.ti30-page{padding-top:20px;padding-bottom:60px}.ti30-hero{text-align:center;padding:30px 20px 20px}.ti30-hero h1{font-size:2rem;font-weight:700;color:var(--text);margin-bottom:8px}.ti30-hero p{color:var(--text-secondary);font-size:1.05rem;max-width:600px;margin:0 auto}.ti30-layout{display:flex;justify-content:center;align-items:flex-start;gap:24px;padding:0 20px;max-width:900px;margin:0 auto}.ti30-calculator-wrapper{flex-shrink:0}.ti30-body{width:340px;background:linear-gradient(180deg,#1a3a5c 0%,#152e4a 100%);border-radius:20px;padding:18px 16px 22px;box-shadow:0 8px 32px rgba(0,0,0,0.35),inset 0 1px 0 rgba(255,255,255,0.08);border:2px solid #0f2236}.ti30-top-label{display:flex;justify-content:space-between;align-items:center;padding:0 6px 10px;font-size:0.72rem;color:rgba(255,255,255,0.85);letter-spacing:0.5px}.ti30-brand-left{font-weight:400;font-style:italic}.ti30-brand-right{font-weight:700;font-size:0.8rem}.ti30-screen-bezel{background:#b0b8bf;border-radius:8px;padding:6px;margin-bottom:14px;box-shadow:inset 0 2px 6px rgba(0,0,0,0.3)}.ti30-screen{background:#c8d8c0;border-radius:4px;padding:8px 10px;min-height:90px;font-family:'Courier New',monospace;position:relative}.ti30-status-bar{display:flex;gap:10px;font-size:0.6rem;color:#7a8a72;padding-bottom:4px;border-bottom:1px solid #a8b8a0;margin-bottom:4px}.ti30-ind{text-transform:uppercase;font-weight:700;opacity:0.3}.ti30-ind.active{opacity:1;color:#2a3a22}.ti30-display{min-height:56px;display:flex;flex-direction:column;justify-content:flex-end}.ti30-input{font-size:1.3rem;color:#1a2a12;text-align:right;word-break:break-all;line-height:1.3;min-height:24px;overflow-x:auto}.ti30-result{font-size:1.1rem;color:#3a5a32;text-align:right;min-height:20px;font-weight:700}.ti30-history-mini{font-size:0.55rem;color:#6a7a62;text-align:right;max-height:14px;overflow:hidden}.ti30-buttons{display:flex;flex-direction:column;gap:6px;padding:4px 2px}.ti30-btn-row{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.ti30-btn-wrap{display:flex;flex-direction:column;align-items:center}.ti30-lbl-row{height:14px;display:flex;justify-content:center;align-items:flex-end;margin-bottom:2px}.ti30-lbl-2nd{font-size:0.55rem;color:#6dc5ff;font-weight:600;text-align:center;line-height:1}.ti30-lbl-2nd sup{font-size:0.45rem}.ti30-btn{width:100%;min-height:38px;border:none;border-radius:6px;font-size:0.82rem;font-weight:600;cursor:pointer;transition:all 0.1s;font-family:inherit;position:relative;text-align:center;line-height:1.1}.ti30-btn:active{transform:scale(0.94)}.ti30-btn sup{font-size:0.6rem}.ti30-btn.btn-2nd{background:linear-gradient(180deg,#3a9bdc 0%,#2a7bb8 100%);color:#fff;box-shadow:0 2px 4px rgba(0,0,0,0.3)}.ti30-btn.btn-2nd:hover{background:linear-gradient(180deg,#4aabec 0%,#3a8bc8 100%)}.ti30-btn.btn-2nd.active{background:linear-gradient(180deg,#ff9800 0%,#e68a00 100%);box-shadow:0 0 8px rgba(255,152,0,0.5)}.ti30-btn.btn-func{background:linear-gradient(180deg,#5a6a7a 0%,#4a5a68 100%);color:#fff;box-shadow:0 2px 4px rgba(0,0,0,0.25)}.ti30-btn.btn-func:hover{background:linear-gradient(180deg,#6a7a8a 0%,#5a6a78 100%)}.ti30-btn.btn-sci{background:linear-gradient(180deg,#3a4a5a 0%,#2e3e4e 100%);color:#e8eef4;box-shadow:0 2px 4px rgba(0,0,0,0.25)}.ti30-btn.btn-sci:hover{background:linear-gradient(180deg,#4a5a6a 0%,#3e4e5e 100%)}.ti30-btn.btn-mem{background:linear-gradient(180deg,#4a6a5a 0%,#3a5a4a 100%);color:#e8f4ee;box-shadow:0 2px 4px rgba(0,0,0,0.25)}.ti30-btn.btn-mem:hover{background:linear-gradient(180deg,#5a7a6a 0%,#4a6a5a 100%)}.ti30-btn.btn-num{background:linear-gradient(180deg,#e8eef4 0%,#d4dce6 100%);color:#1a2a3a;box-shadow:0 2px 4px rgba(0,0,0,0.15)}.ti30-btn.btn-num:hover{background:linear-gradient(180deg,#f0f4f8 0%,#dce4ee 100%)}.ti30-btn.btn-op{background:linear-gradient(180deg,#6a7a8a 0%,#5a6878 100%);color:#fff;font-size:1.1rem;box-shadow:0 2px 4px rgba(0,0,0,0.2)}.ti30-btn.btn-op:hover{background:linear-gradient(180deg,#7a8a9a 0%,#6a7888 100%)}.ti30-btn.btn-enter{background:linear-gradient(180deg,#2a7bb8 0%,#1a5a8a 100%);color:#fff;font-size:1.2rem;font-weight:700;box-shadow:0 2px 6px rgba(42,123,184,0.4)}.ti30-btn.btn-enter:hover{background:linear-gradient(180deg,#3a8bc8 0%,#2a6a9a 100%)}.ti30-history-panel{width:220px;background:var(--bg-card);border-radius:12px;padding:16px;border:1px solid var(--border);max-height:600px;overflow-y:auto}.ti30-history-panel h3{font-size:0.95rem;color:var(--text);margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border)}.ti30-history-list{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.ti30-empty-history{color:var(--text-secondary);font-size:0.85rem;text-align:center;padding:20px 0}.ti30-history-item{padding:8px 10px;background:var(--bg);border-radius:6px;cursor:pointer;transition:background 0.15s}.ti30-history-item:hover{background:var(--primary-bg)}.ti30-history-expr{font-size:0.78rem;color:var(--text-secondary)}.ti30-history-result{font-size:0.9rem;font-weight:600;color:var(--text)}.ti30-clear-history{width:100%;padding:8px;background:transparent;border:1px solid var(--border);border-radius:6px;color:var(--text-secondary);cursor:pointer;font-size:0.8rem;transition:all 0.15s}.ti30-clear-history:hover{background:#fee;color:#c00;border-color:#fcc}.ti30-info-section{max-width:900px;margin:40px auto 0;padding:0 20px}.ti30-info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.ti30-info-card{background:var(--bg-card);border-radius:12px;padding:24px;border:1px solid var(--border)}.ti30-info-card h2{font-size:1.15rem;color:var(--text);margin-bottom:12px}.ti30-info-card p{font-size:0.9rem;color:var(--text-secondary);line-height:1.6;margin-bottom:10px}.ti30-feature-list,.ti30-how-list{list-style:none;padding:0;margin:0}.ti30-feature-list li,.ti30-how-list li{font-size:0.88rem;color:var(--text-secondary);padding:5px 0;border-bottom:1px solid var(--border);line-height:1.5}.ti30-feature-list li:last-child,.ti30-how-list li:last-child{border-bottom:none}.ti30-how-list{list-style:decimal;padding-left:18px}@media (max-width:768px){.ti30-layout{flex-direction:column;align-items:center}.ti30-history-panel{width:100%;max-width:340px;max-height:200px}.ti30-info-grid{grid-template-columns:1fr}.ti30-hero h1{font-size:1.5rem}.ti30-body{width:320px}}@media (max-width:360px){.ti30-body{width:300px;padding:14px 10px 18px}.ti30-btn{min-height:34px;font-size:0.75rem}}