.app{min-height:100vh;display:flex;flex-direction:column;position:relative;overflow:hidden}.app:before{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at 20% 0%,rgba(201,169,110,.04) 0%,transparent 50%),radial-gradient(ellipse at 80% 100%,rgba(60,50,80,.06) 0%,transparent 50%);pointer-events:none;z-index:0}.app:after{content:"";position:fixed;top:0;right:0;bottom:0;left:0;background:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");pointer-events:none;z-index:0}.header{position:relative;z-index:1;padding:3rem 2rem 1.5rem;text-align:center;animation:fadeIn .8s ease-out}.header__title{font-family:var(--font-display);font-size:2rem;font-weight:400;letter-spacing:.3em;color:var(--text-primary);margin-bottom:.5rem}.header__subtitle{font-size:.85rem;color:var(--text-dim);letter-spacing:.15em}.header__divider{width:60px;height:1px;background:linear-gradient(90deg,transparent,var(--accent-dim),transparent);margin:1.2rem auto 0}.main{position:relative;z-index:1;flex:1;max-width:720px;width:100%;margin:0 auto;padding:1rem 2rem 3rem;display:flex;flex-direction:column;gap:1.5rem}.input-section{animation:fadeIn .6s ease-out .2s both}.input-section__label{font-size:.8rem;color:var(--text-secondary);letter-spacing:.1em;margin-bottom:.75rem;display:block}.input-section__textarea{width:100%;min-height:160px;padding:1.2rem;background:var(--bg-input);border:1px solid var(--border);border-radius:4px;color:var(--text-primary);font-size:.95rem;line-height:1.8;transition:border-color .3s}.input-section__textarea:focus{outline:none;border-color:var(--accent-dim);box-shadow:0 0 20px var(--accent-glow)}.input-section__textarea::placeholder{color:var(--text-dim)}.input-section__hint{font-size:.75rem;color:var(--text-dim);margin-top:.5rem}.input-section__actions{display:flex;justify-content:flex-end;margin-top:1rem}.btn{padding:.65rem 1.8rem;font-size:.85rem;letter-spacing:.12em;border-radius:2px;transition:all .3s}.btn--primary{background:var(--accent);color:var(--bg-deep);font-weight:600}.btn--primary:hover:not(:disabled){background:#d4b87a;box-shadow:0 0 24px var(--accent-glow)}.btn--primary:disabled{opacity:.4;cursor:not-allowed}.btn--ghost{color:var(--text-secondary);border:1px solid var(--border)}.btn--ghost:hover{color:var(--text-primary);border-color:var(--border-glow)}.response-section{animation:fadeIn .6s ease-out}.response-section__header{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem;padding-bottom:.75rem;border-bottom:1px solid var(--border)}.response-section__avatar{width:32px;height:32px;border-radius:50%;background:var(--bg-elevated);border:1px solid var(--accent-dim);display:flex;align-items:center;justify-content:center;font-size:.75rem;color:var(--accent)}.response-section__name{font-size:.85rem;color:var(--accent);letter-spacing:.08em}.response-section__content{font-size:.92rem;line-height:1.9;color:var(--text-primary);white-space:pre-wrap;word-break:break-word}.response-section__content h2,.response-section__content h3{font-family:var(--font-display);color:var(--accent);font-weight:400;margin:1.5rem 0 .75rem;font-size:1rem;letter-spacing:.08em}.response-section__content h2:first-child,.response-section__content h3:first-child{margin-top:0}.response-section__cursor{display:inline-block;width:2px;height:1em;background:var(--accent);margin-left:2px;vertical-align:text-bottom;animation:blink 1s step-end infinite}.loading{display:flex;align-items:center;gap:.75rem;padding:2rem 0;color:var(--text-secondary);font-size:.85rem;animation:fadeIn .4s ease-out}.loading__dot{width:6px;height:6px;border-radius:50%;background:var(--accent-dim);animation:pulse-glow 1.5s ease-in-out infinite}.loading__dot:nth-child(2){animation-delay:.3s}.loading__dot:nth-child(3){animation-delay:.6s}.error-banner{padding:.75rem 1rem;background:#a050501a;border:1px solid rgba(160,80,80,.3);border-radius:4px;color:#c08080;font-size:.85rem;animation:fadeIn .4s ease-out}.footer{position:relative;z-index:1;text-align:center;padding:1.5rem;font-size:.7rem;color:var(--text-dim);letter-spacing:.1em}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000bf;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;display:flex;align-items:center;justify-content:center;padding:2rem;animation:fadeIn .3s ease-out}.modal{background:var(--bg-surface);border:1px solid var(--border);border-radius:6px;max-width:600px;width:100%;max-height:85vh;overflow-y:auto;box-shadow:0 20px 60px #00000080;animation:fadeIn .4s ease-out .1s both}.modal__header{padding:1.5rem 1.5rem 1rem;border-bottom:1px solid var(--border)}.modal__title{font-family:var(--font-display);font-size:1.1rem;color:var(--accent);letter-spacing:.1em;font-weight:400}.modal__desc{font-size:.8rem;color:var(--text-dim);margin-top:.4rem}.modal__body{padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem}.modal__footer{padding:0 1.5rem 1.5rem;display:flex;justify-content:space-between;align-items:center;gap:1rem}.question-item{display:flex;flex-direction:column;gap:.6rem}.question-item__label{font-size:.88rem;color:var(--text-primary);line-height:1.6}.question-item__number{color:var(--accent-dim);margin-right:.3rem}.question-item__options{display:flex;flex-direction:column;gap:.4rem;padding-left:.5rem}.question-item__option{display:flex;align-items:flex-start;gap:.6rem;padding:.5rem .75rem;border:1px solid transparent;border-radius:3px;cursor:pointer;transition:all .2s;font-size:.85rem;color:var(--text-secondary)}.question-item__option:hover{background:var(--bg-elevated);border-color:var(--border)}.question-item__option--selected{background:var(--accent-glow);border-color:var(--accent-dim);color:var(--text-primary)}.question-item__option input{margin-top:.35rem;accent-color:var(--accent)}.question-item__open-input{width:100%;padding:.75rem;background:var(--bg-input);border:1px solid var(--border);border-radius:3px;color:var(--text-primary);font-size:.85rem;line-height:1.6;min-height:80px}.question-item__open-input:focus{outline:none;border-color:var(--accent-dim)}.chat-thread{display:flex;flex-direction:column;gap:1.5rem;animation:fadeIn .6s ease-out}.chat-message--user{display:flex;justify-content:flex-end}.chat-message__bubble{max-width:85%;padding:.85rem 1.1rem;background:var(--bg-elevated);border:1px solid var(--border);border-radius:4px 4px 0;font-size:.9rem;line-height:1.7;color:var(--text-primary);white-space:pre-wrap;word-break:break-word}.chat-message--assistant{padding-bottom:.5rem}.chat-message__header{display:flex;align-items:center;gap:.75rem;margin-bottom:.75rem}.chat-message__content{font-size:.92rem;line-height:1.9;color:var(--text-primary);white-space:pre-wrap;word-break:break-word}.chat-message__content h2,.chat-message__content h3{font-family:var(--font-display);color:var(--accent);font-weight:400;margin:1.5rem 0 .75rem;font-size:1rem;letter-spacing:.08em}.chat-message__content h2:first-child,.chat-message__content h3:first-child{margin-top:0}.chat-input-section{animation:fadeIn .4s ease-out;border-top:1px solid var(--border);padding-top:1.25rem}.chat-input-section--disabled{opacity:.6}.chat-input-section__textarea{width:100%;padding:.9rem 1.1rem;background:var(--bg-input);border:1px solid var(--border);border-radius:4px;color:var(--text-primary);font-size:.9rem;line-height:1.7;transition:border-color .3s}.chat-input-section__textarea:focus{outline:none;border-color:var(--accent-dim);box-shadow:0 0 20px var(--accent-glow)}.chat-input-section__textarea::placeholder{color:var(--text-dim)}.chat-input-section__actions{display:flex;justify-content:space-between;align-items:center;margin-top:.75rem}.chat-suggestions{display:flex;flex-direction:column;gap:.5rem;margin-bottom:.75rem}.chat-suggestions__label{font-size:.75rem;color:var(--text-dim);letter-spacing:.05em}.chat-suggestions__chips{display:flex;flex-wrap:wrap;gap:.5rem}.chat-suggestions__loading{font-size:.8rem;color:var(--text-dim)}.chat-suggestion-chip{padding:.4rem .75rem;background:var(--bg-elevated);border:1px solid var(--border);border-radius:20px;font-size:.8rem;color:var(--text-secondary);line-height:1.4;text-align:left;transition:all .2s}.chat-suggestion-chip:hover{border-color:var(--accent-dim);color:var(--text-primary);background:var(--accent-glow)}@media(max-width:600px){.header{padding:2rem 1.5rem 1rem}.header__title{font-size:1.5rem;letter-spacing:.2em}.main{padding:1rem 1.5rem 2rem}.modal-overlay{padding:1rem}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-deep: #0a0a0c;--bg-surface: #12121a;--bg-elevated: #1a1a24;--bg-input: #0e0e14;--border: #2a2a36;--border-glow: #3d3d52;--text-primary: #d4d0c8;--text-secondary: #8a8690;--text-dim: #5a5660;--accent: #c9a96e;--accent-dim: #8a7348;--accent-glow: rgba(201, 169, 110, .15);--danger: #a05050;--font-serif: "Noto Serif SC", "ZCOOL XiaoWei", serif;--font-display: "ZCOOL XiaoWei", "Noto Serif SC", serif}html{font-size:16px}body{font-family:var(--font-serif);background:var(--bg-deep);color:var(--text-primary);min-height:100vh;line-height:1.7;-webkit-font-smoothing:antialiased}#root{min-height:100vh}::selection{background:var(--accent-glow);color:var(--accent)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-deep)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}input,textarea,button{font-family:inherit}button{cursor:pointer;border:none;background:none}textarea{resize:vertical}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse-glow{0%,to{opacity:.4}50%{opacity:1}}@keyframes blink{0%,to{opacity:1}50%{opacity:0}}