/* Open edition: scoped to the catalog, first-use guide and source page. */
.open-v5-branch{--paper:#FCFBFD;--ink:#17131C;--purple:#6B238E;--serif:"Songti SC","Noto Serif CJK SC","STSong",serif;--sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--paper);color:var(--ink);font-family:var(--sans)}
.open-v5-branch .ov5-header{border-bottom:1px solid var(--line);background:var(--paper)}
.open-v5-branch .ov5-header-inner{min-height:96px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.open-v5-branch .ov5-header .xlg-brand img{width:40px;height:40px}
.open-v5-branch .ov5-header .xlg-brand strong{font-size:15px;letter-spacing:.01em}
.open-v5-branch .ov5-header .xlg-brand small{font-size:12px;letter-spacing:.09em;margin-top:3px}
.open-v5-branch .ov5-header-nav{margin:0;display:flex;align-items:center;gap:28px;font-size:12px}
.open-v5-branch .ov5-header-nav a{text-decoration:none}
.open-v5-branch .ov5-header-nav .ov5-home-return{padding:8px 0}
.open-v5-branch .ov5-header-nav .ov5-home-return:hover{color:var(--purple)}
.open-v5-branch .ov5-header-nav .ov5-nav-next{background:var(--ink);color:var(--paper);border-radius:4px;padding:9px 16px;display:flex;align-items:center;gap:18px}
.open-v5-branch .site-header{min-height:96px}
.open-v5-apps .page-width,.open-v5-apps .site-header{width:min(1200px,calc(100% - 64px))}
.open-v5-branch .header-start{border-radius:4px}
.open-v5-branch .ov5-hero{display:grid;grid-template-columns:minmax(0,1fr) 236px;gap:72px;align-items:center;max-width:none;padding-top:64px;padding-bottom:56px}
.open-v5-branch .ov5-hero h1{font-family:var(--serif);font-size:clamp(58px,6.1vw,80px);font-weight:500;letter-spacing:-.04em;line-height:1.15;margin:25px 0 25px;color:var(--ink)}
.open-v5-branch .ov5-hero h1 em{font-style:normal;color:var(--ink)}
.open-v5-branch .ov5-overline{font-size:12px;font-weight:600;letter-spacing:.15em;color:var(--purple)}
.open-v5-branch .ov5-overline span{display:inline;margin-left:22px;color:#716B77;font-weight:400;letter-spacing:.045em}
.open-v5-branch .ov5-hero .lead,.open-v5-branch .ov5-hero .hero-description{font-size:16px;line-height:1.9;color:#665E6D;max-width:620px}
.open-v5-branch .ov5-actions{display:flex;align-items:center;flex-wrap:wrap;gap:22px;margin-top:27px}
.open-v5-branch .ov5-button{display:inline-flex;align-items:center;justify-content:space-between;gap:30px;min-height:51px;padding:13px 22px;background:var(--ink);color:var(--paper);border:1px solid var(--ink);border-radius:4px;font-size:14px;font-weight:500;text-decoration:none;transition:background 160ms,color 160ms}
.open-v5-branch .ov5-button:hover{background:var(--purple);border-color:var(--purple)}
.open-v5-branch .ov5-text-link{font-size:13px;display:inline-flex;align-items:center;gap:14px;min-height:44px;color:var(--ink);text-decoration:none}
.open-v5-branch .ov5-text-link:hover{color:var(--purple)}
.open-v5-branch .ov5-side-note{padding-top:10px}
.open-v5-branch .ov5-side-note img{width:170px;height:auto;margin:0 0 28px -8px;transform:rotate(-7deg)}
.open-v5-branch .ov5-side-note p{font-size:13px;line-height:1.9;color:#716B77}
.open-v5-branch .ov5-side-note p strong{font-weight:500;color:var(--ink)}
.open-v5-branch .ov5-side-note a{display:inline-flex;align-items:center;gap:12px;font-size:12px;line-height:1.8;color:var(--purple);border-bottom:1px solid #CFC5D6;padding:8px 0 4px;margin-top:7px;text-decoration:none}
.open-v5-branch .ov5-compatibility{font-size:12px;color:#716B77;margin-top:16px;letter-spacing:.02em}
.open-v5-branch .ov5-route{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--ink);border-bottom:1px solid var(--line);margin-bottom:36px}
.open-v5-branch .ov5-route a{display:flex;gap:24px;align-items:center;padding:19px 20px 19px 0;font-size:14px;color:var(--ink);text-decoration:none}
.open-v5-branch .ov5-route a>span:first-child{font-size:12px;color:var(--purple);font-variant-numeric:tabular-nums}
.open-v5-branch .ov5-route a>span:last-child{margin-left:auto;color:#83788B}
.open-v5-branch .ov5-route a+a{border-left:1px solid var(--line);padding-left:26px}
.open-v5-branch .ov5-route a:hover{color:var(--purple)}
.open-v5-branch .ov5-license{border-left:1px solid #D4CCD9;padding-left:30px;margin-top:32px}
.open-v5-branch .ov5-license-label{font-size:12px;letter-spacing:.13em;color:var(--purple)}
.open-v5-branch .ov5-license>strong{display:block;font-family:var(--serif);font-size:88px;font-weight:400;line-height:1.12;letter-spacing:-.09em;margin:6px 0 13px;color:var(--ink)}
.open-v5-branch .ov5-license p{font-size:12px;line-height:1.85;color:#716B77}
.open-v5-branch .ov5-license a{display:inline-flex;align-items:center;gap:10px;margin-top:14px;padding-bottom:4px;border-bottom:1px solid #CFC5D6;font-size:12px;color:var(--purple);text-decoration:none}
.open-v5-branch .ov5-open-line{border-top:1px solid var(--ink);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:23px;margin-bottom:36px;font-size:14px}
.open-v5-branch .ov5-open-line strong{font-weight:500;letter-spacing:.015em}
.open-v5-branch .ov5-open-line>span{font-size:12px;color:#716B77}
.open-v5-branch .free-line{border-top-color:var(--ink);padding-block:19px}
.open-v5-branch .free-line strong{font-weight:550}
.open-v5-branch .free-line p>span:last-child{font-size:12px}
.open-v5-branch .catalog-shell{padding-top:52px}
.open-v5-branch .directory-heading h2{font-size:32px}
.open-v5-branch .filter.active{background:var(--ink);border-color:var(--ink)}
.open-v5-branch .group-heading{background:transparent;border-top-color:var(--ink);padding-top:18px;padding-bottom:18px}
.open-v5-branch .group-heading h2{font-size:16px}
.open-v5-branch .app-symbol{background:#F2EFF5}
.open-v5-branch .app-symbol:has(img){background:transparent}
.open-v5-branch .policy-row{grid-template-columns:80px 1fr 1.05fr;gap:38px;padding-block:50px}
.open-v5-branch .policy-row h2{font-size:42px;line-height:1.4}
.open-v5-branch .policy-row p{font-size:15px;line-height:1.9}
.open-v5-branch .policy-row .policy-index{font-size:12px;color:var(--purple)}
.open-v5-branch #source-status{margin-top:17px;font-size:13px;color:#716B77}
.open-v5-branch .old-friends{border:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);border-radius:0;padding:36px 0;margin:24px 0 60px;gap:70px;background:transparent}
.open-v5-branch .old-friends h2{font-size:31px;margin-top:15px}
.open-v5-branch .old-friends p{font-size:13px;line-height:1.85}
.open-v5-branch .step-row{grid-template-columns:80px 1.12fr 1fr;gap:38px;padding-block:54px}
.open-v5-branch .step-count{font-family:var(--serif);font-size:66px;line-height:1;font-weight:400;color:var(--ink)}
.open-v5-branch .step-row h2{font-size:38px;line-height:1.45;letter-spacing:-.035em}
.open-v5-branch .step-row p{font-size:15px;line-height:1.9}
.open-v5-branch .step-aside{font-size:13px}
.open-v5-branch .step-aside p{font-size:13px}
.open-v5-branch .step-row .xlg-btn{font-size:13px;min-height:46px;border-radius:4px}
.open-v5-branch .closing-panel{padding-block:64px}
.open-v5-branch .closing-panel h2{font-size:48px}
.open-v5-branch .xlg-btn{border-radius:4px}
.open-v5-branch .site-footer>p{font-size:12px}
.open-v5-branch a:focus-visible,.open-v5-branch button:focus-visible,.open-v5-branch summary:focus-visible{outline:3px solid #7A3FA0;outline-offset:5px}
@media(max-width:1100px){
  .open-v5-branch .ov5-hero{grid-template-columns:minmax(0,1fr) 205px;gap:36px;padding-top:54px;padding-bottom:48px}
  .open-v5-branch .ov5-hero h1{font-size:clamp(56px,6.9vw,72px)}
  .open-v5-branch .ov5-side-note img{width:145px}
  .open-v5-branch .ov5-license{padding-left:25px}.open-v5-branch .ov5-license>strong{font-size:80px}
  .open-v5-branch .policy-row,.open-v5-branch .step-row{grid-template-columns:60px 1fr 1fr;gap:28px}
  .open-v5-branch .policy-row h2{font-size:36px}.open-v5-branch .step-row h2{font-size:32px}
}
@media(max-width:800px){
  .open-v5-branch .ov5-header-inner{min-height:85px}.open-v5-branch .ov5-header-nav{gap:20px}
  .open-v5-branch .ov5-hero{grid-template-columns:minmax(0,1fr) 175px;gap:26px;padding-top:46px;padding-bottom:42px}
  .open-v5-branch .ov5-hero h1{font-size:64px}
  .open-v5-branch .ov5-hero .lead,.open-v5-branch .ov5-hero .hero-description{font-size:14px}
  .open-v5-branch .ov5-hero .lead br,.open-v5-branch .ov5-hero .hero-description br{display:none}
  .open-v5-branch .ov5-overline span{margin-left:14px;font-size:12px}
  .open-v5-branch .ov5-side-note img{width:124px;margin-bottom:20px}.open-v5-branch .ov5-side-note p{font-size:12px}
  .open-v5-branch .ov5-license{padding-left:20px}.open-v5-branch .ov5-license>strong{font-size:72px}.open-v5-branch .ov5-license p{font-size:12px}
  .open-v5-branch .ov5-actions{gap:14px}.open-v5-branch .ov5-button{font-size:12px;padding:12px 16px;gap:22px;min-height:46px}.open-v5-branch .ov5-text-link{font-size:12px;gap:10px}
  .open-v5-branch .ov5-route a{gap:14px;font-size:12px}.open-v5-branch .ov5-route a+a{padding-left:18px}
  .open-v5-branch .ov5-open-line{font-size:12px}.open-v5-branch .ov5-open-line>span{font-size:12px}
  .open-v5-branch .policy-row{grid-template-columns:48px 1fr 1.1fr;gap:20px}.open-v5-branch .policy-row h2{font-size:28px}.open-v5-branch .policy-row p{font-size:13px}
  .open-v5-branch .step-row{grid-template-columns:48px 1fr;gap:25px}.open-v5-branch .step-count{font-size:52px}.open-v5-branch .step-row h2{font-size:33px}.open-v5-branch .step-aside{grid-column:2;padding:20px 0 0;border-left:0;border-top:1px solid var(--line)}
}
@media(max-width:767px){.open-v5-apps .page-width,.open-v5-apps .site-header{width:calc(100% - 48px)}}
@media(max-width:600px){
  .open-v5-branch .ov5-header-inner{min-height:0;flex-wrap:wrap;gap:14px;padding-block:17px 14px}
  .open-v5-branch .ov5-header .xlg-brand{gap:11px}.open-v5-branch .ov5-header .xlg-brand img{width:33px;height:33px}
  .open-v5-branch .ov5-header .xlg-brand strong{font-size:13px}.open-v5-branch .ov5-header .xlg-brand small{font-size:12px}
  .open-v5-branch .ov5-header-nav{width:100%;justify-content:space-between;font-size:12px;gap:16px}
  .open-v5-branch .ov5-header-nav .ov5-nav-next{font-size:12px;padding:7px 12px;gap:11px}
  .open-v5-branch .site-header{min-height:0}
  .open-v5-branch .ov5-hero{display:grid;grid-template-columns:1fr;gap:30px;padding-top:40px;padding-bottom:36px}
  .open-v5-branch .ov5-hero h1{font-size:clamp(44px,11.8vw,60px);line-height:1.17;letter-spacing:-.04em;margin:22px 0 20px}
  .open-v5-branch .ov5-overline{font-size:12px;letter-spacing:.1em}.open-v5-branch .ov5-overline span{font-size:12px;margin-left:14px}
  .open-v5-branch .ov5-hero .lead,.open-v5-branch .ov5-hero .hero-description{font-size:13px;line-height:1.85;max-width:400px}
  .open-v5-branch .ov5-actions{gap:16px;margin-top:22px}.open-v5-branch .ov5-button{font-size:12px;min-height:46px;padding:12px 17px;gap:24px}.open-v5-branch .ov5-text-link{font-size:12px;gap:8px}
  .open-v5-branch .ov5-side-note{display:grid;grid-template-columns:61px 1fr;column-gap:18px;row-gap:2px;align-items:center;padding-top:0}
  .open-v5-branch .ov5-side-note img{width:61px;grid-row:1/3;transform:rotate(-7deg);margin:0}
  .open-v5-branch .ov5-side-note p{font-size:12px;line-height:1.8}.open-v5-branch .ov5-side-note p br{display:none}.open-v5-branch .ov5-side-note p strong{display:block}
  .open-v5-branch .ov5-side-note a{font-size:12px;justify-self:start;margin:0;padding:3px 0 2px;gap:8px}
  .open-v5-branch .ov5-compatibility{font-size:12px;line-height:1.8;margin-top:14px}
  .open-v5-branch .ov5-route{margin-bottom:22px}.open-v5-branch .ov5-route a{display:block;padding:14px 10px 14px 0;font-size:12px;line-height:1.8}.open-v5-branch .ov5-route a+a{padding-left:14px}.open-v5-branch .ov5-route a>span:first-child{display:block;font-size:12px;margin-bottom:5px}.open-v5-branch .ov5-route a>span:last-child{display:none}
  .open-v5-branch .ov5-license{border-left:0;border-top:1px solid var(--line);padding:15px 0 0;margin:0;display:grid;grid-template-columns:112px 1fr;column-gap:18px;align-items:start}
  .open-v5-branch .ov5-license-label{font-size:12px;grid-column:1;grid-row:1}
  .open-v5-branch .ov5-license>strong{font-size:67px;grid-column:1;grid-row:2/4;margin:0;line-height:1;letter-spacing:-.075em}
  .open-v5-branch .ov5-license p{grid-column:2;grid-row:1/3;font-size:12px;padding-top:0;line-height:1.8}.open-v5-branch .ov5-license a{grid-column:2;grid-row:3;font-size:12px;margin-top:8px;justify-self:start;gap:8px}
  .open-v5-branch .ov5-open-line{align-items:start;flex-direction:column;gap:8px;font-size:12px;padding-block:18px;margin-bottom:18px;line-height:1.8}.open-v5-branch .ov5-open-line>span{font-size:12px}
  .open-v5-branch .free-line{padding-block:17px;gap:11px}.open-v5-branch .free-line p{font-size:12px;gap:7px 9px}.open-v5-branch .free-line p>span:last-child{font-size:12px}.open-v5-branch .free-line a{font-size:12px}
  .open-v5-branch .catalog-shell{padding-top:34px}.open-v5-branch .directory-heading h2{font-size:25px}.open-v5-branch .group-heading{padding-block:14px}.open-v5-branch .group-heading h2{font-size:13px}
  .open-v5-branch .policy-row{grid-template-columns:35px minmax(0,1fr);gap:18px;padding-block:34px}.open-v5-branch .policy-row .policy-index{font-size:12px;line-height:1.7;padding-top:6px}.open-v5-branch .policy-row h2{font-size:32px;line-height:1.4}.open-v5-branch .policy-row>div:last-child{grid-column:2}.open-v5-branch .policy-row p{font-size:13px}.open-v5-branch .policy-row ul{font-size:12px;padding-left:18px}
  .open-v5-branch .old-friends{grid-template-columns:1fr;gap:22px;padding-block:30px;margin-block:10px 30px}.open-v5-branch .old-friends h2{font-size:27px;margin-top:12px}.open-v5-branch .old-friends p{font-size:12px}
  .open-v5-branch .step-row{grid-template-columns:36px minmax(0,1fr);gap:20px;padding-block:36px}.open-v5-branch .step-count{font-size:42px;padding-top:4px}.open-v5-branch .step-row h2{font-size:29px;line-height:1.5;margin-bottom:15px}.open-v5-branch .step-row p{font-size:13px}.open-v5-branch .step-aside p{font-size:12px}.open-v5-branch .step-aside{font-size:12px}
  .open-v5-branch .closing-panel{padding-block:43px}.open-v5-branch .closing-panel h2{font-size:36px}.open-v5-branch .site-footer>p{font-size:12px}
}
@media(max-width:350px){
  .open-v5-apps .page-width,.open-v5-apps .site-header{width:calc(100% - 40px)}
  .open-v5-branch .ov5-hero h1{font-size:40px}.open-v5-branch .ov5-overline span{font-size:12px;margin-left:11px}.open-v5-branch .ov5-actions{gap:9px 13px}.open-v5-branch .ov5-button{padding-inline:14px;gap:18px;font-size:12px}.open-v5-branch .ov5-text-link{font-size:12px}
  .open-v5-branch .ov5-hero .lead,.open-v5-branch .ov5-hero .hero-description{font-size:12px}.open-v5-branch .ov5-hero{gap:27px}.open-v5-branch .ov5-license{grid-template-columns:100px 1fr;gap:0 15px}.open-v5-branch .ov5-license>strong{font-size:60px}.open-v5-branch .ov5-license p{font-size:12px}.open-v5-branch .ov5-license a{font-size:12px}
  .open-v5-branch .directory-heading h2{font-size:23px}.open-v5-branch .step-row{grid-template-columns:29px minmax(0,1fr);gap:16px}.open-v5-branch .step-count{font-size:36px}.open-v5-branch .step-row h2{font-size:26px}.open-v5-branch .policy-row{grid-template-columns:27px minmax(0,1fr);gap:16px}.open-v5-branch .policy-row h2{font-size:29px}
}
@media(prefers-reduced-motion:reduce){.open-v5-branch *{animation:none!important;transition:none!important}.open-v5-branch .ov5-side-note img{transform:none}}

/* Refined branch scale and action rhythm. */
.open-v5-branch{--muted:#625C68;--line:#E4E0E8}
.open-v5-branch .ov5-header,.open-v5-branch .site-header{background:#FCFBFD}
.open-v5-branch .ov5-hero{padding-block:48px;gap:64px}
.open-v5-branch .ov5-hero h1{font-weight:500;line-height:1.16}
.open-v5-branch :is(.ov5-button,.ov5-nav-next,.header-start){border-radius:10px;min-height:48px}
.open-v5-branch :is(.ov5-text-link,.ov5-home-return,.branch-return,.ov5-side-note a,.ov5-license a){min-height:44px;align-items:center}
.open-v5-branch .ov5-side-note p{font-size:14px;line-height:1.85}
.open-v5-branch .ov5-compatibility{font-size:12px}
.open-v5-branch .ov5-open-line{border-top:1px solid var(--line);border-bottom:0;margin-bottom:0;padding-block:24px}
.open-v5-branch .ov5-open-line+.policy-row{border-top:0;padding-top:40px}
.open-v5-branch .ov5-route{border-color:var(--line);border-bottom:0;margin-bottom:0}
.open-v5-branch .ov5-route+.step-row{border-top:0}
.open-v5-branch .ov5-license{padding-left:28px}
.open-v5-branch .policy-index{white-space:nowrap}
.open-v5-apps .ov5-hero{display:block;padding-block:40px 32px}
.open-v5-apps .ov5-hero h1{font-size:clamp(44px,5.4vw,70px);margin-block:18px}
.open-v5-apps .ov5-hero h1 br{display:none}
.open-v5-apps .ov5-hero h1 em{margin-left:.12em}
.open-v5-apps .ov5-hero .hero-description{max-width:760px}
.open-v5-apps .catalog-shell{padding-top:24px}
.open-v5-apps .directory-heading{margin-bottom:20px}
.open-v5-apps .free-line{margin-top:16px;margin-bottom:56px}
@media(max-width:767px){
 .open-v5-branch .ov5-hero{padding-block:32px;gap:24px}
 .open-v5-branch .ov5-hero :is(.lead,.hero-description){font-size:15px;line-height:1.8}
 .open-v5-branch .ov5-side-note p{font-size:13px}
 .open-v5-branch :is(.ov5-button,.ov5-text-link){font-size:14px;min-height:48px}
 .open-v5-branch .ov5-header-nav .ov5-nav-next{font-size:13px;min-height:44px}
 .open-v5-branch .ov5-home-return{font-size:13px}
 .open-v5-branch .ov5-license{padding:20px 0 0;grid-template-columns:96px 1fr}
 .open-v5-branch .ov5-license p{font-size:13px;line-height:1.8}
 .open-v5-branch .ov5-open-line{padding-block:20px}
 .open-v5-source .policy-row{grid-template-columns:1fr;gap:16px;padding-block:32px}
 .open-v5-source .policy-row>div:last-child{grid-column:auto}
 .open-v5-source .policy-index{font-size:12px}
 .open-v5-source .policy-row h2{font-size:30px}
 .open-v5-branch .step-row p,.open-v5-branch .step-aside{font-size:14px;line-height:1.85}
 .open-v5-branch .ov5-route a{font-size:13px;min-height:76px;padding-block:16px}
 .open-v5-branch .ov5-route a>span:first-child{font-size:12px}
 .open-v5-apps .ov5-hero{padding-block:28px 20px}
 .open-v5-apps .ov5-hero h1{font-size:44px;line-height:1.16}
 .open-v5-apps .ov5-hero h1 br{display:block}
 .open-v5-apps .ov5-hero h1 em{margin-left:0}
 .open-v5-apps .catalog-shell{padding-top:20px}
 .open-v5-apps .directory-heading{margin-bottom:16px}
 .open-v5-apps .directory-heading .eyebrow{display:none}
 .open-v5-apps .directory-heading h2{margin-top:0;font-size:25px;line-height:1.4}
 .open-v5-apps .directory-help{font-size:12px}
 .open-v5-branch .free-line :is(p,p>span:last-child,a){font-size:12px}
}
@media(max-width:359px){.open-v5-apps .ov5-hero h1{font-size:40px}.open-v5-branch .ov5-hero :is(.lead,.hero-description){font-size:14px}}