:root{color:#0f1419;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--twitter-blue:#1d9bf0;--ink:#0f1419;--muted:#536471;--line:#eff3f4;--surface:#fff;--canvas:#f7f9f9;--navy:#fff;--navy-soft:#f7f9f9;--blue:var(--twitter-blue);--blue-dark:#1a8cd8;--blue-soft:#e8f5fd;--purple:var(--twitter-blue);--green:var(--twitter-blue);--green-soft:#e8f5fd;--amber:#536471;--amber-soft:#f7f9f9;--shadow:0 8px 24px #0f14190f;background:#f7f9f9;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--canvas);min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible+.custom-check{outline-offset:3px;outline:3px solid #1d9bf052}a{color:inherit}p,h1,h2{margin-top:0}.site-shell{min-height:100vh;overflow:hidden}.site-header{color:#dbe6f6;background:var(--navy);border-bottom:1px solid #ffffff17;justify-content:space-between;align-items:center;height:72px;padding:0 max(24px,50vw - 590px);display:flex}.brand{color:#fff;letter-spacing:.01em;align-items:center;gap:12px;font-size:15px;font-weight:650;text-decoration:none;display:inline-flex}.brand strong{color:#8390a5;font-weight:500}.brand-mark{color:#fff;background:linear-gradient(145deg,#4b8cff,#1557e5);border:1px solid #ffffff47;border-radius:10px;place-items:center;width:34px;height:34px;font-size:16px;font-weight:800;display:grid;box-shadow:inset 0 1px #ffffff3d,0 8px 20px #1351d340}.brand-mark.small{border-radius:9px;width:30px;height:30px;font-size:14px}.header-meta{color:#8f9cb1;align-items:center;gap:9px;font-size:12px;display:flex}.status-dot{background:#3dd9a0;border-radius:50%;width:7px;height:7px;box-shadow:0 0 0 4px #3dd9a01a}.hero-section{color:#fff;background:radial-gradient(circle at 81% 30%, #246bfd38, transparent 27%), radial-gradient(circle at 12% 115%, #3475ff24, transparent 31%), var(--navy);grid-template-columns:minmax(0,1fr) 350px;gap:80px;min-height:480px;padding:74px max(24px,50vw - 590px) 84px;display:grid;position:relative}.hero-section:before,.hero-section:after{content:"";pointer-events:none;position:absolute}.hero-section:before{opacity:.28;background-image:linear-gradient(#ffffff09 1px,#0000 1px),linear-gradient(90deg,#ffffff09 1px,#0000 1px);background-size:44px 44px;inset:0;-webkit-mask-image:linear-gradient(90deg,#000,#0000 75%);mask-image:linear-gradient(90deg,#000,#0000 75%)}.hero-section:after{border:1px solid #538bff17;border-radius:50%;width:250px;height:250px;top:54px;right:max(24px,50vw - 590px);box-shadow:0 0 0 48px #538bff09,0 0 0 96px #538bff05}.hero-copy,.progress-card{z-index:1;position:relative}.kicker{gap:8px;margin-bottom:22px;display:flex}.kicker span{color:#95bcff;letter-spacing:.08em;background:#246bfd1f;border:1px solid #568fff33;border-radius:6px;padding:6px 10px;font-size:11px;font-weight:700}.hero-copy h1{letter-spacing:-.047em;max-width:720px;margin-bottom:20px;font-size:clamp(38px,5vw,62px);line-height:1.13}.hero-copy h1 em{color:#76a7ff;font-style:normal}.hero-lead{color:#9eabc0;max-width:650px;margin-bottom:36px;font-size:16px;line-height:1.8}.platform-picker{align-items:center;gap:14px;display:inline-flex}.platform-label{color:#7f8da3;font-size:12px}.platform-buttons{background:#ffffff0e;border:1px solid #ffffff1a;border-radius:12px;flex-wrap:wrap;gap:5px;padding:5px;display:flex}.platform-buttons button{color:#8290a5;cursor:pointer;background:0 0;border:0;border-radius:8px;flex:96px;align-items:center;gap:8px;min-height:38px;padding:0 13px;font-size:12px;font-weight:650;transition:color .16s,background .16s,transform .16s;display:flex}.platform-icon{color:currentColor;background:#5364711a;border-radius:50%;place-items:center;width:18px;height:18px;font-size:10px;font-weight:800;display:grid}.platform-buttons button:hover{color:#dfe8f7}.platform-buttons button[aria-pressed=true]{color:#fff;background:var(--blue);box-shadow:0 7px 20px #246bfd4d}[data-os=macos] .platform-buttons button[aria-pressed=true]{background:var(--purple);box-shadow:0 7px 20px #7657d54d}.platform-buttons svg{fill:currentColor;width:16px;height:16px}.progress-card{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#12233abd;border:1px solid #ffffff1a;border-radius:18px;align-self:center;align-items:center;gap:23px;padding:28px;display:flex;box-shadow:0 26px 60px #00000038}.progress-orbit{background:conic-gradient(#4a86fb var(--progress), #ffffff14 0);border-radius:50%;flex:0 0 86px;place-items:center;width:86px;height:86px;display:grid}.progress-orbit:before{content:"";background:#101f34;border-radius:50%;grid-area:1/1;width:72px;height:72px}.progress-orbit div{grid-area:1/1;position:relative}.progress-orbit span{color:#708097;font-size:12px}.progress-copy{min-width:0}.progress-copy>span{color:#708097;letter-spacing:.12em;text-transform:uppercase;margin-bottom:7px;font-size:10px;font-weight:750;display:block}.progress-copy strong{margin-bottom:7px;font-size:15px;display:block}.progress-copy p{color:#77879e;margin:0;font-size:11px;line-height:1.55}.privacy-note{z-index:2;width:min(100% - 48px,1180px);min-height:76px;box-shadow:var(--shadow);background:#fff;border:1px solid #e2e8f0;border-radius:13px;align-items:center;gap:15px;margin:-31px auto 64px;padding:17px 22px;display:flex;position:relative}.privacy-note svg{width:27px;height:27px;fill:var(--blue);background:var(--blue-soft);border-radius:8px;flex:none;padding:6px}.privacy-note div{flex-direction:column;gap:3px;display:flex}.privacy-note strong{color:#21304a;font-size:12px}.privacy-note span{color:#7a8699;font-size:12px;line-height:1.5}.guide-layout{grid-template-columns:235px minmax(0,1fr);gap:46px;width:min(100% - 48px,1080px);margin:0 auto 110px;display:grid}.task-nav{flex-direction:column;align-self:start;padding:5px 0;display:flex;position:sticky;top:24px}.nav-heading{color:#9aa4b4;letter-spacing:.12em;text-transform:uppercase;margin:0 0 14px 13px;font-size:10px;font-weight:750}.task-nav button{color:#738097;cursor:pointer;text-align:left;background:0 0;border:0;border-radius:10px;align-items:center;gap:12px;width:100%;min-height:47px;padding:7px 12px;font-size:12px;font-weight:600;transition:color .16s,background .16s;display:flex;position:relative}.task-nav button:before{content:"";background:var(--blue);opacity:0;border-radius:3px;width:3px;height:22px;position:absolute;left:-1px}.task-nav button.active{color:var(--blue);background:#eaf1ff}.task-nav button.active:before{opacity:1}.nav-index{color:#9ba6b7;border:1px solid #d9e0e9;border-radius:7px;flex:none;place-items:center;width:25px;height:25px;font-size:9px;font-weight:750;display:grid}.task-nav button.active .nav-index{color:#fff;background:var(--blue);border-color:var(--blue)}.task-nav button.done .nav-index{color:#fff;background:var(--green);border-color:var(--green)}.nav-help{border:1px solid var(--line);background:#fff;border-radius:10px;flex-direction:column;gap:5px;margin-top:26px;padding:17px;display:flex}.nav-help span{color:#9aa5b6;font-size:10px}.nav-help a{color:#4d5c73;font-size:11px;font-weight:650;text-decoration:none}.nav-help a:hover{color:var(--blue)}.guide-content{min-width:0}.task-card{background:var(--surface);border:1px solid var(--line);border-radius:17px;margin-bottom:30px;padding:38px 42px 34px;scroll-margin-top:24px;box-shadow:0 12px 34px #1d304d0e}.task-header{grid-template-columns:48px minmax(0,1fr);gap:18px;margin-bottom:28px;display:grid}.task-number{width:45px;height:45px;color:var(--blue);background:var(--blue-soft);border:1px solid #dbe7ff;border-radius:12px;place-items:center;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;font-weight:750;display:grid}.task-eyebrow,.section-kicker{color:#9ba5b5;letter-spacing:.14em;text-transform:uppercase;margin-bottom:6px;font-size:9px;font-weight:800;display:block}.task-header h2,.troubleshooting h2{color:var(--ink);letter-spacing:-.025em;margin-bottom:9px;font-size:25px;line-height:1.25}.task-header p,.troubleshooting>p{color:#758196;margin-bottom:0;font-size:13px;line-height:1.75}.menu-path{background:#f7f9fc;border:1px solid #e6eaf0;border-radius:9px;align-items:center;gap:14px;min-height:48px;margin-bottom:24px;padding:10px 14px;display:flex}.menu-path span{color:#9aa5b6;letter-spacing:.1em;text-transform:uppercase;flex:none;font-size:9px;font-weight:750}.menu-path code,.example-row code,.faq-list code{color:#33415a;overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px}.example-row{background:#0d1828;border-radius:9px;justify-content:space-between;align-items:center;gap:15px;padding:13px 15px;display:flex}.example-row>div{min-width:0}.example-row span{color:#6e7d93;letter-spacing:.1em;margin-bottom:4px;font-size:8px;font-weight:700;display:block}.example-row code{color:#d7e3f5}.example-row button{color:#9bbcf8;cursor:pointer;background:#467ee51f;border:1px solid #6f9df129;border-radius:7px;align-items:center;gap:6px;padding:7px 10px;font-size:9px;display:inline-flex}.example-row button:hover{color:#fff;background:#467ee538}.example-row svg{fill:currentColor;width:13px;height:13px}.steps-list{margin:0;padding:0;list-style:none}.steps-list li{grid-template-columns:28px minmax(0,1fr);gap:15px;padding-bottom:24px;display:grid;position:relative}.steps-list li:not(:last-child):after{content:"";border-left:1px dashed #d7dfe9;position:absolute;top:28px;bottom:3px;left:13px}.steps-list li>span{z-index:1;color:#63728a;background:#fff;border:1px solid #d7dfe9;border-radius:50%;place-items:center;width:28px;height:28px;font-size:10px;font-weight:750;display:grid;position:relative}.steps-list p{color:#4b586e;margin:3px 0 0;font-size:13px;line-height:1.75}.platform-note{border-left:3px solid var(--blue);background:#f5f8fe;border-radius:0 8px 8px 0;gap:13px;margin:3px 0 24px 43px;padding:14px 16px;display:flex}[data-os=macos] .platform-note{border-left-color:var(--purple);background:#f7f4ff}.os-icon{color:var(--blue);flex:none;font-size:15px;font-weight:800}[data-os=macos] .os-icon{color:var(--purple);font-size:10px}.platform-note strong,.result-grid strong{color:#41506a;margin-bottom:4px;font-size:10px;display:block}.platform-note p,.result-grid p{color:#738198;margin:0;font-size:11px;line-height:1.65}.result-grid{grid-template-columns:1fr 1fr;gap:11px;margin-bottom:24px;display:grid}.success-box,.tip-box{border-radius:9px;gap:11px;padding:15px;display:flex}.success-box{background:var(--green-soft);border:1px solid #d7f1e7}.tip-box{background:var(--amber-soft);border:1px solid #f6e8ca}.result-icon{width:20px;height:20px;color:var(--green);background:#fff;border-radius:50%;flex:none;place-items:center;font-size:10px;font-weight:800;display:grid;box-shadow:0 2px 8px #1c4a3a1a}.tip-box .result-icon{color:var(--amber)}.complete-control{color:#6f7b8f;cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:9px;font-size:11px;display:inline-flex}.complete-control input{opacity:0;width:1px;height:1px;position:absolute}.custom-check{color:#0000;background:#fff;border:1px solid #cdd6e2;border-radius:5px;place-items:center;width:19px;height:19px;font-size:10px;transition:color .14s,background .14s,border-color .14s;display:grid}.complete-control input:checked+.custom-check{color:#fff;background:var(--green);border-color:var(--green)}.troubleshooting{border:1px solid var(--line);background:#fff;border-radius:17px;padding:46px 42px;scroll-margin-top:24px}.faq-list{border-top:1px solid #e7ebf1}.faq-list details{border-bottom:1px solid #e7ebf1}.faq-list summary{color:#34425a;cursor:pointer;justify-content:space-between;align-items:center;gap:20px;padding:19px 2px;font-size:12px;font-weight:650;list-style:none;display:flex}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span:last-child{color:#9ba7b7;font-size:18px;font-weight:300;transition:transform .16s}.faq-list details[open] summary span:last-child{transform:rotate(45deg)}.faq-list details>div{padding:0 36px 18px 2px}.faq-list p{color:#748096;margin:0;font-size:11px;line-height:1.75}.faq-list code{color:#d5e2f6;background:#101c2c;border-radius:6px;margin-top:10px;padding:8px 10px;display:inline-block}.site-footer{color:#8491a4;background:var(--navy);justify-content:space-between;align-items:center;min-height:120px;padding:28px max(24px,50vw - 590px);display:flex}.site-footer>div{align-items:center;gap:12px;display:flex}.site-footer>div>div{flex-direction:column;gap:3px;display:flex}.site-footer strong{color:#d9e3f2;font-size:11px}.site-footer span{font-size:9px}.site-footer nav{gap:24px;display:flex}.site-footer a{color:#7f8ca0;font-size:10px;text-decoration:none}.sr-only{clip:rect(0, 0, 0, 0)!important;white-space:nowrap!important;border:0!important;width:1px!important;height:1px!important;margin:-1px!important;padding:0!important;position:absolute!important;overflow:hidden!important}.site-header{height:56px}.hero-section{background:var(--navy);grid-template-columns:minmax(0,1fr) 250px;gap:34px;min-height:auto;padding-top:38px;padding-bottom:58px}.hero-section:before,.hero-section:after{display:none}.kicker{margin-bottom:12px}.hero-copy h1{letter-spacing:0;max-width:620px;margin-bottom:12px;font-size:clamp(30px,4vw,46px)}.hero-lead{max-width:620px;margin-bottom:22px;font-size:14px;line-height:1.65}.progress-card{border-radius:8px;gap:15px;padding:18px}.progress-orbit{flex-basis:62px;width:62px;height:62px}.progress-orbit:before{width:52px;height:52px}.progress-orbit strong{font-size:20px}.progress-copy p{display:none}.download-panel,.privacy-note,.guide-layout{width:min(100% - 48px,1080px)}.download-panel{z-index:2;border:1px solid var(--line);background:#fff;border-radius:8px;margin:-28px auto 14px;padding:18px;position:relative;box-shadow:0 12px 34px #1d304d14}.panel-heading,.download-head,.download-row{grid-template-columns:170px minmax(220px,1fr) 220px;align-items:center;gap:14px;display:grid}.panel-heading{justify-content:space-between;gap:16px;margin-bottom:14px;display:flex}.panel-heading h2{color:var(--ink);margin:0;font-size:18px}.panel-heading>a,.download-actions a{color:var(--blue);font-size:11px;font-weight:700;text-decoration:none}.download-table{overflow-x:auto}.download-head{color:#96a0b0;letter-spacing:.08em;min-width:690px;padding:0 10px 8px;font-size:10px;font-weight:800}.download-row{border-top:1px solid #edf0f5;min-width:690px;padding:10px}.download-row strong,.download-row span{display:block}.download-row strong{color:#26354d;font-size:13px}.download-row span{color:#7b8798;margin-top:2px;font-size:11px}.download-row code{color:#33415a;overflow-wrap:anywhere;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px}.download-actions{flex-wrap:wrap;gap:8px;display:flex}.download-actions a{background:#edf4ff;border-radius:6px;padding:6px 9px}.download-note{color:#8490a1;margin:10px 0 0;font-size:11px}.privacy-note{min-height:54px;box-shadow:none;border-radius:8px;margin:0 auto 28px;padding:12px 16px}.guide-layout{grid-template-columns:195px minmax(0,1fr);gap:26px;margin-bottom:70px}.task-nav button{border-radius:8px;min-height:40px}.nav-help{border-radius:8px;margin-top:16px;padding:12px}.task-card{box-shadow:none;border-radius:8px;margin-bottom:16px;padding:22px 24px;animation:.16s ease-out task-pop}@keyframes task-pop{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.task-header{grid-template-columns:38px minmax(0,1fr);gap:12px;margin-bottom:14px}.task-number{border-radius:8px;width:34px;height:34px}.task-header h2,.troubleshooting h2{letter-spacing:0;margin-bottom:4px;font-size:19px}.task-header p,.troubleshooting>p{font-size:12px;line-height:1.55}.menu-path{border-radius:6px;min-height:40px;margin-bottom:14px;padding:8px 10px}.example-list{margin:-4px 0 16px}.example-row{border-radius:6px;padding:10px 12px}.steps-list li{grid-template-columns:23px minmax(0,1fr);gap:10px;padding-bottom:12px}.steps-list li:not(:last-child):after{top:23px;left:11px}.steps-list li>span{width:23px;height:23px;font-size:9px}.steps-list p{margin-top:1px;font-size:12px;line-height:1.55}.platform-note{margin:2px 0 14px 33px;padding:10px 12px}.result-grid{margin-bottom:14px}.success-box,.tip-box{border-radius:7px;padding:11px 12px}.troubleshooting{border-radius:8px;padding:24px}.troubleshooting>p{margin-bottom:14px}.faq-list summary{padding:13px 2px}.faq-list details>div{padding-bottom:13px}.site-shell{background:var(--canvas)}.site-header{color:var(--ink);border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffeb}.brand{color:var(--ink)}.brand strong,.header-meta,.platform-label,.progress-copy>span,.progress-orbit span,.download-note,.task-header p,.troubleshooting>p,.platform-note p,.result-grid p,.faq-list p,.site-footer span{color:var(--muted)}.brand-mark{background:var(--twitter-blue);box-shadow:none;border:0;border-radius:50%}.status-dot{background:var(--twitter-blue);box-shadow:0 0 0 4px #1d9bf01f}.hero-section{color:var(--ink);border-bottom:1px solid var(--line);background:linear-gradient(#fff 0%,#f7f9f9 100%)}.kicker span{color:var(--twitter-blue);background:var(--blue-soft);border-color:#0000;border-radius:999px}.hero-lead{color:var(--muted)}.platform-buttons{border-color:var(--line);background:#fff;border-radius:999px}.platform-buttons button{color:var(--muted);border-radius:999px}.platform-buttons button:hover{color:var(--twitter-blue);background:var(--blue-soft)}.platform-buttons button[aria-pressed=true],[data-os=macos] .platform-buttons button[aria-pressed=true]{color:#fff;background:var(--twitter-blue);box-shadow:none}.platform-buttons button[aria-pressed=true] .platform-icon{background:#ffffff38}.progress-card,.download-panel,.privacy-note,.task-card,.nav-help,.troubleshooting{border:1px solid var(--line);box-shadow:none;background:#fff}.progress-card{color:var(--ink)}.progress-orbit{background:conic-gradient(var(--twitter-blue) var(--progress), var(--line) 0)}.progress-orbit:before{background:#fff}.progress-copy strong,.panel-heading h2,.download-row strong,.task-header h2,.troubleshooting h2,.privacy-note strong,.site-footer strong{color:var(--ink)}.panel-heading>a,.download-actions a,.nav-help a,.site-footer a{color:var(--twitter-blue)}.download-head,.task-eyebrow,.section-kicker,.menu-path span,.example-row span,.nav-heading,.nav-help span{color:var(--muted)}.download-row{border-top-color:var(--line)}.download-row code,.menu-path code,.faq-list code{color:var(--ink)}.download-actions a{color:#fff;background:var(--twitter-blue);border-radius:999px}.download-actions a:first-child{color:var(--twitter-blue);background:var(--blue-soft)}.privacy-note svg,.task-number{color:var(--twitter-blue);fill:var(--twitter-blue);background:var(--blue-soft);border-color:#0000}.task-nav button{color:var(--muted);border-radius:999px}.task-nav button:before{background:var(--twitter-blue)}.task-nav button:hover,.task-nav button.active{color:var(--twitter-blue);background:var(--blue-soft)}.nav-index,.steps-list li>span,.custom-check{color:var(--muted);border-color:var(--line);background:#fff}.task-nav button.active .nav-index,.task-nav button.done .nav-index,.complete-control input:checked+.custom-check{color:#fff;background:var(--twitter-blue);border-color:var(--twitter-blue)}.menu-path,.platform-note,[data-os=macos] .platform-note,.success-box,.tip-box{border-color:var(--line);background:#f7f9f9}.platform-note,[data-os=macos] .platform-note{border-left-color:var(--twitter-blue)}.os-icon,[data-os=macos] .os-icon{color:var(--twitter-blue)}.example-row{background:#0f1419}.example-row button{color:#fff;background:var(--twitter-blue);border-color:#0000;border-radius:999px}.example-row button:hover{background:var(--blue-dark)}.success-box,.tip-box{border-radius:8px}.faq-list,.faq-list details{border-color:var(--line)}.faq-list summary{color:var(--ink)}.site-footer{color:var(--muted);border-top:1px solid var(--line);background:#fff}.site-footer a:hover{color:var(--blue-dark)}@media (width<=900px){.hero-section{grid-template-columns:1fr;gap:38px;padding-top:58px;padding-bottom:82px}.hero-section:after{display:none}.progress-card{justify-self:start;width:min(100%,390px)}.guide-layout{grid-template-columns:minmax(0,1fr);gap:24px}.task-nav{z-index:10;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);scrollbar-width:none;background:#f3f6faf0;border-bottom:1px solid #d3dbe6e6;flex-direction:row;gap:7px;margin:0 -24px;padding:12px 24px;position:sticky;top:0;overflow-x:auto}.task-nav::-webkit-scrollbar{display:none}.nav-heading,.nav-help{display:none}.task-nav button{border:1px solid var(--line);background:#fff;flex:none;width:auto;min-height:39px;padding:6px 11px 6px 7px}.task-nav button:before{display:none}.task-nav button.active{border-color:#bcd1ff}.nav-index{width:24px;height:24px}.task-card,.troubleshooting{scroll-margin-top:78px}}@media (width<=640px){.site-header{height:62px;padding-inline:18px}.header-meta{font-size:10px}.hero-section{padding:44px 18px 76px}.hero-copy h1{font-size:clamp(35px,11vw,47px)}.hero-lead{font-size:14px}.platform-picker{display:block}.platform-label{margin-bottom:9px;display:block}.platform-buttons{width:100%}.platform-buttons button{flex:calc(50% - 6px);justify-content:center}.progress-card{padding:20px}.progress-orbit{flex-basis:74px;width:74px;height:74px}.progress-orbit:before{width:62px;height:62px}.privacy-note{align-items:flex-start;width:calc(100% - 36px);margin-bottom:42px}.guide-layout{width:calc(100% - 36px);margin-bottom:72px}.task-nav{margin-inline:-18px;padding-inline:18px}.task-nav button>span:last-child{display:none}.task-nav button{padding-right:7px}.task-card,.troubleshooting{border-radius:14px;padding:28px 21px 26px}.task-header{grid-template-columns:40px minmax(0,1fr);gap:13px}.task-number{width:40px;height:40px}.task-header h2,.troubleshooting h2{font-size:21px}.menu-path{flex-direction:column;align-items:flex-start;gap:5px}.platform-note{margin-left:0}.result-grid{grid-template-columns:1fr}.site-footer{flex-direction:column;align-items:flex-start;gap:24px;padding:30px 18px}}@media (width<=760px){.site-header{gap:12px;height:auto;min-height:56px;padding-block:10px}.hero-section{gap:20px;padding:28px 18px 50px}.hero-copy h1{font-size:clamp(30px,9vw,40px);line-height:1.15}.hero-lead{max-width:none;margin-bottom:18px}.platform-picker,.platform-buttons{width:100%}.platform-buttons{border-radius:18px;grid-template-columns:1fr 1fr;display:grid}.platform-buttons button{justify-content:center;min-width:0}.progress-card{justify-content:flex-start;align-items:center;width:100%}.download-panel,.privacy-note,.guide-layout{width:calc(100% - 28px)}.download-panel{margin-top:-24px;padding:14px}.panel-heading{flex-direction:column;align-items:flex-start;gap:8px}.download-table{gap:10px;display:grid;overflow-x:visible}.download-head{display:none}.download-row{border:1px solid var(--line);border-radius:12px;grid-template-columns:1fr;gap:8px;min-width:0;padding:12px;display:grid;position:relative}.download-row:before{content:"下载项";color:var(--muted);letter-spacing:.08em;font-size:10px;font-weight:800}.download-row code{overflow-wrap:anywhere;word-break:break-word;min-width:0;max-width:100%}.download-actions{grid-template-columns:1fr 1fr;display:grid}.download-actions a{text-align:center;justify-content:center}.privacy-note{margin-bottom:20px}.guide-layout{gap:16px;margin-bottom:52px}.task-nav{margin-inline:-14px;padding-inline:14px}.task-card,.troubleshooting{border-radius:12px;padding:20px 16px}.task-header{grid-template-columns:34px minmax(0,1fr)}.task-number{width:32px;height:32px}.menu-path code,.example-row code,.faq-list code{overflow-wrap:anywhere;word-break:break-word}}@media (width<=420px){.site-header{flex-direction:column;align-items:flex-start}.hero-section{padding-inline:14px}.kicker{flex-wrap:wrap}.platform-buttons{grid-template-columns:1fr}.progress-card{padding:14px}.progress-orbit{flex-basis:58px;width:58px;height:58px}.progress-orbit:before{width:48px;height:48px}.download-panel,.privacy-note,.guide-layout{width:calc(100% - 20px)}.download-actions{grid-template-columns:1fr}.task-nav{gap:6px;margin-inline:-10px;padding-inline:10px}.task-nav button{min-height:36px;padding:6px}.task-nav button>span:last-child{display:none}.nav-index{width:22px;height:22px}.task-header{grid-template-columns:1fr}.task-number{width:max-content;min-width:32px;padding-inline:8px}.example-row,.result-grid{grid-template-columns:1fr}.example-row,.success-box,.tip-box,.platform-note{padding:10px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}@media print{:root{background:#fff}.site-header,.platform-picker,.progress-card,.privacy-note,.task-nav,.complete-control,.example-row button,.site-footer{display:none!important}.hero-section{color:#111;background:#fff;min-height:auto;padding:30px 0;display:block}.hero-copy h1 em,.hero-lead{color:#111}.guide-layout{width:100%;margin:0;display:block}.task-card,.troubleshooting{break-inside:avoid;box-shadow:none}.faq-list details>div{display:block!important}}