:root{--bg: #14110d;--surface: #1b1712;--surface-2: #241e17;--surface-hover:#2d2519;--fg: #f5efe6;--fg-soft: #c9b99f;--muted: #a19582;--muted-2: #6b6253;--disabled: #5d5851;--border: rgba(245, 239, 230, .08);--border-strong: rgba(245, 239, 230, .16);--border-glow: rgba(217, 169, 71, .2);--accent: #d9a947;--accent-bright: #e7b95e;--accent-deep: #bc8a31;--accent-soft: rgba(217, 169, 71, .14);--accent-fg: #1a140a;--danger: #e06c6c;--font-display: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;--font-body: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;--r-sm: 6px;--r-md: 10px;--r-lg: 14px;--sidebar-w: 250px;--ease: cubic-bezier(.16, 1, .3, 1);color-scheme:dark}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--fg);font-family:var(--font-body);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{font-family:inherit}img{display:block;max-width:100%}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:10px;border:2px solid var(--bg)}::-webkit-scrollbar-thumb:hover{background:var(--muted-2)}.app-root{display:flex;flex-direction:column;height:100vh;overflow:hidden}.app-shell{display:flex;flex:1;min-height:0;overflow:hidden}.site-footer{flex-shrink:0;display:flex}.footer-spacer{width:var(--sidebar-w);flex-shrink:0;background:var(--surface);border-right:1px solid var(--border)}.footer-content{flex:1;background:var(--bg);display:flex;justify-content:center;align-items:center;gap:16px;padding:10px 16px;font-size:12.5px;color:var(--muted)}.site-footer a{color:var(--muted);text-decoration:none;display:inline-flex;align-items:center;gap:4px;transition:color .15s var(--ease)}.site-footer a:hover{color:var(--fg-soft)}.site-footer .beian-ga img{width:14px;height:14px;opacity:.85}.sidebar{width:var(--sidebar-w);flex-shrink:0;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column}.sidebar-head{padding:20px 18px 12px}.sidebar-brand{font-family:var(--font-display);font-size:15px;font-weight:600;letter-spacing:-.01em;display:flex;align-items:center;gap:9px;cursor:pointer;transition:opacity .15s var(--ease)}.sidebar-brand:hover{opacity:.75}.sidebar-brand .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px #e0a45899}.new-btn{width:100%;margin-top:14px;padding:10px 12px;background:var(--accent-soft);color:var(--accent);border:1px solid transparent;border-radius:8px;font-size:13.5px;font-weight:500;cursor:pointer;transition:background .15s var(--ease),border-color .15s var(--ease)}.new-btn:hover{background:#e0a4582e;border-color:var(--border-strong)}.conv-list{flex:1;overflow-y:auto;padding:6px 10px 12px}.conv-item{display:flex;align-items:center;gap:4px;padding:9px 12px;margin:2px 0;border-radius:7px;color:var(--muted);font-size:13.5px;cursor:pointer;transition:background .12s var(--ease),color .12s var(--ease)}.conv-title{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.del-btn{flex-shrink:0;width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;background:transparent;border:none;color:var(--muted-2);font-size:12px;cursor:pointer;border-radius:5px;opacity:0;transition:opacity .12s var(--ease),background .12s var(--ease),color .12s var(--ease)}.conv-item:hover .del-btn,.conv-item.active .del-btn{opacity:1}.del-btn:hover{background:#e06c6c29;color:var(--danger)}.conv-item:hover{background:var(--surface-2);color:var(--fg)}.conv-item.active{background:var(--surface-2);color:var(--fg);box-shadow:inset 2px 0 0 var(--accent)}.sidebar-foot{padding:10px 14px;border-top:1px solid var(--border)}.sidebar-user{display:flex;align-items:center;justify-content:space-between;gap:8px}.sidebar-user-name{font-size:13px;color:var(--fg-soft);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.logout-btn{background:transparent;border:1px solid var(--border-strong);color:var(--muted);font-size:12px;padding:3px 10px;border-radius:var(--r-sm);cursor:pointer;font-family:inherit;transition:color .15s var(--ease),border-color .15s var(--ease);flex-shrink:0}.logout-btn:hover{color:var(--fg);border-color:var(--border-glow)}.sidebar-meta{font-size:11px;color:var(--muted-2);margin-top:6px}.main-area{flex:1;display:flex;flex-direction:column;min-width:0}.tab-bar{display:flex;gap:2px;padding:0 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var(--border-glow);border-bottom-left-radius:4px}.bubble.error{background:#e06c6c14;color:var(--danger);border:1px solid rgba(224,108,108,.22)}.bubble-img{border-radius:var(--r-md);margin-top:10px;border:1px solid var(--border)}.assistant-msg{position:relative;margin:14px 0;padding-left:34px}.ai-badge{position:absolute;left:0;top:6px;width:26px;height:26px;border-radius:var(--r-sm);background:var(--accent-soft);color:var(--accent);border:1px solid var(--border-glow);font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}.assistant-images{margin-top:8px}.composer{background:var(--surface);border:1px solid var(--border-glow);border-radius:var(--r-lg);box-shadow:0 8px 32px #00000059,inset 0 1px #ffffff08;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);overflow:hidden}.composer:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #d9a94724,0 8px 32px #00000059}.composer.quiet{border-color:var(--border-strong);box-shadow:none}.composer.quiet:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px #d9a9471f}.composer-input-area{padding:14px 18px 6px}.composer-input-area .attach-preview{margin-bottom:8px}.ta-row{position:relative}.composer-icon{position:absolute;left:0;top:2px;color:var(--accent);pointer-events:none}.composer-icon svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}.ta{width:100%;background:transparent;border:none;color:var(--fg);font-family:inherit;font-size:16px;line-height:1.6;resize:none;outline:none;padding-left:24px}.ta.chat-ta{font-size:15px}.ta::placeholder{color:var(--muted-2)}.composer-toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:8px 14px;border-top:1px solid var(--border);font-size:13px;color:var(--muted)}.pg{display:inline-flex;align-items:center;gap:6px}.chip{padding:4px 11px;border-radius:var(--r-sm);border:1px solid var(--border-strong);background:transparent;color:var(--fg-soft);font-size:13px;cursor:pointer;font-family:inherit;transition:all .18s var(--ease)}.chip:hover:not(:disabled){color:var(--fg);border-color:var(--border-glow)}.chip.active{background:var(--accent);color:var(--accent-fg);border-color:transparent;font-weight:500}.chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.chip:disabled{opacity:.5;cursor:not-allowed}.adv-dropdown,.tpl-dropdown{position:relative}.adv-menu,.tpl-menu{position:absolute;bottom:100%;left:0;margin-bottom:6px;background:var(--surface-2);border:1px solid var(--border-glow);border-radius:var(--r-sm);padding:10px;z-index:5;box-shadow:0 6px 20px #00000080}.adv-menu{min-width:190px}.tpl-menu{min-width:110px;padding:4px}.adv-menu label{font-size:12px;color:var(--muted);display:block;margin-bottom:4px}.seed-input{width:100%;padding:5px 8px;border-radius:var(--r-sm);border:1px solid var(--border-strong);background:var(--bg);color:var(--fg);font-size:13px;font-family:inherit;outline:none}.tpl-item{padding:6px 10px;border-radius:4px;font-size:13px;color:var(--fg-soft);cursor:pointer;transition:all .12s var(--ease)}.tpl-item:hover{background:var(--accent-soft);color:var(--accent)}.send-btn{margin-left:auto;padding:8px 22px;border-radius:var(--r-md);background:var(--accent);color:var(--accent-fg);font-family:inherit;font-size:14px;font-weight:600;border:none;cursor:pointer;transition:background .15s var(--ease)}.send-btn:hover:not(:disabled){background:var(--accent-bright)}.send-btn:active:not(:disabled){background:var(--accent-deep)}.send-btn:disabled{opacity:.45;cursor:not-allowed}.send-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.attach-preview{position:relative;align-self:flex-start;padding:4px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-sm)}.attach-preview img{width:56px;height:56px;object-fit:cover;border-radius:5px;display:block}.attach-del{position:absolute;top:-6px;right:-6px;width:18px;height:18px;border-radius:50%;background:var(--surface-2);color:var(--fg);border:1px solid var(--border-strong);font-size:10px;line-height:1;cursor:pointer;transition:background .15s var(--ease)}.attach-del:hover{background:var(--danger);color:var(--fg);border-color:transparent}.composer-chat-wrap{padding:14px clamp(16px,6vw,64px) 20px;border-top:1px solid var(--border);background:var(--bg)}.composer-chat-wrap .composer{max-width:820px;margin:0 auto}.composer-chat-wrap .hint{font-size:11px;color:var(--muted-2);margin:6px auto 0;max-width:820px;text-align:right;opacity:0;transition:opacity .2s var(--ease)}.composer-chat-wrap:focus-within .hint{opacity:1}.welcome{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px;overflow-y:auto;background:radial-gradient(ellipse 60% 50% at 50% 38%,rgba(217,169,71,.045),transparent 70%)}.welcome-card{width:100%;max-width:720px}.welcome-title{font-family:var(--font-display);font-size:34px;font-weight:700;text-align:center;margin-bottom:10px;letter-spacing:-.02em}.welcome-sub{color:var(--fg-soft);text-align:center;margin-bottom:24px;font-size:15px}.style-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;align-items:center}.style-label{font-size:13px;color:var(--muted);margin-right:2px}.inspire{margin-top:24px}.inspire-label{font-size:13px;color:var(--muted);margin-bottom:10px}.inspire-row{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.inspire-card{padding:14px;border-radius:var(--r-md);background:var(--surface);border:1px solid var(--border);cursor:pointer;text-align:left;font-family:inherit;transition:all .2s var(--ease)}.inspire-card:hover:not(:disabled){transform:translateY(-2px);background:var(--surface-hover);border-color:var(--border-glow);box-shadow:0 6px 16px #0000004d}.inspire-card:disabled{opacity:.5;cursor:not-allowed;transform:none}.inspire-thumb{height:96px;border-radius:var(--r-sm);margin-bottom:10px;overflow:hidden;background:var(--surface-2)}.inspire-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .25s var(--ease)}.inspire-card:hover .inspire-thumb img{transform:scale(1.03)}.inspire-title{font-size:14px;color:var(--fg);font-weight:600;margin-bottom:3px}.inspire-style{font-size:12px;color:var(--muted)}.thinking{display:inline-flex;gap:5px;padding:6px 0}.thinking span{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:blink 1.4s infinite both}.thinking span:nth-child(2){animation-delay:.2s}.thinking span:nth-child(3){animation-delay:.4s}@keyframes blink{0%,80%,to{opacity:.2}40%{opacity:1}}.gallery{flex:1;overflow-y:auto;padding:30px clamp(16px,5vw,48px)}.gallery-inner{max-width:1120px;margin:0 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var(--ease)}.img-card:hover{transform:translateY(-2px);border-color:var(--border-strong)}.img-card img{width:100%;aspect-ratio:1;object-fit:cover;display:block}.img-actions{position:absolute;left:10px;right:10px;bottom:10px;display:flex;gap:6px;opacity:0;transition:opacity .2s var(--ease);z-index:2}.img-card:hover .img-actions{opacity:1}.img-act{padding:5px 10px;border-radius:var(--r-sm);background:#14110db8;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:var(--fg);font-size:12px;cursor:pointer;border:1px solid var(--border);text-decoration:none;display:inline-flex;align-items:center;gap:3px;font-family:inherit}.img-act:hover{background:#14110de6;border-color:var(--border-glow)}.img-act-icon{width:13px;height:13px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;vertical-align:-1px}.mobile-menu-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}.img-card-caption{padding:9px 12px;font-size:12.5px;color:var(--muted);line-height:1.5;border-top:1px solid var(--border);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.img-card.loading{aspect-ratio:1;display:flex;align-items:center;justify-content:center}.img-card.loading .spinner{width:28px;height:28px;border:2.5px solid var(--border-strong);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.img-card.generating{width:250px;height:250px;display:flex;align-items:center;justify-content:center;cursor:default;background:linear-gradient(135deg,var(--surface-2),var(--surface-hover));border-color:var(--border-glow)}.img-card.generating .img-ph-inner{color:var(--muted-2);font-size:13px;z-index:1}.img-card.generating:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(110deg,transparent 30%,rgba(217,169,71,.12) 50%,transparent 70%);animation:sweep 1.8s var(--ease) infinite}@keyframes sweep{0%{transform:translate(-100%)}to{transform:translate(100%)}}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0805eb;display:flex;align-items:center;justify-content:center;z-index:100;padding:32px;animation:fade-in .2s var(--ease)}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.lightbox img{max-width:90vw;max-height:82vh;border-radius:8px;box-shadow:0 24px 80px #0009}.lightbox-actions{position:fixed;top:24px;right:24px;display:flex;gap:10px}.lb-btn{padding:9px 16px;background:var(--surface-2);color:var(--fg);border:1px solid var(--border-strong);border-radius:8px;font-size:13.5px;cursor:pointer;transition:background .15s var(--ease)}.lb-btn:hover{background:var(--surface-hover)}.lb-btn.primary{background:var(--accent);color:var(--accent-fg);border-color:transparent}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0a0805b3;display:flex;align-items:center;justify-content:center;z-index:200;padding:20px;animation:fade-in .15s var(--ease)}.modal{background:var(--surface-2);border:1px solid var(--border-strong);border-radius:12px;padding:22px;max-width:380px;width:100%;box-shadow:0 24px 64px #00000080;animation:pop .15s var(--ease)}@keyframes pop{0%{transform:scale(.96);opacity:0}to{transform:scale(1);opacity:1}}.modal-title{font-family:var(--font-display);font-size:16px;font-weight:600;color:var(--fg);margin-bottom:8px}.modal-message{font-size:14px;color:var(--muted);line-height:1.6;margin-bottom:20px}.modal-actions{display:flex;justify-content:flex-end;gap:8px}.modal-btn{padding:8px 16px;background:var(--surface);color:var(--fg);border:1px solid var(--border-strong);border-radius:8px;font-size:13.5px;cursor:pointer;transition:background .15s var(--ease)}.modal-btn:hover{background:var(--surface-hover)}.modal-btn.primary{background:var(--accent);color:var(--accent-fg);border-color:transparent}.modal-btn.primary.danger{background:var(--danger);color:var(--fg)}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse 60% 50% at 50% 40%,rgba(217,169,71,.06),transparent 70%),var(--bg);padding:24px}.login-loading{color:var(--muted);font-size:14px}.login-card{width:100%;max-width:360px;background:var(--surface);border:1px solid var(--border-glow);border-radius:var(--r-lg);padding:32px 28px;box-shadow:0 16px 48px #0006}.login-brand{display:flex;align-items:center;gap:9px;font-family:var(--font-display);font-size:14px;font-weight:600;color:var(--accent);margin-bottom:18px}.login-brand .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px #e0a45899}.login-title{font-family:var(--font-display);font-size:24px;font-weight:700;margin-bottom:4px;letter-spacing:-.02em}.login-sub{color:var(--muted);font-size:13.5px;margin-bottom:22px}.login-field{display:block;margin-bottom:14px}.login-field span{display:block;font-size:12.5px;color:var(--muted);margin-bottom:5px}.login-field input{width:100%;padding:10px 12px;border-radius:var(--r-sm);border:1px solid var(--border-strong);background:var(--bg);color:var(--fg);font-size:14px;font-family:inherit;outline:none;transition:border-color .15s var(--ease)}.login-field input:focus{border-color:var(--accent)}.login-error{color:var(--danger);font-size:13px;margin-bottom:12px;padding:8px 10px;background:#e06c6c14;border:1px solid rgba(224,108,108,.22);border-radius:var(--r-sm)}.login-btn{width:100%;padding:11px;border-radius:var(--r-md);background:var(--accent);color:var(--accent-fg);border:none;font-size:14.5px;font-weight:600;cursor:pointer;font-family:inherit;transition:background .15s var(--ease)}.login-btn:hover:not(:disabled){background:var(--accent-bright)}.login-btn:disabled{opacity:.5;cursor:not-allowed}.quota-banner{display:flex;align-items:center;justify-content:center;gap:14px;padding:10px 16px;background:#e06c6c1a;border-bottom:1px solid rgba(224,108,108,.25);color:var(--danger);font-size:13.5px}.quota-retry{padding:4px 12px;border-radius:var(--r-sm);background:transparent;border:1px solid rgba(224,108,108,.4);color:var(--danger);font-size:12.5px;cursor:pointer;font-family:inherit;transition:background .15s var(--ease)}.quota-retry:hover{background:#e06c6c26}.trash-panel{flex:1;overflow-y:auto;padding:24px clamp(16px,5vw,48px)}.trash-head{display:flex;align-items:center;justify-content:space-between;max-width:720px;margin:0 auto 4px}.trash-title{font-family:var(--font-display);font-size:24px;font-weight:600;letter-spacing:-.02em}.trash-back{background:transparent;border:none;color:var(--muted);font-size:13.5px;cursor:pointer;font-family:inherit}.trash-back:hover{color:var(--fg)}.trash-sub{color:var(--muted);font-size:13.5px;max-width:720px;margin:0 auto 22px}.trash-empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;padding:40px 20px;max-width:720px;margin:0 auto;text-align:center}.trash-empty-icon{opacity:.4}.trash-empty-icon svg{width:40px;height:40px;fill:none;stroke:var(--muted-2);stroke-width:1.4;stroke-linejoin:round;stroke-linecap:round}.trash-empty-title{font-size:18px;color:var(--fg);font-weight:600}.trash-empty-desc{font-size:13px;color:var(--muted)}.trash-empty-btn{margin-top:8px;padding:8px 18px;border-radius:var(--r-md);background:transparent;border:1px solid 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var(--ease)}.trash-act.restore{color:var(--accent)}.trash-act.restore:hover{background:var(--accent-soft);border-color:var(--border-glow)}.trash-act.purge{color:var(--danger)}.trash-act.purge:hover{background:#e06c6c1f;border-color:#e06c6c4d}.trash-link{background:transparent;border:none;color:var(--muted-2);font-size:12px;cursor:pointer;font-family:inherit;padding:0;display:block;margin-bottom:4px}.trash-link:hover{color:var(--fg-soft)}.mobile-topbar{display:none}@media (max-width: 768px){.footer-spacer{display:none}.mobile-topbar{display:flex;align-items:center;gap:12px;padding:10px 14px;background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0}.mobile-menu-btn{background:transparent;border:none;color:var(--fg);font-size:20px;cursor:pointer;padding:0;font-family:inherit}.mobile-brand{font-weight:600;color:var(--fg-soft);font-size:15px;cursor:pointer}.sidebar{position:fixed;top:0;left:0;bottom:0;z-index:50;transform:translate(-100%);transition:transform .25s var(--ease)}.sidebar.mobile-open{transform:translate(0);box-shadow:4px 0 24px #0006}.sidebar-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:40}.message-list{padding:16px}.composer-chat-wrap{padding:10px 12px 14px}.message-list-inner,.composer-chat-wrap .composer{max-width:100%}.inspire-row{grid-template-columns:repeat(2,1fr)}.gallery-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.gallery{padding:16px}.welcome-title{font-size:26px}.welcome{padding:16px;justify-content:flex-start}.trash-panel{padding:16px}.bubble{max-width:80%}}@media (max-width: 480px){.inspire-row{grid-template-columns:1fr}}@media (min-width: 769px) and (max-width: 1024px){:root{--sidebar-w: 210px}}.gallery-continue{position:absolute;left:10px;bottom:10px;z-index:2;padding:5px 10px;border-radius:var(--r-sm);background:#14110db8;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:var(--fg);font-size:12px;cursor:pointer;border:1px solid var(--border);opacity:0;transition:opacity .2s var(--ease);font-family:inherit}.gallery-item:hover .gallery-continue{opacity:1}.gallery-continue:hover{background:#14110de6;border-color:var(--border-glow)}.gallery-ratio{position:absolute;top:6px;right:6px;z-index:2;padding:2px 6px;border-radius:4px;background:#14110db8;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);color:var(--fg-soft);font-size:11px;font-weight:500;pointer-events:none}.tab-icon{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linejoin:round;stroke-linecap:round;margin-right:5px;vertical-align:-2px}.conv-group{margin-bottom:4px}.conv-group-label{font-size:11px;color:var(--muted-2);padding:12px 12px 4px;letter-spacing:.04em}.account{position:relative;display:flex;align-items:center;gap:10px}.account-avatar{width:30px;height:30px;border-radius:50%;flex-shrink:0;background:var(--accent-soft);color:var(--accent);border:1px solid 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10px;border-radius:4px;font-size:13px;color:var(--fg-soft);cursor:pointer;background:transparent;border:none;font-family:inherit;transition:background .12s var(--ease),color .12s var(--ease)}.account-menu-item:hover{background:var(--surface-hover);color:var(--fg)}.account-menu-meta{color:var(--muted-2);font-size:12px;cursor:default}.account-menu-meta:hover{background:transparent;color:var(--muted-2)}.view-fade{animation:fade-in .18s var(--ease);flex:1;display:flex;flex-direction:column;min-height:0}.toast{position:fixed;bottom:56px;left:50%;transform:translate(-50%);z-index:300;padding:10px 18px;background:var(--surface-2);border:1px solid var(--border-glow);border-radius:var(--r-md);color:var(--fg);font-size:13.5px;box-shadow:0 8px 24px #0006;animation:fade-in .15s var(--ease)}.landing{min-height:100vh;background:radial-gradient(560px circle at var(--mx, 50%) var(--my, 30%),rgba(217,169,71,.06),transparent 55%),var(--bg);color:var(--fg);position:relative;overflow-x:hidden}.landing:before{content:"";position:fixed;top:-180px;left:calc(50% - 380px);width:760px;height:760px;border-radius:50%;background:radial-gradient(circle,rgba(217,169,71,.07),transparent 70%);filter:blur(100px);z-index:0;pointer-events:none;animation:orb-float 22s ease-in-out infinite}.landing:after{content:"";position:fixed;bottom:-220px;right:-120px;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(217,169,71,.045),transparent 70%);filter:blur(110px);z-index:0;pointer-events:none;animation:orb-float 28s ease-in-out infinite reverse}.landing>*{position:relative;z-index:1}.landing-noise{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;opacity:.022;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' 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var(--ease)}.landing-header-cta:hover{color:var(--fg);border-color:var(--accent)}.landing-nav{display:flex;gap:22px}.landing-nav a{color:var(--muted);font-size:14px;text-decoration:none;transition:color .15s var(--ease)}.landing-nav a:hover{color:var(--fg)}@media (max-width: 640px){.landing-nav{display:none}}.landing-hero{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;padding:clamp(48px,9vh,88px) clamp(24px,6vw,72px);max-width:1180px;margin:0 auto;background:radial-gradient(ellipse 60% 55% at 30% 40%,rgba(217,169,71,.08),transparent 70%)}.landing-hero-text{text-align:left}.landing-hero-text 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solid var(--border-glow);border-radius:var(--r-lg);padding:18px;box-shadow:0 12px 36px #00000059}.demo-msg{padding:9px 13px;border-radius:var(--r-md);font-size:13.5px;max-width:90%;margin-bottom:12px;line-height:1.5}.demo-msg.user{background:var(--accent-soft);color:var(--fg);border:1px solid var(--border-glow)}.demo-img{border-radius:var(--r-md);overflow:hidden;margin-bottom:12px;border:1px solid var(--border)}.demo-img img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}.demo-pending{aspect-ratio:16/10;display:flex;align-items:center;justify-content:center;color:var(--muted-2);font-size:12.5px;border:1px dashed var(--border-strong);background:var(--bg);border-radius:var(--r-md);margin-bottom:12px}.demo-hint{font-size:12px;color:var(--muted);text-align:center}.showcase-more{text-align:center;color:var(--muted-2);font-size:13px;margin-top:22px}.landing-section{max-width:980px;margin:0 auto;padding:clamp(56px,10vh,104px) 24px}.landing-section-title{font-family:var(--font-display);font-size:clamp(22px,3.5vw,30px);font-weight:600;text-align:center;margin-bottom:14px;letter-spacing:-.02em}.landing-section-lead{text-align:center;color:var(--muted);font-size:15px;margin-bottom:32px;max-width:620px;margin-left:auto;margin-right:auto;line-height:1.7}.landing-about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.about-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:24px;text-align:center}.about-card h3{font-size:16px;color:var(--fg);margin-bottom:8px}.about-card p{font-size:13.5px;color:var(--muted)}.about-card .feature-icon{font-size:28px;margin-bottom:10px}.landing-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.step{text-align:center}.step-num{width:40px;height:40px;border-radius:50%;background:var(--accent-soft);color:var(--accent);border:1px solid var(--border-glow);font-size:17px;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 14px}.step h3{font-size:15px;color:var(--fg);margin-bottom:6px}.step p{font-size:13px;color:var(--muted)}.landing-features{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;transition:border-color .2s var(--ease),transform .2s var(--ease)}.feature-card:hover{border-color:var(--border-glow);transform:translateY(-3px) scale(1.02);box-shadow:0 10px 28px #00000059}.feature-icon{width:30px;height:30px;margin-bottom:12px;color:var(--accent)}.feature-icon svg{width:100%;height:100%;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}.feature-card h3{font-size:15.5px;color:var(--fg);margin-bottom:6px}.feature-card p{font-size:13px;color:var(--muted);line-height:1.6}.landing-showcase{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.landing-showcase img{width:100%;aspect-ratio:1;object-fit:cover;border-radius:var(--r-md);border:1px solid var(--border);transition:transform .25s var(--ease)}.landing-showcase img:hover{transform:scale(1.03)}.landing-stack{max-width:620px;margin:0 auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden}.stack-row{display:flex;padding:14px 20px;border-bottom:1px solid var(--border)}.stack-row:last-child{border-bottom:none}.stack-layer{width:60px;flex-shrink:0;color:var(--accent);font-size:13.5px;font-weight:600}.stack-tech{color:var(--fg-soft);font-size:13.5px}.landing-tech-note{text-align:center;color:var(--muted-2);font-size:12.5px;margin-top:18px;line-height:1.7}.landing-faq{max-width:680px;margin:0 auto}.faq-item{border-bottom:1px solid var(--border)}.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;padding:16px 4px;background:transparent;border:none;color:var(--fg);font-size:15px;cursor:pointer;font-family:inherit;text-align:left}.faq-sign{color:var(--accent);font-size:20px;flex-shrink:0;margin-left:12px}.faq-a{padding:0 4px 16px;color:var(--muted);font-size:14px;line-height:1.7}.landing-cta-section{text-align:center;padding:clamp(56px,10vh,96px) 24px;background:radial-gradient(ellipse 60% 50% at 50% 50%,rgba(217,169,71,.06),transparent 70%)}.landing-cta-section h2{font-family:var(--font-display);font-size:clamp(24px,4vw,34px);font-weight:600;margin-bottom:24px;letter-spacing:-.02em}.landing-footer{border-top:1px solid var(--border);padding:28px 24px;text-align:center}.landing-footer-brand{display:flex;align-items:center;justify-content:center;gap:9px;color:var(--fg-soft);font-size:14px;margin-bottom:12px}.landing-footer-brand .dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}.landing-footer-links{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:10px}.landing-footer-links a{color:var(--muted);font-size:12px;text-decoration:none;display:inline-flex;align-items:center;gap:4px}.landing-footer-links a:hover{color:var(--fg-soft)}.landing-footer-links .beian-ga img{width:14px;height:14px}.landing-footer-meta{color:var(--muted-2);font-size:12px}.landing-footer-contact{color:var(--muted-2);font-size:12.5px;margin-bottom:8px}.landing-footer-contact a{color:var(--muted);text-decoration:none}.landing-footer-contact a:hover{color:var(--fg-soft)}@media (max-width: 768px){.landing-hero{grid-template-columns:1fr;gap:32px}.landing-hero-text{text-align:center}.landing-showcase{grid-template-columns:repeat(2,1fr)}.landing-about-grid,.landing-steps,.landing-features{grid-template-columns:1fr}}.state-error{text-align:center;padding:48px 20px;color:var(--muted);font-size:14px}.state-error button{background:transparent;border:1px solid var(--border-strong);color:var(--accent);padding:5px 14px;border-radius:var(--r-sm);cursor:pointer;font-family:inherit;font-size:13px;margin-left:8px}@media (prefers-reduced-motion: reduce){.thinking span,.img-card.loading .spinner,.modal,.modal-overlay{animation:none}.gallery-item,.send-btn,.new-btn,.conv-item,.tab,.generate-btn,.chip,.img-card,.lb-btn,.del-btn,.modal-btn{transition:none}}