{font-size:18px;font-weight:800;margin-bottom:10px}.history{max-height:calc(100vh - 180px);overflow:auto;display:flex;flex-direction:column;gap:6px}.hist-item{display:grid;grid-template-columns:44px 1fr 1fr;gap:8px;padding:8px 10px;border-radius:10px;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.03);font-size:13px}@media (max-width:1100px){.app-shell{grid-template-columns:1fr;padding:10px}.control-panel{order:2}.board-panel{order:1}}@media (max-width:520px){.action-row{gap:8px}.icon-btn{width:36px;height:36px;border-radius:10px}.icon-svg{width:18px;height:18px}.meta-row{gap:8px}.meta-item{padding:5px 8px}}