:root{--primary: #6366f1;--primary-light: #818cf8;--primary-bg: #eef2ff;--primary-glow: rgba(99, 102, 241, .15);--bg: #f5f3ff;--card-bg: #ffffff;--text: #1e1b4b;--text-secondary: #6b7280;--text-muted: #9ca3af;--border: #e5e7eb;--user-bubble: #6366f1;--user-text: #ffffff;--assistant-bubble: #ffffff;--assistant-border: #e5e7eb;--success: #10b981;--warning: #f59e0b;--error: #ef4444;--radius-sm: 10px;--radius: 16px;--radius-lg: 20px;--shadow: 0 1px 3px rgba(0, 0, 0, .06), 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px rgba(0, 0, 0, .05), 0 2px 4px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .06), 0 4px 6px rgba(0, 0, 0, .04)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}.app{display:flex;flex-direction:column;max-width:680px;margin:0 auto;min-height:100vh;background:var(--bg)}.app-header{position:sticky;top:0;z-index:100;background:#f5f3ffd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 16px}.app-header__inner{display:flex;align-items:center;gap:12px;height:56px;max-width:680px;margin:0 auto}.app-logo{font-size:1.4rem}.app-header__title{font-size:1.1rem;font-weight:700;color:var(--text);white-space:nowrap}.app-header__subtitle{font-size:.75rem;color:var(--text-muted);background:var(--card-bg);padding:2px 10px;border-radius:20px;border:1px solid var(--border)}.btn-reset{margin-left:auto;background:none;border:1px solid var(--border);border-radius:var(--radius-sm);padding:6px 14px;font-size:.8rem;color:var(--text-secondary);cursor:pointer;transition:all .2s;white-space:nowrap}.btn-reset:hover{background:var(--card-bg);border-color:var(--primary);color:var(--primary)}.btn-primary{display:inline-flex;align-items:center;justify-content:center;background:var(--primary);color:#fff;border:none;padding:12px 28px;border-radius:var(--radius);font-size:1rem;font-weight:600;text-decoration:none;cursor:pointer;transition:all .2s;box-shadow:0 4px 12px var(--primary-glow)}.btn-primary:hover{background:var(--primary-light);transform:translateY(-1px)}.btn-primary:active{transform:translateY(0)}.btn-secondary{display:inline-flex;align-items:center;justify-content:center;background:var(--card-bg);color:var(--text-secondary);border:1px solid var(--border);padding:12px 24px;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-secondary:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}.btn-secondary:active{transform:translateY(0)}.app-progress{padding:14px 16px 0;max-width:680px;margin:0 auto;width:100%}.progress-bar{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}.progress-bar__track{height:6px;background:#e5e7eb;border-radius:3px;overflow:hidden;margin-bottom:12px}.progress-bar__fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--primary-light));border-radius:3px;transition:width .5s cubic-bezier(.4,0,.2,1)}.progress-bar__steps{display:flex;justify-content:space-between}.progress-step{display:flex;align-items:center;gap:6px;font-size:.75rem;color:var(--text-muted);transition:color .3s}.progress-step.filled{color:var(--success)}.progress-step.current{color:var(--primary);font-weight:600}.progress-step__icon{font-size:.9rem}.app-chat{flex:1;overflow-y:auto;padding:16px;max-width:680px;margin:0 auto;width:100%}.chat-messages{display:flex;flex-direction:column;gap:14px}.chat-bubble{display:flex;gap:10px;max-width:88%;animation:bubbleIn .35s cubic-bezier(.34,1.56,.64,1)}@keyframes bubbleIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.chat-bubble--user{align-self:flex-end;flex-direction:row-reverse}.chat-bubble--assistant{align-self:flex-start}.chat-bubble__avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0;background:var(--card-bg);border:1px solid var(--border)}.chat-bubble--user .chat-bubble__avatar{background:var(--primary-bg);border-color:var(--primary-light)}.chat-bubble__content{padding:12px 16px;border-radius:var(--radius);position:relative}.chat-bubble--assistant .chat-bubble__content{background:var(--assistant-bubble);border:1px solid var(--assistant-border);border-top-left-radius:4px;box-shadow:var(--shadow)}.chat-bubble--user .chat-bubble__content{background:var(--user-bubble);color:var(--user-text);border-top-right-radius:4px;box-shadow:var(--shadow-md)}.chat-bubble__text{font-size:.95rem;line-height:1.7;word-break:break-word}.chat-bubble--user .chat-bubble__text strong{color:#fff}.chat-bubble__quick-replies{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.quick-reply-btn{display:inline-block;padding:8px 16px;border:1.5px solid var(--primary);border-radius:20px;background:var(--card-bg);color:var(--primary);font-size:.9rem;font-family:inherit;cursor:pointer;transition:all .2s;white-space:nowrap}.quick-reply-btn:hover{background:var(--primary);color:#fff}.quick-reply-btn:active{transform:scale(.96)}.thinking-dots{display:flex;gap:6px;padding:4px 0}.thinking-dots .dot{width:8px;height:8px;background:var(--text-muted);border-radius:50%;animation:dotBounce 1.4s infinite ease-in-out both}.thinking-dots .dot:nth-child(1){animation-delay:-.32s}.thinking-dots .dot:nth-child(2){animation-delay:-.16s}@keyframes dotBounce{0%,80%,to{transform:scale(.6);opacity:.4}40%{transform:scale(1);opacity:1}}.app-input{position:sticky;bottom:0;padding:12px 16px 20px;background:linear-gradient(180deg,transparent 0%,var(--bg) 40%);max-width:680px;margin:0 auto;width:100%}.chat-input__wrapper{display:flex;align-items:center;gap:8px;background:var(--card-bg);border:2px solid var(--border);border-radius:var(--radius-lg);padding:10px 12px;transition:border-color .2s;box-shadow:var(--shadow-md)}.chat-input__wrapper:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.chat-input__textarea{flex:1;height:40px;min-height:40px;padding:8px 0;border:none;outline:none;resize:none;font-size:.95rem;font-family:inherit;line-height:24px;color:var(--text);background:transparent;max-height:120px;overflow-y:auto}.chat-input__textarea::placeholder{color:var(--text-muted)}.chat-input__send{width:40px;height:40px;border-radius:50%;border:none;background:var(--primary);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s;padding:0}.chat-input__send:hover:not(:disabled){background:var(--primary-light);transform:scale(1.05)}.chat-input__send:disabled{opacity:.3;cursor:not-allowed;background:var(--text-muted)}.chat-input__hint{font-size:.7rem;color:var(--text-muted);text-align:center;margin-top:6px}.app-results{padding:0 16px 40px;max-width:680px;margin:0 auto;width:100%}.results-header{text-align:center;padding:24px 0 20px}.results-header h2{font-size:1.3rem;font-weight:700;margin-bottom:6px}.results-header p{font-size:.85rem;color:var(--text-secondary)}.results-grid{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}.result-card{background:var(--card-bg);border:1px solid var(--card-accent-soft, var(--border));border-radius:var(--radius);padding:20px;border-left:4px solid var(--primary);box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s;animation:cardSlideUp .4s cubic-bezier(.34,1.56,.64,1) both}.result-card:nth-child(1){animation-delay:0s}.result-card:nth-child(2){animation-delay:.05s}.result-card:nth-child(3){animation-delay:.1s}.result-card:nth-child(4){animation-delay:.15s}.result-card:nth-child(5){animation-delay:.2s}.result-card:nth-child(6){animation-delay:.25s}.result-card:nth-child(7){animation-delay:.3s}.result-card:nth-child(8){animation-delay:.35s}@keyframes cardSlideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.result-card:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg)}.result-card__header{display:flex;align-items:center;gap:10px;margin-bottom:12px}.result-card__rank{font-size:.75rem;font-weight:700;color:var(--text-muted);background:#f3f4f6;width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.result-card__title{font-size:1rem;font-weight:700;color:var(--text);flex:1}.result-card__badge{font-size:.7rem;padding:3px 10px;border-radius:20px;font-weight:600;white-space:nowrap}.result-card__reason{font-size:.88rem;line-height:1.75;color:var(--text-secondary)}.result-card__paths{display:flex;flex-direction:column;gap:8px;margin-top:14px;padding-top:12px;border-top:1px solid var(--border)}.result-card__path-note{color:var(--text-muted);font-size:.76rem;line-height:1.6}.result-card__path{display:grid;grid-template-columns:72px 1fr;gap:10px;align-items:start;width:100%;padding:8px 10px;border:1px solid transparent;border-radius:8px;background:transparent;font-size:.82rem;line-height:1.6;color:var(--text-secondary);font-family:inherit;text-align:left;cursor:pointer;transition:background .2s,border-color .2s}.result-card__path:hover,.result-card__path.active{background:var(--card-accent-bg, var(--primary-bg));border-color:var(--card-accent-soft, rgba(99, 102, 241, .22))}.result-card__path-label{color:var(--card-accent, var(--primary));font-weight:700;white-space:nowrap}.result-card__path-detail{margin-top:2px;padding:12px 14px;border:1px solid var(--card-accent-soft, rgba(99, 102, 241, .18));border-radius:8px;background:var(--card-detail-bg, #fafaff)}.result-card__path-detail-title{margin-bottom:8px;color:var(--text);font-size:.86rem;font-weight:700}.result-card__path-steps{display:flex;flex-direction:column;gap:6px;padding-left:20px;color:var(--text-secondary);font-size:.82rem;line-height:1.65}.results-footer{text-align:center;padding:8px 0}.results-disclaimer{font-size:.8rem;color:var(--text-muted);margin-bottom:16px;line-height:1.6}.wechat-feedback{display:flex;align-items:center;justify-content:center;gap:14px;max-width:360px;margin:0 auto 16px;padding:14px;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);text-align:left}.wechat-feedback__qr{width:96px;height:96px;flex:0 0 auto;border-radius:8px}.wechat-feedback__copy{display:flex;flex-direction:column;gap:4px;min-width:0}.wechat-feedback__copy strong{color:var(--text);font-size:.95rem}.wechat-feedback__copy span{color:var(--text-secondary);font-size:.82rem;line-height:1.5}.wechat-feedback__code{display:inline-flex;align-items:center;gap:8px;width:fit-content;margin-top:4px;padding:6px 10px;border:1px solid rgba(99,102,241,.22);border-radius:8px;background:var(--primary-bg)}.wechat-feedback__code span{color:var(--text-secondary);font-size:.72rem}.wechat-feedback__code strong{color:var(--primary);font-size:.92rem;letter-spacing:0}.results-actions{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}.btn-feedback{min-width:148px}@media (max-width: 480px){.app-header__title{font-size:1rem}.app-header__subtitle{display:none}.chat-bubble{max-width:92%}.chat-bubble__content{padding:10px 14px}.result-card{padding:16px}.result-card__path{grid-template-columns:1fr;gap:2px}.results-actions{flex-direction:column}.results-actions .btn-primary,.results-actions .btn-secondary{width:100%}.wechat-feedback{align-items:center;max-width:none}}@media (min-width: 768px){.app-header__inner{padding:0}.app-chat{padding:20px 0}.app-input{padding:12px 0 24px}.app-results{padding:0 0 40px}}.proxy-settings{position:fixed;bottom:20px;right:20px;z-index:200}.proxy-settings__toggle{width:40px;height:40px;border-radius:50%;border:1px solid var(--border);background:var(--card-bg);font-size:1.2rem;cursor:pointer;box-shadow:var(--shadow-md);display:flex;align-items:center;justify-content:center;transition:transform .2s}.proxy-settings__toggle:hover{transform:scale(1.1)}.proxy-settings__panel{position:absolute;bottom:50px;right:0;width:280px;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow-lg)}.proxy-settings__label{font-size:.8rem;font-weight:600;color:var(--text);margin-bottom:8px}.proxy-settings__active{color:var(--success);font-size:.7rem}.proxy-settings__input{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:8px;font-size:.8rem;font-family:monospace;margin-bottom:10px}.proxy-settings__actions{display:flex;gap:6px;margin-bottom:8px}.btn-sm{padding:4px 12px;font-size:.75rem;border-radius:6px}.proxy-settings__hint{font-size:.65rem;color:var(--text-muted);line-height:1.5}