:root {
  --bg:#f3f5f3;
  --card:rgba(255,255,255,.94);
  --ink:#142521;
  --muted:#6b7a76;
  --line:#dde5e1;
  --brand:#0f6b63;
  --brand-2:#115b55;
  --brand-soft:#e6f1ef;
  --danger:#a13b34;
  --success:#176c57;
  --shadow:0 20px 60px rgba(26,53,47,.09);
  --radius:24px;
}
*{box-sizing:border-box}
html{background:var(--bg)}
body{
  margin:0;color:var(--ink);
  background:radial-gradient(circle at 80% -10%,rgba(15,107,99,.12),transparent 34rem),var(--bg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;
}
button,textarea{font:inherit} button{-webkit-tap-highlight-color:transparent}
.shell{width:min(720px,100%);margin:0 auto;padding:max(18px,env(safe-area-inset-top)) 16px calc(32px + env(safe-area-inset-bottom))}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:8px 2px 18px}
.eyebrow{color:var(--brand);font-size:11px;font-weight:800;letter-spacing:.18em}
h1{margin:4px 0 0;font-size:28px;letter-spacing:-.04em}
.icon-btn{width:42px;height:42px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--brand);font-size:26px;line-height:1;box-shadow:0 8px 24px rgba(20,37,33,.07)}
.card{background:var(--card);border:1px solid rgba(255,255,255,.85);border-radius:var(--radius);box-shadow:var(--shadow);backdrop-filter:blur(18px)}
.hero{padding:22px}
.hero-copy h2{margin:0 0 8px;font-size:22px;letter-spacing:-.03em}
.hero-copy p{margin:0 0 18px;color:var(--muted);font-size:14px;line-height:1.65}
.input-wrap{position:relative;display:block}
textarea{width:100%;resize:none;min-height:118px;border:1px solid var(--line);border-radius:18px;padding:16px 54px 16px 16px;color:var(--ink);background:#fbfcfb;outline:none;line-height:1.6;transition:.18s ease}
textarea:focus{border-color:rgba(15,107,99,.55);box-shadow:0 0 0 4px rgba(15,107,99,.08);background:#fff}
textarea::placeholder{color:#9aa6a2}
.clear-btn{position:absolute;right:10px;top:10px;border:0;border-radius:10px;background:#edf1ef;color:#70807b;padding:7px 9px;font-size:12px}
.primary-btn{min-height:54px;border:0;border-radius:16px;font-weight:800;cursor:pointer;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2));box-shadow:0 12px 26px rgba(15,107,99,.2)}
.primary-btn.wide{width:100%;margin-top:12px}.primary-btn .btn-icon{margin-right:8px}.primary-btn:active{transform:translateY(1px)}.primary-btn:disabled{opacity:.68;cursor:wait}.primary-btn.busy{box-shadow:none}
.clip-hint{margin-top:12px;display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:14px;background:#f1f7f5;color:#41635d;font-size:13px}.clip-hint button{margin-left:auto;border:0;background:transparent;color:var(--brand);font-weight:800}.pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 5px rgba(15,107,99,.11)}
.supports{display:flex;align-items:center;justify-content:center;gap:9px;color:#88948f;font-size:12px;margin-top:17px}.supports i{width:3px;height:3px;border-radius:50%;background:#b8c2be}
.status-card{margin-top:14px;padding:16px 18px;border-radius:18px;border:1px solid var(--line);background:#fff;box-shadow:0 10px 30px rgba(20,37,33,.05)}
.status-card.error{border-color:#edd8d5;background:#fff9f8;color:var(--danger)}
.status-card.success{border-color:#d4e6df;background:#f8fcfa;color:var(--success)}
.status-card strong{display:block;margin-bottom:4px}.status-card small{color:var(--muted);line-height:1.55}
.loader-row{display:flex;gap:12px;align-items:center}.loader-copy{min-width:0;flex:1}.loader-row strong,.loader-row small{display:block}.spinner{width:26px;height:26px;border:3px solid #d9e7e3;border-top-color:var(--brand);border-radius:50%;animation:spin .8s linear infinite;flex:0 0 auto}@keyframes spin{to{transform:rotate(360deg)}}
.progress{height:5px;border-radius:999px;background:#e7efec;overflow:hidden;margin-top:9px}.progress i{display:block;height:100%;background:var(--brand);border-radius:999px;transition:width .16s linear}
.done-head{display:flex;align-items:center;gap:11px}.done-icon{display:grid;place-items:center;width:31px;height:31px;border-radius:50%;background:#dff1ea;color:var(--success);font-weight:900}.done-head strong,.done-head small{display:block}.done-lines{margin-top:13px;padding-top:11px;border-top:1px solid #e4ece8;display:grid;gap:7px}.done-lines div{display:flex;justify-content:space-between;gap:14px;font-size:13px}.done-lines span{color:var(--muted)}.done-lines b{font-weight:750;color:var(--ink);text-align:right}
.result{margin-top:10px}.compact-actions{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:8px}.compact-actions.two{grid-template-columns:1.2fr 1fr}.primary-mini,.secondary-mini{min-height:46px;border-radius:14px;font-weight:800;cursor:pointer}.primary-mini{border:0;color:#fff;background:var(--brand)}.secondary-mini{border:1px solid var(--line);color:#52645f;background:#fff}.ios-note{margin:9px 3px 0;color:#7a8783;font-size:11px;line-height:1.6}
.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom));transform:translate(-50%,20px);opacity:0;pointer-events:none;color:#fff;background:rgba(18,31,28,.92);border-radius:999px;padding:10px 15px;font-size:13px;transition:.2s ease;z-index:50}.toast.show{opacity:1;transform:translate(-50%,0)}
footer{text-align:center;color:#909a97;font-size:11px;line-height:1.6;padding:24px 18px 0}.hidden{display:none!important}
.diagnostics{margin-top:12px;border-top:1px solid rgba(125,45,35,.14);padding-top:10px;font-size:12px}.diagnostics summary{cursor:pointer;color:inherit;opacity:.78}.diagnostics code{display:block;margin-top:8px;padding:10px;border-radius:10px;background:rgba(255,255,255,.56);white-space:pre-wrap;word-break:break-all;line-height:1.55;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}
@media(max-width:520px){.shell{padding-left:12px;padding-right:12px}.hero{padding:18px}.hero-copy h2{font-size:21px}.compact-actions{grid-template-columns:1fr 1fr}.compact-actions .primary-mini{grid-column:1/-1}.compact-actions.two .primary-mini{grid-column:auto}.primary-btn{min-height:56px}}