:root{color-scheme:light dark;--bg: #f5f5ff;--card: #ffffff;--border: #e5e7eb;--text: #1f2937;--text-sub: #6b7280;--primary: #4f46e5;--primary-hover: #4338ca;--primary-soft: #eef2ff;--success: #10b981;--danger: #ef4444;--warn: #f59e0b;--shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-lg: 0 10px 25px -5px rgba(79, 70, 229, .1), 0 8px 10px -6px rgba(79, 70, 229, .08);--radius: 12px}@media(prefers-color-scheme:dark){:root{--bg: #0f172a;--card: #1e293b;--border: #334155;--text: #e2e8f0;--text-sub: #94a3b8;--primary: #818cf8;--primary-hover: #a5b4fc;--primary-soft: #1e1b4b;--success: #34d399;--danger: #f87171;--warn: #fbbf24;--shadow: 0 1px 3px rgba(0,0,0,.3), 0 1px 2px rgba(0,0,0,.2);--shadow-lg: 0 10px 25px -5px rgba(129, 140, 248, .15), 0 8px 10px -6px rgba(129, 140, 248, .1)}}*{box-sizing:border-box}html,body{margin:0;padding:0;min-height:100vh;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}#app{max-width:1100px;margin:0 auto;padding:32px 20px 60px}button{font-family:inherit;cursor:pointer;border:none;border-radius:8px;transition:all .15s ease}input,textarea{font-family:inherit;font-size:15px;color:var(--text);background:var(--card);border:1.5px solid var(--border);border-radius:8px;padding:10px 14px;outline:none;transition:border-color .15s ease,box-shadow .15s ease;width:100%}input:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 15%,transparent)}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 24px;margin-bottom:20px}.card-title{font-size:16px;font-weight:600;margin:0 0 16px;display:flex;align-items:center;gap:8px}.card-title .icon{color:var(--primary)}.btn-primary{background:var(--primary);color:#fff;padding:10px 18px;font-weight:500;display:inline-flex;align-items:center;gap:6px}.btn-primary:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-lg)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--text-sub);padding:8px 12px;border:1px solid var(--border)}.btn-ghost:hover{background:color-mix(in srgb,var(--primary) 6%,var(--card));color:var(--primary);border-color:var(--primary)}.btn-danger{background:transparent;color:var(--danger);padding:6px 10px;font-size:13px}.btn-danger:hover{background:color-mix(in srgb,var(--danger) 10%,transparent)}.btn-copy{background:var(--primary-soft);color:var(--primary);padding:6px 12px;font-size:13px;font-weight:500;border:1px solid color-mix(in srgb,var(--primary) 20%,transparent)}.btn-copy:hover{background:color-mix(in srgb,var(--primary) 18%,var(--primary-soft))}.btn-copy.copied{background:color-mix(in srgb,var(--success) 15%,transparent);color:var(--success);border-color:color-mix(in srgb,var(--success) 30%,transparent)}.badge{display:inline-flex;align-items:center;padding:2px 8px;font-size:12px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-weight:500}.badge-success{background:color-mix(in srgb,var(--success) 15%,transparent);color:var(--success)}.badge-warn{background:color-mix(in srgb,var(--warn) 15%,transparent);color:var(--warn)}.badge-danger{background:color-mix(in srgb,var(--danger) 15%,transparent);color:var(--danger)}.code{font-family:JetBrains Mono,Fira Code,ui-monospace,Consolas,monospace;font-size:13px;word-break:break-all;line-height:1.55}.muted{color:var(--text-sub);font-size:13px}.row{display:flex;gap:10px;align-items:center}.row.wrap{flex-wrap:wrap}.row.gap-sm{gap:6px}.row.gap-lg{gap:16px}.grid-2{display:grid;grid-template-columns:1fr;gap:20px}@media(min-width:860px){.grid-2{grid-template-columns:1.15fr 1fr}}.header{margin-bottom:28px}.header h1{margin:0 0 6px;font-size:26px;font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,var(--primary),#ec4899);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.header p{margin:0;color:var(--text-sub);font-size:14px}.toast-stack{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px;pointer-events:none}.toast{background:var(--card);border:1px solid var(--border);border-left:4px solid var(--success);border-radius:8px;padding:10px 16px;box-shadow:var(--shadow-lg);font-size:14px;animation:toast-in .2s ease;max-width:340px}.toast.error{border-left-color:var(--danger)}@keyframes toast-in{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.param-chip{display:flex;flex-direction:column;gap:4px;padding:12px 14px;border:1.5px solid var(--border);border-radius:10px;background:var(--card);cursor:pointer;transition:all .15s ease}.param-chip:hover{border-color:color-mix(in srgb,var(--primary) 40%,var(--border));background:color-mix(in srgb,var(--primary) 3%,var(--card))}.param-chip.selected{border-color:var(--primary);background:var(--primary-soft);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 10%,transparent)}.param-chip .k{font-size:12px;color:var(--text-sub);font-weight:500}.param-chip .v{font-family:JetBrains Mono,ui-monospace,Consolas,monospace;font-size:13px;color:var(--text);word-break:break-all}.param-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}.chain-list{display:flex;flex-direction:column;gap:8px;margin-top:10px}.chain-step{display:flex;gap:10px;padding:8px 12px;border-radius:8px;background:color-mix(in srgb,var(--primary) 4%,var(--card));font-size:13px;align-items:center}.chain-step .idx{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--primary);color:#fff;font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:600}.chain-step .via{flex-shrink:0;font-size:11px}.chain-step .url{font-family:JetBrains Mono,ui-monospace,monospace;font-size:12px;color:var(--text);word-break:break-all}.input-with-action{display:flex;gap:10px}.input-with-action input{flex:1}.tpl-item{padding:12px 14px;border:1.5px solid var(--border);border-radius:10px;display:flex;flex-direction:column;gap:8px;cursor:pointer;transition:all .15s ease;background:var(--card)}.tpl-item:hover{border-color:color-mix(in srgb,var(--primary) 40%,var(--border))}.tpl-item.selected{border-color:var(--primary);background:var(--primary-soft);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 10%,transparent)}.tpl-item .tpl-head{display:flex;justify-content:space-between;align-items:center;gap:8px}.tpl-item .tpl-name{font-weight:600;font-size:14px}.tpl-item .tpl-body{font-family:JetBrains Mono,ui-monospace,monospace;font-size:12px;color:var(--text-sub);word-break:break-all}.empty-state{text-align:center;padding:30px 12px;color:var(--text-sub);font-size:13px}.empty-state svg{opacity:.4;margin:0 auto 8px;display:block}.result-box{padding:14px 16px;background:color-mix(in srgb,var(--primary) 5%,var(--card));border:1.5px solid color-mix(in srgb,var(--primary) 25%,var(--border));border-radius:10px}.result-box .lbl{font-size:12px;color:var(--text-sub);margin-bottom:6px}.result-box .val{font-family:JetBrains Mono,ui-monospace,monospace;font-size:13px;word-break:break-all;margin-bottom:10px}.result-box .foot{display:flex;justify-content:flex-end}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a99;display:flex;align-items:center;justify-content:center;z-index:9998;padding:20px;animation:fade-in .15s ease}@keyframes fade-in{0%{opacity:0}to{opacity:1}}.modal{background:var(--card);border-radius:var(--radius);width:100%;max-width:480px;padding:24px;box-shadow:var(--shadow-lg);animation:slide-up .2s ease}@keyframes slide-up{0%{transform:translateY(16px);opacity:0}to{transform:translateY(0);opacity:1}}.modal h3{margin:0 0 16px;font-size:18px}.modal .field{margin-bottom:14px}.modal label{display:block;font-size:13px;font-weight:500;margin-bottom:6px;color:var(--text-sub)}.modal .actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}.spinner{width:16px;height:16px;border:2px solid color-mix(in srgb,#fff 40%,transparent);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.tag{display:inline-flex;align-items:center;padding:3px 8px;font-size:11px;border-radius:6px;background:var(--primary-soft);color:var(--primary);font-weight:500}.chain-step.landing{background:color-mix(in srgb,var(--success) 12%,var(--card));border:1.5px solid color-mix(in srgb,var(--success) 50%,transparent);padding:10px 12px}.chain-step.landing .idx{background:var(--success)}.landing-badge{display:inline-flex;align-items:center;gap:4px;padding:3px 9px;font-size:11px;border-radius:999px;background:color-mix(in srgb,var(--success) 18%,transparent);color:var(--success);font-weight:600;flex-shrink:0}.result-box.recommended{border-width:2.5px;border-color:var(--success);background:color-mix(in srgb,var(--success) 8%,var(--card));box-shadow:0 4px 14px color-mix(in srgb,var(--success) 14%,transparent)}.result-box.recommended .val{font-size:14px;font-weight:500}.result-box.subtle{opacity:.82}@media(max-width:859px){#app{max-width:100%;padding:24px 14px 48px}.header{margin-bottom:20px}.header h1{font-size:22px}.header p{font-size:13px}.card{padding:18px 16px;margin-bottom:16px}.card-title{font-size:15px;margin-bottom:14px}.row.wrap-sm{flex-wrap:wrap}.toast-stack{top:12px;right:12px;left:12px;align-items:stretch}.toast{max-width:100%;font-size:13px}}@media(max-width:479px){html,body{font-size:14px}#app{padding:18px 12px 40px}.header{margin-bottom:16px}.header h1{font-size:20px;letter-spacing:-.01em}.header p{font-size:12.5px;line-height:1.55}.card{padding:14px 12px;margin-bottom:12px;border-radius:10px}.card-title{font-size:14px;margin-bottom:12px;gap:6px}.btn-primary{padding:11px 14px;font-size:14px;min-height:44px;justify-content:center}.btn-ghost{padding:9px 10px;font-size:13px;min-height:36px}.btn-copy{padding:8px 12px;font-size:13px;min-height:36px}.btn-danger{padding:6px 8px;font-size:12px}input,textarea{padding:10px 12px;font-size:14px}.input-with-action{flex-direction:column;gap:8px}.input-with-action input,.input-with-action .btn-primary{width:100%}.code,.result-box .val,.tpl-item .tpl-body,.param-chip .v,.muted{font-size:12px}.param-grid{grid-template-columns:1fr;gap:8px}.param-chip{padding:10px 12px;gap:3px}.result-box{padding:12px}.result-box .lbl{font-size:11px;margin-bottom:4px}.result-box .val{margin-bottom:8px}.result-box .foot{justify-content:flex-start}.empty-state{padding:24px 8px;font-size:12px}.badge{font-size:11px;padding:2px 7px}.tag{font-size:10.5px;padding:2px 7px}.tpl-item{padding:11px 12px;gap:6px}.tpl-item .tpl-name{font-size:13.5px}}@media(max-width:390px){html,body{font-size:13.5px}#app{padding:14px 10px 32px}.header{margin-bottom:12px}.header h1{font-size:19px;line-height:1.25}.header p{font-size:12px}.card{padding:12px 10px;margin-bottom:10px;border-radius:10px}.card-title{font-size:13.5px;margin-bottom:10px}.btn-primary{padding:12px 14px;font-size:14px;min-height:48px;letter-spacing:.01em}.btn-ghost,.btn-copy{padding:8px 10px;font-size:12.5px;min-height:36px}input,textarea{padding:11px 10px;font-size:14px;min-height:44px}.input-with-action{gap:10px}.code,.result-box .val,.tpl-item .tpl-body,.param-chip .v{font-size:11.5px;line-height:1.5}.muted{font-size:11.5px}.empty-state{padding:20px 6px;font-size:11.5px}.empty-state svg{width:40px;height:40px}.result-box{padding:10px}.result-box .lbl{font-size:10.5px}.result-box .val{margin-bottom:6px}.param-chip{padding:9px 10px}.tpl-item{padding:10px;gap:5px}.tpl-item .tpl-name{font-size:13px}.tpl-item .tpl-body{font-size:11.5px;line-height:1.55}.badge{font-size:10.5px;padding:2px 6px}.tag{font-size:10px;padding:2px 6px}}