.calc-tool{padding-block:22px;background:var(--section-bg)}.calc-breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:.84rem;color:var(--muted);margin-bottom:16px}.calc-breadcrumb a{color:var(--muted);font-weight:500}.calc-breadcrumb a:hover{color:var(--primary)}.calc-breadcrumb .sep{width:14px;height:14px;opacity:.55}.calc-breadcrumb .current{color:var(--primary);font-weight:600}[data-theme=dark] .calc-breadcrumb{color:#c7c3dc}[data-theme=dark] .calc-breadcrumb a{color:#bdb8d4}[data-theme=dark] .calc-breadcrumb a:hover{color:var(--primary-light)}[data-theme=dark] .calc-breadcrumb .current{color:var(--primary-light)}.calc-side{position:sticky;top:calc(var(--header-h) + 22px)}.side-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);padding:18px}.side-card+.side-card{margin-top:18px}.side-title{font-size:.74rem;font-weight:700;letter-spacing:.6px;text-transform:uppercase;color:var(--muted);margin-bottom:12px;padding-inline:6px}.side-list{display:flex;flex-direction:column;gap:2px}.side-list a{display:flex;align-items:center;gap:12px;padding:9px 10px;border-radius:12px;font-size:.9rem;font-weight:500;color:var(--text);transition:background var(--transition),color var(--transition)}.side-list a:hover{background:var(--bg-soft)}.side-list a.active{background:var(--tint-purple);color:var(--primary-dark);font-weight:600}[data-theme=dark] .side-list a.active{color:var(--primary-light)}.side-list .icon-chip{width:34px;height:34px;border-radius:9px}.side-list .icon-chip img{width:18px;height:18px}.sci-calc{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-md);padding:clamp(14px,1.8vh,22px);display:flex;flex-direction:column;gap:clamp(10px,1.6vh,16px);min-height:calc(100dvh - var(--header-h) - 88px)}.sci-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px 18px;flex-wrap:wrap}.sci-heading{display:flex;align-items:center;gap:12px}.sci-heading .icon-chip{width:46px;height:46px;border-radius:12px}.sci-heading .icon-chip img{width:24px;height:24px}.sci-heading h1{font-size:clamp(1.05rem, 2.2vw, 1.35rem);font-weight:700;line-height:1.15}.sci-heading p{font-size:.82rem;color:var(--muted)}.sci-modes{display:flex;align-items:center;gap:8px}.mode-label{font-size:.82rem;color:var(--muted);margin-right:2px}.mode-pill{padding:7px 15px;border-radius:var(--r-pill);border:1px solid var(--border-strong);background:var(--card);color:var(--muted);font-size:.82rem;font-weight:600;transition:all var(--transition)}.mode-pill:hover{border-color:var(--primary);color:var(--primary)}.mode-pill.active{background:var(--primary-grad);color:#fff;border-color:transparent;box-shadow:var(--shadow-primary)}.sci-display{flex:0 0 auto;min-height:clamp(80px,12vh,130px);background:linear-gradient(145deg,#4b3ba6 0,#2e2568 100%);border-radius:var(--r-md);padding:clamp(12px,2vh,22px) clamp(16px,2.5vw,28px);text-align:right;display:flex;flex-direction:column;justify-content:center;gap:6px;overflow:hidden;box-shadow:inset 0 1px 0 rgba(255,255,255,.08)}[data-theme=dark] .sci-display{background:linear-gradient(145deg,#2e2568 0,#1a1540 100%);border:1px solid var(--border)}.sci-expr{color:rgba(255,255,255,.5);font-size:clamp(.85rem, 2vh, 1.05rem);white-space:nowrap;overflow-x:auto}.sci-result{color:#fff;font-size:clamp(1.8rem, 5vh, 2.8rem);font-weight:600;letter-spacing:.5px;line-height:1.1;white-space:nowrap;overflow-x:auto;transition:opacity var(--transition)}.sci-result.preview{opacity:.5}.sci-keys{flex:1 1 auto;min-height:0;display:grid;grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(8,1fr);gap:clamp(6px,1.1vh,11px)}.sci-key{display:flex;align-items:center;justify-content:center;border-radius:clamp(10px,1.4vh,15px);background:var(--card);border:1px solid var(--border);color:var(--heading);font-size:clamp(.9rem, 1.9vh, 1.15rem);font-weight:600;transition:transform var(--transition),box-shadow var(--transition),background var(--transition),color var(--transition)}[data-theme=dark] .sci-key{background:#221d3b;border-color:#2e2950}.sci-key:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm)}.sci-key:active{transform:translateY(0)}.sci-key.fn{background:var(--tint-purple);border-color:transparent;color:var(--primary-dark);font-size:clamp(.8rem, 1.7vh, 1.02rem)}[data-theme=dark] .sci-key.fn{color:var(--primary-light)}.sci-key.op{background:var(--primary-grad);border-color:transparent;color:#fff;box-shadow:var(--shadow-primary);font-size:clamp(1.1rem, 2.4vh, 1.35rem)}.sci-key.clr{background:var(--tint-red);border-color:transparent;color:#e0415b}.sci-key.eq{background:linear-gradient(135deg,#7c5cff 0,#5b3ee8 100%);border-color:transparent;color:#fff;font-size:clamp(1.2rem, 2.6vh, 1.5rem);box-shadow:var(--shadow-primary)}.span-2{grid-column:span 2}.span-3{grid-column:span 3}.calc-panels{padding-block:26px;background:var(--bg)}.panel-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);padding:22px;height:100%}.panel-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}.panel-head .p-ic{width:40px;height:40px;border-radius:11px;display:flex;align-items:center;justify-content:center}.panel-head .p-ic .micon{width:22px;height:22px}.p-ic.chip-purple{color:var(--primary)}.p-ic.chip-green{color:var(--green-dark)}.p-ic.chip-blue{color:#3b82f6}.panel-head h2{font-size:1.05rem;font-weight:600}.panel-sub{font-size:.85rem;color:var(--muted);margin:-6px 0 14px}.history-list{display:flex;flex-direction:column;gap:9px}.history-list li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 14px;border-radius:12px;background:var(--bg-soft);font-size:.88rem}.history-list .h-expr{color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-list .h-res{color:var(--heading);font-weight:700;flex-shrink:0}.history-list li[data-expr]{cursor:pointer;transition:background var(--transition)}.history-list li[data-expr]:hover{background:var(--tint-purple)}.history-list .h-empty{justify-content:center;background:0 0;color:var(--muted);font-size:.85rem;text-align:center}.example-chips{display:flex;flex-wrap:wrap;gap:9px}.ex-chip{padding:9px 15px;border-radius:var(--r-pill);background:var(--tint-purple);color:var(--primary-dark);font-size:.86rem;font-weight:600;border:1px solid transparent;transition:background var(--transition),color var(--transition),transform var(--transition)}[data-theme=dark] .ex-chip{color:var(--primary-light)}.ex-chip:hover{background:var(--primary);color:#fff;transform:translateY(-1px)}.mini-steps{display:flex;flex-direction:column}.mini-steps li{position:relative;display:flex;gap:14px;padding-bottom:20px}.mini-steps li:last-child{padding-bottom:0}.mini-steps li:not(:last-child)::before{content:"";position:absolute;left:13px;top:30px;bottom:0;width:2px;background:var(--tint-purple)}.mini-steps .s-num{position:relative;z-index:1;flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--primary-grad);color:#fff;font-size:.8rem;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 10px rgba(92,62,232,.28)}.mini-steps li span:not(.s-num){padding-top:4px;font-size:.9rem;color:var(--text);line-height:1.55}@media (max-width:767.98px){.calc-side{position:static;margin-top:20px}.sci-calc{min-height:calc(100dvh - var(--header-h) - 84px)}}@media (max-width:560px){.sci-heading p{display:none}.sci-heading .icon-chip{width:40px;height:40px}.mode-label{display:none}.mode-pill{padding:6px 13px}}