:root{--bg: #f4f5f7;--surface: #ffffff;--surface-soft: #f8f9fb;--text: #2b2f36;--text-secondary: #6b7280;--text-muted: #9aa1ab;--border: #e3e6ec;--primary: #fb7299;--primary-strong: #f05a86;--primary-soft: rgba(251, 114, 153, .12);--primary-dim: rgba(251, 114, 153, .2);--focus-ring: rgba(251, 114, 153, .28);--danger: #d64550;--danger-soft: #fdecee;--nav-bg: #1f2430;--nav-text: #cfd4de;--radius-lg: 14px;--radius-md: 10px;--radius-sm: 8px;--shadow-sm: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .1);--shadow-md: 0 8px 28px rgba(16, 24, 40, .18);--nav-height: 56px;--content-max: 620px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{width:100%;height:100%}body{background-color:var(--bg);color:var(--text);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button{font-family:inherit}.app{display:flex;flex-direction:column;height:100%;overflow:hidden}.content{flex:1;overflow-y:auto;background-color:var(--bg)}.navbar{position:sticky;top:0;z-index:100;display:flex;align-items:center;gap:12px;height:calc(var(--nav-height) + env(safe-area-inset-top,0px));padding-top:env(safe-area-inset-top,0px);padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));background-color:var(--nav-bg);box-shadow:0 1px 2px #00000040;flex-shrink:0}.brand{display:flex;align-items:center;gap:10px;margin-right:auto;min-width:0;color:#fff}.brand img{width:30px;height:30px;border-radius:50%;object-fit:cover;flex-shrink:0}.brand span{font-size:1rem;font-weight:600;letter-spacing:.02em;white-space:nowrap}.hamburger{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;border-radius:var(--radius-sm);background:transparent;color:#e8eaf0;font-size:20px;cursor:pointer;transition:background-color .2s;flex-shrink:0}.hamburger:hover{background-color:#ffffff14}.nav-links{display:none;align-items:center;gap:4px}.nav-links button{display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 14px;border:none;border-radius:999px;background:transparent;color:var(--nav-text);font-size:.9rem;cursor:pointer;transition:background-color .2s,color .2s}.nav-links button i{font-size:15px}.nav-links button:hover{background-color:#ffffff14;color:#fff}.nav-links button.active{background-color:var(--primary);color:#fff}.navbar .install-btn{display:none}.update-banner{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;min-height:42px;padding:8px 16px;border:none;background-color:var(--primary);color:#fff;font-size:.9rem;cursor:pointer;flex-shrink:0;z-index:85;animation:banner-in .3s ease}.update-banner:hover{background-color:var(--primary-strong)}@keyframes banner-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}@media (min-width: 900px){.hamburger{display:none}.nav-links{display:flex}.navbar .install-btn{display:inline-flex}.update-banner{font-size:.95rem}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;padding:0 14px;border:1px solid var(--border);border-radius:var(--radius-md);background-color:var(--surface);color:var(--text-secondary);font-size:.875rem;cursor:pointer;transition:background-color .2s,border-color .2s,color .2s}.btn:hover{border-color:#c7ccd5;color:var(--text)}.btn-primary{background-color:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-strong);border-color:var(--primary-strong);color:#fff}.btn:focus-visible,.nav-links button:focus-visible,.hamburger:focus-visible,.drawer-links button:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.drawer-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:90;background-color:#0d10178c;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}.drawer-backdrop.open{opacity:1;visibility:visible}.drawer{position:fixed;top:calc(var(--nav-height) + env(safe-area-inset-top,0px));bottom:0;left:0;z-index:95;display:flex;flex-direction:column;width:min(280px,82vw);padding:18px 16px calc(env(safe-area-inset-bottom,0px) + 18px);background-color:var(--nav-bg);transform:translate(-105%);visibility:hidden;transition:transform .28s ease,visibility 0s .28s;overflow-y:auto}.drawer.open{transform:translate(0);visibility:visible;transition:transform .28s ease;box-shadow:var(--shadow-md)}.drawer-header{display:flex;align-items:center;gap:12px;padding:4px 6px 18px;margin-bottom:12px;border-bottom:1px solid rgba(255,255,255,.08)}.drawer-header img{width:44px;height:44px;border-radius:50%;object-fit:cover}.drawer-header strong{display:block;color:#fff;font-size:1rem}.drawer-header small{color:var(--text-muted);font-size:.78rem}.drawer-links{display:flex;flex-direction:column;gap:6px}.drawer-links button{display:flex;align-items:center;gap:14px;width:100%;height:48px;padding:0 12px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--nav-text);font-size:.95rem;cursor:pointer;transition:background-color .2s,color .2s}.drawer-links button i{width:20px;text-align:center;font-size:16px}.drawer-links button:hover{background-color:#ffffff14;color:#fff}.drawer-links button.active{background-color:var(--primary-dim);color:#fff}.drawer .drawer-install{margin-top:auto}@media (min-width: 900px){.drawer,.drawer-backdrop{display:none}}.page{width:100%;max-width:var(--content-max);margin:0 auto;padding:22px 16px calc(30px + env(safe-area-inset-bottom,0px))}.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}.page-header h1{font-size:1.25rem;font-weight:700;letter-spacing:.01em}.page-desc{margin-top:5px;color:var(--text-secondary);font-size:.875rem;line-height:1.55}.clear-btn{flex-shrink:0;margin-top:2px}.calc-card{background-color:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px;box-shadow:var(--shadow-sm)}.field{position:relative;display:flex;align-items:stretch}.field+.field{margin-top:12px}.field-label{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;min-width:96px;padding:0 12px;border:1px solid var(--border);border-right:none;border-radius:var(--radius-sm) 0 0 var(--radius-sm);background-color:var(--surface-soft);color:var(--text-secondary);font-size:.875rem;line-height:1.2;white-space:nowrap}.field input{flex:1;min-width:0;height:46px;padding:0 12px;border:1px solid var(--border);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background-color:var(--surface);color:var(--text);font-size:1.0625rem;cursor:text;transition:border-color .2s,box-shadow .2s,background-color .2s}.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--focus-ring)}.field input::placeholder{color:var(--text-muted)}.field.entered .field-label{background-color:var(--primary-soft);border-color:#fb729966;color:var(--primary-strong)}.field.entered input{border-color:#fb729980}.field.computed input{padding-right:82px;background-color:#fbfcfe;color:#374151}.auto-badge{position:absolute;top:50%;right:10px;transform:translateY(-50%);padding:3px 8px;border-radius:999px;background-color:var(--primary-soft);color:var(--primary-strong);font-size:.75rem;line-height:1;white-space:nowrap;pointer-events:none}.field.invalid .field-label{border-color:var(--danger);color:var(--danger)}.field.invalid input{border-color:var(--danger);box-shadow:0 0 0 3px #d6455026}.error-bar{display:flex;align-items:center;gap:8px;margin-bottom:12px;padding:9px 12px;border:1px solid rgba(214,69,80,.28);border-radius:var(--radius-sm);background-color:var(--danger-soft);color:var(--danger);font-size:.875rem}.error-bar i{font-size:14px}.formula-note{margin-top:14px;padding:0 4px;color:var(--text-muted);font-size:.8125rem;line-height:1.9}.formula-note code{padding:1px 6px;border-radius:5px;background-color:#eceef2;color:var(--text-secondary);font-family:var(--font-sans);font-size:.78rem}@media (max-width: 380px){.field-label{min-width:84px;padding:0 8px;font-size:.82rem}.calc-card{padding:14px 12px}.page{padding-left:12px;padding-right:12px}}@media 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