*{box-sizing:border-box;margin:0;padding:0}:root{--bg: #04090d;--panel: #0a141b;--line: #123242;--accent: #35d0ba;--accent-dim: #128a7a;--text: #c8dce2;--muted: #6e8a94;--warn: #ffb547;--hit: #ff5a4d;--ptg-felt: #061017;--ptg-bar: #0a141b;--ptg-accent: #35d0ba;--ptg-seo-bg: #04090d}html{overscroll-behavior-y:none}body{min-height:100%;background:var(--bg);color:var(--text);font-family:Segoe UI,PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-size:16px;overflow-x:clip;touch-action:manipulation}#app-viewport{user-select:none;-webkit-user-select:none}input,textarea{user-select:text;-webkit-user-select:text}button{min-height:46px;padding:10px 18px;border:1px solid var(--line);border-radius:8px;background:#0e1d26;color:var(--text);font-size:16px;cursor:pointer;transition:background .15s,border-color 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12px;border:0;border-radius:8px;background:transparent;color:var(--ptg-bar-text);font:inherit;font-size:15px;text-align:left;cursor:pointer}.ptg-menu-item:hover,.ptg-pi:hover{background:#ffffff14}.ptg-menu-item[aria-checked=true]:after,.ptg-pi[aria-checked=true]:after{content:"✓";margin-left:auto;color:var(--ptg-accent)}.ptg-primary{background:var(--ptg-accent);color:#1b1405;font-weight:600;margin-bottom:4px}.ptg-primary:hover{background:#f6cd6b}.ptg-menu-msg{margin:6px 12px 10px;font-size:14px;color:var(--ptg-bar-dim)}.ptg-sep{border:0;border-top:1px solid var(--ptg-line);margin:4px 0}.ptg-cta{padding:0 4px}.ptg-cta-in{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-radius:17px;background:var(--ptg-accent);color:#1b1405;font-size:14px;font-weight:600;transition:background-color .18s var(--ptg-ease-out)}.ptg-cta:hover,.ptg-cta:focus-visible{background:transparent}.ptg-cta:hover .ptg-cta-in,.ptg-cta:focus-visible .ptg-cta-in{background:#f6cd6b}.ptg-cta-ico{display:inline-flex;line-height:0;flex:none}.ptg-cta-short{display:none}.ptg-capsule{font-size:13px;padding:0 4px}.ptg-capsule[hidden]{display:none}.ptg-pill{display:inline-flex;align-items:center;gap:6px;min-height:30px;padding:0 10px;border-radius:15px;background:#3cc87829;border:1px solid rgba(60,200,120,.5)}.ptg-pulse{width:8px;height:8px;border-radius:50%;background:#3cc878;animation:ptg-breathe 2s var(--ptg-ease-in-out) infinite}.ptg-has-room .ptg-friends-btn{display:none}.ptg-pill:after{content:attr(data-n)}.ptg-capsule .ptg-cap-full{display:none}.ptg-reddot{position:absolute;top:8px;right:8px;width:10px;height:10px;border-radius:50%;background:#ff4d4f;box-shadow:0 0 0 2px var(--ptg-bar)}.ptg-reddot[hidden]{display:none}.ptg-stage{position:relative;flex:1 1 auto;min-height:0;overflow:hidden;background:radial-gradient(ellipse at 50% 40%,color-mix(in srgb,var(--ptg-felt) 82%,#fff 18%),var(--ptg-felt) 70%)}.ptg-dock{position:relative;z-index:20;flex:none;height:40px;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:0 4px 0 12px;background:var(--ptg-bar);border-top:1px solid var(--ptg-line);font-size:14px}.ptg-turn{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ptg-bar-text)}.ptg-guide{align-self:flex-start;margin:-5px 0 0;font-size:13px;color:var(--ptg-accent);flex:none}.ptg-back{position:fixed;right:max(16px,env(safe-area-inset-right));bottom:max(16px,env(safe-area-inset-bottom));z-index:60;min-width:44px;min-height:44px;padding:0 16px;border:0;border-radius:22px;cursor:pointer;background:var(--ptg-accent);color:#1b1405;font:600 14px/1 system-ui,sans-serif;box-shadow:0 6px 18px #00000073;opacity:0;visibility:hidden;transform:translateY(16px);pointer-events:none;transition:opacity .28s var(--ptg-ease-out),transform .28s var(--ptg-ease-out),visibility 0s linear .28s}.ptg-back.ptg-back-on{opacity:1;visibility:visible;transform:none;pointer-events:auto;transition-delay:0s}.ptg-seo{background:var(--ptg-seo-bg);color:var(--ptg-seo-text);font:16px/1.75 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;padding:40px 16px 24px}.ptg-article{max-width:820px;margin:0 auto}.ptg-seo h1{font-size:1.9rem;line-height:1.25;margin:0 0 12px;color:#fff}.ptg-seo h2{font-size:1.4rem;line-height:1.3;margin:2.2em 0 .6em;padding-top:.6em;border-top:1px solid var(--ptg-line);color:#fff;scroll-margin-top:8px}.ptg-seo h3{font-size:1.1rem;margin:1.4em 0 .4em;color:#fff}.ptg-seo p,.ptg-seo li{font-size:16px;line-height:1.75}.ptg-seo a{color:var(--ptg-accent)}.ptg-intro{font-size:1.05rem;color:#b8c4d2}.ptg-seo table{border-collapse:collapse;width:100%;margin:1em 0}.ptg-seo th,.ptg-seo td{border:1px solid var(--ptg-line);padding:8px 10px;text-align:left}.ptg-faq{border-bottom:1px solid var(--ptg-line);padding:6px 0}.ptg-faq summary{cursor:pointer;font-weight:600;min-height:44px;display:flex;align-items:center;color:#fff}.ptg-grid{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}.ptg-grid li{border:1px solid var(--ptg-line);border-radius:10px;padding:12px 14px;display:flex;flex-direction:column;gap:2px}.ptg-grid a{font-weight:600;text-decoration:none;min-height:24px}.ptg-grid span{font-size:14px;color:#93a3b6;line-height:1.4}.ptg-foot{max-width:820px;margin:40px auto 0;padding-top:16px;border-top:1px solid var(--ptg-line);font-size:14px;color:#93a3b6}.ptg-foot p{font-size:14px;margin:0 0 6px}.ptg-foot nav a{display:inline-block;min-height:44px;line-height:44px;padding:0 4px}.ptg-app-pop{width:min(280px,calc(100vw - 8px));min-width:0;max-height:min(80vh,calc(100vh - 56px));max-height:min(80dvh,calc(100dvh - 56px));scrollbar-gutter:stable;overscroll-behavior:contain}.ptg-pl{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:flex;flex-direction:column}.ptg-pt,.ptg-ph{min-width:0;overflow:hidden;text-overflow:ellipsis}.ptg-ph{font-size:12px;line-height:16px;color:var(--ptg-bar-dim)}.ptg-ihint{padding:0 12px 4px}.ptg-app-pop [hidden],.ptg-menu [hidden]{display:none!important}.ptg-ip{box-sizing:border-box;width:100%;min-height:44px;padding:0 10px;border:1px solid var(--ptg-line);border-radius:8px;background:#ffffff0f;color:var(--ptg-bar-text);font:inherit;font-size:16px}.ptg-ip::placeholder{color:var(--ptg-bar-dim)}.ptg-ip:focus-visible{outline:2px solid var(--ptg-accent);outline-offset:1px}.ptg-info{padding:4px 12px 8px}.ptg-info .ptg-sec{padding:4px 0 2px}.ptg-it{font-size:14px;line-height:20px;color:var(--ptg-bar-text);white-space:pre-line;overflow-wrap:anywhere}.ptg-mi{flex:none;width:24px;margin-right:8px;text-align:center}.ptg-sec{padding:8px 12px 2px;font-size:13px;color:var(--ptg-bar-dim)}.ptg-sec:not(:first-child){margin-top:2px}.ptg-tg:after,.ptg-tg[aria-checked=true]:after{content:none}.ptg-mt-sw{flex:none;min-width:44px;padding:2px 8px;border-radius:12px;text-align:center;font-size:13px;line-height:20px;background:#ffffff1f;color:var(--ptg-bar-dim);transition:background-color .18s var(--ptg-ease-out),color .18s var(--ptg-ease-out)}.ptg-tg[aria-checked=true] .ptg-mt-sw{background:var(--ptg-accent);color:#1b1405;font-weight:600}.ptg-cv{flex:none;max-width:55%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--ptg-accent);font-size:14px}.ptg-cv:after{content:" ↻"}.ptg-segs{display:flex;gap:4px;padding:0 4px 4px}.ptg-seg{flex:1 1 0;min-width:44px;min-height:44px;padding:0 4px;border:1px solid var(--ptg-line);border-radius:8px;background:transparent;color:var(--ptg-bar-text);font:inherit;font-size:14px;cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:background-color .18s var(--ptg-ease-out)}.ptg-seg:hover{background:#ffffff14}.ptg-seg[aria-checked=true]{background:var(--ptg-accent);border-color:var(--ptg-accent);color:#1b1405;font-weight:600}.ptg-seg:focus-visible{outline:2px solid var(--ptg-accent);outline-offset:1px}.ptg-ext:after{content:"↗";margin-left:auto;color:var(--ptg-bar-dim)}.ptg-avatar{--ptg-av-size: 40px;flex:none;display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box;width:var(--ptg-av-size);height:var(--ptg-av-size);border-radius:50%;overflow:hidden;background:var(--ptg-av-bg, #2a3644);border:1px solid var(--ptg-av-line, rgba(255, 255, 255, .22));user-select:none}.ptg-avatar>.ptg-avatar-img{display:block;width:100%;height:100%;object-fit:cover;border-radius:50%;-webkit-user-drag:none;pointer-events:none}.ptg-avatar>.ptg-avatar-img.ptg-av-miss{visibility:hidden}.ptg-avatar.ptg-av-miss{position:relative;background:var(--ptg-av-bg, #2a3644)}.ptg-avatar.ptg-av-miss:before{content:"";position:absolute;left:36%;top:20%;width:28%;height:28%;border-radius:50%;background:var(--ptg-av-line, rgba(255, 255, 255, .4))}.ptg-avatar.ptg-av-miss:after{content:"";position:absolute;left:22%;top:54%;width:56%;height:56%;border-radius:50%;background:var(--ptg-av-line, rgba(255, 255, 255, .4))}@keyframes ptg-pop{0%{opacity:0;margin-top:-6px}to{opacity:1;margin-top:2px}}@keyframes ptg-breathe{0%,to{opacity:.35}50%{opacity:1}}@media(min-width:800px){.ptg-has-room .ptg-friends-btn{display:inline-flex}.ptg-capsule{position:absolute;left:100%;top:50%;margin-left:6px;transform:translateY(-50%)}.ptg-pill:after{content:none}.ptg-capsule .ptg-cap-full{display:inline}}@media(min-width:1000px){.ptg-left .ptg-brand,.ptg-mode-prefix,.ptg-diff,.ptg-xtra{display:inline-flex}.ptg-diff{display:block}.ptg-xtra{align-items:center}.ptg-mode-ico,.ptg-menu-m{display:none}.ptg-top{padding:0 8px;column-gap:6px}}@media(min-width:600px)and (max-width:999px){:root{--ptg-mode-max: 11rem}}@media(max-width:599px){.ptg-cta-short{display:inline}.ptg-cta-full{display:none}.ptg-cta-in{padding:0 10px;gap:4px}.ptg-mode-btn{padding:0 6px;gap:4px}.ptg-seo h1{font-size:1.55rem}}@media(max-width:359px){.ptg-cta-short{display:none}.ptg-cta-in{padding:0 9px}.ptg-mode-btn{padding:0 4px}.ptg-capsule{padding:0}.ptg-pill{padding:0 6px}}@media(max-height:520px)and (orientation:landscape){.ptg-top{height:40px}.ptg-dock{height:36px}.ptg-guide{margin-top:-9px}}@media(prefers-reduced-motion:reduce){.ptg-menu,.ptg-pulse{animation:none}.ptg-back{transition:none}}@font-face{font-family:PT Arabic;font-weight:400;font-display:swap;src:url(/fonts/pt-arabic-400.woff2) format("woff2");unicode-range:U+0600-06FF,U+FB50-FDFF,U+FE70-FEFF}@font-face{font-family:PT Arabic;font-weight:700;font-display:swap;src:url(/fonts/pt-arabic-700.woff2) format("woff2");unicode-range:U+0600-06FF,U+FB50-FDFF,U+FE70-FEFF}@font-face{font-family:PT Devanagari;font-weight:400;font-display:swap;src:url(/fonts/pt-devanagari-400.woff2) format("woff2");unicode-range:U+0900-097F,U+A8E0-A8FF}@font-face{font-family:PT Devanagari;font-weight:700;font-display:swap;src:url(/fonts/pt-devanagari-700.woff2) format("woff2");unicode-range:U+0900-097F,U+A8E0-A8FF}@font-face{font-family:PT Bengali;font-weight:400;font-display:swap;src:url(/fonts/pt-bengali-400.woff2) format("woff2");unicode-range:U+0980-09FF}@font-face{font-family:PT Bengali;font-weight:700;font-display:swap;src:url(/fonts/pt-bengali-700.woff2) format("woff2");unicode-range:U+0980-09FF}@font-face{font-family:PT Tamil;font-weight:400;font-display:swap;src:url(/fonts/pt-tamil-400.woff2) format("woff2");unicode-range:U+0B80-0BFF}@font-face{font-family:PT Tamil;font-weight:700;font-display:swap;src:url(/fonts/pt-tamil-700.woff2) format("woff2");unicode-range:U+0B80-0BFF}@font-face{font-family:PT LangNames;font-weight:400;font-display:swap;src:url(/fonts/langnames-arabic.woff2) format("woff2");unicode-range:U+0600-06FF,U+FB50-FDFF,U+FE70-FEFF}@font-face{font-family:PT LangNames;font-weight:400;font-display:swap;src:url(/fonts/langnames-devanagari.woff2) format("woff2");unicode-range:U+0900-097F,U+A8E0-A8FF}@font-face{font-family:PT LangNames;font-weight:400;font-display:swap;src:url(/fonts/langnames-bengali.woff2) format("woff2");unicode-range:U+0980-09FF}@font-face{font-family:PT LangNames;font-weight:400;font-display:swap;src:url(/fonts/langnames-tamil.woff2) format("woff2");unicode-range:U+0B80-0BFF}html:lang(ar),html:lang(ur){--pt-fonts: "PT Arabic", sans-serif}html:lang(hi),html:lang(ne),html:lang(mr){--pt-fonts: "PT Devanagari", sans-serif}html:lang(bn){--pt-fonts: "PT Bengali", sans-serif}html:lang(ta){--pt-fonts: "PT Tamil", sans-serif}