*{box-sizing:border-box;margin:0;padding:0}:root{--bg-primary: #f9fafb;--bg-secondary: #ffffff;--bg-tertiary: #f3f4f6;--bg-hover: #eff6ff;--text-primary: #111827;--text-secondary: #374151;--text-muted: #6b7280;--text-light: #9ca3af;--border-primary: #e5e7eb;--border-secondary: #d1d5db;--accent-primary: #2563eb;--accent-secondary: #1d4ed8;--accent-light: #dbeafe;--success: #16a34a;--warning: #d97706;--error: #ef4444}[data-theme=dark]{--bg-primary: #111827;--bg-secondary: #1f2937;--bg-tertiary: #374151;--bg-hover: #374151;--text-primary: #f9fafb;--text-secondary: #d1d5db;--text-muted: #9ca3af;--text-light: #6b7280;--border-primary: #374151;--border-secondary: #4b5563;--accent-primary: #60a5fa;--accent-secondary: #3b82f6;--accent-light: #1e40af;--success: #34d399;--warning: #fbbf24;--error: #f87171}html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%}body,input,select,button,textarea{font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Noto Sans SC,Source Han Sans SC,WenQuanYi Micro Hei,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}body{background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-variant-numeric:tabular-nums;transition:background-color .3s ease,color .3s ease}.container{max-width:1280px;margin:0 auto;padding:0 12px}@media (min-width: 480px){.container{padding:0 16px}}@media (min-width: 640px){.container{padding:0 24px}}@media (min-width: 1024px){.container{padding:0 32px}}#site-header{position:sticky;top:0;z-index:100;background-color:#ffffffeb;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border-primary);transition:box-shadow .3s ease}[data-theme=dark] #site-header{background-color:#1f2937eb}#site-header.scrolled{box-shadow:0 1px 12px #00000014}.header-inner{display:flex;align-items:center;justify-content:space-between;height:56px}@media (min-width: 640px){.header-inner{height:64px}}.logo{display:flex;align-items:center;gap:8px;cursor:pointer;transition:opacity .2s;flex-shrink:0}.logo:hover{opacity:.8}.logo-icon{width:32px;height:32px;flex-shrink:0}@media (min-width: 640px){.logo-icon{width:36px;height:36px}}.logo-text{font-size:1.1rem;font-weight:700;color:var(--text-primary);letter-spacing:-.02em;white-space:nowrap}@media (min-width: 640px){.logo-text{font-size:1.25rem}}.logo-accent{color:#2563eb}.desktop-nav{display:none;align-items:center;gap:4px}@media (min-width: 768px){.desktop-nav{display:flex}}.nav-link{padding:6px 12px;font-size:.875rem;font-weight:500;color:var(--text-muted);cursor:pointer;border-radius:.5rem;transition:color .2s,background-color .2s;white-space:nowrap;text-decoration:none;-webkit-user-select:none;user-select:none}.theme-toggle{display:flex;align-items:center;justify-content:center;width:36px;height:36px;padding:6px;border:none;background:none;border-radius:.5rem;cursor:pointer;color:var(--text-muted);transition:color .2s,background-color .2s;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.theme-toggle:hover{color:var(--accent-primary);background-color:var(--bg-hover)}.theme-icon{width:18px;height:18px;transition:opacity .3s ease}.theme-toggle .dark-icon,[data-theme=dark] .theme-toggle .light-icon{opacity:0;position:absolute}.theme-toggle .light-icon,[data-theme=dark] .theme-toggle .dark-icon{opacity:1}.mobile-theme-toggle{display:flex;align-items:center;justify-content:center;width:100%;padding:12px 20px;margin:0;border:none;background:none;font-size:.95rem;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:background-color .15s,color .15s;text-align:left;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.mobile-theme-toggle:hover{background-color:var(--bg-hover);color:var(--accent-primary)}[data-theme=dark] .mobile-theme-toggle .theme-icon-text:before{content:"☀️ "}[data-theme=dark] .mobile-theme-toggle .theme-icon-text{content:"浅色模式"}[data-theme=dark] .mobile-theme-toggle .theme-icon-text:after{content:"浅色模式"}.mobile-theme-toggle .theme-icon-text:before{content:"🌙 "}.nav-link:hover{color:var(--accent-primary);background-color:var(--bg-hover)}.nav-link.active{color:var(--accent-primary);background-color:var(--accent-light)}.mobile-menu-btn{display:flex;flex-direction:column;justify-content:center;align-items:center;width:40px;height:40px;border:none;background:none;cursor:pointer;padding:8px;border-radius:.5rem;transition:background-color .2s;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.mobile-menu-btn:hover{background-color:var(--bg-tertiary)}@media (min-width: 768px){.mobile-menu-btn{display:none}}.hamburger-line{display:block;width:20px;height:2px;background-color:var(--text-secondary);border-radius:1px;transition:transform .3s ease,opacity .3s ease}.hamburger-line+.hamburger-line{margin-top:5px}.mobile-menu-btn.open .hamburger-line:nth-child(1){transform:translateY(7px) rotate(45deg)}.mobile-menu-btn.open .hamburger-line:nth-child(2){opacity:0}.mobile-menu-btn.open .hamburger-line:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.mobile-nav{display:none;position:absolute;top:100%;left:0;right:0;background-color:var(--bg-secondary);border-bottom:1px solid var(--border-primary);box-shadow:0 8px 24px #0000001a;max-height:0;overflow:hidden;transition:max-height .35s ease,opacity .25s ease;opacity:0;z-index:99}.mobile-nav.open{display:block;max-height:80vh;opacity:1;overflow-y:auto;-webkit-overflow-scrolling:touch}.mobile-nav-inner{padding:8px 0}.mobile-nav-link{display:block;padding:12px 20px;font-size:.95rem;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:background-color .15s,color .15s;text-decoration:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.mobile-nav-link:hover{background-color:var(--bg-hover);color:var(--accent-primary)}.mobile-nav-link:active{background-color:var(--accent-light)}.mobile-nav-divider{height:1px;background-color:var(--border-primary);margin:6px 16px}main{padding:16px 0}@media (min-width: 640px){main{padding:24px 0}}section{margin-bottom:32px}@media (min-width: 640px){section{margin-bottom:40px}}.hero{text-align:center;margin-bottom:28px}@media (min-width: 640px){.hero{margin-bottom:40px}}.hero h1{font-size:1.5rem;font-weight:700;margin-bottom:8px;color:var(--text-primary)}@media (min-width: 480px){.hero h1{font-size:2rem}}@media (min-width: 640px){.hero h1{font-size:2.5rem;margin-bottom:12px}}@media (min-width: 1024px){.hero h1{font-size:3rem}}.hero p{font-size:.95rem;color:var(--text-muted);max-width:640px;margin:0 auto;padding:0 8px}@media (min-width: 640px){.hero p{font-size:1.125rem;padding:0}}.search-container{max-width:480px;margin:16px auto 0}@media (min-width: 640px){.search-container{margin:24px auto 0}}.search-box{display:flex;gap:8px}.search-box input{flex:1;padding:10px 14px;font-size:16px;border:1px solid var(--border-secondary);border-radius:.5rem;outline:none;transition:border-color .2s,box-shadow .2s;min-width:0;background-color:var(--bg-secondary);color:var(--text-primary)}@media (min-width: 640px){.search-box input{padding:12px 16px;font-size:1rem}}.search-box input:focus{border-color:#2563eb;box-shadow:0 0 0 3px #2563eb33}.search-box input.error{border-color:#ef4444}.search-box input.error:focus{border-color:#ef4444;box-shadow:0 0 0 3px #ef444433}.search-box button{padding:10px 18px;font-size:1rem;font-weight:500;color:#fff;background-color:#2563eb;border:none;border-radius:.5rem;cursor:pointer;transition:background-color .2s;white-space:nowrap;flex-shrink:0}@media (min-width: 640px){.search-box button{padding:12px 24px}}.search-box button:hover{background-color:#1d4ed8}.search-error{margin-top:8px;font-size:.875rem;color:#ef4444}.search-result{margin-top:12px;padding:14px;background-color:var(--bg-secondary);border-radius:.75rem;box-shadow:0 1px 3px #00000014;display:none}@media (min-width: 640px){.search-result{margin-top:16px;padding:16px}}.search-result .result-value{font-size:1.1rem;font-weight:600;color:var(--text-primary);margin-bottom:4px;word-break:break-word}@media (min-width: 640px){.search-result .result-value{font-size:1.25rem}}.search-result .result-info{font-size:.8rem;color:var(--text-muted);margin-bottom:10px}@media (min-width: 640px){.search-result .result-info{font-size:.875rem;margin-bottom:12px}}.search-result .result-button{padding:6px 12px;font-size:.8rem;color:#fff;background-color:var(--accent-primary);border:none;border-radius:.375rem;cursor:pointer;transition:background-color .2s}@media (min-width: 640px){.search-result .result-button{font-size:.875rem}}.search-result .result-button:hover{background-color:#1d4ed8}.search-result .result-error{color:var(--error);font-size:.875rem}.search-hint{margin-top:8px;font-size:.7rem;color:var(--text-light);padding:0 4px}@media (min-width: 640px){.search-hint{font-size:.75rem;padding:0}}.category-group{margin-bottom:24px}.category-group-title{font-size:1.1rem;font-weight:700;color:#1e40af;margin-bottom:12px;padding-bottom:6px;border-bottom:2px solid #dbeafe}@media (min-width: 640px){.category-group-title{font-size:1.2rem;margin-bottom:14px}}.nav-dropdown{position:relative;display:inline-block}.nav-dropdown-toggle{cursor:pointer}.nav-dropdown-menu{display:none;position:absolute;top:100%;right:0;background:#fff;border-radius:8px;box-shadow:0 10px 40px #00000026;padding:8px 0;min-width:200px;max-height:80vh;overflow-y:auto;z-index:1000;border:1px solid #e5e7eb}.nav-dropdown:hover .nav-dropdown-menu,.nav-dropdown.active .nav-dropdown-menu{display:block}.nav-dropdown-group{padding:4px 0}.nav-dropdown-group+.nav-dropdown-group{border-top:1px solid #f3f4f6}.nav-dropdown-group-title{font-size:.75rem;font-weight:700;color:#6b7280;padding:6px 16px 2px;text-transform:uppercase;letter-spacing:.05em}.nav-dropdown-item{display:block;padding:6px 16px;font-size:.85rem;color:#374151;text-decoration:none;cursor:pointer;transition:background .15s;white-space:nowrap}.nav-dropdown-item:hover{background:#eff6ff;color:#1d4ed8}.mobile-nav-group-title{font-size:.8rem;font-weight:700;color:#6b7280;padding:8px 20px 4px;letter-spacing:.03em}.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}@media (min-width: 480px){.category-grid{gap:12px}}@media (min-width: 640px){.category-grid{gap:16px}}@media (min-width: 768px){.category-grid{grid-template-columns:repeat(3,1fr)}}@media (min-width: 1024px){.category-grid{grid-template-columns:repeat(4,1fr)}}.category-card{display:flex;align-items:center;gap:10px;padding:12px 14px;background-color:var(--bg-secondary);border-radius:.75rem;box-shadow:0 1px 2px #0000000d;cursor:pointer;transition:all .2s;touch-action:manipulation;-webkit-tap-highlight-color:transparent}@media (min-width: 640px){.category-card{padding:16px;gap:12px;border-radius:1rem}}.category-card:active{transform:scale(.98)}.category-card:hover{box-shadow:0 4px 6px #0000001a;transform:translateY(-2px)}.category-icon{font-size:1.5rem;flex-shrink:0}@media (min-width: 640px){.category-icon{font-size:2rem}}.category-info h3{font-size:.85rem;font-weight:600;color:var(--text-primary);transition:color .2s}@media (min-width: 640px){.category-info h3{font-size:.95rem}}.category-card:hover .category-info h3{color:#2563eb}.category-info p{font-size:.75rem;color:var(--text-muted)}@media (min-width: 640px){.category-info p{font-size:.875rem}}.section-title{font-size:1.2rem;font-weight:600;margin-bottom:16px;color:var(--text-primary)}@media (min-width: 640px){.section-title{font-size:1.5rem;margin-bottom:24px}}.info-card{background-color:var(--bg-secondary);border-radius:1rem;padding:16px;box-shadow:0 1px 2px #0000000d}@media (min-width: 640px){.info-card{padding:24px}}.info-card h2{font-size:1.1rem;font-weight:600;margin-bottom:10px}@media (min-width: 640px){.info-card h2{font-size:1.25rem;margin-bottom:12px}}.info-card p{color:var(--text-muted);font-size:.875rem;line-height:1.75}@media (min-width: 640px){.info-card p{font-size:1rem}}.converter-widget{background-color:var(--bg-secondary);border-radius:1rem;padding:16px 14px;box-shadow:0 1px 3px #00000014}@media (min-width: 480px){.converter-widget{padding:20px 18px;border-radius:1.125rem}}@media (min-width: 640px){.converter-widget{padding:24px;border-radius:1.25rem}}.converter-row{display:flex;flex-direction:column;gap:12px}@media (min-width: 768px){.converter-row{flex-direction:row;align-items:flex-end;gap:16px}}.converter-column{flex:1;min-width:0}.converter-label{display:block;font-size:.8rem;font-weight:500;color:var(--text-muted);margin-bottom:4px}@media (min-width: 640px){.converter-label{font-size:.875rem}}.converter-input{width:100%;padding:12px 14px;font-size:1.1rem;font-weight:600;border:1px solid var(--border-secondary);border-radius:.5rem;outline:none;transition:border-color .2s,box-shadow .2s;-webkit-appearance:none;background-color:var(--bg-primary);color:var(--text-primary)}@media (min-width: 480px){.converter-input{padding:12px 16px;font-size:1.25rem}}@media (min-width: 640px){.converter-input{font-size:1.5rem}}.converter-input:focus{border-color:#2563eb;box-shadow:0 0 0 3px #2563eb33}.converter-input.readonly{background-color:var(--bg-tertiary);border-color:var(--border-primary);color:var(--text-secondary)}.converter-select{width:100%;margin-top:6px;padding:10px 36px 10px 12px;font-size:.9rem;border:1px solid var(--border-primary);border-radius:.5rem;background-color:var(--bg-primary);outline:none;transition:border-color .2s,box-shadow .2s;-webkit-appearance:none;-moz-appearance:none;appearance:none;cursor:pointer;color:var(--text-primary);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8.825L1.175 4 2.238 2.938 6 6.7 9.763 2.938 10.825 4 6 8.825z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center}@media (min-width: 640px){.converter-select{font-size:1rem;padding:8px 36px 8px 12px;margin-top:8px}}.converter-select:focus{border-color:#2563eb;box-shadow:0 0 0 3px #2563eb33}.swap-button{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background-color:#dbeafe;color:#2563eb;font-size:1.1rem;cursor:pointer;transition:background-color .2s,transform .1s;margin:4px auto;touch-action:manipulation;-webkit-tap-highlight-color:transparent;flex-shrink:0}@media (min-width: 768px){.swap-button{width:48px;height:48px;font-size:1.25rem;margin:0}}.swap-button:active{transform:scale(.95)}.swap-button:hover{background-color:#bfdbfe}.slider-section{margin-top:16px;padding:12px 16px;background-color:var(--bg-tertiary);border-radius:.75rem;border:1px solid var(--border-primary)}@media (min-width: 640px){.slider-section{margin-top:20px;padding:14px 20px}}.slider-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.slider-label{font-size:.75rem;color:var(--text-muted);font-weight:500}@media (min-width: 640px){.slider-label{font-size:.8rem}}.slider-value{font-size:.8rem;font-weight:600;color:#2563eb;font-variant-numeric:tabular-nums;min-width:40px;text-align:right}@media (min-width: 640px){.slider-value{font-size:.875rem}}.slider-input{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:6px;border-radius:3px;background:linear-gradient(to right,#2563eb 0%,#2563eb var(--slider-pct, 50%),#e2e8f0 var(--slider-pct, 50%),#e2e8f0 100%);outline:none;cursor:pointer;transition:opacity .15s}.slider-input:hover{opacity:.9}.slider-input::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:#fff;border:3px solid #2563eb;cursor:pointer;box-shadow:0 1px 4px #00000026;transition:transform .15s,box-shadow .15s}.slider-input::-webkit-slider-thumb:hover{transform:scale(1.15);box-shadow:0 2px 8px #2563eb4d}.slider-input::-webkit-slider-thumb:active{transform:scale(1.05);box-shadow:0 1px 4px #2563eb66}.slider-input::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:#fff;border:3px solid #2563eb;cursor:pointer;box-shadow:0 1px 4px #00000026}.slider-input::-moz-range-track{height:6px;border-radius:3px;background:#e2e8f0}.slider-input::-moz-range-progress{height:6px;border-radius:3px;background:#2563eb}.slider-range{display:flex;justify-content:space-between;margin-top:4px;font-size:.65rem;color:var(--text-light);font-variant-numeric:tabular-nums}@media (min-width: 640px){.slider-range{font-size:.7rem}}.recommend-section{margin-top:16px;background-color:var(--bg-secondary);border-radius:1rem;padding:16px;box-shadow:0 1px 2px #0000000d}@media (min-width: 640px){.recommend-section{margin-top:20px;padding:20px}}.recommend-title{font-size:.95rem;font-weight:600;color:var(--text-primary);margin:0 0 10px}@media (min-width: 640px){.recommend-title{font-size:1.05rem;margin-bottom:12px}}.recommend-same-list{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.recommend-same-item{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background-color:#22c55e14;border:1px solid rgba(34,197,94,.2);border-radius:.5rem;cursor:pointer;transition:background-color .15s}.recommend-same-item:hover{background-color:#22c55e26}.recommend-same-pair{font-size:.85rem;font-weight:500;color:var(--success)}.recommend-same-tag{font-size:.7rem;color:var(--success);background:#22c55e26;padding:2px 8px;border-radius:9999px}.recommend-related-title{font-size:.85rem;font-weight:600;color:var(--text-muted);margin-bottom:8px}.recommend-related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}@media (min-width: 640px){.recommend-related-grid{grid-template-columns:repeat(4,1fr)}}.recommend-related-card{display:flex;align-items:center;gap:8px;padding:8px 10px;background-color:#3b82f614;border:1px solid rgba(59,130,246,.2);border-radius:.5rem;cursor:pointer;transition:background-color .15s}.recommend-related-card:hover{background-color:#3b82f626}.recommend-related-icon{font-size:1.2rem;flex-shrink:0}.recommend-related-info{min-width:0}.recommend-related-label{font-size:.8rem;font-weight:500;color:var(--accent-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.recommend-related-cat{font-size:.65rem;color:#3b82f6}.home-recommend-section{margin-bottom:24px}.home-recommend-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}@media (min-width: 480px){.home-recommend-grid{grid-template-columns:repeat(3,1fr)}}@media (min-width: 640px){.home-recommend-grid{grid-template-columns:repeat(3,1fr);gap:12px}}@media (min-width: 768px){.home-recommend-grid{grid-template-columns:repeat(6,1fr)}}.home-recommend-card{display:flex;align-items:center;gap:8px;padding:10px 12px;background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:.75rem;cursor:pointer;transition:all .2s}.home-recommend-card:hover{border-color:var(--accent-primary);background:var(--accent-light);transform:translateY(-1px);box-shadow:0 2px 6px #2563eb1a}.home-recommend-icon{font-size:1.3rem;flex-shrink:0}.home-recommend-info{min-width:0}.home-recommend-label{font-size:.8rem;font-weight:600;color:var(--accent-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.home-recommend-tag{font-size:.65rem;color:var(--text-muted);margin-top:1px}.all-results-section{margin-top:16px;padding-top:16px;border-top:1px solid var(--border-primary)}.all-results-title{font-size:.9rem;font-weight:600;color:var(--text-secondary);margin-bottom:10px}@media (min-width: 640px){.all-results-title{font-size:1rem;margin-bottom:12px}}.all-results-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}@media (min-width: 480px){.all-results-grid{grid-template-columns:repeat(3,1fr)}}@media (min-width: 640px){.all-results-grid{grid-template-columns:repeat(3,1fr);gap:10px}}@media (min-width: 768px){.all-results-grid{grid-template-columns:repeat(4,1fr)}}@media (min-width: 1024px){.all-results-grid{grid-template-columns:repeat(5,1fr)}}.all-result-card{background-color:var(--bg-tertiary);border:1px solid var(--border-primary);border-radius:.5rem;padding:10px 8px;text-align:center;cursor:pointer;transition:all .2s}.all-result-card:hover{background-color:var(--accent-light);border-color:var(--accent-primary);transform:translateY(-1px);box-shadow:0 2px 6px #2563eb1a}.all-result-value{font-size:.95rem;font-weight:700;color:var(--accent-primary);word-break:break-all;line-height:1.3}@media (min-width: 640px){.all-result-value{font-size:1.05rem}}.all-result-unit{font-size:.75rem;color:var(--text-secondary);margin-top:3px;font-weight:500}.all-result-unit-en{font-size:.65rem;color:var(--text-light);margin-top:1px}.all-results-empty{grid-column:1 / -1;text-align:center;color:var(--text-light);font-size:.85rem;padding:16px 0}.converter-result{margin-top:14px;padding-top:14px;border-top:1px solid #e5e7eb}@media (min-width: 640px){.converter-result{margin-top:16px;padding-top:16px}}.result-info{font-size:.8rem;color:#6b7280;word-break:break-word;margin-bottom:8px}.result-actions{display:flex;gap:8px;flex-wrap:wrap}.favorite-btn{padding:6px 14px;border-radius:.375rem;font-size:.8rem;font-weight:500;cursor:pointer;border:1px solid var(--border-secondary);background:var(--bg-secondary);color:var(--text-secondary);transition:all .2s}.favorite-btn:hover{border-color:var(--warning);color:var(--warning);background:#fbbf241a}.favorite-btn.favorited{background:#fbbf2426;border-color:var(--warning);color:var(--warning);font-weight:600}@media (min-width: 640px){.result-info{font-size:.875rem}}.copy-button{padding:6px 12px;font-size:.8rem;color:var(--text-muted);background-color:var(--bg-tertiary);border:none;border-radius:.5rem;cursor:pointer;transition:background-color .2s;flex-shrink:0}@media (min-width: 640px){.copy-button{font-size:.875rem}}.copy-button:hover{background-color:var(--border-secondary)}.breadcrumbs{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-bottom:16px;padding:10px 16px;background-color:var(--bg-secondary);border-radius:.625rem;box-shadow:0 1px 2px #0000000a;font-size:.8rem}@media (min-width: 640px){.breadcrumbs{font-size:.875rem;margin-bottom:20px;padding:12px 20px;border-radius:.75rem}}.breadcrumb-item{display:inline-flex;align-items:center;color:var(--text-muted);cursor:pointer;transition:color .2s,background-color .2s;padding:2px 8px;border-radius:.25rem;text-decoration:none;white-space:nowrap;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.breadcrumb-item:hover{color:var(--accent-primary);background-color:var(--accent-light)}.breadcrumb-item:active{background-color:var(--accent-primary)}.breadcrumb-item.current{color:var(--text-primary);font-weight:600;cursor:default;pointer-events:none}.breadcrumb-item.current:hover{color:var(--text-primary);background-color:transparent}.breadcrumb-separator{display:inline-flex;align-items:center;justify-content:center;color:var(--border-secondary);margin:0 2px;font-size:.7rem;flex-shrink:0}@media (min-width: 640px){.breadcrumb-separator{margin:0 4px;font-size:.75rem}}.breadcrumb-home-icon{font-size:.9rem;margin-right:3px}@media (min-width: 640px){.breadcrumb-home-icon{font-size:1rem;margin-right:4px}}.page-title{font-size:1.4rem;font-weight:700;margin-bottom:6px;word-break:break-word}@media (min-width: 480px){.page-title{font-size:1.75rem}}@media (min-width: 640px){.page-title{font-size:2rem;margin-bottom:8px}}.page-subtitle{font-size:.875rem;color:#6b7280;margin-bottom:16px}@media (min-width: 640px){.page-subtitle{font-size:1rem;margin-bottom:24px}}.ad-space{margin:20px 0;padding:14px;border:2px dashed var(--border-primary);border-radius:.5rem;background-color:var(--bg-tertiary);text-align:center;font-size:.8rem;color:var(--text-light)}@media (min-width: 640px){.ad-space{margin:24px 0;padding:16px;font-size:.875rem}}.history-section{margin-top:20px;background-color:var(--bg-secondary);border-radius:1rem;padding:16px;box-shadow:0 1px 2px #0000000d}@media (min-width: 640px){.history-section{margin-top:24px;padding:20px}}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}@media (min-width: 640px){.history-header{margin-bottom:16px}}.history-title{font-size:.95rem;font-weight:600;color:var(--text-primary);margin:0}@media (min-width: 640px){.history-title{font-size:1.05rem}}.history-clear-btn{font-size:.8rem;color:var(--text-light);background:none;border:none;cursor:pointer;padding:4px 10px;border-radius:.25rem;transition:color .2s,background-color .2s;-webkit-user-select:none;user-select:none}.history-clear-btn:hover{color:#ef4444;background-color:#fef2f2}.history-clear-btn:active{background-color:#fee2e2}.history-list{display:flex;flex-direction:column;gap:6px}@media (min-width: 640px){.history-list{gap:8px}}.history-item{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:10px 12px;background-color:var(--bg-tertiary);border-radius:.5rem;cursor:pointer;transition:background-color .15s,transform .1s;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.history-item:hover{background-color:var(--accent-light)}.history-item:active{transform:scale(.99);background-color:var(--accent-primary)}.history-item-left{display:flex;align-items:center;gap:8px;min-width:0;flex:1}.history-item-icon{font-size:1rem;flex-shrink:0}.history-item-text{font-size:.8rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}@media (min-width: 640px){.history-item-text{font-size:.875rem}}.history-item-time{font-size:.7rem;color:var(--text-light);flex-shrink:0;white-space:nowrap}@media (min-width: 640px){.history-item-time{font-size:.75rem}}.history-empty{text-align:center;padding:20px 0;color:var(--text-light);font-size:.85rem}@media (min-width: 640px){.history-empty{padding:24px 0;font-size:.9rem}}.history-hint{text-align:center;font-size:.7rem;color:#d1d5db;margin-top:10px;margin-bottom:0}@media (min-width: 640px){.history-hint{font-size:.75rem;margin-top:12px}}.favorites-section{margin-top:16px;background-color:var(--bg-secondary);border-radius:1rem;padding:16px;box-shadow:0 1px 2px #0000000d}@media (min-width: 640px){.favorites-section{margin-top:20px;padding:20px}}.favorites-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.favorites-title{font-size:.95rem;font-weight:600;color:var(--text-primary);margin:0}@media (min-width: 640px){.favorites-title{font-size:1.05rem}}.favorites-clear-btn{font-size:.8rem;color:var(--text-light);background:none;border:none;cursor:pointer;padding:4px 10px;border-radius:.25rem;transition:color .2s,background-color .2s}.favorites-clear-btn:hover{color:var(--error);background-color:#ef44441a}.favorites-list{display:flex;flex-direction:column;gap:6px}.favorites-empty{text-align:center;padding:16px 0;color:var(--text-light);font-size:.85rem}.favorite-item{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:8px 12px;background-color:#fbbf241a;border:1px solid rgba(251,191,36,.2);border-radius:.5rem;transition:background-color .15s}.favorite-item:hover{background-color:#fef3c7}.favorite-info{cursor:pointer;flex:1;min-width:0}.favorite-pair{font-size:.85rem;font-weight:600;color:#92400e}.favorite-pair-en{display:block;font-size:.7rem;color:#b45309;margin-top:1px}.favorite-remove-btn{background:none;border:none;color:#d1d5db;cursor:pointer;font-size:.85rem;padding:2px 6px;border-radius:.25rem;transition:color .2s,background-color .2s;flex-shrink:0}.favorite-remove-btn:hover{color:#ef4444;background-color:#fef2f2}.reference-table{overflow-x:auto;margin-top:12px;-webkit-overflow-scrolling:touch}@media (min-width: 640px){.reference-table{margin-top:16px}}.reference-table table{width:100%;font-size:.75rem;min-width:400px}@media (min-width: 480px){.reference-table table{font-size:.8rem;min-width:450px}}@media (min-width: 640px){.reference-table table{font-size:.875rem;min-width:0}}.reference-table th,.reference-table td{padding:6px 8px;text-align:left}@media (min-width: 640px){.reference-table th,.reference-table td{padding:8px 12px}}.reference-table th{background-color:var(--bg-tertiary);font-weight:600;border-bottom:1px solid var(--border-primary);white-space:nowrap;color:var(--text-primary)}.reference-table td{border-bottom:1px solid var(--border-primary);color:var(--text-secondary)}.quick-links{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-top:12px}@media (min-width: 640px){.quick-links{grid-template-columns:repeat(3,1fr);margin-top:16px}}@media (min-width: 1024px){.quick-links{grid-template-columns:repeat(4,1fr)}}.quick-link{padding:8px 10px;background-color:var(--bg-secondary);border-radius:.5rem;font-size:.8rem;cursor:pointer;transition:background-color .2s,color .2s,transform .1s;box-shadow:0 1px 2px #0000000d;text-align:center;touch-action:manipulation;-webkit-tap-highlight-color:transparent;color:var(--text-secondary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media (min-width: 640px){.quick-link{padding:10px 12px;font-size:.875rem}}.quick-link:hover{background-color:var(--accent-light);color:var(--accent-primary)}.quick-link:active{transform:scale(.98)}.faq-section{margin-top:24px}@media (min-width: 640px){.faq-section{margin-top:32px}}.faq-section h2{font-size:1.1rem;font-weight:600;margin-bottom:12px;color:var(--text-primary)}@media (min-width: 640px){.faq-section h2{font-size:1.25rem;margin-bottom:16px}}details{margin-bottom:8px;background-color:var(--bg-secondary);border-radius:.5rem;padding:12px 14px;box-shadow:0 1px 2px #0000000d}@media (min-width: 640px){details{margin-bottom:12px;padding:16px}}details summary{font-weight:500;cursor:pointer;font-size:.875rem;color:var(--text-secondary)}@media (min-width: 640px){details summary{font-size:1rem}}details p{margin-top:8px;color:var(--text-muted);font-size:.8rem;line-height:1.6}@media (min-width: 640px){details p{font-size:.875rem}}footer{margin-top:40px;padding:24px 0;background-color:var(--bg-secondary);border-top:1px solid var(--border-primary);text-align:center;font-size:.8rem;color:var(--text-light)}@media (min-width: 640px){footer{margin-top:64px;padding:32px 0;font-size:.875rem}}footer p{margin-bottom:4px}.conversion-details{background-color:var(--bg-secondary);border-radius:1rem;padding:16px;box-shadow:0 1px 2px #0000000d;margin-top:20px}@media (min-width: 640px){.conversion-details{padding:24px;margin-top:24px}}.conversion-details h2{font-size:1.1rem;font-weight:600;margin-bottom:12px}@media (min-width: 640px){.conversion-details h2{font-size:1.25rem;margin-bottom:16px}}.conversion-details h3{font-size:1rem;font-weight:600;margin-top:16px;margin-bottom:12px}@media (min-width: 640px){.conversion-details h3{font-size:1.1rem;margin-top:20px}}.conversion-details p{margin-bottom:6px;color:#374151;font-size:.875rem;word-break:break-word}@media (min-width: 640px){.conversion-details p{margin-bottom:8px;font-size:1rem}}.conversion-details strong{color:#111827}.conversion-table{display:grid;grid-template-columns:repeat(2,1fr);gap:6px;margin-top:16px}@media (min-width: 480px){.conversion-table{grid-template-columns:repeat(2,1fr)}}@media (min-width: 768px){.conversion-table{grid-template-columns:repeat(3,1fr)}}@media (min-width: 1024px){.conversion-table{grid-template-columns:repeat(4,1fr)}}.conversion-item{padding:8px 10px;background-color:#f9fafb;border-radius:.5rem;font-size:.8rem;word-break:break-word}@media (min-width: 640px){.conversion-item{padding:8px 12px;font-size:.875rem}}@media (max-width: 479px){.search-box{flex-direction:column}.search-box button{width:100%}.hero p{font-size:.9rem}.category-icon{font-size:1.5rem}.page-title{font-size:1.3rem}}@media (min-width: 1280px){.container{max-width:1400px}.hero h1{font-size:3.5rem}}@media (hover: none) and (pointer: coarse){.category-card:hover,.quick-link:hover{transform:none;box-shadow:0 1px 2px #0000000d}}.category-card,.quick-link,.swap-button,.copy-button,.search-box button,.result-button{-webkit-user-select:none;user-select:none}@media (max-width: 640px){.reference-table{font-size:.75rem;margin:12px -14px 0;padding:0 14px}.reference-table th,.reference-table td{padding:5px 6px}}.currency-section{background-color:#fff;border-radius:1rem;padding:16px;box-shadow:0 1px 2px #0000000d;margin-bottom:32px}@media (min-width: 640px){.currency-section{padding:24px;margin-bottom:40px}}.section-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:16px}@media (min-width: 640px){.section-header{gap:12px;margin-bottom:20px}}.rate-info{display:flex;align-items:center;gap:8px;font-size:.8rem;color:#6b7280;flex-wrap:wrap}@media (min-width: 640px){.rate-info{gap:12px;font-size:.875rem}}.warning-badge{padding:3px 6px;background-color:#fef3c7;color:#d97706;border-radius:.25rem;font-size:.7rem}@media (min-width: 640px){.warning-badge{padding:4px 8px;font-size:.75rem}}.currency-table-container{overflow-x:auto;-webkit-overflow-scrolling:touch}.currency-table{width:100%;border-collapse:collapse;font-size:.8rem;min-width:400px}@media (min-width: 640px){.currency-table{font-size:.9rem;min-width:0}}.currency-table th{background-color:#f9fafb;padding:10px 12px;text-align:left;font-weight:600;color:#374151;border-bottom:2px solid #e5e7eb;white-space:nowrap}@media (min-width: 640px){.currency-table th{padding:12px 16px}}.currency-table td{padding:10px 12px;border-bottom:1px solid #f3f4f6;white-space:nowrap}@media (min-width: 640px){.currency-table td{padding:12px 16px}}.currency-table tbody tr:hover{background-color:#f9fafb}.currency-hint{margin-top:12px;font-size:.8rem;color:#6b7280;text-align:center}@media (min-width: 640px){.currency-hint{margin-top:16px;font-size:.875rem}}.currency-hint a{color:#2563eb;text-decoration:none}.currency-hint a:hover{text-decoration:underline}@media (min-width: 1536px){.container{max-width:1536px}.category-grid{grid-template-columns:repeat(5,1fr)}}@media (max-width: 360px){.container{padding:0 8px}.converter-widget{padding:12px 10px}.converter-input{font-size:1rem;padding:10px 12px}.category-grid{grid-template-columns:repeat(2,1fr)}}