.platform-help{--ph-surface:#fff;--ph-bg:#f7f6fc;--ph-ink:#25253c;--ph-muted:#686b80;--ph-border:#e8e5f1;position:fixed;z-index:15000;right:18px;top:18px;bottom:18px;width:min(480px,calc(100vw - 36px));display:flex;flex-direction:column;background:var(--ph-surface);color:var(--ph-ink);border:1px solid var(--ph-border);border-radius:20px;box-shadow:0 15px 65px #14102e33;font:14px/1.55 system-ui,sans-serif;overflow:hidden}.platform-help[hidden]{display:none!important}.platform-help *{box-sizing:border-box}.ph-header{padding:23px;display:flex;align-items:flex-start;gap:10px;background:linear-gradient(125deg,#f0eaff,#f7f5ff);border-bottom:1px solid var(--ph-border)}.ph-header>div{flex:1}.ph-kicker{font-size:10px;font-weight:700;letter-spacing:1px;color:#7052ed}.ph-header h2{font-size:22px;margin:5px 0}.ph-header p{margin:0;color:var(--ph-muted)}.ph-close{border:0;background:transparent;color:var(--ph-ink);padding:7px;font-size:18px;cursor:pointer}.ph-history{flex:1;overflow:auto;overscroll-behavior:contain;padding:20px;min-height:80px;overflow-wrap:anywhere}.ph-history h3{font-size:16px;margin:0 0 9px}.ph-welcome p{color:var(--ph-muted)}.ph-prompts{display:grid;gap:9px;margin:20px 0}.ph-prompts button,.ph-action{border:1px solid var(--ph-border);background:var(--ph-surface);color:#6848d7;border-radius:10px;padding:10px 12px;text-align:left;cursor:pointer;font:inherit}.ph-prompts button:hover,.ph-action:hover{background:var(--ph-bg);border-color:#b6a4fa}.ph-question{margin:18px 0 12px 35px;background:#7052ed;color:#fff;padding:13px 16px;border-radius:13px 13px 3px 13px;white-space:pre-wrap}.ph-answer{padding:17px 0;border-bottom:1px solid var(--ph-border)}.ph-answer ol{padding-left:21px}.ph-answer li{margin:10px 0}.ph-actions{display:flex;gap:8px;flex-wrap:wrap;margin:13px 0 3px}.ph-action{font-size:12px}.ph-note,.ph-loading{font-size:12px;color:var(--ph-muted)}.ph-configuration{border-left:3px solid #7052ed;padding:4px 12px;margin:18px 0;background:var(--ph-bg);border-radius:0 10px 10px 0}.ph-configuration h4{margin:8px 0}.ph-configuration ul{padding-left:16px}.ph-navigation-status{font-size:12px;color:#6848d7;padding:0 20px}.ph-form{padding:15px 20px;border-top:1px solid var(--ph-border);background:var(--ph-surface)}.ph-form label{display:block;font-weight:650;font-size:12px;margin-bottom:8px}.ph-form>div{display:flex;align-items:stretch;gap:8px}.ph-form textarea{min-width:0;flex:1;resize:vertical;max-height:140px;padding:11px;border:1px solid var(--ph-border);border-radius:10px;background:var(--ph-bg);color:var(--ph-ink);font:inherit}.ph-send{padding:10px 13px;border:0;border-radius:10px;background:#7052ed;color:#fff;cursor:pointer;font-weight:650}.ph-send:disabled{opacity:.5}.ph-form p{font-size:11px;color:var(--ph-muted);margin:8px 0 0}.ph-footer{padding:11px 20px;background:var(--ph-bg);display:flex;justify-content:space-between;gap:10px;font-size:11px;flex-wrap:wrap}.ph-support{color:#6848d7;font-weight:600;text-decoration:underline}.platform-help :focus-visible{outline:2px solid #7052ed;outline-offset:3px}.platform-help h2,.platform-help h3{color:var(--ph-ink);text-transform:none}.platform-help .ph-prompts button,.platform-help .ph-action{background:#f7f5ff;color:#5636bd;border-color:#ded5f8}.platform-help .ph-prompts button:hover,.platform-help .ph-action:hover{background:#eee8ff;border-color:#b6a4fa}.platform-help .ph-send{background:#7052ed;color:#fff}@media(max-width:550px){.platform-help{inset:0;width:100%;border-radius:0;bottom:env(safe-area-inset-bottom,0)}.ph-header{padding:17px}.ph-history{padding:15px}.ph-form{padding:12px 15px}.ph-header h2{font-size:20px}.ph-form textarea{font-size:16px}.ph-close,.ph-send,.ph-prompts button{min-height:44px}}@media(prefers-reduced-motion:no-preference){.ph-action,.ph-prompts button{transition:background .15s,border-color .15s}}