.wfb-tab{position:fixed;right:0;top:50%;z-index:900;transform:translateY(-50%);writing-mode:vertical-rl;rotate:180deg;padding:1rem .6rem;border:0;border-radius:0 .5rem .5rem 0;background:var(--color-primary,#d7261e);color:var(--color-on-primary,#fff);font:600 .9rem/1 var(--font-sans,system-ui,sans-serif);letter-spacing:.02em;cursor:pointer;box-shadow:0 6px 18px -8px rgba(0,0,0,.35)}
.wfb-tab:hover{padding-right:.8rem}.wfb-tab:focus-visible{outline:3px solid var(--color-accent,#111);outline-offset:2px}
@media (max-width:640px){.wfb-tab{top:auto;bottom:6.5rem;transform:none;padding:.75rem .45rem;font-size:.78rem}}
@media print{.wfb-tab,.wfb{display:none!important}}
.wfb{position:fixed;inset:0;z-index:2000;display:flex;align-items:center;justify-content:center;padding:16px;background:rgba(0,0,0,.55)}
.wfb[hidden]{display:none!important}
.wfb-panel{position:relative;display:flex;flex-direction:column;width:min(30rem,100%);max-height:calc(100dvh - 32px);border-radius:1rem;background:var(--color-surface,#fff);color:var(--color-text,#111);font-family:var(--font-sans,system-ui,sans-serif);overflow:hidden;box-shadow:0 30px 60px -20px rgba(0,0,0,.5)}
.wfb-body{overflow-y:auto;overscroll-behavior:contain}
.wfb-sec{padding:1.2rem 1.5rem}.wfb-sec+.wfb-sec{border-top:8px solid var(--color-surface-alt,#f2f2f4);background:var(--color-surface-alt,#f6f6f8)}
.wfb-head h2{margin:0 2rem .4rem 0;font-size:1.3rem;line-height:1.25}.wfb-head p{margin:0;color:var(--color-muted,#555);line-height:1.5}
.wfb-x{position:absolute;top:.8rem;right:.8rem;width:2.4rem;height:2.4rem;border:0;border-radius:50%;background:transparent;color:var(--color-muted,#666);font-size:1.6rem;line-height:1;cursor:pointer}
.wfb-x:hover{background:var(--color-surface-alt,#f2f2f4)}
.wfb-q{margin:0 0 .8rem;font-weight:700;line-height:1.4}
.wfb-opts{display:flex;flex-direction:column;gap:.6rem}
.wfb-opt{display:flex;align-items:center;gap:.8rem;width:100%;min-height:3.2rem;padding:.8rem 1rem;border:2px solid transparent;border-radius:.6rem;background:var(--color-surface,#fff);color:inherit;font:inherit;text-align:left;cursor:pointer;box-shadow:0 1px 0 rgba(0,0,0,.04)}
.wfb-opt:hover{border-color:var(--color-line,#ddd)}.wfb-opt[aria-pressed="true"],.wfb-opt[aria-checked="true"]{border-color:var(--color-accent,#3b6fd8)}
.wfb-ico{font-size:1.4rem;line-height:1}
.wfb-rate{display:grid;grid-template-columns:repeat(5,1fr);gap:.4rem}
.wfb-rate button{display:flex;flex-direction:column;align-items:center;gap:.35rem;padding:.6rem .2rem;border:2px solid transparent;border-radius:.6rem;background:var(--color-surface,#fff);color:inherit;font:600 .8rem/1.1 inherit;cursor:pointer}
.wfb-rate button span:first-child{font-size:1.7rem}.wfb-rate button[aria-checked="true"]{border-color:var(--color-accent,#3b6fd8)}
.wfb label{display:block;margin:.8rem 0 .35rem;font-weight:700;font-size:.92rem}
.wfb input,.wfb textarea{box-sizing:border-box;width:100%;padding:.75rem .9rem;border:1px solid var(--color-line,#d4d4d8);border-radius:.6rem;background:var(--color-surface,#fff);color:inherit;font:inherit}
.wfb textarea{min-height:6.5rem;resize:vertical}
.wfb-hint{margin:.6rem 0 .4rem;color:var(--color-muted,#555);font-size:.9rem}
.wfb-note{margin:.8rem 0 0;color:var(--color-muted,#666);font-size:.8rem}.wfb-note a{color:inherit}
.wfb-foot{display:flex;justify-content:flex-end;gap:.6rem;padding:1rem 1.5rem;border-top:1px solid var(--color-line,#eee);background:var(--color-surface,#fff)}
.wfb-foot button{min-height:2.8rem;padding:.5rem 1.4rem;border-radius:999px;font:700 .95rem/1 inherit;cursor:pointer}
.wfb-cancel{border:1px solid var(--color-line,#d4d4d8);background:var(--color-surface,#fff);color:inherit}
.wfb-send{border:0;background:var(--color-accent,#3b6fd8);color:var(--color-on-accent,#fff)}.wfb-send[disabled]{opacity:.5;cursor:default}
.wfb-err{margin:.6rem 0 0;color:#b42318;font-size:.88rem}
.wfb-ok{padding:2.5rem 1.5rem;text-align:center}.wfb-ok h2{margin:0 0 .5rem}
.wfb-trap{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}