@charset "UTF-8";

/* White canvas; translucent materials belong to navigation and controls. */
:root {
  color-scheme:light; --paper:#fff; --surface:#f5f5f7; --ink:#1d1d1f;
  --muted:#6e6e73; --green:#0071e3; --deep:#005bb5; --mint:#edf5ff;
  --line:#e5e5e9; --amber:#875314; --red:#b53030; --radius:24px;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Microsoft JhengHei",sans-serif;
  font-size:16px; font-synthesis:none; color:var(--ink); background:#fff;
  -webkit-font-smoothing:antialiased;
}
*{box-sizing:border-box}html{scroll-padding-top:90px}body{margin:0;background:#fff}
a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}
button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.45}button,fieldset{margin:0}fieldset{padding:0;border:0;min-width:0}
input,textarea,select{max-width:100%}h1,h2,h3,p,figure{margin:0}
h1,h2,h3{letter-spacing:-.035em;font-weight:650;text-wrap:balance}
h1{font-size:44px;line-height:1.25}h2{font-size:25px;line-height:1.35}h3{font-size:20px;line-height:1.4}
p{line-height:1.8}strong{font-weight:600}::selection{background:#d5eaff}
:focus-visible{outline:3px solid #0071e3;outline-offset:4px}[hidden]{display:none!important}
.icon{width:20px;height:20px;flex:0 0 auto;vertical-align:middle}
.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;top:-100px;left:16px;z-index:100;padding:12px 20px;color:#fff;background:var(--green);border-radius:30px}.skip-link:focus{top:12px}

/* Global navigation. */
.site-header{position:sticky;top:0;z-index:40;background:#fffffff0;border-bottom:1px solid #1d1d1f0d}
.nav-inner{width:min(100% - 64px,1200px);min-height:64px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}
.site-brand{display:inline-flex;gap:9px;align-items:center;white-space:nowrap}.brand-symbol{display:grid;place-items:center;color:var(--green)}
.brand-symbol .icon{width:27px;height:27px;stroke-width:1.8}.site-brand strong{font-size:15px;letter-spacing:-.02em;font-weight:650}
.brand-zh{padding-left:12px;margin-left:3px;border-left:1px solid #d2d2d7;color:var(--muted);font-size:12px}
.desktop-nav{display:flex;align-items:center;gap:5px}.desktop-nav a{padding:9px 13px;border:1px solid transparent;border-radius:30px;font-size:12px;color:#515154;white-space:nowrap;transition:background .2s,color .2s}
.desktop-nav a:hover{color:var(--ink);background:#00000005}.desktop-nav a[aria-current]{color:var(--ink);background:#f0f0f3;border-color:#ffffffb3;box-shadow:inset 0 1px 0 #fff,0 1px 5px #17243f08}
.header-tools{display:flex;align-items:center;gap:5px}.icon-button{min-width:40px;min-height:40px;display:inline-flex;align-items:center;justify-content:center;padding:8px;border:0;border-radius:50%;background:transparent}
.icon-button .icon{width:19px;height:19px}.icon-button:hover,.icon-button.active{background:#ededf1}
.mobile-menu,.sidebar,.drawer-scrim{display:none}.search-tray{border-top:1px solid #00000007}
.search-wrap{position:relative;width:min(100% - 48px,720px);padding:24px 0;margin:auto}
.search-box{display:flex;align-items:center;gap:13px;min-height:52px;border-bottom:1px solid #d2d2d7}.search-box .icon{width:23px;height:23px;color:var(--muted)}
.search-box input{width:100%;min-width:0;padding:10px 0;font-size:22px;letter-spacing:-.02em;border:0;outline:0;background:transparent}.search-box:focus-within{border-color:var(--green)}.search-box input:focus-visible{outline:none}
.search-box kbd{padding:3px 6px;font:inherit;font-size:11px;color:var(--muted);border:1px solid #d2d2d7;border-radius:5px}.search-wrap>p{margin-top:12px;font-size:12px;color:var(--muted)}
.search-results{position:absolute;left:0;right:0;top:80px;padding:10px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 20px 60px #1b294f1f;z-index:45}
.search-results a,.search-results button{display:flex;width:100%;align-items:center;gap:14px;padding:13px;text-align:left;border:0;border-radius:12px;background:transparent;font-size:14px}
.search-results a:hover,.search-results button:hover{background:#f0f5fc}.search-results span{flex:1}.search-results small{display:block;margin-top:4px;color:var(--muted);font-size:12px}.search-results .icon{width:16px;color:var(--muted)}.search-results>p{padding:15px;font-size:14px}
.main-content{width:min(100% - 80px,1120px);min-height:calc(100svh - 64px);padding-top:44px;margin:auto;outline:none}.page-home .main-content{width:100%;padding-top:0}.home-section{width:min(100% - 80px,1120px);margin-inline:auto}

/* Shared typography, buttons, and surfaces. */
.button-row{display:flex;align-items:center;flex-wrap:wrap;gap:12px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 21px;border:1px solid transparent;border-radius:30px;font-size:14px;font-weight:400;line-height:1.5;text-align:center;transition:background .2s,box-shadow .2s}
.button .icon{width:16px;height:16px}.button.primary{color:#fff;background:var(--green)}.button.primary:hover:not(:disabled){background:#0077ed;box-shadow:0 4px 14px #0071e31a}
.button.secondary{color:var(--green);border-color:#0071e34d;background:#ffffffb3}.button.secondary:hover:not(:disabled){background:#edf5ff;border-color:var(--green)}.button.danger{color:#fff;background:var(--red)}
.button.small-button{min-height:36px;padding:7px 15px;font-size:12px}.full-width{width:100%}
.text-link{display:inline-flex;align-items:center;gap:4px;min-height:40px;color:var(--green);font-size:15px}.text-link .icon{width:15px;height:15px}.text-link:hover{text-decoration:underline;text-underline-offset:4px}
.eyebrow{display:inline-block;color:var(--muted);font-size:12px;font-weight:500;letter-spacing:.04em;line-height:1.6}.muted{color:var(--muted);font-size:14px}.small-note{font-size:12px;color:var(--muted);line-height:1.8}
.badge{display:inline-flex;align-items:center;padding:5px 10px;border-radius:20px;background:#edf5ff;color:#005bb5;font-size:11px;font-weight:500;line-height:1.5;white-space:nowrap}.badge.warm{color:#875314;background:#fff5e5}.badge.light{background:#fff;color:var(--green)}
.panel{min-width:0;padding:28px;border:1px solid var(--line);background:#fff;border-radius:var(--radius)}.panel-heading{display:flex;align-items:center;gap:10px;margin-bottom:16px}.panel-heading>.icon{color:var(--green)}.panel-heading h2{font-size:22px}
.step-label{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#f0f5fc;color:var(--green);font-size:12px}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}.section-heading .eyebrow{margin-bottom:10px}.section-heading h2{font-size:42px;line-height:1.2}
.section-heading.compact{margin-bottom:22px;align-items:center;gap:14px}.section-heading.compact h2{font-size:22px}.section-heading.compact .eyebrow{margin-bottom:6px;font-size:10px}.section-aside{color:var(--muted);font-size:15px;line-height:1.75}
.page-intro{display:flex;flex-direction:column;align-items:center;gap:20px;text-align:center;margin:10px 0 42px}.page-intro h1{margin-top:12px}.page-intro p{max-width:730px;margin-top:16px;color:var(--muted);font-size:17px}
.back-link{display:inline-flex;align-items:center;gap:5px;min-height:38px;margin-bottom:8px;color:var(--green);font-size:13px}.back-link .icon{width:13px;transform:rotate(180deg)}

/* Homepage: the waveform is the main visual. */
.home-hero{padding:54px 24px 30px;text-align:center;overflow:clip}.hero-copy{position:relative;z-index:1}.hero-copy .eyebrow{font-size:14px;font-weight:500;color:#515154}
.hero-copy h1{margin:14px 0 20px;font-size:clamp(45px,5.3vw,68px);line-height:1.16;font-weight:650;letter-spacing:-.055em}.title-accent{color:var(--green)}
.hero-copy>p{color:var(--muted);font-size:19px;line-height:1.65;letter-spacing:-.015em}.hero-copy .button-row{justify-content:center;gap:24px;margin-top:24px}.hero-copy .button{min-height:44px;padding-inline:24px;font-size:15px}.hero-copy .text-link{font-size:15px}
.hero-visual{position:relative;width:min(100%,840px);margin:40px auto 0;text-align:left}.hero-visual::before{content:"";position:absolute;inset:15% -6%;background:radial-gradient(ellipse,#d7e9ff80 0%,#edf2ff38 47%,transparent 70%);pointer-events:none}
.wave-explorer{position:relative;padding:22px 28px 20px;border:1px solid #ffffffed;border-radius:28px;background:#f8fbff;box-shadow:0 12px 50px #1a477711,0 1px 7px #224f7710,inset 0 1px 0 #fff}
.wave-explorer-top{display:flex;justify-content:space-between;align-items:center;gap:14px}.tiny-label{display:inline-flex;align-items:center;gap:7px;color:#515154;font-size:11px}.signal-dot{width:5px;height:5px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px #0071e30d}
.wave-rate{font-size:23px;font-weight:600;letter-spacing:-.04em;font-variant-numeric:tabular-nums}.wave-rate small{margin-left:3px;font-size:9px;font-weight:400;letter-spacing:.04em;color:var(--muted)}
.wave-explorer .chart-label{display:none}.wave-explorer .ecg-chart{margin-top:10px}.wave-explorer .ecg-chart canvas{height:132px}.wave-explorer .chart-ticks{margin-top:4px;font-size:9px;color:#86868b}
.wave-floor{display:flex;align-items:center;gap:24px;margin-top:16px;padding-top:16px;border-top:1px solid #222f4e0a}
.wave-buttons{display:inline-flex;flex-shrink:0;gap:3px;padding:4px;border:1px solid #ffffffd9;border-radius:30px;background:#e9edf380;box-shadow:inset 0 1px 1px #8c9cb610}
.wave-key{min-width:46px;min-height:32px;padding:5px 12px;border:1px solid transparent;border-radius:22px;background:transparent;color:#515154;font-size:12px}.wave-key.selected{color:var(--green);background:#fffffff0;border-color:#fff;box-shadow:0 2px 6px #344e7110,inset 0 1px 0 #fff}.wave-key:hover{background:#ffffff90}
.wave-explanation{display:flex;align-items:baseline;gap:12px;min-width:0}.wave-explanation strong{font-size:12px;white-space:nowrap}.wave-explanation>span{font-size:12px;color:var(--muted);line-height:1.7}
.hero-visual-caption{display:flex;justify-content:space-between;gap:15px;padding:16px 20px 0;font-size:10px;line-height:1.7;color:var(--muted)}
.home-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:32px 0 48px;border-bottom:1px solid var(--line)}.home-stats>a{text-align:center;padding:0 24px}.home-stats>a+a{border-left:1px solid var(--line)}
.home-stats strong{display:inline-flex;align-items:baseline;gap:8px;font-size:32px;line-height:1.3;letter-spacing:-.045em}.home-stats strong span{font-size:12px;font-weight:400;letter-spacing:0;color:var(--muted)}.home-stats p{margin-top:8px;color:var(--muted);font-size:13px}.home-stats a:hover p{color:var(--green)}
.audience-section{padding-top:90px}.audience-section>.section-heading{margin-bottom:34px}.audience-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.audience-card{display:flex;flex-direction:column;align-items:start;min-width:0;padding:32px;border:1px solid #f1f1f4;border-radius:28px;background:var(--surface);transition:transform .25s,box-shadow .25s}.audience-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px #1b294f0c}
.audience-icon{display:inline-flex;align-items:center;justify-content:center;width:45px;height:45px;margin-bottom:30px;color:var(--green)}.audience-icon .icon{width:34px;height:34px;stroke-width:1.35}.audience-icon.sand{color:#5352b8}.audience-icon.lavender{color:#48586a}
.card-audience{color:var(--muted);font-size:11px}.audience-card h3{font-size:27px;line-height:1.35;margin-top:12px}.audience-card p{color:var(--muted);font-size:14px;line-height:1.85;margin:18px 0 28px}.card-link{display:inline-flex;align-items:center;gap:4px;margin-top:auto;color:var(--green);font-size:13px}.card-link .icon{width:13px;height:13px}
.home-bottom{display:grid;grid-template-columns:1.1fr 1fr;gap:24px;margin-top:72px}.featured-case,.simulation-promo{position:relative;min-width:0;overflow:hidden;padding:42px;border-radius:28px;background:#f5f5f7}
.home-bottom h2{font-size:38px;line-height:1.23;margin-top:14px}.home-bottom p{font-size:15px;color:var(--muted);margin:18px 0 12px}.featured-case .mini-wave{margin:30px -15px -8px}.mini-wave .chart-label{font-size:9px}.mini-wave .ecg-chart canvas{height:100px}.mini-wave .chart-ticks{font-size:9px}
.simulation-promo{background:#f3f7fc;display:flex;flex-direction:column;align-items:start}.simulation-promo>.text-link{position:relative;z-index:1;margin-top:auto}.simulation-art{position:relative;align-self:center;display:grid;place-items:center;width:200px;height:140px;margin:12px 0 20px}
.simulation-orbit{position:absolute;width:130px;height:130px;border:1px solid #bad4f166;border-radius:50%}.orbit-two{width:190px;height:190px;border-color:#dce8f580}
.glass-bolt{display:grid;place-items:center;width:92px;height:92px;border:1px solid #fff;border-radius:26px;transform:rotate(-10deg);color:var(--green);background:linear-gradient(135deg,#fffdfb,#dcecff99);box-shadow:12px 14px 30px #235e9b16,inset 0 2px 1px #fff}.glass-bolt .icon{width:49px;height:49px;stroke-width:1.25}
.continue-section{padding:100px 24px;text-align:center}.continue-section h2{font-size:42px;line-height:1.25;margin:16px 0 24px}.continue-section>.text-link{display:flex;justify-content:center;width:fit-content;margin:12px auto 0;font-size:13px}

/* Report understanding. */
.report-layout{display:grid;grid-template-columns:1fr 1fr;align-items:start;gap:32px}.report-input{background:#f8f8fa;border-color:#f1f1f4}.report-input>.muted{margin-bottom:24px}
.field-label{display:block;margin:0 0 10px;font-size:13px;font-weight:500;line-height:1.6}.field-label>span{color:var(--muted);font-size:11px;font-weight:400}
textarea,input[type="number"],select{width:100%;padding:13px 15px;border:1px solid #d2d2d7;border-radius:12px;background:#fff;font-size:14px;line-height:1.7;transition:border-color .2s}
textarea{display:block;resize:vertical;min-height:100px}textarea::placeholder,input::placeholder{color:#86868b}textarea:focus,input[type="number"]:focus,select:focus{border-color:var(--green)}
.input-footnote{display:flex;gap:6px;align-items:center;margin:12px 0 22px;color:var(--muted);font-size:11px;line-height:1.7}.input-footnote .icon{width:13px;height:13px}
.term-shortcuts{margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}.chips{display:flex;flex-wrap:wrap;gap:8px}.chip{display:inline-flex;align-items:center;gap:4px;min-height:35px;padding:7px 12px;border:1px solid #e1e1e5;border-radius:22px;background:#fff;color:#515154;font-size:12px}.chip:hover{border-color:#0071e366;color:var(--green)}.chip .icon{width:11px;height:11px}
.report-output{min-width:0}.report-output>.section-heading{padding:4px 4px 0}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:42px 26px;gap:14px}.empty-illustration{display:grid;place-items:center;width:62px;height:62px;margin-bottom:7px;border-radius:20px;color:#7b8ca5;background:#f2f5fa}.empty-illustration .icon{width:29px;height:29px;stroke-width:1.2}.empty-state h3{font-size:19px}.empty-state p{max-width:350px;font-size:14px;color:var(--muted)}.report-empty{min-height:370px;border:1px dashed #dcdce1;border-radius:24px}
.term-card{padding:26px;margin-bottom:18px;border:1px solid var(--line);border-radius:24px;background:#fff}.term-card-top{display:flex;justify-content:space-between;align-items:start;gap:15px}.term-card h3{margin:12px 0 4px;font-size:25px}.english-term{color:var(--muted);font-size:12px}.term-card>p{margin-top:20px;color:#515154;font-size:14px}.bookmark-button{color:#86868b}.bookmark-button.saved{color:var(--green);background:#edf5ff}
.context-note{padding:16px 18px;margin-top:20px;background:#f5f5f7;border-radius:14px}.context-note strong{font-size:12px}.context-note p{margin-top:6px;color:var(--muted);font-size:12px}
.question-button{display:inline-flex;gap:7px;align-items:center;min-height:36px;margin-top:16px;padding:0;color:var(--green);background:transparent;border:0;font-size:12px}.question-button .icon{width:15px;height:15px}.question-button.added{color:#257247}
.question-list{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-top:30px;background:#f7faff}.question-list h2{margin-top:6px}.question-list ul{padding-left:20px;font-size:14px;line-height:2;color:#515154}.question-list .button{flex-shrink:0}
.context-banner{display:flex;align-items:start;gap:10px;margin:30px 0 0;padding:20px 22px;border-radius:16px;background:#f5f5f7;color:var(--muted)}.context-banner>.icon{width:17px;height:17px;margin-top:4px}.context-banner p{font-size:12px}.context-banner a{display:inline-flex;align-items:center;gap:3px;color:var(--green);margin-left:8px}.context-banner a .icon{width:11px;height:11px}

/* Courses and cases. */
.pill-progress{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border:1px solid #e9edf4;border-radius:22px;background:#f7faff;font-size:12px;color:var(--green)}.pill-progress .icon{width:14px;height:14px}
.learning-path{display:flex;align-items:center;gap:18px;padding:24px 28px;margin-bottom:30px;border-radius:22px;background:#f5f5f7}.path-circle{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;color:var(--green);background:#fff}.learning-path strong{font-size:16px}.learning-path p{margin-top:4px;font-size:13px;color:var(--muted)}.learning-path .button{margin-left:auto;flex-shrink:0}
.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.course-card,.case-card{overflow:hidden;min-width:0;border:1px solid var(--line);border-radius:24px;background:#fff;transition:transform .25s,box-shadow .25s}.course-card:hover,.case-card:hover{transform:translateY(-3px);box-shadow:0 12px 30px #1b294f0b}
.course-art{position:relative;display:flex;justify-content:space-between;align-items:center;height:155px;padding:30px;overflow:hidden;background:#f3f7fc;color:var(--green)}.course-art::after{content:"";position:absolute;width:180px;height:180px;right:-30px;bottom:-90px;border:1px solid #0071e31a;border-radius:50%;box-shadow:0 0 0 28px #0071e305,0 0 0 56px #0071e304}
.course-art-icon{position:relative;z-index:1}.course-art-icon .icon{width:50px;height:50px;stroke-width:1.1}.course-art-number{color:#0071e31a;font-size:76px;font-weight:600;letter-spacing:-.065em;line-height:1}.art-rhythm,.art-system{background:#f5f4fa;color:#605caf}.art-intervals,.art-ischemia{background:#f3f6f8;color:#527585}
.course-card-content,.case-card-content{padding:25px}.course-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:16px;font-size:11px;color:var(--muted)}.course-meta>span:not(.badge){display:inline-flex;align-items:center;gap:5px}.course-meta .icon{width:12px;height:12px}.course-card h3,.case-card h3{font-size:21px}.course-card p,.case-card p{color:var(--muted);font-size:13px;margin-top:12px;line-height:1.85}
.course-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:25px;padding-top:18px;border-top:1px solid #ededf0;color:var(--muted);font-size:11px}.course-foot>span{display:inline-flex;gap:5px;align-items:center}.course-foot>span:last-child,.completion-text{color:var(--green)}.course-foot .icon{width:13px;height:13px}
.lesson-layout{display:grid;grid-template-columns:1.5fr 1fr;align-items:start;gap:28px}.lesson-content{padding:28px}.lesson-visual{margin-bottom:30px}.lesson-visual .wave-explorer{padding:18px;border-radius:20px;box-shadow:none;border-color:#e8edf5}.lesson-visual .wave-floor{flex-wrap:wrap;gap:12px}.lesson-visual .wave-explanation{flex-wrap:wrap;gap:5px 10px}.lesson-aside{position:sticky;top:90px}
.key-points>div{display:flex;align-items:start;gap:16px;padding:21px 0;border-bottom:1px solid var(--line)}.key-points>div>span{font-size:12px;font-weight:500;color:var(--green);padding-top:4px}.key-points p{font-size:14px;color:#515154}
.lesson-related{display:flex;align-items:start;gap:10px;flex-wrap:wrap;margin-top:25px;padding:20px;background:#f5f5f7;border-radius:16px}.lesson-related>.icon{color:var(--green);margin-top:3px}.lesson-related strong{font-size:13px}.lesson-related p{font-size:12px;color:var(--muted);margin-top:4px}.lesson-related .button{min-height:36px;padding:6px 14px;font-size:12px;margin-left:30px}
.quiz-panel>.eyebrow{margin-bottom:10px;font-size:10px}.quiz-panel h2{font-size:23px}.quiz-panel>p{margin:20px 0;font-size:14px;color:#515154}.answer-options{display:grid;gap:10px;margin-bottom:20px}.answer-option{display:flex;align-items:start;gap:10px;padding:14px;border:1px solid #dedee3;border-radius:14px;cursor:pointer;font-size:13px;line-height:1.7}.answer-option:hover{background:#f8faff}.answer-option.chosen{border-color:#0071e3;background:#f0f7ff}.answer-option input{margin:4px 0 0;flex-shrink:0;accent-color:var(--green)}.answer-option>span small{margin-right:8px;color:var(--muted)}.finish-lesson{margin-top:16px}
.feedback{margin-top:18px;padding:18px;border-radius:14px;font-size:13px}.feedback.positive{background:#eff8f3;color:#236044}.feedback.negative{background:#fff5eb;color:#88551b}.feedback strong{display:flex;align-items:center;gap:7px}.feedback strong .icon{width:16px;height:16px}.feedback p{margin-top:9px;font-size:12px}.reading-note{display:flex;gap:9px;padding:20px;color:var(--muted);font-size:12px}.reading-note>.icon{width:16px;height:16px;margin-top:4px}
.filter-bar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:30px}.filter-bar>.muted{font-size:12px}.segment-control{display:inline-flex;padding:5px;border:1px solid #e9e9ee;border-radius:30px;background:#f1f1f4}.segment-control button{min-height:34px;padding:7px 20px;border:1px solid transparent;border-radius:24px;background:transparent;color:var(--muted);font-size:13px}.segment-control button.selected{color:var(--ink);background:#fff;border-color:#fff;box-shadow:0 2px 6px #1b294f0a}
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}.case-wave-preview{padding:22px 24px 18px;background:#f7faff;border-bottom:1px solid #edf0f5}.case-wave-preview .ecg-chart canvas{height:130px}.case-wave-preview .chart-label,.case-wave-preview .chart-ticks{font-size:9px}
.case-detail-layout{display:grid;grid-template-columns:1.7fr 1fr;align-items:start;gap:28px}.case-detail-layout>div{min-width:0;display:grid;gap:24px}.patient-context{background:#f8f8fa}.patient-context p{font-size:14px;color:#515154}.answer-panel{position:sticky;top:90px}.answer-panel h2{margin:10px 0 12px}.answer-panel>p{margin-bottom:22px}.answer-panel .field-label{margin-top:22px}.answer-panel textarea{margin-bottom:20px}.answer-panel>.small-note{margin:18px 0 0}
.workbench-header{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}.workbench-header .eyebrow{font-size:10px;margin-bottom:6px}.workbench-header h2{font-size:21px}.workbench-header>.button{flex-shrink:0}
.ecg-chart{position:relative;min-width:0}.ecg-chart canvas{display:block;width:100%;height:190px}.chart-label{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:9px;font-size:10px;color:var(--muted)}.chart-ticks{display:flex;justify-content:space-between;gap:6px;margin-top:7px;font-size:10px;color:var(--muted);font-variant-numeric:tabular-nums}.chart-caption{display:flex;justify-content:space-between;flex-wrap:wrap;gap:5px 15px;margin-top:20px;font-size:10px;color:var(--muted);line-height:1.7}.is-measurable canvas{cursor:crosshair}.measure-overlay{pointer-events:none}
.measurement-controls{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:22px;padding:16px;border-radius:16px;background:#f5f5f7}.measurement-controls label{width:100px;color:var(--muted);font-size:11px}.measurement-controls input{padding:7px 10px;margin-top:7px;font-size:13px}.measurement-result{margin-left:auto}.measurement-result>span{display:block;font-size:10px;color:var(--muted)}.measurement-result strong{display:block;margin-top:6px;font-size:24px;font-variant-numeric:tabular-nums}.measurement-result small{font-size:11px;font-weight:400}.measurement-controls>p{width:100%;font-size:11px;color:var(--muted)}
.feedback-heading{display:flex;align-items:center;gap:12px;margin-bottom:22px}.feedback-heading>.icon{padding:8px;width:36px;height:36px;border-radius:50%;background:#edf5ff;color:var(--green)}.feedback-heading h2{font-size:20px;margin-top:4px}.feedback-heading .eyebrow{font-size:9px}.case-feedback h3{font-size:16px}
.evidence-list{list-style:none;padding:0;margin:20px 0}.evidence-list li{display:flex;align-items:start;gap:9px;font-size:13px;line-height:1.9;margin:9px 0;color:#515154}.evidence-list .icon{width:14px;height:14px;color:var(--green);margin-top:5px}.case-feedback .button-row{margin-top:22px}

/* Only the simulated medical monitor uses a dark surface. */
.scenario-toolbar{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:28px}.inline-label{display:flex;align-items:center;gap:14px;font-size:13px;white-space:nowrap}.inline-label select{width:265px;font-size:13px;padding:10px 14px}.simulation-time{display:flex;gap:8px;align-items:center;color:var(--muted);font-size:11px}.simulation-time .icon{width:14px;height:14px}.simulation-time strong{font-size:15px;color:var(--ink);font-variant-numeric:tabular-nums}
.simulation-layout{display:grid;grid-template-columns:1.8fr 1fr;align-items:start;gap:26px}.simulation-main,.simulation-layout>aside{display:grid;gap:24px;min-width:0}.monitor-panel{border-radius:24px;overflow:hidden;background:#101b23;color:#dce8ee}
.monitor-header,.monitor-bottom{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:17px 24px;color:#a3b7c5;font-size:9px;letter-spacing:.05em}.monitor-header{border-bottom:1px solid #ffffff14}.monitor-header>span:first-child{display:inline-flex;align-items:center;gap:8px}.monitor-dot{width:5px;height:5px;border-radius:50%;background:#9aefbd}
.monitor-body{display:grid;grid-template-columns:minmax(0,1fr) 92px;gap:24px;padding:25px 24px 22px}.monitor-wave{min-width:0}.dark-chart canvas{height:168px}.dark-chart .chart-label,.dark-chart .chart-ticks{color:#94aeba;font-size:9px}
.monitor-vitals{border-left:1px solid #ffffff1a;padding-left:20px;display:flex;flex-direction:column;justify-content:center;gap:20px}.monitor-vitals span{display:block;color:#a3b7c5;font-size:9px}.monitor-vitals small{font-size:8px}.monitor-vitals strong{display:block;color:#a5e6a4;font-size:42px;font-weight:400;letter-spacing:-.05em;line-height:1.3;font-variant-numeric:tabular-nums}.monitor-vitals b{display:block;margin-top:8px;color:#dce8ee;font-size:13px;font-weight:400}.monitor-bottom{border-top:1px solid #ffffff14;padding-block:14px;letter-spacing:0;font-size:9px}
.sim-patient p{font-size:14px;color:#515154}.patient-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:24px}.patient-actions .button{padding:10px 8px;font-size:11px;min-height:44px}.patient-actions .icon{width:14px;height:14px}.sim-timeline .section-heading h2{font-size:20px}.sim-timeline .section-heading>.muted{font-size:10px;white-space:nowrap}
.latest-event{display:flex;align-items:start;gap:9px;margin-bottom:20px;padding:15px 16px;border-radius:13px;background:#edf5ff;color:#27537c}.latest-event .icon{width:15px;height:15px;margin-top:4px}.latest-event p{font-size:12px}.latest-event.error{background:#fff1ef;color:#a43832}
.event-list{margin:0;padding:0;list-style:none}.event-list li{display:flex;align-items:start;gap:10px;padding:11px 0}.event-list time{padding-top:3px;color:var(--muted);font-size:10px;font-variant-numeric:tabular-nums}.event-dot{margin-top:9px;width:5px;height:5px;border-radius:50%;background:#b8c4d2;flex-shrink:0}.event-list p{color:var(--muted);font-size:12px}.event-list li.error .event-dot{background:var(--red)}.event-list li.error p{color:#a43832}
.defib-title{display:flex;align-items:center;gap:8px;margin-bottom:27px;font-size:16px;font-weight:600}.defib-title>.icon{width:18px;height:18px;color:var(--green)}.device-status{margin-left:auto;padding:4px 8px;border-radius:20px;color:var(--muted);background:#f0f0f3;font-size:10px;font-weight:400}.device-status.charged{color:#875314;background:#fff0d6}
.mode-selector{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:5px;margin:0 0 22px;border:1px solid #e5e5eb;border-radius:18px;background:#f5f5f7}.mode-selector button{min-width:0;min-height:68px;padding:12px 6px;border:1px solid transparent;border-radius:13px;background:transparent;text-align:center}.mode-selector strong{display:block;font-size:13px;font-weight:500}.mode-selector small{display:block;margin-top:5px;color:var(--muted);font-size:7px;letter-spacing:.015em}.mode-selector button.selected{color:var(--green);background:#fff;border-color:#fff;box-shadow:0 2px 8px #1b294f0a}
.device-note{color:var(--muted);font-size:11px;line-height:1.85;margin:12px 0 20px}.defib-panel .button{font-size:12px}.shock-controls{display:grid;grid-template-columns:.8fr 1fr;gap:10px;margin-top:12px}.button.charge-button{color:#875314;background:#fff3dc;border-color:#ecd3a2}.button.shock-button{color:#fff;background:#c43b30}.sim-next{margin-top:22px;padding-top:22px;border-top:1px solid var(--line)}
.objective-panel>.eyebrow{font-size:10px}.objective-panel h2{font-size:21px;margin:9px 0 12px}.objective-panel>.muted{font-size:12px}.objective-list{list-style:none;margin:15px 0 20px;padding:0}.objective-list li{display:flex;align-items:start;gap:10px;padding:12px 0;border-bottom:1px solid #ededf0;font-size:12px;color:var(--muted);line-height:1.75}.objective-list li>span{display:grid;place-items:center;width:18px;height:18px;flex-shrink:0;margin-top:1px}.objective-list i{width:13px;height:13px;border:1px solid #c5c5cb;border-radius:50%}.objective-list .icon{width:15px;height:15px;color:var(--green)}.objective-list li.done{color:var(--ink)}
.completion-summary{padding:18px;border-radius:14px;background:#f0f7ff}.completion-summary strong{font-size:13px;color:var(--deep)}.completion-summary p{color:var(--muted);font-size:11px;margin-top:9px}.completion-summary .text-link{font-size:12px;margin-top:7px}

/* Clinical workspace, learning records, and sources. */
.clinical-layout{display:grid;grid-template-columns:1.3fr 1fr;align-items:start;gap:28px}.clinical-layout>div,.clinical-layout>aside{display:grid;gap:24px;min-width:0}.clinical-form-panel .panel-heading{margin-bottom:24px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 18px}.form-grid label:first-child{grid-column:1 / -1}.form-grid input,.form-grid select{display:block;margin:8px 0 12px}.clinical-form-panel>form>.field-label{margin-top:12px}.clinical-form-panel .small-note{margin:12px 0 22px}.clinical-layout>aside{position:sticky;top:90px}.report-draft .section-heading{align-items:start;flex-wrap:wrap}
.draft-text{font:12px/1.9 "SFMono-Regular",Consolas,"Microsoft JhengHei",monospace;background:#fafafb;min-height:360px}.checkbox-label{display:flex;align-items:start;gap:8px;margin:18px 0;color:var(--muted);font-size:12px;line-height:1.7;cursor:pointer}.checkbox-label input{margin-top:4px;accent-color:var(--green)}.report-draft .button{font-size:12px;padding-inline:17px}.compact-empty{padding:30px 12px}
.reference-links{padding:4px 18px}.reference-links h3{color:var(--muted);font-size:12px;font-weight:500;letter-spacing:0;margin-bottom:9px}.reference-links a{display:flex;align-items:center;gap:9px;min-height:44px;color:#515154;font-size:12px}.reference-links a:hover{color:var(--green)}.reference-links .icon{width:14px;height:14px}.reference-links a>.icon:last-child{margin-left:auto;width:12px}
.progress-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));padding:10px 0 35px;margin-bottom:32px;border-bottom:1px solid var(--line)}.progress-summary>div{padding:0 32px;text-align:center}.progress-summary>div+div{border-left:1px solid var(--line)}.progress-summary>div>span{color:var(--muted);font-size:12px}.progress-summary strong{display:block;margin-top:10px;font-size:42px;line-height:1.3;font-weight:600;letter-spacing:-.06em}.progress-summary small{font-size:14px;color:var(--muted);font-weight:400;letter-spacing:0}.progress-summary p{color:var(--muted);font-size:11px;margin-top:8px}
.records-layout{display:grid;grid-template-columns:1.3fr 1fr;align-items:start;gap:28px}.lesson-record-list>a{display:flex;align-items:center;gap:14px;padding:19px 0;border-bottom:1px solid #ededf0}.lesson-record-list>a:last-child{border-bottom:0}.record-number{display:grid;place-items:center;flex-shrink:0;width:33px;height:33px;border-radius:11px;background:#f2f3f6;color:#6e6e73;font-size:11px}.record-number.done{color:var(--green);background:#edf5ff}.record-number .icon{width:15px;height:15px}.lesson-record-list strong{display:block;font-size:13px}.lesson-record-list small{display:block;margin-top:6px;color:var(--muted);font-size:10px}.record-status{margin-left:auto;color:var(--muted);font-size:10px;white-space:nowrap}.record-status .icon{width:12px;height:12px;margin-left:5px}
.saved-term{display:flex;width:100%;align-items:center;justify-content:space-between;gap:12px;padding:17px 0;text-align:left;background:none;border:0;border-bottom:1px solid var(--line)}.saved-term strong{display:block;font-size:14px}.saved-term small{display:block;margin-top:6px;color:var(--muted);font-size:11px}.saved-term>.icon{width:15px;color:var(--green)}.attempt-records{margin-top:28px}.attempt-records .section-heading{flex-wrap:wrap}.attempt-records .section-heading>.muted{font-size:11px}
.record-table-wrap{overflow-x:auto}.record-table{width:100%;min-width:570px;border-collapse:collapse;text-align:left}.record-table th{padding:14px 10px;border-bottom:1px solid var(--line);font-size:11px;color:var(--muted);font-weight:400}.record-table td{padding:16px 10px;border-bottom:1px solid #ededf0;font-size:12px;color:#515154}.record-table a{color:var(--green)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.about-grid .audience-icon{margin-bottom:20px}.about-grid h2{font-size:23px}.plain-list{margin:20px 0 0;padding-left:20px;color:#515154;font-size:14px;line-height:2}.plain-list li{margin-bottom:12px}.sources-panel{margin-top:28px}.sources-panel h2{margin:10px 0 14px}.sources-panel>.muted{margin-bottom:22px;font-size:13px}
.source-row{display:flex;align-items:center;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}.source-row:last-child{border-bottom:0;padding-bottom:4px}.source-icon{display:grid;place-items:center;flex-shrink:0;width:42px;height:42px;border-radius:14px;background:#f2f5fa;color:var(--green)}.source-icon .icon{width:19px;height:19px}.source-row strong{display:block;font-size:14px}.source-row small{display:block;margin-top:6px;font-size:12px;line-height:1.8;color:var(--muted)}.source-row>.icon:last-child{margin-left:auto;width:14px;color:var(--muted)}
.site-footer{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:18px 25px;min-height:100px;margin-top:72px;padding:25px 0;border-top:1px solid var(--line);color:var(--muted);font-size:10px}.page-home .site-footer{width:min(100% - 80px,1120px);margin:0 auto}.footer-brand{display:flex;align-items:center;gap:7px}.footer-brand>.icon{color:var(--green);width:18px}.footer-brand strong{font-size:11px;color:#515154;letter-spacing:-.015em}.footer-brand>span{margin-left:4px}.footer-links{display:flex;align-items:center;gap:18px}.footer-links a:hover,.footer-links button:hover{color:var(--green)}.footer-links button{padding:0;border:0;background:none;font-size:10px;color:var(--muted)}.footer-links .icon{width:11px;height:11px;margin-left:3px}
.toast{position:fixed;z-index:100;left:50%;bottom:28px;max-width:min(600px,calc(100% - 32px));width:max-content;padding:15px 22px;transform:translate(-50%,20px);border:1px solid #fff;border-radius:20px;color:var(--ink);background:#f5f5f7f2;box-shadow:0 10px 40px #1b294f26;opacity:0;pointer-events:none;font-size:13px;line-height:1.75;transition:opacity .2s,transform .2s}.toast.visible{opacity:1;transform:translate(-50%,0)}
.modal-scrim{position:fixed;inset:0;z-index:80;display:grid;place-items:center;padding:24px;background:#1b24394d}.modal{width:min(100%,500px);padding:34px;border:1px solid #fff;border-radius:28px;background:#fff;box-shadow:0 25px 100px #1b294f26}.modal h2{margin-top:14px;font-size:26px}.modal p{margin:18px 0 26px;color:var(--muted);font-size:14px}

/* Opaque surfaces above remain a usable fallback for older browsers. */
@supports ((backdrop-filter:blur(20px)) or (-webkit-backdrop-filter:blur(20px))) {
  .site-header{background:#ffffffc9;-webkit-backdrop-filter:saturate(180%) blur(24px);backdrop-filter:saturate(180%) blur(24px)}
  .wave-explorer{background:linear-gradient(135deg,#ffffffd9,#f3f8ff9c);-webkit-backdrop-filter:saturate(150%) blur(24px);backdrop-filter:saturate(150%) blur(24px)}
  .wave-buttons,.segment-control{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}
  .search-results,.sidebar,.toast{background:#fffffff0;-webkit-backdrop-filter:saturate(160%) blur(24px);backdrop-filter:saturate(160%) blur(24px)}
  .modal-scrim{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
}
@media(min-width:1500px){.home-hero{padding-top:70px}.hero-copy h1{font-size:76px}.hero-visual{width:900px}.wave-explorer .ecg-chart canvas{height:155px}}
@media(max-width:1100px){
  .brand-zh{display:none}.desktop-nav a{padding-inline:10px}.course-grid{gap:18px}.course-card-content{padding:22px}.audience-card{padding:27px}.audience-card h3{font-size:24px}
  .simulation-layout{grid-template-columns:1.5fr 1fr;gap:22px}.monitor-body{gap:15px;padding-inline:20px}.panel{padding:24px}.simulation-time{gap:5px}
}
@media(max-width:1020px){
  .nav-inner{width:calc(100% - 48px);gap:15px}.brand-zh{display:block}.desktop-nav{display:none}.mobile-menu{display:inline-flex}
  .sidebar{position:fixed;inset:76px 16px auto auto;z-index:50;width:min(380px,calc(100% - 32px));max-height:calc(100svh - 96px);overflow-y:auto;display:none;padding:22px;border:1px solid #fff;border-radius:28px;background:#fffffff5;box-shadow:0 20px 70px #22375126,inset 0 1px 0 #fff}
  .drawer-open .sidebar{display:block}.drawer-open .drawer-scrim{position:fixed;display:block;inset:64px 0 0;border:0;background:#20324914;z-index:42}
  .nav-caption{display:block;padding:0 12px 15px;color:var(--muted);font-size:11px}.nav-item{display:flex;align-items:center;gap:12px;min-height:48px;padding:10px 13px;margin-bottom:3px;border-radius:15px;font-size:15px;color:#515154}.nav-item .icon{width:18px;height:18px}.nav-item.active{background:#edf5ff;color:var(--green)}.nav-item:hover{background:#f0f2f6}.nav-divider{height:1px;background:var(--line);margin:13px}.mobile-progress{margin:17px 12px 3px;color:var(--muted);font-size:11px}
  .main-content,.home-section,.page-home .site-footer{width:calc(100% - 56px)}.page-home .main-content{width:100%}.report-layout{gap:24px}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .lesson-layout,.case-detail-layout,.clinical-layout{grid-template-columns:1.3fr 1fr;gap:22px}.lesson-content{padding:22px}.workbench-header{flex-wrap:wrap}.workbench-header h2{font-size:20px}
  .simulation-layout{grid-template-columns:1fr}.simulation-layout>aside{grid-template-columns:1fr 1fr;align-items:start}.monitor-body{grid-template-columns:minmax(0,1fr) 110px;gap:30px;padding:26px}.dark-chart canvas{height:190px}.patient-actions .button{font-size:13px}
  .section-heading h2{font-size:36px}.audience-grid{gap:15px}.audience-card{padding:24px}.audience-card h3{font-size:22px}.audience-card p{font-size:13px}.card-audience{font-size:10px}.home-bottom{gap:20px}.featured-case,.simulation-promo{padding:32px}.home-bottom h2{font-size:32px}.home-bottom p{font-size:13px}
}
@media(max-width:760px){
  h1{font-size:36px}.nav-inner{width:calc(100% - 32px);min-height:60px}.site-brand strong{font-size:14px}.brand-zh{font-size:11px;padding-left:10px}.brand-symbol .icon{width:25px;height:25px}.header-tools{gap:0}.icon-button{min-width:36px;min-height:40px}.progress-link{display:none}.sidebar{top:72px}.drawer-open .drawer-scrim{top:60px}
  .main-content,.home-section,.page-home .site-footer{width:calc(100% - 40px)}.main-content{padding-top:32px}.home-hero{padding:43px 20px 20px}.hero-copy h1{font-size:52px}.hero-copy .eyebrow{font-size:12px}.hero-copy>p{font-size:17px}.hero-copy .button-row{gap:20px}.hero-visual{margin-top:36px}
  .wave-explorer{padding:18px 20px;border-radius:24px}.wave-explorer .ecg-chart canvas{height:140px}.wave-floor{gap:16px}.wave-explanation{flex-wrap:wrap;gap:3px 8px}.wave-explanation>span{font-size:11px}.hero-visual-caption{padding-inline:10px;font-size:9px}.hero-visual-caption>span{display:none}
  .home-stats{padding:25px 0 38px}.home-stats>a{padding:0 12px}.home-stats strong{font-size:28px;gap:6px}.home-stats strong span{font-size:10px}.home-stats p{font-size:11px}.audience-section{padding-top:60px}.section-heading{align-items:start;gap:15px}.section-heading h2{font-size:33px}.section-aside{display:none}
  .audience-grid{grid-template-columns:1fr;gap:16px}.audience-card{position:relative;padding:30px}.audience-icon{position:absolute;right:28px;top:30px;width:36px;height:36px;margin:0}.audience-icon .icon{width:30px;height:30px}.card-audience{padding-right:50px;font-size:11px}.audience-card h3{font-size:28px;margin-top:14px}.audience-card p{max-width:430px;margin:15px 0 18px;font-size:14px}.card-link{min-height:32px}
  .home-bottom{grid-template-columns:1fr;margin-top:40px}.home-bottom h2{font-size:36px}.home-bottom p{font-size:14px}.featured-case,.simulation-promo{padding:32px}.featured-case .mini-wave{margin-top:26px}.simulation-art{align-self:end;margin:-55px -5px 0 0;width:145px;height:145px}.simulation-orbit{width:110px;height:110px}.orbit-two{width:150px;height:150px}.glass-bolt{width:74px;height:74px;border-radius:22px}.glass-bolt .icon{width:40px;height:40px}.simulation-promo>.text-link{margin-top:5px}
  .continue-section{padding:65px 20px}.continue-section h2{font-size:35px}.page-intro{margin:8px 0 32px;gap:16px}.page-intro h1{font-size:34px;margin-top:10px}.page-intro p{font-size:15px;line-height:1.85}.page-intro .eyebrow{font-size:10px}.panel{padding:24px}
  .report-layout,.lesson-layout,.case-detail-layout,.clinical-layout,.records-layout,.about-grid{grid-template-columns:1fr;gap:24px}.report-output>.section-heading{padding-top:5px}.report-empty{min-height:310px}.question-list{align-items:start;flex-direction:column}.lesson-aside,.answer-panel,.clinical-layout>aside{position:static}
  .learning-path{flex-wrap:wrap;gap:12px;padding:22px}.learning-path .path-circle{display:none}.learning-path .button{margin-left:0}.course-grid{gap:18px}.course-card-content{padding:20px}.course-art{height:135px;padding:22px}.course-art-icon .icon{width:40px;height:40px}.course-art-number{font-size:60px}.course-card h3{font-size:19px}.course-card p{font-size:12px}.course-meta{flex-wrap:wrap}.course-foot{font-size:10px;flex-wrap:wrap}
  .case-card-content{padding:22px}.case-grid{gap:20px}.case-card h3{font-size:20px}.case-wave-preview{padding:18px}.case-wave-preview .ecg-chart canvas{height:110px}.case-wave-preview .chart-label{font-size:8px}.filter-bar{flex-wrap:wrap;gap:14px}.filter-bar>.muted{font-size:11px}
  .scenario-toolbar{align-items:start;flex-wrap:wrap;gap:20px}.inline-label{width:100%}.inline-label select{flex:1;width:auto}.scenario-toolbar>.button-row{justify-content:space-between;width:100%}.simulation-layout>aside{grid-template-columns:1fr}.defib-panel{padding:28px}.defib-panel .button{font-size:14px;min-height:46px}.mode-selector strong{font-size:15px}.mode-selector small{font-size:9px}
  .monitor-body{grid-template-columns:minmax(0,1fr) 80px;padding:22px 18px;gap:18px}.monitor-vitals{padding-left:15px}.monitor-vitals strong{font-size:36px}.monitor-header,.monitor-bottom{padding-inline:18px}.dark-chart canvas{height:170px}
  .site-footer{margin-top:48px;padding:25px 0;gap:14px}.site-footer>p{width:100%;order:3}.footer-links{margin-left:auto;gap:12px}.footer-brand>span{display:none}.about-grid .audience-icon{position:static;width:44px;height:44px;margin-bottom:20px}.source-row{gap:12px}.source-row strong{font-size:13px}
}
@media(max-width:480px){
  .site-brand{gap:7px}.site-brand strong{font-size:13px}.brand-zh{font-size:10px;margin-left:1px;padding-left:8px}.header-tools .icon-button{min-width:34px;padding:7px}.header-tools .icon{width:18px}.hero-copy h1{font-size:43px;margin-top:16px}.hero-copy>p{font-size:15px}.hero-copy .button-row{gap:17px;margin-top:22px}.hero-copy .button,.hero-copy .text-link{font-size:13px}.hero-copy .button{padding-inline:22px}.home-hero{padding:38px 16px 16px}.hero-visual{margin-top:30px}
  .wave-explorer{padding:16px;border-radius:22px}.tiny-label{font-size:10px}.wave-rate{font-size:21px}.wave-explorer .ecg-chart canvas{height:120px}.wave-floor{flex-direction:column;align-items:stretch;gap:13px;margin-top:14px;padding-top:13px}.wave-buttons{align-self:center}.wave-key{min-width:58px;min-height:34px}.wave-explanation{justify-content:center;text-align:center;gap:4px 8px;min-height:38px}.wave-explanation strong{font-size:11px}.wave-explanation>span{font-size:10px}.hero-visual-caption{font-size:8px;text-align:center;justify-content:center;padding-top:13px}
  .home-stats{padding:22px 0 30px}.home-stats>a{padding:0 6px}.home-stats strong{font-size:27px;gap:5px}.home-stats strong span{font-size:9px}.home-stats p{font-size:9px;margin-top:7px}.home-section,.main-content,.page-home .site-footer{width:calc(100% - 36px)}.section-heading h2{font-size:32px}.eyebrow{font-size:11px}
  .audience-card{padding:26px}.audience-icon{right:23px;top:26px}.audience-card h3{font-size:26px}.audience-card p{font-size:13px}.featured-case,.simulation-promo{padding:28px}.home-bottom h2{font-size:32px}.home-bottom p{font-size:13px}.simulation-art{width:125px;margin-right:-15px;margin-top:-35px}.orbit-two{width:130px;height:130px}.continue-section h2{font-size:32px}
  .search-box input{font-size:18px}.search-wrap>p{font-size:10px}.page-intro h1{font-size:30px}.page-intro p{font-size:14px}.panel{padding:22px;border-radius:22px}.panel-heading h2{font-size:20px}.report-input .button-row{gap:10px}.report-input .button{padding-inline:16px;font-size:12px}.input-footnote{font-size:10px}.term-card{padding:22px}.term-card h3{font-size:23px}.context-banner{padding:18px}.context-banner p{font-size:11px}
  .course-grid,.case-grid{grid-template-columns:1fr;gap:22px}.course-art{height:145px;padding:26px}.course-card-content{padding:24px}.course-card h3{font-size:22px}.course-card p{font-size:14px}.course-meta,.course-foot{font-size:11px}.lesson-content{padding:20px}.lesson-content>h2{font-size:22px}.lesson-visual .wave-explorer{padding:16px}.key-points p,.answer-option{font-size:13px}.learning-path p{font-size:12px}.learning-path .button{width:100%;margin-top:4px}
  .segment-control{width:100%}.segment-control button{flex:1;padding-inline:12px}.workbench-header{gap:13px}.workbench-header h2{font-size:19px}.ecg-chart canvas{height:180px}.chart-label,.chart-ticks{font-size:9px}.chart-caption{font-size:9px}.measurement-controls{padding:13px;gap:10px}.measurement-controls label{width:80px}.measurement-result{margin-left:0}.measurement-result strong{font-size:22px}.measurement-controls>.icon-button{margin-left:auto}.feedback-heading h2{font-size:18px}.feedback-heading{align-items:start}
  .patient-actions .button{font-size:11px}.patient-actions .icon{width:13px;height:13px}.monitor-body{padding:18px 13px;gap:12px;grid-template-columns:minmax(0,1fr) 72px}.monitor-vitals{padding-left:12px}.monitor-vitals strong{font-size:32px}.monitor-vitals b{font-size:11px}.monitor-header,.monitor-bottom{font-size:8px;padding-inline:13px;gap:8px}.dark-chart .chart-label,.dark-chart .chart-ticks{font-size:8px}.dark-chart canvas{height:150px}.sim-timeline .section-heading{align-items:start}.sim-timeline .section-heading h2{font-size:18px}.inline-label{flex-wrap:wrap;gap:8px}.inline-label select{flex-basis:100%}.defib-panel{padding:24px}.mode-selector strong{font-size:13px}.mode-selector small{font-size:8px}
  .progress-summary>div{padding:0 10px}.progress-summary>div>span{font-size:11px}.progress-summary strong{font-size:33px}.progress-summary small{font-size:12px}.progress-summary p{font-size:10px}.section-heading.compact h2{font-size:20px}.lesson-record-list>a{gap:10px}.lesson-record-list strong{font-size:12px}.record-status{font-size:9px}.record-status .icon{margin-left:0}.record-number{width:30px;height:30px}.plain-list{font-size:13px}.source-row{align-items:start}.source-icon{width:32px;height:32px;border-radius:10px}.source-row>.icon:last-child{margin-top:5px}.source-row small{font-size:11px}
  .site-footer{gap:13px}.footer-links{gap:12px;margin-left:0}.footer-links a,.footer-links button,.site-footer>p{font-size:9px}.modal{padding:26px;border-radius:24px}.modal h2{font-size:24px}
}
@media(max-width:360px){
  .brand-zh{display:none}.hero-copy h1{font-size:38px}.hero-copy>p{font-size:13px}.hero-copy .button-row{gap:12px}.hero-copy .button,.hero-copy .text-link{font-size:12px}.home-stats strong{font-size:24px}.home-stats strong span,.home-stats p{font-size:8px}.wave-explanation>span{font-size:10px}.page-intro h1{font-size:27px}.panel{padding:19px}.patient-actions{grid-template-columns:1fr}.measurement-controls label{width:72px}.measurement-result{width:calc(100% - 54px)}.record-status{display:none}.form-grid{gap:0 12px}.simulation-art{margin-top:0;align-self:center}
}
@media(pointer:coarse){.icon-button{min-width:42px;min-height:44px}.wave-key{min-height:40px}.chip,.segment-control button,.question-button{min-height:42px}textarea,input[type="number"],select,.form-grid input,.form-grid select,.inline-label select{font-size:16px}}
@media(max-width:480px){.patient-actions{grid-template-columns:1fr}.patient-actions .button{font-size:13px}.wave-explanation strong,.wave-explanation>span{font-size:12px}}
@media(prefers-reduced-transparency:reduce){.site-header,.wave-explorer,.wave-buttons,.search-results,.sidebar,.toast{background:#fff;-webkit-backdrop-filter:none;backdrop-filter:none}.modal-scrim{-webkit-backdrop-filter:none;backdrop-filter:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}.audience-card:hover,.course-card:hover,.case-card:hover{transform:none}}
@media(forced-colors:active){.button,.wave-key,.segment-control button,.mode-selector button,.icon-button{border:1px solid ButtonText}.wave-key.selected,.segment-control .selected,.mode-selector .selected{outline:2px solid Highlight}}

/* Role selection and tailored starting points. */
.role-switch{display:inline-flex;align-items:center;gap:6px;min-height:38px;padding:7px 12px;border:1px solid #e8ebf0;border-radius:24px;background:#ffffffd9;color:#515154;font-size:12px;white-space:nowrap;box-shadow:inset 0 1px 0 #fff,0 2px 9px #1b294f08}
.role-switch .icon{width:16px;height:16px}.role-switch:hover{color:var(--green);background:#f5f9ff;border-color:#d6e7f8}
.role-entry{padding:62px 0 28px}.role-entry-heading{text-align:center}.role-entry-heading>.eyebrow{font-size:13px;color:#515154}
.role-entry h1{font-size:clamp(44px,5vw,66px);line-height:1.17;letter-spacing:-.055em;margin:16px 0 20px}.role-entry-heading>p{font-size:18px;color:var(--muted)}
.role-options{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:40px}
.role-choice{position:relative;display:flex;flex-direction:column;align-items:start;min-width:0;min-height:212px;padding:24px;border:1px solid #e9e9ee;border-radius:26px;background:#f8f8fa;box-shadow:inset 0 1px 0 #fff;transition:transform .2s,box-shadow .2s,border-color .2s}
.role-choice:hover{transform:translateY(-3px);border-color:#cfe4f9;box-shadow:0 16px 35px #244b7410,inset 0 1px 0 #fff}.role-choice.is-recent{border-color:#bddbfa;background:#f5f9ff}
.role-choice-icon,.role-tool-icon{display:grid;place-items:center;width:42px;height:42px;margin-bottom:22px;border:1px solid #fff;border-radius:14px;color:var(--green);background:#fff;box-shadow:0 4px 12px #2147750a,inset 0 1px 0 #fff}
.role-choice-icon .icon,.role-tool-icon .icon{width:21px;height:21px}.role-choice:nth-child(2) .role-choice-icon{color:#5952b1}.role-choice:nth-child(3) .role-choice-icon{color:#526479}
.role-choice-copy{display:block;min-width:0}.role-choice-top{display:flex;align-items:center;gap:10px}.role-choice-top strong{font-size:22px;letter-spacing:-.035em}.recent-role{padding:3px 8px;border-radius:14px;color:var(--deep);background:#e6f1ff;font-size:10px;white-space:nowrap}
.role-choice-caption{display:block;margin-top:7px;font-size:14px;font-weight:500}.role-choice-description{display:block;margin-top:8px;color:var(--muted);font-size:12px;line-height:1.75}.role-choice-arrow{position:absolute;right:22px;top:24px;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;color:var(--green);background:#fff}.role-choice-arrow .icon{width:15px;height:15px}
.role-entry-note{margin-top:18px;text-align:center;color:var(--muted);font-size:11px}.home-explore{display:grid;grid-template-columns:.8fr 1.2fr;align-items:center;gap:60px;padding:95px 0 115px;overflow-x:clip}
.home-explore-copy h2{font-size:42px;line-height:1.25;margin:16px 0 20px}.home-explore-copy p{color:var(--muted);font-size:15px}.home-explore-copy .text-link{margin-top:14px}.home-explore .hero-visual{width:100%;margin:0}
.role-dashboard-hero{padding:28px 0 54px;text-align:center}.role-dashboard-hero>.eyebrow{color:var(--green);font-size:13px}.role-dashboard-hero h1{font-size:clamp(42px,4.7vw,58px);line-height:1.2;margin:18px 0 20px}.role-dashboard-hero>p{max-width:740px;margin:auto;color:var(--muted);font-size:16px}
.role-dashboard-hero .button-row{justify-content:center;gap:20px;margin-top:26px}.role-dashboard-section{margin-top:22px}.role-dashboard-section .section-heading h2{font-size:36px}
.role-tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.role-tool-card{display:flex;flex-direction:column;align-items:start;min-width:0;min-height:230px;padding:28px;border:1px solid #f0f0f3;border-radius:25px;background:#f5f5f7;transition:transform .2s,box-shadow .2s}
.role-tool-card:hover{transform:translateY(-3px);box-shadow:0 15px 35px #1b294f0b}.role-tool-icon{margin-bottom:22px}.role-tool-card h3{font-size:21px}.role-tool-card p{margin:11px 0 20px;color:var(--muted);font-size:13px;line-height:1.8}.role-tool-card .card-link{margin-top:auto}
.role-recommendations{display:grid;grid-template-columns:.9fr 1.1fr;gap:65px;align-items:start;margin-top:78px;padding:45px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.role-recommendations h2{font-size:32px;line-height:1.35;margin-top:12px}.recommendation-list a{display:flex;align-items:center;gap:20px;padding:18px 0;border-bottom:1px solid #eeeef1}.recommendation-list a:first-child{padding-top:0}.recommendation-list a:last-child{border-bottom:0;padding-bottom:0}.recommendation-list a>span{flex:1}.recommendation-list strong{display:block;font-size:15px}.recommendation-list small{display:block;margin-top:7px;color:var(--muted);font-size:12px;line-height:1.7}.recommendation-list .icon{width:15px;height:15px;color:var(--green)}.role-boundary{margin-top:30px}

/* More complex cases distinguish waveforms from text-only clinical information. */
.case-facts-preview{display:flex;flex-direction:column;justify-content:center;align-items:start;gap:9px;min-height:200px;padding:26px;background:#f4f7fb;color:#576477}.case-facts-preview>.icon{width:25px;height:25px;margin-bottom:4px;color:var(--green)}.case-facts-preview span{font-size:10px}.case-facts-preview strong{font-size:19px;color:var(--ink)}.case-facts-preview small{font-size:11px;color:var(--muted)}
.case-facts ul{list-style:none;margin:0;padding:0}.case-facts li{display:flex;align-items:start;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);color:#515154;font-size:14px;line-height:1.8}.case-facts li .icon{width:15px;height:15px;margin-top:5px;color:var(--green)}.case-facts>.small-note{margin-top:16px}
.strip-controls{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;margin:-6px 0 20px}.strip-controls>span{font-size:11px;color:var(--muted)}.strip-controls .segment-control{padding:3px}.strip-controls .segment-control button{flex:0 0 auto;min-height:32px;padding:6px 14px;font-size:11px;white-space:nowrap}
.case-follow-up{margin-top:28px;padding-top:26px;border-top:1px solid var(--line)}.case-follow-up h3{margin:9px 0 13px;font-size:22px}.case-follow-up>p{margin-bottom:20px;color:#515154;font-size:14px}.case-follow-up .button{font-size:13px}.case-follow-up .feedback:focus{outline:none}.case-review-actions{margin-top:25px}
.content-source{display:flex;align-items:baseline;flex-wrap:wrap;gap:5px 12px;margin-top:26px;padding-top:20px;border-top:1px solid var(--line);font-size:11px;color:var(--muted)}.content-source a{color:var(--green);line-height:1.7}.content-source a:hover{text-decoration:underline;text-underline-offset:4px}.content-source .icon{width:11px;height:11px}.lesson-visual-note{margin:12px 2px 0}
@media(max-width:1020px){.home-explore{gap:35px}.role-tool-grid{gap:15px}.role-tool-card{padding:24px}.role-recommendations{gap:40px}}
@media(max-width:760px){
  .role-entry{padding:43px 0 20px}.role-entry h1{font-size:52px}.role-entry-heading>p{font-size:16px}.role-options{grid-template-columns:1fr;gap:12px;margin-top:30px}
  .role-choice{flex-direction:row;align-items:center;gap:17px;min-height:112px;padding:18px 20px}.role-choice-icon{flex-shrink:0;margin:0;width:44px;height:44px}.role-choice-top strong{font-size:20px}.role-choice-caption{font-size:13px;margin-top:4px}.role-choice-description{font-size:11px;margin-top:4px;padding-right:30px}.role-choice-arrow{right:18px;bottom:auto;top:calc(50% - 15px)}
  .role-entry-note{margin-top:15px}.home-explore{grid-template-columns:1fr;gap:26px;padding:65px 0 75px}.home-explore-copy h2{font-size:35px}.home-explore-copy p{font-size:14px}
  .role-dashboard-hero{padding:15px 0 35px}.role-dashboard-hero h1{font-size:42px}.role-dashboard-hero>p{font-size:15px}.role-dashboard-section .section-heading h2{font-size:32px}
  .role-tool-grid{grid-template-columns:1fr;gap:14px}.role-tool-card{position:relative;min-height:0;padding:25px 26px}.role-tool-icon{position:absolute;right:25px;top:23px;margin:0}.role-tool-card h3{padding-right:55px;font-size:21px}.role-tool-card p{max-width:440px;margin:10px 0 15px;font-size:13px}.role-tool-card .card-link{min-height:30px}
  .role-recommendations{grid-template-columns:1fr;gap:25px;margin-top:55px;padding:35px 0}.role-recommendations h2{font-size:29px}.recommendation-list a:first-child{padding-top:0}.case-facts-preview{min-height:165px}
}
@media(max-width:480px){
  .role-switch{gap:4px;min-height:34px;padding:6px 8px;font-size:11px}.role-switch .icon{width:15px;height:15px}.role-entry{padding-top:38px}.role-entry h1{font-size:43px}.role-entry-heading>p{font-size:14px}.role-options{margin-top:25px}.role-choice{gap:14px;min-height:103px;padding:16px}.role-choice-icon{width:40px;height:40px;border-radius:13px}.role-choice-top strong{font-size:19px}.role-choice-caption{font-size:12px}.role-choice-description{font-size:10px}.role-choice-arrow{right:14px}
  .role-entry-note{font-size:10px}.home-explore{padding:55px 0 65px}.home-explore-copy h2{font-size:32px}.home-explore-copy p{font-size:13px}.role-dashboard-hero h1{font-size:34px}.role-dashboard-hero>p{font-size:14px}.role-dashboard-section .section-heading h2{font-size:30px}.role-recommendations h2{font-size:26px}.role-tool-card{padding:23px}.case-facts li{font-size:13px}.strip-controls{align-items:start}.strip-controls .segment-control{width:auto}.strip-controls .segment-control button{padding-inline:12px}.case-follow-up h3{font-size:20px}.case-follow-up>p{font-size:13px}
}
@media(max-width:360px){.role-entry h1{font-size:38px}.role-choice{gap:11px}.role-choice-description{padding-right:24px}.role-switch{padding-inline:7px}.role-dashboard-hero h1{font-size:30px}.strip-controls{flex-direction:column}}
@media(max-width:480px){.role-choice-description{font-size:12px;line-height:1.65}}