:root{--ink:#1a1a2e;--muted:#6b7280;--cream:#faf8f5;--sand:#f3ede5;--sunset:#f97316;--teal:#0d9488;--lime:#a3e635;--line:#e5e0d8;--card:#ffffff;--glow:#f9731615;--shadow:0 4px 24px rgba(0,0,0,.06);--shadow-lg:0 20px 60px rgba(0,0,0,.1);--radius:16px;--radius-sm:10px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--cream);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,'Noto Sans SC','PingFang SC',sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%}.nav{height:76px;padding:0 5.5vw;display:flex;align-items:center;justify-content:space-between;background:rgba(250,248,245,.85);backdrop-filter:blur(20px) saturate(1.4);-webkit-backdrop-filter:blur(20px) saturate(1.4);position:sticky;top:0;z-index:100;border-bottom:1px solid rgba(0,0,0,.04)}.brand{font-size:22px;font-weight:800;display:flex;align-items:center;gap:10px;letter-spacing:-.5px;color:var(--ink)}.brand-light{font-weight:450}.brand-mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--sunset),var(--lime));display:grid;place-items:center;font-size:15px;font-weight:800;color:#fff;box-shadow:0 2px 8px var(--glow)}.nav nav{display:flex;gap:32px;font-size:14px;font-weight:500;color:var(--muted)}.nav nav a{position:relative;padding:4px 0;transition:color .2s}.nav nav a:after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:2px;background:var(--sunset);transition:width .25s;border-radius:2px}.nav nav a:hover{color:var(--ink)}.nav nav a:hover:after{width:100%}.nav-actions{display:flex;align-items:center;gap:12px}.icon-btn,.menu-btn{border:0;background:none;font-size:22px;cursor:pointer;padding:8px;border-radius:10px;transition:background .2s}.icon-btn:hover,.menu-btn:hover{background:var(--sand)}.nav-login{font-size:13px;font-weight:600;border:1.5px solid var(--ink);padding:9px 18px;border-radius:99px;background:transparent;cursor:pointer;transition:all .25s;color:var(--ink)}.nav-login:hover{background:var(--ink);color:#fff}.menu-btn{display:none}.hero{min-height:620px;display:grid;grid-template-columns:1fr 1fr;max-width:1280px;margin:auto;padding:60px 5.5vw 80px;gap:40px;align-items:center}.eyebrow{font-size:11px;font-weight:700;letter-spacing:2.5px;color:#9ca3af;margin-bottom:20px;text-transform:uppercase}.eyebrow i{display:inline-block;background:var(--sunset);width:6px;height:6px;border-radius:50%;margin-right:8px;vertical-align:middle}.hero h1{font-size:clamp(40px,5vw,72px);line-height:1.08;letter-spacing:-3px;margin:0;font-weight:900;color:var(--ink)}.hero h1 em{font-style:normal;background:linear-gradient(135deg,var(--sunset),#eab308);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-copy>p{max-width:440px;line-height:1.8;color:var(--muted);margin:24px 0 32px;font-size:15px}.hero-actions{display:flex;align-items:center;gap:24px}.btn{border:0;border-radius:99px;padding:14px 28px;font-weight:600;font-size:14px;cursor:pointer;display:inline-flex;align-items:center;gap:8px;transition:all .25s;font-family:inherit}.btn-dark{background:var(--ink);color:#fff;box-shadow:0 4px 16px rgba(26,26,46,.2)}.btn-dark:hover{background:var(--sunset);transform:translateY(-2px);box-shadow:0 8px 28px rgba(249,115,22,.35)}.btn span,.text-link span{font-size:16px;transition:transform .25s}.btn:hover span{transform:translateX(4px)}.text-link{font-size:14px;font-weight:600;color:var(--muted);transition:color .25s;display:inline-flex;align-items:center;gap:6px}.text-link:hover{color:var(--sunset)}.text-link:hover span{transform:translateX(4px)}.hero-art{position:relative;min-height:420px;display:flex;align-items:center;justify-content:center}.hero-photo,.feature-image{width:100%;height:480px;border-radius:24px;background:linear-gradient(180deg,rgba(26,26,46,0) 30%,rgba(26,26,46,.5)),url('https://images.unsplash.com/photo-1500530855697-b586d89ba3ee?w=1200&q=85') center/cover;box-shadow:0 20px 60px rgba(0,0,0,.12);position:relative;overflow:hidden}.hero-photo:before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,var(--sunset)0%,transparent 50%,var(--teal)100%);opacity:.15;mix-blend-mode:overlay}.float-card{position:absolute;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:14px;padding:14px 18px;box-shadow:0 12px 40px rgba(0,0,0,.1);display:flex;align-items:center;gap:12px;border:1px solid rgba(255,255,255,.5);animation:float 4s ease-in-out infinite}.float-place{left:-20px;bottom:50px;animation-delay:0s}.float-place b{font-size:14px;font-weight:700;display:block}.float-place small{font-size:11px;color:var(--muted);margin-top:4px;display:block}.pin{color:var(--sunset);font-size:18px;line-height:1}.float-rating{right:-12px;top:30px;display:block;text-align:center;animation-delay:2s;padding:16px 20px}.float-rating strong{font-size:28px;font-weight:800;display:block;color:var(--ink);line-height:1}.float-rating span{color:#fbbf24;font-size:20px;display:block;margin:2px 0}.float-rating small{font-size:10px;color:var(--muted);display:block;margin-top:2px}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}.stats{background:var(--ink);color:#fff;display:grid;grid-template-columns:repeat(4,1fr);padding:44px 7vw;gap:20px;align-items:center}.stats strong{display:block;font-size:40px;font-weight:800;line-height:1.1;letter-spacing:-1px}.stats strong span{background:linear-gradient(135deg,var(--lime),var(--sunset));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stats small{color:#9ca3af;font-size:12px;font-weight:500;margin-top:4px;display:block}.stats-note{font-size:14px;line-height:1.8;color:#d1d5db;padding-left:20px;border-left:2px solid rgba(163,230,53,.3)}.stats-note b{background:linear-gradient(135deg,var(--lime),var(--sunset));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.routes-section{max-width:1280px;margin:auto;padding:100px 5.5vw}.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:36px}.section-head h2{font-size:42px;font-weight:900;letter-spacing:-2px;margin:0;line-height:1.1}.outline-link{font-size:13px;font-weight:600;color:var(--muted);display:inline-flex;align-items:center;gap:6px;padding-bottom:6px;border-bottom:1.5px solid var(--line);transition:all .25s}.outline-link:hover{color:var(--sunset);border-color:var(--sunset)}.filter-wrap{background:var(--card);border-radius:var(--radius);padding:20px 24px;margin-bottom:32px;box-shadow:var(--shadow);border:1px solid var(--line)}.filter-label{font-size:11px;font-weight:700;color:#9ca3af;text-transform:uppercase;letter-spacing:1px;margin-bottom:10px}.theme-label{margin-top:20px}.filters{display:flex;gap:8px;flex-wrap:wrap}.filter{border:1.5px solid var(--line);background:transparent;border-radius:99px;padding:8px 18px;color:var(--muted);cursor:pointer;font-size:13px;font-weight:500;transition:all .2s;font-family:inherit}.filter:hover{border-color:var(--sunset);color:var(--sunset)}.filter.active{background:var(--ink);color:#fff;border-color:var(--ink);box-shadow:0 2px 8px rgba(26,26,46,.15)}.filter.active:hover{background:var(--sunset);border-color:var(--sunset)}.route-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.route-card{background:var(--card);border-radius:var(--radius);overflow:hidden;cursor:pointer;transition:all .35s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow);border:1px solid var(--line)}.route-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:transparent}.route-cover{height:220px;background-size:cover;background-position:center;position:relative;overflow:hidden}.route-cover:after{content:'';position:absolute;inset:0;background:linear-gradient(transparent 40%,rgba(26,26,46,.85))}.route-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}.route-card:hover .route-cover img{transform:scale(1.05)}.route-days{position:absolute;z-index:2;top:14px;left:14px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-radius:99px;padding:6px 14px;font-size:12px;font-weight:700;color:var(--ink);box-shadow:0 2px 8px rgba(0,0,0,.08)}.route-info{position:absolute;z-index:2;bottom:16px;left:18px;color:white;right:18px}.route-info small{font-size:11px;opacity:.8;display:block;font-weight:500}.route-info h3{margin:6px 0 0;font-size:18px;font-weight:700;line-height:1.2;text-shadow:0 1px 4px rgba(0,0,0,.2)}.route-body{padding:18px 20px 20px}.route-body p{margin:0;color:var(--muted);font-size:13px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.route-tags{display:flex;gap:6px;margin-top:12px;flex-wrap:wrap}.route-tag{font-size:11px;font-weight:600;padding:5px 10px;background:rgba(163,230,53,.15);color:rgb(77,124,15);border-radius:99px;transition:background .2s}.route-tag:first-child:nth-last-child(2){background:rgba(249,115,22,.12);color:#c2410c}.route-tag:first-child:nth-last-child(3){background:rgba(13,148,136,.1);color:#0f766e}.loading{grid-column:1/-1;padding:80px;text-align:center;color:var(--muted);font-size:14px;display:flex;align-items:center;justify-content:center;gap:10px}.loading span{display:inline-block;width:20px;height:20px;border:2.5px solid var(--line);border-top-color:var(--sunset);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.feature{background:linear-gradient(180deg,var(--sand),var(--cream));display:grid;grid-template-columns:1fr 1fr;gap:8vw;padding:120px 10vw;align-items:center}.feature-image{height:500px;border-radius:24px 24px 24px 120px;background-image:linear-gradient(180deg,transparent 40%,rgba(26,26,46,.5)),url('https://images.unsplash.com/photo-1464822759023-fed622ff2c3b?w=1000&q=85');box-shadow:0 20px 60px rgba(0,0,0,.1)}.feature h2,.planner h2{font-size:42px;font-weight:900;letter-spacing:-2px;margin:0;line-height:1.1}.feature h2 em,.planner h2 em{font-style:normal;background:linear-gradient(135deg,var(--sunset),#eab308);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.feature-copy>p,.planner>div>p{color:var(--muted);line-height:1.8;max-width:450px;margin:20px 0 28px;font-size:15px}.feature-list{margin-top:20px}.feature-list>div{display:flex;gap:20px;padding:18px 0;border-bottom:1px solid var(--line);font-size:14px;font-weight:500;align-items:center}.feature-list>div:last-child{border:0}.feature-list b{font-size:28px;font-weight:800;color:var(--sunset);min-width:44px;background:linear-gradient(135deg,var(--sunset),#eab308);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.feature-list small{color:var(--muted);font-size:12px;font-weight:400;margin-top:4px;display:block}.planner{background:linear-gradient(135deg,#1a1a2e,#0d9488);color:#fff;display:grid;grid-template-columns:1fr 1fr;gap:10vw;padding:100px 10vw;position:relative;overflow:hidden}.planner:before{content:'';position:absolute;top:-50%;right:-20%;width:600px;height:600px;border-radius:50%;background:rgba(249,115,22,.08);pointer-events:none}.planner .eyebrow,.planner>div>p{color:rgba(255,255,255,.7)}.planner h2{color:#fff}#plannerForm{padding-top:24px;position:relative;z-index:1}.form-row{display:flex;align-items:center;gap:12px;margin-bottom:16px}.form-row input,.form-row select{background:rgba(255,255,255,.08);border:2px solid rgba(255,255,255,.2);color:#fff;padding:18px 22px;font-size:16px;flex:1;outline:0;border-radius:var(--radius-sm);font-family:inherit;transition:all .25s;box-shadow:0 2px 12px rgba(0,0,0,.1)}.form-row input::placeholder{color:rgba(255,255,255,.4)}.form-row input:focus,.form-row select:focus{border-color:rgba(255,255,255,.4);background:rgba(255,255,255,.12)}.form-row select option{color:var(--ink)}.btn-light{background:#fff;color:var(--ink);white-space:nowrap;box-shadow:0 4px 16px rgba(0,0,0,.15)}.btn-light:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.2)}.form-message{min-height:20px;font-size:12px;color:rgba(255,255,255,.7)!important;margin-top:8px}footer{background:var(--ink);color:#fff;display:flex;align-items:center;gap:35px;padding:40px 7vw;font-size:13px;border-top:1px solid rgba(255,255,255,.06)}footer p{color:#9ca3af;flex:1;margin:0}.modal{display:none;position:fixed;inset:0;z-index:200;align-items:center;justify-content:center;padding:20px}.modal.open{display:flex;animation:fadeIn .25s ease}@keyframes fadeIn{from{opacity:0}to{opacity:1}}.modal-backdrop{position:absolute;inset:0;background:rgba(26,26,46,.6);backdrop-filter:blur(4px)}.route-modal{position:relative;background:var(--card);width:min(720px,100%);max-height:85vh;overflow:auto;border-radius:var(--radius);padding:36px;box-shadow:0 30px 80px rgba(0,0,0,.2)}.modal-close{position:absolute;right:16px;top:14px;border:0;background:var(--sand);width:36px;height:36px;border-radius:50%;font-size:22px;cursor:pointer;display:grid;place-items:center;transition:all .2s;color:var(--muted);z-index:2}.modal-close:hover{background:var(--line);color:var(--ink)}.detail-cover{height:240px;border-radius:var(--radius-sm);background:center/cover;margin:-8px -8px 28px;position:relative;overflow:hidden}.route-modal h2{font-size:28px;font-weight:800;margin:8px 0 4px;letter-spacing:-.5px}.route-modal .eyebrow{margin-bottom:12px}.detail-day{border-bottom:1px solid var(--line);padding:18px 0}.detail-day:last-child{border:0}.detail-day h4{margin:0 0 6px;font-size:15px;font-weight:700;color:var(--ink)}.detail-day p{color:var(--muted);font-size:13px;margin:4px 0}.auth-modal{position:relative;background:var(--card);width:min(400px,100%);border-radius:var(--radius);padding:36px 30px;box-shadow:0 30px 80px rgba(0,0,0,.2)}.auth-tabs{display:flex;gap:0;margin-bottom:28px;background:var(--sand);border-radius:var(--radius-sm);padding:3px}.auth-tab{flex:1;padding:10px;border:0;background:transparent;font:600 14px inherit;cursor:pointer;color:var(--muted);border-radius:8px;transition:all .2s}.auth-tab.active{background:var(--card);color:var(--ink);box-shadow:0 1px 4px rgba(0,0,0,.06)}#authFormLogin input,#authFormRegister input{display:block;width:100%;padding:18px 20px;border:2px solid var(--line);border-radius:var(--radius-sm);font:16px inherit;margin-bottom:18px;outline:0;background:var(--card);transition:all .25s;box-shadow:0 2px 8px rgba(0,0,0,.04)}#authFormLogin input:focus,#authFormRegister input:focus{border-color:var(--sunset);box-shadow:0 0 0 3px rgba(249,115,22,.1)}#authFormLogin .btn,#authFormRegister .btn{width:100%;margin-top:4px;justify-content:center}.auth-divider{text-align:center;color:var(--muted);margin:20px 0 12px;font-size:12px;position:relative}.auth-divider:after,.auth-divider:before{content:'';position:absolute;top:50%;width:42%;height:1px;background:var(--line)}.auth-divider:before{left:0}.auth-divider:after{right:0}@media(max-width:900px){.hero,.feature,.planner{grid-template-columns:1fr;padding:50px 6vw 60px}.hero{padding-top:40px}.hero-art{min-height:340px}.hero-photo{height:360px}.float-place{left:0}.float-rating{right:0}.stats{grid-template-columns:repeat(2,1fr);padding:36px 7vw}.route-grid{grid-template-columns:1fr 1fr}.section-head h2{font-size:32px}.feature-image{height:360px;border-radius:20px 20px 20px 80px}.feature h2,.planner h2{font-size:32px}footer{flex-wrap:wrap;gap:16px;padding:32px 7vw}}@media(max-width:640px){.nav nav,.nav-login{display:none}.menu-btn{display:block}.route-grid{grid-template-columns:1fr}.route-cover{height:240px}.stats-note{grid-column:1/-1;padding-left:0;border-left:0;border-top:1px solid rgba(255,255,255,.1);padding-top:20px;margin-top:8px}.section-head{flex-direction:column;align-items:flex-start;gap:12px}.hero h1{font-size:38px}.hero-photo{height:300px}.float-place{left:10px;bottom:30px;padding:12px 14px}.float-rating{top:16px;padding:12px 16px}.filter-wrap{padding:16px 18px}}@media(prefers-reduced-motion:reduce){.route-card:hover{transform:none}.float-card{animation:none}}
/* ===== 页面切换 ===== */
.page-section{display:block}.page-section[style*="display:none"]{display:none}.nav-item{cursor:pointer}.nav-item.active{color:var(--ink)}.nav-item.active:after{width:100%!important}.page-header{padding:40px 0 24px}.page-header h2{font-size:32px;font-weight:800;margin:0;letter-spacing:-1px}.page-header .muted{color:var(--muted);font-size:14px;margin-top:6px}
/* ===== AI 规划页面（双栏布局） ===== */
.ai-plan-layout{display:flex;height:calc(100vh - 76px);overflow:hidden}.ai-plan-chat-panel{width:420px;min-width:380px;display:flex;flex-direction:column;background:var(--card);border-right:1px solid var(--line);flex-shrink:0}.ai-plan-chat-header{padding:20px 24px 12px;border-bottom:1px solid var(--line)}.ai-plan-chat-header h2{font-size:22px;font-weight:800;margin:0;letter-spacing:-.5px}.ai-plan-chat-header .muted{color:var(--muted);font-size:12px;margin-top:2px}.ai-chat-messages{flex:1;overflow-y:auto;padding:20px 20px 12px;scroll-behavior:smooth}.ai-chat-welcome{text-align:center;padding:60px 12px 40px}.ai-chat-welcome .welcome-icon{font-size:48px;margin-bottom:16px}.ai-chat-welcome h3{font-size:20px;font-weight:700;margin:0 0 8px;color:var(--ink)}.ai-chat-welcome p{color:var(--muted);font-size:13px;margin:0 0 20px}.welcome-examples{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}.example-chip{background:var(--sand);border:1.5px solid var(--line);border-radius:99px;padding:10px 20px;font-size:13px;font-weight:500;color:var(--muted);cursor:pointer;transition:all .2s;font-family:inherit}.example-chip:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px)}.ai-msg{margin-bottom:16px;display:flex}.ai-msg-user{justify-content:flex-end}.ai-msg-ai{justify-content:flex-start}.ai-msg-error{justify-content:center}.ai-msg-content{max-width:88%;padding:12px 16px;border-radius:14px;font-size:14px;line-height:1.65;word-break:break-word}.ai-msg-user .ai-msg-content{background:var(--ink);color:#fff;border-bottom-right-radius:4px}.ai-msg-ai .ai-msg-content{background:var(--sand);color:var(--ink);border-bottom-left-radius:4px}.ai-msg-error .ai-msg-content{background:#fef2f2;color:#dc2626;font-size:12px;text-align:center;max-width:90%}.ai-msg-ai.streaming .ai-msg-content:after{content:"▊";animation:aiBlink 1s infinite}@keyframes aiBlink{0%,100%{opacity:1}50%{opacity:0}}
.ai-msg-waiting{display:inline-flex;align-items:center;gap:8px;color:#6b7280;font-size:13.5px}
.ai-spin-dot{display:inline-block;width:12px;height:12px;border:2px solid #cbd5e1;border-top-color:var(--sunset);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}
.ai-table-row-card{background:rgba(0,0,0,.03);border:1px solid var(--line);border-radius:8px;padding:8px 12px;margin:6px 0;font-size:13px;line-height:1.5}
.ai-table-row-card strong{color:var(--ink);margin-right:4px}.ai-msg-content h1,.ai-msg-content h2,.ai-msg-content h3{margin:10px 0 5px;font-weight:700}.ai-msg-content h3{font-size:15px}.ai-msg-content ul,.ai-msg-content ol{padding-left:18px;margin:6px 0}.ai-msg-content li{margin:3px 0}.ai-msg-content strong{font-weight:700}.ai-msg-content code{background:rgba(0,0,0,.06);border-radius:4px;padding:2px 5px;font-size:12px;font-family:monospace}.ai-msg-content table{width:100%;border-collapse:collapse;margin:6px 0;font-size:12px}.ai-msg-content td,.ai-msg-content th{border:1px solid var(--line);padding:6px 10px;text-align:left}.ai-msg-content th{background:var(--sand);font-weight:600}.ai-msg-content .spots-list{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0}.ai-msg-content .spot-name{display:inline-block;background:var(--cream);border:1px solid var(--line);border-radius:6px;padding:4px 10px;font-size:12px;font-weight:500;color:var(--ink)}.ai-chat-input-bar{border-top:1px solid var(--line);padding:12px 16px 10px;background:var(--card)}.ai-chat-input-wrap{display:flex;gap:10px;align-items:flex-end;background:var(--cream);border:2px solid var(--line);border-radius:12px;padding:6px 6px 6px 14px;transition:border-color .2s}.ai-chat-input-wrap:focus-within{border-color:var(--sunset);box-shadow:0 0 0 3px rgba(249,115,22,.08)}.ai-chat-input-wrap textarea{flex:1;border:0;background:transparent;font-size:14px;font-family:inherit;outline:0;resize:none;line-height:1.5;color:var(--ink);max-height:100px;padding:5px 0}.ai-chat-input-wrap textarea::placeholder{color:#9ca3af}.btn-send{width:40px;height:40px;border-radius:50%;border:0;background:var(--ink);color:#fff;font-size:18px;font-weight:700;cursor:pointer;display:grid;place-items:center;transition:all .2s;flex-shrink:0;line-height:1}.btn-send:hover{background:var(--sunset);transform:scale(1.05)}.btn-send:disabled{background:var(--line);color:#9ca3af;cursor:not-allowed;transform:none}.ai-chat-input-footer{display:flex;justify-content:space-between;align-items:center;margin-top:6px;padding:0 2px}.ai-chat-input-footer .muted{font-size:11px;color:#9ca3af}.btn-text{background:transparent;border:0;color:var(--muted);font-size:12px;font-weight:500;cursor:pointer;padding:4px 10px;border-radius:6px;transition:all .2s;font-family:inherit}.btn-text:hover{background:var(--sand);color:var(--ink)}/* ===== 地图面板 ===== */.ai-plan-map-panel{flex:1;position:relative;background:#f0f0f0}.ai-plan-map{width:100%;height:100%}.ai-plan-legend{position:absolute;top:16px;right:16px;z-index:1000;background:rgba(255,255,255,.95);border-radius:10px;padding:10px 14px;box-shadow:0 2px 12px rgba(0,0,0,.12);max-width:160px}.ai-plan-legend .legend-item{display:flex;align-items:center;gap:8px;margin-bottom:5px;font-size:12px;color:#374151}.ai-plan-legend .legend-item:last-child{margin-bottom:0}.ai-plan-legend .legend-dot{width:12px;height:12px;border-radius:50%;flex-shrink:0;border:2px solid rgba(255,255,255,.8)}.ai-plan-route-info{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);z-index:1000;background:rgba(255,255,255,.95);border-radius:12px;padding:12px 20px;box-shadow:0 4px 20px rgba(0,0,0,.15)}.route-info-header{display:flex;align-items:center;gap:16px}.route-info-title{font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap}
.route-info-actions{display:flex;gap:10px;margin-top:10px;justify-content:center;flex-wrap:wrap}.route-info-actions .btn{padding:8px 16px;font-size:13px}
/* ===== 高德点位卡片 ===== */
.amap-spot-card{position:relative;width:132px;background:#fff;border-radius:12px;box-shadow:0 4px 16px rgba(0,0,0,.18);overflow:visible;padding-bottom:6px;border:1px solid rgba(0,0,0,.05);font-family:-apple-system,BlinkMacSystemFont,'Noto Sans SC','PingFang SC',sans-serif}.amap-spot-card:after{content:'';position:absolute;left:50%;bottom:-7px;transform:translateX(-50%);border:7px solid transparent;border-top-color:#fff;border-bottom-width:0}.amap-spot-photo{width:100%;height:74px;overflow:hidden;background:var(--sand);border-radius:11px 11px 0 0;display:flex;align-items:center;justify-content:center;position:relative}.amap-spot-photo img{width:100%;height:100%;object-fit:cover;display:block}.amap-spot-photo.amap-noimg span{font-size:26px}.amap-spot-name{font-size:11.5px;font-weight:600;color:#1a1a2e;text-align:center;line-height:1.35;padding:4px 6px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.amap-spot-badge{position:absolute;top:-6px;left:-4px;min-width:20px;height:20px;padding:0 5px;border-radius:99px;color:#fff;font-size:10.5px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px rgba(0,0,0,.25);border:1.5px solid #fff}
/* ===== AI 向导步骤条 ===== */
.ai-wizard-steps{display:flex;align-items:center;padding:10px 18px 8px;gap:2px;border-bottom:1px solid var(--line);background:var(--cream);overflow-x:auto}.ai-wiz-step{display:flex;align-items:center;gap:5px;font-size:11px;font-weight:600;color:#9ca3af;white-space:nowrap;padding:3px 2px}.ai-wiz-step i{display:inline-flex;width:18px;height:18px;border-radius:50%;background:#e5e0d8;color:#9ca3af;font-style:normal;font-size:10px;align-items:center;justify-content:center;font-weight:700;transition:all .2s}.ai-wiz-step.active{color:var(--ink)}.ai-wiz-step.active i{background:var(--sunset);color:#fff;box-shadow:0 0 0 3px rgba(249,115,22,.15)}.ai-wiz-step.done{color:var(--teal)}.ai-wiz-step.done i{background:var(--teal);color:#fff}.ai-wiz-line{flex:0 0 10px;height:1.5px;background:var(--line);margin:0 3px;min-width:6px}
/* ===== 偏好面板 ===== */
.ai-pref-panel{background:var(--cream);border:1.5px solid var(--line);border-radius:12px;padding:14px 14px 12px;margin-bottom:10px;max-height:240px;overflow-y:auto}.ai-pref-head{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:10px}.ai-pref-step{font-size:10px;font-weight:800;letter-spacing:1.5px;color:var(--sunset);border:1px solid rgba(249,115,22,.4);padding:2px 8px;border-radius:99px}.ai-pref-head b{font-size:13px;color:var(--ink)}.ai-pref-tip{font-size:11px;color:var(--muted);margin-left:auto}.ai-pref-row{display:flex;gap:10px;align-items:flex-start;margin-bottom:8px}.ai-pref-label{flex:0 0 58px;font-size:11px;font-weight:600;color:var(--muted);padding-top:7px}.ai-pref-chips{display:flex;flex-wrap:wrap;gap:6px}.wiz-chip{border:1.5px solid var(--line);background:#fff;border-radius:99px;padding:5px 12px;font-size:12px;font-weight:500;color:var(--muted);cursor:pointer;transition:all .15s;font-family:inherit}.wiz-chip:hover{border-color:var(--sunset);color:var(--sunset)}.wiz-chip.on{background:var(--ink);border-color:var(--ink);color:#fff}.ai-pref-actions{display:flex;gap:8px;margin-top:8px;justify-content:flex-end}.ai-pref-actions .btn{padding:8px 16px;font-size:12.5px}
/* ===== 热门线路页面 ===== */
.hot-routes-page{max-width:1280px;margin:0 auto;padding:0 5.5vw 80px}
/* ===== 工具页面 ===== */
.tools-page{max-width:900px;margin:0 auto;padding:0 5.5vw 80px}.tools-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:8px}.tool-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:32px;cursor:pointer;transition:all .3s;box-shadow:var(--shadow)}.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}.tool-icon{font-size:36px;margin-bottom:16px}.tool-card h3{font-size:18px;font-weight:700;margin:0 0 6px;color:var(--ink)}.tool-card p{color:var(--muted);font-size:13px;margin:0;line-height:1.6}
/* ===== 个人中心页面 ===== */
.account-page{max-width:1180px;margin:0 auto;padding:44px 5.5vw 90px;min-height:calc(100vh - 180px)}.account-guest{max-width:520px;margin:80px auto;text-align:center;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:52px 44px;box-shadow:var(--shadow)}.account-guest .guest-icon{font-size:52px;line-height:1;margin-bottom:16px}.account-guest h2{font-size:24px;font-weight:800;margin:0 0 10px;letter-spacing:-.5px}.account-guest p{color:var(--muted);font-size:14px;line-height:1.7;margin:0 0 28px}.guest-actions{display:flex;flex-direction:column;gap:16px;align-items:center}.guest-actions .btn{padding:14px 40px}.guest-actions .text-link{font-size:13px}
.account-main{display:block}.account-hero{background:linear-gradient(135deg,#1a1a2e,#0d9488);border-radius:20px;padding:34px 38px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;box-shadow:0 18px 44px rgba(26,26,46,.18);margin-bottom:26px}.account-hero-left{display:flex;align-items:center;gap:20px;min-width:0}.account-avatar{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,var(--sunset),#eab308);color:#fff;font-size:30px;font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden;box-shadow:0 6px 18px rgba(0,0,0,.22);border:3px solid rgba(255,255,255,.25)}.account-avatar img{width:100%;height:100%;object-fit:cover}.account-avatar-lg{width:88px;height:88px;font-size:34px}.account-hero-info{min-width:0}.account-name-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.account-name-row h2{margin:0;font-size:24px;font-weight:800;letter-spacing:-.5px;color:#fff}.account-id{background:rgba(255,255,255,.16);border-radius:99px;padding:3px 12px;font-size:11px;color:rgba(255,255,255,.85);font-weight:500}.account-bio{margin:6px 0 0;font-size:13px;color:rgba(255,255,255,.72)}.account-stats{display:flex;gap:0;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:10px 6px;backdrop-filter:blur(8px)}.astat{text-align:center;padding:8px 26px;position:relative}.astat+.astat{border-left:1px solid rgba(255,255,255,.15)}.astat b{display:block;font-size:26px;font-weight:800;line-height:1.1}.astat span{font-size:11px;color:rgba(255,255,255,.7);display:block;margin-top:4px}.astat-points{padding-right:34px}.checkin-btn{position:absolute;top:6px;right:8px;background:var(--lime);color:#14221d;border:0;border-radius:99px;font-size:11px;font-weight:700;padding:3px 10px;cursor:pointer;transition:all .2s}.checkin-btn:hover{transform:scale(1.08);filter:brightness(1.05)}.checkin-btn.done{background:rgba(163,230,53,.25);color:rgba(255,255,255,.85);cursor:default}
.account-entries{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-bottom:34px}.aentry{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 8px;display:flex;flex-direction:column;align-items:center;gap:10px;cursor:pointer;font-family:inherit;transition:all .25s;box-shadow:var(--shadow)}.aentry:hover{transform:translateY(-4px);border-color:transparent;box-shadow:var(--shadow-lg)}.aentry-icon{font-size:26px;line-height:1}.aentry-label{font-size:13px;font-weight:600;color:var(--ink)}.aentry-danger .aentry-label{color:#dc2626}.aentry-danger:hover{border-color:#fecaca;background:#fef2f2}.account-section{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px 28px;box-shadow:var(--shadow);margin-bottom:24px}.acc-sec-head{display:flex;align-items:baseline;justify-content:space-between;gap:14px;margin-bottom:18px;flex-wrap:wrap}.acc-sec-head h3{margin:0;font-size:18px;font-weight:800;letter-spacing:-.3px}.acc-sec-count{font-size:12px;color:var(--muted);background:var(--sand);padding:3px 12px;border-radius:99px}
.pref-options{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}.pref-chip{border:1.5px solid var(--line);background:var(--cream);border-radius:99px;padding:9px 18px;font-size:13px;font-weight:500;color:var(--muted);cursor:pointer;transition:all .2s;font-family:inherit}.pref-chip:hover{border-color:var(--teal);color:var(--teal)}.pref-chip.active{background:var(--teal);border-color:var(--teal);color:#fff;box-shadow:0 4px 12px rgba(13,148,136,.25)}.pref-save{margin-top:4px}.profile-form{max-width:460px}.profile-avatar-row{display:flex;align-items:center;gap:22px;margin-bottom:26px}.profile-field{margin-bottom:18px}.profile-field label{display:block;font-size:12px;font-weight:600;color:var(--muted);margin-bottom:7px}.profile-field input{width:100%;padding:13px 16px;border:1.5px solid var(--line);border-radius:12px;font-size:15px;font-family:inherit;outline:0;background:var(--card);color:var(--ink);transition:border-color .2s}.profile-field input:focus{border-color:var(--teal);box-shadow:0 0 0 3px rgba(13,148,136,.1)}.profile-field input:disabled{background:var(--cream);color:#9ca3af;cursor:not-allowed}.btn-sm{padding:10px 20px;font-size:13px;border:1.5px solid var(--line)}.form-hint{font-size:11px;margin-top:8px}.points-ledger{max-width:760px}.ledger-row{display:flex;align-items:center;justify-content:space-between;padding:13px 4px;border-bottom:1px solid var(--line);font-size:13px}.ledger-row:last-child{border-bottom:0}.ledger-desc{display:flex;align-items:center;gap:10px}.ledger-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.ledger-time{color:#9ca3af;font-size:11px}.ledger-amt{font-weight:700}.ledger-amt.plus{color:var(--teal)}.ledger-amt.minus{color:#dc2626}
/* ===== 移动端适配 ===== */
@media(max-width:900px){.ai-plan-chat{min-height:400px;border-radius:12px}.ai-chat-messages{max-height:45vh;padding:16px 18px}.ai-msg-content{max-width:90%;font-size:14px;padding:12px 16px}.tools-grid{grid-template-columns:1fr}}
@media(max-width:640px){.ai-plan-chat{min-height:350px;border-radius:0;border-left:0;border-right:0}.ai-plan-page{padding:0}.ai-plan-header{padding:20px 5.5vw 12px}.ai-chat-messages{max-height:40vh}.ai-chat-input-bar{padding:12px 5.5vw}.ai-chat-welcome{padding:40px 16px 30px}.welcome-examples{gap:8px}.example-chip{padding:10px 18px;font-size:13px}}

/* ===== 个人中心响应式 ===== */
@media(max-width:1100px){.account-entries{grid-template-columns:repeat(3,1fr)}}
@media(max-width:860px){.account-hero{flex-direction:column;align-items:flex-start;padding:26px 22px}.account-stats{width:100%;justify-content:space-around}.account-entries{grid-template-columns:repeat(3,1fr)}.account-avatar{width:62px;height:62px;font-size:26px}.account-avatar-lg{width:78px;height:78px}}
@media(max-width:560px){.account-entries{grid-template-columns:repeat(2,1fr)}.astat{padding:8px 14px}.astat-points{padding-right:30px}.account-section{padding:20px 16px}}

/* 提示 Toast */
.toast-msg{position:fixed;left:50%;bottom:48px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;font-size:13px;padding:12px 26px;border-radius:99px;box-shadow:0 12px 32px rgba(0,0,0,.28);opacity:0;transition:all .3s;z-index:500;pointer-events:none;max-width:80vw;text-align:center}.toast-msg.show{opacity:1;transform:translateX(-50%) translateY(0)}
/* 导航栏已登录 */
.nav-login.logged-in{display:inline-flex;align-items:center;gap:6px;border-color:var(--teal);color:var(--teal)}.nav-login.logged-in:hover{background:var(--teal);color:#fff}


/* ===== 完整行程偏好表单样式（现代左右双栏网格，完美利用 PC 大屏） ===== */
.pref-form-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;width:100%;align-items:start}
.pref-col-left,.pref-col-right{display:flex;flex-direction:column}
.pref-group-box{background:#f8fafc;border:1px solid #e2e8f0;border-radius:18px;padding:22px 24px;box-shadow:0 2px 10px rgba(0,0,0,.02);transition:box-shadow .2s}
.pref-group-box:hover{box-shadow:0 6px 20px rgba(0,0,0,.04)}
.pref-group-title{font-size:15px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:10px;margin-bottom:18px}
.pref-bar{width:4px;height:16px;border-radius:2px;background:#2563eb}
.pref-bar.green{background:#10b981}
.pref-bar.amber{background:#f59e0b}
.pref-field-row{margin-bottom:16px}
.pref-field-row:last-child{margin-bottom:0}
.pref-field-label{display:block;font-size:12.5px;font-weight:600;color:#64748b;margin-bottom:8px}
.pref-chips{display:flex;flex-wrap:wrap;gap:8px}
.pref-chip-item{background:#ffffff;border:1.5px solid #e2e8f0;border-radius:99px;padding:7px 16px;font-size:13px;font-weight:500;color:#475569;cursor:pointer;transition:all .18s;user-select:none}
.pref-chip-item:hover{border-color:#3b82f6;color:#1d4ed8;background:#eff6ff}
.pref-chip-item.active{background:#2563eb;border-color:#2563eb;color:#ffffff;font-weight:600;box-shadow:0 3px 10px rgba(37,99,235,.28)}
.pref-chips-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.pref-interest-item{background:#ffffff;border:1.5px solid #e2e8f0;border-radius:12px;padding:12px 14px;font-size:13.5px;font-weight:500;color:#475569;cursor:pointer;transition:all .18s;text-align:center;user-select:none}
.pref-interest-item:hover{border-color:#10b981;color:#047857;background:#ecfdf5}
.pref-interest-item.active{background:#10b981;border-color:#10b981;color:#ffffff;font-weight:600;box-shadow:0 3px 10px rgba(16,185,129,.25)}
.pref-slider-head{display:flex;justify-content:space-between;align-items:baseline}
.pref-slider-val{font-size:13.5px;font-weight:700;color:#2563eb}
.pref-slider-wrap{margin-top:4px}
.pref-range-slider{width:100%;height:6px;accent-color:#2563eb;cursor:pointer}
.pref-slider-ticks{display:flex;justify-content:space-between;font-size:11.5px;color:#94a3b8;margin-top:2px}
.pref-textarea{width:100%;box-sizing:border-box;border:1.5px solid #e2e8f0;border-radius:12px;padding:12px 16px;font-size:13.5px;font-family:inherit;color:var(--ink);background:#ffffff;outline:none;resize:vertical;transition:border-color .2s}
.pref-textarea:focus{border-color:#f59e0b;box-shadow:0 0 0 3px rgba(245,158,11,.12)}
.pref-actions-box{margin-top:20px}
.pref-save-btn{width:100%;padding:14px;font-size:15px;font-weight:700;justify-content:center;border-radius:12px;background:#2563eb;color:#fff;border:none;cursor:pointer;transition:all .2s;box-shadow:0 4px 14px rgba(37,99,235,.28)}
.pref-save-btn:hover{background:#1d4ed8;transform:translateY(-1px);box-shadow:0 6px 20px rgba(37,99,235,.35)}

@media(max-width:960px){
  .pref-form-grid{grid-template-columns:1fr;gap:20px}
}

/* ===== 路线详情大弹窗（左侧路书+右侧地图与POI） ===== */
.route-modal-wide{width:min(1180px,94vw);max-height:88vh;padding:0;display:flex;flex-direction:column;overflow:hidden}
.detail-modal-layout{display:grid;grid-template-columns:460px 1fr;height:82vh;min-height:540px;overflow:hidden}
.detail-left-pane{overflow-y:auto;padding:28px 30px;background:#fff;border-right:1px solid var(--line)}
.detail-right-pane{position:relative;background:#f3f4f6;display:flex;flex-direction:column}
.detail-map-wrap{width:100%;height:100%;position:relative}
.detail-map-canvas{width:100%;height:100%}
.detail-modal-cover{height:180px;border-radius:12px;background:center/cover no-repeat;margin-bottom:18px;position:relative;box-shadow:0 4px 16px rgba(0,0,0,.08)}
.detail-modal-title{font-size:22px;font-weight:800;color:var(--ink);margin:0 0 6px;line-height:1.25}
.detail-modal-route{font-size:13px;font-weight:600;color:var(--sunset);margin:0 0 16px;display:flex;align-items:center;gap:6px}
.detail-day-item{background:#faf8f5;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin-bottom:12px;transition:border-color .2s}
.detail-day-item:hover{border-color:var(--sunset)}
.detail-day-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.detail-day-badge{background:var(--ink);color:#fff;font-size:11px;font-weight:700;padding:2px 8px;border-radius:99px}
.detail-day-header h4{margin:0;font-size:14.5px;font-weight:700;color:var(--ink)}
.detail-day-summary{font-size:12.5px;color:var(--muted);line-height:1.5;margin:0 0 8px}
.detail-day-spots{display:flex;flex-wrap:wrap;gap:6px}
.detail-spot-chip{background:#fff;border:1px solid #e5e7eb;border-radius:6px;padding:3px 8px;font-size:11.5px;font-weight:500;color:var(--ink);cursor:pointer;transition:all .15s}
.detail-spot-chip:hover{background:var(--sand);border-color:var(--sunset);color:var(--sunset)}
.detail-map-legend{position:absolute;top:16px;right:16px;z-index:10;background:rgba(255,255,255,.94);backdrop-filter:blur(6px);border-radius:8px;padding:8px 12px;box-shadow:0 2px 10px rgba(0,0,0,.1);font-size:11.5px}
.detail-map-legend-item{display:flex;align-items:center;gap:6px;margin-bottom:4px}
.detail-map-legend-item:last-child{margin-bottom:0}
.detail-map-legend-dot{width:10px;height:10px;border-radius:50%}
.detail-map-count{position:absolute;bottom:16px;left:16px;z-index:10;background:rgba(26,26,46,.85);color:#fff;backdrop-filter:blur(6px);border-radius:99px;padding:6px 14px;font-size:12px;font-weight:600}

@media(max-width:900px){
  .detail-modal-layout{grid-template-columns:1fr;grid-template-rows:320px 1fr;height:85vh}
  .detail-right-pane{order:-1;height:260px}
}