:root{--bg: #f4f8f0;--surface: #ffffff;--ink: #24352a;--muted: #71806f;--border: #e2eae0;--primary: #2f9e63;--primary-dark: #1f7a4a;--primary-tint: #e7f3ea;--radius: 16px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;-webkit-font-smoothing:antialiased;line-height:1.6}h1,h2,h3,p{margin:0}ul{margin:0;padding:0;list-style:none}a{color:inherit}.container{width:100%;max-width:760px;margin:0 auto;padding-inline:20px}.muted{color:var(--muted);font-size:13px}.hero{padding:56px 20px 8px;text-align:center}.pill{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--primary-tint);color:var(--primary-dark);font-size:12px;font-weight:600}.pill-small{padding:2px 10px;font-size:11px}.hero h1{margin-top:16px;font-size:32px;letter-spacing:.02em}.tagline{margin-top:8px;color:var(--muted);font-size:16px}.features{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:28px;text-align:left}.feature{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.feature h3{font-size:15px;color:var(--primary-dark)}.feature p{margin-top:4px;font-size:13px;color:var(--muted)}.feature-soon h3{color:var(--muted)}.cta{display:inline-block;margin:28px 0 0;padding:12px 24px;border-radius:999px;background:var(--primary);color:#fff;font-size:15px;font-weight:600;text-decoration:none;transition:background .2s}.cta:hover{background:var(--primary-dark)}.section{padding:48px 20px 96px}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px}.section-head h2{font-size:22px}.app{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:16px 16px 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dashed var(--border);font-size:12px;color:var(--muted)}.chip{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}.chip-ok{background:var(--primary-tint);color:var(--primary-dark)}.chip-outline{border:1px solid var(--border);color:var(--muted);background:var(--surface)}.chip-soft{background:#f1f5ee;color:var(--muted)}.bottom-nav{position:fixed;inset-inline:0;bottom:0;display:flex;justify-content:space-around;padding:8px 16px calc(8px + env(safe-area-inset-bottom));background:#ffffffeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--border)}.bottom-nav button{border:0;background:none;font-size:14px;color:var(--muted);padding:6px 18px;border-radius:999px;cursor:pointer}.bottom-nav button.active{background:var(--primary-tint);color:var(--primary-dark);font-weight:700}.footer{padding:0 20px 110px;text-align:center;font-size:12px;color:var(--muted)}@media (min-width: 640px){.hero{padding-top:80px}.hero h1{font-size:40px}.features{grid-template-columns:repeat(4,1fr)}.bottom-nav{position:static;margin-top:16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}.footer{padding-bottom:48px}}.app-header{display:flex;align-items:center;justify-content:space-between;padding-top:20px}.tabs{display:flex;gap:8px;margin-top:12px;overflow-x:auto}.tabs a{padding:8px 16px;border-radius:999px;font-size:14px;color:var(--muted);text-decoration:none;white-space:nowrap;border:1px solid transparent}.tabs a.active{background:var(--primary-tint);color:var(--primary-dark);font-weight:700}.view-host{padding-top:16px;padding-bottom:48px}.view-host>*+*{margin-top:12px}.btn-primary{border:0;background:var(--primary);color:#fff;border-radius:12px;padding:10px 18px;font-size:14px;font-weight:600;cursor:pointer}.btn-primary:hover{background:var(--primary-dark)}.btn-ghost{border:1px solid var(--border);background:var(--surface);color:var(--ink);border-radius:12px;padding:9px 16px;font-size:14px;cursor:pointer}.btn-danger{border:0;background:#c0392b;color:#fff;border-radius:12px;padding:10px 18px;font-size:14px;cursor:pointer}.btn-mini{padding:5px 10px;font-size:12px;border-radius:9px}.btn-block{width:100%}button:disabled{opacity:.55;cursor:not-allowed}.inline-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.stack-form{display:flex;flex-direction:column;gap:10px;align-items:stretch}.field{display:flex;flex-direction:column;gap:4px;font-size:13px;color:var(--muted)}.inline-form input,.inline-form select,.stack-form input,.stack-form select,.stack-form textarea{border:1px solid var(--border);border-radius:10px;padding:9px 12px;font-size:14px;font-family:inherit;background:var(--surface);color:var(--ink);min-width:0}.inline-form input[type=number]{width:110px}.stack-form textarea{resize:vertical}.login{padding:64px 20px 24px;text-align:center}.login 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12px;font-size:15px;font-family:inherit}.toast-host{position:fixed;top:16px;left:50%;transform:translate(-50%);display:flex;flex-direction:column;gap:8px;z-index:100;width:min(420px,calc(100vw - 32px))}.toast{border-radius:12px;padding:10px 16px;font-size:14px;color:#fff;box-shadow:0 8px 24px #24352a40;animation:toast-in .2s ease-out}.toast-ok{background:var(--primary)}.toast-error{background:#c0392b}.toast-warn{background:#b7791f}.toast-info{background:#4a5a50}@keyframes toast-in{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}.offline-banner{position:fixed;top:0;inset-inline:0;display:flex;gap:12px;align-items:center;justify-content:center;background:#b7791f;color:#fff;font-size:13px;padding:8px 16px;z-index:90}.offline-banner button{background:#fff;color:#7a5410;border:0;border-radius:999px;padding:4px 12px;font-size:12px;cursor:pointer}@media (min-width: 640px){.chat-card{min-height:70vh}}