:root{--page:#f4f8ff;--page-grid:#223c6009;--surface:#fff;--surface-soft:#f8fbff;--ink:#172033;--muted:#657086;--line:#dfe7f3;--line-strong:#b9c7dc;--navy:#1d3f68;--navy-dark:#142f50;--accent:#bb5b3f;--accent-dark:#8f3f2c;--olive:#6f8466;--shadow:0 16px 40px #1d3f6814;--serif:Georgia, "Times New Roman", "Songti SC", serif;--sans:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;color:var(--ink);font-family:var(--sans);background:var(--page)}*{box-sizing:border-box}body{background:linear-gradient(90deg, var(--page-grid) 1px, transparent 1px), linear-gradient(180deg, var(--page-grid) 1px, transparent 1px), var(--page);background-size:44px 44px;min-height:100vh;margin:0}button,input,select{font:inherit}button{cursor:pointer}a{color:var(--navy);font-weight:760;text-decoration:none}.topbar{z-index:20;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#f4f8ffeb;justify-content:space-between;align-items:center;gap:28px;min-height:76px;padding:0 clamp(18px,4vw,56px);display:flex;position:sticky;top:0}.brand,.nav-links button,.register-button,.login-button,.primary,.secondary,.paper-card footer button,.icon-action,.close,.side-rail button,.category-strip button{border:1px solid var(--line);color:var(--ink);background:0 0;border-radius:2px}.brand{font:720 25px/1 var(--serif);border:0;flex:none;align-items:center;gap:10px;display:inline-flex}.brand-logo{object-fit:contain;mix-blend-mode:multiply;flex:none;width:38px;height:38px}.beta-badge{border:1px solid var(--line-strong);color:var(--muted);font:820 11px/1 var(--sans);letter-spacing:0;border-radius:2px;padding:5px 8px}.nav-links{background:0 0;border:0;align-items:center;gap:28px;padding:0;display:inline-flex}.topbar-actions{justify-content:flex-end;align-items:center;gap:26px;min-width:0;display:inline-flex}.auth-actions{align-items:center;gap:14px;display:inline-flex}.user-chip{border:1px solid var(--line);max-width:280px;min-height:42px;color:var(--muted);background:#fff;border-radius:2px;align-items:center;gap:10px;padding:0 12px;font-size:14px;font-weight:760;display:inline-flex}.user-chip>span:last-child{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.user-avatar{border:1px solid var(--line-strong);background:var(--navy-dark);color:#fff;border-radius:2px;place-items:center;width:28px;height:28px;font-size:13px;font-weight:860;display:inline-grid}.nav-links button,.category-strip button{min-height:38px;color:var(--ink);border:0;border-radius:2px;padding:0;font-weight:820}.nav-links button.active,.category-strip button.active{color:#fff;background:var(--navy-dark)}.register-button,.login-button,.subscription-button{min-height:42px;padding:0 22px;font-weight:820}.register-button{border-color:var(--navy-dark);background:var(--navy-dark);color:#fff}.login-button{border-color:var(--line-strong);color:var(--ink);background:#fff}.subscription-button{border-color:var(--line-strong);color:var(--navy-dark);background:#fff}.subscription-shell{max-width:980px;margin:0 auto;padding:72px 28px 84px}.subscription-panel{gap:28px;display:grid}.subscription-heading{text-align:center}.subscription-heading h1{color:var(--navy-dark);font:540 clamp(40px, 6vw, 64px)/1.08 var(--serif);margin:0}.subscription-heading p:not(.eyebrow){max-width:560px;color:var(--muted);margin:18px auto 0;font-size:17px;line-height:1.8}.subscription-card{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:2px;gap:26px;padding:clamp(28px,5vw,48px);display:grid}.subscription-card.warning{background:#fff8f5;border-color:#e5b6a9}.subscription-card h2,.subscription-card h3,.subscription-card p{margin:0}.subscription-card>p,.subscription-plan p{color:var(--muted);line-height:1.75}.subscription-status-line{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:24px;padding-bottom:22px;display:flex}.subscription-status-line span,.subscription-plan span,.subscription-meta dt{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px;font-size:12px;font-weight:860;display:block}.subscription-status-line strong{color:var(--ink);font-size:18px}.subscription-status-line mark{color:#46633f;background:#f3faf3;border:1px solid #cfe1d2;border-radius:2px;padding:8px 12px;font-weight:860}.subscription-plan h2{color:var(--navy-dark);font:540 38px/1.1 var(--serif);margin:0 0 10px}.subscription-meta{border:1px solid var(--line);background:var(--line);grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;margin:0;display:grid}.subscription-meta div{background:var(--surface-soft);padding:18px}.subscription-meta dd{color:var(--ink);margin:0;font-weight:820}.subscription-benefits{gap:14px;display:grid}.subscription-benefits ul{color:var(--muted);gap:10px;margin:0;padding-left:20px;line-height:1.65;display:grid}.subscription-actions{flex-wrap:wrap;gap:12px;display:flex}.hero{text-align:center;justify-items:center;max-width:1220px;min-height:auto;margin:0 auto;padding:78px 28px 36px;display:grid}.hero-copy{justify-items:center;display:grid}.hero-copy h1{max-width:860px;color:var(--navy-dark);font:540 clamp(46px, 7vw, 76px)/1.05 var(--serif);letter-spacing:0;margin:0}.hero-copy h1 span{display:block}.eyebrow{color:var(--accent-dark);letter-spacing:.12em;text-transform:uppercase;margin:0 0 18px;font-size:12px;font-weight:860}.lead{max-width:760px;color:var(--muted);margin:24px auto 34px;font-size:18px;font-weight:540;line-height:1.85}.hero-actions{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.primary,.secondary{border-radius:2px;min-height:48px;padding:0 24px;font-weight:850}.primary{border-color:var(--navy-dark);background:var(--navy-dark);color:#fff;box-shadow:0 12px 24px #142f5021}.secondary{background:#fff}.full{width:100%}.hero-panel,.paper-card,.side-rail section,.price-card,.push-card,.login-modal,.detail-drawer,.signal-grid>div{border:1px solid var(--line);box-shadow:var(--shadow);background:#ffffffe0;border-radius:2px}.hero-panel{text-align:left;width:min(920px,100%);margin-top:68px;overflow:hidden}.panel-header{border-bottom:1px solid var(--line);background:var(--navy-dark);color:#fff;justify-content:space-between;align-items:center;padding:22px 28px;display:flex}.panel-header strong{font-family:var(--serif);font-size:22px}.mini-paper{border-bottom:1px solid var(--line);grid-template-columns:58px 1fr;gap:18px;padding:24px 30px;display:grid}.mini-paper:last-child{border-bottom:0}.mini-paper>span{color:var(--navy);font:540 30px/1 var(--serif)}.mini-paper strong{margin-bottom:8px;font-size:17px;display:block}.mini-paper p{color:var(--muted);margin:0;line-height:1.55}.signal-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;max-width:920px;margin:38px auto 86px;padding:0 28px;display:grid}.signal-grid>div{min-height:136px;padding:20px}.signal-grid span{color:var(--muted);font-size:13px;font-weight:820}.signal-grid strong{color:var(--navy-dark);font:540 34px/1 var(--serif);margin:14px 0 8px;display:block}.signal-grid p{color:var(--muted);margin:0;line-height:1.6}.pricing{max-width:1220px;margin:0 auto;padding:28px 28px 92px}.section-title{text-align:center;margin-bottom:34px}.section-title h2{color:var(--navy-dark);font:540 clamp(34px, 5vw, 54px)/1.08 var(--serif);margin:0}.price-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;display:grid}.price-card{min-height:500px;padding:40px 34px;position:relative}.price-card.featured{border-color:var(--navy-dark);transform:translateY(-10px)}.badge{background:var(--navy-dark);color:#fff;border-radius:2px;padding:8px 16px;font-size:13px;font-weight:850;position:absolute;top:-17px;left:50%;transform:translate(-50%)}.price-card h3{margin:0 0 22px;font-size:22px}.price-card>strong{color:var(--navy-dark);font:540 56px/1 var(--serif);margin-bottom:32px;display:block}.price-card small{font:620 15px/1 var(--sans);color:var(--muted)}.price-card ul{gap:16px;margin:0 0 36px;padding:0;list-style:none;display:grid}.price-card li{color:var(--muted);font-weight:650}.price-card li:before{content:"";background:var(--olive);vertical-align:2px;border-radius:2px;width:7px;height:7px;margin-right:11px;display:inline-block}.site-footer{text-align:center;background:#fbfcfd;border-top:1px solid #14365c14;padding:54px 24px 60px}.site-footer strong{color:var(--navy-dark);font:540 clamp(34px, 5vw, 50px)/1 var(--serif);margin-bottom:12px;display:block}.site-footer span{color:var(--muted);font-size:clamp(15px,2.6vw,19px);font-weight:760}.reader-shell{max-width:1360px;margin:0 auto;padding:28px 28px 90px}.reader-tools{grid-template-columns:minmax(520px,max-content);align-items:end;gap:14px;margin-bottom:20px;display:grid}.reader-tools label,.push-card{gap:8px;display:grid}.reader-tools span,.push-card span{color:var(--muted);font-size:13px;font-weight:820}.reader-tools .date-field{align-items:center;gap:14px;display:flex}.date-picker-group{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.date-picker-group>span{color:var(--muted);font-size:13px;font-weight:820}.date-mode{border:1px solid var(--line);background:#fff;display:inline-flex}.date-mode button{border:0;border-right:1px solid var(--line);width:86px;min-height:46px;color:var(--muted);background:0 0;padding:0 14px;font-weight:820}.date-mode button:last-child{border-right:0}.date-mode button.active{color:#fff;background:var(--navy-dark)}.reader-tools .date-field span{flex:none}.reader-tools input,.reader-tools select{border:1px solid var(--line);min-height:46px;color:var(--ink);background:#fff;border-radius:2px;padding:0 14px}.push-card{min-height:76px;box-shadow:none;padding:12px 16px}.push-card strong{font-size:16px}.push-card small{color:var(--muted)}.category-strip{border:1px solid var(--line);background:#ffffffbd;border-radius:2px;justify-content:center;gap:12px;margin-bottom:26px;padding:10px;display:flex;overflow-x:auto}.category-strip button{flex:none;min-width:72px}.reader-layout{grid-template-columns:minmax(0,1fr) 340px;align-items:start;gap:24px;display:grid}.paper-list{align-content:start;gap:18px;display:grid}.list-heading{border:1px solid var(--line);background:#ffffffe0;justify-content:space-between;align-items:center;gap:16px;padding:10px 14px;display:flex}.list-heading h2{color:var(--navy-dark);font:540 18px/1.2 var(--serif);margin:0}.list-heading p{color:var(--muted);margin:3px 0 0;font-size:12px;font-weight:750}.list-heading-actions{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:8px;display:inline-flex}.list-heading button{border:1px solid var(--line);min-height:32px;color:var(--navy-dark);background:#fff;padding:0 10px;font-size:13px;font-weight:820}.folder-toolbar{align-items:center;gap:8px;display:inline-flex}.folder-toolbar select,.folder-assign select{border:1px solid var(--line);height:32px;color:var(--navy-dark);font:750 13px/1 var(--sans);background:#fff;border-radius:2px}.folder-toolbar select{min-width:128px;padding:0 28px 0 10px}.folder-assign{color:var(--muted);align-items:center;gap:8px;font-size:13px;font-weight:750;display:inline-flex}.folder-assign select{width:116px;padding:0 24px 0 8px}.empty-list{border:1px solid var(--line);background:#ffffffe0;padding:30px}.empty-list h2{color:var(--navy-dark);font:540 24px/1.2 var(--serif);margin:0 0 10px}.empty-list p{color:var(--muted);margin:0;line-height:1.7}.paper-card{grid-template-columns:74px minmax(0,1fr);gap:20px;padding:28px;display:grid;box-shadow:0 14px 34px #1d3f6812}.paper-score{border:1px solid var(--line-strong);width:56px;height:56px;color:var(--navy);font:540 24px/1 var(--serif);background:#eef4fc;border-radius:2px;place-items:center;display:grid}.paper-title-row{justify-content:space-between;align-items:flex-start;gap:18px;display:flex}.paper-card h2{color:var(--ink);font:540 25px/1.2 var(--serif);margin:0 0 8px}.meta{color:var(--muted);font-size:14px}.paper-card p{color:var(--muted);line-height:1.75}.paper-actions{flex:none;gap:8px;display:inline-flex}.icon-action{width:38px;height:38px;color:var(--muted);flex:none;place-items:center;padding:0;font-size:20px;font-weight:800;display:grid}.icon-action.active{color:#fff;border-color:var(--navy-dark);background:var(--navy-dark)}.read-later-icon,.share-icon{width:22px;height:22px;display:block}.read-later-icon path,.read-later-icon circle,.share-icon path{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round}.share-action{color:var(--navy)}.icon-action.loading{opacity:.5;cursor:wait}.tag-row{flex-wrap:wrap;gap:8px;margin:16px 0 20px;display:flex}.tag-row span{border:1px solid var(--line);color:var(--muted);background:#eef4fc;border-radius:2px;padding:7px 12px;font-size:13px;font-weight:750}.paper-card footer{border-top:1px solid var(--line);flex-wrap:wrap;align-items:center;gap:16px;padding-top:18px;display:flex}.paper-card footer button{color:var(--navy);border:0;padding:0;font-weight:820}.paper-card footer span{color:#4c6042;background:#edf3ea;border-radius:2px;margin-left:auto;padding:7px 12px;font-size:13px;font-weight:850}.share-export-host{z-index:1000;pointer-events:none;background:#f4f8fffa;place-items:start center;width:100vw;height:100vh;padding:28px;display:grid;position:fixed;top:0;left:0;overflow:auto}.share-card{color:#172033;background:#fff;border:1px solid #dfe7f3;width:760px;padding:46px 52px 42px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,PingFang SC,Microsoft YaHei,sans-serif}.share-card h1,.share-card h2,.share-card h3,.share-brand strong,.share-footer strong{font-family:Georgia,Times New Roman,Songti SC,serif}.share-header{border-bottom:2px solid #142f50;grid-template-columns:minmax(0,1fr) 210px;align-items:start;gap:22px;padding-bottom:26px;display:grid}.share-kicker{color:#bb5b3f;letter-spacing:.08em;text-transform:uppercase;margin:0 0 12px;font-size:12px;font-weight:850}.share-card h1{color:#142f50;margin:0;font-size:30px;font-weight:540;line-height:1.16}.share-brand{text-align:center;background:#f8fbff;border:1px solid #dfe7f3;padding:18px}.share-brand strong{color:#142f50;margin-bottom:8px;font-size:22px;line-height:1;display:block}.share-brand span{color:#657086;font-size:12px;font-weight:760;line-height:1.5}.share-meta-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:22px 0 28px;display:grid}.share-meta-grid div{background:#f8fbff;border:1px solid #dfe7f3;min-height:76px;padding:13px 14px}.share-meta-grid span{color:#657086;margin-bottom:8px;font-size:11px;font-weight:850;display:block}.share-meta-grid strong{color:#172033;font-size:12px;line-height:1.45}.share-summary,.share-section,.share-project{page-break-inside:avoid;break-inside:avoid}.share-summary{background:#f4f8ff;border-left:4px solid #1d3f68;margin-bottom:24px;padding:22px}.share-card h2,.share-card h3{color:#142f50;margin:0 0 10px;font-weight:540}.share-card h2{font-size:22px}.share-card h3{font-size:18px}.share-card p{color:#2c374a;margin:0;font-size:13px;line-height:1.75}.share-tags{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.share-tags span{color:#657086;background:#fff;border:1px solid #dfe7f3;padding:6px 10px;font-size:11px;font-weight:800}.share-section{border-top:1px solid #dfe7f3;margin-top:20px;padding-top:18px}.share-findings{gap:9px;margin:0;padding:0;list-style:none;display:grid}.share-findings li{color:#2c374a;padding-left:18px;font-size:13px;line-height:1.65;position:relative}.share-findings li:before{content:"▸";color:#bb5b3f;font-weight:900;position:absolute;left:0}.share-project{background:#fbfcfd;border:1px solid #dfe7f3;grid-template-columns:1fr 1fr;gap:18px;margin-top:28px;padding:20px;display:grid}.share-project a,.share-footer a{color:#1d3f68;overflow-wrap:anywhere}.share-project small{color:#657086;margin-top:8px;font-size:11px;line-height:1.5;display:block}.share-footer{color:#657086;border-top:2px solid #142f50;justify-content:space-between;gap:20px;margin-top:28px;padding-top:18px;font-size:11px;display:flex}.share-footer span{overflow-wrap:anywhere}.share-footer strong{color:#142f50;flex:none;font-size:15px}.side-rail{align-content:start;gap:18px;display:grid}.side-rail section{box-shadow:none;padding:16px}.side-rail h2{margin:0 0 12px;font-size:17px}.side-rail ol{gap:12px;margin:0;padding:0;list-style:none;display:grid}.side-rail li{border-bottom:1px solid var(--line);color:var(--muted);justify-content:space-between;gap:16px;padding-bottom:12px;display:flex}.side-rail li:last-child{border-bottom:0}.side-rail strong{color:var(--ink)}.side-rail button{text-align:left;background:#fff;width:100%;min-height:36px;margin-bottom:8px;padding:0 12px;font-weight:800}.side-rail .nav-count-row{justify-content:space-between;align-items:center;gap:16px;display:flex}.side-rail .nav-count-row strong{color:var(--navy-dark);font-weight:850}.side-rail .nav-count-row.active{color:#fff;border-color:var(--navy-dark);background:var(--navy-dark)}.side-rail .nav-count-row.active strong{color:#fff}.field-filter{gap:12px;display:grid}.field-filter h2{margin-bottom:8px}.field-group{gap:8px;display:grid}.field-group>button{border-color:var(--line-strong);margin-bottom:0}.field-group>button.active,.field-children button.active{color:#fff;border-color:var(--navy-dark);background:var(--navy-dark)}.field-children{border-left:1px solid var(--line);gap:8px;padding-left:18px;display:grid}.field-children button{min-height:38px;color:var(--muted);margin-bottom:0}.drawer-backdrop,.modal-backdrop{z-index:50;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0c121e94;justify-content:center;display:flex;position:fixed;inset:0}.drawer-backdrop{align-items:flex-end;padding-top:118px}.modal-backdrop{justify-content:center;align-items:center}.auth-backdrop{-webkit-backdrop-filter:none;backdrop-filter:none;background:#eee;align-items:flex-start;padding:68px 24px;overflow:auto}.detail-drawer{background:#fff;border-radius:2px;width:min(1080px,100% - 48px);height:calc(100vh - 118px);padding:0;overflow:hidden}.detail-scroll{height:100%;padding:42px 54px 64px;overflow:auto}.detail-drawer h2,.login-modal h2{color:var(--navy-dark);font:540 34px/1.12 var(--serif);margin:0 0 12px}.detail-drawer section{border-top:1px solid var(--line);padding:22px 0}.detail-drawer h3{margin:0 0 10px}.detail-drawer p,.detail-drawer li{color:var(--muted);line-height:1.8}.analysis-status{border:1px solid var(--line);background:var(--surface-soft);padding:26px}.analysis-status.error{background:#fff6f3;border-color:#e3b9ad}.analysis-status button{border:1px solid var(--line-strong);min-height:36px;color:var(--navy-dark);background:#fff;border-radius:2px;margin-top:14px;padding:0 14px;font-weight:850}.pdf-preview-backdrop{z-index:80;padding:28px}.pdf-preview-modal{border:1px solid var(--line-strong);background:var(--surface);border-radius:2px;grid-template-rows:auto 1fr;width:min(1180px,100vw - 56px);height:min(900px,100vh - 56px);display:grid;box-shadow:0 22px 60px #0c121e47}.pdf-preview-modal header{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;padding:22px 26px;display:flex}.pdf-preview-modal h2{color:var(--navy-dark);font:540 28px/1.15 var(--serif);margin:4px 0 0}.pdf-preview-actions{align-items:center;gap:10px;display:inline-flex}.pdf-preview-actions button{border:1px solid var(--line-strong);min-height:40px;color:var(--navy-dark);background:#fff;border-radius:2px;padding:0 16px;font-weight:850}.pdf-preview-actions button:first-child{border-color:var(--navy-dark);background:var(--navy-dark);color:#fff}.pdf-preview-modal iframe{background:#f3f5f8;border:0;width:100%;height:100%}.analysis-highlights{gap:12px;display:grid}.analysis-highlights article{border:1px solid var(--line);background:var(--surface-soft);grid-template-columns:38px minmax(0,1fr);gap:14px;padding:14px;display:grid}.analysis-highlights article span{border:1px solid var(--line-strong);width:28px;height:28px;color:var(--navy-dark);place-items:center;font-weight:850;display:grid}.analysis-highlights strong{color:var(--navy-dark);font-size:13px}.analysis-highlights p{margin:6px 0 0}.analysis-grid{border-top:1px solid var(--line);grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding:22px 0;display:grid}.analysis-grid div{border:1px solid var(--line);background:var(--surface-soft);padding:12px}.analysis-grid span{color:var(--muted);margin-bottom:6px;font-size:12px;font-weight:850;display:block}.analysis-grid strong{color:var(--ink);font-size:13px}.fallback-note{border:1px solid var(--line);background:var(--surface-soft);border-top:0!important;padding:18px!important}.close{float:right;background:var(--surface-soft);min-height:36px;padding:0 12px;font-weight:800}.login-modal{width:min(820px,100% - 32px);box-shadow:none;background:0 0;border:0;padding:0;position:relative}.auth-panel h2{color:#53637f;text-align:center;font:520 44px/1.12 var(--sans);letter-spacing:0;margin:0 0 38px}.auth-form{background:#fff;border-radius:2px;width:min(100%,780px);margin:0 auto;padding:76px 112px 54px}.auth-close{border:1px solid var(--line);min-height:34px;color:var(--navy-dark);background:#fff;border-radius:2px;padding:0 12px;font-weight:800;position:absolute;top:112px;right:112px}.login-modal label{color:#202532;gap:12px;margin-bottom:26px;font-size:18px;font-weight:850;display:grid}.login-modal input{color:#202532;background:#fff;border:1px solid #d7d7d7;border-radius:2px;min-height:58px;padding:0 22px;font-size:20px;font-weight:720}.login-modal input::placeholder{color:#b9b9b9;font-weight:700}.login-modal input:read-only{background:var(--surface-soft);color:var(--muted)}.captcha-field{gap:12px;margin-bottom:26px;display:grid}.captcha-head{color:#202532;justify-content:space-between;align-items:center;gap:12px;font-size:18px;font-weight:850;display:flex}.captcha-head button,.modal-link{color:var(--navy);background:0 0;border:0;font-weight:850}.captcha-head button:disabled{opacity:.55;cursor:wait}.captcha-row{grid-template-columns:150px minmax(0,1fr);align-items:center;gap:12px;display:grid}.captcha-image{background:var(--surface-soft);height:54px;color:var(--muted);border:1px solid #d7d7d7;border-radius:2px;place-items:center;font-size:13px;font-weight:850;display:grid;overflow:hidden}.captcha-image img{width:150px;height:54px;display:block}.login-message{border:1px solid var(--line);background:var(--surface-soft);color:var(--navy-dark);border-radius:2px;margin:6px 0 18px;padding:10px 12px;font-size:13px;font-weight:750;line-height:1.5}.modal-link{padding:0}.auth-link-row{justify-content:space-between;align-items:center;margin:-12px 0 10px;display:flex}.auth-submit{min-height:60px;margin-top:4px;font-size:21px;font-weight:850}.auth-switch{color:#202532;margin:24px 0 0;font-size:17px;font-weight:760}.auth-switch button,.auth-help a{color:#53637f;background:0 0;border:0;font-weight:850}.auth-help,.auth-terms{color:#a1a1a1;margin:24px 0 0;font-size:15px;font-weight:720;line-height:1.6}.auth-terms{margin-top:18px}.email-code-row{grid-template-columns:minmax(0,1fr) 180px;margin:-14px 0 26px;display:grid}.email-code-row input{border-right:0}.email-code-row button{color:#53637f;background:#fff;border:1px solid #d7d7d7;border-radius:0 2px 2px 0;font-size:18px;font-weight:850}.email-code-row button:disabled,.auth-submit:disabled{opacity:.62;cursor:wait}@media (width<=980px){.topbar{flex-direction:column;align-items:flex-start;gap:12px}.topbar-actions{justify-content:space-between;gap:16px;width:100%}.nav-links{gap:18px;overflow-x:auto}.reader-layout,.reader-tools,.price-grid,.signal-grid{grid-template-columns:1fr}.price-card.featured{transform:none}.paper-card{grid-template-columns:1fr}.paper-score{width:48px;height:48px}}@media (width<=640px){.topbar{padding:12px 16px}.brand{font-size:21px}.auth-actions{gap:8px}.register-button,.login-button{min-height:38px;padding:0 14px}.hero,.reader-shell,.pricing,.signal-grid{padding-left:16px;padding-right:16px}.hero{padding-top:52px}.hero-copy h1{font-size:42px}.hero-panel{margin-top:44px}.paper-card,.login-modal{padding:22px}.drawer-backdrop{padding-top:76px}.detail-drawer{width:100%;height:calc(100vh - 76px)}.detail-scroll{padding:24px 18px 42px}.pdf-preview-backdrop{padding:12px}.pdf-preview-modal{width:100%;height:calc(100vh - 24px)}.pdf-preview-modal header{flex-direction:column;align-items:flex-start}}