/* Reply guides (/replies/, /zh/replies/). Same tokens as the home page. */
:root{
  --bg:#F3F2F9;--ink:#1A1A22;--ink-2:rgba(26,26,34,.7);--ink-3:rgba(26,26,34,.62);
  --line:rgba(26,26,34,.08);--line-bright:rgba(26,26,34,.15);
  --acc:#7D6CED;--acc-2:#9B87FE;--acc-ink:#6C5CE7;
  --grad:linear-gradient(110deg,#9B87FE 0%,#7D6CED 55%,#6C5CE7 100%);
  --pos:#3E9A66;--cau:#B7791F;--dan:#C2493C;
  --disp:"Space Grotesk",-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC",sans-serif;
  --body:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI","PingFang SC","Hiragino Sans",Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--body);background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:absolute;top:-380px;left:50%;width:900px;height:900px;margin-left:-450px;border-radius:50%;background:radial-gradient(circle,rgba(125,108,237,.18),transparent 62%);filter:blur(40px);pointer-events:none;z-index:0}
a{color:inherit;text-decoration:none}
.wrap{max-width:1040px;margin:0 auto;padding:0 28px;position:relative;z-index:1}
header{position:sticky;top:0;z-index:50;background:rgba(243,242,249,.82);backdrop-filter:saturate(160%) blur(20px);-webkit-backdrop-filter:saturate(160%) blur(20px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--disp);font-weight:600;font-size:18px}
.brand .mark{width:32px;filter:drop-shadow(0 0 8px rgba(155,135,254,.45))}
.brand .cue{color:var(--acc)}
.nav-links{display:flex;align-items:center;gap:22px;font-size:14.5px;color:var(--ink-2)}
.nav-links a:hover{color:var(--ink)}
.nav-links .lang{border:1px solid var(--line-bright);border-radius:9px;padding:4px 10px;font-size:13px}
@media(max-width:640px){.nav-links a[href$="mac/"],.nav-links a[href$="mac/zh"]{display:none}.nav-links{gap:14px}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--disp);font-size:15px;font-weight:500;padding:0 22px;height:48px;border-radius:13px;white-space:nowrap;border:none;cursor:pointer;transition:transform .14s,box-shadow .3s}
.btn-primary{background:var(--acc-ink);color:#fff!important;box-shadow:0 10px 30px -8px rgba(125,108,237,.55)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 14px 40px -8px rgba(125,108,237,.7)}
.btn-glass{background:#fff;color:var(--ink);border:1px solid var(--line-bright)}
.btn-sm{height:38px;font-size:14px;padding:0 16px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.kicker{font-family:var(--disp);font-size:12.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--acc-ink)}
h1,h2,h3{font-family:var(--disp);letter-spacing:-.02em}
a:focus-visible,button:focus-visible{outline:2px solid var(--acc-ink);outline-offset:3px;border-radius:6px}

/* guide page */
.guide{padding:28px 28px 40px}
.crumbs{display:flex;gap:8px;font-size:13.5px;color:var(--ink-3);margin-bottom:28px}
.crumbs a:hover{color:var(--ink)}
.guide h1{font-size:clamp(32px,5vw,52px);line-height:1.08;font-weight:600;letter-spacing:-.035em;margin:12px 0 26px;max-width:20em}
html[lang=zh-CN] .guide h1{line-height:1.2;letter-spacing:-.01em}
.answer{background:#fff;border:1px solid rgba(155,135,254,.35);border-radius:22px;padding:24px 26px;box-shadow:0 20px 50px -30px rgba(125,108,237,.5);max-width:780px}
.answer .k,.row .k,.rl{font-family:var(--disp);font-size:11.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--acc-ink);margin-bottom:6px}
.answer p{font-size:17.5px;line-height:1.7}
.guide section{margin-top:52px}
.guide h2{font-size:22px;font-weight:600;margin-bottom:16px}
.grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:28px;align-items:start}
.grid section{margin-top:52px}
@media(max-width:820px){.grid{grid-template-columns:1fr;gap:0}}

/* screenshot mock */
.shot{background:#fff;border-radius:22px;overflow:hidden;box-shadow:0 0 0 1px var(--line),0 30px 60px -34px rgba(26,26,34,.4);font-size:14.5px}
.shot-bar{height:42px;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;border-bottom:1px solid var(--line);color:var(--ink)}
.op,.cm{display:flex;gap:11px;padding:14px 16px}
.op{background:#F7F7FA;border-bottom:1px solid var(--line)}
.av{width:34px;height:34px;flex:0 0 34px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:12px;font-family:var(--disp)}
.nm{font-weight:600;font-size:13.5px}
.nm small{font-weight:400;color:rgba(26,26,34,.5);margin-left:6px}
.tx{margin-top:2px;line-height:1.5;overflow-wrap:anywhere}
.quote{border:1px solid var(--line-bright);border-radius:12px;padding:9px 11px;margin-top:8px;font-size:13.5px}
.dm-head{padding:12px 16px 0;font-size:12.5px;color:var(--ink-3);text-align:center}
.dm{display:flex;flex-direction:column;gap:8px;padding:14px}
.b{max-width:82%;padding:9px 13px;border-radius:18px;line-height:1.45;overflow-wrap:anywhere}
.b.me{align-self:flex-end;background:#0B84FF;color:#fff}
.b.them{align-self:flex-start;background:#E9E9EB}

/* read */
.read{background:linear-gradient(160deg,#1E1C2B,#14131C);color:#fff;border-radius:22px;padding:22px;box-shadow:0 0 0 1px rgba(155,135,254,.3),0 30px 70px -30px rgba(20,19,28,.6)}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:8px}
.chip{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-radius:8px;font-size:12px;font-weight:600;background:rgba(255,255,255,.09);color:rgba(255,255,255,.88)}
.chip.tone{background:rgba(155,135,254,.2);color:#DDD5FF}
.chip i{width:7px;height:7px;border-radius:50%;background:#6FB58C}
.chip.risk-medium i{background:#DDA055}.chip.risk-high i{background:#E07B70}
.chip.risk-high{background:rgba(224,123,112,.18);color:#FFC9C2}
.read .row{padding:12px 0 2px;border-top:1px solid rgba(255,255,255,.08);margin-top:10px}
.read .row:first-of-type{border-top:0}
.read .row .k{color:#B7A9FF}
.read .row p{font-size:15px;line-height:1.6;color:rgba(255,255,255,.88)}
.read .row.hl p{font-family:var(--disp);font-size:17px;font-weight:500;color:#fff;line-height:1.45}
.read .row.warn .k{color:#FFB3A8}

/* replies */
.replies{display:grid;gap:12px}
.reply{position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px 92px 16px 20px}
.reply.best{border-color:rgba(125,108,237,.4);box-shadow:0 18px 44px -26px rgba(125,108,237,.55)}
.rt{font-size:16px;line-height:1.55;overflow-wrap:anywhere}
.gloss{margin-top:6px;font-size:14px;color:var(--ink-3)}
.copy{position:absolute;right:14px;top:50%;transform:translateY(-50%);font:600 13px var(--disp);color:var(--acc-ink);background:rgba(125,108,237,.1);border:0;border-radius:9px;height:32px;padding:0 12px;cursor:pointer}
.copy:hover{background:rgba(125,108,237,.18)}
@media(max-width:560px){.reply{padding:16px 18px 54px}.copy{top:auto;bottom:12px;transform:none}}

.two{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.two section{margin-top:52px}
@media(max-width:720px){.two{grid-template-columns:1fr;gap:0}}
ul.ok,ul.no{list-style:none;display:grid;gap:10px}
ul.ok li,ul.no li{position:relative;padding-left:28px;color:var(--ink-2);font-size:15.5px}
ul.ok li::before,ul.no li::before{position:absolute;left:0;top:1px;width:19px;height:19px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700}
ul.ok li::before{content:"✓";background:rgba(62,154,102,.14);color:var(--pos)}
ul.no li::before{content:"✕";background:rgba(194,73,60,.12);color:var(--dan)}
.sims{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(max-width:620px){.sims{grid-template-columns:1fr}}
.sim{background:#fff;border:1px solid var(--line);border-radius:14px;padding:13px 16px;display:flex;flex-direction:column;gap:2px}
.sim b{font-family:var(--disp);font-weight:600;font-size:15px}
.sim span{font-size:14px;color:var(--ink-2)}
.note{margin-top:22px;font-size:13px;color:var(--ink-3)}
.rels{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(max-width:620px){.rels{grid-template-columns:1fr}}
.rel{display:flex;align-items:center;justify-content:space-between;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;font-family:var(--disp);font-weight:500;transition:border-color .2s}
.rel:hover{border-color:rgba(125,108,237,.45)}
.rel b{color:var(--acc)}

/* hub */
.hub{padding:56px 28px 40px}
.hub-head{text-align:center;max-width:44rem;margin:0 auto 20px}
.hub h1{font-size:clamp(36px,5.6vw,60px);line-height:1.05;font-weight:600;letter-spacing:-.04em;margin:16px 0 18px}
html[lang=zh-CN] .hub h1{line-height:1.2;letter-spacing:-.01em}
.lead{color:var(--ink-2);font-size:18px;line-height:1.7}
.group{margin-top:56px}
.group h2{font-size:22px;font-weight:600;margin-bottom:16px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:900px){.cards{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.cards{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px 20px 22px;box-shadow:0 14px 40px -26px rgba(26,26,34,.2);transition:transform .15s,border-color .2s;display:flex;flex-direction:column;gap:8px}
.card:hover{transform:translateY(-2px);border-color:rgba(125,108,237,.4)}
.card .q{font-size:13.5px;color:var(--acc-ink);background:rgba(125,108,237,.08);border-radius:10px;padding:8px 10px;line-height:1.45;overflow-wrap:anywhere}
.card h3{font-size:18px;font-weight:600;line-height:1.3}
.card p{font-size:14px;color:var(--ink-2);line-height:1.55}

/* cta + footer */
.cta-band{text-align:center;padding:90px 0 100px}
.cta-band h2{font-family:var(--disp);font-size:clamp(28px,4.4vw,44px);font-weight:600;letter-spacing:-.03em}
.cta-band p{color:var(--ink-2);max-width:36em;margin:14px auto 28px;font-size:16.5px}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
footer{border-top:1px solid var(--line);padding:34px 0 50px;color:var(--ink-3);font-size:13.5px}
.foot{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a:hover{color:var(--ink)}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}