:root{--bg-primary:#f8fafc;--bg-secondary:#ffffff;--bg-tertiary:#f1f5f9;--bg-card:#ffffff;--bg-screen:#0f172a;--screen-text:#38bdf8;--screen-subtext:#94a3b8;--text-main:#0f172a;--text-muted:#64748b;--text-light:#94a3b8;--text-inverse:#ffffff;--primary:#2563eb;--primary-hover:#1d4ed8;--primary-light:#dbeafe;--primary-glow:rgba(37,99,235,0.2);--accent-teal:#0d9488;--accent-rose:#e11d48;--accent-amber:#d97706;--accent-purple:#7c3aed;--btn-num-bg:#ffffff;--btn-num-border:#e2e8f0;--btn-num-text:#0f172a;--btn-num-hover:#f1f5f9;--btn-fn-bg:#f1f5f9;--btn-fn-border:#cbd5e1;--btn-fn-text:#1e293b;--btn-fn-hover:#e2e8f0;--btn-op-bg:#eff6ff;--btn-op-border:#bfdbfe;--btn-op-text:#1d4ed8;--btn-op-hover:#dbeafe;--btn-eq-bg:linear-gradient(135deg,#2563eb 0%,#1d4ed8 100%);--btn-eq-text:#ffffff;--btn-eq-shadow:0 4px 14px rgba(37,99,235,0.35);--btn-ac-bg:#fef2f2;--btn-ac-border:#fecaca;--btn-ac-text:#dc2626;--btn-ac-hover:#fee2e2;--btn-mem-bg:#faf5ff;--btn-mem-border:#e9d5ff;--btn-mem-text:#7e22ce;--btn-mem-hover:#f3e8ff;--border-light:#e2e8f0;--border-focus:#3b82f6;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.07),0 2px 4px -2px rgba(0,0,0,0.05);--shadow-lg:0 10px 25px -5px rgba(0,0,0,0.08),0 8px 10px -6px rgba(0,0,0,0.04);--shadow-xl:0 20px 30px -10px rgba(0,0,0,0.12);--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:22px;--radius-full:9999px;--transition-fast:0.15s ease;--transition-normal:0.25s ease}[data-theme="dark"]{--bg-primary:#090d16;--bg-secondary:#111827;--bg-tertiary:#1f2937;--bg-card:#131c2e;--bg-screen:#060911;--screen-text:#38bdf8;--screen-subtext:#64748b;--text-main:#f8fafc;--text-muted:#94a3b8;--text-light:#64748b;--text-inverse:#090d16;--primary:#3b82f6;--primary-hover:#60a5fa;--primary-light:#1e3a8a;--primary-glow:rgba(59,130,246,0.25);--btn-num-bg:#1e293b;--btn-num-border:#334155;--btn-num-text:#f8fafc;--btn-num-hover:#293548;--btn-fn-bg:#141e30;--btn-fn-border:#28354b;--btn-fn-text:#93c5fd;--btn-fn-hover:#1e2c44;--btn-op-bg:#172554;--btn-op-border:#1e40af;--btn-op-text:#60a5fa;--btn-op-hover:#1e3a8a;--btn-eq-bg:linear-gradient(135deg,#3b82f6 0%,#2563eb 100%);--btn-eq-text:#ffffff;--btn-eq-shadow:0 4px 18px rgba(59,130,246,0.45);--btn-ac-bg:#3f1219;--btn-ac-border:#7f1d1d;--btn-ac-text:#f87171;--btn-ac-hover:#541721;--btn-mem-bg:#2e1065;--btn-mem-border:#581c87;--btn-mem-text:#c084fc;--btn-mem-hover:#3b0764;--border-light:#1e293b;--border-focus:#60a5fa;--shadow-sm:0 1px 2px 0 rgba(0,0,0,0.3);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.4);--shadow-lg:0 10px 25px -5px rgba(0,0,0,0.5);--shadow-xl:0 20px 30px -10px rgba(0,0,0,0.65)}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{font-family:'Outfit',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:16px;scroll-behavior:smooth;background-color:var(--bg-primary);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;-webkit-text-size-adjust:100%;overflow-x:hidden;width:100%}body{min-height:100vh;display:flex;flex-direction:column;background-color:var(--bg-primary);color:var(--text-main);transition:background-color var(--transition-normal),color var(--transition-normal);overflow-x:hidden;width:100%;max-width:100%;position:relative}button{font-family:inherit;cursor:pointer;border:none;background:none;outline:none;user-select:none}input,select,textarea{font-family:inherit;font-size:0.95rem}a{color:var(--primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-hover);text-decoration:none}.logo,.logo:hover,.logo:focus,.logo-text,.logo-text:hover,button,button:hover,button:focus,.action-btn,.action-btn:hover,.btn-primary,.btn-primary:hover,.btn-signin,.btn-signin:hover,.pill-chip,.pill-chip:hover,.all-calculators-btn,.all-calculators-btn:hover,.tab-btn,.tab-btn:hover{text-decoration:none !important}.header-container{position:sticky;top:0;z-index:100;background-color:var(--bg-secondary);border-bottom:1px solid var(--border-light);box-shadow:var(--shadow-sm);transition:background-color var(--transition-normal),border-color var(--transition-normal)}.header-inner{max-width:1280px;margin:0 auto;padding:0.75rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1.5rem}.brand-group{display:flex;align-items:center;gap:0.75rem}.logo{display:flex;align-items:center;gap:0.6rem;text-decoration:none}.logo-icon{width:36px;height:36px;border-radius:var(--radius-md);background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#ffffff;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 10px rgba(37,99,235,0.3)}.logo-text{font-size:1.35rem;font-weight:800;letter-spacing:-0.5px;color:var(--text-main)}.logo-accent{color:var(--primary)}.badge-tag{font-size:0.75rem;font-weight:600;background-color:var(--primary-light);color:var(--primary);padding:0.2rem 0.6rem;border-radius:var(--radius-full);display:inline-block}@media (max-width:768px){.badge-tag{display:none}}.header-search-wrap{flex:1;max-width:480px;position:relative}.header-search-box{display:flex;align-items:center;background-color:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-full);padding:0.45rem 0.9rem;gap:0.5rem;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.header-search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow);background-color:var(--bg-secondary)}.search-icon{color:var(--text-muted);flex-shrink:0}.header-search-box input{border:none;background:transparent;width:100%;color:var(--text-main);outline:none;font-size:0.9rem}.shortcut-key{font-size:0.7rem;background-color:var(--bg-secondary);border:1px solid var(--border-light);padding:0.1rem 0.4rem;border-radius:4px;color:var(--text-muted)}.search-dropdown-results{position:absolute;top:calc(100%+8px);left:0;right:0;background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);max-height:380px;overflow-y:auto;z-index:1000;padding:0.5rem 0}.header-actions{display:flex;align-items:center;gap:0.6rem}.action-btn{width:38px;height:38px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:var(--text-muted);background-color:var(--bg-tertiary);border:1px solid var(--border-light);position:relative;transition:all var(--transition-fast)}.action-btn:hover{color:var(--text-main);background-color:var(--border-light)}[data-theme="light"] .moon-icon{display:block}[data-theme="light"] .sun-icon{display:none}[data-theme="dark"] .moon-icon{display:none}[data-theme="dark"] .sun-icon{display:block}.history-count{position:absolute;top:-4px;right:-4px;background-color:var(--primary);color:#fff;font-size:0.65rem;font-weight:700;min-width:16px;height:16px;border-radius:8px;display:flex;align-items:center;justify-content:center;padding:0 3px}.btn-signin{font-size:0.9rem;font-weight:600;color:var(--primary);padding:0.45rem 1rem;border-radius:var(--radius-full);border:1px solid var(--primary);transition:all var(--transition-fast)}.btn-signin:hover{background-color:var(--primary);color:#ffffff}@media (max-width:680px){.header-inner{padding:0.5rem 0.75rem;gap:0.5rem;flex-wrap:wrap;justify-content:space-between}.brand-group{gap:0.45rem}.logo-icon{width:32px;height:32px}.logo-text{font-size:1.15rem}.header-actions{gap:0.35rem}.action-btn{width:34px;height:34px}.btn-signin{font-size:0.8rem;padding:0.35rem 0.65rem}.header-search-wrap{order:3;width:100%;max-width:100%;margin-top:0.2rem}.header-search-box{padding:0.4rem 0.75rem}.shortcut-key{display:none}}.main-content{flex:1;max-width:1280px;width:100%;margin:0 auto;padding:2rem 1.25rem 4rem}.hero-calc-section{margin-bottom:3.5rem}.calc-layout-grid{display:grid;grid-template-columns:minmax(320px,560px) 1fr;gap:2rem;align-items:start}@media (max-width:980px){.calc-layout-grid{grid-template-columns:1fr}}@media (max-width:680px){.main-content{padding:1rem 0.75rem 3rem}.hero-calc-section{margin-bottom:2rem}.calc-layout-grid{gap:1.25rem}}.sci-calc-card{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);padding:1.5rem;display:flex;flex-direction:column;gap:1rem;position:relative;transition:box-shadow var(--transition-normal)}.calc-top-bar{display:flex;align-items:center;justify-content:space-between}.calc-status-badges{display:flex;align-items:center;gap:0.4rem}.pill-badge{font-size:0.7rem;font-weight:700;padding:0.15rem 0.5rem;border-radius:var(--radius-full);background-color:var(--bg-tertiary);color:var(--text-muted);border:1px solid var(--border-light);letter-spacing:0.5px}.memory-badge{background-color:var(--btn-mem-bg);color:var(--btn-mem-text);border-color:var(--btn-mem-border)}.status-live{background-color:rgba(16,185,129,0.15);color:#10b981;border-color:rgba(16,185,129,0.25)}.calc-top-tools{display:flex;align-items:center;gap:0.35rem}.tool-icon-btn{width:32px;height:32px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--text-muted);background:var(--bg-tertiary);transition:all var(--transition-fast)}.tool-icon-btn:hover{color:var(--text-main);background:var(--border-light)}.calc-screen{background-color:var(--bg-screen);border-radius:var(--radius-lg);padding:1.25rem 1.5rem;box-shadow:inset 0 2px 8px rgba(0,0,0,0.5);display:flex;flex-direction:column;justify-content:flex-end;min-height:105px;text-align:right;overflow:hidden;border:1px solid rgba(255,255,255,0.08);width:100%;box-sizing:border-box}@media (max-width:680px){.calc-screen{padding:0.85rem 1rem;min-height:85px}}.calc-input{font-family:'JetBrains Mono',monospace;font-size:1rem;color:var(--screen-subtext);min-height:1.4rem;white-space:nowrap;overflow-x:auto;scrollbar-width:none;letter-spacing:0.5px}.calc-input::-webkit-scrollbar{display:none}.calc-output{font-family:'JetBrains Mono',monospace;font-size:clamp(1.65rem,6.5vw,2.25rem);font-weight:700;color:var(--screen-text);line-height:1.2;word-break:break-all;white-space:nowrap;overflow-x:auto;scrollbar-width:none;text-shadow:0 0 15px rgba(56,189,248,0.35);letter-spacing:-0.5px}.calc-output::-webkit-scrollbar{display:none}.calc-keyboard-container{display:grid;grid-template-columns:1.15fr 1fr;gap:0.75rem;width:100%;box-sizing:border-box}@media (max-width:680px){.calc-keyboard-container{grid-template-columns:1fr;gap:0.6rem}#homefunbtn{order:2}}.calc-func-panel,.calc-num-panel{display:flex;flex-direction:column;gap:0.45rem;width:100%}.key-row{display:flex;gap:0.45rem;width:100%}@media (max-width:480px){.key-row{gap:0.3rem}.calc-func-panel,.calc-num-panel{gap:0.35rem}}.calc-btn{flex:1;min-height:44px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);font-weight:600;font-size:0.95rem;border:1px solid transparent;transition:all 0.12s ease;padding:0 0.25rem;touch-action:manipulation}@media (max-width:480px){.calc-btn{min-height:42px;font-size:clamp(0.72rem,2.7vw,0.9rem);padding:0 1px;border-radius:6px}}.calc-btn:active{transform:scale(0.96)}.btn-num{background-color:var(--btn-num-bg);border-color:var(--btn-num-border);color:var(--btn-num-text);font-size:1.15rem;font-weight:700;box-shadow:var(--shadow-sm)}.btn-num:hover{background-color:var(--btn-num-hover)}.btn-fn{background-color:var(--btn-fn-bg);border-color:var(--btn-fn-border);color:var(--btn-fn-text);font-size:0.88rem}.btn-fn:hover{background-color:var(--btn-fn-hover)}.btn-const{background-color:var(--btn-fn-bg);border-color:var(--btn-fn-border);color:var(--primary);font-style:italic;font-size:1rem}.btn-const:hover{background-color:var(--btn-fn-hover)}.btn-op{background-color:var(--btn-op-bg);border-color:var(--btn-op-border);color:var(--btn-op-text);font-size:1.2rem;font-weight:700}.btn-op:hover{background-color:var(--btn-op-hover)}.btn-paren{background-color:var(--btn-fn-bg);border-color:var(--btn-fn-border);color:var(--text-main);font-size:1.05rem}.btn-clear{background-color:var(--btn-ac-bg);border-color:var(--btn-ac-border);color:var(--btn-ac-text);font-weight:800}.btn-clear:hover{background-color:var(--btn-ac-hover)}.btn-back{background-color:var(--btn-fn-bg);border-color:var(--btn-fn-border);color:var(--btn-fn-text)}.btn-back:hover{background-color:var(--btn-fn-hover)}.btn-memory{background-color:var(--btn-mem-bg);border-color:var(--btn-mem-border);color:var(--btn-mem-text);font-size:0.85rem}.btn-memory:hover{background-color:var(--btn-mem-hover)}.btn-equals{background:var(--btn-eq-bg);color:var(--btn-eq-text);font-size:1.35rem;font-weight:800;box-shadow:var(--btn-eq-shadow)}.btn-equals:hover{filter:brightness(1.1)}.angle-mode-selector{flex:2;display:flex;background-color:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:2px;gap:2px}.radio-label{flex:1;display:flex;align-items:center;justify-content:center;font-size:0.75rem;font-weight:700;cursor:pointer;border-radius:var(--radius-sm);color:var(--text-muted);transition:all var(--transition-fast)}.radio-label input{display:none}.radio-label span{padding:0.25rem 0.4rem}.radio-label:has(input:checked){background-color:var(--primary);color:#ffffff}.calc-history-drawer{background-color:var(--bg-tertiary);border-radius:var(--radius-md);border:1px solid var(--border-light);padding:0.75rem 1rem;display:flex;flex-direction:column;gap:0.6rem;max-height:160px;overflow-y:auto}.drawer-header{display:flex;justify-content:space-between;align-items:center}.drawer-title{font-size:0.8rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.5px}.text-btn{font-size:0.75rem;color:var(--primary);font-weight:600}.text-btn:hover{text-decoration:none;opacity:0.85}.history-list{display:flex;flex-direction:column;gap:0.4rem}.history-item{display:flex;justify-content:space-between;align-items:center;padding:0.4rem 0.6rem;background-color:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-sm);font-family:'JetBrains Mono',monospace;font-size:0.85rem;cursor:pointer;transition:border-color var(--transition-fast),background-color var(--transition-fast)}.history-item:hover{border-color:var(--primary);background-color:var(--primary-light)}.history-expr{color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:65%}.history-res{font-weight:700;color:var(--primary)}.empty-history-hint{font-size:0.8rem;color:var(--text-muted);text-align:center;padding:0.5rem 0;font-style:italic}.hero-info-card{display:flex;flex-direction:column;gap:1.25rem;padding:0.5rem 0}.hero-badge-tag{display:inline-flex;align-items:center;gap:0.5rem;background-color:var(--primary-light);color:var(--primary);font-size:0.85rem;font-weight:700;padding:0.35rem 0.85rem;border-radius:var(--radius-full);width:fit-content}.pulse-dot{width:8px;height:8px;background-color:#10b981;border-radius:50%;box-shadow:0 0 0 rgba(16,185,129,0.6);animation:pulseAnimation 2s infinite}@keyframes pulseAnimation{0%{box-shadow:0 0 0 0 rgba(16,185,129,0.7)}70%{box-shadow:0 0 0 8px rgba(16,185,129,0)}100%{box-shadow:0 0 0 0 rgba(16,185,129,0)}}.hero-title{font-size:2.5rem;font-weight:800;line-height:1.15;letter-spacing:-1px;color:var(--text-main)}.hero-subtitle{font-size:1.1rem;color:var(--text-muted);line-height:1.6}.search-form{position:relative;width:100%}.search-input-group{display:flex;gap:0.5rem;width:100%}.input-with-icon{flex:1;display:flex;align-items:center;gap:0.75rem;background-color:var(--bg-card);border:2px solid var(--border-light);border-radius:var(--radius-lg);padding:0.75rem 1.2rem;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input-with-icon:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-glow)}.input-with-icon svg{color:var(--text-muted);flex-shrink:0}.search-input{border:none;background:transparent;width:100%;font-size:1.05rem;color:var(--text-main);outline:none}.btn-primary{background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#ffffff;font-weight:700;font-size:0.98rem;padding:0.7rem 1.25rem;min-height:46px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(37,99,235,0.3);transition:transform var(--transition-fast),filter var(--transition-fast);cursor:pointer;touch-action:manipulation;text-align:center;white-space:normal}.btn-primary:hover{filter:brightness(1.1);transform:translateY(-1px)}.btn-primary:active{transform:translateY(1px)}.btn-block{width:100%;padding:0.75rem 1rem}.search-live-results{position:absolute;top:calc(100%+8px);left:0;right:0;background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);max-height:340px;overflow-y:auto;z-index:50;display:none}.search-result-row{display:flex;align-items:center;justify-content:space-between;padding:0.75rem 1.25rem;border-bottom:1px solid var(--border-light);cursor:pointer;transition:background-color var(--transition-fast)}.search-result-row:last-child{border-bottom:none}.search-result-row:hover{background-color:var(--bg-tertiary)}.search-res-title{font-weight:600;color:var(--text-main);font-size:0.95rem}.search-res-cat{font-size:0.75rem;padding:0.15rem 0.5rem;border-radius:var(--radius-full);background-color:var(--bg-tertiary);color:var(--text-muted)}.quick-pills-section{display:flex;flex-direction:column;gap:0.6rem}.pills-label{font-size:0.85rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.5px}.pills-container{display:flex;flex-wrap:wrap;gap:0.5rem}.pill-chip{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-full);padding:0.4rem 0.9rem;font-size:0.88rem;font-weight:600;color:var(--text-main);display:flex;align-items:center;gap:0.4rem;box-shadow:var(--shadow-sm);transition:all var(--transition-fast)}.pill-chip:hover{border-color:var(--primary);background-color:var(--primary-light);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-md)}.pill-icon{font-size:1rem}.feature-highlights{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-top:0.5rem}.feature-item{display:flex;align-items:flex-start;gap:0.75rem;background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:0.85rem 1rem}.feature-icon{font-size:1.4rem;line-height:1}.feature-item strong{display:block;font-size:0.9rem;color:var(--text-main);margin-bottom:0.15rem}.feature-item span{font-size:0.78rem;color:var(--text-muted);line-height:1.35;display:block}.calculator-categories-section{display:flex;flex-direction:column;gap:2rem}.section-header-wrap{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:1.25rem;border-bottom:1px solid var(--border-light);padding-bottom:1.25rem}.section-title{font-size:clamp(1.35rem,5vw,1.85rem);font-weight:800;letter-spacing:-0.5px;color:var(--text-main);word-break:break-word}.section-subtitle{font-size:0.95rem;color:var(--text-muted);margin-top:0.25rem}.category-filter-tabs{display:flex;background-color:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-full);padding:3px;gap:3px;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.category-filter-tabs::-webkit-scrollbar{display:none}.tab-btn{padding:0.45rem 0.9rem;border-radius:var(--radius-full);font-size:0.85rem;font-weight:600;color:var(--text-muted);transition:all var(--transition-fast);white-space:nowrap;flex-shrink:0}.tab-btn:hover{color:var(--text-main)}.tab-btn.active{background-color:var(--bg-card);color:var(--primary);box-shadow:var(--shadow-sm)}.categories-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}.category-card{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);padding:1.5rem;box-shadow:var(--shadow-md);display:flex;flex-direction:column;gap:1.2rem;transition:transform var(--transition-normal),box-shadow var(--transition-normal)}.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl);border-color:var(--primary-light)}.card-header{display:flex;align-items:center;gap:1rem}.card-icon-banner{width:52px;height:52px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;color:#ffffff;flex-shrink:0}.finance-banner{background:linear-gradient(135deg,#10b981 0%,#059669 100%);box-shadow:0 4px 12px rgba(16,185,129,0.3)}.fitness-banner{background:linear-gradient(135deg,#f43f5e 0%,#e11d48 100%);box-shadow:0 4px 12px rgba(244,63,94,0.3)}.math-banner{background:linear-gradient(135deg,#6366f1 0%,#4f46e5 100%);box-shadow:0 4px 12px rgba(99,102,241,0.3)}.other-banner{background:linear-gradient(135deg,#f59e0b 0%,#d97706 100%);box-shadow:0 4px 12px rgba(245,158,11,0.3)}.card-title-group .hh{font-size:1.25rem;font-weight:800;color:var(--text-main);line-height:1.2}.card-title-group .hh a{color:var(--text-main)}.card-title-group .hh a:hover{color:var(--primary);text-decoration:none}.count-tag{font-size:0.75rem;font-weight:600;color:var(--text-muted)}.card-description{font-size:0.88rem;color:var(--text-muted);line-height:1.5}.hl{list-style:none;display:flex;flex-direction:column;gap:0.4rem;max-height:480px;overflow-y:auto;padding-right:0.3rem}.hl::-webkit-scrollbar{width:4px}.hl::-webkit-scrollbar-thumb{background-color:var(--border-light);border-radius:4px}.hl li{display:flex;align-items:center;justify-content:space-between;padding:0.35rem 0.5rem;border-radius:var(--radius-sm);transition:background-color var(--transition-fast),padding-left var(--transition-fast)}.hl li:hover{background-color:var(--bg-tertiary);padding-left:0.75rem}.hl li a{font-size:0.92rem;font-weight:500;color:var(--text-main);text-decoration:none}.hl li a:hover{color:var(--primary)}.tool-badge-interactive{font-size:0.65rem;font-weight:700;text-transform:uppercase;background-color:var(--primary-light);color:var(--primary);padding:0.15rem 0.45rem;border-radius:var(--radius-full)}.sitemap-cta-wrap{text-align:center;padding-top:1rem}.all-calculators-btn{display:inline-flex;align-items:center;gap:0.75rem;background:var(--bg-card);border:2px solid var(--border-light);color:var(--text-main);font-weight:700;font-size:1.05rem;padding:0.9rem 2rem;border-radius:var(--radius-full);box-shadow:var(--shadow-md);transition:all var(--transition-normal);text-decoration:none}.all-calculators-btn:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-xl);transform:translateY(-2px);text-decoration:none}.modal-overlay{position:fixed;inset:0;background-color:rgba(0,0,0,0.65);backdrop-filter:blur(4px);z-index:200;display:none;align-items:center;justify-content:center;padding:1.25rem;opacity:0;transition:opacity 0.2s ease}.modal-overlay.active{display:flex;opacity:1}.modal-card{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);max-width:580px;width:100%;max-height:90vh;overflow-y:auto;transform:scale(0.95);transition:transform 0.2s ease;display:flex;flex-direction:column}.modal-overlay.active .modal-card{transform:scale(1)}.auth-modal{max-width:440px}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:1.25rem 1.5rem;border-bottom:1px solid var(--border-light)}.modal-title-wrap{display:flex;align-items:center;gap:0.6rem}.modal-icon{font-size:1.5rem}.modal-title-wrap h3{font-size:1.25rem;font-weight:800;color:var(--text-main)}.modal-close-btn{font-size:1.6rem;color:var(--text-muted);width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.modal-close-btn:hover{background-color:var(--bg-tertiary);color:var(--text-main)}.modal-body{padding:1.5rem;display:flex;flex-direction:column;gap:1.25rem}.tool-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:1rem;width:100%}@media (max-width:680px){.tool-grid-2{grid-template-columns:1fr;gap:0.85rem}}.form-group{display:flex;flex-direction:column;gap:0.4rem;min-width:0;width:100%}.form-group label{font-size:0.85rem;font-weight:600;color:var(--text-muted);word-break:break-word}.form-input{background-color:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:0.65rem 0.9rem;color:var(--text-main);outline:none;font-size:16px;min-height:46px;width:100%;box-sizing:border-box;transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow);background-color:var(--bg-secondary)}.tool-result-box{background:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:1.25rem;display:flex;flex-direction:column;gap:0.5rem}.tool-result-value{font-family:'JetBrains Mono',monospace;font-size:1.85rem;font-weight:800;color:#059669}.tool-result-desc{font-size:0.9rem;color:var(--text-muted);line-height:1.5}.auth-intro{font-size:0.95rem;color:var(--text-muted);line-height:1.5}.auth-note{margin-top:1rem;font-size:0.85rem;color:var(--text-muted);text-align:center}.toast-popup{position:fixed;bottom:2rem;right:2rem;background-color:var(--bg-screen);color:#ffffff;padding:0.75rem 1.25rem;border-radius:var(--radius-md);font-size:0.9rem;font-weight:600;box-shadow:var(--shadow-xl);z-index:999;transform:translateY(100px);opacity:0;transition:transform 0.25s ease,opacity 0.25s ease;pointer-events:none}.toast-popup.show{transform:translateY(0);opacity:1}#footer{background-color:var(--bg-secondary);border-top:1px solid var(--border-light);padding:3.5rem 1.25rem 2.5rem;margin-top:auto}.footer-inner{max-width:1280px;margin:0 auto;display:flex;flex-direction:column;gap:2rem}.footer-brand-section{display:flex;flex-direction:column;gap:1rem}.footer-mission{font-size:0.92rem;color:var(--text-muted);line-height:1.7;max-width:900px}.footer-disclaimer{padding-top:1rem;border-top:1px solid var(--border-light);font-size:0.85rem;color:var(--text-light);line-height:1.6}.footer-bottom-bar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;padding-top:1.5rem;border-top:1px solid var(--border-light)}.footer-links{display:flex;align-items:center;gap:0.75rem;font-size:0.88rem}.footer-links .divider{color:var(--border-light)}.copyright-notice{font-size:0.85rem;color:var(--text-muted)}.page-container{max-width:1280px;width:100%;margin:0 auto;padding:1.5rem 1.25rem 4rem;display:flex;flex-direction:column;gap:2rem;box-sizing:border-box}@media (max-width:680px){.page-container{padding:1rem 0.75rem 3rem;gap:1.25rem}}.breadcrumb-nav{display:flex;align-items:center;flex-wrap:wrap;gap:0.5rem;font-size:0.88rem;color:var(--text-muted);margin-bottom:0.5rem}.breadcrumb-nav a{color:var(--text-muted);display:inline-flex;align-items:center;gap:0.35rem;transition:color var(--transition-fast)}.breadcrumb-nav a:hover{color:var(--primary);text-decoration:none}.breadcrumb-nav .bc-divider{color:var(--border-light);font-size:0.8rem}.breadcrumb-nav .bc-current{color:var(--text-main);font-weight:600}.page-header-wrap{display:flex;flex-direction:column;gap:0.5rem;width:100%}.page-main-title{font-size:clamp(1.4rem,5.5vw,2.25rem);font-weight:800;letter-spacing:-0.6px;color:var(--text-main);line-height:1.25;word-break:break-word;overflow-wrap:break-word}.page-intro-text{font-size:1.05rem;color:var(--text-muted);line-height:1.6;max-width:850px}@media (max-width:680px){.page-intro-text{font-size:0.92rem;line-height:1.5}}.calc-page-grid{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:start;width:100%}@media (max-width:960px){.calc-page-grid{grid-template-columns:1fr;gap:1.5rem}}.dedicated-calc-card{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);padding:1.75rem;display:flex;flex-direction:column;gap:1.25rem;width:100%;box-sizing:border-box}.calc-card-title{font-size:1.25rem;font-weight:800;color:var(--text-main);display:flex;align-items:center;gap:0.6rem;word-break:break-word}.side-explainer-card{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);padding:1.75rem;display:flex;flex-direction:column;gap:1.25rem;width:100%;box-sizing:border-box}.calc-result-card{background-color:var(--bg-card);border:2px solid rgba(16,185,129,0.4);border-radius:var(--radius-xl);box-shadow:0 10px 25px -5px rgba(16,185,129,0.1),0 8px 10px -6px rgba(0,0,0,0.04);padding:1.6rem 1.75rem;display:flex;flex-direction:column;gap:1.1rem;position:relative;overflow:visible;transition:all var(--transition-normal);width:100%;box-sizing:border-box}[data-theme="dark"] .calc-result-card{border-color:rgba(16,185,129,0.45);box-shadow:0 10px 28px -5px rgba(16,185,129,0.18)}.result-corner-badge{position:absolute;top:-12px;left:1.5rem;background:linear-gradient(135deg,#10b981 0%,#059669 100%);color:#ffffff;font-size:0.72rem;font-weight:800;letter-spacing:0.8px;text-transform:uppercase;padding:0.22rem 0.85rem;border-radius:var(--radius-full);box-shadow:0 4px 12px rgba(16,185,129,0.45);display:inline-flex;align-items:center;gap:0.35rem;z-index:5}.result-corner-badge::before{content:"✓";font-weight:900;font-size:0.75rem}[data-theme="dark"] .result-corner-badge{background:linear-gradient(135deg,#10b981 0%,#047857 100%);box-shadow:0 4px 16px rgba(16,185,129,0.6)}.hero-result-display{display:flex;flex-direction:column;gap:0.35rem;padding:1.15rem 1.4rem;background:linear-gradient(135deg,rgba(16,185,129,0.08) 0%,rgba(5,150,105,0.1) 100%);border-radius:var(--radius-xl);border:1.5px solid rgba(16,185,129,0.32);box-shadow:0 4px 20px -3px rgba(16,185,129,0.18);position:relative;overflow:hidden;width:100%;box-sizing:border-box}[data-theme="dark"] .hero-result-display{background:linear-gradient(135deg,rgba(16,185,129,0.15) 0%,rgba(6,78,59,0.25) 100%);border-color:rgba(16,185,129,0.45);box-shadow:0 4px 24px -2px rgba(0,0,0,0.4)}.hero-result-label{font-size:0.78rem;font-weight:800;letter-spacing:0.8px;color:#059669;text-transform:uppercase;display:flex;align-items:center;gap:0.4rem}[data-theme="dark"] .hero-result-label{color:#34d399}.hero-result-value{font-family:'Outfit',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;font-size:clamp(1.35rem,5vw,1.95rem);font-weight:800;color:#059669;background:linear-gradient(135deg,#059669 0%,#10b981 50%,#047857 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;line-height:1.25;white-space:nowrap;letter-spacing:-0.3px;display:block;overflow:hidden;text-overflow:ellipsis}[data-theme="dark"] .hero-result-value{background:linear-gradient(135deg,#34d399 0%,#10b981 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.result-stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0.75rem;width:100%}@media (max-width:680px){.result-stats-grid{grid-template-columns:repeat(2,1fr);gap:0.5rem}}@media (max-width:360px){.result-stats-grid{grid-template-columns:1fr}}@media (max-width:680px){.dedicated-calc-card,.side-explainer-card{padding:1.2rem 1rem;border-radius:var(--radius-lg)}.calc-result-card{padding:1.35rem 1rem 1.15rem;border-radius:var(--radius-lg);margin-top:0.6rem}.result-corner-badge{left:1rem;top:-11px;font-size:0.68rem;padding:0.2rem 0.75rem}.hero-result-display{padding:0.85rem 1rem;border-radius:var(--radius-lg)}.hero-result-value{font-size:clamp(1.25rem,5.5vw,1.85rem)}}.result-stat-chip{background-color:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:0.65rem 0.8rem;display:flex;flex-direction:column;gap:0.25rem;min-width:0;box-sizing:border-box;transition:transform var(--transition-fast),border-color var(--transition-fast)}.result-stat-chip:hover{border-color:var(--primary);transform:translateY(-2px)}.stat-chip-label{font-size:0.72rem;color:var(--text-muted);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.stat-chip-val{font-size:0.92rem;color:var(--text-main);font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.side-card-title{font-size:1.15rem;font-weight:700;color:var(--text-main)}.calc-breakdown-bar{display:flex;height:10px;border-radius:var(--radius-full);overflow:hidden;margin:0.75rem 0 0.5rem 0;background-color:var(--bg-tertiary)}.calc-bar-segment{height:100%;transition:width var(--transition-normal)}.calc-bar-legend{display:flex;flex-wrap:wrap;gap:1rem;font-size:0.8rem;color:var(--text-muted);margin-top:0.25rem}.calc-bar-legend-item{display:flex;align-items:center;gap:0.4rem}.calc-legend-dot{width:9px;height:9px;border-radius:50%;display:inline-block}.bmi-spectrum-bar{display:flex;height:10px;border-radius:var(--radius-full);overflow:hidden;margin:0.75rem 0 0.35rem 0}.bmi-seg-under{background:#38bdf8;flex:18.5}.bmi-seg-normal{background:#10b981;flex:6.4}.bmi-seg-over{background:#f59e0b;flex:5.0}.bmi-seg-obese{background:#ef4444;flex:10.0}.bmi-spectrum-labels{display:flex;justify-content:space-between;font-size:0.75rem;color:var(--text-muted);font-weight:600}.seo-article-section{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);padding:2.5rem;display:flex;flex-direction:column;gap:2rem;line-height:1.7;width:100%;box-sizing:border-box}@media (max-width:680px){.seo-article-section{padding:1.25rem 1rem !important;border-radius:var(--radius-lg);gap:1.25rem}.seo-article-section h2{font-size:1.35rem}}.seo-article-section h2{font-size:1.65rem;font-weight:800;color:var(--text-main);letter-spacing:-0.4px;position:relative;padding-bottom:0.5rem;border-bottom:2px solid var(--border-light);word-break:break-word}.seo-article-section h3{font-size:1.25rem;font-weight:700;color:var(--text-main);margin-top:1rem;word-break:break-word}.seo-article-section p{color:var(--text-main);font-size:1rem;line-height:1.65}.seo-article-section ul,.seo-article-section ol{padding-left:1.5rem;display:flex;flex-direction:column;gap:0.5rem;color:var(--text-main)}.data-table-wrap{width:100%;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius-md);border:1px solid var(--border-light);margin:0.5rem 0}.seo-data-table{width:100%;min-width:480px;border-collapse:collapse;text-align:left;font-size:0.9rem}.seo-data-table th{background-color:var(--bg-tertiary);padding:0.75rem 1rem;font-weight:700;color:var(--text-main);border-bottom:2px solid var(--border-light);white-space:nowrap}.seo-data-table td{padding:0.75rem 1rem;border-bottom:1px solid var(--border-light);color:var(--text-main);white-space:nowrap}.seo-data-table tr:hover td{background-color:var(--bg-tertiary)}.faq-grid{display:flex;flex-direction:column;gap:1rem;width:100%}.faq-card{background-color:var(--bg-tertiary);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:1.25rem;width:100%;box-sizing:border-box}.faq-question{font-size:1.05rem;font-weight:700;color:var(--text-main);margin-bottom:0.5rem;display:flex;align-items:center;gap:0.5rem;word-break:break-word}.faq-answer{font-size:0.92rem;color:var(--text-muted);line-height:1.6}.related-section{display:flex;flex-direction:column;gap:1.25rem;width:100%}.related-title{font-size:1.4rem;font-weight:800;color:var(--text-main);word-break:break-word}.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem;width:100%}@media (max-width:600px){.related-grid{grid-template-columns:1fr}}.related-card{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:1.25rem;text-decoration:none;display:flex;flex-direction:column;gap:0.5rem;transition:all var(--transition-normal);width:100%;box-sizing:border-box}.related-card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:var(--shadow-md);text-decoration:none}.related-card-header{display:flex;align-items:center;justify-content:space-between}.related-card-title{font-size:1rem;font-weight:700;color:var(--text-main);display:flex;align-items:center;gap:0.5rem}.related-card:hover .related-card-title{color:var(--primary)}.related-card-desc{font-size:0.82rem;color:var(--text-muted);line-height:1.5}.hub-categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem;width:100%}@media (max-width:600px){.hub-categories-grid{grid-template-columns:1fr;gap:1rem}.hub-card{padding:1.15rem 1rem;border-radius:var(--radius-lg)}}.hub-card{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);padding:1.5rem;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:1rem;width:100%;box-sizing:border-box}.sitemap-columns{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:2rem;width:100%}@media (max-width:600px){.sitemap-columns{grid-template-columns:1fr;gap:1rem}.sitemap-group{padding:1.15rem 1rem;border-radius:var(--radius-lg)}}.sitemap-group{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:1.5rem;width:100%;box-sizing:border-box}.sitemap-group-title{font-size:1.15rem;font-weight:800;color:var(--text-main);margin-bottom:1rem;padding-bottom:0.5rem;border-bottom:2px solid var(--primary);display:flex;align-items:center;gap:0.5rem}.sitemap-links-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:0.45rem}.sitemap-links-list li a{font-size:0.9rem;color:var(--text-main);display:inline-flex;align-items:center;gap:0.4rem;transition:all var(--transition-fast)}.sitemap-links-list li a:hover{color:var(--primary);padding-left:0.4rem}@media (max-width:680px){.footer-bottom-bar{flex-direction:column;align-items:center;text-align:center;gap:0.75rem}.footer-links{flex-wrap:wrap;justify-content:center;gap:0.5rem}}.tool-badge-live{display:inline-flex;align-items:center;gap:0.25rem;font-size:0.65rem;font-weight:800;text-transform:uppercase;letter-spacing:0.4px;background:linear-gradient(135deg,#10b981 0%,#059669 100%);color:#ffffff;padding:0.2rem 0.55rem;border-radius:var(--radius-full);box-shadow:0 2px 6px rgba(16,185,129,0.35);animation:liveBadgeGlow 2.5s infinite;white-space:nowrap}@keyframes liveBadgeGlow{0%{box-shadow:0 0 0 0 rgba(16,185,129,0.5)}70%{box-shadow:0 0 0 6px rgba(16,185,129,0)}100%{box-shadow:0 0 0 0 rgba(16,185,129,0)}}.hl-section-heading{font-size:0.72rem;font-weight:800;text-transform:uppercase;letter-spacing:0.6px;color:var(--primary);padding:0.4rem 0.5rem 0.2rem 0.5rem;margin-top:0.25rem;border-bottom:1px dashed var(--border-light);display:flex;align-items:center;justify-content:space-between}.hl-section-heading.secondary{color:var(--text-muted);margin-top:0.6rem}.hl li.hl-live-item{background-color:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-md);margin-bottom:0.35rem;padding:0.5rem 0.75rem;border-left:3px solid #10b981}.hl li.hl-live-item:hover{background-color:var(--primary-light);border-color:var(--primary);transform:translateX(2px)}.hl li.hl-live-item a{font-weight:700;color:var(--text-main);display:flex;align-items:center;gap:0.4rem}.geo-article-section{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);padding:2.5rem 2rem;margin:3rem 0 1.5rem 0;box-shadow:var(--shadow-md)}.geo-header{margin-bottom:2rem;border-bottom:1px solid var(--border-light);padding-bottom:1.5rem}.geo-pill{display:inline-flex;align-items:center;gap:0.4rem;background-color:var(--primary-light);color:var(--primary);font-size:0.8rem;font-weight:800;text-transform:uppercase;padding:0.3rem 0.8rem;border-radius:var(--radius-full);margin-bottom:0.75rem}.geo-title{font-size:clamp(1.5rem,3.5vw,2.15rem);font-weight:800;letter-spacing:-0.5px;color:var(--text-main);line-height:1.25;margin-bottom:0.75rem}.geo-lead{font-size:1.05rem;color:var(--text-muted);line-height:1.65;max-width:900px}.geo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin:2rem 0}.geo-card{background-color:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:1.5rem;display:flex;flex-direction:column;gap:0.75rem;transition:transform var(--transition-fast),border-color var(--transition-fast)}.geo-card:hover{border-color:var(--primary);transform:translateY(-2px)}.geo-card-header{display:flex;align-items:center;gap:0.75rem}.geo-card-icon{width:40px;height:40px;border-radius:var(--radius-md);background-color:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:1.25rem;flex-shrink:0}.geo-card h3{font-size:1.15rem;font-weight:800;color:var(--text-main)}.geo-card p{font-size:0.92rem;color:var(--text-muted);line-height:1.55}.geo-card .geo-keywords{font-size:0.78rem;color:var(--text-light);background-color:var(--bg-tertiary);padding:0.4rem 0.6rem;border-radius:var(--radius-sm);font-family:'JetBrains Mono',monospace;margin-top:auto}.geo-table-wrap{overflow-x:auto;margin:2rem 0;border-radius:var(--radius-lg);border:1px solid var(--border-light);box-shadow:var(--shadow-sm)}.geo-table{width:100%;border-collapse:collapse;text-align:left;font-size:0.9rem}.geo-table th{background-color:var(--bg-tertiary);color:var(--text-main);font-weight:800;padding:0.85rem 1.15rem;border-bottom:1px solid var(--border-light);white-space:nowrap}.geo-table td{padding:0.85rem 1.15rem;border-bottom:1px solid var(--border-light);color:var(--text-muted);vertical-align:middle}.geo-table tr:last-child td{border-bottom:none}.geo-table tr:hover td{background-color:var(--bg-tertiary)}.geo-table td strong{color:var(--text-main)}.geo-table code{font-family:'JetBrains Mono',monospace;font-size:0.82rem;background-color:var(--bg-tertiary);padding:0.15rem 0.4rem;border-radius:4px;color:var(--primary)}.faq-section-wrap{margin-top:2.5rem;padding-top:2rem;border-top:1px solid var(--border-light)}.faq-title{font-size:1.45rem;font-weight:800;color:var(--text-main);margin-bottom:1.25rem;display:flex;align-items:center;gap:0.5rem}.faq-container{display:flex;flex-direction:column;gap:0.75rem}.faq-item{background-color:var(--bg-primary);border:1px solid var(--border-light);border-radius:var(--radius-md);overflow:hidden;transition:border-color var(--transition-fast)}.faq-item:hover{border-color:var(--primary)}.faq-question{width:100%;text-align:left;padding:1.1rem 1.25rem;font-size:1rem;font-weight:700;color:var(--text-main);background:none;display:flex;justify-content:space-between;align-items:center;cursor:pointer;gap:1rem}.faq-chevron{width:20px;height:20px;color:var(--primary);transition:transform var(--transition-normal);flex-shrink:0}.faq-item.open .faq-chevron{transform:rotate(180deg)}.faq-answer{padding:0 1.25rem 1.2rem 1.25rem;font-size:0.92rem;color:var(--text-muted);line-height:1.6;display:none}.faq-item.open .faq-answer{display:block}.seo-article-section{background-color:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-xl);padding:2.25rem 2rem;margin:2.5rem 0 1.5rem 0;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:1.5rem}.seo-article-section h2{font-size:1.5rem;font-weight:800;color:var(--text-main);letter-spacing:-0.3px;margin-top:1rem;padding-bottom:0.5rem;border-bottom:1px solid var(--border-light)}.seo-article-section h3{font-size:1.2rem;font-weight:700;color:var(--text-main);margin-top:0.75rem}.seo-article-section p{font-size:0.95rem;line-height:1.7;color:var(--text-muted)}.seo-article-section strong{color:var(--text-main)}.seo-article-section ul,.seo-article-section ol{padding-left:1.5rem;display:flex;flex-direction:column;gap:0.5rem;color:var(--text-muted);font-size:0.95rem}.formula-card{background:var(--bg-tertiary);border:1px solid var(--border-light);border-left:4px solid var(--primary);border-radius:var(--radius-md);padding:1.25rem 1.5rem;margin:0.5rem 0}.formula-card code{font-family:'JetBrains Mono',monospace;font-size:1rem;color:var(--primary);font-weight:700;display:block;margin-bottom:0.5rem}.worked-example-box{background:#f0fdf4;border:1px solid #bbf7d0;border-left:4px solid #10b981;border-radius:var(--radius-md);padding:1.25rem 1.5rem;margin:0.75rem 0}[data-theme="dark"] .worked-example-box{background:#062b1b;border-color:#065f46}.pitfall-box{background:#fef2f2;border:1px solid #fecaca;border-left:4px solid #ef4444;border-radius:var(--radius-md);padding:1.25rem 1.5rem;margin:0.75rem 0}[data-theme="dark"] .pitfall-box{background:#360f14;border-color:#7f1d1d}.disclaimer-note{font-size:0.85rem;color:var(--text-light);background:var(--bg-tertiary);border-radius:var(--radius-sm);padding:0.75rem 1rem;border:1px dashed var(--border-light);margin-top:1rem;font-style:italic}.data-table-wrap{overflow-x:auto;border:1px solid var(--border-light);border-radius:var(--radius-lg);margin:1rem 0}.seo-data-table{width:100%;border-collapse:collapse;text-align:left;font-size:0.9rem}.seo-data-table th{background:var(--bg-tertiary);color:var(--text-main);font-weight:700;padding:0.85rem 1.15rem;border-bottom:1px solid var(--border-light)}.seo-data-table td{padding:0.85rem 1.15rem;border-bottom:1px solid var(--border-light);color:var(--text-muted)}.seo-data-table tr:last-child td{border-bottom:none}.seo-data-table tr:hover td{background:var(--bg-tertiary)}