:root{--bg:#08101C;--card:#0F1D2E;--card2:#132639;--txt:#E6F1F8;--mut:#8FA6B8;--acc:#06B6D4;--acc2:#3B82F6;--gold:#FDE68A;--line:#1B3247;--ok:#34D399}
*{box-sizing:border-box}html{scroll-behavior:smooth;scrollbar-gutter:stable}
body{margin:0;background:radial-gradient(110% 60% at 50% -8%,#0E2136 0%,var(--bg) 58%);color:var(--txt);font:16px/1.7 -apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:inherit;text-decoration:none}
.nav{position:sticky;top:0;z-index:30;background:rgba(8,16,28,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{max-width:1100px;margin:0 auto;display:flex;align-items:center;gap:16px;padding:12px 20px;overflow-x:auto}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;white-space:nowrap}
.brand svg{border-radius:7px}
.nav-links{display:flex;gap:15px;font-size:13.5px;color:var(--mut);overflow-x:auto}
.nav-links a{white-space:nowrap;padding:4px 0;transition:color .15s}
.nav-links a:hover{color:var(--acc)}
@media (max-width:720px){
  .nav-in{gap:10px;padding:10px 14px}
  .brand{font-size:0;gap:0}
  .brand svg{width:30px;height:30px}
  .nav-links{gap:12px;font-size:12.5px}
}
.wrap{max-width:1100px;margin:0 auto;padding:30px 20px 20px}
.crumbs{font-size:13px;color:var(--mut);margin-bottom:14px}.crumbs span{margin:0 6px}
h1{font-size:clamp(30px,2.2vw + 16px,42px);line-height:1.18;margin:8px 0 12px}
h2{font-size:22px;margin:32px 0 10px}h3{font-size:17px;margin:18px 0 6px}
main p{max-width:780px}
.lead{color:var(--mut);font-size:16.5px;max-width:660px}
.hero{display:flex;gap:28px;align-items:center;flex-wrap:wrap;margin:4px 0 8px}
.hero img{flex:0 0 300px;max-width:100%;border-radius:18px}
.trustrow{display:flex;gap:6px 18px;flex-wrap:wrap;margin-top:14px;font-size:12.5px;font-weight:700;letter-spacing:.05em;color:var(--mut);text-transform:uppercase}
.trustrow span::before{content:'¹3 A0';color:var(--acc);font-weight:800}
.btn{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(120deg,#0891B2,#2563EB);color:#fff;font-weight:700;padding:12px 24px;border-radius:12px;transition:filter .15s,transform .15s}
.btn:hover{filter:brightness(1.14)}.btn:active{transform:scale(.97)}
.btn:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--acc);font-weight:600}
.btn.ghost:hover{border-color:var(--acc);filter:none;background:rgba(6,182,212,.07)}
.pill{display:inline-block;background:rgba(6,182,212,.12);color:#67E8F9;border:1px solid var(--line);border-radius:999px;font-size:12px;font-weight:700;padding:3px 11px;margin-left:6px;vertical-align:middle}
/* ---- 工具区 ---- */
.um-tool{margin:6px 0 8px}
.um-drop{display:flex;flex-direction:column;align-items:center;gap:9px;text-align:center;background:linear-gradient(160deg,var(--card),var(--card2));border:2px dashed #24506B;border-radius:20px;padding:44px 24px;cursor:pointer;transition:border-color .15s,background .15s}
.um-drop:hover,.um-drop.drag{border-color:var(--acc);background:rgba(6,182,212,.05)}
.um-drop b{font-size:17px}
.um-drop span{font-size:13px;color:var(--mut)}
.um-drop:focus-visible{outline:2px solid var(--acc);outline-offset:3px}
.um-panel{background:linear-gradient(160deg,var(--card),var(--card2));border:1px solid var(--line);border-radius:20px;padding:24px;margin:14px 0}
.um-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:14px}
.um-row:last-of-type{margin-bottom:18px}
.um-lab{font-size:12.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--mut);min-width:110px}
.um-pills{display:flex;gap:8px;flex-wrap:wrap}
[hidden]{display:none!important}/* display:flex 等显式值会盖过 hidden 的 UA 样式，全局守卫 */
/* 自由选框编辑器 */
.um-editor{margin:0 0 14px}
.um-editor canvas{display:block;width:100%;max-width:680px;border-radius:12px;border:1px solid var(--line);cursor:crosshair;touch-action:none}
.um-editor-hint{font-size:13px;color:var(--mut);margin:8px 0 0;max-width:680px}
.upill{border:1px solid var(--line);background:var(--card);color:var(--txt);font:600 13px/1 inherit;font-family:inherit;padding:10px 15px;border-radius:999px;cursor:pointer;transition:border-color .15s,background .15s,color .15s}
.upill:hover{border-color:var(--acc)}
.upill:active{transform:scale(.97)}
.upill:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.upill.active{background:var(--acc);border-color:var(--acc);color:#fff}
.um-list{display:grid;gap:16px;margin:6px 0 16px}
.um-item{background:rgba(255,255,255,.02);border:1px solid var(--line);border-radius:14px;padding:14px}
.um-thumbs{display:flex;gap:14px;flex-wrap:wrap}
.um-thumbs figure{margin:0;flex:1;min-width:180px}
.um-thumbs img{width:100%;border-radius:10px;display:block;max-height:260px;object-fit:contain;background:#060B12}
.um-thumbs figcaption{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--mut);margin-top:6px;text-align:center}
.um-after figcaption{color:var(--ok)}
.um-row{display:flex;align-items:center;gap:10px}
.um-name{font-size:13px;color:var(--mut);flex:1;word-break:break-all}
.um-status{font-size:12.5px;font-weight:700;color:var(--gold)}
.copy-btn{position:relative;border:1px solid var(--line);background:var(--card2);color:var(--acc);font:700 13px/1 inherit;font-family:inherit;padding:10px 16px;border-radius:10px;cursor:pointer;transition:background .15s,color .15s}
.copy-btn:hover{background:var(--acc);color:#fff}
.copy-btn:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.copy-btn[disabled]{opacity:.45;cursor:not-allowed}
.copy-btn{display:inline-grid}
.copy-btn .c1,.copy-btn .c2{grid-area:1/1;display:block}
.copy-btn .c2{visibility:hidden}
.copy-btn.copied .c1{visibility:hidden}
.copy-btn.copied .c2{visibility:visible}
.copy-btn.copied{background:var(--ok);border-color:var(--ok);color:#fff}
.um-actions{display:flex;gap:10px;flex-wrap:wrap}
.ubtn{background:linear-gradient(120deg,#0891B2,#2563EB);border:0;color:#fff;font:700 14.5px/1 inherit;font-family:inherit;padding:13px 22px;border-radius:11px;cursor:pointer;transition:filter .15s,transform .15s}
.ubtn:hover{filter:brightness(1.15)}.ubtn:active{transform:scale(.97)}
.ubtn:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.ubtn.ghost{background:transparent;border:1px solid var(--line);color:var(--mut)}
/* ---- Pro 徽章（预置双态叠层：同格双 span，body.is-pro 切换，几何零位移） ---- */
.pr{display:inline-grid;vertical-align:middle}
.pr>span{grid-area:1/1;white-space:nowrap;transition:opacity .15s}
.pr .p2{opacity:0}
.is-pro .pr .p1{opacity:0}
.is-pro .pr .p2{opacity:1}
.upill .pr{margin-left:7px}
.upill .pr .p1{font-size:11px;font-weight:800;background:rgba(253,230,138,.16);color:var(--gold);border-radius:999px;padding:2px 8px}
.upill .pr .p2{color:inherit}
/* ---- Go Pro 定价卡 ---- */
.pro-box{display:flex;gap:28px;flex-wrap:wrap;align-items:center;background:linear-gradient(160deg,var(--card),var(--card2));border:1px solid var(--line);border-radius:18px;padding:28px;margin:16px 0}
.pro-copy{flex:1 1 430px}
.pro-box h3{margin:0 0 8px;font-size:19px}
.pro-box ul{margin:10px 0 0;padding-left:18px}
.pro-box li{margin:7px 0;font-size:14.5px}
.pro-buy{margin-left:auto;display:flex;flex-direction:column;gap:10px;align-items:center;text-align:center}
.pro-buy .btn{background:linear-gradient(120deg,#059669,#10B981);padding:13px 34px;font-size:15.5px}
.pro-price{font-size:30px;font-weight:800;color:#fff;line-height:1}
.pro-price s{font-size:17px;font-weight:600;color:var(--mut);margin-right:8px;opacity:.75}
.pro-price small{font-size:13px;color:var(--mut);font-weight:600}
.pro-fine{font-size:12px;color:var(--mut);max-width:230px}
.pro-restore{font-size:12.5px;color:var(--mut);max-width:240px;text-align:center}
.pro-linkbtn{background:none;border:0;padding:11px 8px;margin:-11px -8px;color:var(--acc);font:600 12.5px/1.4 inherit;font-family:inherit;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.pro-linkbtn:hover{color:#67E8F9}
.pro-linkbtn:active{transform:scale(.97)}
.pro-linkbtn:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:4px}
/* ---- license key 展示卡 / Restore 弹层（浮层不参与文档流，零位移） ---- */
.lic-mask{position:fixed;inset:0;z-index:70;background:rgba(4,10,18,.72);display:flex;align-items:center;justify-content:center;padding:20px}
.lic-card{background:linear-gradient(160deg,var(--card),var(--card2));border:1px solid var(--line);border-radius:18px;max-width:420px;width:100%;padding:26px;text-align:center}
.lic-card h3{margin:0 0 6px;font-size:18px}
.lic-card p{font-size:13px;color:var(--mut);margin:0 0 14px}
.lic-key{display:block;background:var(--bg);border:1px dashed #24506B;border-radius:10px;padding:13px 10px;font:700 15px/1.5 ui-monospace,Consolas,monospace;letter-spacing:.06em;color:#67E8F9;word-break:break-all;user-select:all}
.lic-card input{width:100%;background:var(--bg);border:1px solid #24506B;border-radius:10px;color:var(--txt);font:700 14px/1.5 ui-monospace,Consolas,monospace;letter-spacing:.06em;padding:13px 12px;text-align:center;margin-bottom:4px}
.lic-card input:focus{outline:none;border-color:var(--acc)}
.lic-card input:focus-visible{outline:2px solid var(--acc);outline-offset:1px}
.lic-actions{display:flex;gap:10px;justify-content:center;margin-top:16px}
.lic-actions .ubtn{display:inline-grid;padding:12px 20px}
.lic-actions .ubtn>span{grid-area:1/1}
.lic-actions .ubtn .c2{visibility:hidden}
.lic-actions .ubtn.copied .c1{visibility:hidden}
.lic-actions .ubtn.copied .c2{visibility:visible}
.lic-actions .ubtn.copied{background:var(--ok)}
/* ---- 内容 ---- */
.prose-p{margin:8px 0}
.faq{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 22px;display:grid;grid-template-columns:1fr 1fr;gap:14px 30px;align-items:start}
.qa{break-inside:avoid}
.faq h3{margin:12px 0 4px;font-size:15.5px}
.faq .qa p{max-width:none;font-size:13.5px}
@media (max-width:860px){.faq{grid-template-columns:1fr}}
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:14px 0}
@media (max-width:920px){.entry-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.entry-grid{grid-template-columns:1fr}}
.entry-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;transition:border-color .15s,transform .15s}
.entry-card:hover{border-color:var(--acc);transform:translateY(-2px)}
.entry-card b{display:block;margin-bottom:4px}
.entry-card span{font-size:13px;color:var(--mut)}
.uv-head{display:flex;align-items:center;gap:10px}
.uv-prog{height:8px;background:#0B1826;border:1px solid var(--line);border-radius:999px;overflow:hidden;margin:10px 0}
.uv-prog i{display:block;height:100%;background:linear-gradient(90deg,var(--acc),var(--acc2));width:0;transition:width .2s}
.uv-cmp{display:flex;gap:14px;flex-wrap:wrap;margin:10px 0}
.uv-cmp figure{margin:0;flex:1;min-width:200px}
.uv-cmp video{width:100%;border-radius:10px;background:#060B12;max-height:300px;display:block}
.uv-cmp figcaption{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--mut);margin-top:6px;text-align:center}
.uv-cmp .um-after{color:var(--ok)}
.uv-meta{font-size:12.5px;color:var(--mut);margin:6px 0 10px}
.hstep{display:flex;gap:14px;margin:16px 0;max-width:780px}
.hs-n{flex:0 0 34px;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--acc),var(--acc2));color:#fff;font-weight:800;display:inline-flex;align-items:center;justify-content:center;font-size:15px}
.pn{display:inline-block;margin-top:20px;font-weight:700;color:var(--acc)}
.gf-toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,14px);background:#132639;color:#fff;font-size:14px;font-weight:600;padding:10px 18px;border-radius:999px;opacity:0;pointer-events:none;transition:opacity .18s,transform .18s;z-index:60}
.gf-toast.show{opacity:1;transform:translate(-50%,0)}
.site{margin-top:44px;border-top:1px solid var(--line);background:rgba(15,29,46,.5)}
.site .footer-in{max-width:1100px;margin:0 auto;padding:26px 20px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;font-size:13.5px}
.site h4{margin:0 0 8px;font-size:12.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--mut)}
.site a{display:block;padding:3px 0}
.site a:hover{color:var(--acc)}
.footer-note{max-width:1100px;margin:0 auto;padding:0 20px 22px;font-size:12.5px;color:var(--mut)}
@media(max-width:640px){.hero{gap:14px;margin-bottom:2px;padding:2px 0}.hero img{flex-basis:100%}.trustrow{margin-top:8px}.um-lab{min-width:100%}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.ig{margin:26px 0;background:#0F1D2E;border:1px solid #33415E;border-radius:16px;padding:14px;max-width:100%}.ig{overflow-x:auto}.ig img{min-width:560px}.ig img{width:100%;height:auto;display:block}.ig figcaption{text-align:center;font-size:13px;color:#93A0BC;margin-top:8px}