/* Shared editorial layout for every local preview page. Business-state display
   rules below intentionally defer to the original scripts' inline styles. */
.page-banner{background:var(--deep);padding:28px 0 0}
.banner-frame{position:relative;min-height:278px;isolation:isolate;overflow:hidden;background:#09080d}
.banner-art{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:-2}
.banner-frame:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,0,0,.16),transparent 70%);z-index:-1}
.banner-copy{padding:48px 46px;max-width:660px}
.banner-copy .eyebrow{font-size:12px;color:#c4b8d1;margin-bottom:14px;letter-spacing:.08em}
.banner-copy h1{font-size:48px;font-weight:550;letter-spacing:-1.5px;line-height:1.2;margin:0 0 20px;color:#fff}
.banner-sub{font-size:15px;color:#d2cbd8;margin:0;max-width:400px;line-height:1.9}
.content-area{padding-top:50px;padding-bottom:80px;min-height:35vh}
.content-area>*{min-width:0}
.content-area h2{font-size:27px;font-weight:550;letter-spacing:-.6px;line-height:1.4;margin:0 0 18px}
.content-area h3{font-size:19px;font-weight:550;margin:0 0 12px}
.content-area p{color:var(--muted)}
.content-area .section-sub,.content-area .sub{font-size:14px;line-height:1.9;margin:0 0 28px;max-width:760px;color:var(--muted)}
.content-area .card,.content-area .panel{background:none;border:0;box-shadow:none;border-radius:0;padding:0}
.content-area a:not(.entry-card):not(.btn):not(.hub-card):hover{color:var(--accent)}
.content-area .actions{margin-top:24px;gap:16px 24px}
.content-area .btn{display:inline-flex;align-items:center;justify-content:center;min-height:45px;padding:10px 21px;border:1px solid var(--line);border-radius:3px;background:transparent;color:var(--text);font-size:14px;line-height:1.5;font-weight:550;cursor:pointer}
.content-area .btn.primary{background:var(--accent);border-color:var(--accent);color:#151515}
.content-area .btn.primary:hover{background:var(--accent-hover)}
.content-area .btn.ghost:hover{border-color:var(--quiet);background:var(--panel-hover)}
.content-area button:disabled{opacity:.45;cursor:not-allowed}
.content-area .badge{display:block;font-size:12px;color:var(--accent);margin-bottom:14px}
.content-area .field{display:flex;flex-direction:column;min-width:0;gap:8px}
.content-area label{font-size:14px;color:var(--text)}
.content-area input,.content-area textarea{font:inherit;font-size:15px;line-height:1.5;background:var(--field);border:1px solid var(--line-field);border-radius:3px;padding:12px 14px;color:var(--text);width:100%;min-width:0;outline:none}
.content-area input::placeholder,.content-area textarea::placeholder{color:var(--placeholder);font-size:13px}
.content-area input:focus,.content-area textarea:focus{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.content-area textarea{resize:vertical;min-height:220px}
.content-area .form{display:grid;gap:22px}
.content-area .msg{margin-top:22px;color:var(--accent);font-size:14px;overflow-wrap:anywhere;white-space:pre-wrap}
.content-area .msg:empty{margin-top:0}
.content-area .tips{font-size:13px;color:var(--quiet);margin-top:25px}
.content-area .qr-card{border-left:1px solid var(--line);padding-left:36px;align-self:start;background:none;text-align:left;border-radius:0;box-shadow:none}
.content-area .qr-card img{width:170px;background:#fff;margin:18px 0}
.content-area .qr-title,.content-area .qr-eyebrow{font-size:15px;color:var(--text);font-weight:550}
.content-area .qr-desc,.content-area .qr-note{font-size:13px;line-height:1.9;color:var(--muted);max-width:240px}
.content-area .qr-note{color:var(--quiet);margin-top:16px}

/* Help: native, keyboard-accessible disclosure rows rather than nested cards. */
.topic-nav{display:flex;gap:28px;align-items:center;font-size:14px;border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:35px;flex-wrap:wrap}
.topic-nav a:last-child{margin-left:auto;color:var(--accent)}
.video-card{margin-bottom:55px}
.video-card-head{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-bottom:22px}
.video-card-head h2{margin-bottom:8px}
.video-card-head p{margin:0;font-size:14px}
.video-card-actions{display:flex;gap:20px;align-items:center;font-size:13px;flex-shrink:0}
.video-chip{color:var(--quiet)}
.video-open{color:var(--accent)}
.bili-video{aspect-ratio:16/9;background:#0b0d10;border:1px solid var(--line);width:100%}
.bili-video iframe{border:0;width:100%;height:100%;display:block}
.video-poster{display:block;position:relative;width:100%;height:100%;padding:0;border:0;background:var(--media-bg);color:#fff;cursor:pointer;overflow:hidden}
.video-poster img{width:100%;height:100%;object-fit:cover;object-position:top;opacity:.55;transition:opacity .2s}
.video-poster:hover img{opacity:.75}
.video-poster>span{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:16px;font-size:19px;background:rgba(0,0,0,.12);text-shadow:0 1px 10px #000}
.video-poster b{display:grid;place-items:center;width:58px;height:58px;background:var(--accent);color:#16191d;border-radius:50%;text-shadow:none;font-size:21px;padding-left:4px}
.video-poster small{position:absolute;bottom:20px;right:24px;font-size:12px;letter-spacing:.08em}
.content-area .help-block-title{margin:55px 0 24px}
.usage-list,.faq-list{border-top:1px solid var(--line)}
.usage-item,.faq-item{border-bottom:1px solid var(--line)}
.content-area summary{cursor:pointer;list-style:none}
.content-area summary::-webkit-details-marker{display:none}
.usage-item>summary,.faq-item>summary{display:flex;align-items:center;gap:20px;padding:23px 0;font-size:16px;font-weight:500}
.usage-item>summary:after,.faq-item>summary:after{content:"+";margin-left:auto;font-size:24px;color:var(--quiet);line-height:1}
.usage-item[open]>summary:after,.faq-item[open]>summary:after{content:"−";color:var(--accent)}
.usage-answer,.faq-answer{padding:2px 0 28px;max-width:980px;font-size:14px;line-height:1.95;color:var(--muted);overflow-wrap:anywhere}
.usage-answer ol,.usage-answer ul{padding-left:23px}
.usage-answer li{padding-left:4px;margin-block:9px}
.usage-answer b,.faq-answer b{color:var(--text);font-weight:550}
.key-tip{padding:16px 20px;border-left:2px solid var(--line-strong);background:var(--notice-bg);margin:10px 0 24px}
.key-tip.warn{border-left-color:var(--accent);background:var(--warn-bg)}
.key-tip.ok{border-left-color:#6da185}
.inline-mark{color:var(--text);font-family:Consolas,monospace}
.step-highlight{margin:15px 0;display:grid;gap:10px}
.step-chip{padding:14px 18px;border:1px solid var(--line);display:flex;gap:8px 12px;align-items:center;flex-wrap:wrap}
.step-chip b{margin-right:8px;font-size:13px}
.step-arrow{color:var(--quiet)}
.small-note{font-size:12px;color:var(--quiet)}
.help-img-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:24px}
.help-img-grid.single{grid-template-columns:minmax(0,1fr);max-width:820px}
.help-img-card img{border:1px solid var(--line);width:100%;height:auto}
.help-img-card span{font-size:12px;display:block;margin-top:10px;color:var(--quiet)}
.network-flow{padding:24px 0;margin-top:25px;border-top:1px solid var(--line)}
.network-flow-title{font-weight:550;color:var(--text);margin-bottom:20px}
.network-flow-inner{display:grid;grid-template-columns:minmax(0,1fr) 120px minmax(0,1fr);gap:20px;align-items:center}
.flow-device img{max-height:210px;width:auto;margin:auto;object-fit:contain}
.flow-device{text-align:center;font-size:13px}
.flow-cable{text-align:center;font-size:12px}
.flow-cable-line{height:2px;background:var(--accent);margin-bottom:8px}

/* User services. */
.services-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}
.services-heading h2{margin:0;font-size:28px}
.services-heading>p{font-size:13px;margin:0 0 4px}
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.entry-card{display:block;border:1px solid var(--line-panel);border-radius:4px;padding:28px 30px 30px;background:var(--panel);transition:background .18s,border-color .18s;min-width:0}
.entry-card:hover{background:var(--panel-hover);border-color:var(--hover-border);color:var(--text)}
.service-card-top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:23px}
.entry-icon{display:block;width:30px;height:30px;flex-shrink:0;color:var(--accent)}
.entry-card h2{font-size:22px;margin:0 0 10px;letter-spacing:-.3px}
.entry-card p{font-size:14px;margin:0;line-height:1.9;max-width:450px}
.entry-more{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--muted);white-space:nowrap}
.entry-more svg{width:19px;height:19px;color:var(--accent);transition:transform .18s}
.entry-card:hover .entry-more{color:var(--accent)}
.entry-card:hover .entry-more svg{transform:translateX(3px)}
.service-note{display:flex;gap:22px;align-items:baseline;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:36px;padding-top:24px;font-size:13px}
.service-note>span{color:var(--text)}
.service-note p{margin:0}
.service-note a{margin-left:auto;color:var(--accent)}
.register-layout{display:grid;grid-template-columns:minmax(0,650px) minmax(0,1fr);gap:90px;align-items:start}
.register-main .form{max-width:600px}
.code-field{display:flex;gap:12px;align-items:stretch}
.code-field .btn{flex-shrink:0}
.registration-notice{margin-top:52px;border-top:1px solid var(--line);padding-top:32px;display:grid;grid-template-columns:minmax(0,1fr) 210px;gap:50px;align-items:start}
.registration-notice h2{font-size:21px}
.registration-notice p{font-size:14px;line-height:1.9;margin:10px 0}
.registration-notice strong{font-weight:550;color:var(--text)}
.registration-contact img{width:128px;background:#fff}
.registration-contact span{display:block;font-size:12px;margin-top:12px;color:var(--muted)}
.unbind-intro{display:grid;grid-template-columns:minmax(0,1fr) 210px;gap:60px;align-items:start;margin-bottom:30px}
.unbind-intro .section-sub{margin-bottom:10px}
.content-area .account-help{font-size:13px;color:var(--accent)}
.unbind-contact img{width:140px;background:#fff}
.unbind-contact span{font-size:12px;display:block;margin-top:12px;color:var(--muted)}
.page-user-unbind .form{grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;align-items:end;max-width:920px}
.device-list{margin-top:30px}
.device{display:flex;justify-content:space-between;align-items:center;gap:25px;border-top:1px solid var(--line);padding:25px 0}
.machine{font-size:16px;font-family:Consolas,monospace;overflow-wrap:anywhere}
.meta{font-size:13px;color:var(--muted);margin-top:10px}
.device>div{min-width:0}
.device .btn{flex-shrink:0}
.page-feedback .content-area>.card{max-width:900px}
.page-feedback .form{grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;align-items:end}
.page-feedback .form>.field{margin-bottom:0}
.page-feedback .form input,.page-feedback .form>.btn{height:48px;min-height:48px}
.feedback-layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:56px;align-items:start}
.feedback-main{min-width:0}
.feedback-contact{border-left:1px solid var(--line);padding-left:28px;margin-top:5px}
.content-area .feedback-contact h2{font-size:20px;margin:0 0 14px;letter-spacing:0}
.feedback-contact>p:not(.kicker){font-size:13px;line-height:1.9;margin:0 0 20px}
.feedback-contact img{width:175px;height:auto;padding:8px;background:#fff;margin-top:24px}
.feedback-qr-caption{display:block;font-size:12px;color:var(--muted);margin:12px 0 22px}
.feedback-contact .feedback-contact-note{color:var(--quiet)}
.workflow .workflow-topic{font-size:13px;color:var(--muted);margin:22px 0 0;cursor:default}

/* Audio converter: preserve display states driven by the existing code. */
.content-area .page{display:none}
.content-area .page.active{display:block}
.tool-hub{margin:30px 0;border-top:1px solid var(--line)}
.hub-card{position:relative;border-bottom:1px solid var(--line);padding:28px 0 28px 64px;text-align:left;cursor:pointer}
.hub-card[role=button]:hover{background:var(--panel)}
.hub-card h2{font-size:21px;margin:0 0 10px}
.hub-card p{font-size:14px;margin:0}
.hub-icon{position:absolute;left:0;top:25px;font-size:28px;color:var(--accent)}
.hub-more{font-size:12px;color:var(--quiet);margin-top:14px}
.tools-heading{margin-bottom:28px}
.tools-heading h2{font-size:28px;margin-bottom:10px}
.tools-heading>p:last-child{font-size:14px;margin:0}
.ncm-entry{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);border:1px solid var(--line-panel);border-radius:4px;overflow:hidden;background:var(--panel);cursor:pointer;transition:border-color .18s,background .18s}
.ncm-entry:hover{border-color:var(--hover-border);background:var(--panel-hover)}
.ncm-entry-copy{padding:36px 40px}
.tool-category{font-size:12px;letter-spacing:.06em;margin:0 0 16px;color:var(--quiet)}
.ncm-entry h2{font-size:28px;margin:0 0 15px}
.tool-description{font-size:14px;line-height:1.9;margin:0 0 22px}
.tool-meta{display:flex;gap:20px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.tool-meta span{display:flex;align-items:center;gap:8px}
.tool-meta span:before{content:"";width:4px;height:4px;border-radius:50%;background:var(--quiet)}
.tool-start{display:inline-flex;gap:30px;align-items:center;min-height:44px;font-size:14px;font-weight:550;padding:10px 18px;margin-top:28px;background:var(--accent);color:#151515;border-radius:3px}
.tool-start svg{width:20px;height:20px;transition:transform .18s}
.ncm-entry:hover .tool-start{background:var(--accent-hover)}
.ncm-entry:hover .tool-start svg{transform:translateX(3px)}
.tool-visual{display:flex;flex-direction:column;justify-content:center;gap:30px;padding:40px;background:var(--inset);border-left:1px solid var(--line-ui)}
.format-pair{display:flex;align-items:center;gap:24px;justify-content:center;font-family:Consolas,"Microsoft YaHei UI",sans-serif;font-size:22px;letter-spacing:.04em;color:var(--code-text)}
.format-pair svg{width:26px;height:26px;color:var(--quiet)}
.audio-wave{height:90px;display:flex;gap:5px;align-items:center;justify-content:center;position:relative}
.audio-wave:before{content:"";position:absolute;inset:50% 0 auto;border-top:1px solid var(--line-ui)}
.audio-wave i{display:block;height:var(--level);width:5px;max-width:7px;flex:1;background:var(--wave);border-radius:1px;z-index:1}
.visual-caption{text-align:center;font-size:12px;color:var(--quiet);letter-spacing:.08em}
.tools-roadmap{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding:24px 0;font-size:13px}
.tools-roadmap p{margin:0}
.roadmap-dot{width:5px;height:5px;background:var(--quiet);border-radius:50%;flex-shrink:0}
.tools-roadmap a{margin-left:auto;color:var(--muted)}
.top-actions{display:flex;align-items:start;justify-content:space-between;gap:30px;margin-bottom:30px}
.top-actions .btn{flex-shrink:0}
.tool-shell{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:60px}
.drop{display:flex;min-height:235px;flex-direction:column;gap:12px;align-items:center;justify-content:center;border:1px dashed var(--line-strong);background:var(--panel);text-align:center;padding:25px;cursor:pointer}
.drop:hover,.drop.dragover{border-color:var(--accent);background:var(--panel-hover)}
.drop-icon{font-size:35px;color:var(--accent)}
.drop b{font-size:19px;font-weight:500}
.drop span{font-size:13px;color:var(--muted)}
#fileInput{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden;clip-path:inset(50%)}
.converter:focus-within .drop{border-color:var(--accent)}
.file-info{display:none;border-bottom:1px solid var(--line);padding:18px 0;overflow-wrap:anywhere}
.file-name{font-size:14px}
.file-meta{font-size:12px;color:var(--muted);margin-top:6px}
.status{font-size:13px;color:var(--muted);margin-top:22px;overflow-wrap:anywhere}
.bar{display:none;height:4px;background:var(--line);margin-top:18px}
.bar i{display:block;width:0;height:100%;background:var(--accent)}
.mini{border-top:1px solid var(--line);padding:20px 0}
.mini h3{font-size:16px}
.mini p{font-size:13px;line-height:1.9;margin:0}

/* Announcements: flat editorial rows, complete historical releases. */
.content-area .release+.release{margin-top:55px}
.download-title{display:flex;gap:25px;align-items:baseline;justify-content:space-between;margin-bottom:22px}
.download-title h2{margin:0}
.version-note,.history-tip{font-size:13px;color:var(--quiet)}
.announce-list{border-top:1px solid var(--line)}
.announce-row{display:grid;grid-template-columns:115px minmax(0,1fr) 70px 20px;gap:25px;align-items:center;padding:25px 0;border-bottom:1px solid var(--line)}
.announce-row-date{font-size:12px;color:var(--quiet)}
.announce-row-main{min-width:0}
.announce-row-title{display:block;font-size:17px;font-weight:500;overflow-wrap:anywhere}
.announce-row-summary{display:block;font-size:13px;color:var(--muted);margin-top:8px;overflow-wrap:anywhere}
.announce-row-kind{font-size:12px;color:var(--quiet)}
.announce-row-arrow{color:var(--accent)}
.content-area .history-fold>summary{display:flex;gap:25px;align-items:center;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.history-fold-title{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.history-fold-title h2{margin:0}
.chip{font-size:12px;color:var(--quiet)}
.fold-arrow,.history-mini-arrow{margin-left:auto;color:var(--accent)}
.history-tip{padding:20px 0}
.history-item{border-bottom:1px solid var(--line)}
.history-item>summary{display:flex;align-items:center;gap:20px;padding:22px 0}
.history-head{display:flex;gap:35px;align-items:center;flex-wrap:wrap}
.history-head .date{font-size:13px;color:var(--quiet);min-width:95px}
.history-head .title{font-size:17px;color:var(--text)}
.history-content{max-width:900px;padding:5px 0 25px;font-size:14px;line-height:1.95;color:var(--muted);overflow-wrap:anywhere}
.history-content h3{font-size:17px;color:var(--text);margin-top:26px}
.history-content ul,.history-content ol{padding-left:22px}
.history-content li{margin-block:8px}
.back-link{display:inline-block;margin-bottom:30px;font-size:14px;color:var(--accent)}
.detail-head{border-top:1px solid var(--line);padding-top:30px;margin-bottom:28px}
.detail-date{font-size:13px;color:var(--quiet)}
.detail-content{white-space:pre-wrap;overflow-wrap:anywhere;font-size:15px;line-height:2;color:var(--muted);max-width:900px}
.detail-image{margin-top:30px;max-width:900px}
.detail-image img{max-width:100%;border:1px solid var(--line)}

/* Release catalogue: one disclosure per version, no outer nested disclosure. */
.updates-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:60px;align-items:start}
.release-intro{margin-bottom:28px}
.release-intro h2{margin-bottom:10px}
.release-intro>p:last-child{font-size:14px;margin:0}
.page-announcements .history-item{border:1px solid var(--line-panel);border-radius:4px;overflow:hidden;background:var(--panel)}
.page-announcements .history-item>summary{padding:22px 25px;transition:background .15s}
.page-announcements .history-item>summary:hover{background:var(--panel-hover)}
.page-announcements .latest-version{border-top:2px solid var(--accent);background:var(--panel-selected)}
.page-announcements .latest-version>summary{display:block;padding:28px 30px}
.latest-version-meta{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px}
.release-status{color:var(--accent)}
.latest-version-meta time{color:var(--muted)}
.latest-version-title{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:21px}
.content-area .latest-version-title h3{font-size:32px;font-weight:550;letter-spacing:-.7px;margin:0;color:var(--text)}
.version-action{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);white-space:nowrap}
.version-chevron{width:20px;height:20px;flex-shrink:0;color:var(--quiet);transition:transform .15s}
.history-item[open]>summary .version-chevron{transform:rotate(180deg);color:var(--accent)}
.version-brief{font-size:14px;line-height:1.9;margin:12px 0 20px}
.version-tags{display:flex;gap:10px 20px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.version-tags span{border-left:2px solid var(--quiet);padding-left:9px}
.content-area .archive-label{font-size:14px;color:var(--muted);margin:32px 0 17px;font-weight:500}
.history-archive{display:grid;gap:10px}
.page-announcements .archive-version>summary{display:grid;grid-template-columns:95px minmax(0,1fr) auto 20px;align-items:center;gap:20px;padding:21px 25px}
.archive-version time{font-size:12px;color:var(--quiet)}
.release-version{font-size:16px;font-weight:500;color:var(--text)}
.release-kind{font-size:11px;color:var(--quiet)}
.page-announcements .history-content{padding:25px 30px 30px;border-top:1px solid var(--line);max-width:none;font-size:14px}
.page-announcements .history-content>p:first-child{margin-top:0}
.page-announcements .history-content h3{font-size:17px;color:var(--text);margin:25px 0 10px}
.page-announcements .history-content strong{color:var(--strong);font-weight:550}
.announcements-panel{border:1px solid var(--line);padding:25px 23px;border-radius:4px;background:var(--panel-soft)}
.content-area .announcements-panel h2{font-size:23px;margin-bottom:9px}
.announcements-intro{font-size:13px;margin:0 0 22px}
.announcements-panel .announce-list{border-top:0}
.announcements-panel .announce-row{position:relative;display:grid;grid-template-columns:1fr;gap:9px;padding:20px 0;border-bottom:1px solid var(--line)}
.announcements-panel .announce-row:first-child{padding-top:0}
.announcements-panel .announce-row-title{font-size:15px;line-height:1.7;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.announcements-panel .announce-row-summary{font-size:12px;line-height:1.9;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
.announcements-panel .announce-row[hidden],.announcement-more[hidden]{display:none}
.announcement-more{display:block;width:100%;padding:11px 12px;margin-top:18px;border:1px solid var(--line);border-radius:3px;background:transparent;color:var(--muted);font:inherit;font-size:12px;line-height:1.6;cursor:pointer}
.announcement-more:hover{color:var(--accent);border-color:var(--accent)}
.announcements-panel .announce-row-date{font-size:11px}
.announcements-panel .announce-row-kind{display:none}
.announcements-panel .announce-row-arrow{justify-self:end;font-size:17px}
.announce-loading{font-size:12px;color:var(--quiet);margin-bottom:15px}
.announcement-support{display:block;font-size:12px;color:var(--accent);margin-top:22px}

.page-about .grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:45px}
.page-about .feature{border-top:1px solid var(--line);padding-top:24px}
.page-about .feature p{font-size:14px;margin:0}
.qr-wrap{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:45px;border-top:1px solid var(--line);padding-top:35px;margin-top:55px}
.qr-text p{font-size:14px}
.download-hero .download-heading{font-size:40px;font-weight:550;line-height:1.3;margin:0 0 20px;letter-spacing:-1px}
.screenshot img{width:100%;height:auto}

@media(max-width:1050px){
 .updates-layout{grid-template-columns:minmax(0,1fr) 245px;gap:30px}.announcements-panel{padding:23px 20px}
 .register-layout{gap:45px;grid-template-columns:minmax(0,1fr) 240px}.content-area .qr-card{padding-left:25px}
 .tool-shell{gap:35px;grid-template-columns:minmax(0,1fr) 220px}
}
@media(max-width:800px){
 .updates-layout{grid-template-columns:1fr;gap:35px}.announcements-panel{max-width:none}.page-announcements .archive-version>summary{grid-template-columns:95px minmax(0,1fr) auto 20px}
 .banner-frame{min-height:250px}.banner-copy{padding:40px 28px}.banner-copy h1{font-size:40px}.banner-sub{max-width:320px;font-size:14px}
 .banner-art{object-position:65% center}.banner-frame:after{background:linear-gradient(90deg,rgba(0,0,0,.4),transparent)}
 .content-area{padding-top:35px;padding-bottom:55px}.video-card-head{align-items:start;flex-direction:column;gap:12px}
 .register-layout{grid-template-columns:minmax(0,1fr) 195px;gap:28px}.content-area .qr-card{padding-left:23px}.content-area .qr-card img{width:145px}
 .page-user-unbind .form,.page-feedback .form{grid-template-columns:1fr 1fr}.page-user-unbind .form>.btn,.page-feedback .form>.btn{justify-self:start}
 .feedback-layout{grid-template-columns:1fr;gap:35px}.feedback-contact{border-left:0;border-top:1px solid var(--line);padding:26px 0 0;margin:0}.feedback-contact img{width:166px}.feedback-contact>p{max-width:400px}
 .unbind-intro{grid-template-columns:minmax(0,1fr) 145px;gap:30px}.registration-notice{gap:30px;grid-template-columns:minmax(0,1fr) 145px}
 .tool-shell{grid-template-columns:1fr;gap:30px}.side{display:grid;grid-template-columns:1fr 1fr;gap:25px}
 .ncm-entry-copy{padding:28px}.tool-visual{padding:28px;gap:25px}.audio-wave{gap:3px;height:75px}.format-pair{font-size:20px;gap:18px}
 .announce-row{grid-template-columns:95px minmax(0,1fr) 20px;gap:20px}.announce-row-kind{display:none}
 .page-about .grid{gap:25px}.page-about .feature h3{font-size:18px}
 .network-flow-inner{grid-template-columns:minmax(0,1fr) 65px minmax(0,1fr);gap:15px}
}
@media(max-width:600px){
 .page-announcements .latest-version>summary{padding:24px 22px}.content-area .latest-version-title h3{font-size:27px}.latest-version-title{gap:12px;margin-top:20px}.version-action{gap:5px;font-size:11px}.latest-version-meta{font-size:11px}.version-brief{font-size:13px}.version-tags{font-size:11px;gap:10px 14px}
 .page-announcements .archive-version>summary{grid-template-columns:minmax(0,1fr) auto 20px;gap:9px 12px;padding:19px 20px}.archive-version time{grid-column:1;font-size:11px}.release-version{grid-column:1;grid-row:2;font-size:16px}.release-kind{grid-column:2;grid-row:2}.archive-version .version-chevron{grid-column:3;grid-row:2}
 .page-announcements .history-content{padding:20px 22px;font-size:13px}.release-intro>p:last-child{font-size:13px}.announcements-panel .announce-row-date,.announcements-panel .announce-row-main{grid-column:1}.announcements-panel .announce-row-arrow{grid-column:1;grid-row:auto}
 .page-banner{padding-top:0}.banner-frame{width:100%;min-height:230px}.banner-art{object-position:66% center}
 .banner-copy{padding:36px 20px;max-width:100%}.banner-copy h1{font-size:34px;letter-spacing:-1px;margin-bottom:15px}
 .banner-copy .eyebrow{font-size:11px;margin-bottom:14px}.banner-sub{font-size:13px;max-width:230px}.banner-frame:after{background:linear-gradient(90deg,rgba(0,0,0,.72),rgba(0,0,0,.04))}
 .content-area h2{font-size:23px}.content-area h3{font-size:18px}.content-area .section-sub,.content-area .sub{font-size:13px}
 .content-area .btn{font-size:13px;padding:10px 15px}.content-area input,.content-area textarea{font-size:16px}.content-area input::placeholder{font-size:12px}
 .content-area .form{gap:19px}.content-area .actions{gap:14px}.code-field{gap:8px}.code-field .btn{font-size:12px;padding-inline:10px}
 .topic-nav{gap:12px 25px;font-size:13px}.topic-nav a:last-child{margin-left:0}.video-card-head h2{font-size:23px}.video-card-head p{font-size:13px}.video-card-actions{font-size:12px}
 .video-poster>span{font-size:14px;gap:12px}.video-poster b{width:42px;height:42px;font-size:16px}.video-poster small{bottom:10px;right:14px;font-size:10px}
 .usage-item>summary,.faq-item>summary{font-size:14px;padding:20px 0;gap:15px}.usage-answer,.faq-answer{font-size:13px}.key-tip{padding:12px 14px}
 .help-img-grid{grid-template-columns:1fr}.step-chip{padding:12px;font-size:12px}.content-area .help-block-title{margin-top:38px}
 .network-flow-inner{grid-template-columns:1fr}.flow-device img{max-height:180px}.flow-cable{max-width:120px;margin:auto;width:100%}
 .services-heading{display:block;margin-bottom:24px}.services-heading h2{font-size:24px}.services-heading>p{margin-top:10px;font-size:12px}
 .entry-grid{grid-template-columns:1fr;gap:16px}.entry-card{padding:23px 24px}.entry-card h2{font-size:21px;margin-bottom:8px}.entry-card p{font-size:13px}.service-card-top{margin-bottom:19px}.entry-icon{width:27px;height:27px}.entry-more{font-size:12px}
 .service-note{gap:9px 18px;margin-top:28px;padding-top:22px;font-size:12px}.service-note p{width:100%}.service-note a{margin-left:0}
 .register-layout{grid-template-columns:1fr;gap:38px}.content-area .qr-card{border-left:0;border-top:1px solid var(--line);padding:25px 0 0}.content-area .qr-card img{width:150px}
 .registration-notice{grid-template-columns:1fr;gap:22px;margin-top:35px;padding-top:25px}.registration-notice h2{font-size:20px}.registration-notice p{font-size:13px}
 .registration-contact{display:flex;gap:18px;align-items:center}.registration-contact img{width:110px}
 .unbind-intro{grid-template-columns:1fr;gap:20px}.unbind-contact{display:flex;align-items:center;gap:20px}.unbind-contact img{width:110px}.unbind-contact span{margin-top:0}
 .page-user-unbind .form,.page-feedback .form{grid-template-columns:1fr}.page-feedback textarea{min-height:200px}
 .workflow .workflow-topic{font-size:12px;margin-top:15px}
 .device{align-items:start;flex-direction:column;gap:18px}.machine{font-size:14px}.meta{font-size:12px}
 .hub-card{padding:25px 0 25px 45px}.hub-card h2{font-size:18px}.hub-card p{font-size:13px}.hub-icon{font-size:24px}.top-actions{flex-direction:column;gap:10px}.top-actions .section-sub{margin-bottom:10px}
 .tools-heading h2{font-size:24px}.tools-heading>p:last-child{font-size:13px}.ncm-entry{grid-template-columns:1fr}.ncm-entry-copy{padding:25px}.ncm-entry h2{font-size:24px}.tool-category{font-size:11px}.tool-description{font-size:13px;margin-bottom:18px}.tool-start{margin-top:23px;font-size:13px}
 .tool-visual{border-left:0;border-top:1px solid var(--line-ui);padding:24px;gap:18px}.format-pair{font-size:17px;gap:20px}.format-pair svg{width:22px;height:22px}.audio-wave{height:48px;gap:4px}.visual-caption{display:none}
 .tools-roadmap{flex-wrap:wrap;font-size:12px;gap:8px 10px;padding:21px 0}.tools-roadmap a{margin-left:15px;width:calc(100% - 15px)}
 .drop{min-height:220px;padding:22px 16px}.drop b{font-size:17px}.drop span{font-size:12px}.side{grid-template-columns:1fr;gap:0}
 .download-title{align-items:start;flex-direction:column;gap:6px}.announce-row{grid-template-columns:1fr 18px;gap:8px;padding:22px 0}.announce-row-date{grid-column:1;font-size:11px}.announce-row-main{grid-column:1}.announce-row-arrow{grid-column:2;grid-row:2}.announce-row-title{font-size:16px}.announce-row-summary{font-size:12px}
 .history-fold-title{gap:8px 14px}.history-fold-title h2{font-size:23px}.history-fold-title .chip:last-child{display:none}.history-head{gap:7px 15px}.history-head .title{font-size:15px}.history-head .date{font-size:12px}.history-content{font-size:13px}.history-tip{font-size:12px}
 .detail-head{padding-top:23px}.detail-content{font-size:14px}.page-about .grid{grid-template-columns:1fr;gap:28px}.qr-wrap{grid-template-columns:1fr;gap:15px;margin-top:38px;padding-top:25px}.qr-wrap .qr-card{border-top:0;padding-top:0}
 .download-hero .download-heading{font-size:30px}
}