:root{--primary: #0a1628;--primary-light: #132238;--secondary: #1a3a5c;--accent: #00d4ff;--accent-warm: #ff6b4a;--gold: #ffd700;--gold-dark: #b8860b;--light: #e8f4fc;--light-dim: #a8c5d9;--cyan: #00e5cc;--purple-mystical: #6366f1;--dark: #050a12;--dark-card: rgba(10, 22, 40, .95);--gray: #4a6a8a;--success: #10b981;--error: #ef4444;--gradient-gold: linear-gradient(135deg, #ffd700 0%, #b8860b 100%);--gradient-accent: linear-gradient(135deg, #00d4ff 0%, #00e5cc 100%);--gradient-mystical: linear-gradient(135deg, #1a3a5c 0%, #0a1628 50%, #6366f1 100%);--gradient-bg: linear-gradient(180deg, #0a1628 0%, #132238 50%, #0f1f35 100%)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Noto Sans SC,Microsoft YaHei,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--gradient-bg);min-height:100vh;color:var(--light);line-height:1.7;overflow-x:hidden}#root{min-height:100vh;display:flex;flex-direction:column}.app-container{position:relative;min-height:100vh}.app-container:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(1px 1px at 20% 30%,rgba(255,255,255,.8),transparent),radial-gradient(1px 1px at 40% 70%,rgba(255,255,255,.5),transparent),radial-gradient(1px 1px at 50% 50%,rgba(255,255,255,.6),transparent),radial-gradient(1px 1px at 60% 20%,rgba(255,255,255,.7),transparent),radial-gradient(1px 1px at 80% 90%,rgba(255,255,255,.4),transparent),radial-gradient(1px 1px at 10% 60%,rgba(255,255,255,.5),transparent),radial-gradient(1px 1px at 90% 40%,rgba(255,255,255,.6),transparent),radial-gradient(ellipse at 50% 100%,rgba(0,212,255,.08) 0%,transparent 60%),radial-gradient(ellipse at 50% 0%,rgba(99,102,241,.06) 0%,transparent 50%),radial-gradient(circle at 80% 20%,rgba(255,215,0,.05) 0%,transparent 40%),radial-gradient(circle at 20% 80%,rgba(0,229,204,.05) 0%,transparent 40%);pointer-events:none;z-index:0;animation:stars 60s linear infinite}@keyframes stars{0%{background-position:0 0}to{background-position:0 1000px}}.header{background:linear-gradient(180deg,#0a1628fa,#0a1628e6);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);padding:.75rem 2rem;position:sticky;top:0;z-index:100;border-bottom:1px solid rgba(0,212,255,.2);box-shadow:0 4px 30px #0000004d}.header:after{content:"";position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.5}.header-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:.75rem;font-size:1.4rem;font-weight:700;background:var(--gradient-gold);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-decoration:none;letter-spacing:2px}.logo-symbol{font-size:1.8rem;filter:drop-shadow(0 0 8px rgba(255,215,0,.5))}.nav{display:flex;gap:.5rem;align-items:center}.nav-link{color:var(--light-dim);text-decoration:none;transition:all .3s ease;font-size:.9rem;padding:.5rem 1rem;border-radius:4px;position:relative;overflow:hidden}.nav-link:before{content:"";position:absolute;bottom:0;left:50%;transform:translate(-50%);width:0;height:2px;background:var(--gradient-accent);transition:width .3s ease}.nav-link:hover{color:var(--accent)}.nav-link:hover:before{width:80%}.nav-link.active{color:var(--gold);background:#ffd7001a}.nav-link.active:before{width:80%;background:var(--gold)}.main{flex:1;padding:2rem;max-width:1200px;margin:0 auto;width:100%;position:relative;z-index:1}.card{background:var(--dark-card);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:16px;padding:2rem;border:1px solid rgba(0,212,255,.15);box-shadow:0 8px 32px #0006,inset 0 1px #ffffff0d;position:relative;overflow:hidden}.card:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(0,212,255,.3),transparent)}.card-title{font-size:1.5rem;color:var(--gold);margin-bottom:1.5rem;display:flex;align-items:center;gap:.75rem;font-weight:600;letter-spacing:1px}.card-title span{font-size:1.8rem;filter:drop-shadow(0 0 10px rgba(255,215,0,.5))}.form-group{margin-bottom:1.5rem}.form-label{display:block;margin-bottom:.5rem;color:var(--light-dim);font-size:.85rem;font-weight:500;letter-spacing:.5px}.form-input{width:100%;padding:.875rem 1rem;border:1px solid rgba(0,212,255,.2);border-radius:8px;background:#0a1628cc;color:var(--light);font-size:1rem;transition:all .3s ease}.form-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #00d4ff26,0 0 20px #00d4ff1a}.form-input::placeholder{color:var(--gray)}.form-textarea{resize:vertical;min-height:120px}.form-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;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='%2300d4ff' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 1rem center;padding-right:2.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.875rem 1.75rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;letter-spacing:.5px}.btn-primary{background:var(--gradient-accent);color:var(--primary);box-shadow:0 4px 20px #00d4ff4d}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 30px #00d4ff80}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-secondary{background:transparent;color:var(--accent);border:1px solid var(--accent)}.btn-secondary:hover{background:#00d4ff1a;box-shadow:0 0 20px #00d4ff33}.btn-gold{background:var(--gradient-gold);color:var(--primary);box-shadow:0 4px 20px #ffd7004d}.btn-gold:hover{transform:translateY(-2px);box-shadow:0 6px 30px #ffd70080}.btn-block{width:100%}.auth-container{max-width:420px;margin:4rem auto}.auth-tabs{display:flex;gap:.5rem;margin-bottom:2rem;background:#0000004d;padding:4px;border-radius:10px}.auth-tab{flex:1;padding:.75rem;background:transparent;border:none;border-radius:8px;color:var(--light-dim);cursor:pointer;transition:all .3s ease;font-weight:500}.auth-tab.active{background:var(--gradient-accent);color:var(--primary)}.divination-container{max-width:900px;margin:0 auto}.question-input{margin-bottom:2rem}.hexagram-display{display:grid;grid-template-columns:1fr 1fr;gap:2rem;margin:2rem 0}.hexagram-card{text-align:center;padding:2rem 1.5rem;background:#0000004d;border-radius:12px;border:1px solid rgba(255,215,0,.1)}.hexagram-name{font-size:2rem;color:var(--gold);margin-bottom:.5rem;text-shadow:0 0 20px rgba(255,215,0,.3)}.hexagram-symbol{font-size:4.5rem;margin-bottom:.75rem;filter:drop-shadow(0 0 15px rgba(255,215,0,.4))}.hexagram-binary{color:var(--gray);font-family:Courier New,monospace;letter-spacing:.3rem;font-size:.9rem}.hexagram-lines{margin:1.5rem 0}.yao-line{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:.4rem;font-size:1.4rem;color:var(--light)}.yao-line.moving{color:var(--accent-warm);text-shadow:0 0 10px rgba(255,107,74,.5)}.moving-indicator{font-size:.7rem;color:var(--accent-warm)}.interpretation-box{margin-top:2rem;padding:1.5rem;background:#0006;border-radius:12px;border-left:3px solid var(--gold)}.interpretation-text{white-space:pre-wrap;line-height:1.9;color:var(--light-dim)}.history-list{display:flex;flex-direction:column;gap:.75rem}.history-item{padding:1.25rem;background:#0000004d;border-radius:10px;cursor:pointer;transition:all .3s ease;border:1px solid transparent}.history-item:hover{background:#00d4ff1a;border-color:#00d4ff4d}.history-question{color:var(--light);margin-bottom:.5rem;font-weight:500}.history-hexagram{color:var(--gold);font-size:.9rem}.history-date{color:var(--gray);font-size:.8rem;margin-top:.5rem}.settings-section{margin-bottom:2.5rem}.settings-title{font-size:1.1rem;color:var(--accent);margin-bottom:1rem;font-weight:600;letter-spacing:.5px}.language-selector{display:flex;gap:.5rem;flex-wrap:wrap}.language-btn{padding:.6rem 1.2rem;border:1px solid rgba(0,212,255,.3);border-radius:6px;background:transparent;color:var(--light-dim);cursor:pointer;transition:all .3s ease;font-size:.9rem}.language-btn:hover{border-color:var(--accent);color:var(--accent)}.language-btn.active{background:var(--gradient-accent);color:var(--primary);border-color:transparent}.loading{display:flex;align-items:center;justify-content:center;padding:3rem}.spinner{width:48px;height:48px;border:3px solid rgba(0,212,255,.2);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.toast{position:fixed;bottom:2rem;right:2rem;padding:1rem 1.5rem;border-radius:10px;color:#fff;font-weight:500;z-index:1000;animation:slideIn .3s ease;box-shadow:0 4px 20px #0000004d}.toast-success{background:linear-gradient(135deg,#10b981,#059669)}.toast-error{background:linear-gradient(135deg,#ef4444,#dc2626)}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.footer{text-align:center;padding:2rem;color:var(--gray);font-size:.85rem;position:relative;z-index:1}.footer:before{content:"";position:absolute;top:0;left:20%;right:20%;height:1px;background:linear-gradient(90deg,transparent,rgba(0,212,255,.2),transparent)}.trigram{font-size:2.2rem;color:var(--gold);filter:drop-shadow(0 0 8px rgba(255,215,0,.4));transition:transform .3s ease}.trigram:hover{transform:scale(1.1)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.fade-in{animation:fadeIn .5s ease}.slide-up{animation:slideUp .5s ease}@media (max-width: 768px){.header{padding:.75rem 1rem}.header-content{flex-direction:column;gap:1rem}.nav{flex-wrap:wrap;justify-content:center;gap:.25rem}.nav-link{padding:.4rem .75rem;font-size:.85rem}.main{padding:1rem}.hexagram-display{grid-template-columns:1fr}.card{padding:1.5rem}.hexagram-symbol{font-size:3.5rem}.hexagram-name{font-size:1.5rem}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--primary)}::-webkit-scrollbar-thumb{background:var(--secondary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent)}::selection{background:#00d4ff4d;color:var(--light)}