:root{font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","PingFang SC","Microsoft YaHei",sans-serif;color:#1d1d1f;background:#f5f5f7;line-height:1.5;--ink:#1d1d1f;--muted:#6e6e73;--blue:#0071e3;--blue-soft:#e8f2ff;--line:#d2d2d7;--card:#fff;--green:#1b8f5a}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(180deg,#fbfbfd 0,#f5f5f7 44%,#fff 100%)}.topbar{height:72px;padding:0 max(24px,calc((100% - 1180px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e5e5e7;background:#fbfbfdea;backdrop-filter:blur(18px);position:sticky;top:0;z-index:5}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);font-weight:700;letter-spacing:-.4px}.brand small{display:block;color:#86868b;font:10px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:1.25px;font-weight:500}.brand-mark{display:grid;place-items:center;width:31px;height:31px;border-radius:10px;background:var(--blue);color:#fff;font-weight:800}.topbar nav{display:flex;gap:28px}.topbar nav a{color:#515154;text-decoration:none;font-size:14px}.topbar nav a:hover{color:var(--blue)}main{max-width:1180px;margin:auto;padding:92px 24px 110px}.hero{min-height:530px;display:grid;grid-template-columns:1fr .9fr;gap:60px;align-items:center}.eyebrow,.kicker{color:var(--blue);font:700 11px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:1.5px}.pulse{display:inline-block;width:7px;height:7px;background:var(--blue);border-radius:50%;margin-right:8px;box-shadow:0 0 0 5px #0071e315}.hero h1{font-size:clamp(56px,8.5vw,112px);line-height:.96;letter-spacing:-6px;margin:22px 0 30px;font-weight:700}.hero h1 em{font-style:normal;background:linear-gradient(100deg,#0071e3,#6e5ce6);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-copy>p:last-of-type{max-width:550px;color:var(--muted);font-size:18px}.hero-link{display:inline-flex;gap:16px;align-items:center;margin-top:28px;color:var(--blue);text-decoration:none;font-weight:600}.hero-link span{font-size:22px;transition:transform .2s}.hero-link:hover span{transform:translateX(4px)}.hero-visual{min-height:390px;position:relative;display:grid;place-items:center;border-radius:34px;background:radial-gradient(circle at 50% 48%,#fff 0,#edf5ff 42%,#dfeeff 100%);overflow:hidden;box-shadow:inset 0 0 0 1px #fff,0 22px 60px #0071e314}.hero-visual:before,.hero-visual:after{content:"";position:absolute;border:1px solid #0071e31e;border-radius:50%;width:350px;height:350px}.hero-visual:after{width:500px;height:500px;border-color:#6e5ce61a}.hero-orb{width:190px;height:190px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#fff,#cfe5ff);box-shadow:0 20px 50px #0071e329,0 0 0 18px #ffffff80;position:relative;z-index:1}.hero-orb:after{content:"";position:absolute;inset:24px;border:1px solid #0071e342;border-radius:50%}.hero-orb span{font:700 34px ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--blue)}.floating-note{position:absolute;z-index:2;background:#ffffffc9;backdrop-filter:blur(12px);border:1px solid #fff;border-radius:999px;padding:10px 14px;color:#515154;font-size:12px;box-shadow:0 8px 25px #0071e314}.note-one{top:24%;left:12%}.note-two{right:10%;bottom:23%;color:var(--blue);font:11px ui-monospace,SFMono-Regular,Menlo,monospace}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:0 0 88px}.metrics div{padding:24px 26px;background:#fff;border:1px solid #e5e5e7;border-radius:20px;box-shadow:0 8px 28px #1d1d1f08}.metrics span{display:block;color:#86868b;font:12px ui-monospace,SFMono-Regular,Menlo,monospace}.metrics strong{display:block;font-size:24px;letter-spacing:-.5px;margin-top:9px}.metrics small{display:block;color:#86868b;font:10px ui-monospace,SFMono-Regular,Menlo,monospace;margin-top:6px}.workspace{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(320px,.75fr);gap:58px}.section-head{display:flex;justify-content:space-between;align-items:end;border-bottom:1px solid var(--line);padding-bottom:18px}.section-head h2,.submit-card h2,.answer-grid h2,.faq h2{font-size:30px;letter-spacing:-1.2px;margin:7px 0 0}.refresh{border:0;border-radius:999px;background:#fff;color:var(--blue);font-size:13px;padding:9px 14px;cursor:pointer;box-shadow:0 1px 4px #1d1d1f12}.refresh:hover{background:var(--blue-soft)}.notice{display:flex;gap:10px;margin:18px 0;padding:14px 16px;background:#fff;border:1px solid #e5e5e7;border-radius:14px;color:var(--muted);font-size:13px}.notice-icon{display:grid;place-items:center;flex:0 0 18px;width:18px;height:18px;border-radius:50%;background:var(--blue-soft);color:var(--blue);font-weight:800;font-size:12px}.code-list{display:grid;gap:10px}.code-item{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;padding:19px 20px;background:#fff;border:1px solid #e5e5e7;border-radius:16px;transition:border-color .2s,transform .2s,box-shadow .2s}.code-item:hover{transform:translateY(-2px);border-color:#b8d8fa;box-shadow:0 10px 24px #1d1d1f0c}.code-value{font:700 20px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.5px;color:var(--ink)}.code-note{color:var(--muted);font-size:13px;margin-top:3px}.code-date{color:#86868b;font:11px ui-monospace,SFMono-Regular,Menlo,monospace;margin-top:8px}.uses{text-align:right;min-width:92px}.uses strong{display:block;font-size:24px;line-height:1;color:var(--blue)}.uses span{display:block;color:#86868b;font:11px ui-monospace,SFMono-Regular,Menlo,monospace;margin-top:5px}.use-button{margin-top:9px;border:0;border-radius:999px;color:var(--blue);background:var(--blue-soft);padding:8px 12px;font-size:12px;cursor:pointer}.use-button:hover{background:#d7eaff}.submit-card{align-self:start;background:#fff;border:1px solid #e5e5e7;border-radius:24px;padding:30px;box-shadow:0 14px 38px #1d1d1f0c}.submit-card>p{color:var(--muted);font-size:14px;margin:12px 0 24px}.submit-card form{display:grid;gap:9px}.submit-card label{font:12px ui-monospace,SFMono-Regular,Menlo,monospace;color:#515154;margin-top:5px}.submit-card label span{color:#86868b}input{width:100%;padding:13px 14px;border:1px solid #d2d2d7;background:#fbfbfd;color:var(--ink);border-radius:12px;font:inherit}input:focus{outline:3px solid #0071e326;border-color:var(--blue)}.primary{border:0;border-radius:999px;background:var(--blue);color:#fff;padding:13px 18px;margin-top:10px;font-weight:700;cursor:pointer}.primary:hover{background:#0077ed}.primary span{margin-left:12px}.form-message{min-height:20px;color:var(--muted);font-size:13px;margin:2px 0}.form-message.error{color:#d70015}.form-message.success{color:var(--green)}.rule{border-top:1px solid #e5e5e7;margin-top:24px;padding-top:18px;color:#86868b;font:11px ui-monospace,SFMono-Regular,Menlo,monospace}.rule strong{color:#515154}.loading,.empty{padding:36px;text-align:center;color:#86868b;background:#fff;border:1px dashed #d2d2d7;border-radius:16px}.error-box{padding:18px;background:#fff2f2;border:1px solid #ffc5c5;border-radius:14px;color:#b00020;font-size:14px}.answer-grid,.faq{display:grid;grid-template-columns:1fr 1.15fr;gap:72px;border-top:1px solid var(--line);margin-top:110px;padding-top:36px}.answer-grid p,.faq p{color:var(--muted);font-size:16px}.muted{color:#86868b!important;font-size:13px!important}.faq-list{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line);padding:18px 0}.faq summary{cursor:pointer;color:var(--ink);font-size:16px;font-weight:600}.faq summary::marker{color:var(--blue)}footer{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;padding:24px;color:#86868b;border-top:1px solid #e5e5e7;background:#f5f5f7;font:11px ui-monospace,SFMono-Regular,Menlo,monospace}@media(max-width:820px){.topbar nav{gap:13px}.hero{grid-template-columns:1fr;gap:42px;min-height:auto}.hero-visual{min-height:330px}.workspace,.answer-grid,.faq{grid-template-columns:1fr;gap:30px}.submit-card{order:-1}.metrics{margin-top:70px}}@media(max-width:520px){main{padding:56px 16px 80px}.topbar{padding:0 16px}.topbar nav a:nth-child(2){display:none}.hero h1{font-size:62px;letter-spacing:-4px}.hero-visual{min-height:280px;border-radius:25px}.hero-orb{width:145px;height:145px}.floating-note{font-size:11px}.note-one{left:7%}.note-two{right:5%}.metrics{grid-template-columns:1fr}.code-item{grid-template-columns:1fr;gap:12px}.uses{text-align:left}.uses strong,.uses span{display:inline;margin-right:7px}.use-button{display:block;margin-top:9px}}
.language-switch{border:0;background:transparent;color:var(--blue);font-size:13px;padding:6px 0;cursor:pointer}.code-actions{display:flex;gap:7px;justify-content:flex-end;margin-top:9px}.code-actions button{margin-top:0}.copy-button{border:0;border-radius:999px;color:#515154;background:#f2f2f7;padding:8px 12px;font-size:12px;cursor:pointer}.copy-button:hover{background:#e5e5ea}.use-button{margin-top:0}.hero{min-height:380px}.workspace{scroll-margin-top:90px}
@media(max-width:520px){body{overflow-x:hidden}.topbar{height:60px;padding:0 14px}.brand{font-size:14px;gap:8px}.brand small{display:none}.brand-mark{width:28px;height:28px;border-radius:9px}.topbar nav{gap:10px;align-items:center}.topbar nav a{font-size:12px}.topbar nav a:first-child{display:none}.topbar nav a:nth-child(2){display:inline}.topbar nav a:nth-child(3){display:none}.language-switch{font-size:12px;background:#e8f2ff;border-radius:999px;padding:7px 10px}.hero{min-height:0;padding:34px 0 28px;gap:24px}.hero h1{font-size:52px;line-height:1;letter-spacing:-3px;margin:16px 0 20px}.hero-copy>p:last-of-type{font-size:16px;line-height:1.65;margin-bottom:0}.hero-link{margin-top:20px}.hero-visual{min-height:205px;border-radius:22px}.hero-orb{width:112px;height:112px}.hero-orb:after{inset:15px}.hero-orb span{font-size:23px}.hero-visual:before{width:210px;height:210px}.hero-visual:after{width:310px;height:310px}.floating-note{padding:8px 10px;font-size:10px}.note-one{top:18%;left:7%}.note-two{right:6%;bottom:17%;font-size:9px}.metrics{display:flex;gap:8px;margin:0 0 34px;overflow:hidden}.metrics div{flex:1;min-width:0;padding:14px 10px;border-radius:14px}.metrics div:nth-child(3){display:none}.metrics strong{font-size:18px}.metrics small{font-size:8px;line-height:1.2}.workspace{display:flex;flex-direction:column;gap:22px}.submit-card{order:initial;width:100%;padding:22px;border-radius:20px}.list-column{width:100%}.section-head{padding-bottom:13px}.section-head h2,.submit-card h2{font-size:25px}.notice{margin:13px 0;padding:12px;font-size:12px;line-height:1.55}.code-list{gap:8px}.code-item{display:block;padding:16px;border-radius:15px}.code-value{font-size:19px}.code-note{font-size:12px}.code-date{margin-top:6px}.uses{display:flex;align-items:center;flex-wrap:wrap;gap:7px;margin-top:13px}.uses strong{font-size:21px}.uses span{margin:0;font-size:11px}.code-actions{margin:0 0 0 auto;gap:6px}.code-actions button{padding:9px 12px;min-height:36px}.copy-button,.use-button{font-size:12px}.answer-grid,.faq{margin-top:64px;padding-top:26px;gap:18px}.answer-grid h2,.faq h2{font-size:25px}.answer-grid p,.faq p{font-size:15px}.faq details{padding:16px 0}.faq summary{font-size:15px}footer{padding:22px 16px;text-align:center;font-size:10px;line-height:1.6}}
.hero{min-height:0;max-width:760px;margin:0 auto 44px;text-align:center}.hero-copy{width:100%}.hero h1{margin-top:16px}.hero-copy>p:last-of-type{margin-left:auto;margin-right:auto}.workspace{grid-template-columns:minmax(0,1.45fr) minmax(320px,.75fr);align-items:start}.side-tools{display:grid;gap:16px;align-self:start}.tool-card{background:#fff;border:1px solid #e5e5e7;border-radius:20px;padding:22px;box-shadow:0 10px 30px #1d1d1f08}.tool-card h3{font-size:22px;letter-spacing:-.5px;margin:8px 0}.tool-card p{color:var(--muted);font-size:14px;margin:0 0 14px}.tool-link{display:inline-flex;gap:10px;align-items:center;color:var(--blue);font-weight:600;text-decoration:none}.tool-link span{font-size:18px}.tool-card small{display:block;color:#86868b;font-size:12px;line-height:1.5;margin-top:14px}@media(max-width:820px){.hero{margin-bottom:38px}.side-tools{order:initial}}@media(max-width:520px){.hero{padding:22px 0 0;margin-bottom:28px;text-align:left}.hero h1{font-size:52px;margin-top:15px}.hero-copy>p:last-of-type{margin-left:0}.side-tools{gap:12px}.tool-card{padding:20px;border-radius:18px}}
.hero h1{white-space:nowrap}.share-button{border:0;border-radius:999px;color:#0071e3;background:#e8f2ff;padding:8px 12px;font-size:12px;cursor:pointer}.share-button:hover{background:#d7eaff}.share-button:disabled{opacity:.55;cursor:wait}.seo-guide{display:grid;grid-template-columns:1fr 1.15fr;gap:72px;border-top:1px solid var(--line);margin-top:110px;padding-top:36px}.seo-guide h2{font-size:30px;letter-spacing:-1.2px;margin:7px 0 0}.guide-copy>p{color:var(--muted);font-size:16px}.guide-steps{display:grid;gap:10px;margin:26px 0}.guide-steps div{display:flex;align-items:center;gap:16px;padding:14px 16px;background:#fff;border:1px solid #e5e5e7;border-radius:14px}.guide-steps strong{color:var(--blue);font:700 11px ui-monospace,SFMono-Regular,Menlo,monospace}.guide-steps span{font-size:15px}@media(max-width:820px){.seo-guide{grid-template-columns:1fr;gap:30px}}@media(max-width:520px){.seo-guide{margin-top:64px;padding-top:26px;gap:18px}.seo-guide h2{font-size:25px}.guide-copy>p{font-size:15px}.guide-steps span{font-size:14px}}
.anchor-target{height:0;scroll-margin-top:90px}
.temp-page main{max-width:1040px;padding-top:72px}.temp-intro{max-width:680px;margin:0 auto 34px;text-align:center}.temp-intro h1{font-size:clamp(42px,7vw,76px);letter-spacing:-4px;line-height:1;margin:16px 0}.temp-intro p{color:var(--muted);font-size:17px;margin:0}.mail-shell{background:#fff;border:1px solid #e5e5e7;border-radius:28px;padding:28px;box-shadow:0 16px 45px #1d1d1f0c}.mail-toolbar{display:flex;justify-content:space-between;align-items:end;gap:20px;border-bottom:1px solid var(--line);padding-bottom:22px}.mail-address-row{display:flex;align-items:center;gap:12px;margin-top:10px}.mail-address-row strong{font:600 22px ui-monospace,SFMono-Regular,Menlo,monospace;overflow-wrap:anywhere}.mail-actions{display:flex;gap:9px;flex-wrap:wrap;justify-content:flex-end}.secondary-button{border:1px solid #d2d2d7;border-radius:999px;background:#fff;color:#515154;padding:10px 14px;font-size:13px;cursor:pointer}.secondary-button:hover{border-color:#a7c8ef;background:var(--blue-soft)}.secondary-button:disabled{opacity:.45;cursor:not-allowed}.primary.compact{margin:0;padding:10px 16px}.mail-status{min-height:20px;color:var(--green);font-size:13px;margin:15px 0}.mail-status.error{color:#d70015}.mail-grid{display:grid;grid-template-columns:minmax(280px,.85fr) minmax(0,1.15fr);gap:14px}.inbox-panel,.message-panel{min-height:370px;border:1px solid #e5e5e7;border-radius:18px;background:#fbfbfd;overflow:hidden}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid #e5e5e7;background:#fff}.panel-head h2{font-size:20px;margin:0}.panel-head span{display:grid;place-items:center;min-width:25px;height:25px;padding:0 7px;border-radius:999px;background:var(--blue-soft);color:var(--blue);font:12px ui-monospace,SFMono-Regular,Menlo,monospace}.message-list{display:grid;gap:8px;padding:10px}.message-row{display:grid;gap:5px;text-align:left;border:1px solid transparent;border-radius:12px;background:transparent;padding:12px;cursor:pointer;color:var(--ink);font:inherit}.message-row:hover,.message-row.is-new{background:#fff;border-color:#e5e5e7}.message-row-top{display:flex;justify-content:space-between;gap:8px}.message-row strong{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-row time,.message-row small{color:#86868b;font-size:11px}.message-row>span:nth-child(2){font-weight:600;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.message-placeholder{min-height:370px;display:grid;place-content:center;text-align:center;color:#86868b}.message-placeholder span{font-size:34px;margin-bottom:8px}.message-placeholder p{margin:0;font-size:14px}.message-content{padding:22px}.message-meta{display:flex;justify-content:space-between;gap:12px;color:#86868b;font-size:12px}.message-content h2{font-size:22px;margin:15px 0 20px;overflow-wrap:anywhere}.message-content pre{white-space:pre-wrap;overflow-wrap:anywhere;font:14px/1.65 inherit;color:#515154;margin:0}.mail-disclaimer{display:flex;align-items:center;gap:12px;flex-wrap:wrap;border-top:1px solid #e5e5e7;margin-top:20px;padding-top:18px;color:#86868b;font-size:12px}.mail-disclaimer strong{color:#515154}.mail-disclaimer a{color:var(--blue);text-decoration:none;margin-left:auto}.temp-page footer a{color:inherit;text-decoration:none}@media(max-width:700px){.temp-page main{padding:48px 16px 76px}.temp-intro{text-align:left;margin-bottom:24px}.temp-intro h1{font-size:48px;letter-spacing:-2.5px}.temp-intro p{font-size:15px}.mail-shell{padding:18px;border-radius:22px}.mail-toolbar{display:grid;align-items:start}.mail-address-row{align-items:start;flex-direction:column}.mail-address-row strong{font-size:17px}.mail-actions{justify-content:stretch}.mail-actions button{flex:1}.mail-grid{grid-template-columns:1fr}.inbox-panel,.message-panel{min-height:280px}.message-placeholder{min-height:280px}.message-content{padding:16px}.mail-disclaimer a{margin-left:0}}
.message-heading,.body-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.message-heading h2{margin:15px 0 14px}.message-heading .secondary-button,.body-heading .secondary-button{padding:7px 10px;font-size:11px;white-space:nowrap}.verification-row{display:flex;align-items:center;gap:10px;margin:0 0 18px;padding:10px 12px;border-radius:12px;background:var(--blue-soft);color:var(--blue)}.verification-row strong{font:700 17px ui-monospace,SFMono-Regular,Menlo,monospace}.verification-row .secondary-button{margin-left:auto;padding:7px 10px;font-size:11px}.body-heading{border-top:1px solid #e5e5e7;padding-top:16px;margin-bottom:10px;color:#86868b;font-size:12px}.body-heading .secondary-button{color:var(--blue);background:#fff}
.share-menu{position:absolute;right:0;top:calc(100% + 8px);z-index:4;display:grid;gap:6px;min-width:170px;padding:10px;background:#fff;border:1px solid #d2d2d7;border-radius:14px;box-shadow:0 12px 30px #1d1d1f20;text-align:left}.code-actions{position:relative}.share-menu strong{padding:2px 8px;color:#6e6e73;font:700 11px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:1px}.share-menu button{border:0;border-radius:9px;background:#f5f5f7;color:#1d1d1f;padding:9px 10px;text-align:left;font-size:12px;cursor:pointer}.share-menu button:hover{background:#e8f2ff;color:#0071e3}
.code-copy-button{display:block;border:0;background:transparent;padding:0;color:var(--ink);font:700 20px ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.5px;cursor:pointer;text-align:left}.code-copy-button:hover{color:var(--blue)}.share-preview{display:block;padding:4px 8px;color:#6e6e73;font-size:11px;line-height:1.4;overflow-wrap:anywhere}.share-preview b{color:#515154;font-weight:600}
.submitted-share{position:relative;display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:5px;padding:10px 12px;border-radius:12px;background:var(--blue-soft);color:#515154;font-size:12px;line-height:1.4}.submitted-share strong{font:700 13px ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--blue)}.submitted-share .secondary-button{padding:8px 10px;white-space:nowrap;font-size:11px}
